WO2019158858A1 - Procédé de fabrication d'un composant de bicyclette, composant de bicyclette et pédalier de bicyclette - Google Patents
Procédé de fabrication d'un composant de bicyclette, composant de bicyclette et pédalier de bicyclette Download PDFInfo
- Publication number
- WO2019158858A1 WO2019158858A1 PCT/FR2019/050319 FR2019050319W WO2019158858A1 WO 2019158858 A1 WO2019158858 A1 WO 2019158858A1 FR 2019050319 W FR2019050319 W FR 2019050319W WO 2019158858 A1 WO2019158858 A1 WO 2019158858A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plate
- component
- cavity
- bicycle
- shoulder
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/14—Making other products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/12—Forming profiles on internal or external surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K17/00—Making sport articles, e.g. skates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K21/00—Making hollow articles not covered by a single preceding sub-group
- B21K21/08—Shaping hollow articles with different cross-section in longitudinal direction, e.g. nozzles, spark-plugs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D25/00—Special casting characterised by the nature of the product
- B22D25/02—Special casting characterised by the nature of the product by its peculiarity of shape; of works of art
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y80/00—Products made by additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M3/00—Construction of cranks operated by hand or foot
Definitions
- the present invention relates to a method of manufacturing a hollow bicycle component.
- the invention also relates to a bicycle component and a bicycle crankset.
- the object of the present invention is thus to provide an improved method for the manufacture of a bicycle component.
- the subject of the invention is a method for manufacturing a bicycle component, characterized in that it comprises the following successive steps:
- the invention makes it possible to improve the ratio between the rigidity and the weight of the component.
- the method makes it possible to propose a component having the same mechanical strength with a lower weight compared to existing solutions.
- the invention also relates to a bicycle component, comprising a part having an inner cavity opening on one side, characterized in that the component comprises a flat plate fixed on the part covering the cavity.
- the realization of the piece includes a foundry operation.
- the realization of the piece includes a forging operation.
- the realization of the part includes a foundry operation followed by a forging operation, according to the Cobapress hybrid process.
- the realization of the part comprises an extrusion-rolling operation.
- the realization of the part includes an additive manufacturing operation.
- the interior cavity is made in the room without additional machining operation.
- the inner cavity is made in the room by an additional machining operation.
- the plate is flat, has a constant thickness, and has two peripheral edges formed at right angles.
- a shoulder for receiving the plate is formed at the upper edge of the cavity.
- the shoulder forms a step at right angles, with two peripheral edges formed at right angles.
- the shoulder has a depth equal to the thickness of the plate.
- the shoulder is made during the same machining operation as the inner cavity or finishes of the inner cavity.
- the plate is made by laser cutting.
- the room has branches receiving a tray.
- the piece has four branches arranged in X.
- the branches are formed in one piece with the piece.
- the branches are molded on the piece.
- the branches are forged on the piece.
- the plate completely covers the cavity.
- the cavity is waterproof.
- this seal is obtained during the fixing of the plate on the part.
- this seal can be obtained by a seal or a plug, especially in the case where the component incorporates electronic elements.
- the fixing step is performed by welding, preferably friction stir welding.
- the fixing step is performed by gluing.
- the method comprises a final finishing step to give the component a desired external appearance.
- the finishing step includes a deburring operation of the weld made between the workpiece and the plate.
- the finishing step comprises a grinding operation of the component at the weld made between the workpiece and the plate, for example by milling or sanding.
- the finishing step comprises a machining operation of the outer contours of the part.
- the finishing step comprises a heat treatment operation.
- the finishing step comprises a surface treatment operation.
- the method comprises a step of inserting at least one electronic component into the internal cavity.
- the electronic component can be an LED, a sensor, a GPS chip, etc.
- the invention also relates to a bicycle crankset, comprising:
- a first crank constituted by a first component, as mentioned above;
- a second crank constituted by a second component, as mentioned above;
- the component according to the invention is a crank.
- other components of a bicycle such as a frame, a bracket, or a battery holder or motor of an electric bicycle, can be envisaged.
- Figure 1 is a perspective view of the crankset according to the invention, comprising a plate, an axis and two cranks;
- Figure 2 is another perspective view of the pedal, tray side
- Figure 3 is a view similar to Figure 1 without the tray;
- Figure 4 is a view similar to Figure 2 without the tray;
- FIG. 5 is an exploded view of the pedal, corresponding to Figure 4;
- Figure 6 is another exploded view of the pedal;
- FIG. 7 is a side view of the pedal, according to the arrow VII in Figure 3;
- FIG 8 is a top view of the pedal, according to the arrow VIII in Figure 7;
- Figure 9 is a front view of the pedal according to the arrow IX in Figure 8;
- Figure 10 is a sectional view along the line X-X in Figure 9;
- Figure 11 is a sectional view along the line XI-XI of the crank comprising tray receiving arms;
- Figure 12 is a sectional view along the line XII-XII of the other crank;
- Figure 13 is an enlarged view of detail XII in Figure 12, showing the plate and the shoulder before assembly;
- Figure 14 is a sectional view along line XIV-XIV of the crank comprising the branches;
- Figure 15 is a perspective view of a component part of a crank, during manufacture, after machining a cavity in a block of material;
- Figure 16 is a longitudinal section of the part of Figure 15.
- Figures 1 to 10 show a crankset 1 according to the invention, comprising two cranks 10, 20, an axis 40 connecting them and a plate 30 attached to one of the cranks 10.
- Figures 1 1 to 16 show only the cranks 10 and 20 constituting components according to the invention.
- each crank 10/20 comprises a base piece 15/25 having a flat outer face 51 and an inner cavity 52 opening at the face 51, on the side of the part 15 / 25.
- the cavity 52 is completely covered by a plate 60 to make the cavity 52 waterproof.
- the plate 60 is flat and has a constant thickness between its two flat faces 61 and 62.
- the plate 60 has a lateral surface 63 which extends over its entire periphery, perpendicular to the faces 61 and 62.
- the plate 60 has two ridges 65 and 66 which extend over its entire periphery, respectively between the surfaces 61 and 63, and between the surfaces 62 and 63.
- Each edge 65 and 66 is formed at right angles, as visible in a sectional plane perpendicular to the plane of the plate 60.
- the cavity 52 has a shoulder 54 formed at its upper edge, with a depth equal to the thickness of the plate 60.
- the shoulder 54 forms a step at right angles.
- the shoulder 54 has a flat surface 82 provided for receiving the plane inner face 62 of the plate 60 in plane support, and a lateral surface 83 which extends over its entire periphery, perpendicularly to the surface 82.
- the shoulder 54 comprises two edges 85 and 86 which extend over its entire periphery, respectively between the face 51 and the surface 83, and between the surfaces 82 and 83. Each edge 85 and 86 is formed at right angles, as visible in a sectional plane perpendicular to the plane of the shoulder 54.
- the flat outer face 61 of the plate 60 and the flat outer face 51 of the part 15/25 together form a flat surface.
- the part 125 and the plate 60 are secured by connecting means 90, for example a weld or glue.
- the connecting means 90 make it possible to secure the face 51, the surface 83 and the edge 85 of the part 15/25 on the one hand, with the face 61, the surface 63 and the edge 65 of the plate 60. somewhere else.
- the base piece 15/25 of each crank 10/20 also has two opening openings 56 and 58.
- the opening 56 is designed for fixing the axis 40.
- the opening 56 has an internal relief formed projecting, complementary to the relief formed at the ends 41 and 42 of the axis 40.
- the relief of the opening 56 has six rounded depressions, while the relief of the ends 41 and 42 has six rounded bosses.
- the opening 58 is provided to receive a spacer 78 for fixing a pedal, not shown.
- the complementary reliefs of the ends 41 and 42 of the axis 40 and the openings 56 of the parts 15/25 may have different configurations without departing from the scope of the invention.
- the reliefs may have flat facets, allowing their fitting.
- the axis 40 preferably has a tubular section, that is to say hollow, as shown in Figure 10.
- the axis 40 may have a solid section.
- the crank 10 comprises four branches 1 1, 12, 13 and 14, for receiving the plate 30.
- the branches 11-14 are formed in one piece on the base part 15.
- the branches 11-14 can be machined, molded, or forged on 15.
- the branches 1 1-14 can be machined on a CNC machine tool (numerical control computer).
- the branches 11-14 may be independent of the crank 10, that is to say be reported on the base part 15.
- the base piece 15/25 and the plate 60 are made of metal.
- the metal is an aluminum alloy.
- the piece 15/25 and / or the plate 60 may be of plastic material.
- the part 15/25 and / or the plate 60 may be of composite material, such as a carbon fiber reinforced plastic (CFRP e n English).
- the plate 60 can be made by laser cutting. This ensures a significant accuracy in the dimensions of the plate, and in the perpendicularity between the lateral surface 63 and the flat faces 61 and 62.
- the plate 60 can be fixed to the base part 15/25 by implementing a welding technique, preferably the friction stir welding technique. Other techniques are also possible, such as cold metal transfer (CMT) welding, TIG (Tungsten Inert Gas) welding, or the like.
- CMT cold metal transfer
- TIG Tungsten Inert Gas
- the part 15/25 and the plate 60 can be secured by gluing (example: epoxy-type glue).
- the part 15/25 and the plate 60 are made of the same material.
- the piece 15/25 and the plate 60 may be made of different materials.
- a method of manufacturing a bicycle component according to the invention comprises the successive steps described below.
- the method comprises a step of producing a part 5 having an internal cavity 52 opening on one side, as shown in FIG.
- the making of part 5 can include:
- the part 5 can be made from a preform, that is to say a block of raw material, obtained in foundry, forging, foundry + forging, extrusion, additive manufacturing, etc.
- the inner cavity 52 can be made in the part 5 without additional machining operation.
- the preform may have a recess obtained in the foundry, forge, foundry + forge, additive manufacturing, and having the final shape of the cavity 52.
- the cavity 52 may be partially made in the part 5 by a machining operation.
- the preform may have a recess, requiring additional machining to obtain the final shape of the cavity 52.
- the cavity 52 can be entirely made in the part 5 by a machining operation.
- the preform may be devoid of recess before this machining.
- the cavity 52 is entirely machined in the preform to form the part 5.
- the part 5 also comprises a shoulder 54 formed at the upper edge of the cavity 52.
- the shoulder 54 is machined in the part 5, so as to form a step at right angles, with a flat surface for receiving the plate 60.
- the method may comprise a step of inserting one or more electronic components in the cavity 52.
- the electronic component may be an LED, a sensor, a GPS chip, etc.
- a plate 60 is positioned on the part 5 to cover the cavity 52.
- the plate 60 is fixed to the part 5, for example by welding or gluing.
- the plate 60 is attached to the workpiece 5 by friction stir welding, and the weld is machined in a finishing step.
- a flat outer face 61 of the plate 60 and a flat outer face 51 of the part 5 together form a flat surface.
- the friction stir welding technique makes it possible to weld without adding material, and thus to gain weight, which is an important parameter in the field of the cycle. This weld also makes it possible to have good mechanical properties. Finally, from an aesthetic point of view, this weld is seen almost no longer after grinding, for example by milling or sanding.
- the shoulder 54 forms a step at right angles to the entire upper edge of the cavity 52, with two peripheral edges 85 and 86 formed at right angles, the plate 60 has two peripheral edges 65 and 66 formed at right angles, and the shoulder 54 has a depth equal to the thickness of the plate 60.
