WO1983000312A1

WO1983000312A1 - Foot-rest for sailing board

Info

Publication number: WO1983000312A1
Application number: PCT/CH1982/000093
Authority: WO
Inventors: Windsurfing Ag Mistral
Original assignee: Gaide, Albert; Prade, Ernstfried
Priority date: 1981-07-27
Filing date: 1982-07-26
Publication date: 1983-02-03
Also published as: ATE16163T1; DE8121971U1; EP0071221B1; DE3267026D1; EP0071221A1

Abstract

Foot-rest (1) for a sailing board (4), mounted alone or by groups on the upper surface (6) of the sailing board (4) and comprised of a strap. The strap is connected to the upper surface (6) of the board (4) by both its ends. At least one of the ends of the strap is connected to the board (4), as for a security clamp, by a device wherein a spring element (22) allows to adjust the opening moment of that end of the foot-rest (1). The foot-rest (1) is fixed to a shaft (2) of a part having the shape of a clip (3). In the board (4) there is mounted a casing (5) comprising a fixed retainer shaft (8). The clip-shaped part (3) grips the retainer shaft (8) from the top, with the possibility to adjust the initial tension by means of the spring element (22, 20). When exceeding the clamping force, determined by the initial tension, of the clip-shaped part (3), the latter is disengaged from the retainer shaft by moving upwardly with the foot-rest (1).

Description

Foot loops for rescuers

The invention relates to foot straps on windsurf boards which are provided individually or in groups on the deck surface of the windsurf board and consist of a section of a belt which is connected at both ends to the deck surface of the windsurf board, at least one end of the belt board which is connected to the windsurf board by means of a device which has an axis holding the webbing, the device for releasing the foot strap being designed to be releasable in the opening and to be latched in the closing direction, and the releasing torque of the device is adjustable and furthermore, the closed position of the device is held in a snap-in manner by positive locking of a molded body and the molded body is biased by a spring element into the locked position with adjustable spring force.

Foot straps are generally known and are widely used in the sport of windsurfing, in particular in jumping (Windsurfing magazine SURF August 1979, pages 32-34) and generally consist of a wide webbing, for example of the size of seat belts in automobiles . To increase the rigidity and for padding, this webbing is usually covered with laminated neoprene, which is sewn together to form a tube. Known foot straps, which are so large that you can easily slip in and out, since you take different foot positions on different courses, are in several places on the deck Surface of the windsurf board attached. The classic arrangement here is that, for example, three loops are attached at approximately the same distance on the connecting line between the front edge of the fin and the end of the sword box, while on both sides of the sword box, at an opening angle of 45 V, further pairs of such foot loops are arranged outwards are attached. In known foot straps, the webbing is glued to the roughened board at both ends or by means of dowels or the like. additionally screwed.

Known foot straps have the disadvantage that after the fastening of the belt strap forming the foot strap on the windsurf board, the size of the foot strap opening is fixed. The main disadvantage of known foot straps, however, is that if there is a fall, there is a possibility that the loop will not come out quickly enough, since the foot can become jammed in the fall, which represents a considerable safety risk. This disadvantage was avoided according to an earlier proposal by the applicant (cf. DE-OS 29 45 235.5-22) in that the foot strap is connected at least at one end to the windsurfing board by means of a device which, in the manner of a safety binding, releases the ski In the event of a fall, the foot ensures that the foot strap opens when the load is adjustable when the load is higher.

The invention has for its object to provide the lightest and most robust foot strap of the type specified above.

In the case of a foot strap of the type defined in the introduction, this task is essentially solved in that the - 3 -

Axis is provided on a clip-like part, that the clip-like part is connected to the webbing, that a housing is provided and is firmly connected to the windsurf board, that the housing has a rigidly attached holding axis, and that the clip-like part has the holding axis from above engages under adjustable pretension and can be separated from the holding axis at the top.

The invention creates a particularly simple and, what is of particular importance, light construction. Another advantage is that none of the parts of the fastening, which acts like a safety binding when skiing, can be lost after being released.

