JPH10291750A - Elevator device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To calmly reopen operation after stop of long time by simple constitution by providing a supporting rolling element or a supporting cam for an upper rolling element or a lower rolling element mounted on a rail on at least one side of the terminal landing of an elevator passage. SOLUTION: An upper rolling element 7 is arranged on the upper part of a car 4 guided with a rail 3 and elevatably moving in an elevator passage 1 by a hanging device 6, so as to be opposite to the rail 3. A lower rolling element 8 is arranged on the lower part of the car 4, so as to be on the opposite side to the hanging device 6 and opposite to the rail 3. Supporting rolling elements of a little smaller diameter are coaxially arranged respectively to the upper rolling element 7 and the lower rolling element 8. Further, a supporting cam 16 is arranged on the position opposite to the supporting roller element of the supporting arm 15 of the stopped car 4 on a lower terminal landing 2. Hereby at stopping, the supporting rolling element is run on the supporting cam 16, a gap is formed between the rail 3 and the lower rolling element 8, and vibration and noise at reoperating can be prevented from generating.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator apparatus for raising and lowering a car suspended on one side of a car floor.

[0002]

2. Description of the Related Art FIGS.
FIG. 2 is a diagram showing a conventional elevator apparatus disclosed in Japanese Patent Application Laid-Open No. 675/675, FIG. 2 is a conceptual longitudinal sectional view, FIG. And FIG. 5 is B in FIG.
FIG. 4 is a cross-sectional view taken along line B. In the figure, reference numeral 1 denotes a hoistway, 2 denotes a plurality of landings provided on the hoistway 1 so as to correspond to floors of a building in which the hoistway 1 is provided, and 3 denotes a hoistway. The rail 4 is a car that is guided by the rail 3 and moves up and down.

[0005] 5 is a floor of the car 4, 6 is a suspending device which is constituted by a main rope as a main part and suspends one side of the floor 5, and 7 is provided on an upper portion of the car 4 and is located on a side of the suspending device 6. An upper trochanter arranged and opposed to the rail 3 and constituted by an elastic roller. Reference numeral 8 denotes a lower trochanter which is provided at the lower part of the car 4 and is disposed on the side of the anti-suspension device 6 and faces the rail 3 and is manufactured in the same manner as the upper trochanter 7. Reference numeral 9 denotes a supporting trowel provided coaxially with each of the upper trochanter 7 and the lower trochanter 8, and is manufactured to have a diameter slightly smaller than the diameter of the upper trochanter 7 and the like.

[0004] Reference numeral 10 denotes a support cam, which is provided on the rail 3 and is arranged at a position facing the support trochanter 9, and is disposed at each landing 2 and the upper trochanter when the car 4 is stopped at the landing 2. 7 and a lower trochanter 8. When the car 4 stops at the landing 2, the supporting trochanter 9 rides on and is supported by the supporting cam 10, and a gap C shown in FIG. 3 is formed between the rail 3 and the upper trochanter 7.

[0005] The conventional elevator apparatus is configured as described above, and the car 4 is suspended by the suspension device 6, and the suspension reaction force is supported by the upper trochanter 7 and the lower trochanter 8.
Then, although not shown, the suspension device 6 is driven by the driving device, and the car 4 is guided by the rail 3 to move up and down. In such a configuration of the elevator apparatus, when the car 4 is stopped for a long time, a plastic deformation occurs on a contact surface of the lower trochanter 8 and the like with the rail 3.

For this reason, when the car 4 that has been stopped for a long time is operated again, the rolling of the lower trochanter 8 and the like causes vibrations in the car 4 due to the plastically deformed portions. As a countermeasure against this vibration, the supporting trochanter 9 rides on and is supported by the supporting cam 10 with the car 4 stopped at the landing 2 to form a gap C between the rail 3 and the upper trochanter 7 as shown in FIG. . This prevents the lower trochanter 8 and the like from being plastically deformed on the surface facing the rail 3, thereby preventing the occurrence of vibration at the time of restarting.

[0007]

In the conventional elevator apparatus as described above, when the car 4 passes through the landing 2, the supporting trochanter 9 rides on the supporting cam 10, so that the riding causes vibration and noise. There was a problem. In addition, since the operation of an emergency stop device (not shown) provided in the car 4 is hindered by the support cam 10,
There is a problem that the configuration of the apparatus is complicated due to the measures.

The present invention has been made to solve such a problem, and an object of the present invention is to provide an elevator apparatus capable of quietly restarting a car with a simple configuration after a long stop.

[0009]

In an elevator apparatus according to the present invention, a car which is guided by rails erected on a hoistway and ascends and descends, and a suspending apparatus which suspends one side of a floor of the car. An upper trochanter provided at the upper part of the car and disposed on the suspension side and facing the rail, and a lower trochanter provided at the lower part of the car and disposed on the anti-suspension side and facing the rail, mounted on the rail And provided at at least one of the terminal landings formed in the hoistway, and when provided in the upper terminal landing, supports the supporting trochanter mounted at the position corresponding to the upper trochanter when the car stops, and the lower terminal landing And a support cam for supporting the supporting trochanter mounted at the position corresponding to the lower trochanter when the car is stopped.

Further, in the elevator apparatus according to the present invention, the car stops at the hall where the support cam is not provided, and after a predetermined time elapses, the car is driven to stop at the terminal hall where the support cam is provided. Is provided.

In the elevator apparatus according to the present invention, the supporting cam is provided at the upper terminal landing, and the car stops at the landing where the supporting cam is not provided. A control device for stopping the vehicle at the terminal landing is provided.

Further, in the elevator apparatus according to the present invention, the support cam is provided at a position lower than the emergency stop device when the car is arranged at the most excessively lowered position from the lower terminal landing, and the supporting trochanter is provided. The car is pivotally attached to the lower end of the support arm extending downward from the lower part of the car, is arranged corresponding to the support cam position, stops at the landing where the support cam is not provided, and operates the car after a predetermined time has elapsed. A control device for stopping the vehicle at the terminal landing below is provided.

Further, in the elevator apparatus according to the present invention, the car is operated by opening the descending valve of the hydraulic system of the hydraulic elevator when a predetermined time has elapsed after the car of the hydraulic elevator stops at the landing other than the lower terminal landing. A control device for stopping the vehicle at the lower terminal landing is provided.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. FIG. 1 is a conceptual vertical sectional view showing an example of an embodiment of the present invention. In addition, other than FIG. 1, it is comprised similarly to the above-mentioned elevator apparatus of FIGS.
In the figure, reference numeral 1 denotes a hoistway, 2 denotes a plurality of landings provided on the hoistway 1 so as to correspond to floors of a building in which the hoistway 1 is provided, and 3 denotes a hoistway. Rails, 4
Is a car that is guided by the rail 3 and moves up and down.

5 is a floor of the car 4; 6 is a suspension device having a main rope as a main part and suspending one side of the floor 5; 11 is an upper fixed pulley, on which the main rope of the suspension device 6 is wound. Have been. Reference numeral 12 denotes a driving device that constitutes a main part of the suspension device 6, and is configured by a winding drum type hoist that winds a main rope of the suspension device 6. Reference numeral 13 denotes a drive device 12, that is, a control device that controls the suspension device 6.

Reference numeral 7 denotes a suspending device 6 provided on an upper part of the car 4.
An upper trochanter arranged on the side facing the rail 3 and constituted by an elastic roller. Reference numeral 8 denotes a lower trochanter, which is provided at the lower part of the car 4 and is disposed on the side of the anti-suspension device 6 and faces the rail 3, and is manufactured similarly to the upper trochanter 7. Although not shown, it is similar to FIGS. 2 to 5 described above, and is provided coaxially with each of the upper trochanter 7 and the lower trochanter 8, and has a slightly smaller diameter than the diameter of the upper trochanter 7 and the like. Is provided.

Reference numeral 14 denotes an emergency stop device provided at the lower part of the car 4, and reference numeral 15 denotes a supporting arm, which extends downward from the lower part of the car 4 and pivotally supports a lower trochanter 8 and a supporting trochanter 9 at the lower end. The length D shown in FIG. 1 is formed as described below. That is, the car 4 is excessively lowered from the landing 2 at the lower end, and the shock absorber (not shown) provided in the hoistway 1 pit is fully compressed to a position lower than the position of the emergency stop device 14 in the most excessively lowered state. The supporting trochanter 9 is formed in a length in which the supporting trochanter 9 is arranged.

Reference numeral 16 denotes a support cam, which is provided on the rail 3 and supports the arm 1 when the car 4 stops at the landing 2 at the lower end.
5 is disposed at a position facing the supporting trochanter 9 which is pivoted by 5. When the car 4 stops at the lower terminal landing 2, the supporting trochanter 9 rides on and is supported by the supporting cam 10,
The gap C between the rail 3 and the lower trochanter 8 shown in FIG.
Is formed.

In the elevator device configured as described above, the car 4 is suspended by the suspension device 6, and the suspension reaction force is supported by the upper trochanter 7 and the lower trochanter 8. Then, the suspension device 6 is driven by the driving device 12, and the car 4 is guided by the rail 3 and moves up and down. In such a configuration of the elevator apparatus, when the car 4 is stopped for a long time, a plastic deformation occurs on a contact surface of the lower trochanter 8 and the like with the rail 3.

However, after a predetermined time has elapsed after the car 4 has stopped at the landing 2 other than the lower terminal landing 2, the car 4 is driven to the lower terminal landing 2 by the operation of the control device 13 and stopped. In the lower terminal landing 2, the supporting trochanter 9 rides on the supporting cam 16, and the above-described gap C shown in FIG. 3 is formed between the rail 3 and the lower trochanter 8.

Therefore, even when the car 4 is stopped for a long time, the lower trochanter 8 does not undergo plastic deformation. Therefore, when the car 4 that has been stopped for a long time is operated again, the rolling of the lower trochanter 8 does not generate vibration and noise due to the plastically deformed portion in the car 4, so that the car 4 is calmly restarted. Can drive.

Also, the car 4 is over lowered from the lower end landing 2 and fully compressed by the shock absorber, that is, below the position of the emergency stop device 14 when the car 4 is lowered to the most over lowered position. The support cam 16 mounted on the third cam 3 is arranged. Therefore, the presence of the support cam 16 does not affect the operation of the safety gear 14, and the support cam 16
However, the mechanism for supporting the supporting trochanter 9 and the mechanism of the safety device 14 are not complicated, and the car 4 can be calmly restarted after a long stoppage with a simple device configuration.

Embodiment 2 FIG. By applying the embodiment of FIG. 1, the elevator apparatus can be easily configured as described below. That is, the support cam 16 is provided at a position corresponding to the support trochanter 9 arranged on the upper trochanter 7 with the car 4 stopped at the upper terminal landing 2. And basket 4
After stopping at the landing 2 other than the upper terminal landing 2, the car 4 is driven to the upper terminal landing 2 by the operation of the control device 13 and stopped by the operation of the control device 13.

As a result, in the upper terminal landing 2, the supporting trochanter 9 rides on the supporting cam 16 and the rail 3
The above-mentioned gap C shown in FIG. For this reason, even when the car 4 is stopped for a long time, the upper trochanter 7 is not plastically deformed. Therefore, although detailed description is omitted, the same operation as in the embodiment of FIG. 1 can be obtained in the second embodiment.

Embodiment 3 Further, the elevator apparatus can be easily configured by applying the embodiment of FIG. 1 as described below. That is, the support cam 16 is provided at a position corresponding to the support trochanter 9 arranged on the upper trochanter 7 with the car 4 stopped at the upper terminal landing 2. Also, with the car 4 stopped at the lower terminal landing 2, the lower trochanter 8
The support cam 1 is also located at a position corresponding to the support trochanter 9 arranged at
6 is provided.

After a predetermined time has elapsed after the car 4 has stopped at the landing 2 other than the upper and lower terminal landings 2, the control device 13 operates to cause the car 4 to move to either the upper terminal landing 2 or the lower terminal landing 2. It is driven and stopped. Thus, in the upper terminal landing 2, the supporting trochanter 9 rides on the supporting cam 16, and the above-described gap C shown in FIG. 3 is formed between the rail 3 and the upper trochanter 7.

In the lower terminal landing 2, the supporting trochanter 9 rides on the supporting cam 16, and the gap C shown in FIG. 3 is formed between the rail 3 and the lower trochanter 8. Therefore, even if the car 4 is stopped for a long time, no plastic deformation occurs in either the upper trochanter 7 or the lower trochanter 8. Therefore, detailed description is omitted, but the third embodiment is omitted.
In this case, the same operation as in the embodiment of FIG. 1 can be obtained.

Embodiment 4 Further, the elevator apparatus can be easily configured by applying the embodiment of FIG. 1 as described below. That is, even if the elevator apparatus in FIG. 1 is a hydraulic elevator, the same operation as in the embodiment in FIG. 1 can be obtained by configuring as in FIG.

When the elevator apparatus shown in FIG. 1 is a hydraulic elevator, the following operation can be obtained. That is, after the car 4 stops at the landing 2 other than the lower terminal landing 2, the car 4 is driven to the lower terminal landing 2 when a predetermined time has elapsed. At this time, although not shown, the car 4 can be driven to the lower terminal landing 2 by opening the descending valve of the hydraulic device, and there is no need to energize the electric motor of the hydraulic pump device. The energy required for the operation of preventing the child 8 from being plastically deformed can be reduced.

[0030]

As described above, according to the present invention, a car which is guided by rails erected on a hoistway, ascends and descends, a suspension device which suspends one side of the floor of the car, and an upper part of the car The upper trochanter is provided on the suspension side and is opposed to the rail, and the lower trochanter is provided on the lower part of the car and is disposed on the opposite to the suspension side and opposed to the rail. When provided at at least one of the terminal landings formed on the road, and when provided at the upper terminal landing, supports the supporting trochanter mounted at the position corresponding to the upper trochanter when the car stops, and is provided at the lower terminal landing. And a support cam for supporting the supporting trochanter mounted at the position corresponding to the lower trochanter when the car is stopped.

Thus, when the car stops at the terminal landing where the support cam is disposed, the support trochanter rides on the support cam and is supported, and any one of the upper trochanter and the lower trochanter corresponding to the support cam is connected to the rail. Voids are formed between them. For this reason, even if the car is stopped for a long time, plastic deformation does not occur in those corresponding to the support cams of the upper trochanter and the lower trochanter. Therefore, when the car that has been stopped for a long time is operated again, vibration and noise caused by the plastically deformed portion due to the rolling of the car corresponding to the support cams of the upper trochanter and the lower trochanter do not occur in the car, This has the effect of calming the re-operation of the car.

Further, as described above, according to the present invention, the control device stops the car at the landing where the support cam is not provided, and operates the car after a predetermined time elapses to stop at the terminal landing where the support cam is provided. Is provided.

Thus, even if the car stops at the landing where the support cam is not provided, the car stops at the terminal landing where the support cam is provided after a predetermined time has elapsed. For this reason,
At the terminal landing, the supporting trochanter rides on the supporting cam, and a gap is formed between the upper trochanter and the lower trochanter corresponding to the supporting trochanter and the rail.

Therefore, even if the car is stopped for a long time, plastic deformation does not occur in those corresponding to the supporting trochanters of the upper trochanter and the lower trochanter. Therefore, when the car that has been stopped for a long time is operated again, vibrations and noise caused by the plastically deformed portions are generated in the car due to the rolling corresponding to the supporting trochanters of the upper trochanter and the lower trochanter. This has the effect of calming the re-operation of the car.

Further, as described above, according to the present invention, the support cam is provided at the upper terminal landing, and the car is stopped at the landing where the support cam is not provided. A control device for stopping the vehicle at the terminal landing is provided.

Thus, even if the car stops at the landing where no support cam is provided, the car stops at the upper terminal landing after a predetermined time has elapsed. Therefore, at the upper terminal landing, the supporting trochanter rides on the supporting cam, and a gap is formed between the upper trochanter and the rail. Therefore, even if the car is stopped for a long time, no plastic deformation occurs in the upper trochanter. Therefore, when the car that has been stopped for a long time is operated again, vibration and noise due to the plastically deformed portion are not generated in the car due to the rolling of the upper trochanter, and the effect of calming the re-operation of the car is reduced. There is.

Since the support cam is provided at the upper terminal landing, the safety device does not pass through the position of the support cam on the rail, and the presence of the support cam does not affect the operation of the safety device. Therefore, the mechanism for supporting the supporting trochanter by the supporting cam and the mechanism of the safety device are not complicated, and the simple device configuration has an effect of calming the re-operation of the car after a long stop.

As described above, according to the present invention, the support cam is provided at a position lower than the emergency stop device when the car is arranged at the most excessively lowered position from the lower terminal landing,
The supporting trochanter is pivotally attached to the lower end of the supporting arm extending downward from the lower part of the car, and is disposed corresponding to the supporting cam position. In addition, a control device is provided in which the car stops at a landing where no support cam is provided, and after a predetermined time elapses, the car is driven to stop at a lower terminal landing.

Thus, even if the car stops at the landing where no support cam is provided, the car stops at the lower terminal landing after a predetermined time has elapsed. Therefore, in the lower terminal landing, the supporting trochanter rides on the supporting cam, and a gap is formed between the lower trochanter and the rail. Therefore, even if the car is stopped for a long time, no plastic deformation occurs in the lower trochanter. Therefore, when the car that has been stopped for a long time is operated again, vibration and noise caused by the plastically deformed portion are not generated in the car due to the rolling of the lower trochanter, and the effect of calming the reoperation of the car is reduced. There is.

Also, since the support cam is provided at a position lower than the emergency stop device when the car is disposed at the most excessively lowered position from the lower terminal landing, the emergency stop device passes through the support cam position of the rail. And the presence of the support cam does not affect the operation of the safety gear. Therefore,
The mechanism for supporting the supporting trochanter by the supporting cam and the mechanism of the safety device are not complicated, and a simple device configuration has an effect of calming the re-operation of the car after a long stop.

Also, as described above, the present invention operates the car by opening the descending valve of the hydraulic system of the hydraulic elevator after a predetermined time has elapsed after the car of the hydraulic elevator has stopped at a landing other than the lower terminal landing. Then, a control device for stopping the vehicle at the lower terminal landing is provided.

Thus, even if the car stops at the landing where the support cam is not provided, the car stops at the lower terminal landing after a predetermined time has elapsed. Therefore, in the lower terminal landing, the supporting trochanter rides on the supporting cam, and a gap is formed between the lower trochanter and the rail. Therefore, even if the car is stopped for a long time, no plastic deformation occurs in the lower trochanter. Therefore, when the car that has been stopped for a long time is operated again, vibration and noise caused by the plastically deformed portion are not generated in the car due to the rolling of the lower trochanter, and the effect of calming the reoperation of the car is reduced. There is.

Further, since the support cam is provided at a position lower than the emergency stop device when the car is arranged at the most excessively lowered position from the lower terminal landing, the emergency stop device passes through the support cam position of the rail. And the presence of the support cam does not affect the operation of the safety gear. Therefore,
The mechanism for supporting the supporting trochanter by the supporting cam and the mechanism of the safety device are not complicated, and a simple device configuration has an effect of calming the re-operation of the car after a long stop.

When the elevator is a hydraulic elevator,
After a predetermined time has elapsed after the car has stopped at a landing other than the lower terminal landing, the lowering valve of the hydraulic system is opened to drive the car to the lower terminal landing. Therefore, there is no need to energize the electric motor of the hydraulic pump device, which has the effect of reducing the energy required for the operation of preventing the lower trochanter from being plastically deformed.

[Brief description of the drawings]

FIG. 1 is a conceptual longitudinal sectional view showing Embodiment 1 of the present invention.

FIG. 2 is a conceptual longitudinal sectional view showing a conventional elevator device.

FIG. 3 is an enlarged view of a main part in cross section taken along line AA of FIG. 2;

FIG. 4 is a right side view of FIG. 3;

FIG. 5 is a sectional view taken along line BB of FIG. 4;

[Explanation of symbols]

1 hoistway, 2 landings, 3 rails, 4 baskets, 5
Floor, 6 suspension device, 7 upper trochanter, 8 lower trochanter, 9 supporting trochanter, 13 control device, 14 emergency stop device, 15
Support arm, 16 support cams.

Claims (5)

[Claims] 1. A car which is guided by rails set up on a hoistway to ascend and descend, a suspending device which suspends one side of a floor of the car, and a suspending side provided on an upper part of the car. An upper trochanter arranged at the lower side of the car and opposed to the rail, and a lower trochanter arranged at the lower side of the car and facing the rail, and mounted on the rail to form the hoistway Provided in at least one of the terminal landings
When provided at the upper terminal landing, supports the supporting trochanter mounted at the upper trochanter-corresponding position when the car stops, and when provided at the lower terminal landing, the lower portion when the car stops. An elevator apparatus comprising: a support cam that supports a supporting trochanter mounted at a trochanter-corresponding position. 2. A control device for stopping a car at a landing where a support cam is not provided, and operating the car after a predetermined time elapses to stop at a terminal landing provided with the support cam. The elevator apparatus according to claim 1, wherein 3. A support cam is provided at an upper terminal landing, and the car stops at a landing where the support cam is not provided. After a predetermined time has elapsed, the car is driven to stop at the upper terminal landing. The elevator device according to claim 1, further comprising a control device. 4. A support cam is provided at a position lower than an emergency stop device when the car is disposed at the most excessively lowered position from a lower terminal landing, and a support trochanter is extended downward from a lower portion of the car. The car is pivotally attached to the lower end of the support arm and is disposed corresponding to the support cam position, and the car stops at a landing where the support cam is not provided. 2. The elevator apparatus according to claim 1, further comprising a control device for stopping at a terminal landing. 5. After a predetermined time has elapsed after the car of the hydraulic elevator has stopped at a landing other than the lower terminal landing, the lower elevator terminal is operated by opening the descending valve of the hydraulic device of the hydraulic elevator. 5. The elevator device according to claim 4, wherein the control device stops the vehicle.