EP2062699A3 - Motor-driven hand-held circular saw with rotatable protective hood - Google Patents
Motor-driven hand-held circular saw with rotatable protective hood Download PDFInfo
- Publication number
- EP2062699A3 EP2062699A3 EP08013500A EP08013500A EP2062699A3 EP 2062699 A3 EP2062699 A3 EP 2062699A3 EP 08013500 A EP08013500 A EP 08013500A EP 08013500 A EP08013500 A EP 08013500A EP 2062699 A3 EP2062699 A3 EP 2062699A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- saw blade
- circular saw
- protective hood
- saw
- motor
- 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
- 230000001681 protective effect Effects 0.000 title abstract 5
- 238000003754 machining Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
- B27G19/02—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws
- B27G19/04—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws for manually-operated power-driven circular saws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/29—Details; Component parts; Accessories
- B27B5/38—Devices for braking the circular saw blade or the saw spindle; Devices for damping vibrations of the circular saw blade, e.g. silencing
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Sawing (AREA)
Abstract
Die Erfindung betrifft eine motorisch angetriebene Handkreissäge (2) mit einem Maschinengehäuse (4) und einer demgegenüber ortsfest und drehbar gelagerten Antriebsspindel (6), bezüglich derer ein Sägeblatt (8) drehfest montierbar ist, wobei das Sägeblatt (8) über eine Auflagefläche (10) der Handkreissäge um die Bearbeitungstiefe vorsteht, und mit einer Schutzhaube (12) für das Sägeblatt (8), die an dem Maschinengehäuse (4) angelenkt und in der Ebene des Sägeblatts (8) oder einer hierzu parallelen Ebene verdrehbar ist und das Sägeblatt (8) radial außen überfängt, wobei die Schutzhaube (12) in Richtung auf eine Endstellung federvorgespannt ist und in dieser Endstellung zumindest den über die Auflagefläche der Handkreissäge vorstehenden Teil des Sägeblatts überfängt; um die Bedienbarkeit zu verbessern ist die Handkreissäge gekennzeichnet durch eine die Schutzhaube (12) in ihrer anderen Endstellung entgegen der Federvorspannung haltende Arretiereinrichtung (16), die zudem und gleichzeitig in eine Sperrstellung mit der Antriebsspindel (6) bringbar ist, und dadurch dass die Schutzhaube (12) einen in ihrer Umfangs/Drehrichtung (18) hintergreifbaren Abschnitt (20) aufweist, mit dem ein Sperrorgan (22) der Arretiereinrichtung (16) verriegelnd zusammenwirkt. The invention relates to a motor-driven circular saw (2) with a machine housing (4) and a fixedly mounted and rotatably mounted drive spindle (6), with respect to which a saw blade (8) is rotatably mounted, wherein the saw blade (8) via a bearing surface (10 ) of the circular saw projecting to the machining depth, and with a protective cover (12) for the saw blade (8) which is articulated on the machine housing (4) and in the plane of the saw blade (8) or a plane parallel thereto rotatable and the saw blade ( 8) overhanging radially on the outside, the protective hood (12) being spring-biased in the direction of an end position and, in this end position, overhanging at least the part of the saw blade protruding beyond the contact surface of the circular saw; To improve the operability of the circular saw is characterized by the protective hood (12) in its other end position against the spring bias holding locking device (16), which also and simultaneously in a locking position with the drive spindle (6) can be brought, and thereby that the protective hood (12) has in its scope / rotational direction (18) engage behind section (20), with which a locking member (22) of the locking device (16) cooperating locking.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710055650 DE102007055650B3 (en) | 2007-11-21 | 2007-11-21 | Motor-driven circular saw with rotatable protective cover |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2062699A2 EP2062699A2 (en) | 2009-05-27 |
EP2062699A3 true EP2062699A3 (en) | 2010-03-31 |
EP2062699B1 EP2062699B1 (en) | 2011-03-30 |
Family
ID=40352206
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20080013500 Active EP2062699B1 (en) | 2007-11-21 | 2008-07-26 | Motor-driven hand-held circular saw with rotatable protective hood |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2062699B1 (en) |
DE (2) | DE102007055650B3 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009036797A1 (en) * | 2009-08-08 | 2011-02-10 | Metabowerke Gmbh | Motor-driven circular saw |
CN105235017B (en) * | 2015-10-29 | 2017-08-15 | 河南理工大学 | A kind of electric saw emergency braking control device |
JP6857536B2 (en) * | 2017-04-06 | 2021-04-14 | 株式会社やまびこ | Portable cutting machine |
CN207189852U (en) | 2017-06-05 | 2018-04-06 | 米沃奇电动工具公司 | Bench saw |
JP7299111B2 (en) * | 2019-09-03 | 2023-06-27 | 株式会社マキタ | portable cutting machine |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3177909A (en) * | 1962-07-27 | 1965-04-13 | Robert A Laube | Saw blade guard lock |
US4402241A (en) * | 1981-08-10 | 1983-09-06 | Black & Decker Inc. | Spindle locking means for power operated tool |
DE3500372A1 (en) * | 1985-01-08 | 1986-07-10 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Element for locking the drive spindle for the saw blade of a portable circular saw |
DE3633655A1 (en) * | 1986-10-03 | 1988-04-14 | Black & Decker Inc | Portable circular saw |
US5075976A (en) * | 1991-02-05 | 1991-12-31 | Young Peter W | Power tool guard retainer |
DE4130174A1 (en) * | 1991-09-11 | 1993-03-25 | Metabowerke Kg | Circular saw with pivoted motor housing on baseplate - has locking lever, actuated to release locking device for downward movement of motor housing |
EP1193036A2 (en) * | 2000-09-30 | 2002-04-03 | Festool GmbH | Hand machine tool with tool shaft locking device |
EP1967310A1 (en) * | 2007-03-07 | 2008-09-10 | Mafell AG | Hand-held circular saw |
EP2045055A2 (en) * | 2007-10-04 | 2009-04-08 | Black & Decker, Inc. | A power tool |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5782001A (en) * | 1996-08-27 | 1998-07-21 | Gray; John W. | Circular saw guard hold and release device |
-
2007
- 2007-11-21 DE DE200710055650 patent/DE102007055650B3/en active Active
-
2008
- 2008-07-26 DE DE200850003001 patent/DE502008003001D1/en active Active
- 2008-07-26 EP EP20080013500 patent/EP2062699B1/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3177909A (en) * | 1962-07-27 | 1965-04-13 | Robert A Laube | Saw blade guard lock |
US4402241A (en) * | 1981-08-10 | 1983-09-06 | Black & Decker Inc. | Spindle locking means for power operated tool |
DE3500372A1 (en) * | 1985-01-08 | 1986-07-10 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Element for locking the drive spindle for the saw blade of a portable circular saw |
DE3633655A1 (en) * | 1986-10-03 | 1988-04-14 | Black & Decker Inc | Portable circular saw |
US5075976A (en) * | 1991-02-05 | 1991-12-31 | Young Peter W | Power tool guard retainer |
DE4130174A1 (en) * | 1991-09-11 | 1993-03-25 | Metabowerke Kg | Circular saw with pivoted motor housing on baseplate - has locking lever, actuated to release locking device for downward movement of motor housing |
EP1193036A2 (en) * | 2000-09-30 | 2002-04-03 | Festool GmbH | Hand machine tool with tool shaft locking device |
EP1967310A1 (en) * | 2007-03-07 | 2008-09-10 | Mafell AG | Hand-held circular saw |
EP2045055A2 (en) * | 2007-10-04 | 2009-04-08 | Black & Decker, Inc. | A power tool |
Also Published As
Publication number | Publication date |
---|---|
EP2062699B1 (en) | 2011-03-30 |
DE102007055650B3 (en) | 2009-04-16 |
EP2062699A2 (en) | 2009-05-27 |
DE502008003001D1 (en) | 2011-05-12 |
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