Abstract: A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, wherein: the coating layer comprises at least one ?-type aluminum oxide layer; and, in the ?-type aluminum oxide layer, a texture coefficient TC (0,0,12) of a (0,0,12) plane is from 4.0 or more to 8.4 or less, and a texture coefficient TC (1,0,16) of a (1,0,16) plane is from 0.4 or more to 3.0 or less.

Abstract: The coated tool has a substrate and a coating layer. The coating layer contains alternating first and second laminated structures. The first laminated structure contains at least two kinds of alternating layers having different compositions. An average thickness of the layers contained in the first laminated structure is 60 nm or more and 500 nm or less. The second laminated structure contains at least two kinds of alternating layers having different compositions. An average thickness of the layers contained in the second laminated structure is 2 nm or more and less than 60 nm. The layers contained in the first laminated structure and the second laminated structure contain a compound having one or more specific metals and at least one or more of carbon, nitrogen, oxygen and boron. Average thickness(es) of the first and second laminated structure is/are continuously or stepwisely increased in a direction away from the substrate.

Abstract: A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate is provided, the coating layer including an alternating laminate structure in which two or more compound layers of each of two or three or more kinds, each kind having a different composition, are laminated in an alternating manner, wherein: the alternating laminate structure is constituted by: a compound layer containing a compound having a composition represented by (TixM1-x)N [wherein M denotes an element of at least one kind selected from the group consisting of Zr, Hf, V, Nb, Ta, Cr, Mo, W, Al and Si, x denotes an atomic ratio of Ti based on a total of Ti and an element denoted by M, and x satisfies 0.57?x?0.

Abstract: A tool having a cutting edge that includes a sintered body containing cubic boron nitride. The sintered body integrally and inseparably includes an inner region and a binder phase enriched layer formed on at least part of a surface of the inner region. The inner region includes: 15-90 volume % of cubic boron nitride; and 10-85 volume % of a mixture of a binder phase and impurities. The binder phase enriched layer includes: 90-100 volume % of the binder phase and impurities mixture; and 0-10 volume % of cubic boron nitride; and the binder phase contains at least one kind selected from the group consisting of: at least one element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Al, Co, Ni and Si; and a compound of the element and at least one element selected from the group consisting of C, N, O and B.

Abstract: A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, wherein: the coating layer comprises at least one ?-type aluminum oxide layer; and, in the ?-type aluminum oxide layer, a texture coefficient TC (0,0,12) of a (0,0,12) plane is from 4.0 or more to 8.4 or less, and a texture coefficient TC (1,2,11) of a (1,2,11) plane is from 0.5 or more to 3.0 or less.

Abstract: A paper conveying device includes: a roller shaft having a first engaging portion and configured to rotate integrally with the first engaging portion; and a roller unit having a second engaging portion and provided on the roller shaft, the roller unit being configured to convey a sheet of paper as the roller unit rotates while being in contact with the sheet of paper. In an engaged state where the first engaging portion and the second engaging portion engage with each other, the roller unit is restricted from moving in an axis direction relative to the roller shaft. In a disengaged state where the first engaging portion and the second engaging portion disengage from each other, the roller unit is movable in the axis direction relative to the roller shaft.

Abstract: A coated cutting tool comprising a substrate and a coating layer provided on a surface of the substrate, wherein: the coating layer comprises at least one ?-type aluminum oxide layer; and a texture coefficient TC (0,0,12) of a (0,0,12) plane of the ?-type aluminum oxide layer is from 4.0 or more to 8.4 or less; and a texture coefficient TC (1,0,10) of a (1,0,10) plane thereof is from 0.4 or more to 3.0 or less.

Abstract: A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, wherein: the coating layer comprises at least one ?-type aluminum oxide layer; and, in the ?-type aluminum oxide layer, a texture coefficient TC (0,0,12) of a (0,0,12) plane is from 4.0 or more to 8.4 or less, and a texture coefficient TC (0,1,8) of a (0,1,8) plane is from 0.5 or more to 3.0 or less.

Abstract: A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, wherein: the coating layer comprises at least one ?-type aluminum oxide layer; and, in the ?-type aluminum oxide layer, a texture coefficient TC (0,0,12) of a (0,0,12) plane is from 4.0 or more to 8.4 or less, and a texture coefficient TC (1,1,9) of a (1,1,9) plane is from 0.5 or more to 3.0 or less.

Abstract: A coated tool includes a substrate and a coating layer having a plurality of first laminated structures alternated with a plurality of second laminated structures. Each of the first laminated structures and each of the second laminated structures contains at least two kinds of layers having different composition and alternately laminated twice or more. An average thickness of the layers contained in the first laminated structure is between 60 nm and 500 nm, while an average thickness of the layers contained in the second laminated structure is between 2 nm and 60 nm. Each of the layers within the laminated structures include at least one metal element and at least one non-metal element selected from among carbon, nitrogen, oxygen and boron. An average thickness of the first laminated structure and/or the second laminated structure decreases with increasing distance from the substrate.

Abstract: A paper conveying device includes: a roller shaft having a first engaging portion and configured to rotate integrally with the first engaging portion; and a roller unit having a second engaging portion and provided on the roller shaft, the roller unit being configured to convey a sheet of paper as the roller unit rotates while being in contact with the sheet of paper. In an engaged state where the first engaging portion and the second engaging portion engage with each other, the roller unit is restricted from moving in an axis direction relative to the roller shaft. In a disengaged state where the first engaging portion and the second engaging portion disengage from each other, the roller unit is movable in the axis direction relative to the roller shaft.

Abstract: Provided is a coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate. The coating layer includes an alternating laminate structure of an alternating laminate of: a first composite nitride layer including a compound having a composition represented by (TixAl1-x)N (wherein x denotes an atomic ratio of the Ti element based on a total of the Ti element and the Al element and satisfies 0.10?x?0.35); and a second composite nitride layer including a compound having a composition represented by (TiyAlzM1-y-z)N (wherein: M denotes an element of at least one kind selected from Zr, Hf, V, Nb, Ta, Cr, Mo, W, Si and Y; y satisfies 0.30?y?0.90; z satisfies 0.10?z?0.70; and y and z satisfy y+z?1). The first composite nitride layer includes a phase having a lattice constant of from 0.400 nm or more to 0.430 nm or less and a phase having a lattice constant of from 0.755 nm or more to 0.810 nm or less.

Abstract: A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate, the coating layer including an alternating laminate structure in which two or more compound layers of each of two or three or more kinds, each kind having a different composition, are laminated in an alternating manner, wherein: the alternating laminate structure is constituted by: a compound layer containing a compound having a composition represented by formula (1) below: (TixMySiz)N??(1) [wherein M denotes an element of at least one kind selected from the group consisting of Zr, Hf, V, Nb, Ta, Cr, Mo, W and Al, x denotes an atomic ratio of Ti based on a total of Ti, an element denoted by M and Si, y denotes an atomic ratio of the element denoted by M based on a total of Ti, the element denoted by M and Si, z denotes an atomic ratio of Si based on a total of Ti, the element denoted by M and Si, x satisfies 0.20?x?0.50, y satisfies 0.20?y?0.50, z satisfies 0.03?z?0.

Abstract: A cBN sintered body has 40%-85% cBN by volume and 15% to 60% binder phase by volume. and inevitable impurities. The binder phase has an Al compound including Al and at least one element selected from N, O and B, and a Zr compound including Zr and at least one element selected from C, N, O and B. The Zr compound includes ZrO, or ZrO and ZrO2. In an X-ray diffraction, where a peak intensity of a (111) plane of the ZrO is I1, a peak intensity of a (101) plane of tetragonal ZrO2 is I2t and a peak intensity of a (111) plane of cubic ZrO2 is I2c, a ratio of the intensity of I1 to total intensities of I1, I2t and I2c is 0.6-1.0, and an average grain size of the Al compound is 80 nm-300 nm.

Abstract: A coated cutting tool comprising a substrate and a coating layer formed on a surface of the substrate is provided, the coating layer including an alternating laminate structure in which two or more compound layers of each of two or three or more kinds, each kind having a different composition, are laminated in an alternating manner, wherein: the alternating laminate structure is constituted by: a compound layer containing a compound having a composition represented by (TixM1-x)N [wherein M denotes an element of at least one kind selected from the group consisting of Zr, Hf, V, Nb, Ta, Cr, Mo, W, Al and Si, x denotes an atomic ratio of Ti based on a total of Ti and an element denoted by M, and x satisfies 0.57?x?0.

Abstract: A coated tool includes a substrate and a coating layer having a plurality of first laminated structures alternated with a plurality of second laminated structures. Each of the first laminated structures and each of the second laminated structures contains at least two kinds of layers having different composition and alternately laminated twice or more. An average thickness of the layers contained in the first laminated structure is between 60 nm and 500 nm, while an average thickness of the layers contained in the second laminated structure is between 2 nm and 60 nm. Each of the layers within the laminated structures include at least one metal element and at least one non-metal element selected from among carbon, nitrogen, oxygen and boron. An average thickness of the first laminated structure and/or the second laminated structure decreases with increasing distance from the substrate.

Abstract: A cBN sintered body has 40%-85% cBN by volume and 15% to 60% binder phase by volume. and inevitable impurities. The binder phase has an Al compound including Al and at least one element selected from N, O and B, and a Zr compound including Zr and at least one element selected from C, N, O and B. The Zr compound includes ZrO, or ZrO and ZrO2. In an X-ray diffraction, where a peak intensity of a (111) plane of the ZrO is I1, a peak intensity of a (101) plane of tetragonal ZrO2 is I2t and a peak intensity of a (111) plane of cubic ZrO2 is I2c, a ratio of the intensity of I1 to total intensities of I1, I2t and I2c is 0.6-1.0, and an average grain size of the Al compound is 80 nm-300 nm.

Abstract: A post-processing device performs a first and a second folding processes on a sheet. The post-processing device comprises a pair of conveying rollers on a first conveying path, a first pair of folding rollers at a downstream side of the pair of conveying rollers on the first conveying path to perform a second folding process on the sheet, a second pair of folding rollers on a second conveying path branched from the first conveying path between the pair of conveying rollers and the first pair of folding rollers, to perform a first folding process on the sheet, and a guide at a closure position which shuts the first conveying path, to guide the sheet conveyed from the pair of conveying rollers to the first pair of folding rollers.

Abstract: A paper folding apparatus includes: a pair of folding rollers driven in a rotational manner; a carrying roller configured to carry paper in such a manner that the paper passes near a nip part of the pair of folding rollers; a unit configured to form, near the nip part, deflection of the paper carried by the carrying roller toward the nip part; a pushing member which is configured to push the paper, which is carried by the carrying roller, toward the nip part of the folding rollers, the pushing member being provided in a manner movable from a position retracted from a carrying path of the paper toward the nip part; a drive unit configured to generate driving force to move the pushing member; and an elastic member configured to transmit the driving force from the drive unit to the pushing member.

Abstract: A coated cutting tool has a base material of a WC-based cemented carbide and a film formed on the surface of the base material by a chemical vapor deposition method. The coated cutting tool has a rake face, a flank face and a cutting edge ridgeline part positioned between the rake face and the flank face being provided, wherein a total film thickness of the entire film is 3 to 20 ?m in an average film thickness, and one or more oblique cracks where an extension angle of the crack to the surface of the film is 45° or less are present at the rake face within 300 ?m from the cutting edge ridgeline part.