CN201761389U - Limiting structure for automobile seat - Google Patents
Limiting structure for automobile seat Download PDFInfo
- Publication number
- CN201761389U CN201761389U CN2010202576323U CN201020257632U CN201761389U CN 201761389 U CN201761389 U CN 201761389U CN 2010202576323 U CN2010202576323 U CN 2010202576323U CN 201020257632 U CN201020257632 U CN 201020257632U CN 201761389 U CN201761389 U CN 201761389U
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- backrest
- skeleton
- slide rail
- anchor shaft
- locating part
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Abstract
The utility model provides a limiting structure for an automobile seat, belonging to the automobile field and solving the problem that an energy absorbing device of the existing automobile seat can not limit the relative rotation range of a backrest of the seat. The limiting structure is fixed on the automobile seat, and the automobile seat comprises a seat plate arranged horizontally and the backrest arranged on the seat plate; a sliding rail framework is fixedly arranged under the side of the seat plate; the backrest is articulated on the corresponding sliding rail framework through a backrest framework connected with the backrest; a limiting piece is also arranged between the backrest framework and the sliding rail framework; and the limiting piece can control the rotation range of the backrest framework when the backrest framework rotates backwards. The backrest framework can limit the rotation range when the backrest framework rotates backwards relatively to the sliding rail framework once in an accident so that the backrest framework stops rotating when rotating to a certain angle, thereby reducing the degree of damage to the necks of passengers and effectively protecting the necks of the passengers.
Description
Technical field
The utility model relates to a kind of automotive seat, particularly relates to the position limiting structure that is used to limit the backrest rotation amplitude on the automotive seat, belongs to vehicular spare parts manufacturing technology field.
Background technology
Along with the fast development of auto trade and the raising of living standards of the people, the private car amount is more and more, causes the incidence of traffic accident also more and more higher therefrom, and when automobile generation rear-end collision, the easiest position that comes to harm of front truck occupant is exactly a neck.So, our company has invented " a kind of energy absorber for automotive seats " and has reached " trigger mechanism of automobile seat energy absorption device ", be used for when automobile generation rear-end collision, farthest protect front truck occupant's neck, its concrete structure is as follows: automotive seat generally comprise the slide rail skeleton that approximate horizontal places and pivotally are connected to backrest skeleton on the slide rail skeleton, its energy absorption device is both be connected absorption cells of useful metal material between backrest skeleton and slide rail skeleton and with it, the mechanical strength of absorption cell is less than the mechanical strength of backrest skeleton and slide rail skeleton, taking place and cause the backrest skeleton when contingency (particularly rear-end collision) is that centre of gration is when rotating around the slide rail skeleton with its hinged place, this absorption cell can play interception to the rotation of backrest skeleton, and the velocity of rotation of slowing down the backrest skeleton, absorption cell will be out of shape the kinetic energy that absorbs the occupant, thereby slow down the speed that backrest skeleton and backrest rotate backward, make backrest support occupant's neck reliably and neck is gently toppled over backward, play protection occupant neck purpose; For the normal use that makes automobile automotive seat when normally moving prevents that the backrest skeleton from rotating backward, between the both sides of backrest skeleton and cooresponding slide rail skeleton, a lockable mechanism is set respectively, lockable mechanism is softly eliminated the locking action of lockable mechanism by the trigger mechanism in the layer by being fixed on, and trigger mechanism worked in automobile meet accident accident (particularly rear-end collision) time.
In the safety device of above-mentioned whole protecting occupant's neck; though when contingency takes place, can play certain protection to occupant's neck; but the relative slide rail skeleton of backrest skeleton when rotating backward not to the qualification of backrest skeleton rotation amplitude; the obstacles (for example: back row occupant) that backrest turned to be 180 degree with the slide rail skeleton always or run into the backrest back just stop; so not only easy neck to the occupant causes the secondary injury; cause the neck fracture when serious; even if the life of keeping; inactive basically yet; but also cause back row occupant to be damaged easily by backrest, jeopardize back row occupant's life and health.
Summary of the invention
The utility model provides a kind of position limiting structure that can control the backrest skeleton with respect to the automotive seat of the rotation amplitude of slide rail skeleton.
The purpose of this utility model can realize by following technical proposal: a kind of position limiting structure of automotive seat, be fixedly arranged on the automotive seat, described automotive seat comprise horizontally disposed seat board and are located at backrest on the seat board, the side-lower of described seat board is installed with the slide rail skeleton, described backrest is hinged on the cooresponding slide rail skeleton by coupled backrest skeleton, it is characterized in that, also be provided with the locating part that when the backrest skeleton rotates backward, can control the rotation amplitude of backrest skeleton between described backrest skeleton and the slide rail skeleton.
These automotive seat mainly are made of seat board and the backrest that is connected on the seat board rear side, backrest is hinged on the slide rail skeleton by the backrest skeleton, between backrest and backrest skeleton, be provided with the angle that to regulate the relative seat board of backrest and the regulating mechanism that keeps this angle, the side-lower of seat board is fixed with the slide rail skeleton, the slide rail skeleton matches with sliding tray on the automotive floor panel, if when the slide rail skeleton is slided in sliding tray, just can change the front and back position of seat, the position limiting structure of these automotive seat mainly is made up of the locating part that is located between backrest skeleton and the slide rail skeleton, when rear-end collision takes place when, the front truck occupant because of effect of inertia to facing upward, its back roof pressure is quickly leaned on the layer to the soft of backrest, owing to the trigger mechanism of eliminating lockable mechanism in the energy absorption device is housed in the layer soft leaning on, cause force transmission to the contact plate of trigger mechanism, contact plate is that center of turn upwards slides with its hinged place, drive is connected the Transmission of using as both transmissions between trigger mechanism and the lockable mechanism and has also moved up, the lockup states that are slightly less than 180 degree (optimal selection 179 degree) by initial of the lock piece one of Transmission drive lockable mechanism and lock piece two are crossed 180 degree fast and are become released state, backrest just can rotate backward under the extruding at occupant back, simultaneously, the absorption cell that is fixed between backrest skeleton and the slide rail skeleton is rotated and elongates by the backrest skeleton, distortion, the speed that backrest is rotated backward obtain buffering; When the backrest skeleton is that centre of gration is when rotating around the slide rail skeleton with its hinged place, the locating part of the position limiting structure of these automotive seat can be controlled the rotation amplitude of backrest skeleton with respect to the slide rail skeleton, avoid the backrest skeleton to turn to being 180 degree or contacting backrest skeleton back obstacle (for example back row occupant) just stopping with the slide rail skeleton, the secondary of avoiding the occupant is brought injures, and back row occupant is damaged by the backrest skeleton.
In the position limiting structure of above-mentioned automotive seat, the both sides of described backrest skeleton and slide rail skeleton are respectively equipped with described locating part.Its objective is that both sides are respectively equipped with the mechanical strength that locating part can improve control backrest skeleton rotation amplitude, guarantee when control backrest skeleton rotates stressed even, stable.
In the position limiting structure of above-mentioned automotive seat, described locating part in the form of sheets.Be convenient to be installed in the both sides of backrest skeleton and slide rail skeleton, the backrest skeleton is carried out Stability Analysis of Structures when spacing.
In the position limiting structure of above-mentioned automotive seat, described locating part is chevron pointing, and the two ends of this locating part are respectively front-end and back-end.The front end of locating part is used for connecting the backrest skeleton and also can be used for the backrest skeleton is carried out spacing accordingly, decides with the installation site of backrest skeleton and slide rail skeleton.
In the position limiting structure of above-mentioned automotive seat, one side of described backrest skeleton is fixed with the anchor shaft one that level outwards is provided with, the homonymy of described slide rail skeleton is fixed with the anchor shaft two that parallels and be positioned at anchor shaft one rear with anchor shaft one, the front end of described locating part is hinged on the anchor shaft one, and the rear portion of described locating part has can make anchor shaft two slide relative and curved position-limited trough within it.When the relative slide rail skeleton of backrest skeleton rotates backward, locating part follows the backrest skeleton also to relatively rotate, position-limited trough with respect to anchor shaft two also in slide relative, the rear end that position-limited trough relative fixed axle two moves to position-limited trough is fixed axle two when blocking, because of anchor shaft two is welded on the slide rail skeleton, anchor shaft two is motionless, so the backrest skeleton is locked by locating part.
In the position limiting structure of above-mentioned automotive seat, the front end of described locating part is actively socketed on the anchor shaft one.Its objective is that locating part is rotated is more flexible, when locating part damages, be convenient to install and replacing.
In the position limiting structure of above-mentioned automotive seat, described anchor shaft one welds mutually with the backrest skeleton.Mainly by and then backrest skeleton rotation of anchor shaft one, anchor shaft one is welded on the backrest skeleton locating part, and its connection structure is simple, stable.
In the position limiting structure of above-mentioned automotive seat, described anchor shaft two welds mutually with the slide rail skeleton.Anchor shaft two mainly cooperates slip with the position-limited trough of locating part, moving to the rear end axle two that is fixed by position-limited trough relative fixed axle two blocks and carries out the relative slide rail skeleton of backrest skeleton rotary spacing, anchor shaft two is welded on the slide rail skeleton, and its connection structure is simple, stable.
Compared with prior art, the position limiting structure of the rotation amplitude when these automotive seat have been set up between backrest skeleton and slide rail skeleton mainly and to have been controlled the relative slide rail skeleton of backrest skeleton and rotate backward by locating part, when automobile meets accident accident (as rear-end collision), the relative slide rail skeleton of backrest skeleton limits backrest skeleton rotation amplitude when rotating backward, stop operating immediately when making the backrest skeleton turn to certain angle, thereby reduce extent of injury to occupant's neck, and avoid backrest injury back row occupant, can also prevent that backrest from damaging because of meeting other obstacle.
Description of drawings
Fig. 1 is the side direction structural representation of these automotive seat.
Fig. 2 is the mounting structure scheme drawing of this automobile seat energy absorption device, trigger mechanism and lockable mechanism.
Fig. 3 is the sectional structure scheme drawing with energy absorption device of position-limiting action.
Fig. 4 is the A-A sectional structure scheme drawing of Fig. 3.
Fig. 5 is the B-B sectional structure scheme drawing of Fig. 3.
Among the figure, 1 seat board; 2 backrests; 2a is soft by layer; 2b is firmly by layer; 3 slide rail skeletons; 4 backrest skeletons; 5 contact plates; 6 adapter plates; The 6a chute; 7 connecting rods; 8 sliding pins; 9 elastic components; 10 absorption cells; 11 lock pieces one; The 11a limiting section; 12 lock pieces two; The 12a draw-in groove; 13 blocks; 14 Transmissions; 15 fixed plates; The 15a pilot hole; 16 rotational pins one; 17 rotational pins two; 18 anchor shafts one; 19 anchor shafts two; 20 anchor shafts three; 21 locating parts; The 21a position-limited trough; The 21b pivoted hole; 22 rivets.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
The position limiting structure of these automotive seat is mainly used in Control of Automobile seat back-rest framework 4 with respect to slide rail skeleton 3 rotation amplitude in relative rotation, the structure of automotive seat belongs to prior art, as shown in Figure 1, mainly comprise horizontally disposed seat board 1, be located at the backrest 2 on seat board 1 rear side, the down either side of seat board 1 is fixed with the slide rail skeleton 3 of vertical setting respectively, the bottom of slide rail skeleton 3 and the sliding tray bearing fit on the automotive floor panel, as long as regulate the position of slide rail skeleton 3 in sliding tray, just can drive whole seat and move forward and backward; An end that is connected with backrest skeleton 4, two backrest skeletons 4 between the both sides of backrest 2 and cooresponding slide rail skeleton 3 respectively is connected with backrest 2, and another end is hinged on the slide rail skeleton 3 by rivet 22.
When automobile meets accident accident (as rear-end collision), slow down backrest skeleton 4 relative slide rail skeletons 3 velocity of rotation backward with being located at backrest skeleton 4 with energy absorption device between the slide rail skeleton 3, it mainly is to realize energy-absorbing by the sheet absorption cell 10 that metallic material is made, its concrete articulated structure is as follows: be fixed with level outside anchor shaft 1 and anchor shaft 2 19 respectively in the both sides of backrest skeleton 4 and slide rail skeleton 3, as shown in Figure 2, this absorption cell 10 is the annular with opening, the one end is actively socketed on the anchor shaft 1, the other end is actively socketed on the anchor shaft 2 19, when actual design, the mechanical strength that also should make absorption cell 10 is convenient to absorption cell 10 distortion to absorb energy less than backrest skeleton 4 and slide rail skeleton 3 mechanical strengths.
For the back that prevents automobile occupant when meeting accident accident along with the backrest 2 of inertia towards seat forces up, backrest 2 is rotated backward with respect to slide rail skeleton 3 and turn to always and be 180 degree with slide rail skeleton 3 or (for example: back row occupant) just stop contact backrest skeleton 4 back obstacles, between backrest skeleton 4 and slide rail skeleton 3, be provided with the position limiting structure of control backrest skeleton 4 rotation amplitudes, it mainly is to realize carrying out spacing to backrest skeleton 4 rotation amplitudes by locating part 21, for the mechanical strength of considering that locating part 21 is spacing, locating part 21 is with the sheet of metallic material making and is chevron pointing, the front end of locating part 21 has pivoted hole 21b, the rear end has curved position-limited trough 21a, during installation, make the pivoted hole 21b of locating part 21 also be actively socketed on the anchor shaft 1 and be socketed in outside the absorption cell 10, position-limited trough 21a is placed on makes position-limited trough 21a cooperate slip on the anchor shaft 2 19 with anchor shaft 19, its spacing process is as follows: when backrest skeleton 4 relative slide rail skeletons 3 rotate backward, locating part 21 is socketed on the anchor shaft 1 of backrest skeleton 4, locating part 21 and then backrest skeleton 4 rotates synchronously, this moment locating part 21 position-limited trough 21a with respect to anchor shaft 19 also in slide relative, when backrest skeleton 4 turns to certain angle, the rear end that the position-limited trough 21a relative fixed axle 2 19 of locating part 21 moves to position-limited trough 21a is fixed axle 2 19 when blocking, because of anchor shaft 2 19 is welded on the slide rail skeleton 3, anchor shaft 19 is maintained static, so backrest skeleton 4 is locked by locating part 21.
In order to guarantee when normally using seat, to prevent that backrest skeleton 4 from rotating backward, can between the both sides of backrest skeleton 4 and cooresponding slide rail skeleton 3, a lockable mechanism be set respectively, but behind the installation lockable mechanism, because backrest skeleton 4 can't rotate backward, this energy absorption device has been worked, therefore, a trigger mechanism that is used to eliminate the lockable mechanism effect also need be set.
As Fig. 3, Fig. 4, shown in Figure 5, trigger mechanism is mainly used in and receives the occupant because effect of inertia backward and the roof pressure power to the backrest 2, its mainly by main body and be connected in main body and two lockable mechanisms between two Transmissions 14 form, wherein, main body comprises the soft contact plate 5 by layer 2a rear portion that is embedded in backrest 2, the back downside of this contact plate 5 is hinged on the hard adapter plate 6 that fixes by layer 2b with backrest 2 by turning cylinder 1, this adapter plate 6 links to each other by a connecting rod 7 respectively with the both sides of contact plate 5, the front end sleeve of two connecting rods 7 is connected on the two ends of the turning cylinder 2 17 that is fixed on the contact plate 5, the rear end of two connecting rods 7 links to each other by a sliding pin 8, has the chute 6a that sliding pin 8 is slided up and down in the both sides of adapter plate 6; Two Transmissions 14 are funicular backguy, can be crooked arbitrarily, be convenient to install, the upper end of two Transmissions 14 all is connected mutually with this sliding pin 8, between sliding pin 8 and turning cylinder 1, also be provided with an elastic component 9, elastic component in the present embodiment is a spring, the upper end of spring is supported on the bottom of sliding pin 8, the lower end abutment of spring is on turning cylinder 1, when initial condition (when external force does not act on the contact plate 5), should make spring be in free state and make sliding pin 8 be in the lower end of chute 6a.
Lockable mechanism is made of lock piece 1 and lock piece 2 12, lock piece 1 is hinged with backrest skeleton 4, lock piece 2 12 is hinged with slide rail skeleton 3, the outer end of lock piece 1 is connected by clamping with the outer end of lock piece 2 12, as shown in the figure, lock piece 1 and lock piece 2 12 all are shaft-like, wherein, one end of lock piece 1 is actively socketed on the backrest skeleton 4, be fixed with the anchor shaft 3 20 that parallels with anchor shaft 1 respectively in the outside of two slide rail skeletons 3, and anchor shaft 3 20 is positioned at the place ahead of anchor shaft 1, one end of lock piece 2 12 is actively socketed on the anchor shaft 3 20, the outer end of lock piece 1 has the round bar shaped limiting section 11a of horizontally set, the outer end of lock piece 2 12 has the draw-in groove 12a that matches with this limiting section 11a, the access section that the lower end of Transmission 14 can be connected lock piece 1 and lock piece 2 12 (can be connected on the limiting section 11a, also can be connected the outer end of lock piece 2 12), and form in its access section be slightly less than 180 degree to upper angle, on slide rail skeleton 3, also be provided with one and be used to the block 13 that prevents that above-mentioned access section from moving down.
Its working process is as follows: during as if the generation rear-end collision, the front truck occupant because of effect of inertia to facing upward, its back roof pressure is quickly leaned on the layer 2a to the soft of backrest 2, because it is soft softer by layer 2a, cause force transmission to contact plate 5, contact plate 5 is that center of turn upwards slides with its hinged place, impel the upper end drive sliding pin 8 of connecting rod 7 to move towards the upper end of chute 6a, at this moment, Transmission 14 is also just followed sliding pin 8 and has been moved up, the access section that the lower end of Transmission 14 drives lock piece 1 and lock piece 2 12 moves up, thereby increased lock piece 1 and lock piece 2 12 is formed to upper angle, cross 180 degree fast by initial 180 degree (optimal selection 179 degree) that are slightly less than, at this moment, lockable mechanism is in released state, backrest 2 just can rotate backward under the extruding at occupant back, simultaneously, absorption cell 10 beginning energy-absorbings, because slide rail skeleton 3 maintains static anchor shaft 2 19, and anchor shaft 1 rotates backward along with the hinged place of backrest skeleton 4 around backrest skeleton 4, absorption cell 10 is elongated, and its shape slowly becomes vertical bar shaped by the annular of opening, the process of distortion also is the process of energy-absorbing, when backrest 2 rotates backward, locating part 21 also follows backrest skeleton 4 to rotate synchronously, the position-limited trough 21a of locating part 21 with respect to anchor shaft 19 also in slide relative, when backrest skeleton 4 turned to certain angle, the rear end that the position-limited trough 21a relative fixed axle 19 of locating part 21 moves to position-limited trough 21a was fixed axle 19 when blocking, 4 limited 21 lockings of backrest skeleton thus.
