JP2009179431A - Elevator safety device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator safety device capable of preventing foreign matters from being drawn into a door gap, and shielding smoke. <P>SOLUTION: In this elevator safety device provided with an elastic shielding body 11 along a slide-type door gap and preventing foreign matters from being drawn, the elastic shielding body includes long elastic members 14 mounted to a jamb, and a low friction coating 15 provided on parts of the elastic members in sliding contact with at least the door. The elastic members are rubber, soft synthetic resin or leaf springs, and the low friction coating is a Teflon(R) coating. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an elevator safety device, and in particular, foreign objects are drawn into a gap between a three-way frame or a door and another door that moves relative to the three-way frame or the door at an entrance opening that is opened and closed by a sliding door. The present invention relates to an elevator safety device provided with an elastic shield for preventing it from being damaged.

  As an elevator safety apparatus related to the present invention, a fireproof for an elevator comprising an inflatable fireproof material that is inflated by a temperature rise and closes between the door opening peripheral edge and both sliding doors to block the space between them. A door structure is known (see, for example, Patent Document 1).

  The holder is provided with a sealing member that contacts the upper frame turn-up portion of the three-way frame by the elastic force of the leaf spring and seals the gap between the holder and the three-way frame. Has also been proposed in which the sealing member is brought into contact with the three-way frame to seal the gap (see, for example, Patent Document 2).

  In addition, it is attached to the upper frame of the three-way frame, and the packing made of an elastic body that contacts the door panel and seals the gap between the upper frame and the door panel to block the smoke is detachably held by sandwiching the packing elastically It has also been proposed to improve the efficiency of attaching and exchanging packings as a mechanism (see, for example, Patent Document 3).

  Furthermore, as an elevator safety device, a columnar notch is provided at the corner that forms a gap between the elevator three-way frame door, and a columnar movable member is elastically supported in the notch. It has been. The elastic member elastically supports the movable member in the horizontal direction with respect to the three-way frame so that the length of the gap is variable when an external force is applied to the movable member. According to this elevator safety device, it is possible to prevent foreign objects from being drawn between the car door and the three-way frame by moving the movable member so as to narrow the gap between the car door (for example, (See Patent Document 4).

JP 2003-246571 A JP 2004-338851 A JP-A-2005-306578 JP 2006-256761 A

  In such a conventional elevator safety device, the structures proposed for sealing the door gap for the purpose of smoke shielding are all intended for the door gap between the upper frame of the three-sided frame and the door. Therefore, it is impossible to prevent foreign objects from being drawn into the door gap. In addition, the safety device that narrows the door gap by the elastically supported movable member cannot be hermetically sealed, so it is impossible to block the smoke, and the gap between the door and the movable member is narrowed. Once a foreign object is sandwiched between them, it is not easy to extract.

  Accordingly, an object of the present invention is to provide an elevator safety device that can prevent foreign objects from being drawn into the door gap and can also shield the door gap.

  In order to prevent foreign matter from being drawn into the door gap between the three-way frame or the door and the other door moving relative to the three-way frame or the door at the entrance / exit opening opened and closed by the slide type door, In an elevator safety device provided with an elastic shield along the door gap, the elastic shield is attached to the door or the three-way frame and extends toward the opposing door, and at least one of the elastic members An elevator safety device comprising: a low friction coating provided on a portion in sliding contact with the door.

  According to the elevator safety device of the present invention, foreign objects can be prevented from being drawn into the door gap with a simple and reliable structure, and the door gap can be hermetically sealed to prevent smoke.

Embodiment 1 FIG.
1 is a schematic plan sectional view of an entrance / exit portion of an elevator apparatus to which the elevator safety device of the present invention is applied, FIG. 2 is a schematic enlarged view of a door gap portion of FIG. 1, and FIG. 3 is a perspective view showing an elastic shield.

  The elevator apparatus shown in FIGS. 1 to 3 is opened / closed by a sliding door 1 and is opened / closed by a sliding door 5 having a doorway opening 3 surrounded by a three-way frame 2 and surrounded by a three-way frame 6. And a car 8 having an open / close opening 7. The door 1 of the landing 4 is a sliding double door that opens to both sides at the center, and moves relative to the three-way frame 2 and the three-way frame 2 to an open position or a closed position. In order to enable such sliding movement, a door gap 9 is formed between the three-way frame 2 and the door 1. Such a relationship is the same for the door 5 and the three-way frame 6 on the car 8 side, and a door gap 10 is formed.

  As well shown in FIG. 2, long string-like elastic shields 11 are provided in the door gaps 9 and 10, respectively, in order to prevent foreign objects from being drawn into the door gaps 9 and 10. The elastic shield 11 is attached to the three-way frame 2 or 6 along the door gaps 9 and 10 with an adhesive or the like.

  The elastic shield 11 shown in FIG. 3 has a substantially D-shaped cross section and is attached to the three-way frame 2 or 6 with a flat bottom surface 12, and the semicircular cross section of the cylindrical surface 13 forms a door gap 9 or 10. It extends toward the door 1 or 5, and the tip portion or the ridge line portion is in contact with the door 1 or 5 without a gap.

  As shown in detail in FIG. 3, the elastic shield 11 includes an elastic member 14 attached to the three-way frame 2 or 6 and extending toward the door 1 or 5 that forms the door gap 9 or 10. And a low-friction coating 15 provided on at least a portion of the elastic member 14 in sliding contact with the door. The elastic member 14 is, for example, rubber or a soft synthetic resin, and the low friction coating 15 is, for example, a Teflon (registered trademark) coating.

  The elastic member 14 has a sufficient hardness to remove foreign substances that try to enter the door gap 9 or 10, while being soft enough to maintain an airtight sealing relationship during the opening and closing movement of the door 1 or 5. It is something that has

  Such an elastic shield 11 is attached to the three-way frame 2 or 6, extends along the door gap 9 or 10, and has a sealing function, and hermetically seals the door gap 9 or 10. . Even when the doors 1 and 5 slide from the closed position shown in the figure to the open position opened, the elastic shield 11 continues to contact the surfaces of the doors 1 and 5 and keeps the airtight sealing relationship. be able to.

  In addition, since the low-friction coating 15 is provided on the elastic shield 11, the sliding movement of the door 1 or 5 is not hindered, and the elastic shield 11 moves while contacting the door 1 or 5. Also, the occurrence of sliding noise can be prevented. If necessary, at least a portion of the door 1 or 5 where the elastic shield 11 contacts and slides can be provided with a low friction coating to further reduce the friction or to maintain the coating life longer.

Embodiment 2. FIG.
In the elastic shield 16 shown in FIG. 4, the elastic member 17 is a plate spring material made of metal or synthetic resin having a U-shaped cross section, and a low friction coating 15 which is a Teflon (registered trademark) coating is provided thereon. is there. The elastic member 17 is provided with a flange 18, and a base plate 19 is attached to the flange 18 for facilitating attachment to the three-way frame 2 or 6. When the base plate 19 is used, it can be attached using not only an adhesive but also screws.

  When the elastic member 17 is a leaf spring material, it is easy to manufacture, and the elastic member 17 has a high degree of freedom in setting the hardness, that is, the elasticity, and can easily cope with various design conditions.

  In the above description, the elevator safety device of the present invention has been described in relation to a specific embodiment. However, for example, the present invention can be applied to a door gap between an upper frame of a three-way frame and a door. Various modifications and changes can be made, such as application to elevator devices of different systems.

  FIG. 5 is a schematic plan sectional view showing an example in which the elevator safety device of the present invention is applied to an elevator device with double doors. In this example, the elastic shield 11 is provided not only between the door gaps 9 and 10 between the three-way frames 2 and 6 and the doors 1 and 5 but also between the low-speed doors 1 and 5 and the high-speed doors 20 and 21. Door clearances 22 and 23 are also provided.

  FIG. 6 is a schematic plan sectional view showing an example in which the elevator safety device of the present invention is applied to an elevator device with two single doors. FIG. 7 shows the elevator safety device of the present invention with three single doors. The example applied to the elevator apparatus of this is shown with the schematic plane sectional drawing. In the example of FIG. 7, the elastic shield 11 is also provided in the door gaps 26 and 27 between the high speed doors 20 and 21 and the fastest doors 24 and 25.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic plan cross-sectional view of an entrance / exit portion of an elevator apparatus with double doors using an elevator safety device of the present invention. It is a schematic enlarged view of the door clearance gap part of FIG. It is a perspective view which shows an example of an elastic shielding body. It is a perspective view which shows another example of an elastic shielding body. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic plan sectional view showing a double door four door elevator device using the elevator safety device of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic plan cross-sectional view showing a single door two-door elevator device using the elevator safety device of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic plan cross-sectional view showing a single door three door elevator device using the elevator safety device of the present invention.

Explanation of symbols

  1, 5 doors, 2, 6 three-way frame, 3, 7 entrance opening, 4 landing, 8 cage, 9, 10 door gap, 11, 16 elastic shield, 12 bottom surface, 13 cylindrical surface, 14, 17 elastic member, 15 Low friction coating, 18 flange, 19 base plate, 20, 21 high speed door, 22, 23 door clearance, 24, 25 fastest door, 26, 27 door clearance.

Claims (5)

In order to prevent foreign matter from being drawn into the door gap between the three-way frame or door and other doors that move relative to the three-way frame or door at the entrance opening that is opened and closed by a sliding door In an elevator safety device provided with an elastic shield along the gap,
The elastic shield is attached to the door or the three-way frame and is extended with a long elastic member extending toward the door, and a low-friction coating provided on at least a portion of the elastic member in sliding contact with the door And an elevator safety device.   The elevator safety device according to claim 1, wherein the elastic member is rubber or a soft synthetic resin, and the low friction coating is a Teflon (registered trademark) coating.   The elevator safety device according to claim 1, wherein the elastic member is a leaf spring material made of metal or synthetic resin, and the low friction coating is a Teflon (registered trademark) coating.   The elevator safety device according to any one of claims 1 to 3, wherein the elastic shielding body hermetically seals the door gap.   The elevator safety device according to any one of claims 1 to 4, wherein a low-friction coating is provided on at least a portion of the door that is in contact with the elastic shield.

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