Abstract: A printing device has a print head, a platen roller, a main body frame supporting one of the print head and the platen roller, and a main body unit incorporating the main body frame. A sheet cutting device includes a first blade undergoing sliding movement relative to a second blade in a direction substantially orthogonal to a sheet material to be cut. A first frame slidably supports the first blade and undergoes movement in a direction orthogonal to a sliding direction of the first blade from a first position at which the first blade frame is incorporated to the main body frame to a second position at which the first blade frame is separated from the main body frame. A second frame supports the second blade and undergoes movement in the sliding direction of the first blade from a first position at which the second blade frame is mounted to the main body unit to a second position at which the second blade frame is detached from the main body unit.

Abstract: A printer with a cutter has a print head, a a platen roller, a fixed blade, and a movable blade that slides toward the fixed blade for cutting a printed recording sheet. A fixed blade holder has a first surface supporting the fixed blade thereon and a second surface curved along an outer periphery of the platen roller with a first gap therebetween for guiding the recording sheet toward a downstream side of the fixed blade holder when the recording sheet enters the first gap. A holder support pivotally supports the fixed blade holder and has a surface opposed to the outer periphery of the platen roller with a second gap therebetween for guiding the recording sheet to allow the recording sheet to be wound around the outer periphery of the platen roller when the recording sheet is guided by the second surface of the fixed blade holder.

Abstract: An infrared lens has three lens groups put in serial order from a position closer to an object, namely, the foremost or first group of lens pieces of positive refractivity, the succeeding or second group of lens pieces of negative refractivity, and the rearmost or third group of lens pieces of positive refractivity, and a substance of the second group of lens pieces having greater dispersive power than that or those of the first and third groups of lens pieces. The infrared lens assuredly retains sufficient brightness, namely, having an appropriate numerical aperture, but yet no longer suffers chromatic aberration for rays in a wavelength range of 10 ?m or so in addition to fully correcting spherical aberration, comatic aberration, and curvature of field, thereby attaining clear and vivid focused images.

Abstract: The present invention is directed to an infrared lens that ensures sufficient quantity of light incident on light receiving elements so as to produce a clear infrared picture. The infrared lens comprises a first or leading lens unit of positive refractivity closer to an object, and a trailing lens unit. The trailing lens unit consists of at least a second group of lens pieces located closer to an imaging plane than the first lens unit, and a third group of lens pieces located closer to the imaging plane than the second group of lens pieces. The trailing lens unit is displaced in any direction perpendicular to the optical axis for compensating for image vibration.

Abstract: An object of the present invention is to provide a base generator which has sensitivity and is applicable to a wide range of applications, and a photosensitive resin composition which is applicable to a wide range of applications due to the structure of a polymer precursor in which reaction into a final product is promoted by a basic substance or by heating in the presence of a basic substance. The base generator generates a base by exposure to electromagnetic radiation and heating. The photosensitive resin composition comprises a polymer precursor in which reaction into a final product is promoted by the base generator and a basic substance or by heating in the presence of a basic substance.

Abstract: A plurality of first oil passageways are recessed in an annular projected portion of a bearing cup of a cross shaft joint, each first oil passageway communicating with inner and outer periphery sides, and being increasing in groove width gradually from the outer periphery side toward the inner periphery side. A plurality of second oil passageways are recessed in the annular projected portion, and each second oil passageway is disposed between the first oil passageways, and communicates with the inner and outer periphery sides, and is decreasing in groove width gradually from the outer periphery side toward the inner periphery side. When the bearing cup is angularly moved relative to a cross shaft, grease in the first oil passageways is flowed from the outer periphery side of the annular projected portion to the inner periphery side thereof, while grease in the second oil passageways is flowed from the inner periphery side of the annular projected portion toward the inner periphery side.

Abstract: The present invention is directed to an infrared zoom lens that has one or more of its lens pieces made of chalcogenide tractable in processing such as press-molding, grinding, and the like, so as to facilitate compensating for spherical aberration that is generally hard to do, thereby producing a clear and vivid image. The infrared zoom lens has first to fourth lens elements arranged in series from the foremost position closest to the object; each of the first to fourth lens elements being of a single lens piece, and at least one of the first to fourth elements is made of chalcogenide.

Abstract: Provided is a printer capable of minimizing paper jam with a simple configuration, preventing a recording sheet from being caught around a platen roller, and quickly performing removal of the recording sheet. The printer includes: a main unit (10) including a platen roller (5); and a detachable unit (11) including a recording head (6). The main unit includes: a wall portion (130) provided on a downstream side in a feeding direction of the recording sheet with respect to the platen roller; a guide member (131) supported at an upper end of the wall portion; and a stopper portion (132) which is provided on a downstream side in a rotating direction of the platen roller with respect to the guide member, and defines, between the platen roller and the wall portion, a retention space (C) in which the recording sheet having passed through a gap between an opposed surface (131b) of the guide member and the outer peripheral surface of the platen roller is retained.

Abstract: Provided is a printer capable of reliably combining a main unit and a detachable unit with each other, performing smooth attachment/detachment operation of the detachable unit, easily achieving miniaturization, and suppressing interference with fingertips during the attachment/detachment operation, to thereby increase safety. The printer includes: a main unit (10) including opposed walls (62); and a detachable unit (11) combined with the main unit so as to be attached to/detached from the main unit freely. The detachable unit includes: an engagement pin (50) protruding along an axial line which is non-coaxial and parallel with respect to a platen shaft of a platen roller (5); and a lock pin (51) movable relative to the engagement pin. The opposed walls each include: a first recess (65) and a second recess (66) allowing the engagement pin and the lock pin to be fitted detachably therein, respectively.

