JPH06313437A - Joining structure of frp shaft and joint - Google Patents
Joining structure of frp shaft and jointInfo
- Publication number
- JPH06313437A JPH06313437A JP5127885A JP12788593A JPH06313437A JP H06313437 A JPH06313437 A JP H06313437A JP 5127885 A JP5127885 A JP 5127885A JP 12788593 A JP12788593 A JP 12788593A JP H06313437 A JPH06313437 A JP H06313437A
- Authority
- JP
- Japan
- Prior art keywords
- joint
- shaft
- frp
- adhesive
- fitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005304 joining Methods 0.000 title abstract description 14
- 239000000853 adhesive Substances 0.000 claims description 45
- 230000001070 adhesive effect Effects 0.000 claims description 43
- 239000002184 metal Substances 0.000 claims description 6
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 14
- 238000010526 radical polymerization reaction Methods 0.000 description 37
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 13
- 238000000034 method Methods 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 239000011347 resin Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 239000012783 reinforcing fiber Substances 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000000835 fiber Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 229920000049 Carbon (fiber) Polymers 0.000 description 4
- 239000004917 carbon fiber Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 229920002292 Nylon 6 Polymers 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229920003319 Araldite® Polymers 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009730 filament winding Methods 0.000 description 2
- 229920006337 unsaturated polyester resin Polymers 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- OWYWGLHRNBIFJP-UHFFFAOYSA-N Ipazine Chemical compound CCN(CC)C1=NC(Cl)=NC(NC(C)C)=N1 OWYWGLHRNBIFJP-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920000571 Nylon 11 Polymers 0.000 description 1
- 229920000572 Nylon 6/12 Polymers 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- ZMUCVNSKULGPQG-UHFFFAOYSA-N dodecanedioic acid;hexane-1,6-diamine Chemical compound NCCCCCCN.OC(=O)CCCCCCCCCCC(O)=O ZMUCVNSKULGPQG-UHFFFAOYSA-N 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920003192 poly(bis maleimide) Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
- B29C66/7428—Transition metals or their alloys
- B29C66/74283—Iron or alloys of iron, e.g. steel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
- B29C66/1222—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a lapped joint-segment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
- B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
- B29C66/322—Providing cavities in the joined article to collect the burr
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/61—Joining from or joining on the inside
- B29C66/612—Making circumferential joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/721—Fibre-reinforced materials
- B29C66/7212—Fibre-reinforced materials characterised by the composition of the fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
- B29C65/565—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits involving interference fits, e.g. force-fits or press-fits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/72—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by combined operations or combined techniques, e.g. welding and stitching
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7394—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoset
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/748—Machines or parts thereof not otherwise provided for
- B29L2031/75—Shafts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はＦＲＰ（Ｆｉｂｅｒ ｒ
ｅｉｎｆｏｒｃｅｄ ｐｌａｓｔｉｃ 繊維強化プラス
チック）製シャフトと継手との接合構造に係り、とくに
中空のＦＲＰ製シャフトの端部に継手を嵌合させて取付
け、接着剤で固着するようにしたＦＲＰ製シャフトと継
手との接合構造に関する。BACKGROUND OF THE INVENTION The present invention relates to FRP (Fiber r
The joint structure between the shaft made of einforced plastic (fiber reinforced plastic) and the joint, in particular, the joint of the hollow FRP shaft is fitted by fitting the joint and fixed by an adhesive. Regarding joint structure.
【０００２】[0002]
【従来の技術】ＦＲＰは比強度および比剛性に優れた材
料である。しかしＦＲＰ単独で構造材として使用される
ことは少なく、ＦＲＰ同士あるいは異種材料と接合し、
構造部材として使用されることが多い。例えば駆動軸に
ＦＲＰを適用する場合には、ＦＲＰ製のシャフトとこの
シャフトにトルクを伝えるための金属製のフランジ継手
とを接合して使用することになる。FRP is a material excellent in specific strength and specific rigidity. However, FRP alone is rarely used as a structural material, and FRPs are joined together or with different materials,
Often used as a structural member. For example, when FRP is applied to the drive shaft, a shaft made of FRP and a metal flange joint for transmitting torque to this shaft are used by being joined.
【０００３】ＦＲＰ製の中空シャフトに金属製のフラン
ジ継手を接合すると、ＦＲＰ製シャフトの軽量化効果に
よって、危険回転数が高くなるとともに、回転に伴う振
動やブレが減少する等の利点が得られることになる。When a flange joint made of metal is joined to a hollow shaft made of FRP, the weight saving effect of the shaft made of FRP has the advantages that the number of dangerous rotations is increased and vibrations and shakes accompanying rotation are reduced. It will be.
【０００４】従来の鋼製シャフトと金属製継手とを結合
する場合には、溶接によって接合されていた。溶接法に
よる接合を用いると、高い寸法精度でシャフトと継手と
を接合するとともに、その接合強度も大きくなる。しか
しＦＲＰ製シャフトと異種材料の継手との接合において
は、溶接の手法を用いることができない。そしてＦＲＰ
製シャフトと異種材料の継手との接合においては、寸法
精度が高く、しかも接合強度が高い接合方法が確立され
ていないのが現状である。When the conventional steel shaft and the metal joint are joined, they are joined by welding. If the joining by the welding method is used, the shaft and the joint are joined with high dimensional accuracy, and the joining strength is increased. However, the welding method cannot be used for joining the FRP shaft and the joint made of different materials. And FRP
Regarding the joining of the manufactured shaft and the joint of dissimilar materials, at present, a joining method with high dimensional accuracy and high joining strength has not been established.
【０００５】ＦＲＰ製シャフトと異種材料の継手との接
合に関しては、例えば特公平４−２４２３号公報に開示
されているように、金属継手の円筒挿入部の端部にリン
グ状の嵌合のきつい部分を設けたものや、特開昭６４−
４９７１９号公報に開示されているように、ＦＲＰ製パ
イプの内径よりも大きな外径を有する継手要素を圧入
し、摩擦力によって接合するようにしたものが提案され
ている。さらには特開平４−９４９２１号公報に開示さ
れているように、圧入嵌合前の継手要素の接合部外周面
の表面粗さおよび圧入嵌合前のシャフトの接合部内径と
継手要素の接合部外径の比をそれぞれ所定の値にしたも
のが提案されている。Regarding the joining of the FRP shaft and the joint of different materials, for example, as disclosed in Japanese Patent Publication No. 4-2423, a tight fitting of a ring shape is made at the end of the cylindrical insertion portion of the metal joint. Those provided with a portion, JP-A-64-
As disclosed in Japanese Patent No. 49719, there has been proposed one in which a joint element having an outer diameter larger than the inner diameter of an FRP pipe is press-fitted and joined by frictional force. Further, as disclosed in JP-A-4-94921, the surface roughness of the outer peripheral surface of the joint portion of the joint element before press-fitting and the inner diameter of the joint portion of the shaft before press-fitting and the joint portion of the joint element. It has been proposed that the ratio of the outer diameters is set to a predetermined value.
【０００６】接着剤によってＦＲＰ製シャフト１と継手
２とを接合して固着する場合には、図５および図６に示
すように、継手２のフランジ３から突出して設けられて
いる嵌合部４をＦＲＰ製シャフト１内に挿入し、嵌合部
４とＦＲＰ製シャフト１との間に接着剤５を介在させて
固着するようにしている。この場合に必要とする強度を
得るために、所要の接着剤５が充填されるようにＦＲＰ
製シャフト１と継手２との間の接合部の隙間を大きくと
るようにし、嵌合いの緩いものが使用されている。When the FRP shaft 1 and the joint 2 are bonded and fixed by an adhesive, as shown in FIGS. 5 and 6, the fitting portion 4 provided so as to protrude from the flange 3 of the joint 2 is used. Is inserted into the FRP shaft 1, and an adhesive 5 is interposed between the fitting portion 4 and the FRP shaft 1 so as to fix them. In order to obtain the strength required in this case, the FRP must be filled with the required adhesive 5.
A loose fitting is used so that a large gap is provided at the joint between the shaft 1 and the joint 2.
【０００７】あるいはまた図７および図８に示すよう
に、継手２の嵌合部４の外周面上に周溝６を形成するよ
うにし、これによって嵌合部４の周溝６が形成されてい
ない部分の嵌合いをきつくし、周溝６内に充填されてい
る接着剤５によって継手２をＦＲＰ製シャフト１に接合
するようにしている。Alternatively, as shown in FIGS. 7 and 8, a circumferential groove 6 is formed on the outer peripheral surface of the fitting portion 4 of the joint 2, whereby the circumferential groove 6 of the fitting portion 4 is formed. The fitting of the non-existing portion is made tight, and the joint 2 is joined to the FRP shaft 1 by the adhesive 5 filled in the circumferential groove 6.
【０００８】[0008]
【発明が解決しようとする課題】図５および図６に示す
接合構造は、フランジ継手２の嵌合部４がストレートな
円筒状をした継手２を用いた場合を示しており、接着剤
５を嵌合部４とシャフト１の内周面との間に充填するた
めに、嵌合部の隙間を大きくとるようにしている。しか
しこのような構造によれば、接着剤５の硬化を行なうた
めに加熱すると、接着剤５の粘度が低下して流動し易く
なり、この結果シャフト１と継手２との芯が互いにずれ
た状態で接着されることになる。また接着剤５が流出す
るとシャフト１と継手２との芯ずれとともに、接合部の
強度も低下することになる。The joint structure shown in FIGS. 5 and 6 shows the case where the fitting portion 4 of the flange joint 2 is a straight cylindrical joint 2, and the adhesive 5 is used. In order to fill the space between the fitting portion 4 and the inner peripheral surface of the shaft 1, a large gap is provided in the fitting portion. However, according to this structure, when the adhesive 5 is heated to cure it, the viscosity of the adhesive 5 is lowered and the adhesive 5 easily flows, and as a result, the cores of the shaft 1 and the joint 2 are displaced from each other. Will be glued together. Further, if the adhesive 5 flows out, the shaft 1 and the joint 2 are misaligned, and the strength of the joint portion is also reduced.
【０００９】図７および図８に示すように、周溝６以外
の部分において嵌合部４のシャフト１に対する隙間を小
さくした場合には、ＦＲＰ製シャフト１と継手２との間
の同軸度および真直度が向上することになる。しかるに
継手２をＦＲＰ製シャフト１の中に挿入して嵌合させる
際に、ＦＲＰ製シャフト１の内周面および継手２の嵌合
部４の外周面に塗布されている接着剤が掻き取られ、こ
のために接合部の隙間に残存する接着剤の量が少なくな
る。これによって隙間全体に接着剤が均一かつ十分に行
き届かなくなって嵌合部４とシャフト１の内周面との間
の接合強度が不足するという欠点を生ずる。As shown in FIGS. 7 and 8, when the gap between the fitting portion 4 and the shaft 1 in the portion other than the circumferential groove 6 is reduced, the coaxiality between the FRP shaft 1 and the joint 2 and Straightness will be improved. However, when the joint 2 is inserted into the FRP shaft 1 and fitted therein, the adhesive applied to the inner peripheral surface of the FRP shaft 1 and the outer peripheral surface of the fitting portion 4 of the joint 2 is scraped off. Therefore, the amount of the adhesive remaining in the gap between the joints is reduced. As a result, the adhesive does not reach the entire gap uniformly and sufficiently, which causes a drawback that the joint strength between the fitting portion 4 and the inner peripheral surface of the shaft 1 becomes insufficient.
【００１０】すなわち図７および図８に示すように、継
手２の嵌合部４の先端と付根に嵌合いのきつい部分を設
けることによって、精度の高い芯出しが可能になるが、
この場合にも継手２をＦＲＰ製シャフト１の内周面に嵌
合する際に、とくに先端側の嵌合いのきつい部分で嵌合
部４に塗布した接着剤を掻き取ってしまう問題がある。That is, as shown in FIGS. 7 and 8, by providing a tight fitting portion at the tip and the root of the fitting portion 4 of the joint 2, accurate centering is possible.
In this case as well, when fitting the joint 2 to the inner peripheral surface of the FRP shaft 1, there is a problem that the adhesive applied to the fitting portion 4 is scraped off, especially at the tight fitting portion on the tip side.
【００１１】従って接着剤を用いてＦＲＰ性シャフトと
継手とを接合する構造において、シャフトと継手との高
い同軸度および真直度を維持し、なおかつ接合部の強度
を高めることが大きな課題になる。Therefore, in the structure in which the FRP shaft and the joint are joined by using an adhesive, it is a major problem to maintain high coaxiality and straightness between the shaft and the joint and to increase the strength of the joint.
【００１２】本発明はこのような問題点に鑑みてなされ
たものであって、大きなトルクを伝達することが可能な
接合強度を有し、かつシャフトの同軸度および真直度に
優れたＦＲＰ製シャフトと継手との接合構造を提供する
ことを目的とするものである。The present invention has been made in view of the above problems, and has a joint strength capable of transmitting a large torque, and an FRP shaft excellent in coaxiality and straightness of the shaft. It is an object of the present invention to provide a joint structure between a joint and a joint.
【００１３】[0013]
【課題を解決するための手段】本発明は、ＦＲＰ製シャ
フトと継手との接合構造において、ＦＲＰ製シャフトの
内周面に嵌合される継手の嵌合部の先端部と根元部分と
にそれぞれ嵌合のきつい接合部を設け、しかも嵌合部の
先端側の嵌合のきつい接合部には接着剤が流入できる凹
部を周方向に沿って少なくとも３箇所以上形成するよう
にしたものであって、ＦＲＰ製シャフトの内周面と継手
の嵌合部との間に介在される接着剤によって両者を接合
して固着するようにしたＦＲＰ製シャフトと継手との接
合構造に関するものである。According to the present invention, in a joint structure of a shaft made of FRP and a joint, a tip portion and a root portion of a fitting portion of the joint fitted to an inner peripheral surface of the shaft made of FRP are respectively provided. A tight fitting portion is provided, and at the tip of the fitting portion, a tight fitting portion is provided with at least three recesses along the circumferential direction into which an adhesive can flow. The present invention relates to a joint structure of a FRP shaft and a joint, in which the inner peripheral surface of the FRP shaft and the fitting portion of the joint are joined and fixed by an adhesive agent.
【００１４】本発明においてＦＲＰ製シャフトとは、強
化繊維とマトリックス樹脂とから構成されるものであ
る。そしてシャフトの使用目的によっては、その曲げ剛
性およびねじり剛性が高く、さらに所要のねじり強度を
有する必要がある。従って強化繊維は、引張り強度およ
び引張り弾性率の高い繊維が望ましく、炭素繊維、ガラ
ス繊維、アラミド繊維、ボロン繊維、セラミック繊維等
の繊維から選ばれる１種あるいは２種以上の組合わせで
使用される。とくに比強度および比剛性に優れ、しかも
軽量化の効果が大きい炭素繊維が好ましい。In the present invention, the FRP shaft is composed of reinforcing fibers and matrix resin. Depending on the purpose of use of the shaft, its bending rigidity and torsional rigidity are high, and it is necessary to have a required torsional strength. Therefore, the reinforcing fiber is preferably a fiber having a high tensile strength and a high tensile elastic modulus, and is used in one kind or a combination of two or more kinds selected from carbon fiber, glass fiber, aramid fiber, boron fiber, ceramic fiber and the like. . Particularly preferred is carbon fiber which is excellent in specific strength and specific rigidity and has a large effect of reducing weight.
【００１５】またこのような強化繊維によって強化され
るマトリックス樹脂としては、エポキシ樹脂、ビスマレ
イミド樹脂、不飽和ポリエステル樹脂、フェノール樹
脂、ビニールエステル樹脂等の熱硬化性樹脂、ＡＢＳ樹
脂、ポリカーボネート樹脂、ポリエステル樹脂、ポリア
ミド樹脂（ナイロン６、ナイロン６・６、ナイロン６・
１０、ナイロン６・１１、ナイロン６・１２）等の熱可
塑性樹脂が挙げられる。好ましくは取扱い性に優れたエ
ポキシ樹脂や不飽和ポリエステル樹脂が使用される。As the matrix resin reinforced by such reinforcing fibers, thermosetting resins such as epoxy resin, bismaleimide resin, unsaturated polyester resin, phenol resin and vinyl ester resin, ABS resin, polycarbonate resin, polyester. Resin, polyamide resin (nylon 6, nylon 6.6, nylon 6
Thermoplastic resins such as 10, nylon 6/11 and nylon 6/12) can be used. Epoxy resin and unsaturated polyester resin which are excellent in handleability are preferably used.
【００１６】ＦＲＰ製シャフトの製造方法は従来公知の
方法で行なわれてよい。生産性および製作コストを考慮
し、フィラメントワインド法やシートワインド法が用い
られてよい。またＦＲＰ製シャフトの強化繊維の体積含
有率は４５〜７０％が好ましい。強化繊維の含有率が４
５％未満の場合には、強化繊維の含有率が低く、シャフ
トの強度および剛性が低くなる。強化繊維の含有率が７
０％を超えると、強化繊維の含有率が高いために、マト
リックス樹脂が含浸せず、かえってシャフトの強度低下
を招く欠点がある。The FRP shaft may be manufactured by a conventionally known method. The filament winding method or the sheet winding method may be used in consideration of productivity and manufacturing cost. The volume content of the reinforcing fibers in the FRP shaft is preferably 45 to 70%. Reinforcing fiber content is 4
If it is less than 5%, the reinforcing fiber content is low, and the strength and rigidity of the shaft are low. Reinforcing fiber content is 7
If it exceeds 0%, the matrix resin is not impregnated due to the high content of the reinforcing fibers, and the strength of the shaft is rather lowered.
【００１７】これに対して継手は、金属、合成樹脂、Ｆ
ＲＰ等で作られたものであってよい。そしてＦＲＰ製シ
ャフトの使用目的に応じて選択される。フランジ継手の
嵌合部の先端側および付根に設けられる嵌合いのきつい
接合部は、先端部においてはその軸線方向の接着長さの
３〜２０％の範囲内とすることが好ましい。嵌合部の先
端側の嵌合いのきつい接合部の長さが３％未満の場合に
は、シャフトと継手とを十分に固定することができず、
しかもシャフトと継手との同軸度を高い精度で得ること
ができない。また嵌合のきつい接合部の軸線方向の長さ
が２０％以上になると重量増加を招く欠点がある。On the other hand, the joint is made of metal, synthetic resin, F
It may be made of RP or the like. Then, it is selected according to the purpose of use of the FRP shaft. The tight-fitting joint portion provided on the tip side and the root of the fitting portion of the flange joint is preferably within the range of 3 to 20% of the bonding length in the axial direction at the tip portion. If the length of the tight fitting joint on the tip side of the fitting portion is less than 3%, the shaft and the joint cannot be sufficiently fixed,
Moreover, the coaxiality between the shaft and the joint cannot be obtained with high accuracy. Further, if the length of the tightly joined joint portion in the axial direction is 20% or more, there is a drawback that the weight is increased.
【００１８】次に継手の嵌合部の根元側の嵌合のきつい
接合部の軸線方向の長さは３〜２０％の範囲内とするこ
とが好ましい。付根部分の嵌合のきつい接合部の長さが
３％未満の場合には、シャフトと継手の嵌合部との固定
を十分に行なうことができず、シャフトと継手との両者
の間の相互の同軸度が得られない。また根元部分の嵌合
のきつい接合部を軸線方向において２０％以上占めるよ
うにすると重量増加および接着面積の低下による強度不
足を招くことになる。Next, the length in the axial direction of the tightly joined portion on the base side of the fitting portion of the joint is preferably within the range of 3 to 20%. If the length of the tightly joined portion of the root portion is less than 3%, the shaft and the fitting portion of the joint cannot be sufficiently fixed, and the shaft and the joint cannot be fixed to each other. The coaxiality of is not obtained. Further, if the joint portion where the root portion is tightly fitted occupies 20% or more in the axial direction, the strength is insufficient due to an increase in weight and a decrease in the bonding area.
【００１９】フランジ継手の嵌合部先端側の接着剤が流
動できる凹部を有する嵌合いのきつい接合部はＦＲＰ製
シャフトの形状や材質、長さ、外径、内径等を考慮する
とともに、フランジ継手側においても、その形状、材
質、接着長さ等を考慮し、さらには接着強度および破壊
トルクを勘案して形成することになる。The tight fitting joint having a concave portion through which the adhesive can flow on the tip side of the fitting portion of the flange joint takes into consideration the shape and material of the FRP shaft, the length, the outer diameter, the inner diameter, etc., and the flange joint. Also on the side, it is formed in consideration of its shape, material, bonding length, etc., and further considering bonding strength and breaking torque.
【００２０】またフランジ継手の嵌合部の先端側に設け
られる凹部であって接着剤を流入させる部分は、シャフ
トの回転時のバランスや接着剤の種類、粘度、および接
着力を考慮し、少なくとも３箇所以上設け、また円周長
さの７０〜９５％の範囲内とすることが好ましい。In addition, the concave portion provided on the tip side of the fitting portion of the flange joint, into which the adhesive flows, considers at least the balance during rotation of the shaft, the type of the adhesive, the viscosity, and the adhesive force, and at least It is preferable to provide it at three or more places and to set it within the range of 70 to 95% of the circumferential length.
【００２１】本発明の実施例におけるフランジ継手の嵌
合部は図１〜図４に示すように中実であるが、中空の継
手をも目的に応じて使用するようにしてもよい。The fitting portion of the flange joint in the embodiment of the present invention is solid as shown in FIGS. 1 to 4, but a hollow joint may be used according to the purpose.
【００２２】本発明において用いられる接着剤は液状タ
イプのものが好ましい。粘度はシャフトの中に継手を挿
入する際の潤滑性、作業性、および硬化時の粘度等を考
慮し、室温で１００〜１０００ポイズの範囲のものを使
用することが好ましい。接着剤としては例えばアラルダ
イト（チバ・ガイギー社製）、ソニーボンド（ソニーケ
ミカル（株）製）、スリーロイ（スリーボンド社製）等
が挙げられる。The adhesive used in the present invention is preferably a liquid type. The viscosity is preferably in the range of 100 to 1000 poise at room temperature in consideration of lubricity when inserting the joint into the shaft, workability, viscosity at the time of curing, and the like. Examples of the adhesive include Araldite (manufactured by Ciba Geigy), Sony Bond (manufactured by Sony Chemical Co., Ltd.), and Three Roy (manufactured by Three Bond).
【００２３】本発明による接合構造によれば、継手の嵌
合部の先端部と根元部分とにそれぞれ設けられる嵌合の
きつい接合部によって、接着剤の硬化時に生ずる熱膨張
率の違いから、この嵌合いのきつい接合部の箇所でシャ
フトを継手に固定し、シャフトと継手との間の相互の同
軸度と高い真直度とが得られることになる。According to the joining structure of the present invention, due to the difference in the coefficient of thermal expansion that occurs when the adhesive is hardened by the tight fitting portions provided at the tip portion and the root portion of the fitting portion of the joint, respectively. The shaft is fixed to the joint at the joint where the fitting is tight so that mutual coaxiality and high straightness between the shaft and the joint are obtained.
【００２４】とくに継手の嵌合部の先端側の嵌合のきつ
い接合部に接着剤が流入できる凹部を周方向に沿って少
なくとも３箇所以上設けることによって、継手の嵌合部
をシャフトに挿入する際における接着剤の掻き取りが解
消されることになる。すなわち継手の嵌合部の外周側で
あってシャフトの内周面との間に接着剤が均一に導入さ
れるようになり、これによってシャフトと継手とが強固
に接着され、高い接着強度を有することが可能になる。
なお本発明におけるＦＲＰ製シャフトとは、例えば駆動
軸、車軸、巻取りシャフト等であってよい。In particular, the fitting portion of the joint is inserted into the shaft by providing at least three recesses along the circumferential direction into which the adhesive can flow in the tight joint portion on the tip side of the fitting portion of the joint. The scraping off of the adhesive at that time is eliminated. That is, the adhesive is introduced evenly between the outer peripheral side of the fitting portion of the joint and the inner peripheral surface of the shaft, whereby the shaft and the joint are firmly bonded and have high adhesive strength. It will be possible.
The FRP shaft in the present invention may be, for example, a drive shaft, an axle, a winding shaft, or the like.
【００２５】[0025]
【実施例】実施例１ 高強度炭素繊維束（７μｍ×１２０００本 東邦レーヨ
ン（株）製ベスファイト（登録商標））にビスフェノー
ル型エポキシ樹脂を３５重量％含浸させたものをフィラ
メントワインド法により、マンドレル上に９０°／＋４
５°／−４５°／０°の構成で積層する。この後に加熱
硬化させて内径が６０ｍｍであって、外径が７０ｍｍで
あり、しかも長さが１０００ｍｍのＣＦＲＰ（Ｃａｒｂ
ｏｎ ｆｉｂｅｒ ｒｅｉｎｆｏｒｃｅｄ ｐｌａｓｔ
ｉｃ 炭素繊維強化樹脂）製の中空のシャフトを得た。
このシャフトは図１および図３において参照符号１１で
示されている。 Example 1 A high-strength carbon fiber bundle (7 μm × 12000, Vesphite (registered trademark) manufactured by Toho Rayon Co., Ltd.) impregnated with 35% by weight of a bisphenol epoxy resin was prepared by a filament winding method using a mandrel. 90 ° / + 4 above
Laminate with a configuration of 5 ° / −45 ° / 0 °. After this, it is heat-cured to have an inner diameter of 60 mm, an outer diameter of 70 mm, and a length of 1000 mm.
on fiber reinforced plast
A hollow shaft made of ic carbon fiber reinforced resin) was obtained.
This shaft is designated by the reference numeral 11 in FIGS.
【００２６】このようなＣＦＲＰ製シャフト１１の両端
の内面に挿入する鋼製の継手１２を用意した。継手１２
はフランジ１６の中心部に突出するように嵌合部１７を
備えており、しかもこの嵌合部１７の先端部と根元部分
とにはそれぞれ嵌合のきつい接合部１８、１９が形成さ
れるようになっている。そして先端側の接合部１８と根
元側の接合部１９との間の部分が周溝２０から構成され
ている。また先端側の接合部１８上には、円周方向に沿
って４箇所に凹部２１を形成するようにしている。なお
この凹部２１の底面は周溝２０と連続している。Steel joints 12 to be inserted into the inner surfaces of both ends of the CFRP shaft 11 were prepared. Joint 12
Is provided with a fitting portion 17 so as to project to the center of the flange 16, and tight fitting portions 18 and 19 are formed at the tip and the root of the fitting portion 17, respectively. It has become. The portion between the tip-side joint portion 18 and the root-side joint portion 19 is constituted by the circumferential groove 20. Further, the concave portions 21 are formed at four locations on the joint portion 18 on the tip side along the circumferential direction. The bottom surface of the recess 21 is continuous with the circumferential groove 20.
【００２７】ここで継手１２の嵌合部１７の先端部に設
けられている接合部１８の凹部２１は、接着剤を流入さ
せるためのものであって、図２に示すようにその円周方
向の角度θが７０°になるように形成されており、この
ような７０°の角度を有する凹部２１を円周方向に沿っ
て所定の間隔で４箇所に設けるようにしている。しかも
嵌合部１７の軸線方向の長さを１００ｍｍとし、その先
端部および根元部分にそれぞれ形成されている接合部１
８、１９の軸線方向の長さをそれぞれ１０ｍｍとしてい
る。Here, the concave portion 21 of the joint portion 18 provided at the tip of the fitting portion 17 of the joint 12 is for allowing the adhesive to flow in, and as shown in FIG. Is formed so as to have an angle θ of 70 °, and the concave portions 21 having such an angle of 70 ° are provided at four positions at predetermined intervals along the circumferential direction. Moreover, the length of the fitting portion 17 in the axial direction is 100 mm, and the joint portion 1 is formed at the tip and the root of the fitting portion 17.
The axial lengths of 8 and 19 are each 10 mm.
【００２８】このようにして外径が６０ｍｍであって接
着剤の厚みが０．１ｍｍになるように凹部２１を有する
フランジ継手１２を製作した。この場合において嵌合部
１７の円周上において嵌合いのきつい接合部１８の占め
る部分は２２％であり、凹部２１が占める部分は７８％
である。In this way, the flange joint 12 having the recess 21 so that the outer diameter was 60 mm and the thickness of the adhesive was 0.1 mm was manufactured. In this case, on the circumference of the fitting portion 17, the portion where the tight fitting joint portion 18 occupies is 22% and the portion where the concave portion 21 occupies 78%.
Is.
【００２９】次に上記ＣＦＲＰ製シャフト１１の内面お
よびフランジ継手１２の嵌合部１７の外周面にそれぞれ
アラルダイトＡＷ１３６Ｎ、ハードナーＨＹ９４４（チ
バ・ガイギー社製）を１０：４の割合で配合した接着剤
を直接塗布した後に、ＣＦＲＰ製シャフトの内面にフラ
ンジ継手１２の嵌合部１７を挿入し、８０℃で３０分間
硬化を行なった。Next, an adhesive containing Araldite AW136N and Hardener HY944 (manufactured by Ciba-Geigy) in a ratio of 10: 4 was applied to the inner surface of the CFRP shaft 11 and the outer peripheral surface of the fitting portion 17 of the flange joint 12, respectively. After the direct coating, the fitting portion 17 of the flange joint 12 was inserted into the inner surface of the CFRP shaft, and cured at 80 ° C. for 30 minutes.
【００３０】このようにＣＦＲＰ製シャフトの両端に鋼
製フランジ継手１２を接合したＣＦＲＰ製シャフトをね
じり試験に供した結果、両者の接合部は６８０ｋｇｆ・
ｍのトルクで破壊した。As a result of subjecting the CFRP shaft in which the steel flange joints 12 are joined to both ends of the CFRP shaft to the torsion test, the joint portion between them is 680 kgf.
Destroyed with a torque of m.
【００３１】実施例２ 実施例１に記載した方法と同様な方法で製作したＣＦＲ
Ｐ製シャフト１１と、鋼製フランジ継手１２との接合を
行なった。用いたフランジ継手１２は実施例１に記載の
フランジ継手１２とは嵌合部１７の先端側に設けられた
嵌合いのきつい接合部１８の数と凹部２１の大きさが異
なっている。 Example 2 A CFR manufactured by a method similar to that described in Example 1.
The shaft 11 made of P and the flange joint 12 made of steel were joined. The used flange joint 12 is different from the flange joint 12 described in the first embodiment in the number of tight fitting joints 18 provided on the tip side of the fitting portion 17 and the size of the recess 21.
【００３２】ここでは接着剤が流入する凹部２１を円周
方向に沿って図４に示すように等間隔で３箇所設けてい
る。そしてこの凹部２１の円周方向の角度θを９０°に
した。なおＣＦＲＰ製シャフト１１と継手１２との嵌合
い寸法および接着剤の種類、硬化条件等は実施例１と同
様に行ない、両端に鋼製フランジ継手１２を接合したＣ
ＦＲＰ製シャフト１１を得た。なおこの場合の円周方向
に占める嵌合部１７の先端側の嵌合いのきつい接合部１
８の割合は２５％であって、凹部２１の占める割合は７
５％になっている。Here, three concave portions 21 into which the adhesive flows are provided at equal intervals along the circumferential direction as shown in FIG. The angle θ of the recess 21 in the circumferential direction was set to 90 °. The fitting dimensions of the CFRP shaft 11 and the joint 12, the type of adhesive, the curing conditions, etc. were the same as in Example 1, and the steel flange joints 12 were joined to both ends of the joint C.
The shaft 11 made of FRP was obtained. In this case, the fitting joint 1 is tightly fitted on the tip side of the fitting portion 17 occupying in the circumferential direction.
The ratio of 8 is 25%, and the ratio of the concave portion 21 is 7
It is 5%.
【００３３】このようなＣＦＲＰ製シャフト１１を上記
実施例１と同様のねじり試験に供した結果、６６５ｋｇ
ｆ・ｍのトルクで両者の接合部が破壊した。The CFRP shaft 11 thus obtained was subjected to the same torsion test as in Example 1 above, and as a result, 665 kg.
Both joints were broken by the torque of f · m.
【００３４】比較例１ 図５および図６に示す従来の接合構造により、実施例１
と同様にして得られたＣＦＲＰ製シャフト１を用い、嵌
合いのきつい部分および樹脂が流入する凹部を設けてい
ない平滑な嵌合部４を有する継手２をシャフト１内に挿
入して接合した。COMPARATIVE EXAMPLE 1 Example 1 was prepared using the conventional joining structure shown in FIGS. 5 and 6.
Using a CFRP shaft 1 obtained in the same manner as above, a joint 2 having a smooth fitting portion and a smooth fitting portion 4 not provided with a recess into which resin flows is inserted into the shaft 1 and joined.
【００３５】なおＣＦＲＰ製シャフト１とフランジ継手
２との嵌合い寸法および接着剤の種類、硬化条件等は上
記実施例１と同様にして実施した。得られたＣＦＲＰ製
シャフト１をねじり試験に供したが、シャフト１と継手
２との同軸度が不十分で、かつ真直度が十分に得られて
いないために、強度試験に供することができなかった。The fitting dimensions of the CFRP shaft 1 and the flange joint 2, the kind of the adhesive, the curing conditions, etc. were the same as those in the first embodiment. The obtained CFRP shaft 1 was subjected to a torsion test, but it could not be subjected to a strength test because the coaxiality between the shaft 1 and the joint 2 was insufficient and the straightness was not sufficiently obtained. It was
【００３６】比較例２ 図７および図８に示す接合構造において、実施例１と同
様の方法でＣＦＲＰ製シャフト１を製作し、嵌合部４に
接着剤が流入する凹部を設けていない構造の継手２をシ
ャフト１の端部に接合した。なおＣＦＲＰ製シャフト１
とフランジ継手２との嵌合い寸法および接着剤の種類、
硬化条件等は実施例１と同様にした。 Comparative Example 2 In the joining structure shown in FIGS. 7 and 8, a CFRP shaft 1 was manufactured in the same manner as in Example 1, and the fitting portion 4 was not provided with a concave portion through which the adhesive flows. The joint 2 was joined to the end of the shaft 1. CFRP shaft 1
Dimensions of the flange and the flange joint 2 and the type of adhesive,
The curing conditions were the same as in Example 1.
【００３７】このような方法によると、嵌合部４の先端
部に接着剤が流入する凹部が設けられていないために、
接着剤の一部が掻き取られた。得られたＣＦＲＰ製シャ
フト１を実施例１と同様にねじり試験した結果、５６０
ｋｇｆ・ｍのトルクで接合部分が破壊した。According to such a method, since the concave portion into which the adhesive flows is not provided at the tip of the fitting portion 4,
A portion of the adhesive was scraped off. The obtained CFRP shaft 1 was subjected to a torsion test in the same manner as in Example 1, and as a result, 560
The joint part broke at a torque of kgf · m.
【００３８】[0038]
【発明の効果】以上のように本発明は、継手のシャフト
の端部と嵌合される嵌合部の先端部と根元部分とに嵌合
のきつい接合部をそれぞれ設けるようにし、しかも嵌合
部の先端側の嵌合のきつい接合部には接着剤が流入でき
る凹部を円周方向に沿って少なくとも３箇所以上形成す
るようにしたものである。As described above, according to the present invention, a tight fitting portion is provided at each of the tip end portion and the root portion of the fitting portion fitted to the end portion of the shaft of the joint, and the fitting portion is fitted. At the tightly fitted joint portion on the tip end side of the portion, at least three or more recesses into which the adhesive can flow are formed along the circumferential direction.
【００３９】従って嵌合部の先端部と根元部分とにそれ
ぞれ形成されている嵌合のきつい接合部によって、ＦＲ
Ｐ製シャフトと継手との相対的な同軸度と真直度とを高
い精度で実現することが可能になる。しかも嵌合部の先
端側の接合部の外周面に形成されている接着剤が流入で
きる凹部によって、継手をＦＲＰ製シャフトに嵌合させ
る際に、このシャフトの内面と継手の嵌合部の外周面上
に塗布された接着剤の掻き取りを防止し、これによって
ＦＲＰ製シャフトの内面に継手を均一にかつ強固に接着
して固着できるようになる。従って本発明によれば、寸
法精度に優れ、しかも高い接着強度を保持した接合が可
能になり、高速回転での使用、もしくは高トルクの伝達
を行なう箇所での接着接合において非常に有利なＦＲＰ
製シャフトと継手との接続構造が得られることになる。Therefore, by the tight fitting joints formed at the tip and the root of the fitting portion respectively, FR
The relative coaxiality and straightness between the P shaft and the joint can be realized with high accuracy. In addition, when the fitting is fitted to the FRP shaft by the recess formed in the outer peripheral surface of the joining portion on the tip side of the fitting portion, the inner surface of the shaft and the outer periphery of the fitting portion of the fitting are fitted. The adhesive applied to the surface is prevented from being scraped off, which allows the joint to be evenly and firmly adhered and fixed to the inner surface of the FRP shaft. Therefore, according to the present invention, it is possible to perform bonding with excellent dimensional accuracy and high adhesive strength, which is very advantageous for use in high-speed rotation or adhesive bonding at a place where high torque is transmitted.
A connection structure between the manufactured shaft and the joint can be obtained.
【図１】第１の実施例の接合構造を示す分解斜視図であ
る。FIG. 1 is an exploded perspective view showing a joining structure according to a first embodiment.
【図２】継手の正面図である。FIG. 2 is a front view of a joint.
【図３】接続構造を示す縦断面図である。FIG. 3 is a vertical cross-sectional view showing a connection structure.
【図４】第２の実施例の継手の正面図である。FIG. 4 is a front view of the joint of the second embodiment.
【図５】従来の接続構造を示す斜視図である。FIG. 5 is a perspective view showing a conventional connection structure.
【図６】従来の接続構造を示す縦断面図である。FIG. 6 is a vertical cross-sectional view showing a conventional connection structure.
【図７】別の従来の接続構造を示す斜視図である。FIG. 7 is a perspective view showing another conventional connection structure.
【図８】別の従来の接続構造を示す縦断面図である。FIG. 8 is a vertical cross-sectional view showing another conventional connection structure.
１ ＦＲＰ製シャフト ２ 継手 ３ フランジ ４ 嵌合部 ５ 接着剤 ６ 周溝 １１ ＦＲＰ製シャフト １２ 継手 １３ 貫通穴 １６ フランジ １７ 嵌合部 １８、１９ 接合部 ２０ 周溝 ２１ 凹部 ２５ 接着剤 1 FRP Shaft 2 Joint 3 Flange 4 Fitting Part 5 Adhesive 6 Circumferential Groove 11 FRP Shaft 12 Joint 13 Through Hole 16 Flange 17 Fitting Part 18, 19 Joint 20 Circumferential Groove 21 Recess 25 Adhesive
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｂ２９Ｌ 31:06 4Ｆ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location B29L 31:06 4F
Claims (2)
嵌合させて取付け、接着剤で固着するようにしたＦＲＰ
製シャフトと継手との接合構造において、 前記継手の前記シャフトの端部と嵌合される嵌合部の先
端部と根元部分とに嵌合いのきつい接合部をそれぞれ設
け、 しかも前記嵌合部の先端側の嵌合のきつい接合部には接
着剤が流入できる凹部を周方向に沿って少なくとも３箇
所以上形成するようにしたことを特徴とするＦＲＰ製シ
ャフトと継手との接合構造。1. A FRP in which a joint is fitted and attached to an end portion of a hollow FRP shaft and fixed by an adhesive.
In a joint structure between a manufactured shaft and a joint, tight fitting joints are respectively provided at a tip end portion and a root portion of a fitting portion fitted with an end portion of the shaft of the joint, and the fitting portion A joint structure between an FRP shaft and a joint, characterized in that recesses into which an adhesive agent can flow are formed at least at three or more locations along the circumferential direction at a tight joint portion on the distal end side.
れかから作られていることを特徴とする請求項１に記載
のＦＲＰ製シャフトと継手との接合構造。2. The joint structure between a shaft made of FRP and a joint according to claim 1, wherein the joint is made of any one of metal, synthetic resin and FRP.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5127885A JP2944060B2 (en) | 1993-04-28 | 1993-04-28 | Joint structure between FRP shaft and joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5127885A JP2944060B2 (en) | 1993-04-28 | 1993-04-28 | Joint structure between FRP shaft and joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06313437A true JPH06313437A (en) | 1994-11-08 |
| JP2944060B2 JP2944060B2 (en) | 1999-08-30 |
Family
ID=14971064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5127885A Expired - Fee Related JP2944060B2 (en) | 1993-04-28 | 1993-04-28 | Joint structure between FRP shaft and joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2944060B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010276094A (en) * | 2009-05-28 | 2010-12-09 | Aron Kasei Co Ltd | Pipe repairing connecting member |
-
1993
- 1993-04-28 JP JP5127885A patent/JP2944060B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010276094A (en) * | 2009-05-28 | 2010-12-09 | Aron Kasei Co Ltd | Pipe repairing connecting member |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2944060B2 (en) | 1999-08-30 |
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