CN109907567B - Waist rest adjusting mechanism - Google Patents
Waist rest adjusting mechanism Download PDFInfo
- Publication number
- CN109907567B CN109907567B CN201711320666.5A CN201711320666A CN109907567B CN 109907567 B CN109907567 B CN 109907567B CN 201711320666 A CN201711320666 A CN 201711320666A CN 109907567 B CN109907567 B CN 109907567B
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- Prior art keywords
- plate
- mounting
- lumbar support
- adjusting block
- support
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- 230000007306 turnover Effects 0.000 claims abstract description 55
- 238000009434 installation Methods 0.000 claims abstract description 36
- 230000000670 limiting effect Effects 0.000 description 13
- 230000001105 regulatory effect Effects 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The invention belongs to the field of furniture, and discloses a lumbar support adjusting mechanism, which comprises a lumbar support, a support frame and further comprises: the mounting seat is fixedly arranged on the supporting frame and is provided with a first mounting groove; the turnover support comprises a first support and a turnover plate arranged at the rear end of the first support, the turnover plate is arranged in the first mounting groove, one end of the upper end and the lower end of the turnover plate rotates around the first mounting groove, and the front end of the first support is connected with the lumbar support; the adjusting block is arranged in the first mounting groove, and the rotating angle of the overturning bracket is adjusted by sliding the adjusting block up and down, so that the lumbar support can be adjusted back and forth; the installation cover plate covers the outer side of the turnover plate and is fixedly connected with the installation seat, and the first bracket penetrates through the installation cover plate. The front and back positions of the waist rest are changed in a rotating mode of the overturning bracket, the structure is simple, the operation is convenient, and the adjustment of the front and back positions of the waist rest can be completed by sliding the adjusting block up and down.
Description
Technical Field
The invention relates to the field of furniture, in particular to a lumbar support adjusting mechanism.
Background
The importance of the chair as daily furniture for people to work and learn is self-evident. The good comfortable office environment is beneficial to improving office efficiency.
There are a variety of chairs that provide fore and aft adjustment of the lumbar support, which provides support to the lumbar of the user. However, the existing waist rest adjusting mechanism on the market adopts a worm and gear mode to adjust the waist rest, so that the waist rest adjusting mechanism is complex in structure, time-consuming and labor-consuming to operate, and can be adjusted back and forth only by rotating for a plurality of circles.
Disclosure of Invention
Aiming at the problem that the lumbar support cannot be directly and effectively adjusted forwards and backwards in the prior art, the invention provides the lumbar support adjusting mechanism which is simple in structure and convenient to operate.
The technical scheme adopted by the invention for realizing the technical purpose is as follows:
The utility model provides a waist is leaned on adjustment mechanism, includes waist rest, support frame, still includes:
the mounting seat is fixedly arranged on the supporting frame and is provided with a first mounting groove;
the turnover support comprises a first support and a turnover plate arranged at the rear end of the first support, the turnover plate is arranged in the first mounting groove, one end of the upper end and the lower end of the turnover plate rotates around the first mounting groove, and the front end of the first support is connected with the lumbar support;
The adjusting block is arranged in the first mounting groove, and the rotating angle of the overturning bracket is adjusted by sliding the adjusting block up and down, so that the lumbar support can be adjusted back and forth;
the installation cover plate covers the outer side of the turnover plate and is fixedly connected with the installation seat, and the first bracket penetrates through the installation cover plate.
Further, the overturning plate is rotatably connected with the mounting seat.
Preferably, a groove is formed in the mounting seat and close to the first mounting groove, a hook portion is correspondingly formed in the overturning plate, and the hook portion is located in the groove.
Preferably, the width of the groove is greater than the width of the hook in the sliding direction of the adjustment block. The turnover plate can smoothly rotate.
Preferably, a first bulge is arranged at the lower part of the turnover plate, and a first installation part matched with the first bulge is arranged on the installation cover plate; the first installation part is provided with an arc-shaped groove, and the first bulge is always positioned in the arc-shaped groove. The turnover plate is fixed in the first mounting groove under the limiting effect.
Preferably, the adjusting block is provided with a wider part and a narrower part along the sliding direction, and an inclined surface opposite to the inner side surface of the turnover plate is formed between the wider part and the narrower part; the adjusting block is positioned at a position close to a rotating fulcrum of the overturning plate, so that when the overturning plate rotates, one end of the overturning plate, which is far away from the adjusting block, is close to the bottom surface of the first mounting groove, and the inner side of the overturning plate is attached to the inclined surface; the adjusting block is located at a position far away from the rotating fulcrum of the overturning plate, the overturning plate abuts against the wider part of the adjusting block, and the overturning plate is in a locking state. When in a locking state, the adjusting block is abutted against the overturning plate, so that the overturning plate cannot rotate, and only the state abutted against the adjusting block can be maintained. When in an unlocked state, the adjusting block is far away from the rotating fulcrum of the overturning plate, and the overturning plate can rotate in the first mounting groove.
Preferably, in the locked state, the turning plate abuts against the cover plate at a position away from the rotation fulcrum.
Preferably, an inclined surface opposite to the inner side surface of the turnover plate is formed between the wider portion and the narrower portion.
Further, an elastic limiting protrusion is arranged on the bottom surface of the first mounting groove, and a limiting groove matched with the limiting protrusion is arranged on the contact surface of the adjusting block and the bottom surface of the first mounting groove. When the adjusting block is adjusted to a position away from the rotation fulcrum of the roll-over plate, the adjusting block can be kept stationary at the position.
Preferably, two buckles for fixed installation are arranged at the upper end of the installation cover plate, and two installation holes are formed at the lower end of the installation cover plate; two clamping grooves matched with the buckles are formed in the mounting seat.
Preferably, the mounting cover plate is provided with a containing groove capable of containing the first bracket to rotate.
Preferably, the adjusting block extends to the left and right sides to form an adjusting handle. The left side and the right side are adjusted simultaneously, so that the adjusting blocks can be parallel left and right when being adjusted.
Preferably, the lumbar support is rotatably connected with the front end of the first bracket.
The beneficial effects of the invention are as follows:
The invention changes the front and back positions of the lumbar support by rotating the overturning bracket, has simple structure and convenient operation, and can adjust the front and back positions of the lumbar support by sliding the adjusting block up and down.
When the adjusting block is positioned at a position close to the rotating fulcrum of the overturning plate, the overturning plate is abutted against the adjusting block, and is triggered by external force, the overturning plate rotates, one end, away from the adjusting block, of the overturning plate is abutted against the bottom surface of the first mounting groove, and the lumbar support is adjusted to the rear. When the regulating block is positioned at a position far away from the rotating pivot of the turnover plate, the limiting groove on the regulating block is matched with the limiting protrusion of the first mounting groove, so that the regulating block is fixed at the position far away from the rotating pivot of the turnover plate, the inner side of the turnover plate is propped against the wider part of the regulating block, the outer side of the turnover plate is propped against the mounting cover plate, and at the moment, the lumbar support is regulated to the front and is fixed at the position.
The seat adopting the waist rest adjusting mechanism can adjust the waist rest according to the human body demand. When a person works, the waist rest is adjusted to the front and is propped against the waist of the human body, so that the waist support is carried out on the person, and the discomfort of the person during working is relieved.
Drawings
FIG. 1 is a schematic view of the lumbar support adjustment mechanism of the present invention;
FIG. 2 is a schematic view of the internal structure of the lumbar support adjustment mechanism of the present invention;
Fig. 3 is an enlarged view of a portion a in fig. 2;
FIG. 4 is an exploded view of an angle of the lumbar adjustment mechanism of the present invention;
FIG. 5 is an exploded view of an alternative angle of the lumbar adjustment mechanism of the present invention;
Fig. 6 is an enlarged view of the portion B in fig. 5.
