JPH0239805U - - Google Patents

Info

Publication number
JPH0239805U
JPH0239805U JP11620488U JP11620488U JPH0239805U JP H0239805 U JPH0239805 U JP H0239805U JP 11620488 U JP11620488 U JP 11620488U JP 11620488 U JP11620488 U JP 11620488U JP H0239805 U JPH0239805 U JP H0239805U
Authority
JP
Japan
Prior art keywords
intermediate shaft
reciprocating bearing
rotation
coil spring
switching device
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
JP11620488U
Other languages
Japanese (ja)
Other versions
JPH0645285Y2 (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 JP11620488U priority Critical patent/JPH0645285Y2/en
Publication of JPH0239805U publication Critical patent/JPH0239805U/ja
Application granted granted Critical
Publication of JPH0645285Y2 publication Critical patent/JPH0645285Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Drilling And Boring (AREA)

Description

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

第１図は本考案になる電気ハンマドリルの回転
＋打撃、回転のみの切換装置の一実施例を示す縦
断面図である。第１図において１はＡｒピニオン
、２はフアーストギヤ、３は中間軸、４はレシプ
ロベアリング、５はコイルスプリング、６はチエ
ンジレバー、７はシリンダ、８はピストンピン、
９はピストン、１０は打撃子、１１は中間子、１
２は工具、１３は空気室、１４はつめである。 FIG. 1 is a longitudinal sectional view showing an embodiment of a switching device for rotation + impact and rotation only for an electric hammer drill according to the present invention. In Fig. 1, 1 is an Ar pinion, 2 is a first gear, 3 is an intermediate shaft, 4 is a reciprocating bearing, 5 is a coil spring, 6 is a chain lever, 7 is a cylinder, 8 is a piston pin,
9 is a piston, 10 is a striker, 11 is an intermediate element, 1
2 is a tool, 13 is an air chamber, and 14 is a pawl.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] モータの回転をギヤを介して中間軸に伝達し該
中間軸上に回転可能に遊合しピストンを往復駆動
するレシプロベアリングに外部操作により選択的
に前記モータの回転を伝達する電気ハンマドリル
の動作モード切換装置において前記中間軸とレシ
プロベアリング軸間に前記中間軸の回転方向と同
方向に巻かれたコイルスプリングを締代をもつて
巻き付け該コイルスプリングの一端は前記レシプ
ロベアリング軸に固定し、一端はつめを形成しハ
ウジング外部操作部と選択的に係合するようにし
たことを特徴とする電気ハンマドリルの動作モー
ド切換装置。 An operating mode of an electric hammer drill in which the rotation of the motor is transmitted to an intermediate shaft via a gear, and the rotation of the motor is selectively transmitted by external operation to a reciprocating bearing rotatably engaged on the intermediate shaft and reciprocatingly driving a piston. In the switching device, a coil spring wound in the same direction as the rotational direction of the intermediate shaft is wound between the intermediate shaft and the reciprocating bearing shaft with an interference, one end of the coil spring is fixed to the reciprocating bearing shaft, 1. An operation mode switching device for an electric hammer drill, characterized in that a pawl is formed to selectively engage with an external operating portion of a housing.
JP11620488U 1988-09-02 1988-09-02 Operation mode switching device for electric hammer drill Expired - Lifetime JPH0645285Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11620488U JPH0645285Y2 (en) 1988-09-02 1988-09-02 Operation mode switching device for electric hammer drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11620488U JPH0645285Y2 (en) 1988-09-02 1988-09-02 Operation mode switching device for electric hammer drill

Publications (2)

Publication Number Publication Date
JPH0239805U true JPH0239805U (en) 1990-03-16
JPH0645285Y2 JPH0645285Y2 (en) 1994-11-24

Family

ID=31358528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11620488U Expired - Lifetime JPH0645285Y2 (en) 1988-09-02 1988-09-02 Operation mode switching device for electric hammer drill

Country Status (1)

Country Link
JP (1) JPH0645285Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04125509U (en) * 1991-05-09 1992-11-16 リヨービ株式会社 hammer drill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04125509U (en) * 1991-05-09 1992-11-16 リヨービ株式会社 hammer drill

Also Published As

Publication number Publication date
JPH0645285Y2 (en) 1994-11-24

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