CA1170627A - Railway vehicle wear member and method of installing same - Google Patents
Railway vehicle wear member and method of installing sameInfo
- Publication number
- CA1170627A CA1170627A CA000372878A CA372878A CA1170627A CA 1170627 A CA1170627 A CA 1170627A CA 000372878 A CA000372878 A CA 000372878A CA 372878 A CA372878 A CA 372878A CA 1170627 A CA1170627 A CA 1170627A
- Authority
- CA
- Canada
- Prior art keywords
- wear
- wear member
- planar
- extension
- coupler
- 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
Links
Abstract
ABSTRACT OF THE DISCLOSURE
A railway vehicle wear member and method of installing same between a pair of relatively movable components of the railway vehicle are provided herein. Such wear member comprises a metal support having a planar supporting portion, a polymeric material having an antifriction wear surface engageable by the other component, and means attaching the polymeric material to the metal support and supporting same against the planar supporting portion. The improvement provides the support with an integral holding portion initially extending coplanar with the planar portion and with the holding portion being adapted to be formed transverse the planar portion. The holding portion is finally formed transverse the planar portion and against one component with the relatively movable com-ponents substantially in assembled relation. This holds the wear member against a particular movement relative to that component.
A railway vehicle wear member and method of installing same between a pair of relatively movable components of the railway vehicle are provided herein. Such wear member comprises a metal support having a planar supporting portion, a polymeric material having an antifriction wear surface engageable by the other component, and means attaching the polymeric material to the metal support and supporting same against the planar supporting portion. The improvement provides the support with an integral holding portion initially extending coplanar with the planar portion and with the holding portion being adapted to be formed transverse the planar portion. The holding portion is finally formed transverse the planar portion and against one component with the relatively movable com-ponents substantially in assembled relation. This holds the wear member against a particular movement relative to that component.
Description
This invention relates to a railway vehicle wear member and method of installing same between a pair of reIatively mo~able components of such railway vehicle.
. , ~
It is known in the art to provide a railway vehicle wear member for a pair of relatively movable components of such vehicle wherein such wear member comprises a metal support having a continuous planar support-ing surface, antifriction polymeric material, and means attaching the poly-meric material to the support and supporting same against the continuous supporting surface for the purpose o providing a substantially struc-10 turally self-supporting wear member. Such a wear member is generally provided with holding legs or brackets fixed to the metal support for the purpose of holding the wear member in position on one of the pair of relatively vable components. The present practice is to provide brackets or legs on the metal support of the wear member during manufacture and ; prior to shipment thereof to a user whereby such wear member may only~)be installed in position when a pair of relatively movable components sought to be protected are apart in a new installation or are first taken apart in a wear member replacement situation.~ An example of a wear member of this type has been proposed in United States patent application Serial No.
20 27,340, filed April 5, 1979, now United States Patent No, 4,238,039 issued Dec. 9, 1980. However, a wear member of this type adds to the total maintenance costs when used as a replacement part during maintenance and is thus not desirable for this type of use.
An object of a broad aspect of this invention is to provide a wear member for use between a pair of relatively mo~able components of a Failway vehicle which may be easily installed in position without disas-Z
.
'' 117~6~?
sembly of the relatively movable components and after removal of the wear member which lt replaces..
An object of another aspect of this invention is to provide a .novel method of installing a wear member.
By one aspect of this invention,.an improvement is provided in a.wear member for a railway vehicle wherein the vehicle comprises a pair of relatively movable components and the wear member is supported by one of the components and protects the components from wear during relative movement thereof and the wear member comprises: a metal support having a planar supporting portion; a polymeric material having an antifriction wear surface engageable by the other component; and means attaching the polymeric material.to the metal support and supporting same against the planar supporting portion;:the improvement wherein the support has an integral holding portion initially extending coplanar with the planar portion and with the holding portion being adapted to be formed transverse the planar portion, the holding portion having been finally formed trans-verse the planar.portion and against the one component with the relatively movable components substantially-in assembled relation to hold the wear member against a particular movement relative to the one component.
By a variant thereof, the holding portion comprises a.plurality of cooperating holding fingers.
By another variant thereof, the extension comprises a plurality ~ ~ ~ of fingers extending in parallel relation from the other side of the ; plar,ar portion.
By a variat1on thereof, the fingers are substantially identical and each has a substantially rectangular outline.
~ 3 -~,~ .
.~ ' '' .
4~6'~7' sy another variation thereof, the polymeric material comprises an ultra high molecular weight polyethylene.
By still another varlation thereof, the metal support is made of metal sheet with the holding leg~ planar portion, and extension bein~
~e~ed as i~ si~g~e-~iece str~ctu~e~
By still another aspect of this invention, an improvement is provlded in a wear member for a rallway veh;cle wherein the vehicle com-prises a pair of relatively movable components and the wear member is supported by one of the components and protects the components from wear during relative movement thereof and the wear member comprises; a metal support having a planar supporting-portion, a polymeric material having an antifriction wear surface engageable-by the other component; and means attaching the polymeric material to the metal support and supporting same against the planar supporting portion, the attaching means comprising a metal structure fixed to the planar supporting portion, the metal structure having openings therein which receive the polymeric material therethrough which serves as a matrix for the metal structure, and the metal structure serving to reinforce the poiymeric material and prevent cold flow thereof;
the improvement wherein the support has an integral holding por~ion initially extending coplanar with the-planar portion and with the holding portion being adapted to be bent transverse the planar portion, the holding portion having been finally bent transverse the planar portion and against the one ccmponent with the relatively movable components s~bstantially in assembled relation to hold the wear member against a particular movement relative to the one component.
By another aspect of this invention, an improvement is pro~
,, .~, :.
62~
vlded in a coupler carrier carrier wear nlember for a railway vehicle wherein the vehicle comprises a coupler assembly and a coupler carrier which are relatively movable and the coupler carrier wear member is sup-~. . ~
ported by the coupler carrier and protects the coupler assembly and thecoupler carrier from wear during relative movement thereof and the wear member comprises; a metal suppori having a planar supporting portion prb-vided with a pair of opposite side edges and a holding leg extending per-pendicular to one of the side edges, the holding leg being adapted to en~
gage the coupler carrier to hold the wear member against movement in one direction; a polymeric material defining an antifriction wear surface en-gageable by the coupler assembly; and means attaching the polymeric material to the metal support and supporting same against the planar supporting portion while providing integral reinforcement for the poly-meric material; the improvement comprising an extension initially extend-ing from the other of the side edges coplanar with the planar supporting portion and with the extension being adapted to be formed transverse the planar supporting portion, the extension having been finally formed against the coupler carrier with the coupler assembly and coupler carrier substantially in assembled relation to hold the wear member against movement in a direction opposite from the one direction.
By yet another aspect of this invention, an improvement is provided in a coupler carrier wear member for a railway vehicle wherein said vehicle comprises a coupler assembly and a coupler carrier which are relatively movable and the coupler carrier wear member is supported by the coupler carrier and protects the coupler assembly and the coupler carrier from wear during relative movement thereof and the wear member comprises;
a metal support having a planar supporting portion provided with a pair of ' ' ' : . -~Q~
opposite side edges and a holding leg extending perpendicular to one of the side edges, the holding leg being adapted to engage the coupler car-rier to hold the wear member against movement on one direction; a poly-.
meric material defining an antifriction wear surface engageable by the coupler assembly; and means attaching the polymeric material to the metal support and supporting same against the planar supporting portion, the attaching.means comprising a metal structure fixed to the planar support-ing portion, the metal structure having openings therein which receive the polymeric material therethrough which serves as a matrix for the metal structure, and the metal structure serving to reinforce the polymeric material and prevent cold flow thereof; the improvement comprising an extension initially extending from the other.of the side edges coplanar with the planar supporting portion and with the extension being adapted to be bent transverse the planar supporting portion, the extension having been finally bent against the coupler carrier with the coupler assembly and coupler carrier substantially in assembled relation to hold the wear member against movement in a direction opposite from the one direction.
