JPH0540278U - Car elevator - Google Patents

Abstract

(57) [Summary] [Purpose] Accurately detect movement of all vehicles that can be loaded without limiting loading depending on vehicle type. [Structure] A car 3 on which a car 4 can be loaded, and this car 3
A photoelectric device A ₀ -A ₀ ′ provided in the vehicle for detecting the automobile 4.
A plurality of cars are provided in the front part and the rear part of the car 3, and a contact detection means is provided on the car door.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle elevator having a vehicle position detecting device.

[0002]

[Prior Art]

 Conventionally, as for the stop position of the automobile in the automobile elevator, the means of Open Technical Report No. 8-33864 and No. 1-121084 are used, but as a means for detecting the movement of the automobile after entering the vehicle, One set of optoelectronic devices, one each fixed to the front and rear of the elevator car, was used to stop the car elevator when the light beam of the optoelectronic device was interrupted by the vehicle.

[0003]

[Problems to be solved by the device]

 However, due to the diversification of automobiles in recent years, one set of photoelectric devices fixed to the front part and the rear part of the elevator car cannot cover all vehicle types, thus limiting the vehicle types. Furthermore, in a large vehicle, there is no margin in the distance between the photoelectric device and the front and rear parts of the automobile, and there is a risk that the light beam of the photoelectric device may be interrupted and stopped at the middle due to inching during traveling. For this reason, in many large vehicles, which are likely to cause malfunctions, it is often a problem that the elevators for automobiles cannot be used.

An object of the present invention is to provide an elevator for an automobile capable of accurately detecting the movement of all the automobiles that can be loaded and stopping the elevator without limiting the loading depending on the vehicle type.

[0005]

[Means for Solving the Problems]

 The above object is to provide an elevator for an automobile equipped with a car in which a car can be loaded and a car equipped with a photoelectric device for detecting the car, and a plurality of the photoelectric devices are provided in at least one of a front part and a rear part of the car. This is achieved by detecting the end of the car in the car and providing the car contact detection means on the door of the car.

[0006]

[Action]

 The elevator for an automobile according to the present invention can accurately detect the movement of the vehicle by a plurality of photoelectric devices, and when the photoelectric device cannot detect the movement of the automobile, the contact detection means can detect the movement of the automobile. The elevator can be stopped according to the amount of movement of the vehicle according to.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1, 2 and 3.

FIG. 1 is a plan view of the interior of an automobile elevator car, FIG. 2 is a cross-sectional view of the front door 1, and FIG. 3 is a circuit diagram.

In FIG. 1, the photoelectric device is placed on the side plates 6 and 7 of the car 3 that moves up and down a hoistway (not shown) at a position at a predetermined distance from the front door 1 and at a position at a predetermined height from the car floor 5. Light portions A ₀ , B ₀ , C ₀ , and light receiving portions A ₀ ′, B ₀ ′, C ₀ ′ are provided. Further, the photoelectric devices A ₁ , B ₁ , C ₁ and the light receiving unit A ₁ ′ are provided on the side plates 6 and 7 at a predetermined distance from the rear door 1 ′ and at a predetermined height from the car floor 5. B ₁ ′ C ₁ ′ is provided. In these optoelectronic devices, for example, the light beam L ₀ is emitted from the light projecting unit A ₀ toward the light receiving unit A ₀ ′, and when the light beam L ₀ is not interrupted, the optoelectronic device switch (see FIG. (Not shown) enters and the switch for photoelectric device (not shown) is cut off when the light beam L ₀ is blocked by the automobile 4. B ₀ -B ₀ ′, C ₀ -C ₀ ′, A ₁ -A ₁ ′, B ₁ -B ₁ ′ and C ₁ -C ₁ ′ have the same structure.

A contact detection device 2 is provided on each of the front door 1 and the rear door 1 ′. In FIG. 2, the contact detection device 2 is provided near the height at which the front bumper of the car 4 comes into contact with the car floor surface 5. The rear door 1'also has the same structure. A pressure sensor, a vibration sensor, or the like is used for the contact detection device 2, and has a structure in which a contact detection switch (not shown) is turned on when a part of the automobile 4 contacts.

Next, the operation will be described with reference to FIGS.

When the automobile 4 enters the car 3 and stops, if the stop position of the automobile 4 is the position indicated by the solid line, the photoelectric device A₀-A₀', B₀-B₀′, C₀-C₀′, A₁-A₁', B₁-B₁′, C₁-C₁'Light beam L₀~ L_FiveSwitch A, not interrupted₀, A₁, B₀, B₁, C₀, C₁Is in. Therefore, switch A ₀ , A₁Causes relay 1 to switch B₀, B₁Causes relay 2 to switch C₀, C₁Then, the relays 3 are turned on. S is an interlocking switch of the contact detecting device 2 provided on the car doors 1 and 1 '. Since the automobile 4 is not in contact with the contact detecting device 2, the contact detecting switch S is cut off and the relay 4 is released. It is in.

Now, with the relays 1, 2, and 3 turned on, the contacts 1a ₁ , 2a _{1 to} 2a ₃ , 3a _{1 to} 3a ₄ of each relay are turned on, and 1b ₁ , 1b ₂ , 2b ₁ are turned off. ing. Therefore, when the relay 5 is turned on by the contacts 1a ₁ , 2a ₁ , 3a ₁ being turned on and the starting circuit 9 is formed, the starting relay 8 is turned on by the starting circuit 9 and the contact 5a ₂ of the relay 5, and the elevator is started. To do.

If the vehicle 4 moves after the elevator is activated, the light beam L ₀ or L ₃ is blocked by the vehicle. By the light beam L ₀ or L ₃ intercepted, cutting Switch A ₀ or A ₁ is, relay 1 is released, but the contacts 1a ₁ of the relay 1 is turned off, the relay 5, the contact 2a ₂ and relay 2 Since it is held by the contact 5a ₁ of the relay 5, it continues to run. When the vehicle is further moved, the light beam L ₁ or L ₄ is blocked by the vehicle 4. At this time, the switch B ₀ or B ₁ is turned off and the relay 2 is released. When the relay 2 is released, the contact 2a ₂ of the relay ₂ is cut off, the holding circuit of the relay 5 disappears, the relay 5 is released, and the contact 5a _{2 of the} relay 5 is cut off, the starter relay 8 is released, and the elevator Will stop. Therefore, after the elevator is started, if the vehicle 4 moves for some reason, one of the light beams L _{0 to} L ₅ is blocked, and the elevator is stopped for safety. Further, when the vehicle 4 is stopped in a state there is no margin in the distance between one of the optical beam L ₀ ~L _5, the most recent by inching the car 4 due to vibration or the like during activation of the light beam L ₀ ~L ₅ It is possible that the elevator will stop if one of them is interrupted, but it should be a circuit that stops the elevator when _{one of} the light beams L ₁ , L ₂ , L ₄ , L ₅ closest to the second from the automobile 4 is interrupted. Therefore, it is possible to prevent malfunction.

Next, a case where the automobile 4 is a large-sized automobile and is stopped at the position indicated by the alternate long and short dash line in FIG. 1 will be described. In this case, the light beams L ₀ , L ₁ , L ₃ and L ₄ are blocked by the automobile 4A, and the light beams L ₂ and L ₅ are unblocked. Therefore, the switches A ₀ , A ₁ , B ₀ , and B ₁ are off, and the switches C ₀ and C ₁ are on, so that the relays 1 and 2 are released and the relay 3 is on. . As a result, since the relays 5 and 6 are in the released state, the relays 7 are turned on by the contacts 1b ₂ , 2b ₁ , 3a ₄ and 6b ₁ of the relays ₁ , ₂ , 3 and 6, and the starter circuit 9 is formed and then started. The starting relay 8 is turned on by the circuit 9 and the contact 7a ₂ of the relay 7 to start the elevator.

Should the vehicle 4A move after the elevator is started, one of the light beams L ₂ and L ₅ is blocked by the vehicle 4A, the switch C ₀ or C ₁ is cut off, and the relay 3 is released. The release of the relay 3, the contact 3a ₄ of the relay 3 but expires, because the car door 1, the switch S of the contact detection device 2 provided in the 1 'has expired, the contacts of the contact 4 b ₁ and the relay 7 of the relay 4 The relay 7 is held by 7a ₁ and the elevator continues to run. When the automobile 4A further moves and comes into contact with the car doors 1 and 1 ', the contact detection device 2 operates immediately, the switch S is turned on, and the relay 4 is turned on, so that the contact 4b ₁ is disconnected and the relay 8 is turned on. Release and elevator stops.

The relay 10 is a circuit that detects that the elevator has stopped in the middle while traveling, and when the elevator stops in the middle and when the car 4 contacts the car doors 1, 1 ′. Uses the intermediate stop detection circuit 10 and the contact 4a ₁ of the contact detection relay 4 to ring the alarm buzzer BZ on the car, in the control room, or the like.

In the above embodiment, three sets of photoelectric devices are provided in the front and rear of the car to detect movement of the automobile. However, by installing a large number of sets (for example, about five sets) in the front and rear of the car, a small automobile can be installed. In case of at least about 2 sets of photoelectric devices left before and after, the elevator can be stopped when the remaining 2 or more sets of photoelectric devices operate. The vehicle can be stopped at any time, and the driver does not have to stop the vehicle at a predetermined position, so even a beginner can easily use the elevator for a vehicle.

If a photoelectric detection device is provided on the front and rear of the car and a contact detection device is additionally provided on the car door, and if the photoelectric device cannot be used, the elevator immediately stops from the photoelectric detection device to the contact detection device. The contact detection device can be applied to conventional automobile elevators by configuring the circuit so as to also switch the detection circuit for the vehicle.

[0020]

[Effect of the device]

 According to the present invention, it is possible to reliably detect the movement of the vehicle in the car regardless of the type of the vehicle, and it is possible to eliminate the elevator stop due to a malfunction. Further, there is an effect that the movement of the conventional vehicle cannot be detected, and a large vehicle which cannot be loaded can be safely transported.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of an automobile elevator of the present invention.

FIG. 2 is a sectional view of a car door of an automobile elevator.

FIG. 3 is a circuit diagram of an automobile elevator.

[Explanation of symbols]

1 Front car door 2 Contact detection device A ₀ -A ₁ Photoelectric device 3 Car 4 Car L ₀ Light beam

Claims (1)

[Scope of utility model registration request] 1. An elevator for a vehicle, comprising a car capable of loading a car and a photoelectric device provided in the car for detecting the car, wherein a plurality of the photoelectric devices are provided in at least one of a front part and a rear part of the car. An elevator for a vehicle, which detects an end of a vehicle in a car and is provided with a contact detection means for the vehicle on a door of the car.