JPH0249365Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a tightening device for a band for a utility pole.

Conventional technology A tightening lever and a support stand are combined, circular holes provided in both side plates are aligned with each other, a ratchet plate is sandwiched between each side plate, a leg piece is provided on the rotating frame, and the leg piece is attached to a washer. , through the circular hole of the tightening lever and the support base, and the through hole of the ratchet plate, and make the tip of the leg protrude to the opposite side.
A tightening device in which another washer is fitted and assembled is known, for example, as described in Japanese Utility Model Publication No. 19476/1983.

Problems to be Solved by the Invention In the conventional tightening device, the locking claws for locking the ratchet plate are attached to one side plate of the support base and one side plate of the tightening lever opposite to the side plate. The rotation direction is the same, and one side is used as a locking pawl for rotation and the other side is used as a locking pawl for rotation, so when operating the tightening lever and tightening the band with the rotation frame, the rotation Since rotational force is transmitted to the rotating frame only from one end of the rotating frame (the locking claw side of the tightening lever), if the rotating frame is tightened too tightly, the rotating force will not work evenly across the entire rotating frame, which may cause the rotating frame to twist. This causes problems and impairs the interlocking functions of various parts of the tightening mechanism, making it impossible to obtain strong tightening force.

Means for Solving the Problems The present invention avoids the above-mentioned drawbacks of the conventional method by providing locking pawls on a pair of side plates of the tightening lever and the support base that rotate in the same direction and lock onto the ratchet plate. It is something to do.

Embodiment The drawing shows an embodiment of the utility pole band tightening device according to the present invention, A is a tightening device, and the tightening device A includes a rotation frame 1, a tightening lever 2, two ratchet plates 3, 3', and It is constructed by combining support stands 4 with each other.

The rotating frame 1 is made by bending a metal piece from the center into a substantially U-shape, aligning a pair of leg pieces 11 and 11' in parallel, and forming a gap 12 between the leg pieces 11 and 11' through which the tip of the band B is inserted. It is something.

The tightening lever 2 connects a pair of side plates 21 and 21' with a base side continuous piece 22 and a tip side continuous piece 23,
Circular holes 24, 24' are provided at the base sides of the side plates 21, 21', in which the rotating frame 1 can fit and rotate freely, and ratchet plates 3, The locking pawls 25, 25' for locking the base side continuous piece 22 are provided facing each other in the same rotation direction, and the distal side continuous piece 23 side of the base side continuous piece 22 is bulged to form both continuous pieces. Insertion hole 2 for tool a between 22 and 23
6, and engaging protrusions 27, 27' are provided oppositely on the inner surfaces of the front ends of the side plates 21, 21'.

The ratchet plates 3, 3' are sandwiched between the tightening lever 2 and the support base 4, and have through holes 3 in the center through which the leg pieces 11, 11' of the rotating frame 1 are inserted separately.
1, 31' are arranged in parallel, and a plurality of notches 32, in which the locking claws 25, 25' provided on the tightening lever 2 or the locking claws 45, 45' provided on the support base 4 engage with the locking claws 25, 25' on the peripheral edge. 32' is provided.

The support stand 4 is constructed by bending both sides of a center piece 42 and attaching a rotating frame 1 to the base of a pair of opposing side plates 41, 41'.
are provided with circular holes 44, 44' into which they fit and rotate freely, and the locking claws 45, which lock the ratchet plates 3, 3' on the outside of the periphery of the circular holes 44, 44'.
45' are provided facing each other and facing the same rotation direction,
The locking claws 45, 45' are rotated in the same direction as the locking claws 25, 25' of the tightening lever 2, and
The locking claws 25, 25' are provided so as to be always displaced from each other, and on the tip side of the side plates 42, 42',
It consists of opposing locking claws 47, 47' into which engaging protrusions 27, 27' provided on the tightening lever 2 are fitted.

Thus, by combining the tightening lever 2 and the support base 4, both circular holes 24, 24' and 44, 4 are assembled.
4' are aligned with each other, and the ratchet plates 3, 3' are sandwiched between the side plates 21, 21' and 41, 41', and the leg pieces 11, 11' are attached to the rotating frame 1 with the washer 5.
into the through holes 54, 54 of the tightening lever 2 and the circular holes 24, 24', 44, 4 of the support base 4.
4' and the through holes 31, 31' of the ratchet plate 3, the ends of the leg pieces 11, 11' protrude to the opposite side, and the leg pieces 11, 11' are fitted into the through holes 54', 54' of the washer 5'. The tightening device A is constructed by bending the tip so that it does not fall out.

In addition, illustration C shows a utility pole.

After locking one end of the band B to the center piece 42 of the support stand 4 and winding the tip around a utility pole, the band B is inserted into the gap 12 between the leg pieces 11 and 11' of the rotating frame 1, and then After that, when the tightening lever 2 is rotated forward, the locking claws 25, 25' provided opposite to the inner surfaces of the base side of the side plates 21, 21' of the tightening lever 2 engage the notches of the two ratchet plates 3, 3', respectively. 32, 32 to rotate the ratchet plates 3, 3'. By rotating the ratchet plates 3 and 3', the through holes 31 and 31' formed in the two ratchet plates, respectively, are opened.
31, 31', the leg piece 11 of the rotating frame 1,
The rotating frame 1 rotates via the opening 11', and the band B inserted through the gap 12 is wound around the rotating frame 1.

Furthermore, when the tightening lever is returned to the opposite side, the ratchet plates 3, 3' are removed from the notches 32 and 3' of the ratchet plates.
32 and engaging claws 45, 45' provided oppositely on the outside of the bases of the side plates 41, 41' of the support base 4, rotation is prevented, and the through holes 31 of the ratchet plates 3, 3' are prevented from rotating. , 31', 31, 31' have leg pieces 11, 11'
The rotating frame 1 through which it has been inserted is similarly prevented from rotating, and only the tightening lever rotates in the opposite direction while both remain stopped. Therefore, by reciprocating the tightening lever, the band B is tightened and tightened each time.

Effects of the invention Since the present invention has the above-described structure, when the tightening lever is rotated to tighten the band, the leg pieces of the rotating frame for winding the band pass through the ratchet plates located on both sides of the tightening lever. Because rotational force is transmitted,
An even rotational force acts on the entire leg piece, so there is no risk of twisting the rotation frame, and a strong and stable tightening force can be exerted.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a plan view showing the state of use, FIG. 2 is a sectional view thereof, FIG. 3 is an exploded perspective view, and FIG. 4 is an enlarged exploded perspective view of the main parts of the ratchet mechanism. Figure 5 is a plan view of the ratchet plate;
Figure 6 is a front view of the support stand, Figure 7 is a plan view, Figure 8 is a
The figure is a partial sectional view of the ratchet mechanism. 1... Rotating frame, 2... Tightening lever, 3, 3'
... Ratchet plate, 4 ... Support stand, 11, 11'
... Leg piece of rotating frame, 24, 24' ... Circular hole, 2
5, 25'...Latching claw, 31, 31'...Through hole, 4
4, 44'... circular hole, 45, 45'... locking claw.

Claims (1)

[Scope of utility model registration request] Assemble the tightening lever and the support base, align the circular holes provided in both side plates with each other, sandwich the ratchet plate between each side plate, provide a leg piece on the rotating frame, and insert the leg piece into the through hole of the washer. , insert it through the circular hole of the tightening lever and the support base, and the through hole of the ratchet plate, and let the tip of the leg protrude to the opposite side,
In a utility pole band tightener that is assembled by fitting another washer thereto, a pair of side plates of the tightening lever and the support stand each have locking claws that rotate in the same direction and lock onto the ratchet plate. Tightener for bands for protruding utility poles.