By another aspect of this invention, an improvement is provided in a method of installing a wear member of a railway vehicle between a pair of relatively movable components thereof while maintaining the com-ponents in assembled relation, the components having a pair of wear sur-faces disposed opposite each other, the method comprising the steps of, providing the wear member comprising, a:support havi.ng a planar support-ing portion, a polymeric material having an antifriction wear surface en-gageable by the other component, and means attaching the polymeric mater-ial against the planar supporting portion of the support, and supporting the member against one of the components to protect the components from ,~ ~
~ 5 a -6~'7 wear during relative movement thereof, the improvement wherein the step of providing the wear member comprises: providing the support thereof with an integral holding portion extending coplanar with the planar por-tion; holding the wear surfaces apart with the components in assembled relation during the supporting step; and forming the extension transverse the planar portion and against the one component with the relatively mova-ble components substantially in~assembled relation to hold the wear member against a particular movement relative to the one component.
By a variant thereof, the step of forming the extension com-prises: bending the extension.
By another variant thereof, the step of providing the wear member comprises: providing the support thereof made of metal.
By a variation thereof, the step of providing the wear member comprises: providing the metal support thereof with the planar extension;
and the further step is provided of cutting the extension to define a plurality of cooperating holding fingers therein.
By another variation thereof, the cutting step comrpisesL cut-ting a plurality of equally spaced apart cuts in the extension to define a plurality of substantially identical hold;ng fingers in the extension.
By a further variant thereof, the cutting step comprises cut-ting the plurality of cuts in parallel relation to define the substantial~
ly identical holding fingers each having a rectangular outli-ne.
By yet another variation thereof, the forming step comprises bending the fingers substantially perpendicular to the planar portion and against the one component.
By another aspect of this invention, an improvement is provided ~ _ 5 b -in a method of protecting a pair of relatively movable components of a .
railway vehicle against excessive wear during relative movement thereof, the components having a pair of wear of wear surface disposed opposite each other, the method comprising the steps of, providing a wear member which comprises a support having a planar supporting portion, a polymeric mater-ial having an anti-friction wear surface, and means attaching the polymeric material against the planar supporting p~rtion of the support and disposing the wear member between the wear surfaces, the improvement wherein the step of providing the wear member comprises: providing the support thereof with an extension extending coplanar-with the planar supporting portion; where-in the disposing step comprises: holding-the wear surface apart with the components in assembled relation.and inserting the extension and the planar supporting portion of the wear member with the polymeric material attached therèon between the pair of wear surfaces so that the planar supporting portion engages the wear surface of one of the components and the antifric-tion surface of the polymeric material is adapted to engage the wear sur-face of the other of the components; and including the further step of forming the extension transverse the planar portion and against the one component with the relatively movable components substantially in assembled . .
relation to hold the wear member against a particular movement relative to ; the one component.
By a variant thereof, the forming step comprises bending the extension transverse the planar portion.
By another variant thereof, the extension comprises a plurality of cooperating holding fingers, and the forming step comprising: bending each of the fingers transverse the planar portion and against the one .
~ ~ ~ 5 c ~
A
component.
By still another aspect of this invention, an improvement is provided in a method of protecting a coupler assembly and a coupler carrier of a railway vehicle agains~ excessive wear during relative movement thereof, the assembly and carri.er having a pair of wear surfaces disposed opposite each other, the method comprising the steps of, provid-ing a wear member which comprises a support having a planar supporting por-tion provided with a pair of opposite side edges, a holding leg extending perpendicular to one of the side edges, a polymeric material having an antifriction wear surface, and means attaching the polymeric material against the planar supporting portion of the support, disposing the wear member between the wear surfaces, the improvement wherein the step of pro~
viding the wear member comprises providing the support thereof with an extension extending from the other of the side edges coplanar with the planar supporting portion; the disposing step comprises holding the wear surfaces apart with the components in assembled relation and inserting the extension and the planar supporting portion of the wear member with the polymeric material attached thereon between the pair of wear surfaces so that-the planar supporting portion engages-the wear surface of the coupler carrier and the antifriction surface.of the polymeric material is adapted to engage the wear surface of the coupler assembly; the disposing step further comprising inserting the wear member until the holding leg bhereof engages the coupler carrier to thereby hold the.wear member against move-ment in one direction; and comprising the further step of forming the extension transverse the planar supporting portion, against the coupler carrier with the coupler assembly and coupler carrier substantially in ~ - 5 d -~. ,. ' .
.
li7~6:~7 assembled relation to hold the wear member against movement in a direction opposite from the one direction.
By a variant thereof, the step,of holding the wear surfaces apart comprises: lifting the wear surface of the coupler assembly vertically away from the wear surface of the coupler carrier.
By a variation thereof, the extension is defined by a plurality of cooperating holding fingers, and the forming step comprises: bending each of the fingers perpendicular to the planar portion and against the coupler carrier.
In the accompanying drawings:
FIG. 1 is a fragmentary top plan view of an end portion of a railway freight car showing a coupler and a coupler carrier thereof and illustrating one exemplary embodiment of an aspect of this invention in the ., form of a coupler carrier wear member disposed between such coupler and coupler carrier wherein such wear member comprises a metal support having an extension which has been formed in position and a liner made of an antifriction polymeric material attached to the metal support;
FIG, 2 is a perspective view with parts broken away of the exemplary wear member of FIG. 1 and showing the manner in which holding 2G fingers comprising the-extension thereof are formed in position to hold the wear me~ber on the coupler carrier;
FIG. 3 is a fragmentary cross~sectional view.showing a portion of the coupler carrier and coupler of FIG. l with such coupler carrier and coupler in assembled relation and.with wear surfaces thereof held apart to facilitate installation of the wear member of an aspect of this inven-tion between such wear surfaces and illustrating the wear member at the ~ 5 e ~
~lt7Q6~
commencement of the installing action;
FIG, 4 is a view similar to FIG. 3 illustrating the wear member essentially in position between the coupler and the coupler carrier and prior to forming an extension portion of the metal support in position;
FIG. 5 is a view similar to FIG, 4 schematically showing the extension being formed in position; and FIG. 6 is a view similar to FIG. 5 showing the coupler against the wear member now interposed between the wear surfaces and schematically ; illustrating the final forming of the extension.
Reference~is now made-to FIG. 1 of the drawing which illustrates a fragmentary portion of an end of an exemplary railway vehicle 20. Such vehicle end has a coupler assembly or coupler 21 and a coupler carrier 22.
As described in the above-mentioned United States Patent No. 4,238,039, and as known in the art, the coupler assembly 21 and coupler carrier 22 are relatively movable and define the realtively movable components of the railway vehicle 20 which are described herein~
An exemplary embodiment of the wear member of an aspect of this invention is provided and shown in perspective view in FIG. 2. Such wear member is designated generally by the reference numeral 23. me wear mem-ber 23 is supported by one of the components 21, 22 and in this example of an aspect of the invention, the wear member 23 is supported by the coupler carrier 22. m e wear member 23 protects the components 21 and 22 and in particular the shank portion 24 of the coupler assembly 21 and the coupler carrier 22 from wear during relative movement thereof.
5 f _ 6~7 Reference is now made to FIGS 2 and 6 of the drawing for a re detailed presentation of the wear member 23. The wear member 23 comprises a rigid high-strength support which in this example is in the form of a metal support plate 25 which has a planar supporting portion 26 provided with a pair of opposite side edges consisting of an edge 30 at one extreme side thereof and an edge 31 at its opposite side. The wear member 23 also comprises a holding leg 32 which extends transverse, perpendicular in this example, to the side edge 30 and a basically planar extension, which is designated generally by the reference numeral 33, which extends coplanar to the planar supporting portion 26 and outwardly beyond the edge 31 by an extension length 34. The purpose of the ex-tension 33 and the manner in which such extension is utilized comprise this invention and will be described in detail subsequently.
The extension 33 is preferably comprised of a plurality of fin-gers which will be referred to as holding fingers. Each of such fingers is designated by the same reference numeral 35. The holding fingers 35 may be of any suitable configuration or of different configurations;
however, such fingers 35 are basically identical and are of roughly rectangular peripheral outline.
The wear member 23 also comprises a polymeric material in the form of a polymeric matrix material 36 which has an antifriction outer wear surface 37 and means attaching the polymeric material to the sup-port, i.e., against the planar supporting portion 26 of the support 25.
Such attaching means is illustrated in FIG. 2 and comprises an expanded metal structure 40. The expanded metal structure 40 may be attached to ` planar supporting portion 26 utilizing any technique known in the art, :.
y~ - 6 -;~1'7~ '7 e.g. welding, mechanical fastening, or other suitable techniques.
The expanded metal structure 40 has openings 41 therein which receive the polymeric matrix material 36 completely therethrough whereby the openings 41 provide ~ 6a optimum embedment of the metal structure 40 whereby such structure 40 provides reinforcement for and prevents cold flow of the polymeric material 36; with the metal structure being welded or otherwise fixed against the planar supporting portion 26 of the support plate 25, it will be appreciated that polymeric matrix material 36 is thus firmly attached to the support 25.
Having described the detailed construction of the wear member 23 and presented a detailed description of a pair of typical components (the coupler assembly 21 and coupler carrie~ 22) between which such wear member may be used, the detailed description will now proceed with a description of the improved method of installing wear member 23 in posi-tion in accordance with the teachings of aspects of this invention. In particular, the wear member of an aspect of this invention is particularly adapted to be installed during routine maintenance of the coupler assembly 21 and coupler carrier 22 with these two components 21-22 in assembled relation.
The coupler assembly 21 and coupler carrier 22 have wear sur-faces 43 and 44 respectively which are disposed opposite each other and the wear member 23 of an aspect of this invention is provided to prevent excessive wear of such surfaces 43 and 44, as is known in the art. In this example, the wear surface 43 of the coupler assembly 21 comprises the outside surface of a wear plate 45 which is suitably fixed to the coupler assembly 41, as by welding, or the like. The wear surface 44 comprises the outside surface of the basic metallic material of the coupler carrier 22, However, it will be appreciated that the wear surface 44 may also be provided as an outside surface of a special plate which may be fixed ,~ - 7 -117~ 7 in position to the basic metallic structure of the coupler carrier so as to have an exposed surface thereof defining the wear surface 44.
As indicated earlier the wear member 23 has a planar extension 33 which extends from the planar supporting portion 26 and is disposed coplanar therewith. The wear .
.
~17~:~6~7 member 23 is easily installed in position with the coupler assembly 21 and coupler carrier 22 basically in assembled relation as shown in FIG. 3 by disposing such wear member between the wear surfaces 43-44 while holding the wear surfaces 43 and 44 apart. This holding action is achieved with the coupler carrier 22 basically installed in its railway vehicle and merely by lifting vertically against the coupler assembly 21 utilizing a lifting device which is indicated schematically by an arrow 46 in FIG. 3. The lifting device 46 may be any suitable mechanical, pneumatic, or hydraulic device or jack. In addition, the lifting device 46 may comprise a lifting sling, or the like, associated with an overhead crane or lifting apparatus.
However, regardless of how the wear surfaces 43-44 are held apart, it will be appreciated that they are held apart a sufficient dis-tance, indicated at 47 in FIG. 3, to enable easy insertion of the wear member 23 therebetween. In particular, the extension 33 i8 first extended between and through the volume 48 defined by lifting device 46 between the surfaces 43-44 followed by extending through such volume the planar sup-porting portion 26 of the wear member 23 with the polymeric material 36 attached thereon. The wear member 23 is inserted through an opening 49 in the coupler carrier 22 and inserted between the wear surfaces 43 and 44 so that the bottom surface 50 of the planar supportion portion 26 of the support 25 engages the wear surface 44 of the coupler carrier 22.
With the wear member 23 in this position the antifriction surface 37 of the polymeric material 36 is particularly adapted to engage the wear sur-face 43 of the coupler assembly 21.
The step of inserting the wear member 23 in position is indi-,~ 8 -6~'7 cated schematically by the reference arrow 51 in FIG, 3 whereby the wear member 23 is inserted horizontally until the holding leg 32 thereof engages the coupler carrier as shown at 52 in FIG. 4 and thereby holds the wear member 23 against movement in one direction indicated by the arrow 54.
8a -.
1~ ,t~?~'7 In particular, the leg 32 holds the wear member 23 against an associated edge 53 of the coupler carrier 22 and prevents further movement horizon-tally in the direction 54. The holding leg 32 has a centrally disposed arcuate locating projection 55 thereon which engages a corresponding re-cess in the edge 53 and thereby centers and locates the wear member 23 while preventing movement thereof perpendicular to the direction 54.
Once the wear member 23 is inserted in position, in the manner illustrated in FIG. 4, the extension 33 is then formed transverse the planar supporting portion 26 and against the coupler carrier as shown at 56 in FIG. 5 and the forming action is achieved by bending the metal ex-tension 33 employing a suitable bending mechanism which is shown schemati-cally by an arrow 57. The initial bending action may be provided with the lifting device 46 still holding the coupler assembly 21 so that the wear surfaces 43 and 44 are apart. However, once the extension 33 has been partially formed or bent, the holding device 46 may be removed as illus-trated in FIG. 6 thereby allowing the weight of the coupler assembly 21 to hold the wear member 23:against the surface 44 whereby the device 57 may be further employed to form the extension 33 against an associated exposed surface 60 of the coupler carrier 22.
The forming of the extension 33 is achieved with optimum simplicity inasmuch as such extension is comprised of a plurality of substantially identical holding fingers 35 Further, by utilizing a plurality of fingers 35 the side edge 31 of the planar supporting portion may be precisely defined and the wear member 23 locked in position with optimum simplicity. The fingers 35 may be defined employing any technique known in the art and one technique which may be employed is to define ~_ g _ l~ ~t~6~7 extension 33 as a single-piece extension having length 34 as previously described and providing a plurality of equally spaced apart cuts 61 in the extension 33 to define the fingers 35.
- 9 a -, ~7~6~7 In this example, the fingers 35 are shown having substantially rectangular outlines. However, it is to be understood that such fingers may have other outlines, including trapezoidal, triangular, semicircular, and the like.
The support 25 comprising the wear member 23 of an aspect of this invention is preferably in the form of a single-piece support having the holding leg 32 and the extension 34 with its integral fingers 35 defined as a single piece metal structure ini~ially defined as a bendable high strength metal sheet or plate. However, it will be appreciated that the holding leg 32 need not necessarily be provided as part of the single-piece structure.
In this disclosure of aspects of the invention only one portion, i.e., extension 33, is shown as being formed in position on site and while maintaining the coupler 21 and coupler carrier 22 substantially assembled.
However, it will be appreciated that the holding leg portion 32 may also be formed in position if desired, whereby the wear member 23 may be pro-vided essentially in flat form. In this latter instance the holding leg 32 would be formed in position essentially as shown and described for the extension 33~
The wear member 23 of an aspect of this invention is shown as comprised of a polymeric matrix material which is suitably fixed to support 25 utili7ing expanded metal 40. However, it will be appreciated that the polymeric material with its antifriction surface 37 may be fixed in position utili7ing any suitable technique known in the art.
The metal support 25 is preferably a metal plate or sheet of uniform thickness throughout and free of holes, apertures, or the like.
,~- 10 -P6~
In addition, the expanded metal structure 40 may be any grid-like structure, or the like, which is easily fastened to the metal support 25 for the purpose of attaching the polymeric material 36 and holding same against support 25 as well as reinforcing the polymeric matrix 36 and preventing cold flow thereof.
- 10 a , .
. ' ' .
Ci 6'~'7 The polymeric material 36 may be any suitable material which provides an antifriction surface 37 which does not require conventional lubrication and is capable of being used between relatively movable com-ponents of a railway vehicle. Preferably such polymeric material is an ultra high molecular weight polymeric material. me ultra high molecular weight material may have a molecular weight ranging between 4 to 6 mil-lion. In addition, the ultra high molecular weight polymeric material is preferably polyethylene and the preferred technique for determining such molecular weight is referred to in the art as the intrinsic viscosity test and is widely used in the United States.
In this disclosure of aspeats of the invention the wear member 23 is in the form of a coupler carrier wear member. However, it will be appreciated that the concepts of other aspects of this invention are fully applicable to wear members for other relatively movable components of railway vehicles.
~ 11 r~
. , ~
It is known in the art to provide a railway vehicle wear member for a pair of relatively movable components of such vehicle wherein such wear member comprises a metal support having a continuous planar support-ing surface, antifriction polymeric material, and means attaching the poly-meric material to the support and supporting same against the continuous supporting surface for the purpose o providing a substantially struc-10 turally self-supporting wear member. Such a wear member is generally provided with holding legs or brackets fixed to the metal support for the purpose of holding the wear member in position on one of the pair of relatively vable components. The present practice is to provide brackets or legs on the metal support of the wear member during manufacture and ; prior to shipment thereof to a user whereby such wear member may only~)be installed in position when a pair of relatively movable components sought to be protected are apart in a new installation or are first taken apart in a wear member replacement situation.~ An example of a wear member of this type has been proposed in United States patent application Serial No.
20 27,340, filed April 5, 1979, now United States Patent No, 4,238,039 issued Dec. 9, 1980. However, a wear member of this type adds to the total maintenance costs when used as a replacement part during maintenance and is thus not desirable for this type of use.
An object of a broad aspect of this invention is to provide a wear member for use between a pair of relatively mo~able components of a Failway vehicle which may be easily installed in position without disas-Z
.
'' 117~6~?
sembly of the relatively movable components and after removal of the wear member which lt replaces..
An object of another aspect of this invention is to provide a .novel method of installing a wear member.
By one aspect of this invention,.an improvement is provided in a.wear member for a railway vehicle wherein the vehicle comprises a pair of relatively movable components and the wear member is supported by one of the components and protects the components from wear during relative movement thereof and the wear member comprises: a metal support having a planar supporting portion; a polymeric material having an antifriction wear surface engageable by the other component; and means attaching the polymeric material.to the metal support and supporting same against the planar supporting portion;:the improvement wherein the support has an integral holding portion initially extending coplanar with the planar portion and with the holding portion being adapted to be formed transverse the planar portion, the holding portion having been finally formed trans-verse the planar.portion and against the one component with the relatively movable components substantially-in assembled relation to hold the wear member against a particular movement relative to the one component.
By a variant thereof, the holding portion comprises a.plurality of cooperating holding fingers.
By another variant thereof, the extension comprises a plurality ~ ~ ~ of fingers extending in parallel relation from the other side of the ; plar,ar portion.
By a variat1on thereof, the fingers are substantially identical and each has a substantially rectangular outline.
~ 3 -~,~ .
.~ ' '' .
4~6'~7' sy another variation thereof, the polymeric material comprises an ultra high molecular weight polyethylene.
By still another varlation thereof, the metal support is made of metal sheet with the holding leg~ planar portion, and extension bein~
~e~ed as i~ si~g~e-~iece str~ctu~e~
By still another aspect of this invention, an improvement is provlded in a wear member for a rallway veh;cle wherein the vehicle com-prises a pair of relatively movable components and the wear member is supported by one of the components and protects the components from wear during relative movement thereof and the wear member comprises; a metal support having a planar supporting-portion, a polymeric material having an antifriction wear surface engageable-by the other component; and means attaching the polymeric material to the metal support and supporting same against the planar supporting portion, the attaching means comprising a metal structure fixed to the planar supporting portion, the metal structure having openings therein which receive the polymeric material therethrough which serves as a matrix for the metal structure, and the metal structure serving to reinforce the poiymeric material and prevent cold flow thereof;
the improvement wherein the support has an integral holding por~ion initially extending coplanar with the-planar portion and with the holding portion being adapted to be bent transverse the planar portion, the holding portion having been finally bent transverse the planar portion and against the one ccmponent with the relatively movable components s~bstantially in assembled relation to hold the wear member against a particular movement relative to the one component.
By another aspect of this invention, an improvement is pro~
,, .~, :.
62~
vlded in a coupler carrier carrier wear nlember for a railway vehicle wherein the vehicle comprises a coupler assembly and a coupler carrier which are relatively movable and the coupler carrier wear member is sup-~. . ~
ported by the coupler carrier and protects the coupler assembly and thecoupler carrier from wear during relative movement thereof and the wear member comprises; a metal suppori having a planar supporting portion prb-vided with a pair of opposite side edges and a holding leg extending per-pendicular to one of the side edges, the holding leg being adapted to en~
gage the coupler carrier to hold the wear member against movement in one direction; a polymeric material defining an antifriction wear surface en-gageable by the coupler assembly; and means attaching the polymeric material to the metal support and supporting same against the planar supporting portion while providing integral reinforcement for the poly-meric material; the improvement comprising an extension initially extend-ing from the other of the side edges coplanar with the planar supporting portion and with the extension being adapted to be formed transverse the planar supporting portion, the extension having been finally formed against the coupler carrier with the coupler assembly and coupler carrier substantially in assembled relation to hold the wear member against movement in a direction opposite from the one direction.
