CA1131671A - Safety-straplike connecting member - Google Patents
Safety-straplike connecting memberInfo
- Publication number
- CA1131671A CA1131671A CA386,079A CA386079A CA1131671A CA 1131671 A CA1131671 A CA 1131671A CA 386079 A CA386079 A CA 386079A CA 1131671 A CA1131671 A CA 1131671A
- Authority
- CA
- Canada
- Prior art keywords
- ski
- locking part
- slot
- locking
- safety
- 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
Links
Abstract
SAFETY-STRAPLIKE CONNECTING MEMBER
ABSTRACT OF THE DISCLOSURE
A structure for securing one end of a safety strap to a ski or a component fixedly mounted on the ski. The other end of the safety strap is presumed to be secured to the skier by any conventional means. The structure by which the safety strap is secured to the ski structure enables the strap to hold the ski to the skier should the ski become disconnected from the skier while travelling on a chairlift or at slow speeds. However, this same structure will facilitate a release of the strap from engagement with the ski structure should the ski be pulled away from the skier with a sufficient magnitude of force, such as will occur during falls at high speeds. The thereafter released ski will be stopped by, for example, a ski brake mechanism mounted on the ski.
ABSTRACT OF THE DISCLOSURE
A structure for securing one end of a safety strap to a ski or a component fixedly mounted on the ski. The other end of the safety strap is presumed to be secured to the skier by any conventional means. The structure by which the safety strap is secured to the ski structure enables the strap to hold the ski to the skier should the ski become disconnected from the skier while travelling on a chairlift or at slow speeds. However, this same structure will facilitate a release of the strap from engagement with the ski structure should the ski be pulled away from the skier with a sufficient magnitude of force, such as will occur during falls at high speeds. The thereafter released ski will be stopped by, for example, a ski brake mechanism mounted on the ski.
Description
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SAFETY-STRAPLIKE CONNECTING MEMBER
FIELD OF THE INVENTION
The invention relates to a safety-straplike connecting member for safety ski bindings whi'ch are equipped with a ski brake, preferably as-a safety mechanism during travel on chairlifts, which is secured or hinged through one of its ends by means of eyelets, hooks, or the like and a lock either on the ski boot or a ski-~ixed binding part or the like or to the ski and can be releasably fixed, in particular can be locked by means of a releasable locking mechanism, through'its other end either to the ski or to a ski-fixed binding part or the'like or to the ski boot.
BACKGROUND OF THE INVENTION
A safety-straplike connecting member of the above-mentioned type is for example described in Austrian Patent No. 289 613. In this known construction the connection between ski boot and safety ski binding or ski consists of a band-shaped multiply bent member, which is nonreleasably secured, however, is swingable through a limited range relative to ~he safety ski binding. The band-shaped member is arbi'trarily '~ `
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releasably secured to the ski boot. A disadvantage of the known device consists in the use of one structural part, which is either only arbitrarily releasably con-nected to the ski boot or performs uncontrolled swivel-ling movements in the loose condition (not locked on the ski boot) and thus creates a dangerous condition for the skier. Furthermore the band-shaped member is a relatively large bulky structural part.
It is also known according to Austrian Patent No.
270 471 to use a catch mechanism for skis, wherein same is in the region of the safety ski binding, and creates a connection, through an automatic coupling during stepping into the safety binding, with a fastening part which is provided on the ski boot. However, it is not possible with this construction to release the safety mechanism from the ski boot, as long as same is locked in the safety ski binding.
According to French OS No. 2 147 916 it is furthermore known, to design a catch mechanism which consists of a plastic material such that same is arbitrarily releasably fixed to the ski boot with one of its ends and is with its other end either secured ski-fixed or fixed through a notch on a ski brake, which notch releases during an overload and releases the ski brake. The disadvantage of this device is in the mandatory use of mountings on the ski boot, furthermore in the catch mechanism being able to be mounted only in the front area of the ski boot, and - - if existing - the ski braXe also having to he arranged in front of the front jaw. All of these solutions are, based on experience,nonfavorable, since the skier during a fall experiences a sudden ~erk or pull at the most sensitive area of the foot. Therefore, such ' ' ~
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solutions were unable to be succ,essful on the market, in spite of repeated attempts.
The goal of the'invention is to avoid the mentioned and further disadvantages of known construc-tions and to provide a safety~straplike connecting member, which either releases automatically during an overload, or can also be moved into a loose posi-tion, when the ski boot is in an engaged condition in the safety ski binding.
The set purpose is inventively attained by the connecting member beiny constructed as an elastic band or as a fixed, multipart member whi'ch'is pro-vided with at least one hinge and which'can be folded and by the locking mechanism having at least one resilient element whi'ch can engage directly or through a connecting piece indirectly arbitrarily with a counterpiece which is constructed as a notch. The locking mechanism will, at least upon the occurrence of an overload of a predetermined magnitude, be released automatically, preferably also by hand and without encountering the entire closing force of the locking mechanism.
A further advantage of an inventive construction includes the locking mechanism being arbitrarily released also in the case of an engaged safety ski binding. In a different exemplary embodiment, the safety ski binding becomes engaged when the safe~y strap is locked on the ski.
Further details, advantages and characteristics of the invention will be described with reference to -the drawings, which illustrate five exemplary embodi-ments.
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Since the structure of the safety ski binding which is illustrated in the following exemplary embodi-ments is known by itself and these are only used to illustrate the arrangement of the inventive chairlift safety mechanism, they will be described hereinafter only as one unit.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings:
Figure 1 is a front view of a locking part of a locking mechanism which is associated with a safety strap;
Figure 2 is a side-elevational view of Figure l;
Figures 3 and 4 are a side view and a top view, re-spectively, of the locking part partially cross sectioned in use with a counterpart on a safety ski binding;
Figures 5 to 8 illustrate a different exemplary embodiment of a locking mechanism, wherein Figure 5 is a perspective view of the counterpiece, Figure 6 is also a perspective view of the resilient element, Figure 7 is a side view of the assembly of a safety ski binding with the inventive locking mechanism thereon, and Figure 8 is a top view of Figure 7;
Figures 9 and 10 are a side and top view, re-spectively, partially in cross section of a further exemplary embodiment;
Figures 11 to 15 illustrate a fourth exemplary embodiment of the inventive locking mechanism, in which an effective closing (a locking) of the safety ski binding is only possible when the safety strap is connected, and in which parts of the safety ski binding are illustrated in opened condition, wherein Figure 11 is a side view of the safety ski binding in the opened position without a connected safety 7~
strap, Figure 12 i~ a partially sectioned p~rspective view of the structural part which receives the resilient element, Figure 13 is a perspective view of the locking part of the element, Figure 14 is a partially sectioned side view of the safety ski binding with the connected counterpart of the locking mechanism in the position prior to closing (locking) of the safety ski binding, and Figure 15 illustrates the safety ski binding in the closed condition according to Figure 14; and Figures 16 and 17 illustrate a further locking mechanism, wherein Figure 16 i5 a side view of the not connected position and Figure 17 is a side view of the connected position.
DETAILED DESCRIPTION
The resilient element of an inventive locking mechanism, which element is constructed as a holding part 2, is secured to one end of a safety strap 1, which end is arranged on a safety ski binding 4 (Figures 3 and 4). The holding part 2 consists of two small spring-steel plates riveted together by means of three rivets la (Figure 1) arranged in the corners of a triangle and with the safety strap 1 sandwiched therebetween. The rivets la further extend through the material of the strap 1. The part of the holding part 2, which projects heyond the safety strap 1, is bent such that it forms, as illustrated, in the side-elevational view of Figure 2, an angled profile 2a. Furthermore the two angled profiles, which together form the holding part 2, are symmetrical.
The end of the angled profile 2a adjacent the safety strap 1, is inclined to the plane 2c of the strap at a steeper angle than the profile part remote therefrom.
The pair of the profiled parts 2a forming the holding L6~
part 2 at an end thereof remote from the safety strap 1 forms a squarelike profile having an open corner defining a space 2b between' the two free ends of the angled profiles 2a.
An elongated slot 3a, the length of which extends perpendicular with respect to the longitudinal axis of the ski, is provided in a release lever 3 of a con-ventional sa~ety ski binding 4, as this is illustrated in Figures ~ and 4, and on a side thereof whi'ch is remote from a ski (not shown). The width of the slot 3a is slightly larger than the width of the holding part 2 as is illustrated in Figure 4. The dimension of the slot 3a in direction of the longitudinal axis of the ski is slight'ly less than the greatest dimension of the square forming profiles 2a. The safety strap 1 is secured by means of its other end in a conventional manner through a ski boot (not shown) to the foot of the skier.
If a skier has entered into the safety ski binding, he must, in order to obtain a "chairlift lock device", that is, a securement of the sa~ety strap to the - skier to withstand the` force,~mposed by a ski becoming free of the skier riding on the chairlift, introduce the holding part 2, as can be seen from the drawing according to Figures 3 and 4, into the slot 3a pro-vided in the release lever 3. Due to the flatter rise of the square ~orming profiles 2a at the end of the holding part remote from the safety strap 1 and due to the fact that between the ends of holding part 2 there exists a space 2b, and due to the use of spring steel for the manufacture of the holding part 2, it is relatively simple to introduce the holding part 2 into the slot 3a without applying a great amount of force.
The holding part 2 is thereby positioned substantially perpendicular to the release'le~er 3. The holding part
SAFETY-STRAPLIKE CONNECTING MEMBER
FIELD OF THE INVENTION
The invention relates to a safety-straplike connecting member for safety ski bindings whi'ch are equipped with a ski brake, preferably as-a safety mechanism during travel on chairlifts, which is secured or hinged through one of its ends by means of eyelets, hooks, or the like and a lock either on the ski boot or a ski-~ixed binding part or the like or to the ski and can be releasably fixed, in particular can be locked by means of a releasable locking mechanism, through'its other end either to the ski or to a ski-fixed binding part or the'like or to the ski boot.
BACKGROUND OF THE INVENTION
A safety-straplike connecting member of the above-mentioned type is for example described in Austrian Patent No. 289 613. In this known construction the connection between ski boot and safety ski binding or ski consists of a band-shaped multiply bent member, which is nonreleasably secured, however, is swingable through a limited range relative to ~he safety ski binding. The band-shaped member is arbi'trarily '~ `
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releasably secured to the ski boot. A disadvantage of the known device consists in the use of one structural part, which is either only arbitrarily releasably con-nected to the ski boot or performs uncontrolled swivel-ling movements in the loose condition (not locked on the ski boot) and thus creates a dangerous condition for the skier. Furthermore the band-shaped member is a relatively large bulky structural part.
It is also known according to Austrian Patent No.
270 471 to use a catch mechanism for skis, wherein same is in the region of the safety ski binding, and creates a connection, through an automatic coupling during stepping into the safety binding, with a fastening part which is provided on the ski boot. However, it is not possible with this construction to release the safety mechanism from the ski boot, as long as same is locked in the safety ski binding.
According to French OS No. 2 147 916 it is furthermore known, to design a catch mechanism which consists of a plastic material such that same is arbitrarily releasably fixed to the ski boot with one of its ends and is with its other end either secured ski-fixed or fixed through a notch on a ski brake, which notch releases during an overload and releases the ski brake. The disadvantage of this device is in the mandatory use of mountings on the ski boot, furthermore in the catch mechanism being able to be mounted only in the front area of the ski boot, and - - if existing - the ski braXe also having to he arranged in front of the front jaw. All of these solutions are, based on experience,nonfavorable, since the skier during a fall experiences a sudden ~erk or pull at the most sensitive area of the foot. Therefore, such ' ' ~
~L~3167~L
solutions were unable to be succ,essful on the market, in spite of repeated attempts.
The goal of the'invention is to avoid the mentioned and further disadvantages of known construc-tions and to provide a safety~straplike connecting member, which either releases automatically during an overload, or can also be moved into a loose posi-tion, when the ski boot is in an engaged condition in the safety ski binding.
The set purpose is inventively attained by the connecting member beiny constructed as an elastic band or as a fixed, multipart member whi'ch'is pro-vided with at least one hinge and which'can be folded and by the locking mechanism having at least one resilient element whi'ch can engage directly or through a connecting piece indirectly arbitrarily with a counterpiece which is constructed as a notch. The locking mechanism will, at least upon the occurrence of an overload of a predetermined magnitude, be released automatically, preferably also by hand and without encountering the entire closing force of the locking mechanism.
A further advantage of an inventive construction includes the locking mechanism being arbitrarily released also in the case of an engaged safety ski binding. In a different exemplary embodiment, the safety ski binding becomes engaged when the safe~y strap is locked on the ski.
Further details, advantages and characteristics of the invention will be described with reference to -the drawings, which illustrate five exemplary embodi-ments.
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Since the structure of the safety ski binding which is illustrated in the following exemplary embodi-ments is known by itself and these are only used to illustrate the arrangement of the inventive chairlift safety mechanism, they will be described hereinafter only as one unit.
BRIEF DESCRIPTION OF THE DRAWINGS
In the drawings:
Figure 1 is a front view of a locking part of a locking mechanism which is associated with a safety strap;
Figure 2 is a side-elevational view of Figure l;
Figures 3 and 4 are a side view and a top view, re-spectively, of the locking part partially cross sectioned in use with a counterpart on a safety ski binding;
Figures 5 to 8 illustrate a different exemplary embodiment of a locking mechanism, wherein Figure 5 is a perspective view of the counterpiece, Figure 6 is also a perspective view of the resilient element, Figure 7 is a side view of the assembly of a safety ski binding with the inventive locking mechanism thereon, and Figure 8 is a top view of Figure 7;
Figures 9 and 10 are a side and top view, re-spectively, partially in cross section of a further exemplary embodiment;
Figures 11 to 15 illustrate a fourth exemplary embodiment of the inventive locking mechanism, in which an effective closing (a locking) of the safety ski binding is only possible when the safety strap is connected, and in which parts of the safety ski binding are illustrated in opened condition, wherein Figure 11 is a side view of the safety ski binding in the opened position without a connected safety 7~
strap, Figure 12 i~ a partially sectioned p~rspective view of the structural part which receives the resilient element, Figure 13 is a perspective view of the locking part of the element, Figure 14 is a partially sectioned side view of the safety ski binding with the connected counterpart of the locking mechanism in the position prior to closing (locking) of the safety ski binding, and Figure 15 illustrates the safety ski binding in the closed condition according to Figure 14; and Figures 16 and 17 illustrate a further locking mechanism, wherein Figure 16 i5 a side view of the not connected position and Figure 17 is a side view of the connected position.
DETAILED DESCRIPTION
The resilient element of an inventive locking mechanism, which element is constructed as a holding part 2, is secured to one end of a safety strap 1, which end is arranged on a safety ski binding 4 (Figures 3 and 4). The holding part 2 consists of two small spring-steel plates riveted together by means of three rivets la (Figure 1) arranged in the corners of a triangle and with the safety strap 1 sandwiched therebetween. The rivets la further extend through the material of the strap 1. The part of the holding part 2, which projects heyond the safety strap 1, is bent such that it forms, as illustrated, in the side-elevational view of Figure 2, an angled profile 2a. Furthermore the two angled profiles, which together form the holding part 2, are symmetrical.
The end of the angled profile 2a adjacent the safety strap 1, is inclined to the plane 2c of the strap at a steeper angle than the profile part remote therefrom.
The pair of the profiled parts 2a forming the holding L6~
part 2 at an end thereof remote from the safety strap 1 forms a squarelike profile having an open corner defining a space 2b between' the two free ends of the angled profiles 2a.
An elongated slot 3a, the length of which extends perpendicular with respect to the longitudinal axis of the ski, is provided in a release lever 3 of a con-ventional sa~ety ski binding 4, as this is illustrated in Figures ~ and 4, and on a side thereof whi'ch is remote from a ski (not shown). The width of the slot 3a is slightly larger than the width of the holding part 2 as is illustrated in Figure 4. The dimension of the slot 3a in direction of the longitudinal axis of the ski is slight'ly less than the greatest dimension of the square forming profiles 2a. The safety strap 1 is secured by means of its other end in a conventional manner through a ski boot (not shown) to the foot of the skier.
If a skier has entered into the safety ski binding, he must, in order to obtain a "chairlift lock device", that is, a securement of the sa~ety strap to the - skier to withstand the` force,~mposed by a ski becoming free of the skier riding on the chairlift, introduce the holding part 2, as can be seen from the drawing according to Figures 3 and 4, into the slot 3a pro-vided in the release lever 3. Due to the flatter rise of the square ~orming profiles 2a at the end of the holding part remote from the safety strap 1 and due to the fact that between the ends of holding part 2 there exists a space 2b, and due to the use of spring steel for the manufacture of the holding part 2, it is relatively simple to introduce the holding part 2 into the slot 3a without applying a great amount of force.
The holding part 2 is thereby positioned substantially perpendicular to the release'le~er 3. The holding part
2 is prevented from falling out of the'slot 3a by the square forming profiles 2a. Also a substantially greater force must be applied to effect a pullin~ of the safety strap 1 or the' holding part 2 out of the slot 3a of the release lever 3 than is needed for in-serting same into the opening.
If now due to unfavorable circumstances the safety ski binding 4 opens unintentionally, for example during travel on a chairli~t, the ski can only fall downwardly until the length of the safety strap 1 limits this movement. The holding part 2 is made of such a strong spring steel sheet metal and the square forming profiles 2a are constructed such that in the one case, as just described, the holding part 2 is not pulled out of the slot 3a. If the skier falls during slow speed, approximately at a walking speed or only at a slightly faster speed of travel, the holding part 2 will not be pulled out of the slot 3a.
At any rate there does not as yet exist any danger to the skier from the ski which is secured to him/her by means of the safety strap, and it has the advantage that the skier must not go back to get the ski which has been stopped by the ski brake. However, if the skier falls at a faster speed, where the ski would be likely to create a dangerous condition for the skier, the safety strap 1 or the holding part 2 will be pulled out of the slot 3a, and the ski will be stopped in a conventional manner by the ski brake.
The exemplary embodiments according to Figures 5 to 8 also disclose a safety strap 1, which is intended as a "chairlift lock device" and which will JL~31~7~
be pulled free from a safety ski binding-4 upon an overload, such as will occur durin~ falls at-fast speeds. A holding part 12 is also riveted by means of rivets la to the saety strap 1. The holding part 12 is a rectangular structural part ha~ing a sub-stantially constant thickness. The holding part 12 is elongated, and has extending in the longitudinal direction, as can be seen from the drawing accoraing to Figure 5, a slot 12a therein, the length of which will be described in more detail below, and the ends of which each have a radius. Approximately in th~
center of the slot 12a there is provided a la~erally extending slot 12b which crosses the slot 12a and which has a size which will be described more in detail below.
A T-shaped or hammerlike part 14 which is il-lustrated in Figure 6 consists of an elastic material, preferably of rubber, ~r the like and has a stem 14a with an oval cross section, and on which is provided an elongated head part 14b, the shape of which cor-responds approximately with the shape o the slot 12a, excluding the notches defined by the laterally extend-ing slot 12b. The width of the notches 12b in the holding part 12 is slightly smaller than the larger diameter of the oval stem 14a The T-shaped part 14 is secured to the release lever 13 of the safety ski binding 4 so that the longitudinal axis of the stem 14a stands perpendicularly on the release lever 13 such that the head part 14b lies parallel with respect to the longitudinal axis of the ski.
After the skier has entered into the bin~ing, he moves the holaing part 12 corresponding with:its form onto the T-shaped part 14, until it has reached the stem 14a, and swings or turns then the holding part 12 at 90 about its longitudinal axis into the posi-tion illustrated in Figures 7 and 8. Due to the fact that the largest diameter of the stem 14a of the T-shaped part 14 is larger than the recess, (width of the slot 12a and the two notches 12b), transversely with respect to the longitudinal direction of the holding part 12, the holding part 12 is jammed onto the T-shaped part 14.
If now the ski falls downwardly away from the skier during travel on a chairlift, the ski will be held to the skier by the safety strap 1. As in the exemplary embodiment according to Figures 1 to 4, the safety strap 1 does not disengage from the T-shaped part 14 even during falls at slow speed. Only during falls at faster speeds will the holding part 12 be pulled off from the T-shaped part 14. The two ends of the head part 14b are thereby pulled by the holding part 12 in a direction away from the safety ski binding 4 approximately vertically upwardly, and form approxi-mately an extension of ~he stem 14a. The notches 12b which are provided in the holding part 12 make it possible fox the holding part to slide over the collapsed head part 14b. Furthermore, the T-shaped part 14 can be manually gripped when used as a handle for effecting an easier manual opening of the release lever 13.
In the exemplary embodiment according to Figures 9 and 10, a release lever 23 of a safety ski binding 4 has on its underside 23b a rectangular-shaped, in longitudinal cross section, enlargement 23c of constant thickness. The release lever 23 has a rectangular-shaped recess 23d on its uppersi~e 23a, which recess i7~
extends into the enlargement 23c, however, does not extend completely therethrough. The enlargement 23c is provided approximately on the longitudinal axis of the ski and is designed s~lbstantially symmetrical thereto. The enlargement 23c part of the release lever 23 has an opening 23e'in the region of the longitudinal axis of the ski which extends perpendicular-ly with respect to the width of the slot 23d and opens outwardly toward the tai~ of the ski.
The opening terminates at one end in thé slot 23d.
The other end of the opening 23e, which end opens outwardly toward the tail of the ski, is provided with a thread extending approximately over one third of the length of the opening 23e. After this first third, the opening 23e is stepped into a larger diameter.
Shortly before terminating in the rectangular slot 23d, the opening 23e is tapered slightly. An adjusting screw 24 having a slotted head threadedly engages the threaded part of the opening 23e. The adjusting screw 24 has at its end remote rom the head a platelike part 24a~ A coil spring 25 is supported at one end thereof on the platelike par~ 24a. The coil spring 25 engages at its other end a locking ball 26, the diameter of which'is slight'ly larger than the diameter of the opening 23e in the region whereat it terminates in the rectangular slot 23d~ As a result, it is not possible for the ball 26 to be pressed completely into the slot 23d. With the aid of thè adjusting screw 24, it is possible to change the in~tial tension of the coil spring 25 and, as a result~ the release value of a locking part 27 ox of the safety strap 1 from the release lever 23 can be changed. The selection o~ the spring 25 determines the limits between whi'ch'the ~3~L~7~
release force can be adjusted.
The end of the safety strap 1 which is associated with the release'lever 23,' is gripped by the'locking part 27. The locking part 27 is a rectangular member having a substantially constant thi'ckness. Only on one side, as can be seen from the drawings according to Figures 9 and 10, does the locking part 27 have an approx.imately semispherical-shaped locking cup 27a. If the skier has entered, as in the two preceding exemplary embodiments according to Figures 1 to 8, into the safety ski binding 4, he then places the end of the safety strap 1 having the'locking part 27 thereon into the rectangular slot 23d of the release lever 23 so that the locking ball 26 is received in the locking cup 27a in the locking part 27. Just as in the pre-ceding two exemplary 'embodiments, here too the ski (.not shown) is prevented from falling downwardly to the ground from for example a chairlift, because the locking part 27a will not become disengaged in such a case from the locking cup 26. Also locking ball 26 and locking part 27 ren,ain in engagement during falls which occur at relatively slow speeds. In the case of falls at a high'spebd, the safety strap 1 is pulled out of its locking relation with'thb release lever.23 and the ski Inot shown) is stopped by the ski brake on the ski.
A closing of the heeI hold down means o a safety ski binding, which closing is associated with a locking thereof, is only possible'in the exemplary embodiment according to Figures 11 to 15, if the safety strap 1 is in the locked position, as shown in the position according to Figure 14.
The release lever 33'ha's, as can best be seen from ~3~;71 the inclined cross-sectional illustration according to Figure 12, a small slot 33c and a large'slot 33d, The large slot 33d is provided in direction toward the tail of the ski behind the small slot 33c. Both the large slot 33d and also the small slot 33c are designed substantially rectangular in shape, are provided in the region of the longitudinal axis of the ski, are oriented perpendicularly with respect to same and are positioned substantially symmetrical about the central longitudinal axis of the release lever. Furthermore two rectangular plates-33e, 33f are mounted on the underside 33b of the release lever 33. The plate 33e is thereby provided between the two slots 33c, 33d and the other plate 33~ is provided in direction toward the tail of the ski beh'ind the large'slot 33d. The width of the plates 33e, 33 will be described more in detail hereinbelow. A substantially rectangular support block 33g is provided on the under-side 33b of the release lever 33 behind the plate 33f in direction toward the tail of the ski. The support block 33g is approximately as wide as the two rectangu-lar plates 33e, 33f. The support block 33g has on its side which is remote from the ~ail of the'ski and which lies perpendicular with'respect to the longi-tudinal axis of the ski three blind holes 33h of a diameter which will be described more in detail below.
A locking part 34 having an irregular shape has a substantially rectangularly-shaped operating plate 34a of a substantially constant thickness, has ap-proximately in the central region on each side thereofone locking plate 34b, 34c, whi'ch are supported on the rectangular plates 33e, 33f on the release lever 33 such that the operating plate'34a extends through the 'lar~e slot 33d in the release lever 33 perpendicularly with respect to the planar surface of the' release 'lever 33 and permits the locking part 34 to undergo a limited amount of movement in direction of the longitudinal axis of the ski. The path whi'ch'the locking part 34 can cover is determined by the dimension of the large slot 33d in direction of the longitudinal axis of the ski.
The locking part 34 is biassed by three coil springs 35 which'engage'at one end thereof an edge of the locking plate 34c which'faces the tail of the ski.
The othPr ends of the coil springs 35 are received in the three blind hbles 33h provided in thë support block 33g of the release lever 33.' The diameters of the blind holes 33~ are slight'ly larger than the diameters of the coil springs 35.
The ~ree end of the'locking plate 34b which'is remote from the en'd of the ski has a radius thereat.
Furthermore said locking plate 34b is approximately twice as long as the locking plate 34c which faces the tail of the ski. The end of the locking plate 34b having the radius thereat, is aligned with'the approximate longitudinal center of the small slot 33c when the locking part is in-the position which'is most remote from the tail of the ski. Approximately in the area below the small slot 33c, there is provided a binding-fixed structural part 36 having an opening 36a therein, which opening 36a permits an unrestrictea introduction of a locking part 37 into the small slot 33c. Thereafter, the release lever 33 is swung to the closed condition.
The locking part 37 is, as can be'recognized from Figures 14 and 15, a rectangular member having a ~3:~673L
substantially constant thickness and has on its side which'face~ the tail of the ski an enlargement 37a.
The enlargement 37a starts at the end of the locking part 37 remote from the'safety strap 1, and rises slowly and continuously before it drops off steeply to the part having a substantially constank thickness.
The enlargement 37a extends approximately half of the length of the locking part 37 which is riveted to the safety strap 1 by means of ri~ets 38. The safety strap 1 is riveted to the'side of the locking part 37 remote from the tail of the ski.
As can be recognized from the perspe~tive view according to Figure 13, thb operating plate 34a of the locking part 34 has at one'edge a sloped surface 34d.
The purpose of the sloped surface 34d will be described more in detail hereinbelow.
In the lifted-up condition of the release lever 33, as illustrated in Figure ll, the end of the operating plate 34a having the sloped surface 34d thereon, rests in a correspondingly shaped groove 36b provided at an edge of the binding-fixed structural part 36. The sloped surface 34d assures the secure resting of the opexating plate 34a in the groove 36b.
As can be seen according to Figure 11, it is impossible to close the release lever 33, as long as the locking part 37 is not in the'small slot 33cu Due to the slow ana continuous rise'of the en-largement 37a, it is now easy to introduce the locking part 34 into the'small slot 33c to effect a moving back of the locking part 34. During this move-ment the operating plate 34a becomes disengaged from the groove 36b associatea therewith, and it is possible to swing the release'lever 33'in a clockwise dixection .
~13~6~
and to thus lock the safety ski binding. In order to prevent a possible catching of the operating plate 34a on the rear edge of the' binding-fixed structural part
If now due to unfavorable circumstances the safety ski binding 4 opens unintentionally, for example during travel on a chairli~t, the ski can only fall downwardly until the length of the safety strap 1 limits this movement. The holding part 2 is made of such a strong spring steel sheet metal and the square forming profiles 2a are constructed such that in the one case, as just described, the holding part 2 is not pulled out of the slot 3a. If the skier falls during slow speed, approximately at a walking speed or only at a slightly faster speed of travel, the holding part 2 will not be pulled out of the slot 3a.
At any rate there does not as yet exist any danger to the skier from the ski which is secured to him/her by means of the safety strap, and it has the advantage that the skier must not go back to get the ski which has been stopped by the ski brake. However, if the skier falls at a faster speed, where the ski would be likely to create a dangerous condition for the skier, the safety strap 1 or the holding part 2 will be pulled out of the slot 3a, and the ski will be stopped in a conventional manner by the ski brake.
The exemplary embodiments according to Figures 5 to 8 also disclose a safety strap 1, which is intended as a "chairlift lock device" and which will JL~31~7~
be pulled free from a safety ski binding-4 upon an overload, such as will occur durin~ falls at-fast speeds. A holding part 12 is also riveted by means of rivets la to the saety strap 1. The holding part 12 is a rectangular structural part ha~ing a sub-stantially constant thickness. The holding part 12 is elongated, and has extending in the longitudinal direction, as can be seen from the drawing accoraing to Figure 5, a slot 12a therein, the length of which will be described in more detail below, and the ends of which each have a radius. Approximately in th~
center of the slot 12a there is provided a la~erally extending slot 12b which crosses the slot 12a and which has a size which will be described more in detail below.
A T-shaped or hammerlike part 14 which is il-lustrated in Figure 6 consists of an elastic material, preferably of rubber, ~r the like and has a stem 14a with an oval cross section, and on which is provided an elongated head part 14b, the shape of which cor-responds approximately with the shape o the slot 12a, excluding the notches defined by the laterally extend-ing slot 12b. The width of the notches 12b in the holding part 12 is slightly smaller than the larger diameter of the oval stem 14a The T-shaped part 14 is secured to the release lever 13 of the safety ski binding 4 so that the longitudinal axis of the stem 14a stands perpendicularly on the release lever 13 such that the head part 14b lies parallel with respect to the longitudinal axis of the ski.
After the skier has entered into the bin~ing, he moves the holaing part 12 corresponding with:its form onto the T-shaped part 14, until it has reached the stem 14a, and swings or turns then the holding part 12 at 90 about its longitudinal axis into the posi-tion illustrated in Figures 7 and 8. Due to the fact that the largest diameter of the stem 14a of the T-shaped part 14 is larger than the recess, (width of the slot 12a and the two notches 12b), transversely with respect to the longitudinal direction of the holding part 12, the holding part 12 is jammed onto the T-shaped part 14.
If now the ski falls downwardly away from the skier during travel on a chairlift, the ski will be held to the skier by the safety strap 1. As in the exemplary embodiment according to Figures 1 to 4, the safety strap 1 does not disengage from the T-shaped part 14 even during falls at slow speed. Only during falls at faster speeds will the holding part 12 be pulled off from the T-shaped part 14. The two ends of the head part 14b are thereby pulled by the holding part 12 in a direction away from the safety ski binding 4 approximately vertically upwardly, and form approxi-mately an extension of ~he stem 14a. The notches 12b which are provided in the holding part 12 make it possible fox the holding part to slide over the collapsed head part 14b. Furthermore, the T-shaped part 14 can be manually gripped when used as a handle for effecting an easier manual opening of the release lever 13.
In the exemplary embodiment according to Figures 9 and 10, a release lever 23 of a safety ski binding 4 has on its underside 23b a rectangular-shaped, in longitudinal cross section, enlargement 23c of constant thickness. The release lever 23 has a rectangular-shaped recess 23d on its uppersi~e 23a, which recess i7~
extends into the enlargement 23c, however, does not extend completely therethrough. The enlargement 23c is provided approximately on the longitudinal axis of the ski and is designed s~lbstantially symmetrical thereto. The enlargement 23c part of the release lever 23 has an opening 23e'in the region of the longitudinal axis of the ski which extends perpendicular-ly with respect to the width of the slot 23d and opens outwardly toward the tai~ of the ski.
The opening terminates at one end in thé slot 23d.
The other end of the opening 23e, which end opens outwardly toward the tail of the ski, is provided with a thread extending approximately over one third of the length of the opening 23e. After this first third, the opening 23e is stepped into a larger diameter.
Shortly before terminating in the rectangular slot 23d, the opening 23e is tapered slightly. An adjusting screw 24 having a slotted head threadedly engages the threaded part of the opening 23e. The adjusting screw 24 has at its end remote rom the head a platelike part 24a~ A coil spring 25 is supported at one end thereof on the platelike par~ 24a. The coil spring 25 engages at its other end a locking ball 26, the diameter of which'is slight'ly larger than the diameter of the opening 23e in the region whereat it terminates in the rectangular slot 23d~ As a result, it is not possible for the ball 26 to be pressed completely into the slot 23d. With the aid of thè adjusting screw 24, it is possible to change the in~tial tension of the coil spring 25 and, as a result~ the release value of a locking part 27 ox of the safety strap 1 from the release lever 23 can be changed. The selection o~ the spring 25 determines the limits between whi'ch'the ~3~L~7~
release force can be adjusted.
The end of the safety strap 1 which is associated with the release'lever 23,' is gripped by the'locking part 27. The locking part 27 is a rectangular member having a substantially constant thi'ckness. Only on one side, as can be seen from the drawings according to Figures 9 and 10, does the locking part 27 have an approx.imately semispherical-shaped locking cup 27a. If the skier has entered, as in the two preceding exemplary embodiments according to Figures 1 to 8, into the safety ski binding 4, he then places the end of the safety strap 1 having the'locking part 27 thereon into the rectangular slot 23d of the release lever 23 so that the locking ball 26 is received in the locking cup 27a in the locking part 27. Just as in the pre-ceding two exemplary 'embodiments, here too the ski (.not shown) is prevented from falling downwardly to the ground from for example a chairlift, because the locking part 27a will not become disengaged in such a case from the locking cup 26. Also locking ball 26 and locking part 27 ren,ain in engagement during falls which occur at relatively slow speeds. In the case of falls at a high'spebd, the safety strap 1 is pulled out of its locking relation with'thb release lever.23 and the ski Inot shown) is stopped by the ski brake on the ski.
A closing of the heeI hold down means o a safety ski binding, which closing is associated with a locking thereof, is only possible'in the exemplary embodiment according to Figures 11 to 15, if the safety strap 1 is in the locked position, as shown in the position according to Figure 14.
The release lever 33'ha's, as can best be seen from ~3~;71 the inclined cross-sectional illustration according to Figure 12, a small slot 33c and a large'slot 33d, The large slot 33d is provided in direction toward the tail of the ski behind the small slot 33c. Both the large slot 33d and also the small slot 33c are designed substantially rectangular in shape, are provided in the region of the longitudinal axis of the ski, are oriented perpendicularly with respect to same and are positioned substantially symmetrical about the central longitudinal axis of the release lever. Furthermore two rectangular plates-33e, 33f are mounted on the underside 33b of the release lever 33. The plate 33e is thereby provided between the two slots 33c, 33d and the other plate 33~ is provided in direction toward the tail of the ski beh'ind the large'slot 33d. The width of the plates 33e, 33 will be described more in detail hereinbelow. A substantially rectangular support block 33g is provided on the under-side 33b of the release lever 33 behind the plate 33f in direction toward the tail of the ski. The support block 33g is approximately as wide as the two rectangu-lar plates 33e, 33f. The support block 33g has on its side which is remote from the ~ail of the'ski and which lies perpendicular with'respect to the longi-tudinal axis of the ski three blind holes 33h of a diameter which will be described more in detail below.
A locking part 34 having an irregular shape has a substantially rectangularly-shaped operating plate 34a of a substantially constant thickness, has ap-proximately in the central region on each side thereofone locking plate 34b, 34c, whi'ch are supported on the rectangular plates 33e, 33f on the release lever 33 such that the operating plate'34a extends through the 'lar~e slot 33d in the release lever 33 perpendicularly with respect to the planar surface of the' release 'lever 33 and permits the locking part 34 to undergo a limited amount of movement in direction of the longitudinal axis of the ski. The path whi'ch'the locking part 34 can cover is determined by the dimension of the large slot 33d in direction of the longitudinal axis of the ski.
The locking part 34 is biassed by three coil springs 35 which'engage'at one end thereof an edge of the locking plate 34c which'faces the tail of the ski.
The othPr ends of the coil springs 35 are received in the three blind hbles 33h provided in thë support block 33g of the release lever 33.' The diameters of the blind holes 33~ are slight'ly larger than the diameters of the coil springs 35.
The ~ree end of the'locking plate 34b which'is remote from the en'd of the ski has a radius thereat.
Furthermore said locking plate 34b is approximately twice as long as the locking plate 34c which faces the tail of the ski. The end of the locking plate 34b having the radius thereat, is aligned with'the approximate longitudinal center of the small slot 33c when the locking part is in-the position which'is most remote from the tail of the ski. Approximately in the area below the small slot 33c, there is provided a binding-fixed structural part 36 having an opening 36a therein, which opening 36a permits an unrestrictea introduction of a locking part 37 into the small slot 33c. Thereafter, the release lever 33 is swung to the closed condition.
The locking part 37 is, as can be'recognized from Figures 14 and 15, a rectangular member having a ~3:~673L
substantially constant thickness and has on its side which'face~ the tail of the ski an enlargement 37a.
The enlargement 37a starts at the end of the locking part 37 remote from the'safety strap 1, and rises slowly and continuously before it drops off steeply to the part having a substantially constank thickness.
The enlargement 37a extends approximately half of the length of the locking part 37 which is riveted to the safety strap 1 by means of ri~ets 38. The safety strap 1 is riveted to the'side of the locking part 37 remote from the tail of the ski.
As can be recognized from the perspe~tive view according to Figure 13, thb operating plate 34a of the locking part 34 has at one'edge a sloped surface 34d.
The purpose of the sloped surface 34d will be described more in detail hereinbelow.
In the lifted-up condition of the release lever 33, as illustrated in Figure ll, the end of the operating plate 34a having the sloped surface 34d thereon, rests in a correspondingly shaped groove 36b provided at an edge of the binding-fixed structural part 36. The sloped surface 34d assures the secure resting of the opexating plate 34a in the groove 36b.
As can be seen according to Figure 11, it is impossible to close the release lever 33, as long as the locking part 37 is not in the'small slot 33cu Due to the slow ana continuous rise'of the en-largement 37a, it is now easy to introduce the locking part 34 into the'small slot 33c to effect a moving back of the locking part 34. During this move-ment the operating plate 34a becomes disengaged from the groove 36b associatea therewith, and it is possible to swing the release'lever 33'in a clockwise dixection .
~13~6~
and to thus lock the safety ski binding. In order to prevent a possible catching of the operating plate 34a on the rear edge of the' binding-fixed structural part
3~, the operating plate 34a has the aforementioned sloped surface 34d.
With respect to ski loss during cha'irlift travel or falls, the locking securement of the locking part 37 to the release lever 3~'behaves as in the described exemplary embodiments according to Figures 1 to 10.
For a voluntary opening, it is possible to manually move the locking part 34 in direction of the'arrow P
against the force of the springs 35, so that little or no force is needed.
In the exemplary embodiment which is illustrated in Figures 16 and 17, a safety strap is not used but instea'd a catching mechanism 41 is used. A sa~ety ski binding 4 of common structure is secured to a ski (not identified). A plate 4a is secured on the safety ski binding 4, whïch'plate is provided with'an opening 4b, the axis of which'extends'perpendicularly with respect to the longitudinal axis of the ski. A two-part holding bar 42 is pivotally supported through a limited range in the opening 4b. The first part 42a is thereby designed substantially straight and is hingedly connected to the second part 42c by means of a hinge 42b. In the region of the plate 4a the second part 42c is bent at almost 90 in a direction away from the sa~ety ski binding 4 to form a section 42d. The second part ~2c also has at the'just now described end a bent section 42e extending at a riyht angle to the section 42d and generally parallel to the axis of the opening 4b.
Two brackets 43 are provided in the'area of the . . .
67~
bent section 42d or the bend 42e arranged thereon..The brackets 43 are both hook-sha'ped and are supported on one end of a holding rod 44.by means of a laterally extending pin 45 such'that the hook-shaped parts face one another. The other end of the' holding rod 44 has an eyelet 44a formed thereon. The holding rod 44 has in the region of the end whi'ch faces the' brackets 43 a shoulder ~4b. A hollow cylinder 46, the'diameter of which is sufficiently large that it can grip over the brackets 43, when these are in the position ac-cording to Figure 17, grips over the just now described structural parts. The end of the cylinder 4S remote from the brackets 43`is closed off and has in the center an opening 46a exten'ding therethrough. The holding rod 44 extends through'the' opening 46a. The cylinder 46 is designed sufficiently long that it extends in the opened position of the safety mechanism 41 in direction of the bracket's 43 approximately to the pin 45. A coil spring 47, which'is supported with one end on the shoulder 44b of the holding rod 44, biasses the cylinder 46 in direction away from the safety ski binding 4.
The holding rod ~4 is supported by means of a hinge pin 48, which normally extends through'the eyelet 44a and through openings in a bearing part 49 fixedly connected to the ski boot S0. Furthermore, a lever 51 is pivotally supported through a limited range on the hinge pin 48. The' lever 51 has in the area of the bearing part 49 a fork-shaped part 51a, which ~0 permits it to carry out an unrestricted swinging move-ment in spite of the existence of the holding rod 44in this region.
Due to the special construction of the' lever 51 . , .
7~L
in the region of the fork-shaped part 51a, it is possible for the cylinder 46 to be locked or fixedly held in two positions. Furt~ermore, the'lever 51 has at its end whi'ch'is xemote from the fork-shaped part 51a a depression 51b, which facilitates an operation of the same with a ski pole.
If the skier now enters the safety ski binding 4t the two bracket5 43 slide over the bent sections 42e, which are on the second part 42c of the catch mechanism 41 in the region of the bent section 42d.
Due to the special form of the brackets 43,' these are spread apart and will, as soon as the safety ski binding 4 is locked, lie în the position as is illustrated in Figure 16. Th~ lever 51 is thereafter in the position according to Figure 16. The highest point of the fork-shaped part 51a, which'loads the cylinder 46, is thereby farther away from the ski boot 50 than the holding rod 44. The lever 51 receives thereby a torque in counterclockwise direction. Since the lever Sl rests on the ski boot 50, it is thus locked in this position and is also secured against vibration. Since no connection at all exists between the' brackets 43 and ~he two-part holding bar 42, the catch mechanism 41 behaves during a fall just as if it was not at all in existence.
If the skier moves the lever 51 into the position illustrated in Figure 17, as this will be the case prior to travelling on the chairlift, the cylinder 46 will be moved due to the camlike form of the fork- ' -shaped part 51a agains~ the force of the coil spring 47 over the brackets 43. The brackets ~3 are closed `
and grip around th~ bent sec'tion 42e. A loss of the ski (not identified in aetail) is now no longer 67~
possible, because the connection between the brackets 43 cannot be released in this position. The' point on the lever 51, whïch'loads the cylinder' 46 and engages the end of the' cylinder in the locked position is tor~ued in the cloc~wise direction by the coil spring in the cylinder 46 to cause the lever 51 to be held in the locked position. If the lever 51 is again moved into the position according to Figure 16, then the two brackets 43'again rest releasably on the bent section 42e of the second holding part 43c.
The invention is not limited to the illustrated exemplary embodiments. Further modifications are con-ceivable, without departing from the scope of the invention. For example,' thb connection between'ski boot and ski can be designed as a rope, whïch rope is wound up'onto a spring-loaded drum. It is also possible that the safety strap is locked on a different ski-fixed structural part than the release lever.
Also the adjustment of the cylinder can be designed differently. For example, two locking points on the holding rod or on the' locking part would be sufficient for this purpose. In place of the used coil spring, it would also be possible to use cup springs or leaf springs.
Although particular preferred embodiments of the invention have been aisclosed in detail for il-lustrative purposes, it will be recognize~ that varia-tions or modifications-of the disclosed apparatus, in-cluding the rearrangement of parts, lie within the scope of the present invention.
With respect to ski loss during cha'irlift travel or falls, the locking securement of the locking part 37 to the release lever 3~'behaves as in the described exemplary embodiments according to Figures 1 to 10.
For a voluntary opening, it is possible to manually move the locking part 34 in direction of the'arrow P
against the force of the springs 35, so that little or no force is needed.
In the exemplary embodiment which is illustrated in Figures 16 and 17, a safety strap is not used but instea'd a catching mechanism 41 is used. A sa~ety ski binding 4 of common structure is secured to a ski (not identified). A plate 4a is secured on the safety ski binding 4, whïch'plate is provided with'an opening 4b, the axis of which'extends'perpendicularly with respect to the longitudinal axis of the ski. A two-part holding bar 42 is pivotally supported through a limited range in the opening 4b. The first part 42a is thereby designed substantially straight and is hingedly connected to the second part 42c by means of a hinge 42b. In the region of the plate 4a the second part 42c is bent at almost 90 in a direction away from the sa~ety ski binding 4 to form a section 42d. The second part ~2c also has at the'just now described end a bent section 42e extending at a riyht angle to the section 42d and generally parallel to the axis of the opening 4b.
Two brackets 43 are provided in the'area of the . . .
67~
bent section 42d or the bend 42e arranged thereon..The brackets 43 are both hook-sha'ped and are supported on one end of a holding rod 44.by means of a laterally extending pin 45 such'that the hook-shaped parts face one another. The other end of the' holding rod 44 has an eyelet 44a formed thereon. The holding rod 44 has in the region of the end whi'ch faces the' brackets 43 a shoulder ~4b. A hollow cylinder 46, the'diameter of which is sufficiently large that it can grip over the brackets 43, when these are in the position ac-cording to Figure 17, grips over the just now described structural parts. The end of the cylinder 4S remote from the brackets 43`is closed off and has in the center an opening 46a exten'ding therethrough. The holding rod 44 extends through'the' opening 46a. The cylinder 46 is designed sufficiently long that it extends in the opened position of the safety mechanism 41 in direction of the bracket's 43 approximately to the pin 45. A coil spring 47, which'is supported with one end on the shoulder 44b of the holding rod 44, biasses the cylinder 46 in direction away from the safety ski binding 4.
The holding rod ~4 is supported by means of a hinge pin 48, which normally extends through'the eyelet 44a and through openings in a bearing part 49 fixedly connected to the ski boot S0. Furthermore, a lever 51 is pivotally supported through a limited range on the hinge pin 48. The' lever 51 has in the area of the bearing part 49 a fork-shaped part 51a, which ~0 permits it to carry out an unrestricted swinging move-ment in spite of the existence of the holding rod 44in this region.
Due to the special construction of the' lever 51 . , .
7~L
in the region of the fork-shaped part 51a, it is possible for the cylinder 46 to be locked or fixedly held in two positions. Furt~ermore, the'lever 51 has at its end whi'ch'is xemote from the fork-shaped part 51a a depression 51b, which facilitates an operation of the same with a ski pole.
If the skier now enters the safety ski binding 4t the two bracket5 43 slide over the bent sections 42e, which are on the second part 42c of the catch mechanism 41 in the region of the bent section 42d.
Due to the special form of the brackets 43,' these are spread apart and will, as soon as the safety ski binding 4 is locked, lie în the position as is illustrated in Figure 16. Th~ lever 51 is thereafter in the position according to Figure 16. The highest point of the fork-shaped part 51a, which'loads the cylinder 46, is thereby farther away from the ski boot 50 than the holding rod 44. The lever 51 receives thereby a torque in counterclockwise direction. Since the lever Sl rests on the ski boot 50, it is thus locked in this position and is also secured against vibration. Since no connection at all exists between the' brackets 43 and ~he two-part holding bar 42, the catch mechanism 41 behaves during a fall just as if it was not at all in existence.
If the skier moves the lever 51 into the position illustrated in Figure 17, as this will be the case prior to travelling on the chairlift, the cylinder 46 will be moved due to the camlike form of the fork- ' -shaped part 51a agains~ the force of the coil spring 47 over the brackets 43. The brackets ~3 are closed `
and grip around th~ bent sec'tion 42e. A loss of the ski (not identified in aetail) is now no longer 67~
possible, because the connection between the brackets 43 cannot be released in this position. The' point on the lever 51, whïch'loads the cylinder' 46 and engages the end of the' cylinder in the locked position is tor~ued in the cloc~wise direction by the coil spring in the cylinder 46 to cause the lever 51 to be held in the locked position. If the lever 51 is again moved into the position according to Figure 16, then the two brackets 43'again rest releasably on the bent section 42e of the second holding part 43c.
The invention is not limited to the illustrated exemplary embodiments. Further modifications are con-ceivable, without departing from the scope of the invention. For example,' thb connection between'ski boot and ski can be designed as a rope, whïch rope is wound up'onto a spring-loaded drum. It is also possible that the safety strap is locked on a different ski-fixed structural part than the release lever.
Also the adjustment of the cylinder can be designed differently. For example, two locking points on the holding rod or on the' locking part would be sufficient for this purpose. In place of the used coil spring, it would also be possible to use cup springs or leaf springs.
Although particular preferred embodiments of the invention have been aisclosed in detail for il-lustrative purposes, it will be recognize~ that varia-tions or modifications-of the disclosed apparatus, in-cluding the rearrangement of parts, lie within the scope of the present invention.
Claims (3)
1. A retaining device adapted for use with a ski having a ski binding mounted thereon releasably securing a ski shoe to the ski, said device comprising:
a safety strap, one end of said safety strap being releasably securable to the leg of a skier;
a first locking part securely attached to the end of said safety strap remote from said one end and having an enlargement thereon;
a release lever provided on said ski binding and having two spaced slots therethrough, one said slot being adapted to receive said first locking part therein;
a second locking part supported in the other said slot for reciprocal movement longitudinally thereof between first and second positions, having an operating plate extending substantially normal to the direction of said reciprocal movement, and having at least one locking plate which is located adjacent said one slot when said second locking part is in said first position and engages said enlargement on said first locking part when said first locking part is received in said one slot to resist withdrawal of said first locking part from said one slot, said second locking part being in a third position inter-mediate said first and second positions when said locking plate is engaging said enlargement;
resilient means cooperable with said second locking part for urging said second locking part toward said first position; and means defining a sloped surface on at least one of said enlargement and said locking plate at the point of engagement therebetween;
whereby a force of sufficient magnitude exerted through said safety strap on said first locking part will act through said sloped surface means to displace said second locking part toward said second position against the force of said resilient means, thereby disengaging said enlargement from said locking plate and facilitating withdrawal of said first locking part from said one slot.
a safety strap, one end of said safety strap being releasably securable to the leg of a skier;
a first locking part securely attached to the end of said safety strap remote from said one end and having an enlargement thereon;
a release lever provided on said ski binding and having two spaced slots therethrough, one said slot being adapted to receive said first locking part therein;
a second locking part supported in the other said slot for reciprocal movement longitudinally thereof between first and second positions, having an operating plate extending substantially normal to the direction of said reciprocal movement, and having at least one locking plate which is located adjacent said one slot when said second locking part is in said first position and engages said enlargement on said first locking part when said first locking part is received in said one slot to resist withdrawal of said first locking part from said one slot, said second locking part being in a third position inter-mediate said first and second positions when said locking plate is engaging said enlargement;
resilient means cooperable with said second locking part for urging said second locking part toward said first position; and means defining a sloped surface on at least one of said enlargement and said locking plate at the point of engagement therebetween;
whereby a force of sufficient magnitude exerted through said safety strap on said first locking part will act through said sloped surface means to displace said second locking part toward said second position against the force of said resilient means, thereby disengaging said enlargement from said locking plate and facilitating withdrawal of said first locking part from said one slot.
2. The retaining device according to Claim 1, wherein:
said release lever is pivotally supported on said ski binding for movement between open and closed posi-tions;
said operating plate on said second locking part includes a sloped area at an end thereof adjacent said ski binding; and said ski binding includes a groove engageable with said sloped area on said operating plate when said release lever is in said open position and said second locking part is in said closed position to inhibit pivotal movement of said release lever toward said closed position, said sloped area of said operating plate being disengaged from said groove when said second locking part is displaced from said first position.
said release lever is pivotally supported on said ski binding for movement between open and closed posi-tions;
said operating plate on said second locking part includes a sloped area at an end thereof adjacent said ski binding; and said ski binding includes a groove engageable with said sloped area on said operating plate when said release lever is in said open position and said second locking part is in said closed position to inhibit pivotal movement of said release lever toward said closed position, said sloped area of said operating plate being disengaged from said groove when said second locking part is displaced from said first position.
3. The retaining device according to Claim 1, wherein said first and second positions of said second locking part are each determined by engagement of said operating plate with a respective end of said other slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA386,079A CA1131671A (en) | 1978-04-21 | 1981-09-16 | Safety-straplike connecting member |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT289778A AT361820B (en) | 1978-04-21 | 1978-04-21 | TIE BELT CONNECTOR |
| ATA2897/78 | 1978-04-21 | ||
| CA325,666A CA1131669A (en) | 1978-04-21 | 1979-04-18 | Safety-straplike connecting member |
| CA386,079A CA1131671A (en) | 1978-04-21 | 1981-09-16 | Safety-straplike connecting member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1131671A true CA1131671A (en) | 1982-09-14 |
Family
ID=27148999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA386,079A Expired CA1131671A (en) | 1978-04-21 | 1981-09-16 | Safety-straplike connecting member |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1131671A (en) |
-
1981
- 1981-09-16 CA CA386,079A patent/CA1131671A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |