Ski brake

Abstract

Ski brake with two brake pins (6) which can be brought from a non-fixed position into a fixed position in which the brake pins (6) are held in a position to the side of the ski, further comprising a brake housing (4), a pedal (5), a lever-like brake support (7) which has a knob-like projection (7a), and a locking lever (8) which is rotatably mounted on the brake housing (4) and can be brought into a lowered and a raised position.The locking lever (8) is arranged on a locking bolt (11) which is rotatably mounted on the brake housing (4) and can be rotated to a limited extent relative to the locking lever (8), on which at least one torsion spring (14) is arranged in such a way that, in order to establish the fixed position of the brake pins (6), in a first phase with the pedal (5) raised, the locking lever (8) can be raised and in a second phase after the pedal (5) has been pressed down, the locking bolt (11) holds the brake support (7) via the knob-like projection (7a).

Description

[0001] The invention relates to a ski brake with two brake pins, which can be moved from a non-fixed position into a fixed position, in which the brake pins run in a position to the side of the ski, further comprising a brake housing, a pedal, a lever-like brake support which is pivotally mounted on the pedal and on the brake housing, presses the pedal into the raised position by means of a spring element and has a knob-like projection, as well as a locking lever which is rotatably mounted on the brake housing and can be brought into a lowered and a raised position.

[0002] Such a ski brake is known, for example, from EP 3 750 604 A1. In this known design, the locking lever has a section by means of which it is pivotally connected to the brake housing, and another bow-shaped section which is lowered in the non-fixed position (entry position and downhill position) of the brake pins. The section of the locking lever mounted on the brake housing is provided with a recess arranged such that a knob-like extension of the brake support can move freely when the pedal is lowered and raised in the entry and downhill positions of the ski binding, as well as when a ski boot inserted into the ski binding is released.To lock the ski brake and fix the brake pins in a position to the side of the ski, the pedal must be fully depressed by hand so that the brake support with its knob-like projection comes into a position in which the locking lever engages the knob-like projection of the brake support and thereby holds the brake pins of the ski brake in a position to the side of the ski.

[0003] It is therefore necessary to press down and hold the pedal against the force of the spring element that pushes the pedal into the raised position, in order to then establish the locked position, a position with the brake pins fixed to the side of the ski, by raising the locking lever.

[0004] The invention is based on the object of being able to bring the brake pins of a ski brake of the type mentioned at the beginning into the position fixed to the side of the ski in a significantly more comfortable manner, above all it should no longer be necessary to press and hold the pedal by hand in order to actuate the locking lever.

[0005] The stated object is achieved according to the invention in that the locking lever is arranged on a locking bolt which is rotatably mounted on the brake housing and can be rotated to a limited extent relative to the locking lever, on which at least one torsion spring is arranged in such a way that in order to establish the fixed position of the brake mandrels, in a first phase with the pedal raised the locking lever can be raised while the locking bolt is also turned, and in a second phase by pressing the pedal down the knob-like projection of the brake support rotates the locking bolt against the force of the torsion spring relative to the locking lever until it passes the locking bolt, wherein the locking bolt then rotates back due to the torsion spring and holds the brake support via the knob-like projection.

[0006] The invention makes it possible to first move the locking lever into its raised position and then, by depressing the pedal, in particular by means of the ski or touring boot inserted into the toe piece of the binding, to move the locking bolt into a position in which it holds the knob-like extension of the brake support and thus the brake support in its lowered position, thereby holding the brake pins to the side of the ski. Pivoting the locking lever upwards, which can be performed by hand or using a ski pole, requires only minimal force. Depressing the pedal in the second phase is carried out comfortably, preferably by the boot, which has already been inserted into the toe piece positioned for touring.

[0007] In a preferred embodiment, a support element is formed at each end of the locking bolt, which cooperates with a stop surface on the locking lever in order to pre-tension the torsion spring(s).

[0008] Furthermore, a particularly preferred embodiment is one in which the locking bolt has a recess in the center for receiving the knob-like projection of the brake support in the lowered position of the locking lever, such that the brake support and the pedal can be moved unhindered in this position of the locking lever.

[0009] In a particularly advantageous embodiment of the ski brake, the locking lever is releasably snapped into the brake housing in both its lowered and raised positions, preferably in a recess in the brake housing. Preferably, the locking lever has a central part connecting the side parts, which is provided with a recessed section by means of which the locking lever releasably snaps into recesses in the brake housing. This design ensures that the locking lever retains its position in both the lowered and raised positions. "Fixing" the locking lever in the raised position is particularly important during the second phase.

[0010] The stop surfaces which interact with the support elements of the locking bolt are expediently formed on the side parts of the locking lever, in particular the stop surfaces are formed within openings of the side parts which receive the support elements.

[0011] Preferably, two torsion springs, which are torsion coil springs, are arranged on the locking bolt, one end of which is hooked onto the locking bolt and the second end of which protrudes with the locking bolt through the brake housing and is held in the side part of the locking lever located there, so that a functionally reliable and expedient design and arrangement of the springs is ensured.

[0012] A compact design of the ski brake is supported by the fact that the side parts of the locking lever are accommodated in lateral recesses of the brake housing.

[0013] In a further advantageous embodiment, a tab is attached to each side panel, from which a projection protrudes, which, when the locking lever is lowered, points toward the top of the ski. This design allows the locking lever to be raised using a ski pole, in particular using a ski pole handle, a further feature that supports convenient operation of the ski brake.

[0014] Further features, advantages and details of the invention will now be described in more detail with reference to the partly schematic figures showing embodiments of the invention. Fig. 1 an oblique view of a ski brake coupled to a heel piece in the non-fixed position of the brake pins with indicated actuation by means of a ski pole handle, Fig. 2 the ski brake with the non-fixed position of the brake pins in a sectional view along the longitudinal center plane of a ski not shown, Fig. 3 a top view of the ski brake including heel jaws, Fig. 3a a detail of the ski brake with the non-fixed position of the brake pins in a sectional view according to the line III - III in Fig. 3 marked cutting plane, Fig. 4 in an oblique view details of the ski brake with raised locking lever, Fig. 5 the ski brake in its position with the locking lever raised in a sectional view along the longitudinal center plane of a ski (not shown), Fig. 6 the ski brake in an intermediate position when the pedal is pressed down and in a sectional view along the longitudinal center plane of a ski not shown, Fig. 7 the ski brake coupled to the heel piece in side view after pressing down the pedal with a ski boot and in the fixed position of the brake pins, which are swung up to the side and Fig. 8 the ski brake with the fixed position of the brake pins in a sectional view along the median plane running in the longitudinal direction of a ski not shown.

[0015] The description and claims refer to a ski brake coupled to a heel piece mounted on a ski, without depicting the ski itself. The following terms referring to the ski are used: Longitudinal direction of the ski: the longitudinal direction of the ski when viewed from above. Transverse direction: a direction perpendicular to the longitudinal direction of the ski and parallel to the top surface of the ski when viewed from above. Median plane of the ski: the plane running centrally in the longitudinal direction of the ski and perpendicular to the top surface of the ski.

[0016] Directional and positional information or related terms such as "top" or "bottom" of components, "forward" or "backward", "top" or "bottom" refer to the orientation of the components in question with respect to the ski, the top surface of the ski, the longitudinal direction of the ski, the transverse direction or the tip or tail of the ski.

[0017] The term "fixed position of the brake pins" means the fixed position of the brake pins on the side of the ski.

[0018] The term "non-fixed position of the brake pins" means a position in which the pedal is pressed or can be pressed into the raised position by spring force.

[0019] The Fig. 1 and 7 The heel piece 1 shown together with a coupled ski brake 2 is arranged in a manner known per se on a guide rail 1c attached to the ski (not shown) and can be releasably fixed thereon in various longitudinal positions. The heel piece 1 shown is one of the two binding pieces of an alpine downhill binding with a safety release suitable for touring. The toe piece (not shown) is a toe piece suitable for touring, which can be moved further forward for touring so that the ski boot can be lifted unhindered at the heel.

[0020] The heel jaw 1, designed for safety release, comprises a sole holder 1a, an opening lever 1b, and a base housing 3 with a base part that projects forward beyond the sole holder 1a, so that a brake housing 4 of the ski brake 2 can be positively but detachably connected to the base part in front of the sole holder 1a by means of engagement elements (not shown). Alternatively, the brake housing 4 is connected to the base housing 3 by means of screws.

[0021] Main components of the ski brake 2 are, for example, Fig. 1 und Fig. 2 show, in addition to the aforementioned brake housing 4, a pedal 5, two brake pins 6, a rod-like brake support 7 and a locking lever 8. The two brake pins 6 are designed in a manner known per se and have bearing sections 6a by means of which they are pivotally mounted on the brake housing 4. The brake pins 6 are articulated to the underside of the pedal 5 with end sections running in the transverse direction. In an alternative embodiment, the brake pins 6 are components of a one-piece brake bracket, which is mounted on the underside of the pedal 5 with a U-shaped bracket section.

[0022] The brake support 7 is pivotally connected at one end to the rear of the end sections of the brake pins 6 and centrally to the underside of the pedal 5 by means of a transversely oriented bolt (not shown in the figures). The brake support 7 is pivotally connected at its second end to the brake housing 4 by means of a transversely oriented bolt 9. A recess formed centrally in the brake housing 4 accommodates the brake support 7 when the pedal 5 is depressed. A spring element 10, which is bent in the manner of a bow and has a curved section and two lateral sections in the embodiment shown ( Fig. 2 ), in the example a torsion spring, pushes the pedal 5 away from the brake housing 4 and is supported slidingly on the underside of the pedal 5, surrounds the bolt 9 with windings and is supported by end sections on the brake housing 4.

[0023] The design of the locking lever 8 is based on the Figur 4 explained in detail. The locking lever 8 is designed like a bow and has two lateral, preferably plate-shaped side parts 8a, oriented particularly perpendicular to the top of the ski, and a central part 8b connecting them, which is provided with a recessed section 8c in the center. A locking pin 11, rotatably mounted on the brake housing 4 to the rear of the pin 9, connects the two side parts 8a and thus ensures a rotatable mounting of the locking lever 8 on the locking pin 11.

[0024] On each side part 8a of the locking lever 8, a tab 12 is attached, which points in the direction of the adjacent ski side and from which a short projection 12a protrudes, which in the non-fixed position of the brake pins 6 of the ski brake 2 ( Fig. 1 ) towards the top of the ski. Each projection 12a allows the locking lever 8 to be grasped by means of the handle 13a of a ski pole 13 and pivoted upwards. Fig. 1 For this purpose, as shown in FIG. 1, the handle 13a of the ski pole 13 is provided at its outer end with a gripping projection 13b having a groove 13c, such that the outer end of the extension 12a engages in the groove 13c and the locking lever 8 can be raised. Alternatively, the locking lever 8 can be raised manually.

[0025] For example Fig. 3 combined with Fig. 4 As shown, the locking bolt 11 extends laterally through the brake housing 4 with its ends and then through the side parts 8a of the locking lever 8, and is seated with a support element 16, which is semicircular in plan view of the side parts 8a, as an end section in an outer opening 17 of each side part 8a. The support element 16 has a flat boundary surface along the "chord of a circle," forming a support surface 16a. Each opening 17 is delimited by an inner wall, which, in plan view of the side part 8a, extends over a circular section of, for example, approximately 300°, adapted to the support element 16, such that the inner wall ends at a flat stop surface 17a adapted to the support surface 16a and an end surface 17b delimiting the freedom of movement of the support element 16 within the opening 17. In an alternative embodiment, the stop surface 17a is formed on a web or the like projecting from the inner wall.The designs of the support element 16 and the opening 17 are coordinated with one another in such a way that the support element 16 is supported with its support surface 16a on the stop surface 17a upon rotation of the locking bolt 11 and actuation of the locking lever 8, as will be described below.

[0026] In the non-fixed position ( Fig. 1 ) of the brake pins 6 of the ski brake 2 and in the downhill position with the ski boot inserted and the pedal 5 depressed, recesses on the brake housing 4 ensure that the locking lever 8 does not protrude beyond the top of the brake housing 4. The side parts 8a of the locking lever 8 are located in lateral recesses of the brake housing 4, the middle part 8b is located in further recesses formed on the brake housing 4. As the sectional view in Fig. 2 shows, the recessed portion 8c formed on the central part 8b of the locking lever 8 is, in the non-fixed position, releasably snapped into a recess 4a on the brake housing 4 adapted to the recessed portion 8c. In his high position ( Fig. 5 ), the locking lever 8 snaps releasably into a further recess 4b formed in front of the recess 4a on the brake housing 4 and adapted to section 8c.

[0027] On the inside of each side part 8a of the locking lever 8, a torsion coil spring 14 is arranged under pretension on the locking bolt 11, one end of which, located on the inside of the bolt, is hooked onto the locking bolt 11 and the second end of which projects with the locking bolt 11 through the brake housing 4 and is supported on the inner edge of a recess 18 formed on the outer circumference of the respective side part 8a.

[0028] For example Fig. 4 and the sectional views in Fig. 2 and 5 show, the locking bolt 11 has a central section 11a, in the example with a larger diameter than the adjoining sections, on which a recess 15 is formed, which forms a clearance on the circumference of the locking bolt 11 and interacts with a knob-like projection 7a on the lower or rear end region of the brake support 7 in a manner to be described. The knob-like projection 7a is formed at the level of the bolt 9 of the brake support 7 and has, when the pedal 5 is pivoted upwards ( Fig. 1 ) backwards and with the pedal lowered 5 ( Fig. 8 ) up.

[0029] At the Fig. 2 In the non-fixed position of the brake pins 6 of the ski brake 2 shown, the recess 15 faces the knob-like projection 7a, which is located outside the recess 15. The support surfaces 16a of the support elements 16 of the locking bolt 8 lie on the stop surfaces 17a. When the pedal 5 is pressed down, with the associated lowering of the brake support 7, for example by a ski boot inserted into the ski binding, the position of the locking bolt 11 remains unchanged, and the knob-like projection 7a moves freely within the recess 15. This ensures unhindered depression of the pedal 5. If the ski boot comes free from the ski binding, for example as a result of a fall or by opening the heel piece 1, the pedal 5 can return to the raised position under the action of the spring element 10, and the brake pins 6 can exert their effect.

[0030] For touring, the front jaw of the ski binding is moved to its more forward position so that the heel jaw can accommodate the movement of a ski or touring boot 19 ( Fig. 7 ) is not hindered.

[0031] The fixing of the brake pins 6 of the ski touring brake 2 takes place in two phases. In the first phase, the locking lever 8 is raised or swung upwards by hand or using a ski pole grip, as described, while the pedal 5 is still raised. The locking bolt 11 rotates with its support surface 16a supported on the stop surface 17a. There is no relative movement between the locking bolt 11 and the locking lever 8, and the torsion coil springs 14 retain their preload. When swung upwards, however, the snap connection between the locking lever 8 and the brake housing 4 (recess 4a) is released, whereby after a rotation of, for example, approximately 75°, the locking lever 8 snaps into the recess 4b of the brake housing 4. This position is shown, for example, in the Fig. 5 shown. Due to the rotation of the locking pin 11, the position of the recess 15 on the central section 11a of the locking pin 11 has changed relative to the knob-like projection 7a of the brake support 7, so that the knob-like projection 7a of the brake support 7 can no longer move past the central section 11a.

[0032] In the second phase, the pedal 5 is pressed down together with the brake support 7 with the sole of the ski or touring boot inserted in the front jaw, whereby the knob-like projection 7a of the brake support 7 engages the locking bolt 11 within the recess 15 ( Fig. 6 shows this intermediate position), the locking bolt 11 in the position according to Fig. 6 clockwise slightly - for example, by about 35° - and with a brief increase in the tension of the torsion coil springs 14, finally snapping over one outer edge of the recess 15, whereby the locking bolt 11 subsequently rotates back into its position after the end of the first phase under the effect of the torsion coil springs 14 relaxing again, and the locking bolt 11 grasps the knob-like projection 7a from the side below and thereby fixes the brake support 4 ( Fig. 8 ), so that the brake pins 6 are in their fixed position at the side of the ski. At the end of the second phase, the support surfaces 16a are again in contact with the stop surfaces 17a, and the torsion coil springs 14 are again preloaded as originally. Fig. 7 shows the position of the ski brake 2 with the brake pins 6 in their fixed position, whereby the heel part of a ski or touring boot 19 is also shown.

[0033] To release the fixed position of the brake pins 6 of the ski brake 2, the locking lever 8 is pressed into its lowered position by hand or with a ski pole handle, whereby the stop surfaces 17a engage the support surfaces 16a and rotate the locking bolt 11 until the knob-like projection 7a and thus the brake support 7 are released, whereby the pedal 5 is returned to its raised position under the action of the spring element 10. List of reference symbols

[0034] 1Heel jaw 1aSole holder 1bOpening lever 1cGuide rail 2Ski brake 3Base housing 4Brake housing 4a, 4bRecess 5Pedal 6Brake pin 6aBearing section 7Brake support 7Stub-like projection 8Locking lever 8aSide part 8bMiddle part 8cRecessed section 9Bolt (for brake support) 10Spring element 11Locking bolt 11aCentral section 12Tab 12aAttachment 13Ski pole 13aGrip 13bGripping projection 13cGroove 14Torsion coil spring 15Recess 16Support element 16aSupport surface 17Opening 17aStop surface 17bEnd surface 18Recess 19Ski or touring boot

Claims

1. Ski brake with two brake pins (6) which can be moved from a non-fixed position into a fixed position in which the brake pins (6) extend in a position laterally of the ski, further comprising a brake housing (4), a pedal (5), a lever-like brake support (7) which is pivotally mounted on the pedal (6) and on the brake housing (4), presses the pedal (5) into the raised position by means of a spring element (10) and has a knob-like projection (7a), and a locking lever (8) which is rotatably mounted on the brake housing (4) rearwardly of the mounting of the brake support (7) and can be moved into a lowered and a raised position, characterized by that the locking lever (8) is arranged on a locking bolt (11) which is rotatably mounted on the brake housing (4) and which can be rotated to a limited extent relative to the locking lever (8), on which at least one pre-tensioned torsion spring (14) is arranged in such a way that thatTo establish the fixed position of the brake pins (6), in a first phase with the pedal (5) raised, the locking lever (8) can be raised while also turning the locking bolt (11), and in a second phase by pressing down the pedal (5) the knob-like projection (7a) of the brake support (7) turns the locking bolt (11) against the force of the torsion spring (14) relative to the locking lever (8) until it passes the locking bolt (11), the locking bolt (11) then turns back under the action of the torsion spring (14) and holds the brake support (7) via the knob-like projection (7a).

2. Ski brake according to claim 1, characterized in that at each end of the locking bolt (11) a support element (16) is formed, which cooperates with a stop surface (17a) on the locking lever (8) in order to prestress the torsion spring(s), 3. Ski brake claim 1 or 2, characterized in thatthe locking bolt (11) has a recess (15) in the center for receiving the knob-like projection (7a) of the brake support (7), such that the brake support (7) and the pedal (5) can move freely in the lowered position of the locking lever (8).

4. Ski brake according to one of claims 1 to 3, characterized in that the locking lever (8) is releasably snapped into the brake housing (4) in its lowered and raised position.

5. Ski brake claim 4, characterized in that Locking lever (8) is releasably snapped into a recess (4a, 4b) of the brake housing (4).

6. Ski brake according to one of claims 1 to 5, characterized in thatthe locking lever (8) has a central part (8b) connecting the side parts (8a) and provided with a recessed section (8c) by means of which the locking lever (8) is releasably snapped into recesses (4a, 4b) of the brake housing (4) in its lowered and in its raised position.

7. Ski brake according to claim 2, characterized in that the stop surfaces (17a) cooperating with the support elements (16) of the locking bolt (11) are formed on the side parts (8a) of the locking lever (8).

8. Ski brake according to claim 7, characterized in that the stop surfaces (17a) are formed within openings (17) of the side parts (8a) which receive the support elements (16) of the locking bolt (11).

9. Ski brake according to one of claims 1 to 8, characterized in thattwo torsion springs, which are torsion coil springs (14), are arranged on the locking bolt (11), one end of which is hooked onto the locking bolt (11) and the second end of which projects with the locking bolt (11) through the brake housing (4) and is held in the side part (8a) of the locking lever (8) located there.

10. Ski brake according to one of claims 1 to 9, characterized in that the side parts (8a) of the locking lever (8) are received in lateral formations of the brake housing (4).

11. Ski brake according to one of claims 1 to 10, characterized in that on each side part (8a) of the locking lever (8) a tab (12) is attached, from which a projection (12a) protrudes, which in the lowered position of the locking lever (8) points towards the top of the ski.

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