- the right-angle contact between the plate 60 and the shoulder 54 makes it possible to ensure a very precise fit, which is particularly advantageous for producing the friction stir welding.
- the counter-support at right angles makes it possible to counter the force applied perpendicularly to the plate 60 during the friction stir welding, and thus to avoid deforming the plate 60.
- the method may include a finishing step to give the component a desired external appearance, especially to lighten the component, and give it the desired shape from the aesthetic point of view.
- the finishing step may comprise a deburring operation of the weld made between the part 5 and the plate 60.
- the finishing step may comprise a machining operation of the outer contours of the part 5.
- the finishing step may comprise a heat treatment step and / or surface treatment.
- the part 5 forms the part 15 or 25 respectively of the crank 10 or 20.
- the part 5 it is possible not to perform finishing machining of the part 5 after fixing the plate 60. In this case, it is conceivable to give the part 5 its desired external appearance, in particular to give it the aesthetically desirable shape, directly in the first step of producing the piece 5.
- the machining operations of the part 5, as well as the steps of positioning and fixing the plate 60 on the part 5, can be performed on the same machine, in particular a CNC machine tool.
- the reduction in the number of machines, and the number of movements of the part 5 between different machines, makes it possible to save time and money.
- the bicycle component may be shaped differently from Figures 1 to 16 without departing from the scope of the invention, which is defined by the claims.
- the component can be of any type adapted to the intended application.
- Various bicycle components such as a frame, a bracket, or a battery holder or motor of an electric bicycle, can be obtained by the method according to the invention.
- the plate 60 can cover only a portion of the cavity 52.
- the base part 5 is machined to obtain two cavities 52, each on one side.
- the bicycle component comprises two plates 60 arranged vis-a-vis.
- the part 5 may be devoid of shoulder 54.
- a surface of the part 5 is machined at the edge of the cavity 52, then the plate 60 is fixed on this surface. In other words, after the positioning operation of the plate 60 on the part 5, the plate 60 protrudes from the surface of the part 5.
- At least one electronic component is disposed in the cavity 52.
- the electronic component may be a GPS chip to geo-locate the component according to the invention.
- the electronic component may be a force sensor communicating with a propulsion system of an electronic bicycle.
- the bicycle component may be a crank provided with an electric battery electrically connected to a light-emitting diode (LED).
- the diode is disposed on the outside of the crank, for securing nocturnal use of the bicycle.
- the electronic component may be an RFID chip for identifying the bicycle component.
- the technical characteristics of the various embodiments and variants mentioned above may be, in whole or in part, combined with one another.
- the bicycle component can be adapted in terms of cost, features and performance.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Laser Beam Processing (AREA)
- Golf Clubs (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/965,040 US20200354016A1 (en) | 2018-02-13 | 2019-02-13 | Method for producing a bicycle component, bicycle component and bicycle chainset |
BR112020014646-3A BR112020014646A2 (pt) | 2018-02-13 | 2019-02-13 | método para produzir um componente de bicicleta, componente de bicicleta, e, pedivela de bicicleta |
CA3088830A CA3088830A1 (fr) | 2018-02-13 | 2019-02-13 | Procede de fabrication d'un composant de bicyclette, composant de bicyclette et pedalier de bicyclette |
JP2020565022A JP2021513486A (ja) | 2018-02-13 | 2019-02-13 | 自転車の構成要素を製造するための方法、自転車の構成要素および自転車のチェーンセット |
EP19711152.9A EP3727741A1 (fr) | 2018-02-13 | 2019-02-13 | Procédé de fabrication d'un composant de bicyclette, composant de bicyclette et pédalier de bicyclette |
CN201980010359.8A CN111936265A (zh) | 2018-02-13 | 2019-02-13 | 制造自行车零件、部件和链条的方法 |
KR1020207026207A KR20200118862A (ko) | 2018-02-13 | 2019-02-13 | 자전거 구성 요소 생산 방법, 자전거 구성 요소 및 자전거 체인 세트 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1851191A FR3077751B1 (fr) | 2018-02-13 | 2018-02-13 | Procede de fabrication d'un composant de bicyclette, composant de bicyclette et pedalier de bicyclette |
FR1851191 | 2018-02-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2019158858A1 true WO2019158858A1 (fr) | 2019-08-22 |
Family
ID=61764026
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2019/050319 WO2019158858A1 (fr) | 2018-02-13 | 2019-02-13 | Procédé de fabrication d'un composant de bicyclette, composant de bicyclette et pédalier de bicyclette |
Country Status (9)
Country | Link |
---|---|
US (1) | US20200354016A1 (fr) |
EP (1) | EP3727741A1 (fr) |
JP (1) | JP2021513486A (fr) |
KR (1) | KR20200118862A (fr) |
CN (1) | CN111936265A (fr) |
BR (1) | BR112020014646A2 (fr) |
CA (1) | CA3088830A1 (fr) |
FR (1) | FR3077751B1 (fr) |
WO (1) | WO2019158858A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10562588B2 (en) | 2015-09-01 | 2020-02-18 | The Hive Global, Inc | Bicycle cassette with locking connection |
CN109689489B (zh) * | 2016-03-24 | 2022-02-18 | 网络全球公司 | 一种具有心轴附接结构的自行车曲柄 |
CN111542471A (zh) | 2017-08-21 | 2020-08-14 | 劲锋铁马股份有限公司 | 具有夹紧连接的自行车塔轮 |
FR3101061A1 (fr) * | 2019-09-23 | 2021-03-26 | Nova Ride | Organe de transmission d’effort par rotation pour conduite d’un velo |
US11932351B2 (en) | 2020-07-17 | 2024-03-19 | The Hive Global, Inc. | Conical bicycle cassette sprocket structure |
US12030586B2 (en) | 2021-07-12 | 2024-07-09 | The Hive Global, Inc. | Seal for bicycle crank with differential chainring motion |
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EP0119365A1 (fr) | 1983-03-14 | 1984-09-26 | Thomas Di Serio | Procédé pour fabriquer des pièces en aluminium ou en alliage d'aluminium |
JPH05116670A (ja) * | 1991-10-29 | 1993-05-14 | Shimano Inc | 連動杆 |
EP0756990A1 (fr) * | 1995-08-04 | 1997-02-05 | Shimano Inc. | Bras de manivelle de bicyclette et procédé de fabrication |
EP0850825A2 (fr) * | 1996-12-27 | 1998-07-01 | Shimano Inc. | Bras de manivelle d'une bicyclette et procédé de fabrication |
US5893299A (en) * | 1996-12-20 | 1999-04-13 | Shimano Inc. | Bicycle crank arm |
US20020170635A1 (en) * | 1998-05-04 | 2002-11-21 | Diserio Emile-Thomas | Process for manufacturing aluminum alloys and aluminium castings |
EP1350714A1 (fr) * | 2002-03-19 | 2003-10-08 | Campagnolo Srl | Bras de manivelle d'une bicyclette et procédé de fabrication |
US20040200314A1 (en) * | 2003-04-12 | 2004-10-14 | Frank Hermansen | Bicycle crank arm |
US20070235986A1 (en) * | 2006-04-07 | 2007-10-11 | David Weagle | Impact protector mounting |
EP2230167A2 (fr) * | 2009-03-19 | 2010-09-22 | Cycling Sports Group, Inc. | Ensemble formant un vilebrequin de bicyclette |
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EP2886434A1 (fr) * | 2013-12-20 | 2015-06-24 | Sram, Llc. | Ensemble de bras de manivelle pour bicyclette |
GB2548623A (en) * | 2016-03-24 | 2017-09-27 | Hieta Tech Ltd | Truss structure |
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FR2852999B1 (fr) * | 2003-03-28 | 2007-03-23 | Snecma Moteurs | Aube allegee de turbomachine et son procede de fabrication |
JP5002922B2 (ja) * | 2005-07-29 | 2012-08-15 | 東レ株式会社 | アーム状応力伝達部材 |
US8689645B2 (en) * | 2012-04-25 | 2014-04-08 | Shimano Inc. | Bicycle crank arm |
-
2018
- 2018-02-13 FR FR1851191A patent/FR3077751B1/fr active Active
-
2019
- 2019-02-13 WO PCT/FR2019/050319 patent/WO2019158858A1/fr unknown
- 2019-02-13 BR BR112020014646-3A patent/BR112020014646A2/pt not_active Application Discontinuation
- 2019-02-13 CN CN201980010359.8A patent/CN111936265A/zh active Pending
- 2019-02-13 CA CA3088830A patent/CA3088830A1/fr active Pending
- 2019-02-13 JP JP2020565022A patent/JP2021513486A/ja active Pending
- 2019-02-13 EP EP19711152.9A patent/EP3727741A1/fr not_active Withdrawn
- 2019-02-13 KR KR1020207026207A patent/KR20200118862A/ko not_active Application Discontinuation
- 2019-02-13 US US16/965,040 patent/US20200354016A1/en not_active Abandoned
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0119365A1 (fr) | 1983-03-14 | 1984-09-26 | Thomas Di Serio | Procédé pour fabriquer des pièces en aluminium ou en alliage d'aluminium |
JPH05116670A (ja) * | 1991-10-29 | 1993-05-14 | Shimano Inc | 連動杆 |
EP0756990A1 (fr) * | 1995-08-04 | 1997-02-05 | Shimano Inc. | Bras de manivelle de bicyclette et procédé de fabrication |
US5893299A (en) * | 1996-12-20 | 1999-04-13 | Shimano Inc. | Bicycle crank arm |
EP0850825A2 (fr) * | 1996-12-27 | 1998-07-01 | Shimano Inc. | Bras de manivelle d'une bicyclette et procédé de fabrication |
US20020170635A1 (en) * | 1998-05-04 | 2002-11-21 | Diserio Emile-Thomas | Process for manufacturing aluminum alloys and aluminium castings |
EP1350714A1 (fr) * | 2002-03-19 | 2003-10-08 | Campagnolo Srl | Bras de manivelle d'une bicyclette et procédé de fabrication |
US20040200314A1 (en) * | 2003-04-12 | 2004-10-14 | Frank Hermansen | Bicycle crank arm |
US20070235986A1 (en) * | 2006-04-07 | 2007-10-11 | David Weagle | Impact protector mounting |
EP2230167A2 (fr) * | 2009-03-19 | 2010-09-22 | Cycling Sports Group, Inc. | Ensemble formant un vilebrequin de bicyclette |
JP2012171419A (ja) * | 2011-02-18 | 2012-09-10 | Sugino Engineering:Kk | 自転車用クランクアーム、およびその製造方法 |
EP2886434A1 (fr) * | 2013-12-20 | 2015-06-24 | Sram, Llc. | Ensemble de bras de manivelle pour bicyclette |
GB2548623A (en) * | 2016-03-24 | 2017-09-27 | Hieta Tech Ltd | Truss structure |
Also Published As
Publication number | Publication date |
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EP3727741A1 (fr) | 2020-10-28 |
FR3077751B1 (fr) | 2020-01-24 |
BR112020014646A2 (pt) | 2020-12-01 |
US20200354016A1 (en) | 2020-11-12 |
FR3077751A1 (fr) | 2019-08-16 |
KR20200118862A (ko) | 2020-10-16 |
CA3088830A1 (fr) | 2019-08-22 |
CN111936265A (zh) | 2020-11-13 |
JP2021513486A (ja) | 2021-05-27 |
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