JPH0744871U - Plug with pull tab - Google Patents

Abstract

(57) [Abstract] [Purpose] To prevent the disconnection of the cord and also to assist with the pulling out of the cord, and to provide a plug that can be easily pulled out even with one fingertip. [Structure] A hollow body 2 is provided at a cord-side end portion of a plug body 1 by an integrally molded elastic material that includes a cord 4 and projects, and the end portion is formed in a finger ring hole 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a plug with a pull tab that is also used by being connected to each other between electric devices or at the tip of a cord of an electric product and is also used to prevent disconnection.

[0002]

[Prior art]

 As shown in FIG. 6, the conventional plug has a horizontal concave-convex groove 6 on the surface of the plug main body 1, a non-slip portion for catching a finger on the convex portion 7 at the end of the cord side, and a cord 4 for preventing disconnection. A fold-shaped protector 8 projecting from the end of the plug body 1 on the cord side is provided.

[0003]

[Problems to be solved by the device]

 In this plan, when pulling out the insertion plug from the outlet, it requires unexpected force, and when it is difficult to pull out, the plug body 1 may be strongly moved up and down, left and right, and sometimes the cord 4 may be pulled out. Also, it is especially difficult to pull out one of the plugs when there are multiple plugs inserted into the outlet. In some cases, the cord 4 may move together with the electric product, and the movement may reach the plug body 1 and the cord 4 may be bent, twisted, pulled, etc. The plug body 1 may sometimes be cut and damaged. In order to solve the above problems, it is to provide a plug with a puller that also prevents disconnection and can be pulled out with less force.

[0004]

[Means for Solving the Problems]

 In order to solve the problem, according to the present invention, a hollow body 2 made of an elastic material, which projects from a cord-side end portion of a plug body 1, is integrally molded so as to enclose a cord 4, and the end portion is further deformed. It is a ring hole 3 on which a finger can be hooked, and it penetrates a part of the hooked part of the outer ring, but they are all free from the cord 4.

[0005]

[Action]

 When a load such as bending, twisting, or pulling is applied to the cord 4, first, as shown in FIG. 4, the protruding portion of the present invention is made of an elastic material so that the contact friction is generated from the portion of the cord penetrating hole 3a of the finger ring ring hole 3. To do. The finger-holding ring hole 3 is deformed in response to the magnitude of the load to be absorbed. As the second step, the elastic body hollow body 2 starts to contact and rub from the convex portion 2a at the boundary with the finger-holding hole 3, and the hollow body 2 is contacted with the contact surface from a point to a surface depending on the magnitude of the load. The hollow body 2 itself expands and deforms accordingly to absorb the load, and finally, the hollow body 2 and the finger-holding ring hole 3 have a synergistic deformation response and elasticity due to the elastic material. The restoring force absorbs and reduces the excessive load applied to the cord 4 and contributes to the prevention of disconnection. When pulling out the plug, the plug of the present invention is inserted into the finger hook ring hole 3 by slightly bending the tip of the finger, as compared with the conventional plug which cannot be pulled out by applying a certain force to the fingertip and grasping and pulling. When pulled, the force is transmitted from the elastic hollow body 2 to the rear end of the plug body 1. A cushion effect also works because the elastic material is integrally molded. And since they are free from the included cord 4, no pulling force is applied to the cord 4, and Fig. 5 shows that the plug can be easily pulled out from the outlet.

[0006]

【Example】

 This invention will be described in detail with reference to the drawings.

The plug of the embodiment of the present invention is, for example, rubber, soft polyvinyl chloride, or other synthetic resin, which is an elastic material and is made of an insulating material. As shown in FIG. 1, a round shape, a semi-round shape, and a square shape are used. As long as it has various shapes, such as a shape, and has strength that can withstand use, there is no problem even if it has a notch or a notch, and the length and size of the hollow body 2 of the elastic material and the finger ring hole 3 are appropriate. In addition, the context of those positions may have a reverse configuration. The finger-holding hole 3 may also have a suitable roughness or unevenness so that the finger-holding hole 3 can be easily hooked. In FIG. 1 of an embodiment, in the inside of the plug body 1, the cord 4 connected to the plug blade 5 is integrally crimp-molded with the outer material as in the conventional plug, but the hollow portion of the elastic material in the protruding portion is used. In the inside of the body 2 and the return hole 3, the state in which the cord 4 is free is shown in FIGS. 2 and 3. This looseness is important, and when a bending load is applied to the cord 4 as shown in Fig. 4, the load is transferred to the outer periphery by contact friction with the portion that covers the outer periphery while bending in that direction. After that, the burden will be shared, so the load on the cord will be reduced and it will help prevent disconnection.

[0008]

[Effect of device]

 As in the present invention, since the hollow body 2 made of an elastic material and the finger ring hole 3 are provided so as to protrude from the plug body 1, even when a single plug is used or when a plurality of plugs are lined up and it is difficult to pull out, any finger, It can be easily pulled out using only one finger. Also, since the protruding portion is made of an elastic material, the cushioning effect reduces the various loads applied to the cord 4, so that the cord 4 can be prevented from being broken, and the plug can be prevented from being damaged. Helps eliminate danger, inconvenience, and inconvenience

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a plug with a pull handle of the present invention.

FIG. 2 is a transverse cross-sectional view taken along line 2′-2 ″ of the above.

FIG. 3 is a transverse cross-sectional view taken along the line 3′-3 ″ of the above.

FIG. 4 is a vertical cross-sectional view showing a state where a load is applied to the cord 4 in FIG. 1 and an elastic material acts.

5 is a plan view of the plug of FIG. 1 in use.

FIG. 6 is a perspective view of a conventional plug

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Plug main body 2 ... Hollow body of elastic material 3 ... Ring hole of elastic material 4 ... Cord 5 ... Plug blade 6 ... Horizontal linear groove / groove 7 ... Plug Convex shape of the end portion 8 ... Folded protective body 2a protruding from the end portion of the plug ... Convex portion of the boundary between the hollow body 2 of the elastic material and the finger ring hole 3 of the elastic material 3a. Through hole for the cord in the finger ring hole 4a ... Conductor in the cord

Claims (1)

[Scope of utility model registration request] 1. A hollow body 2 made of an elastic material is integrally formed and protrudes at a cord-side end portion of a plug main body 1, and a tip thereof is transformed into a finger-holding ring hole 3. A plug with a pull handle that also prevents disconnection.