JPS61105394A - Bonding band - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a worm screw type tying band. Specifically, the present invention relates to a tying band that is most suitable for tightening hoses, etc., and particularly relates to a flexible metal band. A worm screw, which is pivotally supported in a ring attached to one end, is engaged with the horizontal thread formed in the band, and the worm screw is rotated, and the end portion is fixed inside the band. The present invention relates to a fastening band configured to fasten an object such as a hose with a fastening band having a guide formed at a free end and having a shape that moves on the inner circumferential surface of the band.

Conventional technology The conventional wormwood acid bonding band
No. 27, Japanese Patent Publication No. 58-53234, U.S. Patent No. 239
No. 5273 and U.S. Pat. No. 3,950,830, this technique is disclosed in the specifications of No. 5273 and US Pat. No. 3,950,830. The purpose is to prevent damage to the surface of the object such as, or the housing installation method including the above technology and the means for disassociating the band and 71 unong, and in the case of a so-called one-touch method of connection band other than worm screw type connection. This is intended to be compensated for by the metal grate member at the stepped portion that occurs when the band member (band) is fastened.

Problems to be Solved by the Invention This invention aims to prevent damage to the surface of an object due to contact with the surface of the object due to cross-grain threads formed in the band, which occurs in worm screw type coupling bands. First, it is an object of the present invention to provide a fastening band that makes the tension force in the radial direction uniform when the band is tightened.

Means for Solving the Problems The basic aspect of the present invention will be explained below with reference to FIGS. 1 and 2.

Reference numeral 1 in the drawings denotes a housing, which is fixed to the end of the band 2 via legs 3. Although not particularly shown in the drawings, a worm screw rod 4 having a worm screw is attached inside the housing 1. The band 2 is curved in a circular shape, and its free end passes through the housing 1 and extends outward. At this time, the above-mentioned worm screw is engaged with a transverse thread (not shown) formed in the shape of a cut hole over a predetermined width on the free end side of the band 2.

Therefore, the band 2 moves forward and backward in response to the rotation of the worm screw rod 4, and as a result, the circular diameter of the band contracts and expands.

Reference numeral 5 denotes a tension band, one end 6 of which is fixed to the inside of the band 2 in the vicinity of passing through the mounting foot 3 of the housing, and the other free end is provided with a guide guided to the side edge of the band 2. 7 is provided, and the tensioning band 5 itself has the above-mentioned 11+义→--・-- The present invention produces the following effect on the above structure on the inner circumferential surface of the band 2.

Particularly, as shown in Fig. 2, after inserting an object such as a hose (not shown) into the circular space formed by the tension band 5 and the work band 2, rotate the worm screw rod 4. Then, the band 2 extends in the direction of arrow A (clockwise) and the diameter of the circular shape is reduced, and as the diameter of the band 2 is reduced, the tension band 5 is reduced in diameter in the direction of arrow B (counterclockwise). As a result, the object within the circular space described above is tightened over its entire circumference. Note that the tension band 5 does not shift laterally due to the guide 7.

Embodiment FIG. 3 is a cross-sectional explanatory diagram of a main part showing an embodiment of the present invention, and all reference numerals in the drawings that are the same as those in FIG. 1 and FIG. It is something.

As is clear from the figure, the thread 41 of the worm threaded rod 4 in the unong 1 is the horizontal thread 2 carved in the band 2.
1, and as the threaded rod 4 is rotated, the diameter of the band 2 is reduced in the direction of the arrow A, and along with this, an end 6 is formed in the shape of a funeral ring by spot welding or the like on the inner surface of the band 2. The inner peripheral surface of the band 2 and the hose 8 are fixed together.
The hose 8 slides in the direction of arrow B while making sliding contact with the outer peripheral surface of the hose 8.
Reduce the diameter. Note that 9 indicates a tube.

Although the shape of the tensioning band 5 may be a flat plate, the fourth figure is a perspective view of the tensioning band 5.

Effects of the invention The effects of this invention can be summarized as follows.

(1) In conventional worm screw type coupling bands, the horizontal thread formed on the band and the hose (object to be tightened) come into direct contact, damaging the hose and requiring force to tighten it. In this invention, since there is a frictional contact with the flat tensioning band 5 without a cross thread, the hose metal is not damaged and tightening becomes easy.

(2) The decrease in strength of the band 2 caused by the cross-grain thread can be compensated for by arbitrarily designing the shape of the band 2, and as a result, the desired tension force can be applied by the tensioning band 5.

(3) Step space near both ends of the housing (Fig. 3 CX
C) is closed by the tensioning band 5 when the hose is tightened, so that a uniform tensioning force can be obtained over the entire circumference of the hose.

(4) The guide 7 of the tensioning band 5 prevents lateral deviation t''L from occurring when the hose is tightened, and a uniform tensioning force over the entire circumference of the hose is reliably compensated for. When the fastening band is left attached, it can also function as a stopper for fixing the free end of the band 2.

Another Embodiment An embodiment of the pond of this invention is shown in FIG. In this embodiment, the present invention is applied to a so-called one-punch type coupling band, and the reference numerals in the figure represent members with the same functions as those in the previous embodiment.

In the case of this type of coupling band, the lever 1', the diagonal band 2', and the lever 1' are bent at the base edge 11' to apply a predetermined tightening force to a hose of a predetermined diameter. .

Note that 10 is a stopper for preventing the lever 1' from restoring after bending. In this type of section, one end 6 of the tensioning band 5 is fixed to the inner surface of the bent side of the band 2', and a guide 7t at the other end is guided to the side edge of the band 2'. FIG. 7 is an explanatory diagram of the guide 7 and the case where it also functions as a regular metal fitting for preventing duplication.

In the case of this embodiment, the stepped space C is closed behind the tension band 5, and because the tension band has a length that is almost sufficient to form a circular shape, the tension force on the hose is directed toward the center of the hose. It acts as a uniform concentration force.

Furthermore, if the band 5 is tightened to such an extent that the stopper 7 of the tension band 5 functions as a stopper for preventing the lever 1' from restoring, the tightening action on the hose can be achieved by the two forces of the band 2' and the tension band 5. Since it is done with a book, the strength increases and uniform and firm tightening can be achieved.

Furthermore, as another embodiment of the present invention, as shown in FIG. 8, a more uniform tensioning force can be obtained by increasing the thickness of the tensioning bunt 5 at the step-equivalent portion t2 and other portions. That is, the conventional coupling band described above has a step space C, and since a large load acts on this portion 5+, there are many variations in the tension force.

By increasing the total thickness of the tensioning band 5 corresponding to this stepped portion, for example, the thickness of the tensioning band 5 can be increased. A more effective and uniform tensioning force can be obtained by decreasing the tension force sequentially toward the guide portion.

FIG. 9 shows a strain distribution diagram of a fastening band applied to the worm screw type according to the present invention and a conventional worm screw bonding band, which shows that the tension force of the fastening band of the present invention is uniform. clearly expressed.

The measurement method is as follows:
The strain gauge was inserted into a measuring tool with strain gauges pasted at 8 locations, and the strain was measured when the screw was tightened with a torque of 45 kg-crrL.

[Brief explanation of the drawing]

Figures 1 and 2 are basic explanatory diagrams of this invention. Figure 1 shows the front tightening, Figure 2 shows the rear tightening, and Figure 3 is a cross-section of the main parts showing all the embodiments of the invention. Figure 4 is another embodiment of the V'i tensioning band, Figure 5 is a perspective explanatory view of the tension band, Figure 6 is an explanatory diagram showing the construction, and Figure 7 is an explanatory diagram showing another embodiment of the present invention. And the 6th
In the figure (a), tightening is at the front, (1)) is tightening at the rear, Fig. 7 is an explanatory diagram of the main part when the guide is also used as a stopper for preventing the lever from restoring, and Fig. 8 The figure is an explanatory diagram of a tensioning band which is an implementation of the present invention, FIG.
b) represents a non-exploded or a clean product. The symbols in the drawings are: 2 (2'): Band 5: Tightening band 6: Fixed end of the tensioning band 7: Fastener 10 Fastener for preventing restoration of Nillever r: Curvature. Patent applicant: Shoho Kogyo Co., Ltd. and one other patent attorney: Sada Inuzuka
Fig. 2 4 T-muneshi 1 piece and *arm ≧ Fig. 3 (a) (b > Fig. 9

Claims (1)

[Scope of Claims] 1 A circular band made of connected band-like members is formed to tighten an object in the circular space, and one end is attached to the inner surface of one end of the band-like member. A tensioning band that is fixedly fixed and guided by the band member through the other end or a guide provided near the other end is attached to the inner periphery of the band in an overlapping manner. A fastening band characterized in that an object fastened over almost the entire circumference of the object is fastened with uniform tension. 2. A fastening band characterized in that the tensioning band described in item 1 has a plate thickness that is thicker in a portion corresponding to a step of the tensioning band than in other portions. 3. A tightening band, characterized in that the guide described in item 1 also functions as a stop for preventing the free end of the band or the tightening lever from restoring.