JP2002114471A - Sliding door device for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sliding door device for an elevator with a simple structure capable of keeping a foreign matter detection means of an entrance in a normal state by simple maintenance work. SOLUTION: In this sliding door device, an edge part on the doorstop side of a sliding door 1 opening/closing the entrance is installed with a tube body 10 of a viscoelastic material, and plural horizontal partition plates 11 of a viscoelastic material each having a through hole 12 are provided along the longitudinal direction of the tube body 10 apart from each other. The tube body 10 is provided with a photoelectric device 13 passing a light beam 14 through the through holes 12 of the plates 11. Thereby, when closing the sliding door 1, door-closing operation is abnormal-time-controlled by operation of the photoelectric device 13 caused by elastic deformation of the tube body 10 or the like pressed by a foreign matter in the entrance. Accordingly, the sliding door device requires no link or the like to allow low-cost production and capable of being installed by easy work, and a normal detection function for the foreign matter in the entrance can be maintained by the simple maintenance work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator sliding door device provided with means for detecting foreign matter during a door closing operation.

[0002]

2. Description of the Related Art FIG.
FIG. 1 is a front view showing a conventional sliding door device for an elevator, which is similar to the configuration shown in Japanese Unexamined Patent Application Publication No. H10-205,026. In the figure, 1 is a sliding door for opening and closing an entrance (not shown), 2 is a contact rod, which is provided at an edge on the door stop side of the sliding door 1 and whose longitudinal length is arranged in the vertical direction. It is arranged so as to protrude in the door closing operation direction from the portion.

[0003] Reference numeral 3 denotes a parallel crank mechanism, a link 4 having both ends pivotally connected to a sliding door 1 and a contact rod 2, respectively, and arranged vertically apart from each other, and extending from a pivoting end of one of the links 4 on the sliding door 1 side. The arm 5 is provided with a detector 6 comprising a switch mounted on the sliding door 1 and having an operating portion facing the arm 5. Numeral 7 denotes a blocking element which is mounted on the sliding door 1 and protrudes and is disposed opposite to the longitudinal middle of one of the links 4 to prevent the link 4 from rotating counterclockwise in FIG. 3 at a predetermined position.

[0004] The conventional sliding door device of an elevator is constructed as described above, and normally, the contact rod 2 is held at a position protruding from the edge of the sliding door 1 on the door stop side in the door closing operation direction. In this state, the sliding door 1 opens and closes, and when the contact rod 2 collides with a foreign object such as a passenger of an elevator at the doorway during the door closing operation, the contact rod 2 retreats by the parallel crank mechanism 3.

The rotation of the arm 5 due to the retreating operation of the contact rod 2 releases the pressing of the operating portion of the detector 6, and the detector 6 operates. Then, a control device (not shown) is energized by the operation of the detector 6, and abnormal operation control is performed such that the door closing operation of the sliding door 1 is braked or the reversing door is opened. This prevents a foreign object from being trapped between the edge of the entrance and the sliding door 1.

[0006]

In the conventional sliding door device for an elevator as described above, the contact rod 2 is mounted on the sliding door 1 via the parallel crank mechanism 3. For this reason, the configuration of the apparatus becomes complicated and the cost increases. In addition, in order for the contact rod 2 to normally retreat when necessary, a high installation accuracy is required, and a maintenance work such as checking a displacement of the link 4 is required. However, there is a problem that a complicated operation is required.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and has a simple configuration and can easily maintain a foreign object detecting means at an entrance and an entrance in a normal state by a simple maintenance work. The purpose is to obtain.

[0008]

SUMMARY OF THE INVENTION In an elevator sliding door apparatus according to the present invention, a sliding door for opening and closing an entrance and an end of the sliding door in the door closing operation direction are mounted on an edge on a door stop side of the sliding door. A cylinder made of a viscoelastic material whose longitudinal length is arranged in the vertical direction, a through space made of a viscoelastic material is provided, arranged horizontally in the cylindrical body, and separated from each other along the length of the cylindrical body. A plurality of diaphragms, and an optoelectronic device that operates at the time of blocking light beams generated by displacement of the diaphragm caused by displacement of the diaphragm due to bending of the cylindrical body due to external force by generating light passing through the through space of the diaphragm. Provided.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 1 and 2 are views showing an example of an embodiment of the present invention. FIG. 1 is a perspective view of a main part of a sliding door device of an elevator, and FIG. 2 is a cylinder for explaining a deformation state of the cylinder of FIG. 1 due to an external force. FIG.
In the figure, 1 is a sliding door for opening and closing an entrance (not shown), 8 is a door pocket column, which forms an edge of the entrance on the door pocket side.
9 is a door stop edge of the doorway.

Reference numeral 10 denotes a cylindrical body made of a viscoelastic material such as rubber, which is vertically arranged in a longitudinal direction and is mounted on the edge of the sliding door 1 on the side of the door stop. To form Numeral 11 denotes a diaphragm made of a viscoelastic material such as rubber, which is provided with a through space 12 and has a cylindrical body 1.
0 and are spaced apart from each other along the length of the cylinder 10.

Reference numeral 13 denotes a photoelectric device provided on the cylindrical body 10,
The through space 12 of the diaphragm 11 is disposed at the lower end of the cylindrical body 10.
Light-emitting part 15 and cylindrical body 10 that generate light rays 14 passing through
The light receiving unit 16 is disposed at the upper end of the cylindrical body 10 and receives the light beam 14. The light receiving unit 16 operates by intercepting the light beam 14 caused by the displacement of the diaphragm 11 due to the bending of the cylindrical body 10. 1
Reference numeral 7 denotes a foreign object including passengers, baggage, and the like of an elevator at the entrance during the door closing operation of the sliding door 1.

In the elevator sliding door device constructed as described above, the cylindrical body 10 and the diaphragm 11 are normally arranged on the sliding door 1 as shown in FIG. 1 without being deformed. Further, the light beam 14 passes through the through space 12 of the diaphragm 11 from the light emitting unit 15 and is received by the light receiving unit 16. As a result, the photoelectric device 13 is kept in a non-operation state.

When the sliding door 1 opens and closes in the state shown in FIG. 1, and the foreign body 17 collides with the foreign matter 17 at the doorway during the closing operation, the cylindrical body 10 bends and accompanies this bending. The light beam 14 is blocked by the displacement or deformation of the diaphragm 11. As a result, the photoelectric device 13 is operated, and a control device (not shown) is energized to perform abnormal control such that the door closing operation of the sliding door 1 is braked or the reversing door is opened. This prevents a problem in which the foreign matter 17 is sandwiched between the door stop edge 9 of the doorway and the sliding door 1 beforehand.

As described above, according to the construction of the elevator sliding door device according to the embodiment of FIGS. 1 and 2,
The door closing operation of the sliding door 1 is controlled at an abnormal time via the elastic deformation of the cylindrical body 10 and the like. For this reason, there is no mechanical operation mechanism, and a simple device configuration is provided, and the device can be manufactured at low cost. In addition, it can be installed by simple work,
The function of detecting a normal foreign substance 17 can be maintained by a simple maintenance operation. Therefore, manufacturing costs and maintenance costs can be reduced.

[0015]

As described above, the present invention provides a sliding door that opens and closes an entrance and an end of the sliding door in the door closing operation direction by being attached to an edge of the door stop side. A plurality of viscoelastic material cylinders, and a plurality of diaphragms, which are provided horizontally with the viscoelastic material and are provided horizontally apart in the cylinder body and are provided apart from each other along the length of the cylinder body. And a photoelectric device that generates a light beam that passes through the through space of the diaphragm and operates when a light beam generated by displacement of the diaphragm due to bending of the cylindrical body due to an external force is activated.

Thus, the door closing operation of the sliding door is abnormally controlled by the operation of the photoelectric device through the elastic deformation of the cylindrical member or the like provided at the edge of the sliding door in the door closing operation direction. For this reason, there is no mechanical operation mechanism, and a simple device configuration is provided, and the device can be manufactured at low cost. In addition, installation can be performed by a simple operation, and the function of normally detecting foreign matter at the entrance can be maintained by a simple maintenance operation, so that there is an effect of reducing manufacturing costs and maintenance costs.

[Brief description of the drawings]

FIG. 1 is a view showing Embodiment 1 of the present invention and is a perspective view of a main part of a sliding door device of an elevator.

FIG. 2 is a perspective view of a main part of the cylindrical body for explaining a deformed state of the cylindrical body in FIG. 1 due to an external force.

FIG. 3 is a front view showing a conventional elevator sliding door device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Sliding door, 10 cylindrical body, 11 diaphragm, 12 penetration space, 13 photoelectric device, 14 light beam, 15 light emitting part, 16
Light receiving section.

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Claims (1)

[Claims] 1. A sliding door which opens and closes an entrance, and a viscoelastic tube which is attached to an edge of the sliding door at a door stop side to form a front end portion in a door closing operation direction and has a longitudinal length arranged in a vertical direction. And a plurality of diaphragms, which are provided horizontally, and are provided apart from each other along the longitudinal direction of the cylindrical body, and a plurality of diaphragm plates, which are provided with a through space made of a viscoelastic material and are provided horizontally in the cylindrical body, And a photoelectric device that operates when the light beam is cut off due to the displacement of the diaphragm caused by the bending of the cylindrical body due to an external force due to the generation of a light beam passing through the sliding door device.