JP2005014670A - Seat device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate complication of a mounting work of a seat device on a vehicle by maintaining the attitude of a seat when performing the mounting work. <P>SOLUTION: This device is provided with a supporting member 43 rolling-connected to a link mechanism 4 to regulate the attitude of the link mechanism 4 and fixing the link mechanism 4 to a vehicle floor 11. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seat device for a vehicle, and more particularly to a structure of a seat device that can be stored in a storage portion formed on a vehicle body floor when the seat is not used.
[0002]
[Prior art]
A seat device configured to store a seat in a storage recess formed in a vehicle floor when the seat is not in use includes a link mechanism that supports a cushion portion serving as a seat seat on the vehicle floor, and the posture of the seat Is controlled so that it can be folded and stored, and the user can move it to the storage recess to enable storage. (For example, refer to Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 11-48840
[Problems to be solved by the invention]
However, in the seat device having such a configuration, the posture of the link mechanism is not specified until the seat device is attached to the vehicle, and the link device is supported on the floor of the vehicle while supporting the seat device to move freely. It was very complicated because it was necessary to tighten with bolts.
[0005]
The subject of this invention makes it a subject to maintain the attitude | position of a link mechanism at the time of the attachment operation | work to the vehicle of a seat apparatus, and eliminate the complexity of an attachment operation | work.
[0006]
[Means for Solving the Problems]
In order to solve the above-described problems, the first technical means taken in the present invention is to support a seat back as a backrest portion, a seat cushion as a seating portion, and the seat cushion on a vehicle floor. A seat device comprising: a link mechanism; and a drive device that drives the link mechanism and moves the seat cushion between a seating position and a storage position. The seat device is coupled to the link mechanism so as to define a posture of the link mechanism and the link It is configured to include a support member that fixes the mechanism to the vehicle floor.
[0007]
With this configuration, the posture of the link mechanism is defined by the support member even before being attached to the vehicle floor.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the sheet apparatus 1 according to the present invention will be described with reference to FIGS.
[0009]
As shown in FIG. 1, the seat device 1 includes a seat back 2 and a seat cushion 3.
[0010]
As further shown in FIG. 2, the seat cushion 3 includes cushion side frames 31 on the left and right. The left and right cushion side frames 31 extend substantially horizontally in the forward direction (left direction in FIGS. 1 and 2), and the front end portions thereof are connected by a hollow front connection pipe 32 to ensure the strength of the seat cushion 3. ing.
[0011]
Projecting portions 31 a extending upward are formed at the rear ends of the left and right cushion side frames 31. A known angle adjusting mechanism 18 incorporating a pair of left and right planetary gear mechanisms (not shown) is attached to the protruding portion 31a. A back side frame 21 of the seat back 2 is attached to the angle adjustment mechanism 18. The left and right angle adjusting mechanisms 18 are connected by an interlocking rod 24 and are operated in conjunction with each other. A second drive device 68 that drives the angle adjustment mechanism 18 is attached to one side of the backside frame 21. The second drive device 68 has the same configuration as the first drive device 61 described later, and includes a motor and a speed reduction mechanism. The tilt angle of the seat back 2 can be adjusted by operating the second driving device 68 and driving the planetary gear mechanism of the angle adjusting mechanism 18. Further, the back side frames 21 arranged on the left and right sides of the seat back 2 are connected to each other by upper connection pipes 23 at the upper end portions, thereby ensuring strength.
[0012]
Further, as shown in FIGS. 1 and 2, the seat device 1 includes a link mechanism 4 attached to the lower side of the cushion side frame 31. The link mechanism 4 includes a pair of front links 41 disposed on the left and right of the front side of the seat device 1 and a pair of rear links 42 disposed on the left and right of the rear. The left and right front links 41 are arranged on the outer sides in the width direction of the cushion side frames 31, and the upper ends thereof are connected by a rotating shaft 41a that extends through the hollow front connecting pipe 32 and are interlocked with each other. . On the other hand, the rear link 42 is disposed on the inner side in the width direction of each cushion side frame 31 and is coupled to the rear connection pipe 33 at its upper end portion so as to interlock with each other. The rear link 42 is rotatably supported on the cushion side frame 31 by a rotation shaft 42 a inserted into the rear connection pipe 33.
[0013]
As shown in FIG. 2, the rear link 42 extending substantially straight is formed in a bent shape and extends below the front link 41. The front link 41 and the rear link 42 are connected by a pair of left and right support brackets 43 (support members) that extend in the front-rear direction at the lower end portion. The support bracket 43, the front link 41, and the rear link 42 are rotatably coupled by rotating shafts 41b and 42b. With this configuration, as shown in FIG. 2, the front link 41 and the rear link 42 are connected to each other and interlocked when the seat device 1 is not attached to the vehicle floor 11. As will be described later, the support bracket 43 is formed into a bent shape along the shape of the uneven floor 11, and is fixed to the floor 11 with bolts (not shown) at the mounting holes 43a and 43b. The support bracket 43 thus attached can act as a reinforcing member for the floor 11. Then, when an excessive load of the seat device 1 is transmitted to the floor 11 at the time of a vehicle collision, the deformation of the floor 11 can be reduced.
[0014]
Further, as shown in FIGS. 2 and 3, the first drive mechanism 61 is attached to the inner side in the width direction of the seat 1 on one side of the cushion side frame 31. The first drive mechanism 61 includes a motor 62 and a speed reduction mechanism 63 and rotates the pinion 64. A gear 65 is fixedly attached to the rotation shaft 41a on the outer side in the seat 1 width direction of one cushion side frame 31, and the gear 65 extends outward through a hole (not shown) provided in the cushion side frame 31. Engages with pinion 64. With this configuration, the first drive mechanism 61 can be operated to rotate the front link 41 with respect to the cushion side frame 31. Further, when the first drive mechanism 61 is stopped, the rotation of the front link 41 with respect to the cushion side frame 31 is restricted.
[0015]
The link mechanism 4 has a so-called four-link configuration in which the front link 41 and the rear link 42 include an upper cushion side frame 31 and a support bracket 43, which are coupled to each other via a rotation shaft. As shown in FIG. 1, the floor 11 includes a storage recess 12 formed so as to be recessed from the general floor surface behind the seat device 1. The front end portion of the support bracket 43 that supports the rotary shaft 41 b that supports the front link 41 is on the general floor surface, and the rear end portion of the support bracket 43 that supports the rotary shaft 42 b that supports the rear link 42 is the storage recess 12. It is installed so as to be located at the bottom. When the front link 41 is rotated by the operation of the first drive mechanism 61, the cushion side frame 31 maintains a substantially horizontal posture, and the front link 41 rotates to a position indicated by a two-dot chain line in FIG. It is.
[0016]
The operation of the first drive mechanism 61 and the second drive mechanism 68 described above is controlled by the control device 8 and the operation switch 9 wired to the first drive mechanism 61 and the second drive mechanism 68 as shown in FIG. Is done. Thus, the operation of the first drive mechanism 61 and the second drive mechanism 68 can be instructed by operating the operation switch 9.
[0017]
The operation of the seat device 1 configured as described above will be described below.
[0018]
When it is desired to adjust the tilt angle of the seat back 2 so that the seated person matches the seating posture, the angle adjustment switch 9a of the operation switch 9 is operated to operate the second drive mechanism 68, and the seat back 2 is moved forward or backward. Tilt to to adjust. Then, the second drive mechanism 68 is stopped and the adjustment position is maintained.
[0019]
When the sheet apparatus 1 is stored in the storage recess 12 and the floor 11 portion on which the sheet apparatus 1 is located is made a space where luggage can be loaded, the storage switch 9b of the operation switch 9 is operated to the storage side. The control device 8 operates the first drive mechanism 61. Then, the sheet apparatus 1 moves so as to be stored in the storage recess 12. At the same time, the control device 8 operates the second drive mechanism 68 so that the seat back 2 is folded onto the seat cushion 3. As a result, the sheet apparatus 1 is completely stored in the storage recess 12 indicated by a two-dot chain line in FIG. When returning from this storage state to the seating use state indicated by the solid line, the storage switch 9b is operated to the return set side.
[0020]
In this way, even when the seat device 1 moves between the stored state and the seated use state, the seat device 1 is maintained in a predetermined posture by the action of the link mechanism 4, so that the user can leave the seat device 1. Therefore, it is not necessary to support so as to share a part of the weight of the seat device 1. Moreover, it is possible to operate easily without requiring a complicated operation sequence.
[0021]
【The invention's effect】
According to the configuration of the present invention described above, since the link mechanism can be held at a predetermined position by stopping the drive device at a predetermined position even before the seat apparatus is fixed on the floor of the vehicle, the seat A predetermined posture of the apparatus can be maintained. When the seat device is placed on the floor in a predetermined position and tightened with a bolt or the like, the mounting hole position on the seat device side can be easily matched with the mounting position on the floor, and the trouble of the mounting work is eliminated.
[Brief description of the drawings]
FIG. 1 is a side view of a configuration of a seat device according to the present invention in perspective.
FIG. 2 is a perspective view showing a configuration of a seat device according to the present invention.
FIG. 3 is a partially enlarged view of FIG. 2;
FIG. 4 is a block diagram showing a control device for a seat device according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Seat apparatus 2 Seat back 3 Seat cushion 4 Link mechanism 11 Vehicle floor 43 Support member (support bracket)
61, 68 Drive mechanism (first drive mechanism, second drive mechanism)

Claims (1)

A seat back as a backrest,
A seat cushion as a seating part;
A link mechanism for supporting the seat cushion on the vehicle floor;
In a seat device including a drive device that drives the link mechanism and moves the seat cushion between a seating position and a storage position,
A seat device including a support member coupled to the link mechanism so as to define a posture of the link mechanism and fixing the link mechanism to the vehicle floor.

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