JPH0237219Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an attachment device for a power cord of an electric cooker or the like.

Conventional Structure and Problems Conventionally, in this type of cord attachment device, as shown in FIGS. 1 and 2, a power cord 1 is divided into a cord holding portion 2 and a pressing portion 3. Attachment hole 6 provided in holding member 5 for attaching bushing 4
It was common to attach and hold the cord by pressing and inserting the bushing 4 into the cord. However, in this configuration, in order to secure the holding force when the power cord 1 is pulled, it is necessary to press the power cord 1 with the holding part 2 and the pressing part 3 of the bushing 4. Width dimension a
is somewhat smaller than the width dimension b of the groove portion 7 of the bushing 4. For this reason, when press-fitting the bushing 4 into the mounting hole 6, the maximum width c of the bushing 4 is considerably larger than the width a of the mounting hole 6, and the press-fit cannot be performed without using a special jig. , and after press-fitting the bushing 4 into the mounting hole 6,
Since the power cord 1 was internally wired, the efficiency of the assembly work was very low. Furthermore, due to the above-mentioned reasons, the width dimension a of the mounting hole 6 is restricted, and it is difficult to expect an improvement in the tensile holding power of the power cord 1.

Purpose of the invention The present invention is intended to solve these conventional problems, and aims to provide a cord attachment device that improves assembly workability and improves the tensile holding power of the cord. It is.

Composition of the Invention In order to achieve the above object, the cord attachment device of the present invention includes a power cord, a cord bushing for pinching and holding the power cord, an open end that is slightly widened, and an opening that is slightly narrowed near the closed end. a holding member having a substantially U-shaped mounting hole provided with a protruding portion, and a pressing member that presses one side of the cord bushing; the cord bushing is inserted into the mounting hole of the holding member, and the opening of the mounting hole is The end of the cord bushing is closed by a pressing member, and the configuration of the mounting hole provided in the holding member makes it easy to insert the cord bushing into the mounting hole, which significantly improves the installation workability. The tensile holding force of the material is also improved.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. In Figures 3 to 6, 11
12 is a power cord molded with ethylene propylene rubber or the like, and 12 is a cord bushing molded with thermoplastic resin such as polyamide resin, which pinches and holds the power cord 11. This cord bushing 12 holds the power cord 11 in an L-shape. holding part 13
and a pressing part 14 that presses the power cord 11, and furthermore, a groove part 15 that is slightly smaller than the external dimensions to securely hold the power cord 11 during installation.
It is equipped with In addition, a recess 1 is formed on the inner wall of the holding portion 13.
6, a convex portion 17 is formed on the inner wall of the pressing portion 14, and by bending and pressing the power cord 11, the cord tensile holding force is ensured.

Reference numeral 18 denotes a holding member made of sheet metal or the like, and this holding member 18 has a substantially U-shaped mounting hole 19 into which the cord bushing 12 is inserted. This mounting hole 19 is located on an extension line of a circular arc with a radius r and a hole 20 having a width e which is somewhat smaller than the width d of the groove 15 when the power cord 11 is not pressed in the cord bush 12. A guide portion 22 is provided that extends from a point where the width f of the formed protrusion portion 21 is reached to a width g. Reference numeral 23 denotes a pressing member that is provided, for example, on a side plate or the like and presses one side of the cord bush 12.

In the above configuration, when the cord bushing 12 attached to the power cord 11 is inserted into the mounting hole 19, the maximum width dimension g of the guide portion 22 is the width of the groove portion 15 of the cord bush 12 when the power cord 11 is not pressed. Since it is larger than the dimension d, there is no need to press the cord bush 12 from the beginning, and it can be inserted smoothly.Furthermore, the width of the guide part 22 gradually becomes narrower from the maximum width dimension g, so it can be used for special purposes. By using the elasticity of the power cord 11, the power cord 11 can be easily pushed in while being pressed without using any special tools.

The cord bush 12 inserted into the hole 20 of the mounting hole 19 in this way is inserted into the hole 20 as described above.
Since the width e of the cord bushing 12 is slightly smaller than the width d of the groove 15 of the cord bushing 12, the power cord 11 can be sufficiently pressed, thereby ensuring the cord tensile holding force.
Furthermore, the protruding part 21 provided at the boundary between the guide part 22 and the hole part 20 allows the cord bush 12, once inserted into the hole part 20, to be held without being easily removed. Further, by pressing the cord bush 12 from the guide portion 22 side using the pressing member 23, it can be securely fixed. Furthermore, as mentioned above, since pressure is gradually applied to the cord bush 12, it becomes possible to further reduce the width e of the hole 20, and as a result,
The cord tensile holding force can be further improved, and the cord bushing 12 can be attached before or after the internal wiring work of the power cord 11 is completed, thus improving assembly work efficiency. .

Effects of the invention As is clear from the above embodiments, the cord attachment device of the present invention has a mounting hole provided in the holding member.
It has a roughly U-shaped configuration with the open end slightly widened and a protrusion near the closed end that narrows the opening slightly, making it extremely easy to attach the cord bushing and improve assembly workability. , it is possible to improve the tensile holding power of the cord.

[Brief explanation of the drawing]

Figures 1a and b are a plan view and a sectional view of a holding member showing conventional mounting holes, Figure 2 is a sectional view of a conventional cord attachment device, and Figure 3 is a cord holder showing an embodiment of the present invention. An exploded perspective view of the mounting device, FIGS. 4a and 4b are a plan view and a side view of the same essential parts, and FIG. 5 is a sectional view of the same,
FIG. 6 is a side view of the same. 11... Power cord, 12... Cord bushing, 18... Holding member, 19... Mounting hole, 20...
... Hole part, 21 ... Protrusion part, 22 ... Guide part, 2
3...Press member.

Claims (1)

[Claims for Utility Model Registration] A power cord, a cord bushing for squeezing and holding the power cord, and a roughly U-shaped cord with an open end slightly widened and a protrusion near the closed end that narrows the opening slightly. It is equipped with a holding member having a mounting hole, and a pressing member that presses one side of the cord bushing. When the width is g, there is a relationship of g>d≧e>f. A cord attachment device comprising: inserting the cord bushing into a mounting hole of a holding member; and closing an open end of the mounting hole with a pressing member.