TWI586342B - Manual wheelchair with reclining mechanism - Google Patents

Description

Manual wheelchair with reclining mechanism

The present invention relates to a manual wheelchair, and more particularly to a manual wheelchair having a reclining mechanism that allows an occupant to obtain better ride comfort.

People with physical or mental disabilities or seniors often rely on mobility aids such as wheelchairs to assist in walking because of physical discomfort. However, maintaining the same sitting position for a long time is prone to discomfort due to uneven seat pressure. In order to solve this problem, a reclining mechanism has been added to the wheelchair structure to allow the occupant to change posture and obtain better comfort, but the following shortcomings still need to be broken.

1. Center of gravity shift: At present, the reclining mechanism of the wheelchair mostly uses the end of the seat as the pivot point. Directly pushing and tilting with the actuator will make the position of the center of gravity of the occupant change excessively, and it is easy to cause the occupant during the reclining process. Fear, panic, and an additional anti-dumping mechanism to avoid overturning during the reclining process.

2. Actuation space: Due to the design of the current reclining mechanism, during the reclining process, the rear side of the wheelchair must be reserved for proper working space, which makes the overall handling poor.

3. Inconvenient storage: Because the wheelchairs equipped with the reclining mechanism are mainly electric wheelchairs, it is really troublesome for users with small space.

In view of the foregoing, the inventors of the present invention have painstakingly studied, thought, and designed a manual wheelchair with a reclining mechanism for many years to improve the lack of the prior art, thereby enhancing the industrial use and utilization.

In view of the above-mentioned problems, the object of the present invention is to provide a manual wheelchair with a reclining mechanism, which is based on a manual wheelchair, and is designed for its seat, which is characterized by the reclining of the seat. The mechanism is improved by the concept of a double-slider connecting rod set, and a first sliding rail and a second sliding rail are arranged on the handle frame of the wheelchair, and the pivoting member group of the seat is disposed in the first sliding rail and the second sliding rail. The seat pivoting member group is simultaneously slid in both directions along the first sliding rail and the second sliding rail to achieve the purpose of reclining.

In view of the above-mentioned problems, the object of the present invention is to provide a manual wheelchair with a reclining mechanism, which is designed to allow the occupant's center of gravity to be gently transferred to avoid excessive shock during the lying process. It can increase the comfort of the occupants.

In view of the above-mentioned problems, the object of the present invention is to provide a manual wheelchair with a reclining mechanism. When the reclining structure is actuated, the entire seat portion is moved forward to shorten the space required for the reclining portion to be tilted. It is easier to push a wheelchair that has been lowered.

In view of the above-mentioned problems, the object of the present invention is to provide a manual wheelchair with a reclining mechanism, which can simultaneously improve the two problems of gravity center shift and back tilt space demand by using a single mechanism design.

In view of the above-mentioned problems, the object of the present invention is to provide a manual wheelchair with a reclining mechanism, and a storage structure is further added to the seat portion to allow the wheelchair to be integrally folded and stored, so as to effectively solve the problem of space storage.

In view of the above, the present invention provides a manual wheelchair having a reclining mechanism that includes a wheelchair body and a seat. The wheelchair body comprises a seat structure and two wheel sets, and the two wheel sets are respectively disposed on two sides of the seat structure, each wheel set includes a handle frame and a motion wheel, and the action wheel is mounted on the outer side of the handle frame, the handle frame There is a first slide rail and a second slide rail. The seat portion is disposed on the seat structure, and the pivot member group is disposed on each side of the seat portion, and the pivot member set includes the first pivoting member and the second pivoting member.

The first pivoting member and the second pivoting member respectively correspond to the first sliding rail and the second sliding rail disposed on the same side of the handle frame to be assembled into a reclining structure. When the user pushes against the reclining structure, the reclining structure slides in both directions along the first sliding rail and the second sliding rail, so that the seat portion is inclined at an angle.

Preferably, the seat further comprises a seat back, and the seat back is coupled to the seat to form a seat.

Preferably, the seat portion further includes an angle adjusting device, and the angle adjusting device is disposed at a joint between the seat portion and the seat back.

Preferably, the back of the chair may include two supporting columns and flexible connecting materials, the two supporting columns are respectively erected on two sides of the rear end of the seat, and the flexible connecting material is coupled to the two supporting columns.

Preferably, the seat portion further comprises two rod members, and the two rod members are correspondingly disposed on two sides of the seat portion, and the first pivoting member and the second pivoting member are respectively disposed at opposite ends of each of the rod members.

Preferably, the lever further includes an adjustment portion to adjust the length of the lever.

Preferably, the reclining structure can be a double slider link set.

Preferably, the seat further comprises a storage structure, and the two ends of the storage structure are respectively connected to the handle frame.

Preferably, the receiving structure may be a folding link set or a telescopic rod.

Preferably, the handle frame further comprises a baffle, and the first slide rail and the second slide rail are disposed on the baffle.

In order to make the above-mentioned objects, technical features, and gains after actual implementation more obvious, a more detailed description will be given below with reference to the corresponding drawings in the preferred embodiments.

The features, the contents and advantages of the present invention, and the advantages thereof, will be understood by the present invention. The present invention will be described in detail with reference to the accompanying drawings, The use of the present invention is not intended to be a limitation of the scope of the present invention, and the scope of the present invention is not limited by the scope and configuration of the accompanying drawings.

The advantages and features of the present invention, as well as the technical methods of the present invention, are described in more detail with reference to the exemplary embodiments and the accompanying drawings, and the present invention may be implemented in various forms and should not be construed as limited thereby. The embodiments of the present invention, and the embodiments of the present invention are intended to provide a more complete and complete and complete disclosure of the scope of the present invention, and The scope of the patent application is defined.

Please refer to FIG. 1 and FIG. 2 together. As can be seen from the figure, the manual wheelchair 100 with the reclining mechanism disclosed in the present invention includes the wheelchair body 10 and the seat portion 20. The wheelchair body 10 includes a seat structure 11 and two wheel sets 12, and the two wheel sets 12 are respectively disposed on two sides of the seat structure 11, and each wheel set 12 includes a handle frame 121 and a motion wheel 122. Provided on the outer side of the handle frame 121, the above components are designed based on a conventional manual wheelchair, so that the wheelchair body 10 has a body housing structure 17 for convenient folding and storage. The difference between the present invention and the conventional wheelchair structure is that the first slide rail 125 in the horizontal movement direction and the second slide rail 126 in the vertical movement direction are designed on the handle frame 121. In practice, the first slide rail 125 and the second slide rail 126 can directly purchase a commercially available slide rail assembly, and are mounted on the handle frame 121 in an appropriate position as needed. A baffle 1211 may be added to the handle frame 121, and a sliding groove of a straight groove or a curved groove may be formed on the baffle 1211 to replace the arrangement of the first slide rail 125 and the second slide rail 126.

The seat portion 20 is disposed on the seat structure 11 , and the pivoting member group 21 is disposed on each side of the seat portion 20 , and the pivoting member group 21 includes the first pivoting member 211 and the second pivoting member 212 . The first pivoting member 211 and the second pivoting member 212 respectively correspond to the first sliding rail 125 and the second sliding rail 126 disposed on the same side of the handle frame 121 to be assembled into the reclining structure 50. When the first sliding rail 125 and the second sliding rail 126 are in the sliding groove state, the first pivoting member 211 and the second pivoting member 212 may be rollers.

In practice, the seat portion 20 can extend upwardly from the seat back 23 to form the seat portion 25, or the seat portion 20 and the seat back portion 23 are separate components that are assembled to form the seat portion 25. When the seat portion 25 is in an assembled state, an angle adjusting device 255 can be added to the joint between the seat portion 20 and the seat back 23 to adjust the connection angle between the seat portion 20 and the seat back 23.

Further, the reclining structure 50 of the present invention is designed with a double-slider link set: the first slide rail 125 and the second slide rail 126 are regarded as two sliding slots, and the first pivoting member 211 and the second pivoting joint The function of the member 212 is similar to the two sliders, and the distance between the first pivoting member 211 and the second pivoting member 212 is regarded as a connecting rod in the double-sliding link group. When the position of any of the sliders is changed, the tilting angle of the connecting rod changes correspondingly. Similarly, when the user pushes against the reclining structure 50, the reclining structure 50 simultaneously slides in both directions along the direction of the first rail 125 and the second rail 126, so that the seat 20 is tilted at several angles.

For example, when the seat portion 25 is pressed down, the first pivoting member 211 moves forward along the first sliding rail 125, and the second pivoting member 212 moves upward in the direction of the second sliding rail 126. At this time, the seat portion 25 is converted from the normal position to the reclining position, so that the occupant's center of gravity is transferred from the buttocks to the lower back to disperse the buttock pressure, and the occupant's center of gravity can be gently transferred to increase the comfort of the occupant. . Moreover, by the design of the reclining structure 50, the distance when the overall seating portion 25 is tilted back can be controlled within an allowable range, making it easier for the caregiver to push the wheelchair that has been reclined. When the seat portion 25 is to be rotated back to the normal position, only the seat portion 25 is pushed forward, the first pivoting member 211 moves rearward along the first sliding rail 125, and the second pivoting member 212 is along the second position. The slide rail 126 moves downward.

In other words, the reclining angle of the seat portion 25 is limited by the installation position of the first rail 125 and the second rail 126, the length of the rail, and the distance between the first pivoting member 211 and the second pivoting member 212. Equal geometry relative parameters. In order to increase the flexibility of the reclining structure 50, the rod member 205 can be respectively mounted on the two sides of the seat portion 20, and the first pivoting member 211 and the second pivoting member 212 are respectively disposed on the two ends of the rod member 205, and the rod member is respectively The adjustment portion 2055 can be further provided to adjust the length of the rod member 205. The inclination angle of the seat portion 25 can be appropriately restricted by adjusting the length of the lever member 205.

Referring to FIG. 3, in order to further meet the storage requirements of the wheelchair structure, the seat portion 20 and the seat back 23 are designed to be storable. However, the present invention is only exemplified, but not limited thereto. The storage portion of the seat portion 20 is provided with a storage structure 27 such as a folding link group or a telescopic rod. The two ends of the storage structure 27 are connected to the handle frames 121 on both sides. The storage state of the seat back 23 is such that the support columns 231 are respectively erected on both sides of the rear end of the seat portion 20, and the two support columns 231 are connected by a flexible connecting material 232 such as a high-strength cloth.

The embodiments described above are merely illustrative of the technical spirit and the features of the present invention, and the objects of the present invention can be understood by those skilled in the art, and the scope of the present invention cannot be limited thereto. That is, the equivalent variations or modifications made by the spirit of the present invention should still be included in the scope of the present invention.

100‧‧‧Manual wheelchair with reclining mechanism
10‧‧‧ Wheelchair body
11‧‧‧Seat structure
12‧‧‧ Wheel set
121‧‧‧Handle frame
1211‧‧ ‧ baffle
122‧‧‧Action Wheel
125‧‧‧First slide rail
126‧‧‧Second slide
17‧‧‧ Body storage structure
20‧‧‧s
205‧‧‧ rods
2055‧‧‧Adjustment Department
21‧‧‧Pivot set
211‧‧‧First pivoting piece
212‧‧‧Second pivotal joint
23‧‧‧ chair back
231‧‧‧Support column
232‧‧‧Flexible connector
25‧‧‧The Department of Riding
255‧‧‧ Angle adjustment device
27‧‧‧Storage structure
50‧‧‧deep structure

Figure 1 is a schematic view showing the structure of a manual wheelchair having a reclining mechanism of the present invention. Fig. 2 is a schematic view showing the operation of the reclining mechanism of the present invention. Fig. 3 is a schematic view showing the storage of a manual wheelchair with a reclining mechanism according to the present invention.

100‧‧‧Manual wheelchair with reclining mechanism

10‧‧‧ Wheelchair body

11‧‧‧Seat structure

12‧‧‧ Wheel set

121‧‧‧Handle frame

1211‧‧ ‧ baffle

122‧‧‧Action Wheel

125‧‧‧First slide rail

126‧‧‧Second slide

17‧‧‧ Body storage structure

20‧‧‧s

205‧‧‧ rods

2055‧‧‧Adjustment Department

21‧‧‧Pivot set

211‧‧‧First pivoting piece

212‧‧‧Second pivotal joint

23‧‧‧ chair back

25‧‧‧The Department of Riding

255‧‧‧ Angle adjustment device

50‧‧‧deep structure

Claims (10)

A manual wheelchair with a reclining mechanism, comprising: a wheelchair body comprising a part structure and a second wheel set respectively disposed on two sides of the seat structure, each of the wheel sets comprising a handle frame and a action wheel The action wheel is mounted on the outer side of the handle frame, each of the handle frames has a first slide rail and a second slide rail; and a portion is disposed on the seat structure, the two sides of the seat Each of the pivoting member sets includes a first pivoting member and a second pivoting member, wherein the first pivoting member and the second pivoting member are respectively disposed in the same The first sliding rail and the second sliding rail of the handle frame are assembled to form a reclining structure; wherein, when the user pushes against the reclining structure, the reclining structure is along the first sliding The rail and the second rail slide in both directions to tilt the seat at an angle. The manual wheelchair with a reclining mechanism according to claim 1, wherein the seat further includes a seat back coupled to the seat to form a seat. The manual wheelchair with a reclining mechanism according to claim 2, wherein the seat portion further comprises an angle adjusting device disposed at a joint of the seat portion and the seat back. The manual wheelchair with a reclining mechanism according to the second aspect of the invention, wherein the back of the chair comprises two supporting columns and a flexible connecting material, and the two supporting columns are respectively standing at the rear end of the seat. On the side, the flexible connecting material is coupled to the two supporting columns. The manual wheelchair with a reclining mechanism according to claim 1, wherein the seat further comprises two rods, and the two rods are correspondingly disposed on two sides of the seat, and the two ends of the rod are respectively The first pivoting member and the second pivoting member are respectively disposed. The manual wheelchair with a reclining mechanism according to claim 5, wherein the lever further comprises an adjusting portion for adjusting the length of the lever. A manual wheelchair having a reclining mechanism according to claim 1, wherein the reclining structure is a double-sliding link set. The manual wheelchair with a reclining mechanism according to claim 1, wherein the seat further comprises a receiving structure, and the two ends of the receiving structure are respectively connected to the handle frame. The manual wheelchair with a reclining mechanism according to claim 8, wherein the storage structure is a folding link set or a telescopic rod. The manual wheelchair with a reclining mechanism according to claim 1, wherein the handle frame further comprises a baffle, and the first sliding rail and the second sliding rail are disposed on the baffle.