JP2006127934A - Lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting system in which tension is not applied to a power supply cord, in which a cord reel to wind the power supply cord is unnecessary, and which can be down-sized. <P>SOLUTION: A fixture 2 is suspended by a wire 3 from the device body 1, the fixture 2 is made liftable by reeling out and winding up the wire 3 by a driving part 4, a pulley 6 is installed at the device body 1, a relay member 7 is installed in the middle of the wire 3 drawn out of the driving part so as to be placed inside of the device body 1, the fixture 2 is suspended via the pulley 6 by the wire 3 drawn out of the relay member 7 to the fixture 2 side, the power supply cord 8 of which the length between the relay member 7 and the fixture 2 is approximately the same as that of the wire 3 installed between the relay member 7 and the fixture 2 is fixed to the relay member 7 and wired to the fixture 2 side via the pulley 6, and a housing part 9 of the power supply cord 8 drawn out of the relay member 7 to the driving part 4 side is installed at the device body 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a lighting device that can raise and lower a lighting fixture and can be lit at an arbitrary position.

As a conventional raising / lowering mechanism of a lighting fixture, there exists a raising / lowering illumination pole apparatus shown in patent document 1, for example. In this case, it has a movable pulley that is arranged inside the pole and moves up and down, a fixed pulley fixed to the top of the pole, one end of the wire is fixed to the pole, and an intermediate part is wound around the movable pulley and the fixed pulley, The other end is fixed to the movable base. The cable (power cord) drawn from the ground into the pole is wired up to the upper part of the inner wall of the pole and fixed, and then the middle part is wound around a movable pulley and wired upward, and the fixed pulley After being wound around, it is electrically connected to the lighting fixture. According to this configuration, since the cable is pulled downward with a force exceeding the cable weight, when the maintenance work is performed with the movable base lowered, the cable is not detached from the pulley around which the cable is wound. You can concentrate on your work.
JP 2001-84829 A

  However, in the above conventional example, the cable is pulled downward with a force exceeding the weight of the cable, so that there is a problem that tension is applied and hindering the lifting. In addition, if the cable is not tensioned, the cable will loosen and come off the pulley, so that a cord reel for winding the cable is required separately from the wire reel for raising and lowering the instrument. In addition, when a curl cord is used for a cable in another example, the lifting distance is short, the cable is tensioned as it extends, and the cable storage space when contracted becomes large.

  Accordingly, an object of the present invention is to provide a lighting device that does not require tension on a power cord, does not require a cord reel for winding the power cord, and can be miniaturized.

  In order to solve the above-described problem, the lighting device according to claim 1 of the present invention is configured such that the fixture can be moved up and down by hanging the fixture from the device main body with a wire and drawing the wire out by the drive unit. In the illuminating device, a pulley is provided in the device main body, a relay member is provided in the middle of the wire exiting from the driving unit so as to be positioned inside the device main body, and the pulley is provided by the wire that is output from the relay member to the instrument side. The power supply cord having a length between the relay member and the device that is substantially the same as the wire provided between the relay member and the device is fixed to the relay member. The apparatus main body is provided with a storage portion for the power cord that is wired to the appliance side through the relay member and that protrudes from the relay member to the drive portion side.

  The lighting device according to claim 2 is the lighting device according to claim 1, wherein the power cord has a plurality of wire cores to be supplied to the instrument, and the power cord that is output from the relay member to the drive unit side is connected to the plurality of power cords. Divided into thin wires consisting of wire cores.

  The lighting device according to claim 3 is the lighting device according to claim 1, wherein the pulley and the other pulley are respectively arranged at positions of the device main body on both upper sides in the longitudinal direction of the device, and the relay member extends from the device to the device. Two wires are put out to the side, one wire hangs one end side of the instrument through the pulley, and the other one wire passes through the pulley and the other pulley provided on the other end side. Then suspend the other end of the instrument.

  According to the lighting device of the first aspect of the present invention, the pulley is provided in the apparatus main body, the relay member is provided in the middle of the wire coming out of the drive unit so as to be located inside the apparatus main body, and from the relay member to the instrument side. The equipment is suspended by the wire that has come out through the pulley, and the length of the power cord between the relay member and the equipment is approximately the same as that of the wire provided between the relay member and the equipment. Since the power supply cord storage portion that is wired to the appliance side through the relay member and protrudes from the relay member to the drive portion side is provided in the apparatus main body, the power cord between the relay member and the appliance bears tension by the wire of the same path . As a result, no tension is applied to the power cord, and lifting / lowering is not hindered. Further, since the wire and the power cord are approximately the same length between the relay member and the instrument, the power cord does not loosen and come off the pulley. For this reason, the cord reel which winds up a power cord becomes unnecessary. Further, since it is not necessary to use a curl cord or the like for the power cord, the lighting device can be miniaturized by reducing the storage space.

  In claim 2, since the power cord has a plurality of wire cores to be supplied to the appliance, and the power cord coming out from the relay member to the drive unit side is divided into thin wires composed of the plurality of wire cores, the storage portion is easily bent. Easy to store.

  In claim 3, the pulley and the other pulley are respectively arranged at the position of the apparatus main body on the upper side on both sides in the longitudinal direction of the device, and two wires are provided from the relay member to the device side, and one wire passes through the pulley. The other end side of the instrument is suspended via the pulley and another pulley provided on the other end side, so that one drive unit can be configured.

  Hereinafter, the illuminating device of the 1st Embodiment of this invention is demonstrated based on FIGS. FIG. 1 is a conceptual diagram of a lighting device according to a first embodiment of the present invention, FIG. 2 is an explanatory view of the operation thereof, and FIG. 3A is a sectional front view showing the whole lighting device of the first embodiment of the present invention. FIGS. 4A and 4B are bottom views, FIG. 4A is an enlarged view of FIG. 3A, and FIG. 4B is a cross-sectional side view thereof.

  As shown in FIG. 1 and FIG. 2, in this lighting device, the instrument 2 can be raised and lowered by hanging the instrument 2 with a wire 3 from the apparatus body 1 and feeding the wire 3 with a drive unit 4. It is said.

  As shown in FIGS. 3 and 4, the apparatus main body 1 is a long box body fixed to the anchor bolt 5 so that the lower end is located on the ceiling surface A. A pair of drive units 4 is provided. The drive unit 4 is composed of a wire reel or a motor, and one drive unit 4a is arranged so that the wire 3 can be fed out in the longitudinal direction of the apparatus body 1, and the other drive unit 4b is arranged so that the wire 3 can be drawn out in the vertical direction. ing. Also, a relay member 7 is provided in the middle of the apparatus main body 1 in the middle of the wire 3 coming out from the one drive unit 4a, and the tool 3 is connected via the pulley 6 with the wire 3 coming out from the relay member 7 to the device 2 side. Suspend one end of 2. In addition, what is necessary is just to provide the relay member 7 between the front-end | tips of the wire 3 which came out from the drive part 4a. The wire 3 coming out of the other drive unit 4b directly hangs the other end of the instrument 2. The height by which the tool 2 can be raised and lowered by the wire 3 is, for example, 1000 mm. Further, a power cord 8 for supplying power to the appliance 2 from the ceiling into the apparatus main body 1 is wired. The power cord 8 is formed by integrally forming a plurality of wire cores to be supplied to the instrument with an insulating material, the first cord 8a between the relay member 7 and the instrument, and the second cord extending from the relay member 7 to the drive unit 4a side. It consists of code 8b. The first cord 8 a of the power cord 8 has a length between the relay member 7 and the instrument 2 that is substantially the same as that of the wire 3 provided between the relay member 7 and the instrument 2. The first cord 8 a between the relay member 7 and the instrument 2 is fixed to the relay member 7 and wired to the instrument 2 side via the pulley 6. In this case, a pair of grooves 6a and 6b are formed on the outer periphery of the pulley 6, and the wire 3 and the first cord 8a are wound around the grooves, respectively. The second cord 8 b of the power cord 8 that protrudes from the relay member 7 toward the drive unit 4 is stored in a storage unit 9 formed in the apparatus main body 1. The accommodated second cord 8b may be divided into fine lines composed of a plurality of wire cores (FIG. 1). The relay member 7 is movably supported on a rail 10 provided in the longitudinal direction on the upper surface in the apparatus main body 1. The relay member 7 is provided with a stopper 11, which prevents the instrument 2 from being lifted and lowered more than necessary by contacting the member on the apparatus main body 1 side. The number of the apparatus main body 1 may be one, but a plurality of apparatus main bodies 1 may be connected in the longitudinal direction as shown in FIGS.

  The instrument 2 is stored in a space below the storage unit 9 in the apparatus main body 1. In this case, the main body 18 is provided with a socket 16 to which the lamp 15 is connected, a ballast 17 and the like, and a wire suspension body 20 which is attached to both ends of the main body 18 by the rotary shaft 19 and is suspended by the wire 3. . The instrument body 18 is extruded with aluminum or the like, and can be rotated 180 ° with respect to the instrument body 18 by a rotating shaft 19. The lower part of the instrument body 18 facing the lamp 3 is opened, and a louver 21 is attached at that position. The louver 21 is painted white, for example, and the side plate is mirror-finished. The wire suspension body 20 is formed so that the lower surfaces are flush with each other in a state in which the instrument body 18 is not rotating. Further, the wire 15 is wired from one wire suspension body 20 to the lamp 15 through the instrument body 18.

  Next, the operation of the lighting device will be described. As shown in FIGS. 2 and 4, in a state where the instrument 2 is housed in the apparatus main body 1, the relay member 7 moves to the drive unit 4 side, and the second cord of the power cord 8 that protrudes to the drive unit 4 side. 8 b is stored in the storage unit 9. When the appliance 2 is lowered, the relay member 7 moves toward the pulley 6 along the rail 10 by feeding the wire 3 from the drive unit 4. When the drive unit 4 is a motor, the drive unit 4 is electrically driven. When the drive unit 4 is a wire reel biased in the winding direction, the instrument 2 is manually lowered and the wire 3 is fed out. At this time, the first cord 8a of the power cord 8 between the relay member 7 and the instrument 2 is subjected to tension by the wire 3 in the same path. When the instrument 2 reaches the lowest position, the stopper 11 of the relay member 7 contacts the member on the apparatus main body 1 side to prevent the instrument 2 from falling.

  As described above, according to the present embodiment, the power cord 8 is not tensioned and does not hinder lifting. Further, since the wire 3 and the first cord 8a of the power cord 8 are approximately the same length between the relay member 7 and the instrument 2, the power cord 8 does not loosen and come off the pulley 6. For this reason, the cord reel which winds up the power cord 8 becomes unnecessary.

  FIG. 6 is a conceptual diagram of a lighting apparatus according to the second embodiment of the present invention. As shown in FIG. 6, in the first embodiment, a pulley 25 and another pulley 26 are respectively disposed at positions of the apparatus main body on the upper side on both sides in the longitudinal direction of the instrument 2. The pulley 25 corresponds to the pulley 6 of the first embodiment, but has three grooves on the outer periphery. Moreover, the drive part 4 is comprised only by one side. A relay member 7 is provided in the middle of the wire 3 coming out of the drive unit 4. Further, two wires 3a and 3b are extended from the relay member 7 to the device 2 side, one wire 3a hangs one end of the device 2 via the pulley 25, and the other wire 3b is the pulley 25. And the other end side of the instrument 2 is suspended through another pulley 26. Further, a power cord (not shown) is fixed to the relay member 7 and wired to the instrument 2 side via the pulley 25 as in the first embodiment. In this case, the wires 3a and 3b and the power cord are wound around the three grooves of the pulley 25, respectively. In the present embodiment, a single drive unit can be configured. Other structural effects are the same as those of the first embodiment.

  In the relay member 7, the wire 3a is fixed in a separated state, but may be fixed without being separated.

It is a conceptual diagram of the illuminating device of the 1st Embodiment of this invention. FIG. 5 is an operation explanatory diagram of the first embodiment of the present invention. (A) is the cross-sectional front view which shows the whole illuminating device of the 1st Embodiment of this invention, (b) is the bottom view. (A) is an enlarged view of FIG. 3 (a), (b) is the cross-sectional side view. It is a connection state figure of the illuminating device of the 1st Embodiment of this invention. It is a conceptual diagram of the illuminating device of the 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Apparatus main body 2 Instrument 3 Wire 4 Drive part 6 Pulley 7 Relay member 8 Power cord

Claims (3)

In the illuminating device in which the instrument can be lifted and lowered by hanging the instrument from the apparatus main body with a wire, and feeding and winding the wire with a drive unit.
A pulley is provided in the apparatus main body, a relay member is provided in the middle of the wire from the drive unit so as to be positioned inside the apparatus main body, and the wire is output from the relay member to the instrument side via the pulley. While suspending the appliance, the power cord having the same length as the wire provided between the relay member and the appliance is fixed to the relay member while the length between the relay member and the appliance is fixed to the relay member via the pulley. An illuminating device characterized in that the device main body is provided with a storage portion for the power cord which is wired to the appliance side and comes out from the relay member to the drive portion side.   The lighting device according to claim 1, wherein the power cord has a plurality of wire cores to be supplied to the appliance, and the power cord that comes out of the relay member toward the drive unit is divided into thin wires made of the plurality of wire cores.   The pulley and the other pulley are respectively disposed at the position of the apparatus main body on the upper side on both sides in the longitudinal direction of the device, and two wires are led out from the relay member to the device side, and one wire passes through the pulley. The lighting device according to claim 1, wherein one end side of the instrument is suspended and the other wire is suspended on the other end side of the instrument via the pulley and the other pulley provided on the other end side.

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