JP2000264585A - Lifting device and lighting device - Google Patents

Abstract

(57) [Summary] The present invention provides an inexpensive elevating device and an illuminating device that can quickly respond to customer demands and are inexpensive. A wire rope having a drive unit to which a winding drum 15 is connected and a plurality of pulleys on a fixed portion is provided in a fixed portion installed on a ceiling surface, and a wire rope on which an elevating portion is suspended is a pulley on a fixed portion side. In the elevating device which rotates the driving unit forward and reverse to raise and lower the lighting fixture attached to the elevating unit, the driving unit 12 and the plurality of fixed unit side pulleys 4,
Reference numeral 7 is movably attached to the fixed unit 2, and a plurality of elevating unit side pulleys 38 around which the wire rope 20 is wound to suspend and support the elevating unit 40 are movably attached to the elevating unit, The drive unit, the fixed unit side pulley, and the lifting unit side pulley are moved to adjust the rope width between the wire ropes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevating device for elevating and lowering a lighting fixture or the like installed on a high ceiling or the like, and to a lighting device for raising or lowering a lighting fixture by the elevating device.

[0002]

2. Description of the Related Art Conventionally, lighting equipment installed on a high ceiling such as a gymnasium has been widely used in combination with an elevating device for easy maintenance. The height of the elevating device for lighting equipment is 15 m as standard for each company.

FIGS. 9 and 10 show a lighting apparatus elevating device 1.
As shown in FIG. 1, a box-shaped fixing portion 2 having a rectangular opening 10 on a lower surface installed on a ceiling surface (not shown) or the like, and a pair of hanging portions downward from the opening 10 of the fixing portion. A lighting device (not shown) is detachably mounted on the lower surface of the elevating unit 22 for use.

A drive unit 12 to which a winding drum 15 for winding and rewinding a wire rope is connected is attached to the lower surface side of the top surface 3 of the fixing unit 2 with a screw or the like, and the driving unit 12 is wound around the winding drum 15. A plurality of pulleys serving as fixed side pulleys for guiding the wire rope to be wound and unwound are provided. In the related art, the first pulley 4 and the second pulley 7 are provided.

[0005] The elevating unit 22 suspended from the wire rope 20 rotates the driving unit 12 mounted in the fixed unit 2 in the normal and reverse directions, thereby raising and lowering a lighting fixture (not shown) mounted on the elevating unit 22. It is to let.

However, in recent years, with the diversification of buildings, the number of buildings having high ceilings has increased, and the places where the elevating device 1 is widely used are not limited to gymnasiums, but also public halls in public halls and nursing homes. It is used for various purposes and places of use, such as on the stairs of hotel lobbies and multipurpose halls, and more recently, high ceilings such as water purification plants and recycling centers.

As described above, due to the diversification of the installation location of the elevating device 1, even if the height to the ceiling where the elevating device is installed is, from the top of the stairs of about 3 m, a 5 m stairwell or a 10 m school. Is used at various heights, such as a gymnasium or a multipurpose hall having a height of 15 m.

[0008]

As described above, the conventional elevating device 1 comprises the wire rope 20 for suspending the elevating portion 22.
While the rope width D between them is fixed, in particular, recently, there has been an increasing demand for installing an elevating device even at a height of more than 15 m.

[0009] Therefore, in response to a customer's request, when a lifting device having a height of twice the standard lifting height of the conventional lifting device, for example, a height of 30 m, is manufactured, the following problems arise.

[0010] Compared to the 15 m lifting device, the wire rope is approximately 60 m required for a lifting height of 30 m (the length of the wire rope is approximately twice as long as the lifting height is required because reciprocation is required).
It is necessary to wind a wire rope of this length on a winding drum.

Further, when only the height of the lifting device is increased without increasing the rope width D between the wire ropes suspending the elevating portion, as shown in FIG. Becomes smaller, and consequently,
The problem is that the lighting unit 21 attached to the elevating unit 22 is easily rotated together with the elevating unit 22 because the elevating unit is almost suspended by one wire rope. There is.

In order to solve this problem, the elevation height must be 2
In the case of doubling, the rope width between the wire ropes was designed to be approximately doubled.

For this reason, a winding drum capable of winding a wire rope equivalent to 60 m is required. In addition, the width of the elevating part must be increased by the size of the rope width between the wire ropes, and the width of the fixing part for suspending the wire rope for elevating the elevating part must be increased.

As described above, conventionally, when an order exceeding the standard lifting height of the lifting device is received, for example, the winding drum is enlarged in accordance with the lifting height desired by the customer, or In addition, the order of the customer has been responded to by increasing the elevating part and the fixing part by the size of the rope width between the wire ropes.

However, in the conventional method as described above,
Although not technically difficult, compared to standard lifting equipment,
Each time the hoisting drum and the ropes between the wire ropes were widened, the elevating and lowering parts and fixing parts that had to be made larger had to be made each time, resulting in a problem that the delivery time became longer and the price became more expensive. .

The present invention has been made in view of the above points, and an object of the present invention is to provide an inexpensive elevating device and an illuminating device that can respond quickly to customer demands and that are inexpensive.

[0017]

According to a first aspect of the present invention, there is provided an elevating apparatus for winding and rewinding a wire rope in a fixed portion installed on a ceiling surface or the like. A drive unit to which a drum is connected and a plurality of fixed unit side pulleys are provided, and the wire rope is wound around the fixed unit side pulley, and an elevating unit is suspended by the wound wire rope, and the inside of the fixed unit is In the elevating device that raises and lowers the lighting fixture attached to the elevating unit by rotating the driving unit forward and reverse, the driving unit and the plurality of fixed unit side pulleys are movably attached to the fixed unit, respectively. In addition, a plurality of pulleys on the raising and lowering portion, on which the wire rope is wound, and which suspends and supports the raising and lowering portion, are movably attached to the lifting and lowering portion. Cars and lifting unit side pulley to move respectively is characterized in that it has adjustable rope width between the wire rope.

According to a second aspect of the present invention, there is provided a lighting device including a lighting device, wherein the lighting device is attached to the elevating device according to the first aspect so as to be able to move up and down. is there.

In the above configuration, even if there is a request exceeding the standard lifting height of the lifting device, a plurality of fixing devices for suspending the wire ropes so that the rope width between the wire ropes for suspending the lifting portion can be adjusted. Part pulleys, a plurality of elevating part side pulleys around which a wire rope is wound to suspend and support the elevating part, and a driving part to which a winding drum for winding and rewinding the wire rope is connected and mounted in the fixed part. Are respectively movable.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A description will now be given, with reference to FIGS. 1 to 8, of an elevator apparatus for lighting equipment according to an embodiment of the present invention.

FIG. 1 shows an external view of a lighting fixture lifting apparatus according to an embodiment of the present invention. The lighting fixture lifting apparatus 1a is installed on a ceiling surface (not shown) or the like and has a rectangular bottom surface. The lighting fixture is suspended by a box-shaped fixing part 2 having an opening 10 and a wire rope 20 hanging downward from the opening 10 of the fixing part 2 in the width direction. 21 comprises an elevating unit 40 having a pair of hanging parts 50, 50 on both sides, which is screwed and fixed.

As shown in FIG. 2, the fixing portion 2 includes a box-shaped fixing portion main portion 25 having a lower surface opening 2a which is open at the lower surface,
A fixing portion cover 11 having a rectangular opening 10 along the width direction, which is screwed to the main portion of the fixing portion with four screws 23 so as to cover the lower surface opening 2a.

On the lower surface side of the top surface portion 3 of the fixed portion 2, a driving portion 12 connected to a winding drum 15 for winding and rewinding a wire rope 20 so as to be able to rotate forward and backward is provided. 15 is arranged on the front side and attached in the width direction with screws or the like (not shown). Further, when the wire rope wound around the winding drum 15 is wound and unwound, the first pulley 4 and the second pulley 7 on the fixed portion side for guiding the wire rope are respectively arranged along the near side. Have been. In addition, the winding drum 15 of the driving unit, the first pulley 4, and the second pulley 7, which are disposed on the fixed unit,
As shown in (B), they are arranged on the same line along the widthwise end of the fixed portion. In addition, the winding drum 1
Reference numeral 5 is attached to a rotating shaft 13 protruding from one end face of the drive unit 12 and rotating forward and backward.

Further, the driving section 1 is provided on the top surface section 3 of the fixing section.
2 are respectively formed in parallel with each other in the width direction so as to be movable in the width direction. It is movably fixed to the surface.

The first pulley 4 on the fixed portion side winds and rewinds the wire rope 20 wound around the winding drum 15 horizontally along the rotation direction of the winding drum, and rewinds the wire rope 20 along the first direction. The wire rope is U-turned to the opening 10 of the fixed portion by winding the wire rope around the pulley 4 in a U-shape.

Then, the wire rope is wound by a quarter around the second pulley 7 on the fixed portion side facing the opening portion 10 of the fixed portion and disposed on the top surface portion 3 of the fixed portion, so that the wire rope is directed downward. Down the wire rope vertically.

Next, the wire rope is wound around pulleys 38, 38 on the lifting section, which are rotatably supported in a pair of suspension sections 50, 50 provided on both sides of the lifting section 40, respectively. Thereby, the lifting unit is suspended, and the wire rope is again turned upward by a U-turn so that the terminal portion 20a of the wire rope faces the opening 10 of the fixing unit and is fixed to the top surface 3 of the fixing unit. Is fixed to the wire rope fixing member 35 rotatably.

The first pulley 4 on the fixed portion side is formed by bending a first pulley mounting member 30 having a U-shaped cross section and opening upward.
A pair of mounting pieces 31, which are rotatably supported on the first pulley mounting member 30 and are formed on both sides of the first pulley mounting member 30 by bending.
31 is arranged on the near side in the longitudinal direction, and a first pulley moving groove 17 having a slit shape is formed so as to be able to move the first pulley mounting member 30 in the width direction. Reference numeral 30 is fixed to the top surface 3 of the fixing portion via the first pulley moving groove 17 with a screw (not shown) or the like.

Similarly, the second pulley 7 on the fixed portion side is rotatably supported by a second pulley mounting member 28 which is bent and formed to have a substantially U-shaped cross section and which is open at the lower side. The top surface portion 29 of the pulley mounting member 28 is disposed on the front side in the longitudinal direction of the lower surface of the top surface portion of the fixing portion, and the second pulley mounting member 29 has a slit shape so as to be movable in the width direction. The pulley moving grooves 18, 18 are respectively formed, and the second
The pulley mounting member 28 is fixed to the top surface 3 of the fixing portion via the second pulley moving groove 18 with a screw (not shown) or the like.

The wire rope fixing member 35 for fixing the terminal portion 20a of the wire rope has slit-shaped wire rope moving grooves 19, 19 arranged in parallel so that the wire rope fixing member 35 can be moved in the width direction. The pair of mounting pieces 36, 36 formed on both sides of the wire rope fixing member are provided with the wire rope moving groove 1.
A screw (not shown) is attached to the top surface 3 of the fixing portion via the components 9 and 19.
Etc. are fixed.

The lifting section 40 suspended from a wire rope
The lighting unit 21 attached to the lifting unit is moved up and down by rotating the driving unit 12 mounted in the fixed unit 2 forward and backward.

An elevating unit having a pair of hanging portions detachably attached to both sides of the outer periphery will be described with reference to FIGS.

The elevating section 40 has an elevating section main body 45 having a substantially oval-shaped penetrating hole 42 at the center, to which an elevating section main body 45 having a slit-like groove 46 having a downwardly opened slit into which a wire rope is inserted is mounted by press fitting or the like. It comprises an outer member 41 and a pair of hanging portions 50, 50 which are detachably attached to both outer peripheral sides of the outer member 41 of the lifting / lowering portion main body.

On the both sides of the outer member 41 of the lifting / lowering portion main body, hanging attachment projections 43, 43 having a rectangular parallelepiped shape and having a pair of screw holes 44, 44 on both sides, are formed to project outward. In addition, slit-shaped grooves 43a, 43a that are open upward and into which a wire rope is inserted are formed on both sides of the side surface of the outer member of the lifting / lowering portion main body.

As shown in FIG. 5B, the suspension 50
FIG. 5A shows a suspension body 51 having an open top and side surfaces.
As shown in FIG. 2, a hanging cover 60 having a substantially inverted L-shape which is attached so as to cover the opening 52 of the hanging body is provided, and the hanging cover 60 has a slit along the center line in the width direction. A wire rope through hole 61 is formed, and a pair of mounting holes 62, 62 are formed on both upper sides.

In the width direction of the bottom wall 53 of the suspension main body 51, a slide portion composed of a rising wall portion 55 and a horizontal wall portion 56, which are distributed on a longitudinal center line and face each other, are formed in an inverted L-shape. 54, 54 are formed respectively. Further, in the middle of the bottom wall portion 53 facing the horizontal wall portion 56, mounting holes 57, 57 into which mounting screws 70 are inserted.
Are drilled respectively.

Further, inside the suspension main body 51, there are provided a vertical wall portion 58 and a horizontal wall portion 58a formed in an inverted L shape from the bottom wall portion 53, and the vertical wall portion 58 and the horizontal wall portion 5 are provided.
8a, a slit-shaped wire rope insertion hole 59 is formed, and on both sides of the upper surface of the horizontal wall portion 58a,
Mounting bosses 48, 48 having screw holes 49 are provided upright at positions opposed to a pair of mounting holes 62, 62 formed on both upper sides of the suspension cover 60.

As shown in FIG. 5 (C), the pulley 38 on the side of the elevating section which is mounted movably in the width direction in the hanging portion,
Pulley attachment member 6 bent upward in a U-shape in cross section
A slide plate 67 rotatably supported by the pulley 5 and a slide plate 67 slidably inserted between the slide portions 54 formed on the bottom wall of the suspension body is provided on the bottom surface 66 of the pulley mounting member 65. It is fixed by welding. Further, on both sides of the slide plate 67, slide-shaped pulley moving grooves 68, 68 are formed in the longitudinal direction.

The assembling of the hanging part 50 is carried out by sliding between the sliding parts 54, 54 formed on the bottom wall 53 of the hanging body 51.
When the slide plate 67 of the pulley mounting member that rotatably supports the pulley 38 is inserted and the screw 70 is inserted from below into the mounting holes 57 formed in the bottom wall 53 of the suspension main body, respectively, The screws 70, 70 are inserted into pulley moving grooves 68, 68 formed in the slide plate of the pulley mounting member.

Then, the nut 7 is attached to the tip of the screw 70.
The pulley mounting member 65 is fixed to a predetermined position of the suspension body by screwing the screw 1 and tightening the screw 70 to the nut 71.

Next, as shown in FIGS. 4 and 5, a hanging cover 60 is attached to the opening 52 of the hanging body, and a screw 75 is inserted into the mounting hole 62 of the hanging cover. Screwed into the screw hole 49 of the mounting boss. Then, the lifting unit 40 is assembled as shown in FIG. 2 by assembling the lifting unit main body 51 into the oval shaped penetration hole 42 of the lifting unit main body outer member by press fitting or the like.

Next, the operation of the lifting device and the lighting device according to the above embodiment will be described.

Hanging portions 50, 50 are detachably mounted on both sides of the outer periphery of the lifting / lowering portion 40 of the lifting / lowering device. Further, in the hanging portions 50, the hanging portions 50 are disposed in fixed portions installed on the ceiling surface 80 or the like. Since the pulleys 38, 38 on the lifting / lowering unit side, which are suspended and supported by the wire rope 20 unwound from the winding drum of the driving unit, are mounted so as to be movable in the width direction, the pulleys inside the lifting / lowering unit are provided. The pulleys 38, 38 on the side of the elevating unit arranged in the vehicle are moved in the width direction.

Further, the drive section 12 mounted in the fixed section and the first pulley 4 and the second pulley 7 on the fixed section side have the same width as the pulleys 38, 38 on the lifting section side. By moving, the rope width D between the wire ropes suspending the lifting device can be changed to be the same width.

Therefore, when a lifting device having a specification higher than the standard height is manufactured, it is only necessary to increase the rope width D between the wire ropes in accordance with the lifting height, and it is not necessary to form a lifting portion each time. Therefore, it is possible to provide an inexpensive elevating device having a wide range of application and an illuminating device capable of elevating an illuminating device attached to the elevating device. Further, the wire rope hanging the lifting unit does not rotate together with the lifting unit.

Here, a supplementary explanation of the elevating device will be given. Increasing the elevating height increases the amount of the wire rope 20 wound around the winding drum 15 as described above, Although it is necessary to increase the size of the drum, as shown in FIG. 6, if the width d of the winding drum 15 is increased, the winding amount of the wire rope can be increased. If it is mounted on the apparatus, it is not necessary to manufacture a fixed part 2 having a wider width as in the prior art every time.

If the height of the ascending / descending is increased without increasing the rope width D between the wire ropes, the ratio of the distance between the ropes to the ascending / descending height becomes small. Since it is in a state close to being hung by a rope, the elevating unit becomes easy to rotate. Therefore, it is necessary to increase the rope width D between the wire ropes according to the elevating height.

Of course, from the beginning, it is possible to use an elevating part with a wider rope width between the wire ropes as a standard elevating device. However, if an elevating unit that is wider than necessary is used, the elevating device body becomes large, On the contrary, the standard type lifting device is expensive.

On both sides of the outer periphery of the elevating section 40 according to the present invention,
The hanging portions 50, 50 are detachably attached, but this is the same as the conventional case, in the case of a standard type elevating device having a height of 5 m or less, as shown in FIG. It can be handled by using a lifting part consisting of: only when it is desired to increase the lifting height beyond the standard, it is only necessary to attach a hanging part to the lifting part, and a pulley that can move inside the hanging part is provided Therefore, it is possible to adjust the rope width between the wire ropes required for the elevating height according to the order of the customer.

As described above, the present invention is characterized in that it has a hanging part detachably attached to the elevating part and has a movable pulley in the hanging part. The idea of increasing the width of the rope between the ropes is important, and the method of moving the pulley in the suspension part is not particularly limited as long as the structure allows the width of the wire rope to be increased.

[0051]

As described above in detail, according to the present invention, the drive unit and the plurality of fixed unit side pulleys are movably mounted in the fixed unit, and the wire rope suspended from the fixed unit is wound. Since a plurality of lifting section side pulleys for suspending and supporting the lifting section are movably mounted, the drive section, the fixed section side pulley and the lifting section side pulley are moved to respectively move the pulley between the wire ropes. Since the rope width can be adjusted, for example, when expanding the rope width of the elevating device, it is not necessary to newly make an elevating unit with an increased rope width, and the elevating unit side pulley deployed in the elevating unit of the elevating device By moving the drive unit and the plurality of fixed unit side pulleys in the fixed unit respectively, it is possible to easily widen the rope width between the wire ropes, and therefore, it is possible to quickly respond to customer demand. And it is intended to propose a economical elevator device and the illumination device.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a lifting / lowering device for a lighting fixture according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a part of a fixing part of the lifting / lowering device for a lighting fixture according to the first embodiment, showing a drive unit and the like in section.

FIG. 3 is a side view showing a state in which the elevating unit is housed in a fixed unit, showing the elevating device for a lighting fixture according to the first embodiment. (B) is a bottom view showing the state where the elevating part was stored in the fixed part.

FIG. 4 is an exploded perspective view showing components of the elevating unit according to the first embodiment.

FIG. 5A is a perspective view showing components of a hanging portion of a lifting unit in the first embodiment, and FIG. 5A is a perspective view showing a hanging cover. (B) is a perspective view showing a suspension main body. (C) is a perspective view showing a pulley mounting member that rotatably supports the pulley.

FIG. 6 is a bottom view showing a state in which the elevating unit is housed in a fixed unit to which a driving unit having a wide winding drum is attached according to the first embodiment.

FIG. 7 is a perspective view showing a state in which a conventional elevating unit is suspended from the fixed unit in the first embodiment.

FIG. 8 is a perspective view showing a state in which the elevating unit is suspended from the fixed unit in the first embodiment.

FIG. 9 is a perspective view showing a lifting / lowering device for a lighting fixture in a conventional technique.

FIG. 10 is a side view showing a state in which a lifting unit is housed in a fixing unit, showing a lifting device for a lighting fixture in a conventional technique. (B) is a bottom view showing the state where the elevating part was stored in the fixed part.

FIG. 11 is a front view of a lifting device for a lighting apparatus according to a conventional technique, showing a state in which a lifting unit suspended from a wire rope rotates and the wire rope is entangled.

[Explanation of symbols]

 Reference numeral 2: fixed portion, 4: first pulley (fixed portion side pulley), 7: second pulley (fixed portion side pulley), 12: drive portion, 15: winding drum, 20: wire rope, 38 ... Pulley (lifting section side pulley), 40: lifting section, 80: ceiling surface, D: rope width between wire ropes.

Claims (2)

[Claims] A drive unit connected to a winding drum for winding and rewinding a wire rope in a fixed portion installed on a ceiling surface or the like, and a plurality of fixed portion side pulleys; An elevating unit that is wound around a unit-side pulley, and a lifting unit is hung on the wound wire rope; and a lifting unit that lifts and lowers the lifting unit by rotating the driving unit in the fixed unit forward and reverse. A plurality of pulleys on the fixed part side are movably attached to the fixed part, respectively, and a plurality of pulleys on the hoisting part, on which the wire rope is wound, and which suspends and supports the elevating part, on the lifting part. The drive unit, the pulley on the fixed unit side, and the pulley on the elevating unit are respectively moved to adjust the rope width between the wire ropes. Descending device. 2. A lighting device comprising a lighting device, wherein the lighting device is attached to the elevating device according to claim 1, and can be moved up and down.