JPS60249954A - Standing position auxiliary electromotive wheelchair - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention [Field of Industrial Application] The present invention relates to an electric wheelchair, particularly for assisting people with lower limb disabilities who have difficulty in standing for long periods of time. This invention relates to a standing assist electric wheelchair adapted to work that requires standing posture.

[Conventional technology]

Electric wheelchairs have been proposed that provide behavioral and work functions to people with lower limb disabilities who have difficulty walking, allowing them to not only perform daily activities but also expand their work areas and expand their employment opportunities.1 For example, the present application Patent application 1982-1 based on applicant's proposal
In the electric i-column of No. 12790, a tower-shaped holding frame that is independently driven to rotate by an fc'fjL motor is erected on a platform that is driven to travel by an independent electric motor, and a tower-shaped holding frame that is driven by an independent electric motor is further mounted on the holding rod. The chair is equipped with a seat board with footboards that can be converted to a sitting or standing position. This electric wheelchair is intended for people with relatively severe lower limb impairment who have difficulty standing up from sitting on their own, so the structure is complex and the price is unavoidable.

[Problem to be solved by the invention]

Therefore, for people with relatively mild lower limb disabilities who have difficulty maintaining a standing position for long periods of time, although their upper limbs are close to normal and their trunk and lower limbs can stand on their own, A desk chair is a waste, and there was a demand for an electric wheelchair that can easily maintain a standing position for a disabled person who has moved from a sitting position to a standing position.

In view of the above, in the present invention, it is possible to take a standing position with one's own blade.
Assisting people with relatively mild lower limb disabilities after standing,
To provide a standing assist wheelchair t1jb with a simple structure and low cost that allows one to maintain a standing position for a long period of time without pain, and to promote employment of physically handicapped persons.

Structure of the Invention [Means for Solving the Problems] Therefore, the standing assist electric wheelchair according to the present invention includes a cart that is driven by an electric motor and can move forward and backward and steer left and right, and a stand on the top of the cart. A revolving floor that is supported by a vertical pivot shaft provided and driven by an electric motor and can be swiveled in an angular range of 90 angles to the left and right around the longitudinal axis of the trolley, and a height-adjustable chair that is erected on the revolving floor. a pack rest that is attached to the chair and is convertible between the user's back position when the user is sitting on the chair and the back position when the user is standing; a horizontal frame-shaped handrail provided therein; a kneepad provided in the middle of the leg; a length-adjustable safety belt attached to the top of the leg; It consists of an operation unit.

〔Example〕

An embodiment of the present invention will be described below based on drawings with threads.

〔composition〕

The bogie 1 forms a box-shaped casing when viewed from the side, and its front and rear portions are a pair of left and right steering front wheels 2.2 and a drive rear wheel 3.2, respectively.
31C is supported, and the driving rear wheels 3.3 are driven independently by driving electric motors 4.4 provided separately for each rear wheel. A vertical pivot shaft 5 is erected approximately at the center, and the pivot shaft 5 is connected to the housing portion 1.
It is rotated by a drive mechanism 6 provided inside a. The drive mechanism 6 consists of a turning electric motor 6a, a first stage worm gear reducer 6b, a second stage worm gear reducer 6Cs, and a third stage plain gear reducer 6d. A battery 7 that serves as a power source for the electric motors 4 and 6a for traveling and turning is housed.

A pivoting floor 7 is attached to the vertical pivoting shaft 5 so as to cover the upper surface of the flat-floored housing portion 1a of the truck 1. A pipe chair 8 is erected at the rear of the revolving floor 7, and the leg portions 8a of the chair 8 are formed in the shape of a telescoping barrel. The height of 8 can be adjusted arbitrarily.

The chair 8 is provided with a pack rest 9. That is, the pack rest 9 has its shafts 9a and 98 at both ends supported by the tips of the L-shaped support arms gb, and the support arms 9b, 98.
The proximal end of 9b is rotatably pivoted around a shaft 9C to an armless (armless) 8d that stands up on both sides of the chair seat 8C. and packless) 9t - support arm gb when falling backwards,
gb horizontal member 9d is armless) 8d, 8d horizontal member 8
The pack rest 9 is located at the back of the user while sitting on the chair. It also fell forward and the nine o'clock support arm gb, gb both armrests 8d,
It comes into contact with the front stoppers 8g and 8g provided at the front stopper 8d, and is located on the user's back in a standing position. In addition, both axes 9 of the pack rest 9
A, 9a end is fixed to a collar-shaped sliding member 9eK inserted through both support arms 9b, and a plurality of knob bolts 9ft erected and screwed into the sliding member 96 are arranged in the axial direction on the support arm 9b. By replacing the adjustment hole 9g...K, the pack rest 9 can be adjusted to the support arm 9 b Ic G. When the pack rest 9 falls backwards, it moves in the depth direction of the chair 8.
When falling forward, the position can be adjusted in the height direction.

In front of the chair 8, two parallel legs 10.10 are erected on the rotating floor 7, and a horizontal frame-shaped handrail 11 is fixed to the upper end of the legs 10.10, and the legs io, i.

The second arm 12 is attached to the horizontal member 10a installed in the middle of the
are arranged, and both ends of a safety belt 13 are attached to the upper part of the leg 10.10. The length of the safety belt 13 can be adjusted by replacing the plurality of adjustment holes 13a press-pierced at the end with the protrusions 10b of the legs 10.

An operating unit 14 is arranged within the frame of the handrail 11 at the top of the leg 10.10. The operation unit 1
4 includes, for example, a lever 14a for driving.

It includes a turning lever 14b, a brake operation switch 14C, a brake release button 14J, a power indicator lamp 14e, a power switch 14f, a battery indicator 14g, and a speed changeover switch 14h. and power switch 14
ft- is turned on and the traveling lever 14a' is tilted forward, backward, rightward, or leftward to move the trolley 1 forward, backward, rightward, or leftward, and by switching the speed changeover switch 14h, the speed can be set to two high and low speeds. Can be switched. Further, by tilting the turning lever 14b to the right or left, the turning floor 7 turns to the right or to the left. If the turning lever 14b is returned to neutral while the turning bed 7 is turning, the turning bed 7 will stop at an arbitrary turning position. The rotation of the rotating bed 7 is linked to an actuator 15 provided in the truck 1, and when the rotating bed 7 turns 90 degrees to the right or left about the axis of the truck 1 in both wave directions, the actuator 15 Limit switch 16 or 1 with right or left tilt 11
7 and automatically stops the rotation of the rotating floor 7. If the swing lever 14b is tilted in the opposite direction, the swing bed 7 will swing in the opposite direction, and when the swing bed 7 returns to the front, the actuator 15 will actuate the limit switch 18 on the front to temporarily move the swing bed 7. make it stop. If the turning lever 14b is kept tilted in the same direction, the turning bed 7 will continue turning in the same direction again after a temporary stop.

A table 19 is removably attached to the upper surface of the handrail 11 using grips 19a, 19a fixed to the lower surface thereof.

[For production]

Next, the operation of the above embodiment will be explained. The user first expands and contracts the legs 8a of the chair 8 according to his/her physique, then tightens them to fix the height of the chair 8, and then slides the pack rest 9 along the support arm 9bK. 9f is inserted into the adjustment hole 9g of the support arm 9b and tightened to fix the pack rest 9 in an appropriate position, and then the pack rest 9 is tilted backwards to rest on the back and seated on the chair 8C. Then, turn on the power switch 14f of the operation unit 14,
By tilting the travel lever 14a in the front, back, left, and right directions, the electric wheelchair can be moved in any direction, front, back, left, or right. At this time, two high and low speeds can be selected by switching the speed changeover switch 14h. Also, whether the vehicle is running or stopped, the turning lever 1
By tilting 4a to the right or left, the direction of the chair 8 can be rotated up to 90 degrees left and right about the longitudinal axis of the cart 10.

When the user needs to stand, the user stands up on his own, falls forward on the pack rest 9 with his hands, puts his back on the pack rest 9, transfers part of his weight to the knee pads, and puts his knees on the knee pads 12. Furthermore, a safety belt 13 is wrapped around the waist to prevent the body from falling off the pack rest 9. Driving operations when standing are the same as when sitting.

Persons with lower limb disabilities who are able to stand up using their own knife as described above but who have difficulty maintaining a standing position for long periods of time should sit or stand on a chair and move to the desired work location. The work area can be expanded by performing work directly facing or to the side, by turning or moving laterally as necessary, and by placing and transporting articles on the table 19. When a person with a lower limb disability takes a standing position, part of the body weight is supported by the pack rest 9 and the body is stably held by the knee pads 12 and the safety belt 13, allowing the person to maintain a standing position for a long time. becomes possible.

C1 Effects of the Invention As described above, the electric wheelchair with standing assistance according to the present invention is intended for people with relatively severe lower limb disabilities who have difficulty changing from a sitting position to a standing position using conventional self-cutting tools. Compared to conventional electric wheelchairs, this wheelchair has a simpler structure, is lighter and more compact because it does not require a power device to assist in changing the body position from a sitting position to a standing position, and can improve workability in changing from a sitting position to a standing position. can. Since it can be provided at a low price, it is useful for popularizing people with relatively mild lower limb disabilities who are able to stand up with their own knives, and can contribute to the promotion of employment for those with disabilities.

[Brief explanation of drawings]

The accompanying drawings show an embodiment of the invention, with FIG. 1 being a side view;
FIG. 2 is a plan view. l...Dolly, 4.6a...Electric motor, 7...Swivel floor, 8...Chair, 9...Pack rest, 9b...Support arm, 9e...Sliding member, 9f ...Knob bolt, 9g...Tune'riv hole, 10...Ill, 11.
...Handrail, 12...Kneepad, 13...
Safety belt, 14...operation unit, 19...table.

Claims (3)

[Claims] (1) A bogie that is driven by a Bt motive and can move forward and backward and steer left and right, and a bogie that is supported by a vertical pivot shaft erected on the top of the bogie and driven by an electric motor, centered around the longitudinal axis of the bogie. A revolving floor that can be rotated within an angle range of 90 degrees to the left and right, a height-adjustable chair that stands on the revolving floor, and a chair that is attached to the chair and that is attached to the user's back position when sitting and standing. a pack rest that can be freely changed to a different position; a horizontal frame-shaped handrail fixed to the upper end of the leg that stands upright in front of the chair on the rotating floor; and a knee pad that is arranged in the middle of the leg. A standing assist electric wheelchair comprising: a length-adjustable safety belt attached to the upper part of the leg; and an operation unit disposed on the upper part of the leg. (2) The pack rest is attached via a sliding member and a knob delt to a support arm that is pivotally connected to the chair so as to be rotatable in the front and back direction, and the knob seat is attached to a support arm that is rotatable in the back and forth direction, and the knob seat is attached to a support arm that is rotatable in the front and rear directions. The standing assist electric wheelchair according to item 1 of the invention, characterized in that the position of the support arm Ic can be adjusted by replacing the support arm Ic with any one of the holes. (3) Removable tape on the top of the handrail