CN212243070U - Support arrangement for car headrest - Google Patents
Support arrangement for car headrest Download PDFInfo
- Publication number
- CN212243070U CN212243070U CN202020805515.XU CN202020805515U CN212243070U CN 212243070 U CN212243070 U CN 212243070U CN 202020805515 U CN202020805515 U CN 202020805515U CN 212243070 U CN212243070 U CN 212243070U
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- roller
- link
- locking
- frame
- torsional spring
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Abstract
The utility model provides a strutting arrangement of car headrest, including link and pillow frame, the pillow frame sets up on the link, be provided with locking mechanical system and pillow frame canceling release mechanical system on the link, be provided with drive mechanism on the link, the canceling release mechanical system of gyro wheel and gyro wheel, the stay cord is convoluteed on the circumference of gyro wheel, the one end of stay cord is connected with the gyro wheel, the link is stretched out to the other end of stay cord, drive mechanism's one end and gyro wheel are linked mutually, drive mechanism's the other end and locking mechanical system are linked mutually, when the stay cord one end that the link was stretched out in the pulling, stay cord pulling gyro wheel is rotatory, the gyro wheel drives locking mechanical system unblock pillow frame through drive mechanism, when no pulling force on the stay cord, the canceling release mechanical system drive gyro wheel. The utility model has the advantages that: the stay cord is prevented from being directly connected with the headrest rotation triggering structure, so that the stress of the joint of the stay cord and the stay cord tension transmission structure is uniform, the stay cord is not easy to damage, the service life of the stay cord tension transmission structure is long, and the service life of the stay cord tension transmission structure is prolonged.
Description
Technical Field
The utility model relates to a headrest preparation technical field especially indicates a support arrangement of car headrest.
Background
A prior chinese patent with patent number CN200580007454.0 entitled "foldable headrest" discloses a foldable headrest having two support members disposed on a bracket. The latch is integrated with at least one support. The latch abuts the stop pin to prevent rotation of the support in the first direction. The latch abuts the rotating cam to prevent movement of the support in the second direction. By rotating the cam, the support can be folded. A support comprising a metal base with an overmolded plastic geometry to receive a fitting disposed within the headrest bun. The geometry of the metal base and the overmolded plastic geometry reduces or even eliminates the slits typically required for such folding headrests. The folding capability can result in greater rear viewing capability and assist in movement of the seat. However, the foldable headrest needs a wire rope to directly pull the rotating cam, the joint of the wire rope and the rotating cam needs to bear a large pulling force, the cable nail is easily damaged, the service life is short, and the service life of the foldable headrest is further affected, so that the structure of the device needs to be further improved.
Disclosure of Invention
The utility model aims to solve the technical problem that a stay cord can avoid rotating with the headrest and trigger the structure and directly be connected to above-mentioned prior art current situation and provide one kind, and the stay cord is even with stay cord pulling force transmission structure's junction atress, and is not fragile, long service life's automotive headrest's strutting arrangement.
The utility model provides a technical scheme that above-mentioned technical problem adopted does: this strutting arrangement of car headrest, including installing the link on car seat and the pillow frame that is used for fixed car headrest, the pillow frame can set up on the link with rotating be provided with on the link and can with pillow frame locking position on the link and can drive the pillow frame canceling release mechanical system that pillow frame resets after the locking mechanical system of pillow frame and pillow frame unblock when the stay cord pulling, its characterized in that: the connecting frame is provided with a transmission mechanism, a roller capable of rotating relative to the connecting frame and a reset mechanism of the roller, the pull rope is wound on the circumference of the roller, one end of the pull rope is connected with the roller, the other end of the pull rope extends out of the connecting frame, one end of the transmission mechanism is linked with the roller, the other end of the transmission mechanism is linked with the locking mechanism, when one end of the pull rope extending out of the connecting frame is pulled, the pull rope pulls the roller to rotate, the roller drives the locking mechanism to unlock the pillow frame through the transmission mechanism, and when no pulling force exists on the pull rope, the reset mechanism of the roller drives the roller to rotate reversely to reset.
As the improvement, the gyro wheel can be connected on the lateral wall of link through first pivot with rotating, the canceling release mechanical system of gyro wheel is first torsional spring, first torsional spring cover is put in first pivot, the one end of first torsional spring is connected with the gyro wheel, the other end of first torsional spring is connected with the link be provided with spacing convex part on the lateral wall of gyro wheel, it touches spacing convex part and prevents the gyro wheel continuation pivoted link arch to be provided with on the corresponding lateral wall of link to push up.
The improved structure is characterized in that the other side face of the roller opposite to the limiting convex part can be preferably provided with a containing groove, the first torsion spring is sleeved on a shaft body of the first rotating shaft located in the containing groove, one end of the first torsion spring is inserted into a connecting hole in the bottom face of the containing groove, and the other end of the first torsion spring is hooked and sleeved on the connecting frame.
As an improvement, a guide groove may be preferably provided on the circumference of the roller, a fixing pin passing through the guide groove is axially inserted into the roller, one end of the pull rope is fixed on the fixing pin, and the other end of the pull rope passes through the guide groove and extends out of the connecting frame.
As an improvement, the transmission mechanism comprises a swing rod, a reset mechanism of the swing rod and a transmission member, the middle part of the swing rod is rotatably connected to the connecting frame, a limiting notch is radially arranged on the side wall of the roller, one end of the swing rod is abutted against the limiting notch, the other end of the swing rod is movably connected with one end of the transmission member, the other end of the transmission member is movably connected with the locking mechanism, when the roller is pulled by the pull rope to rotate, the limiting notch pushes the swing rod to swing, the swing rod drives the locking mechanism to unlock through the transmission member, and when no pull force is applied to the pull rope, the reset mechanism of the swing rod drives the swing rod to reset.
The improved structure is characterized in that the middle of the swinging rod can be preferably connected to the front side wall of the connecting frame through a second rotating shaft in a rotatable manner, the resetting mechanism of the swinging rod is a second torsion spring, one end of the second torsion spring is fixed to the connecting frame, and the other end of the second torsion spring is buckled on the swinging rod.
In a further improvement, the middle part of the swing rod connected with the second rotating shaft is positioned on the left side of the gravity center of the swing rod, the roller is positioned on the right side of the second rotating shaft, and the locking mechanism is positioned on the left side of the second rotating shaft.
As the improvement, but pillow frame's axis of rotation preferred ability rotationally connects on the link, locking mechanical system includes the locking piece, locking wheel and reset torsion spring, the locking piece is connected on the lateral wall of link through the third pivot, the reset torsion spring cover is put in the third pivot, reset torsion spring's one end is connected with the link, reset torsion spring's the other end is connected on the locking piece, and the rotation end of locking piece is connected with drive mechanism, the locking wheel is connected in the axis of rotation with one heart, be provided with spacing arch on the locking wheel be provided with on the spacing arch can with the rotation end looks block of locking piece and the breach portion of locking pillow frame.
The locking wheel is characterized in that the locking wheel is provided with a limiting protrusion, the limiting protrusion is arranged on the limiting protrusion, and the limiting protrusion is arranged on the limiting protrusion.
The pillow frame is characterized in that the pillow frame reset mechanism is a third torsion spring sleeved on the rotating shaft, one end of the third torsion spring is connected to a limiting wheel body of the rotating shaft, the other end of the third torsion spring is connected to the connecting frame, and when the pillow frame is driven to reset by the third torsion spring after the pillow frame is unlocked, the limiting wheel body is pressed against the connecting frame to prevent the pillow frame from continuing to rotate.
Compared with the prior art, the utility model has the advantages of: the transmission mechanism is driven by the roller, and then the locking mechanism is driven by the transmission mechanism, so that the stay cord is prevented from being directly connected to the locking block of the locking mechanism and wound on the circumference of the roller, the pulling force exerted on the stay cord is uniformly distributed and acts on the roller, the point connection of the stay cord and the unlocking mechanism in the prior art is changed into surface connection in the structure, the stay cord and the headrest rotation triggering structure are prevented from being directly connected, the connection part of the stay cord and the stay cord pulling force transmission structure is uniformly stressed and is not easy to damage, the service life is long, and the service life of the support device is prolonged; in addition, one end of the pull rope stretches out of the connecting frame after being wound, so that the moment of the pulling force applying end is increased, labor is saved when the pull rope is pulled to unlock, and the support device is convenient to unlock.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention applied to a headrest of an automobile;
FIG. 2 is an exploded view of the structure of FIG. 1;
FIG. 3 is a perspective view of the embodiment of the present invention with a portion of the connecting frame cut away;
FIG. 4 is a perspective view of the embodiment of the present invention after a portion of the connecting frame is cut away at another angle;
FIG. 5 is an exploded view of the structure of FIG. 4;
FIG. 6 is a perspective view of the embodiment of the present invention after a portion of the connecting frame is cut away at a third angle; .
Fig. 7 is an exploded view of an embodiment of the present invention;
FIG. 8 is a further exploded view of FIG. 7;
fig. 9 is a top view of an embodiment of the invention;
FIG. 10 is a cross-sectional view taken along line A-A of FIG. 9;
FIG. 11 is a cross-sectional view taken along line B-B of FIG. 9;
FIG. 12 is a perspective view of the pillow block of FIG. 9 after rotation;
FIG. 13 is a bottom view of FIG. 12;
FIG. 14 is a cross-sectional view taken along line C-C of FIG. 13;
fig. 15 is a cross-sectional view taken along line D-D of fig. 13.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
As shown in fig. 1 to 15, the supporting device for a headrest of an automobile of the present embodiment includes a connecting frame 1 capable of being mounted on an automobile seat and a headrest frame 3 for fixing an automobile headrest 2, the headrest frame 3 is rotatably provided on the connecting frame 1, a locking mechanism capable of locking and positioning the headrest frame 3 on the connecting frame 1 and unlocking the headrest frame 3 when a pulling rope 4 is pulled and a headrest frame returning mechanism for returning the headrest frame 3 after the headrest frame 3 is unlocked are provided on the connecting frame 1, a transmission mechanism, a roller 5 capable of rotating relative to the connecting frame 1 and a returning mechanism of the roller 5 are provided on the connecting frame 1, the pulling rope 4 is wound around the circumference of the roller 5, so that one end of the pulling rope 4 is connected to the roller 5, the other end of the pulling rope 4 extends out of the connecting frame 1, one end of the transmission mechanism is linked to the roller 5, the other end of the transmission mechanism is linked to the locking mechanism, when one end of the pulling rope 4 extending out of the connecting, the pull rope 4 pulls the roller 5 to rotate, the roller 5 drives the locking mechanism to unlock the pillow frame 3 through the transmission mechanism, and when no pull force exists on the pull rope 4, the reset mechanism of the roller 5 drives the roller 5 to rotate reversely to reset. The connecting frame 1 is connected to the fixing plate 10 through screws, and the fixing plate 10 is embedded and fixed on the car seat.
The roller 5 is rotatably connected to a side wall of the connecting frame 1 through a first rotating shaft 51, the reset mechanism of the roller 5 is a first torsion spring 52, the first torsion spring 52 is sleeved on the first rotating shaft 51, one end of the first torsion spring 52 is connected with the roller 5, the other end of the first torsion spring 52 is connected with the connecting frame 1, a limit convex part 53 is arranged on the side wall of the roller 5, and a connecting frame protrusion 11 which can push against the limit convex part 53 to prevent the roller 5 from continuously rotating is arranged on the corresponding side wall of the connecting frame 1. A receiving groove 54 is formed on the other side surface of the roller 5 opposite to the limit protrusion 53, the first torsion spring 52 is sleeved on the shaft body of the first rotating shaft 51 positioned in the receiving groove 54, one end of the first torsion spring 52 is inserted into a connecting hole on the bottom surface of the receiving groove 54, and the other end of the first torsion spring 52 is hooked on the third rotating shaft 73 of the connecting frame 1. A guide groove 55 is provided on the circumference of the roller 5, a fixing pin 56 is axially inserted into the roller 5 and passes through the guide groove 55, one end of the pull rope 4 is fixed to the fixing pin 56, and the other end of the pull rope 4 passes through the guide groove 55 and extends out of the link 1. A fixing groove 58 connected to the fixing pin 56 is provided on an inner wall of the receiving groove 54 of the roller 5, and the fixing pin 56 is inserted and fixed in the fixing groove 58.
Drive mechanism includes swinging arms 6, the canceling release mechanical system and the driving medium 61 of swinging arms 6, the middle part of swinging arms 6 can be connected on link 1 with rotating, radially be provided with spacing breach 57 on the lateral wall of gyro wheel 5, the one end top of swinging arms 6 touches on spacing breach 57, the other end of swinging arms 6 is connected with the one end activity of driving medium 61, the other end and the locking mechanical system activity of driving medium 61 are connected, when 4 pulling gyro wheels 5 of stay cord rotate, spacing breach 57 promotes the swing arms 6 swing, swinging arms 6 drives the locking mechanical system unblock through driving medium 61, when no pulling force on stay cord 4, the canceling release mechanical system drive swinging arms 6 of swinging arms 6 reset. The middle part of the swing rod 6 is rotatably connected to the front side wall of the connecting frame 1 through a second rotating shaft 62, the reset mechanism of the swing rod 6 is a second torsion spring 63, one end of the second torsion spring 63 is fixed on the connecting frame 1, and the other end of the second torsion spring 63 is buckled on the swing rod 6. The transmission part 61 is composed of an upper connecting ring, a lower connecting ring and a connecting rod, the axial lead included angle between the upper connecting ring and the lower connecting ring is 90 degrees, the upper end of the connecting rod is connected with the upper connecting ring, the lower end of the connecting rod is connected with the lower connecting ring, the upper connecting ring is connected to the locking mechanism through a bolt, and the lower connecting ring is connected to the end part of the swinging rod 6 through another bolt. The middle of the swing lever 6 connected to the second rotating shaft 62 is located on the left side of the center of gravity of the swing lever 6, the roller 5 is located on the right side of the second rotating shaft 62, and the locking mechanism is located on the left side of the second rotating shaft 62.
The rotating shaft 31 of the pillow frame 3 can be rotatably connected to the connecting frame 1, the locking mechanism comprises a locking block 7, a locking wheel 71 and a reset torsion spring 72, the locking block 7 is connected to the side wall of the connecting frame 1 through a third rotating shaft 73, the reset torsion spring 72 is sleeved on the third rotating shaft 73, one end of the reset torsion spring 72 is connected with the connecting frame 1, the other end of the reset torsion spring 72 is connected to the locking block 7, the rotating end of the locking block 7 is connected with the transmission mechanism, the locking wheel 71 is concentrically connected to the rotating shaft 31, a limiting protrusion 711 is arranged on the locking wheel 71, and a notch portion 74 which can be clamped with the rotating end of the locking block 7 to lock the pillow frame 3 is arranged on the limiting protrusion 711. The top surface of the rotating end of the locking block 7 is provided with an arc surface 75, and the bottom surface of the limiting bulge of the locking wheel 71 is an arc surface 76 which can be matched with the arc surface 75 of the rotating end. The pillow frame reset mechanism is a third torsion spring 32 sleeved on the rotating shaft 31, one end of the third torsion spring 32 is connected to a limiting wheel body 33 of the rotating shaft 31, the other end of the third torsion spring 32 is connected to the connecting frame 1, and when the pillow frame 3 is reset by the third torsion spring 32 after the pillow frame 3 is unlocked, the limiting wheel body 33 is pressed against the connecting frame 1 to prevent the pillow frame 3 from rotating continuously. The upper part of the connecting frame 1 is provided with a stop shaft 13, and the limiting wheel body 33 and the limiting bulge 711 can be pressed against the stop shaft 13 so as to prevent the pillow frame 3 from further rotating. The lock wheel 71 and the stopper wheel body 33 are connected to the rotating shaft 31 by welding. A link opening may be formed on the side wall of the link 1 corresponding to the locking wheel 71, so that the locking wheel 71 does not touch the side wall of the link 1 during the rotation when the rotation shaft 31 is installed near the side wall of the link 1.
The working principle is as follows: after the pull rope is pulled, the roller rotates, so that the roller drives the swinging rod to swing, the locking block is driven to rotate, the locking block is separated from the locking wheel, the pillow frame rotates under the action of the third torsion spring, and the folding of the automobile headrest is realized. When the pillow frame is pushed by hand to rotate reversely until the pillow rod faces upwards, the locking wheel is buckled with the locking block again, and the pillow frame is locked.
Claims (10)
1. The utility model provides a strutting arrangement of car headrest, is including installing link (1) on car seat and pillow frame (3) that are used for fixed car headrest (2), pillow frame (3) can set up on link (1) with rotating be provided with on link (1) can with pillow frame (3) locking positioning on link (1) and can unblock the locking mechanical system of pillow frame (3) and pillow frame (3) unblock back drive pillow frame (3) the pillow frame canceling release mechanical system who resets when stay cord (4) pulling, its characterized in that: the connecting frame (1) is provided with a transmission mechanism, a roller (5) capable of rotating relative to the connecting frame (1) and a reset mechanism of the roller (5), the pull rope (4) is wound on the circumference of the roller (5), so one end of the pull rope (4) is connected with the roller (5), the other end of the pull rope (4) extends out of the connecting frame (1), one end of the transmission mechanism is linked with the roller (5), the other end of the transmission mechanism is linked with a locking mechanism, when one end of the pull rope (4) extending out of the connecting frame (1) is pulled, the pull rope (4) pulls the roller (5) to rotate, the roller (5) drives the locking mechanism to unlock the pillow frame (3) through the transmission mechanism, and when no pulling force exists on the pull rope (4), the reset mechanism of the roller (5) drives the roller (5) to reversely rotate and reset.
2. The support device of claim 1, wherein: gyro wheel (5) can be connected on the lateral wall of link (1) rotatably through first pivot (51), the canceling release mechanical system of gyro wheel (5) is first torsional spring (52), first torsional spring (52) cover is put on first pivot (51), the one end of first torsional spring (52) is connected with gyro wheel (5), the other end of first torsional spring (52) is connected with link (1) be provided with spacing convex part (53) on the lateral wall of gyro wheel (5), be provided with on the corresponding lateral wall of link (1) and can push up and touch spacing convex part (53) and prevent gyro wheel (5) to continue pivoted link arch (11).
3. The support device of claim 2, wherein: be provided with holding tank (54) on the another side of gyro wheel (5) relative with spacing convex part (53), first torsional spring (52) cover is put on the axis body of first pivot (51) that is arranged in holding tank (54), the one end of first torsional spring (52) is pegged graft in the connecting hole of holding tank (54) bottom surface, the other end of first torsional spring (52) colludes the cover on link (1).
4. The support device of any one of claims 1 to 3, wherein: the circumference of the roller (5) is provided with a guide groove (55), a fixing pin (56) penetrating through the guide groove (55) is axially inserted into the roller (5), one end of the pull rope (4) is fixed on the fixing pin (56), and the other end of the pull rope (4) penetrates through the guide groove (55) and extends out of the connecting frame (1).
5. The support device of any one of claims 1 to 3, wherein: the transmission mechanism comprises a swinging rod (6), a reset mechanism of the swinging rod (6) and a transmission piece (61), the middle part of the swing rod (6) can be rotatably connected to the connecting frame (1), a limiting notch (57) is radially arranged on the side wall of the roller (5), one end of the swinging rod (6) is pressed against the limiting notch (57), the other end of the swinging rod (6) is movably connected with one end of a transmission piece (61), the other end of the transmission piece (61) is movably connected with a locking mechanism, when the pull rope (4) pulls the roller (5) to rotate, the limit notch (57) pushes the swing rod (6) to swing, the swing rod (6) drives the locking mechanism to unlock through the transmission piece (61), when no pulling force is applied to the pull rope (4), the reset mechanism of the swing rod (6) drives the swing rod (6) to reset.
6. The support device of claim 5, wherein: the middle part of swinging arms (6) can be rotatably connected on the front side wall of connecting frame (1) through second pivot (62), the canceling release mechanical system of swinging arms (6) is second torsional spring (63), the one end of second torsional spring (63) is fixed on connecting frame (1), the other end buckle of second torsional spring (63) is on swinging arms (6).
7. The support device of claim 5, wherein: the middle part of the swing rod (6) connected with the second rotating shaft (62) is positioned on the left side of the gravity center of the swing rod (6), the roller (5) is positioned on the right side of the second rotating shaft (62), and the locking mechanism is positioned on the left side of the second rotating shaft (62).
8. The support device of any one of claims 1 to 3, wherein: the rotating shaft (31) of the pillow frame (3) can be rotatably connected to the connecting frame (1), the locking mechanism comprises a locking block (7), a locking wheel (71) and a reset torsion spring (72), the locking block (7) is connected to the side wall of the connecting frame (1) through a third rotating shaft (73), the reset torsion spring (72) is sleeved on the third rotating shaft (73), one end of the reset torsion spring (72) is connected with the connecting frame (1), the other end of the reset torsion spring (72) is connected with the locking block (7), the rotating end of the locking block (7) is connected with the transmission mechanism, the locking wheel (71) is concentrically connected on the rotating shaft (31), a limiting bulge (711) is arranged on the locking wheel (71), the limit projection (711) is provided with a notch part (74) which can be engaged with the rotating end of the locking block (7) to lock the pillow frame (3).
9. The support device of claim 8, wherein: the top surface of the rotating end of the locking block (7) is provided with an arc surface (75), and the bottom surface of the limiting bulge of the locking wheel (71) is an arc surface (76) which can be matched with the arc surface (75) of the rotating end.
10. The support device of claim 8, wherein: pillow frame canceling release mechanical system is third torsional spring (32) of cover on axis of rotation (31), the one end of third torsional spring (32) is connected on the spacing wheel body (33) of axis of rotation (31), the other end of third torsional spring (32) is connected on link (1), when pillow frame (3) unblock back third torsional spring (32) drive pillow frame (3) reset, spacing wheel body (33) top touches and prevents pillow frame (3) to continue to rotate on link (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020805515.XU CN212243070U (en) | 2020-05-14 | 2020-05-14 | Support arrangement for car headrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020805515.XU CN212243070U (en) | 2020-05-14 | 2020-05-14 | Support arrangement for car headrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212243070U true CN212243070U (en) | 2020-12-29 |
Family
ID=74000440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020805515.XU Active CN212243070U (en) | 2020-05-14 | 2020-05-14 | Support arrangement for car headrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212243070U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111452690A (en) * | 2020-05-14 | 2020-07-28 | 舟山市银岱汽车零部件有限公司 | Support arrangement for car headrest |
-
2020
- 2020-05-14 CN CN202020805515.XU patent/CN212243070U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111452690A (en) * | 2020-05-14 | 2020-07-28 | 舟山市银岱汽车零部件有限公司 | Support arrangement for car headrest |
| CN111452690B (en) * | 2020-05-14 | 2023-09-01 | 舟山市银岱汽车零部件有限公司 | Supporting device of automobile headrest |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210420 Address after: No. 5651, Hunan Road, hangtou Town, Pudong New Area, Shanghai, 201317 Patentee after: Shanghai Daimei Auto Parts Co.,Ltd. Address before: 316200 Zhejiang province Zhoushan city Daishan County East Sand Town Road 174 Patentee before: ZHOUSHAN YINDAI AUTO PARTS Co.,Ltd. |
|
| TR01 | Transfer of patent right |