JPH0477236A - Device for pasting base material and skin material together - Google Patents

Abstract

PURPOSE:To make the pasting by means of small capacity of vacuum or pressurizing air possible without trouble such as elastic deformation, breakage and the like of a covering by a method wherein clamps, with which the lower end peripheral edge of the covering is brought into close contact with a plate, are made slidable on the plate in keeping with the deformation of the covering during the deformation of skin material. CONSTITUTION:The numeral 3 represents a flexible converting, which covers skin material 2, base material 1 and a backup jig 5 and the lower end peripheral edge of which is brought into close contact with a steel plate 8 by means of a large number of magnets attracted to the plate 8. Further, teflon tape is pasted to the side of the backup jig 5 in order to improve the slippage of the covering 3. By evacuating air to the direction indicated with the arrows, the covering 3 moves to the backup jig 5 side under the condition being tensed with magnets 4 sliding on the plate 8, resulting in shifting a point A to a point A' so as to bend the side piece 2a of the skin material 2 inside. Next, by evacuating further, the covering 3 is attracted together with the magnets 4 to the backup jig 5 side as shown in the right figure so as to bend upwards in the shape indicated with the dotted line (a) in the right figure, resulting in bonding the side piece 2a of the skin material 2 with the rear face of the side piece 1a of the base material 1.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for bonding a skin material to the surface of a base material while wrapping the peripheral edge of the skin material around the back side of the base material.

[Conventional technology]

Conventionally, for example, as a cover cloth for automobile trim, etc.
When a skin material is applied to the upper surface of a base material having a U-shaped cross section and a side piece bent at the end, the end portion of the skin material is placed on the back side of the side piece of the base material. Some have a folded and pasted structure.

Since the above-mentioned bonding of the base material and the skin material is laborious and inefficient when done manually, a bonding device as shown in FIG. 6, for example, is used. That is, in the figure, 5 is a receiving jig that is installed upright on the plate body 6 and has a passage 7 that opens to the side surface 5b and the bottom surface 5c, and . The base material 2 placed on the outside is a skin material that is attached to the upper surface of the base material l with the side piece 2a, which is longer than the side piece 1a, facing downward.

Note that adhesive (
(not shown) is applied. Further, numeral 3 is a stretchable cover body that covers the skin material 2, the base material 1, and the receiving jig 5, and whose lower end periphery is closely fixed onto the plate body 6 by a frame body or a plurality of fixing devices 4a.

Then, the inside of the cover body 3 is evacuated using the passage 7, or the cover body 3 is stretched toward the receiving jig 5 side by compressed air as in the seventh case, from A to A', and from B to B'. Then, as shown in Fig. 8, the shape changes from B' to B'', and then the shape becomes as shown in Fig. 9. However, in this case, the elongation of the cover body 3 is almost at its limit between E and F, and the skin material 2 Although it becomes difficult to wrap the side piece 2a of the base material L into the side piece 1a of the base material L, the vacuum force or pneumatic force is further increased and as shown by the dotted line B''
→ B″′ was bent and the outer skin material 2 was pasted by force.

[Problem to be solved by the invention]

As described above, the cover body 3 is stretched and the skin material 2 is attached to the base material 1.
In order to completely bond the cover body 3, it is necessary to stretch the cover body 3 locally extremely strongly in the final stage.
For this reason, a huge amount of vacuum force or pneumatic force is required, which is not only uneconomical, but also causes drawbacks such as the cover body 3 itself being deformed due to W-type deformation or even being damaged in some cases, which is extremely inconvenient. .

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an apparatus for bonding a base material and a skin material that can easily and completely bond a skin material to a base material.

[Means to solve the problem]

The present invention aims to solve the above-mentioned problems, and the present invention has the following features:
Place the base material with a substantially U-shaped cross section so that its side piece faces downward and is on the side of the above-mentioned upper surface! ! An adhesive is applied to the base material from the top surface to the back side of the side piece, and a skin material having a side piece longer than the side piece is attached to the top surface of the base material with the side piece facing downward. At the same time, the skin material, the base material, and the receiving jig are covered with a stretchable cover whose lower edge is tightly fixed on the plate by a fixing device, and the cover itself is moved to the receiving jig side by vacuum or compressed air. In an apparatus for bonding a base material and a skin material, the side pieces of the skin material are stretched and pressed and bent to wrap the skin material around the base material and bond the skin material together. However, it is configured so that it can be slid toward the receiving jig side.

The fixture is preferably a magnet that attracts onto the plate, or a sliding piece connected to one end of a spring that is connected to a fixture that is fixed to the plate.

[Example] [Operation] Hereinafter, an example will be described based on the drawings. FIG. 1 is a sectional view showing an example of an apparatus for bonding a base material and a skin material according to the present invention. In the figure, reference numeral 5 denotes a receiving jig that is erected on an iron plate 8 and has a passage 7 that opens to a side surface 5b and a bottom surface 5c. Reference numeral 1 denotes a base material having a substantially U-shaped cross section and a side piece 1a, and is placed on the upper surface 5a of the receiving jig 5 with the side piece 1a facing downward and on the outside of the upper surface 5a. Note that base material 1
Adhesive (not shown) is applied from the top surface to the back surface of side piece 1a.
is coated. Reference numeral 2 denotes a skin material provided with a side piece 2a longer than the side piece 1a, and is attached to the base material 1 with the side piece 2a facing downward.

Reference numeral 3 denotes an elastic cover body that covers the skin material 2, the base material l, and the receiving jig 5, and the lower edge of the cover body is tightly attached to the iron plate body 8 by a large number of magnets that are attracted to the plate body 8. . Note that a tape (not shown) made of Teflon (registered trademark of Du Pant Co., Ltd.) is pasted on the side surface of the receiving jig 5 in order to improve the sliding of the cover body 3.

Next, to explain the operation, when the vacuum is drawn in the direction of the arrow as shown in FIG.
The point moves to point A', and the side piece 2a of the skin material 2 is bent inward. Next, when the vacuum is further drawn, the cover body 3 is further attracted to the receiving jig 5 side together with the magnet 4 as shown in FIG. It is adhered to the back surface of the side piece 1a of the base material 1.

Next, the fourth example is a sectional view showing another embodiment of the apparatus for bonding a base material and a skin material according to the present invention.

In the case of this embodiment, the lower end periphery of the cover body 3 is tightly attached to the plate body 6 by a large number of sliding pieces 11. It is connected to the. The rest of the structure is the same as that of the embodiment shown in FIG.

In the case of this embodiment, as shown in FIG. 5, the cover body 3 is finally deformed in the same way as in the case of FIG.
The side piece 2a is adhered to the back surface of the side piece 1a of the base material l.

〔Effect of the invention〕

The present invention provides an apparatus for wrapping and pasting a skin material around a base material using a cover body that is deformed by vacuum or compressed air.
The fixing tool that tightly attaches the lower edge of the cover body to the plate body is made to be able to slide on the plate body as the cover body deforms during the above deformation, so that the local elongation of the cover body itself during pasting is reduced and the cover Accidents such as plastic deformation and damage to the body are eliminated,
In addition, since the pasting can be done using a small volume of vacuum or compressed air, not only can quality be stabilized, but the pasting time can be drastically shortened from 5 minutes/piece to 0.5 minutes/piece. There are effects such as being able to.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of the apparatus for bonding a base material and a skin material according to the present invention, FIGS. 2 and 3 are explanatory views of the bonding process using the apparatus shown in FIG. 1, and FIG. 5 is a sectional view showing another embodiment of the apparatus for bonding a base material and a skin material according to the present invention, and FIG. 5 is an explanatory view of the bonding process using the apparatus shown in FIG. 4. FIG. 6 is a sectional view of a conventional apparatus for bonding a base material and a skin material, and FIGS. 7, 8, and 9 are explanatory diagrams of the bonding process using the apparatus of FIG. 6. Description of symbols 1 - Base material 2 - Skin material 3 - Cover body 4a - Fixture 5a - Top surface 5c - Bottom surface 7 - Passage 9 - Fixture 11 - Sliding piece 1a - Side piece 2a - Side piece 4 - Magnet 5 - Receiving jig 5b - Side surface 6 - Plate body 8 - Plate body 10 - Spring Figure 1 Figure 2 Figure 3

Claims (1)

[Scope of Claims] 1. On the top surface of a receiving jig that is erected on a plate and has a passage opening on the side and bottom surface, a base material having a substantially U-shaped cross section is placed with its side piece facing downward and outside the top surface. Adhesive is applied to the base material from the top surface to the back side of the side piece, and a skin material having a side piece longer than the side piece is attached to the top surface of the base material. It is applied facing downward, and the skin material,
The base material and the receiving jig are covered with a stretchable cover body whose lower end periphery is closely fixed on the plate body using a fixing device, and the cover body itself is stretched toward the receiving jig side by vacuum or compressed air, and the cover body is stretched to the side of the skin material. In an apparatus for bonding a base material and a skin material, which presses and bends a piece to wrap the skin material around the base material and bond it together, the above-mentioned fixing tool is placed on the receiving jig side while applying tension to the cover body during bonding. A bonding device for bonding a base material and a skin material, characterized in that the device is configured to be slidable. 2. The device for bonding a base material and a skin material according to claim 1, wherein the fixture is a magnet that attracts onto the plate. 3. The device for laminating a base material and a skin material according to claim 1, wherein the fixture is a sliding piece connected to one end of a spring connected to a fixture that is fixed to the plate.