WO2012131974A1 - エンジン始動装置 - Google Patents
エンジン始動装置 Download PDFInfo
- Publication number
- WO2012131974A1 WO2012131974A1 PCT/JP2011/058210 JP2011058210W WO2012131974A1 WO 2012131974 A1 WO2012131974 A1 WO 2012131974A1 JP 2011058210 W JP2011058210 W JP 2011058210W WO 2012131974 A1 WO2012131974 A1 WO 2012131974A1
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- WO
- WIPO (PCT)
- Prior art keywords
- gear
- pinion gear
- engine
- pinion
- engine start
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
- F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
- F02N15/062—Starter drives
- F02N15/065—Starter drives with blocking means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
- F02N15/023—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch of the overrunning type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
- F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
- F02N15/062—Starter drives
- F02N15/063—Starter drives with resilient shock absorbers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
- F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
- F02N15/067—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement the starter comprising an electro-magnetically actuated lever
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N11/00—Starting of engines by means of electric motors
- F02N11/08—Circuits or control means specially adapted for starting of engines
- F02N11/0851—Circuits or control means specially adapted for starting of engines characterised by means for controlling the engagement or disengagement between engine and starter, e.g. meshing of pinion and engine gear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
- F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
- F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
- F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
- F02N15/043—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the gearing including a speed reducer
- F02N15/046—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the gearing including a speed reducer of the planetary type
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/13—Machine starters
- Y10T74/131—Automatic
- Y10T74/134—Clutch connection
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/13—Machine starters
- Y10T74/131—Automatic
- Y10T74/137—Reduction gearing
Definitions
- the present invention includes a pinion gear portion that rotates in accordance with rotation of an output rotation shaft that is driven by a motor portion, and a push-out mechanism that moves the pinion gear portion toward a meshing position between the pinion gear and an engine start gear.
- the present invention relates to an engine starter that starts the engine by the rotational force of the motor unit via the pinion gear and the engine start gear meshed with each other.
- Patent Documents 1 and 2 in order to transmit the motor rotational force of the engine starting device to the engine, it is necessary to provide an elastic member such as a spring on the moving rotation member having a pinion that meshes with the ring gear on the engine side.
- a first stopper portion that restricts the axial movement of the movable rotating member toward the distal end side of the bracket nose portion (None of Patent Documents 1 and 2 has a symbol, but the output shaft in FIG. 1 of Patent Documents 1 and 2) 4 and 13 is a portion indicated by hatching in the vicinity of the tip support portion) and a second stopper portion for restricting axial movement of the pinion biased by the elastic member toward the ring gear (in FIG. 1 of Patent Document 1)
- Patent Document 2 a third stopper portion that restricts the axial movement of the pinion to the opposite side of the second stopper portion (FIG. 1 of Patent Document 1).
- Definitive reference numeral 27, will consist of three stages of code 42) in FIG. 1 of Patent Document 2, it is inevitable that the axial length of the pinion tip until the engine starting device tip becomes longer, the engine starting device simultaneously Depending on the layout of the engine, it may be difficult to secure the clearance with the engine peripheral parts when installing the engine starter. .
- a stopper fixing groove is provided on the outer periphery of the output shafts 4 and 13, and the first stopper portion is attached to the output shafts 4 and 13 through the O-rings in the stopper fixing grooves.
- the bracket has a bracket nose and the tip of the bracket nose supports the tip of the output shaft, if excessive force is applied to the output shaft, such as when starting the engine, the stopper fixing groove There is also a concern that the stress is concentrated and the output shaft is bent or broken in the worst case.
- the present invention has been made in view of the above-described circumstances, and an object thereof is to shorten the axial length of the rotating member, and consequently to shorten the overall length of the engine starting device.
- An engine starter includes a motor unit, a pinion gear unit that rotates with rotation of an output rotation shaft driven by the motor unit, and an engagement position between the pinion gear unit and the engine start gear.
- An extruding mechanism that moves toward the direction of the motor, a bracket main body that supports the extruding mechanism, and a front end of the output rotating shaft opposite to the motor that extends from the bracket main body to the opposite side of the motor.
- an engine starter that includes a nose portion that rotatably supports a portion, a bracket that is attached to the engine side, and that starts the engine by the rotational force of the motor portion via the pinion gear and the engine start gear that mesh with each other
- the pinion gear portion is spline-coupled to the output rotation shaft and is moved in the direction of the engine start gear by the push-out mechanism, and is rotated along with the rotation of the output rotation shaft.
- the pinion gear portion is movably fitted in the gear direction and is moved toward the meshing position by the push-out mechanism, the pinion gear moves with the rotating member and meshes with the engine starter gear as the output rotation shaft rotates.
- a pinion gear that rotates together with the rotating member, and an elastic member that presses and urges the pinion gear toward the engine start gear
- the output rotating shaft is provided with a first stopper portion that restricts movement of the rotating member in the direction of the engine start gear
- the rotating member is provided with a second stopper portion that restricts movement of the pinion gear in the direction of the engine start gear by the pressing bias of the elastic member in the previous period
- the first stopper portion is located on a side opposite to the engine start gear with respect to the second stopper portion.
- the engine starter according to the present invention includes a motor unit, a pinion gear unit that rotates in accordance with the rotation of an output rotation shaft driven by the motor unit, and the pinion gear unit between the pinion gear and the engine start gear.
- an engine starter comprising an extrusion mechanism for moving toward the meshing position, and starting the engine by the rotational force of the motor unit via the pinion gear and the engine start gear meshed with each other
- the pinion gear portion is spline-coupled to the output rotation shaft and is moved in the direction of the engine start gear by the push-out mechanism, and is rotated along with the rotation of the output rotation shaft.
- the pinion gear portion is movably fitted in the gear direction and is moved toward the meshing position by the push-out mechanism, the pinion gear moves with the rotating member and meshes with the engine starter gear as the output rotation shaft rotates.
- an engine starter includes a motor unit, a pinion gear unit that rotates as the output rotation shaft driven by the motor unit rotates, and the pinion gear unit including the pinion gear and the engine start gear.
- An extruding mechanism that moves toward the meshing position, a bracket main body that supports the motor and the extruding mechanism, and extends from the bracket main body to the side opposite to the motor, and is opposite to the motor of the output rotation shaft
- An engine that includes a nose portion that rotatably supports the tip portion on the side and is attached to the engine side, and that starts the engine by the rotational force of the motor portion via the pinion gear and the engine start gear that are engaged with each other
- the pinion gear portion is spline-coupled to the output rotation shaft and is moved in the direction of the engine start gear by the push-out mechanism, and is rotated along with the rotation of the output rotation shaft.
- the pinion gear portion When the pinion gear portion is movably fitted in the gear direction and is moved toward the meshing position by the push-out mechanism, the pinion gear moves with the rotating member and meshes with the engine starter gear as the output rotation shaft rotates.
- a pinion gear that rotates together with the rotating member, and an elastic member that presses and urges the pinion gear toward the engine start gear
- the output rotating shaft is provided with a first stopper portion that restricts movement of the rotating member in the direction of the engine start gear
- the rotating member includes a second stopper portion that restricts movement of the pinion gear in the direction of the engine start gear due to the pressing bias of the elastic member in the previous period, an outer peripheral side of the rotating member, and an inner peripheral side of the pinion gear.
- a movement restricting portion is provided that restricts movement of the pinion gear in a direction opposite to the direction of the engine start gear
- the first stopper portion is located on a side opposite to the engine start gear with respect to the second stopper portion.
- the output rotating shaft is provided with the first stopper portion that restricts the movement of the rotating member in the direction of the engine start gear, and the rotating member is pressed against the elastic member.
- a second stopper portion for restricting the movement of the pinion gear in the direction of the engine start gear by the force, and the first stopper portion is located on the opposite side of the engine start gear from the second stopper portion. Therefore, even if the bracket has a bracket nose and the tip of the bracket nose supports the tip of the output rotating shaft, it is necessary to provide a stopper fixing groove at the tip of the output rotating shaft.
- the shaft length of the rotating member can be shortened and thus the overall length of the engine starting device can be shortened, and even if an excessive force is applied to the output shaft, such as when the engine is started, the stroke is reduced. Pas stress concentrates on a portion of the fixing groove is bent or the output shaft, also no concern that breakage in the worst case.
- the pinion gear portion is spline-coupled to the output rotation shaft, and is moved in the direction of the engine start gear by the push-out mechanism, and rotates with the rotation of the output rotation shaft.
- the pinion gear portion When the pinion gear portion is fitted to the rotating member so as to be movable in the direction of the engine starting gear and moved toward the meshing position by the push-out mechanism, it moves together with the rotating member and meshes with the engine starting gear.
- a pinion gear that rotates together with the rotating member as the output rotating shaft rotates, an elastic member that presses and urges the pinion gear toward the engine start gear, and the pinion gear that is urged by the elastic member.
- the third stopper portion reference numeral 27 in FIG. 1 of Patent Document 1 and reference numeral 42 in FIG. 1 of Patent Document 2 that restricts the axial movement of the pinion to the opposite side of the second stopper portion.
- the axial length of the rotating member can be shortened, and hence the overall length of the engine starting device can be shortened, and the processing cost can be reduced and the productivity can be improved.
- the overall length of the engine starter can be shortened, the establishment of the engine-side layout can be improved in mounting the engine starter.
- Embodiment 1 of this invention is sectional drawing which shows an example of an engine starting device. It is a figure which shows Embodiment 1 of this invention, and is sectional drawing which shows an example of a mechanism part. It is a figure which shows Embodiment 1 of this invention, and is a figure for demonstrating the structure of an example of a 1st stopper part, for demonstrating the assembly of a movement rotation member, and for explaining the function of a 1st stopper part. It is a figure which shows Embodiment 2 of this invention, and is sectional drawing which shows an example of a movement control part. It is a figure which shows Embodiment 3 of this invention, and is sectional drawing which shows an example of a rotation member. It is sectional drawing which shows the conventional moving rotation member.
- FIG. 1 is a cross-sectional view showing an example of an engine starting device
- FIG. 2 is a cross-sectional view showing an example of a mechanism portion
- FIG. 3 shows an example of the structure of a first stopper portion, and illustrates the assembly of a moving rotary member. It is a figure for demonstrating the function of a 1st stopper part.
- an engine starter 1 energizes a motor 9 that generates torque when electric power is supplied, an electromagnetic switch 12 that switches on / off of electric power supply to the motor 9, and a solenoid coil 11 in the electromagnetic switch 12.
- the plunger 10 is magnetized and the power supply to the motor is switched on and off by the movement.
- the pushing mechanism 4 is attached to the hook 13 attached to the plunger, and the pushing mechanism 4 is attached to the electromagnetic switch 12.
- a movable rotating member 5 having a one-way clutch mechanism that cuts off torque from the ring gear side when pinched to an engine start gear (hereinafter referred to as “ring gear”) 3 such as a ring gear on the opposite side;
- ring gear an engine start gear
- a planetary gear 6 disposed behind the moving rotary member 5 for transmitting a deceleration torque and an inter
- a reduction mechanism comprising a gear 7, an output rotating shaft 8 having a helical spline coupling portion for holding the planetary gear and the internal gear, and the helical spline coupling portion transmits torque to the movable rotating member 5 and simultaneously moves.
- the moving and rotating member 5 includes a thrust spline 14, a roller 15, a pinion gear portion (consisting of pinion gears 17, 17a and 17b, a second stopper portion 18, a rotating member 19 and the like).
- the output rotating shaft 8 is supported at the tip by a bearing provided at the tip of the front bracket on the engine side, and the helical spline portion 2 provided on the output rotating shaft 8 is a meshing portion that engages with the moving rotating member 5. 2a, and a first stopper portion 2b that is provided across the meshing portion 2a and the groove and restricts the movement of the movable rotating member 5 in the axial direction.
- the meshing portion 2a has a spline shape
- the first stopper portion 2b has a spline shape according to the gear specifications in phase with the meshing portion 2a, but the gear of the first stopper portion 2b.
- the shape is a tooth shape with respect to the gear of the meshing portion 2a, and the spline shape of the thrust spline 14 of the movable rotating member 5 that engages with the meshing portion 2a is a gear shape corresponding to the first stopper portion 2b. It has become.
- the spline portion 14a of the thrust spline 14 is inserted into the engagement portion 2a of the helical spline portion 2 and the first stopper portion 2b as shown by the arrow A. At this time, the spline portion 14a of the thrust spline 14 and the meshing portion 2a are designed not to wrap in the axial direction (see FIG. 3A). Next, the spline portion 14a of the thrust spline 14 is rotated in the tooth-separating direction as indicated by the arrow B with respect to the gear specifications of the meshing portion 2a (see FIG. 3B).
- the spline portion 14a of the thrust spline 14 is moved in the front direction, and a treadle (retaining ring) 22 that restricts the movement in the rear direction is attached.
- the position of the tomewa 22 is designed so that the spline portion 14a of the thrust spline 14 and the meshing portion 2a wrap in the axial direction (see FIG. 3C). With such a structure, it can be assembled relatively easily.
- the pushing mechanism 4 causes the movable rotating member 5, that is, the pinion gear portion, that is, the rotating member 19, to engage with the pinion gear 17 and the engine starting gear 3.
- the spline portion 14a of the thrust spline 14 moves in the direction of the arrow C to the position of the one-dot chain line, contacts the first stopper portion 2b, and moves and rotates toward the meshing position.
- the axial movement of the member 5, that is, the pinion gear portion, that is, the rotating member 19, is restricted by the first stopper portion 2b.
- the axial length increase from the tip of the pinion 17 to the tip of the engine starting device 1 can be reduced, and at the same time, the inside of the engine starting device 1 As a result, a collision noise between the spline portion 14a of the movable rotating member 5 and the first stopper portion 2b is generated, so that an effect can be expected for sound reduction.
- FIG. 4 is a cross-sectional view showing an example of the movement restricting portion.
- the movable rotating member 5 includes a thrust spline 14 having a helical spline having a helical spline that engages with the output rotating shaft 8, a cylindrical rotating member 19 having a clutch inner function,
- the wedge 15 formed between the thrust spline 14 and the rotating member 19 is composed of a roller 15 and a spring (not shown), and functions as a one-way clutch.
- the outer peripheral portion on the front side of the rotating member 19 is formed with a serration shape, and the torque from the rotating member 19 is transmitted to the pinion 17 by fitting with the pinion 17 similarly formed with the serration shape on the inner diameter side.
- An elastic member 16 such as a spring is sandwiched between the rotating member 19 and the pinion 17, and a second stopper portion 18 that restricts the axial movement of the pinion 17 is configured at the tip of the rotating member 19. .
- the rotation member side movement restricting contact surface 20a in which a 45 degree rounded-up portion is formed at the rear end portion of the serration portion formed on the outer periphery of the rotation member 19, and the inner diameter of the pinion 17
- the rear end face of the serration is provided with a pinion side movement restricting contact surface 20b chamfered by 45 degrees to form a movement restricting portion 20, and the rotation restricting side movement restricting contact surface 20a of the movement restricting portion 20
- the movement of the pinion can be restricted by the contact of the pinion side movement restricting contact surface 20b.
- FIG. Embodiment 3 of the present invention will be described below with reference to FIG.
- FIG. 5 is a cross-sectional view showing an example of the rotating member.
- the pinion part has a protruding tooth shape for synchronization, a first pinion 17a that first collides with the ring gear 3 at the start of meshing with the ring gear 3, and a second that plays a role of transmitting rotational force after meshing. And the pinion 17b. From this, even in the specifications of eco-run systems such as idling stop systems such as engaging the pinion 17 while the ring gear 3 is rotating, more reliable synchronization and phasing are performed instantaneously, reducing the life due to noise and wear. In addition, an engine starter that does not cause a delay in startability due to a loss of engagement time can be obtained.
- the first and second pinions are changed even if the pinion shape is changed. Since the pinions 17a and 17b can be attached to the rotating member 19, the invention of the second embodiment can be applied.
- FIGS. 1 to 5 and Embodiments 1 to 3 have the following technical features.
- Feature point 1 motor unit 9, pinion gear unit (configured by 17, 17a, 17b, 18, 19 etc.) that rotates with the rotation of the output rotary shaft 8 driven by the motor unit 9, and the above Extrusion mechanism 4 for moving the pinion gear portion (comprising 17, 17a, 17b, 18, 19 etc.) toward the meshing position of the pinion gear 17 and the engine start gear 3, the motor portion 9 and the extrusion
- a bracket main body 231 that supports the mechanism 4 and a nose that extends from the bracket main body 231 to the side opposite to the motor unit 9 and rotatably supports a tip end of the output rotating shaft 8 opposite to the motor unit 9.
- a bracket 23 that is attached to the engine side and includes the pinion gear 17 and the engine start gear 3 that are engaged with each other.
- the pinion gear portion (consisting of 17, 17a, 17b, 18, 19, etc.) is splined to the output rotary shaft 8 and moved in the direction of the engine starter gear 3 by the push-out mechanism 4 and the output.
- a rotating member 19 that rotates as the rotating shaft 8 rotates, and is fitted to the rotating member 19 so as to be movable in the direction of the engine starter gear 3 by the pinion gear portions (17, 17a, 17b, 18, 19, etc.).
- a pinion gear 17 that rotates together with the pinion gear 17 and an elastic member 16 that presses and urges the pinion gear 17 toward the engine starting gear 3.
- the output rotating shaft 8 is provided with a first stopper portion 2b for restricting the movement of the rotating member 19 in the direction of the engine start gear 3,
- the rotating member 19 is provided with a second stopper portion 18 that restricts the movement of the pinion gears 17a, 17b in the direction of the engine start gear 3 due to the pressing bias of the elastic member 16,
- the first stopper portion 2b is located on the opposite side of the engine start gear 3 with respect to the second stopper portion 18.
- Feature point 2 In the engine starter described in feature point 1, The first stopper portion 2b is formed in a spline portion on the output rotating shaft 8 side, and the spline portion on the rotating member 19 side comes into contact with the first stopper portion 2b, whereby the rotating member 19 has the spline portion. Movement in the direction of the engine start gear 3 is restricted.
- Feature point 3 motor unit 9, pinion gear unit (configured by 17, 17a, 17b, 18, 19 etc.) that rotates with rotation of output rotating shaft 8 driven by motor unit 9, and A push-out mechanism 4 for moving the pinion gear portion (consisting of 17, 17a, 17b, 18, 19, etc.) toward the meshing position between the pinion gears 17a, 17b and the engine starting gear 3 is provided and meshed with each other.
- the pinion gear portion (consisting of 17, 17a, 17b, 18, 19, etc.) is splined to the output rotary shaft 8 and moved in the direction of the engine starter gear 3 by the push-out mechanism 4 and the output.
- a rotating member 19 that rotates as the rotating shaft 8 rotates, and is fitted to the rotating member 19 so as to be movable in the direction of the engine starter gear 3 by the pinion gear portions (17, 17a, 17b, 18, 19, etc.).
- the pinion gears 17a and 17b rotating together with the pinion gears 17a and 17b and elasticity for pressing and urging the pinion gears 17a and 17b toward the engine starting gear 3
- Material 16 a stopper portion that restricts the movement of the pinion gears 17a and 17b in the direction of the engine start gear 3 by the pressing force of the elastic member 16, the outer peripheral side of the rotating member 19, and the pinion gears 17a and 17b.
- a movement restricting portion 20 that restricts the movement of the pinion gears 17a and 17b in the direction opposite to the direction of the engine starting gear 3.
- Feature point 4 In the engine starter described in feature point 3, A rotation member side movement restricting contact surface 20a is formed on the outer peripheral side of the rotation member 19, A pinion side movement restricting contact surface 20b is formed on the inner peripheral side of the pinion gears 17a, 17b, The pinion gear portion (comprising 17, 17 a, 17 b, 18, 19, etc.) is moved toward the meshing position by the pushing mechanism 4, whereby the pinion gears 17 a, 17 b are moved to the engine start gear 3.
- Feature point 5 In the engine starting device described in feature point 3 or feature point 4, The stopper portion is located on the engine start gear 3 side of the pinion gears 17a, 17b, The movement restricting portion 20 is located on the side of the pinion gears 17a, 17b opposite to the engine starting gear 3 side.
- the pinion gears 17a and 17b include a first pinion gear portion 17a on the engine start gear 3 side, and a second pinion adjacent to the first pinion gear portion 17a and opposite to the engine start gear 3 side. And a pinion gear portion 17b.
- the first pinion gear portion 17a is first moved by moving the pinion gear portion (consisting of 17, 17a, 17b, 18, 19 and the like) toward the meshing position by the push-out mechanism 4.
- the engine start gear 3 meshes with the second pinion gear portion 17b and the engine start gear 3 then meshes.
- Feature point 7 In the engine starter described in feature point 6, The thickness of the first pinion gear 17a in the direction of the engine starting gear 3 is smaller than the thickness of the second pinion gear 17b in the direction of the engine starting gear 3.
- Feature point 8 In the engine starting device according to feature point 6 or feature point 7, The first pinion gear 17a has a function of synchronizing rotation with the engine start gear 3, The second pinion gear 17 b has a function of transmitting the rotational force of the second pinion gear 17 b to the engine start gear 3 by meshing with the engine start gear 3.
- Feature 9 Motor unit 9, pinion gear unit (configured by 17, 17a, 17b, 18, 19, etc.) that rotates with rotation of output rotating shaft 8 driven by motor unit 9, and The push-out mechanism 4 for moving the pinion gear portion (comprising 17, 17a, 17b, 18, 19 etc.) toward the meshing position between the pinion gears 17a, 17b and the engine starting gear 3, the motor portion 9 and A bracket main body 231 that supports the push-out mechanism 4 and a front end of the output rotating shaft 8 opposite to the motor 9 extending from the bracket main body 231 to the opposite side of the motor 9 are rotatably supported.
- the pinion gears 17a and 17b meshed with each other and the engine start In the engine starting apparatus for starting the engine by the rotational force of the motor unit 9 via the A 3,
- the pinion gear portion (consisting of 17, 17a, 17b, 18, 19, etc.) is splined to the output rotary shaft 8 and moved in the direction of the engine starter gear 3 by the push-out mechanism 4 and the output.
- a rotating member 19 that rotates as the rotating shaft 8 rotates, and is fitted to the rotating member 19 so as to be movable in the direction of the engine starter gear 3 by the pinion gear portions (17, 17a, 17b, 18, 19, etc.).
- the output rotating shaft 8 is provided with a first stopper portion 2b for restricting the movement of the rotating member 19 in the direction of the engine start gear 3
- the rotating member 19 includes a second stopper portion 18 that restricts the movement of the pinion gears 17 a and 17 b in the direction of the engine start gear 3 due to the pressing force of the elastic member 16 in the previous period, and an outer peripheral side of the rotating member 19.
- a movement restricting portion 20 is provided that is configured to straddle the inner peripheral side of the pinion gears 17a and 17b and restricts the movement of the pinion gears 17a and 17b in the direction opposite to the direction of the engine starter gear 3,
- the first stopper portion 2b is located on the opposite side of the engine start gear 3 with respect to the second stopper portion 18.
- Feature point 10 In the engine starter described in feature point 9, A rotation member side movement restricting contact surface 20a is formed on the outer peripheral side of the rotation member 19, A pinion side movement restricting contact surface 20b is formed on the inner peripheral side of the pinion gears 17a, 17b, The pinion gear portion (comprising 17, 17 a, 17 b, 18, 19, etc.) is moved toward the meshing position by the pushing mechanism 4, whereby the pinion gears 17 a, 17 b are moved to the engine start gear 3.
- Feature point 11 In the engine starting device described in feature point 9 or feature point 10, The stopper portion is located on the engine start gear 3 side of the pinion gears 17a, 17b, The movement restricting portion 20 is located on the side of the pinion gears 17a, 17b opposite to the engine starting gear 3 side.
- Feature point 12 In the engine starting device according to any one of feature point 9 to feature point 11,
- the pinion gears 17a and 17b include a first pinion gear portion 17a on the engine start gear 3 side, and a second pinion adjacent to the first pinion gear portion 17a and opposite to the engine start gear 3 side. And a pinion gear portion 17b.
- the first pinion gear portion 17a is first moved by moving the pinion gear portion (consisting of 17, 17a, 17b, 18, 19 and the like) toward the meshing position by the push-out mechanism 4.
- the engine start gear 3 meshes with the second pinion gear portion 17b and the engine start gear 3 then meshes.
- Feature point 13 In the engine starter described in feature point 12, The thickness of the first pinion gear 17a in the direction of the engine starting gear 3 is smaller than the thickness of the second pinion gear 17b in the direction of the engine starting gear 3.
- Feature point 14 In the engine starting device described in the feature point 12 or the feature point 13, The first pinion gear 17a has a function of synchronizing rotation with the engine start gear 3, The second pinion gear 17 b has a function of transmitting the rotational force of the second pinion gear 17 b to the engine start gear 3 by meshing with the engine start gear 3.
- Feature 15 Relative to the starter motor 9, the moving rotary member 5 that is splined to the output shaft 8 side of the starter motor 9, and the cylindrical member 19 that constitutes a part of the moving rotary member 5
- the pinion portions 17a and 17b that are non-rotatably mounted, and the push-out mechanism 4 that moves the pinion portions 17a and 17b to a meshing position with the ring gear gear 3 are included.
- the pinion portion 17a pushed out by the push-out mechanism 4 , 17b, and a ring gear gear 3 that starts the engine by transmitting the rotational force of the starter motor 9, and the output shaft 8 restricts the movement of the movable rotating member 5.
- 1 stopper portion 2b is configured, and the cylindrical member 19 is configured with a second stopper portion 18 that restricts movement of the pinion portion in the axial direction.
- the first stopper portion 2b is arranged on the opposite side of the ring gear gear 3 than the second stopper portion 18.
- Feature point 16 In the engine starting device described in the feature point 15, the first stopper portion 2b is disposed on the inner periphery of the cylindrical member.
- Feature point 17 In the engine starting device described in the feature point 15 or the feature point 16, the first stopper portion 2b is formed on the spline portion of the output shaft, and the spline portion 14a provided on the inner periphery of the movable rotating member 5. However, the movement of the movable rotating member 5 toward the axial ring gear gear 3 is restricted by contacting the first stopper portion 2b.
- Feature point 18 In the engine starting device according to any one of the feature point 15 to the feature point 17, a stopper portion that restricts the axial movement of the pinion portions 17a and 17b on the ring gear gear 3 side of the cylindrical member 19 And an elastic member 16 such as a spring is provided on the opposite side of the stopper across the pinion portions 17a and 17b.
- the first pinion 17a and the second pinion 17b are An engine starter that is urged toward the side, when a force is applied to the end surface of the pinion portion, and when the pinion portions 17a and 17b move to the side opposite to the ring gear gear 3 while pushing and shrinking the elastic member 16,
- the pinion movement restricting portion 20 is provided on the cylindrical member so that the movement of the pinion portions 17a and 17b is restricted before the elastic member 16 reaches the full pressure length.
- Feature point 19 In the engine starting device described in the feature point 18, the pinion movement restricting portion 20 is formed at an end portion of the serration portion formed on the outer periphery of the cylindrical member 19.
- Feature point 20 In the engine starting device described in the feature point 19, the pinion movement restricting portion 20 forms a 45 ° rounded-up portion 20a at the end portion of the serration portion formed on the outer periphery of the cylindrical member 19, and the pinion 17
- the serrated end face is similarly chamfered at 45 degrees 20b, and movement is restricted by the contact between the raised portion 20a and the chamfered portion 20b.
- Feature point 21 In the engine starting device according to any one of the feature point 15 to the feature point 20, the pinion portions 17a and 17b have a protruding tooth shape for synchronization, and start to mesh with the ring gear gear 3. A first pinion gear 17a that first collides with the ring gear 3 at times and a second pinion gear 17b that plays a role of transmitting rotational force after meshing.
- An engine starter is provided that can reduce an increase in the axial length due to the elastic member 16 such as a spring being provided in the movable rotating member 5 and at the same time reduce an increase in the overall length of the engine starter.
- Characteristic 23 By disposing a stopper structure that restricts the movement of the movable rotating member 5 in the axial direction on the inner side of the movable rotating member 5, an increase in the axial length from the tip of the pinion 17 to the tip of the engine starting device is suppressed.
- An elastic member 16 such as a spring provided in the moving rotating member 5 is attached to the outer periphery of the cylindrical member that transmits the rotational force to the pinion 17, and the pinion 17 of the moving rotating member 5 is moved to the engine by the pushing mechanism 4 of the engine starting device.
- the elastic member 16 When the ring gear gear 3 protrudes in the direction of the ring gear gear 3 and comes into contact with the end face without engaging, the elastic member 16 is compressed to move the moving rotary member 5 forward relative to the pinion, and the elastic member 16 In order to avoid a state where the pressure becomes full pressure, the cylindrical member 19 and the like are not provided with a stopper portion (reference numeral 21 in FIG. 6) that restricts the movement of the pinion 17 in the axial direction.
- the axial length increase is suppressed by adding a function as a stopper 10a to the serration formed on the outer periphery of the cylindrical member 19 that transmits the rotational force to the pinion 17
- Feature 24 The axial length of the moving rotation member 5 of the engine starting device can be suppressed, and not only can the layout of the engine side be established in the installation of the engine starting device, but also the engine starting device During operation, a collision with the stopper 2b due to jumping out of the moving rotating member 5 occurs inside the engine starting device, so that an effect can be expected to reduce noise.
- the cylindrical member 19 of the moving rotating member 5 in the engine starting device has a stopper shape. Since it is not necessary to perform the processing (reference numeral 21 in FIG. 6), it is possible to reduce the processing cost and improve the productivity.
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Abstract
Description
また、特許文献1及び2においては、出力軸4,13の外周にストッパ固定溝を設け、当該ストッパ固定溝にOリングを介して第1のストッパ部を出力軸4,13に装着する構造であるため、ブラケットがブラケットノーズ部を有しブラケットノーズ部の先端部で出力軸の先端部を支承するタイプの場合は、エンジン始動時など過大な力が出力軸に加わるとストッパ固定溝の部分に応力が集中し、出力軸が曲がったり、最悪の場合折損してしまうことも懸念される。
前記ピニオンギア部は、前記出力回転軸にスプライン結合され前記押し出し機構により前記エンジン始動ギアの方向へ移動すると共に前記出力回転軸の回転に伴って回転する回転部材と、この回転部材に前記エンジン始動ギアの方向へ移動可能に嵌合され前記ピニオンギア部が前記押し出し機構により前記噛み合い位置の方へ移動させられると前記回転部材と共に移動して前記エンジン始動ギアと噛み合い前記出力回転軸の回転に伴って前記回転部材と共に回転するピニオンギアと、このピニオンギアを前記エンジン始動ギアの方向へ押圧付勢する弾性部材とを有し、
前記出力回転軸には、前記回転部材の前記エンジン始動ギアの方向への移動を規制する第1のストッパ部が設けられ、
前記回転部材には、前期弾性部材の押圧付勢による前記ピニオンギアのエンジン始動ギアの方向への移動を制限する第2のストッパ部が設けられ、
前記第1のストッパ部は、前記第2のストッパ部よりも前記エンジン始動ギアと反対側に位置しているものである。
また、この発明に係るエンジン始動装置は、モータ部、このモータ部により駆動される出力回転軸の回転に伴って回転するピニオンギア部、及び前記ピニオンギア部をそのピニオンギアとエンジン始動ギアとの噛み合い位置の方へ移動させる押し出し機構を備え、互いに噛み合った前記ピニオンギア及び前記エンジン始動ギアを介して前記モータ部の回転力によりエンジンを始動するエンジン始動装置において、
前記ピニオンギア部は、前記出力回転軸にスプライン結合され前記押し出し機構により前記エンジン始動ギアの方向へ移動すると共に前記出力回転軸の回転に伴って回転する回転部材と、この回転部材に前記エンジン始動ギアの方向へ移動可能に嵌合され前記ピニオンギア部が前記押し出し機構により前記噛み合い位置の方へ移動させられると前記回転部材と共に移動して前記エンジン始動ギアと噛み合い前記出力回転軸の回転に伴って前記回転部材と共に回転するピニオンギアと、このピニオンギアを前記エンジン始動ギアの方向へ押圧付勢する弾性部材と、この弾性部材の押圧付勢による前記ピニオンギアのエンジン始動ギアの方向への移動を制限するストッパ部と、前記回転部材の外周側と前記ピニオンギアの内周側とに跨って構成され前記ピニオンギアの前記エンジン始動ギアの方向と反対の方向への移動を規制する移動規制部とを有している
ものである。
更にまた、この発明に係るエンジン始動装置は、モータ部、このモータ部により駆動される出力回転軸の回転に伴って回転するピニオンギア部、及び前記ピニオンギア部をそのピニオンギアとエンジン始動ギアとの噛み合い位置の方へ移動させる押し出し機構、前記モータ部及び前記押し出し機構を支持するブラケット本体部とこのブラケット本体部から前記モータ部と反対側に延在し前記出力回転軸の前記モータ部と反対側の先端部を回転自在に支承するノーズ部とを備えエンジン側に取り付けられるブラケットを備え、互いに噛み合った前記ピニオンギア及び前記エンジン始動ギアを介して前記モータ部の回転力によりエンジンを始動するエンジン始動装置において、
前記ピニオンギア部は、前記出力回転軸にスプライン結合され前記押し出し機構により前記エンジン始動ギアの方向へ移動すると共に前記出力回転軸の回転に伴って回転する回転部材と、この回転部材に前記エンジン始動ギアの方向へ移動可能に嵌合され前記ピニオンギア部が前記押し出し機構により前記噛み合い位置の方へ移動させられると前記回転部材と共に移動して前記エンジン始動ギアと噛み合い前記出力回転軸の回転に伴って前記回転部材と共に回転するピニオンギアと、このピニオンギアを前記エンジン始動ギアの方向へ押圧付勢する弾性部材とを有し、
前記出力回転軸には、前記回転部材の前記エンジン始動ギアの方向への移動を規制する第1のストッパ部が設けられ、
前記回転部材には、前期弾性部材の押圧付勢による前記ピニオンギアのエンジン始動ギアの方向への移動を制限する第2のストッパ部及び前記回転部材の外周側と前記ピニオンギアの内周側とに跨って構成され前記ピニオンギアの前記エンジン始動ギアの方向と反対の方向への移動を規制する移動規制部が設けられ、
前記第1のストッパ部は、前記第2のストッパ部よりも前記エンジン始動ギアと反対側に位置している
ものである。
また、この発明によれば、前記ピニオンギア部は、前記出力回転軸にスプライン結合され前記押し出し機構により前記エンジン始動ギアの方向へ移動すると共に前記出力回転軸の回転に伴って回転する回転部材と、この回転部材に前記エンジン始動ギアの方向へ移動可能に嵌合され前記ピニオンギア部が前記押し出し機構により前記噛み合い位置の方へ移動させられると前記回転部材と共に移動して前記エンジン始動ギアと噛み合い前記出力回転軸の回転に伴って前記回転部材と共に回転するピニオンギアと、このピニオンギアを前記エンジン始動ギアの方向へ押圧付勢する弾性部材と、この弾性部材の押圧付勢による前記ピニオンギアのエンジン始動ギアの方向への移動を制限するストッパ部と、前記回転部材の外周側と前記ピニオンギアの内周側とに跨って構成され前記ピニオンギアの前記エンジン始動ギアの方向と反対の方向への移動を規制する移動規制部とを有しているので、エンジン始動装置内の回転部材の外周にピニオンの第2ストッパ部と反対側への軸方向移動を規制する第3のストッパ部(特許文献1の図1における符号27、特許文献2の図1における符号42)の加工をする必要が無くなることから、回転部材の軸長を短くし、ひいてはエンジン始動装置の全長を短くすることができ、しかも加工の低コスト化、生産性向上ができる。
さらに、エンジン始動装置の全長を短くすることができることから、エンジン始動装置の取り付けにおいて、エンジン側のレイアウトの成立性を向上させることができる。
以下この発明の実施の形態1を図1~図3によって説明する。図1はエンジン始動装置の一例を示す断面図、図2は機構部の一例を示す断面図、図3は第1のストッパ部の一例の構造を示すと共に移動回転部材の組立を説明するため及び第1のストッパ部の機能を説明するための図である。
次いで、スラストスプライン14のスプライン部14aを噛合い部2aのギア諸元に対して矢印Bで示すように1歯分周方向に回転させる(図3(b)参照)。
次いで、スラストスプライン14のスプライン部14aをフロント方向に移動させ、リヤ方向への移動を規制するトメワ(止め輪)22を取り付ける。この時、トメワ22の位置は、スラストスプライン14のスプライン部14aと噛合い部2aが軸方向に対してラップするように設計される(図3(c)参照)。
このような構造にすることで、比較的容易に組立てることができる。
また、前記組付け完了状態である図3(c)の状態において、押し出し機構4によって、移動回転部材5、つまりピニオンギア部、つまり回転部材19がピニオンギア17とエンジン始動ギア3との噛み合い位置の方へ軸方向移動させられると、スラストスプライン14のスプライン部14aが矢印C方向に、一点鎖線の位置まで移動して第1のストッパ部2bに当接し前記噛み合い位置の方への前記移動回転部材5、つまりピニオンギア部、つまり回転部材19の軸方向移動が、第1のストッパ部2bによって規制される。
移動回転部材5内側、つまり回転部材19の内側、に第1のストッパ部2bを設けることで、従来のブラケットがブラケットノーズ部を有しブラケットノーズ部の先端部で出力軸の先端部を支承するタイプの場合における出力回転軸8先端の第1のストッパ部を廃止することができるので、ピニオン17先端からエンジン始動装置1の先端までの軸長アップを軽減できると同時に、エンジン始動装置1内部にて移動回転部材5のスプライン部14aと第1ストッパ部2bとの衝突音が発生する為、音低減にも効果が期待できる。
以下この発明の実施の形態2を図4によって説明する。図4は移動規制部の一例を示す断面図である。
回転部材19のフロント側外周部はセレーション形状が形成され、内径側に同様にセレーション形状が形成されたピニオン17と嵌合することで、回転部材19からのトルクを前記ピニオン17に伝える。
前記ピニオンギア部(17,17a,17b,18,19等で構成されている)は、前記出力回転軸8にスプライン結合され前記押し出し機構4により前記エンジン始動ギア3の方向へ移動すると共に前記出力回転軸8の回転に伴って回転する回転部材19と、この回転部材19に前記エンジン始動ギア3の方向へ移動可能に嵌合され前記ピニオンギア部(17,17a,17b,18,19等で構成されている)が前記押し出し機構4により前記噛み合い位置の方へ移動させられると前記回転部材19と共に移動して前記エンジン始動ギア3と噛み合い前記出力回転軸8の回転に伴って前記回転部材19と共に回転するピニオンギア17と、このピニオンギア17を前記エンジン始動ギア3の方向へ押圧付勢する弾性部材16とを有し、
前記出力回転軸8には、前記回転部材19の前記エンジン始動ギア3の方向への移動を規制する第1のストッパ部2bが設けられ、
前記回転部材19には、前記弾性部材16の押圧付勢による前記ピニオンギア17a,17bのエンジン始動ギア3の方向への移動を制限する第2のストッパ部18が設けられ、
前記第1のストッパ部2bは、前記第2のストッパ部18よりも前記エンジン始動ギア3と反対側に位置している。
前記第1のストッパ部2bは、前記出力回転軸8側のスプライン部に形成され、前記回転部材19側のスプライン部が、前記第1のストッパ部2bに当接することで前記回転部材19の前記エンジン始動ギア3の方向への移動が規制される。
前記ピニオンギア部(17,17a,17b,18,19等で構成されている)は、前記出力回転軸8にスプライン結合され前記押し出し機構4により前記エンジン始動ギア3の方向へ移動すると共に前記出力回転軸8の回転に伴って回転する回転部材19と、この回転部材19に前記エンジン始動ギア3の方向へ移動可能に嵌合され前記ピニオンギア部(17,17a,17b,18,19等で構成されている)が前記押し出し機構4により前記噛み合い位置の方へ移動させられると前記回転部材19と共に移動して前記エンジン始動ギア3と噛み合い前記出力回転軸8の回転に伴って前記回転部材19と共に回転するピニオンギア17a,17bと、このピニオンギア17a,17bを前記エンジン始動ギア3の方向へ押圧付勢する弾性部材16と、この弾性部材16の押圧付勢による前記ピニオンギア17a,17bのエンジン始動ギア3の方向への移動を制限するストッパ部と、前記回転部材19の外周側と前記ピニオンギア17a,17bの内周側とに跨って構成され前記ピニオンギア17a,17bの前記エンジン始動ギア3の方向と反対の方向への移動を規制する移動規制部20とを有している。
前記回転部材19の外周側に回転部材側移動規制当接面20aが形成され、
前記ピニオンギア17a,17bの内周側にピニオン側移動規制当接面20bが形成され、
前記ピニオンギア部(17,17a,17b,18,19等で構成されている)が前記押し出し機構4により前記噛み合い位置の方へ移動させられることによって前記ピニオンギア17a,17bが前記エンジン始動ギア3に当接して前記エンジン始動ギア3の方向と反対の方向へ前記ピニオンギア17a,17bが弾性部材16の押圧付勢力に抗して移動すると、前記ピニオンギア17a,17bの内周側の前記ピニオン側移動規制当接面20bが前記回転部材19の外周側の前記回転部材側移動規制当接面20aに当接し、前記ピニオンギア17a,17bの前記エンジン始動ギア3の方向と反対の方向への移動量が所定の移動量に規制される。
前記ストッパ部が前記ピニオンギア17a,17bの前記エンジン始動ギア3の側に位置し、
前記移動規制部20が前記ピニオンギア17a,17bの前記エンジン始動ギア3の側と反対の側に位置している。
前記ピニオンギア17a,17bが、前記エンジン始動ギア3の側の第1のピニオンギア部17aと、この第1のピニオンギア部17aと隣接し前記エンジン始動ギア3の側と反対側の第2のピニオンギア部17bとで構成され、
前記ピニオンギア部(17,17a,17b,18,19等で構成されている)が前記押し出し機構4により前記噛み合い位置の方へ移動させられることによって、最初に前記第1のピニオンギア部17aが前記エンジン始動ギア3と噛み合い、次いで前記第2のピニオンギア部17bが前記エンジン始動ギア3と噛み合う。
前記第1のピニオンギア17aの前記エンジン始動ギア3の方向の厚さが、前記第2のピニオンギア17bの前記エンジン始動ギア3の方向の厚さより薄い。
前記第1のピニオンギア17aは前記エンジン始動ギア3との回転同期をとる機能を有し、
前記第2のピニオンギア17bは前記エンジン始動ギア3との噛み合いにより前記第2のピニオンギア17bの回転力を前記エンジン始動ギア3に伝達する機能を有している。
前記ピニオンギア部(17,17a,17b,18,19等で構成されている)は、前記出力回転軸8にスプライン結合され前記押し出し機構4により前記エンジン始動ギア3の方向へ移動すると共に前記出力回転軸8の回転に伴って回転する回転部材19と、この回転部材19に前記エンジン始動ギア3の方向へ移動可能に嵌合され前記ピニオンギア部(17,17a,17b,18,19等で構成されている)が前記押し出し機構4により前記噛み合い位置の方へ移動させられると前記回転部材19と共に移動して前記エンジン始動ギア3と噛み合い前記出力回転軸8の回転に伴って前記回転部材19と共に回転するピニオンギア17a,17bと、このピニオンギア17a,17bを前記エンジン始動ギア3の方向へ押圧付勢する弾性部材16とを有し、
前記出力回転軸8には、前記回転部材19の前記エンジン始動ギア3の方向への移動を規制する第1のストッパ部2bが設けられ、
前記回転部材19には、前期弾性部材16の押圧付勢による前記ピニオンギア17a,17bのエンジン始動ギア3の方向への移動を制限する第2のストッパ部18及び前記回転部材19の外周側と前記ピニオンギア17a,17bの内周側とに跨って構成され前記ピニオンギア17a,17bの前記エンジン始動ギア3の方向と反対の方向への移動を規制する移動規制部20が設けられ、
前記第1のストッパ部2bは、前記第2のストッパ部18よりも前記エンジン始動ギア3と反対側に位置している。
前記回転部材19の外周側に回転部材側移動規制当接面20aが形成され、
前記ピニオンギア17a,17bの内周側にピニオン側移動規制当接面20bが形成され、
前記ピニオンギア部(17,17a,17b,18,19等で構成されている)が前記押し出し機構4により前記噛み合い位置の方へ移動させられることによって前記ピニオンギア17a,17bが前記エンジン始動ギア3に当接して前記エンジン始動ギア3の方向と反対の方向へ前記ピニオンギア17a,17bが弾性部材16の押圧付勢力に抗して移動すると、前記ピニオンギア17a,17bの内周側の前記ピニオン側移動規制当接面20bが前記回転部材19の外周側の前記回転部材側移動規制当接面20aに当接し、前記ピニオンギア17a,17bの前記エンジン始動ギア3の方向と反対の方向への移動量が所定の移動量に規制される。
前記ストッパ部が前記ピニオンギア17a,17bの前記エンジン始動ギア3の側に位置し、
前記移動規制部20が前記ピニオンギア17a,17bの前記エンジン始動ギア3の側と反対の側に位置している。
前記ピニオンギア17a,17bが、前記エンジン始動ギア3の側の第1のピニオンギア部17aと、この第1のピニオンギア部17aと隣接し前記エンジン始動ギア3の側と反対側の第2のピニオンギア部17bとで構成され、
前記ピニオンギア部(17,17a,17b,18,19等で構成されている)が前記押し出し機構4により前記噛み合い位置の方へ移動させられることによって、最初に前記第1のピニオンギア部17aが前記エンジン始動ギア3と噛み合い、次いで前記第2のピニオンギア部17bが前記エンジン始動ギア3と噛み合う。
前記第1のピニオンギア17aの前記エンジン始動ギア3の方向の厚さが、前記第2のピニオンギア17bの前記エンジン始動ギア3の方向の厚さより薄い。
前記第1のピニオンギア17aは前記エンジン始動ギア3との回転同期をとる機能を有し、
前記第2のピニオンギア17bは前記エンジン始動ギア3との噛み合いにより前記第2のピニオンギア17bの回転力を前記エンジン始動ギア3に伝達する機能を有している。
また、移動回転部材5に備えられているバネなどの弾性部材16は、回転力をピニオン17に伝える円筒部材外周に取り付けられ、エンジン始動装置の押し出し機構4により移動回転部材5のピニオン17がエンジンのリングギアギア3方向へ飛び出した際、両者が噛合わずに端面接触をした場合、弾性部材16を押し縮めることで、移動回転部材5がピニオンと相対的に前方に移動し、弾性部材16が全圧となる状態を避けるためにピニオン17の軸方向の移動を規制するストッパ部(図6の符号21)を円筒部材19等に構成しているのを廃止し、移動回転部材の一部を構成する、ピニオン17に回転力を伝える円筒部材19外周に構成されたセレーションに、ストッパ10aとしての機能を付加させることにより軸長アップを抑制する。
Claims (14)
- モータ部、このモータ部により駆動される出力回転軸の回転に伴って回転するピニオンギア部、前記ピニオンギア部をそのピニオンギアとエンジン始動ギアとの噛み合い位置の方へ移動させる押し出し機構、及び前記モータ部及び前記押し出し機構を支持するブラケット本体部とこのブラケット本体部から前記モータ部と反対側に延在し前記出力回転軸の前記モータ部と反対側の先端部を回転自在に支承するノーズ部とを備えエンジン側に取り付けられるブラケットを備え、互いに噛み合った前記ピニオンギア及び前記エンジン始動ギアを介して前記モータ部の回転力によりエンジンを始動するエンジン始動装置において、
前記ピニオンギア部は、前記出力回転軸にスプライン結合され前記押し出し機構により前記エンジン始動ギアの方向へ移動すると共に前記出力回転軸の回転に伴って回転する回転部材と、この回転部材に前記エンジン始動ギアの方向へ移動可能に嵌合され前記ピニオンギア部が前記押し出し機構により前記噛み合い位置の方へ移動させられると前記回転部材と共に移動して前記エンジン始動ギアと噛み合い前記出力回転軸の回転に伴って前記回転部材と共に回転するピニオンギアと、このピニオンギアを前記エンジン始動ギアの方向へ押圧付勢する弾性部材とを有し、
前記出力回転軸には、前記回転部材の前記エンジン始動ギアの方向への移動を規制する第1のストッパ部が設けられ、
前記回転部材には、前記弾性部材の押圧付勢による前記ピニオンギアのエンジン始動ギアの方向への移動を制限する第2のストッパ部が設けられ、
前記第1のストッパ部は、前記第2のストッパ部よりも前記エンジン始動ギアと反対側に位置している
ことを特徴とするエンジン始動装置。 - 請求項1に記載のエンジン始動装置において、
前記第1のストッパ部は、前記出力回転軸側のスプライン部に形成され、前記回転部材側のスプライン部が、前記第1のストッパ部に当接することで前記回転部材の前記エンジン始動ギアの方向への移動が規制される
ことを特徴とするエンジン始動装置。 - モータ部、このモータ部により駆動される出力回転軸の回転に伴って回転するピニオンギア部、及び前記ピニオンギア部をそのピニオンギアとエンジン始動ギアとの噛み合い位置の方へ移動させる押し出し機構を備え、互いに噛み合った前記ピニオンギア及び前記エンジン始動ギアを介して前記モータ部の回転力によりエンジンを始動するエンジン始動装置において、
前記ピニオンギア部は、前記出力回転軸にスプライン結合され前記押し出し機構により前記エンジン始動ギアの方向へ移動すると共に前記出力回転軸の回転に伴って回転する回転部材と、この回転部材に前記エンジン始動ギアの方向へ移動可能に嵌合され前記ピニオンギア部が前記押し出し機構により前記噛み合い位置の方へ移動させられると前記回転部材と共に移動して前記エンジン始動ギアと噛み合い前記出力回転軸の回転に伴って前記回転部材と共に回転するピニオンギアと、このピニオンギアを前記エンジン始動ギアの方向へ押圧付勢する弾性部材と、この弾性部材の押圧付勢による前記ピニオンギアのエンジン始動ギアの方向への移動を制限するストッパ部と、前記回転部材の外周側と前記ピニオンギアの内周側とに跨って構成され前記ピニオンギアの前記エンジン始動ギアの方向と反対の方向への移動を規制する移動規制部とを有している
ことを特徴とするエンジン始動装置。 - 請求項3に記載のエンジン始動装置において、
前記回転部材の外周側に回転部材側移動規制当接面が形成され、
前記ピニオンギアの内周側にピニオン側移動規制当接面が形成され、
前記ピニオンギア部が前記押し出し機構により前記噛み合い位置の方へ移動させられることによって前記ピニオンギアが前記エンジン始動ギアに当接して前記エンジン始動ギアの方向と反対の方向へ前記ピニオンギアが弾性部材の押圧付勢力に抗して移動すると、前記ピニオンギアの内周側の前記ピニオン側移動規制当接面が前記回転部材の外周側の前記回転部材側移動規制当接面に当接し、前記ピニオンギアの前記エンジン始動ギアの方向と反対の方向への移動量が所定の移動量に規制される
ことを特徴とするエンジン始動装置。 - 請求項3または請求項4に記載のエンジン始動装置において、
前記ストッパ部が前記ピニオンギアの前記エンジン始動ギアの側に位置し、
前記移動規制部が前記ピニオンギアの前記エンジン始動ギアの側と反対の側に位置している
ことを特徴とするエンジン始動装置。 - 請求項3~請求項5の何れか一に記載のエンジン始動装置において、
前記ピニオンギアが、前記エンジン始動ギアの側の第1のピニオンギア部と、この第1のピニオンギア部と隣接し前記エンジン始動ギアの側と反対側の第2のピニオンギア部とで構成され、
前記ピニオンギア部が前記押し出し機構により前記噛み合い位置の方へ移動させられることによって、最初に前記第1のピニオンギア部が前記エンジン始動ギアと噛み合い、次いで前記第2のピニオンギア部が前記エンジン始動ギアと噛み合う
ことを特徴とするエンジン始動装置。 - 請求項6に記載のエンジン始動装置において、
前記第1のピニオンギアの前記エンジン始動ギアの方向の厚さが、前記第2のピニオンギアの前記エンジン始動ギアの方向の厚さより薄い
ことを特徴とするエンジン始動装置。 - 請求項6または請求項7に記載のエンジン始動装置において、
前記第1のピニオンギアは前記エンジン始動ギアとの回転同期をとる機能を有し、
前記第2のピニオンギアは前記エンジン始動ギアとの噛み合いにより前記第2のピニオンギアの回転力を前記エンジン始動ギアに伝達する機能を有している
ことを特徴とするエンジン始動装置。 - モータ部、このモータ部により駆動される出力回転軸の回転に伴って回転するピニオンギア部、及び前記ピニオンギア部をそのピニオンギアとエンジン始動ギアとの噛み合い位置の方へ移動させる押し出し機構、前記モータ部及び前記押し出し機構を支持するブラケット本体部とこのブラケット本体部から前記モータ部と反対側に延在し前記出力回転軸の前記モータ部と反対側の先端部を回転自在に支承するノーズ部とを備えエンジン側に取り付けられるブラケットを備え、互いに噛み合った前記ピニオンギア及び前記エンジン始動ギアを介して前記モータ部の回転力によりエンジンを始動するエンジン始動装置において、
前記ピニオンギア部は、前記出力回転軸にスプライン結合され前記押し出し機構により前記エンジン始動ギアの方向へ移動すると共に前記出力回転軸の回転に伴って回転する回転部材と、この回転部材に前記エンジン始動ギアの方向へ移動可能に嵌合され前記ピニオンギア部が前記押し出し機構により前記噛み合い位置の方へ移動させられると前記回転部材と共に移動して前記エンジン始動ギアと噛み合い前記出力回転軸の回転に伴って前記回転部材と共に回転するピニオンギアと、このピニオンギアを前記エンジン始動ギアの方向へ押圧付勢する弾性部材とを有し、
前記出力回転軸には、前記回転部材の前記エンジン始動ギアの方向への移動を規制する第1のストッパ部が設けられ、
前記回転部材には、前期弾性部材の押圧付勢による前記ピニオンギアのエンジン始動ギアの方向への移動を制限する第2のストッパ部及び前記回転部材の外周側と前記ピニオンギアの内周側とに跨って構成され前記ピニオンギアの前記エンジン始動ギアの方向と反対の方向への移動を規制する移動規制部が設けられ、
前記第1のストッパ部は、前記第2のストッパ部よりも前記エンジン始動ギアと反対側に位置している
ことを特徴とするエンジン始動装置。 - 請求項9に記載のエンジン始動装置において、
前記回転部材の外周側に回転部材側移動規制当接面が形成され、
前記ピニオンギアの内周側にピニオン側移動規制当接面が形成され、
前記ピニオンギア部が前記押し出し機構により前記噛み合い位置の方へ移動させられることによって前記ピニオンギアが前記エンジン始動ギアに当接して前記エンジン始動ギアの方向と反対の方向へ前記ピニオンギアが弾性部材の押圧付勢力に抗して移動すると、前記ピニオンギアの内周側の前記ピニオン側移動規制当接面が前記回転部材の外周側の前記回転部材側移動規制当接面に当接し、前記ピニオンギアの前記エンジン始動ギアの方向と反対の方向への移動量が所定の移動量に規制される
ことを特徴とするエンジン始動装置。 - 請求項9または請求項10に記載のエンジン始動装置において、
前記ストッパ部が前記ピニオンギアの前記エンジン始動ギアの側に位置し、
前記移動規制部が前記ピニオンギアの前記エンジン始動ギアの側と反対の側に位置している
ことを特徴とするエンジン始動装置。 - 請求項9~請求項11の何れか一に記載のエンジン始動装置において、
前記ピニオンギアが、前記エンジン始動ギアの側の第1のピニオンギア部と、この第1のピニオンギア部と隣接し前記エンジン始動ギアの側と反対側の第2のピニオンギア部とで構成され、
前記ピニオンギア部が前記押し出し機構により前記噛み合い位置の方へ移動させられることによって、最初に前記第1のピニオンギア部が前記エンジン始動ギアと噛み合い、次いで前記第2のピニオンギア部が前記エンジン始動ギアと噛み合う
ことを特徴とするエンジン始動装置。 - 請求項12に記載のエンジン始動装置において、
前記第1のピニオンギアの前記エンジン始動ギアの方向の厚さが、前記第2のピニオンギアの前記エンジン始動ギアの方向の厚さより薄い
ことを特徴とするエンジン始動装置。 - 請求項12または請求項13に記載のエンジン始動装置において、
前記第1のピニオンギアは前記エンジン始動ギアとの回転同期をとる機能を有し、
前記第2のピニオンギアは前記エンジン始動ギアとの噛み合いにより前記第2のピニオンギアの回転力を前記エンジン始動ギアに伝達する機能を有している
ことを特徴とするエンジン始動装置。
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CN103147896A (zh) * | 2013-03-07 | 2013-06-12 | 无锡市闽仙汽车电器有限公司 | 悬臂式起动机驱动齿轮防脱结构 |
JP2016108975A (ja) * | 2014-12-03 | 2016-06-20 | 三菱電機株式会社 | エンジン始動装置 |
WO2017216889A1 (ja) * | 2016-06-15 | 2017-12-21 | 三菱電機株式会社 | 内燃機関の始動装置 |
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CN103459830B (zh) | 2011-03-31 | 2016-03-16 | 三菱电机株式会社 | 发动机启动装置 |
JP5965268B2 (ja) * | 2011-11-29 | 2016-08-03 | 株式会社ミツバ | スタータ |
FR3027967B1 (fr) * | 2014-10-29 | 2018-03-02 | Valeo Equipements Electriques Moteur | Demarreur de moteur thermique de vehicule automobile muni d'une butee perfectionnee |
FR3038157B1 (fr) * | 2015-06-26 | 2018-08-24 | Valeo Equipements Electriques Moteur | Demarreur de moteur thermique de vehicule automobile muni d'un embrayage a configuration amelioree |
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2011
- 2011-03-31 JP JP2013506982A patent/JP5507005B2/ja active Active
- 2011-03-31 WO PCT/JP2011/058210 patent/WO2012131974A1/ja active Application Filing
- 2011-03-31 KR KR1020137026984A patent/KR101501869B1/ko active IP Right Grant
- 2011-03-31 EP EP11862590.4A patent/EP2693043B1/en not_active Not-in-force
- 2011-03-31 US US13/977,858 patent/US9518550B2/en active Active
- 2011-03-31 CN CN201180069760.2A patent/CN103459829B/zh active Active
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- 2015-01-13 US US14/595,829 patent/US10184443B2/en not_active Expired - Fee Related
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JP2000274336A (ja) * | 1999-03-25 | 2000-10-03 | Mitsubishi Motors Corp | 内燃機関の始動装置 |
JP2002115636A (ja) * | 2000-10-11 | 2002-04-19 | Denso Corp | スタータのピニオンストッパ装置 |
JP2006161590A (ja) | 2004-12-03 | 2006-06-22 | Denso Corp | スタータ |
JP2009138656A (ja) | 2007-12-07 | 2009-06-25 | Denso Corp | スタータおよびエンジン始動装置 |
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CN103147896A (zh) * | 2013-03-07 | 2013-06-12 | 无锡市闽仙汽车电器有限公司 | 悬臂式起动机驱动齿轮防脱结构 |
JP2016108975A (ja) * | 2014-12-03 | 2016-06-20 | 三菱電機株式会社 | エンジン始動装置 |
WO2017216889A1 (ja) * | 2016-06-15 | 2017-12-21 | 三菱電機株式会社 | 内燃機関の始動装置 |
JPWO2017216889A1 (ja) * | 2016-06-15 | 2018-09-06 | 三菱電機株式会社 | 内燃機関の始動装置 |
Also Published As
Publication number | Publication date |
---|---|
US20150159617A1 (en) | 2015-06-11 |
CN103459829B (zh) | 2016-01-27 |
US10184443B2 (en) | 2019-01-22 |
US9518550B2 (en) | 2016-12-13 |
KR101501869B1 (ko) | 2015-03-18 |
KR20140002756A (ko) | 2014-01-08 |
US20130276579A1 (en) | 2013-10-24 |
CN103459829A (zh) | 2013-12-18 |
EP2693043B1 (en) | 2017-11-29 |
EP2693043A1 (en) | 2014-02-05 |
EP2693043A4 (en) | 2015-12-02 |
JP5507005B2 (ja) | 2014-05-28 |
JPWO2012131974A1 (ja) | 2014-07-24 |
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