JP3140670B2 - Band clip - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a band clip for binding a long member such as a wire harness.

[0002]

2. Description of the Related Art FIGS. 7 and 8 show an example of a conventional band clip (see Japanese Utility Model Laid-Open No. 54-11680).

As shown in FIGS. 7A and 7B, the band clip 1 includes a clip main body 3 and a flexible band portion 5 integrally extended from the clip main body 3. An insertion hole 7 through which the band portion 5 is inserted is formed in the clip body 3, and a flexible check claw 9 is provided in the insertion hole 7. At the center in the width direction of the surface 5 a of the band portion 5, locking projections 11 that engage with the check claws 9 are provided in multiple stages in a sawtooth shape.

When the band portion 5 is wound around the wire harness W and then inserted into the insertion hole 7, the locking projection 11 engages with the tip 9a of the check claw 9 in a ratchet-like manner, and the band portion 5 is held as it is. When tightened, the check pawl 9 is deformed while being in contact with the locking projection 11 to allow the band portion 5 to move. And
As shown in FIG. 8, when the band portion 5 is sufficiently tightened, the tightened state is maintained by the engagement between the check pawl 9 and the locking projection 11, and the wire harness W is bound.

[0005]

However, in such a band clip 1, the locking projection 11 is provided on the band portion 5 in a saw-tooth shape. Is deformed in contact with the locking projection 11, and if the band portion 5 is tightened quickly, the tip 9a of the check claw 9 may be scraped off or melted by friction. For this reason, the engagement force between the locking projection 11 and the check pawl 9 in the tightened state becomes insufficient, and there is a possibility that the holding force of the wire harness W may be reduced.

The disadvantage is that the extension length L of the locking projection 11 is
Can be avoided by reducing
When the extension length L of the wire harness W is reduced, the band clip 1 having the same shape cannot cope with the case where the diameter of the wire harness W is different, so that a plurality of types of band clips are required.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and an object of the present invention is to enable binding without depending on the diameter of a wire harness and to make a band portion fast. An object of the present invention is to provide a band clip capable of obtaining a strong holding force even when tightened.

[0008]

According to the first aspect of the present invention, a substantially flat flexible band portion is extended from a clip body having a band insertion portion, and the extending portion is provided on the surface of the band portion. A multi-stage engaging step portion that is continuous along the setting direction, an engaging portion that is engageable with the engaging step portion of the band portion in a ratchet shape is provided on the clip body, and the band portion is an elongated member. In a band clip in which the engaging step portion and the engaging portion are engaged with each other in a tightened state in which the band is inserted into the band insertion portion and tightened after being wound around the outer periphery of the band, the band is held in the band. The insertion portion communicates with the first insertion portion, the second insertion portion, and the two insertion portions that are arranged in parallel along a direction intersecting the insertion direction of the band portion and intersecting the width direction of the band portion. Communication portion, and the communication portion, the first insertion portion and And projecting from the clip main body so as to divide the insertion portion into two, and when the band portion is substantially flat, the band portion is prevented from moving between the two insertion portions and the band portion is substantially flat. A movement restricting portion that allows the band portion to move when flexed and deformed in the width direction is provided, and the engaging portion does not contact an engaging step portion of the band portion that has passed the first insertion portion, The second insertion portion is engaged with the engagement step portion of the band portion inserted through the second insertion portion.
Are protruded in the insertion portion.

According to the first aspect of the present invention, when a band clip is used, the band portion is wound around the outer periphery of the long member, inserted into the first insertion portion of the band insertion portion, and tightened to a certain extent. It is tightened obliquely from the first insertion portion toward the second insertion portion. When the band portion is tightened obliquely, the band portion bends and deforms in the width direction from the flat plate shape, moves to the second insertion portion through the communication portion, and then the engagement step portion and the engagement portion have a ratchet shape. Engages. Then, when the band portion is further tightened from this state, the engaging step portion slightly moves, and the band portion becomes a tightened state, and the tightened state is maintained by the engagement between the engaging step portion and the engaging portion.

At this time, when the band portion is inserted through the first insertion portion, the engaging step does not come into contact with the engaging portion, and when the band is tightened, the engaging step and the engaging portion are disengaged. It will be in a non-contact state. Therefore, even when the band portion provided with the long engagement step portion is quickly tightened so as to be compatible with the long members having different diameters, the engagement portion is not scraped or melted by friction, Further, the pulling force required for tightening the band portion is also reduced.

According to a second aspect of the present invention, there is provided the band clip according to the first aspect, wherein the engaging portion is provided on the movement restricting portion, and is opposed to the engaging portion of the second insertion portion. A concave portion is formed on an inner surface of the band portion so as to allow bending deformation along a width direction of the band portion.

[0012] According to the second aspect of the invention, in addition to the operation of the first aspect, after the band portion is moved from the first insertion portion to the second insertion portion, the band portion is further tightened. At this time, the band is tightened obliquely toward the recess. This allows the engaging step and the engaging portion to move relative to each other in a non-contact state or a state in which the engaging portion is less caught, so that the engaging portion can be more reliably prevented from being scraped or melted by friction.

According to a third aspect of the present invention, there is provided the band clip according to the second aspect, wherein a bending portion is provided at a central portion in the width direction of the band portion to allow bending deformation along the width direction of the band portion. It is characterized in that a deformation permitting portion is provided.

According to a third aspect of the present invention, in addition to the operation of the second aspect, the band is moved from the first insertion portion to the second insertion portion so as to be inclined toward the recess. When tightening, the bending deformation allowing portion allows the bending deformation along the width direction of the band portion, so that the band portion easily bends and deforms, and the engaging step portion and the engaging portion are not in contact with each other or are less caught. Relative movement in the state. Therefore, it is possible to more reliably prevent the engaging portion from being scraped or melted by friction.

According to a fourth aspect of the present invention, there is provided the band clip according to any one of the first to third aspects, wherein the first insertion portion has a cross section that intersects the insertion direction of the band portion. Forming a dimensional shape larger than the second insertion portion;
The distal end of the band portion has such a dimension that insertion into the first insertion portion is allowed but insertion into the second insertion portion is prevented.

According to the fourth aspect of the invention, in addition to the functions of the first to third aspects, the tip of the band cannot be directly inserted into the second insertion portion. It is possible to reliably prevent a portion from being erroneously inserted into the second insertion portion and moving in a long range while the engagement step portion and the engagement portion are engaged in the second insertion portion. The part can be more reliably prevented from being scraped or melted by friction.

[0017]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG.

FIG. 1 is an overall perspective view showing a band clip according to an embodiment of the present invention, FIG. 2 is an overall view of the band clip of FIG. 1, (a) is a plan view, and (b) is (a). A
FIG. FIG. 3 shows C in FIG.
FIG. 4 is an enlarged view of a portion D in FIG. 2B, and FIG.
It is a cross-sectional view showing the use state of the band clip of
(A) is a state where the band portion is inserted through the first insertion portion,
(B) has shown the state where the band part was inserted in the 2nd insertion part, respectively.

As shown in FIG. 1, this band clip 2
1 includes a clip main body 23 and a flexible band 25 for binding a wire harness W as a long member. The band portion 25 is integrally extended from the clip main body 23, and locking projections 31 as engaging step portions are formed on both sides in the width direction of the surface 25 a of the band portion 25 in a saw blade shape along the extending direction. It is provided continuously in multiple stages. Locking projection 3
1 is formed long enough so that even if the diameter of the wire harness W is different, the band clip 21 of the same shape can cope with it.
5 is also formed long.

The clip body 23 has a through-hole 27 as a band insertion portion through which the band portion 25 is inserted.
And an engagement lock 29 as an engagement portion that is freely engageable with the engagement projection 31 of the band portion 25 in a ratchet shape.

The insertion hole 27 intersects at a right angle with the insertion direction of the band portion 25 (arrow X direction in the figure) and at a direction substantially orthogonal to the width direction of the band portion 25 (arrow Y direction in the diagram). It has a first insertion portion 33, a second insertion portion 35, and a communication portion 37 that communicates the two insertion portions 33, 35, which are arranged side by side. As shown in FIG. 3, the first insertion portions 33 are provided on both sides in the width direction (the arrow Y direction in the drawing) of the communication portion 37.
Body 2 so as to partition the
A movement restricting portion 39 is provided, which protrudes integrally from 3 and narrows the hole width of the communication portion 37. The movement restricting portion 39 is provided when the band portion 25 is substantially flat.
In addition to preventing movement between the band portions 3 and 35, the band portion 25 is allowed to move when the band width is narrowed by bending and deforming the band portion 25 from the substantially flat shape in the width direction (arrow Y direction in the drawing).

As shown in FIG. 4, the movement restricting portion 39 includes
The engagement lock 29 is provided. Engagement lock 29
The second insertion portion 33 engages with the locking projection 31 of the band 25 through the second insertion portion 35 without contacting the locking projection 31 of the band portion 25 through the first insertion portion 33. Is protruded in the insertion portion 35.

As shown in FIG. 3, the inner surface 35a of the second insertion portion 35 facing the engagement lock 29 is allowed to bend and deform along the width direction of the band portion 25 (the Y direction in the drawing). Recess 41 is formed.

As shown in FIG. 2A, a thick portion 43 serving as a flexural deformation permitting portion is provided at the center of the band portion 25 in the width direction (the direction of the arrow Y in the drawing) in the extending direction of the band portion 25. It is provided along. The thick portion 43 is formed so as to have higher rigidity than both sides in the width direction of the band portion 25 provided with the locking projection 31. For this reason, the band 2
5 is a thick portion 4 when pressed toward the recess 41.
It becomes easy to deform with 3 as a fulcrum. That is, the band portion 25 is more easily bent and deformed along the width direction (the direction of the arrow Y in the drawing) by the thick portion 43.

The first insertion portion 33 is provided with a band 25
The cross-sectional dimension crossing the insertion direction (arrow X direction in FIG. 2B) is larger than the second insertion portion 35,
The distal end portion 45 of the band portion 25 is formed in such a dimension that insertion into the first insertion portion 33 is permitted but insertion into the second insertion portion 35 is prevented. Specifically, FIG.
As shown in the figure, the width d3 of the tip portion 45 of the band portion 25 is
Is formed to be larger than the width of the intermediate portion provided with the locking projection 31, and the width d 1 of the first insertion portion 33 corresponding to the width of the band 25 is larger than the width d 3 of the tip 45 of the band 25. Are also large (d1> d3). On the other hand, the width d2 of the second insertion portion 35 and the communication portion 37
Are formed to be slightly larger than the width of the middle part of the band 25 and smaller than the width d3 of the tip 45 of the band 25 (d2 <d3). Accordingly, the widths d1, d2, d of the first insertion portion 33, the second insertion portion 35 (communication portion 37), and the distal end portion 45 of the band portion 25, respectively.
The relationship of 3 is d1>d3> d2, and the insertion of the distal end portion 45 of the band portion 25 into the first insertion portion 33 is permitted, but the insertion into the second insertion portion 35 is prevented.

When the band clip 21 is used, FIG.
As shown in (a), the band portion 25 is wound around the wire harness W such that the locking projection 31 is on the inner peripheral side, and the distal end portion 45 is inserted through the first insertion portion 33 to be tightened to some extent. After that, it is tightened obliquely toward the second insertion portion 35 (the direction of the arrow N in the figure). When the band 25 is tightened diagonally (in the direction of the arrow N in the figure), the band 25
It bends and deforms in a width direction (arrow Y direction in FIG. 1) from a flat plate shape,
After moving to the second insertion portion 35 through the communication portion 37, the engagement protrusion 31 and the engagement lock 29 are engaged in a ratchet shape.

