A gearbox has a partly toothed drive gear wheel with a toothed segment and a toothless segment on its circular peripheral surface. A driven gear is completely toothed and meshes with the toothed segment of the drive gear when it is presented to a mesh point between the gears. Pawls on the gear shafts synchronize the initiation of the mesh. The number of teeth on the drive gear is selected so that 360 degrees of rotation of the drive gear results in 360 degrees of rotation of the driven gear. As the drive gear toothless segment just reaches the mesh point, a brake on the driven gear shaft is actuated to accurately stop the motion of the driven gear shaft. The driven gear shaft is thereby halted while the drive gear is free to turn until its teeth once again reach the mesh point.

A gearbox has a partly toothed drive gear wheel with a toothed segment and a toothless segment on its circular peripheral surface. A driven gear is completely toothed and meshes with the toothed segment of the drive gear when it is presented to a mesh point between the gears. Pawls on the gear shafts synchronize the initiation of the mesh. The number of teeth on the drive gear is selected so that 360 degrees of rotation of the drive gear results in 360 degrees of rotation of the driven gear. As the drive gear toothless segment just reaches the mesh point, a brake on the driven gear shaft is actuated to accurately stop the motion of the driven gear shaft. The driven gear shaft is thereby halted while the drive gear is free to turn until its teeth once again reach the mesh point.

An intermittent drive device includes a tooth-missing gear having a tooth row partially missing, an output gear, an input gear provided with a first tooth row receiving a driving force and a second tooth row transmitting the driving force to the tooth-missing gear and arranged at a position apart from the output gear in a rotation axis direction. A shaft joint member moves in the rotation axis direction to a first position where the driving force is transmitted to the output gear and a second position where the transmission is released. A tooth-missing gear control mechanism starts rotation of the tooth-missing gear from a state where the driving force from the input gear is released and meshes with the input gear. A switching mechanism switches a position of the shaft joint member in the rotation axis direction between the first position and the second position.

An intermittent drive device includes a tooth-missing gear having a tooth row partially missing, an output gear, an input gear provided with a first tooth row receiving a driving force and a second tooth row transmitting the driving force to the tooth-missing gear and arranged at a position apart from the output gear in a rotation axis direction. A shaft joint member moves in the rotation axis direction to a first position where the driving force is transmitted to the output gear and a second position where the transmission is released. A tooth-missing gear control mechanism starts rotation of the tooth-missing gear from a state where the driving force from the input gear is released and meshes with the input gear. A switching mechanism switches a position of the shaft joint member in the rotation axis direction between the first position and the second position.

A motor includes a motor unit, a speed reduction mechanism, a motion conversion mechanism, and a housing. The motion conversion mechanism converts rotary motion of the speed reduction. mechanism into reciprocating rotary motion and transmits the motion to an output shaft. The speed reduction mechanism includes a worm, a first gear, and a second gear. The worm is disposed on a rotation shaft of the motor unit. The first gear transmits rotation of the worm and rotates about a first shaft. The second gear receives rotation of the first gear and rotates about a second shaft. The motion conversion mechanism includes a rotary member and a rod. The rotary member includes a sector gear and rotates about an axis of the first shaft. The rod couples the second gear and the rotary member. The output shaft includes an output gear that engages the sector gear.

A disclosure relates to a gear two-way clutching mechanism that is acted between the power output and the loading and mainly comprising a power source, a loading, a clutching unit and a deceleration unit. When the first output gear of the loading unit is driven by the power source to rotate to a predetermined position, the teeth missing portion is tangential with and corresponds to the buffer gear, or the wheel teeth portion meshes the buffer gear. The clutching unit connected between the power source, and the loading can perform clutch without working and enables the loading end to freely rotate, or the clutching unit can perform mesh working so that power of the power source is directly outputted to the loading end. With the deceleration unit connected to rear section and/or front section of the clutching unit, speed reduction ratio of the transmission chain connected between the power source and the loading can change to achieve effect of enhancing or changing output torque.

A disclosure relates to a gear two-way clutching mechanism that is acted between the power output and the loading and mainly comprising a power source, a loading, a clutching unit and a deceleration unit. When the first output gear of the loading unit is driven by the power source to rotate to a predetermined position, the teeth missing portion is tangential with and corresponds to the buffer gear, or the wheel teeth portion meshes the buffer gear. The clutching unit connected between the power source, and the loading can perform clutch without working and enables the loading end to freely rotate, or the clutching unit can perform mesh working so that power of the power source is directly outputted to the loading end. With the deceleration unit connected to rear section and/or front section of the clutching unit, speed reduction ratio of the transmission chain connected between the power source and the loading can change to achieve effect of enhancing or changing output torque.

A gearbox has a partly toothed drive gear wheel with a toothed segment and a toothless segment on its circular peripheral surface. A driven gear is completely toothed and meshes with the toothed segment of the drive gear when it is presented to a mesh point between the gears. Pawls on the gear shafts synchronize the initiation of the mesh. The number of teeth on the drive gear is selected so that 360 degrees of rotation of the drive gear results in 360 degrees of rotation of the driven gear. As the drive gear toothless segment just reaches the mesh point, a brake on the driven gear shaft is actuated to accurately stop the motion of the driven gear shaft. The driven gear shaft is thereby halted while the drive gear is free to turn until its teeth once again reach the mesh point.

A gearbox has a partly toothed drive gear wheel with a toothed segment and a toothless segment on its circular peripheral surface. A driven gear is completely toothed and meshes with the toothed segment of the drive gear when it is presented to a mesh point between the gears. Pawls on the gear shafts synchronize the initiation of the mesh. The number of teeth on the drive gear is selected so that 360 degrees of rotation of the drive gear results in 360 degrees of rotation of the driven gear. As the drive gear toothless segment just reaches the mesh point, a brake on the driven gear shaft is actuated to accurately stop the motion of the driven gear shaft. The driven gear shaft is thereby halted while the drive gear is free to turn until its teeth once again reach the mesh point.

Various embodiments include an actuator comprising: a drive element; a transmission section; an actuating element; a mechanically active connection from the drive element to the actuating element through the transmission section; and a reset spring providing a closing force acting on the actuating element. The transmission section includes a drive gear wheel, a transmission gear wheel, and a take-off gear wheel. The transmission gear wheel includes a drive gear section and a take-off gear section. There is a first meshed engagement from the drive gear section through a first transmission function into the drive gear wheel and a second meshed engagement from the take-off gear section through a second transmission function into the take-off gear wheel. The first transmission function and the second transmission function are different. The drive gear wheel, the drive gear section, the take-off gear section, and the take-off gear wheel are arranged in one active plane.