Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
  • B60S1/00—Cleaning of vehicles
  • B60S1/02—Cleaning windscreens, windows or optical devices
  • B60S1/04—Wipers or the like, e.g. scrapers
  • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
  • B60S1/16—Means for transmitting drive
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
  • F16H55/02—Toothed members; Worms
  • F16H55/17—Toothed wheels
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B60—VEHICLES IN GENERAL
  • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
  • B60S1/00—Cleaning of vehicles
  • B60S1/02—Cleaning windscreens, windows or optical devices
  • B60S1/04—Wipers or the like, e.g. scrapers
  • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
  • B60S1/16—Means for transmitting drive
  • B60S1/166—Means for transmitting drive characterised by the combination of a motor-reduction unit and a mechanism for converting rotary into oscillatory movement
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16H—GEARING
  • F16H21/00—Gearings comprising primarily only links or levers, with or without slides
  • F16H21/10—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane
  • F16H21/40—Gearings comprising primarily only links or levers, with or without slides all movement being in, or parallel to, a single plane for interconverting rotary motion and oscillating motion
• • 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
  • Y10T74/19—Gearing
  • Y10T74/19535—Follow-up mechanism

Definitions

• the present invention relates to a toothed wheel, and more specifically to the production of means for differentiating the toothed wheels.
• gears are usually made from a molded wheel traversed by a wheel shaft, having a serration on their rim and having on one of their face a recess into which a cam is inserted.
• These wheels are typically connected by a set of moving parts to an output drive shaft, for example a drive shaft of a wiper arm in the case of wiper motors.
• the distance between the axis of the rotation of the toothed wheel and the axis of the crankpin, fixed on one of the faces of the gear wheel, commonly called “spacing”, makes it possible to determine the output rotation angle of the drive shaft connected for example to a wiper arm.
• a first method of quantification is to measure manually the center distance using a ruler or a measuring device, which however does not allow to have a sufficiently precise and reliable measurement, because of the margin of measurement. error inherent in manual measurement.
• An alternative solution consists in producing, for example, electronic measuring devices by optical reading of this center distance.
• the wheels and their cam used are different according to the direction of sweeping and the configuration of the motor.
• the motor is said to have a fixed stop type on the right or a fixed stop on the left.
• the present invention proposes to solve the problems related to the prior art using a toothed wheel with easily understandable differentiation means, not requiring a complex molding and inexpensive.
• the present invention relates to a toothed wheel having a central bore defining a central axis of rotation and a secondary bore for fixing a crank pinion, characterized in that it has, on one of its faces, means for determining the the distance between the central axis of the central bore and the pin axis of the secondary bore, the determination means being in the form of coding means made from a plurality of projecting elements provided on the face of the wheel on which is fixed the crankpin.
• the projecting elements are substantially cylindrical and at least one of the projecting elements has a transverse wall forming a diameter of this projecting element.
• a bore is provided in the bottom of at least one of the projecting elements.
• the projecting elements are located on the same circle centered on the central bore.
• the present invention also relates to a method of differentiating a gear wheel according to the preceding characteristics, characterized in that it comprises the step of reading a binary code according to the presence or absence of a wall in the projecting elements as well as the step of determining a characteristic of the gear as a function of the presence or absence of a bore in the bottom of the projecting elements.
• FIG. 1 represents a perspective view of a toothed wheel linked by a crank pin to a connecting rod and having the coding means according to the invention
• Figure 2 shows a lower perspective view of a toothed wheel coupled to a cam
• Figure 3 is a perspective view of a toothed wheel with the encoding means according to the invention.
• FIG. 4 represents an upper view of a toothed wheel with the coding means according to the invention
• FIGS. 5 and 6 are more detailed top views of the coding means of a wheel according to the invention.
• FIG. 1 is a perspective view of a wheel 1 having on its peripheral rim a toothing 2 and in its center an axis of rotation 3.
• crank pin la It is provided on one face of the wheel 1, said fixing face of the crank pin la, a bore (not visible in Figure 1) in which is inserted a crankpin 4, of a type known per se.
• crankpin 4 is itself inserted into the end of a connecting rod 5 whose other end is connected by a second crankpin 6 with two rockers 7, of a type known per se.
• An output shaft 8 guides the rockers 7, the angle of rotation of which is determined in particular by means of the angle of rotation of the wheel 1 and the movement thus transmitted, the toothed end 5a of the connecting rod 5 being suitable for meshing in a toothed end sector 9 of the output shaft 8.
• the attachment face 1c of the crankpin 4 has the coding means 10 according to the invention, the embodiment of which will be explained later.
• FIG. 2 shows a perspective view of the face Ib of the wheel 1 in which a cam 11, of known type, is inserted.
• FIG. 3 represents a perspective view of the wheel 1 with the coding means 10 according to the invention.
• the wheel 1 has a central bore 12 in the form of a sleeve or boss for the central rotation shaft 3 and a secondary bore 13, also in the form of a sleeve or boss, intended for the fixing the crankpin 4 on the wheel 1 and defining the axis of the crankpin 4.
• the distance between the central axis of rotation 3 and the axis of the crankpin 4 is commonly called the "center distance” and makes it possible to determine the angle of rotation of the output shaft 8, for example the scanning angle of the windshield wiper arm in the case of the incorporation of the toothed wheel 1 into a wiper motor.
• the coding means 10 on the so-called fixing face of the crank pin 1a of the wheel 1 are in the form of a plurality of projecting elements (14, 15, 16, 17), advantageously in the form of four elements protrusion (14, 15, 16, 17) substantially cylindrical.
• the projecting elements (14, 15, 16, 17) are located on a same circle of center the central bore 12 of the axis of rotation 3 of the wheel 1 and are interconnected by curved walls 18.
• the secondary bore 13 is also located on the same circle.
• the fixing face 1a of the wheel 1 has a circular inner depression 19 on which the protruding elements (14, 15, 16, 17) and the curved walls 18 abut.
• Walls in the form of parallelepipedal elements 20 are also formed between the periphery of the internal circular digging 19 and the projecting elements (14, 15, 16, 17) circular.
• These parallelepipedal elements 20 are said to be “external” because they lie outside the circle defined by the cylindrical projecting elements (14, 15, 16, 17) and are substantially radial with respect to the central axis of rotation 3 of the wheel. 1, that is to say located on a radius of the wheel 1.
• Walls in the form of projecting parallelepipedal elements 21 are also provided between the central bore 12 and each of the cylindrical projecting elements (14, 15, 16, 17) and between the secondary bore 13 and the intermediate bore 13. central bore 12.
• These parallelepipedal elements 21 are called “internal” because they are located inside the circle defined by the circular projecting elements (14, 15, 16, 17) and are substantially radial with respect to the central axis of rotation 3 of the wheel. 1, that is to say located on a radius of the wheel 1.
• wheels 1 with only one projecting element or with more than four projecting elements.
• each projecting element (14, 15, 16, 17) there is optionally provided a transverse wall 27 and advantageously forming a substantially radial diameter of the projecting element (14, 15, 16, 17). that is located on a radius of the wheel 1, and connecting the so-called “internal” projecting wall 21 to the so-called “outer” projecting wall 20.
• each projection element (14, 15, 16, 17) is affiliated with a binary code, ie 0 or 1, depending on the absence or the presence of the transverse wall 27 in the protruding element (14). , 15, 16, 17).
• the reading direction of the binary codes of the projecting elements is clockwise from: - the lower projecting element 14 connected by a curved wall 18 to the boss of the secondary bore 13 and located to the left of this boss 13 when the user looks at the attachment face of the wheel 1 with the boss of the secondary bore 13 directed towards the user, then the upper projecting element 15 located to the left of the user always with the boss of the secondary bore 13 directed towards the user, then the upper projecting element 16 located to the right of the user with the boss of the secondary bore 13 directed towards the user, and finally the lower projecting element 17 located to the right of the user with the boss of the secondary bore 13 directed towards the user.
• the reading direction of the binary codes of the projecting elements can also be done in a counter-clockwise direction starting from the element in question. lower right projection 17.
• this code can correspond to a determined distance between centers and a determined exit angle.
• a bore 28 made in the upper projecting elements (15, 16) corresponds to the determination of the right or left type motor, the bore 28 being drilled in the bottom of the element.
• the bore 28 is drilled in the bottom of the upper right protruding element 16 when the wheel 1 is intended to be integrated in a right type motor.
• a bore 28 made in the lower projecting elements (14, 17) corresponds to the determination of the fixed stop motor to the right or to the left, the bore 28 being pierced in the bottom of the left lower protruding element 14 when the wheel
• I is intended to be integrated in a motor is of the fixed stop type on the left and the bore 28 is drilled in the bottom of the right lower projection element 17 when the wheel 1 is intended to be integrated in a motor type at a fixed stop on the right.
• the wheel 1 as illustrated in Figure 4 is intended to be integrated in a left type motor and fixed stop right.
• a logo or inscription is added between the two upper projecting elements (15, 16), this logo or inscription to be located horizontally. and at the point when the user reads the coding means (10) clockwise from the lower left protruding element 14 to finish at the lower right protruding element 17.
• gear wheels with coding means that can be machined from the same tool and can be crushed.
• the ground powder obtained after grinding the wheels 1 can be used again, which was not the case according to the prior art during the incorporation of coloring pigments.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Gears, Cams (AREA)
• Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
• Handcart (AREA)
• Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=35466459

Family Applications (1)

Country Status (10)

Families Citing this family (9)

Family Cites Families (5)

• 2005
  • 2005-04-29 FR FR0504396A patent/FR2885198B1/fr not_active Expired - Fee Related
• 2006
  • 2006-04-20 EP EP06742623A patent/EP1874596A1/fr not_active Withdrawn
  • 2006-04-20 US US11/912,928 patent/US20100011892A1/en not_active Abandoned
  • 2006-04-20 MX MX2007013562A patent/MX2007013562A/es unknown
  • 2006-04-20 KR KR1020077026984A patent/KR20080013917A/ko not_active Application Discontinuation
  • 2006-04-20 BR BRPI0610393A patent/BRPI0610393A2/pt not_active IP Right Cessation
  • 2006-04-20 JP JP2008508121A patent/JP2008539372A/ja active Pending
  • 2006-04-20 RU RU2007144183/11A patent/RU2007144183A/ru not_active Application Discontinuation
  • 2006-04-20 CN CNA2006800222373A patent/CN101203409A/zh active Pending
  • 2006-04-20 WO PCT/EP2006/003631 patent/WO2006117084A1/fr active Application Filing

Non-Patent Citations (1)

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