| 摘要 |
<p>An internal thread (24) of serrulation is formed on the inner circumference of a tubular body (21) having closed lower end, and an external thread (26) of serrulation formed on the outer circumference of an adjust screw (25) engages with the internal thread (24). A return spring (27) is attached in the body (21) in order to urge the adjust screw (25) in the projecting direction. A friction member (31) is attached between the lower surface of the adjust screw (25) and the base of the body (21). A spherical pivot portion (32) is formed above the adjust screw (25), and an engaging hole (33) is formed at the upper end of the pivot portion (32). The adjust screw (25) is rotated in the tightening direction by rotary operation of a rotary operation tool T engaging with the engaging hole (33), and he lower surface of the adjust screw (25) is brought into pressure contact with the friction member (31) thus holding the adjust screw (25) in push-in state and facilitating attachment of the rush adjuster to a swing arm type dynamic valve.</p> |
