JPS5919353Y2 - Plug device for small appliances - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a plug device for a small electric appliance.

Conventionally, in small electric appliances such as electric shavers,
As a power supply means for the built-in secondary battery, a plug having a pair of plug blades is slidably housed in a razor case, and a resin plug body or plug is used to keep the plug blades protruding from the case. A recess is provided in the inner bottom surface of the plug storage chamber, with which the operating knob engages with elastic force.

However, in the case where the plug body engages in the recess, the plug itself moves up and down, causing the plug to shake, resulting in poor operability.

In addition, in the case where the operating knob of the plug engages with the recess, a coil spring must be used so that only the operating knob moves up and down with respect to the plug body, which has the disadvantage of requiring a large number of parts and complicating the structure.

Furthermore, if it is difficult to make the recess deep due to the design, there is a possibility that the protruding state of the plug blade will not be maintained properly.

The present invention has been devised in view of these points, and one embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 are sectional views of main parts of the instrument case with different operation knobs.

The instrument case 1 consists of two divided cases 2 and 3, and by joining the two divided cases, a resin partition plate 5 is clamped and fixed between ribs 4 and 40 provided on the inner wall of each divided case.

A storage chamber 8 for the plug 7 is formed between the partition plate and the bottom plate 6 of the instrument case 1.

The partition plate 5 has a pair of guide protrusions 9, 9 and side plates 10, 10 on both sides thereof, and engaging recesses 11, 12 are formed in the front and rear of each side plate 10, respectively.

Further, the partition plate 5 is provided with an end plate 13 that becomes a part of the instrument case 1 at the front end position, and the end plate has a pair of through holes 14 and 1.
4 is provided.

Further, although not shown, a pair of power receiving pieces are attached to the partition plate 5 so as to be in sliding contact with the pair of plug blades 15, 15 of the plug 7.

Next, the plug 7 consists of a resin plug body 16 having a pair of plug blades 15 and 15, and an operating knob body 17.

The operating knob body is formed by resin molding, and is attached to the instrument case 1.
The operating portion 1 protrudes downward from a long hole 18 provided in the bottom plate 6 of the
9 and a pair of elastic wing pieces 20 extending obliquely upward on both sides thereof.
20.

A loose fitting groove 21 into which the pair of blades loosely fits is formed on the lower surface of the plug body 16, and into the loose fitting groove, the pair of blades 20, 20 are expanded when the operating portion 19 is pressed upward. Fulcrum piece 2
2.22 is provided.

Furthermore, a guide groove 23 is provided on the upper surface of the plug body 16 and is slidably engaged with the guide protrusion 9 of the partition plate 5.

In the above configuration, in the loose fitting groove 21 of the plug body 16,
Since the pair of wings 20, 20 of the operating knob body 17 are loosely fitted, the replug main body 16 is moved by the shifting operation of the operating knob body 17.

Now, with the plug blade 15 stored in the storage chamber 8, the tip hooking portion 24 of each blade 20 is inserted into the engagement recess 1 as shown in FIG.
2, respectively.

In this state, if you want to project the plug blade 15 from the storage chamber 8 through the through hole 14, first press the operating portion 19 of the operating knob 17 upward as shown in FIG. 20 is expanded by means of fulcrum pieces 22.22.

For this reason, the tip hooking portion 24 of each wing piece 20 is disengaged from the engagement recess 12, and the operating portion 19 is moved to the plug blade protruding side.

When the upward pressing force of the operating part 19 is released, each wing piece 20 is restored by the diameter reduction elasticity of the pair of wing pieces 20 and 20, and the tip hooking part 24 is engaged with the engagement recess 11 on the front side. match.

Even if the plug blade 15 protruding from the storage chamber 8 is pressed toward the retracting side in this state, the protruding state of the plug blade is maintained because the tip hooking portion 24 is engaged with the engagement recess 11.

In order to store the plug blade 15 protruding from the storage chamber 8 into the storage chamber 8, the operation knob 17 may be operated in the opposite manner to that described above.

As described above, according to the present invention, only the operating knob body moves up and down and the plug body does not move up and down, so that the plug transfer operation is facilitated, and the up and down movement of the operating knob body is also controlled by the pair of knob bodies. Because it utilizes the elasticity of the wing pieces,
Since a coil spring as in the conventional example is not required, and the pair of wings of the operating knob fit loosely into the loosely fitting groove of the plug body, the structure is extremely simple and the assembly work efficiency is improved.

Furthermore, the tip hooking part of each wing engages with a retaining part provided in the storage chamber at a lateral position of the plug body to maintain the plug blade protruding state, so generally the lateral position of the plug body is a dead space. Since the tip hooking portion and the engaging portion can be made larger, the protruding state of the plug blade can be maintained more reliably.

[Brief explanation of the drawing]

The drawings show an embodiment of the device according to the present invention, in which FIGS. 1 and 2 are cross-sectional views of the instrument case with different operating knobs, and FIG. 3 is an exploded perspective view of the partition plate and the plug. 15.15...Plug blade, 16...Plug body, 17...Operation knob body, 20.20
... Wing piece, 21 ... Loose fitting groove, 19 ...
・・・・Operation unit, 22.22・・Fulcrum piece, 1・
...Instrument case, 8...Storage room, 24.
24...Tip hook, 11.11...
Hoaibu.

Claims (1)

[Scope of utility model registration request] A plug body having a pair of plug blades is formed with a loose fitting groove into which a pair of blades provided on the operating knob body are loosely fitted, and the plug body is moved by the shifting operation of the operating knob body, and the loose fit groove is formed in the plug body having a pair of plug blades. A fulcrum piece is provided in the fitting groove so that the pair of wings expands when the operating portion of the knob body is pressed, and the plug blade is inserted into the storage chamber of the instrument case that stores the plug body from the storage chamber. A plug device for a small electric appliance, comprising a retaining portion that engages with a tip hook portion of the pair of wing pieces due to the diameter-reducing elasticity of the pair of wing pieces when the pair of wing pieces protrude.