JP4494105B2 - Elevator landing equipment - Google Patents

Description

  The present invention relates to an elevator landing device, and more particularly to an elevator landing device incorporating a fireproof and smokeproof screen.

FIG. 8 is a schematic diagram showing a configuration of a general landing device for an elevator, and FIG. 9 is a schematic diagram showing the configuration of the landing device of FIG. 8 as viewed from above. The lower side indicated by indicates the landing side. As shown in these drawings, the hall device is basically constituted by a three-sided frame vertical frame 2, a three-sided frame upper frame 3 and a landing door 1.
Further, the three-way frame vertical frame 2 has a pair of hall-side vertical frame surface plate 2a and hoistway-side vertical frame surface plate 2b bent in a substantially U-shaped cross section with an interval 8 serving as an elevating groove of the fire and smoke screen 9. And are connected by a connecting plate 4 on the back side.

  In addition, stud bolts 5 are welded to the back sides of the landing-side vertical frame front plate 2a and the hoistway-side vertical frame front plate 2b so as to be located on both sides of the hoisting groove 8, respectively. Through holes (not shown) respectively formed at both ends of the bent guide rail 7 are inserted and fixed by the nut 6 so that the elevating groove 8 is kept at a predetermined interval, and the fire and smoke screen 9 The guide rail which guides an edge part to an up-down direction was formed. (For example, refer to Patent Document 1).

Japanese Patent Application No. 2003-363505

  A conventional elevator landing apparatus is configured as described above, and a mechanism for adjusting the width dimension of the elevating groove 8 of the fireproof smokeproof screen and holding the guide rail 7 at a predetermined interval is provided by the stud bolt 5 and the nut 6. Since it was a fixed structure, there were the following problems.

  (1) Since many stud bolts are positioned and welded to the vertical frame front plate, workability is poor. In addition, welding of stud bolts varies in workability, and welding may occur when a nut is fastened. Note that fire resistance may not be ensured if the welding failure is not noticed at the time of construction.

(2) When the depth W of the guide rail 7 is increased, a bending die or the like is required, and workability is poor.
(3) Since the guide rail 7 and the connecting plate 4 are in a free relationship, in the case of a fire or the like, vertical warping occurs in the three-way frame vertical frame 2 inwardly at the entrance / exit width, and fire prevention smoke prevention performance cannot be secured. .

  The present invention has been made to solve the above-described problems, and it is an object of the present invention to provide an elevator landing apparatus that has good workability, can be manufactured at low cost, and can improve fireproof and smokeproof performance. And

The elevator hall device according to the present invention includes a pair of vertical frame front plates whose sections are bent in a substantially U-shape, arranged in parallel at a predetermined interval, and the fire-proof smoke-proof screen is arranged so as to be vertically movable at the interval. A three-sided frame vertical frame provided at the elevator hall, a connecting plate that joins and reinforces the pair of vertical frame front plates, and each vertical frame front plate at both sides of the interval. A guide rail that is welded and fixed at one end, and the other end is bent toward a landing side or hoistway side of the elevator to form a fin portion, and guides the end portion of the fireproof and smokeproof screen in the vertical direction ; An anti-deformation bracket in which one end is fixed to the connecting plate and the other end is opposed to the fin portion of the guide rail via a gap to prevent vertical warping of the vertical frame front plate to the inside of the entrance / exit width. with the door, fin of each guide rail overlap each other Is a Migihitsuji shape, is obtained so as to secure the two fin portions with fastening members.

  Since the elevator landing apparatus according to the present invention is configured as described above, it has good workability, can be manufactured at low cost, and can improve fire and smoke resistance.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram illustrating a configuration of a three-sided frame vertical frame corresponding to the one located on the right side of FIG. 9 among the three-sided frame vertical frame in the first embodiment. The road side, the lower side of the figure shows the landing side.

Moreover, FIG. 2 shows the structure seen from the right side of FIG. 1, and the hoistway side and the landing side are the same as FIG. In these drawings, the same or corresponding parts as in FIG. The difference from FIG. 9 is the structure of the guide rail 10 and the fixing method to the three-way frame vertical frame.
That is, the guide rail 10 is configured by joining two reinforcing plates 11 and 12, and one reinforcing plate 11 bends one end portion 11a into an L shape, and this bent portion is used as a screen lifting groove. At one side portion of the interval 8 to be formed, it is fixed by welding to the hoistway side vertical frame front plate 2b.

Further, the other end portion 11b of the reinforcing plate 11 is bent toward the hoistway side to form a fin portion.
The other reinforcing plate 12 is bent at one end portion 12a in an L shape, and this bent portion is welded and fixed to the landing-side vertical frame front plate 2a at the other side portion of the interval 8 forming the screen elevating groove. . Further, the other end portion 12 b of the reinforcing plate 12 is bent toward the hoistway side and extends to a position where it overlaps with the fin portion 11 b of the other end portion of the one reinforcing plate 11.

  The fin portions 11b and 12b of both the reinforcing plates 11 and 12 are coupled and fixed by a fastening member 13 such as a rivet or a tapping screw in an overlapped state to hold the screen elevating groove 8 at a predetermined interval, and at the end of the fireproof smokeproof screen 9 The guide rail 10 which guides a part to an up-down direction is formed. 1 and 2 show the case where the fin portions 11b and 12b of the reinforcing plates 11 and 12 are bent so as to be positioned on the hoistway side, but they may be bent so as to be positioned on the landing side.

  The first embodiment is configured as described above, and the reinforcing plates 11 and 12 and the vertical frame surface plates 2b and 2a constituting the guide rail 10 are welded, so that a number of stud bolts are positioned as in the prior art. Therefore, it is not necessary to perform welding and the workability is improved, and the three-way frame can be manufactured at a low cost.

In addition, since the fins of the reinforcing plates 11 and 12 constituting the guide rail 10 are fixed with fastening members such as rivets and tapping screws, there is no variation in workability compared to conventional stud bolts, and sufficient fire resistance Can be secured.
Furthermore, since the guide rail depth W can be increased regardless of the bending mold at the time of machining, the workability is improved in this respect as well.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described with reference to the drawings. FIG. 3 is a schematic diagram showing the configuration of the same side as FIG. 1 in the three-sided frame vertical frame in Embodiment 2, with the upper side of the figure showing the hoistway side and the lower side of the figure showing the landing side. Moreover, FIG. 4 shows the structure seen from the right side of FIG. 3, and the hoistway side and the landing side are the same as FIG. Further, FIG. 5 is a schematic view showing a situation in which the three-way frame vertical frame warps inward and outward in the event of a fire.

  In these drawings, the same or corresponding parts as those in FIGS. 1 and 2 are denoted by the same reference numerals, and description thereof is omitted. A difference from FIGS. 1 and 2 is that a deformation preventing metal fitting is provided. That is, as shown in FIGS. 3 and 4, the fin portions 11 b and 12 b of the reinforcing plates 11 and 12 constituting the guide rail 10 are folded toward the hoistway side as shown in FIG. Although not shown, the fins are coupled to each other by a fastening member such as a rivet or a tapping screw so that a predetermined distance 8 is maintained. It may be fixed by welding instead of rivets or tapping screws.

  Then, one end 15a of the deformation preventing metal fitting 15 is bent in an L shape and fixed to the connecting plate 4 by a rivet 16, and the other end 15b is bent in an L shape in a direction opposite to the one end. The end 15b is positioned to the left of the fin portions 11b and 12b in FIG. 3, and is disposed so as to face the fin portion with a gap that does not contact the fin portions.

  In the event of a fire, as schematically shown in FIG. 5, a force that causes a vertical warp to bend inwardly of the width of the entrance / exit with respect to the three-way frame vertical frame 2 and the vertical frame front plates 2a and 2b are illustrated. 3, a force that generates a thermal warp in a portion of the screen raising and lowering groove 8 protruding to the left in FIG. 3 acts, and the vertical frame front plates 2 a and 2 b and the fin portion 11 b of the guide rail 10 fixed to them. , 12b tries to move to the left in FIG. 3, but at this time, the fins 11b, 12b abut against the other end 15b of the deformation preventing metal fitting 15 so that the further movement is impossible. The vertical warpage and thermal warpage of the fire are prevented, and the fireproof and smokeproof performance can be improved.

In addition, there is a method of fixing the fin portions 11b, 12b to the connecting plate 4 by welding instead of the deformation preventing metal fitting 15, but in this case, the surface of the three-sided frame vertical frame 2 is distorted, which impairs the design. .
In the second embodiment, since the deformation preventing metal fitting 15 is held through a gap that does not contact the fin portions 11b and 12b, distortion as in the case of welding does not occur, and the design of the hall is improved. In addition to this, since there is no work for removing welding distortion, workability is improved and a three-sided frame can be manufactured at low cost.

Embodiment 3 FIG.
Next, a third embodiment of the present invention will be described with reference to the drawings. FIG. 6 is a schematic diagram showing the configuration of the same side as FIG. 1 in the three-sided frame vertical frame in Embodiment 3, wherein the upper side of the figure shows the hoistway side and the lower side of the figure shows the landing side. Moreover, FIG. 7 shows the structure seen from the right side of FIG. 6, and the hoistway side and the landing side are the same as FIG.

  In these drawings, the same or corresponding parts as those in FIGS. 3 and 4 are denoted by the same reference numerals, and description thereof is omitted. The difference from FIGS. 3 and 4 is that the fins of the guide rail 10 are provided on both the hoistway side and the landing side, and a deformation preventing metal fitting is provided on each. That is, the fin portion 11b of the reinforcing plate 11 fixed to the hoistway side vertical frame surface plate 2b bends to the hoistway side similarly to FIG. 3, but the fin of the reinforcing plate 12 fixed to the landing side vertical frame surface plate 2a. As shown in FIG. 6, the portion 12b is bent to the landing side, straddling another reinforcing plate 20 between the fin portions, and the fin portions 11b, 12b and the reinforcing plate 20 are not shown with rivets and tapping screws. The predetermined interval 8 is maintained by welding or the like.

  Further, the fin portion 11b on the hoistway side is fixed similarly to FIG. 3 by the deformation preventing metal fitting 15 as in FIG. 3, and the fin portion 12b on the landing side is another deformation preventing metal fitting 21 having the same structure as the deformation preventing metal fitting 15. One end 21a is fixed to the connecting plate 4 by a rivet 22, and the other end 21b is disposed so as to face the fin portion while maintaining a gap that does not contact the fin portion 12b. This is due to the reason described in the second embodiment.

  In the third embodiment, since the deformation prevention fittings 15 and 21 are provided on both sides of the landing side and the hoistway side, it is possible to improve the fireproof and smokeproof characteristics at the time of a fire than the second embodiment.

It is the schematic which shows one structure of the three-way frame vertical frame in Embodiment 1 of this invention. It is the schematic which shows the structure seen from the right side of FIG. It is the schematic which shows one structure of the three-way frame vertical frame in Embodiment 2 of this invention. It is the schematic which shows the structure seen from the right side of FIG. It is explanatory drawing which shows the condition of the vertical curvature of a three-way frame vertical frame. It is the schematic which shows one structure of the three-way frame vertical frame in Embodiment 3 of this invention. It is the schematic which shows the structure seen from the right side of FIG. It is the schematic which shows the structure of the common hall device of an elevator. It is the schematic which shows the structure which looked at the landing apparatus of FIG. 8 from upper direction.

Explanation of symbols

1 landing door, 2 three-way frame vertical frame, 2a landing-side vertical frame surface plate, 2b hoistway side vertical frame surface plate, 3 three-way frame upper frame, 4 connecting plate, 8 screen lifting groove, 9 fire prevention smoke-proof screen, 10 guide rail 11, 12 Reinforcement plate, 11b, 12b Fin part,
15, 21 Deformation prevention metal fittings.

Claims (2)

A pair of vertical frame front plates having a substantially U-shaped cross section are arranged side by side at a predetermined interval, and a fire and smoke proof screen can be arranged to move up and down at the above interval. A three-sided frame vertical frame provided on the tie plate, a connecting plate that joins and reinforces the pair of vertical frame front plates, and one end of each of the vertical frame front plates is welded and fixed at both sides of the interval, The other end is bent toward the elevator landing or hoistway side to form a fin , and one end is fixed to the guide plate for guiding the end of the fire and smoke screen in the vertical direction and the connecting plate. The other end of the guide rail is opposed to the fin portion of the guide rail through a gap, and a deformation preventing metal fitting for preventing the vertical frame front plate from warping inward to the landing entrance width is provided. The parts are shaped to overlap each other, and both fins are fastened parts In landing device for an elevator, characterized in that so as to fix. A pair of vertical frame front plates having a substantially U-shaped cross section are arranged side by side at a predetermined interval, and a fire and smoke proof screen can be arranged to move up and down at the above interval. A three-sided frame vertical frame, a connecting plate that joins and reinforces the two vertical frame front plates, and one end of the gap is welded and fixed to one vertical frame front plate, and the other end Is bent to the landing side of the elevator to form a fin portion, and one end is welded and fixed to the other vertical frame front plate at the other side of the gap, and the other end is lifted and lowered by the elevator Another guide rail portion that is bent on the road side to form a fin portion, and provided between the fin portions of the both guide rail portions, and is fixed to each fin portion by a fastening member, so that the fire prevention smoke prevention A reinforcing plate that forms a guide rail that guides the edge of the screen in the vertical direction; A pair of deformation preventions that have one end fixed to the connecting plate and the other end opposed to each fin portion of the guide rail via a gap to prevent the vertical frame front plate from warping inwardly at the entrance / exit width. An elevator hall device characterized by comprising a bracket .

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