Marking:
11. A waist rest; 12. a support frame;
2. Installing a cover plate; 21. a first mounting portion; 211. an arc-shaped groove; 22. a buckle; 23. a mounting hole; 24. a receiving groove;
3. overturning the bracket; 31. a first bracket; 32. a turnover plate; 321. a hook portion; 322. a first protrusion;
4. An adjusting block; 41. an inclined plane; 42. a limit groove; 43. adjusting the handle;
5. A mounting base; 51. a first mounting groove; 52. a groove; 53. and a limit protrusion.
Detailed Description
The technical scheme of the invention is further described in detail below through specific embodiments and with reference to the accompanying drawings. The description of the orientation of the present invention is defined in terms of normal use of the seat.
Embodiment one: as shown in fig. 1-6, the lumbar support adjusting mechanism comprises a lumbar support 11, a support frame 12 and an installation seat 5, wherein the installation seat 5 is fixedly arranged on the support frame 12, and a first installation groove 51 is formed in the installation seat 5;
The turnover bracket 3 comprises a first bracket 31 and a turnover plate 32 arranged at the rear end of the first bracket 31, wherein the turnover plate 32 is arranged in a first mounting groove 51, the lower end of the turnover plate 32 rotates around the first mounting groove 51, and the front end of the first bracket 31 is rotationally connected with the lumbar support 11;
The adjusting block 4 is arranged between the turnover plate 32 and the first mounting groove 51, and the rotating angle of the turnover bracket 3 is adjusted by sliding the adjusting block 4 up and down, so that the lumbar support 11 can be adjusted back and forth;
The installation apron 2, the installation apron 2 covers in the outside of upset board 32 and with mount pad 5 fixed connection, installation apron 2 is equipped with one and supplies first support 31 to wear out and reciprocate the holding tank 24.
Specifically, as shown in fig. 3, a groove 52 is provided below the first mounting groove 51 on the mounting seat 5, and a hook portion 321 is correspondingly provided on the turnover plate 32, where the hook portion 321 is located in the groove 52; the width of the groove 52 is greater than the width of the hook 321 in the sliding direction of the adjustment block 4. The lower part of the turnover plate 32 is provided with a first bulge 322, and the mounting cover plate 2 is provided with a first mounting part 21 matched with the first bulge 322; the first mounting portion 21 is provided with an arc-shaped slot 211, and the first protrusion 322 is always located in the arc-shaped slot 211.
As shown in fig. 3, the regulating block 4 has a wider portion and a narrower portion in the sliding direction, and a slope 41 is formed between the wider portion and the narrower portion opposite to the inner side surface of the flipping plate 32. The surface may be an arc surface or other inclined surface, and the purpose of the surface is to provide enough space for the turnover plate 32 to move toward the bottom surface of the first mounting groove 51. As shown in fig. 3, the adjusting block in this embodiment adopts a cambered surface.
An elastic limit protrusion 53 is arranged on the bottom surface of the first mounting groove 51, and a limit groove 42 matched with the limit protrusion 53 is arranged on the contact surface of the adjusting block 4 and the bottom surface of the first mounting groove 51. The limiting protrusion 53 and the mounting seat 5 are integrally formed. The mounting seat 5 may be made of plastic or metal. Specifically, a groove for accommodating the limiting protrusion 53 is formed in the middle position of the upper end of the first mounting groove 51, the limiting protrusion 53 is disposed in the groove, the limiting protrusion 53 is in an inverted L shape, and includes a horizontal portion and an inclined portion, the horizontal portion is formed by extending the mounting seat 5, the lower end of the inclined portion is inclined forward, and a protrusion matched with the limiting groove 42 is disposed at the lower end of the inclined portion.
The adjusting block 4 is located at a position close to the rotation fulcrum of the turnover plate 32 (namely, below the first mounting groove 51), the turnover plate 32 rotates under the action of external force, the upper end of the turnover plate 32 is close to the bottom surface of the first mounting groove 51, and the inner side of the turnover plate 32 is attached to the inclined surface 41; the regulating block 4 is located at a position far away from the rotation fulcrum of the turnover plate 32 (i.e. above the first mounting groove 51), the limiting groove 42 of the regulating block 4 is matched with the limiting protrusion 53 on the bottom surface of the first mounting groove 51, so that the regulating block is fixed above the first mounting groove 51, at this time, the inner side of the turnover plate 32 abuts against the wider part of the regulating block 4, the upper end of the turnover plate 32 abuts against the cover plate, and the turnover plate is fixed in a locking state by the regulating block.
