Planetary gear transmission systems or components – Planetary gearing or element
Patent
1992-05-18
1993-12-14
Braun, Leslie A.
Planetary gear transmission systems or components
Planetary gearing or element
74 7E, 74DIG10, 81 5711, 81 5731, 173171, 408124, 475149, 475317, 475345, 475902, F16H 5508, F16H 5706, F16H 128, F16H 3704
Patent
active
052697339
ABSTRACT:
A power tool with a two-part housing has a drive motor with a pinion gear on the motor shaft. A plastic cylindrical ring gear is fixed to the motor in coaxial surrounding relationship with the pinion gear and has attachment lugs which fit between the two parts of the tool housing and are fixedly secured to each. A plastic gear carrier frame is insert molded on a splined end of a metal output shaft and is receivable within the ring gear and has radial slots for respectively receiving pins which respectively rotatably mount three planet gears in meshing engagement with the pinion gear and the ring gear. The carrier frame has a hollow stub shaft portion which receives the pinion gear therethrough, the stub shaft portion having an elastomeric O-ring seated in a circumferential groove therein for press-fitting a ball bearing thereon, the ball bearing being in turn press-fitted in a seat in the ring gear to support the planet gear assembly.
REFERENCES:
patent: 1945361 (1934-01-01), Ball
patent: 2704681 (1955-03-01), Fischer
patent: 2998735 (1961-09-01), Elfes
patent: 3081648 (1963-03-01), Duer
patent: 3655226 (1972-04-01), Cowan
patent: 4406340 (1983-09-01), Gennaux
patent: 4462282 (1984-07-01), Biek
patent: 4485698 (1984-12-01), Adman et al.
patent: 4507978 (1985-04-01), Tanaka et al.
patent: 4517858 (1985-05-01), Schafer
patent: 4597453 (1986-07-01), Kilmer et al.
patent: 4680979 (1987-07-01), Morishita et al.
patent: 4763031 (1988-08-01), Wang
patent: 4838123 (1989-06-01), Matoba
patent: 4848172 (1989-07-01), Morishita et al.
patent: 4899605 (1990-02-01), Tanaka
patent: 4918344 (1990-04-01), Chikamori et al.
patent: 4983152 (1991-01-01), Kimberlin et al.
patent: 4986802 (1991-01-01), Scoville et al.
patent: 5080642 (1992-01-01), Takami
patent: 5145471 (1992-09-01), Meier-Burkamp
Three Polaroid photographs of Milwaukee Drill gear train/motor/clutch assembly.
Two Polaroid photographs of Panasonic cordless impact wrench motor/gear train.
One Polaroid phtograph of Bosch air drill gear set.
One Polaroid photograph of Hitachi cordless impact wrench motor/gear train.
One Polaroid photograph of Makita cordless impact wrench motor/gear train.
Braun Leslie A.
Henn David E.
Snap-on Tools Corporation
LandOfFree
Power tool plastic gear train does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power tool plastic gear train, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power tool plastic gear train will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1700844