CN208232889U - A kind of locking structure for turnover vehicle headrest - Google Patents
A kind of locking structure for turnover vehicle headrest Download PDFInfo
- Publication number
- CN208232889U CN208232889U CN201820606978.6U CN201820606978U CN208232889U CN 208232889 U CN208232889 U CN 208232889U CN 201820606978 U CN201820606978 U CN 201820606978U CN 208232889 U CN208232889 U CN 208232889U
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- locking
- pawl
- headrest
- groove
- convex block
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Abstract
The utility model belongs to technical field of automobile parts, provides a kind of locking structure for turnover vehicle headrest, comprising: ratchet, lower end offer the groove for connecting with strut, and ratchet upper end offers lock groove, and ratchet upper end has sliding shoe；Pawl, lower end are equipped with locking convex block, and locking convex block stretches in lock groove and is resisted against lock groove side end face, are offered on pawl for the through-hole with headrest connection, pawl lower end offers sliding groove；When pawl rotation, locking convex block can be moved upwards and be unlocked with lock groove；After headrest overturning, sliding shoe can be abutted against in the sliding groove.Compared with prior art, the utility model has the advantage of the unlocked step of the locking structure for turnover vehicle headrest is simple, convenient for unlock, the simple production cost of its structure is low, it can be widely used, sliding shoe can be slided along sliding groove during locking, and ratchet caused by moment locking power is excessive when avoiding pawl locking damages.
Description
Technical field
The utility model belongs to technical field of automobile parts, and in particular to a kind of locking for turnover vehicle headrest
Structure.
Background technique
The effect of passenger car ordinary headrest is usually to provide support for driver and passenger head, and common heel row headrest does not have front and back
Turn over function cannot overturn forward headrest according to the habit and security needs of driver, enough to provide driver
Visual-field space.Common heel row headrest cannot overturn headrest when seat fell simultaneously, to provide enough standby box spaces, drop
The comfort and practicability of low headrest, during China Automobile Industry, overturn headrest using more and more common, but it is existing
There is the locking structure in the overturning headrest in technology to be typically complex, high production cost, unlocked step is more, repeatedly locks after locking
Connection relationship only between structure is unstable, and locking structure is easy to produce shaking, causes headrest movable, influences the comfortable of headrest
Property.
Utility model content
Technical problem to be solved in the utility model is the status for the prior art, and is provided a kind of for convertible
The locking structure of automotive headrest.
Technical solution adopted by the utility model to solve the above technical problems is as follows: proposing a kind of for turnover vehicle head
The locking structure of pillow, comprising:
Ratchet, lower end offer the groove for connecting with strut, and the ratchet upper end offers lock groove, on ratchet
End has sliding shoe；
Pawl, lower end are equipped with locking convex block, and the locking convex block stretches in the lock groove and is resisted against lock groove
Side end face offers on pawl for the through-hole with headrest connection, and pawl lower end offers sliding groove；
When the pawl rotation, the locking convex block can be moved upwards and be unlocked with lock groove；
After headrest overturning, the sliding shoe can be abutted against in the sliding groove.
In a kind of above-mentioned locking structure for turnover vehicle headrest, the locking convex block has the first locking
Face, the lock groove have the second locking surface, and first locking surface is resisted against second locking surface.
In a kind of above-mentioned locking structure for turnover vehicle headrest, the sliding groove is arc.
In a kind of above-mentioned locking structure for turnover vehicle headrest, the sliding shoe is square structure and thereon
Side has rounded corner.
Compared with prior art, the solution for the locking structure that the utility model has the advantage of this for turnover vehicle headrest
Lock-step is suddenly simple, and convenient for unlock, the simple production cost of structure is low, can be widely used, and sliding shoe being capable of edge during locking
Sliding groove sliding, ratchet caused by moment locking power is excessive when avoiding pawl locking damage.
Detailed description of the invention
Fig. 1 is this three-dimensional view for the locking structure of turnover vehicle headrest；
Fig. 2 is the three-dimensional view of ratchet；
Fig. 3 is the three-dimensional view of pawl.
In figure, ratchet 1, groove 2, lock groove 3, sliding shoe 4, pawl 5, locking convex block 6, through-hole 7, sliding groove 8, first are locked
Only face 9, the second locking surface 10, rounded corner 11.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
As shown in Figure 1, this locking structure for turnover vehicle headrest, comprising: ratchet 1, lower end, which offers, to be used for
The groove 2 connecting with strut, 1 upper end of ratchet offer lock groove 3, and 1 upper end of ratchet has sliding shoe 4；Pawl 5, lower end is set
Have a locking convex block 6, locking convex block 6 stretches in lock groove 3 and is resisted against 3 side end face of lock groove, offered on pawl 5 for
The through-hole 7 of headrest connection, 5 lower end of pawl offers sliding groove 8；When pawl 5 rotates, locking convex block 6 can be moved upwards simultaneously
It is unlocked with lock groove 3；After headrest overturning, sliding shoe 4 can be abutted against in sliding groove 8.
Ratchet 1 is fixedly connected with strut, and pawl 5 is connected in headrest, the locking convex block 6 of 5 lower end of pawl can extend into
In lock groove 3, because 6 one end of locking convex block is resisted against on 3 side end face of lock groove, when headrest has overturning trend, lock
Only 3 side end face of slot can provide a reaction force for locking convex block 6, and this makes it possible to guarantee to rest the head on to keep under vertical state
Stablize, when needing to overturn headrest, pawl 5 is rotated up first, and ratchet 1 can be rotation with the through-hole 7 with headrest connection at this time
Axis rotation, drives locking convex block 6 to be rotated up, locking convex block 6 progressively disengages lock groove 3, i.e. 3 side end face of lock groove can not continue
Active force is provided for locking convex block 6, headrest can either be overturn at this time, unlocked step is few easy to operate, and structure is simple, production cost
It is low, it is convenient for large-scale use.
After headrest overturning, sliding shoe 4 can be abutted against in sliding groove 8, be restored by rollover states to perpendicular when needing to rest the head on
When straight state, apply a pressure backward to headrest first, headrest is able to drive pawl 5 and rotates backward at this time, i.e. sliding groove 8
It abuts against sliding shoe 4 to slide backward, being equivalent to sliding shoe 4 in this way is that sliding groove 8 provides a reaction force, this reaction
Power enable 5 uniform motion of pawl until locking convex block 6 stretch in lock groove 3, can guarantee that locking convex block 6 protrudes into this way
When in lock groove 3 power of the moment locking of ratchet 1 it is excessive and the case where cause ratchet 1 and strut connection structure to destroy.
Locking convex block 6 has the first locking surface 9, and lock groove 3 has the second locking surface 10, and the first locking surface 9 is resisted against the
Two locking surfaces 10.
First locking surface 9 is resisted against in the second locking surface 10, and the second locking surface 10 can provide locking for the first locking surface 9
Power avoids headrest pawl 5 in vertical state from shaking easily, guarantees the comfort during headrest use.
Sliding groove 8 is arc.
Sliding shoe 4 is square structure and its upside has rounded corner 11.
Because sliding groove 8 is arc, and has rounded corner 11 on sliding shoe 4, after headrest overturning, sliding shoe 4 can be abutted against
Rounded corner 11 and sliding groove 8 in sliding groove 8, in this way when headrest is restored by rollover states to vertical state, on sliding shoe 4
Cambered surface can make pawl 5 rotation it is more smooth, on the one hand enable to the velocity of rotation of pawl 5 more uniform in this way, it is another
Movement when aspect enables to headrest to overturn is more smooth, provides higher comfort for user.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application defined in range.
Claims (4)
1. a kind of locking structure for turnover vehicle headrest characterized by comprising
Ratchet, lower end offer the groove for connecting with strut, and the ratchet upper end offers lock groove, ratchet upper end tool
There is sliding shoe；
Pawl, lower end are equipped with locking convex block, and the locking convex block stretches in the lock groove and is resisted against lock groove side
Face offers on pawl for the through-hole with headrest connection, and pawl lower end offers sliding groove；
When the pawl rotation, the locking convex block can be moved upwards and be unlocked with lock groove；
After headrest overturning, the sliding shoe can be abutted against in the sliding groove.
2. a kind of locking structure for turnover vehicle headrest according to claim 1, which is characterized in that the locking
Convex block has the first locking surface, and the lock groove has the second locking surface, and first locking surface is resisted against second locking
Face.
3. a kind of locking structure for turnover vehicle headrest according to claim 1, which is characterized in that the sliding
Slot is arc.
4. a kind of locking structure for turnover vehicle headrest according to claim 3, which is characterized in that the sliding
Block is square structure and its upside has rounded corner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820606978.6U CN208232889U (en) | 2018-04-25 | 2018-04-25 | A kind of locking structure for turnover vehicle headrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820606978.6U CN208232889U (en) | 2018-04-25 | 2018-04-25 | A kind of locking structure for turnover vehicle headrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208232889U true CN208232889U (en) | 2018-12-14 |
Family
ID=64585601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820606978.6U Active CN208232889U (en) | 2018-04-25 | 2018-04-25 | A kind of locking structure for turnover vehicle headrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208232889U (en) |
-
2018
- 2018-04-25 CN CN201820606978.6U patent/CN208232889U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |