JP2012227984A - Cable device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cable device which installs a cable in an orderly manner and prevents the occurrence of unnecessary work even when the necessary cable length is not determined such as in the cable connection work between boards.SOLUTION: A cable device includes: a drum 3 rotatably provided at a support base 1; a cable 4 having a center part wound around an outer peripheral part of the drum and both end parts led out to the exterior; and a stored-energy spring 5 disposed between the drum and the support base and constantly biased so as to rotate the cable relative to the drum in the winding direction; stoppers 7 blocking the cable from being wound by the spring when the cable is led out from the support base; and engagement means 6 provided at the support base and used for fixing the support base to an external structure.

Description

  The present invention relates to a cable device having a length adjusting function that can be preferably used for connecting cables between boards, for example.

  In conventional cable laying, it is often the case that the clear cable length cannot be determined unless it is at the time of local construction, and if the cable is prepared with the expected length, the length of the cable will be insufficient or too long during the construction. Since the problem of loosening occurred, it was often done in-kind. As an automatic cable take-up device that can adjust the cable length, the cable extended to the required length can be temporarily fixed at a predetermined position by the combination of the gripping member and the control member, and the control member is pushed and gripped. Some have made it possible to rewind the cable by moving the member (see, for example, Patent Document 1).

Utility Model Registration No. 3126849 (first page, FIGS. 2 to 6)

  Conventional techniques such as the above-described automatic cable winding device can be expected to have various effects such as easy operation and very convenient storage. However, there has been a problem that application becomes difficult when the structure becomes somewhat complicated and the cable used is thick. On the other hand, in the case of conventional cable laying work that is performed in combination with the actual product, support installation work has occurred on site when urgent support is required while laying external cables inside metal housings, etc. There was also a problem that wasted time was generated. In addition, the cable of the test equipment that is used many times at the test site has a problem that the required cable length differs depending on the test object, which disturbs the step.

  The present invention has been made in view of the actual state of the prior art as described above. For example, even when the required cable length is not clear, such as cable connection work between panels, the cable can be laid out in an orderly manner. It aims at providing the cable apparatus which can also suppress generation | occurrence | production of work.

  The cable device according to the present invention includes a drum rotatably provided on a support base, a cable having a central portion wound around an outer peripheral portion of the drum and both ends pulled out, and the drum and the support base. An accumulating spring that is interposed between the accumulator spring and is constantly urged to rotate the cable in the winding direction with respect to the drum, and the cable is wound by the spring when the cable is pulled out from the support base. And a stopper provided on the support base for fixing the support base to an external structure.

  In this invention, the cable wound around the drum is pulled out as much as necessary, and the cable is laid, and the unnecessary excess cable is held in a state wound around the drum, so the necessary cable length is clear. Even if this is not the case, the cables can be laid out neatly. In addition, since the support base can be fixed to a nearby structure such as a housing using the locking means, it is possible to suppress the occurrence of extra work such as configuring the support structure.

It is a perspective view which shows the cable apparatus which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the internal structure of the cable apparatus shown in FIG. It is a block diagram which shows typically the usage example of the cable apparatus shown in FIG. It is a block diagram which shows typically the other usage example of the cable apparatus shown in FIG.

Embodiment 1 FIG.
1 is a perspective view showing a cable device according to Embodiment 1 of the present invention, and FIG. 2 is a cross-sectional view showing an internal configuration of the cable device shown in FIG. In the figure, a cable device 10 is provided with a support base 1 composed of a bottomed cylindrical case, a support shaft 2 fixed and erected at the center of the bottom of the support base 1, and a support shaft 2 rotatably provided on the support shaft 2. The drum 3 and a substantially central portion of the entire length are fixed to the outer peripheral surface of the drum 3 and wound around the outer peripheral portion of the drum 3, and left and right openings 1 a provided at both ends symmetrically on the outer peripheral portion of the support base 1 The cable 4 is drawn outward from the cable 3, and one end is fixed to the inner peripheral surface of the drum 3 and the other end is fixed to the support shaft 2, so that the cable 4 is always rotated around the drum 3. There is provided a spring-like energy storage spring 5 that is urged, and a locking means 6 that is fixed to a detachable upper lid that constitutes the support base 1 and is made of a magnet for fixing the support base 1 to an external structure. Yes.

  In addition to the above, on the inner side of the opening 1a, the cable 4 is pulled out from the support base 1 against the biasing force of the energy storage spring 5, and the cable 4 is stored in the energy storage spring 5 when the pulling force is stopped. A lock mechanism that prevents the cable 4 from being wound, a stopper 7 (not shown in detail) that also serves as a lock release means that can release the restraint of the cable 4 by the lock mechanism, and connections provided at both ends of the cable 4 A terminal 4a is provided.

  The stopper 7 is a method of restraining the outer peripheral insulation coating constituting the cable 4, but is not particularly limited to this, and for example, a ratchet gear that rotates together with the drum 3 is provided, and the ratchet gear There may be a thing provided with the nail | claw engaged so that rotation to arbitrary one directions can be selected, or a simple latch mechanism.

