KR20220150704A - Lever type connector - Google Patents

Abstract

The present invention relate to a lever-type connector. According to the present invention, a lever (30) is installed in a connector (10) to act as a lever and perform coupling and separation with a mating connector (50). A rotation center shaft (20) serving as a rotation center of the lever (30) may be formed and protrude from both outer surfaces of a housing (12), and a hook protrusion (22) may be formed on the rotation center shaft (20). A protrusion inclined surface (24) may be formed on both sides of the hook protrusion (22) to have a staggered inclination with respect to a protruding direction of the rotation center shaft (20). In addition, a rotation center hole (33) in which the rotation center shaft (20) is located may be formed in a mounting plate (31) of the lever (30). A hook end (34) may be formed in the rotation center hole (33), and a protrusion through slot (35) through which the hook protrusion (22) passes may be formed through the hook end (34). A slot inclined surface (35') may be formed on inner surfaces of both sides of the protrusion through slot (35), and the protrusion inclined surface (24) and the slot inclined surface (35') may have the same inclination. Also, an imaginary extended surface of the protrusion inclined surface (24) of the hook protrusion (22) on the rotation center shaft (20) on both sides are staggered with each other at a predetermined angle. Accordingly, incorrect mounting of the lever of the lever-type connector to the housing is prevented.

Description

Lever type connector {Lever type connector}

The present invention relates to a lever-type connector using the leverage principle.

A connector is made by installing one or more terminals of conductive material in a housing of insulating material. In general, a connector may perform electrical connection by being coupled with a mating connector. At this time, a coupling force is required to couple the terminals of the connector and the terminals of the counterpart connector, and since the coupling force increases as the number of terminals increases, a lever using the principle of leverage is sometimes employed.

The lever is rotatably installed on one side of the connector and has a guide channel for guiding the interlocking protrusion of the other side of the connector, thereby making coupling and separation of the connectors easier. For the convenience of coupling work, the installation position of the lever is set so that the interlocking protrusion of the other connector can enter the entrance of the guide channel. To this end, a pre-lock protrusion is placed so that the lever is temporarily fixed to a specific position on the housing.

In order to quickly engage the mating connector while releasing the temporarily fixed state of the lever, a structure capable of releasing the temporarily fixed state of the lever is placed in the housing of the mating connector, and when the connector and the mating connector are coupled, the lever As the temporary fixation of is released, the operator rotates the lever so that the connector and the mating connector are coupled.

The lever should be easily mounted to the housing of the connector and yet not be separated from the housing in the rotational position. To this end, a protrusion is formed on the axis of rotation, which is the center of rotation of the lever, and the protrusion is hung on the edge of the center hole formed in the lever. There is a problem that the operation of the lever is not possible because it can be mounted in the position.

In order to solve this problem, a method such as changing the number of protrusions on both sides of the central axis of rotation is used, but when the number of protrusions increases, the space through which the protrusions pass increases, and the strength of the hook end of the lever weakens, resulting in the operation of the lever There are times when this isn't quite right.

In addition, when the lever is rotated by an external force while the lever is installed in the connector housing in the free-lock state, the free-lock protrusion on the lever touches the outer surface of the housing, and the distance between the mounting plates on both sides of the lever increases, causing the lever to come out of the housing. There are also problems with being

Korean Patent Publication No. 10-2009-00047165 Korean Patent Publication No. 10-2019-0110018

An object of the present invention is to solve the conventional problems as described above, and to prevent a lever of a lever-type connector from being arbitrarily removed from a housing due to an external force.

An object of the present invention is to prevent erroneous mounting of a lever of a lever-type connector to a housing.

According to a feature of the present invention for achieving the above object, the present invention provides a housing in which a terminal installation space in which a terminal is installed is formed inside and coupling guide channels are formed on both sides from the front end toward the rear end, and projections on both sides A rotational center axis protruding from both sides of the housing with a hook protrusion having an inclined surface and a mounting plate formed with a rotation center hole in which the rotation center axis is located are located at positions corresponding to both sides of the housing, and the mounting plate is connected to the connecting portion. It may include a lever that is connected and serves as a lever when coupled with the mating connector, and a protrusion through slot through which the hook protrusion passes may be formed in the rotation center hole, and inner surfaces of both sides of the protrusion through slot have the protrusion. A slot inclined surface having an inclination corresponding to the inclination of the inclined surface may be formed, and virtual extensions of the protruding inclined surfaces of the hanging protrusions on both sides of the central axis of rotation may be staggered with a predetermined inclination.

