JPH0217089Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a safety fence for an elevator landing opening provided for closing the landing opening of an elevator hoistway, and particularly relates to an improvement of a safety fence support device.

First, a conventional safety fence for an elevator hall opening will be explained with reference to FIGS. 1 to 3.

In FIGS. 1 to 3, 1 is an elevator hoistway, 2 is a wall of the hoistway, and 3 is a landing opening formed in the wall 2. In addition, 4 is a safety fence for closing the landing opening 3 to prevent workers from falling into the hoistway 1, and is provided with a plurality of pipes 5 and a sheet 6, each pipe 5 extending in the longitudinal direction of the sheet 6. It has a structure in which it is arranged parallel to both ends and the middle part.
Reference numeral 7 denotes a mounting bracket fixed to the wall 2 located above the hall opening 3 with an anchor bolt 8, and 9 denotes a three-sided frame fitted into the hall opening 3.

In the safety fence configured as described above, when setting the safety fence 4 in the landing opening 3, first fix the mounting bracket 7 by driving the anchor bolt 8 into the wall 2,
A pipe 5 at one end of the safety fence 4 is attached to this mounting bracket 7.
This is done by hooking both ends of the pipe 5 and making the sheet 6 into a banner shape with the weight of the pipe 5.

However, the anchor bolt 8 that fixes the mounting bracket 7
The driving position into wall 2 is usually 1.8 from the landing floor.
Because the height is approximately 2.0 m, it is necessary to use a stepladder etc. for the driving work, which results in poor work efficiency and the risk of the worker falling into the hoistway. When the installation was completed, the anchor bolt 8 had to be removed, which required a lot of time and manpower. Also,
If the three-sided frame 9 fitted into the landing opening 3 protrudes from the wall 2 toward the landing floor, there are drawbacks such as the pipe 5 of the safety fence 4 interfering with the three-sided frame 9, making it impossible to install the safety fence. Ta.

This idea solves the conventional problems mentioned above.
By adopting a mounting method in which the fixtures that support the safety fence clamp the wall of the landing opening from its thickness direction, anchor bolts are omitted, improving workability and safety when attaching and detaching, and eliminating interference with the three-sided frame. It is an object of the present invention to provide a safety fence support device for an elevator landing opening that eliminates the

Hereinafter, specific embodiments of this invention will be described based on the drawings.

Figures 4 to 11 show an example of the safety fence support device for the elevator landing opening of this invention. In the figures, the same symbols as in Figures 1 to 3 represent the same or equivalent parts, and 10 is These are fittings for supporting the pipes 5 of the safety fence 4, and are attached to the upper left and right sides of the landing opening 3, respectively.

The mounting tool 10 has an L-shaped first claw metal fitting 11.
and a second claw metal fitting 12, and the first claw metal fitting 11 has a claw member 13 of a desired length made of channel steel, and a claw member 13 having a desired length, and a second claw metal fitting 12 at right angles to one end of the claw member 13, as shown in FIGS. A support part 14 made of a channel steel material of a desired length is joined, and a screw hole 15 is formed at the end of the support part 14 on the non-joint side.
Furthermore, a guide hole 1 that coincides with the axis of the screw hole 15 is provided on the joint end side of the claw member 13 with the support portion 14.
6 is drilled.

As shown in FIGS. 10 and 11, the second claw fitting 12 includes a claw member 17 of a desired length made of channel steel, and a claw member 17 of a desired length joined at right angles to one end of the claw member 17. The support part 18 of the first claw metal fitting 11 is slidably fitted into the support part 18, thereby changing the overall shape as shown in FIG. A U-shaped fixture 10 is constructed, and a guide hole 19 is formed on the joint end side of the support portion 18 of the claw member 17 to coincide with the axis of the screw hole 15. A tightening bolt 20 inserted therein is screwed into the screw hole 15, and by rotating this tightening bolt 20, the fitting support parts 14 and 18 can be extended and contracted, and the claw members 13 and 17 The fixture 10 can be fixed to the wall 2 by pinching the wall 2 interposed therebetween. Further, a hole 21 is bored on the free end side (the side that engages with the wall 2) of the claw member 17 of the second claw metal fitting 12, and a support member made of a bolt or the like of an appropriate length is provided in the hole 21. 22 is fixed at a right angle, and a clamp 23 such as a JISA8951 orthogonal fastening fitting is attached to the tip of the support member 22, and this clamp 23 is for gripping the pipe 5 of the safety fence 4. be. Note that the fitting support parts 14 and 1
8 and has a dimensional relationship that allows for smooth fitting without any looseness.

In this embodiment configured as described above, when the safety fence 4 is set to close the landing opening 3, the first and second claw fittings 11 and 12 are connected to the supporting parts 14 and 18. are assembled into a U-shape by fitting them together and screwing the tightening bolt 20 into the screw hole 15, and the mounting fixture 10 assembled in this way is
It is temporarily set on the wall 2 so that the claw members 13 and 17 sandwich the wall 2 from the thickness direction. Thereafter, by rotating the tightening bolt 20 in the tightening direction, the fitting support parts 14 and 18 are slid in a direction in which the lengths of the fitting supports 14 and 18 are reduced, and the wall 2 between the claw members 13 and 17 is separated from both sides. The fixture 10 is fixed to the wall 2 by applying clamping pressure. Then, attach the pipe 5 to the clamp 23.
Once set, the safety fence 4 is constructed so as to cover the hall opening 3 from the hall floor side, as shown in FIGS. 4 and 6. In addition, the first claw metal fitting 1
The first guide hole 16 is provided to prevent the tip of the tightening bolt 20 from interfering with the claw member 13 when the thickness of the wall 2 is small.

In this embodiment as described above, the fixture 10
Since the method is such that the wall 2 of the hall opening 3 is held between the claw fittings 11 and 12 and fixed with the tightening bolt 20, it is easy to attach the fitting 10 to the wall 2, and the work can be done on a stepladder or the like. This eliminates the need for anchor bolts, which makes it possible to install and remove the fixture 10 just by reaching out, ensuring work safety.Furthermore, because it does not use conventional anchor bolts,
The time for attaching and detaching the fixture 10 can be shortened. Furthermore, since the pipe 5 of the safety fence 4 is supported by the clamp 23 attached to the fixture 10 via the support member 22, the three-sided frame 9 fitted into the landing opening 3 becomes large. Even if a part of the fence protrudes toward the hall floor, the safety fence can be erected without the pipe 5 or the like interfering with the three-sided frame 9.

FIG. 12 shows another embodiment of this invention. In the figure, the same reference numerals as in FIGS.
One end of the bolt is screwed into the threaded hole 15 of the support part 14 that is fitted together through the guide hole 19, and the part that projects outward from the guide hole is tightening nut 2
5 are screwed together and this tightening nut 25 is tightened, so that the wall 2 can be held between the claw metal fittings 11 and 12 and the fixture 10 can be fixed. A clamp 23 that supports the is fixed.

In this embodiment, in addition to obtaining the same effects as the embodiments shown in FIGS. 4 to 11 above,
0, the clamp 23 is fixed to the wall 2 with bolts 24 and nuts 25 of appropriate length, so the amount of protrusion of the clamp 23 from the wall 2 and the amount of screwing of the bolt 24 into the claw fitting 11 are There is an effect that can be adjusted arbitrarily by adjusting the amount.

As explained above, in this invention, a pair of claw metal fittings are provided that sandwich the wall of the hall opening of the elevator hoistway in the thickness direction, and the claw metal fittings are connected by a supporting part that fits into each other so as to be expandable and contractible. The safety fence is supported by a fixture that operates the claw metal fittings in the direction in which the wall is clamped and in the opposite direction using fasteners such as bolts, so there is no need for conventional anchor bolts. This makes it easier to attach and remove the fixture from the wall.
In addition to ensuring work safety, the work time for installing and removing the safety fence, including the mounting tools, can be shortened. Furthermore, since the safety fence is supported by the clamp attached to the fixture in a protruding manner, even if the three-sided frame becomes large, the safety fence can be erected without interfering with the safety fence.

[Brief explanation of the drawing]

Fig. 1 is a front view showing a conventional safety fence support device for an elevator hall opening, and Fig. 2 is a -
A cross-sectional view along the line, Figure 3, is the same as - in Figure 1.
4 is a front view showing an example of the safety fence support device for the elevator hall opening of this invention, FIG. 5 is a sectional view taken along the line - in FIG. 4, and FIG. 4 is a cross-sectional view taken along the - line in FIG. 4, FIG. 7 is an enlarged view of the main part of FIG. 5, FIG. 8 is a plan view of the first claw metal fitting of this invention, FIG. 11 is a side view thereof, and FIG. 12 is an enlarged sectional view corresponding to FIG. 7 showing another embodiment of this invention. 1... hoistway, 2... wall, 3... landing opening,
4...Safety fence, 5...Pipe, 6...Sheet, 1
0... Mounting tool, 11... First claw metal fitting, 12...
Second claw metal fitting, 13, 17...Claw member, 14, 1
8... Support part, 15... Screw hole, 20... Tightening bolt, 22... Support member, 23... Clamp, 2
4... Bolt (tightening tool), 25... Nut. In addition,
The same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] A fixture having first and second claw fittings that sandwich the wall of a landing opening of an elevator hoistway in the thickness direction, and a support that allows the first and second claw fittings of this fixture to fit together in an expandable and contractable manner. A tightening mechanism provided in the section,
and a clamp attached to one of the first and second claw fittings to support a safety fence attached to the seat, the distance from the wall of the clamp supporting the safety fence being adjustable. Safety fence support device for elevator hall openings.