JP4354266B2 - Elevator landing equipment - Google Patents

Description

  The present invention relates to an elevator landing device, and more particularly to an elevator landing device provided with a fire prevention and smoke prevention screen for preventing the spread of a fire disaster via a hoistway caused by flames and smoke during a building fire.

5 and 6 show a conventional elevator landing device, FIG. 5 is a front view of a landing entrance, and FIG. 6 is a cross-sectional view taken along line AA in FIG.
As illustrated, a doorway 2 formed in the elevator hoistway 1 is provided with an entrance 3 that opens to the hoistway 1. Further, the entrance / exit 3 includes a three-sided frame vertical frame 4 provided on both side walls thereof, and a three-sided frame curtain plate 5 provided over the upper end of each three-sided frame vertical frame and forming an edge of the entrance / exit 3. A three-way frame is provided.

A landing door 6 for opening and closing the entrance 3 of the landing 2 is provided on the side of the hoistway 1 of the three-way frame. The lower end is guided in the opening and closing direction along the threshold 7 provided at the lower end thereof, and the upper end is provided at the upper end. The door 3 is opened and closed by a door opening / closing device 8 provided.
Further, a screen case 9 is disposed on the back surface of the three-way frame curtain plate 5, and a fireproof and smokeproof screen 10 is wound and stored therein.

  A screen weight 11 is provided at the lower end of the fireproof and smokeproof screen 10 to facilitate the downward movement of the screen weight 11, and in response to a signal from a fire detector or the like (not shown) when a building fire occurs. The fire and smoke screen 10 descends along a guide groove 4a recessed vertically in the three-way frame vertical frame 4, closes the opening 3 of the landing 2, and prevents flame and smoke from entering the hoistway 1. I try to prevent it.

Further, the screen weight 11 is restricted from moving upward by an upper limit stopper 13 provided on the upper surface of the upper frame 12 provided between the lower surface 5a of the three-way frame curtain plate and the landing door 6. That is,
When the fireproof / smokeproof screen 10 is retracted into the screen case 9, the upper end of the screen weight 11 comes into contact with the L-shaped bent portion 13a formed at the upper end of the upper limit stopper 13, and the upward movement further occurs Being regulated.

Further, the display device 14 for the landing is disposed on the three-way frame curtain plate 5. The main body 14a is provided on the back surface of the three-way frame curtain plate 5, and includes regular replacement including replacement of a lamp housed therein. An inspection port 15 is provided on the lower surface 5a of the three-way frame curtain plate for efficient maintenance and inspection.
Further, a closing plate 16 is provided behind the display device main body 14a, and the upper end and the lower end thereof are screwed to the three-way frame curtain plate 5. (For example, refer to Patent Document 1).

Japanese Patent Application No. 2002-200484 (paragraphs 0016-0018, FIG. 1 and FIG. 2)

The conventional elevator landing apparatus is configured as described above, and an inspection port 15 is provided on the lower surface 5a of the three-way frame curtain plate 5 for maintenance and inspection of the main body 14a of the display device 14 provided on the back surface of the three-way frame curtain plate 5. Since it was necessary to provide, there existed a problem that design property was bad and cost became high.
In addition, since the inspection port 15 is located on the landing side of the fireproof and smokeproof screen 10, there is also a problem that smoke shielding and flameproofing performance are deteriorated.

  Further, since the maintenance inspection work from the inspection opening 15 takes an upward posture, in addition to the problem that the operation is very difficult, considering sufficient maintainability, the size of the inspection opening 15 becomes large, and the three-side frame vertical frame 4 had a problem that the width B (FIG. 6) of the four also became large.

  The present invention has been made to solve the above-described problems. The landing door is opened, and maintenance and inspection of the display device and its main body can be easily performed from the hoistway side. It is an object of the present invention to provide an elevator hall device that does not require an inspection port on the lower surface.

  An elevator landing apparatus according to the present invention includes a three-sided frame vertical frame provided on both sides of a landing opened in an elevator hoistway and a three-sided frame curtain plate provided across the upper end portions of the three-sided frame vertical frame. A three-way frame, a display device provided on the three-way frame curtain, and a hoistway side of the three-way frame, the upper end has a height that reaches the vicinity of the upper end of the display device, and opens and closes the landing A landing door, a door opening / closing device disposed above the upper end of the landing door, for opening / closing the landing door, and disposed on the hoistway side of the three-way frame curtain plate at a position higher than the upper end of the door opening / closing device. Screen case and a screen opening / closing machine having a fire prevention and smoke prevention screen that is wound and accommodated in the screen case and that is lowered when necessary to close the opening of the hall, and a lower end portion of the fire prevention and smoke prevention screen An upper limit stopper that regulates the upper limit position of the screen weight provided, and the upper limit stopper is removed during maintenance inspection of the display device so that the screen weight can be positioned near the lower end of the door opening and closing device. is there.

  Since the elevator landing device according to the present invention is configured as described above, the landing door is opened, the upper limit stopper of the screen weight is removed, and the screen weight is wound up to the vicinity of the lower end of the door opening / closing device, so that from the hoistway side. Sufficient space for maintenance and inspection of the display device and its main body can be secured, and maintenance inspection from the hoistway side is possible. As a result, there is no need to provide an inspection port on the lower surface of the three-way frame curtain.

Therefore, the width of the three-way frame vertical frame 4 can be reduced, the cost can be reduced and the design of the hall can be improved, and the smoke shielding and flame shielding performance can also be improved.
Further, since the screen case 9 is disposed at a position higher than the upper end of the door opening / closing device 8, maintenance of the switch in the screen case and replacement when the screen is broken can be easily performed from the hoistway side.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1A shows the configuration of the first embodiment, and corresponds to a cross-sectional view taken along the line AA in FIG.
FIG. 1B is a block diagram showing a state in which the upper limit stopper is removed as a procedure for maintaining and inspecting the display device in the configuration of FIG. 1A, and FIG. It is a block diagram which shows the state which rolled up the screen weight to the lower end part vicinity of the door opening / closing apparatus as a next procedure to perform maintenance inspection, and removed the inspection mouth cover of the display instrument.
In these drawings, the same or corresponding parts as those in FIGS. 5 and 6 are denoted by the same reference numerals, and the description thereof is omitted.

  The difference from FIGS. 5 and 6 is that the upper end of the landing door 6 has a height that reaches the vicinity of the upper end of the main body 14a of the display device, and the door opening and closing device 8 is disposed above the upper end of the landing door 6, The screen case 9 is disposed on the hoistway side of the three-way frame curtain plate 5 at a position higher than the upper end of the door opening / closing device 8. Further, with this configuration, the closing plate 16 is configured such that the lower end thereof is bent in the vicinity of the upper end portion of the display device main body 14a, as shown in the drawing, and the lower end and the lower surface of the three-way frame curtain plate. An inspection port lid 17 is provided between the upper and lower ends of the inspection port lid 17 and the upper and lower ends of the inspection port lid 17 are fixed to the lower end of the closing plate 16 and the lower surface 5a of the three-way frame curtain plate by screws or the like.

  In such a configuration, when performing maintenance and inspection of the display device 14 and the main body 14a, the landing door 6 is opened from the hoistway side as shown in FIG. As shown in FIG. 1B, with the upper limit stopper 13 of the screen weight 11 removed, the screen weight 11 is rolled up to the vicinity of the lower end of the door opening and closing device 8 as shown in FIG. Remove the inspection mouth lid 17.

In this state, a space indicated by C in FIG. 1C is secured, so that the maintenance and inspection of the display device 14 and the display device body 14a can be performed from the hoistway side.
Therefore, it is not necessary to provide the inspection port 15 on the lower surface 5a of the three-way frame curtain plate 5, it is possible to reduce the cost and improve the design of the hall, and improve the flame shielding and smoke shielding performance.

Further, as shown in FIG. 2, a switch 9 a is accommodated at the end of the screen case 9, and an inspection lid 9 b is fixed by means such as screwing, but the screen case 9 is attached to the door opening / closing device 8. Since it is arrange | positioned in a position higher than an upper end, the inspection lid | cover 9b can be easily removed from the hoistway side, and maintenance of the internal switch 9a can be performed easily.
Further, even when the fireproof and smokeproof screen 10 is damaged, the replacement work can be easily performed from the hoistway side.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described with reference to the drawings. The configuration in the normal state of the second embodiment is the same as the configuration shown in FIG. 1A, but the configuration at the time of maintenance and inspection of the display device 14 and the main body 14a is different from that of the first embodiment.
FIG. 3 (a) shows a configuration during maintenance and inspection of the display device 14 and the main body 14a according to the second embodiment, and the same or corresponding parts as those in FIG. 1 (a) are denoted by the same reference numerals. Is omitted.

  As shown in this figure, at the time of maintenance and inspection of the display device 14 and the main body 14a, the inspection lid 17 is removed from the state shown in FIG. 1 (a). Further, as shown by the broken line in FIG. The upper limit stopper 13 fixed to the is removed. As shown in the plan view of FIG. 3 (b) and the front view of FIG. 3 (c), the upper end stopper 13 is bent at the upper end 13a in an L shape and the lower end 13b is bent in an L shape in the direction opposite to the upper end. The hole 13c for screwing is formed in the lower end 13b.

  With the upper limit stopper 13 removed, the screen weight 11 is rolled up to the vicinity of the lower end of the door opening / closing device 8 as shown in FIG. 3, and the removed upper limit stopper 13 is shown in the three-sided frame vertical frame 4 below the screen weight 11. Secure with screws. As a result, even if the screen weight 11 is lowered, the lower end of the screen weight 11 is engaged with the upper end 13a of the upper limit stopper 13, and further downward movement is prevented. Therefore, a space similar to C in FIG. Can be ensured, and maintenance and inspection can be performed in a safe state.

Embodiment 3 FIG.
Next, a third embodiment of the present invention will be described with reference to the drawings. FIG. 4A shows the state of the display instrument 14 and the main body 14a in the third embodiment during maintenance and inspection, and shows a state where the inspection opening lid 17 is removed. In addition, the same or corresponding parts as in FIG.

  4 (a) is different from FIG. 1 (a) in that the configuration viewed from the line DD in FIG. 4 (a) is rotated around the fixing screw 13b as shown in FIGS. 4 (d) and 4 (e). While being fixed to the upper frame 12, a safety stopper 18 having the same structure as the upper limit stopper 13 shown in FIGS. 3B and 3C is fixed to the three-way frame vertical frame 4 in the vicinity of the lower end of the door opening / closing device 8. It is the point fixed in the state which can be rotated centering on the screw 18a.

  FIGS. 4B and 4C show how the safety stopper 18 is attached during maintenance and inspection of the display device 14 and the main body 14a. Details will be described later. That is, in the normal state, the upper limit stopper 13 is configured such that the tip of the L-shaped bent portion 13a at the upper end faces the display device 14 as shown in FIG. As shown to a), since it is located below the upper limit stopper 13, even if the screen weight 11 tries to move upward, the upper end of the screen weight 11 comes into contact with the L-shaped bent portion 13a. The weight 11 is restricted so that it can no longer move upward.

  At this time, the safety stopper 18 is in the state shown in FIG. 4 (a), and in the enlarged view as shown in FIG. 4 (b), and its tip is directed to the display device 14 side. Since 11 does not move, the safety stopper 18 does not function. At this time, as shown in FIG. 1A, the inspection opening lid 17 is mounted between the closing plate 16 and the lower surface 5a of the three-way frame curtain plate.

  At the time of maintenance and inspection of the display device 14 and the main body 14a, as shown in FIG. 4 (a), the inspection port lid 17 is removed, and the upper limit stopper 13 is centered on the fixing screw 13b as shown by an arrow in FIG. 4 (e). As shown in FIG. 4 (d), the tip of the L-shaped bent portion 13a is directed toward the one of the three-way frame vertical frames 4 and the safety stopper 18 is illustrated. From the state of 4 (b), as indicated by an arrow in the figure, the fixing screw 18a is rotated about 90 degrees counterclockwise in the figure to obtain the state shown in FIG. 4 (c).

In this state, the screen weight 11 is moved above the safety stopper 18 as shown in FIG. 4A, and then the safety stopper 18 is rotated approximately 90 degrees clockwise from the state of FIG. 4C. To return to the state shown in FIG.
FIG. 4A shows this state. Since the screen weight 11 is regulated by the safety stopper 18 and cannot be lowered below it, a maintenance inspection space indicated by C in FIG. 1C can be secured. Maintenance can be performed safely.

  In the third embodiment, since the safety stopper 18 and the upper limit stopper 13 are respectively disposed, the upper limit stopper 13 is removed during maintenance and inspection as in the second embodiment in which both are used as the upper limit stopper 13. Thus, there is no work of re-attaching to the upper position, and a space for maintenance and inspection can be secured by simply rotating each stopper, so that the maintainability is further improved.

It is a figure explaining the procedure at the time of the maintenance check of the structure of Embodiment 1 of this invention and a display instrument. It is the front view which looked at the boarding gate in Embodiment 1 from the hoistway side. It is a figure explaining the procedure at the time of the maintenance check of the structure of Embodiment 2 of this invention and a display device. It is a figure explaining the procedure at the time of the maintenance check of the structure of Embodiment 3 of this invention and a display instrument. It is a front view which shows the hall entrance / exit of the conventional elevator. It is sectional drawing along the AA line of FIG.

Explanation of symbols

1 hoistway, 2 landing, 4 three-way frame vertical frame, 5 three-way frame curtain, 6 landing door,
7 threshold, 8 door opening and closing device, 9 screen case, 10 fireproof, smokeproof screen, 11 screen weight, 12 upper frame, 13 upper limit stopper, 14 display device,
14a display device body, 16 closing plate, 17 inspection mouth cover, 18 safety stopper.

Claims (3)

  A three-way frame having a three-sided frame vertical frame provided on both sides of a landing opening in the elevator hoistway, and a three-sided frame curtain provided across the upper end of the three-way frame vertical frame; and A display device provided, a landing door provided on the hoistway side of the three-way frame, having a height at which an upper end reaches the vicinity of the upper end of the display device, and opening and closing the landing, and an upper end of the landing door A door opening / closing device disposed at an upper portion for opening / closing the landing door; a screen case disposed on the hoistway side of the three-way frame curtain plate at a position higher than an upper end portion of the door opening / closing device; A screen opening / closing machine having a fireproof and smokeproof screen which is wound and stored and descends when necessary to close the opening of the hall, and an upper limit position of the screen weight provided at the lower end of the fireproof and smokeproof screen is regulated. And a upper limit stopper for, remove the upper limit stopper during maintenance of the display device, landing device for an elevator in which the screen weight is characterized by being adapted to be located in the vicinity of the lower end of the door openers.   A three-way frame having a three-sided frame vertical frame provided on both sides of a landing opening in the elevator hoistway, and a three-sided frame curtain provided across the upper end of the three-way frame vertical frame; and A display device provided, a landing door provided on the hoistway side of the three-way frame, having a height at which an upper end reaches the vicinity of the upper end of the display device, and opening and closing the landing, and an upper end of the landing door A door opening / closing device disposed at an upper portion for opening / closing the landing door; a screen case disposed on the hoistway side of the three-way frame curtain plate at a position higher than an upper end portion of the door opening / closing device; A screen opening / closing machine having a fireproof and smokeproof screen which is wound and stored and descends when necessary to close the opening of the hall, and an upper limit position of the screen weight provided at the lower end of the fireproof and smokeproof screen is regulated. An upper limit stopper that removes the upper limit stopper at the time of maintenance and inspection of the display device and fixes the screen weight below the upper limit stopper by fixing the upper limit stopper to the three-way frame vertical frame in the vicinity of the lower end of the door opening and closing device. An elevator hall device characterized by not being used.   A three-way frame having a three-sided frame vertical frame provided on both sides of a landing opening in the elevator hoistway, and a three-sided frame curtain provided across the upper end of the three-way frame vertical frame; and A display device provided, a landing door provided on the hoistway side of the three-way frame, having a height at which an upper end reaches the vicinity of the upper end of the display device, and opening and closing the landing, and an upper end of the landing door A door opening / closing device disposed at an upper portion for opening / closing the landing door; a screen case disposed on the hoistway side of the three-way frame curtain plate at a position higher than an upper end portion of the door opening / closing device; A screen opening / closing machine having a fireproof and smokeproof screen that is wound and stored and descends when necessary to close the opening of the hall, and is rotatably mounted on the three-way frame vertical frame, upper limit And an upper limit stopper that allows the screen weight to move upward beyond the upper limit position at the rotational position, and the three-way frame vertical above the upper limit stopper and near the lower end of the door opening / closing device. A safety stopper rotatably attached to the frame, the upper limit stopper is set to a rotational position during maintenance inspection of the display device, the safety stopper is rotated to a predetermined position, and the screen weight is attached to the safety stopper. An elevator hall device characterized in that the screen weight is prevented from moving downward from the safety stopper by setting the safety stopper in a rotational position in a state of being moved upward.

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