The invention relates to a shape-variable multiple junction point extendable structure that is configured to extend and contract by coupling a plurality of coupling structures 20. Each of the coupling structures 20 includes two rigid members 21, and a plurality of horizontal coupling parts 40 each attached to a respective one of the rigid members 21. Each of the horizontal coupling parts 40 is capable of being rotatably coupled to each other. In each of the coupling structures 20, the horizontal coupling parts 40 attached to a central part of each of the rigid members 21 are coupled to each other. In each of the coupling structures 20, each of the horizontal coupling parts 40 attached to an end part of each of the rigid members 21 is coupled to the horizontal coupling part 40 of another coupling structure 20.
The present invention provides a telescopic structure having a variable shape and including a plurality of junctions, the telescopic structure being telescopic using a plurality of coupling structures 20 coupled together. Each coupling structure 20 includes two rigid members 21 and a plurality of lateral coupling portions 40 attached to each of the rigid members 21. The lateral coupling portions 40 can be rotatably coupled together. In the respective coupling structures 20, the lateral coupling portions 40 attached to the central portion of the respective rigid members 21 are coupled together. In each coupling structure 20, each of the lateral coupling portions 40 attached to the ends of each rigid member 21 is coupled to the lateral coupling portion 40 of another coupling structure 20.
An interlocking telescopic structure includes a telescopic arm 2 having a plurality of cross units 20 to which rigid members 21, 22 are rotatably connected, a telescopic arm 3 having a plurality of cross units 30 to which rigid members 31, 32 are rotatably connected, and a connecting member 4 connecting the telescopic arms 2, 3. The connecting member 4 is provided with a first member 41 having connecting parts 41a, 41b, 41c, and a second member 42 having connecting parts 42a, 42b. The connecting part 41c is rotatably connected to the connecting part 42a, the connecting part 41a to the rigid member 21, the connecting part 41b to the rigid member 31, and the connecting part 42b to the rigid members 22, 32. When the first member 41 and the second member 42 rotate, the rate of change in the distance between the connecting parts 41a, 42b is different from the rate of change in the distance between the connecting parts 41b, 42b.
Bend members making up a variable shape structure each have a central coupling point, a one-end coupling point, and an other-end coupling point that are arranged so as to form a V shape with a fixed bend angle. A central coupling point of the first bend member and a central coupling point of the second bend member are pivotally coupled together. A central coupling point of the third bend member and a central coupling point of the fourth bend member are pivotally coupled together. A one-end coupling point of the first bend member and a one-end coupling point of the third bend member are pivotally coupled together. A one-end coupling point of the second bend member and a one-end coupling point of the fourth bend member are pivotally coupled together. The first, the second, the third, and the fourth bend members are of the same shape and the same size.
A47B 43/00 - Cabinets, racks or shelf units, characterised by features enabling folding of the cabinet or the like
B44F 99/00 - Subject matter not provided for in other groups of this subclass
A47F 7/02 - Show stands, hangers, or shelves, adapted for particular articles or materials for jewellery, dentures, watches, eye-glasses, lenses, or the like
F16M 13/02 - Other supports for positioning apparatus or articlesMeans for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
A63H 13/00 - Toy figures with self-moving parts, with or without movement of the toy as a whole
A47F 7/00 - Show stands, hangers, or shelves, adapted for particular articles or materials
F16S 5/00 - Other constructional members not restricted to an application fully provided for in a single class
5.
Extendable arm, variable shape frame, and variable shape three-dimensional structure
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.
E04B 1/34 - Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairsFeatures relating to the elastic stability
E04H 15/50 - Supporting means, e.g. frames collapsible, e.g. breakdown type foldable, i.e. having pivoted or hinged means lazy-tongs type
E04C 3/00 - Structural elongated elements designed for load-supporting
E04B 1/344 - Structures characterised by movable, separable, or collapsible parts, e.g. for transport with hinged parts
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.
An extendable arm structure includes: an upper extendable arm and a lower extendable arm which extend parallel in a same direction; and a vertical coupling member that couples the upper and lower extendable arms. Each of the extendable arms includes a plurality of X-shaped cross units each formed by pivotally coupling two rigid members via a middle coupling shaft, and two end coupling shafts that pivotally couple ends of adjacent ones of the cross units. The extendable arm structure further includes: a planar member that closes, in a planar fashion, a space between the rigid member of the upper extendable arm and the rigid member of the lower extendable arm which extends parallel to the rigid member of the upper extendable arm in a same direction.
E04B 1/34 - Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairsFeatures relating to the elastic stability
E04H 12/18 - TowersMasts or polesChimney stacksWater-towersMethods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic
E04H 15/50 - Supporting means, e.g. frames collapsible, e.g. breakdown type foldable, i.e. having pivoted or hinged means lazy-tongs type
E04F 10/10 - SunshadesAwnings of a plurality of similar rigid parts, e.g. slabs, lamellae collapsible
E06B 9/06 - Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
G09F 15/00 - Boards, hoardings, pillars, or like structures for notices, placards, posters, or the like
E04B 1/344 - Structures characterised by movable, separable, or collapsible parts, e.g. for transport with hinged parts
8.
Variable shape frame and variable shape three-dimensional structure
A variable shape frame having a polygonal shape includes: extendable arms forming each side of a polygonal frame; and corner members located at at least two of the corners of the polygon. Each of the extendable arms includes cross units each formed by two rigid members in an X-shape and pivotally coupled by a middle coupling shaft, and an end coupling portion pivotally coupling ends of adjacent ones of the cross units. The end coupling portion includes inner end coupling shafts and outer end coupling shafts. Adjacent two of the extendable arms are pivotally coupled by a common one of the inner end coupling shafts at every corner of the polygon. The corner member includes a first guide portion linearly guiding the inner end coupling shafts of the first extendable arm, and a second guide portion linearly guiding the inner end coupling shafts of the second extendable arm.
E04H 12/18 - TowersMasts or polesChimney stacksWater-towersMethods of erecting such structures movable or with movable sections, e.g. rotatable or telescopic
E04B 1/343 - Structures characterised by movable, separable, or collapsible parts, e.g. for transport
E04C 3/02 - JoistsGirders, trusses, or truss-like structures, e.g. prefabricatedLintelsTransoms
A variable shape three-dimensional structure includes: an upper frame; a lower frame; and a longitudinal coupling member that couples the upper and lower frames. Each of the frames includes cross units and an end coupling portion. Each cross unit is formed by two rigid members crossing each other and pivotally coupled together. The end coupling portion pivotally couples the ends of the rigid members of the cross units. The longitudinal coupling member includes a bent unit comprising a first and second bent rigid members, and a bent portion coupling shaft. The first and second bent rigid members are bent in a V-shape. The bent portion coupling shaft pivotally couples the bent portions of the first and second bent rigid members. The upper end of the bent unit is coupled to the upper frame and the lower end of the bent unit is coupled to the lower frame.
B66F 11/04 - Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
A variable area frame includes: extendable arms forming each side of a polygonal frame; and a coupling mechanism that couples adjoining two of the extendable arms so that these two extendable arms can move together, in order to allow adjoining two sides of the polygonal frame to extend and contract together. Each extendable arm includes a plurality of cross units each formed by pivotally coupling two rigid members, which cross each other to form an X-shape, via a middle coupling shaft, and an end coupling portion that pivotally couples ends of adjoining ones of the cross units.
E04H 1/12 - Small buildings or other erections for limited occupation, erected in the open air or arranged in buildings, e.g. kiosks, waiting shelters for bus stops or for filling stations, roofs for railway platforms, watchmen's huts or dressing cubicles
F21V 33/00 - Structural combinations of lighting devices with other articles, not otherwise provided for
b) has such a curved shape that coupling points (d, e) at both ends of the rigid member are shifted toward one side from a longitudinal axis passing through the central coupling point (c).
E04G 3/00 - Scaffolds essentially supported by building constructions, e.g. adjustable in height
F16M 13/02 - Other supports for positioning apparatus or articlesMeans for steadying hand-held apparatus or articles for supporting on, or attaching to, an object, e.g. tree, gate, window-frame, cycle
A47B 23/02 - Bed-tablesTraysReading-racksBook-rests releasably mounted on the bedstead
A47C 21/00 - Attachments for beds, e.g. sheet holders or bed-cover holders Ventilating, cooling or heating means in connection with bedsteads or mattresses
F16M 11/10 - Means for attachment of apparatusMeans allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
F21S 6/00 - Lighting devices intended to be free-standing
F21W 121/04 - Use or application of lighting devices or systems for decorative purposes, not provided for in groups for Christmas trees
A telescopic arm (30) has a structure wherein formed is a cross unit (31) in which two rigid members (31a, 31b) are rotatably connected at a center connection point (c) and mutually cross in an X-shape, and a plurality of the cross units are overlapped in one direction and are rotatably connected to each other. Each of the rigid members (31a, 31b) has a curved shape in which both end connection points (d, e) of the rigid members are positioned offset to one side from a longitudinal direction axis which passes through the center connection point (c) so that the telescopic trajectory of the telescopic arm (30) describes a curved line.
The present invention provides a viewing object retention device which is capable of consistently positioning an object to be viewed in an optimal viewing location irrespective of the orientation of the body of a prone viewer, and which also permits adjusting the angle of the object to be viewed so as to accord with the orientation of the face of the viewer. This viewing object retention device (11) comprises: a fixed base part (12); an arm part (13), one end part whereof is rotatably linked to the base part (12), the other end part extending along an axis from said linkage toward a space above a viewer (A); a viewing object retention part (16) which is located at the other end part of the arm unit (13) and retains an object to be viewed (14); and a revolving mechanism (15) which causes angular displacement of the viewing object retention part (16) with respect to the axis commensurate with the rotation of the arm part (13), treating the linkage as a fulcrum thereof.
G09F 9/00 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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