JPH0596515U - Band clamp - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a band tightening tool such as a utility pole band that has a simple structure and a flat and thin shape, and that is capable of easily and reliably tightening and fixing the band in a tensioned state. [Structure] A main body metal fitting 1, 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, and a band latching lever whose one end is rotatably connected to the holding metal fitting 2 by a support shaft 5. 4, the one end B1 of the band B is hooked to the band hooking holes 11 formed in the metal fitting 1, and the other end B2 of the band B is hooked on the free end of the hooking lever 4.
The band B is tightened by closing the holding metal fitting 2 with respect to the main body metal fitting 1, and the hand B is sandwiched between the main body metal fitting 1 and the band hooking lever 4 and the band hooking lever 4 and the holding metal fitting 2. It is characterized by fixing with.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 INDUSTRIAL APPLICABILITY The present invention, for example, fixes various flexible bands such as so-called utility pole bands used when 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.

[0002]

[Prior Art]

 Various band tightening tools of this type have been proposed in the past. For example, a band winding shaft is rotatably provided between opposed side plates of a metal fitting having a U-shaped cross section, and the band winding shaft and the opposite side plate are connected to each other. A ratchet mechanism for preventing reverse rotation is interposed between them. Then, one end of the band wrapped around the utility pole is inserted into the band retaining hole formed in the metal fitting and folded back to prevent it from coming off, and the other end of the band is wound around the winding shaft and fixed by tightening. It is known (see, for example, Japanese Utility Model Publication No. 54-17029) proposed by the present applicant.

Alternatively, a body metal fitting having a U-shaped cross section and a band holding metal fitting are connected by a shaft so as to be openable and closable, and one end of the band is hooked to a band hooking hole formed in the body metal fitting in the same manner as described above. The end is wrapped around the shaft part and hooked on the free end of the holding metal fitting, and the holding metal fitting is closed with respect to the main metal fitting to pull back the other end of the band and fold it back to tighten the band. It is known that the other end of the band is fixed by sandwiching it between free metal parts of a holding metal member and a main metal member (see, for example, Japanese Utility Model Publication No. 50-40757 proposed by the present applicant).

[0004]

[Problems to be solved by the device]

 However, as in the former case, the one in which the band winding shaft, the ratchet mechanism, etc. are provided has a complicated structure, a large number of parts and assembling man-hours, and a manufacturing cost increases. In addition, since the band take-up shaft, ratchet mechanism, etc. are provided, the height dimension in the direction perpendicular to the band is inevitably increased.For example, when the band is attached to a utility pole, it overhangs greatly from the peripheral surface of the utility pole and becomes an obstacle. There is a problem. On the other hand, as in the latter case, when the other end of the band is wrapped around the opening / closing axis of the holding metal fitting to the main body fitting and the holding metal fitting is closed, the band is pulled back while pulling the band and sandwiched between the holding metal fitting and the main body fitting to fix. However, the other end of the band cannot always be securely fixed, and the band often becomes loose. Further, as the diameter of the shaft portion is increased, the above-mentioned band pulling amount is increased and the tightening force can be increased, but there is a problem that the protruding height from the peripheral surface of the electric pole or the like is increased.

The present invention has been proposed in view of the above problems, and provides a band tightening tool having a simple structure, a flat and thin shape, and capable of easily and reliably tightening and fixing the band in a tensioned state. The purpose is to

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the band clamp according to the present invention has the following configuration. That is, the body metal fitting, a presser foot whose one end is openably and closably connected to the main body metal fitting by a connecting shaft, and a band latch lever whose one end is rotatably connected to the presser metal fitting by a supporting shaft are provided. One end of the band is hooked in the band hook hole formed in the body metal fitting, and the other end of the band is hooked on the free end of the latch lever. It is characterized in that the hand is sandwiched and fixed between the main body metal fitting and the band locking lever, and the band locking lever and the pressing metal fitting while being tensioned.

[0007]

[Action]

 With the band tightening tool configured as described above, for example, when tightening and fixing the band wrapped around the utility pole, insert one end of the band into the band locking hole and fold it back to insert it between the main fitting and the utility pole. When the clamp is clamped and the other end of the band is hooked on the free end of the latch lever to close the clamp metal fitting to the body metal fitting, the band is pulled closer and becomes tense, and the body metal fitting, the band latch lever and the band The hand is clamped between the latch lever and the presser foot, and the band can be securely tightened and fixed in a tensioned state.

[0008]

【Example】

 Hereinafter, the present invention will be specifically described with reference to the embodiments shown in the drawings. FIG. 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 partially cutaway 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 are formed by stainless steel plates or the like into a substantially U-shaped cross section, and the inner surfaces of the U-shaped metal fittings face each other. Together, one end is connected by a connecting shaft 3 so as to be openable and closable. Reference numeral 4 denotes a band locking lever, which is formed of a stainless steel plate or the like like the metal fittings 1 and 2 described above, and a supporting shaft 5 is inserted into a bent portion 4a for a bearing provided at one end of the metal fitting 1 to be attached to the main metal fitting 1. It is rotatably attached. Reference numeral 10 is a recess formed in the body fitting 1 for avoiding interference with the support shaft 5.

The body metal fitting 1 is provided with band locking holes 11, 11 for locking one end B1 of the band B. The body metal fitting 1 and the pressing metal fitting 2 are configured to close the holding metal fitting 2 to the body metal fitting 1. The engaging concave and convex portions 12 and 21 which are held in a retracted state are provided so as to face each other. In the case of the drawing, as shown in FIG. 3, they project outward to the opposite side plates 1a and 1a of the U-shaped main body metal fitting 1. The protrusion 12 is formed, and the recess (opening) 21 that engages with the protrusion 12 is formed on the opposing side plates 2a, 2a of the holding metal fitting 2. It is also possible to form an inwardly convex portion on the holding metal fitting 2 and form a concave portion on the main metal fitting 1 to engage with the convex portion.

In the above-mentioned configuration, when tightening and fixing a utility pole band of stainless steel or synthetic resin, for example, one end B1 of the band B wound around the utility pole P as shown in FIG. It is folded back through the stop hole 11 and sandwiched between the main body 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 on the free end side of the band locking lever 4. Wrap it around and fold it back to secure. At this time, when the above-mentioned band end B2 projects greatly outward, it is cut with a cutter or the like as necessary.

Next, when the holding metal fitting 2 is rotated in the closing direction (clockwise in the drawing) with respect to the main body fitting 1 as shown by the arrow in FIG. 4, the band locking lever 4 moves leftward in the drawing, When the other end B2 of the band is pulled up and becomes tense, and the pressing metal fitting 2 is further rotated, the concave portion 21 of the pressing metal fitting 2 is engaged with the convex portion 12 of the main metal fitting 1 and closed as shown in FIG. Be kept in a state. At that time, the inner surface of the holding metal fitting 2 is pressed against the free end portion of the latching lever 4 via the band and press-contacts, the free end portion of the latching lever 4 is slightly bent, and the restoring force of the inner surface of the metal fitting 2 The band B is sandwiched between and, and the band B is also sandwiched by pressure between the center portion of the latch lever 4 in the longitudinal direction and the inner surface of the main body fitting 1 to be firmly fixed.

Although the illustrated example has been described by taking the case of being applied to a telephone pole band as an example, the present invention can be applied to, for example, a band for packing and other various bands.

[0014]

[Effect of the device]

 As described above, according to the band tightening tool of the present invention, one end B1 of the band B is hooked in the band locking hole 11 of the body metal fitting 1, and the other end B2 of the band B is hooked in the band locking lever 4. When the press fitting 1 is closed with respect to the main body fitting 2, the band can be easily and securely tightened and fixed while the other end B2 of the band is pulled by the latching lever 4 and tensioned. .. Further, since it is not necessary to use a complicated mechanism such as the band winding shaft and ratchet mechanism as in the conventional case, the structure is simple, the mass production is easy and inexpensive, and the flat and thin structure can be realized. As described above, there is an advantage in that the band tightening tool does not greatly protrude outside the peripheral surface of the electric pole or the like and thus does not get in the way.

[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 partially cutaway front view of the band fastening tool.

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

FIG. 4 is a cross-sectional plan view showing a state in which the band is fastened by the band fastener according to the present invention.

[Explanation of symbols]

 1 Body Metal Fitting 2 Holding Metal Fitting 3 Connection Shaft 4 Band Latch Lever 11 Band Latching Part 12 Engagement Convex 21 Engagement Recess B Band

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor, Hideyuki Suzuki, 4-2-4, Kachidoki, Chuo-ku, Tokyo Stock company, Suda Manufacturing Co., Ltd. (72) Inventor, Pan Nagai, 4-4-2, Katsudoki, 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, Katsudoki, Chuo-ku, Tokyo Suda Manufacturing Co., Ltd. (72) Inventor Yasuji Ohashi 4-2-4 Kachidoki, Chuo-ku, Tokyo Inside Suda Manufacturing Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A body fitting, a holding fitting whose one end is openably and closably connected to the body fitting by a connecting shaft, and a band latching lever whose one end is rotatably connected to the holding fitting by a support shaft. With one end of the band hooked in the band hooking hole formed in the metal fitting, and the other end of the band hooked on the free end of the hooking lever, the pressing metal fitting is closed with respect to the main metal fitting. The band tightening tool is characterized in that the hand is sandwiched between the main body metal fitting and the band locking lever, and the band locking lever and the pressing metal fitting to be fixed.