FR2628647A1 - SECURITY FASTENING FOR SKI - Google Patents

Abstract

The present invention relates to a safety binding for a ski. This safety binding is characterized in that it comprises a first rocker 14 mounted between a rear end part 11a of the force transmission member 11 and the front parts 8a of the two lateral retaining wings 8 and a second rocker 16 in the form of an angled lever, articulated on the body 5 around a horizontal and transverse axis 16e, this second rocker 16 comprising a substantially horizontal upper part 16a, extending towards the rear, and carrying a pad 15 for bearing on the upper horizontal face of the edge of the sole 3a, and, at the front of this upper part 16a, a lower part 16b, 16c connected to the first rocker 14 by a horizontal and transverse articulation axis 17.

Description

The present invention relates to ski securing equipment

  intended to maintain. triggerable way 1 before a shoe mounted on the ski

  We already know security bindings for skiing.

  still referred to as "forward stops" which comprise a body

  mounted on a fixed base of the ski this body-

  in its rear part one. retainer jaw of the shoe

  which has two lateral retaining wings

  poses and a mechanism of energization loqé in the body

  to resiliently urge the jaw into position d--

  this energetic mechanism, including a resumption of compressed energy taking support. b at one end on a bearing surface connected to the body Pt at its other end on a transmission or transmission shaft movable forcefully on the body and acoupled to the jaw so as to elastically urge the jaw against the front of the

  shoe, to test the reality on the skis

  A front stop of this type which is described in the

  DE PS 2 7'6 249 has flaps for retaining latch.

  independent. airticul], around the respective axes. and a centrally located central greenhouse with wings CP in the soleplate comprises a support element in contact with the upper horizontal face of the edge of the ground, and the bearing plate is mounted. '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' '' 's' - I'V i er a

  two branches airtight around a hori7onta axis and trans-

  versl. this lever including uin? second branch inclined-

  up and down and back to front. The lower end of -

  the second leg of the lever is interposed between the anterior extremities curved towards the longitudinal axis of the lateral retaining wings and a tab folded upwardly. formed by the posterior part of a pulling rod biased towards the front by the spring of the mecha

  energization. As a result, the greenhouse is sol-

  elasticity of the upper horión-

  from the edge of the seme] the using a part of 1 enerqie provided by the spring of the enernisation mechanism Therefore] the vertical movement of seer - semelr the towards the

2? 2628647

  High in the case of a fall of the skier entails an additional compression of the spring of the mechanism of energy. that is to say, a a] i slightly of the hardness of the fixation with respect to a lateral bias of the retaining wings in the case where the fall of the skier is

  combined with a twist of. his leg.

  The present invention relates to improvements made to this type of abutment for the purpose of allowing an automatic adaptation of the greenhouse sole h different

sole thicknesses.

  For this purpose, this ski safety binding

  held to maintain, detachably 1 before a shoe mounted on, the ski having a body mounted on a base integral with the ski, the body carrying. in its rear part a shoe retaining jaw which comprises a stern clamp hinged about a horizontal and transverse axis and two lateral retaining wings (oppo sees articulF.es about respective vertical axes) and an energetic mechanism housed in the body for resiliently urging the jaw into the encroaching position; eeneration mechanism comprising an energy spring resting at one end on a suction surface;

  to the body and at its other end to a trans-

  a mission of force movable longitudinally in the body and coupled to the jaw so as to resiliently bias the elements of this jaw. namely the sole clamp and the two lateral retaining wings against the front of the sole of the shoe. to ensure the reentije ie it on the ski, the force transmitting member exercising a lonqitudina effort]. towards 1 back or towards the front. on the anterior extremities of the lateral retenup wings or on a transverse support. laterally movable, on which are mounted the wings- is characterized in that it comprises a first rocker mounted between a posterior outer portion of 1 orian (effort trarismission and the anterior parts of the two wings retainer) atdrale or the transverse support of these ai les and a scond bascu their in the form of articulated rlevier articul] on lr, body or the

3 2628647

  base around a hori7ontaI axis and transverse this second rocker comprising an upper portion substantially horizontal- stendantl veirs 1 'back and carrying a support pad on the upper horizontal side of the edge of the

  sole and the front of this upper part a

  lower link connected to the first rocker to pay an axis of a.r-

  horizontal and transverse articulation whose position is

  such as the shoe sole pad is normally

  quoted elastically by the spring of the decommissioning organization. against the upper horizontal face of the edge of the sole and that a movement upwards of this pad. in case of falling back. It involves intermittently the two rockers and the transmission of effort (an additional compression of the spring of the energizing mechanism, which will be described below as non-limiting examples.

  tive. various embodiments of the present invention.

  with reference to the accompanying drawing in which Figure I is a vertical sectional view and Ion longitudinal of a front stop according to the invention. in our engagement. in the case of maintaining a week

shoe of low thickness.

  Figure 2 is a horizontal sectional view taken along line IT-II of Figure 1; Figure 3 is a plan view. with tearing

  part. from the front mound of Figure 1.

  FIG. 4 is a broken perspective view of the main constituent elements of the stop before the

figure 1.

  Figure 5 is a diagram illustrating the action of the

push on the rockers.

  Figure 6 is a horizontal sectional view sem--

  FIG. 7 is a partial vertical sectional view of the front stop of FIG. 1. in the case of maintaining a sole of a shoe. thick

4 2628647

  R and R, and R. a green flash in green i

  tudina] e of an alternative execution of the hutf, before

  efore] invention. in the position of cnc] enchem-rint.

  Figure 9 is a view? in horizontal section. made according to line IX -IX of Figure 8

  FIG. 10 is a horizontal sectional view

  Figure 9 of the front stop in the release position. The fi lter is shown in Figure 1, and the longitudinal portion of the front stop is shown in Figure 8. In In the case of one week, the unit should be thick enough. FIG. 12 is a view * n cut vert icale and

  partial longitudinal of a variant of executin.

  FIG. 13 is a sectional view made according to the

line XIII-XIIT of Figure 12.

  FIG. 14 is a vertical and vertical view of

  partial longitudinal of a variant-execution.

  Referring to Figures I G6. we see that these figures represent a security attachment. 1 which is mounted on a ski 2. to maintain] the front end of a ski boot 3 shown in phantom. by contact with its sole 3a. This security attachment or "front stop" comprises a base 4 attached to the ski and which carries a fixed body mounted on the base 4 or tilting; its previous part. around a horizontal and transverse axis. The body has. at its rear part. a retainer 6 formed of a central sole clamp 7 and two wings of

  lateral restraint 8 Each of these wings 8 is hinged -

  its anterior part on the body 5 around a vertical axis

  tical 9 close to the vertical and longitudinal plane of symmetry xy of the fixation. Each arcuate wing 8 includes. in front of the hinge pin 9. a protrusion 8a extending forwards and which is situated outwards with respect to the hinge axis 9c, ie which is farther from the longitudinal plane of symmetry xy that the axis 9. To the ar

  each wing 8 comprises a post-8Ob branch.

  inclined from the inside to the outside and the front

, 2628647

  and terminates at its rear end by a qalet 8.c rotatably mounted about a vertical axis. The wings 3 are in contact by their qalets 8c with the vertical side face of the edge of the sole 3a rie the boot 3. to ensure the lateral retention of the boot 3 against the torsional stresses of the leg of the skier. The vertical restraint of the sole 3a is provided by the central sole clamp 7, which is applied on the front part of the upper horizontal face of the edge.

of the sole 3a.

  The energetic mechanism of the butte before I

  comprises a force transmitting orqgane 11 constitutes.

  in this case by a slidably mounted pusher in a longitudinal longitudinal hazard 12 formed in the horns 5. in front of the

  jaw 6. bore in which is housed a spring com--

  pressure 13. This compression spring 13 is supported. its front end on a plug which is screwed in an adjustable manner in the threaded front part of the laceration 12. to adjust the compression ratio of the spring 13 and therefore the "hardness" of the binding. The pusher 11 is thus pushed Plastically backwards against a rocker 14 which constitutes an intermediate longitudinal transmission element] between the pusher II and

  the two wings 9. The rocker 14 also ensures the connection

  its mechanics with the sole plate 7 which comprises a pad bearing on the upper horizontal face of the edge of the sole 3a of the shoe and a second rocker 16 integral with the pad 15. This second rocker 16 has the shape

  of a clevis and it includes a horizontal and transverse soul

  superior room 16a. at the rear of which is fixed the shoe 15 s extending horizontally towards the rear This

  substantially horizontal core 16a is extended. in the front.

  by two lateral branches 16b. l6c extending down

towards the base 4.

  Elevation view: the clevis 16 has a substantially right angle shape and near its vertex each of the lateral and vertical branches] 6h.16c is

  pierced with a light 16d substantially vertical. In addition

  6z 2628647 their first 'risper 14 carries at its upper end. a horizontal and transverse axis 17 whose two end portions are housed respectively in the light 16d lights which are aligned transversely. The two lateral and vertical branches 16b. 16c of the second rocker 16 in the form of clevis are hinged. at their lower ends on the base 4 of the fixation, around a common horizontal and transverse axis which is materialized by

  two horizontal and transverse axes coaxialux 16e soli-

  the lower parts of the two branches 16b.16c and which are respectively engaged in coaxial holes of two bearings 18 aligned transversely and integral with the

base 4.

  The first rocker 14 has a surface ant5-

  4a) of cylindrical shape, of horizontal axis and trans versal], which is applied against a rear face 11a of the pusher It has also a cylindrical shape of transverse and horizontal axis The rocker 14 is'so mounted in a manner h can rotate in q.] issa'nt on the on

  cylindrical stop face 11a of the pusher 1.

  In the lower part of its posterior face 14b the first rocker 14 has a horizontal notch and

  transverse 14c b section in form of open U to

  and in the posterior face 14b. In this notch 14c is a horizontal and transverse ridge 19 which is e. set in 9d lights. Transversal elements, which are pierced in the previous projections 8a of the two wings 8 The surface 14a and the face Ila cooperate with one another and they respectively have a shape such that the compression spring 13 oar l ' intermediate of the pusher 11 and by action on the rocker 14. tends to bring the branches 16b.16c of the yoke 16 to the erticale and the pad in its lower position shown in Figure 1 A. This effect the surface 14a and the l1a face have such shapes

  that they are in contact only according to a hierarchical

  this transverse A who is. located above the hnrizon plane

  tal passing through the axis of the pin 19.

7 2628647

  In the position illustrated inI 1h 3 the security fastening according to the invention is engaged and ensures the maintenance of a shoe 3 whose sole 3a has a relatively low thickness. The pusher 11

  which is pushed back by the compressor spring

  12 of the energization mechanism. exercises on the first

  rocker 14 a longitudinal force f diriqé to the rear-

  re. This rocker 14 which is engaged by its notch] .4c. on the transverse pin 19 engaged in the two projections

  previous ga both wings 8. in turn exercises an ef--

  strong backward fl ight on these forefingers.

  Since the contours of the transverse pin 19 with the projections Ra are located outwardly with respect to the hinge pins 9 of the wings 9, the force f

  translated by an elastic solicitation of the branches post.-

  8b of the wings 8 in the direction of the longitudinal plane of symmetry xy. that is to say, the two side holdings 8 are biased elastically against the vertical side-face of the edge of the sole 3a. The level of

  rocker 14 the previous force gives rise to a reaction

  opposite f'l. Moreover, the pusher 11 exerts on the rocker 14 the force f, the point of application A of which is above the point of application of f'l, ie above the pin 19. In this case, of the respective shape of the surface 14a and the face 11a. That way I down

  the culprit 14 is subjected to a torque C which tends to make it

  turn counterclockwise (figure). This torque C drives the yoke 16 in the same se'ns and gives rise to a horizontal biasing force f2 rearward at the upper transverse axis 17. force which tends to bring the pad 15 downwards. This has the effect of elastically applying the shoe 15 of the sole clamp 7 on the upper horizontal face of the edge of the sole 3a under the effect of the spring 13. this pad 15 then exerting a f3 effort directed downwards Si]. The safety fastening is used with a shoe whose sole 3a 'has a greater thickness b as shown in FIG. 7. The fastening ensures that the sole is still correctly secured. have manually adjust the position of the sole clamp. In that case

  the skier needs the foot before the sole 3a in the in-

  flicked from top to bottom and back to front in the jaw 6. This is to say between the shoe 15 of the sole clamp 7 and the

  base 4 and then makes it.pivot his shoe for the ap--

  fold flat on the base 4 of the attachment. This has the effect that the front of the sole 3a raises the shoe 15 of the greenhouse sole 7 which then rock in good ensemhbe danris the direction of aiquilles a watch. around the lower axis

  16th to reach the position shown in Figure 6.

  This changeover takes place against the action of the

  12. During the shake-out of the stern clamp

  7 in the direction of clockwise. the second-

  16 e'ntraine rocker then forward by its lights 16d. the upper axis 17 of the first rocker 14 and it pivots as a whole around the transverse pin

  19, to reach an inclined position as represented

  7. During this rotational movement

  the cylindrical front surface 14a of the charger 14

  slides on the posterior cylindrical surface lla of the pus-

  evening 1l. which has the effect of moving the pusher Il in

  the direction of compression of the spring 13. 'At the level of

  14. The couple who tends to rotate it, at the same time

  increase the forces f'l and f and the

  lever arm. Indeed as it is visible on

  FIG. 7 the point of application A of the force f rises.

  From the foregoing description it can be seen that the

  clamp is a sort of elastic clip that automatically adjusts to all thicknesses of

shoe soles.

  It should be noted that for this adaptation? different heights of sole. the sole clamp is energized by the mainspring. Moreover.- the restoring force of the wings. for soles of different thicknesses, varies little.

  In the variant embodiment of the invention,

  Figure 8, Figure 1. The front side is type l

9 2628647

  opening jaw 6 whose two lateral retaining wings 8 are articulated mounted. around their respective vertical axes 9 on a common crossbeam 2]. This crossing 21

  is in turn articulated. through the vertical axes

  9. on the posterior end portions of two longitudinal arms 22.23 which are hinged. previous extremes. on the body 5. about respective axis 24.25. Furthermore, the first rocker 14 carries a roller 26 which is rotatably mounted about a vertical axis 27 and

  which is housed in a recess 28 of the first rocker 14.

  This recess 28 opens out. at the rear by a relatively narrow slot 29 which is provided in the rear face 14b of the first rocker 14. The cross member 21 is engaged in the recess 28 through the slot 29 and

  it is in contact with the lateral surface of the roller 26.

  which advantageously has the shape of a hyperboloid of revolu-

or a diabolo.

  With the arrangement of the front stop illustrated in FIGS. 8 to 11, in the case where the sole clamp 7, for mant elastic clip. rotates around its lower 16th axis. in the direction of the ticks of a watch. the first rocker 14 accompanies this movement and son.galet 28 which is pushed against the front edge of the cross 21. pivote

  around this edge, as illustrated more particularly

  on the fi rst He. The tilting movement of the first rocker 14 is reflected. as in the case described in

  reference to figures ih 6. by a slight movement of the

  evening it forward and a slight additional compression

compression spring 13.

  The shape of the contacting cylindrical surfaces 14a and 11a can be chosen so as to cause a different displacement of the pusher 11 towards the front, and consequently an additional compression different from the spring 13 according to the amplitude of the tilting of the sole clamp 7. In the first part of the annular deflection. corresponding 5 the height adjustment range according to the thickness of the sole. that is to say, a distance of about 2 h 5 mm at the location of the support of the pad 15. the tilting of the greenhouse lu0, 2628647 semoelle 7 in the direction of the niguilles of a watch causes

  then a small additional compression of the spring 12.

