CN100425488C - Housing for long travel high capacity friction draft gear assembly - Google Patents
Housing for long travel high capacity friction draft gear assembly Download PDFInfo
- Publication number
- CN100425488C CN100425488C CNB2005800025559A CN200580002555A CN100425488C CN 100425488 C CN100425488 C CN 100425488C CN B2005800025559 A CNB2005800025559 A CN B2005800025559A CN 200580002555 A CN200580002555 A CN 200580002555A CN 100425488 C CN100425488 C CN 100425488C
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- Prior art keywords
- draft gear
- gear assemblies
- shell
- rolling stock
- pair
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- Gears, Cams (AREA)
- Vibration Dampers (AREA)
Abstract
A friction-type draft gear assembly includes a housing having an open front and a closed rear end with a first and second rear portions and a pair of ledge members disposed intermediate such first and second rear portions and enabling the draft gear assembly to fit into a draft gear pocket of a predetermined length. A first rear portion is adapted to receive a compressible cushioning element with a seating arrangement abutting one end thereof which extends longitudinally from the second portion of the closed rear end toward the open front portion. The open front end is adapted to receive a friction cushioning element which has a spring release mechanism for continuously urging the friction cushioning element outwardly from the compressible cushioning element thereby releasing such friction cushioning element after compression of such draft gear assembly. The open front end may incorporate additional side members for direct attachment to a coupler.
Description
Draw on the side of related application
The application relates to and requires to be filed in the preceence of No. 60/537294 U.S. Provisional Patent Application on January 16th, 2004.This application is also closely related with No. 10/927910 pending trial US Patent that is entitled as " Long Travel High CapacityFriction Draft Gear Assembly " of while submit applications, No. 10/928843 U.S. being entitled as " the LongBuff Short Draft Travel Draft Gear for Use in a 24.625Inch Pocket " patent that awaits the reply.These applications are transferred to cessionary of the present invention and the content of the application of awaiting the reply is incorporated by reference herein.
Technical field
The present invention generally relates to and is used to absorb usually by assembling and the railway rolling stock is run into during the train on the track structure is compiled car the buffering and the friction type draft gear assemblies of traction vibrations, the present invention relates to have the more friction type draft gear assemblies of long travel.
Background technology
Friction type draft gear assemblies is widely used for american railway industry and provides protection to rolling stock with traction by being absorbed in the requirement that must satisfy each accurate mechanism of american railway (AAR) rule and the vibrations under the buffering condition.In one aspect, hitch must can be kept minimum damping capaicty in its used life, and this minimum damping capaicty is defined as by AAR standard M-901-G that to record be 36000 ft. lbs at least in the experiment of dropping hammer.On the other hand, the action that AAR requires these hitches to realize has and is no more than 500000 pounds the back-pressure that acts on the lorry bottom girder, to prevent the fault of coupler shank.On the other hand, must to be engaged in length be in 24.62 inches the standard railway car pocket to hitch.
5152409,5590797 and No. 3368698 US Patent enjoying and be incorporated by reference herein by the assignee of the present invention relate to shared friction draft gear, and they are installed alignedly with the rolling stock center sill with a pair of preceding retainer and a pair of back retainer.These hitches comprise before whole being engaged between the retainer and back retainer and have near the anterior of opening wide of being provided with of retainer before a pair of and with the shell at retainer ingear osed top rear portion, a pair of back.Compressible buffer unit is positioned in the rear portion of shell.Friction shock-absorbing parts are set at the front portion of shell.Hitch also comprises the elasticity releasing mechanism, and the shock-absorbing parts that are used for will rubbing continuously outwards promote from compressible shock-absorbing parts, discharges these friction buffer parts thus behind these hitch pressurizeds.Compressible shock-absorbing parts typically be in 5152409 and No. 5590797 US Patent disclosed institute flexible be configured to and No. 3368698 US Patent in disclosed hydraulic package.
Existing known some railway requires by allowing about 4.75 inches extended stroke to realize that better protection to rolling stock is with meet requirements.Simultaneously, when the stroke of the hitch of current use only was 3.25 inches, it was in 24.625 inches the similar hitch depression that the hitch with this extended stroke must be engaged in length.
Summary of the invention
The invention provides a kind of friction draft gear assembly (draft gearassembly) that has higher damping capaicty and be engaged in the rolling stock in 24.62 inches long vehicle hooks of standard depression (draft gear pocket) in the center sill.The assembly that the friction draft gear assembly has end sealing and opens wide at the other end.Shell have close closed end two rear chamber and near with the front chamber of the open end of two rear chamber open communication.
Two rear chamber have the first bigger rear portion of close closed end and less second rear portion and a pair of centre, first and second rear portions that is arranged on is engaged in a pair of convex ridge part between the retainer afterwards to allow second portion.
First rear portion is suitable for holding the compressible shock-absorbing parts with a pair of elastic parts, and the elastic parts end wise extends to the front portion of opening wide from second portion.
Use two rear chamber to allow to be provided with longer elastic parts, described elastic parts combine with other parts to allow 4.75 inches more long travel distance and to the more important thing is that it is in 24.625 inches the standard hitch depression that the higher shock-absorbing performance of permission friction draft gear assembly acquisition is engaged in length simultaneously.
Perhaps, second rear portion is suitable for holding the compressible shock-absorbing parts as hydraulic package or known elastomeric pad stack or its any combination.
In addition, open end can provide the extendible portion of the standard yoke features that comprises the hitch (coupler) that is used to be directly connected in this rolling stock.
Therefore a main purpose of the present invention provides a kind of friction draft gear assembly of protecting rolling stock by shock-absorbing under traction and buffering condition.
Another object of the present invention provides a kind of friction draft gear assembly that has higher damping capaicty when current use draft gear assemblies.
Another object of the present invention provides a kind ofly has higher shock absorption and than the friction draft gear assembly of long travel distance.
Another object of the present invention provides a kind ofly has higher damping capaicty and than long travel distance and be engaged in 24.625 inches friction draft gear assemblies in the long depression simultaneously.
Another object of the present invention provide a kind of have higher damping capaicty and have than long travel distance, can direct mount to the friction draft gear assembly of railway vehicle coupler.
For those skilled in that art, by the understanding to being described in more detail below, of the present invention these will become more obvious with various other purposes and advantage, especially when describing with claims in conjunction with the accompanying drawings.
Description of drawings
Fig. 1 illustrates friction draft gear assembly of the present invention is installed in 24.625 inches block diagrams in the long railway car pocket especially;
Fig. 2 is the longitudinal cross-section figure of friction draft gear assembly of the present invention;
Fig. 3 has to be used for the block diagram of direct mount to the friction draft gear assembly of the present invention of the integral type yoke of railway vehicle coupler part.
The specific embodiment
Before the present invention will be described in more detail, note the similar parts that have identity function in order to illustrate, in some accompanying drawings, represent them with same numeral, this illustrates in the accompanying drawings.
The present invention is novel by adopting, have the containment structure that extends the rear portion makes and has 4.75 inches than the long travel distance and be engaged in 24.625 inches friction draft gear assemblies in the long depression and have higher damping capaicty, and this allows to cause than long travel distance and the more adjustment of the longer Flexible Design of Highly-absorbing ability more importantly.
With reference to the present invention, as shown in Figure 1, be set at generally by the friction draft gear assembly of the present invention of label 10 expression in the recess 102 generally by the center sill of label 100 expressions of rolling stock (not shown but in the field of business known).Preceding retainer 104 is installed on each sidepiece 103 of center sill 100 with axial relative back retainer 106 and forms the hitch depression 108 of 24.625 inches first predetermined length.The hook arm 112 of hitch 109 extends into depression 102 from typical coupler knuckle 110.Hitch 109 always is provided with along the longitudinal axis 116 of center sill 100.Hook 110 engagements of hitch 109 are carried out along rail to connect all rolling stocks from the similar part of second rolling stock or locomotive protrusion.The preceding driven structure 114 of hitch is set at hitch arm 112 and friction draft gear assembly 10 is middle to transmit the vibrations from coupler knuckle 110 equably.
Friction draft gear assembly 10 comprises the shell generally by label 12 expression, and shell 12 has towards first closed end of back retainer 106 and towards second open end of hitch 109.First closed end comprises first rear portion 13 with first predetermined cross-section and second predetermined length and has second predetermined cross-section and the 3rd predetermined length and axially align second rear portion 15 in first rear portion 13.Second rear portion 15 is set near the diapire 16 of closure 12 ends.A pair of convex ridge part 14 with preset width is set in the middle of first and second rear portions 13,15 respectively and is adjacent to the running surface 107 of 106 pairs of back retainers.The running surface 107 that this makes second rear portion 15 of first closed end extend into bottom girder 100 and pass through back retainer 106 to convex ridge part 14.Be appreciated that this second rear portion 15 is at least partially disposed in the middle of this back retainer 106.
The front portion 20 of second open end with shell 12 of the 3rd predetermined cross-section and the 4th predetermined length is set near first rear portion 13.This front portion 20 is axially in contrast to first closed end and be held and being communicated with of first closed end.Preferably, the 3rd predetermined cross-section equals first predetermined cross-section at first rear portion 13.
In the compressible shock absorbing device that second rear portion 15 is suitable for representing generally by label 18 was contained in, an end of compressible shock absorbing device was near at least a portion of the inside face 22 of the diapire 16 of shell 12.
Being arranged near diapire 16 inside faces 22 registration devices 36 is used between compressible shock-absorbing parts 18 pressurizeds and extended peroid that end of compressible shock-absorbing parts 18 is medially maintained in second rear portion 15 of shell 12.
Best as shown in Figure 2, compressible shock-absorbing parts 18 also extend into first rear portion 13.
Compressible shock-absorbing parts 18 also comprise US Patent disclosed at least one shock-absorbing elastic component and hydraulic package No. 3368698, or at least one elastomeric pad stack of No. 6488162 and No. 6446820 U.S. Patent Publications, yet compressible shock-absorbing parts 18 preferably comprise at least one shock-absorbing elastic component 28, and compressible shock-absorbing parts 18 more preferably comprise respectively a pair of first and second elastic compression device as first and second elastomeric elements 28,28a.Should have the 5th predetermined length and the first and second predetermined spring stiffnesss higher damping capaicty respectively to first and second elastomeric elements 28,28a with the friction draft gear assembly 10 realizing combining with shell 12 with second rear portion 15.
The base device 24 that adjoins double-type first and second elastic components 28,28a respectively is engaged in the shell 12 and vertically moves therein with extruding and releasable disposal of compressible shock-absorbing parts 18 respectively during application force and release force are put on draft gear assemblies 10.
Friction shock absorbing device generally by label 42 expressions is at least partially disposed in the front portion 20 of shell 12.Applying when being enough to make draft gear assemblies 10 to produce the application force of extruding, friction shock absorbing device 42 absorbs energy.
Those skilled in that art are to be understood that the stack of the predetermined thickness of the expose portion of second predetermined length, anterior 20 the 4th predetermined length, friction shock absorbing device 42 at first rear portion 13 and the driven structure 114 of hitch is substantially equal to or is slightly smaller than first predetermined length of hitch depression 108.
Friction shock absorbing device 42 comprises a pair of a pair of external fixation plate 44 that is horizontally arranged at interval that has inner friction surface 48 and be engaged in the opposed outer surface 46 of shell 12.
The a pair of removable plate 50 that is horizontally arranged at interval with basic thickness homogeneous of outer friction surface 52 and inner friction surface 54 and at least one the basic flat edges 56 in the middle of outer friction surface 52 and inner friction surface 54 is set in the open end of friction draft gear assembly 10.One edge, the 56 engagement seats devices 24 of inside face 54.Mesh the inner friction surface 48 of external fixation plate 44 movably and frictionally to small part outer friction surface 52.
A pair of laterally spaced conical plate 58 with outer friction surface 60 and relative inner friction surface 62 is set near this removable plate 50.Outer friction surface 60 is engaged at least a portion of the inner friction surface 54 of removable plate 50 movably and frictionally.
Friction shock absorbing device 42 also comprises a pair of laterally spaced wedge shoes 64 of at least a portion of outer friction surface 66 that has movably and frictionally be engaged in inner friction surface 62 at least a portion of bevelled adapter plate 58.At least a portion on one side 68 of wedge shoes 64 is engaged in base device 24 and has predetermined taper part 70 its relative edge.
Provide have an a pair of coupling cut the center wedge 72 of wimble fraction 74 with engagement wedge shoes 64 tapering parts, with the friction engagement of the shock absorbing device 42 that begins to rub.
Friction draft gear assembly 10 also comprises engagement and end wise when extension removes with the application force when extrusion friction draft gear assemblies 10 between base device 24 and the center wedge 72, outwards promotes friction shock absorbing devices 42 to discharge the spring release gear of the shock absorbing device that rubs from compressible shock absorbing device 18 continuously.
In the collision of coupler knuckle 110, damping vibration is passed to center wedge 72 from hitch arm 112 by the driven structure 114 of hitch, makes its effect wedge shoes 62 and compresses all shock-absorbing parts thus simultaneously.These parts provide the enough damping properties that dash vibrations to light and slow.Yet behind suitable stroke, the driven structure 114 of hitch is adjacent to the outer end of removable plate 50, causes removable plate 50 that the action by wedge shoes 64 is pressed together and the energy absorbing friction between the adapter plate 58,44.Along with the continuation of this action, because wedge shoes 64 is clamp-oned shock-absorbing mechanism 42, the pressure between the adjacently situated surfaces of the plate of clipping together increases in large quantities.To continue no longer to comprise the extruding of shock-absorbing parts 18 by the friction of shock-absorbing mechanism and the energy absorbing of compression with distributing until friction draft gear assembly 10.Shock-absorbing parts 18 extend into second rear portion 15 of shell 12 and realize long stroke, and the higher damping vibration that more importantly allows friction draft gear assembly 10 to absorb from hitch 109.
In the process that discharges friction draft gear assembly 10, compressible shock-absorbing parts 18 keep alignment by base device 24.
Best as shown in Figure 3, comprise integral yoke part friction draft gear assembly 10 have a pair of first relative driven structure hole 220 by the shell of label 200 expressions totally, they are set in first front portion 210 of second open end and have the 5th predetermined length and first predetermined altitude.Second front portion 216 stretches out from first front portion 210 and comprises a pair of vertical edges part 218 of location relatively.Each limit part 218 has second driven structure hole 222 of the 6th predetermined length and second predetermined altitude and the hole 224 that is installed on vertical setting of hitch arm 112 with standard hitch bolt (not shown).
As shown in Figure 1, the horizontal surface 217 of pair of opposing preferably is set at the centre of the limit part 218 that forms similar box structure, to strengthen the structural integrity of these vertical edges parts 218 in friction draft gear assembly 10 working processs.
Those skilled in that art are readily appreciated that and a pair of relative circular hole can be arranged in this horizontal surface 217 so that be fixed in hitch 109 as standard F handle hitch with hitch pin (not shown).
A pair of lordosis ridge part 211 with second preset width is separately positioned in the middle of first and second front portions 210,216 and the running surface 105 of close each preceding retainer 104, and wherein friction draft gear assembly 10 is positioned at the end of whole draft travel.
Although especially in conjunction with the accompanying drawings current preferred embodiment of the present invention and various alternate embodiment are described in detail, be appreciated that those skilled in that art can not break away from the claims scope or the present invention makes spiritually and/or visualize various additional corrections of the present invention and/or change.
Claims (23)
1. the shell of a rolling stock friction type draft gear assemblies, described friction type draft gear assemblies can absorb general when this class rolling stock being connected in the operation of train marshalling list and the buffering and the traction vibrations that run into when the normal running of described train marshalling list on track structure, this class buffering and traction vibrations are by the hitch and the driven structure transmission of hitch of described rolling stock, the driven structure of described hitch has first predetermined thickness, described draft gear assemblies be set at a pair of before in the center sill of rolling stock in the middle of retainer and the axially relative a pair of back retainer, retainer and back retainer form 24.625 inches hitch depression before described, and described shell comprises:
(a) second portion that first end, described first end comprise first with first predetermined cross-section and second predetermined length, have second predetermined cross-section and the 3rd predetermined length and axially align with described first, described second portion is sealed by end wall;
(b) second end, the first of close described first end of described second end is provided with and has the 4th predetermined length, and described second end axially also also is communicated with its described first with respect to described first end unlimitedly; It is characterized in that,
(c) a pair of convex ridge with preset width partly is set in the middle of described first and second parts and is adjacent to running surface of each back retainer, described a pair of convex ridge partly makes the described second portion of described first end extend into described bottom girder and the described running surface by described a pair of back retainer to be positioned at the centre of described back retainer, described extension realizes the stroke that described draft gear assemblies is longer, keeps simultaneously described draft gear assemblies is engaged in ability in described 24.625 inches depressions.
2. the shell of rolling stock friction type draft gear assemblies as claimed in claim 1 is characterized in that, described end wall has inside face.
3. the shell of rolling stock friction type draft gear assemblies as claimed in claim 2, it is characterized in that, described first end also comprises near the registration device the described inside face that is arranged on described end wall, medially to keep an end of described compressible shock-absorbing parts between the compression of the compressible shock-absorbing parts in being arranged on the described second portion of described first end and extended peroid, a described end adjoins with at least a portion of the described inside face of the described end wall of described first end of the described shell of sealing, and described compressible shock-absorbing parts extend into the described first of described first end from the described inside face end wise of described end wall.
4. the shell of rolling stock friction type draft gear assemblies as claimed in claim 3 is characterized in that, described compressible shock-absorbing parts comprise that at least one has the elastic compression device of the 5th predetermined length.
5. the shell of rolling stock friction type draft gear assemblies as claimed in claim 4 is characterized in that, described at least one elastic compression device is at least one in elastomeric element, hydraulic package, elastomeric pad stack and the combination thereof.
6. the shell of rolling stock friction type draft gear assemblies as claimed in claim 5, it is characterized in that described at least one elastic compression device is a pair of second elastomeric element that has first elastomeric element of the first predetermined spring stiffness and have the second predetermined spring stiffness.
7. the shell of rolling stock friction type draft gear assemblies as claimed in claim 3, it is characterized in that, the first of described first end is suitable for holding at least a portion on a surface with its axial opposite end of adjoining described compressible shock-absorbing parts and base device to vertically move in described shell is installed, to press with the power time-division don't push of release action on described draft gear assemblies and discharge described compressible shock-absorbing parts applying.
8. the shell of rolling stock friction type draft gear assemblies as claimed in claim 1, it is characterized in that, described second end is suitable for holding at least in part the friction shock absorbing device, energy when compressing described draft gear assemblies to absorb, and be engaged in and extend longitudinally in elasticity release gear between described base device and the described frictional buffer, outwards promote described friction shock absorbing device continuously from described compressible shock absorbing device when removing, thereby discharge described friction shock-absorbing unit with application force when the described draft gear assemblies of compression.
9. the shell of rolling stock friction type draft gear assemblies as claimed in claim 3, it is characterized in that the stack of first predetermined thickness of the expose portion of described the 4th predetermined length of described second predetermined length of described first, described second end, described friction shock absorbing device and the driven structure of described hitch is equal to or less than the hitch depression of 24.625 inchages.
10. the shell of rolling stock friction type draft gear assemblies as claimed in claim 1 is characterized in that, described second end also comprises from its outward extending a pair of vertical edges part that relatively is provided with.
11. the shell of rolling stock friction type draft gear assemblies as claimed in claim 10 is characterized in that, described each vertical edges is partly comprised the hole that is installed on vertical setting of described hitch arm with standard hitch bolt.
12. the shell of a rolling stock friction type draft gear assemblies, described friction type draft gear assemblies can absorb general buffering and the traction vibrations that run into when the normal running of described train marshalling list on track structure when this class rolling stock being connected in the operation of train marshalling list, this class buffering and traction vibrations are by the hitch transmission of described rolling stock, described draft gear assemblies be set at a pair of before in the center sill of rolling stock between retainer and the axially relative a pair of back retainer, retainer and back retainer form 24.625 inches hitch depression before described, and described shell comprises:
(a) first end, second trailing portion that described first end comprises first trailing portion with first predetermined cross-section and second predetermined length, have second predetermined cross-section and the 3rd predetermined length and axially align with described first, described second portion is sealed by end wall;
(b) second end, described second end comprises near first leading portion the described first that has the 3rd predetermined cross-section and the 4th predetermined length and be arranged on described first end, described second end axially relative with described first end and also is communicated with its described first trailing portion unlimitedly, and described second end also comprises from described first front portion and stretching out to be installed on second leading portion of described hitch;
(c) stack of described the 4th predetermined length of described second predetermined length of described by this first trailing portion and described first leading portion is equal to or less than the hitch depression of 24.625 inchages; It is characterized in that,
(d) a pair of back convex ridge with first preset width partly is set in the middle of described first and second trailing portions and is adjacent to the running surface of each back retainer, described a pair of back convex ridge partly make described second trailing portion of described first end extend in the middle of the retainer of described a pair of back bottom girder and by its running surface.
13. the shell of rolling stock friction type draft gear assemblies as claimed in claim 12 is characterized in that, described second end comprises having a pair of lordosis ridge part that is arranged on the second middle preset width of described first and second leading portions.
14. the shell of rolling stock friction type draft gear assemblies as claimed in claim 12, it is characterized in that described first leading portion comprises the first a pair of relative driven structure hole that has the 5th predetermined length and first predetermined altitude and be adjacent to described paired lordosis ridge part.
15. the shell of rolling stock friction type draft gear assemblies as claimed in claim 12 is characterized in that, described second leading portion comprises the vertical edges part of pair of opposing.
16. the shell of rolling stock friction type draft gear assemblies as claimed in claim 15, it is characterized in that, described second end comprises the second a pair of relative driven structure hole with the 6th predetermined length and second predetermined altitude, and each described second driven structure hole is set in the described vertical edges part of described second leading portion of described first leading portion and described second end one.
17. the shell of rolling stock friction type draft gear assemblies as claimed in claim 16 is characterized in that, described the 5th length of the described a pair of described first driven structure hole is more than or equal to described the 6th predetermined length of the described a pair of described second driven structure hole.
18. the shell of rolling stock friction type draft gear assemblies as claimed in claim 17 is characterized in that, described the 5th predetermined length of the described a pair of described first driven structure hole is greater than described the 6th predetermined length of the described a pair of described second driven structure hole.
19. the shell of rolling stock friction type draft gear assemblies as claimed in claim 15 is characterized in that, each described vertical edges partly comprises the hole of vertical setting, so that be installed on the hitch arm with standard hitch bolt.
20. the shell of rolling stock friction type draft gear assemblies as claimed in claim 12 is characterized in that, described second leading portion also comprises a pair of relative horizontal surface in the middle of the described vertical edges part that is arranged on the similar box structure of formation.
21. the shell of rolling stock friction type draft gear assemblies as claimed in claim 20 is characterized in that, described second end comprises a pair of relative hole that is arranged in the described relative horizontal surface, so that be fixed in the hitch arm with standard hitch pin.
22. the shell of rolling stock friction type draft gear assemblies as claimed in claim 12 is characterized in that, the 3rd predetermined cross-section of described first leading portion equals first predetermined cross-section of described first trailing portion.
23. the shell of rolling stock friction type draft gear assemblies as claimed in claim 12, it is characterized in that, described second open end is suitable for fully holding the damping by friction device, when pushing described draft gear assemblies, to absorb energy, and be engaged in and the elasticity release gear that between described base device and described damping by friction device, extends of end wise, being used to of being applied to work as outwards promotes described damping by friction device from described compressible shock absorption device after the power of pushing described draft gear assemblies removes continuously, thereby discharges described damping by friction device.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US53729404P | 2004-01-16 | 2004-01-16 | |
| US60/537,294 | 2004-01-16 | ||
| US10/927,911 US7264130B2 (en) | 2004-01-16 | 2004-08-27 | Housing for long travel high capacity friction draft gear assembly |
| US10/927,911 | 2004-08-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1910075A CN1910075A (en) | 2007-02-07 |
| CN100425488C true CN100425488C (en) | 2008-10-15 |
Family
ID=37700772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800025559A Expired - Fee Related CN100425488C (en) | 2004-01-16 | 2005-01-14 | Housing for long travel high capacity friction draft gear assembly |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN100425488C (en) |
| UA (1) | UA88897C2 (en) |
| ZA (1) | ZA200605818B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3447693A (en) * | 1967-11-02 | 1969-06-03 | Cardwell Westinghouse Co | Combined hydraulic cushion-friction clutch draft gear |
| US4261471A (en) * | 1978-12-11 | 1981-04-14 | Acf Industries, Incorporated | Fabricated backstop for railway cars |
| US4327839A (en) * | 1980-07-21 | 1982-05-04 | Dayco Corporation | Wear member for railway vehicle and method of making same |
| CN85101367A (en) * | 1985-04-01 | 1987-01-31 | 迈因纳企业公司 | Shock absorber |
| US4681040A (en) * | 1984-04-06 | 1987-07-21 | Trailer Train Company | Railroad car with universal coupling capability |
| CN1003076B (en) * | 1986-01-18 | 1989-01-18 | 采掘机械企业公司 | Draft gear for railroad car coupler sestem |
| CN1007969B (en) * | 1986-12-15 | 1990-05-16 | 采掘机械企业公司 | Split wedge draft gear with center friction plate |
| US5511676A (en) * | 1993-12-17 | 1996-04-30 | Maritime Steel And Foundries Limited | Coupler yoke with tapering key slot reinforcement |
| US5520294A (en) * | 1994-02-25 | 1996-05-28 | Mcconway & Torley Corporation | Support housing for a rotary end of a slackless drawbar |
| CN1067953C (en) * | 1994-03-04 | 2001-07-04 | 西屋空气制动器公司 | High capacity draft gear assembly |
-
2005
- 2005-01-14 UA UAA200609074A patent/UA88897C2/en unknown
- 2005-01-14 CN CNB2005800025559A patent/CN100425488C/en not_active Expired - Fee Related
-
2006
- 2006-07-14 ZA ZA200605818A patent/ZA200605818B/en unknown
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3447693A (en) * | 1967-11-02 | 1969-06-03 | Cardwell Westinghouse Co | Combined hydraulic cushion-friction clutch draft gear |
| US4261471A (en) * | 1978-12-11 | 1981-04-14 | Acf Industries, Incorporated | Fabricated backstop for railway cars |
| US4327839A (en) * | 1980-07-21 | 1982-05-04 | Dayco Corporation | Wear member for railway vehicle and method of making same |
| US4681040A (en) * | 1984-04-06 | 1987-07-21 | Trailer Train Company | Railroad car with universal coupling capability |
| CN85101367A (en) * | 1985-04-01 | 1987-01-31 | 迈因纳企业公司 | Shock absorber |
| CN1003076B (en) * | 1986-01-18 | 1989-01-18 | 采掘机械企业公司 | Draft gear for railroad car coupler sestem |
| CN1007969B (en) * | 1986-12-15 | 1990-05-16 | 采掘机械企业公司 | Split wedge draft gear with center friction plate |
| US5511676A (en) * | 1993-12-17 | 1996-04-30 | Maritime Steel And Foundries Limited | Coupler yoke with tapering key slot reinforcement |
| US5520294A (en) * | 1994-02-25 | 1996-05-28 | Mcconway & Torley Corporation | Support housing for a rotary end of a slackless drawbar |
| CN1067953C (en) * | 1994-03-04 | 2001-07-04 | 西屋空气制动器公司 | High capacity draft gear assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA200605818B (en) | 2007-11-28 |
| CN1910075A (en) | 2007-02-07 |
| UA88897C2 (en) | 2009-12-10 |
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