Abstract: A starter motor construction including a drive shaft and a spline having an external helical thread is disposed concentrically of the shaft and rotates therewith. An internally threaded pinion is engaged with the spline and moves axially outward on rotation of the drive shaft against the force of a biasing spring to effect engagement of the pinion with a ring gear on the flywheel of the engine. A cushioning mechanism is incorporated between the drive shaft and the spline and includes a pair of metal plates, one of which is secured to the drive shaft and the other to the spline. A resilient disc composed of a rubber-like material is bonded to the opposed faces of the plates and is provided with a continuous peripheral groove. The cushioning mechanism acts to absorb radial torque and axial force as the pinion is moved into engagement with the ring gear.

Abstract: A starter motor wherein a rear bracket 7 can be commonly used for another starter motor having a different position for a through bolt 8 and a planar seat for a through bolt can be assured readily. The starter motor comprises a retaining member 10 which retains an armature rotary shaft in position, a cover 20a mounted on the rear bracket for covering over the retaining member, a plurality of headed through bolts for fastening the rear bracket and a machine frame 4 together to a front bracket 6, and a plurality of supports 20b for engaging with the heads of the through bolts. The cover and the supports are formed in an integral relationship with each other.

Abstract: A starter drive for an internal combustion engine having a clutch to provide rotary torque from a starter motor to a pinion gear connectable to a gear associated with an engine. The clutch has means for indexing the pinion gear to engage the gear associated with the engine, means for maintaining the teeth of the clutch engaged during the indexing function, means for automatically separating the clutch teeth when the engine starts and for maintaining separation of the teeth as long as the rotational speed of the pinion gear is greater than a predetermined speed. The starter drive includes two serially arranged resilient members between a driven clutch member and the sleeve on which the starter drive is slidably mounted. The housing is resiliently suspended between the two resilient members.

Abstract: A starter motor having a pinion engageable with a ring gear of an engine to start the engine by the motor. The pinion of the starter motor is the over-hang type which is over-hanging relative to a front housing, and the number of teeth of the pinion is seven.

Abstract: The coaxial engine starter of the present invention comprises an electric motor having a rotary armature shaft and a yoke, a solenoid switch disposed behind the electric motor, an output rotary shaft disposed in front of the electric motor in an axially aligned relationship, and a planetary speed reduction gear disposed in front of and in axial alignment with the electric motor. The planetary speed reduction gear comprises a sun gear disposed on the motor armature shaft, a plurality of planetary gears disposed around the sun gear and an inner gear disposed around the planetary gears. The output rotary shaft has mounted thereon a pinion gear for engaging with an engine ring gear to be driven.

Abstract: A coaxial starter comprising an electric motor which produces torque; a speed reduction planet gear mechanism which transmits the rotation of the armature shaft of the motor so that the rotational speed of the output portion of the mechanism is lower than that of the shaft; an overrunning clutch which transmits the output torque of the mechanism when the clutch is engaged; an output rotary shaft whose rear portion constitutes the inner member of the clutch; a pinion provided on the outside circumferential surface of the output rotary shaft so that the pinion is engaged with the ring gear of an engine as the torque of the output rotary shaft is received by the pinion; an electromagnetic switch provided around the pinion to move the pinion forward and energize the motor; and a spring provided between an actuator, which is moved forward when the switch is energized, and the pinion to push said pinion forward.

Abstract: An engine starter comprises an elongated pinion shifter unit 23 axially slidably mounted on an output rotary shaft 21 coupled to a d.c. motor for rotation therewith, and includes a pinion 8 mounted at a first end of the unit and a unidirectional clutch 6 disposed at a second end. A first sleeve bearing 24 is disposed between the first end of the pinion shifter unit and the output rotary shaft, and a second sleeve bearing 25 is disposed between the second end of the pinion shifter unit and the output rotary shaft. The first and the second sleeve bearings are spaced apart from each other, and the first sleeve bearing is made of a material wear resistant under a relatively large load, such as an iron-based material, and the second sleeve bearing is made of a material wear resistant under a high speed rotation condition, such as a copper-based material.

Abstract: An engine starter motor comprising a d.c. motor having an armature rotary shaft 7 an over-running clutch 31 slidably mounted on the armature rotary shaft between a forward position and a rearward position and including a clutch inner cylinder 32, and a pinion 33 mounted on the clutch inner cylinder. In order to energize the d.c. motor and slide the over-running clutch together with the pinion between the forward and rearward positions, a solenoid switch 15 and a shift lever 34 are provided. The shift lever comprises a main body 34a, a first end portion 34b operatively coupled to the solenoid switch and a second end poriton operatively coupled to the over-running clutch. The second end of the shift lever is bifurcated into two tines 34e and each of the tines is provided with a forward extension 344 forwardly extending substantially parallel to the rotary shaft and an inwardly extending engagement projection 34g for engagement with the over-running clutch.

Abstract: An inertia sliding type engine starter motor, wherein an inner member 24b of an over-running clutch rotatable with an armature rotary shaft is axially forwardly immovably supported by a bearing 28 mounted to a front housing 22. The clutch inner member has helical splines 29 formed in its inner circumference, the pinion 30 is axially slidably mounted on the rotary shaft, and a rotational force is transmitted from the clutch inner member to the pinion through the helical splines. The pinion has formed at its rear portion a flange 30d having an outer diameter larger than a diameter of an opening in the front end of the front housing. The front end of the clutch inner member and the rear end surface of the pinion abut with each other when the pinion is disengaged with an engine ring gear, and the armature rotary shaft in front of the pinion is covered by a cover 34.

Abstract: A pinion shifting mechanism of an automotive engine starter is disclosed in which the pivot support 5c of the shift lever 5 on which it turns is supported at its rear side by a resilient support means 32 instead of a rigid support surface. The shift lever operatively coupling the plunger 7 of the electromagnetic switch 4 with the pinion assembly is coupled to the plunger via an engager member 15 slidably disposed in the cylindrical bore formed in the plunger. The engager member is urged backward with respect to the plunger by a helical spring 17 disposed around the engager within the bore of the plunger. When the plunger is attracted from the initial front position toward the stationary core 8 of the electromagnetic switch, the resilient support means yields first to allow a backward translation of the pivot support of the shift lever; the spring urging the engager yields only afterwards.

Abstract: A moisture drain bush for use in a moisture drain hole in an engine starter motor housing wall comprises a stem having a first and a second end and an axial length equal to a housing wall thickness and having an axial groove extending between the first and second ends of the stem. A first flange may be frustoconical shape so that its conical circumferential surface guide and assists smooth insertion of the flange into the drain hole, and has a flat inner surface radially extending from the first end of the stem and larger than the drain hole is provided. The first flange also has a first radial groove connected to one end of the axial groove in the stem and radially extending to the outer periphery of the first flange. A second flange having a flat inner surface radially extends from the second end of the stem and larger than the drain hole is provided.

Abstract: A starter of magnetic pinion shift type wherein a waterproofing boot 21 is provided on a shift lever 8 for shifting a pinion slidably fitted into an output rotary shaft of a motor provided for an engine of a vehicle to waterproof an electro-magnetic switch 5 disposed below the motor.

Abstract: An engine starter suitable to be used under severe corrosive conditions is disclosed, wherein the inner race of the ball bearing for supporting the pinion driving shaft is made of a martensitic stainless steel hardened by a heat treatment, which is effective in maintaining a good sliding contact between the inner race of the bearing and the pinion driving shaft. The balls of the bearing may be covered by a seal at both open sides thereof; further, the front open end of the pinion may be closed by a cap.

Abstract: A device for supporting an overhang type slidable pinion shaft of an electric motor for starting an engine comprises a bearing for supporting the pinion shaft, the bearing including an inner ring having a groove provided in its inner peripheral surface. Accordingly, it is possible to secure grease or oil in the groove provided in the inner peripheral surface of the inner ring of the bearing and it is therefore possible to minimize the boundary friction occurring between the inner peripheral surface of the inner ring of the bearing and the sliding surface of the pinion shaft and, at the same time, enable the pinion shaft to slide even more smoothly.

Abstract: A coaxial type starter device comprises a motor having a dubular armature rotary shaft 22a, a rotary output shaft 3 partially inserted in the tubular armature shaft from its one side, the rotary output shaft being provided with a pinion 4 to be engaged with a ring gear of an engine, a driving force transmitting unit, disposed at one side of the motor and between the armature rotary shaft and the rotary output shaft, comprising a roller type overrunning clutch 30 and a planet gear wheel type speed reducing mechanism 10 for reducing a revolutional speed of the armature rotary shaft, and an electromagnetic switch, disposed at the other side of the motor, which causes the pinion of the rotary output shaft to engage with or disengage from the ring gear of the engine.

Abstract: A core and contact assembly for a solenoid switch in which a circumferential belt-shaped attractive force generating portion is formed on one surface of a core, a recess is formed in the attractive force generating portion, a removed portion is also formed in the core radially outwardly of the recess. Stationary contacts are disposed within the recess, and conductor portions extend from the stationary contacts to the other surface of the core through the removed portion. In order to insulatably secure the stationary contacts and the conductor portion with respect to the core, a resinous molded portion is provided, and a cover axially extending from the interior of the recess for surrounding around the stationary contacts is provided.

Abstract: A coaxial starter comprising an electric motor having an armature shaft which is a tubular shaft, an output rotary shaft slidable in the axial direction thereof extends at one end of the motor so that the torque of the armature shaft is transmitted to the output rotary shaft through a driving power transmission means. A pinion is provided on the output rotary shaft at the end of the coaxial starter. An electromagnetic switch provided at the other end of the motor has an actuator rod extending into the internal opening of the armature shaft through the opening of the wall of the motor so that the rod is moved in the axial direction of the motor at the time of electric energizing of the switch. This slides the output rotary shaft in the axial direction of the motor. The coaxial starter further comprises a bearing fitted in the opening of the wall and supporting the armature shaft and the rod.

Abstract: A starter motor for use with an internal combustion engine, which incorporates an idler gear that is constantly engaged with a translatable pinion gear to provide starting engagement and rotation to a driven gear on the engine.

Abstract: An engine starter has a cup-shaped front bracket 24 for containing an output rotary shaft 23 having a pinion 28 on its front end and axially slidable, a driving force transmitting unit 22, an electric motor 21 having a hollow cylindrical yoke fitted in rear a opening of the front bracket, and a solenoid switch 30 mounted to the rear portion of the electric motor and having an operating rod 35, 38 which extends through the interior of the electric motor to abut against the output rotary shaft for pushing out the output rotary shaft. The front bracket has on its outer periphery a mounting flange 42 of a mounting spigot joint diameter larger than the outer diameter of an inner gear 25b of a planetary speed reduction gear of the driving force transmitting unit or the outer diameter of the yoke of the electric motor.

Abstract: Starter motor for use with an internal combustion engine which includes a seal between the housing and the translatable clutch/pinion gear assembly so as to prevent contaminants from entering the motor/solenoid portion of the housing. The seal is temporarily broken whenever the clutch/pinion gear is translated to be engaged with the driven gear of an internal combustion engine.

Abstract: A starter for an internal combustion engine is disclosed which comprises a motor, an output shaft operatively coupled to the armature shaft of the motor, and an axially slidable assembly splined to the output shaft and including an overrunning clutch and a hollow shaft having a pinion formed at the front end thereof.According to a first aspect of the invention, at least a portion of the pinion, the teeth of which have a top surface of substantial circumferential width, is, when the hollow shaft is at the extreme rear position, received into and supported by an annular ball bearing which is mounted to the front frame to rotatably and axially slidably support the hollow shaft. According to a second aspect, the rear side surface of the ball bearing mounted to the front frame to support rotatably the hollow shaft abuts against the front side of the clutch to stop the forward movement of the axially slidably assembly.

Abstract: A coaxial type starter includes an overrunning clutch constructed to absorb external laods applied to the output shaft 5 through the pinion 8. In a first embodiment a moving tube 14 is disposed between a clutch inner 12 and the output shaft, and has helical splines in both surfaces thereof with their respective rotational directions reversed so that the tube is driven inwardly against an elastic absorber 16 when an external load is applied. A second embodiment is provided with an output shaft stopper 12D on the clutch inner itself, so that a forwardly moving force thereof is absorbed by an elastic body disposed between a projection 12C on the clutch inner and a bearing 15.

