JPH0119432Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cord bushing for inserting a cord such as a power cord and attaching it to the main body of an electric appliance to protect the cord.

Generally, when using a hand-held electrical appliance such as a hair dryer, the power cord is twisted or bent, and there is a risk that the core wire may break, especially at the cord outlet of the electrical appliance. Conventionally, this has been prevented. In order to prevent this, the outer periphery of the power cord 1 has been covered and protected with a bellows-shaped bushing 2 as shown in FIG. 1, but this has not been able to completely prevent the core wire 1b from breaking.

In addition, recent hair dryers tend to have extremely high power consumption in order to improve their drying performance, and as a result, a large spark is generated at the breakage point of the core wire 1b, and this spark is transmitted to the sheath of the power cord 1.
A and the thin wall of the bushing 2 were pierced and scattered in the direction of arrow A in FIG. 1, which was extremely dangerous.

The present invention was developed in view of the above problems, and its purpose is to provide a cord bushing that improves safety by preventing sparks from scattering to the outside even if the cord breaks. .

Embodiments of the present invention will be described below based on the drawings.
2 to 4 show a first embodiment, in which a cord bushing 2 through which a power cord 1 is inserted is made of an elastic material such as rubber or PVC, and an electric appliance main body 3
A first cylindrical part 4 that fits into a cord outlet 3a and a second cylindrical part 5 protruding from the electric appliance main body 3, the first cylindrical part 4 forming a flange 4a at one end thereof. A hanging ring 4b is integrally formed therewith, the flange 4a is fitted onto the electric appliance main body 3, the cord bushing 2 is locked to the electric appliance main body 3, and the power cord 1 is fixed to the electric appliance main body 3 with a fixture 7. That's what I'm doing. Further, the second cylindrical portion 5 is formed into a bellows shape by connecting a plurality of first rings 5a with a thin second ring 5b, so that it can easily bend to follow the power cord 1. Furthermore, the cord bushing 2
A space 6 is formed between the inner peripheral surface of the cord insertion hole and the outer peripheral surface of the power cord 1, and the space 6 is closed at the protruding end of the cord bushing 2.

Therefore, when the power cord 1 is bent due to twisting or bending, the cord bushing 2 bends following the power cord 1, thereby preventing the power cord 1 from being bent excessively at the power cord outlet 3a. This prevents the core wire 1b from breaking at the cord outlet, and even if the core wire 1b were to break, the spark would tear the sheath 1a of the power cord 1, and the spark would fly out of the power cord 1. The force of the spark is rapidly weakened in the space 6 formed within the cord bushing 2, and the spark does not overlap the cord bushing 2.

FIG. 5 shows a second embodiment, in which a space 6 formed between the inner peripheral surface of the cord insertion hole and the outer peripheral surface of the power cord 1 is smaller on the cord outlet side than on the protruding side. (a<b in FIG. 5), and the thickness of the second ring 5b of the cord bushing 2 is larger on the cord outlet side than on the protruding side.

Therefore, the part where the space part 6 is small and the wall thickness is large is difficult to bend, and the part where the space part 6 is large and the wall thickness is small is easy to bend.
In the event that the wire breaks due to twisting or bending,
This is to ensure that wire breakage occurs at this thick stepped portion. That is, if a wire breakage occurs outside the cord bushing 2, sparks will fly out, which is dangerous, so the wire breakage is made to occur inside the bushing 2 as described above.

As described above, the present invention provides a cord bushing for an electrical appliance in which one end is fitted into the cord outlet of the electrical appliance body, the other end projects from the electrical appliance body, and the cord is inserted into the cord bushing. A space is formed between the inner peripheral surface of the cord insertion hole and the outer peripheral surface of the cord, and the space is closed at the protruding end of the cord bushing, so even if the cord breaks, sparks will not occur. Since the force of the cord bushing is weakened by the space and the cord bushing is not torn, and the space is closed at the protruding end of the cord bushing, the sparks will not scatter to the outside, increasing safety. It will improve.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a conventional example, FIGS. 2 to 4 show a first embodiment of the present invention, FIG. The figure is a partial cross-sectional side view of the same as above, and Figure 4 is A-A of Figure 2.
A sectional view and FIG. 5 are partially sectional side views showing a second embodiment of the present invention. 1...Power cord, 2...Cord butsing,
3...Electrical appliance body, 3a...Cord outlet, 5
a...First ring, 5b...Second ring, 6
...Space department.

Claims (1)

[Claims for Utility Model Registration] 1. A cord bushing for an electrical appliance, which has one end fitted into a cord outlet of an electrical appliance main body, the other end protrudes from the electrical equipment main body, and a cord inserted into the cord, A cord for an electrical appliance, characterized in that a space is formed between an inner peripheral surface of a cord insertion hole of a bushing and an outer peripheral surface of the cord, and the space is closed at a protruding end of the cord bushing. Butsing. 2. The space between the inner peripheral surface of the cord insertion hole and the outer peripheral surface of the cord should be smaller on the cord outlet side than on the protruding side, and the thickness of the cord bushing should be smaller on the cord outlet side than on the protruding side. A cord bushing for an electrical appliance according to claim 1 of the utility model registration claim, characterized in that the cord bushing has a large diameter.