CN100569562C - A kind of mechanism that initiatively rests the head on that is used for the rear-end impact neck protection - Google Patents
A kind of mechanism that initiatively rests the head on that is used for the rear-end impact neck protection Download PDFInfo
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- CN100569562C CN100569562C CNB2007101752617A CN200710175261A CN100569562C CN 100569562 C CN100569562 C CN 100569562C CN B2007101752617 A CNB2007101752617 A CN B2007101752617A CN 200710175261 A CN200710175261 A CN 200710175261A CN 100569562 C CN100569562 C CN 100569562C
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- connecting rod
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Abstract
A kind of mechanism that initiatively rests the head on that is used for the rear-end impact neck protection relates to a kind of seat system headrest structure design partly.This mechanism comprises control module, drive motor and bar-link drive, and control module is connected by signal wire (SW) with drive motor; Described bar-link drive comprises the last cross connecting rod mechanism that is arranged in parallel, cross connecting rod mechanism and the driving leading screw that links to each other with motor down.The present invention combines with active safety system, according to the judgement that automobile active safety system is caused danger for collision, adjusts the distance of headrest and automobile passenger head, thereby avoids and reduce the injury of automobile passenger neck under rear-end impact.
Description
Technical field
The present invention relates to a kind of structure design of seat system headrest part, be used for the neck protection of occupant under the rear-end impact, belong to the automotive trim equipment technical field.
Background technology
The form of traffic accident is divided into head-on crash, side collision, rear-end impact and pedestrian impact.According to 2004 year traffic casualty statistics data, in the motor vehicle accident sum, head-on crash accounts for 23.9%, and side collision accounts for 38%, and rear-end impact accounts for 15.5%.Research to the passenger protection strategy is at the rear-end impact in the above-mentioned form; rear-end impact occurrence frequency height; though cause the gross distortion of occupant's mortal injury and car body all relative less, can cause the neck whiplash injury to the front truck occupant, its society's expenditure also grows with each passing day.
Neck protection is based on seat system, and its protection philosophy is, head was relative when the backrest by seat system was limited in rear-end collision with headrest goes up trunk motion backward, thereby reduces the risk of whiplash injury.
Traditional active headrest is generally pure physical construction, main design thought has two kinds, first kind of connecting rod mechanism that links to each other with the relative motion promotion and the headrest of seat by the occupant, and then the nearly occupant's head of pusher head pillow, initiatively rest the head on as SAAB, in collision process, the occupant starts headrest because inertia is oppressed seat backward by spatial linkage, this scheme can be utilized the energy of collision, but response time is long, might be before headrest work, and whiplash injury just takes place; Second kind is triggered headrest by collision energy, is driven by spring, though that headrest mechanism moves is reversible, cannot draw in voluntarily, needs the outside to apply power (as hand propelled) and makes its gathering.
At present, automobile active safety system generally be obtain lead car and Following Car by sensing device following distance, relative velocity and relative acceleration etc. with car information, and then use algorithm to calculate and judge with speed on into degree of safety.How protecting the occupant better, active safety system is combined with headrest, judge according to carry out hazard level with car information, start headrest before collision takes place, is the current technical issues that need to address.
Summary of the invention
The purpose of this invention is to provide a kind of mechanism that initiatively rests the head on that is used for the rear-end impact neck protection; the judgement that this mechanism causes danger for collision according to automobile active safety system; adjust the distance of headrest and automobile passenger head, thereby avoid and reduce the injury of automobile passenger neck under rear-end impact.
Technical scheme of the present invention is as follows:
A kind of mechanism that initiatively rests the head on that is used for the rear-end impact neck protection, it is characterized in that: this mechanism comprises control module, drive motor and bar-link drive, control module is connected by signal wire (SW) with drive motor; Described bar-link drive comprises the last cross connecting rod mechanism that is arranged in parallel, cross connecting rod mechanism and the driving leading screw that links to each other with motor down; Be provided with the opposite screw thread of rotation direction at the two ends of described driving leading screw, match with corresponding first sliding nut and second sliding nut respectively; The described cross connecting rod mechanism of going up is made up of first connecting rod, second connecting rod and revolute pair C, and following cross connecting rod mechanism is made up of third connecting rod, the 4th connecting rod and revolute pair D; One end of described first connecting rod is connected with the first sliding nut upper surface by revolute pair, and the kinematic pair of the two-freedom of the other end by containing revolute pair and sliding pair is connected with a plate; One end of described second connecting rod is connected by the upper surface of revolute pair with second sliding nut, and the kinematic pair of the two-freedom of the other end by containing revolute pair and sliding pair is connected with a plate; One end of described third connecting rod is connected by the lower surface of revolute pair with first sliding nut, the other end by revolute pair F and the 6th connecting rod be connected, the 6th connecting rod passes through revolute pair H and is connected with a plate; One end of described the 4th connecting rod is connected with the second sliding nut lower surface by revolute pair, and the other end is connected with the 5th connecting rod by revolute pair E, and the 5th connecting rod is connected with a plate by revolute pair H.
Driving leading screw of the present invention adopts two opposite leading screws of rotation direction to be formed by connecting by coupler.The described kinematic pair that contains the two-freedom of revolute pair and sliding pair adopts the structure that turning hinge is set in chute; Perhaps adopt the structure that turning hinge is set on slide block.Described revolute pair C and revolute pair D adopt an axis.
Control module of the present invention adopts micro controller system or vehicle-mounted computer.
The present invention compared with prior art, have the following advantages and the high-lighting effect: 1. head restraint systems combines with active safety system.Active safety system triggers motor according to being the judgement of degree of safety with speeding on, and starts headrest.2. the expanding unit of resting the head on motion is reversible, and expansion and gathering motion are all by motor-driven.Traditional active headrest is generally pure physical construction, and the deficiency that response time is long or can not draw in is voluntarily arranged.3. dynamo-electric combination, run up time in advance.Tradition initiatively headrest works after rear-end impact takes place, and is triggered by collision energy; And the present invention initiatively rests the head on by combining with active safety system, starts headrest before rear-end impact takes place, and has improved the protective effect of headrest to neck.
Description of drawings
Fig. 1 is the three-dimensional structure scheme drawing of the mechanism that initiatively rests the head on.
Fig. 2 pulls down three-dimensional structure scheme drawing (front elevation) behind the plate for Fig. 1.
Fig. 3 pulls down three-dimensional structure scheme drawing (upward view) behind the plate for Fig. 1.
Among the figure: the 1-control module; The 2-motor; 3-drives leading screw; 4-primary shaft bearing; 5-second bearing seat; The 6-stay bearing plate; 7-first sliding nut; 8-second sliding nut; The 9-first connecting rod; The 10-second connecting rod; The 11-third connecting rod; 12-the 4th connecting rod; 14-the 5th connecting rod; 15-the 6th connecting rod; 16-first slide rail; 17-second slide rail; The 18-turning hinge; The 19-chute; The 20-fixed hinged seat; 21-plate.
The specific embodiment
Below in conjunction with accompanying drawing principle of the present invention, concrete structure and working process are further described.
Fig. 1～3 are the structural representation of the mechanism that initiatively rests the head on that is used for the rear-end impact neck protection of the present invention's proposition, and this mechanism comprises control module 1, drive motor 2 and bar-link drive, and control module 1 is connected by signal wire (SW) with drive motor; Described bar-link drive comprises the last cross connecting rod mechanism that is arranged in parallel, cross connecting rod mechanism and the driving leading screw 3 that links to each other with motor down; Described control module 1 adopts micro controller system or vehicle-mounted computer, when dangerous operating mode takes place, gives motor 2 energizing signal; Described driving leading screw 3 is fixed on the stay bearing plate 6 by bearing seat 4 and bearing seat 5, the two ends that drive leading screw 3 are provided with the opposite screw thread of rotation direction, match with corresponding first sliding nut 7 and second sliding nut 8 respectively, one of described driving leading screw employing or employing are made of two opposite leading screws of rotation direction of coupler bonded assembly; The aft end face of described first sliding nut 7 and second sliding nut 8 respectively with stay bearing plate 6 bearing fits, stay bearing plate 6 links to each other with seat as the support of headrest mechanisms; The described cross connecting rod mechanism of going up is made up of first connecting rod 9, second connecting rod 10 and revolute pair C; Following cross connecting rod mechanism is made up of third connecting rod 11, the 4th connecting rod 12 and revolute pair D; Described revolute pair C and revolute pair D can shared axises, also can use turning hinge to realize respectively; One end of described first connecting rod 9 is connected with the upper surface of first sliding nut 7 by revolute pair A, the kinematic pair G of the two-freedom of the other end by containing revolute pair and sliding pair is connected with a plate 21, described revolute pair G can be slided by the chute 19 of turning hinge 18 in first slide rail 16 and realize rotating and sliding, perhaps adopt the structure that turning hinge is set on slide block, first slide rail 16 is fixed on the plate 21, plate 21 supports occupant's head when rear-end impact; One end of described second connecting rod 10 is connected with the upper surface of second sliding nut 8 by revolute pair B, the kinematic pair I of the two-freedom of the other end by containing revolute pair and sliding pair is connected with a plate 21, described revolute pair I can be slided by the chute of turning hinge in second slide rail 17 and realize rotating and sliding, perhaps adopt the structure that turning hinge is set on slide block, second slide rail 17 is fixed on the plate 21; One end of described third connecting rod 11 is connected by the lower surface of revolute pair with first sliding nut 7, and the other end is connected with the 6th connecting rod 15 by revolute pair F, and the 6th connecting rod 15 is connected with fixed hinged seat 20 by revolute pair H, and fixed hinged seat 20 is fixed on the plate 21; One end of described the 4th connecting rod 12 is connected with second sliding nut, 8 lower surfaces by revolute pair, and the other end is connected with the 5th connecting rod 14 by revolute pair E, and the 5th connecting rod 14 is connected with fixed hinged seat 20 by revolute pair H.
The following describes the motion principle of headrest:
When dangerous operating mode takes place, control module 1 is given motor 2 energizing signal, motor 2 is just changeing, drive first sliding nut 7 and second sliding nut, 8 move toward one another by the opposite screw thread of drive screw 3 rotation directions, first sliding nut 7 and second sliding nut, 8 distances reduce, and then the angle ∠ ACB that drives between first connecting rod 9 and the second connecting rod 10 reduces, and the angle ∠ EDF between third connecting rod 11 and the 4th connecting rod 12 reduces.Kinematic pair D, kinematic pair E, kinematic pair H and kinematic pair F constitute rhombus DEHF on how much, so ∠ EHF=∠ EDF, ∠ EHF reduces along with reducing of ∠ EDF.Because a plate 21 and first slide rail 16, second slide rail 17 and fixed hinged seat 20 are connected,, and then realized the expansion of headrest so under the situation that above-mentioned connecting rod angle reduces, the horizontal throw between a plate 21 and the stay bearing plate 6 increases.
When dangerous operating mode finishes, control module 1 is given motor 2 energizing signal, motor 2 counter-rotatings, drive first sliding nut 7 and the 8 opposing motions of second sliding nut by the opposite screw thread of drive screw 3 rotation directions, first sliding nut 7 and second sliding nut, 8 distances increase, and then the angle ∠ ACB that drives between first connecting rod 9 and the second connecting rod 10 increases the angle ∠ EDF increase between third connecting rod 11 and the 4th connecting rod 12.Kinematic pair D, kinematic pair E, kinematic pair H and kinematic pair F constitute rhombus DEHF on how much, so ∠ EHF=∠ EDF, ∠ EHF increases along with the increase of ∠ EDF.Because a plate 21 and first slide rail 16, second slide rail 17 and fixed hinged seat 20 are connected,, and then realized the gathering of resting the head on so under the situation that above-mentioned connecting rod angle increases, the horizontal throw between a plate 21 and the stay bearing plate 6 reduces.
Claims (5)
1. mechanism that initiatively rests the head on that is used for the rear-end impact neck protection, it is characterized in that: this mechanism comprises control module, drive motor and bar-link drive, control module is connected by signal wire (SW) with drive motor; Described bar-link drive comprises the last cross connecting rod mechanism that is arranged in parallel, cross connecting rod mechanism and the driving leading screw that links to each other with motor down; The two ends of described driving leading screw are provided with the opposite screw thread of rotation direction, match with corresponding first sliding nut (7) and second sliding nut (8) respectively; The described cross connecting rod mechanism of going up is made up of first connecting rod (9), second connecting rod (10) and revolute pair C, and following cross connecting rod mechanism is made up of third connecting rod (11), the 4th connecting rod (12) and revolute pair D; One end of described first connecting rod is connected with the first sliding nut upper surface by revolute pair, and the kinematic pair of the two-freedom of the other end by containing revolute pair and sliding pair is connected with a plate; One end of described second connecting rod is connected by the upper surface of revolute pair with second sliding nut, and the kinematic pair of the two-freedom of the other end by containing revolute pair and sliding pair is connected with a plate; One end of described third connecting rod is connected by the lower surface of revolute pair with first sliding nut, and the other end is connected with the 6th connecting rod (15) by revolute pair F, and the 6th connecting rod (15) is connected with a plate by revolute pair H; One end of described the 4th connecting rod (12) is connected with the second sliding nut lower surface by revolute pair, and the other end is connected with the 5th connecting rod (14) by revolute pair E, and the 5th connecting rod (14) is connected with a plate by revolute pair H.
2. according to the described mechanism that initiatively rests the head on that is used for the rear-end impact neck protection of claim 1, it is characterized in that: described driving leading screw adopts and is made of two opposite leading screws of rotation direction of coupler bonded assembly.
3. according to the described mechanism that initiatively rests the head on that is used for the rear-end impact neck protection of claim 1, it is characterized in that: the described kinematic pair that contains the two-freedom of revolute pair and sliding pair adopts the structure that turning hinge is set in chute; Perhaps adopt the structure that turning hinge is set on slide block.
4. according to the described mechanism that initiatively rests the head on that is used for the rear-end impact neck protection of claim 1, it is characterized in that: the shared axis of described revolute pair C and revolute pair D.
5. according to the described mechanism that initiatively rests the head on that is used for the rear-end impact neck protection of claim 1, it is characterized in that: described control module adopts micro controller system or vehicle-mounted computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101752617A CN100569562C (en) | 2007-09-28 | 2007-09-28 | A kind of mechanism that initiatively rests the head on that is used for the rear-end impact neck protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101752617A CN100569562C (en) | 2007-09-28 | 2007-09-28 | A kind of mechanism that initiatively rests the head on that is used for the rear-end impact neck protection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101121386A CN101121386A (en) | 2008-02-13 |
| CN100569562C true CN100569562C (en) | 2009-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101752617A Expired - Fee Related CN100569562C (en) | 2007-09-28 | 2007-09-28 | A kind of mechanism that initiatively rests the head on that is used for the rear-end impact neck protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100569562C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826027A (en) * | 2011-06-17 | 2012-12-19 | 焦登科 | Headrest for vehicle seat and sofa backrest capable of automatically regulating angle and front and back positions |
| CN103029605A (en) * | 2011-10-08 | 2013-04-10 | 焦登科 | Vehicle-mounted seat headrest movement capable of being adjusted electrically in six directions |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202009005849U1 (en) * | 2009-04-21 | 2010-09-16 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg | Headrest for motor vehicle occupants |
| CN101712290B (en) * | 2009-08-18 | 2012-06-20 | 浙江吉利汽车研究院有限公司 | Automobile headrest |
| CN102166973B (en) * | 2010-02-26 | 2013-05-22 | 大力摩世株式会社 | Movable head rest |
| CN102407789B (en) * | 2011-11-18 | 2013-10-23 | 江苏大学 | Electromagnetic drive type crash-active headrest and control method thereof |
| EP2698277B1 (en) * | 2012-08-13 | 2016-03-23 | Schukra Gerätebau GmbH | Headrest system and method of adjusting a headrest |
| CN103101464B (en) * | 2013-02-01 | 2015-11-18 | 江苏百立汽车科技有限公司 | A kind of active safe headrest device |
| CN104002708B (en) * | 2013-08-30 | 2016-03-23 | 关朝坚 | Eliminate force of inertia Vehicular seat device |
| KR101576377B1 (en) * | 2014-07-01 | 2015-12-11 | 현대다이모스(주) | Reclining module for head rest |
| CN104494483A (en) * | 2014-12-16 | 2015-04-08 | 东北大学 | Vehicle seat preventing whiplash injury |
| CN105235563A (en) * | 2015-10-26 | 2016-01-13 | 成都云科新能汽车技术有限公司 | Application method of automobile active headrest structure for neck protection |
| CN105291918A (en) * | 2015-10-26 | 2016-02-03 | 成都云科新能汽车技术有限公司 | Adjusting method of active protection device of vehicle seat headrest |
| CN105235564A (en) * | 2015-10-26 | 2016-01-13 | 成都云科新能汽车技术有限公司 | Headrest adjusting structure capable of preventing whiplash injury of passenger |
| CN105235566A (en) * | 2015-10-26 | 2016-01-13 | 成都云科新能汽车技术有限公司 | Automobile headrest structure for neck protection after rear-end collision |
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| US20050077762A1 (en) * | 2002-02-05 | 2005-04-14 | Johnson Controls Gmbh | Head rest for the seat of a vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826027A (en) * | 2011-06-17 | 2012-12-19 | 焦登科 | Headrest for vehicle seat and sofa backrest capable of automatically regulating angle and front and back positions |
| CN103029605A (en) * | 2011-10-08 | 2013-04-10 | 焦登科 | Vehicle-mounted seat headrest movement capable of being adjusted electrically in six directions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101121386A (en) | 2008-02-13 |
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Granted publication date: 20091216 Termination date: 20200928 |