JP2806982B2 - Plug-in plug - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

The present invention relates to a plug having a plug blade to which an electric wire is connected and which is inserted into an outlet.

[Prior art]

As shown in FIG. 5, in the conventional plug, when the electric plug 5 is inserted into the outlet 7, the electric wire 5 is pulled out from the back surface of the plug main body 4. That is, the direction in which the electric wire 5 is pulled out from the plug body 4 is the same as the direction in which the plug blade projects from the plug body 4 and is opposite to the direction.

[Problems to be solved by the invention]

In the above-described conventional configuration, when the protrusion P including the bending allowance of the electric wire 5 from the wall surface 6 to which the outlet 7 is attached becomes large, and the outlet 7 is provided in a narrow place hidden by furniture or the like, However, there is a problem that the outlet 7 is difficult to connect. In the case of equipment that is often arranged along the wall 6 such as an air conditioner or an air purifier, it is desirable to arrange the equipment in front of the outlet 7 so that the electric wire 5 is not routed. Since the margin P is large, the device is arranged away from the wall surface 6, and a problem that the occupied space becomes large occurs. The present invention is aimed at solving the above problems,
An object of the present invention is to provide a plug that can be connected to an outlet even in a narrow place by reducing the amount of protrusion from the wall surface and that can select the direction in which the electric wire is to be drawn out, thereby improving usability.

[Means for Solving the Problems]

According to the present invention, in order to achieve the above object, a peripheral body having a circular shape and a detachably coupled peripheral surface held in a form penetrating a blade provided with a terminal portion for electric wire connection at one end thereof is provided. The plug body is formed by joining the cover covering the terminal portion with one assembly screw passing through the center of the body to form a plug main body. An electric wire drawer for drawing out in an orthogonal plane, wherein the electric plug is inserted into the electric outlet and then rotated to prevent the electric plug from being pulled out of the electric outlet. Positioning means for positioning the cover at a plurality of rotational positions with respect to the body so that the body and the cover mesh with each other so as to select any one of a plurality of directions defined in advance. A. A positioning ridge formed on the inner peripheral surface of the cover so as to run in a direction in which the body and the cover are joined; and a plurality of peripheral portions of the body which can be engaged with the positioning ridge. It is good to form with the positioning groove formed in. Alternatively, the positioning means may be formed by positioning projections protruding from an opening edge of the cover and positioning recesses formed at a plurality of locations on a peripheral portion of the body so as to be engageable with the positioning projections. It may be.

[Action]

According to the above configuration, the direction in which the wire is drawn is set in a plane orthogonal to the direction in which the blade is protruded, so that the margin in the state of being inserted into the outlet is small, even in a narrow place hidden by furniture or the like. It can be plugged into an outlet. Further, when connecting to an outlet behind the device, the device can be arranged without separating from the wall surface, and the occupied space is reduced. In addition, the cover is positioned at a plurality of rotational positions with respect to the body so that the lead-out direction of the electric wire with respect to the body is selected from any of a plurality of directions defined in advance. Since the positioning means is provided, even when the body having a circular peripheral surface is connected to the cover with only one assembly screw, the body and the cover do not rotate relative to each other, and a plurality of the body and the cover are used. Can be positioned at the rotation position, so that the cover that defines the direction in which the wire is drawn out can be appropriately rotated and attached to the body that defines the position where the blade is connected to the outlet. You can choose from directions. In addition, a hook blade is used as a plug blade, which is prevented from falling out of the outlet by being rotated after being inserted into the outlet, and acts on the cover because the body and the cover are prevented from rotating by the positioning means. Rotational force can be transmitted to the blade held by the body, and the wire drawer that draws out the wire in a direction perpendicular to the direction in which the blade protrudes is formed. It is possible to perform the rotation operation easily.

Embodiment 1 In the present embodiment, as shown in FIG. 1, an insertion plug having three blades, a pair of power blades 1a and 1b and a ground blade 1c, is exemplified. Each of the blades 1a to 1c has a blade portion 11 inserted into an outlet at one end, and a terminal portion 12 to which an electric wire is connected at the other end. The blade section 11 is a so-called hook blade having an arc-shaped cross section. After being inserted into the outlet, the blade is rotated so as to be engaged with a locking device provided in the outlet so as to be prevented from coming off. It has become.
Also, if it is rotated in the opposite direction, it can be unplugged from the outlet. Also, the blade 11 is a power blade 1a, 1
The ground blade 1c is wider than b.
The terminal portion 12 is formed by screwing a terminal screw 14 into a terminal plate 13 provided integrally with the blades 1a to 1c. A fixing piece 15 extends substantially orthogonally to the terminal plate 13. The blades 1a to 1c are provided on a body 2 made of synthetic resin.
The blades 11 are inserted through the through holes 21, respectively. The blade 11 protrudes from the surface of the body 2, and the terminal 12 is exposed on the back surface of the body 2. Each through hole 21
Are arranged so that their cross-sections are arc-shaped and located on one circumference. Therefore, the blades 1a to 1c inserted into the through holes 21 are also located on one circumference. Further, the through hole 21 corresponding to the grounding blade 1c is wider in the circumferential direction than the through hole 21 corresponding to the power blades 1a and 1b. Each of the blades 1 a to 1 c is fixed to the body 2 by screwing a fixing screw 16 through a fixing piece 15 to the back surface of the body 2. The peripheral surface of the body 2 is formed in a circular shape, and a cylindrical portion 22 protrudes from the center of the back surface. In addition, three partition walls 23 are formed on the back surface of the body 2 so as to protrude radially from the cylindrical portion 22 and partition between the adjacent blades 1a to 1c. The peripheral surface of the body 2 is formed with a step 26 at an intermediate portion between the front side and the back side so that the front side becomes the large diameter part 24 and the back side becomes the small diameter part 25. Are formed with positioning grooves 27 at 90 ° intervals in the circumferential direction. A cover 3 is fitted on the body 2 so as to cover the terminal portions 12 of the plug blades 1a to 1c, and a plug body 4 is formed by the body 2 and the cover 3. The body 2 and the cover 3 are joined by an assembly screw 31 that is screwed into the cover 3 from the surface of the body 2 through the cylindrical portion 22. The cover 3 includes a cylindrical cover body 32 fitted to the body 2 and an electric wire lead-out portion 33 for extracting electric wires connected to the blades 1a to 1c. The cover main body 32 and the wire lead-out portion 33 communicate with each other inside the cover 3. Positioning ridges 34 running in the coupling direction with the body 2 are provided on the inner peripheral surface of the cover main body 32 at three circumferential positions at 90-degree intervals. Therefore, if the positioning groove 27 of the body 2 is engaged with the positioning ridge 34 of the cover 3, the relative position of the body 2 and the cover 3 in the circumferential direction is fixed. The wire lead-out portion 33 is provided with the plug blades 1a to 1c from the plug body 4.
The wire is formed so as to be drawn out in a plane perpendicular to the projecting direction of the wire, and the wire is drawn between the cord clip 35 disposed in the wire drawing out portion 33 and the inner peripheral surface of the wire drawing out portion 33. By holding the wire, the tension of the wire is stopped. The cord clip 35 is fixed to the cover 3 by a mounting screw 38 that is screwed into a screw pot 37 protruding from the inner peripheral surface of the wire lead-out portion 33 through the cord clip 35. Here, the cord clip 35 is formed in such a size that a gap is not formed between the body 2 and the cover 3 in a state where the body 2 and the cover 3 are connected, so that the inside of the plug body 4 is not exposed to the outside. According to the above configuration, by selecting the positioning ridge 34 that engages with the positioning groove 27, the relative position of the cover 3 with respect to the body 2 is set to 90 degrees in a plane orthogonal to the direction in which the blades 1a to 1c protrude. It can be changed to four directions at intervals. Therefore, as shown in FIG. 2 (a), the drawing direction of the electric wire 5 is downward, as shown in FIG. 2 (b), the drawing direction of the electric wire 5 is upward, FIG. 2 (c)
As shown in (2), a state in which the wire 5 is pulled out rightward or leftward can be selected. If the electric wire 5 is pulled out to the left and right as shown in FIG. 2 (c), two insertion plugs can be connected side by side. Further, since the drawing direction of the electric wire 5 is orthogonal to the projecting direction of the blades 1a to 1c, as shown in FIG. Since P becomes smaller than that of the conventional configuration shown in FIG. 5, the plug can be connected to the outlet 7 even in a narrow place hidden by furniture or behind equipment.

Embodiment 2 In this embodiment, as shown in FIG. 4, the stepped portion 26 is not formed on the peripheral surface of the body 2, but is formed at intervals of 90 degrees in the circumferential direction.
A plurality of positioning recesses 28 are formed, and are engaged with the positioning recesses 28 at intervals of 90 degrees in the circumferential direction on the periphery of the opening of the cover 3.
The positioning protrusions 39 are provided in a protruding manner. According to this configuration, only the point that the relationship between the positioning groove 27 and the positioning ridge 34 is replaced by the relationship between the positioning recess 28 and the positioning protrusion 39 is different from the first embodiment.
The relative position between the cover and the cover 3 can be changed at 90-degree intervals, and the same operation and effect as in the first embodiment can be obtained. In each of the above embodiments, three positioning protrusions 34 are provided and three positioning protrusions 39 are provided. However, if at least one is provided, the same effect is obtained except for the strength surface. Is played.

【The invention's effect】

As described above, the present invention relates to a body having a circular peripheral surface which is held in a manner to penetrate a blade provided with a terminal portion for electric wire connection at one end, and the terminal portion of the blade which is detachably coupled to the body. And the cover that covers the body is connected using a single assembly screw that passes through the center of the body to form a plug body. The cover has an electric wire connected to the terminal portion in a plane perpendicular to the direction in which the plug blade projects. Forming a wire withdrawal portion to be drawn out with the plug blade, wherein the plug blade is inserted into the outlet and then rotated to prevent the outlet from being pulled out. Positioning means for positioning the cover at a plurality of rotational positions with respect to the body so as to select one of a plurality of directions defined in advance and engaging the body with the cover is provided. Because the exit direction is set in a plane perpendicular to the direction of the blade's protruding direction, the extra allowance when plugged into an outlet is small, and it can be connected to the outlet even in narrow places hidden by furniture etc. is there. Further, when connecting to an outlet behind the device, the device can be arranged without separating from the wall surface, and there is an advantage that the occupied space is reduced. In addition, the cover is positioned at a plurality of rotational positions with respect to the body so that the lead-out direction of the electric wire with respect to the body is selected from any of a plurality of directions defined in advance. Since positioning means is provided,
Even when a body having a circular peripheral surface is connected to the cover with only one assembly screw, the body and the cover do not rotate relative to each other, and the body and the cover can be positioned at a plurality of rotation positions. Because it is possible, it is possible to appropriately rotate and attach the cover that defines the direction of drawing out the electric wire to the body that defines the position where the blade is connected to the outlet, and it is possible to select the direction of drawing out the electric wire from multiple directions. There are advantages. In addition, a hook blade is used as a plug blade, which is prevented from falling out of the outlet by being rotated after being inserted into the outlet, and acts on the cover because the body and the cover are prevented from rotating by the positioning means. Rotational force can be transmitted to the blade held by the body, and the wire drawer that draws out the wire in a direction perpendicular to the direction in which the blade protrudes is formed. This makes it possible to perform the rotation operation easily.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of the present invention, FIGS. 2 and 3 are explanatory views showing a use state of the above, and FIG. 4 is an exploded perspective view showing a second embodiment of the present invention. FIG. 5 is an explanatory view showing a problem of the conventional example. 1a to 1c: blade, 2 ... body, 3 ... cover, 4 ...
Plug body, 5 ... wire, 12 ... terminal, 27 ... positioning groove, 28 ... positioning recess, 33 ... wire lead-out part, 34 ...
Positioning ridge, 39 ... Positioning protrusion.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-198065 (JP, A) JP-A-60-258878 (JP, A) Fully open Showa 56-13377 (JP, U) Really open Showa 61- 70381 (JP, U) Fully open 1986-48669 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) H01R 13/502, 13/20, 13/46 301 H01R 13/639

Claims (3)

(57) [Claims] 1. A body having a circular peripheral surface which is held by penetrating a blade provided with a terminal portion for connecting an electric wire at one end thereof, and a cover which is detachably connected to the body and covers the terminal portion of the blade. And a plug body formed by joining the plug body and the plug body using a single assembly screw passing through the center of the body, and an electric wire for drawing out the electric wire connected to the terminal portion in a plane perpendicular to the protruding direction of the plug blade on the cover. A drawer portion is formed, and the plug blade is a hooking plug blade which is inserted into the outlet and rotated to prevent the plug from being pulled out of the outlet. Positioning means for positioning the cover at a plurality of rotational positions with respect to the body so as to select one of the plurality of directions and engaging the body with the cover. It lags. A positioning ridge formed on an inner peripheral surface of the cover so as to run in a connecting direction of the body and the cover; and a peripheral portion of the body so as to be engageable with the positioning ridge. 2. The plug according to claim 1, wherein the plug is formed by positioning grooves formed at a plurality of positions. 3. The positioning means is formed by a positioning projection protruding from an opening edge of the cover and positioning recesses formed at a plurality of positions on a peripheral portion of the body so as to be engageable with the positioning projection. 2. The method according to claim 1, wherein
Insert plug described.