• 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:
    In order to ensure a safe lifting of both brake pads of a caliper brake after releasing the brake, a coupling part (10) is provided, which is connected to the movable brake part (8) and the stationary brake part (7) and the movable brake part (8). and the stationary brake part (7) in a mechanical positive coupling with each other, wherein an actuating unit (11) is provided which drives the coupling part (10) during at least part of the actuation of the caliper brake (1), so that the movable brake part (8) is moved relative to the stationary brake part (7) due to the mechanical positive coupling.
    公开号:AT518660A4
    申请号:T50626/2016
    申请日:2016-07-13
    公开日:2017-12-15
    发明作者:
    申请人:Ve Vienna Engineering Forschungs- Und Entw Gmbh；
    IPC主号:
    专利说明:

    Brake caliper
    The subject invention relates to a caliper brake with a stationary brake member and a movable brake member, wherein the stationary brake member and the movable brake member are arranged movable relative to each other in the caliper brake and a first brake pad is disposed on a portion of the stationary brake member or the movable brake member and wherein the caliper brake is provided with a pressing device on which a second brake pad is arranged and which moves the second brake pad when operating the caliper brake to the first brake pad or from the first brake pad, wherein between the first brake pad and the second brake pad at least part of the movable brake part or the stationary Brake part is arranged.
    Saddle brakes, especially as a disc brake, are very widespread and find particular application in vehicles. In a floating caliper brake as a known embodiment of a caliper brake is known to be delivered at a brake at least one brake pad by means of a pressing device to the brake disc. As soon as the brake lining comes into contact with the brake disk, the second, opposing brake lining is delivered by the acting reaction forces and the floating mounting of the brake caliper until both brake linings are in contact with the brake disk. Another embodiment of a caliper brake is the fixed caliper brake with floating bearing of the brake disc. The function is essentially the same, except that just when delivering a brake pad, the brake disc moves against a second brake pad and the caliper remains fixed. Saddle brakes have the general problem of returning the brake pads after braking, since at least the brake pad can not normally be lifted off the brake disc without pressure device. Only the brake lining actuated by the pressing device can be actively lifted. It is therefore often the case that after braking, when the brake pads should be lifted from the brake disc, a brake pad is not or not completely lifted off the brake disc. As a result, a brake lining grinds against the brake disk after braking, which leads to increased wear (brake lining, brake disk) and losses. In a vehicle, power losses of typically 0.1 kW up to the range of a few kW per brake can occur. On the other hand, these resulting losses naturally increase the required drive power and, in the case of a motor vehicle, thus also the fuel consumption. In particular, in electric vehicles, such a loss is a major problem, since this can significantly reduce the range of the vehicle.
    In order to force a lifting of the two brake pads of the brake disc after braking, there are various approaches in the prior art. Conventional hydraulic floating caliper brakes often use the hydraulic piston O-rings and use the elasticity of the O-rings to actively retract the hydraulic piston. However, this works firstly only on the piston side and secondly only as long as the O-ring is sufficiently elastic, which deteriorates in the course of the operating time of the brake, however. Apart from that, it may still occur that the brake pad adheres to its stop in the caliper, or that the caliper itself jams, which makes such a provision ineffective with the aim of lifting both brake pads. Caliper brakes, especially in vehicles, are operated in very harsh environments in a variety of environmental conditions, resulting in pollution, corrosion and other signs of wear on brake parts. This is also one of the reasons why the two-sided provision via the O-rings does not work or only to a very limited extent.
    Other bilateral recovery approaches use springs or other elastic recovery elements. An example of this is the US 4,193,481 A, in which an elastic sleeve is used, which acts between the floating caliper and the guide. In US 4,375,842 A, in turn, a friction ring between the hydraulic piston and hydraulic cylinder is used in the brake caliper. The friction ring forces the brake pads to be lifted on both sides when releasing the brake. A similar solution can also be found in WO 2010/133463 A1 for an electromechanical friction brake. However, these solutions have the problem of not always reliable lifting of both brake pads after braking.
    It is therefore an object of the subject invention in a simple manner to ensure a safe lifting of both brake pads of a caliper brake after releasing the brake.
    This object is achieved according to the invention in that a coupling part is provided, which is connected to the movable brake part and the stationary brake part and which connects the movable brake part and the stationary brake part in a mechanical positive coupling with each other, wherein an actuating unit is provided which the coupling part during at least a part of the actuation of the caliper brake drives, so that the movable brake part is displaced relative to the stationary brake part due to the mechanical positive coupling. Due to the mechanical forced coupling through the coupling part ensures that when releasing the caliper brake, the movable brake member is moved relative to the stationary brake part, whereby also not moved by the pressing means first brake pad is forcibly lifted from the brake disc. In this way it can be ensured that when releasing the caliper brake both pads are lifted off the brake disc safely.
    The caliper brake according to the invention can be designed as a floating caliper brake, with a caliper as a movable brake part and a brake disc as part of the stationary brake part, wherein the coupling part is arranged on a stationary part of the caliper brake and the brake caliper.
    In a floating caliper brake caliper is preferably arranged displaceably mounted in a saddle guide. A structurally simple design results in this case if between the saddle guide and the caliper a sliding member is slidably mounted as part of the stationary brake part and the coupling part is optionally arranged on the sliding part. Although the sliding member is slidably mounted, but due to the high forces acting during braking, at least during the release of the caliper brake, quasi stationary and thus part of the stationary brake part. The sliding part is centered by the high forces also automatically when operating the floating caliper brake, which also any displacements of the sliding part, e.g. due to a wear adjuster, and any changes in the caliper brake, e.g. due to wear, be compensated automatically.
    Alternatively, the caliper brake is designed as a fixed caliper brake with sliding brake disc, with a brake caliper as a fixed brake part and a brake disc as part of the movable brake part, wherein the coupling part is arranged on the movable part of the caliper brake and the brake caliper.
    In a preferred, structurally very simple and robust embodiment, the coupling part is designed as an actuating lever which is rotatably mounted at a first articulation point on a part of the stationary brake part and which is rotatably mounted at a second articulation point on a part of the movable brake part. The extent of the relative movement between the movable brake part and the stationary brake part can also be adjusted in a simple manner via the lever arm.
    In a particularly advantageous embodiment, the actuating lever is rotatably mounted on a third articulation point on the pressing device as an actuating unit. Thus, the pressing device also serves as an actuating unit for the actuating lever. Thus, no separate actuator unit is needed, which can simplify the construction of the caliper brake.
    The coupling part can also be designed as a cam mechanism with a lift-off cam, wherein the lift-off cam interacts with the movable brake part via an elevation cam. This also results in a structurally simple to implement. In addition, the lift-off movement can be very flexibly controlled or adjusted by designing the survey curve. Again, it is particularly advantageous if the lifting jack is co-driven by the pressing device, since then no separate operating unit is needed.
    The subject invention will be explained in more detail below with reference to Figures 1 to 9, which show by way of example, schematically and not by way of limitation advantageous embodiments of the invention. It shows
    1 and 2 brake a caliper brake according to the invention with coupling part in the form of a floating caliper,
    3 and 4 a caliper brake according to the invention with coupling part in the form of a fixed caliper brake with sliding brake disc,
    5 and 6, a caliper brake according to the invention with coupling part in the form of a floating caliper brake and a sliding part,
    7 shows an alternative actuation of the movable brake part in a fixed caliper brake by the coupling part and
    Flg.8 and 9 each show an embodiment of the caliper brake according to the invention with a cam mechanism as mechanical forced coupling.
    A caliper brake 1 consists essentially of a caliper 2 on which a first brake pad 4 is arranged, a brake disc 3 and a pressure device 6, on which a second brake pad 5 is arranged. The caliper brake 1 serves to brake a translational movement (e.g., in an elevator brake) or rotational movement (e.g., a rotational movement of a vehicle wheel or a rotating machine part). For this purpose, the two brake pads 4, 5 are pressed against the brake disc 3, whereby a braking effect (braking force or braking torque) is formed. Under brake disc 3 is understood in the context of the invention, any friction surface, which cooperates with the brake pads 4, 5 to achieve a braking effect. Between the friction surface and the brake pads 4, 5 there is a relative movement (rotation, translation), which is braked by the caliper brake. Basically, there are two types of caliper brakes 1, namely a floating caliper brake and a fixed caliper brake.
    In a floating caliper brake, as shown in Figures 1 and 2, the brake disc 3 is arranged stationary as part of the stationary brake part 7 and the caliper 2 movably arranged as a movable brake part 8. "Stationary" means that the stationary brake part 7 is mounted rigidly relative to the device in which the caliper brake 1 is arranged. However, of course, a movement to be braked by the caliper brake 1 (e.g., rotational movement of a vehicle wheel or a translational movement in an elevator brake) should not be hindered. The device itself, example, a vehicle or an elevator car, can of course be moved. Accordingly, "movable" means that the movable brake part 8 is movable relative to the stationary brake part 7.
    Using the example of a vehicle as a device and a caliper brake 1 on a vehicle, the stationary brake part 7 (brake disc 3) would be immovably arranged, for example, on a wheel bearing, wherein the rotational movement of the vehicle wheel, which is non-rotatably connected to the brake disc 3 (fixed brake part 7), through the stationary storage is not hindered. In the case of a floating caliper brake caliper 2 is the movable brake part 8, which is arranged displaceably, for example, transversely to the direction of rotation of the brake disc 3 in a saddle guide 9. The caliper guide 9 allows the transverse movement of the caliper 2 and at the same time prevents the caliper 2 is moved during braking by the friction forces occurring with the rotating brake disc 3.
    In a floating caliper brake is therefore pressed in a known manner by the pressing device 6 of the caliper brake 1, the second brake pad 5 on the pressing device 6 against the brake disc 3 (fixed brake part 7). Due to the resulting reaction forces, the brake caliper 2 (movable brake part 8) moves with the first brake pad 4 arranged in the caliper guide 9 until both brake pads 4, 5 rest against the brake disc 3 and upon further actuation, a braking effect (braking force, braking torque) is generated. The brake disc 3, which forms the friction surface, as part of the stationary brake part 7 is arranged between the two brake pads 4, 5.
    In a fixed caliper brake with displaceable brake disc 3, as shown in Figures 3 and 4, it is exactly the opposite. Here, the caliper 2 is the fixed brake part 7 and the brake disc 3, which is arranged displaceably mounted in the caliper brake 1, forms part of the movable brake part 8. The above statements apply analogously. When pressing the fixed caliper brake, the second brake pad 5 is pressed with the pressing device 6 against the brake disc 3 (movable brake part). In this case, the brake disc 3 shifts in the direction of the stationary brake caliper 2 and the first brake pad 4 arranged thereon until both brake pads 4, 5 are in contact with the brake disc 3 and the desired braking effect is achieved with further pressing. The brake disc 3, which forms the friction surface, as part of the movable brake part 8 is arranged between the two brake pads 4, 5.
    The pressing device 6 comprises a movable holding part 16 on which the second brake pad 5 is arranged. The holding part 16 can be driven and moved by a Andrückantrieb 17 of the pressing device 6, in particular to the brake disc 3 are moved towards or away. In principle, any pressure drive 17 can be provided. Common Andrückantriebe 17 are hydraulic, pneumatic or electro-mechanical drives, which move the movably mounted holding part 16 with the second brake pad 5. The pressing device 6 is in this case supported on a stationary component, for example on the stationary brake part 7 or on a part of the device in which the caliper brake 1 is used, for example a wheel suspension of a vehicle or a car of an elevator. It is also known that the pressing device 6 can be arranged on a wear adjuster 20, which is then e.g. is disposed on a stationary component of the device, such as e.g. indicated in Fig. 1. With the wear adjuster 20, the air gap L between lifted brake pad 5 and the brake disc 3 can be adjusted in a known manner to compensate for the wear of the brake pads 4, 5.
    The construction and function of such caliper brakes 1 is known per se, so that it will not be discussed further here. From WO 2010/133463 A1, for example, an electromechanical floating caliper brake 1 can be taken, which is particularly suitable for the subject invention
    When operating the caliper brake 1, the two brake pads 4, 5 are pressed with the pressing device 6 against the brake disc 3 in a known manner as described above, whereby a braking effect is generated by the applied pressing force, e.g. in the form of a braking torque. When releasing (as part of the actuating movement) of the caliper brake 1, the pressing device 6 lifts the second brake lining 5 arranged thereon from the brake disk 3. A basic known problem of a caliper brake 1 is that the first brake pad 4 when releasing the caliper brake 1 may not or not completely lifted off the brake disc 3, but only the actively moving second brake pad 5. Due to the upright contact between the first Brake pad 4 and brake disc 3 is created on the one hand in a brake-free condition a loss that must be applied by the drive of the braked device (eg a vehicle). These losses result in undesirably increased drive consumption (e.g., fuel or electrical energy). On the other hand, of course, the wear of brake disc 3 and first brake pad 4 is increased, which is also undesirable.
    To counteract this, a coupling part 10 is provided according to the invention, which is connected to the movable brake part 8 and the stationary brake part 7 and connects the movable brake part 8 and the stationary brake part 7 in a mechanical positive coupling. The mechanical positive coupling ensures that the movable brake part 8 is moved relative to the stationary brake part 7 when the coupling part 10 is moved. For this purpose, an actuating unit 11 is provided which the
    Coupling part 10 at least partially during the release of the caliper brake 1 drives. The actuating unit 11 for moving the coupling part 10 can be carried out arbitrarily. Advantageously, to actuate the coupling part 10, the pressure applied by the contact pressure device 6 anyway used to move the coupling member 10 at the same time. Therefore, "mechanical positive coupling" means that the movable brake member 8 is moved relative to the stationary brake member 7 when the coupling member 10 is driven by the operating unit 11. This relative movement can, at least partially, independently of the movement of the pressing device 6, and the holding part 16, take place. The forced coupling can of course be limited to that direction or movement that leads to the desirable lifting of the first brake pad 4.
    The coupling part 10 also does not always have to generate exactly that movement which also occurs during the application or release of the friction brake 1. Unbalances and differences between these movements can be compensated, e.g. by spring action, slight displacement of the sliding part 21 (see below) or game. The coupling part 10 can generate the movements however, e.g. also via elevation curves (e.g., cams) and possibly fasteners that pass the motion on the elevation curves.
    In the embodiment of Figure 1, ie the example of a floating caliper brake as a caliper brake 1, the coupling part 10 is designed as an actuating lever 12 which is rotatably mounted both on the stationary brake member 7 and the movable brake member 8. The pivot point 13 of the lever 12 on the stationary brake part 7 is of course also held stationary and preferably only allows pivoting of the lever 12 about this articulation point 13. The stationary brake part 7 includes, for example in a vehicle brake, the wheel bearing, the hub and the rotatably connected brake disc 3, as indicated in Fig. 1. The actuating lever 12 is hingedly mounted at a second pivot point 14 on the brake caliper 2 as a movable brake part 8. The actuating lever 12 is thus a rigid component between the two articulation points 13,14. If the actuating lever 12 is pivoted about the first fixed pivot point 13 on the stationary brake part 7, shifts by the mechanical positive coupling of the caliper 2, so the movable brake part 8 relative to the stationary brake part 7. Here, the caliper 2 with the first brake pad 4 depending on the direction the pivoting movement to the brake disc 3 or moved away. When releasing the caliper brake 1, the actuating unit 11 drives the coupling part 10 in order to pivot it and thereby forcibly lift the first brake pad 4 from the brake disk 3. After the second brake pad 5 is lifted off the pressing device 6, a complete lifting of both brake pads 4, 5 can be ensured.
    In the exemplary embodiment according to FIG. 1, the actuating lever 12 extends beyond the first articulation point 13 as a coupling part 10. The thus formed, the second pivot point 14 opposite end of the actuating lever 12 is rotatably mounted on the pressing device 6 in a further articulation point 15. The first articulation point 13 on the stationary brake part 7 is thus between the two outer articulation points 14, 15. If the pressure device 6 is actuated for braking, so moved toward the brake disc 3, at the same time the operating lever 12 is wasted around the first pivot point 13, whereby the caliper 2 is also moved in the direction of the brake disc 3 with the first brake pad 4, which leads to a centering of the brake caliper 2. Thus, the braking is supported because the full contact of both brake pads 4, 5 is achieved with the brake disc 3 earlier (Fig. 1). When releasing the caliper brake 1, the pressing device 6 is moved away from the brake disc 3, whereby the actuating lever 12 is now wasted in the other direction about the first pivot point 13. At the same time, however, the brake caliper 2 with the first brake lining 4 is forcibly lifted off the brake disk 3 by the actuating lever 12 (FIG. 2). Although it is a matter of course and is also indicated in Fig. 1 and Fig.2, the pivot point 14 on the brake caliper 2 and the pivot point 15 on the pressure device 6, if necessary, also allow a translational movement of the lever 10, which for example by a storage in a slot is possible. In this advantageous embodiment, the pressing device 6 thus simultaneously forms the actuating unit 11 for the coupling part 10 and the actuating lever 12 can be actuated both during actuation, as well as when releasing the caliper brake 1.
    Instead of a lever 12, of course, other mechanical forced couplings for the realization of the coupling part 10 are conceivable. For example, a toothed or Reibradradgetriebe could be considered as coupling part 10. For this purpose, a first gear driven by the actuating unit 11 could be mounted in the first stationary articulation point 13 and engage in a toothed rack on the brake caliper 2. The first gear could be driven by a arranged on the pressing device 6 second gear to again use the Andrückbewegung for the actuation of the coupling part 10. Also, a coupling mechanism or cam mechanism as a coupling part 10 would be conceivable. An example of this will be described below with reference to Figure 8 the example of a caliper brake 1 with floating caliper.
    In Figure 8, the pressing device 6 comprises a rotatably mounted and driven (eg with an electric motor as Andrückantrieb 17) drive cam 30. The drive cam 30 cooperates with its elevation curve (cam gear) with a movable holding part 32, on which the second brake pad 5 is arranged , The survey curve rolled on one
    Surface of the holding member 32 from which is thus moved according to the survey curve, preferably to the brake disc 3 is moved towards or away. The movement away from the brake disc 3 can also be effected by a return spring. The pivot point 31 of the drive cam 30 is mounted in the caliper brake 1, for example on a stationary brake part. The holding part 32 with the second brake pad 5 can thus be moved relative to the pivot point 31. It is further provided a lifting cam 33, which is preferably also driven by the Andrückantrieb 17 of the drive cam 30, so that the actuating unit 11 is again formed by the Andrückantrieb 17. Of course, the lifting cam 33 can again identify a separate actuating unit 11 independent of the pressing drive 17. The lifting cam 33 acts with its elevation curve with the caliper 2, so the movable brake part 8 together. In the embodiment of Figure 8, the survey curve acts on a plunger 34 which engages the caliper 2. Of course, the drive cam 30 can also act directly on the caliper 2. It thus created by the lifting cam 33 again a mechanical forced coupling between the movable brake part 8 and the stationary brake part 7. The lifting cam 33, optionally with plunger 34, thus forming the coupling part 10. When operating the caliper brake 1, the holding part 32 is moved to the second brake pad 5 by rotating the drive cam 30 to the brake disc 3. At the same time the lifting cam 33 is rotated away when operating the brake disc 3. In this case, it could be provided that the lifting cam 33 entrains the brake caliper 2 during this movement, whereby at the same time the first brake pad 4 could be delivered to the brake disk 3. When releasing the caliper brake 1, the direction of rotation of the cam is reversed. The lifting cam 33, directly or via a plunger 34, acts on the caliper 2 and, due to the mechanical forced coupling, displaces the caliper 2 with the first brake pad 4, so that the first brake pad 4 is forcibly lifted off the brake disc 3. Of course, such a cam gear can also be used analogously in a caliper brake 1 with a displaceable brake disk 3.
    Even with a fixed caliper brake with displaceable brake disc 3, as shown in Figure 3, a coupling member 10 may be used in an analogous manner to forcibly lift the two brake pads 4, 5 of the brake disc 3. In an advantageous embodiment, the coupling part 10 is again designed as an actuating lever 12 which is rotatably mounted in a first articulation point 13 on the stationary brake part 7, here on the brake caliper 2. The actuating lever 12 is rotatably mounted in a second articulation point 14 on the movable brake part 8, here the displaceable brake disc 3 or on the displaceable mounting of the displaceable brake disc 3. A pivoting of the lever 12 by means of the actuating unit 11 leads through the mechanical forced coupling again to the fact that the displaceable bearing with the brake disc 3 is moved with the actuating lever 12. This can be used to lift the brake disc 3 when loosening the caliper brake 1 from the first brake pad 4 on the caliper 2 (Figure 4).
    Here, it is again advantageous to use the pressing movement of the pressing device 6 for the actuation of the coupling part 10, as shown in Figure 3. For this purpose, the actuating lever 12 is rotatably mounted again with one end in the pressing device 6. If the pressing device 6 is moved away from the brake disc 3, the actuating lever 12 is simultaneously pivoted, whereby the brake disc 3 is moved away from the caliper 2 at the same time. When pressing the caliper brake 1, the pressure device 6 is moved toward the brake disc 3, whereby at the same time the brake disc 3 is centered and the braking is supported.
    Again, the actuator 11 may be basically arbitrary and does not necessarily have to be formed by the pressing device 6. Likewise, the coupling part 10 may also be designed differently, for example, again as a gear,
    Friction wheel, cam or coupling gear.
    Ideally, the two brake pads 4, 5 are completely lifted off the brake disc 3 before the start of braking, as shown in FIGS. 3 and 4, so that there is a desired air gap between them, which does not necessarily have to be the same on both sides. As already mentioned, a wear adjuster 20 may be provided to maintain the air gap within a defined range and / or to operate the brake in a favorable operating range to achieve desired braking effects. Due to the design, it comes with a floating caliper brake to a contact between the running as a floating caliper caliper 2 and the caliper guide 9 and / or between a brake pad 4, 5 and a stop for the brake pad 4, 5 in the floating caliper 2. In case of contamination, corrosion or other possible damage it may occurrences that the brake caliper 2 is stuck in the caliper guide 9 and / or that a brake pad 4, 5 is stuck in the brake caliper 2 or adheres to the brake disc 3. Due to the mechanical forced coupling by the coupling part 10 such situation can be prevented and in these cases a safe lifting of the two brake pads 4, 5 are ensured by the brake disc.
    With reference to Figures 5 and 6, a further advantageous embodiment of a caliper brake 1 according to the invention in the form of a floating caliper brake is described. The storage of the coupling part 10 on a stationary component of the device in which the caliper brake is used is structurally not always easy to implement due to the often very tight space conditions in a caliper brake 1. To remedy this problem, a sliding part 21 is arranged. For reasons of clarity, components 5 and 6 which are not absolutely necessary for explaining the function and effect of the sliding part 21 are no longer shown in the figures.
    The displacement part 21 is arranged between the caliper guide 9 and the brake caliper 2 (movable brake part 8), so that the caliper 2 can now be supported on the displacement part 21 and guided on this. The displacement member 21 thus prevents the caliper 2 during braking due to the frictional forces in the direction of movement of the relative movement between the brake disc 3 and the brake pads 4, 5 is moved.
    The sliding part 21 in turn is supported on the saddle guide 9 and is guided on this. The displacement part 21 is movably arranged in the direction of the movement of the brake caliper 2 between the caliper 2 and the saddle guide 6, as indicated by the double arrow. Due to the very high forces acting on a braking force (pressure force by pressing device 6, supporting force of the caliper 2 on the sliding part 21, resulting friction forces between the components) the sliding member 21 is held quasi stationary during braking and thus part of the stationary brake part. 7
    Between the sliding part 21 (fixed brake part 7) and the movable brake part 8, in turn, the coupling part 10 is arranged, which connects the movable brake part 8 and the stationary brake part 7 in a mechanical positive coupling. In the illustrated embodiment, the coupling part 10 is again designed as an actuating lever 12. For this purpose, a pivot point 13 is provided for the rigid actuating lever 12 on the displacement part 21, on which the actuating lever 12 is arranged rotatably mounted. A first end of the actuating lever 12 is rotatably mounted on a first pivot bearing 14 on the movable brake part 8 (caliper 2). The actuating lever 12 is in turn pivoted by an actuating unit 11, as described above. Likewise, it is again advantageous if the pressing device 6 is designed simultaneously as an actuating unit 11. In this case, the opposite second end of the actuating lever 12 may be rotatably mounted in a pivot point 15 on the pressing device 6, as described above.
    In Figure 5, the actuated caliper brake 1 is shown. If the caliper brake 1 is released by lifting the movable brake pad 5 by means of the pressure device 6 (indicated by the arrow in FIG. 6), the actuating lever 12 is rotated by the pivot point 13. After the sliding part 21 bears against the saddle guide 6 and this is held in place due to the static friction acting by the forces occurring, the mechanical caliper coupling also simultaneously moves the caliper 2 in the opposite direction (indicated by the arrow in FIG. 6). This in turn means that the brake lining 4 fixedly attached to the brake caliper 2 is likewise lifted off the brake disc 3. In this way, a two-sided lifting of the brake pads 4, 5 are enforced.
    When braking with the caliper brake 1 with a sliding part 21, when the second movable brake pad 5 is moved with the pressing device 6 to the brake disc 3, the caliper 2 centered by the reaction forces occurring as described above. Due to the occurring during braking high forces in the caliper brake 1 and the mechanical positive coupling between the sliding part 21 and the caliper 2 centered at the same time the sliding part 21. Thus, the sliding member 21 when loosening the caliper brake 1 is always the optimal position to both Brake pads 4, 5 safely lifted off the brake disc. This also automatically compensate for any displacements of the sliding part 21 in the released state of the caliper brake 1, as well as changing conditions in the caliper brake 1 (caused for example by wear) are compensated. Such displacements can be caused, for example, by a wear adjuster 20, on which the pressing device 6 is arranged (see FIG. 1).
    It is advantageous if the displacement part 21 is arranged on both sides of the caliper 2 between the caliper guide 9 and the caliper 2 2.
    A displacement part 21 could also be arranged at any other location. It is essential that it is centered as described on actuation of the caliper brake 1 and from this centered position carries out the lifting of the first brake pad 4, in which the sliding part 21 has sufficient static friction to a stationary position.
    In FIG. 9, analogously to FIG. 8, an exemplary embodiment of a caliper brake 1 with floating caliper 2 and displacement plate 21 with a cam mechanism for mechanical positive coupling is shown. In this example, the drive cam 30 also acts on the holding part 32 via a drive plunger 35. The pivot point 31 of the lift-off cam 33 is here arranged on the brake caliper 2 (movable brake part 8). The lifting cam 33 thus acts between the sliding plate 21 (fixed brake part 7) and the caliper 2 (movable brake part 8) and forms again the coupling part 10. The lifting cam 33 is driven here by the Andrückantrieb 17 of the drive cam 30.
    In Figures 3 and 4, the slidable brake disc 3 is realized by a sliding bearing, i. the bearing of the brake disc 3, and thus also the brake disc 3 itself, is displaced by the mechanical forced coupling by the coupling part 10. Of course, other designs are conceivable here as well.
    In FIG. 7 (caliper 2 and pressing device 6 not shown for simplicity), for example, an actuating part 22 engages in a displacement groove 23 of the brake disk shaft 24. The actuating part 22 is moved by the movement of the coupling part 10, which in turn is driven by the actuating unit 11. The brake disk shaft 24, on which the brake disk 3 is arranged rotationally fixed, is in turn displaceably mounted. By moving the operating member 22 so that the brake disk shaft 24 is moved to the brake disk 3 as indicated by the double arrow. The coupling part 10 is again designed as an actuating lever 12 which is mounted at a pivot point 13 on the stationary brake part 7 (caliper 2, not shown) and is mounted with a further pivot point 14 on the movable brake part 8 (brake disc shaft 24 with the brake disc 3).
    Where and how the operating part 22 acts on the brake disk shaft 24 is irrelevant. In particular, the actuating part 22 can also act on an end face of the brake disk shaft 24. Thus, it is also irrelevant whether the operating member 22 pushes or pulls the brake disk shaft 24 with the brake disk 3 to move. However, it is not necessarily a sliding bearing or a sliding groove 23 may be formed. It can also be used to move rotating parts, so in particular the brake disc 3, of course, a removal of the contact rotating parts after the sliding operation is advantageous.
    Of course, the caliper can also be generally seen as a clamping part of the friction surfaces, whereby the invention is equally applicable to multi-disc and disc brakes, wherein the number of friction surfaces can be arbitrary. The friction surfaces also need not be disk-shaped, but may have any meaningful geometry, e.g. also straight or curved surfaces. Both vehicles of all kinds, as well as machines, equipment, propellers, lifting devices, etc. can be braked. The invention can even be applied to internal or external shoe brakes by patenting the back support (which is to be equated with the brake caliper) so that both Baking in the desired movement to be lifted.
    权利要求:
    Claims (10)
    [1]
    claims
    1. caliper brake with a stationary brake part (7) and a movable brake part (8), wherein the stationary brake part (7) and the movable brake part (8) in the caliper brake (1) are arranged movable relative to each other and to a part of the stationary brake part (7) or the movable brake part (8) a first brake pad (4) is arranged and wherein in the caliper brake (1) a pressing device (6) is provided, on which a second brake pad (5) is provided and the second brake pad ( 5) on actuation of the caliper brake (1) to the first brake pad (4) or away from the first brake pad (4), wherein between the first brake pad (4) and the second brake pad (5) at least a part of the movable brake part (8) or the fixed brake part (7) is arranged, characterized in that a coupling part (10) is provided, which is connected to the movable brake part (8) and the stationary brake part (7) and the movable Bremsente il (8) and the stationary brake part (7) in a mechanical positive coupling with each other, wherein an actuating unit (11) is provided which drives the coupling part (10) during at least part of the actuation of the caliper brake (1), so that the movable brake part (8) is displaced relative to the stationary brake part (7) due to the mechanical positive coupling.
    [2]
    2. Caliper brake according to claim 1, characterized in that the caliper brake (1) is designed as a floating caliper brake, with a caliper (2) as a movable brake part (8) and a brake disc (3) as part of the stationary brake part (7).
    [3]
    3. Caliper brake according to claim 2, characterized in that in the caliper brake (1) a saddle guide (9) is provided, in which the caliper (2) is arranged displaceably mounted.
    [4]
    4. caliper brake according to claim 3, characterized in that between the saddle guide (9) and the caliper (2), a sliding member (21) is arranged as a part of the stationary brake member (7) slidably mounted.
    [5]
    5. caliper brake according to claim 4, characterized in that the coupling part (10) is arranged on the displacement part (21).
    [6]
    6. caliper brake according to claim 1, characterized in that the caliper brake (1) as fixed caliper brake with sliding brake disc (3) is executed, with a caliper (2) as a stationary brake part (7) and a brake disc (3) as part of the movable Brake part (8).
    [7]
    7. Caliper brake according to one of claims 1 to 6, characterized in that the coupling part (10) is designed as an actuating lever (12) which is rotatably mounted at a first articulation point (13) on a part of the stationary brake part (7) and which is arranged rotatably mounted at a second articulation point (14) on a part of the movable brake part (8).
    [8]
    8. caliper brake according to claim 7, characterized in that the actuating lever (12) at a third articulation point (15) on the pressure device (6) as an actuating unit (11) is rotatably mounted.
    [9]
    9. caliper brake according to one of claims 1 to 6, characterized in that the coupling part (10) is designed as a cam gear with a Abhebenocke (33), wherein the Abhebenocke (33) via a survey curve with the movable brake member (8) cooperates.
    [10]
    10. Caliper brake according to claim 9, characterized in that the lifting cam (33) is co-driven by the pressing device (6).
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    同族专利:
    公开号 | 公开日
    AT518660B1|2017-12-15|
    EP3269992B1|2018-05-23|
    ES2684804T3|2018-10-04|
    EP3269992A1|2018-01-17|
    PL3269992T3|2018-11-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1845505A|1930-05-28|1932-02-16|Fred E Lockyear|Double disk brake|
    DE10324424A1|2003-05-30|2004-12-16|Robert Bosch Gmbh|Friction brake with mechanical self-reinforcement and method for its actuation|
    WO2010133463A1|2009-05-19|2010-11-25|Ve Vienna Engineering Forschungs- Und Entwicklungs Gmbh|Friction brake|
    WO2014139919A1|2013-03-11|2014-09-18|Ve Vienna Engineering Forschungs- Und Entwicklungs Gmbh|Electrically actuated friction brake|
    DE3332548A1|1983-09-09|1985-03-28|Alfred Teves Gmbh, 6000 Frankfurt|Immobilisable fixed-calliper disc brake|
    DE10004058B4|2000-02-01|2004-12-09|Conti Temic Microelectronic Gmbh|braking device|
    DE102005024119B4|2005-05-25|2007-01-25|Knorr-Bremse Systeme für Nutzfahrzeuge GmbH|Pneumatically and / or electromechanically actuated disc brake for a commercial vehicle|AT520448B1|2018-04-25|2019-04-15|Ve Vienna Engineering Forschungs Und Entw Gmbh|Floating caliper brake|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50626/2016A|AT518660B1|2016-07-13|2016-07-13|caliper brake|ATA50626/2016A| AT518660B1|2016-07-13|2016-07-13|caliper brake|
    PL17180707T| PL3269992T3|2016-07-13|2017-07-11|Calliper brake|
    ES17180707.6T| ES2684804T3|2016-07-13|2017-07-11|Caliper brake|
    EP17180707.6A| EP3269992B1|2016-07-13|2017-07-11|Calliper brake|
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