FR2840537A1 - SKI STICK - Google Patents

Abstract

A ski pole comprises a tube (6), a handle (4) at the upper end (8) of the tube (6) and a tip (7) at the lower end (9) of the tube (6), the handle (4) having a first gripping zone (12), more particularly intended for positioning the phalanges of a skier's hand, and a second gripping zone (13), more particularly intended for positioning the palm of the skier's hand, the first gripping zone (12) defining the front (F) of the stick (1) and the second gripping zone (13) defining the rear (R) of the stick (1), the tube (6) having a substantially circular profile on an upper portion (17) below the upper end (8) of the tube (6) and on a lower portion (18) above the lower end (9). ) of the tube (6), and a profile gradually varying on a central portion (19) between the upper portion (17) and the port lower ion (18). The central portion (19) of the tube (6) has a substantially polygon shaped profile having a single side (28) facing forward (F) of the stick (1).

Description

s the length, to the width of the axial piece (1).

SKI STICK

  The present invention relates to a stick, more particularly intended for the practice of ski track. The batons currently exist on the wind market made of lightweight materials, such as aluminum alloys or resins reinforced by glass or carbon fibers. If most of the sticks intended for the general public have a tube of circular section, the sticks intended for competition have a tube whose cross section varies between the handle and the tip. The selected sections are no longer round. State of the art It is known from WO-93 / 11,839 that sticks whose tube

  includes an internal reinforcement and keeps an ovode section.

  US-5,580,050 discloses a cane for use indoors wherein a portion of the tube has an oval or elliptical section for gripping. It is known from US-5,611,571 and US-5,505,492 ski poles comprising a tube whose section varies longitudinally on defined portions. The tube has a circular upper portion, a drop-shaped central portion of water and a circular lower portion. These wind sticks present

  as having a better resistance and being aerodynamic.

  Also known from SU-1.782.173 is a ski pole comprising a tube, a handle at the upper end of the tube and a tip at the lower end of the tube. The tube has a substantially circular profile on a lower portion located above the lower end of the tube, as well as on an upper portion located above the upper end of the tube. The tube has a substantially triangular profile gradually varying on a central portion located between the upper portion and the lower portion. The tip of the triangle

is oriented towards the front of the stick.

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  However, these early art sticks present a major lack of lack

  ergonomics, when the skier is in the speed search position.

  A first problem that the invention proposes to solve is to obtain a ski pole which is particularly resistant to buckling in all directions situated in a plane perpendicular to the longitudinal axis of the tube. A second problem lies in the realization of a stick that is resistant to compression in the direction of the longitudinal axis of the tube. A third problem is to provide a ski pole that is particularly ergonomic and adapted to be positioned directly against the body of the skier. A fourth is to present visibly a

  inscription that is positioned on a ski pole.

  A ski pole comprises a tube, a handle at the upper end of the tube and a tip at the lower end of the tube. The handle has a first gripping zone, more particularly intended for positioning the phalanges of a hand of a skier, and a second gripping zone, more particularly intended for positioning the palm of the skier's hand. The first gripping zone of the grip defines the front of the stick and the second gripping zone of the grip defines the rear of the stick. The tube has a substantially circular profile on a higher portion located below the upper end of the tube and on a lower portion located above the lower exkemite tube, and a profile gradually varying on a central portion located between the upper portion and the lower portion. According to a first aspect of the invention, the central portion of the tube has a substantially polygon-shaped profile having a single side pointing towards

['before the stick.

  In other words, the side of the polygon forms a substantially planar zone which is oriented towards the front of the baton, that is to say towards the front of the phalanges of the skier's fingers, and consequently towards the front. compared to the face and bust of the skier. ....

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  The first advantage of this substantially flat surface arrangement is that the substantially flat area of the stick tube will be completely slotted against the body of the skier under his armpits, when it naturally rotates his wrists to bring both hands to the level of his shoulders. The position of the stick is thus much more relaxing for the skier. This position of the stick is obtained almost instinctively, which saves time during a descent. This flat surface at the front of the baton even provides guidance for the optimal placement of the skier's body for

aerodynamics research.

  The second advantage is that the side facing the front of the stick may have a space to receive a registration, especially the manufacturer's mark or logo or advertising or other. This inscription will be clearly visible when the

  skier leans on his sticks at the start of the race.

  In order to improve the resistance of the stick to buckling in the direction from front to back, that is to say according to the depth, the distance between the front of the stick and the back of the stick at the level of the profile of the central portion of the tube may be greater than the diameter of the substantially circular profile of the upper portion and / or substantially circular profile of the lower portion of the tube. Preferably, and in order to improve the resistance of the stick to the buckling in all directions located in a plane perpendicular to the longitudinal axis of the tube, as well as the compressive strength, the dimensions of the profile of the central portion of the tube can Be chosen in such a way that this same profile can encompass the substantially circular profile of the upper portion and / or the substantially circular profile of the portion

bottom of the tube.

  In order to obtain a particularly aesthetic stick, only one or more of the polygon sides of the profile can be advantageously weakly arched. By faintly arque means an arc portion whose curvature is between a totally flat surface and a curvature corresponding to the diameter of the substantially circular profile of the upper portion and the lower portion. For aesthetic reasons, it will be chosen as an example, the side oriented towards the front of the stick being able to

Be weakly arced.

  For questions of aerodynamism of the stick and also for an absence

  of salient angles, one or more of the vertices of the polygon may be rounded.

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  In a particularly advantageous way and for simplified manufacture, the polygon can be a triangle. The triangle may be for example an isosceles triangle. The lateral dimensions of the isosceles triangle may be longer than the

  length of the side orients towards the front of the stick.

  Depending on the type of stick desired for the descent, or the giant or the supergeant, the tube may present on both sides of the central portion of the tube two points of inflection. These two points of inflection are placed in a plane

  perpendicular to the side facing the front of the stick.

Sombrary description of the fibures

  The invention will be well understood and its various advantages and different

  characteristics will stand out better in the following description, in the example not

  limiting embodiment, with reference to the accompanying schematic drawings, in which: - Figure 1 shows a perspective view of the underside of a slalom stick; - Figure 2 shows a perspective view from below of a stick of giant or super-giant; - Figure 3 shows a perspective view of the bottom of a downhill stick; - Figure 4 shows a side view of the slalom stick conforming to Figure 1; - Figure 5 shows a side view of the stick of giant or super-giant according to Figure 2; Figure 6 shows a side view of the downcomer according to Figure 3; - Figure 7 shows an enlarged cross-sectional view along the plane VII - VII of the sticks of Figures 4, 5 and 6; - Figure 8 shows an enlarged view in cross section along the plane VIII - VIII of the sticks of Figures 4, 5 and 6; - Figure 9 shows an enlarged view in cross section along the plane IX - IX of the sticks of Figures 4, 5 and 6; - Figure 10 shows an enlarged cross-sectional view along the X-X plane of the sticks of Figures 4, 5 and 6; and FIG. 11 represents an enlarged schematic view in cross-section of the

  central portion of the batons plate against the body of the skier.

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  Detailed description of the invention

  A stick adapted to the slalom (1) (see Figures 1 and 4), a stick adapted to the giant or super-giant (2) (see Figures 2 and 5) and a stick adapted to the descent (3) (see Figures 3 and 6) each comprise a handle (4), a tube (6) and a tip (7). The handle (4) is threaded to the upper end (8) of the tube (6). The tip is housed or attached to the lower end (9) of the tube (6). A washer (11) is provided at the lower end (9) of the tube (6). The proposed lengths available for

  different types of sticks (1, 2 and 3) range between 1.10 m and 1.40 m.

  The handle (4) is formed by a first gripping zone (12) located at the front of the handle (4). This first grip zone (12) has a series of four hollows and bumps for placing the four fingers of the skier's hand. The handle (4) is formed by a second gripping zone (13) located at the rear of the handle (4). This second gripping zone (13) is substantially smooth and is intended for placing the palm of the skier's hand. The first gripping area (12) of the handle (4) defines the forward direction (arrow F) of the stick (1, 2 and 3) and thus the front of the tube assembly (6). The second gripping zone (13) defines the rear direction (arrow R) of the stick (1, 2 and 3) and thus the rear of the whole of the

tube (6).

  The tube (6) of the slalom stick (1) is rectilinear. The tube (6) of the upper or upper stick (2) and the down stick (3) comprise an upper inflection point (14) and a lower inflection point (16) curving the tube (6) in a plane substantially perpendicular to the plane defined by the forward direction (F) and the rear direction (R). These two points of inflection (14 and 16) give the sticks of giant,

  super-giant and descent (2 and 3) their well-known feature form.

  The tube (6) is composed of: - an upper portion (17) located below the handle (4) and under the upper end (8), that is substantially between the cutting plane XX (FIGS. a 6) and the upper end (8), - by a lower portion (18) located above the washer (11) and above the lower end (9), that is to say between this lower end (9) and the sectional plane VII - VII (Figures 4 to 6), and by

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  a central portion (19) situated between the upper portion (17) and the lower portion (18), that is to say between the cutting plane VIII-VIII and the section plane

IX - IX (Figures 4 to 6).

  For the tube (6) of the stick of giant or super-giant (2) and the stick of descent (3), the central portion (19) can be defined as being between the two points of inflection

(14 and 16).

  The upper portion (17) of the tube (6) has a profile (21) which is substantially circular (see Figure 10). For example, the diameter of the upper portion (17) is constant, and for example substantially equal to 14 mm. The length of the upper portion (17) is. for example, substantially equal to 400 mm for a baton of 1.40 m and is shortened for smaller sticks. The lower portion (18) of the tube (6) has a profile (22) which is substantially circular (see Figure 7). For example, the diameter of the lower portion (18) is constant, for example equal to 9.8 mm. The length of the lower portion (18) is. for example, substantially equal to

  1S 200 mm for a baton of 1.40 m and is shortened for sticks of smaller size.

  The central portion (19) of the tube (6) has a profile (23) which is polygonal.

  With a polygon, the surface is thus increased relative to the circular profile, which allows to increase the compressive strength. For a slalom stick (1), the length of the central portion (19) is. for example, substantially equal to SO mm. For a stick of giant and super-giant (2), the length of the central portion (19) is. for example, substantially equal to 380 mm. For a downhill stick (3), the length of the

  central portion {19) is. for example, substantially equal to SOO mm.

  Between the central portion (19) and the upper portion (17), that is substantially between the IX-IX section plane and the X-X section plane (Figures 4, S and 6), the profile varies gradually from the polygon profile (23) to the circle profile (21) on an upper intermediate portion. Between the lower portion (18) and the central portion (19), that is to say substantially between the section plane VII - VII and the section plane VIII - VIII (Figures 4, 5 and 6), the profile varies gradually from the circle profile (22) to the polygon profile (23) on a lower intermediate portion. The length of the upper intermediate portion between the central portion (19) and the upper portion (17) is. for example, substantially between lSO mm and 200 mm. The length of the lower intermediate portion between the lower portion

  (18) and the central portion (19) is. for example, substantially equal to SOO mm.

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  The polygonal profile (23) chosen here is triangular with three peaks (24, 26 and 27)

  and three rectilinear dimensions (28, 29 and 31) constitute the three flat faces of the profile (23).

  According to the present invention, one of the plane dimensions (28) of the triangle (23) is oriented forward (arrow F) of the stick (1, 2 and 3). This front plane dimension (28) thus constitutes a front-oriented space (F) which receives an inscription (32) particularly visible to all. This flat space and inscription (32) overflow to a certain extent over the upper intermediate portion and the lower intermediate portion. Despite their transition profile, the upper intermediate portion and the lower intermediate portion further include a profile with an upwardly facing (F) edge. The

  length of space is. for example, substantially between 200 mm and 350 mm.

  During the downhill or the giant or super-giant or slalom, this front (28) of the

  tube (6) is very often plate against the body (33) of the skier.

  In an advantageous embodiment, this triangle (23) is an isosceles triangle.

  The lateral dimension (29) has a length substantially equal to the lateral dimension (31), these

  two lateral dimensions (29 and 31) having a length greater than that of the front side (28).

  The vertices (24, 26 and 27) are slightly rounded.

  The distance (H) between the front side (28) and the somrnet (27) oriented towards the rear (R) of the profile (23) is greater than the diameter (D) of the substantially circular profile (21) of the upper portion. (17) of the tube (6) and the diameter of the substantially circular profile (22) of the lower portion (18) of the tube (6). By way of example, the largest diameter (D) is that of the upper portion (17) and is equal to 14 mm and the distance (H) is equal to 18 mm. With such dimensions, greater resistance to buckling

  is obtained in the forward (F) - rear (R) direction.

  The distance (L) between the two vertices (24 and 26) delimiting the front plane (28) as well as the distance (H) wind chosen so that the diameter (D) of the substantially circular profile (21) the upper portion (17) of the tube (6) is lower and \ 3

  englobb (see Figure 11) in the triangular profile (23).

  In an alternative embodiment, the front side (28) is substantially arque, in 2 proportions quoted "little marked or weak". The curvature of the arc portion is at least equal to 0, which corresponds to the flat rectilinear dimension (34). This curvature of the arc portion is at most equal to the semicircle having the value given for: <diameter (D) of the substantially circular profile (21) the upper portion (17) of the tube 2 '(6)

  The present invention is not limited to the embodiments described and

  illustrious. Numerous modifications can be made, though not out of

  framework defined by the scope of the set of claims.

  The sticks concerned may be telescopic sticks, batons for snowshoeing, cross-country skiing, cross-country skiing, walking carbines, etc.

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Claims (11)

  1. Ski baton comprising a tube (6), a handle (4) at the upper end (8) of the tube (6) and a tip (7) at the lower end (9) of the tube (6), the handle (4) presenting a first gripping zone (12), more particularly intended for positioning the phalanges of a skier's hand, and a second gripping zone (13), more particularly intended for positioning the palm of the skier, the hand of the skier, the first gripping zone (12) defining ['before (F) of the stick (1, 2, 3) and the second gripping zone (13) defining the rear (R) of the stick (1, 2, 3), the tube (6) having a substantially circular profile on an upper portion (17) located below the upper end (8) of the tube (6) and on a lower portion (18) located above of the lower end (9) of the tube (6), as well as a gradually varying profile on a central portion (19) located between the upper portion (17) and the lower portion (18), characterizes in that the central portion (19) of the tube (6) has a substantially polygonal profile (23) having a single side (28) oriente   forward (F) of the stick (1, 2, 3).   2. Baton according to claim 1, characterized in that the distance (H) enke ['before (F) of the baton (1, 2, 3) and the rear (R) of the baton (1, 2, 3) to level of the profile (23) of the central portion (19) of the tube (6) is greater than the diarnetre (D) of substantially circular profiles (21, 22) of the upper portion (17) of the tube (6) and / or   the lower portion (18) of the tube (6).   3. Baton according to claim 1 or 2, characterized in that the dimensions (H. L) of the profile (23) of the central portion (19) of the tube (6) wind such that it can include substantially circular profiles ( 21, 22) of the upper portion:   (17) of the tube (6) and / or the lower portion (18) of the tube (6). :   4. Baton according to one of the preceding claims, characterized in that a senl or   several of the dimensions (28) of the polygon of the profile (23) are weakly arcing.   . .............., ................. .................. .............   lo 2840537 5. Baton according to claim 4, characterized in that the dimension (28) directs towards   The front (F) of the baton (1, 2, 3) is weakly arched.   Baton according to one of the preceding claims, characterized in that one or more   vertices (24, 26, 27) of the rounded wind polygon.   Baton according to one of the preceding claims, characterized in that the   polygon of the profile (23) is a triangle.   8. Baton according to claim 7, characterized in that the triangle is a triangle socele. 9. Stick according to claim 8, characterized in that the lateral dimensions (29, 311 of the isocele triangle have a length greater than the length of the dimension (28)   orients towards the front (F) of the stick (1, 2, 3).   10. Baton according to one of the preceding claims, characterized in that the tube (6)   has on either side of its central portion (19) two points of inflection (14,16) placed in a plane substantially perpendicular to the side (28) oriente   towards ['before (F) of the stick (1, 2, 3).   11. Baton according to one of the preceding claims, characterized in that the rating   (28) facing the front (F) of the stick (1, 2, 3) presents a space for a receive an inscription (32). Depositor: SKIS ROSSIGNOL S.A.   Agent: Cabinet LAURENT & CHARRAS