CN104162234A - Foldable wheelchair - Google Patents
Foldable wheelchair Download PDFInfo
- Publication number
- CN104162234A CN104162234A CN201410347226.9A CN201410347226A CN104162234A CN 104162234 A CN104162234 A CN 104162234A CN 201410347226 A CN201410347226 A CN 201410347226A CN 104162234 A CN104162234 A CN 104162234A
- Authority
- CN
- China
- Prior art keywords
- unit
- frame
- side frame
- bogie side
- toggle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
Disclosed is a foldable wheelchair which includes a support unit, a pair of rotating wheels, a pair of front jockey wheels, a toggle unit and a seat unit. The toggle unit is provided with a pair of elbow frames pivoted between a pair of side supports of the support unit. Each elbow frame is formed through gradual downward inclined extension of a rear side of a corresponding side support towards a front side. The toggle unit can be in a folded state from an unfolding state through operation. When the seat unit is installed between the side supports, the toggle unit is in an unfolded state and cannot be folded and when the seat unit is detached from the side supports, the toggle unit can be folded. Therefore, an objective of simple members, easy folding and excellent rigidness can be achieved.
Description
Technical field
The present invention relates to a kind of movement assist device material, particularly relate to a kind of fully collapsible invalid's chair.
Background technology
Existing a kind of foldable wheelchair (US 3,758,150 Patent Cases), between the bottom of two body side frames, to be articulated with a lower toggle part, top and opposite rear end place at this body side frame are also articulated with toggle part on, in addition, between the top of the body side frame corresponding to this lower toggle part, be covered with a fabric seat, between the body side frame below this fabric seat, be articulated with again the connecting rod of a pair of mutual pivot joint.
Utilize described connecting rod relatively to launch, and this lower toggle part, on this, toggle part is expansion shape, can make this wheelchair be the deployed condition that can take.When operation described connecting rod relatively amount to, and by this lower toggle part, on this, the folding of toggle part is involutory shape, can make this wheelchair folding become smaller size smaller state.
Although this wheelchair has folding function, but because provide the member of folder function many, complex structure, in the time will carrying out folding or launch, operator will be respectively to this lower toggle part, on this, toggle part and described connecting rod operate, in operation, also quite bother and be not easy.
In addition, another kind of wheelchair (US 6,311,999 Patent Cases) does not have folding function, it utilizes horizontal spindle pipe and steps on frame and connects two inverted L shape bogie side frames, produce a high rigidity simple structure again, it proposes the existing wheelchair with folder function, because the pivoting point of position fold mechanism too much can affect the rigidity of supporting construction, with existing US 3, the disclosed foldable wheelchair of 758,150 Patent Case, has this phenomenon really.
Summary of the invention
The object of the present invention is to provide a kind of simple in structure, processing ease and the good fully collapsible invalid's chair of integral rigidity.
Fully collapsible invalid's chair of the present invention, comprise a support unit, pair of turning wheels, a pair of front jocket wheel, a toggle unit and a seat unit, this support unit has a pair of bogie side frame, described bogie side frame respectively has a front end and a rear end in contrast to this front end, described runner is located in respectively described bogie side frame, described front jocket wheel is located in respectively described bogie side frame, this toggle unit is articulated between the described bogie side frame of this support unit, and there is the elbow frame of a pair of mutual pivot joint, described elbow frame respectively has a front side corresponding to described front end, a rear side corresponding to described rear end, one with the side edge part of corresponding bogie side frame pivot joint and one in contrast to this side edge part and with the connecting portion of the mutual pivot joint of another elbow frame, described elbow frame is by the downward-sloping extension gradually towards described front side of described rear side, this toggle unit can be by a side edge part that makes described elbow frame deployed condition away from each other, operation is a side edge part folding state for convergence each other that makes described elbow frame, this seat unit, can dismantle and be installed on the described bogie side frame of this support unit, and comprise a seat board with fixing contour shape, in the time that this seat unit is installed between described bogie side frame, this toggle unit is deployed condition and can not folding, when this seat unit is in the time that described bogie side frame is separated, this toggle unit can folding.
Fully collapsible invalid's chair of the present invention, the described bogie side frame of this support unit also respectively has the main body of a described rear end of correspondence, body frame bar that is connected in this main body and one and is connected in the cantilever of this main body, described runner is located in respectively described main body, and described front jocket wheel is located at respectively described cantilever.
Fully collapsible invalid's chair of the present invention, the described bogie side frame of this support unit also respectively has a front axle bed of being located at described front end and one is located at the rear axle bed of described main body, this rear axle bed has an axis hole along an axis setting and one and is radially communicated with the stopper slot that is arranged at this axis hole outside, this axis is inclined to set, and by this rear end towards the downward-sloping extension gradually of this front end, this stopper slot has one first gear end and one and is interval in around this axis the second gear end of this first gear end, the described elbow frame of this toggle unit also respectively has one and is located at this side edge part and is located at this side edge part and is arranged in the rear pivot in corresponding rear axis hole corresponding to the front pivot of the front end of described bogie side frame and one, described rear pivot respectively has one can be sheathed on respectively the block piece in described stopper slot, this toggle unit is in the time of deployed condition, described block piece is positioned respectively described the first gear end, this toggle unit is in the time of folding state, described block piece is positioned respectively described the second gear end.
Fully collapsible invalid's chair of the present invention, this toggle unit also has a bearing pin being located between described connecting portion, and the connecting portion of one of them elbow frame has a sliding surface around this bearing pin outside and one and is arranged at the wherein spacing lateral margin of one end of this sliding surface, the connecting portion of another elbow frame have one can be for this spacing lateral margin the abutment face against location.
Fully collapsible invalid's chair of the present invention, also comprise a pair of armrest unit that is installed on this support unit, described armrest unit respectively has an energy adjustment and is installed on the location-plate of the rear end of described bogie side frame, backup plate that is connected in this location-plate and energy are fixed on this location-plate the locking piece of this main body, described location-plate respectively has the pivot joint end and the swing end in contrast to this pivot joint end that are articulated in this body frame bar, this toggle unit is in the time of deployed condition, described backup plate is arranged at respectively described runner top, this toggle unit is in the time of folding state, operate this locking piece and make described location-plate produce and swing with respect to this main body, the downward sedimentation of described backup plate.
Fully collapsible invalid's chair of the present invention, the location-plate of described armrest unit also respectively has one and is circular-arc guide groove around this pivot joint end, several inlay card grooves that are communicated in this guide groove and are hole enlargement shape, described locking piece respectively has one and is locked in described main body and passes in the fixed part of described guide groove, one is sheathed on blocking part and the spring being installed between this fixed part and this blocking part of this fixed part, this spring has perseverance makes this blocking part be nested in the potential energy in any one inlay card groove, operate this blocking part shifts out in corresponding inlay card groove, can make described location-plate produce and swing with respect to described main body.
Fully collapsible invalid's chair of the present invention, when this toggle unit is positioned at this deployed condition, has an angle between 20～70 degree between described elbow frame and a horizontal plane.
Fully collapsible invalid's chair of the present invention, this support unit also has a pair of pedal that is articulated in respectively described bogie side frame, and described pedal is articulated in the front end of described bogie side frame, and described pedal can be manipulated into yaw shape, or is upwards pivoted into vertical.
Beneficial effect of the present invention is: utilize the described elbow frame of this toggle unit by the downward-sloping extension gradually towards described front side of described rear side, make this toggle unit quite easy in the operation of deployed condition or this folding state, and while expansion, there is enough rigidity of support, and can simplify overall structure.
Brief description of the drawings
Fig. 1 is a forward sight three-dimensional combination figure of an embodiment of fully collapsible invalid's chair of the present invention;
Fig. 2 looks up three-dimensional combination figure after of this embodiment;
Fig. 3 is a three-dimensional exploded view of this embodiment;
Fig. 4 is a side-looking combination section of this embodiment;
Fig. 5 is the cutaway view of getting along the straight line V-V in Fig. 4;
Fig. 6 is the cutaway view of getting along the straight line VI-VI in Fig. 5;
Fig. 7 is a sectional perspective constitutional diagram of this embodiment, illustrate one after pivot after axle bed and;
Fig. 8 is the expansion schematic diagram of a toggle unit of this embodiment, illustrates that a block is against scheduling a spacing block edge;
Fig. 9 is the cutaway view of getting along the straight line IX-IX in Fig. 4;
Figure 10 is that of this embodiment prepares folding schematic diagram;
Figure 11 is a folding schematic diagram of this embodiment.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
Consult Fig. 1, Fig. 2 and Fig. 3, an embodiment of fully collapsible invalid's chair of the present invention, comprises a support unit 10, pair of turning wheels 20, a pair of front jocket wheel 30, toggle unit 40, seat unit 50 and an armrest unit 60.
