JPS60150261U

JPS60150261U - Concrete vibrator compaction detection device

Info

Publication number: JPS60150261U
Application number: JP3805784U
Authority: JP
Inventors: 玉宮　弘; 相沢　実
Original assignee: 信濃電気株式会社; 大旭建機株式会社
Priority date: 1984-03-19
Filing date: 1984-03-19
Publication date: 1985-10-05

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図はバイブレータ装置の流入電流を推移を示す図、
第２図および第３図は本考案の一実施例回路図およびそ
の動作波形図、第４図は他の例を示す動作波形図、第５
図および第６図は本案の他の例を示す回路図および動作
波形図である。１・・・コンクリート・バイブレータ、１・・・駆ａｔ
源、２・・・駆動電源スィッチ、３・・・バイブレータ
装置、■・・・締固め検出回路、４・・・電流検出器、
５・・・増幅器、６・・・整流器、７・・・トリガパル
ス発生回路、８・・・時間設定回路、９・・・表示器、
１０・・・基準電流電源、１１・・・比較器。 −第２図Ｉ第４図　　− １ｍ　　　　　　　− （ｄ）ｌ　　　　ｉｉ。（ｅ）　　＋−□ヨ、。、ヨ畳７７．−げ）Figure 1 is a diagram showing the change in the inflow current of the vibrator device,
2 and 3 are a circuit diagram of one embodiment of the present invention and its operating waveform diagram, FIG. 4 is an operating waveform diagram showing another example, and FIG.
This figure and FIG. 6 are a circuit diagram and an operation waveform diagram showing another example of the present invention. 1... concrete vibrator, 1... drive at
source, 2... drive power switch, 3... vibrator device, ■... compaction detection circuit, 4... current detector,
5... Amplifier, 6... Rectifier, 7... Trigger pulse generation circuit, 8... Time setting circuit, 9... Display unit,
10... Reference current power supply, 11... Comparator. -Figure 2 I Figure 4 - 1m - (d)l ii. (e) +-□Yo. , 77. -ge)

Claims

[Scope of utility model registration request]

A detector for the current flowing into the concrete vibrator, a circuit that determines the starting reference point during this detected current, and a time that sets the time from the starting reference point to concrete compaction depending on the concrete mixing conditions, etc. A compaction detection device for a concrete vibrator, which includes a setting circuit and an indicator that is operated by the circuit to notify that compaction of concrete has been completed.