US3760536A - Sliding door wheel mounting structure - Google Patents

Sliding door wheel mounting structure Download PDF

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Publication number
US3760536A
US3760536A US00221965A US3760536DA US3760536A US 3760536 A US3760536 A US 3760536A US 00221965 A US00221965 A US 00221965A US 3760536D A US3760536D A US 3760536DA US 3760536 A US3760536 A US 3760536A
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Prior art keywords
gap
door
housing
wheel
sliding door
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Expired - Lifetime
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US00221965A
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T Wolak
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RAIL HOLDINGS Inc A CORP OF
RAIL HOLDINGS Inc Corp TRUST CENTER 1209 ORANGE ST WILMINGTON DE A CORP OF
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Evans Products Co
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Assigned to EVANS ENGINEERED PRODUCTS COMPANY, A CORP. OF DE reassignment EVANS ENGINEERED PRODUCTS COMPANY, A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: GROSSMAN'S INC.
Assigned to RAIL HOLDINGS, INC., A CORP. OF DE reassignment RAIL HOLDINGS, INC., A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: EVANS ENGINEERED PRODUCTS COMPANY
Assigned to RAIL HOLDINGS, INC., CORPORATION TRUST CENTER, 1209 ORANGE ST., WILMINGTON, DE A CORP. OF DE reassignment RAIL HOLDINGS, INC., CORPORATION TRUST CENTER, 1209 ORANGE ST., WILMINGTON, DE A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: EVANS ENGINEERED PRODUCTS COMPANY
Assigned to COLE TAYLOR BANK/MAIN reassignment COLE TAYLOR BANK/MAIN SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RAIL HOLDINGS, INC., A DE CORP.
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D19/00—Door arrangements specially adapted for rail vehicles
    • B61D19/003—Door arrangements specially adapted for rail vehicles characterised by the movements of the door
    • B61D19/005—Door arrangements specially adapted for rail vehicles characterised by the movements of the door sliding

Definitions

  • the objects of the present invention are to improve the wheel mounting structure and to facilitate repair or replacement of the same without removing the door from the track.
  • the invention contemplates the use of a cartridge unit comprising a housing, a mounting shaft, a roller bearing and a wheel applicable as a unit to a new door, or as a replacement for damaged parts mounting the door structure on the supporting track while the door is on the car.
  • FIG. 1 is a side view of a railway house car illustrating one embodiment of the present invention and including a sliding door and a lower framing member extending from end to end of the door and receiving spaced wheel assemblies which may be removed therefrom and replaced.
  • FIG. 2 is a detail side view on a larger scale of the lower left-hand corner of the door and wheel mounting as indicated in FIG. 1.
  • FIGS. 3 and 4 are detail vertical transverse sections on lines 3--3 and 44 of FIG. 2.
  • Door 1 includes a door lower panel sheet 3 offset outwardly at 5, downwardly at 6, inwardly at 7 and downwardly at 8 where it is welded to an inner panel sheet 9 and forms therewith a box-section framing member 10 extending substantially the full width of the door.
  • a short gap 11 in member 10 near each end of the door provides for the lateral passage therethrough of an inverted U-shaped wheel housing 12 having an upper horizontal portion 13 seated against the underside of the cut-away portion 14 of offset 5.
  • the lower portion of the outer leg of housing 12 overlaps a door track 15 carried by bracket 17 on a car underframe sill 18.
  • a shaft 19, roller bearing 20 and wheel 21 in housing 12 forms therewith a cartridge unit and the edges of the housing are welded at W to the edges of the gap in member 10 so that housing 12 forms a continuation of the offset portions of member 10 across the gap.
  • welds W may be burned away at B, the wheel housing assembly removed and replaced with a new cartridge, and freshly welded at W.
  • the wheel housing forms a continuation of the boxsection carriage housing and reinforces the lower portion of the door and in turn may be removed and replaced if necessary.
  • housing 12 is formed of thicker metal than member 10 and has a greater over-all transverse width so that its outer leg abuts the upright edges of the gap and may be welded to the housing as indicated.
  • a door as originally constructed may include the wheel housing unit as shown in FIG. 2, united at its ends and along its top with the door lower frame member, and may be removed for replacement of damaged wheel and other parts.
  • the invention is not limited to such original construction, and may be embodied in repairing a wheel housing formed by a continuous frame member 10 as present on the original door. It is only necessary to remove a section of the frame member and replace it with a cartridge as described.
  • the invention comprises the use of such combination of elements or other variation in details as included in the appended claims irrespective of the original door structure.
  • a railway sliding door structure comprising a lower horizontal framing member of box section having a relatively short gap in its outer and lower walls adjacent an end of the door, and a cartridge unit insertible and removable through said gap and including an inverted U-shaped housing secured in said gap, and including a transverse shaft mounted in the legs of said housing and a wheel rotatable on said shaft and projecting below the bottom wall of said box-section framing member.
  • a door track a lower box-section door framing member including an inner plate member extending substantially the full width of the door and opposing the inner side of said track, a parallel plate extending outwardly, downwardly and inwardly from the portion of said inner plate member above its lower edge and forming therewith a hollow member and having a relatively short portion removed and providing a gap with upright edges, and a wheel housing cartridge unit mounted in said gap and welded to said edges and forming a continuation of said framing member across said gap.
  • a lower panel outer plate member part with elements in the lower part offset outwardly and downwardly, and an inner plate secured to said outer plate above said offset part and extending downwardly and spaced laterally from said part and forming a hollow box-shaped reinforcement substantially along the full length of the door, there being a gap in said offset part, and a selfcontained wheel and housing unit fitting in said gap and secured to said offset elements and forming a continuation of the same across said gap.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wing Frames And Configurations (AREA)
  • Support Devices For Sliding Doors (AREA)

Abstract

A wheel mounting for a sliding door on an elongated track which facilitates initial installation, and later replacement, of the mounting without removal of the door from the car or disassembly of door elements or of wheel mounting elements.

Description

1 1 1 mte States Patent 1 1 9 5 Wolak Sept. 25, 1973 [54] SLIDING DOOR WHEEL MOUNTING 1,898,582 2/1933 Madland 16/99 STRUCTURE 1,946,549 2/1934 2,226,681 12/1940 [75] Inventor: Thomas J. Wolak, Cicero, 111. 2,274 373 3 1942 Assignee: Evans Products p y 2,344,903 3/1944 Shields 16/99 Plymouth, Mich. v Primary Examiner-Dennis L. Taylor 2 F 2] fled Jan 1972 Att0rneyRodney Bedell et a1. [21] Appl. No.: 221,965
52 U.S.C1. 49/426, 16/97 [571 ABSTRACT [51] Int. Cl E05d 13/00 A Wheel mounting for a Sliding door on an elongated [58] Field of Search 49/425, 426, 404, t k h f t l n d1 49/219, 220; 16/96 R 97 107 103 98 99 i es "g 1; "2 f p acemen o e moun mg W1 ou remova o e door from the car or disassembly of door elements or [56] uNlTE gfiii r gs giiENTs of wheel mounting elements.
1,826,049 10/1931 Cambell 49/426 3 Claims, 4 Drawing Figures PATENTEI] SEPZSIHH FIG 2 FIGA FIG,3
I SLIDING DOOR WHEEL MOUNTING STRUCTURE BACKGROUND OF THE INVENTION Sliding doors of the type illustrated, as usually applied to railway boxcars, are subject to rough usage which frequently necessitates replacement of a wheel and repair of the portion of the door framing mounting the wheel which may include a member of box section or inverted channel section extending the length of the door and form a housing for the wheel. Repair of a damaged mounting is difficult. It has been customary to remove the door from the car, burn through the framing member fore and aft of the damaged wheel assembly, bend the adjacent section upwardly and outwardly, remove the damaged wheel and mounting parts and substitute a similar assembly, then return the bent-up section to its original position, enclosing the wheel assembly, and weld the rebent part where it has been burned away.
SUMMARY OF THE INVENTION The objects of the present invention are to improve the wheel mounting structure and to facilitate repair or replacement of the same without removing the door from the track. The invention contemplates the use of a cartridge unit comprising a housing, a mounting shaft, a roller bearing and a wheel applicable as a unit to a new door, or as a replacement for damaged parts mounting the door structure on the supporting track while the door is on the car.
BRIEF DESCRIPTION Of THE DRAWINGS FIG. 1 is a side view ofa railway house car illustrating one embodiment of the present invention and including a sliding door and a lower framing member extending from end to end of the door and receiving spaced wheel assemblies which may be removed therefrom and replaced.
FIG. 2 is a detail side view on a larger scale of the lower left-hand corner of the door and wheel mounting as indicated in FIG. 1.
FIGS. 3 and 4 are detail vertical transverse sections on lines 3--3 and 44 of FIG. 2.
DETAILED DESCRIPTION Door 1 includes a door lower panel sheet 3 offset outwardly at 5, downwardly at 6, inwardly at 7 and downwardly at 8 where it is welded to an inner panel sheet 9 and forms therewith a box-section framing member 10 extending substantially the full width of the door. A short gap 11 in member 10 near each end of the door provides for the lateral passage therethrough of an inverted U-shaped wheel housing 12 having an upper horizontal portion 13 seated against the underside of the cut-away portion 14 of offset 5. The lower portion of the outer leg of housing 12 overlaps a door track 15 carried by bracket 17 on a car underframe sill 18.
A shaft 19, roller bearing 20 and wheel 21 in housing 12 forms therewith a cartridge unit and the edges of the housing are welded at W to the edges of the gap in member 10 so that housing 12 forms a continuation of the offset portions of member 10 across the gap.
When any part of the cartridge is damaged and replacement is necessary, welds W may be burned away at B, the wheel housing assembly removed and replaced with a new cartridge, and freshly welded at W. The wheel housing forms a continuation of the boxsection carriage housing and reinforces the lower portion of the door and in turn may be removed and replaced if necessary.
Preferably housing 12 is formed of thicker metal than member 10 and has a greater over-all transverse width so that its outer leg abuts the upright edges of the gap and may be welded to the housing as indicated.
It will be apparent that a door as originally constructed may include the wheel housing unit as shown in FIG. 2, united at its ends and along its top with the door lower frame member, and may be removed for replacement of damaged wheel and other parts. But the invention is not limited to such original construction, and may be embodied in repairing a wheel housing formed by a continuous frame member 10 as present on the original door. It is only necessary to remove a section of the frame member and replace it with a cartridge as described. The invention comprises the use of such combination of elements or other variation in details as included in the appended claims irrespective of the original door structure.
I claim:
1. A railway sliding door structure comprising a lower horizontal framing member of box section having a relatively short gap in its outer and lower walls adjacent an end of the door, and a cartridge unit insertible and removable through said gap and including an inverted U-shaped housing secured in said gap, and including a transverse shaft mounted in the legs of said housing and a wheel rotatable on said shaft and projecting below the bottom wall of said box-section framing member.
1 2. In a railway house car sliding door structure, a door track, a lower box-section door framing member including an inner plate member extending substantially the full width of the door and opposing the inner side of said track, a parallel plate extending outwardly, downwardly and inwardly from the portion of said inner plate member above its lower edge and forming therewith a hollow member and having a relatively short portion removed and providing a gap with upright edges, and a wheel housing cartridge unit mounted in said gap and welded to said edges and forming a continuation of said framing member across said gap.
3. In a railway house car sliding door structure, a lower panel outer plate member part with elements in the lower part offset outwardly and downwardly, and an inner plate secured to said outer plate above said offset part and extending downwardly and spaced laterally from said part and forming a hollow box-shaped reinforcement substantially along the full length of the door, there being a gap in said offset part, and a selfcontained wheel and housing unit fitting in said gap and secured to said offset elements and forming a continuation of the same across said gap.

Claims (3)

1. A railway sliding door structure comprising a lower horizontal framing member of box section having a relatively short gap in its outer and lower walls adjacent an end of the door, and a cartridge unit insertible and removable through said gap and including an inverted U-shaped housing secured in said gap, and including a transverse shaft mounted in the legs of said housing and a wheel rotatable on said shaft and projecting below the bottom wall of said box-section framing member.
2. In a railway house car sliding door structure, a door track, a lower box-section door framing member including an inner plate member extending substantially the full width of the door and opposing the inner side of said track, a parallel plate extending outwardly, downwardly and inwardly from the portion of said inner plate member above its lower edge and forming therewith a hollow member and having a relatively short portion removed and providing a gap with upright edges, and a wheel housing cartridge unit mounted in said gap and welded to said edges and forming a continuation of said framing member across said gap.
3. In a railway house car sliding door structure, a lower panel outer plate member part with elements in the lower part offset outwardly and downwardly, and an inner plate secured to said outer plate above said offset part and extending downwardly and spaced laterally from said part and forming a hollow box-shaped reinforcement substantially along the full length of the door, there being a gap in said offset part, and a self-contained wheel and housing unit fitting in said gap and secured to said offset elements and forming a continuation of the same across said gap.
US00221965A 1972-01-31 1972-01-31 Sliding door wheel mounting structure Expired - Lifetime US3760536A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317255A (en) * 1980-01-10 1982-03-02 Teams, Inc. Replacement wheel assembly for freight car door and method of installing
US6223471B1 (en) 1998-12-31 2001-05-01 Jerry Keith Barber Sliding door with wheel repair kit
US20140219720A1 (en) * 2014-04-09 2014-08-07 Caterpillar Paving Products Inc. Walkway assembly for paving machines
US20140219721A1 (en) * 2014-04-09 2014-08-07 Caterpillar Paving Products Inc. Walkway assembly for paving machines
CN105416324A (en) * 2015-12-04 2016-03-23 山东东山新驿煤矿有限公司 Mine man-riding vehicle safety door

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1826049A (en) * 1929-01-24 1931-10-06 Entpr Railway Equipment Co Car door
US1898582A (en) * 1931-05-23 1933-02-21 Camel Co Door elevating construction
US1946549A (en) * 1933-05-26 1934-02-13 Railway Metal Products Company Door fixture for railway cars
US2226681A (en) * 1938-01-20 1940-12-31 American Car & Foundry Co Metallic car door
US2274878A (en) * 1939-06-08 1942-03-03 American Car & Foundry Co Lift device for doors
US2344903A (en) * 1942-03-05 1944-03-21 American Car & Foundry Co Door lifting and tilting device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1826049A (en) * 1929-01-24 1931-10-06 Entpr Railway Equipment Co Car door
US1898582A (en) * 1931-05-23 1933-02-21 Camel Co Door elevating construction
US1946549A (en) * 1933-05-26 1934-02-13 Railway Metal Products Company Door fixture for railway cars
US2226681A (en) * 1938-01-20 1940-12-31 American Car & Foundry Co Metallic car door
US2274878A (en) * 1939-06-08 1942-03-03 American Car & Foundry Co Lift device for doors
US2344903A (en) * 1942-03-05 1944-03-21 American Car & Foundry Co Door lifting and tilting device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317255A (en) * 1980-01-10 1982-03-02 Teams, Inc. Replacement wheel assembly for freight car door and method of installing
US6223471B1 (en) 1998-12-31 2001-05-01 Jerry Keith Barber Sliding door with wheel repair kit
US20140219720A1 (en) * 2014-04-09 2014-08-07 Caterpillar Paving Products Inc. Walkway assembly for paving machines
US20140219721A1 (en) * 2014-04-09 2014-08-07 Caterpillar Paving Products Inc. Walkway assembly for paving machines
CN105416324A (en) * 2015-12-04 2016-03-23 山东东山新驿煤矿有限公司 Mine man-riding vehicle safety door
CN105416324B (en) * 2015-12-04 2018-06-19 山东东山新驿煤矿有限公司 A kind of mine pedestrian car safety door

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AS Assignment

Owner name: EVANS ENGINEERED PRODUCTS COMPANY, A CORP. OF DE,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GROSSMAN'S INC.;REEL/FRAME:004836/0849

Effective date: 19880224

Owner name: EVANS ENGINEERED PRODUCTS COMPANY, CORPORATION TRU

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:GROSSMAN'S INC.;REEL/FRAME:004836/0849

Effective date: 19880224

AS Assignment

Owner name: RAIL HOLDINGS, INC., A CORP. OF DE, DELAWARE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:EVANS ENGINEERED PRODUCTS COMPANY;REEL/FRAME:004889/0519

Effective date: 19880511

Owner name: RAIL HOLDINGS, INC., CORPORATION TRUST CENTER, 120

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:EVANS ENGINEERED PRODUCTS COMPANY;REEL/FRAME:004889/0519

Effective date: 19880511

AS Assignment

Owner name: RAIL HOLDINGS, INC., CORPORATION TRUST CENTER, 120

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:EVANS ENGINEERED PRODUCTS COMPANY;REEL/FRAME:004886/0619

Effective date: 19880511

AS Assignment

Owner name: COLE TAYLOR BANK/MAIN

Free format text: SECURITY INTEREST;ASSIGNOR:RAIL HOLDINGS, INC., A DE CORP.;REEL/FRAME:004905/0804

Effective date: 19880427