WO2019141921A1

WO2019141921A1 - System for fastening a shoe to a footrest in a rowing boat, and associated footrest

Info

Publication number: WO2019141921A1
Application number: PCT/FR2019/050048
Authority: WO
Inventors: Thierry MANO
Original assignee: Mano Thierry
Priority date: 2018-01-16
Filing date: 2019-01-10
Publication date: 2019-07-25
Also published as: FR3076810A1; FR3076810B1

Abstract

The invention relates to a system for fastening a shoe to a footrest (1) in a rowing boat, said shoe having a sole. According to the invention, such a fastening system comprises a device for attaching the shoe to the footrest (1), based on the deployment of fastening elements (105) in a cavity in the sole of said shoe in order to effectively hold the shoe against the footrest (1) during the rowing activity. In order to disengage the shoe from the footrest (1), the attaching device can be deliberately deactivated by applying pressure to a push-button (201) that is accessible to the rower seated in the boat. This fastening device has the special feature of being able to be automatically deactivated, in the case of accidental overturning of the boat, in order to allow the user to be able to freely extract the boat and thus reduce the risks of drowning.

Description

SYSTEM OF FL XATI ON OF A SHOE BOARD OF AN AVI RON BOAT AND RESIDENTIAL

The invention relates to a system for attaching a boot to a footrest of a rowing boat and to the associated footrest. Generally, an individual practicing rowing in a boat, sits on a seat, which is movable in translation along a longitudinal axis of this boat. The individual wears shoes, which are fixed on a footrest, so that his feet can not slide on said footrest during the practice of this activity.

The fastening systems of a shoe on a rowing boat footrest exist and have already been the subject of patents. For example, patent application US2012 / 0234226, which relates to such a fastening system, and whose particularity is to be able to adjust the lateral movements of the boot on the footrest of the boat can be cited. rowing. However, while this fastening system has good performance in binding the shoe on the footrest, it nevertheless has a low level of security.

Indeed, in an ideal situation, a system for attaching a boot to a rowing boat footrest must have two essential characteristics:

ensuring a solid attachment of the boot on the footrest, so as to prevent the boot from becoming detached from said footrest as soon as the practitioner exerts pressure or tension with his foot,

permitting instantaneous and easy separation of the boot from said footrest, in the event of an accidental capsizing of the rowing boat, so as to allow an individual to escape easily from said boat.

A fastening system according to the invention is easy and fast to use, while having a high level of safety vis-à-vis a practitioner, especially during an accidental capsizing of the rowing boat.

The invention relates to a system for attaching a boot to a footrest of a rowing boat, said shoe having a sem it. According to the invention, such a system comprises a device for attaching the boot to the footrest, comprising a release button having a central protrusion, a movable relay ring movable in rotation, a projecting base in which is housed. and protruding said ring, locking elements and independent fastening elements, said trigger button being slidably mounted around the projecting base so that the protrusion is found inside the relay ring, the semia having a recess with a bottom and intended to come around the trigger button, a pressure exerted by the bottom of the évidem ent on the trigger button causing a displacement in translation thereof resulting in a the ring is rotated by the presence of complementary reliefs present on an external surface of the protrusion and on an inner surface of the ring, causing a activation of the locking elements initially placed between the ring and the projecting base and a protrusion of the fixing elements outside the trip button, said fixing elements being initially placed under said triggering button and above the ring and the em projecting base. In a rest position, the ring emerges from the protruding base, preferably by means of a spring biased biasing member. When a practitioner places his foot on the footrest in such a way as to make the trigger button penetrate into the recess of the sole of his shoe, he thus causes a translation of the protrusion which, by interacting with the relay ring , will generate a rotation of said relay ring. This rotation of the ring is due to the presence of reliefs on the protrusion interacting with complementary reliefs of said ring. This movement in rotation of the protruding ring will sim ultémém ent ent an activation of the élém ents locking. Concomitantly, the translation in translation of the triggering button will generate sim ultaném ent an activation of the fasteners. The shoe will thus be found fixed on the footrest thanks to the fasteners, without the possibility of being detached from said footrest by means of a simple withdrawal without effort. The fastening elements can be constituted by any type of parts that can protrude laterally from the trigger button, as by eg pawns or studs. Once the fastening elements have thus been deployed in the recess of the foot of the shoe under the action of the pressing of the trigger button, they play the role of shackles preventing the boot of be detached from the footrest. The locking means are preferably inserted between the relay ring and the projecting base. They each occupy a housing advantageously made in an inner surface of said em projecting base, in order to prevent the trigger button to go up. These locking elements may for example consist of spherical balls. A normal withdrawal of the shoe from the footrest in the case of a stop of the rowing activity, is effected by means of a com m e organ able to cause a m ise in rotation in the opposite direction of the relay ring to disable the locking elements and the fastening means.

Advantageously, the locking elements are spherical balls placed between the relay ring and the projecting base, the projecting base having first through holes and the triggering button having blind holes, a rotational movement. of the ring passing each ball from a retracted position to an extended position for which it protrudes from the first hole to enter a blind hole to block the trigger button relative to said protruding base.

Preferably, the operation of each spherical ball to move from a retracted position to an extended position is a translational movement occurring radially relative to the projecting base.

Preferably, the relay ring and the protruding base are concentric cylindrical walls, the protruding base comprising four first holes and the fastening system comprising four spherical balls. Advantageously, the four holes are distributed homogeneously around the circumference of the em base projecting.

Advantageously, each fastening element is a part having a thin section and an enlarged section, the trigger button having second holes whose dimensions are greater than those of the thin section and smaller than those of the enlarged section, a pressure on the trigger button passing the fastening elements of a position retracted above the projecting base at an extended position for which the end portion extends from said second hole outwardly of the release button. In this way, each fastener is trapped in a second hole, the enlarged portion retaining the fastener preventing it from coming out of said second hole. Preferably, the second holes are through holes. The fastening elements, emerging from the trigger button, are deployed in the recess of the sole, and thus play the role of retaining stops to maintain the shoe on the footrest, without the possibility of being removed without a specific action. Preferentially, the fastening elements are of compact form, their length being greater than their width, but being less than or equal to 1 .3 times said width.

Advantageously, each fastening element is of ovoid shape, the thin section being comparable to a small half-egg and the enlarged section being assimilable to a larger half-egg. In this way, each attachment member has two rounded ends, one corresponding to the small-sized egg and the other to the larger egg-size. Since the trigger button will sink around the projecting base, the fasteners that are inserted between the ring and the base will tend to slide on the walls of said ring and said projecting base. Rounded contact surfaces between the fastening elements and the ring and / or the projecting base will promote this sliding by limiting the contact surfaces.

Preferably, the movement of each fastening element to move from the retracted position to the deployed position is a movement com binated with a translation dictated by the movement of the trigger button and a radial translation to the outside the protruding base, caused by the sliding of said fastening elements on a beveled wall of said em projecting base.

Preferably, the actuation button has four second holes and in that said system has four fasteners. Advantageously, the four holes are distributed homogeneously around the circumference of the em base projecting. Advantageously, the recess of the sole of the shoe is delimited by a cylindrical side wall, said cylindrical wall comprising an annular groove for receiving fastening elements when they project from the trigger button.

Advantageously, the ring is extended by at least one rod, said fixing system comprising a m asselotte intended to move by rotation to come to affect said rod when the footrest pivots in one direction under the effect of a accidental capsizing of the rowing boat, said flyweight being intended to imitate a reverse rotation movement of the trigger ring in order to release the locking elements and to retract the fastening elements. In this way, the shoes automatically separate the footrest as soon as it has reached a significant angle of inclination, translating a capsize of the rowing boat. Preferably, the m asselotte moves in a plane that is perpendicular to an axis of extension of the rod. The effect of the mating on the rod causes a reverse rotation of the trigger ring to inactivate the locking elements and the fasteners. Preferably, the movement of the weight before im pacting the trigger ring is in arc-circle. The m asselotte is associated with a bidirectional rotary hydraulic damper, preventing it from moving when the footrest does not exceed a threshold inclination angle. In this way, the m asselotte is not likely to disassociate the shoe while the practitioner is in full effort in the rowing boat. Preferably, the m asselotte is metal or plastic or brass.

Preferably, a fastening system according to the invention comprises an intermediate mechanism for reversing the direction of rotation of the trigger ring by means of an action on at least one of said rods, and able to be triggered by an impact of the weight under the effect of its weight when the footrest pivots in the other direction, under the effect of an accidental capsizing of the rowing boat, so as to allow to free the locking elements and to retract the fasteners even in the other direction of pivoting of said footrest. Indeed, if the m associates by pivoting in one direction will cause a rotation in the opposite direction of the ring trigger to disengage the shoe from the footrest, it will not cause a pivoting of said ring also in the opposite direction, if said m asselotte pivots in the other direction. The intermediary mechanism, when imparted by the swiveling helper, reacts by exerting a push on the stem of the trigger ring, in a direction for which it will disengage the shoe from the footrest.

Advantageously, the ring is extended by two rods, and the projecting base comprises two arcuate and diametrically opposite slots, said ring being formed in the projecting base by means of an insertion of each rod. in a slot. In this way, when the fastening system is in a rest position, the two rods are held at one end of each slot and when said system passes into an active fastening position, the two rods have moved towards another end of each slot. In this way, the length of each slot will define the amplitude of rotation of the ring.

Preferably, the weight is associated with a retaining device preventing said flyweight to rotate inertia, when the inclination of the footrest has not reached a predetermined threshold angle.

Another object of the invention is a footrest comprising a frame on which are placed two separate bearing elements, each having a fastening system according to the invention, and intended to receive a shoe from a practitioner. seated in said boat, each of said elements having a front portion and a rear portion m ontées at least one rod, the distance between said two parts being adjustable along said at the footrest is flexible to use, because it allows to adapt to the size of the shoes of a practitioner so that it exercises its rowing activity in conditions of optimal performance and comfort. Preferably, the rod comprises a series of notches and the front part and the rear part can be moved along this rod, then each fixed in a position thanks to the presence of these notches. The rear part of each support element is intended to receive the heel of the shoe and the front portion of said element is intended to receive a front portion of said shoe. Advantageously, the frame on which the two bearing elements are fitted is adjustable in width in order to adapt to the different widths and architectures of rowing boat hulls, the frame having locking elements capable of freezing the position. said frame corresponding to a gap dictated by the width of a given shell. Thanks to this possibility of variable width of the frame, the practitioner can adjust the distance of his shoes in order to exercise his activity under improved conditions of comfort. The width of the frame is its dimension along an axis connecting the two feet of a practitioner.

Preferably, the spacing between the two support elements can be further adjusted once the locking elements of the frame have been activated, in order to obtain a fine adjustment of the spacing between said electrometers. support. Indeed, once the frame has been fixed in a position corresponding to a given width, the practitioner can still fine fit the spacing of his feet without having to change the width of said frame. In other words, the practitioner has two levels of adjustment of the spacing of his feet, one through the width of the frame adaptable to the different width of shells, and the other finer once said width of the frame has been frozen. This fine adjustment, respecting the m orology of the practitioner, can for example be achieved by means of a series of notches aligned with the frame, each support element can be moved along these notches.

Preferentially, each of said two support elements is mounted on said frame so as to converge or diverge the two shoes on said frame, at least one of said two support elements being connected to a device. orientation and guidance of the rowing boat. This possibility increases the flexibility of use of the footrest. Indeed, each practitioner may have slightly divergent or converging feet depending on his orphanology. A footrest according to the invention takes account of this singularity m orological adapting to the natural orientation of the feet of the practitioner. Moreover, thanks to this rotational mobility of the support elements, a practitioner can make the rowing boat evolve in the desired direction. Advantageously, by turning one of his feet to the right at the right, the boat turns right and turning one of her feet to the left the boat turns to the left.

The fastening systems according to the invention have the advantage of having a dual function, one permitting to ensure a solid attachment of the boot during one rowing practice phase, and the other allowing to ensure a high level of safety for a rowing practitioner, causing an instantaneous and systematic disconnection of said shoe, in the event of capsizing the boat. In this way, a person in difficulty during such a capsize, will have no particular action to menerate to release his shoes footrest, said release being performed automatically. They also have the advantage of being reliable and well controlled, to the extent that they are of simple design and involve a small number of parts. Finally, they have the advantage of being of a constant size and complexity, compared to existing fastening systems which do not have this dual function.

The following is a detailed description of a preferred embodiment of a fastening system according to the invention, with reference to the following figures:

FIG. 1 is a front view of a footrest according to the invention,

FIG. 2 is a sectional view of a fastening system according to the invention, showing a fastener inserted in a thickness of the sole of a shoe of a practitioner,

FIGS. 3A and 3B are two sectional views of a fastening system according to the invention, respectively in a rest position and in an active fixing position,

FIGS. 4A and 4B are respectively a perspective view and a bottom view of a projecting base of a fastening system according to the invention,

FIG. 5 is a side view of a release button of a fastening system according to the invention,

FIG. 6 is a perspective view of a relay ring of a fastening system according to the invention, FIGS. 7A and 7B are two sectional views of a fastening system according to the invention, m etching locking elements respectivem ent in a rest position and in an active locking position,

FIGS. 8A and 8B are two sectional views of a fastening system according to the invention showing fixing elements respectively in a rest position and in an active fixing position,

FIGS. 9A and 9B are partial perspective views of a fastening system according to the invention, showing the locking elements and the fastening elements with respect to the relay ring respectively in a rest position and in a an active fixing position,

FIGS. 10A and 10B are partial perspective views of a fastening system according to the invention, showing the locking elements and the fastening elements with respect to the protruding base respectively in a rest position and in an active fixing position,

- Figures 1 1 A and 1 1 B are two views from below of a fastening system according to the invention m trouting a release mechanism respectivem ent in a first unlocking position when the boat capsizes in one direction and in a second unlocking position when the boat capsizes in another direction,

FIG. 12 is a view from below of a fastening system according to the invention showing an unlocking mechanism triggered normally to separate a shoe from a footrest according to the invention,

FIG. 13 is a side view illustrating an example of a fastening element of a fastening system according to the invention,

FIGS. 14A and 14B are respectively a side view and a top view of a grip piece inserted into a thickness of the sole of a practitioner's shoe.

Referring to Figure 1, a footrest 1 according to the invention, which is intended for the practice of rowing in a rowing boat, comprises two identical bearing elements 2, 3, one of which 2 is intended to serve as a support for a right shoe of a practitioner, and the other 3 is intended to serve as a support for a left shoe of this practitioner. Each support element 2, 3 comprises a front portion 4, a rear portion 5 and two parallel rods 6, 7 notched connecting said front portion 4 and said rear portion 5. The front portion 4 and the rear portion 5 are separated, and are adapted to respectively receive a front portion of the shoe and the heel of said shoe. The two notched rods 6, 7 are designed to be able to adjust the distance between the front portion 4 and the rear portion 5 to allow each support member 2, 3 to adapt to the size of the shoe. The gap separating two successive notches of each of the rods 6, 7 m atérialise the precision with which will be adjusted the distance between the front portion 4 and the rear portion 5 of each élém ent support 2, 3. Each element of 2, 3 is a piece of variable length extending along a longitudinal axis, the dimension of the rear portion 5 along said longitudinal axis being less than that of the front portion 4. The front portion 4 of each member Support member 2, 3 includes a fastening system 100 of a rowing practitioner's shoe. The two support elements 2, 3 are mounted on a rectangular frame 8 having two elongated bars 9 and parallel, and three short and parallel bars 10, perpendicularly connecting said two elongated bars 9. More precisely, two short bars 10 connect the two elongated bars 9 at their extremities and a short bar 10 connects the two middle of said two elongated bars 9. The two bearing elements 2, 3 are m ontés on the two elongate bars 9 of the frame 8, extending parallel to the short bars 10 of said frame 8.

The frame 8 is made of three distinct pieces, a H-shaped central piece and two U-shaped end pieces slidably fastened to said central piece to form the frame 8. In this way, thanks to the possible sliding of these end pieces on the central part, the two elongated bars 9 of said frame 8 are of aj ustable length. In other words, since the two support elements 2, 3 are mounted on the sliding parts of the frame 8, the spacing between said two support elements 2, 3 can be adjusted by sliding of said two pieces of support. extreme on the central piece, to adapt to the different width and architecture of rowing boat hulls.

Once the form of the frame 8 has been fixed to obtain the spacing dictated by the different widths of shells 2, 3, the spacing of the two support elements can be further adjusted without interfering with the shape of said frame 8. Indeed, once the shape and size of said frame 8 have been fixed, the two support elements 2, 3 can still be moved along the elongated bars 9 of the frame 8, to finely adjust their position along said bars 9 in order to respect the morphology of the practitioner. Indeed, the elongated bars 9 are at least partly notched along their length, in order to fix a support member 2, 3 to the desired position.

At least one of the two support elements 2, 3 is connected to a device for orienting and guiding the rowing boat, such as for example a rudder placed under said boat. For this purpose, a piece 1 6 is pivotally mounted on at least one of said bearing members 2, 3, and a wire 15 connects the pivoting piece 16 to the orientation and guiding device. In this way, a slight rotation of the boot on the footrest 1, causes a rotation of the part 16 which exerts a tension on the wire 15 causing a pivoting of the device for orientation and guidance of the boat. Thus, if the practitioner turns his shoe in one direction on the footrest 1, the boat m odifies its trajectory in the same sense. The footrest 1 plays, in this case, the role of a support for a control member of the direction of the boat. The rider can thus modify the boat's trajectory without disturbing his rowing activity.

Referring to FIGS. 3A and 3B, the fastening system 100 which is placed in each of the front portions 4 of a bearing member 2, 3 serves to firmly secure a shoe of a rowing practitioner at footrest 1 of the boat. Generally, a rowing practitioner in a boat sits on a seat, which is movable in translation along a longitudinal axis of that boat. The practitioner wears shoes, which are fixed on the footrest 1, so that his feet can not slide on said footrest 1 during the practice of this activity.

This fastening system 100 comprises a release button 101, a projecting base 102, a relay ring 103, locking elements 104, fastening elements 105 and a locking / unlocking mechanism of the boot on the seat support. foot.

Referring to FIGS. 4A and 4B, the protruding em base 102 is a piece comprising a base 107 of square shape and constant thickness, from which emerges a cylindrical protrusion 108 hollow. The base 107 is a hollow part delimited by four lateral walls forming a square and a connecting wall 109 connecting said four lateral walls. This connecting wall 109 comprises a central cylindrical recess 110 from which emerge said protrusion 108 in a central position, said protrusion 108 and said recess 110 forming between them an annular space. The hollow protrusion 108 has a free end 112, which is remote from the connecting wall 109, and an end which is closed by said connecting wall 109. The free end 112 of the protrusion 108 is bevelled. Said protrusion has a series of four through holes 140 aligned along a circle and regularly spaced along the circumference of said protrusion 108. The recess 110 has a bottom, and it is said bottom which closes the end of the excrescence 108 digs. The bottom of the recess 110 which is placed around the protrusion 108 is pierced with three orifices 128. This hollow protrusion 108 is delimited by an inner surface and an outer surface, both of cylindrical shape.

Referring to Figure 4B, the portion 113 of the connecting wall 109 closing one end of the hollow protrusion 108, has two slots 114, 115 arcuate and diametrically opposed.

Referring to FIGS. 3A, 3B, 6, 9A and 9B, the relay ring 103 comprises a substantially cylindrical wall 116, and extended by two rods 117, 118 of equal length and implanted diametrically opposite on said cylindrical wall 116. in other words, said two rods 117,

118 emerge from a circular edge delimiting the cylindrical wall 116 of the relay ring 103. This cylindrical wall 116 has an outer surface

119 in which have been dug four holes 120 aligned along a circle embodying the circumference of said outer surface 119, said four holes 120 being regularly spaced along said circle. These holes 120 are blind. The cylindrical wall 116 also comprises an inner surface 121, in which four grooves 122, each L-shaped, have been dug and aligned along a circle embodying the circumference of said inner surface 121, said four grooves 122 being regularly spaced apart. along of that circle. Each groove 222 comprises a first segment 123 originating on the edge opposite the one from which the two rods 17, 18 emerge and extending parallel to the axis of revolution of the cylindrical wall 116 of the relay ring 1 03. Each first segment 123 is extended by a second segment 124 which is perpendicular to said first segment 124, said second segment 124 being slightly curved to follow the curvature of the inner surface 121 of said cylindrical wall 1 16. For the four grooves 122, the second segment 124 extends in the same direction relative to the first segment 123. The diameter of the outer surface 1 19 of the cylindrical wall 1 16 of the relay ring 103 is slightly smaller than the diameter of the inner surface of the hollow protrusion 108 of the protruding base 102, so that the relay ring 103 can be introduced into the hollow protrusion 108 of the protruding em base 102 while remaining on contact t.

Referring to FIGS. 3A, 3B and 5, the release button 1 01 has a widened cylindrical support 125 and a hollow cylindrical body

1 26 of reduced diameter relative to said support 125. Said support 125 is extended on one side by said hollow body 126, and on the other side by three pieces

1 27 regularly spaced on a peripheral circle of said support 125. These three pins 127 are intended to be inserted into the orifices 128 of the projecting base 102. The hollow cylindrical body 126 has a cylindrical side wall 129 closed to the one end thereof through a solid circular wall 130, the other end of said body 126 opening into the support 125 expanded. The body 126 has an internal protrusion 131 in the form of a cylindrical wall originating on the circular and solid end wall 130, and extending into the cylindrical side wall 129 of the hollow cylindrical body 1 26. This internal protrusion 131 has a cylindrical outer surface from which emerge four rounded studs 132 and regularly spaced along a circle in said outer surface. The cylindrical side wall 129 of the hollow cylindrical body 126 has a first series of four through-holes 133 aligned along a circle in said cylindrical wall 1 29 and regularly spaced along it, and a series of of four blind holes lined up along a circle in said cylindrical wall 1 29, and regularly spaced along it. These blind holes are hollowed out in an inner surface of said cylindrical side wall 129. The four through holes 133 and the four blind holes are offset along the axis of revolution of the cylindrical side wall 1 29 of the hollow cylindrical body 1 26.

With reference to FIGS. 2, 3A and 3B, the trigger button 101 is intended to be inserted around the projecting base 102 once the relay ring 103 has been placed in said projecting base 102.

Referring to FIGS. 7A, 7B, 9A, 9B, 10A and 10B, the locking elements 104 are constituted by four independent spherical balls, preferably made of metal or plastic.

Referring to FIGS. 8A, 8B, 9A, 9B, 10A and 13, the fastening elements 105 are constituted by four independent egg-shaped parts, preferably made of metal or plastic.

Referring to FIG. 13, each egg-shaped piece 105 includes a thin end 136 comparable to a small half-egg and an enlarged portion 137 being comparable to one more than one half-egg. large size, said end section 136 being connected to said enlarged section 1 37 by means of a truncated cone shaped strip 1 38. The longitudinal axis of each of said pieces 105 connects the end section 136 to the enlarged section 137 coinciding with the axes of revolution of said two sections 136, 137.

Referring to FIG. 3A, when a practitioner's shoe is not hooked to the footrest 1 by the fastening system 100, said fastening system is in a rest position, and ready for use. ployment. In this rest position, the relay ring 103 is placed in the hollow protrusion 108 of the em projecting base 102 so that each of the two rods 1 17, 1 18 are placed in one of the two slots 1, 14, 1 15 of said em protruding base 102, said relay ring 103 em erging said protrusion 1 08. The trigger button 1 01 comes to cap the protruding base 102 and the relay ring 103 which was previously inserted in said em projecting base 102, so that the internal protrusion 131 of the trigger button 101 is inserted into the relay ring 103, and so that the protrusion 108 and the relay ring 103 are found in the space of the trigger button 101 located between said internal protrusion 131 and the cylindrical side wall 1 29 of the hollow cylindrical body 126 of said knob 101. A prestressed spring 139 is inserted into the internal protrusion 131 of the release button 101, between the solid circular wall 1 of the hollow cylindrical body 126 of the release button 101 and the bottom of the central recess of the base protruding 103, to push the trigger button 101 and projecting it protruding above the relay ring 1 03. This prestressed spring 139 perm and also to maintain the relay ring 103 in a position for which the rods 1 17 18 are abutting at one end of the slots 14, 15.

Referring to FIGS. 3A, 7A, 9A and 10A, in this rest position, the locking elements 104 in the form of spherical balls are inserted between the relay ring 103 and the protrusion 108 of the projecting base 1 02, by being positioned in the holes 120 dug in the outer surface 1 19 of said ring 103 and in correspondence with the through holes 140 of the protrusion 108 of the em projecting base 102. At the same time, the fastening elements 105 under formed of ovoidal pieces, are situated above the hollow cylindrical protrusion 108 of the projecting base 102 and above the relay ring 103, so that their longitudinal axis extends radially with respect to said protrusion 108 and said ring 103. For this arrangement, the enlarged sections 137 are closer to the center of said protrusion 108 and said ring 103 than are the thin sections 136. The fastening elements 105 are placed in the same position. or the trigger button 1 01, to the right of the through holes 133 of said trigger button 101.

Referring to FIGS. 14A and 14B, the example of a rowing shoe specially designed for rowing with a fastening system according to the invention comprises an insert piece 151 having a side wall cylindrical 152 delimiting a cylindrical recess whose diameter is greater than the diameter of an outer surface of the cylindrical side wall 129 of the actuation button 101. This cylindrical recess is delimited by a bottom in the form of a circular wall 153. This cylindrical recess is widened by a groove 154 dug in the cylindrical side wall 152. The insert part 151 has an extension 155 in the form a tab extending radially from the side wall cylindrical 152 cylindrical recess del itant. This extension 155 ends in a secondary recess 156 intended to be inserted around a stud 17 of the part 16 secured in rotation to a bearing member 2, 3.

Referring to Figure 2, when a practitioner wishes to secure his shoe strung to his foot, to a footrest 1 according to the invention, it makes penetrate both the trigger button 101 in the recess of the insert part 1 51 and the stud 1 7 in the secondary recess 156 of said insert part 1 51. The bottom 153 of the recess of the insert piece 151 of the soleplate coming into contact with the trigger button 101 exerts a pressure on it, causing it to sink.

Referring to FIGS. 3B, 7B, 9B, 10B, the depression of the release button 101 in the footrest 1 causes several actions:

- A rotation of the relay ring 103 around its axis of revolution, by means of insertion of the rounded studs 132 of the internal protrusion 131 of the trigger button 101 in the grooves 1 22 in form of L of the cylindrical wall 1 1 6 of said relay ring,

A penetration of the locking elements 104 into the through-holes 140 of the protrusion 108 of the projecting base 102, as illustrated in FIG. 10B, under the effect of the rotation of the relay ring 103. Indeed, the locking elements 104, which were initially in the holes 120 dug in the outer surface 1 19 of said ring 103, are pushed by the wall of the ring 103 when the latter pivots. In this way, the locking members 104 outwardly of the through-holes 140 end up in the blind holes of the trigger button 101.

A translation towards the footrest 1 of the fastening elements 105 under the effect of the displacement of the full circular wall 130 of the triggering button 101, and a simultaneous spacing of said fastening elements 105 which slide on the end free it 1 12 of the protrusion 108, which is tapered. Referring to FIG. 8B, the thin sections 136 of the fastening elements 105 end up emitting through holes 133 of the release button 101, outwardly of said button 101. By thus emulating the trigger button 101, the fastening elements 105 enter the groove 1 54 of the insert piece 151 of the sem of the shoe, to hold the shoe against the footrest 1.

The rotation of the ring 103 is effected until the rods 1 17, 1 1 8 of the latter reach the other end of the slots 1 14, 1 15 of the The stress for rotating the ring 103 is greater than the force provided by the prestressed spring 139 to maintain the trigger button 101 projecting above the footrest 1. A prestressed spring 170 placed under the projecting base 102 and connected to one of the two rods 1 17, 1 18 perm and to maintain the ring 103 in the pivoted position.

The thrust of the release button 101 stops once the pins 127 have penetrated into the orifices 128 of the projecting base 102 and the expanded support 125 abuts against the bottom of the recess 1 10 of FIG. said projecting base 1 02.

In an active fixing position of the fastening system 100, the tension spring 139 holds the pivoted relay ring 103, and thus the spherical balls 104, which are taken out and housed in the blind holes of the trigger button 101. Since the trigger button 101 is depressed, the ovoid fixation pieces 105 emerge radially from the trigger button 101 and become lodged in the annular groove 154 of the boot, allowing the shoe to be held on the footrest 1 , without the possibility of being detached from it by means of a simple withdrawal of said shoe.

Referring to FIG. 12, once the boot has been attached to the footrest 1, a release mechanism 200 must be actuated to remove said boot from said footrest 1. This mechanism 200, which is planted under the projecting base 102, comprises a push button 201 and a connecting rod 202 with three branches, mounted in rotation about an axis perpendicular to the plane of the projecting base 102. A first branch 203 of the connecting rod 202 is in contact with a rod 1 17, 1 18 of the relay ring 103 pushed back to an end of a slot 1 14, 1 15 of the projecting base 102 under the The push button 201 has an actuation rod 204 placed in contact with a second branch 205 of the connecting rod 202. The push button 201 protrudes from the footrest 1 so as to be accessible. by a practitioner who would be sitting on a rowing boat seat. Pressing the push button 201 with a finger of the hand, in the direction indicated by the arrow 206, moves said push button 201 and thus the actuating rod 204 integral with said push button 201. This rod 204 exerts a pressure on the second branch 205 of the rod 202, which then starts to rotate, causing the rotation of the first leg 203, in the same direction and with the same amplitude. This rotation of the first branch 203 causes the displacement of the rod 117, 118 of the relay ring 103 against which it is in contact, and thus the pivoting in the opposite direction of said relay ring 103 around its axis of revolution in the outgrowth 108 of the projecting base 102. This reverse pivoting of the relay ring 103 causes a reverse movement of the locking elements 104 and the fastening elements 105 for releasing the shoe from the footrest 1. The rotation in the opposite direction of the relay ring 103 at one of the two rods 117, 118 by means of a pivoting of the rod 202 made with the push button 201, is carried out at the cost of a moderate effort, which must however be greater than the force with which the spring 170 is prestressed.

Referring to FIGS. 11A and 11B, in the case of an accidental capsizing of the boat, a fastening system 100 according to the invention implements an emergency unlocking mechanism, based on the displacement of a flyweight 210 profiled. This flyweight 210 is pivotally mounted about an axis secured to the projecting base 102 between the two slots 117, 118, said axis extending perpendicularly to a wall of said projecting base 103 in which said two slots 117 have been made, 118. This feeder 210 schematically comprises an enlarged body 211 extended by a narrow tab 212, said weight 210 being pivotally mounted on the projecting base 103, at said tab 212. The enlarged body 211 is bounded by two straight lateral edges 213 , 214 extending toward said tab 212.

Thus, with reference to FIG. 11A, when the boat accidentally capsizes on one side, the flyweight 210 pivots by inertia in a first direction in the plane of the projecting base 103, and hits a rod 117, 118 of the relay ring 103 with one 214 of its rectilinear lateral edges 213, 214. This impact between the melotte 210 and the rod 1 17, 1 18 causes a rotation in the opposite direction of the relay ring 103 which inactivates the locking elements 104 and the fastening elements 105, thus releasing instantaneously the footrest shoe 1.

Referring to FIG. 11B, when the boat accidentally capsizes on the other side, the mating jack 210 pivots in a second direction which is opposite to the first sense mentioned above. For this configuration, the body 21 1 of the m asselotte 210 strikes a third branch 207 of the connecting rod 202, causing rotation of said connecting rod 202, which through the first branch 203 which was previously in contact with a rod 1 17, 1 18 of the relay ring 103, causes a displacement of said rod 1 17, 1 18 in the slot 1 14, 1 15, and therefore a rotation in the opposite direction of said relay ring 203. This rotation in the opposite direction of the relay ring 103, instantaneously causes the release of the boot of the footrest 1.

It is important to note that the flyweight 210 is rotated by inertia, only when the footrest 1 reaches a threshold angle of inclination indicating a real capsize of the rowing boat. Also, in order to prevent the flyweight 210 from rotating by inertia when the footrest 1 is inclined at an angle which is less than the threshold angle of inclination, said flyweight 210 is associated with a bidirectional rotary hydraulic damper 200 In this way, when the inclination of the footrest 1 is less than the threshold angle, the hydraulic device 200 causes the flyweight 210 to pivot, and when it overcomes the hydraulic device 200 is no longer able to retain the rotational movement of said m asselotte 210.

By rotating his shoe around the attachment system 100, the practitioner can easily modify the trajectory of the boat, via the piece 16 and the wire 15, acting directly on the orientation of the guiding and orienting device. said boat.

Claims

REVENDI CATI ONS

1. A fastening system (100) of a shoe on a footrest (1) of a rowing boat, said shoe having a sole, characterized in that it comprises a device for attaching the shoe to the footrest (1), comprising a trigger button (101) having a central protrusion (131), a relay ring (103) rotatably mounted, a projecting base (102) in which is housed and protrudes said ring (103); ), locking elements (104) and independent fastening elements (105), said trigger button (101) being slidably mounted around the projecting base (102) so that the protrusion (131) is inside the relay ring (103), and in that the sole has a recess (152) with a bottom (153) and intended to come around the trigger button (101), a pressure exerted by the bottom (153) of the recess on the trigger button (101) causing a movement translation of the latter (101) resulting in a rotation of the ring (103) thanks to the presence of complementary reliefs (132, 122) present on an external surface of the protrusion (131) and on a internal surface of the ring (103), causing an activation of the locking elements (104) initially placed between the ring (103) and the projecting base (102) and a protrusion of the fastening elements (105) out of the button trigger (101), said fasteners being initially located under said trigger button (101) and above the ring (103) and the projecting base (102).

2. Fastening system according to claim 1, characterized in that the locking elements (104) are spherical balls placed between the relay ring (103) and the projecting base (102), and in that the protruding base (102) has first through holes (140) and the release button (101) has blind holes, rotating the ring (103) to move each ball (104) from a retracted position to an extended position for which it protrudes from the first hole (140) to enter a blind hole, to lock the trigger button (101) relative to said protruding base (102).

3. Fastening system according to claim 2, characterized in that the movement of each spherical ball (104) to move from a retracted position to a projecting position is a movement in translation taking place radially relative to the projecting base. (102).

4. Fastening system according to any one of claims 2 or 3, characterized in that the relay ring (103) and the projecting base (102) are concentric cylindrical walls, and in that the protruding base (102) ) comprises four first holes (140) and the fixing system comprises four spherical balls (104).

Fastening system according to one of Claims 1 to 4, characterized in that each fastening element (105) is a part having a thin section (136) and an enlarged section (137), and that the trigger button (101) has second holes (133) whose dimensions are greater than those of the thin section (136) and smaller than those of the enlarged section (137), a pressure on the trigger button (101) passing the fastening members of a retracted position above the protruding base (102) at an extended position for which the end portion (136) projects from said second hole (133) outwardly of the release button (101).

6. Fastening system according to claim 5, characterized in that each fastening element (105) is ovoid, the thin section

(136) being comparable to a half-sized egg and the enlarged section

(137) being comparable to a half-egg of larger size.

7. Fastening system according to any one of claims 5 or 6, characterized in that the movement of each fastener

(105) to move from the retracted position to the deployed position is a combined movement of a translation dictated by the movement of the trigger button (101) and a radially outward translation of the protruding base (102) caused by sliding of said fasteners (105) on a beveled wall (112) of said projecting base (102).

8. Fastening system according to any one of claims 5 to 7, characterized in that the actuating button (101) has four second holes (133) and in that said system (100) has four fasteners (105).

9. Fastening system according to any one of claims 1 to 8, characterized in that the recess of the sole of the shoe is delimited by a cylindrical side wall (152), and in that said cylindrical wall (152) comprises an annular groove (154) for receiving the fasteners (105) as they project from the release button (101).

Fastening system according to any one of claims 1 to 9, characterized in that the ring (103) is extended by two rods (117, 118), and in that the projecting base (102) comprises two slots (114, 115) in a circular arc and diametrically opposed, said ring (103) being mounted in the projecting base (102) by means of a passage of each rod (117, 118) in a slot (114, 115) .

11. Fastening system according to claim 10, characterized in that it comprises a weight (210) intended to move by rotation under the effect of its weight to come and impact one of said rods (117, 118) when the rest foot (1) pivots in one direction under the effect of an accidental capsizing of the rowing boat, said flyweight (210) being intended to print a reverse rotation movement of the trigger ring (103) in order to release the locking elements (104) and retracting the fastening elements (105).

12. Fastening system according to claim 11, characterized in that it comprises an intermediate mechanism (202, 203, 205, 207) for reversing the direction of rotation of the trigger ring (103) by means of an action on at least one of said rods (117, 118), and able to be triggered by an impact of the weight (210) under the effect of its weight when the footrest (1) pivots in the other under the effect of an accidental capsizing of the rowing boat, so as to release the locking elements (104) and to retract the fastening elements (105) even in the other pivoting direction of said rest foot (1).

13. Fastening system according to any one of claims 11 or 12, characterized in that the weight (210) is associated with a device of retaining (200) causing said m asselotte (210) to rotate inertia when the tilt of the footrest (1) has not reached a predetermined threshold angle.

14. Footrest (1) of a rowing boat, characterized in that it comprises a frame (8) on which two separate bearing elements (2, 3), each having a fastening system (100) according to any one of claims 1 to 13, for receiving a shoe of a practitioner seated in said boat, each of said elements (2, 3) having a front portion ( 4) and a rear part (5) are provided on at least one rod (6, 7), the distance between said two parts (4, 5) being adjustable along said at least one rod (6, 7). to take into account the size of the shoe.

15. footrest according to claim 14, characterized in that the frame (8) on which are mounted the two bearing elements (2, 3) is adjustable in width to accommodate the different widths and architectures of hulls of rowing boats, the frame (8) having locking elements able to freeze the position of said frame (8) corresponding to a distance emanating dictated by the width of a given hull.

16. Footrest according to claim 15, characterized in that the spacing between the two support elements (2, 3) can be added once the locking elements of the frame (8) have been removed. activated in order to obtain a fine adjustment of the spacing between said supporting elements (2, 3).

Footrest according to one of Claims 14 to 16, characterized in that the securing system (100) is placed in the front part (4) of each support element (2, 3).