EP1522394A2 - Scie circulaire à couteau diviseur - Google Patents

Scie circulaire à couteau diviseur Download PDF

Info

Publication number
EP1522394A2
EP1522394A2 EP04009771A EP04009771A EP1522394A2 EP 1522394 A2 EP1522394 A2 EP 1522394A2 EP 04009771 A EP04009771 A EP 04009771A EP 04009771 A EP04009771 A EP 04009771A EP 1522394 A2 EP1522394 A2 EP 1522394A2
Authority
EP
European Patent Office
Prior art keywords
adjusting
circular saw
splitting wedge
adjustment
spacer
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
EP04009771A
Other languages
German (de)
English (en)
Other versions
EP1522394B1 (fr
EP1522394A3 (fr
Inventor
Konrad Westermann
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.)
Metabowerke GmbH and Co
Original Assignee
Metabowerke GmbH and Co
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 Metabowerke GmbH and Co filed Critical Metabowerke GmbH and Co
Publication of EP1522394A2 publication Critical patent/EP1522394A2/fr
Publication of EP1522394A3 publication Critical patent/EP1522394A3/fr
Application granted granted Critical
Publication of EP1522394B1 publication Critical patent/EP1522394B1/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
    • B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
    • B27G19/08—Accessories for keeping open the saw kerf, e.g. riving knives or wedge plates

Definitions

  • the present invention relates to a circular saw with an adjustable Splitting wedge according to the preamble of claim 1.
  • DE 83 12 668 U is a circular saw with an adjustable riving knife known.
  • the alignment of the splitting wedge in the plane of the saw blade is done by a set screw, by means of which the splitting wedge can be bent.
  • the riving knife is firmly connected to a lower end with a housing.
  • the adjusting screw is arranged above the fixed connection, so that the Upper part of the splitting wedge by adjusting the adjusting screw in the plane of the Saw blade can be pressed.
  • a disadvantage of this arrangement is that the splitting wedge of a constant bending load is exposed. Furthermore, the riving knife must be so thin that the Bending by the set screw is easily possible. This leads to a total unstable construction. A bending of the splitting wedge during the sawing process is also possible through the workpiece and causes an imprecise Cut.
  • Another possibility is to split the riving knife on a high-precision To attach mounting part, so that an adjustment of the riving knife no longer necessary is.
  • the disadvantage of this is high production costs for the support part and a lack of customization of saw blades different Thickness.
  • the present invention is based on the problem, the splitting wedge on a Circular saw to construct so that it is stable and at the same time a Adjustment in the plane of the saw blade with ease of use allows becomes.
  • a basic idea of the present invention is that the splitting wedge must not be bent in the plane of the saw blade, but firmly a spacer is mounted and parallel through this in the plane of the saw blade is adjusted.
  • splitting wedge in addition to the parallel adjustment also in its position relative to the saw blade is adjustable.
  • the spacer has two adjustment components, the relative to each other at inclined planes along are displaceable.
  • the inclined planes on the adjusting components be formed by several pips. There should be such an angle be predeterminable that with a slight displacement of the two inclined planes against each other already a recognizable parallel offset of the splitting wedge is present. For this purpose, several teeth are not mandatory. Using several points is the bearing surface between the adjusting components but larger, without the adjustment itself made thicker Need to become.
  • adjustment components are centered by a combination of a write and a nut including a diaphragm spring are held together and the splitting wedge is fastened at the same time by means of this combination can be dispensed with an additional fastener for the riving knife.
  • the two adjusting components are pressed against each other by the disc spring, as long as no additional force acts.
  • the additional force is advantageously applied by a set screw, one of the adjusting components relative to the other adjusting component shifts.
  • the spacer has no two adjustment components but instead a steering linkage.
  • the circular saw shown in Fig. 1 has a support structure 1, a saw blade 2, a splitting wedge 3 and a spacer 4.
  • the saw blade 2 is rotatable attached to the support structure 1 and is driven by a motor.
  • the spacer 4 is attached to the support structure 1.
  • the splitting wedge 3 is by means of a fastener 5, on the spacer 4 in a holding position attached and by the spacer 4 parallel to itself in the plane of the saw blade 2 adjustable.
  • the fastening element 5 has, preferably, a combination of a screw and a nut on.
  • the riving knife 3 has an arcuate slot 7 here.
  • the fastener 5, with which the splitting wedge 3 is fastened to the spacer 4 extends through the slot 7.
  • Through the slot 7 is a change the holding position of the riving knife 3 allows.
  • the change of the holding position then allows a height and / or distance adjustment of the splitting wedge. 3 relative to the saw blade 2.
  • the spacer 4 has two protruding tabs 8, 9 (FIG. 1), preferably on the top and bottom on. When attached to the spacer 4 Splitting wedge 3 protrude the two tabs 8, 9 in the arcuate slot 7 of Splitting wedge 3 into it. From the tabs 8, 9 opposite side is a fixing plate 10, the recesses 11, 12 for the tabs 8, 9th has pressed against the riving knife 3. The fastening element 5, the Splitting wedge 3 attached to the spacer 4, fixed beyond the also Fastening washer 10 to riving knife 3 and spacer 4.
  • the spacer 4 has a first and a second adjusting member 13, 14 and an adjusting mechanism 15.
  • the first Adjustment member 13 is attached to the support structure 1.
  • the splitting wedge 3 is attached to the second adjustment member 14.
  • the adjusting components 13, 14 each have an inclined plane 16, 17.
  • the adjusting components 13,14 are with the inclined planes 16, 17 arranged against each other. A shift the inclined planes 16, 17 against each other thus causes a parallel adjustment of the splitting wedge 3.
  • the inclined planes 16, 17 respectively several spikes 18, 19, 20 on.
  • such an angle can be specified, that at a small displacement of the two inclined planes 16, 17 against each other already a recognizable parallel offset of the splitting wedge 3 is present.
  • the teeth 18, 19, 20 ensures that the support surface between the adjusting components 13, 14 remains large, without requiring the adjustment components 13, 14 must be thicker. The large contact surface leads to a more stable guidance of the splitting wedge 3.
  • Both adjusting components 13, 14 each have a recess 21 in the middle, 22 on (Fig. 2, 3). They are by means of a fastener 5a, which through the recesses 21, 22 extends, fastened against each other.
  • the fastener 5a is the same as the fastener 5, with which the splitting wedge 3 on the spacer 4 or more precisely is attached to the second adjustment member 14 of the spacer 4.
  • a plate spring 23 is provided which generates a restoring force.
  • the restoring force By the restoring force, the two adjustment components 13, 14 against each other pressed, as long as no counterforce acts.
  • the restoring force it can also by another construction, in particular another Spring arrangement, be provided.
  • the counterforce for the adjustment of the Splitting wedge 3 is applied by the adjusting mechanism 15.
  • the first adjustment member 13 is, preferably, attached to the support structure and the second adjustment member 14 with the riving knife 3 is through the Adjusting mechanism 15 relative to the first adjustment member 13 adjustable.
  • the adjusting mechanism 15 has a projection 24 on the second adjusting component 14, an adjusting screw 25 and a stop 26.
  • the supernatant 24 protrudes into an edge-side recess 27 of the first adjustment member 13th into it.
  • the projection 24 has an internal thread parallel to the plane of the Saw blade 2 runs on.
  • the screw 25th screwed is the screw 25th screwed.
  • the screw 25 is preferably designed as Allen screw.
  • composite arrangement lies the screw 25 to the stop 26 at.
  • the stop 26 is replaced by a Surface formed on the first adjustment member 13.
  • the internal thread is preferably by an inserted into the supernatant 24 hex nut realized.
  • the adjusting components 13, 14 are preferably unprocessed cast aluminum parts. This allows a cost-effective production.
  • the handlebars 30, 31 are connected by one or two connecting rods 32, 33rd connected with each other.
  • the handlebars 30, 31 together with the Connecting rods 32, 33 a parallelogram.
  • the adjustment mechanism 15th is attached to the second handlebar 31.
  • the adjustment mechanism 15th has an adjusting screw 25, preferably an Allen screw, and an internal thread 28 perpendicular to the plane of the saw blade 2.
  • the adjusting screw 25 is screwed into the internal thread 28.
  • the set screw 25 is located on a stop 26 on the first handlebar 31st at. By turning the screw 25 in a clockwise direction, the handlebars 30, 31 shifted parallel to each other.
  • a restoring force is required, which is the shift the two handlebars 30, 31 realized relative to each other.
  • the Restoring force is, preferably, by a tension spring 34, which between the two handlebars 30, 31 is arranged, provided.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Details Of Cutting Devices (AREA)
  • Sawing (AREA)
  • Knives (AREA)
  • Soil Working Implements (AREA)
  • Stringed Musical Instruments (AREA)
  • Harvester Elements (AREA)
EP04009771A 2003-10-10 2004-04-24 Scie circulaire à couteau diviseur Expired - Lifetime EP1522394B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10347915 2003-10-10
DE10347915A DE10347915B3 (de) 2003-10-10 2003-10-10 Kreissäge mit einem verstellbaren Spaltkeil

Publications (3)

Publication Number Publication Date
EP1522394A2 true EP1522394A2 (fr) 2005-04-13
EP1522394A3 EP1522394A3 (fr) 2007-01-10
EP1522394B1 EP1522394B1 (fr) 2008-07-30

Family

ID=33483137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04009771A Expired - Lifetime EP1522394B1 (fr) 2003-10-10 2004-04-24 Scie circulaire à couteau diviseur

Country Status (3)

Country Link
EP (1) EP1522394B1 (fr)
AT (1) ATE402796T1 (fr)
DE (2) DE10347915B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101450399B (zh) * 2007-12-06 2010-08-25 张理政 具有保护结构的锯切装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3191272A4 (fr) * 2014-09-09 2018-02-07 Robert Bosch GmbH Agencement de montage de couteau diviseur pour scie sur table
CN221184932U (zh) 2020-11-23 2024-06-21 米沃奇电动工具公司 圆锯
US12465982B2 (en) 2022-02-24 2025-11-11 Techtronic Cordless Gp Track saw including plunge lockout mechanism
US12083613B2 (en) 2022-10-18 2024-09-10 Techtronic Cordless Gp Track saw including plunge lockout mechanism

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH214230A (de) * 1940-04-18 1941-04-15 Mey Kg Maschf Mafell Handkreissäge.
DE917746C (de) * 1940-09-12 1954-09-09 Leona Pflaumer Geb Steuer Vorrichtung zum Halten des Spaltkeiles einer Kreissaege
GB2273078A (en) * 1992-12-04 1994-06-08 Black & Decker Inc Adjustable riving knife

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101450399B (zh) * 2007-12-06 2010-08-25 张理政 具有保护结构的锯切装置

Also Published As

Publication number Publication date
ATE402796T1 (de) 2008-08-15
DE502004007718D1 (de) 2008-09-11
DE10347915B3 (de) 2004-12-23
EP1522394B1 (fr) 2008-07-30
EP1522394A3 (fr) 2007-01-10

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