The present invention discloses a shaft-tube joint structure of a carbon fiber reinforced plastic (CFRP) drive shaft. The shaft-tube joint structure includes a hollow shaft tube, a plurality of first rectangular teeth being uniformly and circumferentially arranged at both ends of the hollow shaft tube; two shaft-tube joints which are respectively fixed at two ends of the hollow shaft tube, the thickness of the shaft-tube joint being smaller than that of the hollow shaft tube, and an inner wall of the shaft-tube joint being smoothly connected to an inner wall of the hollow shaft tube; and a universal joint, an end thereof being tubular, a plurality of second rectangular teeth being uniformly and circumferentially arranged, the universal joint being matched with and sleeving the outer wall of the shaft-tube joint, and the second rectangular teeth being meshed with the first rectangular teeth.

The invention relates to a device (1) for connecting an end of a first shaft to an end of a second shaft, the end of the first shaft having a radial groove, the device comprising:a body (2) having a bore (21) into which the end of the first shaft can be introduced,a locking pin (3) mounted so as to be movable with respect to the body (2) between a locked position, in which the pin (3) projects into the bore (21) such that, when the end of the first shaft is received inside the bore (21), the locking pin (3) is engaged in the radial groove in the end of the first shaft in order to prevent the end of the first shaft from being removed from the bore (21), and an unlocked position, in which the locking pin (3) is disengaged from the radial groove in the end of the first shaft so as to allow the end of the first shaft to be introduced into the bore (21) or to allow the end of the first shaft to be removed from the bore (21), andan elastic return member (4) for urging the locking pin (3) into the locked position.

A stabilizing apparatus for a medical device includes a housing having an aperture to receive the medical device. An engagement member is disposed in the housing. A biasing element urges the engagement member against a surface of the medical device, when the medical device is placed in the housing.

A steering shaft according to an aspect of the present invention includes an upper shaft, a lower shaft, and a seal cap. The seal cap includes a seal which comes into close contact with an inner peripheral surface of the upper shaft and a closure which bulges upward with respect to the seal. The closure is plastically deformed downward, and thus, the seal cap is held in an upper end opening portion in a state where the seal is pressed against the inner peripheral surface of the upper shaft.

The torque transmission shaft includes: a shaft that is integrally formed and that has a yoke provided at one end portion in the axial direction and a female serration provided on the inner peripheral surface at the other end in the axial direction; and a clamp that is separate from the shaft and that is capable of reducing the diameter of the other end portion of the shaft in the axial direction; wherein the shaft and the clamp are fixed together.

A vehicular propeller shaft through which a rotary motion of a drive power source is transmitted to drive wheels and which includes a first tubular member and a second tubular member. The first tubular member has a large-diameter cylindrical section, a small-diameter cylindrical section having a smaller outside diameter than the large-diameter cylindrical section, and a tapered cylindrical section formed between one end of the large-diameter cylindrical section and the small-diameter cylindrical section. The large-diameter cylindrical section, the small-diameter cylindrical section and the tapered cylindrical section are formed integrally with each other. The second tubular member is coaxially joined to the first tubular member and formed of a material having a higher degree of strength than the first tubular member.

A steering clamp yoke includes a first side surface and a second side surface. The first side surface has a first surface segment and a second surface segment that is disposed in a non-parallel relationship with the first surface segment. The non-parallel relationship between the second surface segment and the first surface segment enables a bolt that is inserted into a bolt hole of the steering clamp yoke to contact both sides of the bolt hole to reduce or minimize bolt bending.

A shaft assembly includes a yoke. The yoke defines a first bore and a second bore. The first bore extends from a first face towards a second face along a first axis. The first bore has a key that extends towards the first axis. The second bore extends from a third face towards a fourth face along a second axis that is disposed transverse to the first axis. The third face and the fourth face each extend between the first face and the second face.

A yoke has a yoke main body portion and a thin portion. The thin portion extends from the yoke main body portion toward the shaft, and is thinner than the yoke main body portion. The front end of the shaft is a large-diameter portion that has a larger diameter than an adjacent portion. The yoke main body portion has a yoke general-diameter portion and a step portion. The yoke general-diameter portion has an inner diameter that is substantially equal to an outer diameter of the large-diameter portion. The step portion extends from an end of the yoke general-diameter portion toward an axial line, and has an inner diameter smaller than the outer diameter of the large-diameter portion. The step portion abuts a front end of the large-diameter portion. The thin portion has reduced-radius portions that have smaller radii than the outer radius of the large-diameter portion.

A propeller shaft includes a shaft part and a a first yoke having a fixing portion, a connecting portion, a first yoke portion and a first concave portion. The connecting portion is provided apart from a first concave portion in the direction of the rotation axis of the shaft part. An outside diameter of the connecting portion is greater than an outside diameter of the shaft part in a radial direction of the rotation axis of the shaft part.