JPH05338959A - Linear motor driven elevator device - Google Patents

Abstract

PURPOSE:To obtain a linear motor driven elevator device in which a stopped car is stayed by a stationing device. CONSTITUTION:Between an elevator shaft and a car 2, a linear motor to hold the whole load of the car 2 by its output is composed. And a stationing device 12 which operates with a simple structure at a high reliability, and engaged to the holder 11 of the elevator shaft in the loading condition by advancing an engaging piece 123 is provided to the car 2. And a stopped car 2 is held to the elevator shaft with the stationing device 12. Consequently, even though the staying time of the cage is extended, the cage can be stayed at a high reliability without losing the safety. And the tare weight of the cage is not increased too much even though the stationing device 12 is provided, the energy is saved, and the safety is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear motor driven elevator device that supports the total load of a car by its output.

[0002]

2. Description of the Related Art FIGS. 7 to 9 show, for example, JP-A-3-216.
It is a figure which shows the conventional linear motor drive elevator apparatus shown by the 477 publication. In the figure, (1) is the hoistway, (2) is the upper car that hoists up and down the hoistway (1), (3) is the hoistway (1)
A lower car for moving up and down, (4) a landing provided in the hoistway (1) apart from each other, (5) a guide rail standing on each of the corresponding walls of the hoistway (1), (6) Upper basket (2) and lower basket
A guide tool comprising roller guide shoes provided on the upper and lower parts of (3). (7) is the upper basket (2) and the lower basket
The braking devices are respectively provided on both sides in the frontal direction of the lower part of (3), arranged so as to face each other, one ends thereof are arranged corresponding to the guide rails (5), and the middle parts thereof are mutually connected by the pins (71). Anti-guide rail with pivoted arm (72), one end of arm (72)
A pair of links (73) pivotally attached to the end on the (5) side and the other ends pivotally attached to each other, and a push spring (both ends connected to the link (73) of the arm (72) respectively. 74), guide rails (5) for arms (72)
Attached to the end on the side, provided opposite the braking piece (75) and the link (73) corresponding to the guide rail (5), and the actuator (76) at the pivot joint between the links (73). Are connected by an electromagnet device (77).

Reference numeral (8) is a primary coil of a linear motor provided along the guide rail (5) in the hoistway (1), and is arranged in a vertically divided manner as shown in FIG. (9) is a permanent magnet constituting the secondary side of the linear motor provided in each of the upper car (2) and the lower car (3), corresponding to the primary coil (8), and as shown in FIG. It is divided into four parts in the vertical direction. (10) is a drive inverter device connected to the primary coil (8) of the linear motor, which is a variable voltage variable frequency control device (101) composed of transistors etc., the primary coil (8) and the variable voltage variable frequency A contactor contact (102) for connecting the control device (101) and a contact (1) for short-circuiting the primary coil (8)
It is composed of 03).

The primary coil (8) is divided in the middle of each landing (4) as shown in FIG. 7, and each is independently fed from the drive inverter unit (10). With such a configuration, the plurality of cars (2) and (3) can be independently controlled. That is, the position of the car (2) is detected and the drive inverter device (10) urges the area to the corresponding divided primary coils (8). The variable voltage variable frequency controller (101) is disclosed in, for example, Japanese Patent Laid-Open No. 61-170287.
Detailed description is omitted here.

The conventional linear motor drive elevator device is constructed as described above, and when a command to start the elevator device is issued, the contact (103) is opened and the contactor contact is opened.
(102) is closed. Also, the electromagnet device (77) is energized,
The actuator (76) links against the urging force of the push spring (74) (73)
Attract. This allows the guide rail (5) of the arm (72)
The sides are separated from the guide rails (5) and the braking device (7) is opened. Then, the variable voltage variable frequency control device (10
1) generates an alternating current of a predetermined voltage and frequency in accordance with a predetermined speed command signal to supply power to the primary coil (8), and the moving magnetic field generated by this supply drives the car (2) to move up and down. Then, when the car (2) reaches the destination floor, the electromagnet device (77) is de-energized, and the braking device (7) operates in the opposite direction to that when the electromagnet device (77) is energized, and the push spring (74 The braking operation is performed by the urging force of), and the car (2) is braked by the frictional force between the guide rail (5) and the braking piece (75). At the same time, the contact (103) is closed and the contactor contact (102) is opened. In this way, the braking operation of the braking device (7) during normal operation deactivates the electromagnet device (77) every time the car (2) stops at the destination floor,
The car (2) is braked and held on the guide rail (5).

