WO2003043921A1

WO2003043921A1 - Elevator

Info

Publication number: WO2003043921A1
Application number: PCT/JP2001/010229
Authority: WO
Inventors: Yukihiro Takigawa
Original assignee: Mitsubishi Denki Kabushiki Kaisha
Priority date: 2001-11-22
Filing date: 2001-11-22
Publication date: 2003-05-30
Also published as: EP1447370A1; JPWO2003043921A1; KR100514339B1; CN1250442C; JP4056475B2; CN1486272A; KR20040016836A; EP1447370B1; EP1447370A4

Abstract

An elevator in which a supporting member (10) of a hoisting machine (9) disposed close to the top of a hoistway (1) and inside the hoistway (1) by the upper end of a rail (6) for a counterweight which is erected in the hoistway to guide the elevating/lowering of the counterweight (8). The rail (6) for the counterweight is connected to a rail (3) for a car by disposing a connector (17) in the vertical direction between rail brackets (4) for fixing the rail (3) for the car to a fixing member (5) of the hoistway (1). When the rail (6) displaces perpendicularly to the axis, the displacement is transmitted to the rail (3) for the car via the connector (17) for support. Thus, the rail (6) for the counterbalance is not buckled, the strength thereof can be close to the value required for the guide function of the counterweight (8), the size of the rail (6) for the counterweight can be reduced, and the manufacturing cost of the elevator is reduced.

Description

Description Elevator equipment Technical field

The present invention relates to a support member of a hoist arranged near a top in a hoistway. The upper end of a counterweight rail which is erected on the hoistway and guides the lift of the counterweight. The present invention relates to a supporting elevator device. Background art

FIGS. 4 and 5 are views showing a conventional elevator apparatus similar to the configuration shown in, for example, Japanese Patent Application Laid-Open No. 2000-318946, FIG. FIG. 5 is a cross-sectional view of a main part of FIG. In the figure, 1 is the hoistway of the elevator 1, 2 is the car that moves up and down the hoistway 1, and 3 is the elevator that stands on the hoistway 1 and that is placed on both sides of car 2 on the horizontal projection plane, and that the car 2 moves up and down. This is a car rail for guiding.

Reference numeral 4 denotes a rail bracket, one side of which is fixed to a fixed body 5 formed of a beam forming the side surface of the hoistway 1 and a car rail 3 is fastened to the other side, and is disposed on the hoistway 1 vertically apart from each other. Have been.

Numeral 6 is a counterweight rail, which is erected on the hoistway 1, two rows are arranged horizontally apart from each other, one of the two rows is fastened to the rail bracket 4, and the other row is fixed It is fastened to brackets 7 for counterweights which are fixed to the body 5 and are vertically spaced apart from each other on the hoistway 1, and are arranged between two rows to lift and lower the hoistway 1 8 Plan to ascend and descend.

Reference numeral 9 denotes a hoisting machine arranged near the top of the hoistway 1, 10 denotes a support member having both ends connected to the upper end of the counterweight rail 6 to support the hoisting machine 9, 1 1 This is a rope-holding arm protruding near the upper end of the cage's rail 3. 1 2 is a main rope, one end of which is connected to a rope retaining arm 11 1, is wound around a car pulley 13 which is pivotally attached to the lower part of the car 2, is extended upward, and is wound around a drive sheave of a hoisting machine 9. It is hung and extended downward, and is hung around the suspension wheel 14 of the counterweight 8, and the other end is connected to the support member 10.

The conventional elevator apparatus is configured as described above, and when the hoist 9 is operated, the car 2 and the counterweight 8 move up and down in opposite directions via the main rope 12. The weight of the hoisting machine 9 and the tension of the main rope 12 are supported by the car rail 3 via the retaining arm 11 and the counterweight rail 6 via the support member 10. Is done.

In such a configuration, most of the downward load due to the tension of the main rope 1 2 acts on the counterweight rail 6 as an axial compressive force, so the counterweight rail 6 serves as a guide function of the counterweight 8. In addition to the required bending strength in the direction perpendicular to the axis, the strength due to the compressive force in the axial direction is also required, so that a larger-sized counterweight rail 6 is erected compared to when no axial compressive force is applied. You. For this reason, there was a problem that the manufacturing cost of the elevator every night was high.

In the configuration of the elevator system shown in Fig. 4 and Fig. 5, the vertical load acting on the elevator system on the hoistway 1, that is, on the building side where the elevator system is installed, is reduced and the construction cost is reduced. can do. In addition, if the building has a structure in which steel materials are assembled and a wall material on which anchor bolts cannot be erected is attached, that is, if it is a flexible structure, rail brackets are attached to the frame material that constitutes the floor of the building. 4. Bracket for counterweight 7 will be fixed.

For this reason, the vertical spacing of the rail brackets 4 and the like is the same as the floor height of the building, and the car rails 3 and the like are usually supported at intervals of 3 to 4 m. When a vertical load is applied to the counterweight rail 6, buckling occurs when the support interval is long.Therefore, it is necessary to increase the size of the counterweight rail 6 according to the support interval. is there.

Therefore, the present invention provides a counterweight for guiding the lifting of the counterweight. It is an object of the present invention to provide an elevator device that uses a standard-size counterweight weight rail and does not buckle even if the support interval is long, in contrast to the configuration in which a compressive load acts on the weight rail. Disclosure of the invention

According to the present invention, a car rail for guiding a car up and down is set up on a hoistway, and is supported on a hoistway by rail brackets that are vertically separated from each other. In addition, a lifting weight rail for guiding the lifting / lowering of the lifting weight is erected on the hoistway, and the support member of the hoisting machine arranged near the top in the hoistway is supported by the upper end, Fasten to the rail bracket supporting the car rail. Then, a connecting member is arranged between the rail brackets supporting the car rails in the vertical direction, a car rail is fastened to one side of the connecting member, and a counterweight for facing the other side. —Conclude the rules.

As a result, due to the downward load caused by the tension of the main ropes of the elevator, the displacement in the direction perpendicular to the axis generated in the counterweight rail is transmitted to the car rail via the connector and is supported. Accordingly, a counterweight rail that does not buckle can be obtained without increasing the size of the counterweight rail, so that the manufacturing cost of the elevator device can be reduced. BRIEF DESCRIPTION OF THE FIGURES

1 to 3 are views showing an example of an embodiment of a preferred elevator device according to the present invention. FIG. 1 is a longitudinal sectional view, FIG. 2 is an enlarged perspective view showing a connecting body in FIG. FIG. 3 is a plan view showing, in an enlarged manner, the connected portion of FIG.

4 and 5 are views showing a conventional elevator device, FIG. 4 is a longitudinal sectional view, and FIG. 5 is a transverse sectional view of a main part of FIG. BEST MODE FOR CARRYING OUT THE INVENTION

The present invention will be described in more detail with reference to the accompanying drawings. That is, in Figs. 1 to 3, 1 is a hoistway of an elevator, 2 is a car that moves up and down the hoistway 1, and 3 is an upright shaft that is installed on both sides of car 2 on the horizontal projection plane. This is a car rail that allows the car 2 to be raised and lowered.

Reference numeral 4 denotes a rail bracket, one side of which is fixed to a fixed body 5 made of a beam forming the side surface of the hoistway 1, and a car rail 3 is fastened to the other side, and is disposed on the hoistway 1 vertically apart from each other. Have been.

Numeral 6 is a counterweight rail, which is erected on the hoistway 1, two rows are arranged horizontally apart from each other, one of the two rows is fastened to the rail bracket 4, and the other row is fixed The lifting weight 8 is fixed to the hoistway 1 and fixed to the hoistway 1 and fastened to the counterweight bracket 7 that is vertically spaced apart from each other, and is placed between two rows to lift the hoistway 1 It is expected.

Reference numeral 9 denotes a hoisting machine arranged near the top in the hoistway 1, 10 denotes a support member having both ends connected to the upper end of the counterweight rail 6 to support the hoisting machine 9, 1 1 It is a tie-down arm protruding near the upper end of the car rail 3.

Reference numeral 1 2 denotes a main rope, and a rope clasp 15 at one end is connected to a rope clasp arm 1 1, is wound around a car pulley 13 pivotally attached to the lower part of the car 2, is extended upward, and is It is wrapped around the drive sheave of the vehicle, and is extended downward, and is wrapped around the suspension wheel 14 of the weight 8, and the rope stopper 16 at the other end is the rail bracket 4 on the support member 10. It is connected to the balance weight rail 6 on the side.

Reference numeral 17 denotes a connecting body, at least one of which is arranged between the rail brackets 4 in the vertical direction, and a car rail 3 is provided on one side at the edge of the rail clip 18 and the connecting body 17. It is fastened by the nut 19 screwed into the through end of the passed port 19 and the bolt 19. Also, On the other side, opposed counterweight rails 6 are connected to the rails 21 and the ports 22 passing through the edges of the joints 17 and nuts screwed into the insertion ends of the ports 22. Concluded by 2 3

In the elevator device configured as described above, when the hoisting machine 9 is operated, the car 2 and the counterweight 8 move up and down in opposite directions via the main rope 12. The weight of the hoisting machine 9 and the load caused by the tension of the main rope 12 are supported by the car rail 3 via the rope retaining arm 11 and the counterweight rail 6 via the support member 10. .

In such a configuration, most of the downward load due to the tension of the main rope 12 acts on the counterweight rail 6, and buckling due to this load occurs on the counterweight 8. However, at least one connecting member 17 is arranged between the rail brackets 4 in the vertical direction, and the counterweight rail 6 is connected to the car rail 3.

For this reason, due to the downward load caused by the tension of the main rope 12, the displacement in the direction perpendicular to the axis generated on the balancing rail 6 is transmitted to the car rail 3 via the connector 17 and is supported. You. Therefore, since the counterweight rail 6 does not buckle, the strength required for the guide function of the counterweight 8 can be approached.

For this reason, it is possible to reduce the size of the elevator weight device 6 to a standard size, that is, to reduce the size of the counterweight rail 6 with a simple device configuration and without complicated steps. be able to.

Further, the car rail 3 and the counterweight rail 6 are fastened to the connector 17 via the rail clips 18 and 21, respectively. For this reason, the car rail 3 and the counterweight rail 6 can be easily connected by the connecting member 17 at the appropriate position in the vertical direction, and the displacement of the counterweight rail 6 in the direction perpendicular to the axis. It is also possible to easily increase the number of conjugates 17 appropriately to limit the amount to a predetermined value. Therefore, it is possible to easily cope with the amount of displacement in the direction perpendicular to the axis of the balancing weight rail 6 that differs for each elevator device, and to take measures against the displacement of the balancing weight rail 6 in the direction perpendicular to the axis by a simple operation. It can be easily implemented.

Further, the rope stopper 16 on the counterweight 8 side of the main rope 12 is disposed near the end of the support member 10 on the side of the counterweight rail 6 fastened to the connector 17. As a result, much of the vertical load acting on the rope fastener 16 is supported by the counterweight rail 6 fastened to the coupling 17, and the load near the coupling 17 due to the load of the rope fastener 16 is maintained. The displacement of the counterweight rail 6 in the direction perpendicular to the axis is transmitted to and supported by the car rail 3 via the connector 17.

Therefore, the counterweight 17 near the connecting body 17 does not buckle, and the strength of the counterweight rail 6 near the connecting body 17 is reduced to the strength required for the guide function of the counterweight 8. As a result, the counterweight rail 6 can be standard-sized, and the manufacturing cost of the elevator can be reduced. Industrial applicability

As described above, in the elevator apparatus according to the present invention, the building in which the elevator apparatus is installed has a frame in which steel materials are assembled, and a wall material on which an anchor port cannot be erected is covered. In the case of a flexible structure to be worn, the rail bracket is fixed to the frame material constituting the floor of the building. Then, the support member of the hoisting machine located near the top of the hoistway is supported by the upper end of the counterweight rail that stands upright on the hoistway and guides the lifting of the counterweight. In this configuration, the buckling of the counterweight rail due to the compressive load in the axial direction can be eliminated as described below.

In other words, a counterweight is provided by a connecting member arranged between the vertical portions of the rail bracket for fixing the car rail to the fixed member of the hoistway. Rail is connected to the car rail. Thus, the displacement in the direction perpendicular to the axis generated on the counterweight rail is transmitted to and supported by the car rail via the connecting member. Therefore, since the counterweight rail does not buckle, the strength required for the guide function of the counterweight can be approached. For this reason, it is possible to reduce the size of the counterweight rail with a small standard size, and it is possible to obtain the effect of reducing the manufacturing cost of the elevator apparatus.

Claims

The scope of the claims

1. A hoisting machine arranged near the top of the hoistway, a car and a counterweight which are driven by the hoisting machine through main cables to move up and down the hoistway in opposite directions, and the hoistway And a car rail that guides the car up and down, and one side is fixed to the fixed body of the hoistway, and the car rail is fastened to the other side, and vertically separated from the hoistway. And two rows arranged vertically on the hoistway and separated from each other in the horizontal direction. The upper end supports the support member of the hoisting machine, and one of the two rows is A rail for a counterweight, which is fastened to the rail bracket and is arranged between the two rows to guide the lifting and lowering of the counterweight, and a rail for the car on one side and a pair on the other side The facing counterweight rail is fastened. And a connector disposed between the rail brackets in a vertical direction.

2. The car rail and the counterweight rail are fastened to a connecting body via rail clips.

Item 1. The elevator device according to item 1.

3. At the position near the counterweight rail fastened to the connecting body, a rope stopper is provided for connecting the end of the main rope on the counterweight side to the support member of the hoisting machine. The elevator as set forth in claim 1