阅读说明：本技术 杠杆式连接器 (Lever type connector ) 是由 赤木洋介 于 2020-03-16 设计创作，主要内容包括：一种杠杆式连接器(10)包括：第一壳体(11)；壳体(20),其配合至第一壳体(11)并且从第一壳体(11)移除；以及杠杆(30),其被壳体(20)可转动地支撑,其中杠杆构造为配合两壳体(11、20)。杠杆(30)包括临时锁定臂部(36),其具有临时锁定部(36a),并且壳体(20)包括：临时被锁定部(25),其构造为临时配合至临时锁定臂部(36)的临时锁定部(36a)和从临时锁定部(36a)脱离；以及临时设定臂部(26),其构造为在杠杆(30)的临时锁定释放期间抑制第一壳体(11)与壳体(20)之间的脱离。第一壳体(11)包括释放肋部(13),其构造为释放临时锁定臂部(36)的临时锁定部(36a)与壳体(20)的临时被锁定部(25)之间的临时锁定状态。(A lever type connector (10) includes: a first housing (11); a housing (20) fitted to the first housing (11) and removed from the first housing (11); and a lever (30) rotatably supported by the housing (20), wherein the lever is configured to fit both housings (11, 20). The lever (30) includes a temporary locking arm portion (36) having a temporary locking portion (36a), and the housing (20) includes: a temporary locked portion (25) configured to be temporarily fitted to and detached from a temporary locking portion (36a) of the temporary locking arm portion (36); and a temporary setting arm portion (26) configured to suppress disengagement between the first housing (11) and the housing (20) during release of temporary locking of the lever (30). The first housing (11) includes a release rib (13) configured to release a temporarily locked state between the temporary locking portion (36a) of the temporary locking arm portion (36) and the temporary locked portion (25) of the housing (20).)

1. A lever type connector (10) comprising:

a first housing (11), the first housing (11) having a cam table (12);

a second housing (20), the second housing (20) being fitted to the first housing (11) and removed from the first housing (11); and

a lever (30) rotatably supported by the second housing (20) via a support shaft (23), the lever (30) having a cam groove (35) engaged with the cam boss (12), the lever (30) being configured to: pulling the first housing (11) toward the second housing (20) by a rotational operation from a temporary locking position to a fitting completion position with engagement between the cam groove (35) and the cam land (12) by the rotational operation, wherein the first housing (11) and the second housing (20) are fitted, wherein

The lever (30) includes a temporary locking arm portion (36) having a temporary locking portion (36a), the temporary locking arm portion (36) being elastically deformable,

the second housing (20) includes a temporarily locked portion (25) and a temporarily set arm portion (26), the temporarily locked portion (25) being configured to be temporarily locked to the temporarily locking portion (36a) of the temporarily locking arm portion (36) and disengaged from the temporarily locking portion (36a) of the temporarily locking arm portion (36), the temporarily set arm portion (26) being configured to suppress disengagement between the first housing (11) and the second housing (20) in a temporarily set state during release of temporary locking between the temporarily locking portion (36a) of the temporarily locking arm portion (36) and the temporarily locked portion (25) of the second housing (20), and

the first housing (11) includes a release rib (13), and the release rib (13) is configured to release a temporarily locked state between the temporary locking portion (36a) of the temporary locking arm portion (36) and the temporary locked portion (25) of the second housing (20).

2. A lever type connector (10) as claimed in claim 1, wherein

A temporary setting beak (14) provided on the lower surface of the release rib (13),

a protrusion (26a) is provided at a tip end portion of the temporary setting arm portion (26), the protrusion (26a) being configured to slide along a lower surface of the release rib (13), and

the temporary locking state of the lever (30) is released at a position where the protrusion (26a) passes over the temporary setting beak (14) from the lower surface of the release rib (13).

3. A lever type connector (10) as claimed in claim 2 wherein

The temporary setting beak part (14) has a trapezoidal shape and protrudes integrally with the release rib part (13).

4. A lever type connector (10) as claimed in claim 2 wherein

The tip end portion of the release rib (13) functions as a release portion to release the temporarily locked state between the temporarily locked portion (25) of the second housing (20) and the temporarily locking arm portion (36) of the lever (30).

Technical Field

The present invention relates to a lever type connector capable of connector fitting with a low insertion force by rotating a lever.

