JPS61148570U - - Google Patents

Info

Publication number
JPS61148570U
JPS61148570U JP2981985U JP2981985U JPS61148570U JP S61148570 U JPS61148570 U JP S61148570U JP 2981985 U JP2981985 U JP 2981985U JP 2981985 U JP2981985 U JP 2981985U JP S61148570 U JPS61148570 U JP S61148570U
Authority
JP
Japan
Prior art keywords
battery
voltage drop
tightening
potential
light emitting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2981985U
Other languages
Japanese (ja)
Other versions
JPH0432224Y2 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1985029819U priority Critical patent/JPH0432224Y2/ja
Publication of JPS61148570U publication Critical patent/JPS61148570U/ja
Application granted granted Critical
Publication of JPH0432224Y2 publication Critical patent/JPH0432224Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Measurement Of Current Or Voltage (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案による警報器を設けたインパク
トレンチの要部断面図、第２図は本考案による警
報器を含むインパクトレンチの回路図、第３図は
本考案による警報器、締付トルク、発光ダイオー
ドの関係を表した動作図である。 １はハウジング、２はハンマケース、３はハン
ドル、４はスイツチ、５は電池、６は警報器、７
は比較器、８はツエナーダイオード、９は抵抗Ｒ
１、１０は抵抗Ｒ２、１１は抵抗Ｒ３、１２は抵
抗Ｒ４、１３は発光ダイオードである。 Figure 1 is a sectional view of the main parts of an impact wrench equipped with an alarm according to the present invention, Figure 2 is a circuit diagram of an impact wrench including an alarm according to the present invention, and Figure 3 is an alarm and tightening torque according to the present invention. , is an operation diagram showing the relationship between light emitting diodes. 1 is the housing, 2 is the hammer case, 3 is the handle, 4 is the switch, 5 is the battery, 6 is the alarm, 7
is a comparator, 8 is a Zener diode, 9 is a resistor R
1 and 10 are resistors R 2 , 11 is a resistor R 3 , 12 is a resistor R 4 , and 13 is a light emitting diode.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ボルト、ナツト等の締付工具であつて、かつ電
池を電源とするバツテリー締付工具において、電
池の放電間隔での電圧の低下を基準電位と電池電
位を比較する回路により検出し、発光ダイオード
等の表示手段により本体の締付トルクの低下を警
報することを特徴とする電圧低下警報器付バツテ
リー締付工具。 In battery tightening tools that use batteries as a power source to tighten bolts, nuts, etc., a voltage drop during the battery discharge interval is detected by a circuit that compares the reference potential with the battery potential, and a light emitting diode, etc. A battery tightening tool with a voltage drop alarm, characterized in that the display means warns of a decrease in the tightening torque of the main body.
JP1985029819U 1985-03-01 1985-03-01 Expired JPH0432224Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985029819U JPH0432224Y2 (en) 1985-03-01 1985-03-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985029819U JPH0432224Y2 (en) 1985-03-01 1985-03-01

Publications (2)

Publication Number Publication Date
JPS61148570U true JPS61148570U (en) 1986-09-12
JPH0432224Y2 JPH0432224Y2 (en) 1992-08-03

Family

ID=30528967

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985029819U Expired JPH0432224Y2 (en) 1985-03-01 1985-03-01

Country Status (1)

Country Link
JP (1) JPH0432224Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02284662A (en) * 1989-04-26 1990-11-22 Niyuudelta Kogyo Kk Backpack-type pest control machine
WO2006075524A1 (en) * 2005-01-12 2006-07-20 Max Co., Ltd. Chargeable electric power tool

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1257034B1 (en) 2001-05-09 2015-07-01 Makita Corporation Power tools
JP4920312B2 (en) * 2006-05-31 2012-04-18 株式会社マキタ Electric tool

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49142397U (en) * 1973-03-30 1974-12-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49142397U (en) * 1973-03-30 1974-12-07

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02284662A (en) * 1989-04-26 1990-11-22 Niyuudelta Kogyo Kk Backpack-type pest control machine
WO2006075524A1 (en) * 2005-01-12 2006-07-20 Max Co., Ltd. Chargeable electric power tool

Also Published As

Publication number Publication date
JPH0432224Y2 (en) 1992-08-03

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