EP3413863B1 - Child care item, tip specially adapted for such a child care item and method for mounting such a child care item - Google Patents

Description

The invention relates to a childcare article, to a tip specially adapted for such a childcare article as well as to a method of using such a childcare article.

In particular, the invention relates to a childcare article intended to be brought to the mouth by a child and applies in particular to a nipple intended to satisfy the child's need for suction and to soothe it.

Known teats comprise, on the one hand, a base comprising a collar and, on the other hand, a nozzle, also called a nipple, comprising a base secured to the base and a body intended to be placed in the mouth of the child.

To guarantee safety in use, in known teats, the base of the nozzle is rigidly fixed to the base. For example, the base of the tip can be molded into the base. The base of the end piece can also be provided with a skirt integrally formed with it and set between a collar portion of the base and a cover of the base.

However, the body of the end piece, for example made of rubber or silicone so that it can be put into the mouth by the child, is generally hollow and deformable with shape memory, that is to say deformable while having a determined shape in the absence of external constraints. The body can thus be deformed during suction to allow the child to find natural sensations. The body of the tip can then be quickly worn out, requiring immediate replacement of the nipple to avoid tearing of all or part of the tip which can cause ingestion of body parts or asphyxiation. The body of the mouthpiece placed in the child's mouth may also require replacement of the teat for hygienic reasons.

Teats in which the end piece is removably mounted on the base are also known, in particular documents EP 2,440,171 and FR 523 794 . In these teats, the base internally comprises a housing adapted to receive the base of the end piece so that the body of the end piece extends from the front face of the base. A device for locking the base of the nozzle in the housing of the base is generally provided to secure the retention of the nozzle on the base.

However, in known teats, mounting the tip on the base requires the ability to disassemble the base to be able to place the tip on the base from the rear. This results in a multiplication of parts that can be separated from each other, which not only complicates the mounting of the teat but above all poses safety problems. It can also happen that the subsequent assembly becomes impossible following the loss of one of the parts.

The invention aims to overcome the problems mentioned above.

• une embase présentant des faces avant et arrière opposées, l'embase comportant intérieurement un logement,
• au moins un embout comportant une base et un corps destiné à être placé dans la bouche de l'enfant, l'embout étant monté de manière amovible sur l'embase, la base étant reçue dans le logement de l'embase et le corps de l'embout s'étendant depuis la face avant de l'embase lorsque l'embout est monté sur l'embase,
• un dispositif de verrouillage de la base de l'embout dans le logement de l'embase, le dispositif de verrouillage comportant au moins un organe de verrouillage présentant une surface d'arrêt et monté sur l'un des éléments choisi parmi la base de l'embout et l'embase, et au moins un organe de butée présentant une surface de butée et prévu sur l'autre élément choisi parmi la base de l'embout et l'embase pour coopérer avec l'organe de verrouillage, l'organe de verrouillage étant déplaçable par rapport à l'organe de butée entre une position de verrouillage dans laquelle la surface d'arrêt interfère avec la surface de butée pour retenir la base de l'embout dans le logement de l'embase, et une position escamotée dans laquelle la surface d'arrêt n'interfère pas avec la surface de butée pour pouvoir déplacer l'embout par rapport à l'embase,

dans lequel le logement débouche sur la face avant de l'embase par une ouverture de montage, l'ouverture de montage et la base de l'embout étant conformées pour permettre une insertion de ladite base dans le logement de l'embase au travers de ladite ouverture de montage par la face avant de l'embase.To this end, according to a first aspect, the invention provides a childcare article intended to be brought to the mouth by a child, the childcare article comprising:

• a base having opposite front and rear faces, the base internally comprising a housing,
• at least one endpiece comprising a base and a body intended to be placed in the mouth of the child, the endpiece being removably mounted on the base, the base being received in the housing of the base and the body of the end piece extending from the front face of the base when the end piece is mounted on the base,
• a device for locking the base of the end piece in the housing of the base, the locking device comprising at least one locking member having a stop surface and mounted on one of the elements chosen from the base of the end piece and the base, and at least one stop member having a stop surface and provided on the other element chosen from the base of the end piece and the base to cooperate with the locking member, the member locking device being movable relative to the stop member between a locking position in which the stop surface interferes with the stop surface to retain the base of the nozzle in the housing of the base, and a retracted position in which the stop surface does not interfere with the abutment surface in order to be able to move the endpiece relative to the base,

wherein the housing opens onto the front face of the base by a mounting opening, the mounting opening and the base of the end piece being shaped to allow insertion of said base into the housing of the base through said mounting opening through the front face of the base.

Thus, the childcare article according to the invention allows replacement of the tip only by simple, quick and intuitive assembly of the tip on the base by the front face of the base, while guaranteeing the safety of use of the article by childcare. The invention also makes it possible to replace the end piece in order to comply with hygienic conditions.

The childcare article according to the invention also makes it possible to use the same base for several end pieces, where appropriate fulfilling different functions. The modularity of the childcare article is improved.

The base of the nozzle and the mounting opening may have a complementary shape.

The stop member can be provided on the base of the end piece and the locking member can be mounted on the base.

The base of the nozzle may have a lower end forming a lower end of the nozzle and an outer surface which extends from the lower end around a nozzle axis, and the housing of the base may have an inner surface around a housing axis, the housing being adapted to receive the base of the endpiece coaxially. The abutment member may be constituted by a recess formed on the external surface of the base of the end piece at a distance from the lower end, the recess having transverse surfaces perpendicular to the end axis of the end piece. one from the other, the transverse surface oriented in a direction opposite to the lower end forming the abutment surface. The locking member can be adapted to extend at least partially in the recess in the locking position, the locking member possibly having a surface transverse to the housing axis which is oriented in one direction. opposite the mounting opening and which forms the stop surface.

The lower end of the tip base can have a cross section with respect to the tip axis of dimensions less than or equal to the dimensions of the rest of the outer surface of the base.

The outer surface of the tip base can be cylindrical around the tip axis.

The inner surface of the housing of the base can have first and second side surfaces facing each other, and the base can also internally comprise a compartment opening into the first lateral surface of the housing through a locking opening, and a retaining notch. formed in the second lateral surface of the housing opposite the locking opening. The outer surface of the base of the end piece may have first and second opposite lateral surfaces intended to be placed respectively opposite the first and second surfaces. side of the housing, the recess extending along a recess axis perpendicular to the tip axis and being arranged to be aligned with the compartment locking opening and the retaining notch when the base of the tip is received in the housing of the base, the recess being through between the first and second side surfaces of the outer surface of the base of the tip. The locking member may have a free edge, the locking member being housed in the compartment in the retracted position and movable in a plane transverse relative to the housing axis towards the locking position in which the free edge of the locking member is retained in the retaining notch, the locking member extending through the recess in the locked position and when the end piece is mounted on the base.

In another embodiment, the recess may extend peripherally around the tip axis on the outer surface of the base of the tip, the recess having a bottom spaced from the outer surface of the base of the tip towards the tip axis. At least two locking members may respectively have free locking edges facing each other, the locking edges being shaped to define an opening substantially complementary to the bottom of the recess in the locking position of the locking, the locking members being movable in a transverse plane relative to the housing axis between the retracted position in which the locking edges are spaced from each other and the locking position in which the locking edges are brought together, the locking edges being placed in the recess in the locked position and when the end piece is mounted on the base.

The locking member can be displaceable in translation along a sliding axis perpendicular to the housing axis.

The cross sections of the locking member and the recess may be complementary, for example rectangular.

The locking device may further comprise an actuating member operable by a user and movable between a first position in which said actuating member places the locking member in the retracted position, and a second position in which said member actuation places the locking member in the locking position.

The actuator can be mounted on the pivoting base on a pivot axis parallel to the housing axis, the actuator having a surface actuator in contact with the locking member and arranged to move the locking member between the locking position and the retracted position by rotation of the actuating member about the pivot axis.

When the locking member is movable in translation, the actuating member can be placed under a lower surface of the locking member and have a finger extending parallel to the pivot axis while being offset with respect to said pivot axis, the finger carrying the actuation surface. The locking member may include a groove in which the finger of the actuating member is placed, the groove being arranged and shaped so that the finger slides in the groove when the actuating member is angularly moved between the first position and the second position. The result is a compact locking device with a small footprint.

When the base includes a compartment, the compartment may include an upper portion having the locking opening and housing the locking member in the retracted position, and a lower portion receiving the actuating member, the compartment having a surface. guide perpendicular to the housing axis at an interface between the upper and lower portions, the locking member in the retracted position resting on the guide surface of the compartment. The actuating member may comprise a support element arranged at a distance from the finger and shaped to present a support surface which is coplanar with the guide surface of the compartment, such that the support surface is in contact with the lower surface of the 'locking member in the retracted position.

The actuating member and the base of the endpiece may respectively comprise complementary locking elements, the locking elements being adapted so as not to interfere with each other in the first position of the actuating member. so as to be able to move the endpiece relative to the actuating member, and to interfere with one another in the second position of the actuating member so as to retain the endpiece on the member actuating.

The blocking elements may include first and second blocking surfaces, one on the actuating member and the other on the base of the end piece, the first and second blocking surfaces being cylindrical along blocking axes. respective and adapted to be fitted one on the other by respective fitting ends, the first blocking surface being provided with at least a groove which has an axial portion which extends from the fitting end of said first locking surface, and a circumferential portion adjoining the axial portion at a distance from the fitting end of said first locking surface, the second locking surface being provided with at least one radial lug arranged to slide in the axial portion of the groove when the first and second locking surfaces are fitted one on the other by the fitting ends, and for be retained in the circumferential portion of the groove by relative rotation of the first and second locking surfaces along the locking axes.

The body and the base of the end piece can be formed in one piece from a deformable shape memory material, the body and the base being hollow, the end piece comprising a core fitted into the base, the core comprising the one of the first and second blocking surfaces.

The locking device may include an elastic return member adapted to elastically bias the locking member towards the locking position.

The outer surface of the base of the endpiece may have a singularity and the mounting opening and, where appropriate, the housing may have a complementary singularity adapted to cooperate with the singularity so as to allow the base of the base to be mounted. end piece in the housing of the base in a defined orientation.

The child care article may include a plurality of tips. The plurality of tips can include at least two different tips from each other.

The childcare article can form a nipple, the base comprising a collar and the endpiece being a nipple.

According to a second aspect, the invention relates to a tip specially adapted for a childcare article as defined above, the tip being intended to be removably mounted on a base having opposite front and rear faces and internally comprising a housing, the housing having an inner surface around a housing axis and opening onto the front face of the base by a mounting opening. The endpiece comprises a base intended to be received in the housing of the base and a body intended to extend from the front face of the base and to be placed in the mouth of a child, the base of the tip having a lower end forming a lower end of the tip and an outer surface which extends from the lower end around the tip axis, the base of the tip being shaped to allow insertion of said base into the housing of the base through the mounting opening, the housing being adapted to receive the base of the nozzle coaxially. The base comprises a stop member for a device for locking the base of the end piece in the receptacle of the base, the stop member being intended to cooperate with a locking member for the locking device mounted movably on the base, the stop member having a stop surface arranged to interfere with a stop surface of the locking member in a locking position of the locking member and not to interfere with the stop surface of the locking member in a retracted position of the locking member, the stop member being constituted by a recess formed on the outer surface of the base of the end piece at a distance from the lower end, the recess having transverse surfaces perpendicular to the nozzle axis opposite one another, the transverse surface oriented in a direction opposite to the lower end forming the abutment surface.

The tip may have a hollow and deformable body with shape memory, that is to say deformable while having a determined shape in the absence of external stress, and at least one passage between an interior space of the body and a environment outside the body.

The base and the body of the nozzle can be made in one piece.

• mettre l'organe de verrouillage dans la position escamotée pour pouvoir déplacer l'embout par rapport à l'embase,
• monter l'embout sur l'embase en insérant la base de l'embout dans le logement de l'embase au travers de l'ouverture de montage par la face avant de l'embase,
• mettre l'organe de verrouillage dans la position de verrouillage pour retenir la base de l'embout dans le logement de l'embase, le corps de l'embout s'étendant depuis la face avant de l'embase.

According to a third aspect, the invention provides a method of using a childcare article as defined above, providing for the steps consisting in:

• put the locking member in the retracted position to be able to move the endpiece relative to the base,
• mount the nozzle on the base by inserting the base of the nozzle in the housing of the base through the mounting opening from the front of the base,
• put the locking member in the locking position to retain the base of the end piece in the housing of the base, the body of the end piece extending from the front face of the base.

• la figure 1 est une représentation en perspective d'une face avant d'un article de puériculture selon un premier mode de réalisation de l'invention, l'article de puériculture se présentant sous la forme d'une tétine comprenant une embase et un embout monté de manière amovible sur l'embase,
• la figure 2 est une représentation en perspective d'une face arrière de l'article de puériculture de la figure 1,
• la figure 3 est une représentation en éclaté selon une première orientation de l'article de puériculture de la figure 1, illustrant un dispositif de verrouillage d'une base de l'embout dans un logement de l'embase,
• la figure 4 est une représentation en éclaté selon une deuxième orientation, opposée à la première orientation, de l'article de puériculture de la figure 1,
• la figure 5 est une représentation partielle en vue de dessus de l'article de puériculture de la figure 1, illustrant un organe d'actionnement et un organe de rappel élastique du dispositif de verrouillage,
• la figure 6 est une représentation partielle en vue de dessus de l'article de puériculture de la figure 1, illustrant un organe de verrouillage en position escamotée et déplaçable vers une position de verrouillage par l'intermédiaire de l'organe d'actionnement,
• la figure 7 est une représentation partielle en vue de dessus de l'article de puériculture de la figure 1, illustrant l'organe de verrouillage en position de verrouillage,
• la figure 8 est une représentation en coupe selon l'orientation référencée VIII-VIII sur la figure 1 de l'article de puériculture de la figure 1, l'organe de verrouillage étant en position de verrouillage engagé dans un évidement traversant la base de l'embout avec une surface d'arrêt en regard d'une surface de butée de l'évidement, un bord arrière de l'organe de verrouillage étant retenu dans un compartiment d'un côté de la base de l'embout et un bord avant ou bord libre de l'organe de verrouillage étant retenu dans une encoche de retenue de l'autre côté de la base de l'embout,
• la figure 9 est une représentation en éclaté d'une face avant d'un article de puériculture selon un deuxième mode de réalisation de l'invention,
• la figure 10 est une représentation en éclaté d'une face arrière de l'article de puériculture de la figure 9,
• la figure 11 est une représentation en coupe d'un noyau de l'embout de l'article de puériculture de la figure 9,
• la figure 12 est une représentation partielle en vue de dessus de l'article de puériculture de la figure 9, illustrant deux organes de verrouillage en position escamotée et déplaçable vers une position de verrouillage par l'intermédiaire de l'organe d'actionnement,
• la figure 13 est une représentation partielle en vue de dessus de l'article de puériculture de la figure 9, illustrant les organes de verrouillage en position de verrouillage,
• la figure 14 est une représentation en coupe selon l'orientation référencée XIV-XIV sur la figure 13 de l'article de puériculture de la figure 1, les organes de verrouillage en position de verrouillage enserrant la base de l'embout, des rebords de verrouillage des organes de verrouillage étant engagés dans un évidement périphérique ménagé sur la surface extérieure de la base de l'embout.

Other objects and advantages of the invention will appear on reading the following description of particular embodiments of the invention given by way of non-limiting example, the description being given with reference to the appended drawings in which:

• the figure 1 is a perspective representation of a front face of a childcare article according to a first embodiment of the invention, the childcare article in the form of a nipple comprising a base and an end piece removably mounted on the base,
• the figure 2 is a perspective representation of a rear side of the childcare article of the figure 1 ,
• the figure 3 is an exploded representation according to a first orientation of the childcare article of the figure 1 , illustrating a device for locking a base of the end piece in a housing of the base,
• the figure 4 is an exploded representation in a second orientation, opposite to the first orientation, of the childcare article of the figure 1 ,
• the figure 5 is a partial view from above of the childcare article of the figure 1 , illustrating an actuating member and an elastic return member of the locking device,
• the figure 6 is a partial view from above of the childcare article of the figure 1 , illustrating a locking member in the retracted position and movable to a locking position by means of the actuating member,
• the figure 7 is a partial view from above of the childcare article of the figure 1 , illustrating the locking member in the locking position,
• the figure 8 is a sectional representation according to the orientation referenced VIII-VIII on the figure 1 of the childcare article of the figure 1 , the locking member being in the locking position engaged in a recess crossing the base of the end piece with a stop surface opposite a stop surface of the recess, a rear edge of the locking member being retained in a compartment on one side of the base of the nozzle and a front edge or free edge of the locking member being retained in a retaining notch on the other side of the base of the nozzle,
• the figure 9 is an exploded representation of a front face of a childcare article according to a second embodiment of the invention,
• the figure 10 is an exploded view of a rear side of the childcare article from the figure 9 ,
• the figure 11 is a sectional representation of a nucleus of the tip of the childcare article of the figure 9 ,
• the figure 12 is a partial view from above of the childcare article of the figure 9 , illustrating two locking members in the retracted position and movable to a locking position by means of the actuating member,
• the figure 13 is a partial view from above of the childcare article of the figure 9 , illustrating the locking members in the locking position,
• the figure 14 is a sectional representation according to the orientation referenced XIV-XIV on the figure 13 of the childcare article of the figure 1 , the locking members in the locking position enclosing the base of the end piece, the locking edges of the locking members being engaged in a peripheral recess formed on the external surface of the base of the end piece.

In the figures, the same references designate identical or analogous elements.

The Figures 1 and 2 represent a childcare article intended to be brought to the mouth by a child. In the embodiment shown, without being limited thereto, the childcare article is a nipple 1 comprising, on the one hand, a base 2 provided with a flange 30 and, on the other hand, an end piece 35, also called breast shield, provided with a body 36 extending from a front face 2a of the base 2 and intended to be placed in the mouth of the child. On a rear face 2b opposite to the front face 2a, the base 2 includes an actuating orifice 11 in which is arranged an actuating button 56 shaped to be able to cooperate with an actuating key manipulated by a user.

On the figures 3 and 4 , the base 2 comprises a base 3, the collar 30 secured to the base 3 and a cover 25. The base 3, the collar 30 and the cover 25 can be produced in any suitable manner, for example by molding plastic.

The cylindrical base 3, for example of circular section, along a central axis A has opposite front 3a and rear 3b surfaces and a lateral surface 3c between the front 3a and rear 3b surfaces.

The base 3 internally comprises a housing 4 which extends from the front surface 3a to a bottom 5 and which has an internal surface around a housing axis B. In the embodiment shown, the housing 4 has a oblong section with first 4a and second 4b opposite side surfaces, parallel and connected to each other by rounded connecting surfaces. The interior surface of the housing 4 has a singularity produced, in the embodiment shown, in the form of a bead 6 extending radially towards the housing axis B from a central portion of the second lateral surface 4b. The bead 6 extends over a whole height of the housing 4 measured along the housing axis B and comprises on one half located on the side of the front surface 3a of the base 3 a flat 7, parallel to the first lateral surface 4a. As a variant, any other form of the housing 4 and any other arrangement of the singularity could be provided, in particular an arrangement of the singularity on the first lateral surface 4a of the housing 4.

The base 3 furthermore internally comprises a compartment 10 arranged adjacent to the first lateral surface 4a of the housing 4. The compartment 10 extends from the front surface 3a of the base to a bottom in which the orifice d is formed. actuation 11. The compartment 10 has a cylindrical inner surface along a compartment axis C. In particular, the compartment 10 comprises a lower portion 12 arranged in the vicinity of the bottom and whose section is circular. The lower portion 12 of the compartment 10 has a peripheral shoulder 13 oriented in a direction opposite to the bottom and defining an inner surface of smaller section in the vicinity of the bottom and an inner surface of larger section at a distance from the bottom. On the inner surface of larger section, located above the shoulder 13, the lower portion 12 of the compartment 10 has a stop 14 which extends radially towards the axis of compartment C. The stop 14 is, for example , arranged on the same side as one of the rounded connection surfaces of the housing 4. The compartment 10 also includes an upper portion 15 open on the front surface 3a of the base 3. The upper portion 15 of the compartment 10 has a square section and opens out in the first lateral surface 4a of the housing 4 by a locking opening 16 extending over the assembly on one of the sides. The change in section between the lower 12 and upper 15 portions of compartment 10 defines, at an interface between these lower 12 and upper portions 15, a guide surface 17 perpendicular to the axis of compartment C and to the axis of housing B The guide surface 17 is, in particular, distributed into four elementary guide surfaces at each of the corners of the interface between the lower 12 and upper 15 portions.

The base 3 also includes internally a recess 20 arranged adjacent to a portion of the interior surface of the compartment 10 disposed opposite the portion of the interior surface of the compartment 10 on which the stop 14 is formed. The recess 20 has a passage towards the compartment 10, which passage is partially closed off by guide walls 21 extending towards each other from longitudinal edges delimiting the passage. A stud 22 with an axis parallel to the axis of compartment C is disposed substantially centrally in the recess 20.

The cover 25 is adapted to be secured, preferably reversibly, so as to cover the front surface 3a of the base 3. In the embodiment shown, it is in the form of a circular contour plate of identical diameter to that of the base 3. The cover 25 has a mounting opening 26 delimited by an inner edge whose contour is identical to that of the inner surface of the housing 4. In particular, the inner edge has an oblong section with first 26a and second 26b opposite side surfaces, parallel and connected to each other by rounded connecting surfaces. The first 26a and second 26b lateral surfaces of the inner edge of the mounting opening 26 are provided to be aligned respectively with the first 4a and second 4b lateral surfaces of the inner surface of the housing 4. Similarly, the rounded connecting surfaces of the inner edge of the mounting opening 26 are provided to be aligned with the rounded connecting surfaces of the inner surface of the housing 4. A projection 27 extending radially towards the housing axis B is also provided on a central portion of the second lateral surface 26b of the inner edge of the mounting opening 26 to be placed in correspondence with the bead 6 above the flat part 7. The flat part 7 then defines, between a lower portion of the bead 6, in the vicinity of the bottom of the housing 4 and the projection 27 of the mounting opening 26, a retaining notch formed in the second lateral surface 4b of the housing 4 facing the opening locking collar 16 of the upper portion 15 of the compartment 10.

The flange 30 is secured to the base 3, if necessary rigidly, for example in the vicinity of the front surface 3a and so as to be flush with a front surface of the cover 25.

The tip 35 extends along a tip axis D and has a base 40 from which extends the body 36. In the embodiment shown, without being limited thereto, the tip 35 is made in one made of a material suitable for being put into the mouth of a child, and in particular rubber or silicone. In the case of a teat 1, the end piece 35 has a hollow and deformable body 36 with shape memory, that is to say deformable while having a determined shape in the absence of external stress. The end piece 35 also has one or more passages 37 between an interior space 38 of the body 36 and an environment external to the body 36, in particular so as to be able to fill the interior space 38 of air. For example, a passage 37 is visible on the figure 8 between the body 36 and the base 40.

The base 40 of the end piece 35 has a lower end 41 forming a lower end of the end piece 35 and an outer surface which extends from the lower end 41 around the end piece axis D. The base 40 of the end piece 35 and the housing 4 of the base 2, including the mounting opening 26, are shaped to allow insertion of the base 40 of the end piece 35 in the housing 4 of the base 2 through the mounting opening 26 through the front face 2a of the base 2 and the reception of the base 40 of the end piece 35 coaxially in the housing 4. The external surface of the base 40 of the end piece 35, the internal surface of the housing 4 and the inner edge of the mounting opening 26 then have a complementary shape. In particular, the outer surface of the base 40 of the nozzle 35 is cylindrical around the axis of the nozzle D and has an oblong section with first 40a and second 40b opposite side surfaces, parallel and connected to each other. other by rounded connecting surfaces. The first 40a and second 40b lateral surfaces of the base 40 of the end piece 35 are provided to be placed respectively opposite the first 4a and second 4b lateral surfaces of the housing 4. Likewise, the rounded connecting surfaces of the base 40 of the end piece 35 is provided to be placed opposite the rounded connection surfaces of the housing 4. The base 40 of the end piece 35 has a singularity complementary to the singularity of the housing 4. In the embodiment shown, the complementary singularity is has the form of a recess 42 extending radially towards the tip axis D from a central portion of the second lateral surface 40b of the base 40 of the tip 35. The recess 42 of the base 40 of the end piece 35 is adapted to cooperate with the bead 6 of the housing 4 and the projection 27 of the mounting opening 26 of the base 2 to form a polarizing device allowing mounting of the base 40 of the end piece 35 in the housing 4 of the base 2 with the first respective side surfaces 4a, 40a facing each other and the second respective side surfaces 4b, 40b facing each other, and preventing any other mounting.

Alternatively, an arrangement of the complementary singularity on the first lateral surface 40a of the base 40 to cooperate with the singularity on the first lateral surface 4a of the housing 4 could be provided. More generally, the base 40 of the end piece 35 could have any other shape complementary to that of the housing 4 and the mounting opening 26, the lower end 41 of the base 40 having a section transverse to the tip axis D of dimensions less than or equal to the dimensions of the rest of the outer surface of the base 40.

A recess 45 is formed in the base 40 of the end piece 35. The recess 45 extends along a recess axis E perpendicular to the end axis D, at a distance from the lower end 41. In particular , the recess 45 is arranged to be aligned with the locking opening 16 of the upper portion 15 of the compartment 10 and the retaining notch 7 when the base 40 of the nozzle 35 is received in the housing 4 of the base 2. The recess 45, of rectangular cross section, is traversing, opening the first 40a and second 40b lateral surfaces of the exterior surface of the base 40 of the end piece 35. The recess 45 has two transverse surfaces perpendicular to the tip axis D, facing one another and one of which 45a is oriented in a direction opposite to the lower end 41.

On the figures 3 and 4 , the teat 1 also comprises an actuating member 50. The actuating member 50 comprises a cylindrical central portion along a pivot axis F and having opposite transverse surfaces 50a and rear 50b and a lateral surface 50c between the surfaces transverse front 50a and rear 50b. The central portion comprises, in flush with the front transverse surface 50a, an arc 51 projecting radially over one half of the lateral surface 50c. The arc 51 has two diametrically opposite ends defining two radial shoulders 52. On the front transverse surface 50a, the actuating member 50 comprises a finger 53 extending parallel to the pivot axis F near an edge of the arc 51, equidistant from the two radial shoulders 52. On a part of the front transverse surface 50a diametrically opposite to that on which the finger 53 extends, the actuating member 50 comprises a support element in the form a skirt 54 extending along the sliding axis F. The skirt 54 has a free edge opposite the front transverse surface 50a of the central portion. The free edge has a support surface 55 arranged in a substantially central manner and having a maximum spacing with the front transverse surface 50a of the central portion. On either side of the support surface 55, the free edge gradually decreases towards the front transverse surface 50a of the central portion. On the rear transverse surface 50b, the actuating member carries the actuating button 56.

As shown on figures 3 , 4 and 5 , the actuating member 50 is placed coaxially in the lower portion 12 of the compartment 10 of the base 2 with the rear transverse surface 50b of the central portion towards the bottom of the lower portion 12 of the compartment 10 and the arch 51 of the central portion resting on the shoulder 13 of the lower portion 12 of the compartment 10. The actuation button 56 of the actuating member 50 is placed in the orifice 11 of the rear face 2b of the base 2. The spacing of the support surface 55 of the skirt 54 of the actuating member 50 is, moreover, designed so that the support surface 55 is coplanar with the guide surface 17 of the compartment 10.

The actuating member 50 can then pivot about its pivot axis F parallel to the housing axis B between first and second angular positions defined respectively by the contact of one of the radial shoulders 52 with the stop 14 of the compartment 12. In the embodiment shown, the first and second angular positions are separated by 180 °. In particular, the first angular position is shown on the figure 5 . In this first angular position, the arc 51 and the finger 53 of the actuating member 50 are spaced from the housing 4 of the base 2, and the skirt 54 is near the housing 4 of the base 2. The second angular position is shown on the figure 7 . In this second angular position, the arc 51 and the finger 53 of the actuating member 50 are close to the housing 4 of the base 2 and the skirt 54 is moved away from the housing 4 of the base 2.

