JPH07187036A - Seat for vehicle and its incorporation method - Google Patents

Abstract

PURPOSE:To facilitate the work for positioning and fixing a seat to the floor of a car body and besides, materialize the automation of the seat incorporation method by robot easily. CONSTITUTION:In a seat for an automobile, a seat cushion part 14 is divided from a seat mounting member 20 equipped with a seat back 21, and this seat cushion part 14 is constituted capably of incorporation to the seat mounting member 20, and also the seat mounting member 20 is provided with a seat rail 30 and an aperture for work at the time of fixing this seat rail 30 to the floor 40 of the car body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat suitable for automating an assembling work by an industrial robot or the like and an assembling method thereof.

[0002]

2. Description of the Related Art In the prior art disclosed in, for example, Japanese Patent Application Laid-Open No. 63-68477, a seat, which is a finished product, is placed in a vehicle compartment and positioned at a predetermined position on the vehicle floor.
A seat rail provided on the lower surface of the seat is fixed to the vehicle floor with bolts. When this assembling work is automated by a robot, the seat cushion is gripped by the robot hand to perform the positioning of the seat, and the nut runner is tightened to fix the seat rail to the vehicle body floor.

[0003]

The positioning of the seat is to finally align the bolt insertion hole of the seat rail with the bolt fastening portion on the floor side of the vehicle body. The seat rail is located on the lower surface of the seat. Because I am doing
Accurate positioning is difficult. Also, the tightening work of the bolts for fixing the seat rail to the vehicle body floor must be performed in a narrow work space below the seat. If you want to automate the work of assembling the sheet,
As in the above publication, the robot hand must grip the seat cushion portion. This means that a very unstable element such as the pad molding accuracy of the seat cushion portion affects the seat positioning accuracy, which makes accurate positioning difficult. On the other hand, the bolt fastening portion on the vehicle body floor side for fixing the seat rail is restricted to only a portion where the nut runner of the robot can enter while avoiding the seat cushion portion.

The problem to be solved by the present invention is to divide the seat cushion portion from the seat mounting member, and to mount the seat mounting member in a state where the seat cushion portion is not assembled to the vehicle body floor, whereby The purpose is to facilitate the work for positioning and fixing the seat, and also to easily realize the automation of the seat assembling work by the robot.

[0005]

In order to solve the above-mentioned problems, the vehicle seat of the present invention is constructed as follows. That is, the seat cushion portion is divided from a seat mounting member having a seat back, and the seat cushion portion is configured to be assembled to the seat mounting member, while the seat mounting member includes a seat rail and the seat rail. And an opening for working when the vehicle is fixed to the vehicle floor. Further, in the method for assembling the vehicle seat configured as described above, the seat mounting member in a state where the seat cushion portion is not assembled is placed at a predetermined position on the vehicle body floor by using the opening for working. The seat rail may be positioned and fixed to the vehicle body floor, and then the seat cushion portion may be assembled to the seat attachment member.

[0006]

According to this structure, the seat mounting member can be mounted on the vehicle body floor without the seat cushion portion being assembled. At this time, the seat opening member is used for the seat on the vehicle body floor. It is easy to position the mounting member or fix the seat rail to the vehicle body floor. After this work is completed, the seat cushion portion is assembled to the seat mounting member. When the seat assembly work is automated, the seat mounting member can be grasped in a stable state by clamping it with a robot hand, and the seat mounting member is accurately positioned with respect to the vehicle body floor. In addition, the work of bolting the seat rail to the floor of the vehicle body with a nut runner of a robot or the like becomes easy.

[0007]

Embodiments of the present invention will now be described with reference to the drawings. Fig. 1 shows a vehicle seat 10 (front seat)
Is shown in a side view, and its front view is shown in FIG.
As is apparent from these drawings, the seat 10 includes a seat mounting member 20 having a seat back 21, and
Is divided into a seat cushion portion 14 indicated by a virtual line. The seat mounting member 20 is provided with adjuster portions 2 arranged on both left and right sides of the seat cushion portion 14.
2 and a cushion pan 24 that connects them to each other. The adjuster portion 22 and the seat back 21 are connected so that the seat back 21 can be adjusted for reclining, as is well known.

A seat rail 30 is provided on the lower surface of each of the adjuster portions 22, which is a component of the seat mounting member 20. Mounting pieces 32 and 36 are fixed to the seat rails 30 on the front lower surface and the rear lower surface, respectively. on the other hand,
A bolt fastening portion 44 for fastening the attachment pieces 32 and 36 of both seat rails 30 with bolts 38 is formed on the side of the vehicle body floor 40. Further, as is apparent from FIG. 2, the reference points for accurately positioning the seat 10 with respect to the vehicle body floor 40 are provided at the corresponding positions of the front mounting pieces 32 and the vehicle body floor 40 on both the seat rails 30. The holes 33 and 42 are opened. That is, by making these reference holes 33 and 42 coincide with each other, the seat 10 (seat mounting member 2
The mounting position of 0) will be properly determined.

FIG. 3 shows a plan view of FIG. As is apparent from this drawing, on the front side of the cushion pan 24, which is a constituent member of the seat mounting member 20, working openings 25 are formed at two locations corresponding to the mounting piece 32, and Cushion pan 2
On the rear side of 4, a work opening 26 is similarly formed over a wide range including a portion corresponding to the other both mounting pieces 36. Further, the cushion pan 24 has engagement holes 27, 2 for assembling the seat cushion portion 14.
Two 8 are formed on each of the front side and the rear side.

FIG. 4 is a side view showing the seat cushion portion 14. As shown in this drawing, the seat cushion portion 14 has a front-side engaging member 15 and a rear-side engaging member 16, respectively, by bending a wire as a component inside the seat cushion portion 14 so as to project from the lower surface. Two left and right are formed. These engaging members 15 and 16 are the engaging holes 27 and 2 formed in the cushion pan 24.
It corresponds to the positions of 8 respectively. The engagement member 15 on the front side has a cushion pan 24 as shown in FIGS. 5A and 5B after the grommet 18 shown in FIG. 4 is attached thereto.
Is inserted into the engagement hole 27 on the front side. Further, the rear side engagement member 16 is inserted into the rear side engagement hole 28 as shown in FIGS. Regarding the procedure for assembling the engagement members 15 and 16, first, the rear engagement member 16 is inserted into the engagement hole 28 obliquely from the front, and then the front engagement member 15 (grommet 18). The engaging hole 2
Insert from above in 7. As a result, the seat cushion portion 14 is assembled to the seat mounting member 20.

In this embodiment, the seat 10 constructed as described above is put into the vehicle compartment at a predetermined assembling station by the robot shown in FIGS. 7 to 9 and assembled to the vehicle body floor 40. . Therefore, the robot and its function will be explained. 7 to 9 are views showing the seat 10 shown in FIGS. 1 to 3 together with a robot. As shown in these drawings, the robot hand 52 provided at the tip of the robot arm 50 is
A pair of front and rear clamps 54 are provided below the hand bracket 53. By driving an actuator 56 (hydraulic cylinder or the like) shown in FIG. 8, the clamp 54 is operated through a link mechanism 55 shown in FIG. 7 to a state shown by a solid line or a virtual line in this drawing. ing.

The hand bracket 53 is provided with reference pins 58 projecting downward as shown in FIG. Elevating members 60 are provided on the left and right sides of the hand bracket 53 so as to be movable up and down with respect to the hand bracket 53 by respective guides 61. Nut runners 62 and 64 are provided on the upper surface of these lifting members 60 on the front side and the rear side, respectively, and both lifting members 60 are mounted on the nuts by a rodless lifting cylinder 68 shown in FIG. The runners 62 and 64 move up and down.

The seat 10 includes the seat cushion portion 14
Is sent to the assembling station with only the seat attaching member 20 not attached, and the cushion pan 24 which is a constituent member of the seat attaching member 20 is gripped by the robot hand 52. That is, after the clamp 54 of the robot hand 52 is inserted into the lower surface of the cushion pan 24 through the opening 26 in the unclamped state shown by the phantom line in FIG. 7, the clamp 54 is moved by the actuator 56 in the solid line in FIG. The sheet mounting member 20 is gripped in the clamped state shown by. At this time, the reference pin 58 of the robot hand 52 is connected to the reference holes 3 of the two mounting pieces 32 on the front side of the seat rail 30.
The sheet mounting member 20 and the robot hand 52 are accurately positioned by inserting into the sheet. In this state, the robot arm 50 is operated to insert the seat mounting member 20 into the vehicle compartment through the door opening of the vehicle.

Seat mounting member 20 inserted into the vehicle compartment
Is further positioned with respect to the vehicle body floor 40 together with the robot hand 52 by further inserting the reference pin 58 into the reference hole 42 of the vehicle body floor 40 (see FIG. 8). Therefore, the mounting pieces 32 and 36 of the seat rail 30 in this state are accurately positioned with respect to the bolt fastening portion 44 of the vehicle body floor 40. Therefore, the lifting member 60 provided with the nut runners 62, 64
By operating as described above, the respective sockets 63, 63 of these nut runners 62, 64 are
65 is advanced (lowered) through the openings 25 and 26 of the cushion pan 24. And the nut runner 62,
By driving 64, the bolts 38 preset in the sockets 63, 65 are tightened from the mounting pieces 32, 36 side of the seat rail 30 to the bolt fastening portions 44 of the vehicle body floor 40, respectively. As a result, the seat mounting member 20 is accurately assembled to the vehicle body floor 40 at a predetermined position.

After the seat mounting member 20 has been assembled as described above, the robot hand 52 is moved out of the passenger compartment by the operation of the robot arm 50, and the vehicle body is carried out from the assembly station. After this,
The seat cushion portion 14 with respect to the seat mounting member 20.
The sheet 10 is completed by assembling according to the procedure described above.

By assembling the seat cushion portion 14 after the seat mounting member 20 is mounted on the vehicle body floor 40 in this manner, restrictions on the position setting of the bolt fastening portion 44 are reduced, and the position setting considering appearance is taken into consideration. It will be possible. Further, in this embodiment, since the seat cushion portion 14 after assembly is detachable from the seat mounting member 20, the work of connecting the wiring connector such as the power seat and the seat heater on the lower surface of the seat 10 is performed by the seat cushion portion 14 described above. It can be easily done by removing. Further, only the seat cushion portion 14 can be replaced, which is economical.

[0017]

According to the present invention, the work for positioning and fixing the seat with respect to the floor of the vehicle body is facilitated, and the seat assembly work by the robot can be easily realized.

[Brief description of drawings]

FIG. 1 is a side view of a vehicle seat.

FIG. 2 is a front view of FIG.

FIG. 3 is a plan view of FIG. 1.

FIG. 4 is a side view showing only a seat cushion portion.

FIG. 5 is an enlarged configuration diagram showing a mounting portion on one side of a seat cushion portion and a cushion pan.

FIG. 6 is an enlarged configuration diagram of a mounting portion on the other side of the seat cushion portion and the cushion pan.

FIG. 7 is a side view showing the seat shown in FIG. 1 together with a robot.

FIG. 8 is a front view showing the seat shown in FIG. 2 together with a robot.

9 is a plan view showing the seat shown in FIG. 3 together with a robot.

[Explanation of symbols]

 14 seat cushion portion 20 seat mounting member 21 seat back 25, 26 opening portion 30 seat rail 40 vehicle body floor

Claims (2)

[Claims] 1. A seat cushion portion is divided from a seat mounting member having a seat back, and the seat cushion portion is configured to be assembled to the seat mounting member, while the seat mounting member includes a seat rail and a seat rail. ,
A vehicle seat having an opening for working when fixing the seat rail to a vehicle body floor. 2. The method for assembling the vehicle seat according to claim 1, wherein the seat mounting member in a state where the seat cushion portion is not assembled is utilized by using an opening for working the vehicle body floor. The seat rail is fixed to the predetermined position, the seat rail is fixed to the vehicle body floor, and then the seat cushion portion is assembled to the seat mounting member.