JPH0585179B2 - - Google Patents

Description

[Detailed description of the invention]

【0001】

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelchair that is easy to get on and off from a bed or the like.

[0002]

BACKGROUND OF THE INVENTION For example, a wheelchair is essential as a means of transportation for patients who have become paralyzed in the motor function of a part of their body, particularly their legs, due to an accident or for a critically ill patient. When such a patient gets on and off the bed and the wheelchair, the wheelchair is approached from directly in front of the bed, on the side, from an angle, or from directly behind. Ta. If you approach from the front, the footrest will hit the side frame first, and then
Since the wheelchair cannot be brought closer, the distance between the wheelchair and the mattress of the bed becomes large, and it is often difficult to safely and reliably get on and off the bed without an assistant. Similarly, if you approach from an angle, the footrest will hit the side frame first. If you approach from directly behind, you can get closer than if you approach from directly in front, but you will need a means to open the backrest (for example, a fastener). Therefore, when placing the patient on the side, it is best to place the patient along the side frame, so that the patient can be safely taken on and off. In that case, the armrests on both sides of the seat will get in the way, so it is best to have a structure that is removable.

【0003】

[Problem to be solved by the invention] By the way,
When sitting on the side, the armrests are removed and the patient moves their body sideways onto the bed's pinerest; however, with large wheels protruding from both sides of the seat, the patient can You must move while avoiding the large wheels. The present invention has focused on this point, and an object of the present invention is to provide a wheelchair that allows users to get on and off the wheelchair without any hindrance.

[0004]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a wheelchair in which an armrest is configured to be detachable. The present invention is characterized in that an auxiliary wheel is provided on a frame to which one end of the support rod is pivotally attached, and the other end is locked to a lock mechanism for restraining movement of the support rod. Further, the lock mechanism includes an operating rod slidably held in the holding frame, an operating lever attached to one end of the operating rod for sliding the operating rod, and an operating lever attached to the other end of the operating rod. It is characterized by comprising a fitting frame for fitting and locking the other end of the supported rod.

[0005]

[Operation] When transferring a patient from a wheelchair to a bed, the caregiver places the wheelchair next to the bed and first locks the auxiliary wheels to prevent the wheelchair from moving. Then, by operating the operating lever of the lock mechanism, the operating rod is slid, the other end of the support rod is removed from the fitting frame, and the lock of the support rod is released. Since the support rod is in a state where it can rotate around one end that is pivoted to the frame, the caregiver can rotate the large wheel together with the support rod using one end of the support rod as the rotation axis. When the support rod rotates half a turn about one end, the position of the rotation axis of the large wheel on the support rod moves toward the rear of the frame from the position in the locked state of the support rod. As a result, the large wheels move from their initial positions to the rear of the frame, and the parts that protrude to the sides of the seat disappear. Next, when the armrest is removed, the obstruction on the side of the seat is completely removed, and the patient can easily transfer to the bed.

[0006]

[Embodiment] Next, an embodiment of the wheelchair according to the present invention will be described below with reference to the attached drawings. In FIG. 1, reference numeral 1 indicates a wheelchair, and this wheelchair 1 has large wheels 3, which are rear wheels, on a frame 2.
The vehicle is equipped with a small wheel 4 which is a front wheel, and a footrest 5 protruding in front of the small wheel 4.
Further, a seat 6 is formed on the frame 2 using an appropriate sheet. Furthermore, the frame 2
An armrest 7 is detachably provided so as to cover the sides of the seat 6.

[0007] In the wheelchair 1, as shown in FIG. 2, the large wheels 3 are attached to a support rod 8 whose one end is pivoted to the frame 2 via a rotating shaft 9. Further, an auxiliary wheel 10 is attached to the frame 2 below the large wheel 3, and the auxiliary wheel 10 is provided with an operating pedal 11 constituting a lock mechanism.

[0008] The support rod 8 is rotatable around one end that is pivoted to the frame 2, and is restrained in a predetermined position by locking the other tapered end with a locking mechanism 12. It has a structure.

[0009] As shown in FIGS. 3 and 4, the lock mechanism 12 includes an operating rod 14 slidably held by a holding frame 13 attached to the frame 2;
An operating rod 14 attached to one end of the operating rod 14
an operating lever 15 for sliding the
4 and a fitting frame 16 for fitting and locking the other end of the support rod 8 attached to the other end of the support rod 8.

[0010] Since the wheelchair 1 according to the present invention is configured as described above, its operation will be explained. When a patient transfers from the wheelchair 1 to the bed B, the caregiver places the wheelchair 1 next to the bed B (see Fig. 5,
(see Fig. 6), first, operate the auxiliary wheel 10 using the pedal 1.
1 performs a locking operation to prevent the wheelchair 1 from moving (see FIG. 7). Then, operate the operating lever 15 of the lock mechanism 12 to lock the operating rod 14.
The other end of the support rod 8 is removed from the fitting frame 16, and the support rod 8 is unlocked. Since the support rod 8 is in a state where it can rotate around one end that is pivoted to the frame 2, the caregiver rotates the large wheel 3 together with the support rod 8, using one end of the support rod 8 as the rotation axis. be able to. When the support rod 8 rotates half a turn around one end, the position of the rotation axis of the large wheel 3 on the support rod 8 moves to the rear of the frame 2 from the position where the support rod 8 is in the locked state. Therefore, the large wheel 3 moves from its initial position to the rear of the frame 2, and there is no protruding part on the side of the seat (see FIG. 8). Next, when the armrest 7 is removed, the obstruction on the side of the seat is completely removed, and the patient can easily transfer to the bed B (see FIG. 9).

[0011]

[Effects of the Invention] According to the present invention, the wheelchair can be placed next to the bed, the large wheels protruding to the sides of the seat can be moved, and the armrests can be removed to remove obstacles, allowing the patient to move between the bed and the bed. When getting on and off between seats, you can move to the side of the seat without any hindrance.

【0012】

[Brief explanation of drawings]

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

FIG. 2 is an explanatory side view of the wheelchair shown in FIG. 1.

FIG. 3 is a perspective view of essential parts of the wheelchair shown in FIG. 1.

FIG. 4 is an explanatory diagram of the structure of the lock mechanism shown in FIG. 3;

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

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

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

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

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

[Explanation of symbols]

1...Wheelchair 2...Frame 3...Large wheel 4...Small wheel 5...Foot rest 6...seat 7...Armrest 8...Support rod 9...Rotation axis 10...Auxiliary wheel 11...Operation pedal 12...Lock mechanism 13...Holding frame 14... Operating rod 15...operation lever 16...Mating frame.

Claims (2)

[Claims] Claim 1: In a wheelchair having a detachable armrest, one end of a support rod to which a rotating shaft of a large wheel is attached is attached to the frame, and the other end is used to restrain movement of the support rod. What is claimed is: 1. A wheelchair, characterized in that an auxiliary wheel is provided on a frame that is locked to a locking mechanism and to which one end of the support rod is pivoted. 2. The lock mechanism according to claim 1 includes: an operating rod slidably held in a holding frame; an operating lever for sliding the operating rod attached to one end of the operating rod; A wheelchair comprising a fitting frame for fitting and locking the other end of a support rod attached to the other end of the rod.