CN2607879Y - Head-rest for chair - Google Patents
Head-rest for chair Download PDFInfo
- Publication number
- CN2607879Y CN2607879Y CN 03243631 CN03243631U CN2607879Y CN 2607879 Y CN2607879 Y CN 2607879Y CN 03243631 CN03243631 CN 03243631 CN 03243631 U CN03243631 U CN 03243631U CN 2607879 Y CN2607879 Y CN 2607879Y
- Authority
- CN
- China
- Prior art keywords
- ratchet
- headrest
- tooth bar
- angle
- variable
- 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.)
- Expired - Fee Related
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- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The chair headrest provided by the utility model consists of a body of the chair headrest and a framework 3, one end of which is imbedded in the body of the chair headrest; the framework is connected with the body of the chair headrest with a variable-angle device of chair headrest consisting of a ratchet mechanism, and the variable-angle device of the chair headrest is arranged in the internal of the body of the chair headrest; the chair headrest provided by the utility model adopts a ratchet mechanism arranged between the body of the chair headrest and the framework rod of the chair headrest to realize the function of varying angle between the chair headrest and backrest.
Description
Technical field the utility model relates to a kind of headrest, especially the variable-angle device in the headrest.
The background technology headrest, as be used in movable headrest on the automotive seat, with its upper skeleton headrest is inserted in the hole on the seat back, skeleton inserts on the foot lever part of seat back recess, can match with set bullet card in the hole and regulates the upper-lower position of headrest.In fact, when people use headrest, for headrest relatively the head requirement of doing angle action be very strong, but do not have this headrest at present.
Summary of the invention is at above-mentioned deficiency, and technical problem to be solved in the utility model is exactly to change the present situation that does not have adjustable bed rearrangement chair head rest angle at present, and a kind of headrest that makes its change with respect to the angle of the head of people on the seat is provided.
The headrest that the utility model provides, the skeleton that is embedded in the headrest body by a headrest body and an end constitutes, wherein skeleton is connected with the headrest body by the variable-angle device of a headrest of forming with ratchet mechanism, and the variable-angle device of this headrest is installed in the headrest body interior.
The headrest that the utility model provides, the concrete structure of the variable-angle device of said headrest is: one, ratchet portions: ratchet is fixedly mounted on the skeleton of headrest and is installed in ratchet shaft in the housing [10] of the variable-angle device of headrest; Ratchet is a tooth bar 6, and an end of this ratchet tooth bar 6 has a projection, and this projection top is greater than on the ratchet tooth bar other tooth tops apart from the distance of ratchet shaft apart from the distance of ratchet shaft; The other end of ratchet tooth bar has a long hook of arc that triggers to the tooth direction.Two, ratchet part: ratchet 8 is installed in pawl axis 7 in the housing 10 of variable-angle device of headrest, the shape of ratchet is to be the lever of fulcrum with the pawl axis, the other end that is the relative pawl axis of ratchet has a segment distance apart from pawl axis, and the other end of the relative pawl axis of this ratchet has an angle of containing pawl axis; Ratchet is installed from the direction that the projection on the ratchet tooth bar points to the long hook of arc that upwards triggers on the ratchet with crown.Three, spring section: spring is a reed 9, and the free end of reed is against on the angle of the other end of ratchet 8 relative pawl axis 7, and reed is against a side of this angle ratchet crown when ratchet and the engagement of ratchet tooth bar.Four, housing parts: the housing 10 of the variable-angle device of headrest is hard-wired with the headrest body.
From described concrete structure as seen, when pulling headrest, headrest is swung according to ratchet shaft.The swing of headrest can drive pawl axis and also move according to ratchet shaft, because of ratchet portions is so that the ratchet tooth bar that is fixedly mounted on the skeleton of headrest can not move, and make the ratchet crown slip over the ratchet tooth top, ratchet is in reed supports the teeth groove that inserts under the effect of power on the next ratchet tooth bar, and the non-return effect between ratchet and the ratchet can back not swung headrest voluntarily or under external force.Ratchet whenever slips over a tooth top on the ratchet tooth bar, headrest just changes one grade and the seat back angle between leaning on.But when headrest is further pulled the sliding projection top of going up on ratchet tooth bar one end of crown on ratchet when going up, because of this projection is risen in other tooth tops, the pendulum angle that makes ratchet increases and surpasses the critical angle that a side of the angle ratchet crown on the other end that reed is against the relative pawl axis of ratchet changes and make reed be against the opposite side at angle, and then ratchet is broken away from contact with ratchet.Ratchet breaks away from after the ratchet tooth bar contacts, headrest can back be pulled under the effect of external force, but when headrest is back pulled when making the long hook of arc that upwards triggers set on the ratchet and the ratchet tooth bar other end, ratchet under the guiding of the arc on the long hook of arc to ratchet tooth bar direction swing and get back to the ratchet tooth bar on the state of tooth engagement, reed also is against on the angle of the other end of the relative pawl axis of ratchet the side to the ratchet crown again.
Headrest provided by the utility model, wherein ratchet 8 has a plurality of crowns, but the number of teeth on the ratchet is less than the number of teeth on the ratchet.The ratchet that adopts a plurality of numbers of teeth is the non-return effect that can strengthen between ratchet and the ratchet, to reduce the requirement to material.And the difference of the ratchet number of teeth and the ratchet number of teeth can be determined according to the required adjusting shelves of headrest number.
Headrest provided by the utility model, wherein the outside circle of ratchet tooth bar is to be one section arc in the center of circle with the ratchet shaft.
Headrest provided by the utility model adopts the ratchet mechanism be installed between headrest body and the headrest bone bar to realize headrest and the seat back angle function between leaning on.
Description of drawings Fig. 1 cuts open figure for the master of the utility model one embodiment looks;
Fig. 2 looks for the left side of part among Fig. 1 and cuts open figure.
Specific embodiments as shown in Figure 1, 2, in headrest, be embedded with the housing 10 of the variable-angle device of a headrest, cross bar on the skeleton 3 of the headrest of Jiong shape passes this housing, in housing, also welded a ratchet tooth bar 6 on this cross bar, in housing 10, also has an axle of installing abreast with this cross bar, this axle is a pawl axis 7, and ratchet 8 is installed on the pawl axis.The number of teeth of ratchet tooth bar is 8, and the number of teeth of ratchet is between 4, two teeth to be that the angle on summit is 10 degree with the ratchet shaft.The headrest body is with the head rest of headrest cover 1, foam 2 of being filled in the head rest cover and lining shell 4 formations that are provided with at inner core, the variable-angle device of headrest is exactly to place this lining shell together with door shape skeleton 3 parts.
Claims (5)
1, a kind of headrest, the skeleton that is embedded in the headrest body by a headrest body and an end constitutes, it is characterized in that skeleton wherein is connected with the headrest body by the variable-angle device of a headrest of forming with ratchet mechanism, the variable-angle device of this headrest is installed in the headrest body interior.
2, headrest as claimed in claim 1 is characterized in that the concrete structure of the variable-angle device of said headrest is:
I. ratchet portions, ratchet are fixedly mounted on the skeleton of headrest and are installed in ratchet shaft in the housing [10] of the variable-angle device of headrest; Ratchet is a tooth bar, and an end of this ratchet tooth bar [6] has a projection, and this projection top is greater than on the ratchet tooth bar other tooth tops apart from the distance of ratchet shaft apart from the distance of ratchet shaft; The other end of ratchet tooth bar [6] has a long hook of arc that triggers to the tooth direction;
Ii. ratchet part, ratchet [8] is installed in pawl axis [7] in the housing [10] of the variable-angle device of headrest, and the shape of ratchet is to be the lever of fulcrum with the pawl axis, and promptly the other end of the relative pawl axis of ratchet has a segment distance apart from pawl axis; The other end of the relative pawl axis of this ratchet has an angle of containing pawl axis; Ratchet is installed from the direction that the projection on the ratchet tooth bar [6] points to the long hook of arc that upwards triggers on the ratchet tooth bar [6] with crown;
Iii. spring section, spring is a reed [9], and the free end of reed is against ratchet [8] relatively on the angle of the other end of pawl axis [7], and reed is against a side of this angle ratchet crown when ratchet meshes with ratchet tooth bar [6];
Iv. housing parts, the housing of the variable-angle device of headrest [10] is hard-wired with the headrest body.
3, headrest as claimed in claim 1 or 2 it is characterized in that ratchet [8] has a plurality of crowns, but the number of teeth on the ratchet is less than the number of teeth on the ratchet.
4, headrest as claimed in claim 1 or 2, wherein the outside circle of ratchet tooth bar [6] is to be one section arc in the center of circle with the ratchet shaft.
5, headrest as claimed in claim 3, wherein the outside circle of ratchet tooth bar [6] is to be one section arc in the center of circle with the ratchet shaft, a plurality of teeth on the ratchet [8] are also formed the arc-shaped rack that is meshed with said arc-shaped rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03243631 CN2607879Y (en) | 2003-04-01 | 2003-04-01 | Head-rest for chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03243631 CN2607879Y (en) | 2003-04-01 | 2003-04-01 | Head-rest for chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2607879Y true CN2607879Y (en) | 2004-03-31 |
Family
ID=34169063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03243631 Expired - Fee Related CN2607879Y (en) | 2003-04-01 | 2003-04-01 | Head-rest for chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2607879Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
-
2003
- 2003-04-01 CN CN 03243631 patent/CN2607879Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN108420214B (en) * | 2017-02-28 | 2020-02-21 | 恒林家居股份有限公司 | Chair with waist rest adjusting function |
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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: 20040331 Termination date: 20120401 |