JPH06104343B2 - Upholstery trim manufacturing method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for manufacturing a cloth-covered trim having a substantially inverted U-shaped cross section in which a decorative cloth is attached to the outer peripheral surface.

<Prior Art and Its Problems> Conventionally, when manufacturing a cloth trim, it has been carried out as follows (Japanese Patent Laid-Open No. 62-222834, Japanese Patent Laid-Open No. 63-7873).
(See No. 7, etc.)

First, the periphery of a metal insert is covered with rubber or the like by extrusion to form a substantially flat plate-shaped trim body.

Then, after vulcanization, a predetermined adhesive is applied to a predetermined position of the trim body by a roller or the like, and a decorative cloth is continuously attached.

After that, the cross section was bent into a substantially inverted U-shape to sequentially manufacture upholstered trims of a predetermined shape.

However, in the conventional manufacture of the upholstered trim, since the decorative cloth is attached and then bent, the decorative cloth stretches at the corner portion of the trim cross section. Therefore, in the corner section of the trim cross section, the density of brushing of the decorative cloth is reduced,
There is a possibility that the appearance of the trim may be deteriorated or that the decorative cloth at the corner of the trim cross section may be broken when the trim is bent and attached to a predetermined portion.

The present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a method for manufacturing a cloth trim that can prevent the deterioration of the appearance and prevent the decorative cloth from breaking even when it is bent at the time of mounting. .

<Means for Solving the Problems> A method for manufacturing a cloth-covered trim according to the present invention is a method for manufacturing a cloth-covered trim having a substantially inverted U-shaped cross section in which a decorative cloth is adhered to an outer surface thereof. ) A trim main body forming step of forming a substantially flat plate-shaped trim main body by coating an elastic polymer around the insert by extrusion molding, (b) a bending step of bending the trim main body to make a substantially inverted U-shaped cross section , (C) an adhesive applying step of applying an adhesive to a predetermined position of the bent trim main body, (d) a cloth tensioning step of attaching a decorative cloth to the adhesive-applied trim main body, (e) a decorative cloth The trim main body is attached to the trim body, and the trim body is bent into a cross section of the final product shape, finely adjusted, and cut into a predetermined length.

<Operations and Effects of the Invention> In the method of manufacturing a cloth trim according to the present invention, the trim main body formed into a substantially flat plate shape by extrusion molding is bent in advance and the cross section thereof is substantially inverted U before the decorative cloth is attached. After forming the letter shape, an adhesive is applied at a predetermined position, a decorative cloth is attached, and then fine adjustment bending processing and cutting are performed to manufacture a cloth trim.

That is, in the method for manufacturing the upholstered trim according to the present invention, since the decorative cloth is pasted on the trim main body whose cross section is already bent into a substantially inverted U shape, the conventional manufacturing method in which the decorative cloth is pasted and then bent. Compared to, even if the bending process is performed again for fine adjustment after upholstering, the decorative fabric of the upholstered trim does not stretch, and there is little change in the brushing density of the decorative fabric, and the appearance of the upholstered trim It can prevent the deterioration. Further, even if the manufactured cloth-covered trim is bent and attached to a predetermined portion, the decorative cloth is less stretched in advance, so that the decorative cloth can be prevented from breaking. Further, since the fine adjustment bending process is performed after the cloth tension process, the shape of the final product can be made constant.

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 2, the cloth-covered trim 1 manufactured in the embodiment has a substantially U-shaped cross section, and a decorative cloth 3 made of napped polyester fiber or the like at a predetermined position on the outer peripheral surface of the trim body 2. The trim main body 2 is configured by covering a fish bone-shaped sheet metal insert 2a with a solid portion 2b and a sponge portion 2c each made of EPDM or the like.

The upholstered trim 1 is manufactured on the manufacturing line shown in FIG.

Explaining this production line, this production line is configured to be able to perform a trim body forming step I, a vulcanization step II, a bending step III, an adhesive applying step IV, a cloth tensioning step V, and a finishing step VI. ing. In the production line, 16 is a take-up machine arranged in the middle of the line,
Is a guide roller that makes the trim body 2 make a U-turn.

The device used in the trim main body molding step I is the same as the conventional one that pulls in the insert 2a wound on the reel and extrusion-molds the trim main body 2 having a substantially flat cross section as shown in FIG. Extruder 4.

The equipment used in the vulcanization step II is the vulcanization tank 5 such as UHF / HAV for vulcanizing the extruded trim body 2 as in the conventional case.
And the cooling tank 6 for cooling the trim body 2 after vulcanization.

The apparatus used in the bending step III is a known bending machine 7 that bends the trim body 2 from a substantially flat plate-shaped cross section to a substantially inverted U-shaped cross section as shown in FIG.

The apparatus used in the adhesive application step IV includes a primer applying apparatus 8 for applying a primer P to a predetermined portion of the trim body 2, an air cooling tank 9 for air cooling the trim body 2 after applying the primer P, and a trim body 2 after air cooling. There are an adhesive applying device 10 for applying the adhesive B (see FIG. 4) to the predetermined four places, and a drying furnace 11 for drying the trim body 2 after applying the adhesive B. The air-cooling tank 9 and the drying furnace 11 are known.

As shown in FIGS. 6 and 7, the primer applying device 8 is for applying the primer P by dropping it onto the trim main body 2 to be conveyed, and includes the tank 21, the tray 25, the hose 27, and the flow rate regulator 29. It is equipped with.

The tank 21 stores the primer P therein and is hermetically sealed, and has a cylindrical portion 22 that extends downward to let the primer P flow out. The tank 21 is held by a holding frame 23 in which a temperature adjusting pipe 24 in which water of a predetermined temperature is circulated is embedded, and is arranged above the trim main body 2 to be transported. The holding frame 23 is fixed to the frame 20 of the primer applying device 8.

The tray 25 is held by a holding frame 26 fixed to the frame 20, and is arranged above the trim body 2 and below the tank 21. The tray 25 has an opening at the top to insert the cylindrical portion 22 therein, and the primer P stored therein is stored.
The liquid surface of is substantially configured to match the lower end of the tubular portion 22. A temperature adjusting pipe 24, in which water having a predetermined temperature is circulated, is also embedded in the holding frame 26.

The hose 27 is inserted from the lower part of the pan 25 so that one end thereof is arranged below the liquid surface of the primer P in the pan 25,
The other end is arranged close to above the primer application position of the trim main body 2 to be conveyed. A nozzle 28 is formed at the other end of the hose 27 so that the primer P can be easily dropped.

The flow rate regulator 29 is held by a bracket 37 fixed to the frame 20. The flow rate adjuster 29 is configured to include a holding plate 30 fixed to the bracket 37 and a holding plate 31 fixed to the holding plate 30 in an orthogonal direction.

A plurality of guide rods 32 are inserted in the holding plate 31 so as to be slidable in the left-right direction in FIG. 7, and a female screw portion 31a having a female screw thread is formed in the center thereof.

The holding plate 30 has a holding pipe 30a fixed therein, which holds the intermediate portion of the hose 27, and an opening 30b is formed in the holding pipe 30a.

Further, a moving plate 33 having a servo motor 35 fixed thereto is connected and fixed to each guide rod 32.

Further, the motor shaft 36 of the servomotor 35 is externally threaded on the outer periphery and screwed into the female screw portion 31a of the holding plate 31, and the tip of the motor shaft 36 is rotatable with respect to the motor shaft 36. A rotatable pressing roller 34, which cannot be removed, is held. Then, when the motor shaft 36 rotates by a predetermined angle, the moving plate 33 moves together with the servomotor 35 while being guided by the guide rod 32 that passes through the holding plate 31, and the pressing roller 34
Presses the hose 27 from the opening 30b of the holding pipe 30a.

The forward / reverse rotation angle of the motor shaft 36 depends on the servo motor.
It will be controlled by a control device 40, which will be described later, that is electrically connected to 35.

Further, in the primer applying device 8 of the embodiment, the trim main body 2 such as the reflection type photoelectric switch is held by the holding arm 39 fixed to the frame 20 above the front position of the nozzle 28 in the carrying direction of the trim main body 2. A sensor 38 for detecting the drip of the dropped primer P is provided. The sensor 38 is electrically connected to the control device 40.

Then, the control device 40 fixed to the frame 20 is a sensor
Based on the electric signal input from 38, the number of drip of the dropped preimer P per unit time is counted so that a predetermined amount of the primer P can be applied to the trim body 2 even if the viscosity of the primer P changes. To the presser roller
The motor shaft 36 is rotated with respect to the servo motor 35 in a predetermined direction by a predetermined angle so that the pressing state of the hose 27 of 34 can be adjusted to adjust the number of drops of the primer P dropped from the nozzle 28 per unit time. It outputs a signal.

