DE1004966B - Device for automatic remote control for the leaves of doors, gates or the like. - Google Patents

Description

Automatic remote control device for door leaves, Gates or the like. The previously known devices for automatic gate opening exist from active transmitters that are attached to the non-stationary part (vehicle) are. There are electrical or optical rays of different wavelengths and modulation, simple or modulated high frequency signals or electromagnetic Sent out impulses. These act on stationary receiving systems that are connected to the Part of the system are attached. The receiving systems take the emitted rays, Signals or pulses and trigger the opening or closing process.

With other devices, the incoming vehicles are magnetic Generates fields that induce a current in a stationary built-in coil, whereby a relay is energized and the opening or closing process is initiated.

These methods all have the disadvantage that the non-stationary Part (vehicle) extensive devices for transmitting the signals or for generating them of the magnetic field must have.

Carrying such devices would be great for a pedestrian arduous.

According to the invention, these disadvantages are eliminated in that the Excitation system now not, as before, on the non-stationary part (vehicle or Pedestrians), but stationary at or behind the part of the System (gate, etc.) is attached. The non-stationary part (vehicle, pedestrian) now only has to carry a small, handy device that points exactly to the transmitter system is matched; due to the effect of the device on the stationary control system the door operation process is initiated.

A high-frequency generator is provided for the stationary part, which can be set to a fixed frequency. At the grid resistor of the oscillator tube occurs when approaching a passive one tuned to the same resonance frequency Oscillating circuit on a reduction in the voltage drop. The voltage drop controls, if necessary after amplification, an electromagnetic or electronic one Relay that unlocks or opens the sash. The resonance frequency of the high-frequency generator and that of the passive oscillation circuit are advantageous Executed changeable. This results in small distances to be bridged a handy control unit, particularly suitable for pedestrians. The device can also optionally be used with a reinforcement in motor vehicles. By the device according to the invention can be saved doorman.

An exemplary embodiment is shown in the drawing. The controlling The device and the controlled device are shown separately. The part to be controlled is to be carried by a pedestrian and to be carried out as simply and easily as possible. In the present Case it consists of a passive high-frequency oscillating circuit C "-L, for example from the The size of a pocket mirror or a slim pocket calendar. The same can can be carried easily and inconspicuously by authorized persons and in the vicinity of the oscillator tuning circuit (antenna coil).

The controlled device at the door to be unlocked has a high-frequency generator HF , which can be precisely set to a specific, predetermined frequency. The setting is made in the present case by changing the size of the capacitance C. When the oscillator circuit of the high- frequency generator is approached by the passive oscillating circuit C "-L, which is tuned to the same resonance frequency, the grid current of the tube R1 is greatly reduced.

The voltage drop across the resistor R, which suddenly becomes smaller, controls the following amplifier stage R2 and thus, for example, a connected electromagnetic or electronic relay that unlocks or automatically opens the door or. like. initiates.

A power supply, which can be very small by the way, is only required for the permanently installed device part. The entire effort is very small and can be reduced even further if the tubes are replaced by transistors will.

To avoid misuse by abhai @ 4engeken passive voting circles to prevent k = n a change in the resonance frequency both in the controlling and be effected in a simple manner in the controlled resonance circuit. It is just replacing the capacitor Cx and adjusting the resonance capacitor C. necessary. The arrangement can also be used to achieve increased security in the Be designed in such a way that two or more resonance frequencies are used, which can be used for control in any specified combination. Included the controlling part does not become much larger because the resonance circles are common are to be accommodated. In addition, there can be mutual influencing when voting must be taken into account.

Claims (4)

PATENT CLAIMS-1. Automatic remote control device for the wings of doors, gates or the like with a high-frequency active oscillation circuit and a relay, characterized in that the active oscillating circuit is stationary is arranged and when approaching a portable, on the oscillation circuit matched passive excitation device switches on the relay for actuating the sash. 2. Apparatus according to claim 1, characterized in that one or more passive Oscillation circles can be used in any combination for excitation. 3. Device according to claims 1 and 2, characterized in that a stationary high-frequency generator is provided, which is adjustable to a fixed frequency, and that the grid resistor the oscillator tube when approaching a passive, on the same resonance frequency coordinated oscillation circuit occurring reduction of the voltage drop, if necessary after amplification, controls an electromagnetic or electronic relay that causes automatic actuation. 4. Device according to claims 1 to 3, characterized in that the resonance frequency of the. High frequency generator and of the passive oscillation circuit is changeable. Considered publications: German Patent Nos. 558 536, 860 907, 883 105; British patent specification No. 524,303; U.S. Patent Nos. 2,533,116, 2,588,879.