JPS5917032B2 - elevator equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an elevator system provided with a device for reducing the gap between a car and a landing.

When the elevator car lands on the landing, a gap of about 3α is usually formed between the two.

This gap is essential for locating the engagement device that engages the respective doors of the car and landing with each other.

However, there was a problem in which the casters of a wheelchair for a physically handicapped person fell into the gap above and the person with a physical disability was unable to get the wheelchair out.

In contrast, a device is known in which a member for narrowing the gap is moved in conjunction with the opening operation of the car door.

On the other hand, elevators are sometimes operated manually with the car door open for maintenance and inspection purposes, and if the gap reduction member protrudes at this time, it may collide with the engagement device and cause damage. Occur.

This invention solves the above-mentioned drawbacks, and aims to provide an elevator system in which the member that reduces the gap between the car and the landing does not operate even if the car door opens except when the elevator is automatically operating. be.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 7.

In the figure, 1 is a car, 2 is a car door, 3 is a doorway, 1 is an entrance threshold, 4 is a landing threshold, 5 is an opening/closing mechanism for car door 2, and 6 is a car door.
7 is a lever whose middle part is pivotally connected to the heel 1, 7 is a link whose both ends are pivotally connected to one end of the lever 6 and the opening/closing mechanism 5, and 8 is a hanging rod whose upper end is pivotally connected to the other end of the lever 6. 9 is a nut screwed into the lower end of the connecting mechanism 8 and held in a predetermined position; 10 is an angular shape with one side loosely inserted into the lower end of the connecting mechanism 8 and the other side hanging down; The connecting tool 11, which has a pin erected on its lever part, is a presser made of a compression coil spring inserted into the connecting mechanism 8, and both ends are in contact with the connecting tool 10 and the nut 12 screwed into the lower end of the connecting mechanism 8, respectively. They are placed next to each other.

Reference numeral 13 denotes a transmission device consisting of two links, one end of which is pivotally connected to the lower part of the heel 1, and which are spaced apart from each other, and the intermediate portion of one of the links is pivotally connected to a pin of the connector 10.

Reference numeral 14 denotes an auxiliary sill to which the other end of the transmission device 13 is pivotally connected, and its longitudinal axis is arranged along the sill 3.

15 is attached to the lower part of the heel 1, and the operating part is the transmission device 13
a detection device consisting of a switch placed opposite the 16
is a slope formed on the surface of the sill 30 facing the sill 4 and whose lower end is set back from the upper end; 17 is a release device disposed in the middle of the coupling mechanism 8; 17a is an outer cylinder fixed to the lower rod 8a; 17b is a movable element loosely fitted into the outer cylinder 17a, to which the upper rod 8b is fixed, 17c is an engagement groove recessed in this, 17d is inserted into the upper rod 8b, and both ends are connected to the upper surface and outer surface of the movable element 17b. ft117a is a retainer made of a compression coil spring that is in contact with the upper end of each; 17e is the outer cylinder 1;
A box body 17f protruding from the box body 7a is an engagement piece disposed within the box body 17e, penetrating the outer cylinder 17a and engaging with the engagement groove 17c, and has a flange 17g at the longitudinal intermediate portion.

17h is an electromagnet disposed inside the box 17e to attract the engagement piece 17f; 17i is a biasing body consisting of a compression coil spring whose ends are in contact with the flange 17g and the box 17e; and 18 is a biasing body when the elevator is out of power. 19 is a switch that is manually operated when operating the elevator manually, 20 is an elevator management device consisting of contact 18 and switch 19, + and - are uninterruptible power supplies. be.

That is, under normal conditions, the contacts 18 and the switch 19 are open and the electromagnet 17h is deenergized, so the engaging piece 17f is pressed by the biasing body 17i and engages with the engaging groove 17c, so that the upper and lower parts Lots 8b and 8a are integrated.

Now, assuming that car door 2 is closed, the first
As shown in FIG. 2, the coupling mechanism 8 is in the lowered position, and the auxiliary sill 14 is in the retracted position substantially parallel to the slope 16.

In this state, a gap A is formed between the thresholds 3 and 4,
Car 1 runs.

Further, the detection device 15 is pressed by the transmission device 13 and operates to detect that the auxiliary sill 14 is in the retracted position.

When the car door 2 is opened as shown in FIGS. 3 and 4, the connection mechanism is raised via the link 7 and the lever 6 by the operation of the opening/closing mechanism 5.

As a result, the transmission device 13 is rotated counterclockwise in FIG. 2 via the pusher 11, resulting in the state shown in FIG. 4.

Incidentally, the excessive rise of the coupling mechanism 8 at this time is absorbed by the bending of the pusher 11, and the transmission device 13 is reliably displaced from the state shown in FIG. 2 to the position shown in FIG. 4.

As a result, the auxiliary sill 14 rises and overhangs from the sill 3, comes into contact with the slope 16, and the upper surface of the auxiliary sill 14 coincides with the surface of the sill 3.

At this time, the gap A is reduced to become the gap B shown in FIG. 4.

Therefore, the casters of the wheelchair can be moved between the thresholds 34 safely and with less impact.

Then, when a power failure occurs in the elevator and the contact 18 is closed, or when the switch 19 is artificially closed, that is, when the management device 20 is activated, (-1-)-18
The electromagnet 17h is energized by either the circuit -17h-(→ or (g)-19-17h-(→).

As a result, the engaging piece 17f is attracted against the biasing body i, and the engagement between the engaging piece 17f and the movable element 17b is released.

Therefore, when the car door 2 is manually opened in this state, the upper rod 8b rises against the retainer 17d as shown in FIG. 6, but the auxiliary sill 14 does not displace.

Therefore, it is possible to prevent accidents caused by the auxiliary sill 14 being in the forward position when the car door 2 is opened and the elevator is running during maintenance operation.

In addition, when a passenger in car 1 manually opens car door 2 during a power outage in the elevator, when the car 1 is at a stop position force (a position corresponding to the landing door engagement device (not shown)), assistance is applied. It is possible to prevent a problem in which the threshold 14 moves forward and interferes with the engagement device.

In this way, the auxiliary sill 14 does not move forward even if the car door 2 opens, except when the elevator is automatically operating.
Accidents caused by the advancement of the auxiliary sill 14 can be prevented.

As explained above, the present invention reduces the gap between the car and the landing using the auxiliary sill when the car door is opened, and the door opening operation and the auxiliary sill are linked through a management device that operates during automatic operation of the elevator. A release device is provided to release the
The auxiliary sill does not displace even if the car door opens except when the elevator is automatically operating.

Thereby, an elevator system is realized in which accidents caused by displacement of the auxiliary sill during maintenance operation of the elevator can be prevented.

[Brief explanation of the drawing]

Fig. 1 is a front view of a car showing an embodiment of an elevator system according to the present invention, Fig. 2 is an enlarged view of the left side of the section ■ in Fig. 1, and Fig. 3 explains the door open state of Fig. 1. Figure 4 is a diagram equivalent to Figure 2 corresponding to Figure 3, Figure 5 is v-v of Figure 1.
A line sectional view, FIG. 6 is a diagram explaining the operation of FIG. 5, and FIG. 7 is a main part electrical circuit diagram of FIG. 1. 1...basket, 2...basket door, 3...sill, 4...
... Landing threshold, 5... Opening/closing mechanism, 8... Connection mechanism, 13... Transmission device, 14... Auxiliary sill, 17...
- Release device, 20... management device. Note that the same parts in the figures are indicated by the same reference numerals.

Claims (1)

[Claims] 1. An opening/closing mechanism for opening and closing the car door provided at the heel;
An auxiliary sill is provided at the bottom of the corner and is configured to move forward and backward; one end is connected to the opening/closing mechanism and the other end is connected to the transmission device of the auxiliary sill, so that the operation of the opening/closing mechanism can be transmitted to the transmission device. and a connecting mechanism configured to move the auxiliary sill forward through the connecting mechanism by the opening operation of the opening/closing mechanism when the door stops at a landing corresponding to the car. In the device for reducing the gap, there is a management device that operates during non-automatic operation in one of the above corners, and a management device that is provided on the connection mechanism and is normally connected to the connection mechanism to transmit the operation of the opening/closing mechanism and the operation of the management device. 1. An elevator system comprising: a release device that is energized by the user to release the connection with the coupling mechanism and disable transmission of the operation of the opening/closing mechanism.