摘要:
A sheet conveying apparatus includes a conveying member conveying and rotating a sheet, a moving member configured to be movable between a first guiding position and a second guiding position, a first abutting portion configured to stop the moving member at the first guiding position, a second abutting portion configured to stop the moving member at the second guiding position, and a planetary gear mechanism. The planetary gear mechanism includes a first rotating element configured to rotate in a first direction and a second direction which is opposite to the first direction, a second rotating element configured to rotate the conveying member by drivenly rotating with the first rotating element, and a third rotating element configured to move the moving member from the second guiding position to the first guiding position by drivenly rotating with the first rotating element rotating in the first direction, and move the moving member from the first guiding position to the second guiding position by drivenly rotating with the first rotating element rotating in the second direction.
摘要:
A lens drive unit includes: a driven member that moves a lens in an optical axis direction; a first gear rotated by a drive force of a drive motor; a second gear rotated by a drive force of a manual operation section; a third gear that engages with the first gear and the second gear and is rotated when the first gear is rotated but the second gear is not rotated whereas rotated when the second gear is rotated but the first gear is not rotated; and a fourth gear rotated when the third gear is rotated to transmit the drive force of the drive motor or the drive force of the manual operation section to the driven member, wherein the reduction ratio of the fourth gear to the first gear is set to be greater than the reduction ratio of the fourth gear to the second gear.
摘要:
An improvement to a mechanism for actuating valves or other control mechanisms, either manually or by means of an electric/electronic, pneumatic or hydraulic actuator, rendering the mechanism independent and dispensing with specific controls. The redundant actuation mechanism comprises a reduction gear (1) with epicyclic gearing, coupled to the top of the shaft (2) of the shut-off component (3) and attached to the body of the valve (4). A cover (5) is mounted on the body of the reduction gear (1). The reduction gear (1) comprises an endless screw (11) with a flywheel (12) at the end thereof for manually actuating the valve. The endless screw (11) meshes tangentially with the outside of the ring gear (13) of the epicyclic gearing. Three pinions (14) interconnected by a central gear (15) rotate inside the ring gear (13). The shafts (16) of the pinions (14) are supported at the lower end by bearings in the hub (7), which is provided with a seat that accommodates the six-sided end of the valve shaft (2), and with a top plate (17) that closes the epicyclic gearing. The hub (7) slides angularly inside the body of the reduction gear (1), while the ring gear (13) slides angularly on a step in the top opening of the body of the reduction gear (1). The valve (4) can be actuated by an actuator (6), to the output shaft (61) of which the central gear (15) that drives the pinions (14) of the epicyclic gearing is attached. The valve (4) can be manually actuated when the actuator (6) is withdrawn, and the central gear (15) is attached to the locking key (8), the end of which is screwed into the top plate (17).
摘要:
A medium transportation apparatus is provided with a plurality of medium transportation units; a drive source; a sun gear connected to the drive source; a planetary gear engaging the sun gear for transmitting a drive force to one of the medium transportation units according to a rotational direction of the sun gear; and a rotational load member for applying a rotational load to the planetary gear. The rotational load member is disposed on an outer side relative to a rotational shaft of the planetary gear in a radial direction of a rotational shaft of the sun gear.
摘要:
A kinetic energy generation device comprises a case having a fixation gear wheel disposed at an interior rim thereof and engaged with a movable gear wheel. A motion transmission member is installed in the case, and a motion transmission shaft is provided at the axis of the motion transmission member. An axis gear wheel is disposed in relation to the movable gear wheel so that the axis gear heel is engaged with the motion transmission shaft. External to the axis gear wheel, a flywheel is engaged therewith and revolved in synchronization with the movable gear wheel. A force applying shaft is provided at an end of the flywheel. Each of several links Is connected to the force applying shaft with its one end and to a cylinder piston with the other end thereof.
摘要:
Disclosed is a centrifugal impact wrench using an electric driving motor, which is rotated by electricity supplied from an electric power source, as a power source. The electric impact wrench includes: a sun gear 21 coupled to a rotation shaft 11 of the electric driving motor 10 and rotating; a plurality of planetary gears 22 including first gear 22a engaged with the sun gear 21 and rotating, and second gear 22b having a smaller diameter than the first gear 22a; an output gear 23 engaged with the second gear 22b of the planetary gear 22 and rotating; an inertia wheel 50 rotated by rotation force transmitted from the output gear 23; a spindle 70 rotatably connected to a front portion of the inertia wheel 50 and provided with a connector 71 at a side of the spindle 50; and a blow body 60 hitting the connector 71 when centrifugal force caused by the rotation of the inertia wheel 50 increases over a predetermined extent, and returning to an initial position by means of a return spring 67 when the centrifugal force caused by the rotation of the inertia wheel 50 is reduced below a predetermined extent.
摘要:
An apparatus converts rotary motion of a motor drive shaft into oscillatory motion of a work piece, for example, in a power tool. The apparatus comprises a planetary gear assembly connected to the motor for rotating an output gear. The output gear meshes with a drive gear including a drive pin. The drive pin fits in a yoke slot for reciprocation of the yoke upon rotation of the drive gear. The yoke is operatively connected to the work piece. An air flow system cools the power tool housing. The housing has an inlet aperture in the handle portion and an outlet aperture for placing the interior of the housing in communication with the atmosphere. A wall integral with the handle portion engages the body of the motor housing between a first end and openings in the body. The wall provides a barrier to minimize air flow between an intake air portion of the interior of the housing and an exhaust air portion. A fan on the motor drive shaft induces air flow from the intake air portion and exhaust air portion of the interior chamber into the motor housing through openings in the end walls. Air is discharged from the openings in the body.
摘要:
The invention is a system for controlling the position of a movable member moved by a prime mover by monitoring the position of the movable member; generating position information based upon this monitoring; and controlling the prime mover based upon the position information by providing a counter force to the movable member substantially equal to an opposing force opposing the movement of the movable member. The invention may include a movable member, such as a ram used for fastening a terminal to a wire; a spring; a DC planetary gear motor for providing a force to the movable member opposing the spring; a position detector, such as an linear voltage displacement transducer, to detect the position of the movable member and generate position information; and a controller, which may include a logic board or microprocessor and memory, for controlling the force from the motor in response to the position information.
摘要:
The motor according to the present invention consists of a piston (1), cylinder (2), connecting rod (3), connecting rod rotary bolt gear wheel (4), connecting rod rotary bolt (5), crank shaft (6), crank shaft bolt (7), double faced gear wheel (9) and other gear wheels (10, 11, 12). As the connecting rod (3) is moved by the connecting rod rotary bolt gear wheel (4) that moves together with the connecting (14) rotary bolt (5), without being directly dependent on the movement of the crank shaft bolt (7) although the connecting rod (3) is connected to the crank shaft (6) and to the piston (1); the crank shaft (6) moves independently of the connecting rod (3). This provides the difference between the travel path of the piston (1) between the lower and upper dead points, and the rotational diameter of the crank shaft bolt (7). In this case, the connecting rod (3) makes an elliptical movement on the crank shaft bolt (7) instead of a circular movement.
摘要:
An apparatus converts rotary motion of a motor drive shaft into oscillatory motion of a work piece, for example, in a power tool. The apparatus comprises a planetary gear assembly connected to the motor for rotating an output gear. The output gear meshes with a drive gear including a drive pin. The drive pin fits in a yoke slot for reciprocation of the yoke upon rotation of the drive gear. The yoke is operatively connected to the work piece. An air flow system cools the power tool housing. The housing has an inlet aperture in the handle portion and an outlet aperture for placing the interior of the housing in communication with the atmosphere. A wall integral with the handle portion engages the body of the motor housing between a first end and openings in the body. The wall provides a barrier to minimize air flow between an intake air portion of the interior of the housing and an exhaust air portion. A fan on the motor drive shaft induces air flow from the intake air portion and exhaust air portion of the interior chamber into the motor housing through openings in the end walls. Air is discharged from the openings in the body.