JP4732039B2 - Elevator door equipment - Google Patents

Description

  The present invention relates to an elevator door device that opens and closes an entrance / exit between an elevator car and a landing.

  In the conventional apparatus, in order to prevent smoke generated on the landing floor from flowing into the hoistway, a smoke shielding material is attached to the lower portion of the landing door body over the entire width direction of the landing door body. The smoke shielding material is slid on the upper surface of the landing sill with the opening / closing operation of the landing door body (see, for example, Patent Document 1).

Japanese Utility Model Publication No.59-188285

  In the conventional elevator door apparatus as described above, the length of the landing sill in the entrance direction of the landing doorway is set to such a length that the door leg does not come off the sill groove when the landing door body is fully opened. Therefore, the lower part of the smoke shielding material attached to the end of the landing door body on the door side is dropped from the landing sill when the landing door body is fully opened, and the opening / closing operation of the landing door body It is worn out by the edge of the landing threshold and deteriorates early. In addition, since the landing sill is fixed to the building wall, a great deal of labor is required to replace the landing sill.

  This invention is made in order to solve the above subjects, and the objective is to provide the elevator door apparatus which can reduce more easily the possibility that smoke shielding material will deteriorate early. It is.

  The elevator door device according to the present invention includes a door main body that opens and closes an entrance to and from a car and a landing, a sill disposed at a lower part of the entrance, a lower part of the door main body, and an upper surface of the sill according to an opening / closing operation of the door main body Smoke shielding material that slides on the sill, and a sill extension guide that is attached to the sill so that the upper surface of the sill extends in the door opening direction, and supports the lower part of the smoke shielding material when the landing door body is fully opened Is provided.

  According to the elevator door device of the present invention, the sill extension guide is attached to the sill so that the upper surface of the sill extends in the door opening direction of the door body, and when the door body is fully opened, the lower part of the smoke shielding material is removed. Because it supports, it is possible to reduce the possibility that the smoke shielding material will fall off the upper surface of the sill without changing the sill, and to more easily reduce the possibility that the smoke shielding material will deteriorate early. it can.

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 a state when a landing door device before repair according to Embodiment 1 of the present invention is viewed from a hoistway side to a landing side. 2 is a cross-sectional view taken along line II-II in FIG. In the figure, a pair of landing door bodies 1 for opening and closing the landing doorway are arranged at the landing doorway of the elevator. A door hanger 4 to which a plurality of rollers 3 are attached is fixed to the upper end portion of the landing door body 1. A hanger case 8 and a guide rail 9 are fixed to the building wall 6 above the landing entrance. The landing door body 1 is suspended from the guide rail 9 by a door hanger 4 and a roller 3. The landing door body 1 is configured to be opened and closed horizontally along the guide rail 9.

  Three-way frames 10 are fixed to both sides and the upper part of the landing entrance. A landing sill 11 is fixed to the building wall 6 at the landing entrance floor. The landing sill 11 is provided with a sill groove 11a extending in parallel to the entrance direction of the landing entrance.

  Here, the landing door body 1 is formed in a cylindrical shape by bending a steel plate. The landing door body 1 has a landing side wall 1a and a hoistway side wall 1b. At the lower part of the landing side wall 1a, a plurality of door legs 13 inserted into the sill groove 11a and a plurality of smoke shields 14 in contact with the upper surface of the landing sill 11 are fixed by fixing members 16 such as bolts and pins. It is attached.

  The door leg 13 and the smoke shielding material 14 are disposed adjacent to each other. A gap between the lower part of the landing side wall 1a and the upper surface of the landing sill 11 is blocked by the door leg 13 and the smoke shielding material 14. The smoke shielding material 14 is slid on the upper surface of the landing sill 11 as the landing door body 1 opens and closes. In addition, the smoke shielding material 14 is comprised with the flame-retardant elastic body.

  Next, FIG. 3 is an enlarged front view showing the vicinity of the door side end portion of the landing door main body 1 when the landing door main body 1 of FIG. 1 is fully opened. FIG. 4 is a side view showing the vicinity of the end portion of the door side of the landing door body 1 of FIG. In the figure, when the landing door main body 1 is fully opened, the door side (door opening direction side) end of the landing door main body 1 protrudes in the door opening direction from the door side end of the landing sill 11. Yes. The smoke shielding material 14 has a door pocket side smoke shielding material 14 a disposed on the door pocket side of the landing door body 1. A part of the lower portion of the door bag side smoke shielding material 14 a is dropped from the landing threshold 11.

  This is because the length of the landing sill 11 in the entrance direction of the landing doorway is designed such that the door leg 13 does not come off the sill groove 11a when the landing door body 1 is fully opened. It is. In this state, that is, the state before the renovation, when the landing door main body 1 is fully opened, a part of the lower portion of the doorside smoke shielding material 14a is removed from the landing sill 11, so the doorside smoke insulating material. The lower part of 14a is worn by the door side end of the landing sill 11 with the opening / closing operation of the landing door main body 1, and deteriorates early.

  Next, FIG. 5 is a front view showing the elevator door device of FIG. 1 after refurbishment, and shows a state when the landing door body 1 is in a fully opened state. FIG. 6 is a front view showing the vicinity of the end portion of the door side of the landing door body 1 of FIG. FIG. 7 is a side view showing the vicinity of the door pocket side end portion of the landing door main body 1 of FIG. 6. In the figure, a sill extension guide 17 having an L-shaped cross section is attached to an end of the landing sill 11 on the door pocket side. The sill extension guide 17 is provided with an extension part 17 a that extends the upper surface of the landing sill 11 in the door opening direction of the landing door body 1 and a fixed part 17 b that is fixed to the end of the landing sill 11 on the hoistway side.

  The extension portion 17a is a portion refracted at a right angle from the fixed portion 17b. The upper surface of the extension portion 17 a is adjacent to the upper surface of the landing threshold 11. Further, the upper surface of the extension portion 17a is disposed on the same plane as the upper surface of the landing threshold 11. The lower part of the door bag side smoke shielding material 14a is supported by the landing sill 11 and the extension 17a when the landing door body 1 is fully opened.

  Here, the upper surface of the landing sill 11 does not intersect perpendicularly with the end surface of the landing sill 11 hoistway. A liner 20 as a height adjustment member is sandwiched between the fixed portion 17b and the end of the hoistway side of the landing sill 11 so as not to cause a step between the upper surface of the extension 17a and the upper surface of the landing sill 11. ing. The liner 20 is provided with a landing sill side end face 20a and a fixed part side end face 20b extending perpendicularly to the top surface of the landing sill 11 when the landing sill side end face 20a is applied to the hoistway side end face of the landing sill 11. It has been. That is, the landing sill side end face 20a extends non-parallel to the fixed part side end face 20b.

  In such an elevator door device, the sill extension guide 17 is attached to the landing sill 11 so as to extend the upper surface of the landing sill 11 in the door opening direction of the landing door main body 1, and when the landing door main body 1 is fully opened. Since the lower part of the door bag side smoke shielding material 14a is supported, the possibility that the door bag side smoke shielding material 14a is dropped from the upper surface of the hall threshold sill 11 can be reduced without replacing the hall threshold 11. That is, compared with the case where the boarding sill 11 is replaced, the possibility that the smoke shielding material 14 is deteriorated at an early stage can be reduced more easily, and the cost of repair can be kept low.

  Further, in such an elevator door device, since the liner 20 is sandwiched between the fixed portion 17b and the hoistway side end of the landing sill 11, the hoistway side end surface is not perpendicular to the upper surface. Even when the sill extension guide 17 is attached, the step between the extension 17a and the upper surface of the landing sill 11 can be further reduced. That is, since the load applied to the extension portion 17a can be further reduced by sliding the door bag side smoke shielding material 14a, it is not necessary to fix the sill extension guide 17 to the building wall at the lower part of the entrance / exit, and the sill extension guide Compared with the case where 17 is fixed to a building wall, the construction time for repair can be shortened.

Embodiment 2. FIG.
FIG. 8 is a front view showing a main part of an elevator door device according to Embodiment 2 of the present invention. FIG. 9 is a side view showing a main part of the elevator door device of FIG. In the first embodiment, the sill extension guide 17 has an L-shaped cross section, but the sill extension guide 22 of the second embodiment has a Z-shaped cross section (a crank shape). The sill extension guide 22 is provided with an extension 22 a that extends the upper surface of the landing sill 25 in the door opening direction of the landing door main body 1 and a fixed part 22 b that is fixed to the hoistway side end of the landing sill 25. The lower part of the door bag side smoke shielding material 14a is supported by the landing sill 25 and the extension 22a when the landing door body 1 is fully opened.

  In the lower part of the landing threshold 25, a dovetail groove 25a having an opening narrower than the inside of the groove is provided. A bolt head 27a of a bolt 27, which is a fixing member, is fitted into the dovetail groove 25a. A nut 28 is screwed into the bolt 27 after passing through the fixing portion 22b. The fixed portion 22b is fastened to the doorside end portion of the landing threshold 25 by bolts 27 and nuts 28. Other configurations are the same as those in the first embodiment.

  In such an elevator door device, the sill extension guide 22 is fastened to the landing sill 25 by bolts 27 and nuts 28 fitted in the existing dovetail groove 25 a, so that the sill extension guide 22 is fixed to the landing sill 25. Therefore, it is possible to eliminate the necessity of providing a bolt hole or the like, and it is possible to more easily reduce the possibility that the doorside smoke shielding material 14a is deteriorated at an early stage, and it is possible to keep repair costs low.

Embodiment 3 FIG.
FIG. 10 is a front view showing a main part of an elevator door device according to Embodiment 3 of the present invention. FIG. 11 is a side view showing a main part of the elevator door device of FIG. In the figure, the sill extension guide 29 of the third embodiment has a substantially U-shaped cross section, and is refracted so that both end portions thereof protrude outward. The sill extension guide 29 is provided with an extension part 29a for extending the top surface of the landing sill 11 in the door opening direction of the landing door body 1 and a fixing part 29b fitted into the sill groove 11a and fixed to the bottom of the sill groove 11a. ing. Other configurations are the same as those in the first embodiment.

  In such an elevator door device, the sill extension guide 29 can be fitted into the sill groove 11a and can be fixed to the bottom of the sill groove 11a. Therefore, the sill extension guides 17 and 22 of the first and second embodiments are used as the landing sill. Compared with the case where it attaches to 11 and 25, the sill extension guide 29 can be attached to the boarding sill 11 more easily, and the possibility that the door-seat side smoke shielding material 14a will deteriorate early can be reduced more easily.

  Although the center open type elevator door device has been described in the first to third embodiments, the door opening method of the elevator door device to which the present invention is applied is not limited to the center open method, for example, two on one side An opening method, a one-sided three-sheet opening method, or the like may be used.

  In the first to third embodiments, the smoke shielding material 14 is described as being attached to the landing door body 1. However, the smoke shielding material may be attached to the car door body, and the smoke shielding material is attached to the car door body. If attached, the extended sill guide may be attached to the car sill.

It is a front view which shows a state when the elevator door apparatus before repair by Embodiment 1 of this invention is seen from the hoistway side to the landing side. It is sectional drawing which follows the II-II line | wire of FIG. It is a front view which expands and shows the door bag side edge part periphery of the landing door main body when the landing door main body of FIG. 1 is made into the full open state. FIG. 4 is a side view showing the vicinity of an end portion on the door pocket side of the landing door body of FIG. 3. It is a front view which shows the elevator door apparatus of FIG. 1 after refurbishment. It is a front view which shows the door bag side edge part periphery of the landing door main body of FIG. It is a side view which shows the door bag side edge part periphery of the landing door main body of FIG. It is a front view which shows the principal part of the elevator door apparatus by Embodiment 2 of this invention. It is a side view which shows the principal part of the elevator door apparatus of FIG. It is a front view which shows the principal part of the elevator door apparatus by Embodiment 3 of this invention. It is a side view which shows the principal part of the elevator door apparatus of FIG.

Explanation of symbols

  1 landing door body, 11, 25 landing sill, 11a sill groove, 14 smoke barrier, 14a door side smoke barrier, 17, 22, 29 extension sill guide, 17a, 22a, 29a extension, 17b, 22b, 29b fixed Part, 20 liner (height adjusting member), 25a groove, 27 bolt (fixing member).

Claims (4)

A door body that opens and closes the doorway between the car and the landing,
A threshold located at the bottom of the doorway,
A smoke barrier provided at the lower part of the door body and sliding on the upper surface of the sill with the opening and closing operation of the door body, and the sill upper surface is attached to the sill so as to extend in the door opening direction of the door body An elevator door device comprising: a sill extension guide that supports a lower portion of the smoke shielding material when the landing door body is fully opened.   The height adjustment member for arrange | positioning the said sill extension guide upper surface at the same height as the said sill upper surface is pinched | interposed between the said sill and the said sill extension guide. Elevator door equipment. The sill is provided with a dovetail with a narrowed opening compared to the inside of the groove,
The elevator door apparatus according to claim 1 or 2, wherein the sill extension guide is fixed to the sill by a fixing member fitted in the dovetail groove. The sill is provided with a sill groove that guides the lower part of the door body,
The sill extension guide is provided with an extension part that extends the sill upper surface in the door opening direction of the door body, and a fixing part that is fitted in the sill groove and fixed to the bottom part of the sill groove. The elevator door device according to claim 1 or 2, characterized in that

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