CN102240241A - Foldable wheelchair - Google Patents
Foldable wheelchair Download PDFInfo
- Publication number
- CN102240241A CN102240241A CN2010101695508A CN201010169550A CN102240241A CN 102240241 A CN102240241 A CN 102240241A CN 2010101695508 A CN2010101695508 A CN 2010101695508A CN 201010169550 A CN201010169550 A CN 201010169550A CN 102240241 A CN102240241 A CN 102240241A
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- Prior art keywords
- pair
- hole
- elasticity pearl
- connecting plate
- seat cushion
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Abstract
The invention provides a foldable wheelchair mainly comprising a pair of front legs, a pair of rear legs, a seat cushion main frame, a backrest, a double-turning mechanism and a pair of armrests, wherein a front turning mechanism is pivoted between the seat cushion main frame and the front legs, a rear turning mechanism is pivoted between the seat cushion main frame and the rear legs, the lower end of the double-turning mechanism is pivoted to the rear end of the seat cushion main frame, and the upper end of the double-turning mechanism is pivoted with the backrest; therefore, the pair of front legs and the front-turning mechanism are turned rearwards to be folded, the pair of rear legs and the rear-folding mechanism are turned forwards to be folded, and the backrest is finely angularly adjusted with respect to the double-folding mechanism and is turned forwards to be folded, so that the wheelchair is folded to reduce the size better.
Description
[technical field]
The present invention is relevant with wheelchair, more detailed it, especially refer to the rear foot to be transferred, forward foot in a step turnover, backrest fine setting angle of inclination or backrest turnover do whole folding, to reduce a kind of wheelchair of amounting to of collection, transportation and packaging volume.
[background technology]
Traditional wheelchair, medichair or bath chair etc., handicapped people is provided, a convenient means, as shown in Figure 1, traditional wheelchair 10 has a pair of forward foot in a step 11, a pair of rear foot 12, a seat cushion 13 and a back 14, and there is wheel 111 forward foot in a step 11 belows, also there is wheel 121 (bull wheel or steamboat) rear foot 12 belows, these traditional wheelchair 10 its structures are normally fixed, can't fold, and too take up space during collection;
So, the dealer makes again to increase the structure that folds, and two forward foot in a step and two rear feet can middlely in the past be drawn close side by side, and wheelchair can be folded, to reduce the volume of collection transportation and packing, this draws close the mode of folding and prolongs usefulness for a long time toward centre, right just with reduced width, the wheelchair height does not lower, volume is still tall and big, when collection transportation and packing, volume is still big, has many puzzlements to produce.
[summary of the invention]
The object of the present invention is to provide a kind of wheelchair of amounting to, fold folding so that the forward foot in a step can turn round, the rear foot can be transferred forward; Make the backrest folding of can transferring forward, make wheelchair do to amount to, more reduced volume; Make backrest do the fine setting inclination angle.
A kind of wheelchair of amounting to of the present invention mainly has:
The a pair of forward foot in a step is provided with several front rods and combines, and forward foot in a step below is provided with front-wheel, has a preceding mechanism that transfers to be articulated in a seat cushion body frame front end;
The a pair of rear foot is provided with several back links and combines, and rear foot below is provided with trailing wheel, has a back turnover mechanism to be articulated in a seat cushion body frame rear end;
One seat cushion body frame articulates for a pair of forward foot in a step and a pair of rear foot;
A pair of turnover mechanism, lower ending pivot is connected to seat cushion body frame rear end, and a upper end and a backrest are articulated;
One backrest, backrest is articulated with two mechanisms that transfer, and can finely tune angle;
Pair of armrests is articulated in backrest, can do turnover and fold.
In view of the above, this turns round and folds folding the forward foot in a step mechanism that transferred in the past, and this is to the rear foot mechanism's folding of transferring forward of transferring later on, and this backrest makes the fine setting angle with two turnover mechanism, and the folding of transferring forward, the wheelchair work is amounted to, more reduced volume.
Wherein, turnover mechanism comprises preceding driving rod, axis hole and the preceding elasticity pearl of a pair of preceding pivot connecting plate and the seat cushion body frame of the forward foot in a step before being somebody's turn to do, a pivoted hole and a prelocalization hole before preceding pivot connecting plate has one, preceding driving rod is gone into axis hole, driving rod was articulated with this preceding pivoted hole in the past, and preceding elasticity pearl is embedded in the prelocalization hole, in this preceding elasticity pearl shell fragment is arranged, so that should have elastic restoring force by preceding elasticity pearl.
Wherein, this back turnover mechanism comprises back driving rod, axis hole and the back elasticity pearl of a back pivot connecting plate and the seat cushion body frame of the rear foot, back pivot connecting plate has a back pivoted hole and a back locating hole, back driving rod is gone into axis hole, driving rod and this back pivoted hole are articulated later on, then the elasticity pearl is embedded in the back locating hole, in this back elasticity pearl shell fragment is arranged, so that this back elasticity pearl has elastic restoring force.
Wherein, the lower end of this pair turnover mechanism comprises the driving rod and the elasticity pearl of a pair of pivot connecting plate down and seat cushion body frame, following pivot connecting plate has pivoted hole and once locating hole, be articulated with driving rod and this time pivoted hole, and the elasticity pearl is embedded in down locating hole, in this elasticity pearl shell fragment is arranged, so that this elasticity pearl has elastic restoring force.
Wherein, the upper end of this pair turnover mechanism has an a pair of shaft-pivot hole and the clipping block on the pivot connecting plate, of going up, the backrest bottom is a ratchet and a perforation, penetrate shaft-pivot hole and perforation with a jack-post, clipping block is positioned at pivot connecting plate on two, drive clipping block with a double-screw bolt, double-screw bolt is incorporated in the upper end of two mechanisms that transfer, and makes displacement double-screw bolt drive clipping block and whether makes the interior ratchet of clip.
Wherein, this back turnover mechanism comprises back driving rod, clamping pole and the back elasticity pearl of a pair of back pivot connecting plate and the seat cushion body frame of the rear foot, back pivot connecting plate has the clamping groove and a back locating hole of a back pivoted hole, a bent arc, driving rod and this back pivoted hole are articulated later on, clamping pole snaps in the clamping groove, then the elasticity pearl is embedded in the back locating hole, in this back elasticity pearl shell fragment is arranged, so that this back elasticity pearl has elastic restoring force.
Wherein, there is a connecting rod in this pair turnover mechanism.
A kind of wheelchair of amounting to of the present invention, its advantage and effect are: the present invention can make the forward foot in a step turn round and fold folding, and the rear foot can be transferred forward; Make the backrest folding of can transferring forward, make wheelchair do to amount to; Make backrest do the fine setting inclination angle.Thereby make this amount to wheelchair volume is significantly dwindled, can significantly dwindle its height, can and collect in transportation, packing, more convenient.
[description of drawings]
Fig. 1 is the schematic perspective view of known wheelchair.
Fig. 2 is a perspective exploded view of the present invention.
Fig. 3 is a three-dimensional combination sketch map of the present invention.
Fig. 4 is a floor map of the present invention.
Fig. 5 is the clipping block of the two turnover of the present invention mechanisms and the ratchet generalized section of clip mutually.
Fig. 6 breaks away from the generalized section of ratchet for the clipping block of the two turnover of the present invention mechanism.
Fig. 7 adjusts the floor map of backrest angle for the present invention.
Fig. 8 is the preceding elasticity pearl of turnover mechanism and the generalized section of shell fragment before the present invention.
Fig. 9 is the floor map of turnover mechanism turnover before the present invention.
Figure 10 is the floor map of turnover mechanism turnover behind the present invention.
Figure 11 is the floor map of the two turnover of the present invention mechanism lower end turnover.
The floor map that Figure 12 finishes for folding of the present invention.
Figure 13 is the floor map of bull wheel for trailing wheel of the present invention.
When Figure 14 is bull wheel for trailing wheel of the present invention, the floor map that folding finishes.
Figure 15 is the floor map of turnover second embodiment of mechanism behind the present invention.
Figure 16 is the floor map of turnover second embodiment of mechanism turnover behind the present invention.
Concrete label is as follows among the figure:
20 wheelchairs, 21 forward foot in a step, 22 rear feet
23 seat cushion body frames, 24 backrests, 25 handrails
28 pairs of turnover mechanism 211 front rods, 212 front-wheels
Pivoted hole 263 prelocalization holes before the elasticity pearl 262 before 232
233 axis holes, 2321 shell fragments, 221 back links
222 trailing wheels, 27 back turnover mechanisms, 271 back pivot connecting plates
272 back driving rods, 274 axis holes, 275 back pivoted holes
281 times pivot connecting plates of 276 back locating hole 280 connecting rods
285 times locating hole 282 driving rods of 284 times pivoted holes
Shaft-pivot hole on the pivot connecting plate 287 on the 283 elasticity pearls 286
242 perforation of 288 clipping blocks, 241 ratchets
289 jack-posts, 242 perforation, 2881 double-screw bolts
222a trailing wheel 277 clamping grooves 278 clamping poles
273 back elasticity pearls
[specific embodiment]
Below in conjunction with accompanying drawing, technical scheme of the present invention is described further.
At first, a kind of wheelchair of amounting to of the present invention, shown in Fig. 2 to 9, wheelchair 20 mainly has a pair of forward foot in a step 21, the a pair of rear foot 22, one seat cushion body frame 23, one backrest 24, pair of armrests 25 and a pair of turnover mechanism 28, this seat cushion body frame 23 is the square framework, can locate the urinating and defecating an of soft cushion or medical treatment on it with seat cushion (figure do not show), articulate a pair of forward foot in a step 21 in seat cushion body frame 23 front ends, this has two front rods 211 to combine to the forward foot in a step 21, the forward foot in a step 21 belows are provided with front-wheel 212, the front end that has the mechanism 26 that transfers before to be positioned at the forward foot in a step 21 tops and seat cushion body frame 23 is articulated (as Fig. 2,8, shown in 9), should before turnover mechanism 26 comprise a pair of before pivot connecting plate 261 and seat cushion body frame 23 preceding driving rod 231 and before elasticity pearl 232, a pivoted hole 262 and a prelocalization hole 263 before preceding pivot connecting plate 261 has one, preceding driving rod 231 directly penetrates the axis hole 233 that is positioned the forward foot in a step 23 front ends, driving rod 231 was articulated with this preceding pivoted hole 262 in the past, and preceding elasticity pearl 232 is embedded in prelocalization hole 263, should in the preceding elasticity pearl 232 shell fragment 2321 (as shown in Figure 8) be arranged, so that should after pushing, have elastic restoring force by preceding elasticity pearl 232, through pushing this preceding elasticity pearl 232, can transfer this forward foot in a step 21 backward (interior) contract, the forward foot in a step 21 can be made flexible height (for general technology);
The a pair of rear foot 22, be positioned at seat cushion body frame 23 back lower places, the rear foot 22 width are greater than the width of the forward foot in a step 21, make that this rear foot 22 staggers mutually with the forward foot in a step 21 when folding, collapsible separately and do not collide, this has one to two back link 221 to combine to the rear foot 22, the below is provided with trailing wheel 222, trailing wheel 222 can be steamboat or bull wheel (present embodiment is a steamboat), be positioned at seat cushion body frame 23 rears and the rear foot 22 upper end (Fig. 2 with a back turnover mechanism 27, shown in 10), back turnover mechanism 27 comprises a back pivot connecting plate 271 of the rear foot 22 and the back driving rod 272 of seat cushion body frame 23, axis hole 274 and back elasticity pearl 273, back driving rod 272 is gone in the axis hole 274, back pivot connecting plate 271 has a back pivoted hole 275 and a back locating hole 276, driving rod 272 is articulated with this back pivoted hole 275 later on, then elasticity pearl 273 is embedded in back locating hole 276, in this back elasticity pearl 273 shell fragment is arranged, so that this back elasticity pearl 273 has elastic restoring force (with shell fragment 2321 isostructures of the above-mentioned preceding mechanism 26 that transfers), elasticity pearl 273 after pushing this, can transfer this rear foot 22 forward (interior) contract, the rear foot 22 is the same can make flexible height (for general technology);
A pair of turnover mechanism 28 is (as Fig. 2, shown in 11), for last, following two has the device of turnover, there is a connecting rod 280 in two turnover mechanism 28, make the bilateral two turnover mechanism 28 can synchronization action, this pair turnover mechanism 28 lower ending pivots are connected to seat cushion body frame 23 rear ends, the upper end is articulated with backrest 24, two lower ends of transferring mechanism 28 comprise the driving rod 282 and the elasticity pearl 283 of a pair of pivot connecting plate 281 down and seat cushion body frame 23, following pivot connecting plate 281 has pivoted hole 284 and once locating hole 285, be articulated with driving rod 282 and this time pivoted hole 284, and elasticity pearl 283 is embedded in down locating hole 285, in this elasticity pearl 283 shell fragment is arranged, so that this elasticity pearl 283 have elastic restoring force (with above-mentioned before the turnover mechanism 26 shell fragment 2321 isostructures), through pushing this elasticity pearl 283, can transfer this pair turnover mechanism 28 forward (interior) contract;
As Fig. 2,5, shown in 6, two upper ends of transferring mechanism 28 have a pair of pivot connecting plate 286 of going up, a shaft-pivot hole 287 and a clipping block 288 on one, backrest 24 is the inverted U bar, backrest 24 bottoms are a ratchet 241 and a perforation 242, penetrate two the transfer last shaft-pivot hole 287 of mechanism 28 and the perforation 242 of backrest 24 with a jack-post 289, clipping block 288 is positioned at pivot connecting plate 286 on two, (double-screw bolt 2881 penetrates clipping block 288 to drive clipping block 288 with a double-screw bolt 2881, and can in two turnover mechanisms 28 on do the front and back displacement in the pivot connecting plate 286), make displacement double-screw bolt 2881 and whether drive interior ratchet 241 that clipping blocks 288 make clip backrest 24, and then the angle of inclination of do fine setting backrest 24, finely tuned the angle of backrest 24 forward or backward, the both sides of backrest 24 respectively articulate handrail 25, handrail 25 can be done turnover and fold, and handrail 25 is done to transfer to fold to be general known techniques;
By above-mentioned structural grouping, a kind of wheelchair of amounting to of the present invention, when operation is amounted to, be earlier preceding preceding elasticity pearl 232 of transferring mechanism 26 to be pushed, contract in the elasticity pearl 232 before making and break away from the prelocalization hole 263 of the forward foot in a step 21, this forward foot in a step 21 can be the center according to preceding driving rod 231, and fold backward, push the back elasticity pearl 273 of back turnover mechanism 27 again and push, make and contract in the back elasticity pearl 273 and break away from the prelocalization hole 276 of the rear foot 22, this rear foot 22 can according to after driving rod 272 be the center, and fold forward, after the forward foot in a step 21 is folded, fold the rear foot 22 again, the rear foot 22 is overlapped in the forward foot in a step 21;
In addition handrail 25 is upwards steeved, approximately with backrest 24 same parallel positions, pushing two back elasticity pearls 273 of transferring mechanism 27 again pushes, make the following locating hole 285 that contracts in the elasticity pearl 283 and break away from two mechanisms 27 that transfer, this backrest 24 and two mechanisms 27 that transfer can be the center according to the driving rod 282 of seat cushion body frame 23, and fold forward, backrest 24 and two mechanism 27 that transfers are slightly are parallel to seat cushion body frame 23 (as shown in figure 12), fold action and finish, reduce volume, become minimum volume state;
Two turnover mechanism 27 does not singly make backrest 24 be transferred forward, in the inclination angle that can make inching backrest 24 at ordinary times, during use shown in Fig. 5,6, withdraw to adjust double-screw bolt 2881, drive clipping block 288 and wouldn't blocking be somebody's turn to do interior ratchet 241, finely tuned the angle of inclination of backrest 24 this moment, behind to be adjusted the finishing, screwed double-screw bolt 2881 again, driven the interior ratchet 241 that clipping block 288 is made clip backrest 24, made this inclination angle, backrest 24 location;
As shown in figure 13, be that the trailing wheel 222a with the rear foot 22 is implemented as the bull wheel state, during its folding (as shown in figure 14) same as described above fully;
Shown in Figure 15,16, relevant again this back turnover mechanism 27, second embodiment is the clamping groove 277 that can set up a bent arc in a back pivot connecting plate 271 of the rear foot 22, seat cushion body frame 23 is set up a clamping pole 278, when launching, the rear foot 22 snaps into back locating hole 276 except back elasticity pearl 273, this clamping pole 278 also snaps in the clamping groove 277, to increase supporting construction;
The present invention can have excellent power glue (elastic gum) with two turnover mechanism 28 each device in preceding turnover mechanism 26, back turnover mechanism 27, makes the effect of taking advantage of a person that damping is arranged.
Claims (7)
1. amount to wheelchair for one kind, it is characterized in that: this is amounted to wheelchair and mainly has:
The a pair of forward foot in a step is provided with several front rods and combines, and forward foot in a step below is provided with front-wheel, has a preceding mechanism that transfers to be articulated in a seat cushion body frame front end;
The a pair of rear foot is provided with several back links and combines, and the below is provided with trailing wheel, has a back turnover mechanism to be articulated in a seat cushion body frame rear end;
One seat cushion body frame articulates for a pair of forward foot in a step and a pair of rear foot;
A pair of turnover mechanism, lower ending pivot is connected to seat cushion body frame rear end, and a upper end and a backrest are articulated;
One backrest, backrest is articulated with two mechanisms that transfer, and can finely tune angle;
Pair of armrests is articulated in backrest, can do turnover and fold;
This turns round and folds folding the forward foot in a step mechanism that transferred in the past, and this is to the rear foot mechanism's folding of transferring forward of transferring later on, and this backrest makes the fine setting angle with two turnover mechanism, and the folding of transferring forward, and the wheelchair work is amounted to.
2. the wheelchair of amounting to according to claim 1, it is characterized in that: turnover mechanism comprises preceding driving rod, axis hole and the preceding elasticity pearl of a pair of preceding pivot connecting plate and the seat cushion body frame of the forward foot in a step before this, a pivoted hole and a prelocalization hole before preceding pivot connecting plate has one, preceding driving rod is gone into axis hole, driving rod was articulated with this preceding pivoted hole in the past, and preceding elasticity pearl is embedded in the prelocalization hole, in this preceding elasticity pearl shell fragment is arranged, so that should have elastic restoring force by preceding elasticity pearl.
3. the wheelchair of amounting to according to claim 1, it is characterized in that: this back turnover mechanism comprises back driving rod, axis hole and the back elasticity pearl of a back pivot connecting plate and the seat cushion body frame of the rear foot, back pivot connecting plate has a back pivoted hole and a back locating hole, back driving rod is gone into axis hole, driving rod and this back pivoted hole are articulated later on, then the elasticity pearl is embedded in the back locating hole, in this back elasticity pearl shell fragment is arranged, so that this back elasticity pearl has elastic restoring force.
4. the wheelchair of amounting to according to claim 1, it is characterized in that: the lower end of this pair turnover mechanism comprises the driving rod and the elasticity pearl of a pair of pivot connecting plate down and seat cushion body frame, following pivot connecting plate has pivoted hole and once locating hole, be articulated with driving rod and this time pivoted hole, and the elasticity pearl is embedded in down locating hole, in this elasticity pearl shell fragment is arranged, so that this elasticity pearl has elastic restoring force.
5. the wheelchair of amounting to according to claim 1, it is characterized in that: the upper end of this pair turnover mechanism has an a pair of shaft-pivot hole and the clipping block on the pivot connecting plate, of going up, the backrest bottom is a ratchet and a perforation, penetrate shaft-pivot hole and perforation with a jack-post, clipping block is positioned at pivot connecting plate on two, drive clipping block with a double-screw bolt, double-screw bolt is incorporated in the upper end of two mechanisms that transfer, and makes displacement double-screw bolt drive clipping block and whether makes the interior ratchet of clip.
6. the wheelchair of amounting to according to claim 1, it is characterized in that: this back turnover mechanism comprises back driving rod, clamping pole and the back elasticity pearl of a pair of back pivot connecting plate and the seat cushion body frame of the rear foot, back pivot connecting plate has the clamping groove and a back locating hole of a back pivoted hole, a bent arc, driving rod and this back pivoted hole are articulated later on, clamping pole snaps in the clamping groove, then the elasticity pearl is embedded in the back locating hole, in this back elasticity pearl shell fragment is arranged, so that this back elasticity pearl has elastic restoring force.
7. the wheelchair of amounting to according to claim 1 is characterized in that: there is a connecting rod in this pair turnover mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101695508A CN102240241A (en) | 2010-05-12 | 2010-05-12 | Foldable wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101695508A CN102240241A (en) | 2010-05-12 | 2010-05-12 | Foldable wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102240241A true CN102240241A (en) | 2011-11-16 |
Family
ID=44958612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101695508A Pending CN102240241A (en) | 2010-05-12 | 2010-05-12 | Foldable wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102240241A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI626038B (en) * | 2017-01-03 | 2018-06-11 | Foldable wheelchair | |
| CN109248031A (en) * | 2017-07-13 | 2019-01-22 | 刘国祯 | Improvement type wheelchair |
| CN111991151A (en) * | 2020-09-08 | 2020-11-27 | 刘欣荣 | Movable emergency midwifery department device for obstetrical department |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2000875A (en) * | 1932-10-24 | 1935-05-07 | B W S Company Ltd | Child's folding push-chair |
| US2170227A (en) * | 1938-10-01 | 1939-08-22 | Weber Ernst | Collapsible baby carriage |
| US3889963A (en) * | 1972-08-17 | 1975-06-17 | Brattgard Sven Olof | Chair provided with wheels |
| US4763911A (en) * | 1986-12-09 | 1988-08-16 | Gerico, Inc. | Foldable baby carriage |
| US4834403A (en) * | 1987-10-30 | 1989-05-30 | Yanus Theodore M | Combined infant car-seat and stroller |
-
2010
- 2010-05-12 CN CN2010101695508A patent/CN102240241A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2000875A (en) * | 1932-10-24 | 1935-05-07 | B W S Company Ltd | Child's folding push-chair |
| US2170227A (en) * | 1938-10-01 | 1939-08-22 | Weber Ernst | Collapsible baby carriage |
| US3889963A (en) * | 1972-08-17 | 1975-06-17 | Brattgard Sven Olof | Chair provided with wheels |
| US4763911A (en) * | 1986-12-09 | 1988-08-16 | Gerico, Inc. | Foldable baby carriage |
| US4834403A (en) * | 1987-10-30 | 1989-05-30 | Yanus Theodore M | Combined infant car-seat and stroller |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI626038B (en) * | 2017-01-03 | 2018-06-11 | Foldable wheelchair | |
| CN109248031A (en) * | 2017-07-13 | 2019-01-22 | 刘国祯 | Improvement type wheelchair |
| CN111991151A (en) * | 2020-09-08 | 2020-11-27 | 刘欣荣 | Movable emergency midwifery department device for obstetrical department |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111116 |