CN112674520B - Chair and back cushion adjusting mechanism thereof - Google Patents
Chair and back cushion adjusting mechanism thereof Download PDFInfo
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- CN112674520B CN112674520B CN202011637005.7A CN202011637005A CN112674520B CN 112674520 B CN112674520 B CN 112674520B CN 202011637005 A CN202011637005 A CN 202011637005A CN 112674520 B CN112674520 B CN 112674520B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 34
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention relates to a chair and a cushion adjusting mechanism thereof, which comprises a tray, wherein the tray comprises a tailstock, a top seat used for being connected with the seat, a base used for being connected with chair legs, a cushion, a support piece, a linkage piece and a locking pull rod, wherein the bottom section of the support piece is hinged with the tailstock, the top section of the support piece is hinged with the cushion, one end of the linkage piece is in sliding connection with the support piece, the other end of the linkage piece is in sliding connection with the top seat, a locking mechanism is arranged between the linkage piece and the top seat, and when the locking mechanism is locked, the linkage piece and the cushion are locked and cannot move; according to the scheme, the control mechanism of the back cushion is separated from the tray, so that the tray structure is further simplified.
Description
Technical Field
The invention relates to the field of furniture, in particular to a chair and a back cushion adjusting mechanism thereof.
Background
In the process of daily work and study, long-time sitting and standing can bring harm to the spine and the cervical vertebra, damage to the waist is also larger, a control mechanism of a chair back in a traditional chair is often arranged in a tray, the internal structure of the tray is more complicated, and the chair back is usually only fixed on a tailstock of a supporting plate and also has failure risk.
Chinese patent document publication No. CN 201295010Y: an adjustable chair is composed of back, chair seat, headrest, armrests, waist pillow and combined body, which are mutually combined and locked, the headrest is connected to back, the headrest can be up-down regulated relative to back, the waist pillow is connected to back, the waist pillow can be adjusted back and forth relative to the chair back, the armrests are connected with the chair back, and the armrests can swing left and right and turn upwards relative to the chair back to be flush with the chair back, so that a user can adjust the head pillow according to own body and needs when sitting on the chair; in this document it is mentioned that the lumbar pillow is connected to the back of the chair; in the scheme, the chair back or the waist rest is fixed and can not specially support the key points of the human body according to the different heights of the human body.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a chair that provides support, simplifies a tray structure, and is more stable.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a cushion adjustment mechanism, includes the tray, the tray includes the tailstock, is used for connecting the footstock of seat support and the base that is used for connecting the chair foot, tailstock and base swing joint still include cushion, support piece, linkage piece and locking pull rod, support piece bottom section with the tailstock is articulated, support piece's top section with the cushion is articulated, the one end of linkage piece with support piece sliding connection, the other end of linkage piece with footstock sliding connection, the linkage piece with be equipped with locking mechanism between the footstock, when locking mechanism locking, the linkage piece with the cushion is by the unable removal of locking.
Preferably, a first connecting plate is fixedly connected to the top section of the support, a second connecting plate is hinged to the first connecting plate, and the other end of the second connecting plate is fixed to the back cushion.
Preferably, the support member is provided with a second sliding groove, one end of the linkage member is provided with a first limiting shaft in a penetrating mode, and two ends of the first limiting shaft are located in the second sliding groove and are in sliding fit up and down.
Preferably, a limiting plate is fixed on the top seat, and the linkage piece is in sliding connection with the front linkage piece and the rear linkage piece of the limiting plate.
Preferably, first sliding grooves are formed in end walls of two sides of the limiting plate, the linkage piece is rotationally connected with a second limiting shaft, two sides of the second limiting shaft are located in the first sliding grooves, and the two sides of the second limiting shaft are in front-back sliding fit.
Preferably, the locking mechanism comprises a locking pull rod, at least one locking hole is formed in the linkage piece, and the locking mechanism is locked when the locking pull rod is inserted into the locking hole.
Preferably, the locking pull rod is arranged on the limiting plate, the locking pull rod comprises a locking shaft and a locking spring, the locking spring is used for resetting the locking shaft, and the locking shaft is connected with the locking hole of the linkage part in a plug-in mode.
