Bevel Gears Patents (Class 74/378)
  • Patent number: 11345308
    Abstract: The present invention relates to an ejector clutch (1) for a belt tensioner, comprising a first shaft (10), a second shaft (20), and a coupling part (30), wherein the coupling part (30) is arranged between the first shaft (10) and the second shaft (20) in a longitudinal axis (X) defining an axial direction, wherein the coupling part (30) has at least one clutch finger (40), which engages in a first recess (15) of the first shaft (10) for transmitting a torque (M) and, when a torque (M2) to be transmitted is exceeded, said clutch finger is displaced, against a spring force in the axial direction, from the first recess (15) of the first shaft (10) into a second recess (25) of the second shaft (20). The invention further relates to a belt tensioner with an ejector clutch (1).
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: May 31, 2022
    Assignees: IMS GEAR SE & CO. KGAA, AUTOLIV DEVELOPMENT AS
    Inventors: Sebastian Breithaupt, Eric Dreher, Andreas Lucht
  • Patent number: 9174715
    Abstract: An apparatus is for a changing gear in a marine propulsion system. A cam rotates about a first axis with a shift shaft. The cam has a body and an arm that radially extends from the body with respect to the first axis. A cam follower moves parallel to a second axis that is perpendicular to the first axis to cause movement of a clutch, thereby enacting a gear change. The cam follower defines a pocket that is elongated with respect to the second axis and a recess that extends from the pocket along a third axis that is perpendicular to the first and second axes. The cam is disposed in the pocket and the arm extends into the recess. During a constant rotation of the shift shaft in a first direction about the first axis, the cam follower moves with respect to the second axis to enact the gear change and also dwells with respect to the second axis.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: November 3, 2015
    Assignee: Brunswick Corporation
    Inventors: Theodore J. Hanes, David T. Syson
  • Patent number: 7021168
    Abstract: A selector transmission with countershaft design is described which comprises one input shaft (2), one output shaft (3), one main shaft (4) situated therebetween and one countershaft (5) interacting with the main shaft (4), shiftable gear wheel pairs being located upon the main shaft (4) and the countershaft (5). The main shaft (4) and the countershaft (5) are disposed at an angle (?) to each other.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: April 4, 2006
    Assignee: ZF Friedrichshafen AG
    Inventors: Rolf B├╝rkle, Hermann Lanz, Martin Lamke
  • Patent number: 6694835
    Abstract: The power transmission mechanism has a first gear secured to an input shaft. A second gear connectable to the input shaft through a clutch mechanism is provided around the input shaft through a one-way clutch that allows the input shaft to rotate freely in the direction of rotation of the driving force from the engine when the clutch mechanism is in a disengaged state but does not permit rotation of the second gear relative to the input shaft in an opposite direction. A brake mechanism is provided to restrain the rotation of the second gear. A third gear is in mesh with the first gear. A fourth gear is in mesh with the second gear. The power transmission mechanism further has first to third bevel gears. The gear ratio between the first and third gears is equal to that between the second and fourth gears.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: February 24, 2004
    Assignee: Tamiya, Inc.
    Inventor: Kazuhiko Kawahara
  • Patent number: 6517395
    Abstract: A marine propulsion unit drive train including two oppositely facing driven bevel gears having a common rotational axis and different numbers of teeth engaged with a bevel pinion drive gear having a single diametral pitch. Both driven gears have the same pitch diameter but different diametral pitches so that the driven gears rotate at different rates to boost performance when the propulsion unit is operated. The drive train is applicable to single propeller marine propulsion units and dual propeller stem drive units, and a method for fabricating a reduced-tooth driven gear to mesh with a drive pinion of a different diametral pitch is disclosed.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: February 11, 2003
    Assignee: Bombardier Motor Corporation of America
    Inventors: Jeffrey P. Higby, Laverne W. Tatge
  • Patent number: 6401560
    Abstract: A shift mechanism of an outboard engine has a shift cam which is remotely-operable to effect change-over of the direction of rotation of a propeller shaft in a gear case. A shift cam support member is a member separate from and detachably secured to the gear case. The shift mechanism permits use of a single design of the gear case adapted to either a rotary shift cam or a vertically-movable shift cam.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: June 11, 2002
    Assignee: Suzuki Motor Corporation
    Inventor: Takuya Sato
  • Patent number: 6386350
    Abstract: A clutch mechanism of an outboard engine provides improved feel of shifting operation while allowing a detent mechanism and a stopper to fully perform their functions. The clutch mechanism has a shift cam which is remotely operable through a clutch rod and a shift rod, so as to switch the direction of rotation of a propeller shaft within a gear case. The clutch mechanism has an assist device acting between the clutch rod and the shift rod. The assist device has a rotary drive member connected to the clutch rod, a rotary driven member connected to the shift rod and driven by the drive member, and an elastic member disposed to act between the drive member and the driven member.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: May 14, 2002
    Assignee: Suzuki Motor Corporation
    Inventor: Takuya Sato
  • Patent number: 6368170
