US 12,222,008 B2
Joining of fiber-containing composite material
Tsutomu Yasui, Tokyo (JP)
Assigned to NABTESCO CORPORATION, Tokyo (JP)
Filed by NABTESCO CORPORATION, Tokyo (JP)
Filed on Feb. 6, 2023, as Appl. No. 18/165,080.
Application 18/165,080 is a division of application No. 16/549,300, filed on Aug. 23, 2019, granted, now 11,668,339.
Claims priority of application No. 2018-167876 (JP), filed on Sep. 7, 2018.
Prior Publication US 2023/0182407 A1, Jun. 15, 2023
Int. Cl. B29C 33/48 (2006.01); B29C 65/02 (2006.01); B29C 70/06 (2006.01); B29C 70/30 (2006.01); B29C 70/44 (2006.01); B64C 9/02 (2006.01); F16C 7/02 (2006.01); F16C 11/04 (2006.01); B29L 31/00 (2006.01); B29L 31/06 (2006.01)
CPC F16C 7/026 (2013.01) [B29C 65/02 (2013.01); B29C 70/06 (2013.01); B29C 70/30 (2013.01); B64C 9/02 (2013.01); F16C 11/04 (2013.01); B29L 2031/06 (2013.01); B29L 2031/75 (2013.01); F16C 2326/43 (2013.01); Y02T 50/40 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A joining method for joining a first bush and a second bush to an elongated link body, the elongated link body being made of a fiber-containing composite material, the method comprising the steps of:
(A) preparing the first bush and the second bush;
(B) preparing a core having a first leg, a second leg and a connecting portion connecting a proximal end of the first leg and a proximal end of the second leg, the second leg being longer than the first leg;
(C) obtaining a laminate by forming a fiber-containing composite material layer on the core such that an outer surface of a distal end of the second leg is not covered by the fiber-containing composite material layer;
(D1) inserting a distal end of the first leg covered by the fiber-containing composite material layer into a first hole of the first bush;
(D2) inserting at least part of the second leg covered by the fiber-containing composite material layer into a second hole of the second bush such that the distal end of the second leg protrudes from the second hole;
(E) causing expansion of the core; and
(F) obtaining the elongated link body in a shape to fit in the first hole of the first bush and in the second hole of the second bush by curing the fiber-containing composite material layer.