JPH0595523U - Wheelchair stair lift assistance device - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] To provide an auxiliary device for easily moving up and down stairs while a passenger is in a wheelchair. [Structure] Combining a pipe part, a cane, a guide plate (11), a brake lever (13), and a pulling spring that pulls the pipe part forward or backward, and when moving up the stairs, move it backward and If you put the rear wheel on the first step and tilt it backward to release the sliding stop of the cane, the lower end of the cane descends to the back and touches the ground due to the action of the pulling spring and the weight of the cane. Stop the movement, use the cane as a support, pull up the handle (14) diagonally rearward, and raise the rear wheel one step up. When descending, replace the pulling spring, keep the cane in the ground while keeping it horizontal, stop the slide to support the cane, and lower the handle diagonally to lower the rear wheel. The cane is further tilted so that the lower end of the cane floats, and the lower end of the cane is moved forward by the action of the pulling spring.

Description

[Detailed Description of the Invention] [Industrial field of application] This is a device for ascending and descending stairs of a wheelchair.

 [Problems to be solved by the invention] If the caregiver has a certain level of physical strength, it is very convenient to be able to climb the stairs while the person is sitting on a wheelchair, especially with 3 or 5 small stairs. It's a pity to get stuck.

[Means for Solving the Problems] A cane support part having a pipe part on the front, left and right sides of a wheelchair, and a stop device part for stopping the sliding of the cane passing therethrough at an arbitrary position, and its support shaft. Using a mounting plate, it is attached so that it can rotate around the support shaft, and either one of the pins (15) (16) attached to the frame of the vehicle chair and the hook at the bottom of the pipe part is pulled and the spring is pulled. And the inclination of the pipe part is pulled to either side, and the cane of the cane is operated by operating the brake lever (13) attached to the handle (14) via the brake cable (12). It is possible to release the sliding stop, attach guide plates (11) with guide holes on the front, left and right lower parts of the wheelchair, and pass it through the cane pipe and guide hole (10). Raise the front to release the cane from sliding and Tip is not locked stop there at the sliding to the ground, handle ▲ 14 ▼ to be lifted to the above, it is possible to keep up the rear wheel. Lifting, or tilting, the front of the wheelchair-a combination of sliding and stopping the cane, and moving the lower end forward or backward when the cane floats in the air due to the pulling bar. Therefore, the handle (14) can be lifted rearward and upward, and the stairs can be raised and lowered by slowly lowering it forward and downward.

If an auxiliary handle (17) extending obliquely backward as shown in FIG. 10 is used, the force required to move the handle up and down can be reduced. In this case, it would be more convenient if the mounting plate, cane support, guide plate (11), and auxiliary handle (17) can be easily mounted and removed.

[Operation, Example] When climbing stairs (18) with a wheelchair equipped with this device, first connect the hook and pin (16) with a pulling spring, and put the cane through the pipe and guide hole. Put the wheelchair backwards, attach the rear wheel under the first step of the stairs ▲ 18 ▼, and pull the handle backward to raise the front part of the wheelchair. At that point, pull the brake lever ▲ 13 ▼ to slide the cane. When the movement is released, the cane hangs down due to its own weight, and the lower end touches the ground. The state of FIG.

Next, pull up the steering wheel (14) diagonally rearward, and the rear wheels will ride on the first step of the stairs (18). [Fig. 4] Next, pulling the handle (14) backward again raises the front part of the wheelchair, and the lower end of the cane comes into contact with the ground when the cane stop device is removed. [Fig. 5].

When the lower end of the cane moves away from the ground or stairs due to the action of the pulling spring, the lower end immediately moves backward. Then, by returning the brake lever (13) of the handle (14) again to stop the sliding of the cane and pull the handle (14) diagonally rearward, the rear wheel can be placed in the second stage. .. [Fig. 6].

Next, if the handle (14) is pulled back again to release the sliding stop of the cane, the lower end of the cane lands further rearward (FIG. 7).

Next, release the brake lever to stop the walking of the cane, and pull up the handle (14) diagonally rearward to put the rear wheel on the third stage. [Fig. 8] From now on, with the walking stick stopped, pull back the handle ▲ 14 ▼, the front part of the wheelchair goes up, the lower end of the walking stick moves backwards, and get on the first step of the stairs. [Fig. 9] In this way, the stairs can be climbed by tilting the wheelchair backward and pulling the handle (14) diagonally rearward. When you go down the stairs, remove the pull spring, re-hook it with the hook and pin ▲ 15 ▼, and you can go down in the opposite order. For the second and third steps of the bottom and top of the stairs, slide and stop the cane repeatedly. Although it has to be done, the cane's sliding can be stopped in the middle of the stairs, and it is possible to move up and down by tilting the wheelchair backwards and pulling up and down the handle. When climbing stairs, it is safe to keep the wheelchair and passengers secured with a belt.

[Effect of the device] It is necessary for the caregiver to have some physical strength and caution in order to move up and down the stairs with the person's chair equipped with this device, but it is very convenient for those who can use it. Be released.

[Brief description of drawings]

[FIG. 1] A perspective view showing the relationship between a frame of a wheelchair, a cane support portion attached to one side, a guide plate, and a cane. [FIG. 2] A side view of a wheelchair equipped with the present device when traveling on a level ground. [FIGS. 3, 4, 5, 6, 7, 8 and 9] Side views sequentially showing the state of the wheelchair when climbing the stairs. [FIG. 10] A side view of a wheelchair to which the present device and an auxiliary handle are attached. [Explanation of Codes] Cane Pipe part Stop device part Support shaft Pulling spring Hook Cane support part Mounting plate ▲ 10 ▼ Guide hole ▲ 11 ▼ Guide plate ▲ 12 ▼ Brake cable ▲ 13 ▼ Brake lever ▲ 14 ▼ Handle ▲ 15 ▼ ▲ 16 ▼ Pin ▲ 17 ▼ Auxiliary handle ▲ 18 ▼ Stairs

Claims (3)

[Scope of utility model registration request] [Claim 1] A pipe part on which the cane slides lightly, a stopping device part for stopping the sliding of the cane at an arbitrary position, a support shaft, and a hook for pulling the inclination of the pipe part in a certain direction by a pulling spring. The cane support part is attached to the front part of the left and right frames of the wheelchair, and the support shaft is rotatably attached to the left and right frames of the wheelchair, and the guide hole (10) is provided below the cane support part. A guide plate (11) is attached, and a brake lever (13) is operated by a brake cable (12).
Attached to ▼, pin attached to wheelchair frame ▲ 15 ▼
A stair climbing assist device for a wheelchair, which is used by connecting any one of (16) and a hook with a pulling spring and inserting the hook through a pipe part of a cane and a guide hole (10). [Claim 2] A wheelchair incorporating the device of Claim 1 [Claim 3] A stair climbing assist device for a wheelchair according to claim 1 or 2, wherein an auxiliary handle (17) extending obliquely rearward is attached to a rear portion of a wheelchair frame.