DE1188888B - Valve spring tensioner - Google Patents

Valve spring tensioner

Info

Publication number
DE1188888B
DE1188888B DESCH26798A DESC026798A DE1188888B DE 1188888 B DE1188888 B DE 1188888B DE SCH26798 A DESCH26798 A DE SCH26798A DE SC026798 A DESC026798 A DE SC026798A DE 1188888 B DE1188888 B DE 1188888B
Authority
DE
Germany
Prior art keywords
bracket
levers
articulated
valve spring
pair
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
DESCH26798A
Other languages
German (de)
Inventor
Karl Scharfenberg
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
Priority to DESCH26798A priority Critical patent/DE1188888B/en
Publication of DE1188888B publication Critical patent/DE1188888B/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/24—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same mounting or demounting valves
    • B25B27/26—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same mounting or demounting valves compressing the springs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)

Description

Ventilfeder-Spannapparat Die Erfindung bezieht sich auf einen Ventilfeder-Spannapparat mit einem Bügel, an dessen einem Ende der Betätigungshebel gelagert ist und dessen anderes Ende das Widerlager für die zu spannende Feder trägt, und bezweckt, die Kraft vom Betätigungshebel auf die Spannfeder in möglichst günstiger Weise zu übertragen. Wie das erreicht wird, ist in der Zeichnung an einem Ausführungsbeispiel der Erfindung dargestellt. Es zeigt A b b.1 den Ventilfeder-Spannapparat in Funktion, A b b. 2 denselben in der Vorderansicht und A b b. 3 einen Schnitt nach Linie A-A gemäß Abb. 1.Valve Spring Tensioner The invention relates to a valve spring tensioner with a bracket, at one end of which the operating lever is mounted and the the other end carries the abutment for the spring to be tensioned, and the purpose is that To transmit force from the operating lever to the tension spring in the most favorable manner possible. How this is achieved is shown in the drawing using an exemplary embodiment of the invention shown. It shows A b b.1 the valve spring tensioning device in operation, A b b. 2 the same in the front view and A b b. 3 a section along line A-A according to Fig. 1.

Gemäß der Zeichnung ist 1, 1 a ein Doppelbügel, an welchem bei 2 und 3 die kraftübertragenden Schubhebel4 und 5 aasgelenkt sind, die andererseits bei 17 und 19 mit der die Spindel 13, 15, 16 tragenden Lasche 12 gelenkig verbunden sind. 6, 7 ist der mit Griff versehene Spannhebel, der bei 25 mit dem Doppelbügel 1,1a gelenkig verbunden ist. 8 und 8a ist ein Hebelpaar, das einerseits bei 9 mit dem Spannhebel 6 und andererseits bei 10 mit einem zweiten Hebelpaar 11,11a gelenkig verbunden ist, wobei das letztere bei 18 an der die Spannspindel tragenden Lasche 12 aasgelenkt ist. Die Spannspindel 16,13,15 ist zwecks ihrer Längsverstellung in der feststehenden Mutter 14 geführt. An dem anderen Ende des Doppelbügels 1,1a ist eine doppelschenklige Kralle 20, 24 fest angeordnet, deren Krallenenden durch die Flügelschraube 21 zusammengezogen bzw. gespreizt werden können. 22 ist ein Ventilschaft, und 23 ist eine gespannte Ventilfeder.According to the drawing, 1, 1 a is a double bracket on which the force-transmitting thrust levers 4 and 5 are articulated at 2 and 3, which on the other hand are articulated at 17 and 19 with the bracket 12 carrying the spindle 13, 15, 16. 6, 7 is the tensioning lever provided with a handle, which is articulated at 25 to the double bracket 1,1a. 8 and 8a is a pair of levers which is articulated on the one hand at 9 with the clamping lever 6 and on the other hand at 10 with a second pair of levers 11, 11a, the latter being articulated at 18 on the bracket 12 carrying the clamping spindle. The clamping spindle 16, 13, 15 is guided in the fixed nut 14 for the purpose of its longitudinal adjustment. At the other end of the double bracket 1, 1 a, a double-legged claw 20, 24 is fixedly arranged, the claw ends of which can be pulled together or spread apart by the wing screw 21. 22 is a valve stem and 23 is a cocked valve spring.

Wie ohne weiteres zu erkennen, wird durch die symmetrische Ausbildung der Hebel und Gelenke vermieden, daß zusätzliche Biegemomente an den Gelenken entstehen. Vor allem wird der eine am Bügel aasgelenkte Hebel 4, der auf Biegung beansprucht ist, durch keine Bohrung geschwächt.As can be seen without further ado, is due to the symmetrical training the lever and joints avoided that additional bending moments arise at the joints. Above all, the one on the bracket aasgelenkte lever 4, which is subject to bending is not weakened by any drilling.

Claims (1)

Patentanspruch: Ventilfeder-Spannapparat mit einem Bügel, an dessen einem Ende der Betätigungshebel gelagert ist und dessen anderes Ende das Widerlager für die zu spannende Feder trägt, g e k e n n z e i c h -n e t d u r c h die Vereinigung folgender Merkmale: a) Die Spannspindel (13) ist durch eine Lasche (12) gehalten, die durch ein Paar durch je einen zweischnittigen Bolzen (2, 3) am Bügel (1,1a) aasgelenkter Hebel (4, 5) etwa nach Art einer Parallelogrammführung mit dem Bügel verbunden ist. b) Ein am Betätigungshebel (6,7) durch einen zweischnittigen Bolzen (9) aasgelenktes Hebelpaar (8,8a) und ein an der Lasche (12) durch einen zweischnittigen Bolzen (18) aasgelenktes weiteres Hebelpaar (11, 11a) sind durch einen Bolzen verbunden, der auf dem einen (4) der beiden die Spannspindel führenden, ungeschwächt durchgehenden Hebel aufliegt. In Betracht gezogene Druckschriften: _ _ Französische Patentschrift Nr. 968 800; USA.-Patentschrift Nr. 2 691210.Claim: Valve spring tensioning device with a bracket, at one end of which the actuating lever is mounted and the other end of which carries the abutment for the spring to be tensioned, characterized by the combination of the following features: a) The tensioning spindle (13) is secured by a bracket ( 12), which is connected by a pair of levers (4, 5) articulated to the bracket (1,1a) by a two-cut bolt (2, 3) each, approximately in the manner of a parallelogram guide with the bracket. b) A pair of levers (8,8a) articulated on the actuating lever (6,7) by a two-shear bolt (9) and a further pair of levers (11, 11a) articulated on the bracket (12) by a two-shear bolt (18) are by a Bolt connected, which rests on one (4) of the two levers that guide the clamping spindle and are not weakened. Documents considered: _ _ French Patent No. 968 800; U.S. Patent No. 2,691,210.
DESCH26798A 1959-10-08 1959-10-08 Valve spring tensioner Pending DE1188888B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH26798A DE1188888B (en) 1959-10-08 1959-10-08 Valve spring tensioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH26798A DE1188888B (en) 1959-10-08 1959-10-08 Valve spring tensioner

Publications (1)

Publication Number Publication Date
DE1188888B true DE1188888B (en) 1965-03-11

Family

ID=7430565

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH26798A Pending DE1188888B (en) 1959-10-08 1959-10-08 Valve spring tensioner

Country Status (1)

Country Link
DE (1) DE1188888B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4976280A (en) * 1990-01-31 1990-12-11 Robert Lagana Valve spring compression tool

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR968800A (en) * 1948-06-30 1950-12-05 Closing device
US2691210A (en) * 1948-05-22 1954-10-12 Sunnen Joseph Valve remover

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691210A (en) * 1948-05-22 1954-10-12 Sunnen Joseph Valve remover
FR968800A (en) * 1948-06-30 1950-12-05 Closing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4976280A (en) * 1990-01-31 1990-12-11 Robert Lagana Valve spring compression tool

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