JP2007186274A - Method for installing elevator hoistway top part equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for installing elevator hoistway top part equipment, which improves installation performance and safety. <P>SOLUTION: In this method for installing the elevator hoistway top part equipment, there are provided a pair of rod members 3 which are respectively hung downward from top parts of guide rails 1, 1A erected inside the hoistway and guiding lifting/lowering of a car or a balancing weight, and comprise a pair of long rods 4 and short rods 5, and a beam member 7 on which the elevator hoistway top part equipment is provided is supported by the pair of rod members 3. After hung up by a first crane and supported by the long rods 4 of each of the pair of rod members 3, the beam member 7 is further hung up by second cranes 10, 10A and supported by the short rods 5 of each of the pair of rod members 3 while guided by the long rods 4. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an elevator hoistway top device installation method.

In recent years, buildings such as apartment buildings have been installed with a large number of elevators (hereinafter referred to as machine room-less elevators) that do not have a machine room. In this machine room-less elevator, a beam member is supported on an upper portion of a guide rail that is installed in a hoistway and guides the raising or lowering of a car or a counterweight, and a hoisting machine, a pulley, etc. The hoistway top equipment was provided. In addition, when the beam member is supported on the upper portion of the guide rail, a pair of rod members suspended downward from the top portions of the pair of guide rails are provided, and the hoistway top device is provided by the pair of rod members. There has been known an elevator hoistway top device installation method in which a hoistway top device is installed on a hoistway top by supporting a beam member (see, for example, Patent Document 1).
JP 2001-171954 A (paragraph number 0018 to paragraph number 0024, FIGS. 1 to 3)

  However, in the conventional elevator hoistway top device installation method described in Japanese Patent Laid-Open No. 2001-171954 described above, the beam member can be fixed to the rod member suspended downward from the top of the guide rail. If the beam member is not lifted up to the height position, the beam member cannot be supported at a predetermined position on the upper end portion of the guide rail.

  The present invention has been made in view of the above-described problems. The object of the present invention is to provide a beam up to a height position at which the beam member can be fixed to a rod member suspended downward from the top of the guide rail. An object of the present invention is to provide a method for installing an elevator hoistway top device that allows a member to be lifted smoothly to improve installation.

  In order to achieve the above-mentioned object, the present invention provides a top part of one of a pair of guide rails, each of which is a pair of guide rails that guides the raising and lowering of a lifting body that is standing in a hoistway and is a passenger car or a counterweight. A pair of rod members each comprising a pair of long rods and short rods are provided, and the pair of rod members support the beam member on which the hoistway top device is provided. In the elevator hoistway top device installation method described above, the beam member is lifted by a first lifting machine and supported by the long rods of the pair of rod members, and then guided to the long rods. However, the beam member is further lifted by a second lifting machine and supported by the short rods of the pair of rod members. Unishi was it is characterized.

  Further, according to the present invention, the second lifting machine is installed at the top of the guide rail and lifts the beam member with a beam cradle provided below the beam member as a suspension point. It is characterized by.

  Furthermore, the present invention provides the upper rod provided on one of a pair of guide rails and the long rod and the short length so as to be located on a diagonal line of the upper support provided on the other of the pair of guide rails. The rod is detachably fixed.

  According to the present invention, the beam member can be smoothly and safely lifted up to a height position at which the beam member can be fixed to the rod member suspended downward from the top of the guide rail. The installation method of the elevator hoistway top equipment was obtained.

  Hereinafter, the installation method of the elevator hoistway top equipment concerning one embodiment of the present invention is explained in full detail based on FIGS.

  As shown in FIGS. 1 to 7, upper supports 2 and 2 </ b> A made of steel are removed by upper support fasteners 12 at the tops of a pair of guide rails 1 and 1 </ b> A of an elevator according to an embodiment of the present invention. Fixed as possible. Rod members 3 are respectively provided on the upper supports 2 and 2A. The rod member 3 includes a pair of long rods 4 and short rods 5 and is suspended downward along the longitudinal direction of the guide rails 1 and 1A (see particularly FIG. 2).

  As shown in FIG. 2, a pair of guide rails 1 and 1A, each of which is made of steel, is detachably fixed by a receiving fastener 6A. After a beam member 7 made of steel is placed on the pair of beam receiving bases 6, the beam member 7 is detachably fixed by a beam member fastener 7A. As shown in FIG. 4, a hoistway top device including a hoisting machine 8 and a pulley 9 is attached to the beam member 7.

  As shown in FIGS. 5 to 6, an upper support in which a second lifting machine 10, 10 </ b> A for lifting a beam member 7 mounted on a pair of beam receiving bases 6 is fixed to the top of a guide rail. 2 and 2A, respectively. The second lifting machines 10 and 10A are attached to the sling wires 11 and 11A so as to lift the beam member 7 with the beam cradle 6 as a suspension point. The second lifting machines 10, 10A are configured from small chain blocks.

