Abstract:
A suspension device for solving problems that occur in a conventional damper and a rubber member is provided. A suspension device 101 is equipped with, for example, a damper 50 including a piston portion 51, a suspension spring 60, an upper seat 70, and a spring 1. The spring 1 is arranged between an upper end portion of the piston portion 51 and a lower surface of the upper seat 70 and is an elastic member for receiving a load from the damper 50. The spring 1 has load characteristics in which hysteresis does not occur, whereby a dynamic spring constant can be small. Therefore, transmission of vibrations in a high-frequency range and an infinitesimal amplitude range is decreased. On the other hand, the spring 1 has a main body 10 that functions as a disc spring portion. Therefore, the spring constant in a direction perpendicular to an axis line of the damper 50 is large, whereby stiffness in the direction perpendicular to the axis line is increased. As a result, ride quality is improved, and stable handling is obtained.
Abstract:
The first corner portion 13, which is formed at the boundary portion between the main body portion 10 and the first cylindrical portion 11 which are positioned to each other as shown in Figs. 2A and 2B , can elastically deform in application of load such that the angle α of the first corner portion 13 changes depending on the pressing force from the first member 101. In this case, the first corner portion 13 can move toward the outside of the inner periphery portion of the main body portion 10 (the left side in the Figure) while the angle α changes. The second corner portion 14, which is formed at the boundary portion between the main body portion 10 and the second cylindrical portion 12 which are positioned to each other as shown in Figs. 2A and 2B , has the same function as that of the first corner portion 13, and it can move toward the outside of the outer periphery portion of the main body portion 10 (the right side in the Figure) while the angle β changes depending on the pressing force from the second member 102 in the elastic deformation of the second corner portion 14. As a result, the spring can prevent generation of hysteresis in load characteristics without increasing the number of parts, and enables height adjustment of the spring.
Abstract:
The first corner portion 13, which is formed at the boundary portion between the main body portion 10 and the first cylindrical portion 11 which are positioned to each other as shown in Figs. 2A and 2B , can elastically deform in application of load such that the angle ± of the first corner portion 13 changes depending on the pressing force from the first member 101. In this case, the first corner portion 13 can move toward the outside of the inner periphery portion of the main body portion 10 (the left side in the Figure) while the angle ± changes. The second corner portion 14, which is formed at the boundary portion between the main body portion 10 and the second cylindrical portion 12 which are positioned to each other as shown in Figs. 2A and 2B , has the same function as that of the first corner portion 13, and it can move toward the outside of the outer periphery portion of the main body portion 10 (the right side in the Figure) while the angle ² changes depending on the pressing force from the second member 102 in the elastic deformation of the second corner portion 14. As a result, the spring can prevent generation of hysteresis in load characteristics without increasing the number of parts, and enables height adjustment of the spring.
Abstract:
To provide a connection terminal for a power module, which can maintain an excellent contact state stably. A connection terminal 3 is a part of a power module including a semiconductor element, a substrate on which the semiconductor element is mounted, and a tubular conductive holding member which is joined to a surface of the substrate, and extends in a direction perpendicular to the surface. The connection terminal 3 electrically connects an external circuit to the substrate all the time by being held by the holding member. A conductive wire is wound in the connection terminal 3. The connection terminal 3 includes an insertion part 31, at least a part of which is closely wound and inserted into a hollow part of the holding member, a rough winding part 32 in which the wire is wound at a predetermined interval, and a contact part 34 which is provided at an end part of the rough winding part 32 on a side different from the end part on a side of the insertion part 31, and comes into contact with the external circuit. The insertion part 31 includes a press-fitting part having a diameter larger than that of the hollow part.
Abstract:
An ultrasonic welding structure for pressing a horn (3) against a columnar heating target consisting of a resin (10), applying a high frequency vibration from the hone (3) to the heating target, and thereby fusion-bonding the heating target to a predetermined bonding target, wherein the bonding target includes an insertion hole for inserting the heating target, and the insertion hole of the bonding target includes a notch formed in an inner edge of the insertion hole on a side facing the resonator. The notch of the insertion hole can be formed to serve as an acceptance unit that accepts the heating target in a molten state. Alternatively, the notch of the insertion hole can be formed to serve as a stress relaxing unit that relaxes a stress generated within the bonding target by contacting with the inner edge of the insertion hole.