Pivot shaft structure for supporting swing arm

Details Pivot shaft structure for supporting swing arm Pivot shaft structure for supporting swing arm

2007-01-16

2007-01-16

Binda, Greg (Department: 3679)

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Headed fastener element with nut, washer, securing means or cap

Cap over the head

C180S227000

Reexamination Certificate

active

10856794

ABSTRACT:
A pivot shaft includes a shaft member having a male screw portion to be thread-connected to a vehicle body frame, and a nut member having a female screw portion to be thread-connected to part of a male screw portion of the shaft member corresponding to a projecting thread portion projecting from the vehicle body frame. The nut member as a locknut is attached so as to prevent the rotation of the adjusted shaft member. The locknut is a nut member formed into a cap-shape or a ball-head locknut shape. A tool engaging portion to which a multi-purpose tightening tool can be engaged is formed on the nut member. Since the multi-purpose tool can be engaged with the tool engaging portion on the nut member accurately, control of a tightening torque is facilitated, and the number of steps for controlling the tightening torque can be reduced.

REFERENCES:
patent: 116990 (1871-07-01), Plunkett
patent: 4484650 (1984-11-01), Isaka et al.
patent: 6053681 (2000-04-01), Mattershead
patent: 6224167 (2001-05-01), Riley
patent: 2564078 (1996-09-01), None

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