• 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 drive device comprises a toothed front wheel (2) pivotable about a first straight line (T) with respect to which the toothed wheel (2) presents variable radii. A tread crank (3b) is pivotably arranged about a second straight line (D) horizontally offset with respect to the first straight line (T). Another tread crank (3a) is so connected to the toothed wheel (2) that it is inclined by an angle ( alpha ) comprised between 45<o> and 135<o> in the pedalling direction with respect to the upwardly maximum radius of the toothed wheel (2). When the second tread crank (3a) is in the horizontal position, the first tread crank (3b) is also in a horizontal position. Both tread cranks (3a, 3b) are coupled to each other by a shaft (A) which traverses the toothed wheel (2) and which is fixedly connected to a coupling lever (5) as well as by an oblong hole or slide guiding (6, 10) which enables the relative motion of the two tread cranks (3a, 3b).
    公开号:SU1494859A3
    申请号:SU874028885
    申请日:1987-01-30
    公开日:1989-07-15
    发明作者:Низель Андреас
    申请人:Андреас Низель (DE)；
    IPC主号:
    专利说明:

    4 co. And
    CX)
    ate


    cm
    one
    The invention relates to a bicycle construction, in particular, to a device for driving a bicycle.
    The purpose of the invention is to increase the technological capacity.
    Fig. 1 shows a profile projection of a drive device with a view of a second pedal lever according to a first exemplary embodiment; Fig. 2 shows the opposite side in a horizontal projection with a view to the first pedal lever, which is freely located; in Fig. 3, a profile projection of the drive unit with a view to the freely located first pedal lever with
    According to the second exemplary embodiment of FIG. 4, a profile projection of a drive device with a view to a second pedal lever fixedly connected to a chain sprocket according to a third exemplary embodiment} of FIG. 3 is a profile projection of a drive device according to a fourth embodiment in which the chain sprocket consists of segments ; 6 shows the profile projection of the drive device with a view to the second pedal lever according to the example of embodiment 7; the profile projection of the drive device facing the first pedal lever of FIG. 1 (the chain sprocket is divided into segments) according to the sixth example The handle of FIG. 8 is the same with a chain sprocket, which, according to the seventh embodiment, consists of circular and elliptical segments.
    The driving device for a bicycle, generally designated 1 in Fig. 1, contains a chain sprocket 2, is covered by a bicycle chain 3, and on each side of the chain sprocket 2 are pedal levers 4 or 5, and at the free ends of the pedal levers 4, 5 are reinforced in the usual way pedals (not shown). The arrangement of the bicycle driving apparatus within the bicycle frame 6 is not explained in detail. The pedal lever 5 is the first and the pedal lever 4 is the second pedal lever.
    Referring to Fig. 1, the center A of the chain sprocket 2, from which the outer perimeter of the chain sprocket is at the same radius distance.

    is located outside the center of rotation with displacement relative to the position indicated by the index B of the first straight, coaxially with respect to the axis B of the pedal lever. The chain sprocket 2 is connected to the pedal lever 4 with a closure of the enemy; immobile or stationary, so that when the pedal lever 4 rotates, the chain sprocket 2 rotates around the common point of rotation or the first straight B, which is the central line of the axis B of the pedal lever . This results in the chain sprocket 2 engaging with a variable radius and, consequently, a variable lever length, so that when the chain sprocket 2 rotates, the gear ratios of the lever change.
    five
    0
    with
    0
    five
    0
    On the other side of the chain sprocket 2 (Fig. 1), according to Fig. 2, the connecting lever 7, which has at its free end a guide 8 with a longitudinal slot or a groove and is fixedly connected or with a rotation closure to the axis of the pedal lever, so that By pressing the pedal lever 4, the connecting lever 7 also rotates around the axis B of the pedal lever. The pedal lever 4 is positioned with the possibility of free rotation around the second straight line G (Fig.2), using a ball bearing 9, which is mounted coaxially with the second straight line G. Axis B of the pedal lever passes through the ball bearing 9. The second straight line G of the pedal lever 4 is shifted in the opposite direction to its radial location relative to the axis B of the pedal lever or the first straight B (Fig. 2). In the direction of movement to the left, as seen in Fig. 2, the second straight D is located in front of the first straight B, so that D is closer to the rear wheel than B. In the first embodiment, it turns out that the plane E (cf. Fig. 1 ), in which direct B and A are located, mainly runs vertically with respect to the plane in which direct C and H are located. All direct (A, B and D) are mutually parallel, and A is that direct ma that passes through the geometric center of the circle
    chain sprocket 2 vertically to the plane of the chain sprocket.
    The coupling of the first pedal lever 5 to the chain sprocket 2 is carried out by means of a bolt 10 fixed on the pedal lever 5, which enters the slot of the connecting lever 7 guide 8. The bolt 10 can be connected to the connecting lever 7 fixedly and enter the slot in the first pedal lever 5 .
    The relative position of the second pedal lever 4 on one side of the chain sprocket 2 and the first pedal lever 5 and the connecting lever 7 on the other side of the chain sprocket 2 is such that when the second pedal lever 4 is horizontal (figure 1), the first pedal lever 5 and the connecting lever 7 , on the one hand, and the second pedal lever 4, on the other hand, passes diametrically opposite to the axis B of the pedal lever or the first straight B radially outwards.
    It is also possible to bias diametrically opposed
    asterisks 2 by chain 3 along the radius can be determined by adjusting the angle about, i.e. the orientation of the pedal lever, 4 with respect to the plane G.
    In the optimal position of pressing the pedal lever 4, an appropriate unloading is achieved for a person using a bicycle, since the pedal
    JO lever 5, due to a certain gear ratio, makes a revolution faster.
    In addition, in the case when the pedal lever 5 is in the optimum pressing position, a preferable power ratio is created, however, the chain sprocket 2 enters the chain coverage with the smallest radius. However, the gear ratios of the lever provide almost identical ratios of forces.
    When the pedal arms in accordance with FIGS. 1 and 2 are located in the lower dead point of the first pedal lever, the second pedal lever is still in the upper dead point, approximately 10 times ahead,
    . 35
    40
    due to the clutch pedal lever 5 by means of a bolt 10 s
    pedal lever 4, on the one hand, -JQ fixed relative to the axis B of the pedal lever connecting lever 7 and the displacement of straight lines B, D are relative to each other.
    In the embodiment according to FIG. 3, the first pedal lever 5 is made at one end in the form of a plug 11, which covers on both sides a sleeve 12 disposed freely for rotation and is coaxial with the second straight G. As a result, the first pedal lever 5, in turn is disposed with the possibility of free rotation relative to the axis A of the pedal lever or the first straight B, the slot guiding now falling on the area of the fork 11. The coupling between the first pedal lever 5 and the connecting element is also carried out by means of a bolt 10, which, when the axis B is rotated in the pedal lever or the connecting lever 7, engages the first pedal lever 5. The rest of the second example of the fit of FIG. 3 does not differ from the first embodiment of FIGS. 1 and 2.
    In the third example of the execution of the soybean pedal lever 5, as well as the coupling lever 7, on the other hand, in the angular direction around the axis B of the pedal lever.
    It is important that the pedal lever 4 be disposed with respect to the plane D, in which, according to FIG. 1, are straight B and A, preferably 90 ° in the direction of rotation indicated by the arrow E when the bicycle is moving forward. Preferred conditions are created, however, if the offset of the pedal lever 4 is in the range of angles from about 45 to about 135 °.
    Due to the location of the chain sprocket 2 outside the center, i.e. due to the shift to the axis B of the pedal lever or the first straight B, the maximum radii (or maximum radius, respectively) are in the upper coverage area of the chain sprocket 2 with the chain if the pedal lever 4 is in the optimal position of pressing, i.e. out of dead center position. From the point of view of pressure, the position of the pedal lever 4 is optimum in relation to the high lever due to the chain coverage.
    45
    50
    55
    according to figure 4 the first pedal lever
    asterisks 2 by chain 3 along the radius can be determined by adjusting the angle about, i.e. the orientation of the pedal lever, 4 with respect to the plane G.
    In the optimal position of pressing the pedal lever 4, an appropriate unloading is achieved for a person using a bicycle, since the pedal
    O lever 5, due to a certain gear ratio, makes a revolution faster.
    In addition, in the case when the pedal lever 5 is in the optimum position of pressing, a preferable balance of forces is created, however, the chain sprocket 2 enters the chain with the smallest radius. However, the gear ratios of the lever provide almost identical ratios of forces.
    When the pedal arms in accordance with FIGS. 1 and 2 are located in the lower dead point of the first pedal lever, the second pedal lever is still in the upper dead point, approximately 10 times ahead,
    . 35
    40
    45
    50
    55
    according to figure 4 the first pedal lever
    4 is fixedly connected or with closure of rotation to the connecting lever 7 via the axis B of the pedal lever. The connecting lever 7 on the side of the second pedal lever 4, which is fixedly connected to the chain sprocket 2, has at its free end a guideway 8 with a slot or groove, which includes a bolt 10, which is fixedly connected to the chainlet 2.
    When the second pedal lever 5 is pressed, both the connecting lever 7 and the pedal lever 5 (however, at a different angular ratio) rotate around the pedal lever axis B or the second straight G, which is the center line of the pedal lever B axis.
    In the third example of the embodiment according to FIG. 4, the second straight DG around which the pedal lever 5 rotates is shifted in the direction of the front wheel relative to the first straight B, around which the chain sprocket 2 rotates fixedly connected to the pedal lever 4. However, the second The straight bar can be shifted with respect to the first straight bar B also in the direction of the rear wheel. In this case, the plane D, in which the straight lines B and A lie, with the horizontal and forward-facing position of the pedal lever 5 is located vertically (or mostly vertically) relative to the plane in which the straight lines B and D lie.
    The coupling of the first pedal lever 5 with the chain sprocket 2 is carried out through the connecting lever 7 with the guide slot and the bolt 10 fixed on the chain sprocket 2, which bolts into the slot guide 8.
    In the fourth embodiment according to FIG. 5, on the contrary, the guide 8 with a slot is made in the chain sprocket 2, while the bolt 10 is fixedly connected to the connecting lever 7. Otherwise, the gear ratios of the lever are the same as in the third example of execution ( 4).
    In the fifth exemplary embodiment according to Fig. 6, in contrast to the third embodiment example (Fig. 4), the chain-star bearing 2 or the first straight B is shifted forward in the direction of movement.
    0
    five
    0
    relative to the second straight line, the connecting rod 7 being rotated 180 and positioned with a short circuit of rotation on the axis of rotation of the opposite pedal lever 5. In this case, the bolt is fixedly connected to the chain sprocket 2 and enters the slot of the guide 8 of the connecting lever 7.
    In this case (with the horizontal position of the pedal lever 4), the pedal arms 4 and 5, as well as the connecting lever, are diametrically opposed. Thus, elements 4.5 and 7 simultaneously extend horizontally.
    Otherwise, the provisions already stated in relation to FIGS. 1-3 are in force.
    The sixth exemplary embodiment according to FIG. 7 differs from the first (FIGS. 1 and 2) in that the chain sprocket 2 5 consists of segments 13-16 with different radii. According to FIG. 7, segments 13 and 14, which are diametrically opposed, have the same the radii from their respective vertices a and b to their outer circumference, however, the point of the apex of segment 13 coincides with the first straight line B or with the center of the axis B of the pedal lever, while the point of the top of segment b of the segment 14 is outside the center, i.e. is displaced with respect to the first straight B upward, so that relative to the axis B of the pedal lever or the first straight B, segment 13 has a larger segment and 14 has a smaller ra-. diuses.
    Both other segments 15 and 16 are intermediate and determine the transition from the ratios of the radii of the segment 13 to the ratios of the radii of the segment 14 and vice versa.
    0
    five
    0
    50
    In the presented sixth example of the embodiment according to FIG. 7, segment-, 0
    the angles are 90. However, they may be different. The maximum segment angle is about 135. The location of the lever 4 relative to segment 13 mainly corresponds to the conditions of FIG. 1, the plane D being clamped by both points of the vertices a and b, from which the angle to the pedal lever 4 is measured.
    In these exemplary embodiments (FIGS. 4-6), the chain sprocket can be divided into several segments 13-16, as shown in FIG. 5, for example.
    As mentioned above, when the first pedal lever is in the lower dead center, the second pedal lever is already in the upper dead point with advance by 10, and vice versa (see the location of the pedal levers according to FIGS. 4 and 5), due to the clutch of the pedal lever 5 by means of a bolt 10 with a connecting lever 7, fixedly connected to the axis B, and the displacement of the axes GD. In this case, the axis B of the pedal lever is concentric with respect to the second straight G.
    In the seventh embodiment (Fig. 8), the sprocket 2 is also divided into several (four) of its elements.
    The segment located at the top in the horizontal position of the axis of the pedal lever 4 has a larger circle radius compared to the opposite segment 17, while the segments 18 and 19 located between them are elliptical. Elliptical segments 19, 18 are tangentially adjacent to the circumference of segments 20, 17 (round). Both points of the vertices of the circular segments 20, 17 are, for example, higher than the first straight 6, if the pedal lever 4 is in a horizontal position.
    权利要求:
    Claims (7)
    [1]
    To reduce friction between the bolt 10 and the guide 8 with a slot on the bolt 10, a rolling bearing or a needle bearing box can be placed. Invention Formula
    1, A driving device for a bicycle comprising a shaft, two pedal arms, one of which is located on the shaft, and an sprocket mounted by means of a bearing rotatably on an axis displaced in a horizontal plane relative to the axis of rotation of the pedal arms, one of the pedal arms is rigidly fixed with an asterisk by means of a connection, made in the form of a finger, mounted in sub-bearings in the guide, characterized in that, in order to increase the technical
    five
    0
    five
    0
    five
    0
    five
    0
    five
    It is equipped with an additional lever, one end of which is mounted on the shaft, the axis of rotation of which coincides with the axis of rotation of the pedal levers and the axis of rotation of the sprocket, and the other is connected with the finger, while the asterisk is installed relative to the axis of rotation of the pedal levers in a vertical another pedal lever is rigidly fixed on the sprocket in the direction of the engine forward at an angle of 45-135 °, and the chain tensioner is mounted on the star.
    [2]
    2. A device according to claim 1, characterized in that the guide is made on an additional lever, and the finger is rigidly fixed on the pedal ring mounted on a freely rotating shaft.
    [3]
    3. The device according to claim 1, characterized in that the finger is connected to an additional lever and a freely mounted pedal lever, made in the form of a fork, covering a sleeve, the axis of which is coaxial with the axis of rotation of the pedal arms.
    [4]
    4. The device according to claim 1, characterized in that it is provided with an additional lever mounted in the supports on the side of the pedal lever rigidly mounted on the sprocket and connected with it by means of a finger placed in the guide executed on one of said levers.
    [5]
    5. Device under item 1, characterized in that the shaft of the additional lever relative to the axis of rotation of the sprocket is shifted forward
    in the direction of the bike.
    [6]
    6. The device according to claim 1, characterized in that the asterisk is made in the form of mutually opposing sector parts formed by two surfaces arranged at an angle to one another in the plane of the asterisk, wherein the top of one of the corners is located in the center of the axis of rotation of the chain asterisk the top of the other is at a point offset from the center of this axis.
    [7]
    7. The device according to claim 1, characterized in that the finger is provided with a bearing.
    Priority points:
    05/31/85 on pp. 1-3 and 5-7;
    06/21/86 on clause 4.
    fug /
    Fig.Z
    Fzg.5
    Fig l
    fug. b
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1494859A3|1989-07-15|Bicycle driving gear
    US4030373A|1977-06-21|Variable speed drive for a bicycle
    US4281845A|1981-08-04|Drive system for bicycles and other apparatus
    US4684143A|1987-08-04|Two-wheeled vehicle with hydraulic transmission
    US4642070A|1987-02-10|Automatic variable speed transmission
    EP0634319B1|1999-10-13|Crank device
    US4592738A|1986-06-03|Chain gear for a bicycle
    US4706516A|1987-11-17|Pedal mechanism for a bicycle having the pedal crank radially movable therein
    EP3381787B1|2021-05-05|Bicycle rear derailleur
    US4550906A|1985-11-05|Bicycle type exercise apparatus with indexing pedal cranks
    US4437357A|1984-03-20|Double lever assembly for bicycle speed control
    US20060058132A1|2006-03-16|Gear-shifting apparatus, and bicycle incorporating same
    US6508146B2|2003-01-21|Pedal driving mechanism of bicycle
    US4753435A|1988-06-28|Handle-bar motion unit for exercise bicycles
    US20040072645A1|2004-04-15|Power transmission apparatus
    US5755635A|1998-05-26|Crank device for the transmission of energy with elimination of dead centers, particularly suited for bicycles and the like
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    EP0505026A2|1992-09-23|Slide driving apparatus of press machine
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    US4976658A|1990-12-11|Variable speed transmissions
    RU2689914C1|2019-05-29|Bicycle
    US6145408A|2000-11-14|Mechanism for feature improvement for bicycles and other crankdriven mechanism
    CN200960969Y|2007-10-17|Reciprocating bicycle convenient for sitting and standing
    SU1186297A1|1985-10-23|Uniform-to-irregular rotation converter
    SU1011937A1|1983-04-15|Slider-crank mechanism
    同族专利:
    公开号 | 公开日
    WO1986007023A1|1986-12-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2629467C1|2016-07-25|2017-08-29|Александр Васильевич Дегтярев|Continuously variable-ratio bicycle drive|
    RU2634514C2|2016-10-20|2017-10-31|Александр Васильевич Дегтярев|Bicycle drive with external arrangement of two-shaft interaction system|
    RU2634601C2|2016-08-31|2017-11-01|Александр Васильевич Дегтярев|Transmission for bicycle with built-in functions of free-wheel clutch and braking|
    RU2636441C2|2016-08-31|2017-11-23|Александр Васильевич Дегтярев|Drive for bicycle with internal arrangement of system of two shafts interconnection|DE139418C|
    FR773524A|1934-05-22|1934-11-21|Variable radius crank|
    JPS56501644A|1979-12-05|1981-11-12|
    FR2501146B1|1981-03-06|1986-03-21|Bouffard Claude|CYCLE CRANKSET|
    FR2526392A1|1982-05-05|1983-11-10|Latil Adrien|Drive for pedal cycle - has cam controlling crank arms via rollers to remove dead points in force application|
    DE8518068U1|1985-06-21|1985-08-08|Niesel, Andreas, 8044 Lohhof|Drive device, in particular for bicycles|US4772252A|1986-12-19|1988-09-20|Licencia Talalmanyokat Ertekesito Es Innovacios Kulkereskedelmi Vallalat|Driving gear for vehicles particularly for bicycles|
    US5044226A|1990-07-30|1991-09-03|Wu Ching Rong|Structure of bicycle chain transmission|
    IT1319421B1|2000-06-01|2003-10-10|Sasti S R L|PEDAL DRIVE GROUP FOR BICYCLES OR SIMILAR|
    FR2824042B1|2001-04-30|2003-07-11|Joel Kerjean|ENDLESS TRANSMISSION, ESPECIALLY FOR A BICYCLE AND VEHICLE OR WINCH EQUIPPED WITH SUCH A TRANSMISSION|
    FR2843364B1|2002-08-06|2005-03-18|Jean Maurice Louis Briere|CYCLE PEDAL WITH OPTIMIZED LEVER ARM|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19858516007|DE8516007U1|1985-05-31|1985-05-31|Drive device, in particular for bicycles|
    DE19858518066|DE8518066U1|1985-06-21|1985-06-21|Drive device, in particular for bicycles|
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