US3828688A - Dynamic stop - Google Patents
Dynamic stop Download PDFInfo
- Publication number
- US3828688A US3828688A US00309026A US30902672A US3828688A US 3828688 A US3828688 A US 3828688A US 00309026 A US00309026 A US 00309026A US 30902672 A US30902672 A US 30902672A US 3828688 A US3828688 A US 3828688A
- Authority
- US
- United States
- Prior art keywords
- arm
- pivot
- stop
- cars
- pivot shaft
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K7/00—Railway stops fixed to permanent way; Track brakes or retarding apparatus fixed to permanent way; Sand tracks or the like
- B61K7/16—Positive railway stops
- B61K7/18—Buffer stops
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K7/00—Railway stops fixed to permanent way; Track brakes or retarding apparatus fixed to permanent way; Sand tracks or the like
- B61K7/02—Track brakes or retarding apparatus
- B61K7/04—Track brakes or retarding apparatus with clamping action
- B61K7/08—Track brakes or retarding apparatus with clamping action operated pneumatically or hydraulically
Definitions
- the invention relates generally to the selective stopping of cars in an operator-less, railway type transportation system and, more specifically, to the stopping of operator-less, remotely controlled cars in a transportation system such as is disclosed in commonly assigned US. Pat. Nos. 3,621,790, 3,626,859, and 3,650,216.
- the cars of an operator-less, railway-type transportation system may be readily and selectively stopped-by means of an arm positioned between the tracks of the transportation system and pivotably mounted so that it does not interfere with the passage of the cars when not in use, but may be rotated up so that an absorbent stop plate mounted thereon willcontact an absorbent bumper mounted on the front of the cars.
- the stop may be mounted on a reciprocating device, the actuation of which on contact with the car further absorbs the energy of the contact.
- FIG. 1 is a plan view of a dynamic stop constructed in accordance with the present invention showing the dynamic stop in the raised position.
- FIG. 2 is a side view of the dynamic stop shown in FIG. l in the raised position.
- FIG. 3 is a side view of the dynamic stop shown in FIG. l in the lowered position.
- two absorbent stop plates l are mounted on stop arms 11.
- the stop arms 11 are pivotably attached to pivot arms l2, spring arms 13, and shock absorbers 14, each of which is in turn pivotably attached to the connecting pivot shaft l5.
- the connecting pivot'shaft l5 is pivotably mounted in lateral supports 26, which are fixedly 6 or the trade'way support structure in a manner not shown. As may be seen most clearly in FIGS. 2 and 3,v
- this arrangement permits the stop plates 10 to be rotated clockwise about the pivot 16 by the impact of absorbent car bumper 17. However, the rotation is resisted by the shock absorbers 14 and, to some extent, by the die springs 18 mounted on the spring arms 13, thereby absorbing the energy of the contact.
- the die springs 18 serve also to return the stop arms ll to an upright position and the shock absrobers 14 to their normal condition once the pressure of the car against the stop plates 10 is removed.
- this arrangement permits the stop arms 1l to function independently which is an advantage over the dynamic stop disclosed and claimed in copending application, Ser. No. 309,373, tiled Nov. 24, 1972. This advantage particularly suits the dynamic stop disclosed herein for use on curved portions of the track. However, even on straight portions of the track it is important because the play allowed between the rails and the wheels can allow the car to cock slightly on the track.
- the pivot arms 12 are also pivotably attached to cam arms 19, which are in turn pivotably attached to linkage 20, which connects the cam arms 19 and causes them to operate in unison.
- Linkage 20 is connected to the piston 21 of dual-action fluid cylinder 22, which is pivotably mounted in the center ofthe trackway on cylinder bracket 23.
- This mechanism permits the stop plate 10 and the upper portions of stop arms 1l, spring arms 13, and shock absorbers 14 to be rotated down out of the way of approaching cars.
- Roller bearings 24 are mounted on the bottoms of the cam arms 19, and these rollers bearings run along cam tracks 2S when the fluid cylinder 22 is actuated.
- the actuation of the fluid cylinder 22 may be controlled by any appropriate means for example, the mechanism disclosed in commonly assigned U.S. Pat. No. 3,626,859.
- a pivot shaft adapted to be pivotably mounted adjacent to the tracks of a unit transportation system in a direction generally perpendicular to the direction of movement of the cars on the tracks;
- a stop arm pivotably connected to said pivot arm about an axis parallel to said pivot shaft at a point thereon remote from said pivot shaft;
- a shock absorber operatively connecting said stop arm to said pivot arm so as to resist pivoting movement of said stop arm with respect to said pivot arm in the direction of movement of the cars on the tracks;
- a dual-action fluid cylinder having a piston which is pivotably connected to said pivot arm at a point thereon remote from said pivot shaft for causing said pivot arm to pivot about said pivot shaft to shift said stop arm between operative and inoperative positions, said fluid cylinder being adapted to be pivotably mounted adjacent to the tracks of a unit transportation system about an axis generally parallel to said pivot shaft.
- a dynamic stop as claimed in claim l in which the piston of said dual-action fluid cylinder is connected to said pivot arm by means of a cam arm which acts as a linkage therebetween, said cam arm being pivotably connected .to said pivot arm at a point thereon remote from said pivot shaft and the piston of said dual-action fluid cylinder being pivotably connected to said cam arm at a point thereon remote from said pivot arm.
- a cam track adapted to be mounted adjacent to the tracks of a unit transportation system and 2.
- a roller bearing rotatably mounted on said cam arm in a position to cooperate with said cam track during actuation of said dual-action fluid cylinder.
- a dynamic stop as claimed in claim 1 and comprising at least two sub-assemblies cach one of which comprises a pivot arm, a stop arm, and a shock absorber connected together in the manner previously recited, whereby each sub-assembly acts separately, thereby compensating for slight variations in the direction of motion of the cars in the unit transportation system.
Abstract
Description
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00309026A US3828688A (en) | 1972-11-24 | 1972-11-24 | Dynamic stop |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00309026A US3828688A (en) | 1972-11-24 | 1972-11-24 | Dynamic stop |
Publications (1)
Publication Number | Publication Date |
---|---|
US3828688A true US3828688A (en) | 1974-08-13 |
Family
ID=23196353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00309026A Expired - Lifetime US3828688A (en) | 1972-11-24 | 1972-11-24 | Dynamic stop |
Country Status (1)
Country | Link |
---|---|
US (1) | US3828688A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3903810A (en) * | 1974-06-28 | 1975-09-09 | Si Handling Systems | Vehicle control device |
US4149469A (en) * | 1977-10-03 | 1979-04-17 | Six Flags, Inc. | Log braking and stabilizing system for log flume ride |
US4325307A (en) * | 1979-05-25 | 1982-04-20 | Dowty Hydraulic Units Limited | Buffer stop |
EP0083038A1 (en) * | 1981-12-29 | 1983-07-06 | Rheiner Maschinenfabrik Windhoff Akt.-Ges. | Buffer stop for track systems |
WO1984003671A1 (en) * | 1983-03-18 | 1984-09-27 | Oleo Int Holdings Ltd | Movable stops for railway vehicles |
US20100083865A1 (en) * | 2008-10-08 | 2010-04-08 | Aaa Sales & Engineering, Inc. | Devices and Systems for Controlling Travel of a Railcar |
US20110232521A1 (en) * | 2010-03-26 | 2011-09-29 | AAA Sales & Engineering , Inc. | Devices and Systems for Stopping Travel of a Railcar |
US20120012027A1 (en) * | 2010-05-20 | 2012-01-19 | Argent Industrial Limited | Stop device for rail cars and in particular for use with tracks in classification yards |
DE102010050777A1 (en) | 2010-11-10 | 2012-05-10 | A. Rawie Gmbh & Co. Kg | Track bumper for freight train, comprises bumper plate, which is connected with movable link that is aligned parallel to track longitudinal direction, where movable link is connected with hinge unit |
CN103895669A (en) * | 2014-04-04 | 2014-07-02 | 乳山市日晟机械制造有限公司 | Stop shaft pull rod type retarder |
US20150122144A1 (en) * | 2013-11-01 | 2015-05-07 | S&S Worldwide, Inc. | System and apparatus for silent anti-rollback for track mounted vehicles |
US9260120B2 (en) | 2010-03-26 | 2016-02-16 | Precision Rail And Mfg., Inc. | Devices, systems and methods for engaging and disengaging railcar wheels and for controlling travel of railcar |
CN105818836A (en) * | 2016-04-01 | 2016-08-03 | 程焱磊 | Buffer type automatic car arrester |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1761747A (en) * | 1929-03-09 | 1930-06-03 | Libbeyowens Glass Company | Bumper means |
US2017392A (en) * | 1932-11-29 | 1935-10-15 | Sherman J Blake | Vehicle stop |
US3626859A (en) * | 1969-12-19 | 1971-12-14 | Rex Chainbelt Inc | Idle car storage and dispensing system |
-
1972
- 1972-11-24 US US00309026A patent/US3828688A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1761747A (en) * | 1929-03-09 | 1930-06-03 | Libbeyowens Glass Company | Bumper means |
US2017392A (en) * | 1932-11-29 | 1935-10-15 | Sherman J Blake | Vehicle stop |
US3626859A (en) * | 1969-12-19 | 1971-12-14 | Rex Chainbelt Inc | Idle car storage and dispensing system |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3903810A (en) * | 1974-06-28 | 1975-09-09 | Si Handling Systems | Vehicle control device |
US4149469A (en) * | 1977-10-03 | 1979-04-17 | Six Flags, Inc. | Log braking and stabilizing system for log flume ride |
US4325307A (en) * | 1979-05-25 | 1982-04-20 | Dowty Hydraulic Units Limited | Buffer stop |
EP0083038A1 (en) * | 1981-12-29 | 1983-07-06 | Rheiner Maschinenfabrik Windhoff Akt.-Ges. | Buffer stop for track systems |
WO1984003671A1 (en) * | 1983-03-18 | 1984-09-27 | Oleo Int Holdings Ltd | Movable stops for railway vehicles |
US4572080A (en) * | 1983-03-18 | 1986-02-25 | Oleo International Holdings Limited | Movable stops for railway vehicles |
US20120055368A1 (en) * | 2008-10-08 | 2012-03-08 | Aaa Sales & Engineering, Inc. | Devices and Systems for Controlling Travel of a Railcar |
US8079309B2 (en) * | 2008-10-08 | 2011-12-20 | Aaa Sales & Engineering, Inc. | Devices and systems for controlling travel of a railcar |
US20100083865A1 (en) * | 2008-10-08 | 2010-04-08 | Aaa Sales & Engineering, Inc. | Devices and Systems for Controlling Travel of a Railcar |
US8485107B2 (en) * | 2008-10-08 | 2013-07-16 | Aaa Sales & Engineering, Inc. | Devices and systems for controlling travel of a railcar |
US20110232521A1 (en) * | 2010-03-26 | 2011-09-29 | AAA Sales & Engineering , Inc. | Devices and Systems for Stopping Travel of a Railcar |
US9260120B2 (en) | 2010-03-26 | 2016-02-16 | Precision Rail And Mfg., Inc. | Devices, systems and methods for engaging and disengaging railcar wheels and for controlling travel of railcar |
US8485105B2 (en) * | 2010-03-26 | 2013-07-16 | Aaa Sales & Engineering, Inc. | Devices and systems for stopping travel of a railcar |
US8485106B2 (en) * | 2010-05-20 | 2013-07-16 | Argent Industrial Limited | Stop device for rail cars and in particular for use with tracks in classification yards |
US20120012027A1 (en) * | 2010-05-20 | 2012-01-19 | Argent Industrial Limited | Stop device for rail cars and in particular for use with tracks in classification yards |
DE102010050777B4 (en) * | 2010-11-10 | 2012-09-27 | A. Rawie Gmbh & Co. Kg | Top security for a marshalling yard |
DE102010050777A1 (en) | 2010-11-10 | 2012-05-10 | A. Rawie Gmbh & Co. Kg | Track bumper for freight train, comprises bumper plate, which is connected with movable link that is aligned parallel to track longitudinal direction, where movable link is connected with hinge unit |
US20150122144A1 (en) * | 2013-11-01 | 2015-05-07 | S&S Worldwide, Inc. | System and apparatus for silent anti-rollback for track mounted vehicles |
US9259655B2 (en) * | 2013-11-01 | 2016-02-16 | S&S Worldwide, Inc. | System and apparatus for silent anti-rollback for track mounted vehicles |
CN103895669A (en) * | 2014-04-04 | 2014-07-02 | 乳山市日晟机械制造有限公司 | Stop shaft pull rod type retarder |
CN105818836A (en) * | 2016-04-01 | 2016-08-03 | 程焱磊 | Buffer type automatic car arrester |
CN105818836B (en) * | 2016-04-01 | 2018-05-08 | 程焱磊 | Buffer-type automatic car catcher |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MATHEWS CONVEYER COMPANY, LEBANON RD., DANVILLE, K Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:REXNORD INC.;REEL/FRAME:004705/0241 Effective date: 19870427 Owner name: MATHEWS CONVEYER COMPANY, A CORP. OF DE.,KENTUCKY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:REXNORD INC.;REEL/FRAME:004705/0241 Effective date: 19870427 |
|
AS | Assignment |
Owner name: BABCOCK INDUSTRIES INC., 425 POST ROAD, FAIRFIELD, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MATHEWS CONVEYER COMPANY, A DE. CORP.;REEL/FRAME:004821/0139 Effective date: 19871218 Owner name: BABCOCK INDUSTRIES INC., A CORP. OF NEW YORK,CONNE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MATHEWS CONVEYER COMPANY, A DE. CORP.;REEL/FRAME:004821/0139 Effective date: 19871218 |