US3628803A - Resilient locking device for security ski bindings - Google Patents

Resilient locking device for security ski bindings Download PDF

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Publication number
US3628803A
US3628803A US854367A US3628803DA US3628803A US 3628803 A US3628803 A US 3628803A US 854367 A US854367 A US 854367A US 3628803D A US3628803D A US 3628803DA US 3628803 A US3628803 A US 3628803A
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United States
Prior art keywords
cam
locking device
jaw
profile means
resilient locking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US854367A
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English (en)
Inventor
Georges P J Salomon
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Individual
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Individual
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0847—Details of the manual release
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0841—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable with a single jaw
    • A63C9/0842—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable with a single jaw the jaw pivoting on the body or base about a transverse axis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/084—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings with heel hold-downs, e.g. swingable
    • A63C9/0846—Details of the release or step-in mechanism
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/0805—Adjustment of the toe or heel holders; Indicators therefor

Definitions

  • front or rear security ski bindings in which the locking mechanism comprises an assembly of movable pieces, execute a resilient stroke under the bias of a spring, and that said resilient travel takes place before the lock is released.
  • the curve of the forces which hold the sole of the boot versus the vertical displacement of the boot is either indefinite as in the case of French Pat. No. 1,516,224 filed on Jan. 25, 1967 or specific and well defined as in French Pat. No. 1,371,727 filed Oct. 21, 1963 which states; the force of the spring acting on the holding pieces remains constant until the release takes place.
  • the present invention therefore proposes to overcome the above disadvantages in a simple and efficient manner.
  • the device according to the invention will permit a decrease of the force holding the sole during a resilient period, while keeping the same value for the force of release. For a given amount work, it will therefore be possible to increase the vertical displacement of the sole before releasing the binding.
  • the vertical displacement of the sole before said releasing in the system according to the invention, will be three times as important as in the already known systems. The result is that the holding force during a resilient period should be three times as weak as the stress required for releasing.
  • the increase of the vertical displacement will permit the use of the binding with ski boots having various sole thicknesses with or without a layer of snow unintentionally accumulated between the upper face of the ski and the lower face of the sole of the boot.
  • the reduced holding force during the resilient period, or the force required to hold the sole of the boot is sufficient for skiing on snow.
  • the purpose of the invention is therefore to adapt known means, such as a ramp or a cam in contact with a ball, roller or piston in order, to obtain a curve of the force of release in which the force to hold the sole, during the resilient cycle, is substantially lower than the force required to hold the sole when the binding is released.
  • FIG. 1 represents in Cartesian coordinates, the various curves of the forces versus the strokes for various devices.
  • the forces are represented in ordinates Y, the strokes in abscissae
  • FIG. 2 represents a side view of the device according to French Pat. No. 1,371,727;
  • FIG. 3 represents a side view of the device according to the invention.
  • FIGS. 4, 5, 6 and 7 represent, as nonlimitative illustration, a few variations in the cam arrangement of the present invention.
  • Broken lines represent the profile for a positive (angle of attack defined below) which creates a return effect.
  • the profile with a negative, thus creating an escape efiect is shown in full line.
  • On the surfaces P, which present the rising of the cam, a is increasing.
  • FIG. 8 is an embodiment of an industrial realization of the invention incorporating a modification whereby after release of the security binding, a return to the initial position is permitted without a return along the profile of the cam;
  • FIG. 9 represents a control means for the system which shunts the profile of the cam.
  • the curve EFF'40 G has been drawn up in accordance with French Pat. No. 1,371,727 prior to the proposed invention.
  • the curve ABCC' was set in accordance with the invention.
  • the upper portion C defines the point of release which has the same value as in the curve according to French Pat. No. 1,371,727.
  • the portion AB has an ordinate value lower than either FF or BC and characterizes the reduced holding force during the resilient cycle. The substantial increase of the force in BC produces the point of release.
  • the work remains the same; the area OEFF" is equal to the OABBC' but in the case of the invention, there is a greater displacement or resiliency reserve since 0C is greater than OF.
  • FIGS. 2 and 3 illustrate the action of a jaw l pivoting about a fixed axis 2, under the action of a ball, roller or the like 3.
  • the jaw l is submitted to the force of a spring 6 by means of a link, lever or the like 4 solid with the roller or the like 3, which is freely rotatable about the element 4, the latter pivoting about a fixed axis 5.
  • the profile defined in French Pat. No. 1,371,727 serves to assess the variation of the angle a, which will hereinafter be called angle of attach, of the roller on the profile of the jaw and will be defined as follows: angle formed by a line perpendicular to the profile, at the bearing point under consideration, and the radius of the cam at this bearing point.”
  • the angle a varies from E to F in order to compensate for the increase of the force of the spring as it is compressed. This is accomplished by a decrease of the distance 1, which varies as a decreases. In this manner, the force increases and the distance 1 decreases so as to keep constant the torque acting on the jaw. Beyond F for the shapes Fl-I or FG, 11 is smaller than a, and could even reach zero to cause a force which is positive or equal to zero, such as shown in FIG. 1 by FG or F"I-I.
  • the jaw 1 used to retain the heel rotates about the fixed axis 2.
  • the axis 5 is solid with the jaw l and allows the cam 4, which is used to restore the original holding position, to rotate when the jaw l is submitted to a force by the boot.
  • This rotation is transmitted by means of the spring 6 which is permanently supported on the jaw 1.
  • the cam profile according to the invention can be retracted by means of a device as represented in FIG. 9. However, this profile is shaped on a movable piece 8 which pivots about an axis 11 solid with the return cam 4.
  • the presence of the retractable stop 7 serves to operate the security device since it contacts the retractable cam 8 and holds it against the roller or the like 3 which is solid with a screw 12.
  • the screw 12 indirectly permits an adjustment of the spring 6.
  • the nut 13 is used to keep the screw 12 stationary in rotation in order to keep the above adjustment constant.
  • the presence of the spring 9 is responsible for the fact that the cam 8 always tends to come back to a working position.
  • FIG. 9 The device which allows the cam 8 to be retractable is represented in FIG. 9 in the working position of said cam.
  • the cam 8 abuts the stop 7, which is solid with a lever 14 the latter pivoting about an axis 15 which is always maintained in position on the return cam 4.
  • the support of the cam 8 on the stop 7 is obtained when the stop 7 enters the orifices 18 provided in the cam 4 and when the spring 17 pushes the lever 14 to then permit by pivoting the introduction of the: stop 7 in the orifices 18.
  • a resilient locking device for a security ski binding comprising:
  • said cam surface including a first profile means for producing a substantially constant first rate of change of retaining force on said jaw as said member and said cam undergo initial relative movement
  • said cam having a second profile means for producing on said jaw a retaining force increasing at a second rate of change which is greater than said first rate of change as said member and said cam undergo final relative movement before release of the binding.
  • said cam and said jaw are integrally joined.
  • a resilient locking device as defined in claim I wherein said member is swingably mounted on a fixed axis, said spring cooperating with and urging said member against said cam, said member including a rotatable roller thereon, said roller engaging said cam surface.
  • a resilient locking device as defined in claim 1 wherein said first profile means is connected to said second profile means to form an abrupt juncture therebetween whereby said retaining force will be suddenly increased when said member moves from said first profile means to said second profile means.
  • a resilient locking device as defined in claim 1 including means associated therewith by bypassing the effect of said cam whereby saidjaw, after release, may be easily returned to a position for retaining a ski boot on a ski.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US854367A 1968-09-06 1969-09-02 Resilient locking device for security ski bindings Expired - Lifetime US3628803A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR74001068 1968-09-06

Publications (1)

Publication Number Publication Date
US3628803A true US3628803A (en) 1971-12-21

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ID=9696005

Family Applications (1)

Application Number Title Priority Date Filing Date
US854367A Expired - Lifetime US3628803A (en) 1968-09-06 1969-09-02 Resilient locking device for security ski bindings

Country Status (3)

Country Link
US (1) US3628803A (enrdf_load_stackoverflow)
DE (1) DE1943962B2 (enrdf_load_stackoverflow)
FR (1) FR1587913A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2308536C2 (de) * 1973-02-21 1982-12-16 Geze Gmbh, 7250 Leonberg Auslösende Skibindung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2364620A (en) * 1942-09-25 1944-12-12 Ernest O Crocker Safety ski binding
FR1371727A (fr) * 1962-10-26 1964-09-04 Smolka & Co Wiener Metall Dispositif d'attache de sécurité pour fixation de ski
US3350110A (en) * 1965-08-25 1967-10-31 Georges P J Salomon Safety ski binding
US3391944A (en) * 1965-09-21 1968-07-09 Ever New Inc Ski boot heel binding device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2364620A (en) * 1942-09-25 1944-12-12 Ernest O Crocker Safety ski binding
FR1371727A (fr) * 1962-10-26 1964-09-04 Smolka & Co Wiener Metall Dispositif d'attache de sécurité pour fixation de ski
US3350110A (en) * 1965-08-25 1967-10-31 Georges P J Salomon Safety ski binding
US3391944A (en) * 1965-09-21 1968-07-09 Ever New Inc Ski boot heel binding device

Also Published As

Publication number Publication date
DE1943962A1 (de) 1970-03-12
FR1587913A (enrdf_load_stackoverflow) 1970-04-03
DE1943962B2 (de) 1979-11-08

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