JP5520085B2 - Elevator door equipment - Google Patents

Description

  The present invention relates to an elevator door device, and more particularly to a smoke shielding structure between a door and a sill.

  The smoke-proofing structure at the lower part of the door in the conventional elevator system consists of a sill part at the lower horizontal edge of the passenger opening and a sill gasket seal surface that is attached to the sill part and is tapered toward the ends of both sides. A sill gasket having a sill bracket seal surface provided in the door and having a sill bracket seal surface coinciding with a complementary seal surface of the sill gasket seal surface in a parallel movement direction, with the door closed The sill bracket seal surface of the sill bracket is in contact with the sill gasket seal surface of the sill gasket and shields the gap between the door and the sill portion (see, for example, Patent Document 1).

Japanese Patent Laid-Open No. 06-321466

In the conventional elevator system, when the door is opened and closed, the sill bracket seal surface of the sill bracket is separated from the sill gasket seal surface of the sill gasket. Figured.
However, if foreign matter adheres to the sill gasket seal surface of the sill gasket, the foreign matter is sandwiched between the sill bracket seal surface and the sill gasket seal surface when the door is fully closed. There was a problem that the smoke shielding effect was reduced due to damage.

  The present invention has been made to solve such a problem, and in the fully closed state of the door, the lower airtight material is in contact with the bottom surface of the smoke shielding groove formed in the sill, and the smoke shielding structure at the lower part of the door is provided. It is constructed to extend the life by suppressing the wear of the lower airtight material, and it is possible to remove foreign matters on the bottom surface of the smoke shielding groove at the time of door opening and closing operation, and the smoke shielding effect at the bottom of the door is long-lasting An object is to obtain an elevator door device that can be secured.

An elevator door device according to the present invention includes an entrance / exit frame provided around an entrance / exit, a door disposed on a hoistway side of the entrance / exit frame to open / close the entrance / exit, and the door unit located at a lower portion of the door. A sill disposed on the hoistway side of the floor of the doorway, and a shield provided in the upper surface of the sill, recessed so that the groove depth gradually increases from the door end to the door pocket and extends in the frontage direction. The smoke groove and the amount of protrusion from the lower surface of the door are gradually extended from the door end to the door pocket side, and the extended end is opposed to the smoke shield groove and extends over the whole area in the frontage direction of the door. A lower airtight material that contacts the bottom surface of the smoke-shielding groove when the door is fully closed, and a lower part of the door-contacting side of the door, and is in contact with the bottom surface of the smoke-shielding groove in conjunction with the opening and closing operation of the door. And a cleaning brush having a brush portion that travels. The cleaning brush has a main body attached to the door so as to be rotatable about an axis orthogonal to the frontage direction and the vertical direction, and extends from the main body to the lower surface of the door, and the smoke shielding groove A support arm in which the brush portion is implanted so as to be opposed to, and a biasing means that biases the main body portion to rotate in a direction in which the brush portion is pressed against the bottom surface of the smoke shielding groove, It has.

According to the present invention, the smoke shielding groove is recessed in the upper surface of the sill so that the groove depth gradually increases from the door end to the door pocket and extends in the frontage direction. The lower airtight material is extended over the entire area in the doorway direction so that the amount of protrusion from the lower surface of the door gradually becomes deeper from the door end to the door pocket and the extended end faces the smoke shielding groove. When the door is fully closed, it touches the bottom of the smoke barrier. Therefore, the wear of the lower hermetic material is reduced, and the life of the lower hermetic material is extended.
In addition, since the cleaning brush is disposed at the lower part of the door contact side so that the brush portion slides on the bottom surface of the smoke shielding groove when the door is opened and closed, the brush portion is blocked when the door is opened and closed. Remove foreign material adhering to the bottom of the smoke channel. Therefore, foreign matters are not caught between the lower airtight material and the smoke shielding groove, so that a decrease in the smoke shielding effect and a decrease in the lifetime of the lower airtight material due to the damage of the lower airtight material can be suppressed.

It is the front view which looked at the landing door apparatus of the elevator which concerns on one embodiment of this invention from the landing side. It is II-II arrow sectional drawing of FIG. FIG. 3 is a cross-sectional view taken along the line III-III in FIG. 1. FIG. 4 is a cross-sectional view taken along arrow IV-IV in FIG. 1. It is principal part sectional drawing which shows the door fully closed state of the landing door apparatus of the elevator which concerns on one embodiment of this invention. It is principal part sectional drawing which shows the door half open state of the elevator landing door apparatus which concerns on one embodiment of this invention. It is principal part sectional drawing which shows the elevator landing door apparatus which concerns on one embodiment of this invention.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of an elevator door device of the invention will be described with reference to the drawings.

  1 is a front view of an elevator landing door device according to an embodiment of the present invention as seen from the landing side, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, and FIG. 3 is an arrow along III-III in FIG. 4 is a sectional view taken along the line IV-IV of FIG. 1, FIG. 5 is a sectional view of the main part showing the door fully closed state of the elevator landing door device according to the embodiment of the present invention, and FIG. FIG. 7 is a fragmentary sectional view showing a door half-open state of an elevator landing door device according to an embodiment of the present invention, and FIG. 7 is a fragmentary sectional view showing an elevator landing door device according to an embodiment of the present invention. .

  1 to 7, an opening 4 is formed in a concrete wall 3 which is a building frame so as to communicate with a hoistway 1 and a landing 2 where a car (not shown) ascends and descends. Is configured. A three-way frame 5 as an entrance / exit frame is installed in the opening 4. The three-sided frame 5 is spaced apart in the opening direction of the opening 4, parallel to each other and vertically extending vertically from the floor surface 2 a, and the upper side of the pair of vertical frames 6 And an upper frame 7 extending in the frontage direction so as to connect the two.

  The landing door 8 is suspended by a door rail (not shown) attached to the wall of the wall 3 on the side of the hoistway 1 on the upper portion of the opening 4 so as to extend in the frontage direction. The opening 4 is installed on the side of the road 1 so as to be openable and closable. A landing sill 9 is attached to the hoistway 1 side of the three-way frame 5 of the floor 2a so as to extend in the frontage direction. The sill groove 10 is recessed in the landing sill 9 so as to extend in the frontage direction at a predetermined groove depth. A smoke shielding groove 11 is recessed in the sill groove 10 on the surface of the sill sill 9 so as to extend in the frontage direction in parallel with the sill groove 10. The smoke shielding groove 11 is formed in a tapered shape in which the groove depth gradually increases from the center (door end) to both sides in the frontage direction (door pocket side).

  The landing door 8 includes a door panel 12 and a lower reinforcing member 13 fixed to the lower end portion of the back surface of the door panel 12. Legs 14 of the two doors inserted into the sill groove 10 are fixed to the lower reinforcing member 13 so as to be separated from each other in the width direction of the landing door 8, that is, the frontage direction. The cleaning brush 16 is fixed to the door end side end portion of the lower reinforcing member 13. A lower airtight member 15 made of an elastic body such as rubber is fixed to the lower reinforcing member 13 except for the door leg 14 and the cleaning brush 16, and extends over the entire area in the front door direction of the landing door 8. And the extension amount from the lower surface of the door panel 12 of the lower airtight material 15 becomes the taper shape which becomes long gradually from the door stop end side toward the door pocket end. The taper-shaped inclination of the extension amount of the lower airtight material 15 from the lower surface of the door panel 12 coincides with the taper-shaped inclination of the bottom surface of the smoke shielding groove 11, and when the landing door 8 is fully closed, The extended end is in contact with the bottom surface of the smoke shield groove 11.

  The cleaning brush 16 has a main body portion 17 attached to the lower reinforcing member 13 at a corner on the door-contacting side and the lower end side of the back surface of the door panel 12 so as to be rotatable about an axis perpendicular to the frontage direction and the vertical direction, A support arm 18 extending from the main body portion 17 along the lower surface of the door panel 12 to reach the upper portion of the smoke shielding groove 11, and a brush portion 19 implanted on the lower surface of the support arm 18 and arranged in the frontage direction. It is equipped with. A pressing spring 20 as an urging means is disposed between the support arm 18 and the lower reinforcing member 13, and rotates the main body portion 17 in a direction in which the brush portion 19 is pressed against the bottom surface of the smoke shielding groove 11. It is energized as follows.

  The smoke shielding structure on the upper side and the door pocket side of the landing door 8 employs a well-known structure, and the description thereof is omitted here.

Next, the operation of the landing door apparatus configured as described above will be described.
The landing door 8 is suspended by a door rail attached to the wall 3 on the hoistway 1 side of the wall 3 at the top of the opening 4 so as to extend in the frontage direction, and the door leg 14 is stored in the sill groove 10. Has been. The extending end of the lower airtight member 15 extends in the frontage direction relative to the upper side of the smoke shielding groove 11. Further, the urging force of the pressing spring 20 acts on the support arm 18 of the cleaning brush 16, and the brush portion 19 presses the bottom surface of the smoke shielding groove 11.

Therefore, the landing door 8 is guided by the door rail to open and close the opening 4. At this time, the door leg 14 travels while being guided by the threshold groove 10, and swinging of the lower side of the landing door 8 is suppressed.
In addition, since the taper-shaped inclination of the amount of extension of the lower airtight material 15 from the lower surface of the door panel 12 coincides with the taper-shaped inclination of the bottom surface of the smoke shielding groove 11, when the landing door 8 is opened and closed, The extending end of the airtight member 15 moves in parallel on the upper portion of the smoke shielding groove 11 without contacting the bottom surface of the smoke shielding groove 11. Further, since the urging force of the pressing spring 20 is constantly acting on the support arm 18 of the cleaning brush 16, the brush portion 19 is interlocked with the opening / closing operation of the landing door 8, as shown in FIG. The vehicle travels in contact with the bottom surface of the smoke shielding groove 11, and the foreign matter attached to the bottom surface of the smoke shielding groove 11 is removed.

  When the landing door 8 is fully closed, the extended end of the lower airtight material 15 is in contact with the bottom surface of the smoke shielding groove 11, and the tip side of the brush portion 19 is in close contact with the door end side end of the lower airtight material 15, As shown in FIG. 5, a smoke shielding structure under the landing door 8 is constructed.

  According to the present invention, the smoke shielding groove 11 is formed in the landing threshold 9 such that the groove depth gradually becomes deeper from the door end to the door pocket side. The lower airtight member 15 is extended over the entire area in the width direction of the landing door 8 so that the amount of extension from the lower surface of the door panel 12 gradually increases from the door end to the door pocket. And, when the landing door 8 is fully closed, the lower airtight material 15 is in contact with the smoke shielding groove 11 and the lower smoke-shielding structure is constructed, so that the wear of the lower airtight material 15 is remarkably reduced and the life is extended. Figured.

  Further, since the cleaning brush 16 is disposed at the lower end of the door end of the landing door 8 so that the brush portion 19 can come into contact with the bottom surface of the smoke blocking groove 11, when the landing door 8 is opened and closed, Foreign matter adhering to the bottom surface can be removed. Therefore, when the landing door 8 is fully closed, foreign matter is prevented from being caught between the lower airtight material 15 and the smoke shielding groove 11, and the smoke shielding effect and the life are reduced due to the damage of the lower airtight material 15. It can be suppressed.

  Further, the cleaning brush 16 is configured to rotate the main body portion 17 in a direction in which the brush portion 19 is pressed against the bottom surface of the smoke shielding groove 11 by the urging force of the pressing spring 20. Therefore, when the landing door 8 is opened and closed, the main body portion 17 rotates in accordance with the taper shape of the smoke shielding groove where the groove depth gradually increases from the door end to the door pocket side, and the smoke shielding groove 11 of the brush portion 19 is rotated. Contact with is ensured. Thereby, the foreign material adhering to the bottom face of the smoke shielding groove | channel 11 can be removed reliably.

In addition, in the said embodiment, although applied to the door apparatus of a double sliding door, even if it applies to the door apparatus of a single sliding door, there exists the same effect.
Moreover, in the said embodiment, although applied to a landing door apparatus, there exists the same effect, even if it applies to a car door apparatus.
In the above embodiment, the push spring is disposed between the support arm and the lower reinforcing member, and the main body is rotated about the axis. However, it is attached to the main body using a torsion coil spring. Then, it may be rotated around the axis.

  DESCRIPTION OF SYMBOLS 1 Hoistway, 2a Floor surface, 4 Opening part (entrance / entrance), 5 Three-sided frame (entrance / entrance frame), 8 landing door, 9 landing sill, 11 smoke barrier, 15 lower airtight material, 16 cleaning brush, 17 main body part, 18 Support arm, 19 brush portion, 20 push spring (biasing means).

Claims (1)

An entrance / exit frame provided around the entrance / exit,
A door disposed on the hoistway side of the entrance / exit frame to open and close the entrance / exit,
A sill disposed on the hoistway side of the floor of the doorway so as to be located under the door;
On the upper surface of the sill, the groove depth gradually becomes deeper from the door end to the door pocket side, and the smoke shielding groove recessed so as to extend in the frontage direction;
The amount of protrusion from the lower surface of the door gradually increases from the door end to the door pocket side, and the extended end is opposed to the smoke shielding groove so as to extend over the whole area in the frontage direction of the door. A lower airtight material in contact with the bottom surface of the smoke shield groove when fully closed;
Is arranged in a lower portion of the side doorstop of the door, e Bei a cleaning brush having a brush portion which runs in contact with the bottom surface of the Saegikemurimizo in conjunction with the opening and closing operation of the door, and
The cleaning brush has a main body portion attached to the door so as to be rotatable about an axis orthogonal to the frontage direction and the vertical direction, and extends from the main body portion to the lower surface of the door and is opposed to the smoke shielding groove. A support arm in which the brush portion is implanted, and biasing means for biasing the main body portion to rotate in a direction in which the brush portion is pressed against the bottom surface of the smoke shielding groove. An elevator door device characterized by that.

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