41 is a frame 20 using a bracket not shown.
The brushes 42 and 43 are fixed to the frame 20 by using a bracket (not shown) and arranged to convey a predetermined orbit. It is a guide block for guiding and holding the trim main body 2.

The adhesive application device 10 comprises a bending machine 50 and an adhesive dropping device 60, as shown in FIGS. While being transferred from the primer applying device 8 to the adhesive applying device 10, the trim main body 2 to be conveyed is turned upside down by a plurality of guide blocks (not shown).

The bending machine 50 has four rollers 51, 52, 53 which are arranged at the top, bottom, left and right of the cross section of the trim body 2 and are rotatable respectively.
・ Has 54. As shown in FIG. 9, the upper and lower rollers 51 and 52 are arranged so as to sandwich the lateral wall portion 2A of the trim body 2. Further, the left and right rollers 53, 54 are provided with predetermined processing surfaces 53a, 54a, and the left and right side wall portions 2B of the trim body 2
It is arranged so that the opening width of 2C can be narrowed to a predetermined size. In addition, in the bending machine 50, the trim main body 2 bent by the bending machine 7 is deformed so as to slightly widen the opening width of the side wall portions 2B and 2C before being conveyed to the adhesive dropping device 60. , That is to correct the deformation.
Further, 55 is a guide block that supports and inserts the trim main body 2, and 56 is a take-up roller that is rotationally driven so as to convey the trim main body 2.

The adhesive dropping device 60 includes four nozzles 63 for dropping the adhesive B, and each nozzle 63 is supported by a holding arm 62 fixed to a frame 61 of the device 60 and is flexible. It is connected to a tank 65 which stores the adhesive B through a hose 64 having

As shown in FIG. 10, in each tank 65, when the pressurized air flows in from the connected air hose 66, the stored adhesive B can be dripped out from the nozzle 63. It is configured. Incidentally, 67 is a pressure gauge, 68 is a pressure reducing valve, 69 is a stop valve, and 70 is an air source. In addition, each tank 65 is arranged floating in a water tank 71 in which water W whose temperature is adjusted by a temperature adjuster 75 is circulated. Inside the water tank 71, the remaining amount of the adhesive B in each tank 65 is detected. The level switch 72 is arranged so that it can be performed.

Positioning guides 73 and 74 having recesses 73a and 74a of a predetermined shape are provided at the front and rear of the adhesive dropping device 60 so that the trim main body 2 to be transferred can be transferred at a predetermined position.
It is fixedly installed at. And the trim body 2
Are configured to be reversed and conveyed between the positioning guides 73 and 74.

And in this adhesive dropping device 60, each nozzle 63A, 63B
・ Adhesive B1 ・ B2 ・ B3 ・ B4 dropped from 63C ・ 63D
So that it can be applied to the specified position of the trim body 2 shown in the figure,
Each nozzle 63A, 63B, 63C, 63D has a holding arm 62
Thus, the trim main body 2 is arranged around the trim main body 2. In addition, the adhesives B1, B2, B3, and B4 dropped from the nozzles 63A, 63B, 63C, and 63D are for improving the appearance of the upholstered trim 1 at the time of use after attaching the decorative cloth 3. , Of different nature are used. Specifically, as the adhesive B1 applied to the inner peripheral side of the trim body 2, one having the highest adhesive strength and hardness after curing is used.
The adhesive B4 applied to the outer peripheral surface of the lateral wall portion 2A is a soft one that can be applied thinly and has low hardness after curing. Further, the adhesive B3 applied to the outer peripheral surface of the side wall portion 2B
Is used because it can be applied thinly and has high adhesive strength.Adhesive B2 applied to the end of side wall 2C is adhesive B4 and adhesive.
It has a property intermediate to that of B3. The adhesive B is not applied to the outer peripheral surface of the sponge portion 2c of the trim body 2. The reason is that when the adhesive B is applied to the outer peripheral surface of the sponge portion 2c and the decorative cloth 3 is adhered to it, and when the upholstery trim 1 is bent and attached to a predetermined portion, it is adhered to the outer peripheral surface of the sponge portion 2c. The upholstered trim 1 is made into a sponge portion 2c by the decorative cloth 3
The reason for this is that the predetermined sealing properties (soundproofing, heat retention, etc.) cannot be ensured due to the crushing.

The device used in the cloth tensioning step V is a cloth tensioning device 12 for bonding the decorative cloth 3 (see FIG. 5) to the surface of the trim body 2.
And a curing furnace 13 for curing the adhesive B after cloth upholstery.
The curing furnace 13 is a known one.

As shown in FIG. 11, the cloth tensioning device 12 is composed of a cloth feeding device 80 and a pressing device 90.

As shown in FIG. 11, the cloth feeding device 80 includes a decorative cloth roll 81 around which the decorative cloth 3 is wound, a feeding roller group 82, and a guide 84, which are arranged above the trim main body 2 to be conveyed.
And a pressing member 86.

The feed motor group 82 is composed of a drive roller 82a that is rotationally driven by the motor 83, and a rotatable driven roller 82b that is pressed toward the drive roller 82a. Then, the decorative cloth 3 wound around the decorative cloth roller 81 is sandwiched between the drive roller 82a and the driven roller 82b of the feed roller group 82, and is sent out by the rotational driving of the drive roller 82a. The motor 83 is controlled by a control circuit (not shown) to rotate the drive roller 82a so that the decorative cloth 3 can be fed from the feed roller group 82 in accordance with the conveyance speed of the trim body 2.

The guide 84 corresponds to the cross-sectional shape of the decorative cloth 3 so that the decorative cloth 3 is neatly expanded in the width direction and the decorative cloth 3 is arranged above the trim main body 2 along the conveyance direction of the trim main body 2. The through hole 84a is provided, and the decorative cloth 3 is inserted through the through hole 84a. And this guide 84 is a pressing device.
It is held by a bracket 85 fixed to a frame 91 of 90. The bracket 85 is configured to be expandable and contractible.

The pressing member 86 is arranged between the feed roller group 82 and the guide 84 so that the decorative cloth 3 between the feed roller group 82 and the guide 84 can be pressed downward to prevent loosening.

Reference numeral 87 denotes a rotatable guide roller that guides the decorative cloth 3 pressed by the pressing member 86 to the guide 84.
Is configured to press the decorative cloth 3 upward, it is not necessary.

The pressing device 90 is provided around the trim main body 2 to be transported,
A lateral roller 92 and a plurality of auxiliary lateral rollers 93 arranged so that their respective rotation axes are orthogonal to the carrying direction of the trim body 2.
A vertical roller 94, a terminal roller 95, and a plurality of auxiliary terminal rollers 96.

The lateral roller 92 and the auxiliary lateral roller 93 are rotatably held by the bracket 97, respectively, and as shown in FIG. 12, in the trim body 2, from the sponge portion 2c to the lateral wall portion.
It has an outer shape corresponding to the cross-sectional shape from 2A to the middle of the side wall portion 2B.

As shown in FIG. 11, the bracket 97 is formed with a guide portion 98 through which a vertical guide rod 99 fixed to the frame 91 is inserted, and an air cylinder 100 fixed vertically to the frame 91. Cylinder rod 101
Are connected. Then, the cylinder rod 101 of the air cylinder 100 extends downward, so that the bracket 97
The horizontal rollers 92 and the auxiliary horizontal rollers 93 held by are pressed against the surface of the trim body 2 from the sponge portion 2c to the middle portion of the side wall portion 2B via the side wall portion 2A.

The trim main body 2 pressed by the horizontal roller 92 and the auxiliary horizontal roller 93 is arranged on the lower surface side of the trim main body 2 and is a conveyance roller 117 that is rotationally driven to convey the trim main body 2 and a terminal. The downward movement is restricted by being supported by the roller 95 and the auxiliary terminal roller 96.

The vertical roller 94 is rotatably held by the horizontal rod 103 and, as shown in FIG. 13, the sponge portion of the trim body 2.
It has an outer shape corresponding to the sectional shape of 2c.

As shown in FIG. 11, the horizontal rod 103 is supported by a support rod 102 fixed to a frame 91 so as to be swingable in the horizontal direction, and at the end thereof, an air cylinder separately fixed to the frame 91. The cylinder rods 105 of 104 are connected.
When the cylinder rod 105 of the air cylinder 104 extends to the left in FIG. 11, the vertical roller 94 held by the horizontal rod 103 is pressed against the surface of the sponge portion 2c of the trim body 2.

It should be noted that the trim main body 2 at the portion where the vertical roller 94 is disposed
On the side wall portion 2B side of the, a rotatable position regulating roller 106 is fixedly mounted on the frame 91 so that the trim body 2 pressed by the vertical roller 94 does not move to the right in FIGS. 11 and 13. There is.

The terminal roller 95 is rotatably held by the vertical rod 107, and as shown in FIG. 14, an outer shape corresponding to the cross-sectional shape of the trim body 2 from the sponge portion 2c to the inner peripheral surface of the side wall portion 2C. have.

As shown in FIG. 11, the vertical rod 107 is supported so as to be vertically swingable with respect to a support rod 108 fixed to a frame 91, and an air cylinder separately fixed to the frame 91 at an end thereof. 109 cylinder rods 110 are connected.
Then, the cylinder rod 110 of the air cylinder 109 extends rearward in the carrying direction of the trim main body 2 so that the vertical rod 10
The terminal roller 95 held by 7 is pressed from the sponge portion 2c of the trim body 2 to the inner peripheral surface side of the side wall portion 2C.

Each auxiliary terminal roller 96 is rotatably held by the bracket 111 and has the same outer shape as the terminal roller 95.

The bracket 111 is a guide portion 113 fixed to the frame 91.
An air cylinder 114 fixed to the frame 91 while having a vertically extending guide rod 112 inserted into the frame 91.
A cylinder rod 115 extending in the vertical direction is connected. When the cylinder rod 115 of the air cylinder 114 extends upward, each auxiliary terminal roller 96 held by the bracket 111 is pressed from the sponge portion 2c of the trim body 2 toward the inner peripheral surface of the side wall portion 2C. Become.

The trim body 2 pressed by the terminal roller 95 and the auxiliary terminal roller 96 is restricted from moving upward by the lateral roller 92 and the auxiliary lateral roller 93. Also, 116
Is a hot plate disposed and fixed between the auxiliary terminal rollers 96 in order to bend the decorative cloth 3 that is bent toward the inner peripheral surface side of the side wall portion 2C of the trim body 2.

The device used for finishing process VI is a caulking machine that performs fine adjustment bending work on the cross section of the final product shape as shown in Fig. 2.
14 and a cutting machine 15 for manufacturing the cloth-covered trim 1 by cutting into a predetermined length. The caulking machine 14 and the cutting machine 15 are known devices.

Next, a process of manufacturing the upholstered trim 1 on this manufacturing line will be described.

First, in the trim body molding step I, the trim body 2 having a substantially flat cross section as shown in FIG. 3 is extrusion-molded by the extruder 4 in which the insert 2a is drawn.

Then, in the vulcanization step II, the substantially flat plate-shaped trim body 2 is vulcanized in the vulcanization tank 5, and the trim body 2 is cooled in the cooling tank 6.

After that, in a bending step III, the bending machine 7 is used to form the trim body 2 having a substantially inverted U-shaped cross section as shown in FIG.

Then, in the adhesive application step III, the primer P is applied to a predetermined portion by the primer applicator 8, and the air cooling tank 9 is used.
After cooling with, the adhesive applying device 10 applies the adhesive B to the trim body 2 at four positions as shown in FIG.
Dry at 11.

At this time, when the primer P is applied, the primer P is applied to the trim body 2 by the primer applying device 8 in the following manner (see FIGS. 6 and 7). When the trim main body 2 is guided and held by the guide blocks 42 and 43 and conveyed, the predetermined start switch of the control device 40 is turned on and the hose 27 closed by the pressing roller 34 is opened. Then, the primer P is dropped from the nozzle 28 onto the trim body 2.

The primer P dropped from the nozzle 28 of the hose 27 is initially stored in the tank 21, and the lower cylindrical portion
It flows from 22 to the saucer 25. At this time, since the tank 21 is sealed and the tubular portion 22 of the tank 21 is inserted into the tray 25 having an upper opening, the primer P in the tray 25 changes the height of the liquid surface thereof to the lower end of the tubular portion 22. The position is adjusted to be substantially the same as the position. Therefore, the hose 27, one end of which is disposed below the liquid surface of the tray 25, has a certain amount of the primer P corresponding to the height difference h between the liquid surface of the primer P of the tray 25 and the nozzle 28 on the other end side of the hose 27. Is to be dropped from the nozzle 28. By the way, this height difference h is adjusted by adjusting the height position of the tank 21 and the tray 25 with respect to the holding frames 23 and 26, and the tank of the tubular portion 22.
The insertion depth into 21 should be adjusted.

Hold the hose 27 in the middle of the hose 27 and press the roller.
A flow rate controller 29 for adjusting the flow rate of the primer P by pressing with the 34 is provided, and the primer P dropped from the nozzle 28 of the hose 27 is adjusted by the adjustment of the flow rate controller 29.
Will be finely adjusted.

Therefore, at the time of applying the primer P, the primer P is dropped and applied, and the dropped amount is adjusted by adjusting the height of the liquid surface of the primer P in the tray 25 and adjusting the flow rate adjuster 29 at the intermediate portion of the hose 27. Since the trim P can be adjusted in two steps and finely adjusted, the primer P can be accurately dropped and applied to the trim main body 2 without waste.
It is possible to improve the yield of the primer P applied on the substrate. By the way, in the case of the example, the amount of the primer P used could be reduced to about 1/8 as compared with the method by dipping.

Then, in the primer applying device 8 of the embodiment, when the viscosity of the primer P changes and, for example, the viscosity increases, the control device 40 drops the trim main body 2 based on the electric signal input from the sensor 38. The number of drops of the primer P per unit time is counted so that the number of drops of the primer P dropped from the nozzle 28 per unit time can be maintained at a predetermined number, that is, the motor shaft 36 is rotated in a predetermined direction by a predetermined angle. Then, a predetermined electric signal is output to the servo motor 35 so that the opening shape of the hose 27 at the portion pressed by the pressing roller 34 of the flow rate adjuster 29 can be widened. Therefore, in the primer applying device 8, even if the viscosity of the primer P changes, a certain amount of the primer P can be automatically applied to the trim body 2 in accordance with the viscosity.

When the adhesive B is applied, the adhesive B is applied to the trim body 2 by the adhesive applying device 10 in the following manner (see FIGS. 8 to 9).

First, the trim main body 2, which has been bent to some extent by the bending machine 7, is sequentially conveyed by the take-off machine 16 and the take-off roller 56, and passes through the guide block 55 in the bending machine 50 and the upper, lower, left, and right rollers 51 ,. It will pass between 52, 53 and 54. At that time, the trim main body 2 is
The opening widths of the side wall portions 2B and 2C are restricted to a predetermined dimension by the processing surfaces 53a and 54a of 54.

Then, in the adhesive dropping device 60, the trim main body 2 is
Positioning guide 73 /
According to 74, a predetermined orbit is passed.

At that time, between the positioning guides 73 and 74, the adhesives B1, B2, B3, and B4 of a predetermined property that drop from the nozzles 63A, 63B, 63C, and 63D are automatically placed at predetermined positions on the outer peripheral surface of the trim body 2. Thus, the application work can be performed efficiently.

Also, the adhesives B1, B2, B3, and B4 dropped from the nozzles 63A, 63B, 63C, and 63D are surely attached to the trim body 2 because the nozzles 63 are arranged around the trim body 2. It is applied and not wasted. Furthermore, since the adhesive B is applied immediately after the trim main body 2 is bent by the bending machine 50, the cross-sectional shape of the trim main body 2 maintains a predetermined shape, and the periphery of the trim main body 2 is surrounded. Adhesive B dropped from each nozzle 63 arranged at a predetermined position is applied to a predetermined position on the outer surface of the trim main body 2 accurately and uniformly without waste and with a uniform coating film. Becomes

By the way, in the case of the example, the film thickness of the adhesive B could be applied substantially uniformly within the range of 15 to 85 microns. Also,
When spraying each adhesive B1, B2, B3, B4,
The consumption amount was 18 g per 1 m of the trim main body 2, but in the case of the embodiment, the consumption amount was 6.5 g per 1 m of the trim main body 2, and the yield could be remarkably improved.

Then, in the cloth tension process V, as shown in FIG.
The decoration cloth 3 is attached to the surface of the trim body 2 by the cloth tensioning device 12, and the hardening furnace 13 is passed through to complete the attachment state of the decoration cloth 3.

Then, when the decorative cloth 3 is attached, the decorative cloth 3 is attached to the trim body 2 by the cloth applicator 12 in the following manner (see FIGS. 11 to 14).

When the trim main body 2 is sent to the cloth tensioning device 12 via a predetermined manufacturing line, each air cylinder 10 is previously in advance.
The cylinder rods 101, 105, 110, 115 are contracted or extended by activating the 0, 104, 109, 114 to keep the rollers 92-96 away from the trim body 2. Then, the conveyance of the trim main body 2 is once stopped, the decorative cloth 3 from the decorative cloth roll 81 of the cloth feeding device 80 is fed out through the feed roller group 82, the pressing material 86, the guide roller 87, and the guide 84, and further, The lateral roller 92 of the pressing device 90 to the auxiliary terminal roller 96
It is manually attached to a predetermined position on the outer peripheral surface of the trim main body 2 up to the above portion. After that, the air cylinders 100/104/109/114 are sequentially operated to extend / contract the cylinder rods 101/105/110/115, and the rollers 92 to 96 are inserted into the trim body with the decorative cloth 3 interposed therebetween. 2 is pressed to a predetermined position on the outer peripheral surface. And the trim body 2
Of the cloth feed device 80 and the motor 83
Is started, and the decorative cloth 3 is sequentially attached to predetermined positions on the outer peripheral surface of the trim body 2.

At that time, in the cloth feeding device 80, the decorative cloth 3 is sent out from the decorative cloth roll 81 by the driving roller 82a of the feed roller group 82 in accordance with the conveying speed of the trim body 2, and is guided.
The trim body 2 is arranged along the transport direction of the trim body 2.
At this time, the decorative cloth 3 is pressed by the pressing member 86 arranged between the feed roller group 82 and the guide 84, and is prevented from being loosened.

Then, in the pressing device 90, the decorative cloth 3 sent from the cloth feeding device 80 is first conveyed to the lateral wall portion 2A and the side wall portion 2B of the trim main body 2 by the lateral roller 92 as shown in FIG. Pressed against the surface of. At that time, the adhesive B is applied in advance to the surfaces of the side wall portion 2A and the side wall portion 2B, and the side roller 92 is rotatably movable from the sponge portion 2c of the trim body 2 through the side wall portion 2A. Since the outer shape corresponds to the cross-sectional shape of the side wall portion 2B up to the middle, the decorative cloth 3 can be neatly attached to the surfaces of the side wall portion 2A and the side wall portion 2B without a gap.

Then, as shown in FIG. 13, the vertical cloth 94 presses the decorative cloth 3 against the surface of the sponge portion 2c of the trim body 2. At this time, since the vertical roller 94 is rotatable and has an outer shape corresponding to the cross-sectional shape of the sponge portion 2c of the trim body 2, even if the sponge portion 2c is soft, the decorative cloth 3 is not covered by the sponge portion 2c. It can be pressed neatly on the surface of the.

After that, as shown in FIG. 14, the decorative cloth 3 is attached to the sponge portion 2c of the trim body 2 by the terminal roller 95.
Is attached to the inner peripheral surface side of the side wall portion 2C. At this time, the adhesive B is applied in advance from the sponge portion 2c to the inner peripheral surface side of the side wall portion 2C, and the terminal roller 95 is rotatable so that the sponge portion 2c to the side wall portion 2C of the trim body 2 can rotate. Since it has an outer shape corresponding to the cross-sectional shape applied to the inner peripheral surface of the above, the decorative cloth 3 can be neatly attached without a gap from the sponge portion 2c to the inner peripheral surface of the side wall portion 2C.

Further, in the case of the embodiment, the lateral roller 92 and the terminal roller 95
And the trim main body 2 in the transport direction forward, in the lateral rollers, respectively.
A plurality of auxiliary lateral rollers 93 and auxiliary terminal rollers 96, which have the same outer shape as 92 and the terminal roller 95 and have the same operation, are arranged, and are securely provided on the outer peripheral surface of the trim main body 2 to which the adhesive B is applied. The decorative cloth 3 can be adhered to the outer peripheral surface of the trim body 2, and the decorative cloth 3 can be more neatly attached to the outer peripheral surface of the trim body 2.

In addition, in the cloth tensioning device 12 of the embodiment, in the pressing device 90, the horizontal roller 92,
The vertical roller 94 and the terminal roller 95 are arranged in this order, but if the trim body 2 is rotated in the circumferential direction of the cross section and the rollers 92, 94, and 95 are arranged corresponding to the respective parts, the rollers can be arranged. Arrangement order of 92/94/95 can be changed arbitrarily.

After that, in the finishing step VI, the caulking machine 14 bends the cross-section into the final product shape as shown in FIG. 2, and then it is cut by the cutting machine 15 to manufacture the upholstered trim 1 of a predetermined length.