    Abstract: A marine propulsion system (10) including a vertical drive unit (12) adapted to have a common upper gear case housing (26) for use with either one of a cone clutch shifting apparatus (60) or a clutch dog shifting apparatus (120). The upper gear case housing is designed to have bearing support surfaces (38) common to both applications and to have a bottom mating surface (27) adapted for attachment to a lower gear case (16) including either a clutch dog shifting apparatus (120) or a non-shifting power transfer apparatus (140). A shift linkage (110) is designed to have a first set of parts (80,82) adapted for connection to the cone clutch shifting apparatus (90) and having a second set of parts (102,104,106) adapted for connection to the clutch dog shifting apparatus (120) and having a third common set of parts (44,48,50) necessary for connection to either the cone clutch shifting apparatus or the clutch dog shifting apparatus.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: April 9, 2002
    Assignee: Bombardier Motor Corporation of America
    Inventors: Mark Whiteside, Gerald F. Bland
  • Patent number: 6129599
    Abstract: An electrically controlled transmission system for a marine vessel that is adapted to avoid vibration to the vessel during a shifting process of the transmission system. The transmission system includes a marine vessel having an inboard motor and an outboard propulsion drive. The motor is coupled to the propulsion drive by the transmission assembly which is at least partially located within a portion of the outboard propulsion drive and is adapted to provide substantially vibration-free shifting of the transmission assembly. The transmission assembly has a drive shaft selectively engageable with at least a forward and reverse gear of the propulsion drive for establishing forward and reverse configurations of the transmission assembly, respectively. The transmission assembly is also electrically and remotely controlled from a distance therefrom between the forward and reverse configurations utilizing electrically actuatable solenoids.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: October 10, 2000
    Inventors: Oddbjorn Hallenstvedt, Staffan M.ang.nsson
  • Patent number: 6062360
    Abstract: A synchronized gear shift mechanism is provided for a marine propulsion system. Using a hub and a sleeve that are axially movable relative to an output shaft but rotationally fixed to the shaft and to each other, the gear shift mechanism uses associated friction surfaces to bring the output shaft up to a speed that is synchronism with the selected forward or reverse gear prior to mating associated gear tooth surfaces together to transmit torque from an input shaft to an output shaft. The friction surfaces on the forward and reverse gears can be replaceable to facilitate repair after the friction surfaces experience wear.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: May 16, 2000
    Assignee: Brunswick Corporation
    Inventor: Waylon D. Shields
  • Patent number: 5829564
    Abstract: A marine drive shift mechanism includes a shift ring (200) having a chamfer zone (204) along an arcuate portion of its outer circumference facilitating ease of shifting. A stepped camming surface (222) provides step function shifting movement. Neutral positioning notches (238, 240) are provided on the clutch sleeve (18) to improve clutch sleeve (18) placement when the shift mechanism is in neutral.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: November 3, 1998
    Assignee: Brunswick Corporation
    Inventors: Gary L. Meisenburg, Phillip D. Magee
  • Patent number: 5732595
    Abstract: A slidable transmission shaft for a manual transmission includes a plurality of closely-spaced splines at a second end, a first plurality of keys at a first end, which are slidably engagable to an impeller fastened to the crankshaft of a motor vehicle for high gear, and a second plurality of keys spaced from the first plurality of keys and which are slidably engagable to a clutch for low gear. This slidable transmission shaft can also achieve reverse by sliding into a position where neither of the plurality of keys are engaged.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: March 31, 1998
    Inventor: Ernie Brookins
  • Patent number: 5709130
    Abstract: A reversing transmission for marine propulsion units or the like. The reversing transmission includes a multiple disc clutch assembly that is cooperative with a pair of bevel gear and clutch assemblies. These bevel gear and clutch assemblies are made up of a two-part construction each comprised of a bevel gear and a tubular sleeve that is affixed to the bevel gear and which carries a series of clutch plates. A clutch actuating piston is also incorporated that has a tapered end face so as to improve and make smoother the clutch engagement.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: January 20, 1998
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventor: Takayoshi Suzuki
  • Patent number: 5513546
    Abstract: A device for fastening and loosening threaded members which has a socket mechanism at its forward end for engaging the threaded member and in which the torque of a motor rotatable in one direction is transmitted to the socket mechanism via a rotation transmission route including a planetary gear mechanism, forward-reverse rotation changing assembly and bevel gear mechanism. The bevel gear mechanism comprises a drive bevel gear coupled to the motor, and a pair of driven bevel gears opposed to each other in orthogonal relation to the axis of the drive gear and aligned with the axis of the planetary gear mechanism, the driven bevel gears being in mesh with the drive gear. The rotation changing assembly comprises an output shaft rotatably extending through the driven gears, and engaging means for selectively engaging one of the driven gears with the output shaft for the engaged gear to rotate with the shaft or disengaging the gear from the shaft. The output shaft is coupled to the planetary gear mechanism.
    Type: Grant
    Filed: September 15, 1994
    Date of Patent: May 7, 1996
    Assignee: Maeda Metal Industries, Ltd.
    Inventors: Seiji Ikeda, Shinji Fukuhara
  • Patent number: 5509323
    Abstract: A reverse gear for boats, comprising a bevel gear transmission with two gears (4,5) rotatably mounted on a secondary shaft (8) and alternately engageable with the shaft by means of an engaging sleeve (11). The engaging sleeve is made of bronze and has outer engaging cones (12,13), which are coated with a surface layer of molybdenum. The rotatably mounted gears (4,5) have inner engaging cones (14,15) of case hardened steel. The molybdenum layer need be only about 0.1 mm thick and, contrary to molybdenum coatings on steel inner engaging cones of the prior art, need not be worked after deposition.
    Type: Grant
    Filed: April 20, 1994
    Date of Patent: April 23, 1996
    Assignee: AB Volvo Penta
    Inventors: Oddbjorn Hallenstvedt, Kaj Skogman, Bo Kristiansson
  • Patent number: 5509863
    Abstract: Transmission for boats, comprising an input shaft (2), a reversing mechanism and an output shaft (3). The reversing mechanism is comprised by a right angled bevel gearing with two bevel gears (7, 8), which are freely rotatably mounted on an intermediate shaft (4) and engaged with a bevel gear (6) on the input shaft. The bevel gears (7, 8) each cooperate with an individual clutch (13, 14) respectively, by which one of the bevel gears can be locked to the intermediate shaft. The clutches (13, 14) are placed outside the bevel gearing, i.e. on the sides of the bevel gears (7, 8) facing away from each other in order to place the bevel gears (7, 8) close to each other. The clutches are wet clutches compressible by a piston (19) that moves in a cylinder (20) which in turn communicates with a hydraulic pump (22) driven by one of the input and intermediate shafts (2, 4). The output shaft (3) is driven by a bevel gear (12) having a recess in which one (14) of the clutches is partially received.
    Type: Grant
    Filed: March 8, 1994
    Date of Patent: April 23, 1996
    Assignee: AB Volvo Penta
    Inventors: Staffan M.ang.nsson, Benny Hedlund
  • Patent number: 5486125
    Abstract: A drive transmission system for a vessel propelling equipment 1 provided with a clutch operating device that can easily be installed comprises a shift slider 40 axially slidable within a propeller shaft 9 to move a clutch gear 30 through a clutch shifter pin 38 inserted through the propeller shaft; and an operating member capable of operating the shifts slider from above a gear case 5; the operating member includes: a shift fork 50 engaged with 9 fork engaging portion 35c of the shift slider, to move the shift slider; a guide member 59 supporting the shift fork movable in a specific direction; a rotary rod member 55 engaged with a rod engaging section 50b of the shift fork to move the shift fork; and a support member 51 drivably supporting the rod member and fixedly supporting the guide member, thereby sub-assembling the rod member and the guide member to transmit the operation of the rod member to the shift fork; the shift fork is so assembled to be engaged with the fork engaging section of the shift slider
    Type: Grant
    Filed: May 23, 1994
    Date of Patent: January 23, 1996
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Chiharu Soda, Yasushi Fujita, Yoshihiko Fukuda, Kaoru Ichihashi
  • Patent number: 5445546
    Abstract: A shift assistor for a shifting mechanism of a watercraft outboard drive provides a simply structured and compact device which establishes engagement of the transmission under a resilient force and disengagement under a positive force. The shift assistor includes a shift plunger which is coupled to a shift operator and an actuator casing which is coupled to the transmission. A detent coupling is directly operable between the plunger and the casing to couple the plunger to the casing when the transmission is engaged either in the forward or reverse drive directions, and to release the plunger from the casing when the transmission is disengaged.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: August 29, 1995
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventor: Daisuke Nakamura
  • Patent number: 5394764
    Abstract: A bevel gear forward/reverse mechanism comprises bevel gears, a locking device for forward drive and a band brake for reverse drive. The locking device includes tapered pins mounted to a flanged hub which is slidably mounted on an input shaft of a differential unit and locks the input shaft to the differential unit for forward drive. The differential unit is unlocked when the band brake stops the differential unit from rotating for reverse drive. This mechanism also provides a neutral and a drive shaft brake.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: March 7, 1995
    Inventor: Anthony W. Fini, Jr.
  • Patent number: 5327793
    Abstract: A bevel gear transmission for a marine outboard drive having hydraulically actuated clutches for selectively coupling oppositely rotating bevel gears to a shaft to affect either forward or reverse drive. The bevel gears are each supported on the shaft by thrust bearings and are on the outer sides of the bevel gears and are urged into engagement with the thrust bearings by coil compression springs that also act to release the respective clutches. As a result of this arrangement, a constant lash is maintained between the bevel gears regardless of whether they are transmitting a driving thrust or not.
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: July 12, 1994
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Kenichi Hayasaka
  • Patent number: 5151059
    Abstract: A marine propulsion device comprising a lower unit including a gearcase, a propeller shaft mounted in the gearcase for rotation about a generally horizontal fore and aft axis and having an axially extending forwardly opening bore, a shift shaft including a rearward portion located in the bore, a forward portion, and structure for connecting the forward portion to the rearward portion to effect common axial movement of the forward and rearward portions in both directions along the fore and aft axis, a shift lever supported by the lower unit for rotary movement about a horizontal axis transverse to the fore and aft axis, being adapted to be connected to a vertically shiftable link to thereby rock the lever about the transverse horizontal axis, and including a leg, and structure for connecting the leg to the forward portion of the shift shaft to effect movement of the forward portion of the shift shaft in both directions along the fore and aft axis in response to rotary shift lever movement, one of the structure
    Type: Grant
    Filed: June 4, 1991
    Date of Patent: September 29, 1992
    Assignee: Outboard Marine Corporation
    Inventor: Jeffrey P. Higby
  • Patent number: 5110312
    Abstract: Disclosed herein is a marine propulsion device including a propulsion unit comprising a gearcase including therein a cavity, a propeller shaft extending in the cavity and including a portion having an outer surface with an axially extending flat, and a forwardly open axial bore, a bevel gear rotatably supported in the gearcase for rotation relative to the propeller shaft and including a central bore receiving the portion of the propeller shaft in spaced relation thereto, a drive pinion supported for rotation by the propulsion unit and drivingly engaging the bevel gear, a shift shaft located in the axial bore in the propeller shaft for axial movement relative to the propeller shaft and between a drive position and a neutral position, a roller retained between the flat and the bevel gear and movable between a driving position in driving engagement between the bevel gear and the propeller shaft and a non-driving position free of driving engagement between the bevel gear and the propeller shaft, and a pair of mem
    Type: Grant
    Filed: May 14, 1990
    Date of Patent: May 5, 1992
    Assignee: Outboard Marine Corporation
    Inventor: Jeffrey P. Higby
  • Patent number: 5096343
    Abstract: An internal thread forming apparatus includes a housing body fixed on a machine tool, a driving spindle connected to the rotatable main shaft of the machine tool and rotatable at the same speed as that of the main shaft, a movable body movable vertically within the housing body, a rotary lever actuatable to move the movable body downward, and a first return spring biasing the rotary lever to return to a static position. A positive-revolution driving body and a reverse-revolution driving body are carried on and are movable synchronously with the movable body, and rotate in opposite directions. A speed reduction gearing interconnects the driving spindle and the face gears so as to rotate the face gears at a speed less than that of the driving spindle. An output spindle is mounted slidably within the movable body. A tap is fastened to the output spindle. A driving block is carried on the output spindle.
    Type: Grant
    Filed: June 13, 1991
    Date of Patent: March 17, 1992
    Inventor: Ching-Muh Luu
  • Patent number: 5059144
    Abstract: A shift arrangement for a marine outboard drive that permits a forward positioning of the drive shaft without interfering with the operation of the shifting mechanism.
    Type: Grant
    Filed: December 6, 1990
    Date of Patent: October 22, 1991
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventor: Akihiro Onoue
  • Patent number: 5051102
    Abstract: A shift mechanism for a marine propulsion unit that is operative to permit shifting of the transmission into opposite directions in response to a given direction of shift input through reversal of the components. The components are constructed so that they may be reversed to achieve the reversal and operation without necessitating the use of different components.
    Type: Grant
    Filed: August 30, 1990
    Date of Patent: September 24, 1991
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventor: Akihiro Onoue
  • Patent number: 5035664
    Abstract: A marine propulsion device comprising a housing adapted to be mounted on the transom of a boat, a first gear rotatably supported by the housing and adapted to be drivingly connected to a propeller, a pump, and a second gear which is driven by the first gear and which is drivingly connected solely to the pump.
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: July 30, 1991
    Assignee: Outboard Marine Corporation
    Inventors: Gerald F. Bland, Martin J. Mondek, Lawrence E. Zdanowicz
  • Patent number: 5006085
    Abstract: A marine propulsion device comprising a gear housing adapted to be mounted on the transom of a boat, a clutch assembly including a clutch housing, a shaft rotatably supported within the clutch housing and adapted to be drivingly connected to a propeller, opposed bevel gears coaxially supported within the clutch housing for rotation relative to the shaft, and a clutch mechanism located between the bevel gears for causing selective and alternative driving engagement of the bevel gears and the shaft, and a mechanism for affording insertion of the clutch assembly as a unit into the gear housing and for affording removal of the clutch assembly as a unit from the gear housing.
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: April 9, 1991
    Assignee: Outboard Marine Corporation
    Inventors: Gerald F. Bland, Martin J. Mondek, Lawrence E. Zdanowicz
  • Patent number: 4909767
    Abstract: A marine outboard drive that is particularly adapted for use in twin stern drive arrangements and which facilitates selective reversal of the degree of rotation of the output shaft. This is accomplished by means of a bevel gear train including a bevel gear that is selectively positionable upon the input shaft so as to drive the drive shaft in either of two selective directions of rotation. The bearing and dog clutching arrangement of the system is such that loads can be taken regardless of the direction of rotation.
    Type: Grant
    Filed: October 3, 1988
    Date of Patent: March 20, 1990
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventor: Kenichi Hayasaka
  • Patent number: 4907466
    Abstract: A multi-speed transmission with a shift mechanism which selectively couples at least a forward and a reverse gear operatively positioned on a shaft. The shift mechanism is disposed entirely within the transmission housing and includes a shift key arranged for sliding movement of the key in the shaft. An improved neutral collar is positioned on the shaft between the forward and the reverse gears. The neutral collar has its widest cross section centrally located thereto. From this widest central cross section, the neutral collar profile tapers along the inside surface thereof to relatively narrow cross section at each end thereof.
    Type: Grant
    Filed: August 25, 1988
    Date of Patent: March 13, 1990
    Assignee: Deere & Company
    Inventor: John B. Kuhn
  • Patent number: 4905543
    Abstract: A device for turning a monitor to a position at which a viewer can comfortably see the monitor. The device comprises a turntable carrying a monitor thereon, a cam shaft adapted to rotate the turntable in a desired direction utilizing a cylindrical cam having at an outer surface thereof an arc-shaped cam groove. The cam shaft receives a drive force from a drive motor via a reduction gear mechanism.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: March 6, 1990
    Assignee: Goldstar Co., Ltd.
    Inventor: Soo I. Choi
  • Patent number: 4861295
    Abstract: A marine propulsion device comprising a lower unit including a propeller shaft mounted for rotation about an axis, a propeller mounted on the propeller shaft, a drive gear, and a transmission including an actuator movable along the propeller shaft axis for selectively effecting driving engagement between the drive gear and the propeller shaft, an engine drivingly connected to the drive gear, a shift member movable along an axis transverse to the propeller shaft axis, and a mechanism selectively connectable, in alternative first and second conditions, between the shift member and the actuator for moving the actuator in opposite first and second directions along the propeller shaft axis in response to movement of the shift member in opposite directions, the mechanism moving the actuator in the first direction when connected in the first condition and when the shift member is moved in one direction, and the mechanism moving the actuator in the second direction when connected in the second condition and when the
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: August 29, 1989
    Assignee: Outboard Marine Corporation
    Inventors: Kennedy K. McElroy, Jr., Jeffrey P. Higby, Philip A. Zorc
  • Patent number: 4838105
    Abstract: A reversing gear assembly (13) for use in yachts having an angle drive system comprises a horizontal input shaft (15), to be connected to a horizontally mounted engine (11), and an inclined output shaft (16) to be connected to the propeller shaft (12). Gear casing (14) includes an intermediate shaft (17) which extends parallel with the output shaft (16). The forward direction drive path includes meshing cylindrical gear (18) and conical gear (20) on the input and output shafts (15, 16). The reverse direction drive path has on the input and output shafts (15, 16) two cylindrical gears (19, 21) with which a skew cylindrical gear (22) on the intermediate shaft (17) meshes at respective axial halves of the skew gear. The center of engagement between the meshing gears (19, 22) on the input and intermediate shafts (15, 17) is located on the sole, common perpendicular line of these shafts. A reversing clutch (23) is disposed on the output shaft (16).
    Type: Grant
    Filed: June 19, 1987
    Date of Patent: June 13, 1989
    Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.
    Inventors: Kazuhiko Yano, Kazuhiko Ohtsuki, Gen Yoshii
  • Patent number: 4748864
    Abstract: A reversing gear assembly (13) for a marine angle drive comprises a horizontal input shaft (15), to be connected to a horizontally mounted engine (11) and an inclined output shaft (16) to be connected to the propeller shaft (12). Gear casing (14) includes an intermediate shaft (17) which extends parallel with the output shaft (16). The input shaft (16) fixedly mounts a cylindrical gear (22) which meshes with a forward drive conical gear (23) on the output shaft (16) and with a reverse drive cylindrical gear (25) on the intermediate shaft (17). Center of engagement between the cylindrical gears (22, 25) is located on the sole common perpendicular line of the input and intermediate shafts (15, 17). Reverse drive gear train further includes two meshing cylindrical gears (26, 24) on the intermediate and output shafts (17, 16). The gears (23, 24) on the output shaft (16) are selectively coupled to this shaft by clutch means (32).
