JPH0523370A - Wheelchair - Google Patents

Abstract

PURPOSE:To make it possible to transfer a body from the side of a seat to a bed, etc., by moving a large wheel projected to the side of the seat to remove an obstruction. CONSTITUTION:A large wheel 3 is fixed on a supporting rod 8 one end of which is axially attached to a frame 2 through a rotation shaft 9. The supporting rod 8 is freely rotated and is restricted at a specified position by locking another end part with a tapered shape by means of a locking mechanism 12, which provides an actuating rod 14 being freely slidable by means of an operating lever 15 and a fitting rod 16 for fitting and stopping another end part of the supporting rod 8. It is possible thereby that a patient can be transversely moved without any obstruction from the side of a seat when the patient gets on and off between it and a bed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelchair that can easily get in and out of a bed or the like.

[0002]

2. Description of the Related Art For example, a wheelchair is an indispensable means of transportation for a patient whose part of his / her body, particularly a leg part, has a paralyzed motor function due to an accident or the like, or a severely ill patient. When such a patient gets on and off between the bed and the wheelchair, the wheelchair may be approached to the bed directly in front of the bed, laid next to it, approached diagonally, or approached directly behind. It was When approaching directly from the front, the footrest hits the side frame first, and the wheelchair cannot be brought closer anymore.Therefore, the distance between the wheelchair and the bed mattress becomes large. Is often difficult to achieve. Similarly, when approaching from an oblique direction as well, the footrest hits the side frame first. When approaching from directly behind, the approach can be made closer than when approaching directly from the front, but a means for opening the backrest (for example, a fastener) is required. Therefore, in the case of horizontal mounting, the patient can be safely placed on and off because it can be placed along the side frame most. In that case, the armrests on both sides of the seat interfere with each other, so that a detachable structure is suitable.

[0003]

By the way, in the case of horizontal mounting, after removing the armrest, the patient moves his body laterally to transfer onto the mattress of the bed, but the large wheels project to both sides of the seat. With this structure, the patient must move while avoiding the large wheels. The present invention focuses on such a point, and an object thereof is to provide a wheelchair capable of getting on and off without any trouble.

[0004]

In order to solve the above-mentioned problems, the present invention relates to a wheelchair in which an armrest is detachably configured, and a frame is provided with one end portion of a support rod having a rotation shaft of large wheels attached thereto. A shaft is pivotally mounted, and the other end is locked by a lock mechanism for restraining the movement of the support rod, and an auxiliary wheel is provided on a frame to which one end of the support rod is pivotally mounted. The lock mechanism includes an operating rod slidably held by a holding frame, an operating lever for sliding the operating rod attached to one end of the operating rod, and an operating lever attached to the other end of the operating rod. And a fitting frame for fitting and locking the other end of the support rod.

[0005]

When the patient is transferred from the wheelchair to the bed, the caregiver places the wheelchair on the bed sideways and first locks the auxiliary wheels to prevent the wheelchair from moving. Then, the operating lever of the lock mechanism is operated to slide the operating rod, the other end of the supporting rod is disengaged from the fitting frame, and the supporting rod is unlocked. Since the support rod is in a state of being able to rotate around one end portion pivotally attached to the frame, the caregiver can rotate the large wheel together with the support rod and the one end portion of the support rod as the rotation axis. When the support rod rotates halfway around one end, the position of the rotation axis of the large wheel on the support rod moves to the rear of the frame from the position of the support rod in the locked state. For this reason, the large wheel moves to the rear of the frame from the initial position, and the portion protruding laterally of the seat disappears. Then, the armrests are removed, which completely removes the obstacles on the side of the seat and allows the patient to easily transfer to the bed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A wheelchair according to the present invention will be described below with reference to the accompanying drawings with reference to an embodiment.
In FIG. 1, reference numeral 1 indicates a wheelchair, and the wheelchair 1 includes a frame 2 having large wheels 3 which are rear wheels, small wheels 4 which are front wheels, and a footrest 5 which protrudes in front of the small wheels 4. To do. A seat 6 is formed on the frame 2 with an appropriate seat. Further, an armrest 7 is attached to the seat 6 on the frame 2.
It is provided detachably so as to cover the side of the.

In the wheelchair 1, as shown in FIG. 2, the large wheel 3 is attached to a support rod 8 whose one end is pivotally attached to the frame 2 via a rotary shaft 9. An auxiliary wheel 10 is attached to the frame 2 below the large wheel 3, and the auxiliary wheel 10 is provided with an operation pedal 11 that constitutes a lock mechanism.

The support rod 8 is rotatable about one end pivotally attached to the frame 2, and the other end of the tapered shape is locked by a lock mechanism 12 so that the support rod 8 is restrained at a predetermined position. Has become.

As shown in FIGS. 3 and 4, the locking mechanism 12 is attached to an operating rod 14 slidably held by a holding frame 13 attached to the frame 2 and one end of the operating rod 14. And a fitting frame 16 for fitting and locking the other end of the support rod 8 attached to the other end of the operating rod 14 with the operating lever 15 for sliding the operating rod 14. belongs to.

Since the wheelchair 1 according to the present invention is constructed as described above, its operation will be described.
When transferring from the bed to the bed B, the caregiver laterally puts the wheelchair 1 on the bed B (see FIGS. 5 and 6), and first, the auxiliary wheel 1
0 is locked by the operation pedal 11 to prevent the wheelchair 1 from moving (see FIG. 7). Then, the operating lever 15 of the lock mechanism 12 is operated to slide the operating rod 14, the other end of the supporting rod 8 is disengaged from the fitting frame 16, and the supporting rod 8 is unlocked. Since the support rod 8 is in a state of being able to rotate about one end pivotally attached to the frame 2, the caregiver rotates the large wheel 3 together with the support rod 8 with one end of the support rod 8 as a rotation axis. be able to. When the support rod 8 rotates halfway around one end, the position of the rotation shaft of the large wheel 3 on the support rod 8 moves to the rear of the frame 2 from the position of the support rod 8 in the locked state. Therefore, the large wheel 3 moves to the rear of the frame 2 from the initial position, and there is no protruding portion on the side of the seat (see FIG. 8). Next, when the armrest 7 is removed, the obstacle on the side of the seat is completely removed, and the patient can easily transfer to the bed B (see FIG. 9).

[0011]

According to the present invention, since the wheelchair is laterally attached to the bed, the large wheels projecting to the side of the seat can be moved, and the armrest can be removed to remove the obstacle, the patient can stay in bed. When getting on and off in between, it can be achieved by moving laterally from the side of the seat without any hindrance.

[0012]

[Brief description of drawings]

FIG. 1 is an external perspective view of a wheelchair according to the present invention.

FIG. 2 is a side view of the wheelchair shown in FIG.

FIG. 3 is a perspective view of a main part of the wheelchair shown in FIG.

FIG. 4 is a structural explanatory view of the lock mechanism shown in FIG.

FIG. 5 is a diagram illustrating the operation of the wheelchair according to the present invention.

FIG. 6 is a diagram illustrating the operation of the wheelchair according to the present invention.

FIG. 7 is a diagram illustrating the operation of the wheelchair according to the present invention.

FIG. 8 is a diagram illustrating the operation of the wheelchair according to the present invention.

FIG. 9 is a diagram illustrating the operation of the wheelchair according to the present invention.

[Explanation of symbols]

1 wheelchair 2 frames 3 large wheels 4 small wheels 5 footrest 6 seats 7 Armrest 8 Support rod 9 rotation axis 10 auxiliary wheels 11 Operation pedal 12 Lock mechanism 13 holding frame 14 Working rod 15 Operation lever 16 Mating frame

Claims (2)

[Claims] 1. A wheelchair having detachable armrests, wherein one end of a supporting rod to which a rotating shaft of a large wheel is attached is pivotally attached to a frame and the other end restrains the movement of the supporting rod. A wheelchair provided with an auxiliary wheel on a frame which is locked to the lock mechanism of 1. and has one end of the support rod pivotally mounted. 2. The lock mechanism according to claim 1, wherein an operating rod slidably held by a holding frame, an operating lever for sliding an operating rod attached to one end of the operating rod, and an operating lever. A wheelchair comprising: a fitting frame for fitting and locking the other end of the support rod attached to the other end of the rod.