JPH10139290A - Cord take-up device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cord take-up device of atumatic winding type with energization by a spring, with which the convenience in handling is improved to a great extent. SOLUTION: A cord take-up device takes up a cord with energization by a spring 3 and is structured so that reels 1a and 1b in energization by the spring 3 restrained by stoppers with possibility of being released are installed in tandem arrangement. Their opposing surfaces in tandem arrangement are equipped with electroconductive members, which feed current by slide contact to the winding end of the cord Ca wound on one of the reels 1a and the winding end of other cord Cb wound on the other reel 1b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cord for connecting electric or electronic equipment to a power supply, a cord used for telephones, a cord used for transmitting signals, a cord used for audio equipment, video equipment and the like. A cord winding device that can be used for winding a cord in the electric and electronic technical fields, such as a cord used in an automobile device, etc., wherein a cord reel rotates in a direction in which the cord is wound by a spring. The present invention relates to an automatic winding type code winding device.

[0002]

2. Description of the Related Art Conventionally, this type of cord winding device has a structure in which a system for automatically winding a cord by a spring biasing method is single for a series of cords.

In this prior art apparatus, the cord can be withdrawn only at the end of the series of cords, ie, at the end. For this reason, the code wound around the code winding device, in other words, the code winding device is inevitably limited in its usability, that is, the usability is not good.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a cord winding device of the automatic winding system described above.
This is to improve usability as compared with the conventional technology.

[0005]

A cord winding device according to the present invention is biased by a spring so as to rotate in a cord winding direction.
A cord reel adapted to be releasably restrained by a stopper so as to be capable of being rotated by the spring bias is provided in tandem, and a winding end of a cord wound around one of the code reels on an opposing surface of the code reel. And a conductive member for energizing the winding end of the cord wound on the other cord reel by sliding contact.

[0006] Here, "to be installed in tandem" with respect to the code reel means that the code reel is "to be installed vertically, that is, in the direction of its rotation axis". This applies to the claims and the following description.

[0007]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

[0008] In the drawings, the code winding device is generally denoted by the reference symbol I.

The cord winding device I has cord reels 1a and 1b provided in tandem and a housing or casing 2 containing these reels.

A cord Ca, which forms one half of an electrically connected cord, is wound around the code reel 1a, and a cord Cb, which forms the other half of the electrical series cord, is wound around the cord reel 1b. Have been. Code C
One of a and Cb is connected to a plug 5 at a winding end, that is, a terminal extending outside the housing 2, and the other is connected to a winding end, that is, an outlet 6 at a terminal extending outside the housing 2. .

[0011] The surface of the side where the code reels 1a and 1b are opposed to each other is in sliding contact with the winding end of the code Ca wound around the code reel 1a and the winding end of the code Cb wound around the other code reel 1b. Are provided with conductive members E, E that are energized by the electric current.

FIGS. 4 to 9 show details of a current supply system for winding ends of the cords Ca and Cb by sliding contact with the conductive members E and E. FIG. 4, 5, and 6 show the code reel 1
FIG. 7 is a sectional view showing the arrangement of the terminals in FIGS.
8 to FIG. 9 are plan views showing the arrangement of the terminals of the lower reel 1a of FIGS. 4 to 6, and FIG. 4 is a plan view showing the arrangement of the terminals of the lower reel 1a of FIG. Longitudinal sectional view of the eye,
FIG. 5 is a sectional view taken along line VV of FIG. 9, and FIG. 6 is a longitudinal sectional view taken along line VI of FIG.

The energizing system shown in FIGS.
Are connected to terminals Ea1, Ea1 on reel 1a.
Ea2, and the in-phase ends Cb1 and Cb2 of the code Cb.
Are connected to terminals Eb1 and Eb2 on a support 21 integrated with the reel 1b and rotatably provided in the housing 2. The terminals Eb1 and Eb2 are formed in a shape extending over 360 degrees, the terminals Ea1 and Ea2 are formed in a brush shape,
The terminals Ea1 and Eb1 are in sliding contact, and the terminals Ea1
2 and Eb2 are in sliding contact.

The code reels 1a and 1b are
The inner ends of the fixing members are urged to rotate in the cord winding direction by spiral springs 3 and 3 whose outer ends are respectively coupled to the cord reels 1a and 1b, and the rotation by the spring is released by the stopper. To be restrained as much as possible. In order to restrain the rotation of the cord reels 1a and 1b by the spring so as to be releasable by the stopper, for example, the following may be performed. The details are as follows.

A disk 4 is a code reel 1a, another disk 4 is a code reel 1b, and reels 1a and 1b.
With the disk 4 on the outside and the disk 4 on the inside. The disk 4 attached to the reel 1a is slidably frictionally engaged with the reel 1a by a friction engagement member 1c integral with the reel 1a, and the disk 4 attached to the reel 1b is frictionally engaged by a friction engagement member 1c integral with the reel 1b. 1b is slidably and frictionally engaged. A concave portion 7 is formed on a part of the peripheral surface of the reels 1a and 1b, and a concave portion 8 is formed on a part of the peripheral surface of the disks 4 and 4. The concave portion 7 of the reel 1a and the concave portion 8 of the disk 4 attached to the reel are opposed to each other. The spring stopper 9 with the engaging element 9a and the spring stopper 9 with the engaging element 9a facing the combination of the concave part 7 of the reel 1b and the concave part 8 of the disk 4 attached to the reel 1b are arranged at fixed positions. The engaging element 9a of the stopper 9 has an inclined portion 9b as shown in FIG.

In FIG. 2, the recesses 7 and 8 are not shown for the reel 1b and the disk 4 attached thereto, but the reel 1b and the disk 4 attached therewith are similar to the reel 1a and the disk 4 attached thereto. 7 and 8.

On the disk 4, the peripheral surface is formed in a cam-like contour, and the steps 10a, 10a,
A protrusion 10 having a protrusion 10b and contact pieces 11a and 11b located at required positions near the steps 10a and 10b are formed. A pin stopper 12 pressed against the peripheral surface of the projection 10 is provided at a fixed position. The stopper 12 is attached to a support member 14. The support member 14 is pivotally connected to a support plate 22 integrated with the housing 2 with a pin 15 and is urged by a spring 13 in the clockwise direction in FIG. 3. Thereby, the stopper 12 is pressed against the peripheral surface of the projection 10.

In the following, points of pulling out and winding the cord,
The point where the rotation of the code reel due to the bias of the spring is releasably restrained by the stopper and matters related thereto will be described. However, since these points are the same between the code reels 1a and 1b, the description is simplified. Only the code reel 1a will be described.

Under the state in which the cord is wound (FIG. 3), the reels 1a and 1b are positioned at the phase where the concave portions 7 and 8 face each other.
The engaging element 9a of the stopper 9 is fitted in the concave portions 7, 8.

When the reel 1a rotates in the code pulling-out direction (clockwise rotation in FIG. 3) by pulling out the code Ca, the disk 4 is rotated in the same direction through the member 1c. In this case, the concave portion 7, which faces the inclined portion 9b,
The shoulder at 8 slides over and passes through the ramp.

When the cord Ca is pulled out, the stopper 12 is displaced leftward in FIG. 3 by the peripheral surface of the projection 10 due to the clockwise rotation of the disk 4 accompanying the cord Ca, and the stopper 11b is displaced to the position of the stopper 12. As a result, the clockwise rotation of the disk 4 is prevented by the engagement of the contact piece 11b and the stopper 12, and only the reel 1a rotates clockwise as the cord is pulled out under sliding between the friction engagement member 1c and the disk 4. to continue.

When the cord is loosened while being pulled out, the stopper 13 is displaced by the bias of the spring 13 to a position where the stopper 12 engages the step 10 b of the projection 10 of the disk 4, and the reel 1 a and the left of the disk 4 are biased by the bias of the spring 3. The rotation is prevented, and the cord is maintained in the pulled-out state. In this state, the concave portion 7 is displaced with respect to the concave portion 8 and maintains a state in which the stopper 9 does not work.

In order to wind up the drawn cord, the cord is slightly pulled in the drawing direction. Then, the stopper 12 is disengaged from the step portion 10b, and the reel 1a is rotated counterclockwise with the disk 4 by the bias of the spring 3, and the cord is wound. At this time, as apparent from the above description, the stopper 9
In this state, the winding of the cord is performed continuously.

When the reel 1a returns to its original state, the recess 7 faces the engaging element 9a of the stopper 9, the recess 8 also faces the engaging element 9a, and the engaging element 9a fits into the recesses 7,8.

In the cord winding device according to the present invention, the cord reel, which is biased by a spring so as to rotate in the cord winding direction and is restrained so as to be releasably restrained from rotating by the spring by a stopper, in tandem. A conductive member that is energized by sliding contact between the winding end of the cord wound on one of the code reels and the winding end of the cord wound on the other of the code reels on the opposing surfaces of the code reels. Have.

According to this configuration, the code wound on the code winding device, that is, the code winding device can be divided into three types, such as pulling out one of the codes from the attached code reel and pulling out both codes. It can be used in embodiments.

Therefore, the present invention can considerably improve the usability of the automatic winding system described above at the beginning compared with the prior art.

[0028]

According to the present invention, there is provided an automatic winding type coil winding device in which a cord reel is rotated in a direction of winding a cord by the bias of a spring. There is an effect that can be improved.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of a cord winding device according to the present invention.

FIG. 2 shows a disassembled perspective view of the device of FIG.

FIG. 3 is a plan view of a disk and a spring stopper in the apparatus shown in FIG. 1;

4 is a vertical sectional view of the sliding contact type conductive type conductive system in the cord reel attached to the tandem of the apparatus of FIG.

FIG. 5 is a sectional view taken along line VV of FIG. 9 below.

FIG. 6 is a vertical sectional view taken along the line VI in FIG. 9 below.

FIG. 7 is a plan view showing the arrangement of terminals of the upper reel of the conductive system of the sliding contact type shown in FIGS. 4 to 6;

FIG. 8 is a plan view showing an arrangement of terminals of a lower reel of the conductive system together with a cord end connected to the terminals.

FIG. 9 is a plan view showing an arrangement of terminals of a lower reel 1a of the system below the terminals.

[Explanation of symbols]

 I Code take-up device 1a Code reel 1b Code reel 1c Friction engagement member 3 Code take-up spring 4 Disk 5 Plug 6 Outlet 7 Recessed portion 8 Recessed portion 9 Spring stopper with engaging member 9a Engagement member of the same stopper 10 Projection 10a Step of the same projection Part 10b Step of the same projection 11 Contact piece 12 Stopper Ca code Cb code

Claims (1)

[Claims] 1. A cord reel, which is biased by a spring so as to rotate in a cord winding direction and whose rotation by the spring is restrained so as to be releasably restrained by a stopper, is provided in tandem with the cord reel. Characterized in that a conductive member is provided on the opposing surface to electrically connect the winding end of the cord wound on one of the code reels to the winding end of the cord wound on the other of the code reels by sliding contact. Winding device.