CN201011969Y - Chair backrest - Google Patents
Chair backrest Download PDFInfo
- Publication number
- CN201011969Y CN201011969Y CNU2006201554509U CN200620155450U CN201011969Y CN 201011969 Y CN201011969 Y CN 201011969Y CN U2006201554509 U CNU2006201554509 U CN U2006201554509U CN 200620155450 U CN200620155450 U CN 200620155450U CN 201011969 Y CN201011969 Y CN 201011969Y
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- CN
- China
- Prior art keywords
- ratchet
- support
- connecting plate
- protection pad
- chair
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- 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.)
- Expired - Fee Related
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- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The utility model belongs to the technical field of furniture manufacturing and relates to a chair, in particular to a support back for chair provided with a lumbar support cushion. The support back for chair includes a lumbar support cushion arranged on the support back and contacting with the lumbar vertebra of human body; the lumbar support cushion is provided with an angle adjusting device, which includes a connecting plate and a support, a fixing seat and a ratchet mechanism arranged on both ends of the connecting plate; the lumbar support cushion is fixed on the connecting plate; the support is welded on the connecting plate; the lower end of the support is opened with an installation groove; the ratchet mechanism includes a ratchet and a pawl, which are respectively hinged to the wall of both sides of the installation groove; wherein, the ratchet is connected with the fixing seat of the bottom plate of the chair support; the hinge point of the ratchet is also provided with a sector moveable block; the ratchet is provided with a gag lever post for controlling the rotating angle of the sector moveable block. The ratchet corresponding to the pawl is divided into a left ratchet and a right ratchet; the sector moveable block is arranged between the two ratchets. With the structure, the support back for chair has advantages of low cost, convenience and flexibility in operation.
Description
Technical field
The utility model belongs to technical field of furniture manufacturing, relates to a kind of seat, particularly a kind of backrest that is provided with Waist protection pad on the chair back.
Background technology
Present backrest shape generally all is changeless, and long-term incorrect sitting posture causes people's diseases such as lumber ertebral disc protrusion, easily particularly for higher at its incidence probability of deskman for a long time.Existing backrest angle adjustable seat, though people's comfort for sitting posture degree is had to a certain degree improvement, but sitting posture difference because of the people, its waist against the position can change along with backrest angle changes, so if the shape of backrest does not change, also cause diseases such as lumber ertebral disc protrusion easily, so furniture designing for manufacturing teacher has designed a kind of seat that a Waist protection pad is installed on the backrest that is positioned at human lumbar portion, be provided with an airbag apparatus in the Waist protection pad, aeration quantity by the control air bag changes the Waist protection pad height, make people all can make waist be in a comfortable angle at any sitting posture state, reduce the lumbar fatigue degree, the prevention lumber ertebral disc protrudes incidence probability, but adopts airbag apparatus to make the production cost of seat higher, and gas replenishment process is slower, and is not easy to operate.
Summary of the invention
The utility model at present seat deposit problem, design a kind of low cost, easy to operate, flexibly with the backrest of Waist protection pad.
The purpose of this utility model is achieved in that a kind of backrest, comprises a Waist protection pad that contacts with the human body lumbar vertebra that is located on the backrest, and it is characterized in that: described Waist protection pad is provided with an angle regulator.
Described angle regulator comprises connecting plate and is positioned at support, holder and the ratchet mechanism at connecting plate two ends; Waist protection pad is fixed on the connecting plate, support is welded on the connecting plate, have mounting groove in the support lower end, described ratchet mechanism comprises ratchet, ratchet, be hinged on respectively on the two side of mounting groove, wherein ratchet links to each other with holder on being fixed on seat back panel, also is provided with a sector movable piece at the ratchet pin joint, and ratchet is provided with the pin of this sector movable piece anglec of rotation of control.
The ratchet of described ratchet correspondence is divided into parallel two in the left and right sides, and the sector movable piece is positioned in the middle of two ratchets.
Good effect of the present utility model: because angle regulator has adopted ratchet mechanism, utilize send to the intermittence of ratchet mechanism, braking function, can make Waist protection pad carry out unidirectional angular adjustment, make Waist protection pad height difference, thereby satisfy the various sitting posture needs of user, when the Waist protection pad angle needs timing back, the Waist protection pad angle is transferred to maximum, the ratchet of ratchet mechanism is separated with engagement between the ratchet, and be resisted against on the sector movable piece external arc, then Waist protection pad is recalled to and be transferred to required angle again behind the initial position and get final product, pin carries out spacing to the anglec of rotation of sector movable piece, thereby the tooth matching angle of control ratchet mechanism ratchet and pawl rotates angle regulator in the reasonable scope, adopts the Waist protection pad of this angle regulator, adopt the air bag Waist protection pad relatively, belong to pure mechanical system control, easy to operate, cost is lower.
