CN208248031U - A kind of motor vehicle seat back spring and motor vehicle seat back can reduce whiplash injury - Google Patents
A kind of motor vehicle seat back spring and motor vehicle seat back can reduce whiplash injury Download PDFInfo
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- CN208248031U CN208248031U CN201820394864.XU CN201820394864U CN208248031U CN 208248031 U CN208248031 U CN 208248031U CN 201820394864 U CN201820394864 U CN 201820394864U CN 208248031 U CN208248031 U CN 208248031U
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Abstract
The utility model discloses a kind of motor vehicle seat back springs and motor vehicle seat back that can reduce whiplash injury, motor vehicle seat back spring is equipped with backrest spring main body and multiple connectors, each connector passes through an extension spring and is fixedly connected with backrest spring main body, and, by using the extension spring of respective performances, so that: when backrest spring main body is fixedly connected on car seat back frame by each connector, each extension spring is in elastic stretching deformation state, and when using rearward collision instantaneous acceleration of the automobile by relative velocity in 20km/h or more of motor vehicle seat back spring, each extension spring enters state of plastic deformation.Under the premise of the utility model can provide suitable elasticity and enough support in automobile normal running for passenger-back, alleviate the whiplash injury that passenger's neck is subject in collision process after middle low speed, improve the crashworthiness of automotive seat, and have the advantages that structure is simply and at low cost, there is practical application value.
Description
Technical field
A kind of motor vehicle seat back spring and motor vehicle seat back that can reduce whiplash injury of the utility model.
Background technique
With the development of the automobile industry, the passive security performance of automobile is constantly being promoted, while according to accident in recent years
Statistical data, when colliding especially vehicle generation rear-end collision after low speed, the incidence of whiplash injury is high, by collision vehicle
Driver and occupant under the collective effect of crash acceleration and head inertia force, neck can generate one as whip is hit suddenly
Phenomenon, although not will cause mortality injury, neck this " whiplash injury " is secondary property wound the most serious in traffic accident
Evil, and rehabilitation course is very very long and complicated after its wound, or even can generate the permanent injury that can not be cured.
One of key components and parts as automobile, automotive seat do not require nothing more than connection and reasonable arrangement and guarantee riding comfort, also
Emphasis is needed to meet security requirement.It is low in the collision safety performance test of China's new car assessment routine C-NCAP defined
It is for evaluating car seat headrest to the guarantor of occupant's neck that neck protection test (hereinafter referred to as " whipping test ") is collided after speed
Protect effect.During whipping test, if the time of contact of dummy neck and chair headrest is more early, it is equivalent to chair headrest
Protective effect is generated to dummy neck in advance, whiplash injury degree is weaker, and it is better to the protecting effect of neck, whip obtaining for test
Dividing will be higher.
Currently, the backrest spring of automotive seat is usually the backrest spring bracket being mounted in the form of steel wire by dorsal plate
On, although this backrest spring can generate preferable supporting role to seat occupants back, its rigidity is relatively strong, causes whipping
The dummy back obstruction by backrest spring to a certain extent, makes the time of contact of dummy neck and chair headrest during test
Postponed, adverse effect is generated to the performance of whipping increasingly paid attention to.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of motor vehicle seat backs that can reduce whiplash injury
Spring and motor vehicle seat back.
Above-mentioned technical problem is solved, technical solution used by the utility model is as follows:
A kind of motor vehicle seat back spring can reduce whiplash injury is equipped with backrest spring main body and multiple connectors, described
Connector is used to the backrest spring main body being fixedly connected on car seat back frame, it is characterised in that: described in each
Connector passes through an extension spring and is fixedly connected with the backrest spring main body, also, by using described in respective performances
Extension spring, so that: the backrest spring main body is fixedly connected on the car seat back frame in each connector
When upper, each extension spring is in elastic stretching deformation state, and in the vapour using the motor vehicle seat back spring
For vehicle by relative velocity in the rearward collision instantaneous acceleration of 20km/h or more, each extension spring enters plasticity
Deformation state.
As preferred embodiments of the present invention: being fixedly connected with the backrest spring main body in each connector
On the car seat back frame, and the extension spring is not affected by the load effect outside the motor vehicle seat back spring
When, the elastic stretching deformation direction of the extension spring is located at the plane where the backrest spring main body.
As preferred embodiments of the present invention: the backrest spring main body is by the first side frame, the second side frame, center
Bar and Duo Gen snake spring composition, the center-pole correspond to each snake spring and are equipped with a through-hole, and each through-hole edge
The middle part of the extending direction arranged for interval of the center-pole, each snake spring passes through corresponding through-hole on the center-pole,
The both ends of each snake spring are separately fixed on first side frame and the second side frame, so that each snake spring is along institute
State the extending direction arranged for interval of center-pole.
As preferred embodiments of the present invention: wherein the connector of half by corresponding extension spring with
First side frame is fixedly connected, the other half the connector connects by the way that corresponding extension spring and second side frame are fixed
It connects, also, connects the connector and extension spring and the connector and stretching bullet that connect second side frame of first side frame
Spring is symmetrical along the center-pole.
As preferred embodiments of the present invention: the extension spring is fixedly connected with position with first side frame
Coincide with the position that is fixedly connected of wherein a snake spring and first side frame, the extension spring and second side frame
Be fixedly connected with that position coincides with wherein a snake spring and second side frame be fixedly connected with position.
As preferred embodiments of the present invention: the snake spring and the root snake spring are in same position and described first
Extension spring that side frame is fixedly connected, the extension spring being fixedly connected in same position and second side frame with the root snake spring,
Corresponding two connectors are made of same root steel wire bent, and the steel wire is by being wrapped on first side frame described in realization
Same position of the snake spring with corresponding extension spring in first side frame is fixedly connected, and the steel wire is by being wrapped in described
Realize that same position of the snake spring with corresponding extension spring in second side frame is fixedly connected on two side frames.
As preferred embodiments of the present invention: each extending direction along the center-pole is spaced apart described
It in snake spring, is connected between the extension spring and adjacent two snake springs of connector, at least has one and be not connected with having
The snake spring of the extension spring and connector.
As preferred embodiments of the present invention: the connector is hook.
As preferred embodiments of the present invention: being equipped with wearing bush on the connector, that is, hook.
A kind of motor vehicle seat back can reduce whiplash injury is equipped with car seat back frame and motor vehicle seat back
Spring, it is characterised in that: the motor vehicle seat back spring is above-mentioned motor vehicle seat back spring；The car seat back frame
Left plate inner sidewall and right side plate inner sidewall on be respectively equipped with multiple attachment bases, the attachment base adapts to the connector,
And each attachment base corresponds to the connector of the motor vehicle seat back spring, each described connector and corresponding connection
Seat connection, the backrest spring main body is fixedly connected on car seat back frame.
Compared with prior art, the utility model has the following beneficial effects:
First, the utility model realizes the connection between connector and backrest spring main body using extension spring, when this is practical
After novel motor vehicle seat back spring is installed to car seat back frame, spring of the backrest spring main body by each extension spring
Pulling force effect is pre-tightened on car seat back frame；In the case where automobile normal running, leaned on by what spring tension pre-tightened
On the one hand back spring main body has certain elasticity to provide more comfortable backrest effect for passenger, on the other hand have centainly again
Rigidity provide enough supports with the back to passenger；And when automobile occurs to collide after low speed in rear-end collision etc., due to
Extension spring enters state of plastic deformation, and since rigidity of the extension spring on collision course be not high, it reduce automotive seats
Rigidity of the chair back spring on collision course enables motor vehicle seat back spring be easier to deform on collision course, so that passenger
Back increases slipping into motor vehicle seat back due to the deformation of motor vehicle seat back spring in collision process after middle low speed
Amount plays a protective role to the neck of passenger, mitigation multiplies with enabling neck and the time of contact of chair headrest of passenger be shifted to an earlier date
The whiplash injury that objective neck is subject in collision process after middle low speed；And when high velocity impact occurs for automobile, extension spring also may be used
Enhance motor vehicle seat back spring to the buffer function of passenger；
Therefore, the utility model can provide suitable elasticity in automobile normal running for passenger-back and support enough
Under the premise of, the whiplash injury that passenger's neck is subject in collision process after middle low speed is alleviated, the collision of automotive seat is improved
Safety, and have the advantages that structure is simply and at low cost, there is practical application value.
Second, the utility model uses the backrest spring master being made of the first side frame, the second side frame, center-pole and Duo Gen snake spring
Body is reduced in backrest spring main body by the deformation that center-pole limits snake spring when passenger-back leans against on motor vehicle seat back
Between the inside deflection in position, on the one hand improve passenger as a result, in automobile normal running and lean against relaxing on motor vehicle seat back
Adaptive accelerates the speed that extension spring enters state of plastic deformation when on the other hand colliding after low speed in automobile generation, with
Further mitigate the whiplash injury that passenger's neck is subject in collision process after middle low speed.
Third, the utility model by the connector for connecting first side frame and extension spring with connect second side frame
Connector and extension spring it is symmetrical along the center-pole, it can be ensured that motor vehicle seat back spring plays more passenger-back
For uniform supporting role, and more effectively mitigate the whiplash injury that passenger's neck is subject in collision process after middle low speed.
4th, the utility model is by the way that snake spring, extension spring and connector to be integrally formed, i.e., by same root steel wire bent
They are made, the production technology of motor vehicle seat back spring can be simplified, reduces the production cost of motor vehicle seat back spring, improves vapour
The speed of production of vehicle seat chair back spring.
Detailed description of the invention
The utility model is described in further detail in the following with reference to the drawings and specific embodiments:
Fig. 1 is the structural schematic diagram of the motor vehicle seat back spring of the utility model；
Fig. 2 is the structural schematic diagram of the motor vehicle seat back of the utility model.
Specific embodiment
As shown in Figure 1, disclosed by the utility model is a kind of motor vehicle seat back spring that can reduce whiplash injury, it is equipped with
Backrest spring main body 1 and multiple connectors 2, connector 2 are used to backrest spring main body 1 being fixedly connected on car seat back frame 4
On.
The inventive concept of the utility model are as follows: each connector 2 passes through an extension spring 3 and backrest spring main body 1
It is fixedly connected, also, by using the extension spring of respective performances 3, so that: it is in each connector 2 that backrest spring main body 1 is fixed
When being connected on car seat back frame 4, each extension spring 3 is in elastic stretching deformation state, and is using vapour
The automobile of vehicle seat chair back spring by relative velocity in the rearward collision instantaneous acceleration of 20km/h or more, each stretching bullet
Spring 3 enters state of plastic deformation.
To, after the motor vehicle seat back spring of the utility model is installed to car seat back frame 4, backrest spring main body
The 1 spring tension effect by each extension spring 3 is pre-tightened on car seat back frame 4；In automobile normal running
In the case of, have certain elasticity more comfortable to provide for passenger by 1 one side of backrest spring main body that spring tension pre-tightens
On the other hand backrest effect there is certain rigidity to provide enough supports with the back to passenger again；And it is chased after in automobile
When being collided after low speed in tail accident etc., since extension spring 3 enters state of plastic deformation, and since extension spring 3 is in collision side
Upward rigidity is not high, and it reduce rigidity of the motor vehicle seat back spring on collision course, and motor vehicle seat back spring is enabled to touch
Hit on direction be easier deform so that the back of passenger after middle low speed in collision process due to the deformation of motor vehicle seat back spring
And the amount of slipping into motor vehicle seat back is increased, it is right to enable neck and the time of contact of chair headrest of passenger be shifted to an earlier date
The neck of passenger plays a protective role, and mitigates the whiplash injury that passenger's neck is subject in collision process after middle low speed；And in vapour
When high velocity impact occurs for vehicle, extension spring 3 can also enhance motor vehicle seat back spring to the buffer function of passenger；Therefore, this is practical
It is novel can in automobile normal running for passenger-back provide suitable elasticity and enough support under the premise of, alleviate passenger's neck
The whiplash injury that portion is subject in collision process after middle low speed improves the crashworthiness of automotive seat, and has structure letter
Single and at low cost advantage has practical application value.
On the basis of foregoing invention design, the utility model can use following preferred structure:
As preferred embodiments of the present invention: backrest spring main body 1 being fixedly connected on automobile in each connector 2
On seat back-rest framework 4, and i.e. passenger does not rest against vapour when extension spring 3 is not affected by the load effect outside motor vehicle seat back spring
When on vehicle seat chair back, the elastic stretching deformation direction of extension spring 3 is located at the plane where backrest spring main body 1.
As preferred embodiments of the present invention: backrest spring main body 1 is by the first side frame 11, the second side frame 12, center
Bar 13 and Duo Gen snake spring 14 form, and the corresponding each snake spring 14 of center-pole 13 is equipped with a through-hole, and each through-hole is along center
The middle part of the extending direction arranged for interval of bar 13, each snake spring 14 passes through corresponding through-hole on center-pole 13, each snake spring
14 both ends are separately fixed on the first side frame 11 and the second side frame 12, so that each snake spring 14 is along the extension side of center-pole 13
To arranged for interval.To, the deformation of snake spring 14 is limited by center-pole 13, when passenger-back leans against on motor vehicle seat back,
The inside deflection in the intermediate position of backrest spring main body 1 is reduced, passenger is on the one hand improved as a result, and is leaned against in automobile normal running
Comfort on motor vehicle seat back accelerates extension spring 3 when on the other hand colliding after low speed in automobile generation and enters modeling
The speed of property deformation state, further to mitigate the whiplash injury that passenger's neck is subject in collision process after middle low speed.
As preferred embodiments of the present invention: wherein the connector 2 of half passes through corresponding extension spring 3 and
Side frame 11 is fixedly connected, the other half connector 2 is fixedly connected by corresponding extension spring 3 with the second side frame 12, also,
Connect the first side frame 11 connector 2 and extension spring 3 with the connector 2 and extension spring 3 for connecting the second side frame 12 along center
Bar 13 is symmetrical.To, it is ensured that motor vehicle seat back spring plays more uniform supporting role to passenger-back, and more effective
The whiplash injury that is subject in collision process after middle low speed of mitigation passenger's neck.
As preferred embodiments of the present invention: extension spring 3 is overlapped with the position that is fixedly connected of the first side frame 11
In the position that is fixedly connected of a wherein snake spring 14 and the first side frame 11, extension spring 3 is fixedly connected with position with the second side frame 12
Set coincide with wherein a snake spring 14 and the second side frame 12 be fixedly connected with position.
As preferred embodiments of the present invention: snake spring 14 and the root snake spring 14 are in same position and the first side frame
11 be fixedly connected extension spring 3, be fixedly connected in same position and the second side frame 12 with the root snake spring 14 extension spring 3,
Corresponding two connectors 2 are made of same root steel wire bent, and steel wire realizes 14 He of snake spring by being wrapped on the first side frame 11
Corresponding extension spring 3 is fixedly connected in the same position of the first side frame 11, and steel wire is realized by being wrapped on the second side frame 12
Same position of the snake spring 14 with corresponding extension spring 3 in the second side frame 12 is fixedly connected.To by snake spring 14, stretch bullet
Them are made by same root steel wire bent in the integrated molding of spring 3 and connector 2, can simplify the life of motor vehicle seat back spring
Production. art reduces the production cost of motor vehicle seat back spring, improves the speed of production of motor vehicle seat back spring.
As preferred embodiments of the present invention: the spaced apart snake spring 14 of each extending direction along center-pole 13
In, it is connected between extension spring 3 and adjacent two snake springs 14 of connector 2, at least has one and be not connected with having extension spring 3
With the snake spring 14 of connector 2.Wherein, the specific distribution mode of extension spring 3 and connector 2, can be according to motor vehicle seat back bone
The structure of frame 4 designs and the supported design of passenger-back is arranged in motor vehicle seat back spring.
As preferred embodiments of the present invention: connector 2 is hook, and motor vehicle seat back spring is passed through
Hook is connected on car seat back frame 4, more convenient.Preferably, connector 2 is linked up with and is equipped with abrasionproof
Set generates abrasion to prevent hook from contacting in the state of long-term stress with car seat back frame 4.
As shown in Fig. 2, being equipped with vapour the invention also discloses a kind of motor vehicle seat back that can reduce whiplash injury
Vehicle seats backrest frames 4 and above-mentioned motor vehicle seat back spring；41 inner sidewall of left plate and right side plate of car seat back frame 4
Multiple attachment bases 5 are respectively equipped on 42 inner sidewalls, attachment base 5 adapts to connector 2, and each attachment base 5 corresponds to automotive seats
The connector 2 of chair back spring, each connector 2 connect with corresponding attachment base 5, backrest spring main body 1 are fixedly connected on
On car seat back frame 4.It wherein, is the case where hook for connector 2, attachment base 5 is then using the installation with hanging hole
Seat.
The utility model is not limited to above-mentioned specific embodiment, according to above content, according to the ordinary skill of this field
Knowledge and customary means, under the premise of not departing from the utility model above-mentioned basic fundamental thought, the utility model can also be made
Equivalent modifications, replacement or the change of other diversified forms, all fall among the protection scope of the utility model.
Claims (10)
1. a kind of motor vehicle seat back spring that can reduce whiplash injury is equipped with backrest spring main body (1) and multiple connectors (2),
The connector (2) is used to the backrest spring main body (1) being fixedly connected on car seat back frame (4), and feature exists
In: each described connector (2) is fixedly connected by an extension spring (3) with the backrest spring main body (1), also,
By using the extension spring (3) of respective performances, so that: in each connector (2) by the backrest spring main body (1)
When being fixedly connected on the car seat back frame (4), each extension spring (3) is in elastic stretching deformation
State, and instantaneously add in rearward collision of the automobile using the motor vehicle seat back spring by relative velocity in 20km/h or more
When speed, each extension spring (3) enters state of plastic deformation.
2. can reduce the motor vehicle seat back spring of whiplash injury according to claim 1, it is characterised in that: each described
The backrest spring main body (1) is fixedly connected on the car seat back frame (4) by connector (2), and the stretching bullet
When spring (3) is not affected by the load effect outside the motor vehicle seat back spring, the elastic stretching deformation side of the extension spring (3)
To positioned at the plane where the backrest spring main body (1).
3. the motor vehicle seat back spring according to claim 1 or claim 2 that can reduce whiplash injury, it is characterised in that: described
Backrest spring main body (1) is made of the first side frame (11), the second side frame (12), center-pole (13) and more snake springs (14), it is described in
The corresponding each snake spring (14) of core bar (13) is equipped with a through-hole, and each through-hole is along the center-pole (13)
Extending direction arranged for interval, the middle part of each snake spring (14) passes through corresponding through-hole on the center-pole (13), each
The both ends of snake spring (14) described in root are separately fixed on first side frame (11) and the second side frame (12), so that described in each
Extending direction arranged for interval of the snake spring (14) along the center-pole (13).
4. can reduce the motor vehicle seat back spring of whiplash injury according to claim 3, it is characterised in that: wherein half
The connector (2) is fixedly connected by corresponding extension spring (3) with first side frame (11), the other half the connection
Part (2) is fixedly connected by corresponding extension spring (3) with second side frame (12), also, connects first side frame
(11) connector (2) and extension spring (3) and the connector (2) and extension spring (3) edge for connecting second side frame (12)
The center-pole (13) is symmetrical.
5. can reduce the motor vehicle seat back spring of whiplash injury according to claim 4, it is characterised in that: the stretching bullet
Spring (3) coincides with wherein a snake spring (14) and first side frame with the position that is fixedly connected of first side frame (11)
(11) be fixedly connected with position, the extension spring (3) coincides with wherein with the position that is fixedly connected of second side frame (12)
A piece snake spring (14) is fixedly connected with position with second side frame (12).
6. can reduce the motor vehicle seat back spring of whiplash injury according to claim 5, it is characterised in that: the snake spring
(14), the extension spring (3) being fixedly connected with the root snake spring (14) in same position and first side frame (11) and the root snake
Extension spring (3) that spring (14) is fixedly connected in same position with second side frame (12), corresponding two connectors (2) by
Same root steel wire bent is made, and the steel wire realizes the snake spring (14) and corresponding by being wrapped on first side frame (11)
Extension spring (3) be fixedly connected in the same position of first side frame (11), the steel wire is by being wrapped in described second
Realize that the snake spring (14) and corresponding extension spring (3) are fixed in the same position of second side frame (12) on side frame (12)
Connection.
7. can reduce the motor vehicle seat back spring of whiplash injury according to claim 5, it is characterised in that: each along described
In the spaced apart snake spring (14) of the extending direction of center-pole (13), it is connected with the extension spring (3) and connector (2)
Adjacent two snake springs (14) between, at least there is the not connected snake for having the extension spring (3) and connector (2)
Spring (14).
8. the motor vehicle seat back spring according to claim 1 or claim 2 that can reduce whiplash injury, it is characterised in that: described
Connector (2) is hook.
9. can reduce the motor vehicle seat back spring of whiplash injury according to claim 8, it is characterised in that: the connection
Wearing bush is installed on the i.e. described hook of part (2).
10. a kind of motor vehicle seat back that can reduce whiplash injury, is equipped with car seat back frame (4) and automotive seat leans on
Carry on the back spring, it is characterised in that: the motor vehicle seat back spring is motor vehicle seat back described in claim 1 to 9 any one
Spring；It is respectively equipped on left plate (41) inner sidewall and right side plate (42) inner sidewall of the car seat back frame (4) multiple
Attachment base (5), the attachment base (5) adapt to the connector (2), and each attachment base (5) corresponds to the automobile
The connector (2) of backrest spring, each described connector (2) connects with corresponding attachment base (5), by the backrest spring
Main body (1) is fixedly connected on car seat back frame (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820394864.XU CN208248031U (en) | 2018-03-22 | 2018-03-22 | A kind of motor vehicle seat back spring and motor vehicle seat back can reduce whiplash injury |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820394864.XU CN208248031U (en) | 2018-03-22 | 2018-03-22 | A kind of motor vehicle seat back spring and motor vehicle seat back can reduce whiplash injury |
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| CN208248031U true CN208248031U (en) | 2018-12-18 |
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ID=64609303
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108372811A (en) * | 2018-03-22 | 2018-08-07 | 广汽零部件有限公司 | A kind of motor vehicle seat back spring and motor vehicle seat back that can mitigate whiplash injury |
-
2018
- 2018-03-22 CN CN201820394864.XU patent/CN208248031U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108372811A (en) * | 2018-03-22 | 2018-08-07 | 广汽零部件有限公司 | A kind of motor vehicle seat back spring and motor vehicle seat back that can mitigate whiplash injury |
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