Abstract: Disclosed inventions include:•integrated pneumatic flow pressure regulator assemblies with and/or without filters and/or swivels, per FIGS. 1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, 1M and 1N for use with all of Applicant's pneumatic torque gun models;•activation, or trigger, lock safety assemblies, per FIGS. 2A1, 2A2, 2B1 and 2B2, for use with all of Applicant's electric and pneumatic torque gun models;•automatic torque gun shifting assemblies including:—rotation speed-sensing centrifugal multi-speed automatic shifting assemblies, per FIGS. 3A, 3B and 3C, for use with all of Applicant's electric and pneumatic torque gun models;—torque-sensing centrifugal multi-speed automatic shifting assemblies, per FIGS. 4A, 4B, 4C, 4D, 4E, 4F, 4G, 4H, and 4I, for use with all of Applicant's electric and pneumatic torque gun models;•helical cam, or wobbling, turning force multiplication assemblies, per FIGS.

Abstract: The present invention is to provide an industrial robot, which is placed in vacuum for use, capable of efficiently cooling down hand- or arm-driving motors which are arranged inside the arm in air. The industrial robot is provided with a motor for rotating a second arm unit with respect to a first arm unit, a motor for rotating a hand with respect to the second arm unit, a reduction gear for reducing the rotation of the motor and transmitting it to the second arm unit, and a reduction gear for reducing the rotation of the motor and transmitting it to the hand; the hand and the arm are placed in vacuum. The reduction gears and are coaxially arranged so that the center of rotation of the second arm unit with respect to the first arm unit coincides with the axial centers of the reduction gears. The interior space of the hollow first arm unit is kept at atmospheric pressure in which the motors and the reduction gears are arranged.

Abstract: An electric motor-driven screw driving or drilling tool device with a planetary gear, comprising a ring gear and planet wheels mating with the ring gear, wherein the ring gear can be locked and fixed relative to the housing via locking bodies which are pretensioned by springs in a radially inward direction, the locking bodies being radially outwardly displaceable when a switch-off torque has been exceeded, such that the ring gear can be rotated relative to the housing, and the drive shaft is no longer driven. In order to improve the ease of operation of the device and reduce its size, the invention proposes leaf springs which extend in the peripheral direction of the ring gear, whose lever arm lengths can be adjusted in a peripheral direction to generate different bending forces acting on a respective locking body.

Abstract: A hammer drill/driver with a motor having an output member, a planetary transmission, a clutch assembly and a clutch bypass. The planetary transmission, which includes a ring gear, receives rotary power from the output member and produces a rotary output. The clutch assembly has a clutch profile, which is coupled to the ring gear, and a first pin assembly having a first follower, a first pin member and a first spring that biases the first follower into contact with the clutch profile. The clutch bypass has a bypass profile, which is coupled to the ring gear, and second pin assembly having a second follower, a second pin member, a second spring, which biases the second follower away from the bypass profile, and a third spring, which biases the second follower away from the second pin member. A method for operation of a hammer drill/driver is also provided.

Abstract: A portable power tool with a housing, a motor having a motor output member, a driven member and a transmission. The transmission, which is located in the housing, is configured to receive a rotary input from the motor output member and to produce a rotary output that is transmitted to the output spindle. The transmission has a plurality of planetary transmission stages, each of which including a ring gear, a planet carrier and a plurality of planet gears that are supported by the planet carrier for meshing engagement with the ring gear. The transmission further includes at least one member that may be configured in a first condition, which renders at least one of the planetary transmission stages operable in an active mode, and a second condition, which renders at least one of the planetary transmission stages operable in an inactive mode. The transmission is operable in at least three overall speed reduction ratios.

Abstract: A multi-speed transmission assembly for a rotary power tool. The transmission assembly includes a plurality of transmission stages, with at least two of the transmission stages employing a movable reduction element that permits the transmission stage to be operated in an active mode and an inactive mode. The movable reduction elements are coupled to a switching mechanism that switches the reduction elements in a predetermined manner to provide at least three-gear reduction or speed ratios.

Abstract: A portable power tool with a housing, a motor having a motor output member, a driven member and a transmission. The transmission, which is located in the housing, is configured to receive a rotary input from the motor output member and to produce a rotary output that is transmitted to the output spindle. The transmission has a plurality of planetary transmission stages, each of which including a ring gear, a planet carrier and a plurality of planet gears that are supported by the planet carrier for meshing engagement with the ring gear. The transmission further includes at least one member that may be configured in a first condition, which renders at least one of the planetary transmission stages operable in an active mode, and a second condition, which renders at least one of the planetary transmission stages operable in an inactive mode. The transmission is operable in at least three overall speed reduction ratios.

Abstract: A multi-speed transmission assembly for a rotary power tool. The transmission assembly includes a plurality of transmission stages, with at least two of the transmission stages employing a movable reduction element that permits the transmission stage to be operated in an active mode and an inactive mode. The movable reduction elements are coupled to a switching mechanism that switches the reduction elements in a predetermined manner to provide at least three-gear reduction or speed ratios.

Abstract: A starter motor for cranking an internal combustion engine includes an electric motor, a planetary gear device for reducing a rotational speed of the electric motor, and a shock-absorbing device that absorbs excessive impact transmitted from the engine to the starter motor. The planetary gear device has an annular member contacting a separating plate that separates the planetary gear device from the electric motor. A depressed portion such as a circular groove is formed on an axial end surface of the annular member. Lubricant retained in the depressed portion lubricates the end surface that rotates relative to the separating plate to absorb the excessive impact transmitted from the engine, and thereby abrasion wear of the end surface is suppressed.

Abstract: A speed changing mechanism includes two planetary gear sets and a movable gear that is controlled to be movably engaged with one of the two planetary gear sets to generate two different speeds. A third speed can be output when the movable gear is moved to a position where the movable gear is not engaged with either of the two planetary gear sets.

Abstract: A multi-speed transmission assembly for a rotary power tool. The transmission assembly includes a plurality of transmission stages, with at least two of the transmission stages employing a movable reduction element that permits the transmission stage to be operated in an active mode and an inactive mode. The movable reduction elements are coupled to a switching mechanism that switches the reduction elements in a predetermined manner to provide at least three-gear reduction or speed ratios.

Abstract: A self-shifting transmission apparatus having a rotational drive and a rotational output spindle. A first transmission gear and an overrunning clutch are rotatably connected in series between the rotational drive and the rotational output spindle. A centrifugal clutch is rotatably connected in series between the rotational drive and the rotational output spindle. The centrifugal clutch is rotatably connected to a shaft which rotates in the overrunning clutch such that upon the drive rotating at and above a predetermined rotational speed, the centrifugal clutch engages to rotate the output spindle while rotating the shaft to overrun within the overrunning clutch. Upon the drive rotating below the predetermined rotational speed, the centrifugal clutch disengages thereby permitting the overrunning clutch to engage the shaft and rotate the output spindle through the first transmission gear.

Abstract: A driving unit (1), comprising: a motor (10), a driven shaft (2) driven by the motor, and a transmission device (20) coupled between the motor and the output shaft and having one input shaft (21) and two rotational output members (22) and (23), wherein the ratio of transmission from the input shaft (21) to the first rotational output member (22) differs from the ratio of transmission from the input shaft (21) to the second rotational output member (23). The first rotational output member (22) is coupled to the motor housing (11) via a slip coupling (30). A helical spring (60) arranged so as to be coaxial to the motor presses the first rotational output member (23) against the motor housing (11), wherein that helical spring (60) engages the motor housing (11) via a pressure ring (50). This pressure ring (50) has a helical channel (52) for receiving the helical spring (60). The pressure ring (50) is rotatable to enable setting the maximum value of the moment that can be supplied to the output shaft (2).

Abstract: An automatic transmission (30) for a power tool includes reduction gearing (42-58) coupled between a motor (24) and an output member (28). A mechanism for adjusting speed (60) of the output member (28) is coupled with the reduction gearing (42-58). The mechanism for adjusting speed (60) is slidably biased such that upon change in torque, the mechanism for adjusting speed (60) moves which, in turn, engages and disengages the reduction gearing (42-58) to vary the speed of the output member (28) between a first and second speed.

Abstract: In a starter including a planetary gear reducer for reducing a rotational output of a motor and transmitting the reduced rotational output to a starting object, the motor includes an armature 3, a motor output shaft 31 and a cylindrical yoke 1. The planetary gear reducer includes a ring gear 8 fitted in and engaged with the yoke at its one end and having an inner peripheral gear portion 11 formed on the inner periphery thereof, a bearing 13 mounted on the side wall of the ring gear at the center thereof, a plurality of planetary gears 4 rotatably interposed between the outer peripheral gear portion 32 of the motor output shaft and the inner peripheral gear portion of the ring gear and a starter output shaft 21 rotatably supported by the ring gear side wall, the starter output shaft being connected at its one end with the planetary gears and adapted to be engageable at its other end with the starting object.

Abstract: A conventional gear mechanism for employment in, e.g., an accumulator driven electric bore machine or electric drill, is provided with an overload coupling provided with a light-weight plastic annular gear and a separate metal cam disk or guard plate which protects the plastic annular gear from the abrasive or damaging forces occurring at the time of the torque limiting produced by the slipping of the torque overload coupling. In the present invention the plastic annular gear and guard plate are formed as a single component, namely, a plastic annular gear with an integral wear resistant cam disk, the annular gear and cam disk formed as unit of an injection molded plastic, wherein the face side of the annular gear is layered with a wear resistant material.

Abstract: The preferably for use in an accumulator driven electric drill or electric screwdriver provided gear comprises an overload coupling for limiting torque for the adaptation to various torque loads. The overload coupling is comprised essentially of an annular gear which is formed of a plastic material and which circumscribes and is associated with a planetary gearing, which has an internal teeth which are in engagement with the planetary gear. A spring element presses against the annular gear, in order to press the annular gear axially against a detente wall, so that the annular gear is frictionally prevented from rotation, until a predetermined torque loading is exceeded and upon exceeding of the predetermined torque loading the annular gear is allowed to rotate. For this there is provided between the plastic annular gear and the spring element a metallic cam disk, which is non-rotatingly secured to the annular gear.

Abstract: A starter comprises a planetary gear reduction mechanism including an internal gear provided with a cylindrical chamber, a rotary disk, and a friction disk for restricting the rotary disk. The rotary disk is prevented from angularly moving with respect to the internal gear through an elastic member. When a larger load is applied to the internal gear which the elastic member cannot absorb, the rotary disk is released from the friction disk to angularly move to absorb such larger load.

Abstract: A gas-driven turbine starter (10) is provided with a slip clutch comprised of a radially inner portion (58,70) which is rotatable relative to the starter housing (14); and a radially outer portion (54,68) which is connected to the housing so as to be rotationally stationary relative thereto. This arrangement functionally separates the slip clutch from the power train, and provides for reduced wear of clutch discs.

Abstract: A miniature reduction gear includes a sun gear, a fixed inner gear and a movable inner gear and at least one planetary gear. The planetary gear is formed of three stages of outer teeth. Each outer tooth stage separately engages one of a sun gear, fixed inner gear and movable inner gear. The sun gear provides an input to the miniature reduction gear and the movable inner gear provides an output. The number of teeth of the planetary gear which engage with the sun gear is greater than the number of teeth which engage with either of the fixed inner gear or movable inner gear.