JPS5811241Y2 - Edging devices such as the seat plate or back plate of a chair - Google Patents

Description

[Detailed description of the invention] The present invention relates to a novel edging device for the seat or back of a chair, and the illustrated embodiment is a core material 11 formed by superimposing a sponge 10 on the upper surface of a plywood core board 9. A thermoplastic soft synthetic resin sheet 12.12' is brought into contact with both the upper and lower surfaces of the Toshiko core material 11, and the same sheet 12.12' is brought into contact with the upper and lower surfaces of the core material 11.
2.12' is formed by high-frequency welding the entire circumferential edges of the core material 11 to each other on the outside of the periphery of the core material 11 to form the original plate A. Separately from this, the above-mentioned elastic sheet) 12.12
The original plate is made of a thermoplastic hard synthetic resin material that is different from the original plate A and is integrally provided on both upper and lower edges of the inner curved surface of the main part 1 and the mutual part 1, which are curved in the longitudinal direction and have the same width as the thickness of the original plate when compressed. Inwardly inclined clamping edges 2, 2' which hold the peripheral edge of the main part 1 from above and below, and inwardly inclined projecting edges 3 integrally provided on both upper and lower edges of the outer curved surface of the main part 1.
3', and by inserting the peripheral edge of the original plate I between the pinching edges 2 and 2' of this hemming member 4, the main portion 1 is straightened and straightened. The edges 2 and 2' are leveled and the edging member 4 is hung around the periphery of the original plate A, and the nails 5 are driven into the main part 1 of this edging member 4 to fix the edging member 4 to the periphery of the original plate A. At the same time, in the dovetail groove 6 formed by the protruding edges 3 and 3', there is a decorative crescent-shaped cross section made of a thermoplastic hard synthetic resin material, which is different from the seams 12 and 12' and the border member 4. A belt 7 is fitted, and this decorative belt 7 hides the heads of the nails 5 and also covers the edges 2, 2'.
It has an inward tilting force added to it.

Since the present invention has a diagonal-like configuration, it is possible to prevent peeling of the mutually welded portions of the seams (12 and 12') due to contact with other objects by covering them with the hemming member 4, but especially in the diagonal The main part 1 is curved in the longitudinal direction with the same width as the thickness of the seat plate or back plate when compressed, and the upper and lower both edges of the inner curved surface of the main part 1 are made of synthetic resin material with elasticity. Inwardly inclined ridges 12° 12' that sandwich the peripheral edge of the provided seat plate or back plate etc. from above and below, and inwardly inclined ridges 3 integrally provided on both upper and lower edges of the outer curved surface of the mating portion 1, 3', and the main part 1 is constructed by inserting the peripheral edge of a seat plate, back plate, etc., between the nipping edges 2 and 2' of this hemming member 4. Straighten the edges 2 and 2' to make them horizontal, hang the edge member 4 around the periphery of the seat plate or back plate, etc., and drive nails or rivets 5 into the main part 1 of the edge member 4. Since the edging member 4 is fixed to the circumferential surface of the seat plate, back plate, etc., it is not only effective to securely fix the edging member 4 to the periphery of the seat plate, back plate, etc. In the invention, the main part 1 is curved in the longitudinal direction and the clamping edges 2, 2' are inclined inward, so that when the edging member 4 is attached to the periphery of the seat plate, back plate, etc. The clamping edges 2, 2' strongly clamp the periphery of the seat plate or back plate, etc., in an attempt to restore it, and this creates a gap between the clamping edges 2, 2' and the seat (12.12'). This has the effect of significantly increasing the commercial value of the chair without causing any damage to the product.In addition, in the present invention, by fitting the decorative belt 7 between the ridges 3 and 3', the ridges 2 and 2'
Since an inward tilting force is applied to the rims 2 and 2', the impact force of the rims 2 and 2' against the seat plate or the back plate A can be significantly strengthened, and the above-mentioned close contact between the two can be further solidified. It is extremely effective.

[Brief explanation of the drawing]

The figures show an embodiment of the edging device such as the seat plate or back plate of the chair of the present invention, in which Fig. 1 is a perspective view of the whole, and Fig. 2 is an enlarged view taken along the line A-A in Fig. 1. Cross-sectional view, Figure 3 is the 1st
FIG. 2 is an enlarged sectional view taken along line A2A in FIG. A... Seat plate, 1... Main part, 2.2'.
....edge, 3,3'... ridge, 4...
... Edge member, 5 ... Nail, 6 ... Dovetail groove, 7 ... Decorative belt, 9 ... Core plate, 10 ... ...Sponge, 11...Core material, 12.12'...Synthetic resin sheet.

Claims (1)

[Scope of utility model registration request] A seat made of an elastic synthetic resin material and integrally provided on both upper and lower edges of the internal curved surface of the main part 1 and the upper part 1, which are curved in the longitudinal direction and have the same width as the compressed thickness of the seat plate or back plate, etc. An inwardly slanted clamping edge 2 that clamps the periphery of a board or backplate etc. from above and below.
2' and inwardly inclined protrusions 3, 3' integrally provided on both upper and lower edges of the outer curved surface of the main portion 1, and a long edging member 4 is constituted by the edging member 4. By inserting the peripheral edge of the seat plate or back plate A between the edges 2 and 2', the main part 1 is made straight, and the edges 2 and 2' are made horizontal, so that the hemming member 4 can be attached to the seat plate or the back plate. A hook is placed around the periphery of the plate etc. A, and nails or rivets 5 are driven into the main part 1 of the hemming member 4 to fix the hemming member 4 to the circumferential surface of the seat plate or back plate etc. A, and the projecting edges 3, A decorative belt 7 made of a synthetic resin material is fitted into the dovetail groove 6 formed by the protruding portion 3'.
A edging device such as the seat plate or back plate of a chair that applies an inward tilting force to the chair.