JPH0733391Y2 - power outlet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a power outlet of a power outlet for connecting a round pin plug.

[Conventional technology]

In some conventional power outlets, a plug-in plug having a flat blade and a round pin plug having a cylindrical round pin can be connected.

[Problems to be solved by the device]

However, as the blade receiving spring of this type of conventional power outlet, the one for plug-in plugs was used as it is. There was a problem that the round pin plug could be easily removed by the applied pulling force.

The present invention has been made in view of the above points, and an object thereof is to increase the holding force of a round pin plug and to easily fix a blade receiving spring in the body, and further It is to provide a power outlet that can be easily attached to a panel.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention provides a locking claw provided with a body having an open upper surface for housing a blade receiving spring and a cover attached to the opening surface of the body so as to project from the side surface of the body. To form an outlet main body by fitting it into the engaging hole of the cover mounting piece in a concave-convex manner, and attaching the outlet body to the mounting hole of the panel in a substantially J-shaped downward direction from the cover. The blade receiving spring is extended to the inside of the cover and has an insertion hole on the top surface of the cover into which both the plug blade of the insertion plug and the round pin of the round pin plug can be inserted, and is housed in the body so as to face the insertion hole. A pair of elastic contact pieces bent in a V shape are provided close to each other on the upper ends of both side pieces of the base part, and a hole is formed in the bent part of the elastic contact part so that the elastic contact piece can be hung vertically from the base part. Insert the piece into the locking hole formed on the bottom of the body. And, by engaging the cut-and-raised piece fixing piece to the opening edge of the locking hole, in which is fixed in the body.

〔Example〕

The blade receiving spring A used in this embodiment includes a U-shaped base 1 as shown in FIG. 1. The fixing piece 3 is hung from the lower end of the center piece 1a of the base 1, and the fixing piece 3 A terminal piece 4 for connecting a power line is laterally extended from the side portion. Base 1
At the upper ends of both side pieces 1b, elastic contact pieces 2 bent in a V shape are formed to face each other, and a flat blade blade is sandwiched between the bent portions of the elastic contact pieces 2 adjacent to each other. Then, the plug blade of the insertion plug is held. However, in the conventional power outlet that connects both the insertion plug and the round pin plug, the blade receiving spring A having only the above-described structure is used, and the round pin is held by the bent portions of both elastic contact pieces 2. Therefore, the round pin plug was easily removed. Therefore, in the blade receiving spring A used in the present embodiment, the square holes 5 are formed in the bent portions of the elastic contact piece 2 respectively. The width of the square hole 5 is smaller than the outer diameter of the round pin. When the square hole 5 is formed in the bent portion in this manner, the opening edge of the square hole 5 is pressed against the peripheral surface of the round pin, and the peripheral surface of the round pin inserted between the elastic contact pieces 2 is held at four places. be able to. Therefore, the holding force of the round pin plug becomes strong, and the round pin plug will not come off due to the force applied to the round pin plug when the cord is reciprocated.

FIG. 2 shows the entire power outlet of this embodiment. The outlet main body of the power outlet is a blade receiving spring A.
Body 6 having an open top surface for housing
The cover 7 is attached to the opening surface of the body 6, and the locking claw 9 protruding from the side surface of the body 6 is fitted into the locking hole 10 of the mounting piece 11 of the cover 7 in a concavo-convex manner to form the body 6 Combined with the cover 7. A substantially J-shaped locking piece 12 extending downward is formed on the cover 7, and the tip of the locking piece 12 and the flange of the peripheral portion of the outlet main body form the opening edge of the mounting hole. By sandwiching it, it is attached to a panel or the like. On the upper surface of the cover 7, there is formed an insertion hole 8 into which both the plug blade of the insertion plug and the round pin of the round pin plug can be inserted. The blade receiving spring A housed in the body 6 inserts the fixed piece 3 into the locking hole 13 formed in the bottom surface of the body 6, and the cut-and-raised piece 3a of the fixed piece 3 is used as the opening edge of the locking hole 13. By locking, it is fixed in the body 6. As shown in FIGS. 2 (b) and 2 (c), the terminal piece 4 is bored from the side surface of the body 6 which is bulged laterally.

In addition, in order to confirm whether the holding force of the blade receiving spring A was improved, an experiment was performed using a jig 13 having a shape similar to the round pin plug shown in FIG. It was found that the obtained holding strength was obtained.

[Effect of device]

As described above, the present invention includes a body having an open upper surface in which the blade receiving spring is housed, a cover attached to the opening surface of the body, and a locking claw protruding from the side surface of the body. The outlet body is constructed by fitting the engagement holes into the engagement holes of the mounting piece and combining them integrally, and a substantially J-shaped engagement piece for attaching the outlet body to the mounting hole of the panel extends downward from the cover. Since it is formed, the structure of the outlet main body is simple, and the assembly and installation are easy, and the insertion hole that can insert both the plug blade of the insertion plug and the round pin of the round pin plug is formed on the upper surface of the cover. However, the blade receiving spring housed in the body so as to face the insertion hole is provided with a pair of elastic contact pieces curved in a V shape at the upper ends of both side pieces of the base portion so as to closely face each other. A hole is formed in the bent part of the contact piece In addition to the blade of a normal flat plug plug, a round pin plug can be connected, and when the round pin is plugged in, the peripheral surface of the round pin is pressed against the opening edge of the hole. The pressure contact parts can be set to 4 points to increase the holding strength of the round pin plug. Therefore, when the cord is reciprocated, there is an advantage that the round pin plug will not come off due to the force applied to the round pin plug. Since the fixing piece to be hung vertically is inserted into the locking hole drilled on the bottom surface of the body, and the cut-and-raised piece of the fixing piece is locked to the opening edge of the locking hole to fix it inside the body. There is an advantage that the receiving spring can be easily fixed.

[Brief description of drawings]

1 (a) and 1 (b) are perspective views of a blade receiving spring used in an embodiment of the present invention seen from the front and the rear, respectively, and FIGS. 2 (a) to 2 (d) are part of the same. The broken front view, side view, plan view and bottom view, and FIGS. 3A and 3B are a front view and a plan view of a jig for measuring the holding strength. A is a blade receiving spring, 2 is an elastic contact piece, 3 is a fixed piece, 3a is a cut and raised piece, 5 is a square hole, 6 is a body, 7 is a cover, 8 is an insertion hole,
9 is a locking claw

Claims (1)

[Scope of utility model registration request] 1. A body in which a blade receiving spring is housed and whose upper surface is opened, and a cover which is attached to the opening surface of the body,
The socket body is constructed by fitting the locking claws protruding from the side surface of the body into the locking holes of the mounting piece of the cover and combining them integrally, and is used to attach the socket body to the panel mounting holes. A J-shaped locking piece is formed so as to extend downward from the cover, and an insertion hole into which both the plug blade of the insertion plug and the round pin of the round pin plug can be inserted is formed on the upper surface of the cover. The blade receiving spring, which is housed so as to face the insertion hole, is provided with a pair of elastic contact pieces bent in a V shape on the upper ends of both side pieces of the base portion so as to closely face each other. By forming a hole in the base, inserting the fixing piece that is hung from the base into the locking hole that is drilled in the bottom surface of the body, and by locking the cut-and-raised piece of the fixing piece at the opening edge of the locking hole, Power supply container characterized by being fixed inside the body Door.