Reliable, laborsaving for Transmission 14 is transmitted, can a fixed plate 15 be installed directly over corresponding to the access section of lock piece 1 and lock piece 12 on the backrest skeleton 4, and on this fixed plate 15, open one and be used for pilot hole 15a that Transmission 14 is vertically passed.
Claims (8)
1. the position limiting structure of automotive seat, be fixedly arranged on the automotive seat, described automotive seat comprise horizontally disposed seat board (1) and are located at backrest (2) on the seat board (1), the side-lower of described seat board (1) is installed with slide rail skeleton (3), described backrest (2) is hinged on the cooresponding slide rail skeleton (3) by coupled backrest skeleton (4), it is characterized in that, also be provided with the locating part (21) that to control the rotation amplitude of backrest skeleton (4) when backrest skeleton (4) when rotating backward between described backrest skeleton (4) and the slide rail skeleton (3).
2. the position limiting structure of automotive seat according to claim 1 is characterized in that, described backrest skeleton (4) is respectively equipped with described locating part (21) with the both sides of slide rail skeleton (3).
3. the position limiting structure of automotive seat according to claim 1 and 2 is characterized in that, described locating part (21) in the form of sheets.
4. the position limiting structure of automotive seat according to claim 1 and 2 is characterized in that, described locating part (21) is chevron pointing, and the two ends of this locating part (21) are respectively front-end and back-end.
5. the position limiting structure of automotive seat according to claim 4, it is characterized in that, one side of described backrest skeleton (4) is fixed with the anchor shaft one (18) that level outwards is provided with, the homonymy of described slide rail skeleton (3) is fixed with the anchor shaft two (19) that parallels and be positioned at anchor shaft one (18) rear with anchor shaft one (18), the front end of described locating part (21) is hinged on the anchor shaft one (18), and the rear portion of described locating part (21) has can make anchor shaft two (19) slide relative and curved position-limited trough (21a) within it.
6. the position limiting structure of automotive seat according to claim 5 is characterized in that, the front end of described locating part (21) is actively socketed on the anchor shaft one (18).
7. the position limiting structure of automotive seat according to claim 5 is characterized in that, described anchor shaft one (18) welds mutually with backrest skeleton (4).
8. the position limiting structure of automotive seat according to claim 5 is characterized in that, described anchor shaft two (19) welds mutually with slide rail skeleton (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202576323U CN201761389U (en) | 2010-07-14 | 2010-07-14 | Limiting structure for automobile seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202576323U CN201761389U (en) | 2010-07-14 | 2010-07-14 | Limiting structure for automobile seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201761389U true CN201761389U (en) | 2011-03-16 |
Family
ID=43713997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202576323U Expired - Fee Related CN201761389U (en) | 2010-07-14 | 2010-07-14 | Limiting structure for automobile seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201761389U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105109369A (en) * | 2015-08-28 | 2015-12-02 | 北汽福田汽车股份有限公司 | Angle regulator, seat framework, automobile seat and angle regulator designing method |
| CN106741963A (en) * | 2016-12-30 | 2017-05-31 | 万丰航空工业有限公司 | A kind of seat chair with adjustable on light-duty sport plane |
| CN114771368A (en) * | 2022-05-17 | 2022-07-22 | 诺博汽车***有限公司 | Seat back adjusting mechanism and seat |
-
2010
- 2010-07-14 CN CN2010202576323U patent/CN201761389U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105109369A (en) * | 2015-08-28 | 2015-12-02 | 北汽福田汽车股份有限公司 | Angle regulator, seat framework, automobile seat and angle regulator designing method |
| CN106741963A (en) * | 2016-12-30 | 2017-05-31 | 万丰航空工业有限公司 | A kind of seat chair with adjustable on light-duty sport plane |
| CN114771368A (en) * | 2022-05-17 | 2022-07-22 | 诺博汽车***有限公司 | Seat back adjusting mechanism and seat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20130714 |