JP5137013B2 - Elevator by rise-up method - Google Patents

Description

  The present invention relates to an elevator used for construction in a building in the middle of construction, and relates to an elevator by a rise-up construction method in which the ascending / descending stroke is sequentially extended upward as the building construction progresses from the lower floor to the upper floor.

  An elevator by such a rise-up method is, as disclosed in, for example, Japanese Patent Application Laid-Open No. 11-349258, sequentially suspending a suspension base portion for suspending a car and a balance weight in a hoistway according to the progress of construction work. It is configured to extend upward and downward strokes by moving upward.

  In Japanese Patent Application Laid-Open No. 11-349258, a hoisting machine for driving an elevator is provided on a lower side surface of a hoistway, a pulley device is provided at a hanging base, and a rope wound around the hoisting machine is a pulley device at the hanging base. Although a car and a counterweight are suspended in the hoistway through the hoistway, a method of suspending the car and the counterweight in the hoistway by providing a hoisting machine directly at the suspension base is generally known.

When installing a hoisting machine at the suspension base, conventionally, a beam (machine beam) for installing the hoisting machine is installed on the building beam in the middle of construction, and the lower building beams are used according to the progress of the construction work. The machine beam is relocated to the upper building beam.
JP-A-11-349258

  However, it is sufficient if there is an appropriate building beam at the required height near the hoistway, but there are cases where there is no appropriate building beam. In such a case, a special beam will be provided for the special beam. A machine beam must be installed, which increases the labor and cost.

  The present invention has been made paying attention to such points, and the object of the present invention is to provide a hoisting machine for driving an elevator using an essential component of an elevator without depending on building beams. An object of the present invention is to provide an elevator by a rise-up construction method that can be installed in a vertical position.

According to the first aspect of the present invention, there is provided the tower and the car installed at the required height positions of the guide rail for the car and the guide rail for the counterweight provided in the elevator hoistway of the building under construction. A machine beam installed between a tower installed on the guide rail for the vehicle and a tower installed on the counterweight guide rail, and an elevator drive hoist installed on the machine beam. It is characterized by comprising.

The invention according to claim 2 is characterized in that a machine room surrounding the periphery of the hoisting machine is installed in the tower.
The invention according to claim 3 is characterized in that the tower is supported via a plate provided at a joint portion of the guide rail.

  According to this invention, the hoisting machine for driving the elevator can be installed at a required height position using the essential components of the elevator without depending on the building beam.

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

  1 and 2 show a first embodiment. FIG. 1 is a front view inside an elevator hoistway 2 formed in a housing 1 of a building in the middle of construction, and FIG. 2 is a plan view of the same. In the hoistway 2, a pair of guide rails 3a, 3b for elevator cars and a pair of guide rails 4a, 4b for counterweights are vertically installed. Each of these guide rails 3a, 3b, 4a, 4b is configured to have a required height by sequentially adding a series of rail materials having a required length, and the height of the guide rail 3a, 3b, 4a, 4b is increased according to the progress of the construction work extending to the upper floor. The length is extended.

  Each guide rail 3a, 3b, 4a, 4b has a substantially T-shaped cross section having a base portion 7 and a blade portion 8 as shown in FIG. The pair of guide rails 3a, 3b for the car is installed on one side of the hoistway 2 with the blade portions 8 facing each other, and the pair of guide rails 4a, 4b for balancing weights is the blade portion 8 Are installed on the other side in the hoistway 2 so as to face each other.

  The first tower 11 is installed at the required height position of the guide rails 3a, 3b for the car, and the second tower 12 is installed at the required height position of the guide rails 4a, 4b for the counterweight. Yes. These towers 11 and 12 are each formed in a rectangular frame shape by a combination of a pair of short materials 15a and 15b and a pair of long materials 16a and 16b. As the short material 15a, 15b and the long material 16a, 16b, for example, channel steel having a U-shaped cross section is used.

  The short material 15a, 15b is fastened and fixed to the back surface of the base 7 of the guide rails 3a, 3b, 4a, 4b by bolting using a plurality of bolts, and the long material 16a, 16b is the same as the short material 15a, 15b. It is constructed between both ends, and the ends of the long materials 16a and 16b are fastened and fixed to the ends of the short materials 15a and 15b by bolting.

  The first tower 11 and the second tower 12 are installed at the same level, and a pair of machine beams 20a and 20b are installed in parallel on the towers 11 and 12 so as to straddle both of them. . These machine beams 20a and 20b are fastened and fixed to the long members 16a and 16b of the towers 11 and 12 by bolting. A hoisting machine 25 is installed and fixed on the machine beams 20a and 20b, and a deflecting wheel 27 is rotatably supported via a support shaft 26 between the machine beams 20a and 20b.

  The hoisting machine 25 includes a sheave 28, a main rope 29 is wound around the sheave 28 and the deflecting wheel 27, and one end side of the main rope 29 passes through the space inside the first tower 11. , And the other end is suspended below the tower 12 through the space inside the second tower 12. A car 32 is disposed between the guide rails 3a and 3b, the car 32 is supported on one end side of the main rope 29, and a counterweight 33 is disposed between the guide rails 4a and 4b. The counterweight 33 is It is supported on the other end side of the main rope 29 and is suspended in the hoistway 2 so that the car 32 and the balance weight 33 are substantially balanced with each other.

  The car 32 and the counterweight 33 are respectively movably engaged with the corresponding guide rails 3a, 3b, 4a, 4b via guide devices (not shown), the hoisting machine 25 is driven, and the sheave 28 is moved. By rotating, the car 32 and the counterweight 33 are moved up and down in the opposite directions along the guide rails 3a, 3b, 4a and 4b.

  The procedure for installing this elevator will be described. First, at the required height positions of the guide rails 3a, 3b, 4a, 4b, short materials 15a, 15b are formed on the back surface of the base 7 of the guide rails 3a, 3b, 4a, 4b. Are fastened with multiple bolts. Next, long material 16a, 16b is constructed between both ends of short material 15a, 15b, these long material 16a, 16b is fastened and fixed to the short material 15a, 15b with a plurality of bolts, 12 is assembled.

  Next, machine beams 20a and 20b are installed between the long members 16a and 16b of one tower 11 and the long members 16a and 16b of the other tower 12, and these machine beams 20a and 20b are connected to the long member 16a. , 16b with a plurality of bolts. A hoisting machine 25 is installed and fixed on the machine beams 20a and 20b, and a deflecting wheel 27 is attached between the machine beams 20a and 20b via a support shaft 26. Thereafter, the main rope 29 is wound around the sheave 28 and the deflecting wheel 27 of the hoist 25, and the car 32 and the counterweight 33 are suspended in the hoistway 2 by the main rope 29. Then, the hoisting machine 25 is driven, and the car 32 is moved up and down to be used for the vertical movement of the construction worker and the transportation of building materials.

  When building construction progresses and the height of the hoistway 2 is extended, rail material is added to the upper ends of the guide rails 3a, 3b, 4a, 4b to extend the height. When the guide rails 3a, 3b, 4a and 4b are extended to a predetermined height, the towers 11 and 12 are once disassembled and removed from the guide rails 3a, 3b, 4a and 4b, and the towers are again at the required height position. 11 and 12 are installed on the guide rails 3a, 3b, 4a and 4b, and the hoisting machine 25 is installed at a required height position via the towers 11 and 12 to extend the lifting / lowering process of the elevator.

  As described above, in the rise-up elevator according to the present embodiment, the towers 11 and 12 are installed at the required height positions of the guide rails 3a, 3b, 4a, and 4b as elevator articles provided in the hoistway 2, and these towers are installed. 11 and 12, the machine beams 20 a and 20 b for installing the hoisting machine are erected, so even if there is no appropriate building beam in the required height position in the vicinity of the hoistway 2. Regardless of that, without providing special beams, that is, without depending on the structure of the building, the hoisting machine 25 can be installed using the guide rails 3a, 3b, 4a, 4b which are essential components of the elevator, Therefore, the number of construction steps is simple and the cost is advantageous.

  By the way, in the rise-up elevator in the first embodiment, there is no appropriate scaffolding around the hoisting machine 25, and therefore it is necessary to consider the safety when the inspection operator inspects the hoisting machine 25. Moreover, since the hoistway 2 in the middle of construction is open to the sky without a roof in the upper part, there is a possibility that rainwater may fall on the hoist 25 and it is necessary to take waterproof measures.

  Therefore, the rise-up elevator according to the second embodiment shown in FIGS. 3 and 4 has a structure in which the periphery of the hoisting machine 25 is surrounded by the machine room 40. The machine room 40 includes a floor material 41, a ceiling material 42, and a side wall material 43.

  The procedure for installing the machine room 40 will be described. First, when the short members 15a and 15b of the towers 11 and 12 are attached to the guide rails 3a, 3b, 4a and 4b, the short members 15a and 15b are placed on the short members 15a and 15b. Place the flooring 41 and fix it. The flooring 41 is formed with openings (not shown) for passing the guide rails 3a, 3b, 4a, 4b and the main rope. Thereafter, the long members 16a and 16b of the towers 11 and 12 are fixed on the floor material 41, machine beams 20a and 20b are further installed, and the hoisting machine 25 is installed.

  Next, the support material 44 is vertically fixed to each corner of the floor material 41 and fixed. Then, the ceiling material 42 is placed on the upper end portions of these support members 44 and fixed. As shown in FIG. 4, the ceiling member 42 is formed with openings 42a through which the guide rails 3a, 3b, 4a, 4b pass through portions corresponding to the guide rails 3a, 3b, 4a, 4b. Further, a side wall member 43 is disposed on each side surface portion between the floor material 41 and the ceiling member 42, and these side wall members 43 are abutted against the column member 44 and fixed by bolting or the like. Thereby, the machine room 40 surrounding the hoisting machine 25 is configured. The machine room 40 is installed so as to face an elevator hall (not shown) formed on the side wall of the hoistway 2. And the opening (not shown) for an operator to enter / exit is formed in the side wall material 43 facing the landing opening.

In such an elevator, when the hoisting machine 25 is inspected, an operator enters the machine room 40, and the inspecting operation can proceed safely and efficiently using the flooring 41 as a scaffold. Further, since the hoisting machine 25 is covered with the ceiling material 42, rain water during rain does not fall on the hoisting machine 25. In the machine room 40, a control panel for controlling the hoisting machine 25, a governor device for detecting overspeed of the car, and the like can be installed.
By the way, in the said embodiment, when installing the towers 11 and 12 in the guide rails 3a, 3b, 4a, 4b, the short material 15a, 15b is fastened and fixed to the guide rails 3a, 3b, 4a, 4b by bolting. I am doing so. In this case, it is necessary to form a hole for inserting a bolt in the base 7 of the guide rails 3a, 3b, 4a, 4b. If a large number of bolt insertion holes are formed in the guide rails 3a, 3b, 4a, 4b, the processing takes time and costs increase. And the hole for bolt insertion will remain as a useless disposal hole after the towers 11 and 12 are moved to another height position by rise-up or removed after the building is completed.

  In consideration of such a point, the configuration of the third embodiment shown in FIGS. 5 and 6 can be adopted. Next, the third embodiment will be described.

  As shown in FIG. 5, each of the guide rails 3a, 3b, 4a, 4b is configured to have a predetermined height by sequentially adding a plurality of rail members 50 in series, and one rail member 50 and the other rail member are formed. 50 is provided with a joint plate 51, and both rail members 50 are coupled to each other via the joint plate 51.

The eye plate 51 is disposed on the back surface of the base 7 in the guide rails 3a, 3b, 4a, 4b, and is fastened and fixed to one rail member 50 and the other rail member 50 via a plurality of bolts 52 and nuts 53, respectively. Has been. Each bolt 52 passes through the rail member 50 and the base portion 7 of the guide rails 3a, 3b, 4a, 4b, and a nut 53 is screwed to the distal end portion thereof. By tightening these bolts 52, the eye plate 51 is fixed to the guide rails 3a, 3b. , 4a, 4b are fastened and fixed to the base portion 7.
In the third embodiment, the short rails 15a and 15b of the towers 11 and 12 are arranged on the upper end surface of the eye plate 51 and are supported by the upper end surface of the guide rails 3a, 3b, 4a, 4 b is provided on the back surface of the base 7 and is fastened and fixed to the base 7 via a pair of rail clips 53.

  The rail clip 53 includes a clip body 54 for sandwiching the base portion 7 of the guide rails 3a, 3b, 4a, 4b between the short material 15a, 15b, a bolt 55 and a nut 56 for tightening the clip body 54, The bolt 54 passes through the clip body 54 and the short material 15a, 15b, and the nut 56 is screwed to the tip of the bolt 54.

When attaching the short material 15a, 15b to the guide rails 3a, 3b, 4a, 4b, first, the short material 15a, 15b is abutted against the back surface of the base 7 of the guide rails 3a, 3b, 4a, 4b, and In this state, the bolt 55 of each rail clip 53 is tightened, and the side edge of the base 7 of the guide rails 3a, 3b, 4a, 4b is connected to the short material 15a, 15b with the clip body 54. And crimping between. Thereby, the short material 15a, 15b is fastened and fixed to the guide rails 3a, 3b, 4a, 4b.
After that, the long members 16a and 16b are constructed on the short members 15a and 15b to assemble the towers 11 and 12, and between the long members 16a and 16b of the towers 11 and 12, the cases shown in FIGS. Similarly, machine beams 20a and 20b are installed, and a hoisting machine 25 is installed on the machine beams 20a and 20b.
In the case of this configuration, the load applied to the short material 15a, 15b is supported by the eye plate 51. The eye plate 51 is fastened and fixed to the guide rails 3a, 3b, 4a, and 4b by a plurality of bolts 52 that pass through the base portions 7 of the guide rails 3a, 3b, 4a, and 4b. Therefore, the load applied to the short materials 15a and 15b Can be received sufficiently stably. The short material 15a, 15b is formed on the guide rails 3a, 3b, 4a, 4b by using a clamping clip rail clip 53 without forming holes in the guide rails 3a, 3b, 4a, 4b. Therefore, the drilling of the guide rails 3a, 3b, 4a and 4b is not required, so that it does not take time and can reduce the cost.

The front view which shows the winding machine installation structure of the elevator which concerns on 1st Embodiment of this invention. The top view which shows the winding machine installation structure of the elevator which concerns on 1st Embodiment of this invention. The front view which shows the winding machine installation structure of the elevator which concerns on 2nd Embodiment of this invention. The top view which shows the winding machine installation structure of the elevator which concerns on 2nd Embodiment of this invention. The front view which shows the tower installation structure of the elevator which concerns on 3rd Embodiment of this invention. The top view which shows the tower installation structure of the elevator which concerns on 3rd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Housing 2 ... Elevator hoistway 3a. 3b ... guide rail for the car 4a. 4b ... Balance rail guide rails 11.12 ... Towers 20a. 20b ... A pair of machine beams 20a. 20b ... Machine beam 25 ... Hoisting machine 27 ... Baffle car 28 ... Sheave 29 ... Main rope 32 ... Car 33 ... Balance weight 40 ... Machine room 41 ... Floor material 42 ... Ceiling material 43 ... Side wall material 44 ... Strut material 50 ... Rail Material 51 ... Eye plate 53 ... Rail clip

Claims (3)

Torays installed at the required height positions of the guide rail for the car and the guide rail for the counterweight provided in the elevator hoistway of the building under construction,
A machine beam constructed between the tower installed on the guide rail for the car and the tower installed on the counterweight guide rail;
A hoisting machine for an elevator drive installed on the machine Nbi over arm,
The elevator by the rise-up construction method characterized by comprising. The elevator according to claim 1, wherein a machine room surrounding the hoisting machine is installed in the tower. The tower is an elevator according to rise up method according to claim 1 or 2, characterized in that it is supported by a batten provided in joint portions of the guide rail.

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