In order to be able to maintain the actuating member in a stable manner in either of the first and second angular positions, an elastic return member is provided. In the embodiment shown, the elastic return member is in the form of a spring 60 comprising a winding 61 fitted on the stud 22 of the recess 20 of the base 2, and two strands 62 extending through of the passage between the recess 20 and the compartment 10 to come on either side of the finger 53 of the actuating member 50.

On the figures 3 and 4 , the teat 1 also comprises a locking member 65. In the embodiment shown, the locking member 65 is in the form of a square contour wafer and rectangular section. As will appear from the following description, the contour of the locking member 65 has dimensions corresponding substantially to those of the upper portion 15 of the compartment 10 and the section of the locking member 65 has dimensions corresponding substantially to those of the recess 45 of the base 40 of the end piece 35. In this regard, the plate of the locking member 65 is shown with sharp angles. These angles could nevertheless be shaped differently, for example bevelled, rounded or otherwise, to facilitate the introduction of the locking member 65 into the recess 45. The locking member 65 has front transverse edges 65a and rear 65b spaced apart from one the other along a longitudinal axis L, and lateral edges 65c spaced from each other along a transverse axis T and connecting the front transverse edges 65a and rear 65b. The locking member 65 also has two opposite upper 65d and lower 65th surfaces extending in planes parallel to the longitudinal axis L and to the transverse axis T. The locking member 65 has a groove 66 which s extends from one of the lateral edges 65c, parallel to the rear transverse edge 65b, near the latter, to a bottom arranged substantially in the middle of the locking member 65.

The locking member 65 is mounted on the base 2. As shown in the figures 3 , 4 and 6 , the locking member 65 can be placed in a retracted position in the upper portion 15 of the compartment 10. The front edge 65a, or free edge, of the locking member 65 extends in the locking opening 16 of the compartment 10. The locking member 65 rests on the guide surface 17 of the compartment 10 and is in contact with the guide walls 21 between the upper portion 15 of the compartment 10 and the recess 20 of the base 2. The member locking 65 covers the actuating member 50 in the first angular position. The lower surface 65e of the locking member 65 comes into contact with the support surface 55 of the skirt 54. The finger 53 of the actuating member 50 is placed in the bottom of the groove 66.

As shown on Figures 7 and 8 when the user moves the actuating member 50 in rotation from the first angular position to the second angular position around the pivot axis F, part of a lateral surface of the finger 53 in contact with a transverse surface before the groove 66 forms an actuating surface which exerts a thrust on the locking member 65. The locking member 65 can then slide in a transverse plane relative to the housing axis B, along an axis of sliding coaxial to the longitudinal axis L of the locking member 65, towards the housing 4. The finger 53 slides in the groove 66 until the actuating member 50 reaches the second angular position. In this second angular position, the locking member 65 extends in the housing 4 with the front edge 65a placed in the retaining notch 7 of the base 2, the rear edge 65b being retained in the compartment 10 of the '' base 2.

Conversely, when the user moves the actuating member 50 in rotation from the second angular position to the first angular position around the pivot axis F, another part of the lateral surface of the finger 53 comes into contact with a rear transverse surface of the groove 66 to form the actuating surface which brings the locking member 65 back to the retracted position.

The locking member 65 is selectively biased elastically towards the retracted position and the locking position by means of the bias exerted on the actuating member 50 by the spring 60.

In the retracted position, the locking member 65 and its stop surface 65e are spaced from the housing 4 and the mounting opening 26 of the base 2. It then allows insertion of the base 40 of the end piece 35 in the housing 4 of the base 2 through the mounting opening 26 and the reception of the base 40 of the end piece 35 coaxially in the housing 4.

On the figure 8 , when the locking member 65 is in the locking position, the lower surface 65e of the locking member 65 extends transversely relative to the housing axis B, in the housing 4, and interferes with the surface transverse 45a oriented in a direction opposite to the lower end 41 of the base 40 of the nozzle 35. The base 40 of the nozzle 35 is thus retained in the housing 4 of the base 2. The rear edge 65b of the the locking member 65 is retained in the compartment 10 on one side of the base 40 of the end piece 35 and the front edge 65a of the locking member 65 is retained in the retaining notch 7 on the other side of the base 40 of the end piece 35. The locking member 65 then extends through the base 40 of the end piece 35, in the recess 45, while being held on either side of the base 40 by the compartment 10 and the retaining notch 7, thus ensuring security with respect to the risk of the tip 35 being torn off.

The lower surface 65e of the locking member 65 forms a stop surface and the recess 45 in the base 40 of the end piece 35 forms a stop member whose transverse surface 45a oriented in a direction opposite to the end lower 41 forms a stop surface. In the retracted position, the locking member 65 and its stop surface 65e do not interfere with the recess 45 and its abutment surface 45a in order to be able to move the end piece 35 relative to the base 2 and in particular remove end piece 35.

The locking member 65, the actuating member 50 and the recess 45 belong to a device for locking the base 40 of the end piece 35 in the housing 4 of the base 2 allowing the base 40 of the end piece 35 to be secured removably to the base 2.

• mettre l'organe de verrouillage 65 dans la position escamotée pour pouvoir déplacer l'embout 35 par rapport à l'embase 2,
• le cas échéant, de retirer l'embout 35,
• monter le nouvel embout 35 sur l'embase 2 en insérant la base 40 du nouvel embout 35 dans le logement 4 de l'embase 2 au travers de l'ouverture de montage 26 par la face avant 2a de l'embase 2,
• mettre l'organe de verrouillage 65 dans la position de verrouillage pour retenir la base 40 du nouvel embout 35 dans le logement 4 de l'embase 2.

The tip 35 of the nipple 1 can thus be replaced in particular by a new identical tip or having a different function. The nipple 1 can comprise a plurality of end pieces 35. It is then possible to provide a range of end pieces, which range comprises several end pieces 35 including possibly at least two different end pieces from one another. It suffices to do this, as appears from the above:

• put the locking member 65 in the retracted position in order to be able to move the end piece 35 relative to the base 2,
• if necessary, remove the end piece 35,
• mount the new end piece 35 on the base 2 by inserting the base 40 of the new end piece 35 in the housing 4 of the base 2 through the mounting opening 26 through the front face 2a of the base 2,
• put the locking member 65 in the locking position to retain the base 40 of the new end piece 35 in the housing 4 of the base 2.

The invention described in relation to a locking member 65 mounted on the base 2 and a stop member 45 provided on the base 40 of the nozzle 35 is not limited to this embodiment. In particular, as a variant, the locking member, such as an elastic tongue provided with a stop surface, could be mounted on the base 40 of the end piece 35 to cooperate with a stop member, such as an inner surface of the housing 4 bordering the mounting opening 26, provided on the base 2.

The Figures 9 to 14 represent a childcare article according to a second embodiment. As for the first embodiment, the childcare article is a pacifier 1 'comprising a base 2' and a nozzle 35 'whose body 36' extends from a front face 2a 'of the base 2' to be able be placed in the child's mouth.

The base 2 'has a base 3' and a cover 25 'carrying a flange 30'.

