Abstract: A resin frame in which a battery cell is held includes a positioning portion and a protruding portion. The positioning portion positions the top surface of the battery cell in the up-down direction by abutting with the top surface of the battery cell. The protruding portion is provided in a bottom portion of the resin frame. The protruding portion projects in the thickness direction of the battery cell. The protruding portion includes an inclined portion inclined from the thickness direction of the battery cell.

Abstract: A lens barrier module including a substrate in which an opening is defined, sectors opening the opening when picking up an image and closing the opening when not picking up the image, and a motor provided at the substrate and driving the sectors.

Abstract: An electromagnetic actuator has a rotor and a stator around which coils are wound to face portions of an outer surface of the rotor. The stator is C-shaped, the rotor is arranged so that a rotation axis thereof is existent in a space surrounded by the stator, and both ends of the stator are respectively formed within a range from 15 to 90 degrees from a virtual base line with respect to the rotation axis serving as a center, when the virtual base line is set to run a center of the rotation axis and separate the stator into left and right.

Abstract: A lens barrier apparatus includes: swingable sectors opening and closing an opening, a swinging member swinging the sectors; and a drive portion driving the swinging member, and one ends of bias members biasing the sectors in a closing direction are provided at the sectors, the other ends of the bias members are provided at the swinging member, and when the sectors are at a closed position closing the opening, the swinging member is driven in the closing direction of the sectors against biasing forces of the bias members.

Abstract: A lens barrier module including a substrate in which an opening is defined, sectors opening the opening when picking up an image and closing the opening when not picking up the image, and a motor provided at the substrate and driving the sectors.

Abstract: A lens barrier apparatus includes: swingable sectors opening and closing an opening, a swinging member swinging the sectors; and a drive portion driving the swinging member, and one ends of bias members biasing the sectors in a closing direction are provided at the sectors, the other ends of the bias members are provided at the swinging member, and when the sectors are at a closed position closing the opening, the swinging member is driven in the closing direction of the sectors against biasing forces of the bias members.

Abstract: An electromagnetic actuator has a rotor and a stator around which coils are wound to face portions of an outer surface of the rotor. The stator is C-shaped, the rotor is arranged so that a rotation axis thereof is existent in a space surrounded by the stator, and both ends of the stator are respectively formed within a range from 15 to 90 degrees from a virtual base line with respect to the rotation axis serving as a center, when the virtual base line is set to run a center of the rotation axis and separate the stator into left and right.

Abstract: The present invention is intended to provide an economical printer which is simple in structure and uses a common tray but is capable of adapting itself to various recording media of different shapes. Adapters in which recording media can be firmly held can be selectively mounted in the tray. An adapter 24 has an oval opening 24a in which a recording medium 30 can be placed. The contour of the adapter 24 can fit into a recessed portion 23a formed in the tray 23. The recording medium 30 is firmly held in the adapter 24. When the adapter 24 is mounted in the recessed portion 23a in the tray 23, a keyway 23b and a protrusion 24b engaging the keyway 23b prevent the adapter 24 from shifting out of position; the adapter is held in the tray 23. Prints can be made in accurate positions on the recording medium 30.

Abstract: A printer is capable of stably feeding even a thin recording medium to a printing section and obtaining good print quality similar to that obtainable in the case of a thick recording medium. The printer comprises a first supply path for supplying a first recording medium, a second supply path for supplying a second recording medium thicker than the first recording medium, a printing section for printing on a recording medium supplied from the first supply path or the second supply path, and a delivery section for delivering the recording medium printed in the printing section. A guide spring member which is movable up and down is projected upstream of the printing section and in a meeting portion of the first supply path and the second supply path. This guide spring member serves to support a top surface of the first recording medium at a predetermined height.

Abstract: An impact dot printer has a print head which reciprocates back and forth in front of a rotationally driven platen to print dot matrix characters on a recording medium. The print head includes a single print hammer actuated by an electromagnetic driver. A succession of print timing signals are produced in synchronism with the rotational speed of the platen, and a home signal is generated each time the print head leaves its home position during the printing of each line. A control circuit initiates the printing of each line in response to the first print timing signal produced after generation of the home signal and controls the application of driving pulses to the electromagnetic driver so as to synchronize the actuation of the print hammer with the platen rotation.

Abstract: A cassette type ink ribbon device comprises a pair of cassette cases mountable in spaced-apart non-touching relation on a printing apparatus. An endless ink ribbon extends through the pair of cassette cases. A transfer roller and an ink roller are both rotatably mounted within one of the cassette cases and are in contact with one another to replenish ink onto the ink ribbon. A slidable tensioner is disposed within the other cassette case for applying a tensioning force to the ink ribbon. The tensioner comprises a slidable guide body having a guiding surface portion in sliding contact with the inner side of the ink ribbon, a slideway within the other cassette case for slidably supporting the guide body, and a biasing spring disposed within the other cassette case for biasing the guide body along the slideway to apply a tensioning force to the ink ribbon.

Abstract: A printing head adapted to be moved for scanning in a direction perpendicular to the direction of feed of a paper is provided with a sole printing element (printing hammer) adapted to be driven in an impacting manner by an electromagnetic driving device. A platen disposed to oppose to the printing head is provided with a plurality of projections formed on the outer peripheral surface thereof and extending substantially in parallel with the axis thereof. Each of the projections being adapted to oppose to the printing element in a crossing relation to the latter when it is brought to the position ahead of the printing element as a result of rotation of the platen. As the printing element collides with the projection while the platen is rotated, a dot is formed on the recording paper at the position of crossing between the printing element and the projection, so that various patterns such as letters, numerals, symbols, pictures and so forth are printed at a high speed by a sole printing element.

Abstract: A paper tractor for feeding paper of different widths in printers and the like comprises a rotationally driven shaft having mounted thereon a sprocket wheel which engages in perforations in a length of paper to effect lengthwise feeding of the paper in response to rotation of the sprocket wheel. The sprocket wheel is mounted on the drive shaft to undergo rotational movement therewith and is mounted on the drive shaft to undergo axial sliding movement therealong to enable axial positioning of the sprocket wheel to accommodate paper of different widths. The drive shaft has a polygonal cross-section, and the sprocket wheel has a center tubular sleeve formed of plastic and configured to be slideably inserted over the drive shaft so that rotational movement of the drive shaft is transmitted to the sprocket wheel.

Abstract: A cassette type ink ribbon device for use in printing apparatus comprises a pair of cassette cases releasably connected together by mutually engaging pawls. The connected together cassette cases contain ink and transfer rollers for inking an ink ribbon, and a tensioner for applying a tensioning force to the ink ribbon. The tensioner comprises a slidable guide body having a cavity in which the slack part of the ink ribbon is stored, and a biasing spring which biases the guide body in a direction to apply the tensioning force to the ink ribbon. Both cassette cases may have the same shape and configuration thereby simplifying manufacturing costs.

Abstract: An intermittent paper feed mechanism comprises a driving wheel rotationally driven in an intermittent manner, a driven wheel disposed opposite to and rotated by the driving wheel, a stopper means for restricting the angle of rotation of the driving wheel and a coiled return spring for biasing the driving wheel in a direction opposite to its rotational driven direction. The driving and driven wheels, the stopper means and the return spring are coaxially mounted on a common shaft. The device of the invention enables a paper on which characters are printed by a printing head to be advanced at a high accuracy in an intermittent manner without using a stepping pulse motor.