JP5150411B2 - Connector with cover - Google Patents

Description

  The present invention relates to a connector with a cover provided with a cover that covers and protects an electric wire drawn from a connector housing.

  As this type of connector with cover, there is one shown in FIG. 17 (see, for example, Patent Document 1).

  As shown in FIG. 17, the connector with cover 1 is attached to the connector housing 2 that houses the terminal 4 connected to the one end 3 a of the electric wire 3, and is pulled out from the connector housing 2. And a lever 5 that is assembled so as to straddle the cover 5 in the width direction.

A wire fixing portion 6 having a substantially gate-shaped cross section for fixing the electric wire 3 by fastening the electric wire 3 with a binding band 8 protrudes from the electric wire outlet port 5a through which the electric wire 3 of the cover 5 is led out. A pair of band insertion holes 6a and 6a through which the binding band 8 is inserted are formed at the corners on both sides of the wire fixing portion 6. Then, the binding band 8 is wound around the electric wire fixing portion 6, and the electric wire 3 is fastened and fixed to the electric wire fixing portion 6 with the binding band 8.
JP 2002-343497 A Japanese Patent Laid-Open No. 8-50952

  However, in the conventional connector 1 with a cover, a clearance is generated between the connector housing 2 and the cover 5 and the cover 5 is inclined or easily opened, and the cover 5 is easily dropped from the connector housing 2. Further, since the plurality of electric wires 3 are simply brought into contact with the inner surface of the electric wire fixing portion 6 having a substantially gate-shaped cross section of the cover 5, the adhesion (holding force) between the electric wire fixing portion 6 and the electric wires 3 is weak. The electric wire 3 was easy to come off from the electric wire fixing part 6.

  Accordingly, the present invention has been made to solve the above-described problems, and can eliminate the clearance between the lock of the connector housing and the cover, and can increase the adhesion between the wire fixing portion of the cover and the wire to fix the wire. It is an object of the present invention to provide a connector with a cover that can reliably prevent an electric wire from coming off from a section.

  The invention according to claim 1 is a connector housing for accommodating a terminal connected to an end of an electric wire, and a cover attached to the connector housing and guiding the electric wire drawn out from the connector housing to the outside while guiding it. Provided with a wire fixing portion for fastening and fixing the electric wire with a binding band at an electric wire outlet for leading the electric wire to the outside of the cover, and forming a band insertion hole for inserting the binding band into the electric wire fixing portion In the attached connector, the connector housing is formed with a locked portion in which a lock portion formed on the cover main body of the cover is detachably locked, while the cover main body has the connector housing side and the wire outlet side. It is formed in an open box shape, and it is a lock plate that prevents the cover body from opening through one hinge on both sides of the cover body. A pair of engaging portions that are engaged with a pair of engaging portions formed on both sides of the cover main body are formed on both sides of the locking lock plate. When the locking portion is locked to the pair of engaging portions of the cover body, the locked portion of the connector housing is pressed and urged against the locking portion of the cover body by at least one locking portion of the pair of locking portions. It is characterized by having constituted so.

  A second aspect of the present invention is the connector with a cover according to the first aspect, wherein at least one engaging portion of the pair of engaging portions of the locking lock plate is in contact with the locked portion of the connector housing. A surface is formed.

  A third aspect of the present invention is the connector with a cover according to the first aspect, wherein a plurality of loose ribs are formed on a side portion of the cover main body.

  As described above, according to the first aspect of the present invention, when the pair of locking portions of the locking lock plate are locked to the pair of engaging portions of the cover main body, at least one of the pair of locking portions. The locking part of the connector housing is configured to press and urge the locked part of the connector housing against the locking part of the cover body, eliminating the clearance between the locked part of the connector housing and the locking part of the cover body. Can be reliably prevented. As a result, the opening of both sides of the cover body can be completely prevented, and the adhesion between the electric wire fixing part of the cover and the electric wire can be increased, and the electric wire from the electric wire fixing part can be surely prevented. Can do.

  According to the second aspect of the present invention, the tapered portion of the connector housing is formed with the tapered surface with which at least one engaging portion of the pair of engaging portions of the locking stopper plate abuts. Thus, the locked portion of the connector housing can be easily and surely pressed and urged to the lock portion of the cover body by at least one of the pair of locking portions of the locking lock plate.

  According to the invention of claim 3, since the plurality of loose ribs are formed on the side portion of the cover body, it is possible to reliably prevent the backlash between the connector housing and the side portion of the cover body. As a result, the opening of both sides of the cover body can be completely prevented, and the adhesion between the electric wire fixing part of the cover and the electric wire can be increased, and the electric wire from the electric wire fixing part can be surely prevented. Can do.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 is a perspective view of a connector with a cover according to a first embodiment of the present invention as viewed from the cover side, FIG. 2 is a perspective view with a cover removed from the connector with a cover, FIG. 3 is a perspective view of the cover, and FIG. Is a front view of the cover, FIG. 5 is a perspective view showing a state in which the cover is attached to the connector with the cover, FIG. 6 is a partial perspective view showing a state before the cover locking plate is attached, and FIG. FIG. 8A is an enlarged explanatory view of the main part showing the state before the cover locking plate is mounted, and FIG. 8B is the same. FIG. 9 is a partial sectional view showing a state in which the electric wire is fixed to the electric wire fixing portion of the cover with a binding band, and FIG. 10 is an electric wire fixing portion of the cover. The part where the electric wire was fixed with the cable tie on the back side FIG. 11 is an enlarged explanatory view of the locking stopper plate, FIG. 12 is a perspective view of the binding band, and FIG. 13A is binding to a pair of band through holes on one side of the wire fixing portion of the cover. FIG. 13B is an operation explanatory diagram for fixing the electric wire by passing the binding band through the pair of band through holes on the other side of the electric wire fixing portion.

  As shown in FIGS. 1 and 5, the connector with cover 10 includes a connector housing 11 made of synthetic resin that accommodates a terminal (not shown) connected to one end portion 13 a of the electric wire 13, and a shaft portion 23 on the connector housing 11. And a synthetic resin lever 20 which is rotatably supported by the connector housing 11 to fit a mating connector (not shown) to the connector housing 11 with a low insertion force, and is detachably attached to the connector housing 11. And a cover 30 made of synthetic resin that guides the electric wire 13 drawn from the outside and guides it to the outside.

  As shown in FIGS. 1 and 2, the connector housing 11 is formed in a box shape having a terminal accommodating portion 11a for accommodating a plurality of terminals. As shown in FIGS. 1, 2 and 8A and 8B, the upper and lower positions on both sides of the terminal accommodating portion 11a are hook-shaped locking claws (lock portions) 31b of the cover 30 described later. Are respectively formed with arm-like locking claws (locked portions) 11b that are detachably locked.

  A waterproof plug 14 for sealing is fitted into one end 13a of the electric wire 13 connected to each terminal accommodated in the terminal accommodating portion 11a. Further, as shown in FIG. 9, the plurality of electric wires 13 drawn out from the connector housing 11 are directly fixed to the electric wire fixing portion 35 of the cover 30 to be described later by the binding band 40, but FIG. As shown in FIG. 2, the cable 30 may be fixed to the electric wire fixing portion 35 of the cover 30 with the binding band 40 while being bundled with a tape (not shown) and inserted through the corrugated tube 15 made of rubber or the like. The corrugated tube 15 has grooves 15a and protrusions 15b formed alternately and continuously, and has elasticity.

  As shown in FIGS. 1, 2, and 5, the lever 20 is formed in a U shape with an operation portion 21 and both side portions 22 and 22. The lever 20 is rotatably supported on both side surfaces 11c and 11c of the connector housing 11 via shafts 23 formed on both side portions 22.22. Further, cam grooves 24 are formed on both side portions 22 and 22 of the lever 20, respectively. Then, each cam pin protruding from both side surfaces of the mating connector is engaged with each cam groove 24 of the lever 20 and slides, whereby the connector housing 11 and the mating connector can be inserted with a low insertion force by the cam action. It is designed to be fitted.

  As shown in FIGS. 1 to 3, the cover 30 is an elongated dome-shaped (box-shaped) cover body having an opening on the lower surface (connector housing 11) side and the wire outlet port 34 side for leading the wires 13 to the outside. 31. A hook-shaped (L-shaped) locking claw (lock portion) that is detachably attached to each locking claw 11 b of the connector housing 11 at both ends of both side portions 31 a and 31 a of the elongated dome-shaped cover body 31. 31b is formed.

  As shown in FIGS. 3 and 3, a pair of loose ribs 31 e and 31 e are integrally formed at the center of both side portions 31 a and 31 a of the cover body 31. Further, a pair of loose ribs 31f and 31f are integrally formed at both end edges of both side portions 31a and 31a of the cover main body 31, respectively.

  As shown in FIGS. 1 and 3 to 5, an opening stopper lock plate 33 is integrally formed on one side 31 a of the cover body 31 via a hinge portion 32. The locking lock plate 33 is formed in a U shape by a plate-like lock body 33a and L-shaped hook-shaped hook portions (locking portions) 33b and 33b formed integrally on both sides of the lock body 33a. It is. The hinge portion 32 is formed integrally with the one hook portion 33b. Then, as shown in FIGS. 7 and 8B, when the pair of hook portions 33b, 33b of the locking stopper plate 33 is locked to the pair of engaging recesses 31c, 31c of the cover body 31, the pair of hook portions 33b, 33b is locked. The hook claw 11b of the connector housing 11 is pressed and urged to the hook claw 31b of the cover main body 31 by one of the hook parts 33b and 33b. Further, as shown in FIGS. 8A and 8B, the locking claw 11 b of the connector housing 11 is tapered so that one hook portion 33 b of the pair of hook portions 33 b and 33 b of the locking stopper plate 33 abuts. A surface 11d is formed.

  As shown in FIG. 12, press-fitting ribs 33 c are integrally formed on the inner side of the pair of hook portions 33 b and 33 b of the locking lock plate 33. Then, as shown in FIGS. 6 and 7, the locking lock plate 33 is bent via the hinge portion 32 so as to straddle both side portions 31 a and 31 a of the cover body 31, and the pair of hook portions 33 b and 33 b are covered. By engaging engagement recesses (engagement portions) 31c and 31c formed on both side portions 31a and 31a of the main body 31, the opening of both side portions 31a and 31a of the cover main body 31 is prevented. At this time, the ribs 33c of the hook portions 33b can completely prevent the side portions 31a and 31a of the cover main body 31 from being opened by eliminating backlash.

  Further, as shown in FIGS. 1 and 3 to 5, an electric wire for fixing the plurality of electric wires 13 by fastening them with a binding band 40 at an electric wire outlet 34 through which the plural electric wires 13 of the cover body 31 are led out. The fixing portion 35 is formed so as to project integrally. The wire fixing portion 35 is formed in an inverted U shape in cross section. On both sides of the outer surface 35a of the electric wire fixing portion 35 having an inverted U-shaped cross section, a pair of protrusions 36 and 36 are integrally formed so as to be parallel to a direction orthogonal to the direction in which the electric wire 13 is led out. Between the pair of protrusions 36 and 36 of the electric wire fixing portion 35 having an inverted U-shaped cross section, the band insertion holes 37 and 37 ′ are arranged with respect to the lead-out direction of the electric wire 13 so that the binding band 40 can be wound around. Each pair is formed so as to be diagonal and parallel. Then, the binding band 40 is inserted into the pair of band insertion holes 37, 37 or 37 ', 37' on one side of the pair of band insertion holes 37, 37 and 37 ', 37' parallel to each other. Thus, the binding band 40 is wound in an oblique direction with respect to the lead-out direction of the electric wire 13, and the plurality of electric wires 13 are tightened with the binding band 40 on the inner surface 35 b side of the electric wire fixing portion 35 having an inverted U-shaped cross section. It is configured to be fixed.

  Further, as shown in FIGS. 3 and 4, a plurality of wire holding protrusions 38, 38, 38 are integrally formed in an arc shape on the inner surface 35b of the wire fixing portion 35 having an inverted U-shaped cross section. is there. The tip of each of the wire holding projections 38 is formed in a concavo-convex shape (the concave portion of the concavo-convex shape is indicated by reference numeral 38a and the convex portion is indicated by reference numeral 38b).

  As shown in FIGS. 1, 9, 10, and 12, the binding band 40 includes a band main body 41 having a plurality of flange portions 41 a on the inner surface, and a hook portion at an arbitrary position through the band main body 41. And a square frame-shaped lock portion 42 that detachably holds 41a.

  According to the cover-equipped connector 10 of the above-described embodiment, as shown in FIGS. The respective locking claws 31b as the lock portions of the 30 cover main bodies 31 are locked. Next, as shown in FIGS. 6 and 7, a pair of hook portions 33 b and 33 b of the locking lock plate 33 formed integrally with one side portion 31 a of the cover main body 31 via the hinge portion 32 are connected to the cover main body 31. Are engaged with a pair of engaging recesses 31c and 31c on both side portions 31a and 31a. At this time, as shown in FIG. 8 (b), the engagement claw 11 b of the connector housing 11 is engaged with the cover body 31 of the cover 30 by one hook portion 33 b of the pair of hook portions 33 b, 33 b of the locking stopper plate 33. It presses and biases the pawl 31b. Thereby, the clearance between the latching claw 11b of the connector housing 11 and the latching claw 31b of the cover main body 31 can be eliminated, and the play in the Z direction shown in FIG. 8A can be reliably prevented. Further, through the tapered surface 11d formed on the locking claw 11b of the connector housing 11, the locking claw 11b of the connector housing 11 is covered with one hook portion 33b of the pair of hook portions 33b, 33b of the locking lock plate 33. The pressing claw 31b of the main body 31 can be easily pressed and urged. As a result, it is possible to reliably prevent the opening of the both side portions 31a and 31a of the cover main body 31, and it is possible to eliminate rattling by the ribs 33c of the hook portions 33b. As a result, the opening of both side portions 31a and 31a of the cover main body 31 can be completely prevented.

  Further, the backlash between the connector housing 11 and the both side portions 31a, 31a of the cover body 31 is ensured by a pair of loosely-filled ribs 31e, 31e integrally formed at the center of both side portions 31a, 31a of the cover 30. Both can be prevented and fixed. In addition, the pair of loose ribs 31f and 31f integrally formed on both end edges of both sides 31a and 31a of the cover body 31 of the cover 30 opens the both sides 31a and 31a of the cover body 31 (inclination in all directions). ) And the backlash between the side portions 31a and 31a of the connector housing 11 and the cover main body 31 can be reliably prevented. Thus, even when a load is applied to the electric wire 13, the cover 30 is unlikely to be detached from the connector housing 11, and the cover 30 can be reliably prevented from falling off. That is, it is possible to completely prevent the side portions 31a and 31a of the cover main body 31 of the cover 30 from being opened, and to increase the degree of adhesion between the wire fixing portion 35 of the cover 30 and the electric wire 13, and the wire fixing portion 35. It is possible to reliably prevent the wire from coming out of the cable.

  Next, as shown in FIGS. 1, 9, and 10, the plurality of electric wires 13 are fixed via the binding band 40 in the electric wire fixing portion 35 having an inverted U-shaped cross section of the cover 30. At this time, as shown in FIGS. 13A and 13B, each pair of band insertion holes formed in each pair of the wire fixing portion 35 so as to be oblique and parallel to the direction in which the wires 13 are led out. A binding band 40 is inserted through a band gun 45 into a pair of band insertion holes 37, 37 or 37 ', 37' on either one of 37, 37 and 37 ', 37'. The plurality of electric wires 13 are fastened and fixed by the binding band 40 on the inner surface 35b side of the electric wire fixing portion 35 having an inverted U-shaped cross section.

  As shown in FIGS. 13A and 13B, in order to prevent the band gun 45 from interfering with the connector 10 with cover when the plurality of electric wires 13 are tightened with the binding band 40 by the band gun 45. The band gun 45 can be used from either the left or right position with respect to the connector 10 with cover. That is, a pair of band insertion holes 37, 37 and 37 ', 37' through which the binding band 40 is inserted are formed in the wire fixing portion 35 of the cover 30. As a result, the binding band 40 can be easily wound around the outer surface 35a of the electric wire fixing portion 35 having an inverted U-shaped cross section in an oblique direction with respect to the direction in which the electric wire 13 is led out, and the electric wire fixing having an inverted U-shaped cross section is possible. The degree of adhesion between the inner surface 35b of the portion 35 and the electric wire 13 can be increased, and the electric wire can be reliably prevented from coming off from the inner surface 35b of the electric wire fixing portion 35.

  As described above, when the plurality of wires 13 are fixed to the wire fixing portion 35 of the cover 30 with the slanting binding band 40, the pair of wire holding protrusions 38 integrally formed on the inner surface 35 b of the wire fixing portion 35. , 38, and the concave and convex portions 38a and 38b and the plurality of electric wires 13 of the protruding portions 38 of the electric wire fixing portion 35 by causing the covering insulation portions of the plural electric wires 13 to bite into the concave portions 38a and the convex portions 38b of the electric wire fixing portion 35. The degree of close contact (contact area) between the wires can be increased, and the disconnection of the wires from the inner surface 35b of the wire fixing portion 35 can be more reliably prevented.

  Even if the pulling force of the electric wires 13 acts in the direction in which the plural electric wires 13 are led out, the concave portions, the convex portions 38 a and 38 b of the electric wire holding projections 38 of the electric wire fixing portion 35 and the plural electric wires 13. Since the pressing force acts in a concentrated manner in the point contact area with the covering insulation portion, it is possible to reliably prevent the wire from coming off from the inner surface 35b of the wire fixing portion 35.

  In addition, according to the said 1st Embodiment, although the case where the some electric wire 13 was directly fixed to the electric wire fixing | fixed part 35 of the cover 30 with the binding band 40 was shown, as shown in FIG. You may fix through the binding band 40 in the state penetrated by the corrugated tube 15. FIG. When fixing the corrugated tube 15 in which the plurality of wires 13 are inserted into the wire fixing portion 35 of the cover 30 with the slanting binding band 40, the pair of wire holding members integrally formed on the inner surface 35b of the wire fixing portion 35 is provided. The groove portions 15a of the corrugated tube 15 in which the plurality of electric wires 13 are inserted into the concave portions 38a and the convex portions 38b of the protrusion portions 38 and 38 are bitten by a plurality of point contacts, so that the concave portions of the protrusion portions 38 of the electric wire fixing portion 35 are recessed. The degree of adhesion (contact area) between the grooves 15a of the corrugated tube 15 through which the convex portions 38a, 38b and the plurality of electric wires 13 are inserted can be increased, and the wire can be more reliably removed from the inner surface 35b of the electric wire fixing portion 35. Can be prevented.

  FIG. 15 is a perspective view of a cover according to the second embodiment of the present invention, and FIG. 16 is a front view of the cover.

  In the cover 30 ′ of the second embodiment, the cover main body 31 is integrally formed obliquely (downward in the figure) with an electric wire fixing portion 35 that fixes and fixes the plurality of electric wires 13 with the binding band 40 to the cover main body 31. The paths of the plurality of electric wires 13 led out from the electric wire outlet 34 are different from those of the cover 30 of the first embodiment. Since other configurations are the same as those in the above-described embodiment, the same reference numerals are given to the same components, and the description thereof is omitted.

  In the cover 30 ′ of the second embodiment, the pair of hook portions 33 b and 33 b of the locking lock plate 33 are also connected to the pair of engaging recesses 31 c and the cover main body 31 in the same manner as the cover 30 of the first embodiment. When latched to 31c, the latching claw 11b of the connector housing 11 can be pressed and urged against the latching claw 31b of the cover body 31 by one hook part 33b of the pair of hook parts 33b, 33b. Thereby, the clearance between the latching claw 11b of the connector housing 11 and the latching claw 31b of the cover main body 31 can be eliminated, and rattling of both of them can be reliably prevented. As a result, it is possible to completely prevent the side portions 31a and 31a of the cover body 31 from being opened, and to increase the degree of adhesion between the wire fixing portion 35 and the wire 13 of the cover 30 '. Can be reliably prevented.

It is the perspective view which looked at the connector with a cover of a 1st embodiment of the present invention from the cover side. It is a perspective view in the state where a cover was removed from the above-mentioned connector with a cover. It is a perspective view of the said cover. It is a front view of the said cover. It is a perspective view which shows the state which attached the cover to the said connector with a cover. It is a fragmentary perspective view which shows the state before mounting | wearing with the locking lock plate of the said cover. It is a fragmentary perspective view which shows the state which mounted | wore with the said lock stopper plate. (A) is an enlarged explanatory view of a main part showing a state before the cover lock plate of the cover is mounted, and (b) is an enlarged explanatory view of a main part showing a state where the cover lock plate is mounted. It is a fragmentary sectional view which shows the state which fixed the electric wire with the binding band to the electric wire fixing part of the said cover. It is the fragmentary perspective view which looked at the state which fixed the electric wire with the binding band to the electric wire fixing part of the said cover from the back side. It is an expansion explanatory view of the above-mentioned lock stopper plate. It is a perspective view of the said binding band. (A) is an operation explanatory view of fixing a wire by passing a binding band through a pair of band through holes on one side of the wire fixing portion of the cover, and (b) is a pair of wires on the other side of the wire fixing portion. It is operation | work explanatory drawing which makes a band pass through a band through-hole, and fixes an electric wire. It is a fragmentary sectional view which shows the state which fixed the corrugated tube which made the electric wire fixed part of the said cover penetrate the electric wire with the binding band. It is a perspective view of the cover of 2nd Embodiment of this invention. It is a front view of the cover of the said 2nd Embodiment. It is a side view of the conventional connector with a cover.

Explanation of symbols

10 Connector with cover 11 Connector housing 11b Locking claw (locked part)
11d Tapered surface 13 Electric wire 13a One end (end)
30 Cover 31 Cover body 31a, 31a Both sides 31b Locking claw (lock part)
31c, 31c A pair of engaging recesses (engaging portions)
31e, 31f Ragged ribs 32 Hinge portion 33 Unlocking lock plate 33b, 33b A pair of hook portions (locking portions)
34 Wire outlet 35 Wire fixing part 37, 37 Pair of band insertion holes 37 ', 37' Pair of band insertion holes 40 Binding band

Claims (3)

A connector housing for accommodating a terminal connected to an end of the electric wire; and a cover attached to the connector housing and guiding the electric wire drawn out from the connector housing to the outside while guiding the electric wire. In the connector with cover, in which a wire fixing portion for fastening and fixing the electric wire with a binding band is provided at the electric wire outlet port that leads the outside to the outside, and a band insertion hole for inserting the binding band into the electric wire fixing portion is formed.
The connector housing forms a locked portion in which a lock portion formed on the cover body of the cover is detachably locked, while the cover body is opened in the connector housing side and the wire outlet side. And a locking lock plate is integrally formed on one side of both sides of the cover body via a hinge portion, and a pair of the locking lock plates formed on both sides of the cover body on both sides of the locking lock plate. A pair of locking portions that are locked to the engaging portions are formed, and the pair of locking portions when the pair of locking portions of the locking lock plate are locked to the pair of engaging portions of the cover body. A connector with a cover, wherein at least one of the locking portions presses and urges the locked portion of the connector housing against the lock portion of the cover body. The connector with a cover according to claim 1,
A connector with a cover, wherein a tapered surface on which at least one engaging portion of the pair of engaging portions of the locking stopper plate abuts is formed on the locked portion of the connector housing. The connector with a cover according to claim 1,
A connector with a cover, wherein a plurality of loose ribs are formed on a side portion of the cover body.

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