CN108652303B - Up-down adjusting structure of headrest of chair - Google Patents
Up-down adjusting structure of headrest of chair Download PDFInfo
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- CN108652303B CN108652303B CN201710197072.3A CN201710197072A CN108652303B CN 108652303 B CN108652303 B CN 108652303B CN 201710197072 A CN201710197072 A CN 201710197072A CN 108652303 B CN108652303 B CN 108652303B
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- piece
- button
- sliding
- headrest
- chair
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- 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
- A47C7/36—Support for the head or the back
- A47C7/38—Support for the head or the back for the head
Abstract
The invention provides a vertical adjustment structure of a headrest of a chair, which is arranged on a chair back frame to enable the headrest to move up and down relative to the chair back frame for adjustment, and comprises a sliding part, a fixed part and a button part; when the button piece is pressed and extends towards a button groove of the fixed piece, at least one elastic part of the button piece is compressed and deformed, a button tooth row of the button piece can be displaced away from a first tooth row of the sliding piece, and the sliding piece can be displaced up and down relative to the fixed piece to synchronously adjust the up and down position of the headrest; when the sliding piece is adjusted to a new position and the pressing of the button piece is released, the button piece can be reset by the elastic restoring force of the at least one elastic part, so that the button tooth row of the button piece is also reset and is engaged with the first tooth row of the sliding piece to a new position, at the moment, the sliding piece cannot move up and down relative to the fixed piece, and the headrest is positioned at the new position after the adjustment.
Description
Technical Field
The present invention relates to a headrest up-down adjusting structure, and more particularly to a headrest for a chair, which includes a sliding member, a fixing member, and a button member.
Background
Modern people are more concerned about the comfort and functional design of the chair, so that various functional devices such as the function of moving the armrest of the chair back and forth or left and right or the function of adjusting the armrest of the chair back and forth or the headrest up and down are added for the armrest, the waist rest or the headrest of the chair.
However, in the conventional up-and-down adjustment structure of the headrest, a large force is generally directly applied to the headrest to move the headrest upward or downward, so that the force application operation often generates a large noise and requires a large force application, which causes inconvenience in operation for the old, the young, women and children.
The inventor of the present application created taiwan TW105109443, chinese CN201620252226.5, US15/149,893 and germany DE202016101985.0 in the field of chair armrests, wherein although there are button-type operation and damping gear using effects, the above patent technology is applied to the armrest of the chair, but cannot be directly applied to the headrest, and if the arrangement relationship and the operation manner between the moving member and the fixing member are different; in addition, the inventor of the present application has created CN201610844760.4 and US15/292,649 in the field of chair headrests, but the structural features of the headrest technology are basically different from the present application, so the present application proposes a solution to the prior art.
Disclosure of Invention
The main objective of the present invention is to provide a vertical adjustment structure of a headrest of a chair, which allows a user to adjust the vertical position of the headrest by simple operation, and has low impedance and low noise.
In order to achieve the above object, the present invention provides a vertical adjustment structure of a headrest of a chair, which is mounted on a backrest frame of the chair so that the headrest can move vertically relative to the backrest frame, the vertical adjustment structure comprising:
the sliding piece is a long body extending up and down, the upper end of the sliding piece is provided with a headrest connecting part for connecting with a headrest, one side of the sliding piece is provided with an inward concave space, and one side wall of the inward concave space is provided with a first tooth row extending up and down;
a fixing piece which is detachably arranged on the chair back frame and is formed by a front seat part and a rear cover part which are opposite, wherein the front seat part is provided with a first sliding groove facing the sliding piece, and a button groove is arranged on one side wall of the first sliding groove to correspond to the first tooth row of the sliding piece; wherein the rear cover part is provided with a second sliding chute facing the sliding part; the sliding part can be clamped between the first sliding groove of the front seat part and the second sliding groove of the rear cover part in a vertically sliding manner; and
a button member elastically movably fitted in the button groove of the fixing member, comprising: a pressing part exposed outside the front seat part of the fixing part for pressing; a convex key part which is integrally arranged on one side of the pressing part and extends towards the button groove of the fixing part; a button tooth row arranged on one side of the convex key part in an up-down direction and correspondingly engaged with or separated from the first tooth row of the sliding part; and at least one elastic part for providing elastic restoring force after the button piece is pressed;
when the button piece is pressed to enter the button groove of the fixed piece, the button tooth row of the button piece can be shifted to be away from the first tooth row of the sliding piece, so that the sliding piece can be shifted up and down relative to the fixed piece to synchronously adjust the up and down position of the headrest;
when the sliding piece is adjusted to a new position and the pressing of the button piece is released, the button piece can be reset by the elastic restoring force of the at least one elastic part, the button tooth row of the button piece is reset and is meshed with the first tooth row of the sliding piece to a new position, and the sliding piece and the headrest are positioned at the new position after the adjustment.
