WO2017054901A1 - Rahmenbauteil, insbesondere zweiradrahmen - Google Patents
Rahmenbauteil, insbesondere zweiradrahmen Download PDFInfo
- Publication number
- WO2017054901A1 WO2017054901A1 PCT/EP2016/001486 EP2016001486W WO2017054901A1 WO 2017054901 A1 WO2017054901 A1 WO 2017054901A1 EP 2016001486 W EP2016001486 W EP 2016001486W WO 2017054901 A1 WO2017054901 A1 WO 2017054901A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- shells
- frame component
- component according
- frame
- coating
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE
- B62K19/00—Cycle frames
- B62K19/18—Joints between frame members
- B62K19/28—Means for strengthening joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE
- B62K19/00—Cycle frames
- B62K19/02—Cycle frames characterised by material or cross-section of frame members
- B62K19/04—Cycle frames characterised by material or cross-section of frame members the material being wholly or mainly metallic, e.g. of high elasticity
- B62K19/08—Cycle frames characterised by material or cross-section of frame members the material being wholly or mainly metallic, e.g. of high elasticity made from sheet
Definitions
- Frame component in particular bicycle frame
- the invention relates to a frame component, in particular a bicycle frame, with two interconnected half-shells, which together form at least one inner cavity.
- the present invention relates in particular to a bicycle frame for a pedelec or an e-bike.
- Pedelecs differ from a normal bicycle by an additional electric motor, at least one battery element for motor drive and usually by a control electronics for the engine.
- the electric motor of the pedelec can be switched on to assist the pedal drive by the driver.
- the control electronics measures the applied force or speed and switches the motor on or off when certain values are reached.
- the additional elements of a Pedelecs have the consequence that the corresponding frame member must be made comparatively bulky to accommodate the supply elements therein. Some of these elements are also attached to the outside of the frame, but this affects the appearance. In practice pedelec frames are often made manually.
- bicycle frames are usually made of metal tubes.
- other materials such as e.g. Aluminum, titanium or fiber reinforced plastics used to reduce the weight of the frame.
- the corresponding components are then welded together or glued together to obtain the desired frame geometry.
- the aim is to keep the wall thicknesses of the two bicycle frame half-shells as low as possible.
- this requirement conflicts with the need to provide a bicycle frame that has a high mechanical strength suitable for use in a pedelec.
- the corresponding half-shells often do not have sufficient load-bearing capacity and can therefore be easily damaged as a result.
- the invention has for its object to provide a frame member with the features described above, which has a high mechanical strength at low weight and at the same time is inexpensive to produce.
- the two half-shells are provided on its outer side at least partially with a mechanical stability of the frame member increasing paint with a layer thickness of at least 0.5 mm.
- the invention is based on the realization that in a two-wheeled frame, for reasons of optical appearance, painting which is required anyway is carried out in such a way that at the same time a significant increase in mechanical stability is achieved at the same time.
- the layer thickness of the coating according to the invention is at least 0.5 mm, advantageously at least 0.8 mm.
- the layer thickness is preferably a maximum of 2 mm, for example a maximum of 1, 5 mm.
- the two half-shells can therefore be produced with a relatively small wall thickness, since the coating of lacquer after the two half-shells have been assembled leads to a significant increase in the mechanical strength of the frame component.
- An additional process step in the production of the frame member to increase the impact resistance of the frame is usually no longer required lent. Especially with rockfalls that occur very frequently when driving through terrain. th, the frame member according to the invention behaves very robust.
- the crash stability is increased since the coating according to the invention improves the energy absorption behavior of the frame component and its susceptibility to cracking. Also, the feel can be adjusted by the coating with a large layer thickness targeted.
- the paint can cover the entire outer surface of the two half-shells.
- the coating only partially covers the outer surface of the two half-shells, ie defines a covering area.
- the coating is applied with a constant layer thickness.
- the layer thickness is deliberately set locally differently.
- the coating can be applied with a small layer thickness, so that the coating there has only an optical function, for example, while it is significantly thicker in mechanically highly stressed areas, which are frequently exposed to rockfalls, for example , at least twice or at least three times as thick as in the lightly loaded areas is applied.
- the layer thickness of the coating in its thickest region can be at least twice as large, for example at least three times as large, for example at least five times as large as in its thinnest region.
- this thinnest region means the region with the thinnest layer thickness within the coverage area.
- This region with the thinnest layer thickness and / or the region with the thickest layer thickness may consist of a plurality of separate individual regions (eg both on the left and on the right half shell) and is altogether advantageously at least 20 cm 2 , preferably at least 50 cm 2 , eg at least 100 cm 2 or at least 300 cm 2 or at least 500 cm 2 in size.
- the need for lacquer material and also the weight of the frame component can be optimized by the locally different layer thickness of the lacquer coating adapted to the requirements.
- the coating can be sprayed onto the surface of the two half-shells or even applied by an in-mold coating (IMC), in which the paint is applied in the injection mold of the corresponding half-shell.
- IMC in-mold coating
- the IMC is particularly suitable for the above-described local variation of the layer thickness
- PUR polyurethane
- TPU thermoplastic polyurethane
- the two half-shells in the connection region have a joining geometry suitable for the production of an adhesive bond, and the two half-shells are permanently bonded together by means of the coating material penetrated into the joining geometry. Consequently, in this embodiment of the invention during the painting process, not only the appearance of the frame member upgraded and at the same time significantly increases its impact resistance, but also permanently joined together two shells.
- the paint penetrates during its application, for example, supported by capillary effects, in the joint gap between the two half-shells and thereby fulfills the above-described additional function.
- the cohesive connection of the two half shells is made only by the penetrated into the joining geometry coating material, in particular the two half-shells are permanently connected to each other only by the penetrated paint.
- the joining geometry has a joining gap for the penetrated painting material.
- This joint gap can be completely filled by the painting material that has penetrated into the joining geometry.
- the joint gap has a gap height of at least 0.1 mm, preferably at least 0.2 mm.
- the gap height can be a maximum of 1, 0 mm, in particular a maximum of 0.5 mm.
- the joint gap has a width of 1 to 5 mm.
- the joining geometry is arranged in the outer edge region of the two half-shells.
- the two half-shells can generally have a fitting geometry which ensures an accurate assembly of the two half-shells prior to painting and expediently also prefixes the two half-shells to one another.
- the two half-shells can also have, in addition to the joining geometry suitable for the production of the adhesive bond, a further second joining geometry suitable for the production of a welded joint in the connection area.
- the two half shells are characterized by at least one welded joint as well as by the Penetrated paint material cohesively bonded together.
- the second joining geometry is designed as a press fit suitable for laser welding. This press fit may have a width of 2 to 8 mm.
- the two joining geometries are arranged directly adjacent to one another, preferably in a stepwise manner next to one another.
- the first and / or the second joining geometry are arranged circumferentially at least in regions on the half-shells.
- the one half shell forms the inner geometry of both
- the two half-shells made of plastic, in particular polyamide.
- fiber-reinforced plastics are to be preferred, so that in particular fiber-reinforced polyamide is suitable as half-shell material.
- Polyamide has, in particular after a corresponding pretreatment, a good affinity for the preferred coating material PUR.
- the half shells expediently have a wall thickness of a maximum of 5 mm, preferably a maximum of 3 mm. The minimum wall thickness of the two half-shells is for example 1 mm.
- the frame component is preferably designed as a bicycle frame.
- the half shells are expediently receptacles for a handlebar and / or a bottom bracket and / or a driver's seat and / or the axis of the rear wheel.
- the invention is accordingly also a pedelec with such a bicycle frame.
- FIG. 1 shows a two half shells exhibiting, designed as a bicycle frame frame member before joining the two half-shells
- FIG. 2 shows the two half-shells shown in FIG. 1 after their joining to the frame component
- Fig. 3 shows the frame member shown in Fig. 2 after application of a coating according to the invention
- Fig. 4 shows the section A - A in Fig. 3 and
- FIG. 5 shows the section A - A in FIG. 3 according to a further embodiment of the invention
- Fig. 1 shows two half-shells 1, 2 before their assembly into a frame member.
- these two half-shells are joined together to form the frame component, which forms a bicycle frame for a pedelec.
- the bicycle frame has a receptacle 20 for a handlebar, a receptacle 30 for a bottom bracket, a receptacle 40 for a driver's seat and a receptacle 50 for the axle of the rear wheel (not shown).
- the two half-shells 1, 2 form, in the assembled state, an inner cavity 10 (see FIG. 4) and are designed as plastic injection-molded parts.
- Fig. 1 shows two half-shells 1, 2 before their assembly into a frame member.
- these two half-shells are joined together to form the frame component, which forms a bicycle frame for a pedelec.
- the bicycle frame has a receptacle 20 for a handlebar, a receptacle 30 for a bottom bracket, a receptacle 40
- the two half-shells 1, 2 joined together have been provided on their outer side with a painting 3 increasing the mechanical stability of the bicycle frame.
- the layer thickness s of this coating 3 is about 1 mm in the exemplary embodiment (see Fig. 4), wherein the coating 3 with a uniform layer thickness s covers the entire outer surface of the two half-shells 1, 2.
- the coating 3 with a uniform layer thickness s covers the entire outer surface of the two half-shells 1, 2.
- Layer thickness s is set low, so that it has only a coloring optical function, while they are exposed in mechanically highly stressed areas, which are frequently stone chips (eg in the area of the receptacle 30 for the bottom bracket and / or in the area of the receptacle 50 for the Rear axle), is significantly larger.
- the paint 3 consists of a thermoplastic polyurethane (TPU).
- the two half-shells 1, 2 consist in the embodiment of fiber-reinforced polyamide, adheres to the TPU very well.
- FIG. 4 shows that the two half-shells 1, 2 in the connection region 4 have a joining geometry 5 suitable for the production of an adhesive bond and the two half-shells 1, 2 are glued together by the painting material 3a penetrated into the joining geometry 5.
- the joining geometry 5 has a joint gap 6 for the penetrated painting material 3a. This joining gap 6 is completely filled by the painting material 3a which has penetrated into the joining geometry 5.
- the joint gap 6 is essentially parallel to the adjacent outer surface of the two half-shells 1, 2. directed.
- the gap height h of the joint gap 6 in the exemplary embodiment is about 0.2 mm and the width b of the joint gap 6 is about 4 mm.
- the connection region 4 further shows that the two half-shells 1, 2 in the connection region 4 have, in addition to the joining geometry 5 suitable for the production of the adhesive connection, a further second joining geometry 7 suitable for the production of a welded connection. Accordingly, in this way the two half-shells 1, 2 can be additionally connected to one another by at least one welded connection in addition to the bonding caused by the penetrated painting material 3a.
- the second joining geometry 7 is designed as a press fit suitable for a laser weld. This press fit has a width b 2 of about 5 mm.
- the two joining geometries 5, 7 are arranged stepwise directly next to each other.
- the first joining geometry 5 is arranged completely circumferentially along the two half-shells 1, 2. In the exemplary embodiment according to FIG.
- the half-shell 1 forms the outer geometry of both joining geometries 5, 7 and the half-shell 2 the inner geometry of both joining geometries 5, 7. It can be seen that both joining geometries 5, 7 are arranged in the outer edge region of the two half-shells 1, 2.
- FIG. 4 also shows that the two half shells 1, 2 are reinforced with inside ribs 8.
- the wall thickness d of the two half-shells 1, 2 is in the exemplary embodiment about 2 mm.
- the two half-shells 1, 2 are permanently adhesively bonded to one another only by the penetrated painting material 3a. This variant is shown in FIG. 5.
- Fig. 6 shows the effect of a coating according to the invention using a stone impact test according to DIN EN ISO 20657 (500 g steel shot, twice for 10 sec at 2 bar air pressure).
