US3387716A - Car coupler anti-creep mechanism - Google Patents

Car coupler anti-creep mechanism Download PDF

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Publication number
US3387716A
US3387716A US530281A US53028166A US3387716A US 3387716 A US3387716 A US 3387716A US 530281 A US530281 A US 530281A US 53028166 A US53028166 A US 53028166A US 3387716 A US3387716 A US 3387716A
Authority
US
United States
Prior art keywords
coupler
lock
creep
arm
head
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
US530281A
Other languages
English (en)
Inventor
Penti Kenneth L De
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.)
Thales SA
Midland Ross Corp
National Casting Inc
Original Assignee
Midland Ross Corp
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 Midland Ross Corp filed Critical Midland Ross Corp
Priority to US530281A priority Critical patent/US3387716A/en
Priority to GB5031/67A priority patent/GB1126839A/en
Priority to DE1605184A priority patent/DE1605184C3/de
Priority to NL676702247A priority patent/NL148839B/xx
Priority to SE2254/67A priority patent/SE325046B/xx
Priority to CH248667A priority patent/CH452585A/de
Priority to FR96221A priority patent/FR1512232A/fr
Priority to LU53068D priority patent/LU53068A1/xx
Priority to BE694648D priority patent/BE694648A/xx
Priority to AT192267A priority patent/AT271561B/de
Priority to ES337349A priority patent/ES337349A1/es
Application granted granted Critical
Publication of US3387716A publication Critical patent/US3387716A/en
Anticipated expiration legal-status Critical
Assigned to THOMSON-CSF reassignment THOMSON-CSF ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FRAPPE, GERARD, ORTALLI, PATRICE
Assigned to CONGRESS FINANCIAL CORPORATION reassignment CONGRESS FINANCIAL CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NATIONAL CASTINGS INC., A DE CORP.
Assigned to NATIONAL CASTINGS INC., A CORP. OF DE reassignment NATIONAL CASTINGS INC., A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: NATIONAL CASTINGS INC., A CORP. OF IL
Assigned to NATIONAL CASTINGS INC. A CORP. OF DE reassignment NATIONAL CASTINGS INC. A CORP. OF DE RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: CONGRESS FINANCIAL CORPORATION (CENTRAL)
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G3/00—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements
    • B61G3/16—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling heads rigidly connected by rotatable hook plates or discs and balancing links, the coupling members forming a parallelogram, e.g. "Scharfenberg" type
    • B61G3/18—Locking devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G3/00—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements
    • B61G3/10—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling heads in the form of hook-like interengaging rigid jaws, e.g. "Willison" type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/09—Pre-expansion of foamed polystyrene

Definitions

  • This invention relates to fixed-jaw or Willison type couplers having mechanism for effecting what is known in the art as lock-set condition, and for maintaining the lock in locked position in opposition to unwanted unlocking forces.
  • coupler under present consideration is further identified by an anti-creep element pivotally mounted on the lock and having a rear arm arranged to engage a rearward transverse wall of the coupler head when required to prevent a rearward movement of the lock out of locking or coupling position.
  • an anti-creep element pivotally mounted on the lock and having a rear arm arranged to engage a rearward transverse wall of the coupler head when required to prevent a rearward movement of the lock out of locking or coupling position.
  • the primary object of this invention is to provide highly dependable mechanism for preventing unintended movement of the lock out of locking position in a coupler of the type in which the element which prevents its movement is carried on the lock and arranged to include the rearward transverse wall of the coupler.
  • a fixed-jaw coupler comprising, as components known to the prior art, a head having a cavity, a rolling type lock having pivotal connection with the head in a lower rear portion thereof, a lock-set piece supported on a trunnion fixed in the head in lateral juxtaposition with the lock, an anti-creep element pivotally supported on a transversely extending trunnion of the lock for engaging a rearward transverse wall, such as a rear head wall, and a rotor having a cam member for operating the lock, the lock-set piece, and
  • a front arm of the element and the cam member are structurally related to enable such member to function as a stop for limiting the downward movement of the front arm to a level positioning the rear arm immediately to the front of the concavity at the lowest forward position of the member.
  • the other function of the cam member relative to the anti-creep element is to rotatably engage the front arm to carry it upward and thus rotate the rear arm to a lower position for passing through the opening.
  • the lock-throwing surface of the cam member is that which stops, as well as actuates the anti-creep element.
  • the front surface of the transverse wall adjacent the rearward wall area may be smooth and free of obstruction, such as structure overhanging the rear arm of the element.
  • FIG. 1 is an exploded perspective view of a coupler in accordance with the single embodiment herein described;
  • FIG. 2 is a fragmentary side elevation in section illustrating a prior art coupler as a basis of comparison for the present invention
  • FIGS. 3, 4, 5, and 7 are fragmentary side elevations in section of the coupler illustrated in FIG. 1, showing the coupler in uncoupled (FIG. 3), coupled with anticreep mechanism engaged (FIG. 4), normally coupled (FIG. 5), and lock-set (FIG. 7) conditions, respectively; and
  • FIG. 6 is a fragmentary elevation in section of the coupler head, with all parts removed taken along line VIVI of FIG. 3.
  • the components of the coupler in accordance with the invention consists of, as shown clearly in FIG. 1, a coupler head 5, a lock 6, a rotor comprising a shaft 7 and a thrower or cam member 8, an anti-creep element 9, a lock-set piece 10, and an indicator 11 for indicating the operating condition of the coupler.
  • the counterparts of these pieces are found in the prior art coupler illustrated in FIG. 2 in which the lock, lock-set piece, and the indicator may be identical with those found in the coupler of FIGS. 1 and 3 to 7.
  • the lock 6 is received in the cavity of the head 5 with a tooth '15 thereof received in opening 16 of the head.
  • the lock has a recess 17 on its far side, as shown in FIG. 1 in a lower part of which the cam member 8 is supported by the rotor shaft 7 on section 19 thereof. This section is received in an opening 21 of the member 8 and a side wall bearing of the coupler head not shown.
  • the lock recess 17 also receives a major portion, especially the front arm 22, of the anti-creep element 9.
  • the element 9 has an opening 23 enabling it to be pivotally mounted on a trunnion 24 of the lock with respect to which the front arm 22 and a rear arm 26 of the element 9 extend forwardly and rearwardly, respectively.
  • the element 9 is supported above the cam member 8 within the vertical plane containing the member.
  • the vertical dimensions of the front arm 22 of the anti-creep element and the cam member 8 are such as to enable the front arm to rest on an upper cam surface 28 at the coupled condition of the coupler shown in FIGS. 4 and 5.
  • the rear terminus 29 of the element is positioned in. front juxtaposition with an area 31 of a rearward transverse wall of the coupler, i.e., the rear wall 32.
  • Area 3f defines a cavity 34 which indents rearwarclly with respect to other portions of the area 31, particularly with respect to the lower extremity or edge 35 of the area 31 occurring along an upper portion of the periphery of an opening 36 extending rearwardly into the shank of the coupler.
  • the concavity has an upper section 38 and a lower section 39.
  • Cavity section 38 is preferably as large as the end surface 41 of the rear arm 26 so that it may serve as the usual abutment surface for the rear arm when element 9 is positioned against the cam member 8 and thus positioned for holding the lock forward in its coupler-coupled position.
  • the lower section 39 of the cavity 34 serves as a gathering or guide surface aiding the element 9 in reaching its normal abutting relation with the section 38 on occasions when the anti-creep mechanism is brought into play.
  • the element 9 will tend to oscillate on its axis with some danger of the rear arm 26 entering the opening 36.
  • Section 39 of the concavity tends to entrap the rear terminus 29 of the arm 26 above the upper periphery of the opening 36.
  • the lower extremity 35 of the concavity section 39 must be cleared by the terminus 29 as the element is rotated to drop its rear arm into alignment with the opening 36. At the forwardmost position of the lock, as shown in FIG.
  • the rear terminus of the element 9 is separated from the concavity section 38 by a gap or clearance 44 disposing the end surface 41 of the element within a radius measured between the axis 24b of the trunnion 24 and the surface edge 35.
  • the arm 26, when rotated downwardly to the position indicated in FIG. 3, passes the edge 35 without restriction.
  • the end surface 41 and the concavity section 38 extend downwardly and rearwardly and are cantered rearwardly with respect to the general plane of the wall 32, these surfaces are approximately tangent with respect to radii extending from the axis 24b. This is a consequence of the concavity 34, especially the section 38, being at a higher level in the coupler than the axis 24b, and the rear wall 32 being nearly vertical, or at least more vertical than section 38.
  • Tilting of the anti-creep element 9 to lower and align its rear arm 26 with the opening 36 is accomplished in two ways, depending upon the condition of the coupler to be assumed.
  • the lock In the uncoupled or pre-coupled position, as illustrated in FIG. 3, the lock is in its forwardmost position but the lock-set piece 10 is free to tilt forward in the absence of an opposed coupler bearing on the front pad 46 of the look-set piece. Under this condition a laterally extending lug 47 of the lock-set piece bears on the top surface 48 of the element 9 to carry the arm 26 out of confronting relation with the concavity 34.
  • the lock-set piece It tilts about a trunnion 49 provided for its support as an integral portion of the head.
  • the anti-creep element 9 is rotatable from the position shown in FIG. by clockwise movement of the thrower or cam member 8 as the member is rotated by the shaft 7 during an uncoupling operation. It may be observed that the cam surface is already in engagement with the undersurface 51 of the front arm 26 of the element 9 at coupled position.
  • the coupler components are readily shifted from the condition of FIG. 5 to the condition of FIG. 7 by sufiicient rotation (counterclockwise in FIG. 7) of the cam member 8.
  • the cam member surface 28 first lifts the front arm of the anti-creep element to shift the rear arm in alignment with the opening 36 and while maintaining the element in its consequently rotated position, the member 3 engages a cam following surface 53 of the lock, and as the member 8 rotates further rearwardly, carries the lock eventually to a position at least as far rearwardly as that shown in FIG. 7.
  • the lock-set piece has been lifted in a vertical direction by a laterally extending lifting lug 54 which initially engages an under-surface 55 of the lock-set piece and continues to lift it until it passes under the corner surface 56.
  • Lock-set condition is, of course, maintained as long as an opposing coupler is in contact with the pad 46 of the lock-set piece. However, as soon as the opposing coupler is withdrawn from the coupler shown, the lockset piece will tilt forward, as shown in FIG. 3, and the other internal parts of the coupler will also assume the position shown in FIG. 3.
  • coupler may be taken out of lock-set condition by lifting on a handle 61 which protrudes in a lateral direction through an opening 62 in the side wall 63 of the coupler.
  • the forward or rearward position of the lock may be known through the position of an externally visible indicator 64 in pivotal relation with the coupler head and engageable relation with the arm 26 of the element 9.
  • a fixed jaw car coupler which comprises:
  • a head having a cavity and a rear wall, a lock housed in said cavity having a lower rearward portion in pivotal connection with a lower rearward portion of the head, a coupler-operating rotor having an axis of rotation in transverse fixed relation with said head, a lock-set piece pivotally supported by the head in lateral juxtaposition with the lock, an anti-creep element pivotally supported by the lock in lateral juxtaposition therewith, the element having a rear arm and a front arm heavier than the rear arm extending in generally opposite directions from the pivot axis of the element, said rear arm extending rearwardly when said element is disposed in its operative horizontal lock-arresting position into front proximity with a front-facing area of said rear wall, means on said rotor and said lock-set piece limiting movement of said rear arm upwardly relative to said area, said wall having an opening below said area for receiving said rear arm in a condition of the coupler in which the lock is disposed rearwardly of its forward coupling position and said rear arm is disposed
  • said area has its lower extremity at the upper periphery ass-2,715
  • said terminus at the coupling position of the lock, is spaced with respect to said transverse wall so as to be rotatably free thereof;
  • said means limits upward movement of said rear arm to an extent maintaining vertically overlapping relation of said terminus with said area.
  • said coupler-operating rotor has a cam member (having an axis of rotation in transverse fixed relation with head);
  • the coupler has means positioning said carn member generally frontwardly of its axis at locking or coupled condition of the coupler in which condition said member has an upward facing surface in proximate engageable relation with said front arm and partially constitutes said limiting means.
  • a stop lug extends laterally from the side of the lock-' set piece nearer said element into overhanging relation with the element at a level enabling the front arm to engage said cam member when said lock-set piece engages an opposing coupler coupled with said coupler.
  • said area is disposed at a level generally above that of the axis of rotation of the element
  • an upper portion of the concavity and the end surface of the rear arm are approximately tangent to radii thereof with respect to said axis.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Clamps And Clips (AREA)
  • Mechanical Operated Clutches (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
US530281A 1966-02-28 1966-02-28 Car coupler anti-creep mechanism Expired - Lifetime US3387716A (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
US530281A US3387716A (en) 1966-02-28 1966-02-28 Car coupler anti-creep mechanism
GB5031/67A GB1126839A (en) 1966-02-28 1967-02-02 Fixed jaw railway vehicle coupler
DE1605184A DE1605184C3 (de) 1966-02-28 1967-02-14 Selbsttätige Klauenkupplung für Eisenbahnfahrzeuge
NL676702247A NL148839B (nl) 1966-02-28 1967-02-14 Spoorwagenkoppeling van het type met een vaste klauw, met voorziening om ondanks stoten de gekoppelde toestand te handhaven.
SE2254/67A SE325046B (xx) 1966-02-28 1967-02-17
CH248667A CH452585A (de) 1966-02-28 1967-02-20 Automatische Klauenkupplung für Eisenbahnfahrzeuge
FR96221A FR1512232A (fr) 1966-02-28 1967-02-23 Attelage de wagon de chemin de fer à mâchoire fixe
LU53068D LU53068A1 (xx) 1966-02-28 1967-02-24
BE694648D BE694648A (xx) 1966-02-28 1967-02-27
AT192267A AT271561B (de) 1966-02-28 1967-02-27 Starre Klauenkupplung
ES337349A ES337349A1 (es) 1966-02-28 1967-02-28 Perfeccionamientos en la construccion de acopladores de mordaza para vehiculos ferroviarios.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US530281A US3387716A (en) 1966-02-28 1966-02-28 Car coupler anti-creep mechanism

Publications (1)

Publication Number Publication Date
US3387716A true US3387716A (en) 1968-06-11

Family

ID=24113081

Family Applications (1)

Application Number Title Priority Date Filing Date
US530281A Expired - Lifetime US3387716A (en) 1966-02-28 1966-02-28 Car coupler anti-creep mechanism

Country Status (11)

Country Link
US (1) US3387716A (xx)
AT (1) AT271561B (xx)
BE (1) BE694648A (xx)
CH (1) CH452585A (xx)
DE (1) DE1605184C3 (xx)
ES (1) ES337349A1 (xx)
FR (1) FR1512232A (xx)
GB (1) GB1126839A (xx)
LU (1) LU53068A1 (xx)
NL (1) NL148839B (xx)
SE (1) SE325046B (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110073555A1 (en) * 2009-01-21 2011-03-31 Qiqihar Railway Rolling Stock Co., Ltd Coupler and Anti-Creep Mechanism For The Same
US9701323B2 (en) 2015-04-06 2017-07-11 Bedloe Industries Llc Railcar coupler

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2591275A (en) * 1949-06-08 1952-04-01 Nat Malleable & Steel Castings Car coupler
US3283917A (en) * 1964-07-28 1966-11-08 Midland Ross Corp Fixed-jaw car coupler

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2591275A (en) * 1949-06-08 1952-04-01 Nat Malleable & Steel Castings Car coupler
US3283917A (en) * 1964-07-28 1966-11-08 Midland Ross Corp Fixed-jaw car coupler

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110073555A1 (en) * 2009-01-21 2011-03-31 Qiqihar Railway Rolling Stock Co., Ltd Coupler and Anti-Creep Mechanism For The Same
US8186525B2 (en) * 2009-01-21 2012-05-29 Qiqihar Railway Rolling Stock Co., Ltd. Coupler and anti-creep mechanism for the same
US9701323B2 (en) 2015-04-06 2017-07-11 Bedloe Industries Llc Railcar coupler
US10532753B2 (en) 2015-04-06 2020-01-14 Bedloe Industries Llc Railcar coupler

Also Published As

Publication number Publication date
NL148839B (nl) 1976-03-15
DE1605184B2 (de) 1978-11-02
SE325046B (xx) 1970-06-22
CH452585A (de) 1968-03-15
DE1605184A1 (de) 1971-02-25
BE694648A (xx) 1967-08-24
NL6702247A (xx) 1967-08-29
ES337349A1 (es) 1968-02-16
FR1512232A (fr) 1968-02-02
LU53068A1 (xx) 1967-04-24
DE1605184C3 (de) 1979-06-28
AT271561B (de) 1969-06-10
GB1126839A (en) 1968-09-11

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Legal Events

Date Code Title Description
AS Assignment

Owner name: THOMSON-CSF, 173, B1. HAUSSMANN 75008 PARIS FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:FRAPPE, GERARD;ORTALLI, PATRICE;REEL/FRAME:004746/0394

Effective date: 19860617

Owner name: THOMSON-CSF, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:FRAPPE, GERARD;ORTALLI, PATRICE;REEL/FRAME:004746/0394

Effective date: 19860617

AS Assignment

Owner name: NATIONAL CASTINGS INC., A CORP. OF DE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:NATIONAL CASTINGS INC., A CORP. OF IL;REEL/FRAME:004761/0913

Effective date: 19870818

Owner name: CONGRESS FINANCIAL CORPORATION

Free format text: SECURITY INTEREST;ASSIGNOR:NATIONAL CASTINGS INC., A DE CORP.;REEL/FRAME:004810/0513

Effective date: 19870807

AS Assignment

Owner name: NATIONAL CASTINGS INC. A CORP. OF DE

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CONGRESS FINANCIAL CORPORATION (CENTRAL);REEL/FRAME:005152/0735

Effective date: 19890919