JP2002145558A - Elevator car device dedicated for small cargo - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator car device exclusive for, small cargo for eliminating the deficiency of making a cargo handler uncomfortable when the elevator car is abnormally moved up/down during the handling of the cargo in the car. SOLUTION: A door device 4 for opening/closing the entrance/exit is mounted on the car 2 moving up/down along the passage guided by a guide rail 1. A brake block 19 of a brake mechanism 9 mounted on the car 2 is held normally at the non-operation position, and the brake block 19 is displaced to the operation position adjacent to the guide rail 1 when the door is opened by the door device 4. Then, when the car 2 is abnormally moved/displaced up or down, the brake block 19 is engaged with the guide rail 1 and the displacement is braked. When the car 2 is stopped at the entrance/exist with the door device 4 being released and the cab 2 is abnormally moved up or down because of the slippage of the brake of a hoist etc., while baggage is being carried into the car 2, the brake block 19 is engaged with the guide rail 1 and the abnormal displacement of the car 2 is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a car device for an elevator dedicated to small luggage in which a car is driven up and down by friction between a main rope and a drive sheave around which the main rope is wound.

[0002]

2. Description of the Related Art FIG. 5 is a view showing a conventional car apparatus for a small-sized baggage elevator, and is a longitudinal sectional view conceptually showing the structure of the elevator. In the drawing, reference numeral 1 denotes a guide rail set up on a hoistway of an elevator, 2 denotes a car which moves up and down the hoistway, and a guide 3 mounted on the upper and lower parts and movably engaged with the guide rail 1; A door device 4 composed of a vertically sliding door that opens and closes is provided.

[0003] Reference numeral 5 denotes a hoisting machine installed above the hoistway.
A drive sheave 6 and a brake 7 are provided. Reference numeral 8 denotes a main rope wound around the drive sheave 6, the car 2 being connected to one end, and a counterweight (not shown) connected to the other end.

[0004] The conventional elevator car apparatus for exclusive use of a small luggage is constructed as described above. When the hoisting machine 5 is energized, the drive sheave 6 rotates and the main rope 8 is driven by frictional force. Then, when the car 2 moves up and down and stops at a doorway (not shown) provided in the hoistway, the door device 4 is opened and the load is carried into the car 2 or the load is carried out from the car 2.

[0005]

In the above-mentioned conventional elevator car device for exclusive use of a small luggage, the door device 4 of the stopped car 2 is opened to carry the luggage to the car 2 when the luggage is carried into the car 2. A slip may occur in the brake 7 or the like between the main rope 6 and the main rope 8, and the car 2 may move up and down unexpectedly. In such a case, there is a problem that the abnormal handling of the stopped car 2 gives a sense of anxiety to the cargo handler.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide a car device for a small-size baggage elevator in which a car does not move up and down abnormally while handling the car.

[0007]

According to the present invention, there is provided a car apparatus for an elevator for exclusive use of a small luggage, which is provided on a car, which is guided by a guide rail to ascend and descend, and a door device for opening and closing an entrance of the car. Normally held in the non-operating position, displaced to the operating position close to the guide rail through the door opening movement of the door device, and engages with the guide rail when the car abnormally moves up and down to brake abnormal car vertical displacement. A braking mechanism is provided.

Further, in the car apparatus of the elevator for exclusive use of a small baggage according to the present invention, an abnormal ascending and descending movement detection in which a detection wheel is pressed against a guide surface of a guide rail by a displacement of an operating position of a brake piece of a braking mechanism provided in the car. And an abnormality alarm device that is energized through the rolling of the detection wheel in the initial stage of the abnormal movement of the car.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 to 4 are views showing an example of an embodiment of the present invention. FIG. 1 is a side view,
2 is a plan view of FIG. 1, FIG. 3 is a view corresponding to FIG. 1 showing an open state of the door device of FIG. 1, and FIG. 4 is a plan view of FIG. Except for FIGS. 1 to 4, the elevator is configured in the same manner as in FIG. 5 described above. In the figure, 1 is a guide rail set up on a hoistway of an elevator, and 2 is a car that moves up and down the hoistway.
A guide device 3 mounted on the upper and lower portions and movably engaged with the guide rail 1 and a door device 4 including a vertical sliding door for opening and closing an entrance are provided.

Reference numeral 9 denotes a braking mechanism provided at a lower portion of the car 2, and a support plate 10 provided at the center of the lower surface of the entrance / exit side edge of the car 2 in the frontage direction of the car 2 and arranged to protrude downward.
Guide rails 1 on both sides extending downward from the lower surface of the car 2
Mounting plate 11, mounting plate 11 provided to face each other
, The holding member 12 and the holding member 1 which are provided to form a gap in the guide surface of the guide rail 1 on the support plate 10 side and are opposed to each other.
2, a through hole 13 is provided which is orthogonal to the guide surface of the guide rail 1 opposed to the guide rail 1.

The braking mechanism 9 has an inclined surface 14 formed at each of the vertical edges of the through hole 13 and whose vertical end is inclined in a direction approaching the guide surface of the guide rail 1. A fixed body 15 is provided on the plate 11 and faces the guide surface of the guide rail 1 on the side opposite to the support plate 10 to form a gap, and the fixed body 15 is arranged to face the holding body 12. Actuating bodies 16 are formed and inserted, are branched to both sides in the frontage direction of the car 2, form voids in the through holes 13 of the holder 12, and are respectively inserted.

The braking mechanism 9 includes a spring receiving member 1 fixed to the operating body 16 and arranged away from the holding body 12.
7. A roller 18 is provided, which is pivotally attached to the projecting end of the support plate 10 of the operating body 16 on the side opposite to the guide rail 1 by a horizontal axis and is pressed by the back surface of the opened door of the door device 4.

The brake mechanism 9 includes a brake piece 19 composed of a roller connected to the end of the holding body 12 of the operating body 16 on the side of the through hole 13 and opposed to the inclined surface 14.
6, a biasing body 20 composed of a compression coil spring disposed between the spring receiving member 17 and the holding body 12, and the mounting plate 11
An abnormal ascending and descending movement detector 21 composed of a switch for pressing a detection wheel forming an operating portion against the guide surface of the guide rail 1 by a brake piece 19 provided in the guide rail 1 and displaced in the guide surface direction of the guide rail 1 is provided. Reference numeral 22 denotes an abnormality alarm connected to the abnormal vertical movement detector 21.

In the car device for the elevator for exclusive use of the small luggage constructed as described above, similarly to the car device of FIG. 5, when the hoisting machine 5 is energized, the drive sheave 6 rotates to rotate the main rope. 8 is driven by the frictional force. Then, the car 2 moves up and down, and an entrance (not shown) provided in the hoistway.
Then, the door device 4 is opened, and a load is carried into or out of the car 2.

When the door device 4 is closed, the door 1
8, the braking mechanism 9 is disposed at a position away from the operating body 1.
6 is urged by the urging body 20 toward the doorway of the car 2, that is, toward the door device 4. As a result, the braking piece 19 is disposed in contact with the edge of the through hole 13 on the inclined surface 14 of the holding body 12, and the state shown in FIGS. 1 and 2 is obtained. That is,
The operating body 16 and the detection wheel of the abnormal vertical movement detector 21 are arranged at positions separated from the guide surface of the guide rail 1 respectively.

When the car 2 is operated and stops at the entrance provided in the hoistway, the door device 4 is opened.
As a result, the roller 18 of the braking mechanism 9 is pressed by the door of the door device 4 having moved the door open, and is displaced in the direction of the guide rail 1 against the urging force of the urging body 20 so that the braking piece 19 of the guide rail 1 is moved. Pressed against the guide surface. Also, the braking piece 1
The detection wheel of the abnormal vertical movement detector 21 is pressed against the guide surface of the guide rail 1 by the displacement of 9.

Next, when the car 2 stops at the doorway and the door device 4 is opened, and when the cargo is loaded into the car 2 in this state, the space between the drive sheave 6 and the main rope 8, the brake 7, etc. May occur, causing the car 2 to unexpectedly move up and down. In such a case, the detection wheel of the abnormal vertical movement detector 21 rolls on the guide surface of the guide rail 1 at the beginning of the abnormal vertical movement of the car 2. The abnormal alarm 22 is energized by the operation of the detection wheel of the abnormal vertical movement detector 21, and an abnormal vertical displacement of the car 2 is notified by a buzzer sound or the like.

As a result, it is notified that the load carried into the car 2 is overloaded, and the occurrence of an abnormality due to slippage of the brake 7 or the like is notified. For this reason, the user and the manager of the elevator for exclusive use of the small luggage can immediately perform the abnormality occurrence treatment, and the occurrence of the secondary trouble due to the occurrence of the abnormality can be prevented.

Further, since the braking piece 19 of the braking mechanism 9 is pressed against the guide surface of the guide rail 1, the braking piece 19 is moved by the abnormal movement of the car 2 and friction with the guide surface of the guide rail 1. Of the brake piece 19 and the inclined surface 14 of the braking piece 19. The wedge action caused by the engagement of the brake pieces 19 causes the abnormal lifting and lowering displacement of the car 2 to be braked and stopped. Therefore, it is possible to eliminate the problem that the car 2 abnormally moves up and down and gives a sense of anxiety to the loader.

[0020]

As described above, according to the present invention, a car which is guided by a guide rail, ascends and descends, a door device which opens and closes the entrance of this car, and which is provided in the car and is always held at a non-operation position, And a braking mechanism that is displaced to an operation position close to the guide rail through the door opening movement of the door device and engages with the guide rail when the car is abnormally moved up and down to brake the abnormally raised and lowered displacement of the car. .

In the car device configured as described above,
In the state where the car stops at the entrance of the hoistway and the door device is opened, when the load is carried into the car, the car may unexpectedly move up and down due to a slip of the brake of the hoisting machine or the like. In this case, since the brake piece of the braking mechanism is pressed against the guide surface of the guide rail via the door opening movement of the door device, the brake piece is engaged with the guide rail, and the abnormal vertical displacement of the car is braked. . For this reason, there is an effect of eliminating a problem in which the car is abnormally moved up and down and gives the cargo handler an uneasy feeling.

Further, as described above, the present invention provides an abnormal ascending and descending movement detector in which a detection wheel is pressed against a guide surface of a guide rail by a displacement of an operating position of a braking piece of a braking mechanism provided on a car; An abnormality alarm device is provided which is energized through the rolling of the detection wheel at the beginning of the abnormal elevating movement.

In the car device configured as described above,
The detection wheel of the abnormal vertical movement detector rolls on the guide surface of the guide rail at the beginning of the abnormal vertical movement of the car, whereby the abnormal alarm is energized and the abnormal vertical displacement of the car is notified. As a result, it is notified that the load carried into the car is overloaded, and an occurrence of an abnormality such as a brake of the hoist is notified. Therefore, users of elevators for small luggage only,
The administrator can immediately take measures corresponding to the occurrence of the abnormality, which has the effect of preventing the occurrence of secondary inconvenience due to the occurrence of the abnormality.

[Brief description of the drawings]

FIG. 1 is a side view showing Embodiment 1 of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a view corresponding to FIG. 1, showing an open state of the door device of FIG. 1;

FIG. 4 is a plan view of FIG. 3;

FIG. 5 is a longitudinal sectional view conceptually showing a structure of the elevator, which is a view showing a conventional car device of the elevator for exclusive use of small luggage.

[Explanation of symbols]

1 guide rail, 2 cars, 4 door device, 9 braking mechanism, 21 abnormal vertical movement detector, 22 abnormal alarm.

Claims (2)

[Claims] 1. A car which is guided by a guide rail to move up and down, a door device which opens and closes the entrance of the car, and a door device which is provided in the car and is always held at a non-operating position to open and close the door device. A cage mechanism for a dedicated elevator for small packages, comprising: a braking mechanism that is displaced to an operating position close to the guide rail via the guide rail and engages with the guide rail when the car is abnormally moved up and down. 2. An abnormal lifting / lowering movement detector provided in a car, wherein a detecting wheel is pressed against a guide surface of a guide rail by an operation position displacement of a braking piece of a braking mechanism, and the detecting wheel in an early stage of the abnormal raising / lowering movement of the car. The elevator apparatus for a small-sized baggage elevator according to claim 1, further comprising an abnormality alarm that is activated through the rolling of the elevator.