TH20342B - Printing equipment - Google Patents

Abstract

DC60 (05/01/41) The objective is to provide a printing device in which the rotation of the tipless printing bar is restricted in such a way that excessive rotational force is not applied to the tipless printing bar itself, thereby avoiding wear, breakage, and other damage; and in which the forceful rotation of the tipless printing bar results in the free-rotating of the selector wheel 5 and applies only a moderate load to the tipless printing bar. Attention is focused on the implementation of a component to limit the rotation of the selector wheel 5 of the sliding type and to allow the sliding stop assembly 14 to slide when excessive force is applied to the selector wheel 5 or the tipless printing bar 5. A bearing assembly for the stop 15 is provided to brace against the flexible section 14B of the sliding stop assembly 14 and the overlap between the driving extension 7E and the moving flexible section 14B. The rotation of the endless printing bar 7 will allow the sliding stop assembly 14 to move. In the drawings Figures 3, 13, and 14, the direction of rotation is shown. Figures 4 and 8 show the direction of rotation. The purpose is to provide a printing device in which the rotation of the endless printing bar is limited in such a way that excessive rotational force is not applied to the endless printing bar 7 itself, thereby avoiding wear, breakage, and other damage. The forceful rotation of the endless printing bar will cause the wheel of the selector 5 to rotate freely, and will apply only a moderate load to the endless printing bar. Attention is focused on the implementation of a component to limit the rotation of the wheel of the selector 5 of the sliding type and to allow the sliding stop assembly 14 to move when excessive force is applied to the wheel of the selector 5 or the endless printing bar 5. A bearing assembly for stopping 15 is provided. To brace against the flexible section 14B of the sliding stop assembly 14, and the overlap between the drive extension 7E and the flexible section 14B with movement of the tipless print bar 7 will allow the sliding stop assembly 14 to move.

Claims (14)

1. A printing device, which has at least one endless printing bar, constructed on its outer surface with multiple type characters and display characters, and wrapped around the wheel of the selecting device and the bearing assembly section, and an opening for selecting the desired type of the endless printing bar; a sliding stop assembly, which is provided between the wheel of the selecting device and the bearing assembly section of the type, and has one end constructed with at least one control hub for interlocking with the wheel of the selecting device, and is provided at the other end constructed with a flexible section containing at least one interlocking part; a stop bearing assembly to limit the movement of the sliding stop assembly by bracing on the flexible section of the sliding stop assembly; and at least one driving projection, which is provided on the inner surface of the endless printing bar to interlock with the interlocking part of the flexible section of the sliding stop assembly, the interlocking between the driving projection and the interlocking part of the endless printing bar. This causes movement of the sliding stop assembly to allow for the release of the overlap between the selected device wheel and the control hub section. 2. A printing device as specified in Claim 1, which is further incorporated with guide grooves for stops, for guiding the movable stop assembly in the direction of its movement. 3. A printing device as specified in Claim 1, where the flexible section has a spring section for fork-shaped engagement. 4. Printing equipment as specified in Claim 1, where the stop bearing assembly has an inclined surface for support of flexible sections. 5. The printing device as specified in Claim 1, where the inner perimeter surface of the stylus for stylus printing shall be made to have at least one pusher projection opposite the output character and flattened opposite the type character. 6. The printing device as specified in Claim 1, whereby the outer perimeter surface of the stylus is made to have at least one blank section without type, and the inner perimeter surface opposite to at least one adjacent character to the side of that blank section in the direction of rotation is made to be a flat section. 7. The printing device as specified in Claim 1, which is further comprised of a cam assembly with adjustable rotational position, shall be arranged within the tipless printing bar to rotate inward and outward from contact with the surrounding inner surfaces of the tipless printing bar. 8. Printing equipment as specified in claim 7, where the cam assembly has a rotating shaft for adjusting the cam and an adjustment arm perpendicular to the rotating shaft for adjusting the cam. 9. The printing device as specified in claim 7, which is further comprised of a printing frame on which the wheels of the selected device and sections of the type bearing assembly are arranged; such printing frame has adjustment groove sections that allow for adjustment of the rotational position of the cam assembly. 10. Printing equipment as specified in claim 7, where the cam components have an elliptical cross-section. 11. A printing device which has at least one endless printing bar constructed on its outer surface with multiple type characters and display characters and is wrapped around the selector wheel and section of the type bearing assembly and allows for the selection of the desired type on the endless printing bar. A stop assembly is provided between the selector wheel and the section of the type bearing assembly and at least one driving projection is provided on the inner side surface of the endless printing bar to overlap the stop assembly. The overlap between the driving projection and the stop assembly causes movement of the endless printing bar, creating slack in the endless printing bar to allow for the free rotation of the selector wheel. A cam assembly is located within the endless printing bar; this cam assembly has an adjustable rotational position within the endless printing bar to rotate inward and outward from contact with the inner side surface of the endless printing bar. 12. Printing equipment as specified in claim 11, where the cam components have an elliptical cross-section. 13. Printing equipment as specified in claim 11, where the cam assembly has a rotating shaft for adjusting the cam and an adjustment arm perpendicular to the rotating shaft for adjusting the cam. 14. The printing equipment as specified in Claim 11, which is further comprised of a printing frame on which the wheels of the selected device and sections of the type bearing assembly are built, the printing frame is constructed with adjustment groove sections that allow for adjustment of the rotational position of the cam assembly.