US3830166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motorized swivel truck for rail vehicles, especially streetcars
Assignee: Waggonfabrik Talbot GmbH and Co KG
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Filing: 1973-06-08
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Granted: 1974-08-20
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Expires: 1993-06-08
Abstract
Abstract A motorized swivel truck for rail vehicles, especially streetcars, having a truck frame on which a cradle frame lying transversely of the direction of travel is supported by an air spring bellows, and the car body rests upon the cradle frame through an annular ball bearing which permits wide swiveling of the swivel truck. The swivel truck frame consists of two longitudinal members having a generally underslung configuration and whose middle, underslung portion has an open cross-sectional profile, and two transverse members which are disposed between the wheel axles and have a likewise open cross-sectional profile and which have a generally arched configuration, and whose ends are welded to the end portions of the longitudinal members. Owing to the underslung and arched configurations and the open crosssectional profiles the swivel truck frame is flexible, so that the wheel bearings may be mounted with very stiff springing in the end portions of the longitudinal members. The motor is suspended on the cross members by resiliently yielding means such that its drive shaft lies parallel to the direction of travel, the driving of the wheel axles is performed through a bevel gear transmission and a flexible coupling, and the air spring bellows are located adjacent the ends of the cradle frame.
Inventors
- 👤 H Dieling
- 👤 M Schindehutte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:56
CPC Classifications
B; B61; B61F; B61F5/00; B61F5/50; B61F5/52; B61D; B61D13/00; B61F3/00; B61F3/02; B61F3/04; B61F5/02; B61F5/04; B61F5/10; B61F5/14; B61F5/144; B61F5/16; B61F5/26; B61F5/30; B61F5/305; B61H; B61H11/00; B61H11/14; B61H7/00; B61H7/02; B61H7/04; B61H7/06; B61H7/08
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
192 words
A motor powered swivel truck for rail vehicles, especially for street cars, comprising a swivel truck frame, a cradle frame, an air spring bellows disposed between said swivel truck frame and said cradle frame, an annular ball bearing disposed between the cradle frame and a car body and connected to said car body through its upper race, an electric motor disposed on the swivel truck frame, said swivel truck frame comprising two longitudinal members, the middle portion of each being disposed at a level below the end portions thereof and having an open profile, the end portions thereof having a closed profile and having recesses for receiving wheel bearings, a pair of cross members, each of which is disposed between the wheel axles and has an open profile and a middle portion which is disposed at a level above its end portions, the end portions of said cross members being welded to the end portions of the longitudinal members, said air spring bellows being disposed adjacent the ends of the cradle frame, said motor being dispoSed from the cross members such that its drive shaft lies parallel to the direction of travel.
Claim 2
Dependent Claim
192 words
A motor powered swivel truck for rail vehicles, especially for street cars, comprising a swivel truck frame, a cradle frame, an air spring bellows disposed between said swivel truck frame and said cradle frame, an annular ball bearing disposed between the cradle frame and a car body and connected to said car body through its upper race, an electric motor disposed on the swivel truck frame, said swivel truck frame comprising two longitudinal members, the middle portion of each being disposed at a level below the end portions thereof and having an open profile, the end portions thereof having a closed profile and having recesses for receiving wheel bearings, a pair of cross members, each of which is disposed between the wheel axles and has an open profile and a middle portion which is disposed at a level above its end portions, the end portions of said cross members being welded to the end portions of the longitudinal members, said air spring bellows being disposed adjacent the ends of the cradle frame, said motor being dispoSed from the cross members such that its drive shaft lies parallel to the direction of travel.
Claim 3
Dependent Claim
183 words
A motor powered swivel truck for rail vehicles, especially for streetcars, comprising a swivel truck frame, a cradle frame, an air spring bellows disposed between said swivel truck frame and said cradle frame, an annular ball bearing between the cradle frame and a car body, and an electric motor disposed on said swivel truck frame, said swivel truck frame comprising two longitudinal members, each of whose middle portion is disposed at a level below its end portions and has an open profile, said end portions having a closed profile and recesses for receiving wheel bearings, a pair of cross members disposed between the wheel axles and having an open profile and having ends welded to the end portions of said longitudinal members, said air bellows being disposed toward the end of the cradle frame, a gripping bead of the air spring bellows being joined to a rim mounted in the middle of one of the longitudinal members, another gripping bead of said air spring bellows being joined to a rim affixed to said cradle frame, said motor being suspended from said cross members.
Claim 4
Dependent Claim
183 words
A motor powered swivel truck for rail vehicles, especially for streetcars, comprising a swivel truck frame, a cradle frame, an air spring bellows disposed between said swivel truck frame and said cradle frame, an annular ball bearing between the cradle frame and a car body, and an electric motor disposed on said swivel truck frame, said swivel truck frame comprising two longitudinal members, each of whose middle portion is disposed at a level below its end portions and has an open profile, said end portions having a closed profile and recesses for receiving wheel bearings, a pair of cross members disposed between the wheel axles and having an open profile and having ends welded to the end portions of said longitudinal members, said air bellows being disposed toward the end of the cradle frame, a gripping bead of the air spring bellows being joined to a rim mounted in the middle of one of the longitudinal members, another gripping bead of said air spring bellows being joined to a rim affixed to said cradle frame, said motor being suspended from said cross members.
Claim 5
Dependent Claim
46 words
A motorized swivel truck according to claim 1 wherein a rim is joined to an inner gripping bead of said air spring bellows which is disposed on a cylinder which is closed with the exception of an aperture within the rim and serves as additional volume.
Claim 6
Dependent Claim
179 words
A motorized swivel truck for rail vehicles, especially for streetcars, comprising a swivel truck frame, a cradle frame, air spring bellows disposed between said swivel frame and said cradle frame, an annular ball bearing between said cradle frame and a car body, an electric motor disposed on the swivel truck frame, said swivel truck frame comprising two longitudinal members whose middle portion is disposed beneath the end portions and has an I profile, said end portions having a box profile and recesses to receive wheel bearings, said cross members having an I profile, and disposed between the wheel axles, the middle portion of each of said cross members being disposed on a higher level than the ends thereof, said ends welded to the box profile end portions of the longitudinal members, said air spring bellows being disposed adjacent the ends of the cradle frame such that their centers lie outside of the vertical plane passing through the wheel bearings, said motor being suspended from said cross members such that its drive shaft lies parallel to the direction of travel.
Claim 7
Dependent Claim
179 words
A motorized swivel truck for rail vehicles, especially for streetcars, comprising a swivel truck frame, a cradle frame, air spring bellows disposed between said swivel frame and said cradle frame, an annular ball bearing between said cradle frame and a car body, an electric motor disposed on the swivel truck frame, said swivel truck frame comprising two longitudinal members whose middle portion is disposed beneath the end portions and has an I profile, said end portions having a box profile and recesses to receive wheel bearings, said cross members having an I profile, and disposed between the wheel axles, the middle portion of each of said cross members being disposed on a higher level than the ends thereof, said ends welded to the box profile end portions of the longitudinal members, said air spring bellows being disposed adjacent the ends of the cradle frame such that their centers lie outside of the vertical plane passing through the wheel bearings, said motor being suspended from said cross members such that its drive shaft lies parallel to the direction of travel.
Claim 8
Dependent Claim
186 words
A motorized swivel truck for rail vehicles, especially for streetcars, comprising a swivel truck frame, a cradle frame, an air spring bellows disposed between said swivel truck and said cradle frame, an annular ball bearing disposed between said cradle frame and a car body, an electric motor disposed on said swivel truck frame, said swivel truck frame comprising two longitudinal members each of whose middle portion is disposed on a lower level than the end portions thereof and has an open profile, said end portions thereof having a closed profile and recesses to receive wheel bearings, a pair of cross members disposed between the wheel axles and having an open profile, the middle portion of said cross members being disposed on a higher level than the ends thereof, said ends being welded to the end portions of the longitudinal members, said air spring bellows disposed adjacent the ends of the cradle frame, buffers of resilient material disposed between stop surfaces on the cradle frame and stop surfaces on the swivel truck frame to permit an effortless mutual movement in the vertical direction and limit horizontal movements.
Claim 9
Dependent Claim
186 words
A motorized swivel truck for rail vehicles, especially for streetcars, comprising a swivel truck frame, a cradle frame, an air spring bellows disposed between said swivel truck and said cradle frame, an annular ball bearing disposed between said cradle frame and a car body, an electric motor disposed on said swivel truck frame, said swivel truck frame comprising two longitudinal members each of whose middle portion is disposed on a lower level than the end portions thereof and has an open profile, said end portions thereof having a closed profile and recesses to receive wheel bearings, a pair of cross members disposed between the wheel axles and having an open profile, the middle portion of said cross members being disposed on a higher level than the ends thereof, said ends being welded to the end portions of the longitudinal members, said air spring bellows disposed adjacent the ends of the cradle frame, buffers of resilient material disposed between stop surfaces on the cradle frame and stop surfaces on the swivel truck frame to permit an effortless mutual movement in the vertical direction and limit horizontal movements.
Claim 10
Dependent Claim
182 words
Motorized swivel truck for rail vehicles, especially streetcars, comprising a swivel truck frame, a cradle frame, an air spring bellows disposed between said swivel truck frame and said cradle frame, an annular ball bearing between said cradle frame and a car body and an electric motor disposed on said swivel truck frame, said swivel truck frame comprising two longitudinal members whose middle portion is disposed at a level lower than the end portions thereof, which middle portion has an open profile, said end portions thereof having a closed profile and recesses to receive wheel bearings, two cross members which are disposed between the wheel axles, which have an open profile, and whose middle portion is disposed a level above the ends thereof, said ends welded to the end portions of said longitudinal member, said air spring bellows disposed adjacent the ends of said cradle frame, said cradle frame joined to the swivel truck frame by tie rods lying in the direction of travel whose eyes, joined to the cradle frame and to the swivel truck frame, respectively, are provided with resilient inserts.
Claim 11
Dependent Claim
182 words
Motorized swivel truck for rail vehicles, especially streetcars, comprising a swivel truck frame, a cradle frame, an air spring bellows disposed between said swivel truck frame and said cradle frame, an annular ball bearing between said cradle frame and a car body and an electric motor disposed on said swivel truck frame, said swivel truck frame comprising two longitudinal members whose middle portion is disposed at a level lower than the end portions thereof, which middle portion has an open profile, said end portions thereof having a closed profile and recesses to receive wheel bearings, two cross members which are disposed between the wheel axles, which have an open profile, and whose middle portion is disposed a level above the ends thereof, said ends welded to the end portions of said longitudinal member, said air spring bellows disposed adjacent the ends of said cradle frame, said cradle frame joined to the swivel truck frame by tie rods lying in the direction of travel whose eyes, joined to the cradle frame and to the swivel truck frame, respectively, are provided with resilient inserts.
Claim 12
Dependent Claim
163 words
A motorized swivel truck for rail vehicles, especially streetcars, comprising a swivel truck frame, a cradle frame, an air spring bellows disposed between the swivel truck and the cradle frame, an annular ball bearing disposed between said cradle frame and a car body, an electric motor disposed on said swivel truck frame, said swivel truck frame comprising two longitudinal members, each of whose middle portion is disposed at a lower level than the end portion thereof and has an open profile, said end portions having a closed profile and recesses to receive wheel bearings, two cross members disposed between the wheel axles, each of said cross members having an open profile and a middle portion disposed a level above the ends thereof, said ends thereof welded to end portions of said longitudinal members, said air spring bellows disposed adjacent the ends of the cradle frame, said motor suspended from the cross members in the longitudinal direction from the inter-position of resilient fastening members.
Claim 13
Dependent Claim
163 words
A motorized swivel truck for rail vehicles, especially streetcars, comprising a swivel truck frame, a cradle frame, an air spring bellows disposed between the swivel truck and the cradle frame, an annular ball bearing disposed between said cradle frame and a car body, an electric motor disposed on said swivel truck frame, said swivel truck frame comprising two longitudinal members, each of whose middle portion is disposed at a lower level than the end portion thereof and has an open profile, said end portions having a closed profile and recesses to receive wheel bearings, two cross members disposed between the wheel axles, each of said cross members having an open profile and a middle portion disposed a level above the ends thereof, said ends thereof welded to end portions of said longitudinal members, said air spring bellows disposed adjacent the ends of the cradle frame, said motor suspended from the cross members in the longitudinal direction from the inter-position of resilient fastening members.
Claim 14
Dependent Claim
54 words
A motorized swivel truck for rail vehicles according to claim 7, wherein the drive shaft of the motor is connected to the wheel axles through a bevel gear transmission which drives a hollow shaft surrounding the wheel axles and a resilient coupling which transfers the torque from the hollow shaft to the wheel axle.
Claim 15
Dependent Claim
207 words
A motorized swivel truck for rail vehicles, especially streetcars, comprising a swivel truck frame, a cradle frame, an air spring bellows disposed between the said swivel truck frame and said cradle frame, an annular ball bearing disposed between said cradle frame and a car body and an electric motor disposed on said swivel truck frame, said swivel truck frame comprising two longitudinal members, each of whose middle portion is disposed at a level lower than the end portions thereof and has an open profile, said end portions thereof having a closed profile and recesses to receive wheel bearings, two cross members disposed between the wheel axles and having an open profile and whose ends are welded to the end portions of said longitudinal members, said air spring bellows disposed adjacent the ends of said cradle frame and being toroidal in shape, one gripping bead of said air spring bellows being joined to a rim mounted in the center of one of said longitudinal members and another gripping bead joined to a rim fastened to said cradle frame, said motor being suspended from the cross members, the radius of said annular ball bearing being greater than one-quarter of the distance between the centers of the air spring bellows.
Claim 16
Dependent Claim
207 words
A motorized swivel truck for rail vehicles, especially streetcars, comprising a swivel truck frame, a cradle frame, an air spring bellows disposed between the said swivel truck frame and said cradle frame, an annular ball bearing disposed between said cradle frame and a car body and an electric motor disposed on said swivel truck frame, said swivel truck frame comprising two longitudinal members, each of whose middle portion is disposed at a level lower than the end portions thereof and has an open profile, said end portions thereof having a closed profile and recesses to receive wheel bearings, two cross members disposed between the wheel axles and having an open profile and whose ends are welded to the end portions of said longitudinal members, said air spring bellows disposed adjacent the ends of said cradle frame and being toroidal in shape, one gripping bead of said air spring bellows being joined to a rim mounted in the center of one of said longitudinal members and another gripping bead joined to a rim fastened to said cradle frame, said motor being suspended from the cross members, the radius of said annular ball bearing being greater than one-quarter of the distance between the centers of the air spring bellows.
Claim 17
Dependent Claim
192 words
A motorized swivel truck for rail vehicles, especially for streetcars, comprising a swivel truck frame, a cradle frame, air spring bellows disposed between said swivel truck frame and said cradle frame, an annular ball bearing between said cradle frame and a car body and an electric motor disposed on said swivel truck frame, said swivel truck frame comprising two longitudinal members, each of whose middle portion is disposed at a level lower than the end portions thereof and has an open profile, said end portions thereof having a closed profile and recesses to receive the wheel bearings, the axle bearings being mounted with the interposition of rubber bearings with stiff springing in the vertical and horizontal directions, and two cross members disposed between the wheel axles, each of which has an open profile, each of whose middle portion is disposed at a level above the ends thereof, said ends thereof being welded to the end portions of said longitudinal members, said air spring bellows disposed adjacent the ends of said cradle frame, said motor being so suspended from the cross members that its drive shaft lies parallel to the direction of travel.
Claim 18
Dependent Claim
192 words
A motorized swivel truck for rail vehicles, especially for streetcars, comprising a swivel truck frame, a cradle frame, air spring bellows disposed between said swivel truck frame and said cradle frame, an annular ball bearing between said cradle frame and a car body and an electric motor disposed on said swivel truck frame, said swivel truck frame comprising two longitudinal members, each of whose middle portion is disposed at a level lower than the end portions thereof and has an open profile, said end portions thereof having a closed profile and recesses to receive the wheel bearings, the axle bearings being mounted with the interposition of rubber bearings with stiff springing in the vertical and horizontal directions, and two cross members disposed between the wheel axles, each of which has an open profile, each of whose middle portion is disposed at a level above the ends thereof, said ends thereof being welded to the end portions of said longitudinal members, said air spring bellows disposed adjacent the ends of said cradle frame, said motor being so suspended from the cross members that its drive shaft lies parallel to the direction of travel.
Claim 19
Dependent Claim
24 words
A motorized swivel truck for rail vehicles according to claim 1, wherein a magnetic rail brake is suspended directly from said swivel truck frame.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |