JPH0573387U - Tie - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] The present invention relates to a binding tool in which an end portion of a binding band can be easily inserted and can be securely locked to the end portion. [Structure] An insertion chamber A ₁ for a binding band B in which an engaging portion is continuously formed in an extension direction and a storage chamber A ₂ for an end B ₁ of the binding band B are provided, and the insertion chamber A ₁ has a band inlet side. A flexible locking piece 3 is provided on P and an enlarged space R ₂ is provided on the band exit side Q, and a partition wall 1 between the insertion chamber A ₁ and the storage chamber A ₂ is provided.
A flexible locking piece 6 facing the storage chamber A ₂ on the band exit side Q is provided corresponding to the enlarged space R ₂ .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a binding tool used when binding a linear body such as an electric wire using a band.

[0002]

[Prior Art]

FIG. 6 shows a binding band a made of synthetic resin for binding band according to the applicant's prior application (Japanese Patent Application No. 2-89472), and FIG. 7 shows binding band b made of synthetic resin. The binding tool a has a rectangular parallelepiped outer shape, and has an insertion chamber a ₁ for the binding band b and an accommodation chamber a ₂ for the end b ₁ of the binding band b ₁ which are vertically adjacent to each other (FIG. 8). The insertion chamber a ₁ and the accommodating chamber a ₂ have a vertical gap approximately equal to the thickness of the binding band b and have a common partition wall c. An engaging portion b ₂ is continuously formed in the extending direction of the binding band b.

A flexible locking piece d ′ having a serrated locking protrusion d ₂ and an operating end d ₃ is provided on the outer wall d of the insertion chamber a _{1 on} the side of the opening p by a slit d ₁ , and the accommodation chamber a ₂ On the side of the opening q, a flexible locking piece c ′ having a serrated locking projection c ₂ is formed by the slit c ₁ on the partition wall c, and a flexible escape piece e ′ is formed by the slit e _{1 on the} inner wall e. ing.

In the above structure, while holding the flexible locking piece d ′ through the operation end d ₃ by the jig, the binding band b is passed through the insertion chamber a ₁ and the wire bundle f is held as a coupled object. The end b ₁ is inserted into the accommodating chamber a ₂ , and the flexible escape piece e ′ is displaced and locked to the flexible locking piece c ′, and then the supply side of the band b is bent to the flexible locking piece d ′. Is dislocated to the outside while pulling and tightening, and the restored flexible locking piece d'locks and cuts the outer end portion (Fig. 9).

By the way, in the above structure, when the band b is tightened, the flexible locking piece c ′ is pulled and bent, and the flexible escape piece e ′ is also bent, so that a sufficient locking force cannot be obtained. There is a defect, and when the wire bundle f is fixed and the binding tool a is pulled upward (FIG. 10), a gap g is created between the wire bundle f and the inner surface of the binding tool a, and as a result, the flexible relief piece e ′ is formed. Since it becomes easy to displace, the locking of the end b ₁ of the band b becomes insufficient.

[0006]

[Problems to be solved by the device]

 The present invention was made by paying attention to the above points, and is devised so that it can be easily locked to the end portion of the band and that the locking is not disengaged.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention has an insertion chamber for a binding band in which an engaging portion is continuously formed in an extension direction and a storage chamber for an end of the binding band, and the band is provided in the insertion chamber. A flexible locking piece is provided on the inlet side, an enlarged space is provided on the band outlet side, and a flexible locking piece facing the storage chamber is provided on a partition wall that separates the insertion chamber and the storage chamber. The structure in which the locking piece is opposed to the enlarged space is adopted.

[0008]

[Action]

 When the end of the binding band is pushed into the band accommodating chamber of the binding tool while holding the bundle of electric wires, the flexible locking piece provided on the partition wall moves the band located in the band insertion chamber to the expansion space and Displacement allows insertion of the end of the band and the flexible locking piece restores to lock the band.

[0009]

【Example】

In FIG. 1, a tying member A made of synthetic resin has a rectangular parallelepiped outer shape, and has an outer band insertion chamber A ₁ and an inner band accommodating chamber A ₂ which correspond to the upper part of the drawing. The band insertion chamber A ₁ and the band accommodating chamber A ₂ have an upper and lower gap substantially equal to the thickness of the binding band B (see FIG. 5) and have a common partition wall 1. On the binding band B, as in the conventional example, an engaging portion is continuously formed in the extending direction.

In the band insertion chamber A ₁ , a flexible locking piece 3 having a cantilever support portion 3a is provided on the band outlet side Q of the outer wall 2 with its free end portion 3b facing the band inlet side P. The flexible locking piece 3 is separated from the lateral wall 4 by a slit 5, has a serrated locking projection 3c on the inner side, and has a flexible allowance space R ₁ on the outer side. The base portion 3d of the flexible locking piece 3 is formed in a tapered shape over the cantilever support portion 3a, so that the flexible locking piece 3 has an enlarged space R ₂ on the band outlet side.

A flexible locking piece 6 is provided by a slit 5 on the band outlet side Q of the partition wall 1, and the band accommodation chamber A is provided at a free end 6 a of the flexible locking piece 6.₂Is provided with a saw-toothed locking projection 6b. The free end 6a has the enlarged space R₂Is facing. In the above structure, the end portion B of the band B₁Is the band insertion room A from the band entrance side P ₁ However, in order to enable this insertion, the free end 3b of the flexible locking piece 3 is made into a flexible space R by a jig.₁Is displaced in the outer wall 2 direction via.

The end portion B ₁ of the band B penetrating the band insertion chamber A ₁ is inserted into the band housing chamber A ₂ from the band inlet side P after binding the wire bundle C and locked by the flexible locking piece 6. To be done. In this case, the free end portion 6a of the flexible locking piece 6 is displaced by itself while driving the band B of the band insertion chamber A ₁ into the expansion space R ₂ so that the end portion B ₁ of the band can be inserted and locked. To

In this state, the band B is pulled to tighten the wire bundle C and cut it. When tightened by the band B, the band B presses the flexible locking piece 6, so that the holding force of the flexible locking piece 6 increases.

[0014]

[Effect of the device]

 As described above, the present invention has the insertion chamber of the binding band in which the engaging portion is continuously formed in the extension direction and the accommodation chamber of the end of the binding band, and the insertion chamber is flexible toward the band inlet side. A locking piece is provided and an enlarged space is provided on the band outlet side. A flexible locking piece facing the storage chamber is provided on a partition wall that divides the insertion chamber and the storage chamber, and the flexible locking piece is enlarged. Since it is made to face the space, the flexible locking piece in the band accommodating chamber can escape through the enlarged space of the band inserting chamber when the end of the band is inserted, so that the band can be easily locked. In addition, it has a feature that the locked state of the flexible locking piece is secured by the band.

[Brief description of drawings]

FIG. 1 is a perspective view of a binding tool according to the present invention.

FIG. 2 is a sectional view taken along line XX of FIG.

3 is a sectional view taken along line YY of FIG.

FIG. 4 is a sectional view taken along line ZZ in FIG.

FIG. 5 is a cross-sectional view of a band focused state.

FIG. 6 is a perspective view of a conventional binding tool.

FIG. 7 is a perspective view of a band.

8 is a sectional view taken along line WW of FIG.

FIG. 9 is a cross-sectional view of the above-mentioned band in a focused state.

FIG. 10 is a cross-sectional view showing a change in the focused state in the above.

[Explanation of symbols]

A Bundling tool A ₁ Insertion chamber A ₂ Storage chamber P Band inlet side Q Band outlet side R ₂ Expanded space 3,6 Flexible locking piece

Claims (1)

[Scope of utility model registration request] 1. A flexible locking piece having a binding band insertion chamber in which an engaging portion is continuously formed in the extension direction and a storage chamber at an end of the binding band, the flexible locking member being located on the band inlet side in the insertion chamber. And an expanded space is provided on the band exit side, and a flexible locking piece that faces the storage chamber is provided on a partition wall that separates the insertion chamber and the storage chamber, and the flexible locking piece faces the expanded space. A binding tool characterized by being formed by