0001]The present invention relates to an elevator system.
BACKGROUND
[0002]The elevator system as one of the safety device, mechanical limit switches for detecting that the car has exceeded the normal operating range of the terminal landings are provided. Such mechanical limit switch is installed near the bottom terminal landing near the upper terminal landing of the hoistway. The car side, the elevator direction of multiplication Rikago are cams whose longitudinal direction is provided, and enters the area where the car exceeds the normal operating range, the car of the cam to the limit switches of the elevator shaft contact with the oN state, in response to this, or to brake the elevator car by the braking device, stop the car by, for example to cut off the power supply to the main circuit of a power converter for supplying power to the hoist It has a configuration that.
[0003]
　Examples of elevator apparatus provided with a limit switch of mechanical, for example, a patent document 1. Patent Document 1, an operating member provided on the car, the position detecting switch provided in the hoistway to be operated by the operating member when the said car to car on the boarding can position has moved, after the car is moved toward the passenger can position on the car, the car on the boarding mode to stop the car in response to a signal from said position detecting switch, and the switching is possible control panel of the normal operation mode It describes a lift, characterized in that it comprises a.
CITATION
Patent Document
[0004]
Patent Document 1: Laid-Open Patent Publication No. 09-286575
Summary of the Invention
Problems that the Invention is to Solve
[0005]
　However, those described in Patent Document 1 described above, the cam provided on the car side, since the car needs to continue the operation state of the limit switch over the maximum distance that can be moved further overshoots the terminal landing , it is necessary to set relatively large its length dimension, there is a problem that leads to increased weight and cost increase.
[0006]
　SUMMARY OF THE INVENTION In view of the above circumstances, is to provide an elevator apparatus provided with a safety device that suppresses an increase in the size and weight of the elevating direction of the car.
Means for Solving the Problems
[0007]
　Elevator device according to the present invention, for achieving the above object includes a limit switch provided on the upper and lower end floors vicinity of the hoistway, mounted on the car, and the operation member to introduce a limit switch, the operation by member contacts the limit switch, the car is detected that exceeds the normal operating range, has a configuration that stops the elevator of the car to stop the operation of the hoisting machine, the operating member, characterized in that it is obtained by utilizing the car components.
Effect of the invention
[0008]
　According to the present invention, it is possible to provide elevator apparatus provided with a safety device that suppresses an increase in the size and weight of the elevating direction of the car.
[0009]
　Incidentally, problems other than those described above, and advantages will become apparent from the following description of embodiments.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010]
It is a schematic diagram illustrating an example elevator system according to FIG. 1 the present invention.
Is a side view showing FIG. 2 car 1 of Fig. 1 and its surrounding.
3 is a top view showing a and its surrounding cage 1 in Figure 1.
DESCRIPTION OF THE INVENTION
[0011]
　DESCRIPTION elevator apparatus according to the present invention will be described with reference to FIGS.
[0012]
　Figure 1 is a schematic diagram illustrating an example elevator system according to the present invention. As shown in FIG. 1, the elevator apparatus 100 according to the present invention, a car 1 and a counterweight 20 provided in the hoistway 10, a rope (main rope) 16 that connects the car 1 and the counterweight 20, having a hoisting machine 4 for driving the rope 16. Elevator apparatus 100 shown in FIG. 1 is of the traction type, hoisting machine 4, the sheave (the traction sheave) wound around the rope 16 (traction rope) to 4a and the friction drive, the pulley 12, 25 through having the structure for raising and lowering the car 1 and the counterweight 20 up and down.
[0013]
　Figure 2 is a side view showing a and its surrounding cage 1 in FIG. 1, FIG. 3 is a top view illustrating a and its surrounding cage 1 in Figure 1. As shown in FIGS. 2 and 3, the hoistway 10 is further provided with a car guide rail 2 to guide the car 1, the counterweight guide rails 3 balance for guiding the counterweight, the control panel 5, a position detector 6, is provided with a governor 7. In addition, on the cage of the car 1, the car on the hand rail 8 is provided.
[0014]
　Car guide rail 2 is fixed to the wall of the hoistway 10 via the rail bracket 11. Car 1 is slidably engaged with the car guide rail 2, to lift the hoistway 10 while being guided by the car guide rail 2.
[0015]
　Counterweight guide rails 3 balancing is fixed to the wall of the hoistway 10, (not shown in FIGS. 2 and 3) counterweight 20 is slidably engaged with the counterweight guide rails 3 balance, is guided by the counterweight guide rails 3 balance by raising and lowering the hoistway 10. Incidentally, the car 1 and the counterweight 20 and the direction of lifting the lifting direction. That is, the guide rails 2 and 3, respectively, to guide the car 1 and the counterweight 20 in the elevator direction.
[0016]
　Rope 16, along with its intermediate position is wound on the car under pulley 12 which is arranged below the car 1 ride, its ends connected to the rope end beam ports 13 provided in the hoistway 10 the top, the cage 1 It has been suspended.
[0017]
　Hoisting machine 4 is installed at an intermediate position of the hoistway 10, in its traction sheave 4a, a rope 16 which Jisuru hanging the car 1 and the counterweight 20 is wound. The hoisting machine 4, by rotating the traction sheave 4a, frictionally drives the rope 16, thereby lifting the car 1 and the counterweight 20.
[0018]
　The control panel 5 is installed at an intermediate position of the hoistway 10, and overall control of the safety device or the like of the hoisting machine 4 and elevator system.
[0019]
　Position detector 6, a shielding plate 14 disposed at a position corresponding to each floor of the hoistway 10, is attached to the car 1 has a shielding plate 14 can face PosiTector 15, shielding plate 14 and PosiTector 15 has a structure for detecting the position of the car 1 by the opposing.
[0020]
　Governor 7 detects the lifting speed of the car 1, when the car 1 reaches a predetermined overspeed exceeds the rated speed, but to emergency stop the car 1.
[0021]
　On-car handrail 8 is of a fixed type, which is installed along the outer periphery of the upper surface of the car 1, in which maintenance staff to ensure the safety when boarded on the car of the car 1 ride during maintenance work is there. On-car handrail 8 has a plurality of vertical frames 8a extending in the lifting direction of the car 1, 8b, 8c, 8d and, a transverse frame 8e provided across a plurality of vertical frames 8a ~ 8d.
[0022]
　The elevator system 100 according to the present invention, as a safety device, the limit switch 21 of the mechanical detecting that the car 1 exceeds the normal operating range of the terminal landings, provided the car 1, the limit and an operation member 24 to introduce the switch 21. 2 and 3, as the limit switch, describes the upper final limit switch 21. Upper final limit switch 21 is installed in the terminal landing near top of the hoistway 10, and cut off the power supply to the main circuit of a power converter for supplying power to the hoisting machine 4 in accordance with the turned the car 1 can be a state of operation (rising) are not allowed.
[0023]
　Upper final limit switch 21, as well as attached to one end of the limit switch bracket 22, the other end of the limit switch bracket 22 is fastened together with the car guide rail 2 is fixed to the wall of the hoistway 10 by the rail brackets 11 . Although not shown, similarly to the bottom terminal landing vicinity of the hoistway 10, a lower final limit switch to cut off the power supply to the main circuit of a power converter for supplying power to the hoisting machine 4 in accordance with the turned is is set up.
[0024]
　In Figure 2, as the operation member 24, the vertical frame 8a of the upper final limit switch on the car provided opposable located 21 handrail 8, is provided in the lower portion of the car 1, the lower final limit switch (not shown ) in composed of the car under operating cam 23 provided on the opposed positions. Vertical frame 8a, when in contact with the upper final limit switch 21, so that the top final limit switch 21 can slide, no irregularities along the elevation direction of the car 1 has a flat surface.
[0025]
　As described above, the elevator apparatus 100 according to the present invention, the operating member for actuating the final limit switch, (in the present embodiment, the on-car handrail) components of the car 1 is characterized in that it takes advantage of is there. With such a configuration, it is possible to provide the elevator apparatus having a safety device that suppresses an increase in the size and weight of the elevating direction of the car. The shape of the limit switch, in particular limitation is not, can be applied to conventional shape.
[0026]
　Next, a description will be given of the operation of the upper final limit switch 21.
[0027]
　The car 1 is some abnormality, when the normal stop position of the top floor is the normal operating range overshooting a predetermined distance (excessively rising), the vertical frame 8a of the car on the handrail 8 on the top final limit switch 21 contact with turned on, the switch signal to the control panel 5 from the upper final limit switch 21 is outputted. Control panel 5 which received this output is to cut off power supply to the main circuit of a power converter for supplying power to the hoisting machine 4, to stop the car 1.
[0028]
　Vertical frame 8a of the car on the handrail 8 in contact with the upper final limit switch 21 from the ON state, there is a time lag until the actual car 1 is stopped. Therefore, the car 1 vertical frame 8a ride from contact with the upper final limit switch 21 is further increased, during this time, the upper final limit switch 21 slides the surface of the vertical frame 8a, the upper final limit switch 21 so that the oN state is maintained.
[0029]
　On the other hand, the car 1 is some abnormality, the overshoot of the predetermined distance from the normal stop position of bottom floor (too lowered), the car under operating cam 23 is in contact with the lower final limit switch (not shown) turned on, the switch signal to the control panel 5 from the lower final limit switch is output. Control panel 5 which received this output is to cut off power supply to the main circuit of a power converter for supplying power to the hoisting machine 4, to stop the car 1.
[0030]
　As in Patent Document 1 described above, conventionally, the operating member in contact with the upper final limit switch, the operating member in contact with the lower final limit switch is manufactured in one piece, it was attached to the car. This operating member than the divided into two members, who were fabricated as a single member, because advantageous in terms of production and cost.
[0031]
　On the other hand, in the present embodiment, as described above, (a part of the members of the car on the handrail 8 for maintenance, i.e. vertical frame 8a) components car 1 to the operating member to inject upper final limit switch 21 by utilizing as, since it is not necessary to provide the operating member to inject upper final limit switch 21, as in Patent Document 1, the operating member in contact with the operating member and the lower final limit switch that contacts the upper final limit switch There can be achieved when compared to the reduction of the weight of the car to provide an operating member which is integral.
[0032]
　As described above, since the operation member continues to lift car 1 from contact with the final limit switch, but also the operation member during this time is required to continue to contact the final limit switch, the car on the hand vertical frame 8a of the rail 8, since a member having a pre-specified height for maintenance during safety, upper final limit over the maximum distance that the car 1 can be further increased overshoots the terminal landing switches 21 has sufficient size can be continued in the operating state. Therefore, it is not necessary to provide a longer operating member than the vertical frame 8a, it is possible to suppress the overhead dimensions of the car 1. That is, it is possible to suppress the increase in the elevation dimension of the car 1.
[0033]
　As a component of the car 1, the operating member to inject upper final limit switch 21, in the above embodiment, using a vertical frame 8a of the car on the handrail 8 is not limited thereto. Contacting the final limit switch 21, and, in the ascending direction of the car 1 may be any one having a slidable structure. Further, not limited to the operating member for operating the upper final limit switch 21, the car under operating cam 23 of Figure 2 may be obtained by utilizing components of the car 1.
[0034]
　As described above, according to the elevator system according to the present invention, it has been shown that can provide elevator apparatus provided with a safety device that suppresses an increase in the size and weight of the elevating direction of the car.
[0035]
　Elevator device according to the present invention is not limited to the embodiments described above, and can be implemented modified in various ways without departing from the spirit and scope of the invention described in the appended claims.
[0036]
　For example, in the above embodiment, the limit switch is turned on by the vertical frame 8a of the car on the handrail 8, it is installed in the terminal landing near top of the hoistway 10, and supplies electric power to the hoisting machine 4 in accordance with the charged application has been only upper final limit switch 21 to cut off the power supply to the main circuit of the power converter, the present invention is not limited thereto, in a plurality of limit switches are installed in the vicinity of the terminal landing can do.
[0037]
　That is, the car 1 is in the elevator apparatus provided with a limit switch which operates when excesses a predetermined distance from the normal stop position of the terminal landing, a final limit switch which operates when excessive further predetermined distance of this predetermined distance, each of the limit switches and final limit switches can also be configured to be introduced by the vertical frame 8a of the car on the handrail 8.
[0038]
　The present invention is not limited to the elevator system of the machine room-less type. The present invention, because even construction the elevator system having a machine room is the same, can be applied to elevator apparatus with elevator system as well as machine room of the machine room-less type.
DESCRIPTION OF SYMBOLS
[0039]
　1 ... car, 2 ... car guide rails, 3 ... counterweight guide rails, 4 ... hoist, 4a ... sheave (the traction sheave), 5 ... control panel, 6 ... position detector, 7 ... governor, 8 ... on-car handrail, 8a, 8b, 8c, 8d ... vertical frame, 8e ... horizontal frame, 10 ... shaft, 11 ... rail brackets, 12 ... cage under pulley, 13 ... rope end beam ports, 14 ... shield , 15 ... PosiTector, 16 ... rope, 20 ... counterweight, 21 ... upper final limit switch, 22 ... limit switch bracket 23 ... cage under operating cam, 24 ... operating member, 25 ... counterweight pulley, 100 ... elevator device .

WE CLAIM

A car provided in the hoistway, and a counterweight, the elevator apparatus provided with a rope connected to the car and the counterweight, and a hoisting machine for driving the rope,
　the hoistway a limit switch provided on the upper and lower end floors near, provided the car has an operation member for introducing the limit switch, that said operating member is brought into contact with the limit switch, the car There is detected that exceeds the normal operating range, has a configuration in which vertical movement of the car operation of the hoist is stopped is stopped,
　use the operating member, the components of the car Elevator apparatus, characterized in that to those were.
[Requested item 2]
　In the elevator apparatus according to claim 1,
　wherein the cab components are on-car handrail provided on the top of the car,
　the car on the hand rail, a plurality of extending the lifting direction of the car and vertical frame has a horizontal frame provided across the plurality of vertical frame,
　arrangement of the plurality of vertical frame, a vertical frame which is arranged at a position opposite to the limit switches said operating member Elevator apparatus, characterized in that the.
[Requested item 3]
　In the elevator apparatus according to claim 2,
　wherein the contact with the limit switch surface of the vertical frame constituting the operating member, elevator system, characterized in that the flat along the elevation direction of the car.
[Requested item 4]
　In the elevator apparatus according to claim 2,
　wherein the limit switch, the elevator apparatus characterized in that installed in the terminal landings vicinity over the hoistway.
[Requested item 5]
　In the elevator apparatus according to any one of claims 1 to 4,
　wherein the limit switch Final limit to cut off the power supply to the main circuit of a power converter for supplying power to the hoisting machine according to the insertion Elevator apparatus, characterized in that a switch.