GB787761A - An improved crank mechanism - Google Patents

An improved crank mechanism

Info

Publication number
GB787761A
GB787761A GB1898955A GB1898955A GB787761A GB 787761 A GB787761 A GB 787761A GB 1898955 A GB1898955 A GB 1898955A GB 1898955 A GB1898955 A GB 1898955A GB 787761 A GB787761 A GB 787761A
Authority
GB
United Kingdom
Prior art keywords
toggle
crank
gears
gear
rod
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.)
Expired
Application number
GB1898955A
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 GB1898955A priority Critical patent/GB787761A/en
Publication of GB787761A publication Critical patent/GB787761A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16H—GEARING
    • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
    • F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
    • F16H21/16—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and reciprocating motion
    • F16H21/18—Crank gearings; Eccentric gearings
    • F16H21/22—Crank gearings; Eccentric gearings with one connecting-rod and one guided slide to each crank or eccentric
    • F16H21/30—Crank gearings; Eccentric gearings with one connecting-rod and one guided slide to each crank or eccentric with members having rolling contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/10—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism
    • B30B1/14—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by toggle mechanism operated by cams, eccentrics, or cranks

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

787,761. Toggle presses. GOLDING, W. F. July 2, 1956 [June 30, 1955], No. 18989/55. Class 87(2). [Also in Group XXIV] A crank mechanism for a toggle-actuated press comprises four gears 15 secured to a driving shaft 11, each gear 15 meshing a gear 16 having at least one hub 17 supported in a journal-type bearing 18 and a single crank pin in the form of a rod 19 extending through all four gears 16. The arrangement is such that when the mechanism is under load, the crank formed by the rod 19 and gears 16 is not subjected to torque. The shaft 11 is driven from an electric motor 12 through belt reduction gearing 13, and a worm gear 14. Connecting rods 20 on the crank 19 are mounted on pivot pins 9 joining the upper and lower arms 7, 8 of a toggle 5 between a fixed base 4 and a vertically movable platen 3. A toothed sector 21 on the toggle arm 8 meshes a correspondingly toothed sector 22 on the lower arm of another toggle 6, thereby constrained to move simultaneously with the toggle 5. Reciprocation of the connecting rod 20 thus raises and lowers the platen 3 of the press with respect to an upper fixed platen 1.
GB1898955A 1955-06-30 1955-06-30 An improved crank mechanism Expired GB787761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1898955A GB787761A (en) 1955-06-30 1955-06-30 An improved crank mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1898955A GB787761A (en) 1955-06-30 1955-06-30 An improved crank mechanism

Publications (1)

Publication Number Publication Date
GB787761A true GB787761A (en) 1957-12-18

Family

ID=10121887

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1898955A Expired GB787761A (en) 1955-06-30 1955-06-30 An improved crank mechanism

Country Status (1)

Country Link
GB (1) GB787761A (en)

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