Patent ID: 7934767
Filing Date: 2011-05-03
Classification: B60J,E05D,E05F,E05Y

Abstract:
1. An operator cab for heavy equipment, comprising: an outer sidewall having a doorway formed thereon; upper and lower rails provided on upper and lower portions of the outer sidewall, respectively; a sliding door including upper and lower rollers that are slidably engaged with the upper and lower rails, respectively, to open or close the doorway; a first upper stopper secured on the outer sidewall to contact the upper roller when the sliding door is slid to a fully opened position, the first upper stopper including a pad having a slant surface thereon, the pad being elastically supported to produce a displacement in a forward/backward direction of the cab and a pressure on the upper roller when the upper roller comes into contact with the first upper stopper to prevent the sliding door from rocking at the fully opened position; a first lower stopper secured on the outer sidewall to contact the lower roller when the sliding door is slid to the fully opened position, the first lower stopper including a pad having a slant surface thereon, the pad being elastically supported to produce a displacement in the forward/backward direction of the cab and a pressure on the lower roller when the lower roller comes into contact with the first lower stopper to prevent the sliding door from rocking at the fully opened position; a second upper stopper secured on the outer sidewall to contact the upper roller when the sliding door is slid to a fully closed position, the second upper stopper including a pad having a slant surface thereon, the pad being elastically supported to produce a displacement in the forward/backward direction of the cab and a pressure on the upper roller when the upper roller comes into contact with the second upper stopper to prevent the sliding door from rocking at the fully closed position; a second lower stopper secured on the outer sidewall to contact the lower roller when the sliding door is slid to the fully closed position, the second lower stopper including a pad having a slant surface thereon, the pad being elastically supported to produce a displacement in the forward/backward direction of the cab and a pressure on the lower roller when the lower roller comes into contact with the second lower stopper to prevent the sliding door from rocking at the fully closed position; and a central stopper secured on the outer sidewall to contact a central roller when the sliding door is slid to the fully opened position, the central stopper including a pad having a slant surface thereon, the pad elastically supported to produce a displacement in a forward/backward direction of the cab and a pressure on the lower roller when the central roller comes into contact with the central stopper to prevent the sliding door from rocking at the fully opened position; wherein the sliding door further includes first and second lower rollers; the first lower stopper comprises: the second lower stopper comprises: the sliding door further includes first and second central rollers; and the central stopper comprises: