JP2547232B2 - Vehicle seat assembly method and device - Google Patents

Description

TECHNICAL FIELD The present invention relates to an apparatus for carrying in and assembling a seat including a seat cushion and a seat back, such as a rear seat of an automobile, into a passenger compartment.

(Prior Art) An apparatus disclosed in JP-A-59-97877 is known as a sheet assembling apparatus. In this device, a seat cushion is brought into contact with a frame member from a lower surface side and pressed from an upper surface side, and a seat back is pressed and sandwiched from a front side and a rear side to be carried into a vehicle interior.

However, the above-described device is carried into a vehicle interior with a seat cushion and a seat back attached thereto, and cannot be applied to a rear seat even if it can be applied to a front seat having a large door attachment opening.

Therefore, the present applicant has previously proposed the apparatus disclosed in Japanese Patent Application Laid-Open No. 62-255292. In this device, a seat cushion is fitted by a gripping means having a gripping surface in the form of a seat cushion, and is carried into a vehicle cabin and attached.

(Problems to be Solved by the Invention) The apparatus disclosed in Japanese Patent Laid-Open No. 62-255292 is to carry in and assemble a seat cushion and a seat back separately in a vehicle compartment, and therefore, in terms of work efficiency. There's a problem. On the other hand, even if you try to bring the seat cushion and the seat back into the passenger compartment at the same time, the vehicle body and the seat easily interfere with each other,
Especially when assembling the seat cushion and the seat back in the passenger compartment like a rear seat, it is difficult.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention comprises a seat assembling apparatus including a seat cushion assembling unit and a seat back assembling unit, and allows each of these units to operate independently. In the seat cushion assembly unit, the movable base is attached to the arch-shaped guide member, the swing arm is supported by the movable base, and the front portion of the seat cushion is gripped by the tip of the swing arm.

(Function) The seat cushion assembly unit and the seat back assembly unit grip the seat cushion and the seat back, carry them into the passenger compartment at the same time, and first retract the seat back upward to assemble the seat back to the vehicle body. Then, the seat cushion assembly unit is retracted and the seat back is assembled to the vehicle body.

(Example) Below, the Example of this invention is described based on an accompanying drawing.

FIG. 1 is a plan view of a production line in which a sheet assembling apparatus according to the present invention is arranged, FIG. 2 is a plan view of the sheet assembling apparatus, FIG. 3 is a view in the direction of arrow A in FIG. FIG. 5 is a view taken in the direction of arrow B in FIG. 2, FIG. 5 is an enlarged view of an essential part of FIG. 2, FIG. 6 is a view taken in direction C of FIG. 5, and FIG. FIG. 8 is an enlarged side view of the seat back assembling unit, FIG. 9 is a plan view of the pallet, FIG. 10 is a view in the direction of arrow E in FIG. 9, and FIG. Side view, FIG. 12 is a view in the direction of arrow F in FIG. 11, FIG. 13 is a side view of the movable base drive unit, FIG. 14 is a sectional view taken along line GG of FIG.
FIG. 15 is a side view of the positioning clan bar, FIG. 16 is a view in the direction H of FIG. 15, and FIG. 17 is a plan view of the hook clamper.
18 is a view in the direction of the arrow I in FIG. 17, FIG. 19 is a view showing the operation of the hook clamper, FIG. 20 is a plan view of the stake clamper, FIG. 21 is a view in the direction of the arrow J in FIG. FIG. 22 is a side view of the nut runner, and FIGS. 23 (A) to (F) are views showing a procedure for assembling the seat.

In FIG. 1, reference numeral 1 denotes a transport line, along which the vehicle body 2 is transported. A moving body 4 is engaged with a rail 3 in a direction orthogonal to the transport line 1, a rear seat assembly device 6 is provided on the moving body 4, and a rear seat preset jig 7 and a rear seat are provided near the moving body 4. A jig stand 8 used for maintenance of the assembly jig is arranged.

The rear seat assembling device 6 supports a seat cushion assembling unit 10 and a seat back assembling unit 100 on an arm 9 whose base end is rotatably supported by the moving body 4.

The seat cushion assembling unit 10 is shown in FIGS.
As shown in the drawing in detail, a rail 12 is provided on a support plate 11 fixed to an arm 9, a first moving member 13 is engaged with the rail 12, and the rail 12 is attached to the first moving member 13.
The rail 14 in the direction orthogonal to the
The first and second moving members 13 and 15 can be driven to move in two horizontal directions when the sheet is attached.

Also, as shown in FIGS. 11 and 12, the second moving member
A pin 16 extending downward is fixed to 15 and the support plate 11
A clamp device 18 for opening and closing is fixed to the upper part by a cylinder unit 17, and the pin 16 is fixed by the clamp device 18.
By gripping, the second moving member 15 is fixed to the support plate 11, and movement in two horizontal directions is blocked.

As shown in FIG. 5, a pair of guide shafts 19, 19 are erected on the second moving member 15, and the base of the guide member 20 is fitted to the guide shaft 19,
The base portion of the seat cushion assembly unit 10 is connected to the rod of the balancing cylinder unit 21 provided on the second moving member 15.
And the seat cushion assembling unit 10 is allowed to float in the vertical direction. That is, the rod enters a floating state by protruding, and enters a locked state by retracting the rod. The reason why the weight of the seat cushion assembling unit 10 is supported by the balancing cylinder unit 21 is to reduce the weight of the seat cushion assembling unit 10 applied to the vehicle body floor when the seat cushion is mounted on the vehicle body floor.

The guide member 20 has a frame shape in a plan view, and rails 22 and 22 having an arch shape in a side view are provided on both side portions.
The movable base 24 is supported on the rollers 2 and 22 via the roller 23, and
As shown in FIGS. 13 and 14, a rack 25 is formed at one lower edge of the rails 22, 22, and a movable base 24 is attached to the rack 25.
The movable base 24 is moved by the rail 22 by meshing with the pinion 26 provided at the first position and rotating the pinion 26 by the motor 27.

The movable base 24 includes a pair of plates 28, 28 having a substantially triangular shape in a side view, which are connected by a cross member 29.
A shaft 30 is installed rotatably between 28 and one plate
A cylinder unit 31 is fixed to 28 and connected to a lever 32 welded to a rod shaft 30 of the cylinder unit 31 so that the shaft 30 rotates when the cylinder unit 31 is operated. At both ends of the shaft 30, swing arms 33, 33 which swing by the rotation of the shaft 30 are attached, and a hook clamper 34 is provided at the tip of the swing arm 33.

As shown in FIGS. 17 and 18, the hook clamper 34 has a cylinder unit 35 fixed to the tip of the swing arm 33 and clamp pins 37, 37 mounted on pins 36, 36 implanted in the swing arm 33. The intermediate part is pivotally supported, and the rod of the cylinder unit 35 is connected to the base of these clamp claws 37, 37 by a lever 3.
8, 38, and the clamp claws 37, 37 are opened and closed by the operation of the cylinder unit 35. In addition, the tip of the swing arm 33 has a holding piece 3 located between the clamp claws 37, 37.
9 is projected, and a pusher 40 having a tip bent downward is provided in an opening formed in the holding piece 39. The pusher 40 is pivotally supported in the holding piece 39 by a pin 41 and is urged clockwise by a coil spring 42 about the pin 41 in FIG. Then, the annular hook 43 provided at the lower front end of the seat cushion S1 is clamped by the clamp claws 37, 3
The seat cushion assembly unit 10 is held in the first position with the balance cylinder unit 21 holding the space between the seat cushion 7 and the holding piece 39 and locking the floating in the vertical direction.
Move it backward as shown in Fig. 24 (A). Then
As shown in FIG. 24 (B), the tip locking portion 40 of the pusher 40.
a grips the hole 46a of the floor mat 46 and rotates clockwise to lock the locking portion 40a in the hole 46a, and subsequently, the hook 43,
Enter into the hole 46a. After this, as shown in FIG. 24 (C),
Floor mat 46 by the tip locking part 40a of the pusher 40
While pushing backwards, it passes once over the engaging hole 45 of the vehicle body and shifts the position of the hole 46a of the floor mat 46 rearward as shown in FIG. 24 (D). Here, the tip locking part of the pusher 40
When 40a passes over the engagement hole 45, the locking portion 40a tends to rotate further clockwise, but the step portion 40 provided on the pusher 40
Since b comes into contact with the floor mat 46, rotation of the locking portion 40a is prevented, and the locking portion 40a is not caught in the engagement hole 45.

Thereafter, the locked state in the vertical direction by the balancing cylinder unit 21 is released, and the entire device 6 is moved forward (leftward in the figure) by the arm 9. Then, Fig. 24 (E)
The hook 43 is dropped into the engagement hole 45 without involving the floor mat with the weight reduced by the balancing cylinder unit 21 as shown in FIG.

At this time, since the pusher 40 is in contact with the vehicle body floor 44, it is slightly pushed upward. Therefore, the upward movement of the pusher 40 is detected by the limit switch, and the hook 43
Is determined to have been inserted into the engagement hole 45, and the next step, that is, the work for fastening the stay is performed. If the limit switch does not detect the upward movement of the pusher 40, the stay is not tightened.

On the other hand, as shown in FIG. 5, a positioning clamper 50 is provided from the middle portion of the cross member 29 constituting the movable base 24.
Is protruding. The positioning clamper 50 is shown in Figs.
As shown in FIG. 16, a bracket 51 extending diagonally downward is fixed to the cross member 29, and a bifurcated clamp claw 52 is attached to the bracket 51, and a positioning jig provided on the preset jig 8 and the vehicle body 2 is attached to the clamp claw 52. A recess 54 into which the pin 53 enters is formed.

Further, a stay clamper 60 is provided on the movable base 24. The stay clamper 60 is attached to the cross member 29 of the movable base 24 by a bracket 61 as shown in FIGS.
Mount the cylinder unit 62 on the bracket 61, and pivotally support the middle portion of the clamp claws 64, 64 on the pins 63, 63 planted on the bracket 61.
The base end of the cylinder unit 64 and the rod of the cylinder unit 62 are connected by levers 65, 65, and the operation of the cylinder unit 62 causes the clamp claws 64, 64 to open and close. In addition, the bracket 61 has a holding piece 66 located between the clamp claws 64.
The tip of the nut runner 68 faces the opening 67 formed in the holding piece 66.

The nut runner 68 has a movable base as shown in FIG.
A rail 70 is provided on a support plate 69 fixed to a part of 24,
A slider 71 is engaged with this rail 70, and this slider
The nut runner 68 is attached to the support plate 69, and the nut runner 68 is moved out of the opening 67 of the holding piece 66 by the operation of the cylinder unit 72 provided on the support plate 69.

Thus, with the annular stay 73 provided at the rear end of the seat cushion S1 held between the clamp claws 64, 64 and the holding piece 66, the positioning clamper 50 is aligned with the positioning pin 53 on the vehicle body, Position the mounting holes or bolts on the side and the bolts or nuts held by the nut runner 68,
Bolts and the like are tightened to the vehicle body 2 through the stay 73, and the seat cushion S1 is mounted on the vehicle body side.

Further, the movable base 24 moves along the rail 22 of the guide member 20 so as to draw an arcuate locus, but in order to reduce the impact at the movement limit, the guide member 20 includes a damper 80 and a stopper as shown in FIG. 81 is provided, and the movable base 24 is provided with a stopper 82 and a damper 83 that come into contact with the damper 80 and the stopper 81 at their respective movement limits.

On the other hand, as shown in FIG. 8, the seatback assembling unit 100 has a bracket 101 fixedly mounted on the revolving arm 9, the base of the swing arm 102 is rotatably supported on the bracket 101, and the bracket 101 is mounted on the bracket 101. The swing arm 102 is made to swing in a vertical plane by the operation of the provided cylinder unit 103, and a frame-shaped or plate-shaped support 104 is attached to the tip of the swing arm 102. A clamp arm 105 is provided at the upper portion for pressing the shoulder of the seat back S2 from above, and a clamp arm 107 is provided at the lower portion of the support body 104 for swinging by the operation of the cylinder unit 106 and supporting the lower portion of the seat back S2 from below. ing.

Next, the structure of the preset jig 8 will be described with reference to FIGS. 9 and 10. The preset jig 8 includes a horizontal frame body 200 and the horizontal frame body 2.
It consists of a frame 201 standing diagonally upward from the rear end of 00,
Positioning pieces 202, 203, 204 are erected on the frame 200, the positioning piece 202 positions and holds the hook 43 provided at the lower front end of the seat cushion S1, and the positioning piece 203 positions and supports the front lower surface of the seat cushion S1. The positioning piece 204 positions and supports the rear end of the seat cushion S1, and the bolt 20 inserted into the stay 73 is used.
5 is held, and a receiving piece 206 for mounting the seat back S2 is further provided.

A cylinder unit 207 is attached to the frame 201, and the operation of the cylinder unit 207 is transmitted to the arm 209 via the link 208, and the seat back S2 is gripped from the side by the horizontal rotation of the arm 209. This gripping state is released.

A procedure for assembling the rear seat into the vehicle compartment by the seat assembling apparatus 6 having the above-described structure will be described with reference to FIG. In FIG. 23, only the seat cushion S1, the seat back S2, and the movable base 24 are shown for easy understanding of the movement.

First, the moving body 4 (see FIG. 1) is retracted, and the seat cushion S1 and the seat back S2, which are positioned and set on the preset jig 8 by the seat assembling device 6, are respectively set to the seat cushion assembling unit 10 and the seat back assembler. It is gripped by the attachment unit 100. At this time, align the pin 53 of the preset jig 8 with the positioning clamper.
This is done by engaging the clamp claws 52 of 50. Moving object 4
Is moved forward in the direction of the vehicle body 2 and the seat cushion S1 and the seat back S2 are simultaneously inserted into the passenger compartment. At this time, as shown in FIG. 23A, the posture is such that the movable base 24 is moved forward with respect to the vehicle body, and the seat cushion S1 is substantially raised,
The seat big S2 has a substantially upright posture at the rear position of the seat cushion S1 so that the seat big S2 does not interfere with the vehicle body when the seat cushion S2 is put into the passenger compartment.

Next, seat cushion S1 and seat back S2
Is inserted, the seat back assembly unit 100
The cylinder unit 103 (see FIG. 8) is operated to swing the arm 102 upward, and the seat back S2 is retracted upward as shown in FIG.
The posture is such that it can be assembled.

Thereafter, the swing arm 33 of the seat cushion assembling unit 10 is swung rearward, and the holes of the floor mat 46 and the mounting holes of the floor 44 match with the pusher 40 as shown in FIGS. 18 and 19. Then, the arm 33 is swung forward again and the hook clamper 34 releases the gripping state of the hook 43, and the hook 43 at the front end of the seat cushion S1 is engaged with the mounting hole of the floor 44 as shown in FIG. 23 (C). Stop.

Next, the movable base 24 is moved rearward and downward along the rails 22 of the guide member 20, and the seat cushion S1 is set on the floor 44 as shown in FIG. At this time, the positioning pin provided on the vehicle body side is engaged with the clamp claw 52 of the positioning clamper 50, and the position of the seat assembling device 8 and the vehicle body 2 is adjusted. When the seat cushion S1 is set on the floor 44, the stay 73 of the seat cushion S1 is fixed to the vehicle body floor by the nut runner 68, and the assembly of the seat cushion S1 is completed.

When the mounting of the seat cushion S1 is completed as described above, the movable base 24 is moved forward as shown in FIG. 23 (E) so that the movable base 24 does not interfere with the seatback mounting unit 100. As shown in FIG. 23 (F), the seat back S2 is set upright on the rear end of the seat cushion S1, and then the seat belt and the like are attached, and the seat back S2 is fixed to the vehicle body side to secure the rear seat. Complete the assembly.

(Effect of the Invention) As described above, according to the present invention, the seat cushion and the seat back can be set in the vehicle compartment at the same time by a single assembling operation, so that the working efficiency is greatly improved.

Further, the structure of the apparatus itself is such that the seat cushion mounting unit and the seat back mounting unit can be operated separately, and the seat cushion mounting unit is provided with a movable base on a guide member having an arch-shaped rail. Since the swing arm is pivotally supported on the base and the hook clamper is provided on the swing arm, complicated movements can be performed without interfering with each other, so that the seat can be securely assembled.

[Brief description of drawings]

FIG. 1 is a plan view of a production line in which a sheet assembling apparatus according to the present invention is arranged, FIG. 2 is a plan view of the sheet assembling apparatus, FIG. 3 is a view in the direction of arrow A in FIG. FIG. 5 is a view taken in the direction of arrow B in FIG. 2, FIG. 5 is an enlarged view of an essential part of FIG. 2, FIG. 6 is a view taken in direction C of FIG. 5, and FIG. FIG. 8 is an enlarged side view of the seat back assembling unit, FIG. 9 is a plan view of the pallet, FIG. 10 is a view in the direction of arrow E in FIG. 9, and FIG. Side view, FIG. 12 is a view in the direction of arrow F in FIG. 11, FIG. 13 is a side view of the movable base drive unit, FIG. 14 is a sectional view taken along line GG of FIG.
FIG. 15 is a side view of the positioning clamper, FIG. 16 is a view in the direction of arrow H in FIG. 15, FIG. 17 is a plan view of the hook clamper,
18 is a view in the direction of arrow I in FIG. 17, FIG. 19 is a view showing the operation of the hook clamper, FIG. 20 is a plan view of the stay clamper, FIG. 21 is a view in the direction of arrow J in FIG. FIG. 22 is a side view of the nut runner, FIGS. 23 (A) to (F) are views showing a procedure for assembling the seat, and FIGS. 24 (A) to (E) are hooks engaging with holes in the floor. It is a figure showing an operation. In the drawings, 2 is a vehicle body, 6 is a seat assembling device, 8 is a preset jig, 10 is a seat cushion assembling unit, 20
Is a guide member, 22 is a rail, 24 is a movable base, 33 is a swing arm, 34 is a hook clamper, 43 is a hook, 50 is a positioning clamper, 73 is a stay, 100 is a seat back assembly unit, S1 is a seat cushion, S2 is a seat back.

Claims (2)

(57) [Claims] 1. A seat cushion and a seat back, which are positioned and set on a preset jig, are gripped by a seat cushion assembly unit and a seat back assembly unit that operate independently of each other, and the seat cushion and the seat back are opened in a vehicle body. With the seat cushion in a position where it does not interfere with the seats and at the same time, the seat back is retracted in the passenger compartment to avoid interference with the seat cushion, and then the seat cushion is assembled to the vehicle body. A method of assembling a vehicle seat, characterized in that the seat back is assembled to the vehicle body in a retracted state. 2. A robot comprising a robot fixedly mounted on a base movable between a vehicle body and a preset jig, a seat cushion assembly unit and a seat back assembly unit arranged on an arm of the robot. The seat cushion assembling unit has clamp means for gripping the seat front end and the seat rear end, and is swingably provided with the seat front end as a fulcrum. The seat back assembling unit includes the seat upper end and the seat. Assembly of a vehicle seat characterized in that it has a clamp means for gripping a lower end portion, and is provided so as to be swingable around the axis of a robot arm so that each assembly unit can be operated independently. apparatus.