CN109330251B - Forward tilting structure of chair seat - Google Patents
Forward tilting structure of chair seat Download PDFInfo
- Publication number
- CN109330251B CN109330251B CN201811420663.3A CN201811420663A CN109330251B CN 109330251 B CN109330251 B CN 109330251B CN 201811420663 A CN201811420663 A CN 201811420663A CN 109330251 B CN109330251 B CN 109330251B
- Authority
- CN
- China
- Prior art keywords
- frame
- seat
- wrench
- forward tilting
- seat frame
- 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
- 238000010586 diagram Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/02—Seat parts
Landscapes
- Chairs Characterized By Structure (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention relates to a chair, in particular to a forward tilting structure of a chair seat. The seat cushion is arranged on the seat frame, the seat frame is arranged above the frame, the middle of the seat frame is rotationally connected with the frame, the side face of the rear end of the seat frame inwards stretches out of the positioning column, the positioning column is lapped on the surface of the frame, an elastic piece is arranged at the lapping part, one end of the elastic piece is fixedly connected with the frame, the other end of the elastic piece is sprung on the surface of the positioning column, the front end of the seat frame is suspended relative to the frame, and the frame is arranged on the fixing frame in a sitting mode. The release and locking device is arranged in the frame body, the wrench for operating the release and locking device is rotationally arranged on the seat cushion frame, the frame and the seat frame can be locked by rotating the wrench, and the front end of the seat frame can be inclined downwards relative to the frame by rotating the wrench again. The invention realizes the downward forward tilting of the front end of the chair seat, meets the special requirements of some users, has simple forward tilting adjustment structure, is not easy to damage, and is convenient to lock when the forward tilting is not needed.
Description
Technical Field
The invention relates to a chair, in particular to a forward tilting structure of a chair seat.
Background
The seat of the existing chair cannot be adjusted in a forward tilting manner, and sometimes cannot meet the requirements of users.
Disclosure of Invention
Therefore, an object of the present invention is to provide a forward tilting structure of a seat capable of tilting a front end of the seat downward.
The object of the present invention is thus achieved.
The utility model provides a forward structure of seat support, includes seat support frame, seatpad, frame and mount, and the seatpad is installed on the seat support frame, and the seat support frame is established in the frame top, and seat support frame middle part is connected with the frame rotation, and the locating column inwards stretches out in seat support frame rear end side, and the locating column is taken and is leaned on the frame surface, takes the position to be equipped with the elastic component, and elastic component one end and frame fixed connection, the elastic component other end spring is in the locating column surface, and the seat support frame front end is unsettled relative to the frame, and the frame is sat and is established on the mount.
The release and locking device is arranged in the frame body, the wrench for operating the release and locking device is rotationally arranged on the seat cushion frame, the frame and the seat frame can be locked by rotating the wrench, and the front end of the seat frame can be inclined downwards relative to the frame by rotating the wrench again.
The above technical solution can be further perfected as follows.
The release and locking device comprises a locating pin, a torsion spring, a pull rope and a return spring, wherein the locating pin is slidingly arranged in the frame, the torsion spring is rotationally arranged on the frame, a first free end of the torsion spring is connected with an inner end head of the pull rope, a second free end of the torsion spring is sprung on an outer end head of the locating pin, the return spring is arranged between the locating pin and the frame, a seat frame corresponding to the inner end head of the locating pin is provided with a groove, and the groove horizontally extends along the front and back directions of the seat frame.
The outer end of the pull rope is connected with the wrench, and the inner end of the wrench is in friction fit with the seat frame after the wrench rotates so as to keep the wrench motionless.
Under the action of the pull rope or the reset spring, the inner end head of the positioning pin enters and exits the groove.
The frame is connected with the fixing frame in a sliding way.
The outer surfaces of the two side walls of the frame are respectively provided with a circular arc pit, two sides of the corresponding seat frame are respectively provided with a pivot, the pivots are arranged in the pits, and the pivots are locked with the frame by bolts.
The frame surface below the locating column is provided with a recess, and the locating column is sprung in the recess by an elastic piece.
The invention realizes the downward forward tilting of the front end of the chair seat, meets the special requirements of some users, has simple forward tilting adjustment structure, is not easy to damage, and is convenient to lock when the forward tilting is not needed.
Drawings
Fig. 1 is an exploded view of an embodiment.
Fig. 2 is a schematic view of the internal structure of the tilt adjustment lock.
Fig. 3 is an enlarged schematic view of section a.
Fig. 4 is a schematic diagram of the internal structure of the tilt adjustment unlocking corresponding to the enlargement of the portion a.
Fig. 5 is a schematic view of the internal structure of the seat frame.
Fig. 6 is a schematic view of the internal structure of the seat after forward tilting.
Fig. 7 is a side view of the seat when it is horizontal.
Fig. 8 is a front end forward side view of the seat.
Fig. 9 is a schematic diagram of the wrench in the locked state.
Fig. 10 is an illustration of the wrench when unlocked.
Detailed Description
The invention is further described in detail below with reference to the drawings and examples.
The embodiment, in combination with the accompanying drawings, is a forward tilting structure of a seat, comprising a seat frame 1, a seat cushion (not shown in the drawings), a frame 2 and a fixing frame 3, wherein the seat cushion is arranged on the seat frame, the seat frame 1 is arranged above the frame 2, the middle part of the seat frame 1 is rotationally connected with the frame 2, the rotational connection is that a circular arc pit 4 is respectively formed on the outer surfaces of two side walls of the frame 2, two sides of the corresponding seat frame 1 are respectively provided with a pivot 5, the pivot 5 is arranged in the pit 4, the pivot and the frame are locked by bolts, and when the seat frame is forward tilted, the pivot rotates in the pit.
The both sides face of seat support frame 1 rear end inwards stretches out reference column 6 respectively, and the frame 2 surface of reference column 6 below is equipped with sunken 7, and reference column 6 is taken and is leaned on in sunken 7, and frame surface mounting has elastic component 8, and the elastic component 8 other end is sprung and is pressed at reference column 6 top surface, and seat support frame 1 front end is unsettled relative frame 2, and frame 2 gliding sits and establishes on mount 3, and the mount is installed on the lifter of support seat (not shown in the figure), can horizontal migration between frame 2 and the mount 3.
The frame 2 is internally provided with a locating pin 9, a torsion spring 10, a pull rope 11 and a return spring 12, the locating pin 9 is slidingly arranged in the frame 2, the torsion spring 10 is rotationally arranged on the frame 2, a first free end of the torsion spring 10 is connected with an inner end of the pull rope 11, a second free end of the torsion spring 10 is sprung at an outer end of the locating pin 9, the return spring 12 is arranged between the locating pin 9 and the frame 2, a groove 13 is formed in the seat frame 1 corresponding to the inner end of the locating pin 9, and the groove 13 horizontally extends along the front-back direction of the seat frame.
The outer end of the pull rope 11 is connected with the wrench 14, the wrench 14 is rotated upwards, the pull rope 11 is tensioned, the first free end of the torsion spring 10 is rotated, the second free end of the torsion spring 10 pushes the inner end of the positioning pin 9 into the groove 13, the frame 2 is locked with the seat frame 1, the front end of the seat frame cannot be declined, and the inner end 20 of the wrench 14 is in friction fit with the protrusion 21 of the seat frame after rotation of the wrench 14 so that the wrench is kept motionless. And then the downward turning wrench and the pull rope are loosened, the inner end head of the positioning pin slides out of the groove under the action force of the return spring, the front end of the seat frame can incline downwards relative to the frame, and the positioning column 6 jacks up the elastic piece 8 at the moment, but the downward pressure of the elastic piece 8 cannot be broken through.
Claims (4)
1. A forward tilting structure of a seat, characterized in that: the seat cushion is arranged on the seat frame, the seat frame is arranged above the frame, the middle part of the seat frame is rotationally connected with the frame, the side surface of the rear end of the seat frame inwards extends out of the positioning column, the positioning column is lapped on the surface of the frame, an elastic piece is arranged at the lapping part, one end of the elastic piece is fixedly connected with the frame, the other end of the elastic piece is sprung on the surface of the positioning column, the front end of the seat frame is suspended relative to the frame, the frame is arranged on the fixed frame, a dent is arranged on the surface of the frame below the positioning column, and the positioning column is sprung in the dent by the elastic piece;
the release and locking device is arranged in the frame body, the wrench for operating the release and locking device is rotationally arranged on the seat cushion frame, the frame and the seat frame can be locked by rotating the wrench, and the front end of the seat frame can be inclined downwards relative to the frame by rotating the wrench again.
2. The seat forward tilting structure according to claim 1, wherein: the release and locking device comprises a positioning pin, a torsion spring, a pull rope and a return spring, wherein the positioning pin is slidably arranged in the frame, the torsion spring is rotationally arranged on the frame, a first free end of the torsion spring is connected with an inner end head of the pull rope, a second free end of the torsion spring is sprung on an outer end head of the positioning pin, the return spring is arranged between the positioning pin and the frame, a seat frame corresponding to the inner end head of the positioning pin is provided with a groove, and the groove horizontally extends along the front-back direction of the seat frame;
the outer end of the pull rope is connected with a wrench, and the inner end of the pull rope is in friction fit with the seat frame after the wrench rotates so as to keep the wrench still;
under the action of the pull rope or the reset spring, the inner end head of the positioning pin enters and exits the groove.
3. The seat forward tilting structure according to claim 1, wherein: the frame is connected with the fixing frame in a sliding way.
4. The seat forward tilting structure according to claim 1, wherein: the outer surfaces of the two side walls of the frame are respectively provided with a circular arc pit, two sides of the corresponding seat frame are respectively provided with a pivot, the pivots are arranged in the pits, and the pivots are locked with the frame by bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811420663.3A CN109330251B (en) | 2018-11-26 | 2018-11-26 | Forward tilting structure of chair seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811420663.3A CN109330251B (en) | 2018-11-26 | 2018-11-26 | Forward tilting structure of chair seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109330251A CN109330251A (en) | 2019-02-15 |
| CN109330251B true CN109330251B (en) | 2024-04-02 |
Family
ID=65318012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811420663.3A Active CN109330251B (en) | 2018-11-26 | 2018-11-26 | Forward tilting structure of chair seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109330251B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4339103A (en) * | 1979-07-26 | 1982-07-13 | Toyota Jidosha Kogyo Kabushiki Kaisha | Device for adjusting inclined angle of seating surface of seat cushion |
| US4627662A (en) * | 1983-08-09 | 1986-12-09 | Pledge Office Chairs Limited | Tilting mechanism for a chair |
| CN85105204A (en) * | 1985-07-08 | 1987-01-14 | Hag公司 | The heeling mechanism of seat support or similar device |
| JP2004147670A (en) * | 2002-10-28 | 2004-05-27 | Delta Tooling Co Ltd | Mechanism for adjusting angle of inclination of cushion of seat |
| JP2009279208A (en) * | 2008-05-22 | 2009-12-03 | Delta Tooling Co Ltd | Seat structure |
| CN102525158A (en) * | 2010-12-27 | 2012-07-04 | 国誉株式会社 | Chair |
| KR101369405B1 (en) * | 2012-09-05 | 2014-03-06 | 한국생산기술연구원 | Forward-sloping apparatus and chair using it |
| KR20140146794A (en) * | 2013-06-18 | 2014-12-29 | 김승호 | Tilting structure of chair |
| JP2015163241A (en) * | 2015-05-11 | 2015-09-10 | コクヨファニチャー株式会社 | chair |
| WO2016046903A1 (en) * | 2014-09-24 | 2016-03-31 | ジョンソン コントロールズ テクノロジー カンパニ－ | Vehicle seat |
| CN105919328A (en) * | 2016-05-30 | 2016-09-07 | 陈敏 | Seat with adjustable seat cushion |
| CN209269067U (en) * | 2018-11-26 | 2019-08-20 | 陈敏 | The structure that leans forward of seat |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4475661B2 (en) * | 2005-09-29 | 2010-06-09 | トヨタ自動車株式会社 | Seat cushion frame structure |
-
2018
- 2018-11-26 CN CN201811420663.3A patent/CN109330251B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4339103A (en) * | 1979-07-26 | 1982-07-13 | Toyota Jidosha Kogyo Kabushiki Kaisha | Device for adjusting inclined angle of seating surface of seat cushion |
| US4627662A (en) * | 1983-08-09 | 1986-12-09 | Pledge Office Chairs Limited | Tilting mechanism for a chair |
| CN85105204A (en) * | 1985-07-08 | 1987-01-14 | Hag公司 | The heeling mechanism of seat support or similar device |
| JP2004147670A (en) * | 2002-10-28 | 2004-05-27 | Delta Tooling Co Ltd | Mechanism for adjusting angle of inclination of cushion of seat |
| JP2009279208A (en) * | 2008-05-22 | 2009-12-03 | Delta Tooling Co Ltd | Seat structure |
| CN102525158A (en) * | 2010-12-27 | 2012-07-04 | 国誉株式会社 | Chair |
| KR101369405B1 (en) * | 2012-09-05 | 2014-03-06 | 한국생산기술연구원 | Forward-sloping apparatus and chair using it |
| KR20140146794A (en) * | 2013-06-18 | 2014-12-29 | 김승호 | Tilting structure of chair |
| WO2016046903A1 (en) * | 2014-09-24 | 2016-03-31 | ジョンソン コントロールズ テクノロジー カンパニ－ | Vehicle seat |
| JP2015163241A (en) * | 2015-05-11 | 2015-09-10 | コクヨファニチャー株式会社 | chair |
| CN105919328A (en) * | 2016-05-30 | 2016-09-07 | 陈敏 | Seat with adjustable seat cushion |
| CN209269067U (en) * | 2018-11-26 | 2019-08-20 | 陈敏 | The structure that leans forward of seat |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109330251A (en) | 2019-02-15 |
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