Chain tensioner

Details Chain tensioner Chain tensioner

2006-05-24

2008-10-07

Johnson, Vicky A (Department: 3682)

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Tension adjuster or shifter driven by electrical or fluid motor

Reexamination Certificate

active

07431675

ABSTRACT:
A ratchet tensioner is disclosed for a chain enclosed within a casing that does not have a removable cover. The tensioner including a body for mounting on the exterior of the casing, a plunger slidably mounted in the body and urged in use into the interior of the casing to deflect a run of the chain laterally in order to increase tension in the chain. The plunger is formed with ratchet teeth which interact with a pawl that is pivotably mounted on the body to permit movement of the plunger only in the direction to increase chain tension. In the invention, a pin is provided for inhibiting pivoting movement of the pawl during installation of the tensioner, the pin being retractable from outside the casing in order to free the pawl after the tensioner has been mounted on the casing.

REFERENCES:
patent: 4371360 (1983-02-01), Ojima et al.
patent: 5030169 (1991-07-01), Kiso et al.
patent: 5055089 (1991-10-01), Ojima
patent: 5649878 (1997-07-01), Noguchi et al.
patent: 5700215 (1997-12-01), Tada et al.
patent: 6105549 (2000-08-01), Moser
patent: 6450908 (2002-09-01), Ishii et al.
patent: 6547684 (2003-04-01), Kurohata
patent: 6612951 (2003-09-01), Kurohata
patent: 7048662 (2006-05-01), Maino
patent: 7077772 (2006-07-01), Hashimoto et al.
patent: 2003/0125142 (2003-07-01), Hashimoto et al.
patent: 2004/0127316 (2004-07-01), Hashimoto et al.
patent: 2005/0049093 (2005-03-01), Sato et al.
patent: 8102304 (1980-06-01), None
patent: 58008211 (1983-01-01), None

Affiliated with

Also associated with

Rating

Chain tensioner does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Chain tensioner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chain tensioner will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4005427