EP2572846A1 - Schutzabdeckung für eine verbundstoff-schrägkantensäge - Google Patents

Schutzabdeckung für eine verbundstoff-schrägkantensäge Download PDF

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Publication number
EP2572846A1
EP2572846A1 EP11814020A EP11814020A EP2572846A1 EP 2572846 A1 EP2572846 A1 EP 2572846A1 EP 11814020 A EP11814020 A EP 11814020A EP 11814020 A EP11814020 A EP 11814020A EP 2572846 A1 EP2572846 A1 EP 2572846A1
Authority
EP
European Patent Office
Prior art keywords
protective cover
auxiliary
cut type
chamfer cut
composite saw
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.)
Withdrawn
Application number
EP11814020A
Other languages
English (en)
French (fr)
Other versions
EP2572846A4 (de
Inventor
Mingcan Yu
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.)
Zhejiang Sata Tools Manufacture Co Ltd
Original Assignee
Zhejiang Sata Tools Manufacture Co Ltd
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 Zhejiang Sata Tools Manufacture Co Ltd filed Critical Zhejiang Sata Tools Manufacture Co Ltd
Publication of EP2572846A1 publication Critical patent/EP2572846A1/de
Publication of EP2572846A4 publication Critical patent/EP2572846A4/de
Withdrawn legal-status Critical Current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
    • 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
    • B27G19/025—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for circular saws with guards for tool

Definitions

  • the present disclosure relates to composite saws, and in particular to a chamfer cut type protective cover for a composite saw.
  • the conventional composite saw is provided with a protective cover on the chamfer cut type saw blade.
  • the protective cover encases the saw blade for protection when the frame is lifted up, and exposes the saw blade to work when the frame is pressed down.
  • It has the following disadvantages: when the composite saw is changed from the chamfer cut mode into the table cut mode, the frame is pressed down and the chamfer cut type protective cover is closed; this means that, in the table cut mode, the saw blade on the chamfer cut type working surface below is exposed on the lower surface of a panel component and may easily hurt the user.
  • Another disadvantage concerns mobile protection; that is to say, in cases where no workpiece exists, the protective cover lifts up to expose the saw blade as long as the frame is pressed down, which causes a safety issue. Thus, it is necessary to improve such protective covers.
  • the present disclosure provides a chamfer cut type protective cover for a composite saw.
  • the protective cover has a simple structure and low cost; in any state and in cases where the composite saw is switched into the table cut mode, the lower half part of the saw blade is prevented from being exposed to the outside; the chamfer cut type protective cover starts to work with the input of a workpiece; the chamfer cut type protective cover is a follower and is more reliable at work, and thus the composite saw is safer in use.
  • a chamfer cut type protective cover for a composite saw comprising a front protective cover, an auxiliary protective cover and a rear protective cover, wherein the outer ends of the front protective cover and the rear protective cover are respectively provided with connecting parts for connecting to a frame; the front end of the auxiliary protective cover is connected to the front protective cover, and the rear end of the auxiliary protective cover is connected to the rear protective cover.
  • the auxiliary protective cover comprises a left protective cover plate and a right protective cover plate.
  • the left and right protective cover plates are joined together to form the auxiliary protective cover.
  • the rear end of the left protective cover plate is hinged to the front end of the rear protective cover; the front end of the left protective cover plate is provided with a guiding slot; the rear end of the front protective cover is provided with a guiding column; and the guiding column is inserted in the guiding slot.
  • the rear end of the left protective cover plate is provided with an auxiliary limiting slot; the front end of the rear protective cover is provided with an auxiliary limiting column; and the auxiliary limiting column is inserted into the auxiliary limiting slot.
  • the chamfer cut type protective cover features a simple structure and low manufacturing cost; in any state and in cases where the composite saw is switched into the table cut mode, the lower half of the saw blade is prevented from being exposed to the outside; the chamfer cut type protective cover starts to work with the input of a workpiece; the chamfer cut type protective cover is a follower and is more reliable at work. Thus, the composite saw is safer in use.
  • the chamfer cut type protective cover of the present invention can also be applied to the common chamfer cutting machine as well as the pull rod type chamfer cutting machine.
  • Figure 1 is a diagram showing the structure of an embodiment of the present invention.
  • Figure 2 is another diagram showing the embodiment from another angle of view.
  • Figure 3 is a schematic diagram showing view I of an embodiment when is use.
  • Figure 4 is another schematic diagram showing view II of the embodiment when in use.
  • panel component 1 frame 2, saw blade 3, chamfer cut type protective cover 4, rear protective cover 5, auxiliary protective cover 6, front protective cover 7, guiding slot 8, guiding column 9, auxiliary limiting slot 10, auxiliary limiting column 11, limiting slot 12, base 13, left protective cover plate 61, right protective cover plate 62.
  • a chamfer cut type protective cover for a composite saw comprises a front protective cover 7, an auxiliary protective cover 6 and a rear protective cover 5.
  • the outer ends of the front protective cover 7 and the rear protective cover 5 are respectively provided with connecting parts for connecting to a frame.
  • the front end of the auxiliary protective cover 6 is connected to the front protective cover 7, and the rear end of the auxiliary protective cover 6 is connected to the rear protective cover 5.
  • the auxiliary protective cover 6 comprises a left protective cover plate 61 and a right protective cover plate 62.
  • the left and right protective cover plates 61, 62 are joined together to form the auxiliary protective cover 6.
  • the rear end of the left protective cover plate 61 is hinged to the front end of the rear protective cover 5; the front end of the left protective cover plate 61 is provided with a guiding slot 8; the rear end of the front protective cover 7 is provided with a guiding column 9; and the guiding column 8 is inserted in the guiding slot 9.
  • the rear end of the left protective cover plate 61 is provided with an auxiliary limiting slot 10; the front end of the rear protective cover 5 is provided with an auxiliary limiting column 11; and the auxiliary limiting column 11 is inserted into the auxiliary limiting slot 10.
  • the auxiliary limiting column 11 and the auxiliary limiting slot 10 are used for further limiting the motion trajectory of the auxiliary protective cover 6.
  • the auxiliary protective cover 6 can be pushed by a workpiece to move up and down, and the saw blade seam may be provided at the middle position of the auxiliary protective cover 6.
  • the protective cover 6 moves upward when the workpiece is pressed against the auxiliary protective cover 6, and then the saw blade 3 is exposed from the saw blade seam of the auxiliary protective cover 6 to perform cutting.
  • the front protective cover 7, the auxiliary protective cover 6 and the rear protective cover 5 are automatically by means of gravity and a torsional spring.
  • the outer ends of the front protective cover 7 and the rear protective cover 5 are respectively hinged to the frame 2.
  • the front protective cover 7 and the rear protective cover 5 can each rotate with respect to the frame 2 by a certain angle to facilitate the auxiliary protective cover 6 to move up and down more smoothly; thus the reliability of the auxiliary protective cover 6 is increased.
  • the front protective cover 7 and the rear protective cover 5 are respectively provided with a limiting slot 12; the frame 2 is provided with a left limiting column and a right limiting column; the left limiting column is inserted into the limiting slot 12 of the front protective cover 7, while the right limiting column is inserted into the limiting slot 12 of the rear protective over 5.
  • the limiting slots 12 of the front protective cover 7 and the rear protective cover 5 are designed for limiting the motion trajectories of the front protective cover 7 and the rear protective cover 5 respectively, thus further improving the smoothness of the up/down movement of the auxiliary protective cover 6 and further increasing the reliability of the auxiliary protective cover 6.
  • a composite saw installed with a chamfer cut type protective cover comprises a base 13, a panel component 1, a frame 2 and a saw blade 3, wherein the frame 2 is fixed on or hinged to the base 13; the panel component 1 is fixed on the frame 2; the saw blade 3 is fixed on the fame 2 through a bearing block; and the lower half of the saw blade 3 is exposed on the lower surface of the panel component 1.
  • the composite saw also has a chamfer cut type protective cover 4 installed on it; the chamfer cut type protective cover 4 is arranged on the lower surface of the panel component 1; the saw blade 3 exposed on the lower surface of the panel component 1 is received in the chamfer cut type protective cover 4; and the middle portion of the chamfer cut type protective cover 4 is provided with a saw blade seam through which the saw blade 3 can extend out.
  • the chamfer cut type protective cover 4 arranged on the lower surface of the panel component 1 has a simple structure and low manufacturing cost.
  • the lower half of the saw blade 3 is prevented from being exposed to the outside. At work, manual operation is not needed.
  • the protective cover is reliable and the composite saw is safer in use. Thus, the safety of the composite saw is increased.
  • the chamfer cut type protective cover features a simple structure and low manufacturing cost; in any state and in cases where the composite saw is switched into the table cut mode, the lower half of the saw blade is prevented from being exposed to the outside; the chamfer cut type protective cover starts to work with the input of a workpiece; the chamfer cut type protective cover is a follower and is more reliable at work. Thus, the composite saw is safer in use.
  • the panel component 1 is provided with a saw blade seam through which the upper half of the saw blade 3 can extend to the upper surface of the panel component 1.
  • the upper surface of the panel component 1 may be provided with a table type protective cover.
  • the table type protective cover may extend to the upper surface of the panel component 1.
  • the saw blade 3 may be received in the table type protective cover.
  • the composite saw can respectively use the upper half and the lower half of the saw blade 3 by switching its working state.
  • the chamfer cut type protective cover of the present disclosure may also be applied to the common chamfer cutting machine as well as the pull rod type chamfer cutting machine.
  • the panel component 1, frame 2 and saw blade 3 have been widely used. Their structures and principles are with the same as those in the prior art, thus a detailed description of these parts is not necessary.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
EP11814020.1A 2010-08-06 2011-01-28 Schutzabdeckung für eine verbundstoff-schrägkantensäge Withdrawn EP2572846A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2010202873688U CN201783702U (zh) 2010-08-06 2010-08-06 复合锯斜切式防护罩
PCT/CN2011/070763 WO2012016436A1 (zh) 2010-08-06 2011-01-28 复合锯斜切式防护罩

Publications (2)

Publication Number Publication Date
EP2572846A1 true EP2572846A1 (de) 2013-03-27
EP2572846A4 EP2572846A4 (de) 2014-01-01

Family

ID=43815680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11814020.1A Withdrawn EP2572846A4 (de) 2010-08-06 2011-01-28 Schutzabdeckung für eine verbundstoff-schrägkantensäge

Country Status (3)

Country Link
EP (1) EP2572846A4 (de)
CN (1) CN201783702U (de)
WO (1) WO2012016436A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103286376B (zh) * 2013-03-28 2015-11-18 攀钢集团攀枝花钢钒有限公司 一种带有挡水罩的热锯机
CN109676508B (zh) * 2019-01-28 2025-06-06 深圳市钜达机械设备有限公司 一种用于抛光机传动机构的防尘罩
CN120228593B (zh) * 2025-05-26 2025-10-17 宁波协诚电动工具有限公司 一种带锯片保护装置的复合锯

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2589309A (en) * 1946-08-27 1952-03-18 Ralph R Roemer Circular saw safety guard
US2564350A (en) * 1946-12-03 1951-08-14 Skilsaw Inc Machine tool
US4150598A (en) * 1977-12-12 1979-04-24 Rockwell International Corporation Radial arm saw guard
US5918522A (en) * 1996-06-28 1999-07-06 Benedict Engineering Company, Inc. Radial arm saw blade guard
TWM284466U (en) * 2005-06-03 2006-01-01 Rexon Ind Corp Ltd Disc saw having dust collecting cover liftable with saw
GB0615150D0 (en) * 2006-07-29 2006-09-06 Black & Decker Inc Mitre saw with top table
TW200927340A (en) * 2007-12-24 2009-07-01 Rexon Ind Corp Ltd Dust collector for use in miter saw

Also Published As

Publication number Publication date
WO2012016436A1 (zh) 2012-02-09
CN201783702U (zh) 2011-04-06
EP2572846A4 (de) 2014-01-01

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