FR2454864A1 - ELECTRIC HAND DRILL HAVING A DEVICE FOR GOING BETWEEN DRILLING BY ROTATION TO DRILLING BY PERCUSSION - Google Patents
ELECTRIC HAND DRILL HAVING A DEVICE FOR GOING BETWEEN DRILLING BY ROTATION TO DRILLING BY PERCUSSIONInfo
- 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
- France
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/06—Hammer pistons; Anvils ; Guide-sleeves for pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable 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
- B25D16/006—Mode 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).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792916499 DE2916499A1 (en) | 1979-04-24 | 1979-04-24 | ELECTRIC HAND DRILLING MACHINE WITH DEVICE FOR ADJUSTMENT FOR ROTATING OR IMPACTING DRILLING |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2454864A1 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 Granted FR2454864A1 (en) | 1979-04-24 | 1980-04-09 | ELECTRIC HAND DRILL HAVING A DEVICE FOR GOING BETWEEN DRILLING BY ROTATION TO DRILLING BY PERCUSSION |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH642580A5 (en) |
DE (1) | DE2916499A1 (en) |
FR (1) | FR2454864A1 (en) |
NL (1) | NL8002132A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2508370A1 (en) * | 1981-06-29 | 1982-12-31 | Hilti Ag | PERFORATOR HAMMER WITH TOOL HOLDER |
EP0108411A1 (en) * | 1982-11-10 | 1984-05-16 | Eugen Lutz GmbH & Co. Maschinenfabrik | Drilling machine |
EP1815947A2 (en) * | 1999-04-30 | 2007-08-08 | BLACK & DECKER INC. | Rotary hammer |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3511491A1 (en) * | 1985-03-29 | 1986-10-09 | Robert Bosch Gmbh, 7000 Stuttgart | Hammer drill |
DE19528924B4 (en) * | 1995-08-05 | 2005-01-27 | Scintilla Ag | Electric hammer drill |
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 |
DE102007056531A1 (en) | 2007-11-23 | 2009-05-28 | Hilti Aktiengesellschaft | Hand tool machine with impact tool holder and associated tool |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH356396A (en) * | 1960-07-13 | 1961-08-15 | Duss Friedrich Fa | Device on an electric hand drill to optionally change the latter for rotary drilling and percussion drilling |
FR1579134A (en) * | 1967-07-31 | 1969-08-22 | ||
DE1652685A1 (en) * | 1968-02-08 | 1970-12-10 | Hilti Ag | Switching device for electro-pneumatic hammer drills |
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 |
-
1979
- 1979-04-24 DE DE19792916499 patent/DE2916499A1/en active Granted
-
1980
- 1980-03-31 CH CH251280A patent/CH642580A5/en not_active IP Right Cessation
- 1980-04-09 FR FR8007967A patent/FR2454864A1/en active Granted
- 1980-04-11 NL NL8002132A patent/NL8002132A/en not_active Application Discontinuation
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH356396A (en) * | 1960-07-13 | 1961-08-15 | Duss Friedrich Fa | Device on an electric hand drill to optionally change the latter for rotary drilling and percussion drilling |
FR1579134A (en) * | 1967-07-31 | 1969-08-22 | ||
DE1652685A1 (en) * | 1968-02-08 | 1970-12-10 | Hilti Ag | Switching device for electro-pneumatic hammer drills |
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2508370A1 (en) * | 1981-06-29 | 1982-12-31 | Hilti Ag | PERFORATOR HAMMER WITH TOOL HOLDER |
EP0108411A1 (en) * | 1982-11-10 | 1984-05-16 | Eugen Lutz GmbH & 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 & DECKER INC. | Rotary hammer |
EP1815947A3 (en) * | 1999-04-30 | 2013-03-06 | Black & Decker Inc. | Rotary hammer |
Also Published As
Publication number | Publication date |
---|---|
CH642580A5 (en) | 1984-04-30 |
DE2916499C2 (en) | 1989-02-16 |
NL8002132A (en) | 1980-10-28 |
FR2454864B1 (en) | 1983-04-01 |
DE2916499A1 (en) | 1980-11-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |