WO2021116560A1

WO2021116560A1 - Device for detachable connection between two components

Info

Publication number: WO2021116560A1
Application number: PCT/FR2020/052237
Authority: WO
Inventors: Kadra Abdi Abdillahi; Erwan GANNAT
Original assignee: Innov Shoes
Priority date: 2019-12-10
Filing date: 2020-12-01
Publication date: 2021-06-17
Also published as: FR3104217B1; EP4073394A1; FR3104217A1

Abstract

The invention relates to a device (1) for detachable connection between two components, consisting of two parts forming a male-female pair, configured to adopt two positions, a locked position and an unlocked position, said male part (100) comprising a protuberance (103) and a lock (104) located between a first portion (105) and a second portion (106) of the protuberance, and said female part (200) comprising two guiding elements, a first element having a through-opening that receives one of the portions of the protuberance, and a notch (242) created in the wall, a second element having an opening designed to receive the other portion of the protuberance, the second element comprising a partial notch (255) that receives the lock in a locked position, the first element and the male part each comprising a stop member (109, 244) immobilizing the two parts axially in said locked position in a first direction, said lock in abutment against the bottom of said partial notch immobilizing the two parts axially in a second direction.

Description

Title: Removable assembly device between two parts

TECHNICAL FIELD OF THE INVENTION

The field of the invention is the field of footwear, clothing, haberdashery and jewelry, personal use items and travel goods.

More specifically, the invention relates to the removable assembly of two parts, in particular for the purpose of personalizing objects comprising the parts to be assembled.

The invention finds applications in particular in the field of shoes, in order to allow simple and rapid interchangeability between sole and upper elements, in the field of watches in order to allow the closing of watch straps, in the field of jewelry as a clasp, or in the field of leather goods, to allow interchangeability of handles of bags or other accessories.

STATE OF THE ART

Techniques for interchanging upper elements of a shoe in order to modify its appearance or style are known from the prior art.

Document FR2963214 describes a removable assembly between a shoe and an interchangeable accessory in the form of a strap. This technical effect is obtained by a slide system installed between the sole and the strap.

This system does not make it possible to simultaneously meet all the required needs, namely to propose a technique allowing simple handling for the user, to guarantee a good hold of the removable assembly system on the elements of the shoe, to avoid a unexpected disassembly of the system, and to meet the requirements of comfort and aesthetics on the part of the user.

Spring ring type clasps are also known for securing two ends of a piece of jewelry.

Such systems provide little or no protection against unexpected disassembly of the parts connected to the clasp, and are particularly difficult for a user to handle, in particular because of the small size of the gripping members of such a ring-type clasp. In addition, it is also known from the prior art of assembly devices between two parts implementing a male part and a female part, however these systems do not ensure satisfactory protection against an unexpected disassembly of the two parts. , due to movements of the user when using the parts connected to the device.

None of the current systems makes it possible to simultaneously meet all the required needs, namely to provide a technique ensuring protection against an unexpected disassembly of the two parts, while implementing means of protection against an unexpected disassembly which are inexpensive and simple to implement, and easy to handle by a user.

STATEMENT OF THE INVENTION

The present invention aims to remedy all or part of the drawbacks of the state of the art mentioned above.

To this end, according to a first aspect, the present invention provides a removable assembly device between two parts, composed of a first and a second part forming a male-female couple, configured to adopt at least one extreme position called locked and at least one other extreme position called unlocked, said parts being intended to be each respectively linked to one of the parts to be assembled, said male part comprising a protuberance of elongated shape extending longitudinally along an axis X3 and a lock located between a first portion and a second portion of the protuberance, and said female part comprising at least two guide elements, a first guide element having a through opening of axis X1 delimited by a wall intended to receive one of the portions of the protuberance and a notch formed in the wall, a second guide element having an opening of axis X2 delimited by a wall intended to receive the utre portion of the protuberance, the second guide element comprising a partial notch formed in the wall accommodating a portion of the latch in a locked position, the first guide element and the male part each comprising a stop member, said stop members blocking the two parts axially in said locked position in a first direction, said lock in abutment against the bottom of said partial notch blocking the two male and female parts axially in a second direction opposite to the first direction. Thanks to these arrangements, the two male and female parts cannot be separated by a simple translation along the axes X1, X2 and X3, which are combined in an extreme locked position. In addition, the arrangement of the lock in said partial notch also excludes unlocking by combining a simple translation along the axes X1, X2 and X3 and a simple rotation around the axes X1, X2 and X3, because the lock would come abut against an edge of the notch in which it is arranged at the end of its simple rotation.

Thus, the invention makes it possible to prevent an unexpected unlocking of the assembly device by a geometry of the male and female parts involving a precise sequence of translations and relative rotations of the male and female parts, along and around the axes X1, X2 and X3. , necessary in order to lock or unlock the device.

In particular embodiments of the invention, said male and female parts are adapted to pass from said extreme unlocked position to said extreme locked position by a series of two translations and two relative rotations, respectively along and around the axis X3 of said protuberance of the male part.

Thanks to these arrangements, the risk of disassembling the two male and female parts is greatly reduced, such a series of translations and rotations only very unlikely to appear unexpectedly.

In particular, a series of two translations and two rotations succeeding each other in an alternative manner is particularly advantageous.

In particular embodiments of the invention, said series of two translations and two relative rotations comprises:

a first relative translation so that said sliding bolt in said notch of the first guide element is in a position released from the first guide element between the first and second guide element;

a first relative rotation so that said stop member of the male part comes into angular abutment with said stop member of the first guide element; a second relative translation so that said lock comes into axial abutment with the bottom of the partial notch of the second guide element and that said abutment member of the male part no longer comes into angular abutment with said stop member of the first guide element; a second relative rotation so that said stop member of the male part comes into axial abutment with said stop member of the first guide element In particular embodiments of the invention, said stop member located on the first guide element is a tongue projecting from said first guide element and in that said stop member located on the male part is a protruding lug from said male part.

Advantageously, the simplicity and small size of these stop members makes it possible to adapt their position on the first guide element and said male part during the design and manufacture, depending on the desired use of the device. assembly. In particular, the relative orientation of the male and female parts in the extreme locked position can be varied depending on the desired use.

In particular embodiments of the invention, on the scalloped portion of the second guide element, the wall of the second guide element has a generally U-shaped interior surface with two free edges facing each other in a view. from above along the axis X2, and one of the free edges of the wall is provided with a bevel, so that the distance between the free edges of the wall increases towards the outside of the second guide element

Thanks to these arrangements, the lock arranged in the partial notch is able to pivot slightly thanks to the play provided by the bevel of the second guide element.

This arrangement makes it possible to perform said second relative rotation, the amplitude of which is advantageously low, so as to simply position the two stop members facing each other.

In particular embodiments of the invention, said generally U-shaped interior surface having two flat interior faces opposite to each other which are inclined at an angle of between approximately 10 ^th and 30 ^th , preferably of approximately 20 °.

A first face being unchanged, and a second face being created by said bevel, the two faces are inclined with respect to each other, the angle being preferably equal to 20 ° so as to leave only sufficient play to allow the stop member of the male part to disengage from the stop member of the first guide element.

In particular embodiments of the invention, in a top view along the axes X1 and X2, the angle between the angular positions of said notch of the first guide element and of said partial notch of the second guide element is greater than 90 °, and preferably of the order of 150 °.

Thanks to these arrangements, a large amplitude of rotation is necessary to unlock the assembly device. Such an amplitude, which is preferably greater than 90 °, is very unlikely to be achieved by random movements due to the movement of the user, thus protecting the assembly device from unexpected disassembly.

In particular, said first rotation, corresponding to the first rotation during assembly and the last rotation during disassembly, is advantageously of a large amplitude.

In particular embodiments of the invention, said first relative rotation is between 120 ° and 140 °, and preferably about 130 °, and said second relative rotation is between 10 ° and 30 °, and preferably of about

20 °.

In particular embodiments of the invention, said second opening of said second guide element comprises two portions of different diameters, a first portion having a diameter equal to a diameter of the portion of said protuberance received in said opening of said second guide element. guide, a second portion having a diameter smaller than said diameter of the first portion.

Thanks to these arrangements, said protuberance is first guided in the second guide element, then collides with a shoulder created by the difference in diameter, to be finally introduced into the opening of reduced diameter.

In particular embodiments of the invention, said protuberance is composed of two portions of different circular sections, each portion comprising two flats, the first flat of each portion having the same angular position on said protuberance as said lock, the second flat of each portion being diametrically opposed to the first flat of each portion.

Thanks to these arrangements, a braking effect is obtained by friction at the level of the edges of the flats, between the protuberance and the first and second guide elements.

In particular embodiments of the invention, said second opening of the second guide element is blind and comprises a spring housed in the bottom of said blind opening, said spring being compressed between the bottom of said. blind opening and a free end of said protuberance of elongated shape in a locked position of said removable assembly device.

Thanks to these arrangements, an additional means of preventing the unexpected unlocking of the assembly device is obtained, thanks to the force exerted by the spring on the stop member of the first guide element, through the stop member of the male element. Thus, a greater or equal force must be applied in the opposite direction in order to unlock the device.

In particular embodiments of the invention, each part of the male-female pair comprises a connection system suitable for connecting a part of the male-female pair to one of the parts to be assembled together, said connection system taking the form of 'a closed loop or fixing plate.

Thanks to these arrangements, the assembly device can be adapted precisely to the desired use. The optimal connection system according in particular to criteria of implementation, cost, aesthetics, can thus be chosen independently of the actual operating principle of the assembly device.

The subject of the invention is also a shoe element composed of a sole element and a removable assembly device according to the invention, said assembly device being arranged on said sole element, preferably in a notch of said sole element.

The invention also relates to a shoe characterized in that it comprises a shoe element according to the invention.

BRIEF DESCRIPTION OF THE FIGURES

Other advantages, aims and particular characteristics of the present invention will emerge from the following nonlimiting description of at least one particular embodiment of the devices and methods which are the subject of the present invention, with reference to the accompanying drawings, in which:

- Figure 1 shows a schematic perspective view of a shoe comprising a removable assembly device according to the invention.

- Figure 2 shows a schematic perspective view of a bracelet comprising a removable assembly device according to the invention.

- Figure 3 shows a schematic perspective view of an assembly device according to the invention in the unlocked and disassembled position. - Figure 4 shows a schematic perspective view of the assembly device of Figure 3 in an intermediate assembly position.

- Figure 5 shows a schematic perspective view of the assembly device of Figures 3 and 4 in a locked and assembled position.

- Figure 6 shows a schematic perspective view of a male part of the assembly device according to the invention.

- Figure 7 shows a schematic front view of the male part of the assembly device of Figure 6.

- Figure 8 is a schematic view along section A-A of the male part of the assembly device of Figure 7.

- Figure 9 is a schematic view on section B-B of the male part of the assembly device of Figure 7.

- Figure 10 shows a schematic perspective view of a female part of the assembly device according to the invention.

- Figure 11 shows a schematic front view of the female part of the assembly device of Figure 10.

- Figure 12 shows a schematic side view of the female part of the assembly device of Figure 11.

- Figure 13 shows a schematic view along section C-C of the female part of the assembly device of Figure 11.

- Figure 14 shows a detailed schematic view of the female part of the assembly device of Figure 10.

- Figure 15 shows a schematic view of a female part of the assembly device according to the invention, according to an alternative embodiment comprising a removal of material from the first guide element.

- Figure 16 shows a schematic perspective view with a partial section of the second guide element of a female part of the assembly device according to the invention, according to an alternative embodiment comprising a spring in the opening of the second element guidance.

- Figure 17 shows a schematic perspective view of a detail of the second guide element of a female part and of the lock of the male part of the assembly device according to the invention, according to an alternative embodiment comprising an enlargement lock and partial cutout. DETAILED DESCRIPTION OF THE INVENTION

This description is given without limitation, each characteristic of an embodiment or variant being able to be combined with any other feature of any other embodiment or variant in an advantageous manner.

We note, from now on, that the figures are not to scale.

As shown in Figures 1 to 2, an assembly device 1 allows two parts to be assembled together. In the embodiments visible in Figures 1 to 2, the assembly device 1 respectively connects a sole element 2 to a strap 5 constituting a shoe upper, and two ends of a strap 9, for example a strap. watch.

Example of a particular embodiment

In a particular embodiment illustrated in FIG. 1, the assembly device 1 connects a sole element 2 to a strap 5 constituting a shoe upper. The removable assembly device 1 allows easy interchange of sole elements and upper elements.

More specifically, Figure 1 shows a shoe 6 comprising a sole 7 and a strap 5 assembled together by means of four assembly devices 1. The strap can be mounted and then removed from the sole by locking and unlocking the devices. assembly 1.

As can be seen in Figure 3, the assembly device 1 is composed of two parts 100 and 200 forming a male / female couple. The male part 100 is intended to be connected to the strap 5 by means of a loop 101 while the female part 200 is intended to be attached to the sole element 2.

The assembly device 1 comprises a male part 100 intended to cooperate with a female part 200 extending respectively in a plane P100 and in a plane P200, visible in FIGS. 6 to 9 and 11 to 13. In the remainder of the document , the relative terms "top" and "bottom" are understood by reference to the orientation of the male 100 and female 200 parts in FIGS. 6 and 10.

As can be seen in Figures 3 to 5, the male part 100 is intended to be connected to the strap 5 via a connection system in the form of a closed loop 101.

As can be seen in Figures 6 and 7, this loop 101 has four sides 151-154 connected together to form a rectangle having two rounded corners of so as to have an overall D-shape. A strip of material belonging to the strap 5 is inserted inside the loop 101 in order to achieve the attachment between the strap 5 and the male part 100.

In addition, the male part 100 has a protuberance 103 in the form of an elongated rod, extending longitudinally along an axis X3, which is connected to the loop 101 via a connecting section 102 located in an extension of the transverse side 154 of the loop. 101. The axis X3, and therefore the protuberance 102, are substantially parallel to the longitudinal sides 151 and 153 of the loop 101.

The male part 100 also has a latch 104 located between a lower portion 105 and an upper portion 106 of the protuberance 103. The lower portion 105 extends between the latch 104 and a free end 107 of the protuberance 103, while the portion high 106 extends between the latch 104 and the connecting section 102.

The latch 104 extends between an outer periphery of the protuberance 103 and the longitudinal side 151 of the loop 101. The lock 104 has a substantially parallelepipedal shape.

Preferably, the protuberance 103 has two portions of different cross sections S1 and S2, as can be seen in FIGS. 8 and 9. The first portion, of cross section S1, extends between the connecting section 102 and a zone of transition 108 located on the top portion 106. The second portion, of cross section S2, extends between the transition zone 108 located on the top portion 106 and the free end 107. The section S1 is generally circular, with a diameter which tends to decrease when moving from the connecting section 102 to the transition zone 108 located on the upper portion 106. The first portion, of section S1, is therefore generally frustoconical in shape, and comprises two flat surfaces 110 and 111 , the first flat 110 being diametrically opposed to the loop 101 and the second flat 111 facing the loop 101, the two flats 110 and 111 extending between the connecting section 102 and the transition zone 108 located on the upper portion 106. The section S2 is generally circular, with a constant diameter between the transition zone 108 and the free end 107. The second portion, of section S2, comprises two flats 112 and 113, the first flats 112 being diametrically opposed to the loop 101 and the second flat 113 facing the loop 101, the two flats 112 and 113 extending between the transition zone 108 located on the upper portion 106 and the free end 107. The second flat 113 of the second portion is interrupted by the lock 104 which is located on the second flat 113. As can be seen in Figures 6 to 8, the longitudinal side 151 of the loop 101 comprises a lug 109. Said lug 109 projects transversely to the main plane P100 of the first part 100. The lug 109 is located on the longitudinal side 151 at the height of the upper portion 106 of the protuberance 103, more precisely substantially at the height of the transition zone 108 of the protuberance 103. The lug 109 also has a substantially rectangular parallelepiped shape, and preferably occupies the entire of the width of the longitudinal side 151 of the loop 101, as can be seen in Figures 6 to 8.

Moreover, as can be seen in Figure 1, the female part 200 is intended to be connected to the sole element 2 by means of a connecting system 202.

As can be seen in FIGS. 10 to 13, this connection system 202 takes the form of a plate 220 of substantially rectangular shape having an edge 221 carrying two guide elements 204 and 205 described in more detail below. The plate 220 has recesses 223 formed in two of its opposite sides perpendicular to the edge 221. The plate 220 further comprises two openings 222 located on the side opposite the edge 221. The plate 220 can be fixed to the sole element 2 via fixing means, such as screws or nails, passing through the openings 222, or else by gluing, the openings 222 serving to remove the excess glue. A combination of these fixing means is also possible. In addition, the plate 220 includes pins 224 projecting perpendicularly to the plate 220. These pins 224, clearly visible in Figures 12 and 13, preferably have a conical shape. Preferably, each face of the plate 220 comprises pins 224. Thus, the pins 224 make it possible in particular to reinforce the connection between the female part 200 and the sole element 2 by sinking into the sole element 2, as well as the connection between the female part 200 and the support of the sole element 2. Thus, the pins oppose a shearing force between the female part 200 and the sole element 2. In other words , the pins 224 are means for anchoring the plate 220 on its support.

The female part 200 comprises a first guide element 204 having a through circular opening 241 of axis X1 intended to receive the upper portion 106 of the protuberance 103 and a notch 242 allowing passage of the latch 104. In this case, the first guide element 204 comprises a wall 243 delimiting the opening 241 of frustoconical shape, the notch 242 of substantially rectangular shape being formed in the wall 243. The notch 242 has a width substantially equal to the thickness of the latch 104, corresponding to the smallest dimension of the latch 104, so that the latch 104 can slide in the notch 242. The width of the notch is less than the minimum diameter of l opening 241 of frustoconical shape. The notch 242 extends between the two axial end edges of the wall 243. In other words, the guide element 204 comprises a wall 243 formed by two portions of rings 243a, 243b facing one of the 'another delimiting the opening 241 of frustoconical shape and the free ends of which are spaced apart by the notch 242. The notch 242 is here located in a plane P242 intersecting the main plane P200 of the female part 200 at 60 °, the complementary obtuse angle being located between the plane P242 of the notch 242 and the plate 220, as can be seen in FIG. 12.

The first guide element 204 also comprises a tongue 244 located on the outer surface of the wall 243, more particularly on the outer surface of the ring portion 243a of the wall 243. This tongue 244 extends substantially perpendicular to the wall. main plane P200 of the female part 200, away from the female part 200. The tongue 244 originates at the height of the edge 221 of the plate 220, and has a flat surface on the side facing the plate 220, and has a leave the side opposite to the plate 220, so as not to form too acute an angle between the tongue 220 and the ring portion 243a, which would have the effect of a high risk of breakage of the tongue 244. The base of the tongue 244 is located substantially diametrically opposite to the notch 242, that is to say that the notch 242 and the tongue 244 are located on either side of the main plane P200.

In addition, the female part 200 comprises a second guide element 205 provided with a through circular opening 251 of axis X2 intended to receive the lower part 105 of the protuberance 103. In this case, the second guide element 205 comprises a wall 252 delimiting the opening 251 which is of cylindrical shape in a first portion 253 of the second guide element 205, and of frustoconical shape in a second portion 254 of the second guide element 205. The axes X1 and X2 of the openings 241 and 251 are confused with each other. The diameter of the first portion 253 of the second guide element 205 is substantially equal to the diameter of the second section portion S2 of the protuberance 103. The diameter of the second portion 254 of the second guide element 205 is less than the diameter of the first portion 253 of the second guide element 205, so as to create a shoulder 256 inside the opening 251, as can be seen in FIG. 14. In this way, the free end 107 of the lower part 105 of the protuberance 103 abuts against the shoulder 256 during the introduction of the lower part 105 in the opening 251, before it can be introduced more deeply into the second portion 254. This has the effect of creating a resistance during the introduction of the protuberance 103 into the second portion 254.

