Abstract: A cam device includes a first member including a plurality of cam followers arranged in a row direction and a second member including a rotatable cam with an engaging groove, on an outer circumferential surface thereof, to be engaged with the cam followers, the second member moving relatively with respect to the first member in the row direction by rotating the cam and making the plurality of the cam followers engage successively in the engaging groove, wherein the second member includes a gear that rotates the cam by engaging with the cam, and second teeth that mesh with first teeth of the gear are provided on the outer circumferential surface of the cam.

Abstract: A main roll and a sub-roll of a sheet material feeding apparatus interpose therebetween a sheet material to intermittently feed the same to a press apparatus. A roll clearance is adjusted according to a sheet thickness by displacing the main roll up and down. A release device that temporarily releases a sheet material having been interposed by the both rolls just before the sheet material is subjected to press working by the press apparatus includes a sub-roll guide that can move up and down together with the sub-roll, a rectilinear cam, and cam followers for engagement with a cam surface of the rectilinear cam, and the release device moves the rectilinear cam axially of the sub-roll in synchronism with the operation of the press apparatus to thereby displace the sub-roll up and down through the cam followers and the sub-roll guide.

Abstract: A sheet material feeding apparatus capable of favorably guiding a sheet material to perform smooth feeding comprises a pair of rolls and first and second guide members and permits a sheet material to pass between the first guide member and the second guide member. One of the rolls has a plurality of circumferential grooves arranged between both ends of a sheet material feeding surface in an axial direction and spaced from one another in the axial direction, and the first guide member includes guide portions passing through the respective circumferential grooves and extending continuously to a downstream side from an upstream side between the pair of rolls in a sheet-material conveyance direction.

Abstract: A clamping device for clamping a rotatably supported shaft, is provided with a thin-walled sleeve arranged such that a gap is provided along a circumferential direction of the shaft. The clamping device clamps the shaft by deforming the thin-walled sleeve towards the shaft.

Abstract: A workpiece exchanging apparatus for exchanging a machined workpiece with an unmachined workpiece is provided, the workpiece exchanging apparatus including a gripping arm provided at its two longitudinal end sections with gripping sections for gripping, respectively, a machined workpiece and an unmachined workpiece, the gripping arm being able to turn around a turn axis that is positioned at a longitudinal center section of the gripping arm and being able to move linearly in the axial direction of that turn axis; a first cam mechanism for making the gripping arm turn; and a second cam mechanism for making the gripping arm linearly move.

Abstract: A machining unit that is supported on a machine tool and machines a workpiece by a revolving tool with a main spindle section being driven and rotated includes an eccentric rotational section, a tool holder, a tool revolution-radius changing mechanism, and a cutting-edge-orientation correcting mechanism. The eccentric rotational section is disposed on the main spindle section, and is rotatable about an eccentric axis that is located eccentrically at any distance in a radial direction of the main spindle section from a rotation center of the main spindle section. The tool holder is disposed on the eccentric rotational section, and supports the tool. The tool revolution-radius changing mechanism moves the tool in the radial direction, and changes the radius of the revolution of the tool by rotating the eccentric rotational section about the eccentric axis.

Abstract: A motor-fastening mechanism fastens an output shaft of a motor and an input shaft of a driven member to each other. The motor-fastening mechanism has a fastening section which fastens the output shaft of the motor and the input shaft of the driven member relatively immovably, a motor-attachment member which is attached to the motor, an engaged section which is provided on either one of the motor-attachment member and the driven member, and an engaging section which is provided on the other of the motor-attachment member and the driven member and which is engaged to the engaged section such that displacement of the output shaft in a rotating direction thereof is regulated.

Abstract: A small-sized, lightweight rotary table apparatus is provided. The rotary table apparatus has: a support rest for rotatably supporting a rotary table; and a base for turnably supporting, in a cantilever fashion, the support rest by a shaft element, which is protrudingly formed on the support rest, being inserted into a hole provided in the base. The shaft element has formed therein a hollow section for accommodating at least a portion of a drive mechanism for rotating the rotary table.

Abstract: A machining unit that is supported on a machine tool and machines a workpiece by a revolving tool with a main spindle section being driven and rotated includes an eccentric rotational section, a tool holder, a tool revolution-radius changing mechanism, and a cutting-edge-orientation correcting mechanism. The eccentric rotational section is disposed on the main spindle section, and is rotatable about an eccentric axis that is located eccentrically at any distance in a radial direction of the main spindle section from a rotation center of the main spindle section. The tool holder is disposed on the eccentric rotational section, and supports the tool. The tool revolution-radius changing mechanism moves the tool in the radial direction, and changes the radius of the revolution of the tool by rotating the eccentric rotational section about the eccentric axis.

Abstract: A material feeding apparatus has a vibration absorbing construction, in which an impulse and vibrations from a press apparatus, etc. are hard to transmit to a material feeding equipment, etc., and includes an inner housing that accommodates therein the material feeding equipment, and an outer housing connected to the inner housing through a vibration absorbing member. A vibration restricting member is provided between the housings to restrict the degree of freedom of vibrations, which are transmitted to the inner housing through the vibration absorbing member when an impulse force acts on the outer housing, only in a vertical direction. The vibration restricting member includes an upper plate member, upper and lower surfaces of which are interposed between a top wall of the outer housing and a top wall of the inner housing, and a lower plate member, upper and lower surfaces of which are interposed between a bottom wall of the outer housing and a bottom wall of the inner housing.

Abstract: A sheet material feeding apparatus capable of favorably guiding a sheet material to perform smooth feeding comprises a pair of rolls and first and second guide members and permits a sheet material to pass between the first guide member and the second guide member. One of the rolls has a plurality of circumferential grooves arranged between both ends of a sheet material feeding surface in an axial direction and spaced from one another in the axial direction, and the first guide member includes guide portions passing through the respective circumferential grooves and extending continuously to a downstream side from an upstream side between the pair of rolls in a sheet-material conveyance direction.

Abstract: A main roll and a sub-roll of a sheet material feeding apparatus interpose therebetween a sheet material to intermittently feed the same to a press apparatus. A roll clearance is adjusted according to a sheet thickness by displacing the main roll up and down. A release device that temporarily releases a sheet material having been interposed by the both rolls just before the sheet material is subjected to press working by the press apparatus includes a sub-roll guide that can move up and down together with the sub-roll, a rectilinear cam, and cam followers for engagement with a cam surface of the rectilinear cam, and the release device moves the rectilinear cam axially of the sub-roll in synchronism with the operation of the press apparatus to thereby displace the sub-roll up and down through the cam followers and the sub-roll guide.

Abstract: An inclining and rotating table apparatus is provided with a rotary table device having a driven rotating shaft driven to rotate by a first drive source, and a rotary table driven to rotate by the driven rotating shaft; a driven turning shaft for causing inclination of a table surface of the rotary table device by causing the rotary table device to turn, the driven turning shaft being driven to turn by a second drive source; and a clamping device for clamping at least one of the driven rotating shaft and the driven turning shaft.

Abstract: A product transport apparatus is provided that includes a transport section for transporting a product by oscillating; a driving section for applying oscillations to the transport section; a product supply section for storing products therein, the product supply section having an aperture for supplying the stored products to the transport section; and a supply stop section that can stop the supply of the products from the aperture by being brought close to the aperture, wherein, when the products are supplied from the product supply section to the transport section, the supply stop section moves away from the aperture and the supply stop section causes at least some of the products on the supply stop section to move toward the transport section by oscillating.

Abstract: An article carrying apparatus is capable of carrying an article efficiently and correctly. The article carrying apparatus for carrying an article, includes: a housing; an input shaft rotatably supported by the housing; an output section supported by the housing in such a manner that the output section can oscillate and reciprocate; an article carry section that oscillates and reciprocates integrally with the output section; a first cam mechanism that moves in conjunction with the input shaft and oscillates the output section, wherein the first cam mechanism includes a first cam having a cam face that maintains a contact state with the output section during reciprocation of the output section, and a contact position at which the output section and the cam face contact one another moves in the same direction as a reciprocating direction in which the output section reciprocates; and a second cam mechanism that moves in conjunction with the input shaft and reciprocates the output section.

Abstract: An epicyclic gear mechanism includes: a sun gear; a ring gear positioned outside of the sun gear, with respect to a radial direction of the sun gear; a plurality of planet gears positioned between the sun gear and the ring gear with respect to the radial direction, each of the plurality of planet gears meshing with the sun gear and the ring gear; a carrier rotatably supporting the plurality of planet gears, the carrier having a first carrier section supporting at least one planet gear of the plurality of planet gears, and a second carrier section supporting another at least one planet gear that is different from the at least one planet gear; and an adjustment member for adjusting a relative positional relationship in a circumferential direction between the first carrier section and the second carrier section.

Abstract: A lathe spindle unit is provided with: a rotatable spindle having a cam follower, and a holding section for holding a work piece; a drive source for rotatively driving the spindle; and a driven rotation shaft that has a cam and that is rotatively driven by the drive source. The driven rotation shaft rotatively drives the spindle using the cam and the cam follower.

Abstract: An article carrying apparatus is capable of inhibiting a force that acts on the apparatus due to vibration being applied to its carry section in order to carry an article. The article carrying apparatus includes: a carry section for restricting, to a circumferential direction, a carrying direction in which an article is carried; a cam mechanism to which a driving force is input from an input shaft and that is for applying a vibration to the carry section by transmitting, to the carry section, an oscillating motion having at least a circumferential direction component in the circumferential direction, wherein the vibration causes the article to be carried in the circumferential direction; and a balancer for inhibiting a force that acts on the input shaft due to the cam mechanism applying the vibration to the carry section.

Abstract: A product transport apparatus is provided that includes a transport section that oscillates in a transport direction and in a vertical direction in order to transport a product; a plurality of oscillation imparting sections including a first cam mechanism for causing the transport section to oscillate in the transport direction and a second cam mechanism for causing the transport section to oscillate in the vertical direction; and a single driving source that drives the plurality of oscillation imparting sections.

Abstract: A workpiece exchanging apparatus for exchanging a machined workpiece with an unmachined workpiece is provided, the workpiece exchanging apparatus including a gripping arm provided at its two longitudinal end sections with gripping sections for gripping, respectively, a machined workpiece and an unmachined workpiece, the gripping arm being able to turn around a turn axis that is positioned at a longitudinal center section of the gripping arm and being able to move linearly in the axial direction of that turn axis; a first cam mechanism for making the gripping arm turn; and a second cam mechanism for making the gripping arm linearly move.