JPS5853417Y2 - elevator door equipment - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of an elevator door device.

First of all. A conventional elevator door device will be explained with reference to FIG.

In the figure, 1 is the elevator car entrance, 2 is the sliding door that opens and closes it, 3 and 3' are the door legs attached to the lower end of the sliding door 2, and 3 a and 3 a' are made of low-friction materials such as synthetic resin. The sliding pieces mainly consist of bolts 3 b and 3 b'
, is attached to the sliding door 2 via the clamps 3c, 3c'.

Reference numeral 4 denotes a sill having a groove 4a in the opening/closing direction of the sliding door 2, and arranged so that the legs 3, 3' of the door run within this groove.

The doorway 1 and the sliding door 2 are opened and closed with a gap of about 5 mm, and the sliding pieces 3 a of the door legs 3 and 3'
3a' and the sill groove 4a are normally opened and closed with a gap of about 1 to 2 mm.

Therefore, if a child carelessly places his/her hand on the sliding door 2 while the elevator is running, when the elevator reaches the stop floor and the door opens, the child may get his or her finger caught between the doorway 1 and the sliding door 2. There was a risk of being caught.

This invention solves the above-mentioned drawbacks and aims to provide an elevator door device that prevents the accident of fingers being caught between the sliding door 2 and the doorway 1 when the door is opened.

An embodiment of this invention will be described below with reference to FIG.

In the figure, the same reference numerals as in FIGS. 1 and 2 indicate corresponding parts, and 5 is the mounting plate 5a to the sliding door 2, and the door leg 3 is connected from this mounting plate 5a to the sliding door 2.
A bolt 5b stands upright on the side, a nut 5C1 screwed into this pole 5b to tighten the door leg 3, and a mounting pole 5C1 for attaching the mounting plate 5a to the sliding door 2.
This is a mounting fixture for the door leg 3 consisting of d, and is attached between the mounting plate 5a and the sliding door 2 by means of a mounting plate 5d via a clamp 3C.

Reference numeral 6 denotes an elastic body made of a compression coil spring arranged between the mounting plate 5a and the door leg 3, and when a force exceeding a predetermined value is generated on the door leg 3 in a direction perpendicular to the direction of the sill groove 4a. It is designed to be compressed and deformed.

Reference numeral 7 denotes an overload detection switch which is attached to the sliding door 2 and operates when a predetermined force or more is applied to the door leg 3 in a direction perpendicular to the sill groove 4a.

In the above configuration, during normal door opening operation, the sliding door 2
is the sill groove 4. Since the centering is properly adjusted in the direction a, the door leg 3 is not subjected to a large force in the direction perpendicular to the sill groove 4a.

The door leg 3 is then held by the coil spring 6 and does not displace, so the overload detection switch 7 does not operate and the door opens.

Next, if a child's fingers are caught between the doorway 1 and the sliding door 2 when the door is opened, a force will be generated in the sliding door 2 in the opposite direction to the doorway 1, and the coil spring 6 will be compressed, causing the sliding door 2 and the sliding door 1 to be compressed. The gap widens.

As a result, the gap between the door leg 3 and the sliding door 2 becomes narrower, so the overload detection switch 7 is operated, and the sliding door 2 is stopped or reversed.

In this way, even if a finger is caught between the doorway 1 and the sliding door 2 when the door is opened, an accident in which the finger is injured by the opening force of the sliding door 2 can be prevented.

In this embodiment, it is clear that the same effect can be obtained even if the entrance 1 is used as a landing entrance and the sliding door 2 is constructed like a landing door.

Furthermore, it is clear that the same effect can be obtained when the sliding door 2 is a two-panel single-opening type and when a finger is caught between the sliding doors.

Additionally, as an additional function, it detects that the overload detection switch 7 of the sliding door of the elevator or landing is operated while the elevator is running, and sounds a buzzer to prevent fingers from being drawn in. You can also do it.

In addition, FIG. 4 shows another embodiment of this invention, in which the same reference numerals as in FIG. 3 indicate corresponding parts, and 2a indicates a sliding door 2.
It is an upright holder, and a hole 2C is arranged facing a Y-shaped cam 3d provided at the upper end of the door leg 3.

8 has a mounting plate 8a to the sliding door 2, a protrusion 8b and a shaft 8C that project from the mounting plate 8a toward the leg 3 side of the door, and is attached to the sliding door 2 via a clamp 30 with a mounting bolt 8d. This is a fixture for the attached door leg 3.

The door leg 3 is pivoted and arranged on the shaft 8C.

Reference numeral 9 denotes an operating shaft which is made up of a shaft 9a inserted through a hole 2C of the holder 2a, a pressure adjuster 9b of the compression coil spring 6, and a roller 9C pressed against the cam groove of the Y-shaped cam 3d.

In other words, if a child's finger is caught between the doorway 1 and the sliding door 2 when the door is opened, a force will be generated on the sliding door 2 in the opposite direction to the doorway 1, and the door leg 3 will move along the axis 8C in FIG. This generates a force that rotates the coil spring 6 in a counterclockwise direction, compresses the coil spring 6, causes the operating shaft 9 to rise upward, and the door leg 3 rotates in the counterclockwise direction.

This widens the gap between the sliding door 2 and the entrance/exit 1, and at the same time, the overload detection switch 7 operates, and the sliding door 2 is stopped or reversed.

In this way, when a finger is caught between the doorway 1 and the sliding door 2 when the door is opened, an effect similar to that shown in FIG. 3 can be obtained.

In this embodiment, the centering adjustment of the sliding piece 3a and the sill groove 4a and the adjustment of the operating force of the overload detection switch 7 can be performed separately, so that adjustment time can be saved.

As explained above, this invention attaches the door legs so that they can be displaced relative to the sliding door, normally holds the door legs at a predetermined relative position, and when an overload is applied in a direction perpendicular to the opening/closing direction of the sliding door. Since the driving mechanism of the sliding door is controlled by relatively displacing the door legs, it is possible to prevent the accident of fingers being caught between the sliding door and the doorway or between the sliding door and the sliding door when the door is opened. A door device can be provided.

[Brief explanation of drawings]

Figure 1 is a front view of a conventional elevator door device, Figure 2 is a front view of a conventional elevator door device;
The figure is an enlarged side view of the main parts of Figure 1, Figure 3 is a view equivalent to Figure 2 showing an embodiment of the elevator door device according to this invention, and Figure 4 is another embodiment of this invention. FIG. 2 is a view corresponding to FIG. 2 showing an elevator door device according to the present invention. 1... Entrance/exit, 2... Sliding door, 3...
... Door leg, 3a... Rubbing piece, 4...
...Sill, 4a...Sill groove, 5...Door leg 3 fitting, 5a...Mounting plate, 5b...
... Bolt, 5C... Oak l-15d...
...Mounting bolt, 6...Elastic body, 7...
...Overload detection switch. In addition, the same parts or corresponding parts in the figures are indicated by the same reference numerals.

Claims (1)

[Scope of utility model registration request] A sliding door that opens and closes an entrance; a door leg that is attached to the end of the sliding door and configured to be relatively displaceable in a direction perpendicular to the opening and closing direction of the sliding door; and a door leg that is arranged between the door leg and the sliding door. Normally, the door legs are held in a predetermined relative position, and when an overload is applied in a direction perpendicular to the opening/closing direction of the sliding door,
An elevator door device comprising: an elastic body that is elastically deformed to relatively displace a door leg; and an overload detector that operates when the above-mentioned overload is applied to control a sliding door driver. .