JPH07132866A - Automobile seat mounting device - Google Patents

Abstract

PURPOSE:To mount a seat carried in a seat mounting station with its seat back folded on the upper side of a seat cushion on a car body by erecting the seat back. CONSTITUTION:A seat transfer device 5 is provided which carries in a seat 6 loaded on a seat pallet 13 to a seat mounting station and is provided with a seat support arm 19 to support the rear of a seat cushion 6B, a seat cushion holding member 35 to hold the upper surface of the seat cushion 6B, and a pusher plate 31 to push a seat back 6A in erecting direction relative to a seat 6 fixed by these members 19 and 35 on the seat mounting station.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for mounting a seat on a vehicle body in an automobile assembly line, and more particularly to an apparatus for erecting and mounting a seat back which is laid down on a seat cushion.

[0002]

2. Description of the Related Art For example, in Japanese Patent Publication No. 4-22751, a seat is clamped by applying a clamp member to a front portion of a seat cushion and a rear surface portion of a seat back at a seat mounting station in an automobile assembly line. However, there is disclosed a seat mounting hand device of an automobile in which the seat is mounted on the vehicle body by the robot device in the clamped state. According to this, the mounting of the seat on the vehicle body is automated.

[0003]

By the way, in the seat carried into the seat mounting station, the seat back is in a state of being laid down on the seat cushion. This is because when the seat pack is set up, the weight balance of the seat is disturbed and the seat is not yet fixed to the vehicle body, so that the seat collapses backward. When the vehicle is mounted on the vehicle body, the headrest C of the seat A interferes with the front pillar D when the sheet A is carried into the vehicle body through the door opening B as shown by the solid line in FIG. There is a possibility that the carry-in of A may be hindered.

Therefore, according to the present invention, even when the seat back is conveyed to the seat mounting station with the seat back being laid down on the seat cushion, the seat back E is erected and carried into the vehicle body as shown by the chain line in FIG. An object of the present invention is to provide a vehicle seat mounting device that can be used.

[0005]

That is, the invention according to claim 1 of the present invention (hereinafter referred to as the first invention) is provided in a seat mounting station in a state in which a seat back is laid down above a seat cushion. A vehicle seat mounting device for mounting a carried-in seat on a vehicle body by erecting a seat back, wherein a seat support member is pressed against a rear portion of a seat cushion of the carried-in seat, and a seat after the seat support member is pressed. A seat cushion pressing member to be brought into contact with the upper surface of the cushion, and a pusher member to press the seat back in a standing direction after the seat cushion pressing member is brought into contact are provided.

The invention according to claim 2 (hereinafter referred to as the second
The invention) is characterized in that the seat cushion pressing member and the pusher member are provided on a moving body that moves closer to the seat against which the seat support member is pressed from the front side of the seat.

The invention according to claim 3 (hereinafter, referred to as the third
(Referred to as an invention), the moving body is provided with a clamp means for sandwiching the seat back from the seat front-rear direction and both side directions.

The invention according to claim 4 (hereinafter, referred to as the fourth
(Referred to as an invention), the clamping means is provided with a centering means for moving the sheet forward, backward, leftward and rightward so that the sheet is located at a predetermined centering position while the sheet is clamped.

Further, in the invention described in claim 5 (hereinafter referred to as the fifth invention), the moving body is provided with a drive mechanism for moving the sheet clamped by the clamp means to a predetermined transfer position. It is characterized by being.

[0010]

According to the first aspect of the present invention, the seat support member is first pressed against the rear portion of the seat cushion with respect to the seat carried in with the seat back lying above the seat cushion, and then the seat cushion. While pressing the upper surface of the seat cushion by the pressing member,
The pusher member allows the seat back to be rotated to stand up.

Further, according to the second aspect of the invention, the seat cushion pressing member and the pusher member are provided on the moving body, and these members are brought closer to each other by the movement of the moving body after the sheet is carried in. There is no hindrance.

Further, according to the third aspect of the invention, the seat on which the seat back is erected can be clamped and moved by the clamp means. Then, in this case, according to the fourth aspect of the invention, the clamped sheet can be positioned at the centering position by the centering means, so that the sheet can be accurately transferred when it is transferred to the predetermined position.

Further, according to the fifth invention, the clamped sheet can be moved to a predetermined transfer position by the movement of the moving body.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show a seat mounting station 1 in an automobile assembly line, in which a turntable 4 is provided on a side portion of a conveyor 3 that conveys a vehicle body 2, and on the turntable 4. The sheet 6 is supplied by the sheet transfer device 5, and the supplied sheet 6 is clamped by the gripping hand 8 attached to the robot device 7 and mounted on the vehicle body 2. Therefore, a pair of left and right guide rails 9 and 9 are installed above the seat mounting station 1 in the same direction as the vehicle body conveyor 2, and the carriage 10 is movable on these guide rails 9 and 9. The robot hand 12 in the robot device 7 is movably attached to the guide rail 11 provided on the carriage 10 in a direction perpendicular to the vehicle body transport direction.

Further, the robot hand 12 has a lower part robot hand 12A which can be raised and lowered, and by this elevation, the gripping hand 8 mounted on the lower part of the lower robot hand 12A moves the table 4 above the table 4. The sheet 6 is clamped and mounted on the conveyed vehicle body 2.

On the other hand, the sheet 6 is placed on the sheet pallet 13 (see FIG. 3) and is conveyed by the sheet conveying conveyor 14 from the direction opposite to the vehicle body conveying direction to the lifter 15 shown in FIGS. After the seat back 6A is erected by the sheet transfer device 5 on 15,
It is transferred onto the turntable 4 described above.

The lifter 15 is a sheet conveying conveyor 1.
The sheet 6 is located so as to face the terminal end of the sheet No. 4, and the sheet 6 is transferred from the conveyor 14 to rise from the position indicated by the chain line in FIG. In that case, a fixed frame 17 (see FIGS. 3 and 6) is provided on the side of the lifter 15 at the raised position, and a seat support arm 19 that rotates on the fixed frame 17 with the support shaft 18 as a fulcrum. Is provided. Further, a lever 20 is continuously provided on the support shaft 18, and the air cylinder 2 is provided between the lever 20 and the bracket 21 of the fixed frame 17.
When the two are connected and the lifter 15 is completely lifted, the air cylinder 22 is contracted by detecting the completion by the detection means (not shown), and the seat support arm 1
9 is erected from the solid line position in FIG. 3 to the chain line position, and the seat support arm 19 is brought into contact with the rear portion of the seat cushion 6B.

On the other hand, the above-mentioned sheet transfer device 5 is composed of the pedestal 2
It has a traveling block 21 supported by 0, and the traveling block 21 is capable of reciprocating in a direction parallel to the vehicle body conveyor 3. That is, the pedestal 20 is provided with a pair of rails 22 and 22 (see FIGS. 3 and 4) above and below its side surface, and the traveling block 2 is provided on these rails 22 and 22.
The engaging member 23 provided on the base block 21A of
23 is slidably engaged in a state where the traveling block 21 is not detached from the gantry 20, and a rack 24 is provided on the upper surface of the gantry 20 in parallel with the rails 22. The rack 24 is supported by the base block 21A. By rotating the pinion 25 by the forward / reverse rotation motor 26, the traveling block 21 travels in a direction corresponding to the rotation direction of the pinion 25.

Further, the traveling block 21 has an elevating frame 21B having a downward U shape suspended from the base block 21A via an air cylinder 27, and is elevated as the air cylinder 27 expands and contracts. . The lifting operation is guided by passing the guide rods 29, 29 standing on the upper surface of the lifting frame 21B through the cylindrical guide members 28, 28 provided on the base block 21B.

A central frame 30 (see FIGS. 4, 5 and 7) is provided so as to hang down at the central portion of the lower surface of the elevating frame 21B, and a seat placed on the lifter 15 of the central frame 30. The pusher plate 31 is positioned on the side corresponding to 6 (hereinafter, for simplification, the side on which the sheet transfer device 5 moves toward the sheet 6 is referred to as the front side). This pusher plate 31
Is for erecting the seat back 6A from a fallen state, in which a guide rod 32 connected to the pusher plate 31 is passed through and supported by a cylindrical guide member 33 attached to the central frame 30. An air cylinder 34 is attached to the central frame 30 in the upper part thereof in parallel with the guide rod 32, and a piston rod of the air cylinder 34 is attached to the pusher plate 31.
The pusher plate 31 is moved in the same direction as the traveling direction of the traveling block 21 by the expansion and contraction of the air cylinder 34.

A seat cushion pressing member 35 is suspended from the bottom plate 30A below the central frame 30. In this case, as will be described later, the seat cushion pressing member 35 is configured to move slightly upward when it hits the upper surface of the seat cushion 6B by the lowering of the elevating frame 21B, and this movement is detected by the sensor 36. Then, the contact with the seat cushion 6B is detected.

Further, an arm 37A having a mounting plate 37B at the lower end is continuously connected from the above-mentioned base block 21 to the rear position of the seat cushion pressing member 35 in a hanging state, and a sensor is provided at the rear surface of the mounting plate 37B. 38
Is fixed and the contact plate 39 is provided on the front side of the sensor 38.
It is located connected to. The sensor 38 detects the front portion of the seat cushion 6B, and detects the front portion of the seat cushion by detecting the movement of the contact plate 39 against the front portion of the seat cushion and retracting against the spring 40.

Further, two guide rods 41, 42 are provided below the pusher plate 31 above and below the pusher plate 31 so as to extend over both sides of the frame, and these guide rods 41, 42 are provided on both sides thereof. Slide blocks 43A and 43B are fitted over 41 and 42, respectively, and these slide blocks 43A and 43B are slidable in the guide rod length direction. And
Parallel arms 44, 44 projecting relatively long toward the front are fixed to the lower surfaces of the slide blocks 43A, 43B via brackets 58.
Seat side clamp plate 4 on the facing surface (inner surface) of 4
5A and 45B (see FIGS. 4 to 6) are attached. These seat side clamp plates 45A,
45B is for clamping the seat back 6B from both sides when the seat 6 is transferred to the turntable 4 after the seat back 6A is erected.

Further, because of the above-mentioned clamp, the brackets 58, 5 of the slide blocks 43A, 43B on both sides are provided.
The lateral movement air cylinder 46 is connected over eight, and the contraction of the lateral movement air cylinder 46 causes the two cylinder blocks 43A and 43B to relatively move toward each other. In addition, a bracket 47 is attached to the above-described central frame 30, and a centering air cylinder 48 is attached to the bracket 47 in parallel with the lateral movement air cylinder 46, and its piston rod 49 is attached to the slide block 43A on one side. Be connected. The guide rod 41 on the front side penetrates the central frame 30.

Further, rails 50, 50 are provided on the outer surface of each of the arms 44, 44, and a pair of front and rear sliders 51, 52 are non-detachably fitted to the rails 50, 50, respectively. The rear side seat clamp plate 54A is attached to the brackets 53, 53 of the front side sliders 51, 51.
54A is attached, and the seat front clamp plate 54 is attached to the brackets 55, 55 of the rear sliders 52, 52.
B and 54B are attached. These clamp plates 54A and 54B clamp the seat back 6A from the front and back when transferring sheets, and are located above the seat side clamp plates 45A and 45B described above and face each other in the front and rear direction. There is. Further, front and rear movement air cylinders 56 and 56 are attached to the rear surfaces of the brackets 55 and 55 of the rear side sliders 52 and 52, and the piston rods 57 and 57 of the front and rear movement air cylinders 56 and 56 are attached to the front side. If the sliders 51, 51 are connected to the brackets 53, 53 and thus the air cylinders 56, 56 are contracted, the front and rear sliders 5, 5
1, 52 (in other words, clamp plates 54A, 54
B) moves relatively closer.

In addition, the slide block 43A,
Each of the portions 43B has an extending portion 5 protruding outward from the above-mentioned brackets 58, 58 fixed to their lower surfaces.
8A and 58A are provided. These extension parts 58A, 5
8A is located rearward of the brackets 55, 55 of the rear sliders 52, 52 in a state where it exceeds the above-mentioned front-rear movement air cylinders 56, 56, and the centering air cylinders 59, 59 are attached to the rear surface thereof. The piston rods of the air cylinders 59, 59 are connected to the brackets 55, 55 of the rear sliders 52, 52.

Next, the movement of the sheet transfer device 5 will be described.

In the standby state, the traveling block 21 of the sheet transfer device 5 is located at the position of the arrow X1 in FIG. This position is on the opposite side of the side where the seat 6 is carried in with the turntable 4 interposed therebetween. This is the operation of mounting the seat 6 transferred to the turntable 4 on the vehicle body 2 by the robot device 7 described above. This is because it does not interfere with. At the X1 position, the elevating frame 21B is raised by the air cylinder 27, the pusher plate 31 is pulled toward the elevating frame 30, and the seat side clamp plates 45A and 45B on both sides are widened. Similarly, the distance between the seat rear clamp plate 54A and the seat front clamp plate 54B is also wide.

When the seat 6 conveyed on the seat pallet 13 is lifted by the lifter 15, the seat support arm 19 is erected by the air cylinder 22 and applied to the rear portion of the seat cushion 6B. At the same time, the traveling block 21 advances from the arrow X1 position to the arrow X2 position shown by the solid line in FIG. Then, due to the forward movement, the contact plate 39 comes into contact with the front portion of the seat cushion to stop the output signal of the sensor 38, and then the elevating frame 21B is lowered by the extension of the air cylinder 27 and the seat cushion pressing member 35.
Hits the upper surface of the seat cushion 6B, and the sensor 36
Detecting this upper surface stops the descent. As a result, the front and rear and the upper surface of the seat cushion 6B are held by the seat support arm 19, the contact plate 39, and the seat cushion pressing member 35. Further, in this state, the pusher plate 31 described above is positioned at a height corresponding to the headrest 6C and the seat back 6A.

Next, the pusher plate 31 is pushed out toward the seat 6 by the air cylinder 34, hits the headrest 6C and the seat back 6A lying on the seat cushion 6B, and raises them.

Then, the lateral movement air cylinder 46 is contracted so that the slide blocks 43A and 43B on both sides and the seat side clamp plates 45A and 45B relatively move toward each other in the direction in which the seat back 6A is sandwiched from both sides. In that case, when one of the seat side clamp plates (for example, 45A) hits the seat back side first, the seat back plate 45A stops due to the load due to the abutment, and thereafter, the seat side on the other side. Only the partial crank plate 45B moves closer, and thereby the seat back 6A is clamped from both sides.

By the way, the position of the sheet pallet 13 on the lifter 15 is not always constant, and the position of the sheet 6 on the sheet pallet is not constant either. Therefore, in order to accurately transfer the sheet onto the turntable 4 after clamping. Need to correct the misalignment. Therefore, after the above-mentioned clamping, the clamping air cylinder 48 is operated while maintaining the clamped state, and the slide blocks 43A, 4
3B and seat side clamp plates 45A, 45B
Is moved laterally, and the centering operation is performed so that the seat 6 comes to the centering position at the center in the lateral direction. In addition,
This centering operation may be performed simultaneously with the front-back centering operation described below.

After the above-mentioned clamping or the centering operation, the air cylinders 56, 56 for forward and backward movement are contracted, and the movement of the sliders 51, 52 causes the rear seat clamp plate 54A and the front seat clamp plate 54B to move relatively closer to each other. To do. Also in this case, as with the clamp on the side of the seat back, one of the crank plates (for example, 54A) comes first to the seat back 6A.
When the seat back 6A is hit, the seat back 6A is stopped in that state, and only the other clamp plate 54B is moved closer, whereby the seat back 6A is clamped from the front and rear, and then the seat back 6A is clamped by the centering air cylinders 59, 59. While maintaining this state, both clamp plates 54A and 54B are moved back and forth to perform centering. It should be noted that this longitudinal clamping operation may be performed at the same time as the lateral clamping operation. Also. The pusher plate 31 in which the seat back 6A is raised may be returned immediately after it is erected, or may be returned after the seat clamp.

After the clamp is completed, the air cylinder 2
The elevating frame 21B is lifted by 7 and the traveling block 21 travels to the position of the arrow X3 in FIG. Therefore, the sheet 6 is lifted from the sheet pallet 13 and moved onto the turntable 4, and is transferred to the turntable 4 by the next lowering of the elevating frame 21B and the unclamping operation.

Thereafter, the traveling block 21 is moved to the position of the arrow X1 and the seat 7 is mounted on the vehicle body 2 by the robot device 7 while the turntable 4 is rotated 180 degrees.

According to such a structure, the seat back 6
The seat 6 can be loaded into the vehicle body 2 with A standing upright, and it is possible to avoid interference between the headrest 6C and the pillars when loading.

The seat back 6A is placed on the lifter 15.
And clamp plates 45A, 45B, 5
Since the sheet 6 clamped by 4A and 54B is positioned at the centering position and then transferred to the turntable 4, the position of the sheet 6 on the turntable 4 is always fixed, so that the robot apparatus 7 can accurately mount the sheet. You can do it.

1 and 2, only the seat mounting structure from one side of the vehicle body is shown, but it goes without saying that a similar seat mounting structure is provided on the other side of the vehicle body.

[0040]

As is apparent from the above description, according to the first aspect of the present invention, first, the seat support member is seated on the seat that has been brought in by the seat back being tilted above the seat cushion. After being applied to the rear portion of the cushion, the upper surface of the seat cushion can be pressed by the seat cushion pressing member, and the seat back can be rotated to stand up by the pusher member.
Therefore, the seat can be carried into the vehicle body with the seat back standing upright, and the seat can be mounted without interference between the seat and the pillar.

According to the second aspect of the invention, since the seat cushion pressing member and the pusher member are provided on the moving body and these members are brought closer to the seat by the movement of the moving body, the above-mentioned members are seat mounting stations for the seat. It will not hinder the carry-in.

Further, according to the third aspect of the invention, it is possible to clamp and move the seat on which the seat back is erected. In that case, according to the fourth aspect of the invention, since the seat after clamping can be positioned by the centering means, accurate transfer can be performed when the seat is transferred to a predetermined position, and therefore the seat can be carried into the vehicle body accurately. Become.

Further, according to the fifth aspect, the clamped sheet can be moved to a predetermined transfer position by the movement of the moving body, and the movement from the standing of the seat back to the sheet transfer position becomes smooth.

[Brief description of drawings]

FIG. 1 is a front view of a seat mounting station according to an embodiment of the present invention.

FIG. 2 is a plan view of the seat mounting station.

FIG. 3 is an enlarged view taken along the line AA in FIG.

FIG. 4 is a front view of the sheet transfer device shown in FIG.

FIG. 5 is a cutaway view of a main part in FIG.

6 is a sectional view taken along the line BB in FIG.

FIG. 7 is a view taken along line CC in FIG.

FIG. 8 is a diagram for explaining a posture when a seat is carried in with respect to a vehicle body.

[Explanation of symbols]

 1 seat mounting station 2 vehicle body 4 turntable 5 seat transfer device 6 seat 6A seat back 6B seat cushion 19 seat support arm 21 traveling block 24 rack 25 pinion 26 forward / reverse motor 31 pusher plate 35 seat cushion presser member 45A, 45B seat side Clamp plate 54A Seat rear clamp plate 54B Seat front clamp plate 48, 59 Centering air cylinder

Claims (5)

[Claims] 1. An automobile seat mounting apparatus for mounting a seat carried into a seat mounting station in a state where the seat back is laid down above a seat cushion, to mount the seat on the vehicle body with the seat back standing upright. A seat support member that is pressed against the rear portion of the seat cushion of the seat, a seat cushion pressing member that contacts the upper surface of the seat cushion after pressing the seat support member, and the seat back is erected after the seat cushion pressing member contacts. A vehicle seat mounting device, characterized in that a pusher member for pressing in a direction is provided. 2. The seat cushion pressing member and the pusher member are provided on a moving body that moves closer to the seat against which the seat support member is pressed from the front side of the seat. The vehicle seat mounting device described. 3. The vehicle seat mounting apparatus according to claim 2, wherein the moving body is provided with a clamp means for sandwiching the seat back from the seat front-rear direction and both side directions. 4. The clamping means is provided with a centering means for moving the sheet forward, backward, leftward and rightward so that the sheet is located at a predetermined centering position while the sheet is clamped. Vehicle seat mounting device. 5. The automobile seat according to claim 3, wherein the moving body is provided with a drive mechanism for moving the seat clamped by the clamp means to a predetermined transfer position. Onboard equipment.