A construction machine includes a vertical separating/connecting device interposed between a lower traveling body and a swing bearing that supports an upper rotating body. The device includes an externally toothed ring member fixed to the swing bearing with a first attaching unit, a rotating unit that rotates the externally toothed ring member, an internally toothed ring member fixed to the lower traveling body with a second attaching unit positioned on an attachment pitch circle having the same...

With this construction machine, a lateral load applied to a right rear pillar of a cabin in construction machine rollover or the like is transmitted to a left rear pillar via a load-transmitting beam which is inclined downwardly to the right, and is received by a vertical rib of a center section constituting an upper frame. In addition, a short-column auxiliary pillar is provided in front of the right rear pillar and is connected to the right rear pillar with a connector so as to support the lat...

Construction machinery is capable of prompting an operator to control or operate the machinery to improve fuel consumption. The fuel consumption per time or the fuel consumption per work amount is measured, and an image showing a difference between the measured fuel consumption per time and a set fuel consumption per time or between the measured fuel consumption per work amount and a set fuel consumption per work amount is displayed on a display device (30). When the measured fuel consumption pe...

A construction apparatus comprising a framework installed above a completed structure of a building so as to form a working space for construction operations including installing permanent columns over the completed structure, guide posts detachably held on the completed structure, elevating and locking mechanisms provided on the framework for elevating the framework to form the working space and for locking the framework to the guide posts, and construction equipment mounted on the framework an...

The construction set for a construction project, in particular winter gardens, canopies or awnings for entryways or windows, has a basic profile (1) usable as a support, purlin, crossbeam, lateral roof profile and wall attachment profile, having two intrinsically thermally separate cross-sectional segments (18, 19) and fastening grooves 4, 5 or undercut cross section located on the inside and receiving chambers (2, 3) located on the inside. Support, stop and sealing profiles (6, 7, 27, 8) and co...

A construction prop includes an outer tube and an inner tube wherein the inner tube telescopically fitted in the outer tube. The top end of the outer tube has a threaded section axially formed with a pair of slots. The inner tube is axially formed with several pairs of pinholes. A locating nut is screwed on the threaded section of the outer tube. A controlling member formed with a pair of through holes is fitted on the outer tube. A bottom end of the controlling member is rotatably connected wit...

A roof construction has a primary ridge member with a king post depending from the ridge member. A pair of secondary ridge members are secured in sockets in the king post at different heights.

A construction machine according to the present invention includes a variable displacement hydraulic pump (11, 12) driven by a prime mover (10), a single traveling actuator (5) driven with pressure oil discharged from the hydraulic pump (11), a plurality of work actuators (2a, 4d to 4f) driven with the pressure oil discharged from the hydraulic pump (11, 12), a plurality of control valves (13 to 17) that control flows of the pressure oil from the hydraulic pump (11) to each of the traveling actu...

A folding type door is fitted in a cab box. Two door panels and are disposed substantially in the same vertical plane as a left side cover of an upper revolving structure when said door in a closed position. Catches and are provided in a left rear side section of the cab box. Provided on door panels and of the folding type door are strikers and to be attachably or detachably engaged with the catches and separately of each other. When the folding type door is opened, the respective door panels an...

The invention relates to a construction apparatus comprising a mast, a slide guided in a longitudinally displaceable manner on a front side of the mast, at least one drive chain for the slide arranged longitudinally to the mast and at least one drive pinion supported on the slide in a rotatable and drivable manner, which is engaged with the drive chain. Provision is made for the drive chain and the drive pinion to be arranged in front of the front side of the mast.