JP2003252556A - Keyhole covering structure of landing door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a keyhole covering structure of a landing door of an elevator capable of inhibiting such an act as stuffing the keyhole with a foreign material. <P>SOLUTION: In the landing door 1 of the elevator with the keyhole 2 into which a lock release key 5 is inserted, a keyhole plugging member 3 is inserted into the keyhole 2 from the elevator shaft side A. Accordingly, such an act as stuffing the keyhole with a foreign material can be inhibited. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyhole hiding structure for hiding a keyhole provided in a landing door of an elevator.

[0002]

2. Description of the Related Art An elevator landing door has been locked by a locking device so that it cannot be opened and closed manually during normal operation. However, it was necessary to unlock the locking device for inspection. As a conventional example of a landing door that is unlocked by this method, there is one as shown in FIGS. 13 (a) and 13 (b).

As shown in FIGS. 13 (a) and 13 (b), a keyhole forming member 101 is embedded at the position of the landing door 100 corresponding to a locking device (not shown) by driving from the landing side B. There is. The keyhole forming member 101 is
Cylindrical insertion part 101a inserted into the landing door 100
And the landing door 10 having a diameter larger than that of the insertion portion 101a.
A flange portion 101b arranged in close contact with the surface of the landing side B of 0, and a keyhole 102 is formed at the axial center of the insertion portion 101a and the flange portion 101b.

[0004]

However, in the above-mentioned conventional landing door 100, since the keyhole 102 is opened, there is a possibility that an action such as packing the keyhole 102 with a foreign substance is performed.

If there is a request to change the landing door 100 to one without a keyhole, the keyhole 102
It is necessary to fill and close the stuffing, but the flange 1
01b is projected from the surface of the landing side B by d,
That part becomes a protrusion.

[0006] Therefore, a main object of the present invention is to provide a keyhole concealing structure for a landing door which prevents an act such as a foreign object being packed in the keyhole. Another object of the present invention is to provide a keyhole concealing structure for a landing door that has no portion protruding toward the landing.

[0007]

According to a first aspect of the present invention, a keyhole is provided in a landing door of an elevator and an unlocking key for unlocking the landing door can be inserted, and the keyhole is inserted from the hoistway side. And a keyhole closing member.

In the keyhole concealing structure of this landing door, the keyhole is normally closed by the keyhole closing member and is not exposed.
It is possible to prevent acts such as the keyhole being filled with foreign matter.

The invention of claim 2 is the keyhole concealing structure of the landing door according to claim 1, wherein the keyhole is a hole having no protrusion on the landing side surface of the landing door, Further, the insertion tip end surface of the keyhole closing member is flush with the landing side surface of the landing door.

With this keyhole concealing structure for the landing door, in addition to the effect of the invention described in claim 1, since the landing side surface of the landing door has no unevenness, the position of the keyhole cannot be easily identified. It is more effective in preventing tampering. Further, when there is a request to change the landing door to a keyhole without a keyhole, the keyhole closing member of the keyhole may be removed, and the keyhole may be filled with the keyhole to close the keyhole without making a protruding portion. The presence of the keyhole can be made inconspicuous by using the same color and material as the landing side surface of the landing door as the material for the padding.

A third aspect of the present invention is the keyhole concealing structure for a landing door according to the first or second aspect, which has a connecting member that connects the keyhole closing member and the hoistway side landing door. It is characterized by

With this keyhole concealing structure for the landing door, in addition to the effect of the invention described in claims 1 and 2, when the unlocking key is inserted into the keyhole and the keyhole closing member is removed, the removed keyhole is closed. Since the members are located on the hoistway side of the landing door in a state of being connected by the connecting member, the trouble of searching for the keyhole closing member can be saved.

The invention according to claim 4 is the keyhole concealing structure for a landing door according to claim 1 or 2, which is provided on the hoistway side of the landing door and below the keyhole. It is characterized by having a fall prevention tray.

In this keyhole concealing structure of the landing door, in addition to the function of the invention described in claim 1 or 2, when the unlocking key is inserted into the keyhole and the keyhole closing member is removed, the removed keyhole closing Since the member falls on the fall prevention tray and is placed in the state where it is placed on the fall prevention tray, the trouble of searching for the keyhole closing member can be saved.

According to a fifth aspect of the present invention, a keyhole is provided in a landing door of an elevator into which an unlocking key for unlocking the landing door can be inserted, and a landing side of the landing door and a surface on the landing side. A rotary cover that is disposed along the rotary cover and is rotatable between a position that closes the key hole and a position that opens the key hole.

In the keyhole concealing structure of this landing door, the keyhole can be made invisible under normal conditions by the rotating cover, so that the act of packing foreign matter into the keyhole can be prevented as much as possible.

According to a sixth aspect of the present invention, a keyhole is provided in a landing door of an elevator and an unlocking key for unlocking the landing door can be inserted, and the keyhole is inserted from the landing side and is exposed to the landing side. And a keyhole closing member having an information output portion for outputting light or sound to the outside.

In this keyhole concealing structure of the landing door, the keyhole can be made invisible under normal conditions by the keyhole closing member, so that the act of packing foreign matter into the keyhole can be prevented as much as possible. Further, since the information output unit can output information such as arrival of a car, the keyhole closing member can be effectively used in addition to closing the keyhole.

According to a seventh aspect of the present invention, a keyhole is provided in a landing door of an elevator, and an unlocking key for unlocking the landing door can be inserted, and a hoistway side of the landing door is provided.
A supporting member having a mounting hole at substantially the same position as the key hole, and a supporting unit that is supported by being inserted into the mounting hole of the supporting member from the landing side, and that displays advertising content on a portion exposed to the landing side. And a keyhole closing member having.

In the keyhole concealing structure of this landing door, the keyhole can be made invisible under normal conditions by the keyhole closing member, so that the act of packing foreign matter into the keyhole can be prevented as much as possible. In addition, since the advertisement can be made by the advertisement section, the keyhole closing member can be effectively used in addition to closing the keyhole.

[0021]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) FIG. 1 shows a first embodiment of the present invention, and FIG. 1 (a) is a cross section of a keyhole concealing structure 1A showing a state in which a keyhole 2 is closed by a keyhole closing member 3. Figure, Figure 1
(B) is a sectional view of the keyhole concealing structure 1A showing a state in which the keyhole closing member 3 is removed from the keyhole 2.

As shown in FIGS. 1 (a) and 1 (b), a keyhole 2 is formed at a position of a landing door 1 corresponding to a locking device (not shown). The keyhole closing member 3 is inserted. Keyhole 2 is the landing door 1
It is a hole that does not have a protrusion on the surface of the landing side B. The keyhole closing member 3 is a solid cylindrical insertion portion 3 having substantially the same diameter as the keyhole 2.
a and a flange portion 3 having a diameter larger than that of the insertion portion 3a and arranged substantially in close contact with the hoistway side A surface of the landing door 1.
b and. The axial dimension of the insertion portion 3a is a hole for receiving the unlocking key 5, and the insertion tip end surface 3c of the keyhole closing member 3 is set to be flush with the surface of the landing door 1 on the landing side B. ing.

As shown in FIG. 1B, an operator such as an operator inserts the unlocking key 5 into the keyhole 2, and the tip of the unlocking key 5 presses the keyhole closing member 3. Then, the keyhole closing member 3 falls off the keyhole 2 and is removed to the hoistway side A. Thereby, the operator can unlock the locking device (not shown) at the back of the landing door 1. When work such as inspection is completed, the keyhole closing member 3 is attached to the keyhole 2 from the hoistway side A again.

The keyhole concealing structure 1 of the landing door 1 is as described above.
In A, the keyhole 2 is normally closed by the keyhole closing member 3,
Since it is not exposed, it is possible to prevent the keyhole 2 from being packed with foreign matter.

In the first embodiment, the keyhole 2 is a hole having no protrusion on the surface of the landing door 1 on the landing side B,
In addition, since the insertion front end surface of the keyhole closing member 3 is flush with the surface of the hall door 1 on the landing side B, the surface of the hall door 1 on the landing side B is not uneven, and the position of the keyhole 2 is easy. Since it cannot be distinguished into, it is more effective in preventing tampering. When there is a request to change the landing door 1 to the keyhole 2 without a keyhole, the keyhole closing member 3 is removed from the keyhole 2, and the keyhole 2 is closed with a padding to form a protruding portion. You can deal without it. Further, if the same color and material as the surface of the landing door 1 of the landing door 1 is used as the material for the padding, the keyhole can be more effectively hidden. In addition, the insertion front end surface of the keyhole closing member 3 may be protruded from the surface of the hall door 1 on the landing side B by a predetermined amount, or may be recessed by a predetermined amount.

(Second Embodiment) FIG. 2 shows a second embodiment of the present invention, and FIG. 2 (a) shows a cross section of the keyhole concealing structure 1B showing a state in which the keyhole 2 is closed by the keyhole closing member 3. Figure, Figure 2
(B) is a sectional view of the keyhole concealing structure 1B showing a state in which the keyhole closing member 3 is removed from the keyhole 2.

As shown in FIGS. 2A and 2B, the hoistway side A of the landing door and the keyhole closing member 3 are connected by a chain 10 which is a connecting member. Other configurations are the same as those of the first
Since it is the same as the embodiment, the same symbols are attached to the drawings and the description thereof is omitted. Hereinafter, the same components will be denoted by the same reference numerals.

In the second embodiment, the same operation and effect as those of the first embodiment described above can be obtained.

In the second embodiment, since the keyhole closing member 3 and the hoistway side A of the landing door 1 are connected by the chain 10, when the unlocking key 5 is inserted into the keyhole 2 and the keyhole closing member 3 is removed. Since the removed keyhole closing member 3 is located on the hoistway side A of the landing door 1 in a state of being connected by the chain 10, when the keyhole 2 is closed again by the keyhole closing member 3, it is troublesome to search for the keyhole closing member 3. I can omit it. A rope or a wire may be used as the connecting means.

(Third Embodiment) FIG. 3 shows a third embodiment of the present invention, and FIG. 3 (a) is a cross section of the keyhole concealing structure 1C showing a state in which the keyhole 2 is closed by the keyhole closing member 3. Figure, Figure 3
(B) is a sectional view of the keyhole concealing structure 1C showing a state in which the keyhole closing member 3 is removed from the keyhole 2.

As shown in FIGS. 3A and 3B, the keyhole closing member 3 is rotatably supported on the landing door 1 by the rotation supporting portion 11, and the landing side B is connected via the rotation supporting portion 11. The keyhole closing member 3 is moved to the hoistway side A by the pressing force from
It is designed to be rotated.

In the third embodiment, the above-mentioned first
The same effect as the embodiment can be obtained.

In the third embodiment, the unlocking key 5 is provided in the keyhole 2
When the keyhole closing member 3 is pushed in and the keyhole closing member 3 is pressed, the keyhole closing member 3 is rotationally displaced around the rotation supporting portion 11, whereby the insertion of the unlocking key 5 is permitted. Since the keyhole closing member 3 removed from the keyhole 2 is located in a state in which it is simply rotationally displaced via the rotation support portion 11, when the keyhole 2 is closed again by the keyhole closing member 3, it is troublesome to search for the keyhole closing member 3. Can be omitted.

Further, as shown by phantom lines in FIGS. 3A and 3B, a spring (biasing means) 12 for urging the keyhole closing member 3 may be provided at a position where the keyhole 2 is closed. In this way, when the unlocking key 5 is pulled out from the keyhole 2, the keyhole closing member 3 is rotated by the urging force of the spring 12 and returns to the position where the keyhole 2 is closed, so that the keyhole closing member 3 closes the keyhole 2. You don't have to. Further, even if the keyhole closing member 3 is pressed by mischief, the keyhole closing member 3 automatically returns to the original position,
The keyhole 2 is never left open.

(Fourth Embodiment) FIG. 4 shows a fourth embodiment of the present invention, and FIG. 4 (a) is a cross section of the keyhole concealing structure 1D showing a state in which the keyhole 2 is closed by the keyhole closing member 3. Figure, Figure 4
(B) is a sectional view of the keyhole concealing structure 1D showing a state in which the keyhole closing member 3 is removed from the keyhole 2.

As shown in FIGS. 4A and 4B, the keyhole closing member 3 is magnetized, and at least the member on the hoistway side A of the landing door 1 is a magnetic material, or the keyhole closing member is closed. It is magnetized in the opposite polarity to the member 3.

Also in the fourth embodiment, the same operation and effect as those of the first embodiment can be obtained.

In the fourth embodiment, since the keyhole closing member 3 is magnetized, when the unlocking key 5 is inserted into the keyhole 2 and the keyhole closing member 3 is removed, the removed keyhole closing member 3
Adheres to the surface of the landing door 1 on the hoistway side A by magnetic force, so that when the keyhole 2 is closed again with the keyhole closing member 3, it is not necessary to search for the keyhole closing member 3.

(Fifth Embodiment) FIG. 5 shows a fifth embodiment of the present invention, and FIG. 5A shows a cross section of the keyhole concealing structure 1E showing a state in which the keyhole 2 is closed by the keyhole closing member 3. Figure, Figure 5
(B) is a cross-sectional view of the keyhole concealing structure 1E showing a state in which the keyhole closing member 3 is removed from the keyhole 2.

As shown in FIGS. 5A and 5B, a drop prevention tray 13 is provided on the hoistway side A of the landing door 1 and below the keyhole 2. Since other configurations are the same as those in the first embodiment, the same reference numerals are given to the drawings and the description thereof will be omitted.

Also in the fifth embodiment, the same operation and effect as those of the first embodiment can be obtained.

In the fifth embodiment, the unlocking key 5 is provided in the keyhole 2
When the key hole closing member 3 is removed by inserting the key hole 2 into the drop hole, the removed key hole closing member 3 falls into the fall prevention tray 13 and is placed on the fall prevention tray 13 so that the key hole 2 is closed. When closing the member 3 again, the keyhole closing member 3
You can save the trouble of searching.

(Sixth Embodiment) FIG. 6 shows a sixth embodiment of the present invention, and FIG. 6 (a) is a front view of a keyhole concealing structure 1F showing a state in which the keyhole closing member 3 is in a position to close the keyhole 2. FIG. 6B is a front view of the keyhole concealing structure 1F showing a state in which the keyhole closing member 3 is in a position where the keyhole 2 is not closed.

As shown in FIGS. 6A and 6B, the rotation cover 14 is rotatably supported by the rotation support portion 15 on the landing side B of the landing door 1 and along the surface of the landing side B. ing. Then, the rotation cover 14 has a position for closing the keyhole 2 (the position shown in FIG. 6A) and a position for opening the keyhole 2 (see FIG. 6A).
The position can be rotationally changed between the position (b) and the position (b).

As shown in FIG. 6B, an operator for inspection or the like rotates the rotary cover 14 to expose the keyhole 2.
Thereby, the operator can unlock the locking structure (not shown) in the back of the landing door 1. When the inspection work is completed, the rotary cover 14 is rotated and the keyhole 2
To cover.

Above, the keyhole concealing structure 1 of this landing door 1
In F, the keyhole 2 can be made invisible by the rotating cover 14 in the normal state, so that the act of packing the keyhole 2 with foreign matter can be suppressed.

(Seventh Embodiment) FIG. 7 shows a seventh embodiment of the present invention and is a sectional view of a keyhole concealing structure 1G showing a state in which the keyhole 2 is closed by the keyhole closing member 3.

As shown in FIG. 7, a locking structure (not shown)
The keyhole forming member 20 is embedded in the position of the landing door 1 corresponding to the above by being driven from the landing side B. The keyhole forming member 20 has a solid cylindrical insertion portion 20a inserted into the landing door 1 and a diameter larger than that of the insertion portion 20a, and is arranged substantially in close contact with the surface of the landing door 1 on the landing side B. And the insertion portion 2
0a and the flange portion 20b are formed with keyholes 21 at axial center portions. A cap 22 is attached to the flange portion 20b of the keyhole forming member 20.

In the keyhole concealing structure 1G of the landing door 1 of the seventh embodiment, the keyhole 2 is normally opened by the cap 22.
Since it is possible to make 1 invisible, it is possible to prevent actions such as packing foreign matter in the keyhole 21 as much as possible.

When opening and closing the landing door 1, it is necessary to set the maximum protruding amount to about several mm so as not to interfere with other members (three-sided frame, etc.), but when the landing door 1 is not used as a fire door. Can be arbitrarily set because there is no limit on the amount of protrusion.

(Eighth Embodiment) FIG. 8 shows an eighth embodiment of the present invention, and FIG. 8 (a) shows a cross section of the keyhole concealing structure 1H showing a state in which the keyhole 2 is closed by the keyhole closing member 3. Figure, Figure 8
(B) is a sectional view of the keyhole concealing structure 1H showing a state in which the keyhole closing member 3 is removed from the keyhole 2.

As shown in FIGS. 8A and 8B, the keyhole concealing structure 1H is rotatably supported between a closed position for closing the keyhole 2 of the landing door 1 and an open position for opening the keyhole 2. The keyhole closing member 23 and the keyhole closing member 23 are locked in the closed position, and the keyhole closing member 23 is moved from the landing side B to the hoistway side A.
The lock means 24 is unlocked when pressed to, and locked when the keyhole closing member 23 is returned from the open position to the closed position.
A spring (biasing means) 25 for urging the keyhole closing member 23 located at the closed position to the open position and a magnet 26 for fixing the tip of the spring 25 to the keyhole closing member 23 by magnetic force are provided.

As shown in FIG. 8A, when an operator such as an operator presses the keyhole closing member 23, the lock means 24 is unlocked, and the spring force of the spring 25 causes the keyhole closing member 23 to move. As shown in (b), it is rotated to the open position. When the inspection is completed and the operator returns the keyhole closing member 23 to the closed position against the spring force of the spring 25, the locking means 24 locks the keyhole closing member 23.

As described above, in the keyhole concealing structure 1H of the landing door 1, since the keyhole closing member 23 can make the keyhole 2 invisible under normal conditions, the act of packing the keyhole 2 with foreign matter can be prevented as much as possible. When the locking means 24 is unlocked, the keyhole closing member 23 is moved to the open position by the spring force of the spring 25, and when the keyhole closing member 23 is returned from the open position to the closed position, the locking means 24 locks the locking means 24, so that the keyhole closing operation is performed. It is possible to easily operate the member 23.

(Ninth Embodiment) FIG. 9 shows a ninth embodiment of the present invention, and FIG. 9 (a) is a front view of a keyhole concealing structure 1I showing a state in which the keyhole closing member 27 is in a position to close the keyhole 2. ,
9B is a front view of the keyhole concealing structure 1I showing a state in which the keyhole closing member 27 is in a position to open the keyhole 2, and FIG. 9C is a sectional view of the keyhole concealing structure 1I.

As shown in FIGS. 9A to 9C, a slide cover 27 is provided inside the landing door 1 so as to be slidable between a position where the keyhole 2 is closed and a position where the keyhole 2 is opened. . The slide cover 27 has a handle 28 projecting from the landing side B, and the slide cover 27 is located on the landing side B.
It is more operable.

In the keyhole concealing structure 1I of the landing door 1, the keyhole 2 can be made invisible by the slide cover 27 in the normal state, so that the keyhole 2 can be prevented from being packed with foreign matter. Such a keyhole hiding structure 1I has a keyhole hiding structure 1I within the wall thickness range of the landing door 1.
Can be configured.

A handle 28 is attached to the slide cover 27.
Instead of the above, a groove may be provided, and an operator may operate the slide cover 27 by placing a finger on the groove.

(Tenth Embodiment) FIG. 10 shows the first embodiment of the present invention.
It is a sectional view of keyhole concealing structure 1J which shows 0 embodiment and shows the state where keyhole 2 is closed by keyhole closing member 3.

As shown in FIG. 10, this keyhole concealing structure 1
J is inserted into the keyhole 2 of the landing door 1 from the landing side B, is magnetized, and is disposed on the hoistway side A of the landing door 1 and the attraction plate 30 that is attracted to the keyhole closing member 3 by magnetic force. And a chain 10 that connects the suction plate 30 and the hoistway side A of the landing door 1. The configuration of the keyhole closing member 3 is the same as that of the fourth embodiment.

In the keyhole concealing structure 1J of the landing door 1 of the tenth embodiment, the keyhole 2 can be hidden by the keyhole closing member 3 during normal operation, so that the act of packing foreign matter into the keyhole 2 is prevented as much as possible. it can. Further, since the keyhole closing member 3 is fixed to the suction plate 30 by magnetic force, the keyhole closing member 3 can be fixed to the hall door 1 by magnetic force even when the hall door 1 is a non-magnetic material.

In the tenth embodiment, the keyhole closing member 3
Since the hoistway door 1 and the hoistway side A are connected by the chain 10, the unlocking key 5 is inserted into the keyhole 2 to close the keyhole closing member 3
When the keyhole closing member 3 is removed, the removed keyhole closing member 3 is located in a state of being connected to the hoistway side A of the landing door 1 by the chain 10, so that when the keyhole 2 is closed again by the keyhole closing member 3,
The trouble of searching for the keyhole closing member 3 can be saved.

When the keyhole closing member 3 and the hoistway side A of the landing door 1 are not connected by the chain 10, the fall prevention tray as shown by the one-dot chain line or two-dot chain virtual line in FIG. By providing 31, 32, the same effect can be obtained. That is, the removed keyhole closing member 3 falls into the fall prevention trays 31 and 32, and the fall prevention tray 3
Since it is located in the state of being mounted on Nos. 1 and 32, it is possible to save the trouble of searching for the keyhole closing member 3 when the keyhole closing member 3 is closed again.

(Eleventh Embodiment) FIG. 11 shows the first embodiment of the present invention.
FIG. 7 is a cross-sectional view of the keyhole concealing structure 1K showing the embodiment and showing a state in which the keyhole 2 is closed by the keyhole closing member 33.

As shown in FIG. 11, this keyhole concealing structure 1
K has a keyhole closing member 33 that is inserted into the keyhole 2 of the landing door 1 from the landing side B. An information output unit 33a that outputs light or sound to the outside (landing side) is provided in a portion of the keyhole closing member 33 exposed to the landing side B. As the information output unit 33a, for example, a landing indicator,
A landing lantern, a camera, and a speaker.

In the keyhole concealing structure 1K of the landing door 1, the keyhole 2 can be made invisible under normal conditions by the keyhole closing member 33, so that the keyhole 2 can be prevented from being jammed with foreign matter as much as possible. In addition, since the information output unit 33a can output information such as arrival of a car, the keyhole closing member 33 can be effectively used in addition to closing the keyhole 2.

(Twelfth Embodiment) FIG. 12 shows the first embodiment of the present invention.
12A shows a second embodiment, FIG. 12A is a front view of the keyhole concealing structure 1L showing a state where the keyhole 2 is closed by the keyhole closing member 35, and FIG. It is sectional drawing of 1 L of keyhole concealed structures which show the closed state.

As shown in FIGS. 12 (a) and 12 (b), this keyhole concealing structure 1L is provided on the hoistway side A of the landing door 1 and has a support member 34 having a mounting hole 34a at the same position as the keyhole 2. The key hole closing member 35 supported by being inserted from the landing side B into the mounting hole 34a of the support member 34. An advertising portion 35a for displaying advertising content such as a company name, a logo mark, a mascot mark, etc. is provided on a portion of the keyhole closing member 35 exposed on the landing side B.

In the keyhole concealing structure 1L of the landing door 1 of the twelfth embodiment, an operator for inspection removes the keyhole closing member 35 from the landing side B to expose the keyhole 2. Then, the operator can insert an unlocking key (not shown) through the keyhole 2 and the mounting hole 34a to unlock the locking structure (not shown) in the back of the landing door 1. When the work such as inspection is completed, the keyhole closing member 35 is attached to the support member 34 and the keyhole 2 is covered again.

As described above, the keyhole closing member 35 can make the keyhole 2 invisible under normal conditions, so that the keyhole 2 can be prevented from being packed with foreign matter. Also, the advertising department 3
Since the advertisement can be made by using 5a, the keyhole closing member 35 can be effectively used in addition to closing the keyhole 2.

In the twelfth embodiment, the atmosphere of the landing door 1 can be greatly changed.

[0073]

As described above, according to the present invention,
Normally, the keyhole is closed by the keyhole closing member and is not exposed, so that the keyhole can be prevented from being packed with foreign matter.

Further, according to the present invention, in the landing door having the keyhole into which the unlocking key is inserted, the landing door is arranged on the landing side of the landing door and along the surface of the landing side, and the position where the keyhole is closed and the keyhole. Since the rotary cover is provided so as to be rotatable between the open position and the open position, the keyhole can be made invisible under normal conditions by the rotary cover, so that the act of packing foreign matter into the keyhole can be prevented as much as possible.

Further, according to the present invention, the keyhole forming member is inserted from the landing side of the landing door, and in the landing door in which the keyhole is formed by the keyhole forming member, the keyhole forming member is attached to the keyhole forming member from the landing side to form the keyhole. Since the cap has a cap to cover, the keyhole can be made invisible under normal conditions, so that the act of packing foreign matter into the keyhole can be prevented as much as possible.

According to the present invention, in a landing door having a keyhole into which an unlocking key is inserted, a keyhole closing member rotatably supported between a closed position for closing the keyhole and an open position for opening the keyhole, and Lock the keyhole closing member to the closed position, unlock the keyhole closing member by pushing it from the landing side to the hoistway side, and lock it when the keyhole closing member is returned from the open position to the closed position and the closed position Since the keyhole closing member has the urging means for urging the keyhole closing member to the open position, the keyhole closing member can make the keyhole invisible under normal conditions, and therefore the act of packing the keyhole with foreign matter can be prevented as much as possible. When the lock means is unlocked, the keyhole closing member moves to the open position by the urging force of the urging means, and when the keyhole closing member is returned from the open position to the closed position, it is locked by the locking means. Can be done easily.

According to the present invention, in the landing door having the keyhole into which the unlocking key is inserted, the door is operable from the landing side and is slidable between the position where the keyhole is closed and the position where the keyhole is opened. Since it has a slide cover,
Normally, the keyhole can be made invisible by the slide cover, so that the keyhole can be prevented from being jammed with foreign matter.

According to the present invention, in a landing door having a keyhole into which an unlocking key is inserted, a keyhole closing member which is inserted into the keyhole from the landing side and magnetized, and a keyhole which is arranged on the hoistway side of the landing door. Since the closing member has a suction plate that is attracted by magnetic force, the keyhole can be made invisible under normal conditions by the closing member, so that the act of packing foreign matter into the keyhole can be prevented as much as possible. Further, since the keyhole closing member is fixed to the attraction plate by magnetic force, the keyhole closing member can be fixed to the hall door by magnetic force even when the landing door is a non-magnetic material.

According to the present invention, in the landing door having the keyhole into which the unlocking key is inserted, the keyhole closing member to be inserted into the keyhole from the landing side is provided, and the portion of the keyhole closing member exposed to the landing side is exposed. Since the information output unit for outputting light and sound to the outside is provided, the keyhole can be made invisible under normal conditions by the keyhole closing member, so that the act of packing foreign matter into the keyhole can be prevented as much as possible. Further, since the information output unit can output information such as arrival of a car, the keyhole closing member can be effectively used in addition to closing the keyhole.

According to the present invention, in a landing door having a keyhole into which an unlocking key is inserted, a supporting member provided on the hoistway side of the landing door and having a mounting hole at the same position as the keyhole, and mounting of this supporting member. The keyhole closing member is supported by being inserted into the hole from the landing side, and the advertising portion for displaying the advertising content is provided on the exposed portion of the keyhole closing member on the landing side. Since the keyhole can be made invisible by the member, the act of packing the keyhole with foreign matter can be prevented as much as possible. In addition, since the advertisement can be made by the advertisement section, the keyhole closing member can be effectively used in addition to closing the keyhole.

[Brief description of drawings]

1A is a sectional view of a keyhole concealing structure showing a state in which a keyhole is closed by a keyhole closing member according to a first embodiment of the present invention, and FIG. 1B is a keyhole closing member removed from a keyhole. Sectional drawing of a keyhole concealed structure which shows a state.

FIG. 2A is a sectional view of a keyhole concealing structure showing a state in which the keyhole is closed by the keyhole closing member according to the second embodiment of the present invention, and FIG. 2B is the keyhole closing member removed from the keyhole. Sectional drawing of a keyhole concealed structure which shows a state.

FIG. 3A is a sectional view of a keyhole concealing structure showing a state in which the keyhole is closed by the keyhole closing member according to the third embodiment of the present invention, and FIG. 3B is the keyhole closing member removed from the keyhole. Sectional drawing of a keyhole concealed structure which shows a state.

FIG. 4A is a sectional view of the keyhole concealing structure showing a state in which the keyhole is closed by the keyhole closing member according to the fourth embodiment of the present invention, and FIG. 4B is the keyhole closing member removed from the keyhole. Sectional drawing of a keyhole concealed structure which shows a state.

FIG. 5A is a sectional view of a keyhole concealing structure showing a state in which the keyhole is closed by the keyhole closing member according to the fifth embodiment of the present invention, and FIG. 5B is the keyhole closing member removed from the keyhole. Sectional drawing of a keyhole concealed structure which shows a state.

FIG. 6A is a front view of a keyhole concealing structure showing a state in which a keyhole closing member according to a sixth embodiment of the present invention is in a position to close the keyhole, and FIG. 6B is a position where the keyhole closing member does not close the keyhole. The front view of the keyhole concealing structure which shows the state in FIG.

FIG. 7 is a sectional view of a keyhole concealing structure showing a state where the keyhole is closed by a keyhole closing member according to a seventh embodiment of the present invention.

FIG. 8A is a sectional view of the keyhole concealing structure showing a state where the keyhole is closed by the keyhole closing member according to the eighth embodiment of the present invention, and FIG. 8B is the keyhole closing member removed from the keyhole. Sectional drawing of a keyhole concealed structure which shows a state.

FIG. 9A is a front view of a keyhole concealing structure showing a state in which a keyhole closing member according to a ninth embodiment of the present invention is in a position to close the keyhole, and FIG. 9B is a position where the keyhole closing member is in the position to open the keyhole. The front view of the keyhole hiding structure which shows a state, (c) is sectional drawing of the keyhole hiding structure.

FIG. 10 is a sectional view of a keyhole concealing structure showing a state in which the keyhole is closed by the keyhole closing member according to the tenth embodiment of the present invention.

FIG. 11 is a cross-sectional view of the keyhole concealing structure showing a state in which the keyhole is closed by the keyhole closing member according to the twelfth embodiment of the present invention.

FIG. 12A is a front view of a keyhole concealing structure showing a state in which the keyhole is closed by the keyhole closing member according to the twelfth embodiment of the present invention, and FIG. 12B is a keyhole closing member by which the keyhole is closed. Sectional drawing of a keyhole concealed structure which shows the state where it has.

13A is a perspective view showing a keyhole of a conventional landing door, and FIG. 13B is a sectional view of a keyhole portion of a conventional landing door.

[Explanation of symbols]

A hoistway side B platform side 1 platform door 2,21 keyhole 3,23,27,33,35 Keyhole closing member 5 unlocking key 10 Chain (connecting member) 11,15 Rotation support 12, 25 Spring (biasing means) 13, 31, 32 Fall prevention tray 14 Rotating cover 20 Keyhole forming member 22 Cap 24 Locking means 30 adsorption plate 33a External output section 34 Support member 34a mounting hole 35a Advertising Department

Claims (7)

[Claims] 1. A keyhole closing member that is provided in an elevator landing door and into which an unlocking key for unlocking the landing door can be inserted; and a keyhole closing member that is inserted into the keyhole from the hoistway side. The structure that hides the keyhole of the landing door. 2. The keyhole concealing structure for a landing door according to claim 1, wherein the keyhole is a hole having no protrusion on the landing side surface of the landing door, and the keyhole closing The keyhole concealing structure for a landing door, wherein an insertion tip end surface of the member is flush with a landing side surface of the landing door. 3. The keyhole concealing structure for a landing door according to claim 1, further comprising a connecting member that connects the keyhole closing member and the hoistway side landing door. A structure with a hidden keyhole in the landing door. 4. The keyhole concealing structure for a landing door according to claim 1, further comprising a fall prevention tray provided on the hoistway side of the landing door and below the keyhole. A structure for hiding the keyhole of the landing door, which is characterized by having. 5. A keyhole provided on a landing door of an elevator, into which an unlocking key for unlocking the landing door can be inserted, and a keyhole disposed on the landing side of the landing door and along a surface on the landing side, A keyhole concealing structure for a landing door, comprising a rotating cover rotatably provided between a position for closing the keyhole and a position for opening the keyhole. 6. A key hole provided in a landing door of an elevator, into which an unlocking key for unlocking the landing door can be inserted, and a light or a sound is inserted in a portion which is inserted into the key hole from the landing side and exposed to the landing side. And a keyhole closing member having an information output part for outputting the keyhole to the outside, and a keyhole concealing structure for a landing door. 7. A keyhole provided in a landing door of an elevator, into which an unlocking key for unlocking the landing door can be inserted, and a mounting hole provided in a hoistway side of the landing door, at a substantially same position as the keyhole. And a keyhole closing member that is supported by being inserted into the mounting hole of the support member from the landing side and that has a advertising portion that displays advertising content on a portion exposed to the landing side. Features a hidden keyhole for the landing door.