CN201577827U - Seat back-rest angle regulating mechanism - Google Patents
Seat back-rest angle regulating mechanism Download PDFInfo
- Publication number
- CN201577827U CN201577827U CN2009200627671U CN200920062767U CN201577827U CN 201577827 U CN201577827 U CN 201577827U CN 2009200627671 U CN2009200627671 U CN 2009200627671U CN 200920062767 U CN200920062767 U CN 200920062767U CN 201577827 U CN201577827 U CN 201577827U
- Authority
- CN
- China
- Prior art keywords
- joint assembly
- side joint
- seat cushion
- backrest
- rotating shaft
- 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 - Lifetime
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- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model discloses a seat back-rest angle regulating mechanism, which comprises a back-rest left joint component (13), a cushion left joint component (8), a handle component (11), a cam (9), rotary teeth (6), a torsion spring (4), and a locking device (5), wherein the lower portion of the back-rest left joint component (3) is provided with inner teeth (132) and a first shaft hole (133); the upper portion of the cushion left joint component (8) is provided with a second shaft hole (81); the handle component (11) comprises a handle (111) and a rotary shaft (112); the rotary shaft (112) penetrates through the first shaft hole (133) and the second shaft hole (81); the cam (9) is sleeved in the middle of the rotary shaft (112); the rotary teeth (6) are fixed on the cushion left joint component (8); the edge of the rotary teeth (6) is provided with outer teeth (62) which are matched with the inner teeth (132); the middle portion of the rotary teeth (6) is provided with special-shaped holes (61) with a plurality of stop points; and the cam (9) is mounted in the special-shaped holes (61); one end of the torsion spring (4) is mounted on the rotary shaft (112); the other end of the torsion spring (4) is mounted on the cushion left joint component (8); and the locking device (5) is mounted at the end of the rotary shaft (112) to lock the back-rest left joint component (13) and the cushion left joint component (8). The seat back-rest angle regulating mechanism can reduce the shake of a back rest, and eliminates potential safe hazards.
Description
Technical field
The utility model relates to seat, particularly a kind of backrest angle adjusting mechanism.
Background technology
The backrest and the seat cushion of general seat are fixed, and can not be suitable for different statures, different sitting posture users' needs fully.In order to improve the comfortableness of seat, the designer can be installed recliner additional usually, makes the user to adjust recliner as the case may be and makes backrest remain on certain angle of inclination.But existing seat angle adjustor or mechanism's complexity, tooth portion leak outside, or spacing and spring assembly leaks outside, and makes backrest shaking phenomenon occur, has certain potential safety hazard.
The utility model content
The utility model purpose is to provide a kind of backrest angle adjusting mechanism, can significantly reduce the shaking phenomenon of backrest, at utmost eliminates safe hidden trouble.
For solving above technical problem, the technical scheme that the utility model provides is that a kind of backrest angle adjusting mechanism comprises:
One backrest left side joint assembly (13), the bottom is provided with internal tooth (132) and first axis hole (133);
One seat cushion left side joint assembly (8), second axis hole (81) is offered on top;
One handle assembly (11) comprises handle (111) and rotating shaft (112), and described rotating shaft (112) runs through described first axis hole (133) and described second axis hole (81);
One cam (9) is socketed in the middle part of described rotating shaft (112);
One rotary teeth (6) is fixed on the described seat cushion left side joint assembly (8); The external tooth (62) that the edge setting of described rotary teeth (6) matches with described internal tooth (132), centre are offered the irregularly-shaped hole (61) with some stops, the described cam (9) of packing into;
One torsion spring (4), an end are installed in the described rotating shaft (112), and the other end is installed on the described seat cushion left side joint assembly (8);
One locking device (5) is installed in the end of described rotating shaft (112), locks described backrest left side joint assembly (13) and described seat cushion left side joint assembly (8).
Preferably, the bottom of described backrest left side joint assembly (13) is provided with a heavy nest (131), and its sidewall is provided with described internal tooth (132), and diapire is offered described first axis hole (133).
Preferably, offer a pin-and-hole (113) in the described rotating shaft (112); A through hole (91) is offered in the centre of described cam (9), and cotter way (92) is offered in its both sides; Described pin-and-hole (113) and described cotter way (92) are clamp-oned latch (10) described cam (9) and described rotating shaft (112) are fused when aliging.
Preferably, the end of described rotating shaft (112) is offered a groove (114), and an end of described torsion spring (4) is hung in the described groove (114).
Preferably, described locking device (5) comprises locking nut (51,52); The end of described rotating shaft (112) is provided with the external screw thread that cooperates with described locking nut (51,52).
Preferably, described seat cushion left side joint assembly (8) is offered a rotary teeth installing hole (82) on the next door of described second axis hole (81); The middle part of described rotary teeth is provided with a bending (63), makes the top of described rotary teeth (6) and bottom place the both sides of described seat cushion left side joint assembly (8) respectively.
Preferably, the edge of described rotary teeth installing hole (82) is provided with a projection (83), and an end of described torsion spring (4) is hung on the described projection (83).
Preferably, a pin-and-hole (64) is offered in the bottom of described rotary teeth (6), and a pin-and-hole (84) is offered in the bottom of described seat cushion left side joint assembly (8), behind the rotating dog of packing into (14) described rotary teeth (6) and described seat cushion left side joint assembly (8) is combined into one.
Preferably, described backrest left side joint assembly (13) links together by spacing rivet (12) with described seat cushion left side joint assembly (8).
Preferably, also comprise torsion spring lid (2), be fixed on the described seat cushion left side joint assembly (8) by screw (1,15).
Compared with prior art, engaging tooth portion, the handle of the utility model backrest angle adjusting mechanism is spacing and the maximal regulated angle is spacing built-in, rocks for a short time after the backrest locking, eliminates safe hidden trouble widely.This backrest angle adjusting mechanism simple in structure, volume is ultra-thin, and appearance looks elegant is generous.
Description of drawings
Fig. 1 is the exploded view of the utility model backrest angle adjusting mechanism;
Fig. 2 is the front view of backrest left side joint assembly among Fig. 1;
Fig. 3 A is the front view of Fig. 1 cam;
Fig. 3 B is the stereogram of Fig. 1 cam;
Fig. 4 A is the front view of rotary teeth among Fig. 1;
Fig. 4 B is the stereogram of rotary teeth among Fig. 1;
Fig. 5 is the stereogram of seat cushion left side joint assembly among Fig. 1;
Fig. 6 A is the combined front view of seat cushion left side joint assembly, rotary teeth, rotating dog and packing ring among Fig. 1;
Fig. 6 B is the left view of Fig. 6 A;
Fig. 6 C is the rearview of Fig. 6 A;
Fig. 6 D is the stereogram of Fig. 6 A;
Fig. 7 A is a backrest angle adjusting mechanism locking state schematic diagram shown in Figure 1;
Fig. 7 B is a backrest angle adjusting mechanism released state schematic diagram shown in Figure 1;
Fig. 8 is the assembled state schematic diagram of backrest angle adjusting mechanism shown in Figure 1;
Fig. 9 is the user mode schematic diagram of backrest angle adjusting mechanism shown in Figure 1.
The specific embodiment
Basic design of the present utility model is, with engaging tooth portion, handle is spacing and the maximal regulated angle is spacing built-in, rocks to reduce backrest.
Below in conjunction with drawings and Examples the utility model is further described.
Simultaneously referring to Fig. 1-Fig. 6 D, rotary backrest angle adjusting mechanism of the present utility model (hereinafter to be referred as recliner), constitute by seat cushion left side joint assembly 8, backrest left side socket joint assembly 13, Handleset 11, rotary teeth 6, cam 9, latch 10, rotating dog 14, torsion spring 4, torsion spring lid 2, locking device 5, packing ring 3, spacing rivet 12 etc., wherein:
The bottom of backrest left side socket joint assembly 13 is provided with a heavy nest 131, and its sidewall is provided with internal tooth 132, and diapire is offered the first circular axis hole 133;
Handleset 11 comprises handle 111 and rotating shaft 112, and its rotating shaft 112 is provided with a pin-and-hole 113, and the end is provided with external screw thread, and end is offered a groove 114;
Be provided with a circular port 91 in the middle of the cam 9, its both sides are respectively equipped with cotter way 92;
Seat cushion left side joint assembly 8, top has second axis hole 81 of a circle, and the next door of this second axis hole 81 is provided with a square rotary teeth installing hole 82, and its edge is provided with a projection 83; The bottom is provided with a pin-and-hole 84.
Be provided with irregularly-shaped hole 61 in the middle of rotary teeth 6 tops with some stops, left side edge be provided with backrest left side joint set 13 on the external tooth 62 that matches of internal tooth 132; There is a bending 63 at the middle part; The bottom is provided with a pin-and-hole 64.
The assembling process of this seat angle adjustor is as follows:
Earlier Handleset 11 is passed backrest left side socket joint group 13; Latch 10 passes the pin-and-hole 113 in the Handleset rotating shaft 111; Cam 9 is enclosed within the Handleset rotating shaft 112; Pin-and-hole 113 aligns with cotter way 92, and cotter way 92 alignment pins 10 squeeze into latch 10 in the cotter way 92 of cam 9, makes cam 9, latch 10 and Handleset 11 form one; Thus, cam 9 can rotate together in company with Handleset 11.
Again rotary teeth 6 bottoms are passed the square rotary teeth installing hole 82 on the joint assembly 8 of a seat cushion left side, make the latter half of rotary teeth 6 in the outside of seat cushion left side joint assembly 8, and the first half is in the inside of seat cushion left side joint assembly 8; Rotating dog 14 passes the pin-and-hole, packing ring 7 of rotary teeth 6 and the pin-and-hole 84 on the joint assembly 8 of a seat cushion left side, then with its head riveting on the joint assembly 8 of a seat cushion left side, make rotary teeth 6 to turn an angle around rotating dog 14; Thus, make seat cushion left side joint assembly 8, rotary teeth 6, rotating dog 14 and packing ring 7 form an integral body.
At last, the backrest left side joint assembly 13 that cam 9 is housed is combined with the seat cushion left side joint assembly 8 that rotary teeth 6 is housed; Second axis hole 81 on the joint assembly 8 of a seat cushion left side is passed in rotating shaft 112 on the Handleset 11; By two flat closely-pitched locking nuts 51,52 of spy backrest left side socket joint assembly 13 and seat cushion left side joint assembly 8 are locked together; With spacing rivet 12 backrest left side joint assembly 13 and seat cushion left side joint assembly 8 are linked together again; One end of torsion spring 4 is hung in the groove 114 of Handleset 11 rotating shaft ends, and the other end is hung on the projection 83 of seat cushion left side joint assembly 8, and packing ring 3 is enclosed within Handleset rotating shaft 112 ends; Push down torsion spring 4, itself and Handleset rotating shaft 112 are riveted together; Cover torsion spring lid 2, torsion spring lid 2 is locked on the joint assembly 8 of a seat cushion left side with screw 1,15.
Operation principle to the utility model recliner briefly explains below.
(1) mechanism's locking
Referring to Fig. 7 A, under the twisting force of torsion spring 4, cam 9 is remaining the trend that clockwise direction rotates in company with the rotating shaft 112 of Handleset 11, the last A point of cam 9 heads on the A1 face of the irregularly-shaped hole 61 of rotary teeth 6, makes the external tooth 62 of rotary teeth 6 and the internal tooth 132 of backrest left side joint assembly 13 be meshing with each other.Because seat cushion left side socket joint assembly 8 maintains static, so the rotary teeth 6 that is fixed on the joint assembly 8 of a seat cushion left side is also motionless; Rotary teeth 6 pressing closer the A1 face of rotary teeth again because of the A face on the cam, so can not rotate around rotating dog 14; Therefore, backrest left side joint assembly 13 and seat cushion left side joint assembly 8 can not relatively rotate, thereby reach the purpose of locking.
(2) mechanism separates
Referring to Fig. 7 B, when rotating up Handleset 11, cam 9 and then rotates, and the last A point of cam 9 just separates with A1 point on the rotary teeth 6; After changeing certain angle, B point on the cam 9 and the B1 point on the rotary teeth 6 contact with each other, and driven rotary tooth 6 rotates around rotating dog 14 clockwise directions, and the internal tooth 132 of the external tooth 62 of rotary teeth 6 and backrest left side joint assembly 13 begins exoneration simultaneously; After turning an angle, the C point on the cam 9 will be run into the C1 point of rotary teeth 6, makes rotary teeth 6 and Handleset 13 all can not rotate, thereby reaches the effect of restriction handle 11 angles; Simultaneously, the internal tooth 132 of the external tooth 62 of rotary teeth 6 and backrest left side joint assembly is thrown off fully, thereby makes backrest left side joint assembly 13 rotate with respect to the thorny handle assembly of the left joint assembly of seat cushion rotating shaft 112.
(3) locking by mechanism with separate, make the tooth of internal tooth 132 match different parts of the external tooth 62 of rotary teeth 6 and backrest left side joint assembly 13, thereby realize the angle regulating function of mechanism.
Referring to Fig. 8, Fig. 9, the engaging tooth portion of the utility model recliner, handle is spacing and the maximal regulated angle is spacing built-in, rocks for a short time after the backrest locking, eliminates safe hidden trouble widely.It also has following characteristics:
(1) simple in structure, volume is ultra-thin, and appearance looks elegant is generous, and its engaging tooth portion is built-in, and handle is spacing and the maximal regulated angle is spacing built-in, and locking back backrest rocks little, helps eliminating safe hidden trouble.
(2) handle angle is spacing reliable.When Handleset 11 rotated up certain angle, the C point on the cam 9 will be run into the C1 point of rotary teeth 6, makes cam 9 to rotate, thereby had realized the restriction of handle angle.
(3) limit of maximal regulated angle is put reliably.When regulating the angle of backrest left side joint assembly 13, when arriving maximum angle, the D1 point on the D point of backrest left side joint assembly 13 and the seat cushion left side joint assembly 8 contacts, thus the maximum angle that restriction backrest left side socket joint assembly 13 rotates.
Only be preferred implementation of the present utility model below, should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with claim institute restricted portion.For those skilled in the art, in not breaking away from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (10)
1. a backrest angle adjusting mechanism is characterized in that, comprising:
One backrest left side joint assembly (13), the bottom is provided with internal tooth (132) and first axis hole (133);
One seat cushion left side joint assembly (8), second axis hole (81) is offered on top;
One handle assembly (11) comprises handle (111) and rotating shaft (112), and described rotating shaft (112) runs through described first axis hole (133) and described second axis hole (81);
One cam (9) is socketed in the middle part of described rotating shaft (112);
One rotary teeth (6) is fixed on the described seat cushion left side joint assembly (8); The external tooth (62) that the edge setting of described rotary teeth (6) matches with described internal tooth (132), centre are offered the irregularly-shaped hole (61) with some stops, the described cam (9) of packing into;
One torsion spring (4), an end are installed in the described rotating shaft (112), and the other end is installed on the described seat cushion left side joint assembly (8);
One locking device (5) is installed in the end of described rotating shaft (112), locks described backrest left side joint assembly (13) and described seat cushion left side joint assembly (8).
2. backrest angle adjusting mechanism as claimed in claim 1 is characterized in that, the bottom of described backrest left side joint assembly (13) is provided with a heavy nest (131), and its sidewall is provided with described internal tooth (132), and diapire is offered described first axis hole (133).
3. backrest angle adjusting mechanism as claimed in claim 1 is characterized in that, offers a pin-and-hole (113) in the described rotating shaft (112); A through hole (91) is offered in the centre of described cam (9), and cotter way (92) is offered in its both sides; Described pin-and-hole (113) and described cotter way (92) are clamp-oned latch (10) described cam (9) and described rotating shaft (112) are fused when aliging.
4. backrest angle adjusting mechanism as claimed in claim 1 is characterized in that, the end of described rotating shaft (112) is offered a groove (114), and an end of described torsion spring (4) is hung in the described groove (114).
5. backrest angle adjusting mechanism as claimed in claim 1 is characterized in that, described locking device (5) comprises locking nut (51,52); The end of described rotating shaft (112) is provided with the external screw thread that cooperates with described locking nut (51,52).
6. backrest angle adjusting mechanism as claimed in claim 1 is characterized in that, described seat cushion left side joint assembly (8) is offered a rotary teeth installing hole (82) on the next door of described second axis hole (81); The middle part of described rotary teeth is provided with a bending (63), makes the top of described rotary teeth (6) and bottom place the both sides of described seat cushion left side joint assembly (8) respectively.
7. backrest angle adjusting mechanism as claimed in claim 6 is characterized in that, the edge of described rotary teeth installing hole (82) is provided with a projection (83), and an end of described torsion spring (4) is hung on the described projection (83).
8. backrest angle adjusting mechanism as claimed in claim 1, it is characterized in that, a pin-and-hole (64) is offered in the bottom of described rotary teeth (6), a pin-and-hole (84) is offered in the bottom of described seat cushion left side joint assembly (8), behind the rotating dog of packing into (14) described rotary teeth (6) and described seat cushion left side joint assembly (8) is combined into one.
9. backrest angle adjusting mechanism as claimed in claim 1 is characterized in that, described backrest left side joint assembly (13) links together by spacing rivet (12) with described seat cushion left side joint assembly (8).
10. as each described backrest angle adjusting mechanism of claim 1-9, it is characterized in that, also comprise torsion spring lid (2), be fixed on the described seat cushion left side joint assembly (8) by screw (1,15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200627671U CN201577827U (en) | 2009-08-21 | 2009-08-21 | Seat back-rest angle regulating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200627671U CN201577827U (en) | 2009-08-21 | 2009-08-21 | Seat back-rest angle regulating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201577827U true CN201577827U (en) | 2010-09-15 |
Family
ID=42719819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200627671U Expired - Lifetime CN201577827U (en) | 2009-08-21 | 2009-08-21 | Seat back-rest angle regulating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201577827U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102846067A (en) * | 2012-09-18 | 2013-01-02 | 浙江永艺家具股份有限公司 | Back locking mechanism for swivel chair |
| CN105480124A (en) * | 2014-10-03 | 2016-04-13 | 福特全球技术公司 | Manual upper seatback support |
| CN109393808A (en) * | 2018-12-27 | 2019-03-01 | 上海永乐座椅有限公司 | The elastics wing seat of adjustable back angle |
-
2009
- 2009-08-21 CN CN2009200627671U patent/CN201577827U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102846067A (en) * | 2012-09-18 | 2013-01-02 | 浙江永艺家具股份有限公司 | Back locking mechanism for swivel chair |
| CN102846067B (en) * | 2012-09-18 | 2014-10-15 | 浙江永艺家具股份有限公司 | Back locking mechanism for swivel chair |
| CN105480124A (en) * | 2014-10-03 | 2016-04-13 | 福特全球技术公司 | Manual upper seatback support |
| CN105480124B (en) * | 2014-10-03 | 2019-07-19 | 福特全球技术公司 | Manually top backrest supporting element |
| CN109393808A (en) * | 2018-12-27 | 2019-03-01 | 上海永乐座椅有限公司 | The elastics wing seat of adjustable back angle |
| CN109393808B (en) * | 2018-12-27 | 2022-03-04 | 上海永乐座椅有限公司 | Elastic swinging seat with adjustable backrest angle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100915 |
|
| CX01 | Expiry of patent term |