Seat of a walking frame

Abstract

A seat plate of a walking stick chair includes a connecting end and a terminal end. A base line extending along a first axis is defined through the connecting end. The terminal end is opposite to the connecting end along a second axis perpendicular to the first axis. The terminal end has a recessed portion and two protruding portions respectively disposed on both sides of the recessed portion along the first axis. A first distance between the protruding portions and the connecting end and perpendicular to the base line is greater than a second distance between the recessed portion and the connecting end and perpendicular to the base line. The shape of the recessed portion and the protruding portions of the terminal end increases the overall seating area.

Description

Technical Field

[0001] This utility model relates to a seating device, and more particularly to the seat board of a cane chair. Background Technology

[0002] Elderly people or those with mobility impairments often experience a decline in physiological function, resulting in less stamina than able to walk continuously. Therefore, they need to stop and rest during walking until their strength recovers before resuming. Consequently, some companies have developed devices that can be operated in either a sitting or supportive position according to the user's needs.

[0003] The applicant has developed a series of prior art related to cane chairs and crutch chairs, such as Taiwan certificate numbers TWI736504, TWI775584, and TWI799324. The aforementioned prior art has disclosed structures such as support rods, seat components, and linkage assemblies, and has indeed enabled cane chairs and crutch chairs to achieve the purpose of switching between the use of a cane and a seat, and to provide convenient use for the elderly or people with mobility difficulties.

[0004] The applicant believed that the seat surface component provided could increase the effective seating area and improve seating comfort without increasing weight, which finally led to the creation of this utility model. Utility Model Content

[0005] The purpose of this utility model is to provide a chair board for a cane chair that can increase the seating area.

[0006] The present invention relates to a cane chair with a seat panel. The cane chair further includes a pivot unit and a support unit. The seat panel is slidably connected to the support unit and can switch between an unfolded state and a folded state. When the seat panel is in the unfolded state, it is supported by the support unit. The seat panel includes a connecting end and an end portion. The connecting end defines a baseline extending along a first axial direction through the connecting end. The end portion is opposite to the connecting end along a second axial direction perpendicular to the first axial direction. The end portion has a recessed portion and two protruding portions respectively disposed on both sides of the recessed portion along the first axial direction. A first distance between the protruding portions and the connecting end, perpendicular to the baseline, is greater than a second distance between the recessed portion and the connecting end, perpendicular to the baseline.

[0007] The chair seat of the cane chair of this utility model has a concave arc-shaped recessed portion at the end and an outward convex arc-shaped protruding portion.

[0008] The chair seat of the cane chair of the present invention further includes two side edges connected between the connecting end and the end portion, and the connecting end has a middle section substantially parallel to the first axis, and two sloping shoulder sections connected between the middle section and the corresponding side edges, each sloping shoulder section gradually moving away from the baseline as it extends from the middle section toward the corresponding side edge.

[0009] The chair board of the cane chair of this utility model has each of the chamfered shoulder segments at the connecting end having a guide arc surface that connects to the corresponding side edge.

[0010] The chair seat of the cane chair of this utility model further includes a middle plate and two side plates pivotally connected to both sides of the middle plate along the first axis. The middle section is disposed on the middle plate, and each sloping shoulder section and its corresponding side edge are disposed on each side plate.

[0011] The beneficial effects of this utility model are as follows: by using the shapes of the recessed portion and the protruding portion at the end, and the first distance between the protruding portion and the connecting end and perpendicular to the baseline is greater than the second distance between the recessed portion and the connecting end and perpendicular to the baseline, the overall seating area can be increased and the stability of the seating can be improved without increasing the overall weight of the chair. Attached Figure Description

[0012] Figure 1 This is a three-dimensional installation diagram of one embodiment of the cane chair of this utility model;

[0013] Figure 2 This is a planar schematic diagram of the embodiment in an unfolded state;

[0014] Figure 3 This is a schematic diagram of the human body in its unfolded state in this embodiment;

[0015] Figure 4 This is a folded three-dimensional schematic diagram of this embodiment. Detailed Implementation

[0016] See Figure 1 and Figure 2 In one embodiment of the cane chair of this utility model, the cane chair further includes a pivot unit 2, a support unit 3, an auxiliary support device 4, and a linkage device 5. The seat 1 is slidably connected to the support unit 3, and when the seat 1 is unfolded for use, it is stably supported by the support unit 3 and the auxiliary support device 4.

[0017] In terms of location and outline shape, the chair panel 1 includes a connecting end 101, an end portion 102, and two side edge portions 103. In terms of components, the chair panel 1 also includes a middle plate 10 and two side plates 20.

[0018] The connecting end 101 defines a baseline L extending along a first axial direction X through the connecting end 101. The connecting end 101 has a middle section 104 substantially parallel to the first axial direction X, and two chamfered sections 105 connecting the middle section 104 and corresponding side edges 103. Each chamfered section 105 gradually moves away from the baseline L as it extends from the middle section 104 toward the corresponding side edge 103, and each chamfered section 105 has a guide arc surface 106 that engages with the corresponding side edge 103. The middle section 104 is disposed on the middle plate 10, and each chamfered section 105 and its corresponding side edge 103 are disposed on each side plate 20.

[0019] The end portion 102 is opposite to the connecting end portion 101 along a second axis Y perpendicular to the first axis X. The end portion 102 has a recessed portion 107 and two protruding portions 108 respectively disposed on both sides of the recessed portion 107 along the first axis X. The recessed portion 107 of the end portion 102 is inwardly concave arc shape, and the protruding portions 108 are outwardly convex arc shape. A first distance d1 from the protruding portion 108 to the connecting end portion 101 and perpendicular to the baseline L is greater than a second distance d2 from the recessed portion 107 to the connecting end portion 101 and perpendicular to the baseline L.

[0020] The side edge portion 103 is connected between the connecting end portion 101 and the end portion 102.

[0021] The middle plate 10 has two central connecting groups 11 located on both sides.

[0022] Each of the side plate members 20 has a side pivot connection group 21 that can pivotally connect with the corresponding central pivot connection group 11. The side plate members 20 are pivotally connected to both sides of the middle plate member 10 along the first axis X.

[0023] To further understand the effects of the combination of the components of this utility model, the technical means employed, and the expected results, the following explanation will be provided, which will hopefully lead to a deeper and more specific understanding of this utility model.

[0024] like Figure 1 and Figure 2As shown, when the seat 1 is unfolded and ready for seating, the protruding portion 108 supports the ischial tuberosities of the occupant, and the recessed portion 107 corresponds to the coccyx of the occupant. When the occupant sits on the seat 1, in addition to receiving stable support, the pressure on the coccyx is reduced, providing seating comfort.

[0025] For example Figure 3 As shown, by utilizing the design of the beveled shoulder section 105, the supporting area of ​​the outer portion corresponding to the beveled shoulder section 105 is reduced (e.g., Figure 3 (As shown by the dashed triangle in the image). The protruding portion 108 is also utilized (e.g., Figure 3 As shown in the grayscale area), the reduced support area on the outer side of the sloping shoulder section 105 is compensated, so the overall support area remains unchanged. Furthermore, the protruding portion 108 allows support to be provided to the ischium area (e.g., the area corresponding to the occupant's ischial tuberosity) of the rider. Figure 3 (Indicated by the black dots) to obtain a larger load-bearing area. And as... Figure 3 As shown by the imaginary line (dotted line), when a passenger sits on the seat 1 with their legs facing the outer part of the shoulder section 105, the shoulder section 105 can prevent interference with the passenger's thigh bone, making the ride more comfortable.

[0026] In addition, such as Figure 4 As shown, the side panels 20 are pivotally connected to both sides of the middle panel 10, and the chair seat 1 can be folded in accordance with the folded state of the support unit 3. That is to say, when the side panels 20 pivot relative to the middle panel 10 in an inverted U-shape and surround the periphery of the support unit 3, they can be used as a cane.

[0027] Therefore, by utilizing the shapes of the recessed portion 107 and the protruding portion 108 of the end portion 102, and the first distance d1 between the protruding portion 108 and the connecting end 101 and perpendicular to the baseline L is greater than the second distance d2 between the recessed portion 107 and the connecting end 101 and perpendicular to the baseline L, the overall seating area can be increased and the stability of the seating can be improved without increasing the overall weight of the seat 1.

[0028] Furthermore, such as Figure 2 As shown, by utilizing the chamfered shoulder section 105 of the connecting end 101, the discomfort of the occupant's thighs contacting the seat board 1 can be reduced when sitting.

[0029] In summary, the chair board 1 of the cane chair of this utility model has a simple overall structure and is easy to operate, and can indeed achieve the purpose of this utility model.

[0030] The above description is merely an embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the claims and description of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A chair seat for a cane chair, the cane chair further comprising a pivot unit and a support unit, the chair seat being slidably connected to the support unit, and the chair seat being able to switch between an unfolded state and a folded state, the chair seat being supported by the support unit when in the unfolded state, the chair seat comprising a connecting end portion and an end portion, characterized in that: The connecting end is defined as having a baseline extending along a first axial direction passing through it. The end portion is opposite to the connecting end portion along a second axis perpendicular to the first axis. The end portion has a recessed portion and two protruding portions respectively disposed on both sides of the recessed portion along the first axis. A first distance between the protruding portions and the connecting end portion and perpendicular to the baseline is greater than a second distance between the recessed portion and the connecting end portion and perpendicular to the baseline.

2. The chair seat of the cane chair according to claim 1, characterized in that: The recessed portion at the end is in the shape of an inwardly concave arc, and the protruding portion is in the shape of an outwardly convex arc.

3. The chair seat of the cane chair according to claim 2, characterized in that: The chair seat of the cane chair also includes two side edges connected between the connecting end and the end portion, and the connecting end has a middle section substantially parallel to the first axis, and two sloping shoulder sections connected between the middle section and the corresponding side edges, each sloping shoulder section gradually moving away from the baseline as it extends from the middle section toward the corresponding side edge.

4. The chair seat of the cane chair according to claim 3, characterized in that: Each of the chamfered sections at the connecting end has a guide arc surface that connects to the corresponding side edge.

5. The chair seat of the cane chair according to claim 4, characterized in that: The chair seat of the cane chair also includes a middle plate and two side plates pivotally connected to both sides of the middle plate along the first axis. The middle section is disposed on the middle plate, and each sloping shoulder section and its corresponding side edge are disposed on each side plate.

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