• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a reversible motor-operated wiper mechanism including a rotary gearwheel through which drive is imparted to a wiper from the reversible motor, a device is provided for operating a limit switch for stopping the motor at a parked position of the wiper. The device has an annulus and integral cam form and neck disposed under the gear wheel and rotatable relative thereto. An arcuate plate is rivetted to the underside of the gearwheel and includes a downwardly projecting plate portion. During forward rotation of the gearwheel, an abutment surface of the plate portion engages the neck to drive the annulus and cam form. In this direction, a spring urges the cam form upwardly so that a plunger of the limit switch does not lie in the path of movement of the cam form. In the reverse direction of rotation of the gear wheel, a ramp surface on the plate portion urges the cam form downwardly so that the limit switch is operated.
    公开号:SU880246A3
    申请号:SU792707356
    申请日:1979-01-05
    公开日:1981-11-07
    发明作者:Лоувелл Худ Норман
    申请人:Лукас Индастриз Лимитед (Фирма)；
    IPC主号:
    专利说明:

    one
    This invention relates to a vehicle, in particular to a wiper drive mechanism of a car.
    A known mechanism for driving a glass-j car cleaner, comprising a reversible electric motor with a rotor connected to a rotary plate and a crank mounted on its shaft, and a transfer member, and a sub-jQ valve for interacting with the pin of the limit switch: LI motor.
    In this design, the rotor has an arcuate groove, and its rotation on the plate associated with the spring-loaded cam is connected at one end to the arcuate lever, the other end of which is mounted in the said groove.
    When working wiper, i.e. 20 when the rotor rotates with the arcuate lever in the forward direction, the cam of its drive mechanism does not interact with the pin of the limit switch, and when changing the direction of rotation 25 of the rotor, the indicated cam due to changes in the positions of the arcuate lever and the rotary plate interacts with the pin of the limit switch, which is in endndm eventually leads to braking
    electric motor. However, if the reversal is provided by the operator in a situation other than when the cam is in the position prior to its contact with the switch pin, while rotating the rotor in the forward direction, an undesirable trace remains on the cleaned surface of the windscreen it will not have time to stop the complete cleaning of the glass, i.e. will not pass its full path.
    The purpose of the invention is to improve the installation accuracy, brushes in the park position and increase reliability.
    This goal is achieved in that the shaft is provided with a friction element, and the transfer member includes a transfer member connected by means of a cam link, mounted on the friction element, wherein the rotary plate has a pair of stops for their alternate interaction with the gear mechanism when the direction changes. rotor rotation and beveled face to grip the cam.
    In addition, the friction element can be made in the form of a sleeve with a flange, and the transfer element in the form of a ring, the surface of which is associated with the surface of the flange.
    In addition, the mating surfaces of the flange and the ring can be made wavy, the beveled face of the rotary plate can be connected with a flat section with one of its stops.
    Figure 1 shows the drive mechanism of a car window wiper, longitudinal section j in figure 2 is a partial view of the screen wiper drive mechanism, top view, fig. 3 is a general view of the rotary plate of the screen wiper drive mechanism j in figure 4 is a partial view of the screen wiper drive mechanism the interaction of the cam with the pin of the limit switch in figure 5 the limit switch.
    The windshield wiper drive mechanism of the automobile contains a reversible electric motor (not shown) with a rotor 2 mounted on shaft 1 connected to the turntable 3 and a crank (not shown). The drive mechanism also includes a transfer member consisting of a transfer member, made, for example, in the form of a ring 4, connected via jumper 5 to a spring-loaded b cam 7. In this case, the ring 4 is mounted on a friction element made in the form of a sleeve 8 with the flange 9. The sleeve 8 is mounted on the boss 10, made in one piece with the housing 11. In this case, the sleeve 8 has on its inner surface a flat (figure 2), mated with a counter piece of the outer surface of the boss 10 - to limit the rotation of the sleeve 8 relative to the boss 10. The spring b is mounted on the sleeve 8 and rests with the lower turn in the housing 11, and the upper one - into the ring 4, pressing the latter against the flange 9. The mating surfaces of the flange 9 and the ring 4 are made wavy to increase the frictional resistance to rotation of the ring 4 relative to flange 9.
    The rotary plate 3 is arcuate and rigidly fixed on the lower surface of the rotor 2. Plate 3 has a protruding arcuate portion 12 (see fig. 2, 3), at one end of part 12 there is an emphasis 13. Plate 3 also has a beveled edge 14, transition a flat section 15, which is associated with an additional stop 16, the surface of which is perpendicular to the surface of the flat section 15 (see fig. 3). In addition, the part 12 of the plate 3 is located in the zone passing through the jumper 5 connecting the cam 7 with the ring 4.
