EP2363248A2 - Hand support for mounting on a shaft of an ice pick - Google Patents

Abstract

The hand support (18) has a clamping unit, by which the hand support is brought in clamping connection with the shaft (12). The clamping unit has an operating lever in order to operate the clamping unit for establishing and releasing the clamping connection. A part of a supporting projection is formed by the operating lever. An independent claim is also included for a mountaineer pickaxe with a hoe.

Description

The present invention relates to a hand rest for mounting on a shaft of a mountaineering pole, wherein the hand rest forms a support projection protruding from the shaft for supporting a hand of a user, and wherein the hand rest has a clamping means, by means of which the hand rest can be brought into clamping connection with the shaft, and wherein the clamping means comprises an actuating lever for actuating the clamping means for making and releasing the clamping connection.

Mountaineering pimples with a shaft and a shaft located at an upper end of the shaft are among the most important equipment for alpine mountaineering as support for walking and climbing on rock, snow or ice, as a belay device or as a tool for beating kicks or handholds. The mountaineering pimple is generally gripped on the shaft and driven into the ground with the forwardly extending line, with one or a blade, also located at the upper end of the shaft, or with a shaft tip disposed at the lower end of the shaft.

In order to provide additional support for the hand encompassing the shaft or / and to provide further possibilities for gripping the mountaineering peck and / or to provide further possibilities for grasping the mountaineering peck, one of the FR 2 918 898 A known as Eispickel trained mountaineering pick a hand rest, which is clamped by a clamp around the outer circumference of the shaft and a clamp clamped around the outer circumference of the shaft and minen supporting projection for supporting the hand forms in the forward direction (in the direction of the Haue) from Shank protrudes. To the position of the hand rest along the shaft according to the individual needs of the mountaineer To adjust, the well-known hand support further comprises an actuating lever, with which the clamp of the climber manually between a release position in which the hand rest is slidable along the shaft, and a clamping position in which the hand rest is fixed to the shaft, can be adjusted.

Although the adjustable hand rest increases the functionality of the known ice pick, the ergonomics of the ice pick in the grip area are impaired by the actuating lever to be provided for this purpose. In particular, presses the operating lever and a storage of the actuating lever from the shaft rearwardly projecting portion of the clamp when gripping the shaft interfering with the palm of the mountaineer and impaired in this way the comfort and possibly even safety in the use of the ice pick.

It is an object of the present invention to provide an adjustable hand rest for a mountaineering pimple and a mountaineering pimple, which allow easy operation for adjusting the hand rest and at the same time allow a more comfortable or reliable gripping and holding the mountaineering peck.

This object is achieved according to a first aspect of the invention by a hand rest for mounting on a shaft of a mountaineering pick, wherein the hand rest forms a protruding from the shaft support projection for supporting a user's hand, wherein the hand rest has a clamping means by which the hand rest with the Shank can be brought into clamping connection, wherein the clamping means comprises an actuating lever to actuate the clamping means for producing and for releasing the clamping connection, and wherein at least a part of the supporting projection is formed by the actuating lever.

An important idea of the invention is therefore the actuating lever for producing or releasing the clamping connection of the clamping means in the area to arrange the support projection of the hand rest or even form the support projection entirely by the operating lever, so that the necessary for the operating lever and possibly for its support on the hand rest space can be used simultaneously as a support projection for the user's hand. Thus, a component and weight saving double function of the operating lever is achieved as an actuating element of the clamping means on the one hand and as a support projection or part of the support projection for the hand of the user on the other hand. At the same time, the operating lever can be arranged by the invention features at a position where it does not interfere with use in use, for example against a user's palm, so that a significant improvement in the holding comfort and the Griffergonomie and grip safety can be achieved.

In a preferred embodiment of the invention, the supporting projection is formed by the operating lever as well as by at least one further projecting portion (e.g., a clip projection to be described later) of the hand rest. In this way, at least a portion of the acting force can be absorbed by the at least one further projecting portion of the hand support during use of the mountaineering pick and in particular when exerting force on the hand rest, so that the clamping means is relieved.

In such an embodiment it can be provided that the actuating lever is supported in the clamping position from above on the at least one further projection portion. In particular, in the case of a pivotable actuating lever, a stable stop for the actuating lever can be provided in this way, which at the same time receives as part of the supporting projection the forces occurring during use of the mountaineering pick. Alternatively or additionally, it is preferred that the actuating lever is received in the clamping position in a recess of the projecting portion. Thus, the operation lever in the use state (clamping position) integrated in the projecting portion be, so that in total for the operating lever neither additional space nor additional material / weight must be planned and the operating lever is visually unobtrusive designed as part of the support projection.

In a further preferred embodiment of the invention, the clamping means comprises a clamp, which surrounds the shaft at least partially, preferably a substantially U-shaped or O-shaped clamp, which rotates at least one rear portion and the two lateral portions of the shaft. By means of such a clamp, the hand rest can be frictionally held by clamping or clamping the clamp against the shaft on the outer circumference of the shaft without special holding means would be provided on the shaft itself.

If the clamping means comprises a clamp, this clamp, with the exception of at most the area of the supporting projection, can circulate the shaft substantially along its circumference as a flat band or in the manner of a flat band, so that no protrusions or interruptions or the like outside the supporting protrusion affect the ergonomics and grip safety of the hand rest disturbing. A design of the clamp in the manner of a flat band corresponds to a design of the relevant clamp portion such that no protrusions or the like project disturbingly outwards in this section. A clip in the nature of a flat band could be formed except by a flat band, for example by a rope arrangement or by a grid.

In a preferred embodiment of a hand rest with a clamping means comprising a clamp is proposed that the support projection is formed by the actuating lever and by a clamp projection, wherein the clamp projection is fixed, in particular integrally connected to the clamp. In this way, part or all of the force acting on the hand rest by the hand can be absorbed by the clamp projection which is fixed, in particular integral (of uniform material), is connected to the clamp, so that a stable hand support is provided.

Such a clamp projection can be made particularly ergonomic in connection with the actuating lever when, in a clamping position of the clamping means, a surface of the actuating lever merges substantially continuously into a surface of the clamp projection. The ergonomic advantages are particularly useful in such a variant, when the transition between the surface of the actuating lever and the surface of the clamp projection is arranged in a particularly exposed in the hand of the mountaineer in contact surface portion of the support projection.

In a further preferred embodiment of the invention, the actuating lever may be pivotally mounted on the hand rest at a pivot point. Such a pivotal mounting opens technically simple ways to quickly and safely clamp the clamping means by means of a simple actuation movement with the shaft or to solve the clamp connection.

In particular, it is thought to store the operating lever in a shaft facing recess of an abovementioned clamp projection.

When the operating lever is pivotally mounted on the hand rest, the clamping means is preferably arranged such that the actuating lever extends in a clamping position of the clamping means from the pivot point along the support projection and is pivoted in a release position of the clamping means relative to the clamping position upwards. Such a variant provides in the clamping position an ergonomic combination of actuating lever and supporting projection and also makes use of the fact that the force acting on the hand support force by the user's hand mostly in the downward direction oriented, ie away from the haul and towards the opposite free tip of the shaft. Such a force action then presses the actuating lever always in the clamping position, so that the clamping means holds the hand support reliably fixed in use on the shaft. Accidental opening of the clamping means when supporting the user's hand on the support projection can be reliably avoided.

For the production of the clamping connection between the hand rest and the shaft, different, e.g. Known clamping mechanisms conceivable. For example, a clamp of the clamping means could be clamped to the shaft by means of a screw actuated by the actuating lever. However, a simple and quick way to make and solve the clamp connection provides the provision of a cam portion which is moved by the actuating lever. In particular, the cam portion could be formed on the circumference of an eccentrically mounted hub portion of the actuating lever, so that the actuating lever and cam portion may be formed by a simple and stable component.

According to a second aspect of the invention, for which independent protection is claimed, the above-mentioned object of the invention is achieved by a hand rest for mounting on a shaft of a mountaineering pick, the hand rest forming a support projection projecting from the shaft for supporting a hand of a user the hand rest has a clamping means by means of which the hand rest can be brought into clamping connection with the shaft, wherein the clamping means comprises a clamp, which surrounds the shaft at least partially, and wherein a friction element is arranged on a support projection opposite the rear portion of the clamp to get in contact with the shaft.

It has been found that a hand rest with such a friction element in the use state more reliable against slipping protected on the shaft of the mountaineering pick. A torque applied to the hand rest by the user's hand when the support projection is directed downwards (away from the haul) presses the rear portion of the clamp, and thus the friction element, against the surface of the shaft. In other words, clamps the clamp of the hand support under load against the shaft, wherein at a point of particularly high pressure force between the clamp and shaft, the friction element is arranged according to the second aspect of the invention. Thus, a particularly secure, non-positive grip can be achieved especially at high load on the hand rest, such as in a dangerous situation. The hand rest according to the second aspect of the invention acts as a self-locking element and therefore achieves very high holding forces with a simple structure.

In a preferred embodiment of the invention according to the second aspect, the friction element can be arranged on an inside of the clamp friction pad, so that the friction element can be easily produced and, if desired, attached to the clamp in a simple manner. In particular, an elastic mat (e.g., rubber) is considered which is placed on the inside of the clamp.

Preferably, a hand rest according to the second aspect of the invention additionally comprises at least one of the features of the first aspect of the invention in order to achieve the advantages and effects described above for the corresponding features. In particular, a clamp with a friction element of the second aspect of the invention is considered to be advantageous, which has a recess or interruption in the region of the support projection and otherwise rotates the shaft substantially along its circumference as a flat band or in the manner of a flat band, ie in particular in the rear portion of the clamp, in which the friction element is arranged, the shaft rotates without interruption. The friction element can then be effectively pressed by the circumferential clamp in the rear portion against the shaft become.

In a third aspect, the invention provides a mountaineering pimple comprising a shaft and a shaft disposed at an upper end of the shaft and equipped with a hand rest according to the first and / or the second aspect of the invention. Such a mountaineering pimple achieves the above-mentioned advantages and effects with regard to the improved functionality, the higher ergonomics and the increased safety when using the mountaineering pick, in particular under load and during continuous use of the mountaineering pick.

Preferably, the haunches of the mountaineering peg and the supporting projection of the hand rest project from the shaft in substantially the same direction, namely in a forward direction. If the climber holds the mountaineering pimple on the shaft in such a way that he can hammer the hewn forward into the ground, his fingers can rest on top of the support projection in order to transmit traction more comfortably and reliably.

Figur 1

eine Seitenansicht eines Eispickels gemäß einem Ausführungsbeispiel der vorliegenden Erfindung,

Figur 2

eine perspektivische Ansicht einer Handstütze des in Figur 1 gezeigten Eispickels in einer Lösestellung,

Figur 3

eine perspektivische Ansicht der Handstütze des in Figur 1 gezeigten Eispickels in einer Klemmstellung,

Figur 4

eine Schnittansicht eines Ausschnitts des in Figur 1 gezeigten Eispickels im Bereich der Handstütze in einer Lösestellung, und

Figur 5

eine Schnittansicht eines Ausschnitts des in Figur 1 gezeigten Eispickels im Bereich der Handstütze in einer Klemmstellung.

The invention will be explained in more detail below with reference to a preferred embodiment with reference to the accompanying drawings. Show it:

FIG. 1

a side view of an ice pick according to an embodiment of the present invention,

FIG. 2

a perspective view of a hand rest of the in FIG. 1 shown Eispickels in a release position,

FIG. 3

a perspective view of the hand rest of in FIG. 1 shown Eispickels in a clamping position,

FIG. 4

a sectional view of a section of in FIG. 1 shown Ice pick in the area of the hand rest in a release position, and

FIG. 5

a sectional view of a section of in FIG. 1 shown ice pick in the area of the hand rest in a clamping position.

An in FIG. 1 shown ice ax 10 according to the embodiment of the invention comprises a shaft 12, a arranged at the upper end of the shaft 12 Haue 14, a arranged at the lower end of the shaft 12 tip 16 and a shank between the shaft 14 and tip 16 arranged hand rest 18. The shaft 12 may be formed from a hollow metal tube, in particular a light metal with sufficient stability, and may have a curvature 20, at which a portion of the shaft 12 nearer to the shaft 14 at an angle in a forward direction V of the shaft defined by the direction of extension of the shaft 14 Ice pick 10 is tilted.

The haul 14 may be fastened or attachable directly to the upper end of the shaft 12, or may alternatively be mounted or mountable on a base body 22 attached to the upper end of the shaft 12. At the upper end of the shaft 12 may also extend in a direction opposite to the forward direction V reverse direction R a blade portion 24 or alternatively a non-illustrated hammer portion.

With reference to FIGS. 2 to 5 the hand rest 18 of the ice pick 10 will be explained in more detail below. The hand rest 18 comprises a clamp 26, which rotates the shaft 12 in its two lateral sections and in the rear portion as a closed, flat band, and merges at the front of the shaft 12 in a clamp projection 30 extending from the shaft 12 substantially in Forward direction V extends. An upwardly open recess 31 extends in the forward direction V along the clamp projection 30 to the shaft 12, so that the clamp projection 30 has the shape of a groove, formed on both sides of the recess 31 extending clamp wings 30 a, 30 b and a clamp projection bottom portion 30c forming the bottom of the recess 31, the clamp wings 30a, 30b interconnecting with each other.

Between the clamp wings 30a, 30b extends substantially orthogonal to the axis of the shaft 12 and substantially orthogonal to the extension direction of the clamp projection 30 has an axis 32 to which an actuating lever 34 is pivotally mounted, so that the actuating lever 34 is mounted in the recess 31.

The shape and arrangement of the operating lever 34 and the clamp projection 30 are coordinated so that the actuating lever 34, when it is pivoted downwardly so that it extends substantially in the direction of the clamp projection 30, can be supported on the clamp projection 30, so that the Clamp projection 30, as a stop limits a downward pivotal movement of the actuating lever 34. In the embodiment, the clamp projection bottom portion 30c serves as a stop for a bottom 35 of the actuating lever 34. In addition, the actuating lever 34 on either side of its central axis each have a stepped portion 36a, 36b, on which first stop surfaces 38a, 38b are formed. In the downwardly pivoted position of the actuating lever 34 (FIG. Figures 3 and 5 ) are then the first abutment surfaces 38a, 38b on second abutment surfaces 40a, 40b, which are respectively formed on front upper portions of the clamp wings 30a, 30b.

Due to the arrangement selected in the embodiment, the operating lever 34, when it abuts against the stops 30c, 40a, 40b, fitting fits into the recess 31 so that it is substantially integrated in the clamp projection 30 and together with the clamp projection 30 for the function of a hand rest has suitable overall contour.

In a hub portion 42 of the operating lever 34, in which this By means of the axis 32 pivotally mounted in the recess 31 of the clamp projection 30 on the clamp 26, the actuating lever 34 has a cam surface 44, which verläüft the shaft 12 adjacent and is shaped so that they are in a downward pivotal movement of the actuating lever 34th (towards the in Figures 3 and 5 shown clamping position) on the shaft 12 moves or stronger against the shaft 12 and presses upon an upward pivotal movement of the actuating lever 34 (in the direction of in FIG. 2 shown release position) of the shaft 12 and the pressure force on the shaft 12 is reduced. In the embodiment shown, the clamp projection bottom portion 30c below the axis 32 has an opening 45 into which the cam surface 44 during an upward movement of the actuating lever 34 to the release position, ie a downward movement of the cam surface 44, can dip.

By pivoting movement of the operating lever 34 thus the hand rest 18 can be adjusted manually, between the in FIG. 3 shown clamping position in which the hand rest 18 clamped on the shaft 12 and can not be moved along the shaft 12, and the in FIG. 2 shown release position in which the clamping connection is released and the hand rest 18 can be moved to adjust the position of the hand rest 18 along the shaft 12.

In a state of use of the ice pick 10, the operating lever 34 is pivoted to the clamping position and extends in the recess 31 between the clamp wings 30a, 30b and adjacent thereto in the forward direction V. In this state of use, the clamp projection 30 and the actuating lever 34 together form a support projection 46 of the hand rest 18 to support a user's hand.

Preferably, the outer contours of the clamp wings 30a, 30b and the clamp projection 30 and the actuating lever 34 are so each other matched, that in the state of use at least in the area of a support surface 48, against which the user's hand, a surface 50 (ie a facing surface 14) of the actuating lever 34 substantially continuously into adjoining surfaces 52 of the respective clamp wing 30a and 30b passes. The pivoted into the clamping position actuating lever 34 thus fits between the clamp wings 30a, 30b fitting in the clamp projection 30 and forms with this a smooth and ergonomically shaped support projection 46th

As in the FIGS. 2 to 5 can recognize a hand rest of the invention in a support projection 46 opposite the rear portion 56 of the clamp 26, a friction element 54 which comes into abutment with a rear portion of the shaft 12. In the exemplary embodiment, the friction element 54 is a mat formed, for example, of rubber or another material having an increased coefficient of friction, which is arranged (eg glued) on an inner side of the rear portion 56 of the clamp 26.

If, in the state of use of the ice pick 10, a downward force is exerted on the support projection 46 by the user's hand, the torque acting in the hand support 18 presses the friction element 54 about an axis parallel to the axis 32 In other words, the clamp 26 is tilted on the shaft 12 in addition to the clamping action of the cam portion 42, wherein the friction element 54 is arranged straight in a portion in which the clamp 26 is particularly strongly pressed against the shaft 12. With a load on the hand rest 18 in the state of use can thus be prevented with particular reliability and reliability slipping of the hand rest along the shaft 12.

Claims (15)

Hand support (18) for mounting on a shaft (12) of a mountaineering pick (10),
wherein the hand rest (18) forms a support projection (46) projecting from the shaft (12) for supporting a hand of a user, and wherein the hand rest (18) comprises a clamping means (26) by means of which the hand rest (18) engages with the shaft (12). 12) can be brought into clamping connection, and
the clamping means (26) having an actuating lever (34) for actuating the clamping means (26) for making and releasing the clamping connection,
characterized in that at least part of the supporting projection (46) is formed by the operating lever (34). Handrest (18) according to claim 1, characterized in that the support projection (46) by the actuating lever (34) and at least one projection portion (30) of the hand rest (18) is formed, wherein the actuating lever (34) in a clamping position of supported on top of the projection portion (30). Handrest (18) according to claim 1 or claim 2, characterized in that the support projection (46) by the actuating lever (34) and by at least one projection portion (30) of the hand rest (18) is formed, wherein the actuating lever (34) in one Clamping position in a recess (31) of the projecting portion (30) is arranged. Hand rest (18) according to claim 2 or claim 3, characterized in that in a clamping position of the clamping means (26), a surface of the actuating lever (34) merges substantially continuously into a surface of the projection portion (30). Hand rest (18) according to one of the preceding claims, characterized in that the clamping means (26) comprises a clamp, which at least partially surrounds the shaft (12). Hand rest (18) according to claim 5, characterized in that the clamp (26) rotates the shaft (12) substantially along its circumference as a flat band or in the manner of a flat band, except at most the region of the support projection (46). A hand rest (18) according to claim 5 or claim 6, characterized in that the support projection (46) is formed by the operating lever (34) and by a clamp projection (30), the clamp projection (30) fixed, in particular integral, with the clamp (26) is connected. Hand rest (18) according to one of the preceding claims, characterized in that the actuating lever (34) at a pivot point (32) is pivotally mounted on the hand rest (18). Handrest (18) according to claim 8, characterized in that the actuating lever (34) extends in a clamping position of the clamping means (26) from the pivot point (32) along the support projection (46) and in a release position of the clamping means (26) relative to the Clamping position is pivoted on the housing side. Hand rest (18) according to one of the preceding claims, characterized in that the actuating lever (34) for producing and releasing the clamping connection moves a cam portion (44). Handrest (18) according to claim 10, characterized in that the cam portion (44) on the circumference of an eccentrically mounted hub portion (42) of the actuating lever (34) is formed. Hand support (18) for mounting on a shaft (12) of a mountaineering pick (10), in particular a hand rest (18) according to one of the preceding claims, wherein the hand support (18) has a support projection (46) protruding from the shaft (12) for supporting a hand of a user, and wherein the hand rest (18) comprises a clamping means (26) by means of which the hand rest (18) can be brought into clamping connection with the shaft (12), and wherein the clamping means (26) comprises a clamp, which the shaft (12) at least partially surrounds,
characterized in that a friction member (54) is disposed on a rear portion (56) of the bracket (26) opposite the support projection (46) to come into contact with the shaft (12). Hand rest (18) according to claim 12, characterized in that the friction element (54) is arranged on an inner side of the clamp (26) Reibauflage, in particular an elastic mat. Mountaineering pimple (10), comprising a shaft (12), a shaft (14) disposed at an upper end of the shaft (12), and a hand rest (18) according to any one of the preceding claims attached to the shaft (12). Mountaineering pimple (10) according to claim 14, characterized in that the shaft (14) and the supporting projection (46) project from the shaft (12) in substantially the same direction, in the forward direction (V).

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