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EP0501305A1 - Horizontal frame saw with automatic adjustment of the crank shaft length - Google Patents

Horizontal frame saw with automatic adjustment of the crank shaft length Download PDF

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Publication number
EP0501305A1
EP0501305A1 EP92102823A EP92102823A EP0501305A1 EP 0501305 A1 EP0501305 A1 EP 0501305A1 EP 92102823 A EP92102823 A EP 92102823A EP 92102823 A EP92102823 A EP 92102823A EP 0501305 A1 EP0501305 A1 EP 0501305A1
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EP
European Patent Office
Prior art keywords
frame
drive rod
lever
cylinder
machine according
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Withdrawn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
EP92102823A
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German (de)
French (fr)
Inventor
Röttger Jansen-Herfeld
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.)
JANSEN HERFELD ROETTGER FA
Original Assignee
JANSEN HERFELD ROETTGER FA
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 JANSEN HERFELD ROETTGER FA filed Critical JANSEN HERFELD ROETTGER FA
Publication of EP0501305A1 publication Critical patent/EP0501305A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/06—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with reciprocating saw-blades
    • B28D1/068—Components, e.g. guiding means, vibrations damping means, frames, driving means, suspension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B3/00—Gang saw mills; Other sawing machines with reciprocating saw blades, specially designed for length sawing of trunks
    • B27B3/22—Gang saw mills; Other sawing machines with reciprocating saw blades, specially designed for length sawing of trunks with horizontally-reciprocating saw frame
    • B27B3/26—Mechanisms for producing the reciprocating movement of the saw frame; Arrangements for damping vibrations; Arrangements for counter-balancing

Definitions

  • the required change in the length of the drive rod is carried out by means of a nut and screw, which are arranged at the end of the drive rod.
  • the invention has for its object to provide a machine with automatic drive rod length change, in which this change takes place automatically and according to the ideal kinematic conditions, i. H. the center of the lifting movement moves vertically downwards on a straight line with the frame.
  • the drive rod is connected to the gate frame via a crankshaft, a lever arm being attached to the crankshaft and being pivotally connected at its free end to a piston rod or cylinder, the other end of the cylinder or the piston rod being pivotable is attached to the drive rod.
  • the piston rod has the same diameter on both sides of the piston and protrudes on both sides from the end faces of the cylinder in order to be able to bring about the same forces on both sides with the same oil pressure. Since the forces exerted by the drive rod on the frame act alternately in both directions and the crankshaft forms a lever arm between the two pins of the crankshaft, the alternating forces also act on the hydraulic cylinder, so that the angular position of the lever arm changes under the influence of these forces when the oil flows into the cylinder from one side of the piston. By appropriately controlling this oil flow, the angular position of the lever and thus the articulation point of the drive rod on the frame can be changed.
  • the cylinder connected to it is connected on both sides to two throttle valves, shut-off valves and check valves connected in parallel, the opening direction of the check valves being arranged in the opposite direction.
  • the adjustment speed is specified via the throttle valves.
  • the opening and closing times of the check valves can be controlled by proximity switches, which are attached to the vertical adjustment supports and are operatively connected to the reciprocating parts, whereby the end points of the stroke movement are used to control the valves and so these points are held in the same position when viewed in the stroke direction.
  • the lever In order to keep the cylinder or piston free from the back and forth forces during the time in which nothing is being adjusted, the lever can be held firmly in place on a plate connected to the drive rod.
  • the play-free connection between lever and retaining plate is particularly important here, which can be achieved by means of a double-acting wedge system.
  • Figure 1 shows the overall view of the machine according to the invention with the frame (1), in which the saw blades (24) are arranged and which is connected to the frame machine (25) via pendulum arms (26).
  • the gate frame (1) is driven via the drive rod (3) with the stroke length twice R, the drive rod (3) being connected to the gate frame (1) via the crankshaft (23), and the crankshaft (23) in turn with the Adjusting lever (5), which in turn is connected to the adjusting cylinder (6) or its piston rod (7), the other end of the adjusting cylinder (6) being pivotally mounted on the drive rod (3) via the cylinder holder (9).
  • the wear area of the saw blades (24) relative to the stone block (28) remains constant in length and position.
  • the automatic control of the pivoting movement of the adjusting lever (5) takes place via the two proximity switches (27.1 and 27.2), which exert switching impulses on the two electromagnetic valves (15 and 16) as soon as the pendulum arm (26) goes beyond the intended end points of the lifting movement. If the frame moves down, e.g. B. from the blade position (III) to (IV), the pendulum movement of the pendulum arms (26) would shift to the left.
  • the proximity switch (27.1) opens the solenoid valve (16), which pushes the oil from the left side of the piston to its right side when the drive rod force (T) acts to the left and thereby the adjusting lever (5) counterclockwise turns. If the pendulum arm (26) goes too far to the right, this process runs in the opposite direction by opening the electromagnetic valve (15) using a proximity switch (27.2).

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mining & Mineral Resources (AREA)
  • Transmission Devices (AREA)

Abstract

Horizontal frame saw with a crank drive, in which the connecting rod (3) is connected to the saw frame (1) via a crankshaft (23) and the crankshaft (23) can be rotated via a lever (5) by means of a cylinder (6), the cylinder (6) being connected at one end to the lever (5) and its other end, to the connecting rod (3) or the saw frame (1), and its piston position being controllable by means of two shut-off valves and the angular position of the lever (5) thus being adjustable in accordance with the vertical position (III, IV, V) of the frame in order to be able to keep the central point of the stroke always at the same position, i.e. on a straight line (II) upon lowering. <IMAGE>

Description

Bei den bekannten Horizontalgattern, die vorzugsweise zum Schneiden von Stein eingesetzt sind, wird die erforderliche Veränderung der Länge der Treibstange mittels Mutter und Schraube, die am Ende der Treibstange angeordnet sind, vorgenommen.In the known horizontal gates, which are preferably used for cutting stone, the required change in the length of the drive rod is carried out by means of a nut and screw, which are arranged at the end of the drive rod.

Hierbei muß die Maschine angehalten und somit der Schnitt unterbrochen werden, wodurch einmal Zeitverlust und zum anderen Ungenauigkeiten für die ideale Kinematik der Maschine entstehen, weil in den meisten Fällen die Längenveränderung nicht exakt den Erfordernissen der Höhenposition des Gatterrahmens angepaßt wird. Hinzu kommt noch, daß diese Längenveränderung der Treibstange in gewissen Zeitabständen erfolgt und somit keine ideale Kinematik der Rahmenbewegung erreicht werden kann.Here, the machine must be stopped and the cut interrupted, causing loss of time and inaccuracies for the ideal kinematics of the machine, because in most cases the change in length is not exactly adapted to the requirements of the height position of the frame. In addition, this change in length of the drive rod takes place at certain time intervals and therefore no ideal kinematics of the frame movement can be achieved.

Der Erfindung liegt die Aufgabe zugrunde, eine Maschine mit automatischer Treibstangenlängenveränderung zu schaffen, bei der diese Veränderung automatisch und nach den idealen kinematischen Verhältnissen erfolgt, d. h. der Mittelpunkt der Hubbewegung bewegt sich mit dem Rahmen senkrecht auf einer Geraden nach unten.The invention has for its object to provide a machine with automatic drive rod length change, in which this change takes place automatically and according to the ideal kinematic conditions, i. H. the center of the lifting movement moves vertically downwards on a straight line with the frame.

Bei der erfindungsgemäßen Gattermaschine ist die Treibstange mit dem Gatterrahmen über eine Kurbelwelle verbunden, wobei an der Kurbelwelle ein Hebelarm befestigt ist, der an seinem freien Ende schwenkbar mit einer Kolbenstange bzw. Zylinder verbunden ist, wobei das andere Ende des Zylinders bzw. der Kolbenstange schwenkbar an der Treibstange befestigt ist.In the gate machine according to the invention, the drive rod is connected to the gate frame via a crankshaft, a lever arm being attached to the crankshaft and being pivotally connected at its free end to a piston rod or cylinder, the other end of the cylinder or the piston rod being pivotable is attached to the drive rod.

Die Kolbenstange hat dabei auf beiden Seiten des Kolbens den gleichen Durchmesser und ragt beidseitig aus den Stirnflächen des Zylinders, um bei gleichem Öldruck gleiche Kräfte nach beiden Seiten bewirken zu können. Da die von der Treibstange auf den Rahmen ausgeübten Kräfte alternierend in beide Richtungen wirken und die Kurbelwelle einen Hebelarm zwischen den beiden Zapfen der Kurbelwelle bildet, wirken die alternierenden Kräfte auch auf den Hydraulikzylinder, so daß sich unter dem Einfluß dieser Kräfte die Winkelstellung des Hebelarms verändert, wenn das Öl von der einen zur anderen Seite des Kolbens in den Zylinder strömt. Durch entsprechende Steuerung dieses Ölstroms kann also die Winkellage des Hebels und damit der Anlenkpunkt der Treibstange an dem Rahmen verändert werden.
Durch diese Verlagerung des Anlenkpunkts kann dann der gewünschte Längenausgleich der Treibstange erzielt werden, wodurch wiederum der Mittelpunkt der Hubbewegung an der gleichen Stelle gehalten werden kann und sich dieser somit beim Absenken des Rahmens auf einer Geraden bewegt. Um die gewünschte Schwenkbewegung des Hebels zu bewirken, ist der damit verbundene Zylinder auf beiden Seiten mit je zwei parallel geschalteten Drosselventilen, Absperrventilen und Rückschlagventilen verbunden, wobei die Öffnungsrichtung der Rückschlagventile entgegengesetzt angeordnet ist. Durch Öffnen bzw. Schließen der Absperrventile kann also die Bewegung der Kolbenstange bzw. Drehung der Kurbelwelle und damit die Längenänderung der Wirklänge der Treibstange gesteuert werden, ohne daß von außen eine Hydraulikpumpe wirken muß.
Die Verstellgeschwindigkeit wird über die Drosselventile vorgegeben. Die Öffnungs- bzw. Schließzeiten der Sperrventile können durch Näherungsschalter gesteuert werden, die an den vertikalen Verstellsupporten befestigt sind und in Wirkverbindung mit den hin und her gehenden Teilen stehen, wodurch die Endpunkte der Hubbewegung zur Steuerung der Ventile verwendet werden und so diese Punkte in Hubrichtung gesehen an der gleichen Stelle gehalten werden.
Um den Zylinder bzw. Kolben während der Zeit, in der nichts verstellt wird, von den hin und her gehenden Kräften frei zu halten, kann der Hebel durch feste Arretierung an einer mit der Treibstange verbundenen Platte festgehalten werden.
Besonders wichtig hierbei ist die spielfreie Verbindung zwischen Hebel und Halteplatte, was durch ein doppelt wirkendes Keilsystem erreicht werden kann.The piston rod has the same diameter on both sides of the piston and protrudes on both sides from the end faces of the cylinder in order to be able to bring about the same forces on both sides with the same oil pressure. Since the forces exerted by the drive rod on the frame act alternately in both directions and the crankshaft forms a lever arm between the two pins of the crankshaft, the alternating forces also act on the hydraulic cylinder, so that the angular position of the lever arm changes under the influence of these forces when the oil flows into the cylinder from one side of the piston. By appropriately controlling this oil flow, the angular position of the lever and thus the articulation point of the drive rod on the frame can be changed.
This displacement of the articulation point then enables the desired length compensation of the drive rod to be achieved, which in turn means that the center point of the lifting movement can be held at the same point and thus moves on a straight line when the frame is lowered. In order to achieve the desired pivoting movement of the lever, the cylinder connected to it is connected on both sides to two throttle valves, shut-off valves and check valves connected in parallel, the opening direction of the check valves being arranged in the opposite direction. By opening or closing the shut-off valves, the movement of the piston rod or rotation of the crankshaft and thus the change in length of the effective length of the drive rod can be controlled without a hydraulic pump having to act from the outside.
The adjustment speed is specified via the throttle valves. The opening and closing times of the check valves can be controlled by proximity switches, which are attached to the vertical adjustment supports and are operatively connected to the reciprocating parts, whereby the end points of the stroke movement are used to control the valves and so these points are held in the same position when viewed in the stroke direction.
In order to keep the cylinder or piston free from the back and forth forces during the time in which nothing is being adjusted, the lever can be held firmly in place on a plate connected to the drive rod.
The play-free connection between lever and retaining plate is particularly important here, which can be achieved by means of a double-acting wedge system.

Figur 1 zeigt die Gesamtansicht der erfindungsgemäßen Maschine mit dem Gatterrahmen (1), in dem die Sägeblätter (24) angeordnet sind und der über Pendelarme (26) mit der Gattermaschine (25) verbunden ist. Der Antrieb des Gatterrahmens (1) erfolgt über die Treibstange (3) mit der Hublänge zweimal R, wobei die Treibstange (3) über die Kurbelwelle (23) mit dem Gatterrahmen (1) verbunden ist, und die Kurbelwelle (23) ihrerseits mit dem Verstellhebel (5), der seinerseits mit dem Verstellzylinder (6) bzw. dessen Kolbenstange (7) verbunden ist, wobei das andere Ende des Verstellzylinders (6) über die Zylinderhalterung (9) an der Treibstange (3) schwenkbar gehaltert ist. Die alternierenden Kräfte in der Treibstange (T) wirken an dem Hebelarm (A) auf die Kurbelwelle (23) und wirken damit in gleicher Weise alternierend auf den Zylinder (6) bzw. die Kolbenstange (7). Bei Verbindung der Treibstange (3) mit dem Gatterrahmen (1) über eine einzelne Achse würde die Mitte der Rahmenhubbewegung einen Kreisbogen gemäß der Kurve (I) beschreiben, beim Absenken des Rahmens von der Sägeblattposition oben (III) über (IV) zur Sägeblattposition unten (V).
Die Bogenhöhe der Kurve (I) bei dieser Abwärtsbewegung beträgt Δ1, die ideale Abwärtsbewegung zeigt die Gerade (II), wobei der Anlenkpunkt zwischen Kurbelwelle (23) und Treibstange (3) um Δ½ links und rechts von der Geraden (II) wandert, um den Schwenkwinkel des Verstellhebels (5) zu minimieren.
Auf diese Weise bleibt der Verschleißbereich der Sägeblätter (24) auf den Steinblock (28) bezogen konstant in der Länge und Lage.
Die automatische Steuerung der Schwenkbewegung des Verstellhebels (5) geschieht über die beiden Näherungsschalter (27.1 und 27.2), die Schaltimpulse auf die beiden Elektromagnetventile (15 und 16) ausüben, sobald der Pendelarm (26) über die vorgesehenen Endpunkte der Hubbewegung hinausgeht. Bewegt sich der Rahmen abwärts, z. B. von der Sägeblattposition (III) auf (IV), würde sich die Pendelbewegung der Pendelarme (26) nach links verlagern. Der Näherungsschalter (27.1) öffnet in diesem Fall das Elektromagnetventil (16), wodurch das Öl von der linken Seite des Kolbens auf dessen rechte Seite gedrückt wird, wenn die Treibstangenkraft (T) nach links wirkt und dadurch den Verstellhebel (5) gegen den Uhrzeigersinn dreht. Geht der Pendelarm (26) zu weit nach rechts, läuft dieser Prozess in entgegengesetzter Richtung durch Öffnen des Elektromagnetventils (15) mittels Näherungsschalter (27.2).Figure 1 shows the overall view of the machine according to the invention with the frame (1), in which the saw blades (24) are arranged and which is connected to the frame machine (25) via pendulum arms (26). The gate frame (1) is driven via the drive rod (3) with the stroke length twice R, the drive rod (3) being connected to the gate frame (1) via the crankshaft (23), and the crankshaft (23) in turn with the Adjusting lever (5), which in turn is connected to the adjusting cylinder (6) or its piston rod (7), the other end of the adjusting cylinder (6) being pivotally mounted on the drive rod (3) via the cylinder holder (9). The alternating forces in the drive rod (T) act on the lever arm (A) on the crankshaft (23) and thus act alternately on the cylinder (6) or the piston rod (7). When connecting the drive rod (3) with the gate frame (1) via a single axis, the center of the frame lifting movement would describe an arc according to curve (I) when lowering the Frame from the saw blade position above (III) via (IV) to the saw blade position below (V).
The arc height of the curve (I) in this downward movement is Δ1, the ideal downward movement shows the straight line (II), the articulation point between the crankshaft (23) and drive rod (3) moving by Δ½ to the left and right of the straight line (II) to minimize the swivel angle of the adjustment lever (5).
In this way, the wear area of the saw blades (24) relative to the stone block (28) remains constant in length and position.
The automatic control of the pivoting movement of the adjusting lever (5) takes place via the two proximity switches (27.1 and 27.2), which exert switching impulses on the two electromagnetic valves (15 and 16) as soon as the pendulum arm (26) goes beyond the intended end points of the lifting movement. If the frame moves down, e.g. B. from the blade position (III) to (IV), the pendulum movement of the pendulum arms (26) would shift to the left. In this case, the proximity switch (27.1) opens the solenoid valve (16), which pushes the oil from the left side of the piston to its right side when the drive rod force (T) acts to the left and thereby the adjusting lever (5) counterclockwise turns. If the pendulum arm (26) goes too far to the right, this process runs in the opposite direction by opening the electromagnetic valve (15) using a proximity switch (27.2).

BezugszeichenlisteReference symbol list

11
GatterrahmenGate frame
33rd
TreibstangeConnecting rod
55
Hebellever
66
Zylindercylinder
77
KolbenstangePiston rod
99
ZylinderhalterungCylinder holder
1313
Rückschlagventilcheck valve
1414
Rückschlagventilcheck valve
1515
SperrventilCheck valve
1616
SperrventilCheck valve
2121
DrosselventilThrottle valve
2222
DrosselventilThrottle valve
2323
Kurbelwellecrankshaft
2424th
SägeblattSaw blade
2525th
GattermaschineGate machine
2626
PendelarmPendulum arm
27.127.1
NäherungschalterProximity switch
27.227.2
Näherungsschalterproximity switch
2828
SteinblockStone block
II.
KurveCurve
IIII
GeradeJust
IIIIII
Sägeblattposition obenSaw blade position at the top
IVIV
Sägeblattposition MitteSaw blade position in the middle
VV
Sägeblattposition untenBlade position down
Δ1Δ1
Bogenhöhe der Schubstangengelen-Kurve IBow height of the push rod gel curve I
AA
Hebelarm der TreibstangenkraftLever arm of the drive rod force
RR
KurbelradiusCrank radius
TT
TreibstangenkraftEspagnolette force

Claims (6)

1) Horizontalgattermaschine mit einem hin und her gehenden Rahmen, dessen Hubbewegung von einem Kurbeltrieb über eine Treibstange bewirkt wird, dadurch gekennzeichnet, daß die Treibstange (3) mit dem Gatterrahmen (1) über eine Kurbelwelle (23) verbunden ist und an der Kurbelwelle (23) ein Hebelarm (5) befestigt ist, der an seinem freien Ende schwenkbar mit einer Kolbenstange (7) bzw. einem Zylinder (6) verbunden ist, wobei das andere Ende des Zylinders (6) bzw. der Kolbenstange (7) schwenkbar an der Treibstange (3) oder an dem Gatterrahmen (1) befestigt ist und durch Schwenken des Hebels (5) der Mittelpunkt der Hubbewegung des Rahmens (1) mit dem Rahmen senkrecht auf einer Geraden (II) bewegbar ist. 1) Horizontal gate machine with a reciprocating frame, the lifting movement of which is effected by a crank mechanism via a drive rod, characterized in that the drive rod (3) is connected to the gate frame (1) via a crankshaft (23) and on the crankshaft ( 23) a lever arm (5) is attached, which is pivotally connected at its free end to a piston rod (7) or a cylinder (6), the other end of the cylinder (6) or the piston rod (7) being pivoted to the drive rod (3) or on the gate frame (1) and by pivoting the lever (5) the center of the lifting movement of the frame (1) with the frame can be moved vertically on a straight line (II). 2) Horizontalgattermaschine nach Anspruch 1 dadurch gekennzeichnet, daß der Zylinder (6) an seinen beiden axialen Endpunkten mit je zwei parallel geschalteten Sperrventilen (15 und 16) und Drosselventilen (21 und 22) und Rückschlagventilen (13 und 14) verbunden ist, wobei das Rückschlagventil (13) den Ölstrom von der rechten auf die linke Kolbenseite und das Rückschlagventil (14) den Ölstrom von der linken auf die rechte Kolbenseite ermöglicht und durch Öffnen der Sperrventile (15 oder 16) die Kolbenstange (7) und damit der Hebel (5) unter dem Einfluß der Treibstangenkraft (T) verstellbar ist. 2) Horizontal gate machine according to claim 1, characterized in that the cylinder (6) at its two axial end points with two parallel check valves (15 and 16) and throttle valves (21 and 22) and check valves (13 and 14) is connected, the Check valve (13) enables the oil flow from the right to the left piston side and the check valve (14) enables the oil flow from the left to the right piston side and, by opening the check valves (15 or 16), the piston rod (7) and thus the lever (5 ) is adjustable under the influence of the drive rod force (T). 3) Horizontalgattermaschine nach einem oder mehreren der Ansprüche 1 bis 2 dadurch gekennzeichnet, daß die Sperrventile (15 oder 16) durch Näherungsschalter (27.1 oder 27.2) öffenbar sind, wobei die Schaltimpulse durch den Pendelarm (26) oder ein entsprechendes Teil auf dem Gatterrahmen (1) dann ausgelöst werden, wenn der Gatterrahmen (1) über die vorgesehenen Hubendpunkte hinausgeht, die im Abstand des Kurbelradius (R) jeweils links und rechts von der Geraden (II) liegen. 3) Horizontal gate machine according to one or more of claims 1 to 2, characterized in that the check valves (15 or 16) can be opened by proximity switches (27.1 or 27.2), the switching impulses by the pendulum arm (26) or a corresponding part on the gate frame ( 1) are triggered when the gate frame (1) extends beyond the intended stroke end points, which are at the distance of the crank radius (R) to the left and right of the straight line (II). 4) Horizontalgattermaschine nach einem oder mehreren der Ansprüche 1 bis 3 dadurch gekennzeichnet, daß je nach Kontur des Steinblocks (28) die Sperrventile (15 und 16) angesteuert werden können und somit das Hubzentrum entsprechend versetzbar ist. 4) Horizontal gate machine according to one or more of claims 1 to 3, characterized in that, depending on the contour of the stone block (28), the check valves (15 and 16) can be controlled and thus the lifting center can be moved accordingly. 5) Horizontalgattermaschine nach einem oder mehreren der Ansprüche 1 bis 4 dadurch gekennzeichnet, daß der Zylinder (6) zur Dämpfung von Spitzen der Treibstangenkraft (T) mit einem Druckspeicher verbunden ist. 5) Horizontal gate machine according to one or more of claims 1 to 4, characterized in that the cylinder (6) for damping peaks of the drive rod force (T) is connected to a pressure accumulator. 6) Horizontalgattermaschine nach einem oder mehreren der Ansprüche 1 bis 5 dadurch gekennzeichnet, daß der Hebel (5) formschlüssig mit der Treibstange (3) oder mit dem Gatterrahmen (1) spielfrei verbindbar ist mittels eines gabelförmigen Keils, der durch seine Gabelförmigkeit mindestens einen Bereich des Hebels (5) umfaßt und mit seinen beiden Außenlängskanten gegen Ausnehmungen in Halterungen an der Treibstange (3) oder dem Gatterrahmen (1) spielfrei anliegt. 6) Horizontal gate machine according to one or more of claims 1 to 5, characterized in that the lever (5) can be positively connected with the drive rod (3) or with the gate frame (1) without play by means of a fork-shaped wedge, which due to its fork-like shape has at least one area of the lever (5) and with its two outer longitudinal edges against recesses in brackets on the drive rod (3) or the gate frame (1) rests without play.
EP92102823A 1991-02-24 1992-02-20 Horizontal frame saw with automatic adjustment of the crank shaft length Withdrawn EP0501305A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19914105629 DE4105629A1 (en) 1991-02-24 1991-02-24 HORIZONTAL GATE MACHINE WITH AUTOMATIC DRIVE ROD LENGTH CHANGE
DE4105629 1991-02-24

Publications (1)

Publication Number Publication Date
EP0501305A1 true EP0501305A1 (en) 1992-09-02

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ID=6425698

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Application Number Title Priority Date Filing Date
EP92102823A Withdrawn EP0501305A1 (en) 1991-02-24 1992-02-20 Horizontal frame saw with automatic adjustment of the crank shaft length

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EP (1) EP0501305A1 (en)
DE (1) DE4105629A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2492999C1 (en) * 2012-03-05 2013-09-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Рыбинский государственный авиационный технический университет имени П.А. Соловьева" Automatic power-saw bench

Citations (4)

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Publication number Priority date Publication date Assignee Title
GB342927A (en) * 1930-03-04 1931-02-12 Anderson Grice Company Ltd Improvements in stone-working machines
DE640105C (en) * 1936-12-22 Adolf Waldrich Maschf Device for securing the even swinging out of a saw frame moved by means of a crank and push rod
GB643079A (en) * 1946-08-13 1950-09-15 Montedison Spa Improvements in multiple blade sawing machines for marble
DE9102110U1 (en) * 1991-02-24 1991-09-26 Jansen-Herfeld, Röttger, Dipl.-Ing., 5630 Remscheid Horizontal gate machine with automatic drive rod length adjustment

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE640105C (en) * 1936-12-22 Adolf Waldrich Maschf Device for securing the even swinging out of a saw frame moved by means of a crank and push rod
GB342927A (en) * 1930-03-04 1931-02-12 Anderson Grice Company Ltd Improvements in stone-working machines
GB643079A (en) * 1946-08-13 1950-09-15 Montedison Spa Improvements in multiple blade sawing machines for marble
DE9102110U1 (en) * 1991-02-24 1991-09-26 Jansen-Herfeld, Röttger, Dipl.-Ing., 5630 Remscheid Horizontal gate machine with automatic drive rod length adjustment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2492999C1 (en) * 2012-03-05 2013-09-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Рыбинский государственный авиационный технический университет имени П.А. Соловьева" Automatic power-saw bench

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