With Spring For Low Floor Car Patents (Class 105/158.2)
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Patent number: 11230303Abstract: The present invention relates to a running gear frame for a rail vehicle, in particular, a rail vehicle having a nominal speed above 160 km/h, comprising a running gear frame unit (107) defining a longitudinal axis, a transverse axis and a height axis and comprising two longitudinal beams (108) and at least one transverse beam (110).Type: GrantFiled: May 21, 2019Date of Patent: January 25, 2022Assignee: Bombardier Transportation GmbHInventors: Guido Bieker, Adrian Raczko, Paul Bottcher
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Patent number: 11198454Abstract: A torque box includes a front plate and a bottom surface. The bottom surface is coupled to the front plate such that the bottom surface is orthogonal to front plate and such that front plate extends along the bottom surface. The bottom surface defines a first raised portion configured to fit over a wheel of a railcar.Type: GrantFiled: June 6, 2018Date of Patent: December 14, 2021Assignee: TRINITY RAIL GROUP, LLCInventors: Robert S. Trent, David C. Brabb, Anand Prabhakaran
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Patent number: 8794160Abstract: A low-floor railcar bogie of the present invention includes: a bogie frame including a pair of left and right side beams and a cross beam, each of the left and right side beams including a front portion, an intermediate portion, and a rear portion in a vehicle longitudinal direction, the intermediate portion being located at a position lower than the front portion and the rear portion, the cross beam connecting the intermediate portions of the pair of side beams each other; a pair of front and rear axle beams formed separately from the bogie frame, respectively located on a front side and rear side of the cross beam, and each extending in a vehicle width direction; independent wheels rotatably supported by left and right side portions of the axle beams, respectively; primary suspensions configured to elastically couple the front and rear portions of the side beams and the left and right side portions of the axle beams; and secondary suspensions provided on upper surfaces of the front and rear portions of theType: GrantFiled: May 26, 2010Date of Patent: August 5, 2014Assignee: Kawasaki Jukogyo Kabushiki KaishaInventors: Takehiro Nishimura, Keiichiro Kamura, Junichi Sakamoto
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Patent number: 8776696Abstract: A low floor vehicle can reduce, during curved track traveling of a vehicle, the lateral pressure of the vehicle, can prevent occurrence of vibration and creaking sounds of the vehicle, can improve riding comfort for passengers, and can reduce wear of wheel flanges, is provided. The low floor vehicle includes: a journal member which couples a pair of wheels and is attached to a truck frame; and a truck frame lateral beam arranged along a vehicle width direction closer to the center of the truck frame than the journal member. The journal member can turn with respect to the truck frame. A coupling member which couples the journal member and the truck frame lateral beam is provided. The coupling member is attached to the center in the vehicle width direction of the truck frame lateral beam so as to be pivotable around an axis extending in a vehicle height direction.Type: GrantFiled: June 16, 2009Date of Patent: July 15, 2014Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yoshiki Okubo, Hiroyuki Kono, Kousuke Katahira
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Patent number: 8322289Abstract: A low floor vehicle reduces, when the vehicle enters a curved track, the lateral force of the vehicle, prevents occurrence of vibration and creaking sounds of the vehicle, improves riding quality of passengers, and reduces wear of wheel flanges. A low floor vehicle includes a bogie frame 9 of a bogie 7, a pair of bogie frame cross beams 9a arranged along a vehicle lateral direction in the middle of a vehicle longitudinal direction of the bogie frame 9 and arranged spaced apart from each other in the vehicle longitudinal direction, and a pair of wheels 8 provided in each of a vehicle front edge direction and a vehicle rear edge direction with respect to the pair of bogie frame cross beams 9a of the bogie frame 9 and configured to travel on a track 1.Type: GrantFiled: June 11, 2009Date of Patent: December 4, 2012Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Yoshiki Okubo, Hiroyuki Kono, Kousuke Katahira
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Patent number: 6601520Abstract: A motor bogie for a rail vehicle having an integral low-slung floor, the motor bogie having a frame resting on four wheels via a primary suspension, the frame supporting at least one motor disposed on one side of the frame and connected to at least one wheel via transmission, wherein each wheel has an individual wheel shaft supported by an axle box, and wherein the transmission comprise a gear unit coupled directly to the shaft of the wheel and a telescopic transmission of the type having a double universal joint and disposed between the gear unit and the motor, the gear unit being placed outside the wheel, and having a casing incorporating the axle box of the shaft of the wheel, the casing of the gear unit serving as a support element for supporting a primary suspension member on which the frame bears.Type: GrantFiled: June 20, 2002Date of Patent: August 5, 2003Assignee: AlstomInventors: Christophe Eche, Jean-Christophe Loiseau, Alain Rodet
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Publication number: 20020195018Abstract: A motor bogie for a rail vehicle having an integral low-slung floor, the motor bogie having a frame resting on four wheels via a primary suspension, said frame supporting at least one motor disposed on one side of the frame and connected to at least one wheel via transmission means, wherein each wheel has an individual wheel shaft supported by an axle box, and wherein said transmission means comprise a gear unit coupled directly to the shaft of said wheel and a telescopic transmission of the type having a double universal joint and disposed between the gear unit and the motor, said gear unit being placed outside the wheel, and having a casing incorporating the axle box of the shaft of the wheel, said casing of the gear unit serving as a support element for supporting a primary suspension member on which the frame bears.Type: ApplicationFiled: June 20, 2002Publication date: December 26, 2002Applicant: ALSTOMInventors: Christophe Eche, Jean-Christophe Loiseau, Alain Rodet
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Patent number: 6289821Abstract: The rail vehicle, especially for a streetcar or metropolitan transit car for local traffic, includes a car body (1) and an undercarriage (2) nonrotatably connected with each other by respective guide rods (3) each extending in a longitudinal direction. The connector members (3a) of these guide rods (3) facing the car body (1) and the corresponding receptacles (4) for them attached to the car body are arranged together in the central plane (M) of the undercarriage, which extends perpendicularly to the vehicle longitudinal axis (L). The connector members (3a) and the corresponding receptacles (4) are arranged together in the central plane (M) in a symmetrical arrangement so that a rapid reversal of the running direction of the undercarriage may be performed by only releasing the guide rods from their receptacles, rotating the undercarriage by about 180° and reconnecting the guide rods to the receptacles without moving the undercarriage from the first head end to the second head end of the car body (1).Type: GrantFiled: April 27, 1999Date of Patent: September 18, 2001Assignee: Siemens Duewag Schienenfahrzeuge GmbHInventor: Johannes Amrath
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Patent number: 6253686Abstract: The invention concerns a power puller motor bogie comprising at least a gear motor (6, 10) arranged inside the bogie chassis (4), said gear motor (6, 10) being suspended in said bogie chassis (4) by means of at least two elastic connecting rods (7, 8, 9). Said elastic connecting rods (7, 8, 9) are all supported by said bogie chassis (4). Said elastic connecting rods (7, 8, 9) are such that said suspended gear motor (6, 10) is transversely mobile relative to said vehicle longitudinal direction of movement acts as inertia damper. A shock absorber (12) is fixed between said bogie chassis (4) and said gear motor (6, 10).Type: GrantFiled: November 2, 1999Date of Patent: July 3, 2001Assignee: Alstom Transport SAInventor: Eric Koelsch