JP5875465B2 - elevator - Google Patents

Description

  The present invention relates to an elevator having a function of mechanically preventing a car from moving up and down when the door is opened.

In Patent Document 1, when the car arrives at the landing and the door is open from the start of the door opening operation to the door closing operation, the departure preventing means protrudes from the storage position to the landing side, and a part of the landing is on the projection surface. An elevator start prevention device is described which is positioned so as to overlap the components.
Further, in Patent Document 2, a car door cam is provided at an end portion of a car door on the door bag side, and a stopper is displaced by a car door cam engaging member and a transmission member that are engaged with the car door cam. There is described an elevator car position holding device that can hold a car at a landing floor position immediately after the door opening operation is started and immediately before the door closing operation is ended even when the braking force of the machine brake is reduced.

JP 2008-201494 A JP 2009-203068 A

The above Patent Documents 1 and 2 have a structure in which the car does not move up and down in the door open state from the start of the door open operation to the door close operation.
However, in the above-mentioned Patent Document 1, the starting prevention means operates in conjunction with the link mechanism connected to the movable vane of the door closing engagement device, which is expensive because the device becomes large. There was a problem.
Moreover, the thing of the said patent document 2 is equipped with an engaging member, a stopper, a biasing means, a door cam, a door cam engaging member, and a transmission member, and since the apparatus becomes large like the said patent document 1, it is expensive. There was a problem of becoming.

  An object of the present invention is to solve such a problem, and an elevator that has a simple configuration and can be provided at a low cost with a function of mechanically preventing the car from moving up and down when the door is opened. The purpose is to obtain.

The elevator according to the present invention is provided at the upper part of the doorway of the car so as to be rotatable about the fulcrum of the upper end part and has a bent part at the lower end part,
A horizontal cam attached to the car side surface of the car side cover and extending horizontally;
A roller rotatably mounted on a car door hanger attached to the upper edge of the car side door;
Attached to the upper part of the entrance / exit of the hall and provided at the lower end with a landing side cover having a recess opened on the car side cover side ,
As the car side door opens, the roller rolls on the horizontal cam to rotate the car side cover around the fulcrum, so that the bent part faces the recess. Let
The car door hanger is provided with a roller moving means for moving the roller in the vertical direction by a key operation,
The roller moving means is a roller support plate that is attached to the roller and is movable up and down, and is connected to a lower end portion of the roller support plate and moves in the horizontal direction in conjunction with the operation of the key. And a support plate that moves the plate in the vertical direction.

  According to the elevator according to the present invention, as the car side door opens, the roller rolls on the horizontal cam so that the car side cover is rotated around the fulcrum and the car side cover is bent. Can be provided at a low cost with a simple structure that mechanically prevents the car from moving up and down when the door is opened.

It is a sectional side view which shows the elevator of Embodiment 1 of this invention. It is arrow sectional drawing along the AA line of FIG. It is a principal part enlarged view which shows the elevator of FIG. It is a principal part enlarged view which shows the elevator of FIG. 3, Comprising: It is a figure in door opening operation | movement. It is a principal part perspective view of FIG. It is an enlarged view which shows the site | part of B of FIG. 7A is a side sectional view showing the roller moving means of FIG. 6, and FIG. 7B is a front view of FIG. 7A. FIG. 8A is a side sectional view showing how the roller moving means is used, and FIG. 8B is a front view of FIG. 8A.

Embodiment 1 FIG.
Hereinafter, an outdoor elevator according to an embodiment of the present invention will be described with reference to the drawings.
1 is a side sectional view showing the configuration of an outdoor elevator according to Embodiment 1 of the present invention, and FIG. 2 is a sectional view taken along line AA in FIG.
In the drawing, an elevator car that moves up and down in the hoistway wall 15 includes a car room 2 and a car frame 1 a that supports the car room 2.
In the car room 2 in which the car operation panel 3 is disposed, a car-side sill 11 is provided on the car frame 1 on the platform frame 5 side. The car-side sill 11 is provided with a pair of car-side doors 4 that are gateways of the car room 2 and move along a groove.
Opposite the car-side sill 11, a landing-side sill 12 is provided on the landing side. In this landing side sill 12, a pair of landing side doors 6 move in the left-right direction along the groove.
The car side door 4 is electrically opened and closed in conjunction with the landing side door 6. An opening / closing device (not shown) for opening and closing the door is provided on the car side, and is interlocked by a mechanical engagement device (not shown) provided therebetween.

3 is an enlarged view of the main part of the outdoor elevator of FIG. 1, FIG. 4 is an enlarged view of the main part showing the outdoor elevator of FIG. 3, and FIG. 5 is a view when the car side door 4 is open, and FIG. It is a perspective view.
A landing door hanger 13 with a roller is attached to the upper edge of each landing side door 6. The landing door hanger 13 reciprocates as the hanger roller 13 a rolls on the landing-side rail 14 fixed to the landing door hanger case 7.
The landing door hanger case 7 has a landing-side cover 7a fixed at the upper end. The landing-side cover 7a extends to the left and right beyond the full width of the opening of the car doorway, and has a recess 7b whose cross section is bent in a U shape at the lower end.

A car door hanger 10 with a hanger roller 10 c is attached to the upper edge of each car side door 4. The car door hanger 10 reciprocates as the hanger roller 10 c rolls on the car-side rail 9 fixed to the door closing girder 8.
An escape hole 10 d is formed in one of the pair of car door hangers 10. The car door hanger 10 is attached with a shaft 10b extending across the escape hole 10d in the vertical direction. The shaft 10b is rotatably provided with a roller 10a that partially faces the escape hole 10d.

A pin support arm 8c is provided at the end of the door closing girder 8 on the landing side. A car-side cover 8a having an L-shaped cross section that is rotatable around a pin 8b that is a fulcrum is suspended from an end of the pin support arm 8c. The car-side cover 8a extends right and left beyond the full width of the opening of the car doorway, and has a rain gutter 8e that is a bent portion facing the recess 7b of the landing-side cover 7a at the lower end. Yes.
The rain gutter 8e stands up with its front end bent, and gently tilts along the opening / closing direction of the car side door 4 so as to catch raindrops and allow rainwater to flow down.

  The car-side cover 8a has a spring 8d attached to the upper end portion on the side opposite to the rain gutter 8e. The car-side cover 8a is always urged counterclockwise (FIG. 3) around the pin 8b as a fulcrum by the elastic force of the spring 8d, and comes into contact with the roller 10a attached to the car door hanger 10. Yes.

  A horizontal cam 8f that extends in the horizontal direction and protrudes toward the car side door 4 is fixed to a surface of the car side cover 8a on the car side door 4 side. The height of the horizontal cam 8f is the same as the height of the roller 10a of the car door hanger 10.

6 is an enlarged view showing a portion B in FIG. 5, FIG. 7 (a) is a side sectional view showing the roller moving means in FIG. 6, and FIG. 7 (b) is a front view of FIG. 7 (a).
At the lower corner of the car door hanger 10, roller moving means for moving the roller 10a downward by operating the key 19 is provided.
This roller moving means is attached to the roller 10a and can be moved up and down. The roller moving means is connected to the lower end of the roller support plate 16a and moves in the horizontal direction in conjunction with the operation of the key 19. And a support plate 17 for moving the support plate 16a in the vertical direction.
Guide pins 16b are provided on both upper and lower sides of the roller support plate 16a. A pin 16c is attached to the lower end of the roller support plate 16a. The pin 16 c faces the guide hole 17 a of the support plate 17. The guide hole 17a extends in an oblique direction.

Next, operation | movement of the outdoor elevator of the said embodiment is demonstrated.
When the car reaches the destination floor, the car side door 4 is electrically opened and closed in conjunction with the landing side door 6.
As the car side door 4 opens, the roller 10a rolls on the horizontal cam 8f, thereby rotating the car side cover 8a around the pin 8b.
As a result, the rain gutter 8e of the car-side cover 8a faces into the recess 7b of the landing-side cover 7a, and the car cannot be lifted or lowered beyond the vertical gap of the recess 7b.
That is, when the car side door 4 is open, even if the car is going up and down due to a malfunction, for example, the rain gutter 8e is locked in the recess 7b, and the car is mechanically prevented from going up and down.

Further, for example, during maintenance inspection work, the car may have to be raised and lowered with the car side door 4 open.
In this case, the support plate 17 is moved to the left side via the arm 18a protruding from the lock 18 by rotating the lock 18 clockwise using the key 19 (FIG. 7B). With this movement, the pin 16c of the roller support plate 16a moves downward along the guide hole 17a, and the roller support plate 16a moves downward while being guided by the guide pins 16b arranged on both sides. As shown in FIGS. 8A and 8B, the roller 10a also moves downward.
As a result, even if the car side door 4 is open, the roller 10a is lower than the horizontal cam 8f and positioned below the horizontal cam 8f. The car side cover 8a is covered with the landing side cover by the roller 10a. The rain gutter 8e is separated from the recess 7b by the elastic force of the spring 8d without being pushed to the 7a side.
That is, even when the car side door 4 is open, the rain gutter 8e does not face the recess 7b, and the car can be raised and lowered.

According to the outdoor elevator according to this embodiment, the door closing girder 8 which is the upper part of the entrance of the car is provided so as to be rotatable around the pin 8b which is the fulcrum of the upper end part and is bent at the lower end part. A car-side cover 8a having a certain rain gutter 8e, a horizontally extending horizontal cam 8f attached to the car-side surface of the car-side cover 8a, and a car attached to the upper edge of the car-side door 4 A car side door is provided with a roller 10a rotatably provided on the door hanger 10 and a landing side cover 7a which is attached to a landing door hanger case 7 which is an upper part of the entrance / exit of the landing and has a recess 7b at the lower end. 4, the roller 10a rolls on the horizontal cam 8f to rotate the car-side cover 8a around the pin 8b, so that the rain gutter 8e faces the recess 7b. ing
Therefore, when the car side door 4 is open, even if the car is going up and down due to a malfunction, for example, the rain gutter 8e is locked in the recess 7b, and the car is reliably prevented from moving up and down with a simple structure. Can do.

  In addition, in an existing outdoor elevator, when adding a function to prevent the raising and lowering of the car when the door is opened, a new car side cover 8a, a horizontal cam 8f, a roller 10a, and a landing side can be used without significant modification. The cover 7a is used as a main member, and can be handled with simple processing.

Also, the car door hanger 10 is provided with roller moving means for moving the roller 10a in the vertical direction by operating the key 19, and this roller moving means is attached to the roller 10a and can move up and down. And a support plate 17 that is connected to the lower end of the roller support plate 16a and moves the roller support plate 16a in the vertical direction while moving in the horizontal direction in conjunction with the operation of the key 19.
Therefore, for example, when the car must be raised and lowered while the car side door 4 is open during maintenance and inspection work, the function of mechanically preventing the car from being raised and lowered when the door is opened by simple operation of the key 19. Can be released.

The bent portion of the car-side cover 8a is a rain gutter 8e that collects and flows rainwater. When the car side door 4 and the landing side door 6 are open, the entire area above the car doorway is the gutter 8e. Therefore, it is possible to prevent rainwater from falling on passengers getting on and off.
Moreover, since the rain gutter 8e inclines along the opening / closing direction of the car side door 4, rain water flows down the rain gutter 8e and is discharged | emitted smoothly.

In addition, although said embodiment demonstrated the outdoor elevator, of course, this invention is applicable also to the elevator installed in the building.
In this case, the end portion of the car-side cover 8a whose front end portion faces the recessed portion 7b of the landing-side cover 7a does not have to be an upright end portion. In short, it is only necessary that the end faces the recess 7b and is engaged with the recess 7b when the car is raised or lowered to prevent the car from being raised or lowered.
Further, the car-side cover 8a may be rotatably provided at the upper part of the entrance / exit of the car other than the door closing girder 8.
Further, the landing-side cover 7a may also be provided above the entrance / exit of the landing other than the landing door hanger case 7.
Moreover, in the said embodiment, although it was an elevator of the center hinged door of 2 doors, there may be another elevator of a 2 doors single door, a 3 doors single door, or a 4 doors central door, for example.

  1 car floor, 1a car frame, 2 car room, 3 car operation panel, 4 car side door, 5 landing frame, 6 landing side door, 7 landing door hanger case, 7a landing side cover, 7b dent, 8 door closing girder, 8a Car side cover, 8b Pin (fulcrum), 8c Pin support arm, 8d Spring, 8e Rain gutter (folded part), 8f Horizontal cam, 9 Car side rail, 10 Car door hanger, 10a roller, 10b shaft, 10c hanger Roller, 10d escape hole, 11 car side sill, 12 landing side sill, 13 landing door hanger, 13a hanger roller, 14 landing side rail, 15 hoistway wall, 16a roller support plate, 16b guide pin, 16c pin, 17 support plate , 17a Guide hole, 18 locks, 18a arm, 19 keys.

Claims (4)

A car-side cover provided at the upper part of the doorway of the car so as to be rotatable around the fulcrum of the upper end part and having a bent part at the lower end part;
A horizontal cam attached to the car side surface of the car side cover and extending horizontally;
A roller rotatably mounted on a car door hanger attached to the upper edge of the car side door;
Attached to the upper part of the entrance / exit of the hall and provided at the lower end with a landing side cover having a recess opened on the car side cover side ,
As the car side door opens, the roller rolls on the horizontal cam to rotate the car side cover around the fulcrum, so that the bent part faces the recess. Let
The car door hanger is provided with a roller moving means for moving the roller in the vertical direction by a key operation,
The roller moving means is a roller support plate that is attached to the roller and is movable up and down, and is connected to a lower end portion of the roller support plate and moves in the horizontal direction in conjunction with the operation of the key. An elevator comprising a support plate for moving the plate in the vertical direction .   2. The elevator according to claim 1, wherein the bent portion of the car-side cover is a rain gutter that collects and flows down rainwater. The elevator according to claim 2 , wherein the rain gutter is inclined along an opening / closing direction of the car side door. The elevator according to claim 2 or 3 , wherein the elevator is an outdoor elevator.

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