JPH0415541Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a position adjustment device applied to an automobile seat.

Conventional technology In order to obtain the optimal driving position, conventional automobile seats have a reclining seat back that tilts back and forth, a seat lifter that adjusts the height of the seat, and the entire seat device that moves in the longitudinal direction of the vehicle. It was equipped with a seat slide adjustment device, etc. In addition, some cars had deluxe seat cushions to absorb car vibrations and shocks.

On the other hand, since various equipment such as seats are installed in the limited interior space of a vehicle, the interior space becomes narrower and there is a risk that it may become difficult to ensure comfortable living. It was hot.

Problems that the invention aims to solve Therefore, in the past, in order to obtain the optimal driving position in the front seat, there were some seats that could be adjusted by sliding them slightly forward and backward, but it was difficult to adjust the seat position by changing the direction of the seat. There was no attempt to make effective use of the interior of the vehicle and improve livability.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a vehicle seat position adjustment device that allows the seat to be freely moved back and forth and left and right.

Means for Solving the Problems In order to solve the above problems, the present invention is arranged between a seat and a floor, and is rotatable so that the upper end of the vertical side is connected to the seat and the upper end of the horizontal side is connected to the floor. at least three L-shaped arms having the same shape and supported by at least three L-shaped arms having the same shape; a hole drilled in the horizontal end portion and through which the shaft portion of the headed pin is inserted; at least two guide rails each having a mounting portion on which the horizontal edge end is placed; a nut screwed onto the threaded portion of the pin; Each of the guide rails has an insertion groove for inserting the shaft part in the mounting part thereof, and a guide groove for accommodating the head part below the insertion groove. and further forming tooth portions that mesh with each other on the upper surface of the head, the lower surface of the mounting portion facing the upper surface of the head, and the lower surface of the washer and the upper surface of the horizontal edge portion facing the lower surface of the washer, respectively; The gist is that the arm is configured to rotate around the pin and move along the guide rail by releasing the engagement between the teeth only when the nut is tightened. It is something.

Effect: According to the above means, when the nut is tightened, the seat can be positioned and fixed with respect to the floor.
When the nut is loosened, the seat rotates via each L-shaped arm, and the seat before and after this rotation can be rotated parallel to the floor, and can also slide forward and backward in the vehicle along the guide rail. As a result, the seat can be moved freely forward, backward, left and right. The seat can then be fixed at a desired position by tightening the nut.

Embodiment An embodiment of the device of the present invention will be explained based on FIGS. 1 to 5. Reference numeral 1 generally indicates the seat device, 2 the seat cushion (hereinafter referred to as the seat), and 3 the vehicle body. The floor 4 is four L-shaped arms having the same shape that are arranged between the seat 2 and the floor 3, the upper end of the vertical side 4a is connected to the seat 2, and the end of the horizontal side 4b is connected to the floor. 3, each of which is rotatably supported by two guide rails 5, which will be described later, and which are laid parallel to each other. Also, each L
The arrangement of the support points of the letter-shaped arm 4 with respect to the guide rail is preferably set to be a parallelogram link arrangement, but it goes without saying that such an arrangement is not particularly necessary. Horizontal side 4b
A hole 8 is formed at the end of the pin member 6 to allow a shaft portion 7 of a pin member 6 (hereinafter referred to as a pin) to be inserted therethrough. This pin 6 consists of a head 9 and a threaded portion 10 formed in the upper half of the shaft portion 7. 11 is threaded part 1
0, and the horizontal side 4b
A washer 12 fitted onto the shaft portion 7 is interposed between the end portion and the end portion. On the other hand, the guide rail 5 interposed between the end of the horizontal side 4b and the floor 3
It has a placing part 13 on which b is placed, and the placing part 13
An insertion groove 14 through which the shaft portion 7 is inserted is formed along the axial direction of the rail 5. In addition, insertion groove 1
4. Below is a guide groove 15 for accommodating the head 9 of the pin 6.
is provided. The outer diameter of the head 9 is the insertion groove 1.
Because it is formed larger than the width of 4, the head 9
will not be pulled out from the guide groove 15.

Now, teeth portions that mesh with each other are formed on the upper surface 16 of the head 9, the lower surface 17 of the mounting portion 13 opposing this, and the lower surface of the washer 12 and the upper surface of the end of the horizontal side 4b opposing this. There is.

Next, the operation of the above embodiment will be explained.

As clearly shown in FIG. 3, when the nut 11 is tightened on the threaded portion 10, the horizontal side 4b is clamped and fixed between the nut and the guide rail 5 via the washer 12 due to the tightening force. Relative displacement between these surfaces is restrained by the meshing of the teeth formed on the upper surface of the head 9 and the lower surface of the mounting part 13, and on the lower surface of the washer 12 and the upper surface of the end of the horizontal side 4b. Therefore, each L-shaped arm 4 does not rotate around the pin 6, and the pin itself is restrained from moving along the guide groove 15 of the guide rail 5, and the seat device 1 maintains its position. I will do it.

On the contrary, when adjusting the position of the seat 2 by loosening the nut 6, the meshing of the teeth on each of the surfaces is temporarily released. Therefore, the frictional force between the contact parts of the head 9 and the mounting part 13, the end of the horizontal side 4b and the washer 12, and the same end and the mounting part 13 is eliminated, and the pin 6 is moved against the guide groove 15. It can be moved along the insertion groove 14 to a desired position, and the L-shaped arm 4 can be rotated at a desired angle around the pin. and,
By tightening the nut 11 onto the threaded portion 10 again, the L-shaped arm 4 is positioned and fixed to the guide rail 5 via the pin 6.

In this way, when two pairs of guide rails 5 are laid on the floor 3, as clearly shown in FIG. 5, the distance between the front and rear seats is adjusted by sliding the seat device 1 along the guide rails in the longitudinal direction of the vehicle. Moreover, since the seat can be rotated about the pin 6, the distance between the left and right seat devices can be adjusted by moving the seat before and after this rotation in parallel. For this reason,
Depending on the situation and your preferences, you can either ensure sufficient distance between the front and rear seats to provide more legroom, or you can ensure sufficient distance between the left and right seats so that you can sit comfortably. It is.

In addition, in the above embodiment, four arms were supported by two guide rails, but this L
If there are at least three or more letter-shaped arms, the same effect as described above can be obtained. Further, the number of guide rails may be changed as appropriate depending on the number of L-shaped arms.

Further, in the above embodiment, a case has been described in which the guide rail is laid on the floor surface, but the guide rail may be buried so that the mounting portion 13 of the guide rail is flush with the surface of the floor 3.

Effects of the invention According to the invention, the seat device can be moved in parallel by rotating the L-shaped arm, and can also be moved in the front and back directions, so the seat can be arranged according to the situation and preference. This has the practical effect of making it possible to effectively utilize the narrow interior space of the vehicle and improving the comfort of the vehicle.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing how the seat is mounted in the vehicle interior according to an embodiment of the present invention, Fig. 2 is an enlarged perspective view of the main part showing the mounting structure of the L-shaped arm, and Fig. 3 is the L-shaped arm. Fig. 4 is an external view showing the seat attached to a pair of guide rails laid on the floor, Fig. 5 is an enlarged sectional view of the main parts showing the floor mounting structure of the FIG. 4 is a layout diagram showing an example of seat position adjustment in the case where the seats are adjusted. 2... Seat, 3... Floor, 4... L-shaped arm, 4a... Vertical side, 4b... Horizontal side, 5...
Guide rail, 6... pin, 8... hole, 9... head, 11... nut, 12... washer, 13...
...Placement section, 15...Guide groove.

Claims (1)

[Scope of utility model registration request] at least three L-shaped arms having the same shape, disposed between the seat and the floor, the upper end of the vertical side being rotatably supported by the seat, and the end of the horizontal side being rotatably supported by the floor; a hole drilled in the horizontal side edge through which the shaft of the headed pin is inserted; at least two holes extending in the longitudinal direction of the vehicle on the floor and having a mounting part on which the horizontal side edge is placed; a guide rail, a nut screwed into the threaded portion of the pin, and a washer inserted over the threaded portion of the pin and held between the nut and the horizontal edge, each of the guide rails having , an insertion groove through which the shaft part is inserted into the mounting part,
Further, guide grooves for accommodating the head are formed below the insertion groove, and further, the upper surface of the head and the lower surface of the mounting portion facing the upper surface of the head, and the lower surface of the washer facing the lower surface of the washer. Teeth that engage with each other are formed on the upper surface of the horizontal edge, and the engagement between the teeth is released only when the nut is tightened, so that the arm rotates about the pin, and A vehicle seat position adjustment device characterized in that it is configured to be movable along a guide rail.