    Type: Grant
    Filed: June 11, 1987
    Date of Patent: June 7, 1988
    Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.
    Inventors: Kazuhiko Ohtsuki, Gen Yoshii, Toshiaki Okanishi
  • Patent number: 4741192
    Abstract: In an apparatus for rolling metal ribbon stock into convoluted fin strip for use in heat exchangers, an uncoiler apparatus comprising a base, a pair of coil supports for supporting a pair of coils of sheet metal ribbon stock. The coil supports are mounted on a plate which is rotatable about a vertical axis so that when the plate is rotated, one coil support is moved into driving engagement with the motor and the other coil support is moved out of driving engagement with the motor. A control system interconnects the drive of the motor on the uncoiler apparatus with the drive of the remainder of the corrugated fin rolling machine for positively driving the uncoiler as a function of machine speed.
    Type: Grant
    Filed: July 14, 1986
    Date of Patent: May 3, 1988
    Inventor: Bernard J. Wallis
  • Patent number: 4735104
    Abstract: An input shaft is keyed to a first bevel gear, in constant mesh engagement with a second bevel gear keyed to a countershaft and rigidly associated with a first clutch, for causing a first pinion to become rotatively engaged with or disengaged from the input shaft. The second bevel gear is rigidly associated with a second clutch for causing a second pinion to become rotatively engaged with or disengaged from the countershaft. The first and the second pinions are in constant mesh engagement with an output bevel gear keyed to an output shaft, so that by selectively engaging one of the clutches and disengaging another of the clutches, the input and output shafts can be selectively caused to rotate counter-directionally or co-directionally. The axes of the shafts converge towards a common point to simplify the gear arrangements.
    Type: Grant
    Filed: May 28, 1986
    Date of Patent: April 5, 1988
    Assignee: M.P.M. Meccanica Padana Monteverde S.p.A.
    Inventors: Adriano Giurati, Vincenzo De Stefani
  • Patent number: 4735105
    Abstract: An improved driving arrangement for a four wheel off the road vehicle having a combined engine and transmission with the engine output shaft and transmission primary and secondary shafts extending transversely relative to the longitudinal axis of the vehicle. An auxiliary transmission having a pair of driven bevel gears rotating in opposite directions is affixed to the side of the main transmission and embodies a dog clutching arrangement for selectively clutching either of the bevel gears to a drive shaft that drives the rear axle of the vehicle. An interlock arrangement is incorporated so as to prevent shifting of the change speed transmission out of neutral or first gear when the auxiliary transmission is in reverse and for preventing shifting of the auxiliary transmission into reverse except when the change speed transmission is in neutral or low gear. In addition, an overload release device is incorporated in the driving arrangement for protecting the transmission from undue loads.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: April 5, 1988
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Toshiharu Kumazawa
  • Patent number: 4683773
    Abstract: A new type of robotic device is disclosed, using several cable trussed compression members in concert. The cable trussed compression members are deformed along the length of their central compression mast, by the lengthening and shortening in concert of all of the cables of each cable trussed compression member, through the use of motors. Weights traveling on tracks, or fluid filled hoses, are used in addition to the deformation of the cable trussed compression members, to change the location of the center of gravity of the entire assembly, thereby enhancing the balancing and stability of the robotic device. Additional known mechanical and electrical devices may be used in conjunction with the several cable trussed compression members.
    Type: Grant
    Filed: June 27, 1985
    Date of Patent: August 4, 1987
    Inventor: Gary Diamond
  • Patent number: 4679682
    Abstract: A marine drive (10) is provided with a shift mechanism (200) including a detent canister assembly (202). A cylindrical canister (204) contains a ball (206) biased by a pair of concentric springs (208 and 210) into engagement with a shifter lever arm (124) to center the latter in a neutral position. The canister assembly (202) is a self-contained modular unit inserted into the marine drive housing (23). The cylindrical canister (204) has a left end wall (214) with an aperture (216) therethrough and has an open right end containing the ball (206). The first spring bears (208) at its right end against the ball (206) and extends axially leftwardly through the aperture (216) in the left end wall (214) of the canister (204) and bears at its left end against the housing (23). The second outer concentric spring (210) bears at its right end against the ball (206) and is entirely within the canister ( 204) and bears at its left end against the left end wall (214) of the canister (204).
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: July 14, 1987
    Assignee: Brunswick Corporation
    Inventors: Charles F. Gray, Jr., Gary L. Meisenburg, Alvin Zemlicka
  • Patent number: 4653338
    Abstract: The preferred embodiment can be incorporated into a powered instrument which rotates a tool. The preferred embodiment permits changing the direction of rotation of the tool without using the hand that does not grip the instrument housing to operate the tool, and without altering the grip on the instrument. The preferred embodiment includes an actuator which moves between two positions to selectively couple two rotating members to an output shaft. The output shaft is rotated in one direction when one rotating member is coupled to the shaft and is rotated in the remaining direction when the remaining rotating member is coupled to the shaft. Movement of the actuator between its two operative positions can be achieved by pushing on the instrument housing to push the tool against the workpiece, or by pulling the instrument housing away from the chuck if the tool is embedded within the workpiece.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: March 31, 1987
    Assignee: Hall Surgical Division of Zimmer, Inc.
    Inventor: Hugh D. Yeomans
  • Patent number: 4637802
    Abstract: A twin outboard drive and more particularly to an improved transmission and shifting arrangement for such drives. The drives include forward, neutral and reverse transmissions of the bevel gear type and which provide counter-rotation of the respective associated propellers. One of the transmissions is shifted in one direction to shift from neutral to forward while the other transmission is shifted in the opposite direction to shift from neutral to forward. A pair of remote control shift levers are provided and a motion transmitting means connects the shift levers with the transmissions so that the transmissions are shifted in opposite directions when the shift levers are moved in the same direction. In some embodiments, this is accomplished by a crank and follower mechanism and in other embodiments, it is accomplished by a cam and follower arrangement.
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: January 20, 1987
    Assignee: Sanshin Kogyo Kabushiki Kaisha
    Inventors: Michihiro Taguchi, Akihiro Onoue
  • Patent number: 4630719
    Abstract: A cone clutch sleeve (18) on a main shaft (15) is moved axially between forward and reverse counter-rotating gears (13 and 14) by a yoke (102) having mirror-image oppositely tapered cams (108 and 109) on opposite sides thereof which are selectively rotatable to engage eccentric rings (132 and 133) on the forward and reverse gears. This engagement drives the yoke away from the one engaged gear and toward the other gear to in turn drive the clutch sleeve out of engagement with the one gear such that torque applied through the cam-engaged gear ring assists clutch disengagement of the one gear such that requisite shift force decreases as speed and torque increases. The eccentric face surface of each ring actuates the yoke and drives the sleeve member out of engagement with the one gear and into engagement with the other gear with a pulsed impact hammer effect due to the eccentricity of the face surface as it rotates in a circumferential plane about the main shaft.
    Type: Grant
    Filed: August 13, 1985
    Date of Patent: December 23, 1986
    Assignee: Brunswick Corporation
    Inventor: Daniel F. McCormick
  • Patent number: 4527441
    Abstract: A shifting arrangement for a propelling unit for a vessel embodying an improved and simplified unitary control rod for operating a clutching element of a reversing gear. The control rod is long and torsionally resilient and a detent cooperates with the lower end of the control rod for achieving a snap action gear engagement.
    Type: Grant
    Filed: February 23, 1983
    Date of Patent: July 9, 1985
    Assignees: Yamaha Hatsudoki Kabushiki Kaisha, Sanshin Kogyo Kabushiki Kaisha
    Inventor: Ryoji Nakahama
  • Patent number: 4523487
    Abstract: A device for positioning and position stabilizing an inert mass supported for sluing on a base, comprising two driven portions (11,15) adapted to be driven by a motor (1) by way of controllable friction clutches (9,13) is furnished with a single rotor (5) driven by the motor (1) and cooperating with the two friction clutches to transmit a coupling torque in the same sense of rotation. Each driven portion (11,15) acts through separate power transmissions each (16-18,20-23) on the mass, one of the power transmissions effecting a reversal of the direction of rotation.
    Type: Grant
    Filed: August 16, 1983
    Date of Patent: June 18, 1985
    Assignee: IBP Pietzsch GmbH
    Inventors: Ludwig Pietzsch, Harald Kauer, Johannes Duren, Hugo Kuhn
  • Patent number: 4510816
    Abstract: The present invention provides apparatus for changing the direction of rotation of a rotating shaft without changing the direction of rotation of the motor driving the shaft. The present invention includes a drive gear which causes two driven bevel gears to rotate in opposite directions. A control shaft having cam surfaces selectively forces one of two sets of balls into engagement with one of the driven gears to couple that gear with the driven shaft to rotate the shaft in one direction. Rotation of the driven shaft is reversed by changing the position of the control shaft which uncouples one set of balls from the driven shaft and couples the remaining set of balls to the driven shaft.