Conventionally, a rope type elevator device has been used. This is a traction system in which a car is suspended at one end of the main rope and a counterweight is suspended at the other end, and the car is raised and lowered by the frictional force between the sheave of the hoisting machine and the main rope wound around it. It is an elevator device. However, in an elevator device for a skyscraper, it is necessary to install an extremely large number of elevator devices from the viewpoint of improving the elevator device capacity and elevator service.
For this reason, in a traction type elevator device, a hoistway is provided for each unit, and the effective space used in the building is reduced. In order to prevent the reduction of the effective use space, a one-shaft multi-car elevator device in which a plurality of cars are arranged in one hoistway has been proposed.
Also, by using a linear motor drive elevator device without a counterweight, it is possible to prevent a decrease in the effective space of the building.

[0007]

In the linear motor drive elevator device, is it necessary to continue to energize the primary coil (8) of the linear motor in order to hold the stopped cars (2) and (3) in their positions? Alternatively, as shown in FIGS. 7 to 9, there is provided a braking device (7) that operates each time the car (2) (3) is stopped. However, in the conventional linear motor drive elevator device as described above, the braking device (7) operates each time the car (2) (3) stops. Therefore, the operating frequency of the braking device (7) becomes considerably high, and it is necessary to make the operating reliability high. For this reason, the structure of the braking device (7) becomes complicated, an increase in weight is inevitable, and the weight of the cars (2), (3) increases. Therefore, each device of the linear motor drive elevator device also needs to be large in size, and there is a problem in that manufacturing costs and maintenance costs are high.

The present invention has been made in order to solve such a problem, and has a structure in which the output of a linear motor supports the full load of a car, and the stopped car is a device having a simple structure. , An object is to obtain a linear motor driven elevator device stationed with high reliability.

[0009]

In a linear motor driven elevator apparatus according to the present invention, a linear motor drive elevator is configured to move up and down the hoistway, between the hoistway and the car, and support the total load of the car by the output. A motor and a parking device, which is provided in the car and whose engaging piece advances when the car is stopped and engages in a mounted state with a support body installed in the hoistway, are provided. In addition, a support provided in the hoistway and corresponding to the landing of the hoistway, which is arranged at a position lower than the stop position of the car in the hoistway, and the car, which is provided with the engagement piece when the car is stopped A parking device is provided that moves forward and engages a support installed in the hoistway in a mounted state. In addition, a support provided on the hoistway and respectively arranged corresponding to a plurality of hoistways of the hoistway, and a support provided on the car so that the engagement piece advances and is mounted on the corresponding support when the car is stopped. And a parking device that engages in a stationary state.

Further, a support provided in the hoistway and set in the hoistway and arranged corresponding to a midway departure standard floor landing which is a connecting floor of any of a plurality of cars, and a car are provided, A parking device is provided in which when the car is stopped, the engaging piece advances and engages with the support in a mounted state. In addition, a support provided in the hoistway and configured by a landing member of the hoistway, and a support disposed at the back of the hoistway corresponding to the landing, and a car provided to correspond to the support respectively. The parking device is provided so that the engaging pieces arranged as described above move forward when the car is stopped and engage with the corresponding supports in a mounted state.

[0011]

The stopped cage of the linear motor driven elevator apparatus constructed as described above is held by the parking apparatus. The stopped car is held by the parking device at a position lower than the position corresponding to the hall. Further, the car stopped at any of the plurality of landings provided with the supports is held by the parking device on the support corresponding to the landings. In addition, the car on the transfer floor that is set in the hoistway and stopped at the departure reference floor landing on the way to become the transfer floor of any of the plurality of cars is held by a support device corresponding to the landing by a parking device. In addition, the stopped car is attached to the support near the hall and the supports placed near the back of the hoistway corresponding to the hall.
The engaging pieces are held by the respective parking devices with which they engage.

[0012]

【Example】

Example 1. 1 to 3 are views showing an embodiment of the present invention. The configuration is the same as that of FIGS. 7 and 8 except FIGS. 1 to 3. 1 to 3, (1) is a hoistway,
(2) is a car that goes up and down the hoistway (1), (4) is a landing provided in the hoistway (1) apart from each other, (41) is a threshold of the landing (4), and (5) is a hoistway ( The guide rails are erected on the corresponding walls in 1). (8) is the primary coil of the linear motor installed along the guide rail (5) in the hoistway (1), and (9) is the car
It is a permanent magnet that constitutes the secondary side of the linear motor provided in (2), and is arranged facing the primary coil (8). (1
1) is a support made of beams installed in the hoistway (1)
It is located below the (41) plane.

(12) is a parking device provided on both sides of the lower part of the car (2) in the frontal direction, and moves forward and backward with respect to the frame body (121) and the frame body (121) fastened to the lower part of the car (2). The movable piece (122) provided so that one end is pivotally attached to the lower end of the movable piece (122), and the engaging piece (123) facing the support body (11) and the frame body (121) are provided. , An electromagnet device (125) having an actuator (124), an actuator (12)
4) The cam (127) mounted on the tip of the shaft (126) provided on the side opposite to the movable piece (122), fitted to the shaft (126), the frame (121) and the cam (127). The push spring (128) and the frame (1
The magnet piece (129) is provided on the surface of the support member (11) facing the support body (11) and attracts the hanging engaging piece (123). (13) is an engaging piece of the parking device (12) provided on the car (2)
When the (123) is placed in the engagement position, the parking switch is pushed to one side of the cam (127), (14) is provided in the car (2), and the engagement piece of the parking device (12) ( It is an opening switch that is pressed to the other side of the cam (127) when the 123) is arranged at the disengagement position.

In the elevator driven by the linear motor constructed as described above, the electromagnet device (125) is urged while the car (2) is being moved up and down, and the actuator (124) receives the pressing force of the pressing spring (128). Against the support (11). As a result, the movable piece (122) is arranged on the support body (11) side, the engaging piece (123) hangs down, is attracted to the magnet piece (129), and is held at the retracted position shown by the chain line in FIG. It Also, by holding the actuator (124) close to the support (11), the opening switch (14) causes the cam (1
Pressed by 27). In addition, the car (2) may stop facing the landing (4) in response to the stop command of the elevator device, and neither the car call nor the landing call of the elevator device may occur for more than a predetermined time. At this time, the stationing device (12) operates as described below. That is, the electromagnet device (125) is deenergized, and the actuator (124) is displaced toward the anti-support body (11) by the pressing force of the pressing spring (128). As a result, the movable piece (122) is retracted, the engagement piece (123) is displaced against the attraction force of the magnet piece (129), and is arranged at the forward position shown by the solid line in FIG. Proceed above 11).

Further, due to the displacement of the actuator (124) toward the anti-support body (11), the cam (127) presses the parking switch (13) to detect the parking operation of the parking device (12). And
When the parking operation of the parking device (12) is detected, the linear motor is energized and the car (2) descends at a very low speed to support the engagement piece (123) on the support body (11). This allows the engagement piece (123) of FIG.
Since the counterclockwise rotation of the car is blocked by the retreated movable piece (122), the car (2) is located at a position lower than the threshold (41) of the landing (4) by the distance A shown in FIG. Held in.

As described above, when the car (2) is stopped by the control of the linear motor and the car (2) is subsequently parked, the parking device (12), that is, the simple structure and the reliable operation. The parking device (12), which is high in operation frequency and is limited only to a predetermined no-call time, operates. Therefore, even when the car (2) is stationed for a long time, the car (2) can be stationed with high reliability and without impairing safety.
Moreover, since the self-weight of the car (2) is less increased by equipping the parking device (12), it is possible to save operating energy and obtain a linear motor drive elevator device having excellent safety.

When the parked car (2) descends in response to a call below the parked position, the linear motor is energized to move the car (2) over the distance A shown in FIG. By ascending, the staying device (12) is instructed to perform the stay releasing operation.
Then, after detecting that the parking device (12) is unparked by the operation of the opening switch (14), the car (2) descends to answer the call. In this way, when the parking basket (2) descends,
Since the car (2) is once raised, the parking device (12) smoothly performs the parking release operation. Therefore, it is safe and can maintain a stable function for a long time.

Example 2. FIG. 4 is a diagram showing another embodiment of the present invention. The configuration is similar to that of FIGS. 1 and 2 except for FIG. In FIG. 4, (1) is a hoistway, (2) is a car that hoists up and down the hoistway (1), and (8) is a linear motor provided in the hoistway (1) along a guide rail (5). Next coil,
(9) is a permanent magnet that constitutes the secondary side of the linear motor provided in the car (2), and is arranged so as to face the primary coil (8). Reference numeral (11) is a support body composed of a beam provided in the hoistway (1), and is arranged below the sill (41) surface. (111) is a fitting hole provided on the upper surface of the support (11).

(12) is a parking device provided on each side of the lower part of the car (2) in the frontal direction, and moves forward and backward to the frame body (121) and the frame body (121) fastened to the lower part of the car (2). The movable piece (122) provided so that the movable piece (122) is provided at the lower end of the movable piece (122), the engaging piece (123) whose one end is pivotally attached to face the support body (11), and the frame body (121). Electromagnet device (125) having actuator (124), actuator (124)
Between the frame body (121) and the cam (127) by being fitted to the cam (127) and the shaft (126) mounted on the tip of the shaft (126) provided on the side opposite to the movable piece (122). The arranged push spring (128) and the frame (12
The magnet piece (129) is provided on the surface facing the support body (11) of (1) and attracts the hanging engaging piece (123).
Reference numeral (1231) is a convex portion that is provided on the lower side of the engagement piece (123) and that corresponds to the fitting hole (111). (13) is a parking switch which is provided on the car (2) and is pressed to one side of the cam (127) when the engaging piece (123) of the parking device (12) is placed at the engaging position, 14)
An open switch provided on the basket (2) and pressed to the other side of the cam (127) when the engagement piece (123) of the parking device (12) is placed in the engagement release position.

Also in this embodiment, the parking device (12) is provided as in the embodiment of FIGS. 1 to 3, and the car (2) is parked through the operation of the parking device (12). Therefore, although detailed description is omitted, it is obvious that the same operation as that of the embodiment of FIGS. 1 to 3 can be obtained in this embodiment. Further, in the embodiment of FIG. 4, the convex portion (1231) of the engaging piece (123) is fitted into the fitting hole (111) of the support body (11) during the parking operation of the parking device (12).
Fit in. As a result, even if the car (2) is horizontally vibrated during an earthquake, the engaging piece (123)
It is possible to prevent deviation from (11) and improve safety in the event of an earthquake.

Example 3. FIG. 5 is also a diagram showing another embodiment of the present invention. It should be noted that, except for FIG. 5, it is configured similarly to FIGS. In FIG. 5, (1) is a hoistway, (2) is a car that hoists up and down the hoistway (1), and (11) is provided at multiple places in the hoistway provided in the hoistway (1) apart from each other. It is a support. Also in this embodiment, the parking device (12) is provided as in the embodiment of FIGS. 1 to 3, and the car (2) is parked through the operation of the parking device (12). Therefore, although detailed description is omitted, it is apparent that the same operation as that of the embodiment of FIGS. 1 to 3 can be obtained in this embodiment. Further, in the embodiment of FIG. 5, the number of supports (11) installed is reduced with respect to the total number of halls. Therefore, the construction of the hoistway (1) is easy,
And it becomes cheaper. That is, it is conceivable that the support body (11) supports the fully loaded car (2) when the car (2) is in an emergency station, such as when a failure occurs. Because of this, the support
For (11), a considerably heavy member will be used. Therefore, by reducing the total number of supports (11), manufacturing,
Installation costs can be reduced.

Example 4. FIG. 6 is also a diagram showing another embodiment of the present invention. The configuration is similar to that of FIGS. 1 to 3 except for FIG. In FIG. 6, (1) is a hoistway, (2) is an upper car that hoists in the upper section of the hoistway (1), (21) is a middle car that hoists in the middle section of the hoistway (1), (3) Is the lower car that moves up and down the lower section of the hoistway (1), and (42) is the upper car (2) provided in the hoistway (1).
Departure standard floor on the way, (43) Departure standard floor on the middle car (21) provided on the hoistway (1), (44) Depart on the lower car (3) provided on the hoistway (1) The standard floor, (11), is provided in the hoistway (1), and is a midway departure standard floor (42), midway departure standard floor (43), departure standard floor (44), and midway departure standard floor (42), midway Departure standard floor
It is a support placed at one place between each of the (43) and the departure standard floor (44). Also in this embodiment, FIG.
A parking device (12) is provided as in the embodiment of FIG. 3, and the car (2) is parked through the operation of the parking device (12). Therefore, although detailed description is omitted, it is apparent that the same operation as that of the embodiment of FIGS. 1 to 3 can be obtained in this embodiment.

Further, in the embodiment of FIG. 6, at least the midway departure standard floor (42), the midway departure standard floor (42) and the departure standard floor (44), that is, the transit floors, are provided with the supports (11), respectively. The corresponding upper basket (2) and middle basket (2
1), lower car (3) can be stationed. When the hoistway of the hoistway (1) is long, it takes a long time from pressing the hall call button of the elevator device until the arrival of the car. For this reason, an upper car (2), a middle car (21), and a lower car (3) are installed in the hoistway (1), and the upper car descends to the lower departure reference floor as shown in FIG. 6, for example. In such a case, the lower car landing call of the lower car is forcibly generated, and the ascending operation of the lower car is eliminated. In addition, the reverse operation of this operation, that is, the lowering operation of the upper car when the lower car rises to the upper departure reference floor, is similarly excluded. By controlling the operation of the car in this way, the transportation function of a plurality of cars can be obtained by one hoistway (1), so that the usable space of the building can be increased. In addition, it is possible to arrange a large number of cars, and it is possible to improve the service for moving between floors.

Example 5. In Figure 1, the threshold of the hall (4)
The support (11) near the landing (4) is formed by also using the member (41). Further, a support body (11) is provided in the hoistway (1) near the back wall of the hoistway (1) facing the landing (4). Other than this configuration, FIG.
A linear motor drive elevator device is constructed in the same manner as in FIG. Also in this embodiment, the parking device (12) is provided as in the embodiment of FIGS. 1 to 3, and the car (2) is parked through the operation of the parking device (12). Therefore, although detailed description is omitted, it is obvious that the same operation as that of the embodiment of FIGS. 1 to 3 can be obtained in this embodiment. Also,
In the embodiment as described above, the support (1
1) is formed also as a member of the threshold (41). For this reason,
The installation cost of the support (11) can be halved, and the manufacturing and installation costs can be reduced.

[0025]

As described above, the present invention comprises a car for raising and lowering a hoistway, a space between the hoistway and a car,
A linear motor that supports the entire load of the car by the output, and a parking device that is provided in the car and that has an engaging piece that moves forward when the car is stopped and engages the support installed in the hoistway in a mounted state. Is provided. In addition, a support provided in the hoistway and corresponding to the landing of the hoistway, which is arranged at a position lower than the stop position of the car in the hoistway, and the car, which is provided with the engagement piece when the car is stopped A parking device is provided that advances and engages the support in a mounted state. In addition, the support provided in the hoistway and respectively arranged corresponding to a plurality of hoistways of the hoistway, and the support provided in the car, the engagement piece advances when the car is stopped, and the corresponding support is provided. And a parking device that engages in a mounted state.

Further, a support provided in the hoistway and provided in the car corresponding to a midway departure standard floor landing which is set in the hoistway and serves as a transfer floor for any of a plurality of cars. The parking device is provided with which the engaging piece advances and engages with the support in a mounted state when the car is stopped. In addition, a support provided in the hoistway and configured by a landing member of the hoistway, and a support arranged at the backside of the hoistway corresponding to the landing, respectively, and a support provided in the car, respectively corresponding to the support The engaging pieces arranged in the above manner are provided with a parking device that moves forward when the car is stopped and engages with the corresponding supports in a mounted state.

Thus, the stopped car is held by the parking device. The stopped car is held by the parking device at a position lower than the landing corresponding position. Further, the car stopped at any of the plurality of landings provided with the supports is held by the parking device on the support corresponding to the landings. In addition, a transit car set on the hoistway and stopped at the departure standard floor landing on the way to the transit floor of any of the plurality of cars is held by a corresponding support at the landing by a parking device. In addition, the stopped car is held by the parking device in which the engaging pieces engage with the supports disposed near the landing and on the back side of the hoistway facing the landing.

Therefore, when the car is stopped and the car is subsequently parked, the parking device having a simple structure, high operation reliability, and operating frequency limited to a predetermined no-call time operates. Therefore, even if the car stays for a long time, there is an effect that the car can be stayed with high credibility without impairing safety. In addition, when the car is parked below the landing-corresponding position and the car is lowered, the car is temporarily raised. For this reason, there is an effect that the stationing device smoothly operates to release the stationing operation, and is safe and maintains a stable function for a long time. In addition, the number of installations is reduced with respect to the total number of halls by installing the supports at every few locations. Therefore, there is an effect that the construction of the hoistway is facilitated and the manufacturing and installation costs are reduced.

In addition, a support is provided on the midway departure standard floor (42), that is, the connecting floor, so that the corresponding cars can be parked. Then, by controlling the operation of the other cars with respect to the stationed car, it is possible to obtain the transportation function of a plurality of cars by one hoistway, which has the effect of increasing the usable space of the building. Further, since the support near the landing is formed by also functioning as the member of the sill, the installation cost of the support can be reduced, and the manufacturing and installation costs can be reduced.

[Brief description of drawings]

FIG. 1 is a view showing a first embodiment of the present invention and is a side view showing a vertical section of a main part of an elevator hoistway.

FIG. 2 is a sectional view taken along line BB of FIG.

FIG. 3 is an enlarged view of section C of FIG. 2 showing a parking device in a vertical section.

FIG. 4 is a view corresponding to FIG. 3 showing a second embodiment of the present invention.

FIG. 5 is a conceptual vertical sectional view of an elevator hoistway showing a third embodiment of the present invention.

FIG. 6 is a conceptual vertical sectional view of an elevator hoistway showing a fourth embodiment of the present invention.

FIG. 7 is a conceptual vertical cross-sectional view of a conventional linear motor drive elevator device.

8 is an enlarged perspective view showing a main part of the hoistway of FIG. 7.

9 is a conceptual plan view of a braking device provided in the lower portion of the car in FIG. 7.

[Explanation of symbols]

 1 hoistway 2 car 4 landing 8 primary coil of linear motor 9 permanent magnet of secondary side of linear motor 11 support 12 parking device 42 midway departure standard floor 43 midway departure reference floor 123 engagement piece

Claims (5)

[Claims] 1. A linear motor for raising and lowering a hoistway, a linear motor configured between the hoistway and a car to support a full load by the car by an output, and the hoist when the car is stopped. A linear motor drive elevator device comprising: a parking device in which an engagement piece advances to a support body installed on a road and engages in a mounted state. 2. A linear motor, which is arranged between the hoistway and a car to support the entire load by the car by raising and lowering the hoistway, and a car provided on the hoistway for a landing of the hoistway. A supporting body arranged below the stopping position of the car in the corresponding hoistway, and an engaging piece that is provided on the car and moves forward to the supporting body when the car is stopped to engage the mounting state. A linear motor driven elevator device with a matching parking device. 3. A car for raising and lowering a hoistway, a linear motor configured between the hoistway and a car to support a full load by the car by an output, and a plurality of hoistways provided in the hoistway. And a parking device that is provided in the car and has an engaging piece that moves forward and engages in a mounted state on the support that is provided in the car and corresponds to the stop of the car. Linear motor driven elevator equipment. 4. A linear motor that is configured between the hoistway and a car to support a full load by the car by raising and lowering the hoistway, and a car provided in the hoistway to be set in the hoistway. And a support disposed corresponding to the departure standard floor landing on the way to one of the transfer floors of the car, and an engaging piece that advances to the support when the car is stopped when the car is stopped. A linear motor drive elevator device having a parking device that engages in a mounted state. 5. A linear motor configured to move the hoistway up and down, between the hoistway and a car to support a full load by the car by an output, and a hoistway landing provided on the hoistway. The support formed of a member, the support arranged in the hoistway inward direction corresponding to the landing, and the engagement pieces arranged in the car corresponding to the support are A linear motor driven elevator device comprising: a parking device that moves forward when the car is stopped and engages with the corresponding supports in a mounted state.