TWM573630U - wheelchair - Google Patents

Abstract

a wheelchair comprising a chair frame, two handrail bars, two handrails, a plurality of wheels and at least one pedal mechanism; two handrail bars are connected in a telescopic manner to the frame frame, respectively, on two sides of the frame frame, two The armrests are respectively connected to the two handrails, the armrests are movable back and forth in a horizontal direction with respect to the handrails, and the plurality of wheels are connected to the bottom of the chair frame, and at least one pedal mechanism includes a connecting rod and a pedal, the connecting rod pivot Connected to the front side of the seat frame, and the foot pedal is pivotally connected to the connecting rod, so that the connecting rod can drive the foot pedal to pivot with the pivoting end, and the foot pedal can also pivot relative to the connecting rod; The design allows the wheelchair to be adjusted to the user's body shape and needs.

Description

wheelchair

This creative department is related to the action assistant; especially a wheelchair.

Medical technology is changing with each passing day, making modern people more and more long-lived, but longevity still inevitably aging with the function of various organs of the body. Aging makes the body's calcium easily lost, muscle deficiency or limbs degeneration. At this time, daily life often relies on wheelchairs to facilitate action. In addition, wheelchairs are one of the best mobility aids for people with reduced mobility, either because of accidents or because of illnesses.

The pedals of the conventional wheelchair are arranged in such a way that when the user wants to get up from the posture in the wheelchair, the foot must be stretched forward and stepped over the pedal to stand on the ground, so that the user who is petite is likely to face The troubles of crossing, or the less powerful limbs of the lower limbs, because the feet are stretched forward and too far from the torso, the center of gravity is unstable, and it is not easy to get up. Therefore, the improvement of the pedals is a subject worthy of attention.

In addition, the secondary problem is the adjustment of the handrail. The handrail of the conventional wheelchair can only be adjusted in the vertical direction. Although the height of the adjusted armrest is increased, the length in the horizontal direction is not correspondingly increased or decreased. However, it is easy for the user to have a poor sitting posture, physical discomfort, or a remote controller that cannot be smoothly controlled on the armrest due to the improper length of the armrest when the arm is placed. Therefore, the conventional wheelchair cannot be adapted to various body types. And there are areas for improvement.

In view of this, the main purpose of this creation is to provide a wheelchair for the user to get up from the wheelchair.

In addition, the secondary purpose of the present invention is to provide a wheelchair that allows the user to adjust the position of the armrest in the horizontal direction and the vertical direction relative to the human body according to the individual's body shape and ride comfort.

In order to achieve the above main purpose, a wheelchair provided by the present invention includes a seat frame, two handrails, two handrails, a plurality of wheels and at least one pedal mechanism; the two handrails are disposed on both sides of the frame, and are respectively connected One of the two armrests; a plurality of wheels connected to the bottom of the chair frame; at least one pedal mechanism including a connecting rod and a foot pedal, one end of the connecting rod pivoted to the chair The front side of the frame is pivotally connected to the other end.

In order to achieve the above secondary objective, further, the two handrails of the wheelchair include a first rod and a second rod, the first rod is connected to the chair frame, the second rod is disposed on the first rod and the second rod is disposed on the first rod and the second rod The rod is movable relative to the first rod such that one end of the second rod is displaced in the horizontal and vertical directions.

The effect of the creation is that the foot pedal is pivoted on the front side of the seat frame through the connecting rod, so that when the user wants to get up from the state of the seat frame, the foot pedal can be pushed toward the seat frame by the feet (for example, the heel). The pivoting allows the feet to be stepped on the ground closer to the torso, so that the standing position of the feet is close to the center of gravity of the user, so that the user can get up from the wheelchair. In addition, by the design of the handrail bar, the handrail connecting the handrail can adjust the height and the horizontal distance, so that the handrail can be adjusted horizontally and vertically according to the needs of different users.

In order to explain the present invention more clearly, the preferred embodiment will be described in detail with reference to the drawings. Referring to FIGS. 1 through 6, a wheelchair 100 according to a preferred embodiment of the present invention includes a chair frame 10, two handrail bars 20, two armrests 30, a plurality of wheels 40, and at least one pedal mechanism 50.

The chair frame 10 is used for the user to ride; the two handrail bars 20 are connected to the chair frame 10 and are respectively located at two sides of the chair frame 10; the two handrails 30 are respectively connected to the two handrail bars 20; the wheels 40 are connected The pedal mechanism 50 is pivotally connected to the front side of the chair frame 10, and the pedal mechanism 50 is pivotable between a first position P1 and a second position P2, and is in the first position P1. The pedal mechanism 50 is relatively far from the seat frame 10, and the pedal mechanism 50 is relatively close to the seat frame 10 at the second position P2.

The construction and connection relationship of the above components will be described in detail below:

In the present embodiment, the chair frame 10 includes a seat 11 and a seat back 12 for the user to ride and provide support for the user's buttocks; the seat back 12 is located behind the seat frame 10. The side is for the user to lean back, and the top of the seat back 12 is provided with two grips 13. The two grips 13 are disposed on the two sides of the seat back 12 in a contour and parallel manner, and the two grips 13 are used for holding Hold the wheelchair 100. Further, in the embodiment, the chair frame 10 further includes a main frame 14 and at least one support base 15 . The main frame 14 is provided with the seat 11 and the seat back 12 . The support base 15 is connected through a connecting piece. 16 is connected to the main frame 14, and the support base 15 is pivotally connected to the connecting member 16, so that the support base 15 can be pivoted laterally relative to the seat frame 10. The support base 15 is provided with a plurality of first positioning portions 15a. In this embodiment, the number of the at least one support base 15 and the connecting member 16 is two; the main frame 14 is disposed under the seat 11 and connected to both sides of the seat 11 , and the main frame 14 is away from the seat back 12 . One end is a front side, and two connecting ends 14a are respectively connected to the two connecting members 16, and the two connecting members 16 are also respectively located at two sides of the seat 11.

In the present embodiment, the structure of the two handrail bars 20 is substantially the same, so the structure of the handrail bar 20 will be described below.

The grab bar 20 has a first rod 22 and a second rod 24. One end of the first rod 22 is disposed on the seat frame 10, and one end is disposed adjacent to the intersection of the seat back 12 and the seat 11 by The pivotal connection allows the first rod 22 to pivot within an angle between the seat back 12 and the seat 11. The second rod 24 is mounted on the first rod 22 so as to be obliquely displaceable along the extending direction of the first rod 22, and the second rod 24 is at a third position relative to the first rod 22 Moving between P3 and a fourth position P4, when the second rod 24 is moved from the third position P3 to the fourth position P4, or when moving from the fourth position P4 to the third position P3, the second rod 24 is A displacement is generated in the horizontal direction H and the vertical direction V, represented by ΔH and ΔV (see FIG. 2), and one end portion 24a of the second rod 24 is used to connect the armrest 30. Further, in this embodiment, the first rod 22 has an accommodating space therein, and one end thereof has an opening communicating with the accommodating space; one end of the second rod 24 extends from the opening It is accommodated in the space and combined with the first rod 22. Through the above design, the grab bar 20 is pivotally disposed on the seat back 12 in a telescopic manner.

The two armrests 30 are respectively connected to the two handrails 20 for the user to place the arms. In the present embodiment, the two armrests 30 are respectively mounted on the second rod 24 so as to be movable in the horizontal direction relative to the two grab bars 20, and are connected to the end portion 24a of the second rod 24.

As shown in FIG. 3 to FIG. 5, each of the armrests 30 has a sliding rail 32. The sliding rail 32 includes a plurality of fixing holes 32a and a plurality of sliding slots 32b. The diameter of each fixing hole 32a is larger than The groove width of each chute 32b.

The end portion 24a of the second rod 24 has a rod body 34, a first accommodating groove 24b and a second accommodating groove 24c. The groove bottom of the first accommodating groove 24b and the groove of the second accommodating groove 24c. The bottom portion is connected to each other; the rod body 34 has a fixing portion 34a, a control portion 34b and a moving portion 34c. The fixing portion 34a and the control portion 34b are respectively located at two ends of the rod body 34, and the middle portion of the rod body 34 is a moving portion 34c. Further, the fixing portion 34a is located in the first accommodating groove 24b, and the control portion 34b is located in the second accommodating groove 24c.

A portion of the rod body 34 is disposed in the sliding rail 32. The outer contour of the fixing portion 34a and the control portion 34b is larger than the outer contour of the moving portion 34c, and is larger than the groove diameter of the sliding groove 32b, but the fixing portion 34a and the control portion. The outer contour of the 34b is slightly smaller than the inner contour of the fixing hole 32a, so that the rod body 34 can be fixed to the fixing hole 32a through the fixing portion 34a; the diameter of the moving portion 34c is slightly smaller than the groove diameter of the sliding groove 32b, so that the rod body 34 can pass through. The moving portion 34c moves along the slide rail 32. One side of the fixing portion 34a facing the moving portion 34c is provided with a spring 36, and the spring 36 is sleeved on the rod body 34. One end of the spring abuts one side of the control portion 34b, and the other end Abutting the bottom of the groove of the second accommodating groove 24c.

When the armrest 30 is in a fixed state, a part of the fixing portion 34a of the rod body 34 abuts against the fixing hole 32a, and a part is located in the first receiving groove 24b, and the spring 36 is in a normal state (for example, an uncompressed or stretched state); When the user wants to adjust the armrest 30 so that the armrest 30 can move horizontally relative to the end portion 24a of the second rod 24, the user must first push the control portion 34b of the rod 34, and the control portion 34b presses the spring 36 to bring the rod 34 together. The moving portion 34c is moved to the fixing hole 32a, and the fixing portion 34a is all located in the first receiving groove 24b. At this time, the moving portion 34c can move along the sliding rail 32 through the fixing hole 32a and the sliding groove 32b, and from the fixing The hole 32a is moved to the chute 32b or the next fixing hole 32a, thereby driving the armrest 30 to move back and forth with respect to the end portion 24a of the second rod 24. When adjusting to the appropriate position, the user only needs to adjust the control portion 34b to push the control portion 34b when the spring 36 returns to the normal state from the compressed state, and the fixing portion 34a is moved back to the corresponding fixing hole 32a, and the fixing hole 32a. The phase card is engaged with the fixing hole 32a to fix the horizontal position of the armrest 30.

In other applications, the manner in which the armrest 30 can be moved in the horizontal direction relative to the armrest bar 20 is not limited to the above, and an axle or a sliding equivalent element can be provided to enable the armrest 30 to move back and forth in the horizontal direction M2. .

Through the above-mentioned handrail bar 20, the design of the oblique displacement M1 and the handrail 30 can be moved back and forth in the horizontal direction M2, so that the user can adjust the first according to the personal sitting habit or the length of the arm, the distance between the shoulder and the elbow. The relative position of the rod 22 and the second rod 24 is set to the height and the extension distance of the armrest 30 suitable for the individual; by adjusting the horizontal position of the armrest 30, the distance of the armrest suitable for the individual is set, for example, the user with short stature can avoid the armrest 30 is too high or too far, causing discomfort such as shrugging or inability to completely relax when the arm is placed on the armrest 30. In addition, in the embodiment, a remote controller 17 is disposed at a front end of the armrest 30, and the remote controller 17 is configured to control the operation of the wheelchair 100, such as moving or lifting, and the armrest 30 and the grab bar are transmitted through the armrest 30. The design of 20 allows the user to easily adjust the position and distance of the grab bar 20, the armrest 30, and the remote control 17 to facilitate the user to ride the wheelchair 100 and operate the remote controller 17 in a comfortable state.

In the present embodiment, the wheels 40 include two main wheels 42 and two driven wheels 44. The two main wheels 42 are disposed under the seat frame 10 and adjacent to the seat back 12, and are respectively located at two sides of the seat frame 10 and The main frame 14 is connected to the main frame 14; the two driven wheels 44 are pivotally connected to a connecting member 16 through a wheel rod 46, respectively.

In addition, in an embodiment, the connecting member 16 may also be one. In this case, the two connecting ends 14a on the front side of the main frame 14 are connected by the connecting member 16, and only one driven wheel 44 may be disposed at this time. And a support base 15, in addition, the main frame 14 and the connecting member 16 can also adopt an integrally formed design, and is not limited to the above description.

In this embodiment, the number of the at least one pedal mechanism 50 is exemplified by two pedal mechanisms 50. Each of the pedal mechanisms 50 includes a connecting rod 52 and a foot pedal 54. One end of the connecting rod 52 is pivoted at one end. The front side of the chair frame 10 is pivoted, for example, on the support base 15, and the other end is connected with the foot pedal 54. As shown in FIG. 6 and FIG. 7, the connecting rod 52 can be in a first position P1 and a first position. The two positions P2 are pivoted, and in the first position P1, the foot pedal is relatively far from the seat frame, and in the second position P2, the foot pedal is relatively close to the seat frame. In addition, the connecting rod 52 has a plurality of second positioning portions 52a for connecting the first positioning portions 15a corresponding to the support base 15. Wherein, the connecting rod 52 and the supporting base 15 are connected in two ways:

The first type of connection is such that one of the second positioning portions 52a of the connecting rod 52 and the first positioning portion 15a of the support base 15 are inserted through the pin.

In the second connection mode, the connecting rod 52 can be coupled to the two or more first positioning portions 15a of the support base 15 through two or more second positioning portions 52a, and the coupling manner can be inserted through the pins or screwed in.

Through the above two connection modes, the user can freely select two use states, and the first use state is a relative first connection mode, in which the connecting rod 52 can pivot relative to the support base 15; In the use state, the connecting rod is fixed to the support base 15 and cannot be pivoted.

Referring to FIG. 8, the footrest 54 has a connecting portion 54a and a stepping portion 54b. The footrest 54 is connected to one of the connecting rods 52 by a connecting portion 54a, and the step portion 54b is stepped on the user's foot. Stepping on, further, in the embodiment, the connecting portion 54a of the footboard 54 is pivotally connected to the other end of the connecting rod 52, so that the portion where the footboard 54 can be pivotally connected to the connecting rod 52 is centered on When the position P5 and the storage position P6 are pivoted between the use position P5, the step portion 54b is relatively far from the connecting rod 52, and when the storage position P6 is reached, the step portion 54b is relatively close to the connecting rod 52.

In addition, in other applications, the number of at least one pedal mechanism 50 may be one, and the pedal mechanism includes a connecting rod or two connecting rods and a pedal (not shown), and the number of connecting rods is Relative to the number of the support bases, if the connecting rods are two, the connecting rods are respectively disposed at two ends of the pedals, and if the connecting rods are one, the connecting rods are disposed in the middle of the pedals or are set on the pedals. The plate is adjacent to a side wall of the chair frame.

With the above design, when the user wants to get up from the riding state, there are various ways to prevent the foot pedal 54 from obstructing the pace when getting up, so that the step of stepping on the ground when the body is lifted is not too large, and the center of gravity is too far away from the body. Not easy to apply, for example:

The two support bases 15 are pivoted laterally, so that the connected two-foot pedals 54 are also located on both sides of the seat frame 10, and a space is provided in the middle for the user to step on the ground;

The connecting rod 52 pivots relative to the support base 15, and the foot pedal 54 is swung with the connecting rod 52, so that the user can push the foot pedal 54 to pivot the foot pedal 54 toward the seat frame 10, which is beneficial to The user stepped on the ground;

When the tread portion 54b is pivoted at the storage position P6, the distance between the two footrests 54 is widened, and the user can step on the ground with the pitch, which is advantageous for the user to step on and then get up.

The above is only a preferred embodiment of the present invention, and equivalent changes to the scope of the present application and the scope of the patent application are intended to be included in the scope of the present patent.

[This creation]

100‧‧‧ Wheelchair

10‧‧‧ Chair frame

11‧‧‧ seat

12‧‧‧Back of the chair

13‧‧‧ grip

14‧‧‧Main frame

14a‧‧‧Connecting end

15‧‧‧Support

15a‧‧‧First Positioning Department

16‧‧‧Connecting pieces

17‧‧‧Remote control

20‧‧‧Handrail

22‧‧‧first shot

24‧‧‧second shot

24a‧‧‧End

24b‧‧‧First accommodating slot

24c‧‧‧Second accommodating slot

30‧‧‧Handrails

32‧‧‧Slide rails

32a‧‧‧Fixed holes

32b‧‧‧Chute

34‧‧‧ rod body

34a‧‧‧Fixed Department

34b‧‧‧Control Department

34c‧‧‧Mobile Department

36‧‧‧ Spring

40‧‧‧ wheels

42‧‧‧ main round

44‧‧‧ driven wheel

46‧‧‧ Wheels

50‧‧‧ pedal mechanism

52‧‧‧ Connecting rod

52a‧‧‧Second Positioning Department

54‧‧‧ pedals

54a‧‧‧Connecting Department

54b‧‧‧Treading

P1‧‧‧ first position

P2‧‧‧ second position

P3‧‧‧ third position

P4‧‧‧ fourth position

P5‧‧‧Location

P6‧‧‧ Storage location

H‧‧‧ horizontal direction

V‧‧‧Vertical direction

M1‧‧‧ oblique displacement

Moving around M2‧‧

1 is a perspective view of a wheelchair in accordance with a preferred embodiment of the present invention. 2 is a schematic view showing the telescopic movement of the handrail of the wheelchair of the above preferred embodiment. Figure 3 is a cross-sectional view of the joint 3-3 of the armrest and the grab bar of Figure 1. Figure 4 is a cross-sectional view of the joint 3-3 of the armrest and the handrail of Figure 1. Fig. 5 is a schematic view showing the armrest of the wheelchair of the above preferred embodiment moving in the horizontal direction. Figure 6 is a schematic illustration of the user moving the pedal mechanism. Figure 7 is a schematic view of the movement of the pedal mechanism of Figure 6. Figure 8 is a schematic view of the folding of the foot pedal.

Claims (9)

a wheelchair comprising: a chair frame; two handrail bars connected to the chair frame and respectively located on two sides of the frame frame; two handrails respectively connected to the two handrail bars; a plurality of wheels connected to the bottom of the frame frame; At least one pedal mechanism includes a connecting rod and a foot pedal, one end of the connecting rod is pivoted on the front side of the seat frame, and the other end is connected with the foot pedal, the connecting rod can be in a first position and a first The two positions are pivoted, and in the first position, the foot pedal is relatively far from the seat frame, and in the second position, the foot pedal is relatively close to the seat frame. The wheelchair of claim 1, wherein the two grab bars each have a first rod and a second rod, the first rod is connected to the chair frame; the second rod is disposed on the first rod, and the second rod is One end of the two rods is coupled to one of the two armrests, and the second rod is movable relative to the first rod between a third position and a fourth position, wherein the second rod is moved by the third position At the fourth position, the end portion is displaced in the horizontal direction and the vertical direction. The wheelchair of claim 2, wherein the second rod is mounted to the first rod in a manner that is obliquely displaceable along an extension direction of the first rod. The wheelchair of claim 2, wherein the end of the second rod is provided with a rod body, the armrest includes a slide rail, the rod body is disposed on the slide rail, and the end portion of the second rod is connected The armrest. The wheelchair of claim 1, 2 or 3, wherein the two armrests are respectively mounted on the two handrails in such a manner as to be movable in a horizontal direction relative to the two handrails. The wheelchair of claim 1, wherein the seat frame includes a main frame and at least one support base, the at least one support base is coupled to the front side of the main frame, and the at least one support seat And a plurality of first positioning portions; the connecting rod of the at least one pedal mechanism is pivotally disposed on one of the first positioning portions and pivotable relative to the at least one supporting seat. The wheelchair of claim 6, wherein the connecting rod has a plurality of second positioning portions; in a second use state, at least two of the second positioning portions are combined with at least two of the first positioning portions to limit The connecting rod cannot pivot relative to the at least one support. The wheelchair of claim 4, wherein the number of the at least one pedal mechanism is two, the two pedals respectively have a connecting portion and a stepping portion, and the two pedals respectively use the connecting portion and the two connecting rods Pivoting, such that each of the pedals can be pivotally connected to each of the connecting rods as a pivot point between a use position and a storage position. In the use position, the stepped portion is relatively far from the connecting rod. In the storage position, the tread portion is relatively close to the connecting rod. The wheelchair of claim 7, wherein the number of the at least one support base is two, and the two support seats are pivotally connected to the front end of the main frame and can be pivoted laterally relative to the seat frame.