Abstract: An ink-jet printer is provided and includes: a motor, generating a driving force that prompts an ink-jet head moving in a main scanning direction relative to a print object; a motor, generating a driving force by which the ink-jet head is moved; a motor pulley, being rotated by the driving force generated by the motor; a first belt wound around the motor pulley to transmit the driving force from the motor pulley toward the ink-jet head; and a decelerating pulley on which the first belt is wound around to be rotated by the driving force transmitted on the first belt. At least one of a group of motor-side teeth of the motor pulley and belt-side teeth of the first belt and a group of deceleration-side teeth of the decelerating pulley and the belt-side teeth of the first belt is a combination of intermeshable spur gear teeth and helical gear teeth.

Abstract: An ink-jet printer is provided and includes: a motor, generating a driving force that prompts an ink-jet head moving in a main scanning direction relative to a print object; a motor, generating a driving force by which the ink-jet head is moved; a motor pulley, being rotated by the driving force generated by the motor; a first belt wound around the motor pulley to transmit the driving force from the motor pulley toward the ink-jet head; and a decelerating pulley on which the first belt is wound around to be rotated by the driving force transmitted on the first belt. At least one of a group of motor-side teeth of the motor pulley and belt-side teeth of the first belt and a group of deceleration-side teeth of the decelerating pulley and the belt-side teeth of the first belt is a combination of intermeshable spur gear teeth and helical gear teeth.

Abstract: It aims to provide an inkjet printer and a printing method that appropriately performs printing with high accuracy on print objects having various shapes. As a solution therefor, an inkjet printer is configured to perform printing using an inkjet scheme on a print object and includes an inkjet head that discharges ink droplets, a guide rail that retains the inkjet head by making the inkjet head face the print object and that is a Y direction extending member extending in a predeterminedly set Y direction, and an X direction driving section that moves the guide rail in an X direction and upon printing, the inkjet head moves along the guide rail and discharges ink droplets toward the print object, and the X direction driving section includes a ball screw and moves the guide rail in the X direction in accordance with a rotation amount of the ball screw.

Abstract: It aims to provide an inkjet printer and a printing method that appropriately performs printing with high accuracy on print objects having various shapes. As a solution therefor, an inkjet printer is configured to perform printing using an inkjet scheme on a print object and includes an inkjet head that discharges ink droplets, a guide rail that retains the inkjet head by making the inkjet head face the print object and that is a Y direction extending member extending in a predeterminedly set Y direction, and an X direction driving section that moves the guide rail in an X direction and upon printing, the inkjet head moves along the guide rail and discharges ink droplets toward the print object, and the X direction driving section includes a ball screw and moves the guide rail in the X direction in accordance with a rotation amount of the ball screw.

Abstract: A device for controlling the amplitude of a swinging body. The device accurately controls the drive thereof in response to the load the swinging body carries even if it carries infants of different weights.

Abstract: A rocking seat control apparatus for a moveable seat supported and having a magnetic member attached thereto is provided that is capable of maintaining the seat being rocked constant in rocking amplitude. The apparatus includes a solenoid for bi-directionally attracting the magnetic member to cause the seat to move in a positive and a negative direction alternately and thereby to be rocked; an amplitude measuring means for measuring an amplitude of the seat being rocked and a rocking motion of the seat; an amplitude damping factor measuring means responsive to displacements in the positive and negative directions of the seat being rocked for measuring an extent of damping factor of the amplitude caused while the seat is being rocked; and a solenoid energizing means for energizing the solenoid means during a time period in which the seat is being rock traveling a distance that is a product of the measured rocking swing and the measured extent of damping factor of amplitude.

Abstract: To provide a swing control device of a swinging body capable of accurately controlling the drive thereof in response to the load the swinging body carries even if it carries infants of different weights, and realizing a desired swing by providing a sensor portion which generates first and second pulse signals having different phases in response to the swing and a control circuit which obtains sensor data based on the first pulse signal and the second pulse signal, decodes data patterns set in advance which corresponds to a combination of the sensor data, judges a swing direction or a change thereof from a changed pattern of the continuous data pattern, reads a target value (pulse count number) set in advance to compare or the like with the pulse count number of the present, the previous, and the one before the previous to obtain a pulse width for driving at the next timing, and outputs a drive pulse of the obtained pulse width to a drive circuit so that driving can be performed in accordance with the expected

Abstract: A rocking seat control apparatus for a moveable seat supported and having a magnetic member attached thereto is provided that is capable of maintaining the seat being rocked constant in rocking amplitude. The apparatus includes a solenoid for bi-directionally attracting the magnetic member to cause the seat to move in a positive and a negative direction alternately and thereby to be rocked; an amplitude measuring means for measuring an amplitude of the seat being rocked and a rocking motion of the seat; an amplitude damping factor measuring means responsive to displacements in the positive and negative directions of the seat being rocked for measuring an extent of damping factor of the amplitude caused while the seat is being rocked; and a solenoid energizing means for energizing the solenoid means during a time period in which the seat is being rock traveling a distance that is a product of the measured rocking swing and the measured extent of damping factor of amplitude.