JP2016202824A - Moving aid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a movement aid capable of reducing fatigue of an assisted person and ensuring a sufficient walk assisting time.SOLUTION: A movement aid comprises: a traveling base 3 capable of traveling by wheels 17a, 17b, 19a, 19b; a front support part 11 which is provided at a front part side of the traveling base 3 and supports arms of an assisted person by, for example, allowing the arms to be placed on left and right elbow support parts 11a, 11b; and an abdomen bar 15 which is disposed at an intermediate part of front pillars 25a, 25b in a vertical direction between the traveling base 3 and the front support part 11 in the vertical direction by projecting toward a rear of the traveling direction, and with which an abdominal part of the assisted person can come into contact.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a movement assist device that is provided for nursing care or the like and that assists the movement of a person being assisted.

  In the care and rehabilitation of the assistance person who has a walking disorder, the care auxiliary device of patent documents 1 is known as a movement auxiliary device. This movement assisting device assists the walking of the person being assisted by supporting the upper body of the person being assisted.

  This care assisting device has a strut that extends obliquely from the carriage, and includes an arm portion on both the left and right sides, an arm portion, and a connecting portion between the arm portion front end and the arm portion and the strut on the upper side of the strut. It has a frame structure.

  Therefore, the person to be assisted can walk while holding the connecting part or the connecting part while putting the arm part of the apparatus under his / her own heel and supporting the upper body.

  However, since it is necessary for the assistant to travel so as to push the care assisting device through the upper limb of the assistant who holds the connecting portion or the connecting portion, the care assisting device can be smoothly traveled by running resistance. It can be difficult. In addition, when the care assisting device is running, a load is applied to the upper limb of the assistant, so that the assistant is fatigued quickly and it is difficult to ensure sufficient walking assistance time.

JP 2013-31635 A

  The problem to be solved is that it is difficult for the assistant to travel smoothly, the assistant is fatigued quickly, and it is difficult to ensure sufficient walking assistance time.

  The present invention provides a traveling base capable of traveling with wheels in order to allow the assisted person to travel smoothly, reduce fatigue of the assisted person, and ensure sufficient walking assistance time, A movement auxiliary device provided on the front side of the traveling base and having a front support part for supporting the left and right arms of the person being assisted, between the upper and lower sides of the traveling base and the front support part. It is characterized by having an abdominal abutment portion that protrudes and can abut the abdomen of the person being assisted.

  Since the present invention has the above-described configuration, it is possible to perform walking assistance by running the running base while supporting the left and right arms of the person being assisted by the front support portion.

  At this time, the person to be assisted can press the movement assisting device by placing his / her weight on a position close to the center of gravity of the body by placing his / her abdomen on the abdominal abutment part, and the movement assisting device can run smoothly. it can. In addition, when the mobility aid is running, the assistant can receive the load throughout his / her abdomen, reducing the fatigue of the assistant as compared to the case where the load is mainly applied to both arms. It is possible to secure sufficient walking assistance time.

It is the perspective view seen from the right side of a standing assistance walk auxiliary device. Example 1 It is a left view of a standing assistance walk auxiliary device. Example 1 It is a top view of a standing assistance walk auxiliary device. Example 1 It is the front view which removed the side frame and looked at the rear traveling unit from the body front. Example 1 It is a front view of a standing assistance walk auxiliary device. Example 1 It is a decomposition | disassembly left view of the relationship between a front traveling unit and a rear traveling unit, and a side frame. Example 1 It is a front view of a front traveling unit. Example 1 It is a front view of a rear traveling unit. Example 1 It is a side view which shows the coupling | bonding of a side frame and a rear traveling unit. Example 1 It is a top view of a stomach bar. Example 1 FIG. 11 is a cross-sectional view taken along line XI-XI in FIG. 10, showing attachment of the stomach bar. Example 1 It is a front view in the seat surface part storage position which shows the seat surface part supported by the raising / lowering mechanism. Example 1 It is a left view in the seating surface storing position which shows the seating surface part supported by the raising / lowering mechanism. Example 1 It is a rear view of the raising / lowering frame which shows a switchboard. Example 1 It is a front view of a switchboard. Example 1 It is a top view of the seat surface part of a seating position. Example 1 16A is a cross-sectional view at the right transfer position, FIG. 16B is a cross-sectional view at the seating position, and FIG. 16C is a cross-sectional view at the left transfer position. is there. Example 1 It is sectional drawing which concerns on the locking mechanism shown by the XVIII-XVIII line arrow of FIG. Example 1 FIG. 16 is related to the lock mechanism indicated by the arrow XIX-XIX in FIG. 16, (A) is a sectional view showing the lock mechanism at the right transfer position, and (B) shows the lock mechanism at the seating position. It is sectional drawing. Example 1 (A) is sectional drawing at the time of lock release in a seating position, (B) is sectional drawing of the locked state in a left transfer position. Example 1 It is a principal part perspective view of the standing assistance walk auxiliary device which shows the use condition in the transfer position of a seat surface board. Example 1 It is a top view of a stomach bar. (Example 2) FIG. 23 is a sectional view taken along the line XXIII-XXIII in FIG. (Example 2) It is an exploded plan view of a stomach bar. (Example 2) It is a side view which shows the coupling flange of a stomach bar. (Example 2) It is a left view of the standing assistance walk auxiliary device which attached the stomach bar. (Example 3) It is a principal part perspective view which shows attachment of a stomach bar. (Example 3) The attachment part of the front pillar which attaches a stomach bar is shown, (A) is a principal part top view, (B) is a principal part side view. (Example 3) The relationship between the fixing jig which attaches a stomach bar and a front pillar is shown, (A) is a principal part top view, (B) is a BB arrow directional cross-sectional view of (A). (Example 3) The relationship between the fixing jig which attaches a stomach bar and a front pillar is shown, (A) is a principal part top view, (B) is a BB arrow directional cross-sectional view of (A). (Example 3) The relationship between the fixing jig which attaches a stomach bar and a front pillar is shown, (A) is a principal part top view, (B) is a BB arrow directional cross-sectional view of (A). (Example 3) The relationship between the fixing jig which attaches a stomach bar and a front pillar is shown, (A) is a principal part top view, (B) is a BB arrow directional cross-sectional view of (A). (Example 3) The relationship between the fixing jig for attaching the stomach bar and the front pillar is shown, (A) is a plan view of the main part, (B) is a side view of the main part, and (C) is a pin connection at the fitting part. It is sectional drawing. (Example 3) The attachment of a stomach bar is shown, (A) is a principal part top view, (B) is a BB arrow directional cross-sectional view of (A). (Example 3)

  A traveling base that can be traveled by wheels and a front portion of the traveling base for the purpose of enabling the assistee to smoothly travel, reducing fatigue of the assistant, and ensuring sufficient walking assistance time. Moving with an abdominal abutment part that protrudes rearward in the running direction between the upper and lower of the front support part that is provided on the side and supports the left and right arms of the assisted person Realized with an auxiliary device.

  The abdomen abutment part can be provided at the middle part of the upper and lower parts of the front pillar that stands up from the traveling base and supports the front support part at the upper part. The abdomen abutment section includes one or more of a bar expansion / contraction mechanism that changes the rearward protrusion length, a bar angle adjustment mechanism that changes the vertical attachment angle, and a bar vertical position adjustment mechanism that changes the vertical attachment position. May be.

A movement assisting device to which the abdomen abutting part is applied is provided on a traveling base, wherein the seating surface is movable between a seating position in the instrument width direction and a transfer position protruding outward in the instrument width direction with respect to the seating position. A surface support frame, and a seating surface disposed on the seating surface support frame for a person to be seated by the person to be assisted, and the seating surface protruding in the width direction with respect to the seating position and the seating position. You may provide the seat surface part which was movable according to the position.

[Standing support walking aid]
FIG. 1 is a perspective view of the standing assistance walking aid from the right side, FIG. 2 is a left side view of the standing assistance walking aid, FIG. 3 is a plan view of the standing assistance walking aid, and FIG. 4 is a side frame. 5 is a front view of the rear frame as seen from the front of the body, FIG. 5 is a front view of the standing support walking assist device, and FIG. 6 is an exploded left side view of the relationship between the front traveling unit and the rear traveling unit and the side frame. FIG. 7 is a front view of the front traveling unit, FIG. 8 is a front view of the rear traveling unit, and FIG. 9 is an enlarged side view of the main part showing the coupling between the side frame and the rear traveling unit.

  In the following description, the front and rear in the traveling direction are the front and rear in the traveling direction of the standing assistance walking assist device, and may be simply referred to as front and rear. The vessel width direction is a width direction that goes straight in the longitudinal direction of travel of the standing assistance walking assist device, and the left and right are the left and right in the vessel width direction when going straight. The vertical direction is the direction of gravity of the standing assisting walking aid in the horizontal grounding state.

  As shown in FIGS. 1 to 5, the standing assisting walking assist device 1 according to the embodiment of the present invention includes a traveling base 3, a front traveling unit 5, a rear traveling unit 7, a side frame 9, a front support 11, A seat surface portion 13 and an abdominal bar 15 as an abdominal abutment portion are provided. In addition, the standing assistance walk assist device 1 is an example of a movement assist device, and a lifting mechanism described later for standing support may be omitted, and a structure not performing standing support may be employed.

  The traveling base 3 of the standing assistance walking assist device 1 is composed of a lower portion of the front traveling unit 5 and the rear traveling unit 7 and a right side frame 9 in the embodiment. The traveling base 3 has an inverted C shape that is opened between the front traveling unit 5 and the rear traveling unit 7 on the left side when viewed from above, and allows an assistant to enter and exit through an inverted C-shaped opening 3a. . The relationship between the lower portions of the front traveling unit 5 and the rear traveling unit 7 and the right side frame 9 will be described later.

  The traveling base 3 includes wheels 17a, 17b, 19a, and 19b. The wheels 17a and 17b are supported by the front traveling unit 5 as front wheels. The wheels 19a and 19b are supported by the rear traveling unit 7 as rear wheels.

  As shown in FIGS. 1 to 3 and FIGS. 5 to 7, the front traveling unit 5 is formed of metal, resin, fiber reinforced plastic (GFRP, CFRP), or the like, and includes a pipe lower front member 21 and an upper front member 23. And front pillars 25a and 25b.

  As for the lower front member 21, the front part crosses right and left, and the right and left rear part inclines back and downward. A front base panel 27 is fixed on the front portion of the lower front member 21. The wheels 17a and 17b are attached to the lower surface of the front base panel 27 by casters 17aa and 17ba so that the direction can be changed.

  The upper front member 23 has a front portion that extends left and right above the lower front member 21, and a left and right rear portion that is inclined rearward and downward.

  Front joints 29 a and 29 b are fixed to the left and right rear ends of the lower front member 21 and the upper front member 23. The front joints 29a and 29b have a block shape, are formed in a rectangular cross section and have a width on the left and right sides, and are formed so that the top and bottom are relatively longer than the width. The front joints 29a and 29b are provided with flat abutting surfaces 29aa and 29ba that abut on a side frame joint, which will be described later, in a rearward direction along the top and bottom.

  The front pillars 25a and 25b are arranged in parallel to the left and right intermediate portions of the front armor unit 5, and are inclined rearward at an angle θ1 with respect to the vertical direction. The lower ends of the front pillars 25 a and 25 b are coupled to the front base panel 27, and the rear is coupled to and supported by the upper front member 23 above the front base panel 27. The front pillars 25a and 25b have a double structure, and include an outer cylindrical front pillar lower 25aa and 25ba and an inner cylindrical front pillar upper 25ab and 25bb which are nested in the front pillar lower 25aa and 25ba.

  The front support portion 11 is attached to the upper ends of the front pillars 25a and 25b, and the stomach bar 15 is supported at the middle portion.

  The front support unit 11 supports, for example, the left and right forearms of the person being assisted on the front side of the body, and supports the walking posture. The front support portion 11 includes left and right elbow support portions 11a and 11b separately. The left and right elbow support portions 11a and 11b can be adjusted to adjust the front and rear inclination and the vertical position separately from each other by the movable structure of the front and rear inclination adjustment mechanisms 28a and 28b and the vertical position adjustment mechanisms 30a and 30b.

  The front and rear tilt adjustment mechanisms 28a and 28b are provided between the left and right front pillar uppers 25ab and 25bb and the left and right elbow support portions 11a and 11b, respectively, so that the left and right elbow support portions 11a and 11b can be separately adjusted for front and rear tilt. .

  The vertical position adjusting mechanisms 30a and 30b are provided at the upper ends of the front pillar lowers 25aa and 25ba, and can adjust the vertical positions of the front pillar uppers 25ab and 25bb relative to the front pillar lowers 25aa and 25ba. By adjusting the vertical positions of the front pillar uppers 25ab and 25bb, the vertical positions of the left and right elbow support portions 11a and 11b can be adjusted separately.

  In addition to the front / rear tilt adjustment mechanisms 28a, 28b and the vertical position adjustment mechanisms 30a, 30b, a left / right tilt position adjustment mechanism may be added. Furthermore, adjustment by these selective combinations can be performed. In the combination of the front / rear inclination adjustment mechanisms 28a, 28b and the vertical position adjustment mechanisms 30a, 30b and the left / right inclination position adjustment mechanism, the elbow support portions 11a, 11b can be freely adjusted in the XYZ directions (up / down, front / rear, left / right directions), respectively. Can do. For adjustment in the XYZ directions, a ball bearing structure can be adopted.

  The stomach bar 15 is attached to the front pillar lowers 25aa and 25ba, and protrudes toward the rear traveling unit 7 or the seat surface 13 side. The stomach bar 15 can adjust the protruding position toward the seat surface portion 13 by adjusting expansion and contraction. The stomach bar 15 is inclined at an angle θ2 (> θ1) with respect to the front pillars 25a and 25b. However, the inclination angle θ2 of the stomach bar 15 may be set equal to the inclination angle θ1 of the front pillars 25a and 25b (θ2 = θ1). The structure of the stomach bar 15 and attachment to the front pillars 25 and 25b will be described later.

  As shown in FIGS. 1 to 6 and 8, the rear traveling unit 7 is formed of metal, resin, fiber reinforced plastic (GFRP, CFRP), and the like, and includes a lower rear member 31, an upper rear member 33, and a seating surface that are pipe materials. And a support frame 35.

  Rear joints 36 a and 36 b are fixed to the front ends of the lower rear member 31 and the upper rear member 33. The rear joints 36a and 36b are block-shaped, have a rectangular cross section, have a width on the left and right, and are formed to be relatively long above and below the width. The rear joints 36a and 36b are provided with flat abutting surfaces 36aa and 36ba that abut against a side frame joint, which will be described later, facing forward in the vertical direction.

  The lower rear member 31 and the upper rear member 33 are coupled by connecting members 37a and 37b and rear joints 36a and 36b. A lower rear base panel 41 is fixed on the lower rear member 31, and an upper rear base panel 42 is fixed on the upper rear member 33.

  The upper rear member 33 is set to the same height as the front portion of the lower front member 21, and the upper rear base panel 42 is on the same plane as the front base panel 27.

  Shaft support portions 43a and 43b are provided on the left and right portions of the lower rear base panel 41, and the rear wheels 19a and 19b are rotatably supported by the shaft support portions 43a and 43b.

  The rear wheels 19a and 19b are connected to brake units 39a and 39b, which are speed-reducing brakes shown in FIG. 4 and the like, respectively, and are provided with rear wheel locking mechanisms 45a and 45b shown in FIGS. By the deceleration brake, friction is always applied to the rear wheels 19a, 19b, and the traveling speed by the traveling base 3 is automatically limited. However, the deceleration brake can be omitted, and the movement in the empty state can be facilitated. The rear wheels 19a and 19b can be locked and unlocked by the rear wheel locking mechanisms 45a and 45b.

  The seating surface support frame 35 includes left and right rear pillars 35a and 35b, the rear pillars 35a and 35b are fixed to the upper rear base panel 42, and the reinforcing brackets 44a and 44b are connected to the upper rear base panel 42 and the left and right rear pillars 35a and 35b. It is attached to reinforce the gap.

  The seating surface support frame 35 is provided to stand on the rear side in the traveling direction of the traveling base 3 in this attached state, and is inclined rearward at an angle θ3 (<θ1) with respect to the vertical direction. The tilt angle θ3 of the rear pillars 35a and 35b may be set equal to the tilt angle θ1 of the front pillars 25a and 25b (θ3 = θ1). The upper portions of the rear pillars 35a and 35b are coupled by an upper rear cross member 35c. A handle bar 35d is attached below the upper rear cross member 35c and between the upper portions of the rear pillars 35a, 35b, and protrudes rearward of the seating surface support frame 35.

  The seat surface portion 13 is supported by the rear pillars 35a and 35b of the seat surface support frame 35 so as to be movable up and down.

  The side frame 9 shown in FIGS. 1-3, 6 and 9 is made of metal, resin, fiber reinforced plastic (GFRP, CFRP) or the like, and has a plate-like reinforcement bar 49c between the upper and lower pipes 49a, 49b. Is arranged. Side frame joints 49d and 49e are attached to the front and rear ends of the pipes 49a and 49b and the reinforcement bar 49c, and an intermediate reinforcing member 49f is fixed to an intermediate portion.

  The side frame joints 49d and 49e have a block shape, and flat abutting surfaces 49da and 49ea are formed along the top and bottom respectively.

  In the figure, the side frame 9 is disposed between the right front joint 29b and the rear joint 36b. In this arrangement state, the butted surfaces 49da and 49ea of the side frame joints 49d and 49e are butted against the butted surfaces 29ba and 36ba of the front joint 29b and the rear joint 36b separately, and the side frame joints 49d and 49e are butted against the front joint 29b and the rear joint. Each of the joints 36b is fastened and coupled. The outer shapes of the side frame joints 49d and 49e are the same as those of the front joints 29a and 29b and the rear joints 36a and 36b.

  This joint structure is the same between the joints, and a fastening structure between the side frame joint 49e and the rear joint 36b will be described with reference to FIG.

  In FIG. 9, the side frame joint 49e seems to be fastened and coupled to the left rear joint 36a. However, as shown in FIGS. 1 to 3, the side frame joint 49e is fastened to the rear joint 36b. FIG. 9 is a left side view of the structure. In the figure, the side frame joint 49e is fastened and coupled to the rear joint 36b.

  The side frame joint 49e is positioned with respect to the rear joint 36b by pins 59a and 59b and bushes 57a and 57b, and is fastened and coupled by bolts 59a and 59b. The bushes 57a and 57b are supported by the rear joint 36b, and the pins 59a and 59b are supported by the side frame joint 49e. When the tips of the pins 59a and 59b are fitted into the bushes 57a and 57b, the side frame joint 49e is positioned at the rear joint 36b.

  In this positioning state, the bolts 59c and 59d inserted into the through hole from the side frame joint 49e side are screwed into the female thread portion of the rear joint 36b, and the side frame joint 49e is fastened and coupled to the rear joint 36b. The front joint 29a and the side frame joint 49d are similarly fastened and coupled.

  By this fastening connection, the front traveling unit 5 and the rear traveling unit 7 are integrally coupled by the side frame 9, and the standing support walking assist device 1 including the traveling base 3 is configured.

  In this fastened state, the side frame 9 is located on the right side, the left front joint 29a and the rear joint 36a are opened, and the traveling base 3 has an inverted C shape as viewed from above. The pipe 49 a of the side frame 9 is positioned at the same height as the upper rear member 33, and the pipe 49 b is positioned at the same height as the lower rear member 31.

  The side frame 9 can be disposed between the left front joint 29b and the rear joint 36b and fastened and coupled in the same manner. In this case, the space between the right front joint 29a and the rear joint 36a is opened, and the traveling base 3 is C-shaped when seen from the plane. The side frame 9 can also be fixedly provided on the traveling base 3 on either the left or right side.

  The seating surface portion 13 is disposed on the seating surface support frame 35 and has a seating surface on which a person to be assisted is seated. As shown in FIG. 3, the seat surface portion 13 is supported by the seat surface support frame 35 by an elevating mechanism 61. The elevating mechanism 61 makes the seat surface portion 13 movable with respect to the seat surface support frame 35 by an actuator between a seating position and an upper position.

[Stomach bar]
FIG. 10 is a plan view of the stomach bar, and FIG. 11 is a sectional view taken along the line XI-XI in FIG.

  As shown in FIG. 2, the stomach bar 15 is disposed so as to protrude rearward in the traveling direction between the upper and lower sides of the traveling base 3 and the front support portion 11, and can support the abdomen of the person being assisted. The abdomen pad portion is not limited to the stomach bar 15, and the shape, structure, mounting position, mounting structure, and the like are not particularly limited as long as the abdomen of the person being assisted can be hit during walking assistance.

  In this embodiment, the stomach bar 15 is supported by the upper and lower intermediate portions of the front pillars 25a and 25b as shown in FIGS. 10 and 11, and the bar extension mechanism EX, the front pillar 25a, A bar vertical position adjusting mechanism PS for changing the vertical mounting position with respect to 25b is provided.

  The stomach bar 15 is made of metal, resin, fiber reinforced plastic (GFRP, CFRP) or the like. The stomach bar 15 has a stomach support portion 15a at the distal end and a coupling portion 15b having a bar vertical position adjustment mechanism PS at the proximal end, and a bar expansion / contraction mechanism EX between the stomach support portion 15a and the coupling portion 15b. Yes.

  The stomach support portion 15a is formed in a rectangular frame shape when viewed from the plane side, and includes a distal end bar 15aa made of a pipe material, a proximal end bar 15ab, and left and right side bars 15ac and 15ad. The distal end bar 15aa, the proximal end bar 15ab, and the left and right side bars 15ac, 15ad are integrally coupled by welding, adhesion, or the like. Inner pipes 15cb and 15db are integrally provided on the proximal end bar 15ab of the stomach support portion 15a by welding, bonding or the like.

  The coupling portion 15b includes a coupling bar 15ba and coupling flanges 15bb and 15bc. The coupling bar 15ba is made of a pipe material, and coupling flanges 15bb and 15bc are integrally coupled to the left and right ends of the coupling bar 15ba by welding, adhesion, or the like. In FIG. 11, the coupling flange 15bc on the right side of the cross section is illustrated, and the coupling flange 15bb on the left side is denoted by parenthesized symbols, and is not illustrated. Hereinafter, the same applies to the other drawings when only the left and right sides are shown in cross-sectional views.

  The coupling bar 15ba is disposed between the front pillars 25a and 25b. The left and right coupling flanges 15bb and 15bc are fastened to the front pillars 25a and 25b from the left and right inner sides by bolts 15bba and 15bca. By fastening the coupling flanges 15bb and 15bc to the front pillars 25a and 25b, the stomach bar 15 is attached to the front pillars 25a and 25b at an angle θ2 (> θ1) as described above.

  The bar vertical position adjusting mechanism PS changes the fastening position of the coupling flanges 15bb and 15bc with respect to the front pillars 25a and 25b. This bar vertical position adjusting mechanism PS is configured by providing a plurality of female thread portions 25aa, 25baa on the front pillar lowers 25aa, 25ba of the front pillars 25a, 25b. In FIG. 11, bolts 15bba and 15bca are screwed into other female screw parts 25aaa and 25baa which are hidden in the drawing, or overlapped with the coupling bar 15ba.

  Therefore, the stomach bar 15 can be fixed by changing the vertical position along the front pillars 25a and 25b by selecting the female screw portions 25aaa and 25baa.

  The bar expansion / contraction mechanism EX includes outer pipes 15ca and 15da and inner pipes 15cb and 15db having a nested structure. The base ends of the outer pipes 15ca and 15da are coupled to the coupling bar 15ba by welding, adhesion or the like, and the intermediate bar 15e is integrally coupled between the distal ends by welding or adhesion or the like.

  Fastened portions 15 cba and 15 dba are provided at end portions of the inner pipes 15 cb and 15 db, and are inserted into the outer pipes 15 ca and 15 da. A female thread portion 16 is provided in the fastened portions 15cba and 15dba.

  Three insertion holes 15caa and 15daa are provided through the outer pipes 15ca and 15da at regular intervals.

  The threading tool 15f is inserted into the insertion holes 15caa and 15daa, and the tip of the screwing tool 15f is screwed into the female threaded part 16 of the corresponding fastened part 15cba and 15dba in the outer pipes 15ca and 15da. Thus, by fastening the fastened portions 15cba and 15dba, the stomach bar 15 is fixed to fix the expansion and contraction positions of the inner pipes 15cb and 15db relative to the outer pipes 15ca and 15da, and the rearward protruding position is positioned. .

  To change the protruding position of the stomach bar 15, the inner pipes 15cb and 15db are extended so as to be pulled out from the outer pipes 15ca and 15da, the fastened portions 15cba and 15dba are aligned with any of the insertion holes 15caa and 15daa, and the screw 15f is attached. This is possible by screwing into the female threaded portion 16 of the fastened portions 15cba and 15dba.

  The bar expansion / contraction mechanism EX may be provided with only one insertion hole 15caa, 15daa among the insertion holes 15caa, 15daa of the outer pipes 15ca, 15da. In this case, a plurality of fastened portions are provided in the inner pipes 15cb and 15db, and one of the fastened portions is inserted through the insertion holes 15caa and 15daa according to the pulling out of the outer pipes 15ca and 15da. What is necessary is just to be able to selectively fasten by 15f.

  Further, the bar telescopic mechanism EX may be provided with a mechanism that reduces input to the person being assisted when a collision load from the front in the traveling direction is applied. For example, a buffer member such as a spring or a damper is interposed between the outer pipes 15ca and 15da and the inner pipes 15cb and 15db, and the screw tool 15f and the like are cut by a collision load. By this cutting, the relative movement between the inner pipes 15cb and 15db and the outer pipes 15ca and 15da can be absorbed by the buffer member.

[Elevating mechanism]
FIG. 12 shows a seat surface portion supported by the lifting mechanism, and is a front view at the seat portion storing position, FIG. 13 shows a seat surface portion supported by the lifting mechanism, a left side view at the seat portion storing position, and FIG. FIG. 15 is a front view of the switchboard. FIG. 15 is a rear view of the lifting frame showing the switchboard.

  As shown in FIGS. 1 to 4 and 12 to 13, the lifting mechanism 61 includes a lifting frame 62.

  The elevating frame 62 is formed in a rectangular frame shape by a skeleton member made of metal, resin, fiber reinforced plastic (GFRP, CFRP) or the like, and has a recess 62b (FIG. 14) on the back surface. A backrest 63 is attached to the front of the elevating frame 62 in the traveling direction. The backrest 63 includes a cushion 63a. The width of the backrest 63 is set to the width between the rear pillars 35 a and 35 b according to the lifting frame 62. A control board, which will be described later, is accommodated in the recess 62b on the rear surface in the traveling direction of the elevating frame 62, and the space is effectively used.

  Limit switches 64 a and 64 b are attached to the upper surface of the elevating frame 62. A switch plate 65 is disposed on the upper side of the limit switches 64a and 64b. The switch plate 65 is movably supported on the upper surface of the elevating frame 62 by springs 66a and 66b. A stopper 35aa of FIG. 4 is attached to the rear pillar 35b of the seating surface support frame 35 corresponding to the switch plate 65. The limit switches 64a and 64b are attached to the lower surface of the lifting frame 62 in the same manner as the upper surface side.

  Rollers are attached to both sides of the lifting frame 62 in the instrument width direction, and these rollers are accommodated in the rear pillars 35a and 35b. As for the support shaft of the roller, the rear pillars 35a and 35b pass through a slit on the surface facing the lift frame 62, and the support shaft can be moved up and down along the slit.

  The roller has a support function of guiding the lifting movement of the lifting frame 62 and receiving a force acting in the front-rear direction and the width direction of the lifting frame 62. For this reason, for example, four front and rear rollers and right and left rollers are provided on both sides of the lifting frame 62 in the instrument width direction, and these rollers share and receive the force acting in each direction.

  Therefore, the rollers of the elevating frame 62 roll along the rear pillars 35a and 35b, and the elevating frame 62 is guided up and down along the rear pillars 35a and 35b by the rolling of the rollers 67a and 67b. ing.

  The seat surface portion 13 is attached to the backrest 63 on the front side of the lift frame 62, and the seat surface portion 13 moves up and down via the lift frame 62 by the actuator.

  As shown in FIGS. 1, 2, 4, 5, 9, and 14, the actuator includes an electric cylinder device 68. The electric cylinder device 68 is attached between the center in the width direction of the traveling base 3 and the center in the width direction of the elevating frame 62. The electric cylinder device 68 includes a housing 68a, a shaft 68b, an electric motor 68c, and the like.

  In the electric cylinder device 68, a housing 68a is rotatably supported by a shaft support portion 65d at the lower end on the electric motor 68c side. The shaft support portion 65d is disposed on the lower rear base panel 41. The shaft 68b of the electric cylinder device 68 is rotatably supported by a shaft support portion 62a attached to the lifting frame 62 (FIG. 14).

  The electric motor 68c is conductively connected to the control board 69 at the back of the lifting frame 62.

  As shown in FIGS. 14 and 15, the control board 69 is attached to the control board plate 73 together with the battery 70 and the charger 71, and the control board plate 73 is attached in the recess 62 b at the back of the lifting frame 62. With this attachment, the control board 69, the battery 70, and the charger 71 are collectively accommodated in the recess 62b.

  A controller 75 (FIGS. 1 and 21) for remotely controlling the drive control circuit is connected to the control board 69 by wire. The controller 75 is supported by the seat support frame 35 and is held by a person being assisted or by an assistant. Operation is possible. The controller 75 can also be wirelessly connected. The controller 75 may be fixedly provided on the seat support frame 35 or the like. The control board 69 can be provided with a key switch. If the assistant does not perform the unlocking operation with the key switch, the power supply does not start, the operation by the controller 75 can be invalidated, and the malfunction due to the erroneous operation of the person being assisted or the assistant can be prevented.

  By driving and controlling the electric motor 68c by the operation of the controller 75, the elevating frame 62 is raised and lowered between the lower limit position and the upper limit position along the seating surface support frame 35, and the seating surface portion 13 is relatively lowered to the seating position. And a relatively upper upper position.

  At the upper limit position of the elevating frame 62, the switch plate 65 abuts against the stopper 35aa, the springs 66a, 66b are bent, and the switch plate 65 can operate the limit switches 64a, 64b. The operation of the limit switches 64a and 64b causes the control board 69 to stop the electric motor 68c, and the lifting frame 62 is positioned at the upper limit position.

[Sitting surface]
16 is a plan view of the seating surface portion at the seating position, FIG. 17 is related to the slide mechanism shown by the arrow XVII-XVII in FIG. 16, (A) is a cross-sectional view at the right transfer position, and (B). Cross-sectional view at the seating position, (C) Cross-sectional view at the left transfer position, FIG. 18 is a cross-sectional view according to the lock mechanism indicated by the arrow XIIX-XIIX in FIG. 16, and FIG. 19 is XIX-XIX in FIG. (A) is a sectional view showing the locking mechanism at the right transfer position, (B) is a sectional view showing the locking mechanism at the seating position, and FIG. A) is a cross-sectional view of the seated position when unlocked, (B) is a cross-sectional view of the locked state at the left transfer position, and FIG. It is a principal part perspective view of a vessel.

  1 to 4 and 12 to 21, the seat surface portion 13 includes a seat surface base 77, a seat surface plate 79, a seat surface movable mechanism 81, a seat surface lock mechanism 83, and armrests 85 a and 85 b. .

  The seat surface portion 13 protrudes toward the front traveling unit 5 with respect to the seat surface support frame 35 at the seating position (FIG. 2). The seat surface portion 13 has a rectangular shape that is long to the left and right, and the seat surface width before and after the traveling direction is set to be short so that natural standing support is possible. In this embodiment, for example, the seat surface width (front-rear direction width) is 200 mm. However, the seating surface width can be set so that the seating surface width is larger than 200 mm when the standing support walking assisting device 1 is large, and the seating surface width can be adjusted to a person with a large physique. The seating surface width is not limited to 200 mm, and can be set as appropriate according to the specifications of the standing assisting walking assist device 1 in addition to the physique of the person being assisted.

  A distance L is set between the distal end edge of the seat surface portion 13 and the distal end edge of the stomach bar 15 at the lower limit position of the seat surface portion 13, and the distance L gradually increases when the seat surface portion 13 rises along the rear pillars 35a and 35b. To do. Further, the relationship between the seat surface portion 13 and the stomach bar 15 can be adjusted by adjusting the expansion and contraction of the stomach bar 15.

  The seat surface base 77 is formed of an acrylic plate, a metal plate, a wood plate, etc., the main body 77a is rectangular in plan view, and a supported portion 77b is projected at the rear (FIGS. 12, 18, and FIG. 20). The supported portion 77b is provided with shaft support portions 77ba and 77bb. The shaft support portions 77ba and 77bb are rotatably supported by the support brackets 86a and 86b of the backrest 63 so that the seat surface portion 13 can be flipped up. . The seat surface portion 13 is stored in a state along the seat surface support frame 35 by the raising of the seat surface base 77.

  The seat surface plate 79 is formed of a rectangular acrylic plate, metal plate, wood plate, or the like in plan view, and is disposed on the seat surface base 77 to constitute the seat surface. A cushion can also be provided on the seat surface plate 79 as long as it does not hinder transfer.

  The seat surface movable mechanism 81 supports the seat surface plate 79 so as to be movable with respect to the seat surface base 77 to a seating position and a transfer position shifted outward in the instrument width direction with respect to the seating position. The seating position of the present embodiment is the center of the left and right, and the transfer position is a position where the seat plate 79 protrudes left and right from the seat base 77 (FIGS. 17, 18, and 20).

  The seat surface movable mechanism 81 includes two front and rear fixed sliders 87aa, 87ab, 87ba, 87bb and two front and rear movable slide rails 89a, 89b.

  The fixed sliders 87aa, 87ab, 87ba, 87bb are arranged on the seat surface base 77, and are arranged side by side on the left and right centers of the seat surface base 77 in the instrument width direction.

  The two front and rear movable slide rails 89a and 89b are formed to have a length over both ends of the seat surface plate 79 in the instrument width direction. The movable slide rails 89a and 89b also serve as reinforcement of the seating surface plate 79.

  The front movable slide rail 89a is fitted to the fixed sliders 87aa and 87ba, and the rear movable slide rail 89b is fitted to the fixed sliders 87ab and 87bb and slide-guided, and the seat plate 79 is attached to the seat base 77. Switch to the left and right in the instrument width direction.

  A recess 79a is formed on the lower surface of the seating surface plate 79, so that the weight of the seating surface plate 79 is reduced. The movable slide rails 89a and 89b are embedded in a recess having the same depth as the recess 79a. At the left and right ends of the slide rails 89a and 89b, the end portions of the seating surface plate 79 are engaging wall portions 79b and 79c, and the engaging wall portions 79b and 79c engage with the fixed sliders 87aa, 87ab, 87ba, and 87bb. By doing so, the right and left movement limit position of the seating surface plate 79 is determined.

  The seating surface locking mechanism 83 enables the seating surface plate 79 to be locked with respect to the seating surface base 77 at the seating position in the center of the instrument width direction and the left and right transfer positions. The seating surface locking mechanism 83 includes lock recesses 91a, 91b, 91c, a claw portion 93, and an operation portion 95.

  The lock recesses 91a, 91b, and 91c are provided on the upper surface of the seating surface base 77, and are disposed at the left and right center and both left and right sides of the seating surface base 77 in the instrument width direction. The central locking recess 91a is for locking the seat plate 79 in the seating position. The left and right lock recesses 91b and 91c are for locking the seat plate 79 separately to the left and right transfer positions.

  The claw portion 93 is rotatably provided on the seat surface plate 79, and engages with any of the lock recesses 91a, 91b, 91c to lock the movement of the seat surface plate 79 in the lateral direction of the instrument width. The claw portion 93 is provided on the lock shaft 97. The lock shaft 97 is disposed along the vessel width direction so as to extend to the left and right at the rear portion of the seating surface plate 79, and is supported so as to be rotatable about the shaft.

  The operation part 95 is for operating the claw part 93 to release the lock by releasing the engagement with the lock recesses 91a, 91b, 91c. The operation unit 95 is configured by L-shaped handles 95a and 95b, and is coupled to both ends of the lock shaft 97 and arranged along both ends of the seat surface plate 79 in the instrument width direction. The L-shaped tip portions of the handles 95 a and 95 b are locked in the recesses on the front and rear intermediate portions of the seating surface plate 79. A torsion spring (not shown) is fitted to the lock shaft 97, and one arm of the torsion spring is engaged with the seat plate 79 side, and the other arm is engaged with the lock shaft 97 side.

  Accordingly, one of the handles 95a and 95b is lifted and the lock shaft 97 is rotated to allow the claw portion 93 to be detached from the lock recesses 91a, 91b and 91c. When one of the operating handles 95a and 95b is released, the lock shaft 97 is rotated by the urging force of the torsion spring. By this rotation, the claw portion 93 falls into the lock recesses 91a, 91b, 91c corresponding to the position, and the lock is performed. When the claw part 93 does not correspond to the lock recesses 91a, 91b, and 91c and is released from the handles 95a and 95b, the claw part 93 is moved to the lock recesses 91a and 91b by moving the seat plate 79. , 91c are similarly locked.

  The armrests 85a and 85b are supported on the arm support portions 99a and 99b by hinges 100a and 100b (FIGS. 2, 4, and 12). The arm support portions 99a and 99b are provided on the left and right sides of the backrest 63. Therefore, the armrests 85a and 85b can be rotated to a position protruding forward on both sides of the backrest 63 and a retracted position along the backrest 63 as shown in FIG.

[Operation of seating surface]
As shown in FIG. 17, when the seat plate 79 is slid to the transfer position with respect to the seat base 77, either one of the handles 95a and 95b is pulled up as shown in FIG.

  By this pulling up, the lock shaft 97 rotates and the claw portion 93 comes off from the lock recess 91 a, and the seat plate 79 can slide with respect to the seat base 77.

  In this state, when the operator operates the handle 95a or 95b and pulls it outward in the instrument width direction, the seat plate 79 moves from the seating position shown in FIG. It slides as shown in FIG. This sliding movement is reliably and easily performed by the movable slide rails 89a and 89b of the seating surface plate 79 being guided with respect to the fixed sliders 87aa, 87ab, 87ba and 87bb of the seating surface base 77.

  When the seat surface plate 79 is slid to the transfer position, when the hand is released from either of the operated handles 95a and 95b, the rotation of the lock shaft 97 is returned by the biasing force of the torsion spring, and the claw portion 93 corresponds to the corresponding lock recess 91b, The transfer position of the seating surface plate 79 is locked by engaging with any of 91c.

[Transfer operation]
In the present embodiment, the side frame 9 does not exist on the left side of the traveling base 3, and there is an opening 3a. For this reason, as shown in FIG. 21, when the person to be captured is transferred from the chair or bed to the standing support walking assist device 1, the left side of the standing support walking assist device 1 is placed on the chair (or bed or the like). The seat surface height of the seat surface portion 13 with respect to a chair or the like is adjusted by driving the electric motor 68c and driving the electric cylinder device 68 by operating the controller 75.

  After the seat surface height of the seat surface portion 13 is adjusted, the handle 95a is rotated as shown in FIG. 20 to release the lock of the seat surface plate 79 at the seating position, and the handle 95a is pulled as it is, as shown in FIG. Is slid to the transfer position with respect to the seating surface base 77.

  In this transfer position, the assistant on the chair can transfer the seat plate 79 at the transfer position by sliding the buttock laterally. The armrest 85a is previously rotated to the storage position along the backrest 63 as shown in FIG.

  At the time of this transfer, since the seating surface plate 79 protrudes from the seating surface base 77 and is in a cantilever state, the weight of the person being assisted acts on the seating surface plate 79 in the cantilever state.

  The seat plate 79 is formed so that the movable slide rails 89a and 89b extend over both ends of the seat plate 79 in the width direction of the seat and serves also as a reinforcement of the seat plate 79, so that it can reliably receive the weight of the person being assisted. Can do.

  The weight received by the seat plate 79 in the cantilever state is input to the fixed sliders 87aa, 87ab, 87ba, 87bb from the movable slide rails 89a, 89b. Since the front and rear fixed sliders 87aa, 87ba, 87ab, 87bb shown in FIG. 17 are arranged in pairs on the left and right, the load applied to the free end side of the movable slide rails 89a, 89b is fixed sliders 87aa, 87ba, 87ab, It is reliably transmitted to the seat base 77 via 87bb.

  From the seat base 77, loads are input to the rear pillars 35a and 35b through the left and right support brackets 86a and 86b, the backrest 63, and the lifting frame 62 shown in FIG.

  This input is transmitted to the upper rear member 33 by a closed cross-sectional structure as viewed from the left and right directions by the lower portions of the rear pillars 35a and 35b and the reinforcing brackets 44a and 44b and the upper rear base panel 42 shown in FIG. At this time, in the upper rear base panel 42, the input from the rear pillars 35a and 35b can be dispersed on the surface, and the dispersed load can be reliably transmitted to the entire upper rear member 33.

  The load transmitted to the upper rear member 33 includes the lower rear member 31 and the lower rear base panel 41, the upper rear member 33 and the upper rear base panel 42, the connecting members 37a and 37b, and the rear joints 36a and 36b shown in FIG. It is received by the closed cross-section structure part seen from the front.

  Accordingly, the weight input to the cantilever seat plate 79 during the transfer of the assistant can be reliably received by the rigid frame structure, and the transfer of the assistant can be stably performed without the seat plate 79 wobbling. Can be done.

  When the person to be assisted is transferred to the seating surface plate 79 in the cantilever state, the load is biased to the left side of the standing assistance walking assist device 1 in this embodiment. In this case, since the center of gravity of the standing support walking assist device 1 alone is on the right side because the side member 9 is on the right side, the transfer of the supportee to the seat plate 79 in the cantilever state can be performed stably. .

  The feet of the person being assisted at the time of transfer to the seating surface plate 79 can be inserted in a sliding state without lifting the foot between the front traveling unit 5 and the rear traveling unit 7 through the opening 3a. For this reason, even an assistant who does not have muscular strength easily sits on the seat surface portion 13 from a chair, a bed, or the like and moves between the front traveling unit 5 and the rear traveling unit 7 very easily. be able to.

  After the transfer to the seat surface portion 79, as shown in FIG. 20, the lock of the seat surface plate 79 in the transfer position is released by the handle 95a, and the seat surface plate 79 is slid back to the seating position to return the support person to stand. Transfer to the walking aid 1 can be completed.

  At this time, the assistant can also apply force to move toward the seating position while grasping the stomach bar 15 or holding the stomach bar 15, and can move while shifting the foot at the opening 3a, Similarly to the above, there is no need to lift the feet, and easy transfer is possible.

  When the seat surface plate 79 slides to the seating position, the claw portion 93 of the seat surface lock mechanism 83 falls in the lock recess 91a, and the seat surface plate 79 is locked to the seat surface base 77. During this sliding movement, the weight of the person being assisted can be reliably supported by the seat surface portion 13 by the same load transmission as described above. In this manner, the transfer operation of the assistant to the seating position via the slide of the seating surface plate 79 can be performed reliably and stably.

  After the seating surface plate 79 is locked at the seating position, the armrests 85a and 85b are rotated to be in a use state.

[Standing support, walking assistance]
When performing support for standing the assistant who has moved to the seating position, the assistant or the assistant operates the controller 75 shown in FIG. 1 to drive the electric cylinder device 68 shown in FIG. By this driving, the shaft 68b of the electric cylinder device 68 is raised, and the lifting frame 62 is raised from the position shown in FIG. 2 along the rear pillars 35a and 35b. Along with this rise, the seat surface portion 13 and the backrest 63 rise, and when the seat surface portion 13 is raised while pushing up the buttocks of the assistant, the assistant can be raised and the transition to the standing posture can be supported. The raised position of the seat surface portion 13 is adjusted by the controller 75 according to the physique of the person being assisted.

  When the seat surface portion 13 is raised, the seat surface portion 13 is separated from the stomach bar 15. The front-rear distance between the stomach bar 15 and the seat surface portion 13 increases as the seat surface portion 13 rises due to the inclination of the seat surface support frame 35. By extending the front-rear distance to the stomach bar 15, the assistant's standing operation can be facilitated.

  As the seat surface portion 13 rises, that is, as the assistant's standing motion progresses, the seat surface plate 79 moves away from the assistant, and the seating area of the assistant's seat on the seat plate 79 is gradually reduced. The assistant can sit shallowly on the seating surface plate 79, and can stand up more smoothly from the seating surface portion 13 than when the assistant is sitting deeply.

  In this embodiment, since the seating surface width of the seating surface plate 79 is set to be as narrow as 200 mm, the person being supported sits shallowly on the seating surface plate 79 from the beginning, so that the person can stand up more smoothly. Can be made.

  When standing up, the front is closed by the left and right elbow support portions 11a, 11b, etc., and the stomach bar 15 is positioned below the front, so that the Can support.

  After assisting the standing person, when the assistant or the assistant jumps up the seat surface part 13, the seat surface part 13 rotates to a position along the rearward tilt of the seat surface support frame 35, and the seat surface part 13 is retracted. Is done.

  The standing assistant can support the body by placing both arms on the left and right elbow support portions 11 a, 11 b of the front support portion 11, and can easily perform a self-supporting walk while applying the abdomen to the stomach bar 15.

  The assisting person can apply a force to push the weight on the standing assistance walking assist device 1 at a position closer to the center of gravity of the body than the arm by the stomach bar 15, while smoothly running the standing assistance walking assist device 1. Walking with the standing assistance walking aid 1 can be easily performed.

  The load at this time is mainly applied from the abdominal bar 15 to the abdomen of the assistant, and the load applied to both arms from the left and right elbow support portions 11a and 11b is reduced.

  In addition, by adjusting the vertical position and expansion / contraction length of the stomach bar 15 according to the person being assisted by adjusting the bar vertical position adjustment mechanism PS and the bar expansion / contraction mechanism EX, the coverage during walking assistance can be ensured more reliably. The load on the assistant can be reduced.

[Wheelchair use condition]
The standing-up assistance walking aid 1 can be used as a wheelchair while the person being assisted is seated on the seat surface portion 13. At this time, the person being assisted can place his / her feet on the traveling base 3 as appropriate. Further, a footrest panel for placing feet on the traveling base 3 may be provided. For example, the footrest panel can be installed between the front base panel 27 and the front joints 29a and 29b in the front-rear direction while avoiding the upper front member 23. Further, the footrest panel may be spanned between the front joints 29a and 29b, or the side frames 9 may be provided on both sides in the instrument width direction and spanned between the side frames 9.

  In the use state as this wheelchair, the posture of the assistant can be stabilized by grasping the stomach bar 15. Both arms of the person being assisted can be placed on the armrests 85a and 85b on both sides.

  The assistant can hold the handle bar 35d and perform the running support of the standing assistance walking assist device 1.

[Effect of Example 1]
The standing support walking assist device 1 according to the first embodiment of the present invention includes a travel base 3 that can be traveled by wheels 17a, 17b, 19a, and 19b, and a front part of the travel base 3, and the arm of the person being supported is a left and right elbow. And a front support portion 11 that is supported by being placed on the support portions 11a and 11b. Between the upper and lower portions of the traveling base 3 and the front support portion 11, a stomach bar 15 is disposed so as to protrude rearward in the traveling direction with respect to the upper and lower intermediate portions of the front pillars 25a and 25b, and can support the abdomen of the person being assisted. Prepared.

  For this reason, when the assistant walks while running the standing assistance walking assist device 1, the assistant gives the running reaction force to the center of gravity of the body rather than the arm by applying his / her abdomen to the stomach bar 15. It is possible to push the standing support walking assist device 1 while putting weight on a close position, and to smoothly run the standing support walking assist device 1. In addition, when the standing assisting walking assist device 1 is running, the assisting person can receive a load throughout his / her abdomen, and the assisting person's fatigue is reduced compared to when the load is mainly applied to both arms. It can be reduced, and sufficient walking assistance time can be secured.

  Since the standing support walking assist device 1 includes the bar expansion / contraction mechanism EX and the bar vertical position adjustment mechanism PS that change the protruding length of the stomach bar 15 to the rear, by adjusting the expansion / contraction length and vertical position of the stomach bar 15, The stomach bar 15 can be set at a position suitable for the physique of the assistant. For this reason, while being able to drive | stand the standing assistance walk auxiliary device 1 more smoothly, the load of a to-be-supported person can be reduced.

  The standing support walking assisting device 1 having the stomach bar 15 of the present embodiment includes a seating surface support frame 35 provided in the traveling base 3 and a seating surface that is disposed on the seating surface support frame 35 and on which a person being assisted is seated. And a seat surface portion 13 which is movable at a seating position in the instrument width direction and a transfer position protruding outward in the instrument width direction with respect to the seating position.

  Therefore, after the seat surface height of the seat surface portion 13 is adjusted, the handle 95a is rotated as shown in FIG. 20 to unlock the seat plate 79 at the seating position, and the handle 95a is pulled in the lateral direction as it is. The seat plate 79 can be slid to the transfer position with respect to the seat base 77 as shown in FIG.

  In this transfer position, the assistant on the chair can transfer the seat plate 79 at the transfer position by sliding the buttock laterally.

  At this time, the person being assisted can apply a force to move toward the seating position while grasping the stomach bar 15, and the transfer operation can be performed smoothly.

  22 to 25 relate to Example 2, FIG. 22 is a plan view of the stomach bar, FIG. 23 shows attachment of the stomach bar, FIG. 22 is a sectional view taken along line XXIII-XXIII in FIG. FIG. 25 is an exploded plan view of the stomach bar, and FIG. 25 is a side view showing the coupling flange of the stomach bar. Note that the basic configuration is the same as that of the first embodiment, and the same components are denoted by the same reference numerals, and the corresponding components are described by adding the same reference numerals A, and redundant descriptions are omitted. .

  In the standing support walking assist device 1 of the second embodiment, the connecting portion 15Ab of the stomach bar 15A includes a bar angle adjusting mechanism AA instead of the bar vertical position adjusting mechanism PS of the first embodiment. The bar angle adjusting mechanism AA allows the vertical attachment angle to the front pillars 25a and 25b to be changed.

  The bar angle adjusting mechanism AA is configured by rotatably coupling a coupling bar 15ba to coupling flanges 15Abb and 15Abc. In this bar angle adjusting mechanism AA, as shown in FIG. 24, the coupling flanges 15Abb and 15Abc are integrally coupled by a support rod 15baa, and a hollow coupling bar 15ba is rotatably fitted to the outside of the support rod 15baa. .

  Arms 101a and 101b extending to the opposite side in the front-rear direction with respect to the outer pipes 15ca and 15da are fixed to the coupling bar 15ba by welding, adhesion, or the like. The coupling flanges 15Abb and 15Abc are located on the left and right outer sides of the arms 101a and 101b, respectively. Enlarged portions 103a and 103b that bulge with respect to the arms 101a and 101b are formed in the coupling flanges 15Abb and 15Abc in a side view of FIG.

  As shown in FIG. 23, the arms 101a and 101b are formed with two through holes 101aa and 101ba aligned in the extending direction in the turning radius direction, and the enlarged portions 103a and 103b are turned in the turning direction as shown in FIG. A plurality of through-holes 103aa and 103ba that are displaced in position are formed.

  Therefore, any one of the two through holes 101aa and 101ba of the arms 101a and 101b is aligned with any one of the plurality of through holes 103aa and 103ba of the enlarged portions 103a and 103b.

  That is, in the case of the arm 101b, one of the two through holes 101ba of the arm 101b is matched with one of the plurality of through holes 103ba of the enlarged portion 103b.

  The arm 101b can be coupled to the enlarged portion 103b of the coupling flange 15Abc by inserting a pin into the aligned through holes 101ba and 103ba or fastening with a bolt and nut.

  With this connection, the stomach bar 15A can be fixed to the front pillars 25a and 25b at the mounting angle θ2.

  Further, when changing the attachment angle θ2 of the stomach bar 15A, the insertion of the pin or the fastening with the bolt and nut is released, and the tip of the stomach bar 15A is moved up and down so that the through holes 101BA and 103ba can be aligned with each other. To change.

  Then, the stomach bar 15A is attached to the front pillars 25a and 25b by inserting a pin into any one of the matching through holes 101ba and any one of the through holes 103ba or fastening them with bolts and nuts. The angle θ2 can be changed and fixed.

  By adjusting the angle θ2 of the stomach bar 15A and the expansion / contraction adjustment by the bar expansion / contraction mechanism EX, the stomach bar 15 can be more closely matched to the body shape of the person to be assisted, and the running of the standing support walker 1 can be performed more smoothly. It is possible to surely reduce the burden on the assistant.

  Further, the two rows of through holes 103aa and 103ba formed in the enlarged portions 103a and 103b are displaced in the turning direction as shown in FIG. 25, so that an increase in size in the turning direction of the enlarged portions 103a and 103b can be suppressed. .

  In addition, the second embodiment can achieve the same effects as those of the first embodiment.

  FIGS. 26 to 34 relate to Example 3, FIG. 26 is a left side view of the standing support walking assist device to which the stomach bar is attached, FIG. 27 is a perspective view of an essential part showing attachment of the stomach bar, and FIG. The front pillar mounting part for attaching the stomach bar is shown, (A) is a plan view of the principal part, (B) is a side view of the principal part, and FIG. 29 is the relationship between the fixing jig for attaching the stomach bar and the front pillar. (A) is a plan view of the main part, (B) is a cross-sectional view taken along the line BB of (A), and FIG. 30 shows the relationship between the fixing jig for attaching the stomach bar and the front pillar. , (A) is a plan view of the main part, (B) is a cross-sectional view taken along the line BB of (A), FIG. 31 shows the relationship between the fixing jig for attaching the stomach bar and the front pillar, A) is a plan view of the main part, (B) is a cross-sectional view taken along the line BB of (A), and FIG. The relationship between a jig | tool and a front pillar is shown, (A) is a principal part top view, (B) is BB sectional drawing of (A), FIG. 33 is a fixing jig which attaches a stomach bar And (A) is a plan view of the main part, (B) is a side view of the main part, (C) is a cross-sectional view showing pin coupling at the fitting part, and FIG. The attachment of a stomach bar is shown, (A) is a principal part top view, (B) is a BB arrow directional cross-sectional view of (A). The basic configuration is the same as that of the first embodiment, and the same components are denoted by the same reference numerals, and the corresponding components are described by adding the same reference characters B, and redundant descriptions are omitted. .

  In the standing support walking assist device 1 of the third embodiment, the bar vertical position adjusting mechanism PS and the bar expansion / contraction mechanism EX are provided as in the first embodiment, and the structure of the bar vertical position adjusting mechanism PS is changed with respect to the first embodiment. .

  In the third embodiment, as shown in FIG. 27 and the like, a fixing jig 105 is employed instead of the coupling portion 15b of the first embodiment. The fixing jig 105 is mainly made of a pipe material, and includes a support jig 105a and a meshing jig 105b.

  The support jig 105a constitutes a main body by integrally forming an engagement bar 105aa and outer pipes 105ab and 105ac.

  The engagement bar 105aa is a pipe extending in the left-right direction, and the length in the left-right direction is formed to exceed the width between the left and right outer surfaces of the front pillars 25Ba, 25Bb. The engagement bar 105aa is provided with contact blocks 105ad and 105ae fixed at positions corresponding to the front pillars 25Ba and 25Bb.

  Contact surfaces 105ada and 105aea are formed on the contact blocks 105ad and 105ae. The contact surfaces 105ada and 105aea are in contact with the outer surfaces of the front pillars 25Ba and 25Bb so as to be fitted from the front. In this embodiment, the contact surfaces 105ada and 105aea are formed in a circular arc shape in accordance with the circular pipe shape of the front pillars 25Ba and 25Bb. Has been. Upper portions of the contact blocks 105ad and 105ae are extended to the position of the engagement jig 105b along the front pillars 25Ba and 25Bb in the attached state to the front pillars 25Ba and 25Bb. Due to the extension of the contact blocks 105ad and 105ae, the stomach bar 15B is prevented from rotating downward.

  The outer pipes 105ab and 105ac correspond to the outer pipes 15ca and 15da of the first embodiment. In the third embodiment, a plurality of pin holes 105aba and 105aca into which fixing pins are inserted are provided along the outer pipes 105ab and 105ac. It is provided in the stage.

  Of the pin holes 105aba and 105aca, the pin holes 105aba and 105aca closest to the front pillars 25Ba and 25Bb are for fixing the meshing jig 105b and are hidden by the meshing jig 105b in FIG. The other pin holes 105aba and 105aca are for fixing the expansion / contraction positions of the inner pipes 105c and 105d.

  The engagement jig 105b is made of a pipe material, and includes an engagement portion 105ba and fitting portions 105bb and 105bc at both ends.

  The meshing portion 105ba is a pipe extending in the left-right direction, and the outer surface meshes with the meshing recesses 105e and 105f on the front pillars 25Ba and 25Bb side. The fitting portions 105bb and 105bc are pipes that intersect the meshing portion 105ba, are slidably fitted to the outer pipes 105ab and 105ac, and include pin holes 105bba and 105bca.

  The engagement jig 105b is engaged with the engagement portion 105ba toward the front pillars 25Ba and 25Bb, and the pins 105bbb and 105bcb are inserted into the pin holes 105bba and 105bca of the engagement portions 105bb and 105bc.

  The pins 105bbb and 105bcb enter the corresponding pin holes 105aba and 105aca on the outer pipes 105ab and 105ac, and the fitting portions 105bb and 105bc are positioned with respect to the outer pipes 105ab and 105ac.

  The pins 105abb and 105acb are also inserted into the other pin holes 105aba and 105aca, the pins 105abb and 105acb enter the corresponding pin holes of the inner pipes 105c and 105d, and the sliding positions of the inner pipes 105c and 105d with respect to the outer pipes 105ab and 105ac Is fixed.

  As described above, in the bar expansion / contraction mechanism EX of the third embodiment, the screws 105f and the fastened portions 15cba and 15dba of the bar expansion / contraction mechanism EX of the first embodiment are fixed by the pins 105abb and 105acb and the pin holes. In the third embodiment, the screw 15f and the fastened portions 15cba and 15dba similar to those in the first embodiment can also be used.

  The bar vertical position adjusting mechanism PS is provided with engaging recesses 105e and 105f on the front pillars 25Ba and 25Bb side in a plurality of stages along the front pillars 25Ba and 25Bb. The multi-step engaging recesses 105e and 105f are formed in latch members 105g and 105h fixed along the front pillars 25Ba and 25Bb. The bar vertical position adjusting mechanism PS is configured by the plurality of meshing recesses 105e and 105f and the meshing jig 105b.

  The attachment procedure of the fixing jig 105 is performed as shown in FIGS.

  FIG. 28 shows the front pillars 25Ba and 25Bb before the fixing jig is attached, and the support jig 105a is aligned with the front pillars 25Ba and 25Bb as shown in FIG. In this aligned state, the contact blocks 105ad and 105ae are brought into contact with the outer surfaces of the front pillars 25Ba and 25Bb from the front.

  Next, as shown in FIG. 30, the fitting portions 105bb and 105bc of the engagement jig 105b are opposed to the tips of the outer pipes 105ab and 105ac, and the fitting portions 105bb and 105bc are connected to the outer pipes 105ab and 105ac as shown in FIG. While being fitted, it is slid to the front pillars 25Ba and 25Bb.

  With this slide, as shown in FIG. 32, the meshing portion 105ba is meshed with the meshing recesses 105e and 105f on the front pillars 25Ba and 25Bb side.

  When the pins 105bbb and 105bcb are inserted into the pin holes 105bba and 105bca of the fitting portions 105bb and 105bc in this meshing state, the pins 105bbb and 105bcb are also inserted into the pin holes 105ab and 105aca of the outer pipes 105ab and 105ac, and the outer pipe 105ab , 105ac is positioned with respect to the fitting portions 105bb and 105bc.

  By this positioning, the fixing jig 105 can be attached and fixed to the front pillars 25Ba and 25Bb.

  Next, as shown in FIG. 34, the inner pipes 105c and 105d on the stomach bar 15B side are inserted into the outer pipes 105ab and 105ac on the fixing jig 105 side. The expansion and contraction positions of the inner pipes 105c and 105d with respect to the outer pipes 105ab and 105ac are adjusted, and the pins are inserted into the pin holes 105aba and 105aca according to the expansion and contraction positions. Decide.

  By this positioning, the stomach support portion 15a of the stomach bar 15B can be disposed at an appropriate position with respect to the person being assisted.

  When changing the vertical position of the stomach bar 15B, the pins 105bbb and 105bcb are pulled out from the fitting portions 105bb and 105bc shown in FIG. If it is from the state of (B), the position of the stomach bar 15B is lowered.

  With this position change, the engagement jig 105b is re-engaged with the lower appropriate engagement recesses 105e and 105f, and the pins 105bbb and 105bcb are inserted into the pin holes 105bba and 105bca of the engagement portions 105bb and 105bc, and fixed again.

  By this fixing, the position of the stomach bar 15B can be adjusted to a vertical position suitable for the assistant, such as lowering the position of the stomach bar 15B.

  Therefore, in this embodiment, by using the fixing jig 105, the stomach bar 15B can be easily attached and the vertical position can be changed.

  In addition, the second embodiment can achieve the same effects as those of the first embodiment.

1 Standing support walking aid (movement aid)
3 traveling base 11 front support part 13 seat part 15, 15A, 15b stomach bar 17a, 17b wheel (front wheel)
19a, 19b Wheel (rear wheel)
25a, 25Ba, 25b, 25Bb Front pillar 35 Seat surface support frame 61 Lifting mechanism 77 Seat surface base 79 Seat surface plate 81 Seat surface movable mechanism AA Bar angle adjusting mechanism EX Bar telescopic mechanism PS Bar vertical position adjusting mechanism

Claims (6)

A travel base capable of traveling by wheels,
A movement auxiliary device provided with a front support portion provided on the front side of the traveling base and supporting the arm of the person being assisted;
Provided with an abdomen abutting part arranged to protrude rearward in the traveling direction between the upper and lower sides of the traveling base and the front support part and capable of hitting the abdomen of the person being assisted;
A mobility aid characterized by that. The movement auxiliary device according to claim 1,
A front pillar that stands up from the traveling base and has the front support portion provided at the top thereof,
The abdomen contact portion is provided in the upper and lower middle part of the front pillar,
A mobility aid characterized by that. The movement auxiliary device according to claim 1 or 2,
The abdomen abutting part is provided with a bar expansion and contraction mechanism for changing the protruding length to the rear,
A mobility aid characterized by that. The movement auxiliary device according to any one of claims 1 to 3,
The abdomen contact portion includes a bar angle adjustment mechanism that changes the vertical attachment angle.
A mobility aid characterized by that. The movement auxiliary device according to any one of claims 1 to 4,
The abdomen contact portion includes a bar vertical position adjustment mechanism that changes the vertical mounting position.
A mobility aid characterized by that. The movement auxiliary device according to any one of claims 1 to 5,
A seat support frame provided on the traveling base;
The seating surface is disposed on the seating surface support frame and has a seating surface for a person to be seated. The seating surface is moved between a seating position in the instrument width direction and a transfer position projecting outward from the seating position in the instrument width direction. With the seating surface part made possible,
A mobility aid characterized by that.

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