FR2454864A1 - Drill Electric Hand with a device to switch at will from drilling by rotating the drilling percussion - Google Patents

Drill Electric Hand with a device to switch at will from drilling by rotating the drilling percussion

Info

Publication number
FR2454864A1
FR2454864A1 FR8007967A FR8007967A FR2454864A1 FR 2454864 A1 FR2454864 A1 FR 2454864A1 FR 8007967 A FR8007967 A FR 8007967A FR 8007967 A FR8007967 A FR 8007967A FR 2454864 A1 FR2454864 A1 FR 2454864A1
Authority
FR
Grant status
Application
Patent type
Prior art keywords
drilling
locking
percussion
bar element
percussive
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
FR8007967A
Other languages
French (fr)
Other versions
FR2454864B1 (en )
Inventor
Jakob Holzapfel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Duss Maschinenfabrik Co F GmbH
DUSS MASCHF
Original Assignee
DUSS MASCHINENFABRIK GMBH CO F
DUSS MASCHF
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

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D17/00Details of, or accessories for, portable power-driven percussive tools
    • B25D17/06Hammer pistons; Anvils ; Guide-sleeves for pistons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D16/00Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • B25D16/006Mode changers; Mechanisms connected thereto

Abstract

The electric hand drill is specifically suitable for making drill-holes in multilayered wall, floor or ceiling structures, the layers of which are of differing material consistency and hardness and therefore require partly rotary drilling, partly percussive drilling. In such cases it is important to switch over at the correct time and with quick response from rotary drilling to percussive drilling. The switching-over is effected by a locking-bar element (30, 30a), which can be actuated by a finger of the hand otherwise firmly gripping around the handle. In the locking position, the locking-bar element locks the tool (27) indirectly or directly in an axial position in which it lies outside the percussion range of the axially percussive percussion member (15b), that is to say it just drills. The locking-bar element (30, 30a) can be guided out of its locking position by a movement running transversely with respect to the drilling axis (a-a). <IMAGE>
FR8007967A 1979-04-24 1980-04-09 Expired FR2454864B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792916499 DE2916499C2 (en) 1979-04-24 1979-04-24

Publications (2)

Publication Number Publication Date
FR2454864A1 true true FR2454864A1 (en) 1980-11-21
FR2454864B1 FR2454864B1 (en) 1983-04-01

Family

ID=6069101

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8007967A Expired FR2454864B1 (en) 1979-04-24 1980-04-09

Country Status (3)

Country Link
DE (1) DE2916499C2 (en)
FR (1) FR2454864B1 (en)
NL (1) NL8002132A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2508370A1 (en) * 1981-06-29 1982-12-31 Hilti Ag hammer with tool
EP0108411A1 (en) * 1982-11-10 1984-05-16 Eugen Lutz GmbH &amp; Co. Maschinenfabrik Drilling machine
EP1815947A2 (en) * 1999-04-30 2007-08-08 BLACK &amp; DECKER INC. Rotary hammer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3511491C2 (en) * 1985-03-29 1993-09-09 Robert Bosch Gmbh, 70469 Stuttgart, De
DE10122820A1 (en) * 2001-05-11 2002-11-21 Bosch Gmbh Robert Hand tool, especially hammer drill and/or hammer chisel, has tool guide element that is axially movable with respect to machine housing

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1579134A (en) * 1967-07-31 1969-08-22
DE1652685A1 (en) * 1968-02-08 1970-12-10 Hilti Ag Switching for electro-pneumatic Hammers
FR2069426A5 (en) * 1969-11-15 1971-09-03 Bosch
FR2146732A5 (en) * 1971-07-21 1973-03-02 Hilti Ag
FR2166946A5 (en) * 1971-12-28 1973-08-17 Impex Essen Vertrieb
FR2197679A1 (en) * 1972-08-30 1974-03-29 Skil Nederland Nv
FR2218973A1 (en) * 1973-02-23 1974-09-20 Skil Nederland Nv

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1579134A (en) * 1967-07-31 1969-08-22
DE1652685A1 (en) * 1968-02-08 1970-12-10 Hilti Ag Switching for electro-pneumatic Hammers
FR2069426A5 (en) * 1969-11-15 1971-09-03 Bosch
FR2146732A5 (en) * 1971-07-21 1973-03-02 Hilti Ag
FR2166946A5 (en) * 1971-12-28 1973-08-17 Impex Essen Vertrieb
FR2197679A1 (en) * 1972-08-30 1974-03-29 Skil Nederland Nv
FR2218973A1 (en) * 1973-02-23 1974-09-20 Skil Nederland Nv

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2508370A1 (en) * 1981-06-29 1982-12-31 Hilti Ag hammer with tool
EP0108411A1 (en) * 1982-11-10 1984-05-16 Eugen Lutz GmbH &amp; Co. Maschinenfabrik Drilling machine
US4585077A (en) * 1982-11-10 1986-04-29 Black & Decker Overseas Ag Drilling mechanism optionally usable as a rotary drill or a hammer drill
EP1815947A2 (en) * 1999-04-30 2007-08-08 BLACK &amp; DECKER INC. Rotary hammer
EP1815947A3 (en) * 1999-04-30 2013-03-06 Black & Decker Inc. Rotary hammer

Also Published As

Publication number Publication date Type
FR2454864B1 (en) 1983-04-01 grant
DE2916499C2 (en) 1989-02-16 grant
DE2916499A1 (en) 1980-11-06 application
NL8002132A (en) 1980-10-28 application

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Legal Events

Date Code Title Description
ST Notification of lapse