JPS6129385A - Terminal treatment of surface decorative material of headrest - 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 (Industrial Application Field) The present invention relates to a method for treating the ends of a headrest covering material.
More specifically, the present invention relates to a method for processing the ends of a headrest covering material, which is formed by attaching a padding material to the outer periphery of a headrest frame, and then covering the outer periphery of the padding material with a covering material.

(Prior Art) Headrests for seats in vehicles and the like are available in various shapes in order to securely and stably hold the head of a seated person. In addition, for headrests with complex configurations, such as those with complicated changes in thickness and width in the vertical and horizontal directions, or headrests with a hole in the center that penetrates in the front-rear direction, the mounting material There were sewing parts and zipper attachment parts in the end treatment.

(Problems and Points to be Solved by the Invention) These sewn parts and part of the zipper are formed by sewing, etc., but since there is an elastic pad material, it is difficult to perform sewing work such as joining stitches, and it is difficult to perform sewing work such as seaming. It was not possible to obtain a covering material that conformed to a complicated shape, and it was not possible to obtain a covering material that tightly adhered to the outer periphery of the padding material, resulting in a tacky state, which had the drawback of significantly impairing the appearance.

(Objective of the Invention) The object of the present invention is to enable the covering material of a headrest having a complex configuration to be closely covered with the padding.
To provide a method for processing the ends of a headrest covering material by which a headrest with an excellent appearance can be obtained.

Another object of the present invention is to easily and quickly process the ends of the covering material on the hole side of a perforated headrest, and to cover the padding material in close contact with the padding material, and to integrally fix the mesh to the hole. The present invention provides a method for processing the ends of a headrest covering material.

(Means for Solving the Problems) A feature of the present invention is a method for terminal treatment of a covering material of a headrest formed by attaching a padding material to a headrest frame, and then covering the outer periphery of the padding material with a covering material. In step 1, the ends of the facing material are welded by internal heating means while the padding material is pressed so that the facing end of the facing material is in close contact with the padding material.

(Example) Hereinafter, a first example of the method for treating the end of a headrest covering material according to the present invention will be outlined in detail with reference to FIGS. 1 to 4A and 4B. Although this embodiment shows a case in which the present invention is applied to a headrest with holes, the present invention is not limited to this.

FIG. 1 shows a headrest frame 2 of a perforated headrest and a perspective view of a pad material 3 attached to the outer periphery of the headrest frame 2. At the bottom of the headrest frame 2, there is a headrest stay. 4 are fixed together.

Holes 2a and 3a are formed in the center of the headrest frame 2 and the pad material 3, respectively, to penetrate in the front-rear direction.

An embodiment of the covering material 5 having a thermoplastic resin sheet portion covering the outer periphery of the padding material 3 is shown in FIG. The cover material 5 is cut and formed into a size that can cover the outer periphery of the pad material 3, and the ends 5a and 5b of the covering material 5 are located at the portions corresponding to the outer periphery of the pad material 3. ,
As shown in FIG. 5, the facing material 5 may be formed using two facing materials 6 and 7'i-.

After the headrest frame 2 and the padding material 3 are integrated as shown in FIG. 1, and the covering material 5 shown in FIG. Welding is performed by internal heating means 11. As the internal heating means 11, a high frequency welder or an ultrasonic welder is employed. In the case of internal heating means 11 using a high-frequency welder, a pair of electrode molds 12 and 13
The terminals 5, a, and 5b are disposed outside the terminals facing each other. Since the high frequency welder is conventionally known, a detailed explanation thereof will be omitted. However, since the covering material 5 itself is used as a heating element and does not rely on external heating, the surface of the covering material 5 is overheated and deteriorated.

This is an excellent internal heating means 11 that does not cause discoloration or the like.

As mentioned above, the pair of electrode molds 12 and 13 are covered with the covering material 50.
When high-frequency welding is performed on the outside of the facing terminals 5a and 5b, it is difficult to bring the facing material 5 and the padding material 3 into close contact with each other. A gap is likely to be formed between the pad material 3 and the pad material 3. Fourth
As shown by imaginary lines in Figure A, in the present invention, when the terminals 5a, 5b of the covering material 5 are sandwiched between the pair of electrode molds 12, 13, the terminals 5a, 5b of the covering material 5 are brought into close contact with the pad material 3. As shown in FIG.
Then, a high frequency voltage is applied to the pair of electrode molds 12 and 13 to weld them. At the same time as welding or after welding, unnecessary portions of the ends 5a and 5b of the covering material 5 are cut to form a perforated headrest 1 having a hole 1a as a product.

FIG. 4B shows a modification of the present invention, in which the covering material 5
Instead of pressing the pad material 3 by pulling the terminals 5a and 5b with the pair of electrode molds 12 and L3 so that they come into close contact with the pad material 3, a pair of electrode molds 12 and 13 are used to form the outer shape of the headrest 1. A corresponding pressing surface 12a.

13a and suppressing surfaces 1 of the electrode molds 12 and 13.
2a.

13a, and in this state, the terminals 5a and 5b of the covering material 5 are sandwiched between a pair of electrode molds 12 and 13,
Next, by applying a high frequency voltage, the covering material 5 is
The terminals 5'a and 5b can be welded while pressing the pad material S, and therefore, the covering material 5 can be attached to the pad material 3 in a state in which it is in close contact with the pad material S.

As shown in FIG. 5, when forming the facing material 5 by joining two facing materials 6 and 7, in addition to welding the outer peripheral edges 5a and 5b shown in FIG. As shown in the figure, the inner peripheral edge ends 5c and 5d are welded.

In this case, the inner peripheral edge terminals 5c, 5d and the outer peripheral edge terminal 5a.

5b may be welded first, but at least a tensile force is applied to the end to be welded later, and the pair of electrode molds 1
Weld by 2 and 13. The joining position of the facing materials 6 and 7 is not limited to the center of the inner peripheral edge and the outer peripheral edge, but can be joined at an appropriate position depending on the cut of the facing materials 6 and 7.

7 to 9 each schematically show a second embodiment of the present invention, and parts corresponding to those in the first embodiment are given the same reference numerals, and further detailed explanation will be omitted. Although omitted, in this second embodiment, the hole 1 of the perforated headrest 1
A net-like body 21 such as a net is integrally attached to a.

As shown in FIG. 8, a welding member 22 made of a synthetic resin material is fixed in advance to the outer peripheral edge of the net-like body 21.
The ends 5c and 5d of the facing material 5 are internally heated in the same manner as in the first embodiment described above, except that the welding member 22 of the first embodiment is attached integrally when welding the ends 5c and 5d of the facing material 5. Welding is performed using means 11. Therefore, this example
In ', a welded portion is formed on the hole la side of the perforated headrest 1, that is, on the inner peripheral edge side of the perforated headrest 1. Note that the mesh body 21 may be fixed to one of the terminals 5c and 5d of the covering material 5, and then both terminals 5C95d may be welded in the same manner as in the first embodiment.

(Effects of the Invention) The above is an embodiment of the method for treating the ends of a headrest covering material according to the present invention. The material can be closely covered with the pad material, the work is easy, the work efficiency can be significantly improved, and a headrest with an excellent appearance can be obtained. In addition, the work of attaching the mesh to the hole portion of the perforated headrest and the end treatment of the upholstery can be carried out at the same time, making it possible to obtain an extremely economical end-processing method for the upholstery of the headrest.

[Brief explanation of the drawing]

1. FIGS. 1 to 4 A and B each schematically show a first embodiment of the method for treating the end of a headrest covering material according to the present invention, and FIG. 1 shows a state in which the padding material is attached to the headrest frame. Fig. 2 is a perspective view of the covering material, Fig. 3 is a perspective view of the pad material shown in Fig. 1 in a state where the outer surface is covered, Fig. 2 is a perspective view of the covering material shown in Fig. 2, and Fig. 4 A is a perspective view of the internal heating. FIG. 3 is a sectional view taken along the line IV-IV of FIG. 3 showing a state in which the end of the covering material is welded by means; FIG. 4B is an explanatory cross-sectional view showing a modified example of the electrode mold;
Figures 5 and 6 show a modification in which two pieces of upholstery are joined together to form the upholstery of the headrest. The corresponding sectional views, FIGS. 7 to 9, respectively show the outline of the second embodiment of the present invention, in which FIG. 7 is a perspective view of a perforated headrest with a net-like body attached thereto, and FIG. 8 is a perspective view of a perforated headrest with a net-like body attached Front view of Figure 9 is Figure 4A
FIG. In the figure, 1... headrest, la... hole, 2...
- Headrest frame, 3... Pad material, 5, 6.
7... Covering material, 5a, 5b, 5c, 5d... Terminal,
DESCRIPTION OF SYMBOLS 11... Internal heating means, 12, 13... Electrode mold, 12a, 13a... Pressing surface, 21... Reticular body,
22...Welding member. Patent applicant ゝ″E m at:, 6 *+f
Table, first room Fig. 2 Fig. 4 A Fig. 4 B Fig. 8 Fig. 9

Claims (1)

[Scope of Claims] 1. In a method for treating the ends of a headrest covering material, which is formed by attaching a padding material to a headrest frame and then covering the outer periphery of the padding material with a covering material, the opposing ends of the covering material are A method for processing the ends of a headrest covering material, characterized in that the ends of the covering material are welded by internal heating means while the padding material is pressed so that the ends of the covering material come into close contact with the padding material. 2. The method for terminal treatment of a headrest covering material according to claim 1, wherein the internal heating means is a high-frequency welder. 3. The method for terminal treatment of a headrest covering material according to claim 1, wherein the internal heating means is an ultrasonic welder. 4. The method for processing the ends of a covering material for a headrest as set forth in claim 1, wherein the headrest is a perforated headrest having a hole in the center that penetrates in the front-rear direction. 5. The method for processing the ends of a headrest covering material according to claim 4, characterized in that when the ends of the covering material are welded by internal heating means, a net-like body is integrally welded to the hole portion of the headrest.