JPS60172669A - Banding 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 [Field of Industrial Application] The present invention relates to a binding hand for binding electric wires etc. integrally molded from synthetic resin.

[Prior art]

Conventionally, bands made of synthetic resin have been used as wire binding bands. This synthetic resin binding band is used in large quantities because it is electrically insulating and does not adversely affect signals passing through the wire, and because it has excellent productivity and can be manufactured at low cost.

This binding band can be manufactured from a large one with a length of about 5Qcm to a small one of about 4cm, so it is extremely versatile.

However, as the small binding band becomes smaller, the teeth also become smaller, which has the disadvantage that the binding force decreases accordingly. This decrease in binding force is due to the thinning of the root of the rocking tooth protruding inside the annular head, and the fact that the height of the tooth and the tooth formed on the surface of the hand body has become smaller. be.

The purpose of making the root part of the swing tooth part thinner is to give the swing tooth part flexibility in order to reduce the force required when inserting the band body into the head. In addition, reducing the height of the teeth prevents local stress from acting on the band body, and also reduces the size of the Yuito hand as a whole, and furthermore, makes it possible for the teeth to come into contact with objects to be bound, such as electric wires. This is necessary to avoid damaging the surface.

[Purpose of the invention]

It is an object of the present invention to solve the disadvantage of the conventional binding hand, which is that the binding band is made smaller and the binding strength is lower when the teeth are made smaller.

[Summary of the invention]

In order to achieve the above object, the present invention includes a head and a hand body extending from the side of the head, which are integrally molded of synthetic resin, and a swing tooth portion is provided in a hole in the head. In a synthetic resin binding hand configured such that the teeth provided on the swinging tooth portion mesh with the teeth provided on the band body to bind together, the lower part of the swinging tooth portion includes: This binding hand is characterized in that a pressing part extends beyond the base, and in the binding state, this pressing part presses the surface of the band body to generate a force to strengthen engagement.

〔Example〕

Next, the present invention will be described in detail with reference to the drawings.

The binding band B is composed of a ring-shaped head l and a hand body 2 extending from the side of the head 1. Inside the head 1, a swinging tooth part 3 is attached to the base 4. It is connected. Two teeth 5 are formed on this swinging tooth portion 3, and a pressing portion 6 extends below the teeth 5 with a gap 7 between the lower portion 1a of the head portion 1 and the lower portion 1a of the head portion 1. A contact portion 8 is formed on the surface of this pressing portion 6 .

The hand body 2 is connected via a thin plate portion 9, and teeth 5a are provided on its upper surface (the surface that does not come into contact with the object to be bound). A take-off part 11 extends from the tip of the band body 2 through a bent part 10, and a protrusion 12 for preventing slipping is formed on the upper surface of the take-off part 11.

Wall bodies 1 are provided on both sides of the teeth 5a provided on the surface of the band body 2.
3 is formed, and both sides of the swinging tooth part 3 are held by this wall body 13.

A thin plate portion 9 is formed between the hand body 2 and the head 1, and this portion is constructed so that the curvature of the band body 2 is reduced so that even small objects to be bound can be bound easily. It is something.

This thin plate part 9 is made thinner than the other parts of the hand body 2, as shown in FIG. 1, and has a wider width as shown in FIG. I'm letting you do it.

A characteristic feature of the binding hand according to the present invention is that, as shown in FIG. 1, a pressing part 6 is formed extending from the lower part of the swinging tooth part 3. When the pressing portion 6 is in contact with the tooth 5 a of the hand body 2 , the pressing portion 6 is configured to contact the upper end portion of the tooth 5 a and apply a moment to the swing tooth portion 3 .

Next, the effects of the present invention will be explained with reference to FIG.

FIG. 6 is a cross-sectional view showing the main parts of the binding hand in a tied state, where the pulling part 11 of the hand body 2 is inserted from below the annular head 1 and pulled in the direction of arrow P to bind. . In this case, in a state in which the teeth 5a formed on the surface of the band body 2 mesh with the teeth 5 of the swing tooth section 3 provided in the head 1, the pressing section 6 extending downward of the swing tooth section 3 is pressed. The surface of the tooth 5a is pressed and receives the reaction force indicated by the arrow R. Due to this reaction force R, the swinging tooth portion 3, which is planted in the head 1 at the root 4, generates a moment in the direction of the arrow M.

In the present invention, this moment M is important,
This moment M actively presses the teeth 5 of the swing tooth portion 3 against the teeth 5a of the hand body 2, thereby increasing the meshing force.

The meshing force can be adjusted by the dimensional relationship between the pressing part 6 and the teeth 5, and the pressing part 6 is curved in a direction that increases the gap 7 between the pressing part 6 and the lower part 1a of the head 1. It increases when the warpage occurs, and decreases when there is little warpage.

The contact portion 8 formed on the surface of the pressing portion 6 contacts the teeth 5a to reduce resistance when the band body 2 passes through the hole in the head 1, and as shown in FIG. By interlocking the portion 8 with the teeth 5a'', the binding strength can be increased.

As described in detail above, the binding hand B according to the present invention includes an annular head 1, a hand body 2 extending from the side of the head 1, and a base 4 that is swung into the hole of the head 1. It consists of a movably planted rocking tooth portion 3 and a pressing portion 6 extending downward from the rocking tooth portion 3, and this suppressing portion 6 contacts the hand body 2 in the bundled state and presses the rocking tooth. The feature is that the portion 3 is configured in a dimensional relationship as shown by arrow M to impart a moment.

As shown in FIG. 6, the binding hand according to the present invention having the above-mentioned structure generates a moment M in the swinging tooth part 3 due to the pressing action of the pressing part 6 in the binding state, and the teeth 5 move by the amount of the moment M. The force of meshing with 5a will increase.

This increase in meshing force has the effect that the binding force does not decrease even if the overall structure of the binding hand B, especially the swing tooth portion 3, is downsized.

By forming the thin wall portion 9 between the head 1 and the hand body 2, the band body 2 can be bent with a small curvature, and even small-diameter objects to be bound can be bound.

The binding hand according to the present invention is most suitable for a compact binding hand, but it goes without saying that it can also be used for other standard sizes.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of the binding hand with the head cut out, Fig. 2 is a plan view of the head, and Fig. 3 is a sectional view of the hand body. , FIG. 4 is a bottom view of the head, FIG. 5 is a front view of the take-off part, and FIG. 6 is a sectional view showing the bundled state. DESCRIPTION OF SYMBOLS 1... Head, 1a... Lower part of the head, 2... Hand body, 3... Rocking tooth part, 4... Root, 5.5a, 5a'... Teeth, 6 ... Pressing part, 7...
・Gap, 8...Contact part, 9...Thin plate part, 10...
bent portion, 11... take-up portion, 12... protrusion, 13.
・Wall body. Agent: Patent Attorney Makoto Ogawa − Patent Attorney: Ken Noguchi Patent Attorney: Kazuhiko Saishita

Claims (1)

[Claims] It consists of a head and a hand body extended by the lateral force of the head, a swinging tooth part is installed in a hole in the head, and a tooth provided on the swinging tooth part and a hand body provided on the band body. In a synthetic resin binding band configured to be bound by meshing with the teeth,
A pressing part is extended beyond the root of the swing tooth part at the lower part thereof, and in the bundled state, the pressing part is configured to press the surface of the hand body and generate a force to strengthen the engagement. A binding hand featuring.