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Class 475/177 - Internal and external tooth sets


Subclass of Class 475 - Planetary gear transmission systems or components
Definition: Subject matter wherein the teeth of one of said sets of
No. of patents: 53
Last issue date: 05/17/2011


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NumberTitleIssue Date
7942779Turning portion structure of industrial robot
To facilitate an integrating operation and to make fabricating cost inexpensive. An idle gear for transmitting rotation of an input gear of a drive motor to a cylindrical gear is rotatably supported by an input side end portion of a specific one crank pin, and there...
05/17/2011
7476174Eccentric oscillating-type planetary gear device
Elastic deformation of bridge portions in an externally toothed gear and external teeth is suppressed, and this extends the life of tooth surfaces of external teeth 19, improves vibration characteristics, and markedly increases output torque while preventing ...
01/13/2009
7431676Self-contained rotary actuator
Self-contained rotary actuator provides motive power in automated mechanical systems and includes cross-roller bearing as a structural joint. Outer attachment shell rigidly interfaces the mechanical system and contains motor stator and internal bull gear. Internal b...
10/07/2008
7354371Motor-incorporated hypocycloid-type speed reducer
A motor-incorporated hypocycloid-type speed reducer includes: a motor housed in a case; a first larger internal gear; a second smaller internal gear coaxial with a motor shaft; an output shaft coaxial with the motor shaft, the output shaft being provided with the se...
04/08/2008
7354108Seat reclining apparatus
A seat reclining apparatus includes an internal gear, an external gear, an eccentric drive mechanism, and a base plate. The internal gear is secured to a seatback arm. The external gear includes an external tooth portion being in meshing contact with the internal ge...
04/08/2008
7351177Series of gearboxes
A series of gear systems is disclosed, each of which comprises least one double-shaft, reversible planetary stage including a combination of an open positive gear system having lantern-gear teeth and an output system. “z1” represents the lantern-gear ...
04/01/2008
7344467Self-regulating continuously variable transmission
A self regulating continuously variable torque transmission in which two planetary gears of lesser diameter drive two internal gears of greater diameter by orbiting and rotating around an output shaft which forms the rotational axis of the ring gears. Planetary gear...
03/18/2008
7303499Displacing device
A device for adjusting two parts (2, 3) relative to one another, other than for a displacing device which is provided displacing a camshaft. The adjusting device is smooth and easy to operate, is self-locking, and ensures a backlash-free, continuous displacem...
12/04/2007
7297087Micro gear system operating according to the strain wave gear principle with hollow shafts
A micro gear system, operating according to the principle of a strain wave gear system, a Wolfrom gear system, or a similar planetary gear system comprises at least one sun wheel (14) and at least two planet wheels (16) meshing with the sun wheel (1...
11/20/2007
7235030Step down gear train for an adjusting device of an automotive vehicle seat
A gear train is provided including an output shaft rotatable about an output axis, a housing rotatable relative to the shaft, a toothed washer having a circumferential first toothed surface, an eccentric that is rotatably disposed on the shaft and has an eccentric d...
06/26/2007
7143845Drilling apparatus with anti-vibration inertial body
A blast-hole drilling rig includes a carriage, a mast disposed on the carriage, and a rotary head mounted on the mast for up-and-down movement. The rotary head includes: a housing forming an internal chamber, a hydraulically driven motor, and a rotation transmission...
12/05/2006
7081062Standardized rotary actuator
A rotary actuator incorporating a shell, an output plate and a cross-roller bearing retaining the output plate within the shell. A prime mover, disposed within the shell, exerts torque on a gear train within the shell. A pair of gears, disposed on either side of the...
07/25/2006
6832970Reduction gear for a starter-generator of an internal combustion engine
A reduction gear for a starter-generator of an internal combustion engine, wherein the starter-generator is functionally linked with the crankshaft (2) via a drive belt (6). A planetary gear is mounted in the force-transmitting path between the cranksh...
12/21/2004
6679801Eccentric oscillating-type speed reducer
Axial positions of two driven external gears 66 making up each of a plurality of paired-gear groups 67 with respect to an input shaft 62 are made identical, and a different paired-gear group 67 is arranged by being offset in the axial direction of the inp...
01/20/2004
6607461Electrically driven actuator
A low-vibration and precise electrically driven actuator is provided. A disk is fixed to an input shaft, and a planetary gear is fixed to an output shaft. A circular recess is formed in the disk so as to be eccentric with respect to the input shaft. A rin...
08/19/2003
6582337Power transfer assembly equipped with a co-planar gear assembly
A power transfer assembly is provided with a coplanar gear assembly. The coplanar gear assembly can be utilized in a differential, a multi-speed transmission, a four-wheel drive transfer case, and a fluid pump....
06/24/2003
6578921Seat reclining device
A seat reclining device has an external gear member and an internal gear member positioned in opposing relation, and a stopper member between the opposing gear members for regulating the reclining movement of the backrest relative to the seat cushion. The...
06/17/2003
6358177Power transfer assembly equipped with a coplanar gear assembly
A power transfer assembly is provided with a coplanar gear assembly. The coplanar gear assembly can be utilized in a differential, a multi-speed transmission, a four-wheel drive transfer case, and a fluid pump....
03/19/2002
5913744Eccentric gear
An eccentric gear comprises two differently large gear rings (6, 7), of which an outer ring (6) has a certain number of inwardly directed teeth and an inner ring (7) has a smaller number of outwardly directed teeth, of which only a few engage with the out...
06/22/1999
5820504Trochoidal tooth gear assemblies for in-line mechanical power transmission, gear reduction and differential drive
Trochoidal tooth form gear assemblies for in-line mechanical power transmission, gear reduction and differential drive employ internally meshed gear sets having differing numbers of trochoidal gear teeth, all of which are in continuous contact as one gear...
10/13/1998
5586833Articulated fitting for seats with adjustable backrest, in particular motor vehicle seats
Articulated fitting for seats having an adjustable backrest, in particular motor vehicle seats. The articulated fitting arranged on each longitudinal side of a seat has a stationary articulated part associated with the seat part and a swivelable articulat...
12/24/1996
5536217Clearance take-up articulation used in automobile seats
An articulation used in automobile seats, comprising: a mobile flange having a mobile flange inner toothing; a double satellite; a fixed flange having a fixed flange inner toothing for cooperating with said double satellite, the toothings of which mesh on...
07/16/1996
5496225Vehicle seat articulations
The vehicle seat articulation includes a fixed flange fixed to a first framework of the seat, a mobile flange rigidly connected to a second framework of the seat, a cup member enabling the mobile flange to execute an orbital movement causing an angular mo...
03/05/1996
5484345Compact gear reducer for rotation through an angle in either directions
A gear reducer for reciprocal rotation wherein the rotation of a motor 1 is transmitted to a worm pinion 4 integrated with an input shaft 2, and is further transmitted to a helical worm wheel 10. The helical worm wheel 10 and an eccentric member 11 are sp...
01/16/1996
5470283Speed reduction device
A speed reduction device employing a housing with rotatably mounted input and output shafts. The input shaft includes an eccentric shaft upon which is rotatably mounted a gear wheel. The gear wheel meshes with a ring gear fixed to the housing. The gear wh...
11/28/1995
5310325Rotary engine with eccentric gearing
A rotary engine having a three apex rotor rotatably and eccentrically mounted on a driven shaft. The rotor having a central internal ring gear meshing with an eccentrically mounted pinion gear. The pinion gear drives the driven shaft with a 1:1 ratio and ...
05/10/1994
5308294Hinge joint with bearings for the eccentric for use in seats of motor vehicles and the like
A hinge joint which can be installed, for example, between the body supporting portion and the back rest of the seat in a motor vehicle has a first leaf affixed to the body supporting portion, a second leaf affixed to the back rest and a horizontal pintle...
05/03/1994
5292289Internally meshing planetary gear assembly
A planetary speed-up and -down gearing comprising an external gear having outer teeth (7A) defined by a trochoidal curve and an internal gear having outer pins (9) internally meshed with the outer teeth (7A) of the external gear and being eccentric with r...
03/08/1994
5277672Clearance take up device for so-called continuous epicycloidal train articulations, and its mounting mode
The fixed flange with an inner toothing and the mobile flange with an inner toothing cooperate with a double satellite mounted in a ball bearing forming inside a housing for a composite cam. A sufficient excentration is provided between the diameter of th...
01/11/1994
5209637Hypocycloidal train mechanism for a vehicle seat including a brake with differential torque and anti-reversing properties
In a hypocycloidal train mechanism, an annular spring is mounted in front of a roller bearing housed between a double satellite and a control cam on a face turned toward a mobile flange. This annular spring has a semicircular cross-section, with one end o...
05/11/1993
5145467Geared motor for the drive of components, such as motor-vehicle accessories, particularly an opening roof
This geared motor comprises an outlet shaft (2) of the motor (1), carrying two coaxial screws (3, 4) offset axially and of mutually opposed screw pitch, two gearwheels (5, 6) located on either side of the shaft and each interacting with a screw (3, 4), an...
09/08/1992
5129868Quick-return motion mechanism of automatic magnetic drilling machine
A quick-return motion mechanism for use in an automatic magnetic drilling machine including a feed motor for generating power transferred through a worm wheel and a high-ratio reduction gear to a handle shaft to drive an electric drill. A one-way clutch i...
07/14/1992
5123882Compound planocentric cycloidal gear drives with orthogonal planet arrangements
A pinion shaft has thereon a sun gear for imparting rotational motion to or to be rotated by a pair of planetary gears which rotate about space axes extending parallel to and lying in a first plane containing the axis of said shaft. Each of a pair of plan...
06/23/1992
5066267Transmission having an eccentric and a cycloid gearing
A transmission for driving a swivel joint between two elements which are rotatable relative to each other. Cam disks are moved by means of a multiple eccentric, each such cam disk having an outer edge in the form of a closed cycloidal path and being arran...
11/19/1991
5016491Gear assembly
This invention relates to a gear assembly comprising two parallel dual strain wave gears. The moment transmission ability of the gear assembly is relatively high, if the gears are interconnected and they have a common flexspline (2) both ends of which are...
05/21/1991
4887863Continuous joint for vehicle seat with automatic clearance compensation
Continuous joint for seat permitting compensation of clearances consisting of a fixed plate integral with the seat part and a moving plate integral with the back, this assembly capable of having an angular movement of one of the parts in relation to the o...
12/19/1989
4884473Dual epicyclic speed changer
The epicyclic speed changer of the present invention comprises a pair of rotary members respectively mounted on two eccentric sections included in a first shaft in a diametrically opposing arrangement, wherein the rotating movements of the two rotary memb...
12/05/1989
4841810Dual orbiting gear planetary drive
This invention discloses a planetary drive comprising a first rotary member with an internal circular cylindrical traction surface or an internal ring gear rotatably mounted on a first shaft in a first eccentric relationship with respect to the central ax...
06/27/1989
4825726Differential gear arrangement
A differential gear arrangement has an annular planet gear having internal and external teeth which mesh with a sun gear and a ring gear respectively. The planet gear is supported in a carrier which is journalled in a housing and is also journalled intern...
05/02/1989
4807494Stepwise variable speed planetary drive
The variable speed planetary drive of the present invention comprises a combination of a plurality of external gears of varying pitch diameters and a first power transfer gear coaxially affixed to each other and rotatably mounted on an eccentric section o...
02/28/1989
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