This support unit 10 has a pair of bogie side frame 11 and a pair of pedal 12 that is articulated in respectively described bogie side frame 11.Described bogie side frame 11 respectively has a top 111, a bottom 112 in contrast to this top 111, a front end 113 and a rear end 114 in contrast to this front end 113, one to main body 13 that should rear end 114, one is connected in this main body 13 and is generally the shaft-like body frame bar 14 of inverted L shape, a cantilever 15 that is connected in this main body 13 and is extended towards these body frame bar 14 ends by this main body 13, be located at this front end 113 and level off to the front axle bed 16 of this bottom 112 and one for one and be located at the rear axle bed 17 of this main body 13.This main body 13 has that an axle hole 131 and one are located at these axle hole 131 tops and to screw 132 that should rear end 114 1 sides, this body frame bar 14 has a spacer 141 and one and is arranged at this spacer 141 and is U-shaped locating hole 142, coordinate ginseng Fig. 5, Fig. 6 and Fig. 7, this rear axle bed 17 has an axis hole 171 arranging along axis L and one and is radially communicated with the stopper slot 172 that is arranged at these axis hole 171 outsides, this axis L is inclined to set, and by this rear end 114 towards the downward-sloping extension gradually of this front end 113, this stopper slot 172 has one first gear end 174 and one and is interval in around this axis L the second gear end 175 of this first gear end 174.Described pedal 12 is articulated in respectively the front end 113 of described bogie side frame 11 and levels off to described bottom 112, and described pedal 12 assembly are mutual overlap joint shape, and can be manipulated into yaw shape (seeing Fig. 1), or are upwards pivoted into vertical (seeing Figure 11).
Described runner 20 is located in respectively the rear end 114 of described bogie side frame 11, and in the present embodiment, described runner 20 is located in respectively the axle hole 131 of described main body 13.
Described front jocket wheel 30 is located in respectively the front end 113 of described bogie side frame 11 and levels off to described bottom 112, and in the present embodiment, described front jocket wheel 30 is located at respectively described cantilever 15 ends.
Coordinate ginseng Fig. 5, this toggle unit 40 is articulated between the described bogie side frame 11 of this support unit 10, and has elbow frame 41 and the bearing pin 42 being located between described elbow frame 41 of a pair of mutual pivot joint.Described elbow frame 41 respectively has one corresponding to described front end 113 and levels off to the front side 411 of described bottom 112, one corresponding to described rear end 114 and the rear side 412 at described top 111 of leveling off to, one with the side edge part 413 of corresponding bogie side frame 11 pivot joints, one in contrast to this side edge part 413 and with the connecting portion 414 of another elbow frame 41 mutual pivot joints, be located at this side edge part 413 and be located at this side edge part 413 and be arranged in the rear pivot 416 in corresponding rear axis hole 171 corresponding to the front pivot 415 of described front end 113 and one for one, as shown in Fig. 1 and Fig. 4, described elbow frame 41 is towards the downward-sloping extension gradually of described front side 411 by described rear side 412, when this toggle unit 40 is positioned at deployed condition away from each other of a side edge part 413 that makes described elbow frame 41, between described elbow frame 41 and a horizontal plane P, there is an angle theta between 20～70 degree, in the present embodiment, this angle theta is about 30 degree.Described front pivot 415 is arranged in corresponding front axle bed 16, described rear pivot 416 respectively has a block piece 417 that can be sheathed on respectively in described stopper slot 172, this bearing pin 42 is located between described connecting portion 414, and as shown in Figure 8, the connecting portion 414 of one of them elbow frame 41 has a sliding surface 43 around these bearing pin 42 outsides and one and is arranged at the wherein spacing lateral margin 44 of one end of this sliding surface 43, the connecting portion 414 of another elbow frame 41 have one can be for this spacing lateral margin 44 abutment face 45 against location.
This seat unit 50 can be dismantled and be installed on the described bogie side frame 11 of this support unit 10, and comprises that a seat board 51 with fixing contour shape and one are articulated in this seat board 51 rear sides and upwardly extending backup plate 52.This seat board 51 has two latches that protrude out and be low wide and up narrow shape downwards 511, two and levels off to this backup plate 52 and this seat board 51 can be locked in to the knob 513 of this support unit 10, described latch 511 can be intercalated in the locating hole 142 of described bogie side frame 11, and described knob 513 can be locked in the screw 132 of described bogie side frame 11.Above-mentioned have fixing contour shape and refer to have suitable hardness and intensity, is different from the soft seat of general existing textile type, and in the present embodiment, this seat board 51 is to adopt fiber reinforced composite material to make with this backup plate 52.
Coordinate ginseng Fig. 4 and Fig. 9, described armrest unit 60 is installed on this support unit 10, and respectively has an energy adjustment and be installed on the location-plate 61 of the rear end 114 of described bogie side frame 11, backup plate 62 that is connected in this location-plate 61 and energy is fixed on this location-plate 61 locking piece 63 of this main body 13.Described location-plate 61 respectively have a pivot joint end that is articulated in this body frame bar 14 611, one in contrast to the swing end 612 of this pivot joint end 611, one be circular-arc guide groove 613, several inlay card groove 614 that is communicated in this guide groove 613 and is hole enlargement shape around this pivot joint end 611.Described backup plate 62 is vertically connected respectively in described location-plate 61 apical margins, described locking piece 63 respectively has one and is locked in described main body 13 and is sheathed on blocking part 632 and the spring 633 being installed on this fixed part 631 and this blocking part 632 of this fixed part 631 through the fixed part 631 in described guide groove 613, one, this spring 633 has perseverance makes this blocking part 632 be nested in the potential energy in any one inlay card groove 614, operate this blocking part 632 and shift out in corresponding inlay card groove 614, can make described location-plate 61 produce and swing with respect to described main body 13.
Again as shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 5, show that wheelchair of the present invention is the state that can Gong take, that is to say, this toggle unit 40 is positioned at this deployed condition, and has maximum spacing distance between described bogie side frame 11, now, as shown in the solid line of Fig. 6, utilize described block piece 417 to be positioned respectively described the first gear end 174, and as shown in Figure 8, utilize described abutment face 45 against being positioned on described spacing lateral margin 44, can make described elbow frame 41 keep being arranged side by side, deployed condition.And this seat unit 50 is installed between described bogie side frame 11, the latch 511 of this seat board 51 is intercalated in the locating hole 142 of described bogie side frame 11, and described knob 513 is also locked in the screw 132 of described bogie side frame 11, and this seat board 51 can provide user to take advantage of seat.And as shown in Fig. 4 and Fig. 9, the blocking part 632 of the locking piece 63 of this armrest unit 60 is nested in an inlay card groove 614 that is positioned at lowermost end, and make described backup plate 62 be hung on described runner 20 tops, can for take author's arm against.
As shown in figure 10, when wheelchair does not temporarily use, or when wanting to collect, carrying, pack, operator can first screw out described knob 513 (ginseng Fig. 3) in described screw 132, and described latch 511 is shifted out in described locating hole 142, just can make this seat unit 50 separate on this support unit 10.Then, operator only need upwards mention the bearing pin of this toggle unit 40 42 again, utilize described elbow frame 41 with the mutual pivot joint of this bearing pin 42, and the side edge part 413 of described elbow frame 41 utilizes described front pivot 415 to be articulated in described front axle bed 16, described rear pivot 416 is articulated in the effect of described rear axle bed 17, just can make these toggle unit 40 operations be side edge part 413 folding state for convergence each other that makes described elbow frame 41, this toggle unit 40 is in the time of folding state, as shown in Fig. 6 imaginary line, described block piece 417 is positioned respectively described the second gear end 175, and make described elbow frame 41 be upright closing shape, and utilize described elbow frame 41 also can interlock described in the mutual closing of bogie side frame 11, can make wheelchair reach folding object, and dwindle the volume (as Figure 11) of wheelchair.
Again as shown in figure 11, and coordinate ginseng Fig. 9, this toggle unit 40 is at folding state, and in the time that described runner 20 is separated on the bogie side frame 11 of this support unit 10, pull described locking piece 63 to shift out in corresponding inlay card groove 614, just can make described location-plate 61 produce and swing with respect to described main body 13, the downward sedimentation of described backup plate 62, until the blocking part 632 of described locking piece 63 is nested in an inlay card groove 614 that is positioned at top, utilize the adjustment of described backup plate 62 height, also can dwindle the volume of the wheelchair after folding.
Therefore, then by effect of wheelchair of the present invention be summarized as follows:
One, the described elbow frame 41 that utilizes this toggle unit 40 by described rear side 412 towards the downward-sloping extension gradually of described front side 411, make this toggle unit 40 in the time of deployed condition, can produce and extend to described bottom 112 by described top 111, and be extended to the supporting role of described rear end 114 by described front end 113.That is to say, can substitute a known horizontally extending lower toggle with single this toggle unit 40 that tilts to extend and add a vertically extending upper toggle.The member of this toggle unit 40 is few, simple in structure, manufactures assembly and is also easy to, and can reduce manufacturing cost.
Two, single this toggle unit 40 that tilts to extend has minimum pivoting point, and utilizes seat board 51 these toggle unit 40 of collocation with fixing contour shape, provides this support unit 10 to have more firm rigid structure.
Three, operator only need upwards mention the bearing pin of this toggle unit 40 42 again, just can make the mutual closing of bogie side frame 11 described in these toggle unit 40 folding interlocks, in the time wanting to launch to use again, also only need again bearing pin 42 be promoted downwards, so the operation of folding and expansion is quite simple.
Claims (8)
1. a fully collapsible invalid's chair, comprises a support unit, pair of turning wheels, a pair of front jocket wheel, a toggle unit and a seat unit, it is characterized in that:
This support unit, has a pair of bogie side frame, and described bogie side frame respectively has a front end and a rear end in contrast to this front end;
Described runner, is located in respectively described bogie side frame;
Described front jocket wheel, is located in respectively described bogie side frame;
This toggle unit, be articulated between the described bogie side frame of this support unit, and there is the elbow frame of a pair of mutual pivot joint, described elbow frame respectively has a front side corresponding to described front end, a rear side corresponding to described rear end, one with the side edge part of corresponding bogie side frame pivot joint and one in contrast to this side edge part and with the connecting portion of the mutual pivot joint of another elbow frame, described elbow frame is by the downward-sloping extension gradually towards described front side of described rear side, this toggle unit can be by a side edge part that makes described elbow frame deployed condition away from each other, operation is a side edge part folding state for convergence each other that makes described elbow frame,
This seat unit, can dismantle and be installed on the described bogie side frame of this support unit, and comprise a seat board with fixing contour shape, in the time that this seat unit is installed between described bogie side frame, this toggle unit is deployed condition and can not folding, when this seat unit is in the time that described bogie side frame is separated, this toggle unit can folding.
2. fully collapsible invalid's chair according to claim 1, it is characterized in that: the described bogie side frame of this support unit also respectively has the main body of a described rear end of correspondence, body frame bar that is connected in this main body and one and be connected in the cantilever of this main body, described runner is located in respectively described main body, and described front jocket wheel is located at respectively described cantilever.
3. fully collapsible invalid's chair according to claim 1, it is characterized in that: the described bogie side frame of this support unit also respectively has a front axle bed of being located at described front end and one is located at the rear axle bed of described main body, this rear axle bed has an axis hole along an axis setting and one and is radially communicated with the stopper slot that is arranged at this axis hole outside, this axis is inclined to set, and by this rear end towards the downward-sloping extension gradually of this front end, this stopper slot has one first gear end and one and is interval in around this axis the second gear end of this first gear end, the described elbow frame of this toggle unit also respectively has one and is located at this side edge part and is located at this side edge part and is arranged in the rear pivot in corresponding rear axis hole corresponding to the front pivot of the front end of described bogie side frame and one, described rear pivot respectively has one can be sheathed on respectively the block piece in described stopper slot, this toggle unit is in the time of deployed condition, described block piece is positioned respectively described the first gear end, this toggle unit is in the time of folding state, described block piece is positioned respectively described the second gear end.
4. fully collapsible invalid's chair according to claim 3, it is characterized in that: this toggle unit also has a bearing pin being located between described connecting portion, and the connecting portion of one of them elbow frame has a sliding surface around this bearing pin outside and one and is arranged at the wherein spacing lateral margin of one end of this sliding surface, the connecting portion of another elbow frame have one can be for this spacing lateral margin the abutment face against location.
5. fully collapsible invalid's chair according to claim 2, it is characterized in that: also comprise a pair of armrest unit that is installed on this support unit, described armrest unit respectively has an energy adjustment and is installed on the location-plate of the rear end of described bogie side frame, backup plate that is connected in this location-plate and energy are fixed on this location-plate the locking piece of this main body, described location-plate respectively has the pivot joint end and the swing end in contrast to this pivot joint end that are articulated in this body frame bar, this toggle unit is in the time of deployed condition, described backup plate is arranged at respectively described runner top, this toggle unit is in the time of folding state, operate this locking piece and make described location-plate produce and swing with respect to this main body, the downward sedimentation of described backup plate.
6. fully collapsible invalid's chair according to claim 5, it is characterized in that: the location-plate of described armrest unit also respectively has one and is circular-arc guide groove around this pivot joint end, several inlay card grooves that are communicated in this guide groove and are hole enlargement shape, described locking piece respectively has one and is locked in described main body and passes in the fixed part of described guide groove, one is sheathed on blocking part and the spring being installed between this fixed part and this blocking part of this fixed part, this spring has perseverance makes this blocking part be nested in the potential energy in any one inlay card groove, operate this blocking part shifts out in corresponding inlay card groove, can make described location-plate produce and swing with respect to described main body.
7. fully collapsible invalid's chair according to claim 1, is characterized in that: when this toggle unit is positioned at this deployed condition, have an angle between 20～70 degree between described elbow frame and a horizontal plane.
8. fully collapsible invalid's chair according to claim 1, it is characterized in that: this support unit also has a pair of pedal that is articulated in respectively described bogie side frame, described pedal is articulated in the front end of described bogie side frame, and described pedal can be manipulated into yaw shape, or is upwards pivoted into vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410347226.9A CN104162234A (en) | 2014-07-21 | 2014-07-21 | Foldable wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410347226.9A CN104162234A (en) | 2014-07-21 | 2014-07-21 | Foldable wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104162234A true CN104162234A (en) | 2014-11-26 |
Family
ID=51906343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410347226.9A Pending CN104162234A (en) | 2014-07-21 | 2014-07-21 | Foldable wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104162234A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3758150A (en) * | 1972-06-28 | 1973-09-11 | P Williams | Collapsible wheel chair |
| US4648615A (en) * | 1983-11-22 | 1987-03-10 | Frank Volin | Wheelchair width adjuster |
| CN1147931A (en) * | 1995-10-13 | 1997-04-23 | 雷巴协维克马新股份有限公司 | Folding multi-function wheeled chair |
| US6311999B1 (en) * | 1997-12-23 | 2001-11-06 | Kueschall Design Ag | Wheelchair with a closed three-dimensional frame |
| CN2605838Y (en) * | 2003-01-24 | 2004-03-10 | 巫锦昌 | Improved structure for wheel chair |
| GB2499023A (en) * | 2012-02-03 | 2013-08-07 | Univ Sheffield | Collapsible wheelchair for accessing a toilet and shower |
-
2014
- 2014-07-21 CN CN201410347226.9A patent/CN104162234A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3758150A (en) * | 1972-06-28 | 1973-09-11 | P Williams | Collapsible wheel chair |
| US4648615A (en) * | 1983-11-22 | 1987-03-10 | Frank Volin | Wheelchair width adjuster |
| CN1147931A (en) * | 1995-10-13 | 1997-04-23 | 雷巴协维克马新股份有限公司 | Folding multi-function wheeled chair |
| US6311999B1 (en) * | 1997-12-23 | 2001-11-06 | Kueschall Design Ag | Wheelchair with a closed three-dimensional frame |
| CN2605838Y (en) * | 2003-01-24 | 2004-03-10 | 巫锦昌 | Improved structure for wheel chair |
| GB2499023A (en) * | 2012-02-03 | 2013-08-07 | Univ Sheffield | Collapsible wheelchair for accessing a toilet and shower |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2248707B1 (en) | Baby buggy | |
| CN101348124B (en) | Children's barrow | |
| CN106515832B (en) | Children trolley | |
| EP2762383A1 (en) | Push chair for children | |
| CN205854245U (en) | Children trolley | |
| CN106428181B (en) | A kind of baby carriage | |
| CN206384002U (en) | Children trolley | |
| CN204623529U (en) | Children trolley | |
| CN205854235U (en) | Children trolley | |
| CN204871133U (en) | Push cart for children | |
| CN108297925B (en) | Child cart | |
| CN104192195B (en) | The child umbrella handle vehicle of bi-directional foldable | |
| CN104162234A (en) | Foldable wheelchair | |
| CN106741094B (en) | Children's barrow | |
| CN103434555B (en) | A kind of Folding trolley | |
| CN204192125U (en) | Children dinning chair | |
| CN104192189B (en) | Children's barrow | |
| CN205632634U (en) | Double children's stick for umbrella car | |
| CN203996356U (en) | Double go-cart | |
| CN104326006A (en) | Children umbrella stroller | |
| CN100581895C (en) | Crosswise-foldable baby carriage | |
| CN202682216U (en) | Folding old person mobility scooter | |
| CN203472938U (en) | Child cart | |
| CN201559697U (en) | Baby trolley | |
| CN105644607B (en) | A kind of go-cart for double child |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141126 |