JP2003292253A - Cable wind-up device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cable wind-up device capable of preventing a breakage between stored cable and a plug, and preventing a breakage of the cable itself. <P>SOLUTION: The cable wind-up device 1 comprises a box-shaped case 2, a reel 3, a cable 4, and a stopper mechanism 6. The reel 3 is rotatably provided. The cable 4 is wound around the reel 3 so as to enable freely taking out/putting one end portion 4a from/in the case 2. The stopper mechanism 6 comprises a first gear wheel 31, a second gear wheel 32, a first protrusion 33, and a second protrusion 34. The first gear wheel 31 is integrally formed on the case 2. The second gear wheel 32 is rotatably supported by the reel 3, and meshed with the first gear wheel 31. The first protrusion 33 is projected from the reel 3, and the second protrusion 34 is projected from the second gear wheel 32. When the protrusions 33, 34 are contacted with each other, the reel 3 is regulated to rotate in a direction winding up the cable 4. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable winding device for winding and holding a cable for telecommunications.

[0002]

2. Description of the Related Art In recent years, with the development of electronic devices and information devices, LANs (Local Area Networks) have been constructed. This type of LAN is configured by connecting a plurality of computers to each other. A long communication cable or the like has been used in the LAN for connecting the above-mentioned information devices to each other. In order to easily carry the above-mentioned long communication cable when constructing the above-mentioned LAN, for example, the cable winding device 101 shown in FIGS. 10 to 12 is used.

A cable winding device 101 illustrated in FIGS. 10 to 12 has a box-shaped case 102, a cable 104 for electronic communication, a first reel 103 around which one end 104a of the cable 104 is wound, and Cable 10
The second reel 106 that winds the other end 104b of No. 4, the winding means that includes, for example, a spiral spring that biases the first reel 103 in the winding direction of the cable 104, and the stopper means.

Both ends 104a, 104 of the cable 104
Plugs 123a and 123b capable of being combined with the above-described electronic device plugs and the like are attached to b, respectively. The first reel 103 is housed in the case 102 so as to be rotatable around its axis. First reel 10
No. 3 winds the one end 104a of the cable 104 with the plug 123a positioned outside the case 102.

The second reel 106 is the first reel 10.
3, and is housed in the case 102 so as to be rotatable around its axis. Second reel 106
Wraps the other end 104b of the cable 104 with the plug 123b located outside the case 102.

The cable 104 has a first end 104a which can be freely taken in and out of the case 102.
And the other end 104b is wound on the second reel 106 in a state where the amount of protrusion to the outside of the case 102 is constant. In the case 102, the cable 104 includes the one end portion 104 a wound around the first reel 103 and the second reel 104 a.
The other end 104b wound around the reel 106 is continuous without contact.

The stopper means is provided on one end portion 104a of the cable 104 when one plug 123a connected to the one end portion 104a of the cable 104 is pulled out of the case 102 against the biasing force of the winding means. Case 10
2 Keep the amount of protrusion to the outside constant.

The cable winding device 10 having the above-mentioned structure
In No. 1, when one end 104a of the cable 104 is pulled outward, the stopper means keeps the amount of protrusion of the one end 104a constant. In this state, it is used for the above-mentioned LAN or the like.

The above-described cable winding device 1
01, when being carried, releases the stopper means and the first reel 103 rotates in the direction in which the one end portion 104a of the cable 104 is wound by the biasing force of the winding means. One end 104a of the cable 104 is the first reel 1
The cable winding device 101 is wound around 03 and housed in the case 102, so that the cable winding device 101 can be easily carried.

[0010]

In the above-described conventional cable winding device 101, when the cable 104 is wound, the plug 123a attached to the one end 104a comes into contact with the case 102. Therefore, when the cable 104 is wound up, the plug 123a attached to the one end portion 104a may vigorously collide with the case 102 due to the urging force of the winding means. For this reason, in the cable winding device 101 illustrated in FIGS. 10 to 12, when the cable 104 is repeatedly taken in and out (sending and winding), the plug 123a repeatedly collides with the case 102, and the plug 123a. The cable 104 may be disconnected.

Further, when the cable 104 is housed in the case 102, the winding means biases the first reel 103 in the winding direction of the cable 104, and the plug 123a described above contacts the outer surface of the case 102. is doing. Therefore, when the cable 104 is housed in the case 102, the tension in the extending direction is always maintained.
Will act on. Therefore, in the above-described conventional cable winding device 101, the cable 104 may be stretched. In the worst case, the cable 104 itself may be broken.

Therefore, an object of the present invention is to provide a cable winding device capable of preventing the cable to be housed and the plug connected to the cable from being electrically disconnected and also preventing the cable itself from being disconnected. is there.

[0013]

In order to solve the above problems and achieve the object, a cable winding device of the present invention according to claim 1 is provided with a case and a case which is housed in the case and rotates about an axis. In a cable winding device including a freely provided reel and a cable for telecommunications in which a plug is attached to one end and the one end is wound on the reel, one end of the cable is the reel. Is rotated so that it can be inserted into and removed from the case over a projecting position that comes out of the case and a housing position that is housed outside the case, and one end of the cable is positioned at the housing position. In this case, a stopper mechanism is provided for restricting the reel from further rotating in a direction in which the one end is housed and keeping the tip of the one end outside the case. It is.

According to a second aspect of the present invention, there is provided a cable winding device according to the first aspect, wherein the stopper mechanism is fixed to the case and is coaxial with the axis. A first gear, a second gear rotatably supported on the reel and meshing with the first gear and rotating in one direction when the reel rotates in a direction to accommodate the one end; Two
First protrusion that is convex toward the gear and the second gear that is convex toward the reel from the second gear and is in contact with the first protrusion at the storage position so that the second gear moves in one direction. And a second protrusion for restricting rotation.

According to a third aspect of the present invention, there is provided a cable winding device according to the second aspect, wherein the number of rotations of the reel when the cable is displaced between the projecting position and the housing position. , The number of teeth of the second gear is greater than the product of the number of teeth of the first gear.

According to a fourth aspect of the present invention, there is provided the cable winding device according to any one of the first to third aspects, wherein the stopper mechanism is housed in the reel. It is characterized by being done.

According to the cable winding device of the present invention as set forth in claim 1, the stopper mechanism restricts rotation of the reel in the accommodation position in the direction of winding one end thereof. Further, the stopper mechanism keeps the tip of one end of the cable outside the case at the housed position. Therefore, it is possible to prevent the plug from colliding with the case when winding the cable. Further, at the storage position, since one end of the cable is exposed outside the case, the plug does not come into contact with the case. Therefore, the tension in the extending direction does not act on the cable at the storage position.

According to the cable winding device of the present invention described in claim 2, since the first gear is fixed to the case, when the cable is displaced between the projecting position and the housing position, The gear rotates about the first gear (revolves). Further, since the second gear is rotatably supported by the reel, it rotates (spins) when the cable is taken in and out, that is, the reel rotates. Thus, the second gear revolves around the first gear while revolving around its axis.

The first projection and the second projection of the stopper mechanism come into contact with each other at the storage position to prevent the second gear from rotating in one direction. Therefore, at the storage position, the stopper mechanism reliably restricts the reel from rotating in the direction in which the one end is wound. Therefore, it is possible to reliably prevent the plug and the case from colliding when the cable is wound.

According to the cable winding device of the present invention as defined in claim 3, the number of rotations of the reel and the number of teeth of the first gear when the cable is displaced between the projecting position and the housing position. The number of teeth of the second gear is greater than the product of Therefore, when the cable is displaced from the protruding position to the housing position,
The rotation of the second gear does not rotate once. Therefore, when the reel rotates and the second gear revolves around the first gear while rotating on its own axis, the first protrusion and the second protrusion do not come into contact with each other except at the accommodation position.

According to the cable winding device of the present invention described in claim 4, since the stopper mechanism is housed in the reel, it is possible to reduce the size.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION A cable winding device according to an embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 2, a cable winding device 1 according to an embodiment of the present invention includes a case 2, a reel 3,
A cable 4 for telecommunication, a spiral spring 5 as a rewinding means, and a stopper mechanism 6 are provided.

As shown in FIGS. 1 to 3, the case 2 is divided into a lower case 10 and an upper case 11 which are connected to each other. The lower case 10 includes a substantially flat bottom wall 10a and a plurality of peripheral walls 10b connected to the peripheral edge of the bottom wall 10a. The upper case 11 includes a ceiling wall 11a facing the bottom wall 10a with a space therebetween,
A plurality of peripheral walls 11b connected to the peripheral edge of the ceiling wall 11a,
Is equipped with.

The lower case 10 and the upper case 11 are connected to each other at their edges separated from the bottom wall 10a and the ceiling wall 11a of the peripheral walls 10b and 11b. When the lower case 10 and the upper case 11 are connected to each other, the peripheral wall 10
b and 11b are continuous with each other. When the lower case 10 and the upper case 11 are connected to each other, the lower case 10 and the upper case 11 have a flat box shape and accommodate the reel 3, the cable 4, the spiral spring 5, and the stopper mechanism 6 therein.

The case 2 has a central shaft 12. The central shaft 12 is formed in a columnar shape, and has an outer diameter that is substantially constant along the axis P. The central shaft 12 is
It is provided in the center of both the bottom wall 10a and the ceiling wall 11a. The axis P of the central shaft 12 extends along the direction in which the bottom wall 10a and the ceiling wall 11a face each other. The central shaft 12 may be integrally formed with at least one of the bottom wall 10a and the ceiling wall 11a.
It may be integrally formed with both 1a and divided into a plurality of, for example, two.

Further, the case 2 has a pair of openings 13
(Shown in FIG. 4 and the like). The opening 13 is
The inside and outside of the case 2 communicate with each other through the peripheral walls 10b and 11b. In the illustrated example, the opening 13 includes the peripheral walls 10b, 11b facing each other among the plurality of peripheral walls 10b, 11b.
11b.

The reel 3 comprises a first reel member 7 and a second reel member 8. The first reel member 7 is
The disc portion 14 and the tubular portion 15 are integrally provided. The disc portion 14 has a through hole 14a formed substantially at the center thereof through which the central shaft 12 can pass. The tubular portion 15 is formed in a cylindrical shape and stands upright from the disc portion 14. The tubular portion 15 is arranged coaxially with the disc portion 14. The tubular portion 15 is arranged substantially at the center between the through hole 14 a and the outer edge of the disc portion 14.
The disk portion 14, that is, the first reel member 7 is provided with a bearing 16 described later.
Are arranged coaxially with the central shaft 12.

The second reel member 8 integrally includes a disc portion 17 and a tubular portion 18. The disk portion 17 has a through hole 17a through which the central shaft 12 can be inserted, at approximately the center thereof. The disc portion 17 is fixed to the tubular portion 15 of the reel 3. The tubular portion 18 is formed in a cylindrical shape having an outer diameter smaller than the inner diameter of the tubular portion 15, and stands upright from the disc portion 17. The tubular portion 18 is arranged coaxially with the disc portion 17.
The tubular portion 18 is arranged near the through hole 17a from the approximate center between the through hole 17a and the outer edge of the disc portion 17. The disk portion 17, that is, the second reel member 8 is arranged coaxially with the central shaft 12 by a bearing 19 described later.

First reel member 7 and second reel member 8
Means that the disk portions 14 and 17 are coaxial with each other and the tubular portion 1
The disc parts 17 are superposed on the 5 and connected to each other. The reel members 7 and 8 connected to each other are the first reel member 7
The disk portion 14 of the through hole 14a faces the bottom wall 10a, and
It is accommodated in the case 2 with the central shaft 12 passing through the inside of 17a. Bearings 16 and 19 are provided between the inner surfaces of the through holes 14 a and 17 a and the outer peripheral surface of the central shaft 12.

The bearings 16 and 19 allow the first reel member 7 and the second reel member 8 or the reel 3 to rotate with respect to the central shaft 12 or the case 2. Therefore, the reel 3 is housed in the case 2 in a state of being rotatable around the axis P. As the bearings 16 and 19, conventionally known rolling bearings and sliding bearings can be used. Thus, the reel members 7 and 8 are rotatable integrally with each other.

The first reel member 7 is shown in FIGS.
And as shown in FIG. 9, a pair of cable guide walls 20, 2
0 and a cable passage hole 21. The cable guide walls 20, 20 are parallel to each other and stand upright from the disc portion 14. The cable guide walls 20, 20 are provided from the tubular portion 15 of the first reel member 7 to the vicinity of the through hole 14a. The cable 4 can be passed between the pair of cable guide walls 20, 20. The cable passage hole 21 penetrates the tubular portion 15 of the first reel member 7 and communicates with the pair of cable guide walls 20, 20.

Further, the second reel member 8 is provided with a pair of cable passage holes 22 and 23, as shown in FIGS. The cable passage hole 22 penetrates the disc portion 17. The cable passage hole 22 is provided inside the tubular portion 18. The cable through hole 23 penetrates the tubular portion 18 of the second reel member 8. Cable through hole 21,
Each of the cables 22 and 23 can pass the cable 4 inside.

As shown in FIGS. 2 and 3, the cable 4 includes a pair of parallel core wires 24 and a covering portion 25 for covering the pair of core wires 24, and the core wires 24 are electrically shielded. No parallel cable (Unshielded Twi
sted Pair: also called UTP).

The cable 4 has one end 4a and the other end 4
It is continuous without contact over b. As shown in FIGS. 1 to 4, 8, and 9, the tip 40 of the one end 4a and the tip of the other end 4b of the cable 4 are respectively plug 2
6a and 26b are attached. Plugs 26a, 2
Each of 6b can be connected to a plug, a connector, or the like of various electronic devices such as a personal computer (also referred to as a portable computer) that is conventionally known and is used in the above-described LAN.

The cable 4 has one end 4a wound around the first reel member 7 and the other end 4b wound around the second reel member 8. The cable 4 is provided in the cable passage hole 21, between the cable guide walls 20 and 20, and in the cable passage hole 2
One end portion 4a wound on the first reel member 7 and the other end portion 4b wound on the second reel member 8 are continuous without contacting each other through the insides of 2 and 23. Further, the cable 4 is housed in the case 2 with the plugs 26 a and 26 b exposed to the outside of the case 2.

The other end 4b is in a state in which, for example, several tens of centimeters are located outside the case 2 up to the plug 26b. The other end 4b has a constant amount of protrusion to the outside of the case 2. That is, the other end portion 4b includes a portion wound around the second reel member 8 and a portion protruding outside the case 2.

The other end 4b is fixed to the tubular portion 18 at the end of the second reel member 8 which is wound around the second reel member 8 and which is close to the inner edge thereof. In the illustrated example, the end near the inner edge of the second reel member 8 is fixed to the inner surface of the cable passage hole 23. The other end portion 4b has an end near the outer edge of the second reel member 8 at a portion wound on the second reel member 8,
It is fixed to the case 2. In the illustrated example, the end near the outer edge of the second reel member 8 is fixed to the inner surface of the opening 13. With the above-described configuration, the other end portion 4b is prevented from being pulled out to the reel 3 side and the outside of the case 2 at the portion wound around the second reel member 8.

Further, the one end portion 4a is wound around the first reel member 7 of the reel 3 and the first reel member 7 rotates, so that the accommodation position shown in FIG. 2 and the protruding position shown in FIG. The case 2 can be freely taken in and out.
That is, the cable 4 is displaced between the accommodation position and the protruding position described above.

At the storage position shown in FIG. 2, most of the one end portion 4a of the cable 4 is wound around the first reel member 7 and stored in the case 2. The tip 40 of the one end 4a of the cable 4 is exposed to the outside of the case 2, and the plug 26a is spaced from the outer surface of the case 2. Also, in the storage position,
The stopper mechanism 6 prevents the first reel member 7 from rotating in the direction in which the cable 4 is wound.

At the protruding position shown in FIG. 3, most of the one end 4a of the cable 4 is outside the case 2. Cable 4
A portion of the one end portion 4 a of the one end portion close to the other end portion 4 b is wound around the first reel member 7 and accommodated in the case 2. further,
At the protruding position, the first reel member 7 is restricted from rotating in the direction in which the cable 4 is sent out.

The spiral spring 5 is provided between the disk portion 14 of the reel 3 and the bottom wall 10a. The spiral spring 5 is
The reel 3 is biased in a direction in which the one end 4a is wound. The cable winding device 1 also includes stopper means (not shown). This stopper means is the reel 3
Alternatively, it is locked such that it is locked to the case 2 or the like, and the amount of protrusion of the one end portion 4a protruding from the case 2 is kept constant. Further, the stopper means releases the above-mentioned locked state by pulling the one end portion 4a further outward while keeping the above-mentioned protruding amount constant.

The stopper mechanism 6 includes a first gear 31, a second gear 32, a first protrusion 33, and a second protrusion 34. The first gear 31 is formed integrally with the central shaft 12 and arranged coaxially with the axis P. For this reason,
The first gear 31 is arranged coaxially with the first reel member 7 and the second reel member 8, that is, the reel 3, and is fixed to the case 2. Further, the first gear 31 includes the disk portion 14 of the first reel member 7 and the second reel member 8
It is arranged between the disc part 17 and the disc part 17.

The second gear 32 is arranged between the disc portion 14 of the first reel member 7 and the disc portion 17 of the second reel member 8. The second gear 32 meshes with the first gear 31. The second gear 32 has an arrow A1 in FIG.
Is supported by the disc portion 17 of the second reel member 8 in a rotatable state in both the one direction indicated by and the other direction indicated by arrow A2 in FIG.

The first protrusion 33 is formed so as to project from the disc portion 17 of the second reel member 8, that is, the reel 3 toward the second gear 32. As shown in FIG. 7, the first protrusion 33 includes a vertical surface 33a extending in the vertical direction, an inclined surface 33b inclined in both the vertical direction and the horizontal direction, and the like.

The second projection 34 is formed so as to project from the second gear 32 toward the disk portion 17 of the second reel member 8, that is, the reel 3. As shown in FIG. 6, the second protrusion 34 includes a vertical surface 34a extending in the vertical direction, an inclined surface 34b inclined in both the vertical direction and the horizontal direction, and the like.

As shown in FIG. 5, the first projection 33 and the second projection 34 have the vertical planes 33a,
34a contact each other. At this time, the second protrusion 34
Are arranged on the outer peripheral side of the second gear 32 with respect to the first protrusion 33. When the first protrusion 33 and the second protrusion 34 contact each other, the rotation of the second gear 32 in the winding direction of the cable 4 (arrow A1) is restricted.

Further, the rotation speed of the reel 3 when the cable 4 is displaced between the accommodation position and the protruding position is R,
When the number of teeth of the first gear 31 is n and the number of teeth of the second gear 32 is N, the following relationships are established. R x
n <N Therefore, when the cable 4 is displaced between the accommodation position and the projecting position, the second gear 32 does not make one rotation of its rotation. Therefore, from the storage position, the reel 3
That is, when the second gear 32 rotates, the second protrusion 34 does not come into contact with the first protrusion 33 until the protruding position.

Further, the second gear 32 revolves around the first gear 31 when the reel 3 rotates, and
It rotates (spins) with respect to the second reel member 8. Further, the first gear 31 and the second gear 32 are connected to the disk portions 14, 1
7 and the first protrusion 33 is provided from the disc portion 17 to the second portion.
The second gear is formed to be convex toward the gear 32 of
The protrusion 34 is formed to be convex from the second gear 32 toward the disc portion 17. Therefore, the stopper mechanism 6 is housed in the reel 3 by being arranged between the disk portions 14 and 17 of the reel 3.

The cable winding device 1 having the above-mentioned structure
The cable 4 is wound around the reel members 7 and 8 in such a state that the one end portion 4a can be freely put in and taken out from the case 2 and the other end portion 4b has a constant protrusion amount to the outside of the case 2. That is, the amount of protrusion of the plug 26a to the outside of the case 2 can be changed, and the amount of protrusion of the plug 26b to the outside of the case 2 is constant.

At the storage position, the vertical plane 33a of the first projection 33 and the vertical plane 34a of the second projection 34 contact each other, and the second gear is wound in the winding direction of the cable 4 (arrow A1). The rotation of 32 is restricted. Also,
The tip 40 of one end 4a of the cable 4 projects outside the case 2, and the plug 26a is spaced from the outer surface of the case 2.

When the one end portion 4a is pulled out from the housing position to the outside of the case 2, the reel 3 rotates along the arrow B2 in FIG.
Since it is integrally formed with the second gear 2, the second gear 32 rotates along the arrow A2 in FIG. Then, as shown in FIG. 8, the vertical plane 34a of the second protrusion 34 is
The vertical surface 33a of 3 gradually separates.

Further, when the one end 4a is pulled out of the case 2, the reel 3 rotates along the arrow B2 in FIG. 8 and the first gear 31 is formed integrally with the central shaft 12 of the case 2. Therefore, the second gear 32 rotates along the arrow A2 in FIG. Then, as shown in FIG.
The vertical surface 34a of the second protrusion 34 is further separated from the vertical surface 33a of the first protrusion 33.

Thereafter, the stopper means keeps the amount of protrusion of the one end 4a outside the case 2 constant. And plug 2
6a and 26b are connected to various electronic devices and used for the above-mentioned LAN or the like.

It should be noted that the reel members 7 and 8 are integrally formed in association with the one end 4a being pulled out of the case 2.
And rotates along arrow B2 in FIG. Then, the second
As shown in FIG. 3, the other end portion 4b wound around the reel member 8 gradually moves toward the outer peripheral side by the centrifugal force when the reel members 7 and 8 rotate. That is, the other end 4b wound around the second reel member 8 is located inside the case 2 and bulges outside the second reel member 8 without being pulled out to the first reel member 7 side.

Then, when the plugs 26a, 26b are detached from the electronic equipment and carried, the lock of the stopper means is released. Then, the urging force of the spiral spring 5 causes the reel members 7 and 8 to rotate in a direction in which the one end 4a is wound into the case 2. Due to the rotation of the second reel member 8, the other end portions 4b come into close contact with each other and are wound around the second reel member 8 as shown in FIG.

Further, the reel 3 rotates along the arrow B1 in FIG. 9 from the state where the vertical surface 34a of the second projection 34 shown in FIG. 9 is separated from the vertical surface 33a of the first projection 33.
The second reel member 8 rotates along the arrow B1 to
The gear 32 rotates in the direction of arrow A1, and the vertical plane 34a of the second projection 34 approaches the vertical plane 33a of the first projection 33 as shown in FIG.

Further, when winding the one end 4a of the cable 4, the second reel member 8 rotates from the state shown in FIG. 8 along the arrow B1. Then, the second gear 32 rotates along the arrow A1, and the vertical surface 34a of the second projection 34 contacts the vertical surface 33a of the first projection 33 as shown in FIG. Displace to position. In this way, the one end portion 4a is housed in the case 2, and the cable winding device 1 can be easily carried.

According to this embodiment, the stopper mechanism 6 is
At the storage position, the reel 3 is restricted from rotating in the direction in which the one end 4a is wound. Further, in the stopper mechanism 6, the tip end 40 of the one end portion 4a of the cable 4 is in the case 2 at the accommodation position.
Keep out of the way. Therefore, it is possible to prevent the plug 26a and the case 2 from colliding with each other when the cable 4 is wound up. Therefore, it is possible to prevent the plug 26a and the cable 4 from being electrically disconnected.

At the storage position, the tip 40 of the one end 4a of the cable 4 is exposed outside the case 2, so that the plug 2
6a does not contact the case 2. Therefore, in the storage position,
The tension in the extending direction does not act on the cable 4. Therefore, it is possible to prevent the cable 4 from extending and also to prevent the cable 4 itself from being electrically disconnected.

When the cable 4 is taken in and out, that is, when the reel 3 rotates, the second gear 32 becomes the first gear 3
Revolve around 1 while rotating on its axis. The first protrusion 33 and the second protrusion 34 of the stopper mechanism 6 come into contact with each other at the storage position, and regulate the rotation of the second gear 32 in one direction (arrow A1). Therefore, at the storage position, the stopper mechanism 6 reliably restricts the reel 3 from rotating in the direction in which the one end 4a is wound. Therefore, it is possible to reliably prevent the plug 26a and the case 2 from colliding with each other when the cable 4 is wound up. Therefore, the plug 26a and the cable 4
It can be surely prevented that and are electrically disconnected.

The cable 4 extends between the projecting position and the housing position.
Rotation speed R of the reel 3 when displacing the first gear 31
The number N of teeth of the second gear 32 is larger than the product of the number n of teeth of the second gear 32. Therefore, when the cable 4 is displaced from the projecting position to the housing position, the rotation of the second gear 32 does not rotate once. For this reason, when the reel 3 rotates and the second gear 32 rotates around the first gear 31 while rotating on its own axis, the first protrusion 33 and the second protrusion 34 are separated from each other except at the storage position. Do not touch each other. Therefore, the cable 4 can be reliably put in and taken out from the case 2 over the accommodation position and the protruding position.

The stopper mechanism 6 is housed in the reel 3. Therefore, it is possible to prevent disconnection between the plug 26a and the cable 4 and disconnection of the cable 4 itself, and it is possible to reduce the size of the cable winding device 1.

[0063]

As described above, according to the present invention as set forth in claim 1, the stopper mechanism restricts the reel from rotating in the winding direction of the one end at the accommodation position. further,
The stopper mechanism keeps the tip of one end of the cable outside the case at the housed position. Therefore, it is possible to prevent the plug from colliding with the case when winding the cable. Therefore, it is possible to prevent the plug and the cable from being electrically disconnected.

At the storage position, the tip of one end of the cable is exposed outside the case, so the plug does not come into contact with the case. Therefore, the tension in the extending direction does not act on the cable at the storage position. Therefore, it is possible to prevent the cable from extending and also prevent the cable itself from being electrically disconnected.

According to the second aspect of the present invention, when the cable is taken in and out, that is, when the reel rotates, the second gear revolves around the first gear while rotating on its axis. The first protrusion and the second protrusion come into contact with each other at the storage position, and the stopper mechanism regulates rotation of the second gear in one direction. Therefore, at the storage position, the stopper mechanism reliably restricts the reel from rotating in the direction in which the one end is wound. Therefore, it is possible to reliably prevent the plug and the case from colliding when the cable is wound. Therefore,
It is possible to reliably prevent electrical disconnection between the plug and the cable.

According to the third aspect of the present invention, the product of the number of rotations of the reel and the number of teeth of the first gear when the cable is displaced between the projecting position and the housing position The number of teeth on the 2nd gear is large. Therefore, when the cable is displaced from the projecting position to the housing position, the rotation of the second gear does not rotate once. Therefore, when the reel rotates and the second gear revolves around the first gear while rotating on its own axis, the first protrusion and the second protrusion do not come into contact with each other except at the storage position. Therefore, in addition to the fact that the disconnection between the plug and the cable and the disconnection of the cable itself can be prevented, the cable can be surely taken in and out of the case between the accommodation position and the protruding position.

According to the fourth aspect of the present invention, the stopper mechanism is housed in the reel. Therefore, it is possible to prevent disconnection between the plug and the cable and disconnection of the cable itself, and it is possible to reduce the size of the cable winding device.

[Brief description of drawings]

FIG. 1 is a perspective view showing a cable winding device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a cross-sectional view showing a state in which a cable of the cable winding device of the same embodiment is displaced to a protruding position.

4 is a cross-sectional view taken along the line IV-IV in FIG.

5 is a cross-sectional view taken along the line VV in FIG.

6A is a plan view of the second protrusion shown in FIG. 5. FIG. 6B is a sectional view taken along line VIB-VIB in FIG. (C) is VIC-VI in FIG. 6 (a)
It is sectional drawing which followed the C line.

FIG. 7A is a plan view of the first protrusion shown in FIG. 7B is a sectional view taken along line VIIB-VIIB in FIG. (C) is VIIC in FIG. 7 (a)
FIG. 7 is a cross-sectional view taken along the line VIIC.

8 is a cross-sectional view showing a state where one end of the cable is pulled out of the case from the state shown in FIG.

9 is a cross-sectional view showing a state in which one end of the cable is further pulled out of the case from the state shown in FIG.

FIG. 10 is a perspective view showing a conventional cable winding device.

11 is a cross-sectional view taken along line XI-XI in FIG.

12 is a cross-sectional view showing a state where the cable of the cable winding device shown in FIG. 10 is pulled out.

[Explanation of symbols]

1 Cable winding device 2 cases 3 reel 4 cables 4a One end 6 Stopper mechanism 26a plug 31 first gear 32 Second gear 33 First protrusion 34 Second protrusion 40 tip R reel speed n Number of teeth of the first gear N Number of teeth of second gear A1 one direction

Claims (4)

[Claims] 1. A case, a reel housed in the case and rotatably provided around an axis; a cable for telecommunication in which a plug is attached to one end and the one end is wound on the reel. In the cable winding device, the one end portion of the cable is pulled in and out of the case between a projecting position that goes out of the case and a housing position that is housed outside the case when the reel rotates. It is provided freely, and when the one end of the cable is positioned at the storage position, the reel is restricted from rotating in a direction to further store the one end, and the tip of the one end is outside the case. A cable winding device characterized by having a stopper mechanism for keeping it in the state of being exposed. 2. The stopper mechanism includes a first gear fixed to the case and arranged coaxially with the axis, and rotatably supported by the reel and meshing with the first gear. Has a second gear that rotates in one direction when it rotates in a direction in which the one end is housed, a first protrusion that is convex from the reel toward the second gear, and a second protrusion that extends from the second gear toward the reel. And a second protrusion that is convex and contacts the first protrusion at the accommodation position to restrict further rotation of the second gear in one direction. The described cable winding device. 3. The number of teeth of the second gear is calculated from the product of the number of rotations of the reel when the cable is displaced between the protruding position and the housing position and the number of teeth of the first gear. The cable winding device according to claim 2, wherein the cable winding device has a large number of items. 4. The cable winding device according to any one of claims 1 to 3, wherein the stopper mechanism is housed in the reel.