  The cable 4 is shown as a single wire, but it may be a single-phase or three-phase multi-core cable generally used for power supply, for example. Moreover, although the length of the cable 4 is not specifically limited, for example, the maximum length is 5 m, 10 m, 15 m,... Correspondence becomes possible. The same applies to the current capacity. The type of the cable 4 is not limited to the power source, but may be a communication cable such as a coaxial cable, an optical cable, a LAN cable, a signal transmission cable for various sensors, a microphone cable, or the like.

  Although the magnet is illustrated as the locking means 6, in the case where the magnet does not work or the weight of the cable device 10 is heavy, the fixing hole for screwing in advance to the support base 1 in addition to the magnet is provided. It is preferable to provide a plurality of or hooks (not shown). Further, although the support base 1 is a case-like one, it may be a frame-like one in which the inside can be seen.

  Next, the operation of the first embodiment configured as described above will be described with reference to the usage examples shown in FIGS. FIG. 3 shows a case where the cable is laid between boards. When laying the cable, the cable device 10 is temporarily placed in the approximate center of the planned installation path of the cable connecting the two panels 11 and 12. Next, both ends of the cable 4 are pulled out simultaneously. At this time, it is pulled out longer than necessary so that the laying work can be easily performed. Then, one end of the cable 4 is connected to a terminal block (not shown) of one panel 11 and the other end is connected to a terminal block 12 a of the other panel 12.

  Next, the connected cables are bundled as necessary and fixed in a predetermined path, while the stopper 7 is operated to eliminate the slack of the cables 4 and the extra length of the cables 4 is removed by the force of the accumulator spring 5. If there is a fixed portion such as a casing using an iron plate at the position of the cable device 10 at that time, the cable device 10 is fixed to the portion by the locking means 6 made of a magnet. When the magnet does not work or when the magnet attracting strength is insufficient, a screw hole is opened and the cable device 10 is fixed with a tapping screw or the like. As described above, in the first embodiment, even when the length of the cable is unknown until immediately before the construction, the cable can be laid without causing slack.

  As another use example, as shown in FIG. 4, a generator 22 driven by a prime mover 21 such as a diesel engine and a switchboard (not shown) are connected, or in a pit provided in the vicinity of the generator 22. The case where it uses for a connection with an apparatus can be mentioned. The connection method is the same as in the example of FIG. The power generation equipment as described above is often housed in a metal package. In particular, when it is necessary to lay a cable quickly, the cable device 10 is fixed to the metal package and used. Is fixed and stable, and no load is applied to the terminal block (not shown), so that it can be used reliably and safely.

  In addition to the above, for test equipment cables that are used many times at the test site, etc., the required cable length differs depending on the test target, so cables with a considerable margin in length are used. There are many cases in which the cables that exceed are placed on the floor so as to wrap around and get in the way of the feet, but such a situation can be avoided by using the cable device 10 of the first embodiment.

  As described above, according to the first embodiment of the present invention, the cable 4 wound around the drum is pulled out from the drum as much as necessary, and the cable is laid, and unnecessary excess cables are wound around the drum. The supporting base 1 can be fixed to a structure such as a nearby casing by using the locking means 6. For this reason, even when the length is unknown at the time of cable arrangement, problems such as insufficient length and wasteful disposal of the extra cable length can be eliminated, and the cable can be laid without slack.

  Further, if there is a fixing portion for the magnetic body, it is possible to fix without work, so that it is possible to suppress the occurrence of extra work such as configuring a support structure. In addition, since there is no extra length or slack in the cable, it is possible to align the wiring ducts and pits. There is no need for unnecessary work such as redoing the construction due to insufficient cable length during construction. Moreover, it can be reused and is easy to collect and transport. In addition, since unnecessary cables are not discarded, the waste of resources can be reduced.

  DESCRIPTION OF SYMBOLS 10 Cable apparatus, 1 Support base | substrate (case), 1a Opening part, 2 Support shaft, 3 Drum, 4 Cable, 4a Connection terminal, 5 Energy storage spring, 6 Locking means, 7 Stopper, 11, 12 Boards, 12a Terminal block , 21 prime mover, 22 generator.

Claims (4)

  A drum rotatably provided on the support base, a cable having a central portion wound around the outer peripheral portion of the drum and both ends pulled out outward, and the drum interposed between the drum and the support base. An accumulator spring that is constantly biased to rotate in the winding direction of the cable, and a stopper that prevents the cable from being wound by the spring when the cable is pulled out of the support base; A cable device comprising a locking means provided on the support base for fixing the support base to an external structure.   The stopper includes a lock mechanism that prevents the cable from being taken up by the spring when the cable is pulled out from the support base, and a lock release unit that can release the restriction of the cable by the lock mechanism. The cable device according to claim 1.   The cable device according to claim 1 or 2, wherein the locking means uses a magnet.   The cable device according to any one of claims 1 to 3, wherein the support base includes a drum and a case that accommodates the cable.

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