Resilient Support Patents (Class 296/190.07)
  • Patent number: 7055637
    Abstract: A hydraulic tilting device for tilting a cab of a vehicle between a driving position and a tilted position, which cab is resiliently supported on the chassis of the vehicle. The tilting device includes a reservoir for hydraulic fluid and a pump which is connected to the reservoir. The tilting device also includes a double-acting hydraulic tilting cylinder for tilting the cab. At the tilting cylinder there is a lost-motion passage which extends between ports which open out into the cylinder space of the tilting cylinder, which ports are respectively in communication with the pressure chamber and the pull chamber of the tilting cylinder if the piston-piston rod assembly is in the lost-motion range defined by the ports. The tilting device is designed in such a manner that the reciprocating movements of the piston-piston rod assembly within the lost-motion range can take place with as little obstacle as possible.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: June 6, 2006
    Assignee: Actuant Corporation
    Inventors: Roeland Mallan, Aswin Leonard Koebrugge
  • Patent number: 7029059
    Abstract: A vibration-damping and oscillation-damping mounting system adjustably supports a vehicle cab on a vehicle chassis. The mounting system includes a plurality of variable-length links in the form of spring-damping elements (shock-absorbing elements) and/or adjusting elements. Preferably, the cab is supported on the vehicle chassis by at least six links, each having a first end coupled to the chassis and a second end coupled to the cab. The links are arranged in closed kinematic chains and with adjacent pairs of links arranged with convergently oriented axes so that active and/or passive shock absorption (spring damping) of the cab in six degrees of freedom is possible.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: April 18, 2006
    Assignee: Deere & Company
    Inventors: Gerd Bernhardt, Ruslan Rudik, Sergiy Fedotov
  • Patent number: 6986545
    Abstract: Method and device for suspending a cab (4) on a vehicle frame (3) using vertical orientation for both a first element (1) that absorbs shocks/vibrations from the vehicle frame (3) to the cab (4) and a second element (2) that acts as a load support between cab (4) and the vehicle frame (3)in the event of, for example, accident situations. The first and second elements (1, 2) are arranged on the device, which connects the cab (4) to the vehicle frame (3) by a firm connection between the first element (1) and the cab (4), or alternatively the vehicle frame (3).
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: January 17, 2006
    Assignee: Volvo Wheel Loaders AB
    Inventors: Ingemar Nilsson, Allan Ericsson, Jonny Lindblom, Leif Norling, Magnus Fornell
  • Patent number: 6948580
    Abstract: A hydraulic tilting device for tilting a cab mounted on the chassis of a vehicle between a driving and a tilted position comprises a reservoir for hydraulic fluid, a pump connected to the reservoir, and a double-acting hydraulic tilting cylinder. A lost-motion conduit is provided between ports opening into a push chamber and a pull chamber in the cylinder space of the tilting cylinder when the piston/piston rod assembly is in a lost-motion range defined by the ports. When under the influence of the movements of the piston/piston rod assembly within the lost-motion range, the pull connection of the tilting cylinder causes suction of hydraulic fluid out of the reservoir, forcing hydraulic fluid from the reservoir into the pull chamber, and moving hydraulic fluid from the pull chamber to the reservoir through the lost-motion conduit. Hydraulic fluid therefore circulates when the cab is carrying out spring movements.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: September 27, 2005
    Assignee: Actuant Corporation
    Inventors: René Hendrikus Plechelmus Scholten, Roeland Mallan
  • Patent number: 6805215
    Abstract: An assembly that includes a mounted component that is suspended from a mounting component by a novel suspension-system in such a manner that relative movement between the mounted component and the mounting component is allowed only in certain directions and only within certain ranges. The novel suspension system comprises a travel-limiting link that is engaged to the mounted component at one connection point and also engaged to the mounting component at another connection point. The travel-limiting link is pivotally engaged to the mounted component at its connection point thereto and/or is pivotally engaged to the mounting component at its connection point thereto. The travel-limiting link comprises a first snubber that cooperates with a first bump-stop structure of the assembly to limit the rotation of the travel-limiting link relative to the mounted component and/or the mounting component.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: October 19, 2004
    Assignee: International Truck Intellectual Property Company, LLC
    Inventor: Benjamin S. Puterbaugh
  • Publication number: 20040201257
    Abstract: Method and device for providing a suspension for a cab (4) on a vehicle frame (3) having a first element (1) adapted mainly for reducing transmission of shocks/vibrations from the vehicle frame (3) to the cab (4). A second element (2) is included that is adapted mainly for taking up load in the event of, for example, accident situations. The first and second elements (1, 2) are arranged serially in the vertical direction of the vehicle. The device includes means (5) for connecting the cab (4) and the vehicle frame (3), and the first and second elements (1, 2) are arranged on the connecting means (5). The connecting means (5) is connected firmly to the first element (1) and also to the cab (4). The connecting means (5) is connected firmly to the first element (1) and also to the cab (4), or alternatively to the vehicle frame (3). The connecting means (5) constitutes a firm connection between the first element (1) and the cab (4), or alternatively the vehicle frame (3).
    Type: Application
    Filed: January 9, 2004
    Publication date: October 14, 2004
    Applicant: VOLVO WHEEL LOADERS AB
    Inventors: Ingemar NILSSON, Allan Ericsson, Jonny Lindblom, Leif Norling, Magnus Fornell
  • Patent number: 6758294
    Abstract: A suspension for a cab of an over the highway truck or tractor. The suspension includes a pair of spaced apart springs and a pair of spaced apart motion dampers interposed between and connected to the cab and a frame of the truck or tractor. A third spring is mounted to one of the frame or the cab. A panhard rod has a first end connected to the third spring. A second end of the panhard rod is connected to one of the frame or cab that does not mount the third spring. The third spring biases the cab to a centered position relative to the frame.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: July 6, 2004
    Assignee: Volvo Trucks North America, Inc.
    Inventors: Jeff Peddycord, Al Wingate
  • Publication number: 20040080181
    Abstract: Two and four point truck cab suspensions comprise combined spring/damping element units at at least the rear corners of the cab, and preferably at all four corners of the cab.
    Type: Application
    Filed: October 24, 2002
    Publication date: April 29, 2004
    Inventors: Benjamin S. Puterbaugh, Anthony D. Sutton
  • Patent number: 6726272
    Abstract: Two and four point truck cab suspensions comprise combined spring/damping element units at at least the rear corners of the cab, and preferably at all four corners of the cab.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: April 27, 2004
    Assignee: International Truck Intellectual Property Company, LLC
    Inventors: Benjamin S. Puterbaugh, Anthony D. Sutton
  • Patent number: 6725957
    Abstract: A truck cab suspension system provides improved lateral location of the cab and restrains the cab from detachment from the vehicle chassis during accidents. The suspension system offers simplification over the prior art by providing a lateral locating wheel set in a vertical travel between the chassis and the vehicle cab. The travel provides a backup link between cab and chassis. The locating wheel is cushioned to provide bumper like protection for lateral, and both up and down vertical shocks.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: April 27, 2004
    Assignee: International Truck Intellectual Property Company, LLC
    Inventor: Anthony D. Sutton
  • Patent number: 6709046
    Abstract: A supporting structure for an operator cab on a body frame of a work machine having a floor frame with a low floor portion and a high floor portion. A vibro-isolating support provided between the low and high floor portions so as to support the operator cab resiliently. At least one of said vibro-isolating supports located at either of the low floor portion having a support axis (M—M) or the high floor portion a having support axis (N—N) inclines longitudinally at a predetermined angle (&thgr;) from a vertical axis toward the center of gravity (G) of the operator cab. Either one of the vibro-isolating supports is located at the low floor portion and the high floor portion having a vertical support axis.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: March 23, 2004
    Assignee: Komatsu Ltd.
    Inventors: Kouji Okazawa, Mitsuhiko Kamado, Noboru Kanayama, Shinji Mitsuta
  • Patent number: 6702367
    Abstract: A driver's cab of a commercial vehicle is supported by at least one support (8; 9) on a frame (1) by spring struts (10; 20) and, by means of a pair of swinging arms (11; 21), is supported on bearings (15; 16;25; 26) fixed on the frame. One end of the swinging arms are connected in an articulated manner to the support.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: March 9, 2004
    Assignee: Magna Steyr Fahrzeugtechnik AG & Co. KG
    Inventors: Martin Leitner, Rudolf Bramberger, Alois Arnberger, Remco Klunder
  • Patent number: 6688413
    Abstract: A bearing system for a first vehicle part, e.g., a driver's cab of a truck, on a second vehicle part, e.g., a vehicle frame, the first vehicle part being movable from a first position relative to the second vehicle part into a second position, includes a shaft about which the first vehicle part is rotatable from the first position relative to the second vehicle part into the second position, a first flexible bearing element disposed in a first shaft section of the shaft and a second flexible bearing element disposed in a second shaft section of the shaft. The first vehicle part is supported on the shaft in the first shaft section via a first supporting element and in the second shaft section via the flexible second bearing element. The shaft is supported in its first shaft section on the second vehicle part via the first flexible bearing element and in its second shaft section via a second supporting element.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: February 10, 2004
    Assignee: Firma Carl Freudenberg
    Inventors: Arno Hamaekers, Arnold Simuttis, Axel Rudolph
  • Patent number: 6619728
    Abstract: A suspension system is for vehicles and its components such as vehicle cabs that at least partially form a load. The components are subject to accelerations in the starting and breaking directions. At least one suspension cylinder can be subject to a load. The fluid chambers of the cylinder are connected to a shock-absorbing device in a fluid conveying manner. The shock-absorbing device counteracts the free movement of the load and throttles the fluid flow linked with it. A sensor device is provided for controlling the shock-absorbing device, and is provided with a control mass that is subject to the accelerations. The sensor device acts upon at least one throttling device in such a way that the fluid flow is increasingly throttled when the acceleration is increasing. The suspension system is improved by the sensor device, next to the user-friendly basic suspension, providing a suspension that is able to guarantee safety even in extreme accelerations and helps to prevent dangerous driving conditions.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: September 16, 2003
    Assignee: Hydac Technology GmbH
    Inventor: Albrecht Kummel
  • Patent number: 6598932
    Abstract: Driver's cab suspension, particularly for a conventional cab vehicle, comprising a vehicle frame which supports a driver's cab by at least three springs. At least two springs are arranged in a front area of the driver's cab and the at least one other spring is arranged in a rear end area of the driver's cab. A stabilizer arranged transverse to the vehicle frame opposes the roll movement of the driver's cab. The stabilizer extends in the rear end area of the driver's cab.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: July 29, 2003
    Assignee: ZF Sachs AG
    Inventors: Alexander Gross, Roy van Wynsberghe
  • Publication number: 20030089541
    Abstract: A truck cab suspension system provides improved lateral location of the cab and restrains the cab from detachment from the vehicle chassis during accidents. The suspension system offers simplification over the prior art by providing a lateral locating wheel set in a vertical travel between the chassis and the vehicle cab. The travel provides a backup link between cab and chassis. The locating wheel is cushioned to provide bumper like protection for lateral, and both up and down vertical shocks.
    Type: Application
    Filed: November 15, 2001
    Publication date: May 15, 2003
    Inventor: Anthony D. Sutton
  • Patent number: 6540038
    Abstract: A truck cab suspension system provides improved durability of the truck cab structure by reducing twisting forces applied to the cab frame from the suspension system. The suspension system provides support to the rear sill of the truck by positioning two air springs on either side of the vehicle center line under the sill and two shock absorbers aligned along the vehicle center line between the air springs. The forces applied to the cab frame rear sill balance one another avoiding twisting.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: April 1, 2003
    Assignee: International Truck Intellectual Property Company, L.L.C.
    Inventors: Michael A. Taylor, Benjamin S. Puterbaugh
  • Patent number: 6540283
    Abstract: The invention related to a process for suspending on a vehicle frame a driving cab which has two-point suspension. Assembly involves the cab being lowered towards the frame by means of a lifting device so that a contact device fitted to the cab is caused to rest on the portions of a supporting device which protrude on either side of a supporting unit mounted on the frame. This means that the cab lies in a stable manner against the frame and that the fastening apertures of the contact device and of the supporting device are placed centrally to one another. The lifting device can therefore be released and the contact device be secured to the fastening device, thereby fixing the contact device relative to the supporting device but leaving the supporting device freely rotatable in the supporting unit.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: April 1, 2003
    Assignee: Scania CV AG (publ)
    Inventors: Daniel Johansson, Olof Ostensson
  • Patent number: 6477934
    Abstract: An apparatus for anti-mine protection for an armored vehicle wherein a box (5) is mounted to the underside of the vehicle floor, with the box being completely filled in the longitudinal and transverse directions with a plurality of sandbag-like damping elements (4).
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: November 12, 2002
    Assignee: Rheinmetall Landsysteme GmbH
    Inventors: Peter Bruhn, Josef Schmitt, Manfred Kühl, Eitel Runow
  • Patent number: 6474430
    Abstract: A mount for mounting a cab on a vehicle frame includes a first and a second mounting part, one of which is provided on the cab and the other of which is provided on the frame. The mount further includes a vibration damper acting between frame and cab. The first mounting part includes an inner anchoring part and an outer anchoring part that is movable with respect to the inner anchoring part, the outer anchoring part radially enclosing the inner anchoring part, an elastic spring element acting between the inner and the outer anchoring parts, the cab being raiseable with respect to the vehicle frame, e.g., in a swiveling manner, from a driving position into a service position, and being lowerable from the service position into the driving position. In response to raising the cab into the service position, the first and the second mounting parts are separated from each other, and, in response to lowering the cab into the driving position, the first and second mounting parts are reconnected.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: November 5, 2002
    Assignee: Firma Carl Freudenberg
    Inventors: Arno Hamaekers, Arnold Simuttis, Axel Rudolph
  • Patent number: 6454034
    Abstract: An industrial truck, in particular a fork lift truck, is provided having a one-piece or multiple-piece vehicle frame, a driver's cab and one or more oscillation-generating components. The driver's cab has a rigid connection to the vehicle frame, with at least one elastic damping element located between at least one oscillation-generating component and a part of the vehicle frame connected with the driver's cab. At least one oscillation-generating component can be fastened directly or indirectly to the rear weight.
    Type: Grant
    Filed: October 20, 1999
    Date of Patent: September 24, 2002
    Assignee: Linde Aktiengesellschaft
    Inventor: Bernhard Gotz
  • Patent number: 6439651
    Abstract: A vehicle cab is resiliently suspended on a vehicle frame. Between the cab and the frame is arranged a device for limiting the mobility of the cab relative to the frame during operation and upon tilting of the cab. The device incorporates two stop surfaces fastened to the cab, and a movement limiter fastened to a stabilizer which is fastened to the frame. The movement limiter extends between the stop surfaces so that it shifts between them upon movement of the link arms. The cab's mobility is limited by the fact that contact occurs between the movement limiter and the stop surfaces.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: August 27, 2002
    Assignee: Scania CV AB (publ)
    Inventors: Daniel Johansson, Olof Ostensson
  • Publication number: 20020113463
    Abstract: Driver's cab suspension, particularly for a conventional cab vehicle, comprising a vehicle frame which supports a driver's cab by at least three springs. At least two springs are arranged in a front area of the driver's cab and the at least one other spring is arranged in a rear end area of the driver's cab. A stabilizer arranged transverse to the vehicle frame opposes the roll movement of the driver's cab. The stabilizer extends in the rear end area of the driver's cab.
    Type: Application
    Filed: February 15, 2002
    Publication date: August 22, 2002
    Applicant: ZF Sachs AG
    Inventors: Alexander Gross, Roy van Wynsberghe
  • Patent number: 6408970
    Abstract: The invention is a mechanical suspension system for cab-over tractors, specifically those used in terminal transport having two front cushion dual suspension components on the front pivot area of the cab to tractor frame connection and a single rear cushion dual suspension component on the rear of the tractor frame at the cab-over latch area, the three point dual suspension system providing a more stable suspension package than the four point and other single suspension systems.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: June 25, 2002
    Inventor: Allen L. Eng
  • Patent number: 6340201
    Abstract: A construction machine adapted to suppress transmission of vibrations from a main frame to a cab. The cab is supported on a bed frame by anti-vibrational mounts, each provided with a laminated rubber body having relatively high rigidity against vibrations in vertical directions and relatively small rigidity against vibrations in horizontal directions. A floor panel of the cab is connected to the bed frame by horizontally mounted oil dampers constituting vibration attenuators. Consequently, when the bed frame is vibrated, the cab undergoes horizontal parallel movements due to flexure of the laminated rubber bodies, thereby preventing occurrences of pitching, rolling and yawing vibrations. Even if residual vibrations occur on the cab due to the resilient restoring force of the laminated rubber bodies, such residual vibrations can be attenuated by the oil dampers, thereby preventing the phenomenon of resonance which might otherwise result from the residual vibrations and to improve the amenity within the cab.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: January 22, 2002
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventor: Takeshi Higuchi
  • Patent number: 6328375
    Abstract: A cab mounting rubber wherein a stopper is inhibited from being seceded to eliminate such problems as decreased cap durability, shortened life and tilted cab, and rubber comprising: a stopper mounted at the boss; and a flange mounted at a space formed at one side of the stopper in order to prevent detachment of the stopper.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: December 11, 2001
    Assignee: Hyundai Motor Company
    Inventor: Jin-Sung Yoo
  • Publication number: 20010006299
    Abstract: A cab mounting rubber wherein a stopper is inhibited from being seceded to eliminate such problems as decreased cap durability, shortened life and tilted cab, and rubber comprising: a stopper mounted at the boss; and a flange mounted at a space formed at one side of the stopper in order to prevent detachment of the stopper.
    Type: Application
    Filed: December 29, 2000
    Publication date: July 5, 2001
    Inventor: Jin-Sung Yoo
  • Patent number: 6206121
    Abstract: A vehicle comprising a frame and a cab or the like supported by the frame by a resilient suspension, the resilient suspension is essentially constituted by a main U-shaped torque rod interposed in slanting or horizontal position between the frame and the cab, a main actuator being associated to the said main torque rod to determine its neutral position.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: March 27, 2001
    Assignee: Etablissements Michel
    Inventor: Luc Michel
  • Patent number: 6168229
    Abstract: A cab suspension for a vehicle having a chassis supporting a cab with the cab being supported on the chassis at a forward location and at a rearward location so as to permit vertical movement of the rearward end of the cab relative to the chassis. Conventional forward support structures connect the forward end of the cab to the chassis. A rearward support structure or suspension unit connects the cab to the chassis at the rearward end of the cab to provide relative vertical movement therebetween. The structure comprises an elongated metal tube having its longitudinal axis disposed transversely with respect to the longitudinal axis of the chassis with the tube being secured to the chassis. The tube has an elongated, resilient rubber or elastomeric cartridge positioned therein which has an elongated torsion bar extending therethrough which is in engagement therewith so that the cartridge restricts rotational movement of the torsion bar with respect to the tube.
    Type: Grant
    Filed: August 6, 1999
    Date of Patent: January 2, 2001
    Assignee: Link Mfg., Ltd.
    Inventors: David S. Vander Kooi, Richard R. Schwanke