DE2202197A1 - TOE FOR SAFETY SKI BINDING - Google Patents

Description

DR. INQ. HANS LICHTI - DIPL.-INQ. HEINER LICHTI

PATENT LAWYERS

KARLSRUHE-DURLACH ■ QRÖTZINQER STRASSE 61

2202197 2297/71

Ik * January 1972

TELEPHONE (07Ji) 4 11 24

Willy Suhner, CH 5200 Brugg / Switzerland Toe piece for safety ski binding

The invention relates to a toe piece for collateral Ski bindings with a four-bar linkage held by resilient means in a central position, comprising a Sole holder 1 has a base and two handlebars connecting these two, the base around one to the running surface of the ski vertical axis is pivotable and has a lock with parts fixed to the ski, which can be released by lateral movement of the sole holder.

From a toe piece for safety «ski bindings requires that the part in contact with the toe of the shoe, the so-called sole holder, has horizontal forces across it »On the longitudinal axis of the ski up to an adjustable amount, initially rigid, then resilient, when this amount is reached

3098U / 0706

OftlGlNAL INSPECTED

~> - 2297/71

but the toe force-free as possible releases _o

It is known (DT-OS 1578702), the sole holder in such a way resilient with a rotatable around a vertical axis, but initially to connect the support piece locked with parts fixed to the ski, that when the set force is reached the lock is released, whereupon the support piece together with the sole holder rotates so that the toe of the shoe is released.

It is also known to use the sole holder as a coupling of a four » to train the joint.

The invention is based on the task of providing a front » bake with the features mentioned so that the notching takes place suddenly, through snow, ice or dirt is not impaired and requires as little friction work as possible, furthermore so that the reinsertion pawls can be effected without any significant effort,

This object is achieved according to the invention by a pivotable one about an axis, in the locked state cams that are fixed around the ski and are in a form-fitting connection with the sole holder via a lever arm, pawl acting on two opposite sides »

The subject matter of the invention is described below with reference to in

the drawing illustrated examples of execution explained,

Show here:

Fig. 1 is a plan view of a toe piece in Middle position {

Fig. 2 is a section along line II-II in Fig. 1}

309 * 14/0706

~ 3 - 2297/71

Fig. 3 is a section along line III-III in Figo 2 | Figo k shows a section along line IV-IV in Figo 2 and

FIG. 5 shows a section analogous to FIG. 2 through a different embodiment

A base plate 1 having a cam 2 (not shown) by means of bolts 3 on the ski mounted _o A bolt k with a collar 5 is formed in a bore 6 of the base plate 1 is rotatably and a support piece 7 »part of the four-bar linkage, riveted The collar prevents the bolt 4 from falling out o Around bolts 8, 8 ^r riveted in the support piece, handlebars 9 «9 * are pivotably arranged, to which in turn a sole holder 10 is hinged by means of bolts 11, 11 *» The sole holder 10 has a fork-shaped shape Extension 12 to "The four-bar linkage consisting of the support piece 7i the handlebars 9" 9 * and the sole holder 10 is held in a central position on the support piece 7 by a compression spring 15 supported by mushrooms 13 and 14 that can slide into one another a pawl 17 is also pivotable about a bolt 16, which engages around the cam 2 with claws 10,18 * and has a cam 20 on an extension 19 acting as a lever, which in turn is encompassed by the fork 12 ₈ Xn d The position shown is the support piece 7 via the extensions 18, the latch 17 is locked to the base plate 1

If the sole holder 10 is against the force of the spring 15 pretensioned to a desired value, for example

pushed upwards in FIG. 1, the fork pivots the pawl 17 about the axis of the bolt k as long as im

Counterclockwise (downwards) until the claw 18 from

ioain / 0706

Cam 2 slides, whereupon the support piece 7 together
all parts attached to it or the entire corner can also turn counterclockwise around the bolt k and thus release the toe of the shoe »

The contact surfaces 21,21 'are expediently

formed as sectors of a circular cylinder which is concentric with the bolt 16 in the locked position

So that the spring I5 does not have to be actuated when re-latching, which is done by hand, the vicinity of the bore 6 is provided with bevels 22 and 23, which allow the support piece 7 by a certain amount from the position shown in FIG. 2 clockwise to tilt against the action of a weak leaf spring 2k _o

Inclined surfaces 25, 25 'on the claws Io, Io' cause this pivoting of the support piece 7 "as soon as they hit the cam 2 when they are re-latched, when the central position of the support piece 7 is reached, the pawl 17 then snaps with the claws l8, lii ¹ under the action of the spring 2k about the cam 2 in the in Figo k shown Lagο ο the same effect could be achieved when the pawl 17 "as shown in Figure" 5, on the axis 16 against the action of a spring would be displaced 26, but only when the axis 16 perpendicular to the ski · - _v but that the Vordeibacken _s are when no i'tJiuh divides into the binding, "high without effort by hand and swung surface extends · _c the variant shown in Figo 2 has the advantage can (z "H _u during assembly), while in. dchrauchsziistand the Hoc Iu. swivel «n durtb <ii» sole (iep ski boots is prevented

it is obvious «that the

30 98 U / (J 7 0

- 5 - 2297/71

The less the practice arboit brings ₍ j * ■ less the claws l <i , Io ^f utnl the surfaces 2I _- 21 ^! overlap in the latched position,

I ¹ Is the ivrä ft nv erlui 1 Ln i fhh> diu-cJi increasing the length ilüs lever 19 can be varied as desired ο

30 3 3 ) W0 7UU

Claims (1)

- 6 - 2L2V7 / 71 Claims lo / toe piece for safety ski bindings with a by a FederKrait in a central position fixiex'teu Four-joint, dna consists of a sole holder, a base and two connecting rods, whereby the base around a perpendicular to the running surface of the ski! Axis is pivotable and a by lateral movement de;) Solcnhalter releasable locking with ski-fixed Has parts, characterized in that the lock \ oii a pivotable about an axis * (l6), in the trickled state a ski-fixed cam (.2) encompassing un.l in the loose state of this Ireikommendeii Pawl (17) is formed » Front jaw according to claim 1, characterized in that dali the pawl (17) via a lever arm (t ')) with the sole holder (10) is positively connected » 3 »Vonliirlmtkon according to claim 1 or Li ₁ characterized by il.» I ^% . the sporrk left (l /) on both sides of the skilusten cam (2) has claws (13, Ij ') arranged over it, of which, depending on the BfWMguiigsr ichtuny, de;> .iohl enhal ters (Io) at Lrreiilun «les AuslüsepunL t es di «· one ο · 1πι · other than liiny, rii.'i with" learn No (kiu ( Ί) koi.iiiit " ¹ I. A front clamp assembly according to any one of claims t toward 3i characterized in that the zusainmenwirkeiulen with the claw (Id, 18 ·) surfaces (21, 21 '), 0 üiti ^ a 1 age of the ski solid Noduiti (2) segments of the Veiiici' with i \ ci 309814/0706 - 7 ~ 2297/71 The pivot axis (l6) of the pawl (17) is concentric Cylinder yindo 5 «toe piece according to one of claims 1 * - k , characterized in that the claws (18, lö ') to facilitate the locking inclined surfaces (25, 25')» the pawl (17) when running on the ski-fixed cam (2) raise approximately in the direction of their pivot axis, so that it can be guided over the cam into the locking position ο 6β toe piece according to claim 5 »characterized in that the base (7) of the four-bar linkage (7, 9 _s 9 ^f , 10) can be tilted about an axis approximately parallel to the running surface _{or the like} S · 7 in front clamp assembly according to claim 5 characterized in that the pawl (17) along its pivot axis (16) is displaceable against the action of a spring (26) ₀ 3098U / 07U