JP7391237B2 - Construction method and equipment for elevator guide rails - Google Patents

Description

The present invention relates to a method for constructing a guide rail for an elevator and a device for constructing the same, and in particular, the present invention relates to a method for constructing a guide rail for an elevator and a device for constructing the same. The present invention relates to a construction method and a construction device for an elevator guide rail suitable for fixing.

Work during guide rail installation work when fixing the guide rail, which guides the lifting and lowering of elevator cars and counterweights, etc., to a predetermined position in the hoistway using a guide rail fixing device using drilled screws via a bracket. Patent Documents 1 and 2 describe fixing devices for elevator guide rails that can reduce the burden on people and are resistant to horizontal loads caused by earthquakes.

Patent Document 1 mentioned above includes a wall side rail bracket fixed to a wall surface in an elevator hoistway, and a rail side rail bracket superimposed on the wall side rail bracket and fixed to a guide rail, A first elongated hole formed in the wall-side rail bracket for fixing the rail-side rail bracket to the wall-side rail bracket, and a first elongated hole formed in the wall-side rail bracket for fixing the rail-side rail bracket to the wall-side rail bracket, and a first elongated hole formed on the rail side at a portion where the wall-side rail bracket and the rail-side rail bracket overlap. A second elongated hole is formed in the rail bracket, a bolt is inserted into the first elongated hole and the second elongated hole, and the bolt is screwed to connect the wall side rail bracket and the rail side rail bracket. A first fastening section consisting of a clamping nut, and a pair of drill screws serving as a second fastening section for fixing the rail-side rail bracket to the wall-side rail bracket more firmly than the first fastening section. Each of the drill screws is a fixing device for an elevator guide rail provided outside the first fastening portion in the width direction of the guide rail.

On the other hand, the above-mentioned Patent Document 2 discloses a wall-side rail bracket that is fixed to a wall surface of an elevator hoistway and has a first elongated hole formed therein, and a second elongated hole formed in an overlapping part that overlaps the wall-side rail bracket. a rail-side rail bracket for fixing a car guide rail for guiding the car and a counterweight guide rail for guiding the counterweight; the first long hole and the second long hole; a bolt that is movably inserted through the hole; and a nut that is screwed onto the bolt and holds the bolt between the wall rail bracket and the rail side rail bracket, and the wall rail bracket and the rail side The rail-side rail bracket is provided at a portion where the rail bracket overlaps with the wall-side rail at an arbitrary position within a range that allows relative movement between the bolt and the first elongated hole and the second elongated hole. Even if the first fastening part held on the bracket and the rail-side rail bracket are moved to any movable position of the first fastening part with respect to the wall-side rail bracket, the first fastening part held in the bracket will not fit into the first elongated hole. a drill screw that is a second fastening part that fixes the rail-side rail bracket to the wall-side rail bracket with a stronger force than the first fastening part at a position where there is no interference; Fixation devices are described.

JP 2019-18928 Publication JP 2019-142618 Publication

In the techniques described in Patent Documents 1 and 2 mentioned above, workability is improved by applying drill screws, but this is preconditioned that the drill screws are installed straight.

However, to prevent repetitive loads from being applied to drill screws, a gap is usually provided between the drill screw and the bracket. If the drill screw is installed in the wrong condition, or if the drill screw is driven diagonally, there will be no gap between the drill screw and the bracket, and the drill screw will interfere with the bracket, which may eventually lead to damage to the drill screw itself. There is.

The present invention has been made in view of the above-mentioned points, and an object thereof is to prevent the drill screws from being biased even when the wall side rail bracket and the rail side rail bracket are fixed using drill screws. To provide a method for constructing a guide rail for an elevator and a device for constructing the same, which eliminates the possibility of the drill screw interfering with the bracket and prevents the drill screw itself from being damaged.

In order to achieve the above object, the method for constructing a guide rail for an elevator according to the present invention includes fixing the guide rail to a wall-side rail bracket fixed to a wall in the hoistway of the elevator via a rail-side rail bracket. A method for constructing an elevator guide rail in which a wall-side rail bracket and the rail-side rail bracket are fastened together with a drill screw, wherein a hole larger than the flange portion of the drill screw is provided between the drill screw and the rail-side rail bracket in the horizontal direction. The present invention is characterized in that a diameter guide and a washer or a spacer are installed, and the guide is removed after the installation of the drill screw is completed to form a gap between the rail side rail bracket and the drill screw in the horizontal direction.

Further, in order to achieve the above object, the elevator guide rail construction device of the present invention fixes the guide rail to the wall rail bracket fixed to the wall in the elevator hoistway via the rail side rail bracket. a drill screw disposed horizontally between the drill screw and the rail-side rail bracket, the diameter of which is larger than the flange portion of the drill screw, and which is removed after completion of construction of the drill screw; The guide includes a guide that forms a gap between the drill screws in the horizontal direction, and a washer or spacer that is arranged between the drill screw and the rail side rail bracket in the horizontal direction and has a diameter larger than the flange portion of the drill screw. It is characterized by

According to the present invention, even when a wall side rail bracket and a rail side rail bracket are fixed using drill screws, the drill screws can be driven without being biased, and there is no fear that the drill screws will interfere with the bracket. The drill screw itself cannot be damaged.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the schematic structure of the elevator apparatus which employ|adopts Example 1 of the construction method of the guide rail for elevators of this invention. FIG. 2 is a horizontal cross-section of the building in FIG. 1 at a position including the car entrance and exit, and the car is viewed from above. It is a top view which shows the fixed state of the counterweight side guide rail in FIG. It is a partial perspective view which shows the state where the rail side rail bracket to which the counterweight side guide rail is fixed, and the wall side rail bracket are fixed with a drill screw. It is a partial perspective view which shows the state of FIG. 4 seen from the counterweight side guide rail side. It is a partial perspective view which shows the state which inserts a drill screw into the hole of a washer or a spacer in the construction method of the guide rail for elevators of this invention. FIG. 7 is an exploded perspective view showing a portion A in FIG. 6 enlarged and showing a state in which a guide and a washer or a spacer are installed in a prepared hole formed in a rail-side rail bracket. It is a partial perspective view which shows the fastened state after construction performed by the construction method of the guide rail for elevators of this invention. 9 is a partial perspective view seen from the direction of arrow B in FIG. 8. FIG. FIG. 10 is a partial perspective view showing a section of the C-plane portion of FIG. 9; 9 is a partial perspective view showing a state in which the guide is removed from the state shown in FIG. 8. FIG. FIG. 12 is an enlarged plan view of section D in FIG. 11; It is a figure for explaining the construction process of the construction method of the guide rail for elevators of this invention.

EMBODIMENT OF THE INVENTION Hereinafter, the construction method of the guide rail for elevators of this invention and its construction apparatus are demonstrated based on the Example shown in the figure. In each figure, the same reference numerals are used for the same components.

FIG. 1 shows a schematic configuration of an elevator apparatus 100 in which a first embodiment of the method for constructing an elevator guide rail of the present invention is adopted.

As shown in FIG. 1, the elevator device 100 includes a hoistway 1 that communicates each floor of a building 2, a plurality of landings 2A provided on each floor of the building 2, and a hoistway 1 that moves within the hoistway 1 to each landing. Each platform 2A is connected to the car 4 through a car entrance 4A.

The car 4 is connected to one end of a main rope (not shown) and suspended in the hoistway 1, and the other end of the main rope is connected to a counterweight 5 that balances the weight of the car 4. ing. Further, above the hoistway 1, a hoisting machine 3 for hoisting the main rope and a control panel (not shown) for controlling the operation of the hoisting machine 3 are installed.

When the hoisting machine 3 winds up or unwinds the main rope, the car 4 and the counterweight 5 are suspended along the car side guide rails 6 and 7 fixed to the hoistway 1 and the counterweight side guide rails 8 and 9. Move to.

