JPS5928773Y2 - belt tightener - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a ratchet type belt tightening device.

2. Description of the Related Art Conventionally, cargoes such as trucks have been tied together with belts, and various fasteners have been proposed for tightening the belts.

The present invention relates to a ratchet type fastener among these fasteners.

As shown in FIGS. 1 and 2, the ratchet type belt tightening tool consists of a reel 3 by attaching ratchet gears 2, 2 to both ends of half-split round bars 1, 1. The front ends of the side plates 5.5 of the main body 4 and the bases of the side plates 7, 7 of the lever 6 are rotatably fitted to both ends, and the main body 4 has elongated holes 8 in the side plates 5, 5. 8, and an engagement plate 10 having engagement claws 9, 9 on both side edges for engaging with the ratchet gears 2, 2 is provided slidably along the elongated holes 8, 8, and is supported by a spring 11. The engagement plate 10 is always biased in the direction of engagement with the ratchet gears 2, 2, a shaft 12 is fixed at the rear end of the main body between the side plates 5, and the lever 6 is also attached to the side plates 7, 7. An elongated hole 13.13 is bored, and an engagement plate 15 having engagement claws 14.14 on both side edges that engages with the ratchet gear 2.2 is provided to be slidable along the elongated holes 13, 13. A spring 16 constantly urges the engagement plate 15 in the direction of engagement with the ratchet gears 2, 2.

Then, the other end of the belt 17, whose one end is locked to a fixed object, is sewn to the shaft 12, and the other end of the other belt 18, whose one end is locked to a fixed object, is cut in half. Round bar 1
, 1 and wrap it around its outer circumference.

When the lever 6 is rotated counterclockwise in the figure, the engaging pawls 14 and 14 engage with the ratchet gears 2, 2, and the reel 3
rotates counterclockwise together with lever 6.

Next, when the lever 6 is rotated clockwise, the ratchet gears 2, 2 engage with the engaging pawl 9 of the main body 4, the rotation of the reel 3 is blocked, and only the lever 6 is rotated clockwise.

Therefore, if you repeatedly rotate the lever 6 back and forth,
The reel 3 intermittently rotates counterclockwise to tighten the belt 18.

The cam formed on the outer periphery of the base of the side plates 7, 7 of the lever 6 can be removed by rotating the lever 6 half a turn counterclockwise while putting your finger on the through hole 19 of the engagement plate 15 of the lever 6 and pulling it. The edge 20 is operated so as to push back the engagement plate 10 of the main body 4, the engagement claws 9, 9 are disengaged from the ratchet gears 2, 2, and the belt 18 can be untightened.

By the way, this type of fastener is used in a state in which it is in direct contact with the cargo of a truck or the like.

Therefore, if the cargo is flexible or made of a material that is easily damaged, the portion that the fastener comes into contact with will often be damaged.

Moreover, in this type of fastener, since the belt 18 is wound around and tightened, the entire fastener gradually moves to the left as the reel rotates.

Therefore, the cargo is not only damaged by coming into contact with the fasteners and being pressed down, but also severely damaged by being rubbed against the lower edge of the fasteners.

In view of these circumstances, the present invention has been developed by attaching a sliding plate to the lower part of the fastener, and using the sliding plate as a cushion to contact the cargo, the fastener can smoothly slide along the surface of the cargo, and the There is no risk of damage to the equipment.

In the drawing, 21 is a sliding plate.

The sliding plate 21 is molded from a plate made of polyethylene resin or the like having a small friction coefficient and spring elasticity.

The rear side edges of the iron plate are bent upward to wrap around the main body 4 to form side plates 22, 22.
, 22, and is integrally fixed to the main body 4.

Further, the front part of the sliding plate 21 is widened laterally, and a long hole 23 is bored in the center of the front end, and the belt 18 pulled out from the reel 3 extends through this long hole.

In the belt tightening tool Q of the present invention, a sliding plate 21 is provided at the bottom of the belt tightening tool Q, and this sliding plate 21 comes into contact with the cargo, and the metal part does not directly contact the cargo, so that the cargo never gets hurt.

Moreover, when the belt 18 is tightened, if the belt 18 becomes tense, the front end of the sliding plate 21 is pulled upward by the belt 18, forming a warped shape as shown in the drawing.

Therefore, even when the metal fitting moves to the left by tightening the belt 18, the sliding plate 21 slides smoothly on the surface of the cargo, and the front edge of the metal fitting or the sliding plate 21 does not get caught on the cargo or push the cargo loose. There is no friction.

Therefore, not only will the cargo not be damaged, but the entire fastener can be easily moved according to the tension of the belt 18, so there is no local tension unevenness on the bells N7 and 18, and the overall tension is uniform. This allows the cargo to be tightened.

Therefore, the belt tightening device of the present invention is suitable for use with cargoes that are easily damaged, such as flexible containers.

Further, in the present invention, the shape of the sliding plate 21 is not limited to the above-mentioned shape; for example, a notch is provided on both sides of the central portion, and both side edges behind the notch are bent and raised to form the side plate 22.
．． 22, and the front of the cut may be flat and flat.

[Brief explanation of the drawing]

FIG. 1 is a central vertical sectional view showing an embodiment of the present invention, and FIG. 2 is a perspective view thereof. 2... Ratchet gear, 3... Reel, 4... Body, 6... Lever 9,1
4... Engaging claw, 11° 16... Spring,
12...Shaft, 17.18...Belt, 21...Sliding plate, 22...Side plate, 23...Long hole.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A main body and a lever are rotatably fitted to both ends of a belt winding reel provided with ratchet gears at both ends, and the main body and lever are each fitted with a spring to connect to the aforementioned ratchet gear. An engaging pawl is provided that is biased in the engaging direction, and by repeatedly rotating the lever back and forth with respect to the main body, the pawl of the lever engages with the ratchet gear and winds the belt around the reel, and the pawl of the main body prevents rotation of the ratchet gear in the belt pulling direction, and a belt other than the belt is sewn to the shaft provided at the end of the main body, and a spring elasticity is attached to the underside of the main body. A sliding plate is attached thereto, and both edges of the rear part of the sliding plate are bent upward to be fixed to the end of the shaft, and a long hole is bored in the front end so that the belt unwound from the reel can be attached to the shaft. A belt fastener characterized by being inserted into a long hole. 2. The belt tightening tool according to claim 1, wherein the sliding plate is made of polyethylene resin.