Abstract: A rubber stopper configured to be mounted onto a stopper part of a vibration damping device having a mounting hole, including: a stopper main body to be overlapped on the stopper part; and at least one mounting leg projecting from the stopper main body to be inserted into the mounting hole of the stopper part. The mounting leg includes a neck to be positioned within the mounting hole, a protrusion to pass through the mounting hole and be positioned on a back surface side of the stopper part, and a detent positioned between the neck and the protrusion to be detained with the back surface of the stopper part. The detent includes at least one notched part where an outside diameter of the detent is made small, the notched part being provided partially in a circumferential direction of the detent.

Abstract: A rubber stopper configured to be mounted onto a stopper part of a vibration damping device having a mounting hole, including: a stopper main body to be overlapped on the stopper part; and at least one mounting leg projecting from the stopper main body to be inserted into the mounting hole of the stopper part. The mounting leg includes a neck to be positioned within the mounting hole, a protrusion to pass through the mounting hole and be positioned on a back surface side of the stopper part, and a detent positioned between the neck and the protrusion to be detained with the back surface of the stopper part. The detent includes at least one notched part where an outside diameter of the detent is made small, the notched part being provided partially in a circumferential direction of the detent.

Abstract: A tubular vibration-damping device including: an inner axial member; an outer tubular member; and a main rubber elastic body connecting an outer peripheral surface of the inner axial member and an inner peripheral surface of the outer tubular member, wherein the outer peripheral surface of the inner axial member has an irregular shape including both lateral side faces with which a width of the inner axial member gets narrower in a lower side than in an upper side for an axis-perpendicular direction, and an inclination angle of a direction of each of the lateral side faces with which the width of the inner axial member gets narrower is larger in the lower side than in the upper side, and the lateral side faces respectively have groove-shaped concave portions formed extending continuously from the upper side to the lower side.

Abstract: A vibration damping device including: a main rubber elastic body connecting a first and a second mounting members; a fluid-filled unit having a tubular housing closed off by a rubber elastic wall and a flexible film for providing therein a fluid chamber filled with a non-compressible fluid, and a partition member positioned within the fluid chamber to form on a first side thereof a primary fluid chamber partly defined by the rubber elastic wall, and on the other side thereof a secondary fluid chamber partially defined by the flexible film, with these chambers communicating through an orifice passage; and a rigid piston member. Upon input of vibration across the first and second mounting members, pressure fluctuations is exerted on the primary fluid chamber through elastic deformation of the rubber elastic wall of the fluid-filled unit induced through pushing by the contacting member via the piston member.

Abstract: A nickel-hydrogen battery is designed to have, in its battery container, electrode plates welded and connected onto a lead conductor. With the configuration, the edge of the end portion of the lead conductor welded onto the electrode plate can be formed as a combination of concave and convex portions. The stresses on the electrode plate and lead conductor are concentrated on the edge of the end portion onto which the electrode plate and lead conductor are welded and where a crack may arise. However, shaping into waveform the edge of the end portion where the lead conductor is welded onto the electrode plate makes the edge of the end portion long enough to reduce the concentration of the stresses. Furthermore, even if the crack may have arisen, the development of the crack can be reduced by making the crack development direction different from the direction of the edge of the lead conductor because the edge of the end portion of the lead conductor is shaped into waveform.