Patent application number | Description | Published |
20110079122 | DEVICE AND METHOD FOR MANUFACTURING WORK - This device includes an upper die unit, a lower die unit disposed opposite to the upper die unit. One of the upper die unit and the lower die unit includes a main punch and the other die unit includes an ejector, a slider disposed so as to be movable in a direction crossing with a vertical direction and a biasing portion which is connected to the slider and biases the slider in a predetermined sliding direction S. A cam structure is disposed between the slider and the ejector, which converts a movement of the ejector in a direction opposite to a work ejecting direction E to a movement of the slider in a direction opposite to a predetermined sliding direction when the upper die unit and the lower die unit are closed, and which converts a movement of the slider in a predetermined sliding direction to a movement of the ejector in a work ejecting direction when the upper die unit and the lower die unit are opened by a predetermined amount from the closed state. The device further comprises a position retaining portion which retains a position of the slider moved in a direction opposite to the predetermined sliding direction for a certain period of time. | 04-07-2011 |
20110252938 | PUNCH PRESS DEVICE - A punch press device has a lift that can move up and down with respect to a workpiece and a punch that is supported by the lift and can move up and down with respect to the lift. Further, the punch press device has a switching member that reciprocates between a position where the punch is constrained so that it moves down together with the lift and a position where the punch is released so that it moves up with respect to the lift. The punch press device has two electromagnetic solenoids for reciprocating the switching member. The first electromagnetic solenoid moves the switching member in a first direction, and the second electromagnetic solenoid moves the switching member in a second direction opposite to the first direction. | 10-20-2011 |
20110277939 | STAMPING-LAMINATING APPARATUS AND METHOD - Punching structures each include a die, a punch that cooperates with the die to stamp a workpiece, a die supporting member that applies lateral pressure to core pieces stamped out from the workpiece, and a counter pressure applying mechanism that applies counter pressure toward the punch to the core pieces from the side opposite to the punch. The punching structures also include selecting mechanisms, respectively. The punching structures laminate core pieces while applying lateral pressure and counter pressure to the core pieces. The punching structures are arranged along the conveyance direction of the workpiece. The selecting mechanisms select one of the punching structures to be put in a pause state, so that one of the punching structures is put in a pause state during a stamping operation of the punching structures. | 11-17-2011 |
20120216958 | ROTARY LAMINATION APPARATUS - A rotary lamination apparatus has a rotary lamination turntable rotational about a vertical axis. A plurality of workpieces are rotated and laminated on the turntable. The turntable includes a support member that is arranged on an upper surface of the turntable, a plurality of rolling bodies mounted on the upper surface of the turntable, and a plurality of urging members for urging the rolling bodies upward. The support member is formed of material having a high friction coefficient. The rolling bodies are selectively movable between an upper position and a lower position. In the upper position, at least a portion of each of the rolling bodies is located above the upper surface of the support member. In the lower position, each rolling body is located below the upper surface of the support member. In the upper position, the rolling bodies support the workpieces movably in a lateral direction. | 08-30-2012 |
20120241095 | ROTARY LAMINATION APPARATUS - A rotary lamination apparatus includes a die, a punch, a rotation drive source, a mounting table, at least one proximity sensor, and a determining device. The punch punches core pieces from a thin plate material. The rotation drive source drives and rotates the die about the central axis of the die. The mounting table is arranged in the inner space formed by the die. The core pieces are rotated and laminated on the mounting table. The proximity sensor detects whether the die is in the proximity of a predetermined position in a non-contact manner after the die has stopped rotating. The determining device determines whether the die is stopped at the predetermined position based on a detection result from the proximity sensor. | 09-27-2012 |
20120275740 | ROLLING-ELEMENT BEARING, AND METHOD AND APPARATUS FOR MANUFACTURING ROLLING-ELEMENT BEARING - A rolling-element bearing in which a rolling element is retained in each of retaining openings formed in a retainer and method for manufacturing the bearing are provided. Each retaining opening is defined by a pair of inner side faces facing each other, and a pair of inner end faces facing each other. In the manufacturing method, with a support die being brought into contact with one of the inner side faces and the inner end faces of one of the retaining openings, the outer and inner circumferential surfaces of the retainer are pressed by an outer punch and an inner punch. Accordingly, on at least one of the inner side faces and the inner end faces, a first retaining piece and a second retaining piece for preventing the rolling element from falling off are formed on the outer circumferential surface and the inner circumferential surface of the retainer, respectively. | 11-01-2012 |
20130075029 | METHOD FOR MANUFACTURING CORE OF ROTATING ELECTRICAL MACHINE - A core of a rotating electrical machine is formed by laminating core plates, which are each formed by a plurality of core pieces. According to the method for manufacturing the core, a belt-like workpiece is first conveyed intermittently in its longitudinal direction. Then, while the workpiece is in a stopped state, side edges of a core piece are punched out. At a downstream position in the conveying direction of the workpiece, the remaining edges of the core piece are cut, so that the core piece is punched out. The punched out core pieces are lined up on a support. The core plate is thus formed, and the core pieces are laminated. | 03-28-2013 |
20130134826 | LAMINATE OF METAL PLATES, CORE FOR ROTATING ELECTRICAL MACHINE, AND LAMINATING METHOD FOR LAMINATE OF METAL PLATES - A core is formed by laminating a plurality of core plates. Each of the core plates includes a joint portion for joining the core plates together in the laminated state. Each of the joint portions includes a fixing piece, a passage hole, a receiving portion, and an opening. Each of the fixing pieces is raised in the direction in which the core plates are laminated. Each of the passage holes receives the fixing piece of the corresponding adjacent one of the core plates. | 05-30-2013 |
20140352393 | FORMING DIE APPARATUS AND DIE MEMBER - A forming die apparatus includes a first die on which a die surface is formed and a second die for pressing a workpiece placed on the first die. At least one of the first die and the second die is configured by assembling a plurality of die members. Each die member has a concave side surface facing another die member. | 12-04-2014 |
20140352394 | PRESS DIE - A press die includes die blocks placed on a base and aligned in a frame. A wedge is located between the frame and one of the die blocks. The wedge produces a wedge effect of bringing the die blocks to an aligned and fixed state. A spacer is located between the base and the wedge to set the extent of the wedge effect to a predetermined level. | 12-04-2014 |
20140352395 | PRESS DIE - A press die includes block rows arranged in parallel in a frame. Each block row is formed by die blocks. The block rows include a first block row and a second block row that are adjacent to each other. A joint portion between adjacent two blocks belonging to the first block row faces a side surface of a die block belonging to the second block row. | 12-04-2014 |
20140366378 | METHOD AND APPARATUS FOR MANUFACTURING ROLLING-ELEMENT BEARING - A rolling-element bearing in which a rolling element is retained in each of retaining openings formed in a retainer and method for manufacturing the bearing are provided. Each retaining opening is defined by a pair of inner side faces facing each other, and a pair of inner end faces facing each other. In the manufacturing method, with a support die being brought into contact with one of the inner side faces and the inner end faces of one of the retaining openings, the outer and inner circumferential surfaces of the retainer are pressed by an outer punch and an inner punch. Accordingly, on at least one of the inner side faces and the inner end faces, a first retaining piece and a second retaining piece for preventing the rolling element from falling off are formed on the outer circumferential surface and the inner circumferential surface of the retainer, respectively. | 12-18-2014 |
20150135794 | PRESSING METHOD AND PRESSING DEVICE FOR FORMING PUNCHED PIECE BY PUNCHING METAL PLATE WITH DIE AND PUNCH - A punched piece is formed by punching a metal plate by a punching portion including by a die and a punch. Before the punching, a preceding process portion provided in a stage previous to the punching portion forms a projection at an inner peripheral portion of a punch area of the metal plate that faces the die. Forming the projection cancels formation of shear droop at an edge of the punched piece in forming of the punched piece by punching of the metal plate. | 05-21-2015 |
20150158075 | PRESS MOLDING MACHINE - Two press dies are formed by arranging a plurality of segments side by side to form die faces. The press dies are used to press a plate member. First and second joint portions are positioned differently between one of the press dies and the other of the press dies. | 06-11-2015 |
20150174635 | STAMPING METHOD AND STAMPING APPARATUS - A recess is formed in a plate-like workpiece. Then, an inner ejector is engaged with the recess to restrict deformation of a body portion. In this state, a flange is formed in the outer periphery of the workpiece. A processed product portion is then punched out. | 06-25-2015 |
20150202856 | ROTARY LAMINATION APPARATUS - A rotary lamination apparatus has a die assembly rotatable about an axis and a mounting table received in an axial hole extending through the die assembly. Through rotation of the die assembly, punched core pieces are mounted on the mounting table while being rotatively offset. A drive portion is employed to rotate the mounting table integrally with the die assembly about the axis of the die assembly. | 07-23-2015 |
20150236358 | SEPARATOR FOR FUEL CELL - A separator for a fuel cell includes a thin metal plate, a protrusion formed on the thin metal plate, a gas passage formed by the protrusion, and a trap that is formed by forming a recess in a wall portion of the protrusion such that the trap is provided in the gas passage to correspond to the recess. | 08-20-2015 |
20150266078 | METAL PLATE STAMPING METHOD AND STAMPING APPARATUS - A metal plate stamping method is provided for cutting a metal plate, on which a bulging portion is formed through stamping, at a cutting area that is defined in a portion other than the bulging portion. The method includes forming a bead on the opposite side of the cutting area from the bulging portion and crushing the bead prior to the cutting of the metal plate. | 09-24-2015 |
20150290692 | DEVICE FOR MOLDING AND METHOD FOR MOLDING METAL PLATE - A protruding portion is formed in a metal plate material by use of a plurality of molding tools each of which has a die and a punch. In a first step, an initial protruding portion is formed in the metal plate material by use of a first molding tool. In this step, a top of the initial protruding portion is formed to be thinner than other parts. In a second step, a sidewall of the initial protruding portion is rolled out by use of a second molding tool, and the protruding portion is formed. | 10-15-2015 |
20160006044 | SEPARATOR FOR FUEL CELL - A separator for a fuel cell includes a thin metal plate, protrusions that are formed on the metal plate to be close to each other, and gas passages formed by the protrusions. Each gas passage has a first opening corresponding to an inlet and a second opening corresponding to an outlet. The gas passages include a first gas passage, which has a relatively low pressure loss of gas flow, and a second gas passage, which has a relatively high pressure loss of gas flow. The area of the first opening of the first gas passage is set to be smaller than the area of the first opening of the second gas passage. | 01-07-2016 |
20160067756 | METAL PLATE FORMING METHOD AND FORMING DEVICE - A plurality of protruding portions is formed in a metal plate material through a plurality of steps by use of forming tools each of which includes a die and a punch. An arrangement pitch between a concave portion and a convex portion for use in forming the protruding portions in the die and the punch that are used in a post-process is made narrower than an arrangement pitch between a concave portion and a convex portion for use in forming the protruding portions in the die and the punch that are used in a pre-process. | 03-10-2016 |
Patent application number | Description | Published |
20090127891 | Roof apparatus - A roof apparatus for a vehicle includes a pair of guide rails adapted to be mounted and extending in a longitudinal direction of the vehicle along both sides of an opening provided at a vehicle roof, the pair of guide rails supporting a movable panel for opening and closing the opening and a frame extending in a width direction of the vehicle and connected with the guide rails, the frame made of a light alloy material and having a closed cross sectional shape when viewed in a direction perpendicular to a length direction thereof, the frame including a joining surface portion connected with each guide rail, an opposing surface portion opposing with the joining surface portion; and a hollow portion located between the joining surface portion and the opposing surface portion. | 05-21-2009 |
20090134672 | Drive appratus for sunroof - A sunroof driving device includes a pair of rail members adapted to be arranged at both edges of a roof opening formed in a vehicle roof in a vehicle width direction and each extending along a vehicle longitudinal direction, a slide member slidably supported by each of the rail members in a longitudinal direction therof, a supporting member connected to the slide member and supporting a movable panel opening and closing the roof opening, a cross-connecting member extending along the vehicle width direction for establishing connection between respective front ends of the rail members, a drive motor arranged at the cross-connecting member and including a rotating shaft extending along the cross-connecting member, a torque wire extending along the cross-connecting member and integrally rotating with the rotating shaft, and a torque-transmitting member rotated by the torque wire and sliding the slide member along each of the rail members. | 05-28-2009 |
20110227372 | Roof apparatus for vehicle - A roof apparatus for a vehicle includes a guide member sliding along a guide rail, a support member supporting a movable panel, a drive member driving the movable panel and the guide member, a first garnish supported by the guide rail and covering a clearance between the support member and the guide rail from an interior space of the vehicle under tilt-up and opening operations of the movable panel, a second garnish supported by the movable panel and covering the support member from the interior space, the second garnish covering the guide member under a fully closed state and the tilt-up operation of the movable panel; and a third garnish connected to the guide member or the support member and covering an opening portion between the first and second garnishes from the interior space under the tilt-up and opening operations and the fully closed state of the movable panel. | 09-22-2011 |
20130015684 | ROOF APPARATUS FOR VEHICLEAANM HATTORI; TakanoriAACI Aichi-kenAACO JPAAGP HATTORI; Takanori Aichi-ken JPAANM Hirata; TetsuyaAACI Toyota-shiAACO JPAAGP Hirata; Tetsuya Toyota-shi JP - A roof apparatus for a vehicle includes a function part which is movable along a guide rail provided at a roof portion and supports a movable panel, a drain channel extending in the vehicle width direction and movable along the guide rail, and a stopper provided at the guide rail at a rear side, wherein the stopper allows the drain channel to be in contact therewith for stopping a movement of the drain channel and the drain channel allows the function part to be in contact therewith for stopping a movement of the function part, and the drain channel includes an interposition portion including a contacting surface defined by a contact with the stopper and a contacted surface defined by a contact with the function part, and projected images of the contacting surface and the contacted surface are at least partly overlapped each other in the vehicle front/rear direction. | 01-17-2013 |