JPH083689Y2 - Band clamp - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] The present invention, for example, on the peripheral surface of a utility pole,
The present invention relates to a band fastener for fastening various flexible bands such as a telephone pole band used for fixing a cable, a conduit tube, a protective plate, or the like, or attaching a support bracket for an advertisement or a street light.

[0002]

2. Description of the Related Art Various band fasteners of this type have been proposed in the prior art. For example, a band winding shaft is rotatably provided between opposed side plates of a main body bracket having a U-shaped cross section, and the band winding shaft is connected to the band winding shaft. A ratchet mechanism for preventing reverse rotation is interposed between the opposite side plate. Then, one end of the band wound around a telephone pole or the like is inserted through a band hooking hole formed in the main body bracket, folded back and locked, and the other end of the band is wound around the winding shaft and fastened and fixed. This is known (for example, see Japanese Utility Model Publication No. 54-17029 proposed by the present applicant).

Alternatively, a main body fitting having a U-shaped cross section and a band presser fitting are connected so as to be openable and closable with a shaft, and one end of the band is hooked into a band engaging hole formed in the main body fitting in the same manner as described above. An end is wound around the shaft portion, hooked on a free end of the holding member, and the holding member is closed with respect to the main body member to turn the other end of the band while pulling the other end of the band to tighten the band. There is known a device in which the other end is sandwiched and fixed between the free ends of the presser fitting and the main body fitting (for example, see Japanese Utility Model Publication No. 50-40757 proposed by the present applicant).

[0004]

However, as in the former case, the one provided with a band winding shaft, a ratchet mechanism, and the like has a problem that the structure is complicated, the number of parts and the number of assembling steps are large, and the manufacturing cost is increased. Further, since the band winding shaft and the ratchet mechanism are provided, the height in the direction perpendicular to the band is inevitably increased. For example, when the band is attached to a utility pole or the like, it overhangs greatly from the peripheral surface of the utility pole and becomes an obstacle. There is. On the other hand, when the band is pulled around the other end of the band around the opening / closing axis of the holding member with respect to the body member and the holding member is closed as in the case of the latter, the band is turned back while being pulled and fixed between the holding member and the body member. However, the other end of the band cannot always be securely fixed, and the band may often be loosened. Also, 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 disadvantage that the height of the electric pole or the like protruding from the peripheral surface increases.

The present invention has been proposed in view of the above problems, and provides a band fastener which has a simple structure, is flat and thin, and can easily and securely tighten and fix the band in a tensioned state. The purpose is to:

[0006]

In order to achieve the above object, the band tightening device according to the present invention has the following structure. That is, one end of the band is provided with a main body metal fitting, a holding metal fitting whose one end is openably and closably connected to the main body metal fitting by a connecting shaft, and a band locking lever whose one end is rotatably connected to the holding metal fitting by a support shaft. The band is tightened in the band locking hole formed in the main body metal fitting, and the other end of the band is folded back at the free end side of the locking lever. And the other end of the band folded back on the free end side of the locking lever,
It is characterized in that the cut-and-raised piece formed on the body fitting is pressed into contact with the cut-and-raised piece and the other end of the band is sandwiched between the cut-and-raised piece and the free end of the locking lever.

[0007]

As described above, one end of the band is hooked in the band hooking hole as described above, and the other end of the band is pressed against the cut-and-raised piece formed in the main body metal fitting, and the cut-and-raised piece and the locking lever are Since the band is sandwiched between the free end and the free end, the band can be easily and securely fastened and fixed in a tensioned state.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A band tightening tool according to the present invention will be specifically described below with reference to the embodiments shown in the drawings. FIG. 1 is a cross-sectional plan view showing an embodiment of a band fastener according to the present invention, and FIG. 2 is a partially cutaway front view thereof.

In the drawings, reference numeral 1 denotes a main body fitting, and 2 denotes a presser fitting. Both fittings are each formed in a substantially U-shaped cross section by a stainless steel plate or the like, and the inside faces of the two U-shaped fittings face each other and one end thereof. Are connected by a connecting shaft 3 so that they can be opened and closed. Reference numeral 4 denotes a band locking lever, which is formed of a stainless steel plate or the like like the above-mentioned metal fittings 1 and 2, 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.

[0010] One end B1 of the band B is
There are provided band hooking holes 11 for hooking, and a cut-and-raised piece 12 for press-contacting and sandwiching the other end B2 of the band B with the free end of the locking lever 4 folded back. Further, the opposing side plates 1a, 1a of the main body metal fitting 1 and the opposite side plates 2a, 2a of the holding metal fitting 2 which are formed in the U-shape as described above are provided with engaging concave and convex portions for holding the holding metal fitting 2 in the state of being closed in the main body metal fitting 1. The parts 13 and 21 are provided correspondingly. In the case of the figure, the convex portion 13 protruding outward is formed on the opposite side plate 1a of the main body fitting 1, and the concave portion (opening) engaging with the convex portion 13 is formed.
21 is formed on the opposite side plate 2a of the holding metal fitting 2, but an inward convex portion is formed on the holding metal fitting 2 and a concave portion to be engaged with the convex portion is formed on the main body metal fitting 1, or other suitable conditions.

In the above configuration, when a power pole band made of, for example, stainless steel or synthetic resin is tightened and fixed, as shown in FIG.
Is folded back through the band hooking hole 11 and clamped between the main body fitting 1 and the utility pole P or the like. Then, the other end B2 of the band B is wrapped around a utility pole P or the like, and the other end B2 of the band is passed between the main body fitting 1 and the holding fitting 2 in a state where the holding fitting 2 is opened, and the tip thereof is a band locking lever. Fold back at the free end side of 4. At this time, when the band end B2 described above largely projects outward, it is cut with a cutter or the like as necessary.

Next, when the pressing member 2 is rotated in the direction of the arrow in FIG. 4, the band locking lever 4 moves to the left in the figure,
The other end B2 of the band is pulled up and the band B is gradually strained. When the holding metal fitting 2 is subsequently rotated, the other end B2 of the band folded back at the free end side of the locking lever 4 is pressed against the cut-raised piece 12 and the cut-raised piece 12 and the free end of the locking lever 4. The other end B2 of the band is firmly fixed in a state of being sandwiched between
The convex portion 12 of the main body fitting 1 is engaged with and is held in the closed state as shown in FIGS. 1 and 3.

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

[0014]

As described above, the band tightening tool according to the present invention comprises the body fitting 1, the holding fitting 2 whose one end is openably and closably connected to the body fitting 1 by the connecting shaft 3, and the holding fitting 2 thereof. Is provided with a band locking lever 4 rotatably connected at one end by a support shaft 5, one end B1 of the band B is hooked in a band hooking hole 11 formed in the body fitting 1, and the other end B2 of the band B is
In the state in which the locking lever 4 is folded back at the free end side, the band B is tensioned by closing the pressing metal fitting 2 with respect to the main metal fitting 1, and the band B is folded back at the free end side. Connect the other end B2 of the band to the body fitting 1
Since the cut-and-raised piece 12 formed in the above is pressed and the other end B2 of the band is sandwiched between the cut-and-raised piece 12 and the free end of the locking lever 4, the band B is tensioned. It can be tightened and fixed easily and securely in the closed state.
Further, since it is not necessary to use a complicated mechanism such as the conventional band winding shaft or ratchet mechanism, the structure is simple, the mass production is easy and inexpensive, and the flat and thin structure can be achieved. Also when used for the above, there is an advantage that the band tightening tool does not greatly protrude to the outside of the peripheral surface of the electric pole or the like and becomes an obstacle unlike the conventional case.

[Brief description of drawings]

FIG. 1 is a cross-sectional plan view showing one embodiment of a band fastener according to the present invention.

FIG. 2 is a partially cutaway front view of the band fastener.

FIG. 3 is a sectional view taken along line AA in FIG. 1;

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

[Explanation of symbols]

 1 Main body metal fitting 2 Holding metal fitting 3 Connection shaft 4 Band locking lever 11 Band locking hole 12 Cut and raised piece B Band P Utility pole

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshinori Sugimura 4-2-4 Kachidoki, Chuo-ku, Tokyo Suda Manufacturing Co., Ltd. (72) Inventor Yasuji Ohashi 4-2-4 Kachidoki, Chuo-ku, Tokyo Stock company Suda Works (72) Inventor Takeyuki Suzuki, 4-2, Kachidoki, Chuo-ku, Tokyo Inside Suda Manufacturing Co., Ltd. (72) Mitsuru Shimozawa, 4-4-2, Katsudoki, Chuo-ku, Tokyo Inside Suda Manufacturing, Inc. (72) Inventor Pan Nagai, 4-2-4, Kachidoki, Chuo-ku, Tokyo (56) References at Suda Manufacturing Co., Ltd. (56) References Showa Sho 60-154604 (JP, U) Showa 1-73507 (JP, U) Actual Kaihei 5-96515 (JP, U) Actual public Sho 54-17029 (JP, Y2) Actual public Sho 40-40757 (JP, Y2)

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 locking lever whose one end is pivotally connected to the holding fitting. With one end of the band hooked in the band locking hole formed in the body metal fitting, and the other end of the band folded back at the free end side of the locking lever, the pressing metal fitting is closed with respect to the body metal fitting. While tensioning the band, the other end of the band folded back on the free end side of the locking lever is pressed against the cut-and-raised piece formed on the main body metal fitting to form the cut-and-raised piece and the free end of the locking lever. A band tightening tool characterized in that the other end of the band is sandwiched between the two.