KR20210123060A - One Touch Socket - Google Patents

Abstract

The present invention relates to a one touch power outlet, comprising: a recovery unit which includes a cover having a first terminal hole corresponding to a plug terminal, and a second terminal hole corresponding to a grounding terminal, an elevation unit sliding and moving along with the cover in a direction of engaging or removing the plug by being engaged with a lower side of the cover, and being elastically pressurized in a direction of removing the plug, and a rotation unit selectively opening/closing the first terminal hole between the cover and the elevation unit; a housing having a guide groove formed to guide the sliding movement of the recovery unit, and having a power terminal connected to an external power supply and exposed to an inner bottom surface; and a switching unit allowing the power terminal to be engaged with the plug terminal as the recovery unit is lowered when the recovery unit is pressurized by the plug, and removing the plug to the outside of the housing by elastically elevating the recovery unit when the recovery unit is pressurized again. The present invention aims to provide a one touch power outlet which is capable of detaching a plug by elastic recovery force.

Description

One Touch Socket {One Touch Socket}

The present invention relates to a one-touch outlet, and to a one-touch outlet capable of easily attaching and detaching a plug on the outlet.

In general, a socket refers to a device for inserting a plug by connecting to a wiring in order to connect a cord used indoors in an indoor wiring of electricity.

These outlets include a structure that is embedded in a wall or a pillar, and a structure that is installed to be movable depending on the location of the electronic product, such as a multi-tap.

Among them, the multi-tap has a plurality of sockets of 2 or more so that multiple electronic products can be connected at the same time by being connected to a single outlet, and has a function to selectively cut off the power of sockets corresponding to unused electronic products. Therefore, it is widely used in various fields.

However, since the process of detaching the plug requires a lot of force from the user compared to the process of attaching the plug to the outlet, there is a problem in that the elderly or people with disabilities complain of difficulty in detaching the plug.

The present invention is to solve such a problem, and more particularly, to provide a one-touch outlet in which a mounting structure into which the plug is inserted to be connected to a power source can detach the plug through elastic restoring force in the process of detaching the plug. There is this.

Another object of the present invention is to provide a one-touch outlet capable of safely shielding the outlet hole so that electricity is not energized even when an infant inserts a metal material such as chopsticks into the outlet hole into which the plug is inserted into the outlet.

In addition, the present invention shields the grounding terminal, which is in contact with the plug and serves as the grounding path, from the outside of the outlet, so that foreign substances such as dust are introduced into the outlet that is not used for a long period of time, or one-touch that can prevent the grounding terminal from being contaminated. Another purpose is to provide an outlet.

In order to solve the above problems, the present invention provides a cover in which a first terminal hole corresponding to a plug terminal is formed and a second terminal hole corresponding to a ground terminal is formed, and the cover is coupled to the lower portion of the cover to connect or remove the plug. a restoration unit including a lifting unit that slides together with the cover along a direction but is elastically pressed in a direction in which the plug is removed, and a rotating unit that selectively opens and closes the first terminal hole between the cover and the lifting unit; a housing in which a guide groove for guiding the sliding movement of the restoration unit is formed and a power terminal connected to an external power source is exposed on an inner bottom surface; and a switching unit for removing the plug to the outside of the housing by elastically raising the restoration unit when the restoration unit is pressed with a plug, the restoration unit descends, the plug terminal is coupled to the power terminal, and when the restoration unit is pressed again. A one-touch outlet can be provided.

The rotating part includes an inclined surface contacting the plug terminal while being inserted into the first terminal hole; It may include a connecting portion that rotates the contact portion to open the first terminal hole when pressed by the pressure, and a first elastic portion that provides a restoring force to the contact portion or the connecting portion.

The inclined surface is formed to have a smaller area than the flat surface, and when the rotating part is formed as a pair, the pair of rotating parts must be simultaneously pressed to rotate to open the first terminal hole.

The restoration unit includes a grounding cap selectively opening and closing the second terminal hole, and the grounding cap interferes with the grounding terminal exposed inside the housing when the restoration unit is pressed and descends to be horizontal on the lifting unit. The second terminal hole can be opened and closed by sliding movement in the direction.

The switching unit includes a central frame having one end vertically coupled to the lower center of the lifting unit and inserted into an operation hole formed in the center of the bottom surface of the housing, and coupled to the center of the central frame in a vertical direction to the central frame. A transfer member for transporting at the same time, a rotating member coupled to the other end of the center frame to rotate the center frame as an axis by interference with the transfer member while sliding within the operation hole, and the inner peripheral surface of the operation hole at equal intervals It is arranged side by side to guide the sliding movement of the rotating member, and at the same time, while the rotating member rotates may include an operation member that is interfered with or interfered with in the restoration direction while rotating.

The switching unit includes a first tooth pattern formed on a portion of the transfer member in contact with the rotary member, a second tooth pattern on the rotary member that meshes with the first tooth pattern, and the second tooth pattern on the operation member and a third tooth pattern meshing with the pattern, wherein the second tooth pattern is in contact with the first tooth pattern so that a force is applied in a sliding transfer direction and a rotation direction, and the rotating member is located at the outer periphery of the transfer member. It may have the same diameter as the guide member protruding to correspond to the gap between the operation members.

According to the one-touch outlet of the present invention, since the rotating part rotates only when the plug terminals are inserted into the first terminal holes on both sides before the plug is inserted into the outlet, it is possible to prevent a safety accident from occurring.

In addition, since the grounding terminal is exposed while the plug is installed in the outlet, there is an effect of preventing foreign substances from sticking while the grounding terminal is exposed to the unused outlet.

In addition, since the plug can be mounted and detached in a one-touch method with one hand, there is an effect that the old and the weak can easily detach the plug even for the disabled.

1 is a perspective view showing the appearance of a one-touch outlet according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view showing an outer cover of the one-touch outlet shown in FIG. 1 removed.
3 is an exploded perspective view showing the inside of any one housing of the one-touch outlet shown in FIG. 2 separated.
Fig. 4 is a partially enlarged perspective view showing a part of the rear surface of the cover shown in Fig. 3 on an enlarged scale;
5 is a perspective view showing a state in which the rotating part shown in FIG. 4 is rotated.
6 and 7 are plan views illustrating a state in which the rotating part shown in FIGS. 4 and 5 rotates, respectively.
Fig. 8 is a front view showing the contact portion shown in Fig. 6 from the front;
9 is a perspective view showing an upper portion of the restoration shown in FIG. 3 .
10 to 12 are perspective views illustrating a state in which the restoration unit of FIG. 9 descends in stages.
FIG. 13 is a side view showing the side surfaces of the restoration unit, the switching unit and the housing shown in FIG. 3 .
Fig. 14 is an enlarged side view of the switching unit shown in Fig. 13;
Fig. 15 is an exploded view showing the switching unit shown in Fig. 14 in isolation;
16 is a perspective view illustrating a state in which the switching unit shown in FIG. 3 is inserted into an operation hole of the housing.
Fig. 17 is a rear perspective view showing the switching unit shown in Fig. 16 from the rear side of the housing;
18 is a rear perspective view illustrating a state in which the switching unit of FIG. 16 rotates so that the rotating member and the operating member interfere with each other.
19 and 20 are reference diagrams showing the power supply terminal shown in FIG.
21 and 22 are reference diagrams illustrating an embodiment different from the power supply terminal shown in FIG. 3 .

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the technical field to which the present invention belongs It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims.

The shapes, sizes, proportions, angles, numbers, etc. disclosed in the drawings for explaining the embodiments of the present invention are illustrative and the present invention is not limited to the illustrated matters. Like reference numerals refer to like elements throughout. In addition, in describing the present invention, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted. When 'including', 'having', 'consisting', etc. mentioned in this specification are used, other parts may be added unless 'only' is used. When a component is expressed in the singular, the case in which the plural is included is included unless otherwise explicitly stated.

In interpreting the components, it is interpreted as including an error range even if there is no separate explicit description.

In the case of a description of the positional relationship, for example, when the positional relationship of two parts is described as 'on', 'on', 'on', 'beside', etc., 'right' Alternatively, one or more other parts may be positioned between the two parts unless 'directly' is used.

In the case of a description of a temporal relationship, for example, 'immediately' or 'directly' when a temporal relationship is described with 'after', 'following', 'after', 'before', etc. It may include cases that are not continuous unless this is used.

Although the first, second, etc. are used to describe various components, these components are not limited by these terms. These terms are only used to distinguish one component from another. Accordingly, the first component mentioned below may be the second component within the spirit of the present invention.

In describing the components of the present specification, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, order, or number of the elements are not limited by the terms. When it is described that a component is “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but other components may be interposed between each component. It will be understood that each component may be “interposed” or “connected”, “coupled” or “connected” through another component.

The one-touch outlet 100 according to an embodiment of the present invention includes a restoration unit 110 , a housing 120 , and a switching unit 130 . Although the one-touch outlet 100 of the present invention is illustrated as an example applied in a multi-tap structure in the drawings, it is of course also applicable as an outlet of a buried structure installed on a wall, pillar, furniture, or the like.

Referring to the drawings, the restoration unit 110 includes a cover 111 , a lifting unit 112 , and a rotating unit 113 . The restoration unit 110 is a portion that comes into contact with the first while inserting the plug into the outlet, and is elastically slid within the housing 120 by the pressing force that is mounted while the plug terminal is inserted into the restoration unit 110 . In order to mount the plug in this way, when the user applies pressure to the plug, the restoration unit 110 moves to the lower surface of the housing 120 and is located, and when the user applies pressure to the plug to remove the plug again, the restoration unit 110 is The plug may be separated by a restoring force moving toward the upper surface of the housing 120 . Here, since the direction in which the user applies pressure to the plug is applied in the same direction as the direction of plug mounting and removal of the plug, to remove the plug from the existing outlet, hold the area around the outlet with both hands or push the The inconvenience of having to pull the plug can be eliminated. In addition, the elderly or the handicapped can easily remove the plug.

The cover 111 is formed in a plate shape with a first terminal hole 1111 into which a plug terminal is inserted, and a second terminal hole 1112 through which a ground terminal of an outlet in contact with the ground area of the plug is exposed. The position or number of the first terminal hole 1111 and the second terminal hole 1112 may vary according to the structure of the plug or outlet for each country. In an embodiment of the present invention, a structure in which a plug (aka "pig nose" shape) is coupled to a 220V outlet used in Korea will be described as an example.

The lifting unit 112 is coupled to the lower portion of the cover 111 . The lifting unit 112 may slide inside the housing 120 in a state in which the cover 111 and the lifting unit 112 are coupled. A spring s1 may be interposed between the lifting unit 112 and the housing 120 so that the lifting unit 112 may elastically generate a restoring force inside the housing 120 . The lifting unit 112 may also have a structure corresponding to the first terminal hole 1111 and the second terminal hole 1112 of the cover. In addition, the elevating part 112 may be provided with an extension member 1121 whose rear surface is partially extended downward and into which the spring s1 is inserted. In addition, the extension member 1121 may be inserted into the inner bottom surface of the housing 120 to guide the sliding movement of the lifting unit 112 .

The rotating unit 113 is disposed between the cover 111 and the lifting unit 112 . The rotating part 113 may be a safety device capable of opening the first terminal hole 1111 by rotating only when the plug is inserted into the first terminal hole 1111 . The rotating part 113 includes a pair of contact parts 1133 including an inclined surface 1131 contacting the plug terminal, and a plane 1132 disposed around the inclined surface 1131 and having a height lower than the inclined surface 1131, and one The connecting portion 1134 connected to the pair of contact portions 1133 and rotatably coupled on the lifting unit 112, and the contact portion 1133 when the first terminal hole 1111 is opened, the connecting portion 1134 is restored to the original It includes an elastic part 1135 that provides a restoring force to rotate in the direction.

The contact part 1133 may generate a rotational force while the plug terminal contacts the inclined surface 1131 . At this time, when the plug terminal contacts only one of the pair of contact parts 1133 , the rotational movement of the rotating part 113 is not made. That is, the connecting portion 1134 can rotate when the same force is applied to the contacting portion 1133, and when force is applied to only one of the contacting portions, the other contacting portion is relatively high compared to any one of the contacting portions. It may interfere with the inner periphery of the first terminal hole 1111 of the cover 111 while being worn. For example, when children insert a metal rod, such as chopsticks, into the first terminal hole 1111, the rotating part 113 does not rotate, so it prevents electricity from being energized with the power terminal 122, thereby preventing safety accidents such as electric shock. can be prevented in Also, the inclined surface 1131 is disposed at the center portion of the plane to correspond to the plug terminal. That is, even if chopsticks or needles with a smaller cross-sectional area than the plug terminal are inserted into the first terminal hole 1111, it is difficult to accurately contact the inclined surface 1131, and since rotation is prevented by inserting only one side, safety accidents are prevented in advance. It is possible to provide an outlet structure that can do this.

In addition, the rotating part 113 may be provided with a restoring force by the elastic part 1135 of the torsion spring structure provided on the lifting part 112, and a spring coupling structure provided in the contact part 1133 on one side of the rotating part 113 ( A restoring force may be provided from the lifting unit 112 by coupling a separate spring to the 1136 .

As shown in FIG. 9 , the second terminal hole 1112 on the cover 111 is closed by the ground cap 114 . The grounding cap 114 is a structure that shields the grounding terminal 11, and prevents foreign substances such as dust from adhering to the grounding terminal in an outlet or multi-tap that is not frequently used, thereby preventing a faulty connection with the grounding area of the plug. In the process of mounting the plug, the ground terminal 11 is opened so as to be exposed and can be in contact with the ground terminal of the plug.

10 is a state in which the grounding cap 114 completely closes the second terminal hole 1112 (refer to FIG. 9 ), FIG. 11 is a state in which the second terminal hole 1112 is partially opened, and FIG. 12 shows the second terminal The hole 1112 represents a fully opened state. The ground cap 114 is coupled to slide in the horizontal direction in the second terminal hole 1112 of the lifting unit 112 when the restoration unit 110 ascends and descends while interfering with the inclined outer portion of the ground terminal 11 . . Although not shown in the drawings, a guide protrusion may be provided on a side surface of the grounding cap 114 , and a guide groove corresponding to the guide protrusion may be formed on an inner surface of the second terminal hole 1112 . In addition, a spring for pushing the grounding cap 114 from the lifting unit 112 to the grounding terminal 11 is provided so that when the restoring unit 110 descends, the second terminal hole 1112 is opened, and the restoring unit 110 is provided. When is rising, an elastic restoring force may be provided to close the second terminal hole 1112 .

Although not shown in the drawings, the grounding cap 114 may be applied to a structure that opens and closes the second terminal hole 1112 while rotating on the lifting unit 112 in addition to a structure that slides in the horizontal direction.

In the housing 120, the restoration part 110 is accommodated therein, and guide grooves 121 (refer to FIG. 3) facing each other are formed so as to slide in the vertical direction. 2 and 3 , a plurality of housings 120 may be provided according to the number of plug connections. For example, in FIG. 2 , four housings 120 and one switch 12 are provided between the case top 10 and the case bottom 20 as an example.

The housing 120 may have a power terminal 122 connected to an external power source disposed on an inner bottom surface thereof or may be exposed. Of course, the power terminal 122 may be coupled to the case bottom 20 , and the housing 120 may have a structure coupled to the case bottom 20 . In this embodiment, a structure in which the housing 120 is formed in a cylindrical shape and the power terminal 122 and the ground terminal 11 are exposed on the inner bottom will be described as an example.

13 is a side view of the restoration unit 110, the switching unit 130, and the housing 120, FIG. 14 is an enlarged view of only the switching unit 130, and FIG. 15 is the switching unit 130 in the housing ( It shows a state inserted into the operation hole 123 of the 120, FIGS. 16 and 17 show a state in which the switching unit 130 is operated in the operation hole 123 on the rear surface of the housing 120.

13 to 17 , the switching unit 130 slides on the operation hole 123 and rotates at the same time so that the restoration unit 110 maintains a lowered state in the housing 120 or as it rises, the plug may lead to the removal of

The switching unit 130 includes a central frame 131 , a transfer member 132 , a rotation member 133 , and an operation member 134 .

One end of the center frame 131 may be coupled through the rear surface of the lifting unit 112 or through the lifting unit 112 , and may be coupled through the transfer member 132 and the rotating member 133 . A rotating shaft of the rotating unit 113 on the lifting unit 112 may be coupled to one end of the central frame 131 .

The transfer member 132 is coupled to the central region of the central frame 131 , and may slide and move in conjunction with the central frame 131 . The transfer member 132 is provided with a guide member 1321 protruding from the outer periphery, and a first tooth pattern 1322 is formed on a surface facing the rotation member 133 .

The rotating member 133 faces the first tooth pattern 1322 to form a second tooth pattern 1331 , and is pressed by the transfer member 132 to slide and transfer the first tooth pattern 1322 and the second tooth pattern 1322 . As the tooth pattern 1331 meshes, a rotational force is generated. The guide member 1321 and the rotating member 133 are slidingly moved at an interval between the operation member 134 , and the rotating member 133 is in the meshing of the first tooth pattern 1322 and the second tooth pattern 1331 . Interference occurs in the sliding direction by further rotating by the inclined surface of the third tooth pattern 1341 formed on the operation member 134 while rotating by the rotational force generated by the rotational force. This allows the plug to remain engaged with the outlet. The process of disconnecting the plug from the outlet may be performed by repeating the same cycle by sliding and rotating movements of the switching unit 130 .

The operation members 134 are fixed to the inner periphery of the operation hole 123 of the housing 120 at equal intervals.

The operation member 134 may have a larger diameter than the rotation member 133 . Also, the operation member 134 may have the same diameter as the diameter of the rotation member 133 including the guide member 1321 . The operation hole 123 on the rear surface of the housing 120 may be shielded by a separate cover.

Accordingly, when the restoration unit 110 is pressed with a plug, the restoration unit 110 descends, the plug terminal and the power terminal 122 are connected, and the rotation member 133 is a third tooth pattern 1341 of the operation member 134 . The lowered position of the restoration unit 110 is maintained while being interfered with. In addition, when the plug or the restoration unit 110 is pressed again, the rotating member 133 slides at an interval between the operation members 134 while the conveying member 132 further rotates the rotating member 133, so that the restoration unit is elastically raised. By doing so, the plug is separated from the restoration unit 110 . That is, if the plug is pressed once, it is mounted on the outlet, and if the plug is pressed again, it is removed from the outlet.

19 and 20 are reference diagrams showing the power supply terminal shown in FIG.

Referring to FIGS. 19 and 20 , the power terminal 122 includes a first frame 1221 elongated and a plurality of second frames bent from the first frame 1221 to correspond to the position of each housing 120 . (1222).

The length of the first frame 1221 may be changed according to the number of housings 120 . Also, the first frame 1221 may have a protrusion structure or a groove structure so as to interfere with the housing 120 or the cover bottom 20 while being coupled to the housing 120 or the cover bottom 20 .

The second frame 1222 may be coupled to a position set on the first frame 1221 , or may have a structure integrally bent from the first frame 1221 .

The second frame 1222 includes a third frame 1223 into which the plug terminal is inserted. The third frame 1223 extends from the second frame 1222 to both sides to form a shape corresponding to one first terminal hole 1111 (refer to FIG. 3 ), and to be elastically stretched when in contact with the plug terminal. One cross-section may have a “Ω” shape. The third frame 1223 may be formed to have a wider diameter at a portion where the plug terminal first contacts, so that coupling may be facilitated.

21 and 22 are reference diagrams illustrating an embodiment different from the power supply terminal shown in FIG. 3 .

21 and 22 , the power terminal 222 includes a first frame 2221 extending long and a plurality of second frames bent from the first frame 2221 corresponding to the position of each housing 120 . (2222).

The second frame 2222 includes a first region 2223 bent to one side of the first frame 2221 and a second region 2224 bent in the opposite direction to the first region 2223 . In this case, a plug terminal is inserted between the first region 2223 and the second region 2224 . The first area 2223 and the second area 2224 have a size corresponding to the first terminal hole 1111 (refer to FIG. 3 ), and the first area 2223 is bent into a plurality of areas, and a second area is formed in the space therebetween. Region 2224 may be disposed.

The second region 2224 has a shape in which one end is cut from the first frame 2221 , and the cut portion 2225 may be elastically spaced apart from the first region 2223 . 9(a) shows a state in which the cut portion of the second region 2224 is relaxed from the first frame 2221 before the plug terminal is inserted, and FIG. 9(b) shows the state in which the plug terminal is inserted. It represents a state in which the cut portion of the second region 2224 is elastically opened so as to be adjacent to the first frame 2221 . Accordingly, the plug terminal may elastically contact the second frame 2222 . This structure is easier to manufacture compared to the structure of the power terminal 122 of FIGS. 19 and 20, and has the effect of reducing the manufacturing cost.

According to the one-touch outlet of the present invention, it is possible to prevent a safety accident from occurring because the rotating part rotates only when the plug terminals are inserted into the first terminal holes on both sides before the plug is inserted into the outlet. As the grounding terminal is exposed while being used, it is possible to prevent foreign substances from sticking to the outlet as the grounding terminal is exposed to unused outlets. It has a detachable effect.

Features, structures, effects, etc. described in the above-described examples of the present application are included in at least one example of the present application, and are not necessarily limited to only one example. Furthermore, features, structures, effects, etc. illustrated in at least one example of the present application may be combined or modified with respect to other examples by those of ordinary skill in the art to which the present application belongs. Accordingly, the contents related to such combinations and modifications should be interpreted as being included in the scope of the present application.

The present application described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the technical field to which this application belongs that various substitutions, modifications, and changes are possible within the scope not departing from the technical matters of the present application. It will be clear to those who have the knowledge of Therefore, the scope of the present application is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present application.

100: one-touch outlet
110: restoration unit
120: housing
130: switching unit

Claims (6)

A cover having a first terminal hole corresponding to the plug terminal and a second terminal hole corresponding to the ground terminal is formed, and the cover is coupled to the lower portion of the cover and slides together with the cover along the direction of coupling or removal of the plug, but the plug a restoration unit comprising: a lifting unit elastically pressed in the removal direction of the unit; and a rotating unit selectively opening and closing the first terminal hole between the cover and the lifting unit;
a housing in which a guide groove for guiding the sliding movement of the restoration unit is formed and a power terminal connected to an external power source is exposed on an inner bottom surface; and
a switching unit for removing the plug to the outside of the housing when the restoration unit is pressed with a plug, the restoration unit descends, the plug terminal is coupled to the power terminal, and when the restoration unit is pressed again, the restoration unit rises elastically;
One-touch outlet that includes. The method according to claim 1,
The rotating part,
a contact portion disposed to face the plug terminal, including an inclined surface contacting the plug terminal while being inserted into the first terminal hole, and a plane formed around the inclined surface having a height lower than that of the inclined surface;
a connection part for rotating the contact part so as to open the first terminal hole when the contact part is pressed by a plug terminal;
One-touch outlet including a first elastic portion for providing a restoring force to the contact portion or the connection portion. 3. The method according to claim 2,
The inclined surface is formed to have a smaller area than the flat surface,
When the rotating part is made of a pair, the one-touch outlet rotates only when the pair of rotating parts are simultaneously pressed to open the first terminal hole. The method according to claim 1,
The restoration unit includes a grounding cap for selectively opening and closing the second terminal hole,
The grounding cap is
When the restoration part is pressed and descended, it interferes with the ground terminal exposed inside the housing and slides horizontally on the lifting part to open and close the second terminal hole. The method according to claim 1,
The switching unit is
a central frame having one end vertically coupled to the lower center of the lifting unit and inserted into an operation hole formed in the center of the bottom surface of the housing;
a transfer member coupled to the center of the center frame and simultaneously transferring the center frame and in a vertical direction;
a rotating member coupled to the other end of the central frame and rotating about the central frame as an axis by interference with the transfer member while sliding within the operation hole;
One-touch outlet including an operation member disposed side by side at equal intervals on the inner circumferential surface of the operation hole to guide the sliding movement of the rotating member, and to interfere with or release interference in a restoration direction while the rotating member rotates. 6. The method of claim 5,
The switching unit is
a first tooth pattern formed in a portion in which the transfer member is in contact with the rotating member;
a second tooth pattern that meshes with the first tooth pattern on the rotating member;
and a third tooth pattern meshing with the second tooth pattern on the operation member,
The second tooth pattern is in contact with the first tooth pattern so that a force is applied in the sliding transfer direction and the rotation direction,
The rotating member is a one-touch outlet having the same diameter as the guide member protruding from the outer periphery of the transfer member to correspond to the gap between the operating member.

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