JPH0532387A - Door engaging device for oblique elevator - Google Patents

Abstract

PURPOSE:To provide a door engaging device capable of surely engaging a cage door with a hall door and smoothly opening and closing the door even in the case of an oblique elevator having a small angle of inclination of a lift path. CONSTITUTION:A cage is provided with a pivotable engaging piece 38. A movable engaging plate 62 is in the lifted position when a door 13 of the cage is closed, and the engaging piece 38 is in the condition of having the same angle of inclination as that of a lift path (shown by the two-dot chain line). When the door begins to be opened, the movable engaging plate 62 is lowered to push down a roller 66 of the engaging piece 38 and rotate the engaging piece 38 by an angle beta about a shaft 65a counterclockwise. Thus, a clamping roller 45 of a lock device 44 on a platform is pushed to rotate the lock device 44 counterclockwise and disengage a lock section 46 from an engaging section 42 so that a hall door interlocked with the door 13 of the cage is also opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a door engaging device for an oblique elevator that engages a car door and a landing door in conjunction with each other to open and close the doors.

[0002]

2. Description of the Related Art A conventional door engaging device for a skew elevator will be described with reference to the drawings. 4 is an overall schematic view of the oblique elevator, FIG. 5 is a sectional view taken along line XX of FIG. 4, FIG. 6 is an overall front view of a car-side door of the oblique elevator, and FIG. FIG.

In the figure, 1 is a hoistway inclined by an angle α with respect to a horizontal plane, 2 is a machine room, 3 is one end fixed to a carriage 5 of a car 4, a guide wheel 6, and a sheave 8 of a hoisting machine 7. The main rope, the other end of which is fixed to the counterweight 9 via the guide wheel 6, is a guide rail having an H-shaped cross section. Reference numeral 11 is a traveling wheel of the car 4 attached to the carriage 5, and 12 is a traveling wheel of the counterweight 9, which travel on the guide rails 10, respectively. Reference numeral 13 is a car door, and 14 is a hall door installed in the hall 15.

Reference numeral 20 is a vertical frame provided on a car floor 21, and 22 is a vertical frame.
Is an upper beam, 23 is a support frame fixed to the vertical frame 20, 24 is a hanger rail fixed to the support frame 23, 25 is fixed to the upper end of the car door 13, and the car door 13 is left and right along the hanger rail 24. The door hanger 26 to be moved is an arm fixed to the door hanger 25.

Reference numeral 30 is a door motor installed on the support frame 23, and 31 is a pulley, which is interlocked with the door motor 30 by a V-belt 32. Reference numeral 33 is a small sprocket wheel mounted coaxially with the pulley 31, 34 is a large sprocket wheel that is interlocked with the small sprocket wheel 33 by a chain 35, and 36 is a crank fixed to the large sprocket wheel 34 and rotates with the large sprocket wheel 34. To do. 37A is a lever whose one end is axially attached to one end of the crank 36 and the other end is axially attached to one arm 26, and 37B is one end whose crank 36 is attached.
Is a lever that is pivotally attached to the other end of the lever and the other end is pivotally attached to the other arm 26. Reference numeral 38 denotes an engaging piece which is inclined with respect to the horizontal plane by the same inclination angle α as that of the hoistway 1, and a bracket 39
It is fixed to the car door 13 by.

Reference numeral 40 denotes a switch box in which a switch 41 is built in and is fixed to the hall, 42 denotes an engaging portion formed of a part of an outer frame of the switch box 40, 43 denotes a door hanger of the hall door 14, and 44 denotes an axis. 44a is a lock device axially attached to the door hanger 43, and 45 is a lock device 4
4 is a gripping roller mounted on the shaft 4, 46 is a lock portion that is a part of the lock device 44, and 47 is a contact point that is fixed to the lock portion 46. When the door is closed, as shown in FIG.
6 and the engaging portion 42 are engaged with each other. Reference numeral 50 denotes a gripping device pivotally mounted on the hall door 14 by a shaft 50a, 51 denotes a gripping roller pivotally mounted to the gripping device 50, and 52 denotes a gripping device 50 biased clockwise about the shaft 50a in FIG. A tension spring 53 is a stopper roller axially attached to a bracket 54 fixed to the landing.

The operation of this conventional door engaging device will be described. When the car 4 lands on the landing, the engagement piece 38 comes between the gripping rollers 45 and 51, as shown by the chain double-dashed line in FIG. 7. At this time, a gap g is preset between the engagement piece 38 and each of the gripping rollers 45, 51. When the door opens, the door motor 30 causes the pulley 31
The large sprocket wheel 34 rotates in the clockwise direction in FIG. As a result, the crank 36 and the lever 3
The car door 13 is opened via 7A and 37B and the arm 26.

With the opening operation of the car door 13, the engaging piece 3
8 moves to the left in FIG. 7, pushes the gripping roller 45,
The lock device 44 is rotated counterclockwise about the shaft 44a to release the engagement between the lock portion 46 and the engagement portion 42. Then, when the hall door 14 starts to open, the gripping device 50 separates from the stopper roller 53, and the spring 52 causes the shaft 50a to move.
Rotate clockwise around. As a result, the gripping roller 51 rises and comes into contact with the engaging piece 38. That is, the engagement piece 38 is gripped by the gripping rollers 45 and 51. In this state, the car door 13 and the hall door 14 open together. The opposite is true when closing.

[0009]

As described above, since the oblique elevator is inclined by the angle α with respect to the horizontal plane, g / sinα is required for the engaging piece 38 to come into contact with the gripping roller 45 when the door is opened. Only the car door 13 must open. Further, in order to release the engagement between the engaging portion 42 and the lock portion 46, the car door 13 must be further opened. Therefore, the landing door 14 is opened after the car door 13 is opened considerably.

If the deviation between the car door 13 and the landing door 14 becomes large, it is not preferable in terms of design and safety. Further, this deviation becomes larger as the inclination angle α becomes smaller, which becomes a more serious problem in the oblique elevator having the small inclination angle α. Also,
If the gap g is reduced to solve this problem, it becomes very difficult to adjust the gap g at the time of installation, and the engagement piece 38 is likely to hit the gripping rollers 45, 51 when the car 4 is running. Therefore, there is a limit to reducing the gap g.

Further, when the inclination angle α becomes smaller, when the engagement piece 38 pushes the gripping roller 45 in the door opening direction, the pushing force becomes stronger not only in the horizontal direction but also in the vertical direction. Therefore, it becomes difficult for the lock device 44 to rotate around the shaft 44a smoothly, and the landing door 14 begins to open before the lock portion 46 and the engagement portion 42 are completely disengaged, and the lock portion There is a possibility that 46 may be caught in the engaging portion 42.

When the inclination angle α becomes smaller and the vertical pressing force on the gripping roller 45 becomes stronger, the hall door 1
There arises a problem that it becomes difficult to smoothly transmit the driving force for opening 4. Generally, when the inclination angle α becomes 30 ° or less, it becomes difficult to transmit the driving force, and the inclination angle α becomes 20 degrees.
When it becomes less than °, it becomes almost impossible to use.
The present invention has been made to solve the above problems, and even when the inclination angle α of the hoistway 1 is small, the gap g
It is an object of the present invention to provide a door engaging device for an oblique elevator, which is capable of achieving a large size and smoothly transmitting the driving force to the hall door 14.

[0013]

According to the present invention, an engaging piece is constructed so as to be rotatable, the inclination angle of the engaging piece is normally kept the same as the inclination angle α of a hoistway, and the engaging piece is connected to a landing door. At the time of engagement, this inclination angle is increased.

[0014]

An embodiment of the present invention will be described with reference to the drawings. Figure 1
2 is an operation explanatory view of the present embodiment, FIG. 2 is an overall front view of a car side door of an oblique elevator, a view corresponding to FIG. 6, and FIG. 3 is FIG.
FIG. Further, since the engagement device on the hall door side is the same as that of the conventional device shown in FIG. 7, it will be described with reference to FIG.

In the figure, 60 is a base fixed to the car door 13, 61 is a fixed engagement plate fixed to the base 60, and 62 is a movable engagement plate supported by parallel links 63 and 64. 64 is a shaft 63a, 6
4a is pivotally attached to the movable engagement plate 62, and the shaft 6
It is pivotally attached to the base 60 by 3b and 64b. 65
Is a bracket fixed to the fixed engagement plate 61, and the shaft 6
The engagement piece 38 is pivotally attached by 5a. Reference numeral 66 is a roller pivotally attached to the engaging piece 38. 67 is a fixed engagement plate 6
1 is a tension spring provided between the engaging piece 3 and the engaging piece 38, and presses the roller 66 against the movable engaging plate 62,
8 is held in the state of FIG.

Reference numeral 70 denotes a bracket fixed to the movable engaging plate 62, which has an elongated hole 71. Reference numeral 72 denotes a bell crank pivotally mounted on the fixed engagement plate 61 by a shaft 72a, a roller 73 is pivotally mounted at one end, and a pin 74 inserted into the elongated hole 71 is provided upright at the other end. .. A stopper 75 is fixed to the support frame 23. The same reference numerals as those in FIGS. 6 and 7 indicate the same elements.

With the car door 13 closed, FIG.
Since the roller 73 is in contact with the stopper 75 as shown in FIG. 5, the bell crank 72 holds the movable engagement plate 62 in the raised position. In this state, the car 4 travels, passes the landing, and stops landing at the landing while maintaining a gap g between the car 4 and the gripping rollers 45, 51.

