EP1078722A1 - Table-mounted chain saw - Google Patents

Table-mounted chain saw Download PDF

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Publication number
EP1078722A1
EP1078722A1 EP00105898A EP00105898A EP1078722A1 EP 1078722 A1 EP1078722 A1 EP 1078722A1 EP 00105898 A EP00105898 A EP 00105898A EP 00105898 A EP00105898 A EP 00105898A EP 1078722 A1 EP1078722 A1 EP 1078722A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
cutting
hood
chain
lifter
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Withdrawn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
EP00105898A
Other languages
German (de)
French (fr)
Inventor
Stefan Steinbach
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1078722A1 publication Critical patent/EP1078722A1/en
Withdrawn legal-status Critical Current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
    • B27G19/06—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws for band or strap saws

Definitions

  • the invention relates to a table cutting device, of which in the operation no dangers (e.g. cuts, noise damage and injuries Setbacks of the workpieces).
  • a saw table is equipped with a chain cutting technique.
  • a chain sword attached under the table protrudes beyond the table.
  • the drive takes place under the table.
  • the switch is caused by the movement of the workpiece triggered.
  • the switch is arranged so that the cutting chain immediately Movement stops as soon as the workpiece has left the cutting area.
  • the protective hood is designed and arranged so that the cutting chain in every situation of the cutting process against accidental contact is covered. Furthermore, the protective hood is designed and arranged such that a weight balance the protective hood a little resistance to Workpiece. In addition, the protective hood in the gate area is designed so that the gate is carried out precisely due to the vertical cutting movement can be.
  • Fig. 1 shows the front view of the table saw
  • Fig. 2 shows the side view 3 shows the gate situation
  • a table saw device is described in which the separating device is a Chainsaw represents.
  • the chain sword 1 is attached under the saw table 7 so that the Chain sword 1 when pressing the workpiece 8 horizontally against one spring change switch 6 moves.
  • the changeover switch 6 has the following function: The changeover switch 6 is open, no pressure is exerted by a workpiece 8 the chain sword 1 exercised.
  • the drive motor 2 runs, but the connection to Chain sword 1 is separated by an E clutch / brake / combination 3 and the Chain braked.
  • the changeover switch 6 is closed, pressure is exerted by a workpiece 8 the chain sword 1 exercised.
  • the drive motor 2 runs, the connection to the chain sword 1 is made by the E clutch / brake / combination 3 and the brake is solved.
  • the hood lifter With the workpiece 8, the hood lifter u. Cut protection 5 raised and thus the divided protective cover 4 is placed on the workpiece 8. Before the workpiece 8 has left the cutting area, the hood lifter lowers u. Cut protection 5 behind the workpiece 8 and thus covers the protruding cutting chain.
  • the divided protective hood 4 is designed so that a weight balance ensures that the protective hood 4 has a low resistance to the workpiece 8 exercises. Furthermore, the hood lifter u. Cut protection constructed so that the gate precise can be performed through an opening.

Abstract

The table chainsaw has the chain cutter (1) mounted at the sawing table (7). The motor (2) is linked to the chain drive through a combined electrical clutch/brake which is tripped by the workpiece (8) acting on a change switch (6), so that the chainsaw is only powered when a workpiece is in the cutting zone. The hood lifter (5) raises the hood by the workpiece thickness and the lifter is lowered as the cutting protection before the workpiece is through the cutting zone. A divided protective shrouding hood (4) prevents accidental contact with the cutting zone by the user.

Description

Die Erfindung betrifft eine Tischschneidevorrichtung, von der bei der Bedienung keine Gefahren (zB. Schnittverletzungen, Lärmschäden sowie Verletzungen bei Rückschlägen der Werkstücke) ausgehen.The invention relates to a table cutting device, of which in the operation no dangers (e.g. cuts, noise damage and injuries Setbacks of the workpieces).

Bisher werden für Tischsägen nur die Kreissägentechnik angewendet. Die davon ausgehenden Gefahren sind nicht vermeidbar.So far, only circular saw technology has been used for table saws. The one of them outgoing dangers are unavoidable.

