JPH0753216Y2 - Lifting device for lighting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention mainly relates to an elevating device for electrically setting a lighting fixture or the like on a ceiling.

(Prior Art) Conventionally, as this type of lifting device, a winding device that winds a wire around the lifting device body mounted on the ceiling and a lighting fixture that is raised and lowered by the wire are hung under the lifting device body. There is a type in which an elevating body is provided, and a lock rod provided at the center of the upper part of the elevating body is inserted into a guide tube provided on a mounting base on the main body side and can be held by a stopper.

(Problems to be solved by the invention) However, in an elevating device in which a lock rod attached to an elevating body is inserted and held in a guide tube on the main body side, shaking of a lighting fixture or the like occurs when winding the elevating body. The tip of the lock bar may not enter the entrance of the guide tube on the main body side due to inclination or the like. For that reason, there is a problem in that the lifting body cannot be locked, and that it rises as it is to cause an obstacle.

The present invention has been made in view of the above problems of the conventional technique, and an object of the present invention is to provide an elevating device that prevents the occurrence of the above-mentioned obstacles.

(Means for Solving the Problems) In order to achieve the above object, the lifting device according to the present invention is
A winding device that winds a wire around the lifting / lowering device body mounted on the ceiling, and an elevating / lowering body that hangs lighting fixtures that are raised / lowered by the wire are provided at the bottom of the lifting / lowering device body. Lifting device that is fixed to the lifting device body via a pair of attached rollers, and a lock bar is established in the upper center of the lifting body so that it can be inserted into a guide tube provided on the mounting base of the body and held by a stopper. In the case of the lifting device main body, a pair of left and right slide rails are vertically mounted so that one piece of the L-shaped guide plate can be slid vertically along the guide rail, and the other piece is horizontally aligned below. To provide a deep groove or hole facing each other so as to guide the wire through the groove or hole, and by constantly urging the guide plate downward by the guide spring, The rising is obtained by the push up so against a pair of guide plates to guide the spring by the lifting body.

(Operation) Since the L-shaped guide plate is provided on the lifting device main body side during the ascending of the elevating body as described above, even if the elevating body is tilted and ascended, the guide plate is first placed near the roller on the higher side of the elevating body. And is forced horizontally by the downward force of the guide spring. After that, the lock rod is raised horizontally along the slide rail while being held horizontally by the pair of guide plates, so that the lock rod is surely inserted into the guide tube. In addition,
Even if the lifting body shakes, it does not shake by contacting the guide plate.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a vertical cross-sectional front view showing a locked state of a lifting device from which the lighting equipment of the present invention is removed, and FIG. 2 is a sectional view taken along the line AA of FIG. As shown in the figure, the lifting / lowering device body 1 is horizontally attached to a structure of a building, for example, a ceiling by a bolt or the like, and is provided with a winding device such as a motor or a wire winding drum (not shown). . Reference numeral 2 denotes an elevating body which is hung by a wire 3 below the center of the elevating / lowering device main body 1 through a pair of rollers 3a. A lock rod 4 is erected on the upper center of the elevating body 2. There is. The lock rod 4 has a conical head 4a and a rod-shaped neck 4b, which can slide vertically on the neck 4b at a constant interval, and has a sleeve 4c having an outer diameter substantially the same as the outer diameter of the head 4a. Is installed. Further, the lifting device body 1 is provided with a mounting base 5 at a position facing the lock rod 4.
Is fixed downward, and a guide tube 6 that allows the lock rod 4 to move in and out is attached to the mounting base 5. The upper end of the end is flat so that the lock rod 4 can be held or released at the base thereof, and the lower part is A stopper 7 having an inclined surface is urged by a spring 8 so that the lock rod 4 can be always held.
Further, the stopper 7 holds the neck 4b of the lock rod 4 by the spring 8 to hold the head 4a on the upper plane of the stopper 7 in the state where the lifting / lowering body 2 is stopped ascending as shown in the figure. When lowering, the lifting body 2 is once raised and the lower slope of the stopper 7 is widened by the sleeve 4c, and when it is lowered as it is, the sleeve 4c lowers in contact with the head 4a, so the stopper 7 is widened. The elevator body 2 continues to descend as it is. Of course, at that time, the stopper is in a closed state. In addition, the mounting base 5 of the lifting device body 1
A switch box 9 is attached to the upper part of the above, and a group of limit switches 11 is operated by a slider 10 which is vertically controlled by the lock rod 4 to automatically move the elevating body 2 up and down. The details are as follows: Application for utility model application filed on the same day (A)
The detailed description is omitted here since it is not the gist of the present invention.

In the above structure, when the lifting body 2 is wound,
There may be a case where the lifting and lowering body 2 tilts and rises as shown in FIG. In this case, the lock bar 4 comes out of the entrance of the guide tube 6 and cannot be inserted into the guide tube 6. Therefore, in order to eliminate such problems, in the case 1a of the lifting device body 1,
A pair of left and right slide rails 12 are vertically mounted, and a piece 13a of an L-shaped guide plate 13 is slidably mounted vertically along the rails 12. Further, the other pieces 13b are arranged horizontally downwardly so as to face each other, and deep grooves 14 facing each other are provided so as to guide the wires 3 respectively. Furthermore, the guide spring 15 constantly guides the plate 13.
Is to be urged downward. A hole may be provided instead of the groove of the illustrated embodiment.

In this way, when the lifting / lowering body 2 tilts and rises as shown in FIG. 3, the vicinity of the roller 3a on the higher side (left side in the figure) of the lifting / lowering body 2 first comes into contact with the piece 3b of the guide plate 13. However, since the downward force of the guide spring 15 suppresses the upward movement, the lower side (the right side in the drawing) rises, and the elevating body 2 is forced horizontally. After that, the elevating body 2 ascends together with the guide plate 13 in the horizontal state. Therefore, the lock bar 4 is accurately inserted into the entrance of the guide tube 6. Note that the guide plate 13 is also forced to the correct position against the shaking of the lifting / lowering body 2 as described above. Further, in the embodiment, the guide plate 13 is separated into the left and right,
Even if this is integrated, the same effect can be obtained.

(Effects of the Invention) As described above, according to the present invention, a pair of left and right L-shaped guide plates that can slide up and down are biased downward by guide springs in the case of the entire lifting device, and a deep groove or Since the wire is guided in the hole during the ascent of the lifting body, if the lifting body tilts and rises, or swings and rises, it comes into contact with the guide plate and Since it is forced horizontally by force, the lock bar can be properly inserted into the guide tube. Therefore, there is an effect that the positioning for the lock is smoothly performed.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional front view showing a locked state of an elevating device from which the lighting equipment of the present invention is removed, FIG. 2 is a sectional arrow view of FIG. 1, and FIG. 3 is an operation explanatory view thereof. 1 ... Lifting device main body, 2 ... Lifting body, 3 ... Wire, 4 ... Lock rod, 5 ... Mounting base, 7 ... Stopper, 8 ... Spring, 9
… Switch box, 10… Slider, 11… Limit switch, 12… Slide rail, 13… Guide plate, 14…
Groove, 15 ... Guide spring

Front page continuation (72) Inventor Hirofumi Inoue 1-1 Ichiriyama-cho, Gyoda-shi, Saitama Iwasaki Electric Co., Ltd. Saitama Plant (56) References: 60-110926 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A winding device for winding a wire around a lifting / lowering device main body mounted on a ceiling, and an elevating / lowering body for suspending a lighting fixture or the like that is lifted / lowered by the wire at the lower part of the lifting / lowering device main body to wind the wire. The device is fixed to the lifting device body via a pair of rollers attached to the lifting body, and a lock rod is established at the center of the upper part of the lifting body, which can be inserted into a guide tube provided on the mounting base of the body and held by a stopper. In this lifting device, a pair of left and right slide rails are vertically mounted in the case of the lifting device main body, one piece of the L-shaped guide plate is slidable vertically along the guide rail, and the other piece is lowered. Are arranged horizontally opposite each other and have deep grooves or holes facing each other so that the wires are guided by the grooves or holes, and the guide spring constantly urges the guide plate downward. Ascent of the lifting body, the lifting device such as a luminaire in push up so against a pair of guide plates to guide the spring by the lifting body.