JP2007282351A - Belt clamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate a binding work by releasing the bending rigidity of a belt portion, in a belt clamp for binding an item to be bound such as a wire harness or the like. <P>SOLUTION: The belt clamp 1 has: a belt-shaped belt part 2 wound on the outer periphery of the item to be bound such as the wire harness or the like; and a buckle part 3 equipped with a holding position 3a to be engaged with the belt part 2 by inserting the belt part 2 from its tip end position 2b for fastening and holding the belt part as a desired fastening state. The belt part 2 has an engagement teeth row 10 formed on its belt surface 2c. The buckles part 3 has engagement claws 20a to 20c to be engaged with the engagement teeth row 10 arranged on the holding position 3a. The engagement teeth row 10 has a first and a second engagement teeth rows 11, 12, wherein a pitch between the engagement teeth 10a is set to different dimensions, repeatedly arranged in the belt length direction of the belt part 2. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a belt clamp. Specifically, the present invention relates to a belt clamp for holding a wiring harness such as a wire harness or a pipe in a state of being bound to a predetermined location such as a vehicle body panel.

  Conventionally, this type of belt clamp has been used to hold, for example, wires such as a wire harness routed along a vehicle body panel in a bundled state at a predetermined position of the vehicle body panel. Here, Patent Document 1 below discloses an example of the configuration of the belt clamp. That is, the belt clamp includes a belt portion formed in a belt shape and a buckle portion formed integrally with a base end side portion of the belt portion. The buckle portion is formed with a holding portion through which the belt portion can be inserted from the tip portion. The holding portion is formed with an engaging claw that can be held in a state where the belt portion is inserted. On the other hand, in the belt portion, a plurality of engaging teeth that can mesh with the engaging claws are arranged in the band length direction on the band surface facing the engaging claws at the time of the insertion. Therefore, the belt part is wound around the outer periphery of the wiring (bound object), and the belt part is held in the buckle part in a desired tightening state by rewinding the tip part and inserting and tightening the holding part of the buckle part. can do. That is, the object to be bound can be held in a state of being bound to the belt clamp.

JP 2001-50217 A

However, in the above conventional technique, the belt portion has a high bending rigidity because a plurality of engagement teeth are formed on the belt portion. This makes it difficult to perform a binding operation such as winding the belt portion around the outer periphery of the object to be bound.
That is, the plurality of engaging teeth formed on the belt portion are set to have a relatively small pitch between the engaging teeth so that the binding can be satisfactorily performed even with a relatively small diameter object to be bound. For this reason, the tooth wall which comprises each engagement tooth becomes a structure arrange | positioned in small increments, and the bending rigidity of the whole belt part will be improved. Thereby, it becomes difficult to perform an operation of winding the belt portion around the outer periphery of the object to be bound, or winding the belt portion back and inserting the belt portion into the holding portion of the buckle portion. Furthermore, it is difficult to perform a tightening operation for tightening the belt portion to a desired tightening state after the belt portion is inserted through the holding portion of the buckle portion.

  The present invention has been devised as a solution to the above-described problem, and the problem to be solved by the present invention is to bend the belt portion in a belt clamp for binding an object to be bound such as a wire harness. It is to ease the bundling work by reducing the rigidity.

In order to solve the above problems, the belt clamp of the present invention takes the following means.
First, in the first invention, a belt-like belt portion wound around the outer periphery of the object to be bound and a base end portion of the belt part are integrated to hold the object to be bound such as a wire harness in a bundled state. A belt clamp having a buckle portion having a holding portion that is engaged with the belt portion and held in a desired tightening state by inserting and tightening a belt portion wound around the outer periphery of the bundle from the tip portion. On the belt surface of the belt portion, a plurality of engagement teeth are arranged in the belt length direction to form an engagement tooth row, and in the holding portion of the buckle portion, the engagement teeth of the inserted belt portion are formed. An engaging claw that meshes with the row is disposed, and the engaging tooth row includes a plurality of engaging tooth rows in which the pitch between the engaging teeth is set to be different from each other in the belt length direction of the belt portion. It is characterized by being repeatedly arranged.
Here, “repeating” includes a state in which engaging tooth rows arranged in a series of several pitches are repeatedly arranged in the band length direction.
According to the first aspect of the present invention, in the engagement tooth row, in the region where the pitch between the engagement teeth is set to be relatively large, the belt portion is bent as compared with the other regions where the pitch is set to be small. The rigidity is low. In other words, the bending rigidity of the belt portion is intermittently reduced over the belt length direction.

Next, according to a second aspect of the present invention, in the first aspect described above, the engagement tooth row includes a first engagement tooth row and a second engagement row in which the pitch between the engagement teeth is different. It is characterized in that the dentition is alternately and repeatedly arranged at every pitch.
According to the second aspect of the present invention, one of the first engagement tooth row and the second engagement tooth row is set to have a larger pitch than the other. In one region where the pitch is set large, the bending rigidity of the belt portion is lower than that in the other region. Thereby, the bending rigidity of the belt portion is intermittently lowered over the entire band length direction.

Next, according to a third aspect of the present invention, in the second aspect described above, the pitch of the second engagement tooth row is set as a size in which the first engagement tooth row is connected to two pitches. The three pitches are set to the same pitch as that of the first engagement tooth row and are arranged at equal intervals in the insertion direction of the belt portion.
According to the third aspect of the invention, by inserting the belt portion into the holding portion, the belt portion is always engaged and held in a state where the two engaging claws are simultaneously engaged with the engaging tooth row. Further, the tightening pitch when tightening the belt portion is always the pitch of the first engaging tooth row.

The present invention can obtain the following effects by taking the above-described means.
First, according to 1st invention, in the belt clamp for bundling to-be-bound objects, such as a wire harness, the bending rigidity of a belt part can be relieve | moderated intermittently over the whole belt length direction. Thereby, it can make it easy to perform the binding operation | work of a to-be-bound object.
Furthermore, according to the second invention, the entire bending rigidity of the belt portion in the belt length direction can be intermittently alleviated.
Furthermore, according to the third aspect of the invention, the two engaging claws can always be engaged with the engaging tooth row at the same time, and the engagement holding force of the belt portion can be increased. In addition, the object to be bound can be always tightened at the pitch interval of the first engagement teeth row in the entire belt length direction of the belt portion.

  Embodiments of the best mode for carrying out the present invention will be described below with reference to the drawings.

  First, the structure of the belt clamp 1 of Example 1 is demonstrated using FIGS. FIG. 1 is a plan view showing the appearance of the belt clamp 1 of the present embodiment, FIG. 2 is a side view of FIG. 1, and FIG. 3 schematically shows the shapes of the engaging tooth row 10 and the engaging claws 20a to 20c. 4 is a cross-sectional view showing a state in which the first engaging tooth row 11 and the engaging claws 20a and 20b are engaged with each other. FIG. 5 shows a state in which the belt portion 2 is further inserted by one pitch from the state shown in FIG. 6 is a cross-sectional view illustrating a state where the belt portion 2 is further inserted by 1 pitch from the state of FIG. 5, and FIG. 7 is a side view illustrating a state where the object to be bound W is bound by the belt clamp 1. FIG. 8 is a side view showing a state in which the relatively small-diameter objects to be bound J are bound.

As shown well in FIG. 7, the belt clamp 1 of this embodiment is a state in which the objects to be bound W such as wire harnesses and pipes arranged along the vehicle body panel P are bound, and this is attached to the vehicle body panel P. A holding function is provided for fixing to a predetermined location. Specifically, the belt clamp 1 has a belt-like belt portion 2 and a buckle portion 3 formed integrally with a base end portion 2a of the belt portion 2 as well shown in FIG. The former belt part 2 is provided with the flexibility which can be wound around the outer periphery of the to-be-bound object W, as FIG. 7 shows well. The latter buckle portion 3 includes a holding portion 3a that can hold the belt portion 2 in a desired tightening state by inserting the belt portion 2 from the tip portion 2b and performing a tightening operation.
Here, as shown in FIG. 7, the engagement claw 20 a to 20 c formed in the holding portion 3 a is engaged with the engagement tooth row 10 formed in the belt portion 2. This is done by meshing with.
Hereinafter, the structure of the belt part 2 and the buckle part 3 is demonstrated in detail.

First, the structure of the belt part 2 is demonstrated using FIG. That is, the belt part 2 is integrally formed with a synthetic resin. Here, the belt portion 2 has a belt surface 2c wound around the outer peripheral surface of the object to be bound W (see FIG. 7) on the surface facing the left side in FIG. A plurality of engaging teeth 10a are arranged on the band surface 2c over almost the entire area in the band length direction, and an engaging tooth row 10 is formed. The engagement tooth row 10 includes a first engagement tooth row 11 in which the pitch between the engagement teeth 10a is set to be relatively small, and a second engagement tooth in which the pitch between the engagement teeth 10a is set to be relatively large. The row 12 and the row 12 are alternately repeated every pitch. Here, the pitch between the engagement teeth 10a is set to, for example, 1.3 mm in the first engagement tooth row 11, and the first engagement tooth row 11 is tightened when bundling a relatively small diameter object J (see FIG. 8). The size is relatively small. Moreover, the pitch between the engagement teeth 10a is set as 2.6 mm, for example, and the 2nd engagement tooth row | line | column 12 is set as the magnitude | size which connected the 1st engagement tooth row | line | column 11 2 pitches. The shapes of the first engagement tooth row 11 and the second engagement tooth row 12 are shown in detail in FIG.
Here, the region in which the second engagement tooth row 12 is formed has a lower bending rigidity than the region in which the first engagement tooth row 11 is formed. That is, in the region where the second engagement tooth row 12 is formed, the accumulation density of the engagement teeth 10a is smaller than in the region where the first engagement tooth row 11 is formed, and the section coefficient for bending of the belt portion 2 is small. This is because it is getting smaller. Thereby, the belt part 2 becomes easy to bend in the area | region in which the 2nd engagement tooth row | line | column 12 was formed.

Next, the structure of the buckle part 3 is demonstrated. That is, as shown well in FIG. 7, the buckle portion 3 includes a holding portion 3 a that holds the belt portion 2 in a state of being pulled from the tip portion 2 b, and a belt clamp 1 for fixing the belt clamp 1 to a predetermined location on the vehicle body panel P. And an attachment portion 3b. The buckle portion 3 is formed integrally with the belt portion 2 from a synthetic resin.
Specifically, as shown in FIG. 2, the holding portion 3 a has an insertion hole H through which the belt portion 2 can be inserted and an engagement claw 20 a to engage with the engagement tooth row 10 of the inserted belt portion 2. 20c. The former insertion opening H is formed so as to penetrate through the buckle portion 3. 7 and FIG. 8, the tip portion 2b of the belt portion 2 inserted through the insertion port H can be further pulled in the insertion direction I, and the objects to be bound W can be bound. The tightening operation of the belt portion 2 can be performed. The latter engaging claws 20a to 20c are formed inside the insertion opening H. Three engagement claws 20 a to 20 c are arranged along the passage direction of the insertion opening H, and mesh with the engagement tooth row 10 of the inserted belt portion 2. Thereby, the movement of the inserted belt portion 2 in the direction opposite to the insertion direction I (withdrawal direction O) can be restricted, and the belt portion 2 can be held so as to be prevented from being detached. The shapes of the engaging claws 20a to 20c are shown in detail in FIG.
Next, as shown in FIG. 7, the attachment portion 3 b is formed in a column shape that can be inserted into an attachment hole A formed at a predetermined location of the vehicle body panel P. The attachment portion 3b has an engagement piece 3ba that holds the attachment portion 3b inserted into the attachment hole A so as to prevent the attachment portion 3b from coming off. Specifically, the engagement pieces 3ba are formed on both side surfaces of the attachment portion 3b. After being narrowed by being inserted into the attachment hole A, the engagement pieces 3ba are expanded and deformed, and the inside of the vehicle body panel P (the lower side in the drawing). ). Moreover, the umbrella-shaped stabilizer 3bb is formed in the site | part of the upper end side of the attachment site | part 3b. The stabilizer 3bb abuts against the wall surface on the outside (upper side in the drawing) of the vehicle body panel P when inserting the attachment portion 3b into the attachment hole A, and provides an elastic resistance to the insertion force of the attachment portion 3b. Make it work. Therefore, in a state where the attachment part 3b is held by the engagement piece 3ba so as to be prevented from being detached, the attachment part 3b is elastically held by the restoring force (elastic resistance force) of the stabilizer 3bb. Thereby, the rattling of the attachment part 3b is suppressed and the attachment state is stabilized.

  Here, the structure of the engaging claws 20a to 20c described above will be described in more detail. That is, the engagement claws 20a to 20c are formed so as to protrude from the upper surface of the insertion opening H in the lower direction in the drawing, as well shown in FIG. These engagement claws 20 a to 20 c are set such that the pitch between them is in accordance with the pitch of the first engagement tooth row 11. 4, the shape of the engaging claws 20a to 20c is formed such that the upstream surface in the insertion direction I is inclined to the downstream side toward the tip (lower end). ing. Further, the downstream surface is formed as a vertical surface that is substantially perpendicular. Correspondingly, the shape of each engaging tooth 10a of the engaging tooth row 10 formed on the belt portion 2 is also in contact with the inclined surface (right side in the drawing), as well shown in FIG. Is formed as an inclined surface inclined toward the left side in the drawing toward the tip (upper end). The left surface in the drawing is formed as a vertical surface that is substantially perpendicular. Therefore, when a force is applied in a direction in which the belt portion 2 is inserted into the insertion opening H, the slopes come into contact with each other (not shown). In this case, the engagement teeth 10a and the engagement claws 20a to 20c are easily bent and deformed by the insertion force, so that the belt portion 2 can be inserted with a relatively small force. Further, when a force is applied to the belt portion 2 in the withdrawal direction O opposite to the above, the vertical surfaces come into contact with each other (the state shown in the figure). In this case, since each engagement tooth 10a and each engagement claw 20a-20c are in a state where it is difficult to bend and deform, it is held in a locked state (engaged state) in which the belt portion 2 is prevented from coming off.

As shown in FIGS. 4 to 6, the engaging claws 20 a to 20 c having the above configuration always have two engaging claws 20 a and 20 b (FIG. 4) with respect to the engaging tooth row 10 of the inserted belt portion 2. The engaging claws 20b and 20c (see FIG. 5) or the engaging claws 20a and 20c (see FIG. 6) can be meshed simultaneously.
That is, first, as shown well in FIG. 4, the belt portion 2 is inserted into the insertion opening H of the holding portion 3a from the tip portion 2b, whereby the engaging claw is engaged with the first engaging tooth row 11. A state in which 20a and 20b are engaged with each other is formed.
When the belt portion 2 is further inserted by one pitch in the insertion direction I from this state, the engagement claws 20b and 20c are engaged with the first engagement tooth row 11 as well shown in FIG. Here, 1 pitch is the same size as the pitch of the 1st engagement tooth row 11, ie, each pitch of engagement claw 20a-20c.
When the belt portion 2 is further inserted by one pitch in the insertion direction I from the state of FIG. 5, the engagement claws 20 a and 20 c mesh with the second engagement tooth row 12 as well shown in FIG. 6.
Then, when the belt portion 2 is further inserted by one pitch in the insertion direction I from the state of FIG. 6, the meshing state shown in FIG. 4 is obtained, and thereafter the meshing pattern is repeated in order. That is, the belt portion 2 inserted through the holding portion always has two engagement claws 20a and 20b (see FIG. 4), engagement claws 20b and 20c (see FIG. 5), or engagement claws 20a and 20c (see FIG. 6). (See FIG. 4), the retaining state is held at the same time.

Then, the usage method of a present Example is demonstrated.
That is, first, as shown in FIG. 7, the belt portion 2 is wound around the outer periphery of the object to be bound W in order to bind the object to be bound W. Then, the belt portion 2 is inserted from the distal end portion 2b into the insertion opening H of the holding portion 3a and tightened, so that the belt portion 2 is held so as to be prevented from being detached at the tightened state position. Therefore, by further tightening the belt portion 2, the objects to be bound W can be bound by the belt portion 2. The belt clamp 1 that binds the object to be bound W fixes the object to be bound W to the vehicle body panel P by inserting the attachment portion 3b into the attachment hole A formed at a predetermined position of the vehicle body panel P. It can be held as a state.

  Thus, according to the belt clamp 1 of the present embodiment, in the belt clamp 1 capable of binding the object W to be bound, such as a wire harness, the bending rigidity of the belt portion 2 is intermittent over the entire band length direction. Can be alleviated equally. Thereby, it can make it easy to perform the binding operation | work of the to-be-bound object W. Furthermore, the engaging tooth row 10 is always engaged with the two engaging claws 20a and 20b (see FIG. 4), the engaging claws 20b and 20c (see FIG. 5) or the engaging claws 20a and 20c (see FIG. 6) at the same time. Therefore, the mesh holding force of the belt portion 2 can be increased. Furthermore, the object to be bundled W can be always tightened at the pitch interval of the first engaging tooth row 11 in the entire band length direction of the belt portion 2.

Although the embodiment of the present invention has been described with respect to one example, the present invention can be implemented in various forms in addition to the above-described example.
That is, first, the number of the engaging claws to be installed is not particularly limited. For example, the engagement holding force of the belt portion can be further increased by providing four or more engagement claws. Further, in the case of a configuration in which a sufficient engagement holding force is exhibited by only one engagement claw, the number of engagement claws may be one. Thereby, since the installation space of an engagement nail | claw is suppressed, the shape of a buckle part can be made compact. In this case, even if the pitch of the engaging teeth row is set to three or more, it is not necessary to change the configuration of the engaging claws, so that the specification of the belt portion can be easily changed. Therefore, for example, the bending rigidity of the belt portion can be easily changed in various ways according to the purpose of use. In addition, the pitch of the second engagement tooth row may be a size in which the first engagement tooth row is connected by three or more pitches. In this case, by increasing the number of engagement claws installed according to the pitch, at least two engagement claws can always be engaged with the engagement tooth row at the same time.
The dimensions for specifying the shape such as the thickness dimension and the height dimension of the engaging claw and each engaging tooth were not specified, but these are various such as rigidity and strength of each part of the belt clamp. It is appropriately set depending on conditions.

It is a top view showing the appearance of a belt clamp. It is a side view of FIG. It is a perspective view showing typically the shape of an engagement tooth row and an engagement claw. It is sectional drawing showing the state which the 1st engagement tooth row | line | column and engagement claw meshed. FIG. 5 is a cross-sectional view illustrating a state where the belt portion is further inserted by one pitch from the state of FIG. 4. FIG. 6 is a cross-sectional view illustrating a state where the belt portion is further inserted by one pitch from the state of FIG. 5. It is a side view showing the state which bound the thing to be bound by the belt clamp. It is a side view showing the state which bound the comparatively small diameter to-be-bound object.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Belt clamp 2 Belt part 2a Base end part 2b Tip part 2c Band surface 3 Buckle part 3a Holding part 3b Attachment part 3ba Engagement piece 3bb Stabilizer 10 Engagement tooth row 11 1st engagement tooth row 11a Engagement tooth 12 2nd Engagement tooth row 12a Engagement teeth 20a to 20c Engagement claw W Bundled object J Bundled object having a relatively small diameter H Insertion port I Insertion direction O Removal direction P Body panel A Mounting hole

Claims (3)

In order to hold the object to be bound such as a wire harness in a bundled state, a belt-like belt part wound around the outer periphery of the object to be bound and a base end portion of the belt part are integrated with the outer periphery of the object to be bound. A belt clamp having a holding part that is inserted into and tightened from a front end part to be engaged with the belt part and is held in a desired tightening state.
On the belt surface of the belt portion, an engagement tooth row is formed by arranging a plurality of engagement teeth in the belt length direction,
The holding portion of the buckle part is provided with an engaging claw that meshes with the engaging tooth row of the inserted belt part,
The engagement tooth row includes a plurality of engagement tooth rows in which pitches between the engagement teeth are set to different sizes, and are repeatedly arranged in a belt length direction of the belt portion. Clamp. The belt clamp according to claim 1,
The engaging tooth row is formed by alternately and repeatedly arranging first engaging tooth rows and second engaging tooth rows each having a different pitch between the engaging teeth. A belt clamp characterized by that. The belt clamp according to claim 2,
The pitch of the second engagement teeth row is set as a size of the first engagement teeth row connected in two pitches,
3. The belt clamp according to claim 1, wherein the engagement claws are set at the same pitch as the first engagement tooth row and are arranged at equal intervals in the insertion direction of the belt portion.

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