Es wurden auch Anstrengungen unternommen,das Gefahrenpotentional der Kreissägentechnik zu mindern. (zB. Aktives Sicherheitssystem an Tischkreissägen DE 196 09 771 A 1 und DE 197 16 035 A 1) Die Ergebnisse zeigen aber auf, daß die Kreissägentechnik sicherheitstechnisch nicht beherrschbar ist.Efforts have also been made to identify the potential danger of circular saw technology to mitigate. (e.g. active safety system on table saws DE 196 09 771 A 1 and DE 197 16 035 A 1) The results show, however, that the circular saw technology cannot be mastered in terms of safety.

Beschreibungdescription

Erfindungsgemäß wird ein Sägetisch mit einer Kettenschneidtechnik ausgestattet. Ein unter dem Tisch befestigtes Kettenschwert ragt über den Tisch hinaus.According to the invention, a saw table is equipped with a chain cutting technique. A chain sword attached under the table protrudes beyond the table.

Der Antrieb erfolgt unter dem Tisch.The drive takes place under the table.

Erfindungsgemäß wird die Schneidkette erst in Bewegung gesetzt, wenn das zu schneidende Werkstück einen Druck auf die Schneidkette ausübt.According to the cutting chain is only set in motion when that cutting workpiece exerts pressure on the cutting chain.

Erfindungsgemäß wird der Schalter durch die Bewegung des Werkstückes ausgelöst.According to the invention, the switch is caused by the movement of the workpiece triggered.

Erfindungsgemäß ist der Schalter so angeordnet, daß die Schneidkette sofort die Bewegung abbricht , sobald das Werkstück den Schneidbereich verlassen hat.According to the switch is arranged so that the cutting chain immediately Movement stops as soon as the workpiece has left the cutting area.

Erfindungsgemäß wird durch einen Schalter im Anschnittsbereich eine Leerlauf- Kupplungs-Brems-Kombination geschaltet.According to the invention, a switch in the gate area Idle clutch-brake combination switched.

Erfindungsgemäß ist die Schutzhaube so gestaltet und angeordnet, daß die Schneidkette in jeder Situation des Schneidvorganges gegen unbeabsichtigte Berührung abgedeckt ist. Weiterhin ist die Schutzhaube so gestaltet und angeordnet, daß mittels einem Gewichtsausgleich die Schutzhaube einen geringen Wiederstand zum Werkstück ausübt. Zuzüglich ist die Schutzhaube im Anschnittsbereich so gestaltet, daß der Anschnitt auf Grund der senkrechten Schneidbewegung präzise durchgeführt werden kann.According to the protective hood is designed and arranged so that the cutting chain in every situation of the cutting process against accidental contact is covered. Furthermore, the protective hood is designed and arranged such that a weight balance the protective hood a little resistance to Workpiece. In addition, the protective hood in the gate area is designed so that the gate is carried out precisely due to the vertical cutting movement can be.

AusführungsbeispielEmbodiment

Die Tischkettensäge soll an Hand des Ausführungsbeispieles näher erläutert werden.The table saw will be explained in more detail using the exemplary embodiment.

Fig. 1 stellt die Vorderansicht der Tischkettensäge dar, Fig. 2 die Seitenansicht die Fig. 3 die Anschnittsituation und Fig. 4 bevor der Schnitt beendet wird.Fig. 1 shows the front view of the table saw, Fig. 2 shows the side view 3 shows the gate situation and FIG. 4 before the cut is ended.

Es wird eine Tischsägevorrichtung beschrieben, bei der die Trennvorrichtung eine Kettensäge darstellt. Das Kettenschwert 1 ist unter dem Sägetisch 7 so befestigt, daß das Kettenschwert 1 bei dem Andruck des Werkstückes 8 sich horizontal gegen einen federnen Wechselschalter 6 bewegt. Der Wechselschalter 6 hat folgende Funktion: Der Wechselschalter 6 ist geöffnet, es wird kein Druck durch ein Werkstück 8 auf das Kettenschwert 1 ausgeübt. Der Antriebsmotor 2 läuft, aber die Verbindung zum Kettenschwert 1 ist duch eine E- Kupplungs/ Brems/Kombination 3 getrennt und die Kette gebremst.A table saw device is described in which the separating device is a Chainsaw represents. The chain sword 1 is attached under the saw table 7 so that the Chain sword 1 when pressing the workpiece 8 horizontally against one spring change switch 6 moves. The changeover switch 6 has the following function: The changeover switch 6 is open, no pressure is exerted by a workpiece 8 the chain sword 1 exercised. The drive motor 2 runs, but the connection to Chain sword 1 is separated by an E clutch / brake / combination 3 and the Chain braked.

Der Wechselschalter 6 ist geschlossen, es wird Druck durch ein Werkstück 8 auf das Kettenschwert 1 ausgeübt. Der Antriebsmotor 2 läuft, die Verbindung zum Kettenschwert 1 ist durch die E- Kupplungs/ Brems/Kombination 3 hergestellt und die Bremse ist gelöst.The changeover switch 6 is closed, pressure is exerted by a workpiece 8 the chain sword 1 exercised. The drive motor 2 runs, the connection to the chain sword 1 is made by the E clutch / brake / combination 3 and the brake is solved.

Damit wird gewährleistet, daß die Schneidkette des Kettenschwertes 1 nur dann in Bewegung ist, wenn sich ein Werkstück 8 im Schneidbereich befindet und sofort die Schneidkette des Kettenschwertes 1 zum Stillstand kommt, wenn das Werkstück 8 keinen Druck auf das Kettenschwert 1 ausübt, also das Werkstück 8 ist durchtrennt oder der Schnittvorgang ist abgebrochen.This ensures that the cutting chain of the chain sword 1 only in Movement is when a workpiece 8 is in the cutting area and immediately the cutting chain of the chain sword 1 comes to a standstill when the workpiece 8 does not exert any pressure on the chain sword 1, ie the workpiece 8 is severed or the cutting process has been canceled.

Mit dem Werkstück 8 wird der Haubenheber u. Schnittschutz 5 angehoben und damit die geteilte Schutzhaube 4 auf das Werkstück 8 aufgesetzt. Bevor das Werkstück 8 den Schnittbereich verlassen hat, senkt sich der Haubenheber u. Schnittschutz 5 hinter dem Werkstück 8 und deckt damit die hervortretende Schneidkette ab.With the workpiece 8, the hood lifter u. Cut protection 5 raised and thus the divided protective cover 4 is placed on the workpiece 8. Before the workpiece 8 has left the cutting area, the hood lifter lowers u. Cut protection 5 behind the workpiece 8 and thus covers the protruding cutting chain.

Weiterhin ist die geteilte Schutzhaube 4 so ausgeführt, daß ein Gewichtsausgleich dafür sorgt, daß die Schutzhaube 4 einen geringen Wiederstand zum Werkstück 8 ausübt. Weiterhin ist der Haubenheber u. Schnittschutz so konstruiert, daß der Anschnitt durch eine Öffnung präziese durchgeführt werden kann.Furthermore, the divided protective hood 4 is designed so that a weight balance ensures that the protective hood 4 has a low resistance to the workpiece 8 exercises. Furthermore, the hood lifter u. Cut protection constructed so that the gate precise can be performed through an opening.

Mit der beschriebenen Konstruktion der Tischkettensäge wird ein Beitrag zum umfassenden Arbeitsschutz an Sägevorrichtungen sowohl im Arbeits- als auch im Heimwerkerbereich geliefert. With the construction of the table saw described, a contribution to Comprehensive occupational safety on sawing devices in both work and in DIY area delivered.

Benennung der verwendeten BezugszeichenName of the reference symbols used

1 -1 -
KettenschwertChain sword
2 -2 -
Motorengine
3 -3 -
E. Kupplungs/ Bremse/ KombinationE. Clutch / brake / combination
4 -4 -
geteilte Schutzhaubedivided protective hood
5 -5 -
Haubenheber u. SchnittschutzHood lifter u. Cut protection
6 -6 -
WeehselsehalterHorse holder
7 -7 -
SägetischSaw table
8 -8th -
Werkstückworkpiece

Claims (1)

Tischsägevorrichtung, dadrch gekennzeichnet, daß die Trennvorrichtung als Kettensäge mit dem Ketteuschwert (1) am Sägetisch (7) befestigt ist und der Motor (2) durch eine E- Kupplungs/ Bremse- Kombination (3) zum Kettenantrieb mittels eines Wechselschalters (6) der durch das Werkstück (8) geschaltet wird und damit die Schneidkette nur dann in Bewegung ist, wenn ein Werkstück sich im Schneidbereich befindet und der Haubenheber (5) die Haube auf die Werkstücksstärke anhebt und der Haubenheber als Schneidschutz(5) sich absenkt bevor das Werkstück den Schneidbereich passiert hat und durch eine geteilte Schutzhaube (4) der Bediener nicht unbeabsichtigt den Schneidbereich berühren kann.Table saw device, characterized in that the separating device as a chainsaw is attached to the saw table (7) with the chain blade (1) and the motor (2) through an electric clutch / brake combination (3) for chain drive using a change-over switch (6) which is switched by the workpiece (8) and thus the cutting chain is only in motion when a workpiece is in the cutting area and the Hood lifter (5) raises the hood to the workpiece thickness and the hood lifter as Cutting protection (5) lowers before the workpiece has passed the cutting area and by a divided protective hood (4) the operator does not unintentionally Can touch the cutting area.
EP00105898A 1999-08-21 2000-03-20 Table-mounted chain saw Withdrawn EP1078722A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19939769 1999-08-21
DE1999139769 DE19939769A1 (en) 1999-08-21 1999-08-21 Table saw

Publications (1)

Publication Number Publication Date
EP1078722A1 true EP1078722A1 (en) 2001-02-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00105898A Withdrawn EP1078722A1 (en) 1999-08-21 2000-03-20 Table-mounted chain saw

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EP (1) EP1078722A1 (en)
DE (1) DE19939769A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1541306A1 (en) * 2003-12-09 2005-06-15 WGM Winter Gerätebau & Metallverarbeitung GmbH Safety system for table chainsaws

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005056482B3 (en) * 2005-11-16 2007-01-11 WGM Winter Gerätebau und Metallverarbeitung GmbH Protection device for a chain saw bench comprises a hood which moves on a splitting wedge, a control lever which operates a safety switch, a chain strut which pivots during the sawing operation and a circuit breaker
DE102006048649A1 (en) * 2006-10-14 2008-04-17 WGM Winter Gerätebau und Metallverarbeitung GmbH Modified operator protection on table chain saws
DE102011005020A1 (en) * 2011-03-03 2012-09-06 Robert Bosch Gmbh Machine tool system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785465A (en) * 1972-02-22 1974-01-15 R Johansson Centrifugal clutches in series with brake
US3880032A (en) * 1973-08-22 1975-04-29 Dwight C Green Feeler operated saw guard
US3965787A (en) * 1975-12-15 1976-06-29 Plischke Eugene W Retractable blade guard
BE881565A (en) * 1980-02-06 1980-05-30 Lefort Camille H BATI USED AS A SUPPORT AND CAPABLE OF RECEIVING A CHAINSAW FOR CUTTING, ALLOWING IT THUS DUAL USE
EP0035380A1 (en) * 1980-03-01 1981-09-09 McCoubrey, Samuel Saw assembly and work table therefor
US4320679A (en) * 1980-05-19 1982-03-23 Roger Trudeau Chain saw support

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3785465A (en) * 1972-02-22 1974-01-15 R Johansson Centrifugal clutches in series with brake
US3880032A (en) * 1973-08-22 1975-04-29 Dwight C Green Feeler operated saw guard
US3965787A (en) * 1975-12-15 1976-06-29 Plischke Eugene W Retractable blade guard
BE881565A (en) * 1980-02-06 1980-05-30 Lefort Camille H BATI USED AS A SUPPORT AND CAPABLE OF RECEIVING A CHAINSAW FOR CUTTING, ALLOWING IT THUS DUAL USE
EP0035380A1 (en) * 1980-03-01 1981-09-09 McCoubrey, Samuel Saw assembly and work table therefor
US4320679A (en) * 1980-05-19 1982-03-23 Roger Trudeau Chain saw support

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1541306A1 (en) * 2003-12-09 2005-06-15 WGM Winter Gerätebau & Metallverarbeitung GmbH Safety system for table chainsaws

Also Published As

Publication number Publication date
DE19939769A1 (en) 2001-02-22

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