JPH0626530Y2 - Sliding door device for elevator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to an elevator doorway device installed at an elevator doorway.

(Prior Art) Generally, for example, at a doorway of an elevator or the like, a sliding door device capable of automatically laterally opening and sliding in a horizontal direction by a drive mechanism is provided.

Conventionally, in this type of sliding door device, in particular, in a sliding door device installed at an entrance / exit of an elevator, the sliding door constitutes a part of an elevator hall. Therefore, the Ministry of Construction Notification No. It must be designed to meet the smoke performance regulations.

However, in such a conventional sliding door device, in order to smoothly slide the sliding door, which is a door that is openably and closably provided on the inner peripheral portion of the frame forming the doorway, a gap is provided between the frame and the sliding door. The current situation is to keep it.

(Problems to be solved by the invention) Therefore, in the above-mentioned conventional sliding door device, it is not possible to sufficiently satisfy the regulation of the predetermined smoke shielding performance, and moreover, when the sliding door is opened and closed, the fingers and fingers are There was a problem that it was dangerous because it was often caught between the sliding doors and injured.

The present invention has been made under the above circumstances, and its purpose is to sufficiently satisfy the predetermined smoke shielding performance in the closed state of the sliding door, and between the frame and the sliding door when opening and closing. An object of the present invention is to provide a sliding door device capable of reliably preventing the fingers and the like from being pulled in.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention has a frame forming an entrance / exit of an elevator and a sliding door that is openable / closable with respect to the frame. In an elevator entrance / exit door device provided with a protrusion that protrudes in a state of narrowing a gap between the sliding door and the frame on one of the shaded portions of the sliding door peripheral edge and the frame that overlap with each other when the sliding door is closed. A first sealing member composed of a lip of a non-metallic elastic body having a circular engaging head portion, and the convex engaging head portion of the first sealing member on the other side is a concave shape that is in close contact with the elevator hole side. And a second seal member made of a non-metallic elastic body having an engaging surface.

(Operation) In the case of the elevator door entrance / exit device having the above-described configuration, with the closing of the sliding door, a lip of a non-metallic elastic body is provided on one of the shaded portions of the periphery of the sliding door and the frame where the sliding door overlaps with each other. Since the convex engagement head of one seal member and the concave engagement surface of the second seal member made of a non-metallic elastic body provided on the other are in close contact with each other, there is a gap between the sliding door and the frame. The gap between the two is surely closed, and the smoke leaks in the event of a fire, that is, smoke leaks from the elevator hall on the floor to the elevator hoistway and flows to other floors, and vice versa from the hoistway. Smoke can be reliably prevented from leaking to the elevator hall on the floor, and a sufficient smoke shielding effect can be obtained.

Especially when a fire occurs in the elevator hall on the floor,
In many cases, the hole side has a higher atmospheric pressure than the inside of the hoistway, but even in such a case, the first seal member composed of a lip of a non-metallic elastic body protruding so as to narrow the gap between the sliding door and the frame is used. The convex engagement head portion is pressed against the concave engagement surface of the second seal member by the atmospheric pressure from the elevator hall side to further strongly adhere to the concave engagement surface, so that a more sufficient smoke shielding effect can be obtained. You will get it.

Moreover, since the sealing members provided on both the periphery and the frame of the sliding door are non-metallic elastic bodies,
Even if a finger or the like is accidentally drawn between the sliding door and the frame,
You can easily pull it out without injuring yourself and avoid the danger.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 shows an embodiment in which a sliding door device according to the present invention is installed at an elevator entrance / exit. In the drawing, 1 is an entrance / exit of an elevator which is an entrance / exit, and 2 is an entrance / exit 1 of this elevator.
This frame 2 is composed of side frames 2a and 2b forming side edge portions on the side of the door pocket, and an upper frame 2c. The frame 2 is formed by the side frames 2a and 2b and the upper frame 2c. Is a door 3 including a pair of left and right door panels 3a and 3b which are sliding doors.
Is provided so as to be openable and closable, and each door panel 3 of this door 3
The a and 3b are slidable with a gap maintained with respect to the frame 2. Further, as shown in FIGS. 2 to 5,
In the figure, 4 is a guide roller, and the guide roller 4 is formed by suspending the upper end of the door panel 3a or 3b and sliding it along a guide rail 5 fixed to the upper frame 2c of the frame 2. Door panel 3 suspended from the guide roller 4
The lower end of a or 3b is guided through a guide shoe 6 along a guide groove 7a formed in the floor 7 of the entrance / exit 1 of the elevator.

That is, each door panel 3a, 3 which constitutes the door 3
b is configured to slide with a gap from the frame 2 by a drive mechanism (not shown), and when the door is completely closed, the side frames 2a and 2b of the frame 2, the upper frame 2c, and the guide groove 7a. And a pair of left and right door panels 3a, 3b are overlapped on one frame 2 side of the shaded portion of the peripheral edge, the first seal members 10, 11, which are made of non-metallic elastic lips.
12 are attached with adhesive or bolts 31 and the like, and each door panel 3a, 3b of the other door 3 is attached.
On the side, a second seal member 20 made of a non-metallic elastic body,
21 and 22 are attached by adhesion or the like, and these first and second seal members 10, 11, 12 and 20,
Reference numerals 21 and 22 denote shapes that engage with each other when the door is completely closed, for example, as shown in FIG. 6, lip engaging heads made of a non-metallic elastic body that is the first seal member 10. 10a is made convex, and further, the engagement surface 20a of the non-metallic elastic body which is the second seal member 20 is made concave so that they can be adhered to each other, thereby enhancing the sealing effect, that is, the smoke shielding effect. In this case, the first and second sealing members 10, 11, 12 and 20, 21, 22 and, in particular, as shown in FIGS. 2 and 6, In addition to the smoke shielding effect, a stopper function is provided by the concavo-convex engagement between the second seal member 20 and the second seal member 20, so that the passenger's fingers or hands can enter between the frame 2 on the door pocket side and the door 3. There is no such thing. Further, with such a configuration, when a fire occurs on the elevator hall side, for example, the pressure on the elevator hall side becomes high, so that the lip tip convex portions of the first seal members 10, 11, and 12 are second. Sealing members 20, 21, 22
It strongly adheres to the concave surface of the and can enhance the smoke shielding effect in case of fire.

By the way, the door panels 3a and 3b of the door 3 described above.
Is designed to slide along a plane orthogonal to the entrance / exit direction of the entrance / exit 1 of the elevator, so that the first seal members 10, 11, 12 and the second seal members 20, 21, 22 is in close contact with each other, a sliding noise is generated when the door is opened and closed, and each seal member 10, 11,
Since wear of 12, 20, 21, and 22 becomes severe, it is desirable to bring them into close contact only when the door is completely closed. For that purpose, as shown in FIGS. 3 to 5, in particular, the second seal member at the upper edge of the door panel 3a or 3b corresponding to the first seal member 11 attached to the upper frame 2c of the frame 2 is used. 21 is elevated at the center of the entrance / exit of the entrance / exit 1 of the elevator and is attached at an inclination of an angle θ, and the first seal member 1
The second and second sealing members 22 are also attached in the same manner. In this case, the mounting angle θ between the first seal member and the second seal members 11 and 21, 12 and 22
Varies depending on the mechanical properties of the non-metallic elastic body of the first seal members 11 and 12 and the lip shape, but the shield when the first seal members 11 and 12 are in close contact with the second seal members 21 and 22. Although it is appropriately set depending on the degree of smoke performance, the range of the angle θ is determined by the appearance when viewed from the elevator hall side, the allowable depth of the guide groove 7a, etc., and is as small as possible. Is desirable.

In the above-mentioned embodiments, the non-metallic elastic body is preferably made of a material that satisfies the fire protection regulations described in Article 110, paragraph 4 of the Enforcement Ordinance of the Building Standards Act.

In addition, it goes without saying that the present invention can be modified in various ways without changing the gist of the present invention.

[Advantages of the Invention] Since the elevator doorway device of the present invention is configured as described above, when the sliding door is closed, the non-metal provided on one of the shaded portions where the peripheral edge of the sliding door and the frame overlap with each other. The convex engagement head of the first seal member composed of the lip of the elastic body and the concave engagement surface of the second seal member composed of the non-metallic elastic body provided on the other can be in close contact with each other, Surely close the gap between the sliding door and the frame to leak smoke due to a fire, that is, smoke leaks from the elevator hall on the floor to the elevator hoistway and flows to other floors, and vice versa. Smoke can be reliably prevented from leaking from the hoistway to the elevator hall on the floor, and a sufficient smoke shielding effect can be obtained.

Especially when a fire occurs in the elevator hall on the floor,
In many cases, the hole side has a higher atmospheric pressure than the inside of the hoistway, but even in such a case, the first seal member composed of a lip of a non-metallic elastic body protruding so as to narrow the gap between the sliding door and the frame is used. Since the convex engagement head is pressed against the concave engagement surface of the second seal member by the air pressure from the elevator hall side and further comes into close contact with the concave engagement surface, a more sufficient smoke shielding effect can be obtained.

Moreover, since the sealing members provided on both the periphery and the frame of the sliding door are non-metallic elastic bodies,
Even if a finger or the like is accidentally drawn between the sliding door and the frame,
It can be pulled out easily without being injured, and danger can be avoided.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment in which a sliding door device according to the present invention is installed in an elevator entrance / exit, and FIG. 2 is the same as FIG.
A cross-sectional view of the main part taken along the line II-II, and FIG. 3 is also FIG. 1 II.
A cross-sectional view of the main part taken along the line I-III, and FIG. 4 is also FIG. 1 IV
-A cross-sectional view of the main part taken along line IV, and Fig. 5 is the same as Fig. 3 V-
Similarly, FIG. 6 is an enlarged cross-sectional view of a main part showing a state in which the sealing members provided on the frame and the sliding door are in close contact with each other, and the seal member is in a close contact state when the sliding door is completely closed. 1 ... entrance / exit (elevation entrance / exit), 2 ... frame, 2a, 2b ... side frame, 2c ... upper frame, 3 ... sliding door (door), 3a, 3b ... door panel, 5 ... guide rail , 6 ... Guide shoe, 7a ... Guide groove, 10, 11, 12 ... First seal member, 20, 21, 22 ... Second seal member.

Claims (1)

[Scope of utility model registration request] 1. An elevator entrance / exit sliding door device comprising a frame forming an entrance / exit of an elevator and a sliding door provided so as to be openable / closable with respect to the frame, wherein the sliding door overlaps with each other when the sliding door is closed. A first sealing member including a lip of a non-metallic elastic body having a convex engaging head protruding in a state where a gap between the sliding door and the frame is narrowed on one of the shaded portions of the peripheral edge and the frame. And a second seal member made of a non-metallic elastic body having a concave engagement surface with which the convex engagement head of the first seal member is in close contact with the elevator hole side. The sliding door device for an elevator entrance / exit characterized by the above.