Abstract:
The phase control mechanism includes first gears (3, 4) coupled to the output shafts which are to be phase controlled. A transfer gear (5) is provided for rotation or operation independent of the input and is coupled to the first gears (3, 4) to allow rotary motion to be transferred between the first gear members and a phase adjuster (10) causes the first gears (3, 4) to advance on regress relative to one another to change the phase relationship between the outputs.
Abstract:
A hinge is disclosed which includes an opening lever (20) and a pivot coupling (33) for pivotally coupling the opening lever to a fixed article. A door attitude shoe (14) is pivotally coupled to the opening lever (20) by a pivot (35) and the attitude shoe (14) is fixed to a door to be opened and closed. The opening lever (20) is pivotally movable about the pivotal coupling (33) to open and close the door and pivotal movement of the door attitude shoe (14) about the second pivotal coupling (35) enables control and positioning of the door relative to the door opening. The movement about the first pivot or coupling (33) and second pivot (35) can be sequential, or can occur simultaneously by the inclusion of an intermediate control lever (88).
Abstract:
A double orbital transmission is disclosed which has first and second input shafts (12 and 13) which carry first and second eccentrics (14 and 16). The pawl carrier (24) is mounted on the second eccentric and the pawl carrier carries a plurality of pawls (32 and 34). An orbital body (50) is mounted on the first eccentric (16) and carries first and second assembler rings (42 and 44) for engaging with the pawls (32 and 34). The pawls (32 and 34) are restrained to undergo orbital motion by an orbit control plate (104) and the orbital body (50) is also constrained to undergo orbital motion and orbital control plate coupled to an output (120). A phase controller is provided to control the phase relationship between the two input shafts (12 and 13) and therefore the drive ratio of the transmission by controlling the phase relationship between the eccentrics (14 and 16). The combined orbital motion of the assembler rings (42 and 44) and the pawls (32 and 33) cause rotary power to be transmitted from the input shafts (12 and 13) to the output (120).
Abstract:
A gear profile for orbital gear transmission is disclosed in which an outer gear (10) and an inner gear (30) are included. At least one of the gears is constrained for orbital motion to impart rotary motion to the other of the gears. The profile of teeth (34) of inner gear (30) is sinusoidal at least in the vicinity of pitch circle (36) of the gear (30) and the pitch circle (36) coincides with the point of inflection (52) of the sinusoidal profile of the teeth (34). The outer gear (10) has a pitch circle (25) and the point of inflection (19) of the inner gear (30) rolls across the point of the profile of teeth (14) of the outer gear (10) where the pitch circle (25) intersects the profile of the teeth (14). Orbital transmission systems are disclosed in which one or the other of the inner gear (10) or outer gear (30) is mounted on an eccentric (63) which is driven by an input shaft (64). An orbit control plate (67) or regressive gear (110) restrains one of the gears (10 or 30) for orbital motion and the plate (67), or regressive gear (110), has a braking member (80) for fixing the plate (67), or regressive gear (110), stationary. In order to place the transmission into neutral, the brake (80) can be released so that the orbit controle plate (67) is able to rotate rather than to constrain the outer gear (10) or inner gear (30) for orbital motion.
Abstract:
The phase control mechanism includes first gears (3, 4) coupled to the output shafts which are to be phase controlled. A transfer gear (5) is provided for rotation or operation independent of the input and is coupled to the first gears (3, 4) to allow rotary motion to be transferred between the first gear members and a phase adjuster (10) causes the first gears (3, 4) to advance on regress relative to one another to change the phase relationship between the outputs.
Abstract:
A transmission is disclosed which has an input power supply (53, 34, 328) and a plurality of secondary members which are driven by the input power supply. The secondary members can be in the form of pawls (344, 361) or rack and pinion arrangements (54, 56). An infinitely variable gear ratio adjustment mechanism which can adjust the gear ratio between a maximum and minimum ratio is provided and generally comprises a fixed inner eccentric (318) and a movable outer eccentric (320). The outer eccentric (320) can be moved to adjust the eccentricity of the eccentrics to thereby set the gear ratio to any ratio between the minimum and maximum. The pawls (344, 361) or racks and pinions (54, 56) are arranged on the eccentrics (318, 320) and are driven by the input for only part of each revolution of the input other than when the gear ratio is set as 1:1. A mechanism for ensuring that the load applied to the secondary members is distributed between at least two of the secondary members at any one time is provided and comprises a lever arrangement (106), a floating ring arrangement (76) or a resilient biasing rubber ring (380, 382).