- a stone impact test according to DIN EN ISO 20657 (500 g steel shot, twice for 10 sec at 2 bar air pressure).
- the plate on the right shows the same polyamide plate without TPU coating according to the invention. Due to the rockfall have on the surface of the plate a variety of
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112016004517.4T DE112016004517A5 (de) | 2015-09-30 | 2016-09-02 | Rahmenbauteil, insbesondere Zweiradrahmen |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202015105142.5U DE202015105142U1 (de) | 2015-09-30 | 2015-09-30 | Rahmenbauteil, insbesondere Zweiradrahmen |
| DE202015105142.5 | 2015-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2017054901A1 true WO2017054901A1 (de) | 2017-04-06 |
Family
ID=56876992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2016/001486 Ceased WO2017054901A1 (de) | 2015-09-30 | 2016-09-02 | Rahmenbauteil, insbesondere zweiradrahmen |
Country Status (2)
| Country | Link |
|---|---|
| DE (2) | DE202015105142U1 (de) |
| WO (1) | WO2017054901A1 (de) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5769442A (en) * | 1994-01-31 | 1998-06-23 | Teksource, Hlc | Structural shell frames and method of making same |
| EP0861769A1 (de) * | 1997-02-28 | 1998-09-02 | SSG (Europe) S.A. | Rahmenteil für ein Fahrrad und Verfahren zu seiner Herstellung |
| US5913529A (en) | 1996-05-22 | 1999-06-22 | Cannondale Corporation | Frame having a central backbone and opposing skins |
| DE102011053100A1 (de) | 2011-08-30 | 2013-02-28 | Rehau Ag + Co | Zweiradrahmen, Zweirad und Verfahren zur Herstellung eines Zweiradrahmens |
| DE202013104187U1 (de) | 2013-09-13 | 2014-12-16 | Rehau Ag + Co | Bauteil, insbesondere aus Kunststoff |
| CN102390152B (zh) * | 2011-07-21 | 2015-04-29 | 无锡翔隆高分子面料有限公司 | 高强度tpu复合面料的制造方法 |
| DE102014113872A1 (de) | 2014-09-25 | 2016-03-31 | Rehau Ag + Co | Verfahren zur Herstellung eines Rahmens |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6123353A (en) * | 1997-02-19 | 2000-09-26 | Techmatics, Inc. | Method of joining and reinforcing molded plastic bicycle frames |
| DE10061466A1 (de) * | 1999-12-09 | 2001-07-12 | Lth System Gmbh | Verfahren und Vorrichtung zur Pulverlackierung von nichtleitenden Materialien, wie z. B. "sheet molding compound" (SMC)-Kunststoffen |
| DE102007036869A1 (de) * | 2007-06-19 | 2009-01-02 | Tino Kempf | Fahrrad aus Kunststoff und Verfahren |
| DE202012102840U1 (de) * | 2012-07-27 | 2012-09-04 | Dr. Schneider Kunststoffwerke Gmbh | Beschichtete Lamelle |
| KR101542959B1 (ko) * | 2013-08-16 | 2015-08-07 | 현대자동차 주식회사 | 자전거용 프레임 유닛 및 그 제작방법 |
-
2015
- 2015-09-30 DE DE202015105142.5U patent/DE202015105142U1/de not_active Expired - Lifetime
-
2016
- 2016-09-02 DE DE112016004517.4T patent/DE112016004517A5/de not_active Withdrawn
- 2016-09-02 WO PCT/EP2016/001486 patent/WO2017054901A1/de not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5769442A (en) * | 1994-01-31 | 1998-06-23 | Teksource, Hlc | Structural shell frames and method of making same |
| US5913529A (en) | 1996-05-22 | 1999-06-22 | Cannondale Corporation | Frame having a central backbone and opposing skins |
| EP0861769A1 (de) * | 1997-02-28 | 1998-09-02 | SSG (Europe) S.A. | Rahmenteil für ein Fahrrad und Verfahren zu seiner Herstellung |
| CN102390152B (zh) * | 2011-07-21 | 2015-04-29 | 无锡翔隆高分子面料有限公司 | 高强度tpu复合面料的制造方法 |
| DE102011053100A1 (de) | 2011-08-30 | 2013-02-28 | Rehau Ag + Co | Zweiradrahmen, Zweirad und Verfahren zur Herstellung eines Zweiradrahmens |
| DE202013104187U1 (de) | 2013-09-13 | 2014-12-16 | Rehau Ag + Co | Bauteil, insbesondere aus Kunststoff |
| DE102014113872A1 (de) | 2014-09-25 | 2016-03-31 | Rehau Ag + Co | Verfahren zur Herstellung eines Rahmens |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112016004517A5 (de) | 2018-06-14 |
| DE202015105142U1 (de) | 2017-01-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3224119B1 (de) | Verfahren zum verstärken eines bauelements eines kraftfahrzeug-fahrwerks | |
| DE102007030929B9 (de) | Achsträger für Kraftfahrzeuge | |
| DE102007053353B4 (de) | Karosseriesäule für Fahrzeuge und Fahrzeugkarosserie | |
| DE102016202755A1 (de) | Fahrwerk und Verfahren zur Herstellung des Fahrwerks | |
| EP0146716A2 (de) | Wagenkasten | |
| DE102009037905A1 (de) | Kraftfahrzeug-Achskomponente und Verfahren zur Herstellung einer Kraftfahrzeug-Achskomponente | |
| EP1256512B1 (de) | Verstärkungselement für einen Hohlkörper, insbesondere für einen Fahrzeugkarosserieholm | |
| DE102009007122A1 (de) | Fahrzeugkarosserie | |
| DE102009053979A1 (de) | Karosserie für einen Kraftwagen | |
| EP2782811A1 (de) | Leichtbauelement für eine karosserie | |
| DE102011111232A1 (de) | Leichtbauteil, insbesondere Karosseriesäulenverstärkung und Verfahren zur Herstellung des Leichtbauteils | |
| WO2015078567A1 (de) | Verfahren zur herstellung eines aussenverkleidungsteils für ein bewegbares karosserieteil sowie ein entsprechendes aussenverkleidungsteil mit verstärkung durch hinterspritzen von fasern verstärketen kunststoff | |
| DE102010037459A1 (de) | Träger zur Verwendung in einem Kraftfahrzeug | |
| DE19931741A1 (de) | Kraftfahrzeugaufbau | |
| DE102015208779A1 (de) | Karosserie-Seitenstruktur für ein zweispuriges Fahrzeug | |
| DE10252475A1 (de) | Kraftfahrzeugkarosserie in zweischaliger Bauweise | |
| DE102013222016A1 (de) | Verfahren zum Herstellen eines verstärkten Faserverbundbauteils in Schalenbauweise | |
| DE102008009088A1 (de) | Karosserie eines Kraftfahrzeugs mit einem Seitenschweller | |
| DE19713760A1 (de) | Fahrzeugkarosserie und Verfahren zur Herstellung einer Fahrzeugkarosserie | |
| DE10059795A1 (de) | Aufpralldämpfende Motorhaube an einem Fahrzeug | |
| DE102015100968A1 (de) | Verfahren zur Herstellung einer Kraftfahrzeugkarosserie in Mischbauweise | |
| WO2017054901A1 (de) | Rahmenbauteil, insbesondere zweiradrahmen | |
| DE4335029C2 (de) | A-Säulenverbindungsteil und Verfahren zu seiner Herstellung | |
| EP1454818B1 (de) | Metallblech-Formteil und Verfahren zur Herstellung eines Metallblech-Formteils | |
| DE102010012722A1 (de) | Versteifungsstrebe für ein Kraftfahrzeug |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16760654 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 112016004517 Country of ref document: DE |
|
| REG | Reference to national code |
Ref country code: DE Ref legal event code: R225 Ref document number: 112016004517 Country of ref document: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 16760654 Country of ref document: EP Kind code of ref document: A1 |