Hydraulically damped tensioner device for power transmission cha

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

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Details

474140, 474111, 474101, F16H 708

Patent

active

058686380

ABSTRACT:
A tensioner device for a power transmission chain, which has a small number of components and hence is able to reduce the cost of manufacture and assembly, can be mounted or installed easily, and requires only a small space for installation thereof. The tensioner device consists of a tensioner lever (4) pivoted at one end thereof on a support shaft (3) disposed on a fixed member (2) and carries, on a surface thereof facing a chain (7), a shoe (8) slidably engageable with the chain (7). The opposite end of the tensioner lever (4) has formed therein a plunger receiving hole (9) having an opening (9A) facing in a direction opposite to the surface to which the shoe (8) is attached. A plunger (10) is slidably received in the plunger receiving hole (9) and is held in abutment with a stopper (17) disposed on the fixed member (2). The plunger (10) is urged in a forward direction projecting outwardly from the plunger receiving hole (9), and a unidirectional restriction device resists movement of the plunger (10) in the reverse direction.

REFERENCES:
patent: 4283182 (1981-08-01), Kraft
patent: 5006095 (1991-04-01), Suzuki
patent: 5030169 (1991-07-01), Kiso et al.
patent: 5073150 (1991-12-01), Shimaya
patent: 5184983 (1993-02-01), Shimaya et al.
patent: 5248282 (1993-09-01), Susuki
patent: 5366417 (1994-11-01), Shimaya
patent: 5647811 (1997-07-01), Mott

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