    Type: Grant
    Filed: December 31, 1981
    Date of Patent: April 16, 1985
    Assignee: American Sterilizer Company
    Inventor: Harry A. Linden
  • Patent number: 4489623
    Abstract: An axle shaft and pump drive mechanism (12) for a vehicle (10) includes a continuously variable transmission unit (24), an axle shaft (20), a pump (22), and a coupling device (34,78) for connecting the transmission unit (24) to the axle shaft (20) or to the pump (22) and operating them individually through an infinitely variable speed ratio range. When the vehicle, such as a backhoe loader, is not being propelled, the continuously variable transmission unit (24) can be used to drive the implement pump (22) which can then be of the fixed displacement type for improved effectiveness.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: December 25, 1984
    Assignee: Caterpillar Tractor Co.
    Inventor: Peter Hakkenberg
  • Patent number: 4474072
    Abstract: Transmission, especially for boat motors, with a shift mechanism in which an amplification of the clutch force is achieved by threaded engagement of the gear-engaging sleeve with the associated shaft. The transmission has shock and oscillation absorbers built into the housing, comprising a pair of sets of cup springs which can be disposed between said shaft and the gears to provide limited axial displacement of the shaft relative to the gears against the force of the springs when the sleeve is rotated relative to the shaft.
    Type: Grant
    Filed: March 2, 1982
    Date of Patent: October 2, 1984
    Assignee: AB Volvo Penta
    Inventor: Oddbjorn Hallenstvedt
  • Patent number: 4460075
    Abstract: A reversing drive unit used in association with a clutch/brake unit and a motor driven in only one direction comprising a first shaft, a housing around at least a portion of the shaft with a second shaft extending from a position interior the housing to a position exterior of the housing, a gear disposed at the end of the second shaft engageable with one or the other of a first and second annular gears disposed on and coaxially encircling the axis of the first shaft, and a mechanism to engage one or the other of the annular gears, with the second shaft gear moving the gears between a first position for affecting engagement of the first annular gear with the second shaft gear to provide relative rotation between the second shaft and the first shaft in one direction and a second position for affecting engagement of the second annular gear with the second shaft gear to provide relative rotation between the second shaft and the first shaft in a second direction opposite to said first direction.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: July 17, 1984
    Assignee: Sommer Co.
    Inventor: Gordon M. Sommer
  • Patent number: 4449957
    Abstract: A drive apparatus including a driving section and a driven section interconnected by a flexible belt which passes over pulley members respectively associated with each of the driving and driven sections. At least one of the driving and driven sections comprises a housing, a central shaft section mounted for rotation within the housing, the central shaft section having a gear assembly provided on a central portion thereof for rotation therewith, and first flange means provided on at least one of the end portions thereof. At least one lateral shaft section is provided having a pulley member mounted thereon for rotation therewith, the lateral shaft section having second flange means provided on one of its end portions. The lateral shaft section is removably connected to the central shaft section by means of connector elements interconnecting said first and second flange means.
    Type: Grant
    Filed: November 15, 1978
    Date of Patent: May 22, 1984
    Assignee: SKF Industrial Trading & Development Company B.V.
    Inventor: Hendrikus J. Kapaan
  • Patent number: 4411170
    Abstract: A wire rolling mill in block form, a so-called wire block, with driving bevel gears which are disposed on a longitudinal shaft and can be selectively coupled by means of clutches with the line shaft and with slow speed supplementary drives for each driving bevel gear, each such supplementary drive becoming operational as the associated driving bevel gear is disengaged, so that shut-down drive lines for inoperative rolls are kept in rotating motion. The supplementary drives are engaged by means of axially slideable driving wheels, more particularly driving wheels of bevel gear construction, which mesh with the driving bevel gears in driving connection only when the associated clutch is disengaged.
    Type: Grant
    Filed: April 10, 1981
    Date of Patent: October 25, 1983
    Assignee: Mannesmann Aktiengesellschaft
    Inventor: Herbert Vogelgesang
  • Patent number: 4397198
    Abstract: A reversing double cone clutch drive assembly for a boat comprising a horizontal input shaft, a vertical intermediate output shaft, a first housing provided with an opening in a side wall opposite to the input shaft and an opening in a bottom wall through which the lower end of said intermediate output shaft is exposed, and selectable gear transmission subassemblies attachable to such clutch drive assembly, each subassembly including a second housing with a generally horizontal wall for engaging such bottom wall, said second housing carrying a bearing which mounts an output shaft driven through gear means by said intermediate output shaft said housings being filled interiorly with lubricating oil, in heat exchange relationship with cooling water exterior of said housing.
    Type: Grant
    Filed: May 20, 1980
    Date of Patent: August 9, 1983
    Assignee: AB Volvo Penta
    Inventors: Kjell-Idar Borgersen, Lennart H. Brandt