JPH0524070B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a door opening/closing engagement device for a diagonal elevator.

[Conventional technology]

As shown in FIGS. 1 to 5, a conventional oblique elevator ascends and descends in a hoistway 1 having an inclination angle along the inclination. A hoisting machine 3 is installed in a machine room 2 at the top of the hoistway, and a wire rope 5 is wound around this hoisting machine 3, and the direction is changed by a sheave 4 to suspend the machine. A counterweight 10 is connected to a trolley 7 that moves along the . The running wheels 11 of the bogie 7 run on the upper surface of the upper flange of the H-shaped steel guide rail 6 installed on the floor of the hoistway 1, and the running wheels 12 of the counterweight 10 run on the inner surface of the lower flange. do.

A car 8 is installed horizontally on the cart 7 which runs on the inclined hoistway 1, and its entrance/exit 9 is also provided horizontally.

On the other hand, the opening/closing engagement mechanisms for the car side door 13 and the landing side door (not shown) are driven by the same door opening/closing engagement device as in the vertical elevator. Its structure is as shown in Figs. 3 to 5.
A door show 14 is provided at the bottom of the car door 3, and a hanger 15 is provided at the top.A rail 16 that horizontally guides the hanger 15 allows the car side door 13 to be moved in the horizontal direction. Reference numeral 17 denotes a car frame, on which a motor 18 is installed, and transmits rotational force via a chain 20 to a chain sprocket 19 installed nearby. 21 is a link whose upper part is rotatably supported by the car frame 17 through a shaft 22;
One end of a lever 23 is rotatably connected slightly below the shaft 22. The other end of the lever 23 is rotatably connected to the chain sprocket 19. Moreover, the other end of a small link 24 whose one end is rotatably connected to the car side door 13 is rotatably connected to the lower end of the link 21.

Next, in order to clamp the engagement roller 25 that protrudes from the landing side door toward the car side door 13,
A fixed engagement piece 26 and a movable engagement piece 27 are provided on the car side door 13. The movable engagement piece 27 is
One side of the pair of parallel links 28a, 28b is connected to the shaft 29
and connect the other side to the hanger 15 through the shaft 2.
Attach via 9a. The fixed engagement piece 26 and the movable engagement piece 27 are provided so as to be parallel to the up-and-down direction of the guide rail 6, or in other words, the elevator car 8.

A link drive roller 30 is rotatably provided at a fulcrum 29 between the parallel link 28a and the movable engagement piece 27 to move the movable engagement piece 27 closer to or away from the fixed engagement piece 26. This is done by driving. This link drive roller 30
is driven by installing a cam 31 on the car frame 17, which is formed by an inclined surface 31a and horizontal surfaces continuous on both sides thereof. That is, when the link drive roller 30 passes through the inclined surface 31a as the car side door 13 moves, it changes its position in the vertical direction, and this change causes the parallel link 28a to
is driven to move the movable engagement piece 27.

[Problem to be solved by the invention]

In the above configuration, the movable engagement piece 27 when the door is closed.
No consideration is given to smooth driving of the movable engagement piece 27, and there is a problem in that the movement of the movable engagement piece 27 is stopped.

That is, as shown in FIG. 6, when the link drive roller 30 hits the inclined surface 31a of the cam 31 at a right angle when the door is closed, the direction of the reaction force F is directed toward the parallel link 2.
A shaft 29a that coincides with the longitudinal direction of 8a and has a reaction force Fa equal to this reaction force F, which serves as a supporting axis of the parallel link 28a.
occurs, stopping the movement of the parallel link 28a.
Therefore, the car side door 13 cannot be closed, making it impossible for the car 8 to move up and down.

An object of the present invention is to provide a door opening/closing engagement device for a diagonal elevator that can smoothly drive a movable engagement piece when the door is closed.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an engagement roller provided on a landing side door, and a fixed engagement piece provided on the car side door that clamps the engagement roller. a movable engagement piece, a pair of parallel links that pivotally support the movable engagement piece on the car side door, a link drive roller that is pivotally supported on the parallel links, and a movable engagement piece that is rotated by the opening/closing operation of the car side door. A cam mechanism provided on the fixed member of the car, which has an inclined surface for displacing the drive roller in the vertical direction and a horizontal surface following the inclined surface, and the movable engagement piece is moved to one side of the fixed engagement when the door is opened. In the door opening/closing device for a diagonal elevator configured to separate from one side of the fixed engagement on the closed end side, when the movable engagement piece is separated from the one side of the fixed engagement, the movable engagement piece is moved parallel to the link drive roller. The extension line connecting the support shafts of the links is arranged so as to be inclined with respect to the inclined surface of the cam mechanism.

[Effect]

With the above configuration, even if the link drive roller hits the inclined surface of the cam when the door is closed, the direction of the reaction force will not coincide with the longitudinal direction of the parallel link, so the movement of the parallel link will not be hindered.
This allows the movable engagement piece to be driven smoothly.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 7-9. Since the same reference numerals as in FIGS. 1 to 6 indicate the same members, detailed explanation will be omitted. The feature of this embodiment is that a small link 32 of the pair of parallel links 28a and 28b projects at right angles to the parallel link 28a, and a link drive roller 30 is pivotally supported at the projecting end.

According to the above configuration, the link drive roller 30
Since the extension line connecting the shaft 29a, which is the support shaft of the parallel link 28a, is inclined with respect to the inclined surface 31a of the cam 31, when the door is closed, the link driving roller 30 hits the inclined surface 31a of the cam 31, and a reaction force is generated. Even if F occurs, the reaction force F will be applied to each axis 29 of the parallel link 28a.
A line connecting a and 29b, in other words, parallel link 2
It acts on a position L dimension away from the outside of the longitudinal extension line of 8a. Therefore, a moment M equal to reaction force F×dimension L is generated with respect to the shaft 29a serving as the supporting shaft.
This moment M causes the parallel link 28a to move toward the shaft 2.
It can rotate about 9a as a fulcrum and move the movable engagement piece 27 connected thereto.

As a result of the above, the door closing operation is performed smoothly.
At the door closing end side, the engagement roller 25 is connected to the fixed engagement piece 26
The grip between the movable engaging piece 27 and the movable engaging piece 27 is released, and the car can depart.

By the way, in the above embodiment, the small link 32 projects at right angles to the parallel link 28a, but the invention is not limited to this. It is sufficient that the extension line connecting the driving roller 30 is inclined with respect to the inclined surface 31a of the cam 31 so that the parallel link 28a can be driven.

〔Effect of the invention〕

As described above, according to the present invention, it is possible to obtain a door opening/closing engagement device for a diagonal elevator that can smoothly drive a movable engagement piece when the door is closed.

[Brief explanation of the drawing]

Figure 1 is a side view showing an outline of a general diagonal elevator, Figure 2 is an enlarged sectional view along the line shown in Figure 1, Figure 3 is a front view of the door opening/closing mechanism as seen from the hoistway side, and Figure 4. 3 is an enlarged front view of section A in FIG. 3 showing the conventional door opening/closing engagement device for a diagonal elevator when the door is closed, FIG. 5 is a front view of the same device when the door is open, and FIG. FIG. 7 is a front view of an embodiment of the door opening/closing engagement device for a skew elevator according to the present invention when the door is closed, FIG. 8 is a front view of the same device when the door is open, and FIG. The figure is a schematic diagram of FIG. 26... Fixed engagement piece, 27... Movable engagement piece, 2
8a...parallel link, 29a...shaft, 30...cam, 31a...inclined surface, 32...small link.

Claims (1)

[Claims] 1. An engagement roller provided on the landing side door, a fixed engagement piece and a movable engagement piece provided on the car side door that sandwich the engagement roller, and the movable engagement piece is pivoted to the car side door. a pair of supporting parallel links; a link drive roller pivotally supported by the parallel links;
A cam mechanism provided on a fixing member of the car, which has an inclined surface that displaces the link drive roller in the vertical direction when the car side door opens and closes, and a horizontal surface that follows the slope, and a movable engagement piece that moves the movable engagement piece when the door is opened. In the door opening/closing engagement device for a diagonal elevator, the movable engagement piece is moved to one side of the fixed engagement and separated from the one side of the fixed engagement at a closed end of the door. A door opening/closing engagement device for a diagonal elevator, characterized in that an extension line connecting the link drive roller and the support shaft of the parallel link is arranged so as to be inclined with respect to an inclined surface of the cam mechanism. .