JPH0510892U - Tightening band - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention has tightening ears, and when wound around an object to be fastened, the engaging relationship of the band member does not come off, a strong tightening force is obtained, and the tightening diameter is constant. The purpose is to provide a tightening band that is [Structure] Overlapping portion 14 of metal band member 12
A fastening ear 16 that is bent outward in a gate shape is formed in the middle of the outer band portion 12A of the outer band portion 12A, and the through hole 3 is formed in the outer band portion 12A.
1 is provided, and the anti-tightening ear 16 of this through hole 31 is provided.
A claw piece 33 extending inward from the side edge portion is provided. On the other hand, a convex portion 29 protruding in the outer diameter direction is formed on the outer peripheral surface of the inner band member 12B, and when the convex portion 29 is fitted into the through hole 31, the claw piece 33 of the through hole 31 should enter. , The locking body 3 having an opening 28a that opens in the circumferential direction
0 is formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tightening band for tightening an object to be fastened at a connecting portion such as an automobile boot.

[0002]

[Prior Art]

 FIG. 7 is a view showing a conventional tightening band. In the tightening band 1, a metal band member 2 is formed in a ring shape, and both ends thereof are overlapped with each other, and a gate-shaped tightening ear 3 protruding outward is formed at one end 2a located outside the overlapping portion. Has been done. This tightening ear 3 is a well-known diameter reducing means called a stiff Oetiker ear. Further, holes 4 ... Are drilled at the front end of the tightening ear 3. On the other hand, the other end 2b of the band member 2 penetrates into the inside of the one end 2a and overlaps when the band member 2 is wound around the object to be fastened, and engages with the hole 4 of the one end 2a. Molded by cutting and raising the claws 5 ... In this tightening band 1, the band member 2 is wound around an object to be fastened, the engaging claws 5 ... Are fitted into the holes 4 ... of the one end 2a, and the tightening ear 3 is crushed to reduce the diameter of the band part 2. Then, the object to be fastened is tightened.

[0003]

[Problems to be solved by the device]

 However, when the tightening ears 3 are crushed with a tool such as pliers and the tightening ears 3 are crushed and tightened excessively when the tightening ears 3 are crushed with a tool such as pliers, the engaging claws 5 are deformed such that the engaging claws 5 warp in the tightening direction and the tightening diameter becomes smaller. Variations occur. Further, the engaging claw 5 may be broken. For this reason, the conventional tightening band does not provide a strong tightening force, and when the band member 2 is wound around the object to be fastened, the holes 4 ... It is easy to come off. Therefore, the present invention provides a tightening band having a tightening ear, a strong tightening force is obtained without the engagement of the band member being disengaged when wound around an object to be fastened, and the tightening diameter is constant. The purpose is to

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention has the following configuration. That is, a metal band member is formed into a ring shape so that both ends overlap each other over a predetermined range, and an engaging portion for engaging the tip end side of the outer band portion of the overlapping portion with the inner band portion is provided. Outer band of the mating part In a tightening band provided with a clamping ear that folds outward in the middle in a portal shape, a through hole is formed in the outer band part of the overlapping part of the band member and the through hole is formed. Of the inner side of the inner band member is provided with a projection protruding in the outer diameter direction, and the projection is formed in the through hole. It is characterized in that a locking body having an opening that opens in the circumferential direction is formed so that the claw piece of the through hole can enter when it is fitted to. Further, a hole or a convex portion is provided on the pawl piece so that the pawl piece engages when the pawl piece enters the opening of the locking body, while the convex portion or the hole which engages with the hole or the convex portion of the pawl piece is formed. It may be provided on the locking body.

[0005]

[Action]

 The operation will be described. When the locking body of the inner band is fitted into the through hole of the outer band, a force that expands the overlapping part is applied, and the claw piece enters the opening of the locking claw, The inner band will not come off. Further, when the hole or the convex portion of the claw piece and the convex portion or the hole of the locking body are fitted to each other, the outer band portion and the inner band portion are more difficult to separate from each other.

[0006]

【Example】

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a side view of the tightening band. The tightening band 10 shown in the drawing is formed in a ring shape so that both end sides of a band member 12 made of metal are overlapped with each other over a predetermined range of overlapping portions 14. The overlapping portion 14 is in a state where the outer band portion 12A and the inner band portion 12B overlap each other. A fastening ear 16 that is bent outward in a gate shape is formed in the middle of the outer band portion 12A of the overlapping portion 14.

2 and 3 are partial perspective views of the outer band portion 12A and the inner band portion 12B, respectively. A locking hole 32 is formed in the outer band portion 12A of the overlapping portion 14, and locking claws 30 are formed in the inner band portion 12B as a locking body cut and raised in the outer diameter direction. .. The locking hole 32 of the outer band portion 12A is composed of a through hole 31 formed in the outer bunt portion 12A and a claw piece 33 extending from the tip side edge of the outer bunt portion 12A. A hole 32a is formed on the upper surface of the claw piece 33. As shown in FIGS. 3 and 4, the locking claw 30 of the inner band portion 12B is provided with a recessed portion 28 that is punched out from the inside of the band member 12 toward the outside. The recess 28 is formed with an opening 28a that opens in the direction opposite to the tip of the inner band 12B. Further, a convex portion 29 is formed on the ceiling surface 28b of the concave portion 28 of the locking claw 30. Therefore, when the locking claws 30, 30 of the inner band portion 12B are fitted into the locking holes 32, 32 of the outer band portion 12A, a force for expanding the outer band portion 12A and the inner band portion 12B is applied, and each of the engagement portions is engaged. The claw piece 33 enters the opening 28a of the stop claw 30, the convex portion 29 of the locking claw 30 fits into the hole 32a of the claw piece 33, and the outer band portion 12A and the inner band portion 12B come off. There is no.

In the tightening band 10 of this embodiment, the inner band portion 12B enters the inside of the outer band portion 12A by squeezing the tightening ear 16 after being wound around the body to be fastened after being connected to the connecting portion. The diameter is reduced. Then, in the outer band portion 12A and the inner band portion 12B, the tightening force acts on the two locking claws 30, 30 to reduce the diameter of the band member 12. Further, since the locking claw 30 is notched in the width direction and is connected to the other three sides, sufficient strength can be obtained. In the above-described embodiment, the concave-convex relationship between the hole 32a of the claw piece 33 and the convex portion 29 of the locking claw 30 may be reversed.

Further, the holes 32 a may not be provided on the upper surface of the claw piece 33, and the convex portion 29 of the concave portion 28 and the ceiling surface 28 b of the locking claw 30 may not be formed. In this case, when the locking claws 30 and 30 of the inner band portion 12B are fitted into the locking holes 32 and 32 of the outer band portion 12A, a force for expanding the outer band portion 12A is applied to open the locking claws 30. Since the claw piece 33 enters the portion 28a, the outer band portion 12A and the inner band portion 12B are not separated from each other. In this modified example, as shown in FIG. 5, the locking claw 30 may be formed into a hexagonal shape in plan view, and the rear end side of the locking claw 30 may be made smaller to increase the strength.

FIG. 6 shows another embodiment. The tightening band 10 of this embodiment includes a band member 42 and a tightening member 44. The band member 42 is formed by opening a part of a long metal band-shaped band to form a ring shape. On the other hand, the tightening member 44 is formed in an arc shape as a whole, and the tightening ear 16 is bent outward in the middle in a gate shape. Further, the tightening member 44 is divided into two arc-shaped parts 44a and 44b with the tightening ear 16 substantially at the center. One end 42a of the band member 42 and one arc-shaped portion 44a of the tightening member 44 are spot welded 41. On the other hand, the other end 42b of the band member 42 extends along the inner side of the tightening member 44 from one arcuate portion 44b to the other arcuate portion 44a. Then, at the other end portion 42b of the band member 42, two locking claws 30, 30 are formed, similarly to the inner band portion 12B of the above embodiment. Further, the one arcuate portion 44b of the tightening member 44 is also provided with the two locking holes 32 as in the above embodiment, and engages with each other in the same manner as described above. Further, the locking claw 30 and the locking hole 32 are also provided at one end 42a of the band member 42 and one arc-shaped portion 44a of the tightening member 44, and they are engaged with each other and spot-welded 41. In this embodiment, one end portion 42a of the band member 42 and one arc-shaped portion 44a of the tightening member 44 are spot welded 41, so that the tightening member 44 corresponds to the outer band portion 12A and the other band member 42 The end portion 42b corresponds to the inner band portion 12B and has the same effect.

Although various embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and many modifications can be made without departing from the spirit of the invention. And of course.

[0012]

[Effect of the device]

 The tightening band according to the present invention has the following remarkable effects. Since the claw pieces enter and engage with the opening of the locking body (locking claw), the outer band part and the inner band part at both ends of the tightening band do not come off. Further, even if the tightening ears are crushed with a tool, the locking body is formed in a convex shape so that it is not deformed and sufficient strength can be obtained. After tightening, it will not loosen and can be expected to maintain a strong tightening force for a long period of time, and the tightening diameter can also be kept constant. Since the tightening band of the present invention can be opened, it can be tightened by winding it after connecting the object to be connected to the connecting portion, which is excellent in workability.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional side view of a tightening band according to the present invention.

FIG. 2 is a partial perspective explanatory view of the tip of the outer band portion.

FIG. 3 is a partial perspective explanatory view of the tip of the inner band portion.

FIG. 4 is a sectional view of a locking claw.

FIG. 5 is a partial perspective explanatory view of the tip of the outer band portion and the tip of the inner band portion of the tightening band.

FIG. 6 is a side view of a partial cross section of a tightening band according to another embodiment.

FIG. 7 is a side view showing a tightened state of a conventional tightening band.

[Explanation of symbols]

 10 Tightening Band 12 Band Member 14 Tightening Member 16 Tightening Ear 30 Locking Claw 32 Locking Hole 33 Claw Piece

Claims (2)

[Scope of utility model registration request] 1. A metal band member is formed in a ring shape so that both ends thereof overlap each other over a predetermined range, and an engaging portion for engaging a tip end side of an outer band portion of the overlapping portion with an inner band portion is provided. In a tightening band having a tightening ear bent outward in a gate shape in the middle of the outer band of the overlapping part, a through hole is formed in the outer band part of the overlapping part of the band member, and A claw piece extending inward from the edge of the hole opposite to the ear side is provided, and a convex portion protruding in the outer diameter direction is formed on the outer peripheral surface of the inner band member. A tightening band having a locking body having an opening that opens in a circumferential direction so that a claw piece of a through hole can enter when fitted into the inside. 2. A hole or a convex portion is provided on the pawl piece so that the pawl piece engages when the pawl piece enters the opening of the locking body, while a convex portion or a hole engaging with the hole or the convex portion of the pawl piece is provided. The tightening band according to claim 1, wherein the tightening band is provided on the locking body.