CN211731125U - Locking mechanism for seat backrest and automobile seat comprising same - Google Patents
Locking mechanism for seat backrest and automobile seat comprising same Download PDFInfo
- Publication number
- CN211731125U CN211731125U CN202020007360.5U CN202020007360U CN211731125U CN 211731125 U CN211731125 U CN 211731125U CN 202020007360 U CN202020007360 U CN 202020007360U CN 211731125 U CN211731125 U CN 211731125U
- Authority
- CN
- China
- Prior art keywords
- locking
- unlocking
- hook
- latch
- wall surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Seats For Vehicles (AREA)
Abstract
The utility model provides a locking mechanism for backrest and including its car seat, a locking mechanism for backrest includes fixed plate, unlocks the piece, latch hook and elastic component, the latch hook with the piece of unlocking is installed on the fixed plate rotatoryly, the first end of elastic component is connected on the latch hook slidably, the second end of elastic component is connected on the piece of unlocking slidably; when the locking mechanism is in a locking tolerance state, the outer contour surface of the locking hook and the outer contour surface of the unlocking piece are in mutual contact self-locking, when the locking mechanism is in an unlocking state, the unlocking piece rotates anticlockwise, and the locking hook is driven by the elastic component to rotate anticlockwise for unlocking. The utility model discloses utilize new structure principle, simplify the lock body structure, realize the initiative tolerance of latch hook cam, reduce the power of unblocking and lock and go into the power. The locking force and the unlocking force are not limited by a tolerance mechanism any more, and the locking force and the unlocking force are effectively reduced.
Description
Technical Field
The utility model relates to a car seat field, in particular to a car seat that is used for locking mechanical system of backrest and includes it.
Background
In the prior art, for vehicle seats equipped with a seat back lock, the back can generally be laid down directly after unlocking.
However, in the car seat back lock in the current market, the lock structure generally adopts a structure of two cams, and the cams are self-locked.
The tolerance mechanism is a passive tolerance form of a latch hook cam, one part of the tolerance mechanism is absorbed by a rubber block, and the other part of the tolerance mechanism is a special tolerance mechanism, so that the locking force and the unlocking force are always limited by the tolerance mechanism.
In view of the above, those skilled in the art will appreciate that a latch mechanism for a seat back may be improved to overcome the above-described problems.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that the lock is passive tolerance form for overcoming among the prior art car seat back, and lock income power and unblock power are subject to the defect of tolerance mechanism, provide a car seat that is used for the locking mechanism of backrest and includes it.
The utility model discloses a solve above-mentioned technical problem through following technical scheme:
a locking mechanism for a seat back is characterized by comprising a fixed plate, an unlocking plate, a locking hook and an elastic component, wherein the locking hook and the unlocking plate are rotatably arranged on the fixed plate, a first end of the elastic component is slidably connected to the locking hook, and a second end of the elastic component is slidably connected to the unlocking plate;
when the locking mechanism is in a locking tolerance state, the outer contour surface of the locking hook and the outer contour surface of the unlocking piece are in mutual contact self-locking, when the locking mechanism is in an unlocking state, the unlocking piece rotates anticlockwise, and the locking hook is driven by the elastic component to rotate anticlockwise for unlocking.
According to one embodiment of the present embodiment, the unlocking piece is provided with an unlocking piece sliding groove, the locking hook is provided with a locking hook sliding groove, the first end of the elastic component is connected in the unlocking piece sliding groove, and the second end of the elastic component is connected in the locking hook sliding groove.
According to one embodiment of this embodiment, the resilient member is a torsion spring.
According to one embodiment of the present invention, the unlocking piece is riveted on the fixing plate through a first fixing sleeve, so that the unlocking piece rotates around the first fixing sleeve;
the lock hook is riveted on the fixing plate through a second fixing sleeve, so that the lock hook rotates around the second fixing sleeve.
According to one embodiment of the present invention, the locking hook is provided with a locking groove, one side of the locking groove forms a locking hook portion, and the other side of the locking groove extends outwards along a main body of the locking hook to form a locking portion.
According to an embodiment of the present invention, the outer end portion of the unlocking sheet is provided with a locking notch, the locking portion is matched with the locking notch, and when the locking mechanism is in a locking tolerance state, the locking portion abuts against the locking notch.
According to one embodiment of the present embodiment, the width of the locking groove is greater than the latch width of the vehicle body.
According to one embodiment of the present embodiment, the locking groove includes a first inner wall surface and a second inner wall surface, the second inner wall surface being in contact with the latch at all times when the locking mechanism is in a locking process;
when the locking mechanism is in a locking state, the first inner wall surface is always in contact with the lock bolt for locking, and a gap exists between the lock bolt and the second inner wall surface.
According to an embodiment of the present invention, the first inner wall surface is an inner wall surface of the lock hook portion, and the second inner wall surface is an inner wall surface of the lock portion.
The utility model also provides a car seat, its characterized in that, car seat include as above a locking mechanism for backrest.
The utility model discloses an actively advance the effect and lie in:
the utility model is used for locking mechanism of seat back reaches car seat including it utilizes new structure principle, simplifies the lock body structure, realizes the active tolerance of latch hook cam, reduces the unlocking force and locks the income power. The locking mechanism for the seat backrest changes the motion trend of the cam structure at different moments through the change of the stress position, and further realizes the active tolerance of the cam structure, so that an additional tolerance mechanism is not needed, the locking force and the unlocking force are not limited by the tolerance mechanism, and the locking force and the unlocking force are effectively reduced.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which like reference numerals refer to like features throughout, and in which:
fig. 1 is an exploded view of the locking mechanism for a seat back of the present invention.
Fig. 2 is the structural schematic diagram of the locking mechanism for the seat back in the locking state.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is a force-bearing schematic diagram of the locking mechanism for the seat back in a locked state.
Fig. 5 is a force-receiving schematic diagram of the locking mechanism for the seat back in the unlocking process.
Fig. 6 is a schematic structural view of the locking mechanism for the seat back of the present invention in a completely unlocked state.
Fig. 7 is a force-receiving schematic diagram of the locking mechanism for the seat back in the locking process.
Fig. 8 is an enlarged view of a portion B in fig. 7.
Fig. 9 is a force-receiving schematic diagram of the locking mechanism for the seat back of the present invention returning to the locked state.
Fig. 10 is an enlarged view of a portion C in fig. 9.
[ reference numerals ]
Unlocking sheet 20
Latch hook 30
Unlocking sheet sliding groove 21
Latch hook runner 31
First mounting hole 11
Locking notch 23
Lock hook 34
Locking part 35
Latch 70
First inner wall surface 331
Second inner wall surface 332
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
Further, although the terms used in the present invention are selected from publicly known and used terms, some of the terms mentioned in the description of the present invention may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein.
Furthermore, it is required that the present invention is understood, not simply by the actual terms used but by the meaning of each term lying within.
Fig. 1 is an exploded view of the locking mechanism for a seat back of the present invention.
As shown in fig. 1, the present invention discloses a locking mechanism for a seat back, which comprises a fixing plate 10, an unlocking plate 20, a locking hook 30 and an elastic member 40, wherein the locking hook 30 and the unlocking plate 20 are rotatably mounted on the fixing plate 10, a first end 41 of the elastic member 40 is slidably connected to the locking hook 30, and a second end 42 of the elastic member 40 is slidably connected to the unlocking plate 20. When the locking mechanism is in a locking tolerance state, the outer contour surface of the locking hook 30 and the outer contour surface of the unlocking piece 20 are in mutual contact and self-lock, and when the locking mechanism is in an unlocking state, the unlocking piece 20 rotates anticlockwise, and the locking hook 30 is driven by the elastic component 40 to rotate anticlockwise for unlocking.
Preferably, the unlocking piece 20 is provided with an unlocking piece sliding groove 21, the locking hook 30 is provided with a locking hook sliding groove 31, the first end 41 of the elastic component 40 is connected in the unlocking piece sliding groove 21, and the second end 42 is connected in the locking hook sliding groove 31. The resilient member 40 is preferably a torsion spring herein. First end 41 of resilient member 40 slides within unlocking tab slot 21 and second end 42 of resilient member 40 slides within locking hook slot 31.
Further, the unlocking piece 20 is riveted to the fixing plate 10 by the first fixing sleeve 50, so that the unlocking piece 20 rotates around the first fixing sleeve 50. The latch hook 30 is riveted to the fixing plate 10 by a second fixing sleeve 60 such that the latch hook 30 rotates around the second fixing sleeve 60.
Specifically, the fixed plate 10 is provided with a first mounting hole 11 and a second mounting hole 12, the unlocking piece 20 is provided with a third mounting hole 22, the locking hook 30 is provided with a fourth mounting hole 32, and the first fixing sleeve 50 is used for mounting the unlocking piece 20 on the fixed plate 10 through the correspondence between the third mounting hole 22 and the first mounting hole 11. The second fixing sleeve 60 is used to fix the locking hook 30 to the fixing plate 10 through the fourth mounting hole 32 and the second mounting hole 12.
More preferably, a locking groove 33 is formed on the locking hook 30, and one side of the locking groove 33 forms a locking hook portion 34 and the other side extends outward along the main body of the locking hook 30 to form a locking portion 35. The outer end of the unlocking sheet 20 is provided with a locking notch 23, the locking part 35 is matched with the locking notch 23, and when the locking mechanism is in a locking tolerance state, the locking part 35 is abutted against the locking notch 23.
In the present embodiment, the width of the locking groove 33 is larger than the width of the latch 70 of the vehicle body. The locking groove 33 includes a first inner wall surface 331 and a second inner wall surface 332, and the second inner wall surface 332 is always in contact with the latch 70 when the locking mechanism is in the locking process. When the lock mechanism is in the locked state, the first inner wall surface 331 is always in contact with the latch 70 to be locked, and a gap is formed between the latch 70 and the second inner wall surface 332. Here, the first inner wall surface 331 is an inner wall surface of the latch hook portion 34, and the second inner wall surface 332 is an inner wall surface of the lock portion 35.
Fig. 2 is the structural schematic diagram of the locking mechanism for the seat back in the locking state. Fig. 3 is an enlarged view of a portion a in fig. 2. Fig. 4 is a force-bearing schematic diagram of the locking mechanism for the seat back in a locked state.
As shown in fig. 2 to 4, according to the above-described structure, when the locking mechanism for a seat back is in the locking tolerance state, in this state, the first inner wall surface 331 of the locking hook 30 is locked in contact with the outer shape of the latch 70 fixed to the vehicle body, and the locking hook 30 and the outer shape of the unlocking piece 20 are self-locked in contact with each other, so that the latch 70 cannot be disengaged, and the structural locking is realized.
The structural stress in this state is as shown in fig. 4, the elastic member 40 always provides driving forces F1 and F2 for the locking hook 30 and the unlocking piece 20, respectively, and under the action of the force F1, the locking hook 30 has a clockwise movement tendency. Under the action of the force F2, the unlocking sheet 20 has a clockwise movement tendency, so that the first inner wall surface 311 of the locking hook 30 is always kept in contact with the locking bolt 70 for locking.
Fig. 5 is a force-receiving schematic diagram of the locking mechanism for the seat back in the unlocking process. Fig. 6 is a schematic structural view of the locking mechanism for the seat back of the present invention in a completely unlocked state.
As shown in fig. 5 and 6, when the locking mechanism for the seat back is in the unlocking process, the elastic member 40 is lifted along the unlocking piece 20 by the counterclockwise rotation of the unlocking piece 20, the second end 42 of the elastic member 40 slides upwards along the locking hook sliding groove 31, the relative position between the second end 42 of the elastic member 40 and the locking hook 30 changes, and at this time, under the action of the force F1, the locking hook 30 has a movement tendency of counterclockwise rotation, so that the locking bolt 70 is disengaged, and finally the locking hook 30 moves to the complete unlocking state of fig. 6.
Fig. 7 is a force-receiving schematic diagram of the locking mechanism for the seat back in the locking process. Fig. 8 is an enlarged view of a portion B in fig. 7. Fig. 9 is a force-receiving schematic diagram of the locking mechanism for the seat back of the present invention returning to the locked state. Fig. 10 is an enlarged view of a portion C in fig. 9.
As shown in fig. 7 to 10, when the locking mechanism for the seat back is in a locking process, the latch 70 is always in contact with the second inner wall surface 332 of the latch hook 30, and under the interaction with the latch 70, the latch hook 30 moves clockwise from the state of fig. 6 to the state of fig. 7, and the unlocking piece 20 moves clockwise to the state of fig. 9 under the action of the force F2, so that the locking of the locking mechanism is realized.
After the latch mechanism for the seat back is restored to the latched state shown in fig. 9, at which the latch 70 is in contact with the second inner wall surface 332 of the latch hook 30, there is a gap between the latch 70 and the first inner wall surface 332 of the latch hook 30. Under the action of the force F1, the locking hook 30 continues to rotate clockwise, and at the same time, the unlocking piece 20 continues to rotate clockwise under the action of the force F2, so that the locking hook 30 and the unlocking piece 20 are always in contact and locked until the locking hook 30 moves to the state shown in fig. 2. First interior wall surface 332 of shackle 30 contacts latch 70 to complete the mechanism tolerance action.
The utility model also provides a car seat, its characterized in that, car seat include as above a locking mechanism for backrest.
To sum up, the utility model discloses a car seat for locking mechanism of backrest and including it utilizes new structure principle, simplifies the lock body structure, realizes the initiative tolerance of latch hook cam, reduces the unlocking force and locks the income power. The locking mechanism for the seat backrest changes the motion trend of the cam structure at different moments through the change of the stress position, and further realizes the active tolerance of the cam structure, so that an additional tolerance mechanism is not needed, the locking force and the unlocking force are not limited by the tolerance mechanism, and the locking force and the unlocking force are effectively reduced.
Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are all within the scope of the invention.
Claims (10)
1. A locking mechanism for a seat back is characterized by comprising a fixed plate, an unlocking plate, a locking hook and an elastic component, wherein the locking hook and the unlocking plate are rotatably arranged on the fixed plate, a first end of the elastic component is slidably connected to the locking hook, and a second end of the elastic component is slidably connected to the unlocking plate;
when the locking mechanism is in a locking tolerance state, the outer contour surface of the locking hook and the outer contour surface of the unlocking piece are in mutual contact self-locking, when the locking mechanism is in an unlocking state, the unlocking piece rotates anticlockwise, and the locking hook is driven by the elastic component to rotate anticlockwise for unlocking.
2. The locking mechanism for a seatback as claimed in claim 1, wherein said unlocking piece has an unlocking piece sliding groove, said locking hook has a locking hook sliding groove, said elastic member has a first end connected to said unlocking piece sliding groove and a second end connected to said locking hook sliding groove.
3. The latch mechanism for a seat back of claim 2, wherein the resilient member is a torsion spring.
4. The locking mechanism for a seatback of claim 1, wherein said unlocking tab is riveted to said fixed plate by a first fixed sleeve such that said unlocking tab rotates about said first fixed sleeve;
the lock hook is riveted on the fixing plate through a second fixing sleeve, so that the lock hook rotates around the second fixing sleeve.
5. The latch mechanism for a seat back of claim 1, wherein the latch hook is provided with a latch slot, one side of the latch slot forming a hook portion and the other side extending outwardly along a body of the latch hook forming a latch portion.
6. The locking mechanism for a seatback as claimed in claim 5, wherein said unlocking plate is provided at its outer end portion with a locking notch, said locking portion being adapted to fit into said locking notch, said locking portion being urged against said locking notch when said locking mechanism is in a locking tolerance state.
7. The latch mechanism for a seat back of claim 5, wherein the width of the latch slot is greater than the latch width of the vehicle body.
8. The latch mechanism for a seat back of claim 7, wherein the latch slot includes a first interior wall surface and a second interior wall surface, the second interior wall surface always being in contact with the latch when the latch mechanism is in the latching process;
when the locking mechanism is in a locking state, the first inner wall surface is always in contact with the lock bolt for locking, and a gap exists between the lock bolt and the second inner wall surface.
9. The lock mechanism for a seatback as claimed in claim 8, wherein the first inner wall surface is an inner wall surface of the lock hook portion, and the second inner wall surface is an inner wall surface of the lock portion.
10. A car seat characterized in that it comprises a locking mechanism for a seat back according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020007360.5U CN211731125U (en) | 2020-01-02 | 2020-01-02 | Locking mechanism for seat backrest and automobile seat comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020007360.5U CN211731125U (en) | 2020-01-02 | 2020-01-02 | Locking mechanism for seat backrest and automobile seat comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211731125U true CN211731125U (en) | 2020-10-23 |
Family
ID=72868561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020007360.5U Active CN211731125U (en) | 2020-01-02 | 2020-01-02 | Locking mechanism for seat backrest and automobile seat comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211731125U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114987300A (en) * | 2022-06-24 | 2022-09-02 | 小米汽车科技有限公司 | Vehicle seat back lock, vehicle seat and vehicle |
-
2020
- 2020-01-02 CN CN202020007360.5U patent/CN211731125U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114987300A (en) * | 2022-06-24 | 2022-09-02 | 小米汽车科技有限公司 | Vehicle seat back lock, vehicle seat and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101636296B (en) | Lock device | |
| JP5597639B2 (en) | Lock elements for vehicle seats | |
| US4711493A (en) | Mounting or locking assembly, especially for use with pivotable motor vehicle seats | |
| US9205763B2 (en) | Seat-track assembly | |
| JP5865521B2 (en) | Lock unit for vehicle seat | |
| US7517021B2 (en) | Reclining mechanism for vehicle seats | |
| US20090056393A1 (en) | Lock device | |
| JP2012505786A5 (en) | ||
| CN104661867B (en) | Vehicle latch device | |
| CN1984795A (en) | Connection latch assembly of vehicle seat | |
| CN210122045U (en) | Door assembly and vehicle | |
| CN211731125U (en) | Locking mechanism for seat backrest and automobile seat comprising same | |
| US11453313B2 (en) | Memory module and seat mounting structure with easy entry module | |
| US20170313210A1 (en) | Locking mechanism for a backrest of a vehicle | |
| KR101417066B1 (en) | Anti-Loosening Structure of Seat latch of Vehicle | |
| US20170313211A1 (en) | Locking mechanism for a backrest of a vehicle | |
| KR102430415B1 (en) | car lock | |
| US20200378163A1 (en) | Pivoted lockable latch actuator | |
| JP2002283888A (en) | Slide device for seat | |
| JP4325794B2 (en) | Vehicle seat locking device | |
| CN211844159U (en) | Automobile seat backrest lock and automobile seat comprising same | |
| US9260038B2 (en) | Floor lock for a motor vehicle seat | |
| KR100475885B1 (en) | Tailgate striker structure combined guide bumper | |
| JP3588853B2 (en) | Automotive seat lock device | |
| CN112644348A (en) | Automobile seat backrest lock and automobile seat comprising same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |