摘要:
A method of forming a fracture start portion of a con rod for forming fracture start portions of a con rod at opposing positions in an inner peripheral surface of a large end of the con rod made of metal, includes a first step of forming a groove portion at a position corresponding to the fracture start portion by using a first insert tip with a large tip end and a second step of forming the fracture start portion, which has become a V-shaped groove, by machining a bottom portion of the groove portion smaller by using a second insert tip having a tip end smaller than the first insert tip.
摘要:
A stator assembly having a windage cover for structure adjacent to a cavity bounded by rotating elements in a rotary machine is disclosed. Various construction details are developed for damping vibrations in the windage cover as the windage cover bounds a cavity having swirling high velocity gases that are capable of transmitting acoustic energy and kinetic energy to adjacent structure. In one detailed embodiment, the windage cover in the uninstalled condition has diverging arms that are resiliently compressed during installation to exert a frictional force on the adjacent structure.
摘要:
A padlock includes a lock body, a shackle, and a sleeve. The lock body includes opposed front and rear longitudinally extending side walls terminating at first and second end portions. The shackle extends from the first end portion of the lock body. The sleeve covers at least a portion of each of the longitudinally extending side walls, and an internal surface of the sleeve includes at least one longitudinally extending rib contacting at least one of the front and rear longitudinally extending side walls to define a gap between the sleeve and the lock body.
摘要:
A method is provided for processing a product formed by a punch press. The method includes leaving a micro joint connecting a workpiece to a raw material forming the product when forming a slit in the workpiece along an outer shape of the raw material. The method also includes forming the product by bending a bending process portion downward on the basis of a cooperation of an upper metal mold and a lower metal mold. The method further includes dropping the product by separating the connection between the product and the workpiece by the micro joint.
摘要:
A tuning fork vibrator includes a long plate-shaped vibration unit having a first principal surface and a second principal surface, a base disposed at one end of the second principal surface of the vibration unit in the longitudinal direction, and a slit for dividing the vibration unit into two legs defining a tuning fork along the longitudinal direction symmetrically in the width direction of the vibration unit. The slit is formed so as to include a portion of the base in the vicinity to the vibration unit.
摘要:
A tuning fork vibrator includes a long plate-shaped vibration unit having a first principal surface and a second principal surface, a base disposed at one end of the second principal surface of the vibration unit in the longitudinal direction, and a slit for dividing the vibration unit into two legs defining a tuning fork along the longitudinal direction symmetrically in the width direction of the vibration unit. The slit is formed so as to include a portion of the base in the vicinity to the vibration unit.
摘要:
A tuning fork vibrator includes a long plate-shaped vibration unit having a first principal surface and a second principal surface, a base disposed at one end of the second principal surface of the vibration unit in the longitudinal direction, and a slit for dividing the vibration unit into two legs defining a tuning fork along the longitudinal direction symmetrically in the width direction of the vibration unit. The slit is formed so as to include a portion of the base in the vicinity to the vibration unit.
摘要:
The invention concerns a drip irrigation conduits (1) comprising a tube (2) designed to be connected to a pressurised water source. The tube is provided with two lateral lips (3a, 3b) superposed on each other and are formed integral with said tube. The conduit (1) further comprises, at intervals, flow cavities allowing water to trickle through (11) communicating the tube (2) inside with outside environment. The invention is characterised in that a strip (4) is fixed in sealed manner between the lips (3a, 3b), and the cavities. (11) are produced in said strip (4) by stamping said strip (10, 10A) so that they constitute through cavities substantially on either side of a longitudinal plane of symmetry (P) on the strip (10, 10A), each flow cavity (11, 11A) comprising at one first end a feed chamber (13) designed to emerge into one of said conducts and at the other end a discharge chamber (14) designed to emerge outside said one conduit; the stamping process being also designed so that the discharge chambers of the flow cavities located substantially on either side of the plane of symmetry (P) of the strip do not communicate with each other.
摘要:
A back plate having a stationary back electrode is secured to a substrate. A diaphragm electrode is mounted on the back plate interposing a spacer. A frame having a sound collecting hole is mounted on the diaphragm electrode.
摘要:
A method for fabricating muntin grid pieces includes steps that attach a pair of material strips to opposed edges of the muntin bar element. The material strips may be provided in side-by-side strips that may be separated an simultaneously applied to the opposite sides of the muntin bar element. The connection between the material strips and the muntin bar element may be made with an adhesive or a mechanical connection. The method allows the material strips to be connected to the muntin grid pieces before the muntin grid pieces are assembled into a muntin bar grid for a window.