  The long rod 4 is made of round steel, and a thread portion is formed on the entire outer periphery or upper and lower end outer periphery. The long rod 4 has its upper end passed through a through hole (not shown) of the upper support 2, 2 </ b> A and then screwed with a connecting nut 4 </ b> A to the upper support 2, 2 </ b> A. To do. After passing the lower end of the long rod 4 through the through hole (not shown) of the beam cradle 6 to the long rod 4 and screwing the support nut 4B to the lower end, the beam cradle 6 Is attached. The length of the long rod 4 is set to a dimension that allows a sufficient installation work space for the hoistway top device and the like on the beam receiving base 6 to be secured.

  The short rod 5 is made of round steel, and a thread portion is formed on the entire outer periphery or upper and lower end outer periphery. The short rod 5 is suspended from the upper support 2, 2 </ b> A by passing the upper end of the upper support 2, 2 </ b> A through a through hole (not shown) and screwing a connecting nut 5 </ b> A to the upper end of the short rod 5. . The beam support 6 is attached to the short rod 5 by passing the lower end of the short rod 5 downward through a through hole (not shown) of the beam support 6 and screwing the support nut 4B to the lower end thereof. It is done.

  Next, the execution procedure of the elevator hoistway top equipment installation method according to an embodiment of the present invention will be described in detail based on FIG. 8 and with reference to FIGS.

  First, as shown in step S1 of FIG. 8, the upper supports 2 and 2A are fixed to the upper ends of the guide rails 1 and 1A with the upper support fasteners 12. Here, the guide rails 1 and 1A may be either car guide rails or counterweight guide rails.

  Next, when the fixing work of the upper supports 2 and 2A is completed, the process proceeds to step S2 in FIG. 8, and the pair of upper supports 2 and 2A includes a diagonal line between the upper support 2 and the upper support 2A (one point shown in FIG. 1). Each of the long rods 4 is attached using a connecting nut 4A so as to be positioned on the chain line P1) (see FIGS. 1 and 2).

  Next, if the long rods 4 are attached to the upper supports 2 and 2A, respectively, the process proceeds to step S3 in FIG. 8 so that the upper support 2 and the upper support 2A are positioned on a diagonal line (dashed line P2 shown in FIG. 1). The short rod 5 is attached to each of them using a connecting nut 5A (see FIGS. 1 and 2).

  Next, if the short rod 5 is attached to the upper supports 2 and 2A, the process proceeds to step S4 in FIG. 8, and the guide rails 1 and 1A are respectively placed at predetermined positions located below the upper supports 2 and 2A. The beam cradle 6 is fixed by a beam member fastener 7A, and the beam cradle 6 is attached to the lowermost ends of the two long rods 4 using a support nut 4B. This attachment is made by passing the lowermost end of the long rod 4 through a through hole (not shown) provided in the beam cradle 6 and then screwing the support nut 4B onto the threaded portion formed at the lowermost end. Performed (see FIG. 2).

  Next, if the beam cradle 6 is attached to the lowermost end of the long rod 4, the process proceeds to step S5 in FIG. 8, and the beam member 7 to which the pulley 9 is attached is beamed by the first lifting machine (not shown). After lifting on the cradle 6, both ends of the beam member 7 are placed on the beam cradle 6, and both ends of the beam member 7 are fixed to the beam cradle 6 with a beam member fastener 7 </ b> A. The beam member 7 is attached to the guide rails 1 and 1A (see FIG. 2).

  Next, if the beam member 7 is attached to the guide rails 1 and 1A, the process proceeds to step S6 in FIG. 8, and a machine including the hoisting machine 8 on the beam member 7 is moved by the first lifting machine (not shown). After lifting, the machine including the hoisting machine 8 is attached to the beam member 7 (see FIG. 4).

  Next, if the machine including the hoisting machine 8 is attached to the beam member 7, the process proceeds to step S7 in FIG. 8, and the upper support 2, 2A fixed to the upper end of the guide rail 1, 1A, the second lifting machine 10, 10A is installed, and after winding the sling wires 11 and 11A around the beam member 7, the hooks of the second lifting machines 10 and 10A are hung on the sling wires 11 and 11A, and the guide rails 1 and 1A and the beam The fixation with the cradle 6 is released (see FIG. 5).

  Next, by operating the second lifting machine 10, 10A, as shown in step S8 of FIG. 8, the bottom end of the short rod 5 passes through the through hole of the beam receiving base 6 and is formed at the bottom end thereof. The beam member 7 and the beam cradle 6 are lifted up to a position where the support nut 5B can be screwed onto the threaded portion while being guided by the two long rods 4 (see FIG. 6).

  Next, as shown in step S9 of FIG. 8, the beam nut 6 is attached to the lowermost ends of the two short rods 5 by screwing the support nuts 5B to the lowermost ends of the two short rods 5; The two long rods 4 are removed from the upper support 2, 2 </ b> A and the beam cradle 6 (see FIGS. 6 and 7).

  Next, as shown in step S10 of FIG. 8, the two short rods 5 are replaced in place of the two long rods 4 that have been removed.

  Next, as shown in step S11 of FIG. 8, the beam member 7 and the beam cradle 6 are properly connected by operating the second lifting machine 10, 10A while being guided by the four short rods 5. Lift (lift) to position.

  Next, as shown in step S12 of FIG. 8, if the beam member 7 and the beam cradle 6 are lifted up to their proper positions, the support nut 5B screwed to the lowermost end of the short rod 5 is tightened together. As shown in step S13 of FIG. 8, tightening of each part such as fastening of the guide rails 1, 1 </ b> A and the beam cradle 6 is performed.

  Finally, as shown in step S14 of FIG. 8, the installation work is completed by removing the second lifting machines 10, 10A and the sling wires 11, 11A.

  As described above, according to the execution procedure of the elevator hoistway top device installation method according to the above embodiment, the position up to the position at which the support nut 5B can be screwed to the outer periphery of the lower end of the short rod 5 is 2 The beam member 7 is lifted while being guided by the long rods 4, and the support nut 5 </ b> B is screwed onto the outer periphery of the lower end of the short rod 5, and then guided by the four short rods 5. Since the beam member 7 can be lifted to the normal position, the lifting can be performed smoothly and safely.

  Furthermore, according to the elevator hoistway top equipment installation method according to the above embodiment, the length of the long rod 4 is set to an appropriate dimension according to the circumstances of the elevator installation site, so that It is possible to secure a sufficient installation work space for hoistway top equipment and the like at

  Furthermore, according to the elevator hoistway top equipment installation method according to the above embodiment, the beam member 7 without the hoisting machine 8 attached is placed on the beam cradle 6 from the lower part of the hoistway until a pair of the beam member 7 is mounted. The first lifting machine installed separately from the second lifting machines 10 and 10A installed on the upper supports 2 and 2A is lifted and then wound around the beam member 7 in a state of being placed on the beam cradle 6. After the upper machine 8 is mounted, the beam member 7 to which the hoisting machine 8 is mounted is lifted to the normal position by the second lifting machines 10 and 10A. Can be improved.

  Furthermore, according to the elevator hoistway top device installation method according to the embodiment, the upper support 2 provided on one of the pair of guide rails 1 and 1A and the upper part provided on the other of the pair of guide rails 1 and 1A. Since the long rods 4 are provided so as to be positioned on the diagonal line of the support 2A, the beam member 7 can be suspended in a well-balanced manner, which is safe.

It is a top view which shows the state which attached the upper support to the top part of the guide rail of the elevator which concerns on one Embodiment of this invention. It is a principal part front view which shows the state which supported the beam member with a pair of long rod used for the installation method of the elevator hoistway top apparatus which concerns on one Embodiment of this invention. It is a principal part side view of FIG. It is a principal part front view which shows the state attached to the machine on the beam member supported by a pair of elongate rod used for the installation method of the elevator hoistway top apparatus which concerns on one Embodiment of this invention. It is a principal part front view which shows the state which attached the 2nd lifting machine to the upper support used for the installation method of the elevator hoistway top apparatus which concerns on one Embodiment of this invention, and wound the sling wire around the beam member. It is a principal part front view for demonstrating the state which supported the beam member with a pair of short rod used for the installation method of the elevator hoistway top apparatus which concerns on one Embodiment of this invention. It is a principal part side view for demonstrating the state which supported the beam member with a pair of short rod used for the installation method of the elevator hoistway top apparatus which concerns on one Embodiment of this invention. It is a flowchart which shows the execution procedure of the installation method of the elevator hoistway top part apparatus which concerns on one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1A A pair of guide rails 2, 2A A pair of upper support 3 Rod member 4 Long rod 4A Connection nut 4B Support nut 5B Short rod 5A Connection nut 5B Support nut 6 Beam receiving base 6A Supporting fastener 7 Beam member 7A Fastener for beam member 8 Hoisting machine 9 Pulley 10, 10A Second lifting machine 11, 11A Sling wire 12 Upper support fastener

Claims (3)

Of each pair of guide rails standing in the hoistway and guiding the raising and lowering of the lifting body which is a passenger car or a counterweight, each pair is suspended downward from the top of one of the pair of guide rails. In a method for installing an elevator hoistway top device, wherein a pair of rod members consisting of a long rod and a short rod are provided, and a beam member provided with the hoistway top device is supported by the pair of rod members. ,
The beam member is lifted by a first lifting machine and supported by the long rods of the pair of rod members, and then the beam member is further guided by the long rods by a second lifting machine. The elevator hoistway top equipment installation method characterized by being lifted and supported by the short rods of the pair of rod members.   The said 2nd lifting machine is installed in the top part of the said guide rail, The said beam member is lifted by using the beam cradle provided below the said beam member as a suspension point. The elevator hoistway top equipment installation method of 1 description.   The long rod and the short rod are detachable so as to be positioned on the diagonal line of the upper support provided on one of the pair of guide rails and the upper support provided on the other of the pair of guide rails. The method for installing an elevator hoistway top device according to claim 1 or 2, wherein the elevator hoistway top device is fixed.

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