A manually-operated moving seat that can connect, assemble, and separate a carriage, a running wheel unit, and a seat
The manually-operated wheelchair with rotatable wheels and chain connection facilitates compact direction conversion and disassembly, addressing the space constraints of conventional wheelchairs, enhancing maneuverability and storage efficiency.
Patent Information
- Application Number
- JP2025001000U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Conventional wheelchairs require a large volume and wide space for direction conversion due to their wheel configuration, making them difficult to load onto vehicles with small spaces and limiting their use in narrow passages.
A manually-operated wheelchair with a support column and rotatable wheels connected by a chain, allowing 360-degree horizontal rotation of the running wheel part and seat chair, enabling compact direction conversion and disassembly for storage.
Enables maneuverability in narrow spaces and reduces storage requirements, allowing the wheelchair to be loaded on vehicles with small spaces and used in areas inaccessible to conventional wheelchairs.
Smart Images

Figure 0003252053000001_ABST
Abstract
Description
Technical Field
[0001] The present invention equips the lower part of the seat chair with a support column for the running wheel part, and rotates two wheels that are not connected to the wheel axle to perform running movement. The rotation of the wheels is achieved by rotating a manually rotatable wheel installed between the running wheel part and the seat chair, and connecting the rotatable wheels with a chain to rotate the lower running wheels for running movement. For direction conversion, a manually rotatable wheel connected to two running wheels with a chain is rotated counterclockwise left and right to set the traveling direction. It is possible to change the direction around two running wheels, and the area required for direction conversion is small. Also, the vehicle body volume can be reduced, and it can be used in places with a narrow passage width. In addition, it can be disassembled and stored, and can be loaded on vehicles such as passenger cars with a small loading space.
Background Art
[0002] Conventional wheelchairs are equipped with large wheels on the sides of the seat and auxiliary wheels to ensure the safety of the vehicle body. Therefore, the vehicle body volume is large and a wide running path is required. Also, due to the distance between the installation positions of the main wheels and the auxiliary wheels, a large area is required for direction conversion. In addition, there are difficulties when loading on vehicles such as passenger cars. Problems to be solved by the invention
[0003] The manual running seat chair of the present invention can run with the width of the cart equipped with auxiliary wheels and the seat chair. Also, since two running wheels are provided, by rotating the seat chair around the running wheels as the center point, the rotation area for direction conversion can be reduced. In addition, the manual running seat chair of the present invention can be disassembled and stored separately into the cart part, the running wheel part, and the seat chair part, and does not require a large storage space for loading on vehicles such as cars. Means for solving the problems
[0004] A space where the running wheels can rotate 360 degrees horizontally is provided in the central part of the cart with auxiliary wheels, and a track facility where the running wheel part and the seat chair can rotate 360 degrees horizontally is constructed on the cart with auxiliary wheels, and a detaching device is provided on the cart so that the running wheel part and the cart can be separated. The seat chair has an assembled structure, and a detaching device is constructed at the lower part of the seat chair and connected to the support column on which the running wheel part is constructed for use. Effects of the invention
[0005] The manual wheelchair of the present invention moves by the rotation of two wheels of a running wheel part having two running wheels in the center of a cart having auxiliary wheels, so that it can move within the width of the cart having auxiliary wheels and does not require a wide movement width or a large area for turning. It can move in places where conventional wheelchairs cannot be used, expanding the activity range. Also, the cart part, running wheel part, and seat part can be disassembled and do not require a large storage space, so it can be loaded on vehicles such as private cars. When in use, it can be assembled and used for riding and moving.
Brief Description of the Drawings
[0006]
Figure 1
Figure 2
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Embodiments for Carrying out the Invention
[0007] This is a manual wheelchair that uses a folding mechanism equipped with a running wheel part equipped with two wheels on a cart having auxiliary wheels and connected to a support column, and a seat part is connected for use. A space where the running wheel part can rotate 360 degrees horizontally is provided in the center of the cart having auxiliary wheels, and a track where the running wheel part can rotate 360 degrees horizontally is formed on the cart having auxiliary wheels, and the running wheel part is fixed by a detachable fixing device.
Explanation of Reference Numerals
[0008] 1 Seat part 2 Footrest 3 Manual rotating wheel 4 Manual rotating wheel shaft 5 Running rotation wheel protection equipment 6 Cart with auxiliary wheels 7 Support column 8 Protection wheel 9 Connecting equipment for seat and support column 10 Running wheels 11 Upper rotating wheel for running wheel operation 12 Lower rotating wheel for running wheel operation 13 Chain for connecting running wheels 14 Independent axle for running wheels 15 Axle for auxiliary wheel for running wheel rotation 16 Auxiliary wheel for running wheels 17 Upper track for running wheels 18 Lower track for running wheels 19 Fixing and detaching equipment for upper track of running wheels
Claims
1. This invention is a manually operated walking wheelchair for assisting the movement of people with walking disabilities. It consists of a trolley with wheels for assisting in movement, a support column connected to the lower part of the wheelchair seat, two wheels enabling running and rotation installed at the lower part of the support column, and a device for rotating the running wheels installed between the wheelchair seat and the running wheels. The trolley with wheels for assisting in movement, the running equipment with two running wheels at the lower part of the support column, and the wheelchair seat are assembled, disassembled, stored, and used. It is a manually operated walking wheelchair.
2. A space allowing 360-degree horizontal rotation is provided at the central part of the trolley with wheels for assisting in movement, and a trolley is constructed with a track equipment that enables the wheelchair seat connected to the running equipment with two wheels to rotate 360 degrees horizontally to the left and right. This track equipment is structured such that in order for the running equipment to maintain stable 360-degree horizontal rotation, wheels are installed on the running wheel axle and fixed by the upper and lower track equipment. The upper track equipment has a detachable structure. It is the manually operated walking wheelchair of Claim 1.
3. The running equipment with two running wheels installed at the lower part of the support column is equipped with running wheels on a 180-degree line, a rotating wheel receiving the rotation of the running wheels, and a rotating wheel for running on the track equipment of the trolley on the running wheel axle. The two running wheels have an independent wheel axle structure and are structured such that the rotations of the left and right running wheels can be different. They are fixed to the support column connected to the wheelchair seat. Two auxiliary wheels enabling stable 360-degree horizontal rotation of the running wheels are constructed on a 90-degree line with the running wheel axle to run on the track equipment of the trolley. It is the manually operated walking wheelchair of Claim 1.
4. The device for rotating the running wheels between the wheelchair seat and the running wheels has an independent rotation axis on the right and left, the same as the lower running wheels. A rotating wheel is installed and connected by a chain to rotate the running wheels. The manually rotated rotating wheel has a detachable structure when being stored. It is the manually operated walking wheelchair of Claim 1.
5. The wheelchair seat is constructed and equipped with a detachable device on the upper part of the support column equipped with running wheels, and has a foldable structure when being disassembled and stored. It is the manually operated walking wheelchair of Claim 1.