JP2006168960A - Upward opening door device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an upward opening door device for an elevator capable of surely sealing a gap between a door panel and an entrance without narrowing an effective floor area of a building or damaging design performance of an elevator hall with a simple and inexpensive structure, and capable of effectively achieving restoration after fire in the upward opening door device for the elevator. <P>SOLUTION: This upward opening door device for the elevator is provided with a door mechanism 15 having door panels 15a and 15b confronted with the entrance 5 of the elevator so as to be movable along the vertical direction and opening and closing the entrance 5 by the vertical movement, and packing 21a and 21b for sealing the gap between the door panels 15a and 15b and the entrance 5. The device is further provided with packing for sealing the gap between the door panels 15a and 15b and packing for sealing the gap between the door panel 15b and a doorsill. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a door device installed at an elevator entrance and exit, and more particularly, to an upper opening type door device in which a door panel moves up and down when opened and closed.

  In an elevator that mainly transports luggage and automobiles, a top-opening type door is often used as a door device that opens and closes an entrance / exit provided in an elevator hall. This upper opening type door device includes a door panel arranged to face the entrance and exit, and the entrance and exit is opened and closed by moving the door panel up and down.

  The elevator entrance / exit is located between the elevator hall and the hoistway where the car goes up and down, but between this entrance / exit and the door panel, that is, between the three-way frame of the entrance / exit and the door panel, and the entrance / exit threshold. There is a gap between the door panel. However, when such a gap occurs, when a fire occurs on the elevator hall side, the smoke flows into the hoistway through the gap, and the hoistway works as a chimney that raises the smoke, strengthening the fire power There is a risk.

  For this reason, screen-type or shutter-type smoke shielding facilities are often provided in the elevator hall in front of the entrance / exit. When a fire breaks out on the side of the elevator hall and the fire detector is activated, this smoke shield system is activated by the signal and the screen and shutter are extended so as to cover the front part of the entrance / exit. Smoke is prevented from entering the hoistway from the side.

  However, screen-type and shutter-type smoke shielding equipment requires installation of guide members and the like for its operation in the elevator hall, which requires a relatively wide space for installation at the front part of the entrance / exit, As a result, the effective floor area of the floor of the building is reduced, and the design of the appearance of the elevator hall is impaired. Furthermore, in the screen type and the shutter type, the installation cost is high and it is difficult to expect high smoke shielding performance. In addition, since the restoration work after the fire must be restored in a separate process in conjunction with the restoration of the elevator, it takes time and effort to restore.

  The present invention has been made paying attention to such points, and an object of the present invention is to provide a simple and inexpensive structure for the clearance generated between the door panel and the entrance / exit in an open door device. An elevator top-opening door device that can be sealed without reducing the effective floor area of the building or impairing the design of the elevator hall, and can easily and efficiently achieve recovery after a fire. There is.

The invention of claim 1 is an entrance / exit provided between an elevator hall of a building and a hoistway;
A door mechanism having a door panel that is provided so as to be movable up and down facing the entrance, and that opens and closes by the up and down operation, and a gap generated between the door panel and the entrance when the door panel is closed. It is characterized by comprising a packing for sealing.

  According to a second aspect of the present invention, the entrance is provided with a three-sided frame and a sill, and correspondingly tapered packings are attached to the edge of the side plate of the three-way frame and the edge of the door panel of the door mechanism. The two packings corresponding to each other come into contact with each other according to the door closing operation of the door panel, and the packing of the door panel is separated from the packing of the side plate according to the door opening operation of the door panel.

  According to a third aspect of the present invention, the doorway includes a three-way frame and a sill, the door mechanism is provided on the sill and includes a door panel that moves up and down, and a door closing operation of the door panel is provided on a lower end surface of the door panel. Accordingly, a packing that contacts the upper surface of the sill is provided, and the packing is formed in a hollow pipe shape.

