CN107284303B - Automobile seat headrest with front and back telescopic function - Google Patents
Automobile seat headrest with front and back telescopic function Download PDFInfo
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- CN107284303B CN107284303B CN201710385909.7A CN201710385909A CN107284303B CN 107284303 B CN107284303 B CN 107284303B CN 201710385909 A CN201710385909 A CN 201710385909A CN 107284303 B CN107284303 B CN 107284303B
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- headrest
- screw rod
- cover
- base
- arm
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The invention discloses an automobile seat headrest with a front-back telescopic function, which comprises a headrest rear cover, a headrest front cover, a front-back telescopic mechanism and a headrest rod, wherein the front-back telescopic mechanism comprises a fixed block, a base, a screw rod, a driving piece, two push blocks, two oppositely arranged rear rotary arms and two oppositely arranged front rotary arms. By adopting the structure, the screw rod is driven to rotate by the driving piece, the two push blocks are driven to be close to or far away from each other by the rotation of the screw rod, and then the adjacent back rotary arm and the front rotary arm are driven to relatively rotate, so that the fixed block is close to or far away from the base, and finally the front headrest cover moves back and forth relative to the rear headrest cover; the headrest front cover sliding support is compact in overall structure, good in reliability and long in service life, and can guarantee the support strength of the headrest front cover after sliding out.
Description
Technical Field
The invention belongs to the technical field of automobile seats, and particularly relates to an automobile seat headrest with a front-back telescopic function.
Background
The car seat headrest is car seat's core component, plays the effect that supports the person of taking the head, and the seat headrest need not provide reliable head for the person of taking and supports, not only can alleviate and take fatigue, can also protect person of taking head and neck in the traffic accident, reduces the injury in the accident.
Conventional car seat headrests are typically only adjustable up and down, not back and forth. Along with the improvement of economic society and living standards of people, the requirements of people on automobile safety are gradually increased, meanwhile, the requirements on comfort are also different, and in order to meet the requirements of the two points and the scores in a whipping experiment, more and more automobile manufacturers require that the front and back adjusting function of the automobile seat headrest is increased on the basis of lifting adjustment. The existing seat headrest is adjusted forwards and backwards generally in a mode that the headrest integrally moves forwards or backwards, and the front and back adjusting mechanism of the headrest is not only complicated in structure, but also large in outer contour size, and difficult to apply to the existing slim seat design. It is urgent to solve the above problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides the automobile seat headrest with the front and back telescopic function, which has the advantages of compact structure, no influence on the supporting strength of the headrest, good reliability, greatly improved outer contour size and greatly increased design freedom.
In order to realize the purpose, the technical scheme of the invention is as follows:
the utility model provides a car seat headrest with flexible function around which lies in, includes: a headrest rear cover; the headrest front cover is covered on the headrest rear cover and can move back and forth relative to the headrest rear cover; the front and back telescopic mechanism is positioned between the headrest rear cover and the headrest front cover and is used for driving the headrest front cover; wherein, front and back telescopic machanism includes: the fixed block is fixed on the headrest front cover; a base fixed on the headrest rear cover; the screw rod is arranged along the horizontal direction, and the axis of the screw rod is vertical to the movement direction of the headrest front cover; the driving piece is used for driving the screw rod to rotate; the two push blocks are in threaded fit with the screw rod and driven by the screw rod to approach or separate from each other; the two ends of each pushing block are hinged to one rear rotating arm and one front rotating arm respectively, one end, far away from the pushing block, of each rear rotating arm is hinged to the base, and one end, far away from the pushing block, of each front rotating arm is hinged to the fixing block.
By adopting the structure, the screw rod is driven to rotate by the driving piece, the two push blocks are driven to be close to or far away from each other by the rotation of the screw rod, and then the adjacent back rotary arm and the front rotary arm are driven to relatively rotate, so that the fixed block is close to or far away from the base, and finally the front headrest cover moves back and forth relative to the rear headrest cover; the headrest front cover sliding-out support structure has the advantages that the overall structure is compact, the support strength of the headrest front cover after sliding out can be guaranteed, the reliability is good, the service life is long, the size of the outer contour is greatly improved, and the degree of freedom of design is greatly increased.
Preferably, the driving member includes: a mounting seat in sliding fit with the base; and the driving motor is fixed on the mounting seat and used for driving the screw rod to rotate. Structure more than adopting, drive the lead screw through driving motor and rotate, easily realize, the reliability is high to, the mount pad can be followed the base and slided, has further improved the support intensity behind the headrest protecgulum roll-off forward.
Preferably, the method comprises the following steps: the base is provided with a guide frame matched with the mounting seat, and the mounting seat is embedded into the guide frame and can slide along the guide frame. By adopting the structure, the sliding fit between the mounting seat and the base is realized.
Preferably, the method comprises the following steps: the inner walls of the guide frames on the two sides of the mounting seat are respectively provided with a left sliding groove and a right sliding groove, the inner wall of the upper portion of the guide frame is provided with an upper sliding groove, the two sides of the mounting seat are respectively provided with a left sliding block in sliding fit with the left sliding groove and a right sliding block in sliding fit with the right sliding groove, and the upper end of the mounting seat is provided with an upper sliding block in sliding fit with the upper sliding groove. By adopting the structure, the reliability of the mounting seat sliding along the base is further improved, and the front and rear telescopic mechanisms are more reliable.
Preferably, the method comprises the following steps: and one end of each back swing arm, which is close to the front swing arm, is provided with a first tooth part, and one end of each front swing arm, which is close to the back swing arm, is provided with a second tooth part adaptive to the first tooth part. By adopting the structure, the front swing arm and the rear swing arm can be linked and the assembly precision requirement can be met through the first tooth part and the second tooth part.
Preferably, the method comprises the following steps: each front radial arm and each rear radial arm are provided with a first lightening groove, and a first reinforcing rib is arranged in each first lightening groove. By adopting the structure, the self strength of the front swing arm and the rear swing arm is ensured, and the purpose of reducing weight is realized.
Preferably, the method comprises the following steps: the base is embedded in the headrest rear cover through a clamping structure. By adopting the structure, the structure is simple and reliable, the assembly is easy, and the preparation of parts is reduced.
Preferably, the method comprises the following steps: and both ends of the screw rod are provided with limiting parts. By adopting the structure, the maximum distance between the two push blocks is limited.
Preferably, the method comprises the following steps: a headrest rod is fixed on the base. By adopting the structure, the safety of the seat headrest is ensured, and the structure is simple and reliable.
Preferably, the method comprises the following steps: the fixed block is provided with a second lightening groove, and a second reinforcing rib is arranged in each second lightening groove. By adopting the structure, the self strength of the fixing block is ensured, and the purpose of weight reduction is realized.
Compared with the prior art, the invention has the beneficial effects that:
the automobile seat headrest with the front and back telescopic function provided by the invention has the advantages of compact structure, high support strength and good reliability, realizes the function of front and back telescopic adjustment, greatly improves the size of the outer contour and greatly increases the degree of freedom of design.
Drawings
FIG. 1 is a schematic view of the present invention in a forward extended state;
FIG. 2 is a schematic structural view of the present invention in a rearwardly retracted state;
FIG. 3 is a schematic structural view of the front and rear telescoping mechanisms in a forward extended state;
FIG. 4 is a schematic structural view of the front and rear telescopic mechanisms in a state of being retracted backward;
FIG. 5 is a schematic structural view of the front arm and the rear arm in an open state;
FIG. 6 is a schematic structural view of the front swing arm and the rear swing arm in a stored state;
FIG. 7 is a schematic view of the matching relationship between the driving motor and the lead screw;
FIG. 8 is a schematic view of the connection between the mounting base and the base;
fig. 9 is a schematic view showing a connection relationship between the base and the headrest rear cover.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1 to 4, an automobile seat headrest with front and back telescopic function comprises a headrest rear cover 1, a headrest front cover 2, a front and back telescopic mechanism 3 and a headrest rod 4, wherein the headrest front cover 2 can move back and forth relative to the headrest rear cover 1, the front and back telescopic mechanism 3 is positioned between the headrest rear cover 1 and the headrest front cover 2, the front and back telescopic mechanism 3 is used for driving the headrest front cover 2 to move back and forth relative to the headrest rear cover 1, and the headrest rod 4 is fixed on the front and back telescopic mechanism 3 and is fixedly connected with the headrest rear cover 1.
Referring to fig. 3 to 6, the front-rear telescopic mechanism 3 includes a fixing block 30, a base 31, a screw rod 32, a driving member 33, two pushing blocks 34, two oppositely disposed rear swing arms 35, and two oppositely disposed front swing arms 36.
Referring to fig. 3, 4, 8 and 9, the fixing block 30 is fixedly connected with the headrest front cover 2, the fixing block 30 is provided with weight-reducing grooves two, and each weight-reducing groove two is provided with a reinforcing rib two, so that the strength of the fixing block 30 is ensured, and the purpose of reducing weight is achieved. The base 31 is embedded in the headrest rear cover 1 through the snap structure 5. The headrest front cover 2 is driven by the fixing block 30 to move back and forth relative to the headrest rear cover 1.
Referring to fig. 5 to 8, the driving member 33 includes a mounting base 331, a driving motor 332 and a reduction transmission assembly 336, the driving motor 332 is fixedly mounted on the mounting base 331, an output shaft of the driving motor 332 rotates, and the output shaft is reduced by the reduction transmission assembly 336 to drive the screw rod 32 to rotate.
Further, a left slider 333 is provided on the left side wall of the mounting base 331, a right slider 334 is provided on the right side wall, an upper slider 335 is provided on the upper wall, the base 31 has a guide frame 311 corresponding to the mounting base 311, and the mounting base 331 is fitted in the guide frame 311 and is slidable along the guide frame 311. The inner wall of the guide frame 311 has a left slide groove 312 slidably engaged with the left slider 333, a right slide groove 313 slidably engaged with the right slider 334, and an upper slide groove 314 slidably engaged with the upper slider 335, so that the mount 331 can reliably and smoothly slide forward and backward with respect to the guide frame 311 of the base 31.
Referring to fig. 7, the screw rod 32 is arranged along the horizontal direction, the axis of the screw rod 32 is perpendicular to the moving direction of the headrest front cover 2, and the two push blocks 34 can be driven to approach or separate from each other by the rotation of the screw rod 32. In addition, two ends of the screw rod 32 are provided with limiting parts 321 to limit the maximum distance of the two pushing blocks 34 away from each other.
Referring to fig. 5, 6 and 8, two pushing blocks 34 are oppositely mounted on the screw rod 32 and are in threaded engagement with the screw rod 32, and each pushing block 34 is hinged to a rear radial arm 35 and a front radial arm 36. One end of each rear radial arm 35, which is far away from the push block 34, is hinged with the base 31, and one end of each front radial arm 36, which is far away from the push block 34, is hinged with the fixed block 30.
Referring to fig. 1 to 6, when the screw rod 32 rotates to drive the two pushing blocks 34 to approach each other, the pushing blocks 34 drive the rear rotating arm 35 and the front rotating arm 36 hinged thereto to rotate, an included angle between the rear rotating arm 35 and the front rotating arm 36 is increased, the fixing block 30 is far away from the base 31, and the headrest front cover 2 moves forward; when the two pushing blocks 34 are driven by the rotation of the screw rod 32 to move away from each other, the pushing blocks 34 drive the rear rotating arm 35 and the front rotating arm 36 which are hinged with the pushing blocks to rotate, the included angle between the rear rotating arm 35 and the front rotating arm 36 is reduced, the fixed block 30 is close to the base 31, and the headrest front cover 2 moves backwards.
Referring to fig. 5 and 6, one end of each of the back swing arms 35 close to the front swing arm 36 is provided with a first tooth 351, one end of each of the front swing arms 36 close to the back swing arm 35 is provided with a second tooth 361 corresponding to the first tooth 351, and the first tooth 351 and the second tooth 361 can link the front swing arm 36 and the back swing arm 35 and meet the requirement of assembly accuracy. Moreover, each of the front radial arm 36 and the rear radial arm 35 is provided with a weight reduction groove 371, and a reinforcing rib 372 is arranged in each weight reduction groove 371, so that the self strength of the front radial arm 36 and the rear radial arm 35 is ensured, and the purpose of weight reduction is realized.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (5)
1. A headrest for a seat of an automobile having a front-rear telescopic function, comprising:
a headrest rear cover (1);
the headrest front cover (2) covers the headrest rear cover (1) and can move back and forth relative to the headrest rear cover (1); and
a front and rear telescopic mechanism (3) which is positioned between the headrest rear cover (1) and the headrest front cover (2) and is used for driving the headrest front cover (2);
wherein the front and rear telescopic mechanism (3) comprises:
a fixing block (30) fixed on the headrest front cover (2);
a base (31) fixed to the headrest rear cover (1);
a screw rod (32) which is arranged along the horizontal direction, and the axis of the screw rod (32) is vertical to the movement direction of the headrest front cover (2);
the driving piece (33) is used for driving the screw rod (32) to rotate;
the two push blocks (34) are oppositely arranged on the screw rod (32), are in threaded fit with the screw rod (32) and are driven by the screw rod (32) to approach or separate from each other; and
the two ends of each pushing block (34) are hinged with one rear swing arm (35) and one front swing arm (36) respectively, one end, far away from the pushing block (34), of each rear swing arm (35) is hinged with the base (31), and one end, far away from the pushing block (34), of each front swing arm (36) is hinged with the fixed block (30);
the drive member (33) comprises:
a mounting seat (331) which is slidably fitted to the base (31); and
the driving motor (332) is fixed on the mounting seat (331) and is used for driving the screw rod (32) to rotate;
a guide frame (311) matched with the installation seat (331) is arranged on the base (31), and the installation seat (331) is embedded in the guide frame (311) and can slide along the guide frame (311);
a left sliding chute (312) and a right sliding chute (313) are respectively arranged on the inner wall of the guide frame (311) at two sides of the installation seat (331), an upper sliding chute (314) is arranged on the inner wall of the upper part of the guide frame (311), a left sliding block (333) in sliding fit with the left sliding chute (312) and a right sliding block (334) in sliding fit with the right sliding chute (313) are respectively arranged at two sides of the installation seat (331), and an upper sliding block (335) in sliding fit with the upper sliding chute (314) is arranged at the upper end of the installation seat (331);
a headrest rod (4) is fixed on the base (31);
the fixed block (30) is provided with a second weight reduction groove, and a second reinforcing rib is arranged in each second weight reduction groove.
2. The headrest for vehicle seats having a fore-and-aft telescopic function according to claim 1, wherein: one end of each rear rotating arm (35) close to the front rotating arm (36) is provided with a first tooth part (351), and one end of each front rotating arm (36) close to the rear rotating arm (35) is provided with a second tooth part (361) which is adaptive to the first tooth part (351).
3. The headrest for vehicle seats having a front-rear telescopic function according to claim 2, wherein: each front radial arm (36) and each rear radial arm (35) are provided with a first lightening groove (371), and a first reinforcing rib (372) is arranged in each first lightening groove (371).
4. The headrest for vehicle seats having a front-rear telescopic function according to claim 1, wherein: the base (31) is embedded in the headrest rear cover (1) through the clamping structure (5).
5. The headrest for vehicle seats having a front-rear telescopic function according to claim 1, wherein: both ends of the screw rod (32) are provided with limiting parts (321).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710385909.7A CN107284303B (en) | 2017-05-26 | 2017-05-26 | Automobile seat headrest with front and back telescopic function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710385909.7A CN107284303B (en) | 2017-05-26 | 2017-05-26 | Automobile seat headrest with front and back telescopic function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107284303A CN107284303A (en) | 2017-10-24 |
| CN107284303B true CN107284303B (en) | 2023-04-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710385909.7A Active CN107284303B (en) | 2017-05-26 | 2017-05-26 | Automobile seat headrest with front and back telescopic function |
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| Country | Link |
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| CN (1) | CN107284303B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113525205B (en) * | 2021-08-26 | 2022-08-19 | 延锋国际座椅系统有限公司 | Seat electric headrest |
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| CN107284303A (en) | 2017-10-24 |
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Address after: 401122 No. 4, Changfu West Road, North District, Chongqing Economic and Technological Development Zone Applicant after: Chongqing andotuo Auto Parts System Co.,Ltd. Address before: 401122 No. 4, Changfu West Road, North District, Chongqing Economic and Technological Development Zone Applicant before: Chongqing Yanfeng Johnson Automotive Parts System Co.,Ltd. |
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Address after: 401122 No. 4, Changfu West Road, North District, Chongqing Economic and Technological Development Zone Applicant after: Anduto (Chongqing) Automotive Parts Co.,Ltd. Address before: 401122 No. 4, Changfu West Road, North District, Chongqing Economic and Technological Development Zone Applicant before: Chongqing andotuo Auto Parts System Co.,Ltd. |
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