摘要:
There is provided a dust cover in which an improvement in sealing performance is achieved. A dust cover 100 used in a ball joint includes a seal main body made of an elastic body and integrally having a body portion 110, a fixed portion 130 that is provided on one end side of the body portion 110, and a seal portion 120 that is provided on the other end side of the body portion 110, and an annular auxiliary seal 150 made of resin and provided in the seal portion 120. The seal portion 120 includes an inner peripheral seal portion and a dust lip 122, and the auxiliary seal 150 includes an auxiliary inner peripheral seal portion 151, an auxiliary dust seal portion, and a supported portion 153 that is supported by a collar fixed to a shaft portion on an opposite side to the auxiliary dust seal portion in an axial direction.
摘要:
There is provided a dust cover in which an improvement in sealing performance is achieved. A dust cover 100 used in a ball joint includes a seal main body made of an elastic body and integrally having a body portion 110, a fixed portion 130 that is provided on one end side of the body portion 110, and a seal portion 120 that is provided on the other end side of the body portion 110, and an annular auxiliary seal 150 made of resin and provided in the seal portion 120. The seal portion 120 includes an inner peripheral seal portion and a dust lip 122, and the auxiliary seal 150 includes an auxiliary inner peripheral seal portion 151, an auxiliary dust seal portion, and a supported portion 153 that is supported by a collar fixed to a shaft portion on an opposite side to the auxiliary dust seal portion in an axial direction.
摘要:
Provided is a ball joint that is less affected by fluctuations in environmental temperature, and is capable of stabilizing a torque value required to rock a ball stud in a holder. The ball joint includes: a ball stud (1) including: a shaft member (11); and a ball portion (10) formed at one end of the shaft member (11); and a holder (2) made of a synthetic resin and configured to accommodate the ball portion in a pivotable manner. The holder (2) includes: an opening portion (30) from which the shaft member protrudes; a first member (20) including a first ball sliding contact surface (24) having a concave spherical shape approximate to a spherical surface of the ball portion; and a second member (3) including: a second ball sliding contact surface (31) having a concave spherical shape approximate to the spherical surface of the ball portion; and the opening portion (30) formed in a center of the second ball sliding contact surface. Further, the first member (20) and the second member (3) respectively include joining surfaces (25, 32) fixed to each other by welding, and respectively include fixation reference surfaces (28, 34) that are brought into abutment against each other.
摘要:
Provided is a ball joint in which a dust cover is fixed to a socket by a retaining ring and which has an improved waterproofing performance at a fitting region where the dust cover is fitted onto the socket. A ball joint 100 has a dust cover 140 fitted onto the outer periphery of a socket 120 formed into the shape of a cylinder with a bottom. The socket 120 has a dust cover groove 125 into which a socket fitting portion 141 of the dust cover 140 is fitted, and a dust cover receiving surface 126 for supporting a socket facing surface 143 of the dust cover 140. The dust cover receiving surface 126 inclines toward the socket facing surface 143 while extending from the outer side toward the inner side. Radial projections 142 are formed on the inner peripheral surface of the socket fitting portion 141 of the dust cover 140. Also, an axial projection 145 projecting toward the dust cover receiving surface 126 is formed on the socket facing surface 143 of the dust cover 140.
摘要:
The invention relates to a ball-joint (10), comprising a joint housing (12) with a housing opening (14), a bearing shell (16) which is arranged in the joint housing (12), a ball pivot (18) which has a joint ball (20) and a pivot (22) and is mounted by means of the joint ball (20) thereof in a rotatable and pivotable manner in the bearing shell (16) and protrudes by means of the pivot (18) thereof out of the joint housing (12) through the housing opening (14), and means (24, 30, 34) via which the joint ball (20) of the ball pivot (18) is held in the axial direction (a) in the joint housing (12). The invention is distinguished in that the means (24, 30, 34) are designed and dimensioned in such a manner that, upon reaching a predetermined maximum force while avoiding a separation of joint ball (20) and joint housing (12), only a movement of the joint ball (20) that is directed in the axial direction (a) occurs within the joint housing (12).
摘要:
[PROBLEMS] A double jointed suspension for steerable wheels reduces steering torque. [MEANS FOR SOLVING PROBLEMS] A ball joint unit (21) includes a stud bracket (23) having a substantially rectangular prism shape, a first ball joint (24) provided on the upper face of the stud bracket (23), and a second ball joint (25) provided on the lower face of the stud bracket (23). The first and second stud ball joints (24, 25) are arranged to be upright on the stud bracket (23) at an angular interval of 180 degrees and to be positioned, in a plan view, at a relatively small interval (L) on the stud bracket (23). The stud bracket (23) is constructedfrom a bracket body (31) having substantially rectangular prism shape and from ball studs (32) respectively projecting from the upper and lower surfaces of the bracket body (31).