CN115339552B - Backrest folding structure - Google Patents
Backrest folding structure Download PDFInfo
- Publication number
- CN115339552B CN115339552B CN202210773063.5A CN202210773063A CN115339552B CN 115339552 B CN115339552 B CN 115339552B CN 202210773063 A CN202210773063 A CN 202210773063A CN 115339552 B CN115339552 B CN 115339552B
- Authority
- CN
- China
- Prior art keywords
- backrest
- movable
- contact surface
- pushing
- seat
- 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.)
- Active
Links
- 238000005452 bending Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 abstract description 5
- 230000007246 mechanism Effects 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
- B62J1/10—Internal adjustment of saddles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K15/00—Collapsible or foldable cycles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention relates to a seat of a foldable walk-substituting tool, in particular to a backrest folding structure for the foldable walk-substituting tool. The utility model provides a back beta structure, its characterized in that includes setting up in back and seat rotation fixed department first part and second part, one part and the back of two parts in first part and the second part are fixed, another part and the seat of two parts in first part and second part are fixed, first part is fixed with the one end of movable part, the other end of movable part extends towards the second part side, the second part terminal surface has the first thrust face that is used for contacting with first part, first thrust face is the inclined plane, perhaps first thrust face is the cambered surface. The invention has the advantages of difficult error folding of the backrest under the action of external force, convenient use and lower cost.
Description
Technical Field
The invention relates to a seat of a foldable walk-substituting tool, in particular to a backrest folding structure for the foldable walk-substituting tool.
Background
Chinese patent publication No. CN200942835Y discloses a folding scooter, which comprises a cushion and a backrest, wherein a foldable frame is arranged at the lower side of the cushion, and the backrest is hinged at the rear end of the cushion. In order to reduce the production cost, the cushion and the backrest are made of plastic, and as the backrest is lighter and the hinge joint of the backrest and the cushion is not provided with a locking mechanism or a safety mechanism, the backrest is easy to turn over under the action of wind and fold on the cushion, so that the backrest is inconvenient to use.
Disclosure of Invention
The invention aims to provide a backrest folding structure which is not easy to fold by mistake under the action of external force, convenient to use and low in cost.
In order to achieve the above purpose, the invention adopts the following technical scheme: the backrest folding structure comprises a first part and a second part which are arranged at the rotation fixing position of a backrest and a seat plate, wherein one part of the two parts of the first part and the second part is fixed with the backrest, the other part of the two parts of the first part and the second part is fixed with the seat plate, the first part is fixed with one end of a movable part, the other end of the movable part extends towards the side of the second part, the end face of the second part is provided with a first pushing surface for contacting with the first part, the first pushing surface is an inclined surface, the plane of the first pushing surface is inclined relative to the rotation fixing axis of the rotation fixing position, or the first pushing surface is an arc surface, and an opening formed by the arc surface is arranged forwards or backwards; when the backrest and the seat are folded, the first part is positioned at the side of the second part, and the movable part is contacted with the side of the second part; when the backrest and the seat are unfolded, the movable part is positioned right in front of or right behind the first pushing surface of the second component.
When a user wants to fold the backrest, the backrest is stressed and overturned, so that the movable part at the first part is contacted with the second part, and the first pushing surface of the second part is contacted with the first contact surface at the moment. The backrest is turned over by pushing the movable part open or squeezing the movable part open firstly and providing larger force for the backrest, so that the backrest can be prevented from being blown by wind easily due to lighter backrest, and the backrest is not easy to fold due to external force; the folding of the backrest can be realized by only overcoming the resistance provided by the movable part, and a user only needs to turn over the backrest, so that the folding of the backrest is very convenient; the invention only adds the first component and the second component, and has fewer parts and lower cost. Wherein the first part and the movable part may be integrally formed of plastic.
Preferably, the end surface of the movable part, which is used for contacting with the first pushing surface, is a first contact surface, the movable part is provided with a linkage protrusion extending to the side, the end surface of the linkage protrusion, which is used for contacting with the first pushing surface, is a second contact surface, the second contact surface is far away from the first pushing surface of the second component compared with the first contact surface, and when the backrest and the seat are folded, the side surface of the linkage protrusion of the movable part is contacted with the side surface of the second component.
When a user turns over the backrest, the first pushing surface of the second part is contacted with the first contact surface, and when the movable part is pushed to move sideways, the first pushing surface of the second part is contacted with the second contact surface again, and the movable part moves sideways to the second part completely along with the continuous turning over of the backrest. The invention has the advantages that the linkage bulge is arranged to play a certain buffering role, so that safety accidents caused by too fast overturning of the backrest are avoided when a user overturns the backrest with larger force; meanwhile, the one-time overlarge displacement of the end part of the movable part can be avoided, so that the service life of the movable part is prolonged.
Preferably, the first contact surface is an inclined surface, and the plane where the first contact surface is located is inclined relative to the rotation fixing axis of the rotation fixing part. The first contact surface is an inclined surface, so that the force required by the lateral movement of the end part of the movable part is reduced, and the phenomenon of clamping and stopping in the folding process of the backrest is avoided.
Preferably, the second contact surface is an inclined surface, and the inclination angle of the second contact surface is larger than that of the first contact surface. That is, the included angle formed between the second contact surface and the first pushing surface is larger than the included angle formed between the first contact surface and the first pushing surface. The first pushing surface of the second component is easier to move from the front side to the rear side of the second contact surface to the side of the linkage protrusion, so that a certain buffer effect can be achieved, and meanwhile, the backrest is prevented from being blocked greatly when being folded, and the use comfort and stability can be improved.
Preferably, the second component further has a second pushing surface for contacting with the second contact surface, the second pushing surface is closer to the first contact surface than the first pushing surface, and a third contact surface for contacting with the side surface of the movable part is connected between the second pushing surface and the first pushing surface. The second pushing surface is matched with the second contact surface, and the third contact surface is matched with the movable part and the side surface of the linkage protrusion, so that the lateral contact surface area of the second part and the movable part is increased, the movable part is conveniently pushed to move laterally, and meanwhile, the stability of the chair is improved when the chair is used.
Preferably, the movable part is arc-shaped, and the arc-shaped opening formed by the movable part faces the rotation fixing part and takes the rotation fixing axis as the circle center of the arc-shaped opening. When the backrest is folded, the movable part is arc-shaped, so that the second part is always contacted with the movable part, and the stability of the backrest is improved when the backrest is used.
Preferably, a bending part is formed at the deviating end part of the movable part, and the opening direction formed by the bending part is opposite to the moving direction of the movable part after being pushed by the second component. The movable part can not deflect around the joint of the movable part and the first component after being pushed by the device, and can deflect at the bending part.
Preferably, the end of the movable part is provided with a lateral-opening yielding groove, and the opening direction of the yielding groove is the same as the moving direction of the movable part after being pushed by the second component. The arrangement described above makes the movable portion end portion lighter, also facilitates the shaping of the first contact surface and the second contact surface, and facilitates the first component being made of plastic.
Preferably, the backrest or the seat plate is provided with a plurality of limiting grooves, the first component is provided with a plurality of limiting protrusions extending into the limiting grooves, and the width of the limiting protrusions is smaller than that of the limiting grooves. Through setting up spacing groove and spacing arch to confirm first part setting position, guarantee the effective contact of second part and movable part.
Preferably, the first member is provided with a protection portion located right in front of or right behind the end of the movable portion, the protection portion is closer to the second member than the movable portion, and a gap is formed between the protection portion and the movable portion. The protection part is arranged to protect the second part and the movable part to a certain extent, so that foreign matters are prevented from entering between the first part and the second part.
The invention has the advantages of difficult error folding of the backrest under the action of external force, convenient use and lower cost.
Drawings
FIG. 1 is a schematic diagram of a structure of the present invention;
FIG. 2 is a schematic view of a structure of the hinge of the backrest and seat plate of the present invention;
FIG. 3 is a schematic view of the structure of the first component of the present invention;
fig. 4 is a schematic view of the second part of the backrest of the invention.
Detailed Description
The invention is further described below with reference to the drawings and specific embodiments.
As shown in fig. 1, 3 and 4, the backrest folding structure disclosed in this embodiment includes a first component 3 and a second component 4 disposed at a rotationally fixed position of the backrest 1 and the seat 2, the first component 3 is fixed on the seat 2 by a fastener, and the second component 4 is integrally formed with the backrest 1. The first member 3 is fixed to one end of the movable portion 31, and the other end of the movable portion 31 extends rearward and toward the second member 4 side. The left side and the right side of the lower end of the backrest 1 are respectively provided with a hinge part 11 which extends forwards and is used for rotationally fixing the seat 1, and the hinge part 11 is deviated from the rotation axis of the backrest 1 and the seat 2 and is provided with the second part 4.
As shown in fig. 2,3 and 4, the front end surface of the second member 4 has a first pushing surface 41 for contacting with the first member 3, the first pushing surface 41 is an inclined surface, and the plane of the first pushing surface 41 is inclined with respect to the rotation fixing axis of the rotation fixing portion. When the backrest 1 and the seat 2 are folded, the first part 3 is positioned at the side of the second part 4, and the movable part 31 is contacted with the side of the second part 4; when the backrest 1 and the seat 2 are unfolded, the movable portion 31 is located right in front of the first pushing surface 41 of the second member 4.
The end surface of the movable portion 31 for contacting the first pushing surface 41 is a first contact surface 311, the movable portion 31 has a laterally extending linking protrusion 312, the end surface of the linking protrusion 312 for contacting the first pushing surface 41 is a second contact surface 313, the second contact surface 313 is farther from the first pushing surface 41 of the second member 4 than the first contact surface 311, and when the backrest 1 is folded with the seat 2, the side surface of the linking protrusion 312 of the movable portion 31 contacts the side surface of the second member 4. The first contact surface 311 is an inclined surface, the plane of the first contact surface 311 is inclined with respect to the rotation fixing axis of the rotation fixing portion, the second contact surface 313 is an inclined surface, and the inclination angle of the second contact surface 313 is greater than that of the first contact surface 311.
The second member 4 further has a second pushing surface 42 for contacting the second contact surface 313, and when the backrest 1 is unfolded, the second pushing surface 42 is closer to the first contact surface 311 than the first pushing surface 41, and a third contact surface 43 for contacting the side surface of the movable portion 31 is connected between the second pushing surface 42 and the first pushing surface 41.
As shown in fig. 2 and 3, the first member 3 is circular, and the movable portion 31 extends rearward along the circumferential direction of the outer edge of the first member 3 so that the movable portion 31 is arc-shaped, and the arc-shaped opening formed by the movable portion 31 faces the rotation fixing portion and takes the rotation fixing axis as the center of the arc-shaped opening. The movable portion 31 is formed with a bending portion 32 at a position deviated from the end portion, and an opening direction formed by the bending portion 32 is opposite to a moving direction of the movable portion 31 after being pushed by the second member 4. The end of the movable part 31 is provided with a lateral opening yielding groove 33, and the opening direction of the yielding groove 33 is the same as the moving direction of the movable part 31 after being pushed by the second component 4. The first member 3 is provided with a protection portion 30 located right behind the end of the movable portion 31, the protection portion 30 is closer to the second member 4 than the movable portion 31, and a gap 301 is provided between the protection portion 30 and the movable portion 31.
The seat 2 department is equipped with a plurality of upwards open-ended spacing groove 21, and a plurality of spacing groove 21 are along fore-and-aft direction interval setting, and first part 3 is equipped with a plurality of spacing protruding 34 that stretch into the spacing inslot, and a plurality of 34 interval setting side by side are in first part 3 same one side, and the width of spacing protruding 34 is less than the width of spacing groove 21. In this embodiment, the middle part of the first component 3 is provided with a mounting hole 35, and a fastener passes through the mounting hole 35 and fixes the first component 3 on the seat board 2, and the mounting hole 35 is coaxial with the rotation fixing axis; the position of the movable part can be reasonably adjusted by rotating the first component 3, the limiting protrusion 34 moves in the limiting groove 21, and finally the first component 3 is fixed by a fastener.
The invention has the advantages of difficult error folding of the backrest under the action of external force, convenient use and lower cost.
Claims (5)
1. The folding structure of the backrest is characterized by comprising a first part and a second part which are arranged at the rotation fixing position of the backrest and the seat plate, wherein one part of the first part and the second part is fixed with the backrest, the other part of the first part and the second part is fixed with the seat plate, the first part is fixed with one end of a movable part, the other end of the movable part extends towards the side of the second part, the end surface of the second part is provided with a first pushing surface for contacting with the first part, the first pushing surface is an inclined surface, the plane of the first pushing surface is inclined relative to the rotation fixing axis of the rotation fixing position, or the first pushing surface is an arc surface, and an opening formed by the arc surface is arranged forwards or backwards;
when the backrest and the seat are folded, the first part is positioned at the side of the second part, and the movable part is contacted with the side of the second part; when the backrest and the seat are unfolded, the movable part is positioned right in front of or right behind the first pushing surface of the second component;
the movable part is provided with a linkage bulge extending to the side, the end surface of the linkage bulge, which is used for being contacted with the first pushing surface, is a second contact surface, which is far away from the first pushing surface of the second component compared with the first contact surface, and when the backrest and the seat are folded, the side surface of the linkage bulge of the movable part is contacted with the side surface of the second component;
The first contact surface is an inclined surface, and the plane where the first contact surface is positioned is obliquely arranged relative to the rotation fixing axis of the rotation fixing position; the second contact surface is an inclined surface, and the inclination angle of the second contact surface is larger than that of the first contact surface;
The movable part is arc-shaped, and an arc-shaped opening formed by the movable part faces the rotation fixed part and takes the rotation fixed axis as the circle center of the arc-shaped opening; the movable part is provided with a bending part at the position deviating from the end part, and the opening direction formed by the bending part is opposite to the moving direction of the movable part after being pushed by the second component.
2. The backrest folding structure as claimed in claim 1, wherein the second member further has a second pushing surface for contacting the second contact surface, the second pushing surface being closer to the first contact surface than the first pushing surface, a third contact surface for contacting the movable portion side surface being connected between the second pushing surface and the first pushing surface.
3. The folding backrest structure according to claim 1, wherein the movable portion has a laterally opened escape groove provided at an end thereof, and an opening direction of the escape groove is the same as a moving direction of the movable portion after the movable portion is pushed by the second member.
4. The folding backrest structure according to claim 1, wherein the backrest or the seat is provided with a plurality of limiting grooves, the first member is provided with a plurality of limiting protrusions extending into the limiting grooves, and the width of the limiting protrusions is smaller than that of the limiting grooves.
5. The folding backrest structure of claim 1, wherein the first member is provided with a protecting portion located right in front of or right behind an end of the movable portion, the protecting portion is closer to the second member than the movable portion, and a gap is provided between the protecting portion and the movable portion.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210773063.5A CN115339552B (en) | 2022-06-30 | 2022-06-30 | Backrest folding structure |
| PCT/CN2023/103011 WO2024002121A1 (en) | 2022-06-30 | 2023-06-28 | Backrest folding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210773063.5A CN115339552B (en) | 2022-06-30 | 2022-06-30 | Backrest folding structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115339552A CN115339552A (en) | 2022-11-15 |
| CN115339552B true CN115339552B (en) | 2024-06-25 |
Family
ID=83949055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210773063.5A Active CN115339552B (en) | 2022-06-30 | 2022-06-30 | Backrest folding structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115339552B (en) |
| WO (1) | WO2024002121A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115339552B (en) * | 2022-06-30 | 2024-06-25 | 浙江联宜电机有限公司 | Backrest folding structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205801A (en) * | 2011-05-19 | 2011-10-05 | 上海延锋江森座椅有限公司 | Turnover and foldable seat |
| CN114348158A (en) * | 2021-12-31 | 2022-04-15 | 东阳市联宜机电有限公司 | Scooter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19647464A1 (en) * | 1996-11-16 | 1998-05-20 | Bayerische Motoren Werke Ag | Vehicle seat |
| KR200250514Y1 (en) * | 2001-06-08 | 2001-10-19 | 정관영 | A foldable chair without legs |
| CN2696950Y (en) * | 2004-04-30 | 2005-05-04 | 明门实业股份有限公司 | Foldable frame for permulator |
| US20080258524A1 (en) * | 2007-04-20 | 2008-10-23 | Cosco Management, Inc. | Juvenile vehicle seat with backward-folding backrest |
| FR2920012B1 (en) * | 2007-08-17 | 2010-03-26 | Peugeot Citroen Automobiles Sa | ADJUSTABLE AND RETRACTABLE SEAT IN TWO POSITIONS AND A METHOD OF ESCAMOTATION |
| CN103661542A (en) * | 2012-08-31 | 2014-03-26 | 明门香港股份有限公司 | Foldable stroller capable of folding a seatback automatically |
| CN203511916U (en) * | 2013-04-01 | 2014-04-02 | *** | Portable and foldable draw-bar box type electric tricycle with function of folding chair |
| CN109177832B (en) * | 2018-08-28 | 2021-09-03 | 重庆长安汽车股份有限公司 | Folding seat |
| CN110667679B (en) * | 2019-09-20 | 2022-01-11 | 曼玛斯&帕帕斯控股有限公司 | Seat frame assembly, stroller and folding method thereof |
| CN110775137A (en) * | 2019-10-12 | 2020-02-11 | 好孩子儿童用品有限公司 | Children's seat pocket and children's shallow |
| CN211252730U (en) * | 2019-10-22 | 2020-08-14 | 许华胜 | Baby carriage |
| CN110712672A (en) * | 2019-10-22 | 2020-01-21 | 许华胜 | Child's seat subassembly |
| CN110682958A (en) * | 2019-10-22 | 2020-01-14 | 许华胜 | Baby carriage |
| CN212921673U (en) * | 2020-05-12 | 2021-04-09 | 绍兴上虞日星五金制品有限公司 | Foldable linked seat for children's carriage |
| CN113230049B (en) * | 2021-03-29 | 2023-03-21 | 浙江英洛华康复器材有限公司 | Folding wheelchair |
| CN215423712U (en) * | 2021-08-03 | 2022-01-07 | 安吉县盛信办公家具有限公司 | Seat with foldable backrest |
| CN215245076U (en) * | 2021-08-06 | 2021-12-21 | 珠海阳光儿童用品有限公司 | Seat basket |
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| CN115339552B (en) * | 2022-06-30 | 2024-06-25 | 浙江联宜电机有限公司 | Backrest folding structure |
| CN217864470U (en) * | 2022-06-30 | 2022-11-22 | 东阳市联宜机电有限公司 | Scooter with foldable seat |
| CN115258018B (en) * | 2022-07-01 | 2024-07-02 | 浙江联宜电机有限公司 | Folding seat and folding tool of riding instead of walk |
-
2022
- 2022-06-30 CN CN202210773063.5A patent/CN115339552B/en active Active
-
2023
- 2023-06-28 WO PCT/CN2023/103011 patent/WO2024002121A1/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102205801A (en) * | 2011-05-19 | 2011-10-05 | 上海延锋江森座椅有限公司 | Turnover and foldable seat |
| CN114348158A (en) * | 2021-12-31 | 2022-04-15 | 东阳市联宜机电有限公司 | Scooter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115339552A (en) | 2022-11-15 |
| WO2024002121A1 (en) | 2024-01-04 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240417 Address after: 322100 Hengdian Electronic Industrial Park, Dongyang City, Jinhua City, Zhejiang Province Applicant after: ZHEJIANG LINIX MOTOR Co.,Ltd. Country or region after: China Address before: No. 196, Gongye Avenue, Hengdian Town, Dongyang City, Jinhua City, Zhejiang Province 322100 Applicant before: DONGYANG LIANYI ELECTROMECHANICAL Co.,Ltd. Country or region before: China |
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| GR01 | Patent grant |