JP2008311115A - Elevator and rise and fall type lighting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator and a rise and fall type lighting device in which error wiring of a power supply line to a terminal board of elevating operation is made difficult. <P>SOLUTION: The elevator 10 is equipped with a main body 11 in which a drive device to wind and rewind a wire rope 13 is installed in an installation part A, an elevating part 14 which is hung through the wire rope 13 and rises and descends, and a terminal board for elevating operation 15 to which a power supply line 20 consisting of a rising wire 20a, a descending wire 20b, and a common wire 20c for supplying power to the drive device can be connected and which has a rising terminal 15a connected to the rising wire of the power supply line, a descending terminal 15b connected to the descending wire, and a common terminal 15c connected to the common wire, and in which the common terminal is separated from the rising terminal and the descending terminal and installed on a main body. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an elevating device and an elevating illumination device for elevating a lighting fixture or the like.

  In recent years, in various stores, offices, multipurpose halls, etc., lighting fixtures have been installed on a high ceiling with an atrium to illuminate from high places in order to achieve better lighting effects. In the case of a lighting device installed on a high ceiling, a lifting type lighting device using a lifting device for lowering a lighting fixture from the ceiling to the floor from the standpoint of maintenance such as lamp replacement is often used.

For example, as shown in Patent Document 1, this lifting illumination device is provided with a lifting operation terminal block on a lifting device installed on a high ceiling or the like, and is connected to a floor-side operation panel by a power line. . And the raising / lowering part is raised / lowered by performing switching operation of raising / lowering on the operation panel and winding up / rewinding the wire rope of the lifting / lowering device, thereby performing maintenance of the lighting fixture.
JP 2000-16767 A

  However, the elevating device shown in Patent Document 1 is configured so that the operation panel and the elevating operation terminal block are connected to the ascending line in order to wind up and rewind the wire rope by reversing the drive device composed of an electric motor. Three power lines consisting of a descending line and a common line are used, and a three-pole terminal block is also used for the lifting operation terminal block.

  This tripolar terminal block is composed of an ascending terminal to which the rising line of the power supply line is connected, a descending terminal to which the descending line is connected, and a common terminal to which the common line is connected. Each terminal is SL (screwless) It is composed of terminals, and in appearance, small holes are close to each other and arranged at equal intervals. For this reason, it is difficult to determine which power line is connected to which SL terminal, and characters and paints such as “black”, “red”, and “white” that match the color of the three power lines are applied near the terminal. To prevent miswiring.

  However, at the construction site, the characters are small and difficult to interpret. In particular, the wiring work in the vicinity of a high ceiling that is high and dark is an extremely difficult operation and there is a risk of erroneous wiring.

  Furthermore, if the power line connection type is wrongly wired to the SL terminal of the lifting operation terminal block, for example, if the rising line and the descending line are mistakenly wired, the rotation of the electric motor is reversed and the lifting operation is performed. Reverse. Further, when the ascending line and the common line or the descending line and the common line are switched and wired, a voltage is applied between the ascending terminal and the descending terminal where no voltage is applied in the normal wiring state, which may cause a failure of the apparatus.

  For this reason, in this type of liftable illumination device or the like, how to prevent erroneous wiring at a construction site is an important issue.

  An object of the present invention is to provide an elevating device and an elevating illumination device that make it difficult to miswire a power supply line with respect to an elevating operation terminal block.

  The invention of the lifting device according to claim 1 includes: a main body on which a driving device for winding and unwinding the wire rope is installed on the installation portion; a lifting portion that is suspended and lifted via the wire rope; A power line consisting of a rising line, a falling line and a common line for supplying power to the drive device is connectable, and a rising terminal to which the rising line of the power line is connected, a falling terminal to which the falling line is connected, and a common line And a lifting / lowering terminal block provided on the main body by separating the common terminal from the ascending terminal and the descending terminal.

  According to the present invention, the common terminal is separated from the ascending terminal and the descending terminal, and the ascending / descending operation terminal block provided on the main body is used to replace the ascending line and the common line or the descending line and the common line of the power supply line and miswiring Therefore, it is possible to prevent a failure of the apparatus.

  In the present invention, the means for separating the common terminal of the lifting operation terminal block from the rising terminal and the lowering terminal and providing it in the main body includes, for example, a terminal block constituting the common terminal and a terminal block constituting the rising terminal and the lowering terminal. It is allowed to be provided separately from each other by arranging them separately and arranging them adjacent to each other.

  Even if the distance to be separated is a distance that is connected adjacently as described above, for example, it is separated into each face of a hexahedron cube, for example, each terminal block on both side faces of the main body. May be provided separately. In short, it may be separated at an optimum distance in consideration of the relationship with the distance that can be wired in the power supply line.