Here, the band portion 25 is connected to the first insertion portion 33.
Is inserted, the locking projection 31 does not contact the engagement lock 29, and the locking projection 31 does not contact the engagement lock 29 when the band portion 25 is tightened. Even when the band portion 25 provided with the long locking projection 31 so as to be able to cope with the harness W is tightened quickly, the engagement lock 29 is not scraped or melted by friction. The pulling force required to tighten 25 is also reduced.

The width d of the tip 45 of the band 25
3 (see FIG. 2) is the width d2 of the second insertion portion (see FIG. 2)
Since the band portion 25 cannot be directly inserted into the second insertion portion 35, the band portion 25 is erroneously inserted into the second insertion portion 35, and the locking projection is formed in the second insertion portion 35. It does not move over a long range while the engagement lock 31 is engaged with the engagement lock 29. Therefore, the engagement lock 29 can be more reliably prevented from being scraped or melted by friction.

Next, the band 25 is further tightened obliquely toward the recess 41 from the engaged state. When the band portion 25 is tightened obliquely toward the concave portion 41, the band portion 25 easily bends and deforms along the concave portion 41 with the thick portion 43 (see FIG. 2A) as a fulcrum. The engagement lock 29 can be relatively moved with the engagement lock 29 in a non-contact state or in a state of little engagement.

Then, the locking projection 3 is formed by the tightening.
After the band 1 has moved slightly and the band 25 has been sufficiently tightened, the tightening of the band 25 is stopped. When the tightening of the band 25 is stopped, the band 25
1 and return to a substantially flat plate shape, the engagement protrusion 31 and the engagement lock 29 are sufficiently engaged, and the wire harness W is bound and held.

That is, the band portion 25 is connected to the first insertion portion 3
After moving from 3 to the second insertion portion 35, when the band portion 25 is further tightened, the band portion 25 is bent and deformed along the concave portion 41, so that the locking projection 31 and the engagement lock 29 are disengaged. The engagement lock 29 can be relatively moved in a state where there is little contact or catching, so that the engagement lock 29 can be more reliably prevented from being scraped or melted by friction.

As described above, according to the present embodiment, the wire harness W can be bound regardless of the diameter of the wire harness W, and the wire harness W is securely held firmly even when the band portion 25 is tightened quickly. And the pulling force required for tightening the band portion 25 can be reduced. Therefore, the number of parts can be reduced by sharing the band clip 21, the workability of tightening the band portion 25 can be improved, and
The holding force of the wire harness W can be improved at the same time.

FIGS. 6A and 6B are overall views of a band clip showing a modification of the present embodiment, wherein FIG. 6A is a plan view, and FIG. 6B is a sectional view taken along line BB of FIG.

The band clip 51 has a cross-sectional dimension crossing the insertion direction of the band portion 25 of the first insertion portion 33 (the direction indicated by the arrow X in FIG. 6B) more than the second insertion portion 35. It is formed large, and the tip portion 45 of the band portion 25 is
Insertion into the insertion portion 33 is allowed, but the second insertion portion 35
This shows another example in which the insertion into the device is prevented from being performed.

More specifically, the thickness t3 of the distal end portion 45 of the band portion 25 is formed to be larger than the thickness of the intermediate portion where the locking projection 31 is provided, and the third thickness corresponding to the thickness of the band portion 25 is formed. The vertical width t1 of the insertion portion 33 is
5 (t1> t3).
The vertical width t2 of the insertion portion 35 is slightly larger than the thickness of the middle portion of the band portion 25 and
5 is formed smaller than the vertical width t3 (t2 <
t3). Therefore, the vertical width t1 of the first insertion portion 33, the vertical width t2 of the second insertion portion 35, and the tip portion 45 of the band portion 25
The relationship of the plate thickness t3 is t1>t3> t2, and the tip portion 45 of the band portion 25 is allowed to be inserted into the first insertion portion 33, but is prevented from being inserted into the second insertion portion 35. You.

In the first embodiment and the second embodiment, the thick portion 43 is provided as the bending deformation allowable portion. However, instead of this, for example, a thin groove portion may be formed. it can. That is, the widthwise central portion of the band portion 25 is formed as a thin-walled groove portion.
5 is easily bent, so that when the band portion 25 is pressed toward the concave portion 41, the band portion 25 is easily bent and deformed in the width direction (the Y direction in the drawing), and the thick portion 4 is formed.
The same operation and effect as the case where 3 is provided can be obtained.

[0037]

As described above, according to the first to fourth aspects of the present invention, it is possible to bind the long member regardless of the diameter of the long member, and to fasten the band portion. However, the long member can be securely held firmly, and the pulling force required for tightening the band can be reduced, so the number of parts can be reduced by using a common band clip and the band can be tightened. The improvement of the property and the improvement of the holding force of the long member can be achieved at the same time.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a band clip according to an embodiment of the present invention.

FIG. 2 is an overall view of the band clip of FIG. 1;
Is a plan view, and (b) is a sectional view taken along line AA of (a).

FIG. 3 is an enlarged view of a portion C in FIG.

FIG. 4 is an enlarged view of a portion D in FIG. 2 (b).

FIGS. 5A and 5B are cross-sectional views illustrating a use state of the band clip of FIG. 1, wherein FIG. 5A illustrates a state in which the band portion is inserted through a first insertion portion, and FIG. 5B illustrates a state in which the band portion is inserted through a second insertion portion; Each state is shown.

6A and 6B are overall views of a band clip showing a modification of the present embodiment, wherein FIG. 6A is a plan view and FIG.
FIG.

FIG. 7 is an overall view showing a conventional band clip,
(A) is a plan view, and (b) is a cross-sectional view.

FIG. 8 is a cross-sectional view illustrating a use state of a conventional band clip.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Band clip 23 Clip main body 25 Band part 25a Tip part of band part 27 Insertion hole (band insertion part) 29 Engagement lock (engagement part) 31 Engagement projection (engagement step part) 33 First insertion part 35 First 2 insertion portion 35a inner surface of second insertion portion 37 communication portion 39 movement restricting portion 41 concave portion 43 thick portion (flexible deformation permitting portion) 45 tip portion of band portion W wire harness X insertion direction of band portion Y of band portion Width direction

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F16L 3/137 B65D 63/12

Claims (4)

(57) [Claims] 1. A substantially flat flexible band portion is extended from a clip body having a band insertion portion, and a multi-stage engaging step is formed on the surface of the band portion and continues along the extending direction. After the band portion is wound around the elongate member, the clip body is inserted into the band insertion portion. In a band clip in which the engagement step portion and the engagement portion are engaged with each other in the tightened tightened state and the tightened state is maintained, the band insertion portion intersects with the insertion direction of the band portion. And a first insertion portion, a second insertion portion, and a communication portion communicating the two insertion portions, which are arranged side by side along a direction intersecting the width direction of the band portion. The screw is formed so as to partition the first insertion portion and the second insertion portion. The band protrudes from the main body and prevents movement of the band portion between the insertion portions when the band portion is substantially flat, and when the band portion is bent and deformed in the width direction from the substantially flat shape. A movement restricting portion that allows movement of the band portion, wherein the engaging portion does not contact the engaging step of the band portion that has passed through the first insertion portion, and the band portion has passed through the second insertion portion. A band clip protruding into the second insertion portion so as to engage with the engagement step portion. 2. The band clip according to claim 1, wherein the engaging portion is provided on the movement restricting portion, and the band portion is provided on an inner surface of the second insertion portion facing the engaging portion. A band clip formed with a concave portion that allows bending deformation along the width direction of the band clip. 3. The band clip according to claim 2, wherein a bending deformation permitting portion that allows bending deformation along the width direction of the band portion is provided at a center portion of the band portion in the width direction. A band clip characterized by the following. 4. The band clip according to claim 1, wherein the first insertion portion has a dimensional shape of a cross section that intersects with the insertion direction of the band portion. The band portion is formed larger than the insertion portion, and the distal end portion of the band portion has a dimension and a shape that allows insertion into the first insertion portion but prevents insertion into the second insertion portion. And a band clip.