JP2009202996A - Cart stopping device of elevator for baggage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent door opening/closing failure caused by the deformation of a landing door, a car door and guide shoes of respective doors caused by a collision with a cart, in an elevator for baggage. <P>SOLUTION: A cart stopping device 10 of the elevator for baggage includes a first stopping device 20 provided on a landing floor 18 in the vicinity of a landing door 16 and having a first stopping bar 22 preventing the movement of the cart 1 toward the landing door 16 from a landing 12 so as to be vertically movable relative to a floor surface, a second stopping device 30 provided on a car floor 15 in the vicinity of a car door 24 and having a second stopping bar 32 preventing the movement of the cart 1 toward the car door 24 from the inside of a car 14 so as to be vertically movable relative to a floor surface, and a control device 34 controlling the first and second stopping devices 20, 30 so as to retract the first and second stopping bars 22, 32 projecting from each floor into the floors after the completion of opening operation of the landing door 16 and the car door 24. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a carriage stopping device for a luggage elevator, and more particularly to a carriage stopping device for a luggage elevator that prevents the carriage from colliding with an elevator door.

  Conventionally, there are cases where an elevator for luggage is installed in a building such as an office building in addition to a passenger-only elevator, and the use of an elevator for luggage is required when the luggage is transported by a carriage or the like.

  In the elevator for luggage, when the car lands on the floor registered by the cart user with the push button, the landing doors and the car doors are opened too quickly to carry the luggage into or out of the car. There was a case where the carriage collided with the landing door or the car door in an attempt to advance the carriage before. In particular, the impact force when a cart loaded with heavy loads collides is large, so that the door is dented or deformed, or the guide shoe attached to the lower part of the door and moving along the sill groove opens and closes the impact force. May deform.

  In particular, if the guide shoe is deformed and can be held in the sill groove, an opening / closing operation failure of the elevator door occurs. In that case, the maintenance staff of the elevator management company had to be dispatched to the site to replace the guide shoe, which caused the maintenance staff to be dispatched irregularly.

  Here, Patent Document 1 discloses a car stop device in a car elevator in which a car stop is provided on a landing floor in the vicinity of the doorway so as to be able to go in and out in order to prevent the automobile from colliding with the doorway. Patent Document 2 further includes an electrically movable stopper that can vertically move the automobile in the car, and a wheel detector that detects that the automobile wheel is positioned on the electrically-operated stopper. A vehicle elevator control device is disclosed that executes control that does not raise the electric stopper based on the wheel detection output of the wheel detection means. Further, Patent Document 3 discloses a vehicle elevator apparatus that includes first and second vehicle detection devices that detect an appropriate position in the front-rear direction of the vehicle within a car.

Japanese Patent Laid-Open No. 8-28459 JP-A-8-67466 Japanese Patent Laid-Open No. 7-41265

  However, all of the above Patent Documents 1 to 3 relate to an automobile elevator in which one doorway door is provided between the hall and the car, and are installed in a building such as an office building and the hall door and the car. It is different from a luggage elevator provided with a door separately. Therefore, even if the above Patent Documents 1 to 3 are applied to a luggage elevator as they are, it is not possible to prevent the carriage from colliding with both the landing door and the car door when the carriage is loaded onto and taken off from the car.

  An object of the present invention is to provide a cart stop device for a luggage elevator that prevents deformation of a landing door and a car door due to collision of a cart, and door opening / closing failure due to deformation of a guide shoe of each door.

  A cart stop device for an elevator for luggage according to the present invention is provided on a landing floor in the vicinity of a landing door, and is capable of vertically moving a first stop member that prevents the movement of the cart from the landing toward the landing door with respect to the floor surface. And a second stop member that is provided on the car floor near the car door and that can move up and down with respect to the floor surface. The second stop member prevents movement of the carriage from the car toward the car door. A stop device and a control device that controls the first and second stop devices so that the first and second stop members protruding on the floors are immersed in the floors after the opening operation of the landing door and the car door is completed.

  In the elevator stop apparatus for luggage according to the present invention, the upper end of the first and second stop members is provided with a carriage detection sensor for detecting that the carriage is positioned upward, and the control apparatus is configured from the carriage detection sensor. When it is determined that the carriage has passed based on the output, the closing operation of the landing door and the car door may be permitted.

  In the elevator stop device for luggage according to the present invention, the control device performs control to extend the opening time of the landing door and the car door when it is not possible to determine that the cart has passed based on the output from the cart detection sensor. May be executed.

  Moreover, in the cart stop device for a luggage elevator according to the present invention, when the control device cannot determine that the cart has passed based on the output from the cart detection sensor, the cart or the user's own movement with respect to the cart user A voice message prompting the user may be generated.

  Furthermore, in the cart elevator stop device for luggage according to the present invention, the vehicle further includes a camera installed on the landing ceiling, and the control device analyzes an image photographed by the camera and determines that the cart is included in the image. Sometimes, the first and second stop devices may be operated so that the first and second stop members that are normally immersed in the floor are protruded on the floor.

  According to the truck elevator stop device for luggage according to the present invention, the stop members of the first and second stop devices respectively provided on the landing floor and the car floor are set to the floor after the opening operation of the landing door and the car door is completed. By controlling to be immersed in the vehicle, it is possible to prevent the carriage from colliding with the landing door and the car door when the carriage gets on and off, and accompanying the deformation of the landing door and the car door, and the deformation of the guide shoe of each door A door opening / closing failure can be prevented. As a result, it is possible to eliminate the situation where the maintenance staff of the elevator management company needs to be dispatched to recover the door opening / closing failure due to deformation of the guide shoe, leading to a reduction in maintenance management costs.

  Embodiments according to the present invention will be described below in detail with reference to the accompanying drawings. In this description, specific shapes, materials, numerical values, directions, and the like are examples for facilitating the understanding of the present invention, and can be appropriately changed according to the application, purpose, specification, and the like.

  FIG. 1 is a schematic configuration diagram showing a luggage elevator hall 12 and a car 14 incorporating a cargo elevator carriage stop device 10 according to an embodiment of the present invention. The hall 12 is provided with a hall door 16 that can be opened and closed. A first stop device 20 is embedded in the landing floor 18 near the landing door 16 so that the upper surface of the device is flush with the floor surface. A plurality of the first stop devices 20 are provided at appropriate intervals (for example, several tens of centimeters) so as to substantially cover the entire opening width of the landing door 16. The first stop device 20 includes a first stop rod 22 that prevents the carriage 1 from moving from the landing 12 toward the landing door. The first stop bar 22 is between a protruding position that protrudes from the floor surface 18 to a position where it interferes with the loading platform 2 or the wheel 3 of the carriage 1 and an immersion position where the upper end surface of the bar is substantially flush with the floor surface 18. It can move up and down.

  A car door 24 is provided on the car 14 so as to face the landing door 16. The car door 24 opens and closes when the driving force of the motor 26 fixed to the upper part of the car is transmitted through the open / close lever 28. Further, an engaging member (not shown) provided on the car door 24 side engages with the landing door 16 or a member attached thereto, so that the landing door 16 also opens and closes in conjunction with the opening and closing of the car door 24. It has become. The door opening / closing mechanisms 26 and 28 may be provided on at least one of the car door side and the landing door side.

  A second stop device 30 is installed on the car floor 15 in the vicinity of the car door 24 so that the upper surface of the device is flush with the floor surface. A plurality of second stop devices 30 are provided at appropriate intervals (for example, several tens of centimeters) so as to substantially cover the entire opening width of the car door 24. The second stop device 30 has a second stop rod 32 that prevents the carriage that has entered the car 14 from moving from the car 14 toward the car door 24. The second stop bar 32 is between a protruding position where it protrudes from the floor 15 to a position where it interferes with the loading platform 2 or the wheel 3 of the carriage 1 and an immersion position where the upper end surface of the bar is substantially flush with the floor 15. It can move up and down.

  A control device 34 is disposed on the upper portion of the car 14. The control device 34 is electrically connected to the motor 26, the first and second stop devices 20, 30, and is installed in the machine room or the pit to electrically control the elevator control panel 36 that controls the entire elevator for luggage. Connected. The control device 34 can be composed of a memory that stores a control program and a CPU that executes the control program. However, the control device 34 is not limited to software control, and may be configured by a hardware circuit that performs on / off control of the stop devices 20 and 30.

  FIG. 2 shows a schematic configuration of the first stopping device 20. In addition, since the 2nd stop device 30 also has the completely same structure, only the 1st stop device 20 is demonstrated. The first stop device 20 has a solenoid structure in which a cylindrical coil body 38 serving as an electromagnet in a case 21 and a first stop rod 22 corresponding to a movable plunger are disposed in the cylinder. The first stop rod 22 is biased upward by a coil spring 42 via a disc-shaped support plate 40. Thereby, at the normal time when the coil body 38 is not energized, the first stop rod 22 is held at the protruding position protruding from the landing floor 18. On the other hand, the first stop rod 22 moves downward to the dotted line position against the urging force of the coil spring 42 by the magnetic force of the coil body 38 that has become an electromagnet when electric power is supplied from the control device 34 to the coil body 38. As a result, the first stop rod 22 is in the immersion position where the upper end surface 22a thereof is substantially flush with the floor surface 18.

  A cart detection sensor 44 is embedded in the upper end surface 22a of the first stop rod 22 with the detection surface facing upward. The trolley detection sensor 44 is for detecting whether the trolley 1 is present above the trolley detection sensor 44, and is configured by a proximity sensor such as a capacitance type or an optical sensor having both light emitting and receiving elements. Can do. The detection signal of the cart detection sensor 44 is output to the control device 34.

  Next, the operation of the cart stop apparatus 10 for a luggage elevator having the above configuration will be described with reference to FIGS. FIG. 3 is a flowchart showing a flow of control executed by the control device 34, and FIG. 4 is a view showing a state in which the carriage 1 gets into the car 14 from the landing 12.

  As shown in FIG. 1, when the operator 4 pushes the carriage 1 to the elevator hall 12, the first stop rod 22 of the first stop device 20 is in a protruding position protruding from the floor surface 18. Therefore, the movement of the carriage 1 toward the landing door 16 is blocked by the first stop rod 22 and the collision of the carriage 1 with the landing door 16 can be prevented. At this time, in the second stop device 30 in the car 14 as well, the second stop rod 32 is in the protruding position where it protrudes from the floor 15.

  As shown in FIG. 3, the control device 34 first determines whether or not there is a door opening instruction from the elevator control panel 36 (step S10), and waits until there is a door opening instruction. If it is determined that there is an instruction to close the door (YES in step S10), electric power is supplied to the motor 26 to operate it, and a door opening operation is performed (step S12).

  Next, it is determined whether or not the opening of the car door 24 and the landing door 16 is completed (step S14). This determination can be made by an operation stop signal of the motor 26 indicating completion of the door opening operation. And if it determines with opening of each door 24 and 16 having been completed (it is YES at step S14), electric power will be supplied to the 1st stop device 20 and the 2nd stop device 30, respectively, and the 1st stop rod 22 and the 2nd The stop bar 32 moves downward from the protruding position to the immersive position and is stored in the floor (step S16). As a result, as shown in FIG. 4, the worker 4 who is a cart user can push the cart 1 and get into the car 14 from the landing 12. At this time, since the stop rods 22 and 32 are accommodated after the doors 16 and 24 are completely opened and the carriage 1 can enter, it is possible to prevent the carriage 1 from colliding with the doors 16 and 24 before they are fully opened. .

  Then, the control device 34 determines whether or not the carriage 1 has passed (step S18). This is determined based on the output signal from the cart detection sensor 44 of the first stop rod 22 on the landing 12 side and the output signal from the cart detection sensor 44 of the second stop rod 32 in the car 14. Specifically, it is determined whether or not the passage of the carriage 1 is detected by the carriage detection sensor 44 of the second stop rod 32 after the passage of the carriage 1 is detected by the carriage detection sensor 44 of the first stop rod 22. . At this time, when the passing of the carriage cannot be detected within a predetermined door opening time, control for extending the door opening time by several seconds from the normal time may be executed.

  If it is determined that the carriage 1 has passed (YES in step S18), the control device 34 stops the power supply to the first and second stop devices 20 and 30. As a result, the stop rods 22 and 32 of the respective stop devices 20 and 30 are moved upward by the biasing force of the coil spring 42 and returned to the protruding positions protruding from the floor surfaces 18 and 15 (step S20). As a result, in the car 14, the carriage 1 is prevented from moving toward the car door 24 by the second stop rod 32 in the protruding position, so that the carriage 1 can be prevented from colliding with the car door 24.

  When the return of the protruding positions of the stop rods 22 and 32 is completed, the door closing operation is executed after waiting for the door closing instruction (step S22).

  On the other hand, the operation when the car 14 reaches the destination floor is exactly the same as the control flow shown in FIG. That is, the door opening operation is performed based on the door opening instruction, and after the door opening operation is completed, the hall 12 and the stop rods 22 and 32 in the car are stored in the floor, whereby the carriage 1 is taken from the car 14 to the hall. Can be lowered to 12. Then, after the passage of the carriage is detected by the carriage detection sensor 44 of the stop rods 22 and 32 in the car 14 and the hall 12, the door closing operation is permitted and started.

  As described above, according to the cargo elevator cart stop device 10 of the present embodiment, each of the first and second stop devices 20, 30 provided on the floor 18 of the hall 12 and the floor 15 of the car 14, respectively. By controlling the stop bars 22 and 32 to be immersed in each floor after the door opening operation of the landing door 16 and the car door 24 is completed, the carriage 1 collides with the landing door 16 and the car door 24 when the bogie 1 gets on and off. It is possible to prevent the door opening and closing failure associated with the deformation of the landing door 16 and the car door 24 and the deformation of the guide shoes of the doors 16 and 24. As a result, it is possible to eliminate the situation where the maintenance staff of the elevator management company needs to be dispatched to recover the door opening / closing failure due to deformation of the guide shoe, leading to a reduction in maintenance management costs.

  In addition, by providing the cart detection sensor 44 at the upper end of the stop rods 22 and 32, the configuration becomes simpler and the cost can be reduced compared to installing the sensor on the landing wall surface or the car side wall surface separately from the cart stop member. There is an advantage that can be suppressed.

  Next, with reference to FIG. 5, a description will be given of a cart stop device 11 for a luggage elevator, which is a modification of the above embodiment. However, the configuration is substantially the same as that of the cart stop device 10 for a cargo elevator. The same reference numerals are assigned and redundant description is omitted, and only different configurations will be described here.

  The carriage elevator bogie stopping device 11 is further provided with a camera 50 on the landing ceiling 13 for photographing the state of the landing 12 from above. An image captured by the camera 50 is transmitted to the control device 34 via the elevator control panel 36. Further, the control device 34 is electrically connected to the car operation panel 52 so that a voice message pre-registered in the memory can be emitted from the speaker of the emergency intercom 54. This voice message prompts the worker to advance the carriage 1 further into the car 14 when getting into the car 14, for example, or prevents the carriage 1 or the worker 4 itself from being placed above the carriage detection sensor 44. It is preferable that the content prompts the user to leave the stop bars 22 and 32.

  Next, the operation of the cart elevator stop device 11 will be described. In the control flow shown in FIG. 3, when the first stop rod 22 and the second stop rod 32 are stored in the floor and it cannot be determined that the carriage 1 has passed within the predetermined door opening time, the voice message is used as an emergency message. The operator 4 can be alerted by emitting from the intercom 54.

  Further, in the cart stop device 11 for the luggage elevator, the stop rods 22 and 32 of the first and second stop devices 20 and 30 are normally in the immersive position or stored in the floor. The control device 34 analyzes the image captured by the camera 50 to determine that the cart 1 has come when a rectangular object having a predetermined area or more is included in the image, and stops the stop devices 20 and 30. The rods 22 and 32 are protruded to the protruding positions as shown in FIG. By doing in this way, when the person holding the luggage by hand without using the carriage uses the luggage elevator, the stop bars 22 and 32 are stored in the floor, so that the carriage does not trip. The convenience and safety of the elevator for luggage when not using is improved.

  The cart stop device for an elevator for luggage according to the present invention is not limited to the above-described configuration, and various improvements and modifications can be made within the technical scope of the present invention.

  For example, in the above, the first and second stop rods 22 and 32 are electromagnetically driven, but other drive mechanisms such as a motor and a mechanical element such as a rack and pinion, a lever, and a cam are used. A vertical movement mechanism or a vertical movement mechanism using a fluid cylinder may be used.

  Moreover, although the said embodiment demonstrated as a thing using a stop rod as a stop member which blocks | prevents the movement of a trolley | bogie, you may provide one plate-like stop member for a boarding board and a car, respectively.

  Furthermore, in the said embodiment, it was made to detect passing of a trolley | bogie with the non-contact detection type sensor, but it is supported by the elastic member in the state which the upper end of the stop member protrudes a little from the floor surface in the immersion position, When the wheel of the carriage passes over the stop member, it may be detected by a contact sensor provided in the stop device that the stop member is pushed downward against the biasing force of the elastic member.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic configuration diagram of a luggage elevator incorporating a luggage elevator carriage stop device according to an embodiment of the present invention. It is a schematic block diagram of the stop apparatus of FIG. It is a flowchart which shows the control performed with the control apparatus of FIG. It is a figure which shows the state which the operator pushed into the cage | basket | car from the landing. It is a figure which shows the modification of the trolley | bogie stop apparatus of the luggage elevator of FIG.

Explanation of symbols

  1 truck, 2 trucks, 3 wheels, 4 workers or truck users, 10, 11 Cargo elevator truck stops, 12 landings, 13 landing ceilings, 14 cars, 15 floors or floors, 16 landing doors, 18 landings Floor or floor, 20 First stop device, 21 Case, 22 First stop rod, 22a Stop rod upper end surface, 24 Car door, 26 Motor, 28 Opening / closing lever, 30 Second stop device, 32 Second stop rod, 34 Control device, 36 elevator control panel, 38 coil body, 40 support plate, 42 coil spring, 44 cart detection sensor, 50 camera, 52 car operation panel, 54 emergency intercom.

Claims (5)

  A first stop device provided on a landing floor near the landing door and having a first stopping member that can move the carriage from the landing toward the landing door so as to be vertically movable with respect to the floor surface, and a car near the car door A second stop device provided on the floor and configured to be movable up and down relative to the floor surface, the first stop device projecting on each floor; And a control device for controlling the first and second stop devices so that the stop member is immersed in each floor after the opening operation of the landing door and the car door is completed. In the elevator stop for a luggage elevator according to claim 1,
When the upper end of the first and second stop members is provided with a cart detection sensor for detecting that the cart is positioned above, the control device determines that the cart has passed based on the output from the cart detection sensor. A cargo elevator stop device for a luggage elevator, which permits a closing operation of a landing door and a car door. The cart stop device for an elevator for luggage according to claim 2,
A control device for a cargo elevator, wherein the control device executes control to extend the opening time of the landing door and the car door when it cannot be determined that the vehicle has passed based on the output from the cart detection sensor. In the elevator stop for a luggage elevator according to claim 2 or 3,
The control device generates a voice message that prompts the cart user to move the cart or the user when the cart cannot be determined based on the output from the cart detection sensor. Bogie stop device. In the elevator stop for a luggage elevator according to any one of claims 1 to 4,
The camera further includes a camera installed on the ceiling of the landing, and the control device analyzes the image captured by the camera and determines that the cart includes the carriage, and the first and A cargo elevator stop device for a luggage elevator, wherein the first and second stop devices are operated so that the second stop member protrudes on the floor.

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