JPS6128593B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides that a hoistway is installed along a slope,
The present invention relates to an emergency stop device for a diagonal elevator that provides service between a plurality of locations separated both vertically and horizontally.

Since an elevator system is operated with a car suspended by a rope, an emergency stop device is provided in case the car falls abnormally, such as when the hanging rope is cut.

Figure 1 shows an example of an emergency stop device installed in a normal elevator, where 1 is the floor of the machine room, 2 is the governor rope, 4 is the pulling rod, 5 is the rope connection, 6 is a wedge, 7 is an emergency rope tensioner, 8 is a car, and 9 is the floor of the car.

The rope 3 is stretched across the pulley of the speed governor 2 by a tension wheel 7, and is connected to the pulling rod 4 by a connecting portion 5, and normally moves together with the movement of the car 8. It is designed to rotate the pulley of the speed governor 2.

When the descending speed of the car 8 exceeds a preset speed, the speed governor 2 operates and brakes the movement of the rope 3, thereby causing the pulling rod 4 to move upward relative to the car 8. Then, the wedge 6 is pulled up to sandwich the guide rail (not shown), and an emergency brake is applied to prevent the car 8 from descending.

This emergency stop device has been widely used in the past because it has a relatively simple construction, reliable operation, and sufficient reliability.

Incidentally, in addition to such a normal vertical elevator system, a diagonal elevator system as shown in FIG. 2 is also known. In this figure 2, 1
0 is the hoistway, 11 is the machine room, 12 is the hoisting machine, 13
14 is a wire rope, 15 is a running rail made of H-beam steel, 16 is an underframe, 17 is a car, 18 is an entrance, and 19 is a running wheel.

The hoistway 10 is installed with a predetermined angle of inclination,
A traveling rail 15 is installed along the bottom surface.

The underframe 16 on which the car 17 is placed is the running wheel 1
9 makes it possible to run on the running rail 15, and is raised and lowered by a lifting rope 14 that is strung around the sheep of the hoist 12 by a diversion wheel 13, and is moved up and down through the plurality of entrances and exits 18. Provide services for passengers getting on and off between stations.

FIG. 3 shows details of the underframe 16 and the car 17, 20 is a counterweight, and 21 is a running wheel of the counterweight 20.

Two running rails 15 made of H-beam steel are provided, and the upper surfaces of the tops thereof serve as running surfaces for running wheels 19 of the underframe 16.

The counterweight 20 is fitted inside the two running rails 15, and the running wheels 21 run on the upper surface of the inner lower part of the running rails 15.

The car 17 is vertically mounted on the inclined underframe 16, and is installed so that its bottom surface is horizontal.

This diagonal elevator system has been attracting attention in recent years because it can efficiently service multi-floor buildings built in a stair-like manner depending on the topography.

By the way, even in this diagonal elevator system, the weight of the car is supported by the running wire rope, and like normal vertical elevator systems, there is an emergency stop device in case the descending speed becomes abnormally high. Requires.

Therefore, in the conventional oblique elevator system, the wedge of the emergency stop mechanism is moved in the downward direction of the underframe as shown by A in FIG. It was installed near the end, and the wedge was moved from the governor rope via a pull-up rod.

However, such conventional oblique elevator systems have a drawback in that when the emergency stop mechanism is activated, a large overturning moment is generated in the car and the underframe, resulting in an extremely dangerous situation. That is, in FIG. 3, when the emergency stop is activated and the underframe 16 suddenly stops while it is descending, a large force as indicated by the arrow F acts on the car 17. If the emergency stop mechanism is installed near the lower end of the underframe 16 as shown by A, a moment with this point A as a fulcrum will be generated in the underframe 16 as shown by arrow M, This causes a large overturning moment to occur in the car 17.

An object of the present invention is to eliminate the drawbacks of the prior art described above, and to prevent a large overturning moment from occurring in the car or the underframe even when the emergency stop is activated.
To provide an emergency stop device for a diagonal elevator system that does not require wasted space for the emergency stop mechanism.

In order to achieve this object, the present invention provides a wedge of the emergency stop mechanism near the end of the underframe in the upward direction, and connects a connecting mechanism to the governor wire for operating the emergency stop mechanism from the position of the wedge to the underframe. It is characterized in that it is provided offset to the end in the downward direction.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of an emergency stop device for a diagonal elevator according to the present invention will be described with reference to the drawings.

FIG. 4 is a plan view showing one embodiment of the present invention, and is a view from above of only the necessary parts excluding the car 17 in FIG. 3, and FIG. Figure 6 is also a cross-sectional view of Figure 4.
It is a sectional view taken along the line CC in the figures, and in these figures, 22 is the governor rope, 23 is the connecting shaft, 24 is the front beam, 25 is the emergency stop mechanism, 26 is the emergency stop guide rail, 27 Wedge for emergency stop, 28 arm for push-up bar, 29 oval hole, 30 push-up bar, 31 push-up plate, 32
3 is a nut for attaching the push-up bar 30 to the push-up plate 31, 33 is a horizontal bar, 34 is a bearing portion of the connecting shaft 23, and 35 is an arm for connecting the rope 22.

The emergency stop mechanism 25 is attached to the two front beams 24, and slidably holds the wedge 27. When the wedge 27 is moved in the direction of the arrow in FIG. 5, it is guided by the wedge surface of the wedge 27. rail 26
It functions to firmly sandwich the

The guide rail 26 is attached to the floor surface of the hoistway 10 inside and parallel to the two running rails 15 (FIGS. 2 and 3).

The connecting shaft 23 is rotatably held on the underframe 16 by a bearing 34, and is supported by two sets of push-up rod arms 28.
and an arm 35 for connecting to the governor rope 22 are attached, and the arm 3 is connected by the rope 22.
5 is rotated, the arm 28 is thereby also rotated in the direction of the arrow in FIG. 5 via the connecting rod 23.

The push-up rod 30 has one end attached to the nut 3.
2 to the push-up plate 31, and the opposite end thereof is connected to the oblong hole 29 of the arm 28 by a horizontal bar 33.

The push-up plate 31 is attached to the rear end of the wedge 27, and when the arm 28 rotates as shown by the arrow in FIG. 5 and the push-up bar 30 is moved in the direction of the arrow, it moves the wedge 27 together in the same direction. It works to move.

The speed governor rope 22 is the same as the speed governor rope 3 in the ordinary elevator system shown in FIG. However, normally it moves along with the movement of the car 7 by following the movement of the car 7 (same as 2 in Fig. 1) and a tension wheel (same as 7 in Fig. 1) provided below the hoistway 10. , car 7
When the descending speed of the rope 22 reaches a predetermined value or more, the speed governor stops the movement of the rope 22.

Therefore, cutting of wire rope 14 and hoisting machine 1
If the descending speed of car 17 increases beyond a predetermined level due to a failure of car 1,
Since the movement of the governor rope 22, which had been moving along with the rise and fall of the car 17, is stopped, the arm 35 rotates in the direction of the arrow in Fig. 5 as the car 17 descends. moved, the connecting rod 23;
The push-up plate 31 is moved in the direction of the arrow in FIG. 5 by the wedge 28 and the push-up bar 30, and the wedge 27 pinches the guide rail 26 with a strong force.
It is possible to apply a brake to stop the abnormal descent of the car 7, and to operate an emergency stop mechanism for safely holding the car 7 in that position.

In this embodiment, the wedge 27
An emergency stop device 25 including an emergency stop device 25 is attached to the inside of the front beam 24, that is, near the end of the underframe 16 in the upward direction in the inclination direction of the hoistway 10. Therefore, according to this embodiment, when the emergency stop mechanism is activated, the moment due to the inertial force F of the car 17 (see FIG. 3) is generated with the fulcrum near the end of the underframe 16 in the upward direction. , the arrow M ₀ in Figure 3
Only a force is generated that presses the end of the underframe 16 in the downward direction against the rail 15, as shown by , and the generation of a moment that would cause the car 17 to fall can be sufficiently suppressed.

Further, in this embodiment, the drive mechanism for operating the wedge 27 of the emergency stop device 25 by the governor rope 22 includes the horizontal bar 33 and the connecting rod 2.
3. It is composed of a link mechanism consisting of an arm 28 and a push-up rod 30, and as a result, this drive mechanism is completely housed in the side facing from the emergency stop device 25 to the end of the underframe 16 in the downward direction. Therefore, an extra space for providing an emergency stop mechanism in the underframe 16 is completely unnecessary, and the entire structure can be made smaller. In other words, if the wedge of the emergency stop device 25 is driven from the governor rope 22 via the pull-up rod as in the conventional example, the end of the underframe 16 in the upward direction can be further extended in the upward direction. In addition, a drive mechanism must be provided in this extended portion, which would require wasted space in the conventional example, but in this example, the emergency stop device 25
Since the wedge 27 is moved by the push-up rod 30, no wasted space is required as described above.

As explained above, according to the present invention, an emergency stop device that does not require an extra extension part on the underframe of a skew elevator, and that reduces the risk of generating a large overturning moment with respect to the car when the emergency stop is activated. This eliminates the shortcomings of the conventional technology and is highly safe, and it is easy to reduce costs by eliminating the need for overhanging the hoistway or increasing the space under the floor of the machine room due to the presence of an extension of the underframe. It is possible to provide an emergency stop device for a diagonal elevator.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing an example of an emergency stop device in a normal vertical elevator system, FIG. 2 is a side sectional view showing an example of a diagonal elevator system, and FIG.
The figure is an enlarged view of the car and underframe, FIG. 4 is a plan view showing the essential parts of an embodiment of the diagonal elevator emergency stop device according to the present invention, and FIG. 5 is taken along the line B--B in FIG. Fig. 6 is a cross-sectional view taken along C-C in Fig. 4.
FIG. 10... Diagonal elevator hoistway, 11... Machine room, 12... Hoisting machine, 14... Wire rope, 15... Running rail, 16... Underframe, 17...
...carriage, 18...doorway, 19...travel wheel, 20...balance weight, 22...rope for speed governor,
24...Front beam, 25...Emergency stop device, 26...
Guide rail for emergency stop, 27... Wedge for emergency stop, 28... Arm for push-up bar, 29
...Oval hole, 30...Pushing rod, 31...Pushing plate, 33...Horizontal bar, arm for connecting speed governor rope.

Claims (1)

[Claims] 1. In a diagonal elevator equipped with an underframe that runs on a lifting rail installed along a hoistway formed on an inclined surface, and a car installed on the underframe, an elevator that is installed parallel to the lifting rail The guide rail is installed near the end of the underframe in the upward direction so as to face the emergency stop guide rail with a gap therebetween, and is moved in the upward direction of the car. A wedge that engages with the car, a push-up rod that moves the wedge in the upward direction of the car, and a speed governor rope disposed along the hoistway are connected, and the speed governor rope is connected to the underframe. It is characterized by comprising a link mechanism for transmitting relative movement of the machine rope and movement in the same direction to the push-up rod, and the link mechanism is installed so as to be positioned in the downward direction relative to the wedge of the underframe. Emergency stop device for diagonal elevators.