Background

Such a lever type connector includes a housing having a hood portion that is fitted to and removed from a counterpart housing (JP 9-223539 a). This lever type connector includes: a cam groove whose two mounting portions are rotatably supported by the support shafts on both sides of the housing and engaged with a cam pin provided in the mating housing; and a lever configured to fit the both housings by engagement between the cam groove and the cam pin by a rotational operation from a start position (a temporary set position) to a fit-completion position. On both mounting portions of the lever, locking projections for restricting rotation of the lever are provided at positions deviated from the locus of introduction of the cam pin into the cam groove.

When the cam pin is introduced into the cam groove at the start of fitting of the two housings, pressing portions provided on both sides of the mating housing are engaged with the locking projections of the lever, and are displaced to the outside from and removed from an engagement groove provided in the hood portion. Therefore, the rotation restriction of the lever is released. Unlike the case where the rotation restriction is released by the cam pin, the locking protrusion is not displaced so as to straddle the cam groove, and therefore the amount of bending of the locking protrusion can be suppressed to a small value.

Disclosure of Invention

However, since the conventional lever type connector has a structure of suppressing the amount of displacement when releasing the temporary setting lock of the lever, there is no holding force between the housing and the counterpart housing in the temporary setting state, and there is a possibility that both housings may be easily disengaged before the lever is rotated.

Accordingly, an object of the present invention is to provide a lever type connector capable of preventing disengagement of both housings in a temporarily set state before a turning operation of a lever in a temporarily locked state.

The invention provides a lever type connector, comprising:

a first housing having a cam table;

a second housing fitted to and removed from the first housing; and

a lever rotatably supported by the second housing via a support shaft, the lever having a cam groove engaged with the cam table, the lever being configured to: pulling the first housing toward the second housing to fit the first housing and the second housing by engagement between the cam groove and the cam boss with a rotating operation of a lever from a temporary locking position to a fitting completion position, wherein

The lever includes a temporary locking arm portion having a temporary locking portion, the temporary locking arm portion being elastically deformable,

the second housing includes a temporarily locked portion configured to be temporarily locked to and disengaged from the temporarily locking portion of the temporarily locking arm portion, and a temporarily setting arm portion configured to suppress disengagement between the first housing and the second housing in a temporarily set state during release of temporary locking between the temporarily locking portion of the temporarily locking arm portion and the temporarily locked portion of the second housing, and

the first housing includes a release rib configured to release a temporarily locked state between the temporary locking portion of the temporary locking arm portion and the temporary locked portion of the second housing.

According to the disclosure, by the temporarily set arm portion provided in the second housing, it is possible to suppress the disengagement between the first housing and the second housing in the temporarily set state before the lever is rotated.

Drawings

Fig. 1 is an exploded perspective view of a lever type connector according to an embodiment of the present invention;

fig. 2 is a side view of the male housing of the lever type connector;

FIG. 3 is a side view of the female housing of the lever connector;

FIG. 4 is a front view of the lever connector;

fig. 5 is a sectional view taken along line X-X in fig. 4 at the start of insertion of the temporary setting arm portion of the female housing;

fig. 6 is a sectional view taken along line Y-Y in fig. 4 at the time of temporarily setting the start of arm portion insertion;

FIG. 7 is a sectional view taken along line X-X in FIG. 4 when the insertion apex of the arm portion is temporarily set;

fig. 8 is a sectional view taken along the line Y-Y in fig. 4 when the insertion apex of the arm portion is temporarily set;

fig. 9 is a sectional view taken along line X-X of fig. 4 during displacement of the temporary setting arm portion at the start of temporary lock release of the temporary locking arm portion of the lever-type connector;

fig. 10A is a sectional view taken along the line Y-Y of fig. 4 during the displacement of the temporary setting arm portion at the start of the temporary lock release of the temporary locking arm portion, and fig. 10B is a sectional view taken along the line Z-Z of fig. 10A;

fig. 11 is a sectional view taken along the line X-X of fig. 4 during displacement of the temporary setting arm portion while the temporary locking arm portion is released from temporary locking;

fig. 12A is a sectional view taken along the line Y-Y of fig. 4 during the displacement of the temporary setting arm portion while the temporary locking arm portion is released from temporary locking, and fig. 12B is a sectional view taken along the line Z-Z of fig. 12A;

fig. 13 is a sectional view taken along the line X-X of fig. 4 when the displacement of the temporary setting arm portion is completed while the temporary locking arm portion is released from temporary locking;

fig. 14A is a sectional view taken along the line Y-Y of fig. 4 when the displacement of the temporary setting arm portion is completed while the temporary locking arm portion is released by the temporary locking, and fig. 14B is a sectional view taken along the line Z-Z of fig. 14A;

fig. 15 is a sectional view taken along line X-X of fig. 4 when the temporary locking arm portion has been released temporarily; and is

Fig. 16A is a sectional view taken along the line Y-Y of fig. 4 when the temporary locking arm portion has been released from temporary locking, and fig. 16B is a sectional view taken along the line Z-Z of fig. 16A.

Detailed Description

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

As shown in fig. 1, the lever type connector 10 includes: a synthetic resin male housing (first housing) 11 having a cam boss 12; a synthetic resin female housing (second housing) 20 fitted to the male housing 11 and removed from the male housing 11; a cam groove 35 rotatably supported via a support shaft 23 provided in the female housing 20 and engaged with the cam table 12 of the male housing 11; and a synthetic resin lever 30 for pulling the male housing 11 toward the female housing 20 by engagement between the cam groove 35 and the cam table 12 via rotation of the operating portion 31 to fit the male housing 11 and the female housing 20.

As shown in fig. 1 and 2, the male housing 11 has a hood portion 11a, and the hood portion 11a is inserted into a hood portion 22 of the female housing 20 on the front side. Further, a cam boss 12 in a columnar shape integrally protrudes at the respective centers of both side surfaces 11b and 11b of the male housing 11. Further, release ribs 13 extending in the front-rear direction integrally project below the cam stages 12 of the both side faces 11b and 11b of the male housing 11. The tip 13a of the release rib 13 is a releasing portion configured to release the temporarily locked state between the cutout portion (temporarily locked portion) 25 of the female housing 20 and a temporarily locking protrusion (temporarily locking portion) 36a of a temporarily locking arm portion 36 of the lever 30 described later. Further, a trapezoidal temporary setting beak part 14 integrally protrudes at the center of the lower surface 13c of the release rib part 13. As shown in fig. 2, a slope 13b is provided on the rear side of the tip 13a of the release rib 13. The trapezoidal temporary setting beak 14 has an anterior slope 14a, a straight face 14b and a posterior slope 14 c. Further, as shown in fig. 5, the tab portion 16a of the male terminal (terminal) 16 is exposed in the hood portion 11a of the male housing 11.

As shown in fig. 1, 3 and 5, the female housing 20 includes a block-shaped housing body 21 and a hood 22, the housing body 21 has a plurality of terminal accommodating chambers 21a, the hood 22 integrally protrudes on a front side of the housing body 21, and the hood 11a of the male housing 11 is fitted into the hood 22. The support shaft 23 integrally protrudes at the respective centers of the both side surfaces 21b and 21b of the case body 21. Further, the elastically deformable lock arm portion 24 integrally protrudes on the front side of the center of the upper surface 21c of the housing body 21. The receiving portion 24b integrally protrudes at a free end (tip) 24a of the lock arm 24.

As shown in fig. 1 and 3, a substantially rectangular cutout portion (temporarily locked portion) 25 is formed on the front side of the center of each of both sides of the hood portion 22 of the female housing 20. That is, the temporary locking projections 36a of the temporary locking arm portions 36 of the lever 30 described later are temporarily locked to and disengaged from the lower edges 25a of the respective cut-out portions 25, and when the temporary locking projections 36a of the temporary locking arm portions 36 are temporarily locked to the lower edges 25a, as shown in fig. 6, the lever 30 is held in the temporary locking position (temporary locking state).

In addition, as shown in fig. 1 and 3, the provisional setting arm portions 26 are formed integrally on the front side of the lower edges 25a of the respective cut-out portions 25 in an elastically deformable manner. The temporary setting arm portion 26 has a projection 26a configured to slide along the lower surface 13c of the release rib portion 13 at the tip (free end) of the temporary setting arm portion 26. Until this projection 26a slides along the lower surface 13c of the release rib 13 and the projection 26a passes over the temporary setting beak 14 from the lower surface 13c of the release rib 13, as shown in fig. 14A and 14B, the temporary setting arm 26 suppresses disengagement between the male housing 11 and the female housing 20 in the temporarily set state while the lever 30 is released by temporary locking.

Further, as shown in fig. 1, a square ring-shaped packing 28 made of rubber is interposed between the hood portion 22 of the female housing 20 and the plurality of terminal accommodating chambers 21a of the housing body 21. Further, as shown in fig. 5, a front holder 29 made of synthetic resin is fitted to the periphery of the plurality of terminal accommodating chambers 21a of the housing body 21 in the hood portion 22 of the female housing 20, the front holder 29 having a square cylindrical shape including a front wall portion 29 a. The front wall portion 29a of the front holder 29 is provided with a plurality of rectangular opening portions 29b that communicate with the plurality of terminal accommodating chambers 21a of the housing body 21. As shown in fig. 5, the female terminals 21d accommodated in the respective terminal accommodating chambers 21a of the housing body 21 are locked by the lances 21 e.

As shown in fig. 1 and 6, the lever 30 includes an operating portion 31 and a pair of arm portions 32 and 32 extending from both sides of the operating portion 31.

As shown in fig. 1 and 5, the locking protrusion 33 is provided on the lower side of the center of the operating portion 31 of the lever 30. The locking projection 33 is locked to the receiving portion 24b of the locking arm 24 of the female housing 20 when the lever 30 is rotated to the rotation completion position. Due to this locking, a rotation restricting state in which the rotation of the lever 30 is restricted is produced. When the receiving portion 24b of the lock arm 24 is disengaged from the locking projection 33 by depressing the free end 24a of the lock arm 24, the locked state between the locking projection 33 of the lever 30 and the receiving portion 24b of the lock arm 24 of the female housing 20 is released.

As shown in fig. 1, bearing holes 34 rotatably supported by the support shafts 23 are formed on the rear side of the centers of the respective arm portions 32 of the lever 30. Arc-shaped concave cam grooves 35 are formed inside the respective arm portions 32. Further, elastically deformable temporary locking arm portions 36 having temporary locking projections (temporary locking portions) 36a at the tips are integrally formed below the respective arm portions 32. As shown in fig. 16A and 16B, after the temporary locking state between the temporary locking projection 36A of the temporary locking arm 36 of the lever 30 and the lower edge 25a of the cutout 25 of the female housing 20 is released at the tip 13a of the release rib 13 of the male housing 11 (after the temporary locking state is released, or while the temporary locking state is released), the projection 26A of the temporary setting arm 26 of the female housing 20 passes over the temporary setting beak part 14 of the release rib 13 of the male housing 11 immediately.

As shown in fig. 1 and 4, on both side surfaces 11b and 11b of the male housing 11, respectively, a convex portion 15 integrally protrudes rearward of the cam table 12 in parallel with the release rib 13. As shown in fig. 4, when male housing 11 is inserted into hood portion 22 of female housing 20, convex portion 15 of male housing 11 is received in concave portions 22b formed on both sides of flange portion 22a of hood portion 22 of female housing 20 and guided. In addition, when the lever 30 is rotated from the temporary locking position to the rotation completion position, and the locking projection 33 of the lever 30 is locked to the receiving portion 24b of the locking arm portion 24 of the female housing 20 and is held in the rotation restricting state, the temporary locking projections 36a of the temporary locking arm portion 36 provided on the arm portion 32 of the lever 30 are moved from the lower edges 25a of the cutout portions 25 on both sides of the hood portion 22 of the female housing 20 and are received in the holes 27 formed in the lower side of the cutout portions 25.

Next, a process until the temporary locking state between the temporary locking projection 36a of the temporary locking arm portion 36 of the lever 30 and the lower edge 25a of the cutout portion 25 of the female housing 20 is released at the tip 13a of the release rib 13 of the male housing 11, and the projection portion 26a of the temporary setting arm portion 26 of the female housing 20 passes over the temporary setting beak portion 14 of the release rib 13 of the male housing 11 will be described in order with reference to fig. 5 to 16B.

As shown in fig. 5 and 6, at the start of insertion of the temporary setting arm portion 26 of the female housing 20 when the hood portion 11a of the male housing 11 is inserted into the hood portion 22 of the female housing 20, the temporary locking projection 36a of the temporary locking arm portion 36 of the lever 30 is temporarily locked to the lower edge 25a of the cutout portion 25 of the female housing 20, and the projection portion 26a of the temporary setting arm portion 26 of the female housing 20 is in contact with the front slope 14a of the temporary setting beak portion 14 of the male housing 11. This state is a temporarily set state of the male housing 11 and the female housing 20. The projection 26a of the temporary setting arm portion 26 comes into contact with the front slope 14a of the temporary setting beak portion 14, and the temporary setting arm portion 26 bends and deforms (elastically deforms) downward so that the temporary setting state is held by the reaction force. That is, the male housing 11 and the female housing 20 in the temporarily set state are held by the reaction force obtained by the elastic deformation of the temporarily set arm portions 26, and the holding force is significantly improved as compared with the conventional one.

As shown in fig. 7 and 8, at the time of the insertion apex of the temporary setting arm portion 26 of the female housing 20, the temporary locking projection 36a of the temporary locking arm portion 36 of the lever 30 is temporarily locked to the lower edge 25a of the cutout portion 25 of the female housing 20, and the projection portion 26a of the temporary setting arm portion 26 of the female housing 20 comes from the front slope 14a of the temporary setting beak portion 14 of the male housing 11 onto the straight surface 14b due to the elastic deformation (displacement) of the temporary setting arm portion 26.

As shown in fig. 9, 10A and 10B, at the time of the start of the temporary locking release of the temporary locking arm portion 36 of the lever 30, the temporary setting arm portion 26 of the female housing 20 is displaced, the temporary locking projection 36a of the temporary locking arm portion 36 of the lever 30 starts to contact the inclined surface 13B of the tip 13a of the release rib portion 13 of the male housing 11, and the projection portion 26a of the temporary setting arm portion 26 of the female housing 20 comes into contact with the straight surface 14B in the vicinity of the rear inclined surface 14c of the temporary setting beak portion 14 of the male housing 11.

As shown in fig. 11, 12A and 12B, when the temporary locking arm 36 of the lever 30 is released from temporary locking and the temporary setting arm 26 of the female housing 20 is displaced, the temporary locking projection 36a of the temporary locking arm 36 of the lever 30 continues to contact the inclined surface 13B of the tip 13a of the release rib 13 of the male housing 11, and the projection 26a of the temporary setting arm 26 of the female housing 20 approaches the rear inclined surface 14c of the temporary setting beak part 14 of the male housing 11.

As shown in fig. 13, 14A and 14B, at the apex of the temporary locking release of the temporary locking arm portion 36 of the lever 30, the displacement of the temporary setting arm portion 26 of the female housing 20 is completed, the temporary locking projection 36a of the temporary locking arm portion 36 of the lever 30 comes into contact with the end of the slope 13B of the tip 13a of the release rib 13 of the male housing 11, and the projection 26a of the temporary setting arm portion 26 of the female housing 20 comes into contact with the end of the rear slope 14c of the temporary setting beak portion 14 of the male housing 11, and returns to the initial position. Thus, the lever 30 can be rotated.

As shown in fig. 15, 16A and 16B, when the temporary locking release of the temporary locking arm portion 36 of the lever 30 is completed, the temporary locking state between the temporary locking projection 36A of the temporary locking arm portion 36 of the lever 30 and the lower edge 25a of the cutout portion 25 of the female housing 20 is released at the tip 13a of the release rib 13 of the male housing 11, and the projection portion 26A of the temporary setting arm portion 26 of the female housing 20 passes over the rear slope 14c of the temporary setting beak portion 14 of the male housing 11 and contacts with the lower surface 13c of the release rib 13.

According to the lever type connector 10 of the above embodiment, during the temporary locking release between the temporary locking projection 36a of the temporary locking arm 36 of the lever 30 and the lower edge 25a of the cutout 25 of the female housing 20, the temporary setting arms 26 which suppress the disengagement between the male housing 11 and the female housing 20 in the temporarily set state are respectively provided on both sides of the hood portion 22 of the female housing 20, and the male housing 11 and the female housing 20 in the temporarily set state are held by the reaction force by the elastic deformation of the temporary setting arms 26. As a result, the disengagement between the male housing 11 and the female housing 20 in the temporarily set state can be reliably suppressed before the lever 30 is turned, and the temporarily set state of the male housing 11 and the female housing 20 can be maintained before the lever 30 is turned. In addition, by changing the timing of displacement of the temporary setting arm portion 26 of the female housing 20 and the timing of release of the temporary locking arm portion 36 of the lever 30, the temporary setting force of the lever type connector 10 can be reduced.

As shown in fig. 15, 16A and 16B, after the temporary locking between the temporary locking projection 36A of the temporary locking arm portion 36 of the lever 30 and the lower edge 25a of the cutout portion 25 of the female housing 20 is released, the holding force of the lever type connector 10 can be improved by causing the projection portion 26A of the temporary setting arm portion 26 of the female housing 20 to ride over the temporary setting beak portion 14 provided on the lower surface 13c of the release rib portion 13 of the male housing 11.

According to the embodiment, although the cutout portion as the temporary locked portion of the female housing and the temporary locking projection as the temporary locking portion of the temporary locking arm portion of the lever are temporarily locked, the temporary locked portion may be a concave portion or a convex portion instead of the cutout portion.