DE3411353A1 - Safety device for saws - Google Patents
Safety device for sawsInfo
- Publication number
- DE3411353A1 DE3411353A1 DE19843411353 DE3411353A DE3411353A1 DE 3411353 A1 DE3411353 A1 DE 3411353A1 DE 19843411353 DE19843411353 DE 19843411353 DE 3411353 A DE3411353 A DE 3411353A DE 3411353 A1 DE3411353 A1 DE 3411353A1
- Authority
- DE
- Germany
- Prior art keywords
- saw
- platform
- safety device
- switching means
- safety
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0078—Safety devices protecting the operator, e.g. against accident or noise
- B23Q11/0089—Safety devices protecting the operator, e.g. against accident or noise actuating operator protecting means, e.g. closing a cover element, producing an alarm signal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0078—Safety devices protecting the operator, e.g. against accident or noise
- B23Q11/0082—Safety devices protecting the operator, e.g. against accident or noise by determining whether the operator is in a dangerous position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
- F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
- F16P3/12—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body with means, e.g. feelers, which in case of the presence of a body part of a person in or near the danger zone influence the control or operation of the machine
Abstract
Description
Sicherheitsvorrichtung für SägenSafety device for saws
Die Erfindung bezieht sich auf eine Sicherheitsvorrichtung gemäß dem Oberbegriff des Anspruches 1.The invention relates to a safety device according to the Preamble of claim 1.
Für Sägen sind die verschiedensten Sicherheitsvorrichtungen bekannt. So gibt es Spaltkeile, die das Klemmen des Sägeblattes im Holz vermeiden; Schutzhauben, die eine Berührung des Sägeblattes durch die Bedienungsperson verhindern und auch elektrische Schutzschaltungen wie Überlast-Sicherungen und Zweihand-Sicherheitsschalter, die erfordern, daß die Bedienungsperson mit beiden Händen die Säge in Betrieb setzt und del. mehr.A wide variety of safety devices are known for saws. There are riving knives that prevent the saw blade from jamming in the wood; Protective hoods, which prevent the operator from touching the saw blade and also electrical protective circuits such as overload fuses and two-hand safety switches, which require the operator to operate the saw with both hands and del. more.
Diese Vorrichtungen versagen jedoch, wenn eine weitere Bedienungsperson die Sicherheitsvorkehrung aufhebt, wenn z.B. die erste Bedienung person an der Säge hantiert.However, these devices fail if another operator The safety precaution is canceled if, for example, the first person to operate the saw fiddled.
Der Erfindung liegt die Aufgabe zugrunde, eine Sicherheitsvorrichtung für Sägen zu schaffen, deren Sicherheitsvorkehrungen auch nicht durch weitere Bedienungspersonen außer Kraft gesetzt werden können, wenn sich eine Person in einer Sicherheitszone der Säge befindet.The invention is based on the object of a safety device for saws to create their safety precautions not even by other operators Can be overridden when a person is in a safety zone the saw is located.
Diese Aufgabe wird durch beine Sicherheitsvorrichtung gemäß Anspruch 1 gelöst.This object is achieved by a safety device according to claim 1 solved.
Die Vorteile der erfindungsgemäßen Sicherheitsvorrichtung liegen darin, daß die Säge überhaupt nicht in Betrieb genommen werden kann, oder sie sofort außer Betrieb gesetzt wird, wenn irgendein Objekt in der Sicherheitszone durch sein Gewicht die Plattform belastet.The advantages of the safety device according to the invention are that the saw cannot be put into operation at all, or that it immediately goes out of operation Operation is set when any object is in the safety zone by its weight loads the platform.
Weitere vorteilhafte Ausgestaltungen der Erfindung entnimmt man den Unteransprüchen.Further advantageous embodiments of the invention can be found in the Subclaims.
Mit Hilfe eines Ausführungsbeispiels soll die Erfindung anhand der Zeichnungen noch näher erläutert werden.With the help of an embodiment, the invention is based on the Drawings are explained in more detail.
Es zeitz FIG.1 eine schematisch dargestellte Säge mit unbelasteter Plattform FIG.2 eine Säge gemäß FIG.1 mit belasteter Plattform.It zeitz FIG.1 a schematically shown saw with unloaded Platform FIG.2 a saw according to FIG.1 with a loaded platform.
Bei einer Säge, wie sie ganz schematisch in Figur 1 dargestellt ist, wird ein Sägetischl von einer beweglich aufgehängten Plattform 2 umgeben. Der Sägetisch 1 ist fest auf einen Fundament 3 verankert, auf den auch die Aufhängung 4 für die Plattform 2 angeordnet ist.In the case of a saw, as it is shown very schematically in Figure 1, a saw table is surrounded by a movably suspended platform 2. The saw table 1 is firmly anchored on a foundation 3, on which the suspension 4 for the Platform 2 is arranged.
Innerhalb des Gehäuses lp, das den Sägetisch 1 umgibt, ist der Antrieb 5 für eine Kreissäge 6 untergebracht. Die Kreissäge 6 nebst Antrieb 5 ist mittels eines Hydraulikzylinders 7 ein- und ausfahrbar, sodaß das Sägeblatt der Kreissäge 6 aus dem Inneren des Gehäuses la heraus gefahren werden kann. In der ausgefahrenen Stellung ist die normale Arbeitsposition eingenommen. Die Inbetriebnahne der Säge 6 kann von der Bedienungsperson 8 mit Hilfe der üblichen, und daher hier nicht gezeigten Zweihand- Sicherheitsschalter erfolgen.The drive is located inside the housing 1p, which surrounds the saw table 1 5 housed for a circular saw 6. The circular saw 6 together with the drive 5 is by means of a hydraulic cylinder 7 can be retracted and extended, so that the saw blade of the circular saw 6 can be driven out of the interior of the housing la. In the extended Position is the normal working position. The start-up of the saw 6 can by the operator 8 with the help of the usual, and therefore not shown here Two-hand safety switch.
Der Betrieb der Säge ist jedoch für die Bedienungsperson gefährlich, wenn sie sich in einer Sicherheitszone befindet, von der aus die Säge 6 berührt werden kann.However, the operation of the saw is dangerous for the operator, if it is in a safety zone from which the saw 6 touches can be.
Um hier möglichen Unfällen vorzubeugen, ist um den Sägetisch 1 herum eine beweglich aufgehänge Plattform 2 angeordnet. Der Bereich der durch diese Plattform 2 bestimmten Sicherheitszone kann beliebig bemessen sein und wird vom Fachmann den Erfordernissen entsprechend ausgelegt.In order to prevent possible accidents here, the saw table 1 is around a movably suspended platform 2 is arranged. The area through this platform 2 certain security zone can be dimensioned as desired and is the Designed according to requirements.
Die Plattform 2 ist über Federn 4 auf dem Fundament 3 nachgiebig abgestützt. Unterhalb der Plattform 2 befindet sich ein Schalter 9, der auf Belastung der Plattform 2 reagiert.The platform 2 is resiliently supported on the foundation 3 via springs 4. A switch 9 is located below the platform 2, which switches on the loading of the platform 2 responds.
In der Figur 2 ist der Fall gezeigt, in dem die Bedienungsperson 8 die Sicherheitszone über die Plattform 2 betritt. Bei der geringsten Belastung wird der Schalter 9 durch die sich absenkende Plattform 2 betätigt und setzt verschiedene Sicherheitsmaßnahmen in Kraft.In the figure 2 the case is shown in which the operator 8 enters the security zone via platform 2. At the slightest load it will the switch 9 actuated by the lowering platform 2 and sets various Security measures in place.
Der Schalter 9 unterbricht den Stromkreislauf zum Antrieb 5 der Säge 6 und steuert über ein Relais 10 eine Alarmeinrichtung 11 an. Ferner wird bei der Stromunterbrechung ein elektromagnetisch betätigtes Hydraulikventil 12 angesteuert, welches den Hydraulikzylinder 7 derart beaufschlagt, daß augenblicklich die Säge 6 ins Gehäuse 1a versenkt wird.The switch 9 interrupts the circuit to the drive 5 of the saw 6 and controls an alarm device 11 via a relay 10. Furthermore, the Power interruption an electromagnetically actuated hydraulic valve 12 activated, which acts on the hydraulic cylinder 7 in such a way that the saw 6 is sunk into the housing 1a.
Durch diese Maßnahme ist sichergestellt, daß die Säge 6 außer Betrieb gesetzt und versenkt wird, sodaß niemand verletzt werden kann, wenn er sich in der Sicherheitszone auf der Plattform 2 befindet.This measure ensures that the saw 6 is out of operation is set and sunk so that no one can be injured if he is in the Safety zone is located on platform 2.
Durch entsprechende bauliche Maßnahmen ist Vorsorge getroffen, daß die Sicherheitsvorrichtung nicht durch unsachgemäße Eingriffe außer Kraft gesetzt werden kann.Appropriate structural measures ensure that the safety device is not overridden by improper interventions can be.
Die bewegliche Plattform 2 ist so im Fundament 3 verankert, daß ihre Absenkung bei Belastung nicht durch Stützen blockiert werden kann.The movable platform 2 is anchored in the foundation 3 that their Lowering under load cannot be blocked by supports.
Ferner sind die elektrischen und elektromagnetischen Bauteile so ausgelegt, daß die Sicherheitsvorrichtungen auch dann reagieren, wenn aus irgendeinem Grund die Versorgungsspannung unterbrochen wird.Furthermore, the electrical and electromagnetic components are designed in such a way that that the safety devices react even if for some reason the supply voltage is interrupted.
Die Art der Sägemaschinen und der technischen Betriebseinrichtungen ist für die Realisierung der Erfindung nicht von Bedeutung und kann von Fachleuten in Kenntnis der Erfindung beliebig variiert werden.The type of sawing machines and technical operating equipment is not important for the implementation of the invention and can be carried out by those skilled in the art can be varied as desired with knowledge of the invention.
Claims (6)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19848409457 DE8409457U1 (en) | 1984-03-28 | 1984-03-28 | Safety device for saws |
DE19843411353 DE3411353A1 (en) | 1984-03-28 | 1984-03-28 | Safety device for saws |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19843411353 DE3411353A1 (en) | 1984-03-28 | 1984-03-28 | Safety device for saws |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3411353A1 true DE3411353A1 (en) | 1985-10-10 |
Family
ID=6231820
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19848409457 Expired DE8409457U1 (en) | 1984-03-28 | 1984-03-28 | Safety device for saws |
DE19843411353 Ceased DE3411353A1 (en) | 1984-03-28 | 1984-03-28 | Safety device for saws |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19848409457 Expired DE8409457U1 (en) | 1984-03-28 | 1984-03-28 | Safety device for saws |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE8409457U1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008028468A1 (en) * | 2008-06-14 | 2009-12-17 | Festool Gmbh | Protection device for traction-circular saw, has protection body displaced by placing work piece in inactive position, and positioning device positioning body in protection position, during removal of work piece |
EP2230063A1 (en) * | 2009-03-20 | 2010-09-22 | Sumitomo (SHI) Demag Plastics Machinery GmbH | Accessible safety floor |
CN113245632A (en) * | 2021-07-12 | 2021-08-13 | 南通友善金属容器有限公司 | Cutting device based on steel structure processing forces safe distance to start |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1398495A (en) * | 1921-02-25 | 1921-11-29 | Guy L Rogers | Saw-controlling mechanism |
-
1984
- 1984-03-28 DE DE19848409457 patent/DE8409457U1/en not_active Expired
- 1984-03-28 DE DE19843411353 patent/DE3411353A1/en not_active Ceased
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1398495A (en) * | 1921-02-25 | 1921-11-29 | Guy L Rogers | Saw-controlling mechanism |
Non-Patent Citations (2)
Title |
---|
DE-Z.: Betriebstechnik, Nr. 3 vom 12.1.83, S. 22/23 * |
DE-Z.: Industrieanzeiger, 101. JG, Nr.58 vom 20.7.79, S. 16/17 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008028468A1 (en) * | 2008-06-14 | 2009-12-17 | Festool Gmbh | Protection device for traction-circular saw, has protection body displaced by placing work piece in inactive position, and positioning device positioning body in protection position, during removal of work piece |
DE102008028468B4 (en) * | 2008-06-14 | 2016-03-03 | Festool Gmbh | Protection device for a table circular saw with pivoting protective body as a protective shield and thus equipped table circular saw |
EP2230063A1 (en) * | 2009-03-20 | 2010-09-22 | Sumitomo (SHI) Demag Plastics Machinery GmbH | Accessible safety floor |
CN113245632A (en) * | 2021-07-12 | 2021-08-13 | 南通友善金属容器有限公司 | Cutting device based on steel structure processing forces safe distance to start |
CN113245632B (en) * | 2021-07-12 | 2021-09-21 | 南通友善金属容器有限公司 | Cutting device based on steel structure processing forces safe distance to start |
Also Published As
Publication number | Publication date |
---|---|
DE8409457U1 (en) | 1986-08-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |