JPS6224942Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a small electric device and a plug mechanism thereof. Conventionally, small electric devices, especially rechargeable devices, have a charging plug that can be freely inserted and removed from one side of the device. However, the plug is generally housed at the bottom of the main body, and in order to ensure a sliding range for the plug, the width of the main body must be increased. Furthermore, the vertical dimension of the main body case also increases due to the thickness of the charging plug portion, which, together with the above-mentioned width dimension, is an obstacle to downsizing the device. The present invention has been developed in view of these conventional drawbacks, and its purpose is to incorporate a novel plug insertion/extraction mechanism into the equipment in order to reduce the size of the equipment. To achieve this purpose, a slit hole is bored in one side of the main body case, and the plug is placed close to the slit hole so that the contact surface with the external terminal is parallel to the main body case. , a knob for inserting and removing the plug through the slit hole is provided so that the plug can be inserted and removed within the length dimension range of the slit hole, and a rail is formed to guide the plug. A cover piece is attached to the side surface of the plug board so that the plug cannot be directly seen through the slit hole. Therefore, since the slit hole and the plug are shielded by a cover piece, the user can use the device with peace of mind without causing any discomfort, and it also prevents dust from entering the inside of the small electrical equipment body through the slit hole. It can be prevented. Moreover, the color difference between the main body and the plug can be eliminated, which has a great design effect. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention applied to a rotary electric shaver will be described in detail below with reference to the drawings. Reference numeral 1 denotes a main body case, which is composed of a two-part joined body of a front case 2 and a rear case 3. The front case 2 is provided with a hexagonal hole 5 through which the electric motor 4 is inserted, and a slit hole 8 for guiding the operating knob 7 of the plug 6 .
In addition, a rectangular hole 10 for guiding the starting switch knob 9 is formed on the side surface. Locking walls 11, 11 are provided upright on both sides of the hexagonal hole 5, and locking claws 13, 1 are provided on the fixing base 12 of the electric motor 4.
3, and the electric motor 4 inserted from the outside of the front case 2 is fixed to the front case 2 by hooking the locking claws 13, 13 on the locking walls 11, 11. The plug 6 has a pair of plug blades 15 on its sides, which have a contact surface 14 with an external terminal such as a household console.
15 is insert molded into a plug blade stand 16 made of synthetic resin. Rails 18, 18 are formed on the plug receiving plate 17 for guiding the plug 6 .
The sliding direction of the plug 6 is regulated by the grooves 19, 19 provided in the plug blade stand 16, and smooth insertion and removal operations are performed. A generally arrow-shaped recess 20 is cut on the back surface of the plug blade base 16, and the recess 20 has a cross section approximately L.
A bifurcated leg portion 22 formed at the lower end of the letter-shaped locking member 21 is accommodated. Also, the lock member 21
The upper side is provided with an operating head 23 at the center and engagement protrusions 24, 24 at both ends, while engagement receiving portions 25, 25 are provided on the side edges of the slit hole 8.
25 and the engaging projections 24, 24, the plug 6
It constitutes the locking mechanism. Further, the slit hole 8 has an auxiliary knob 26 for inserting and removing the plug 6 .
is slidably locked along the slit hole 8,
The operating head 23 of the locking member 21 protrudes from the central hole 27 of the auxiliary knob 26. It is the locking member 21 that directly operates the plug 6 in and out.
The auxiliary knob 26 is a means for improving the operability. At one end of the plug receiving plate 17, there is a “shaped mounting portion 2”.
9 is provided, and a dowel 30 for welding is provided on the upper surface of the dowel.
30, while a synthetic resin plug cover 3
1 is fitted into the dowels 30, 30 with their round holes 32, 32, and fixed by welding. The upper side of the locking member 21 moves between the plug cover 31 and the slit hole 8. In addition, the plug receiving plate 1
7 is placed in the front case 2, the inside of the slit hole 8 is covered by the plug cover 31. The starting switch knob 9 has substantially the same structure as the operating knob 7 of the plug, and has a locking protrusion 35 formed on the shoulder of a lock button 34 formed by cutting out the center of the lock plate 33, while the front A locking mechanism is constructed by providing a receiving portion 36 near the rectangular hole 10 provided on one side of the case 2. An operation assisting member 37 is inserted and locked into the rectangular hole 10 from the outside and is slidable along the rectangular hole 10, and the protruding portion 39 of the lock button 34 is made to protrude from the central opening 38 of the rectangular hole 10. The member 37 and the lock plate 33 can be interlocked with each other. A slide plate 40 is attached to the lower end of the lock plate 33.
are integrally formed, and a movable contact piece 41 attached to the slide plate 40 slides on a fixed contact piece (not shown) on the front surface of a printed circuit board 42. The slide plate 40 moves in the space formed by the inner surface of the front case 2 and the front surface of the printed circuit board 42 according to the movement of the lock plate 33 or the auxiliary member 37, and moves between its legs 43 and the front surface. It forms an articulation mechanism with a boss 44 on the inner surface of the case 2. Note that the small hole 45 provided on the other side of the front case 2
is a light emitting diode (not shown) that lights up while charging
This is for attaching a display window (not shown). Inside the main body case 1, there are disposed a rechargeable battery 46 that serves as a power source for the electric motor 4, which is the other member, and a voltage drop transformer 47 for charging the battery 46. In addition, the fixed base 12
A threaded groove 48 is cut in the portion protruding forward from the main body case 1, and a light metal outer cutter frame (not shown) is fitted with a dome-shaped outer cutter (not shown) through this threaded groove 48. (1) is arranged to protrude from the front surface of the front case 2. Next, the operation of the present invention will be explained. Assembling the main body is very simple as will be described later. That is, the electric motor 4 is inserted into the hexagonal hole 5 from the front surface of the front case 2, and the locking claws 13, 13 are inserted into the locking wall 11,
11 and fix it. And plug blade 1
6, the leg part 22 of the locking member 21 is fitted into the arrow-shaped recess 20 and temporarily secured, and then the plug receiving plate 17 is inserted.
the rails 18, 18 and the groove 1 of the plug blade stand 16.
9 and 19 and placed in the front case 2 in the polymerized state. At this time, the operating head 23 of the lock member 21 is made to protrude from the slit hole 8 of the front case 2, and the operating head 23 is inserted into the central hole 2.
7, and lock the auxiliary knob 26 to the side edge of the slit hole 8. The plug cover 31 has already been attached to the plug receiving plate 17 in the previous process. The starting switch knob 9 is also assembled in substantially the same manner as the plug described above. That is, after welding the movable contact piece 41 to the slide plate 40, the protruding part 39 is arranged on the front case 2 so as to protrude from the rectangular hole 10 of the front case 2 together with the lock plate 33, and the auxiliary member 37 is further attached. The protruding portion 39 is engaged with the rectangular hole 10 so as to protrude from the central opening 38 thereof. The rest of the printed circuit board 4
2. After properly arranging the transformer 47 and the battery 46, and joining the rear case 3 to the front case 2, assembly is completed. In this state, the plug cover 31
reliably shields the inner surface of the slit hole 8,
From the slit hole 8 comes the contact surface 14 of the plug 6 .
I can't see it. As described above, the present invention has a structure in which the operation knob of the plug inside the main body case is locked through the slit hole provided on one side of the main body case, and the slit hole is covered by the plug cover attached to the holder of the plug. Since the plug is shielded by the cover piece and is not exposed to the outside, the user can not only safely use it without feeling the risk of electric shock, but also be able to access the inside of the small electrical device through the slit hole. can prevent dust from entering. Moreover, it is possible to eliminate the color mismatch between the plug and the main body of the device, and to provide a small electric device with a great design effect.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of a rotary electric shaver which is an embodiment of the present invention, Fig. 2 is a sectional view taken from Fig. 1, Fig. 3 is a sectional view taken from Fig. 1, and Fig. 4 is a sectional view taken from Fig. 1. 1 is a sectional view taken along the line 1, and FIG. 5 is an exploded perspective view of the main parts. 8...Slit hole, 6 ...Plug, 31...Plug cover.

Claims (1)

[Claims for Utility Model Registration] A slit hole is bored in one side of the main body case, and a knob for inserting and removing a plug inside the main body case through the slit hole is provided so as to be slidable along the slit hole, and A small electric device comprising a cover piece for shielding a slit hole attached to a plug receiving plate forming a rail for slidingly guiding the plug. The small electric device according to claim 1, wherein the plug is arranged such that a contact surface with an external terminal is parallel to the main body case.