FR3077274A1 - CLOSURE DEVICE FOR CONTAINER - Google Patents

Abstract

The closing device (100) for a container (1000) comprises a part (101) having an opening (102) and a closing member (103) comprising parts (103a, 103b, 103c, 103d) integral with the piece (101). ). The portions (103a, 103b, 103c, 103d) of the closure member (103) are configured to cooperate to close said opening (102) in a first configuration of the closure device (100), and to form a passage (104) for a body (10) in a second configuration of the closure device (100), said second configuration being obtained by a change of state of at least one of the portions (103a, 103b, 103c, 103d) of the closure member (103) caused by pressure exerted by the body (10) on the closure member (103). The closure device (100) is configured to automatically switch to its first configuration when the pressure exerted by the body (10) on the closure member (103) ceases. Each portion (103a, 103b, 103c, 103d) of the closure member (103) is adjacent to at least two other portions (103a, 103b, 103c, 103d) of the closure member (103).

Description

CLOSING DEVICE FOR CONTAINER

Technical field of the invention The technical field of the invention relates to the closure of containers. More particularly, the technical field of the invention relates to chalk bags used by climbers, for example in a climbing gym, or outdoors.

STATE OF THE ART Patent application US2012 / 0170873 describes a container, a part of which delimits an opening allowing access to an interior space of the container. This opening is associated with an automatic closing device preventing articles placed in the container from falling out of this container. The closing device comprises two elements urged one in the direction of the other in order to ensure the closing of the opening. The passage of a user's hand through the closure device allows it to be placed in an opening configuration, and the removal of the hand allows the automatic passage of the closure device in a closing configuration. A disadvantage of this container is that its ergonomics can be improved in the sense that the passage of the hand is not easy due to the use of two ends of the elements in contact with each other in the configuration of closing: it may be difficult for the hand to pass through the closing device. Furthermore, when it is removed from the container, the hand can hang on to the ends of the elements, which can make its removal unpleasant for the user.

In the context of climbing, it is common for a climber to use a chalk bag. Magnesia can preferably be in the form of a powder used to improve the grip of the hands of a climber when climbing. The drawback of using magnesia in an environment such as a climbing gym is that it causes air pollution in this environment. This pollution can lead to the inhalation of magnesia powder by those present in the climbing gym. There is therefore a need to find a solution for limiting the air pollution caused by the use of magnesia. To partially meet this need, climbers use chalk bags which can be closed. For example, patent application DE102012020709 describes a chalk bag whose closure is ensured by magnets. A disadvantage of the chalk bag as described in patent application DE102012020709 is that the transition from its closed configuration to its open configuration is difficult with one hand because it requires pulling the bag to open it before to be able to use it: the risk is that handling such a bag could cause the climber to fall. In this sense, there is a need to improve the chalk bag described in patent application DE102012020709 to facilitate its use, in particular in a climbing route.

OBJECT OF THE INVENTION The aim of the invention is to remedy one or more of the abovementioned drawbacks. In particular, the invention makes it possible to improve the ergonomics of a closure device, in particular of the type to be handled with one hand.

We tend towards this goal thanks to a closure device for a container, said closure device comprising:

- a room with an opening,

- a closure member comprising parts integral with the part, the parts of the closure member being configured so as to:

o cooperate to close said opening in a first configuration of the closing device, o form a passage for a body in a second configuration of the closing device, said second configuration being obtained by a change of state of at least one, preferably of each, parts of the closure member caused by pressure exerted by the body on the closure member, said closure device being configured to automatically switch to its first configuration when the pressure exerted by the body on the member closure ceases, this closure device is characterized in that each part of the closure member is adjacent to at least two other parts of the closure member.

Such a closure device has the advantage that its opening is carried out by a body, such as at least a part of the hand of a climber, or at least the hand of the climber, or the hand and the wrist. of the climber, this body passing through the opening and the closing member. Thus, when a container is equipped with such a closure device, the introduction of the body into the container allows the closure device to be opened by cooperation of the body with the closure member. Furthermore, another advantage of this closing device is that it allows an automatic return / passage to its first configuration making it possible to close the opening by the closing member when the body ceases to cooperate with the closing member. Thus, it follows from these advantages that the closure device is particularly suitable for the practice of climbing in the case of its integration into a chalk bag without discomfort of the climber during his climb, and while limiting the diffusion of the magnesia contained in the chalk bag outside the chalk bag.

The closure device may include one or more of the following characteristics:

• the pressure exerted by the body on the closure member is such that it allows passage of, that is to say varies the closure device from its first configuration to its second configuration, and in particular while allowing the body to pass through the opening;

• in the first configuration, the parts of the closure member are attached two by two at a distance from the part to maintain each of the parts of the closure member in a state ensuring the closure of the opening;

• each part of the closure member has two attachment portions, and, in the first configuration, each attachment portion of said portion is attached to one of the attachment portions of one of the portions of the member closure adjacent to said part;

• each attachment portion is associated with at least one magnet so that two attachment portions are attached by magnetic attraction between the at least two magnets;

• each part of the closure member has two entanglement portions, and, in the first configuration, each entanglement portion of said part becomes entangled with one of the entanglement portions of one of the parts of the member closing adjacent to said part;

• each part of the closing device includes:

one side mounted to the workpiece, two side edges converging one towards the other away from the side mounted to the workpiece;

Each lateral edge comprises one of the entanglement portions and one of the attachment portions, the entanglement portion of said lateral edge being interposed between the attachment portion of said lateral edge and the side of the part of the closure member having said side edge;

• in the first configuration, the parts of the closure member are brought together so that the closure member takes the form of a disc;

• the closure device comprises a return member arranged so as to cooperate with the closure member so that said return member participates in the automatic passage to the first configuration;

• the return member is an elastic washer;

• the part is a ring comprising two annular parts assembled so as to ensure the fixing of the parts of the closure member to said ring;

• the opening delimits an opening zone, and in the first configuration and at any point of the opening zone, a straight line passing through said point and through the opening also passes through the closing member.

The invention also relates to a container for powder, this container comprising a closure device as described. Preferably, the powder container forms a chalk bag for climbing activity.

Brief description of the drawings [009] The invention will be better understood on reading the detailed description which will follow of at least one particular embodiment, given solely by way of nonlimiting example and made with reference to the drawings in which :

- Figure 1 illustrates a perspective view of a closure device according to a particular embodiment of the invention;

- Figure 2 illustrates a side view of the closure device according to the particular embodiment of the invention as illustrated in Figure 1;

- Figures 3 and 4 illustrate schematic sectional views of a container equipped with the closure device of the type of Figure 1 respectively in a first configuration and in a second configuration;

- Figure 5 illustrates a particular embodiment of a part of the closure member used in the context of the closure device according to Figure 1;

- Figure 6 illustrates an exploded view of the various components of the closure device illustrated in Figure 1;

- Figure 7 illustrates an alternative embodiment of a part of the closure member of the closure device.

In these figures, the same references are used to designate the same elements.

Furthermore, the elements shown in the figures are not necessarily to scale to facilitate the understanding of these figures.

Detailed Description In this description, a climber is a person who practices climbing, whether indoor or outdoor. The climber's climb corresponds to his ascent of a climbing route or a boulder.

In the present description, magnesia is in particular a powder used by the climber to improve the grip of his hands in his climbing activity as mentioned in the prior art part.

In particular, the invention relates to a closure device for a container.

As illustrated in Figures 1 to 4, the closure device 100 for container 1000 comprises a part 101. This part 101 has an opening 102, in particular this opening 102 is open. This piece 101 can also be called a stiffening piece when it has this characteristic as will be seen below. The opening 102 is in particular intended to allow communication between the outside of the container 1000 and an internal space 1001 of the container 1000 when the closing device 100 is integrated into the container 1000. It is also said that the part 101 delimits the opening 102 In Figures 1 and 2, only the closure device 100 is shown at least in part, while in Figures 3 and 4 there is shown the container 1000 having the closure device 100 in sectional views. The closing device 100 comprises a closing member 103. This closing member 103 comprises parts 103a, 103b, 103c, 103d integral with the part 101. By "parts 103a, 103b, 103c, 103d of the closing member 103 integral with the part 101 ", it is preferably understood that these parts 103a, 103b, 103c, 103d are mounted / fixed there. The parts 103a, 103b, 103c, 103d of the closure member 103 are configured so as to cooperate, in particular with one another, in order to close the said opening 102 in a first configuration, also called the closure configuration, of the closure device 100 shown in By way of example in FIGS. 1 and 3. Preferably, the opening 102 delimits an opening zone (represented by the dotted lines referred to by the reference Z1 in FIGS. 3 and 4), and in the first configuration and at any point of the opening zone Z1, a straight line passing through said point and through the opening 102 also passes through the closing member 103: in this sense the closing member 103 advantageously makes it possible to completely close the opening 102 in the first configuration of the closure device 100, in particular with a view to limiting the diffusion of powder or magnesia as will be seen later. Furthermore, these parts 103a, 103b, 103c, 103d of the closure member 103 are configured so as to form a passage 104 (represented by a dotted area in FIG. 4) for a body 10 in a second configuration, also called configuration of the opening, of the closing device 100. FIGS. 2 and 4 precisely illustrate the second configuration in which the passage 104 is formed. The second configuration is obtained by a change of state of at least one, and preferably each, of the parts 103a, 103b, 103c, 103d of the closure member 103 caused by a pressure exerted by the body 10 on the closing member 103. In particular, by “the second configuration is obtained by a change of state”, it is meant that the closing device 100 adopts this second configuration following the change of state mentioned. In general, the pressure exerted by the body 10 on the closure member 103 is such that it allows passage of, that is to say, varies, the closure device 100 from its first configuration to its second configuration, and in particular while allowing the body 10 to pass through the opening 102. The pressure exerted by the body 10 on the closing member 103 to allow the passage from the first configuration to the second configuration may correspond to an introduction of at least part of the climber's hand through the opening 102 without requiring pronounced support. According to a particular example, the pressure exerted by the body 10 on the closure member 103 to allow the passage from the first configuration to the second configuration can be compared to a support of a weight placed, in the first configuration, in the center of the closing member 103 and in contact with a surface of 15 cm ² of the closing member 103, this weight possibly being a weight of 500 grams: such a pressure is very particularly suitable when the body 10 is at least a part from the hand of the climber. In normal and preferred use, the body 10 cooperates with the closing member 103 so that each part 103a, 103b, 103c, 103d of the closing member 103 changes state to allow the second configuration to be obtained. Alternatively, if the body 10 comes to bear against one, or only some, of the parts 103a, 103b, 103c, 103d of the closing member 103, only this or these parts 103a, 103b, 103c, 103d of the member of closure 103 can change state to obtain the second configuration. Thereafter, the change of state is notably applied to each of the parts 103a, 103b, 103c, 103d of the closing member 103, but one can consider as an alternative the change of state of at least one of the parts of the closing member 103: that is to say the change of state of one, or more, or of all the parts 103a, 103b, 103c, 103d of the closing member 103. By "pressure exerted by the body 10 on the closing member 103 "means that the body 10 is urged against the closing member 103, in particular in a direction F1 (see FIG. 4) allowing it to pass through the closing member 103 in order to penetrate into the internal space 1001. In particular, each part 103a, 103b, 103c, 103d of the closure member 103 changing state to allow the second configuration to be obtained is subjected to a pressure exerted by the body 10. More particularly, the change of state of each of the parts 103a, 103b, 103c, 103d of the organ closure 103 is caused by a pressure exerted by the body 10 on each of the parts 103a, 103b, 103c, 103d of the closing member 103. In other words, the pressure exerted by the body 10 on the closing member 103 can correspond to pressures distributed over each of the parts 103a, 103b, 103c, 103d of the closing member 103. The change of state of each part 103a, 103b, 103c, 103d of the closing member 103 may be a deformation or a displacement of the corresponding part 103a, 103b, 103c, 103d of the closing member 103. By “pressure exerted by the body 10”, it is understood in particular that this body 10 comes to press on the closing member 103. By moreover, the closure device 100 is configured to pass, that is to say return, automatically to its first configuration when the pressure exerted by the body 10 on the closure member 103 ceases: that is to say when the pressure exerted by the body 10 on the organ closing 103 is released. The automatic transition to the first configuration is notably initiated from the second configuration. In particular, in the second configuration (FIG. 4), the body 10 passes through the opening 102 and passes through the closing member 103. In FIG. 2, the body 10 is not shown for reasons of clarity. It is understood from what has been described above that an advantage of such a closure device 100 is that the interactions of the user, in particular of the climber when climbing, with this closure device 100 to enable him to '' alternate between its first configuration and its second configuration are limited: it is therefore simple to use since it is in particular the action of inserting the hand into the container 100 through the opening which participates in the passage of the first configuration in the second configuration, and that it is in particular the action of removing the hand from the container 1000 which participates in the transition from the second configuration to the first configuration. Furthermore, each part 103a, 103b, 103c, 103d of the closure member 103 is adjacent to at least two other parts of the closure member 103, this being particularly true in the second configuration and in the first configuration. In other words, the closing member 103 comprises at least three parts 103a, 103b, 103c, 103d. This particular arrangement facilitates the passage of the body 10 through the closure member 103. In Figures 1 to 4, there is shown the closure member 103 in four parts 103a, 103b, 103c, 103d, of course the closing member 103 can also have three parts, or more than four parts. The advantage of using a closure member 103 with at least three parts is that the transition from the first configuration to the second configuration is facilitated since the applied forces are preferably distributed over more than two parts 103a, 103b, 103c, 103d of the closing member 103. Furthermore, the increase in the number of parts 103a, 103b, 103c, 103d of the closing member 103 makes it possible, when the change of state of each of these parts 103a, 103b, 103c, 103d is induced by a deformation of the corresponding part 103a, 103b, 103c, 103d of the closing member 103, to facilitate the deformation of the parts 103a, 103b, 103c, 103d of the closing member 103: plus the dimensions d 'a part 103a, 103b, 103c, 103d of the closure member 103 are small the more its deformation is easy to implement. The reduction in the dimensions of the parts 103a, 103b, 103c, 103d of the closing member 103, possible thanks to the closing member 103 comprising at least three parts, makes it possible to facilitate the transition from the first configuration to the second configuration and conversely, even if there is at least one, or only one, of the parts of the closure member 103 which changes state as described above.

Preferably, the change of state of each of the parts 103a, 103b, 103c, 103d of the closure member 103 accompanying the transition from the first configuration to the second configuration is a curvature, or more generally a deformation. In other words, the second configuration is obtained by curvature / deformation of each of the parts 103a, 103b, 103c, 103d of the closing member 103. It will then be understood that each of the parts 103a, 103b, 103c, 103d of the member of closure 103 is formed from a flexible material. The flexibility of the material is such that the support of the body 10 on the closing member 103 makes it possible to induce stresses within the parts 103a, 103b, 103c, 103d of the closing member 103 from which it results. deformation of these parts 103a, 103b, 103c, 103d. Thus, in the first configuration, the parts 103a, 103b, 103c, 103d of the closure member 103 are joined together to close the opening 102, and the transition from the first configuration to the second configuration can in particular be implemented by progressive separation of the parts 103a, 103b, 103c, 103d of the closing member 103 in particular in the direction of a bottom 1002 of the container 1000 as shown in FIGS. 3 and 4.

In particular, the parts 103a, 103b, 103c, 103d of the closure member 103 comprise a fabric or are made of fabric, for example the mentioned fabric is formed from polyester. The advantage of polyester is that it limits the adhesion of magnesia. The fabric of the parts 103a, 103b, 103c, 103d of the closure member 103 may, for example, have a denier value of between 100 denier and 500 denier: the denier value (corresponding to the weight in grams for 9 meters of along the thread used to form the fabric) chosen from the range described is very particularly suitable for producing the closure member 103 operating in the manner as described above.

Furthermore, the parts 103a, 103b, 103c, 103d of the closure member 103 may each include a coating of polyurethane (the acronym of which is PU) or of polyvinyl chloride (of which the acronym is PVC). These coating materials are each particularly suitable for stiffening the parts 103a, 103b, 103c, 103d of the closure member 103 while giving the latter the flexibility sought for the transition from the first configuration to the second configuration. Furthermore, these coating materials also each make it possible to give each of the parts 103a, 103b, 103c, 103d a “shape memory” property favoring the return to the first configuration when the support of the body 10 on the closing 103 is released. Furthermore, yet another advantage of the coating used is that it improves the mechanical properties of the part 103a, 103b, 103c, 103d of the closure member 103 which comprises it: this prevents the fabric from fraying, and this reinforces the solidity of said part 103a, 103b, 103c, 103d of the closing member 103 at the place where it is secured to the part 101.

Preferably, the closure member 103 has only four parts 103a, 103b, 103c, 103d. This is particularly suitable when the body 10 is for example at least a part of the climber's hand, because this makes it possible to obtain a good compromise between ergonomics of use and cost of production of the closure device 100. The more the number is increased of parts of the closure member 103, the more efficient the operation of the closure member 103 is in closing or opening the opening 102, but this is to the detriment of the cost of manufacturing the closure device due to the multiplication of his pieces. The presence of four parts 103a, 103b, 103c, 103d of the closure member 103 is a satisfactory compromise.

The parts 103a, 103b, 103c, 103d of the closure member 103 are preferably identical, this makes it possible to facilitate their industrialization as well as the assembly of the closure device 100.

The invention is of course also relating to a container 1000, in particular for powder 1003, such a container 1000 then comprising the closure device 100 as described in this description. Such a container has the advantage of being easy to open and close using the body 10. In particular, the container 1000 forms, that is to say, is a chalk bag for climbing activity: the the powder mentioned is then magnesia, for example stored or not in a magnesia ball (“chalk bail” in English). An advantage of using such a closure device 100 in a chalk bag is that the climber can easily use it with one hand so that his other hand is used to hold onto a wall to be climbed. When the container 1000 is a container for powder, such as magnesia, the closure device 100 tends to prevent the powder from escaping from the container 1000 when the closure device 100 is in its first configuration: the The porosity of the closure device 100 to the powder is adapted to limit the passage of the powder from the internal space 1001 of the container 1000 towards the outside of the container 1000, although certain particles of powder may still escape.

In the first configuration of the closure device 100, the parts 103a, 103b, 103c, 103d of the closure member 103 are preferably attached in pairs, in particular by magnetic attraction implemented by magnets 106 of the device closing 100, at a distance from the part 101 to maintain each of the parts 103a, 103b, 103c, 103d of the closing member 103 in a state ensuring the closing of the opening 102. This state can be a normal state, in particular not curved / not deformed in opposition to the state of these parts 103a, 103b, 103c, 103d of the closure member 103 in the second configuration. In the first configuration, the parts 103a, 103b, 103c, 103d of the closure member 103 are in particular in pairs contact. In other words, when the closing member 103 comprises at least three parts 103a, 103b, 103c, 103d, each of the parts 103a, 103b, 103c, 103d of the closing member 103 is attached to two other parts 103a, 103b , 103c, 103d of the closure member 103 which are adjacent to it. In addition to the function of maintaining the closure in the “normal” state of the closure device 103, that is to say when no pressure is applied to it by the body 10 mentioned above, the fasteners make it possible to limit the passage of the powder and therefore its diffusion through the opening 102. Furthermore, in this case the closing device 100 can be configured such that a magnetic attraction, implemented by the magnets 106 mentioned above , participates in the automatic transition to the first configuration.

In the first configuration, two adjacent parts of the closure member 103 can be attached to each other by attachment portions 105a,

105b (Figure 1) belonging respectively to one of the parts 103a and to the other of the parts 103d to be attached. Each attachment portion 105a, 105b corresponds to an area of the corresponding portion of the closure member 103 brought into contact and attached with an attachment portion of another portion of the closure member 103 in the first configuration . In other words, in the first configuration of the closing device 100, pairs of adjacent and attached parts of the closing member 103 are formed, and for any pair of adjacent and attached parts (in FIG. 1, four pairs are shown (103a , 103b); (103b, 103c); (103c, 103d); (103d, 103a)) of the closure member 103, each of the parts of said pair of adjacent and attached parts includes a fastening portion 105a, 105b and said attachment portions 105a, 105b are attached to each other. The use of such attachment portions 105a, 105b is preferred since this has the advantage of forming localized attachment zones each of a size adapted to the force to be applied to the parts 103a, 103b, 103c, 103d of the 'closure member 103 to allow detaching the attachment portions 105a, 105b during the transition from the first configuration to the second configuration. According to another formulation, each part 103a, 103b, 103c, 103d of the closure member 103 comprises two attachment portions 105a, 105b, and, in the first configuration, each attachment portion 105a, 105b of said portion of the closure member 103 is attached to one of the attachment portions of one of the portions of the closure member 103 adjacent to said portion of the closure member 103. In other words, in the first configuration, for each portion 103a, 103b, 103c, 103d of the closure member 103, one of the attachment portions 105a of said portion of the closure member 103 is attached to one of the attachment portions of another of the portions of the closure member 103 adjacent to said part of the closure member 103, and the other of the attachment portions 105a of said portion of the closure member 103 is attached to one of the attachment portions of another another part of the closing member 103 adjace nte to said part of the closing member 103. In particular, in the first configuration, each part 103a, 103b, 103c, 103d of the closing member 103 is attached to two other parts of the closing member 103 by its attachment portions each attached to one of the attachment portions of one of the other two parts of the closure member 103, this making it possible to improve the maintenance in the first configuration. In Figure 1, the dotted attachment portions are not directly visible because they are covered.

Preferably, each attachment portion 105a, 105b is associated with at least one magnet 106 (the magnets 106 are represented schematically by dotted rectangles in Figures 1 and 5 because they are covered and not directly visible, on the Figure 2 they are not shown for reasons of clarity) so that two attachment portions 105a, 105b attached are by magnetic attraction between at least two magnets 106, in particular respectively associated with the two attachment portions 105a, 105b to be attached: each of these two magnets 106 is fixed to one of the two attachment portions 105a, 105b to be attached. In fact, each magnet 106 can be attached to, or attached to, a clip portion 105a, 105b. Each magnet 106 may belong to a corresponding attachment portion 105a, 105b. For example, each magnet 106 associated with a fastening portion 105a, 105b can be by gluing, by sewing a fold of the fastening portion 105a, 105b so as to accommodate said magnet 106 in the portion of attaches 105a, 105b, or by any other solution within the reach of the skilled person. The advantage of using magnets 106 is that the magnetic attraction between these magnets 106 can be chosen in a suitable manner to, on the one hand, ensure that the opening 102 is kept closed by the closing member 103 as long as a sufficient effort is not applied to the closing member 103 by the body 10, and, on the other hand, at least partially ensuring the automatic passage to the first configuration by means of the magnetic attraction between these magnets 106. In other words, when the body 10 withdraws, it follows that the pressure which it exerted on the closure member 103 will reduce until long term be canceled when the body 10 is no longer in contact with the closure member 103: concomitantly the attraction between the magnets 106 of two attachment portions 105a, 105b to be attached will increase until these attachment portions 105a, 105b are brought into contact, from which it will result that the first configuration is t obtained. Preferably, each attachment portion 105a, 105b is associated with two magnets 106.

The magnets 106 can be permanent magnets. Preferably, the magnets 106 are neodymium magnets, such magnets have the advantage of having magnetic attraction characteristics adapted to the application while limiting their size / weight, it is thus possible to place them locally at the level of the attachment portions to maintain the desired flexibility of the parts of the closure member 103.

Alternatively, the magnets 106 can be replaced by a hook and loop fastening system, also called "scratch" in colloquial terms, making it possible to obtain a removable connection between two fastening portions 105a, 105b to be fastened between them. In general, any fastening system allowing the fastening of the fastening portions two by two in the first configuration can be used.

Preferably, when two adjacent parts 103a, 103b, 103c, 103d of the closure member 103 are attached to each other by two attachment portions 105a, 105b, these attachment portions 105a, 105b attached are in particular superimposed in a direction orthogonal to the plane of the opening 102 (represented by the plane P1 in FIG. 3, this plane P1 being perpendicular to the plane of FIG. 3). In the context of the use of the closure device 100, in particular within a container 1000 for powder, this makes it possible to create a difficult path to cover for the powder present in the container 1000, and thus limit the amount of powder that can escape from container 1000 when the closure device 100 of container 1000 is in its first configuration.

In order to improve the closing of the opening 102, and in particular to limit the amount of powder that can escape from the container 1000 when the closing device 100 of the container 1000 is in the first configuration, the parts of the 'closure member 103 may be partially entangled two by two. In other words, in the first configuration, pairs of parts of the adjacent and entangled closure member 103 are formed, and for any pair of adjacent and entangled parts, each of the parts of said couple comprises a tangle portion 107a, 107b, and said entanglement portion 107a, 107b of the parts of said pair are entangled (FIG. 1). According to another formulation, each part 103a, 103b, 103c, 103d of the closure member 103 comprises two entanglement portions 107a, 107b, and, in the first configuration, each entanglement portion 107a, 107b of said part of the closure member 103 becomes entangled with one of the entanglement portions of one of the parts of the closure member 103 adjacent to said part of the closure member 103 (Figures 1 and 5). In other words, in the first configuration, for each part 103a, 103b, 103c, 103d of the closing member 103, one of the entanglement portions 107a of said part of the closing member 103 is entangled with a of the entanglement portions of another of the parts of the closure member 103 adjacent to said part of the closure member 103, and the other of the entanglement portions 107a of said part of the closure member 103 entangled with one of the entangling portions of yet another of the parts of the closing member 103 adjacent to said part of the closing member 103. In particular, in the first configuration, each part 103a, 103b, 103c , 103d of the closure member 103 is entangled with two other parts of the closure member 103 by its entanglement portions 107a, 107b each entangled with one of the entanglement portions of one of the other two by ties of the closing member 103, this improving the closing of the opening 102 in the first configuration. The proposed entanglement tends to form a barrier to the passage of the powder. In FIGS. 1 and 5, the entanglement portions 107a, 107b are each represented by the repetition of a pattern, for example triangular, the dotted parts of these patterns (FIG. 1) correspond to areas not directly visible from the portions tangle because covered. According to another formulation, the entanglement portions are each formed in a sawtooth pattern. As an alternative, the top of the teeth can be truncated, it is then said that the pattern takes the form of a trapezoid whose small base locally delimits a fraction of the periphery of the part 103a, 103b, 103c, 103d concerned of the organ. 103. The advantage of a trapezoid-shaped pattern is, on the one hand, aesthetic, and, on the other hand, technical because it makes it possible to limit the superposition of the parts 103a, 103b, 103c, 103d at the level entanglement portions 107a, 107b to facilitate the transition from the second configuration to the first configuration of the closure device 100. Alternatively, the entanglement portions 107a, 107b may each be formed by portions of threads or fibers capable of become entangled: the portions of threads, or fibers, are free to move along their length, and are nonwoven between them.

In particular, each part 103a, 103b, 103c, 103d of the closure member 103 has a side 108 mounted to the part 101 (Figures 3, 4 and 5) and two edges 109a, 109b, also called side edges . The two lateral edges 109a, 109b of each part 103a, 103b, 103c, 103d converge towards one another, moving away from the side 108 of said part 103a, 103b, 103c, 103d mounted to the part 101. In particular, the two lateral edges 109a, 109b of the same part 103a, 103b, 103c, 103d converge towards one another in the direction of the center of the opening 102 in the first configuration. This particular shape of the parts 103a, 103b, 103c, 103d is very particularly suitable for closing an opening 102, in particular a circular opening 102. Furthermore, it has the advantage of facilitating the manufacture of the parts 103a, 103b, 103c, 103d as well as their integration into the closure device 100. Preferably, in the present description, two parts 103a, 103b, 103c, 103d of the 'closure member 103 are said to be adjacent in the first configuration when one of the side edges of one of the two adjacent parts is in contact with one of the side edges of the other of the two adjacent parts.

If necessary, only part of each lateral edge 109a, 109b, proximal to the center of the opening 102 in the first configuration, forms a corresponding attachment portion 105a, 105b: this makes it possible to obtain an automatic closure. efficient closing device 103.

Preferably, and as illustrated in FIG. 5, this being particularly valid for each part 103a, 103b, 103c, 103d of the closure member 103, each lateral edge 109a, 109b comprises one of the entanglement portions 107a, 107b and one of the attachment portions 105a, 105b, the entanglement portion 107a, 107b of said lateral edge 109a, 109b being interposed between the attachment portion 105a, 105b of said lateral edge 109a, 109b and the side 108 of the part 103a, 103b, 103c, 103d of the closure member 103 comprising said lateral edge 109a, 109b. More particularly, for each lateral edge 109a, 109b, the entanglement portion 107a, 107b of said lateral edge 109a, 109b directly connects the attachment portion 105a, 105b of said lateral edge 109a, 109b to the side 108 of the part 103a, 103b , 103c, 103d having said lateral edge 109a, 109b. Thus, from the intersection of the side 108 with the lateral edge 109b, this lateral edge 109b successively comprises the entanglement portion 107b, then the attachment portion 105b. Furthermore, from the intersection of the side 108 with the lateral edge 109a, this lateral edge 109a successively comprises the entanglement portion 107a, then the attachment portion 105a. This has the advantage of not having to attach two adjacent lateral edges over their entire length so as to limit the overlapping to be attached of said two lateral edges to facilitate the closing of the opening 102 by the closing member 103, while making it possible to limit the diffusion of powder through the closure member 103 thanks to the entanglement of the entanglement portions 107a, 107b. Furthermore, this also makes it possible to limit the forces to be applied to the parts 103a, 103b, 103c, 103d during the transition from the first configuration to the second configuration.

According to one embodiment, the parts 103a, 103b, 103c, 103d are shaped so as to overlap locally only two by two in the first configuration: there cannot locally be a superposition of more than two parts 103a, 103b , 103c, 103d. This is to avoid hindering the return to the first configuration from the second configuration. To implement this, the lateral edges 109a, 109b of each part 103a, 103b, 103c, 103d do not meet directly: on the contrary, they are connected by one end 110 (FIG. 5) of said part 103a, 103b, 103c , 103d, this end 110 being opposite the side 108 of said part 103a, 103b, 103c, 103d. This end 110 gives a truncated appearance to the corresponding part 103a, 103b, 103c, 103d.

Preferably, in the first configuration, the closure member 103 forms a cover, or more specifically takes the form of a disc: the parts 103a, 103b, 103c, 103d of the closure member 103 are joined so that the closure member 103 adopts this disc shape. This allows an adequate closure of the opening 102. In this case, the parts 103a, 103b, 103c, 103d of the closure member 103 then preferably each adopt a general form of angular sector overlapping two by two with attachment, and intertwining two by two, in the first configuration.

The part 101 is preferably rigid, it thus makes it possible to form an adequate support for the parts 103a, 103b, 103c, 103d of the closure member 103, it also makes it possible to stiffen the closure device 100 at the opening 102 to obtain an adequate opening 102. By “rigid” is meant in particular that this part 101 remains of unchanged shape during the passage from the first configuration to the second configuration and vice versa: in normal condition of use of the closure device 100 (for example during the climber's climb and the cooperation of his hand with the closure member 103 to pass from the first configuration to the second configuration of the closure device 100), the part 101 does not change deformed. The advantage linked to the rigidity of the part 101 is to ensure that the closure member 103 adopts the same general shape each time that the closure device 100 is in its first configuration. The part 101 is preferably made of plastic to provide the desired rigidity, for example this plastic is polycarbonate.

The part 101 is preferably a ring, an internal space delimiting the opening 102, this form of ring is particularly suitable for the disc shape of the closure member 103 mentioned above. The ring is preferably of circular shape, although other shapes can be envisaged such as for example a square, oval, rectangular shape as required. The circular shape is particularly suitable for the usual forms of chalk bag. In the case of a circular shape of the ring, it preferably has an external diameter and an internal diameter. The internal diameter of the ring gives the dimension of the opening 102. In the context of a chalk bag for climbing activity, the internal diameter of the ring, in particular of circular shape, can be between 8cm and 14cm, and the external diameter of the ring can be between 8.5cm and 14.5cm, of course these diameters can be adapted according to the destination of use of the chalk bag, for example, during a climb on a climbing route requiring an insurance of the climber or in activity of climbing of block the dimensions are not necessarily the same, for example for a reason of weight sought to limit in climbing route.

It was previously mentioned an automatic transition to the first configuration, especially when the part or parts 103a, 103b, 103c, 103d of the closure member 103 are no longer constrained by the body 10. If necessary, this automatic passage function can at least partly be implemented by the use of magnets 106. According to a particular embodiment, which can be taken in combination or not with magnets 106, the closing device 103 may include a return member 111 (Figures 2, 3, 4) arranged to cooperate with the closure member 103 so that said return member 111 participates in the automatic transition to the first configuration, in particular by exerting a return force on each part of the closing member 103 having changed state to allow the second configuration to be obtained. The biasing force or forces are applied in particular when the passage 104 is crossed by the body 10. In particular, in the second configuration, at least one, preferably each, of the parts 103a, 103b, 103c, 103d of the member closure 103 bears against the return member 111 which exerts a return force on these parts 103a, 103b, 103c, 103d of the closure member 103 which bears against the return member 111, in particular to promote the ( that is to say participate in) automatic passage to the first configuration, in particular during the withdrawal of the body 10 relative to the closing member 103. In other words, in the second configuration, the return member 111, notably deformed by the support (s) of the (or) parts of the closure member 103 on this return member 111, constantly urges the closure member 103 to tend to replace the parts 103a, 103b, 103c, 103d of the closing member 103 in the state that they occupy in the first configuration. The return member 111 may be an elastic washer, this elastic washer being perforated in particular in its center to allow the body 10 to pass. This elastic washer is notably mounted to the piece 101, preferably in contact with the closing member 103 Thus, it is understood that the elastic washer is configured to deform during the passage from the first configuration (Figures 1 and 3) to the second configuration (Figures 2 and 4), in particular the parts 103a, 103b, 103c, 103d of the 'closure member 103 presses on the elastic washer when passing from the first configuration to the second configuration. Furthermore, the elastic washer is configured to return to its initial shape while urging the parts 103a, 103b, 103c, 103d of the closing member 103 in order to place them in the position / state they occupy in the first configuration. When the elastic washer is combined with the magnets 106, this improves the automatic transition to the first configuration when the body 10 is removed from across the closing member 103.

The elastic washer may be made of an elastic textile material, it may comprise, or be made up of, elastane. The elastic washer may have an outer diameter and an inner diameter. The internal diameter of the spring washer corresponds to the diameter of the hole in the washer. In particular, the internal diameter is chosen so as to allow the body 10 to pass through the washer, thus the internal diameter can, if necessary, allow the hand of the climber to pass. To allow passage of the climber's hand, the internal diameter of the elastic washer can be between 4cm and 8cm. The external diameter of the elastic washer can be between 8.5 cm and 14.5 cm, and can in particular be equal to 12 cm (in particular, the external diameter of the elastic washer is equal to the external diameter of the ring to allow mounting of the ring washer): these values being particularly suitable for the practice of climbing for a container to be carried by the climber, and for which one seeks to limit the diffusion of magnesia out of the container by formation of a bottleneck around the climber's wrist.

The elastic washer can be as it is (or more particularly as its elastic material is), in the first configuration, facing (and in particular in contact with) each of the entanglement portions 107a, 107b: the elastic washer thus contributes to limiting the diffusion of powder out of container 1000. For example, if container 1000 has a part 1004 (FIGS. 3 and 4), in particular flexible and for example made of fabric, in which the powder is stored, a support on this part 1004 can propel powder in the direction of the closure member 103 which could escape in a privileged manner by interstices between two entangled portions 107a, 107b entangled. Therefore, the presence of the elastic washer 111 between the bottom 1002 of the container 1000 and the entanglement portions 107a, 107b allows, when the internal space 1001 of the container 1000 is compressed, to press the elastic washer 111 against the portions d 'entanglement 107a, 107b of the parts 103a, 103b, 103c, 103 of the closure member 103: this results in a limitation of the diffusion of powder out of the container 1000. Furthermore, to facilitate the transition from the first configuration to the second configuration, the attachment portions 105a, 105b are, in the first configuration, preferably facing the hole of the elastic washer, and in particular at a distance from the elastic material of the washer. Thus, in the second configuration, at least one, and preferably several or all, attachment portions 105a, 105b pass through the hole of the elastic washer.

It was mentioned above that the parts of the closure member 103 are integral with the part 101. In particular the part 101 forms a support for the parts 103a, 103b, 103c, 103d of the closure member 103 which are mounted there. There is therefore a problem to be solved in order to facilitate this mounting, and preferably while limiting the weight of the closure device 100. To respond to this problem, the part 101 is a ring, for example as described above. The ring has two annular parts 101a, 101b (visible in particular in FIGS. 1 to 4) assembled so as to ensure the fixing of the parts 103a, 103b, 103c, 103d of the closure member 103 to said ring. Furthermore, where appropriate, the two annular parts 101a, 101b of the ring also allow the mounting of the return member 111. These two annular parts 101a, 101b of the ring are nested one in the 'other by means of attachment members 112 (Figures 3 and 4) also called projections. Each attachment member can be a hook. Each attachment member 112 belongs to one of the two annular parts 101a, 101b of the ring and is inserted into a hole in the other of the two annular parts 101a, 101b of the ring. Furthermore, each attachment member 112 also passes through a through hole 113 (FIG. 5) corresponding to one of the corresponding parts 103a, 103b, 103c, 103d of the closing member 103, and if necessary through a through hole. matching spring washer. In particular, each part 103a, 103b, 103c, 103d of the closure member 103 has two holes 113 each crossed by a corresponding attachment member 112. Thus, the attachment members 112 participate in the assembly of the closure member 103 to the part 101, and if necessary participate in the assembly of the elastic washer to the part 101. In FIG. 3, the annular part 101b forms a part male ring comprising the attachment members 112 penetrating into the annular part 101a which forms a female annular part.

The closure device 100 is intended to be integrated into a container 1000. In this sense, there is a need to find a solution to facilitate its mounting to the part 1004 (visible in Figures 3 and 4) of the container 1000 allowing at least partially delimit the internal space 1001. This part 1004 in particular forms a pocket. To meet this need, the closure device 100 comprises a support 114 (FIGS. 1 to 4), in particular a textile support. This support 114 forms a sheath, or a sleeve, fixed to the piece 101. Furthermore, this support 114 is intended to be fixed, for example by sewing, to the part 1004 of the container 1000. In FIGS. 3 and 4, the support 114 can, for example, be sewn or glued to the part 1004 of the container 1000. In FIGS. 1 and 2, only a portion of the support 114 is shown to allow the other elements of the closure device 100 to be viewed, thus the support 114 extends all around the piece 101. The support 114 can be cut and drilled in such a way that, once sewn to the rest of the container, it forms a rigid rim for fixing the piece 101. [0041] The figure 6 is an exploded view of the closure device 100 according to its embodiment comprising the ring in two annular parts 101a, 101b, the support 114, the elastic washer forming the return member 111, the parts 103a, 103b,

103c, 103d of the closing member 103. Thus, in FIG. 6, starting from the annular part 101b of the part 101, there is the successive stack of the following elements making it possible to obtain what is shown in FIG. 1: the support 114 coming in particular into contact with the annular part 101b and having holes

115 traversed by the attachment members 112 of the annular part 101b, the elastic washer coming in particular into contact with the support 114 and having holes

116 crossed by the attachment members 112 of the annular part 101b, the parts 103a, 103b, 103c, 103d of the closure member 103 coming in particular into contact with the elastic washer and having holes 113 traversed by the members of attachment 112 of the annular part 101b, the annular part 101a in contact with the parts 103a, 103b, 103c, 103d of the closing member 103.

A specific use of a chalk bag is now described. In an initial state (first configuration), the chalk bag is closed, the four parts 103a, 103b, 103c, 103d are kept in contact, in particular two by two, to close the opening 102 thanks to the magnetic force of magnets . When the climber's hand arrives at the entrance of the bag, it exerts a force directed towards the bottom of the bag, strictly greater than the force of attraction of the magnets to cause the separation of the four parts 103a, 103b, 103c, 103d by deformation of the latter towards the bottom of the bag. Once the climber's hand in the chalk bag, this hand comes to stir the chalk, making it volatile, however, the elastic washer tightened around the climber's wrist limits the diffusion of the chalk out of the chalk bag. Finally, when the climber removes his hand from the chalk bag, this allows the magnets to cooperate to cause, then maintain, the closing of the opening 102 by the closing member 103.

According to a variant for example as illustrated in Figure 7, for each part 103a, 103b, 103c, 103d of the closure member 103, each attachment portion 105a, 105b of said part 103a, 103b, 103c , 103d forms a rim forming an angle with a main portion 117 of said part 103a, 103b, 103c, 103d of the closure member 103. The magnets 106, represented by dotted rectangles are associated with this rim, in particular are housed in this ledge. Thus, it is understood that in the first configuration, it is formed of pairs of edges in contact, and preferably attached using the magnets 106. This variant can be combined with all that has been described previously, the only difference being the presence of these edges as attachment portions.

According to a particular embodiment, the ring is such that the opening 102 is included in a space delimited by said ring, and in the first configuration the parts 103a, 103b, 103c, 103d of the closing member 103 close opening 102 in this space. This has the advantage of limiting the dimensions of the closure member 103 relative to the rest of the container 1000 so as to optimize the volume of the internal space 1001 of the container 1000.

When the container 1000 is a chalk bag, it preferably includes a fastening system 118 making it possible to secure it to the climber, for example by attaching it to his waist or to his harness. The fastening system 118 may include a cord or a strap shown truncated in FIGS. 3 and 4.

The container 1000 can also be installed on the ground in a climbing room to allow climbers to use it before climbing. In this case, the container 1000 may include one or more closing devices 100 as described.

Any fabric mentioned in the present description is in particular such that it tends to prevent the passage of the magnesia powder, its mesh is therefore adapted as a function of the size of the particles of the magnesia powder to perform this function limiting the passage of the powder through the fabric.

The closure device 100 and the corresponding container 1000 can be easily manufactured. The use of the closure device 100 and the container 1000 as described is particularly suitable for the climbing field. In general, the closure device 100 can also be used in the field of fashion, industry, the medical environment, mechanics, where the passage of a body through a closure member is required. . An additional advantage of the closing device 100 is that it does not require motorized assistance or an electronic system to close or open.

In the context of a climbing activity, the present invention allows a significant improvement in the cleanliness of the chalk bags, thus contributing to the well-being of climbers, as well as to the improvement of the cleanliness of the gyms. climbing or different natural environments where chalk bags are likely to be used.

In the context of a climbing activity, the container forming a chalk bag can adopt dimensions such that it is included in a cylinder of height between 15cm and 30cm and diameter between 8cm and 25cm. Thus, a person skilled in the art is able to adapt the dimensions of the bag, in particular those described above to fit this bag into the volume of the cylinder mentioned.

Claims (14)

1. Closing device (100) for container (1000), said closing device (100) comprising: - a part (101) comprising an opening (102), - A closing member (103) comprising parts (103a, 103b, 103c, 103d) integral with the part (101), the parts (103a, 103b, 103c, 103d) of the closing member (103) being configured in order to : o cooperate to close said opening (102) in a first configuration of the closing device (100), o form a passage (104) for a body (10) in a second configuration of the closing device (100), said second configuration being obtained by a change of state of at least one of the parts (103a, 103b, 103c, 103d) of the closure member (103) caused by pressure exerted by the body (10) on the closure member ( 103), said closure device (100) being configured to automatically pass to its first configuration when the pressure exerted by the body (10) on the closure member (103) ceases, characterized in that each part (103a, 103b , 103c, 103d) of the closure member (103) is adjacent to at least two other parts (103a, 103b, 103c, 103d) of the closure member (103). 2. Closure device (100) according to the preceding claim, characterized in that, in the first configuration, the parts (103a, 103b, 103c, 103d) of the closure member (103) are attached two by two at a distance of the part (101) to maintain each of the parts (103a, 103b, 103c, 103d) of the closing member (103) in a state ensuring the closing of the opening (102). 3. Closure device (100) according to any one of the preceding claims, characterized in that each part (103a, 103b, 103c, 103d) of the closure member (103) comprises two attachment portions (105a, 105b), and in that, in the first configuration, each attachment portion (105a, 105b) of said portion is attached to one of the attachment portions of one of the parts of the adjacent closure member (103) to said party. 4. Closure device (100) according to claim 3, characterized in that each attachment portion (105a, 105b) is associated with at least one magnet (106) so that two attachment portions (105a, 105b ) attached are by magnetic attraction between at least two magnets (106). 5. Closure device (100) according to any one of the preceding claims, characterized in that each part (103a, 103b, 103c, 103d) of the closure member (103) comprises two entanglement portions (107a, 107b), and in that, in the first configuration, each entangled portion (107a, 107b) of said part is entangled with one of the entangled portions of one of the parts of the closure member (103) adjacent to said part. 6. Closure device (100) according to any one of the preceding claims, characterized in that each part (103a, 103b, 103c, 103d) of the closure member (103) comprises: - one side (108) mounted to the part (101), - two lateral edges (109a, 109b) converging one in the direction of the other while moving away from the side (108) mounted to the part (101). 7. Closure device (100) according to claims 3, 5 and 6 or claims 4, 5 and 6, characterized in that each lateral edge (109a, 109b) comprises one of the entanglement portions (107a, 107b) and one of the attachment portions (105a, 105b), the entanglement portion (107a, 107b) of said lateral edge (109a, 109b) being interposed between the attachment portion (105a, 105b) of said lateral edge (109a, 109b ) and the side (108) of the part (103a, 103b, 103c, 103d) of the closure member (103) comprising said lateral edge (109a, 109b). 8. Closure device (100) according to any one of the preceding claims, characterized in that, in the first configuration, the parts (103a, 103b, 103c, 103d) of the closure member (103) are joined together so that the closure member (103) takes the form of a disc. 9. Closure device (100) according to any one of the preceding claims, characterized in that it comprises a return member (111) arranged so as to cooperate with the closure member (103) so that said return member (111) participates in the automatic transition to the first configuration. 10. Closing device (100) according to the preceding claim, characterized in that the return member (111) is an elastic washer. 11. Closing device (100) according to any one of the preceding claims, characterized in that the part (101) is a ring comprising two annular parts (101a, 101b) assembled so as to ensure the fixing of the parts (103a , 103b, 103c, 103d) of the closure member (103) to said ring. 12. Closing device (100) according to any one of the preceding claims, characterized in that the opening (102) delimits an opening zone (Z1), and in that in the first configuration and at any point of the opening zone (Z1), a straight line passing through said point and through the opening (102) also passes through the closing member (103). 13. Container (1000) for powder (1003), characterized in that it comprises a closure device (100) according to any one of the preceding claims. 14. Container (1000) according to the preceding claim, characterized in that it forms a chalk bag for climbing activity.