Abstract: An object of the present invention is to provide a chain guide that can improve functional properties of a chain drive system. The chain guide of the present invention is attached to an engine block by a mounting bolt and slidably guides a running chain. The chain guide includes a mounting part provided with a shaft hole through which a mounting bolt is passed, and an oil jet passage for injecting lubricating oil, supplied to the shaft hole at a predetermined pressure, toward the chain.

Abstract: To provide a tensioner unit, a rocking lever, and a tensioner, which, prevent breakage of the tensioner in use for a prolonged period of time. A protruding part is provided to a rocking lever near an abutment surface for abutment with a plunger to make contact with a tensioner body. h and H satisfy the relationship of h<H, where h denotes a protruding amount of a lead part of the plunger, where the lead part means a part protruding from the plunger bore, from a tip end surface on an opened side of the tensioner body in a state where the plunger sits on a bottom of the plunger bore, and H denotes an interval between the abutment surface of the rocking lever and the tip end surface of the tensioner body when the protruding part is brought into contact with the tensioner body.

Abstract: An object of the present invention is to provide a chain tensioner that can prevent breakage or deformation of its components during transport or storage, prevent wrong assembly, and increase the degree of design freedom. The chain tensioner includes a guide lever supported pivotably on an arm part that is provided to a tensioner body. The tensioner body has a body-side fixing pin hole positioned for a stopper pin to pass through without extending through the plunger. The guide lever has a lever-side fixing pin hole that comes to be coaxial with the body-side fixing pin hole in a predetermined pivoting position.

Abstract: An object of the present invention is to provide a chain guide that can improve functional properties of a chain drive system. The chain guide of the present invention is attached to an engine block by a mounting bolt and slidably guides a running chain. The chain guide includes a mounting part provided with a shaft hole through which a mounting bolt is passed, and an oil jet passage for injecting lubricating oil, supplied to the shaft hole at a predetermined pressure, toward the chain.

Abstract: To provide a tensioner unit, a rocking lever, and a tensioner, which, prevent breakage of the tensioner in use for a prolonged period of time. A protruding part is provided to a rocking lever near an abutment surface for abutment with a plunger to make contact with a tensioner body. h and H satisfy the relationship of h<H, where h denotes a protruding amount of a lead part of the plunger, where the lead part means a part protruding from the plunger bore, from a tip end surface on an opened side of the tensioner body in a state where the plunger sits on a bottom of the plunger bore, and H denotes an interval between the abutment surface of the rocking lever and the tip end surface of the tensioner body when the protruding part is brought into contact with the tensioner body.

Abstract: An object of the present invention is to provide a chain tensioner that can prevent breakage or deformation of its components during transport or storage, prevent wrong assembly, and increase the degree of design freedom. The chain tensioner includes a guide lever supported pivotably on an arm part that is provided to a tensioner body. The tensioner body has a body-side fixing pin hole positioned for a stopper pin to pass through without extending through the plunger. The guide lever has a lever-side fixing pin hole that comes to be coaxial with the body-side fixing pin hole in a predetermined pivoting position.

Abstract: A stationary guide for an engine timing chain is mounted by engagement of two longitudinally space mounting holes with two pins protruding from an engine block. At least one of the holes is formed with a stop wall positioned to prevent improper reverse mounting of the guide. The stop wall can be positioned to allow an amount of lateral sliding of the stationary guide, or can be positioned so that its abutment with the end of a mounting pin positions the guide in proper alignment with the normal path of travel of the timing chain.

Abstract: A stationary guide for an engine timing chain is mounted by engagement of two longitudinally space mounting holes with two pins protruding from an engine block. At least one of the holes is formed with a stop wall positioned to prevent improper reverse mounting of the guide, and preferably positioned so that its abutment with the end of a mounting pin positions the guide in proper alignment with the normal path of travel of the timing chain.

Abstract: To provide a print character selector of a printer and assembling method of operating member of the print character selector which configures both the axial direction regulation mechanism for the indexing regulation of the selector wheel 6 and the rotational direction regulating mechanism for the selection regulation of the print character of the endless print band 8 at the knob shaft 16. The print character selector includes a plurality of regulating recesses at a periphery of the knob shaft of the operating member (5) both in axial and rotational directions of the shaft. An urging member for regulation engages and disengages from the regulating recesses. A plurality of regulating recesses (16A) capable of selecting any one of the selector wheels (6) by moving the knob (15) along the axial direction, and configured for selecting any one of the print characters by rotating the knob around the axial direction are provided on the knob shaft.

Abstract: A label affixing machine having a core holding mechanism in which the core holding mechanism is provided in a label-protecting cover body provided openably about a main body housing of the label affixing machine. By rotating the label-protecting cover body, a label roll held by the core holding mechanism can be accommodated within the main body housing of the label affixing machine, a label core support shaft is operable to emerge from and descending into the main body housing in accordance with opening and closing operations of the label-protecting cover body. A fall preventing member slidably supports a side face of the label roll on the core holding mechanism.