  The lifting device may be an automatic stop type or an arbitrary height setting type. Although it is preferable to construct a lifting type lighting device by attaching a lighting fixture to the lifting unit, a fixture other than the lighting fixture, such as a mirror ball for decoration, is attached to the lifting unit. Also good.

  According to a second aspect of the present invention, in the lifting device according to the first aspect, the lifting operation terminal block includes a common terminal formed of a one-pole terminal block, and a rising terminal and a lowering terminal formed of a two-pole terminal block. It is characterized by comprising.

  According to the present invention, the lifting / lowering operation terminal block includes the common terminal as a one-pole terminal block, and the rising terminal and the lowering terminal as a two-pole terminal block. The appearance of each terminal block provided with can be made different, and the function of identifying both terminals can be achieved from the outside.

  A 1-pole terminal block that constitutes a common terminal, and a 2-pole terminal block that constitutes a rising terminal and a descending terminal may be composed of only one or two-pole terminals. It may be provided. The terminal structure may be an SL terminal or a screw-type terminal, or a combination of an SL terminal and a screw-type terminal. Is done.

  The lifting / lowering illumination device according to a third aspect includes the lifting / lowering device according to the first or second aspect; and a lighting fixture attached to the lifting / lowering unit.

  According to the invention of claim 1, the common terminal is separated from the ascending terminal and the descending terminal, and the ascending / descending operation terminal block provided in the main body is used to replace the ascending line and the descending line with the descending line and the common line. Since wiring is reduced, it is possible to provide an elevating device capable of preventing a failure of the device.

  According to the invention of claim 2, the terminal block for raising / lowering operation is configured such that the common terminal is constituted by a one-pole type terminal block, and the rising terminal and the lowering terminal are constituted by a two-pole type terminal block. The appearance of each terminal block provided with a lowering terminal can be made different, and the function of distinguishing both terminals from the outside is also achieved. Thus, it is difficult to replace the common line or the descending line with the common line, and it is possible to provide an elevating device that can prevent a failure of the device.

  According to invention of Claim 3, the raising / lowering type illuminating device which can prevent failure of an apparatus can be provided.

  Hereinafter, embodiments of the lifting device and the lifting illumination device of the present invention will be described.

  Reference numeral 10 denotes an automatic stop type electric lifting device constituting the lifting device of the present invention, a main body 11, a driving device 12 incorporated in the main body, a wire rope 13 wound and rewound by the driving device, and the main body via the wire rope. The lifting / lowering unit 14 is moved up and down and the lifting operation terminal block 15 is provided on one side of the main body.

  The main body 11 is constituted by a box-shaped case member 11a having an open lower surface and a cover member 11b for closing a lower surface open portion of the case member.

  A storage portion 11c is formed on the front side of the box-shaped case member 11a, and a lifting operation terminal block 15 described later is stored in the storage portion. The storage portion is provided with a lid 11d that can be opened and closed. By opening the lid, predetermined electrical wiring can be performed from the outside to the lifting operation terminal block 15.

  The cover member 11b is formed in a plate shape and constitutes the lower surface portion of the main body case. The main body 11 composed of the case member 11a and the cover member 11b is made of a metal such as iron, stainless steel or aluminum, or a synthetic resin.

  A box-shaped case member 11a is formed with a fitting portion 16 having a cylindrical shape with an open bottom surface, into which the elevating part 14 is fitted, at the center of the inside. A pair of electrical contacts 16a on the main body side connected to the power supply line are provided on the inner bottom surface of the fitting portion 16 so as to be exposed. Further, although not shown, a fall prevention mechanism for locking the elevating part 14, an automatic stop device, and the like are installed on the inner surface of the fitting part 16.

  In the case member 11a, a DC electric motor 12a, a wire drum 12b, and a reel 12c that constitute the driving device 12 of the present invention are installed on the side portion adjacent to the fitting portion 16 so that the electric motor 12a The wire rope 13 is wound and rewound through the drum 12b and the reel 12c by reverse rotation.

  The wire rope 13 is composed of a stainless steel wire, and connects the elevating part 14 to the lower end part. The elevating part 14 is configured to have a slightly flat cylindrical shape with a lower open surface so as to fit and fit the cylindrical fitting part 16, and a pair of elevating side electrical contacts 14a are exposed on the upper surface. When the elevating part 14 is fitted to the fitting part 16, it is configured so that it can be electrically connected to the main body side electrical contact 16a.

  When the elevating part 14 is fitted to the fitting part 16, it is locked by a fall prevention mechanism and automatically stopped by an automatic stop device. An appliance to be moved up and down, in this embodiment, a lighting fixture 30 is attached to the lower surface of the elevating unit 14, and power is supplied to the lamp 30a of the lighting fixture by connecting the raising and lowering electrical contact 14a and the main body side electrical contact 16a. Is done. Similarly to the main body case 11, the elevating part 14 is also made of metal such as iron, stainless steel, aluminum, or synthetic resin.

  The cover member 11b is detached from the case member 11a by attaching four attachment screws 11e to the corners of the four corners of the case member 11a, closing the open portion of the lower surface of the case member 11a, and removing the attachment screw 11e. Open the open part of the lower surface so that parts such as motors inside the device can be repaired and inspected.

  In FIG. 1, 17 is a level, and in FIG. 2 (b), 20 is a power line comprising a rising line 20a, a falling line 20b and a common line 20c for supplying power to the electric motor 12a. It is composed of a three-core F cable in which black is used, the descending line 20b is red, and the common line 20c is white.

  The lifting operation terminal block 15 includes a rising terminal 15a to which the rising line 20a of the power line 20 is connected, a falling terminal 15b to which the falling line 20b is connected, and a common terminal 15c to which the common line 20c is connected. The lower terminal 15b is constituted by a two-pole terminal block 15d, and the common terminal 15c is constituted by a one-pole terminal block 15e.

  Further, the two-pole terminal block 15d and the one-pole terminal block 15e are arranged so that the terminal blocks are adjacent to and separated from the terminal block installation plate 15f provided upright in the storage portion 11c of the main body 11. Install separately.

  The ascending terminal 15a and the descending terminal 15b provided on the bipolar terminal block 15d are composed of SL terminals and are arranged so that the terminal holes are adjacent and face the front side. Further, a ground terminal 15g is provided adjacent to the rising terminal 15a. In the figure, reference numerals 21a, 21b, and 21g denote feed terminals corresponding to the rising terminal 15a, the lowering terminal 15b, and the ground terminal 15g, respectively, and are configured as terminal blocks having a three-pole function in appearance.

  The common terminal 15c provided in the unipolar terminal block 15e is composed of an SL terminal, and is arranged so that the terminal hole faces the front side. Reference numeral 21c denotes a feed terminal corresponding to the common terminal 15c. The 1-pole terminal block 15e is composed of a terminal block having the same 3-pole function as the 2-pole terminal block 15d in order to share parts, and the remaining 2-pole terminals are shielded from synthetic resin. The plate 22 is configured not to be used as a closing terminal. On the surface of the shielding plate, “use prohibited” characters are printed and displayed.

  In the figure, reference numerals 23a, 23b, and 23c denote display labels affixed to the upper portions of the terminal block bases 15d and 15e corresponding to the black color of the rising line 20a, the red color of the falling line 20b, and the white color of the common line 20c. Then, the black display label 23a is attached to the rising terminal 15a, the red display label 23b is attached to the upper part of the lowering terminal 15b, and the white display label 23c is attached to the upper part of the common terminal 15c.

  Further, corresponding to the black color of the rising line 20a, the red color of the falling line 20b, and the white color of the common line 20c in the power supply line, black, red, and white are respectively provided around the periphery of the rising terminal 15a, the falling terminal 15b, and the common terminal 15c. Paint is applied (not shown).

  In the figure, reference numeral 25 denotes an appliance operation terminal block, and an appliance side power line (not shown) connected to the floor side operation panel is connected to the SL terminal of the appliance operation terminal block 25. The other end side of the SL terminal is connected to a main body side electrical contact 16a provided in the fitting portion 16 in the main body 11, and power is supplied and stopped from the operation panel through the instrument operation terminal block 25. Thus, the lighting fixture 30 connected to the elevating unit 14 is turned on / off.

  In the figure, reference numeral 26 denotes a mounting arm that constitutes the support member of the present invention, which is formed of a substantially U-shaped shape made of metal, such as iron, stainless steel, or aluminum, or a synthetic resin, like the main body 11, and constitutes an arm. Both end portions of the case member 11a are supported on both side surfaces of the case member 11a by two bolts, and can be rotated with respect to the main body 11 around the bolts. In the horizontal portion of the U-shaped mounting arm 26, two through-holes 26a for fixing the arm to a ceiling or the like with support bolts or the like are formed.

  A lighting fixture 30 is attached to the lifting / lowering part 14 of the lifting / lowering device 10 configured as described above to constitute a lifting / lowering lighting device 40.

  That is, the luminaire 30 includes a lamp 30a made of a discharge lamp, a socket 30b in which the lamp is mounted, and a reflector 30c that contains the lamp. Both terminals of the socket 30b to which the lamp is mounted are connected to the lift side electrical contact 14a of the lift unit 14 via the lead wire 14b.

  Next, the construction procedure for installing the elevating illumination device 40 configured as described above on a high ceiling with a colonnade such as a multipurpose hall will be described.

  First, an operator climbs up to the vicinity of the ceiling A, which is an installation part where a lighting fixture is installed, with a crane or the like, and lifts the lifting device 10 to attach the support hole 26a of the mounting arm 26 to the top board base material or slab in advance. The main body 11 is fixed to the ceiling A by inserting the two support bolts and screwing the nut.

  Next, the control panel on the floor side, the lifting operation terminal block 15 and the appliance operation terminal block 25 of the lifting device 10 are wired. First, the lid 11 d of the main body 11 is opened to expose the terminal blocks 15 and 25, and the power line 20 made of a three-core F cable is connected to each terminal of the lifting operation terminal block 15.

  That is, the white common line 20c is inserted into the common terminal 15c provided in the unipolar terminal block 15e, and wiring on the unipolar terminal block 15e side is first completed.

  Next, moving to the bipolar terminal block 15d, the black rising line 20a is inserted and connected to the rising terminal 15a, the red falling line 20b is inserted into the falling terminal 15b, and finally a ground wire (not shown) is connected. Insert and connect to the ground terminal 15g.

  At this time, the operator has the one-pole terminal block 15e and the two-pole terminal block 15d provided separately, and the one-pole terminal block 15e has a use-prohibited shielding plate 22 and a terminal. Since the portion is closed, it is clearly different from the 2-pole terminal block 15d in appearance, so that it is clear without making a mistake between the 1-pole terminal block 15e and the 2-pole terminal block 15d. Can be distinguished.

  At the same time, the terminal portion to be connected can be clearly identified and confirmed again by the display label provided corresponding to the color of each cord of the power line 20 and the color of the applied paint, resulting in incorrect wiring. Accurate wiring work can be performed without any problems.

  Next, the appliance side power supply line is inserted and connected to the appliance operation terminal block 25, the lid body 11d is closed, the wiring work is completed, and the vehicle is lowered to the floor. Each power line is connected to the operation panel after completion of wiring to the terminal block.

  Next, the operation panel is operated to turn on the power to the lifting device 10, the electric motor 12a is driven, the wire rope 13 is rewound and fed out, and the lifting unit 14 is lowered to the floor surface.

  After predetermined electrical wiring is performed on the lowered elevator 14 and the lighting fixture 30, both are connected and attached with screws or the like, and the lighting fixture 30 and the elevator 14 are integrated. The electric motor 12a is driven in reverse, the wire rope 13 is wound up, the lighting fixture 20 is raised together with the elevating part 14, and the elevating part 14 is accommodated in the fitting part 16 of the main body 11. At this time, the elevating unit 14 automatically stops at a predetermined position fitted by the automatic stop device.

  Thereby, the raising / lowering side electrical contact 14a of the raising / lowering part 14 and the main body side electrical contact 16a of the fitting part 16 are connected. Further, the elevating part 14 is reliably locked in the fitting part 16 by the lock mechanism, and the lighting fixture 20 is securely fixed and supported while being installed on the ceiling 40.

  As a result, power is supplied to the lamp 30a of the lighting fixture 30 through the appliance-side power line wired in advance to the appliance operation terminal block 25 of the lifting device 10, and by operating the floor-side operation panel, The lamp 30a can be turned on / off.

  In addition, the lifting operation terminal block 15 of the lifting device and the floor side operation panel are connected via a power line 20 composed of a three-core ascending line, descending line, and common line, and the switch on the floor side operation panel is operated. By doing so, the rated voltage (single phase 200V) is applied between the rising line 20a and the common line 20c to raise the lifting device, and the rated voltage (single phase 200V) is applied between the falling line 20b and the common line 20c. And descend. By this raising / lowering operation, for example, maintenance such as lamp replacement can be performed.

  Therefore, in the above installation work, if incorrect wiring is performed, the following phenomenon occurs.

 That is, when the power supply line 20 is normally connected to a predetermined terminal, the operation is performed as shown by a solid thick line in FIG. 3A (when it is raised) and FIG. 3B (when it is lowered). By switching the switch S of the panel to “up” and “down”, the direction of the current to the electric motor M is reversed, and the raising and lowering operations of the elevating unit 14 are accurately performed.

 However, as shown by the broken line in FIG. 3C, when the descending line 20b and the common line 20c are switched and wired, when the power is turned on, the rising terminal is not applied with voltage in the normal wiring state as shown by the solid thick line. A single-phase voltage of 200V is applied between 15a and the descending terminal 15b, and the relay R1 is excited and the contact R1 connected to the ascending side is instantaneously turned off as shown by the arrow in FIG. 3 (d). Become. When the relay R1 is turned OFF, the contact R1 returns to the original and is connected to the ascending side. The contact R1 repeats this state at a high speed to cause a chattering state. This chattering causes the contacts to weld and causes relay failure.

 In FIG. 3, R1, R2, and R3 are relays, and contacts that are operated by the relays R1, R2, and R3 are indicated by R1, R2, and R3 on the contacts, respectively. L1 and L2 are microswitches that operate in conjunction with the release and lock operations of the elevating unit 14, L3 is a microswitch that detects looseness of the wire rope 13, and M is an electric motor 12a.

  According to the present embodiment, the one-pole terminal block 15e for connecting the common line 20c and the two-pole terminal block 15d for connecting the rising line 20a and the descending line 20b are provided separately, and further the one-pole terminal block 15e. Has a shield plate 22 whose use is prohibited and the terminal portion is blocked, so that it is clearly different from the two-pole terminal block 15d in appearance, and the one-pole terminal block 15e and the two-pole terminal block It can be clearly distinguished without making a mistake with 15d. As a result, it is possible to prevent erroneous wiring by the operator, perform accurate wiring work, and prevent the occurrence of the above-described phenomenon, thereby preventing occurrence of a relay failure.

  At the same time, the terminal portion to be connected can be clearly identified and confirmed again by the display label provided corresponding to the color of each cord of the power line 20 and the color of the applied paint. Therefore, it is possible to perform more accurate wiring work without becoming.

  As described above, in the present embodiment, as shown in FIG. 4, the monopolar terminal block 15 e that connects the common line 20 c and the bipolar terminal block 15 d that connects the rising line 20 a and the descending line 20 b are provided on both side surfaces of the main body 11. It may be configured to be provided separately.

  The 1-pole terminal block 15e is constituted by a terminal block having the same 3-pole function as the 2-pole type terminal block 15d for common parts, and the remaining 2-pole terminals are closed by the shielding plate 22, It may be configured by separate terminal blocks having different functions and outer shapes, and may be configured to be more clearly distinguished from the two-pole terminal block 15d in terms of appearance and function.

  In this embodiment, the present invention is applied to a ceiling-suspended lifting illuminating device, but may be applied to a downlight-type lifting illuminating device in which a lighting fixture is embedded in the ceiling.

  Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various design changes can be made without departing from the scope of the present invention.

The perspective view which shows the raising / lowering apparatus and raising / lowering type illuminating device in embodiment of this invention, notching one part. The elevator apparatus is similarly shown, (a) is a front view showing a state where a lid is opened, and (b) is an enlarged front view showing a terminal block for raising and lowering operations. Similarly, a wiring diagram and an electrical circuit diagram of the lifting device are shown, (a) is a wiring diagram and an electrical circuit diagram at the time of ascent, (b) is a wiring diagram and an electrical circuit diagram at the time of descending, and (c) is an operation at the time of incorrect wiring. FIG. 4D is a wiring diagram and an electric circuit diagram showing another operation at the time of incorrect wiring in FIG. The front view which similarly shows the modification of an raising / lowering apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Lifting device 11 Main body 12 Drive device 13 Wire rope 14 Lifting part 15 Lifting terminal block 15a Lifting terminal 15b Dropping terminal 15c Common terminal 15d Two-pole terminal block 15e One-pole terminal block 20 Power supply line 20a Ascending line 20b Lowering line 20c Common line 30 Lighting fixture 40 Elevating illumination device A Installed part

Claims (3)

A drive unit that winds and unwinds the wire rope;
A lifting part that is suspended and lifted via a wire rope;
A power line composed of a rising line, a falling line and a common line for supplying power to the driving device is configured to be connectable, a rising terminal to which the rising line of the power line is connected, a falling terminal to which the falling line is connected, and A terminal block for raising and lowering operation having a common terminal to which a common line is connected, and separating the common terminal from the rising terminal and the lowering terminal;
A lifting device characterized by comprising: The lifting device according to claim 1, wherein the lifting operation terminal block includes a common terminal as a one-pole terminal block and a rising terminal and a lowering terminal as a two-pole terminal block. An elevating device according to claim 1 or 2;
A lighting fixture attached to the elevator;
An elevating illumination device comprising:

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