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Sliding device for vehicle and rolling element circulation unit used for the sliding device

A rolling element and sliding device technology, which is applied to vehicle components, special positions of vehicles, vehicle seats, etc., can solve the problems of reduced rolling performance of rolling element circulation units and other issues

Inactive Publication Date: 2015-09-30
AISIN SEIKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the rolling performance of the rolling element circulation unit may decrease due to the above-mentioned variation in precision of each track

Method used

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  • Sliding device for vehicle and rolling element circulation unit used for the sliding device
  • Sliding device for vehicle and rolling element circulation unit used for the sliding device
  • Sliding device for vehicle and rolling element circulation unit used for the sliding device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0033] will refer to Figure 1 to Figure 5 The first embodiment will be described.

[0034] like Figure 1 to Figure 3 As shown in , the sliding device for a vehicle includes a pair of lower rails (left and right lower rails) 10 serving as first rails, upper rails (left and right upper rails) 20 serving as second rails, and a ball circulation unit serving as a rolling element circulation unit. Unit 40. The pair of lower rails 10 are fixed to the vehicle floor 100 and fixed to extend in the longitudinal direction of the vehicle. The pair of upper rails 20 is fixed to the vehicle seat 101 and is movably supported relative to the pair of lower rails 10 . The ball circulation unit 40 is attached to the attachment portion 21 formed at the upper rail 20 .

[0035] like Figure 4 As shown in , each lower rail 10 includes a bottom 11, a side 12 and a folded portion 13, the bottom 11 is formed parallel to the vehicle floor 100, the side 12 extends upwards from both ends of the bot...

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PUM

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Abstract

A slide apparatus for a vehicle includes first and second rails (10, 20) and a rolling element circulation unit (40) including first and second cases (41, 42) and a plurality of rolling elements (43) accommodated within a receiving portion that includes first and second annular receiving portions (41 b) accommodating the rolling elements annularly arranged in a rolling and circulating manner. The second case includes elongated bores (42d) connected to the first and second annular receiving portions in a state where the second case is mounted at the second rail. A portion of the rolling elements is exposed from the elongated bores while being inhibited from disengaging from the elongated bores. The rolling elements exposed from the elongated bores make contact with an operating surface (12b) of the first rail and inner surfaces of the first and second annular receiving portions, and roll and circulate in association with a relative movement between the first and second rails.

Description

technical field [0001] The present disclosure generally relates to a sliding device for a vehicle and a rolling element circulation unit for the sliding device. Background technique [0002] For example, JP9071157A (hereinafter referred to as reference 1) discloses a known seat sliding device for a vehicle. A seat sliding device disclosed in Reference 1 includes a lower rail fixed to a vehicle floor and an upper rail slidably engaged with the lower rail and attached to a vehicle seat. The upper track includes a plate-shaped first upper track and a plate-shaped second upper track stacked on the first upper track. In addition, a bracket is provided between the first and second upper rails to rotatably support the metal rollers relative to the lower rail. The upper rail can accordingly move smoothly in the longitudinal direction of the vehicle along the lower rail. In addition, the upper rail is formed with a minimum length for supporting a vehicle seat, and the lower rail i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60N2/07B60N2/90
CPCB60N2/0715B60N2/0705
Inventor 山田幸史矶部晋也
Owner AISIN SEIKI KK