JPS6041982Y2 - Intermediate transition device in lifting guide rail - Google Patents

Description

[Detailed description of the invention] The present invention consists of a guide rail installed along the step bolt or ladder of a steel tower, especially a power transmission line tower, a fall prevention device that runs guided by this guide rail, and a turntable for changing direction. Regarding the intermediate transition device in the lifting guide rail consisting of
The present invention relates to an intermediate transition device in a lifting guide rail configured to be able to transition from lifting or lowering in the horizontal direction and then again to vertical lifting or lowering.

For high-rise steel towers, it is normally okay if they can be raised and lowered only in the vertical direction, but high-voltage power lines are installed, such as towers for power transmission lines, and it is especially important to prevent danger from outsiders climbing on the towers. In cases where it is necessary to move the ladder, the step bolt area may be moved halfway up the ladder, for example from the front or at the corner, so that outsiders may have the impression that climbing is difficult or impossible at first glance. The upper part of a part of the ladder was interrupted, and the next step bolt or ladder was installed on the side displaced by 90° or 45° to prevent ascent by outsiders as much as possible.

Although it is possible to prevent outsiders from climbing the ladder by changing the position of the step bolts or ladders as described above, it is also necessary to ensure the safety of professional workers.

However, in the past, no consideration was given to this point.

Therefore, in the past, when ascending and descending in the vertical direction, accidents could be prevented as much as possible by having a guide rail and a fall prevention device that was guided by the guide rail, but as mentioned above, the displacement Accidents often occur when moving between ladders, etc., which are set up in the same way, and it is also time-consuming to attach and detach fall prevention devices to and from the guide rails.

The present invention was developed by focusing on the above points, and its purpose is to prevent the corners of the turntable from collapsing due to the configuration of the turntable itself and the related configuration of the turntable, fall prevention equipment, and guide rails. An object of the present invention is to provide an intermediate transition device in a lifting guide rail that can safely perform horizontal transition that does not include a corner or includes a part of a corner.

Another object of the present invention is to improve the shape of both end faces of the turn rail provided on the turntable, the end face shape of the turn rail (or the connecting rail provided between the turn rail and the guide rail), and the related configuration of both. Therefore, the turn rail can be stopped at the position where it has reciprocated by 90 degrees without using any other stopper, and there is no need to provide another stopper, so the structure can be simplified accordingly. An object of the present invention is to provide an intermediate transition device in a rail.

Another object of the present invention is to provide a lifting guide rail that can prevent the fall prevention device from detaching when the turn rail does not match the guide rail (or the connecting rail). An object of the present invention is to provide an intermediate transfer device that can be used for

Next, an embodiment of the present invention that can achieve the above object will be described in detail with reference to the accompanying drawings.

In Figure 1, 1 is the first stage vertical guide rail, 2
3 is a vertical guide rail of the second stage, 3 is a horizontal guide rail, a is a plurality of turntables, and in FIGS. 2, 3, and 7, b is a fall prevention device. .

The turntable a is constructed as shown in FIGS. 4-7.

That is, in these drawings, 4 is a bottom plate, 5 is a circumferential side plate provided with access frames 5a and 5b at positions displaced by 900 degrees, and 6 is a top plate 6 having a bottom plate 6a, left and right side plates 6b, and an opening 6c in the center.
d, and a turn rail that is more powerful than the hanging plate 6e connected to the upper plate 6d, both ends 6f of which are formed into slopes, and are formed into a trapezoidal shape in plan view.

Further, a stopper 6g for a fall prevention device is provided protruding from one of the left and right side plates 6b.

The turn rail 6 configured in this way has a bottom plate 6a.
is attached via a disk 7 to the bottom plate 4 of the turntable a with bolts and nuts 8 so as to be rotatable back and forth.

Reference numeral 9 indicates a vertical connection rail, 10 indicates a left and right connection rail, and the bottom plate 9 is similar to the turn rail described above.
a910a, left and right side plates 9b, 10b opening parts 9c, 10c
It is composed of upper plates 9d, 10d1 and hanging plates 9e, 10e, and one end portions 9f, 10f thereof are formed on the same slope as the slopes of both ends 6f of the turn rail 6 described above.

The vertical connection rail 9 configured in this manner is fixed to the entrance/exit frame portion 5a of the turntable a, and the left/right direction connection rail 10 is secured to the entrance/exit frame portion 5b.

Therefore, as shown in FIG. 4, one end portion 9f forming a slope,
10f and the slope 6f formed at both ends at the solid line position and the two-dot chain line position where the turn rail 6 is reversibly rotated by 90°.
Due to the abutment, the rotational position can be stopped reliably without providing a stopper for regulating the rotational position, and there is no gap between the abutting and connecting surfaces.

The vertical guide rail 1 of the first stage, the vertical guide rail 2 and the horizontal guide rail 3 of the second stage are connected to the bottom plate law as well as the turn rail 6 and the connection rail 10.
2a*3as left and right side plates 1b, 2b, 3b, upper plate 1d, 2d, 3d with openings 1c, 2c, 3c,
It is composed of hanging plates 1e, 2e, and 3e.

The guide rails 1 and 2 configured in this manner are connected to the connecting rails 9 and 9 with bolts and nuts 12 via connecting fittings 11, and both ends of the guide rail 3 are connected to connecting fittings 13.
are connected by bolts and nuts 14.

The fall prevention device is constructed as shown in Figures 2, 3 and 7.

That is, in these drawings, 15 is the main body plate, and 16 is the main body plate 15.
Bearings 17 are fixed to both ends of the bearing 16, pulley shafts 18 are provided at both ends of the pulley shaft 17, and 19 are fixed to both sides of the upper end of the main body plate 15. 20 is a lever plate shaft mounted horizontally on the bearing 19, 21
1 shows a lever plate whose bases are rotatably provided at both ends of a lever plate shaft 20, and both lever plates 21 are connected in the middle by a spring holder 22.

A coil spring 23 is mounted on the bearing 19, and one end of the coil spring 23 is hooked on the spring receiving rod 22 and the other end is hooked on the main body plate 15. The coil spring 23 causes the lever plate 21 to move around the lever plate shaft 20 as a fulcrum. It is configured to rotate in the direction of arrow y in FIG.

Also, at the base of the lever plate 21 are guide rails 1, 2, . 3 and turn rail 6, upper plates 1d and 2 of connection rails 9 and 10
d, 3d and 6d, 9d, pressure contact portion 21 to the surface of 10d
a is formed.

24 is a split bearing (note: a bearing with a separate middle part) fixed to the inside of the tips of both lever plates 21. 25 is an operating plate having a life rope connection hole 25a and an elongated guide hole 25b, and the upper part thereof is a split bearing. It is rotatably supported by a support shaft 26 mounted horizontally on a bearing 24.

Further, a guide rod 27 provided at the other end or lower portion of the main body plate 15 is fitted into the elongated guide hole 25b.

And is pulley 18 a guide rail? , 2. 3 bottom plates 1a, 2a, 3a and turn rail 6 bottom plate 6a, connection rails 9, 10 bottom plates 9a, 10a or top plates 1d, 2
d, 3d, 6d, 9d, and are configured to run along the leds.

Further, the main body plate 15 is provided with auxiliary pulleys 28 which individually slide into sliding contact with the rain hanging plates 6e of the turn rail 6, as shown in FIG.

In the above configuration, the worker connects the tip of the life rope whose base is connected to the waist part to the life rope connection hole 25a of the actuating plate 25 of the fall prevention device, and guides the pulley 8. Rail 1, connection rail 9, turn rail 6 of turntable a, connection rail 10, guide rail 3, connection rail 10. Run on the turn rail 6, connection rail 9, and guide rail 2 of turntable a,
In addition, the tower is built or lowered using ladders or step bolts installed on the guide rails 1 and 2, and cross beams on the guide rail 3. In this case, for example, the connection from the guide rail 1 is When transferring to the guide rail 3 via the turn rail 9 and the turn rail 6 connecting rail 10 of the turn table a, the turn rail 6 of the turn table a is positioned vertically as shown in FIGS. 1 and 4. In other words, the pulley 18 of the fall prevention device is placed vertically on the guide rail 1.
As the worker moves to the left, the turn rail 6 is rotated in the direction of the arrow in FIG. 4, that is, counterclockwise. As a result of this rotation, the slope of the upper end 6f of the turn rail 6 collides with the slope of the right end 10f of the connection rail 10, and the rotation stops.

Therefore, the pulley 18 of the fall prevention device is connected to the connecting rail 10.
It moves to the guide rail 3 via.

Also, the transition from the guide rail 3 to the guide rail 2 via the connection rail 10 and the turntable a connection rail 9, and the guide from the guide rail 2 via the connection rail 9 and the turntable a connection rail 10. The transition to the rail 3 and the transition from the guide rail 3 to the guide rail 1 via the connection rail 10 and the turnchip Lumi 1 connection rail 9 are performed in the same manner as described above, but in these cases, for example, When the turn rail 6 of the turntable a is not connected to the connecting rail 10 on the right side of the horizontal guide rail 3 as shown in FIGS.
Note: If the worker who descends first moves from the connection rail 10 to the turn rail 6 and then moves to the guide rail 1 via the connection rail 9, the turn rail 6 will rotate in the vertical direction as shown in the drawing. It remains in motion.

) Even if the worker attempts to move without knowing that the turn rail 6 is in the vertical direction, the turn rail 6
Due to the presence of the stopper 6g on one side, the pulley 18 of the fall prevention device is blocked by the stopper 6g, in other words, the fall prevention device is prevented from detaching from the turntable a.

Furthermore, if the worker falls for any reason during the ascent or descent as described above,
When both hands are separated from the ladder, etc.), the operating plate 25 of the fall prevention device is pulled downward (note, via the life rope) by the weight of the fall prevention device (via the life rope), and at the same time the lever plate 21
In combination with the spring force of the coil spring 23, the lever plate shaft 20 rotates in the direction of the arrow y, and its pressure contact portion 21a connects to the upper plate 1d, 2d, 3d of the guide rail 1, 2, 3, etc.
1. It is pressed against the surface of the upper plate 6d of the turntable 6 to prevent it from falling.

Although one embodiment of the present invention has been described above, the present invention is not limited thereto. For example, the guide rail 1.1 without using the connecting rail 9.10. 2. 3 may be connected directly to turntable a (in this case, guide rail 1
, 2, and 3 are formed into slopes similar to both ends 6f of the turn rail 6.

) Also, fall prevention devices may be modified in design as appropriate.

As described above, the present invention is a turn rail that is attached to a turntable that is attached to the vertical surface of a steel tower on the same plane where one end of each guide rail in the vertical direction and left and right directions crosses each other so as to be able to rotate 900 times. In particular, both ends of the turn rail are formed into slopes to form a trapezoidal planar shape, and one end of each of the turn rails is formed into a slope that abuts the slope of the end of the turn rail. As a result, in the conventional example shown in FIG. 8B, which shows a comparison of the turning trajectories of the turn rails, in the case where an abutting slope is not formed, each guide rail is 1
, 2 and the end of the turn rail 6, a gap G is inevitably present therebetween, and a rotation stopper S of the turn rail 6 is required. As shown in FIG. 8A, the invention is that the ends 6f, 9f: 6f, 10f forming the abutting slopes act as rotation stoppers for the turn rail 6, so the installation of a stopper can be omitted. Each guide rail 1
, 2 and the end of the turn rail 6, and the pulley of the fall prevention device can move extremely smoothly.

[Brief explanation of the drawing]

The drawings show an embodiment of the intermediate transition device in the lifting guide rail according to the present invention, FIG. 1 is a conceptual diagram, FIG. 2 is a plan view of the fall prevention device, and FIG. 3 is a side view of the same. Fig. 4 is a plan view of the turntable section, Fig. 5 is a front view of the same as above, Fig. 6 is a sectional view taken along the line ■-Vl in Fig. 4, and Fig. 7 shows the relationship between the turntable and fall prevention equipment. Front view revealed, No. 8
Diagram A. B is a comparison diagram of the rotation locus of the turn rail of the present invention and the conventional example. a... Turntable, b... Fall prevention device, 1, 2, 3... Guide rail, la
, 2a. 3a...Bottom plate, lb, 2b, 3b...
・・Left and right side plates, I Ct 2 C, 3c"" opening, l
d, 2d, 3d...Top plate, 6...
Turn rail, 6a...Bottom plate, 6b...
・Left and right side plates, 6c...Opening, 6d...
・Top plate, 6f... Both ends, 6g... Stopper, 18... Pulley, 21... Extension plate, 21a... Pressure welding Part, 25... Actuation plate, 25a... Life rope connection hole.

Claims (1)

[Claims for Utility Model Registration] A turntable installed vertically on a steel tower on the same plane where one end of each guide rail in the vertical direction and horizontal direction intersects with each other, and the turntable is capable of reciprocating 90 degrees. A turn rail is attached to the bottom plate and has both ends alternately connected to one end of each of the guide rails, and a fall prevention device that runs on the turn rail and each of the guide rails. It consists of a side plate and a top plate having an opening, and has a trapezoidal planar shape with both ends formed into slopes, and is equipped with a stopper for preventing the fall prevention device from detaching. Each of the guide rails has a bottom plate and left and right side plates. The fall prevention device extends from a top plate having an opening and has one end formed into a slope that abuts the slope of the end of the turn rail,
A spring-loaded lever plate having a pulley that rotates on the bottom plate of each of the guide rails and turn rails, an actuating plate for connecting the life rope, and a pressure contact portion to the upper plate surface of each of the guide rails and turn rails. An intermediate transition device in a lifting guide rail, comprising: