JP3739938B2 - Elevator car stop device for automobile - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elevator for an automobile, and more particularly, to a car stop device for an automobile on an automobile landing floor in front of an elevator door.
[0002]
[Prior art]
In an elevator for an automobile, before the elevator car arrives, the driver runs out of control due to incorrect operation of the brakes and accelerator, etc., causing an accident that falls through the landing door and falls into the elevator hoistway . In addition, even if it does not fall, there is an accident where the landing door is damaged.
[0003]
In order to prevent such an accident, for example, there is a landing device provided with a frame-shaped car stop fence in Japanese Utility Model Application Publication No. 1-72575. FIG. 1 and FIG. 2 show a landing device provided with a conventional frame-shaped vehicle stop fence. FIG. 1 is a diagram showing a state where a landing device is actually installed. There is an elevator hall door 3 surrounded by a hall three-way frame 2 on the back side. On the front landing floor 6, a conventional landing device having a stop rail 8 that can be turned upside down is fixed by anchor bolts 16. When the landing door 3 is closed, the vehicle stop fence 8 is erected to prevent the vehicle from starting. When the landing door 3 is open, the vehicle stop fence 8 is tilted in the direction B to store the groove in the frame body 7. 10 is configured so that the automobile can enter the elevator. The raising of the car stop fence 8 has been performed by a driving device 9 including a gear motor 12, a chain 13, a support shaft 14, a limit switch and the like shown in the sectional view of FIG.
[0004]
[Problems to be solved by the invention]
However, when the vehicle is stopped slightly beyond the stop line 11 for waiting for the elevator, the conventional landing device provided with the frame-shaped vehicle stop fence is overturned to be stored in the storage groove 10 when the elevator arrives. There was a possibility that the stop fence 8 hit the vehicle body. For this reason, the driver has to be careful in positioning at the stop before the elevator, which is inconvenient. In addition, in order to call the elevator, the driver has to get off and press the elevator call button 4, which is inconvenient.
[0005]
In addition, the conventional landing device promotes a psychological suggestion that the driver must not be moved forward by causing an obstacle called a stop rail to appear in front of the driver's eyes. Since the vehicle does not have enough mechanical strength to completely block the running itself, there is a possibility that the car stop fence is broken by the collision of the automobile.
[0006]
SUMMARY OF THE INVENTION An object of the present invention is to provide a car stop device that automatically stops a vehicle waiting for entry in front of an elevator at a certain position and does not move until the elevator arrives.
[0007]
Another object of the present invention is to provide a car stop device that can automatically call an elevator without the driver getting off by arriving before the elevator.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, an automobile landing floor in front of an elevator door for automobiles and free rollers provided on the landing floor for spinning the tires are arranged in at least two front and rear rows. and idle sheave, a locking device Ru is idle or locked b Ra based on the opening and closing of the elevator doors, and tachometer for detecting the roller rotational speed of the idle sheave, warning lights and the provided constant value per unit roller time or tachometer rotational speed of the is characterized that you light the warning lamp when detecting.
[0009]
According to a second aspect of the present invention, there is provided a sensor for detecting that a tire of an automobile is on an idling sheave, and an empty elevator is automatically called by the operation of the sensor.
[0010]
Further, while the tachometer is detecting the rotational speed of a predetermined value or more per unit time, the elevator arrives, even if fully open elevator doors, and wherein Rukoto idly rotating without locking the roller.
[0011]
[Action]
When the car is mounted on the idler sheave on the elevator floor when the elevator car has not arrived, the drive tire of the car is sandwiched between the free rotating rollers arranged in two rows, and the drive tire contacts only on the free roller Will have. In general, an automobile is moved by the driving force of the tire being transmitted to the ground due to friction between the surface of the driving tire and the ground which is a contact point. The driving tire on the free roller rotates in synchronization with the rotation of the tire, so that the driving force is not transmitted to the roller and is in a so-called idling state. As a result, no matter how much the driver pushes the accelerator or the engine speed increases due to a failure, the automobile cannot move while being placed on the idle sheave. When the elevator arrives, the free roller is fixed by the locking device that locks the roller in conjunction with the opening of the elevator door, so the driving force of the tire is transmitted to the fixed roller, and the car gets over the roller Thus, it is possible to move in the elevator direction.
[0012]
Further, when the vehicle gets on the idle sheave, the elevator is automatically called by the operation of the sensor by the sensor that detects that the vehicle is on the idle sheave. This eliminates the need for the driver to get off to call the elevator, which is convenient, and prevents the vehicle from running automatically when the driver gets off the vehicle, or the occurrence of a shift lever operation error when getting on the vehicle again. it can.
[0013]
Furthermore, by measuring the number of roller rotations and turning on the warning light when the specified number of rotations is exceeded, if the driver accidentally turns the drive tire at high speed, the warning light is turned on. To alert the driver.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 3 is a longitudinal sectional view showing an outline of a car stop device for an automobile elevator according to the present embodiment. The same components as those in the conventional apparatus described above are denoted by the same reference numerals, and the description thereof is omitted.
[0015]
A pit 21 for storing an idle sheave is provided on the landing floor 6 in front of the elevator entrance and there is a landing door 3 surrounded by a three-way frame 2 on the right hand side, and an elevator car having a car door 17 at the end. There is a chamber 18. In addition, on the floor 6, a detection sensor 20 that rides on the left and right sides of the vehicle is provided. Further, a warning light 29 is provided on the door 3.
[0016]
Next, the idling sheave in the pit 21 will be described. As shown in the plan view of FIG. 4, the shaft 24 penetrates the roller 22 that idles the drive tire of the automobile 19, and the shaft 24 and the roller 22 are completely set so that the roller 22 rotates as the shaft 24 rotates. It is fixed. The shaft 24 is attached to the mounting base 25 by a presser foot 26. As shown in FIG. 5, the mounting base 25 is fixed to the wall surface of the pit 21 by bolts 16. A shaft 24 provided with left and right rollers 22 at both ends of the shaft is arranged in two front and rear rows so that the left and right drive tires can be sandwiched between the front and rear rollers. At this time, the front and rear rollers 22 are arranged with a slight gap therebetween as shown in FIG. 3 so that the rollers idle in the same direction. The roller interval is set at an appropriate interval so that the drive tire 40 does not sink between the front and rear rollers 22 and the belly of the automobile 19 does not rub the elevator floor. From the aspect of ride comfort, it is preferable that the steps are arranged at intervals such that the level difference from the landing floor is reduced. For each shaft 24, a lock mechanism 23 is provided at the center position of the left and right rollers. The lock mechanism 23 is also fixed to the floor surface of the pit 21 with bolts 16. It is also possible to provide a structure in which a lock mechanism is provided at each end of the shaft, and one long roller is provided for each shaft. A tachometer 30 for detecting the number of rotations of the roller 22 is attached to any one of the front and rear shafts. In addition, a warning lamp 29 is provided at the upper part of the elevator hall door to indicate an abnormality in the rotational speed. The climbing detection sensor 20 may be any sensor such as a sensor that detects by weight in addition to a sensor that detects an obstacle by blocking an optical axis by infrared rays as long as it can detect the arrival of an automobile.
[0017]
Next, the operation of the lock mechanism 23 will be described. The idling sheave locking mechanism 23 installed in the pit 21 of the landing floor 6 is connected to a control panel 28 via a control cable 27, and the locking mechanism 23 is interlocked with a command from the control panel 28 based on opening and closing of the door. Works. That is, when the elevator cab 18 is not on the floor and the landing door 3 is fully closed, the lock mechanism 23 is unlocked and the roller 22 can always rotate freely. On the other hand, when the elevator cab 18 arrives at the floor and the landing door 3 is fully opened, a control command signal is sent from the control panel 28, and the lock mechanism 23 locks the shaft 24 and is attached to the shaft at the same time. The rotation of the roller 22 is also stopped. On the other hand, the unlocking command signal is sent from the control panel 28 at the same time as the landing door 3 that has been opened is fully closed, the lock mechanism 23 unlocks the shaft 24, and the roller 22 freely rotates again.
[0018]
Next, the entire operation including the movement of the automobile will be described with reference to FIG. The landing door 3 is fully closed and the automobile 19 is driven on the idle sheave in which the roller 22 is in a freely rotating state (S1). At this time, the drive tire 40 of the automobile 19 rides on the front and rear rollers 22 and stops. The car 19 that has entered slowly travels over the roller 22 and heads toward the landing door 3, but the roller 22 is in a freely rotating state and is idled in synchronization with the rotation of the driving tire 40, and the driving force of the tire is transmitted. The car will stop on the spot. That is, according to this embodiment, it is possible to always stop the driving tire at a position sandwiched between the two front and rear rollers 22. Further, since the driver does not have the conventional vehicle stop fence 8, it is not necessary to pay attention to the stop position. Further, even if the driver accidentally operates the accelerator after stopping once, or the drive tire is rotated due to engine trouble, the tire only idles and the vehicle does not move.
[0019]
For example, the left and right sensors 20 are provided on the landing floor 6 so that the front end of the automobile 19 when the driving tire 40 rides on the roller 22 is positioned to block the optical axis of the left and right sensors 20. When the front end of the motor cuts off the optical axis, it is detected that the vehicle has entered the idle sheave (S2). The detection sensor is also connected to the control panel 28, and the hall call registration for automatically calling the elevator is performed by the operation of the detection sensor 20 (S3). The elevator arrives (S4), enters the door opening operation, and the landing door 3 and the car door 17 are fully opened (S5). At the same time as the door is fully opened, a lock command signal is sent from the control panel 28 to the lock mechanism 23, the shaft 24 is locked by the lock mechanism 23 (S6), and the roller 22 is fixed. If the driving tire is rotated while the roller 22 is fixed, the driving force is transmitted to the roller, the automobile 19 can run, and the driver enters the car into the elevator car (S7). After entering the elevator car of the automobile 19, the elevator enters a door closing operation, and the landing door 3 and the car door 17 are fully closed (S8). At the same time as the door is fully closed, an unlock command signal is sent from the control panel 28 to the lock mechanism 23, the shaft 24 is unlocked by the lock mechanism 23 (S9), and the roller 22 returns to the idle state again. Thereafter, the elevator starts moving toward the destination floor (S10).
[0020]
On the other hand, if an inadvertent accelerator operation is performed on the idle sheave while waiting for the elevator (S11), the drive tire idles. Even if an inadvertent accelerator operation is performed, the drive tire is idle before the elevator arrives, so there is no risk that the automobile will run, but there is a risk of sudden start as soon as the roller is locked due to the elevator arrival. Therefore, when the tachometer 30 detects a roller rotation speed that is greater than or equal to a certain value per unit time of the roller 22 that rotates in synchronization with the drive tire 40 (S12), the warning lamp 29 is blinked (S13). Call attention to. Then, when the driver who notices that the warning light 29 is turned on steps on the brake, the sudden start can be prevented. From the viewpoint of safety, it is preferable that the elevator does not lock even when the elevator arrives and the door is fully opened while the tachometer 30 detects a roller rotation number greater than a certain value.
[0021]
Although the present embodiment shows an example for a front wheel drive vehicle, the rear wheel drive vehicle may have an idling sheave at a position away from the landing door 3 and is compatible with any vehicle. It is possible to have idle sheaves at two locations for the front wheel and the rear wheel so as to be able to do so.
[0022]
【The invention's effect】
By this invention, it became possible to stop the motor vehicle for elevator boarding in the fixed position between rollers. In addition, it is possible to completely prevent the automobile from moving until the elevator arrives by spinning the driving tire of the automobile. Further, unlike the conventional method using a car stop fence, since there is no fence as an obstacle, there is no fear that both the automobile and the car stop device are damaged by contact. In addition, since the elevator is automatically called when a car is entered into this device, the driver does not need to get off, increasing convenience, driving the car out of control when getting off, or operating the shift lever when getting on again Can now be prevented.
[0023]
Furthermore, by providing a warning light, it is possible to prevent a sudden start when the elevator arrives by alerting the driver when the driver accidentally rotates the drive tire.
[Brief description of the drawings]
FIG. 1 is a schematic view showing an elevator hall device having a prior art vehicle stop fence.
FIG. 2 is a partial cross-sectional view of FIG.
FIG. 3 is a longitudinal sectional view of a car stopper for an automobile elevator.
4 is a plan view of FIG. 3. FIG.
5 is a cross-sectional view taken along plane AA in FIG.
FIG. 6 is an electrical configuration diagram of the present invention.
FIG. 7 is an operation flow diagram from when an automobile rides on an idling sheave to when the elevator starts.
[Explanation of symbols]
1 elevator hoistway wall, 2 landing three-way frame, 3 landing doors, 4 elevator call buttons, 5 signal lights, 6 landing floor, 7 frame body, 8 car retaining fence, 9 drive unit, 10 storage groove, 11 stop line, 12 small gear Motor, 13 Chain, 14 Support shaft, 15 Limit switch, 16 Anchor bolt, 17 Car door, 18 Car room, 19 Car, 20 Ride detection sensor, 21 Pit, 22 Roller, 23 Lock mechanism, 24 shaft, 25 Mounting base, 26 Shaft clamp, 27 Cable, 28 Control panel, 29 Warning light, 30 Tachometer, 40 Drive tire.

Claims (3)

Lock provided in an automobile landing floor for the elevator door front car, in order to idle the tire, and idle sheave arranged free rollers at least two front and rear rows, where Ru is idle or locked b Ra based on the opening and closing of the elevator door a device, a tachometer for detecting the roller rotational speed of the idle sheave, a warning light, provided with, that you light the warning lamp when the rotation meter rotational speed higher than a certain value per unit of time the roller has detected An elevator car stop device for automobiles.   2. The elevator car stop device for an automobile according to claim 1, further comprising a sensor for detecting that the tire of the automobile is on an idling sheave and automatically calling an empty elevator by the operation of the sensor. While the tachometer is detecting the rotational speed of a predetermined value or more per unit time, according to claim 1 elevator arrives, even if fully opened elevator door, characterized by Rukoto idly rotating without locking the roller, The elevator car stop apparatus for motor vehicles of Claim 2.

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