• 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:
    Hand brake (6) for a carriage (1) with a hand brake lever (8), a rotation axis (7, 21), a brake claw (9) and at least one bearing plate (10, 20) which can be rigidly connected to the carriage (1), wherein the Hand brake lever (8) with the axis of rotation (7, 21) and the brake claw (9) is connected and the axis of rotation (7, 21) on the bearing plate (10, 20) is rotatably mounted, wherein the bearing plate (10, 20) has a passage opening (11, 22) with a in the through hole (11, 22) projecting stop (12, 25), wherein the axis of rotation (7, 21) in the through hole (11, 22) is received, and the stop (12, 25 ) on the rotational axis (7, 21) in a preferably counter to an actuating direction (13) of the handbrake (6) directed rotational movement of the axis of rotation (7, 21) abuts.
    公开号:AT519750A4
    申请号:T8007/2018
    申请日:2017-09-22
    公开日:2018-10-15
    发明作者:Ferner Reinhard
    申请人:Ferner Reinhard；
    IPC主号:
    专利说明:

    Summary:
    Hand brake (6) for a carriage (1) with a hand brake lever (8), an axis of rotation (7, 21), a brake claw (9) and at least one bearing plate (10, 20) which can be rigidly connected to the carriage (1), the Hand brake lever (8) is connected to the axis of rotation (7, 21) and the brake claw (9) and the axis of rotation (7, 21) is rotatably mounted on the bearing plate (10, 20), the bearing plate (10, 20) having a through opening (11, 22) with a stop (12, 25) projecting into the through opening (11, 22), the axis of rotation (7, 21) being received in the through opening (11, 22), and the stop (12, 25 ) on the axis of rotation (7, 21) in a rotational movement of the axis of rotation (7, 21) preferably directed counter to an actuation direction (13) of the handbrake (6).
    (Figure 2) / 12
    22020-AT
    Hand brake for sledges
    The invention relates to a handbrake for a carriage with a handbrake lever, an axis of rotation, a brake claw and at least one bearing plate which can be rigidly connected to the carriage, the handbrake lever being connected to the axis of rotation and the brake claw and the axis of rotation being rotatably mounted on the bearing plate.
    Hand brakes are used on sledges to control the speed during the sled run and to bring the sled to a stop if necessary. Equipping sledges with hand brakes reduces the likelihood of an accident and the risk of injuries for a sled driver, since the hand brake provides the possibility of controlling the sled run more effectively and safely than is possible with pure physical effort on the part of the sled driver, for example by braking with the loses. When the handbrake is actuated, the handbrake rotates about the axis of rotation, the brake claw engaging in the track on which the carriage slides. The resulting frictional forces slow down the sled or bring it to a standstill.
    Hand brakes for sledges are known from the prior art, which have axes of rotation in the form of continuous tubes. This standard of the axis of rotation has the disadvantage that a firm, resilient and long-term stable connection between the axis of rotation and the hand brake lever can only be ensured by means of complex learning methods. For example, the axis of rotation and the hand brake lever can be welded together. High-quality weld seams that can withstand the stresses that occur at the welding points require trained personnel and involve time-consuming preparation work. Furthermore, the surfaces of the weld seams have to be treated. The time required for this processing step is within the same range as that for the welding process itself, especially for stainless steel welded joints. An alternative to welded connections is provided by screw connections between the axis of rotation and the hand brake lever, although these are difficult to implement. A disadvantage of this connection method is that the bores required for the screw connections considerably weaken the cross sections of the axis of rotation and the hand brake lever. Furthermore, round tubes do not have any straight surfaces, which are necessary for a safe and reliable screw connection.
    To ensure that the handbrake is always within reach of the sled driver, the swivel range of the handbrake must be restricted. At least the handbrake lever should be at the level of a seat when the handbrake is not actuated
    2/12
    22020-AT of the carriage. Hand brakes according to the prior art have the disadvantage that the swiveling range of the hand brakes can only be restricted with complex stop structures on the slide. Furthermore, the fixed connection between the axis of rotation and the handbrake lever means that there are no adjustment options. Another disadvantage of the prior art is that the depth of engagement of the brake claw cannot be changed subsequently. These disadvantages complicate the entry of hand brakes on sleds into the mass market and complicate or prevent retrofitting of hand brakes according to the prior art on existing sleds.
    It is the object of the present invention to provide a handbrake which overcomes the disadvantages of the prior art.
    According to the invention, the present object is achieved in that the bearing plate has a through opening with a stop projecting into the through opening, the axis of rotation being received in the through opening and the stop striking the axis of rotation in a rotational movement of the axis of rotation, preferably directed counter to an actuation direction of the handbrake.
    The design of the hand brake according to the invention achieves the advantage that the stop of the hand brake is preferably implemented for a movement against the actuation direction by the shaping of the through opening of the bearing plate, as a result of which no separate stop mechanism has to be provided on the slide. As a result, the swiveling range of the hand brake against the actuation direction is restricted without any structural changes to the slide itself. As a result, the handbrake according to the invention is also particularly suitable for retrofitting on an existing carriage without a handbrake. The stop of the handbrake can also be used to restrict the swivel range in the direction of actuation, if the handbrake does not previously strike a stop region on the slide itself, which limits it.
    According to the preferred embodiment of the hand brake, the hand brake lever is also non-positively fixed to the axis of rotation by means of a pipe clamp. This achieves the advantage that the hand brake lever can be fixed in different positions along the toboggan, which means that the depth of engagement can also be changed subsequently. It is particularly advantageous that an adaptation of the hand brake according to the invention to different slides can also be carried out in this way.
    3/12
    22020-AT
    Advantageous embodiments of the handbrake according to the invention are explained in more detail below with reference to the figures.
    Figure 1 shows a sled with a hand brake according to the invention in a view from below.
    Figure 2 shows the carriage according to Figure 1 in a side view.
    FIG. 3 shows a detailed illustration of a bearing plate of the handbrake according to the invention with a through opening and an axis of rotation accommodated therein.
    Figure 4 shows a portion of the axis of rotation of the handbrake according to the invention in a preferred embodiment.
    FIG. 5 shows the slide according to FIG. 1 and FIG. 2 is a sectional illustration normal to a direction of travel of the slide.
    FIG. 6 shows a further embodiment variant of the through opening of the bearing plate and the axis of rotation accommodated therein.
    FIG. 1 shows a commercially available slide 1 in a view from below with two curved runners 2. Furthermore, the slide 1 comprises two feet 3 and two cross struts 4 oriented normally to a direction of travel of the slide, which are shown in FIG. 2 and in FIG feet 3 are covered. The runners 2 and the cross struts 4 are firmly connected to one another via the feet 3. The carriage 1 has two spars 5, each above the two runners 2, which are mounted on the cross struts 4 along the direction of travel. The cross struts 4 form with the spars 5 the basis for a seat which is not shown in the figures and which is generally formed from seat belts and is of flexible design. A handbrake 6 according to the invention is attached to the carriage 1 and consists of an axis of rotation 7, a handbrake lever 8, a brake claw 9 and a bearing plate 10, the bearing plate 10 being rigidly connectable to the carriage 1. The embodiment of the hand brake 6 shown in FIG. 1 has two brake claws 9 and two bearing plates 10. The hand brake lever 8 is connected to the axis of rotation 7 and the brake claws 9. In Figure 1, the two bearing plates 10 are rigidly connected to the carriage 1. This rigid connection can be realized, for example, by means of wood screws. The axis of rotation 7 is rotatably mounted on the bearing plate 10.
    FIG. 2 shows the carriage 1 shown in FIG. 1 with the hand brake 6 according to the invention in a side view, the bearing plate 10 having a through opening 11 with a stop 12 projecting into the through opening 11. The axis of rotation 7 is also received in the through opening 11.
    FIG. 3 shows the bearing plate 10 with the through opening 11 in a detailed representation, it being visible that the handbrake 6 is in an opposite direction of actuation 13
    4.12
    22020-AT directed rotational movement of the stop 12 strikes the axis of rotation 7. In the preferred embodiment of the handbrake 6 shown, the axis of rotation 7 has a first recess 14 into which the stop 12 engages. When the rotational axis rotates counter to the actuation direction 13, the stop 12 strikes one side of the first recess 14, as a result of which the rotational movement is limited. This achieves the advantage that no separate stop has to be attached to the slide 1 in order to limit the rotary movement of the hand brake 6. If the hand brake 6 is actuated, the stop 12 likewise limits the rotational movement in the actuation direction 13 by striking the opposite side of the first recess 14 of the axis of rotation 7.
    In one embodiment variant of the carriage 1, the carriage 1 can also be a
    Have stop area, which is not shown in the figures, the hand brake lever 8 strikes the stop area when the hand brake 6 is actuated, and the pivoting range of the hand brake 6 is thus limited. This has the advantage that the swivel range of the handbrake 6 is always optimally adapted to the respective carriage 1. Furthermore, in the preferred embodiment variant, the stop area can be arranged on a cross strut 4 oriented normally to the direction of travel. Alternatively, the stop area can be arranged on a foot 3. This has the advantage that the stop area is designed to be particularly stable.
    FIG. 4 shows the axis of rotation 7 of the handbrake 6 according to the invention in the preferred embodiment. This shows a first recess 14 which, in the preferred embodiment of the handbrake 6, is opened in the direction of one end of the axis of rotation 7. This achieves manufacturing advantages by simplifying the subsequent assembly of the handbrake 6 on the slide 1, since the axis of rotation 7 can be pushed onto the stop 12. If the axis of rotation 7 is received at both ends by a bearing plate 10, this also prevents an axial displacement of the axis of rotation 7, and the axis of rotation 7 is fixed in the axial direction without additional fixing devices such as circlips.
    As shown in Figure 3 and Figure 4, the axis of rotation 7 has in the preferred
    Embodiment has a substantially square cross section. This ensures a particularly effective stop construction and increases the stability of the axis of rotation 7. Furthermore, the axis of rotation 7 in FIG. 4 has a second recess 15 and two drill holes 16, which are arranged on both sides of the second recess 15. According to one embodiment variant, the axis of rotation 7 can also have a substantially circular cross section.
    5/12
    22020-AT
    Figure 5 shows the carriage 1 according to Figure 1 and Figure 2, in a sectional view normal to the direction of travel at the position of the axis of rotation 7. In the embodiment shown in Figure 5, the axis of rotation 7 has two second recesses 15, the
    Hand brake lever 8 is positioned in the second recesses 15. This achieves the advantage that the handbrake 6 is particularly compact and a large contact surface is provided for connecting the handbrake lever 8 and the axis of rotation 7. Furthermore, the handbrake 6 in the preferred embodiment has at least one pipe clamp 17. In the embodiment variant of the handbrake 6 shown in FIG. 5 with two bearing plates 10 and two second recesses 15, the handbrake 6 has two pipe clamps 17. The pipe clamps 17 are fastened to the axis of rotation 7 and span the second recess 15, the pipe clamps 17 non-positively fixing the handbrake lever 8 in the second recesses 15 of the axis of rotation 7. This has the advantage that the hand brake lever 8 is rigidly connected to the axis of rotation 7 without the need for complex welding work. Furthermore, this construction enables the hand brake 6 according to the invention to be adapted to different slides 1. According to an alternative embodiment of the hand brake 6 according to the invention, the hand brake lever 8 can also be welded to the axis of rotation 7 in the second recess 15. The advantage achieved here is that the larger contact area, which is provided between the hand brake lever 8 and the axis of rotation 7 through the second recess 15, enables a much more stable weld connection to be achieved than is possible with spot welds. In the preferred embodiment shown in FIG. 5, the handbrake 6 further comprises four screw connections 18 and two plastic pads 19. In the embodiment with a pipe clamp 17, the handbrake 6 comprises a plastic pad 19, which is positioned between the pipe clamp 17 and the handbrake lever 8. For the fixed connection between the axis of rotation 7 and the hand brake lever 8, the hand brake lever 8 is inserted into the two second recesses 15. Then the pipe clamps 17 and the plastic pads 19 are placed on the protruding pipe halves of the hand brake lever 8, the foam pads 19 being positioned between the pipe clamps 17 and the hand brake lever 8. By tightening the screw connections 18, the hand brake lever 8 is clamped between the pipe clamps 17 and the axis of rotation 7. The clamping force is at least so great that, despite the braking forces acting, there is no displacement of the hand brake lever 8 relative to the axis of rotation 7. The advantage of the plastic pads 19 is that the coefficient of friction between the pipe clamps 17 and the hand brake lever 8 is higher than when the pipe clamp halves 14 and the hand brake lever 8 lie directly against one another. This means that smaller clamping forces are required for the fixed connection. It can be mentioned that the plastic pads 19 are made of rubber-like materials such as EPDM or foam rubber and have a certain Shore hardness. The spring rate of the plastic pads 19 can be defined via the Shore hardness, whereby the advantage is obtained that
    6/12
    22020-AT in the event of an unintentional loosening of a screw connection 18, a certain clamping force is maintained and, as a result, the fixed connection between the axis of rotation 7 and the hand brake lever 8 remains. The detachable screw connections 18 make it possible to move the hand brake lever 8 freely and fix it in the desired position. This has the advantage that the swiveling range can be adjusted by the variable positioning and, in a further sequence, the depth of engagement of the brake claws 10. The braking action also decreases due to the smaller depths of engagement, but there is the advantage over this that when the handbrake 6 is used, the toboggan run traveled is less damaged. According to a further embodiment variant, the hand brake lever 8 has a grip area 26, which is shown in FIG. 1 and is made of plastic, for example. The grip area 26 can be designed, for example, as a plastic tube connected to the hand brake lever 8 or as a plastic covering of the hand brake lever 8. Furthermore, the entire hand brake lever 8 can be made of plastic.
    FIG. 6 shows a further embodiment variant of the bearing plate 20 and the axis of rotation 21. In this embodiment variant, the through opening 22 has a constriction 23, and the axis of rotation 21 has a recess 24 at the position of the constriction 23, the recess 24 receiving the constriction 23 , Furthermore, the through opening 22 has two stops 25 which protrude into the through opening 22. This has the advantage that the axis of rotation 21 is fixed in the axial direction without additional fixing mechanisms and with only one bearing plate 20. The constriction 23 extends over an angular range of approximately 90 °. When the axis of rotation 21 is introduced into the
    Through opening 22, the axis of rotation 21 is rotated approximately 90 °, and then pivoted into the position shown in Figure 6. The limitation of the swivel range of the handbrake 6 by the stop 25 prevents the rotational axis 21 from rotating by more than this angular range in the assembled state of the handbrake 6, as a result of which the axial fixation of the rotational axis 21 is retained.
    The axis of rotation 21 shown in FIG. 6 also has no first recess 14, as in the embodiment shown in FIGS. 3 and 4. However, in the embodiment variant shown, the axis of rotation 22 has a substantially square cross section, so that the pivoting range of the axis of rotation 21 in the through-opening 22 is limited by the two stops 25, since the stops 25 rotate the axis of rotation 21 on the circumference of the axis of rotation 21 attacks.
    7/12
    22020-AT
    权利要求:
    Claims (10)
    [1]
    Expectations:
    1. hand brake (6) for a carriage (1) with a hand brake lever (8), an axis of rotation (7, 21), a brake claw (9) and at least one bearing plate (10, 20) rigidly connectable to the carriage (1), wherein the hand brake lever (8) is connected to the axis of rotation (7, 21) and the brake claw (9) and the axis of rotation (7, 21) is rotatably mounted on the bearing plate (10, 20), characterized in that the bearing plate (10 , 20) a through opening (11, 22) with a
    Has through opening (11, 22) projecting stop (12, 25), the axis of rotation (7, 21) being received in the through opening (11, 22), and the stop (12, 25) on the axis of rotation (7, 21) in a rotational movement of the axis of rotation (7, 21) which is preferably directed against an actuation direction (13) of the handbrake (6).
    [2]
    2. Hand brake (6) according to claim 1, characterized in that the axis of rotation (7) has a first recess (14), and the stop (12) engages in the first recess (14).
    [3]
    3. Hand brake (6) according to claim 2, characterized in that the first recess (14) is open in the direction of one end of the axis of rotation (7).
    [4]
    4. Hand brake (6) according to claim 1, characterized in that the
    Through opening (22) has a constriction (23) and the axis of rotation (21) has a recess (24) at the position of the constriction (23), the recess (24) receiving the constriction (23).
    [5]
    5. Hand brake (6) according to one of claims 1 to 4, characterized in that the axis of rotation (7, 21) has a substantially square cross-section.
    [6]
    6. Hand brake (6) according to one of claims 1 to 5, characterized in that the axis of rotation (7, 21) has a second recess (15), and the hand brake lever (8) is positioned in the second recess (15).
    [7]
    7. Hand brake (6) according to claim 6, characterized in that the hand brake (6) has at least one pipe clamp (17), the pipe clamp (17) being fastened to the axis of rotation (7, 21) and the second recess (15) spanned, the pipe clamp (17) fixes the hand brake lever (8) in the second recess (15) of the axis of rotation (7, 21).
    [8]
    8/12
    22020-AT
    8. Hand brake (6) according to claim 7, characterized in that the hand brake (6) has a plastic pad (19) which is positioned between the pipe clamp (17) and the hand brake lever (8).
    [9]
    9. carriage (1) with a handbrake (6) according to one of claims 1 to 8, characterized in that the carriage (1) has at least one stop region, and the handbrake lever (8) in the actuating direction (13) of the handbrake (6 ) strikes the stop area.
    [10]
    10. The slide (1) according to claim 9, characterized in that the slide (1) has at least one cross strut (4) oriented normal to a direction of travel of the slide (1), and the stop region is arranged on the cross strut (4).
    9.12
    1.3
    10/12
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    同族专利:
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    引用文献:
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    US1148291A|1913-03-24|1915-07-27|Safety Specialty Company|Combined steering and braking mechanism.|
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    US441167A|1890-11-25|Sled-brake |
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    AT518776B1|2016-08-31|2018-01-15|Ferner Reinhard|Carriage with automatic safety brake|DE202019106821U1|2019-12-06|2021-03-09|Graf Engineering & Co. KG|Brakeable slide|
    法律状态:
    优先权:
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    EP18194154.3A| EP3459818B1|2017-03-07|2018-09-13|Hand brake for sleds|
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