Abstract
The invention relates to a cross-country or ski touring binding for connecting a boot to a ski in an articulated manner, comprising a binding base body with a standing surface for a sole of the boot and a ski contact surface for at least indirect contact with the ski. The binding has a holding device comprising a receiving element which allows the boot to and a holding element for holding the boot on the receiving element. The holding element moves between a closed position holding the boot on the receiving element and an open position releasing the boot. The binding also has an actuating element with a rotating handle for switching the holding element from the closed to the open position, comprising a substantially disk-shaped, eccentrically mounted force-transmission element received in a recess of the holding element.
Claims
1. A cross-country or ski touring binding for connecting a boot to a ski in an articulated manner, comprising: a binding base body comprising a standing surface for a sole of the boot and a ski contact surface for at least indirect contact on the ski, a holding device, comprising a receptacle for a pivotable arrangement of the boot about a pivot axis extending in the transverse direction of the binding base body, a holding element for holding the boot on the receptacle, wherein the holding element is mounted on the binding base body to be displaceable between a closed position holding the boot on the receptacle and an open position releasing the boot, and an actuating element which comprises a rotating handle for transferring the holding element from the closed position into the open position, wherein an axis of rotation of the rotating handle extends perpendicular to the standing surface of the binding base body, wherein the actuating element comprises a disk-shaped, eccentrically-mounted force transmission element, which is accommodated in a recess of the holding element such that, by a rotational movement of the rotating handle, the holding element is transferable from the closed position into the open position and vice versa.
2. The cross-country or ski touring binding according to claim 1, wherein the recess of the holding element is designed in a force transmission section of the holding element, wherein the force transmission section is connected via a connecting section to a holding section of the holding element, and wherein the holding section comprises hook-shaped projections.
3. The cross-country or ski touring binding according to claim 2, wherein the hook-shaped projections are displaceably accommodated in slot-shaped recesses in the binding base body.
4. The cross-country or ski touring binding according to claim 1, wherein the recess of the holding element accommodating the force transmission element is closed on the peripheral side.
5. The cross-country or ski touring binding according to claim 1, wherein the recess of the holding element accommodating the force transmission element comprises an open section on a side directed toward the receptacle.
6. The cross-country or ski touring binding according to claim 5, wherein the holding element is mounted to be displaceable against a force of a spring in the closed position.
7. The cross-country or ski touring binding according to claim 6, wherein the spring is arranged between the holding element and a spring abutment, wherein a front end section of the spring abutment is arranged at the open section of the recess of the holding element and is connected in the closed position to an operative section of the disk-shaped force transmission element.
8. The cross-country or ski touring binding according to claim 1, wherein the rotating handle of the actuating element comprises at least one latching element which, in the closed position, engages in a latching position with a latching element on the binding base body.
9. The cross-country or ski touring binding according to claim 8, wherein the rotating handle of the actuating element comprises at least two latching elements arranged at a distance from each other, wherein one of the at least two latching elements is provided in a front end section of the rotating handle facing away from the receptacle in the closed position and another latching element of the at least two latching elements is provided on a rear end section of the rotating handle facing the receptacle, and a plurality of additional latching elements corresponding to each of the at least two latching elements of the rotating handle are on the binding base body.
10. The cross-country or ski touring binding according to claim 9, wherein a first connection plane extends along the standing surface between the one of the at least two latching elements of the rotating handle and a corresponding one of the plurality of additional latching elements of the binding base body and/or a second connection plane extends perpendicular to the standing surface between the other latching element of the at least two latching elements of the rotating handle and a second corresponding latching element of the plurality of additional latching elements of the binding base body.
11. The cross-country or ski touring binding according to claim 8, wherein a latching groove and a spring-mounted latching lug are provided in each case as corresponding latching elements, wherein the latching groove is provided on the actuating element and the latching lug on the binding base body.
12. The cross-country or ski touring binding according to claim 11, wherein the latching lug is designed on a wave-shaped latching element, which comprises a release position on longitudinal sides with respect to a remaining binding base body or remaining actuating element.
13. The cross-country or ski touring binding according to claim 1, further comprising a bearing element which comprises bearing blocks each with a depression for pivotable arrangement of the boot, wherein the depressions of the bearing blocks are arranged adjacent to the receptacle of the holding device in the closed position.
14. The cross-country or ski touring binding according to claim 13, wherein the binding base body and the bearing blocks are designed as one piece, wherein the depressions of the bearing blocks are formed by material cut-outs of the binding base body.
15. The cross-country or ski touring ski kit comprising a cross-country or ski touring binding and comprising a cross-country or ski touring boot pivotably mounted thereon, wherein the cross-country or ski touring binding is designed according to claim 1.
Description
BRIEF DESCRIPTION OF THE FIGURES
(1) The invention is subsequently explained in greater detail by way of preferred exemplary embodiments; however, it is not to be limited to the same.
(2) FIG. 1 schematically shows an exploded view of a cross-country binding according to the invention, in which the rotational movement of a rotating handle is transferred via an eccentric disk to hook-shaped extensions on a holding element, which, in a closed position, holds a hinge axis of the cross-country boot (visible in FIGS. 6, 7) on the cross-country binding.
(3) FIG. 2 schematically shows a top view of the cross-country binding according to FIG. 1 (without the binding base body) in the closed position.
(4) FIG. 3 schematically shows a side view of the cross-country binding according to FIG. 2.
(5) FIG. 4 schematically shows a top view of the cross-country binding according to FIGS. 2, 3 in the rotated state of the rotating handle to release the hinge axis of the cross-country boot by displacing the holding element.
(6) FIG. 5 schematically shows a side view of the cross-country binding in the open position according to FIG. 4.
(7) FIG. 6 schematically shows a cross-country boot in a fixed position to be pivotable on the cross-country binding according to FIGS. 1 to 5, wherein the hinge axis is held by the hook-shaped projections.
(8) FIG. 7 schematically shows the cross-country boot according to FIG. 6, wherein the hinge axis was freed from the hook-shaped projections by rotating the rotating handle.
(9) FIG. 8 schematically shows parts of a cross-country binding according to the invention in which the rotating handle, in the non-rotated state corresponding to the closed position of the holding element, is fixed on the binding base body by a latching connection on the front end and on the rear end respectively of the rotating handle.
(10) FIG. 9 shows the parts of the cross-country binding according to FIG. 8 in the rotated position of the rotating handle, wherein the latching engagement has been released between the rotating handle and the binding base body.
(11) FIG. 10 schematically shows an exploded view of another cross-country binding according to the invention in which the holding element in the closed position is arranged on the binding base body to be displaceable counter to the effect of a spring.
(12) FIG. 11 shows a top view of the cross-country binding according to FIG. 10 (without the binding base body) in the non-rotated position of the rotating handle.
(13) FIG. 12 shows a side view of the cross-country binding according to FIG. 11 in the non-rotated position of the rotating handle.
(14) FIG. 13 shows a top view of the cross-country binding according to FIGS. 10 to 12 in the rotated position of the rotating handle.
(15) FIG. 14 shows a side view of the cross-country binding according to FIGS. 10 to 13 in the rotated position of the rotating handle.
(16) FIG. 15 shows a top view of the cross-country binding according to FIGS. 10 to 14 in the non-rotated position of the rotating handle, wherein the holding element has been displaced against the force of the spring into the open or release position freeing the hinge axis from the hook-shaped projections.
(17) FIG. 16 shows the cross-country binding according to FIG. 15 in a side view.
(18) FIG. 17 shows the cross-country boot in the connection to the cross-country binding in the non-rotated position of the rotating handle.
(19) FIG. 18 shows the cross-country boot shortly before the spring-loaded snapping back of the hook-shaped projections into the engaged position with the hinge axis of the cross-country boot.
DETAILED DESCRIPTION
(20) A cross-country binding 1 for connecting a cross-country boot 2 (see FIGS. 6, 7) to a cross-country ski 3 in an articulated manner is shown in FIGS. 1 to 7. Cross-country kits of this type have been known for a long time in the prior art, so that in the following only the features essential for the invention shall be described. A cross-country binding 1 is shown in the drawing; however, a corresponding embodiment might also be used for a ski touring binding, which may be converted between a climbing position for a pivotable arrangement of a ski touring boot on the ski touring binding and a downhill position for fixing the heel area of the ski touring boot to the ski touring binding.
(21) Binding 1 comprises a binding base body 4 formed from an essentially unyielding (hard plastic) material, which comprises guide rails 4a in a central area. On the upper side, binding base body 4 comprises a standing surface 5a for placing a sole 6 of the (cross-country) boot 2 (see FIGS. 6, 7). On the underside, binding base body 4 comprises an essentially flat ski contact surface 5b, which is mounted in the embodiment shown directly on a (cross-country) ski 3. However, additional plate shaped mounting elements (not shown) may be provided between binding base body 4 and ski 3. In this case, ski contact surface 5a is connected indirectly to ski 3.
(22) In addition, binding 1 comprises a holding device 7 for detachable connection to boot 2. Holding device 7 comprises a receptacle 8 for pivotable arrangement of a hinge pin 2a of boot 2 about a pivot axis 8a (see FIG. 2), which extends in a transverse direction of binding base body 4 (i.e., in the mounted state in a transverse direction of cross-country ski 3). Holding device 7 additionally comprises a holding element 9 for pivotable holding of boot 2 on receptacle 8. For this purpose, holding element 9 comprises a holding section 10 with hook-shaped projections 11. Holding element 9 is mounted on binding base body 4 to be displaceable in longitudinal direction 12 of binding base body 4 (and thus in the longitudinal direction of ski 3) between a closed position, holding hinge axis 2a of boot 2 pivotably on receptacle 8 (see FIGS. 2, 3), and an open position releasing hinge axis 2a of boot 2 (see FIGS. 4, 5). To release hinge axis 2a of boot 2 from receptacle 8, binding 1 comprises an actuating element 13 on the upper side of binding base body 4. Actuating element 13 comprises a rotating handle 14, which is mounted on binding base body 4 to be rotatable about an axis of rotation 15 (see FIG. 3) extending essentially perpendicular to ski contact surface 5b (i.e., essentially in the vertical direction). Correspondingly, rotating handle 14 may be rotated in an essentially horizontal plane in both directions from the non-rotated position, shown in FIGS. 2, 3, into the rotated position, shown in FIGS. 4, 5 (see double arrow 14a in FIG. 2). The rotational movement of rotating handle 14 from the non-rotated position, in which rotating handle 14 is preferably oriented essentially in longitudinal direction 12 of binding base body 4, into the rotated position, in which rotating handle 14 is preferably oriented essentially in the transverse direction of binding base body 4, is converted into the displacement of holding element 9 in longitudinal direction 12 from the closed into the open position.
(23) To transfer the force to holding element 9, actuating element 13 additionally comprises an essentially disk-shaped, eccentrically mounted force transmission element 16, subsequently designed as eccentric disk 16 as a shorted form. Eccentric disk 16 is arranged in a positive locking way on rotating handle 14 by means of a coupling projection 17 so that eccentric disk 16 is connected rotationally fixed to rotating handle 14. To convert the rotating movement of actuating element 13 into the displacement of holding element 9, eccentric disk 16 is accommodated in an elongated or oval recess 18 of holding element 9. By rotating the rotating handle, a bulbous operating section 16a of eccentric disk 16 is pressed against the corresponding abutment surface of holding element 9 in such a way that holding element 9 is displaced from the closed position into the open position and vice versa. In the embodiment from FIGS. 1 to 9, recess 18 accommodating force transmission element 16 is completely closed on the peripheral side.
(24) In the embodiment shown, recess 18 is provided on a force transmission section 19 of holding element 9, which is connected via a connecting section 20 with two connecting bars 21 to holding section 10 of holding element 9, on which projecting hook-shaped projections 11 are formed for engaging around hinge axis 2a of boot 2. Holding section 10, connecting section 20, and force transmission section 19 of holding element 9 are preferably formed as one piece. Force transmission element 16 and rotating handle 14 are connected to each other via a connecting element 22, in this case a screw.
(25) In addition, binding 1 comprises a bearing part 23, which comprises upwardly directed flanks 24 with indentations 25 for accommodating hinge axis 2a. Flanks 24 of bearing part 23 are accommodated in openings 26 of binding base body 4 (see, in particular, FIG. 9). Binding base body 4 comprises slot shaped recesses 27 which are adjacent to openings 26 and in which hook-shaped projections 11 (not visible in FIG. 9) of holding element 9 are displaceably accommodated. In addition, a bearing element 28 is designed as one part on binding base body 4 and comprises bearing blocks 29a with in each case a depression 29b for pivotable arrangement of hinge axis 2a of boot 2. Depressions 29b of bearing blocks 29a are arranged flush with indentations 25 of bearing part 23 in the mounted state, when viewed in the direction of hinge axis 2a. Binding base body 4 is preferably formed from a hard plastic material, whereas in contrast, holding element 9 and bearing part 23 are preferably manufactured from metal.
(26) According to the embodiment from FIGS. 8, 9, rotating handle 14 of actuating element 13 comprises a latching element 30a, which is engaged in the closed position with a latching element 31a formed on binding base body 4. In the embodiment shown, rotating handle 14 of actuating element 13 additionally comprises another latching element 30b, which is in latching engagement with another latching element 31b on binding base body 4 in the closed position. Latching element 30b is provided on a front end section of rotating handle 14 facing away from receptacle 8 in the closed position, and other latching element 30a is provided on a rear end section of rotating handle 14 facing receptacle 8. (First) connecting plane E1 extends essentially parallel to standing surface 5a of binding base body 4 between latching element 30b on rotating handle 14 and associated latching element 31b on binding base body 4. In contrast, (second) connecting plane E2 extends essentially perpendicular to standing surface 5a of binding base body 4 between latching element 30a on rotating handle 14 and associated latching element 31a on binding base body 4. A depression or latching groove 32a and a spring-mounted latching lug 33a are respectively provided on the side of receptacle 8 as corresponding to latching elements 30a, 31a. In the embodiment shown, latching groove 32a is provided on rotating handle 14 and latching lug 33a on binding base body 4. Correspondingly, a depression or latching groove 32b and a spring-mounted latching lug 32b are respectively provided on the side facing away from receptacle 8 as corresponding to latching elements 30b, 31b. In the embodiment shown, latching groove 32b is provided on rotating handle 14 and latching lug 33b on binding base body 4. In the embodiment shown, latching elements 31a, 31b are designed as wave-shaped to form spring-mounted latching lugs 33a, 33b. A release 33c is formed in each case on the longitudinal sides of latching lugs 33a, 33b with respect to the remaining binding base body 4.
(27) An alternative embodiment of the force transmission mechanism between rotating handle 14 and holding element 9 with hooks 11 is shown in FIGS. 10 to 18. Subsequently, only the differences to the embodiment according to FIGS. 1 to 7 shall be addressed.
(28) In the embodiment from FIGS. 10 to 18, holding element 9 is mounted on binding base body 4 to be displaceable in the closed position against the force of a spring 34, for example, a helical spring. For this purpose, recess 18 of holding element 9 comprises an open (i.e., not delimited by an abutment surface of holding element 9) section 35 on the side of receptacle 8. Spring 34 is arranged between holding element 9 and a spring abutment 36. A front end section 37 of spring abutment 36 borders open section 35 of recess 18 of holding element 9. In the closed position, spring abutment 36 contacts bulbous operating section 16a of eccentric disk 16 (see FIG. 11).
(29) FIGS. 17, 18 show the arrangement of boot 2 on cross-country binding 1 in the non-rotated state of rotating handle 14. Due to a slanted placement of boot 2 in the direction of arrow 38, a force is applied in the vertical direction according to arrow 39 on a slanted surface of hook-shaped projections 11, so that holding element 9 is pressed forward against the effect of spring 34 (arrow 40). In this position, hinge axis 2a of boot 2 may snap into receptacle 8 of holding device 7. The stored spring energy of spring 34 presses holding element 9 back in direction of arrow 41 into the closed position. Advantageously, a stepping into binding 1 is thus possible without actuating the rotating handle.
