Provided is a pre-distancing collapsible system particularly for the elements of a structural frame of a building such as a wall frame. An embodiment includes at least three components of a structural frame and at least two spacers. The spacers are not structural elements of the frame and may be fastened to heads of the structural components of the frame. The spacers may be foldable. A manufacturing method for assembling the wall frame components for shipping is provided. A method for forming a wall frame from the shipped, packed-together components is also provided.

An assembly for converting motion comprises a first arm and a second arm rotatable about first and second fixed pivots; a third arm pivotably connected to the second arm; a first connecting arm pivotably connected to and extending between the first arm and the third arm; a second connecting arm pivotably connected to and extending between the first arm and the second arm; and a locking assembly comprising a first locking member and a second locking member, the first locking member connected to one of the arms and engaging with the second locking member at one or more positions from the retracted position to the extended position. The assembly may comprise the guide assembly comprising a guide member and an engagement member moveably engageable with the guide member.

Supporting framework of a tent with a roof having a pyramid shape, a supporting structure comprising at least four supports, at least three outer scissor-type grid sections for each outer side of the supporting framework, a device for attaching the roof to the central post, central diagonal bars extending from the central post, wherein the central diagonal bars are connected to the outer scissor-type grid sections via scissor-type grid sections directed inwards into the tent, and wherein the central post is extended by means of a handling bar—for the formation of the apex of the roof, and wherein the handling bar or the central post can be connected to the central diagonal bars.

A collapsible structural frame configured to provide a structure to which building material sheets are attached to form a surface. The frame includes a first frame portion that corresponds to a first portion of the surface and is configured to receive a first sheet of the building material and a second frame portion that corresponds to a second portion of the surface and is configured to receive a second sheet of the building material. A pivoting mechanism attaches the second frame portion to the first frame portion and has a pivoting axis. The pivoting mechanism permits the second frame portion to rotate about the pivoting axis relative to the first frame portion from an undeployed state to a deployed state. A locking mechanism may fix a relative position of the first frame portion and the second frame portion in the deployed state.

An extendable arm is comprised of a plurality of cross units arranged in one direction with adjacent ones of the cross units being pivotally coupled at their ends via end coupling shafts. Each of the cross units is comprised of first and second rigid members crossing each other in an X shape and pivotally coupled at their intersection via a middle coupling shaft. The extendable arm includes an engaging protrusion and an engaging recess which move toward each other as the extendable arm extends and fit together when the extendable arm extends to a predetermined length.

An extendable arm is comprised of a plurality of cross units arranged in one direction with adjacent ones of the cross units being pivotally coupled at their ends via end coupling shafts. Each of the cross units is comprised of first and second rigid members crossing each other in an X shape and pivotally coupled at their intersection via a middle coupling shaft. The extendable arm includes an engaging protrusion and an engaging recess which move toward each other as the extendable arm extends and fit together when the extendable arm extends to a predetermined length.

A lattice structure comprising a series of connecting rings or half-rings on which a series of orienting elements are secured. The orienting elements being equipped with holes and a slot in which the connecting rings or half-rings are disposed, as well as comprising profiles that are solidly connected using joining elements that extend through holes in the profiles.

Collapsible building frame modules having first and second frame components are contemplated. One or more cross-link beams couple the first and second frame components. It is contemplated that the one or more cross-link beams slide along a frame component on one end and rotate with respect to a different frame component on an opposite end to thereby fold or unfold a building frame module. One or more building frame modules can be horizontally or vertically stacked to form a building frame or a portion of a building frame.

An object is to provide a column frame structure for a prefabricated house which enhances the efficiency of transportation, which maintains waterproof performance, and which achieve a satisfactory appearance in terms of appearance. A column frame 20 is foldably fitted onto a floor panel 40. A prefabricated house P in which a roof panel 10 is stacked on the column frame 20 is provided. When the prefabricated house is assembled, a gable end portion in the roof panel 10 is formed so as to be prevented from being protruded beyond the outside surface of the column frame 20. An eaves gutter 50 is installed so as to extend downward from the gable end portion in the roof panel 10. The eaves gutter 50 is formed so as to be prevented from being protruded outward beyond the outside surface of the column frame 20 on the gable.

An extendable arm includes first and second rigid members forming a cross unit. Each rigid member includes one end portion including one of end coupling shafts, the other end portion including the other end coupling shaft, and a middle portion including a middle coupling shaft. The one end portion of each rigid member includes a bottom-side outer side surface that surface-contacts a base surface when the extendable arm in an extended state is placed thereon. The other end portion of each rigid member includes a top-side outer side surface extending parallel to the bottom-side outer side surface of each rigid member. The middle portion of each rigid member includes a middle strip region passing through a middle coupling shaft and perpendicular to the bottom-side outer side surface and the top-side outer side surface.