Abstract: A vehicle knuckle 1 includes a main body 10, a strut junction 11 that is positioned at a first side in an extending direction of an axle supported by the main body and fastens a strut damper, and an arm 12 that couples the main body to the strut junction. The vehicle knuckle has a continuous space 17 formed inside the strut junction and the arm. The arm has a first through-hole 17a on a wall 12a that couples an end 10d at the first side of the main body to the strut junction. The first through-hole is formed, with being adjacent to the end at the first side, at the side of the main body with respect to the center of a coupling position of the wall and the main body and a coupling position of the wall and the strut junction and is communicated with the space.

Abstract: A vehicle knuckle 1 includes a main body 10, a strut junction 11 that is positioned at a first side in an extending direction of an axle supported by the main body and fastens a strut damper, and an arm 12 that couples the main body to the strut junction. The vehicle knuckle has a continuous space 17 formed inside the strut junction and the arm. The arm has a first through-hole 17a on a wall 12a that couples an end 10d at the first side of the main body to the strut junction. The first through-hole is formed, with being adjacent to the end at the first side, at the side of the main body with respect to the center of a coupling position of the wall and the main body and a coupling position of the wall and the strut junction and is communicated with the space.

Abstract: A ball joint assembly includes a stud bracket having the shape of a rectangular block, a first ball joint connected to an upper surface of the stud bracket and a second ball joint connected to a lower surface of the stud bracket. The first and second ball joints extend from the stud bracket at an angular displacement of 180 degrees and with a relatively small distance defined therebetween as seen in plan view. The stud bracket comprises a bracket main body having a rectangular shape and integrally including a pair of ball studs extending from the upper and lower surfaces thereof.

Abstract: [Task] Provided is a double-joint type wheel suspension system for a steerable wheel that can reduce the required steering torque. [Means for Accomplish the Task] A ball joint assembly 21 comprises a stud bracket 23 having the shape of a rectangular block, a first ball joint 23 connected to an upper surface of the stud bracket 23 and a second ball joint connected to a lower surface of the stud bracket 23. The first and second ball joints 24 and 25 extend from the stud bracket 23 at an angular displacement of 180 degrees and with a relatively small distance defined therebetween as seen in plan view. The stud bracket 23 comprises a bracket main body 31 having a rectangular shape and a pair of ball studs 32 extending from the upper and lower surfaces thereof.

Abstract: A vehicular suspension system is provided in which the lower end of a coil spring (16) is positioned lower than a support part (30) where a suspension arm (14) is supported on a vehicle body, the lower end of the coil spring (16) is positioned on the laterally inner side of the vehicle body relative to the upper end of the coil spring (16), and when a wheel (W) rebounds and the coil spring (16) is elongated, the lower end of the coil spring (16) can therefore move along its axis. As a result, the coil spring (16) can be prevented from bending at a time of rebound, the spring constant thus increases, and the lower end of the coil spring (16) is pressed strongly against a spring seat (51) and thus prevented from lifting, thereby preventing any degradation in the turning performance. This can prevent the lower end of the coil spring of the vehicular suspension system from lifting from the spring seat when the coil spring is elongated, thus preventing any degradation in the turning performance.

Abstract: A vehicular suspension system is provided in which the lower end of a coil spring (16) is positioned lower than a support part (30) where a suspension arm (14) is supported on a vehicle body, the lower end of the coil spring (16) is positioned on the laterally inner side of the vehicle body relative to the upper end of the coil spring (16), and when a wheel (W) rebounds and the coil spring (16) is elongated, the lower end of the coil spring (16) can therefore move along its axis. As a result, the coil spring (16) can be prevented from bending at a time of rebound, the spring constant thus increases, and the lower end of the coil spring (16) is pressed strongly against a spring seat (51) and thus prevented from lifting, thereby preventing any degradation in the turning performance. This can prevent the lower end of the coil spring of the vehicular suspension system from lifting from the spring seat when the coil spring is elongated, thus preventing any degradation in the turning performance.

Abstract: In an arrangement for mounting a tubular member, such as a part of a dynamic damper or a dust boot, made of elastomeric material onto a shaft member, an annular projection is formed integrally on the inner circumferential surface of the tubular sleeve member, and an endless band made of relatively rigid material such as steel is either insert molded in or fitted on the tubular sleeve member so as to surround the annular projection. The outer diameter of the shaft member is smaller than the inner diameter of the endless band, but is greater than the inner diameter of the annular projection. Therefore, the elastomeric tubular member can be firmly fitted onto a shaft easily and economically. Because the endless band can be made of a seamless solid ring or a welded ring, it is more reliable in use than conventional steel band fasteners. Since the endless band is uniform over its entire circumferential length, it is free from any rotational imbalance.

Abstract: An upper arm in a suspension system for a vehicle includes a substantially plate-like body portion which is bifurcated in a longitudinal direction of a vehicle body from a tip end side of the upper arm connected to a knuckle toward a base end side of the upper arm connected to a vehicle body frame, an outer flange extends downwardly from an outer edge of the body portion and then extends outwardly, and an inner flange extends downwardly from an inner edge of the body portion and then extends inwardly. The body portion and the outer and inner flanges are integrally formed from a single material blank through pressing. The vertical dimension of the inner flange closer to load application lines which connect a mounting hole for a ball joint for connecting the upper arm to a knuckle with mounting holes for a pair of rubber bush joints for connecting the upper arm to a vehicle body frame is larger than the vertical dimension of the outer flange farther from the load application lines.