The adjustment structure, wherein: the elastic part comprises at least one obliquely extending elastic supporting leg, and the elastic supporting leg is integrally arranged on the pressing part and obliquely extends towards the button groove of the fixing part so as to be blocked on a blocking part of the front seat part to form a pressing state.
The adjustment structure, wherein: the button part is provided with a convex key part, a first spring fixing end, a second spring fixing end and a compression spring, wherein the convex key part is arranged at the head end of the button part, the fixing part is provided with the second spring fixing end corresponding to the first spring fixing end, and the compression spring is arranged between the first spring fixing end and the second spring fixing end to provide the return elastic force of the button part after being pressed.
The adjustment structure, wherein: a second row of teeth is also provided on the opposite side of the first row of teeth of the slider.
The adjustment structure, wherein: and a gear groove is arranged in the first sliding groove of the fixed part, and a damping gear with damping function is arranged in the gear groove, so that the second gear row can be correspondingly engaged on the damping gear and synchronously slide up and down when the sliding part slides up and down.
The adjustment structure, wherein: the fixing piece is assembled and combined with an upper hook piece and a lower hook piece, so that the chair back frame can be clamped between the upper hook piece and the lower hook piece, and the fixing piece is erected on the chair back frame.
The adjustment structure, wherein: the sliding part is a long straight body or a long arc-shaped body.
Compared with the prior art, the adjusting structure of the invention has the following advantages:
(1) when the button piece is pressed, a user can easily adjust the upper position and the lower position of the headrest, and when the button piece is released, the upper position and the lower position of the headrest are fixed, so that the convenience of operation of the user is improved.
(2) When the sliding part slides up and down in the fixed part, the second gear row of the sliding part can be simultaneously meshed with the damping gear of the fixed part and slides, so that the stability and the smoothness of the sliding part during the up-down sliding are improved, and the sliding noise is reduced.
Drawings
Fig. 1 is a perspective assembly view (rear view) of the headrest of the present invention fixed in a position.
Fig. 2 is a perspective assembly view of the headrest of fig. 1 adjusted to move to another higher position.
Fig. 3 is a perspective exploded view (front view) of an embodiment of the present invention.
Fig. 4 is another exploded perspective view of a portion of fig. 3.
Fig. 5 is a schematic plan view of the slider in the fixed state in the present invention.
Fig. 6 is a schematic plan view of the slider in fig. 5 in a state of being adjusted in movement.
FIG. 7 is a perspective assembly view (front view) of an embodiment of the present invention mounted to a seatback frame.
FIG. 8 is a perspective assembly view (front view) of another embodiment of the present invention mounted to a seatback frame.
Description of reference numerals: 1-adjusting the structure; 10-a slide; 10 a-front side; 11-a headrest connection; 12-an indent space; 13-a first row of teeth; 14-a second row of teeth; 20-a fixing member; 21-a front seat portion; 22-rear cover part; 23-a first runner; 24-button slot; 25-a second chute; 26-a stop; 27-a second spring fixation end; 28-gear groove; 30-a button member; 31-a pressing part; 32-a tab portion; 33-button tooth row; 34-an elastic part; 35-resilient legs; 36-a first spring fixation end; 37-compression spring; 40-a damping gear; 50-upper hook element; 60-lower hook element; 60 a-lower hook element; 60 b-lower hook element; 2-a back frame; 3-headrest.
Detailed Description
In order to make the present invention more clear and more detailed, the structure and technical features of the present invention are described in detail below with reference to the following drawings:
referring to fig. 1-8, the present invention provides an up-and-down adjusting structure 1 of a headrest 3 of a chair, for being mounted on a backrest frame 2, so that the headrest 3 can move up and down relative to the backrest frame 2 (or backrest) for adjustment, the adjusting structure 1 mainly includes a sliding member 10, a fixing member 20 and a button member 30.
