JP7030040B2 - Plug - Google Patents

Description

The present invention relates to a plug.

A conventional technique of an electronic device (AC adapter) adopting a swing plug method capable of freely rotating a pin direction from 0 ° to 180 ° is disclosed (for example, Patent Document 1). The electronic device (AC adapter) of Patent Document 1 has a first posture in which a plug is projected from a first surface of an outer case, and a first posture in which the plug is projected from a second surface of the outer case orthogonal to the first surface. The power plug is stored so that it can be rotated in the outer case so that it can be stored in the posture of 2 and the storage position where the power plug is stored inside the first surface. The insulation distance in the first posture is extended by providing a protruding portion protruding toward the second surface in the posture of 1 and the protruding end is positioned so as to protrude from the second surface, and the plug is inserted in the storage position. Store in a posture that tilts inward with respect to the surface.

Japanese Unexamined Patent Publication No. 2016-152198

For example, as shown in FIG. 1A, when the adapter 52 is used with the cable 53 extending downward, the household outlet is often installed near the floor, so that the cable is routed when the cable 53 is routed. The bending load may be concentrated on one point (for example, point x in the figure) of 53, and the cable 53 may be damaged. To avoid this, as shown in FIG. 1 (B), even if the pin 51 is used with the pin 51 opened 180 °, the holding force of the swing plug is weak, so that the adapter 52 moves in the y direction in the figure due to its own weight. It will rotate and return to the state shown in FIG. 1 (A). Further, as shown in FIG. 1 (C), when the adapter 52 is used in the direction in which the cable 53 extends upward, the adapter 52 rotates in the z direction in the figure due to its own weight because the holding force of the swing plug is weak. As a result, the electronic device (for example, a mobile terminal) connected to the cable 53 may fall over or fall from the desk.

Therefore, an object of the present invention is to provide a plug that can increase the holding force at a predetermined opening angle.

The plug of the present invention has a support plate, a bearing portion formed on the support plate, a rotation base formed with a rotation shaft connected to the bearing portion, and rotatably attached to the support plate, and rotation. A pin attached to the base, a cam formed at one end of the rotating shaft and having a plurality of protrusions on the outer circumference thereof, and an elastic frame having a groove engaged with the protrusions on the inner circumference thereof and fixed to a support plate, and rotation. It includes a protruding portion formed at the other end of the shaft and having a protrusion at one point on the outer periphery thereof, and an elastic convex portion that comes into contact with the protruding portion when the rotation base is in a predetermined direction.

According to the plug of the present invention, the holding force can be increased at a predetermined opening angle.

The conceptual diagram which shows the problem of the conventional swing plug type AC adapter. The perspective view which shows the outer shape of the insertion plug of Example 1. FIG. The perspective view explaining the attachment of the rotation base to the support plate of the insertion plug of Example 1. FIG. FIG. 3 is a perspective view illustrating the connection between the cam of the plug of the first embodiment and the elastic frame. FIG. 3 is a perspective view illustrating the contact between the protruding portion and the elastic convex portion of the insertion plug of the first embodiment. The perspective view explaining the elastic convex part of the insertion plug of Example 1. FIG.

Hereinafter, embodiments of the present invention will be described in detail. The components having the same function are given the same number, and duplicate explanations are omitted.

Hereinafter, the outer shape of the plug of the first embodiment will be described with reference to FIG. As shown in the figure, the plug 1 of the present embodiment includes a case 105, a movable rotary base 110, and a pin 115 attached to the rotary base 110.

Hereinafter, the support plate 120 corresponding to the bottom plate of the case 105 and the rotation base 110 attached to the support plate 120 will be described in detail with reference to FIG. As shown in the figure, the support plate 120 has a pair of bearing portions 121 having a semicircular cross section for supporting the rotary shaft 135, which will be described later, and a pin on one end side in the longitudinal direction (front side in the figure). A pin accommodating portion 125 for folding and accommodating 115, the pin accommodating portion 125 formed by projecting a part of the support plate 120 upward in a dome shape, and the plate surface and one of the support plate 120. It includes a frame 140 formed in the vicinity of the bearing portion 121 (on the right side in the figure) and a notch 141 formed by cutting out a part of one of the frames 140 (on the right side in the figure).

The rotary base 110 has a substantially rectangular parallelepiped shape and is rotatably attached to the support plate 120. Specifically, the rotary base 110 is formed with a rotary shaft 135 that is stretched in the lateral direction of the support plate 120 and is connected to the pair of bearing portions 121. The rotation shaft 135 is formed so as to project from the rotation base 110 on one end side in the lateral direction of the support plate 120 (on the right side in the figure) and on the other end side in the lateral direction of the support plate 120 (on the left side in the figure). There is. At one end of the rotating shaft 135 (on the right end when facing the figure), a cam 136 having a plurality of protrusions protruding in a direction perpendicular to the extending direction of the rotating shaft 135 and having a star-shaped cross section is formed. For example, the protrusions are arranged on the outer circumference of the cam 136 at 45 ° intervals. At the other end of the rotating shaft 135 (the left end when facing the figure), a protruding portion 155 is formed so that one part of the outer circumference thereof is projected in a direction perpendicular to the extending direction of the rotating shaft 135.

Hereinafter, the connection between the cam 136 of the plug 1 of the present embodiment and the elastic frame 145 will be described with reference to FIG. As shown in the figure, the cover 150 is covered and connected to the pin accommodating portion 125. At one end of the cover 150 (on the right front side in the figure), a frame accommodating portion 151, which is a case that opens downward, is provided. As shown in the area surrounded by the broken line in the upper left of the figure, the plug 1 of the present embodiment includes a frame-shaped elastic frame 145 that is elastically deformed. The elastic frame 145 has a pair of grooves 146 that face each other on a part of the inner circumference thereof and engage with a protrusion of the cam 136, and a protrusion formed by projecting a part of the circumference to one side (on the right front side in the figure). Includes part 147.

As shown in the area surrounded by the broken line in the center and the lower right of the figure, the upper end of the elastic frame 145 is housed in the frame accommodating portion 151, and the lower end of the elastic frame 145 is housed in the frame 140 and fixed to the support plate 120. Will be done. At this time, the convex portion 147 of the elastic frame 145 is fitted into the notch 141 of the frame 140. As shown in the area surrounded by the broken line at the lower right of the figure, the cam 136 is inserted through the elastic frame 145, and one of the protrusions of the cam 136 and the protrusion at the position facing the cam 136 are a pair of elastic frames 145. It is fitted into each of the grooves 146 of.

Hereinafter, the contact between the protruding portion 155 and the elastic convex portion 152 of the insertion plug 1 of this embodiment will be described with reference to FIGS. 5 and 6. As shown in FIG. 5, the cover 150 is formed with an elongated rod-shaped elastic convex portion 152 extending downward. As shown in FIG. 6, the elastic convex portion 152 is not fixed to the pin accommodating portion 125, and has a gap 160 between the elastic convex portion 152 and the pin accommodating portion 125. Therefore, it can be said that the elastic convex portion 152 has a shape that is easily elastically deformed in the longitudinal direction of the support plate 120. The cover 150 and the elastic convex portion 152 can be made of, for example, resin. As shown in FIG. 5, when the rotation base 110 is in a predetermined orientation, that is, the pin 115 is at an angle of 90 ° (180 °) with respect to the support plate 120, the protrusion 155 is with the elastic protrusion 152. It shall be in contact. Even if the elastic convex portion 152 is provided at the terminal connecting the rotation base 110 and the substrate, the same effect can be obtained.

Each state of the plug 1 of this embodiment is defined as follows, and the transition between each state will be described.

<State 0 °>
The pin 115 is folded and fully contained in the pin accommodating portion 125.

<State 90 °>
The pin 115 forms an angle of 90 ° with respect to the support plate 120.

<State 180 °>
The pin 115 is located outside the pin accommodating portion 125 and faces a direction parallel to the longitudinal direction of the support plate 120.

<State 0 ° → State 90 °>
When the rotation base 110 and the pin 115 are to be manually rotated from the state 0 ° to the state 90 °, one end of the rotation shaft 135 is formed by rotating the cam 136 as shown in FIG. Pushed by the protrusion, the inner circumference of the elastic frame 145 is elastically deformed in the direction of expansion. As a result, the protrusion of the cam 136 fitted in the groove 146 escapes from the groove 146, and the rotation base 110 starts to rotate. At this time, the cam 136 rotates clockwise when viewed from the direction of FIG. As a result, the protrusions that are adjacent to the protrusions that were engaged with the groove 146 until just before and the protrusions that are adjacent to each other when viewed counterclockwise are then engaged with the groove 146. Further, when the pin 115 is to be rotated manually, the inner circumference of the elastic frame 145 is similarly elastically deformed in the direction of expansion, and the protrusion of the cam 136 fitted in the groove 146 comes out of the groove 146 and counterclockwise. The protrusions located adjacent to each other then fall into the groove 146 and engage with each other repeatedly. On the other hand, with respect to the other end of the rotating shaft 135, the protruding portion 155 does not come into contact with any component until the state reaches 90 °, and rotates counterclockwise when viewed from the direction of FIG. Therefore, the user who manually rotates the rotation base 110 and the pin 115 can obtain a click feeling due to the protrusion of the cam 136 falling into the groove 146 at a predetermined angle, and the rotation base can be obtained by using the click feeling as a guide. The 110 and the pin 115 can be rotated to the desired angle. Further, since the protrusion of the cam 136 and the groove 146 are engaged with each other, even when an external force is applied, the opening angle can be maintained as long as the external force is equal to or less than a predetermined magnitude.

<State 90 ° → State 180 °>
When the rotation base 110 and the pin 115 are to be manually rotated from the state 90 ° to the state 180 °, one end of the rotation shaft 135 is elastically deformed in the direction in which the inner circumference of the elastic frame 145 expands, as described above. Then, the protrusion of the cam 136 fitted in the groove 146 escapes from the groove 146, and the protrusions at adjacent positions when viewed counterclockwise then fall into the groove 146 and engage with each other repeatedly. On the other hand, with respect to the other end of the rotating shaft 135, the protruding portion 155 and the elastic convex portion 152 come into contact with each other in the state of 90 ° (FIG. 5). When a force is applied so that the pin 115 is further opened (so that the state is 90 ° or more), the protruding portion 155 pushes the elastic convex portion 152, so that the elastic convex portion 152 is moved in the longitudinal direction of the support plate 120 (FIG. Elastically deforms in the left back direction in 5. In this state, when a force is continuously applied so that the pin 115 opens, the elastic convex portion 152 is elastically deformed, and the tip of the protruding portion 155 remains in contact with the elastic convex portion 152 and slides downward while being viewed from the direction of FIG. And rotate counterclockwise. As long as the tip of the protrusion 155 points diagonally upward, the elastic protrusion 152 continues to push the protrusion 155 in a direction that suppresses the rotation of the rotation shaft 135. On the other hand, when the tip of the protrusion 155 points diagonally downward, the elastic convex portion 152 starts pushing the protrusion 155 in a direction that promotes the rotation of the rotation shaft 135.

<State 180 ° → State 90 °>
When the rotation base 110 and the pin 115 are to be manually rotated from the state 180 ° to the state 90 ° (rotation in the opposite direction to the above), one end of the rotation shaft 135 is in the elastic frame 145 as described above. The protrusion of the cam 136 that had been elastically deformed in the direction of expanding the circumference came out of the groove 146, and the protrusions at adjacent positions when viewed clockwise then fell into the groove 146 and engaged with each other repeatedly. Is done. On the other hand, with respect to the other end of the rotating shaft 135, the protruding portion 155 and the elastic convex portion 152 come into contact with each other in the state of 180 °. When a force is applied so that the pin 115 closes (so that the state is 180 ° or less), the protruding portion 155 pushes the elastic convex portion 152, so that the elastic convex portion 152 is moved in the longitudinal direction of the support plate 120 (FIG. 5). Elastically deforms in the left back direction). In this state, if the force is continuously applied so that the pin 115 closes, the elastic convex portion 152 is elastically deformed, and the tip of the protruding portion 155 remains in contact with the elastic convex portion 152 and slides upward while being viewed from the direction of FIG. And rotate clockwise. As long as the tip of the protrusion 155 points diagonally downward, the elastic protrusion 152 continues to push the protrusion 155 in a direction that suppresses the rotation of the rotation shaft 135. On the other hand, when the tip of the protrusion 155 faces diagonally upward, the elastic convex portion 152 starts pushing the protrusion 155 in a direction that promotes the rotation of the rotation shaft 135.

Therefore, when the pin 115 is raised from the state 0 ° to the state 90 °, the user feels a click feeling at each predetermined angle (for example, every 45 °). The opening angle of the pin 115 is held by a predetermined holding force in a state where any protrusion of the cam 136 and the groove 146 are engaged with each other.

The user experiences the sensation of restrained rotation and the sensation of overcoming it when attempting to rotate the pin 115 beyond the state 90 °. In a state where the protrusion 155 and the elastic convex portion 152 are in contact with each other, the opening angle of the pin 115 is held with a holding force stronger than the above-mentioned holding force with respect to the rotation in the opening direction of the pin 115.

The user experiences the sensation that the rotation is suppressed and the sensation of overcoming the rotation when trying to rotate the pin 115 in the closing direction from the state 180 °. In the state where the protrusion 155 and the elastic convex portion 152 are in contact with each other, the opening angle of the pin 115 is held with a holding force as strong as the state 90 ° with respect to the rotation in the direction of closing the pin 115.

As described above, according to the plug 1 of the present embodiment, the cam 136 is formed at one end of the rotating shaft 135 and engaged with the elastic frame 145, so that the user feels the click feeling and the angle at each predetermined angle. By enabling holding and engaging the protruding portion 155 with the elastic convex portion 152 at the other end of the rotating shaft 135, a strong holding force is exerted against the force in the opening direction of the pin 115 in the state 90 °. It is possible to exert a strong holding force against the force in the direction of closing the pin 115 in the state of 180 °. As a result, it is possible to prevent the rotation base 110 of the plug 1 from unexpectedly rotating, and it is possible to prevent the electronic device connected to the plug 1 from tipping over or falling.

1 Plug 105 Case 110 Rotating base 115 Pin 120 Support plate 121 Bearing 125 Pin accommodating 135 Rotating shaft 136 Cam 140 Frame 141 Notch 145 Elastic frame 146 Groove 147 Convex 150 Cover 151 Frame accommodating 152 Elastic convex 155 Projection 160 gap 51 pin 52 adapter 53 cable

Claims (2)

Support plate and
The bearing portion formed on the support plate and
A rotary base connected to the bearing portion and rotatably attached to the support plate,
With the pins attached to the rotating base,
A cam formed at one end of the rotating shaft and having a plurality of protrusions on the outer periphery thereof,
An elastic frame having a groove engaged with the protrusion on its inner circumference and fixed to the support plate,
A protruding portion formed at the other end of the rotating shaft and having a protruding portion on the outer circumference thereof,
An elastic protrusion that comes into contact with the protrusion when the rotation base is in a predetermined orientation,
Plug-in plug including. The plug according to claim 1.
A pin accommodating portion formed by projecting a part of the support plate in a dome shape,
Includes a cover connected to the pin housing
The elastic convex portion is
A plug formed on the cover.

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