The base 3 'cylindrical, for example of square section, along a central axis A' internally comprises a housing 4 'which extends along a housing axis B', coaxial with the central axis A ', from a front surface 3a 'up to a bottom 5'. In the embodiment shown, the housing 4 'has a lower portion 12' arranged in the vicinity of the bottom 5 'and whose section is circular, and an upper portion 15' open on the front surface 3a 'of the base 3' and whose the section is square. The change in section between the lower 12 'and upper 15' portions of the housing 4 'defines, at an interface between these lower 12 'and upper 15' portions, a guide surface 17 'perpendicular to the central axis A'. In the bottom 5 'of the housing 4', a through actuating orifice 11 'is formed centrally. The bottom 5 'of the housing 4' also includes a reserve 20 'in the form of a blind groove, surrounding the actuating orifice 11' concentrically and opening into the lower portion 12 'of the housing 4'.

The cover 25 'is adapted to cover the front surface 3a' of the base 3 '. In the embodiment shown, it has a front 28 'in the form of a generally flat plate of oblong outline and a rounded back 29' in which a space 31 'is formed along a space axis G'. The space 31 'is shaped to receive the base 3' coaxially. The front 28 'of the cover 25' has a mounting opening 26 'which extends along an opening axis H' coaxial with the space axis G ', and which opens into the space 31'. The mounting opening 26 'is delimited by an edge, for example circular, provided with one or more singularities in the form of notches 32' equally spaced extending radially relative to the opening axis H '.

The tip 35 'extends along a tip axis D' and has a base 40 'from which extends the body 36'. In the embodiment shown, without being limited thereto, the base 40 ′ and the body 36 ′ of the end piece 35 ′ are made in one piece from a material suitable for being placed in the mouth of a child, and especially rubber or silicone. The body 36 'and the base 40' are hollow and deformable with shape memory, that is to say deformable while having a determined shape in the absence of external stress.

The base 40 'of the nozzle 35' has a lower end 41 'forming a lower end of the nozzle 35' and an outer surface which extends from the lower end 41 'around the axis of the nozzle D . The base 40 'of the end piece 35' and the mounting opening 26 'of the base 2' are shaped to allow insertion of the base 40 'of the end piece 35' in the housing 4 'of the base 2 'through the mounting opening 26' through the front face 2a 'of the base 2'. The outer surface of the base 40 'of the end piece 35' and the edge of the mounting opening 26 'then have a complementary shape. In particular, the outer surface of the base 40 'of the end piece 35' is cylindrical around the end piece axis D 'and has a circular section. The base 40 'of the end piece 35' has one or more singularities complementary to the singularities of the mounting opening 26 '. In the embodiment shown, the complementary features are in the form of evenly spaced projections 43 'extending radially from the outer surface of the base 40'. The protrusions 43 'of the base 40' of the end piece 35 'cooperate with the notches 32' of the mounting opening 26 'to ensure the positioning of the end piece 35' relative to the base 2 'in an orientation desired.

A recess 45 'is formed in the base 40' of the end piece 35 'at a distance from the lower end 41'. The recess 45 'extends peripherally around the tip axis D' on the outer surface of the base 40 'of the tip 35'. The recess 45 'has a bottom 45b' spaced from the outer surface of the base 40 'of the tip 35' towards the tip axis D '. In particular, the recess 45 'is arranged to be aligned with the upper portion 15' of the housing 4 'when the base 40' of the end piece 35 'is received in the housing 4' of the base 2 '. The recess 45 'has two transverse surfaces perpendicular to the tip axis D', facing one another and one of which 45a 'is oriented in a direction opposite to the lower end 41'.

The end piece 35 ′ also comprises a core 46 ′, generally cylindrical of circular section, made of a material having an overall rigidity. The core 46 'is fitted into the base 40'. As shown in the figure 11 , the core 46 'internally comprises a blocking element in the form of a first cylindrical blocking surface along a blocking axis I1' between a first end 46a ', by which the core 46' is inserted in the base 40 ', and a second end 46b 'called fitting. The first blocking surface is then provided with two grooves 47 'arranged symmetrically with respect to the blocking axis I1'. Each groove 47 'has an axial portion 47a' which extends from the fitting end 46b ', and a circumferential portion 47b' adjoining the axial portion 47a 'at a distance from the fitting end 46b'.

The teat 1 'also includes an actuating member 50'. The actuating member 50 'comprises a plate 51', for example of elliptical contour, extending transversely with respect to a pivot axis F '. On a front transverse surface 50a ′, the actuating member 50 ′ comprises two fingers 53 ′ extending parallel to the pivot axis F ′ at the ends of the major axis of the elliptical contour.

The actuating member 50 'also includes a blocking element complementary to the blocking element of the base 40' of the end piece 35 '. The blocking element of the actuating member 50 'comprises a second blocking surface cylindrical along a blocking axis I2 'and adapted to be fitted into the first mounting surface. In particular, the second blocking surface is formed on a stud 57 'which extends from the front transverse surface 50a' along the blocking axis I2 'coaxial with the pivot axis F' up to one end of fitting 57a '. The second blocking surface is provided with two radial lugs 58 'arranged to slide respectively in the axial portions 47a' of the grooves 47 'when the first and second blocking surfaces are fitted one on the other by the fitting ends. 46b ', 57a', and to be retained in the circumferential portions 47b 'of the grooves 47' by relative rotation of the first and second locking surfaces along the locking axes I1 ', I2'.

Alternatively, the first blocking surface could include one or more than two grooves 47 'and the second blocking surface could include one or more than two lugs 58'. Furthermore, the first blocking surface could be carried by the actuating member 50 'and the second blocking surface could be carried by the base 40' of the end piece 35 '.

On the rear transverse surface 50b ′, the actuating member 50 ′ carries an actuating button 56 ′ extending along the pivot axis F ′.

The actuator 50 'is placed coaxially in the lower portion 12' of the housing 4 'of the base 2' with the rear transverse surface 50b 'towards the bottom 5' of the housing 4 '. The actuating button 56 'of the actuating member 50' is placed in the orifice 11 'of the rear face 2b' of the base 2 '. An elastic return member, in the form of a helical spring 59 'is placed in the reserve 20' of the base 3 'to urge the actuating member 50' towards the cover 25 '.

The actuating member 50 'can then be angularly displaced around its pivot axis F' coaxial with the housing axis B 'between first and second positions. In the first position, the pins 58 'can slide in the axial portions 47a' of the grooves 47 'without interfering so as to allow the nozzle 35' to be displaced relative to the actuating member 50 '. In the second position, the pins 58 'are retained in the circumferential portions 47b' of the grooves 47 'so as to retain the end piece 35' on the actuating member 50 '.

The teat 1 'also includes two locking members 65'. In the embodiment shown, each locking member 65 'is in the form of a plate adapted to be received in the upper portion 15' of the housing 4 '. Each locking member 65 'has opposite upper surfaces 65d' and lower 65e 'and a peripheral edge 65c' extending between the upper surfaces 65d 'and lower 65e'. The peripheral edge 65c 'has two opposite longitudinal edges and two opposite side edges. One of the longitudinal edges forms a locking edge 67 'having a notch 68' of shape substantially complementary to the bottom 45b 'of the recess 45' of the base 40 'of the end piece 35'. Each locking member 65 'also has a groove 66' which extends along the longitudinal edge opposite the locking edge 67 ', in the vicinity of one of the side edges. The side edges respectively carry pins 69 'arranged on either side of the notch 68'.

On the figure 12 , the locking members 65 ′ can be placed in a retracted position in the upper portion 15 ′ of the housing 4 ′ with the locking edges 67 ′ free facing each other and separated from one another. The locking members 65 'rest on the guide surface 17' of the housing 4 'while covering the actuating member 50' in the first position. The fingers 53 'of the actuating member 50' are placed in the grooves 66 '.

On the figure 13 , when the user moves the actuating member 50 'in rotation from the first position to the second position around the pivot axis F', an actuating surface of each of the fingers 53 'in contact with the groove 66 'of one of the locking members 65' exerts a thrust on the locking member 65 '. The locking members 65 'can then slide along a sliding axis in a plane transverse with respect to the housing axis B' until the locking position in which the locking edges 67 'are brought together. 'other.

Conversely, when the user moves the actuating member 50 'in rotation from the second position to the first position around the pivot axis F', an actuating surface of each of the fingers 53 'in contact with the groove 66 'of one of the locking members 65' brings the locking member 65 'back to the retracted position.

The locking members 65 'of the teat 1' according to the second embodiment function as a jaw enclosing the base 40 'in the locking position of the locking members 65', the locking edges 67 'being shaped to delimit a substantially complementary opening of the bottom 45b 'of the recess 45'.

The locking members 65 'can be resiliently biased towards the locking position by means of elastic members 60' stretched between the pins 69 'arranged opposite.

In the retracted position, the locking members 65 'and their stop surfaces 65e' are spaced from the mounting opening 26 'of the base 2'. They then allow an insertion of the base 40 'of the end piece 35' in the housing 4 'of the base 2' through the mounting opening 26 'and the reception of the base 40' of the end piece 35 'coaxially in the housing 4'.

When the locking members 65 'are in the locking position, the lower surfaces 65e' of the locking members 65 'extend transversely relative to the housing axis B' and interfere with the transverse surface 45a 'oriented in a opposite direction to the lower end 41 'of the base 40' of the nozzle 35 '. The base 40 'of the end piece 35' is thus retained in the housing 4 'of the base 2'. The locking edges 67 ′ of the locking members 65 ′ then extend into the recess 45 ′ thus ensuring security with respect to the risk of the tip 35 ′ being torn off.

The lower surfaces 65e ′ of the locking members 65 ′ form stop surfaces and the recess 45 ′ of the base 40 ′ of the end piece 35 ′ forms a stop member whose transverse surface 45a ′ oriented in an opposite direction at the lower end 41 'forms a stop surface.

Claims (15)

1. Child care item (1; 1') intended to be brought to the mouth by a child, the child care item (1; 1') comprising:

   - a seat (2; 2') having a front face (2a; 2a') and a rear face (2b; 2b') opposite one another, the seat (2; 2') including a recess (4; 4') internal thereto,

   - at least one tip (35; 35') including a base (40; 40') and a body (36; 36') intended to be placed in the mouth of the child, the tip (35; 35') being mounted in a removable manner on the seat (2; 2'), the base (40; 40') being received inside the recess (4; 4') of the seat (2; 2') and the body (36; 36') of the tip (35; 35') extending from the front face (2a; 2a') of the seat (2; 2') when the tip (35; 35') is mounted on the seat (2; 2'), and

   - a device for locking the base (40; 40') of the tip (35; 35') in the recess (4; 4') of the seat (2; 2'), the locking device including at least one locking member (65; 65') having a stop surface (65e; 65e') and mounted on one of the elements selected from the group consisting of the base (40; 40') of the tip (35; 35'), and the seat (2; 2'), and at least one abutment member (45; 45') having an abutment surface (45a; 45a') and provided on the other element selected from the group consisting of the base (40; 40') of the tip (35; 35'), and the seat (2; 2') in order to engage with the locking member (65; 65'), the locking member (65; 65') being capable of being displaced relative to the abutment member (45; 45') between a locking position in which the stop surface (65e; 65e') interferes with the abutment surface (45a; 45a') to retain the base (40; 40') of the tip (35; 35') inside the recess (4; 4') of the seat (2; 2'), and a retracted position in which the stop surface (65e; 65e') does not interfere with the abutment surface (45a; 45a') in order to be able to displace the tip (35; 35') relative to the seat (2; 2'),

   the child care item (1; 1') being characterised in that the recess (4; 4') opens out onto the front face (2a; 2a') of the seat (2; 2') via an assembly opening (26; 26'), the assembly opening (26; 26') and the base (40; 40') of the tip (35; 35') being shaped so as to allow insertion of said base (40; 40') into the recess (4; 4') of the seat (2; 2') through said assembly opening (26; 26') via the front face (2a; 2a') of the seat (2; 2').
2. Child care item (1; 1') according to claim 1, wherein the base (40; 40') of the tip (35; 35') and the assembly opening (26; 26') have complementing shapes.
3. Child care item (1; 1') according to any one of claims 1 and 2, wherein the abutment member (45; 45') is provided on the base (40; 40') of the tip (35; 35') and the locking member (65; 65') is mounted on the seat (2; 2').
4. Child care item (1; 1') according to claim 3, wherein the base (40; 40') of the tip (35; 35') has a lower end (41; 41') forming a lower end of the tip (35; 35') and an outer surface which extends from the lower end (41; 41') about a tip axis (D; D'), and the recess (4; 4') of the seat (2; 2') has an inner surface about a recess axis (B; B'), the recess (4; 4') being adapted to receive the base (40; 40') of the tip (35; 35') coaxially, wherein the abutment member is formed by a hollowing (45; 45') made in the outer surface of the base (40; 40') of the tip (35; 35') away from the lower end (41; 41'), the hollowing (45; 45') having transverse surfaces perpendicular to the tip axis (D; D') facing one another, the transverse surface (45a; 45a') oriented in a direction opposite the lower end (41; 41') forming the abutment surface, and
   wherein the locking member (65; 65') is suitable for extending at least partially inside the hollowing in the locking position, the locking member (65; 65') having a transverse surface (65e; 65e') relative to the recess axis (B; B') which is oriented in a direction opposite the assembly opening (26; 26') and which forms the stop surface.
5. Child care item (1) according to claim 4, wherein the lower surface of the recess (4) of the seat (2) has first (4a) and second (4b) side surfaces facing one another, and the seat (2) further includes, internal thereto, a compartment (10) opening out into the first side surface (4a) of the recess (4) via a locking opening (16), and a retaining notch (7) made in the second side surface (4b) of the recess (4) facing the locking opening (16),
   wherein the outer surface of the base (40) of the tip (35) has first (40a) and second (40b) side surfaces opposite one another and intended to be respectively placed such that they face the first (4a) and second (4b) side surfaces of the recess (4), the hollowing (45) extending along a hollowing axis (E) perpendicular to the tip axis (D) and being arranged such that it is aligned with the locking opening (16) of the compartment (10) and the retaining notch (7) when the base (40) of the tip (35) is received inside the recess (4) of the seat (2), the hollowing (45) being penetrating between the first (40a) and second (40b) side surfaces of the outer surface of the base (40) of the tip (35),
   wherein the locking member (65) has a free edge (65a), the locking member (65) being housed inside the compartment (10) in the retracted position and capable of being displaced in a transverse plane relative to the recess axis (B) towards the locking position in which the free edge (65a) of the locking member (65) is retained inside the retaining notch (7), the locking member (65) extending through the hollowing (45) in the locking position and when the tip (35) is mounted on the seat (2).
6. Child care item (1') according to claim 4, wherein the hollowing (45') extends in a peripheral manner about the tip axis (D') on the outer surface of the base (40') of the tip (35'), the hollowing (45') having a bottom (45b') away from the outer surface of the base (40') of the tip (35') towards the tip axis (D'),
   wherein at least two locking members (65') respectively have free locking flanges (67') that face one another, the locking flanges (67') being shaped so as to define an opening substantially complementing the bottom (45b') of the hollowing (45') in the locking position of the locking members (65'), the locking members (65') being capable of being displaced in a transverse plane relative to the recess axis (B') between the retracted position in which the locking flanges (67') are spaced apart from one another and the locking position in which the locking flanges (67') are brought closer to one another, the locking flanges (67') being placed inside the hollowing (45') in the locking position and when the tip (35') is mounted on the seat (2').
7. Child care item (1; 1') according to any one of claims 4 to 6, wherein the locking member (65; 65') is capable of undergoing translational displacement along a sliding axis perpendicular to the recess axis (B; B').
8. Child care item (1; 1') according to any one of claims 1 to 7, wherein the locking device further comprises an actuating member (50; 50') capable of being actuated by a user and of being displaced between a first position in which said actuating member (50; 50') places the locking member (65; 65') in the retracted position, and a second position in which said actuating member (50; 50') places the locking member (65; 65') in the locking position.
9. Child care item (1; 1') according to claim 8, wherein the actuating member (50; 50') is mounted on the seat (2; 2') such that it pivots about a pivot axis (F; F') parallel to the recess axis (B; B'), the actuating member (50; 50') including an actuating surface in contact with the locking member (65; 65') and arranged so as to displace the locking member (65; 65') between the locking position and the retracted position by rotation of the actuating member (50; 50') about the pivot axis (F; F').
10. Child care item (1; 1') according to claim 9 when dependent on claim 7, wherein the actuating member (50; 50') is placed under a lower surface (65e; 65e') of the locking member (65; 65') and includes a finger (53; 53') extending parallel to the pivot axis (F; F') while being offset relative to said pivot axis (F; F'), the finger (53; 53') bearing the actuating surface, and
    wherein the locking member (65; 65') includes a guideway (66; 66') in which the finger (53; 53') of the actuating member (50; 50') is placed, the guideway (66; 66') being arranged and shaped such that the finger (53; 53') slides inside the guideway (66; 66') when the actuating member (50; 50') is angularly displaced between the first position and the second position.
11. Child care item (1') according to any one of claims 8 to 10, wherein the actuating member (50') and the base (40') of the tip (35') respectively include complementary blocking elements, the blocking elements being adapted so as not to interfere with one another in the first position of the actuating member (50') in order to be able to displace the tip (35') relative to the actuating member (50'), and so as to interfere with one another in the second position of the actuating member (50') in order to retain the tip (35') on the actuating member (50').
12. Child care item (1) according to claim 11, wherein the blocking elements comprise first and second blocking surfaces, one whereof is made on the actuating member (50') and the other whereof is made on the base (40') of the tip (35'), the first and second blocking surfaces being cylindrical about respective blocking axes (I1', 12') and adapted to be fitted onto one another by respective fitting ends (46b', 57a'), the first blocking surface being provided with at least one groove (47') which has an axial portion (47a') which extends from the fitting end (46b') of said first blocking surface, and a circumferential portion (47b') adjoining the axial portion (47a') away from the fitting end (46b') of said first blocking surface, the second blocking surface being provided with at least one radial lug (58') arranged such that it slides in the axial portion (47a') of the groove (47') when the first and second blocking surfaces are fitted onto one another by the fitting ends (46b', 57a'), and such that it is retained in the circumferential portion (47b') of the groove (47') by relative rotation of the first and second blocking surfaces about the blocking axes (I1', 12').
13. Child care item (1; 1') according to claim 12, wherein the body (36') and the base (40') of the tip (35') are formed in one piece from a deformable shape memory material, the body (36') and the base (40') being hollow and the tip (35') comprising a core (46') fitted into the base (40'), the core (46') including one of the first and second blocking surfaces.
14. Tip (35; 35') specially adapted for a child care item (1; 1') according to any one of claims 1 to 13, the tip (35; 35') being intended to be mounted in a removable manner on a seat (2; 2') having a front face (2a; 2a') and a rear face (2b; 2b') opposite one another and including a recess (4; 4') internal thereto, the recess (4; 4') having an inner surface about a recess axis (B; B') and opening out onto the front face (2a; 2a') of the seat (2; 2') by an assembly opening (26; 26'),
    the tip (35; 35') including a base (40; 40') intended to be received in the recess (4; 4') of the seat (2; 2') and a body (36; 36') intended to extend from the front face (2a; 2a') of the seat (2; 2') and to be placed in the mouth of a child, the base (40; 40') of the tip (35; 35') having a lower end (41; 41') forming a lower end of the tip (35; 35') and an outer surface which extends from the lower end (41; 41') about a tip axis (D; D'), the base (40; 40') of the tip (35; 35') being shaped so as to allow said base (40; 40') to be inserted into the recess (4; 4') of the seat (2; 2') through the assembly opening (26; 26'), the recess (4; 4') being adapted to receive the base (40; 40') of the tip (35; 35') coaxially,
    wherein the base (40; 40') includes an abutment member (45; 45') of a locking device for locking the base (40; 40') of the tip (35; 35') inside the recess (4; 4') of the seat (2; 2'), the abutment member (45; 45') being intended to engage with a locking member (65; 65') of the locking device mounted such that it can be displaced on the seat (2; 2'), the abutment member (45; 45') having an abutment surface (45a; 45a') arranged so as to interfere with a stop surface (65e; 65e') of the locking member (65; 65') in a locking position of the locking member (65; 65') and so as not to interfere with the stop surface (65e; 65e') of the locking member (65; 65') in a retracted position of the locking member (65; 65), the abutment member being formed by a hollowing (45; 45') made in the outer surface of the base (40; 40') of the tip (35; 35') away from the lower end (41; 41'), the hollowing (45; 45') having transverse surfaces perpendicular to the tip axis (D; D') facing one another, the transverse surface (45a; 45a') oriented in a direction opposite the lower end (41; 41') forming the abutment surface.
15. Method for assembling a child care item (1; 1') according to any one of claims 1 to 13, providing for the steps consisting of:

    - placing the locking member (65; 65') in the retracted position in order to be able to displace the tip (35; 35') relative to the seat (2; 2'),

    - mounting the tip (35; 35') on the seat (2; 2') by inserting the base (40; 40') of the tip (35; 35') into the recess (4; 4') of the seat (2; 2') through the assembly opening (26; 26') via the front face (2a; 2a') of the seat (2; 2'),

    - placing the locking member (65; 65') in the locking position in order to retain the base (40; 40') of the tip (35; 35') inside the recess (4; 4') of the seat (2; 2'), the body (36; 36') of the tip (35; 35') extending from the front face (2a; 2a') of the seat (2; 2').

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