Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
  • A63C11/00—Accessories for skiing or snowboarding
  • A63C11/04—Accessories for skiing or snowboarding for treating skis or snowboards
  • A63C11/06—Edge-sharpeners
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B24—GRINDING; POLISHING
  • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
  • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
  • B24B3/006—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools for edges of skis, snowboards or the like

Definitions

• the invention relates to a portable device for sharpening the edges of a ski, each edge having a lower face bordering the flat of the ski and a side face bordering its edge, device comprising a frame having: - first means of support in a lateral direction and intended to be applied against the edge, and second support means in a transverse direction and intended to be applied against the flat, - and fixing means of a machining assembly comprising a abrasive tool by rotation and an abrasive tool driving motor, said fixing means allowing a translation of the machining assembly in a first direction of adjustment included in the lateral-transverse plane and coinciding with the axis of rotation of the abrasive tool.
• a square is a suitable steel rod that borders the sole of a ski or any other means of gliding on snow, such as boards, better known by the English name of snowboard.
• the document CH661876 describes a portable device for sharpening a edge, which allows machining the lateral and lower sides of the edge by successively passing the device along the entire length of the edge.
• the device comprises a machining assembly provided with a tool abrasive rotation and a drive motor of the tool, and a frame carrying the machining assembly and equipped with positioning means on the ski.
• the positioning means include first and second support means in two perpendicular directions intended to bear respectively on the edge and on the flat of the ski.
• the chassis is such that the only possible settings are that of the angle of attack of the abrasive tool and that of the depth of pass. This latter adjustment results from a possibility of translation between the machining assembly and the frame in a fixed direction of adjustment relative to the directions of the support means.
• the transition from the machining operation of the lower face to the machining operation of the side face, or vice versa, is practiced by complete reversal of the device, chassis included.
• Such a portable device does not make it possible to overcome the risk of machining the plastic material of the ski constituting the edge or the flat.
• it requires a doubling of the support means: first and second support means for machining the lower face, and first and second support means for machining the side face.
• the passage of the machining operation from one face of the edge to the machining operation of the other face involves a loss of positioning and risks of imprecision of the sharpening obtained .
• the object of the invention is to provide a portable device for sharpening the edges of a ski that is simple, and that allows to machine successively the two sides of a square without risk of inaccuracy of sharpening obtained, while allowing to overcome the risk of machining the plastic of the ski.
• the device according to the invention is remarkable in that the chassis consists of a carriage provided with first and second support means, and a support comprising said fixing means and mounted on the carriage by connecting means having :
• first means allowing a swing of 90 degrees of the support along a pivot axis oriented in a longitudinal direction of the device perpendicular to the lateral-transverse plane, between a first machining position of the lateral face and a second machining position of the lower face
• second means allowing a translation of the support in a second direction of adjustment included in the lateral-transverse plane and perpendicular to the first direction of adjustment.
• the tilting of the support, and therefore of the machining assembly by means of the fastening means allows the carriage to rest simultaneously against the edge and against the flat of the ski during the passage of a machining operation of a face of the edge to the machining operation of the other face. This results in a maintenance of the setting in position and a suppression of the risks of imprecision of the sharpening obtained.
• the translational power of the machining assembly in two perpendicular adjustment directions confers a means for adjusting the depth of pass and an ability to adjust the positioning of the abrasive tool so that it does not machine the plastic of the ski.
• the connecting means comprise means for precisely adjusting the angular position of the support relative to the carriage about the pivot axis in each of the first and second positions.
• Such adjustment means make it possible to adjust more finely, depending on the applications, the angle that forms the lower face of the edge with respect to the flat of the ski after machining and the angle that forms the lateral face of the edge relative to on the underside after machining.
• the connecting means comprise means for precisely adjusting the position of the support relative to the carriage in the second direction of adjustment in each of the first and second positions
• the means of fasteners comprise means for precisely adjusting the position of the machining assembly relative to the support in the first direction of adjustment in each of the first and second positions
• the connecting means are constituted by a linear displacement system having a sliding part connected to the support and a guide part connected to a rotating part of a rotary system of which a fixed part is connected to the carriage
• the first support means comprise rollers intended to roll on the edge of the ski
• the second support means comprise wheels intended to roll on the flat of the ski.
• FIGS. 1 and 2 show an example of a sharpening device in the machining situation of a lower face of a square of a ski, respectively in perspective and laterally
• FIGS. 3 to 5 illustrate the device of FIGS. 2 in the machining situation of a lateral face of the edge, respectively in perspective, laterally and transversely.
• ski will be used in a broad sense, to designate both skis themselves and boards or other means of gliding equipped with edges.
• FIG. 1 to 5 An example of a portable sharpening device 10 of the edges of a ski is shown in Figures 1 to 5 and consists mainly of a frame 11 and a machining assembly 12.
• the frame 11 is intended to provide the guiding and positioning of the machining assembly 12.
• the machining assembly 12 comprises an abrasive tool 13 by rotation and a drive motor of the tool 13, electrical type powered by mains or battery.
• the abrasive tool 13 is collinearly mounted on the axis of rotation of the motor by any suitable transmission system.
• the axis of rotation of the abrasive tool 13 is marked X and coincides with the axis of rotation of the motor.
• the engine and the transmission system are housed in a casing 17 of cylindrical shape whose axis of revolution coincides with the axis of rotation X.
• the frame 11 consists of a carriage 15 for sliding along the ski and a support 16 carrying the machining assembly 12.
• the support 16 and the carriage 15 are assembled by connecting means described below, which provide possibilities of movement of the support 16 relative to the carriage 15.
• the machining assembly 12 is connected to the support 16 by fastening means carried by the support 16.
• the support 16 is mainly formed by an assembly sleeve 18 of cylindrical shape.
• the internal diameter of the assembly sleeve 18 makes it possible to axially insert the casing 17 inside the assembly sleeve 18.
• Such an assembly allows the machining assembly 12 to be fixed on the support 16 according to a connection leaving at least one degree of freedom in translation to the machining assembly 12 in the direction coinciding with the axis of rotation X of the abrasive tool 13.
• the support 16 is also equipped with a locking mechanism reversible of the translation of the machining assembly 12 in the assembly sleeve 18.
• the locking mechanism is formed, for example, by an immobilizing bolt 19 screwed radially into the thickness of the bushing. assembly 18.
• the head of the immobilizing bolt 19 is placed outside the assembly sleeve 18 in order to be manually accessible, while the opposite end of the bolt comes to apply a radial force on the housing 17 sufficient to block, by friction, the translation of the machining assembly 12 in the assembly sleeve 18.
• the mechanical connection formed by the assembly sleeve 18 combined with the reversible action of the locking mechanism constitutes fastening means of the machining assembly 12 allowing a translation of the machining assembly 12 in a first direction of adjustment D1 coinciding with the axis of rotation X of the abrasive tool 13.
• the connecting means for mounting the support 16 on the carriage 15 are constituted by a linear displacement system 20 having a sliding portion 20a connected to the support 16 and a guide portion 20b connected to a rotating part (not shown) of a rotary system 21 of which a fixed part 20a is connected to the carriage 15.
• the linear displacement system 20 and the rotary system 21 constitute the connecting means.
• the connection between the support 16 and the sliding part 20a is achieved by fixing a coupling member 22 projecting from the outer face of the assembly sleeve 18.
• the attachment of the coupling member 22 to the sliding part 20a can be made by any suitable means, for example by means of fixing screws (not shown).
• Sliding and guide portions 20a may be formed, for example, by complementary dovetail shaped profiles.
• the linear displacement system 20 comprises a first control button 20c of the displacement of the sliding portion 20a with respect to the guide portion 20b, which displacement is performed in a rectilinear direction of sliding which is perpendicular to the first direction of adjustment D1.
• the connection means between the carriage 15 and the support 16 have means, constituted by the system 20, allowing a translation of the support 16 in a second adjustment direction, denoted D2, which coincides with the rectilinear direction of sliding. .
• the second adjustment direction D2 is therefore perpendicular to the first direction of adjustment D1.
• the orientation of the pivot axis Y is such that the longitudinal direction D3 is simultaneously perpendicular to the first and second adjustment directions D1 and D2.
• the carriage 15 consists first of a plate 23 having two parallel faces 23a, 23b, respectively lower and upper.
• the plate 23 comprises a first series of wheels 24 whose axes of rotation are perpendicular to the plane of the plate 23 to protrude from one of the side faces of the plate 23 so as to be aligned with one another.
• a second series of rollers 25 is provided with axes of rotation parallel to the plane of the plate 23.
• the rollers 25 of the second series are arranged to protrude from the underside 23a by being coplanar with each other.
• a side face of the plate 23 is a face connecting the lower faces 23a and 23b upper. The number of lateral faces is variable according to the shape of the contour of the plate 23.
• the carriage 15 further comprises an attachment panel 26 standing perpendicularly from the upper face 23b of the plate 23 and perpendicular to the longitudinal direction D3.
• the shape of the contour of the fastening panel 26 is arbitrary.
• the fastening panel 26 is equipped with a handle 27 disposed near the upper face 23b of the plate 23.
• the fastening panel 26 is intended to allow attachment to the carriage 15 of the connecting means above.
• the fixed portion 21a of the rotary system 21 is fixed against one of the faces of the fastening panel 26 by any suitable means, for example by means of a clamping bolt 28 attached from the opposite face of the panel 26 and through the thickness of the panel 26 through a light until screwed into the fixed portion 21a.
• the screwing of such a clamping bolt 28 has the effect of creating a clamping of the panel 26 between the head of the clamping bolt 28 and the fixed part 21a of the rotary system 21, sufficient to maintain the rotary system 21.
• FIGS. 1 and 2 to understand how is machining the underside of a square. They show, in addition to the device 10 which has just been described, a ski 29 whose plate 29a is provided with at least one edge 30.
• the edge 30 has a lower face 30a bordering the flat 29a of the ski and a side face 30b bordering a song 29b of the ski 29.
• the lower faces 30a and 30b side join to form a ridge.
• the ski 29 is disposed on a not shown base, its flat 29a facing upwards. With the drive motor turned on, the portable sharpening device
• the device 10 is placed at one end of the ski 29 by applying the second series of rollers 25 against the plate 29a and by bearing the first series of rollers 24 against the edge 29b, more precisely against the lateral face 30b of the edge 30.
• the device 10 is then moved from one end to the other of the ski 29 thanks to the handle 27.
• the rollers 24 of the first series intended to be applied against and to roll on the edge 29b of the ski 29, constitute first bearing means of the carriage 15 in a lateral direction D4 of the device 10.
• the rollers 25 of the second series intended to be applied against and to roll on the flat 29a of the ski 29, constitute second bearing means of the carriage 15 in one direction Transverse D5 of the device 10.
• the lateral and transverse directions D4, D5 are perpendicular to each other.
• the location of the rollers 24, 25 and the orientation of the fastening panel 26 relative to the plate 23 are chosen so that the lateral and transverse directions D4, D5 are both perpendicular to the longitudinal direction D3.
• the longitudinal direction D3 is perpendicular to a lateral-transverse plane including the lateral and transverse directions D4, D5.
• the carriage 15 ensures the placing the device 10 so that the direction D3 is parallel to the ski 29.
• each of the first and second adjustment directions D1 and D2 is also included in the lateral-transverse plane, while being perpendicular to the longitudinal direction D3 and ski direction 29.
• the abrasive tool 13 delivers a so-called "envelope" work.
• the lower face 30a of the edge 30 is machined by a point generation with a generating point digging a groove.
• the machining assembly 12 must be arranged in the support 16 so that the abrasive tool 13 protrudes out of the assembly sleeve 18.
• the rotary system 21 is manipulated by means of the second control button 21b so as to orient the support 16 around the pivot axis Y so that the axis of rotation X of the abrasive tool 13 is perpendicular to the lower face 30a of the edge 30.
• the translation of the machining assembly 12 relative to the support 16 in the first adjustment direction D1, authorized by the fixing means of the machining assembly 12, makes it possible to adjust the depth of pass.
• the translation of the support 16 with respect to the carriage 15 in the second adjustment direction D2, authorized by the connection means between the carriage 15 and the support 16, makes it possible to position the rotation axis X laterally so that the generating point of the abrasive tool 13 does not machine the flat 29a of the ski 29.
• the tilting of the support 16 also allows a coarse adjustment of the angle formed between the lower face 30a of the edge 30 and the flat 29a of the ski 29 after machining.
• the rotary system 21 is manipulated by the second control button 21b so as to tilt the support 16 around the pivot axis Y to orient it so that the axis of rotation X of the abrasive tool 13 is perpendicular to the lateral face 30b of the edge 30.
• the translation of the machining assembly 12 relative to the support 16 in the first adjustment direction D1, authorized by the fixing means of the machining assembly 12, makes it possible to adjust the depth of pass.
• the translation of the support 16 relative to the carriage 15 in the second adjustment direction D2, authorized by the connection means between the carriage 15 and the support 16, makes it possible to position the axis of rotation X transversely so that the generating point of the abrasive tool 13 does not come to machine the edge 29b of the ski 29.
• the tilting of the support 16 also allows a coarse adjustment of the angle formed between the side face 30b of the edge 30 and the edge 29b of the ski 29 after machining.
• the connecting means make it possible to tilt the support 16 around its pivot axis Y at an angle of 90 degrees between a first position (FIGS. 3 to 5). machining of the lateral face 30b of the edge 30 and a second position (FIGS. 1 and 2) for machining the lower face 30a of the edge 30.
• the tilting of the support 16, and therefore of the machining assembly 12 through the fastening means allows the carriage 15 to rest simultaneously against the edge 29b and against the flat 29a of the ski 29 during the passage of a machining operation of a face 30a, 30b of the edge 30 at the machining operation of the other face 30a, 30b.
• the three-dimensional repository formed by directions D3 to D5 remains invariant with respect to the carriage 15 and the ski 29, while the pair of adjustment directions D1 and D2 switches with the support 16.
• the connecting means may comprise precise adjustment means (not shown) the angular position of the support 16 relative to the carriage 15 about the pivot axis Y in each of the first and second positions.
• precise adjustment means can advantageously be integrated with the rotary system 21.
• the fixing means can comprise means of precise adjustment (not shown) of the position of the machining assembly 12 relative to the support 16 in the first adjustment direction D1 in each of the first and second positions.
• the connecting means may comprise precise adjustment means (not shown) of the position of the support 16 relative to the carriage 15 in the second adjustment direction D2 in each of the first and second positions.
• precise adjustment means can advantageously be integrated in the linear displacement system 20.
• the abrasive tool 13 delivers a job called "form". In each machining operation, the face 30a, 30b of the square
• the translational power of the machining assembly 12 in the two perpendicular adjustment directions D1, D2 confers a means for adjusting the depth of pass and a possibility of adjust the positioning of the abrasive tool 13 so that it does not machine the plastic of the ski 29 at the flat 29a or the edge 29b.
• the tilting of the support 16 also allows an adjustment of the angle formed between the face 30a, 30b of the edge 30 and respectively the flat 29a or the edge 29b of the ski 29 after machining.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
• Motorcycle And Bicycle Frame (AREA)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

Country Status (5)

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Family Cites Families (22)

• 2008
  • 2008-02-07 FR FR0800645A patent/FR2927260B1/fr not_active Expired - Fee Related
• 2009
  • 2009-01-28 WO PCT/FR2009/000098 patent/WO2009112698A2/fr not_active Ceased
  • 2009-01-28 CA CA2713907A patent/CA2713907A1/en not_active Abandoned
  • 2009-01-28 EP EP09719338A patent/EP2300113A2/de not_active Withdrawn
  • 2009-01-28 US US12/865,003 patent/US20100330889A1/en not_active Abandoned

Non-Patent Citations (1)

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