JP3049959U - Fan-shaped cloth bellows - Google Patents

Abstract

(57) [Summary] [Purpose] In a U-shaped or L-shaped cloth fan-shaped bellows, the valley viewed from the outside of the side is fixed diagonally by means of sewing or heat fusion. By doing, from the side bottom surface toward the top surface, the opening width of the corrugated valley is made to expand temporarily, any opening angle of the sector, and at any point, by removing unnecessary looseness, Demonstrate a smooth cover function. [Structure] The fan-shaped bellows cover material made of cloth is formed with the necessary folds at the corrugations and corners, and the bellows shape is formed into a folded, L-shape and U-shape. And is fixed by bonding with an adhesive.

Description

[Detailed description of the invention]

[0001]

[Problems to be solved by the invention]

 The present invention is applied as a cover of an industrial machine such as a table lifter, and the conventional fan-shaped bellows 10 applied to those uses is obliquely fixed to the corrugated extension group as shown in the present invention. No processing is applied. The conventional cloth fan-shaped bellows 10 is basically composed of a wave-shaped rear group 11, a wave-shaped extending group 12, and an end plate 30. That is, it is a method of expanding and contracting in a fan-shaped manner in the direction of arrow C 'around the bottom (base A' in FIG. 5) of the L-shaped or U-shaped bellows having a normal shape, and the base A 'has a wavy shape. Each fold of the extension group 12 is easy to loosen, and as shown in the part A, it is easy to partly jump out or be disturbed, not only impairing the original cover function but also interfering with the machine and causing early damage. I was

[0002]

[Means for Solving the Problems]

 In order to solve the above-mentioned problem, as shown in FIG. 3, according to the present invention, each element of the corrugated extension group 1-2 is sewing-stitched at the angle θ as shown in FIG. Since the base is fixed by means of an adhesive, the vicinity of the base A in FIG. 4 is narrowed to a certain extent in a natural form, and the waveform is extended at any opening angle in the arrow direction C. Avoid unnecessary sagging of the folds anywhere in the swarm.

[0003]

[Effect of the invention]

 By fixing the fixing line section 1-3 at the angle θ as described above, the corrugated extending group section 1-2 is moved clockwise and counterclockwise as indicated by an arrow C about the base A of the sector bellows 1 as a center. Regardless of the angle condition due to the movement, and any position of the waveform extending group 1-2, there is no unnecessary loosening of the folds. (The center of rotation of the mark C is not one point). Furthermore, one end of the end plate 3 shown in FIG. 4 is fixed (not shown), and the other is movable. Can be realized.

[0004]

[Detailed description with drawings]

 First, the cloth fan-shaped bellows 1 of the present invention has a fold forming a boundary between the group of folds 2-1 in the width direction of the bellows of FIG. A cover material 2 provided with a group 2-2 and having been subjected to a paste processing. Further, a fold group 2'-1 in the bellows width direction of FIG. 2 and a fold group 2'-2 which forms a boundary between the waveform back group 1'-1 and the waveform extension group 1'-2 are provided. The cover material 2 'is provided with a cloth material 2'-3, which has been subjected to a paste treatment as required, and a film 2'-4 for rigidity and reinforcement of a cloth sector bellows. . FIG. 3 shows the case of the cover material 2 ′ having a large application in the material of FIG. 2 (the case of the cover material 2 is omitted), and is folded using the cover material 2 ′. The corrugated extension group 1-2 is fixed at an angle of θ so as to be inclined as shown in the figure, and as shown in FIG. 4, the end plate 3 is fixedly attached to the entire surface in the expansion and contraction direction of the bellows and the rear surface. The fan-shaped bellows made of cloth, which can move smoothly in the direction of arrow C around the center of A, are generally divided into L-shape and U-shape. 6, shown in FIG. However, in order to make the main part of the present invention easy to understand, a perspective view excluding the end plate is shown.

[Submission date] April 28, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents] [Detailed description of the invention]

The present invention is applied to a cover of an industrial machine such as a table lifter, etc. A conventional fan-shaped bellows applied to those uses has a shape as shown in FIG. The bellows 10 is basically composed of a wave back group 11, a wave extension group 12 extending from a corner bent from the wave back group 11, and an end plate 30 forming a side of the bellows. In other words, the L-shaped or U-shaped bellows of the normal shape are fan-shaped in the direction of arrow C 'around the base A' in FIG. 4, and the base A 'has a corrugated extension group. Each of the twelve folds is easy to loosen, and as shown in the abnormal part A, it is easy to partially jump out or disturb, not only impairing the original cover function but also interfering with the machine and causing early damage. Was.

In order to solve the above problem, the present invention relates to a reinforcing film (hereinafter, referred to as a film) in which folds 2-1 are provided at a constant pitch on one side of an adhesive cloth 2-3 in FIG. ) For reinforcement, an object of the required length of F1 is attached and one end of the same length having the crease 2-1 is formed into a sawtooth-like waveform at every pitch. A saw blade-shaped portion 2-2 of a film (hereinafter, referred to as a film) F2 is abutted so that the extension lines of the fold line 2-1 coincide with each other to form a fan-shaped bellows body cover material 2 made of cloth. .

[0003] The cloth fan-shaped bellows main body cover material 2 is folded in a bellows shape along the fold line 2-1 so as to form a mountain valley, and the mountain valley-shaped portion of the film F2 is opposed to the end of the film F1. The triangular exposed portion 2-3A of the gluing cloth is formed by butting, but the triangular exposed portion 2-3A of the gluing cloth formed by the contour of the reinforcing film F1 and the valley of the reinforcing film F2 is formed. When folded back along the contour of the saw blade portion 2-2, the bellows 1-1 on the main body side where the F1 is disposed and the bellows 1-2 on the foot side where the film F2 is disposed in FIG. 2 and is folded back at approximately 90 °, and the folded back bellows 1-2 are directed toward the terminal of the foot side bellows 1-2 from the inner corners of the crests of the crests and valleys. Diagonal sticking The lines 1-3 are fixed by sewing, respectively, so that the fan-shaped opening width is temporarily increased from the end A of the foot bellows 1-2 toward the corner side as shown in FIG. Characteristic fan-shaped bellows made of cloth. As a method for fixing the fixing lines 1-3, not only sewing but also a method using an adhesive or a method using heat fusion may be used. The thus obtained cloth fan-shaped bellows 1 of the present invention can smoothly form a fan-shaped shape along the fixing line 1-3 around the portion A corresponding to the pivot of the fan in FIG. I can do it. That is, as shown in FIG. 3, the portion A corresponding to the main point of the fan is narrowed down by means of sewing, bonding, heat fusion or the like as described above, so that the folds are loosened or distorted like the conventional fan-shaped bellows. It is possible to keep a stable shape without any trouble. For reference, FIG. 5 shows a U-shaped fan-shaped bellows and FIG. 6 shows an L-shaped fan-shaped bellows before attaching the end plate of the cloth fan-shaped bellows of the present invention.

[Brief description of the drawings]

FIG. 1 is a partial perspective view of a cover material of a cloth fan-shaped bellows.

FIG. 2 is a partial perspective view of a cover material of a cloth fan-shaped bellows.

FIG. 3 is a partial perspective view of the corrugated extension group, which is the main component of the present invention, showing the oblique fixation.

FIG. 4 is a partial perspective view of the cloth fan bellows according to the present invention;

FIG. 5 is a partial perspective view of a conventional cloth fan-shaped bellows.

FIG. 6 is a perspective view of an L-shaped cloth fan-shaped bellows excluding an end plate.

FIG. 7 is a perspective view of a U-shaped cloth fan-shaped bellows excluding an end plate.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Cloth fan-shaped bellows 2 Cloth cover material 3 End plate 2 'Cloth cover material 1-1 Corrugated back group 1-2 Corrugated extension group 1-3 Dotted line part (fixed line) 2-1 Fold group 2-2 Fold group 2' -1 Fold group 2'-2 Fold group 2'-3 Cloth glue cover 2'-4 Reinforcement film 10 Conventional cloth fan bellows 11 Conventional cloth fan bellows, corrugated back group 12 Conventional cloth fan bellows Extension group 30 End plate of conventional cloth fan bellows A Base of cloth fan bellows A 'Base of conventional cloth fan bellows C Rotation direction C' Rotation direction of conventional cloth fan bellows θ Fixed line angle

[Procedure amendment]

[Submission date] April 28, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Name of device] Fan-shaped cloth bellows

[Utility model registration claims]

[Brief description of the drawings]

FIG. 1 is a partial perspective view of a cloth fan bellows body cover material.

FIG. 2 is a perspective view showing a fixing line portion of the cloth fan-shaped bellows of the present invention as viewed from the inner surface side.

FIG. 3 is a partial perspective view of the cloth fan bellows according to the present invention;

FIG. 4 is a partial perspective view of a conventional cloth fan-shaped bellows.

FIG. 5 is a perspective view of a U-shaped cloth fan-shaped bellows excluding an end plate.

FIG. 6 is a perspective view of the fan-shaped bellows made of an L-shaped cloth when an end plate is removed.

[Description of References] 1 Fabric fan bellows of the present invention 2 Fabric fan bellows body cover material 3 End plate 1-1 Body bellows 1-2 Foot bellows 1-3 Fixing line 2-1 Fold 2-2 Saw blade shape of film F2 Part 10 Conventional cloth fan bellows 11 Wave back group of conventional cloth fan bellows 12 Wave extension group of conventional cloth fan bellows 30 End plate of conventional cloth fan bellows A Base of fabric fan bellows of the present invention A 'Conventional cloth Base of fan-shaped bellows C Opening direction of fan-shaped bellows of the present invention C 'Conventional fan-shaped bellows opening direction

[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

FIG. 4

FIG. 5

FIG. 6

[Procedure amendment]

[Submission date] September 1, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

Claims (5)

[Utility model registration claims] 1. A fabric cover material 2 provided with fold groups 2-1 and 2-2 and a fabric cover material 2 'provided with fold groups 2'-1 and 2'-2 for forming a bellows shape.
FIG. 3 (shown as cover material 2 in FIG. 3 and omitted from the cover 2 ′ in FIG. 3) showing the folded state, and a wave-shaped back face group 1-1 having a B shape, A corrugated extension group 1-2 extending therefrom is formed, and each of the corrugated extension groups 1-2 is fixed to the diagonal dotted line group (fixation line) 1-3 by valley surface matching. Plates 3 are fixedly formed on both sides of the back group 1-1 and the corrugated group 1-2, and the corrugated group 1-2 has a width L, a height H, and a corrugated group 1-. 2 is a cloth fan-shaped bellows having an angle θ between a dotted line (fixed line) 1-3 and a wave extending group heading toward the wave back group from the bottom outer side toward θ. (1) Tan ⁻¹ (L / H / 3) <θ <Tan
^-1 (1.8 × L / H) (2) The dotted line portions (fixing lines) 1-3 of the corrugated extension group 1-2 were fixed to the valley surfaces by sewing with a sewing machine. Characterized by a fan-shaped bellows made of cloth. 2. The method according to claim 1, wherein a dotted line portion (fixing line) 1-3 of each of the corrugated extending groups 1-2 is fixed to the valley surface by heat fusion processing. Fabric fan bellows. 3. The fan sector according to claim 1, wherein a dotted line portion (fixing line) 1-3 of each pitch of the corrugated extension group 1-2 is back-to-back and fixed with an adhesive. Bellows. 4. The L according to claim 1, 2 or 3, having one waveform extension group extending to one waveform back group 1-1.
Fan-shaped bellows made of letter-shaped cloth. 5. The apparatus according to claim 1, further comprising: two corrugated extension groups 1-2 extending to both ends of one corrugated back face group 1-1.
U-shaped fan-shaped bellows of U-shaped cloth described in 2, 3.