Vehicle seat support structure

Abstract

The present invention provides a vehicle seat support structure that can suppress deformation and damage when subjected to large loads, such as those experienced during a collision. [Solution] The seat support structure for a vehicle according to this disclosure is a seat structure for a vehicle having a seat surface that can swing along a curved rail, comprising a pair of guide rollers that contact the curved rail, and a cover provided outside the swinging direction of the guide rollers and covering the curved rail. When a large load is applied, such as during a collision, the curved rail is displaced greatly, but the cover contacts the curved rail and receives the load, thereby suppressing the amount of deformation and preventing damage to the swinging mechanism.

Description

Technical Field

[0001] The present disclosure relates to a seat support structure for a vehicle.

Background Art

[0002] Patent Document 1 below discloses a seat support structure for a vehicle that can move a seat to an optimal rocking position in the lateral and longitudinal directions without rotating it in the yaw direction.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When a large load such as during a collision is applied, a part (such as a roller) that guides the rocking will receive the large load, and there is a possibility that it will be greatly deformed or damaged. In the conventional technology, there is a possibility that it will be greatly deformed or damaged during a collision, and there is a possibility that the rocking will become impossible.

[0005] The present disclosure has been made to solve the above problems. An object of the present disclosure is to provide a seat support structure for a vehicle that can suppress deformation and damage when a large load such as during a collision is applied.

Means for Solving the Problems

[0006] The seat support structure for a vehicle according to the present disclosure is a vehicle seat structure having a seat surface that can rock along a curved rail, and includes a pair of guide rollers that contact the curved rail, and a cover that is provided outside the rocking direction of the guide rollers and covers the curved rail.

Effects of the Invention

[0007] This disclosure makes it possible to provide a vehicle seat support structure that can suppress deformation and damage when subjected to large loads, such as during a collision. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view showing the seat support structure of a vehicle according to Embodiment 1. [Figure 2] This is a front view of the seat support structure. [Figure 3] This is a front cross-sectional view of the seat support structure, cut at the center of the second curved rail. [Modes for carrying out the invention]

[0009] Embodiments will be described below with reference to the drawings. Common or corresponding elements in each drawing are denoted by the same reference numerals, and their descriptions are simplified or omitted. The configurations shown in the embodiments below are examples of the technical ideas related to this disclosure and can be combined with other known technologies, or multiple technical ideas described in this disclosure can be combined. Furthermore, it is possible to omit or modify parts of the configuration without departing from the gist of this disclosure.

[0010] Embodiment 1. Figure 1 is a perspective view showing a vehicle seat support structure 1 according to Embodiment 1. Figure 2 is a front view of the seat support structure 1. Figure 3 is a front cross-sectional view of the seat support structure 1 cut at the center of the second curved rail 5. As shown in Figure 1, the vehicle seat support structure 1 according to Embodiment 1 has a seat surface that can swing along the curved rail. The seat support structure 1 has a pair of rail support parts 2, a pair of arc-shaped first curved rails 3, a pair of rail support parts 4, and a pair of arc-shaped second curved rails 5. The seat surface is fixed to the second curved rail 5. The pair of rail support parts 2 are fixed to the floor of the vehicle. The first curved rail 3 is supported by the rail support parts 2. The first curved rail 3 is curved so that its upper surface is the inner circumference.

[0011] The rail support section 2 pivotably supports the first curved rail 3. The first curved rail 3 is movable longitudinally relative to the rail support section 2. The rail support section 2 has a pair of guide rollers 8 that contact the first curved rail 3 from below. In plan view, the first curved rail 3 is parallel in the front-rear direction. When the first curved rail 3 moves relative to the rail support section 2, the seat surface pivots in the front-rear direction.

[0012] The rail support sections 4 are fixed to both ends of a pair of first curved rails 3. The rail support sections 4 pivotably support the second curved rail 5. The second curved rail 5 is movable longitudinally relative to the rail support sections 4. The rail support sections 4 have a pair of guide rollers 6 that contact the second curved rail 5 from below. In plan view, the second curved rail 5 is parallel in the left-right direction. When the second curved rail 5 moves relative to the rail support sections 4, the seating surface pivots in the left-right direction. The second curved rail 5 is curved such that its upper surface is the inner circumference.

[0013] As shown in Figures 2 and 3, the rail support section 4 has a cover 7 that covers the second curved rail 5 from the front, back, top, and bottom. The cover 7 is located outside the guide roller 6 in the direction of oscillation. The direction of oscillation is the longitudinal direction of the second curved rail 5. The dashed line in Figure 2 is a straight line perpendicular to the second curved rail 5 at the point of contact between the guide roller 6 and the second curved rail 5. The area outside this dashed line corresponds to the outside in the direction of oscillation. The ellipses in Figures 2 and 3 mainly show the region outside the guide roller 6 in the direction of oscillation. In the region outside the guide roller 6 in the direction of oscillation, the cover 7 covers the second curved rail 5 from directions other than the direction of oscillation, namely the front-back and up-down directions.

[0014] In this embodiment, when a large load is applied, such as during a collision, the second curved rail 5 will be significantly displaced. However, the cover 7 contacts the second curved rail 5 and absorbs the load, thereby suppressing the amount of deformation and preventing damage to the oscillating mechanism. When no large load is applied, such as during a collision, the second curved rail 5 does not come into contact with the cover 7.

[0015] A cover similar to the cover 7 may be provided on the rail support section 2 that supports the first curved rail 3. This allows the cover to contact the greatly displaced first curved rail 3 and absorb the load when a large load is applied, such as during a collision, thereby suppressing the amount of deformation and preventing damage to the oscillating mechanism.

[0016] As shown in Figure 3, a pressing section 9 is provided opposite the guide roller 6, which uses the force of a spring to press the ball or roller against the upper surface of the second curved rail 5.

[0017] In this embodiment, a groove 10 is provided on the underside of the second curved rail 5. The guide roller 6 is in contact with the groove 10. As a result, even when a large load is applied, such as during a collision, the guide roller 6 is less likely to come off the second curved rail 5, thereby suppressing deformation and preventing damage to the oscillating mechanism. [Explanation of Symbols]

[0018] 1. Sheet support structure, 2. Rail support section, 3. First curved rail, 4. Rail support section, 5. Second curved rail, 6. Guide roller, 7. Cover, 8. Guide roller, 9. Pressing section, 10. Groove

Claims

1. In a vehicle seat structure having a seat surface that can swing along a curved rail, A pair of guide rollers in contact with the aforementioned curved rail, A cover is provided that is located on the outward side in the direction of oscillation from the guide roller and covers the curved rail, A vehicle seat support structure characterized by having the following features.

2. A groove is provided on the lower surface of the curved rail. The vehicle seat support structure according to claim 1, characterized in that the guide roller is in contact with the groove.

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