• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a bicycle frame for electric bicycles, with a motor support element 7 fixed between down tube 6 and seat tube 1, and with holding devices on the down tube 6 for a power supply unit for the electric motor, wherein the holding means for the power supply unit comprise a connection socket 14 and a locking device 11. In order to provide a lightweight bicycle frame, in which a better integration of the power supply unit is provided in the bicycle frame, and also can be used by the motor manufacturer provided holding means for the power supply unit, according to the invention, the down tube 6 has a flat tube section 16 whose width is greater than the height distance between its upper side 18 and lower side 17, wherein on the upper side 18, the receiving means 14, 11 for the power supply unit and a diaphragm 13 are attached, which surrounds the connection socket 14 at least partially to the side and upwards. The screwing of the connection socket 14 takes place from the underside 17 through at least one recess 33 in the underside of the flat tube profile section and is detachable. The invention also relates to an electric bicycle with such a bicycle frame.
    公开号:AT15420U1
    申请号:TGM50064/2017U
    申请日:2017-04-20
    公开日:2017-08-15
    发明作者:
    申请人:Ktm Fahrrad Gmbh；
    IPC主号:
    专利说明:

    description
    BICYCLE FRAME AND ELECTRIC BIKE HERE
    The invention relates to a bicycle frame for electric bicycles, with a plurality of frame struts, which form at least one down tube, a seat tube and a steering head tube of the bicycle frame, with an attached between the down tube and seat tube motor support member to which an electric motor can be fastened, as well as holding devices on the down tube for a power supply unit for the electric motor, wherein the holding means for the power supply unit comprise a screwed to the down tube socket for the power supply unit and spaced thereof comprise a locking device. The invention also relates to an electric bicycle with bicycle frame with mounted electric motor and power supply unit for this.
    Electric bikes, sometimes called pedelecs or when approved for higher speeds and S-pedelecs, have an electric motor as a power amplifier that supports the driver generated by the pedal cranking power. The electric motors can be arranged as a hub motor in the front or rear wheel or as a center motor in the area of the bottom bracket. For the electric motors is to provide a power supply unit for power, which must be carried while driving, which should be disassembled and easily accessible, and should not affect the handling of the bike as possible. The power supply unit must be securely attached to the bicycle frame so that it does not dissolve regardless of the loads resulting from different road conditions and driving behavior.
    There are different concepts for the positioning of the power supply unit and its locking. In some concepts, the power supply unit is completely integrated into the bicycle frame, for example in the down tube due to a provided there to receive the power supply unit side opening (EP 2230164), or an opening in the top of the down tube (DE 20 2014 007 473 U1; 20 2014 009 732 U1), for which the down tube each requires a U-shaped profile section, and also a specially tailored to the opening housing shape of the power supply unit is required.
    In most cases, however, the manufacturer of the electric motor and the power supply unit, the geometry of the housing of the power supply unit and the geometry and design of the holding means for the power supply unit, such as a socket and a lock before, and the bicycle frame manufacturer can set the mounting location itself. Most bicycle frame manufacturers then choose the front (or rear) of the seat tube or the top of the down tube, and in the assembled state, the power unit jumps up the down tube or the seat tube projects forward (or back) and sideways.
    The engines of some manufacturers can only be attached to the bicycle frame when the bicycle frame between down tube and seat tube is provided with a specially designed for receiving this engine engine support element. DE 20 2011 106 258 U1 shows an example of such a motor support element.
    The object of the invention is to provide a bicycle frame with low weight and an electric bicycle hereby, in which such a motor support element is present, a better integration of the power supply unit is provided in the bicycle frame, and also provided by the engine manufacturer holding devices for the power supply unit can be used.
    To solve is proposed with the invention for a bicycle frame, that the down tube has a flat tube profile section whose width is greater than the vertical distance between the top and bottom of the profile section, attached to the top of the flat tube section, the receiving devices for the power supply unit and a panel are, which encloses the connection socket at least partially to the side and upwards, and the screwing of the connection socket from the underside by at least one recess in the bottom of the flat tube profile can be attached and detached.
    By a flat tube profile section of the bicycle frame receives a high rigidity with low weight. Due to the lower height of the flat tube profile, the power supply unit is much better and aesthetically more sophisticated in the installed state integrated into the bicycle frame. The panel in turn allows a lamination of the engine support element, and the screw from the bottom allows a lot of design freedom in the design of the panel.
    It is particularly advantageous if the aperture attached to the transition from down tube to engine support element on both the flat pipe section and the engine support element, in particular welded. Further preferably, the diaphragm may have two side walls connected via a roof wall, of which at least one is provided with a recess. Through the recess, the electrical components or a charging socket on the connection socket, the housing of which is usually provided laterally with an openable flap, continue to be accessible.
    In the inventive solution, in particular those sockets of a motor manufacturer can be used unchanged, which have a support bracket and two support brackets enclosing and connectable housing half shells and an electrical connector, wherein the support bracket has a bottom web, which can be fastened by means of the screw on the down tube or is attached. However, since due to the aperture, the otherwise provided with this connector socket screw from the top would not be attached, comes in the particular preferred embodiment for the screw locking clip with a holding plate and two projecting from the plate grub screws for use; the grub screws can then be inserted through holes in the bottom web of the support bracket and holes in the top of the down tube and for fixing the socket on the down tube nuts can be screwed through the recess in the bottom of the flat tube profile on the screws.
    It is particularly advantageous if the down tube between the steering head tube and flat tube profile section has a connection profile section which has a significantly greater height than the flat tube profile section, and in particular has a round or oval cross-section. It is particularly expedient if, at the transition from the flat tube profile section to the connection profile section, a transition section formed by a fastening section for a height compensation piece is formed, the surface of which has an offset or recess with respect to the adjacent sections or surfaces of the flat tube profile section and the connection profile section. Conveniently, a correspondingly adapted height compensation piece is then attached to the upper side of the attachment section or transition section, in particular mounted on the upper side of the attachment section and welded there, which extends from the connection profile section to the front holding device for the power supply unit. About the height compensation piece can be achieved that by means of similar sub-tubes, which can then be preferably prepared by hydroforming men in the same printing form, by using different height compensation pieces and different cutting the undercuts frame with different geometry and sizes can be made. The height compensation piece may have a bottom tongue which engages under the locking device at least partially in the assembled state.
    The invention further relates to an electric bicycle with a bicycle frame, with a fixed to the bicycle frame electric motor and with a releasably fastened to the bicycle frame or fixed power supply unit for the electric motor, according to the invention the bicycle frame is formed as described above.
    According to a particularly advantageous embodiment, in particular of an electric bicycle, the electric motor in the assembled state engages, releasably secured to the bicycle frame attachment points engine cover be provided, which are formed in the direction of travel rear attachment points for the engine cover on the engine support and a front in the direction of attachment point by means of Recess is formed on the underside of the flat tube profile section. For this purpose, the recess may be formed in particular as a slot and in the recess is a nut with threaded hole releasably anchored, wherein the threaded hole forms the front attachment point for the engine cover.
    Further advantages and refinements of a bicycle frame or electric bicycle according to the invention will become apparent from the following description of a preferred embodiment schematically shown in the drawing. In the drawing: FIG. 1 schematically greatly simplified a bicycle frame according to the invention with mounted power supply unit and electric motor in side view; Fig. 2 shows the bicycle frame of Fig. 1 without motor, power supply unit and
    Holding devices therefor; Schematically simplified greatly in an exploded view of the down tube, the two holder devices for the power supply unit and the diaphragm; Fig. 4 in a representation similar to Figure 3, the down tube with a Höhenaus equal piece in exploded view. Figure 5 is a schematic greatly simplified sectional view of the transition between rule down tube and engine support member with mounted holding device, aperture and engine cover. Fig. 6 is a schematically greatly simplified sectional view of the transition between the down tube and the engine support element with the screwing in exploded view; and Figure 7 is a view on the underside of the engine support element with mounted
    Engine and disassembled engine cover.
    Figures 1 and 2 show a generally designated by reference numeral 10 bicycle frame for an electric bicycle. The bicycle frame 10 consists in known manner of a plurality of interconnected frame struts, wherein in the figures a seat tube with reference numeral 1, a top tube with reference numeral 2, a head tube with reference numeral 3, a chain stay with reference numeral 4, a seat stay with reference numeral 5 and a Down tube is generally designated by reference numeral 6. The down tube 6 and the seat tube 1, in the embodiment shown also still the chain stay 4, each of which objected to each other welded to a motor support element 7, wherein on the underside of the motor support member 7, as can be seen well in Figure 1, a schematically indicated electric motor 8 solvable anchored via retaining screws.
    To power the electric motor 8 is based on the down tube 6 from a power supply unit 9, which can be optionally disassembled and here by means of a pair of holding devices on the down tube 6 is releasably anchored. As a holding devices on the down tube 6, viewed in the direction of travel further forward, a locking device 11 is attached, which is provided with a lock lock, and also at the transition region between down tube 6 and motor support member 7 is a connection socket (14, Figure 3) with electrical contacting elements arranged for the battery cells in the power supply unit 9, which, however, by means of a diaphragm 13 laterally and upwardly enclosed and covered.
    In Figure 2, the bicycle frame 10 is shown without electric motor, power supply unit, engine cover and holding devices. It can be clearly seen in particular from FIG. 2 that the down tube 6, which is preferably produced by hydroforming, is differently profiled over its length and has a plurality of sections 16, 20, 21 which can be delimited from one another. The down tube 6 has a flat tube profile section 16, which here forms more than half the total length of the down tube 6 and between its underside 17 and its top 18 has a height distance which is considerably smaller than the width of the Flachrohrab-
    Section 16 transverse to the potential direction of travel or length of the down tube 6. The flat tube section 16 preferably has a constant over the entire length cross-sectional profile, but can also, for example, receive a varying over the length cross-sectional profile. The rear end 19 in the direction of travel of the flat tube section 16 is here butt against a mounting surface 7 A on the engine support member 7 and is welded thereto. Adjacent to the flat tube section 16, the down tube 6 has a transition section 20, and at the front end in the direction of travel, the down tube 6 has a connection profile section 21, which is welded to the head tube 3 in a conventional manner and has a significantly greater profile height than the flat tube profile section sixteenth The connection profile section 21 may, for example, have a round or oval cross section. The connection profile section 21 extends from the steering head tube 3 below the top tube 2 over several centimeters and is then provided here with a small offset so that the end portion of the connection profile section 21 tapers onto the attachment surface 7A for the down tube 6 on the engine support element 7. At the transition between terminal profile section 21 and flat tube section 16 is the transition section 20, which is also formed here as a mounting portion 22 for a height compensation piece 24, which is placed on the surface of the transition portion 20 and welded there. The transition section 20 is therefore designed as a fastening section 22 and has for this purpose an offset or recess with respect to the adjacent surfaces of the flat tube profile section 16 and the connection profile section 21, wherein the thickness of the offset or recess corresponds substantially to the sheet thickness of the height compensation piece 24. The height compensation piece 24 can then completely fill this offset or return, so that it is not recognizable on the finished bicycle frame that there is an additional metal sheet is attached.
    Figure 3 shows the down tube 6 with flat tube section 16, connecting section 21 and transition section 20 without height compensation piece in a detailed view together with the dismantled latch device 11, the dismantled connector socket 14 and the not yet welded panel 13. In the connector socket 14 is preferably To an original part of a manufacturer of electric motors for electric bicycles and the connector 14 then consists of two housing half shells 26A, 26B made of plastic, which are arranged by means of snap-in connections with one another inside the socket 14, not shown metallic support bracket coupled around and this in the assembled state Cover that the support bar is not visible. The anchoring of the support bracket via a bottom web of the support bracket, which is screwed by means of the screw for the connection socket 14 at the top 18 of the flat tube section 16 of the down tube 6. The two housing halves 26A, 26B enclose a cavity in which, in the assembled state, an electrical contact plug is arranged, which is connected to the electric motor via a cable 27, which is only indicated here. The front half of the housing 26B in FIG. 3 is provided with the cover 31, which is originally provided by the manufacturer for the connection socket 14 and can be opened and closed, behind which there is a charging socket via which the energy supply unit can be charged to the bicycle frame in the installed state. The panel 13 in turn, which is also welded in the assembled state at the top of the flat tube section 16, and at the same time on the mounting surface (7A, Figure 2) of the motor support member 7 for the down tube 6 has, to enclose the connector socket 14, two side walls 28A , 28B, which are fixedly connected to each other via a roof wall 29. The front side wall 28B in FIG. 3 is provided with a matching recess 30 so that the cover 31 remains accessible even when the connection socket 14 is mounted inside the panel 13 and can be opened to charge the power supply unit. The panel 13 is preferably made of metal and may, for example, be painted in the frame color of the bicycle frame to visually emphasize the integration of the power supply unit and the socket in the bicycle frame, as can be seen well from Figure 1.
