CN103358953A - Large stroke adjusting mechanism for seat headrest - Google Patents
Large stroke adjusting mechanism for seat headrest Download PDFInfo
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- CN103358953A CN103358953A CN2013103247302A CN201310324730A CN103358953A CN 103358953 A CN103358953 A CN 103358953A CN 2013103247302 A CN2013103247302 A CN 2013103247302A CN 201310324730 A CN201310324730 A CN 201310324730A CN 103358953 A CN103358953 A CN 103358953A
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- Prior art keywords
- headrest
- mechanical brake
- head rest
- rest pole
- cushion frame
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- 230000007246 mechanism Effects 0.000 title claims abstract description 28
- 230000005489 elastic deformation Effects 0.000 claims abstract description 4
- 230000033001 locomotion Effects 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000000284 resting effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- Chair Legs, Seat Parts, And Backrests (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention relates to an adjusting mechanism for a seat headrest, in particular to a large stroke adjusting mechanism for the seat headrest. On the basis that a headrest rod is fixedly connected with the headrest, and a headrest sheath is fixedly connected to a seat framework for the headrest rod to penetrate through, an elastic element capable of generating elastic deformation and a first lock-up device for locking the headrest rod when the headrest is at the highest position relative to the seat framework are additionally arranged; and in addition, a second lock-up device for locking the headrest rod when the headrest is pulled downwards to a stable position by the elastic element and a driving mechanism for driving the headrest rod locked by the second lock-up device to move vertically are arranged. According to the invention, large stroke adjustment on the headrest in a limited seat framework space is realized, requirements of tall passengers can be met, and the adaptability of the seat headrest is improved.
Description
Technical field
The present invention relates to a kind of regulating mechanism of chair headrest, relate in particular to a kind of greatly stroke control mechanism of chair headrest, belong to the auto parts and components field.
Background technology
At present, existing automobile rear seat generally is designed to the folding back seat in order to increase the luggage compartment space, when seat is folding chair headrest is fallen and be in receiving state, carry out smoothly folding operation with Convenient chair at limited interior space.
The self-checking device that can carry out to chair headrest electric up-down is arranged in the prior art, a kind of electric adjusting mechanism of chair headrest is disclosed such as Chinese utility model patent CN200977878Y, this mechanism comprises headrest guide sleeve and backrest frames assembly, the installation portion of headrest inserts headrest guide sleeve, integrated headrest is installed intubate and headrest installation flat board on the described backrest frames assembly, this regulating mechanism also comprises the headrest mounting bracket, is fixed on headrest and installs on the flat board; Headrest drives assembly, comprises continuous motor and screw mandrel, and is set in the nut on the screw mandrel; Nut is fixed on the headrest mounting bracket; Headrest guide sleeve is fixed on headrest and installs in the intubate, and the installation portion of headrest is fixed on the headrest mounting bracket.The passenger presses button motor message is passed to motor, give plastic nut power transmission by screw mandrel behind the motor received signal, and make it up-and-down movement, then under the drive of plastic nut, headrest mounting bracket up-and-down movement, and drive simultaneously headrest up-and-down movement in headrest guide sleeve.
Utilize can realize the resting the head on automatic control of lifting of above-mentioned mechanism, but above-mentioned self-checking device is because the structure space restriction of cushion frame, headrest can only lifting in less travel range, can not satisfy passenger of imposing stature for the requirement of headrest positions, has suitable limitation.
Summary of the invention
For solving the deficiencies in the prior art, the invention provides a kind of greatly stroke control mechanism of chair headrest, make chair headrest that larger adjustment travel can be arranged.
For achieving the above object, the greatly stroke control mechanism of chair headrest of the present invention comprises the head rest pole that is connected with headrest, be fixed on the headrest sheath that inserts for head rest pole on the cushion frame, also be included in the elastic element that produces elastic deformation when the relative cushion frame of headrest is in most significant bit, and head rest pole is advanced line-locked the first mechanical brake; Also comprise when headrest is pulled down to settling position by elastic element head rest pole is advanced line-locked the second mechanical brake, and the head rest pole that drives the locking of the second mechanical brake mobile driver train vertically.
As the restriction to aforesaid way, described elastic element is spring.
As the restriction to aforesaid way, described the first mechanical brake is installed on the cushion frame.
As the restriction to aforesaid way, described driver train comprises motor, the screw rod that links to each other with motor that is connected on the cushion frame and is enclosed within the screw sleeve that cooperates with it on the screw rod, described the second mechanical brake is connected on the screw sleeve, and it can make driver train pass through the second mechanical brake and drive the head rest pole motion.
As the restriction to aforesaid way, described the first mechanical brake has identical structure with the second mechanical brake, and wherein the first mechanical brake is made of the lock pin that cooperates with the head rest pole gap slot and the flexible electromagnetic mechanism of control lock pin.
As the restriction to aforesaid way, described elastic parts is connected on the non-head rest pole with gap slot, can make integral structure simple.
Adopt technique scheme, chair headrest driver train order about lower rising complete after, can continue to rise, elastic parts is stretched simultaneously, until locked by the first mechanical brake when reaching most significant bit.When chair headrest need to drop to receiving state, headrest was left behind by elastic parts first, can be driven by driver train and continue to descend.This structure can realize that headrest regulates in larger stroke, its maximal regulated stroke can be greater than 230mm, and generally so large adjustment travel can't in the seat skeleton structure, realize.This structure takes full advantage of the structure space of cushion frame, when realizing that headrest is regulated automatically, can satisfy passenger of imposing stature for the demand of headrest positions, has improved the comformability of chair headrest.
Description of drawings
Below in conjunction with the drawings and the specific embodiments the present invention is done further to describe in detail:
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is lock pin locking headrest bar state scheme drawing;
Fig. 3 is driver train and the second mechanical brake structural representation;
Fig. 4 is scheme drawing when mechanism reaches settling position among Fig. 1;
Fig. 5 is scheme drawing when mechanism reaches lowest order among Fig. 1;
Among the figure: 1, headrest; 2, head rest pole; 3, headrest sheath; 4, the first mechanical brake; 5, connection lead; 6, control module; 7, master cock; 8, drive screw; 9, motor; 10, the second mechanical brake; 11, spring; 12, cushion frame; 13, screw sleeve; 14, screw rod; 15, gap slot; 16, lock pin; 17, electromagnetic mechanism; 18, position detecting element.
The specific embodiment
Present embodiment relates to a kind of greatly stroke control mechanism of chair headrest, integral structure as shown in Figure 1, this mechanism comprises with headrest 1 two head rest poles that be arranged in parallel that are connected 2 and is fixed on the headrest sheath 3 that inserts for head rest pole 2 on the cushion frame 12, but head rest pole 2 easy on and off motion in headrest sheath 3.
Design philosophy of the present invention is, on the basis of as above structure, set up an elastic element that when headrest 1 relative cushion frame 12 is in most significant bit, produces elastic deformation, and when headrest 1 relative cushion frame 12 is in most significant bit, head rest pole 2 is advanced line-locked the first mechanical brake 4; When setting up in addition headrest 1 and being pulled down to settling position by elastic element head rest pole 2 is advanced line-locked the second mechanical brake 10, and the head rest pole 2 that drives 10 lockings of the second mechanical brake mobile driver train vertically.
Based on above-mentioned thought, present embodiment Elastic element is selected spring 11, and its two ends are connected on head rest pole 2 and the cushion frame 12, and it is stretched when headrest 1 relative cushion frame 12 is in most significant bit.This moment, head rest pole 2 was installed in the first mechanical brake 4 lockings on the cushion frame 12.As shown in Figure 2, the first mechanical brake 4 is made of the lock pin 16 that cooperates with gap slot 15 on the head rest pole 2 and control lock pin 16 flexible electromagnetic mechanisms 17, when the first mechanical brake 4 is accepted the signal that control module 6 sends, lock pin 16 stretches out, insert in the gap slot 15 of head rest pole 2, just realize the locking to head rest pole 2.
When 4 releases of the first mechanical brake, when head rest pole 2 was pulled down to settling position by spring 11, control module 6 made 2 lockings of 10 pairs of head rest poles of the second mechanical brake, and can make head rest pole 2 continue to descend under the drive of driver train.The second mechanical brake 10 has the structure identical with the first mechanical brake 4 in the present embodiment, do not repeat them here, and driver train as shown in Figure 3, comprise motor 9, the screw rod 14 that links to each other with motor 9 that is connected on the cushion frame 12 and be enclosed within on the screw rod 14 and screw sleeve 13, the second mechanical brakes 10 of cooperation be connected on the screw sleeve 13.
In use, Figure 1 shows that the state of headrest 1 when being positioned at the extreme higher position, namely rest the head on 1 relative cushion frame 12 apart from farthest the time, this moment, the lock pin 16 of the first mechanical brake 4 cooperated with gap slot 15 on the head rest pole 2,1 locking of will resting the head on 1 can not be moved headrest, and spring 11 is in extended state.Press master cock 7, control module 6 give a signal to the first mechanical brakes 4, lock pin 16 is retracted under the effect of electromagnetic mechanism 17, head rest pole 2 releases.Under the pulling force of spring 11, head rest pole 2 moves down, and no longer mobile when moving down into settling position and namely rest the head on 1 gravity and spring 11 Spring balanced, its state as shown in Figure 4.Position detecting element 18 transmits position signals to control module 6 at this moment, and the lock pin 16 of control module 6 give a signal to the second mechanical brakes 10, the second mechanical brakes 10 stretches out and inserts in the gap slot 15 head rest pole 2 lockings.Control module 6 transmitted signals start motor 9 simultaneously, drive screw rod 14 rotations, because screw sleeve 13 and screw rod 14 are for being threaded, screw rod 14 rotations just drive screw sleeve 13 and move downward, thereby continued to move down by the second mechanical brake 10 drive head rest poles 2 that are connected on the screw sleeve 13, when head rest pole 2 moves down into lowest order, position detecting element 18 transmits position signal to control module 6, control module 6 transmitted signals stop motor 9, rest the head on and 1 reach lowest order this moment, be in receiving state, its state as shown in Figure 5.
When needs headrest 1 rises, press master cock 7, control module 6 give a signals start motor 9 counter-rotatings, drive screw rod 14, screw rod 14 rotarily drives screw sleeve 13 upward movements, rise thereby drive head rest poles 2 by the second mechanical brake 10, when head rest pole 2 rose to as shown in Figure 4 position, position detecting element 18 transmitted position signals to control module 6, control module 6 sends a signal to the second mechanical brake 10, its lock pin 16 is retracted, head rest pole 2 releases, and transmitted signal stops motor 9.If tallish passenger is arranged this moment, headrest 1 manually can be mentioned, when mentioning most significant bit, position detecting element 18 transmits position signal to control module 6, the lock pin 16 that control module 6 signals to the first mechanical brake 4, the first mechanical brakes 4 stretches out, and inserts in the gap slot 15, thereby will rest the head on 1 locking, thereby realize resting the head on 1 larger stroke adjustment.
Claims (6)
1. the greatly stroke control mechanism of a chair headrest, comprise the head rest pole that is connected with headrest, be connected in the headrest sheath that inserts for head rest pole on the cushion frame, it is characterized in that: also be included in the elastic element that produces elastic deformation when the relative cushion frame of headrest is in most significant bit, and head rest pole is advanced line-locked the first mechanical brake; Also comprise when headrest is pulled down to settling position by elastic element head rest pole is advanced line-locked the second mechanical brake, and the head rest pole that drives the locking of the second mechanical brake mobile driver train vertically.
2. the greatly stroke control mechanism of chair headrest according to claim 1, it is characterized in that: described elastic element is spring.
3. the greatly stroke control mechanism of chair headrest according to claim 1, it is characterized in that: described the first mechanical brake is installed on the cushion frame.
4. the greatly stroke control mechanism of chair headrest according to claim 1, it is characterized in that: the screw sleeve that described driver train comprises motor, the screw rod that links to each other with motor that is connected on the cushion frame and is enclosed within on the screw rod and cooperates with it, described the second mechanical brake is connected on the screw sleeve.
5. the greatly stroke control mechanism of each described chair headrest in 4 according to claim 1, it is characterized in that: described the first mechanical brake has identical structure with the second mechanical brake, and wherein the first mechanical brake is made of the lock pin that cooperates with the head rest pole gap slot and the flexible electromagnetic mechanism of control lock pin.
6. the greatly stroke control mechanism of chair headrest according to claim 5 is characterized in that: described elastic element is connected on the non-head rest pole with gap slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310324730.2A CN103358953B (en) | 2013-07-30 | 2013-07-30 | Chair headrest can Long Distances regulating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310324730.2A CN103358953B (en) | 2013-07-30 | 2013-07-30 | Chair headrest can Long Distances regulating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103358953A true CN103358953A (en) | 2013-10-23 |
| CN103358953B CN103358953B (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310324730.2A Expired - Fee Related CN103358953B (en) | 2013-07-30 | 2013-07-30 | Chair headrest can Long Distances regulating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103358953B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002713A (en) * | 2014-04-29 | 2014-08-27 | 天津博信汽车零部件有限公司 | Mechanical brake and vehicle with same |
| CN108357404A (en) * | 2018-04-13 | 2018-08-03 | 宁波继峰汽车零部件股份有限公司 | A kind of electric headrest |
| CN109572509A (en) * | 2017-09-28 | 2019-04-05 | 上海汽车集团股份有限公司 | A kind of automobile, headrest and its control system |
| CN110271573A (en) * | 2019-07-30 | 2019-09-24 | 沈旭 | A kind of self-locked seat and its application method with identity recognition function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US6607242B2 (en) * | 2000-12-13 | 2003-08-19 | Lear Corporation | Head restraint assembly |
| US20040155496A1 (en) * | 2003-02-06 | 2004-08-12 | Farquhar Mark A. | Anti-backdriving active head restraint |
| CN1618656A (en) * | 2003-11-21 | 2005-05-25 | 爱信精机株式会社 | Headrest device |
| CN101600599A (en) * | 2007-01-26 | 2009-12-09 | Ddd株式会社 | The mounting structure of car seat headrest |
| CN201816484U (en) * | 2009-10-30 | 2011-05-04 | 福特环球技术公司 | Headrest system for motor vehicle |
-
2013
- 2013-07-30 CN CN201310324730.2A patent/CN103358953B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US6607242B2 (en) * | 2000-12-13 | 2003-08-19 | Lear Corporation | Head restraint assembly |
| US20040155496A1 (en) * | 2003-02-06 | 2004-08-12 | Farquhar Mark A. | Anti-backdriving active head restraint |
| CN1618656A (en) * | 2003-11-21 | 2005-05-25 | 爱信精机株式会社 | Headrest device |
| CN101600599A (en) * | 2007-01-26 | 2009-12-09 | Ddd株式会社 | The mounting structure of car seat headrest |
| CN201816484U (en) * | 2009-10-30 | 2011-05-04 | 福特环球技术公司 | Headrest system for motor vehicle |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104002713A (en) * | 2014-04-29 | 2014-08-27 | 天津博信汽车零部件有限公司 | Mechanical brake and vehicle with same |
| CN104002713B (en) * | 2014-04-29 | 2016-05-11 | 天津博信汽车零部件有限公司 | Lock device and there is its vehicle |
| CN109572509A (en) * | 2017-09-28 | 2019-04-05 | 上海汽车集团股份有限公司 | A kind of automobile, headrest and its control system |
| CN109572509B (en) * | 2017-09-28 | 2021-09-21 | 上海汽车集团股份有限公司 | Automobile, headrest and control system thereof |
| CN108357404A (en) * | 2018-04-13 | 2018-08-03 | 宁波继峰汽车零部件股份有限公司 | A kind of electric headrest |
| CN110271573A (en) * | 2019-07-30 | 2019-09-24 | 沈旭 | A kind of self-locked seat and its application method with identity recognition function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103358953B (en) | 2015-12-02 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 |
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| CF01 | Termination of patent right due to non-payment of annual fee |