JPH042948Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention is capable of automatically winding cables for communication, television, radio relay, etc. into a coil shape without twisting the cables while they are connected to equipment. ,
This relates to an automatic winding cable reel that can be pulled out.

Conventional technology In the past, cables connecting broadcast vehicle equipment and movable equipment outside the vehicle, such as movable antennas that can be raised and lowered, were usually delivered using a single take-up reel so that they could be stored as compactly as possible without taking up much space. Sometimes coiled on a reel.

Problems that the invention aims to solve: With conventional cable reels, when pulling out or winding up the cable, the cable must be separated from the device, or if the cable is left connected, a slip ring must be used, otherwise the cable will be twisted and the inside of the cable will be damaged. Otherwise, the screws will break. In other words, the cable is wound spirally on a take-up reel at the time of delivery, but the end of the cable remains connected to the device when it is pulled out or pulled out.
When winding or winding, the end of the cable cannot be rotated, so the twist becomes progressively tighter as the reel rotates and the number of windings increases. Either it must be rotatable or a connecting device that can rotate at the joint is required.

The present invention was developed in view of the above points, and its purpose is to provide an automatic winding cable reel that can pull out and wind up a cable without twisting it while connected to a device. It is in.

Means for Solving the Problems In the present invention, as shown in FIGS. 1 to 5, an immovable auxiliary reel 4 for winding is provided on one side of a rotating shaft 2 mounted on a machine frame 1. A main reel 7 is rotatably attached to a hollow shaft 5 which is rotatably supported on the other side of the rotating shaft 2. A threaded portion 9 is provided on the rotating shaft 2 between the main reel 7 and the sub-reel 4, a threaded ring 10 is screwed onto this, and projections 11, 11 provided on the ring are provided.
is attached to a stand leg 13 fitted to the hollow shaft 5 through long holes 12, 12 formed in the hollow shaft 5 between both reels 4, 7, and the main reel 7 and sub reel 7 are attached to the upper surface of the tip of the stand leg, respectively. Guide pulleys 17 and 18 and guide rolls 15 and 1 guide the rewinding of the intermediate portion of the cable 20 spirally wound around the reel 4 from the sub reel 4 to the main reel 7 or from the main reel 7 to the sub reel 4.
6 is attached, and a rotary table 19 having rollers 14, 14 that roll on the outer peripheral surfaces of both reels 4, 7 is provided on the lower surface, and a drive shaft with a manual and/or electric clutch 41 mounted on the machine frame 1. 23, the main reel 7, and the rotating shaft 2 through chain wheels 24, 25 and 26, 27, and chains 28, 29, respectively, and the intermediate transmission shaft 31.
The main reel 7 and the hollow shaft 5 are rotated at a rotation ratio of 2:1 through the chain wheels 32, 32 and the chain 34, and the cable 20 is pulled out from the main reel 7. The cable guide 38 screwed into the threaded portion 23a of the drive shaft 23 and the rotary table 19 are configured to be moved leftward and rightward as the cable is wound.

Operation One end of the cable 20 wound spirally around the immovable auxiliary reel 4 that does not rotate is connected via a connector to a device installed inside the relay vehicle or at a predetermined position, and the cable 20 wound spirally across the main reel 7
The other end is used by connecting to an elevating movable antenna outside the relay vehicle or to mobile relay equipment, and when the cable 20 is pulled out from the main reel 7, the connected equipment (e.g. elevating mast) Pulled out by a tensile force. At this time, the drive shaft 23 is separated from the motor 40 with a reduction gear by the clutch 41, and as the main reel 7 rotates, the chain wheels 26, 2
The drive shaft 23 is rotated through the chain 28 and the cable guide 38, which is threaded onto the threaded portion 23a of the drive shaft 23, is moved as the cable 20 is pulled out, guiding the cable 20 without slack and stably. drawn out. At this time, the rotating shaft 2 is rotated by the drive shaft 23 via the chain wheels 25, 27 and the chain 29, and the projection 11 of the threaded ring 10 screwed into the threaded portion 9 is bored in the axial direction of the hollow rotating shaft 5. Since the rotary table 19 is connected to the base leg 1 of the rotary table 19 through the elongated hole 12, the rotary table 19 is sequentially moved toward the main reel 7 side, and the rotary table 19 is connected to the chain wheels 32, 33 and the chain from the intermediate transmission shaft 31. Hollow shaft 5 through 34
is rotated one rotation for every two rotations of the main reel 7, so that the cable 20 spirally wound around the sub reel 4 passes through the guide rolls 15, 16 and the guide pulleys 17, 18, and unravels as the cable 20 rolls around the main reel 7. At the same time, the cable 20 itself, whose one end is fixed, is revolved by one rotation of the turntable 19 for two rotations of the main reel 7, and the cable 20 generated when winding the cable 20 is transferred to the main reel 7. The twist is eliminated and the cable 20 is wound onto the main reel 7 without any kinks, so the cable 20 is wound in the same state as the cable 20 is pulled out while rolling the main reel 7.
is brought out.

During winding, a switch (single-acting or interlocking with other equipment) rotates the motor 40 with a speed reducer, simultaneously activates the solenoid, engages the clutch 41, and rotates the drive shaft 23. By rotating the main reel 7 and gradually moving the cable guide 38 from one end of the main reel 7 that is far from the sub-reel 4 through the rotation of the main reel 7, the main reel 7 can be wound without twisting in the same state as rolling the main reel 7. As the cable 20 is wound up, the middle part of the cable 20 wound on the opposite side of the main reel 7 gradually unravels due to the rotation of the rotary table 19 in the opposite direction, and moves the guide rolls 16, 15 and the guide pulleys 18, 17. Then, the middle part of the cable 20 is rotated (revolving) and wound spirally from one side to the other side of the sub-reel 4, and even if the end of the cable 20 is still connected to the device, the cable 20 may become kinked. The cable 20 can be pulled out and wound up without any need for cable 20.

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

Figure 1 is a plan view showing the cable being wound and delivered. 1 is a machine frame, 2 is a rotating shaft horizontally suspended in the center of the machine frame 1, and rotation is not transmitted to one of them via a belling 3. An immovable auxiliary reel 4 for winding the cable is attached to ensure that the cable winds up smoothly. As shown in detail in FIG. 5, 5 is a hollow shaft rotatably covered with a belling 6 on the other side of the rotating shaft 2, and a sub-reel 4 is attached to the outside of the hollow shaft in the axial direction at a predetermined distance. A main reel 7 for winding a wide cable is rotatably mounted via a bearing 8.

A threaded portion 9 is formed on the rotating shaft 2 between the sub-reel 4 and the main reel 7, a threaded ring 10 is screwed onto the threaded portion, and a protrusion 1 protrudes above and below the threaded ring 10.
1 and 11 are attached to a pedestal 13 fitted to the hollow shaft 5 through long holes 12 and 12 formed along the axial direction of one end of the hollow shaft 5. The tip of this base leg 13 has rollers 14, 14 on the lower surface that span over the main and sub reels 7, 4 and roll on their respective body surfaces, and are wound spirally over the main and sub reels 7, 4. Guide rolls 15, 16 and guide pulleys 17, 1 for guiding and rotating the intermediate portion of the cable 20 from the sub reel 4 to the main reel 7 or from the main reel 7 to the sub reel 4.
A rotary table 19 with 8 is attached. 17′,
18' is the cable 20 from the guide pulleys 17 and 18.
This is a stopper installed on the side of the guide pulleys 17 and 18 to prevent them from coming off.

One end 21 of the cable 20 on the side of the sub-reel 4 is connected to the equipment directly or through a connector, and the cable is passed through the sub-reel 4 and wound spirally around the sub-reel 4 from the side end on the main reel 7 side, and is then placed on the rotating table. 1
Guide roll 15 on 9, guide pulleys 17, 18,
It is wound once around the side end of the main reel 7 on the sub-reel 4 side via the guide roll 16, and then passed through the main reel 7 and wound spirally around the main reel 7 from the other end of the main reel 7 before being delivered. The other end 22 of the cable 20 is provided with a vertically movable antenna or a connector for connecting to a mobile device.

23 is a drive shaft mounted on the side of the machine frame 1 parallel to the rotating shaft 2, and is driven and rotated by a motor 40 with a reduction gear via a clutch 41.
A clutch actuating solenoid 42 for turning the clutch 41 on and off is attached. Further, a handle 43 is attached to one end of this drive shaft 23 so that it can be rotated manually. In this case, the drive shaft 23 is separated from the motor 40 with a reduction gear by a clutch 41.

Chain wheels 24 and 25 attached to one side of the manual and/or electric drive shaft 23 and chain wheels 26 and 27 attached to the side ends of the main reel 7 and rotating shaft 2 are connected to chains 28 and 29, respectively. via the drive shaft 2
3, the intermediate transmission shaft 31 and the hollow shaft 5, which are transmitted by a transmission device 30 such as a chain wheel or chain, are connected to the main reel 7 via chain wheels 32, 33 and a chain 34.
and the hollow shaft 5 are rotated at a rotation ratio of 2:1, and as the cable 20 is pulled out from the main reel 7 and wound up, several screws are screwed onto a threaded portion 23a formed on the drive shaft 23. guide roll 3
The cable guide 38 having the cable guides 5, 36, and 37 and the rotary table 19 are moved leftward and rightward by the rotation of the screw portions 23a and 9, respectively. 39 is a weight attached to the end of the leg stand 13.

Effects of the invention As explained above, the present invention has two reels arranged side by side, an immovable sub-reel for winding the cable in a helical pattern and a rotating main reel, and a spiral winding between the main and sub-reels is provided. The middle of the cable wound in a shape is transferred from the sub reel to the main reel according to the pulling out of the cable from the main reel or the winding rotation.
Alternatively, we have taken technical measures to provide a guide pulley that guides rewinding from the main reel to the sub-reel, and a rotary table that moves to the left and right in the direction of the rotation axis while making one rotation for every two rotations of the main reel. Since the middle part of the cable is re-wound to the main and sub-reels while rotating (revolving) around the reel, there is no twisting of the cable being pulled out or wound up from the main reel, and the cable guide is also attached to the main cable. Since it moves left and right depending on the direction of rotation, the cable can be pulled out and wound up from the main cable accurately and easily, and the cable can be unwound by rolling the main reel without causing heavy winding or loosening of the cables. In the same way as when pulling out or winding up a cable, the cable can be quickly and smoothly pulled out or wound up without damaging the cable while both ends of the cable remain connected to the equipment. In addition, since the connection remains connected at all times, the device can be used with any cable length, and the cable does not get tangled or entangled with others. Furthermore, since the cable does not get twisted, it can be used without a connector, preventing deterioration of relay function due to the use of a connector, and is convenient for compact storage and withdrawal of cables for relaying, moving surveillance cameras, remote control, etc. be.

[Brief explanation of drawings]

Figure 1 is a plan view showing one embodiment of the present invention;
The figure is a front view with the cable removed, partially cut away, Figure 3 is a side view, Figure 4 is a sectional view showing the cable being pulled out, and Figure 5 is a fixed sub-reel, main reel and hollow rotating shaft. FIG. 3 is an explanatory cross-sectional view showing the arrangement of the rotary table and the drive system thereof. 1... Machine frame, 2... Rotating shaft, 4... Sub-reel,
5...Hollow shaft, 7...Main reel, 9...Threaded part,
10... Screw ring, 11... Projection, 12... Elongated hole, 13... Leg stand, 14... Roller, 15, 16...
...Guide roll, 17, 18...Guide pulley, 19
... Rotating table, 20 ... Cable, 23 ... Drive shaft, 23a ... Threaded part, 24, 25, 26, 2
7, 32, 33... chain wheel, 28, 29, 34...
Chain, 30... Transmission device, 31... Intermediate transmission shaft, 38... Cable guide.

Claims (1)

[Scope of utility model registration request] A fixed sub-reel 4 for winding is mounted on one side of a rotating shaft 2 mounted on a machine frame 1, and a hollow rotating shaft 5 rotatably supported on the outside of the rotating shaft 2 and a rotatable reel on the other side are mounted on the other side. A main reel 7 is provided, and the local protrusions 11, 11 of the threaded ring 10 screwed with the threaded part 9 provided on the rotating shaft 2 across both reels 4 and 7 are connected to the length of the hollow rotating shaft 5 in the axial direction. It is brought out through the holes 12, 12 and connected to the base leg 13 fitted to the hollow rotating shaft 5,
At the tips of the base legs, guide pulleys 17 and 18 are provided for rewinding and guiding the intermediate portions of the cables 20 wound spirally on the upper surface from the sub reel 4 to the main reel 7, or from the main reel 7 to the sub reel 4. Guide roll 1
5, 16 are attached, and has rollers 14, 14 on the lower surface that roll on the outer peripheral surfaces of both reels 4, 7.
9 is attached, and a manual and/or electric drive shaft 23 and an intermediate transmission shaft 31 are mounted on the lower front side of the machine frame.
The rotating shaft 2, the main reel 7, and the hollow rotating shaft 5 are individually rotated in the same direction through the chain wheel and chain, and the main reel 7 and the hollow rotating shaft 5 are rotated 2:1.
As the cable is pulled out from the main reel 7 and wound up, the rotary table 19 is rotated at a rotation ratio of Automatic winding cable reel that moves to the right.