JPS643911U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a circuit configuration diagram of a four-way control device according to an embodiment of the present invention, and Figure 2 is the input/output state of each part in the same circuit shown in Figure 1 when the first contact switch is turned on. FIG. 3 is a circuit diagram with display symbols added, and FIG. 3 is a circuit diagram with input/output status display symbols of each part when the second contact switch is turned on in the same circuit shown in FIG. Figure 4 is a circuit diagram of the same circuit shown in Figure 2 with input/output status display symbols for each part added when the third switch is turned on, and Figure 5 is a circuit diagram of the circuit shown in Figures 1 to 4. FIG. 6 is a front view of a switch unit in an embodiment of the switch unit that can be used in the above device shown in FIG.
- A cross-sectional view of the above unit along line A, Figure 7 is a plan view of a single insulating substrate in the same unit, and Figure 8 is a cross-sectional view of the above unit.
The figure is a bottom view of a single press knob in the same unit. DESCRIPTION OF SYMBOLS 1... Switch unit, 36... First contact switch, 37... Second contact switch, 38... Third contact switch, 39... Fourth contact switch, 41
...first motor (controlled means), 42...second motor (controlled means), 50...first AND circuit,
51...Second AND circuit, 52...Third AND circuit, 53...Fourth AND circuit.

Claims (1)

[Scope of utility model registration request] A four-way control device that switches and controls a controlled means in four directions using four different first, second, third, and fourth contact switches, each of which has a first, second, third, and fourth contact switch.
, a logic circuit comprising first, second, third, and fourth AND circuits each having four input terminals and controlling the controlled means in different directions with the output of each of the AND circuits; A first AND circuit connects the first input end to the first contact switch, the second input end to the fourth contact switch, and the third input end to the second contact switch. , the fourth input terminal is connected to the third contact switch, and the second AND circuit connects the first input terminal to the third contact switch and the fourth input terminal to the second contact switch. The second input terminal is connected to the second contact switch, the third input terminal is connected to the fourth contact switch, and the fourth input terminal is connected to the first contact switch, and the third AND circuit connects the second input terminal to the fourth contact switch. The first input end is connected to the contact switch, the second input end is connected to the third contact switch, the third input end is connected to the fourth contact switch, and the third input end is connected to the first contact switch. 4 input terminals are connected respectively, and the fourth A
An ND circuit connects the first input terminal to the fourth contact switch, the second input terminal to the third contact switch, the third input terminal to the second contact switch, and the third input terminal to the third contact switch. the fourth input terminal is connected to one contact switch, and each of the AN
The first input terminal of the D circuit is connected to the other second and third input terminals.
, which is formed with an inverse characteristic to the fourth input terminal and performs inverted input processing on the signals inputted to each input terminal, and stops the operation of the controlled means when each of the contact switches is operated in parallel. A four-way control device characterized by: