JPS60241487A - Production of trim cover - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Industrial Application Field of the Invention The present invention is directed to the manufacture of trim covers used to cover the surface of cushion bodies when manufacturing seats for furniture or vehicles. It is about the method.

Conventional technology Usually, skin material 1, wadding material 2. When manufacturing a trim cover by integrally joining the backing material 3, an uneven pattern P is formed on the surface. When the three parts are simply superimposed and N-bonded or welded by welding (see Fig. 1) during molding, the wadding material 2 is placed on the back side so that the backing material 3 bulges due to the elongation rate or tensile strength of the skin material 1. As a result, it is impossible to maintain the large undulations of the uneven pattern that appears early on the surface side, and it is inevitable that the uneven pattern becomes unclear.

Therefore, conventionally, when concave grooves 4 are formed in the wadding material 2 and the skin material 1 is aligned and arranged along the surface of the wadding material 2 provided with the grooves, the backing material is placed on the back side of the wadding material 2. 3, and then the four parts are tied together or joined with a welter, etc. (Figure 2a,
b, $sho).

Problems to be Solved by the Invention In this manufacturing method V, when assembling the skin material 1 on the surface of the grooved wadding material 2, the skin material 1 is aligned individually while taking a tank corresponding to the groove 4. Therefore, wrinkles and undulations are likely to occur in the skin material, and the work is extremely time-consuming.
In addition, there are also drawbacks in terms of durability during sheet use, such as poor retention of wrinkles and uneven shapes in the skin material.

(2) Structure of the Invention The present invention forms a clear uneven pattern by increasing the density of the wadding material around the convex portions without causing wrinkles or undulations in the skin material. This provides a method for manufacturing a trim cover, in which a skin material portion having a relatively thinner wadding material than the wadding material forming the intermediate layer is recessed into a substantially gate-shaped groove formed in the wadding material of the intermediate layer. In addition, compared to the wadding material laminated to the surface material, the thickness of the wadding material is left at the bottom of the groove, and at the corners between the grooves. A relatively thick groove is left to form a substantially concave groove, and the groove is indented along the groove surface of the wadding material along with the skin material to integrally join the parts including the backing material. has been done.

Function: In this method of manufacturing a trim cover, the wadding material is laminated on the skin material in advance, and the skin material portion is invaginated into the approximately gate-shaped groove of the wadding material, thereby eliminating wrinkles, undulations, etc. in the skin material. It is possible to easily assemble the parts without causing any problems, and since the wadding material of the skin material is pressure-welded along the groove surface, the density around the convex parts can be increased, making it possible to form a clear uneven pattern. Furthermore, by forming grooves with a relatively thick wall thickness left at the corners between the grooves, when the two parts are joined together, the density of the convex contour becomes extremely high, resulting in a significant increase in the thickness. This is done so that a rough uneven pattern can be formed.

Embodiment Hereinafter, description will be given with reference to FIGS. 3 to 10. In the illustrated embodiment, the skin material 10 is laminated to the wadding material 11 in advance, and before joining to the backing material 12, approximately gate-shaped grooves 13 are formed on the surface. In some cases, a substantially gate-shaped groove 13 is provided on the surface side of the wadding material II, and the skin material 10 and the backing material 12 are integrally joined.

In the former case, first, the skin material 10 and the wadding material 11, such as a flat urethane slab having a predetermined thickness, are laminated with an adhesive applied by a roll coater C, or the surface of the urethane slab is melted with flame, and then Perform so-called frame lamination in which the skin material IO is welded (
(See Figure 3). Next, a substantially gate-shaped groove 13 is formed on the surface side of the wadding material 11 by cutting away the wall thickness.

This groove cutting is done by cutting the wadding material 11 with i! i! During continuous conveyance, the chips can be formed by rotating and contacting the chimpun-S, such as a grooved cutter, and the chips can be removed by suctioning with a vacuum V, etc. (see Fig. 4). When shaping, a slightly thicker wadding material 11a remains at the bottom of the groove, and is formed to have a width relatively larger than the four-part radius of the concavo-convex pattern P that will eventually form. Its width is determined by adding the depth W of the groove 13 to the width of the four places to be formed in the end, which corresponds to the width of the Homon (see Figure 5).Other than that, the groove 13 is Wadding material 11
It can be formed at any depth and in any desired pattern depending on the thickness. After this groove formation, the skin material portion 10a at the grooved portion is recessed toward the groove side, and the remaining wadding material 11a with a thickness of approximately 100 mm is placed in an aligned position along the groove surface. The invagination is caused by multiple tack feed rolls R
I.

&11 R,′,R,″,R,,R,′,R3,R3′
This can be done using a broiling tank machine T. This evening 7
In aT, for example, when shaping an uneven pattern having a 1-" 1 part of the E strip, the rolls R1-C', which are fed from the center part first, are brought together while being guided by the kite brake (G) and conveyed. Next, create the left and right feed rolls R2, Rj, and feed rolls R1' in which the younger ones are positioned lower ffl L
, the final i,m M -roll placed at the level R,”
, R2, R3' (see No. 61, a and b). After the skin material part is invaginated, the flat backing material 12 is applied to the back side of the wadding material 11, and the skin material part 10a is indented. By sewing or welding the inserted recess M, the skin material 10. Wadding material 11. The backing materials 12 are joined together to produce a trim cover. When joining, when using the quilting machine K, it is preferable to press each recess with a tack feeding board B to prevent the tuck from shifting (see FIGS. 7a and 7b). Furthermore, the steps of cutting, tacking, and joining can be performed continuously and automatically.

When shaping the uneven pattern in this way, the skin material 10
is laminated to the wadding material 11 in advance, and the wadding material +1a is left in the rows of the substantially concave grooves 13 with a thickness of 1-1, so that the surface material 10 can easily fall into the grooves 13 without wrinkles or undulations. can be entered. Furthermore, the wadding material 11a left at the bottom of the groove is pressed against the inner surface of the groove 13 to increase the density of the area, so even if wrinkles occur, they can be removed by the stretching force of the wadding material 11a, and the uneven pattern can be removed. The shape of the convex portion of P can be made clearer, and the shape retention can also be improved (see FIG. 8).

In the above embodiment, the skin material 10 and the wadding material 11 were laminated in advance, but at the time of lamination, the backing material 12 was also laminated together, and then the wadding material was cut between layers to an appropriate thickness, and the wadding material was bonded to the skin material side. The material 11 may be grooved.

Also, when cutting grooves, wadding material 11a is left at the bottom of the groove.
The wadding material 11b, ll is relatively thicker than the thickness of the wadding material 11b, ll
If c is left on the grooved corner part, the wall thickness will be concave 1111 School P
In order to further increase the density near the contour part, not only the contour shape becomes clearer, but also the shape retention property can be improved (see FIGS. 9a to 9d).

Apart from cutting grooves on the back side of the wadding material 11 on which the skin material 10 is laminated in advance, it is also possible to cut grooves on the front side of the wadding material 11 to integrally join the skin material 10 and the backing material 12. . In this case, a wadding material 11a that is relatively thinner than the wadding material 11 forming the intermediate layer is laminated onto the skin material 10, and this is inserted into the grooves 13 of the wadding material 11. In this embodiment, the skin material 10, the wadding material 11, and the backing material 12 are laminated together in advance, and then the backing material is formed by making the skin material side relatively thin and cutting the wadding material 11 between layers. It is also possible to cut grooves into the thick wadding material on the material side (see Figures 10a-d).

(3) Effects of the invention 1. According to the method for manufacturing a trim cover according to the present invention, the skin material is made into a composite material with the wadding material in advance, and the F.
The surface material can be easily aligned with the wadding material without wrinkles or undulations because it invaginates the JJ groove and increases the density of the inner surface of the groove with the relatively thin wadding material of the surface material. At the same time, by making the uneven pattern clear and improving shape retention, it is possible to manufacture a trim cover with excellent durability in use and free from wrinkles, sagging, etc.

[Brief explanation of the drawing]

1 and 2 are explanatory diagrams showing a conventional trim cover manufacturing method and its problems; FIGS. 3 to 5; FIG. 6a;
b and FIGS. 7a and 7b are explanatory diagrams showing step 1 of manufacturing a trim cover according to the present invention, FIG. 8 is a partial sectional view of a trim cover manufactured by the same method, FIGS. 9a-d and FIGS. 1O Figures a to d are explanatory diagrams showing different embodiments. lO2 skin material, ll: wadding material, Ila, Ilb. 11c: Relatively thin wadding material, 12: I batting material, 13: lfl concave groove. 'r;] lit + :r'', ,'' l 1b し し た:) 11 To Figure 6 Q', 'i Wa? i>',' 17 b Fig. 8 13 1 n 0 112 ``- System completion n-j-E book 1982 Patent Application No. 96265 2, issued IJI name Trim cover manufacturing method 3, make corrections Relationship with 111 cases Patent applicant name Tokyo Seat Co., Ltd. 6, [Claims J, r Detailed description of the invention] of the specification subject to amendment,
Each column of "Brief Description of Drawings", Drawing 7, Contents of Amendment (+) The scope of the claims are revised as shown in the attached sheet 1]-. (2) "Substantially concave" written on page 4, line 6 of the specification was deleted, and "grooved corner portion" written on line 10 of the same specification was corrected to "partially at the bottom of the groove.""Exhibits a substantially concave shape" written in line 11 is deleted, and "presents a substantially concave shape" written in line 17 is deleted. :3) Said page 5, line 8cy) r3~l0J(7)r
1 and OJ are corrected to "12", and "substantially concave" written in lines 11 and 12 of the same are deleted. :4) After "part" written on page 7, line 10, "Then,
By applying adhesive or welding agent to the side surface of the groove 13, the wadding material +1a left with a slight thickness can be adhered to the groove surface, and this adhesion allows the shape of the invaginated part to be formed without causing any displacement or the like. Can be retained. After the word "welder" written in line 112, insert "Join by welding or the like, and also join the wadding material 11 and the inner surface material 12 by adhesive such as hot melt or by partial welding." [5] "Grooved corner part" written on page 8, line 19 is corrected to "partially at the bottom of the groove." (6) "(See Figures 9 a-d) in the second line of page 9. Insert C after J. [The relatively thick wadding material 11b. 11c is an uneven pattern. It can be formed into any shape as long as it can increase the density near the contour of P (f
iS10 Figures a-g). For example, a plurality of protrusions are formed in the groove bottom in the form of small vertical sawtooths (see figure a) or semi-circular arcs (see figure 1) to leave a thick wall, and these are added to the wadding material 11. It may be formed with a rise approximately equal to the thickness (see c and d in the same figure). Instead of this, a sawtooth-like ridge is formed on the bottom of the groove, opening left and right (see figure e).
It is also possible to form the groove 1 into a substantially gate-like shape and chamfer the groove edge (see f in the same figure). It can be cut into a shape (see g in the same figure),
” (7) Page 9, line R1S (7) rlOJ to rl
IJ and revised I "L," see Figures a-d in line 16 of the same.
,", insert the note f. "Furthermore, when slicing the wadding material 11, the front inner material 12 is reversed and joined to the grooved skin material 10 side,
It is preferable that the thick wadding material 11e on the side of the front inner material 12 be exposed to the back side of the cover (see FIGS. 12a-d). When the trim cover is applied to the bundt, the back side made of a slab material such as urethane comes into contact with the surface of the pad, so compared to the front and inner material made of kanakin or non-woven fabric, a release agent such as paraffin wax is used. It is possible to significantly reduce the occurrence of abnormal noise between the impregnated and molded Kunjeong band and the surface skin layer. 8) After "Figure 10" in the 13th line of the same No. 101 Jffi, rag shows an example of the shape of the groove formed in the wadding material as I.
＼Explanatory diagram, Figure 11'' and RA-D included in the accompanying description.
12 a to d of the method for manufacturing a Torino cover according to the present invention. 8) Correct "roughly portal-shaped ” to be deleted. (lO) “Figure 1O” in the drawings attached to the application has been changed to “Figure 11”
I am corrected. (11) “Figure 10 a~
Claims (1) characterized by "g" and "Figs. 12 a to d": forming grooves by cutting the wall thickness of the wadding material;
The surface material having a relatively thin wadding material is invaginated along the groove surface, and then the surface material, wadding material, and inner material are integrally joined to form an uneven pattern. A method for manufacturing a trim cover characterized by: (2) A groove is formed on the back side of the wadding material laminated with the P-metal skin material, leaving a slight wall thickness, and the part of the skin material with the relatively thin wadding material at the grooved part is cut along the groove surface. 2. The method for manufacturing a trim cover according to claim 1, wherein the trim cover is integrally joined by inserting the trim cover into the trim cover and applying a biased inner lining material to the back surface of the trim cover. (3) Form a groove on the back side of the wadding material, which has been laminated with a skin material in advance, by leaving some wall thickness at the bottom of the groove, and leaving a relatively thick part at the bottom of the groove. A trim car characterized by forming an uneven pattern by invading a skin material part having a thin wadding material along the inside of the groove, applying a flat lining material to the back side and integrally joining the beads. -One manufacturing method. 112 Figure 10 a, b 10 Figure 12 5. Crane 0 2 ” 10 1']e 0 d 7ノ

Claims (3)

[Claims] (1) Cut the wall thickness of the wadding material into a substantially concave shape to form a groove, and invaginate the surface material portion having a relatively thin wadding material along the entire surface of the groove, and then remove the human skin material, the wadding material, and A method for manufacturing a trim cover, characterized in that a concave-convex pattern is formed by integrally joining the king of backing materials. (2) - A skin material that has a wadding material laminated with a "Y" skin material, with a groove that is approximately gate-shaped with some wall thickness remaining on the back side, and a relatively thin wadding material at the groove cut part. 2. The method of manufacturing a trim cover according to claim 1, wherein the trim cover is integrally joined by recessing the portion along the groove surface and applying a flat backing material to the back surface of the portion. (3) On the back side of the wadding material on which the skin material has been laminated in advance, a substantially concave groove is formed by leaving the wall thickness at the groove bottom part relatively thick at the groove bottom part and relatively thick at the corner part between the grooves, and cutting the groove. The feature is that the skin material part with relatively thin wadding material is recessed along the groove, and a flat backing material is applied to the back side of the skin material, and the king is integrally joined to form an uneven pattern. A method for manufacturing a trim cover.