    The reversible electric motor is equipped with a limit switch 17 with a pin 18 passing through an opening 19 made in the housing 11 (see Fig. 1.4. The limit switch has a movable contact holder 20 with contacts 21,22,23 and 24.
    During operation of the wiper, when the rotor 2 rotates in the forward direction F (see Fig. 2), the surface of the abutment 13 on the part 12 of the plate 3 is in contact with the jumper 5 k, therefore, ensures the rotation of the ring 4 and the cam 7 with it In this case, the spring 6 pushes the cam 7 into a position in which it moves along a trajectory passing the pin 18 above the top point (i.e. the pin 18 of the limit switch 17 is out of the path of the cam 7. When the rotation direction of the rotor 2 is reversed (i.e. the direction of rotation in the arrow R n 2) the forced movement of the cam 7 and the ring 4 is stopped, and their relative movement takes place between the part 12 of the plate 3 and the cam 7. The cam 7 remains stationary due to the presence of frictional resistance to movement provided by the surfaces of the ring mating to each other 4 and the flange 9. When the rotor 2 continues to rotate in the opposite direction R, the beveled face 14 of the plate 3 first comes into contact with the bridge 5 of the transfer member, and then its flat portion 15. As a result, the elements jumper you squeeze plate 5 and, consequently, the cam 7 is moved downwardly to the position shown in Figure 4. In this case, the cam 7 moves down in the direction of the axis of rotation of the rotor 2 against the action of the elastic forces of the spring 6. The movement of the part 12 of the plate 3 relative to the cam 7. takes place until the bridge 5 comes into contact with the surface of the additional stop 16. The cam 7 this moment is pressed to the position where pin 18 of limit switch 17 is in the path of movement of cam 7. Continuing rotation of the rotor 2 and, therefore, part 12 of plate 3 causes the ring b and cam 7 to rotate around the axis of rotation of the rotor 2 until cam 7 will not press the pin 18. Pressing the pin 18 causes the action of the movable contact holder 20 of the limit switch 17. At the same time, the first contact pair with contacts 21 and 22 (. (bur.5} of the movable contact holder 1 times, and the second with contacts
    23 and 24 closes. Contacts 22 and
    The 24-contact holder 20 is connected in the power scheme of the reversible electric motor in a known manner so that JTO when the contacts 23 and 24 are closed, the reversible electric motor is dynamically braked.
    The described embodiment of the mechanism provides the ability to actuate the limit switch 17 at a given angular position of the rotor 2 only when the latter rotates in the reverse direction R. At the specified specified angular position of the rotor 2, the wiper blades will be in the initial non-operating end positions, i.e. . in park position.
    The described mechanism is simple to manufacture and ensures reliable and accurate braking of the electric motor at the required angular position of the rotor 2. It also guarantees reliable operation of the limit switch 17 which cannot operate when the rotor 2 rotates in the forward direction
    In addition, the described mechanism allows at least one full crank revolution to be performed before dynamic braking of the electric motor takes place, which ensures that the brushes are precisely set in the park position.
    权利要求:
    Claims (4)
    [1]
    1. A car windshield drive mechanism comprising a reversible electric motor with a rotor mounted on its shaft connected to a rotary plate and crank and a transmission member having a spring-loaded cam for engaging with a pin of an electric motor switch, characterized in that in order to improve accuracy setting the brushes to the park position and increasing reliability, the shaft is provided with a friction element, and the transfer member contains a gear box connected by means of a jumper with a cam A rotary plate has a pair of stops for interacting with the transfer member alternately when changing the direction of rotation of the rotor and a bevelled face for gripping the cam.
    [2]
    2. Pop-1 mechanism, characterized in that the friction element is made in the form of a sleeve with a flange, and the transfer element in the form of a ring, the surface of which is associated with the surface of the flange.
    [3]
    3. The mechanism according to claims 1 and 2, which is based on the fact that the mating surfaces of the flange and the ring are wavy.
    [4]
    4. The mechanism according to claim 1, characterized in that the beveled face of the pivot plate is associated with a flat portion with one of its stops.
    Sources of information taken into account in the examination
    1. US patent N 2491697, kl.318-14, 1949 H prototype).
    类似技术:
    公开号 | 公开日 | 专利标题
    SU880246A3|1981-11-07|Mechanism of drive of windshield wiper of car
    US4494421A|1985-01-22|Windshield wiper driving device
    US2308212A|1943-01-12|Wind screen wiper for motor vehicles
    KR910006805B1|1991-09-02|Transmission mechanism
    US5075519A|1991-12-24|Windshield wiper switch
    SU961552A3|1982-09-23|Vehicle windshield wiper
    US2521301A|1950-09-05|Morrison
    GB1462571A|1977-01-26|Actuating mechanism for imparting oscillatory motion to anoutput shaft
    GB461255A|1937-02-15|Improvements relating to windscreen wipers for motor vehicles
    US3717048A|1973-02-20|Depressed park wiper mechanism
    EP0435831B1|1994-08-24|A device for operating a motor-vehicle windscreen-wiper arm
    GB2219491A|1989-12-13|Crank mechanism for windscreen wiper assembly
    ES8702255A1|1986-12-16|Crank mechanism
    JPH0692203A|1994-04-05|Wiper for vehicle
    SU1258337A3|1986-09-15|Control lever
    US3389419A|1968-06-25|Windshield wiper
    GB2098467A|1982-11-24|Wiper mechanism
    SU1142685A1|1985-02-28|Electric drive with manual duplicating device
    KR0118539Y1|1998-07-15|An wiper driving device for a vehicle
    DE822336C|1951-11-26|Stop light with flashing distant signal for motor vehicles
    SU1155439A1|1985-05-15|Device for joining sheet parts
    SU912477A1|1982-03-15|Rotary indexing table
    SU530129A1|1976-09-30|Safety clutch with drive circuit breaker
    SU1664760A1|1991-07-23|Rotary table drive
    SU1476452A1|1989-04-30|Positioning device
    同族专利:
    公开号 | 公开日
    JPS5497933A|1979-08-02|
    IT1114309B|1986-01-27|
    DE2900165A1|1979-07-12|
    AU4248078A|1979-07-12|
    FR2413988B1|1984-03-16|
    ZA786983B|1979-11-28|
    IT7947521D0|1979-01-04|
    ES476447A1|1979-11-16|
    IN150768B|1982-12-11|
    US4224492A|1980-09-23|
    AU524286B2|1982-09-09|
    FR2413988A1|1979-08-03|
    AR217494A1|1980-03-31|
    JPS5858248B2|1983-12-24|
    YU40990B|1986-10-31|
    DE2900165C2|1985-10-17|
    YU1579A|1982-08-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2734159A|1956-02-07|malone|
    US2899510A|1959-08-11|R merriam |
    US2491697A|1946-08-29|1949-12-20|Stewart Warner Corp|Electric windshield wiper motor control system|
    US2587163A|1951-01-13|1952-02-26|Gen Motors Corp|Windshield wiper drive|
    US2725436A|1952-06-27|1955-11-29|Bosch Arma Corp|Windshield wiping apparatus and parking switch therefor|
    US2750550A|1953-03-12|1956-06-12|Redmond Company Inc|Switch construction, and motor control system incorporating the same|
    GB821216A|1957-04-18|1959-10-07|Gen Motors Corp|Improvements in or relating to windscreen wiper actuator mechanisms|
    US2959968A|1957-04-18|1960-11-15|Gen Motors Corp|Windshield wiper actuating mechanism|
    US3242520A|1964-11-10|1966-03-29|Eltra Corp|Windshield wiper mechanism|
    DE1655042A1|1967-05-13|1970-11-05|Rau Swf Autozubehoer|Switching arrangement for a motor for driving windshield wipers on vehicles|
    JPS5043865U|1973-08-21|1975-05-02|
    GB2013817B|1978-01-06|1982-06-03|Lucas Industries Ltd|Vehicle windscreen wiper actuating mechanism|JPS58137260U|1982-03-11|1983-09-14|
    DE3446761C2|1984-12-21|1986-10-30|SWF Auto-Electric GmbH, 7120 Bietigheim-Bissingen|Windshield wiper systems, in particular for motor vehicles|
    JPH0411887Y2|1985-05-24|1992-03-24|
    JPS6219611A|1985-07-18|1987-01-28|Matsushita Electric Ind Co Ltd|Control system for gas water heater|
    JPH0726721Y2|1987-01-30|1995-06-14|株式会社ノーリツ|Proportional control device such as water heater|
    DE102005062778A1|2005-12-28|2007-07-05|Robert Bosch Gmbh|Windscreen wiper device for motor vehicle, has transmission with parking position switch that is arranged between gearwheel and transmission housing, where parking position switch has contact disc or contact layer arranged at gearwheel|
    CN109990024B|2019-05-06|2020-07-10|内蒙古工业大学|Limiting mechanism with angle larger than plus or minus 180 degrees|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB44478|1978-01-06|
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