CN110626225A - Slide rail and car seat slide rail assembly with roll clearance subassembly that disappears - Google Patents
Slide rail and car seat slide rail assembly with roll clearance subassembly that disappears Download PDFInfo
- Publication number
- CN110626225A CN110626225A CN201911056127.4A CN201911056127A CN110626225A CN 110626225 A CN110626225 A CN 110626225A CN 201911056127 A CN201911056127 A CN 201911056127A CN 110626225 A CN110626225 A CN 110626225A
- Authority
- CN
- China
- Prior art keywords
- rail
- bearing
- slide rail
- bearings
- inner rail
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
- B60N2/07—Slide construction
- B60N2/0722—Constructive details
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a slide rail with rolling clearance elimination components and an automobile seat slide rail assembly. The rolling gap eliminating assembly includes one first bearing connected to the inner rail and one second bearing connected to the inner rail rotatably, the first bearing has outer circumference contacting the bottom of the rail cavity, and the second bearing has outer circumference contacting the transition surface between the top and the outer side of the rail cavity to eliminate the width gap and the height gap of the inner rail and the outer rail. In addition, the rolling clearance eliminating assembly further comprises an adjusting bracket and an adjusting spring, and the second bearing is in closer contact with the transition surface under the elastic force of the adjusting spring. The width of this slide rail is to clearance and height to the clearance all zero to, this slide rail overall structure is simple, slide smoothly.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a sliding rail with a rolling clearance eliminating component and an automobile seat sliding rail assembly.
Background
The slide rail of the automobile seat comprises an outer rail and an inner rail, wherein a rail cavity is respectively formed in the width direction of the outer rail towards the two sides, and the width direction of the inner rail is respectively positioned in the two rail cavities towards the two sides. After the seat is assembled, the inner rail and the outer rail have large gaps in the width direction and the height direction, abnormal sound is generated when the seat is adjusted, and riding experience is influenced.
In the prior art, the structure for eliminating the width-direction gap and the height-direction gap of the inner rail and the outer rail is as follows: two groups of contact assemblies are respectively arranged; the first group of contact assemblies are arranged between the inner rail and the outer side surface of the rail cavity, so that the inner rail is in sliding contact with the outer side surface of the rail cavity through the contact assemblies, and the width-direction gap between the inner rail and the outer rail is eliminated; the second set of contact assemblies is disposed between the top and bottom surfaces of the rail cavity and is connected to the inner rail such that the inner rail is in rolling contact with the top and bottom surfaces of the rail cavity through the contact assemblies, thereby eliminating the vertical clearance between the inner rail and the outer rail.
The sliding rail has the advantages that the number of structural parts is large, the integral structure of the sliding rail is complex, and the sliding smoothness of the sliding rail is influenced due to the fact that the inner rail is in sliding contact with the outer rail through the first group of contact assemblies.
In view of this, how to eliminate the width-direction gap and the height-direction gap of the inner rail and the outer rail with a simple structure and ensure the smoothness of the sliding rail is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In order to solve the technical problems, the invention provides a sliding rail with rolling gap elimination assemblies, which comprises an outer rail and an inner rail, wherein a rail cavity is formed in the width direction of the outer rail towards two sides respectively, and the width direction of the inner rail towards two sides is respectively positioned in the two rail cavities; the rolling gap elimination assembly comprises:
a first bearing rotatably coupled to the inner rail, an outer periphery of the first bearing contacting a bottom surface of the rail cavity;
and the second bearing is rotatably connected with the inner rail, and one end, close to the outer side face of the rail cavity, of the second bearing inclines towards the bottom face of the rail cavity, so that the periphery of the second bearing is in contact with the transition face between the top face and the outer side face of the rail cavity.
So set up, the second bearing both had played the width of eliminating inner rail and outer rail to the effect in clearance, still played the effect of eliminating the height of inner rail and outer rail to the clearance with the cooperation of first bearing, had two-way clearance elimination function concurrently, therefore, compare the background art, can effectively reduce the rolling spare part that disappears the clearance subassembly, simplify the overall structure of slide rail.
And because first bearing and second bearing homoenergetic rotate, so the contact type between interior rail and the outer rail is rolling contact, can effectively reduce the frictional force between interior rail and the outer rail like this, guarantees the smooth and easy nature of sliding of slide rail.
The slide rail as described above, said rolling gap elimination assembly further comprising:
an adjustment bracket rotatably coupled to the inner rail, the second bearing rotatably coupled to the adjustment bracket;
and the adjusting spring is connected with the adjusting bracket so as to apply a rotating torque to the adjusting bracket, so that the adjusting bracket drives the second bearing to be closer to the transition surface.
According to the sliding rail, the rolling gap eliminating assembly comprises a plurality of second bearings and an equal number of adjusting brackets, the second bearings are correspondingly connected to the adjusting brackets one by one, and the adjusting brackets are arranged at intervals along the length direction of the inner rail.
According to the slide rail, one end of the adjusting spring is connected with one adjusting bracket, and the other end of the adjusting spring is connected with the other adjusting bracket.
The slide rail, the two adjusting brackets connected with the same adjusting spring and the two second bearings connected with the adjusting brackets form an adjusting unit; the rotating shafts of the two second bearings of the adjusting unit are positioned between the rotating shafts of the two adjusting brackets, and the adjusting spring is in a stretching state.
According to the slide rail, the adjusting bracket is an angle-shaped plate, the first plate surface of the angle-shaped plate is parallel to the end surface of the second bearing, and the adjusting spring is connected to the second plate surface of the angle-shaped plate.
The sliding rail as described above, the rolling gap eliminating assembly includes a plurality of the first bearings, wherein a part of the first bearings are disposed at one end of the inner rail in the length direction, the rest of the first bearings are disposed at the other end of the inner rail in the length direction, and all of the second bearings are disposed between the two ends of the inner rail in the length direction.
In the slide rail as described above, an end of the second bearing close to the outer side surface of the rail cavity is inclined to the bottom surface of the rail cavity by 45 °.
According to the sliding rail, the two groups of rolling gap eliminating assemblies are symmetrically arranged relative to the inner rail, the inner rail is welded with the connecting shaft, and the two first bearings which are symmetrical relative to the inner rail are respectively connected to two ends of the same connecting shaft.
In addition, the invention also provides an automobile seat slide rail assembly, which comprises a slide rail, a locking mechanism for locking the slide rail, an unlocking mechanism for unlocking the slide rail and an electric control mechanism for controlling the unlocking mechanism and the locking mechanism to act, wherein the slide rail is any one of the slide rails.
Since the slide rail has the above technical effects, the vehicle seat slide rail assembly having the slide rail also has the above technical effects, which are not repeated herein.
Drawings
FIG. 1 is a perspective view of one embodiment of a vehicle seat track assembly in accordance with the present invention;
FIG. 2 is a side view of the slide rail of FIG. 1;
fig. 3 is a perspective view of the inner rail and the rolling gap elimination assembly of fig. 2.
Wherein the reference numerals in fig. 1 to 3 are explained as follows:
1, a sliding rail;
11 inner rail, 12 outer rail, 121 rail cavity, a bottom surface of the rail cavity, b top surface of the rail cavity, c outer side surface of the rail cavity, d transition surface, 13 first bearing, 14 second bearing, 15 adjusting bracket, 16 adjusting spring, 17 connecting shaft, rotating shaft of the S1 second bearing, and rotating shaft of the S2 adjusting bracket.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution of the present invention is further described in detail below with reference to the accompanying drawings and the detailed description.
It should be noted that, in the context of the present description, the length direction refers to the extending direction of the outer rail 12 and the inner rail 11. The height direction refers to a direction perpendicular to the top surface b and the bottom surface a of the rail cavity 121 of the outer rail 12. The width direction refers to a direction perpendicular to the length direction and the height direction.
Referring to fig. 1 to 3, fig. 1 is a perspective view of an embodiment of a seat track assembly for a vehicle according to the present invention; FIG. 2 is a side view of the slide rail of FIG. 1; fig. 3 is a perspective view of the inner rail and the rolling gap elimination assembly of fig. 2.
As shown in FIG. 1, the vehicle seat track assembly includes two tracks arranged in parallel. The slide rail 1 comprises an inner rail 11 and an outer rail 12, a rail cavity 121 is respectively formed by the width of the outer rail 12 towards two sides, the width of the inner rail 11 towards two sides is respectively positioned in the two rail cavities 121, and a group of rolling gap eliminating assemblies is respectively arranged in the two rail cavities 121.
The automobile seat slide rail assembly also comprises a locking mechanism for locking the slide rail 1, and the relative positions of the inner rail 11 and the outer rail 12 are fixed in a locking state; the unlocking mechanism is used for unlocking the sliding rail 1, and in an unlocking state, the inner rail 11 can slide along the outer rail 12; the locking mechanism also comprises a control mechanism used for controlling the action of the locking mechanism and the unlocking mechanism. The prior art discloses some types of unlocking mechanisms, locking mechanisms and control mechanisms, and this part is not the design focus of the present invention, so the structures of these mechanisms are not described herein.
As shown in fig. 2, the rolling anti-backlash assembly includes a first bearing 13 and a second bearing 14. The first bearing 13 and the second bearing 14 are both connected to the inner rail 11, and in the connected state, both the first bearing 13 and the second bearing 14 are capable of rotating.
In the specific embodiment, the rotating shaft of the first bearing 13 extends along the width direction of the outer rail 12, and the rotating shaft of the second bearing 14 is located on a vertical plane determined by the width direction and the height direction of the outer rail 12.
In a specific embodiment, the first bearing 13 is riveted to the inner rail 1 through a rivet, the connecting shaft 17 is welded to the inner rail 11, and the second bearing 14 is anchored to an end face of the connecting shaft 17 through an anchor. In practice, the connection form between the first bearing 13 and the second bearing 14 and the inner rail 11 is not limited to caulking, and other connection forms that can rotatably connect the first bearing 13 and the second bearing 14 to the inner rail 11 are also possible.
In the embodiment, the two rolling gap eliminating assemblies are symmetrically arranged relative to the inner rail 11, and the two first bearings 13 which are symmetrical relative to the inner rail 11 are respectively connected to two ends of the same connecting shaft 17. This facilitates the arrangement.
As shown in fig. 3, each of the rail cavities 121 has a bottom surface a, a top surface b, and an outer side surface c connecting between the outside of the top surface b and the outside of the bottom surface a. The outer periphery of the first bearing 13 is in contact with the bottom surface a of the rail cavity 121. The end of the second bearing 14 close to the outer side face c of the rail cavity 121 is inclined toward the bottom face a of the rail cavity 121 so that the outer circumference of the second bearing 14 contacts the transition face d between the top face b and the outer side face c of the rail cavity 121.
So set up, second bearing 14 both had played the effect of eliminating the width of interior rail 11 and outer rail 12 to the clearance, still played the effect of eliminating the height of interior rail 11 and outer rail 12 to the clearance with first bearing 13 cooperation, had two-way clearance elimination function concurrently, therefore, compare the background art, can effectively reduce the spare part that rolls clearance subassembly that disappears, therefore the overall structure of simplified slide rail. In addition, since the first bearing 13 and the second bearing 14 can both rotate, the contact type between the inner rail 11 and the outer rail 12 is rolling contact, so that the friction force between the inner rail 11 and the outer rail 12 can be effectively reduced, and the sliding smoothness of the slide rail can be ensured.
Preferably, the end of the second bearing 14 close to the outer side surface c of the rail cavity 121 is inclined 45 ° to the bottom surface a of the rail cavity 121. This angle facilitates the outer circumference of the second bearing 14 to closely contact the transition surface d.
Specifically, each group of rolling gap eliminating assemblies may include a plurality of first bearings 13, each first bearing 13 is arranged at intervals along the length direction of the inner rail 11, wherein a part of the first bearings 13 is arranged at one end of the length direction of the inner rail 11, the rest of the first bearings 13 are arranged at the other end of the length direction of the inner rail 11, and all the second bearings 14 are arranged between the two ends of the length direction of the inner rail 11, so that the arrangement is convenient. In the figure, each set of rolling gap elimination assemblies is provided with two first bearings 13. In practical implementation, the number of the first bearings 13 may be flexibly set according to the length of the slide rail, for example, three, four or more bearings may be set. In actual practice, the number of the first bearings 13 mounted to both ends of the length of the inner rail 11 may be the same or different.
Specifically, each set of rolling gap elimination assemblies may include a plurality of second bearings 14, with each second bearing 14 being spaced along the length of the inner rail 11. In the figure, each set of rolling clearance-reducing assemblies is provided with two second bearings 14. In practical implementation, the number of the second bearings 14 can be flexibly set according to the length of the slide rail, for example, three, four or more bearings can be set.
Further, as shown in fig. 2, the rolling backlash elimination assembly may further include an adjustment bracket 15 and an adjustment spring 16.
Wherein, the adjusting bracket 15 is connected with the inner rail 11, and the adjusting bracket 15 can rotate under the connection state. The second bearing 14 is connected to the adjustment bracket 15, in which case the second bearing 14 is indirectly connected to the inner rail 11 via the adjustment bracket 15, and in the connected state the second bearing 14 can be rotated. The rotation axis S1 of the second bearing 14 is not collinear with the rotation axis S2 of the adjusting bracket 15, so that the relative position of the second bearing 14 and the inner rail 11 can be changed when the adjusting bracket 15 rotates.
The adjusting spring 16 is used to apply a rotational moment to the adjusting bracket 15, so that the adjusting bracket 15 drives the second bearing 14 to be closer to the transition surface d.
By arranging the adjusting bracket 15 and the adjusting spring 16, the second bearing 14 can be in closer contact with the transition surface d under the elastic force of the adjusting spring 16, thereby being more beneficial to eliminating the gap.
In addition, as the inner rail 11 slides, the second bearing 14 may contact different positions in the length direction of the transition surface d, and the different positions in the length direction of the transition surface d may have machining deviation, and when the adjusting bracket 15 and the adjusting spring 16 are not provided, it may occur that the second bearing 14 does not contact the transition surface d at some positions. After the adjusting bracket 15 and the adjusting spring 16 are arranged, when the second bearing 14 is separated from the transition surface d, the adjusting bracket 15 drives the second bearing 14 to move towards the direction close to the transition surface d under the elastic force action of the adjusting spring 16, so that the second bearing 14 can be contacted with the transition surface d again, and thus, the second bearing 14 can be ensured to be in close contact with the transition surface d all the time.
Specifically, when each group of rolling gap eliminating assemblies is provided with a plurality of second bearings 14, correspondingly, a plurality of adjusting brackets 15 with the same number are also arranged, each second bearing 14 is connected to one adjusting bracket 15 in a one-to-one correspondence manner, and the adjusting brackets 15 are arranged at intervals along the length direction of the inner rail 11.
Specifically, one end of the adjusting spring 16 may be connected to the adjusting bracket 15, and the other end may be connected to the inner rail 11. When a plurality of the adjusting brackets 15 are provided, it is also possible to connect one end of the adjusting spring 16 to one adjusting bracket 15 and the other end to another adjusting bracket 15. In practice, both ends of the adjusting spring 16 may be connected to two adjacent adjusting brackets 15, or both ends of the adjusting bracket 15 may be connected to two alternate adjusting brackets 15.
More specifically, the adjustment spring 16 is in tension. The two adjusting brackets 15 connected to the same adjusting spring 16 and the two second bearings 14 connected thereto are referred to as an adjusting unit, and the rotation axes S1 of the two second bearings 14 of the adjusting unit are located between the rotation axes S2 of the two adjusting brackets 15.
In the exemplary embodiment, the rotational axis S2 of the adjustment bracket 15 is parallel to the rotational axis S1 of the second bearing 14 connected thereto, such that the outer circumference of the second bearing 14 contacts the transition surface d.
In the embodiment, the adjusting bracket 15 is an angle plate, and in detail, a first plate surface of the angle plate is parallel to the end surface of the second bearing 14, and the adjusting spring 16 is connected to a second plate surface of the angle plate, so that the arrangement is convenient. Of course, the structure of the adjusting bracket 15 is not limited thereto.
The sliding rail and the sliding rail assembly of the automobile seat provided by the invention with the rolling clearance-eliminating component are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A sliding rail with a rolling gap eliminating assembly is disclosed, wherein the sliding rail (1) comprises an outer rail (12) and an inner rail (11), a rail cavity (121) is formed in each of the two sides of the width direction of the outer rail (12), and the two sides of the width direction of the inner rail (11) are respectively positioned in the two rail cavities (121), and the sliding rail is characterized in that a group of rolling gap eliminating assemblies are respectively arranged in the two rail cavities (121); the rolling gap elimination assembly comprises:
a first bearing (13), the first bearing (13) being rotatably connected to the inner rail (11), the outer circumference of the first bearing (13) being in contact with the bottom surface (a) of the rail cavity (121);
a second bearing (14), wherein the second bearing (14) is rotatably connected with the inner rail (11), one end of the second bearing (14) close to the outer side surface (c) of the rail cavity (121) inclines towards the bottom surface (a) of the rail cavity (121), and the periphery of the second bearing (14) is in contact with a transition surface (d) between the top surface (b) and the outer side surface (c) of the rail cavity (121).
2. The slide rail of claim 1 wherein the rolling anti-lash assembly further comprises:
an adjusting bracket (15), wherein the adjusting bracket (15) is rotatably connected with the inner rail (11), and the second bearing (14) is rotatably connected with the adjusting bracket (15);
an adjusting spring (16), wherein the adjusting spring (16) is connected to the adjusting bracket (15) to apply a rotating moment to the adjusting bracket (15), so that the adjusting bracket (15) drives the second bearing (14) to be closer to the transition surface (d).
3. The slide rail of claim 2, wherein the rolling clearance elimination assembly comprises a plurality of the second bearings (14) and an equal number of the adjustment brackets (15), the second bearings (14) are connected to the adjustment brackets (15) in a one-to-one correspondence, and the adjustment brackets (15) are arranged at intervals along the length direction of the inner rail (11).
4. A sliding rail according to claim 3, characterized in that the adjustment spring (16) is connected at one end to one of the adjustment brackets (15) and at the other end to the other adjustment bracket (15).
5. The slide rail according to claim 4, wherein two of said adjustment brackets (15) connected to the same adjustment spring (16) and two of said second bearings (14) connected thereto constitute an adjustment unit; the rotation shafts (S1) of the two second bearings (14) of the adjusting unit are located between the rotation shafts (S2) of the two adjusting brackets (15) thereof, and the adjusting spring (16) is in a stretched state.
6. The sliding track according to any of claims 2-5, wherein the adjustment bracket (15) is an angle plate, the first plate surface of the angle plate is parallel to the end surface of the second bearing (14), and the adjustment spring (16) is connected to the second plate surface of the angle plate.
7. The slide rail according to any one of claims 1 to 5, wherein the rolling gap elimination assembly comprises a plurality of first bearings (13), wherein a part of the first bearings (13) is arranged in the length direction of the inner rail (11) towards one end, the rest of the first bearings (13) are arranged in the length direction of the inner rail (11) towards the other end, and all of the second bearings (14) are arranged between the length direction of the inner rail (11) towards both ends.
8. The sliding rail according to any of claims 1 to 5, wherein the end of the second bearing (14) close to the outer side (c) of the rail cavity (121) is inclined at 45 ° to the bottom surface (a) of the rail cavity (121).
9. The slide rail according to any one of claims 1 to 5, wherein two sets of rolling gap elimination assemblies are symmetrically arranged relative to the inner rail (11), a connecting shaft (17) is welded to the inner rail (11), and two first bearings (13) which are symmetrical relative to the inner rail (11) are respectively connected to two ends of the same connecting shaft (17).
10. An automobile seat slide rail assembly, which comprises a slide rail, a locking mechanism for locking the slide rail, an unlocking mechanism for unlocking the slide rail, and an electric control mechanism for controlling the actions of the unlocking mechanism and the locking mechanism, and is characterized in that the slide rail is the slide rail (1) according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911056127.4A CN110626225A (en) | 2019-10-31 | 2019-10-31 | Slide rail and car seat slide rail assembly with roll clearance subassembly that disappears |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911056127.4A CN110626225A (en) | 2019-10-31 | 2019-10-31 | Slide rail and car seat slide rail assembly with roll clearance subassembly that disappears |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110626225A true CN110626225A (en) | 2019-12-31 |
Family
ID=68978634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911056127.4A Pending CN110626225A (en) | 2019-10-31 | 2019-10-31 | Slide rail and car seat slide rail assembly with roll clearance subassembly that disappears |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110626225A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114251357A (en) * | 2021-11-25 | 2022-03-29 | 上海延锋金桥汽车饰件系统有限公司 | Sliding mechanism |
| CN114537230A (en) * | 2020-11-24 | 2022-05-27 | 诺创汽车科技(上海)有限公司 | Manual seat slide rail assembly |
-
2019
- 2019-10-31 CN CN201911056127.4A patent/CN110626225A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114537230A (en) * | 2020-11-24 | 2022-05-27 | 诺创汽车科技(上海)有限公司 | Manual seat slide rail assembly |
| CN114251357A (en) * | 2021-11-25 | 2022-03-29 | 上海延锋金桥汽车饰件系统有限公司 | Sliding mechanism |
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