摘要:
A connecting pin has a body of great strength which will not come off position when locked and will not be caught on the way of insertion and removal.In the connecting pin, a flange 10 for locking is provided on the rear end of a column-like body. A long hole 11 is formed through in the shank part on the forward end side of the body. A shaft 12 is inserted in the shank part on the forward end side of the body in a direction intersecting the long hole and opposed two holes 17 are formed in parallel with this shaft. A lock piece 13 supported on the aforesaid shaft at a midway point and having a plurality of slots 16 in both sides is rotatably inserted and in the hole is inserted a positioning member which selectively engages in one of the slots.
摘要:
A corridor spanned or suspended between horizontal support members such as girder members in structures such as those of buildings, ships, etc. so that operators can walk or carry out operations on the corridor.The corridor comprises a main corridor and a sub-corridor, connected to the main corridor to adjust the length of the corridor.This corridor can be easily incorporated in and moved from structures to be built, easily transported and housed in narrow spaces and mounted on different length of places by one unit of the corridor.
摘要:
A stanchion adapted to expand by means of the inner as well as outer tubes and the clamping mean so that it enables a clamping of scaffolding or any other mounting base, which clamping is performed by sliding the inner and outer tubes relatively and/or by adjusting a clamping means together with the tubes or independently.
摘要:
Container to be used when goods or materials are transported by a large truck, etc. from one place to another place. It consists of multiple walls and framework frames which can be folded or rotated to fold the container compact.It is formed into a box when it contains goods or materials and folded compact when it is not in use.
摘要:
One or more pantographs are connected below a working base and are connected with a main cylinder horizontal or inclined in respect to a supporting base so as to be driven to be extended or contracted. One or more comparatively short auxiliary telescopic cylinders are erected below the working base. During the initial phase of upward movement of the working base the auxiliary cylinders will act directly to push up the working base and, when it has been elevated to a predetermined height, the pushing force is shifted to the main cylinder so that the working base may be further elevated through the pantographs.When the working base is lowered, the pantographs and main cylinder will be compactly folded.
摘要:
A joint fitting for use in a unit building provides a box-like support structure for respective ends of a column and beams to strengthen a connection or joint between the column and the beams, with a simple assembling work and low cost involved. In one preferred form, the metal fitting is used in a unit building including a plurality of unit blocks connected together in vertical, longitudinal and transverse directions and each composed of a rectangular tube-like column and at least two rectangular tube-like beams connected together. The joint fitting is composed of a substantially box-shaped metal frame member including at least one column engagement portion fittingly engageable with an end of at least one column, and at least two beam engagement portions fittingly engageable with respective ends of at least two beams.
摘要:
A container for containing cargoes to be transported by a ship or the like.Bendable right and left side plates and a vertically movable front shutter and back shutter are provided between a top plate and bottom plate so that, when the front shutter and back shutter are pulled up into the top plate and the right and left side plates are bent inward, the container will be compactly folded.Reinforcing devices are provided respectively between the top plate and right and left side plates and between the bottom plate and right and left side plates. Shutter locking devices for locking the shutters when they are pulled down are provided respectively between the front shutter and bottom plate and between the back shutter and bottom plate. Side plate locking devices are provided against the intermediate bending parts of the right and left side plates. A pair of springs energized normally to pull up the front shutter and back shutter are provided in the directions intersecting rectangularly with the shutter moving direction within the top plate. Thus, even if a load is applied from outside, the container will not be deformed. When each shutter is pulled down, it will be able to be locked. The extending and contracting stroke of the pair of springs can be taken to be sufficient.
摘要:
Transmitters generating rotating laser beams are commonly employed for surveying and earth working equipment control purposes. This invention relates to a method and apparatus for automatically maintaining the rotating laser beam in a required plane which is either exactly horizontal or at a known angle to the horizontal. The apparatus includes two remotely located laser beam reflectors which, when traversed by the rotating laser beam, respectively reflect the beam back to the transmitter along a path parallel to, but vertically displaced from the original path of the beam from the transmitter. Receiving equipment at the transmitter analyzes the vertical positions of the two reflected beams and effects any required correction of the position of the transmitter to maintain the rotating laser beam in the desired plane.
摘要:
It is intended to provide a frame having versatility, superior in assembling performance, easy to be assembled and disassembled, easy to handle and not restricted by the place for custody, as well as a prefabricated scaffolding, a shoring, or a support beam, which is very economical. The frame comprises a support post, a first connector support member mounted at an intermediate or approximately intermediate position of the support post, a second connector support member or members mounted at an upper or lower position, or both upper and lower positions, of the support post, one or plural lateral members secured to a side portion of the support post in a fixed, removable or rotatable state, and a connector mounted at an outer end of the lateral member at a vertical position corresponding to the first or the second connector support member.
摘要:
Container to be used to transport goods or materials from one place to another remote place using a large truck, etc.The front side plate and back side plate are folded into two and the side faceplates are made as shutters which can move up and down.It is formed into a box when it contains goods or materials and when it does not contain them, the shutters are housed in the upper part and the front side plate and back side plate are folded into two.