By yet another aspect of this invention, an improvement is provided in a coupler carrier wear member for a railway vehicle wherein said vehicle comprises a coupler assembly and a coupler carrier which are relatively movable and the coupler carrier wear member is supported by the coupler carrier and protects the coupler assembly and the coupler carrier from wear during relative movement thereof and the wear member comprises;
a metal support having a planar supporting portion provided with a pair of ' ' ' : . -~Q~
opposite side edges and a holding leg extending perpendicular to one of the side edges, the holding leg being adapted to engage the coupler car-rier to hold the wear member against movement on one direction; a poly-.
meric material defining an antifriction wear surface engageable by the coupler assembly; and means attaching the polymeric material to the metal support and supporting same against the planar supporting portion, the attaching.means comprising a metal structure fixed to the planar support-ing portion, the metal structure having openings therein which receive the polymeric material therethrough which serves as a matrix for the metal structure, and the metal structure serving to reinforce the polymeric material and prevent cold flow thereof; the improvement comprising an extension initially extending from the other.of the side edges coplanar with the planar supporting portion and with the extension being adapted to be bent transverse the planar supporting portion, the extension having been finally bent against the coupler carrier with the coupler assembly and coupler carrier substantially in assembled relation to hold the wear member against movement in a direction opposite from the one direction.
By another aspect of this invention, an improvement is provided in a method of installing a wear member of a railway vehicle between a pair of relatively movable components thereof while maintaining the com-ponents in assembled relation, the components having a pair of wear sur-faces disposed opposite each other, the method comprising the steps of, providing the wear member comprising, a:support havi.ng a planar support-ing portion, a polymeric material having an antifriction wear surface en-gageable by the other component, and means attaching the polymeric mater-ial against the planar supporting portion of the support, and supporting the member against one of the components to protect the components from ,~ ~
~ 5 a -6~'7 wear during relative movement thereof, the improvement wherein the step of providing the wear member comprises: providing the support thereof with an integral holding portion extending coplanar with the planar por-tion; holding the wear surfaces apart with the components in assembled relation during the supporting step; and forming the extension transverse the planar portion and against the one component with the relatively mova-ble components substantially in~assembled relation to hold the wear member against a particular movement relative to the one component.
By a variant thereof, the step of forming the extension com-prises: bending the extension.
By another variant thereof, the step of providing the wear member comprises: providing the support thereof made of metal.
By a variation thereof, the step of providing the wear member comprises: providing the metal support thereof with the planar extension;
and the further step is provided of cutting the extension to define a plurality of cooperating holding fingers therein.
By another variation thereof, the cutting step comrpisesL cut-ting a plurality of equally spaced apart cuts in the extension to define a plurality of substantially identical hold;ng fingers in the extension.
By a further variant thereof, the cutting step comprises cut-ting the plurality of cuts in parallel relation to define the substantial~
ly identical holding fingers each having a rectangular outli-ne.
By yet another variation thereof, the forming step comprises bending the fingers substantially perpendicular to the planar portion and against the one component.
By another aspect of this invention, an improvement is provided ~ _ 5 b -in a method of protecting a pair of relatively movable components of a .
railway vehicle against excessive wear during relative movement thereof, the components having a pair of wear of wear surface disposed opposite each other, the method comprising the steps of, providing a wear member which comprises a support having a planar supporting portion, a polymeric mater-ial having an anti-friction wear surface, and means attaching the polymeric material against the planar supporting p~rtion of the support and disposing the wear member between the wear surfaces, the improvement wherein the step of providing the wear member comprises: providing the support thereof with an extension extending coplanar-with the planar supporting portion; where-in the disposing step comprises: holding-the wear surface apart with the components in assembled relation.and inserting the extension and the planar supporting portion of the wear member with the polymeric material attached therèon between the pair of wear surfaces so that the planar supporting portion engages the wear surface of one of the components and the antifric-tion surface of the polymeric material is adapted to engage the wear sur-face of the other of the components; and including the further step of forming the extension transverse the planar portion and against the one component with the relatively movable components substantially in assembled . .
relation to hold the wear member against a particular movement relative to ; the one component.
By a variant thereof, the forming step comprises bending the extension transverse the planar portion.
By another variant thereof, the extension comprises a plurality of cooperating holding fingers, and the forming step comprising: bending each of the fingers transverse the planar portion and against the one .
~ ~ ~ 5 c ~
A
component.
By still another aspect of this invention, an improvement is provided in a method of protecting a coupler assembly and a coupler carrier of a railway vehicle agains~ excessive wear during relative movement thereof, the assembly and carri.er having a pair of wear surfaces disposed opposite each other, the method comprising the steps of, provid-ing a wear member which comprises a support having a planar supporting por-tion provided with a pair of opposite side edges, a holding leg extending perpendicular to one of the side edges, a polymeric material having an antifriction wear surface, and means attaching the polymeric material against the planar supporting portion of the support, disposing the wear member between the wear surfaces, the improvement wherein the step of pro~
viding the wear member comprises providing the support thereof with an extension extending from the other of the side edges coplanar with the planar supporting portion; the disposing step comprises holding the wear surfaces apart with the components in assembled relation and inserting the extension and the planar supporting portion of the wear member with the polymeric material attached thereon between the pair of wear surfaces so that-the planar supporting portion engages-the wear surface of the coupler carrier and the antifriction surface.of the polymeric material is adapted to engage the wear surface of the coupler assembly; the disposing step further comprising inserting the wear member until the holding leg bhereof engages the coupler carrier to thereby hold the.wear member against move-ment in one direction; and comprising the further step of forming the extension transverse the planar supporting portion, against the coupler carrier with the coupler assembly and coupler carrier substantially in ~ - 5 d -~. ,. ' .
.
li7~6:~7 assembled relation to hold the wear member against movement in a direction opposite from the one direction.
By a variant thereof, the step,of holding the wear surfaces apart comprises: lifting the wear surface of the coupler assembly vertically away from the wear surface of the coupler carrier.
By a variation thereof, the extension is defined by a plurality of cooperating holding fingers, and the forming step comprises: bending each of the fingers perpendicular to the planar portion and against the coupler carrier.
In the accompanying drawings:
FIG. 1 is a fragmentary top plan view of an end portion of a railway freight car showing a coupler and a coupler carrier thereof and illustrating one exemplary embodiment of an aspect of this invention in the ., form of a coupler carrier wear member disposed between such coupler and coupler carrier wherein such wear member comprises a metal support having an extension which has been formed in position and a liner made of an antifriction polymeric material attached to the metal support;
FIG, 2 is a perspective view with parts broken away of the exemplary wear member of FIG. 1 and showing the manner in which holding 2G fingers comprising the-extension thereof are formed in position to hold the wear me~ber on the coupler carrier;
FIG. 3 is a fragmentary cross~sectional view.showing a portion of the coupler carrier and coupler of FIG. l with such coupler carrier and coupler in assembled relation and.with wear surfaces thereof held apart to facilitate installation of the wear member of an aspect of this inven-tion between such wear surfaces and illustrating the wear member at the ~ 5 e ~
~lt7Q6~
commencement of the installing action;
FIG, 4 is a view similar to FIG. 3 illustrating the wear member essentially in position between the coupler and the coupler carrier and prior to forming an extension portion of the metal support in position;
FIG. 5 is a view similar to FIG, 4 schematically showing the extension being formed in position; and FIG. 6 is a view similar to FIG. 5 showing the coupler against the wear member now interposed between the wear surfaces and schematically ; illustrating the final forming of the extension.
Reference~is now made-to FIG. 1 of the drawing which illustrates a fragmentary portion of an end of an exemplary railway vehicle 20. Such vehicle end has a coupler assembly or coupler 21 and a coupler carrier 22.
As described in the above-mentioned United States Patent No. 4,238,039, and as known in the art, the coupler assembly 21 and coupler carrier 22 are relatively movable and define the realtively movable components of the railway vehicle 20 which are described herein~
An exemplary embodiment of the wear member of an aspect of this invention is provided and shown in perspective view in FIG. 2. Such wear member is designated generally by the reference numeral 23. me wear mem-ber 23 is supported by one of the components 21, 22 and in this example of an aspect of the invention, the wear member 23 is supported by the coupler carrier 22. m e wear member 23 protects the components 21 and 22 and in particular the shank portion 24 of the coupler assembly 21 and the coupler carrier 22 from wear during relative movement thereof.
5 f _ 6~7 Reference is now made to FIGS 2 and 6 of the drawing for a re detailed presentation of the wear member 23. The wear member 23 comprises a rigid high-strength support which in this example is in the form of a metal support plate 25 which has a planar supporting portion 26 provided with a pair of opposite side edges consisting of an edge 30 at one extreme side thereof and an edge 31 at its opposite side. The wear member 23 also comprises a holding leg 32 which extends transverse, perpendicular in this example, to the side edge 30 and a basically planar extension, which is designated generally by the reference numeral 33, which extends coplanar to the planar supporting portion 26 and outwardly beyond the edge 31 by an extension length 34. The purpose of the ex-tension 33 and the manner in which such extension is utilized comprise this invention and will be described in detail subsequently.
The extension 33 is preferably comprised of a plurality of fin-gers which will be referred to as holding fingers. Each of such fingers is designated by the same reference numeral 35. The holding fingers 35 may be of any suitable configuration or of different configurations;
however, such fingers 35 are basically identical and are of roughly rectangular peripheral outline.
The wear member 23 also comprises a polymeric material in the form of a polymeric matrix material 36 which has an antifriction outer wear surface 37 and means attaching the polymeric material to the sup-port, i.e., against the planar supporting portion 26 of the support 25.
Such attaching means is illustrated in FIG. 2 and comprises an expanded metal structure 40. The expanded metal structure 40 may be attached to ` planar supporting portion 26 utilizing any technique known in the art, :.
y~ - 6 -;~1'7~ '7 e.g. welding, mechanical fastening, or other suitable techniques.
The expanded metal structure 40 has openings 41 therein which receive the polymeric matrix material 36 completely therethrough whereby the openings 41 provide ~ 6a optimum embedment of the metal structure 40 whereby such structure 40 provides reinforcement for and prevents cold flow of the polymeric material 36; with the metal structure being welded or otherwise fixed against the planar supporting portion 26 of the support plate 25, it will be appreciated that polymeric matrix material 36 is thus firmly attached to the support 25.
Having described the detailed construction of the wear member 23 and presented a detailed description of a pair of typical components (the coupler assembly 21 and coupler carrie~ 22) between which such wear member may be used, the detailed description will now proceed with a description of the improved method of installing wear member 23 in posi-tion in accordance with the teachings of aspects of this invention. In particular, the wear member of an aspect of this invention is particularly adapted to be installed during routine maintenance of the coupler assembly 21 and coupler carrier 22 with these two components 21-22 in assembled relation.
The coupler assembly 21 and coupler carrier 22 have wear sur-faces 43 and 44 respectively which are disposed opposite each other and the wear member 23 of an aspect of this invention is provided to prevent excessive wear of such surfaces 43 and 44, as is known in the art. In this example, the wear surface 43 of the coupler assembly 21 comprises the outside surface of a wear plate 45 which is suitably fixed to the coupler assembly 41, as by welding, or the like. The wear surface 44 comprises the outside surface of the basic metallic material of the coupler carrier 22, However, it will be appreciated that the wear surface 44 may also be provided as an outside surface of a special plate which may be fixed ,~ - 7 -117~ 7 in position to the basic metallic structure of the coupler carrier so as to have an exposed surface thereof defining the wear surface 44.
As indicated earlier the wear member 23 has a planar extension 33 which extends from the planar supporting portion 26 and is disposed coplanar therewith. The wear .
.
~17~:~6~7 member 23 is easily installed in position with the coupler assembly 21 and coupler carrier 22 basically in assembled relation as shown in FIG. 3 by disposing such wear member between the wear surfaces 43-44 while holding the wear surfaces 43 and 44 apart. This holding action is achieved with the coupler carrier 22 basically installed in its railway vehicle and merely by lifting vertically against the coupler assembly 21 utilizing a lifting device which is indicated schematically by an arrow 46 in FIG. 3. The lifting device 46 may be any suitable mechanical, pneumatic, or hydraulic device or jack. In addition, the lifting device 46 may comprise a lifting sling, or the like, associated with an overhead crane or lifting apparatus.
However, regardless of how the wear surfaces 43-44 are held apart, it will be appreciated that they are held apart a sufficient dis-tance, indicated at 47 in FIG. 3, to enable easy insertion of the wear member 23 therebetween. In particular, the extension 33 i8 first extended between and through the volume 48 defined by lifting device 46 between the surfaces 43-44 followed by extending through such volume the planar sup-porting portion 26 of the wear member 23 with the polymeric material 36 attached thereon. The wear member 23 is inserted through an opening 49 in the coupler carrier 22 and inserted between the wear surfaces 43 and 44 so that the bottom surface 50 of the planar supportion portion 26 of the support 25 engages the wear surface 44 of the coupler carrier 22.
With the wear member 23 in this position the antifriction surface 37 of the polymeric material 36 is particularly adapted to engage the wear sur-face 43 of the coupler assembly 21.
The step of inserting the wear member 23 in position is indi-,~ 8 -6~'7 cated schematically by the reference arrow 51 in FIG, 3 whereby the wear member 23 is inserted horizontally until the holding leg 32 thereof engages the coupler carrier as shown at 52 in FIG. 4 and thereby holds the wear member 23 against movement in one direction indicated by the arrow 54.
8a -.
1~ ,t~?~'7 In particular, the leg 32 holds the wear member 23 against an associated edge 53 of the coupler carrier 22 and prevents further movement horizon-tally in the direction 54. The holding leg 32 has a centrally disposed arcuate locating projection 55 thereon which engages a corresponding re-cess in the edge 53 and thereby centers and locates the wear member 23 while preventing movement thereof perpendicular to the direction 54.
Once the wear member 23 is inserted in position, in the manner illustrated in FIG. 4, the extension 33 is then formed transverse the planar supporting portion 26 and against the coupler carrier as shown at 56 in FIG. 5 and the forming action is achieved by bending the metal ex-tension 33 employing a suitable bending mechanism which is shown schemati-cally by an arrow 57. The initial bending action may be provided with the lifting device 46 still holding the coupler assembly 21 so that the wear surfaces 43 and 44 are apart. However, once the extension 33 has been partially formed or bent, the holding device 46 may be removed as illus-trated in FIG. 6 thereby allowing the weight of the coupler assembly 21 to hold the wear member 23:against the surface 44 whereby the device 57 may be further employed to form the extension 33 against an associated exposed surface 60 of the coupler carrier 22.
The forming of the extension 33 is achieved with optimum simplicity inasmuch as such extension is comprised of a plurality of substantially identical holding fingers 35 Further, by utilizing a plurality of fingers 35 the side edge 31 of the planar supporting portion may be precisely defined and the wear member 23 locked in position with optimum simplicity. The fingers 35 may be defined employing any technique known in the art and one technique which may be employed is to define ~_ g _ l~ ~t~6~7 extension 33 as a single-piece extension having length 34 as previously described and providing a plurality of equally spaced apart cuts 61 in the extension 33 to define the fingers 35.
- 9 a -, ~7~6~7 In this example, the fingers 35 are shown having substantially rectangular outlines. However, it is to be understood that such fingers may have other outlines, including trapezoidal, triangular, semicircular, and the like.
The support 25 comprising the wear member 23 of an aspect of this invention is preferably in the form of a single-piece support having the holding leg 32 and the extension 34 with its integral fingers 35 defined as a single piece metal structure ini~ially defined as a bendable high strength metal sheet or plate. However, it will be appreciated that the holding leg 32 need not necessarily be provided as part of the single-piece structure.
In this disclosure of aspects of the invention only one portion, i.e., extension 33, is shown as being formed in position on site and while maintaining the coupler 21 and coupler carrier 22 substantially assembled.
However, it will be appreciated that the holding leg portion 32 may also be formed in position if desired, whereby the wear member 23 may be pro-vided essentially in flat form. In this latter instance the holding leg 32 would be formed in position essentially as shown and described for the extension 33~
The wear member 23 of an aspect of this invention is shown as comprised of a polymeric matrix material which is suitably fixed to support 25 utili7ing expanded metal 40. However, it will be appreciated that the polymeric material with its antifriction surface 37 may be fixed in position utili7ing any suitable technique known in the art.
The metal support 25 is preferably a metal plate or sheet of uniform thickness throughout and free of holes, apertures, or the like.
,~- 10 -P6~
In addition, the expanded metal structure 40 may be any grid-like structure, or the like, which is easily fastened to the metal support 25 for the purpose of attaching the polymeric material 36 and holding same against support 25 as well as reinforcing the polymeric matrix 36 and preventing cold flow thereof.
- 10 a , .
. ' ' .
Ci 6'~'7 The polymeric material 36 may be any suitable material which provides an antifriction surface 37 which does not require conventional lubrication and is capable of being used between relatively movable com-ponents of a railway vehicle. Preferably such polymeric material is an ultra high molecular weight polymeric material. me ultra high molecular weight material may have a molecular weight ranging between 4 to 6 mil-lion. In addition, the ultra high molecular weight polymeric material is preferably polyethylene and the preferred technique for determining such molecular weight is referred to in the art as the intrinsic viscosity test and is widely used in the United States.
In this disclosure of aspeats of the invention the wear member 23 is in the form of a coupler carrier wear member. However, it will be appreciated that the concepts of other aspects of this invention are fully applicable to wear members for other relatively movable components of railway vehicles.
~ 11 r~
Claims (22)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. In a wear member for a railway vehicle wherein said vehicle comprises a pair of relatively movable components and said wear member is supported by one of said components and protects said components from wear during relative movement thereof and said wear member comprises:
a metal support having a planar supporting portion; a polymeric material having an antifriction wear surface engageable by said other component;
and means attaching said polymeric material to said metal support and sup-porting same against said planar supporting portion; the improvement wherein said support has an-integral holding portion initially extending coplanar with said planar portion and with said holding portion being adapted to be formed transverse said planar portion, said holding portion having been finally formed transverse said planar portion and against said one component with said relatively movable components substantially in assembled relation to hold said wear member against a particular movement relative to said one component.
a metal support having a planar supporting portion; a polymeric material having an antifriction wear surface engageable by said other component;
and means attaching said polymeric material to said metal support and sup-porting same against said planar supporting portion; the improvement wherein said support has an-integral holding portion initially extending coplanar with said planar portion and with said holding portion being adapted to be formed transverse said planar portion, said holding portion having been finally formed transverse said planar portion and against said one component with said relatively movable components substantially in assembled relation to hold said wear member against a particular movement relative to said one component.
2. A wear member, as set forth in claim 1 in which said holding portion comprises a plurality of cooperating holding fingers.
3. A wear member as set forth in claim 2 in which said exten-sion comprises a plurality of fingers extending in parallel relation from said other side of said planar portion.
4. A wear member as set forth in claim 3 in which said fingers are substantially identical and each has a substantially rectangular outline.
5. A wear member as set forth in claim 3 in which said poly-meric material comprises an ultra high molecular weight polyethylene.
6. A wear member as set forth in claim 3 in which said metal support is made of metal sheet with said holding leg, planar portion, and extension being defined as a single-piece structure.
7. In a wear member for a railway vehicle wherein said vehicle comprises a pair of relatively movable components and said wear member is supported by one of said components and protects said components from wear during relative movement thereof and said wear member comprises; a metal support having a planar supporting portion, a polymeric material having an antifriction wear surface engageable by said other component; and means attaching said polymeric material to said metal support and supporting same against said planar supporting portion, said attaching means compris-inging a metal structure fixed to said planar supporting portion, said metal structure having openings therein which receive said polymeric material therethrough which serves as a matrix for said metal structure, and said metal structure serving to reinforce said polymeric material and prevent cold flow thereof; the improvement wherein said support has an integral holding portion initially extending coplanar with said planar portion and with said holding portion being adapted to be bent transverse said planar portion, said holding portion having been finally bent transverse said planar portion and against said one component with said relatively movable components substantially in assembled relation to hold said wear member against a particular movement relative to said one component.
8. In a coupler carrier wear member for a railway vehicle wherein said vehicle comprises a coupler assembly and a coupler carrier which are relatively movable and said coupler carrier wear member is supported by said coupler carrier and protects said coupler assembly and said coupler carrier from wear during relative movement thereof and said wear member comprises; a metal support having a planar supporting portion provided with a pair of opposite side edges and a holding leg extending perpendi-cular to one of said side edges, said holding leg being adapted to engage said coupler carrier to hold said wear member against movement in one direction; a polymeric material defining an antifriction wear surface en-gageable by said coupler assembly; and means attaching said polymeric material to said metal support and supporting same against said planar supporting portion while providing integral reinforcement for said poly-meric material; the improvement comprising an extension initially extend-ing from the other of said side edges coplanar with said planar supporting portion and with said extension being adapted to be formed transverse said planar supporting portion, said extension having been finally formed against said coupler carrier with said coupler assembly and coupler car-rier substantially in assembled relation to hold said wear member against movement in a direction opposite from said one direction.
9. In a coupler carrier wear member for a railway vehicle wherein said vehicle comprises a coupler assembly and a coupler carrier which are relatively movable and said coupler carrier wear member is supported by said coupler carrier and protects said coupler assembly and said coupler carrier from wear during relative movement thereof and said wear member comprises; a metal support having a planar supporting portion provided with a pair of opposite side edges and a holding leg extending perpendicular to one of said side edges, said holding leg being adapted to engage said coupler carrier to hold said wear member against movement in one direction; a polymeric material defining an antifriction wear sur-face engageable by said coupler assembly; and means attaching said poly-meric material to said metal support and supporting same against said planar supporting portion, said attaching means comprising a metal struc-ture fixed to said planar supporting portion, said metal structure having openings therein which receive said polymeric material therethrough which serves as a matrix for said metal structure, and said metal structure serving to reinforce said polymeric material and prevent cold flow there-of; the improvement comprising an extension initially extending from the other of said side edges coplanar with said planar supporting portion and with said extension being adapted to be bent transverse said planar sup-porting portion, said extension having been finally bent against said coupler carrier with said coupler assembly and coupler carrier substanti-ally in assembled relation to hold said wear member against movement in a direction opposite from said one direction.
10. In a method of installing a wear member of a railway vehicle between a pair of relatively movable components thereof while maintaining said components in assembled relation, said components having a pair of wear surfaces disposed opposite each other, said method com-prising the steps of providing said wear member comprising, a support hav-ing a planar supporting portion, a polymeric material having an antifric-tion wear surface engageable by said other component, and means attaching said polymeric material against said planar supporting portion of said support, and supporting said member against one of said components to protect said components from wear during relative movement thereof, the improvement wherein said step of providing said wear member comprises.
providing said support thereof with an integral holding portion extending coplanar with said planar portion; holding said wear surfaces apart with said components in assembled relation during said supporting step; and forming s&id extension transverse said planar portion and against said one component with said relatively movable components substantially in assembled relation to hold said wear member against a particular movement relative to said one component.
providing said support thereof with an integral holding portion extending coplanar with said planar portion; holding said wear surfaces apart with said components in assembled relation during said supporting step; and forming s&id extension transverse said planar portion and against said one component with said relatively movable components substantially in assembled relation to hold said wear member against a particular movement relative to said one component.
11, A method as set forth in claim 10 in which said step of forming said extension comprises: bending said extension.
12. A method as set forth in claim 10 in which said step of providing said wear member comprises: providing said support thereof made of metal.
13. A method as set forth in claim 12 in which said step of providing said wear member comprises providing said metal support thereof with said planar extension and comprising the further step of cutting said extension to define a plurality of cooperating holding fingers therein.
14. A method as set forth in claim 13 in which said cutting step comprises cutting a plurality of equally spaced apart cuts in said extension to define a plurality of substantially identical holding fin-gers in said extension.
15. A method as set forth in claim 14 in which said cutting step comprises cutting said plurality of cuts in parallel relation to de-fine said substantially identical holding fingers each having a rectangu-lar outline.
16. A method as set forth in claim 13 in which said forming step comprises bending said fingers substantially perpendicular to said planar portion and against said one component.
17. In a method of protecting a pair of relatively movable components of a railway vehicle against excessive wear during relative movement thereof, said components having a pair of wear surfaces disposed opposite each other, said method comprising the steps of providing a wear member which comprises a support having a planar supporting portion, a polymeric material having an anti friction wear surface, and means attaching said polymeric material against said planar supporting portion of said support and disposing said wear member between said wear surfaces, the improvement wherein said step of providing said wear member comprises providing said support thereof with an extension extending coplanar with said planar supporting portion; said disposing step comprises holding said wear surface apart with said components in assembled relation and inserting said extension and said planar supporting portion of said wear member with said polymeric material attached thereon between said pair of wear surfaces so that said planar supporting portion engages the wear surface of one of said components and said antifriction surface of one of said components and said antifriction surface of said poly-meric material is adapted to engage the wear surface of the other of said components; and comprising the further step of forming said extension transverse said planar portion and against said one component with said relatively movable components substantially in assembled relation to hold said wear member against a particular movement relative to said one com-ponent.
18. A method as set forth in claim 17 in which said forming step comprises: bending said extension transverse said planar portion.
19. A method as set forth in claim 18 in which said extension comprises: a plurality of cooperating holding fingers; and said forming step comprises: bending each of said fingers transverse said planar portion and against said one component.
20. In a method of protecting a coupler assembly and a coupler carrier of a railway vehicle against excessive wear during relative movement thereof, said assembly and carrier having a pair of wear surfaces disposed opposite each other, said method comprising the steps of provid-ing a wear member which comprises a support having a planar supporting portion provided with a pair of opposite side edges, a holding leg ex-tending perpendicular to one of said side edges, a polymeric material hav-ing an antifriction wear surface, and means attaching said polymeric material against said planar supporting portion of said support, dispos-ing said wear member between said wear surfaces, the improvement wherein said step of providing said wear member comprises: providing said support thereof with an extension extending from the other of said side edges coplanar with said planar supporting portion; said disposing step com-prises holding said wear surfaces apart with said components in assembled relation and inserting said extension and said planar supporting portion of said wear member with said polymeric material attached thereon be-tween said pair of wear surfaces so that the planar supporting portion engages the wear surface of said coupler carrier and said antifriction surface of said polymeric material is adapted to engage the wear surface of said coupler assembly; said disposing step further comprising inserting said wear member until said holding leg thereof engages said coupler car-rier to thereby hold said wear member against movement in one direction;
and comprising the further step of forming said extension transverse said planar supporting portion, against said coupler carrier with said coupler assembly and coupler carrier substantially in assembled relation to hold said wear member against movement in a direction opposite from said one direction.
and comprising the further step of forming said extension transverse said planar supporting portion, against said coupler carrier with said coupler assembly and coupler carrier substantially in assembled relation to hold said wear member against movement in a direction opposite from said one direction.
21. A method as set forth in claim 20 in which said step of holding said wear surfaces apart comprises: lifting the wear surface of said coupler assembly vertically away from the wear surface of said coupler carrier.
22. A method as set forth-in claim 21 in which said extension is defined by a plurality of cooperating holding fingers; and said forming step comprises: bending each of said fingers perpendicular to said planar portion and against said coupler carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000372878A CA1170627A (en) | 1981-03-12 | 1981-03-12 | Railway vehicle wear member and method of installing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000372878A CA1170627A (en) | 1981-03-12 | 1981-03-12 | Railway vehicle wear member and method of installing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1170627A true CA1170627A (en) | 1984-07-10 |
Family
ID=4119437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000372878A Expired CA1170627A (en) | 1981-03-12 | 1981-03-12 | Railway vehicle wear member and method of installing same |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1170627A (en) |
-
1981
- 1981-03-12 CA CA000372878A patent/CA1170627A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1082238B1 (en) | Reinforced beam assembly | |
| US5605353A (en) | Vehicle chassis with energy management | |
| CA1159094A (en) | Intrusion resisting strap for automobile doors | |
| US8689421B2 (en) | Method of making disc brake pads | |
| US8505698B2 (en) | Brake pad | |
| CA2088968C (en) | Cargo tiedown anchor | |
| US20020101086A1 (en) | Bumper system for vehicles | |
| DE69624396D1 (en) | Optional extension of the creep mode of an automatic clutch and automatic transmission equipped with it for motor vehicles | |
| CA2235793A1 (en) | Energy-absorbing device | |
| EP1159159A1 (en) | Laminate reinforced beam with tapered polymer layer | |
| KR980002594A (en) | Glass fixture | |
| US5470107A (en) | Energy absorbing steering column mounting | |
| AU2007254601A1 (en) | Method, assembly and device for restraining cargo | |
| KR100324956B1 (en) | Structure for mounting seat of automobile | |
| CA2348605C (en) | Bracket assembly | |
| CA1170627A (en) | Railway vehicle wear member and method of installing same | |
| US4261472A (en) | Railway coupler wear member | |
| US4333222A (en) | Method of eliminating creep in screw joints or riveted joints | |
| EP1075991B1 (en) | Support assembly for motor vehicles | |
| GB2183450A (en) | Safety belt assembly | |
| EP1690019B1 (en) | Friction wedge with mechanical bonding matrix augmented composition liner material | |
| US4444609A (en) | Wear member for railway vehicle and method of making same | |
| US6206214B1 (en) | Non-metallic coupler carrier wear plate for a railcar | |
| CA1205328A (en) | Wear member for railway vehicle and method of making same | |
| GB2223192A (en) | A method of producing a bracket for a motor vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |