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1. WO2019018546 - DEPLOYABLE KIRIFORM FLEXURES

Publication Number WO/2019/018546
Publication Date 24.01.2019
International Application No. PCT/US2018/042719
International Filing Date 18.07.2018
IPC
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
53
Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
36
Bending and joining, e.g. for making hollow articles
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
C
SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
53
Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
80
Component parts, details or accessories; Auxiliary operations
B PERFORMING OPERATIONS; TRANSPORTING
81
MICRO-STRUCTURAL TECHNOLOGY
C
PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICRO-STRUCTURAL DEVICES OR SYSTEMS
1
Manufacture or treatment of devices or systems in or on a substrate
E FIXED CONSTRUCTIONS
04
BUILDING
H
BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
12
Towers; Masts, poles; Chimney stacks; Water-towers; Methods of erecting such structures
18
movable or with movable sections, e.g. rotatable, telescopic
B PERFORMING OPERATIONS; TRANSPORTING
65
CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
H
HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
45
Folding thin material
02
Folding limp material without application of pressure to define or form crease lines
04
Folding sheets
B PERFORMING OPERATIONS; TRANSPORTING
32
LAYERED PRODUCTS
B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
3
Layered products essentially comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products essentially having particular features of form
10
characterised by a discontinuous layer, i.e. apertured or formed of separate pieces of material
B29C 53/36 (2006.01)
B29C 53/80 (2006.01)
B81C 1/00 (2006.01)
E04H 12/18 (2006.01)
B65H 45/04 (2006.01)
B32B 3/10 (2006.01)
CPC
B29C 53/36
B29C 53/80
B32B 3/10
B42D 15/008
B81B 2203/053
B81B 3/0097
Applicants
  • PRESIDENT AND FELLOWS OF HARVARD COLLEGE [US/US]; 17 Quincy Street Cambridge, Massachusetts 02138, US
Inventors
  • MHATRE, Saurabh; US
  • BECHTOLD, Martin; US
  • SAYEGH, Allen; US
Agents
  • SAYRE, Robert; US
Priority Data
62/534,10918.07.2017US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DEPLOYABLE KIRIFORM FLEXURES
(FR) FLEXIONS DE KIRIFORM DÉPLOYABLES
Abstract
(EN)
A deployable Kiriform flexure includes first and second sections. The first section of the Kiriform flexure includes a plurality of curved fins arranged about a central axis. The second section of the Kiriform flexure includes a plurality of curved fins arranged about a central axis. Each fin of the second section is joined with a fin of the first section such that the first and second sections share a common central axis in a configuration that produces out-of-plane elastic buckling of the fins to actuate the Kiriform flexure from a substantially flat structure that extends substantially only in two dimensions orthogonal to the central axis to an expanded structure extending substantially in a third dimension parallel to the central axis when at least one of the first and second sections is rotated relative to the other section.
(FR)
La présente invention concerne une flexion de Kiriform déployable qui comprend des première et deuxième sections. La première section de la flexion de Kiriform comprend une pluralité d’ailettes incurvées agencées autour d’un axe central. La deuxième section de la flexion de Kiriform comprend une pluralité d’ailettes incurvées agencées autour d’un axe central. Chaque ailette de la deuxième section est assemblée à une ailette de la première section de sorte que les première et deuxième sections partagent un axe central commun dans une configuration qui produit un flambage élastique hors du plan des ailettes de façon à actionner la flexion de Kiriform d’une structure sensiblement plate qui s’étend sensiblement uniquement dans deux dimensions orthogonales à l’axe central à une structure étendue s’étendant sensiblement dans une troisième dimension parallèle à l’axe central lorsqu’au moins l’une des première et deuxième sections est tournée par rapport à l’autre section.
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