Abstract: A starter for an internal combustion engine is disclosed which comprises a motor, an output shaft operatively coupled to the armature shaft of the motor, and an axially slidable assembly splined to the output shaft and including an overrunning clutch and a hollow shaft having a pinion formed at the front end thereof.According to a first aspect of the invention, at least a portion of the pinion, the teeth of which have a top surface of substantial circumferential width, is, when the hollow shaft is at the extreme rear position, received into and supported by an annular ball bearing which is mounted to the front frame to rotatably and axially slidably support the hollow shaft. According to a second aspect, the rear side surface of the ball bearing mounted to the front frame to support rotatably the hollow shaft abuts against the front side of the clutch to stop the forward movement of the axially slidably assembly.

Abstract: A starter device for an internal combustion engine comprises an output shaft driven by a motor, and a hollow cylindrical assembly disposed coaxially around and axially slidably on the output shaft, which assembly includes a hollow shaft splined to the output shaft, and a hollow cylinder disposed at the front side of the hollow shaft and coupled thereto through an overrunning clutch which transmits a rotational force in one rotational direction. Integrally formed at the front end of the hollow cylinder is a pinion which is placed into driving engagement with a ring gear of the associated engine when the axially slidable assembly is slid to a front position by a shift lever which urges the clutch to move in the axial direction. According to one aspect of the present invention, an annular sealing member is interposed between the hollow cylinder and the output shaft at an axial position in front of the sleeve bearing which rotatably supports the hollow shaft around the output shaft.

Abstract: The starter includes a main shaft (2) which is selectively rotatable and has a threaded portion (4). A movable component (10) is fitted on the shaft and is provided with a pinion (14) and a threaded portion (12) which is coupled with the threaded portion (4) of the shaft (2) in such an arrangement that the rotation of the shaft (2) causes the movement of the movable component (10) towards an advanced position in which the pinion (14) meshes with a ring gear (C) of the internal combustion engine. In order to keep the movable component (10) in its advanced position during the starting operation, the members (13a, 13b) which act centrifugally are provided and have respective generally-arcuate portions which clamp around a tapered portion (5, 6) of the main shaft when the starter is activated as a result of the centrifugal diverging of the bodies.

Abstract: At least one axial groove is formed on an output shaft which extends from an end of the output shaft to a stop ring groove and has a depth substantially equal to that of the stop ring groove to allow a stop ring fitted therein to be pushed up by a pin or the like inserted along the axial groove into the stop ring groove. A stop ring groove may be formed in a position on the output drive shaft adjacent to an end thereof, and an extension of a pinion drive shaft is provided which extends from an end face of the pinion drive shaft to form a cylindrical protective cover for a stopper fitted by the stop ring received in the groove and protruding from the end surface of the pinion drive shaft when the latter is retracted fully.

Abstract: A device for supporting an overhang type slidable pinion shaft of an electric motor for starting an engine comprises a bearing for supporting the pinion shaft, the bearing including an inner ring having a groove provided in its inner peripheral surface. Accordingly, it is possible to secure grease or oil in the groove provided in the inner peripheral surface of the inner ring of the bearing and it is therefore possible to minimize the boundary friction occurring between the inner peripheral surface of the inner ring of the bearing and the sliding surface of the pinion shaft and, at the same time, enable the pinion shaft to slide even more smoothly.

Abstract: A starter includes a movable pinion cylinder mounted on a rotary output shaft so that the movable pinion cylinder is slidable on the rotary output shaft a by predetermined distance together with an overrunning clutch. The movable pinion cylinder has the front end portion formed into a pinion which is engaged with an engine ring gear, and the rear end portion formed into a clutch inner forming a part of the overrunning clutch. The starter further includes a cylindrical cap connected to the front end of the rotary output shaft to cover the front end portion of the rotary output shaft, a protrusion extended from the center of the end face of the cap toward the end face of the rotary output shaft, the protrusion having an air hole extended along the axial line thereof, and a hole formed in the end face of the rotary output shaft at the center to receive the protrusion.

Abstract: An engine starter is equipped with a motor having a cylindrical armature rotating shaft (3), a clutch mechanism (15) which transmits the rotational force of the motor, an output rotating shaft (17) which is disposed so as to be movable in the axial direction so as to mesh with the clutch mechanism (15), and a solenoid switch (25) which has a moving member (35) which pushes the output rotating shaft (17) in the axial direction by electromagnetic force and which causes a movable contact (39) to contact a stationary contact (40) and supply current to the motor. The rear portion of the output rotating shaft (17) and the front portion of the moving body (35) are both inserted into the cylindrical bore of the armature rotating shaft (3) from opposite ends. The rear bracket (7) of the motor is made from molded plastic.

Abstract: A coaxial starter motor comprising a d.c. motor having a hollow rotary shaft extended forward and a planetary speed reduction gear having a sun gear disposed on the outer periphery of the rotary shaft. The starter motor comprises an over-runing clutch of which inner sleeve rotates in one direction and is provided at the inner circumference with helical splines, the over-runing clutch being disposed on the front side of the rotary shaft and rotated at a reduced speed by the planetary gear speed reduction gear. Also provided is an output sleeve mounted on the front end portion of the rotary shaft and having a pinion at its front end portion and axially movably and relatively rotatably supported by a bearing, in which helical splines formed close to the rear portion of the outer periphery is in mesh with helical splines of the inner sleeve. A solenoid switch is disposed on the rear end portion of the d. c.

Abstract: A coaxial type starter used to start an engine of a vehicle is disclosed. The starter includes a d.c. motor having an armature rotary shaft which incorporates an overrunning clutch and six or more magnetic poles which are defined by permanent magnets disposed circumferentially on the inner surface of a tubular yoke for forming a magnetic path. Provision of six or more magnetic poles on the inner surface of the yoke enables a reduction in the thickness of the yoke and the diametrical thickness of the armature core since the required thicknesses of the yoke and the armature core are inversely proportional to the number of field magnetic poles. Accordingly, it is possible to incorporate the overrunning clutch inside the armature rotary shaft without any increase in the overall diameter of the starter. Thus, it is possible to achieve a reduction in the overall size of the starter.

Abstract: A starter motor includes axial protrusions 9a formed on an end face of a pinion 9 on the side of an engine starting gear 10 with which the pinion meshes to transmit rotation thereto, for breaking alien substances deposited around the pinion by rotation to thereby enable the pinion to mesh with the gear smoothly.

Abstract: A pinion assembly (30) for an electrical starter motor (20) includes a metallic pinion nut (4) threadedly received on an output shaft (22) of motor (20). A first bushing (36) includes a radially extending annular flange (40) which is fixed to and covers nut (4) and a cylindrical axially extending shell (42). A metallic drive pinion (32) is supported on shell (42) and is electrically insulated from shaft (20) by shell (42) and from nut (4) by annular flange (40). However, slip clutch (14) is located between first bushing (36) and drive pinion (32) to transmit torque therebetween. Finally, cylindrical member (62) retains drive pinion (32) on bushing (36).

Abstract: An engine starter in which a driven gear driven by the rotor of a starter motor and an output shaft driving a pinion meshing with the driven gear of an engine are mutually connected through a unidirectional clutch. The gear driven by the rotor and the clutch member driven by the driven gear are rotatably supported by, but separate from, the output shaft. Connection between the driven gear and the clutch member for torque transmission purposes is effected through a torque damper whereby the transmitted torque will be damped and engine noise reduced.

Abstract: Centrifugally disengageable engine starter gearing selectively starting an engine having a starting gear. The engine starter gearing includes a power shaft, a sleeve slidably secured to the power shaft, a pinion gear slidably mounted to the power shaft and movable into engagement with the starting gear, a driven clutch member secured to the pinion gear and having an annular or circular recess with an inclined or conical surface therein, a driving clutch member mounted to the sleeve, mutually engageable clutch teeth on the driving and driven clutch members, a barrel housing having an open end and being at least partly fitted over the driving and driven clutch members, an abutment confining the driving and driven clutch members within the housing, a resilient member biasing the driving and driven clutch members into mutual engagement, and a radially inwardly extending shoulder on the driving clutch member adjacent the circular recess.

Abstract: A reduction starter employing a planetary gear type reduction gear mechanism having an outer ring gear displaceable radially of a common axis of a central sun gear and an output shaft carrying planet gears for revolution about the common axis. The outer ring gear is formed by an internally toothed ring gear elastically deformable to assure uniform distribution of load torque to all planet gears. The tooth root bending stress of the ring gear is substantially equalized to the outer periphery bending stress thereof to improve the load performance of the planetary gear type reduction gear mechanism and thus reduce the size and weight of the starter. The outer ring gear has an outer rim of a radial thickness t and a plurality of radially inwardly extending teeth each having a height h. The rim thickness t is determined to'fall with a range of from +.ltoreq.0.8 h to +.gtoreq.0.4 h.

Abstract: The starting unit comprises start-up means for the engine, comprising: engagement means capable of being displaced in translation for engagement in complementary receiving means linked to the engine; actuating means for displacing the engagement means in translation; and drive means capable of driving the start-up means.

Abstract: A centrifugally disengageable engine starter gear of the positive shift type that has a clutch to provide for driving and indexing of the starter gear, an internal mechanism keeps the clutch teeth in engagement during the indexing function, and a centrifugal separator separates the clutch teeth in an overrunning condition. The separator includes radially movable centrifugal flyweight members circumferentially spaced in a circular recess that contains individually formed flyweight guides that cooperate therewith to prevent excessive circumferential displacement of the flyweights during their radial movement. The method of forming flyweight guides from the clutch housing is also disclosed.

Abstract: A starter drive for cranking an engine. The starter drive has a pinion. A bushing is press fitted to the bore of the pinion. The pinion and bushing are supported for rotation and sliding movement by a shaft or sleeve. A thin film of grease is located between the inner surface of the bushing and the outer surface of the shaft or sleeve. The inner surface of the bushing has a plurality of contaminant collecting grooves. The grooves collect the contaminants to thereby prevent grease degradation and wear out.

Abstract: Engine starter gearing of the positive shift dentil type clutch with a resilient member to absorb the torsional loads on the starter gearing upon its engagement, the starter gearing having a sleeve member with a straight spline on its inside surface and a helical spline on its outside surface whereby torque is imposed on a driving clutch member, the driving clutch member having an inside surface with a notch therein, a lock ring being positioned in the notch and engaging the sleeve member to fixedly position the sleeve member with respect to the driven clutch member.

Abstract: A starter drive is disclosed for a starting system of an internal combustion engine. A pinion is rotatably mounted on the starter motor shaft for engagement with the ring gear on the fly wheel of the engine. A drive sleeve disposed coaxially of the shaft is coupled with the pinion through an overrunning clutch. A helical cam and follower are connected between the shaft and the drive sleeve for advancing and retracting the pinion according to the relative speeds of the drive sleeve and the shaft. A friction brake is provided for the drive sleeve to restrain it against rotation during advancing movement of the starter drive. The starter motor has a permanent magnet field and the armature is connected across an electromagnet by the starter switch when it is turned off to provide dynamic braking for the motor. The electromagnet coacts with the permanent magnet brake to disable the friction brake while the motor is slowing down.

Abstract: A starting motor comprising an epicycle reduction gear, a sun gear installed at the end of the rotary shaft of a driving motor, a plurality of planet gears engaging with the sun gear, a flange for supporting the planet gears, and an internal gear having cylindrical means including an output shaft driven by the revolution of the planet gears and a gear formed on the inner peripheral face thereof, the gear engaging with the planet gears, and a side plate extended from the cylindrical means in the diametric direction and positioned opposite to the flange, a pinion capable of sliding on the output shaft, a bearing surface being formed on either the flange or side plate to allow the opposite contact to slide thereon and a recess filled with grease being provided in the bearing surface.

Abstract: A pinion shaft starter for internal combustion engines having its pinion coupled to the shaft of the starter motor through an overruning clutch is disclosed in which a dividing wall member is mounted to define in the starter housing a first chamber located on the side of the pinion and a second chamber on the side of the starter motor, with a dust discharging vent formed in the first chamber, at a circumferential point externally of the wall member. The wall member is provided to encircle the external circumference of the overrunning clutch regardless of the position of the clutch which is axially moved by the solenoid switch to bring the pinion into or out of engagement with the ring gear on the flywheel through an opening formed in the starter housing. To insure sealing between the outside clutch circumference and wall member, an annular ring is provided along the inside periphery of the wall member.

Abstract: A starter drive for an internal combustion engine in which the starter drive is mounted within the starter housing, and an ignition key activated solenoid for energizing the motor of the starter drive is contained in a solenoid housing that is attached to the starter housing and is integral therewith. The solenoid has a solenoid coil and an annular armature, and upon the energization of the solenoid coil by the connection of such solenoid coil to the battery through the ignition key, the annular armature, which is normally spring biased away from the solenoid coil, is magnetically attracted thereto. This movement of the annular armature establishes an electrical contact between a first terminal, which is connected to the battery, and a second contact which is connected to the starter motor.

Abstract: A starter includes two electric drive motors (1, 2), with parallel axes (3, 4), coupled to the same reduction gear (11, 14) whose output shaft (15) is connected to a single Bendix starter (18). Shaft (6) of one of the motors (1) exhibits a reversible thread (23) on which is mounted a nut pinion (7), engaged with a gear wheel (11) of the reduction gear and further connected to control lever (27), which is connected to Bendix starter (18). When first electric motor (1) is started, nut pinion (7) is braked in rotation by passive resistances, and therefore moved axially, which, by lever (27), causes the advance of Bendix starter (18), bringing pinion (21) of the latter to engage with ring gear (22) of the internal combustion engine.

Abstract: An engine starter for engagement with the starting gear of an engine to be started. The engine starter has a power shaft rotatably driving a secondary driving clutch member through mutually engageable straight splines. The secondary driving clutch member drives the secondary driven clutch member through mutually engageable inclined dentil teeth which, in turn, rotatably drive a sleeve through mutually engageable helical splines. The sleeve rotatably drives a primary driving clutch member through mutually engageable helical splines which, in turn, drive the pinion gear through mutually engageable primary dentil teeth. An open ended housing is provided to enclose the several clutch members, the housing being provided with removable abutment means for containing the several clutch members therein. A first biasing element is provided between the secondary driven clutch member and the primary driving clutch member, and second biasing means are provided between the secondary driven clutch member and the housing.

Abstract: The friction disc clutch for a motor vehicle driven by an internal combustion engine comprises a flywheel which is driven through a rotationally elastic element by the crankshaft of the internal combustion engine. The mass-spring system of the drive path of the clutch is so dimensioned that natural vibrations occur in or below the idling rotation rate range of the internal combustion engine. The rotationally elastic element can be bridged over for rotation rates in the range of and below the idling rotation rate in order to prevent resonance effects in idling and in the starting of the internal combustion engine. The bridge-over clutch can be formed by a pinion of the starter motor. Alternatively, centrifugal clutches can be used.

Abstract: The starting system for an internal combustion engine includes a crankshaft and a camshaft sprocket which form the carrier for a planet pinion set whose elements are continuously engaged with a sun gear mounted and a ring gear mounted by a one-way brake to the engine block. A starting motor is connected by an endless chain or belt to a sprocket connected by a one-way driving connection to the sun gear. An accessory drive pulley and the rotor of the engine oil pump are continuously and directly connected to the sun gear. A hydraulic piston, actuated by engine oil pressure, selectively breaks the ring gear when engine speed is below a predetermined value provided engine oil pressure is at least equal to a predetermined pressure and releases the ring gear when engine speed exceeds the predetermined speed.

Abstract: This invention relates to a starting system for an internal combustion engine comprising a prime mover, a pinion which is disposed at one end of the rotary shaft of the prime mover and which is held in rushing-in meshing engagement with a ring gear of an engine, the engine being a first load device, and a one-way clutch which is disposed at the other end of the rotary shaft of the prime mover and which generates a driving force in only a rotating direction reverse to a driving direction of the ring gear, a unidirectional turning force being applied to a second load device through the one-way clutch.

Abstract: A reduction type starter, wherein an idle shaft is mounted in a starter housing in parallel with a motor shaft and a pinion drive shaft, and an over running clutch is provided on the idle shaft so that a reduction of rotational speed can be performed at two stages.