When the door is opened, the large sprocket wheel 3 is moved by the door motor 30 via the pulley 31 and the like.
4 rotates clockwise in FIG. As a result, via the crank 36, the levers 37A and 37B, and the arm 26,
The car door 13 opens. When the car door 13 starts to open, the roller 73 starts to separate from the stopper 75, so that the movable engagement plate 62 descends due to its own weight. Therefore, the roller 66 is pushed by the movable engagement plate 62, and the engagement piece 38 rotates about the shaft 65a in the counterclockwise direction in FIGS. At the same time, the engaging piece 38 also grips the roller 45 by the distance the car door 13 is opened.
Approach.

When the roller 73 is completely separated from the stopper 75, as shown by the solid line in FIG.
Rotate counterclockwise by angle β around. As a result, the engagement piece 38 pushes the gripping roller 45 to the left in FIG. 1, and the engagement between the lock portion 46 and the engagement portion 42 is released.

When the landing door 14 starts to open, the gripping device 50 separates from the stopper roller 53 and rotates clockwise about the shaft 50a by the spring 52, as described with reference to FIG. As a result, the gripping roller 51 rises and comes into contact with the engagement piece 38, and the engagement pieces 38 are gripped from both sides by the gripping rollers 45, 51, and the car door 13 and the landing door 14 open together. The opposite is true when closing. Since the links 63 and 64 are horizontal when the movable engagement plate 62 descends, the landing door 1 is opened through the gripping roller 45, the engagement piece 38, and the roller 66 when the door is opened.
The movable engagement plate 62 does not swing even if it receives a reaction force from No. 4.

As described above, according to this embodiment, only when the car door 13 is opened for a short distance until the roller 73 is separated from the stopper 75, the engagement piece 38 is rotated to engage with the lock portion 46. Since the engagement with the joint portion 42 is completely released, it is possible to minimize the deviation between the car door 13 and the landing door 14 when the door is opened and closed, and the lock portion 46 may be caught by the engagement portion 42. Disappear. Further, since the engagement piece 38 is configured to be rotatable, the gap g can be made larger than in the conventional case, and therefore, the gap g at the time of installation can be easily adjusted, and the engagement piece 38 can be used when the car 4 is running. There is no possibility that 38 will hit the gripping rollers 45, 51.

Further, since the engaging piece 38 engages with the engaging device of the hall at the angle of α + β, the driving force for opening the hall door 14 is not transmitted even if the inclination angle α of the hoistway 1 becomes small. It will be done smoothly. Further, the angle β can be changed by changing the mounting position of the roller 66 on the engagement piece 38. Although the movable engaging plate 62 is lowered by its own weight when the door is opened in the above description, it may be forcedly lowered by using a spring.

In the above embodiment, the opening / closing operation of the car door 13 causes the engaging piece 38 to rotate through the movable engaging plate 62, the bell crank 72, the stopper 75, etc., and engages with the door drive device. Although not directly interlocked with the piece 38, the engagement piece 38 may be rotated in conjunction with the operation of the door driving device.

[0024]

As described above, according to the present invention,
Even when the inclination angle of the hoistway of the oblique elevator is small, the lock of the landing door can be completely unlocked, and the distance between the engagement device of the car door and the landing door can be widened to ensure a smooth door. It is possible to provide a door engaging device for a skew elevator that can be opened and closed.

[Brief description of drawings]

FIG. 1 is an operation explanatory diagram of an embodiment of the present invention.

FIG. 2 is an overall front view of a car side door of a skew elevator showing an embodiment of the present invention.

FIG. 3 is a detailed view of a main part of FIG.

FIG. 4 is an overall schematic view of a skew elevator.

5 is a sectional view taken along line XX of FIG.

FIG. 6 is an overall front view of a car side door of a conventional skew elevator.

FIG. 7 is a front view of a main part of a landing side door of a skew elevator.

[Explanation of symbols]

 1 Hoistway 4 Car 13 Car door 14 Landing door 38 Engagement piece 45, 51 Gripping roller 50 Gripping device 61 Fixed engaging plate 62 Movable engaging plate 72 Bell crank 75 Stopper

Claims (1)

Claims: 1. A car traveling in an inclined hoistway,
A car-side door engaging device having an engaging piece held so as to have the same inclination angle as the inclination of the hoistway is provided at all times, and the engaging piece is inserted at a predetermined interval in the landing on each floor. In a diagonal elevator that is provided with a landing side door engaging device and engages both of the door engaging devices to open and close the car door and the landing door in conjunction with each other, the engaging piece is interlocked with the opening operation of the car door. Is provided with a mechanism for increasing the inclination angle of the door.