A partial notch 255 of substantially rectangular shape is formed in the wall 252 delimiting the opening 251, and extends between the axial end edge facing the first guide element 204 and a transition zone between the first portion 253 and the second portion 254 of the second guide element 205. The length of the partial notch 255 is such as to accommodate a portion of the length of the latch 104 of the male element 100. The partial notch 255 is located on the side of the main plane P200 of the female element 200 which also includes the tongue 244.

The partial notch 255 opens substantially perpendicular to the main plane P200 of the female element 200. According to a top view along the axis X2, shown in FIG. 13, the wall of the second guide element has a surface interior generally U-shaped with two free edges 257 and 258 facing each other on the indented area. The free edge 257 and 258 created by the partial indentation 255 and present respectively real and an imagined flat interior surface, which is cut by the bevel introduced below. In other words, the partial notch 255 corresponds to an extrusion of a rectangle of width equal to the diameter of the second portion 254 of the opening 251 and of length equal to the longitudinal dimension of the notched portion, the extrusion being made from the diameter of the second portion 254 of the opening 251. The free edge 258 located away from the plate 220 is provided with a bevel 259 on the edge of the free edge 228 facing the other edge free 257. The bevel 259 thus creates a new flat surface 263 of the free edge 258 oriented towards the other free edge 257. In this way, the distance between the free edges 257 and 258 of the wall increases towards the outside of the second element. guide 205, as can be seen in FIG. 13.

Advantageously, the plane comprising the flat surface 263 created by the bevel 259 and the plane comprising the opposite flat surface intersect at an angle a of between 10 ° and 30 °, and preferably of about 20 °. In other words, the planar surface 263 created by the bevel 259 and the opposing planar surface have an inclination. relative between 10 ° and 30 °, and preferably around 20 °, as can be seen in FIG. 13.

Thus, the protuberance 103 and the latch 104, which are received in the notch 155, can pivot in the opening 251 between the flat surface 261 and the flat surface 263 created by the bevel 259. In other words, the bevel 259 creates a rotational play of the protuberance 103 of preferably 20 ° when the latter is received in the opening 251.

The female parts 200 are fixed on the sole element 2 by positioning each plate 220 on the sole element 2, preferably in notches of the sole element 2 adapted to accommodate a plate 220 of a female part 200, and by introducing nails or screws not shown inside the openings 222. Preferably, the sole element 2 is made of cork and leather or of an equivalent material facilitating the insertion of the nails.

Alternatively, the plates 220 are glued to the sole element 2, the openings 222 in this case being adapted to remove excess glue.

The two alternative fixing methods above can also be combined in order to improve the fixing of the female parts 200 on the sole element 2.

The strap 5 comprises a set of straps at the free ends of which the male parts 100 are fixed. In this case, the strap 5 comprises a strap 51 generally in the form of a V carrying two male portions 100 at its free ends and a strap 52 s. 'extending transversely to the strap 51 also carrying two male parts 100 at its free ends. To this end, the ends of the straps 51, 52 pass inside the loop 101 and are folded down so as to grip one of the sides of the loop 101, in this case the longitudinal side 153.

The male 100 and female 200 parts are made, for example, in a plastic material, in metal, or in an alloy such as zamak or an alloy steel. All the shapes described above will thus be easily obtained by molding, stamping or machining.

In a nonlimiting exemplary embodiment, the male part 100 has a height L1 of the order of 19mm, a width L2 of the order of 10mm and a thickness L3 of the order of 3mm (cf. FIGS. 7 and 8). . Furthermore, the female part 200 has a length L4 of the order of 17mm, a width L5 of the order of 17mm and a thickness L6 of the order of 2mm. The plate 220 has a length L7 of approximately 13mm. The maximum diameters of the openings 241 and 251 are of the order of 2.7mm.

The following describes, with reference to Figures 3 to 5, the assembly between the male part 100 and the female part 200 of the assembly device 1, that is to say the passage from an extreme unlocked position to an extreme position locked by a series of two translations and two relative rotations, respectively along and around the axis X3 of said protuberance of the male part.

During the assembly or disassembly described below, the axes X1, X2 and X3 are merged.

First, as shown in Figure 3, the planes P100 and P200 in which the two parts 100 and 200 extend intersect at an angle of 60 °, the obtuse angle being formed between the loop 101 and the plate 220, the protuberance 103 being threaded in translation along arrow A by its free end 107 inside the opening 241 of the guide element 204. The translational movement of the protuberance 103 is such that the latch 104 is moves along the notch 242 until it comes into abutment against an edge of the second guide element 205, which corresponds to a position of the latch 104 released from the first guide element 204. In this position, the latch 104 is located between the guide elements 204 and 205. As can be seen in FIG. 4, the lower portion 105 is then inserted inside the opening 251 of the second guide element 205 while the upper portion 106 is inserted inside the opening. 'inside the opening 241 of the first element of gu idage 204. The lock 104 is located in the extension of the notch 242.

This step described above corresponds to a relative translation of the two male 100 and female 200 parts along the axis X3.

To lock the device 1, in a second step, the male part 100 is rotated relative to the female part 200, which is fixed in the present example because it is located on a shoe, along the arrow B around an axis of rotation. substantially coincident with the axes X1 and X2. Indeed, the protuberance 103 and the guide elements 204, 205 form a hinge between the male part 100 and the female part 200. The rotational movement is carried out until the latch 104 is located opposite each other. the partial notch 255 of the second guide element 205, which also corresponds to a position in which the lug 109 comes into angular abutment with the tongue 244. This step described above corresponds to a relative rotation of the two male 100 and female 200 parts around the axis X3.

In particular, this rotation corresponds to a rotation of 130 °.

Thirdly, the male part 100 is again moved in translation along arrow A, until the latch 104 abuts against the bottom of the partial notch 255. The latch 104 is thus angularly offset with respect to the notch 242 and offset axially with respect to the space between the guide elements 204 and 205. In this position, the lug 109 no longer comes into angular abutment with the tongue 244.

In a fourth step, the male part 100 is again rotated relative to the female part 200 which is fixed along the arrow B around an axis of rotation substantially coincident with the axes X1 and X2, until the surface interior 261 of the partial notch 255 comes into abutment with the lateral surface of the corresponding lock 104. The lug 109 is thus in contact with the tongue 244. The male part 100 is then locked axially in a first direction by the stop formed by the lug 109 and the tongue 244, and in a second direction by the stop formed by the latch 104 and the bottom of the partial notch 255. Device 1 is in a locked state, visible in FIG. 5.

This previously described step corresponds to a relative rotation of the two male 100 and female 200 parts around the axis X3.

In particular, this rotation corresponds to a rotation of 20 °.

Thus, the angular position reached after the fourth stroke corresponds to a cumulative rotation of 150 ° relative to the position reached after the first assembly stroke, before the first rotation.

The lock 104 is also locked in rotation in each direction by the edges of the partial notch 255, with a play of 20 °. In an extreme angular position, corresponding to the state of the device 1 after the fourth step of the locking step, the translation of the male part 100 in a direction opposite to the arrow A can also be prevented by the press fit. created by the frustoconical nature of the first portion of the protuberance 103 and the opening 241 of the first guide member 204. Thus, an involuntary unlocking of the two male and female elements would require in particular an involuntary rotation of 20 ° of the male part 100 relative to the female part 200 in the opposite direction of the arrow B, then an involuntary translation of the male part 100 in the opposite direction of arrow A, with a force greater than the frictional force in the frustoconical connection between the first portion of the protuberance 103 and the opening 241 of the first guide element 204.

Note that in the locked state of device 1, the planes P100 and P200 are inclined relative to each other, and are preferably substantially perpendicular and intersect along the axis X1 or, equivalently, X2.

To unlock the assembly, the user turns the male part 100 in an opposite direction along the arrow C shown in broken lines in Figures 3 to 5. The movement is carried out until the lug 109 is no longer. facing the tongue 244. The two planes P100 and P200 then intersect at an angle of 110 °. The male part 100 is then pulled in translation along the arrow D shown in broken lines so that the latch 104 moves in translation inside the partial notch 255 in a direction away from the second guide element 205, up to until the latch 104 abuts against the first guide element 204. The male part 100 is then again turned in an opposite direction along arrow C, until the latch 104 is located in the extension of the 'notch 242. The male part 100 is finally pulled in translation along the arrow D shown in broken lines so that the latch 104 moves in translation inside the notch 242 in a direction away from the second guide member 205 , so that the lower 105 and upper 106 portions then emerge from the guide elements 204 and 205 and the male 100 and female 200 portions are then separated from one another.

The rotational movement of the male part 100 relative to the female part 200 to switch from one state to another of the device is of the order of 150 degrees. The movement may be carried out in a clockwise or anti-clockwise direction depending on the configuration of the female part 200 which may vary depending on the application.

Other advantages and optional features

According to alternative embodiments, the male part 100 and the female part 200 are both provided with loops 101 or with plates 220 as attachment means to the parts to be linked. Likewise, the male part 100 can comprise a plate 220 instead of a loop 101 and the female part 200 may include a loop 101 instead of a plate 220.

In particular, an embodiment using a male 100 and female 200 part provided with loops 101 as hooking means is particularly advantageous for an application as a clasp for ornamental bracelets or watches. Such an embodiment is visible in FIG. 2.

Depending on the use made, the locked position of the two male parts can be adapted by varying the angular position around the axes X1 and X2 of the notch 242 and the partial notch 255 as well as the position of the lug 109 and of the tongue 244. Thus, in the embodiment shown in FIG. 2, the main planes P100 and P200 are substantially coincident, instead of being substantially perpendicular in the embodiment shown in FIG. 1.

In particular, another embodiment not shown implementing a male 100 and female 200 part provided with plates 220 as hooking means is particularly advantageous for an application for handles of handbags, a first part of the male pair. female being attached to the body of a handbag and a second part being attached to one end of a handbag handle. Thus, using 2 or 4 assembly devices 1 according to this alternative embodiment, it is possible to personalize a handbag using one or two interchangeable handles, depending on the type of handbag. .

It should be noted that the plates 220 can be devoid of openings 222, recesses 223 and pins 224 in all the embodiments shown, in particular for aesthetic reasons when the plate 220 is visible to a user.

According to an alternative embodiment of the invention shown in FIG. 15, the distance separating the ends 270 and 271 of the guide elements 204 and 205 facing each other is equal to the longitudinal dimension, that is to say parallel to the axes X1 and X2, of the latch 104. According to this alternative embodiment, the ring portion 243a has a longitudinal dimension, that is to say parallel to the axes X1 and X2, which is reduced over an angular portion s' extending from the edge of the notch 243 to an area on the ring portion 243a facing the edge of the partial notch 255 located away from the edge 221 of the plate 220, as seen in Figure 15. The longitudinal dimension of the first guide element 204 is shortened over this angular portion on the side of the end of the first guide element 204 facing the second guide member 205. In other words, a material removal 260 is performed on this angular portion on the side of the end 270 of the first guide member 204 facing the second guide member 205 while the the other end of the first guide member 204 is unchanged. Thus, on the angular portion undergoing material removal 260, the distance separating the ends 270 and 271 of the guide elements 204 and 205 facing each other is equal to the longitudinal dimension, that is to say parallel to the axes X1 and X2, of the latch 104. Thus, the latch 104 can be pivoted in the space between the guide elements 204 and 205 on the angular portion undergoing material removal due to the clearance created by the material removal 260, then encounter a abutment, the space between the guide elements 204 and 205 being less than the length of the latch 104. The size of the angular portion undergoing material removal 260 is sufficient to allow the latch 104 to slide in the partial notch 242 in order to then return to the unlocked position, and vice versa to return to the unlocked position. Thus, this series of precise relative movements to be performed in order to lock / unlock the two male 100 and female 200 elements reduces the risk of unexpected disassembly.

It should be noted that material removal can also be replaced by direct fabrication of the final geometry, for example by molding. It should also be noted that the embodiment illustrated in Figure 15 may also include a tab 244 described above.

In another variant shown in FIG. 16, the second guide element 205 is closed by its end opposite the first guide element 204, in other words, the opening 251 of the second guide element is blind, the opening being directed towards the first guide element 204. According to this alternative embodiment, a spring 280 is housed in the bottom of the blind opening 251. In this way, the spring 280 exerts a force on the free end 107 of the male part 100 when the male and female parts are locked, which has the effect of maintaining the lug 109 against the tongue 244. Thus, disassembly unexpected of both male and female parts can be prevented. It should be noted that the opening 251 is shown in a simplified manner in Figure 16, without representation of the different diameters of the opening 251.

According to another variant embodiment of the invention shown in FIG. 17, the second guide element 205 has a modification at the level of the partial notch 255. The partial notch 255 is widened over a portion of its length to from the bottom of the partial notch 255. Such a widened portion 271 preferably extends over a length corresponding to approximately 50% of the length of the partial notch 255. The remaining length of the partial notch 255 thus consists of a non-widened portion, and a shoulder is formed when passing from the widened portion 271 to the non-widened portion. Preferably, the widening of the partial notch 255 is symmetrical, ie the notch is widened on each of its sides. Mirroring this widening of the notch, the latch 104 of the male part 100 is widened over a portion of its length. The width of such a widened portion 114 however remaining less than the width of the non-widened portion of the partial notch 255, so that the latch 104 can slide in the partial notch 255. The length of the widened portion 114 of the latch 104 is less than or equal to the length of the widened portion 271 of the partial notch 255. The remaining length of the latch 104 thus consists of a non-widened portion, and a shoulder is formed as the widened portion 114 passes. to the non-enlarged portion. Preferably, the enlargement of the lock 104 is also symmetrical, ie the lock is enlarged on each of its sides. It is also specified that the notion of enlargement is to be considered in a relative manner, and can also constitute a narrowing of the non-enlarged portions of the latch 104 and / or of the partial notch 255, leading to the same qualitative result.

In this way, when the latch 104 is inserted into the partial indentation 255, the enlarged portions of the latch 104 and the partial indentation 255 face each other. During relative rotational movements between the male part 100 and the female part 200, around the axis of the protuberance 103, the enlarged portion 114 of the latch 104 is housed in the enlarged portion 271 of the protuberance 255 (on one side or the other depending on the direction of rotation). The risk of unexpected withdrawal of the protuberance 103 from the female part 200 is thus further reduced, the shoulder of the partial notch 255 forming a stop against the shoulder of the latch 104, when the latch 104 is not perfectly aligned with it. the partial notch 255. This advantageous configuration of the latch 104 and of the partial notch 255 therefore consists of an additional means of securing the assembly between two parts assembled using the device 1 according to the invention.

Claims

1. Assembly device (1) removable between two parts, composed of a first and a second part forming a male-female couple, configured to adopt at least one extreme position called locked and at least one other extreme position called unlocked, said parts being intended to be each respectively linked to one of the parts to be assembled, said male part (100) comprising a protuberance (103) of elongated shape extending longitudinally along an axis X3 and a lock (104) located between a first portion (105) and a second portion (106) of the protuberance, and said female part comprising at least two guide elements, a first guide element (204) having a through opening (241) of axis X1 delimited by a wall (243) intended to receive one of the portions of the protuberance and a notch (242) formed in the wall, a second guide element (205) having an opening (251) of axis X2 delimited by a wall (252) intended to rece see the other portion of the protuberance, characterized in that the second guide element comprises a partial notch (255) formed in the wall accommodating a portion of the latch in a locked position, and in that the first guide element and the male part each comprise a stop member (109, 244), said stop member blocking the two parts axially in said locked position in a first direction, said lock in abutment against the bottom of said partial notch blocking the two male and female parts axially in a second direction opposite to the first direction.

2. Assembly device (1) according to the preceding claim, characterized in that said male (100) and female (200) parts are adapted to move from said extreme position unlocked to said extreme position locked by a series of two translations and of two relative rotations, respectively along and around the axis X3 of said protuberance (103) of the male part.

3. Assembly device (1) according to the preceding claim, characterized in that said series of two translations and two relative rotations comprises:

- a first relative translation so that said sliding bolt (104) in said notch (242) of the first guide member (204) is in a disengaged position of the first guide member between the first and second (205) guide member;

- a first relative rotation so that said stop member (109) of the male part (100) comes into angular abutment with said stop member (244) of the first guide element;

- a second relative translation so that said lock comes into axial abutment with the bottom of the partial notch (255) of the second guide element and that said abutment member of the male part no longer comes into abutment angular with said stop member of the first guide element;

a second relative rotation so that said stop member of the male part comes into axial abutment with said stop member of the first guide element.

4. Assembly device (1) according to any one of claims 2 to 3, characterized in that said first relative rotation is between 120 ° and 140 °, and preferably about 130 ° and in that said second relative rotation is between 10 ° and 30 °, and preferably about 20 °.

5. Assembly device (1) according to any one of the preceding claims, characterized in that said stop member (244) located on the first guide member (204) is a tongue projecting from said first guide member and in that said stop member (109) located on the male part (100) is a protruding lug from said male part.

6. Assembly device (1) according to one of the preceding claims, characterized in that, on the scalloped portion of the second guide element, the wall of the second guide element (252) has an interior surface generally in the form of U with two free edges (257, 258) facing each other in a top view along the axis X2 and in that one of the free edges of the wall is provided with a bevel (259), so that the distance between the free edges of the wall increases towards the outside of the second guide member.

7. Assembly device (1) according to the preceding claim, characterized in that said generally U-shaped inner surface has two flat inner faces opposite to each other which are inclined at an angle of between approximately 10 ° and 30 °. °, preferably about 20 °.

8. Assembly device (1) according to any one of the preceding claims, characterized in that, according to a top view along the axes X1 and X2, the angle between the angular positions of said notch (242) of the first guide element (204) and said partial notch (255) of the second guide element (205) is greater than 90 °, and preferably of the order of 150 °.

9. Assembly device (1) according to any one of the preceding claims, characterized in that said opening (251) of said second guide member (205) comprises two portions of different diameters, a first portion having a diameter equal to a diameter of the portion of said protrusion (103) received in said opening of said second guide member, a second portion having a diameter smaller than said diameter of the first portion.

10. Assembly device (1) according to any one of the preceding claims, characterized in that said protuberance (103) is composed of two portions of different circular sections, each portion comprising two flats, the first flat (111, 113) ) of each portion having the same angular position on said protuberance as said lock, the second flat (110, 112) of each portion being diametrically opposed to the first flat of each portion.

11. Assembly device (1) according to any one of the preceding claims, characterized in that said opening (251) of the second guide member (205) is blind and comprises a spring (280) housed in the bottom of said blind opening, said spring being compressed between the bottom of said blind opening and a free end (107) of said protuberance (103) of elongated shape in a locked position of said removable assembly device (1).

12. Assembly device (1) according to any one of the preceding claims, characterized in that each part of the male-female pair comprises a connecting system adapted to connect a part of the male-female pair to one of the parts to be assembled. between them, said connection system taking the form of a closed loop (101) or of a fixing plate (220).

13. Shoe element characterized in that it is composed of a sole element (2) and a removable assembly device (1) according to any one of the preceding claims, and in that said device d assembly is arranged on said sole element, preferably in a notch of said sole element.

14. Shoe (6) characterized in that it comprises a shoe element according to the preceding claim.