JPH066712U - Band clamp - Google Patents

Abstract

(57) [Abstract] [Purpose] A band tightening tool for utility pole bands, etc., which enables easy and reliable tightening and fixing of metal bands with low elongation, rubber or plastic bands, etc. The purpose is to provide accessories. [Structure] At least a main body metal fitting 1 and a holding metal fitting 2 whose one end is openably and closably connected to the main body metal fitting 1 by a connecting shaft 3 are provided. The other end B2 of the band B is hooked around the connecting shaft 3 to be hooked on the free end 23 of the holding metal fitting 2, and the holding metal fitting 2 is closed with respect to the main body metal fitting 1 so that the band is formed. In the band tightening tool for pulling the other end B2 to tension the band B, and sandwiching and fixing the other end B2 of the band between the free end 23 of the holding metal fitting 2 and the main body metal fitting 1, the other end B2 of the band It is characterized in that a substantially arc-shaped elastic piece 22 around which is wound is integrally provided on the base portion of the holding metal fitting 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention, for example, fixes various cables such as so-called utility pole bands used for fixing cables, conduits, protective plates, etc. to the peripheral surface of utility poles and mounting support brackets for advertisements, street lights, etc. The present invention relates to a band tightening tool for fixing and fixing.

[0002]

[Prior art]

 In this type of band tightening tool, a body fitting and a holding fitting whose one end is openably and closably connected to the body fitting are provided, and one end of the band is locked in a band hook hole formed in the body fitting. Then, wrap the other end of the band around the connecting shaft and hook it on the free end of the holding metal fitting, and close the holding metal fitting to the body fitting to pull the other end of the band and pull the band. It is known to tighten and to fix the other end of the band by sandwiching the other end of the band between the free end of the retainer and the main body (for example, see Japanese Utility Model Publication No. 50-40757).

[0003]

[Problems to be solved by the device]

 However, since the conventional one has a structure in which the other end of the band is wound directly around the cylindrical body fitted to the connecting shaft or around the connecting shaft, it is not suitable for a metal band or the like having a small elongation. When the tensile force exceeds a certain level, the metal fittings may not be confined in the metal fittings side, and the rubber and plastic bands may be broken.

The present invention has been proposed in view of the above problems, and it is a band tightening that can easily and securely fix even a metal band or a band made of rubber or plastic having a small elongation. The purpose is to provide ingredients.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the band fastener according to the present invention has the following configuration. That is, at least the main body metal fitting and the holding metal fitting whose one end is openably and closably connected to the main body metal fitting are provided, one end of the band is hooked to the band hooking hole formed in the main metal fitting, and the other end of the band is held. The band is wound around the connecting shaft and hooked at the free end of the holding metal fitting, and the holding metal fitting is closed with respect to the body fitting to pull the other end of the band and tension the band. In a band tightening tool that clamps the end between the free end of the holding metal fitting and the main body metal fitting, a substantially arc-shaped elastic piece that winds the other end of the band is integrally provided at the base of the holding metal fitting. Is characterized by.

[0006]

[Action]

 As described above, the elastic piece in the shape of a circular arc, around which the other end of the band is wound, is integrally provided on the base of the holding metal fitting, so that the band can be tightened when the holding metal fitting is rotated toward the body metal fitting side to tighten the band. When an excessive tensile force is applied to the elastic piece, the elastic piece is bent and the tensile force is relieved, so that the elastic piece can be tightened and fixed in a proper tension state.

[0007]

【Example】

 Hereinafter, the present invention will be specifically described with reference to the embodiments shown in the drawings. 1 is a cross-sectional plan view showing an embodiment of a band tightening tool according to the present invention, and FIG. 2 is a front view thereof. In the figure, reference numeral 1 is a main body metal fitting, 2 is a holding metal fitting, and both metal fittings 1 and 2 are formed of stainless steel plates or the like into a substantially U-shaped cross section. The main body metal fittings 1 and the holding metal fittings 2 are arranged such that the opening sides of the U-shaped cross section face each other, and are inserted into the opposite side plates 1a, 1a, 2a, 2a at one longitudinal end of both metal fittings 1, 2. It is connected by a connecting shaft 3 so that it can be opened and closed.

The body fitting 1 is provided with band engaging holes 11, 11 for engaging one end B1 of the band B. The body fitting 1 and the holding fitting 2 are configured to close the holding fitting 2 to the body fitting 1. Corresponding engagement concave and convex portions 12 and 21 are provided to hold the same in a retracted state. As shown in FIG. 3, as the engaging concave and convex portions 12 and 21, concave portions (openings) 12 are formed in the opposite side plates 1a and 1a of the U-shaped main body metal fitting 1 and convex portions (projections) that engage with the concave and convex portions are formed. 21 is formed on the opposing side plates 2a, 2a of the pressing metal fitting 2, but a concave portion is formed on the pressing metal fitting 2 and a convex portion that engages with the concave portion is formed on the main metal fitting 1, and so on.

Further, a substantially arcuate elastic piece 22 around which the other end of the band is wound is integrally provided on the base portion of the holding metal fitting 2. In the case of the figure, the connecting shaft 3 is wound so as to be substantially concentric. A substantially semi-circular elastic piece 22 is continuously and integrally provided on the substrate surface of the U-shaped pressing metal fitting 2. Both ends of the arc-shaped elastic piece 22 in the generatrix direction are formed in a separated state by forming a slit-shaped gap S between the pressing metal fitting 2 and the opposite side plate 2a. It is configured to be elastically deformable.

In the above-mentioned configuration, when tightening and fixing a utility pole band such as stainless steel or synthetic resin, one end B1 of the band B wound around the utility pole P as shown in FIG. It is passed through the stop hole 11 and folded back, and is fixed by sandwiching the band B between the main body metal fitting 1 and the electric pole P or the like. Then, with the holding metal fitting 2 open, the other end B2 of the band B is wound around the electric pole P or the like and passed between the main body fitting 1 and the holding metal fitting 2, and the tip thereof is at the free end 23 side of the holding metal fitting 2. Fold back and secure. At this time, if the band end B2 folded back on the free end side of the holding metal fitting 2 is too long, it is cut with a cutter or the like if necessary.

Next, when the holding metal fitting 2 is rotated in the closing direction with respect to the main metal fitting 1 as shown by the arrow in FIG. 4, the other end B2 of the band is wound around the arcuate elastic piece 22 and is pulled by hand, so that the band B is pulled. get nervous. At this time, when an excessive tensile force is applied to the band B, the elastic piece 22 bends in the radial direction, that is, in the direction of the connecting shaft 3 to function as a cushion, and the band B is within the elastic limit of the band B. It is possible to maintain moderate tension.

When the holding metal fitting 2 is further rotated while the band B is tensioned as described above, the concave portion 21 of the holding metal fitting 2 is engaged with the convex portion 12 of the main body metal fitting 1 as shown in FIG. 3 and closed. In addition to being held in the state, the band B is sandwiched between the free end 23 of the holding metal fitting 2 and the main body metal fitting 1 to prevent the band B from coming off and fixing.

5 and 6 show another embodiment of the band clamp according to the present invention, FIG. 5 is a cross-sectional plan view thereof, and FIG. 6 is a front view thereof. The present embodiment is provided with a cover 4 for covering them in addition to the main body metal fitting 1 and the holding metal fitting 2, and the other structure is substantially the same as that of the above embodiment and has the same function as the above embodiment. The members will be described with the same reference numerals. In the present embodiment, the cover 4 is formed in a substantially U-shaped cross section by a stainless steel plate or the like like the main body metal fitting 1 and the pressing metal fitting 2, and the main body is formed by the connecting shaft 3 inserted into the opposite side plates 4a, 4a. It is connected to the metal fitting 1 and the holding metal fitting 2 so as to be openable and closable.

Further, in the above-mentioned embodiment, the engaging convex portion 21 for the engaging concave portion 12 of the main body metal fitting 1 is provided on the pressing metal fitting 2, but in the present embodiment, it is engaged with the opposing side plates 4a, 4a of the cover 4. A compound convex portion 41 is provided. The cover 4 can be held in a closed state with respect to the main body fitting 1 by engaging the engagement convex portion 41 with the engagement concave portion 12 of the main body fitting 1, and thereby the holding metal fitting 2 can also be held. It can be made to hold in the closed state with respect to 1.

In the above-mentioned configuration, when fastening a utility pole band or the like by tightening, the one end B1 of the band B wound around the utility pole P is hooked in the band hooking hole 11 in the same manner as in the above-mentioned embodiment. As shown in FIG. 8, the other end B2 of the band B is inserted between the holding metal fitting 2 and the cover 4 while the holding metal fitting 2 and the cover 4 are open. Then, the other end B2 of the band is folded back at the free end of the retainer fitting 2 and closed in the main body fastener 1 as in the case of the above-described embodiment. At that time, as shown in FIG. It can be closed with the other end B2 of the band sandwiched between.

Further, the elastic piece 22 provided integrally with the base of the holding metal fitting 2 can tighten and fix the band B in a moderate tension as in the case of the above-mentioned embodiment, and the main body metal fitting 1, the holding metal fitting 2, etc. can be covered. It is covered with 4 and has a good appearance. Although the example shown in the figure is applied to a telephone pole band as an example, the present invention can be applied to a band for packing and other various bands.

[0017]

[Effect of device]

 As described above, in the band tightening tool of the present invention, since the elastic piece 22 having a substantially arc shape around which the band is wound is integrally provided on the base portion of the holding metal fitting 2, the band B is tightened in a moderately tensioned state. It can be fixed, and even if it is a metal band such as the above-mentioned stainless band having a small elongation, it does not become impossible to confine the holding metal fitting 2 to the main metal fitting 1, and Rubber and plastic bands can be fastened easily and securely without breaking. Further, since the band tightening tool of the present invention has a simple structure, it can be manufactured easily and inexpensively, and the thickness of the entire tightening tool can be made thinner than the conventional one.

[Brief description of drawings]

FIG. 1 is a cross-sectional plan view showing an embodiment of a band tightening tool according to the present invention.

FIG. 2 is a front view of the band fastening tool.

3 is a sectional view taken along the line AA in FIG.

FIG. 4 is a cross-sectional plan view of a state in which the band is fastened by the band fastening tool of the above embodiment.

FIG. 5 is a cross-sectional plan view showing another embodiment of the band clamp according to the present invention.

FIG. 6 is a front view of the band fastening tool.

7 is a cross-sectional view taken along the line AA in FIG.

FIG. 8 is a cross-sectional plan view of a state in which the band is fastened by the band fastening tool of the above embodiment.

FIG. 9 is a cross-sectional plan view showing a state in which the band is fastened by the band fastening tool of the above embodiment.

[Explanation of symbols]

 1 Body Metal Fitting 2 Holding Metal Fitting 3 Connection Shaft 4 Cover 11 Band Hooking Part 12 Engagement Concave 21, 41 Engagement Convex 22 Elastic Piece B Band

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor, Hideyuki Suzuki, 4-2-4, Kachidoki, Chuo-ku, Tokyo Suda Manufacturing Co., Ltd. (72) Inventor, Pan Nagai, 4-2-4, Kachidoki, Chuo-ku, Tokyo Suda Manufacturing Co., Ltd. (72) Inventor Hajime Matsuda 4-2-4 Kachidoki, Chuo-ku, Tokyo Stocks Suda Manufacturing Co., Ltd. (72) Tadahiro Mukata 4-4-2 4 Katsudoki, Chuo-ku, Tokyo Suda Manufacturing Co., Ltd. (72) Inventor Yasuji Ohashi, 4-2-4 Kachidoki, Chuo-ku, Tokyo, Suda Manufacturing Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. At least a main body metal fitting, and a holding metal fitting whose one end is openably and closably connected to the main body metal fitting,
Hook one end of the band into the band hook hole formed in the body metal fitting, wrap the other end of the band around the above connecting shaft and hook it to the free end of the holding metal fitting, and attach the holding metal fitting to the body metal fitting. The other end of the band is a band tightening tool that pulls the other end of the band closer to tighten the band by closing the other end of the band and clamps the other end of the band between the free end of the metal fitting and the metal fitting. A band tightening tool, characterized in that a substantially arc-shaped elastic piece around which a tongue is wound is integrally provided on a base part of a holding metal fitting. 2. A cover is provided on the connecting shaft between the main body fitting and the holding fitting so as to be openable and closable, and when the holding fitting is closed with respect to the main body fitting, the band or the like is provided between the holding fitting and the cover. The band tightening tool according to claim 1, wherein the ends are clamped.