JP3005967B1 - Electric cord winding device - Google Patents

Abstract

An object of the present invention is to prevent an outlet from dropping into the back side of an end plate and becoming unusable, and to improve assemblability. SOLUTION: Each outlet 16 includes an outlet receiving portion 26, 27 provided at an axial end of a drum 9 and a front end plate 10.
To be clamped and fixed between the socket holder 20 and the outlet holding part 20. According to this, stress is not concentrated on a specific portion when the power plug is connected to or disconnected from the outlet 16,
Therefore, the screwed mounting portion does not break. In addition, each outlet 16 is connected to an outlet receiving portion 26,
27, the front end plate 10 is screwed to the drum 9 with screws 31.
By stopping, the outlet 16 can be fixed, so compared to the case where the outlet is screwed to the front end plate,
The assemblability can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric cord winding device in which an outlet is provided behind an end plate attached to an axial end of a drum around which an electric cord is wound.

[0002]

An electric cord winding device of this type is generally used when an electric device such as a power tool is used in a place away from a power outlet installed in a house or the like. Specifically, pull out the electric cord wound around the drum of the electric cord take-up device, connect the power plug at the tip to a power outlet installed in a house, etc., and insert the power plug of the electric equipment to be used. By inserting the terminal into the insertion hole of the outlet provided in the electric cord winding device, the electric device can be used at a location away from the power outlet.

[0003] In such an electric cord winding device, the outlet is generally assembled as follows. First, prepare two outlets and connect them. The case of the outlet is usually formed of a thermosetting resin, and two mounting portions having mounting holes are integrally formed on the periphery of the case so as to protrude. Each of these outlets is arranged behind the front end plate with the insertion hole facing the opening for the outlet formed in the front end plate of the drum, and the front end is provided using the mounting holes of the two mounting portions. The front end plate is screwed in two places from the back side or the front side of the plate.

[0004] Next, the pilot lamp is mounted by fitting the pilot lamp into the front end plate in a state where the pilot lamp faces the lamp opening formed in the front end plate from the back side of the front end plate. Is connected. Then, the front end plate is arranged so as to close the opening of the drum, and is screwed to the drum. Thereafter, the outlet is connected to the electric cord on the drum side.

However, the above-described conventional configuration has the following disadvantages. In other words, since the outlet is fixed to the front end plate by screwing, for example, if the case of the outlet deteriorates due to aging, or if the operation of inserting and removing the insertion terminal of the power plug with respect to the insertion hole of the outlet is rough, At the time of insertion / removal, stress concentrates on the screwed mounting portion, and the mounting portion is broken, and the outlet may fall on the back side of the front end plate. In such a case, since the insertion terminal of the power plug cannot be inserted into the insertion hole of the outlet, it cannot be used. Also, since each outlet needs to be screwed to the front end plate, the assemblability is poor.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to prevent an electrical outlet from falling down to the back side of an end plate and becoming unusable, and to improve an assembling property. To provide a picking device.

[0007]

In order to achieve the above object, the present invention is directed to a cylindrical drum around which an electric cord is wound around an outer peripheral portion, and an axial end portion of the drum. An end plate attached to close the opening of the drum and having an outlet opening in a region corresponding to the drum, and an insertion hole into which an insertion terminal of a power plug is inserted, and the insertion hole is connected to the outlet. An outlet that is arranged on the back side of the end plate in a state facing the opening for use, and that is electrically connected to the electric cord, and that an outlet receptacle is provided at an axial end of the drum,
An outlet holding portion is provided at a peripheral portion of the outlet opening of the end plate, and the outlet is sandwiched and fixed between the outlet receiving portion and the outlet holding portion.

According to the above-mentioned means, the outlet is clamped and fixed between the outlet receiving portion provided on the drum and the outlet holding portion provided on the end plate. Therefore, stress is not concentrated on a specific portion, so that the screwed mounting portion does not break, and it is possible to prevent the outlet from dropping into the back side of the end plate and becoming unusable.
Further, since the outlet can be fixed by attaching the end plate to the drum in a state where the outlet is arranged in the outlet receiving portion, assemblability can be improved as compared with a case where the outlet is screwed to the end plate.

In the first aspect, a lamp receiving portion is provided at an axial end of the drum, and a lamp opening is provided at an end plate and a lamp holding portion is provided at a peripheral portion of the lamp opening.
It is preferable that the pilot lamp is sandwiched and fixed between the lamp receiving portion and the lamp pressing portion with the pilot lamp facing the lamp opening (the invention of claim 2).

According to this, the pilot lamp is also clamped and fixed between the lamp receiving portion provided on the drum and the lamp holding portion provided on the end plate, similarly to the outlet described above. Can be attached favorably. Further, since the pilot lamp can be fixed by attaching the end plate to the drum in a state where the pilot lamp is arranged in the lamp receiving portion, the assemblability can be improved also by this.

It is preferable that the drum is configured to be able to be divided into two parts in the radial direction (the third aspect of the present invention). Since the drum is generally cylindrical, the size when handling is relatively large. On the other hand, according to the invention of claim 3, there is an advantage that the size of one part when handling the drum can be reduced as compared with the related art by dividing the drum into two in the radial direction.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. First, in FIGS. 2 and 3 showing the entire configuration of the electric cord winding device, a support 1 is shown.
Is formed by bending a single metal pipe, and the leg portion 2, the handle portion 3, and the support shaft portion 4 are integrally formed. A handle cover 5 is attached to the handle portion 3 for easy gripping. A reel 7 around which an electric cord 6 is wound is rotatably attached to the support shaft 4, and a cap 4 a is attached to a tip of the support shaft 4. A power plug 8 having an insertion terminal 8a is provided at the tip of the electric cord 6.

The reel 7 is attached to a cylindrical drum 9 made of synthetic resin (see FIG. 1), and to both ends of the drum 9 in the axial direction so as to close the opening 9a of the drum 9. It comprises a front end plate 10 (corresponding to an end plate of the present invention) and a rear end plate 11 made of a disk-shaped metal plate.
The front and rear end plates 10 and 11 are formed to be larger than the diameter of the drum 9, and integrally have flange portions 10 a and 11 a protruding radially outward from an outer peripheral portion of the drum 9.

A rotary knob 12 for rotating the reel 7 is provided on an outer peripheral portion on the front side of the front end plate 10 among the front and rear end plates 10 and 11. Further, in the region corresponding to the opening 9a of the drum 9 in the front end plate 10, two rectangular outlet openings 13 are formed.
One lamp opening 14 having an elliptical shape is formed. An outlet 16 having two insertion holes 15 is arranged in each outlet opening 13, and a pilot lamp 17 is arranged in the lamp opening 14.

Here, the mounting structure of the outlet 16 and the pilot lamp 17 will be described with reference to FIGS.
This will be described with reference to FIG. First, the case 18 of the outlet 16 is made of a thermosetting resin, is formed in a rectangular shape slightly larger than the outlet opening 13, and a portion corresponding to the periphery of the outlet opening 13 is pressed by the pressed portion 1.
8a. The holder 19 of the pilot lamp 17 is formed in a substantially T-shape integrally having an elliptical head portion 19a and an insertion shaft portion 19b.
A lead wire 17a is led out from 9b. Insert shaft 1
9b has a non-circular cross-sectional shape. Head 19
A step is formed in the peripheral portion of a, and this step is used as the pressed portion 19c. In the front end plate 10, the periphery of the outlet opening 13 is an outlet holder 20, and the periphery of the lamp opening 14 is a lamp holder 21. Screw insertion holes 10b are formed in three places of the front end plate 10.

In this case, as shown in FIG. 4, the drum 9 is formed by combining semi-cylindrical divided drums 22 and 23, respectively. One split drum 22
Are formed with fitting recesses 24, 24 extending in the axial direction, and the other divided drum 23 has fitting projections 25,
25 are formed, and the fitting recesses 24, 24 are formed.
The cylindrical drum 9 is configured by slidingly fitting the fitting protrusions 25 and 25 with each other in the axial direction. Therefore, the drum 9 is configured to be able to be divided into two in the radial direction.

As shown in FIG. 1, a pair of outlet receptacles 26 and 27 for receiving the outlet 16 are provided at one end of the drum 9 in the axial direction, in this case, at the end on the front end plate 10 side.
Two cylindrical lamp receiving portions 28 are provided so as to correspond to the outlet openings 13 and receive the pilot lamp 17. Each of the outlet receptacles 26 and 27 is integrally provided with a U-shaped position regulating rib 29. An axially extending slit 30 is formed in the outer peripheral portion of the lamp receiving portion 28. At the end of the drum 9 on the front end plate 10 side, boss portions 32 for receiving screws 31 are provided at three places. At the end of the drum 9 on the rear end plate 11 side, bosses (not shown) are provided. The parts 32 are provided at three places.

Next, a procedure for attaching the outlet 16 and the pilot lamp 17 will be described. First, the fitting recess 24 and the fitting protrusion 25 of the two divided drums 22 and 23 are fitted to form the cylindrical drum 9. Next, the two outlets 16 and the pilot lamp 17 are connected, and
The individual outlets 16 are arranged so as to be received by the outlet receiving portions 26 and 27 of the drum 9 (see FIG. 5).
At the same time, the insertion shaft portion 19b of the pilot lamp 17 is inserted into the lamp receiving portion 28 of the drum 9 (see FIG. 6).

At this time, each outlet 16 is positioned in the horizontal direction by a rib 29 for position control. Pilot lamp 17 has its rotation position restricted by inserting insertion shaft portion 19b into lamp receiving portion 28, and head portion 19a is received by the upper end portion of lamp receiving portion 28.

Next, the front end plate 10 is connected to the opening 9 of the drum 9.
a so as to close it. At this time, the opening 13 for each outlet is made to correspond to each outlet 16, and the pressed portion 1 of each outlet 13 is
8a so as to hold down the lamp opening 1a.
4 correspond to the head 19 a of the pilot lamp 17, and the pressed portion 19 of the pilot lamp 17 is
c so that each screw insertion hole 10b
Are arranged so as to correspond to the boss 32 of the drum 9.

Then, each screw 31 inserted through the screw insertion hole 10b is screwed into the boss 32 so that the front end plate 10
Is fixed to the end of the drum 9, and accordingly, each outlet 16 is clamped and fixed between the outlet receptacles 26 and 27 and the outlet holder 20 (see FIG. 5).
The pilot lamp 17 is clamped and fixed between the lamp receiving portion 28 and the lamp pressing portion 21 (see FIG. 6). After this,
The outlet 16 and the electric cord 6 wound around the drum 9 are connected. Note that the rear end plate 11 is also attached and fixed to the drum 9 by screwing similarly to the front end plate 10.

In the above configuration, when an electric device such as a power tool is used in a place away from a power outlet installed in a house or the like, the electric cord 6 wound around the electric cord winding device is used. Pull out and connect the insertion terminal 8a of the power plug 8 at the tip thereof to a power outlet installed in a house or the like, and connect the insertion terminal of the power plug of the electric device to be used to the outlet 16 of the electric cord winding device. By inserting the electric device into the insertion hole 15, the electric device can be used at a place away from the power outlet.

In this case, the outlet 16 is sandwiched and fixed between the outlet receiving portions 26 and 27 provided on the drum 9 and the outlet holding portion 20 provided on the front end plate 10. The stress is not concentrated on a specific portion when the power plug is inserted into or removed from the power plug 15, so that the screwed mounting portion does not break as in the related art, and the outlet 16 falls on the back side of the front end plate 10. It can be prevented from becoming unusable, and can be favorably used for a long period of time. In addition, since each outlet 16 can be fixed by attaching the front end plate 10 to the drum 9 with the screw 31 in a state where the outlets 16 are arranged in the outlet receiving portions 26 and 27,
Assemblability can be improved as compared with a case where the outlets are individually screwed to the front end plate.

In addition, the pilot lamp 17 is also held and fixed between the lamp receiving portion 28 provided on the drum 9 and the lamp holding portion 20 provided on the front end plate 10, similarly to the outlet 16. The pilot lamp 17 can also be mounted well. Further, by attaching the front end plate 10 to the drum 9 with the screw 31 while the pilot lamp 17 is arranged in the lamp receiving portion 28,
Since the pilot lamp 17 can be fixed at the same time as the outlet 16, the assemblability can be improved.

Further, the drum 9 has two divided drums 2
Combination of 2 and 23 makes it possible to divide into two parts in the radial direction, so that there is an advantage that the size of one part to be handled can be reduced as compared with the case where the drum is made up of one cylindrical part.

The present invention is not limited to the above embodiment, but can be modified or expanded as follows. The outlet 16 has two insertion holes 15 for each mouth.
Two poles are illustrated, but a grounded pole or a three pole pole may be used.

Although the outlet 16 is illustrated as having two ports integrated, one outlet may be provided independently. In this case, the outlet opening portion 14 and the outlet holding portion 20 of the front end plate 10 are also made independent for each outlet.

The front end plate 10 has a structure integrally having a flange portion 10a protruding radially outward from the outer peripheral portion of the drum 9, but the flange portion 10a may be formed of another member.

[0029]

According to the electric cord winding device of the first aspect, the outlet is sandwiched and fixed between the outlet receiving portion provided on the drum and the outlet holding portion provided on the end plate. When connecting or disconnecting the power plug from the outlet, stress is not concentrated on a specific part, so that the screwed mounting part does not break and the outlet falls down to the back of the end plate and can not be used Can be prevented. Further, since the outlet can be fixed by attaching the end plate to the drum in a state where the outlet is arranged in the outlet receiving portion, assemblability can be improved as compared with a case where the outlet is screwed to the end plate.

According to the electric cord winding device of the second aspect,
The pilot lamp is also fixed and fixed between the lamp receiving portion provided on the drum and the lamp holding portion provided on the end plate, similarly to the outlet, so that the pilot lamp can be mounted satisfactorily. Further, since the pilot lamp can be fixed by attaching the end plate to the drum in a state where the pilot lamp is arranged in the lamp receiving portion, the assemblability can be improved also by this.

According to the electric cord winding device of the third aspect,
Since the drum is configured so that it can be divided into two parts in the radial direction, there is an advantage that the size of one part to be handled can be reduced as compared with the case where the drum is formed of one cylindrical part.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part showing one embodiment of the present invention.

FIG. 2 is an overall front view.

FIG. 3 is an overall side view.

FIG. 4 is an exploded perspective view of a drum.

FIG. 5 is an enlarged sectional view taken along line AA in FIG. 2;

FIG. 6 is an enlarged sectional view taken along line BB in FIG. 2;

[Explanation of symbols]

6 is an electric cord, 7 is a reel, 9 is a drum, 9a is an opening, 10 is a front end plate (end plate), 11 is a rear end plate, 13 is an outlet opening, 14 is a lamp opening, and 15 is a plug. Hole, 16 is an outlet, 17 is a pilot lamp, 1
8 is a case, 18a is a pressed part, 19 is a holder, 19c
Denotes a pressed portion, 20 denotes an outlet pressing portion, 21 denotes a lamp pressing portion, 22 and 23 denote divided drums, 26 and 27 denote outlet receiving portions, 28 denotes a lamp receiving portion, and 31 denotes a screw.

Claims (3)

(57) [Claims] 1. A cylindrical drum around which an electric cord is wound around an outer peripheral portion, and an axial end of the drum is attached so as to close an opening of the drum. An end plate having an outlet opening; and an insertion hole into which an insertion terminal of a power plug is inserted. The end plate is arranged on the back side of the end plate so that the insertion hole faces the outlet opening, and the electric cord is provided. And an outlet electrically connected to the drum, and an outlet receiving portion is provided at an axial end of the drum, and an outlet holding portion is provided at a peripheral portion of the outlet opening of the end plate, and the outlet is provided. An electric cord winding device, wherein the electric cord winding device is sandwiched and fixed between the outlet receptacle portion and the outlet holding portion. 2. A lamp receiving portion is provided at an axial end of a drum, and a lamp opening is provided on an end plate and a lamp holding portion is provided on a peripheral portion of the lamp opening. 2. The electric cord winding device according to claim 1, wherein the electric cord winding device is sandwiched and fixed between the lamp receiving portion and the lamp holding portion in a state where the lamp faces the portion. 3. The electric cord winding device according to claim 1, wherein the drum is configured to be able to be divided into two in a radial direction.