Title:
EXTENDABLE ARM STRUCTURE
Document Type and Number:
Japanese Patent JP2019184031
Kind Code:
A
Abstract:
To provide an extendable arm structure having a high use value in various applications of the industry.SOLUTION: An extendable arm structure (10) includes: an upper extendable arm (11) and a lower extendable arm (12) which extend in the same direction at a parallel interval; and vertical connection members that connect the upper and lower extendable arms. Each of the extendable arms (11, 12) includes a plurality of X-shaped cross units each formed by pivotally connecting two rigid members (11a, 11b, 12a, 12b) via middle connection shafts (11c, 12c), and two end connection shafts (11d, 12d) that pivotally connect ends of adjacent ones of the cross units. The extendable arm structure (10) further includes a planar member (13) that closes, in a planar manner, a space between the rigid members (11a, 11b) of the upper extendable arm and the rigid members (12a, 12b) of the lower extendable arm which extends parallel to the rigid member of the upper extendable arm in the same direction.SELECTED DRAWING: Figure 1
Inventors:
MATSUOKA NORIYASU
Application Number:
JP2018078965A
Publication Date:
October 24, 2019
Filing Date:
April 17, 2018
Export Citation:
Assignee:
FUJIMIYA SEISAKUSHO KK
International Classes:
F16S3/08; E04B1/344
Domestic Patent References:
| JPS503323U | 1975-01-14 | |||
| JP2008308940A | 2008-12-25 |
Foreign References:
| AU2009100180A4 | 2009-03-26 | |||
| WO1991005921A1 | 1991-05-02 | |||
| CN106245778A | 2016-12-21 |
Attorney, Agent or Firm:
Patent Business Corporation Imy International Patent Office