JPS621442Y2 - - Google Patents

Description

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

Tightening band devices are well known in which one end of a band made of stainless steel or the like is bent and hooked onto the main body of the winding device, the other end of the band is passed through a groove in a winding shaft provided on the main body, and the winding is tightened using a ratchet mechanism. It is.

When tightening the band, the free end of the band is hooked onto the groove of the winding shaft and wound into a spiral, which requires rotation many times. For this reason, it is efficient to pull the free end of the band through the groove, tighten it to some extent, and wind the band in a double-wound state, and this is how it is usually used.

However, when the band is long, its end protrudes without being caught around the winding shaft. You can remove it, but
For example, if the width of a stainless steel band is about 20 mm or more, it will be difficult to cut with pliers, and carrying metal cutting scissors will increase the number of tools and be troublesome. Passersby may be injured.

The purpose of this proposal is to solve the above-mentioned conventional problems.The band D is passed through the groove C of the winding shaft B of the ratchet winding mechanism A, and the ends of the band D are This is the one with buckles E and F attached.

With the above configuration, since there is no terminal in band D, the above-mentioned drawbacks are eliminated. Furthermore, even if the length of the band is too long, since the middle portion of the band is wound twice around the winding shaft B from both sides, the tightening work can be carried out quickly and efficiently.

The ratchet winding mechanism A is as follows.

1 is a main body having a U-shaped cross section, 11 is a winding shaft hole, 2 is a winding lever, 21 is a winding shaft hole, 3 is a winding shaft, 3
1 is the groove, 4 is the washer, 5 and 6 are the fasteners, 4
1, 51, and 61 are winding shaft holes provided in the washer 4 and the stops 5 and 6; 7 and 8 are ratchet engaging claws provided in the main body 1 and the lever 2; and 9 and 10 are provided in the stops 5 and 6. This is an engaging pawl (notch in the case of the figure) corresponding to the pawls 7 and 8 mentioned above.

When the above parts are assembled, the configuration shown in FIG. 4 will be obtained. That is, the winding shaft 3 is connected to the main body 1 and the shaft holes 11 and 21 of the lever 2.
The fasteners 5, 6 between the lever 2 and each side of the main body 1, and the washers 4, 4 on the outside of the lever 2
is the shaft hole 4 for the fork and two holes formed by the split groove 31 of the shaft 3.
1, 51, and 61 are integrally connected a to d. The engaging claws 7 and 9 of the main body 1 and the stopper 5 engage with each other, and the engaging claws 8 and 10 of the lever 2 and the stopper 6 engage with each other, respectively. In this case, both sides 12 and 13 of the U-shape of the main body 1 are elasticized outward, and both sides 22 and 23 of the U-shape of the lever are elasticized inward.

When the lever is opened and closed as shown by the arrows in FIG. 1, in the opening direction P, the engaging claws 7 and 9 engage to prevent the winding shaft 3 from returning. The engaging pawl 8 is tapered so that it is disengaged from the engaging pawl 10 to allow the lever 2 to rotate and stand up. In the closing direction Q, the engaging claws 8 and 10 engage to rotate the winding shaft 3, and the engaging claws 7 and 9 are disengaged in a tapered relationship to allow the shaft 3 to rotate, and the band D is wound up. When the winding is completed, the lever 2 is fully pushed down to engage the engagement claw 24 with the engagement recess 14 of the main body 1. 15
is a band holder provided on the main body 1.

As mentioned above, the winding feed ratchet claws 8, 10
Since the ratchet pawls 7 and 9 for detenting are separated into left and right mechanisms, it is more durable than the conventional ratchet plate provided on the front and back sides of a single ratchet plate.

One end of the winding shaft 3 may be formed with a turning head for turning with a suitable tool.

[Brief explanation of the drawing]

FIG. 1 is a front view of the present tightening band device, FIG. 2 is a front view of the hooks at both ends of the band, FIG. 3 is an exploded perspective view of the ratchet winding mechanism, and FIG. 4 is an explanatory view of the assembly. B and 3 are winding shafts, C and 31 are grooves, D is a band, and E and F are hook fittings.

Claims (1)

[Claims for Utility Model Registration] A main body 1 with a U-shaped cross section that abuts a column, and a winding shaft 3B passed through the shaft holes 11 and 21 of a winding lever 2 with a U-shaped cross section that covers the main body 1. and each opposing side 1 of the winding lever 2
The dividing groove 3 of the winding shaft 3B between 2, 22, 13, 23
1C, and between the winding lever side surface 23 and the stopper 6,
When the take-up lever 2 is turned in the closing direction Q, the take-up shaft 3
Using a ratchet winding mechanism, ratchet engaging claws 8, 10 are provided to transmit power to the winding shaft 3, and ratchet engaging claws 7, 9 are provided on the side surface 12 of the main body and the stopper 5 to prevent return rotation of the winding shaft 3. The band D passed through the slot 31 of the winding shaft 3 is wound around the column, its both ends are connected with the hooks E and F, and the middle part of the band D is double wrapped around the winding shaft 3 from both sides. A tightening band device configured to be wound up.