US1765350A - Brake mechanism - Google Patents

Brake mechanism Download PDF

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Publication number
US1765350A
US1765350A US278155A US27815528A US1765350A US 1765350 A US1765350 A US 1765350A US 278155 A US278155 A US 278155A US 27815528 A US27815528 A US 27815528A US 1765350 A US1765350 A US 1765350A
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US
United States
Prior art keywords
shoes
drum
shoe
brake
anchor
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 - Lifetime
Application number
US278155A
Inventor
Adiel Y Dodge
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.)
Bendix Brake Co
Original Assignee
Bendix Brake Co
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
Priority claimed from US742282A external-priority patent/US1705855A/en
Application filed by Bendix Brake Co filed Critical Bendix Brake Co
Priority to US278155A priority Critical patent/US1765350A/en
Application granted granted Critical
Publication of US1765350A publication Critical patent/US1765350A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
    • F16D51/46—Self-tightening brakes with pivoted brake shoes, i.e. the braked member increases the braking action
    • F16D51/48—Self-tightening brakes with pivoted brake shoes, i.e. the braked member increases the braking action with two linked or directly-interacting brake shoes
    • F16D51/50—Self-tightening brakes with pivoted brake shoes, i.e. the braked member increases the braking action with two linked or directly-interacting brake shoes mechanically actuated
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
    • F16D2125/22—Mechanical mechanisms converting rotation to linear movement or vice versa acting transversely to the axis of rotation
    • F16D2125/26—Cranks
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/58—Mechanical mechanisms transmitting linear movement
    • F16D2125/66—Wedges
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/58—Mechanical mechanisms transmitting linear movement
    • F16D2125/68—Lever-link mechanisms, e.g. toggles with change of force ratio

Definitions

  • My invention relates to improved brake mechanism and is embodied in a brake structure comprising a plurality of pivotally connected internal brake shoes supported within 5 a rotatable brake drum to be urged thereagainst in such a manner that one shoe is adapted to energize the other depending upon the direction of rotation of the drum and the shoes are urged against the drum by operating mechanism of a novel character drum in combination with the mechanism em- March 19, 1929.
  • bra adapted to float to adjusted positions during the application of the shoes to the drum.
  • a further object resides in a novel method of supporting shoes to be urged against the In the drawing let 10 indicate a rotatable brake drum within which are mounted two substantially inflexible arcuate brake shoes 12 and 16 pivotally connected bya pivot 14, carried b a link 50 mounted upon a pivot 52 carrie by the backing plate 54.
  • the opposite ends 22 and 26 of the shoes are slotte as at 24 and 28 to receive stationary anchors 18 and 20 carried by the backing plate. These anchors serve to anchor the shoes depending upon the direction of rotation of the drum.
  • anchor 20 engages shoe 16 to anchor the shoes therein and shoe 12 travels over its anchor 18 urging the shoe 16 against the drum.
  • the shoes anchor upon the member 18 in a similar manner.
  • Shoe 12 is provided at its extreme free end with a bearing roller 30 and shoe 16 is provided at its extreme free end with a bearing roller 32.
  • the spring 48 tensions the shoes ,282, filed October toward each other. able stop device.
  • a floating wedge member 34 pivotally supported at 36 upon.
  • a bell crank lever 38 mounted upon a pivot 40 carried by the backing plateand having its opposite arm 42 pivotally connected at 44 to a link 46 whereby the wedge member is moved between the shoes bearing against the rollers 30 and 32 to urge the shoes outwardly against the drum.
  • This wedge member is adapted to travel over the anchored shoe urging the unanchored shoe outwardly.
  • Brake mechanism comprising, in combination with a rotatable brake drum, sub stantially inflexible brake shoes pivotally connected one to another said shoes arranged. within the drum and having spaced apart 58 represenm an adjustfree separable slotted ends, an anchor arranged within each slotted end to take the torque of the adjacent shoe when the drum is turned in one direction, said shoe adapted to travel over said anchor when the drum is turned in the opposite direction to urge the anchored shoe a ainst the drum, operating mechanism inclu ing a floating wedge adapted to be urged between the free ends of said shoes and a pivotally supported link carrying at its free end the pivotal connection for said shoes, said link together with the anchors providing a three-point support for the brake shoes.

Description

June 17, 1930. A. Y. DODGE v BRAKE MECHANISM Original Filed Oct. 8, 1924 INVENTOR ATTOR N EYS Patented June 17, 1930 aura " waste ADIEL Y. DODGE, 93 SOUTH BEND,
INDIANA, ASSIGNOR T BENDIX BE COEPANY,
A conronsrron on rumors 3am renown:
original application filed October 8, 1924, Serial No. 742,282. Divided and. this application filed May 1928. Serial No. 278,155.
My invention relates to improved brake mechanism and is embodied in a brake structure comprising a plurality of pivotally connected internal brake shoes supported within 5 a rotatable brake drum to be urged thereagainst in such a manner that one shoe is adapted to energize the other depending upon the direction of rotation of the drum and the shoes are urged against the drum by operating mechanism of a novel character drum in combination with the mechanism em- March 19, 1929.
' a bra adapted to float to adjusted positions during the application of the shoes to the drum.
A further object resides in a novel method of supporting shoes to be urged against the In the drawing let 10 indicate a rotatable brake drum within which are mounted two substantially inflexible arcuate brake shoes 12 and 16 pivotally connected bya pivot 14, carried b a link 50 mounted upon a pivot 52 carrie by the backing plate 54.
The opposite ends 22 and 26 of the shoes are slotte as at 24 and 28 to receive stationary anchors 18 and 20 carried by the backing plate. These anchors serve to anchor the shoes depending upon the direction of rotation of the drum. When the drum is rotating in a clockwise direction, anchor 20 engages shoe 16 to anchor the shoes therein and shoe 12 travels over its anchor 18 urging the shoe 16 against the drum. When the drum is traveling in the opposite direction the shoes anchor upon the member 18 in a similar manner.
Shoe 12 is provided at its extreme free end with a bearing roller 30 and shoe 16 is provided at its extreme free end with a bearing roller 32. The spring 48 tensions the shoes ,282, filed October toward each other. able stop device.
To operate the shoes I provide a floating wedge member 34 pivotally supported at 36 upon. a bell crank lever 38 mounted upon a pivot 40 carried by the backing plateand having its opposite arm 42 pivotally connected at 44 to a link 46 whereby the wedge member is moved between the shoes bearing against the rollers 30 and 32 to urge the shoes outwardly against the drum. This wedge member is adapted to travel over the anchored shoe urging the unanchored shoe outwardly.
What I claim is: Brake mechanism comprising, in combination with a rotatable brake drum, sub stantially inflexible brake shoes pivotally connected one to another said shoes arranged. within the drum and having spaced apart 58 represenm an adjustfree separable slotted ends, an anchor arranged within each slotted end to take the torque of the adjacent shoe when the drum is turned in one direction, said shoe adapted to travel over said anchor when the drum is turned in the opposite direction to urge the anchored shoe a ainst the drum, operating mechanism inclu ing a floating wedge adapted to be urged between the free ends of said shoes and a pivotally supported link carrying at its free end the pivotal connection for said shoes, said link together with the anchors providing a three-point support for the brake shoes.
In testimony whereof I, AnmL Y. DODGE, sign this specification.
ADIEL Y. DODGE.
US278155A 1924-10-08 1928-05-16 Brake mechanism Expired - Lifetime US1765350A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US278155A US1765350A (en) 1924-10-08 1928-05-16 Brake mechanism

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US742282A US1705855A (en) 1924-10-08 1924-10-08 Brake construction
US278155A US1765350A (en) 1924-10-08 1928-05-16 Brake mechanism

Publications (1)

Publication Number Publication Date
US1765350A true US1765350A (en) 1930-06-17

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Family Applications (1)

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US278155A Expired - Lifetime US1765350A (en) 1924-10-08 1928-05-16 Brake mechanism

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