CN218652271U

CN218652271U - Shifting machine with turnable handrails

Info

Publication number: CN218652271U
Application number: CN202221923673.0U
Authority: CN
Inventors: 徐力军; 王艳; 徐屾
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2023-03-21
Anticipated expiration: 2032-07-25

Abstract

The utility model provides a shifter with a turnover handrail, which relates to the technical field of shifters and comprises a shifter body, a handrail lifting mechanism and a handrail rotating mechanism, wherein the bottom of the handrail lifting mechanism is connected with the shifter body, and the top of the handrail lifting mechanism is connected with the handrail rotating mechanism and is used for driving the handrail rotating mechanism to swing up and down; the handrail rotating mechanism is connected with the beam between the two handrails, and the handrail rotating mechanism is used for rotating the two handrails and the beam. The utility model discloses a mutually supporting of handrail, lifting frame assembly, pocket area and slewing mechanism assembly realizes handrail upset and lifting action, and then realizes accomplishing the conversion between demand person prone position and the position of sitting and like the process that takes off, wears trousers that the lavatory in-process must go on under the single supplementary condition.

Description

Shifting machine with turnable handrails

Technical Field

The utility model relates to a machine of shifting technical field especially relates to a machine of shifting with handrail can overturn.

Background

The shifter is a professional mobile auxiliary device used for nursing disabled old people, can greatly reduce the working strength and safety risk of nursing staff nurse in the process of nursing disabled and semi-disabled old people, and simultaneously improves the nursing quality and efficiency.

At present, the current machine of shifting on the market is annotated heavy regulation seat height and handrail height, and the handrail is fixed in about on the seat, can't rotate by oneself and adjust, like the utility model patent of the publication number CN213431254U of authorizing, discloses a shifter is used in paralysed old man's nursing, including main body frame, braced frame and handrail frame, be convenient for drive through setting up the universal removal wheel the utility model discloses the nimble removal of main part has solved present shifter for paralysed old man's nursing can not convenient and fast's supplementary paralysed old man or disabled person and has carried out the stool and urine to and the folding that can not compact, lead to carrying and the inconvenient problem of transportation. It can be seen that the patent realizes the movement of paralyzed old people by arranging the moving mechanism. Then like the utility model patent of the publication number CN213076333U, disclose a aversion machine, including the base of taking the landing leg, install in the lift stand of base top and erect the aversion complementary unit who is used for assisting the aversion on the lift stand, be equipped with the aversion auxiliary frame on the aversion complementary unit, the aversion auxiliary frame has the back and distributes in the bar of both sides, the bar sets up along the horizontal direction, is equipped with on the bar along length direction arranges the length adjustment device who is used for adjusting bar extension length. The shifting machine provided by the utility model has simple structure and low manufacturing cost; the use is convenient, and the maintenance is easy; good adjustability and strong adaptability.

In the prior art, although the process of moving a demander from a bed to a toilet bowl in a toilet can be realized in the using process, the process of taking off and putting on trousers, which is necessary in the toilet process, of the demander cannot be realized after the demander moves to the toilet bowl, because the demander needs to be held up to leave a seat or the toilet bowl when the demander goes to the toilet, the process is difficult to be independently completed by a nurse and a nurse because paralyzed old people are in an powerless state; meanwhile, the current shifting machine actually needs the demander to sit stably by oneself in the use process, only can satisfy the use of half incapability crowd, if the demander is the full incapability crowd or when the demander is heavier in weight, how to change the demander from the prone position to the sitting position, then embrace the demander to the shifting machine, in practice, it is difficult to realize by one person, and the current shifting machine does not have the realization of this part of function, therefore, it is necessary to provide a shifting machine, lifting and overturning actions of the handrail while being capable of moving the incapability old man, and then realize the conversion between the prone position and the sitting position of the demander under the condition of single assistance and the process of taking off and wearing trousers which is necessary to be carried out in the toilet process.

SUMMERY OF THE UTILITY MODEL

According to the technical problem that a plurality of persons need to assist when a demander moves to the shifting machine, the shifting machine with the liftable and rotatable armrests is provided. The utility model discloses mainly utilize mutually supporting of handrail, lifting frame assembly, bandage and slewing mechanism assembly to realize handrail upset and lifting action to accomplish the conversion between demand person prone position and the position of sitting and like the necessary process of taking off, wearing trousers that goes on of lavatory in-process under the single auxiliary condition.

The utility model discloses a technical means as follows:

a shifter with a turnable handrail comprises a shifter body, a handrail lifting mechanism and a handrail rotating mechanism; the bottom of the handrail lifting mechanism is connected with the shifting machine body, and the top of the handrail lifting mechanism is connected with the handrail rotating mechanism and used for driving the handrail rotating mechanism to swing up and down; the handrail rotating mechanism is connected with the beam between the two handrails and is used for rotating the two handrails and the beam; the armrests are connected with binding bands matched with the armrests.

Preferably, the handrail lifting mechanism comprises a main upright post assembly, a roller bearing assembly, a lifting frame assembly and a connecting plate; the main upright post assembly is used for driving the roller bearing assembly to lift; the roller bearing assembly is connected with the top of the main upright post assembly and is used for bearing the lifting frame assembly; the handrail rotating mechanism is connected with one end of the lifting frame assembly; the connecting plate is arc-shaped, the upper end of the connecting plate is hinged with the other end of the lifting frame assembly, and the lower end of the connecting plate is fixedly connected with a fixing part on the outer side of the main upright post assembly; after the main upright post assembly lifts the roller bearing assembly, the lifting frame assembly swings up and down around the hinged position of the lifting frame assembly and the connecting plate.

Preferably, the main upright post assembly comprises a shell, a lifting unit arranged in the shell, an ejector rod and a fixing part arranged outside the ejector rod, wherein the fixing part is a steel pipe, and the steel pipe is fixedly connected with the top of the shell; the bottom of the shell is connected with the shifter body; the bottom end of the ejector rod is connected with the output end of the lifting unit, and the top end of the ejector rod is fixedly connected with the roller bearing assembly.

Preferably, the lifting frame assembly comprises a lifting force arm, the middle part of the lifting force arm is arranged on the roller bearing assembly, two connecting pieces are symmetrically fixed on two sides of one end of the lifting force arm, and the lower ends of the two connecting pieces are hinged with the upper ends of the connecting pieces through cylindrical nut pins.

Preferably, the roller bearing assembly comprises a bearing support, the bearing support is provided with a cylindrical nut, two roller bearings are mounted on the cylindrical nut, a spacer sleeve is arranged between the two roller bearings, a bottom bolt is arranged at the bottom of the bearing support, and the bottom bolt is in threaded connection with an ejector rod in the main upright post assembly.

Preferably, the handrail rotating mechanism comprises a semicircular plate, the semicircular plate is fixedly connected with the handrail lifting mechanism, the middle of a cross beam between the two handrails is rotatably connected with the semicircular plate, a plurality of positioning holes are formed in the semicircular plate, and spring limiting pull pins matched with the positioning holes are fixed at the bottom of the cross beam.

Preferably, a height adjusting mechanism for adjusting the height of the ejector rod is arranged between the ejector rod and the lifting unit.

Preferably, the lifting unit is a hydraulic jack.

Preferably, the armrests are hinged to the cross-member.

Preferably, the strap is a pocket strap.

In the use state: lay the pocket area at the demander at first, with the seat assembly on the aversion quick-witted body to aversion machine one side, will shift the machine and move the universal wheel of the dead displacement machine bottom of lock before the bed, will be close to the handrail upset 270 of demander head one side, extract the spacing arm-tie of spring, make another handrail rotate the top position, the spacing arm-tie of spring inserts in the locating hole of the horizontal position of semicircle board this moment, adjustment pocket area length hangs the pocket area behind suitable and is located the handrail of top position. The handrail rotating mechanism is rotated to the horizontal position, the spring limiting pull pin is inserted into the limiting hole, the tightening pocket belt fixes the demander on the handrail, and the safety belt is taken up by the pocket belt at the moment. If the height of the demander is high and the sitting posture of the demander lifted by the armrests is not correct, the armrest lifting mechanism can be utilized to supplement the stroke of the armrests.

When handrail lifting mechanism adjusts: when the hydraulic jack works, the hollow ejector rod rises to lift the roller bearing assembly, so that the lifting arm of force and one end of the handrail are tilted, upward swing is realized, the hollow ejector rod can slide up and down in a shaft sleeve in the main upright post assembly for 2.5 cm of travel, when the hollow ejector rod is at the lowest position, the ground clearance of the handrail lifting end is 70 cm, and when the hollow ejector rod is at the highest position, the ground clearance of the handrail lifting end is 83 cm.

The utility model has the advantages of it is following:

the utility model discloses a mutually supporting of handrail, lifting frame assembly, pocket area and slewing mechanism assembly realizes handrail upset and lifting action, and then realizes accomplishing the conversion between demand person prone position and the position of sitting and like the process that takes off, wears trousers that the lavatory in-process must go on under the single supplementary condition.

Based on the reason, the utility model discloses can extensively promote in technical field such as aversion machine.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural view of a shifting machine with a turnable handrail in an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a main column assembly in the embodiment of the present invention.

Fig. 3 is a schematic view of a roller bearing assembly according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a lifting frame assembly according to an embodiment of the present invention.

Fig. 5 is a schematic view of the overall shape structure of the armrest and the connecting member thereof according to the embodiment of the present invention.

Fig. 6 is a diagram illustrating the effect of lifting the armrest according to the embodiment of the present invention.

Fig. 7 is a schematic view illustrating the rotation of the armrest according to the embodiment of the present invention.

Fig. 8 is a schematic view of a handrail with a holding rod according to an embodiment of the present invention.

In the figure: 1. a shifting machine body; 2. a handrail; 3. a cross beam; 4. a main column assembly; 5. a roller bearing assembly; 6. a lifting frame assembly; 7. a connecting plate; 8. positioning the clamping plate; 9. a hinge; 10. a semicircular plate; 11. a connecting member; 12. a spring limit pull pin; 13. a sleeve; 14. a pocket belt; 4.1, a hydraulic cylinder shell; 4.2, a hollow ejector rod; 4.3, seamless steel pipes; 4.4, a hydraulic jack; 4.5, a hydraulic cylinder pedal; 4.6, controlling a switch by a hydraulic cylinder; 4.7, shaft sleeve; 4.8, fastening screws; 4.9, oil sealing; 4.10, adjusting a screw rod; 5.1, bearing support; 5.2, cylindrical nuts; 5.3, roller bearings; 5.4, spacer bushes; 5.5, bottom bolt; 6.1, lifting a force arm; 6.2, a shaft; 6.3, pressure plate; 6.4, connecting sheets; 6.5, cylindrical nut pin.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-5, the utility model provides a shifter with a turnable handrail, which comprises a shifter body 1, a handrail lifting mechanism and a handrail rotating mechanism; the bottom of the handrail lifting mechanism is connected with the shifting machine body 1, and the top of the handrail lifting mechanism is connected with the handrail rotating mechanism and used for driving the handrail rotating mechanism to swing up and down; the handrail rotating mechanism is connected with the cross beam 3 between the two handrails 2, the handrail rotating mechanism is used for rotating the two handrails 2 and the cross beam 3, the handrails 2 are connected with binding bands matched with the handrail 2, and the binding bands adopt pocket bands 14 in the specific embodiment. The handrail 2 may have a downwardly disposed concave shape (see fig. 1), or may have an upwardly disposed handrail shape (see fig. 8).

The handrail lifting mechanism comprises a main upright post assembly 4, a roller bearing assembly 5, a lifting frame assembly 6 and a connecting plate 7; the main upright post assembly 4 is used for driving the roller bearing assembly 5 to lift; the roller bearing assembly 5 is connected with the top of the main upright post assembly 4 and is used for bearing the lifting frame assembly 6; the handrail rotating mechanism is connected with one end of the lifting frame assembly 6; the connecting plate 7 is arc-shaped, the upper end of the connecting plate is hinged with the other end of the lifting frame assembly 6, and the lower end of the connecting plate is fixedly connected with a fixing part on the outer side of the main upright post assembly 4; after the main upright post assembly 4 lifts the roller bearing assembly 5, the lifting frame assembly 6 swings up and down around the hinged part of the roller bearing assembly and the connecting plate 7.

The main upright post assembly 4 comprises a shell, a lifting unit arranged in the shell, an ejector rod and a fixing part arranged outside the ejector rod, wherein the fixing part is a steel pipe, and the steel pipe is fixedly connected with the top of the shell; the bottom of the shell is connected with the shifting machine body 1; in the embodiment, the lifting unit is a hydraulic jack 4.4, the shell is a hydraulic cylinder shell 4.1, the ejector rod is a hollow ejector rod 4.2, and the steel pipe is a seamless steel pipe 4.3; the hydraulic cylinder shell 4.1 is provided with a hydraulic cylinder pedal 4.5 and a hydraulic cylinder control switch 4.6 which drive the hydraulic jack 4.4 to work. Two sides of the hydraulic cylinder shell 4.1 are respectively provided with a hydraulic cylinder shell 4.1 positioning clamping plate 8 arranged on the shifting machine body 1, the front side of the hydraulic cylinder shell 4.1 is hinged with the shifting machine body 1 through a hinge 9, and the front side of the hydraulic cylinder shell 4.1 is provided with a ball head steel ball quick-release pin. Shaft sleeves 4.7 are respectively arranged in the upper end and the lower end of the seamless steel tube 4.3, the shaft sleeves 4.7 are fixed through fastening screws 4.8, an oil seal 4.9 is arranged at the upper end of the seamless steel tube 4.3, and a hollow ejector rod 4.2 is arranged in the seamless steel tube 4.3 and is in seamless sliding fit with the shaft sleeves 4.7; nuts are respectively fixed at the upper end and the lower end of the hollow ejector rod 4.2; the top end (output end) of the hydraulic jack 4.4 is provided with an adjusting screw rod 4.10, a nut at the lower end of the hollow ejector rod 4.2 is matched with the adjusting screw rod 4.10, and a nut at the upper end is connected with a bottom bolt of the roller bearing assembly 5.

The roller bearing assembly 5 comprises a bearing support 5.1, the bearing support 5.1 is provided with a cylindrical nut 5.2, two roller bearings 5.3 are mounted on the cylindrical nut 5.2, a spacer 5.4 is arranged between the two roller bearings 5.3, a bottom bolt 5.5 is arranged at the bottom of the bearing support 5.1, the bottom bolt 5.5 is in threaded connection with an upper end nut of a hollow ejector rod 4.2 in the main upright post assembly 4, and the joint of the hollow ejector rod 4.2 and the roller bearing assembly 5 and the joint of the hollow ejector rod and an adjusting screw rod 4.10 are screwed after being coated with 340 anaerobic adhesive. After the 340 anaerobic adhesive is dried, the roller bearing assembly 5, the hollow ejector rod 4.2 and the adjusting screw rod 4.10 can be fixed into a whole (the 340 anaerobic adhesive has an average disassembly moment of 15N/M and a destruction moment of 20N/M), when the roller bearing assembly 5 rotates forwards and backwards, the hollow ejector rod 4.2 drives the adjusting screw rod 4.10 to rotate in and out of an oil cylinder piston of the hydraulic jack 4.4, and the hollow ejector rod 4.2 can slide up and down in the shaft sleeve 4.7. The adjusting screw rod 4.10, the nut at the lower end, the hollow ejector rod 4.2 and the roller bearing assembly 5 form a height adjusting mechanism which can adjust the height of the hollow ejector rod 4.2. The height adjusting mechanism adjusts the initial position of the handrail according to different users, and only needs to adjust the height once aiming at one person.

The lifting frame assembly 6 comprises a lifting force arm 6.1, a semicircular plate 10 is welded at the front end of the lifting force arm 6.1, a shaft 6.2 is welded at the upper end of the semicircular plate 10, internal threads are arranged at the front end of the shaft 6.2, three positioning holes are formed in the horizontal position and the vertical position of the semicircular plate 10, the middle of the lifting force arm 6.1 is arranged on a roller bearing assembly 5, the lower part of the lifting force arm 6.1 is in contact with a roller bearing 5.3, and a pressure plate 6.3 with a pressure angle is welded at the contact position, the pressure plate 6.3 keeps the hollow ejector rod 4.2 to bear axial force only in the process of jacking the lifting force arm 6.1 during up-and-down movement, two connecting pieces 6.4 are welded at the tail end of the lifting force arm 6.1, and the two connecting pieces 6.4 are connected with two connecting plates 7 welded outside a seamless steel pipe 4.3 through cylindrical nut pins 6.5, so that the up-down reciprocating movement of the hollow ejector rod 4.2 is converted into circular arc movement of the lifting frame assembly 6 with the cylindrical nut pins 6.5 as the center.

The front end of the shaft 6.2 is connected with a handrail rotating mechanism, the handrail rotating mechanism comprises a connecting piece 11, the bottom of the connecting piece 11 is provided with a spring limiting pull pin 12, and the spring limiting pull pin 12 is in rotating fit with the front end of the shaft 6.2; the connecting piece 11 is fixedly connected with the cross beam 3 between the two armrests, and the sleeve 13 is fixedly connected with the connecting piece 11. After the shaft part is inserted into the sleeve 13, the spring limiting pull pin 12 is pulled out, the connecting part 11 is rotated, the spring limiting pull pin 12 enters a positioning hole of the semicircular plate 10 after the angle reaches 90 degrees, and the position of the connecting part 11 is limited.

In the use state: as shown in fig. 7, firstly, the pocket belt 14 is laid under the body of the user, the seat assembly on the shifting machine body 1 is transferred to one side of the shifting machine, the shifting machine is transferred to the universal wheels at the bottom of the shifting machine which is locked in front and at the back of the bed, the armrest 2 close to one side of the head of the user is overturned by 270 degrees, the spring limiting pull pin 12 is pulled out, another armrest 2 is transferred to the upper position, the spring limiting pull pin 12 is inserted into the positioning hole of the horizontal position of the semicircular plate 10 at the moment, the length of the pocket belt 14 is adjusted, and the pocket belt 14 is hung on the armrest 2 located at the upper position after the seat assembly is suitable. The handrail rotating mechanism is rotated to the horizontal position, the spring limiting pull pin 12 is inserted into the limiting hole, the pocket belt 14 is tensioned to fix the demander on the handrail 2, and the pocket belt 14 plays a role of a safety belt at the moment. If the height of the demander is high and the sitting posture of the demander lifted by the armrests is not correct, the armrest lifting mechanism can be utilized to supplement the stroke of the armrests.

As shown in fig. 6, when the armrest lift mechanism is adjusted: the hydraulic cylinder control switch 4.6 is stepped by feet to rotate to a limit point (a box body is provided with a mark) along the clockwise direction, the hydraulic cylinder pedal 4.5 is stepped by feet for a plurality of times (the hydraulic cylinder pedal 4.5 automatically returns under the action of a tension spring), when the output end of the hydraulic cylinder jack 4.4 extends out, the hollow ejector rod 4.2 is driven to ascend, the lifting frame assembly 6 is jacked up, the lifting frame assembly 6 is enabled to do circular motion with the cylindrical nut pin 12.4 as the center, and at the moment, the two handrails 2 move upwards. The stroke of the hydraulic jack is 8.5 cm, the length of the handrail 2 is 50 cm, the lever ratio of the handrail 2 to the lifting force arm 6.1 is 5, when the hydraulic jack 4.4 pushes the hollow ejector rod 4.2 to lift for 8.5 cm, the lift of the lifting end of the handrail 2 can reach 42.5 cm, the pressure plate 6.3 supplements the lift of the hollow ejector rod 4.2 and then rises for 2 cm, the total lift of the lifting ends of the handrail 2 can reach 52.5 cm, and the height of the handrail 2 above the ground is 70-83 cm.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A shifting machine with a turnable handrail is characterized by comprising a shifting machine body, a handrail lifting mechanism and a handrail rotating mechanism;

the bottom of the handrail lifting mechanism is connected with the shifter body, and the top of the handrail lifting mechanism is connected with the handrail rotating mechanism and used for driving the handrail rotating mechanism to swing up and down; the handrail lifting mechanism comprises a main upright post assembly, a roller bearing assembly, a lifting frame assembly and a connecting plate;

the main upright post assembly is used for driving the roller bearing assembly to lift;

the roller bearing assembly is connected with the top of the main upright post assembly and is used for bearing the lifting frame assembly;

the handrail rotating mechanism is connected with one end of the lifting frame assembly;

the connecting plate is arc-shaped, the upper end of the connecting plate is hinged with the other end of the lifting frame assembly, and the lower end of the connecting plate is fixedly connected with the fixing part on the outer side of the main upright post assembly;

after the main upright post assembly lifts the roller bearing assembly, the lifting frame assembly swings up and down around the hinged position of the main upright post assembly and the connecting plate;

the handrail rotating mechanism is connected with the beam between the two handrails and is used for rotating the two handrails and the beam; the handrail rotating mechanism comprises a semicircular plate, the semicircular plate is fixedly connected with the handrail lifting mechanism, the middle part of the cross beam between the two handrails is rotatably connected with the semicircular plate, the semicircular plate is provided with a plurality of positioning holes, and the bottom of the cross beam is fixedly provided with a spring limiting pull pin matched with the positioning holes;

the armrests are connected with binding bands matched with the armrests.

2. The shifter with the turnable armrests as claimed in claim 1, wherein the main column assembly comprises a housing, a lifting unit disposed in the housing, a top bar, and the fixing portion disposed outside the top bar, the fixing portion is a steel pipe, and the steel pipe is fixedly connected with the top of the housing; the bottom of the shell is connected with the shifting machine body; the bottom end of the ejector rod is connected with the output end of the lifting unit, and the top end of the ejector rod is fixedly connected with the roller bearing assembly.

3. The shifting machine with the turnover handrail as claimed in claim 1, wherein the lifting frame assembly comprises a lifting force arm, the middle part of the lifting force arm is arranged on the roller bearing assembly, two connecting pieces are symmetrically fixed on two sides of one end of the lifting force arm, and the lower ends of the two connecting pieces are hinged with the upper end of the connecting plate through cylindrical nut pins.

4. The shifter with the turnable armrest as claimed in claim 2, wherein said roller bearing assembly includes a bearing support, said bearing support is provided with a cylindrical nut, two roller bearings are mounted on said cylindrical nut, a spacer is provided between two said roller bearings, a bottom bolt is provided at the bottom of said bearing support, and said bottom bolt is screwed with said top rod in said main column assembly.

5. The machine of claim 2, wherein a height adjustment mechanism is provided between the lift bar and the lifting unit to adjust the height of the lift bar.

6. The shifter with the convertible armrest of claim 2, wherein the lifting unit is a hydraulic jack.

7. The machine of claim 1, wherein said arms are hingedly connected to said cross-piece.