As further improvement of the utility model, the ratchet of ratchet correspondence is divided into parallel two in the left and right sides, and the sector movable piece is positioned in the middle of two ratchets, and such ratchet mechanism operates steadily, load is big.
Description of drawings
Fig. 1 is the chair backrest structure schematic diagram;
Fig. 2 is the A portion partial enlarged drawing of Fig. 1;
Fig. 3 is ratchet mechanism structural representation (one);
Fig. 4 is ratchet mechanism structural representation (two);
Fig. 5 is ratchet mechanism structural representation (three);
Fig. 6 is ratchet mechanism structural representation (four).
The specific embodiment
Below in conjunction with accompanying drawing the utility model specific embodiment is elaborated.
As Fig. 1, Fig. 2, shown in Figure 3: backrest described in the utility model, comprise a Waist protection pad 2 that contacts with the human body lumbar vertebra that is located on the backrest 1, this Waist protection pad 2 is provided with an angle regulator 3.Angle regulator 3 comprises connecting plate 4 and is positioned at support 5, holder 6 and the ratchet mechanism 7 at connecting plate 4 two ends; Waist protection pad 2 is fixed on the connecting plate 4, support 5 is welded on the connecting plate 4, have mounting groove 50 in support 5 lower ends, described ratchet mechanism 7 comprises ratchet 70 and ratchet 71, be hinged on the two side 51 of mounting groove 50 by bearing pin 8 respectively, wherein ratchet 70 links to each other with holder 6 on being fixed on seat back panel 10, also be provided with a sector movable piece 9 at ratchet 70 pin joints, ratchet 70 is provided with the pin 700 of these sector movable piece 9 anglecs of rotation of control, the position difference that pin 700 is provided with directly influences the adjustable angle scope of angle regulator 3.For ratchet mechanism 7 is operated steadily, load is better, and the ratchet 70 of these ratchet 71 correspondences is divided into parallel two in the left and right sides, and sector movable piece 9 is between two ratchets 70.Operation principle is as follows: Fig. 3-Fig. 6 is in Waist protection pad 2 adjustment processes, ratchet mechanism 7 residing different conditions, Figure 3 shows that the schematic diagram when Waist protection pad 2 is in original state, at this moment, Waist protection pad 2 is close on the seat back panel 10, Fig. 4 is the structural representation when Waist protection pad 2 upwards is raised to certain angle, when upwards lift Waist protection pad 2 lower ends, drive hinging pin shaft 8 rotations of ratchet 71 with ratchet 70, ratchet 71 is stirred 9 rotations of sector movable piece simultaneously, when being transferred to proper height, open openhanded, at this moment, ratchet 71 is under the elastic force of spring 73, be resisted against the gear bottom of ratchet 70, stop the counter motion of Waist protection pad 2, Waist protection pad 2 highly can not descend automatically when making the people back lean against on the Waist protection pad 2.Structural representation when Fig. 5 is lifted to peak for Waist protection pad 2, at this moment, pin 700 stops sector movable piece 9 moving lines, and ratchet 71 has been abutted on sector movable piece 9 external arc 90, and ratchet 70, ratchet 71 separate, but Waist protection pad 2 both forward and reverse directions rotate arbitrarily.When being rotated down Fig. 6 state, sector movable piece 9 is stopped that by another pin 700 Waist protection pad 2 is compressed to backrest 1 again, and ratchet mechanism is got back to Fig. 3 original state again.The backrest of this structure can be applicable to all belong to protection domain of the present utility model on the couch such as office seating, armchair, many person sofas.
Claims (3)
1. a backrest comprises a Waist protection pad that contacts with the human body lumbar vertebra that is located on the backrest, and it is characterized in that: described Waist protection pad is provided with an angle regulator.
2. backrest according to claim 1 is characterized in that: described angle regulator comprises connecting plate and is positioned at support, holder and the ratchet mechanism at connecting plate two ends; Waist protection pad is fixed on the connecting plate, support is welded on the connecting plate, have mounting groove in the support lower end, described ratchet mechanism comprises ratchet, ratchet, be hinged on respectively on the two side of mounting groove, wherein ratchet links to each other with holder on being fixed on seat back panel, also is provided with a sector movable piece at the ratchet pin joint, and ratchet is provided with the pin of this sector movable piece anglec of rotation of control.
3. backrest according to claim 2 is characterized in that: the ratchet of described ratchet correspondence is divided into parallel two in the left and right sides, and the sector movable piece is positioned in the middle of two ratchets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201554509U CN201011969Y (en) | 2006-12-29 | 2006-12-29 | Chair backrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201554509U CN201011969Y (en) | 2006-12-29 | 2006-12-29 | Chair backrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201011969Y true CN201011969Y (en) | 2008-01-30 |
Family
ID=39023755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201554509U Expired - Fee Related CN201011969Y (en) | 2006-12-29 | 2006-12-29 | Chair backrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201011969Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104257147A (en) * | 2014-09-18 | 2015-01-07 | 浙江凯帝家具有限公司 | Waist pillow for vehicle |
| CN106690964A (en) * | 2016-12-12 | 2017-05-24 | 浙江恒林椅业股份有限公司 | Chair with backrest adjusting device |
| CN106859105A (en) * | 2017-02-28 | 2017-06-20 | 浙江恒林椅业股份有限公司 | A kind of chair with Lumbar regulatory function |
| CN107259854A (en) * | 2017-07-26 | 2017-10-20 | 严驿 | Prevent the band back cushion seat of lumbar vertebra disease |
| CN108420214A (en) * | 2017-02-28 | 2018-08-21 | 浙江恒林椅业股份有限公司 | A kind of chair with Lumbar regulatory function |
| WO2018157781A1 (en) * | 2017-02-28 | 2018-09-07 | 浙江恒林椅业股份有限公司 | Chair with lumbar support adjusting function |
| CN110367726A (en) * | 2019-08-12 | 2019-10-25 | 温州医科大学 | A kind of sleep seat for alleviating vertebra discomfort |
| CN111578085A (en) * | 2020-06-17 | 2020-08-25 | 河南省文物建筑保护研究院 | A harmless fixed chassis device for tripod tiptoe |
| CN111938357A (en) * | 2019-05-16 | 2020-11-17 | 李万山 | Waist movement health care chair |
| CN112674519A (en) * | 2019-10-19 | 2021-04-20 | 李万山 | Combined seat lumbar support frame assembly |
| CN113892773A (en) * | 2020-07-06 | 2022-01-07 | 李万山 | Portable waist motion health care cushion |
-
2006
- 2006-12-29 CN CNU2006201554509U patent/CN201011969Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104257147A (en) * | 2014-09-18 | 2015-01-07 | 浙江凯帝家具有限公司 | Waist pillow for vehicle |
| CN104257147B (en) * | 2014-09-18 | 2017-01-18 | 浙江凯帝家具有限公司 | Waist pillow for vehicle |
| CN106690964A (en) * | 2016-12-12 | 2017-05-24 | 浙江恒林椅业股份有限公司 | Chair with backrest adjusting device |
| WO2018157781A1 (en) * | 2017-02-28 | 2018-09-07 | 浙江恒林椅业股份有限公司 | Chair with lumbar support adjusting function |
| CN108420214A (en) * | 2017-02-28 | 2018-08-21 | 浙江恒林椅业股份有限公司 | A kind of chair with Lumbar regulatory function |
| CN106859105A (en) * | 2017-02-28 | 2017-06-20 | 浙江恒林椅业股份有限公司 | A kind of chair with Lumbar regulatory function |
| CN108420214B (en) * | 2017-02-28 | 2020-02-21 | 恒林家居股份有限公司 | Chair with waist rest adjusting function |
| CN107259854A (en) * | 2017-07-26 | 2017-10-20 | 严驿 | Prevent the band back cushion seat of lumbar vertebra disease |
| CN111938357A (en) * | 2019-05-16 | 2020-11-17 | 李万山 | Waist movement health care chair |
| CN110367726A (en) * | 2019-08-12 | 2019-10-25 | 温州医科大学 | A kind of sleep seat for alleviating vertebra discomfort |
| CN112674519A (en) * | 2019-10-19 | 2021-04-20 | 李万山 | Combined seat lumbar support frame assembly |
| CN111578085A (en) * | 2020-06-17 | 2020-08-25 | 河南省文物建筑保护研究院 | A harmless fixed chassis device for tripod tiptoe |
| CN113892773A (en) * | 2020-07-06 | 2022-01-07 | 李万山 | Portable waist motion health care cushion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080130 Termination date: 20100129 |