JPS5919352Y2 - appliance plug device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a plug device that can be applied to small electric appliances such as power adapters, portable lamps, and electric shavers.

In this type of device, a power supply plug is housed at the end of an electrical appliance case, and an operation knob provided on the bottom surface of the plug is made to protrude from the bottom surface of the case, and when the knob is moved, the plug blade of the plug is moved outside the case. The plug protrudes and locks the plug when it protrudes.

In order to lock the plug, the conventional device provides an engaging recess on a support plate on which the plug is slidably placed, and engages the insulating base itself of the plug, or the insulating base In contrast, the knob is provided to be movable up and down, and the base end of the knob is engaged with the engagement recess.

Therefore, in the former case, the plug itself moves up and down, which causes the plug to wobble, making it difficult to operate the plug. There is a drawback that the area is shallow and the insulating base or the knob easily disengages.

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.

In FIGS. 1 to 6, 1 is an electrical appliance case and is composed of two divided cases 2 and 3. Case 1 houses power supply parts such as a storage battery and its charging circuit parts; A storage chamber 6 for slidably housing a power supply plug 5 is formed by a partition plate 4 at the end of the housing.

The partition plate 4 has a pair of guide walls 7 . It guides and regulates the sliding position of the plug 5 so that the blades 8, 8 pass through the through holes 9, 9 provided in the side wall of the case.

A pair of contact pieces 10, 10 are attached below the partition plate 4, and the free end 10' of each contact piece faces above the partition plate 4 through a window 11 provided in the partition plate 4, and the plug blade 8.

The plug 5 is connected to the partition plate 4 and the case top plate 1 that form the storage chamber 6.
2, it is regulated so that it cannot move in the vertical direction.

The plug 5 is composed of a plug blade 8.8 and an insulating base 13 into which the plug blade is insert-molded, and the plug 5 is provided with an operating knob 14 on its upper surface.

As shown in FIG.
6 and an elastic connecting part 17, the connecting part is connected to the operating part 15.
and the engaging arm portion 16 is connected to the insulating base 13, and the knob 14 is integrally molded with the insulating base 13.

The operating portion 15 and the arm portion 16 protrude outward from the case from the slit hole 18 of the case top plate 12, and the operating portion 15 extends diagonally rearward with respect to the plug 5 from the upper end of the connecting portion 17. 16 extends horizontally forward, and the arm portion 16
An engaging protrusion 16' is formed on the lower surface of the front end.

The upper surface of the case upper plate 12 is provided with locking recesses 19, 19' into which the engaging protrusions 16' engage.

In the above configuration, when the plug blade 8 is in the stored state as shown in FIG. 1, the engaging protrusion 16' of the knob 14 is engaged with the rear locking recess 19'.

If the plug blade 8 is not to be protruded in this state, by pressing the operating part 15 downward with the finger 20 as shown in FIG. rotates upward to engage the locking recess 19' of the engaging protrusion 16'.
The engagement with the plug blade 8 is released, and by biasing the operating part 15 forward in this state, the plug 5 moves forward, and the plug blade 8
, 8 project outward from the case from the through holes 9, 9.

In this state, by releasing the forward bias of the operating part 15, the connecting part 17 is restored by its elasticity, and as shown in FIG. , and maintains the protruding state of the plug blades 8, 8.

When storing the plug blades 8, 8 from this state, the operation of the operating portion 15 may be reversed from that described above.

Next, FIGS. 7 and 8 show other embodiments, and FIG. 8 is an exploded perspective view of the plug 5 and the knob 21.

A recess 22 is formed in the upper surface of the insulating base 13 of the plug 5, and the knob 21 has a fitting part 23 at the lower end of the connecting part 17 that is shaped to fit into the recess 22, as shown in FIG. When the plug 5 and the knob 21 are installed in the storage chamber 6 as shown in FIG. Joint part 2
3 will not come out of the recess 22.

The plug 5 transfer operation in this case is the same as in the previous embodiment.

In this embodiment, the knob 21 can be formed separately from the plug 5, which facilitates resin molding.

9 to 13 show still another embodiment of the present invention, in which a knob 24 has two connecting portions 25.
25 and a pivot pin 2 at each proximal end of the connecting portion.
6 was provided protrudingly, and the pivot pin was hooked to a hook 27 provided on the insulating base 13 of the plug 5 to connect the knob 24 and the plug 5, and a coil spring 28 was stretched between the two. It is something.

Therefore, in the state shown in FIGS. 9 and 10 in which the engaging protrusion 16' of the knob 24 is engaged with the locking recess 19 or 19' of the upper plate 12, the knob 24 is moved by the coil spring 28 to
While the force is applied perpendicularly to the sliding direction of
In the state shown in FIG. 11, in which the operating portion 15 of the knob 24 is pressed downward and the knob 24 is swung, the coil spring 28 is energized.

Therefore, when the downward pressing force of the operating portion 15 is released, the knob 24 returns to its original state due to the restoring force of the coil spring 28.

The operation of transferring the plug 5 in this embodiment is the same as in the previous embodiment.

Further, in FIGS. 9 to 13, parts having the same functions as those of the above-described embodiment are indicated by the same reference numerals.

As described above, according to the configuration of the present invention, the operation knob protruding outward from the case is attached to the power supply plug so as to be able to swing freely and in the direction in which a part of the knob engages with the locking part provided on the case. Because it is biased, it is possible to prevent the entire plug from shaking up and down unlike conventional devices, and it is also possible to maintain the protruding state of the plug blade on the outer surface of the case, so the locking portion can be made larger. This makes it possible to further ensure the above-mentioned holding.

Furthermore, since a part of the knob can be engaged and released from the locking portion by a rocking motion of the knob, the operation is easy.

[Brief explanation of the drawing]

1 to 6 show an embodiment of the plug device according to the present invention, FIG. 1 is a sectional view of the main part of the appliance case with the plug blade stored, and FIG. 2 is a sectional view of the same with the plug blade protruded. , Fig. 3 is a sectional view of the same showing the transition state of the power supply plug, Fig. 4 is a sectional view taken along the line IV-IV in Fig. 1, Fig. 5 is a perspective view of the power supply plug and the operation knob, and Fig. 6 is the electric appliance case. FIG. 7 and 8 show other embodiments of the plug device according to the present invention, with FIG. 7 being a sectional view corresponding to FIG. 1, and FIG. 8 being an exploded perspective view of the power supply plug and the knob. 9 to 13 show still other embodiments of the plug device according to the present invention, FIGS. 9 to 12 are sectional views corresponding to FIGS. 1 to 4, and FIG. 13 shows a power supply plug and It is an exploded perspective view of a knob. 1... Electric appliance case, 5... Power supply plug, 14, 21. 24... Operation knob, 19... Locking part.

Claims (1)

[Scope of utility model registration request] 1. A power supply plug that slides within an electrical appliance case is provided with an operating knob that protrudes outward from the case so as to be swingable, and a portion of the knob is biased in a direction that engages with a locking portion provided on the case. A plug device for an electrical appliance, characterized in that it is provided with a plug. 2. Claim 1 of the above-mentioned utility model registration, characterized in that a pivot portion is provided to swingably support the tip of a connecting portion provided on the knob, and the knob is biased by a spring. Plug device for the appliance described. 3. The knob has an engaging portion that engages with the locking portion, and an elastic connecting portion that is integrated with the retaining portion that biases the locking portion in a direction to engage the locking portion. A plug device for an electrical appliance according to claim 1, characterized in that: