CN112248963A - Height adjuster - Google Patents
Height adjuster Download PDFInfo
- Publication number
- CN112248963A CN112248963A CN202010972326.6A CN202010972326A CN112248963A CN 112248963 A CN112248963 A CN 112248963A CN 202010972326 A CN202010972326 A CN 202010972326A CN 112248963 A CN112248963 A CN 112248963A
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- CN
- China
- Prior art keywords
- friction
- guide rail
- sliding block
- height adjuster
- rod
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- 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.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R22/00—Safety belts or body harnesses in vehicles
- B60R22/18—Anchoring devices
- B60R22/20—Anchoring devices adjustable in position, e.g. in height
- B60R22/201—Anchoring devices adjustable in position, e.g. in height with the belt anchor connected to a slider movable in a vehicle-mounted track
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a height adjuster, which comprises a guide rail, a sliding block, a pulling part and a locking mechanism, wherein the sliding block is arranged on the guide rail in a sliding manner, the pulling part is arranged on the sliding block and is elastically connected with the sliding block, and the locking mechanism is arranged on the sliding block; the capture mechanism comprises at least one connector, a cam assembly and a friction assembly; the connecting piece penetrates through the sliding block and is connected with the pulling part, the connecting piece is used for driving the friction assembly by driving the cam assembly, so that the friction assembly is movably contacted with the guide rail, and the friction assembly is used for locking the position of the sliding block on the guide rail when the friction assembly is contacted with the guide rail. The invention discloses a height adjuster, which can realize stepless height adjustment, and can lock the position of a sliding block on a guide rail by contacting a friction assembly with the guide rail.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a height adjuster.
Background
With the popularization of automobiles, the safety of automobiles becomes a concern for drivers and passengers. The safety of the safety belt can be well ensured by the conventional safety belt lock catch; in order to fit drivers and passengers of different sizes, the seat accessories of the vehicle are provided with height adjusters for adjusting the height of the safety belt.
The prior Chinese patent publication No. CN207029112U entitled "height adjuster" comprises a guide rail and a slide block component arranged on the guide rail in a sliding way; the lower end surface of the guide rail is connected with a plurality of plastic groove bodies along the track direction, and the interior of each plastic groove body is communicated with the upper end surface of the guide rail to form a clamping groove; the sliding block assembly comprises a gland, a bolt and an adjusting rod, wherein the gland is movably arranged on the guide rail, the bolt is arranged in the gland, and the adjusting rod drives the bolt to move axially; the axial direction of the bolt is vertical to the track direction of the guide rail, and the lower shaft end of the bolt can penetrate through the gland and enter the clamping groove; the height adjuster is provided with a plurality of height gears, when the height of the safety belt is adjusted, the height of the safety belt needs to be adjusted according to the preset height gears, the body shapes of human bodies are different, and therefore the preset height gears cannot meet different body shapes of human bodies, and the riding comfort of people is affected.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, a height adjuster for realizing stepless adjustment is provided.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a height adjuster, comprising:
a guide rail;
the sliding block is arranged on the guide rail in a sliding mode;
the pulling part is arranged on the sliding block and is elastically connected with the sliding block;
the locking mechanism is arranged on the sliding block; the capture mechanism comprises at least one connector, a cam assembly and a friction assembly; the connecting piece penetrates through the sliding block and is connected with the pulling part, the connecting piece is used for driving the friction assembly by driving the cam assembly, so that the friction assembly is movably contacted with the guide rail, and the friction assembly is used for locking the position of the sliding block on the guide rail when the friction assembly is contacted with the guide rail.
Preferably, the cam assembly comprises an eccentric wheel, a connecting rod and an elastic piece, one end of the connecting rod abuts against the eccentric wheel, the other end of the connecting rod abuts against the elastic piece, the elastic piece is fixedly connected with the sliding block, and the elastic piece is in a compression state so as to ensure that the connecting rod always abuts against the eccentric wheel.
Preferably, the friction assembly comprises a first friction rod and a second friction rod, one end of the first friction rod is hinged to one end of the second friction rod, the other ends of the first friction rod and the second friction rod are movably contacted with the guide rail, the connecting rod is connected with the hinged portion of the first friction rod and the second friction rod, the sliding block is provided with a first limiting column and a second limiting column, the first friction rod is provided with a first guide groove for the first limiting column to extend into, and the second friction rod is provided with a second guide groove for the second limiting column to extend into.
Preferably, the cam assembly further comprises a sliding member passing through the connecting rod and the hinge joint of the first and second friction bars.
Preferably, the sliding member further passes through the guide rail, and the guide rail is provided with a sliding groove for the sliding member to slide.
Preferably, the sliding member includes a sliding rod and a sliding plate, one end of the sliding rod is connected to the sliding plate, and the other end of the sliding rod passes through the sliding groove.
Preferably, the cam assembly further comprises a connecting shaft limited on the sliding block, the connecting shaft penetrates through the eccentric wheel, at least one gear is arranged on the connecting shaft, the number of the gears corresponds to that of the connecting pieces, the gears are meshed with the connecting pieces, and the connecting pieces are racks.
Preferably, friction edges are arranged on two sides of the guide rail, and the friction edges on the two sides of the guide rail are respectively in movable contact with the first friction rod and the second friction rod.
Preferably, each friction edge is provided with a limiting part for limiting the sliding block.
Preferably, grooves are formed in two sides of the sliding block, and the two limiting parts can extend into the grooves respectively.
The invention discloses a height adjuster, which can realize stepless height adjustment, and can lock the position of a sliding block on a guide rail by contacting a friction assembly with the guide rail.
Drawings
Fig. 1 is a schematic view of the overall structure of the height adjuster of the present invention.
Fig. 2 is an exploded view of the height adjuster of the present invention.
Fig. 3 is a schematic view of a guide rail structure of the height adjuster of the present invention.
Fig. 4 is a schematic structural view of a pulling part of the height adjuster of the present invention.
Fig. 5 is a schematic structural view of a slider of the height adjuster of the present invention.
Fig. 6 is a schematic structural view of a locking mechanism of the height adjuster of the present invention.
Fig. 7 is a schematic view of the cam assembly of the present invention.
Fig. 8 is a schematic view of the connection between the locking mechanism and the guide rail according to the present invention.
FIG. 9 is a schematic view of the friction pack of the present invention.
Fig. 10 is a schematic structural view of the sliding member of the present invention.
100, guide rails; 110. a chute; 120. rubbing the edges; 121. a limiting part; 200. a slider; 210. a groove; 220. a limiting member; 221. clamping the opening; 230. a first limit post; 240. a second limit post; 250. a baffle plate; 300. a pulling part; 310. a handle 310; 400. a locking mechanism; 410. a connecting member; 420. a cam assembly; 421. an eccentric wheel; 422. a connecting rod; 423. an elastic member; 424. a slider; 424a, sliding bar; 424b, a sliding plate; 430. a friction assembly; 425. a connecting shaft; 425a, a gear; 431. a first friction lever; 431a, a first guide groove; 432. a second friction lever; 431a, a first guide groove; 432a, second guide groove.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Referring to fig. 1 to 10, the present invention discloses a height adjuster, which includes a guide rail 100, a slider 200, a pulling portion 300, and a locking mechanism 400; the sliding block 200 is slidably disposed on the guide rail 100, and the capture mechanism 400 is disposed on the sliding block 200; the pull part 300 is pulled by hand to prevent the capture mechanism 400 from contacting the guide rail 100, and the position locking of the slider 200 is released, so that the slider 200 can slide on the guide rail 100, the pull part 300 is elastically connected with the slider 200, when the pull part 300 is not pulled, the capture mechanism 400 directly contacts the guide rail 100, and the position of the slider 200 on the guide rail 100 is locked through static friction, specifically, the capture mechanism 400 is fixed on the slider 200; the height adjuster disclosed by the invention can realize stepless height adjustment, no gear is arranged on the guide rail 100, and the locking mechanism 400 is contacted with the guide rail 100 in a preset height adjustment range, so that the position of the sliding block 200 is locked.
In this embodiment, the capture mechanism 400 includes at least one link 410, a cam assembly 420, and a friction assembly 430; referring to fig. 6, the connecting member 410 passes through the sliding block 200 and is connected to the pulling part 300, the connecting member 410 drives the friction member 430 by driving the cam member 420, so that the friction member 430 is in movable contact with the guide rail 100, and the position of the sliding block 200 on the guide rail 100 is locked when the friction member 430 is in contact with the guide rail 100.
Referring to fig. 2, when the pulling portion 300 is pulled, the pulling portion 300 drives the connecting member 410 to be pulled out, the connecting member 410 drives the cam member 420 to move, the cam member 420 drives the friction member 430 to move, so that the friction member 430 is not in contact with the guide rail 100, the position locking between the locking mechanism 400 and the guide rail 100 is released, the position locking of the slider 200 on the guide rail 100 is released, the slider 200 can slide at any position within a preset height adjustment range in the guide rail 100, when the slider 200 is adjusted to a desired height position, the pulling portion 300 is released, the pulling portion 300 is reset by the elastic force due to the elastic connection between the pulling portion 300 and the slider 200, the connecting member 410 drives the cam member 420 to return, and the cam member 420 drives the friction member 430 to be in contact with the guide rail 100 and generates a certain static friction.
In the present embodiment, the pulling part 300 is provided with a handle 310 for facilitating the pulling of the human hand, and referring to fig. 4, the handle 310 is substantially annular.
Referring to fig. 6, the cam assembly 420 includes an eccentric wheel 421, a connecting rod 422, and an elastic member 423, wherein one end of the connecting rod 422 abuts against the eccentric wheel 421, the other end of the connecting rod 422 abuts against the elastic member 423, the elastic member 423 is fixedly connected to the sliding block 200, and the elastic member 423 is in a compressed state to ensure that the connecting rod 422 always abuts against the eccentric wheel 421.
The friction assembly 430 comprises a first friction rod 431 and a second friction rod 432, one end of the first friction rod 431 is hinged to one end of the second friction rod 432, the other ends of the first friction rod 431 and the second friction rod 432 are movably contacted with the guide rail 100, the connecting rod 422 is connected with the hinged positions of the first friction rod 431 and the second friction rod 432, the sliding block is provided with a first limiting column 230 and a second limiting column 240, the first friction rod 431 is provided with a first guide groove 431a for the first limiting column 230 to extend into, and the second friction rod 432 is provided with a second guide groove 432a for the second limiting column 240 to extend into.
When the pulling portion 300 is pulled, the pulling portion 300 drives the connecting member 410 to be pulled outwards, the connecting portion drives the eccentric wheel 421 to rotate, at this time, the elastic member 423 drives the connecting rod 422 to be always in contact with the eccentric wheel 421 due to the elastic action of the elastic member 423 (the elastic member 423 is in a compressed state and has elastic potential energy), the movement of the connecting rod 422 drives the friction assembly 430, the movement of the connecting rod 422 drives the first friction rod 431 and the second friction rod 432 in the friction assembly 430 to be separated from being in contact with the guide rail 100, at this time, the pulling portion 300 is pushed, the sliding block 200 can be driven to slide on the guide rail 100, and the sliding block 200 can slide on the guide rail 100.
The cam assembly 420 further includes a slide member 424, see fig. 7 and 10, the slide member 424 passing through a hinge of a first friction lever 431 and a second friction lever 432 and a connecting rod 422.
The slider 424 also passes through the guide rail 100, and the guide rail 100 is provided with a slide groove 110 for the slider 424 to slide.
The sliding member 424 includes a sliding rod 424a and a sliding plate 424b, and one end of the sliding rod 424a is connected to the sliding plate 424b, and the other end passes through the sliding chute 110.
Wherein the length of the sliding groove 110 can define the adjusting range of the height adjuster.
In this embodiment, the elastic member 423 is a spring, one end of the spring is connected to the slider 200, and the other end of the spring abuts against the sliding plate 424b, and when the pulling portion 300 is pulled, the elastic member 423 releases compression potential energy and directly acts on the sliding member 424, and pushes the pull rod to move.
The purpose of the slider 424 is to make the elastic member 423 release compression potential energy more stably, and at the same time, to make the released compression potential energy stably drive the elastic member 423.
The cam assembly 420 further includes a connecting shaft 425 limited on the sliding block 200, and referring to fig. 2 and 7 in particular, the connecting shaft 425 penetrates the eccentric 421, at least one gear 425a is disposed on the connecting shaft 425, the number of the gears 425a corresponds to the number of the connecting members 410, the gears 425a are engaged with the connecting members 410, and the connecting members 410 are racks.
In this embodiment, the connecting members 410 are racks, the number of the connecting members 410 is two, the number of the gears 425a is also two, and the gears 425a are located at two ends of the connecting shaft 425, so that the transmission stability can be improved, the pulling portion 300 is pulled, the racks are engaged with the gears 425a, and then the connecting shaft 425 is driven to rotate, and the connecting shaft 425 drives the eccentric wheel 421 to rotate when rotating.
The friction edges 120 are arranged on both sides of the guide rail 100, and the friction edges 120 on both sides of the guide rail 100 are respectively in movable contact with the first friction rod 431 and the second friction rod 432.
The first friction lever 431 and the second friction lever 432 are made of rubber at portions contacting the guide rail 100.
Each of the friction edges 120 is provided with a stopper 121 for limiting the slider 200.
Referring to fig. 1, 3 and 8, the guide rail 100 may limit the position of the sliding block 200, so that the sliding block 200 can only slide along the length direction of the guide rail 100, the two limiting portions 121 may be disposed oppositely, and the two limiting portions 121 may also be disposed backwards.
When the two limiting portions 121 are oppositely disposed, the limiting portions 121 extend inward from the inner wall of the friction edge 120.
When the two limiting portions 121 are disposed back to back, the limiting portions 121 extend outward from the outer wall of the friction edge 120.
In this embodiment, the sliding block 200 is further provided with two limiting members 220 for limiting the connecting shaft 425, specifically, referring to fig. 5, the number of the limiting members 220 is two, each limiting member is provided with a clamping opening 221 into which the connecting shaft 425 extends, and the connecting shaft 425 rotates in the clamping opening 221 but does not disengage from the clamping opening 221.
The sliding block 200 is further provided with a resisting plate 250 connected with the elastic member 423, and the resisting plate 250 is used for resisting one end of the elastic member 423.
The invention discloses a height adjuster, which can realize stepless height adjustment and is in contact with a guide rail 100 through a friction assembly 430 to lock the position of a sliding block 200 on the guide rail 100.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. A height adjuster, comprising:
a guide rail;
the sliding block is arranged on the guide rail in a sliding mode;
the pulling part is arranged on the sliding block and is elastically connected with the sliding block;
the locking mechanism is arranged on the sliding block; the capture mechanism comprises at least one connector, a cam assembly and a friction assembly; the connecting piece penetrates through the sliding block and is connected with the pulling part, the connecting piece is used for driving the friction assembly by driving the cam assembly, so that the friction assembly is movably contacted with the guide rail, and the friction assembly is used for locking the position of the sliding block on the guide rail when the friction assembly is contacted with the guide rail.
2. A height adjuster according to claim 1, wherein the cam assembly comprises an eccentric wheel, a connecting rod and a resilient member, one end of the connecting rod abuts against the eccentric wheel and the other end abuts against the resilient member, the resilient member is fixedly connected to the slider, and the resilient member is under compression to ensure that the connecting rod always abuts against the eccentric wheel.
3. The height adjuster according to claim 2, wherein the friction member includes a first friction lever and a second friction lever, one end of the first friction lever is hinged to one end of the second friction lever, the other ends of the first friction lever and the second friction lever are both in movable contact with the guide rail, the connecting rod is connected to the hinged portion of the first friction lever and the second friction lever, the sliding block is provided with a first limit post and a second limit post, the first friction lever is provided with a first guide groove into which the first limit post extends, and the second friction lever is provided with a second guide groove into which the second limit post extends.
4. A height adjuster according to claim 3, wherein the cam assembly further comprises a slide member passing through the connecting rod and the hinge of the first and second friction bars.
5. A height adjuster according to claim 4, wherein the slider also passes through the guide track, the guide track being provided with a slideway for sliding movement of the slider.
6. A height adjuster according to claim 5, wherein the slider comprises a slide rod and a slide plate, one end of the slide rod being connected to the slide plate and the other end passing through the slide slot.
7. The height adjuster as claimed in claim 2, wherein the cam assembly further comprises a connecting shaft limited on the sliding block, the connecting shaft passes through the eccentric wheel, at least one gear is arranged on the connecting shaft, the number of the gears corresponds to the number of the connecting pieces, the gears are engaged with the connecting pieces, and the connecting pieces are racks.
8. The height adjuster according to claim 2, wherein the guide rail is provided with friction edges at both sides thereof, and the friction edges at both sides of the guide rail are respectively in movable contact with the first friction rod and the second friction rod.
9. A height adjuster according to claim 8, wherein each of the friction edges is provided with a stop portion for stopping the slider.
10. A height adjuster according to claim 9, wherein grooves are provided on both sides of the slider for the two restricting portions to extend into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010972326.6A CN112248963A (en) | 2020-09-16 | 2020-09-16 | Height adjuster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010972326.6A CN112248963A (en) | 2020-09-16 | 2020-09-16 | Height adjuster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112248963A true CN112248963A (en) | 2021-01-22 |
Family
ID=74231696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010972326.6A Pending CN112248963A (en) | 2020-09-16 | 2020-09-16 | Height adjuster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112248963A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115179894A (en) * | 2022-07-27 | 2022-10-14 | 东风汽车有限公司东风日产乘用车公司 | Height adjusting device for safety belt |
| CN115179894B (en) * | 2022-07-27 | 2024-07-05 | 东风汽车有限公司东风日产乘用车公司 | Safety belt height adjusting device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2942879A1 (en) * | 1979-10-24 | 1981-04-30 | Daimler-Benz Ag, 7000 Stuttgart | Height adjustable safety belt strap reversing fitting - is mounted to swivelling eccentric cam clamping sliding bracket in required position |
| CN201276088Y (en) * | 2008-09-12 | 2009-07-22 | 延锋百利得（上海）汽车安全***有限公司 | Non-gear seat belt altitude controller |
| DE202017105906U1 (en) * | 2017-05-15 | 2017-10-09 | Cixi City Yalu Vehicle Fittings Co., Ltd. | Height regulator with lateral locking |
| CN108309624A (en) * | 2018-03-09 | 2018-07-24 | 河南中医药大学 | Orthopedic traction bed |
| CN109624911A (en) * | 2018-11-06 | 2019-04-16 | 宁波工程学院 | A kind of safety belt height adjuster |
| CN109624910A (en) * | 2018-11-06 | 2019-04-16 | 宁波工程学院 | A kind of side locking type safety belt height adjuster |
| CN210912337U (en) * | 2019-10-16 | 2020-07-03 | 慈溪市亚路车辆配件有限公司 | Height adjuster |
-
2020
- 2020-09-16 CN CN202010972326.6A patent/CN112248963A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2942879A1 (en) * | 1979-10-24 | 1981-04-30 | Daimler-Benz Ag, 7000 Stuttgart | Height adjustable safety belt strap reversing fitting - is mounted to swivelling eccentric cam clamping sliding bracket in required position |
| CN201276088Y (en) * | 2008-09-12 | 2009-07-22 | 延锋百利得（上海）汽车安全***有限公司 | Non-gear seat belt altitude controller |
| DE202017105906U1 (en) * | 2017-05-15 | 2017-10-09 | Cixi City Yalu Vehicle Fittings Co., Ltd. | Height regulator with lateral locking |
| CN108309624A (en) * | 2018-03-09 | 2018-07-24 | 河南中医药大学 | Orthopedic traction bed |
| CN109624911A (en) * | 2018-11-06 | 2019-04-16 | 宁波工程学院 | A kind of safety belt height adjuster |
| CN109624910A (en) * | 2018-11-06 | 2019-04-16 | 宁波工程学院 | A kind of side locking type safety belt height adjuster |
| CN210912337U (en) * | 2019-10-16 | 2020-07-03 | 慈溪市亚路车辆配件有限公司 | Height adjuster |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115179894A (en) * | 2022-07-27 | 2022-10-14 | 东风汽车有限公司东风日产乘用车公司 | Height adjusting device for safety belt |
| CN115179894B (en) * | 2022-07-27 | 2024-07-05 | 东风汽车有限公司东风日产乘用车公司 | Safety belt height adjusting device |
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