摘要:
A single input, multi-output drive system adapted for use, for example, with a power seat, includes an input power source, such as a PMDC motor, and at least one transmission further including a plurality of output elements shiftable between engaged and disengaged conditions relative to the source, so as to be selectively driven thereby, and drivenly coupled, for example, to various functions of the power seat, and a plurality of active material actuators drivenly and individually coupled to an associated one of the output elements, and configured to selectively engage the associated output element and input source.
摘要:
A transfer case assembly (10) for selectively moving a seat assembly in a plurality of adjustment directions. The assembly comprises a motor (12) and a drive shaft (14) operatively connected to the motor (12) for rotation in response to actuation of the motor. A plurality of driving gears (16, 18, 20) are mounted to the drive shaft for rotation therewith. A plurality of driven (24, 28, 32) shafts corresponding with the respective plurality of driving gears are provided for independently controlling movement of the seat assembly in the fore/aft, up and down direction. A driven gear is rotatably mounted to each of the driven shafts and meshed with a respective one of the driving gears for rotation therewith. A coupler (22, 26, 30) is disposed adjacent to each of the driven gears for selectively coupling the driven gears to the respective driven shafts (24, 28, 32). A solenoid (38, 52, 66) is disposed adjacent to each of the couplers (22, 26, 30) for operative engagement therewith for selectively coupling the driven gears with the respective driven shafts to transfer rotation of the drive shaft to rotation of the driven shafts through independent or simultaneous actuation of the solenoids and the motor whereby the seat assembly may be moved in one or more of the plurality of adjustment directions.
摘要:
A rotary member mounting structure is configured for mounting a speedometer worm gear closely adjacent to a drive gear that is supported on an output shaft. The rotary member mounting structure basically has a rotation preventing structure, a first fastening ring and a second fastening ring. The rotation preventing structure is configured to prevent the drive gear from rotating relative to the output shaft 1 and to prevent the worm gear from rotating relative to the output shaft. The first fastening ring is configured to prevent the drive gear from sliding axially toward the worm gear and to prevent the worm gear from sliding axially toward the drive gear; and a second fastening ring is configured to prevent the worm gear from sliding axially in the direction opposite (i.e., away from) the drive gear.
摘要:
The invention relates to a drive for closure elements, in particular in the area of garage and industrial doors, but also for example in the form of roller shutters, with a reference value generator arranged in the motor or in the gearing of the drive for determining the actual position of the closure element. When a reference point position is reached, the reference value generator emits a signal or causes a signal modification, on the basis of which the actual-value generator can be calibrated. According to the invention, the reference value generator has two reference discs rotating in different speeds, which, in predetermined angular positions to one another, define the reference point positions which can be scanned by means of at least one scanning device.
摘要:
A drive system for adjusting parts of motor vehicle equipment, in particular parts of a vehicle seat, having an electrical drive motor (10) which includes a drive motor shaft (12) and a worm (14) disposed on that shaft, also having a mechanical adjusting device, which includes at least one worm wheel (16) cooperating with the worm (14), one coupling unit, and one power takeoff unit. It is proposed that the coupling unit has at least two couplings (28), which are disposed on at least one auxiliary shaft (18) connected in a manner fixed against relative rotation to the at least one worm wheel (16), and which independently of one another couple the drive motor (10) to at least two power takeoff elements (54) of the power takeoff unit.
摘要:
An orbital transmission comprising an input element connected to a first power source, a control element connected to a second power source and an output element connected to the control element whereby rotational power is transmitted by an orbiting gear in the output element. The orbital transmission functions based on the relationship of the speed of the orbit of the orbiting gear and the speed of rotation of the input shaft. When the orbiting gear makes one complete orbit in the same time that the input shaft makes one revolution, then the transmission is in neutral and no rotation will be imparted to the output shaft. When the orbiting gear makes less orbits in a unit of time than the input shaft makes revolutions in the same unit of time, the transmission will impart rotation in a first direction to the output shaft which may be forward. When the orbiting gear makes more orbits in a unit of time than the input shaft makes revolutions in the same unit of time, the transmission will impart rotation in a second direction to the output shaft which may be reverse. The direction of rotation of the input shaft must be the same as the direction of orbit of the orbiting shaft.
摘要:
For some powered drum winches, e.g. in sailing boats, it is desirable that the drum can be driven with two different speeds. Basically, this is no technical problem, but it has been difficult to achieve both a high efficiency and a simple construction. It has been proposed that with the use of a plural shaft gear an advantageous result is obtainable in making the gear drive the drum with two different speeds based on a reversible driving motor being driven in one or the opposite direction. This control principle is also used in the present connection in which, however, it is disclosed how the relevant gear can be designed in a compact and inexpensive manner about only a single gear shaft.
摘要:
A multicolor image forming apparatus creates a series of different color toner images on a rotatable image member. The toner images are transferred in registration to a receiving sheet carried by a transfer drum. The transfer drum is driven by the image member during transfer but is driven by an independent overridable drive between images. The independent overridable drive includes a worm gear which engages a gear fixed to the transfer drum to rotate the transfer drum. The worm gear is mounted on a rotatable shaft which is driven by a stepper motor. The shaft rotates the worm gear but the worm gear can slide on the shaft or otherwise move axially. A shoulder limits axial movement providing positive drive for the transfer drum. When the image member contacts the receiving sheet and begins to drive the transfer drum it overrides the worm gear and the worm gear separates or floats away from the limiting shoulder. This overridable drive provides precise rotation when driving and permits smooth and non-cogging overriding.
摘要:
A power transmission is provided including a pair of input shafts with a first gear train drivingly connecting the input shafts for equal inverse rotation. An output shaft is also provided and second gear train structure drivingly connects each of the input shafts to the output shaft for rotation of the latter in response to inverse rotation in the input shafts. Also, a powered shaft is provided and torque transmitting structure drivingly connects the powered shaft to a selected input shaft for rotation of either input shaft in the same direction in response to a given directional rotation of the powered shaft. The power transmission is duplicated in a second transmission with the output shafts of the power transmissions drivingly connected to opposite side drive wheels of a vehicle, whereby the power transmissions may be equally actuated for forward and reverse movement of the associated vehicle as well as inversely operated for steering the associated vehicle.
摘要:
The planetary drive structure includes a variable speed transmission by which the drive structure speed is universally variable in both forward and reverse directions. The drive structure also includes selectively engageable power takeoff structure. The variable speed feature of the transmission is effected by means of a sun gear and a ring gear having planet gears positioned therebetween and means for varying the resistance to rotation of the sun gear. The means for varying the resistance to rotation of the sun gear may be hydraulically or electrically energized and includes selectively operable accessory drive structure. The method of the invention includes the step of varying the speed of a hydraulic transmission in planetary drive structure in both forward and reverse directions substantially universally over the range of speeds thereof, selectively actuating accessories through the variable speed transmission and selectively actuating power takeoff means with the planetary drive structure.