An advantageous further development of the invention can be achieved in that the clip-like part is designed as a plastic part with a slot or axis receiving the webbing, that the width of the clip-like part corresponds to the length of the holding axis and that a bore receiving the holding axis is provided which has a downwardly open slot for passage of the axle.

In a particularly preferred embodiment according to the invention, a further slot running parallel to the hole is provided on the top of the hole, a hole penetrating the slot being provided, a screw being arranged in the hole and being screwed into an abutment in this way that the spring element is preloaded adjustable against the outside of the bracket-like part.

OMH A helical spring can be provided as the spring element, which surrounds the helix, however, leaf springs arranged on both sides of the kla merarti.geπ part are preferred.

In order to reduce the risk of injury, the housing is preferably flush with the top surface of the windsurfing board. sunk.

The screw preferably has an enlarged head with knurling, the bore penetrating the slot being arranged such that in the installed position the knurling of the screw protrudes just above the surface of the deck or is at least accessible from it.

It is obvious that the proposals according to the invention create a component which can be produced cheaply and which fully assumes the function of a safety binding for foot straps of this type. The release torque under which the clip-like part detaches from the holding axis can be changed by changing the prestressing of the spring element.

U,

In a particularly preferred embodiment, an adjusting wheel is arranged on the threaded portion of the screw for adjusting the prestressing of the spring elements and is held in the respectively selected rotational position by means of a locking device.

In detail, a Ausfüh¬ particularly preferred approximate shape according to the invention in the wer¬ created, that the spring element cam by additional Stellen- in conjunction with the screw in addition ^• is stepwise adjustable. In this case, an embodiment is preferred in which a quick release device is formed by the additional position cams. This achieves the advantage that, when the clip is released from the anchorage on the board, it is not necessary to actuate the adjusting wheel in order to fasten the clip again to the anchorage. For this purpose, only the quick release device has to be actuated.

In particular, this embodiment can be further developed in that a fixed locking part against rotation is arranged on the spring element, with which a movable locking part, which contains the position cams, cooperates. The movable latch part preferably has an easily accessible lever, which can also be actuated easily in emergency situations, for example when a shoe gets caught in the loop, in order to reduce the triggering force.

Further preferred details essential to the invention result from the following description and the patent claims attached thereto.

OMP

1 The invention is explained in more detail below on the basis of exemplary embodiments illustrated in the drawings.

It shows:

1 shows a sectional view of a part of a foot strap on the side where it is connected to the wind surfboard by means of the device which can be changed in the triggering moment and serves to open the foot strap;

FIG. 2 is a perspective view of the housing of the device illustrated in FIG. 1;

3 shows a perspective view of the clamp-like part.

4 shows a top view of a particularly preferred embodiment according to the invention;

Fig. 5 is a sectional view of Fig. 4 along the line V-V;

6 shows a sectional view along the line VI-VI according to FIG. 4;

Fig. 7 is a sectional view taken along the line VII-VII of Fig. 4;

FIG. 8 shows a detailed side view of the clamp-like component of the embodiment according to FIG. 4;

Fig. 9 is a sectional view taken along the line IX-IX of Fig. 8;

10 shows a plan view of the upper edge of the component according to FIG. 8;

11 shows a sectional view of the component along the line XI-XI of FIG. 9;

12 to 14 show detailed details of the screw of the embodiment according to FIGS. 4 to 7;

15 shows a side view of the clamping lever of the quick clamping device of the embodiment according to FIGS. 4 to 7;

16 shows a plan view of FIG. 15 in the direction of arrow XVI according to FIG. 15;

Fig. 7 is a sectional view taken along the line XVII-XVII in Fig. 15; ^ -rrFFT- Fig. 18 is a sectional view taken along the line XVIII-XVIII in Fig. 15;

19 shows a side view of one of the spring elements of the embodiment according to FIG. 4 ff .;

Fig. 20 is a sectional view. in the plane XX-XX of Fig. 19;

21 ^"a rear view of the adjusting wheel of the embodiment according to FIG. 4 ff .;

F1g. 22 is a sectional view taken along line XXII-XXII of FIG. 21;

Fig. 23 is a side view of Fig. 21;

Fig. 24 is a side view of a locking device for the adjusting wheel according to Fig. 21 to 23;

FIG. 25 is a sectional view of FIG. 24 along the line XXV-XXV;

Fig. 26 is a sectional view of Fig. 24 along the line XXYI-XXVI; and

Fig. 27 to 30 details of the non-rotatable part of the quick release.

^* V-

OP - 9

As can be seen from FIG. 1, the webbing 1 forming a foot loop is held by an axis 2, which is formed in one piece with a clip-like component 3 in the exemplary embodiment.

In the region labeled 4 sailboard is a Ge housing 5 inserted such that it is flush with the surface Decks¬ ^'. 6 The housing 5, which forms a recess 7 in the deck surface 6, contains a holding axis 8 which, if all the parts consist of plastic, can be formed in one piece with the housing 5.

As illustrated, the clip-like part 3 overlaps the holding axis from above, which is received in the installed position by a hole 9 extending over the entire width of the clip-like part 3 in a non-positive and positive manner.

The bore 9 is open at the bottom by means of a slot 10, so that the clip-like part 3 can be pushed over the holding axis 9 from above.

To form two resilient legs 11 and 12 of the clip-like part 3, a further slot 13 is also provided above the bore 9, the height of which depends on the intended suspension properties when the clip-like part 3 is triggered.

The slot 13 is penetrated by a bore 14 above the bore 9 transverse to the main extent of the bracket-like part 3. The bore 14 is formed on the right side in Figure 1 as a smooth bore 15 and in the same view on the left side of the slot ^"13 as Geweindebohrung 16th In the ¹ bore 14 is from the smooth bore 15 forth

Screw 17 screwed in. The screw 17 has an enlarged head 18 which is provided with a knurling 19. The . ^' Threaded bore 16 forms

5 this embodiment, therefore, a generally designated 21 abutment.

Between the enlarged head 18 and the outside of the bracket type gene component 3, a coil spring 20 is arranged as a spring element 22 _IQ , the compressive force of which can be changed by adjusting the screw 17.

The width of the clamp-like component 3 essentially corresponds to the total length of the holding axis 8.

15 As shown in FIG. 1, the arrangement is such that the position of the bore 14 is such that the knurling 19 understands slightly above the deck surface 6 of the windsurfing board 4. If necessary, the bore 14 can also be arranged somewhat lower, so ^* -

20 is long guaranteed that the screw 17 is adjustable from the top.

From the above description it is apparent that the clip-like part 3 integral binding manner of a safety ₂ 5 can be separated from the holding axis. 8 Essentially, the. Lamb-like component represents a kind of clothespin, the release force of which can be adjusted by the holding axis 8 via the spring 20.

1 to 3 only one exemplary embodiment is illustrated, it being pointed out that the illustrated wall thicknesses in no way have to correspond to the actual conditions. The wall thicknesses and dimensions to be used, in

35 special slots 10 and 13 depend on the

Suspension properties of the plastic used for the clamp-like part. A particularly preferred embodiment according to the invention is illustrated in FIGS. 4 to 30 in all constructive individual pages. For the same parts as in ^{^'the'} Ausfühhungsfor according to Fig. 1 to 3 were used in this case, the same reference numerals, and their function to the above description can be referred ver¬.

. As I 4.ersichtl of Fig, ^is' the housing 5 designed differently embodiment by the recess 7 is a somewhat T-shaped having shape, wherein the clamp-like: TEI1 3 in the transverse ^'in the veranschau¬ thin web of ^the' T arranged is.

In the embodiment according to FIGS. -4 to 30, the spring element 22 is formed by two metal leaf springs 24 which are attached on both sides to the outer surface of the clip-like part 3 or its legs 11 and 12 and which are light in the plane of the clip-like part are curved ^' (see FIGS. 19 and 20). With this form of the spring element 22 formed by the metal leaf springs 23, 24, a better distribution of the compressive force applied by the screw 17 over the entire length of the clip-like part 3 is achieved. Furthermore, this ensures that the spring properties in the manufacture of such Brackets 3 are foreseeably kept constant.

