JPH09323678A - Car seat conveyor - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To effectively convey a sheet to a plurality of types of vehicles having different numbers of rows of sheets and different types of sheets without making a significant change to an existing sheet conveying line. SOLUTION: In addition to a main conveyance line Lm for supplying a front seat FR and a separable rear seat SR that can be separated into a back portion and a seat portion to a general small-sized ordinary passenger car n,
Sub-conveyance lines Ls for supplying the left and right rear seats RR other than the front seat FR and the separate type rear seat SR and the left and right middle seats MI are provided in vehicles a and b of other models. The empty pallets P ₂ from which the rear sheets RR and the middle sheets MI have been discharged at the rear sheet / middle sheet assembling station S ₃ provided on the sub transport line Ls are stacked on the carriage D and returned to their original positions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat conveying apparatus for conveying a plurality of types of vehicle seats from a sheet supply station to a sheet assembling station.

[0002]

2. Description of the Related Art Conventionally, when a plurality of types of automobile seats are conveyed from a seat supply station to a plurality of seat assembling stations provided on an automobile assembly line, a front seat and a rear seat for one automobile are converted into one pallet. The front seat was conveyed to the front seat assembling station and the rear seat was conveyed to the rear seat assembling station while being placed and passing through the rear seat assembling station and the front seat assembling station on one sheet conveying line. .

[0003]

By the way, in the conventional automobile sheet conveying apparatus, from the viewpoint of simplifying the sheet conveying line and reducing the equipment cost, one front pallet and one rear pallet for one automobile is used. However, in the case of a three-row seat type vehicle that is equipped with a middle seat in addition to the front seats and rear seats, the front seats and rear seats can be mounted on one pallet. Also, since it is difficult to place and convey the middle sheet, there is a problem that work efficiency is significantly reduced in the existing sheet conveying line.

The present invention has been made in view of the above-mentioned circumstances, and it is possible to convey a sheet to a plurality of types of automobiles having different numbers of rows of sheets and kinds of sheets without making a great change to an existing sheet conveying line. The purpose is to be able to do it effectively.

[0005]

In order to achieve the above-mentioned object, the invention described in claim 1 has at least a front seat and a separate rear seat that can be divided into a back part and a seat part as one pallet. In the apparatus for transporting a vehicle seat, the vehicle is provided with a main transport line for transporting from a seat supply station to a rear seat assembly station and a front seat assembly station provided on the vehicle assembly line, wherein the rear seat is installed on the vehicle assembly line. An auxiliary assembling station is provided separately from the assembling station and the front seat assembling station, and a sub-conveying line is provided so as to pass through this auxiliary assembling station, and seats other than the front seat and the separate rear seat are placed independently. Attach the pallet to the auxiliary assembly using the auxiliary transport line Characterized by conveying the station.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, the sub-conveyance line is provided with a pallet for placing sheets other than front sheets from a sheet supply station through an auxiliary assembling station. A first sub-conveying line that conveys the pallets, a pallet transfer device that transfers the empty pallets to the trolley positioned by the trolley-positioning device provided at the downstream end of the first sub-conveyance line in a stacked state, and an empty pallet A second sub-transport line on which a trolley equipped with
It is characterized in that it comprises a third sub-conveying line which receives an empty pallet mounted on a carriage at the downstream end of the second sub-conveying line and conveys it to the sheet supply station.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described based on embodiments of the present invention shown in the accompanying drawings.

FIGS. 1 to 17 show an embodiment of the present invention. FIG. 1 is a first schematic diagram of an automobile seat conveying apparatus, and FIG. 2 is a second schematic diagram of an automobile sheet conveying apparatus. FIG. 3 is FIG.
3 is an enlarged arrow view of FIG. 4, FIG. 4 is a four-direction arrow view of FIG.
Is a view from the direction of arrow 5 in FIG. 3, FIG. 6 is a sectional view taken along line 6-6 of FIG.
7 is a sectional view taken along line 7-7 of FIG. 6, FIG. 8 is a sectional view taken along line 8-8 of FIG. 6, FIG. 9 is a view taken in the direction of arrow 9 in FIG. 3, and FIG.
11 is a sectional view taken along line 12-12 of FIG. 10, and FIG. 13 is a sectional view taken along line 13--12 of FIG.
13 is a sectional view taken along line 13, FIG. 14 is a sectional view taken along line 14-14 of FIG. 3, FIG. 15 is a sectional view taken along line 15-15 of FIG. 14, and FIG.
FIG. 17 is a view in the direction of arrow 6 and FIG.

First, a schematic structure of an automobile seat conveying apparatus will be described with reference to FIGS. 1 and 2. FIG.
2 is integrated by abutting the AA line of FIG. 1 and the AA line of FIG.

In the automobile assembly line La, in addition to the N type vehicle n, which is a general small-sized ordinary passenger car, having left and right front seats FR and separate rear seats SR that can be separated into the back and seat, A type vehicle a having a front seat FR and left and right rear seats RR, a B type having left and right front seats FR, left and right middle seats MI, and a separate rear seat SR that can be separated into a back portion and a seat portion. The vehicle b mixes and flows. An automobile sheet conveying device for conveying a sheet to an N type vehicle n, an A type vehicle a and a B type vehicle b is composed of a main conveying line Lm and a sub conveying line Ls, and the sub conveying line Ls is further provided. First sub-transport line Ls
₁ , second sub-transport line Ls _2, and third sub-transport line L
Includes s ₃ .

The main transport line Lm is a truck T stopped on a platform provided at the sheet supply station S _0.
1 packing material consisting only of the front seat FR taken out from the packing box N _1, or the first pallet P ₁ mounted with the package consisting of the front seat FR and Separate rear seat SR, Separate rear seat assembly station S ₁ Also, the first pallets P ₁ that have been emptied after being conveyed via the front sheet assembling station S ₂ are stacked and returned to the sheet supply station S ₀ .

First sub-transport line Ls₁The platform
Truck T stopped at Mu_TwoPacking box N _TwoRi taken out from
Packed item consisting only of Yaseat RR, or middle sheet
The second pallet P on which the package consisting of MI only is placed
_TwoThe rear seat / middle seat assembly station S_Three
Via the second sub-transport line Ls_TwoTransport to the upstream end of
And then the second pallet P that became empty_TwoAre stacked on trolley D
Things.

Second sub-transport line Ls_TwoIs the second Palais in the sky
Tut P_TwoThe trolley D equipped with the 3rd sub-transport line Ls_ThreeWhat
And the third sub-transfer line.
Ls _ThreeIs an empty second pallet P received from the truck D_Two
Sheet feeding station S ₀It is to be transported to.

Next, the structure of the main transport line Lm will be described in detail.

As shown in FIGS. 1 and 2, an upper stage connecting portion 1 and a fixed lower stage connecting portion 2 which are vertically swingable are provided at the upstream end of the main transport line Lm so as to vertically overlap with each other. When the connecting portion 1 is laid down in the horizontal state, the first pallet P ₁ can be carried out from the upper stage of the load box N ₁ of the truck T ₁ formed in the upper and lower two stages, and the lower connecting portion 2 allows the load box N _{2 to be} conveyed. The first pallet P ₁ can be carried out from the lower stage. The upper stage connecting portion 1 and the lower stage connecting portion 2 are connected by an elevating table 3, and the elevating table 3 transfers the first pallet P ₁ from the lower stage connecting portion 2 to the conveyor 4 which is continuous at the same height as the upper stage connecting portion 1. Can be reprinted.

On the downstream end of the conveyor 4, the conveyor 4
First pallet P₁Elevating table for transferring
Cable 6 is provided and at the downstream end of the conveyor 5.
Is the first pallet P on the conveyor 5.₁Move to conveyor 7
An elevating table 8 for mounting is provided. Conveyor 5
Is placed at a position higher than the conveyors 4 and 7.
As a result, the first sub-transportation line is placed below the conveyor 5.
Inn Ls₁Can be part of. Conveyor 7
Of the first pallet P on the conveyor 7 at the downstream end of ₁The con
The separate rear sea provided at the upstream end of the bear 9.
Assembly station S₁Lifting table for transfer to
10 are provided. Separate type rear seat assembly stay
Option S₁Pareto type coconut that has been transported to the vicinity of
A turntable that temporarily stores the SR
A buffer 20 is provided.

An elevating table 12 for transferring the first pallet P ₁ on the conveyor 9 onto the conveyor 11 is provided at the downstream end of the conveyor 9, and the first pallet on the conveyor 11 is provided at the downstream end of the conveyor 11. P ₁ to conveyor 13
A turntable 14 is provided for transferring to. The downstream end of the conveyer 15 connected to the conveyer 13 is connected to the conveyer 17 via the elevating turntable 16, and the conveyer 18 connected to the conveyer 17 reaches the pallet stacking station S ₄ near the upstream end of the conveyer 4. The first pallet P ₁ stacked in the pallet stacking station S ₄ is discharged to the conveyor 19 and then the conveyor 1
From the downstream end of 9 is transferred to the lower connecting portion 2 by an operator.

Next, the schematic structure of the first sub-transport line Ls ₁ will be described in detail.

As shown in FIGS. 1 and 2, an upper stage connecting portion 21 which is vertically swingable is provided at the upstream end of the first sub-transport line Ls _1.
Also, fixed lower tier connecting portions 22 are provided so as to vertically overlap with each other. When the upper tier connecting portions 21 are laid down horizontally, the second pallet P from the upper tier of the cargo box N ₂ of the truck T ₂ formed in the upper and lower tiers. ₂ can be carried out, and the _second connecting portion 22 can carry out the second pallet P ₂ from the lower stage of the packing box N ₂ . The upper connection part 21 and the lower connection part 22 are connected by an elevating table 23, and the elevating table 23 transfers the second pallet P ₂ from the lower connection part 22 to the conveyor 24 connected at the same height as the upper connection part 21. Can be reprinted.

At the downstream end of the conveyor 24 extending parallel to the conveyors 4 and 5 of the main transport line Lm, the conveyor 24
An elevating table 26 is provided for transferring the upper second pallet P ₂ onto the conveyor 25. The conveyor 25 traverses the lower side of the conveyor 5 of the main transport line Lm at a right angle, and the rear sheet / middle sheet assembling station S ₃ is provided at the crossing point. The second pallet P emptied by discharging the rear seat RR or the middle seat MI at the rear seat / middle seat assembling station S ₃ .
₂ are stacked on the truck D at the downstream end of the conveyor 25.

Next, the structure of the conveyor 25 of the first sub-transport line Ls ₁ will be described with reference to FIGS. 3 and 4.

The drive shaft 3 is attached to the end of the machine frame 31 of the conveyor 25.
2 is rotatably supported, and a pair of left and right endless chains 34 with rollers for mounting and transporting the second pallet P ₂ on a pair of left and right circulating sprockets 33, 33 provided on the drive shaft 32. 34 is wrapped around. Drive shaft 3
The endless chain 38 is wound around the driven sprocket 35 provided at one end of the motor 2 and the drive sprocket 37 provided at the motor 36. Therefore, when the motor 36 is driven, the drive sprocket 37, the endless chain 38, the driven sprocket 35, the drive Shaft 32 and sprocket for circulation 33, 3
The chains with rollers 34, 34 circulate through 3 to convey the second pallet P ₂ .

Next, the structure of the pallet transfer device 41 on the first sub-transport line Ls ₁ will be described with reference to FIGS. 3 to 8.

The pallet transfer device 41 is for transferring the second pallet P ₂ on the conveyor 25 to the carriage D, and includes a machine frame 42 extending in the same direction as the conveyor 25 and suspended and supported from the ceiling. . The frame body 44 suspended and supported by a pair of guide rails 43, 43 laid on both left and right sides of the machine frame 42 includes a plurality of support rollers 45 rolling on the upper surfaces of the guide rails 43, 43, and the guide rail 43. and a plurality of rolling the sides of the 43 guide rollers 46 ... and an output rod 47 in a cylinder 47 provided on the machine frame 42 ₁
It can be connected to and moved back and forth.

A pair of slide guides 4 provided on the frame body 44
An elevating substrate 50 is supported by 8, 8 via slide rods 49, 49 so as to be vertically movable. The rotating shaft 51 supported by the frame 44 is provided with hanging sprockets 52, 52, and the other ends of the hanging chains 53, 53 having one ends connected to the hanging sprockets 52, 52 are moved up and down. It is attached to the substrate 50. A drive sprocket 55 provided on a motor 54 supported on the frame 44 and the rotary shaft 51.
Is connected to the driven sprocket 56 provided in the endless chain 57, and the elevating board 50 can be moved up and down by driving the motor 54 to rotate the rotating shaft 51 forward and backward. Incidentally, reference numerals 58a, 58b, 58c in FIG.
Detects the height of the elevating board 50 and stops each elevating board 50 at a predetermined position.
It is a limit switch operated by dogs 59, 59 provided on the upper ends of 9, 49.

Four guides provided on the lower surface of the lifting board 50
A pair of grips on the rails 60 via slide members 61.
The arms 62, 62 are openably and closably supported. Both gripping arms
The cylinders 62, 62 are mounted on the lift board 50.
Open and close, and the hook formed on the lower end of the second pallet P
_TwoCan be gripped. Incidentally, reference numeral 64 in FIG.
Is supported on the lower surface of the lifting board 50 so that it can be lifted and lowered.
Is a pressing member that is urged downward by the
The second pallet P gripped by the holding arms 62, 62 _TwoTop of
Elastically abutting against the gripping arms 62, 62
Second pallet P _TwoIs surely gripped.

Next, the structure of the carriage D moving on the second sub-transport line Ls ₂ will be described with reference to FIGS. 9 to 13.

The dolly D includes a rectangular frame 72 supported on the floor by four casters 71, and a pusher 73 which is erected at the rear end of the frame 72 and is pushed by an operator when moving the dolly D. , Two front and rear rows of free roller conveyors 74, 74 laid in the left-right direction on the upper surface of the frame 72. In order to position the second pallet P ₂ placed on the free roller conveyors 74, 74, two front stoppers 7 are provided so as to surround the free roller conveyors 74, 74.
5, 75, two rear stoppers 76, 76, two left side stoppers 77, 77, and one right side stopper 7
And 8 are provided. In order to discharge the second pallet P ₂ placed on the free roller conveyors 74, 74, the right side stopper 78 can be manually raised and lowered by a stopper operating mechanism 79.

That is, the right side stopper 78 is the frame 72.
Is fixed to the front end of a pivot 80 extending rearward along the right side of the link 80, and the lower end of a link 83 is pivotally supported by a pin 82 at the tip of an arm 81 fixed to the rear end of the pivot 80. A pair of brackets 8 of the support member 94 provided on the carriage D
The lower ends of the leg portions 86 ₁ and 86 ₁ that are bifurcated of the operating lever 86 are pivotally supported by the pins 4 and 84 via the pins 85 and 85. Links 88, 88 whose one ends are pivotally supported via pins 87, 87 inside the leg portions 86 ₁ , 86 ₁ of the operating lever 86.
The other end of is connected to the middle portion of the link 90 via a pin 89. The link 90 has a pin 91 at one end.
While being pivotally supported by the pair of brackets 84, 84 via the
Pivoted at the top of.

When the operating lever 86 is in the position indicated by the solid line in FIG. 12 and the right side stopper 78 is erected, the operating lever 86 is tilted around the pins 85, 85 in the direction of arrow a, and the links 88, 88 are formed. The link 90 pulled up by 90 ° stands upright at 90 ° from the horizontal position, and the link 83 pulled by this link 90 is pulled up in the direction of arrow b. As a result, the pivot 80 rotates via the arm 81, and this pivot 8
The right side stopper 78 fixed to 0 is laid down by 90 ° in the direction of arrow c from the solid line position to the chain line position. On the contrary, by operating the operation lever 86 from the chain line position in FIG. 12 to the solid line position, the right side stopper 78 stands 90 ° from the chain line position to the solid line position. Reference numeral 93 is a limit switch for confirming the fall of the right side stopper 78, and confirms that the right side stopper 78 is in the fall state when the carriage D is positioned by the first carriage positioning device 101 described later. To do.

Next, the structure of the first carriage positioning device 101 for positioning and locking the carriage D at a predetermined position below the pallet transfer device 41 will be described with reference to FIGS. 14 and 15.

The first carriage positioning device 101 comprises a pair of front and rear guide rollers 102, 10 provided on the lower surface of the front portion of the carriage D.
2 (see FIGS. 10 and 11) is provided with a pair of left and right guide rails 103, 103, and the inlet end portions of the guide rails 103, 103 are provided with expansion portions 103 ₁ , 103 ₁ that expand left and right. Constituting guide rollers 102, 1
You can guide 02 smoothly.

Between the left and right guide rails 103, 103,
Fixed stopper 10 for locking the front guide roller 102
4 and a movable stopper 105 are provided. The movable stopper 105 is pivotally supported by a pin 106, is connected to an output rod 107 ₁ of a cylinder 107 and swings, and clamps and fixes the front guide roller 102 between the fixed stopper 104 and the fixed stopper 104. One guide rail 103 has a dolly D
Limit switches 1 for detecting the presence of two dolly seats, which are operated by contacting the two guide rollers 102, 102, respectively.
08 and 108 are provided.

As shown in FIG. 1 and FIG.
Inn Ls_TwoIs an empty second pallet P _TwoTrolleys stacked
It consists of a passage for the worker to push and move D.
From the first carriage positioning device 101 to a second
It extends to a truck positioning device 125.

Next, the structure of the third sub transport line Ls ₃ will be described with reference to FIGS. 16 and 17.

[0036] The first is connected to the auxiliary transfer line Ls ₁ of the lifting table 23, a conveyor 11 and provided below the upstream end of the first conveyor 24 of the auxiliary transfer line Ls ₁
1, a drive shaft 113 and driven shafts 114, 114 are rotatably supported at both ends of a machine frame 112, and a pair of left and right circulation sprockets 115, provided on the drive shaft 113.
115 and the pair of left and right circulation sprockets 116, 116 provided on the driven shafts 114, 114, the second pallet P ₂
A pair of left and right endless chains 117 and 117 for mounting and transporting the rollers are wound around. The driven sprocket 118 provided on one end of the drive shaft 113 and the drive sprocket 120 provided on the motor 119 are connected to the endless chain 121.
When the motor 119 is driven, the drive shaft 113 rotates via the drive sprocket 120, the endless chain 121, and the driven sprocket 118, and the chains 117 and 117 with rollers circulate and the second pallet P ₂ is generated. Be transported.

A pair of left and right photocell sensors 122, 122 are provided at the upstream end of the conveyor 111, and the second pallet P ₂ discharged from the dolly D positioned by a second dolly positioning device 125 described later is the phototube sensor. When the light is passed through between 122 and 122, the motor 119
Rotates to drive the conveyor 111.

The first pallet P is transferred from the carriage D positioned by the second carriage positioning device 125 to the conveyor 111.
_A pair of auxiliary rollers 123, 123 are provided at the upstream end of the conveyor 111 so that the sheet ₂ can be transferred smoothly.
Further, a pair of left and right guide members 124, 124 are provided on the machine frame 112 to guide both sides of the second pallet P ₂ conveyed on the conveyor 111.

Second provided on the upstream side of the conveyor 111
The dolly positioning device 125 includes a pair of left and right guide rails 126, 126 for guiding the pair of front and rear guide rollers 102, 102 provided on the lower surface of the front portion of the dolly D, and the inlet end portions of the guide rails 126, 126 are The expanding portions 126 ₁ and 126 ₁ that expand to the left and right are configured so that the guide rollers 102 and 102 can be smoothly guided. The guide roller 126 is attached to the guide rails 126, 126.
A pair of left and right stoppers 127, 127 are provided to position the tip of the carriage D guided by the 2, 102.

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

When assembling the left and right front seats FR and the separate type rear seats SR which can be separated into the back and the seats into the N type vehicle n which is a general small passenger car, the main transport line Lm is used. It That is, the packing box N ₁ of tracks T ₁ which is stopped in the sheet supply station S _0, and left and right front seat FR, the first pallet P ₁ of mounting the separable Separate rear seat SR to the back and seat It is taken out and conveyed to the separate type rear sheet assembling station S ₁ via the conveyor 4, the elevating table 6, the conveyor 5, the elevating table 8, the conveyor 7 and the elevating table 10. At the separate type rear seat assembling station S ₁ , the worker operates the first pallet P ₁
The separate type rear seat SR is taken out from and stored in the buffer 20, and the separate type rear seat SR stored in the buffer 20 is attached to the N type vehicle n flowing through the assembly line La.

The first pallet P ₁ on which the separate type rear seat SR is taken out and only the front seat FR is placed
Is conveyed from the separate type rear sheet assembling station S ₁ to the front sheet assembling station S ₂ by the conveyor 9, the lifting table 12, the conveyor 11, the turntable 14 and the conveyor 13. Then, at the front seat assembling station S ₂ , the robots R, R take out the front seat FR from the first pallet P ₁ and assemble it to the flowing N type vehicle n on the automobile assembly line La.

Empty first pallet P₁The conveyor
13, conveyor 15, lifting turntable 16, conveyor
Stations for stacking pallets from 17 and conveyor 18
S _FourIt is transported to and stacked. Pallet stacking
Option S_FourFirst pallet P stacked on₁Is a comb
A is transferred to the lower connecting section 2 by the worker.
Track T on₁Packing box N₁Mounted on

When assembling the left and right front seats FR and the left and right rear seats RR to the A type vehicle a,
The main transport line Lm and the sub transport line Ls are used together.
That is, the packing box N ₁ of tracks T ₁ which is stopped in the sheet supply station S _0, the first pallet P ₁ that the left and right front seats FR placement of is fetched, the main transfer line Lm on the front seat assembly station S ₂ Transported,
Then, the robots R and R are assembled to the A type vehicle a flowing on the automobile assembly line La. Then, the emptied first pallet P ₁ is returned to the packing box N ₁ of the truck T _{1 through} the above-mentioned path.

On the other hand, the second pallet P ₂ on which the left and right rear sheets RR are placed is taken out from the packing box N ₂ of the truck T ₂ stopped at the sheet supply station S _0, and the conveyor 24 of the first sub-transport line Ls ₁ It is conveyed to the rear sheet / middle sheet assembling station S ₃ by the lifting table 26 and the conveyor 25. At the rear seat / middle seat assembling station S ₃ , the worker works on the second pallet P.
_Take out the rear seat RR from ₂ and set the car assembly line L
Assemble a into a flowing A type vehicle a.

When assembling the left and right front seats FR, the left and right middle seats MI, and the separate rear seat SR that can be separated into the back and the seat, to the B type vehicle b, the front seat FR and the separate rear seats are used. while conveying the first pallet P ₁ mounted with the SR by the main transfer line Lm, with mounting the separate rear seat SR in separate rear seat assembly station S _1, assembled front seat FR in the front seat assembly station S ₂ And then empty first pallet P
₁ is returned to the sheet supply station S ₀ .

On the other hand, the second pallet P ₂ on which the left and right middle seats MI are placed is taken out from the packing box N ₂ of the truck T ₂ stopped at the seat supply station S ₀ and is transferred to the rear seat / middle seat assembling station S ₃ . The middle sheet MI is conveyed, and the worker mounts the middle sheet MI on the B-type vehicle b flowing on the assembly line La.

In both the case of the A-type vehicle a and the B-type vehicle b, the second pallet P ₂ emptied of the rear seat RR or the middle seat MI at the rear seat / middle seat assembling station S ₃ is removed. Is
The sheet is returned to the sheet feeding station S ₀ through the same path described below.

The return path for the emptied second pallet P ₂ will be described below. The empty bogie D is the first bogie positioning device 1
Positioned at the downstream end of the conveyor 25 by 01,
The empty second pallet P ₂ is transferred from the downstream end of the conveyor 25 onto the carriage D by the pallet transfer device 41. Pallet transfer device 41 in which frame 44 is stopped above conveyor 25
Drives the motor 54 to lower the elevating board 50, and then drives the cylinder 63 to drive the pair of gripping arms 62, 6
By moving 2 closer, the second on the conveyor 25
Grasp the pallet P ₂ . The gripping arms 62, 62 are second
When the pallet P ₂ is gripped, the motor 54 is again driven to raise the lifting / lowering substrate 50 together with the gripped second pallet P ₂ , and subsequently the cylinder 47 is driven to move the frame body 44 above the carriage D. Then, the motor 54 is driven to drive the frame 4
4 is lowered and then the cylinder 63 is driven to open the gripping arms 62, 62, whereby the gripped second pallet P
Transfer ₂ to trolley D. Then, by repeating the above work, a predetermined number of second pallets P ₂ can be stacked on the trolley D.

In this way, a predetermined number of second pallets P
_The dolly D having the two stacked is moved by being pushed by the worker on the second sub-transport line Ls ₂ , and is positioned by the second trolley positioning device 125 provided at the upstream end of the third sub-transport line Ls _3. . Subsequently, the worker operates the operation lever 86 of the carriage D to lay down the right side stopper 78 in a horizontal posture and press the stacked second pallets P ₂ toward the conveyor 111. At that time, when the photoelectric tube sensors 122, 122 detect the second pallet P ₂ , the conveyor 111 is driven and the second pallet P ₂ is automatically discharged from the dolly D, and passes through the lifting table 23 and the packing box of the truck T ₂ . It is conveyed toward N ₂ .

As explained above, the rear seat assembly
Option S₁And front seat assembly station S_Two
In addition to the rear seat / middle seat assembly station S_Three
The sheet feeding station S₀From the rear sea
To / Middle Sheet Assembly Station S_ThreeOn the rear seat
Second pallet P on which RR or middle sheet MI is placed _Two
The first sub-transport line Ls₁Empty after being transported by
Second pallet P_TwoThe second sub-transport line Ls_TwoAnd the third
Sub transport line Ls_ThreeThrough the sheet feeding station S₀
Since it has been returned to the
In addition to N-type vehicle n, which is a typical small passenger car,
The right front seat FR and the left and right rear seats RR
A type vehicle a and front left and right FR seats
The left and right middle seats MI can be separated into the back and seat.
B-type car with active separate rear seat SR
Efficient production, even when producing a mixture of both b
It can be performed. Moreover, the existing main transport line Lm
Add sub-transport line Ls with almost no modification
Since it can be implemented simply by installing it, the equipment cost is low.

In the sub-transport line Ls, the empty second pallets P ₂ are stacked on the trolley D and transported in the second sub-transport line Ls ₂ , so that the equipment cost of the sub-transport line Ls can be suppressed. . Therefore, even if the number of A-type vehicles A and B-type vehicles b using the sub-transport line Ls is small, the economic burden is small.

Although the embodiments of the present invention have been described in detail above, the present invention can be modified in various ways without departing from the scope of the invention.

[0054]

As described above, according to the invention described in claim 1, the auxiliary assembly station is provided in the automobile assembly line in addition to the rear seat assembly station and the front seat assembly station, and the auxiliary assembly station is provided. A sub-conveyance line is provided so as to pass through the attachment station, and a pallet for separately loading front sheets and separate rear seats is conveyed to the auxiliary assembling station by the sub-conveyance line. Vehicles other than general small-sized ordinary passenger cars having a separate rear seat and a separable rear seat (for example, vehicles having left and right front seats and left and right rear seats, left and right front seats, left and right middle seats) And a separate rear seat that can be separated into a back portion and a seat portion) Even in the case of mixed production,
Efficient production can be performed without lowering production efficiency. Moreover, since it is only necessary to add a sub-conveying line with almost no modification to the existing main conveying line,
There is no increase in equipment costs.

According to the invention described in claim 2,
Efficiently transporting a pallet on which sheets other than the front sheet are placed from the sheet supply station to the auxiliary assembly station, and returning the empty pallet from which the sheets have been discharged to the sheet supply station to the auxiliary assembly station. You can Moreover, by stacking empty pallets on a trolley and transporting them, the facility cost of the sub-transport line can be reduced, so that even if the number of models using the sub-transport line is small, the economic burden will be reduced. It can be small.

[Brief description of drawings]

FIG. 1 is a first partial view of an automobile seat conveying device.

FIG. 2 is a second partial view of an automobile seat conveying device.

FIG. 3 is an enlarged view in the three directions of FIG.

FIG. 4 is a four-direction arrow view of FIG.

FIG. 5 is a view in the direction of arrows in FIG. 3;

6 is a sectional view taken along line 6-6 of FIG.

FIG. 7 is a sectional view taken along line 7-7 of FIG. 6;

8 is a sectional view taken along line 8-8 in FIG. 6;

9 is a view in the direction of arrow 9 in FIG.

FIG. 10 is a view taken in the direction of arrow 10 in FIG. 9;

FIG. 11 is a view taken in the direction of arrow 11 in FIG. 9;

FIG. 12 is a sectional view taken along line 12-12 of FIG. 10;

13 is a sectional view taken along line 13-13 of FIG.

14 is a sectional view taken along line 14-14 of FIG.

15 is a sectional view taken along line 15-15 of FIG.

16 is a view from the 16 direction of FIG.

FIG. 17 is a 17-direction arrow view of FIG.

[Explanation of symbols]

La Automobile assembly line Lm Main transfer line Ls Sub transfer line Ls ₁ First sub transfer line Ls ₂ Second sub transfer line Ls ₃ Third sub transfer line P ₁ First pallet (pallet) P ₂ Second pallet (pallet) S ₀ seat supply station S ₁ rear seat assembly station S ₂ front seat assembly station S ₃ auxiliary assembly station FR front seat SR separate rear seat MI middle seat (non-front seat) RR rear seat (non-front seat) 42 Pallet transfer device 101 First trolley positioning device (trolley positioning device)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukio Souuri 197 I, Kumasaka-cho, Kaga-shi, Ishikawa Daido Industry Co., Ltd.

Claims (2)

[Claims] 1. At least a front seat (FR)
And separate rear seat that can be divided into back and seat
(SR) and one pallet (P₁), And then
Supply station (S₀) To automobile assembly line (L
Rear seat assembly station (S)₁)as well as
Front seat assembly station (S_Two) Carried to the main
Car seat transport device with transport line (Lm)
In the automobile assembly line (La), the rear seat assembly seat
Station (S₁) And station with front seat
(S_Two) And auxiliary assembly station (S _Three)
This auxiliary assembly station (S_Three)
A sub-transport line (Ls) is installed to
Except for seats (FR) and separate rear seats (SR)
Pallets (P, P) on which individual sheets (RR, MI) are placed individually
_Two) Through the auxiliary transport line (Ls)
Station (S_Three) Cars characterized by being transported to
Sheet conveying device. 2. A sheet (RR, MI) other than a front sheet (FR) is attached to the sub-conveyance line (Ls).
Pallet to be placed (P _Two) The sheet feeding station
(S₀) To the auxiliary assembly station (S_Three) Via
First sub-transport line (Ls)₁) And the first sub-transport line (Ls₁Position of the trolley provided at the downstream end of
The dolly (D) positioned by the deciding device (101) is empty.
Pallet (P_Two) Pallet transfer
Loading device (41) and empty pallet (P_Two) Mounted dolly (D) runs
Second sub-transport line (Ls_Two) And the second sub-transport line (Ls_Two) At the downstream end of
An empty pallet (P_Two) Before receiving
Sheet supply station (S₀) To the third sub-transport
Transmission line (Ls_Three) And
The apparatus for transporting a vehicle seat according to claim 1, further comprising: