US3713686A - Locking plate for axle end caps - Google Patents

Locking plate for axle end caps Download PDF

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Publication number
US3713686A
US3713686A US00108335A US3713686DA US3713686A US 3713686 A US3713686 A US 3713686A US 00108335 A US00108335 A US 00108335A US 3713686D A US3713686D A US 3713686DA US 3713686 A US3713686 A US 3713686A
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United States
Prior art keywords
openings
bolts
lock plate
axle
template
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US00108335A
Inventor
T Eddy
C White
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ABC Rail Corp
American National Bank and Trust Company of Chicago
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Abex Corp
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Assigned to ABC RAIL CORPORATION, A CORP. OF DE. reassignment ABC RAIL CORPORATION, A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ABEX CORPORATION
Assigned to SANWA BUSINESS CREDIT CORPORATION, FIRST NATIONAL BANK OF CHICAGO, THE reassignment SANWA BUSINESS CREDIT CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ABC RAIL CORPORATION
Assigned to FIRST NATIONAL BANK OF CHICAGO (CANADA), THE reassignment FIRST NATIONAL BANK OF CHICAGO (CANADA), THE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ABC RAIL CORPORATION, A CORP. OF DE.
Anticipated expiration legal-status Critical
Assigned to ABC RAIL CORPORATION, A CORP OF DE. reassignment ABC RAIL CORPORATION, A CORP OF DE. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). RECORDED ON REEL 4873 FRAME 427 Assignors: SANWA BUSINESS CREDTI CORPORATION
Assigned to AMERICAN NATIONAL BANK AND TRUST COMPANY OF CHICAGO A NATIONAL BANKING ASSOCIATION reassignment AMERICAN NATIONAL BANK AND TRUST COMPANY OF CHICAGO A NATIONAL BANKING ASSOCIATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: FIRST NATIONAL BANK OF CHICAGO, THE A NATIONAL BANKING ASSOCIATION
Assigned to AMERICAN NATIONAL BANK AND TRUST COMPANY OF CHICAGO reassignment AMERICAN NATIONAL BANK AND TRUST COMPANY OF CHICAGO RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: FIRST NATIONAL BANK OF CHICAGO, THE
Assigned to ABC RAIL CORPORATION reassignment ABC RAIL CORPORATION RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: AMERICAN NATIONAL BANK AND TRUST COMPANY OF CHICAGO, FIRST NATIONAL BANK OF CHICAGO, (CANADA), THE
Expired - Lifetime legal-status Critical Current

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    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/002—Measures against loss of bolts, nuts or pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F15/00—Axle-boxes
    • B61F15/20—Details
    • B61F15/26—Covers; Sealing thereof
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/10—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt
    • F16B39/101—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt with a plate, spring, wire or ring holding two or more nuts or bolt heads which are mainly in the same plane
    • 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
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/955—Locked bolthead or nut
    • Y10S411/974—Side lock
    • Y10S411/984—Longitudinal
    • 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
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/955—Locked bolthead or nut
    • Y10S411/974—Side lock
    • Y10S411/984—Longitudinal
    • Y10S411/985—Bolthead- or nut-held

Definitions

  • ABSTRACT [52] U.S. Cl. ??295/36 R, 105/218 R, 151/54,
  • Bolts used to secure the end of a bearing structure to the end of a railroad car axle are secured against loosening by the conjoint action of bent tabs on a temmR W6 B 5 @9 12 b B 7 7 2 b5 5 l 7 F4 ,5 6/ 1 /5 51 m b 0 m r.
  • bearings for the journal of a railroad car axle which are inclusive of an end cap, bolted to the free end of the journal.
  • the end cap serves the purposes of enclosing the end of the bearing and securing the bearing assembly axially to the journal.
  • FIG. 1 is a perspective view of the wheel and bearing of a railroad car in the process of having the present invention applied thereto;
  • FIG. 2 is a plan view of the template which features in the present locking device
  • FIG. 3 is a plan view of the locking plate which features in the device of the present invention.
  • FIG. 3A is a plan view showing the lock plate juxtaposed on the template, with one tab and one bolt head in locked position.
  • FIG. 1 shows the wheel W of a railroad car on a rail R.
  • the car has a truck which includes a side frame 80.
  • An adapter is located within the side frame and embraces the top of a housing 12 12 of a roller bearing which rotatably supports the journal end of the car axle, not shown.
  • the bearing structure includes an axle end cap 14 which secures the bearing assembly against endwise displacement. Accordingly, fastening bolts 15 are adapted to be extended through openings 16 in the end cap and are threadedly engaged in tapped openings at the journal end of the car axle, not shown.
  • FIG. 2 shows the template or tab plate constituting part of the securing device of the present invention such being identified by the reference character 20.
  • the template 20 has three openings 21 therein adapted to be registered with the openings 16 in the axle end cap, as shown in FIG. 1, and after such juxtaposition has been accomplished the bolts 15 are then applied and tightened.
  • the lock plate which features in the present invention is identified by reference character 25 in FIG. 3, and in this connection it is to be noted that the bolt heads 15H have flat sides separated by angle points, six in number in the present instance inasmuch as the bolts are of conventional hex head form.
  • the lock plate 25 has three openings 26 formed therein and these openings 26 are serrated to provide angles 27 symmetrical with and corresponding to the angulation of the points on the head 15H of the bolt.
  • each opening 26 is adapted to neatly accommodate the points of the head of the bolt, and in order to facilitate ready implacement it is preferred that the points in the serrated openings 26 be twelve in number or some other multiple of six as compared to the six points of the hex head bolt.
  • the lock plate 25 is to be fitted over the heads of the bolts, as can be appreciated from FIG. 3A, and in order that this may be readily and easily accomplished the template is provided with index marks IM.
  • index marks IM index marks
  • the serrated openings 26 in the lock plate are similarly oriented, that is, are so formed that a point thereof, in each of the three openings 26 will be juxtaposed on an index mark IM when the lock plate is juxtaposed on the template.
  • axle cap fastened to the journal of a railroad car axle by bolts having heads with flat sides, the sides being separated by an angle point, whereby the cap rotates with the axle, the axle cap having openings for the bolts, means to secure the bolts against loosening and comprising: a template having a plurality of openings therein registrable with the openings in the cap and receiving the shanks of the bolts, a lock plate having a plurality of openings therein fitted over the heads of the bolts in juxtaposed relation to the template, the openings in the lock plate being serrated peripherally in a pattern conforming to adjacent angle points of the bolt heads so that a plurality of adjacent serrations in the lock plate openings embrace immediately adjacent angles of the bolt heads, and tabs on the template bent over edges of the lock plate to secure the lock plate against displacement.
  • a template as set forth in claim 1 having an index mark adjacent each opening therein, to which mark a point on a bolt head is turned before juxtaposing the lock plate.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

Bolts used to secure the end of a bearing structure to the end of a railroad car axle are secured against loosening by the conjoint action of bent tabs on a template and serrated openings in a juxtaposed lock plate fitted over the heads of the bolts.

Description

Jan. 30, 1973 United States Patent [191 Eddy et al.
tmmJo c n n ye m dm dm EU.lr. HBTBD 020 0 70267 99999 11111 82032 90086 06 32 .3 J 36773 2 579 S n 43 G 4 3 23 [73] Assignee: Abex Corporation, New York, NY. primary 1 M poflenza Jan. 21, 1971 [21] Appl. N0.: 108,335
Assistant ExaminerHoward Beltran Attorneyl(inzer & Dorn Filed:
ABSTRACT [52] U.S. Cl. .....295/36 R, 105/218 R, 151/54,
Bolts used to secure the end of a bearing structure to the end of a railroad car axle are secured against loosening by the conjoint action of bent tabs on a temmR W6 B 5 @9 12 b B 7 7 2 b5 5 l 7 F4 ,5 6/ 1 /5 51 m b 0 m r.
a e 8 cl 0 d .1 MR IF .1] 8 55 [.1
plate and serrated openings in a juxtaposed lock plate fitted over the heads of the bolts.
2 Claims, 4 Drawing Figures [56] References Cited UNITED STATES PATENTS 1,915,088 Eastburg LOCKING PLATE FOR AXLE END CAPS This invention relates to a bearing structure for the journal of a railroad car axle and in particular to a device for preventing loosening of the bolts which secure the bearing end cap to the axle.
There are several different forms of bearings for the journal of a railroad car axle which are inclusive of an end cap, bolted to the free end of the journal. The end cap serves the purposes of enclosing the end of the bearing and securing the bearing assembly axially to the journal.
It is common practice to afford a device of some kind for securing the fastening bolts against reverse rotation and consequent loosening, since a loose end cap can lead to bearing failure. However, our experience reveals that the devices as heretofore used are not always reliable, and the primary object of the present invention is to prevent loosening of bearing end cap securing bolts in a more reliable manner and specifically to accomplish this by a unique combination of a template and a lock plate associated therewith.
Other and further objects of the present invention will be apparent from the following description and claims and are illustrated in the accompanying drawing which, by way of illustration, shows preferred embodiments of the present invention and the principles thereof and what we now consider to be the best mode in which we have contemplated applying these principles. Other embodiments of the invention embodying the same or equivalent principles may be used and structural changes may be made as desired by those skilled in the art without departing from the present invention.
In the drawings:
FIG. 1 is a perspective view of the wheel and bearing of a railroad car in the process of having the present invention applied thereto;
FIG. 2 is a plan view of the template which features in the present locking device;
FIG. 3 is a plan view of the locking plate which features in the device of the present invention; and
FIG. 3A is a plan view showing the lock plate juxtaposed on the template, with one tab and one bolt head in locked position.
FIG. 1 shows the wheel W of a railroad car on a rail R. The car has a truck which includes a side frame 80. An adapter is located within the side frame and embraces the top of a housing 12 12 of a roller bearing which rotatably supports the journal end of the car axle, not shown.
The bearing structure includes an axle end cap 14 which secures the bearing assembly against endwise displacement. Accordingly, fastening bolts 15 are adapted to be extended through openings 16 in the end cap and are threadedly engaged in tapped openings at the journal end of the car axle, not shown.
FIG. 2 shows the template or tab plate constituting part of the securing device of the present invention such being identified by the reference character 20. The template 20 has three openings 21 therein adapted to be registered with the openings 16 in the axle end cap, as shown in FIG. 1, and after such juxtaposition has been accomplished the bolts 15 are then applied and tightened.
The lock plate which features in the present invention is identified by reference character 25 in FIG. 3, and in this connection it is to be noted that the bolt heads 15H have flat sides separated by angle points, six in number in the present instance inasmuch as the bolts are of conventional hex head form.
The lock plate 25 has three openings 26 formed therein and these openings 26 are serrated to provide angles 27 symmetrical with and corresponding to the angulation of the points on the head 15H of the bolt. Thus, as shown in FIG. 3, each opening 26 is adapted to neatly accommodate the points of the head of the bolt, and in order to facilitate ready implacement it is preferred that the points in the serrated openings 26 be twelve in number or some other multiple of six as compared to the six points of the hex head bolt.
The lock plate 25 is to be fitted over the heads of the bolts, as can be appreciated from FIG. 3A, and in order that this may be readily and easily accomplished the template is provided with index marks IM. When the bolts are tightened, this is done to the extent that an angle point of the head of a bolt 15H FIG. 2, is aligned accurately with a corresponding index mark IM. The serrated openings 26 in the lock plate are similarly oriented, that is, are so formed that a point thereof, in each of the three openings 26 will be juxtaposed on an index mark IM when the lock plate is juxtaposed on the template. Hence by tightening the bolts so that an angle point of each is aligned with an index mark IM, it is assured that the lock plate will neatly fit the heads of the three bolts with the bolt heads fitted in the openings 26, and thus in this fashion the three bolts are firmly and positively locked against rotation. After such juxtaposition has been accomplished with the heads of the bolts fitted in the opening 26, tabs or lugs 30 on the template are bent upwardly and then inwardly to overlie the edges of the lock plate thereby securing the latter against endwise displacement.
From the foregoing it will be seen that by combining a template and a lock plate, in the form shown, we are able to positively secure against back-off the fastening bolts of an axle cap, and obviously it is possible to vary and modify the form without departing from the principles of the invention.
We claim:
1. In an axle cap fastened to the journal of a railroad car axle by bolts having heads with flat sides, the sides being separated by an angle point, whereby the cap rotates with the axle, the axle cap having openings for the bolts, means to secure the bolts against loosening and comprising: a template having a plurality of openings therein registrable with the openings in the cap and receiving the shanks of the bolts, a lock plate having a plurality of openings therein fitted over the heads of the bolts in juxtaposed relation to the template, the openings in the lock plate being serrated peripherally in a pattern conforming to adjacent angle points of the bolt heads so that a plurality of adjacent serrations in the lock plate openings embrace immediately adjacent angles of the bolt heads, and tabs on the template bent over edges of the lock plate to secure the lock plate against displacement.
2. A template as set forth in claim 1 having an index mark adjacent each opening therein, to which mark a point on a bolt head is turned before juxtaposing the lock plate.

Claims (2)

1. In an axle cap fastened to the journal of a railroad car axle by bolts having heads with flat sides, the sides being separated by an angle point, whereby the cap rotates with the axle, the axle cap having openings for the bolts, means to secure the bolts against loosening and comprising: a template having a plurality of openings therein registrable with the openings in the cap and receiving the shanks of the bolts, a lock plate having a plurality of openings therein fitted over the heads of the bolts in juxtaposed relation to the template, the openings in the lock plate being serrated peripherally in a pattern conforming to adjacent angle points of the bolt heads so that a plurality of adjacent serrations in the lock plate openings embrace immediately adjacent angles of the bolt heads, and tabs on the template bent over edges of the lock plate to secure the lock plate against displacement.
1. In an axle cap fastened to the journal of a railroad car axle by bolts having heads with flat sides, the sides being separated by an angle point, whereby the cap rotates with the axle, the axle cap having openings for the bolts, means to secure the bolts against loosening and comprising: a template having a plurality of openings therein registrable with the openings in the cap and receiving the shanks of the bolts, a lock plate having a plurality of openings therein fitted over the heads of the bolts in juxtaposed relation to the template, the openings in the lock plate being serrated peripherally in a pattern conforming to adjacent angle points of the bolt heads so that a plurality of adjacent serrations in the lock plate openings embrace immediately adjacent angles of the bolt heads, and tabs on the template bent over edges of the lock plate to secure the lock plate against displacement.
US00108335A 1971-01-21 1971-01-21 Locking plate for axle end caps Expired - Lifetime US3713686A (en)

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US10833571A 1971-01-21 1971-01-21

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980321A (en) * 1974-12-23 1976-09-14 Caterpillar Tractor Co. Hitch pin assembly for a tractor-scraper vehicle and the like
US4577891A (en) * 1983-10-27 1986-03-25 The United States Of America As Represented By The Secretary Of The Air Force Torque limiting collar
US4885834A (en) * 1988-10-04 1989-12-12 Beerman Paul J Method and device for removing wheel nuts and cap nuts from the outer wheel of a dual-wheel double-nut system
US6491441B2 (en) 1999-03-04 2002-12-10 Skf Industrie S.P.A. Tapered bearing unit
US7708509B1 (en) * 2009-05-08 2010-05-04 Bennett Bruce A Locking retainer for threaded fasteners
EP3088678A1 (en) * 2015-04-06 2016-11-02 United Technologies Corporation Tri-tab lock washer
EP3088677A1 (en) * 2015-04-06 2016-11-02 United Technologies Corporation Quad-tab u-washer

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980321A (en) * 1974-12-23 1976-09-14 Caterpillar Tractor Co. Hitch pin assembly for a tractor-scraper vehicle and the like
US4577891A (en) * 1983-10-27 1986-03-25 The United States Of America As Represented By The Secretary Of The Air Force Torque limiting collar
US4885834A (en) * 1988-10-04 1989-12-12 Beerman Paul J Method and device for removing wheel nuts and cap nuts from the outer wheel of a dual-wheel double-nut system
US6491441B2 (en) 1999-03-04 2002-12-10 Skf Industrie S.P.A. Tapered bearing unit
US7708509B1 (en) * 2009-05-08 2010-05-04 Bennett Bruce A Locking retainer for threaded fasteners
EP3088678A1 (en) * 2015-04-06 2016-11-02 United Technologies Corporation Tri-tab lock washer
EP3088677A1 (en) * 2015-04-06 2016-11-02 United Technologies Corporation Quad-tab u-washer
US9822667B2 (en) 2015-04-06 2017-11-21 United Technologies Corporation Tri-tab lock washer
US9822666B2 (en) 2015-04-06 2017-11-21 United Technologies Corporation Quad-tab U-washer

Also Published As

Publication number Publication date
CA953193A (en) 1974-08-20

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Owner name: ABC RAIL CORPORATION, A CORP. OF DE.

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