JPH0684563A - Electric appliance - Google Patents

Abstract

PURPOSE:To eliminate need of thickness in a housing space for a plug blade, form it thin, and reduce generation of breakage of a rotary shaft of the plug blade. CONSTITUTION:An electric appliance is provided with a pair of plug blades 2, 2 which are capable of freely rising or falling in a plate thickness direction, and of which rising/falling angle is set almost at 90 deg.. Each plug blade 2, 2 comprising conductive metal material is provided with an integrally formed rotary shaft 21, and therefore it is capable of freely rising or falling because of this rotary shaft 21 being pivotally supported.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric device incorporating a plug blade for connecting a power source.

[0002]

2. Description of the Related Art A rechargeable electric device equipped with a plug blade for connection to an outlet for charging a built-in storage battery, or a charging device also equipped with a plug blade to be directly connected to the outlet There are many electric appliances such as a container and an AC adapter in which the plug blade of the plug can be switched between the housed state and the projected state, but a conventional one is disclosed in, for example, Japanese Patent Laid-Open No. 56-7368. As shown in Fig. 2, a plug blade block formed by fixing a pair of blades at a predetermined interval is made slidable or rotatable to switch between a protruding state and a stored state. Met.

In this case, the distance between the pair of blades is a predetermined value (1
(2.7 mm) and the width of the blade is also fixed, it is necessary for electric equipment to have a thickness corresponding to these, and such a plug blade is required for thin electric equipment. It cannot be provided. As shown in FIG. 13, by individually rotating the pair of blades 2 and 2 by approximately 180 °, the pair of blades 2 and 2 are switched between a protruding state and a storage state in which they are attached to both side surfaces. In some cases, the required space of the blade storage portion is smaller than that when the pair of blades 2 and 2 are stored in a single place. Blade 2,2
However, it cannot be applied to a thin device because it is limited by the above-mentioned predetermined interval and width.

Here, as shown in FIG. 10, the pair of blades 2 and 2 are made rotatable in the plate thickness direction, and the rotation range of both blades 2 and 2 is set to about 90 ° so that they can be stored. It has been proposed that the two blades 2 and 2 are arranged side by side on a plane. When the protruding state and the stored state are switched by raising and lowering the blades 2 and 2 as described above, the thickness of the storage space of the blade 2 required for the electric device 1 is the plate thickness of the blade 2 + α. Therefore, the retractable blade 2 can be provided in the thin electric device 1.

[0005]

However, when the thin electric device 1 is provided with the blades 2 and 2 as described above, the blades 2 and 2 are
The external force F in the direction shown in FIG. 12 is likely to be applied when the plug is projected and inserted into the outlet or when it is removed from the outlet, and this external force F acts in the direction of breaking the rotation shaft of the blade 2. Therefore, breakage of the blade 2 is likely to occur.

The present invention has been made in view of the above points, and the object thereof is that the storage space for the blade is not required to be thin, and the blade can be made thin, and An object of the present invention is to provide an electric device in which breakage of a rotating shaft does not easily occur.

[0007]

DISCLOSURE OF THE INVENTION The present invention, however, provides an electric device equipped with a pair of blades that can be tilted up and down in the plate thickness direction and have a tilt angle of approximately 90 °. Each of the blades made of a metallic material is characterized in that it is provided with an integrally formed rotating shaft, and is supported by the rotating shaft so that it can be raised and lowered.

[0008]

According to the present invention, since the rotary shaft of the blade is formed integrally with the blade made of a conductive metal material, the strength of the rotary shaft is high and the rotary shaft is broken. There is almost no.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the illustrated embodiments. The illustrated electric device 1 is a thin-type rechargeable electric shaver, and the electric device 1 is as shown in FIG. A body 3 formed in two parts, a flat tubular outer case 30 covering the body 3, and an outer blade frame 3 fixed to the upper end of the body 3 via a fixing ring 31.
An outer blade block 40 that is removable with respect to 3,
An inner blade block 41 having a large number of blades slidably contacting the inner surface of the outer blade of the outer blade block 40, a cap 45 for protecting the outer blade block 40, and a bottom block 10 arranged on the lower end side of the body 3 are provided. Equipped, body 3
The rotation of the motor 35 disposed inside is converted into reciprocating motion by the eccentric shaft 37 and the driver 38 and transmitted to the inner blade block 41.

The driving element 38 is arranged such that the upper ends of elastic legs 39, 39 formed integrally on both sides of the driving element 38 are clamped and fixed between the body 3 and the outer cutter frame 33. However, the sandwiching and fixing portion of the driver 38 in the body 3 is formed as a protrusion 32 protruding upward,
The sandwiching and fixing portion of the driver 38 in the outer blade frame 33 is formed by a fixing portion 330 that protrudes upward and is a recess on the lower surface side, and the fixed portion of the driver 3 is shifted upward. . Therefore, the elastic legs 39 can be made longer than the distance between the motor 35 and the upper end of the body 3.
Reference numeral 43 in the drawing denotes a dust-proof rubber for dust-proofing the insertion opening of the driver element 38 in the body 3 and the outer blade frame 33.

In the body 3, in addition to the motor 35, as shown in FIG. 5, a pair of storage batteries 34, 34 to be arranged on both sides of the motor 35, and a charging circuit module 93 are arranged. Has been done. In the figure, 82 is a cushion rubber for absorbing the vibration of the motor 35, 83 is an insulating tape,
86 and 87 are switch fittings, and 91 and 92 are battery fittings. Reference numeral 6 in the drawing denotes a switch handle arranged on the side surface of the electric device 1, which includes a switch lever 60 and a movable contact plate 61.
Slides together with the switch handle 6, and the switch fittings 86, 8 formed by the movable contact plate 61.
The storage battery 34 is connected to the motor 35 by the conduction between the seven. The tool engagement portion 911 provided on the battery fitting 91 is used for the storage battery 3
It is used when the battery fitting 91 welded and fixed to the battery 4 is detached from the storage battery 34, and is bent and formed along the side surface of the storage battery 34.

As shown in FIG. 7, the cap 45 has a protective cover 47 attached to the inner surface thereof with an adhesive tape 46, and the protective cover 47 frictionally engages with the outer blade frame 33 so that the cap 45 is formed. Is attached. Reference numeral 48 in FIG. 7 is a lamp cover for a lamp for displaying charging and completion of charging, and 49 is a lamp cover fixing tape.

In the electric device 1, a bottom portion of the electric blade 1 serves as a retractable blade housing, and a pair of blades 2 are arranged on one surface of the blade housing so as to face in opposite directions. When the bottom block 10 of the electric device 1 is pulled out downward, the Nos. 2 stand at 90 ° in the plate thickness direction and are arranged in parallel. FIG. 3 shows the structure of the bottom block 10 in which the blade housing portion is formed on one surface. The pair of blades 2, 2 has a supporting portion 20 made of an insulating material formed at the roots thereof, and a rotary shaft 21 and an eccentric shaft 26 at the roots. Then, the rotary shaft 21 is pivotally supported by the bottom plate 11 which is slidable with respect to the body 3 and the support plate 12 which is screwed to the bottom plate 11, so that the blade blades 2 and 2 are rotatable. Further, the blade blades 2 and 2 are urged in a direction in which both eccentric shafts 26, 26 are tilted together by connecting the eccentric shafts 26, 26 with each other by a tension spring 27. In addition, the directions in which the two blades 2 and 2 fall are opposite to each other.

A hoisting link 13 is arranged between the two blades 2, 2. The up-and-down link 13 includes the shaft 1 on one end side.
The pressing portion 132 on the other end side is movable in the thickness direction of the electric device 1 by pivotally supporting 31 by the bottom plate 11, and is biased by the return spring 15 located on the back side. Further, a lock plate 51 is provided for automatically locking the stopper blades 2 and 2 in an upright state in association with the operation of pulling out the bottom block 10. The lock plate 51, which is arranged on the bottom plate 11 of the bottom block 10 so as to be slidable in the same direction as the pulling-out direction of the bottom block 10, has a lock portion 52 at one end and an engagement portion 53 at the other end. Cage, bottom plate 1
8 is provided with the lock portion 52 normally provided on the bottom plate 11 by being urged downward by the spring 55 disposed between
It is located in the recess 110 shown in FIG. In the figure, reference numeral 17 denotes a lock plate that locks the bottom block 10 with respect to the electric device 1 in two states, that is, a state in which the bottom block 10 is housed in the electric device 1 and a state in which the bottom block 10 is completely pulled out.
Is a hook that is protruded from the bottom block 10 and defines the pull-out range of the bottom block 10.

From the state where the bottom block 10 is housed in the electric device 1, the lock plate 17 is pushed in to unlock and the bottom block 10 is pulled out to the lower side of the electric device 1, as shown in FIG. 10 (a). So first the bottom block 1
A pair of blades 2, 2 housed in the opposite direction to each other appear on one surface of 0, and when the bottom block 10 is further pulled out from this state, it is formed on the inner surface of the body 3 of the electric device 1. Since the pressing protrusions 19 pressing the tilting link 13 rotate the tilting link 13 and push the pressing portion 132 of the tilting link 13 in the thickness direction of the electric device 1, the two blade blades 2, 2 are It is pushed by the pushing portion 132 to turn about the turning shaft 21 to stand up as shown in FIG. 10 (b), and its root side is brought into contact with the current-carrying metal fitting 16. Further, the lock plate 51 moves upward relative to the bottom plate 11 while compressing the spring 55 by the engagement portion 53 engaging with the inner wall 1a of the body 3, and the lock portion 5
2 is inserted between a pair of blades 2, 2 which are erected as shown in FIG. For this reason, the double-ended blades 2, 2 are
It is prevented from falling down and locked upright. The storage battery 34 is charged by inserting the plug blades 2 and 2 thus projected into the outlet.

When the charging of the storage battery 34 is completed, the bottom plate 10 is pushed while pushing the lock plate 17 to release the lock.
Is pushed into the electric device 1. With the return of the lock plate 51 and the return link 13 by the return spring 15,
The blade blades 2 and 2 are housed on the bottom block 10 by being biased by the tension springs 27 by tilting 90 ° in opposite directions in the plate thickness direction, and finally the whole bottom block 10 is housed in the electric device 1. The up and down movement of the blades 2 and 2 is performed in conjunction with the pulling out and pushing in of the bottom block 10.

Here, the blade 2 is provided with the rotating shaft 21 and the eccentric shaft 26 as described above, but the eccentric shaft 26 is provided on the blade 2 by outsert molding. The rotary shaft 21 is integrally formed on the support portion 20 made of a body, while the rotary shaft 21 is integrally formed on the blade 2 itself made of a conductive metal material, as shown in FIG. Since the rotating shaft 21 is integrated with the blade 2 made of metal, as shown in FIG. 12, even if an external force F is applied in a state where the blade 2 is projected and connected to an outlet, the rotating shaft 21 is rotated. There is almost no possibility that 21 will break.

The rotating shaft 21 may be formed in a prismatic shape as shown in FIG. 11B, in addition to the cylindrical shape shown in FIG. 11A. In the case of a prismatic shape, the rotating shaft 21
As a result, since it is possible to form a thicker one than a columnar one, the strength of the rotating shaft 21 is further increased. When the rotating shaft 21 is formed into a prismatic shape, the bearing side is the rotating shaft 2
It is formed as a hole that fits the diagonal dimension of 1. Also,
Here, the supporting plate 12 screwed to the bottom plate 11 of the bottom block 10 is provided with the engaging protrusion 121 shown in FIG. 3, and the engaging protrusion 121 is slidably engaged with the body 3 side as shown in FIG. The holes 39 are provided to increase the strength of the bottom block 10 that can be pulled out from the electric device 1 and to counteract the external force F. Reference numeral 84 in FIG. 4 is attached to the outer surface of the portion of the body 3 where the long hole 39 is formed in order to insulate between the charging module 93 and the metallic outer case 30 by providing the long hole 39 in the body 3. It is an insulating tape.

[0019]

As described above, according to the present invention, the hoisting angle is approximately 9 and the hoisting angle is approximately 9 in the plate thickness direction.
Since the blade is provided with a pair of blades that are set at 0 °, the plate thickness of the blade becomes the thickness required for the storage space when the blade is stowed and stored. It is possible to reduce the thickness of the electric device without needing it, and since the rotary shaft of the blade is integrally formed with the blade made of a conductive metal material, the strength of the rotary shaft is improved. It is expensive and hardly causes breakage of the rotating shaft, and the blade can be smoothly tilted up and down.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of one embodiment.

FIG. 2 is a vertical sectional view of the above.

FIG. 3 is an exploded perspective view of the above bottom block.

FIG. 4 is an exploded perspective view of the same body.

FIG. 5 is a perspective view of a built-in component of the above.

FIG. 6 is a perspective view of an inner blade block, an outer blade block, an outer blade frame, and a driver of the above.

FIG. 7 is an exploded perspective view of the same outer case and cap.

FIG. 8 is a front view of the same blade blade accommodating portion when pulled out.

FIG. 9 is a side view of the plug blade accommodating portion when pulled out.

FIG. 10 (a) is a perspective view of the same blade blade accommodating section in an open state, and FIG. 10 (b) is a perspective view of the blade blade raised.

11 (a) and (b) are perspective views of a blade.

12 (a) and 12 (b) are a side view and a rear view showing an outlet connection state.

FIG. 13 is a perspective view of a conventional example.

[Explanation of symbols]

 1 Electric equipment 2 Plug blade 21 Rotating shaft

Claims (1)

[Claims] 1. An electric device comprising a pair of blades which can be tilted up and down in a plate thickness direction and whose tilting angle is approximately 90 °, wherein each blade made of a conductive metal material is integrated. An electric device comprising a turning shaft formed in a vertical direction, and the turning shaft being pivotally supported allows the electric device to be tilted up and down.