US3617069A

US3617069A - Resilient attachment for skis

Info

Publication number: US3617069A
Application number: US695153A
Authority: US
Inventors: Georges P J Salomon
Original assignee: Individual
Current assignee: Individual
Priority date: 1967-01-04
Filing date: 1968-01-02
Publication date: 1971-11-02
Anticipated expiration: 1988-11-02
Also published as: CH481661A; DE1578927A1; AT290348B; US3823955A

Abstract

A resilient attachment for skis in which the resilient function of the attachment is obtained by means of a resilient assembly including a spring that ensures safety locking of the attachment. One of the ends of the spring receives, either directly or not, the mechanical action that ensures resiliency and the other end acts on the locking device of the attachment.

Description

United States Patent Inventor Georges P. J. Salomon 34, Avenue de Loverchy, Annecy, Haute- Savoir, France Appi. No. 695,153 Filed Jan. 2, 1968 Patented Nov. 2, 1971 Priority Jan. 4, 1967 France 89,992

RESILIENT ATTACHMENT FOR SKIS 3 Claims, 6 Drawing Figs.

Int. Cl...... A63c 9/084 Field of Search 280/1 1.35, 11.35 HA v [56] 5 References Cited FOREJGN PATENTS 240,755 6/1965 Austria 280/1135 246,628 4/1966 Austria 280/1135 1,463,974 11/1966 France 280/1135 Primary Examiner- Benjamin Hersh Assistant Examiner-John A. Pekar Attorney-Raymond A. Robic ABSTRACT: A resilient attachment for skis in which the resilient function of the attachment is obtained by means of a resilient assembly including a spring that ensures safety locking of the attachment. One of the ends of the spring receives, either directly or not, the mechanical action that ensures resiliency and the other end acts on the locking device of the attachment.

PATENTEnunv 2 um SHEET 10F 2 FIG. 2

FIG. 3

ilvvuvrok Georges R J. SALOMON I ATTOR m; Y

PATENTEUNnv 2 I97l SHEET 2 OF 2 FIG.4

IN VENI'OR Georgos P. J SAL 0M0 ATTORNEY RESILIENT ATTACHMENT FOR SKIS The present invention relates to improvements in resilient attachment for skis.

Resilient attachment for skis are known in which the resilient function is obtained by means of a spring or the like arranged in the kinematic chain of the mechanism. This arrangement most often requires an important volume that leads to bulky attachments.

The present invention proposes to overcome these disadvantages in a simple and efiicient manner.

According to the invention, the resilient function of the attachment is obtained by means of a plurality of resilient elements, for instance a spring that allows safety locking and in which one end receives, either directly or not, the mechanical action that provides resiliency and the other end acts on the locking device of the attachment, for instance by pressing a ball into an appropriate housing.

The invention will besides be better understood by the description that follows having reference to the appended drawings illustrating, by way of nonlimitative examples, the preferred embodiments of the invention.

FIGS. 1 and 2 areplan views, partly in cross section, of an attachment according to the invention shown in locking and releasing positions respectively;

FIG. 3 is a plan view, partly in cross section, of another embodiment of the invention;

FIG. 4 is a cross-sectional view of a rearward attachment made according to the invention;

FIGS. 5 and 6 are cross-sectional views of two other embodiments of rear attachments made according to the invention.

In FIG. I, the attachment 1 is held in locked condition by means of a piston 2 that a spring 3 presses against a flat surface of the articulation or pivot pin 6 of the said attachment. The opposite end of the spring does not bear against a stationary or mobile adjusting element but against a slidable sleeve or piston 7, itself bearing against a boss 8 of the jaw 9, the said jaw articulated or pivoted to the attachment by an axle pin 10.

During torsion stresses of the users boot along arrow 6 of FIG. 2, for instance, the jaw 9 through boss 8 pushes the sleeve or piston 7 to compress spring 3; if the torsion ceases, the reversibility of the aforesaid movements brings the jaw back into the position of FIG. 1. 0n the contrary, if the torsion forces increase, the said jaw drives the attachment 1 after the boss 8 has come against one or the other of the lateral walls of the bore in which the piston or sleeve 7 slides, the said attachment I only opening when the forces are sufficiently large to push the piston 2 back.

Because the compression force of the spring against the locking element is increased due to its precompression resulting from the prior rotation of the jaw 9, a spring of relatively small dimensions can be used.

In FIG. 3, the jaw as well as a locking member or crank 21 pivots on an axle pin 22 having a flat surface against which a piston 23 abuts, the latter being pressed by a spring 26 also pressing a ball 27 into a ball recess 28 of the said locking member or crank 21. Under abnormal torsion forces, the jawlocking member assembly may resiliently oscillate about the axle 22 by pushing piston 23 slightly back. If the forces increase, the locking member or crank 21 comes in abutment, through slot 29, against a stationary lug 30 and, in order to obtain release, the jaw must overcome the locking action of the ball 27.

In FIG. 4, a boot 3] is securely held on a ski 32 by a jaw 33 articulated on an axle 36 solid with a support 37. A crank or locking member 38 also pivots on axle 36. The said jaw may resiliently move by compressing a spring 39 of the locking system. If the forces increase, the crank or locking member 38 is driven by the jaw and releases the locking system which, in this instance, is a ball 40 pressed by the said spring 39. A screw 41 limits the movements of the jaw and allows its adjustment.

FIG. 5 only differentiates from FIG. 4 in that the jaw 46 does not act directly on the spring 47 but through a cam ramp 48 Epshing a ball 49 back, a second ball 50 serving to lock the loc mg member or crank 51 in relation to its support 52. In

FIG. 5 also, a screw 53 serves to limit and adjust the said jaw.

FIG. 6 is an adaptation of the mechanism described in FIG.

3 to a rear attachment. The resilient stroke is obtained by pressing a piston 60 back, jaw 61 driving a locking member or crank 62 through the locking of a ball 63. When the said locking member or crank comes against a lug 66 of a support 67, the jaw must overcome the locking action of the ball in order to be released.

Although specific embodiments of the invention have been described, it will be understood that the invention is not to be limited thereby but should only be construed from the appended claims.

lclaim:

l. A resilient attachment for holding one end of a boot onto a ski and to allow limited movement of the boot under a predetermined force applied by the skier and complete release of said boot from said attachment upon application of a force greater than said predetermined force, said attachment comprising:

a. a jaw for holding one end of said boot upon said ski, said jaw formed with a rearwardly extending boss;

b. a support fixed to said ski and having a baseplate formed I, with an arcuate top wall defining and including a ball recess;

c. a pivot pin extending across said support above said baseplate; said jaw mounted on said pin for pivotal movement thereof; I

d. a locking member mounted to pivot on said pin and having a portion extending beneath said jaw;

e. said portion formed with a bottom arcuate surface adapted to face said baseplate arcuate top and a bore therethrough between said jaw and baseplate;

f. spring means mounted in said bore to press on said boss;

g. means to limit pivoting of said jaw through said limited movement, and

h. a ball at the lower end of said spring normally fitting in said ball recess to prevent pivoting of said locking member and release of said jaw and boot until after said predetermined force is exceeded and said ball moves out of said recess.

2. A combination as claimed in claim 1 wherein said boss has a hole therethrough and is spaced from said locking member a distance such as to allow said limited movement, wherein said means to limit said jaw through said limited movement is an element projecting from said locking member and extending through said hole; said element having a head at the end away from said member to restrict movement of said jaw to said distance.

3. A combination as claimed in claim 1 wherein said means to limit said jaw through said limited movement comprises a cam ramp on said boss and a shoulder at one end of said ramp for abutment with said locking member when said jaw pivots through said limited movement.

a a a It u

Claims

1. A resilient attachment for holding one end of a boot onto a ski and to allow limited movement of the boot under a predetermined force applied by the skier and complete release of said boot from said attachment upon application of a force greater than said predetermined force, said attachment comprising: a. a jaw for holding one end of said boot upon said ski, said jaw formed with a rearwardly extending boss; b. a support fixed to said ski and having a baseplate formed with an arcuate top wall defining and including a ball recess; c. a pivot pin extending across said support above said baseplate; said jaw mounted on said pin for pivotal movement thereof; d. a locking member mounted to pivot on said pin and having a portion extending beneath said jaw; e. said portion formed with a bottom arcuate surface adapted to face said baseplate arcuate top and a bore therethrough between said jaw and baseplate; f. spring means mounted in said bore to press on said boss; g. means to limit pivoting of said jaw through said limited movement, and h. a ball at the lower end of said spring normally fitting in said ball recess to prevent pivoting of said locking member and release of said jaw and boot until after said predetermined force is exceeded and said ball moves out of said recess.