Abstract: An operator cab for heavy construction equipment is disclosed to prevent a sliding door from rocking or rattling due to a shock or vibration applied to the cab in a state that the sliding door slidably mounted on the cab is opened or closed.

Abstract: An operator cab for heavy construction equipment is disclosed to prevent a sliding door from rocking or rattling due to a shock or vibration applied to the cab in a state that the sliding door slidably mounted on the cab is opened or closed.

Abstract: A control lever safety apparatus for a heavy equipment which is capable of preventing an operation of a work apparatus when a control lever is operated or touched in a state that an equipment is started, in such a manner that a safety lever is tilted in a lower direction in the case that a consol box installed in a side surface of a driver's seat is tilted.

Abstract: An operator protective structure equipped on a cabin of construction machine is capable of moving the cabin along with a front guard by directly installing the front guard on the cabin fixed to an upper frame to protect the operator from an object penetrating into the front of the cabin. The cabin is provided with a bottom plate on a bottom thereof, mounted on an upper frame installed on a lower driving body and independently vibrated relative to the upper frame by connecting the bottom plate to the upper frame through vibration absorbing devices. The operator protective structure includes a front guide provided with a top bar and a bottom bar and installed up and down in front of the cabin to protect the cabin from objects penetrating into a front of the cabin and a top guide formed long on a ceiling of the cabin in a front and rear direction to protect the cabin from falling objects.

Abstract: A control lever safety apparatus for preventing operation of a work apparatus when a control lever is operated or touched in an equipment started state has a safety lever and consol box tilting lever rotatably fixed to a first support in which a consol box is fixed, an operation switch assembly connected with the consol box tilting lever on a link movement method to support the safety lever in a horizontal direction and tilt the safety lever in a lower direction when the consol box tilting lever is rotated for thereby disconnecting power, and a latch assembly connected with the operation switch assembly on a link movement method to tilt the consol box in an upper direction when the consol box tilting lever is rotated for also thereby disconnecting the power.

Abstract: The present invention relates to a control lever safety apparatus for a heavy equipment which is capable of preventing an operation of a work apparatus when a control lever is operated or touched in a state that an equipment is started, in such a manner that a safety lever is tilted in a lower direction in the case that a consol box installed in a side surface of a driver's seat is tilted.

Abstract: The present invention relates to a driver protection structure and a device supporting the same which secure driver's safety according to the international standardization organization when collided with a falling object and upon equipment's rollovers, comprising a first stopper which allows a driver's cabin and the driver protection structure mounted over the driver's cabin to move in a vertical direction and restricts the driver's cabin to move in a horizontal direction, and a second stopper which allows the driver's cabin to move in the vertical direction and restricts the driver's cabin to be lifted when a load is applied to the driver's cabin from external.

Abstract: The present invention relates to a control lever safety apparatus for a heavy equipment which is capable of preventing an operation of a work apparatus when a control lever is operated or touched in a state that an equipment is started, in such a manner that a safety lever is tilted in a lower direction in the case that a consol box installed in a side surface of a driver's seat is tilted.

Abstract: The present invention relates to a driver protection structure and a device supporting the same which secure driver's safety according to the international standardization organization when collided with a falling object and upon equipment's rollovers, comprising a first stopper which allows a driver's cabin and the driver protection structure mounted over the driver's cabin to move in a vertical direction and restricts the driver's cabin to move in a horizontal direction, and a second stopper which allows the driver's cabin to move in the vertical direction and restricts the driver's cabin to be lifted when a load is applied to the driver's cabin from external.

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.