115results about How to "Increased buckling strength" patented technology

Seaming apparatus and method for seaming ends to cans are described. The seaming apparatus includes a seaming chuck received by the can end. The chuck includes an anvil portion and a peripheral upper anvil wall. The upper anvil wall is inclined at an angle α of greater than or equal to 6 degrees. The seaming apparatus also includes a seaming roll having a seaming surface for engaging the peripheral curl of the can end in a seaming operation to compress the peripheral curl against the peripheral flange and the peripheral upper anvil wall of the seaming chuck. The seaming surface of the seaming roll is inclined relative to the longitudinal axis by an angle β. The value of β is selected to be greater than about 4 degrees, and more preferably from between about 8 and about 14 degrees. Additionally, the value of β bears a close approximate relationship to the value of α, and in particular the value of angle β=α±up to about 4 degrees.

A bumper reinforcement includes a front wall portion, an upper wall portion, and a lower wall portion. The front wall portion constitutes the front portion of the bumper reinforcement. The upper wall portion constitutes the upper half of the rear portion of the bumper reinforcement. The lower wall portion, connected to the lower edge of the front wall portion, constitutes the lower half of the rear portion. Outer grooves, formed by denting the front wall portion rearward, extend along the vehicle width direction. Upper grooves, formed by denting downward a top wall of the upper wall portion, are located intermittently along the width direction and extend in the longitudinal direction. The lower wall portion comprises a bottom wall constituting the bottom of the lower wall portion. Lower grooves, formed by denting the lower wall portion upward, are located intermittently along the width direction and extend in the longitudinal direction.

There is provided a lifting engagement chain unit that autonomously erects a pair of engagement chains, ensures engagement accuracy between link plates and improves buckling strength. A plurality of buckling restricting attachment plates is arrayed along an outer surface of the engagement chains in a chain longitudinal direction.

The invention provides a pair of engagement chains which has inner tooth plates, bushes, outer tooth plates and connecting pins and is integrated by engaging hook portions of the inner tooth plates and hook portions of the outer tooth plates and is branched by disengaging the hook portions of the inner tooth plates and the hook portions of the outer tooth plates. The pair of engagement chains further includes inflection restricted plates having inflection restricted surfaces and inflection restricting plates having inflection restricting portions that are connected on the both ends of the connecting pins.

The invention provides a diaphragm. The diaphragm comprises a vibration part and a support part connected with the vibration part, wherein the support part stretches from the periphery of the vibration part to the direction which is away from the center of the diaphragm, and is provided with a first surface, a second surface opposite to the first surface, and a side wall which connects the first surface with the second surface; the side wall comprises a first side wall and a second side wall opposite to the first side wall; the first side wall and the second side wall are vertical to the connecting faces of the vibration part and the support part respectively; the support part comprises a first groove with a first opening and a second groove with a second opening; the first groove stretches from the second side wall to the first side wall; the first opening is formed on the first side wall; the second groove stretches from the first side wall to the second side wall; the second opening is formed on the second side wall; and the first side wall and the second side wall are crossed oppositely. The diaphragm can reduce stress gradient caused by the high stress of other structural layers to a film.

The invention provides an engagement chain in which a buckling strength of a pair of engagement chains engaged with each other is improved without blocking engagement operations between inner tooth plates and between outer tooth plates, the operation burden applied during the plate shaping of inner tooth plates and outer tooth plates is reduced, and the chain state of the pair of intermeshed engagement chains can be reliably held even when it is used in the drive device taking the ceiling surface as the setting surface or the drive device taking the perpendicular wall surface as the setting surface. The chain includes inner tooth plates, bushes, outer tooth plates and connecting pins. Buckling limiting flat surfaces of adjoining plates are brought into surface contact with each other whenopposing segments of the chain are integrated together by driving sockets.