J. I. Case Company

Joe L Baker

Thomas R Brown

Lanny J Roth

A door operating mechanism for a cab door of a material handling implement is disclosed which includes a hold-open latch arrangement for conveniently maintaining the door in a partially open position. The operating mechanism includes a selectively operable door latch mechanism mounted on the cab door which cooperates with a latch pin mounted on the cab frame for releasably maintaining the cab door in a closed position. The hold-open latch of the mechanism is pivotally mounted on the cab door for movement between active and inactive positions, whereby in the active position thereof the hold-open latch is releasably engageable with the frame-mounted latch pin. By this construction, the hold-open latch and latch pin can be positioned in cooperating engagement with each other whereby the cab door is maintained in a partially open position. Very effective ventilation of the operator's cab is provided when the door is in its partially open position, thus avoiding the need for relatively complex and expensive movable window assemblies or the like in the cab door construction.

Cab door structure and hold-open mechanism

An arrangement for guiding and supporting a windowpane is disclosed which is particularly suited for embodiment in association with the windowpanes of a tractor cab. The arrangement includes a unitary guide member with integral biasing means adapted to receive the marginal edge portion of a windowpane. The unitary guide is adapted for operative engagement with a support channel or track for slidable movement of the windowpane and guide together within the track. Retention means are provided to prevent undesired disengagement of the unitary guide from the support track. The track and unitary guide are preferably extruded elements which are formed from resilient material to effect the desired biased engagement of the guide with the track, and to accommodate fabrication and assembly of the arrangement.

Guide and support assembly for a window pane

An attaching and release mechanism is provided for coupling a material handling bucket to the free end of a scoop arm extending from a loader or backhoe. A universal bucket mounting linkage is pivotally mounted to the loader scoop arm and readily receives various types and sizes of buckets. The bucket mounting linkage has a four-bar configuration with hook portions adapted for engagement with mating projections on the bucket. Over-center linkage, pivotally attached to one end of the bucket mounting linkage, provides locking engagement or disengagement between the hook portions and the mating projections on the bucket. To latch the bucket on the loader scoop arm, the hook portions and over-center linkage are aligned with the complementary mounting structure on the bucket, and the over-center linkage is pushed over-center which causes the bucket mounting linkage to lock against the mounting structure on the bucket to thereby couple the bucket and loader scoop arm.

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Carman, IL, United States of America

Joe L Baker