JP4013741B2 - Wiring locking mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a wiring locking mechanism for locking a wiring.
[0002]
[Prior art]
As a holder for a wire harness, for example, there is one that the holder holds in a state in which the wire harness is accommodated in a substantially cylindrical corrugated tube (see, for example, Patent Document 1).
[0003]
In this wire harness holder, a plurality of troughs are formed on the outer periphery of the corrugated tube, the plurality of troughs are arranged at equal intervals in the axial direction of the corrugated tube, and each trough is arranged around the corrugated tube. Arranged in the whole direction. As a result, the corrugated tube has a so-called bellows shape, and damage from the other components to the wire harness is reduced by the corrugated tube.
[0004]
The holder is substantially cylindrical, and the wire harness is held via the corrugated tube by inserting the corrugated tube into the holder. A substantially annular plate-shaped rib is provided in the holder, and the movement of the corrugated tube in the axial direction relative to the holder is restricted by inserting the rib into the trough portion of the corrugated tube.
[0005]
A biting protrusion is provided in the holder, and the biting protrusion bites into the outer periphery of the corrugated tube, whereby the rotation of the corrugated tube relative to the holder is restricted.
[0006]
However, in such a wire harness retainer, when the corrugated tube has a shape variation (tolerance) or the number of wire harnesses (cross-sectional area or housing density) accommodated in the corrugated tube, When the force changes, the biting force of the biting protrusion on the outer periphery of the corrugated tube may change.
[0007]
For this reason, it is preferable that the rotation of the corrugated tube relative to the holder can be reliably regulated even when the corrugated tube has a variation in shape or the reaction force of the corrugated tube changes.
[0008]
[Patent Document 1]
Japanese Utility Model Publication No. 1-96724 [0009]
[Problems to be solved by the invention]
In view of the above fact, an object of the present invention is to obtain a wiring locking mechanism that can reliably restrict the rotation of the housing member relative to the insertion member.
[0010]
[Means for Solving the Problems]
Wire locking mechanism of claim 1 is cylindrical, and the housing member inside the wires are accommodated, has an insertion hole, an insertion member to which the housing member is inserted into the insertion hole, wherein a hook portion provided in the insertion member, previously provided in the housing member, and a target hook portion which rotation is restricted the accommodating member with respect to the insertion member by the hook portion is hooked, the insertion member Has a main body portion and a rotating portion that is rotatably supported only by the hooking portion with respect to the main body portion, and the rotating portion is rotated with respect to the main body portion, thereby The insertion hole can be opened and closed, and when the insertion hole is opened, the hook portion is extended so that the hook portion cannot be hooked on the hooked portion, and the rotation with respect to the main body portion is performed. By closing the insertion hole by turning the part It is possible to hook the hook portion on the object hook portion is characterized by.
[0011]
In the wiring locking mechanism according to claim 1, the wiring is locked in such a manner that the wiring is stored inside the cylindrical storage member and the storage member is inserted into the insertion hole of the insertion member. Yes.
[0012]
Here, the hooking portion provided in the insertion member is hooked on the hooked portion provided in advance in the housing member , whereby the rotation of the housing member relative to the insertion member is restricted. For this reason, rotation of the storage member relative to the insertion member can be reliably restricted.
[0014]
Furthermore , the insertion hole can be opened and closed by rotating the rotation portion with respect to the main body portion of the insertion member.
[0015]
Here, since the insertion hole is closed by the rotation of the rotation part with respect to the main body part, the hooking part can be hooked on the hooked part, so that the insertion member is inserted when the accommodating member is inserted into the opened insertion hole. It is possible to prevent or suppress the hooking portion from obstructing the insertion of the housing member into the insertion hole. Thereby, an accommodating member can be easily inserted in an insertion hole.
[0016]
According to a second aspect of the present invention, there is provided the wiring locking mechanism according to the first aspect , further comprising a restricting unit that restricts movement of the housing member in the axial direction with respect to the insertion member. Yes.
[0017]
In the wiring locking mechanism according to claim 2 , since the restricting means restricts the movement of the housing member in the axial direction relative to the insertion member, the rotation of the housing member relative to the insertion member and the movement in the axial direction are restricted. The movement of the housing member relative to the member can be restricted in all directions.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 6 is a perspective view of the wire harness holding mechanism 10 according to the embodiment configured by applying the wiring locking mechanism of the present invention.
[0019]
The wire harness holding mechanism 10 according to the present embodiment includes a corrugated tube 12 as a housing member. The corrugated tube 12 has a substantially cylindrical shape made of synthetic resin or the like, and a plurality of wire harnesses 14 as wirings are accommodated in the corrugated tube 12. Each wire harness 14 is covered with a cylindrical covering member 16 and accommodated in each covering member 16.
[0020]
On the outer periphery of the corrugated tube 12, a plurality of trough portions 18 (concave portions) having a quadrangular cross section constituting the regulating means are formed, and the plurality of trough portions 18 are arranged at equal intervals in the axial direction of the corrugated tube 12. Each trough 18 is disposed in the entire circumferential direction of the corrugated tube 12. Thereby, the corrugated tube 12 is made into what is called a bellows shape, and the damage from the other components to each wire harness 14 by the corrugated tube 12 is reduced.
[0021]
On the outer periphery of the corrugated tube 12, a plurality of (in the present embodiment, four) slits 20 (four recesses) having a triangular cross section as a hooked portion are formed. The plurality of slits 20 are arranged in the circumferential direction of the corrugated tube 12. The slits 20 are arranged at equal intervals along the axial direction of the corrugated tube 12. Further, the formation depth of each slit 20 is slightly shallower than the formation depth of each valley portion 18.
[0022]
A corrugated clamp 22 as an insertion member is provided outside the corrugated tube 12. The corrugated clamp 22 is substantially cylindrical and has an insertion hole 24 inside. The corrugated tube 12 is inserted into the insertion hole 24. Thereby, the plurality of wire harnesses 14 are held (locked) by the corrugated clamp 22.
[0023]
As shown in FIG. 1, a predetermined number of thin plate-like restricting plates 26 (ribs) constituting the restricting member are provided on the peripheral surface of the insertion hole 24 (two in the axial end portions of the insertion hole 24 in the present embodiment). The restriction plate 26 is provided along the circumferential direction in substantially the entire circumference of the insertion hole 24, and the inner peripheral end of the restriction plate 26 is generally circular as a whole. The inner peripheral side portion of the restricting plate 26 is gradually made thinner toward the inner peripheral end, and the inner peripheral portion of the restricting plate 26 is inserted into the valley portion 18 of the corrugated tube 12. Thereby, the movement to the axial direction of the corrugated tube 12 with respect to the corrugated clamp 22 is controlled.
[0024]
The corrugated clamp 22 is configured to include a main body portion 28 having a substantially C-shaped cross section and a rotating portion 30 having a substantially J-shaped cross section. Approximately half of the insertion hole 24 is formed. Further, the main body portion 28 and the rotating portion 30 are each provided with approximately half of the restriction plate 26.
[0025]
The corrugated clamp 22 has a hinge portion 32 as a hooking portion, and the hinge portion 32 has a substantially U-shaped thin plate shape (or a substantially V-shaped thin plate shape). One end of the hinge portion 32 is connected to the end of the body portion 28 on the side of the insertion hole 24, and the other end of the hinge portion 32 is connected to the end of the rotation portion 30 (end on the curved side) on the side of the insertion hole 24. The main body 28 and the rotating part 30 are connected by the hinge part 32. The hinge portion 32 protrudes into the insertion hole 24, and the hinge portion 32 is inserted into the slit 20 of the corrugated tube 12. For this reason, the rotation of the corrugated tube 12 in the circumferential direction with respect to the corrugated clamp 22 is restricted by the hinge portion 32 being caught by the slit 20. In addition, the hinge portion 32 can be deformed, so that the turning portion 30 can turn around the hinge portion 32 with respect to the main body portion 28.
[0026]
As shown in FIGS. 2 to 4, a rigid claw 34 is integrally provided at the center of the other end of the rotating unit 30, and the rigid claw 34 projects perpendicularly to the other end of the rotating unit 30. At the same time, the tip of the rigid claw 34 protrudes toward the insertion hole 24.
[0027]
A substantially rectangular cylindrical mounting cylinder 36 is integrally provided on the other end side of the main body 28, and the inner hole penetration direction of the mounting cylinder 36 is a direction perpendicular to the axial direction of the insertion hole 24. .
[0028]
An arrangement hole 38 is formed in the side wall of the attachment cylinder 36 on the side of the insertion hole 24, and the arrangement hole 38 is opened from one end of the attachment cylinder 36. An elastic claw 40 is provided in the arrangement hole 38, and the base end of the elastic claw 40 is integrated with the peripheral edge of the arrangement hole 38. The tip of the elastic claw 40 protrudes to the inside of the mounting cylinder 36 (on the side opposite to the insertion hole 24), and the portions other than the tip of the elastic claw 40 have elasticity. Here, while the tip of the elastic claw 40 is pressed against the tip of the rigid claw 34, the elastic claw 40 is elastically deformed, and the rigid claw 34 is inserted into the mounting tube 36 from one end side, and the tip of the rigid claw 34 is elastic. The insertion hole 24 is closed by being engaged (hooked) with the tip of the claw 40.
[0029]
Further, the insertion of the insertion hole 24 is made possible by releasing the engagement of the tip of the rigid claw 34 with the tip of the elastic claw 40 and turning the turning portion 30 relative to the main body portion 28. As a result, the corrugated tube 12 can be inserted into the insertion hole 24 and the corrugated tube 12 can be detached from the insertion hole 24.
[0030]
As shown in FIG. 2, the rotating portion 30 is in a state where the insertion hole 24 is opened to the maximum extent (the rigid claw 34 of the rotating portion 30 is maximally separated from the mounting cylinder 36). When rotated, as shown in FIG. 5A, the hinge portion 32 is extended in a substantially flat plate shape and does not protrude into the insertion hole 24. Further, when the rotating portion 30 is rotated with respect to the main body portion 28 with the insertion hole 24 being substantially half open, the hinge portion 32 has a curved plate shape (bent plate) as shown in FIG. And may protrude into the insertion hole 24 in a small manner. Further, as shown in FIG. 1, when the turning portion 30 is turned with respect to the main body portion 28 with the insertion hole 24 closed, the hinge portion 32 has a substantially cross-sectional view as shown in FIG. It is bent into a U-shaped plate (or a substantially V-shaped cross section) and protrudes greatly into the insertion hole 24.
[0031]
As shown in FIGS. 1 to 4, a mounting hole 42 is formed in the side wall of the mounting cylinder 36 on the side opposite to the insertion hole 24, and a mounting claw 44 is provided in the mounting hole 42. The base end of the mounting claw 44 is integrated with the peripheral edge of the mounting hole 42, and the mounting claw 44 is provided with a projection 46 that protrudes inside the mounting cylinder 36. Has elasticity.
[0032]
In the mounting cylinder 36, square columnar guide columns 48 are provided on both sides of the mounting hole 42 on the side wall on the side opposite to the insertion hole 24, and each guide column 48 extends to the other end of the mounting cylinder 36.
[0033]
As shown in FIG. 6, a flat fixed plate 50 is inserted into the mounting tube 36 between the pair of guide columns 48 from the other end side. When the fixing plate 50 is inserted into the mounting cylinder 36, the fixing plate 50 is guided by the pair of guide columns 48, and the protrusion 46 is pressed against the fixing plate 50, so that the mounting claw 44 is elastically deformed. Is done. The fixing plate 50 is fixed to the fixing member 52, and a fixing hole (not shown) is formed in the fixing plate 50, and a projection 46 of the mounting claw 44 is inserted into the fixing hole. Thus, the corrugated clamp 22 is fixed to the fixing member 52.
[0034]
Next, the operation of the present embodiment will be described.
[0035]
In the wire harness holding mechanism 10 having the above configuration, a plurality of wire harnesses 14 are housed inside a corrugated tube 12 having a substantially cylindrical shape.
[0036]
Further, in the corrugated clamp 22, after the corrugated tube 12 is inserted into the insertion hole 24 in a state where the engagement of the distal end of the elastic claw 40 with the distal end of the rigid claw 34 is released and the insertion hole 24 is opened, the rotating portion The corrugated tube 12 is inserted into the closed insertion hole 24 by rotating 30 about the hinge portion 32 with respect to the main body 28 and engaging the tip of the elastic claw 40 with the tip of the rigid claw 34. . Thereby, the plurality of wire harnesses 14 are held by the corrugated clamp 22 via the corrugated tube 12.
[0037]
In addition, the fixing plate 50 fixed to the fixing member 52 is inserted between the pair of guide pillars 48 in the mounting cylinder 36 of the corrugated clamp 22, and the fixing hole of the fixing plate 50 is inserted into the protrusion 46 of the mounting claw 44. As a result, the corrugated clamp 22 is fixed to the fixing member 52 via the fixing plate 50.
[0038]
Here, the hinge part 32 provided in the corrugated clamp 22 is hooked by the slit 20 previously provided in the corrugated tube 12, and the rotation to the circumferential direction of the corrugated tube 12 with respect to the corrugated clamp 22 is controlled. For this reason, when the shape variation (tolerance) arises in the corrugated tube 12, or when the reaction force of the corrugated tube 12 changes depending on the number of wire harnesses 14 (cross-sectional area or accommodation density) accommodated in the corrugated tube 12 However, the rotation of the corrugated tube 12 in the circumferential direction relative to the corrugated clamp 22 can be reliably restricted.
[0039]
Further, in the corrugated clamp 22, the rotating portion 30 is rotated around the hinge portion 32 with respect to the main body portion 28 and the insertion hole 24 is closed, so that the hinge portion 32 protrudes into the insertion hole 24, The hinge portion 32 can be hooked on the slit 20 of the corrugated tube 12. On the other hand, when the rotation part 30 is rotated about the hinge part 32 with respect to the main body part 28 and the insertion hole 24 is opened, the hinge part 32 can be prevented or suppressed from protruding into the insertion hole 24. . For this reason, when the corrugated tube 12 is inserted into the opened insertion hole 24, the hinge portion 32 can be prevented or suppressed from inhibiting the insertion of the corrugated tube 12 into the insertion hole 24, and the corrugated tube 12 is inserted into the insertion hole 24. Can be easily inserted.
[0040]
Further, the hinge part 32 connects the turning part 30 and the main body part 28 to permit the turning of the turning part 30 with respect to the main body part 28, and protrudes into the insertion hole 24 to corrugate tube with respect to the corrugated clamp 22. Since it has two roles of restricting 12 rotations, the number of parts can be reduced.
[0041]
Further, the restriction plate 26 of the corrugated clamp 22 is inserted into the valley portion 18 of the corrugated tube 12, so that the movement of the corrugated tube 12 in the axial direction with respect to the corrugated clamp 22 is restricted. For this reason, the rotation of the corrugated tube 12 in the circumferential direction and the movement in the axial direction with respect to the corrugated clamp 22 are restricted, and the movement of the corrugated tube 12 with respect to the corrugated clamp 22 can be restricted in all directions.
[0042]
In this embodiment, the corrugated clamp 22 (insertion member) is provided with the hinge portion 32 (hooking portion) and the corrugated tube 12 (housing member) is provided with the slit 20 (hooked portion). It is good also as a structure which provided the hooking part in the insertion member while providing the hooking part in the accommodating member.
[0043]
Furthermore, in this Embodiment, it was set as the structure which used the accommodating member as the corrugated tube 12, However, It is good also as a structure which abbreviate | omitted the corrugated tube as a covering member of the wiring member (wiring).
[0044]
【The invention's effect】
In the wiring locking mechanism according to the first aspect, since the rotation of the housing member relative to the insertion member is restricted by the hooking portion being hooked on the hooked portion, the rotation of the housing member relative to the insertion member can be reliably restricted. it can.
[0045]
Furthermore , since the hooking part can be hooked on the hooked part by closing the insertion hole by rotating the rotary part with respect to the main body part, the insertion of the housing member into the insertion hole in which the hooking part of the insertion member is opened is obstructed. This can be prevented or suppressed, and the housing member can be easily inserted into the insertion hole.
[0046]
In the wiring locking mechanism according to the second aspect, since the restricting means restricts the movement of the housing member relative to the insertion member in the axial direction, the movement of the housing member relative to the insertion member can be restricted in all directions.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a main part of a wire harness holding mechanism according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing a corrugated clamp in a state where an insertion hole is opened to a maximum extent in the wire harness holding mechanism according to the embodiment of the present invention.
FIG. 3 is a plan view showing a corrugated clamp in a state where an insertion hole is opened to a maximum extent in the wire harness holding mechanism according to the embodiment of the present invention.
FIG. 4 is a front view showing a mounting cylinder in a corrugated clamp of the wire harness holding mechanism according to the embodiment of the present invention.
FIG. 5 is a view showing a hinge part in a corrugated clamp of the wire harness holding mechanism according to the embodiment of the present invention, and FIG. 5 (A) shows the state of the hinge part when the insertion hole is opened to a maximum extent. It is sectional drawing which shows, (B) is sectional drawing which shows the state of the hinge part when an insertion hole is open | released substantially half, (C) is the state of the hinge part when an insertion hole is closed. It is sectional drawing shown.
FIG. 6 is a perspective view showing a wire harness holding mechanism according to an embodiment of the present invention.
[Explanation of symbols]
10 Wire harness holding mechanism (wiring locking mechanism)
12 Corrugated tube (housing member)
14 Wire harness (wiring)
18 valley (regulation means)
20 Slit (hooked part)
22 Corrugated clamp (insertion member)
24 Insertion hole 26 Restriction plate (regulation means)
28 Main body part 30 Rotating part 32 Hinge part (hook part)

Claims (2)

An accommodating member that is cylindrical and accommodates wiring therein;
An insertion member having an insertion hole, the insertion member being inserted into the insertion hole;
A hook provided on the insertion member ;
A hooked portion that is provided in advance in the housing member, and the hooking portion is hooked to restrict rotation of the housing member relative to the insertion member;
Equipped with a,
The insertion member includes a main body portion and a rotating portion that is rotatably supported only by the hook portion with respect to the main body portion, and the rotating portion is rotated with respect to the main body portion. And the insertion hole can be opened and closed,
In addition, when the insertion hole is opened, the hooking portion is extended so that the hooking portion cannot be hooked on the hooked portion, and the insertion hole is closed by rotation of the rotating portion with respect to the main body portion. By doing so, it becomes possible to hook the hook part to the hooked part,
A wiring locking mechanism characterized by that . The wiring locking mechanism according to claim 1, further comprising restriction means for restricting movement of the housing member in the axial direction with respect to the insertion member .

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