JPS5884877U - Dry-driving prevention mechanism for hammer drills, etc. - Google Patents

Dry-driving prevention mechanism for hammer drills, etc.

Info

Publication number
JPS5884877U
JPS5884877U JP17993181U JP17993181U JPS5884877U JP S5884877 U JPS5884877 U JP S5884877U JP 17993181 U JP17993181 U JP 17993181U JP 17993181 U JP17993181 U JP 17993181U JP S5884877 U JPS5884877 U JP S5884877U
Authority
JP
Japan
Prior art keywords
hammer
dry
prevention mechanism
driving prevention
hammer drills
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
JP17993181U
Other languages
Japanese (ja)
Other versions
JPS6029434Y2 (en
Inventor
出張 友重
Original Assignee
リョービ株式会社
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 by リョービ株式会社 filed Critical リョービ株式会社
Priority to JP17993181U priority Critical patent/JPS6029434Y2/en
Publication of JPS5884877U publication Critical patent/JPS5884877U/en
Application granted granted Critical
Publication of JPS6029434Y2 publication Critical patent/JPS6029434Y2/en
Expired legal-status Critical Current

Links

Landscapes

  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)

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

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

第1図は本考案に係る空打防止機構を備えたハンマード
リルの一部縦断側面図、第2図は同機構においてハンマ
ーが最前進限で停止保持された状態を示す縦断側面図、
第3図は同機構における要部の拡大断面図である。 1・・・ピストン、2・・・シリンダー、3・・・ハン
マー、3a・・・凹部、7・・・孔、8・・・ストッパ
ーボール、9°°°バネ。
FIG. 1 is a partial vertical side view of a hammer drill equipped with a dry-strike prevention mechanism according to the present invention, and FIG. 2 is a vertical side view of the same mechanism showing a state in which the hammer is stopped and held at its maximum forward limit.
FIG. 3 is an enlarged sectional view of the main parts of the mechanism. 1... Piston, 2... Cylinder, 3... Hammer, 3a... Recess, 7... Hole, 8... Stopper ball, 9°°° spring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ピストン1による圧縮空気によってハンマー3を往復動
作し、工具に打撃力を発生させるようにしたハンマード
リル等の空打防止機構であって、シリンダー2の適所に
孔7を設けてストッパーボール8をバネ9により中心方
向へ弾撥付勢して配設し、無負荷による前進時ハンマー
を、その外周に設けた凹部3aと上記ストッパーボール
が係嵌して前進限に停止するよう構成したことを特徴と
したハンマードリル等の空打防止機構。
This is a dry striking prevention mechanism for hammer drills, etc., in which a hammer 3 is reciprocated by compressed air from a piston 1 to generate a striking force on a tool. 9, the hammer is elastically biased toward the center, and when the hammer moves forward without a load, the stopper ball engages with the recess 3a provided on the outer periphery of the hammer, and the hammer stops at the forward limit. Dry-driving prevention mechanism for hammer drills, etc.
JP17993181U 1981-12-01 1981-12-01 Dry-driving prevention mechanism for hammer drills, etc. Expired JPS6029434Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17993181U JPS6029434Y2 (en) 1981-12-01 1981-12-01 Dry-driving prevention mechanism for hammer drills, etc.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17993181U JPS6029434Y2 (en) 1981-12-01 1981-12-01 Dry-driving prevention mechanism for hammer drills, etc.

Publications (2)

Publication Number Publication Date
JPS5884877U true JPS5884877U (en) 1983-06-08
JPS6029434Y2 JPS6029434Y2 (en) 1985-09-05

Family

ID=29976074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17993181U Expired JPS6029434Y2 (en) 1981-12-01 1981-12-01 Dry-driving prevention mechanism for hammer drills, etc.

Country Status (1)

Country Link
JP (1) JPS6029434Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019181683A (en) * 2018-04-11 2019-10-24 株式会社マキタ Impact tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019181683A (en) * 2018-04-11 2019-10-24 株式会社マキタ Impact tool

Also Published As

Publication number Publication date
JPS6029434Y2 (en) 1985-09-05

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