JP3633130B2 - Vehicle seat device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seat device mounted on a vehicle.
[0002]
[Prior art]
A conventional vehicle seat device is described in Japanese Utility Model Laid-Open No. 4-67530.
[0003]
The vehicle seat includes an upper rail attached to the seat, a lower rail slidably engaged with the upper rail, and a floor bracket connected to the lower rail and the rivet and fixed to the vehicle floor. An apparatus is disclosed.
[0004]
In the above prior art, when the lower rail is connected to the floor bracket, the rivet is inserted from above the lower rail through the narrow groove used for engaging the lower rail with the upper rail. In order to increase the fastening force between the lower rail and the floor bracket, which depends on the head area of the rivet when the rivet is caulked, the head must be smaller than the width of the groove. The width of the groove must be increased, leading to an increase in the length of the vehicle seat device.
[0005]
In addition, when a rivet is inserted and caulked from below the floor bracket, a caulking jig that holds the rivet tail must be inserted through the groove of the lower rail, so that a sufficient caulking area of the rivet tail is obtained. In order to achieve this, the width of the groove of the lower rail must be increased.
[0006]
[Problems to be solved by the invention]
An object of the present invention is to provide a compact vehicle seat device.
[0007]
[Means for Solving the Problems]
According to a first aspect of the present invention, in order to solve the above-described problem, an upper rail coupled to a seat cushion, a lower rail having the upper rail slidably engaged with the upper rail, and the upper portion having the opening . In a vehicle seat device including a floor bracket connected to the lower rail and a rivet and fixed to a vehicle floor, the lower rail is placed on the floor bracket, and a plate is placed on the lower rail. The vehicle seat device is characterized by caulking the rivet having a substantially oval head through the plate, the lower rail, and the floor bracket.
[0008]
According to the vehicle seat device according to the first aspect of the present invention, when the lower rail is fastened to the floor bracket, a wide area of the lower rail is pressed against the floor bracket by the plate, so that the width of the groove of the lower rail is increased. Without this, a sufficient fastening force between the lower rail and the floor bracket can be obtained. At that time, since the rivet head has a substantially oval shape, the rivet can be inserted without increasing the width of the opening of the lower rail.
[0011]
According to a second aspect of the present invention, there is provided a vehicle seat device that satisfies the first aspect, wherein a handle is formed at one end of the plate.
[0012]
According to the vehicle seat device according to the means described in claim 2 , since the handle is formed at one end of the plate, the workability when fastening the lower rail to the floor bracket is good.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, only the part showing the features of the present invention will be described with reference to the drawings.
[0014]
FIG. 1 is an external view of a vehicle seat device according to the present invention. In FIG. 1, a vehicle seat device includes a seat cushion 1, an upper rail 2 (FIG. 3) connected to the seat cushion 1, a lower rail 3 slidably engaged with the upper rail 2, and a lower rail 3. A floor bracket 4 fixed to the vehicle floor is provided.
[0015]
Here, as shown in FIG. 4, the lower rail 3 is provided with an opening 3 a for engaging with the upper rail 2 in the upper part, and the cross section thereof has an apple shape. Further, two fixing holes 3 c are provided in the bottom portion 3 b of the lower rail 3. Furthermore, the floor bracket 4 is also provided with two mounting holes 4a so as to correspond to the fixing holes 3c of the lower rail 3. The through hole 4b installed in the floor bracket 4 is used when the floor bracket 4 is attached to the vehicle floor.
[0016]
As shown in FIGS. 2 and 4, the lower rail 3 and the floor bracket 4 are joined by first placing the lower rail 3 on the floor bracket 4 and further on the bottom 3 b of the lower rail 3. Plates 5 having substantially oval through holes 5a are placed in two places. Although not necessarily limited to this, the width | variety of this plate 5 shall be below the width | variety of this opening part 3a so that the opening part 3a can be passed through from the upper part of the lower rail 3. FIG.
[0017]
Next, two rivets 6 each having a substantially oval head portion 6a and a shaft portion 6b are inserted through the opening 3a of the lower rail 3 from above, and the through holes 5a of the plate 5 The lower rail 3 is passed through the fixing hole 3c and the mounting hole 4a of the floor bracket 4 respectively.
[0018]
Thereafter, the tail 6c of the rivet 6 projecting downward from the mounting hole 4a of the floor bracket 4 is installed on a jig (not shown) so as to contact the jig, and the opening 3a of the lower rail 3 is inserted. In this manner, the punch (not shown) of the press device is lowered from above, the head 6a of the rivet 6 is pressed, and the tail 6c of the rivet 6 is deformed to be caulked.
[0019]
When the lower rail 3 and the floor bracket 4 are coupled to each other, two rivets 6 may be inserted in the through holes 5a of the plate 5 in advance, and the plate 5 and the two rivets 6 may be sub-assembled.
[0020]
According to the present invention, when the lower rail 3 and the floor bracket 4 are coupled, a wide range of caulking areas can be obtained by the plate 5, so that a sufficient fastening force between the lower rail 3 and the floor bracket 4 can be obtained. Can do.
[0021]
In addition, since the parts including the plate 5 relating to the connection between the lower rail 3 and the floor bracket 4 can be inserted from above, the opening 3a of the lower rail 3 can be inserted, so that the present invention can also be applied to automatic assembly.
[0022]
Further, as shown in FIG. 3, the plate 5 can also be used as a stopper for sliding the roller 7 interposed between the upper rail 2 and the lower rail 3.
[0023]
FIG. 5 shows a modified example of the plate 5 according to the present invention. In this embodiment, a protruding handle 5b is provided at one end of the plate 5, and the operator holds the handle 5b when the lower rail 3 and the floor bracket 4 are coupled. Thus, the plate 5 can be disposed and workability can be improved.
[0024]
In the above-described embodiment, when the rivet 6 is caulked, the head 6a is pressed. However, the present invention is not limited to this, and the tail 6c side of the rivet 6 may be pressed.
[0025]
【The invention's effect】
As described above, according to the present invention, a sufficient fastening force between the lower rail and the floor bracket can be obtained without enlarging the opening of the lower rail, so that the vehicle seat device can be made compact.
[Brief description of the drawings]
FIG. 1 is an external view of a vehicle seat device of the present invention. FIG. 2 is a partially exploded perspective view of a vehicle seat device of the present invention. FIG. 3 is a side view of a vehicle seat device of the present invention. FIG. 5 is a perspective view of a plate according to a second embodiment of the present invention.
1 seat cushion 2 upper rail 3 lower rail 4 floor bracket 5 plate 5b handle 6 rivet 6a head

Claims (2)

An upper rail coupled to the seat cushion, a lower rail having the upper rail slidably engaged in the opening , the upper rail having the opening , and a floor bracket coupled to the lower rail and the rivet and fixed to the vehicle floor The lower rail is mounted on the floor bracket, the plate is further mounted on the lower rail, and the rivet having a substantially oval head is disposed on the plate and lower rail. And a vehicular seat device that is caulked after passing through the floor bracket. The vehicle seat device satisfying claim 1, wherein a handle is formed at one end of the plate.

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