CN2744330Y

CN2744330Y - Foldable chair frame structure of wheelchair

Info

Publication number: CN2744330Y
Application number: CN 200420117091
Authority: CN
Inventors: 萧咏绅
Original assignee: KANGYANG CO Ltd
Current assignee: KANGYANG CO Ltd
Priority date: 2004-11-17
Filing date: 2004-11-17
Publication date: 2005-12-07
Anticipated expiration: 2014-11-17

Abstract

The utility model concerns a foldable chair frame structure of wheelchair, comprising two-side racks and a folding rack. Wherein a chair back pole and a chair seat pole are arranged on the two-side racks, and the folding rack for strutting the two-side racks is positioned between the two-side racks; a cushion pole is equipped on the folding rack. When the folding rack opens, the cushion pole leans against the chair seat pole of the two-side racks, and the cushion pole of the folding rack near the chair back pole forms an arch concave segment, which subsequently goes forwards to form an arch convex segment; a riding zone and a supporting zone are formed respectively by the arch concave segment and the arch convex segment, completely supporting the buttocks and the thighs of a rider. The design of the wheelchair frame is in conformity with the structure of the human body.

Description

The chair shelf structure of folding wheelchair

Technical field

This utility model is the chair shelf structure about a kind of folding wheelchair, and You Zhiyi meets ergonomics, for the wheelchair chair frame designer of ride comfort.

Background technology

Press, in the at present common collapsible Wheelchair structure, be have as shown in Figure 4 a kind of, its framework mainly is to comprise two chair frame A, folded frame B, two seat cushion bar C, wherein, be to be articulated with one group of folded frame B that forms with the pivot joint of two connecting rod B1 intersection between two side chair frame A of wheelchair, in order to do the chair frame A that supports two sides with pivot joint, and in the upper end of connecting rod B hinging base lining bar C, and in chair frame A go up relative seat cushion bar C and extend several pieces support sheet A1 admittedly, with when the parallel vertically-arranged of two side chair frame A is opened up in folded frame B support, seat cushion bar C on it is suitable supported by folded frame B and abuts against in supporting admittedly on the sheet A1 that chair frame A is extended, firmly support to arrive in seat cushion bar C in order to do the sheet A1 that supports admittedly on this chair frame A, take more firmly comfortable with order.

Though detailed see above-mentioned conventional construction have one can reduced advantage, but under reality is used, be not difficult to realize that it has remained a little weak point in fact, mainly be because of this seat cushion bar be to be made as the straight body of rod, when wearing seat cushion cloth, the seat cushion cloth that it wore also can form a straight seat surface in the future.

And when the occupant takes on it for a long time, usually feel under the weather easily and can't sitting, mainly be the weight that need support the whole upper part of the body because of the human buttock, so with regard to also inequality on the distribution of weight of buttocks and thigh; Yet, the seat cushion of this structure is to be made as surface plate, when buttocks and thigh are placed on the planar seat cushion simultaneously, usually only concentrate on curve than on the curved buttocks of arc because of above the waist weight, and following in long-time sitting, buttocks is paralysis and not feeling well easily, so this kind structure and do not meet ergonomics.

The utility model content

This utility model provides a kind of wheelchair chair that meets ergonomics and sets up meter, takes the chair shelf structure of more comfortable folding wheelchair with order.

For achieving the above object, solution of the present utility model is: the chair shelf structure of folding wheelchair, be to comprise two bogie side frames and folded frame, two bogie side frames are to establish tool chair back bar and seat support bar, and between two bogie side frames, be provided with and intersect pivot with two connecting rods and connect the folded frame that forms, in order to do support two bogie side frames with pivot joint, and the small end portion in folded frame is provided with the seat cushion bar, this seat cushion bar is supported by folded frame and abut against on the seat support bar of bogie side frame, wherein the nearly chair back bar of the seat cushion bar place of folded frame is that arc is recessed into recessed section of type arc, and continues recessed section of this arc and extend to form arc section forward.

Be the pivot joint block that is provided with the tool socket between this chair back bar and seat support bar, and be relative pivot joint block and being provided with on the seat support bar to make the seat cushion bar put piece by the holding of tool recess of putting on it when the folded frame support exhibition.

After adopting such scheme, when seat cushion cloth is nested with it in the future, can constitutes respectively to take and distinguish and the Support, in order to do buttocks and thigh to support the occupant fully by recessed section of this arc and arc section.This seat cushion bar is owing to comply with human body lower part of the body curve and molding, so when taking, recessed section of the arc of this seat cushion bar will form a district of taking that can support buttocks, arc section then forms the Support that can support thigh, thus, this takes the district can abut against buttocks and thigh in the occupant fully with the Support, and make the occupant be able to more comfortable and firm taking on it.

Description of drawings

Fig. 1 is a three-dimensional exploded view of the present utility model;

Fig. 2 is a three-dimensional combination sketch map of the present utility model;

Fig. 3 is a user mode reference diagram of the present utility model;

Fig. 4 is a perspective view of commonly using structure.

Symbol description

1 bogie side frame, 11 chair back bars

12 bars, 13 pivot joint blocks

131 sockets, 14 seat support bars

141 recesses 142 are held and are put piece

15 bottom bars, 16 poles

2 folded frames, 21 connecting rods

211 collars, 22 seat cushion bars

Recessed section 222 arc section of 221 arcs

23 support chips, 231 locating rings

3 seat cushion cloth 31 are taken the district

32 Support

A chair frame A1 supports sheet admittedly

B folded frame B1 connecting rod

The Building C lining bar

The specific embodiment

As shown in Figure 1, this utility model is to comprise two bogie side frames 1 and folded frame 2, wherein:

Two bogie side frames 1, it is to establish tool chair back bar 11, bar 12, pivot joint block 13, seat support bar 14, bottom bar 15 and pole 16, this bar 12 is to be hubbed on the chair back bar 11, and chair back bar 11 is to see through pivot joint block 13 to be connected seat support bar 14 and bottom bar 15, and establishes tool pole 16 with the usefulness as reinforcement in seat support bar 14 and bottom bar 15 ends; Again, pivot joint block 13 tops are that indent forms socket 131, and on seat support bar 14 socket 131 of this pivot joint block 13 and be installed with holding of a tool recess 141 and put piece 142 relatively;

One folded frame 2, it is to adopt the 21 mutual intersection pivot joints of two connecting rods to form, the bottom of two connecting rods 21 is to form a collar 211, the top of two connecting rods 21 then is installed with a seat cushion bar 22, this seat cushion bar 22 is that arc is recessed into recessed section 221 of type arc, and continues recessed section 221 of this arc and extend to form arc section 222 forward, and two support chips 23 that are pivoted on 21 on two connecting rods, these support chip 23 1 ends are to be hubbed on two connecting rods 21, and the other end then forms a locating ring 231;

Borrow it, when group is established, be to make folded frame 2 overlap pivot respectively on the bottom bar 15 and seat support bar 14 of two bogie side frames 1 with the collar 211 of its connecting rod 21 bottoms and the locating ring 231 of support chip 23, in order to do opening up or fold with the support of controlling two bogie side frames 1, at last, making bottom bar 15 and seat support bar 14 connect to establish with pivot joint block 13 respectively again forms.

When two connecting rods 21 of folded frame 2 support, to make two bogie side frames 1 be able to the support exhibition, seat cushion bar 22 2 ends on this folded frame 2 are suitable abuts against on two bogie side frames, 1 pivot joint block 13 socket 131 with hold location on the recess 141 of putting piece 142, in order to do to make two bogie side frames 1 firmly be supportted exhibition.

Because the seat cushion bar 22 on this folded frame 2 self is promptly established the tool arc recessed section 221 and arc section 222, as shown in Figure 2, so after wearing seat cushion cloth 3, to form taking of an indent in recessed section 221 place of the arc on the seat cushion bar 22 and distinguish 31, and in the slightly protruding Support 32 of formation, arc section 222 places, with when occupant is on it, as shown in Figure 3, this seat cushion cloth 3 is cooked up and is taken district 31 and Support 32 and will carry over occupant's buttocks and thigh and fit fully and abut against, and supported occupant's buttocks and thigh fully, in order to do to disperse human body weight, make the design of this wheelchair meet the design of ergonomics.

In addition, distinguishing 31 owing to taking of seat cushion cloth 3 is that the arc of complying with seat cushion bar 22 forms slightly recess for recessed section 221, so it is firm wherein ccontaining to supply occupant's buttocks be able to, and is unlikely to slippage in the middle of wheelchair is carried out, in order to do feel more safe and comfortable person with modern occupant.

In sum, the chair shelf structure of folding wheelchair provided by the utility model, its structure meets ergonomics, can make occupant comfort take on it, differs from the design of commonly seeing in fact, has conformed with novel relevant important document really, and file an application in the whence in accordance with the law.

Claims

1, a kind of chair shelf structure of folding wheelchair, be to comprise two bogie side frames and folded frame, wherein, two bogie side frames are to establish tool chair back bar and seat support bar, and between two bogie side frames, be provided with and intersect pivot with two connecting rods and connect the folded frame that forms, in order to do supporting two bogie side frames with pivot joint, and the seat cushion bar is set in the small end portion of folded frame, this seat cushion bar is supported by folded frame and abut against on the seat support bar of bogie side frame, it is characterized in that:

The nearly chair back bar of the seat cushion bar place of folded frame is that arc is recessed into recessed section of type arc, and continues recessed section of this arc and extend to form arc section forward.

2, the chair shelf structure of folding wheelchair as claimed in claim 1, it is characterized in that: be the pivot joint block that is provided with the tool socket between this chair back bar and seat support bar, and be relative pivot joint block and being provided with on the seat support bar to make the seat cushion bar put piece by the holding of tool recess of putting on it when the folded frame support exhibition.