And, the upholstered trim 1 thus manufactured is
Since the decorative cloth 3 is attached to the trim body 2 which has already been bent into a substantially inverted U-shaped cross section through the bending step III, compared to the conventional manufacturing method in which the decorative cloth is attached and then bent, Even if the bending process is performed again for fine adjustment later, the decorative cloth 3 of the upholstered trim 1 is not stretched, the brushed density of the decorative cloth 3 is not easily changed, and the appearance of the upholstered trim 1 is deteriorated. Can be prevented. Further, even if the manufactured cloth tension trim 1 is bent and attached to a predetermined portion, the decorative cloth 3 is prevented from being preliminarily stretched, so that the decorative cloth 3 can be prevented from breaking.

In addition, in the finishing step VI after passing through the cloth tensioning step V,
The upholstered trim 1 is bent by the caulking machine 14 for fine adjustment. However, since the bending amount is small, the effect of stretching the decorative cloth 3 is smaller than that of the conventional manufacturing method, and the effect of the present invention is obtained. On the contrary, the shape of the final product can be made constant.

Further, in the embodiment, the method of manufacturing the rubber-made cloth trim 1 has been described, but of course, the present invention can be applied to the case of manufacturing a synthetic resin cloth-made trim. Step II is unnecessary.

Furthermore, in the embodiment, the method of manufacturing the cloth tension 1 having the sponge portion 2c has been described. Of course, in the case of manufacturing the cloth tension trim 121 having no sponge portion as shown in FIG. The present invention can be applied.

[Brief description of drawings]

FIG. 1 is a schematic view showing a manufacturing line showing an embodiment of the present invention, FIG. 2 is a sectional view of a cloth trim trim manufactured in the same embodiment, and FIG. 3 is a trim main body molding in the same embodiment. 4 is a cross-sectional view of the trim main body after the steps, FIG. 4 is a cross-sectional view of the trim main body after the bending step in the same embodiment, and FIG. FIG. 6 is a perspective view of a primer coating device used in the same embodiment, FIG. 7 is a partial sectional view of the primer coating device used in the same embodiment, and FIG. 8 is an adhesive used in the same embodiment. FIG. 9 is a perspective view of the coating device, FIG. 9 is a partial cross-sectional view showing the IX-IX portion of FIG. 8, FIG. 10 is a partial cross-sectional view showing the XX portion of FIG. 8, and FIG. FIG. 12 is a perspective view of the cloth tensioning device used in the embodiment, FIG. 12 is a partial cross-sectional view showing the XII-XII portion of FIG. 11, and FIG. Is a partial cross-sectional view showing the XIII-XIII portion of FIG. 11, FIG. 14 is a partial cross-sectional view showing the XIV-XIV portion of FIG. 11, and FIG. 15 shows another shape of the upholstered trim to be manufactured. It is sectional drawing shown. 1 ... Cloth trim, 2 ... Trim body, 2a ... Insert, 2b ... Solid part, 2c ... Sponge part, 3 ... Decorative cloth, 4 ... Extruder, 5 ... Vulcanization tank, 7 …… Bending machine, 10 …… Adhesive applicator, 12 …… Cloth tensioner, B ……
Adhesive, I ... Trim body molding method, II ... Vulcanization process,
III ... Bending process, IV ... Adhesive application process, V ...
Upholstery process, VI …… Finishing process.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Ken Kuroki Inventor, Nagahata, Ochiai, Kasuga-mura, Nishi-Kasugai-gun, Aichi Prefecture, Toyoda Gosei Co., Ltd. (56) Reference JP-A-63-78737 (JP, A) JP-A-SHO 58-168534 (JP, A)

Claims (1)

[Claims] 1. A method for manufacturing a cloth trim having a substantially inverted U-shaped cross section in which a decorative cloth is adhered to the outer surface, the method comprising the following steps. (A) A trim main body forming step of forming a substantially flat plate-shaped trim main body by coating a polymeric elastic body around the insert by extrusion molding, and (b) bending the trim main body to have a substantially inverted U-shaped cross section. A processing step, (c) an adhesive application step of applying an adhesive to a predetermined position of the bent trim main body, (d) a cloth tensioning step of attaching a decorative cloth to the adhesive-applied trim main body, (e) A finishing step in which the trim main body to which the decorative cloth is attached is bent into a cross section of the final product shape, finely adjusted, and cut into a predetermined length.