JPH0661229U - wheelchair - Google Patents

Abstract

(57) [Abstract] [Purpose] The wheelchair according to the present invention rotates the wheel of the wheelchair by a combination of lever operation and gears. For turning the wheel, it takes an unnatural posture or moves the wheel. It reduces your strength. [Structure] A lever mounted on the side of a wheelchair, a grip for fixing the lever, and a gear at the tip of the lever rotate a gear mounted on a wheel, and a spring is used to control forward and backward movements.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The wheelchair according to the present invention relates to a wheelchair used by sick people, elderly people, etc. who have difficulty walking.

[0002]

[Prior art]

 If the wheelchair is operated by the person himself / herself, the cheaper wheelchair can rotate the frame attached to the wheel by hand to directly move the wheel to move forward / backward. The expensive ones are all electrically driven forwards, backwards and turns. Those that operate electrically are extremely expensive and uncommon. The method of turning the wheels by hand is convenient, but it requires an unnatural posture in order to turn the wheels, and also requires an arm force to move the wheels. Also, it cannot fall down and cannot be used with confidence.

[0003]

[Problems to be solved by the device]

 Unlike a bicycle, a wheelchair does not have a mechanism to drive at high speed. However, since it is manually operated, it requires a considerable amount of physical strength, and it is difficult for a child or an old person to operate it by himself. In this way, there is a problem that occurs when using an inexpensive wheelchair, so it is possible to move forward, backward, change direction, and brake without changing the posture and force as much as before, and to fall down. A preventive mechanism makes wheelchairs easier to use.

[0004]

[Means for Solving the Problems]

 In the wheelchair according to claim 1, a gear (rack) is attached to the tip of the lever, and the wheel is moved by engaging with a gear (spur gear) attached to the wheel of the wheelchair. Since you can move forward by pulling the lever toward you, you do not need as much force as before and you do not need to lean forward. Attach the grip to the lever to control the mounting position of the lever. Tighten the grip to engage the gears, and loosen the grip to disengage the gears. Sprung controls so that the gear at the tip of the lever always returns to the forward position. It also acts as a brake when the gears are engaged. According to the second aspect, the movable frame is attached to the vehicle body so as to both beautify the appearance and prevent the vehicle from falling.

[0005]

[Action]

 In this way, it is possible to use the conventional wheelchair with a simple modification, while compensating for the drawbacks of the conventional wheelchair. The feature of this device is that the gears are in a free state without engaging with each other unless the grip is tightened, so that when the nurse pushes the wheelchair, the nurse can move the wheelchair without any trouble. In addition, since it also serves as a brake, it can be moved forward even on slopes by alternating left and right. In order to make up for the drawbacks of wheelchairs that tend to fall, a frame that can be folded is attached to the car body to both beautify the wheelchair and prevent falls.

[0006]

【Example】

 Examples will be described with reference to the drawings. (FIG. 1) is a side view of the wheelchair according to claim 1. With the lever 3 attached to the side of the wheelchair 1, the grip 4 for fixing the lever 3 and the gear 5 at the tip of the lever 3, the gear 6 attached to the wheel 2 is rotated, and the springs 7 and 8 are used to move forward and backward. Control. (FIG. 2) is a front view of the wheelchair according to claim 1. (FIG. 3) is an example of use of the wheelchair according to claim 1.

FIG. 4 is a perspective view of the wheelchair according to claim 2. A movable frame 9 is attached to the body of the wheelchair 1 to prevent it from falling.

[0008]

[Effect of device]

 The wheelchair moving lever device according to the present invention constructed as described above can be easily attached to a conventional wheelchair and is inexpensive. Moreover, by using gears, the wheelchair can be moved and braked by operating the lever. In addition, a frame can be attached to the vehicle body to prevent it from falling, and the wheelchair can be used safely.

[0009]

[Brief description of drawings]

1 is a side view of the wheelchair according to claim 1;

FIG. 2 is a front view of the wheelchair according to claim 1.

FIG. 3 is a use example of the wheelchair according to claim 1.

FIG. 4 is a perspective view of the wheelchair according to claim 2;

[Explanation of symbols]

 Wheelchair 2 Wheel 3 Lever 4 Grip 5 6 Gear 7 8 ... Spring 9 ... Movable frame

Claims (2)

[Scope of utility model registration request] 1. A lever 3 attached to a side portion of a wheelchair 1, a grip 4 for fixing the lever 3, and a gear 5 at the tip of the lever 3.
With, a wheelchair configured to rotate a gear 6 attached to a wheel 2 and to control forward and backward movements by springs 7 and 8. 2. A wheelchair having a movable frame 9 attached to the vehicle body for the purpose of preventing the wheelchair 1 from falling over.