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US3283917A - Fixed-jaw car coupler - Google Patents

Fixed-jaw car coupler Download PDF

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Publication number
US3283917A
US3283917A US470668A US47066865A US3283917A US 3283917 A US3283917 A US 3283917A US 470668 A US470668 A US 470668A US 47066865 A US47066865 A US 47066865A US 3283917 A US3283917 A US 3283917A
Authority
US
United States
Prior art keywords
lock
casing
coupler
abutment
lug
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
US470668A
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English (en)
Inventor
Dufourmantel Marius Georges
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.)
Midland Ross Corp
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
Application granted granted Critical
Publication of US3283917A publication Critical patent/US3283917A/en
Anticipated expiration legal-status Critical
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
    • 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

Definitions

  • a so-called pre-coupling position enables such couplers to be automatically locked when two cars or trains of cars are shunted towards each other.
  • the couplers being in the same horizontal plane, the coupler jaws can pass inside one another.
  • the locks provided to immobilise said jaws in the locked position first move aside so as to allow said jaws to engage in one another and adopt a so-called preliminary stop position.
  • the locks on the two cars to be coupled together then drop to fulfill their locking function, and the couplers are thus brought to the coupled position.
  • an uncoupling lever enables a fourth position to be reached, the so-called lock-set position or position maintaining the unlocked state.
  • position is maint-aimed by a latch, also referred to as a lock-set or lock-set piece, when action of the uncoupling lever has ceased.
  • the neutral position is generally controlled by an additional lever acting on the above mentioned uncoupling lever by means of a chain; such an additional lever can be immobilized, for example by a device comprising a detent notch.
  • a pair of cars cannot be automatically coupled together if at least one of them has its lock in the neutral position; this is the opposite of what happens when two cars have just been separated, one ⁇ at least having its lock in the lock-set position, for in this case all the members of the two couplers have necessarily returned to the pre-coupling position.
  • the present invention concerns various improvements particularly to the above-mentioned latch and to the element known as the anti-creep element, which is provided in such arrangements to prevent-in the coupled position -any untimely unlocking which could be caused Iby the possible withdrawal of said lock.
  • an automatic jaw-type coupler for a railway car and intended to co-operate with a similar coupler on another railway car comprising a casing, a lock movable in the casing between locking and unlocking positions, and an anti-creep element movable in the casing between positions in which it respectively prevents and permits movement of the lock to its unlocking position, characterised in that the anti-creep element is mounted on a stub shaft carried by -or forming part of the lock for pivotal movement between a lirst position in which it can engage an abutment on the casing to preventmovement of the lock to its unlockingv position and a second position in which it passes clear of the said abutment to permit movement of the lock to its unlocking position.
  • the preferred form the the invention involves the mounting of said anti-creep element on a special spindle provided on the lock itself, the element cooperating with a boss on the casing of the coupling head; in known arrangements the anti-creep element is generally mounted -on the so-Called lock-set piece or else bears on the latter.
  • Another improvement consists of providing at least one pivoting indicating memtber, the end of which-.in the pre-coupling position-strikes against a lug of the anti-creep element so that the indicating member is partially visibfle in said pre-coupling position.
  • the way in which the anti-creep element is mounted on the lock it-se-lf makes it possible, firstly, to dispense with the shaped concealing surface of said anti-creep element, which was necessary when the element was mounted on the lock-set piece as in the prior art and, secondly, to avoid untimely unlocking in the coupled position, which might be caused by the lock-set piece rising accidentally.
  • a cam controlled by the lever directly provides for said anti-creep element to be freed from an abutment on the coupling head, and the same cam then causes the lock to move aside.
  • neutral position indicating member In the above mentioned neutral position the pivoting indicating member is still more visible than in the lockset position.
  • a second, optional, so-called neutral position indicating member may appear and may in particular contain a notch which is only visible in the neutral position.
  • the lock-set piece instead of having a project-ion cooperating with another projection on the lock to maintain the lock-set position, has a cam surface with two slopes cooperating with a projection on the uncoupling cam.
  • the special projection provided on said cam cooperates at rst with the lower horizontal portion on said surface so las to raise the lock-set piece, which can drop back as soon as said special projection passes beyond said horizontal portion, while ensuring that the coupler is locked in the lock-set position.
  • the lock is thus also immobilized and cannot drop back so long as the cars are not separated, as a result of the cooperation between the heel or flange of the lockset piece and the face of the opposed coupling head.
  • a projecting spigot or the like provided on the lock-set piece makes it possible to return, if necessary, to the coupled position and to re-lock the coupling between two cars, at least one of which had its ,coupling head in the lock-set position.
  • FIG. l is a perspective exploded View of a coupler head showing the various components
  • FIG. 2 is a vertical section through a coupler head with an elevation of a first embodiment of said device in the pre-coupling position
  • FIG. 3 is a view similar to that in FIG. 2, in the preliminary stop position,
  • FIG. 4 is a View similar to FIGS. 2 and 3, in the coupled position
  • FIG. 5 is a View similar to FIGS, 2 to 4, in the lock-set position,
  • FIG. 6 is a view similar to FIGS. 2 to 5, in the neutral position
  • FIG. 7 is a plan view showing the coupler heads in the precoupling position
  • FIG. 8 is a plan view similar to that in FIG. 7, showing the coupler heads in the coupled position
  • FIG. 9 is a view similar to FIGS. 7 and 8, showing one of said heads in the lock-set position, and
  • FIG. 10 is a partial View similar to FIG. 5, representing a second embodiment of the device.
  • the whole arrangement cornprises a casing 1 for the coupler head, a cam 2, a lockset piece 3, an anti-creep element 4, a lock 5 which carries and pivotally supports the element 4, an uncoupling lever 6, a coupling indicating member 7 and a neutral position indicating member 8.
  • the two indicating members are mounted on two shafts 9 and 10 passing respectively through apertures 11 and 12 provided in the casing 1 of the coupling head.
  • the casing 1 includes a stub shaft 13 which cooperates with an oval hole 14 in the lock-set piece 3 and enables the lock-set piece 3 to be suspended from said shaft.
  • a rectangular opening 15 is provided in the casing 1 to give passage to a projecting spigot 16 of the lock-set piece 3.
  • the coupling indicating member 7 has an end portion 19 which may be controlled by the lug 18 of the anticreep element 4, as will be seen from FIGS. 2 to 6.
  • a hole 20 is formed in the casing 1 to give passage to the small-diameter end V6a of the shaft of the uncoupling lever 6.
  • An aperture 2a in the shape of a square cut 'off at the corners is provided on the cam 2 to cooperate with a similarly shaped portion 6b of the shaft of the lever 6.
  • the portion 6c of this lever crosses the lock 5 through an oval opening 21 provided therein.
  • the casing 1 is provided on the inside with an abutment 22 cooperating with a lip 23 of said cam 2 which, in the absence of such an abutment, would tend t-o be pivoted clockwise by the weight of its lug 24.
  • the lock-set piece 3 is provided with a heel or liange 25 which, in the coupled position, cooperates with the lock of the opposed coupling head.
  • the lock-set piece is also equipped with a projection or lug 26 provided to cooperate with a cam surface 27 of the anti-creep element 4 and also with a lug 28 provided on the lock 5.
  • the anti-creep element 4 contains a bore 29 by which it is pivotally mounted on a stub shaft 30 provided on the lock 5.
  • the lug 24 of the cam 2 cooperates with an abutment 31 provided on the lock 5 and with a second cam surface 32 provided on the anti-creep element 4.
  • the lock 5 further comprises a lug 33 serving to control the neutral position indicating member 8, a ange 34 which can engage in an opening 35 in the casing 1 of the coupling head, and a stub 36 which can engage in an opening 37 in the lower part of said casing 1.
  • the lock 5 is finally equipped with a shaped Surface 38 which can come to rest on the edge 39 of the lower part of the casing 1 of the coupling head.
  • a shoulder 40 located on said lock 5 in the vicinity of the stub 36 is provided to cooperate with a boss 41 which is provided inside the lower part of the casing 1 in the vicinity of the opening 37.
  • FIG. 1 also shows a cavity 42 in the lock 5, in which the anti-creep element 4 can be housed.
  • the flange 34 and the stub 36 of the lock 5 are housed respectively inside the cavities 35 and 37 of the casing 1.
  • the anti-creep element 4 is in the cavity 42 in said lock 5, and the lip 23 of the cam 2 is immobilized against the abutment 22 of said casing 1 owing to the position ofthe lever 6.
  • the lock 5 is then in a vertical position and its lower shaped surface 38 rests against the lower edge 39 of the casing 1.
  • the anges 25 and 25a of the lock-set piece 3 land of that of the opposed coupling head are in an inclined position, as are the lock-set pieces 3 of the two couplers themselves, and the lug 26 of the lock-set piece 3 bears on the cam surface 27 of the anti-creep element 4.
  • the stud 36 of the lock is displaced slightly into the opening 37 in the casing 1, while the flange 34 moves further :across the cavity 35 in said casing, the oval hole 21 in said lock 5 also moving to the left in relation to the iixed shaft 6c of the lever 6.
  • the locks 5 and 5a resume their vertical or ⁇ locking position on the yside facing the opposed coupling head, acting on the flanges of thelock-s'et pieces and making these pieces pivot (about their suspending stub shafts.
  • TheA lug 18 of the anti-creep element 4 is completely freed from the stub 19 of the coupling indicating member 7, in such a way that the coupling indicating member drops and, in the co-upled position shown in FIG. 4, is no longer visible.
  • the cam 2 on the other hand, remains in its previous position with its lip 23 applied to the abutment 22 of the casing 1, and the shaped surface 32 of the anti-creep element 4 comes to rest on the Ilug 24 0f said cam.
  • the lock 5 then pivots anticlockwise as seen in FIG. 5 about the boss 41 on the casing 1, by the action of the lug 24 on the cam 2.
  • the cam 2 is interlocked in rotation with the lever 6, and the lug 24 acts on abutment 31 on the lock S.
  • the ange 34 then projects through the opening 35 in the casing 1.
  • the lug 18 of the anti-creep element now moves to act on the end portion 19 of the coupling indicating member 7; the visible portion 7c is then larger than in the preliminary stop position.
  • the lug 33 of the lock 5 acts on the second or neutral position indicating member 8, which starts to appear.
  • the lock-set piece 3 remains in the same position as it had in the coupled position, and its flange 25 is held by the lock 5a of the opposed coupling head.
  • the lug 24 of said cram acts on the shaped surface 32 of the anti-creep element 4, the lug 18 of which then cooperates with the lower portion of the end portion 19 of the coupling indicating member 7.
  • the member 8 is optional and one can check whether the coupling is in the neutral position simply from the visible portion 7d of the member 7.
  • the lock-set piece 3a differs in shape from the lock-set piece 3 in FIGS. l to 6, although it has a similarly shaped flange 25 and is designed to co-operate in the same way as in the FIGS. 1-6 embodiment with part of the casing 1a of an opposed coupling head.
  • lock-set piece 3a has in its lower portion a cam surface 45 parallel to its top edge, i.e. horizontal in the coupled, lock-set or neutral position.
  • the cam surface 45 is extended by a perpendicular cam surface 46.
  • cam 2 is also replaced by a differently shaped cam 2b.
  • Thi-s is shown in full lines in the lock-set position and in broken lines in an intermediate position during its passage from the coupled to the lock-set position.
  • the lock 5 is shown in chain-dotted lines.
  • this cam has a boss which is visible at 47a and 47b.according to the position of the cam. Movement into the lock-set position vat rst tends slightly to raise the lock-set piece until the boss reaches the position 47 b and yallows the lock-set piece 3a to drop back.
  • cam surfaces 45 and 46 make it possible to omit the lug 28 on the lock 5. This prevents certain possibilities of jamming between the two lugs 26 and 28 in the embodiment in FIGS. 1 to 6.
  • a fixed-jaw railway car coupler intended for cooperation with a similar coupler on another railway car comprising:
  • a fixed-jaw railway car coupler intended for cooperation with a similar coupler on another railway car comprising:
  • a coupler according to claim 3 in which the coupler indicating member is pivotally mounted on the casing and can project through an aperture in the said casing and is progressively pivoted by the anticreep element so that different amounts of the indicating member are visible according to the condition of the coupler.
  • a Xed-jaw railway car coupler intended for cooperation with a similar coupler on another railway car comprising:
  • a coupler according to claim 5 in which the neutral position indicating member is pivotally mounted on the casing and can project through an aperture therein and is caused to pivot by engagement with a lug on the lock so as to indicate by the extent of its projection the neutral condition of the coupler.
  • a Xed-jaw railway car coupler intended for cooperation with a similar coupler on another railway car comprising:
  • a fixed-jaw railway car coupler intended for cooperation with a similar coupler on another railway car comprising:
  • an anticreep element pivotally mounted on said stub shaft for pivotal movement between a first position in which the said element, in being carried by the lock through a slight movement thereof rearwardly, can engage the abutment to prevent movement of the lock to its unlocked position and a second position in which the path of movement of the anticreep element upon pivotal movement of the lock to its unlocked position is clear of the said abutment.
  • a coupler according to claim 7 in which the cam has a lip adapted to engage an abutment provided on the casing, to prevent rotary movement of the cam under its own weight relative to the casing.
  • a coupler according to claim 1 including a lock-set piece pivotally mounted on the casing for movement between positions in which it respectively retains the lock in and frees it from its unlocking position, in which the lock-set piece takes the form of a member having two mutually perpendicular cam surfaces which are adapted to co-operate with a boss on the cam whereby rotation of the cam causes pivotal movement of the lock-set piece between its limiting positions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Clamps And Clips (AREA)
  • Mechanical Operated Clutches (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
US470668A 1964-07-28 1965-07-09 Fixed-jaw car coupler Expired - Lifetime US3283917A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR983347A FR1412470A (fr) 1964-07-28 1964-07-28 Perfectionnements aux dispositifs de verrouillage et déverrouillage pour attelages automatiques du type à mâchoires

Publications (1)

Publication Number Publication Date
US3283917A true US3283917A (en) 1966-11-08

Family

ID=8835584

Family Applications (1)

Application Number Title Priority Date Filing Date
US470668A Expired - Lifetime US3283917A (en) 1964-07-28 1965-07-09 Fixed-jaw car coupler

Country Status (10)

Country Link
US (1) US3283917A (fr)
AT (1) AT284201B (fr)
BE (1) BE667373A (fr)
CH (1) CH441422A (fr)
DE (1) DE1530192C3 (fr)
ES (1) ES315885A1 (fr)
FR (1) FR1412470A (fr)
LU (1) LU49167A1 (fr)
NL (1) NL6509785A (fr)
SE (1) SE320095B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3361271A (en) * 1966-02-07 1968-01-02 Midland Ross Corp Fixed jaw car coupler
US3387716A (en) * 1966-02-28 1968-06-11 Midland Ross Corp Car coupler anti-creep mechanism
EP3750772A1 (fr) * 2019-06-14 2020-12-16 Faiveley Transport Schwab AG Tête d'attelage, en particulier pour un véhicule ferroviaire

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3367516A (en) * 1966-03-30 1968-02-06 Midland Ross Corp Car coupler with reversible lock-set
DD203874A1 (de) * 1982-01-07 1983-11-09 Wilfried Wolter Blockiereinrichtung fuer riegelgetriebe von automatischen mittelpufferkupplungen
DE3428454A1 (de) * 1984-07-17 1986-01-30 Knorr-Bremse, 1000 Berlin und 8000 München Selbsttaetige kupplung fuer schienenfahrzeuge
DE3426363A1 (de) * 1984-07-17 1986-01-23 Knorr-Bremse, 1000 Berlin und 8000 München Selbsttaetige kupplung fuer schienenfahrzeuge

Citations (1)

* 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

Patent Citations (1)

* 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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3361271A (en) * 1966-02-07 1968-01-02 Midland Ross Corp Fixed jaw car coupler
US3387716A (en) * 1966-02-28 1968-06-11 Midland Ross Corp Car coupler anti-creep mechanism
EP3750772A1 (fr) * 2019-06-14 2020-12-16 Faiveley Transport Schwab AG Tête d'attelage, en particulier pour un véhicule ferroviaire

Also Published As

Publication number Publication date
CH441422A (de) 1967-08-15
DE1530192B2 (de) 1979-09-27
FR1412470A (fr) 1965-10-01
DE1530192A1 (de) 1970-05-27
SE320095B (fr) 1970-02-02
LU49167A1 (fr) 1967-01-26
BE667373A (fr) 1966-01-26
NL6509785A (fr) 1966-01-31
AT284201B (de) 1970-09-10
DE1530192C3 (de) 1980-06-04
ES315885A1 (es) 1966-08-01

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