Heel unit for a ski touring binding, and ski touring binding

Abstract

The present disclosure relates to a heel unit for a touring ski binding. In some embodiments, the heel unit, which may include a ski brake lock, may be moved into an entry position, an intermediate position, and a climbing position. In some embodiments, the ski brake lock may include a linearly displaceable, spring-loaded actuating rod connected to the ski brake and a slotted guide located in a heel clamp. The slotted guide may include a locking element aligned along the vertical axis of rotation of the holding body, rotating with the holding body and moving along the axis of rotation, spring-loaded in the direction of the ski plane.

What is claimed is: 
     
         1 . A heel unit for a touring ski binding, wherein the heel unit can be moved into an entry position, an intermediate position and a climbing position and wherein the heel unit comprises:
 a ski brake which can be moved into an active position and an inactive position,   a heel clamp with a rotatable holding body for holding a ski boot, wherein the holding body has a vertical axis of rotation, and   a ski brake lock,
 wherein the heel unit in the active position of the ski brake can be moved into the entry position and into the intermediate position by pivoting the holding body, 
 wherein in the intermediate position of the heel unit, by actuating the ski brake, the ski brake is moved from the active position to the inactive position and thus the heel unit is moved from the intermediate position to the climbing position and 
 wherein in the climbing position of the heel unit, the ski brake is moved from the inactive position to the active position by rotating the holding body and thus the heel unit is moved to the entry position, 
 wherein 
 the ski brake lock comprises a linearly displaceable, spring-loaded actuating rod connected to the ski brake and a slotted guide located in the heel clamp, 
 wherein the slotted guide comprises a locking element aligned along the vertical axis of rotation of the holding body, rotating with the holding body and moving along the axis of rotation, spring-loaded in the direction of the ski plane, 
 wherein the locking element assumes a release position in the entry position of the heel unit, in which the ski brake remains in the active position when actuated, and 
 wherein the locking element assumes a locking position in the intermediate position of the heel unit, in which, when the ski brake is actuated, the actuating rod is brought into engagement with the locking element against its spring loading and against the spring loading of the locking element, so that the ski brake remains in the inactive position and the heel unit is in the climbing position, and 
 wherein when the heel unit moves from the climbing position to the entry position, the locking element assumes the release position, whereby the actuating rod and the locking element are disengaged and the actuating rod is pushed back or retracted by its spring loading, so that the ski brake assumes the active position. 
   
     
     
         2 . The heel unit according to  claim 1 , wherein the actuating rod is spring-loaded in the longitudinal direction of the ski and in the direction of the ski tip. 
     
     
         3 . The heel unit according to  claim 1 , wherein the actuating rod is a push rod spring-loaded by means of a prestressed compression spring or a pull rod spring-loaded by means of a torsion spring. 
     
     
         4 . The heel unit according to  claim 3 , wherein the push rod and the compression spring belong to a pre-tensioning device which pre-tensions the ski brake into the active position or that the torsion spring forms a pre-tensioning device which pre-tensions the ski brake into the active position. 
     
     
         5 . The heel unit according to  claim 3 , wherein the actuating rod is a push rod which has a particular annular support projection located in its interior, on which the compression spring is supported. 
     
     
         6 . The heel unit according to  claim 1 , wherein the locking element and the actuating rod each have an inclined sliding surface which are aligned parallel to one another when the locking element is in the locking position and meet one another when the heel unit moves from the intermediate position to the climbing position. 
     
     
         7 . The heel unit according to  claim 6 , wherein the actuating rod has a locking projection which is in particular triangular in cross-section, on which the sliding surface is formed and via which the actuating rod can be made to engage with the locking element. 
     
     
         8 . The heel unit according to  claim 6 , wherein the sliding surface of the locking element is formed at the one end of the locking element. 
     
     
         9 . The heel unit according to  claim 1 , wherein the slotted guide has a guide track which runs in a ring-shaped manner in plan view and has two diametrically opposite, lowest points and two diametrically opposite, highest points, and wherein the locking element has two diametrically opposite control projections guided on the guide track. 
     
     
         10 . The heel unit according to  claim 1 , wherein the holding body is rotatable about the vertical axis of rotation via a combined axial-radial bearing formed in the heel clamp, which comprises a pressing device, wherein by rotating the holding body it can be moved into a first position and into a second position, wherein the pressing device holds the holding body in the respective position and wherein the locking element is located in a through hole formed in the region of the axial-radial bearing and running along the vertical axis of rotation, wherein when the holding body is in the first position, the locking element is in the locking position and, when the holding body is in the second position, the locking element is in the release position and wherein a part of the slotted guide, in particular the guide track, is located in the through hole. 
     
     
         11 . The heel unit according to  claim 10 , wherein the axial-radial bearing and the pressing device comprise a common, linearly displaceable, spring-loaded slider and the axial-radial bearing further comprises a tower-shaped bearing part, wherein the slider and the tower-shaped bearing part interact in such a way that the holding body is rotatably mounted on the tower-shaped bearing part. 
     
     
         12 . The heel unit according to  claim 1 , wherein the heel clamp comprises a guide plate which has a plate-shaped base part with a recess formed on the underside and running in the longitudinal direction of the ski, in which the actuating rod is guided, wherein the actuating rod preferably has two lateral, web-shaped guide projections running parallel to the ski plane, which are guided on web-shaped support projections running parallel to one another, which protrude into the recess formed on the underside of the base part. 
     
     
         13 . The heel unit according to  claim 11 , wherein the tower-shaped bearing part is a component of the guide plate and is located on the base part of the guide plate, wherein the through hole in which the locking element is located passes through the tower-shaped bearing part and the plate-shaped base part. 
     
     
         14 . The heel unit according to  claim 1 , wherein the actuating rod has a cross-shaped receptacle in which a brake support bolt of a brake support of the ski brake is mounted in a manner pivotable about the brake support bolt. 
     
     
         15 . The heel unit according to  claim 1 , wherein the holding body has a housing with a receptacle, which is designed in particular as a blind hole and is preferably elongated, in which the locking element is received in a manner secured against twisting, wherein the locking element in particular has a locking element end section corresponding to the receptacle and flattened on opposite sides parallel to one another. 
     
     
         16 . A touring ski binding with a heel unit according to  claim 1 .