JPH0384362U - - Google Patents

Description

[Brief explanation of drawings]

1 to 5 show embodiments of the present invention,
Figure 1 is a block diagram of the transmitter, Figure 2 is a block diagram of the receiver, Figure 3 is a perspective view of the transmitter, Figure 4 is a table showing the relationship between operating modes and codes, and Figure 5 is the transmitter. Graphs showing the relationship between machine operation and concrete vibrator operating frequency, Figures 6 and 7
The figures show a conventional concrete vibrator, with FIG. 6 being an overall perspective view and FIG. 7 being a block diagram. 1... Vibrator power source, 2... Transmitter, 3
... Code converter, 4... Transmitter, 5... Receiver,
6...Inverter, 7...Decoder, 8...Receiving unit, S1 to S4...Push buttons.

Claims (1)

[Claim for Utility Model Registration] In a concrete vibrator in which the vibrator power source 1 is controlled by wireless control, the transmitter 2 has a plurality of push buttons S provided on its outer surface, and a button S assigned to each push button S. The receiver 5 includes a code converter 3 that converts the operation mode into a predetermined code, and a transmitter 4 that modulates a carrier with the code sent from the code converter 3 and transmits the modulated signal. a receiving section 8 for a band matching the frequency of , a decoder 7 for decoding the signal from this receiving section 8, and this decoder 7.
an inverter 6 for controlling the operating frequency of the vibrator power source 1 based on a signal from the
Depending on the designation of the operation mode assigned to each push button S, the vibrator power source 1 is started;
A concrete vibrator characterized by being configured such that stop and operating frequencies can be controlled arbitrarily.