    Reference is now made to Figure 4, in which the down tube 6 is shown together with a not yet attached to the mounting portion 22, exemplarily usable height compensation piece 24. The formed directly on the down tube 6 Übergangsab section 20 has a flat portion 20 A whose cross section corresponds approximately to the cross section of the flat tube section 16. Further, it has a transitional slope 20B and a subsequent thereto high portion 20C, whose cross section corresponds approximately to the cross section of the adjacent connection profile section 21; However, the respective surfaces of the portions 20A and 20C are provided with an integrally formed in the hydroforming of the down tube 6 offset, whereby the actual surface in the region of the mounting portion 22, in particular in the two sections 20A and 20C slightly opposite to the adjacent surfaces of the connection profile section 21 and the Flat tube section 16 springs back. Depending on the frame height of the bicycle and the resulting required length of the down tube 6, a matching height compensation piece 24 is then attached to the attachment portion 22, which preferably has exactly the wall thickness corresponding to the offset in the region of the attachment portion 22 relative to the adjacent sections. Each height compensation piece 24 has a flat tongue 25 which extends after attachment of the height compensation piece 24 with its surface parallel to the top 18 of the flat pipe section 16, and also a bridge section 39 and between the bridge section 39 and tongue 25 also has a slope 37, which in the Mounting state of the power supply unit, as Figure 1 shows well, a housing part of the housing of the power supply unit is opposite. The bridging section 39 preferably merges seamlessly into the adjacent region of the connecting section 21 when the height compensation piece 24 is mounted. The welds with which the height compensation piece 24 is attached to the attachment portion 22 can be ground down for this purpose, wherein the subsequent painting of the entire down tube 6 or bicycle frame can completely hide the presence of a height compensation piece 24. Since the distance between the two through holes 32 for the connector and a mounting hole 38 for the latch part for the power supply unit regardless of the frame geometry always remain the same, by the use of height compensation pieces 24, the slope 37 get exactly such a position that they are in the assembled state finished bicycle frame of the power supply unit is opposite, as shown in Figure 1.
    With additional reference to Figures 5 and 6, the screw connection of the socket 14 is now explained with the down tube 6. Both figures show a portion at the transition of the down tube 6 in the motor support member 7 respectively in longitudinal section through the bicycle frame. Due to the position of the section, only the rear side wall 28B and the rear half 26B can be seen from the panel 13 and the connection socket 14. The upper side 18 of the flat tube profile 16 is provided with two through holes 32 lying on the central longitudinal axis of the down tube and therefore in the cutting plane and in extension of the two through holes 32, the underside 17 of the flat tube profile 16 is provided with a recess 33, which consists of a slot here, which extends along the longitudinal center plane of the flat tube profile 16 and serves primarily for mounting nuts 34 and washers 34A, with which the screw connection of the socket 14 from the bottom of the down tube 6 and Flachrohrprofilabschnitts 16 ago. The width of the recess 33 is therefore dimensioned such that the two nuts 34 can be inserted through the recess 33 formed by the slot. Both nuts 34 are screwed onto setscrews 35, which are firmly anchored with its rear end to a support plate 36 and project from the holding plate 36 down here. The holding plate 36 in turn generates the necessary holding surface in order to clamp the connection bush 14, preferably the lower web of the associated support bracket, against the upper side 18 of the flat tube profile 16. Since the panel 13 is already welded to the upper side 18 of the flat tube profile 16 and to the motor support element 7 before the installation of the connection socket 14, the use of a locking clip with holding plate 36 and fixed threaded pins 35 enables the completely pre-assembled connection socket 14 to be closed and the retaining plate Can also be retrofitted with webs covering housing halves within the aperture 13 or released.
    That the recess 33 forming slot in the bottom 17 of a portion of the down tube 6 forming flat tube 16 has in the particularly preferred embodiment a dual function, because it also serves as front in the direction of attachment point for an engine cover 60, in the assembled state the motor 8, which is flanged at the bottom of the motor support element 7 and is therefore positioned below the actual bicycle frame, as protection against splash water and against other impairments engages. The engine cover 60 can be screwed at its rear end 61 in the direction of travel over the two indicated here bolt and Schrasstifte 62 at a suitable location of the nut support member 7. At its front end, the motor cover 60 has a tongue 63 which extends in the assembled state relatively far and tightly along the underside 17 of the flat tube profile 16, and extending at least beyond the position of the recess 33 forming slot. The tongue 63 is provided at a suitable location with a through-hole 64, through which a screw 65 is inserted with its threaded shaft. The screw 65 is screwed into a threaded hole within a preferably rectangular groove nut 44, which can be attached in alignment along its longer axis to the recess 33 and can be anchored by rotation by 90 ° to the recess 33. The position of the nut 44 in the recess 33 can therefore be chosen freely within limits and manufacturing tolerances that could otherwise hinder or prevent mounting of the engine cover 60 can be compensated in the recess 33 due to the free choice and variable position of the nut 44.
    The invention is not limited to the illustrated embodiment. For the skilled person from the foregoing description and the claims numerous modifications, which are intended to fall within the scope of the claims.
    权利要求:
    Claims (10)
    [1]
    claims
    1. Bicycle frame for electric bicycles, with a plurality of frame struts, which form at least one down tube (6), a seat tube (1) and a steering head tube (3) of the bicycle frame, with a motor support element (7) between down tube (6) and seat tube (1) , to which an electric motor can be fastened, and with holding devices on the down tube for a power supply unit for the electric motor, wherein the holding means for the power supply unit screwed to the down tube connecting socket (14) for the power supply unit and spaced therefrom comprise a locking device (11), characterized in that the down tube (6) has a flat tube profile section (16) whose width is greater than the height distance between top side (18) and bottom side (17) of the flat tube profile section (16), wherein on the upper side (18) of the flat tube profile section (16) Receiving devices (14, 11) for the power supply unit and a diaphragm (13) b efestigt are, which surrounds the connection socket (14) at least partially to the side and up, and the screw connection of the connection socket (14) from the bottom (17) forth by at least one recess (33) in the underside of the flat tube profile section attachable and detachable.
    [2]
    2. bicycle frame according to claim 1, characterized in that the diaphragm (13) at the transition from down tube (6) to motor support member (7) both on the flat tube profile section (16) and on the motor support member (7) attached, in particular welded.
    [3]
    3. bicycle frame according to claim 1 or 2, characterized in that the diaphragm (13) has two via a roof wall (29) connected side walls (28A, 28B), of which preferably at least one with a recess (30) is provided.
    [4]
    4. bicycle frame according to claim 1, 2 or 3, characterized in that the connection socket (14) has a support bracket, two enclosing the support bracket and interconnectable housing half-shells (26 A, 26 B) and an electrical connector, wherein the support bracket has a bottom web, the can be fastened or fastened to the down tube by means of the screw connection.
    [5]
    5. Bicycle frame according to one of the preceding claims, characterized in that the screw has a locking clip with retaining plate (36) and two of the retaining plate projecting threaded pins (35).
    [6]
    6. bicycle frame according to claim 5 and 6, characterized in that the threaded pins (35) are inserted through holes preferably in the bottom web of the support bracket and holes (32) in the top (18) of the down tube (6) and for fixing the connection socket (14 ) on the down tube nuts (34) through the recess (33) in the bottom (17) of the flat tube profile (16) are screwed onto the threaded pins (35).
    [7]
    7. Bicycle frame according to one of the preceding claims, characterized in that the down tube (6) between the steering head tube (3) and flat tube profile section (16) has a connection profile section (21) having a significantly greater height than the flat tube profile section (16), preferably the down tube (6) between the flat tube profile section (16) and the connection profile section (21) has a transition section (20) designed as a fastening section for a height compensation piece (24 '), wherein preferably a surface of the transition section (20) is offset or recessed relative to the adjoining sections the flat tube profile section (16) and the connection profile section (21).
    [8]
    8. bicycle frame according to claim 7, characterized in that at the attachment portion (22) in the transition from the flat tube section (16) to the connection profile section (21) a height compensation piece (24) is fixed, preferably with the height compensation piece at the top (17) of the Flachrohrprofilabschnitt ( 16) extending from the connection profile section (21) to the locking device (11), wherein further preferably the height compensation piece (24) has a bottom tongue (25), which engages in the assembled state, the locking device (11) at least partially.
    [9]
    9. Electric bicycle with a bicycle frame, with a bicycle frame (10) fixed electric motor (8) and with a releasably on the bicycle frame (10) attachable or fixed power supply unit (9) for the electric motor (8), characterized in that the bicycle frame according to a of claims 1 to 8 is formed.
    [10]
    10. bicycle frame according to one of claims 1 to 8 or electric bicycle according to claim 9, characterized by the electric motor (8) under mounting, releasably secured to the bicycle frame (10) at fastening points engine cover (60), wherein the rear in the direction of attachment for the Motor cover (60) on the motor support element (7) are formed and a front in the direction of travel attachment point by means of the recess (33) on the underside (17) of the flat tube profile section (16), preferably wherein the recess (33) is formed as a slot and in the recess is releasably anchored to a tapped nut (40) with threaded hole, the threaded hole forming the front attachment point for the engine cover (60).
    类似技术:
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    同族专利:
    公开号 | 公开日
    DE202016102118U1|2017-08-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE102011005520A1|2011-03-14|2012-09-20|Grace Gmbh & Co.Kg|Bicycle frame, in particular for electric bicycles, with a recording spanning profile element|
    DE102013204556A1|2012-03-16|2013-09-19|Specialized Bicycle Components, Inc.|Bicycle with integrated cable management|
    DE202013103315U1|2013-07-23|2014-10-27|Zeg Zweirad-Einkaufs-Genossenschaft Eg|Bicycle frame, bicycle hereby and power supply unit for this|
    EP3109146A2|2015-06-26|2016-12-28|Specialized Bicycle Components, Inc.|Bicycle frame with improved battery mount|
    AT555976T|2009-03-20|2012-05-15|Thoemus Veloshop Ag|BICYCLE FRAME FOR RECEIVING A BATTERY UNIT AND ASSOCIATED BATTERY UNIT|
    DE202011106258U1|2011-10-04|2012-02-07|Robert Bosch Gmbh|Frame element and engine for a bicycle|
    DE202014009732U1|2014-07-18|2014-12-19|Robert Bosch Gmbh|Retaining element for an accumulator and pipe element and bicycle frame with holding element|
    DE202014007473U1|2014-09-18|2015-09-21|Robert Bosch Gmbh|Frame element for receiving an energy store for use in a two-wheeler|CN108128396A|2018-02-05|2018-06-08|天成车料（深圳）有限公司|Electric bicycle integral type middle pipe and hydro-forming method|
    DE102018116408A1|2018-07-06|2020-01-09|Pexco Gmbh|Bicycle frame with a drive mount|
    US10906609B2|2018-08-21|2021-02-02|Specialized Bicycle Components, Inc.|Ebike motor mount|
    USD929268S1|2019-08-20|2021-08-31|Serial 1 Cycle Company, Llc|Bicycle|
    DE102019129906A1|2019-11-06|2021-05-06|Iko Sportartikel-Handels-Gmbh|Bicycle frame and associated bicycle|
    法律状态:
    2020-12-15| MM01| Lapse because of not paying annual fees|Effective date: 20200430 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE202016102118.9U|DE202016102118U1|2016-04-21|2016-04-21|Bicycle frame and electric bicycle hereby|
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