In the exemplary embodiment according to FIGS. 4 to 30, the abutment 21 is formed by the head of the screw 17, the bore 14 in the bracket-like part 3 being continuously smooth. On the side of the clamp-like part 3 facing away from the head 18 of the screw 17, a quick-release fastener, generally designated 25, is provided on the shaft of the screw 17 in the illustrated embodiment, which is explained in more detail below. Instead of knurling 19 In the described embodiment of the first embodiment, on the thread section of the screw 17 there is provided an adjusting wheel 26 which is in threaded engagement therewith and which is provided with numerals on its circumference in order to be able to check the setting of the triggering force . A locking device 27 is also provided behind the ^" setting wheel ^{" in} order to hold the selected setting of the setting wheel 26.

FIG. 5 shows a sectional view along the line VV of FIG. 4. As can be seen, in this exemplary embodiment, the axis 2 holding the webbing 1 is made of stainless steel as a plug-in axis, which press-fits into the bores 28 of the clip-like part 3 is held by means of adhesives or the like. The holding axis 8 is also formed as a stainless steel axis. and is it seated in bores 29 from the other housing 5 to a corresponding one? Provided frame-like reinforcements 30.

As can be seen in particular from FIGS. 7 to 10, the clip-like part 3 is provided on both outer surfaces with two integrally formed, dumb-shaped projections 31, 32, 33, 34, each of which engages in two bores 35, 36, which each in the leaf springs 23, 24 are provided (see FIG. 19).

This construction ensures during installation that the springs 23, 24 are centered and precisely aligned. Each of the springs 24 is also provided in the middle with a passage 37 for the shaft of the screw 17 (see FIG. 19).

As can also be seen from FIG. 20, the leaf springs 23, 24 are slightly curved in the direction of the clip-like part 3, so that for secure and

essentially 1 inienial plant a lower edge 38 and an upper edge 39 are formed. The curvature, moreover, the ^{'co-determined} by the leaf springs 23 24 exerted on the clip-like part 3 force. 19 and 20 show the leaf spring 24 approximately on a 2: 1 scale.

As can be seen from FIGS. 6, 7 and 9, the clamp-like part 3 with the lower edge 38 and the upper edge 39 is provided with corresponding contact surfaces 40, 41, 42, 43, between which the leaf springs 23, 24 in the direction of the Can deflect legs 11, 12, since a corresponding space is provided here. 12 to 14, the screw 17 is illustrated in detail on a double-enlarged scale. As shown, the screw 17 has a shaft 44, which consists of a smooth shaft part 45 and a threaded section 46. Below the head 18, the screw 17 has a first flat 47, the mutually parallel surfaces of which lie at a distance which corresponds approximately to the diameter of the shaft 44. In the installed state, this flattening is received by the passage opening 37 of a leaf spring 23 or 24, which is designed correspondingly rectangular (Fig. 19). It is hereby achieved that after the screw 17 has been inserted, it is held against rotation in the leaf spring 24, the lugs 31 to 34 received in the bores 35, 36 forming a counter bearing against this rotary movement.

At the free end of the threaded section 46 of the shaft 44, a further flattening 48 and a counter bore 49 with a thread extending into the screw 17 are formed. These parts are used for holding and mounting the locking device 27 described below, which together with the screw 17

OMPΓ - 14 - should be rotatable.

The details of the ^'direction with the wheel 26 acting zusammen¬ Rastei 27 will become apparent from FIGS. 21 to 26, in which these parts are illustrated in about twice enlarged scale. 21 to 23 show the setting wheel 26, which in the embodiment also consists of plastic. A threaded insert 52 is fastened in a concentric, reinforced hub section 51 in a bore 50 of the adjusting wheel 26 which is located in the center-center, the internal thread 53 of which corresponds to the external thread of the threaded section 46 of the screw 17. The

Hub portion 51 is from a cup-like portion

54 surrounded, which is provided on its outside with Griff¬ notches 55, and also carries numbers that are advantageous for recognizing the selected setting. Axially extending notches 56 are provided on the inside of the pot-like section 54, which have beveled side walls and which interact with the latching device 27 described with reference to FIGS. 24 to 26 or form part of the latching device 27.

. The device in Fig 24 to 26 illustrated ^' ".Rastein- is part 58 of a disk-shaped plastic, on which an arm integrally formed 59. Arm 59 has a pawl-like change

60, which is intended for engagement with the notches 57. The disk-shaped plastic part is provided with a Langlόch 61 whose dimensions ent the flattening 48 at the free end of the screw 17 ^τ talk (See. Fig. 12 to 14). By means of the elongated hole

61 and a screw 62, which is sketchily illustrated in FIG. 2, the latching device 27 is fastened in a rotationally fixed manner to the free end of the screw 17 by screwing the screw 62 into the inner bore 49

O PI ^" Becomes. In the installed position, the arm 59 then engages in the pot-like section 54 of the adjusting wheel 26 and holds the adjusting wheel 26 in each selected rotational position by engagement of the pawl section 60 in one of the notches 56, against a relative rotation with respect to the screw 17 , such relative rotations can occur in particular when the quick-release fastener described below is actuated. The length of the arm 59 in the axial direction of the elongated hole 61 corresponds approximately to the setting path of the setting wheel 26.

In the following, with reference to FIGS. 15 to 18 and 27 to 30, respectively, the above-mentioned cut closure will be used. 25 explained in more detail.

The quick-release fastener 25 consists of a movable bolt 63 illustrated in FIGS. 15 to 18 and a fixed bolt 64 illustrated in FIGS. 27 to 30. The drawings show the bolts 63 and 64 on a double scale.

The movable bolt 63 is hergestellt- one piece from a plastic in the embodiment, ^'and has a hub portion 65 on which cut on the unthreaded Schaftab¬ by means of a central bore 66 of the screw 45 is mounted 17th (See Fig. 6). The hub section 65 is connected in one piece to a cranked lever section 67, by means of which the movable latch 63 can be pivoted. At the lower part of the lever section 67 is. the lever section below the crank 68 is provided with reinforcing ribs 69 to 72. The crank of the lever ^abs' chnittes 63 is designed so that clothes in the latched Normalstel1, below with reference still being made to the next, the upper portion ver¬ 73 parallel to the top surface 6 of the wind surfboard 4 runs (See. FIG. 4). On the clip-like member 3 in the installation facing ^'side position of the boss portion 66 are provided symmetrically to the bore 66 cam surfaces 74, 75, 76, which cooperate with corresponding cam surfaces of the fixed latch member 64th Of these cam surfaces, the cam surface 74 corresponds to a pressure position that is not deep, engaged, the cam surface 75 corresponds to a high central position, and the cam surface 76 corresponds to a deep, engaged normal !! ung.

The fixed locking part 64 illustrated in FIGS. 27 to 30 likewise consists of a plastic part and has a central bore 77, by means of which the locking element 64 is also mounted on the smooth shank section 45 of the screw 17. On the side illustrated in FIGS. 29 and 30, which faces the leaf spring 23 in the installed position according to FIG. 6, the locking part 64 is provided with an essentially rectangular projection 78 which, in the installed position, in the position shown in FIG Leaf spring 23 engages provided opening 37. In this way, the fixed bolt is held on the leaf spring 23 in a rotationally fixed manner in the installed position.

On its side illustrated in FIGS. 27 and 28 and facing the movable locking part 63, the locking part 64 is provided with bevelled, protruding locking cams 79 which cooperate with the cam surfaces 74, 75, 76.

As can be seen in particular from FIG. 6, the tendon formed by the locking points 63 and 64! 1 closure 25 between the setting wheel 26 and the leaf spring 23 of the ^" clamp-like component 3. The effect is such that the movable locking part 63, which is rotatably mounted on the screw 17, can be pivoted by 90 ° relative to the fixed locking means 64, so that Various additional pressures can be exerted on the leaf springs 23, 24 by the pulling force exerted on the screw 17 in the direction of the left end of FIG. 6 by means of the cams 74, 75, 76 and the detent cam ^' n ^' 79. In the highest position of the ^' lever 67, the cam 74 takes effect and the force exerted by the leaf springs 23, 24 on the clamp-like component is correspondingly increased. In the latched normal position, the clamp-like component 3 is pressed together by an additional predetermined amount via the cams. So that the adjusting wheel 26 is not moved during the pivoting movement of the bolt part 63, the locking device 27 is effective, which holds the adjusting wheel 26 against a relative movement relative to the screw 17. The movable bolt 63 is locked in both end positions with respect to the fixed bolt 64. The movable bolt 63 is actuated as an interlock 25 so that, for example when the clamp 3 is released from the axis 8, it is not necessary to actuate the adjusting wheel 26 in order to move the clamp-like component 3 back towards the axis 8 This is done by actuating the lever 67 and correspondingly pivoting the locking part 63. Likewise, the lever 67 and correspondingly the movable locking part can be used in order to trigger easily in emergency situations, for example if the shoe gets caught in the loop, by reducing the triggering force to reach.

All from the description, the claims and

, ^"And advantages drawings arising characteristics / ein¬ of the invention, finally constructive details and spatial arrangements can be essential to the invention both alone and in be¬ liebiger combination.

Claims

Board the foot strap on windsurf, which is provided individually or in groups on the top surface of the windsurf board and consists of a section of a belt which is connected at both ends to the top surface of the windsurf board, at least one end of the belt using a device verbunden.ist with the wind surf board, comprising a webbing hal ^f ternde axis, wherein the device for releasing the foot strap in üffnungs- siπne triggered and latched in the closing direction ausge¬ forms, and wherein the triggering moment of Vorrich¬ tung is adjustable and further the closed position of the device is held by a form fit of a molded body and the molded body is prestressed by a spring element into the locked position with adjustable spring force, characterized in that the axis (2) is provided on a clip-like part (3) that the clip-like part connected to the webbing (1) that a housing (5) is provided and is connected to the windsurfing board (4), that the housing (5) has a rigidly attached holding axis (8) that the la merike part, (3) the holding axis (8) from above with over the spring element (22, 20) adjustable preload engages and can be separated from the holding axis (8) upwards.

2. foot strap according to claim 1, characterized in that the clip-like part (3) is designed as a plastic part with a webbing (1) receiving slot or axis (2) that the width of the clip-like part (3) substantially the length of the support shaft (10) corresponds ,, ^'that- the - clamp-like part (3) the support shaft (8) engages positively up

, ^Includes' ■ receiving bore (9) having a slot (10) for passing the support shaft (8) side on the Unter¬ that a running parallel to the bore (9) slot (13) is provided above the bore (9) That a Schli.tz penetrating bore (14) is provided, and that a screw (17) is arranged in the bore (14) and screwed into an abutment (21) such that the spring element (22, 20) against the Outside of the bracket-like part (3) is preloaded adjustable.

3. foot strap according to claim 1 or 2, characterized gekenn¬ characterized in that the spring element (22) is a helical spring (20).

4 _.. .Foot strap according to claim 1 or 2, characterized in that the spring element (22) is formed as a leaf spring (23, 24) arranged on both sides of the clamp-like component (3), which over essentially the entire width of the clamp-like component (3 ) pass.

5. foot strap according to claim 2 or 4, characterized gekenn¬ characterized in that the abutment (21) is formed by a setting wheel (26) which is rotatable by means of a thread (53) on the threaded portion (46) of the screw .

6. foot strap according to claim 5, characterized in that the adjusting wheel (26) is provided with a latching device (27) which prevents a relative movement of the adjusting wheel (26) relative to the screw (17) in its latched positions.

7. foot strap according to one of the preceding claims, characterized in that a Schnellspannein¬ direction (25) is provided, by means of which the Feder¬ elements (22) can be loaded and relieved.

Foot strap according to claim 7, characterized in that the quick-release device moves out of a pivoted bearing via a lever (67) on the screw (17). There is a bolt part and a fixed bolt (64) held on the clamp-like component (3) in a rotationally fixed manner and that between the bolt parts (63) and effective cams (74, 75, 76, 79) are provided ^* , which are the Change the preload of the spring elements (22).

9. foot strap according to claim 8, characterized in that the movable latch part (63) can be snapped into two end positions.