JPH023484Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a reel device for making cords such as power cords and earphone cords stretchable.

Conventional Structure and Problems Generally, a reel device is provided with a speed reduction mechanism because if the cords are stored at a high speed, the cords will be lost. FIG. 1 shows a reel device equipped with a conventional speed reduction mechanism. In Fig. 1, 1 is a cabinet, 2 is an earphone, 3 is a cord for the earphone, 4 is a guide rib for the cord,
5 is a knob, 6 is a latch, 7 is a return spring for returning the knob 5 and latch 6 to their original positions, 8 is a take-up reel, and 9 is a stop tab.

Regarding the reel device configured as above,
The operation will be explained below. First, in FIG. 1, when no force is applied to the knob 5, a stop claw 9 provided on the take-up reel 8 is engaged with the latch 6, and the take-up reel 8 is prevented from rotating in the rotation direction A. . Next, when the earphone 2 is pulled out from the cabinet 1, the earphone cord 3 wound around the take-up reel 8 is also pulled out while the take-up reel 8 is rotated in the direction B. At this time, the spiral spring built into the take-up reel 8 stores energy to rotate the take-up reel 8 in the direction A.If you stop pulling out the earphone 2 after it has been pulled out to a certain extent, The take-up reel 8 rotates in the direction A to some extent, the stop claw 9 hits the latch 6, the take-up reel 8 no longer rotates in the A direction, and the earphone 2 is pulled out from the cabinet 1. Next, when force is applied to the knob 5 in the direction of arrow C, the knob 5 pushes up the latch 6 in the same direction.
The stop claw 9 is no longer in contact with the earphone, the take-up reel 8 rotates in the direction A, the earphone cord 3 is wound onto the take-up reel 8, and the earphone 2 is stored in the cabinet 1. At this time, the earphone cord 3 is brought into contact with the guide rib 4, and the take-up reel 8 is caused by the frictional force between the guide rib 4 and the earphone cord 3.
to slow down the rotation of.

However, in the above conventional configuration, the take-up reel 8 is decelerated only by the frictional force between the guide rib 4 and the earphone cord 3, so it is difficult to obtain a very large frictional force, and the cord is wound at a moderate speed. It had drawbacks that could not be overcome. In addition, unless the dimensions between the guide rib 4 and the cabinet 1 and the diameter of the earphone cord 3 are made very strict, the earphone 2 may be retracted in a very short time or may not be retracted completely. It had a point.

Purpose of the invention This invention solves the above-mentioned conventional problems.
To provide a reel device capable of completely winding up a cord at a certain speed and temporarily stopping the winding cord at an appropriate position.

Structure of the Invention In order to achieve the above object, the reel device of the present invention has a latch that approaches and separates from a stopper pawl coaxial with the take-up reel, or a knob that externally operates the latch. However, a sliding rib is provided so as to reduce the distance between the guide rib and the guide rib when the guide rib is not engaged. According to this configuration, as the knob slides, the bending angle of the cord that moves between the guide rib and the sliding rib when the latch and the stopper claw are not engaged is greater than when the latch and the stopper claw are engaged. The frictional force applied to the cord is greater when the cord is disengaged than when it is engaged, and the rotational speed of the take-up reel to which the cord is attached can be reliably reduced. It is possible.

DESCRIPTION OF EMBODIMENTS FIG. 3 shows the structure of a reel device in an embodiment of the present invention. In Figure 3, 10
is a cabinet, 11 is an earphone, 12 is a cord for the earphone, 13 is a guide rib for the cord,
14 is a knob, 15 is a latch, 16 is a return spring for returning the knob 14 and latch 15 to their original positions, 17 is a take-up reel, and 18 is a stop claw, which are the same as the conventional example. It is something. Further, FIGS. 4a and 4b are views of the essential parts of FIG. 3 from the back side, and the knob 14 is provided with a sliding rib 19, the tip of which abuts against the cord 12.

The operation of the reel device of this embodiment configured as described above will be described below. First, when no force is applied to knob 14 in the direction of arrow C,
As shown in the solid line in FIG. 4A, the distance between the guide rib 13 and the sliding rib 19 is large to some extent, and the bending angle of the earphone cord 12 is small. Therefore, the frictional force between the earphone cord 12, the guide rib 13, and the sliding rib 19 is not so large, and the earphone 11 is smoothly stored until the stop tab 18 hits the latch 15. Next, knob 14
When a force is applied in the direction of arrow C, as shown in FIG. The distance between
The bending angle of the earphone cord 12 is large. Therefore, the earphone cord 12 and the guide rib 13
Even if the frictional force between the earphone cord 12 of the spiral spring attached to the take-up reel 17 and the sliding rib 19 increases to some extent, and the energy required to store the earphone cord 12 of the spiral spring attached to the take-up reel 17 in the cabinet 10 increases to some extent, the earphone 11 will not move due to the above frictional force. It is smoothly and completely stored in the cabinet 10.

As described above, according to this embodiment, the sliding rib 19 is provided on the slidable knob, and the earphone cord 1
Since it was configured to change the frictional force with 2,
The rotation speed of the take-up reel 17 can be changed freely. Furthermore, since the structure is configured such that the frictional force between the earphone cord 12 and the earphone cord 12 can be changed, when the knob 14 is pressed in the direction of arrow C, the earphone 11 is completely connected to the cabinet 1.
Even if it is not stored at 0, if you stop applying force to the knob 14 in the direction of arrow C at that time, when the sliding rib 19 is pushed back by the return spring 16,
The frictional force between the earphone cord 12, the guide rib 13, and the sliding rib 19 is reduced, and the earphone 11 can be completely housed in the cabinet 10.

In the embodiment, the sliding rib 19 is provided on the knob 14, but it goes without saying that this sliding rib may be provided on the latch 15 in other ways.

Effects of the Invention As described above, the reel device of the present invention includes a take-up reel that is rotatably supported within a cabinet, a cord that is wound around the take-up reel and whose tip is led out from the cabinet, and a a spring member that accumulates rotational energy in a direction of winding the cord around the take-up reel when the cord is pulled out;
a stopper claw provided coaxially with the take-up reel; a latch movably disposed within the cabinet so as to be able to come into contact with and separate from the stopper claw;
a knob connected to the latch so that the latch can be moved from the outside of the cabinet; a return spring biasing the latch so that the latch and the stopper pawl are always engaged; A guide rib provided in the cabinet to guide the cord led out from the take-up reel; The knob or the latch is provided on the latch so as to reduce the gap between the knob and the latch, and the cord is provided with a sliding rib that changes the bending angle of the cord, and the cord moves between the guide rib and the sliding rib. The cord is characterized in that the frictional force applied to the cord is larger when the latch and the stopper claw are not engaged than when the latch and the stopper claw are engaged. The take-up reel can be temporarily stopped at a certain position without constantly applying force to the latch, and the frictional force applied to the cord moving between the guide rib and sliding rib is greatly reduced when the latch is not engaged. can be done. Therefore, the cord that moves between the guide rib and the sliding rib can be used even if it is relatively weak in strength, and the cord can be completely wound up at a certain speed, and the friction force applied to the cord can be used. This has the advantage that the winding speed of the cord onto the take-up reel can be reliably reduced.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway plan view showing a conventional reel device, FIGS. 2 a and b are partially enlarged views for explaining the operation of the device, and FIG. 3 is a reel device according to an embodiment of the present invention. The partially cutaway plan view and FIGS. 4a and 4b are partially enlarged views for explaining the operation of the device. 10...cabinet, 11...earphone,
12... Earphone cord, 13... Guide rib, 14... Knob, 15... Latch, 16...
Return spring, 17... Take-up reel, 18... Stop claw, 19... Sliding rib.

Claims (1)

[Scope of utility model registration request] A take-up reel rotatably supported within a cabinet, a cord wound around the take-up reel and whose tip is led out from the cabinet, and a cord that is wound around the take-up reel when the cord is pulled out. a spring member that stores rotational energy in the rotating direction; a stopper claw provided coaxially with the take-up reel; and a latch movably disposed within the cabinet so as to be able to come into contact with and separate from the stopper claw. , a knob connected to the latch so that the latch can be moved from the outside of the cabinet, and a return spring biasing the latch so that the latch and the stopper pawl are always engaged. A guide rib is provided in the cabinet and guides the cord led out from the take-up reel, and the guide rib is provided when the latch and the stopper claw are not engaged, compared to when the latch and the stopper claw are engaged. The knob is provided on the latch so as to reduce the gap between the knob and the rib, and includes a sliding rib that changes the bending angle of the cord, and moves between the guide rib and the sliding rib. A reel device characterized in that the frictional force applied to the cord is larger when the latch and the stopper claw are not engaged than when the latch and the stopper claw are engaged.