JPH07115661B2 - Car seat conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Objectives of the Invention (1) Field of Industrial Application The present invention relates to a device for transporting a vehicle seat to a vehicle body assembly position in an automobile assembly line.
The present invention relates to an apparatus for transporting a sheet carried into one side of an assembly line to the other side of the assembly line through an upper part of a vehicle body.

(2) Conventional Technology A front seat of a vehicle is composed of a driver's seat and a passenger's seat, and the respective seats are separately assembled from the left and right sides of the vehicle body moving along the assembly line. For this purpose, a pair of sheet carry-in conveyors are installed along the left and right sides of the assembly line, one of the conveyors carries the driver's seat and the other conveys the passenger's seat. There is. However, the above-described conventional sheet conveying device requires a large floor area for laying out two carry-in conveyors, as well as increasing the facility cost because the sheet carry-in conveyors are installed on the left and right sides of the assembly line. It was an economy.

For this reason, a seat carry-in conveyor is installed only on one side of an automobile assembly line, and one of the driver seat and passenger seat carried in by this carry-in conveyor is passed through the upper part of the assembly line to the opposite side of the vehicle body. There has been proposed a sheet conveying device that conveys the sheet to the side (for example, see Japanese Utility Model Publication No. 58-8427).

(3) Problems to be Solved by the Invention By the way, there are cases where sufficient space cannot be obtained above the assembly line because various assembly devices and transfer devices are provided around the assembly line of the automobile. is there. However, in the above-described conventional sheet conveying device, since the seat back is upright so that the total height of the sheet is the highest, the sheet is moved to the opposite side of the vehicle body by raising, moving horizontally and lowering the sheet. There is a problem that the height of the entire device becomes high and it becomes difficult to install the device.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to suppress the overall height of a sheet conveying device that conveys a vehicle seat to the opposite side through the upper part of the vehicle body and reduce the installation space.

B. Configuration of the Invention (1) Means for Solving the Problems In order to achieve the above object, the present invention provides an assembly line in which a seat carried to one side of an automobile assembly line is passed through an upper part of a vehicle body on the assembly line. In a vehicle seat conveying apparatus that conveys the seat to the other side, the seat is seated at a substantially horizontal position by at least two seat support bars that are in contact with the bottom surface of the seat and the back surface of the backrest. The hanger supporting the seat in a rearward tilted manner such that the front end of the seat rises and the upper end of the backrest descends, and a hanger that is driven along a chain guide that spans the upper part of the assembly line to suspend the hanger and A chain for moving from one side to the other side, and a guide rail for guiding a guide roller provided on the hanger to regulate the posture of the hanger during movement are provided.

(2) Operation According to the present invention having the above-described configuration, the two seat support bars provided on the hanger are brought into contact with the bottom surface of the seat portion and the back surface of the backrest of the seat carried into one side of the assembly line.
The seat is supported by the hanger in a rearward leaning posture in which the overall height is the lowest. The hanger that supports the seat in a rearward tilted posture is suspended from a chain that is driven along a chain guide that extends over the upper part of the assembly line and is conveyed from one side of the assembly line to the other side. At this time, the guide roller provided on the hanger is guided by the guide rail, so that the posture of the hanger is kept constant. As a result, the sheet is conveyed to the opposite side through the upper part of the vehicle body while maintaining the rearward tilted posture in which the height in the vertical direction is the lowest, so that it is possible to keep the overall height of the conveying device low.

(3) Example An example of the present invention will be described below with reference to the drawings.

1 to 9 show an embodiment of the present invention.
FIG. 4 is an overall front view of the sheet conveying device, FIG. 2 is an enlarged view of a portion II of FIG. 1, FIG. 3 is a view in the direction of arrow III of FIG.
The drawing is a cross-sectional view taken along the line IV-IV in FIG. 3, and FIG. 5 is the VV in FIG.
6 is an enlarged view of the VI portion of FIG. 1, and FIG.
8 is a sectional view taken along the line VII-VII in FIG. 8, FIG. 8 is an enlarged view taken along the line VIII in FIG. 1, and FIG. 9 is a sectional view taken along the line IX-IX in FIG.

As shown in FIG. 1, an automobile assembly line L is equipped with a slat conveyor 1 installed below the floor surface, and a vehicle body B being assembled is placed on the slat conveyor 1 and conveyed in a direction perpendicular to the paper surface. . On one side of the assembly line L, a carry-in shooter 2 for carrying in the sheet S to be assembled to the vehicle body B is arranged in parallel with the slat conveyor 1, and on the opposite side of the carry-in shooter 2 with the assembly line L interposed therebetween. Is provided with a placing table 3 for temporarily placing the sheet S conveyed from the carry-in shooter 2 via a sheet conveying device described later. A gantry 5 configured by combining steel materials is suspended from a beam 4 located above the assembly line L. The gantry 5 carries the sheet S from the carry-in shooter 2 to the mounting table 3.
A sheet conveying device for conveying the sheet is provided.

As shown in FIG. 2, the carry-in shooter 2 includes a base 6 and side plates 7 extending in a direction perpendicular to the plane of the drawing.
Two rows of lower conveying rollers 8 are provided on the upper surface of the side plate, and one row of inclined upper conveying rollers 9 is provided on the inner surface of the side plate 7.
Is provided, and a pallet P that is pressed and driven by a cylinder (not shown) is supported on the lower transport roller 8. On the upper surface of the pallet P, an automobile seat S including a seat portion S ₁ and a backrest S ₂ is placed in a rearwardly inclined posture, and the back surface of the backrest S ₂ is placed on the upper conveying roller 9 provided on the side plate 7. It is supported.

As apparent from FIGS. 2 and 3, the hanger 10 of the sheet conveying device for conveying the sheet S is a plate-shaped hanger suspension bracket 12 welded to the center of a hanger shaft 11 connected to a chain described later. A hanger body 13 made of a pipe material welded to the lower part of the hanger suspension bracket 12, and two sheet support bars 14a extending from both sides of the hanger body 13 in parallel with the carrying direction of the carry-in shooter 2 and adjustable in mutual intervals. , 14b. Then, one of the seat support bars 14a on the bottom surface of the seat portion S ₁ of the sheet S, the other sheet support bar 14b is in contact respectively on the back of the backrest S ₂ equivalents,
When the seat S is placed on the pallet P and tilted backward, that is, when the seat S ₁ has a normal posture in which the seat S ₁ is substantially horizontal, the seat S ₁
The front end of the backrest S ₂ is higher than the normal posture, and the upper end of the backrest S ₂ is lower than the normal posture.

As is clear from FIGS. 3 to 5, a pair of chain brackets 15a and 15b are pivotally supported at both ends of the hanger shaft 11, and each chain bracket 15a and 15b is a chain 16.
Are fixed to the two links 16a and 16b (see FIG. 4). As a result, the hanger shaft 11 is firmly connected to the chain 16 while allowing the chain 16 to bend, and a large load can be supported.

As shown in FIG. 1, a chain 16 for suspending the hanger 10 via a hanger shaft 11 has support plates 5a ₁ , 5a _{2 to} 5f ₁ provided at various places on the pedestal 5 so as to straddle the assembly line L. It is guided in engagement with the 5 divided chain guide 17a~17e supported to 5f _2. That is, the chain guides 17a to 17e cross the upper part of the assembly line L by connecting to the first chain guide 17a which is bent upward in the horizontal direction after standing up from the upper part of the carry-in shooter 2. A horizontally extending second chain guide 17b, a third chain guide 17c connected to the second chain guide 17b, extending obliquely downward, and reaching the upper part of the mounting table 3 and a lower part of the third chain guide 17c. 4th chain guide 1
7d and a fifth chain guide 17e arranged in parallel with the lower part of the second chain guide 17b. Each of the chain guides 17a to 17e is made of channel steel, and the cross section of the first chain guide 17a is shown in FIG.
The cross section of the fifth chain guide 17b, 17e is shown in FIG.
The cross sections of the chain guides 17c and 17d are clearly shown in FIG. Further, the support plates 5a ₁ and 5a _{2 to} 5 of the gantry 5 are
The rotating shafts 18a to 18j supported by f ₁ and 5f ₂ are provided with 10 sets of sprockets 19a to 19j.
9j guides the chain 16 in cooperation with the chain guides 17a to 17e.

As shown in FIG. 6 and FIG. 7, a chain driving motor 21 is provided on the base plate 20 that covers the upper surface of the pedestal 5, and the motor 21 is attached to four brackets 23 via a speed reducer 22. It is connected to a supported output shaft 24. The drive sprockets 25 fixed to both ends of the output shaft 24 are the rotary shafts.
It is connected via a chain 27 to a driven sprocket 26 fixed to 18g. The middle portion of the chain 27 is engaged with the tensioner 28 to give a predetermined tension. Further, the rotation shaft 18f of the sprocket 19f is the base plate
It is supported by a slider 30 slidably engaged with a long hole 29a of a slide guide 29 provided on an outer support plate 5c ₁ connected to both sides of 20. The slider 30 is adapted to be connected to a rod 31a of the tension cylinder 31 provided in the side wall of the supporting plate 5c ₁ moves along the elongated hole 29a, thereby providing a predetermined tension to the chain 16.

As is clear from FIGS. 2 to 5, a pair of roller brackets 32 are fixed inside the connecting portions of the hanger shaft 11 with the chains 16 at both ends thereof, and the main guide rollers 33 are attached to the tips thereof. It is pivotally supported. Further, the center of a roller support plate 34 extending in the horizontal direction is fixed to the side portion of the hanger suspension bracket 12, and a pair of auxiliary guide rollers 35 are pivotally supported at both ends thereof.

As shown in FIG. 1, the mount 5 has a main guide roller 33.
Main guide rails 36a, 36b divided into two for guiding the vehicle
Are arranged along the chain guides 17a to 17e.
The first main guide rail 36a made of channel steel extends from the upper part of the carry-in shooter 2 to the end of the horizontal part of the gantry 5,
Its cross section is clearly shown in FIGS. 5 and 7.
On the other hand, the pedestal 5 is provided with sub guide rails 37a to 37c divided into three for guiding the sub guide rollers 35. The first sub-guide rail 37a made of grooved steel is for guiding the left sub-guide roller 35. It rises upward from the upper part of the carry-in shooter 2 and then curves horizontally to connect to the second sub-guide rail 37b. is doing. As shown in FIG. 7, the second auxiliary guide rail 37b is made of grooved steel horizontally fixed to the upper part of the frame 5, and the pair of auxiliary guide rollers 35 are guided along the lower surface thereof. The third guide rail 27d made of an arc-shaped strip is connected to the end of the second sub guide rail 37b to guide the right sub guide roller 35, and
As shown in the figure, it is curved obliquely downward toward the mounting table 3.

Next, the operation of the embodiment of the present invention having the above configuration will be described.

The pallet P, which is carried into the one side of the assembly line L by the carry-in shooter 2, has a driver's seat S and a passenger's seat S mounted in pairs, and the driver's seat S is as described above. It is assembled to the vehicle body B directly from the carry-in shooter 2. On the other hand, the passenger seat S is conveyed to the opposite side of the vehicle body B across the assembly line L by the above-described sheet conveying device.

That is, by stopping the hanger 10 at the end of the carry-shooter 2, the seat support bars 14a, the previously 14b was waiting position of FIG. 2, the seat S ₁ lower surface and backrest of the seat S by the movement of the pallet P The rear surface of S ₂ enters into the upper portions of the two seat support bars 14a and 14b, and the seat S is supported by the hanger 10 in a rearwardly inclined posture.

When the motor 21 is driven from this state, the output shaft 24 rotates via the speed reducer 22, and the rotation causes the drive sprocket 25, the chain 27, and the driven sprocket 26 to rotate the sprocket 19g fixed to the rotary shaft 18g. This allows
Chain 16 includes chain guides 17a-17e and sprockets 19
The hanger 10 suspended by the chain 16 starts to rise as it is guided by a to 19j.

In FIG. 1, when the hanger 10 starts to rise, the hanger
A pair of main guide rollers 33 provided on 10 immediately engages with the first type guide rail 36a to prevent the hanger 10 from swinging. When the hanger 10 further rises and changes direction in the horizontal direction, the hanger 10 tries to swing to the left due to inertia, but the left sub guide rail 35 engages with the first sub guide rail 37a and the hanger 10 moves. Hold the posture constant. When the hanger 10 shifts to the horizontal movement, the left and right sub guide rollers 35 both come into contact with the lower surface of the second sub guide rail 37b to prevent the hanger 10 from swinging. When the horizontal movement of the hanger 10 is completed and the direction is changed downward, the main guide roller 33 moves from the first main guide rail 36a to the second main guide rail 36a, and at the same time, the right sub guide roller 35 moves to the third sub guide rail. Contact 27c. At the time of this downward direction change, the hanger 10 tries to swing to the right due to inertia.
The swing is prevented by the engagement of the sub guide rail 37c.

In this way, the hanger 10 that supports the sheet S in the rearward tilted posture so that the height of the sheet S becomes the lowest is the main guide roller 33.
And sub guide roller 35 to main guide rails 36a and 36b, respectively.
The sub-guide rails 37a to 37c guide the sheet S from one side of the assembly line L to the other side through the upper portion of the vehicle body B while maintaining a constant posture, and deliver the sheet S to the upper surface of the mounting table 3. Then, the seat S on the mounting table 3 is assembled to the vehicle body B from the left side of the assembly line L.

Then, by rotating the motor 21 in the reverse direction, the hanger 10 returns to the position of the carry-in shooter 2 through the route opposite to the above.
Similarly, the conveyance of the sheet S to be mounted on the succeeding vehicle body B is repeated.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments, and various small design changes can be made without departing from the present invention described in the claims. It is possible.

For example, in the embodiment, the two main guide rollers 33 and the two sub guide rollers 35 are provided in the hanger 10, but the functions of these two guide rollers 33, 35 are not clearly distinguished, and in short, the hanger is used. It suffices to prevent the hanger 10 from swinging by engaging the guide rail during movement of the hanger 10. Therefore, the number and arrangement of the guide rollers and the guide rails can be set appropriately.

C. Effects of the Invention As described above, according to the present invention, the seat is supported in the rearward tilted posture with the two seat support bars provided on the hanger being in contact with the seat bottom surface and the back surface of the backrest. The height of the sheet while being supported by the hanger can be reduced. Further, when the hanger is hung by the chain moving along the chain guide and conveyed, the guide roller provided on the hanger guides the guide rail to the guide rail to prevent the hanger from swinging. Therefore, it becomes possible to convey the seat to the opposite side through the upper part of the vehicle body while keeping the rearward tilted posture so that the height in the vertical direction becomes low, and the total height of the conveying device is suppressed to a low level to save the installation space. Can be reduced.

[Brief description of drawings]

1 to 9 show an embodiment of the present invention.
FIG. 4 is an overall front view of the sheet conveying device, FIG. 2 is an enlarged view of a portion II of FIG. 1, FIG. 3 is a view in the direction of arrow III of FIG.
The drawing is a cross-sectional view taken along the line IV-IV in FIG. 3, and FIG. 5 is the VV in FIG.
6 is an enlarged view of the VI portion of FIG. 1, and FIG.
8 is a sectional view taken along the line VII-VII in FIG. 8, FIG. 8 is an enlarged view taken along the line VIII in FIG. 1, and FIG. 9 is a sectional view taken along the line IX-IX in FIG. B: car body, L: assembly line, S: seat, S ₁
Seat, S ₂ …… Backrest 10 …… Hangers, 14a, 14b …… Seat support bar, 16 …… Chain, 17a to 17e …… Chain guide, 33 …… Main guide roller (guide roller), 35 …… Sub Guide rollers (guide rollers), 36a, 36b …… Main guide rails (guide rails), 37a to 37c …… Sub guide rails (guide rails)

Claims (1)

[Claims] 1. A vehicle body (B) on the assembly line (L) for a seat (S) carried into one side of an automobile assembly line (L).
In the apparatus for transporting an automobile seat, which conveys to the other side of the assembly line (L) through the upper part of the seat (S), at least two seats (S ₁ ) bottom surface and back surface (S ₂ ) back surface are respectively abutted. seat support bars (14a, 14b) by the seat relative to the normal posture seat the sheet (S) (S ₁₎ is substantially horizontal (S ₁₎ the front end is raised back (S ₂₎ upper end downward As described above, the hanger (10) is supported by being tilted backward, and is driven along the chain guides (17a to 17e) that are provided above the assembly line (L) to suspend the hanger (10). A chain (16) that moves from one side of the assembly line (L) to the other side, and a hanger (1) that is moving by guiding the guide rollers (33, 35) provided on the hanger (10).
Guide rails (36a, 36b; 37a ~ 37) that regulate the posture of (0)
c) A conveyor device for an automobile seat, comprising: