JP2006341463A - Adhesive structure and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an adhesive structure capable of reducing a manufacturing error in a case that a plurality of members to be bonded, of which the outer shapes are trimmed after molding, are aligned to be bonded by the adhesive means interposed between the surfaces to be bonded of the members to be bonded, and its manufacturing method. <P>SOLUTION: The adhesive structure 10 comprises two members 11 and 12 to be bonded, wherein the respective members 11 and 12 to be bonded are arranged so that the adhesive surfaces 13 and 14 of them are opposed to each other. A plurality of columnar parts 17 extending toward the second member 12 to be bonded are formed to the first member 11 to be bonded. Further, the insertion holes 18 corresponding to the respective columnar parts 17 are formed to the second member 12 to be bonded and, when the respective members 11 and 12 to be bonded are aligned mutually, the small diameter parts 17b of the respective columnar parts 17 are inserted in the respective insertion holes 18. Then, the respective members 11 and 12 to be bonded are integrated through the adhesive layer 15 comprising an adhesive interposed between the adhesive surfaces 13 and 14. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an adhesive structure integrated by adhering the members to be bonded with the bonding surfaces of a plurality of members to be bonded facing each other, with an adhesive means interposed between the bonding surfaces, and the bonding structure. The present invention relates to a method for manufacturing a body.

Generally, the bonding structure is formed by bonding a plurality of bonded members with an adhesive (for example, an adhesive made of an epoxy resin). As a method for manufacturing such an adhesive structure, first, an adherend member made of resin or the like is formed, and then the adherend member is trimmed to adjust the outer shape of the adherend member (for example, Patent Document 1). . That is, the adherend member is installed at a predetermined position of the trimming jig, and the adherend member is trimmed based on the outer shape of the adherend member. Then, in a state where the bonded surfaces of the trimmed bonded members are opposed to each other, the bonded members are aligned with respect to their outer shapes, and then interposed between the bonded surfaces. The bonded structure is manufactured by bonding each member to be bonded with an adhesive layer (bonding means) made of
JP 2004-237535 A

  By the way, in the manufacturing method of the bonded structure described above, after the member to be bonded is molded, the member to be bonded is removed from the mold for molding and placed at a predetermined position of the trimming jig, and the member to be bonded is obtained. The member to be bonded is trimmed with a trimming jig on the basis of the outer shape. For this reason, when the outer shape of the bonded member to be trimmed has a dimensional error due to a flash or the like, the reference for trimming the bonded member with a trimming jig has an error. There is a possibility that the outer shape (outer shape) of the bonded member cannot be trimmed accurately. Therefore, there is a problem in that a manufacturing error also occurs in the bonded structure in which the bonded members whose outer shapes are trimmed inaccurately are aligned with respect to each other as a reference.

  The present invention has been made in view of such circumstances, and its purpose is to align a plurality of adherend members whose outer shapes are trimmed after molding in a state in which their adhesive surfaces face each other, An object of the present invention is to provide a bonded structure and a method for manufacturing the bonded structure that can reduce manufacturing errors when bonded by bonding means interposed between the bonded surfaces.

  In order to achieve the above object, the invention according to claim 1 relating to an adhesive structure is characterized in that the adhesive surfaces of a plurality of members to be bonded are opposed to each other, and each of the objects to be bonded is provided by an adhesive means interposed between the bonding surfaces. An adhesive structure in which adhesive members are integrated, and a reference portion serving as a reference for trimming the at least one member to be bonded is provided on the bonding surface of at least one member to be bonded among the members to be bonded. This is the gist.

  Therefore, according to the first aspect of the present invention, at least one member to be bonded among the members to be bonded is trimmed with reference to a reference portion whose outer shape (outer shape) is provided on the bonding surface. Therefore, unlike the conventional case of trimming on the basis of the outer shape, it is possible to reduce the dimensional error of the outer shape of the bonded member that has been trimmed.

  According to a second aspect of the present invention, in the bonded structure according to the first aspect, the other adherends are arranged such that the at least one adherend member and the adhering surfaces face each other among the adherend members. The gist of the invention is that an alignment portion that is aligned with the reference portion when the members to be bonded are bonded is provided on the bonding surface of the member.

  Therefore, in the invention described in claim 2, when bonding the members to be bonded, the reference surfaces provided on the bonding surfaces and the alignment portions are aligned so that the bonding surfaces face each other. If it adheres in a state, the manufacturing error of the adhesion structure consisting of each member to be adhered can be reduced.

  According to a third aspect of the present invention, in the bonded structure according to the second aspect, the reference portion is a convex portion provided on the bonding surface of the at least one member to be bonded, and the alignment portion is The gist of the present invention is an insertion hole or an insertion hole provided on the bonding surface of the other member to be bonded corresponding to the convex portion. Therefore, in the invention according to claim 3, when aligning each member to be bonded, only the convex portion of at least one member to be bonded is inserted into the insertion hole or the insertion hole of another member to be bonded. Therefore, alignment of each member to be bonded can be easily performed.

  According to a fourth aspect of the present invention, in the bonded structure according to any one of the first to third aspects, the at least one member to be bonded is impregnated with a resin in a reinforcing fiber sheet containing reinforcing fibers. The gist of the present invention is that the adherend member main body is formed, and the reference portion is integrally formed of the resin with the adherend member main body. Therefore, in the invention described in claim 4, the reinforcing fiber is included in the adherend member main body, but the reinforcing fiber is not included in the reference portion. Therefore, it is possible to easily cope with the case where the shape of the reference portion is changed with respect to the shape of the alignment portion of the other member to be bonded.

  According to a fifth aspect of the present invention, in the bonded structure according to any one of the first to fourth aspects, the bonded members are bonded to the bonding surface of the at least one bonded member. In doing so, the gist is that a spacer portion for forming a gap having a predetermined interval is integrally formed with the bonding surface of the other member to be bonded. Therefore, in the invention according to claim 5, when the members to be bonded are arranged so that the bonding surfaces thereof face each other, the spacer portions provided on at least one member to be bonded are provided between the bonding surfaces. A space for interposing the adhering means is formed. Therefore, it is not necessary to provide a spacer member having a separate structure from the member to be bonded, and the manufacturing process can be reduced satisfactorily. Further, it is possible to eliminate a mistake in the manufacturing process of forgetting to install the spacer member.

  On the other hand, in the invention according to claim 6 concerning the manufacturing method of the bonded structure, the bonded surfaces of a plurality of bonded members are opposed to each other, and the bonded members are bonded by bonding means interposed between the bonded surfaces. In the manufacturing method of the bonded structure to be integrated, a reference portion is provided on the bonding surface of at least one of the members to be bonded, and the bonding surfaces of the at least one member to be bonded face each other. An alignment portion corresponding to the reference portion is provided on the bonding surface of the other bonded member arranged in this manner, and the at least one bonded member is trimmed with the reference portion as a reference, and then the at least one bonded member is trimmed. The bonding surface of one bonded member and the bonding surface of the other bonded member are opposed to each other by aligning the reference portion and the alignment portion, and then interposed between the bonding surfaces of the bonded members. Said contact And summarized in that which is adapted to adhere the respective bonded component by means.

  Therefore, in the invention described in claim 6, since it is not necessary to provide the trimming reference and the alignment reference for each member to be bonded separately, it is possible to avoid complication of the structure of the member to be bonded.

  According to the present invention, when a plurality of members to be bonded whose outer shapes are trimmed after molding are aligned with their bonding surfaces facing each other, and bonded by bonding means interposed between the bonding surfaces. Manufacturing error can be reduced.

  Hereinafter, an embodiment embodying the present invention will be described with reference to FIGS. In the following description of the present specification, the “vertical direction” indicates the vertical direction in FIG.

  As shown in FIGS. 1 and 2, the bonding structure 10 of the present embodiment includes a plurality (two in the present embodiment) of adherend members 11 and 12. Each of the members to be bonded 11 and 12 is disposed so that their bonding surfaces 13 and 14 face each other, and an adhesive (in this embodiment, an adhesive made of an epoxy resin) is bonded between these bonding surfaces 13 and 14. Agent). That is, an adhesive layer (adhesive means) 15 for bonding the adherend members 11 and 12 is formed between the adhesive faces 13 and 14 of the adherend members 11 and 12. In the following description, among the adherend members 11, 12, the adherend member 11 positioned below is referred to as the “first adherend member”, and the adherend member 12 located above is referred to as the “second adherend member”. It may be indicated as “adhesive member”.

  The first adherend member 11 is a plurality of (four in FIG. 3) reinforcing fiber sheets (also referred to as “preforms”) 16 (see FIG. 3) including reinforcing fibers (long fibers) such as glass fibers. It is made of a reinforced fiber plastic impregnated with a thermosetting resin (in this embodiment, an epoxy resin) and cured. In addition, the 1st to-be-adhered member 11 of this embodiment is shape | molded by the resin transfer molding method (RTM method).

  The first adherend member 11 includes an adherend member main body 11a and a plurality (four in this embodiment) of columnar shapes extending from the adherent surface 13 toward the adherent surface 14 of the second adherend member 12. A portion (convex portion) 17 is provided. As shown in FIG. 2, each of the columnar portions 17 has a large-diameter portion 17a having a substantially cylindrical shape on the base end side (lower side) and a distal end side (upper side) that is larger than the large-diameter portion 17a. The small diameter portion 17b has a small diameter. Each columnar portion 17 is integrally formed with the adherend member main body 11a.

  A plurality (four in this embodiment) of insertion holes 18 are formed on the bonding surface 14 of the second bonded member 12 corresponding to the columnar portions 17 of the first bonded member 11. Yes. Each of the insertion holes 18 has a substantially circular shape, and the diameter thereof is smaller than the diameter of the large diameter portion 17a of the columnar portion 17 and larger than the diameter of the small diameter portion 17b. Has been. Therefore, in each insertion hole 18, the small diameter part 17b of the columnar part 17 in the 1st to-be-adhered member 11 corresponding to each said through-hole 18 is penetrated, and each to-be-adhered member A gap having a predetermined width is formed by the large diameter portion 17 a of each columnar portion 17 between the adhesive surfaces 13 and 14 of 11 and 12.

  Therefore, in this embodiment, when the small diameter portion 17b of each columnar portion 17 bonds the members to be bonded 11 and 12, the first member to be bonded (at least one member to be bonded) 11 and the second member to be bonded. It functions as a reference portion serving as a reference for alignment with the adhesive member (other member to be bonded) 12. Further, the large-diameter portion 17 a of each columnar portion 17 functions as a spacer portion that forms a gap for interposing an adhesive layer (adhesive means) 15 between the adherend members 11 and 12. And each insertion hole 18 of the 2nd to-be-adhered member 12 functions as an alignment part corresponding to the small diameter part (reference | standard part) 17b of each said columnar part 17. As shown in FIG.

  In addition, an internal tooth-shaped tooth washer 19 is fitted to the small diameter portion 17b of each columnar portion 17 in the first adherend member 11 in a state where the adherend members 11 and 12 are aligned. Has been. Each of these tea washers 19 regulates relative movement of the first adherend member 11 and the second adherend member 12 before the adhesive forming the adhesive layer 15 is completely cured. Is.

Next, the manufacturing method of the adhesion structure 10 of this embodiment is demonstrated below based on FIG.
As shown in FIG. 3, the RTM method manufacturing apparatus 20 includes a concave mold (lower mold) 21 installed below and a convex mold (upper mold) 22 installed above. A resin supply passage 23 for supplying a thermosetting resin into the recess (cavity) 21a of the concave mold 21 is formed therethrough. And when manufacturing the 1st to-be-adhered member 11 with this manufacturing apparatus 20, first, the multiple sheets (four sheets) of the said reinforcing fiber sheets 16 are accommodated in the recessed part 21a of the concave mold 21 in the lamination | stacking state. Then, the pressing of the reinforcing fiber sheets 16 with the concave mold 21 is started by moving the convex mold 22 downward, and the inside of the concave section (cavity) 21a is evacuated by a suction pump (not shown). Further, a thermosetting resin is supplied from the outside into the concave portion (cavity) 21 a of the concave die 21 through a resin supply passage 23 formed through the convex die 22. Then, when each reinforced fiber sheet 16 is impregnated with a thermosetting resin and the thermosetting resin (and the reinforced fiber sheet 16) in the concave portion (cavity) 21a is heated through the concave mold 21 and the convex mold 22 in that state, The thermosetting resin is thermoset.

  Thereafter, after the thermosetting resin is sufficiently cured, the convex mold 22 is retracted upward, and the first bonded member 11 is released from the concave portion 21 a of the concave mold 21. Note that a hole 24 corresponding to the columnar portion 17 of the first adherend member 11 is formed in the bottom surface 21b of the recess 21a of the recess 21 and is supplied into the recess 21a into the hole 24. A thermosetting resin flows in and thermosets. Accordingly, each columnar portion 17 of the adherend member 11 does not include reinforcing fibers.

  Then, trimming of the first bonded member 11 molded by the manufacturing apparatus 20 is performed. That is, a trimming jig (not shown) supports each columnar portion 17 (small diameter portion 17b) of the first adherend member 11 released from the concave portion 21a of the concave die 21. In this state, the first workpiece The adhesive member 11 (adhered member main body 11a) is trimmed to adjust its outer shape (outer shape). At this time, since the first adherend member 11 is trimmed with reference to each columnar portion 17, the trimmed first adherend member 11 is formed so as to reduce the dimensional error of its outer shape.

  And next, alignment of each to-be-adhered member 11 and 12 is performed on the basis of the small diameter part 17b of each columnar part 17 in the 1st to-be-adhered member 11. FIG. That is, the small-diameter portion 17b of each columnar portion 17 in the first adherend member 11 is inserted into each insertion hole 18 of the second adherend member 12, and the adhesion surfaces 13, 12 of the adherend members 11 and 12, respectively. 14, gaps are formed at regular intervals corresponding to the height of the large-diameter portion 17 a of each columnar portion 17. Next, a tea washer 19 is fitted in each of the small diameter portions 17b of the columnar portions 17 so as to restrict the relative movement of the first adherend member 11 from the second adherend member 12. Is done. Then, an adhesive layer 15 is formed between the adhesive surfaces 13 and 14 by an adhesive previously applied to at least one of the adhesive surfaces 13 and 14. Thereafter, when the adhesive layer 15 (adhesive) is completely cured, the adhesive structure 10 is completed.

Therefore, in this embodiment, the following effects can be obtained.
(1) The first member to be bonded (at least one member to be bonded) 11 is trimmed based on the small diameter portion (reference portion) 17b of the columnar portion 17 whose outer shape (outer shape) is provided on the bonding surface 13. Is done. Therefore, unlike the conventional case where trimming is performed based on the outer shape, the dimensional error of the outer shape of the first adherend member 11 that has been trimmed can be reduced. Therefore, even if the trimmed first adherend member 11 and the second adherend member 12 are aligned on the basis of the outer shape of each adherend member 11, 12, the distance between the respective adherent surfaces 13, 14 The manufacturing error in the case of bonding by the bonding layer (bonding means) 15 interposed between the two can be reduced.

  (2) When each member to be bonded 11 and 12 is bonded, the small diameter portion (reference portion) 17b and the insertion hole (alignment portion) 18 of the columnar portion 17 provided on the bonding surfaces 13 and 14 are used. If the bonding is performed in a state where the bonding surfaces 13 and 14 are opposed to each other, the manufacturing error of the bonding structure 10 including the bonded members 11 and 12 can be reduced.

  (3) When aligning each of the members to be bonded 11 and 12, the small-diameter portion 17b of each columnar portion 17 in the first member to be bonded (at least one member to be bonded) 11 is replaced with the second member to be bonded. (Other members to be bonded) 12 are inserted into the respective insertion holes 18. Therefore, it is possible to easily align the respective adherend members 11 and 12.

  (4) In the first member to be bonded 11, reinforcing fibers are included in the bonded member main body 11 a, but reinforcing fibers are included in the small diameter portions (reference portions) 17 b of the columnar portions 17. Absent. Therefore, it can be easily changed when the shape of the small diameter portion 17b of each columnar portion 17 is changed corresponding to the shape of the insertion hole 18 of the second bonded member 12.

  (5) When each of the members to be bonded 11 and 12 is disposed so that their bonding surfaces 13 and 14 face each other, each columnar shape provided on the first member to be bonded (at least one member to be bonded) 11 By the large diameter portion (spacer portion) 17a of the portion 17, a space for interposing the adhesive layer (adhesive means) 15 is surely formed between the adhesive surfaces 13 and 14. Therefore, it is not necessary to provide a spacer member having a separate structure from the first adherend member 11, and the manufacturing process can be reduced satisfactorily. Further, it is possible to eliminate a mistake in the manufacturing process of forgetting to install the spacer member.

  (6) When the respective adherend members 11 and 12 are aligned, each insertion hole 18 of the second adherend member 12 has a large-diameter portion 17a of each columnar portion 17 in the first adherend member 11. It is blocked by. Therefore, it is possible to prevent the adhesive from leaking from the insertion holes 18 to the upper surface side of the second bonded member 12 between the bonding surfaces 13 and 14 of the bonded members 11 and 12.

  (7) In a state in which the respective adherend members 11 and 12 are aligned, the tea washer 19 is fitted into the small diameter portion 17b of each columnar portion 17 in the first adherend member 11. Therefore, before the adhesive layer 15 (adhesive) interposed between the adhesive surfaces 13 and 14 of the adherend members 11 and 12 is completely cured, the first adherend member 11 and the second adherend member 12 Can be controlled without using a dedicated jig.

The embodiment may be changed to another embodiment (another example) as follows.
In the above embodiment, the first adherent member 11 may be separately provided with a columnar portion 30 and a spacer portion 31 as a reference portion, as shown in FIG.

  In addition, the first bonded member 11 does not have to be integrally formed with the bonded member main body 11a with a portion that functions as a spacer portion. In this case, as shown in FIG. 5, it is desirable to dispose a spacer member 32 between the bonding surfaces 13 and 14 when aligning the bonded members 11 and 12.

(Circle) in the said embodiment, the 1st to-be-adhered member 11 may be arbitrary materials (for example, the plastics which consist of a thermoplastic resin) instead of a fiber reinforced plastic.
In the embodiment, the thermosetting resin impregnated in each reinforcing fiber sheet 16 may be any thermosetting resin (for example, unsaturated polyester resin).

In the embodiment, the reinforcing fiber included in the reinforcing fiber sheet 16 may be any reinforcing fiber (for example, carbon fiber).
In the above embodiment, as shown in FIG. 6, the second adherend member 12 has an insertion hole 18 as an alignment portion corresponding to the small diameter portion 17 b of the columnar portion 17 in the first adherend member 11. Alternatively, the insertion hole 33 may be provided.

In the embodiment, the convex portion functioning as the reference portion in the first bonded member 11 may be a protrusion instead of a columnar shape.
In the above embodiment, the reference portion may be a reference hole 34 as shown in FIG. In this case, when aligning each of the adherend members 11 and 12, the insertion hole 18 of the second adherend member 12, the hole 32a of the spacer member 32, and the reference member for the first adherend member 11 are used. It is desirable to provide a shaft 35 that passes through the hole 34.

The perspective view of the adhesion structure in this embodiment. FIG. 2 is a sectional view taken along line 2-2 in FIG. 1. The conceptual diagram of the manufacturing apparatus of RTM method. Sectional drawing which shows a part of adhesion structure of another example. Sectional drawing which shows a part of adhesion structure of another example. Sectional drawing which shows a part of adhesion structure of another example. Sectional drawing which shows a part of adhesion structure of another example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Adhesive structure, 11 ... 1st to-be-adhered member (at least 1 to-be-adhered member), 11a ... Adhered member main body, 12 ... 2nd to-be-adhered member (other to-be-adhered members), 13, 14 ... Adhesion surface, 15 ... Adhesive layer (adhesion means), 16 ... Reinforcing fiber sheet, 17a ... Large diameter part (spacer part) of the columnar part, 17b ... Small diameter part (reference part, convex part) of the columnar part, 18 ... Insertion hole (Positioning part), 30 ... columnar part (reference part, convex part), 31 ... spacer part, 33 ... insertion hole (positioning part), 34 ... reference hole (reference part).

Claims (6)

A bonding structure in which the bonding surfaces of a plurality of bonded members are opposed to each other, and the bonded members are integrated by bonding means interposed between the bonding surfaces,
A bonding structure in which a reference portion serving as a reference when trimming the at least one member to be bonded is provided on the bonding surface of at least one member to be bonded among the members to be bonded. When adhering each of the members to be bonded to the bonding surface of the other members to be bonded, the at least one member to be bonded and the bonding surfaces of the members to be bonded face each other. The adhesive structure according to claim 1, further comprising an alignment portion that is aligned with the first and second alignment portions. The reference portion is a convex portion provided on the bonding surface of the at least one bonded member, and the alignment portion is provided on the bonding surface of the other bonded member corresponding to the convex portion. The adhesion structure according to claim 2 which is an insertion hole or an insertion hole. The at least one bonded member has a bonded member main body formed by impregnating a reinforcing fiber sheet containing reinforcing fibers with a resin, and the reference portion is integrated with the bonded member main body by the resin. The adhesion structure according to any one of claims 1 to 3, wherein the adhesion structure is formed. The bonding surface of the at least one member to be bonded is integrally formed with a spacer portion for forming a gap of a predetermined distance from the bonding surface of the other member to be bonded when the members to be bonded are bonded. The adhesion structure according to any one of claims 1 to 4, wherein the adhesion structure is formed. A method of manufacturing an adhesive structure in which the bonding surfaces of a plurality of bonded members are opposed to each other, and the respective bonded members are integrated by bonding means interposed between the bonding surfaces,
An adhesive surface of another member to be bonded that is provided such that a reference portion is provided on the bonding surface of at least one member to be bonded among the members to be bonded, and the bonding surface is opposed to the at least one member to be bonded. Is provided with an alignment portion corresponding to the reference portion, the at least one member to be bonded is trimmed based on the reference portion, and then the bonding surface of the at least one member to be bonded and the other bonding target The reference surface and the alignment portion are aligned with the bonding surface of the member so as to face each other, and then the bonded members are bonded by the bonding means interposed between the bonding surfaces of the bonded members. A method for manufacturing an adhesive structure.

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