The counterweight side guide rail 9 is fixed to the wall surface 1A of the hoistway 1 via a first rail bracket 10 with fastening means 16a consisting of bolts and nuts, and the counterweight side guide rail 8 and the car side guide rail 7 are The car side guide rail 6 is fixed to the wall surface 1A of the hoistway 1 via the second rail bracket 11 with fastening means 16b (see FIG. 2), and the car side guide rail 6 is fixed to the wall surface 1A of the hoistway 1 via the third rail bracket 12. It is fixed to by fastening means 16c (see FIG. 2).

FIG. 2 shows details of how the car side guide rails 6 and 7 and the counterweight side guide rails 8 and 9 are fixed to the wall surface 1A of the hoistway 1. FIG. 2 is a horizontal section of the building 2 at a position including the car entrance/exit 4A, and is a view of the car 4 seen from above.

As shown in FIG. 2, the first rail bracket 10 consists of a first wall side rail bracket 10A and a first rail side rail bracket 10B, and the counterweight side guide rail 9 is connected to the first wall side rail bracket 10B. This first rail side rail bracket 10B is fixed to the wall surface 1Ad of the hoistway 1 by a fastening means 16a via the first wall side rail bracket 10A.

The second rail bracket 11 is composed of a second wall side rail bracket 11A and a second rail side rail bracket 11B, and the counterweight side guide rail 8 and the car side guide rail 7 are connected to the second rail side rail bracket 11A and the second rail side rail bracket 11B. 11B, and this second rail side rail bracket 11B is fixed to the wall surface 1Ab of the hoistway 1 by fastening means 16b via the second wall side rail bracket 11A.

Further, the third rail bracket 12 includes a third wall side rail bracket 12A and a third rail side rail bracket 12B, and holds the car side guide rail 6 with the third rail side rail bracket 12B. The third rail-side rail bracket 12B is fixed to the wall surface 1Ac of the hoistway 1 by a fastening means 16c via the third wall-side rail bracket 12A.

In addition, the counterweight side guide rail 9 is constructed by inserting rail clip bolts 17a and 17b into the first rail side rail bracket 10B, as shown in FIG. The nuts 18a and 18b are fixed by rail clips 19a and 19b which are tightened from opposite directions.

Anchor bolt fixing holes (not shown) are formed in the first wall side rail bracket 10A, and anchor bolts 10H1 and 10H2 selectively passed through the anchor bolt fixing holes are attached to the first wall side rail bracket 10A. A rail bracket 10A is fixed to a wall surface 1A of the hoistway 1 (see FIG. 3).

The method and apparatus for constructing the elevator guide rail according to this embodiment, which are employed in the elevator system 100 configured as described above, will be described below.

In this embodiment, the guide rails will be explained with reference to the counterweight side guide rail 9 as a representative of the four guide rails, and the counterweight side guide rail 8 and the car side guide rails 6 and 7 will be explained. is omitted.

Normally, the counterweight side guide rail 9 is fixed to the wall surface 1A of the hoistway 1 via the first rail bracket 10 by the fastening means 16a, as described above. The first wall-side rail bracket 10A and the first rail-side rail bracket 10B are fastened with drill screws 19A and 19B, which will be described later, and friction fixing bolts 15A and 15B.

As shown in FIGS. 4 and 5, the first wall-side rail bracket 10A and the first rail-side rail bracket 10B of this embodiment are formed with an L-shaped cross section, and the first wall with the L-shaped cross section The short side portion 10A' of the side rail bracket 10A is fixed to the wall surface 1A in the hoistway 1 by passing bolts through holes 10A5, 10A6, and 10A7 formed therein. The counterweight side guide rail 9 is fixed to the short side 10B' of the rail side rail bracket 10B, and the long side 10A'' of the first wall side rail bracket 10A and the long side of the first rail side rail bracket 10B are fixed. 10B" are fastened to drill screws 19A and 19B and friction fixing bolts 15A and 15B.

That is, in this embodiment, when the car 4 normally travels, the first wall side rail bracket 10A and the first rail side rail bracket 10B are fastened together by the friction force of the friction fixing bolts 15A and 15B. If the friction fixing bolts 15A and 15B slip during an abnormal situation, the load will be received by the drill screws 19A and 19B.

In addition, a pair of through holes are formed at a predetermined interval in the long side portion 10A'' of the first wall side rail bracket 10A and the long side portion 10B'' of the first rail side rail bracket 10B in this embodiment, The first wall-side rail bracket 10A and the first rail-side rail bracket 10B are fastened together by inserting the drill screws 19A and 19B into the respective through holes via washers.

Furthermore, in this embodiment, as shown in FIGS. 4 and 5, each of the long side portion 10A'' of the first wall side rail bracket 10A and the long side portion 10B'' of the first rail side rail bracket 10B has a , a plurality of oval holes (four oval holes 10A1, 10A2, 10A3, 10A4 (olong holes 10A3 and 10A4) are provided on the long side 10A'' of the first wall side rail bracket 10A) between the above-mentioned through holes. (not shown in FIGS. 4 and 5), two oblong holes 10B1 and 10B2) are formed in the long side 10B'' of the first rail side rail bracket 10B, and in this embodiment, Oval holes 10A3 and 10A4 formed in the long side 10A'' of the first wall side rail bracket 10A and oval holes 10B1 and 10B2 formed in the long side 10B'' of the first rail side rail bracket 10B. , insert the friction fixing bolts 15A and 15B through the washers 17A and 17B, fasten the first wall side rail bracket 10A and the first rail side rail bracket 10B, and insert the friction fixing bolts 15A and 15B into the oblong holes. By moving within 10B1 and 10B2, the fastening position of the first wall side rail bracket 10A and the first rail side rail bracket 10B is adjusted.

By the way, as mentioned above, the drill screws 19A and 19B are usually provided with a gap between them in the horizontal direction and the first rail side rail bracket 10B so that repeated loads are not applied to the drill screws 19A and 19B. If the drill screws 19A and 19B are installed normally without special efforts, the drill screws 19A and 19B may be installed unevenly, or the drill screws 19A and 19B may be driven diagonally. There is a possibility that the horizontal gap between 19B and the first rail side rail bracket 10B disappears, and the drill screws 19A and 19B interfere with the first rail side rail bracket 10B, and eventually the drill screws 19A and 19B themselves may lead to damage.

Therefore, in this embodiment, as shown in FIGS. 6 to 13, the counterweight side guide rail 9 is fixed to the first wall side rail bracket 10A via the first rail side rail bracket 10B, and the counterweight side guide rail 9 is fixed to the first wall side rail bracket 10A via the first rail side rail bracket 10B. When fastening the wall side rail bracket 10A and the first rail side rail bracket 10B with the drill screws 19A and 19B, the drill screw 19A is inserted between the drill screws 19A and 19B and the first rail side rail bracket 10B in the horizontal direction. Install guides 20A and 20B and washers or spacers 21A and 21B, each having a diameter larger than that of the flange portions 19A1 and 19B1 (see FIG. 10) of the first and second flange portions 19A and 19B. A gap G (see FIG. 13(d)) is formed between the rail side rail bracket 10B and the drill screws 19A and 19B in the horizontal direction.

Hereinafter, the construction method of the above-mentioned elevator guide rail will be explained in detail.

In this embodiment, when carrying out the method for constructing an elevator guide rail, drill screws 19A are used to fix the counterweight guide rail 9 to the first wall rail bracket 10A via the first rail bracket 10B. 19B, the drill screw is arranged horizontally between the drill screws 19A and 19B and the first rail side rail bracket 10B, and has a larger diameter than the flange portions 19A1 and 19B1 (see FIG. 10) of the drill screws 19A and 19B. Guides 20A and 20B are removed after the construction of 19A and 19B is completed, and form a gap G between the first rail bracket 10B and the drill screws 19A and 19B in the horizontal direction, and the drill screws 19A and 19B and the first rail side. Washers or spacers 21A and 21B are disposed between the rail brackets 10B in the horizontal direction and have larger diameters than the flange portions 19A1 and 19B1 of the drill screws 19A and 19B, and the guides 20A and 20B have collar portions 20A1 and 20B1 on their upper portions. In addition to being formed in a cylindrical shape, the washers or spacers 21A and 21B are formed in a donut shape, and the donut-shaped washers or spacers 21A and 21B are installed in the cylindrical portions of the flanges 20A1 and 20B1 of the guides 20A and 20B. Uses construction equipment for elevator guide rails.

Using the above-mentioned elevator guide rail construction device, insert a hole between the drill screws 19A and 19B and the first rail side rail bracket 10B in the horizontal direction that is larger than the flange portions 19A1 and 19B1 (see FIG. 10) of the drill screws 19A and 19B. Install the diameter guides 20A and 20B and washers or spacers 21A and 21B (see FIG. 13(a)), and remove the guides 20A and 20B after completing the installation of the drill screws 19A and 19B (see FIG. 13(d)). , a gap G (see FIG. 13(d)) is formed between the first rail bracket 10B and the drill screws 19A and 19B in the horizontal direction.

At that time, as shown in FIG. 7, a pilot hole 10B3 is formed at a predetermined position of the first rail side rail bracket 10B, and a cylindrical hole having flanges 20A1 and 20B1 at the upper part is inserted into the pilot hole 10B3. Insert the guides 20A and 20B, install donut-shaped washers or spacers 21A and 21B in the cylindrical parts of the flanges 20A1 and 20B1 of the guides 20A and 20B, and then insert the drill screws 19A and 19B into the donut-shaped washers. Alternatively, insert it into the center hole of the spacers 21A and 21B (see FIG. 13(a)).

After inserting the drill screws 19A and 19B into the center holes of the donut-shaped washers or spacers 21A and 21B, drill holes in the first wall rail bracket 10A with the drill screws 19A and 19B, and insert the drill screws into the holes. 19A and 19B are inserted to fasten the first wall side rail bracket 10A and the first rail side rail bracket 10B (see (b) and (c) of FIG. 13). After fastening the first wall side rail bracket 10A and the first rail side rail bracket 10B with the drill screws 19A and 19B, the guides 20A and 20B are pulled out using a predetermined means (such as a tool), and the first rail side rail is removed. A gap G (see FIG. 13(d)) is formed between the bracket 10B and the drill screws 19A and 19B in the horizontal direction.

According to this embodiment, a gap G can be definitely created between the drill screws 19A and 19B and the first rail side rail bracket 10B, and furthermore, the gap G can be created between the drill screws 19A and 19B and the first rail side rail bracket 10B. Since the structure is such that the drill screws 19A and 19B can be driven straight, even if the drill screws 19A and 19B are driven unevenly, a gap G can be created by removing the guides 20A and 20B. Long-term loads such as during normal running of the elevator device 100 no longer act on the drill screws 19A and 19B, and there is no possibility that the drill screws 19A and 19B themselves will be damaged.

Note that the present invention is not limited to the embodiments described above, and includes various modifications.
For example, the embodiments described above are described in detail to explain the present invention in an easy-to-understand manner, and the present invention is not necessarily limited to having all the configurations described. Furthermore, it is possible to replace a part of the configuration of one embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of one embodiment. Furthermore, it is possible to add, delete, or replace a part of the configuration of each embodiment with other configurations.

1... Hoistway, 1A, 1Ab, 1Ac, 1Ad... Wall of hoistway, 2... Building, 2A... Landing area, 3... Hoisting machine, 4... Car, 4A... Car entrance/exit, 5... Counterweight, 6, 7 ... Car side guide rail, 8, 9... Counterweight side guide rail, 10... First rail bracket, 10A... First wall side rail bracket, 10A1, 10A2, 10A3, 10A4... First wall side rail bracket. Oval holes formed on the long sides, 10A5, 10A6, 10A7... Holes formed on the short sides of the first wall rail bracket, 10A'... Short sides of the first wall rail bracket, 10A "...Long side of first wall side rail bracket, 10B...First rail side rail bracket, 10B1, 10B2...Oval hole formed on long side of first rail side rail bracket, 10B3...First Prepared hole formed in the rail side rail bracket of 10B'...Short side part of the first rail side rail bracket, 10B''...Long side part of the first rail side rail bracket, 10H1, 10H2...Anchor bolt, 11 ...Second rail bracket, 11A...Second wall side rail bracket, 11B...Second rail side rail bracket, 12...Third rail bracket, 12A...Third wall side rail bracket, 12B...Third rail bracket Rail side rail bracket, 15A, 15B... Friction fixing bolt, 16a, 16b, 16c... Fastening means, 17A, 17B... Washer, 17a, 17b... Bolt for rail clip, 18a, 18b... Nut of bolt for rail clip, 19A, 19B...Drill screw, 19A1, 19B1...Flange portion of drill screw, 19a, 19b...Rail clip, 20A, 20B...Guide, 20A1, 20B1... Flange portion of guide, 21A, 21B...Washer or spacer, 100...Elevator device.

Claims (6)

A guide rail for an elevator in which a guide rail is fixed to a wall side rail bracket fixed to a wall in an elevator hoistway via a rail side rail bracket, and the wall side rail bracket and the rail side rail bracket are fastened with drill screws. A construction method,
A guide and a washer or spacer having a diameter larger than the flange portion of the drill screw is installed horizontally between the drill screw and the rail side rail bracket, and after the installation of the drill screw is completed, the guide is removed and the rail side rail bracket is removed. A method of constructing a guide rail for an elevator, characterized by forming a gap between the bracket and the drill screw in the horizontal direction. A method for constructing an elevator guide rail according to claim 1, comprising:
A pilot hole is formed in a predetermined position of the rail side rail bracket, the cylindrical guide having a flange at the top is inserted into the pilot hole, and the donut-shaped guide is inserted into the cylindrical portion of the flange of the guide. A method for constructing a guide rail for an elevator, comprising installing a washer or a spacer, and then inserting the drill screw into a hole in the center of the donut-shaped washer or spacer. A method for constructing an elevator guide rail according to claim 2, comprising:
After inserting the drill screw into the center hole of the donut-shaped washer or spacer, drill a hole in the wall rail bracket with the drill screw, insert the drill screw into the hole, and insert the drill screw into the wall rail bracket. A method for constructing a guide rail for an elevator, comprising: fastening a bracket to the rail side rail bracket. A method for constructing an elevator guide rail according to claim 3, comprising:
A method of constructing a guide rail for an elevator, characterized in that after the wall-side rail bracket and the rail-side rail bracket are fastened together with the drill screw, the guide is removed by a predetermined means. a drill screw for fixing the guide rail to a wall rail bracket fixed to a wall in the hoistway of the elevator via the rail side rail bracket; and a drill screw disposed horizontally between the drill screw and the rail side rail bracket, and the a guide that has a diameter larger than a flange portion of the drill screw, is removed after completion of construction of the drill screw, and forms a gap between the rail side rail bracket and the drill screw in the horizontal direction; 1. A construction device for an elevator guide rail, comprising: a washer or a spacer arranged horizontally between the brackets and having a diameter larger than the flange portion of the drill screw. The elevator guide rail construction device according to claim 5,
The guide is formed in a cylindrical shape with a flange on the upper part, and the washer or spacer is formed in a donut shape, and the donut-shaped washer or spacer is installed in a cylindrical portion of the flange of the guide. A construction device for elevator guide rails, which is characterized by:

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