JPH03133073A - Power supply plug - Google Patents

Abstract

PURPOSE:To readily pull out a plug from a plug socket by providing a pushing member which works almost parallel to the direction in which an attachment terminal is attached, and a member for controlling the pushing member. CONSTITUTION:A freely sliding pushing bar 4 is provided within a guide hole 3 disposed at the center of an attachment terminal 2 and parallel to the attachment terminal 2. A cylindrical roller 6 rotatable about a shaft 7 is attached to the head portion of the inner end of the pushing bar 4 and the head portion of the inner end makes contact with a control bar 5 via the roller 6, the control bar 5 having a taper-shaped inner end. After electrical equipment is used, the control bar 5 protruding to the side face of a plug main body is pushed and at the same time the pushing force is transmitted to the pushing bar 4 via the roller 6, and then the pushing bar 4 protrudes from the plug main body and pushes the surface of a plug socket hard, and its reaction force causes the attachment terminal 2 i.e. the power supply plug main body 1 to be detached from a pug socket. Thus the power supply plug is readily pulled out from the plug socket by held of the pushing force.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a power plug having a pull-out mechanism that facilitates pull-out from an outlet.

[Prior Art] Conventional power plug locks include a protrusion on the main body of the power plug to prevent slipping and a recess formed by the protrusion so that the electrical device can be easily removed from the outlet after use. Generally, a plug puller has a structure in which the fingers of the person pulling out the plug grasp the recessed portion, and the fingers are caught on the protrusion to prevent slipping.

That is, FIG. 5 illustrates the structure of such a conventional general power plug, and FIG. 5(a) is a plan view of the conventional plug, and FIG. 5(b) is a side view thereof.

In these figures, 1 is the main body of the power plug, 2 is the insertion terminal, 8 is the electric cord, and 22 and 23 are the above-mentioned projections.

However, in such conventional power plugs, the socket built into the outlet is generally configured to firmly hold the insertion terminal of the power plug in order to ensure current contact. There were many cases in which a greater force than expected was required when attempting to pull the device out of the outlet.

If the plug does not come out easily, some users may grab the electrical cord and pull it, which may lead to disconnection, malfunction, or damage to the electrical equipment.

Furthermore, when pulling out the power plug from a mobile outlet such as a power strip, you need both hands to secure the outlet side and a hand to grasp the power plug. This requires quite a bit of strength in each hand, and also requires the use of both hands, which has the disadvantage that your hands are full.

This kind of thing used to not be much of a problem, but in recent years, factors such as an aging society and an increase in the number of elderly households have caused it to become a big problem when pulling out the plug. It has been desired to realize a power plug that does not require force or can be easily pulled out from a mobile outlet such as a power strip with one hand without using both hands.

[Problems to be Solved by the Invention] In view of the above-mentioned points, it is an object of the present invention to provide a table tap that does not require a great deal of force when pulling out the plug from the outlet, or that can be easily used with one hand without using both hands. The aim is to provide a new power plug that can be pulled out from a mobile outlet such as a power outlet.

[Means for Solving the Problems] A power plug of the present invention that achieves the above-mentioned object has the following configuration.

That is, the power plug of the present invention has a push-out member that acts (generates push-out force) substantially parallel to the insertion direction of the plug-in terminal;
The power plug is characterized in that it is provided with a member for operating the push-out member.

Further, in the power plug of the present invention, preferably, the push-out member slides in and out of the plug body in a direction substantially perpendicular to the surface on which the insertion terminal is provided. It is something.

[Function] Hereinafter, the power plug of the present invention will be explained in more detail.

In particular, the power plug of the present invention is provided with an extrusion member that operates (generates an extrusion force) substantially parallel to the insertion direction of the plug-in terminal, and a member that operates the extrusion member. When removing the bow from the outlet, by holding the member that operates the push-out member between, for example, two fingers, the push-out force that acts approximately parallel to the insertion direction of the plug-in terminal is automatically applied to the outlet surface. With the help of the pushing force, the power plug can be easily pulled out from the outlet.

The mechanism for operating the extrusion member is not particularly limited, but it is practical to use a mechanism using mechanical elements such as a lever or a link mechanism. , to explain in more detail.

[Example] FIGS. 1(a) to (C) show a first embodiment of the power plug according to the present invention, and FIG. 1(b),
(c) is a cross section taken along the line AA in FIG. 3(a).

As shown in these figures, the power plug main body 1 of the present invention has a plug terminal 2 for connecting to an outlet (not shown) and an electric device (not shown).
(not shown). The mechanism for connecting the plug-in terminal 2 to the outlet is not covered by the present invention, and is therefore not shown here. Figure (a)
As shown in FIG. 2, a guide hole 3 is provided in the center of the plug-in terminal 2 in parallel with the plug-in terminal 2, and a slideable push-out rod 4 is provided within the guide hole 3. A cylindrical roller 6 rotatable about a shaft 7 is attached to the head of the inner end of the push rod 4. It is in contact with the tapered operating rod 5, and when the plug is not in use or when the plug is in use (when attached to an outlet), the guide hole 3 A push rod 4 is housed inside.

In this configuration, after using the electrical device, when the power plug main body 1 is held between two fingers, that is, when the operating rod 5 protruding from the side of the main body is pushed in, this pushing force is simultaneously applied to the pushing rod through the rollers 6. 4 and protrudes from the plug body (the state shown in Figure 1 (C)), and strongly presses the surface of the outlet (not shown), and the reaction force causes the plug terminal 2, that is, the power plug body 1, to push against the outlet. It comes out of.

In this embodiment, the operating rod 5 and the pushing rod 4 are configured to interpose the rollers 6 so that they can be smoothly interlocked, but a sliding interlocking mechanism may also be used in which the heads of both are tapered. It is something.

Although not shown, it is preferable that the operating rod 5 and the pushing rod 4 be provided with a stopper to prevent them from falling out of the power plug body 1. In addition, when inserting the power plug of the present invention into an outlet, two side surfaces 24 and 25 of the power plug main body 1 without the operating rod 5, that is, the left and right sides 24 and 25 in FIG. This can be done practically the same as before by holding it between your fingers. Furthermore, it is preferable that the maximum extension length 26 of the push-out rod 4 shown in FIG.

In the second embodiment shown in FIG. The structure shown is connected to the inner end of the

In addition, in the third embodiment shown in FIGS. 3(a) and 3(b), a member 1 in which the above-mentioned operating rod 5 and push-out rod 4 are integrated.
3 is realized by a lever using a shaft 12 fixed to the power plug body 1 as a fulcrum. Furthermore, if a similar member 13' is provided at a symmetrical position on the back side of the plug body, the pulling direction will be parallel to the plug-in terminal 2, and the plug can be pulled out more easily. Note that FIG. 3(b) is a cross section taken along line BB' in FIG. 3(a).

In the fourth embodiment shown in FIGS. 4(a) and 4(b), the operating rods 14.15 are overlapped with each other by the shafts 21 fixed to the power plug body 1, and the movable shafts 20.19 are respectively overlapped. It is connected to push rods 17 and 16, and the push rods 16 and 17 are also connected by a movable shaft 18. Note that FIG. 4(b) is a cross section taken along line cc' in FIG. 4(a). With this structure, when the operating rod 14.15 is held between two fingers, the movable shaft 19.20 moves toward the plug-in terminal surface using the fixed shaft 21 as a fulcrum, and as a result, the push-out rod 16.17 moves toward the outlet. (not shown), and the reaction force causes the plug-in terminal 2, that is, the power plug body 1, to be pulled out from the outlet.

Although the present invention has been described above in detail based on preferred embodiments thereof, the validity and scope of rights of the present invention are not limited by these specific embodiments, and the scope of the present invention is not limited by these specific embodiments. Of course, many changes and modifications can be made without departing from the spirit.

[Effects of the Invention] As described above, according to the present invention, a power plug that can be easily pulled out from an outlet can be obtained, and can be effectively used in all fields of electrical equipment.

Since the power plug of the present invention can be easily pulled out from an outlet, it is suitable for use by elderly people who have lost their strength and for use in elderly households.

When using the power plug of the present invention, when pulling out the plug,
There is no longer the need to forcefully pull the cord, and the number of malfunctions and disconnections in electrical equipment that were caused by the cord being pulled too strongly is reduced.

[Brief explanation of the drawing]

Figure 1 (a), (b), (C), Figure 2, Figure 3 (a)
, (b), and FIGS. 4(a) and (b) are all schematic model diagrams showing one embodiment of the power plug of the present invention. Fig. 5 shows the structure of a conventional general power plug; Fig. 5 (a) is a plan view of the conventional plug; Fig. 5 (a) is a plan view of the conventional plug;
b) is a side view thereof. 1: Power plug body, 2: Plug-in terminal 4: Push-out rod, 5: Operating rod 8: Electric cord, 9: Eccentric cam 13.13': A member that integrates the push-out rod and the operating rod, 22.23: Projection Patent application Daitoshi Co., Ltd. Figure 2 Figure 4 Figure 4

Claims (2)

[Claims] (1) A power plug characterized in that it is provided with a push-out member that generates a push-out force that acts substantially parallel to the insertion direction of the plug-in terminal, and a member that operates the push-out member. (2) The power plug according to claim 1, wherein the push-out member slides in and out of the plug body in a direction substantially perpendicular to the surface on which the insertion terminal is provided.