US3871673A - Ski boot heel binding - Google Patents

Ski boot heel binding Download PDF

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Publication number
US3871673A
US3871673A US426026A US42602673A US3871673A US 3871673 A US3871673 A US 3871673A US 426026 A US426026 A US 426026A US 42602673 A US42602673 A US 42602673A US 3871673 A US3871673 A US 3871673A
Authority
US
United States
Prior art keywords
lever
boot heel
jaw member
supporting block
link
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
US426026A
Other languages
English (en)
Inventor
Masahiro Murata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hope KK
Original Assignee
Hope KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hope KK filed Critical Hope KK
Application granted granted Critical
Publication of US3871673A publication Critical patent/US3871673A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • A63C9/007—Systems preventing accumulation of forces on the binding when the ski is bending
    • 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
    • A63C9/005—Ski bindings with means for adjusting the position of a shoe holder or of the complete binding relative to the ski
    • 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

  • ABSTRACT In a ski boot heel binding having a jaw member swingably connected with a supporting block on a base, a lever having a concave elongated along its front surface in the longitudinal direction thereof is pivoted to the supporting block and urged forwardly by a compression spring acting against the back thereof.
  • a compression spring acting against the back thereof.
  • a roll Provided in the elongated concave is a roll at one end of a rolling lever of which other end is pivoted to the lower portion of the jaw member, said roll rolling down along the elongated concave while the jaw member is moved up from the boot heel engaging position.
  • SKI BOOT HEEL BINDING This invention relates to a ski boot heel binding to be used in cooperation with a ski boot toe fixture.
  • ski boot heel binding As the pin at the rear end ofthe link horizontally retracts against the horizontal spring while the jaw member swings to the boot heel releasing position, the spring forces as well as the boot heel engaging force change in proportion to the upward thrust applied to the boot heel. Therefore, when an upward thrust not so strong to swing the jaw member be yond the dynamic production of the horizontal spring is increasingly applied to and eliminated from the boot heel, the jaw member engaging the boot heel will reciprocate due to vertical play of the link.
  • Such known ski boot heel binding is said to lack in elasticity or, to say other words, to absorb small amount of upward thrust energy.
  • the engaging force for the ski boot heel is solely determined by the spring force if the length of the link, pivoted to the jaw member and urged by the spring, is constant. Accordingly, the force of the compression spring has to be strong enough to obtain desired engaging force, which makes difficult to release the binding at will by users hand.
  • a main object of the present invention is therefore to provide a ski boot heel binding which has larger elasticity or absorbs a large amount of upward thrust energy until it is displaced to the boot heel releasing position.
  • Another object ofthe present invention is to provide a ski boot heel binding in which a predetermined engaging force can be obtained by a weaker compression spring.
  • Still another object ofthe present invention is to provide a ski boot heel binding which can be released at will with smaller force.
  • a ski boot heel binding comprising a base to be attached on a ski, a supporting block mounted on the base, a jaw member connected with said supporting block by link means to be moved up and down, a lever pivoted at the lower end portion thereof to said block and forwardly urged by a compression spring acting against the back thereof, said pivoted lever having at its upper portion of said concave of said lever in the boot heel engaging position and rolling down along the elongated concave below the dynamic production of said spring while said jaw member moves up from the boot heel engaging position.
  • FIGS. 1-3 are schematic side views each showing principles of a ski boot heel bindiing according to the present invention, in which the bindings in FIGS. 1-3 are respectively in the boot heel engaging position, boot heel moving-up position, and boot heel releasing position;
  • FIGS. 4-6 are partially sectioned side views each showing a ski boot heel binding according to an embodiment of the present invention, in which the hindings in FIGS. 4-6 are respectively in the boot heel engaging position, boot heel moving-up position, and boot heel releasing position.
  • FIG. 7 is a partially sectioned side view showing the same ski boot heel binding as those shown in FIGS. 4-6, in which an unlocking lever is operated, and
  • FIG. 8 is a schematic side view showing another ski boot heel binding according to another embodiment of the present invention.
  • the binding comprises a supporting block I mounted on a base plate 2 adapted for attaching on a ski and. a jaw member 3 for engaging with a ski boot heel (not shown).
  • the jaw member 3 is connected with the block I by link means such as a pair of links 4, 5 or side plates (not shown).
  • link means such as a pair of links 4, 5 or side plates (not shown).
  • a horizontal spring 8 is disposed in the block I behind the lever 6 and urges the latter forwardly about the pin 7.
  • the lever 6 has at its front surface a curved concave 9 elongated in the longitudinal direction thereof.
  • a rolling link 10 is pivotably connected at the fore end portion thereof with the lower portion of the jaw member 3 by a pin '11 and has a roll 12 at the other end portion thereof.
  • the roll 12 contacts with the upper portion of the concave 9 of the lever 6 and is arranged such that the pins 11 and 18 for connecting the jaw member 3 to the block 1 by means of the links 5 and the roll 12 form a triangle with the roll being the apex of the triangle in the boot heel engaging position.
  • the, rolling link 10 rotates in the clockwise direction and the roll 12 rolls down along the elongated concave 9 below the dynamic production of the spring 8.
  • the ski boot heel binding according to the present invention is so constructed that, in the boot heel engaging position, the force of the spring 8 is transmitted to the jaw member 3 as a downward rotary moment of the latter by means of the lever 6 and rolling link 10.
  • the jaw member 3 moves up by the abnormal upward thrust applied thereto, the roll 12 pushes back the lever 6 about the pin 7 and the spring 8 and rolls down along the elongated concave 9.
  • a contact point 13b of the roll 12 with the lever 6 comes below the dynamic production of the spring 8.
  • the spring force applied to the rolling link as the downward rotary moment of the jaw member 7 becomes larger than the case where the roll contact point is located on the dynamic production of the spring 8, because, due to the principles of leverage, the spring force applied to the rolling link as the downward rotary moment of the jaw member increases substantially in inverse proportion to the distance between the pin 7 and the roll contact point.
  • the present binding absorbs larger amount of upward thrust with less vertical play of the jaw member.
  • the jaw member 3 has a boot heel engaging piece and a heel bottom receiving piece 16 at the front end thereof and is connected to the supporting block 1 by a pair of the upper and lower links 4 and 5, respectively.
  • the upper link 4 is shorter than the lower link 5 and also slightly shorter than the rolling link 10 and has a S-shaped spring 17 engaged between both pins thereof, the S-shaped spring 17 serving to positively swing up the jaw member 3 in cooperation with the compression spring 8 at the boot heel releasing position.
  • the lower link 5 has the fore end portion con nected with the pin 11, to which the fore end of the link 10 is also connected, and the rear end portion extended behind the roll 12 and connected to the supporting block 1 by a pin 18.
  • the supporting block 1 has side plates 19 intergally connected therewith at both sides thereof.
  • Each side plate 19 has an inwardly curved surface 20 at its front portion, which abuts against the roll 12 in the boot heel engaging position and restricts the lever 10 from further rotating in the counterclockwise direction in FIG. 4.
  • Disposed horizontally within the supporting block is the compression spring 8 of which 7 fore end is received by a traverse pin 21 extending through horizontal elongated slits 22 in the side plates 19.
  • the compression spring 8 is at its rear end received by a pressure adjusting screw 23 of which rear end portion extends outside of the supporting block 1, so that desired compression force of the spring 8 can be obtained by rotating the adjusting screw 23.
  • the roll 12 at the rear end portion of the lever 10 contacts with the concave 9 of the lever 6 such that the roll contact point 13a is on the dynamic production on the first compression spring 8 and that lines connecting the pins ll, 18 at both ends of the lower link 5 and the roll 12 form triangular configuration with the roll 12 being apex.
  • the jaw member 3 partially moves up by an abnormal upward thrust applied thereto, the roll 12 rolls down along the concave 9 of the lever 6 so that the roll contact point comes below the dynamic production of the first compression spring 8.
  • the first compression spring 8 swings up the jaw member 3 with the help ofthe S-shaped spring 17 to release the boot heel from the jaw member as shown in FIG. 6.
  • an L-shaped unlocking lever 27 is pivoted to the supporting block 1 by a pin 28 such that an end portion 27a thereof is engagable with the head portion 6a of the lever 6, which extends above the dynamic production of the spring 8.
  • the lever 6 inclines backwardly about the pin 7 and compresses the first spring 8 as shown in FIG. 7.
  • the S-shaped spring 17 swings up the jaw member 3 to the boot heel releasing position.
  • FIG. 8 In order that the jaw member 3 may be displaced to the boot heel releasing position by a downward force applied to an unlocking lever, for example, by a ski stock, another embodiments is shown in FIG. 8.
  • a swingable link 29 is pivoted at its upper center portion to the supporting block 1 such that both fore and rear arms 29a and 29b thereof extend downwardly to be engagable with the head portion 6a of the lever 6 and the force end of an unlocking lever 30.
  • the distance between the pin 7 of the lever 6 and the head portion 6a engaged by the unlocking lever 27 or the swingable lever 29 is longer than that between the pin 7 and the spring contact point" 14, so that, due to leverage, the jaw member 3 is displaced to the boot heel releasing position by a small force acting on the unlocking lever.
  • a ski boot heel binding comprising a base adapted to be attached to a ski, a supporting block mounted on said base, ajaw member moveable between a boot heel engaging position and a boot heel release position, link means connecting said jaw member to said supporting block, a lever pivotally connected at its lower end to said supporting block, said lever having a longitudinally extending concave surface formed in its front face, a compression spring acting on the back face of said lever and resiliently biasing said lever forward, a rolling link pivotally connected at its front end to the lower portion of said jaw member, a roll connected to the rear end of said rolling link and contacting the upper portion of said concave surface when said lever is in the boot heel engaging position, said compression spring biasing said jaw member in the boot heel engaging position, said roll adapted to move down said concave surface of said lever against the spring force of said compression spring to a point below the dynamic production of said compression spring when said jaw member moves from the boot heel engaging position to the boot heel release position.
  • a ski boot heel binding as claimed in claim 1 wherein said link means connecting said jaw member to said supporting block comprises a pair of upper and lower links, said lower link being pivotally connected at its front end to said front endof said rolling link and at its rear and to said supporting block at a position to the rear of said roll, said roll and said front and rear ends of said lower link forming a triangle in which said roll forms the apex of said triangle when said lever is in the boot heel engaging position.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US426026A 1972-12-25 1973-12-19 Ski boot heel binding Expired - Lifetime US3871673A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1973000272U JPS5235109Y2 (US08080257-20111220-C00005.png) 1972-12-25 1972-12-25

Publications (1)

Publication Number Publication Date
US3871673A true US3871673A (en) 1975-03-18

Family

ID=11469256

Family Applications (1)

Application Number Title Priority Date Filing Date
US426026A Expired - Lifetime US3871673A (en) 1972-12-25 1973-12-19 Ski boot heel binding

Country Status (8)

Country Link
US (1) US3871673A (US08080257-20111220-C00005.png)
JP (1) JPS5235109Y2 (US08080257-20111220-C00005.png)
AT (1) AT330037B (US08080257-20111220-C00005.png)
CA (1) CA983544A (US08080257-20111220-C00005.png)
CH (1) CH559560A5 (US08080257-20111220-C00005.png)
DE (1) DE2364748B2 (US08080257-20111220-C00005.png)
FR (1) FR2211266B1 (US08080257-20111220-C00005.png)
IT (1) IT1001321B (US08080257-20111220-C00005.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984003050A1 (en) * 1983-02-11 1984-08-16 Marker Patentverwertungs Gmbh Step-in yielding heel piece for safety ski binding

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2629354B1 (fr) * 1988-03-29 1991-03-29 Salomon Sa Fixation de securite pour ski

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3473817A (en) * 1966-08-02 1969-10-21 Marker Hannes Heel holder for safety ski bindings
US3550996A (en) * 1967-09-08 1970-12-29 Hannes Marker Heel holding device for safety ski bindings
US3554572A (en) * 1967-12-11 1971-01-12 Hope Kk Safety ski heel binding
US3604720A (en) * 1968-03-29 1971-09-14 Reuge Sa Safety attachment for skis

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3473817A (en) * 1966-08-02 1969-10-21 Marker Hannes Heel holder for safety ski bindings
US3550996A (en) * 1967-09-08 1970-12-29 Hannes Marker Heel holding device for safety ski bindings
US3554572A (en) * 1967-12-11 1971-01-12 Hope Kk Safety ski heel binding
US3604720A (en) * 1968-03-29 1971-09-14 Reuge Sa Safety attachment for skis

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984003050A1 (en) * 1983-02-11 1984-08-16 Marker Patentverwertungs Gmbh Step-in yielding heel piece for safety ski binding
US4624474A (en) * 1983-02-11 1986-11-25 Marker International Company Step-in yielding heel piece for safety ski binding

Also Published As

Publication number Publication date
AT330037B (de) 1976-06-10
JPS49101875U (US08080257-20111220-C00005.png) 1974-09-02
FR2211266A1 (US08080257-20111220-C00005.png) 1974-07-19
ATA1073573A (de) 1975-08-15
DE2364748A1 (de) 1974-07-11
CH559560A5 (US08080257-20111220-C00005.png) 1975-03-14
JPS5235109Y2 (US08080257-20111220-C00005.png) 1977-08-10
DE2364748B2 (de) 1979-06-21
CA983544A (en) 1976-02-10
IT1001321B (it) 1976-04-20
FR2211266B1 (US08080257-20111220-C00005.png) 1980-01-11

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