Abstract: Provided is a cutter mechanism capable of performing satisfactory cutting stably with a low risk of causing cutting defects.

Abstract: Provided is a printer with a cutter, which is capable of separating a main unit and a detachable unit while a movable blade is automatically restored even when the movable blade is stopped halfway through sliding, and regulating the slide of the movable blade at a time of separation of both the units, to thereby increase safety.

Abstract: In a tapered roller bearing, LWR/DW is in the range of 1.1 to 1.7 where LWR represents a roller effective length of tapered rollers and DW represents a roller mean diameter of tapered rollers. RCO/LRO is 30 to 150, and RCI/LRI is 50 to 260 where RCO represents a crowning radius of an outer ring, LRO represents a raceway length of the outer ring, RCI represents a crowning radius of an inner ring and LRI represents a raceway length of the inner ring. The following expressions are satisfied: 20°???30°, and ??0.87??0.334?BK???0.87??0.167, where ? represents a raceway angle of the outer ring, ? represents a roller angle of the tapered rollers, and BK represents a rib angle of a large rib portion of the inner ring.

Abstract: Provided is a sound insulation structure of an internal combustion engine capable of preventing propagation of a sound generated by an injector into an interior of a vehicle. The sound insulation structure of the internal combustion engine includes a V-type cylinder block having a right bank and a left bank; a right bank intake pipe supplying a gas to the right bank; a left bank intake pipe supplying the gas to the left bank and intersecting the right bank intake pipe; in-cylinder injection injectors arranged in a surrounded space surrounded by the right and left banks and the intake pipes; and a sound insulation member arranged in the surrounded space between the in-cylinder injection injectors and an intersection region.

Abstract: Provided is a printer with a cutter, which can easily restore, even when there arises a problem that a movable blade is stopped during sliding due to paper jam or the like, the movable blade to a state before the problem arises, reliably perform positioning between a movable blade frame and a detachable unit, and improve printing accuracy and cutting accuracy. A detachable unit (4) turns in a sliding direction of a movable blade (32) from a mounted position to a dismounted position. Meanwhile, a movable blade frame (33) turns in a direction orthogonal to the sliding direction of the movable blade (32) from a home position to a separated position. Thus, the both blades (32 and 11) retreat in directions orthogonal to each other, respectively.

Abstract: an object of the present invention is to provide a printer with a cutter, which has a compact structure to allow for the reduction in size and is capable of performing printing while eliminating an unprinted area as much as possible and of easily performing recovery without wasting a recording sheet even if a paper jam occurs during the printing.

Abstract: To provide a sheet material cutting unit which can retain the posture of a sheet material when the sheet material is cut such that a movable blade can bite the sheet material with stability. A sheet material fixedly holding portion provided in parallel with a fixed blade and a sheet material movably holding portion linked with a movable blade are provided downstream from a sheet material cutting position in a sheet material transfer direction to retain a sheet material from both sides of the sheet material when the sheet material is cut.

Abstract: A sheet material cutting unit has a movable blade mounted to undergo reciprocal movement relative to a stationary blade for cutting a sheet material, and a movable blade holder that reciprocates with the movable blade. A sheet material retaining structure retains the sheet material on a sheet material transfer path during cutting of the sheet material and comprises oppositely disposed stationary and movable holding portions, with the movable holding portion being mounted on the movable blade holder for reciprocal movement therewith. A transmitting structure transmits reciprocation of the movable blade to the movable holding portion to maintain the sheet material in a sandwiched state between the movable holding portion and the stationary holding portion during cutting of the sheet material.

Abstract: According to the invention, there is provided a tapered roller bearing in which, where D represents a larger end diameter of the tapered roller and L represents a roller length thereof, the roller length L is 18 mm or smaller, and a ratio of the large end diameter and the roller length of the tapered roller which is expressed by D/L is in the range of 0.55 to 0.9. In addition, respective raceway surfaces of the outer ring and the inner ring and rolling contact surfaces of the tapered rollers are crowned, and a total crowning amount is set to be 50 ?m or larger, an outer ring crowning rate is set to be 40% or larger, and a roller crowning rate is set to be 20% or smaller.

Abstract: A tapered roller bearing according to the invention is such that the surface hardnesses of a raceway surface of an inner ring and rolling contact surfaces of tapered rollers are set to 63 to 69HRC. In addition, respective raceway surfaces of an outer ring and the inner ring and the rolling contact surfaces of the tapered rollers are crowned and are set such that a total crowning amount is 50 ?m or larger, an outer crowning rate is 40% or larger and a roller crowning rate is 20% or smalled.

Abstract: A plurality of first oil passageways are recessed in an annular projected portion of a bearing cup of a cross shaft joint, each first oil passageway communicating with inner and outer periphery sides, and being increasing in groove width gradually from the outer periphery side toward the inner periphery side. A plurality of second oil passageways are recessed in the annular projected portion, and each second oil passageway is disposed between the first oil passageways, and communicates with the inner and outer periphery sides, and is decreasing in groove width gradually from the outer periphery side toward the inner periphery side. When the bearing cup is angularly moved relative to a cross shaft, grease in the first oil passageways is flowed from the outer periphery side of the annular projected portion to the inner periphery side thereof, while grease in the second oil passageways is flowed from the inner periphery side of the annular projected portion toward the inner periphery side.