TWI868005B - Folding structure of mobility aids - Google Patents

Abstract

The present invention relates to a folding structure of mobility aids wherein the frame is equipped with a front frame and a rear frame respectively, and a folding linkage device with a connecting seat between the front frame and the rear frame, the connecting seat is provided with two meshing first gears and second gears, the first gear is connected to the rear end of the front frame, and the second gear is connected to the front end of the rear frame; thereby , when not in use, the upward force can be exerted by the connecting seat between the front frame and the rear frame of the frame, and the first gear and the second gear are meshed to drive, so that the entire frame can be folded into a flat shape , which can save more space and be more convenient whether it is stored or transported, and add more practical features in its overall implementation and use.

Description

Mobility aid folding structure

The present invention relates to a folding structure of a mobility assistive device, and more particularly to a structure that allows the entire frame of the mobility assistive device to be folded into a flat shape when not in use, so that it can save space and be more convenient in terms of storage or transportation, and increase its overall practicality and efficacy.

According to the report, we often see people suffering from lower body paralysis due to major diseases or injuries such as car accidents and strokes, or long-term bedridden illness, which causes the muscles in both legs to atrophy and makes it impossible for them to stand up and walk easily, or the physiological function of the elderly deteriorates, causing slow movement and inability to walk quickly and easily. These people with mobility problems often need to use crutches when they want to travel long distances. Or wheelchairs to help people move, but because these devices are all human-powered, they are not only very labor-intensive, but also cannot be moved at a fast speed, and there are many troubles and inconveniences; therefore, some companies have developed various types of mobility aids such as electric scooters and electric wheelchairs to use electrical energy conversion as power to help people with mobility difficulties move and move conveniently.

However, although various common mobility assistive devices can use electrical energy conversion as a power source to achieve the expected effect of facilitating people with mobility difficulties to move over long distances, it is found in their actual implementation that the structure of such mobility assistive devices is generally an integrated structure design and cannot be folded and collapsed, so that when the mobility assistive device is not in use, it takes up a lot of storage space. Whether it is in the storage and transportation of the business, or the people's handling, moving or storage, it is extremely inconvenient and troublesome; although some businesses use detachable methods to reduce the space occupied by the mobility aid, the disassembly and assembly process not only takes more time, but also is extremely troublesome and inconvenient in its implementation, so that there is still room for improvement in the folding problem of the mobility aid.

Therefore, the inventor, in view of this, has adhered to the rich design development and actual manufacturing experience in the relevant industry for many years, and has conducted research and improvement on the existing deficiencies, providing a folding structure of a mobility aid, in order to achieve the purpose of better practical value.

The main purpose of the present invention is to provide a folding structure of a mobility aid, which can mainly make the connecting seat between the front frame and the rear frame of the frame exert an upward force, and use the first gear and the second gear to engage and drive, so that the entire frame can be folded into a flat shape, so that it can save more space and be more convenient in storage or transportation, and its overall implementation and use can increase the practical performance characteristics.

The main purpose and effect of the folding structure of the mobility aid of the present invention are achieved by the following specific technical means: it mainly includes a frame and a folding linkage device; wherein: the frame is provided with a front frame and a rear frame respectively, a sleeve is provided at the front end of the front frame, the sleeve is provided to be combined with the handle, so that the front frame is connected to the bottom end of the handle, and a rear body is provided corresponding to the rear frame, the rear body and the rear frame can be regarded as a whole or separately provided, a bracket is connected to the upper part of the rear body, and the other end of the bracket is connected to the seat; the folding linkage device is provided with a connecting seat between the front frame and the rear frame of the frame, and the connecting seat is provided with a connecting seat. There are two interlocking first and second gears, the first gear is connected to the rear end of the front frame, so that the front frame and the first gear rotate synchronously, a first connecting rod is connected and pivoted between the bottom of the connecting seat and the bottom of the sleeve, and the second gear is connected to the rear frame and the front end of the rear body, so that the rear frame, the rear body and the second gear rotate synchronously, a second connecting rod is provided at the bottom of the connecting seat corresponding to the rear frame, the other end of the second connecting rod is pivotally connected to the bottom end of a connecting member, the middle section of the connecting member can be pivotally connected to the rear frame and the rear body, and a third connecting rod is connected between the top end of the connecting member and the bracket.

A preferred embodiment of the folding structure of the mobility aid of the present invention, wherein a front wheel is disposed below the front end of the front frame, and a rear wheel is disposed below the rear end of the rear body.

A preferred embodiment of the folding structure of the mobility aid of the present invention, wherein the rear end pivot of the seat is combined with a backrest.

A preferred embodiment of the folding structure of the mobility aid of the present invention, wherein a power source is provided in the connecting seat to drive the first gear to rotate.

A preferred embodiment of the folding structure of the mobility aid of the present invention, wherein a power source is provided in the connecting seat to drive the second gear to rotate.

In order to make the technical content, purpose of the invention and the effect achieved by the present invention more complete and clear, they are described in detail below, and please refer to the disclosed drawings and figure numbers: First, please refer to the first figure of the structural schematic diagram of the present invention, the present invention mainly includes a frame (1) and a folding linkage device (2); wherein: the frame (1) is respectively provided with a front frame (11) and a rear frame (12), the front frame (11) is provided with a front wheel (111) at the lower front end, and a sleeve (13) is provided at the front end of the front frame (11), and the sleeve (13) is provided. 13) is combined with the handle (14), so that the front frame (11) is connected to the bottom end of the handle (14) in a pivotal manner, and a rear body (121) is provided corresponding to the rear frame (12). The rear body (121) and the rear frame (12) can be regarded as a whole or separately provided. A rear wheel (122) is provided below the rear end of the rear body (121), and a bracket (15) is pivotally combined with the upper part of the rear body (121). The other end of the bracket (15) is pivotally combined with a seat (16), and a backrest (161) is pivotally combined with the rear end of the seat (16).

The folding linkage device (2) is provided with a connecting seat (21) between the front frame (11) and the rear frame (12) of the frame (1). The connecting seat (21) is provided with a first gear (211) and a second gear (212) that are engaged with each other. A power source (213) may be provided in the connecting seat (21) to drive the first gear (211) or the second gear (212) to rotate (please refer to the second figure for a partial enlarged structural schematic diagram of the present invention). The first gear (211) is connected to the rear end of the front frame (11) so that the front frame (11) and the first gear (211) rotate synchronously. A first connecting rod (22) is connected and pivoted between the bottom of the connecting seat (21) and the rear body (121), and the second gear (212) is connected to the rear frame (12) and the front end of the rear body (121), so that the rear frame (12), the rear body (121) and the second gear (212) rotate synchronously. A second connecting rod (23) is provided at the bottom of the connecting seat (21) corresponding to the rear frame (12). The other end of the second connecting rod (23) is pivotally connected to the bottom end of a connecting member (24). The middle section of the connecting member (24) can be used for the rear frame (12) and the rear body (121) to be pivotally connected. A third connecting rod (25) is connected and provided between the top end of the connecting member (24) and the bracket (15).

In this way, please refer to the third figure of the folding action structure schematic diagram of the present invention, so that when the present invention is to be folded, the chair back (161) can be folded toward the chair seat (16), and an upward force is applied to the connecting seat (21) of the folding linkage device (2), so that the first gear (211) and the second gear (212) that are engaged in the connecting seat (21) are synchronously rotated outward relative to each other, or the power source (213) is used to drive the first gear (211) to rotate outward relative to each other. The gear (211) or the second gear (212) rotates, and the first gear (211) and the second gear (212) rotate outward synchronously relative to each other, so as to synchronously drive the front frame (11) connected to the first gear (211) and the rear frame (12) and the rear body (121) connected to the second gear (212) to rotate and fold. During the rotation and folding process of the front frame (11) and the rear frame (12), the bottom of the connecting seat (21) and the rear body (121) are connected. The first connecting rod (22) is connected to the bottom of the sleeve (13). The front end of the first connecting rod (22) pushes the bottom end of the sleeve (13) outward, so that the handle (14) combined with the sleeve (13) is folded toward the front frame (11). At the same time, the second connecting rod (23) pushes the bottom end of the linking member (24) outward, so that the top end of the linking member (24) pulls the third connecting rod (25) inward in the opposite direction, so that as the third connecting rod (25) is pulled The front frame (11) and the rear frame (12) can be folded together by the movement of the support (15) and the seat (16) on the rear frame (12), so that the front frame (11) and the rear frame (12) can be folded together, and the handle (14) is folded outside the front frame (11). At the same time, the support (15) and the seat (16) are folded outside the rear frame (12), so that the entire frame (1) is folded into a flat shape (please refer to the fourth figure of the folded state structure schematic diagram of the present invention).

From the above description, it can be seen from the composition and use of the present invention that compared with the existing structure, the present invention mainly uses the connection seat between the front frame and the rear frame to apply an upward force, and uses the first gear and the second gear to drive the entire frame to fold into a flat shape, so that it can save more space and be more convenient in storage or transportation, and its overall implementation and use have more practical and effective characteristics.

However, the aforementioned embodiments or drawings do not limit the product structure or usage of the present invention. Any appropriate changes or modifications by those with ordinary knowledge in the relevant technical field should be considered as not departing from the patent scope of the present invention.

In summary, the embodiments of the present invention can achieve the expected effects, and the specific structure disclosed is not only not seen in similar products, but also has not been disclosed before the application. It fully complies with the provisions and requirements of the Patent Law. Therefore, an application for invention patent is filed in accordance with the law. I sincerely request that you review it and grant the patent. I would really appreciate the convenience.

1: Frame

11:Front frame

111:Front wheel

12: Rear frame

121: Rear body

122:Rear wheel

13: Socket

14:Handle

15: Bracket

16: Seat

161: Chair back

2: Folding linkage device

21: Connecting seat

211: First gear

212: Second gear

213: Power source

22: First connecting rod

23: Second connecting rod

24: Linkage

25: Third connecting rod

Figure 1: Schematic diagram of the structure of the present invention

Figure 2: A partially enlarged schematic diagram of the structure of the present invention

Figure 3: Schematic diagram of the folding action structure of the present invention

Figure 4: Schematic diagram of the folded structure of the present invention

1: Frame

11:Front frame

111:Front wheel

12: Rear frame

121: Rear body

122:Rear wheel

13: Socket

14:Handle

15: Bracket

16: Seat

161: Chair back

2: Folding linkage device

21: Connecting seat

211: First gear

212: Second gear

22: First connecting rod

23: Second connecting rod

24: Linkage

25: Third connecting rod

Claims (5)

A folding structure of a mobility assistive device mainly comprises a frame and a folding linkage device; wherein: the frame is provided with a front frame and a rear frame respectively, a sleeve is provided at the front end of the front frame, the sleeve is provided to be combined with a handle, so that the front frame is pivotally connected to the bottom end of the handle, a rear body is provided corresponding to the rear frame, the rear body and the rear frame can be regarded as a whole or separately provided, a bracket is pivotally combined with the upper part of the rear body, and a seat is pivotally combined with the other end of the bracket; the folding linkage device is provided with a connecting seat between the front frame and the rear frame of the frame, and the connecting seat is provided with two first gears and a gear wheel that are engaged with each other. The second gear, the first gear is connected to the rear end of the front frame, so that the front frame and the first gear rotate synchronously, and a first connecting rod is connected and pivoted between the bottom of the connecting seat and the bottom of the sleeve, and the second gear is connected to the rear frame and the front end of the rear body, so that the rear frame, the rear body and the second gear rotate synchronously. A second connecting rod is provided at the bottom of the connecting seat corresponding to the rear frame, and the other end of the second connecting rod is pivotally connected to the bottom end of a connecting member. The middle section of the connecting member can be pivotally connected to the rear frame and the rear body, and a third connecting rod is connected and provided between the top end of the connecting member and the bracket. The folding structure of the mobility aid as described in claim 1, wherein a front wheel is disposed below the front end of the front frame, and a rear wheel is disposed below the rear end of the rear body. The folding structure of the mobility aid as described in claim 1, wherein the rear end hinge of the seat is combined with a backrest. The folding structure of the mobility aid as described in claim 1, wherein a power source is provided in the connecting seat to drive the first gear to rotate. The folding structure of the mobility aid as described in claim 1, wherein a power source is provided in the connecting seat to drive the second gear to rotate.

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