JP2016082689A - Wire binding tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wire binding tool which is capable of cancelling a binding state, improves workability of binding work, is capable of stably holding the binding state even if strong fastening is performed, and improves reliability.SOLUTION: The wire binding tool comprises a band 11 and a lock 12. A frame 20 of the lock 12 includes: a substantially U-shaped frame main body 21 in which a lock pawl 25 is supported and with which a proximal end of the band 11 is coupled integrally; and a lid-shaped body 22 including a proximal end portion 22a which is coupled in a rotatable manner to one open end portion 21a of the frame main body 21 at one end side in a band width direction, and an intermediate part 22b which can be made close to and separate from another open end portion 21b of the frame main body 21. Within an outer peripheral wall surface zone Z that is at an outer peripheral side of the frame 20 and separate from an end face 21d of the frame main body 21 at one end side in the band width direction, a distal end portion 22c of the lid-shaped body 22 coupled to the intermediate part 22b is locked to the frame main body 21 while forming a step in a direction orthogonal with the width direction of the band 11.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an electric wire binding device, and more particularly to an electric wire binding device capable of binding an electric wire group of a wire harness and releasing the binding state.

  Conventionally, when binding a wire group of a wire harness or locking and fixing to a panel, a wire binding tool such as a binding band or a clip (including a clamp, hereinafter simply referred to as a clip) has been widely used. .

  In general, the wire tie has a detent structure that can withstand strong bundling, but it is not easy to release the bundling state, and if the bundling operation is incorrect or rebundled, the work Becomes complicated and difficult. Therefore, recently, an electric wire binding device has been developed that can easily release the binding state from the outer side of the electric wire binding device.

  As this type of electric wire binding tool, for example, among the lock portions having locking claws that engage with the saw blade portions of the binding band, a hinge is formed on one end side of the opposing wall portion facing the locking claws, while facing A concave / convex engaging portion is provided on the other end of the wall, and the opposing wall can be engaged with the concave / convex in a closed state in which the opposite wall is brought into contact with the band in the lock and the band is pressed against the locking claw. It is known that sometimes the band can be detached to the outside of the lock portion (see, for example, Patent Document 1).

  In addition, a slit-shaped notch is provided in the side wall portion of the lock portion that supports the locking claw, and the binding band locked to the locking claw within the lock portion can be slid in the band width direction to unlock the lock. Is also known (see, for example, Patent Document 2).

JP 2001-218340 A JP 2001-208017 A

  However, in the conventional electric wire binding tool as described above, the tensile force acting on the binding band portion is increased, and the opposing wall portion facing the locking claw is biased in a direction away from the locking claw. The stress increased. For this reason, when the tight binding is performed, the engagement of the concave and convex engaging portions that hold the opposing wall portion in the closed state is released, or the opposing wall portion adjacent to the slit of the locking portion is bent and the binding band is locked. It becomes easy to be released, and there has been a concern that the bundling state of the wire bundling tool may be released after bundling.

  On the other hand, for example, it may be possible to increase the rigidity of the lock portion to make it difficult for the uneven engagement portion to be detached from the engaged state or to suppress the bending of the opposing wall portion adjacent to the slit. When strong tightening is required, there is a problem that the binding state of the electric wire binding tool may not be solved, and the binding workability is reduced and the cost is increased.

  Therefore, the present invention provides an electric wire binding tool that can release the binding state, has good workability in the binding work, and can stably maintain the binding state even when tightened firmly. For the purpose.

  In order to achieve the above object, the wire binding device according to the present invention is formed by integrally binding a binding band portion in which a plurality of engaging irregularities are formed at a predetermined pitch in the length direction and a base end of the band portion. And a lock body having a locking claw disposed in the frame body so as to be releasably engaged with the locking concavo-convex portion. An electric wire binding tool that locks the band portion in a locked state inside the lock portion and binds a wire group of a wire harness, wherein the frame body supports the locking claw and the band portion The base end of the frame body is integrally joined and opened at one end side in the width direction of the band portion, and one end of the frame body main body is opened at one end side in the width direction of the band portion. A base end portion pivotably coupled to the end portion and rotation at the base end portion. And a lid-like body having an intermediate portion that can approach and separate from the other open end of the frame body on one end side in the width direction of the band portion, and the outer peripheral side of the frame body In the frame body main body, a distal end portion of the lid-like body connected to the intermediate portion is located with respect to the frame body main body within an outer peripheral wall surface region separated from an end face on one end side in the width direction of the band portion. The band portion is locked while forming a step in a direction orthogonal to the width direction of the band portion.

