JP4689242B2 - Elevator door equipment - Google Patents

Description

  The present invention relates to an elevator door device having a shielding function for shielding a gap around a door body when the door is closed.

  In a conventional elevator door device, the smoke shielding plate attached to the door body contacts the three-way frame, so that the gap between the door body and the three-way frame is shielded when the door is closed (when all doors are closed). (For example, see Patent Document 1).

Japanese Patent No. 2715828

  However, in the conventional shielding structure as described above, since it is necessary to use a special three-way frame, in order to apply to an existing elevator, a relatively large construction such as replacement of the three-way frame is required. It takes a lot of cost and time.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an elevator door device that can easily add a shielding function with a simple structure.

  An elevator door device according to the present invention includes a frame portion provided at an upper portion, a side portion, and a floor portion of an elevator doorway, a door body that opens and closes the doorway, and an attachment portion of at least one of the frame portion and the door body. The shield includes a shield that is attached and shields the gap between the door main body and the frame when the door is closed. The shield includes a magnet that is attracted to the mount by magnetic force.

  In the elevator door device of the present invention, since the magnet provided on the shield is attracted to the mounting portion by its magnetic force, the shield can be temporarily fixed to the mounting portion when the shield is mounted, thereby reducing the mounting effort. can do. In addition, the number of means for permanently fixing the shield can be reduced. Therefore, the shielding function can be easily added with a simple structure.

The best mode for carrying out the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
1 is a front view showing an elevator hall according to Embodiment 1 of the present invention, FIG. 2 is a sectional view taken along line II-II in FIG. 1, and FIG. 3 is a sectional view taken along line III-III in FIG. . 2 and 3 show a state before adding a shield according to the first embodiment.

  In the figure, a landing entrance 1 is provided at the landing. A steel three-way frame 2 that is a frame portion is fixed to the upper and side portions of the landing entrance 1. The three-way frame 2 has a pair of vertical frames 2 a and 2 b provided on the side of the landing entrance 1 and an upper frame 2 c provided on the upper portion of the landing entrance 1. The hall entrance 1 is opened and closed by a pair of steel door bodies 3.

  A landing threshold 4 as a frame is fixed to the floor of the landing entrance 1. On the upper surface of the landing sill 4, a sill groove 4 a parallel to the frontage direction of the landing doorway 1 is provided. A plurality of door legs 5 to be inserted into the sill grooves 4 a are fixed to the lower end portion of the door body 3. A door hanger 6 is fixed to the upper portion of the door body 3. The door body 3 is suspended from a door rail (not shown) fixed to the three-way frame 2 via a door hanger 6.

  Next, the shielding body arranged in the IV part of FIG. 2 will be described. 4 is a cross-sectional view showing a state in the middle of attachment of the side shield to the IV portion of FIG. 2, and FIG. 5 is a cross-sectional view showing a state after the side shield of FIG. 4 is attached. The side shield 7, which is a shield, has a substantially L-shaped cross section, a metal side support member (attachment metal) 8, a side magnet 9 attached to the side support member 8, and a side support member 8. And a side airtight member 10 made of an elastic body (for example, rubber) attached to the.

  The side support member 8 is fixed to the door body 3 by a plurality of screws 11 that are fasteners. The end in the width direction of the door body 3, which is the attachment portion of the side shield 7, that is, the end of the door pocket is bent into a U-shaped cross section. Thereby, the fastening surface 3a which faces a hoistway (opposite a cage | basket | car when landing) is provided in the width direction edge part of the door main body 3. As shown in FIG. The fastening surface 3a is provided with a plurality of screw holes 3b into which the screws 11 are screwed. The side support member 8 is provided with a joining surface (fin portion) 8a that is superimposed on the fastening surface 3a. The joint surface 8a is provided with a plurality of through holes 8b through which the screws 11 are inserted.

  The side magnets 9 are attracted to the end surface in the width direction of the door body 3 (the end surface on the door pocket side) by a magnetic force. Further, the side magnet 9 is divided in the longitudinal direction of the side shield 7 even if it is composed of one magnet continuous in the longitudinal direction of the side shield 7, that is, the height direction of the door body 3. You may comprise with a several magnet. Further, when a plurality of magnets are used, they may be arranged continuously or may be arranged at intervals.

  The side airtight member 10 is provided continuously in the longitudinal direction of the side shield 7. However, the side airtight member 10 may be divided into a plurality in the longitudinal direction of the side shield 7. Further, the base end of the side airtight member 10 is sandwiched between the side support member 8 and the side magnet 9. Furthermore, the front-end | tip part of the side part airtight member 10 contacts the vertical frame 2b, and is slightly elastically deformed when a door is closed. Thereby, the side part shielding body 7 shields the clearance gap between the width direction edge part of the door main body 3, and the vertical frame 2b in a door closed state. Such a side shield 7 is also attached to the end portion of the door body 3 facing the vertical frame 2a.

  Next, the shield disposed in the VI part of FIG. 3 will be described. 6 is a cross-sectional view showing a state in the middle of attachment of the upper shield to the VI part of FIG. 3, and FIG. 7 is a cross-sectional view showing a state after the attachment of the upper shield of FIG. The upper shield 12 which is a shield has a substantially L-shaped cross section and is made of a metal upper support member (attachment metal) 13, an upper magnet 14 attached to the upper support member 13, and an elastic attached to the upper support member 13. And an upper airtight member 15 made of a body (such as rubber).

  The upper shield 12 is attached to the upper frame 2c which is an attachment part. Specifically, the upper support member 13 is fixed to the hoistway side end portion of the upper frame 2c by a plurality of screws 16 which are fasteners. A plurality of screw holes 2d into which screws 16 are screwed are provided in the hoistway side end face of the upper frame 2c. The upper support member 13 is provided with a plurality of through holes 13a through which the screws 16 are inserted.

  The upper magnet 14 is attracted to the upper surface of the upper frame 2c by a magnetic force. Further, even if the upper magnet 14 is composed of one magnet continuous in the longitudinal direction of the upper shield 12, that is, the longitudinal direction of the upper frame 2 c, it is a plurality of magnets divided in the longitudinal direction of the upper shield 12. It may be configured. Further, when a plurality of magnets are used, they may be arranged continuously or may be arranged at intervals.

  The upper airtight member 15 is provided continuously in the longitudinal direction of the upper shield 12. However, the upper airtight member 15 may be divided into a plurality in the longitudinal direction of the upper shield 12. Moreover, the front-end | tip part of the top airtight member 15 contacts the front upper end part of the door main body 3, and is slightly elastically deformed in a door-closed state. Thereby, the upper shield 12 shields the gap between the upper end of the door body 3 and the upper frame 2c when the door is closed.

  Next, the shield disposed in the VIII part in FIG. 3 will be described. 8 is a cross-sectional view showing a state in the middle of attachment of the lower shield to the portion VIII in FIG. 3, and FIG. 9 is a cross-sectional view showing a state after the attachment of the upper shield in FIG. The lower shield 17 which is a shield is made of a metal-made flat plate-like lower support member (attachment metal) 18, a lower magnet 19 attached to the lower support member 18, and an elastic body attached to the lower support member 18 ( And a lower airtight member 20 made of rubber or the like.

  The door body 3 has a lower reinforcing member 22 made of steel. The lower reinforcing member 22 is fixed to the lower end portion of the surface of the door body 3 on the hoistway side. The lower shield 17 is attached to a lower reinforcing member 22 that is an attachment portion. Specifically, the lower support member 18 is fixed to the lower reinforcing member 22 by a plurality of screws 21 that are fasteners. The lower reinforcing member 22 is provided with a plurality of screw holes 22a into which the screws 21 are screwed. The lower support member 18 is provided with a plurality of through holes 18a through which the screws 21 are inserted.

  The lower magnet 19 is attracted to the lower reinforcing member 22 by a magnetic force. The lower magnet 19 may be composed of a single magnet continuous in the longitudinal direction of the lower shield 17, that is, the width direction of the door body 3, or may be a plurality of magnets divided in the longitudinal direction of the lower shield 17. It may be configured. Further, when a plurality of magnets are used, they may be arranged continuously or may be arranged at intervals.

  The lower airtight member 20 is provided continuously in the longitudinal direction of the lower shield 17. However, the lower airtight member 20 may be divided into a plurality in the longitudinal direction of the lower shield 17. Moreover, the front-end | tip part (lower end part) of the lower airtight member 20 contacts the upper surface of the landing sill 4 in a door closed state, and is elastically deformed slightly. Thereby, the lower shielding body 17 shields the gap between the lower end portion of the door body 3 and the landing sill 4 when the door is closed. Specifically, the lower airtight member 20 contacts the upper surface of the landing sill 4 on the landing side with respect to the sill groove 4a.

  When the shields 7, 12, and 17 are attached to an existing door device, the shields 7, 12, and 17 are first attracted to the attachment portion by the magnetic force of the magnets 9, 14, and 19. Then, the screw holes 3b, 2d, and 22a are processed in the mounting portion using the through holes 8b, 13a, and 18a as guides. Thereafter, the shields 7, 12, and 17 are permanently fixed by screwing the screws 11, 16, and 21 into the screw holes 3b, 2d, and 22a.

  According to such a door device, the shields 7, 12, and 17 can be temporarily fixed by the magnetic force of the magnets 9, 14, and 19 when the shields 7, 12, and 17 are attached, thereby improving work efficiency. Can do. Further, since the shields 7, 12, and 17 are held not only by the screws 11, 16, and 21 but also by the magnetic force of the magnets 9, 14, and 19, the number of the screws 11, 16, and 21 can be reduced. The trouble of processing the screw holes 3b, 2d, and 22a can be reduced. Therefore, the shielding function can be easily added to the existing door device with a simple structure.

  Further, since the joint surface 8a of the side support member 8 is joined to the fastening surface 3a which is the folded portion of the door body 3 and screwed, the processing of the screw hole 3b is easily performed straight from the hoistway side. be able to. Furthermore, the processing of the screw holes 2d and 22a can be easily performed straight from the hoistway side.

In the above example, the screws 11, 16, and 21 are shown as fasteners, but the fasteners are not limited to screws.
Moreover, the fastener can be omitted by using a magnet having a sufficiently strong magnetic force.
Furthermore, in the above example, the side shield 7 is attached to the door main body 3 side, but may be attached to the vertical frame side so as not to hinder the opening and closing operation of the door main body.
Furthermore, although the upper shield 12 is attached to the upper frame 2c side in the above example, it may be attached to the door body side.
In the above example, the landing door device is shown, but the present invention may be applied to a car door device.
Furthermore, in the above example, the shield having the same structure is used for the upper part, the side part, and the lower part of the entrance / exit, but the shield of the present invention may be applied to only a part of the entrance / exit.
Furthermore, although the center opening type door device is shown in the above example, the present invention can also be applied to a single opening type door device. Further, the number of door bodies is not limited to two.

It is a front view which shows the boarding place of the elevator by Embodiment 1 of this invention. It is sectional drawing which follows the II-II line | wire of FIG. It is sectional drawing which follows the III-III line of FIG. It is sectional drawing which shows the state in the middle of attachment of the side part shield to the IV section of FIG. It is sectional drawing which shows the state after attachment of the side part shield of FIG. It is sectional drawing which shows the state in the middle of attachment of the upper shield to the VI section of FIG. It is sectional drawing which shows the state after attachment of the upper shield of FIG. It is sectional drawing which shows the state in the middle of attachment of the lower shield to the VIII part of FIG. It is sectional drawing which shows the state after attachment of the upper shield of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Boarding entrance / exit, 2 Three-way frame (frame part), 3 Door main body, 4 Boarding sill (frame part), 7 Side shield, 8 Side support member, 9 Side magnet, 10 Side airtight member, 11, 16 , 21 Screw (fastener), 12 Upper shield, 13 Upper support member, 14 Upper magnet, 15 Upper airtight member, 17 Lower shield, 18 Lower support member, 19 Lower magnet, 20 Lower airtight member.

Claims (3)

A frame provided at the upper, side and floor of the elevator doorway;
A door body that opens and closes the doorway, and a shield that is attached to at least one attachment portion of the frame portion and the door body, and shields a gap between the door body and the frame portion when the door is closed. With body
The door device for an elevator, wherein the shield includes a magnet that is attracted to the mounting portion by a magnetic force.   The shield further includes a support member to which the magnet is attached, and an airtight member that is attached to the support member and is an elastic body that contacts the other of the frame portion and the door body. The elevator door device according to claim 1.   The elevator door device according to claim 2, wherein the support member is attached to the attachment portion by a fastener.

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