According to another feature of the present invention, the present invention has a housing in which a terminal installation space in which a terminal is installed is formed and coupling guide channels are formed on both sides from the front end toward the rear end, and a hook protrusion on which protruding inclined surfaces are formed on both sides. A rotation center axis protruding from both sides of the housing and a mounting plate having a rotation center hole in which the rotation center axis is located are located at positions corresponding to both side surfaces of the housing, and the connection portion connects the mounting plate and engages with the mating connector. It may include a lever serving as a lever when the rotation center hole is formed with a protrusion through slot through which the hook protrusion passes, and a slot having an inclination corresponding to the inclination of the protrusion inclined surface on inner surfaces of both sides of the protrusion through slot. Inclined surfaces may be formed, and the protruding inclined surfaces of the hanging protrusions on both sides of the central axis of rotation are symmetrical to each other, and the imaginary extension of the protruding inclined surfaces may intersect with the protruding direction of the central axis of rotation.

An interlocking channel for guiding an interlocking protrusion of a mating connector located in the coupling guide channel and moving may be formed on the mounting plate of the lever.

A pre-lock protrusion may be formed on the mounting plate of the lever to be temporarily fixed to a position where an inlet of the interlocking channel coincides with an inlet of the coupling guide channel by hanging on one side of the housing.

An interference avoidance channel in which the pre-lock protrusion is located may be formed on an outer surface of the housing at a position where the lever is mounted and separated from the housing.

The interference avoidance channel may be formed to be long and extended parallel to the coupling guide channel at a position corresponding to the pre-lock protrusion.

The pre-lock protrusion may be formed inclined from one side to the other side.

The pre-lock protrusion may be located in the coupling guide channel in a temporarily fixed state.

The hook protrusion may protrude in a direction orthogonal to the protrusion direction of the rotation center axis, and protrusion inclined surfaces on both sides of the hook protrusion may be formed to be inclined at a predetermined angle with respect to the protrusion direction of the rotation center axis.

A hook end may be formed in the rotation center hole so that the hook end through which the hook protrusion is moved may be formed over a predetermined angular section, and the protrusion passage slot may be formed through the hook end.

The lever-type connector according to the present invention may have at least one or more of the following effects.

In the present invention, a hooking protrusion is formed on a rotation center shaft formed in a housing of a connector so as to be a rotation center of the lever, and protrusion inclined surfaces inclined with respect to the protrusion direction of the rotation center shaft may be formed on both sides of the hook protrusion. In addition, slot inclined surfaces corresponding to the protruding inclined surfaces may be formed on inner surfaces of both sides of the protruding passage slot formed in the rotational center hole of the lever where the central axis of rotation is located. The virtual extension lines of the protruding inclined surface and the slot inclined surface may be crossed by a rotation center axis on both sides of the housing and a rotation center hole on both sides of the mounting plate of the lever at a predetermined angle. Accordingly, it is possible to prevent the lever from being erroneously mounted to the housing in a state of being rotated by 180 degrees.

And, in the present invention, the pre-lock protrusion of the lever may be located in the interference avoidance channel formed on the outer surface of the housing at the position where the lever is mounted on the housing. Therefore, it is possible to prevent the mounting plate from moving away from the outer surface of the housing by the pre-lock protrusion, so that when the lever is in the mounting position while the lever is mounted on the housing, it is possible to prevent the lever from being separated from the housing.

1 is a perspective view showing the configuration of a preferred embodiment of a connector according to the present invention.
2 is a rear perspective view showing a housing constituting a connector of an embodiment of the present invention from a rear end;
Fig. 3 is a bottom perspective view showing a housing constituting a connector of an embodiment of the present invention from the bottom of the rear end;
Figure 4 is an enlarged view showing the configuration of the rotation center shaft in the housing of the embodiment of the present invention.
5 is a perspective view showing a lever constituting a connector of an embodiment of the present invention;
Fig. 6 is an enlarged perspective view showing the configuration of an important part of a lever constituting a connector of an embodiment of the present invention;
7 is an exploded perspective view showing the positional relationship between a connector and a mating connector in an embodiment of the present invention;
8 is an operating state diagram showing that a lever is in a pre-locked state in a connector according to an embodiment of the present invention.
9 is an operating state diagram showing that the connector of the embodiment of the present invention is coupled with the mating connector;
10 is a perspective view showing a state in which a lever can be coupled to and separated from a housing in a connector according to an embodiment of the present invention;
Fig. 11 is an explanatory view showing that the lever is properly assembled to the housing and positioned in the wrong assembly direction in the connector of the embodiment of the present invention;

Hereinafter, some embodiments of the present invention will be described in detail through exemplary drawings. In adding reference numerals to components of each drawing, it should be noted that the same components have the same numerals as much as possible even if they are displayed on different drawings. In addition, in describing an embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function hinders understanding of the embodiment of the present invention, the detailed description will be omitted.

Also, terms such as first, second, A, B, (a), and (b) may be used in describing components of an embodiment of the present invention. These terms are only used to distinguish the component from other components, and the nature, order, or order of the corresponding component is not limited by the term. When an element is described as being “connected,” “coupled to,” or “connected” to another element, that element may be directly connected or connected to the other element, but there may be another element between the elements. It should be understood that may be "connected", "coupled" or "connected".

As shown in the drawings, the housing 12 may form the frame and exterior of the lever-type connector 10 of the embodiment of the present invention. The housing 12 may be made of an insulating material. A terminal seating space 14 may be formed by penetrating the inside of the housing 12 back and forth. A terminal (not shown) made of a conductive material may be installed in the terminal seating space 14 .

Coupling guide channels 16 may be formed on both sides of the housing 12 . The coupling guide channel 16 may be opened to the front end of the housing 12 . The mating guide channel 16 is a part where the interlocking protrusion 54 of the mating connector 50, which will be described below, is positioned and moved. The coupling guide channel 16 may pass through the sidewall of the housing 12 and extend from the front end of the housing 12 toward the rear end. There is a reinforcing bridge 18 at the entrance of the coupling guide channel 16 . The reinforcing bridge 18 may reinforce the front end of the housing 12 by connecting both sides of the inlet of the coupling guide channel 16 .

Rotation center shafts 20 may protrude from both side surfaces of the housing 12 . The rotation center shaft 20 may be a rotation center of the lever 30 to be described below. The rotation center shaft 20 may be formed adjacent to an end portion of the coupling guide channel 16 .

A hook protrusion 22 may be formed on the rotation center shaft 20 . The hook protrusion 22 may protrude from one side of the side of the rotation center shaft 20 . The hook protrusion 22 may protrude perpendicularly to the protrusion direction of the rotation center shaft 20 . Protrusion inclined surfaces 24 may be formed on both sides of the hanging protrusion 22 . The protruding inclined surfaces 24 on both sides may be parallel to each other. As for the imaginary extended surfaces of the protrusion inclined surface 24, the hanging protrusions 11 on the rotation center shafts 20 on both sides may be staggered with each other with a predetermined inclination. Imaginary extension surfaces of the projection inclined surfaces 24 of the hook projection 22 on both sides may be parallel to each other, but in this case, misassembly may occur.

On the other hand, the protruding inclined surface 24 may be formed so that those of the rotation center axis 20 on both sides of the housing 12 are symmetrical with each other. This can be confirmed in FIG. 3 . Of course, the protruding inclined surface 24 should not be parallel to the protruding direction of the rotation center axis 20 and have a predetermined inclination.

There may be interference avoidance channels 26 on both sides of the outer surface of the housing 12 . The interference avoiding channel 26 may be formed to be recessed into the outer surface of the housing 12 . The interference avoidance channel 26 may extend parallel to the extension direction of the coupling guide channel 16 . The interference avoidance channel 26 may be positioned to face the inner surface of the mounting plate 31 of the lever 30 to be described below. The pre-lock protrusion 40 of the lever 30, which will be described below, is located in the interference avoiding channel 26 so that the mounting plate 31 does not move away from the housing 12, so that the lever 30 moves away from the housing 12. (12), and it is possible to prevent the mounting plate 31 from being separated from the housing 12. This is because the pre-lock protrusion 40 protruding on the inner surface of the mounting plate 31 is supported on the outer surface of the housing 12 in the absence of the interference avoidance channel 26, so that the mounting plate 31 protrudes and the lever 30 ) This is because it can be missing from the rotation center axis (20).

The lever 30 may have two mounting plates 31 . The mounting plates 31 may be side by side facing each other. A connecting portion 32 may be connected between the mounting plates 31 . The connecting portion 32 may be connected to the mounting plates 31 at right angles to each other.

A rotation center hole 33 may be formed in the mounting plate 31 . The rotation center shaft 20 may be positioned in the rotation center hole 33 . The rotation center hole 33 may be a rotation center of the mounting plate 31 . A hook end 34 may be located at a position corresponding to the outer surface of the mounting plate 31 among the edges of the rotation center hole 33 . The hanging protrusion 22 can be moved by being hung on the hanging end 34 . The hook end 34 may be formed only on a part of the edge of the rotation center hole 33 . The hanging end 34 may be formed only in an area at an angle at which the lever 30 rotates.

A protrusion passage slot 35 may be formed on one side of the hanging end 34 . The protrusion through slot 35 is a portion through which the hook protrusion 22 passes when the lever 30 is assembled. The hook protrusion 22 may pass through the protrusion passage slot 35 and be hooked to the hook end 34 . Inner surfaces of both sides of the protrusion through slot 35 may have a predetermined inclination. Inner surfaces on both sides of the protrusion through slot 35 are referred to as slot inclined surfaces 35'. The inclination of the slot inclined surface 35' may have an angle corresponding to that of the protruding inclined surface 24 of the hanging protrusion 22. Imaginary extended surfaces of the slot inclined surfaces 35' of the rotation center holes 33 of the mounting plates 31 on both sides of the lever 30 may be staggered at a predetermined angle.

Here, the slot inclined surfaces 35' may be formed so that the mounting plates 31 on both sides of the lever 30 are symmetrical to each other. Of course, the slot inclined surface 35' should have a predetermined angle and not be parallel to the formation direction of the rotational center hole 33.

Interlocking channels 36 may be formed in each of the mounting plates 31 . The interlocking channel 36 guides the interlocking protrusion 54 of the mating connector 50 to be described below. The interlocking channel 36 may gradually become farther away from the rotation center hole 33 as it goes from one side to the other side. Channel hanging ends 36' may be formed along both sides of the interlocking channel 36 in the width direction. A hanging piece 56, which will be described below, can be moved by being hung on the channel hanging end 36'. In this embodiment, the interlocking channel 36 is formed through the mounting plate 31, but the interlocking channel 36 may be formed to extend in a groove shape on the inner surface of the mounting plate 31.

An inlet 37 of the interlocking channel 36 may be formed at one edge of the mounting plate 31 . The distance from the inlet 37 to the rotation center hole 33 is longer than the distance from each part of the interlocking channel 36 to the rotation center hole 33. An inlet bridge 38 may be present at the inlet 37 of the interlocking channel 36. The inlet bridge 38 connects both sides of the interlocking channel 36 to reinforce the strength of the mounting plate 31 .

There may be a pre-lock protrusion 40 at a position corresponding to the entrance bridge 38 on the inner surface of the mounting plate 31 . The pre-locking protrusion 40 is normally hung on the inner surface of one side of the coupling guide channel 16 to prevent the lever 30 from rotating arbitrarily. When the interlocking protrusion 54 of the mating connector 50 enters the inlet 17 of the mating guide channel 16, the pre-lock protrusion 40 is pushed up and exits the mating guide channel 16. Thus, the lever 30 can rotate. The pre-lock protrusion 40 may be formed to be inclined while going from one side to the other side.

The configuration of the mating connector 50 coupled with the connector 10 of the present invention will be briefly described with reference to FIG. 7 . The mating housing 52 may form the outer appearance and skeleton of the mating connector 50 . The mating housing 52 may be formed of an insulating material. A terminal seating space 53 may be formed through the mating housing 52 .

Interlocking protrusions 54 may be formed on both outer surfaces of the mating housing 52 . The interlocking protrusion 54 may move along the coupling guide channel 16 formed in the housing 12 and simultaneously move along the interlocking channel 36 of the lever 30 . A hook piece 56 may be formed at the front end of the interlocking protrusion 54 . The hook piece 56 may have a substantially elliptical plate shape. The hook piece 56 protrudes from both ends of the interlocking protrusion 54 and can be moved by being seated on the channel hanging end 36' of the interlocking channel 36. The hook piece 56 can prevent the mounting plate 31 of the lever 30 from falling off the outer surface of the housing 12 .

Hereinafter, the use of the lever-type connector according to the present invention having the above configuration will be described in detail.

In order for the connector 10 to be coupled with the mating connector 50, the lever 30 is mounted on the housing 12 in a state as shown in FIG. This state is said to be that the lever 30 is in a pre-lock state. At this time, the pre-lock protrusion 40 is hung on the coupling guide channel 16 of the housing 12, so it does not rotate unless a certain amount of force is applied.

When the connector 10 is put into the assembly line in this state, the mating connector 50 can be coupled. As shown in FIG. 7, the mating connector 50 is located in front of the connector 10, and the interlocking protrusion 54 of the mating housing 52 extends through the mating guide channel 16 of the housing 12. It is located at the inlet 37 of the interlocking channel 36 of the inlet and lever 20. In this state, when the distance between the connector 10 and the mating connector 50 becomes closer, the interlocking protrusion 54 simultaneously enters the interlocking channel 36 and the coupling guide channel 16, and the pre-lock protrusion ( 40) can be released from the coupling guide channel 16. Accordingly, the lever 20 moves the interlocking protrusion 54 while being rotated in the direction of the arrow in FIG. 7 .

As the interlocking protrusion 54 moves along the interlocking channel 36 and the coupling guide channel 16, the connector 10 and the mating connector 50 are coupled, and the terminals may also be coupled. 9 shows a state in which the connector 10 and the mating connector 50 are coupled.

Meanwhile, the connector 10 and the mating connector 50 may be separated by rotating the lever 30 in the opposite direction. As the distance between the connector 10 and the mating connector 50 increases by the rotation of the lever 30, separation may be achieved.

Mounting and separation of the lever 30 from the housing 12 will be described. The lever 30 may be mounted to and separated from the housing 12 at a position as shown in FIG. 10 . In this case, a hook protrusion 22 is formed on the rotation center shaft 20 of the housing 12, and a protrusion through slot 35 is formed in the rotation center hole 33 formed on the mounting plate 31 of the lever 30. because it is formed That is, coupling and separation are possible only when the positions of the hook protrusion 22 and the protrusion passage slot 35 are matched.

In addition, the inclined direction of the protruding inclined surface 24 of the hook protrusion 22 and the inclining direction of the slot inclined surface 35' of the protruding slot 35 must match in order for the lever 30 to be coupled to and separated from the housing 12. can

Therefore, as can be seen in (a) of FIG. 11, the position of the protrusion through slot 35 of the lever and the inclination of the slot inclined surface 35' are the same as the position of the hook protrusion 22 of the housing 12. Assembly and separation can be achieved only when the slopes of the inclined surfaces 24 coincide with each other.

11(b) shows a state in which the lever 30 rotates 180 degrees in the direction of arrow A and then rotates 180 degrees in the direction of arrow B again in the state of FIG. 11 (a). In this state, although the positions of the hook protrusion 22 and the protrusion through slot 35 coincide, assembly cannot be performed because the inclination of the slot inclined surface 35' and the protruding inclined surface 24 do not match. For reference, if the slot inclined surface 35' and the protruding inclined surface 24 are parallel to the direction of forming the rotation center hole 33 and the hook protrusion 22, respectively, the lever 30 even at the position of FIG. 11 (b) is coupled to the housing 12 and can be separated. However, the lever 30 cannot be coupled to the housing 12 at the position (b) of FIG. 11 due to the inclination of the slot inclined surface 35' and the protruding inclined surface 24. Therefore, in the present invention, the lever 30 can be coupled to and separated from the housing 12 only at the position shown in (a) of FIG. 11 .

And, at the position of (a) of FIG. 11, the pre-lock protrusion 40 is located in the interference avoidance channel 26 and does not act on the force to move the mounting plate 31 away from the outer surface of the housing 12. will not be Therefore, the mounting plate 31 does not move away from the outer surface of the housing 12 . This means that even if the lever 30 is in the position shown in (a) of FIG. 11, the mounting plate 31 is not moved away from the outer surface of the housing 12 by the pre-lock protrusion 40. . That is, because of the pre-lock protrusion 40, the mounting plate 31 does not receive a force separating the housing 12.

In the above, even though all the components constituting the embodiment according to the present invention have been described as being combined or operated as one, the present invention is not necessarily limited to these embodiments. That is, within the scope of the object of the present invention, all of the components may be selectively combined with one or more to operate. In addition, terms such as "comprise", "comprise" or "having" described above mean that the corresponding component may be present unless otherwise stated, and thus exclude other components. It should be construed as being able to further include other components. All terms, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Commonly used terms, such as terms defined in a dictionary, should be interpreted as being consistent with the contextual meaning of the related art, and unless explicitly defined in the present invention, they are not interpreted in an ideal or excessively formal meaning.

The above description is merely an example of the technical idea of the present invention, and various modifications and variations can be made to those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

10: connector 12: housing
14: Terminal seating space 16: Combination guidance channel
18: reinforcement bridge 20: rotation center axis
22: hook protrusion 24: protrusion slope
26: interference avoidance channel 30: lever
31: mounting plate 32: connection part
33: rotation center hole 34: hanging end
35: projection through slot 35 ': slot slope
36: interlocking channel 36': channel hanging stage
37: channel entrance 38: entrance bridge
40: pre-lock protrusion 50: mating connector
52: relative housing 53: terminal seating space
54: interlocking protrusion 56: hook

Claims (10)

A housing in which a terminal installation space in which a terminal is installed is formed and coupling guide channels are formed on both sides from the front end toward the rear end;
A rotational center shaft having protruding protrusions on both sides of which protruding inclined surfaces are formed and protruding from both side surfaces of the housing;
A mounting plate having a rotation center hole in which the rotation center axis is located is located at a position corresponding to both side surfaces of the housing, and a lever connecting the mounting plate with a connecting portion and serving as a lever when coupled with a mating connector,
A protrusion through slot through which the hanging protrusion passes is formed in the rotation center hole, and a slot inclined surface having an inclination corresponding to that of the protrusion inclined surface is formed on inner surfaces of both sides of the protrusion through slot,
A connector in which virtual extension surfaces of the protruding inclined surfaces of the hook protrusions on the rotation center axis on both sides are staggered with a predetermined inclination.
A housing in which a terminal installation space in which a terminal is installed is formed and coupling guide channels are formed on both sides from the front end toward the rear end;
A rotational center shaft having protruding protrusions on both sides of which protruding inclined surfaces are formed and protruding from both side surfaces of the housing;
A mounting plate having a rotation center hole in which the rotation center axis is located is located at a position corresponding to both side surfaces of the housing, and a lever connecting the mounting plate with a connecting portion and serving as a lever when coupled with a mating connector,
A protrusion through slot through which the hanging protrusion passes is formed in the rotation center hole, and a slot inclined surface having an inclination corresponding to that of the protrusion inclined surface is formed on inner surfaces of both sides of the protrusion through slot,
The protruding inclined surfaces of the hook protrusions on both sides of the rotational center axis are left and right symmetrical with each other, and the imaginary extension of the protruding inclined surfaces is crossed with the protruding direction of the rotational center axis.
The connector according to claim 1 or 2, wherein an interlocking channel is formed on the mounting plate of the lever to guide the interlocking protrusion of the mating connector positioned in the mating guide channel and moving.
4. The connector according to claim 3, wherein a pre-lock protrusion is formed on the mounting plate of the lever to be temporarily fixed at a position where an inlet of the interlocking channel coincides with an inlet of the coupling guide channel by being hooked on one side of the housing.
5. The connector according to claim 4, wherein an interference avoidance channel in which the pre-lock protrusion is located is formed on an outer surface of the housing at a position where the lever is mounted to and separated from the housing.
[6] The connector according to claim 5, wherein the interference avoidance channel is formed to be extended parallel to the coupling guide channel at a position corresponding to the pre-lock protrusion.
7. The connector according to claim 6, wherein the pre-lock protrusion is inclined from one side to the other side.
The connector according to claim 7, wherein the pre-lock protrusion is located in the mating guide channel in a temporarily fixed state.
The connector according to claim 1, wherein the hook protrusion protrudes in a direction orthogonal to the protrusion direction of the rotation center axis, and protrusion inclined surfaces on both sides of the hook protrusion are inclined at a predetermined angle with respect to the protrusion direction of the rotation center axis.
10. The connector according to claim 9, wherein a hook end is formed in the rotation center hole, the hook end through which the hook protrusion is hooked and moved is formed over a predetermined angular section, and the protrusion through slot is formed through the hook end.

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