DE2227500A1 - Ski binding - Google Patents

Description

concerning
Ski binding

When skiing, falls are caused partly by tilting forwards or backwards and partly by turning movements of the skier caused around the vertical axis. When tipping over, the ski boots perform tilting movements with respect to the skis the distance between the rear ends of the ski boots and the ski surfaces compared to the distance between the front ends Ends of the ski boots and the ski surfaces of the skis is enlarged. When the skier tilts forward, the Ski bindings have an excessively large, forward-acting tilting moment. If with a forward tilting moment of a certain size, the ski boots are not released, the ankles of the runner are excessively stressed, because the heels are caught in the ski boots, which can lead to serious injuries.

/ 2

2098B3 / 0702

41 428

Injuries can also occur if a backward tilting moment occurs without releasing the ski boots will. Lead when the skier tips backwards the ski boots from a tilting movement with respect to the skis, in which the distance between the front ends of the ski boots and the ski surfaces compared to the distance between the rear ends of the boots and the ski surfaces enlarged. When the skier tilts backwards, the ski bindings become excessively large, directed backwards Tipping moment applied after the skier's knees have been bent back as far as the circumstances require after is possible.

Serious injuries can also be caused if a torsional moment occurs around the vertical axis, the one exceeds a predetermined value without releasing the ski boots; a rotation around the vertical axis is a Rotational movement of the ski boots with respect to the longitudinal axis of the skis, in which the sole surfaces of the ski boots are theirs Maintain parallel position of ski surfaces. In the event of a twisting fall, excessive torsional moments are created on the ski bindings upset.

With numerous known ski bindings, it is not possible to control the overturning moment at which they are when forward or Trigger backward tilting, set independently of the torsional moment at which they trigger under torsional stress. This is undesirable because it is often necessary to ensure that the ski boots in a twisting fall in one a different torque than with a forward or backward fall.

20985 3/0702

■ - 5 -

41 428

Furthermore, there are friction surfaces in many known ski bindings present between your ski boot and the ski, so that forces occur in such a way that the trigger point is located can not be set reliably, d.iu that the Release of the ski boot is effected under different conditions with different values of the torque.

The invention is based on the object of creating an improved ski binding in which these frictional forces and pairs of forces only have a minimal effect on the release process. Furthermore, according to the invention, an improved ski binding has been created which has a device which makes it possible to vary both the torque occurring during a forward or backward fall and the torque occurring during a twisting fall at which the ski boot is released. Further, the invention provides an improved ski binding has been created according to, present in the device is a j makes it possible to vary the release torque for forward and backward falls regardless of the release torque for D ^ ehstürze.

In order to achieve the stated object, according to the invention devices operating with low friction are provided, which serve to hold a sole plate receiving a ski boot at a distance from the upper surface of the Support skis. There is also a release device present, which releases the connection between the sole plate for the ski boot and the ski as soon as a forward or Torsional fall a certain torque occurs; here the set torques can be varied independently of one another «. An interception device is also available, one part of which is attached to the soleplate, while another ieil is connected to the ski. .

"During normal skiing, i.e. as long as the skier his posture and his body neither

.09853 / 0702

-.Zj.-

41 428

Tilting movements forwards or backwards and turning movements runs that exceed a predetermined amount, the weight of the skier is reduced by those with low friction working facilities added »As soon as the skier falls forwards or backwards, so that a Tilting torque acting forwards or backwards occurs, which is the value set with the aid of the release device exceeds, the ski boot is released, and this prevents the catching device that the ski of the Boots separates.

If there is sufficient torque around the vertical axis to cause the soleplate to rotate perform in a horizontal plane, and this torque exceeds a predetermined value, will the ski boots also released.

The invention is described in more detail below explained on the basis of schematic drawings of an exemplary embodiment »It shows:

1 shows a ski binding in an exploded perspective view, partially broken away ;

FIG. 2 is a plan view of the ski binding connecting a ski boot to a ski according to FIG. 1; FIG.

2a shows an enlarged horizontal partial section through a hinge plate and a hinge column;

FIG. 2b shows an enlarged vertical partial section through the joint plate and the joint column according to FIG. 2a;

Fig. 3 is a foreshortened section taken substantially along line 5-3 in Fig. 2;

Fig, 4 in an enlarged plan view of part of Release device, which is used for frontal or twisting falls

209853/0702

41 428

? / effect comes;

FIG. 5 shows a partial section along the line 5-5 in FIG. 4;

Figo 6 in plan the ski binding immediately after Release in the event of a twisting fall;

7, in a shortened vertical section, the ski binding immediately after a frontal fall induced release process; and

8 shows a shortened longitudinal section of the ski binding immediately after a backward fall caused Triggering process ο

Overall, the drawings show an inventive Ski binding for attaching a ski boot 10 to a ski 12β. The ski boot 10 is a ski boot known type made of a substantially rigid material with a rigid sole 14. It is a rigid one Metal sole plate 16 with which the boot 10 can be detachably connected. So that such a connection can be produced is a holding part 18 for the front end of the boot with the front part of the sole plate 16 connected, and also a manually releasable fastening device 20 is provided. To the fastening device 20 includes a heel holder 22 which can be operated so that it has a downward force exerts on the rear end of the boot sole 14, and length-adjustable arms 24 are assigned to this heel holder, which are rotatably connected to the heel holder and overlap the boot sole 24 on both sides. The one from that Heel holder 22 facing away from the ends of the arms 24 are bent inwardly according to FIG. 1, and the lateral parts of the Hollow plate 16 are aligned with several in transverse alignment Provided openings into which the inwardly bent sections of the arms can be inserted; which are to be used in each case openings are made according to the length of the ski

209853/0702

41 428

elected deep ice. For those skilled in the art it is obvious that the fastening device 20 is designed in a known manner and is used to fasten a ski boot to a sole plate. The fastening device according to FIG. _O is only an example, ie the invention is not limited to the use of the fastening device shown.

From the rear end of the sole plate 16 extends downwardly a flange 26, the lower edge of which is separated by a small distance from the upper side of a metal plate 28 which is attached to the ski 12 at its upper side. The flange 26 is adjoined by lateral flanges which extend along the side edges of the sole plate 16 downwards and from the flange 26 in the direction of the front end of the sole plate, and the height of which decreases in the direction of this front end. At the top of the ski 12 of the front end of the sole plate and the front portions is a generally U-shaped strip attached to the lateral flanges 17 of a slightly susammenaruckbaren elastic filler material in the range, for example, of foam rubber or foamed elastic F _o lyurethan exists. The strip 17 has its maximum fleas below the front end of the soleplate 16 and its height decreases towards its rear end. The strip or the filler 17, together with the flanges protruding downward on both sides with respect to the sole plate 16, prevent snow and / or ice from accumulating on the ski 12 and the sole plate 16 and being compressed here; the presence of snow and / or ice would restrict the freedom of movement of the sole plate 16 with respect to the metal plate 28 on the ski.

With the underside of the sole plate 16, a rigid joint plate 30 made of metal is rigidly connected, which one after has front-facing approach which is provided with a flat front upper surface which extends upwards and backwards

209853/0702

41 428

and is inclined with a direction parallel to the sole plate forming a plane itself pointed forward opening angle * on the projection 52 formed by the tip joins down a semi-cylindrical, vertically extending front Ilasenf laugh 34th A flat front lower surface 36 extends rearward from the lower end of the nose 34, and the surface 36 is adjoined by an upwardly and rearwardly sloping rear lower surface 38. The axis of curvature C of the rabbit 34, which runs through the upper end face of the lug 32, is the yaw or eoch axis _0. The hinge plate 30 has a substantially triangular shape in plan and has two rearwardly diverging side surfaces 30a and 30b, as shown in Fig. 2a is shown.

Under surface 36 of the hinge plate is a small one Pillow block 40 with dimensions of about 9 »5 x 9 * 5 now arranged, which is normally in surface contact with the metal plate 28 of the ski. The one above the surface 32 upper part of the hinge plate 30 is on the sole plate attached so that the bearing 40 is approximately below the center of gravity of a skier wearing the boot 10 .

On the metal plate 28 is an upwardly projecting one Rigid articulated pillar 42 made of metal attached «According to FIG. 2a, the articulated pillar 42 has a V-shaped, widening towards the rear Recess 46 formed by walls 48, 50, 52 and 54 are delimited, with walls 48 and 52 as well as the Walls 50 and 54 face each other in the transverse direction. The walls 48 and 52 are the same height, the walls 50 and 54 are also the same height, but slightly higher than the walls 48 and 52. The recess 46 is bisected by the longitudinal axis of the ski.

At the apex of the recess 46, the walls 50 and 54 are connected by a rounded wall 56. From the upper part an overhanging portion extends from wall 56

209853/0702

41 428

57 in seal on the rear end of the ski 12 »at the bottom The end of the overhanging portion 57 is shown in FIG. 2b a flat surface is formed which is inclined approximately in the same way as the upper end face of the projection 32.

The entrance angle of the recess 46, which is formed by the walls 48 and 52, is considerably greater than that Angle of bearing or receiving of the recess formed by walls 50 and 54 $ the amount by which entry The angle of the bearing is greater than the angle of the bearing is irrelevant for ■ the perfect functioning of the binding «The angle of the bearing between the turns 50 and 54 is greater than that 'angle enclosed by the side surfaces JOa and 30b of the hinge plate, namely by such an amount that the hinge plate can perform swiveling movements to both sides that trigger the binding in the event of a twisting fall, without the side surfaces 30a and 30b coming into contact with the walls 50 and 54. The overhanging section 57 extends a small distance, e.g., about 0.8 mm, across the face of lug 32 relative to the front end of the rabbit 34 to the rear, so that the hinge plate 30 can act as a cam to disengage from the hinge column 42 when the soleplate 16 moves backwards, as happens when too large a tilting moment acting to the rear effect comes so that the ski boot is released. The width of the recess 46 at the rear end of the entry angle is e.g. a few hundredths of a millimeter larger than the width of the rabbit 34, so that the rabbit is in the recess can cooperate with the column part 42 to rotate about the vertical axis C within the bearing angle when the existing '. tolerances allow it; this is discussed in more detail below »

At the front end of the joint column 42 is a support for a lanyard, designed as a King 58 ir-t, which passes through an opening in the joint column 42

•sow

20985 3/070 2: ^BAD

41 428

protrudes so that it can perform rotary movements with respect to the joint column. In addition, there is a second suspension line support in the form of a pin 60 which extends between two bearing blocks attached to the underside of the sole plate 16 above the ring 58 Pin 60 is connected. The length of the lanyard 62 is such that the ski releases the rear or front end of the boot 10 when the binding is released. Between the ends of the suspension line 62, a displaceable elastic retaining device E cooperates with the suspension line, which is, for example _, a rubber band which is anchored to a shoulder 63 of the metal plate 28 in the vicinity of the strip 17 ₅ but behind this strip. This holding device pulls the central part of the suspension line forward so that the suspension line maintains an almost flat position and a generally V-shaped configuration as long as the joint plate JO is in engagement with the recess 46 of the joint column 42.

A bearing part 64 is attached to the metal plate 28, which is somewhat opposite the rearmost part of the sole plate 16 is offset forward, extends transversely to the metal plate 28 and has a transverse location surface 66 which runs parallel to the top of the ski.

A partition 70 extends transversely to the underside of the sole plate 16, in front of the flange 26 and at a small distance from it Include a small angle, and the extension lines of which intersect on the vertical axis C. A roller 76 is freely rotatably mounted on the axis 72 between the partition 60 and the flange 26. Measures are taken here to prevent the hollow 76 from moving along the axis 72. On the axis ^r / ^L V is between the partition 70 and the

209853/0702

4-1 428

- ge _

Flange 26 a second roller 78 freely rotatably mounted; the two rollers 76 and 78 have the same dimensions. In this case too, measures are taken to prevent the roller 78 from moving along the axis 74-. The rollers 76 and 78 have the same diameter, they are equidistant from the partition wall 70 and the flange 26, and they are arranged so that the ä.er lower part of each roller protrudes downward slightly beyond the lower edges of the flanges, which are in the direction of the rollers from the side edges of the sole plate 16 downwards. If necessary, a lower plate 80 can be present according to FIG the soleplate 16 extends from downwardly projecting flanges. According to FIG. 8, the lower flap 80 has a slot 82 through which the lower parts of the rollers 76 and 78 can protrude downwards. The two rollers run on the surface 66 of the bearing part 64- and together with it form a low-friction bearing at the rear end of the sole plate 16 so that the sole plate can swivel about the vertical axis C: _o

According to FIG. 1, on the flange 26 there is a release plate 84- so which comes into effect in frontal and twisting falls attached that the upper end face of the release plate according to Figo 5 in alignment with the top of the sole plate 16 stands. From the rear side 86 (Fig. 4-) of the release plate 84-from A projection 90 protrudes to the rear and is arranged symmetrically to the side edges of the release plate. Kahe the upper one At the end of the approach 90, a transverse surface 96 is provided on its rear side, which extends from the flat upper end face of the release plate 90 from perpendicular to extends down to a ramp 98, which in the direction of the Longitudinal axis of the ski in alignment with the dimension 34- of the hinge plate 30 stands. The ramp 98 extends rearward and downward to a perpendicular surface 100o adjoining it, as shown in FIG. 4-, the ramp 98 has a relatively small one

209853/0702

41 428

Width, and it is curved in the transverse direction to a small extent in the shape of an arc of a circle, its center of curvature lying on the vertical axis C *

Provided under the vertical surface 100 is a recess 102 which is offset to the front and which comes into effect in the case of twisting falls, which is open at its lower end, is generally V-shaped in plan and, according to Figure 4, slightly curved vertical walls 102a and 102b According to S ¹ Xg. 5, the end wall of the recess 102 is inclined slightly forwards and downwards for a reason to be explained, and this recess is bisected by a longitudinal plane which contains the central axis of the joint column 42. The recess 102 and the ramp 98 are arranged vertically one above the other between the upper and lower end of the joint column 42 »

At the rear end of the metal plate 28 is a housing 104 attached, which is generally an inverted U-shaped Cross-section has »This case has a vertical front face 106 and a vertical rear face 108 on. At its front end, the housing 104 is provided with openings 110 and 112 opening onto the end face 106, while at the rear end face 108 two openings 114 and 116 open out. The openings 110 and 114 have the same (cross-section and are aligned with one another in the longitudinal direction »In the housing 104 are perpendicular to one another two lynxes 118 and 120 (Pig. 3) installed. These lynxes have circular walls that extend in the longitudinal direction The rear ends of the lynxes 118 and 118 extend between the two end faces 106 and 108 of the housing 120 are provided with internal threads for a purpose to be explained.

r: she of the front face 106 of the housing 104 are the growths 118 and 120 each with an inward vorspx'in-send ilansch 122 provided. In the front parts the two lynxes are rohrförni (; e, La £ er soaked with Cl

2 0 9 8 5 3/0702 BAD ORIGINAL

41 428

124 and 126 arranged. The end face 106 of the housing is flanged inward in the vicinity of the openings 110 and 112, so that the flanged portions of the housing and the flanges 122 of the bushings hold the bearings 124 and 126 in place they do not differ from the associated sockets can move axially.

From the upper opening 112 of the housing protrudes forward a nipple-shaped one that comes into play in frontal falls Bolt 128 out, which has a circular cross-section and has a flat end face at its free end. The base section of the bolt 128 connects to a guide section 130, which at its rear end has a Has lug 132 of larger diameter. The guide section 130 is slidably guided in the upper bearing 126 »The section 132 of larger diameter is arranged in such a way that that when the bolt 128 protrudes forward from the upper opening 112 slightly beyond that position, at which of the bolts cooperates with the ramp 98 as long as no forward fall is taking place, the section 132 at the Flange 122 of bushing 120 rests in order to further forward movement of bolt 128 relative to housing 104 impede"

According to FIG. 3, an upper plug is in the housing 104 136 installed, and in front of the front end of this plug is a spring plate with an external thread annular component 138 arranged the the external thread having part of ^ ederteller 138 is in the internal thread screwed into the rear end of the upper bushing 120. The spring plate 138 has a at its rear end Partition wall 139 on. The rear end of the plug 136 is provided with a slot 140 for receiving a screwdriver

In the upper bushing 120 is a compression spring 142 designed as a helical spring, one end of which is in contact with the approach or flange 132 of the bolt 128 stands while

209853 / 07Q2

41 428

its other end on the partition wall 139 of the spring plate 138 is supported.

The lower sleeve 118 is a similar assembly with a bolt, compression spring, and plug on similar ones Assigned manner as described with respect to upper sleeve 120; to keep the description as short as possible to keep, a description of these components is dispensed with; it should only be noted that the bolt 146 at Turning lint comes into effect that it protrudes further from the end face 106 of the housing than the upper bolt 128, and that it is rounded at its free end "

If there is no clearance with respect to the hinge plate 30 and the hinge column 42, the hinge plate 30 is received in the recess 46 of the hinge column 42 so that the upper end surface of the lug 32 is in surface contact with the inclined lower surface of the overhanging portion; Here, the side surfaces of the nose 34 are supported on the walls 50 and 54 along two lines of contact, and the pillow block 40 is in surface contact with the metal plate 28 ,

Of course, for one it is by way of mass production manufactured product, such as a ski binding, impossible to ensure in an economical way that the dimensional deviations of the cooperating parts are produced so that the tolerances are equal to Hull, and In view of this, two different positions are provided which the hinge plate 30 when engaging in the Joint column 42 can occupy. In one position, the upper end face of the projection 32 is in contact with the Underside of the overhanging portion 57 »with the bearing 40 touching the metal plate 28, and with the one or other side surface of the nose 34 on the wall adjacent to it 50 or 54 rests within the bearing angle mentioned. With regard to the normally observed manufacturing

209853/07 0 2

41 428

tolerances, there will be a slight, practically imperceptible play in the lateral direction such that the rabbit 34 of the gel plate 30 can move a very small amount in the lateral direction in the recess 46 occurs when the height of the nose 34 is slightly smaller than the distance from the metal plate 28 »In this case, the insertion of the hinge plate 30 into the recess 46 causes both side surfaces of the ease 34 to make rotational contact with the adjacent walls 50 and 54- come, whereby the forward movement of the hinge plate 30 is limited. Here, the bearing 40 is in contact with the metal plate 28, and the end face of the extension 32 is just at a small distance from the underside of the overhanging portion 57. there should be practically no noticeable play in the vertical direction _o The three contact zones described, i They come into effect in the two positions described can wear out in the course of time so that four contact zones come into effect and cause a relative position of the parts mentioned, which practically corresponds to both positions described.

In the following further description of the use of the ski, only the binding of one of the two will be considered at the same time used skis in order to abbreviate the description, but it should be borne in mind that a skier would normally Used skis that are equipped with similar bindings.

The ends of the suspension line 62 are attached to the ring 58 and the pin 60. The sole plate 16 is arranged so that the nose of the hinge pillar 34 of the hinge plate 30 from the recess 46 was added 42 and the bearing 40 to the metal plate 28 supports "As mentioned, there are, depending on the in the hinge plate and the G _e steering column existing checkout deviations two different possible positions,

209853/0702

41 428

from which one combined after wear of the parts Position results, wherein the bearing 40 comes to rest on the & ietallplatte 28 in both cases. Is the soleplate 16 have been arranged so that the hinge plate engages in the manner described in the hinge column, are the Rollers 76 and 78 in contact with the bearing surface 66 so that they can move in the transverse direction with practically no friction "

The sole plate 16 is thereby arranged parallel to the metal plate 28 that the hinge plate 30 in the described ¥ iron is inserted into the recess of the joint column, and that the rear end of the sole plate after is pressed down until the frontal fall protection bolt 128 springs over the ramp 98, so that the torsion fall protection bolt 146 is received by the associated recess 102, whereupon the frontal fall protection bolt 128 attaches itself the ramp 98 is supported. The lower bolt 146 is here in contact with the two volumes 102a and 1O2bο the upper one Bolt 128 is supported on ramp 98. The hinge plate and the joint columns are engaged with each other by the forces held, which are exerted by the two bolts 128 and 146 on the associated contact surfaces. More accurate In other words, the compression spring 142 acting on the upper pin 128 presses this pin against the ramp 98, while the in The spring arranged in the lower bush 118 acts on the lower bolt 146 and this bolt against the walls of the recess 102 pressed

Since the slope of the ramp 98 is fixed, will the force at which the binding is released in a forward fall is determined by the force applied by the bolt exercises on the ramp. This force is a function of the tension of the compression spring 142, which with the help of the externally threaded provided in the spring plate 1J8 screwed into the upper bushing 120 «. The bigger the is the force exerted by the bolt 128 on the ramp 98,

209853/0702

41 428

the greater must be the forward tilting torque that comes into effect when the binding is released should, and vice versa

Since the inclination of the side walls of the recess 102 is invariable, the force "at which the binding is released in the event of a twisting fall depends on the force that the bolt 146 exerts on the walls of the recess 102; this force is determined by the tension of the in The spring contained in the bush 118 is determined, the tension of the spring again depending on the position of the associated spring plate relative to the bush 188.The greater the force exerted by the bolt 146 on the walls of the recess 102, the greater the force to be applied in the event of a twisting fall D _r ehmoment, by the release of the binding is effected, and vice versa.

The force that must come into effect in a backward fall to release the bond depends on the Forces exerted by the two bolts 128 and 146 in the forward direction.

If the binding has been adjusted in the manner just described so that it will not work in the event of a frontal or backward fall or is triggered at the right moment in the event of a twisting fall, the weight is reduced during normal skiing of the skier received by the low friction bearing 40 supported on the metal plate 28, and from the low friction rollers 76 and 78 which are in contact with the bearing surface 66 and can roll unhindered on this storage surface., The above described arrangement for assisting a skier during the run causes the influence of friction reduced to the set trip values under the various possible conditions will; this does not only apply to falls in which the body weight of the skier comes into play, but also in the case of falls in which the body weight remains ineffective,

209853/0702

41 428

-17- 222750G

as well as with all combinations of such types of falls »Da das Bearing 40 is arranged approximately below the center of gravity of the skier, 7 also ground the pairs of forces that act on acceleration forces and the body weight of the runner is to be added, reduced, in the case of forward falls to one more explanatory way reduced to a minimum »

The compressible filling material 17 cooperates with the side flanges protruding downward from the sole plate 16 so that the penetration of snow and / or ice into the space between the ski and the sole plate is largely prevented, so that the freedom of movement of the sole plate is not is impaired and the sole plate can tilt and rotate unhindered _o In particular, the front end of the sole plate can move downwards unhindered in the event of a frontal fall, since there are no fixed positions under the sole plate in front of the joint column and in the angular area that is required for releasing frontal stems rigid components are present.

If the skier's body leans forward a small amount such that a small forward torque occurs, the force exerted by bolt 128 on ramp 98 prevents the ski boot from pivoting forward. In a forward tilt of the body of the skier is substantially the entire body weight is supported by the bearing 40, which is below the center of gravity of the body, so that the influence of the body weight is reduced to the tripping operation in a forward fall to a minimum _0, when the stalling torque via If the value is increased beyond the value chosen to release the binding in the event of a forward fall, the boot 10, together with the sole plate 16, can pivot in a counterclockwise direction as shown in the drawings. Here the boot and the sole plate rotate around a pitch axis that runs horizontally and at right angles to the longitudinal axis of the ski. When turning forward, the pitch axis is shifted slightly

209853/0 70 2

41 428

to, back. This rotating or pivoting movement can be on best describe when viewing the hinge plate 30 in terms of its mechanical equivalent in which it is a vertical circular cylinder that is connected to the Soleplate 16 forms a unit and protrudes downward from it, the front pin of this circular cylinder is formed by the ease 34, in the case of the mentioned second Position, the side surfaces of the rabbit 34 touch the walls 50 and 54 of FIG. 2a, and the bearing at the lower end of the The circular cylinder is supported on the lethal plate 28. The boot 10 is thus located together with the soleplate 16 above the metal plate 28 and the ski in unstable equilibrium, the parts mentioned are supported on the metal plate and they are stabilized by the forward force exerted by bolt 128 to make the circle * Push the cylinder into the bearing bracket of the joint column 42. If there is a turning movement to the front, play different processes take place at the same time. The rear end of the soleplate 16 is raised, while its front end is pressed down. The nose 34 carries out a sipping movement, so that the bearing 40 is pivoted and to the rear while the top surface of the lug 32 slides forward slid When the nose 34 tilts forward, the front end of the bearing 40 is supported on the metal plate 28, and the contact between the cylinder and the bearing bracket on two lines goes down into a contact on two downwards moving points over. While this tilting movement takes place, a clearance is created between the upper face of the approach 32 and the overhanging section 57 of the joint column 42 "

If before the described tilting movement forward, the upper end face 32 of the cheese 34 on the overhanging portion 57 rests and a side surface of the nose in contact with one of the contact surfaces 50 and 54 is what the corresponds to the first position described, the first effect of a forward tilting movement is that the

209853/0702

41 428

Approach 32 compared to the overhanging section 57 according to Moved below Then both side surfaces of the rabbit touch the V / & nde 50 and 5 ^ »and the tilting movement continues in the manner described with respect to the second position.

In the event of a forward fall, the binding is released when the bolt 128 slides off the ramp 98. Working together of the bolt 146 and the recess 102 play only an insignificant role in a forward fall, γ / enn die Friction between the bolt 102 and the walls 102a and 102b is minimal, and once the binding occurs in a head-on fall is triggered, the bolt 146 moves down from the opening on the underside of the recess 102 out <, The The walls of the recess 1C2 are inclined so that they do not hinder the release of the binding in the event of a head-on fall » As soon as the bolt 128 slides off the ramp 98, it can rotate the boot 10 forward unhindered. Here is the boot is released together with the soleplate opposite the metal plate 28, but the soleplate remains with it the Lletallplatte connected by the suspension line 62 while In such a frontal fall, the strip 17 is compressed when the binding is released. At the same time the Release pin 128 pushed backwards, the associated spring 142 being compressed.

"When the skier applies a rearward-acting eipping torque in excess of a predetermined amount to the binding, the hinge plate 30 moves rearwardly as the inclined upper face of the lug 32 cooperates with a cam effect with the corresponding inclined lower surface of the overhanging portion 57, and this movement takes place, contrary to come through the bolt 146 and applied forces, until the lug 32 is disengaged from the overhanging portion 57, so that the hinge plate is released by the hinge pillar 42 30 _Q

209853/0702

41 428

Thereafter, the further backward tilting movement causes the soleplate 16 to pivot about the rollers 76 and Fig. 7S, bearing 40 protruding from the metal plate 28 lifts off and the approach 32 on the overhanging section 57 moved past upstairs

If a counterclockwise torque due to a twisting fall occurs while the rabbit 34 is in contact with the walls 50 and 54 and the bearing 40 is supported on the metal plate 28, the hinge plate 30 is forced to move counterclockwise to rotate about the axis of the eye C, this specification being valid for the pail that the joint column 42 is viewed from above. Here, the bolt 146 applies a torque to the wall 102b of the recess 102, since a resistance is opposed to this rotational movement. If the torque in a twisting fall is sufficient, the soleplate 16 continues to rotate counterclockwise, and in doing so, the wall 102b slides over the bolt 146, compressing the spring in the lower bushing 118 ”. This has the effect that the bolt 146 increases the torque which opposes a rotational movement of the sole plate a resistance. If the torque is sufficient for a twisting fall, the ski boot is released because the bolt 146 comes out of engagement with the recess 102 _o the between the bolt 128 and the friction caused by the ramp 98 it touches is so slight that it does not affect the release effect of the binding in the event of a twisting fall "

During a twisting fall, rollers 76 and 78 run over the bearing surface 66, and the hinge plate 30 is through the low-friction bearing 40 is supported so that the rotational movement is only very little influenced by friction also the axes 72 and 74 of the rollers in FIG 2 are arranged at an angle to one another, the rollers move in the event of a twisting fall along an arc whose center of curvature approximates

209853/0702

41 428

shirt coincides with the vertical axis G, so that the Shells can rotate freely and no sliding movements between the rollers and the bearing surface 66 occur

If as a result of a twisting fall in the second position, in which the upper end face of the extension 32 is in contact with the overhanging section 57 and part of the nose 34 rests against the wall 50, a counterclockwise torque occurs, the vertical axis is displaced C, which coincides with the axis of curvature of the nose 34, somewhat to the side and backwards compared to the point at which it would be if parts of the nose 34 lying opposite one another touched the walls 50 and 54.

If the binding has been completely released in a twisting fall, the lanyard 62 prevents that the ski 12 completely separates from the boot 10, and in doing so it passes through the lanyard onto the sole plate 16 exerted force to apply a force in such a way to the relevant part of the foot of the skier is to avoid any strain in the best possible way o It also enables the lanyard to be attached to the middle part of the sole plate 16 the ski, with a minimum length of the lanyard out of engagement with the rear and to come to the front end of the ski boot »

Since operating bearing surfaces with low Eeibung used to accommodate the body weight of the skier, and since only small contact areas between the hinge plate and the ^ elenksäule are present, the response of the ski binding is or _0, the trigger behavior is not significantly affected by Eeibung, and therefore is hereby a! »disadvantage of some well-known ski bindings avoided. Furthermore, since the bearing 40 lies under the skier's center of gravity, the release behavior of the ski binding in the event of a head-on fall is not influenced to a noticeable extent by the weight of the skier and the pairs of forces occurring during the fall.

209853/0702

41 428

Furthermore, since the release device and the ski binding have no components, the movements of the front end of the ski boot, there is no risk of the skier being injured by having a ski boot caught on any such obstacle after the ski is released by the binding.

In the ski binding according to the invention, the release points not influenced by acceleration forces, the body weight of the runner and the force pairs that occur. aside from that the friction that is effective in twisting falls is reduced to a minimum, as the weight of the skier is reduced by bearings which help the binding to respond precisely to the set value in the event of twisting falls permit. Another important feature of the invention is in that it is possible to reduce the torque that must be applied in order to disengage the bond in the event of a twisting fall cause can be varied independently of the torque that must be effective to the binding in a twisting fall trigger, and vice versa; this is not possible with many of the previously known ski bindings.

Finally, it should be noted that in the ski binding according to the invention, the front part of the sole plate can move freely with respect to the ski, and that there are no obstacles at the front end of the ski boot, which impair the proper! function of the ski binding when released »

Patent claims:

Claims (1)

Claims 1J ski binding with a device for attaching a Ski boot part on a ski part, marked by holding parts (30,42) which are arranged between the front and the rear end of the ski boot (10) and together the ski boot with the fastening device (16,18,20) (10) at a distance from the ski (12) and allow pivoting or rotating movements of the ski boot in relation to the ski around a frontal fall axis and a torsional fall axis (C), with the frontal fall axis and the torsion camber axes are closely adjacent to one another. 2. Ski binding according to claim 1, characterized in that one with the holding parts (30, 42) Belongs to low friction support that rotatably supports the ski boot (10). 3. Ski binding according to claim 2, characterized in that to the afflicted with low friction Support includes a bearing (40) which is arranged approximately below the center of gravity of the skier. ι 4. Ski binding according to claim 3 »characterized in that the working with low friction Support also a roller (76,78) for supporting the rear part of the ski boot (10) and a surface (66) having a tread for. the role forms. 209853/0702 41 428 5 ο ski binding according to claim J, characterized in that the working with low friction Device is designed so that it supports the ski boot (10) so that the middle part of the ski boot opposite the ski (12) is arranged elevated, and that the front part ^ of the ski boot is freely movable downwards. 6ο ski binding according to claim 3, characterized in that the device operating with low friction includes a component (30) which is designed so that it can be fixed in order to assume a certain position relative to the ski during skiing that this component is extends downward from the ski boot (10), that the bearing (40) is arranged at the lower end of this component, and that a component (42) which is stationary with respect to the ski or a component (28) of the ski is present which a portion (34) so receives the first mentioned component, that the component is first mentioned a high or D _r ehsturzachse (C) is rotatable. 7. Ski binding according to claim 6, characterized in that the receiving component (42) according to extends up in the direction of the ski boot. 8. Ski binding according to claim 7 »characterized in that the receiving component (42) has a recess (46) for receiving a section (34) of said component (30) 9ο ski binding according to claim 8, characterized in that the recess (46) ^{is delimited by two mutually inclined, mutually facing, vertical contact surfaces (50, 5 2} O, separated by a distance, which one during normal skiing Support section (34) of said component (30) » 10. ski binding according to claim 9, characterized in that said component (30) has a nose 209853/0702 41 428 (34 ·) has that this nose ei & e substantially cylindrical Eorm has, and that the central axis of the hare coincides with the rotation lintel axis (O). 11. Ski binding according to claim 10, characterized in that said component (30) has an upper End face (32) and * has a lower end face (40), and that the rabbit (34-) is between these end faces extends. 12. Ski binding according to claim 11, characterized in that the rear end of each contact surface (50, 54) of the recess (46) has a vertical introduction wall (48, 52) that these introduction walls are opposite each other, and that they include an angle which is greater than that of the contact surfaces included angles. 13 «Ski binding according to claim 10, characterized in that said component (30) has a cam surface (32), and that the receiving component (42) is provided with a contact surface with which the cam surface is in contact during normal skiing 14. Ski binding according to claim 13, characterized in that the Aufnähmebauteil (42) has an overhanging Has section (57) which has a lower end face, and that said contact surface through a part of this lower end face is formed. 15. Ski binding according to claim 14, characterized in that the contact surface of the receiving component (42) and said cam surface (32) are arranged parallel to one another during normal skiing _o 16. A ski binding according to claim 6, characterized in that the operating device additionally low Keibung (76 78, _n) a roller for U terstützen of the rear part of the ski boot and a tread (66) 209853/0702 4-1 428 2277500 for "the Bolle has 17. Ski binding according to claim 16, characterized in that a device (72, 74) is present is that allows the Holle (76, 78) to move along an arc of a circle on the during a twisting fall Bearing surface (66), and that the center of curvature of this circular arc lies on the torsion lintel axis (C) » 18ο ski binding according to claim 6, characterized in that devices (128, 146) for applying of forces that are variable as required are present, which said component (30) in engagement with the recess (46) Pre-tension the receiving component (42). 19. Ski binding according to claim 1, characterized by a device (17) »which prevents the Function of said components (30, 42) is impaired by ice and / or snow. 20. Ski binding according to claim 6, characterized in that devices (128, 146) are present are to hold the ski boot (10) relative to the ski (12) in a predetermined position as long as a predetermined one Value of a prontal camber torque and a predetermined one Value of a twisting fall torque is not exceeded, and that these facilities compared to the ski boot Release the ski as soon as the predetermined value of the frontal camber torque is reached or the predetermined value of the camber torque is exceeded. 21. Ski binding according to claim 20, characterized in that the device for holding the Ski boot (10) includes a force-absorbing device (84-) which can be fixed with respect to the rear end of the ski boot is, and that means (128, 146) for applying variable forces as required to this means are ο 209853/0702 4-1 4-28 22. Ski binding according to claim 21, characterized by g e k e η η draws, that at least one component (128, 14-6) belongs to the devices for applying forces that a force is applied to the force absorbing device (84 ·) ο 23 ". Ski binding according to claim 22, characterized in that the force absorbing device (84)
an arrangement (102) for regulating the maximum turning camber torque aufy / eist, and that the means (14-6) for
Applying a force is assigned a device which serves to apply a force that is variable as required to the device for regulating the maximum torsional camber torque. 24-. Ski binding according to claim 23j, characterized in that the device (1C2) for regulating the maximum torsional camber torque is open at its lower end and has forwardly converging side walls (102a, 102b), and that the device or the component (14-6)
for applying a force is designed so that it exerts a force on these side walls. 25 · Ski binding according to claim 24 ·, characterized in that the component for applying an IC force is a twist protection bolt (14-6) which during normal skiing the mentioned side walls (1C2a, 1C2b) in
touches a substantially horizontal plane. 26ο ski binding according to claim 21, characterized in that the force absorption device (84)
an arrangement (98) for regulating the maximum head-on camber torque, and that in addition to the device for applying a force that is variable as required to this arrangement, a component (128) is suitable for applying an adjustable force to said arrangement. 209853/0702 41 428 27 · Ski bindings after. Claim 26, characterized in that the arrangement (98) for regulating the maximum head-on camber torque is open on both sides. 28. Ski binding according to claim 26, characterized in that the arrangement for regulating the maximum Frontal camber torque an open on both sides Ramp (98) belongs, which is inclined backwards and downwards, and that the component for applying a force is a frontal fall protection bolt (128) to apply a force to the ramp is " 29 ο ski binding according to claim 28, characterized in that a device (142) is provided which makes it possible to increase the force applied to the ramp (98) by the frontal fall protection bolt (128) as required vary. Ski binding according to claim 21, characterized in that in addition to the force absorption device (84) an arrangement (102) for regulating the maximum camber torque and means (98) for regulating the maximum head-on camber torque associated with the means for Applying a force that is variable as needed includes a component (146) that is used to apply a force that is variable as needed to apply to the arrangement for regulating the maximum twisting camber torque, as well as a component (128) for applying an as required variable force on the arrangement for regulating the maximum frontal camber torque, and that the. both of the above-mentioned arrangements are arranged vertically one above the other « 31 «Ski binding according to claim 30, characterized in that the arrangement (102) for regulating the maximum torsional camber torque is open at its lower end and forward-converging side walls (102a, 102b) comprises that the associated component (146) is designed so that it applies a force to these side walls, 'that 209853/0702 41 '428 the arrangement for regulating the maximum fall torque is open on both sides and has a downwardly and rearwardly inclined ramp (98), and that the associated Component (128) for applying a force is set up so that it applies a force to the ramp. 32ο ski binding according to claim 31 »characterized in that the component for applying a Force on the ramp (98) a front fall protection bolt (128) and the component for applying a force to the side walls (102a, 102b) is a fall protection bolt (146), and that the two bolts are arranged one above the other. 33. Ski binding according to claim 32, characterized in that the receiving component (42) is upward extends in the direction of the ski boot (10). 34. Ski binding according to claim 33 | characterized in that the receiving component (42) has a recess (46) for receiving a section (34) of said component (30). 35 · Ski binding according to claim 34, characterized in that the recess (46) runs through two a distance separated, mutually inclined, mutually opposite vertical contact surfaces (50, 54) adjoined which, during normal skiing, serve to support a portion (34) of said component (30). 36. Ski binding according to claim 35 »characterized in that said component (30) has a nose (34) has that the nose is essentially cylindrical, and that the central axis of the nose is the position of the rotational camber axis (G) determined. 37. Ski binding according to claim 36, characterized in that said component (30) has a cam surface (32), and that the receiving component (42) is provided with a contact surface with which during the normal 209853/0702 41 428 When skiing, the mocking surface is in contact. 38. Ski binding according to claim 37 »characterized in that the receiving component (42) has an overhanging Has section (57) which has a lower end face, and that the aforementioned contact surface with this lower Frontal area coincides. 39 · Ski arrangement with a sole plate for attaching a ski boot, a ski and one to the underside of the Sole plate and the suspension line which can be fastened to the ski, characterized in that the suspension line (62) has a has such a length that the ski (12) attached to the front and rear ends of one of the sole plate (16) Ski boots (10) can move over. 40. Ski arrangement for a ski with which a ski boot can be releasably connected by means of a safety binding lets, wherein the arrangement includes a lanyard which has a first section attachable to the ski and a second section has, characterized in that a device (60) is present which serves to the second section of the suspension line (62) on the underside of the ski boot (10) under the center of the foot of one of the To attach the person wearing boots » 41 ο Ski arrangement with a device for fastening a ski boot on a ski, characterized in that the fastening device is a for Receiving frontal fall forces serving arrangement (98), which is opposite the rear end of the ski boot (10) can be arranged in a stationary manner, as well as a component (128) for applying a force that is variable as required to the said arrangement, and that there is a separate arrangement (102) for absorbing the forces occurring during twisting falls is, which can be arranged in a stationary manner opposite the rear end of the ski boot, and to which a component (146), which is used to make a variable as required 209853/0702 41 4-28 To apply force to the latter arrangement » 42. Ski arrangement according to claim 4-1, characterized in that the arrangement (98) for receiving Frontal fall forces and the arrangement (102) for absorbing are arranged one above the other by twisting force. 4-3 «ski arrangement according to claim 4-1, characterized in that the arrangement (102) for receiving Turning camber forces is open at its lower end and has converging side walls (102a, 102b), and that said Component (146) serves to apply a force to these side walls. 4-4-. Ski arrangement according to claim 4-3, characterized in that the device for receiving Turning fall forces is a bolt (146) which the said side walls (102a, 102b) during normal skiing in touches a substantially horizontal plane, and that this bolt is associated with a device that does this serves to vary the force applied by the bolt to the side walls as needed. 45ο Ski arrangement according to claim 41, characterized in that the arrangement for absorbing frontal fall forces is open on both sides and has a downward and backward sloping Eampe (98) " 46. Ski arrangement according to claim 45, characterized in that the component for applying a Force is a frontal fall protection bolt (128) which exerts a force on the Eampe (98), and that this bolt a Means (142) is assigned, which makes it possible to vary the force applied by the bolt on the ramp. 47ο ski arrangement according to claim 44, characterized g e k e η η ζ e, i c h η e t that the arrangement for receiving 209853/0702 41 428 Frontal fall forces on both sides open, and one has downward and rearward sloping ramp (98) » 48. Ski arrangement according to claim 47, characterized in that the device for receiving Frontal fall forces is a bolt (128) that applies a force the ramp (98) exerts, and that this bolt has a device (142). to vary the by the bolt on the ramp is assigned to the force exerted. 49 »Ski arrangement according to claim 48, characterized in that the two bolts (128, 146) are one above the other are arranged. 50. ski arrangement with a device for attaching a ski boot to a ski, characterized in that, that the fastening device includes a device which serves to hold a ski boot (10) against + over the To hold the ski (12) in a predetermined position as long as a predetermined value of a frontal fall torque and a predetermined value of a twisting fall torque is not exceeded, and the connection between the ski boot and the ski} .öst as soon as the predetermined value of the Turning camber torque or the predetermined value of the frontal camber torque is exceeded, and that to the device To hold the ski boot in place, a component (84) which is fixed in relation to the ski boot and which absorbs forces is part of it, furthermore components (128, '146) which apply forces to said component in order to prevent movements of the ski boot during The occurrence of head-on and turning-camber torques unite Oppose resistance and means (142) for varying the ratio between the force exerted by a Counteracts movement as a result of a Frojtal camber torque, and the force exerted by motion due to twisting camber torque counteracts » 209853/0702 Blank page