CN205059318U - Seat slide and be used for roller bearing of seat slide - Google Patents
Seat slide and be used for roller bearing of seat slide Download PDFInfo
- Publication number
- CN205059318U CN205059318U CN201520615910.0U CN201520615910U CN205059318U CN 205059318 U CN205059318 U CN 205059318U CN 201520615910 U CN201520615910 U CN 201520615910U CN 205059318 U CN205059318 U CN 205059318U
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- guiding surface
- roller guiding
- roller bearing
- noncontact
- seat slide
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Abstract
The utility model relates to a gliding seat slide of vehicle seat in order to adjust the seat to a roller bearing that uses in the seat slide is related to, wherein, the seat slide includes: the lower part track, it has lower part roller bearing guide surface, the upper portion track, it has upper portion roller bearing guide surface, and the roller bearing, it sets up between lower part and upper portion roller bearing guide surface, the roller bearing has the contact roll subtotal non -contact roll part that sets up alternately on axial direction, non -contact roll part has than the littleer diameter of contact roll part to not with lower part roller bearing guide surface and upper portion roller bearing guide surface contact. Consequently, the roller bearing changes into point contact or partial line contact with traditional line contact between the track to can reduce the overall contact surface between roller bearing and the track. In addition, can alleviate the vibration that is caused by rolling contact slides to can realize steady sliding motion.
Description
Technical field
The utility model relate to a kind of for seat with the seat slide of the slip of adjusting seat, and relate to a kind of roller bearing used in seat slide.
Background technology
As shown in fig. 1, according to traditional seat slide 10, lower tracks 11 and upper track 12 be couple to prevent being separated of lower tracks and upper track respectively by two end piece, to make upper track 12 can relative to lower tracks 11 longitudinal sliding motion back and forth.
In this case, lower tracks 11 has the lower roller guiding surface 13 at each side edge longitudinal extension.Correspondingly, upper track 12 has the upper roller guiding surface 14 at each side edge longitudinal extension.
Roller bearing 15 is between lower roller guiding surface 13 and upper roller guiding surface 14.The downside of roller bearing 15 is supported by lower roller guiding surface 13, and the upside of roller bearing 15 is supported by upper roller guiding surface 14, can roll to slide relative to lower tracks 11 for upper track 12 to make roller bearing 15.
But, according to traditional seat slide 10, because upper track 12 is slided repeatedly, be coated in lower roller guiding surface 13 come off brokenly with the paint on upper roller guiding surface 14 and be attached to roller bearing 15 contact track and/or surface, thus cause coarse surface.Therefore, upper track 12 can not be slided reposefully, but pitches.
This problem is caused by roller bearing 15 and the linear contact lay between lower roller guiding surface 13 and upper roller guiding surface 14.Linear contact lay produces the friction causing peeling paint.
This problem is also caused by the error of the plane precision of the track 11 and track 12 that comprise lower roller guiding surface 13 and upper roller guiding surface 14.
In FIG, reference number 16 represents retainer, for roller bearing 15 is remained on preposition place.
Utility model content
Therefore, the purpose of this utility model is to provide a kind of seat slide and the roller bearing for seat slide, the utility model can prevent the paint caused with repeatedly contacting of roller bearing due to track from coming off brokenly, and the defect of the slide caused due to the error of the plane precision of track can be prevented, thus realize sliding reposefully movement.
To achieve these goals, the utility model provides a kind of seat slide, and this seat slide comprises: lower tracks, and it has the lower roller guiding surface of longitudinal extension, upper track, it slides along lower tracks and has the upper roller guiding surface extended in parallel with lower roller guiding surface, and roller bearing, it is arranged between lower roller guiding surface and upper roller guiding surface, with lower roller guiding surface and upper roller guiding surface Contact and roll, thus support upper track is slided relative to lower tracks, wherein, described roller bearing has two or more touch scrolling parts and one or more noncontact rolling portion, touch scrolling part and noncontact rolling portion are alternately arranged in the axial direction, touch scrolling part and lower roller guiding surface and upper roller guiding surface carry out Structure deformation, and the diameter that noncontact rolling portion has is less than the diameter of touch scrolling part, do not contact with upper roller guiding surface with lower roller guiding surface to make noncontact rolling portion.
According to one side of the present utility model, touch scrolling part is formed as radial outstanding circular surface, to carry out point cantact with lower roller guiding surface and upper roller guiding surface.
According to one side of the present utility model, noncontact rolling portion has radial recessed circular surface.
According to one side of the present utility model, touch scrolling part has the radius of curvature less than noncontact rolling portion.
According to one side of the present utility model, noncontact rolling portion has cylindrical surface, and this cylindrical surface has predetermined radius.
According to one side of the present utility model, touch scrolling part has cylindrical surface, this cylindrical surface has the predetermined width on axial direction, contacts respectively to make touch scrolling part with lower roller guiding surface with upper roller guiding surface at the enterprising line of width.
According to one side of the present utility model, touch scrolling part has cylindrical surface and transitional surface, cylindrical surface has predetermined diameter to contact at the enterprising line of predetermined width with upper roller guiding surface with lower roller guiding surface in the axial direction, transitional surface extends from the axial end portion of cylindrical surface to be connected with noncontact rolling portion, and transitional surface has one in the surface of radial outstanding circular surface, the radial circular surface that is recessed into and axial taper.
To achieve these goals, the utility model additionally provides a kind of roller bearing for seat slide, and described seat slide comprises: lower tracks, and it has the lower roller guiding surface of longitudinal extension, upper track, it slides along lower tracks and has the upper roller guiding surface extended in parallel with lower roller guiding surface, and roller bearing, it is arranged between lower roller guiding surface and upper roller guiding surface, with lower roller guiding surface and upper roller guiding surface Contact and roll, slide relative to lower tracks to make roller support upper track, wherein, roller bearing has two or more touch scrolling parts and one or more noncontact rolling portion, touch scrolling part and noncontact rolling portion are alternately arranged in the axial direction, touch scrolling part and lower roller guiding surface and upper roller guiding surface carry out Structure deformation, and the diameter of noncontact rolling portion has less than the diameter of touch scrolling part, do not contact with upper roller guiding surface with lower roller guiding surface to make noncontact rolling portion.
According to above-mentioned seat slide of the present utility model and the roller bearing for seat slide, described roller bearing is divided into touch scrolling part and noncontact rolling portion, and only touch scrolling part and rail contact, thus between roller bearing with track, carry out point cantact or partial line contacts, this reduce the overall contact surface between roller bearing and track.
Therefore, vibration can be alleviated by point cantact or partial line contact and slide, and pulsation-free sliding motion can be realized.
In addition, even if the plane precision of track has a small amount of error, the reduction of the area of contact of this roller bearing also contributes to reducing the peeling paint of track as far as possible and the sliding motion of held stationary.
Accompanying drawing explanation
Fig. 1 is the section drawing of traditional seat slide;
Fig. 2 is the section drawing of the seat slide according to illustrative embodiments of the present utility model;
Fig. 3 is the expansion front elevation of the roller bearing of seat slide in fig. 2;
Fig. 4 a and Fig. 4 b is front elevation and the block diagram of the amplification of the modification of the roller bearing for seat slide according to illustrative embodiments of the present utility model respectively; And
Fig. 5 is the block diagram of the amplification of another modification of the roller bearing for seat slide according to illustrative embodiments of the present utility model.
Detailed description of the invention
As shown in Figure 2, according to the roller bearing 25 that the seat slide 20 of illustrative embodiments of the present utility model comprises lower tracks 21, upper track 22 and rolls between track 21,22.
Lower tracks 21 has the lower roller guiding surface 23 that longitudinal direction (penetration direction in Fig. 2) extends.Correspondingly, upper track 22 has the upper roller guiding surface 24 extended in parallel with lower roller guiding surface 23.
Roller bearing 25 is inserted between lower roller guiding surface 23 and upper roller guiding surface 24.The downside of roller bearing 25 contacts with lower roller guiding surface 23, and the upside of roller bearing 25 contacts with upper roller guiding surface 24.Therefore, roller bearing 25 rolls and supports upper track 22 to slide relative to lower tracks 21.
Especially, in this embodiment of the present utility model, roller bearing 25 has the touch scrolling part 26 and noncontact rolling portion 27 (with reference to Fig. 3) that alternately arrange in the axial direction.Touch scrolling part 26 carries out Structure deformation with lower roller guiding surface 23 and upper roller guiding surface 24.Noncontact rolling portion 27 has the diameter less than touch scrolling part 26, and does not contact with upper roller guiding surface 24 with lower roller guiding surface 23.
Therefore, when roller bearing 25 carries out rolling movement, roller bearing 25 is defined in touch scrolling part 26 with the part of rail contact.
As shown in Figure 3, touch scrolling part 26 is formed as outstanding circular surface, this surface outside upwards (that is, in radial directions) there is predetermined radius R.Therefore, when rolling, the outer end portion of circular surface and lower roller guiding surface 23 and upper roller guiding surface 24 carry out point cantact.
In figure 3, noncontact rolling portion 27 is arranged between touch scrolling part 26 in the axial direction, and noncontact rolling portion has cylindrical surface, and this cylindrical surface has predetermined diameter and has predetermined width W in the axial direction.
In figure 3, define four touch scrolling parts 26, comprise outmost touch scrolling part in the axial direction, and define three noncontact rolling portions 27.But the utility model is not limited to this quantity, but suitable quantity can be had if necessary.
According to this distortion of the shape of roller bearing 25, the linear contact lay rolling mechanism of traditional roller bearing (with reference to 15 in FIG) changes over multiple point cantact rolling mechanism by touch scrolling part 26.
Fig. 4 a and Fig. 4 b is the modification of the roller bearing according to illustrative embodiments of the present utility model.Roller bearing 35 has the noncontact rolling portion 37 between touch scrolling part 36.Touch scrolling part 36 is formed as the outstanding circular surface of radial convex.But noncontact rolling portion 37 is formed as the circular surface that radial spill is absorbed in.In this case, the radius of curvature r of touch scrolling part 36 is less than the radius of curvature (R with reference in figure 3) of touch scrolling part 26.
In addition, the radius of curvature r of touch scrolling part 36 is less than the radius of curvature R of noncontact rolling portion 37 '.
Fig. 5 is another modification of the roller bearing according to illustrative embodiments of the present utility model.Each touch scrolling part 46 of roller bearing 45 all has cylindrical surface 46a and transitional surface 46b, and cylindrical surface carries out linear contact lay by predetermined width W ' and track 21,22, and transitional surface is positioned at each axial end portion place of cylindrical surface 46a.
Transitional surface 46b is the connecting bridge between cylindrical surface 46a and noncontact rolling portion 47.In Figure 5, transitional surface 46b is formed as the outstanding circular surface of radial convex.
But, be not limited to the outstanding circular surface of this radial convex according to transitional surface of the present utility model, but the circular surface that radial spill is absorbed in can be had.Or transitional surface can have the conical surface tilted in the axial direction.
In another embodiment of the present utility model, touch scrolling surface 46 only has cylindrical surface 46a and does not have transitional surface 46b, to make cylindrical surface 46a adjacent with noncontact rolling portion 47.In this case, touch scrolling part and noncontact rolling portion all have cylindrical surface.
Although disclose illustrative embodiments of the present utility model, when not deviating from scope and spirit of the present utility model, various amendment, interpolation and replacement can be carried out.Therefore, above embodiment should be regarded as describing the utility model example, but not for limiting the utility model.
Claims (8)
1. a seat slide, is characterized in that, described seat slide comprises: lower tracks, and described lower tracks has the lower roller guiding surface of longitudinal extension; Upper track, described upper track is slided along described lower tracks and is had the upper roller guiding surface extended in parallel with described lower roller guiding surface; And roller bearing, described roller bearing is arranged between described lower roller guiding surface and described upper roller guiding surface, with described lower roller guiding surface and described upper roller guiding surface Contact and roll, so that upper track is slided relative to described lower tracks described in described roller support
Wherein,
Described roller bearing has two or more touch scrolling parts and one or more noncontact rolling portion, described touch scrolling part and described noncontact rolling portion are alternately arranged in the axial direction, described touch scrolling part and described lower roller guiding surface and described upper roller guiding surface carry out Structure deformation, and the diameter that described noncontact rolling portion has is less than the diameter of described touch scrolling part, do not contact with described upper roller guiding surface with described lower roller guiding surface to make described noncontact rolling portion.
2. seat slide according to claim 1, is characterized in that, described touch scrolling part is formed as radial outstanding circular surface, to carry out point cantact with described lower roller guiding surface and described upper roller guiding surface.
3. seat slide according to claim 2, is characterized in that, described noncontact rolling portion has radial recessed circular surface.
4. seat slide according to claim 3, is characterized in that, the radius of curvature that described touch scrolling part has is less than the radius of curvature of described noncontact rolling portion.
5. seat slide according to claim 1 and 2, is characterized in that, described noncontact rolling portion has cylindrical surface, and the described cylindrical surface of described noncontact rolling portion has predetermined radius.
6. seat slide according to claim 1, it is characterized in that, described touch scrolling part tool cylindrical surface, the described cylindrical surface of described touch scrolling part has predetermined width in the axial direction, contacts respectively to make described touch scrolling part with described lower roller guiding surface with described upper roller guiding surface at the enterprising line of the amount equaling this width.
7. seat slide according to claim 1, it is characterized in that, described touch scrolling part has cylindrical surface and transitional surface, described cylindrical surface has predetermined diameter, to contact at a predetermined enterprising line of width with described lower roller guiding surface and described upper roller guiding surface in the axial direction, described transitional surface extends from the axial end portion of described cylindrical surface to be connected with described noncontact rolling portion, and described transitional surface has radial outstanding circular surface, one in radial recessed circular surface and axioversion surface.
8. a roller bearing for seat slide, is characterized in that, described seat slide comprises: lower tracks, and described lower tracks has the lower roller guiding surface of longitudinal extension; Upper track, described upper track is slided along described lower tracks and is had the upper roller guiding surface extended in parallel with described lower roller guiding surface; And roller bearing, described roller bearing is arranged between described lower roller guiding surface and described upper roller guiding surface, with described lower roller guiding surface and described upper roller guiding surface Contact and roll, thus support described upper track and slide relative to described lower tracks
Wherein,
Described roller bearing has two or more touch scrolling parts and one or more noncontact rolling portion, described touch scrolling part and described noncontact rolling portion are alternately arranged in the axial direction, described touch scrolling part and described lower roller guiding surface and described upper roller guiding surface carry out Structure deformation, and the diameter that described noncontact rolling portion has is less than the diameter of described touch scrolling part, do not contact with described upper roller guiding surface with described lower roller guiding surface to make described noncontact rolling portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520615910.0U CN205059318U (en) | 2015-08-14 | 2015-08-14 | Seat slide and be used for roller bearing of seat slide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520615910.0U CN205059318U (en) | 2015-08-14 | 2015-08-14 | Seat slide and be used for roller bearing of seat slide |
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| Publication Number | Publication Date |
|---|---|
| CN205059318U true CN205059318U (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520615910.0U Active CN205059318U (en) | 2015-08-14 | 2015-08-14 | Seat slide and be used for roller bearing of seat slide |
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| CN (1) | CN205059318U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111225822A (en) * | 2017-10-17 | 2020-06-02 | 马自达汽车株式会社 | Seat sliding mechanism |
-
2015
- 2015-08-14 CN CN201520615910.0U patent/CN205059318U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111225822A (en) * | 2017-10-17 | 2020-06-02 | 马自达汽车株式会社 | Seat sliding mechanism |
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| GR01 | Patent grant |