Lever type connector

Abstract

To provide a lever type connector capable of effectively performing fitting holding and cancelling of a pair of connector housings.SOLUTION: A lever type connector comprises: a pair of lever parts 300 provided in a second connector 200 that can be attached and detached to / from a first connector housing 100 having a first projection part on an outer surface so as to be axially rotated, and each having a lock part 320 and a cam part 330 provided at a place different from the lock part; and an elastic member 400 attached to a second connector housing at one end side and attached to the lever part at the other end side. The lever part is axially rotated to the first connector housing side from the second connector housing side by the elastic member. The lock part is energized so as to be engaged to the first projection part of the first connector housing. The engagement of the lock part is cancelled from the first projection part of the axial rotation of the lever part to the second connector housing side from the first connector housing side. The cam part of the lever part can be slit and depressed to the first projection part of the first connector housing.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a lever-type connector.

Background Art

[0002] Conventionally, a lever-type connector that attaches and detaches a pair of connector housings by rotating a lever portion may be used.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] Here, with respect to the conventional lever-type connector, the inventors of the present application newly found that there are matters to be improved in the following points.

[0005] Specifically, when fitting and holding a pair of connector housings, it is necessary for the user to perform the fitting of the connectors and the locking of the lever portion by rotating the lever portion. However, there is a concern about the possibility of forgetting to lock the lever portion due to the user's carelessness, and there is also a concern about the complexity of the operation of performing the fitting of the connectors and the locking by rotating the lever portion in two steps.

[0006] Also, when the pair of connector housings are disengaged, the user needs to release the lock of the lever portion and then pull out the other connector housing from one of the connector housings. However, when a large number of connector terminals are provided in the connector housing and a relatively large-sized lever-type connector is used accordingly, due to the large frictional force of the connector terminal contacts, the disengagement of the pair of connector housings by the above-mentioned pulling-out operation after the lock of the lever portion is released may impose a physical burden on the operator.

[0007] In view of the above points, an object of the present disclosure is to provide a lever-type connector capable of efficiently performing both the fitting and holding and the fitting release of a pair of connector housings.

Means for Solving the Problems

[0008] In order to achieve the above object, in the present disclosure, a first connector housing having a first protrusion portion on an outer surface, a second connector housing detachable from the first connector housing, a pair of lever portions rotatably provided on the second connector housing and each having a lock portion and a cam portion provided at a location different from the lock portion, and an elastic member having one end attached to the second connector housing and the other end attached to the lever portion are provided. The lever portion is axially rotated from the second connector housing side to the first connector housing side by the elastic member, and the lock portion is biased to be engageable with the first protrusion portion of the first connector housing. When the lever portion is axially rotated from the first connector housing side to the second connector housing side, the lock portion is disengaged from the first protrusion portion, and the cam portion of the lever portion is slidable and pressable against the first protrusion portion of the first connector housing, and a lever-type connector is provided.

Advantages of the Invention

[0009] According to the lever-type connector of the present disclosure, it is possible to efficiently perform both fitting and holding and fitting release of a pair of connector housings.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6A

Figure 6B

Figure 6C

Figure 6D

Figure 6E

Figure 6F

Figure 6G

Figure 7A

Figure 7B

Figure 7C

Figure 7D

Figure 7E

Figure 7F

MODE FOR CARRYING OUT THE INVENTION

[0011] [Configuration of Lever-Type Connector] Hereinafter, with reference to FIGS. 1 to 5, the configuration of the lever-type connector of the present disclosure will be specifically described.

[0012] FIG. 1 is a perspective view schematically showing the lever-type connector of the present disclosure. FIG. 2 is a front view schematically showing the lever-type connector of the present disclosure. FIG. 3 is a perspective view schematically showing the lever-type connector of the present disclosure with some components omitted and the elastic member made explicit. FIG. 4 is a perspective view schematically showing a state of release (removal) of the second connector housing from the first connector housing in the lever-type connector of the present disclosure. FIG. 5 is an exploded perspective view schematically showing the lever-type connector of the present disclosure.

[0013] As shown in FIGS. 1 to 5, the lever-type connector 1000 of the present disclosure includes a first connector housing 100, a second connector housing 200, a pair of lever portions 300, an elastic member 400, a first inner housing 500, a second inner housing 600, and a cable clamp 700 attached to the second connector housing 200.

[0014] The first connector housing 100 is, for example, a device-side connector housing attached to industrial equipment (not shown), and has an open space 110 inside which the first inner housing 500 can be attached. Further, the first connector housing 100 has a first protrusion portion 130 on its outer surface 120.

[0015] The second connector housing 200 is configured to be detachable from the first connector housing 100. Specifically, the second connector housing 200 is configured to be fitted to and detached from the first connector housing 100. Although not particularly limited, as shown in the figure, both the first connector housing 100 and the second connector housing 200 may have a rectangular planar shape.

[0016] The second connector housing 200 has, for example, a through hole 210 to which a cable clamp 700 for holding a cable (not shown) can be connected, and an open space inside which the second inner housing 600 that can be fitted to the above-described first inner housing 500 can be attached. That is, the second connector housing 200 is a cable-side connector housing to which the cable is attached. Further, as will be described later, the second connector housing 200 has a second protrusion portion 230 on its outer surface 220.

[0017] The second inner housing 600 has an inner space into which the electric wires in the cable can be inserted, and the electric wires and terminals are connected in this inner space. Also, the first inner housing 500 can be connected to the terminals connected to the electric wires in the second inner housing 600. In one example, as shown in FIG. 5, the second inner housing 600 can be the inner housing on the male terminal side, and the first inner housing 500 can be the inner housing on the female terminal side. In another example, the second inner housing 600 can be the inner housing on the female terminal side, and the first inner housing 500 can be the inner housing on the male terminal side. The first inner housing 500 and the second inner housing 600 can each be made of an insulating resin.

[0018] In this specification, since the "first connector housing 100" and the "second connector housing 200" are each a housing to which the inner housing can be attached, they can also be referred to as the "first outer housing" and the "second outer housing". Also, since the second connector housing 200 is a connector housing provided on the first connector housing 100 along the fitting direction during fitting, the "first connector housing 100" can be referred to as the lower connector housing, and the "second connector housing 200" can be referred to as the upper connector housing.

[0019] Each of the pair of lever portions 300 is provided rotatable about an axis with respect to (i.e., relative to) the second connector housing 200. Specifically, each of the pair of lever portions 300 is provided rotatable about an axis on the outer surface 220 of the second connector housing 200. Each of the pair of lever portions 300 can be arranged to face each other via the second connector housing 200.

[0020] The lever portion 300 has a handle portion 310 or a handle part for a user (or operator) to hook a finger, a lock portion 320 continuous therewith, and a cam portion 330 provided at a location different from the lock portion 320. That is, both the lock portion 320 and the cam portion 330 are provided on one lever portion 300. Thereby, in accordance with the axial rotational movement of the lever portion 300, both the lock portion 320 and the cam portion 330 can move integrally.

[0021] As described above, when both the first connector housing 100 and the second connector housing 200 have a rectangular planar shape, each lever portion 300 is pivotally supported on the longitudinal side surface of the second connector housing 200, and the handle portion 310 of the lever portion 300 can be arranged to face the short side surface of the second connector housing 200.

[0022] The lock portion 320 of the lever portion 300 has an inclined surface 321 slidable on the first protrusion portion 130 of the first connector housing 100 during the process of fitting the second connector housing 200 downward with respect to the first connector housing 100 (that is, before the axial rotation of the lever portion 300 from the second connector housing 200 side to the first connector housing 100 side).

[0023] Also, from the viewpoint of making the sliding of the inclined surface 321 of the lock portion 320 with respect to the first protrusion portion 130 of the first connector housing 100 smooth, it is preferable that the first protrusion portion 130 has a circular contour surface 131.

[0024] Furthermore, the lock portion 320 of the lever portion 300 has a locking surface 322 that extends from the upper end of the inclined surface 321 and can be locked to the first protrusion portion 130 after the axial rotation of the lever portion 300 from the second connector housing 200 side to the first connector housing 100 side. In order to be able to lock to the first protrusion portion 130, this locking surface 322 may have a minute recessed region capable of receiving a part of the first protrusion portion 130.

[0025] One end 410 of the elastic member 400 is attached to the second connector housing 200, and the other end 420 is attached to the lever portion 300. As used herein, the "elastic member 400" refers to a member that deforms under an external force and has the property of returning to its original state when the external force is removed.

[0026] As an example of the elastic member 400, a torsion spring shown in FIG. 3 can be used. Without being limited thereto, as the elastic member 400, a leaf spring, a compression coil spring, or the like can be used.

[0027] (Characteristics when the connector housing is fitted and held) Here, as a characteristic of the present disclosure, the lever portion 300 can be urged by the elastic member 400 to rotate axially from the second connector housing 200 side to the first connector housing 100 side, and the locking portion 320 can be locked to the first protrusion portion 130 of the first connector housing 100.

[0028] In other words, the biasing force of the elastic member 400 is a force that rotates the lever portion 300 axially from the second connector housing 200 side to the first connector housing 100 side, and then enables the locking portion 320 of the lever portion 300 to be locked to the first protrusion portion 130 of the first connector housing 100.

[0029] In this specification, the direction of "axial rotation of the lever portion 300 from the second connector housing 200 side to the first connector housing 100 side" refers to the downward rotation direction in which the handle portion 310 of the lever portion 300 approaches from the second connector housing 200 to the first connector housing 100.

[0030] According to such a configuration, (1) when the user fits the second connector housing 200 downward with respect to the first connector housing 100, the inclined surface 321 of the lock portion 320 of the lever portion 300 is brought into contact with the first protrusion portion 130 of the first connector housing 100 and slid to a predetermined position. Then, at the end of the fitting, (2) due to the biasing of the lever portion 300 by the elastic member 400, the lock portion 320 of the lever portion 300 can be automatically locked to the first protrusion portion 130 of the first connector housing 100.

[0031] From the above, even if the user does not lock the pair of lever portions 300 after the fitting of the pair of lever portions 300, the second connector housing 200 can be fitted and held with respect to the first connector housing 100. Thereby, it is possible to solve the problems of the user forgetting to lock the lever portion 300 due to carelessness and the complexity of the operation of performing the fitting and locking of the first connector housing 100 and the second connector housing 200 in two steps.

[0032] (Features when releasing the fitting of the connector housing) Further, as a feature of the present disclosure, by the axial rotation of the lever portion 300 from the first connector housing 100 side to the second connector housing 200 side, the locking of the lock portion 320 of the lever portion 300 from the first protrusion portion 130 of the first connector housing 100 can be released. At the same time, by the axial rotation of the lever portion 300 from the first connector housing 100 side to the second connector housing 200 side, the cam portion 330 of the lever portion 300 can slide and press against the first protrusion portion 130 of the first connector housing 100.

[0033] In this specification, the direction of "axial rotation of the lever portion 300 from the first connector housing 100 side to the second connector housing 200 side" refers to the upward rotation direction in which the handle portion 310 of the lever portion 300 approaches from the first connector housing 100 to the second connector housing 200.

[0034] According to such a configuration, when an operator lifts the handle portion 310 of the lever portion 300 in the fitting release direction of the connector housing, that is, upward, and axially rotates the lever portion 300 from the first connector housing 100 side to the second connector housing 200 side, (1) the locking portion 320 of the lever portion 300 can be unlocked from the first protrusion portion 130 of the first connector housing 100.

[0035] In addition to this, when the cam portion 330 of the lever portion 300 slides from a predetermined position of the first protrusion portion 130 to another position, and presses the first protrusion portion 130 during this sliding, an upward reaction force can be generated, and by utilizing this force, it becomes possible to move the second connector housing 200 upward from the first connector housing 100. That is, the cam portion 330 of the lever portion 300 can preferably provide an auxiliary force or assistive force for the pulling operation (corresponding to fitting release) of the second connector housing 200 from the first connector housing 100.

[0036] Therefore, for the pulling operation (corresponding to fitting release) of the second connector housing 200 from the first connector housing 100, by assisting the pulling force with the cam portion 330 (corresponding to the cam mechanism), it becomes possible to unlock the lever portion 300 and release the fitting of the pair of connector housings 100 and 200 without imposing a physical burden on the operator. This can be particularly advantageous when using a lever - type connector 1000 with a relatively large size due to a large number of connector terminals provided in the connector housing, that is, a strong frictional force between the terminal contacts.

[0037] From the above, as a whole, according to the lever - type connector 1000 of the present disclosure, it is possible to efficiently perform both the fitting retention and fitting release of the pair of connector housings 100 and 200.

[0038] From the perspective of smoothly performing the sliding and pressing of the cam portion 330 of the lever portion 300 against the first protruding portion 130 described above, it is preferable that the cam portion 330 has an outer curved surface 331, and as described above, the first protruding portion 130 preferably has a circular contour surface 131. Further, from the perspective of making the pressing area of the cam portion 330 against the first protruding portion 130 of the first connector housing 100 as large as possible, the cam portion 330 can be provided at a position where the locking portion 320 can be unlocked from the first protruding portion 130 when the outer curved surface 331 abuts against the first protruding portion 130 of the first connector housing.

[0039] In addition, in the present disclosure, regarding the second protruding portion 230 of the second connector housing 200 described above, (1) when the lever portion 300 rotates about its axis from the first connector housing 100 side to a predetermined position of the lever portion 300 on the second connector housing 200 side, and (2) when the lever portion 300 rotates about its axis from the second connector housing 200 side to a predetermined position of the lever portion 300 on the first connector housing 100 side, it is preferable that the lever portion 300 can abut against the second protruding portion 230.

[0040] According to such a configuration, at the time of (1) above, specifically, when the disengagement of the fitting of the second connector housing 200 from the first connector housing 100 is completed, it is possible to avoid the lever portion 300 rotating further about its axis unnecessarily, and it becomes possible to suitably regulate the range of rotation of the lever portion 300 about its axis from the first connector housing 100 side to the second connector housing 200 side.

[0041] According to such a configuration, at the time of (2) above, specifically, when the fitting of the second connector housing 200 to the first connector housing 100 is completed, it is possible to avoid the lever portion 300 rotating further about its axis unnecessarily, and it becomes possible to suitably regulate the range of rotation of the lever portion 300 about its axis from the second connector housing 200 side to the first connector housing 100 side.

[0042] Also, in each of the pair of lever portions 300 described above, it is preferable that the lock portion 320, the cam portion 330, and the elastic member 400 are arranged to face each other on both sides with the second connector housing 200 interposed therebetween.

[0043] According to such an arrangement, it becomes possible to provide four of each of the lock portion 320, the cam portion 330, and the elastic member 400 with respect to the second connector housing 200. As a result, it becomes possible to secure four automatic locking points of the lock portion 320 of the lever portion 300 with respect to the first protrusion portion 130 of the first connector housing 100. As a result, it becomes possible to more suitably perform the fitting and holding of the second connector housing 200 with respect to the first connector housing 100.

[0044] According to such an arrangement, it becomes possible to secure four points where the reaction force in the upward direction is generated due to the pressing of the first protrusion portion 130 by the cam portion 330 of the lever portion 300. As a result, it becomes easier to more suitably move the second connector housing 200 upward from the first connector housing 100. Therefore, it becomes possible to more suitably perform the fitting release of the pair of connector housings 100 and 200.

[0045] Also, although not particularly limited, the lever portion 300 and the first protrusion portion 130 of the first connector housing 100 can be composed of a metal member, for example, a stainless steel member, so as to preferably have sufficient resistance strength against the locking of the lock portion 320 to the first protrusion portion 130 and the pressing of the cam portion 330. Further, the first connector housing 100 and the second connector housing 200 can be composed of a die-cast metal member such as a zinc alloy or an aluminum alloy that can achieve both moldability and strength. Among the components of the lever-type connector 1000 of the present disclosure other than these, except for screws or rivet members as connecting members, they can be composed of resin members. Without being limited to this, when the degree of requirement for resistance strength and oil resistance is relatively small, all of the main components may be composed of resin members except for screws or rivet members as connecting members.

[0046] [Operation 1 of the Lever-Type Connector] Hereinafter, with reference to FIGS. 6A to 6G, the operation flow from the start to the completion of fitting of a pair of connector housings will be described. Note that the description of the content overlapping with that described in the column regarding the above configuration will be simplified or omitted.

[0047] FIG. 6A is a front view schematically showing a first state at the start of fitting of the second connector housing to the first connector housing. FIG. 6B is a front view schematically showing a second state during the fitting of the second connector housing to the first connector housing. FIG. 6C is a front view schematically showing a third state during the fitting of the second connector housing to the first connector housing. FIG. 6D is a front view schematically showing a fourth state during the fitting of the second connector housing to the first connector housing. FIG. 6E is a front view schematically showing a fifth state during the fitting of the second connector housing to the first connector housing. FIG. 6F is a front view schematically showing a sixth state during the fitting of the second connector housing to the first connector housing. FIG. 6G is a front view schematically showing a seventh state at the completion of fitting of the second connector housing to the first connector housing.

[0048] · The first state at the start of fitting of the second connector housing to the first connector housing As shown in FIG. 6A, the operator starts fitting the second connector housing 200 to the first connector housing 100. At this time, the inclined surface 321 of the lock portion 320 of the lever portion 300 is positioned above the first protrusion portion 130 of the first connector housing 100.

[0049] · The second state during the fitting of the second connector housing to the first connector housing Next, as shown in FIG. 6B, the operator continues fitting the second connector housing 200 to the first connector housing 100. At this time, the inclined surface 321 of the lock portion 320 of the lever portion 300 abuts against the first protrusion portion 130 of the first connector housing 100.

[0050] · The third state when the second connector housing is being fitted into the first connector housing Next, as shown in FIG. 6C, the operator further continues to fit the second connector housing 200 into the first connector housing 100. At this time, the inclined surface 321 of the locking portion 320 of the lever portion 300 starts to slide with respect to the first protruding portion 130 of the first connector housing 100.

[0051] · The fourth state when the second connector housing is being fitted into the first connector housing Next, as shown in FIG. 6D, the operator further continues to fit the second connector housing 200 into the first connector housing 100. At this time, the inclined surface 321 of the locking portion 320 of the lever portion 300 continues to slide downward with respect to the first protruding portion 130 of the first connector housing 100.

[0052] · The fifth state when the second connector housing is being fitted into the first connector housing Next, as shown in FIG. 6E, the operator further continues to fit the second connector housing 200 into the first connector housing 100. At this time, the upper end of the inclined surface 321 of the locking portion 320 of the lever portion 300 may be in contact with the first protruding portion 130 of the first connector housing 100.

[0053] · The sixth state when the second connector housing is being fitted into the first connector housing Next, as shown in FIG. 6F, the operator further continues to fit the second connector housing 200 into the first connector housing 100. At this time, the locking surface 321 of the locking portion 320 of the lever portion 300 starts to receive the first protruding portion 130 of the first connector housing 100.

[0054] As described above, the lever portion 300 can be axially rotated from the second connector housing 200 side to the first connector housing 100 side by an elastic member (see also the member denoted by reference numeral 400 in FIGS. 1 to 5), and the locking portion 320 can be urged to be lockable with respect to the first protrusion portion 130 of the first connector housing 100. Due to adopting such a configuration, from this sixth state (or the above-described fifth state), the lever portion 300 is urged by the elastic member and axially rotates from the second connector housing 200 side to the first connector housing 100 side.

[0055] · The seventh state when the fitting of the second connector housing to the first connector housing is completed Next, as shown in FIG. 6G, the operator further continues the fitting of the second connector housing 200 to the first connector housing 100. At this time, the lever portion 300 is continuously urged by the elastic member and further axially rotates from the second connector housing 200 side to the first connector housing 100 side. As a result, finally, the reception of the first protrusion portion 130 of the first connector housing 100 by the locking surface 321 of the locking portion 320 of the lever portion 300 is completed, and the locking portion 320 of the lever portion 300 is automatically locked to the first protrusion portion 130 of the first connector housing 100.

[0056] [Operation 2 of the lever type connector] Hereinafter, with reference to FIGS. 7A to 7F, the operation flow from the start to the completion of the disengagement of a pair of connector housings will be described. Regarding the content overlapping with that described in the column related to the above configuration, the description thereof will be simplified or omitted.

[0057] FIG. 7A is a front view schematically showing a first state at the start of disengagement of the second connector housing from the first connector housing. FIG. 7B is a front view schematically showing a second state during disengagement of the second connector housing from the first connector housing. FIG. 7C is a front view schematically showing a third state during engagement of the second connector housing with the first connector housing. FIG. 7D is a front view schematically showing a fourth state during engagement of the second connector housing with the first connector housing. FIG. 7E is a front view schematically showing a fifth state during engagement of the second connector housing with the first connector housing. FIG. 7F is a front view schematically showing a sixth state at the completion of disengagement of the second connector housing from the first connector housing.

[0058] · The first state at the start of disengagement of the second connector housing from the first connector housing As shown in FIG. 7A, the operator starts to lift the handle portion 310 of the lever portion 300 in the disengagement direction of the connector housing, i.e., upward.

[0059] · The second state during disengagement of the second connector housing from the first connector housing As shown in FIG. 7B, the operator continues to lift the handle portion 310 of the lever portion 300 in the disengagement direction of the connector housing, i.e., upward.

[0060] At this time, the lever portion 300 is rotationally displaced about its axis from the first connector housing 100 side toward the second connector housing 200 side, and the locking of the locking portion 320 of the lever portion 300 to the first protruding portion 130 of the first connector housing 100 is released.

[0061] At the same time, due to the rotational displacement of the lever portion 300 about its axis from the first connector housing 100 side toward the second connector housing 200 side, the cam portion 330 of the lever portion 300 abuts against and presses the first protruding portion 130 of the first connector housing 100.

[0062] ·The third state when the second connector housing is being disengaged from the first connector housing As shown in FIG. 7C, the operator continues to lift the handle portion 310 of the lever portion 300 in the disengagement direction of the connector housing, i.e., upward.

[0063] At this time, the lever portion 300 is further rotated axially from the first connector housing 100 side toward the second connector housing 200 side, and the cam portion 330 of the lever portion 300 slides and presses against the first protrusion portion 130 of the first connector housing 100 from the position shown in FIG. 7B toward the upper end face side of the first protrusion portion 130.

[0064] ·The fourth state when the second connector housing is being disengaged from the first connector housing As shown in FIG. 7D, the operator continues to lift the handle portion 310 of the lever portion 300 in the disengagement direction of the connector housing, i.e., upward.

[0065] At this time, the lever portion 300 is further rotated axially more from the first connector housing 100 side toward the second connector housing 200 side, and the cam portion 330 of the lever portion 300 slides and presses against the first protrusion portion 130 of the first connector housing 100 from the position shown in FIG. 7C toward the upper end face side of the first protrusion portion 130.

[0066] ·The fifth state when the second connector housing is being disengaged from the first connector housing As shown in FIG. 7E, the operator continues to lift the handle portion 310 of the lever portion 300 in the disengagement direction of the connector housing, i.e., upward.

[0067] At this time, the lever portion 300 is further rotated axially more from the first connector housing 100 side toward the second connector housing 200 side, and the cam portion 330 of the lever portion 300 slides and presses against the first protrusion portion 130 of the first connector housing 100 from the position shown in FIG. 7D toward the upper end face side of the first protrusion portion 130.

[0068] · Sixth state when the disengagement of the second connector housing from the first connector housing is completed As shown in FIG. 7F, when the lever portion 300 abuts against the second protruding portion 230 of the second connector housing 200, the operator finishes lifting the handle portion 310 of the lever portion 300 in the disengagement direction of the connector housing, that is, upward.

[0069] At this time, the cam portion 330 of the lever portion 300 slides the first protruding portion 130 of the first connector housing 100 from the position in FIG. 7E further to the upper end side of the first protruding portion 130, and is positioned on the upper end surface of the first protruding portion 130, pressing the first protruding portion 130. By continuously pressing the first protruding portion 130 between the contact in FIG. 7B and the completion of the sliding in FIG. 7F, the cam portion 330 of the lever portion 300 can generate an upward reaction force, and due to this reaction force, it becomes possible to move the second connector housing 200 upward from the first connector housing 100. Thereby, it becomes possible to disengage the second connector housing 200 from the first connector housing 100.

[0070] As described above, by the axial rotation of the lever portion 300 from the first connector housing 100 side to the second connector housing 200 side, it becomes possible to release the lock of the lever portion 300 and disengage the pair of connector housings 100 and 200.

[0071] The lever - type connector of the present disclosure is not limited to the above - described embodiments. Within the scope of the present disclosure, modifications may be made as appropriate.

[0072] The lever - type connector of the present disclosure may adopt the following aspects. <1> A first connector housing having a first protruding portion on the outside, a second connector housing detachable from the first connector housing, a pair of lever portions rotatably provided on the second connector housing and having a locking portion and a cam portion provided at a location different from the locking portion, respectively, and an elastic member having one end attached to the second connector housing and the other end attached to the lever portion. The lever portion is axially rotated from the second connector housing side to the first connector housing side by the elastic member, and the locking portion is biased so as to be lockable to the first protruding portion of the first connector housing. When the lever portion is axially rotated from the first connector housing side to the second connector housing side, the locking portion is disengaged from the first protruding portion, and the cam portion of the lever portion can slide and press against the first protruding portion of the first connector housing. A lever type connector. <2> The lever type connector according to <1>, wherein the elastic member biases the lever portion so that the locking portion can automatically lock to the first protruding portion of the first connector housing. <3> The lever type connector according to <1> or <2>, wherein the sliding and pressing of the cam portion of the lever portion against the first protruding portion of the first connector housing enables upward movement of the second connector housing from the first connector housing. <4> The lever type connector according to any one of <1> to <3>, wherein both the locking portion and the cam portion are provided on one lever portion. <5> The lever type connector according to any one of <1> to <4>, wherein the locking portion of the lever portion has an inclined surface slidable on the first protruding portion of the first connector housing before the lever portion is axially rotated from the second connector housing side to the first connector housing side. <6> The locking portion of the lever portion extends from the upper end of the inclined surface and has a locking surface that can be locked to the first protrusion portion after the lever portion rotates about an axis from the second connector housing side to the first connector housing side. The lever-type connector according to <5>. <7> The cam portion of the lever portion has an outer curved surface. When the outer curved surface abuts against the first protrusion portion of the first connector housing, the cam portion is positioned such that the unlocking of the locking portion from the first protrusion portion can be started. The lever-type connector according to any one of <1> to <6>. <8> The first protrusion portion of the first connector housing has a circular contour surface. The lever-type connector according to any one of <1> to <7>. <9> The second connector housing has a second protrusion portion on its outer surface. When the lever portion rotates about an axis from the first connector housing side to a predetermined position of the lever portion on the second connector housing side and when the lever portion rotates about an axis from the second connector housing side to a predetermined position of the lever portion on the first connector housing side, the lever portion can abut against the second protrusion portion. The lever-type connector according to any one of <1> to <8>. <10> The second protrusion portion can regulate the axis rotation range of the lever portion from the first connector housing side to the second connector housing side and the axis rotation range of the lever portion from the second connector housing side to the first connector housing side. The lever-type connector according to <9>. <11> The elastic member is a torsion spring. The lever-type connector according to any one of <1> to <10>. <12> The lever portion further has a handle portion. The axis rotation direction of the lever portion from the second connector housing side to the first connector housing side is the downward rotation direction in which the handle portion of the lever portion approaches from the second connector housing to the first connector housing. The lever-type connector according to any one of <1> to <11>. <13> The lever portion further has a handle portion, and the axial rotation direction of the lever portion from the first connector housing side to the second connector housing side is the upward rotation direction in which the handle portion of the lever portion approaches from the first connector housing to the second connector housing. The lever-type connector according to any one of <1> to <12>. <14> In each of the pair of lever portions, the lock portion, the cam portion, and the elastic member are disposed opposite to each other on both sides with the second connector housing interposed therebetween. The lever-type connector according to any one of <1> to <13>. <15> The first connector housing is a device-side connector housing attached to a device, and the second connector housing is a cable-side connector housing to which a cable is attached. The lever-type connector according to any one of <1> to <14>.

Industrial Applicability

[0073] The lever-type connector of the present disclosure can be used in industrial machines that require prevention of dust or moisture intrusion and oil resistance.

Explanation of Signs

[0074] 1000 Lever-type connector 700 Cable clamp 600 Second inner housing 500 First inner housing 400 Elastic member 410 One end side of the elastic member 420 The other end side of the elastic member 300 Lever portion 310 Handle portion 320 Lock portion 321 Inclined surface of the lock portion 322 Locking surface of the lock portion 330 Cam portion circular contour surface 331 Outer curved surface of the cam portion 200 Second connector housing 210 Through hole of the second connector housing 220 Outer surface of the second connector housing 230 Second protrusion portion of the second connector housing 100 First connector housing 110 Space with an opening in the first connector housing 120 Outer surface of the second connector housing 130 First protrusion portion of the first connector housing 131 Contour surface of the first protrusion portion

Claims

1. A first connector housing having a first protrusion on its outer surface, a second connector housing detachable from the first connector housing, a pair of lever portions rotatably provided on the second connector housing and having a lock portion and a cam portion provided at a location different from the lock portion, and an elastic member having one end attached to the second connector housing and the other end attached to the lever portion, the lever portion is axially rotated from the second connector housing side to the first connector housing side by the elastic member, and the lock portion is biased so as to be capable of locking to the first protrusion of the first connector housing, when the lever portion is axially rotated from the first connector housing side to the second connector housing side, the lock portion is disengaged from the first protrusion, and the cam portion of the lever portion is slidable and pressable against the first protrusion of the first connector housing, a lever-type connector.

2. The lever-type connector according to claim 1, wherein the elastic member biases the lever portion so that the lock portion can automatically lock to the first protrusion of the first connector housing.

3. The lever-type connector according to claim 1, wherein the sliding and pressing of the cam portion of the lever portion against the first protrusion of the first connector housing enables upward movement of the second connector housing from the first connector housing.

4. The lever-type connector according to claim 1, wherein both the lock portion and the cam portion are provided on one lever portion.

5. The lever-type connector according to claim 1, wherein the lock portion of the lever portion has an inclined surface slidable on the first protrusion of the first connector housing before the lever portion is axially rotated from the second connector housing side to the first connector housing side.

6. The lever-type connector according to claim 5, wherein the lock portion of the lever portion has a locking surface extending from the upper end of the inclined surface and capable of locking to the first protrusion after the lever portion is axially rotated from the second connector housing side to the first connector housing side.

7. The cam portion of the lever portion has an outer curved surface, and when the outer curved surface of the cam portion abuts against the first protrusion portion of the first connector housing, the cam portion is positioned such that unlocking of the lock portion from the first protrusion portion can be started. The lever type connector according to claim 1.

8. The lever type connector according to claim 1, wherein the first protrusion portion of the first connector housing has a circular contour surface.

9. The second connector housing has a second protrusion portion on its outer surface, and when the lever portion rotates about its axis from the first connector housing side to a predetermined position of the lever portion on the second connector housing side and when the lever portion rotates about its axis from the second connector housing side to a predetermined position of the lever portion on the first connector housing side, the lever portion can abut against the second protrusion portion. The lever type connector according to claim 1.

10. The lever type connector according to claim 9, wherein the second protrusion portion can regulate the range of axial rotation of the lever portion from the first connector housing side to the second connector housing side and the range of axial rotation of the lever portion from the second connector housing side to the first connector housing side.

11. The lever type connector according to claim 1, wherein the elastic member is a torsion spring.

12. The lever portion further has a handle portion, and the axial rotation direction of the lever portion from the second connector housing side to the first connector housing side is the downward rotation direction in which the handle portion of the lever portion approaches from the second connector housing to the first connector housing. The lever type connector according to claim 1.

13. The lever portion further has a handle portion, and the axial rotation direction of the lever portion from the first connector housing side to the second connector housing side is the upward rotation direction in which the handle portion of the lever portion approaches from the first connector housing to the second connector housing. The lever type connector according to claim 1.

14. In each of the pair of lever portions, the lock portion, the cam portion, and the elastic member are disposed opposite to each other on both sides with the second connector housing interposed therebetween. The lever type connector according to claim 1.

15. The first connector housing is a device-side connector housing attached to a device, and the second connector housing is a cable-side connector housing to which a cable is attached. The lever-type connector according to claim 1.

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