JPH0571413U - Tightening band - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a tightening band capable of easily winding and tightening an object to be fastened even after the object to be fastened such as a hose is connected to a pipe or the like. [Structure] A belt-shaped member 12 having a locking hole 14 formed at one end, and when the belt-shaped member 12 is formed into a ring-shaped member,
A convex portion 24a that enters from the outside of the locking hole 14 and fits is formed at the other end, and the convex portion 24a can be pivotally operated in a direction to reduce the diameter of the ring-shaped body with the convex portion 24a as a fulcrum. As described above, the tightening band 10 is composed of the lever 24 fixed to one surface of the other end of the belt-shaped member 12 with the midway surface or one end surface thereof, and the convex band formed at the other end of the lever 24. Part 2
4a is bent in the direction of the belt-shaped member 12.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tightening band, and more particularly to a tightening band for tightening and connecting a connecting portion between a hose or the like such as a gas hose or an automobile boot and a pipe or the like.

[0002]

[Prior Art]

 A one-touch type metal tightening band proposed in Japanese Examined Patent Publication No. 50-14702 is used as a tightening band for tightening a connecting part of a hose such as a gas hose or an automobile boot to connect to a predetermined device. ing. This tightening band is shown in FIG. In the tightening band 2 shown in FIG. 5, the belt-like body 4 is formed into a ring shape, and the lever 5 is integrally fixed to the palm part 3 where both ends are overlapped, and the lever-like lever 4 reduces the diameter of the belt-like body 4. At this time, it is constituted by a stopper 6 for fixing the tip of the lever 5 on the strip 4. When connecting an object to be fastened such as a hose to the pipe using the tightening band 2, after connecting the object to be fastened such as a hose into which the tightening band 2 is inserted to the pipe, etc., connecting the object to be fastened Move the tightening band 2 to the part. Next, when the lever 5 is rotated in the direction of the arrow with the tip of the lever 5 as the force point and the end of the lever 5 in contact with the belt-shaped body 4 as a fulcrum, the palm-shaped component 3 acts as the point of action and the ring-shaped belt-shaped body 4 contracts. The diameter is used to tighten the object to be fastened. Furthermore, the tip of the lever 5 to which the object to be fastened is fastened can be fixed by the stopper 6 to maintain the fastened state. Further, the separation type tightening band shown in FIG. 6 is also used. This tightening band is formed into a ring shape by overlapping both ends of the band-shaped body 7, and ears 8 are provided on the outer peripheral portion 7 a of the band-shaped body 7 so as to project in a gate shape in the outer peripheral direction. The ears 8 are clamping means for reducing the diameter of the ring-shaped strip 7 when crushed.

[0003]

[Problems to be solved by the device]

 The tightening band 2 shown in FIG. 5 can be tightened easily and quickly. However, with the object to be fastened connected to a pipe or the like, it is not possible to freely insert and remove the tightening band 2 in which the band-shaped body 4 has a ring shape into and from the object to be fastened. For this reason, when using the tightening band 2 to connect an object to be fastened such as a hose to a pipe, it is necessary to insert the tightening band 2 into the object to be fastened before connection. Work procedures are limited. Further, when the tightening band 2 needs to be replaced at the time of repair or repair, the tightening band 2 cannot be replaced unless the object to be fastened is disconnected from the pipe, etc. The work becomes complicated. In addition, the fastening band 2 cannot be replaced if the fastening object cannot be disconnected from the pipe or the like.

Further, since the separation type tightening band shown in FIG. 6 can be wound around the connection part of the object to be fastened even after the object to be fastened and the pipe are connected, the tightening band shown in FIG. The drawbacks of band 2 can be eliminated. However, since the crushed ear 8 is accompanied by the springback phenomenon in the direction of the arrow shown in FIG. 6, it was difficult to make the band-shaped body 7 retain a strong tightening force. Therefore, an object of the present invention is to provide a tightening band that can be easily wound around and tightened on an object to be fastened even after the object to be fastened such as a hose is connected to a pipe or the like.

[0005]

[Means for Solving the Problems]

 As a result of repeated studies to achieve the above-mentioned object, the present inventor has provided a locking hole at one end of the belt-shaped member and, when the belt-shaped member is formed into a ring-shaped member, is inserted into the locking hole. A lever having a fitting convex portion formed at one end is provided at the other end of the belt-shaped member, and by bending the convex portion, it is possible to easily wind / tighten an object to be fastened connected to a pipe or the like. The inventors have found that they can be carried out and can hold a strong tightening force, and have reached the present invention. That is, according to the present invention, there is provided a strip-shaped member having a locking hole formed at one end, and a convex portion which enters and fits from the outside of the locking hole when the band-shaped member is a ring-shaped member. The intermediate surface or the one end surface is formed at one end so that it can be rotated about the convex portion as a fulcrum in a direction to reduce the diameter of the ring-shaped member. A tightening band composed of a lever fixed to one surface, wherein a convex portion formed at one end of the lever is bent in the direction of the belt-shaped member. In the present invention, the belt-shaped member has a protruding hole formed at one end of the belt-shaped member and an opening hole facing the other end of the belt-shaped member. The tightening force of can be increased.

[0006]

[Action]

 According to the present invention, when the belt-shaped member is formed into a ring-shaped body, the convex portion formed at the other end of the lever is inserted into and fitted into the locking hole formed at the one end of the belt-shaped member. At this time, since the convex portion is bent in the direction of the belt-shaped member, the convex portion can easily enter the locking hole even if the inclination angle of the lever with respect to the belt-shaped member is large. Can be easily wrapped around the object to be fastened. Further, the lever protruding from the band-shaped member wound around the object to be fastened can be rotated in the direction in which the diameter of the band-shaped member is reduced. Therefore, it is possible to easily wind and tighten the tightening band around the object to be fastened which is previously connected to the pipe or the like.

[0007]

【Example】

 The present invention will be further described with reference to the drawings. 1 (a) and 1 (b) are a partial cross-sectional side view and a partial plan view in which a tightening band according to the present invention is developed and partially omitted. The tightening band 10 according to the present embodiment is a band-shaped member 12 that is a band-shaped metal plate having a locking hole 14 formed at one end, and the intermediate surface is fixed to one end of the band-shaped member 12 by spot welding or the like. And a stopper 16 for fixing one end of the lever 24 rotated so as to reduce the diameter of the belt-shaped member 12 in the form of a ring. In this embodiment, the locking hole 14 provided at one end of the belt-shaped member 12 is an opening facing the other end where the lever 24 is fixed to the projection 22 formed at one end of the belt-shaped member 12. It is a projecting locking hole (hereinafter, simply referred to as locking hole 14) provided with the hole 22a.

Further, a convex portion 24 a is formed at one end of a portion of the lever 24 which overlaps with the belt-shaped member 12, and the convex portion 24 is bent toward the belt-shaped member 12. The bending angle θ of the convex portion 24a is preferably 145 ° or less, and particularly preferably 125 ° to 145 °. When the bending angle θ exceeds 145 °, it tends to be difficult for the convex portion 24 to enter the locking hole 14 formed at one end of the belt-shaped member 12. In this example, the bending angle θ was set to about 135 °. Further, a stopper 16 bent in a U-shaped side face is fixed near the locking hole 14 formed at one end of the belt-shaped member 12 so as to straddle the belt-shaped member 12 and open at both ends outward. ing.

When the band-shaped member 12 of the tightening band 10 shown in FIG. 1 is a ring-shaped body 20 as shown in FIG. 2, the opening hole 22 a formed in the protrusion 22 of the locking hole 14 is formed. The protrusion 24 a formed on the lever 24 enters from the outside and fits into the locking hole 14. At this time, in this embodiment, since the convex portion 24a is bent, the angle (tilt angle) Φ between the belt-shaped member 12 and the upright portion of the lever 24 is compared with that when the convex portion 24a is not bent. The protrusion 24a can be easily inserted and fitted into the locking hole 14a. Therefore, after connecting an object to be fastened such as a hose to a pipe or the like, a winding work for winding the band-shaped member 12 around the connecting portion of the object to be fastened and inserting and fitting the convex portion 24a into the locking hole 14 is facilitated. It can be carried out. Further, the once-fitted convex portion 24a does not easily come out of the locking hole 14. Next, the protrusion 24a fitted into the locking hole 14 is used as a fulcrum, and the rising portion of the lever 24 is rotated in the direction of the arrow in FIG. The diameter of the body 20 is reduced. In this embodiment, since the end of the upright portion of the lever 24 rotated until it abuts on the belt-shaped member 12 is located between the both upright pieces of the stopper 16, the upright piece of the stopper 16 is a hammer or the like. The end of the rising portion of the lever 24 is fixed by hitting and pushing down. Therefore, the ring-shaped body 20 can be kept in a reduced diameter state.

FIG. 3 shows a state in which the tightening band 10 of the present embodiment is wrapped around an object to be fastened such as a hose, the standing portion of the lever 24 is rotated, and the end portion of the standing portion is fixed to the stopper 16. .. The strip-shaped member 12 shown in FIG. 3 is wound around the hose 30 connected to the pipe 32, and then the upright portion of the lever 24 is rotated around the protrusion 24a fitted in the locking hole 14 as a fulcrum (FIG. 2). The tip of the part is fixed to the stopper 16. In this embodiment, since the protruding portion 22 forming the locking hole 14 is tightened by the band-shaped member 12, the tightening band 10 of the present embodiment has a larger thickness than the tightening band having the flat locking hole. The tightening force on the hose 30 can be increased.

By the way, in the tightening band 10 described with reference to FIGS. 1 and 2, when the ring-shaped body 20 is formed, the vicinity of both ends of the belt-shaped member 12 overlap each other, so that the inner surface of the ring-shaped body 20 is A step is formed by the end of the belt-shaped member 12. The larger the step, the more uneven the tightening force for tightening the object to be fastened, which may cause deterioration of the sealing property. Therefore, the band-shaped member 12 can be thinned in order to reduce the step as much as possible and average the tightening force for tightening the object to be fastened. However, when the thickness of the belt-shaped member 12 is reduced, the strength of the locking hole 14 formed at one end of the belt-shaped member 12 decreases, so that the convex portion 24a that has entered / fitted into the locking hole 14 serves as a fulcrum. When the upright portion of the lever 24 is rotated, the locking hole 14 may be deformed or cracked. When such a deformation or crack of the locking hole 14 occurs, the tension applied to the belt-shaped member 12 due to the rotation of the upright portion of the lever 24 decreases, and the tightening force for tightening the object to be fastened decreases. become. In order to prevent the deformation of the locking hole 14 and to reduce the thickness of the belt-shaped member 12 at the same time, as shown in FIG. 4, the locking hole 14 formed in another metal plate is provided at a predetermined position of the belt-shaped member 12. Can be achieved by sticking to.

[0012]

[Effect of the device]

 According to the present invention, even after the object to be fastened such as a hose and the pipe are joined, the tightening band can be easily wound and tightened, and the connection work procedure between the object to be fastened and the pipe can be freely performed. The degree can be secured. Further, even when the tightening band needs to be replaced at the time of repair or repair, it can be replaced without disconnecting the object to be fastened from the pipe or the like, and the replacement work can be easily performed.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional side view and a partial plan view in which a tightening band according to the present invention is expanded and partially omitted.

FIG. 2 is a side view showing the tightening band 10 shown in FIG. 1 in the form of a ring.

3 is a partial cross-sectional view showing a state in which the tightening band 10 shown in FIG. 1 is attached to a hose 30 connected to a pipe 32. FIG.

FIG. 4 is a partial cross-sectional view showing another embodiment.

FIG. 5 is a side view showing a conventional tightening band.

FIG. 6 is a side view showing a conventional tightening band.

[Explanation of symbols]

 10 Tightening Band 12 Belt-shaped Member 14 Locking Hole 16 Stopper 22 Projection 22a Opening Hole 24 Lever 24a Projection

Claims (2)

[Scope of utility model registration request] 1. A belt-shaped member having a locking hole formed at one end thereof, and when the belt-shaped member is formed into a ring-shaped member, a convex portion which is fitted into the locking hole from the outside and is fitted into the belt-shaped member is one end. In addition, the midway surface or one end surface is fixed to the other end of the belt-shaped member so that the ring-shaped body can be rotated about the convex portion as a fulcrum in a direction of reducing the diameter of the ring-shaped member. And a protrusion formed at one end of the lever is bent in the direction of the belt-shaped member. 2. The fastening according to claim 1, wherein the locking hole is a projecting locking hole in which a projecting portion formed at one end of the belt-shaped member is provided with an opening hole facing the other end of the belt-shaped member. Attached band.