Transaxle assembly having an axle-locking mechanism

Details Transaxle assembly having an axle-locking mechanism Transaxle assembly having an axle-locking mechanism

1993-07-22

1995-02-07

Marmor, Charles A.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74665G, 74665GC, 744115, 188 31, F16H 5710

Patent

active

053867424

ABSTRACT:
A transaxle assembly for small-scaled, self-propelled machines of a relatively simple structure includes an axle-locking mechanism which is housed in an axle casing (19). The locking mechanism comprises left and right rotors (47L, 47R), each having teeth (47a) thereon and mounted fixedly on left and right wheel axles (20L, 20R), and left and right locking members (49L, 49R) each having at least one pawl (49a) engageable with the teeth. The locking members are mounted on a control shaft (50), which extends parallel to the wheel axles, such that these members are moved rotationally by a rotational displacement of the control shaft so as to cause locking engagement between the pawls and teeth. A torque spring (53) is preferably employed for causing lock-operating movement of the locking member by the control shaft. The transaxle and locking mechanism can be handled as a unit in a self-propelled machine so that assembling of the machine is made easier. The locking mechanism shut off from the outside has a high reliability and durability.

REFERENCES:
patent: 3200907 (1965-08-01), Hansen
patent: 3703941 (1972-11-01), Ohie et al.
patent: 4380844 (1983-04-01), Waldhauser et al.
patent: 4464948 (1984-08-01), Lindemeyer

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