  On the other hand, beyond this plate of variation of inclination

  its, the tilting of the sole clamp which then intervenes

  in the case of a fall back. can cause a compro-

  addition of the spring 12. In a first embodiment relating to FIGS.

  the first part of the tilting switch.

  laying at the thickness adjustment range. the two surfaces 14a of the first rocker arm 14 and 11a of the pusher 11 cooperate alone to cause additional low compression of the spring 13. while beyond this range the second rocker 16 in turn directly abuts. by the

  anterior edges 16f of its lateral branches 16b.16c.

  against shoulders 11b of the piston 11 to act directly

  on this piston and cause additional compression

  much stronger of the spring] 3.

  So. the tilting movement of the shoe 15 is transmitted through the front edges 16f of the yoke 16 directly to the pusher it. without passing through the rocker 14. This causes a lightening of the lateral force of the wings. that is, a decrease in the

  force f in the case of a combined haul / torsion fall.

  The figures. 12 and 13 illustrate the extreme case of a pure rear fall o the action of the pad 15 and the clevis

  16 on the shoulders 11b of the pusher 11 is of an intensi-

  such as it causes the relative decay of surfing

  these 14a and 11a. The wings are then free to pivot

  outward on an amplitude of motion which corresponds to the amplitude of the separation between the surfaces

14a and lla.

  In a second embodiment illustrated on the

  Figure 14. the rocker 14 has at its lower part.

  a shoulder or spout 14c which cooperates with a stop of the

  clevis 16 to make the rocker 14 and the clevis 16 sensi-

  one piece beyond the first part of the debate.

  angle of the sole clamp 7. Advantageously. the abutment of the clevis 16 can be constittiéets. by the axis 16 "to him mmr

11. 2628647

  which is then continuous. instead of being cut in half

  pins or lugs as shown in Figure 4.

  Figure 14 illustrates the case of a pure fall back. o the solicitation exercised by the shoe on the seed clamp] causes the detachment of the pin

19 relative to the notch 14c.

  Although the above description has focused on

  a front stop of the piston or push type 11 pushed backwards by the action of the energy spring 13 of the

  energy mechanism. it goes without saying that the invention

  It is also possible to apply in the case of a front stop comprising a tie rod elastically biased forward.

  by the energy spring and acting on internal parts

  nes, close to the plane of longitudinal symmetry xy. for sol-

  allow lateral restraint wings 8 and apply them

against the edge of the sole.

12 2628647

Claims (10)

REVENDICATT ONS   1.- Ski safety binding for maintaining   ne. in a detachable manner, the front of a shoe   on the ski, comprising a body mounted on a solid base   ski, this body carrying. in its rear part. a jaw restraining the shoe which includes a   squeegee articulated around a horizontal and trans-   versal and two opposite lateral retaining wings hinged about respective vertical axes. and an energetic mechanism loqued in the body to elastically recall the   jaw in the engaged position. this energy mechanism   sation comprising a support energy spring. at one end. on a bearing surface bound to the body and. at its other end. on a force transmitting member movable longitudinally in the body and coupled to the jaw to elastically bias the elements of this jaw. h know the greenhouse.semelle and the two wings of lateral retention. against the front of the sole of the shoe, to ensure the retention of it on the ski. the force transmitting member exerting an effort   longitudinal, towards the rear or towards I before. on the   extremes of the lateral retaining wings or on a laterally movable transverse support on which the wings are mounted. is characterized in that it comprises a first rocker (14) mounted between a part   posterior end (11a) of the transmission organ of   strong (11) and] anterior parts (8a) of the two lateral retaining wings (8) or the transverse support (21) of these wings (8). and a second rocker (16) in the form of a bent lever. articulated on the body (5) or the base (4) around a horizontal and transverse axis (16e). this second rocker (16) comprising a substantially horizontal upper portion (16a). extending backwards. and carrying a bearing pad (15) on the upper horizontal face of the edge of the sole (3a) ,. and. at the front of this upper part (IIa). a lower part (16b.16c) connected to the first rocker (14) by a hinge axis horizo) ntal and 13 2628647   transverse member (17) whose position is such that the shoe (15) of the greencloths is normally biased elastic   by the spring (13) of the energizing mechanism.   against the upper horizontal face of the edge of the sole (3) and an upward movement of this pad (15), in case of a fall back. causes. via the two rockers (14.16). and the force transmitting member   (11). an additional compression of the spring (13) of the energization.   2.- Ski safety binding according to the claim   1 characterized in that the first cant (14) is in contact with the posterior end (lia) (lde)   the force-transmitting member (11) by a cymbal surface   lindrique (14a). transverse axis, bearing against another cylindrical surface (11a). transverse axis, provided   on the force transmitting member (11).   3.- Safety fastening for ski according to the claim   2, characterized in that the cylindrical contact surfaces (14a.11a) have a curvature such that their point of contact (A) rises with an upward movement of the pad (15).   4.-Ski safety binding in which the or-   qane transmission force is constituted by a pusher (11l) pushed back by the compression spring (13) of the energetic mechanism. according to any one   of the preceding claims characterized in that the   second rocker (16) is in the form of a yoke comprising an upper horizontal web (16a) behind which is fixed the support pad (15) of the sole clamp (7), extending horizontally towards the back and two side branches   and vertical (16b.16c) prolonging the soul (16a). in the front.   down. towards the base (4) of the binding. these   two lateral and vertical branches (16b.16c) being   abutments. at their lower extremities. on bearings (18)   fixed to the base (4) of the binding. by being alienes trans- versalement.   5.- Safety binding for ski according to the claim   4, characterized in that the two lateral branches 14 2628647   read and vertical (16b.16c) wear. h their extreme parts   my inferiors. horizontal and transverse lugs co-   xials (16e) which are respectively engaged in holes coaxial of the two bearings (19).   6.- Ski safety binding according to one   any of claims 4 and 5 characterized in that   each of the lateral and vertical branches (16b.) 6c) is pierced near the top of the right angle formed by the second rocker arm (16). a light (16d) substantially   vertical. and the first rocker (14) carries. to his extra-   upper half, a transverse axis (17), the two parts of which   extremes are housed respectively in the two   miers (16d) which are aligned transversely.   7.- Ski safety binding according to one   any of claims 4 to 6 characterized in that   the first rocker (14) has an anterior surface   (14a) of cylindrical shape of horizontal axis and transverse   sal. which is applied against a rear face (11a) of the pusher (11). also having a cy] indri   only with transverse axis and the same radius of curvature.   8 .. Safety ski fixation according to one   any of claims 4 to 7 characterized in that   in the lower part of its rear face (14b) the first rocker (14) has a horizontal notch and   transverse section (14c) having a J-shaped section open towards the   and opening into the rear face (14b) and into this notch (14c) extends a horizontal pin and   transverse (19) which is engaqée in lights (Bd).   aligned transversely. which are pierced in   the previous ties (8a) of the two lateral retaining wings (8). 9.- Ski safety binding following one   any of claims 4 h 7 in which both   lateral retaining wings (8) are carried by a cross member (21) movable laterally. characterized in that the first bouncer (14) carries a roller (26) of vertical axis (27) which   is in contact with the front edge of the cross member (21).   In.- Safety binding for skiing followed by the 1 * 5 2628647   9 characterized in that the q al3t (26) is loqi in a recess (28) of the first bascu] eur (14). recess which opens into the posterior face (14b) of the first basemember (14) by a slot (29). and the cross member (21) is engaged through the slot (29) to be in contact with the roller (26).   11.- Ski safety binding following one   any of claims 9 and 10 characterized in that   ga] and (26) has a hyperboloid shape of revolution or diabolo. 12.Safety fixation for skiing following one   any of the preceding claims characterized in that   that the yoke (16) has a ramp (16f) which comes into contact with a shoulder (11b) of the pusher 11 beyond a determined amplitude of the upward movement of the shoe (15) in such a way that as a result of this movement, an additional upward movement of the pad (15) directly the movement of the pusher (11).   13.- Ski safety binding following one   any of claims I to II characterized in that   the rocker (14) has a shoulder (14d) which cooperates   with a stop (16e) of the clevis (16) to make the   their (14) and the substantially one-piece fork (16) beyond a determined amplitude of the upward movement of the shoe (15)