JP2016116347A - Protector and wire with protector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress backlash of an insertion side engaging part within a reception side engaging part.SOLUTION: A protector comprises: a main body part including a first main body part (e.g., a lid part 28) and a second main body part (e.g., a housing part 24) which can be combined; an insertion side engaging part 30 which is provided in the first main body part so as to protrude closer to the second main body part and includes an engaging protrusion 36 in a front end; and a reception side engaging part 40 which is provided in the second main body part, with which an insertion hole 42h in which the insertion side engaging part 30 can be inserted is formed and to which the engaging protrusion 36 can be engaged in the state where the insertion side engaging part 30 is inserted into the insertion hole 42h. In one of the insertion side engaging part 30 and the reception side engaging part 40, a recess 32 is formed which includes a pair of inward side surfaces 32a being opposite in a width direction of the insertion side engaging part 30. In the other of the insertion side engaging part 30 and the reception side engaging part 40, the engaging protrusion 36 is formed which is disposed within the pair of inward side surfaces 32a of the recess 32 in the state where the insertion side engaging part 30 is engaged to the reception side engaging part 40.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a technique for protecting a wire harness.

  Patent document 1 is disclosing the protector provided with the wire harness accommodating body and the lid | cover. The wire harness housing is formed with a female lock having a gap, and the lid is formed with a male lock inserted into the female lock. And the state where the lid | cover was closed to the wire harness accommodating body is maintained by the male lock being stuck in the male lock, and the front-end | tip part being hooked on the female lock.

JP 2014-183690 A

  However, according to the technique disclosed in Patent Document 1, if the width of the male lock is narrowed or the gap of the female lock is widened due to a manufacturing error or the like, the male lock may be largely rattled in the female lock. There is.

  Then, an object of this invention is to suppress the shakiness of the insertion side latching | locking part in a receiving side latching | locking part.

  In order to solve the above problems, a first aspect is a protector for protecting an electric wire, and includes a first main body portion and a second main body portion that can be combined, and the first main body portion and the second main body portion, A main body part that forms an accommodation space capable of accommodating an electric wire between them in a united state, and a projection that is provided on the first main body part so as to protrude toward the second main body part, and a locking protrusion on the tip part And an insertion hole formed in the second main body portion into which the insertion side locking portion can be inserted, and the insertion side locking portion is inserted into the insertion hole. A receiving-side locking portion that can lock the locking protrusion in a state where the insertion-side locking portion is engaged with one of the insertion-side locking portion and the receiving-side locking portion in the width direction of the insertion-side locking portion. A concave portion having a pair of inwardly facing side surfaces is formed, and the insertion portion is inserted into the other of the insertion side locking portion and the receiving side locking portion. In a state where the engaging portion is engaged with the receiving-side engaging portion, in which projections are disposed in a pair of inwardly side of the recess is formed.

  A 2nd aspect is a protector which concerns on a 1st aspect, Comprising: The said recessed part is formed in the one main surface of the said insertion side latching | locking part, and the said protrusion is formed in the said receiving side latching | locking part It is.

  A 3rd aspect is a protector which concerns on a 2nd aspect, Comprising: It is the one main surface of the said insertion side latching | locking part, Comprising: The said recessed part is located in the base end side of the said insertion side latching | locking part rather than the said latching protrusion. And is inserted into the insertion hole toward the insertion direction of the insertion side locking portion as the protrusion at the end of the receiving side locking portion on the insertion direction side of the insertion side locking portion. In addition, an elastic locking projection that inclines toward the inside of the concave portion of the insertion side locking portion protrudes, and in the state where the insertion side locking portion is locked to the receiving side locking portion, the elastic The locking projections are locked to the locking projections and are disposed in the pair of inward side surfaces of the recess.

  A 4th aspect is a protector which concerns on a 3rd aspect, Comprising: The space | interval dimension of the clearance gap at the front end side of the said elastic latching protrusion is the base end side of the said latching protrusion among the said insertion side latching parts. It is set smaller than the thickness dimension of the part.

  The electric wire with a protector according to a fifth aspect includes the protector according to any one of the first to fourth aspects and an electric wire accommodated in the main body.

  According to the first aspect, since the insertion side latching portion is inserted into the insertion hole, both sides of the insertion side latching portion abut against both sides of the insertion hole, thereby inserting the receiving side latching portion. The rattling of the side locking portion is suppressed. At the same time, the protrusion formed on the other of the insertion-side locking portion and the receiving-side locking portion also comes into contact with the pair of inwardly facing side surfaces of the recess, so that the insertion-side locking portion has a backlash against the receiving-side locking portion. Stickiness is suppressed. For this reason, even if the width dimension of the receiving side locking part becomes small or the width dimension of the insertion hole becomes large due to a manufacturing error or the like, the projecting part hits the pair of inward side surfaces of the concave part. By contact, rattling of the insertion side locking portion with respect to the receiving side locking portion is suppressed. Thereby, the shakiness of the insertion side latching | locking part in a receiving side latching | locking part can be suppressed.

  According to the 2nd aspect, since the recessed part is formed in the insertion side latching | locking part, a deformation | transformation of a receiving side latching | locking part can be suppressed. For this reason, the locked state of the insertion side locking part and the receiving side locking part can be maintained more reliably.

  According to the third aspect, the insertion hole in the insertion direction side of the insertion side locking portion as the protrusion at the end of the insertion side locking portion on the insertion direction side of the receiving side locking portion. In the state where the elastic locking projection that inclines toward the concave portion of the insertion side locking portion inserted into the projection is provided, and the insertion side locking portion is locked to the receiving side locking portion, Since the elastic locking projections are locked to the locking projections, the insertion side locking portion can be more securely locked. In addition, since the elastic locking projections are also disposed in the pair of inward side surfaces of the recesses, rattling of the insertion side locking portions with respect to the receiving side locking portions can be suppressed with a simple configuration.

  According to the fourth aspect, since the clearance gap on the distal end side of the elastic locking projection is smaller than the thickness dimension of the proximal end portion of the locking projection among the insertion side locking portions, the elastic engagement The stop protrusion is more securely locked to the locking protrusion.

  According to the 5th aspect, an electric wire can be protected by the protector with little shakiness.

It is a general | schematic disassembled perspective view of an electric wire with a protector. It is a front view which shows the state before the latching of an insertion side latching | locking part and a receiving side latching | locking part. It is the III-III sectional view taken on the line of FIG. It is a front view which shows the latching state of an insertion side latching | locking part and a receiving side latching | locking part. It is the VV sectional view taken on the line of FIG. It is the VI-VI sectional view taken on the line of FIG. It is a front view which shows the latching state of the insertion side latching | locking part which concerns on a modification, and a receiving side latching | locking part.

  Hereinafter, the protector and the electric wire with the protector according to the embodiment will be described. FIG. 1 is a schematic exploded perspective view of an electric wire with a protector.

  The protector-equipped electric wire 10 includes an electric wire 12 and a protector 20.

  Here, the protector-equipped electric wire 10 includes a plurality of electric wires 12. The plurality of electric wires 12 are accommodated in the protector 20 in a bundled state. In addition, in FIG. 1, the whole form in which the some electric wire 12 was bundled is shown. The plurality of electric wires 12 may be branched inside or outside the protector 20. An optical fiber cable may be bundled together with the electric wire 12.

  A terminal is attached to the end of the electric wire 12, and the terminal is inserted into the connector. By connecting the connector to a connector on the side of various electric devices in a vehicle or the like, the various electric devices are electrically connected via the protector-equipped electric wire 10. That is, the protector-equipped electric wire 10 is used as a wiring member in a vehicle.

  The protector 20 protects the intermediate portion in the longitudinal direction of the electric wire 12, and includes a main body portion 22, an insertion side locking portion 30, and a receiving side locking portion 40.

  The main body portion 22 includes a lid portion 28 as a first main body portion and an accommodating portion 24 as a second main body portion. And the accommodating space which can accommodate the electric wire 12 between them is formed when the accommodating part 24 and the cover part 28 unite | combine.

  Here, the accommodating part 24 is a member formed by injecting molten resin into an injection mold, and has an elongated plate-like bottom part 24a and a pair of side wall parts erected on both sides of the bottom part 24a. 24b, and is formed in a square hook shape that opens at both ends and opposite to the bottom 24a. Both end portions of the bottom portion 24a protrude outward from the end portions of the side wall portions 24b. And while the longitudinal direction intermediate part of the electric wire 12 is accommodated in the accommodating part 24, the both end side part is extended to the both ends side outward of the accommodating part 24. As shown in FIG. At both ends of the accommodating portion 24, the electric wire 12 is fixed to the accommodating portion 24 by binding an adhesive tape or a binding band to both ends of the electric wire 12 and the bottom portion 24 a.

  The lid portion 28 is a member formed by injecting molten resin into an injection mold, and is formed in an elongated plate shape that can close the opening on the side opposite to the bottom portion 24a in the housing portion 24. . And the lid | cover part 28 closes the opening on the opposite side to the bottom part 24a among the accommodating parts 24, is united with the accommodating part 24, and can be accommodated in the extending direction intermediate part of the electric wire 12. A housing space is formed.

  But the cover part may be formed in the shape of a square hook. Moreover, when several electric wires branch in the middle, the opening etc. for drawing out the said branch part may be formed in the accommodating part or the cover part. Moreover, the accommodating part and the cover part may be bent on the way.

  The lid portion 28 is provided with an insertion side locking portion 30, and the receiving portion 24 is provided with a receiving side locking portion 40. Here, a plurality (three in this case) of receiving-side locking portions are provided on the upper edge portions of the outer surfaces of the pair of side wall portions 24b of the accommodating portion 24 at intervals along the extending direction of the upper edge portions. 40 is provided. In addition, a plurality of (here, three) insertion side locking portions 30 are provided at intervals along the extending direction of both side edges of the lid portion 28.

  In addition, since the accommodating part 24 and the cover part 28 are made into the separate structure here, the receiving side latching | locking part 40 or the insertion side latching | locking part 30 is provided in each both sides. However, even if the housing portion and the lid portion are integrally formed with a mold, and one side portion of the housing portion and one side portion of the lid portion are connected so as to be openable and closable via a hinge portion made of a thin resin. Good. In such a case, a receiving side latching part or an insertion side latching part should just be provided only in the other side part of a storage part, and the other side part of a cover part. Here, the insertion side locking portion 30 is provided in the lid portion 28 and the receiving side locking portion 40 is provided in the housing portion 24, but this is not necessary. The lid portion may be regarded as the second main body portion, the receiving side locking portion may be provided on the lid portion, the receiving portion may be regarded as the first main body portion, and the insertion side locking portion may be provided on the receiving portion. .

  2 is a front view showing a state before the insertion side locking portion 30 and the receiving side locking portion 40 are locked, FIG. 3 is a sectional view taken along line III-III in FIG. 2, and FIG. FIG. 5 is a front view showing a locking state of the stopper 30 and the receiving side locking part 40, FIG. 5 is a sectional view taken along line VV in FIG. 4, and FIG. 6 is a sectional view taken along line VI-VI in FIG. .

  The insertion side locking portion 30 is provided so as to protrude toward the housing portion 24 with respect to the lid portion 28, and the locking protrusion 36 is provided at the tip portion. More specifically, the insertion side locking portion 30 is formed in a rectangular plate shape extending from the edge of the lid portion 28 in a direction orthogonal to the lid portion 28. A concave portion 32 is formed in the outward portion which is the one main surface side portion of the insertion side locking portion 30. Here, the concave portion 32 is formed at the center in the width direction of the outward portion of the insertion side locking portion 30 so as to extend along the insertion direction P of the insertion side locking portion 30 with respect to the receiving side locking portion 40. It is formed in a bottomed groove shape. The pair of inward side surfaces 32 a of the recess 32 extend linearly along the insertion direction P of the insertion side locking portion 30 with respect to the receiving side locking portion 40, and face each other in the width direction of the insertion side locking portion 30. ing. The concave portion 32 is formed on the proximal end side of the insertion side locking portion 30 with respect to a locking protrusion 36 described below.

  A locking protrusion 36 that protrudes outwardly from the receiving-side locking portion 40 with respect to the bottom surface of the recess 32 is formed at the leading edge of the receiving-side locking portion 40. The distal end portion of the receiving side locking portion 40 of the locking projection 36 is inclined inward toward the distal end side of the receiving side locking portion 40, and the insertion side locking portion 30 is connected to the receiving side locking portion. 40 can be easily inserted. In addition, the proximal end portion of the receiving side locking portion 40 of the locking protrusion 36 is formed on a locking surface 36 f that is orthogonal to the receiving side locking portion 40 and closes the distal end side of the recess 32. Yes. And the elastic latching protrusion 46 (after-mentioned) of the receiving side latching | locking part 40 latches to the latching surface 36f in the state arrange | positioned in the recessed part 32. As shown in FIG.

  The receiving side locking part 40 is provided at the upper end part of the side wall part 24 b of the accommodating part 24. The receiving side latching part 40 is provided with the enclosure part 42 which forms the insertion hole 42h on the outer side of the side wall part 24b.

  The enclosure part 42 is provided with a pair of side parts 43 provided at intervals and a connecting part 44 for connecting the pair of side parts 43 at a position spaced from the outer surface of the side wall part 24b. The distance dimension between the pair of side parts 43 is set larger (slightly larger) than the width dimension of the insertion side locking part 30. Further, the distance dimension between the outer surface of the side wall part 24 b and the connecting part 44 is set to be larger (slightly larger) than the thickness dimension of the insertion side locking part 30. The insertion hole 42h is surrounded by the outer surface of the side wall portion 24b and the surrounding portion 42, and opens to the proximal end side and the distal end side of the side wall portion 24b. And the insertion side latching | locking part 30 can be inserted in the insertion hole 42h from the upper direction of the enclosure part 42. FIG. In the state where the insertion side locking part 30 is inserted into the insertion hole 42h, a gap is formed between the side part of the insertion side locking part 30 and the inner surface of the side part 43 (see FIG. 5). The dimension D1 of the gap is set to a size for ensuring insertion workability of the insertion side locking portion 30 with respect to the insertion hole 42h in consideration of manufacturing errors of the insertion side locking portion 30 and the insertion hole 42h. The

  Further, an elastic locking protrusion 46 is formed as a protrusion at the end of the connecting portion 44 of the surrounding portion 42 on the insertion direction P side of the insertion side locking portion 30. The elastic locking projection 46 is inclined toward the insertion direction P into the recess 32 of the insertion side locking portion 30 in the insertion hole 42h (that is, toward the side wall 24b). The base end portion of the elastic locking projection 46 is continuous with the enclosure 42, but both sides of the elastic locking projection 46 are separated from the enclosure 42 via the slits S. For this reason, the elastic locking projection 46 can be elastically deformed inward and outward of the insertion side locking portion 30 with the base end portion as a support location.

  In addition, the clearance dimension L1 of the clearance on the distal end side of the elastic locking projection 46 (that is, the clearance dimension L1 between the distal end portion of the elastic locking projection 46 and the side wall portion 24b) is the elasticity of the insertion side locking portion 30. It is set smaller than the thickness dimension L2 of the base end side portion of the locking protrusion 46 (that is, the thickness dimension L2 of the portion where the recess 32 is formed) (see FIG. 3).

  Then, when the insertion side locking portion 30 is inserted into the insertion hole 42h of the receiving side locking portion 40, the elastic locking projection 46 comes into contact with the inclined surface on the tip side of the locking projection 36, and the elastic locking projection 46 is elastically deformed to the side away from the side wall 24b. When the insertion side locking portion 30 is inserted into the insertion hole 42h until the distal end portion of the elastic locking projection 46 gets over the locking projection 36, the elastic locking projection 46 is elastically restored to its original shape. Accordingly, the distal end portion of the elastic locking projection 46 is disposed in the pair of inward side surfaces 32 a of the recess 32 and closer to the proximal end side of the insertion side locking portion 30 than the locking projection 36. . As a result, the distal end portion of the elastic locking projection 46 is locked to the locking projection 36, and the insertion side locking portion 30 is locked to the receiving side locking portion 40. The lid portion 28 is attached to the housing portion 24 by the above-described locking with respect to all combinations of the insertion side locking portions 30 and the receiving side locking portions 40.

  At this time, since the distance between the pair of inward side surfaces 32 a is set larger than the width of the elastic locking projection 46, the tip of the elastic locking projection 46 is a pair of inward side surfaces of the recess 32. A gap is formed between the side surface of the elastic locking projection 46 and the inwardly facing side surface 32a facing the elastic locking projection 46 in the state of being disposed in the 32a (see FIG. 5). The dimension D2 of the gap is large enough to allow the elastic locking projections 46 to be easily and reliably disposed in the concave portions 32 in consideration of manufacturing errors of the concave portions 32 and the elastic locking projections 46. Set to

  According to the protector 20 and the protector-equipped electric wire 10 configured as described above, the insertion side locking portion 30 with respect to the receiving side locking portion 40 in a state where the insertion side locking portion 30 is inserted and locked into the receiving side locking portion 40. The backlash of 30 in the width direction is regulated by the following two modes.

  First, rattling is suppressed when both side portions of the insertion side locking portion 30 abut against both side portions of the insertion hole 42 h, that is, the inner surfaces of the pair of side portions 43. The degree of suppression of rattling by this portion is determined by the size of the distance dimension D1 between the side portion of the insertion side locking portion 30 and the side portion 43.

  Second, rattling is suppressed when both side portions of the distal end portion of the elastic locking projection 46 abut against the pair of inward side surfaces 32 a of the recess 32. The degree of suppression of rattling by this portion is determined by the size of the distance dimension D2 between the side portion of the distal end portion of the elastic locking projection 46 and the inward side surface 32a.

  When viewed as a whole, the degree of shakiness in the width direction of the insertion side latching portion 30 relative to the receiving side latching portion 40 is determined by the smaller one of the distance dimensions D1 and D2. For this reason, temporarily, the width dimension of the receiving side latching | locking part 40 becomes small by manufacturing error etc., or the width dimension of the insertion hole 42h becomes large, and the space | interval dimension D1 is larger than the space | interval dimension D2. Even if the size of the elastic locking projection 46 is increased, the both sides of the distal end portion of the elastic locking projection 46 abut against the pair of inward side surfaces 32a of the recess 32, so that rattling is suppressed. Thereby, it becomes possible to suppress the shakiness of the insertion side latching | locking part 30 in the receiving side latching | locking part 40. FIG.

  Moreover, since the recessed part 32 is formed in the insertion side latching | locking part 30, it is not necessary to form a dent in the receiving side latching | locking part 40. FIG. For this reason, a deformation | transformation of the receiving side latching | locking part 40 can be suppressed, and the latching state of the insertion side latching | locking part 30 and the receiving side latching | locking part 40 can be maintained more reliably.

  Further, an elastic locking projection 46 is formed at the tip of the receiving side locking portion 40, and the elastic locking projection 46 is in a state where the elastic locking projection 46 is locked to the receiving side locking portion 40. 46 is secured to the locking projection 36 and is disposed between the pair of inward side surfaces 32 a of the recess 32. For this reason, the insertion side latching | locking part 30 can be latched and latched more reliably. At the same time, the elastic locking projections 46 are disposed in the pair of inward side surfaces 32a and function as a configuration that suppresses rattling as described above. For this reason, rattling of the insertion side latching | locking part 30 with respect to the receiving side latching | locking part 40 can be effectively suppressed with a simple structure.

  Further, since the elastic locking projection 46 is configured to be elastically deformed and locked to the locking projection 36 with respect to the surrounding portion 42, the insertion side locking portion 30 is inserted when the insertion side locking portion 30 is inserted. There is also an advantage that a sufficient amount of elastic deformation can be secured.

  In addition, since the interval dimension L1 between the distal end portion of the elastic locking projection 46 and the side wall portion 24b is set smaller than the thickness dimension L2 of the portion where the recess 32 is formed in the insertion side locking portion 30, In a state where the elastic locking projection 46 is disposed in the recess 32, the elastic locking projection 46 abuts against the bottom of the recess 32 so as to press the insertion side locking portion 30 against the side wall portion 24b. Become. For this reason, the elastic locking projection 46 is more reliably locked to the locking projection 36. Moreover, the insertion side latching | locking part 30 becomes difficult to rattle in the thickness direction in the insertion hole 42h.

  And according to the electric wire 10 with a protector provided with this protector 20, there is little shakiness of the insertion side latching | locking part 30 and the receiving side latching | locking part 40, Therefore, the property excellent in silence is shown.

  In addition, in the said embodiment, although the recessed part 32 was formed in the receiving side latching | locking part 40 and the structure which provided the elastic latching protrusion 46 as a protrusion in the insertion side latching | locking part 30 is disclosed, this structure is not necessarily required Need not be.

  In the modification shown in FIG. 7, the insertion-side locking portion 130 corresponding to the insertion-side locking portion 30 has the recess 32 omitted, and instead, the insertion-side locking portion 130 is formed at the center in the width direction of the outer surface. It is set as the structure in which the protruding protrusion 132 was formed along the insertion direction.

  Further, the receiving side locking portion 140 corresponding to the receiving side locking portion 40 is located at the center in the width direction of the elastic locking projection 146 corresponding to the elastic locking projection 46 from the distal end side to the proximal end side. The slit-shaped recess 147 is formed so as to cut in the direction.

  The width dimension of the protrusion 132 is set smaller than the width dimension of the recess 147.

  And the protrusion 132 is arrange | positioned in the recessed part 147 in the state which locked the front-end | tip part of the elastic latching protrusion 146 to the latching protrusion 36 of the front end side of the insertion side latching | locking part 130 like a removal. . In this state, both sides of the protrusion 132 abut against a pair of inwardly facing side surfaces 147a of the concave portion 147, thereby suppressing rattling of the insertion side locking portion 130 with respect to the receiving side locking portion 140. For this reason, as in the case of the above-described embodiment, rattling is suppressed.

  In the embodiment and the modification, one of the recess and the protrusion is formed in a portion of the side wall facing the insertion hole, and the other of the recess and the protrusion is a side wall of the insertion side locking portion. It may be formed in a portion facing the surface.

  Further, it is not essential that the elastic locking projections 46 and 146 are formed. In this case, what is necessary is just to provide the protrusion which can be arrange | positioned in a recessed part inside the connection part 44 of a receiving side latching | locking part.

  As described above, the present invention has been described in detail. However, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.

P Insertion direction 10 Electric wire with protector 12 Electric wire 20 Protector 22 Body portion 24 Storage portion 28 Lid portion 30, 130 Insertion side locking portion 32, 147 Recessed portion 32a, 147a Inward side surface 36 Locking protrusion 40, 140 Receiving side locking Part 42h insertion hole 46,146 elastic locking protrusion 132 protrusion

Claims (5)

A protector for protecting the electric wire,
A main body portion that includes a first main body portion and a second main body portion that can be combined, and in which the first main body portion and the second main body portion are combined to form an accommodation space capable of accommodating an electric wire therebetween; ,
An insertion side locking portion provided on the first main body portion so as to protrude toward the second main body portion and having a locking protrusion at the tip;
An insertion hole is formed in the second main body portion and into which the insertion side locking portion can be inserted, and the locking protrusion is engaged with the insertion side locking portion inserted into the insertion hole. A receiving side locking portion that can be stopped;
With
A recess having a pair of inward side surfaces facing each other in the width direction of the insertion side locking portion is formed on one of the insertion side locking portion and the receiving side locking portion,
On the other side of the insertion side locking part and the receiving side locking part, the insertion side locking part is disposed in a pair of inwardly facing side surfaces of the concave part in a state where the insertion side locking part is locked to the receiving side locking part. The protector is formed with protrusions. The protector according to claim 1,
The protector which the said recessed part is formed in the one main surface of the said insertion side latching | locking part, and the said protrusion is formed in the said receiving side latching | locking part. The protector according to claim 2,
The concave portion is formed on one of the main surfaces of the insertion side locking portion and on the proximal end side of the insertion side locking portion from the locking protrusion.
The insertion side inserted into the insertion hole toward the insertion direction of the insertion side locking portion as the protrusion at the end of the insertion side locking portion on the insertion direction side of the insertion side locking portion An elastic locking projection that inclines toward the concave portion of the locking portion is provided,
In a state where the insertion side locking portion is locked to the receiving side locking portion, the elastic locking projections are locked to the locking projections and disposed in a pair of inwardly facing side surfaces of the recess. A protector. The protector according to claim 3,
The protector whose space | interval dimension of the front end side of the said elastic latching protrusion is smaller than the thickness dimension of the base end side part of the said latching protrusion among the said insertion side latching | locking parts. The protector according to any one of claims 1 to 4,
An electric wire housed in the main body,
Electric wire with protector.

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