JPH05144502A - Power source plug device - Google Patents

Abstract

PURPOSE:To improve facility and convenience, to facilitate taking out a power source plug part out of a stored place, and to reduce the size (thickness) of an apparatus main body part by making the power source plug part capable of insertion without any constraints due to the location of a power source plug socket and surrounding conditions. CONSTITUTION:A power source plug part 3 provided with an apparatus main body part 2 in an integrated manner, is preferentially displaced to a position to be used or to a position to be stored. A notch-like recessed part 6 is provided on a casing 5 of the apparatus main body part 2, and the power source plug part 3 is arranged in the recessed mechanism 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power plug device integrally provided in a device body such as an AC adapter.

[0002]

2. Description of the Related Art Conventionally, a small AC adapter for converting a commercial AC power supply into a DC power supply has been known, and this kind of AC adapter is integrally provided with a power supply plug portion to be plugged into a power outlet. Further, since the plug pin of the power plug portion protruding from the AC adapter impairs the storability, portability, safety, etc., an AC adapter that allows the power plug portion to be stored inside the adapter main body is also used, for example. It is known from Japanese Patent Publication No. 61-169971.

In the AC adapter disclosed in the above publication, a blade block (power plug portion) is rotatably attached to an adapter body,
The plug blade (plug pin) is projected from the adapter body when used, and the blade block is rotated 90 ° when not used so that the blade can be stored inside the adapter body.

[0004]

However, the conventional AC adapter capable of storing the above-mentioned blade has the following problems.

First, the blade block is provided integrally with the AC adapter, and only one position is used for the adapter body. Therefore, depending on the position of the power outlet and the surrounding conditions, the blade block may be used as the power outlet. It is often difficult to plug it in and it is inferior in usability and convenience.

Secondly, since there is only one entrance / exit for the blade block in the adapter body and the blade block is relatively thin, it is not easy to remove the blade block from the storage position. Therefore, the opening of the entrance / exit is inevitably large, and in the end, an unnecessary dead space is taken, resulting in an increase in the size of the entire AC adapter.

The present invention solves the problems existing in the prior art as described above, and the power plug portion can be inserted without being restricted by the position of the power outlet or the surrounding condition, which is convenient and convenient. It excels in
An object of the present invention is to provide a power plug device in which a power plug part can be easily taken out from a storage position and a device main body part to be mounted can be downsized (thinned).

[0008]

According to the present invention, a device body 2 is provided.
In constructing the power plug device 1 capable of selectively displacing the power plug portion 3 integrally provided in the casing to the use position or the storage position, in particular, the casing 5 of the device main body portion 2 is provided with the notch-shaped concave portion 6, The power plug portion 3 is at least 180 ° or more inside the recess 6, preferably by the rotating mechanism 7.
It is characterized in that it is arranged so as to be rotatable within a range of 0 °.

In this case, it is desirable to provide a click mechanism 8 for stopping the power plug portion 3 at at least one position, for example, the storage position Pc and the three use positions Pux, Puy ... Further, it is desirable that the casing 5 and the power plug portion 3 have the same thickness in the same direction. Furthermore, as the device main body 2, the application to the AC adapter 2a is particularly suitable.

[0010]

According to the power plug device 1 of the present invention, the power plug portion 3 is provided in the notch-shaped recess 6 provided in the casing 5 of the device body 2 by the rotating mechanism 7, for example, 360.
Since it is arranged so as to be rotatable in the range of °, it can be set to the storage position Pc by turning the power plug portion 3, and at this storage position Pc, the plug pin of the power plug portion 3 can be housed in the recess 6. On the other hand, by rotating the power plug unit 3, a plurality of different angles, that is, different use positions Pux
Or, it can be set to Puy ... and the position of the power plug unit 3 can be selected according to the position of the power outlet and the surrounding conditions. At this time, the power plug unit 3 can be easily taken out from the storage position Pc because the power plug unit 3 is pushed from one side and protrudes from the other side.

The power plug unit 3 has at least 180
The casing 5 and the power plug portion 3 can be formed to have the same thickness in the same direction because they are rotated within the range of not less than 0 ° and are arranged in the notched concave portion 6.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments according to the present invention will be described in detail with reference to the drawings. The embodiment exemplifies the AC adapter 2a as the device body 2.

First, the overall structure of the AC adapter 2a will be described with reference to FIGS.

In the AC adapter 2a, reference numeral 5 denotes a casing, which is formed into a so-called pocket size capable of accommodating the entire size in a pocket and is formed into a rectangular parallelepiped thin shape. Then, the power plug device 1 to be inserted into a power outlet of a commercial AC power source is arranged at a predetermined position of the casing 5, an output cord 51 is led out from one end of the casing 5, and a direct current is supplied to a tip of the output cord 51. It has an L-shaped output plug 52 for outputting.

Next, regarding the configuration of the power plug device 1,
A specific description will be given with reference to FIGS.

First, the narrow side surface 5 of the casing 5
A notched and rectangular recess 6 is provided in a direction perpendicular to s. The recess 6 has an inner wall 6w, and this inner wall 6w constitutes a part of the casing 5. Therefore, the inside of the casing 5 is sealed. In addition, the wide side surface 5p facing the concave portion 6,
The concave curved surfaces 11p and 11q are formed between 5q and the inner wall 6w of the concave portion 6.

On the other hand, the opposing wall surfaces 6w in the concave portion 6
.. are provided with bearing hole portions 12i and 12j shown in FIG. 4, the power source plug portion 3 is housed in the recess portion 6, and the power source plug portion 3 is mounted rotatably within a range of 360 ° through a rotating mechanism 7 described later.

As shown in FIGS. 6 and 7, the power plug portion 3 is provided with a rectangular parallelepiped plug block 13, one surface 1 of which is provided.
A pair of plug pins (blades) 1 that are separated from 3s in parallel
4i and 14j project. In addition, the bearing hole 1
Shaft portions 15i, 1 rotatably supported by 2i, 12j
5j is integrally formed. The shaft portions 15i and 15j form the rotating mechanism 7 together with the bearing hole portions 12i and 12j. on the other hand,
The plug pin 14i is integrally formed on one end side of the lead plate 16i, and the other end side of the lead plate 16i is bent inside the plug block 13 and extends in a direction perpendicular to the plug pin 14i, and the shaft body on the side surface 13i is formed. The part 15i is made to project to the outside from the center. Similarly, the plug pin 14j is integrally formed on one end side of the lead plate 16j, and the other end side of the lead plate 16j is bent inside the plug block 13 and extends in a direction perpendicular to the plug pin 14j. Side 1
3j is made to project outside from the center of the shaft body portion 15j.

Further, cams 17i and 17j shown in FIGS. 3 and 4 are fitted into the lead plates 16i and 16j protruding through the shaft portions 15i and 15j to the outside,
The lead plates 16i and 16j are fixed by crimping the tips. The cam 17i (same for the 17j side) is formed in a cylindrical shape, and axial concave grooves 18a, 18b, 18c, 18d are formed at quadrants on the circumferential surface thereof. On the other hand, the contact plates 21i and 21j are fixed by screws inside the casing 5 near the cams 17i and 17j. The contact plate 21i (same for the 21j side) has a connection terminal 23i for connecting the lead wire 22i at one end side, and three leaf spring plates 24a from the other end side,
24b and 24c extend. The two leaf spring plates 24a and 24b facing each other are formed so that their tip portions are curved in a semicircular shape, and are pressed into contact with each other at a 180 ° facing position on the circumferential surface of the cam 17i, thereby forming the click mechanism 8 and the intermediate mechanism. The leaf spring plate 24c is the lead plate 16
Press the tip of i. The lead plate 16i,
The cam 17i and the contact plate 21i are integrally formed of a conductive metal to form a conductive circuit. 22j in the figure
Is a lead wire connected to the contact plate 21j side.

On the other hand, the lead wires 22i and 22j are connected to the printed wiring board 31 arranged inside the casing 5. The printed wiring board 31 has a power transformer (not shown),
The output code 5 includes a rectifier unit, a smoothing circuit, and the like.
Direct current is output from 1.

Next, the positional relationship and function of each part, and
A method of using the AC adapter 2a will be described with reference to the drawings.

First, the power plug portion 3 can be rotated about the rotation mechanism 7 (shaft portion 15i ...) In the range of 360 °. At this time, the function of the click mechanism 8 can stop the power plug unit 3 by 90 °. That is, as shown in FIG. 5, the storage position Pc in which the plug pins 14i ... Are accommodated inside the recess 6, and the storage position Pc to 180.
Rotated first use position Pux, first use position P
Second and third use position Puy rotated 90 ° from ux
It can be stopped with ... and the plug pin 14i at each position ...
Is parallel or perpendicular to the surface of the casing 5. In addition, the thickness of the casing 5 and the thickness of the power plug portion 3 (plug block 13) in the same direction are formed to be the same. Have continuity.

Also, three leaf spring plates 24a, 24
Since b and 24c are always in contact with the cam 17i and the lead plate 16i and three-point contact is ensured, contact failure can be prevented and a relatively large current capacity can be ensured.

Therefore, when not in use, the power supply plug portion 3 is set to the storage position Pc shown in FIG.
The protrusion of i ... is eliminated, and it can be easily stored in a pocket of clothes, etc., and is most suitable for an AC adapter attached to a portable personal computer (notebook personal computer) or the like.

On the other hand, when used, the concave curved surface 11p (or 11
When the power plug portion 3 located at q) is pushed, the power plug portion 3 projects from the other concave curved surface 11q (or 11p), so that it can be easily taken out from the storage position Pc. Therefore, the recess 6 need only have a space for accommodating only the power plug portion 3, and an unnecessary dead space is unnecessary.
In use, by selecting the use position Pux or Puy ..., it can be adapted to the position of the power outlet and the surrounding condition. For example, if the use position Pux is set as shown in FIG. Since the width (thickness) of the plug portion 3 and the thickness of the casing 5 are the same, the power outlet can be used even in a narrow place. In addition, the use position P rotated by 90 ° from the use position Pux
When set to uy, an object or the like is placed in front of the power outlet, and can be used even when the distance between the object and the power outlet is narrow.

The embodiment has been described in detail above.
The present invention is not limited to such an embodiment.
For example, the rotation range of the power plug unit can be set to an arbitrary rotation range of 180 ° or more. The click position in the click mechanism is not limited to the example, and any angle (position) and quantity can be set, and the click mechanism does not necessarily have to be provided. Furthermore, although the AC adapter is illustrated as the device main body, it can be similarly applied to other similar devices such as a pocket radio and a pocket player. In addition, the detailed configuration, shape, quantity, and the like can be arbitrarily changed without departing from the scope of the present invention.

[0027]

As described above, in the power plug device according to the present invention, the casing of the equipment main body is provided with the notched concave portion,
Since the power plug portion is rotatably disposed within this recess in the range of at least 180 ° or more, the following remarkable effects are obtained.

Since the use position of the power plug unit can be selected at a plurality of different angles, the power plug unit can be inserted without being restricted by the position of the power outlet and the surrounding condition, which is excellent in usability and convenience. ..

Since the notch-shaped concave portion is provided in the casing, the power plug portion can be easily taken out, and the concave portion is enough to accommodate only the power plug portion.
Useless dead space is not required, and the main body of the device to be mounted can be made smaller (thinner).

[Brief description of drawings]

FIG. 1 is a perspective view of an AC adapter including a power plug device according to the present invention,

FIG. 2 is a front view of the AC adapter,

FIG. 3 is a sectional view of the AC adapter taken along line BB in FIG. 4;

FIG. 4 is a sectional view of the AC adapter taken along the line AA in FIG.

5 is a cross-sectional view of the AC adapter taken along the line C-C in FIG. 4,

FIG. 6 is a front view of a power plug portion of the power plug device,

FIG. 7 is a view of the same power plug portion viewed in the direction of arrow D in FIG. 6,

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Power plug device 2 Device main body 2a AC adapter 3 Power plug part 5 Casing 6 Notch-shaped recess 7 Rotation mechanism 8 Click mechanism Pc Storage position Pux ... Use position

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[Procedure amendment]

[Submission date] January 21, 1992

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 5]

[Figure 6]

[Figure 7]

Claims (5)

[Claims] 1. A power plug device comprising a power plug unit integrally provided in a device body, which is selectively displaceable to a use position or a storage position, wherein a notched recess is provided in a casing of the device body. A power plug device, wherein the power plug part is provided in the recess so as to be rotatable within a range of at least 180 ° or more. 2. The power plug device according to claim 1, further comprising a rotating mechanism that supports the power plug portion so as to be rotatable within a range of 360 °. 3. The power plug device according to claim 1, further comprising a click mechanism capable of stopping the power plug portion in at least one position (a use position and a storage position). 4. The power plug device according to claim 1, wherein the thickness of the casing and the thickness of the power plug portion in the same direction are the same. 5. The power plug device according to claim 1, wherein the device body is an AC adapter.