# US 9,751,266 B2 · Repair method of repair target portion, and repair apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,751,266 B2 - Document ID: US9751266B2 - Status: Granted - Kind: B2 - Application number: 14/227,362 - Filed: 2014-03-27 - Published: 2014-10-02 - Granted: 2017-09-05 - Earliest claimed: 2013-03-28 - Assignees: Mitsubishi Aircraft Corporation - Applicants: Mitsubishi Aircraft Corporation - Inventors: Kiwamu Arikawa; Masayoshi Suhara; Hiroyuki Iseki; Shuhei Muto - Web page: https://patentgrep.com/patent/US9751266B2 ## CPC - B29C 73/10: using patches sealing on the surface of the article (B29C73/14 takes precedence) - B29C 73/12: Apparatus therefor, e.g. for applying (B29C73/30 takes precedence) - B29C 73/30: for local pressing or local heating - B29C 73/34: for local heating - B29C 2035/0855: {using microwave} - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) ## Abstract The present invention sufficiently heats a repairing material while preventing change in quality of a base material provided with the repairing material so as to securely bond the repairing material to a repair target portion. The repair method of the present invention, in order to repair a repair target portion 14 existing in an outer panel 1, includes a repairing material disposing step of disposing a repairing patch 20 and an adhesive 21A to the repair target portion 14; and a heating-hardening step of heating and hardening the adhesive 21A by irradiating it with electromagnetic waves. ## Claims ### Claim 1 A method of repairing a repair target portion existing in a repair target, the method comprising: a repairing material disposing step of disposing a repairing material to the repair target portion; and a heating-hardening step of heating and hardening the repairing material by irradiating the repairing material with electromagnetic waves, wherein in the repairing material disposing step, a second shield member for blocking the electromagnetic waves is disposed between the repairing material and the repair target, and wherein the heating-hardening step further comprises irradiating a portion of the second shield member with the electromagnetic waves without heating the second shield member to a temperature reached by the repairing material in response to being irradiated with the electromagnetic waves. ### Claim 2 (depends on 1) The method of repairing a repair target portion according to claim 1, wherein in the heating-hardening step, the repairing material and an oscillator that oscillates the electromagnetic waves are covered by a first shield member for blocking the electromagnetic waves. ### Claim 3 (depends on 1) The method of repairing a repair target portion according to claim 1, wherein a honeycomb core sandwich panel configured by holding a core having a honeycomb structure including a number of cells between outer skins is repaired as the repair target. ### Claim 4 (depends on 1) The method of repairing a repair target portion according to claim 1, wherein the heating-hardening step is performed using an irradiator for radiating electromagnetic waves so as to heat the repairing material disposed to the repair target portion. ### Claim 5 (depends on 4) The method of repairing a repair target portion according to claim 4, wherein the irradiator comprises: an oscillator for oscillating the electromagnetic waves; and a first shield member for covering the repairing material and the oscillator so as to block the electromagnetic waves. ### Claim 6 (depends on 4) The method of repairing a repair target portion according to claim 4, wherein the irradiator further comprises the second shield member disposed between the repairing material and the repair target so as to block the electromagnetic waves. ### Claim 7 (depends on 5) The method of repairing a repair target portion according to claim 5, wherein the irradiator further comprises the second shield member disposed between the repairing material and the repair target so as to block the electromagnetic waves. ### Claim 8 (depends on 1) The method of repairing a repair target portion according to claim 1, the repair target portion existing in a honeycomb core sandwich panel configured by holding a core having a honeycomb structure including a number of cells between outer skins, the honeycomb core sandwich panel being the repair target, the method comprising: disposing an oscillator of electromagnetic waves on a side of one of the outer skins of the honeycomb core sandwich panel; disposing a shield member for blocking the electromagnetic waves on a side of the other of the outer skins of the honeycomb core sandwich panel; performing a moisture releasing step of vaporizing moisture existing inside the core using the electromagnetic waves radiated from the oscillator, and releasing the moisture from the repair target portion to an outside of the core; and thereafter, performing a heating-hardening step of hardening a repairing material disposed to the repair target portion by heating. ### Claim 9 A method of repairing a repair target portion existing in a repairing target, the method comprising: a repairing material disposing step of disposing a repairing material to the repair target portion; and a step of heating and melting the repairing material by irradiating the repairing material with electromagnetic waves, and thereafter putting the repairing material into a solidified state, wherein in the repairing material disposing step, a second shield member for blocking the electromagnetic waves is disposed between the repairing material and the repair target, and in the step of heating, the electromagnetic waves irradiating the repairing material induce heat within the repairing material causing the repairing material to reach a melting temperature without significantly inducing heat in the second shield member. ### Claim 10 (depends on 9) The method of repairing a repair target portion according to claim 9, wherein the step of heating and melting is performed using an irradiator for radiating electromagnetic waves so as to heat the repairing material disposed to the repair target portion. ### Claim 11 (depends on 10) The method of repairing a repair target portion according to claim 10, wherein the irradiator comprises: an oscillator for oscillating the electromagnetic waves; and a first shield member for covering the repairing material and the oscillator so as to block the electromagnetic waves. ### Claim 12 (depends on 10) The method of repairing a repair target portion according to claim 10, wherein the irradiator further comprises the second shield member disposed between the repairing material and the repair target so as to block the electromagnetic waves. ### Claim 13 (depends on 11) The method of repairing a repair target portion according to claim 11, wherein the irradiator further comprises the second shield member disposed between the repairing material and the repair target so as to block the electromagnetic waves. ### Claim 14 (depends on 8) The method of repairing a repair target portion according to claim 8, wherein in the heating-hardening step, the repairing material and an oscillator that oscillates the electromagnetic waves are covered by a first shield member for blocking the electromagnetic waves. ### Claim 15 (depends on 8) The method of repairing a repair target portion according to claim 8, wherein the heating-hardening step is performed using an irradiator for radiating electromagnetic waves so as to heat the repairing material disposed to the repair target portion. ### Claim 16 (depends on 11) The method of repairing a repair target portion according to claim 11, wherein the irradiator comprises: an oscillator for oscillating the electromagnetic waves; and a first shield member for covering the repairing material and the oscillator so as to block the electromagnetic waves. ### Claim 17 (depends on 11) The method of repairing a repair target portion according to claim 11, wherein the irradiator further comprises the second shield member disposed between the repairing material and the repair target so as to block the electromagnetic waves.