208 results about "Crown gear" patented technology

A portable baby bottle blender includes a baby bottle having a top collar with external threads and a bottom collar with external threads. A top cap has a central aperture. The top cap is internally threaded to be removable threaded onto the top collar of the baby bottle and holds a feeding nipple extending through the central aperture of the top cap onto the top collar. A sealing O-ring fits onto the bottom collar of the baby bottle. A bottom cap has a rim internally threaded. An agitating unit is centrally retained within the bottom cap. When the rim of the bottom cap is removably threaded onto the bottom collar of the baby bottle and against the sealing O-ring, the agitating unit extends into the bottom collar of the baby bottle. A base member has a top recess to receive the bottom cap on the baby bottle therein. A spur-crown gear coupling is for operating the agitating unit, so that the mixing blade assembly mixes formula within water placed through the top collar of the baby bottle.

A reciprocating power tool and drive mechanism with a drive shaft mounted for reciprocating movement relative to a housing along a center longitudinal axis of the drive shaft. The drive shaft has a front end adapted to attach to an external shaft or tool attachment, a rear end, and a slot oriented perpendicular to the center longitudinal axis of the drive shaft between the front and rear ends. A motor driven shaft imparts rotary movement to a pinion gear, which meshes with a crown gear to impart rotary motion to the crown gear about its center axis. A drive pin connected to the crown gear has an eccentric pin eccentrically offset relative to the center axis of the crown gear for engagement in the slot of the drive shaft so as to impart the reciprocating movement to the drive shaft on rotation of the crown gear.

Machines for sorting objects having a series of carriages fixed at a given interval (P) to two drive belts configured to move along closed-loop paths in two parallel vertical planes are provided. Each path may include a top horizontal section and a bottom horizontal section joined together by two curved connecting end sections. Two end assemblies may be arranged at the curved end sections of the path. Each assembly may include crown gears which are configured to engage with the belts and a series of sliders which are configured to retain the carriages along a semicircular section close to the crown gears. The carriages are thus able to perform a rotary / translational movement along the end connecting sections and keep their support surface horizontally oriented.

A mop includes a handle connected to one end of a first rod. The other end of the first rod is connected to a second rod. A driving unit includes a spiral member disposed in one end of the second rod. A clutch unit is disposed in the first rod. A mopping unit is pivotably connected to the other end of the second rod. The clutch unit includes a sleeve disposed in the first rod and having a crown teeth defined in a lower end thereof. A bearing is connected to an opening of the sleeve, which is rotatable relative to the bearing. A crown gear is disposed in the sleeve and separably engaged with the crown teeth. A spring is disposed between the crown gear and the bearing. The spiral rod inserts through the bearing and the spring and is fixed to the crown gear.

An orthogonal axis gear, a planetary gear reduction mechanism portion, and a differential gear mechanism portion are arranged along an axial center direction of left and right output shafts. The planetary gear reduction mechanism portion is constituted such that a sun gear thereof is provided as a continuation of a crown gear of the orthogonal axis gear, a ring gear thereof is fixed to a differential case, and a planetary carrier thereof serves as an output. Further, the differential gear mechanism portion employs a planetary gear mechanism and is constituted such that a ring gear of the planetary gear mechanism is provided as a continuation of the planetary carrier of the planetary gear reduction mechanism portion, a planetary carrier thereof is provided as a continuation of the left side output shaft, and a sun gear thereof is provided as a continuation of the right side output shaft.

This invention relates to a drive unit for driving a ring gear, comprising a motor, a transmission and a drive shaft, on which a pinion is arranged for driving the ring gear, wherein the drive unit includes a mechanical overload protection. In accordance with the invention the overload protection is arranged between the transmission and the pinion.

In a method of manufacturing multiple transmission units with individually selectable gear ratios that vary from unit to unit, a gear pair having a desired transmission ratio is selected from a multiplicity of interchangeable gear pairs that includes both spiroplan gears and conventional crown gear and pinion combinations. The selected gear pair is then installed into a housing having first and second bearing sections configured to support bearings in which the shafts of the selected gear pair are rotatably mounted. The bearing sections are configured such that, for every gear pair that may be selected from among the multiplicity of gear pairs, the bearing sections support the first and second shafts in such a position and orientation that teeth of the gears engage with each other and a longitudinal axis of one of the gears of the gear pair is offset by a fixed distance from a longitudinal axis of the other. The fixed distance is maintained at a constant value which does not vary with or depend on the tooth configuration of the gear pair that is selected. A modular transmission system is thus provided, which can achieve a wide range of gear ratios, by an appropriate selection of interchangeable gear pairs, without need of modification of the basic components of the apparatus.

A reduction gear capable of satisfying, at high level, each of: realizing a high reduction ratio; preventing backlash by securing rotation smoothness; and carrying out compactification and weight saving of entire mechanism is provided. The reduction gear of the invention is a modified crown reduction gear, comprising: a pressing mechanism 16 operated to rotate; a fixed crown gear 2 fixed to an external member 15; a movable crown gear 1, wherein the difference in the number of teeth between the gears is one; and an output axis 3 flexibly attached to the gear 1. The gear 1 engages with the gear 2 at a slant by pressing-force provided from the mechanism 16. In this instance, contact locations of teeth of the gears 1 and 2 are dispersed at two places existing at both sides between which a gradient center line intervenes.

In one aspect, a machine includes an engine supported on a machine body. The engine includes a housing and a gear train that includes a crank gear meshed with a cam gear that is meshed with at least one powered gear. The cam gear is attached to a cam shaft by a drive coupler. The cam shaft is rotationally supported in the housing on a plurality of bearings, and the cam gear is rotationally supported on a stub shaft with an inner surface that is out of contact with the cam shaft. The stub shaft is attached to the housing of the engine.