JP2012169206A - Outlet insertion plug coming-off prevention instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an outlet insertion plug coming-off prevention instrument that prevents a plug from easily coming-off from an outlet.SOLUTION: An outlet insertion plug coming-off prevention instrument 10 includes: a ring-shaped member that is screwed into a plate installation hole of an outlet box; and a hook-shaped member that is installed to a cable of which a plug is inserted into an outlet, and is configured so that the hook-shaped member can be hooked onto the ring-shaped member. In addition, an outlet insertion plug coming-off prevention instrument 20 includes: a hook-shaped member that is screwed into a plate installation hole of an outlet box; and a ring-shaped member that is installed to a cable of which a plug is inserted into an outlet, and is configured so that the ring-shaped member can be hooked onto the hook-shaped member.

Description

  The present invention relates to a device for preventing an outlet plug from being pulled out.

  Conventionally, when a plug is inserted into a wall outlet, the cable with the plug is usually held in the outlet only by the frictional force between the plug and the outlet hole.

  On the other hand, some proposals have been made in order to prevent the plug from coming out of the outlet (for example, see Patent Documents 1 and 2).

Japanese Patent No. 4482249 Japanese Utility Model Publication No. 05-45951

  If the plug is held only by the frictional force, as shown in FIG. 9, there is an inconvenience that the plug is gradually detached from the outlet due to the weight of the cable itself (this is a cable for business use in which particularly thick cables are used). In the case of In addition, when the plug is gradually removed from the outlet and a gap is formed between the plug and the outlet, dust and the like are likely to enter the gap, which may cause electric leakage or fire. In addition, when a leg is caught on the cable, the plug can be easily removed from the outlet, but there is a risk that the electric device used may break down or a secondary disaster may occur due to the operation stop of the electric device. In addition, if a leg is hooked on the cable, there is a risk that inconveniences such as damage to the vicinity of the outlet of the outlet box or bending of the plug may occur. Furthermore, since the plug is always pulled by the cable due to the weight of the cable, there is a possibility that the connecting portion between the plug and the cable is broken.

  On the other hand, since the proposal of patent document 1 has to prepare a dedicated instrument with a complicated structure, there are inconveniences such as high cost and complicated installation, and the proposal of patent document 2 is Since the fixing linear member is attached to the plug, there is a disadvantage that post-installation cannot be performed.

  The present invention has been devised in view of such circumstances, and an object of the present invention is to provide an outlet plug disconnection prevention device that prevents the plug from being easily detached from the outlet.

  The plug insertion prevention device according to claim 1 of the present application includes a ring-shaped member attached to the plate mounting hole of the outlet box with a screw and a hook-shaped member attached to a predetermined portion of the cable into which the plug is inserted into the outlet. And the hook-shaped member is hooked on the ring-shaped member.

  The plug insertion prevention device according to claim 2 of the present application is the appliance according to claim 1, wherein the ring-shaped member includes a ring and an attachment piece with a screw hole arranged at one location of the ring. It is characterized by having.

  The plug insertion prevention device according to claim 3 of the present application is the device according to claim 1 or 2, wherein the hook-shaped member has a hook and an attachment piece for attaching the hook to a cable. It is characterized by being.

  The plug insertion prevention device according to claim 4 of the present application includes a hook-like member attached to the plate attachment hole of the outlet box with a screw, and a ring-like member attached to a predetermined portion of the cable having the plug inserted into the outlet. And the ring-shaped member can be hooked on the hook-shaped member.

  According to a fifth aspect of the present invention, in the appliance of the fourth aspect, the hook-like member includes a hook and an attachment piece with a screw hole for attaching the hook to the plate. It is characterized by that.

  According to a sixth aspect of the present invention, in the appliance of the fourth or fifth aspect, the ring-shaped member includes a ring and an attachment piece for attaching the ring to the cable. It is characterized by being.

  By using the outlet plug plug prevention device of the present invention, it is possible to prevent the plug from being easily detached from the outlet, thereby causing a secondary disaster due to electric leakage, fire, failure of electrical equipment or stoppage of operation. It is possible to avoid damage around the insertion port, damage to the plug, and the like. In addition, since the plug insertion prevention device of the present invention can prevent the plug from being subjected to an excessive tensile force due to the weight of the cable, it is possible to avoid the possibility that the connecting portion between the plug and the cable is broken. Can do. Since the outlet plug prevention device according to the present invention has a simple structure using an existing outlet box, the manufacturing cost is low, the installation is easy, and there is almost no failure, and the maintenance management is performed. Cost is also low.

  Next, with reference to the drawings, an outlet plug disconnection preventing device according to the first embodiment of the present invention will be described. FIG. 1 is a perspective view showing the whole outlet plug preventing device according to the first embodiment of the present invention, and FIG. 2 is an exploded view of each component of the outlet plug preventing device shown in FIG. It is the perspective view shown.

  The outlet plug plug prevention device according to the first embodiment, indicated as a whole by the reference numeral 10 in FIG. 1, includes a ring-shaped member 12 attached to a plate (decorative plate) mounting hole of the outlet box with a screw. ing.

  FIG. 3 is an enlarged view showing the ring-shaped member 12. The ring-shaped member 12 has a ring 12a and a mounting piece 12b disposed at one position of the ring 12a, and a screw hole 12b1 is provided in the mounting piece 12b (FIG. 3A). )reference). A cylindrical body 12'b with a mounting piece is prepared, each end of a predetermined length of wire 12'a is inserted into the cylindrical body 12'b from each end of the cylindrical body 12'b, and the ends are overlapped The ring-shaped member 12 may be formed by crimping the cylindrical body 12'b (see FIG. 3B).

  The outlet plug preventing device 10 also includes a hook-like member 14 attached to a predetermined portion of the cable. As the attachment location of the hook-like member 14, an arbitrary location close to the cable plug is selected so that an excessive tensile force due to the weight of the cable is not generated in the plug.

  FIG. 4 is an enlarged view showing the hook-like member 14. The hook-like member 14 has a hook 14a and an attachment piece 14b for attaching the hook 14a to the cable. A sleeve tube whose side surface is cracked in the longitudinal direction is prepared as a mounting piece 14b, and an end of a J-shaped bracket to be a hook 14a is inserted into the mounting piece 14b attached to the cable, and the mounting piece 14b is attached at a predetermined position of the cable The hook-shaped member 14 may be formed by pressure bonding (see FIG. 4A). Alternatively, a synthetic resin binding band (for example, a registered trademark “Insulok”) having a J-shaped portion that becomes the hook 14a may be used as the hook-like member 14 (see FIG. 4B).

  The outlet plug insertion prevention device 10 is used by hooking a hook-like member 14 attached to a predetermined portion of a cable on a ring-like member 12 attached to an outlet box.

  FIG. 5 is a view showing the outlet plug disconnection prevention device 10 corresponding to two cables. By attaching the hook-shaped member 14 to a predetermined location of each cable and hooking each hook-shaped member 14 on the ring-shaped member 12, two cables can be handled.

  Next, an outlet plug prevention device according to a second embodiment of the present invention will be described. FIG. 6 is a perspective view showing the entire outlet plug preventing device according to the second embodiment of the present invention, and FIG. 7 is an exploded view of each component of the outlet plug preventing device shown in FIG. It is the perspective view shown.

  The outlet plug insertion prevention device according to the second embodiment, indicated as a whole by the reference numeral 20 in FIG. 6, includes a hook-like member 22 attached to a plate (decorative plate) attachment hole of the outlet box with a screw. ing.

  The hook-like member 22 has a hook 22a and a mounting piece 22b provided with a screw hole 22b1. FIGS. 8A and 8B are enlarged views showing an example of the hook-like member 22. The hook-like member 22 shown in FIG. 8A is formed by preparing a cylindrical body with screw holes 22b1 as the mounting piece 22b, inserting one end of a wire hook 22a into the cylindrical body, and crimping the cylindrical body. ing. In the hook-like member 22 shown in FIG. 8 (b), one end of the hook 22a inserted into the cylindrical body is bent to prevent dropping.

  The outlet plug preventing device 20 also includes a ring-shaped member 24 attached to a predetermined portion of the cable. As the attachment position of the ring-shaped member 24, an arbitrary position close to the cable plug is selected so that an excessive tensile force due to the weight of the cable is not generated in the plug.

  FIG. 8C is an enlarged view showing an example of the ring-shaped member 24. The ring-shaped member 24 has a ring 24a and an attachment piece 24b for attaching the ring 24a to the cable. In the example shown in FIG. 8C, a ring-shaped member 24 is formed by preparing a sleeve tube whose side surface is cracked in the longitudinal direction as an attachment piece 24b and attaching the ring 24a to the attachment piece 24b attached to the cable. Has been.

  The outlet plug insertion prevention device 20 is used by hooking a ring-shaped member 24 attached to a predetermined portion of a cable on a hook-like member 22 attached to an outlet box.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say, it is something.

  For example, the shapes and dimensions of the ring-shaped member and the hook-shaped member shown in the above-described embodiment are merely illustrative, and other suitable shapes may be used as long as the required effects of the present invention are achieved. May be adopted.

It is the perspective view which showed the whole outlet plug insertion prevention device which concerns on the 1st Embodiment of this invention. It is the perspective view which decomposed | disassembled and showed each component of the outlet plug plug removal prevention instrument of FIG. It is the enlarged view which showed the ring-shaped member. It is the enlarged view which showed the hook-shaped member. It is the perspective view which showed the outlet plug insertion prevention device corresponding to two cables. It is the perspective view which showed the whole outlet plug insertion prevention device which concerns on the 2nd Embodiment of this invention. It is the perspective view which decomposed | disassembled and showed each component of the outlet plug plug removal prevention instrument of FIG. It is the enlarged view which showed the hook-shaped member and the ring-shaped member. It is the figure which showed the state in which the plug is coming off from an outlet socket by the weight of a cable.

DESCRIPTION OF SYMBOLS 10 Outlet plug plug prevention device according to the first embodiment 12 Ring-shaped member 12a Ring 12b Mounting piece 12b1 Screw hole 14 Hook-shaped member 14a Hook 14b Mounting piece 20 Outlet insertion according to the second embodiment Plug removal prevention device 22 Hook-shaped member 22a Hook 22b Mounting piece 22b1 Screw hole 24 Ring-shaped member 24a Ring 24b Mounting piece

Claims (6)

An outlet plug prevention device,
A ring-shaped member attached with a screw to the plate mounting hole of the outlet box;
A hook-like member attached to a predetermined portion of the cable plugged into the outlet,
An instrument configured to be able to hook the hook-shaped member on the ring-shaped member. The instrument according to claim 1, wherein the ring-shaped member has a ring and a mounting piece with a screw hole arranged at one position of the ring. The instrument according to claim 1 or 2, wherein the hook-shaped member includes a hook and an attachment piece for attaching the hook to a cable. An outlet plug prevention device,
A hook-like member attached with a screw to the plate mounting hole of the outlet box;
A ring-shaped member attached to a predetermined part of the cable plugged into the outlet,
An instrument configured to be able to hook the ring-shaped member on the hook-shaped member. The instrument according to claim 4, wherein the hook-shaped member includes a hook and an attachment piece with a screw hole for attaching the hook to the plate. The instrument according to claim 4 or 5, wherein the ring-shaped member includes a ring and an attachment piece for attaching the ring to a cable.

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