US3414135A - Couplers - Google Patents

Couplers Download PDF

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Publication number
US3414135A
US3414135A US559840A US55984066A US3414135A US 3414135 A US3414135 A US 3414135A US 559840 A US559840 A US 559840A US 55984066 A US55984066 A US 55984066A US 3414135 A US3414135 A US 3414135A
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US
United States
Prior art keywords
spring
container
group
drawbar
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
US559840A
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English (en)
Inventor
Levie Max Hubert Pro Alexander
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.)
FH Lloyd and Co Ltd
Original Assignee
FH Lloyd and Co Ltd
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Filing date
Publication date
Application filed by FH Lloyd and Co Ltd filed Critical FH Lloyd and Co Ltd
Application granted granted Critical
Publication of US3414135A publication Critical patent/US3414135A/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G5/00—Couplings for special purposes not otherwise provided for
    • B61G5/04—Couplings for special purposes not otherwise provided for for matching couplings of different types, i.e. transitional couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G9/00—Draw-gear
    • B61G9/04—Draw-gear combined with buffing appliances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G9/00—Draw-gear
    • B61G9/04—Draw-gear combined with buffing appliances
    • B61G9/06—Draw-gear combined with buffing appliances with rubber springs

Definitions

  • ABSTRACT OF THE DISCLOSURE railway buffing and drawgear in which a spring container includes first and second groups of parallel arms with the arms of the second group interdigitated with those of the first.
  • Transverse inner abutment means is adjacent the inner abutment means of the other group and outer abutment means is remote from the outer abutment means of the other group.
  • the inner abutment means of each group lies between the inner and outer abutment means of the other group to be capable of sliding in the space defined by the arms and inner and outer abutment means of the other group.
  • This invention relates to improvements in couplings for railway and like vehicles.
  • the method of transmitting buffing and traction loads to the elastic member is by means of a yoke connected to the coupler head of the Norwegian Hook type for traction loads and a bufiing sleeve and follower for bufiing loads. Traction loads are transmitted from the head through an intermediate drawbar but bufiing loads are transmitted through a surrounding buffing sleeve.
  • the present invention has a three-fold objective, viz: to provide for interchangeability of coupling means; to provide for variation in combinations of elastic member; and to provide for an assembly leading to a reduction in maintenance time compared with previous types.
  • the first objective of this invention is to provide for easy changeover of coupling means.
  • a spring container consisting of a first group of parallel arms, a second group of arms parallel to and interdigitated with the arms of the first group, and transverse abutment means on each end of each group, namely on each group inner abutment means adjacent to the inner abutment means of the other group and outer abutment means remote from the outer abutment means of the other group, the inner abutment means of each group lying between the inner and outer abutment means of the other group so as to be able to slide in the space defined by the arms and inner and outer abutment means of the other group.
  • the abutment means are disks or plates and the outer disks or plates are detachable from the arms.
  • each group contains two arms, the arms of each group being in a common plane perpendicular to the plane of the other group.
  • Elastic or energy-absorbing elements are placed between the inner abutment means of one group and the outer abutment means of the other group to form a packaged unit which can be handled and installed in a yoke or other drawgear as a single unit.
  • This spring container is such that variations in the manner or type of elastic element can be made within the confines of space decided by the vehicle dimensions, and the container can be easily inserted or removed from the vehicle as required.
  • an auxiliary spring acts between the yoke and the container for the main springs to control swivelling of the head.
  • an adjustable spring seat attached to the yoke is interposed between the auxiliary spring and the container.
  • FIGURES 1 and 2 show buffing and drawgear with a yoke, a Norwegian hook coupler and the new spring container;
  • FIGURES 3 and 4 show similar gear with a knuckle coupler and drawbar, in plan and side view;
  • FIGURES 5a and 5b show similar gear with a gedge hook coupler and drawbar
  • FIGURES 6 and 7 show the spring container used with a drawbar instead of a yoke
  • FIGURES 8 and 9 illustrate the use of a disk hook and shackle coupler
  • FIGURES 10 and 11 show the spring container on a larger scale.
  • FIGURE 1 shows in side view and FIGURE 2 in plan a Norwegian hook coupler head 1 attached to an intermediate drawbar 2 contained within a butting sleeve 3 which is of rectangular hollow form terminating at the head end with a flanged surface 4 which abuts the rear of the coupler head.
  • the other end of the sleeve has two lugs 5 which in turn contact faces 6 of a follower 7.
  • the follower 7 has at its rear a large platen face 8 which is in contact with one of the ends of thespring container, and a forward flange face 9 restrained by a lug 10 integral with a guide 11 which in turn is secured to the vehicle frame.
  • the follower has lugs or projecting pieces 12 which are in contact at the faces 6 with the sleeve 3.
  • the intermediate drawbar 2 is secured to the coupler head 1 by means of a bolt 13 while the other end is arranged to mate with a drawbar fork end 14 (FIGURE 7) or a yoke fork end 15 (FIGURE 1).
  • a drawbar fork end 14 (FIGURE 7) or a yoke fork end 15 (FIGURE 1).
  • the load is transferred between the head and the spring container by either yoke 16 (FIGURES 1 and 2) or drawbar 17 (FIGURES 6 and 7), through a pin 18.
  • This pin allows lateral pivoting of the coupler head when the vehicle is on a curve, and also transmits the traction load to the yoke or drawbar.
  • the load is transmitted to the spring container from the head to the bufiing sleeve 3 through faces 4 and through the sleeve 3 to faces 6 and thence through face 8 to the spring container.
  • the objective of divided thrust through the lugs 5 is to allow lateral movement of the coupler which movement is under control by means of an auxiliary spring 19 acting between yoke or drawbar and the spring container, with the spring 19 and the container being deflected when such angular movement takes place about the pin 18.
  • the intermediate drawbar 2 and its bolt 13 allow either a Norwegian hook or a Knuckle type coupler 1b (FIGURES 3 and 4) to be attached to the gear as required.
  • a disk hook and shackle coupler 20 ' (FIG- URES 8 and 9) is employed it is necessary to arrange that the intermediate drawbar 2 and lugs 5 Le. sleeve 3 are integral and are so designed that the end connecting with the fork 14 or 15 will provide for mating faces 6 which contact the follower.
  • the improvement is proposed consisting of the use of a support bracket 44 having a flat horizontal surface 45 on which rests a corresponding surface of the coupler head, thus relieving the head of vertical loads and eliminating any tendency of the head to sag with wear.
  • this arrangement of mechanism is suitable for connecting all types of coupler head required for buff and draw movements in a central position, or with a gedge hook under center traction only, to the springs and container by a drawbar or yoke.
  • the new spring container (FIGURES 1, 2, 6, 7, 10, 11) comprises two slidable casings 23 and 24 with circular inner end plates 29 and 30 each integral with two arms 43, with the arms of each casing being in a common plane perpendicular to that of the arms of the other casing (FIGURE 10).
  • the two casings are slidably interlocked.
  • the arms of casing 23 are interdigitated with those of casing 24.
  • Each casing contains one or more elastic members trapped between its outer end plate and the inner end plate of the other casings.
  • a small gap 27 is arranged between the arm ends and the outer end plate.
  • the elastic member at this end then has a lesser amount of initial loading; this measure has as its objective :1 more sensitive control of the head when lateral movement is initiated, than would be the case if the gap were omitted.
  • the rear end plate 25 first closes the gap 27 and the load is then transferred to the arms of the casing 24.
  • the load then not only compresses the rear elastic member 28 against the inner end plate 29 of the front casing 23, but also a similar action of inner end plate 30 of casing 24 compresses the front elastic element 31 against the front outer end plate 25.
  • the elastic or other elements then work in parallel after closure of the gap 27.
  • the container ends abut follower 7 and flanges or lugs 32 of the longitudinal guide 11 which in turn is attached by bolts or other fastenings to the main longitudinal members of the vehicle frame.
  • the casing arms are arranged in such a manner that mainly circular elastic elements can be partially housed on the inside.
  • energy absorbing means such components as rubber springs, a single steel spring, or nest of helical steel springs, a hydraulic dashpot, ring spring or such combinations of these components as may be desired to obtain the required performance characteristics.
  • energy absorbing means of friction types can also be accommodated.
  • the container and elastic members form a readily removable unit. Moreover access for changing or adjusting the elastic members is easily obtained by removal of the outer end plates 25.
  • the drawbar 17 (FIGURES 6 and 7) has at the rear end a screwed portion carrying an integral nut and sleeve. Between sleeve portion 35 of the nut and the rear outer end plate 25 of the container, a gap is left. Surrounding the sleeve of the nut and axially in line is a helical auxiliary spring 19 which abuts both end plate 25 and a flanged base 37 of thevnut. On screwing the nut inwards along the drawbar a compression load is put into the spring 19 up to a desired amount.
  • the objective of this arrangement is to provide sensitive control of the vertical pivoting of the head about the bolt or pin 13, which accommodates the up and down movements between adjacent vehicles when running in a train and allows for head movement through variations in height between loaded and empty coupled vehicles.
  • the container is of such a design and assembly that it is possible to use this arrangement with either a drawbar inserted through the center (FIG- URES 6 and 7), holes being provided in the component parts to allow for this, or in a yoke which surrounds the whole container (FIGURES 1 and 2).
  • the manner in which the same control is obtained is as follows (FIGURES 1 and 2):
  • the spring 19 is here contained within a hollow receptacle formed in the rear end of the yoke. Loading of the spring is by means of a flanged cup 38 having at its axial center a hole through which a bolt 39 is inserted. This bolt is screwed through a tapped hole in the center of the base of the receptacle and is locked by means of a nut 40.
  • Two fiat surfaces are made on the screwed portion of the bolt of a size allowing the use of a spanner or similar tool to adjust the spring load by external operation.
  • a gap 41 between the operating face of yoke end and container outer end plate at the rear of the assembly By allowing a gap 41 between the operating face of yoke end and container outer end plate at the rear of the assembly, a similar action to that in the case of the drawbar gives control of the vertical displacement of the head, since reactions are obtained from compression of the auxiliary spring between the faces abutting at the spring cup 38 and the end of the yoke receptacle.
  • this auxiliary spring arrangement provides lateral control and further ensures that any slackness which could develop between essential contacting faces through setting of the elastic or other energy absorbing member will be taken up by automatic inherent expansion of the auxiliary spring.
  • cup 38 acts as an adjustable seat for spring 19'.
  • the spring By screwing up the bolt 39 the spring can be compressed right into the receptacle in-the yoke, permitting easy removal of the container without any risk of losing the spring, cup, or screw, which remain in the yoke.
  • the yoke is very much simplified by the use of the new container and auxiliary spring mounting-which also, as explained above, greatly facilitates dismantling and hence maintenance and adjustment.
  • a striker plate 46 on the vehicle has a convex arcuate surface so that any load applied to it is radial while a convex surface on the coupler head facing a concave striker plate, could cause tangential slipping forces if the two meet while the head is swivelled.
  • a spring container consisting of a first group of parallel arms, a second group of arms parallel to and interdigitated with the arms of the first group, transverse abutment means on each end of each group, namely on each group inner abutment means adjacent to the inner abutment means of the other group and outer abutment means remote from the outer abutment means of the other group, the inner abutment means of each group lying between the inner and outer abutment means of the other group so as to be able to slide in the space defined by the arms and inner and outer abutment means of the other group and energy absorbing elements placed between the inner abutment means of one group and the outer abutment means of the other group to provide a packaged unit which can be handled and installed in a drawgear as a single unit, with one outer abutment means being attached to its arms with a limited amount of axially play.
  • railway buffing and drawgear including a resilient assembly and a yoke or drawbar connecting the resilient assembly to a coupling head, the yoke or drawbar having at its forward end a vertical fork and pin whereby different coupling heads may be connected to the drawbar, an intermediate drawbar positively connected to the pin and the head for transmitting traction loads, the head and resilient assembly having opposed abutment surfaces, and a bufiing sleeve carried on the intermediate drawbar and interposed between said abutment surfaces of the head and the resilient assembly for transmitting buffing loads.
  • railway bufling and drawgear including a resilient assembly comprising a spring container and energy absorbing means therein, a coupling head, a drawbar connecting the head to the spring container, and auxiliary spring carried on the drawbar and acting between the drawbar and the spring container, and an adjustable stop on the drawbar arranged to engage the spring container after the auxiliary spring has been deflected by a predetermined amount, said stop comprising a sleeve nut on the drawbar having an abutment surface engaging the auxiliary spring, and the sleeve of the nut extending within the auxiliary spring to a predetermined spacing from the spring container.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)
  • Springs (AREA)
  • General Details Of Gearings (AREA)
US559840A 1965-07-23 1966-06-23 Couplers Expired - Lifetime US3414135A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB31618/65A GB1132705A (en) 1965-07-23 1965-07-23 Railway vehicle buff and/or drawgear

Publications (1)

Publication Number Publication Date
US3414135A true US3414135A (en) 1968-12-03

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US559840A Expired - Lifetime US3414135A (en) 1965-07-23 1966-06-23 Couplers

Country Status (3)

Country Link
US (1) US3414135A (enrdf_load_stackoverflow)
BE (1) BE684015A (enrdf_load_stackoverflow)
GB (2) GB1132705A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506868A (en) * 1983-05-27 1985-03-26 Sumitomo Metal Industries, Ltd. Shock absorber for vehicular couplers
US5598937A (en) * 1996-02-14 1997-02-04 Keystone Industries, Inc. Slackless drawbar assembly
RU2444456C2 (ru) * 2009-12-29 2012-03-10 Общество с ограниченной ответственностью "Тульский механический завод" Способ работы поглощающего аппарата грузового железнодорожного вагона
CN101674968B (zh) * 2007-05-01 2015-08-05 西屋控股公司 轭架和弹性体牵引装置的组合

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3830739A1 (de) * 1988-09-09 1990-03-22 Bergische Stahlindustrie Wechselsystem an einer mittelkupplung von schienenfahrzeugen
CN103332204A (zh) * 2013-06-27 2013-10-02 南车四方车辆有限公司 铁轨回送车用车钩及铁轨回送车

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1676178A (en) * 1925-01-21 1928-07-03 Symington Co Draft rigging
US2176223A (en) * 1937-05-12 1939-10-17 Pullman Standard Car Mfg Co Cushioning mechanism
US2176652A (en) * 1934-08-10 1939-10-17 Symington Gould Corp Draft rigging
US2212843A (en) * 1938-03-08 1940-08-27 Nat Malleable & Steel Castings Draft rigging
US2576214A (en) * 1948-08-20 1951-11-27 Miner Inc W H Shock absorbing mechanism for railway draft riggings
US2639044A (en) * 1950-03-30 1953-05-19 Miner Inc W H Friction shock absorber for railway draft riggings
US2880888A (en) * 1956-11-08 1959-04-07 Symington Wayne Corp Draft rigging

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1676178A (en) * 1925-01-21 1928-07-03 Symington Co Draft rigging
US2176652A (en) * 1934-08-10 1939-10-17 Symington Gould Corp Draft rigging
US2176223A (en) * 1937-05-12 1939-10-17 Pullman Standard Car Mfg Co Cushioning mechanism
US2212843A (en) * 1938-03-08 1940-08-27 Nat Malleable & Steel Castings Draft rigging
US2576214A (en) * 1948-08-20 1951-11-27 Miner Inc W H Shock absorbing mechanism for railway draft riggings
US2639044A (en) * 1950-03-30 1953-05-19 Miner Inc W H Friction shock absorber for railway draft riggings
US2880888A (en) * 1956-11-08 1959-04-07 Symington Wayne Corp Draft rigging

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4506868A (en) * 1983-05-27 1985-03-26 Sumitomo Metal Industries, Ltd. Shock absorber for vehicular couplers
US5598937A (en) * 1996-02-14 1997-02-04 Keystone Industries, Inc. Slackless drawbar assembly
CN101674968B (zh) * 2007-05-01 2015-08-05 西屋控股公司 轭架和弹性体牵引装置的组合
RU2444456C2 (ru) * 2009-12-29 2012-03-10 Общество с ограниченной ответственностью "Тульский механический завод" Способ работы поглощающего аппарата грузового железнодорожного вагона

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Publication number Publication date
GB1132706A (en) 1968-11-06
GB1132705A (en) 1968-11-06
BE684015A (enrdf_load_stackoverflow) 1966-12-16

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