  The invention of claim 4 is characterized in that the entrance / exit includes a three-way frame and a sill, and the door mechanism includes a plurality of door panels arranged to oppose the entrance / exit and to be shifted forward and backward.

  According to a fifth aspect of the present invention, a bracket is provided on the upper portion of the door panel disposed on the front side of the door mechanism so as to engage with an edge portion on the rear side of the curtain plate on the upper side of the three-way frame. The bracket is provided with a packing that contacts the edge on the rear side of the curtain according to the engagement, and a receiving portion having an upright wall is provided at the lower part of the rear surface of the front panel of the door panels arranged at the front and rear. A bracket is provided at the lower part of the rear door panel so as to engage with the standing wall of the receiving portion, and a packing that contacts the standing wall according to the engagement is provided on the bracket. It is characterized by being.

  According to the present invention, the gap generated between the door panel of the top-opening type door device and the entrance / exit is accurately and easily configured with a simple and inexpensive structure, and the effective floor area of the building is reduced or the design of the elevator hall is impaired. And can be easily and efficiently restored after a fire.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 to 3 show a first embodiment. FIG. 1 is a front view of an upper opening type door device viewed from an elevator hall side, and FIG. 2 is a line AA in FIG. FIG. 3 is a sectional view taken along the line BB in FIG.

  An opening 2 is formed in the wall surface 1 of the building, and a three-way frame 3 and a sill 4 are provided for the opening 2, and an elevator entrance / exit 5 is configured by the opening 2, the three-way frame 3, and the sill 4. This entrance / exit 5 is provided between an elevator hall 7 of the building and a hoistway 8 in which a car (not shown) moves up and down.

  The three-way frame 3 is formed in a gate shape as shown in FIG. 1 by a pair of side plates 10 and a curtain plate 11 straddling between the upper ends of these side plates 10. As shown in FIG. 3, the sill 4 is provided at the lower part of the three-way frame 3 so as to be substantially flush with the floor surface of the elevator hall 7 and partly protrudes toward the hoistway 8. An upper opening type door mechanism 15 is provided in the upper part so as to face the entrance / exit 5.

  This top-opening door mechanism 15 includes a pair of door panels 15a and 15b, which are arranged so as to be displaced in the front-rear direction, and these door panels 15a and 15b are driven by a drive mechanism (not shown). The entrance / exit 5 is opened and closed by moving up and down.

  FIG. 3 shows a state when the entrance / exit 5 is closed. At this time, one door panel 15a is arranged in the substantially upper half of the entrance / exit 5 and the other door panel 15b is arranged in the almost lower half of the entrance / exit 5. ing. When the door panels 15a and 15b move upward from this state, the entrance / exit 5 is opened.

  At this time, the other door panel 15b moves upward at a double speed relative to the one door panel 15a. As a result, when the door panels 15a and 15b move to a predetermined position above the entrance / exit 5, the door panels 15a and 15b are accommodated and disposed so as to overlap each other.

  Also, when both door panels 15a and 15b move downward, the other door panel 15b moves downward at a double speed relative to the one door panel 15a. And when one door panel 15a reaches the position of the substantially upper half part of the entrance / exit 5 and the other door panel 15b reaches the position of the substantially lower half part of the entrance / exit 5, the entrance / exit 5 is closed.

  Steps 12 are respectively formed on the side plates 10 on both sides of the three-way frame 3. These step portions 12 are formed horizontally at substantially the middle portion of the edge of the side plate 10 on the hoistway 8 side, and the one door panel 15a is disposed in a space area above the step portion 12 as a boundary, The other door panel 15b is arranged on the rear side of the three-way frame 3 so as to shift its position forward and backward from the door panel 15a.

  Then, as shown in FIG. 2, between the side edge on the rear side of each side plate 10 in the three-way frame 3 and the side edge on the left and right sides of each door panel 15a, 15b, one direction is applied by an elastic material such as rubber. Packings 20a and 20b formed in a long strip shape are provided.

  More specifically, a packing 20a is provided between the side edge portion 10a on the upper side of the step plate 12 of each side plate 10 and the left and right side edge portions of the door panel 15a that moves at a low speed. A packing 20b is provided between a side edge portion 10b on the lower side of the 10 stepped portion 12 and a left and right side edge portion of the door panel 15b that moves at high speed.

The packing 20a is attached so that one side edge thereof continuously extends over the entire length of the side edge portion 10a to the outer surface of the side edge portion 10a on the upper side of the side plate 10, and the other side edge moves at a low speed. elastically contact the side edges of the door panel 15a, the gap G ₁ between the side edges 10a and the door panel 15a is sealed in this contact.

The packing 20b is attached so that one side edge thereof continuously extends over the entire length of the side edge portion 10b to the outer surface of the side edge portion 10b on the lower side of the side plate 10, and the other side edge moves at a high speed. elastically contact the side edges of the door panel 15b, the gap G ₂ between the side edge portion 10b and the door panel 15b is sealed by the contact. And when door panel 15a, 15b moves up and down, each packing 20a, 20b slides with door panel 15a, 15b.

  Further, as shown in FIG. 3, an elastic material such as rubber is provided between the standing wall 11a at the rear edge of the curtain plate 11 in the three-way frame 3 and the upper edge of the door panel 15a that moves at a low speed. A packing 21 formed in a strip shape that is long in one direction is provided by a material.

The packing 21 is fixed to the upper end surface of the door panel 15a by a plurality of screws 25 so that one side edge extends continuously over the entire length section in the longitudinal direction, and the other side edge is the standing wall 11a of the curtain plate 11. elastically contacted, a gap G ₃ between the curtain plate 11 and the door panel 15a at the contact being sealed.

When the door panel 15a moves upward (door opening direction), the packing 21 is separated from the standing wall 11a of the curtain plate 11, and when the door panel 15a moves downward (door closing direction), immediately before the door is closed. packing 21 contacts the upright wall 11a of the curtain plate 11, a gap _{G 3} is sealed.

  A receiving portion 27 is provided at the lower rear portion of the door panel 15a that moves at a low speed, as shown in FIG. The receiving portion 27 has an L-shaped cross section having an upright wall 27a, is continuous along the width direction of the door panel 15a, and is attached so that the upright wall 27a protrudes rearward of the rear surface of the door panel 15a.

  Between the door panel 15a that moves at a low speed and the door panel 15b that moves at a high speed, a packing 22 that is formed in a long strip shape in one direction by an elastic material such as rubber is provided.

The packing 22 is fixed to the upper end surface of the door panel 15b by a plurality of screws 25 so that one side edge continuously extends over the entire length section in the longitudinal direction, and the other side edge projects to the front side of the door panel 15b. elastically contacts the upright wall 27a of the receiving portions 27 provided on the surface lower after the door panel 15a to be moved at a low speed, both door panels 15a at this contact, the G ₄ between 15b opposed are sealed Te.

When the door panels 15a and 15b move upward (in the door opening direction), the other door panel 15b to which the packing 22 is attached has a higher moving speed than the moving speed of the one door panel 15a. When the packing 22 attached to the other door panel 15b is separated from the receiving portion 27 of the one door panel 15a without interfering with the door panel 15a, and the door panels 15a and 15b move downward (door closing direction), immediately before the door closing. packing 22 contacts the upright wall 27a of the receiving portion 27 of the lower rear surface of the door panel 15a, a gap _{G 4} is sealed.

  Further, between the lower end surface of the door panel 15b that moves at high speed and the sill 4, a packing 23 that is formed in a rectangular bar shape having a rectangular cross section and extending in one direction is provided by an elastic material such as rubber. The packing 23 is attached to the lower end surface of the door panel 15b with an adhesive or the like so as to continue over the entire length section.

Under the door closed state of the door panel 15b, the packing 23 on the lower end surface of the door panel 15b is in elastic contact with the upper surface of the sill 4 so that the clearance between the door panel 15b and the sill 4 is reached by this contact. G ₅ is sealed.

When the door panel 15b moves upward (door opening direction) from the door closed state, the packing 23 at the lower end surface thereof is separated from the upper surface of the sill 4, and when the door panel 15b moves downward (door closing direction) packing 23 is in close contact abut with elastic deformation to the upper surface of the sill 4 before close straight, the gap G ₅ is sealed.

As described above, the gaps G _{1 to} G ₅ between the door panels 15 a and 15 b and the entrance / exit 5 are sealed by the packings 20 a, 20 b, 21, 22, and 23, thereby causing a fire on the elevator hall 7 side. The smoke at the time of the operation is blocked and the inflow to the hoistway 8 side is accurately suppressed.

  Therefore, it is not necessary to provide a screen-type or shutter-type smoke shielding facility in the front part of the entrance / exit 5, so that the front part of the entrance / exit 5 can be opened widely, without reducing the effective floor area of the floor, and Costs can be reduced and the design of the appearance of the elevator hall 7 is not impaired.

  In addition, it is only necessary to restore the elevator after a fire, and there is no need to restore screen-type or shutter-type smoke shielding equipment. Therefore, the restoration work can be performed easily and efficiently, and elevator operation can be resumed in a short time. Can be made.

In the first embodiment, the strip-like packings 20a and 20b are attached to the outer surfaces of the side edge portions 10a and 10b on the rear side of the side plates 10 of the three-sided frame 3, respectively. As shown in the embodiment, packings 30a and 30b having a rectangular cross section are respectively attached to the end surfaces of the side edge portions 10a and 10b of the side plates 10 so as to face the front surfaces of the door panels 15a and 15b. The gaps G ₁ and G ₂ may be sealed by contacting the front surfaces of 15a and 15b.

Further, as shown in FIG. 5 as the third embodiment, packings 32a and 32b whose side surfaces are tapered so as to face the front surfaces of the door panels 15a and 15b at the end surfaces of the side edge portions 10a and 10b of the side plates 10, respectively. And packings 33a and 33b whose side surfaces corresponding to the packings 32a and 32b are tapered on the front surfaces of the door panels 15a and 15b, respectively, so that the gaps G ₁ and G ₂ are sealed. Is possible.

In this case, each packing 32a, 32b, 33a, 33b has an inclined surface 34 inclined in the same direction at the same angle, and when the door panels 15a, 15b are moved downward to close the door, Immediately before, the inclined surfaces 34 of the packings 33a and 33b attached to the door panel 15a come into contact with and intimate contact with the inclined surfaces of the packings 32a and 32b attached to the side plate 10, so that the gaps G ₁ and G ₂ are accurately sealed. Is done.

  And when door panel 15a, 15b moves upwards and opens, immediately after the movement start, the inclined surface 34 of packing 33a, 33b attached to the door panel 15a is packing 32a, 32b attached to the side plate 10. Move away from the slope.

  In this embodiment, the packings 33a and 33b attached to the door panel 15a and the packings 32a and 32b attached to the side plate 10 come into contact only when the door panels 15a and 15b move a very short distance. Therefore, the friction between the packings 32a, 32b, 33a, 33b is small, so that the door panels 15a, 15b can be operated smoothly with a light driving force, and the wear of the packings 32a, 32b, 33a, 33b is suppressed. Life can be extended.

  FIG. 6 shows a fourth embodiment. In this embodiment, brackets 37a and 37b having inverted L-shaped cross sections are attached to the upper ends of the door panels 15a and 15b, respectively. Packing 38a, 38b is attached to the inner top surface.

  The brackets 37a and 37b are attached so as to continuously extend over the entire length section in the width direction of the upper ends of the door panels 15a and 15b, and the packings 38a and 38b extend over the entire length section in the longitudinal direction of the brackets 37a and 37b. It is attached to extend continuously.

The bracket 37a attached to the door panel 15a moving at a low speed engages with the upright wall 11a on the rear side of the curtain plate 11 when the door panel 15a is closed, and the packing 38a on the inner top surface of the bracket 37a is engaged. the upright walls 11a in contact with the upper end of the close contact, thereby the gap G ₃ between the upright wall 11a and the door panel 15a of the curtain plate 11 is sealed.

Further, the bracket 37b attached to the door panel 15b that moves at high speed engages with the upright wall 27a of the receiving portion 27 at the lower rear of the door panel 15a when the door panels 15a and 15b are closed, and the bracket 37b packing 38b of the inner top surface is in close contact in contact with the upper end of the upright wall 27a, thereby the gap G ₄ between one door panel 15a and the other door panel 15b is sealed. When the door panels 15a and 15b are opened, the packing 38a of the door panel 15a is separated from the upper end of the standing wall 11a of the curtain plate 11, and the packing 38b of the door panel 15b is separated from the upper end of the standing wall 27a of the receiving portion 27 of the door panel 15a.

According to such a configuration, when the door panels 15a and 15b are closed, the gaps G ₂ and G ₃ can be accurately sealed by the contact between the packings 38a and 38b and the standing walls 11a and 27a. The bracket 37a of the door panel 15a is engaged so as to mesh with the standing wall 11a of the curtain plate 11, and the bracket 37b of the other door panel 15b is engaged so as to mesh with the standing wall 27a of the receiving portion 27 of the one door panel 15a. The front and rear movements of the door panels 15a and 15b can be restricted by the engagement.

FIG. 7 shows a fifth embodiment. In this embodiment, the packing 23 attached to the lower end surface of the door panel 15b that moves at high speed is formed in a hollow pipe shape. When the door panel 15b is closed, the packing 23 is brought into elastic contact with the upper surface of the sill 4 and is in close contact therewith, whereby the gap G4 between the door panel 15b and the sill ₄ is sealed.

According to such a configuration, just before the door panel 15b moves downward and closes the door, the hollow pipe-like packing 23 contacts the upper surface of the sill 4 and deforms so as to be elastically crushed. absorption it is possible to seal the gap G ₅ more reliably, the error or deviation even if there is some error and deviations in stroke width when the door panel 15b is moved up and down in the deformation of the collapse of the packing 23 the gap G ₅ can be properly sealed by.

  By the way, in the above description, an upper opening type door device using two door panels is taken as an example. However, as shown in FIG. 8 as a sixth embodiment, three door panels 15a, 15b, and 15c are used. It is also possible to target an upper opening type door device.

  The door device in this case includes a door panel 15a that moves at a low speed, a door panel 15b that moves at a medium speed, and a door panel 15c that moves at a high speed, and these door panels 15a, 15b, and 15c are arranged with their positions shifted back and forth. ing.

  That is, the side plates 10 of the three-way frame 3 are formed with step portions 12a and 12b in two upper and lower steps, and a door panel 15a that moves at a low speed is disposed in the space area above the upper step portion 12a. A door panel 15b that moves at a medium speed is arranged in a space area above the stepped portion 12b, and a door panel 15c that moves at a high speed is arranged behind the door panel 15b.

  Further, packings (not shown) that contact the left and right side edges of the door panels 15a, 15b, and 15c are provided on the side edges 10a, 10b, and 10c on the rear side of the side plate 10, and move at a low speed. A packing 40a that contacts the upright wall 11a of the curtain plate 11 of the three-way frame 3 is attached to the upper end surface of the door panel 15a via a screw 25, and the door panel 15a that moves at low speed is attached to the upper end surface of the door panel 15b that moves at medium speed. A packing 40b that contacts the upright wall 27a of the receiving portion 27 provided at the lower part of the rear surface is attached via a screw 25, and is provided at the upper end surface of the door panel 15c that moves at high speed, and at the lower part of the rear surface of the door panel 15b that moves at medium speed. The packing 40c that contacts the upright wall 27a of the receiving portion 27 is attached via the screw 25, and the door panel 15c moves at a higher speed. Packing 23 contacting the upper surface of the sill 4 is mounted on the lower end face.

  Even in such a configuration, the gaps formed between the door panels 15a, 15b, and 15c and the entrance / exit 5 are sealed with the packing (not shown) and the packings 40a, 40b, 40c, and 23 shown in the figure, and the elevator hall 7 side. Therefore, the flow of smoke when a fire occurs can be blocked and the inflow to the hoistway 8 can be accurately suppressed.

  Note that the present invention is not limited to the case of using two door panels or three door panels, and can be similarly applied to a top-opening door device in the case of using one door panel or four or more door panels. It is.

The front view which looked at the upper opening type door apparatus which concerns on 1st Embodiment of this invention from the elevator hall side. Sectional drawing which follows the AA line in FIG. Sectional drawing which follows the BB line in FIG. Sectional drawing which shows 2nd Embodiment of this invention. Sectional drawing which shows 3rd Embodiment of this invention. Sectional drawing which shows 4th Embodiment of this invention. Sectional drawing which shows 5th Embodiment of this invention. Sectional drawing which shows 6th Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Wall surface 2 ... Opening 3 ... Three-way frame 4 ... Sill 5 ... Entrance / exit 7 ... Elevator hall 8 ... Hoistway 10 ... Side plate 10a, 10b, 1c ... Side edge 11 ... Curtain plate 11a ... Standing wall 15 ... Door mechanism 15a . 15b. 15c ... Door panel 20a. 20b. 21.2.23 ... Packing 27 ... Receiving part 27a ... Standing wall 30a. 30b. 32a. 32b. 33a. 33b ... packing 37a. 37b ... Bracket 38a. 38b. 40a. 40b. 40c ... packing

Claims (5)

A boarding gate provided between the elevator hall and the hoistway of the building,
A door mechanism that is provided so as to be movable up and down facing the entrance and exit, and has a door panel that opens and closes the entrance and exit by the up and down operation,
A packing for sealing a gap generated between the door panel and the entrance when the door panel is closed;
An elevator top-opening door device characterized by comprising:   The entrance / exit includes a three-sided frame and a sill, and a corresponding packing having a taper shape is attached to the edge of the side plate of the three-sided frame and the edge of the door panel of the door mechanism, respectively, and the door panel is closed. 2. The elevator according to claim 1, wherein the two packings corresponding to each other come into contact with each other, and the packing of the door panel is separated from the packing of the side plate according to a door opening operation of the door panel. Open door device.   The entrance / exit includes a three-way frame and a sill, and the door mechanism includes a door panel that is arranged on the sill and moves up and down, and an upper surface of the sill according to a door closing operation of the door panel. The elevator door opening type door device according to claim 1, wherein a packing is provided in contact with the elevator, and the packing is formed in a hollow pipe shape.   2. The elevator according to claim 1, wherein the entrance / exit includes a three-way frame and a sill, and the door mechanism includes a plurality of door panels arranged so as to be shifted in the front-rear direction so as to face the entrance / exit. Open door device.   At the upper part of the door panel arranged on the front side of the door mechanism, a bracket is provided to be engaged with the edge of the rear side of the curtain plate at the upper part of the three-way frame. Packing that contacts the rear edge of the curtain plate is provided, and a receiving portion having a standing wall is provided at the lower rear surface of the front door panel among the front and rear door panels, and the rear door panel is provided. A bracket is provided at a lower portion of the bracket so as to be engaged with an upright wall of the receiving portion, and a packing that contacts the upright wall according to the engagement is provided on the bracket. Item 5. The top-opening door device according to Item 4.

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