  With this configuration, in the present invention, the band portion is inserted into the lock portion from the distal end side in a state where the tension accompanying the bundling of the electric wires acts on the band portion, and the locking uneven portion is engaged with the locking claw of the lock portion. Stopped. At this time, it is regulated in the vicinity of the other open end of the frame body adjacent to the outer surface of the band portion that the locking uneven portion of the band portion is detached from the locking claw. A force in a direction to separate the deflection and the intermediate portion of the lid-like body from the other open end portion may be generated. On the other hand, since the front end portion of the lid-like body is locked to the frame body while forming a step in a direction orthogonal to the width direction of the band portion, the middle portion of the lid-like body and the other open end portion The force in the direction in which the lid is separated presses the step surface on the frame body side forming the step and the step surface on the lid body side, and the lid body rotates to the open side with respect to the frame body. (The closed state of the lid-like body is released) is restricted by the step. Therefore, even when tightened firmly, the wire binding tool with excellent reliability capable of stably maintaining the binding state.

  The outer peripheral wall surface region can be set on the outer surface side of the frame body near the other open end located on the outer surface side of the band portion, but is located on the other end side in the width direction of the band portion. It may be the outer surface side of the intermediate side wall portion of the frame body. Further, the step surface at the tip of the lid-like body forming the step and the step surface of the frame body are not only the step surface in the thickness direction of the band portion but also the step surface in the length direction of the band portion. There may be. Further, the stepped surface at the front end of the lid-like body and the stepped surface of the frame body main body are inclined with respect to the direction orthogonal to the bandwidth direction or formed into irregularities to provide a mutual locking function. You may make it raise.

  In the electric wire binding tool according to the present invention, the convex portion protruding outward from the other open end of the frame body within the outer peripheral wall surface region of the frame body, and the convex and concave engagement with the convex portion. It is good to have the recessed part formed in the said front-end | tip part of the said lid-like body.

  In this case, when a force in a direction separating the intermediate portion from the other open end is generated with respect to the lid body and the frame body, the outer wall surface of the convex portion forming the step and the inner wall surface of the concave portion are pressed against each other. Thus, the lid body is restricted from rotating to the open side with respect to the frame body. In addition, it is preferable to form a concave portion penetrating the tip of the lid-like body so that the engaging portion between the convex portion and the concave portion can be easily seen from the outside.

  In the electric wire binding tool according to the present invention, the tip end portion of the lid-like body, the one open end portion of the frame body main body, and the other open end portion are each formed in a plate shape, A thin wall formed between the frame main body and the base end portion of the lid-like body so as to be thinner than the frame body main body and the base end portion of the lid-like body so as to allow the rotation of the lid-like body. A portion is formed, and the front end portion of the lid-like body approaches the outer peripheral wall surface region so as to engage with the frame body while forming a step in a direction orthogonal to the width direction of the band portion. And at least one of the tip end portion of the lid-like body and the other open end portion of the frame body main body is bent in the plate thickness direction, and the tip end portion of the lid-like body is the band with respect to the frame body main body. Of the lid when engaged while forming a step in a direction perpendicular to the width direction of the portion. At least one of said other open end of the frame body and the serial tip may be configured to elastically recover to the thickness direction.

  In this case, even before binding, the front end of the lid-like body is securely engaged with the frame body while forming a step in a direction perpendicular to the width direction of the band, and the engagement state is securely maintained. Is done. Therefore, the lock portion of the wire binding tool can be closed in advance before the binding work, and can be handled in the same manner as a normal wire binding tool, so that workability is good.

  According to the present invention, there is provided an electric wire binding tool that can release a binding state, has good workability in a binding operation, and can stably maintain the binding state even when tightened firmly. be able to.

It is a perspective view which shows an example of the electric wire binding state of the electric wire binding tool which concerns on one embodiment of this invention. FIG. 1 shows an example of a wire binding state of the wire binding tool shown in FIG. 1, a part showing an engagement portion between a locking uneven portion of a band portion and a locking claw of the lock portion when the lid of the lock portion is opened. It is a perspective view containing a cross section. It is a principal part front view containing the partial cross section of the electric wire binding tool which concerns on one embodiment of this invention, Comprising: It is a figure which shows the state which open | released the cover-like body of the lock part. It is a principal part front view containing the partial cross section of the electric wire binding tool which concerns on one embodiment of this invention, Comprising: It is a figure which shows the state which closed the cover-like body of the lock part.

  Next, embodiments for carrying out the present invention will be described with reference to the drawings.

(One embodiment)
1 to 4 show an electric wire binding tool according to an embodiment of the present invention.

  First, the configuration of the present embodiment will be described.

  As shown in FIG. 1, the electric wire binding tool 10 of this embodiment is comprised as a binding band which binds the electric wire group W of the wire harness with which a vehicle is equipped.

  The wire binding tool 10 is made of, for example, a resin such as polypropylene or nylon, and has a binding band portion 11 and a lock portion 12 that are coupled to each other.

  The electric wire group W is, for example, a plurality of insulated covered electric wires, but may include a ground wire or an exterior material. Moreover, you may include in part some wire materials (for example, optical fiber etc.) other than an electric wire.

  As shown in FIGS. 2 and 3, the binding band portion 11 is integrally coupled to the lock portion 12 at a base end portion 11 a that is one end side in the length direction, and the other end side in the length direction. It is inserted into the lock portion 12 from the tip portion 11b.

  The band portion 11 has a high tensile strength in the length direction, but has flexibility that can be easily bent at least in the thickness direction with respect to the lock portion 12.

  The band portion 11 is formed with a plurality of engaging irregularities 11e at a predetermined pitch in the length direction on one side within a predetermined range in the length direction. It is designed to be locked.

  As shown in FIG. 4, the lock portion 12 includes a frame body 20 in which an insertion hole 20 a into which the base end portion 11 a of the band portion 11 is integrally coupled and the band portion 11 is inserted from the distal end portion 11 b side is formed. , And a locking claw 25 disposed in the frame 20 so as to engage with the locking uneven portion 11e of the band portion 11 so as to be able to be removed. The locking claw 25 is supported by the frame body 20 on the insertion port side of the insertion hole 20a of the frame body 20, and extends obliquely into the insertion hole 20a, and the band portion 11 on the outlet side of the insertion hole 20a. The other end portion 25b that is displaceable in the thickness direction, and a locking uneven portion 25e that has a substantially sawtooth cross section corresponding to the locking uneven portion 11e of the band portion 11 are provided.

  When the band part 11 is inserted into the lock part 12, the locking claw 25 allows the band part 11 to be inserted into the lock part 12 while being bent in the thickness direction of the band part 11, while the lock part 12. The return to the direction opposite to the insertion direction of the band part 11 with respect to can be controlled.

  That is, the electric wire binding tool 10 can lock the band portion 11 in a locked state inside the lock portion 12 to bind the electric wire group W of the wire harness.

  It is to be noted that such a locking claw 25 (lock claw) and the locking irregularity shape of the band portion 11 may be any known one.

  On the other hand, the frame body 20 has a substantially U-shaped frame body 21 opened at one end side in the width direction of the band portion 11 (right side in FIG. 3), and a frame body at one end side in the width direction of the band portion 11. And a lid-like body 22 having a base end portion 22a rotatably coupled to one open end portion 21a of the main body 21.

  A locking claw 25 is supported on the inner side of the frame body 21, and the base end portion 11 a of the band portion 11 is integrally coupled to the outer side of the frame body 21.

  The lid-like body 22 has an intermediate portion 22 b that is close to the end surface 21 d of the other open end portion 21 b of the frame body 21 on one end side in the width direction of the band portion 11. The intermediate portion 22b can approach and be separated from the other open end portion 21b of the frame body 21 by rotation at the base end portion 22a of the lid-like body 22.

  Moreover, the front-end | tip part 22c connected with the intermediate part 22b of the cover-like body 22 is the outer peripheral side of the frame 20, and the outer peripheral wall surface spaced apart from the end surface 21d of the one end side of the width direction of the band part 11 among the frame main bodies 21. Within the region Z, the frame body 21 is locked while forming a step Ld in a direction orthogonal to the width direction of the band portion 11.

  Specifically, in the outer peripheral wall surface region Z of the frame body 21, the other open end 21 b of the frame body 21 is formed with a convex portion 21 p protruding outward (upward in FIG. 3). In addition, a fitting hole portion 22h (concave portion) is formed in the tip portion 22c of the lid-like body 22 to be fitted (concave / concave engagement) with the convex portion 21p.

  More specifically, when the force in the direction separating the intermediate portion 22b of the lid-like body 22 from the other open end 21b of the frame body 21 is generated in the lid-like body 22 and the frame body 21, the band portion 11 The outer wall surface 21t of the convex portion 21p that forms the step Ld in the direction orthogonal to the width direction and the inner wall surface 22t on the tip side of the fitting hole portion 22h (inner wall surface of the concave portion) are in pressure contact with each other, so that the lid 22 is Rotation to the open side with respect to the frame body 21 is restricted. For this purpose, the distal end portion 22c of the lid-like body 22 has an inner wall surface 22t on the distal end side from the fitting hole portion 22h to be fitted into the convex portion 21p, and the convex portion 21p is open to the other side. An outer wall surface 21t is provided on the side surface far from the end surface 21d of the end portion 21b.

  Moreover, the front-end | tip part 22c of the lid-shaped body 22, the one open end part 21a of the frame main body 21, and the other open end part 21b are each formed in flat form.

  Further, between the frame body 21 and the base end portion 22 a of the lid-like body 22, the one open end 21 a of the frame body 21 and the lid-like body 22 are allowed to allow the lid body 22 to rotate. A thin portion 23 which is thinner than the base end portion 22a is formed as a hinge coupling portion.

  For example, as shown in FIG. 3, the thin-walled portion 23 has a predetermined depth when the one open end 21 a of the frame body 21 and the base end 22 a of the lid-like body 22 are in an initial open state substantially parallel to each other. A groove 23n having a substantially V-shaped cross section is formed, and the thin portion 23 is formed into a linear constriction shape.

  The lid-like body 22 is shown in FIG. 4 from an initial open state (molded shape) substantially parallel to one open end 21a of the frame body 21 as shown in FIG. As described above, the frame body 21 can be rotated to a closed state substantially orthogonal to the one open end 21a.

  When the distal end portion 22c of the lid-like body 22 rotates in the closing direction with respect to the frame body main body 21 while approaching the convex portion 21p of the frame body main body 21, the distal end portion 22c of the lid-like body 22 and the frame body main body 21 are rotated. At least one of the other open end portion 21b of each of the two, for example, both bend in the plate thickness direction, and then the convex portion 21p and the fitting hole portion 22h are fitted simultaneously with the band in the frame body 20. The step 11 is engaged while forming a step Ld in a direction perpendicular to the width direction of the portion 11.

  The direction orthogonal to the width direction of the band portion 11 here refers to the thickness direction (vertical direction in FIGS. 3 and 4) of the band portion 11 inserted into the insertion hole 20 a of the frame body 20 and the band portion. 11 is a length direction (a direction perpendicular to the paper surface in FIGS. 3 and 4).

  When the tip 22c having the fitting hole 22h of the lid 22 is engaged with the convex 21p of the frame body 21 while forming a step in the direction perpendicular to the width direction of the band 11, the lid 22c At least one of the front end portion 22c of the body 22 and the other open end portion 21b of the frame body 21 is elastically recovered in the thickness direction, for example.

  Next, the operation of this embodiment will be described.

  In the electric wire binding device 10 of the present embodiment configured as described above, when the band portion 11 is inserted into the lock portion 12 from the distal end portion 11b side as shown in FIG. 1, the locking uneven portion 11e. Is locked to the locking claw 25 of the lock portion 12.

  Then, as shown in FIG. 1, the band portion 11 is bound to the middle portion in the length direction so as to be inserted into the lock portion 12 so that tension is applied from the distal end portion 11b side. It becomes a state.

  In this state, the tension associated with the binding of the wire group W acts on the band portion 11, but the locking uneven portion 11 e of the band portion 11 may be detached from the locking claw 25 on the outer surface 11 f of the band portion 11. It is regulated in the vicinity of the other open end portion 21b of the adjacent frame body 21, and the locked state of the band portion 11 with respect to the lock portion 12 is maintained. In addition, the frame body 21 and the lid-like body 22 extend over both sides of the two wall surfaces 21t and 22t forming the step Ld, surround the four sides of the band portion 11, and lock the ends of each other. Therefore, the locked state is also maintained.

  At this time, the frame body 20 is bent by an upward force applied to the other open end 21b of the frame body 21 in the figure, and the force in a direction to separate the intermediate portion 22b of the lid-like body 22 from the other open end 21b. Can occur. However, since the opening / closing direction (left-right direction in FIG. 4) of the lid-like body 22 is different from the direction of stress acting on the frame body 20 from the band portion 11 (upward direction in FIG. 4), the lid-like body 22 is unexpectedly moved. It won't open.

  That is, in the electric wire binding tool 10 of the present embodiment, the distal end portion 22 c of the lid-like body 22 is locked to the frame body 21 while forming a step Ld in a direction orthogonal to the width direction of the band portion 11. Accordingly, the force in the direction of separating the intermediate portion 22b of the lid-like body 22 and the other open end 21b from the outer wall surface 21t that is the step surface on the frame body 21 side that forms the step Ld and the lid-like body 22 side. And the inner wall surface 22t, which is the step surface, is in pressure contact, and the step Ld restricts the lid body 22 from rotating to the open side with respect to the frame body 21 (the lid body can be closed). The

  Therefore, even when the band portion 11 is tightened to such an extent that a large tension is applied, the binding device is excellent in reliability capable of stably maintaining the binding state.

  Further, in this embodiment, when a force in a direction separating the intermediate portion 22b from the other open end portion 21b is generated with respect to the lid-like body 22 and the frame body main body 21, the convex portion 21p of the frame body 21 and the lid-like body Since the distal end portion 22c of the body 22 presses the side surfaces separated from the end surface 21d of the frame main body 21, the rotation of the lid-like body 22 toward the open side is reliably restricted.

  Moreover, since the fitting hole 22h penetrating the tip 22c of the lid-like body 22 is formed so that the engaging portion between the convex portion 21p and the fitting hole 22h is easily visible from the outside, the lid-like body The workability of closing 22 is good.

  On the other hand, for example, when there is some error in the binding work, or when it is necessary to unbind the electric wire group W by the electric wire binder 10 and rebind it in order to cope with the specification change, etc. The tip 22c of 22 is lifted in the direction of lifting relative to the frame body 21.

  At this time, the locking state of the distal end portion 22c of the lid-like body 22 with respect to the convex portion 21p of the frame body 21 is released, and the lid-like body 22 can be easily rotated to the open side, and the band portion 11 is locked. The uneven part 11e can be easily detached from the engaging uneven part 25e of the engaging claw 25. As a result, the binding state of the wire group W by the wire binding tool 10 can be easily solved and reused.

  In the present embodiment, when the distal end portion 22c of the lid-like body 22 approaches the outer peripheral wall surface region Z so as to engage with the frame body 21 while forming a step in a direction orthogonal to the width direction of the band portion 11. At least one of the distal end portion 22 c of the lid-like body 22 and the other open end portion 21 b of the frame body 21 is bent in the thickness direction, and the distal end portion 22 c of the lid-like body 22 is a band portion with respect to the frame body 21. 11 when engaging with forming a step in a direction perpendicular to the width direction of at least one of the tip 22c of the lid 22 and the other open end 21b of the frame body 21 in the plate thickness direction. Elastic recovery.

  Therefore, even in the state before binding, the front end portion 22c of the lid-like body 22 can be reliably engaged with the frame body 21 while forming a step in a direction perpendicular to the width direction of the band portion 11, and the engagement state Is securely held. Accordingly, the lock portion 12 of the wire binding tool 10 can be closed in advance before the binding work, and can be handled in the same manner as a normal wire binding tool, so that the workability is good. Become.

  Thus, in this embodiment, the bundling state can be released, the bundling workability is good, and the wire bundling is excellent in reliability that can stably maintain the bundling state even when tightened firmly. A tool 10 can be provided.

  In the above-described embodiment, the concave / convex engagement direction of the distal end portion 22c of the lid-like body 22 and the frame body 21 is the thickness direction of the band portion 11, but in the insertion hole 20a of the frame body 20 It may be the length direction of the band portion 11 in FIG.

  Further, the outer peripheral wall surface area Z is set on the outer surface side of the other open end portion 21 b of the frame body 21 in FIG. 3, but the frame body 21 located on the other end side in the width direction of the band portion 11. The intermediate wall portion 21e may be set on the outer surface 21f side. In this case, the outer surface 21f of the intermediate side wall portion 21e of the frame body 21 and the inner surface (no reference numeral) of the front end portion 22c of the lid-like body 22 that contacts the step form a step in a direction perpendicular to the bandwidth direction. Can be a face.

  Further, the step surface 22t on the distal end portion 22c side and the step surface 21t on the frame body 21 side of the lid-like body 22 are inclined with respect to a direction orthogonal to the bandwidth direction or formed as uneven surfaces, It is also preferable to enhance the mutual locking function between the tip 22c of the cylindrical body 22 and the frame body 21.

  Furthermore, the wire binding tool of the present invention is not limited to one made entirely of polypropylene, nylon or other resin, but may be made partially of metal.

  As described above, the present invention is capable of releasing the bundling state, has good workability in the bundling work, and has excellent reliability for stably holding the bundling state even when tightened firmly. The present invention can provide a tool, and is useful for all wire binding tools capable of binding a wire harness of a wire harness and releasing the binding state.

DESCRIPTION OF SYMBOLS 10 Electric wire binding tool 11 Band part 11a Base end part 11b Tip part 11e Locking uneven part 12 Lock part 20 Frame body 20a Insertion hole 21 Frame body 21a One open end part 21b The other open end part 21d End surface (band part) End face in the width direction)
21p convex part 21t outer wall surface (step surface on the frame body side)
22 Lid 22a Base end 22b Intermediate 22c Tip 22h Fitting hole 22t Inner wall surface (inner wall surface of recess, step surface on the lid)
23 Thin part 25 Locking claw

Claims (3)

A band part for bundling in which a plurality of engaging irregularities are formed at a predetermined pitch in the length direction, and a frame body in which the base end of the band part is integrally coupled and the band part is inserted from the front end; And a lock portion having a locking claw disposed in the frame so as to be able to be engaged with the locking uneven portion, and the band portion is held in the locking portion inward. An electric wire binding tool that locks and binds the wire group of the wire harness,
The frame body supports the locking claws, the base end of the band portion is integrally coupled, and is opened at one end side in the width direction of the band portion, and the band body, A base end portion rotatably coupled to one open end portion of the frame body at one end side in the width direction of the portion, and the one end side in the width direction of the band portion by rotation at the base end portion. A lid-like body having an intermediate portion that can be approached and separated from the other open end of the frame body.
In the outer peripheral wall surface region which is the outer peripheral side of the frame body and is separated from the end surface on the one end side in the width direction of the band portion in the frame main body, the distal end portion of the lid-like body connected to the intermediate portion, An electric wire binding tool which is locked to the frame body while forming a step in a direction perpendicular to the width direction of the band portion.   A convex portion projecting outward from the other open end of the frame body within the outer peripheral wall surface region of the frame body, and a front end portion of the lid-like body so as to engage with the convex portion It has the formed recessed part, The wire binding tool of Claim 1 characterized by the above-mentioned. The distal end portion of the lid-like body, the one open end portion and the other open end portion of the frame main body are each formed in a plate shape,
A thin wall formed between the frame main body and the base end portion of the lid-like body so as to be thinner than the frame body main body and the base end portion of the lid-like body so as to allow the rotation of the lid-like body. Part is formed,
When the distal end portion of the lid-like body approaches the outer peripheral wall surface region so as to engage with the frame body while forming a step in a direction orthogonal to the width direction of the band portion, the lid-like body At least one of the front end portion and the other open end portion of the frame body is bent in the plate thickness direction, and the front end portion of the lid-like body is orthogonal to the width direction of the band portion with respect to the frame body. At least one of the tip end portion of the lid-like body and the other open end portion of the frame body is elastically recovered in the plate thickness direction when engaged while forming a step in the direction. The electric wire binding tool according to claim 1 or 2.

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