A cam transmission mechanism includes a rotary disk, a camshaft, contact members and a housing. The rotary disk has a periphery formed with equidistant projections, any two adjacent ones of which define an accommodating recess. The camshaft includes a shaft rod and a cam body that has at least one groove communicated with some of the recesses of the rotary disk. The groove and the recesses cooperate to form a plurality of confining spaces, within which the contact members are accommodated freely rollably for rotation transfer from the camshaft to the rotary disk. The housing is connected to the rotary disk for confining the contact members in the confining spaces, respectively.

A rotary table (1) includes a base body (10), a worm wheel (21), an inner ring (22), a plurality of rolling elements, and a worm screw unit (30). The worm screw unit (32) includes a worm screw (31) and a worm screw housing (32). The worm screw housing (32) has an opposing surface that faces an outer circumferential surface (21B) of the worm wheel (21). The worm screw housing (32) includes a flange portion (325) that protrudes from the opposing surface and covers a side face (215A) that, of the first gear (215) facing the opposing surface, is on the opposite side from the base body (10) in the axial direction of the worm wheel (21).

The present invention concerns an angular transmission device comprising: An input shaft and an output shaft, An assembly arranged for coupling the input shaft with the output shaft so that the output shaft can be rotationally driven by the input shaft, the assembly comprising a rotary actuator and a linear mobile, the rotary actuator being coupled with the input shaft and moves the mobile in a translation motion relative to the actuator, the mobile being coupled with the output shaft so that the rotation of the input shaft drives the rotation of the output shaft; the assembly further comprises a flexible blade fixed to said mobile and looped around the output shaft, so that when the actuator moves the mobile, the flexible blade drives the rotation of the output shaft. The invention also comprises a method using said device.

A cam transmission mechanism includes a rotary disk, a camshaft, contact members and a housing. The rotary disk has a periphery formed with equidistant projections, any two adjacent ones of which define an accommodating recess. The camshaft includes a shaft rod and a cam body that has at least one groove communicated with some of the recesses of the rotary disk. The groove and the recesses cooperate to form a plurality of confining spaces, within which the contact members are accommodated freely rollably for rotation transfer from the camshaft to the rotary disk. The housing is connected to the rotary disk for confining the contact members in the confining spaces, respectively.

A dispensing device for dental material, which includes a planetary gear drive with at least three planet gears in engagement with an annulus gear. The annulus gear is radial float-mounted relative to the planet gears. A radial force applied on the annulus gear urges the annulus gear into an off-center relationship with respect to an imaginary circle on which the planet gears are arranged.

The present invention concerns an angular transmission device comprising: An input shaft and an output shaft, An assembly arranged for coupling the input shaft with the output shaft so that the output shaft can be rotationally driven by the input shaft, the assembly comprising a rotary actuator and a linear mobile, the rotary actuator being coupled with the input shaft and moves the mobile in a translation motion relative to the actuator, the mobile being coupled with the output shaft so that the rotation of the input shaft drives the rotation of the output shaft; the assembly further comprises a flexible blade fixed to said mobile and looped around the output shaft, so that when the actuator moves the mobile, the flexible blade drives the rotation of the output shaft. The invention also comprises a method using said device.

Provided is a rotation drive device, which has a driving-force transmission mechanism configured such that a drive transmission member provided on a driving shaft and a disk-shaped driven member attached to a main shaft are directly or indirectly engaged with each other and which is further configured such that an increase in diameter of the driven member due to thermal expansion can be suppressed as much as possible. The driven member includes an inner ring attached to the main shaft, and an outer ring attached to the inner ring by shrinkage fit and having an engaging groove formed to be opened on an outer circumferential surface thereof. The inner ring is formed by a low thermal expansion member, which is an alloy having a thermal expansion coefficient of 5×10.sup.−6/K or less. The outer ring is formed of a hardenable iron-based material.

A worm drive has a worm and a worm wheel. Meshing assemblies are formed about the worm wheel each comprising a ball and a cup receiving a portion of the ball. Each cup is orientated at an acute angle toward the worm drive relative to a periphery of the wheel. The worm presents a concavely tapering side profile complementing a peripheral portion of the worm wheel. Consequently portions of the balls mesh with the worm and are free to rotate and so reduce shear forces between the worm and the worm wheel in use.

The present disclosure provides an automobile reducer including a worm shaft bearing including an inner race coupled to an end of a worm shaft, which meshes with a worm wheel, an outer race coupled to an inner surface of a gear housing, and a ball coupled between the inner race and the outer race; a motor boss having a coupling hole formed on one side, a motor shaft of a motor being inserted into the coupling hole, and an insertion hole formed on the other side, the worm shaft being inserted into the insertion hole; and a damping member coupled between a side surface of the inner race and a side surface of the motor boss and elastically supported in an axial direction.

The rotational motion transmission unit/mechanism for non-parallel axes (100) comprises of at least one driver (110) and a driven (120). The driver (110) has at least one guide (113) on it that curls around a driver axis (111) with an axial lead. The driven (120) rotates around its axis (121) that is non-parallel to driver axis (111) and has at least one follower (122) that is engage able with at least one guide (113) of the driver (110). When the driver (110) rotates around its axis (111), the guide (113) leads the engaged follower (122) of the driven (120) in an arc resulting in rotation of the driven (120). The driver (110) and the driven (120) can rotate continuously in synchronization.