To facilitate the adjustment of the adjustment block 4, the adjustment block 4 extends with an adjustment handle 43 on the left and right sides.
In addition, the rotation angle of the flipping plate 32 can be realized by a spring mechanism, and when the mechanism is used, an adjusting block is not needed. The spring is arranged between the turnover plate 32 and the installation cover plate 2, the installation cover plate 2 is provided with protruding points used for clamping the turnover plate 32, when the waist rest 11 is positioned at the front position, the spring is compressed, and the turnover plate 32 is clamped by the protruding points on the installation cover plate 2. When the lumbar support 11 needs to be adjusted to the rear position, for convenience in operation, the adjusting handles may be extended from two sides of the turnover plate 32 to press the adjusting handles forward, the turnover plate 32 is sprung, and at this time, the turnover plate 32 may tilt backward to abut against the bottom surface of the first mounting groove 51, so as to realize the backward movement of the lumbar support 11. Besides, the first installation groove 51 is inclined to adjust the rotation angle of the turnover plate 32, that is, the first installation groove 51 is inclined from top to bottom to back in the vertical direction, the rear end of the adjusting block 4 and the inclined surface of the first installation groove 51 are matched to move up and down along the inclined surface of the first installation groove 51, the front end surface and the upper end surface of the adjusting block 4 are at right angles, when the adjusting block 4 is located below, the turnover plate abuts against the adjusting block 4, the lumbar support 11 is located at the front position, when the adjusting block 4 moves upwards, the turnover plate is inclined backwards under the action of external force, the turnover plate 32 drives the first bracket 31, the first bracket 31 drives the lumbar support 11, and the lumbar support 11 is adjusted to the back position. The alternatives described above are numerous, but the final purpose is to rotate the flipping plate 32, that is, to change the front-rear position of the front end of the first bracket 11 by rotating the flipping plate 32, so as to adjust the front-rear position of the lumbar support 11.
Two buckles 22 for fixed installation are arranged at the upper end of the installation cover plate 2, and two installation holes 23 are arranged at the lower end of the installation cover plate 2; two clamping grooves matched with the buckles 22 are formed in the mounting seat 5. The mounting cover plate is fixed on the mounting seat through the structure.
Embodiment two: the first difference between this embodiment and the second embodiment is that: the upper end of the turnover plate 32 rotates around the first mounting groove 51, i.e. the groove 52 is arranged above the first mounting groove 51 on the mounting seat 5.
Claims (11)
1. The utility model provides a waist leans on adjustment mechanism, includes waist rest, support frame, its characterized in that still includes:
the mounting seat is fixedly arranged on the supporting frame and is provided with a first mounting groove;
the turnover support comprises a first support and a turnover plate arranged at the rear end of the first support, the turnover plate is arranged in the first mounting groove, one end of the upper end and the lower end of the turnover plate rotates around the first mounting groove, and the front end of the first support is connected with the lumbar support;
The adjusting block is arranged in the first mounting groove, and the rotating angle of the overturning bracket is adjusted by sliding the adjusting block up and down, so that the lumbar support can be adjusted back and forth;
The mounting cover plate covers the outer side of the turnover plate and is fixedly connected with the mounting seat, and the first bracket penetrates through the mounting cover plate;
The adjusting block is provided with a wider part and a narrower part along the sliding direction, and an inclined plane opposite to the inner side surface of the turnover plate is formed between the wider part and the narrower part; the adjusting block is positioned at a position close to a rotating fulcrum of the overturning plate, so that when the overturning plate rotates, one end of the overturning plate, which is far away from the adjusting block, is close to the bottom surface of the first mounting groove, and the inner side of the overturning plate is attached to the inclined surface; the adjusting block is positioned at a position far away from the rotating fulcrum of the overturning plate, the overturning plate is propped against the wider part of the adjusting block, and the overturning plate is in a locking state;
The waist rest is rotationally connected with the front end of the first bracket.
2. The lumbar adjustment mechanism of claim 1, wherein the flipping panel is rotatably coupled to the mounting base.
3. The lumbar support adjustment mechanism of claim 2, wherein a recess is provided in the mounting base adjacent the first mounting slot, and wherein a hook is provided in the turnover plate, the hook being disposed in the recess.
4. A lumbar support adjustment mechanism according to claim 3, wherein the width of the groove is greater than the width of the hook in the sliding direction of the adjustment block.
5. The lumbar support adjustment mechanism of claim 2, wherein the lower portion of the flip plate has a first protrusion, and the mounting cover plate has a first mounting portion that mates with the first protrusion; the first installation part is provided with an arc-shaped groove, and the first bulge is always positioned in the arc-shaped groove.
6. The lumbar support adjustment mechanism of claim 1, wherein the flip plate abuts the cover plate away from the pivot point when in the locked condition.
7. The lumbar support adjustment mechanism of claim 1, wherein the wider portion and the narrower portion define a sloped surface therebetween opposite the inner side of the flip plate that is a cambered surface.
8. The lumbar support adjustment mechanism of claim 1, wherein the bottom surface of the first mounting groove is provided with an elastic limit protrusion, and the contact surface of the adjustment block and the bottom surface of the first mounting groove is provided with a limit groove matched with the limit protrusion.
9. The lumbar support adjusting mechanism according to claim 1, wherein two buckles for fixed installation are arranged at the upper end of the installation cover plate, and two installation holes are arranged at the lower end of the installation cover plate; two clamping grooves matched with the buckles are formed in the mounting seat.
10. The lumbar support adjustment mechanism of claim 1 wherein the mounting plate defines a receiving slot for receiving the first bracket for rotation.
11. The lumbar support adjustment mechanism of claim 1, wherein the adjustment block extends beyond the adjustment handles to the left and right sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711320666.5A CN109907567B (en) | 2017-12-12 | 2017-12-12 | Waist rest adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711320666.5A CN109907567B (en) | 2017-12-12 | 2017-12-12 | Waist rest adjusting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109907567A CN109907567A (en) | 2019-06-21 |
| CN109907567B true CN109907567B (en) | 2024-08-09 |
Family
ID=66957618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711320666.5A Active CN109907567B (en) | 2017-12-12 | 2017-12-12 | Waist rest adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109907567B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114009992B (en) * | 2021-11-03 | 2023-07-25 | 永艺家具股份有限公司 | Waist leans on degree of depth adjusting device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208957322U (en) * | 2017-12-12 | 2019-06-11 | 永艺家具股份有限公司 | A kind of Lumbar regulating mechanism |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH064753Y2 (en) * | 1989-03-31 | 1994-02-09 | 池田物産株式会社 | Lumber support device |
| CN2847990Y (en) * | 2005-12-02 | 2006-12-20 | 王彩根 | Chair back regulation structure |
| JP5521662B2 (en) * | 2010-03-15 | 2014-06-18 | 日産自動車株式会社 | Lumber support |
| KR101148032B1 (en) * | 2011-12-15 | 2012-05-24 | 주식회사 시디즈 | Apparatus for supporting a lumbar vertebrae for a chair |
| CN205513535U (en) * | 2015-10-30 | 2016-08-31 | 嘉瑞福(浙江)家具有限公司 | Drive -by -wire of net chair is adjusted waist and is leaned on |
-
2017
- 2017-12-12 CN CN201711320666.5A patent/CN109907567B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208957322U (en) * | 2017-12-12 | 2019-06-11 | 永艺家具股份有限公司 | A kind of Lumbar regulating mechanism |
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| Publication number | Publication date |
|---|---|
| CN109907567A (en) | 2019-06-21 |
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