Cabs of heavy construction vehicles with an openable front windo

Details Cabs of heavy construction vehicles with an openable front windo Cabs of heavy construction vehicles with an openable front windo

1991-05-24

1992-03-17

Song, Robert R.

Land vehicles: bodies and tops

Bodies

Structural detail

296201, 49 41, B60B 3306

Patent

active

050962531

ABSTRACT:
A cab of a heavy construction vehicle comprising an arc-shaped front wall, an arc-shaped movable front window and arc-shaped guide rails, all of which have substantially the same radius of curvature. During the movement of the front window between its full opening position and full closing position, the movement trace of the front window is present substantially near and along the front wall of the cab so that inner space of the cab may not reduced upon opening and closing of the front window. As a result, there is no danger that the operator may injured by the moving front window. It is also possible to lock the front window at an optionally desired position between its full opening position and full closing position. The cab also comprises a locking device including a plurality of engaging members each provided with a cam surface and an engaging surface and a lock bolt adapted to be slidably contactable with a required engaging member and engagable with the engaging surface of the engaging member. In virtue of the camming of the locking device, locking of the front window can be accomplished simply and surely.

REFERENCES:
patent: 2651541 (1953-09-01), Surles
patent: 2819114 (1958-01-01), Lake
patent: 3341247 (1967-09-01), Marlinmaas
patent: 4880269 (1989-11-01), Jensen et al.

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