Preferably, the device further comprises a tension spring, one end of the tension spring is connected with the linkage piece, the other end of the tension spring is fixed on the limiting plate, one end of the tension spring is connected with the linkage piece, and the other end of the tension spring is fixed on the limiting plate.
Preferably, the back cushion is a chair back or a lumbar support.
A chair comprising a cushion adjustment mechanism as described above.
In the technical scheme, the backrest is different from the backrest fixed tailstock, the back cushion is hinged with the tailstock, and in the locked state of the back cushion, the tailstock rotates to drive the back cushion to move up and down along the direction of the first sliding groove so as to carry out important support on the parts required by the human body; the control mechanism who distinguishes the tradition with the cushion sets up in the tray, and this scheme separates it out, has further simplified tray structure, through the bidirectional support and the connection of tailstock and footstock for the mechanism of this scheme is more firm.
Drawings
FIG. 1 is a schematic view of a chair and a cushion adjusting mechanism thereof according to the present invention;
FIG. 2 is a front view of FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic view of the portion A-A of FIG. 2 in accordance with the present invention;
FIG. 4 is a schematic view of a cushion mechanism according to the present invention;
FIG. 5 is a schematic view of a spacing assembly according to the present invention;
FIG. 6 is a schematic view of a linkage according to the present invention;
FIG. 7 is a schematic view of a fastening assembly according to the present invention.
Description of the drawings: 1. a chair back; 11. a headrest frame; 12. a base; 13. a top base; 14. a tailstock; 15. a first hinge shaft; 2. a cushion mechanism; 3. a back cushion; 31. a connection part; 4. a connection assembly; 41. a first connection plate; 42. a second connecting plate; 43. a second hinge shaft; 44. a clamping piece; 5. a limit component; 51. a linkage member; 52. a locking pull rod; 53. a first slip groove; 54. a tension spring; 55. a limit cover plate; 56. a first cover plate; 57. a limiting plate; 58. a mounting groove; 511. a first limiting shaft; 512. the second limiting shaft; 513. a reset connection; 514. a locking part; 515. a locking hole; 6. a support; 61. a connecting groove; 62. a limit groove; 63. a second slip groove; 64. a second cover plate;
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Example 1
1-3, A chair and a cushion adjusting mechanism thereof, comprising a tray, a chair back 1 and a cushion mechanism 2, wherein the tray comprises a base 12, a top seat 13 and a tail seat 14, the base 12 is hinged with the tail seat 14, the top seat 13 is movably connected with the base 12, the tail seat 14 is hinged with the top seat 13, the chair back 1 and the tail seat 14 are fixedly connected with the cushion mechanism 2, and are positioned in the chair back 1 and hinged together, and a headrest frame 11 for installing a headrest is arranged on the chair back 1;
As shown in fig. 1-4 and fig. 7, the cushion mechanism 2 includes a connection assembly 4, a limit assembly 5 and a cushion 3, a connection portion 31 with a groove is protruded on the cushion 3, the connection assembly includes a support member 6, a bottom section of the support member 6 is hinged with the seat back 1 through the first hinge shaft 15, a connection groove 61 and a limit groove 62 are formed on a top section of the support member 6, the connection groove 61 and the limit groove 62 are mutually communicated, the connection groove 61 is close to the cushion 3, the limit groove 62 is close to the tray, a first connection plate 41 is symmetrically fixed on left and right sides in the connection groove 61, a second connection plate 42 is fixed on the first connection plate 41 through a second hinge shaft 43, clamping pieces 44 are fixed on two ends of the second hinge shaft 43, the first connection plate 41 and the second connection plate 42 are located between the clamping pieces 44, the left and right sides of the second connection plate 42 are respectively connected with the first connection plate 41 in a U shape, and the second connection plate 42 is fixed in the groove 31 on the cushion 3;
As shown in fig. 5, the limiting assembly includes a limiting plate 57 and a linkage 51;
the limiting plate 57 is provided with a mounting groove 58, one end of the mounting groove 58 is opened, three fixing blocks are arranged in the mounting groove 58 in a protruding mode, the limiting plate 57 is fixed on the top plate 13 through the fixing blocks, three limiting parts are arranged in the mounting groove 58 in a protruding mode, the limiting parts are fixedly connected with limiting cover plates 55, two sides of the limiting plate 57 are arranged on first sliding grooves 53 communicated with the mounting groove 58, the first sliding grooves 53 are step grooves, the section of one end of each first sliding groove 53 close to the mounting groove 58 is smaller, and two sides of the limiting plate 57 are fixedly connected with first cover plates 56 used for blocking the first sliding grooves 53;
As shown in fig. 6, a locking portion 514 protrudes from one end of the linkage member 51, a hook-shaped reset connection portion 513 protrudes from the same side of the locking portion 514, a first limit shaft 511 is further provided on the other reset tension spring side of the linkage member 51 in a penetrating manner, a second limit shaft 512 is provided on the linkage member 51 in a penetrating manner, the second limit shaft 512 is close to the locking portion 514 and the reset connection portion 513, the linkage member 51 is V-shaped, and a locking hole 515 is provided on the locking portion 514;
As shown in fig. 1 to 6, the limiting plate 57 is slidably connected to the link 51;
One end of the linkage piece 51, which is provided with a locking part 514, is positioned in the mounting groove 58 and is in sliding connection, the locking part 514 of the linkage piece 51 is positioned between the limiting parts and is blocked by the limiting cover plate 55, the resetting connection part 513 is connected with a tension spring 54, the other end of the tension spring 54 is fixed in the mounting groove 58, two ends of the second limiting shaft 512 extend into the first sliding groove 53, two ends of the second limiting shaft 512 are rotationally connected with rollers, and the rollers are positioned in the groove holes outside the first sliding groove 53 and are in sliding fit;
a locking pull rod 52 is fixed at one end of the limiting plate 57, the locking pull rod 52 penetrates through the limiting plate 57, and the locking pull rod 52 is connected with the locking hole 515 in a plug-in mode;
The locking pull rod 52 is internally provided with a locking shaft and a locking spring, after the locking shaft moves, the locking shaft can be automatically reset through the locking spring, and the locking shaft is connected with the locking hole 515 in an inserting and pulling way;
the second sliding grooves 63 are respectively formed in the left side and the right side of the limiting groove 62, two ends of the first limiting shaft 511 are located in the second sliding grooves 63 and are in sliding fit up and down, and the second cover plates 64 for blocking the second sliding grooves 63 are arranged on the left side and the right side of the supporting piece 6.
The using method comprises the following steps:
when a user is attached to the cushion 3, the cushion 3 rotates around the second hinge shaft 43 through the second connecting plate 42 along with the change of the body position of the user, so that the use experience of the user is improved.
When the back cushion 3 is in a locking state, the locking pull rod 52 is inserted into the locking hole 515, and when a user adjusts the chair back 1, the back cushion 3 does not act along with the action of the chair back 1;
when the back cushion 3 is in an active state, the locking pull rod 52 is separated from the locking hole 515, and when a user simply adjusts the back cushion 1 and does not contact with the back cushion 3, the back cushion 3 does not act along with the action of the back cushion 1;
when the back cushion 3 is in an active state, the locking pull rod 52 is separated from the locking hole 515, and when the back cushion 1 forms a certain angle with the back cushion 3, the back cushion 3 rotates around the first hinge shaft 15 under the pressure of a user when the user leans backwards; the cushion 3 is moved, wherein the cushion 3 drives the supporting member 6 to rotate around the first hinge shaft 15 through the connection assembly 4 until a user collides with the seat back 1, the supporting member 6 moves to drive the first limiting shaft 511 to move through the second sliding groove 63, the first limiting shaft 511 drives the linkage member 51 to move, the linkage member 51 drives the second limiting shaft 512 to move along the second sliding groove 63, the linkage member 51 drives the locking portion 515 and the reset connection portion 513 to move, and the reset connection portion 513 stretches the tension spring 54;
When the cushion 3 is in an active state, the locking pull rod 52 is separated from the locking hole 515, and when the user lifts forward, the cushion 3 is attached to the user and gradually reset until the locking pull rod 52 is in contact with the locking part 514; the resetting process of the back cushion 3 is as follows: the tension spring 54 drives the reset connection part 513 to reset, the reset connection part 513 drives the linkage piece 51 to reset, the linkage piece 51 drives the locking part 514, the first limiting shaft 511 and the second limiting shaft 512 to reset, the first limiting shaft 511 drives the supporting piece 6 to reset through the second sliding groove 63, and the supporting piece 6 drives the cushion 3 to reset through the connection assembly 4 until the locking part 514 is in contact with the locking pull rod 52;
When the cushion 3 resets, the linkage piece 51 drives the supporting piece 6 to reset through the first limiting shaft 511, the supporting piece 6 drives the cushion 3 to reset through the connecting component 4, the locking shaft is loosened, and the locking shaft is inserted into the initial locking hole 515 under the driving of the locking spring, so that resetting and locking are completed.
Example 2
In contrast to embodiment 1, the seat back 1 is omitted, the bottom section of the supporting member 6 is hinged with the tailstock 14, and a plurality of locking holes 515 are formed in the locking portion 514 of the linkage member 51;
the back cushion 3 can be a waist cushion or a chair back.
Course of action
When the tailstock 14 swings, the tailstock 14 drives the supporting piece 6 to slide along the up-down direction of the second sliding groove 63, and the supporting piece 6 drives the connecting component 4 to drive the cushion 3 to move;
When the back cushion 3 is adjusted in angle, the locking shaft of the locking pull rod 52 is pulled to be separated from the locking hole 515, and when a user tilts backwards, the back cushion 3 rotates around the first hinge shaft 15 under the pressure of the user; the cushion 3 is moved in such a way that the cushion 3 drives the supporting member 6 to rotate around the hinge point with the tailstock 14 through the connecting component 4, the supporting member 6 moves to drive the first limiting shaft 511 to move through the second sliding groove 63, the first limiting shaft 511 drives the linkage member 51 to move, the linkage member 51 drives the second limiting shaft 512 to move along the second sliding groove 63, the linkage member 51 drives the locking portion 515 and the reset connecting portion 513 to move, the reset connecting portion 513 stretches the tension spring 54, and when a user adjusts the device by a proper angle, the locking shaft of the locking pull rod 52 is released to be reinserted into the other locking holes 515;
when the cushion 3 resets, the locking shaft of the locking pull rod 52 is pulled, the locking part 514 of the linkage piece 51 is completely reset under the drive of the reset spring 54, the linkage piece 51 drives the support piece 6 to reset through the first limiting shaft 511, the support piece 6 drives the cushion 3 to reset through the connecting component 4, the locking shaft is loosened, and the locking shaft is inserted into the initial locking hole 515 under the drive of the locking spring, so that resetting and locking are completed.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives, and variations may be made in the above embodiments by those skilled in the art without departing from the spirit and principles of the invention.
Claims (7)
1. The utility model provides a cushion adjustment mechanism, includes the tray, the tray includes tailstock (14), is used for connecting footstock (13) of seat and is used for connecting base (12) of chair foot, tailstock (14) and base (12) swing joint, its characterized in that: the back cushion is characterized by further comprising a back cushion (3), a supporting piece (6), a linkage piece (51) and a locking pull rod (52), wherein the bottom section of the supporting piece (6) is hinged with the tailstock (14), the top section of the supporting piece (6) is hinged with the back cushion (3), one end of the linkage piece (51) is in sliding connection with the supporting piece (6), the other end of the linkage piece (51) is in sliding connection with the top seat (13), a locking mechanism is arranged between the linkage piece (51) and the top seat (13), and when the locking mechanism is locked, the linkage piece (51) and the back cushion (3) are locked and cannot move;
the support piece (6) is provided with a second sliding groove (63), one end of the linkage piece (51) is provided with a first limiting shaft (511) in a penetrating mode, and two ends of the first limiting shaft (511) are located in the second sliding groove (63) and are in sliding fit up and down;
A limiting plate (57) is fixed on the top seat (13), and the linkage piece (51) is in sliding connection with the front and rear linkage pieces of the limiting plate (57);
The two side end walls of the limiting plate (57) are provided with first sliding grooves (53), the linkage piece (51) is rotatably connected with a second limiting shaft (512), and two sides of the second limiting shaft (512) are located in the first sliding grooves (53) and are in sliding fit with each other.
2. A cushion adjustment mechanism as claimed in claim 1, wherein: the top section of the support piece (6) is fixedly connected with a first connecting plate (41), the first connecting plate (41) is hinged with a second connecting plate (42), and the other side of the second connecting plate (42) is fixed on the back cushion (3).
3. A cushion adjustment mechanism as claimed in claim 1, wherein: the locking mechanism comprises a locking pull rod (52), at least one locking hole (515) is formed in the linkage piece (51), and the locking mechanism is locked when the locking pull rod (52) is inserted into the locking hole (515).
4. A cushion adjustment mechanism as claimed in claim 3, wherein: the locking pull rod (52) is arranged on the limiting plate (57), the locking pull rod (52) comprises a locking shaft and a locking spring, the locking spring is used for resetting the locking shaft, and the locking shaft is connected with a locking hole (515) of the linkage piece (51) in a plug-in mode.
5. A cushion adjustment mechanism as claimed in claim 1, wherein: the device further comprises a tension spring (54), one end of the tension spring (54) is connected with the linkage piece (51), and the other end of the tension spring (54) is fixed on the limiting plate (57).
6. A cushion adjustment mechanism according to any one of claims 1 to 5, wherein: the back cushion (3) is a chair back or a waist cushion.
7. A chair comprising a cushion adjustment mechanism as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011637005.7A CN112674520B (en) | 2020-12-31 | 2020-12-31 | Chair and back cushion adjusting mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011637005.7A CN112674520B (en) | 2020-12-31 | 2020-12-31 | Chair and back cushion adjusting mechanism thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112674520A CN112674520A (en) | 2021-04-20 |
| CN112674520B true CN112674520B (en) | 2024-09-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011637005.7A Active CN112674520B (en) | 2020-12-31 | 2020-12-31 | Chair and back cushion adjusting mechanism thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN112674520B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103284505A (en) * | 2012-03-05 | 2013-09-11 | 及桦实业股份有限公司 | Backrest tilting structure supporting the human waist |
| CN111728411A (en) * | 2020-04-22 | 2020-10-02 | 东莞市博一家具有限公司 | Seat that automatically adapts to the lumbar |
| CN215226133U (en) * | 2020-12-31 | 2021-12-21 | 恒林家居股份有限公司 | Back cushion adjusting mechanism and chair |
| CN114209173A (en) * | 2021-11-22 | 2022-03-22 | 大康控股集团有限公司 | Seat with good waist and back fitting degree |
| CN114831456A (en) * | 2022-04-12 | 2022-08-02 | 安吉县盛信办公家具有限公司 | Waist that possesses elasticity locking function holds in palm seat |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101028369B1 (en) * | 2009-08-06 | 2011-04-11 | 최경자 | Spine Backrest Adjustable Chair |
-
2020
- 2020-12-31 CN CN202011637005.7A patent/CN112674520B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103284505A (en) * | 2012-03-05 | 2013-09-11 | 及桦实业股份有限公司 | Backrest tilting structure supporting the human waist |
| CN111728411A (en) * | 2020-04-22 | 2020-10-02 | 东莞市博一家具有限公司 | Seat that automatically adapts to the lumbar |
| CN215226133U (en) * | 2020-12-31 | 2021-12-21 | 恒林家居股份有限公司 | Back cushion adjusting mechanism and chair |
| CN114209173A (en) * | 2021-11-22 | 2022-03-22 | 大康控股集团有限公司 | Seat with good waist and back fitting degree |
| CN114831456A (en) * | 2022-04-12 | 2022-08-02 | 安吉县盛信办公家具有限公司 | Waist that possesses elasticity locking function holds in palm seat |
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| Publication number | Publication date |
|---|---|
| CN112674520A (en) | 2021-04-20 |
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