The sliding member 10 is a long body extending in the up-down direction, the upper end of the sliding member is provided with a headrest connecting portion 11 for connecting with the headrest 3, the front side surface 10a of the sliding member is provided with an inward concave space 12, and on a side wall of the inward concave space 12, such as the right side wall shown in fig. 3 and 4 but not limited thereto, a first tooth row 13 with a certain length in the up-down direction is provided for defining the moving distance of the headrest 3 during up-down movement adjustment as shown in fig. 3 and 4; wherein the sliding member 10 includes a long straight body and a long arc body.
The fixed member 20 is detachably disposed on the backrest frame 2 (described later), and is composed of a front seat portion 21 and a rear cover portion 22 which are opposite to each other in the front-rear direction, wherein the front seat portion 21 has a first sliding slot 23 which is concave and faces the sliding member 10, and a button slot 24 is disposed on a side wall of the first sliding slot 23, such as the right side wall shown in fig. 3 and 4, but not limited thereto, to correspond to the first tooth row 13 of the sliding member 10; wherein the rear cover portion 22 has a second sliding slot 25 recessed toward the sliding member 10; the sliding member 10 is vertically slidably interposed between the first sliding groove 23 of the front seat 21 and the second sliding groove 25 of the rear cover 22, as shown by arrow a in fig. 2,6, and 8.
The button member 30 is elastically and movably embedded in the button groove 24 of the fixed member 20 and is interposed between the front seat portion 21 of the fixed member 20 and the slider 10; the button 30 includes a pressing portion 31, a key portion 32, a button tooth row 33 and at least one elastic portion 34.
The pressing portion 31 is protruded out of the front seat portion 21 of the fixing member 20 for pressing as shown by arrow B in fig. 2,6 and 8; the protruding key portion 32 is integrally formed on one side of the pressing portion 31 and extends toward the button slot 24 of the fixing member 20; the up-down button teeth 33 are integrally formed on one side of the key 32 to be engaged with the first teeth 13 of the slider 10 (as shown in fig. 5) or disengaged from the first teeth 13 (as shown in fig. 6); the at least one elastic portion 34 is used to provide an elastic restoring force after the button member 30 is pressed.
The at least one elastic portion 34 of the button 30 further includes, but is not limited to, at least one obliquely extending elastic leg 35, the elastic leg 35 is integrally formed on the pressing portion 31 and on the same side of the pressing portion 31 as the protruding key portion 32, and extends obliquely toward the button slot 24 of the fixing member 20 to stop on a stopping portion 26 of the front seat portion 21 to form a pressing state, so as to increase the elastic restoring force of the button 30 after the pressing force is released.
When the sliding member 10 is adjusted to a new position and the pressing force of the button member 30 is released, the button member 30 is reset by the elastic restoring force of the at least one elastic portion 34 (as shown by arrow D in fig. 1, 5 and 7), so that the button teeth row 33 of the button member 30 is also reset and is engaged with the first teeth row 13 of the rail member 10 at a new position, and at this time, the sliding member 10 cannot move up and down relative to the fixing member 20, and the headrest 3 is positioned at the new position after adjustment.
A first spring fixing end 36 is further provided at the head end of the key portion 32 of the button member 30, but not limited thereto; wherein the fixing member 20 further has a second spring fixing end 27 corresponding to the first spring fixing end 36, and a compression spring 37 is disposed between the first and second spring fixing ends 36, 27 to provide a return elastic force after the button member 30 is pressed, so that the compression spring 37 can also be regarded as a part of the at least one elastic portion 34.
When the button 30 is pressed to extend into the button slot 24 of the fixing member 20 (as shown by arrow B in fig. 2,6 and 8), the at least one elastic portion 34 is compressed and deformed, the button teeth row 33 of the button 30 is displaced away from the first teeth row 13 of the slider 10, and the slider 10 is displaced up and down relative to the fixing member 20 to synchronously adjust the up and down position of the headrest 3 (as shown by arrow a in fig. 2,6 and 8).
A second row of teeth 14 is further provided on a side wall of the slider 10 opposite to the first row of teeth 13, such as, but not limited to, the left side wall shown in fig. 3 and 4; wherein, a gear groove 28 is further disposed on the side wall of the first sliding groove 23 of the fixed member 20 opposite to the button groove 24, but not limited thereto, and a damping gear 40 having a damping type rotation function is disposed in the gear groove 28, and the second row of teeth 14 of the sliding member 10 can be correspondingly engaged with the damping gear 40 (as shown in fig. 4-6), so that when the sliding member 10 slides up and down (as shown by arrow a in fig. 2,6 and 8) relative to the fixed member 20, the second row of teeth 14 of the sliding member 10 can be engaged with the damping gear 40 and slide up and down (as shown by arrow C in fig. 6), so that the sliding member 10 can achieve a stable and smooth damping effect and low noise effect when sliding up and down.
In addition, an upper hook 50 and a lower hook 60 are further assembled and combined on the fixing member 20 as shown in fig. 7 and 8, but not limited thereto, so that when the headrest is installed, the backrest frame 2 can be clamped between the upper hook 50 and the lower hook 60, so that the headrest 3 can be erected above the backrest frame 2; the shape or size of the lower hook 60 is not limited, and it may be designed to vary with the shape or size of the back frame 2, such as the lower hook 60a with a longer hook as shown in fig. 7, or the lower hook 60b with a shorter hook as shown in fig. 8, which is advantageous for adapting the up-down adjustment structure 1 of the present invention to different back frames 2.
Compared with the prior art, the adjusting structure 1 of the invention has the following advantages:
(1) when the button 30 is pressed, the user can easily adjust the up-down position of the headrest 3, and when the button 30 is released, the up-down position of the headrest 3 is fixed, which is beneficial to increase the convenience of the user in operation.
(2) When the sliding element 10 slides up and down in the fixed element 20, the second row of teeth 14 of the sliding element 10 can simultaneously engage with the damping gear 40 of the fixed element 20 and slide, which is helpful to improve the stability and smoothness of the sliding element 10 during sliding up and down and reduce the sliding noise.
The foregoing is merely a preferred embodiment of this invention, which is intended to be illustrative, not limiting; those skilled in the art will appreciate that many variations, modifications, and even equivalent variations are possible within the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The utility model provides an upper and lower adjustment structure of headrest of chair, supplies to install on the back of the chair frame of this chair so that this headrest can do the adjustment of moving from top to bottom relatively this back of the chair frame, and its characterized in that contains:
the sliding piece is a long body extending up and down, the upper end of the sliding piece is provided with a headrest connecting part for connecting with a headrest, one side of the sliding piece is provided with an inward concave space, and one side wall of the inward concave space is provided with a first tooth row extending up and down;
a fixing piece which is detachably arranged on the chair back frame and is formed by a front seat part and a rear cover part which are opposite, wherein the front seat part is provided with a first sliding groove facing the sliding piece, and a button groove is arranged on one side wall of the first sliding groove to correspond to the first tooth row of the sliding piece; wherein the rear cover part is provided with a second sliding chute facing the sliding part; the sliding part can be clamped between the first sliding groove of the front seat part and the second sliding groove of the rear cover part in a vertically sliding manner; and
a button member elastically movably fitted in the button groove of the fixing member, comprising: a pressing part exposed outside the front seat part of the fixing part for pressing; a convex key part which is integrally arranged on one side of the pressing part and extends towards the button groove of the fixing part; a button tooth row arranged on one side of the convex key part in an up-down direction and correspondingly engaged with or separated from the first tooth row of the sliding part; and at least one elastic part for providing elastic restoring force after the button piece is pressed;
when the button piece is pressed to enter the button groove of the fixed piece, the button tooth row of the button piece can be shifted to be away from the first tooth row of the sliding piece, so that the sliding piece can be shifted up and down relative to the fixed piece to synchronously adjust the up and down position of the headrest;
when the sliding piece is adjusted to a new position and the pressing of the button piece is released, the button piece can be reset by the elastic restoring force of the at least one elastic part, the button tooth row of the button piece is reset and is meshed with the first tooth row of the sliding piece to a new position, and the sliding piece and the headrest are positioned at the new position after the adjustment.
2. The upward and downward adjustment structure of a headrest of a chair according to claim 1, wherein: the elastic part comprises at least one obliquely extending elastic supporting leg, and the elastic supporting leg is integrally arranged on the pressing part and obliquely extends towards the button groove of the fixing part so as to be blocked on a blocking part of the front seat part to form a pressing state.
3. The upward and downward adjustment structure of a headrest of a chair according to claim 1, wherein: the button part is provided with a convex key part, a first spring fixing end, a second spring fixing end and a compression spring, wherein the convex key part is arranged at the head end of the button part, the fixing part is provided with the second spring fixing end corresponding to the first spring fixing end, and the compression spring is arranged between the first spring fixing end and the second spring fixing end to provide the return elastic force of the button part after being pressed.
4. The upward and downward adjustment structure of a headrest of a chair according to claim 1, wherein: a second row of teeth is also provided on the opposite side of the first row of teeth of the slider.
5. The upward and downward adjustment structure of a headrest of a chair according to claim 4, wherein: and a gear groove is arranged in the first sliding groove of the fixed part, and a damping gear with damping function is arranged in the gear groove, so that the second gear row can be correspondingly engaged on the damping gear and synchronously slide up and down when the sliding part slides up and down.
6. The upward and downward adjustment structure of a headrest of a chair according to claim 1, wherein: the fixing piece is assembled and combined with an upper hook piece and a lower hook piece, so that the chair back frame can be clamped between the upper hook piece and the lower hook piece, and the fixing piece is erected on the chair back frame.
7. The upward and downward adjustment structure of a headrest of a chair according to claim 1, wherein: the sliding part is a long straight body or a long arc-shaped body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710197072.3A CN108652303B (en) | 2017-03-29 | 2017-03-29 | Up-down adjusting structure of headrest of chair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710197072.3A CN108652303B (en) | 2017-03-29 | 2017-03-29 | Up-down adjusting structure of headrest of chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108652303A CN108652303A (en) | 2018-10-16 |
| CN108652303B true CN108652303B (en) | 2020-04-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710197072.3A Active CN108652303B (en) | 2017-03-29 | 2017-03-29 | Up-down adjusting structure of headrest of chair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108652303B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109793383A (en) * | 2017-11-17 | 2019-05-24 | 广力达企业有限公司 | General-using type headrest clamp structure |
| US11737565B2 (en) * | 2019-12-31 | 2023-08-29 | Wen-Ping Hsieh | Quickly installed headrest adjustment device |
| CN113475887B (en) * | 2021-07-29 | 2023-12-26 | 恒林家居股份有限公司 | Chair with headrest |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4830434A (en) * | 1986-06-28 | 1989-05-16 | Aisin Seiki Kabushiki Kaisha | Adjustable head rest device for vehicle |
| US6132001A (en) * | 2000-02-08 | 2000-10-17 | Su; Wen-Fa | Adjustment device for an arm of a chair |
| CN1323710A (en) * | 2000-02-10 | 2001-11-28 | Itw汽车产品有限两合公司 | Mechanical type head-rest drawn-back device having memory function |
| CN2684618Y (en) * | 2004-01-30 | 2005-03-16 | 明门实业股份有限公司 | Safety belt regulating device |
| TWM308019U (en) * | 2006-09-19 | 2007-03-21 | Yuan-Jr Wen | Pillow structure of chair |
| CN203483130U (en) * | 2013-09-05 | 2014-03-19 | 谭国柱 | Three-way adjustable headrest |
| CN205696735U (en) * | 2016-03-29 | 2016-11-23 | 广力达企业有限公司 | Armrest of seat regulation mechanism module |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57110537A (en) * | 1980-12-27 | 1982-07-09 | Tachikawa Spring Co Ltd | Headrest device for vehiclar seat or the like |
-
2017
- 2017-03-29 CN CN201710197072.3A patent/CN108652303B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4830434A (en) * | 1986-06-28 | 1989-05-16 | Aisin Seiki Kabushiki Kaisha | Adjustable head rest device for vehicle |
| US6132001A (en) * | 2000-02-08 | 2000-10-17 | Su; Wen-Fa | Adjustment device for an arm of a chair |
| CN1323710A (en) * | 2000-02-10 | 2001-11-28 | Itw汽车产品有限两合公司 | Mechanical type head-rest drawn-back device having memory function |
| CN2684618Y (en) * | 2004-01-30 | 2005-03-16 | 明门实业股份有限公司 | Safety belt regulating device |
| TWM308019U (en) * | 2006-09-19 | 2007-03-21 | Yuan-Jr Wen | Pillow structure of chair |
| CN203483130U (en) * | 2013-09-05 | 2014-03-19 | 谭国柱 | Three-way adjustable headrest |
| CN205696735U (en) * | 2016-03-29 | 2016-11-23 | 广力达企业有限公司 | Armrest of seat regulation mechanism module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108652303A (en) | 2018-10-16 |
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