EP0545112A1 - Ecran de protection pour machines à fraiser - Google Patents

Ecran de protection pour machines à fraiser Download PDF

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Publication number
EP0545112A1
EP0545112A1 EP92119341A EP92119341A EP0545112A1 EP 0545112 A1 EP0545112 A1 EP 0545112A1 EP 92119341 A EP92119341 A EP 92119341A EP 92119341 A EP92119341 A EP 92119341A EP 0545112 A1 EP0545112 A1 EP 0545112A1
Authority
EP
European Patent Office
Prior art keywords
milling machine
protective shield
machine according
base plate
arms
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
EP92119341A
Other languages
German (de)
English (en)
Other versions
EP0545112B1 (fr
Inventor
David M. Martinez
Wilson Wendell
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0545112A1 publication Critical patent/EP0545112A1/fr
Application granted granted Critical
Publication of EP0545112B1 publication Critical patent/EP0545112B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B27G21/00—Safety guards or devices specially designed for other wood-working machines auxiliary devices facilitating proper operation of said wood-working machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
    • B27C5/10—Portable hand-operated wood-milling machines; Routers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/30392—Milling with means to protect operative or machine [e.g., guard, safety device, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/306216—Randomly manipulated, work supported, or work following device
    • Y10T409/306552—Randomly manipulated
    • Y10T409/306608—End mill [e.g., router, etc.]

Definitions

  • the invention is based on a milling machine according to the preamble of claim 1.
  • Such milling in which the protective shield is firmly connected to the base plate, is known on the market. Since the protective shield blocks access to the milling tool, changing tools on these machines is very difficult.
  • the milling machine according to the invention with the characterizing features of claim 1 has the advantage that the passage between the motor housing and the base plate is possible unhindered without having to do without the chip deflector when working with the milling machine.
  • a fixation of the protective shield in two rotational positions is advantageously achieved with locking means which are attached as ribs and notches to the mutually facing surfaces of the arms and the pivot bearing.
  • Manufacturing in particular is simplified by the one-piece molding of elastically resilient arms on the deflecting surface.
  • a lever-shaped handle molded onto the protective shield simplifies operation.
  • the asymmetrical arrangement of the guide columns on the footplate makes it easier to see the milling tool from the more open side; therefore the protective shield is attached on this side.
  • Figure 1 shows a partially sectioned view of a milling machine
  • Figure 2 shows a view of its base plate
  • Figures 3 and 4 show a protective shield.
  • the router according to the invention consists of a two-part motor housing with a lower part 2 made of aluminum and an upper part 3 made of plastic. Two handles 4 are connected to the upper part 3, an electrical switch 5 being accommodated in one of the handles. The switch 5 is electrically connected to the power cord 6 and the drive motor 7.
  • the lower part 2 of the housing is equipped with vertically aligned guide tubes 9 which are guided on two guide columns 11 which also protrude vertically from a base plate 10.
  • a snap ring 8 is arranged in an annular groove, which prevents the motor housing from sliding off unintentionally 2, 3 prevented by the guide columns 11.
  • the foot plate 10 is equipped with a plastic sole 12 to protect the workpiece to be machined.
  • the base plate 10 and sole 12 have an opening 13 centrally into which a spindle 14 driven by the motor 7 projects.
  • the spindle 14 is equipped with a clamping sleeve 15 which can be clamped by means of a hexagon nut 16.
  • a turntable 19 with three adjustable screws 20 is attached as a stop for a rod 18 for milling depth adjustment.
  • the rod 18 is fixed by means of a locking screw 21 which is inserted into a screw thread in the lower part 2 of the motor housing.
  • a scale 22 is attached to the upper housing part 3 and an adjustable slide 23 made of plexiglass with a marking line is attached to the rod 18.
  • the axes of the guide columns 11 are both on the one hand a diagonal 24 through the center of the opening 13 (see Figure 2).
  • two pivot bearings 25 are attached or cast onto the base plate 10. These each consist of a disk-shaped attachment 26, which has an inwardly directed pivot pin 27 in the center. A straight rib 29 extends from the pivot pin 27 upward on the bearing surface 28 of the attachment 26.
  • a protective shield 30 made of plexiglass is rotatably mounted in the pivot bearings 25.
  • This consists of a transparent deflecting surface 31 which is slightly bulged outwards and two arms 32 which are integrally formed thereon on the side (see FIGS. 3 and 4).
  • the deflecting surface 31 is in its unfolded working position shown in FIG. 1 between the spindle 14 and the operator holding the milling cutter, in particular to protect their eyes.
  • the arms 32 lie in this position with their underside 33 on the base plate 10 and form a stop.
  • the arms At their ends facing away from the deflecting surface 31, the arms have bores 34 through which the pivots 27 reach through. Two straight notches 35 and 36 each extend away from the bores 34.
  • the notch 35 extends congruently with the rib 29 vertically upwards; the other notch 36 extends approximately at right angles to it in the direction of extension of the arm 32.
  • a handle 38 is formed on the deflecting surface 31.
  • the protective shield 30 can be rotated in the pivot bearings 25 and can be folded down from its upright working position shown in FIG. 1 into an assembly position in which the deflecting surface 31 runs approximately parallel to the base plate 10. In this position, a free passage between the base plate 10 and the motor housing 2, 3 through the clamping sleeve 15 and the hexagon nut 16 and on the milling tool from the - because of the asymmetrical arrangement of the guide columns 11 - more accessible side possible.
  • the protective shield 30 can be fixed both in the working and in the assembly position by the latching means 29, 35, 36. In the working position, the ribs 29 engage in the notch 35 and in the mounting position in the notch 36. The latching process is generated by a pretension between the two arms 32.
  • the protective shield is shown in a relaxed, non-assembled state in FIG. 3; the arms 32 protrude outwards. In the installed state, the arms 32 run parallel to one another.
  • the material of the protective shield 30 is permanently elastic.
  • the invention is not limited to the exemplary embodiment shown.
  • the pins 27 of the rotary bearings 25 and the bores 34 can be arranged on the other part; likewise the locking means 29, 35, 36.
  • the pins 27 of the rotary bearings 25 and the bores 34 can be arranged on the other part; likewise the locking means 29, 35, 36.
  • two, more or only one (correspondingly more powerfully designed) rotary bearing can be provided.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Milling Processes (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
  • Sawing (AREA)
EP92119341A 1991-11-28 1992-11-12 Ecran de protection pour machines à fraiser Expired - Lifetime EP0545112B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9114811U 1991-11-28
DE9114811U DE9114811U1 (de) 1991-11-28 1991-11-28 Fräsmaschine

Publications (2)

Publication Number Publication Date
EP0545112A1 true EP0545112A1 (fr) 1993-06-09
EP0545112B1 EP0545112B1 (fr) 1995-03-22

Family

ID=6873726

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92119341A Expired - Lifetime EP0545112B1 (fr) 1991-11-28 1992-11-12 Ecran de protection pour machines à fraiser

Country Status (3)

Country Link
US (1) US5308201A (fr)
EP (1) EP0545112B1 (fr)
DE (2) DE9114811U1 (fr)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5782151A (en) * 1995-08-07 1998-07-21 Kitagawa Iron Works Co., Ltd. Workpiece transfer apparatus
US5662440A (en) * 1996-08-08 1997-09-02 Ryobi North America Router attachment
US5988241A (en) * 1998-11-16 1999-11-23 Porter-Cable Corporation Ergonomic router handles
US5998897A (en) * 1998-11-16 1999-12-07 Porter-Cable Corporation Router chuck mounting system
US6079915A (en) * 1998-11-16 2000-06-27 Porter-Cable Corporation Plunge router depth stop system
US6139229A (en) * 1998-11-16 2000-10-31 Porter-Cable Corporation Plunge router fine depth adjustment system
US6113323A (en) * 1998-11-16 2000-09-05 Porter-Cable Corporation Plunge router sub-base alignment
US6065912A (en) * 1998-11-16 2000-05-23 Porter-Cable Corporation Router switching system
US6261036B1 (en) 1998-11-16 2001-07-17 Porter-Cable Corporation Plunge router locking system
US6488455B1 (en) 2000-07-28 2002-12-03 S-B Power Tool Company Plunge base router
US7467651B2 (en) * 2001-11-09 2008-12-23 Nomis Llc Tool attachment system and router attachment and method incorporating same
US6863480B1 (en) * 2002-08-06 2005-03-08 Porter-Cable Corporation Router plunge depth adjustment mechanism
US20060191597A1 (en) * 2002-10-15 2006-08-31 Black & Decker Inc. Handle assembly
US7073993B2 (en) * 2002-10-15 2006-07-11 Porter-Cable Corporation Switch assembly
US7334614B2 (en) * 2002-10-15 2008-02-26 Black & Decker Inc. Depth adjustment mechanism
US7334613B2 (en) * 2002-10-15 2008-02-26 Black & Decker Inc. Router base securing mechanism
US7451791B2 (en) 2002-10-15 2008-11-18 Black & Decker Inc. Handle assembly
US7316528B2 (en) 2002-10-15 2008-01-08 Black & Decker Inc. Ergonomic router assembly
US6986369B1 (en) 2002-11-12 2006-01-17 Porter-Cable Corporation Router height adjustment apparatus
EP1592528B1 (fr) * 2003-02-12 2009-08-26 Nomis, LLC Systeme d'attache d'outil, accessoire d'attache de defonceuse et procede comprenant ceux-ci
US20060102249A1 (en) * 2003-05-01 2006-05-18 Cooper Randy G Router with drive shaft lock mechanism
US7089979B2 (en) * 2003-05-01 2006-08-15 Black & Decker Inc. Ergonomic router
US7275900B1 (en) 2003-07-25 2007-10-02 Black & Decker Inc. Router elevating mechanism
DE10359420A1 (de) * 2003-12-18 2005-07-28 Robert Bosch Gmbh Handwerkzeugmaschine
JP4843254B2 (ja) * 2005-05-24 2011-12-21 日立工機株式会社 ルータ
GB0513856D0 (en) * 2005-07-07 2005-08-10 Black & Decker Inc Router
DE102006061235B4 (de) * 2006-12-22 2019-06-06 Robert Bosch Gmbh Oberfräse
DE102006061239A1 (de) * 2006-12-22 2008-06-26 Robert Bosch Gmbh Oberfräse
US9726469B2 (en) 2012-08-31 2017-08-08 Nomis Llc Turnlock small circle compass attachment
USD738178S1 (en) 2014-05-16 2015-09-08 Nomis Llc Tool adaptor plate
USD844469S1 (en) 2017-03-16 2019-04-02 Nomis Llc Circle compass

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2399707A (en) * 1944-12-01 1946-05-07 Salvatore D Amato Guard for router machines
US2750971A (en) * 1954-04-15 1956-06-19 Western Electric Co Guard for portable router
US2785716A (en) * 1955-07-06 1957-03-19 Walt Inc De Safety guard for rotary power tool
US3587387A (en) * 1967-03-08 1971-06-28 Stanley Works Router
US3786846A (en) * 1972-10-17 1974-01-22 Danley Machine Corp Shield assembly for router
US3791260A (en) * 1972-02-17 1974-02-12 Stanley Works Router
FR2435323A3 (fr) * 1978-09-06 1980-04-04 Bosch Gmbh Robert Dispositif de protection pour machine-outil notamment pour fraiseuse
DE3303734A1 (de) * 1983-02-04 1984-08-16 Kress-elektrik GmbH & Co, Elektromotorenfabrik, 7457 Bisingen Oberfraese, insbesondere elektrohandoberfraese

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1148397A (en) * 1915-07-27 John W Nelson Sight-glass for routing-machines.
DE923459C (de) * 1951-04-27 1955-02-14 Roman Schuster Kantenverputz- und Profilierapparat mit Elektromotor-Antrieb
US2898956A (en) * 1957-10-24 1959-08-11 Warren B Zern Brake for electric hand tool
US3212541A (en) * 1963-02-19 1965-10-19 Stanley Works Cutting guide
US4640324A (en) * 1985-09-12 1987-02-03 Lounds Bernard C Router attachment
US4674548A (en) * 1985-12-26 1987-06-23 The Boeing Company Adjustable router

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2399707A (en) * 1944-12-01 1946-05-07 Salvatore D Amato Guard for router machines
US2750971A (en) * 1954-04-15 1956-06-19 Western Electric Co Guard for portable router
US2785716A (en) * 1955-07-06 1957-03-19 Walt Inc De Safety guard for rotary power tool
US3587387A (en) * 1967-03-08 1971-06-28 Stanley Works Router
US3791260A (en) * 1972-02-17 1974-02-12 Stanley Works Router
US3786846A (en) * 1972-10-17 1974-01-22 Danley Machine Corp Shield assembly for router
FR2435323A3 (fr) * 1978-09-06 1980-04-04 Bosch Gmbh Robert Dispositif de protection pour machine-outil notamment pour fraiseuse
DE3303734A1 (de) * 1983-02-04 1984-08-16 Kress-elektrik GmbH & Co, Elektromotorenfabrik, 7457 Bisingen Oberfraese, insbesondere elektrohandoberfraese

Also Published As

Publication number Publication date
DE59201722D1 (de) 1995-04-27
DE9114811U1 (de) 1993-04-01
EP0545112B1 (fr) 1995-03-22
US5308201A (en) 1994-05-03

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