DE1650910A1 - Chain tensioner - Google Patents

Chain tensioner

Info

Publication number
DE1650910A1
DE1650910A1 DE19671650910 DE1650910A DE1650910A1 DE 1650910 A1 DE1650910 A1 DE 1650910A1 DE 19671650910 DE19671650910 DE 19671650910 DE 1650910 A DE1650910 A DE 1650910A DE 1650910 A1 DE1650910 A1 DE 1650910A1
Authority
DE
Germany
Prior art keywords
clamping piece
frame
chain tensioner
chain
pawl
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.)
Pending
Application number
DE19671650910
Other languages
German (de)
Inventor
Emil Amereller
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.)
Joh Winklhofer Beteiligungs GmbH and Co KG
Original Assignee
Joh Winklhofer and Soehne GmbH and Co KG
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 Joh Winklhofer and Soehne GmbH and Co KG filed Critical Joh Winklhofer and Soehne GmbH and Co KG
Publication of DE1650910A1 publication Critical patent/DE1650910A1/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H7/0848Means for varying tension of belts, ropes, or chains with means for impeding reverse motion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H2007/0802Actuators for final output members
    • F16H2007/0806Compression coil springs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H7/0848Means for varying tension of belts, ropes, or chains with means for impeding reverse motion
    • F16H2007/0853Ratchets
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H2007/0889Path of movement of the finally actuated member
    • F16H2007/0891Linear path

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Clamps And Clips (AREA)

Description

X e t t o n s p a n n o r 4 Ein bekannter Kettenspanner dieser Art weist ein Zahngesperre auf$ das mit einer In einen Führungezylinder des Spannstücke eingearbeiteten Zabnreihe versehen ist. Durch diese Konstruktion wird die Gleittläche des Führungszylinders und damit die Lebensdauer des Führungezylinders beträchtlich verringert. Dieser Mangel Ist besonders deshalb wesentlichj weil aus wirtschaftlichen Figur 5 zeigt den Kettenspanner nach Figur 4 im Schnitt -V- Vg Figur 6 zeigt einen dritten erfindungsgemäßen Kettenspanner In Seitenansicht, Figur 7 zeigt den Kettenspanner nach Figur 6 im Schnitt VI:-VIL. stützt sich an einem gestellfesten Widerlager 14 ab. Die Klinke -3 weist im Bereich des Spannstücks ein sich in Bewegungsrichtung des Spannstücks 2 erstreckendes Langloch _3a auf, das von einem am Spannstück 2 befindlichen Stift 4 durchsetzt ist. Hierdurch ist eine geringe Verschiebung des Spannstücks 2 relativ zur Klinke 3 in Bewegungsrichtung des Spannstücks 2 möglich. Bei der Ausführungsform nach den Figuren 1 bis 5 ist der Kolben lo als Hohlkolben aus'ebildet, dessen zylindrischer 9 Innenraum die sich am Gestell 1 abstUtzende Feder 9 aufnimmt. X ett o ns p ann o r 4 A known chain tensioner of this type has a toothed lock which is provided with a row of teeth worked into a guide cylinder of the tensioning piece. This construction considerably reduces the sliding surface of the guide cylinder and thus the service life of the guide cylinder. This deficiency is particularly important because of economic reasons Figure 5 shows the chain tensioner according to Figure 4 in section -V- Vg Figure 6 shows a third chain tensioner according to the invention in side view, Figure 7 shows the chain tensioner according to Figure 6 in section VI: -VIL. is supported on an abutment 14 that is fixed to the frame. In the area of the clamping piece, the pawl -3 has an elongated hole _3a which extends in the direction of movement of the clamping piece 2 and is penetrated by a pin 4 located on the clamping piece 2. As a result, a slight displacement of the clamping piece 2 relative to the pawl 3 in the direction of movement of the clamping piece 2 is possible. In the embodiment according to FIGS. 1 to 5 , the piston 10 is designed as a hollow piston, the cylindrical 9 interior of which receives the spring 9 supported on the frame 1 .

Die Stirnfläche des Kolbens lo der Ausführungsform nach Figur 1 bis _3 weist eine Düse 16 zum Austritt des hydraulischen Druckmittels auf; durch das aus der Düse 16 austretende hydraulische Druckmittel wird das Spannstück 2 geschmiert.The end face of the piston lo of the embodiment according to Figure 1 to _3 has a nozzle 16 for the outlet of the hydraulic pressure medium; the clamping piece 2 is lubricated by the hydraulic pressure medium emerging from the nozzle 16.

Bei der Ausführungsform nach Figur 4 und 5 ist das Spärmstück 2 als hebelförmiger Bügel ausgebildetg der an einem am Gestell 1 befindlichen Arm 11 mittels eines Bolzens 17 gelagert ist.In the embodiment according to FIGS. 4 and 5 , the spar piece 2 is designed as a lever-shaped bracket which is mounted on an arm 11 located on the frame 1 by means of a bolt 17 .

Bei der Ausführungsform nach den Figuren 6 und 7 ist das Gestell 1 durch einen einfachen Blechbügel gebildet, der an einem Fortsatz 18 einen Bolzen 19 trägtg um den ein das Spannstück 2 tragender Winkelhebel 2o schwenkbar gelagert ist. An den kürzeren Arm 21 dieses Winkelhebels 2o greift die Feder 9 an, deren anderes Ende am Gestell 1 verankert ist und-somit das S#annstück 2 gegen die Kette K drückt.In the embodiment according to FIGS. 6 and 7 , the frame 1 is formed by a simple sheet metal bracket which on an extension 18 carries a bolt 19 around which an angle lever 2o carrying the clamping piece 2 is pivotably mounted. The spring 9 , the other end of which is anchored on the frame 1 and thus presses the S # annstück 2 against the chain K, acts on the shorter arm 21 of this angle lever 2o.

In allen Ausführungsbeispielen liegt die eine Seite der Zahnreihe 5 auf einer festen Unterlage3 nämlich einer Fläche des Gestells 1. Die andere Seite der Zahnreihe 5 ist mit einer Abdeckung 7 versehen$ die der Klinke eine Führung gibt.In all the exemplary embodiments, one side of the row of teeth 5 lies on a solid base 3, namely a surface of the frame 1. The other side of the row of teeth 5 is provided with a cover 7 which guides the pawl.

Claims (2)

Patentansprüche 1. Kettenspannerj mit einem gegen eine Kette (K) bewegbaren Spannstück (2), mit einer das Spannstück (2) gegen die Kette (K) drückenden Feder (9) und mit einem zwischen dem SpannstÜck (2) und einem Gestell (1) wirkenden Zahngesperre, das eine Bewegung des Spannstücks (2) von der Kette (K) fort über ein gewisses Maß hinaus unterbindet* eine Bewegung des SpannstUcks (2) zur Kette (K) hin jedoch gestattet, dadurch gekennzeichnet, daß das Zahngesperre durch eine am Gestell (1) befindliche Zahnreihe (5) und eine am Spannstück (2) gelagerte, von einer Feder )6) in die Zahnreihe (5) gedrückte Klinke (3) gebildet ist. Claims 1. Kettenspannerj with a movable against a chain (K) clamping piece (2), with a the clamping piece (2) against the chain (K) urging spring (9) and with a between the clamping piece (2) and a frame (1 ) acting ratchet, which prevents a movement of the clamping piece (2) away from the chain (K) beyond a certain amount is formed (1) located row of teeth (5) and mounted on the clamping piece (2), pushed by a spring) 6) in the row of teeth (5) pawl (3) on the frame. 2. Kettenspa=er nach Anspruch 1, dadurch gekennzeichnet daß die Klinke (,3) um ein begrenztes Maß in Bewegungs"-richtung des Spannstücke (2) versohiebbar am Spannstück (2) gelagert ist,
2. Kettenspa = er according to claim 1, characterized in that the pawl (3, 3) is mounted on the clamping piece (2) so as to be displaceable by a limited amount in the direction of movement of the clamping piece (2),
DE19671650910 1967-09-01 1967-09-01 Chain tensioner Pending DE1650910A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW0044702 1967-09-01

Publications (1)

Publication Number Publication Date
DE1650910A1 true DE1650910A1 (en) 1970-11-05

Family

ID=7604180

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19671650910 Pending DE1650910A1 (en) 1967-09-01 1967-09-01 Chain tensioner

Country Status (1)

Country Link
DE (1) DE1650910A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713043A (en) * 1985-02-26 1987-12-15 Joh. Winklhofer & Sohne Chain tensioner
EP0348861A2 (en) * 1988-07-01 1990-01-03 Eaton Corporation Fluid operated chain belt tensioning device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713043A (en) * 1985-02-26 1987-12-15 Joh. Winklhofer & Sohne Chain tensioner
EP0348861A2 (en) * 1988-07-01 1990-01-03 Eaton Corporation Fluid operated chain belt tensioning device
EP0348861A3 (en) * 1988-07-01 1990-06-13 Eaton Corporation Fluid operated chain belt tensioning device

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