KR101594501B1 - Pacifier and combination structure thereof - Google Patents

Abstract

The present invention relates to a pacifier and a joining structure thereof. The present invention is to provide a pacifier formed to effectively provide a function for supporting a main body and a function for ventilating the inside of the pacifier. According to an aspect of the present invention, the pacifier includes: a first member which is made of a silicone material and includes a first base unit which is integrally formed in the shape of a flange to be extended; a second member which is made of a material harder than the material of the first member, has an extended unit with the size larger than the first base unit of the first member, has a second front side base unit capable of surface contact with the first base unit in the center of the front side of the extended unit, and has a second rear side base unit arranged on a side opposite to the second front side base unit; and a third member which has a third base unit in the shape of a flange capable of surface contact with the second rear side base unit and has a main body unit arranged on the rear side of the third base unit. The surface of the first base unit of the first member comes in contact with the surface of the second front side base unit of the second member. While the surface of the second rear side base unit of the second member comes in contact with the surface of the third base unit of the third member, the first member, the second member, and the third member are integrated to each other by over-molding of a silicone cover layer.

Description

Pacifier and combination structure < RTI ID = 0.0 >

The present invention relates to a nosepiece nipple and its coupling structure, wherein the nosepiece including a soft nipple and a hard body element supporting the nipple is integrally formed by overmolding the silicone material, The present invention relates to a nosepiece nipple configured to effectively provide a hard body supporting function and a nipple ventilating function, and a coupling structure thereof.

Even if the baby does not grow up yet, it is enough to relieve the psychological anxiety and to get satisfaction by sucking the nipple even if the baby does not get milk, and it is the soother nipple or the nipple nipple.

In general, the soot nipple is provided with a flange formed to have a larger area than the mouth of the infant so as not to be sucked into the infant's mouth. A ring is formed on the rear side of the flange so as to be held by hand, and a soft material Silicone), so that the nipples on the front of the baby are nipped by the mouth, thereby relieving nervousness naturally and obtaining psychological satisfaction.

However, the conventional general nipple nipple is generally composed of a combination of a flange injected with a rigid plastic material and a nipple injected with a soft material, and the flange made of a rigid plastic material is formed by combining a nipple with a mouth And it is disadvantageous in that it causes inconvenience when pressing the skin of a soft infant as the widest contact portion.

US Pat. No. US2009 / 0248074 (published on October 1, 2009) has proposed a structure that is manufactured by overmolding a soft silicone material on a flange portion. So that the nipple is contaminated by foreign matter or the like.

As another example of the prior art, Korean Patent Laid-open Publication No. 10-2015-0043151 (published on Apr. 22, 2015) proposed by the present inventors and the like has proposed that although the conventional problem that the inside of the nipple is exposed as the outside is improved, There was a limitation in that the structure became somewhat complicated.

Korean Patent Publication No. 10-2009-0018637 (published on Feb. 20, 2009) U.S. Published Patent Application No. US2009 / 0248074 (published on October 1, 2009) Korean Patent Publication No. 10-2015-0043151 (published on April 22, 2015)

It is an object of the present invention to overcome the above-mentioned problems in the prior art by providing a soot nipple including a soft nipple and a rigid body element for supporting the nipple by integrally forming the nipple through overmolding of a silicon material, The present invention provides a soot nipple and a coupling structure thereof that are configured to effectively provide a hard body supporting function and a ventilation function in a nipple while providing material characteristics.

According to an aspect of the present invention, there is provided a nipple device including: a first member formed of a silicone material and having a flange-shaped first base integrally extended on a rear side of a nipple; And a second front base portion which is formed of a harder material than the first member and has a size larger than that of the first base portion of the first member and has a surface contact with the first base portion, A second member provided at the center side and having a second rear base portion opposite to the second front base portion; And a third member having a flange-shaped third base portion that is in surface contact with the second rear base portion on the front side and a body portion on a rear side of the third base portion, Wherein the first base portion and the second front base portion of the second member are in surface contact and the second back surface base portion of the second member and the third base portion of the third member are in surface contact, A second member, and a third member are integrally joined through overmolding of the silicon cover layer.

Preferably, the first member includes a first engaging portion protruding from a rear center side of the first base portion and having a hollow portion communicating with the nipple portion formed in a hollow shape, Wherein the third member includes a third engaging portion inserted into the hollow portion of the first engaging portion at a center side of the third base portion, And a vent pipe for communicating the inside of the nipple part with the outside of the nipple part in a state where the third engaging part is inserted and coupled.

Preferably, the first engaging portion includes an intermediate portion extending from the first base portion to the rear side, and an extended coupling portion extending further from the intermediate portion toward the rear than the intermediate portion and extended further outward than the intermediate portion, And the coupling portion is engaged with the coupling portion by the extended coupling portion in a state where the coupling portion and the coupling portion are inserted and coupled.

Preferably, the extended coupling portion includes a front inclined surface located on the side adjacent to the intermediate portion and inclined downward toward the front side, and a rear inclined surface positioned on the opposite side of the front inclined surface and inclined downward toward the rear side, And the coupling hole includes a coupling sloped surface in surface contact with the front sloped surface.

Preferably, the vent pipe of the third member comprises an external vent hole formed in the main body part, and a vent duct communicating with the external vent hole and formed outside the third coupling part.

Preferably, at least one coupling protrusion is protruded from the second member on the side of the second rear base, and at least one coupling hole into which the coupling protrusion is inserted is formed in the third member .

Preferably, the first base portion of the first member and the second front surface base portion of the second member are in surface contact with the outer surface of the first engagement portion of the first member, and the second back surface base portion of the second member And a groove portion that is in surface contact with at least a part of the engaging projection of the second member is further formed in a state in which the third base portion of the third member is in surface contact.

Preferably, the silicon cover layer covers the front and rear surfaces of the extended portion of the second member and surrounds the outer periphery of the extended portion.

Preferably, the silicon cover layer is formed in a state in which the second front base portion and the second rear base portion are not directly exposed to the outside while covering a part of the first base portion and the third base portion.

According to another aspect of the present invention, there is provided a coupling structure of a plurality of members integrally combined through overmolding of a silicon cover layer to form a nosepiece nipple, the nipple being formed of a silicone material, A first member having a flange-shaped first base integrally extended on a rear side of the first base and having a hollow portion communicating with the nipple portion at a rear center side of the first base portion; And a second front base portion which is formed of a harder material than the first member and has a size larger than that of the first base portion of the first member and has a surface contact with the first base portion, A second member having a second rear base on a side opposite to the second front base and having an engaging portion for engaging and engaging the first engaging portion on the center side; And a flange-shaped third base portion formed of a silicone material and capable of surface contact with the second rear base portion at a front side thereof and having a body portion at a rear side of the third base portion, And a third coupling part inserted into the hollow part of the first coupling part on the side of the nipple part so as to communicate with the outside of the nipple part while the hollow part and the third coupling part are inserted and coupled And a third member.

The present invention provides a flexible nipple and a rigid body element for supporting the nipple by integrally forming the nipple through overmolding of the silicone material to provide a flexible silicone material characteristic while providing a rigid body support function And the ventilation function in the nipple effectively.

Further, the present invention takes a structure in which a soft silicon material is bonded in a manner of wrapping over a molding in a state where a hard body element is in surface contact, so that a complicated assembling process or an assembling structure for a hard body element is required There is an advantage that it is not.

Further, the present invention is advantageous in that the nosepiece nipple body can be easily assembled in the pre-overmolding step, the failure rate can be reduced easily, and the nosepiece nipple can be manufactured in a small work process.

Particularly, in the present invention, since the nosepiece nipple to be inserted into the metal mold for overmolding is tightly engaged and fixed only by pressing the silicon parts against each other by the metal mold, it is unnecessary to fix the hard part separately, The molten silicon does not penetrate into the surface contact portion, and the entire hard portion is covered with silicon through the overmolding, so that it is not exposed to the outside.

FIG. 1A is a perspective view of a nosepiece according to an embodiment of the present invention, FIG.
FIG. 1B is a perspective view of still another embodiment of the nosepiece nipple according to the present invention,
FIG. 2 is an exploded perspective view of a soap nipple according to an embodiment of the present invention, FIG.
FIG. 3 is an exploded perspective view of still another nipple according to an embodiment of the present invention,
4 is a cross-sectional view of a soot nipple according to an embodiment of the present invention,
FIG. 5 is a schematic view for explaining a manufacturing process of a nosepiece nipple according to an embodiment of the present invention.

The present invention may be embodied in many other forms without departing from its spirit or essential characteristics. Accordingly, the embodiments of the present invention are to be considered in all respects as merely illustrative and not restrictive.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. And / or < / RTI > includes any combination of a plurality of related listed items or any of a plurality of related listed items.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises", "having", "having", and the like are intended to specify the presence of stated features, integers, steps, operations, components, Steps, operations, elements, components, or combinations of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and a duplicate description thereof will be omitted. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a nosepiece according to an embodiment of the present invention. FIG. 2 is a perspective view of the nosepiece according to an embodiment of the present invention. FIG. 3 is an exploded perspective view of still another nipple according to an embodiment of the present invention, and FIG. 4 is a sectional view of a nipple according to an embodiment of the present invention.

The nosepiece nipple (A) according to an embodiment of the present invention includes a first member 100 including a nipple shape, a second member 100 disposed on the opposite side of the nipple shape and capable of holding the first member 100 by hand Three members 300 and a second member 200 for allowing the first member 100 and the third member 300 to be coupled to each other.

The nosepiece nipple A of the present embodiment can be overmolded to the outside of the second member 200 in a state where the first member 100 and the third member 300 are coupled via the second member 200, And the silicon cover layer 1000 formed through the silicon oxide layer (not shown).

The first member 100 is formed of, for example, a silicone material, and a flange-shaped first base portion 102 is integrally formed on the rear side of the nipple portion 120.

The second member 200 is formed of a hard material than the first member 100 and has an enlarged portion 201 having a size larger than that of the first base portion 102 of the first member 100 And a second front base part 203 which is in surface contact with the first base part 102 is provided on the center front side of the extension part 201. The second front base part 203 is provided on the opposite side of the second front base part 203 And a second rear base portion 202.

For example, the second member 200 may be formed of a synthetic resin material such as PA (Poly Amide), PC (Poly Carbonate), PP (Poly Phenylene), PES (Polyether Sulfone) have.

The third member 300 includes a flange-shaped third base portion 302 that is in surface contact with the second rear base portion 202 on the front side, And a main body 304 is provided.

The third member 300 may be formed of silicon, for example. The third member 300 may be formed of the same material as that of the first member 100, a transparent material may be used, an opaque material considering design, or a slightly hard material considering durability may be used .

The body portion 304 is preferably formed in an annular shape so that it can be used as a handle.

The nosepiece nipple A according to the present embodiment is configured such that the first base portion 102 of the first member 100 and the second front base portion 203 of the second member 200 are in surface contact with each other, The first member 100 and the second member 200 are brought into contact with the second back surface base portion 202 of the member 200 and the third base portion 302 of the third member 300, The third member 300 is integrally coupled through overmolding of the silicon cover layer 1000. [

The silicon cover layer 1000 is formed to cover the front and rear surfaces of the extension portion 201 of the second member 200 and to surround the outer periphery of the extension portion 201.

Through the structure of this silicon cover layer 1000, the nosepiece nipple A of the present embodiment provides the characteristic of a flexible silicon material layer outside the extension 201, Thereby providing a rigid body support function. With this structure, since the flexible silicone material provides a property that the hard expanding portion 201 does not easily collapse while reducing the risk of scarring due to the inconvenience and friction of the infant when the infant touches the skin outside the expanding portion 201, It is possible to prevent the risk of easy swallowing.

The silicon cover layer 1000 includes a second front base portion 203 and a second rear base portion 202 which surround a portion of the first base portion 102 and the third base portion 302, And is not directly exposed to the outside.

Through the structure of this silicon cover layer 1000, the nosepiece nipple A of the present embodiment includes a first member 100 having a nipple portion 120 and a second member 200 having an extension 201 (Surface contact portion) of the third member 300 having the body portion 304 and the body portion 304 is not directly exposed to the outside, and when the over molding of the silicon cover layer 1000 is formed, Resulting in no need for complicated assembly processes or assembly structures for rigid elements.

In FIGS. 2 to 4, the silicon cover layer 1000 is separated into the front cover layer 1000b and the rear cover layer 1000a for convenience of explanation. However, they are integrally formed by overmolding.

On the other hand, in a predetermined position of the silicone cover layer 1000 corresponding to the extension 201 of the second member 200, a choking preventing hole (not shown) for preventing choking when the baby accidentally swallowed the soother nipple A 204, and 1004 may be further formed.

A plurality of coupling grooves 250 may be further formed on the extension 201 of the second member 200 so that the molding of the silicon cover layer 1000 is more firmly formed. The joining portion 1050 of the substrate 1000 may be joined in a further inflow form.

The first member 100, the second member 200, and the third member 300 of the present embodiment having the above-described configuration form a solid assembled state with each other, and a smooth ventilation structure The following detailed configuration is provided.

The first member 100 includes a first engaging portion protruding from the rear center of the first base portion 102 and having a hollow portion 112 communicating with the nipple portion 120 formed in a hollow shape, 110).

The second member 200 has a coupling hole 210 through which the first coupling portion 110 is inserted into the center of the second member 200.

The first coupling portion 110 and the coupling hole 210 may be formed to have an elliptical cross-section so that the insertion coupling is easy and the coupling state can be maintained without rotating after coupling. Alternatively, Shaped cross-section.

The first coupling portion 110 includes an intermediate portion 114 extending from the first base portion 102 to the rear side and an extended coupling portion 116 extending further from the intermediate portion toward the rear side.

4, when the first coupling part 110 and the coupling hole 210 are inserted and engaged, the coupling hole 210 is engaged with the extended coupling part 116, .

The extension coupling portion 116 is provided on the side adjacent to the middle portion 114 and includes a front inclined surface 116a inclined downward toward the front side and a rear inclined surface 116b positioned on the opposite side of the front inclined surface, And includes an inclined surface 116b.

The downward direction in the 'downward slope' may be understood to mean a state in which the height of the extended coupling portion 116 is lowered.

Even if an infant using the nosepiece nipple A is bite and twist with the mouth in a state where the first engagement portion 110 is inserted into the engagement hole 210, 110 are formed so as to extend further outward than the intermediate portion 114 so as to firmly maintain the engaged state.

The rear inclined surface 116b may be formed in the second member 200 when the first engaging portion 110 is inserted into the engaging hole 210 in the process of assembling the first member 100 and the second member 200, The second rear base portion 203 and the second rear base portion 202 of the body 200 can be easily inserted into the coupling hole 210 formed by the second rear base portion 202. [

For example, the first coupling portion 110 may be press-inserted into the coupling hole 210 of the second member 200 in a state where the expansion coupling portion 116 is elastically contracted and deformed, As the pressing force is released, the expansion joint portion 116 is restored to its original shape by elasticity, and the insertion coupling is performed to the coupling hole 210.

The coupling member 210 includes a coupling slope 210a that is in surface contact with the front slope 116a.

The front inclined surface 116a is in surface contact with the engaging inclined surface 210a and the rear inclined surface 116b is in contact with the third inclined surface 316 while the extended coupling portion 116 is inserted into the coupling hole 210, .

The first member 100 and the second member 200 can firmly maintain the engaged state by the inclined directions of these inclined surfaces.

The third member 300 includes a third coupling portion 320 inserted into the hollow portion 112 of the first coupling portion 110 at the center of the third base portion 302.

The third coupling portion 320 is formed in the shape of a protrusion of an elliptical cross section and is inserted into the hollow portion 112 in a state where the first coupling portion 110 and the coupling hole 210 are inserted. And the size of the hollow portion 112 is not reduced even if an external force is applied to the first coupling portion 110 due to the third coupling portion 320 inserted into the hollow portion 112.

Therefore, even if an external force is applied to the first coupling portion 110, the outer peripheral portion formed by the extended coupling portion 116 is maintained to be larger than the coupling hole 210, The second member 200 and the third member 300 can stably maintain the engagement.

The third member 300 according to an embodiment of the present invention is configured such that the inside of the nipple part 120 is inserted into the nipple part 120 in a state in which the hollow part 112 and the third engaging part 320 are inserted, And a communicating pipe 312 communicating with the outside.

The vent hole 312 of the third member 300 includes an external vent hole 312b formed in the main body 304 and an external vent hole 312b communicating with the external vent hole 312b, And a ventilation duct 312a formed on the outer side.

The air corresponding to the volume of the compressed space of the nipple part 120 flows through the ventilation duct 312a to the outside vent hole 312b, When the pressure applied to the nipple part 120 is released, the outside air is introduced into the outer vent hole 312b again by the pressure difference, enters the nipple part 120 through the ventilation duct 312a, (120) is inflated to restore the original state.

The vent path 312 may, in another embodiment, be made of one or more vent grooves or vent holes, and any shape capable of communicating the outside with air is possible.

At least one coupling protrusion 214 protrudes from the second member 200 on the side of the second rear base part 202 and the third member 300 is inserted into the second insertion hole 214 At least one coupling hole 314 is formed.

The coupling protrusions 214 guide the coupling between the second member 200 and the third member 300 easily while the second member 200 and the third member 300 are twisted So that a clearance is not generated or the coupling is not released.

The coupling protrusions 214 are formed in an angular shape so that the shape of one coupling protrusion 214 is not inserted after being inserted into the coupling hole 314, And two or more coupling protrusions 214 may be protruded to be inserted into the coupling holes 314 so as not to be rotated.

The engaging protrusion 214 is inserted into the engaging hole 314 of the third member 300 by pressurization and the two engaging protrusions 214 are inserted into the two engaging holes 314 in this embodiment, So that the second member 200 and the third member 300 are not rotated and the coupling is maintained in the inserted state.

The first base portion 102 of the first member 100 and the second front base portion 102 of the second member 200 are fixed to the outer surface of the first coupling portion 110 of the first member 100, 203 are in surface contact and the second back surface base portion 202 of the second member 200 and the third base portion 302 of the third member 300 are in surface contact with each other, The recessed portion 118 is formed to be in surface contact with at least a part of the engaging projection 214 of the engaging projection 200. [

The recessed groove 118 of the present embodiment is configured such that when the extended engagement portion 116 of the first member 100 is inserted into the engagement hole 210 of the second member 200, So that the first member 100 is not rotated (or twisted) in a state in which it is engaged with the second member 200.

That is, the nosepiece nipple A of the present embodiment has the shape of the coupling hole 210 into which the extended coupling portion 116 having the elliptical cross section and the extended coupling portion 116 are inserted and the shape of the coupling projection 214, The second member 200 and the third member 300 are coupled to each other by surface contact of the first member 100 and the third engaging portion 320 inserted into the hollow portion 112 described above, It is possible to have a retaining force which is not easily released.

Due to the above-described engagement holding force, the joining of the soot nipple A is stably maintained in the entire manufacturing process including the over molding step, which will be described later, so that the defective incidence of the manufactured soother nipple A can be reduced.

FIG. 5 is a schematic view for explaining a manufacturing process of a nosepiece nipple according to an embodiment of the present invention.

The first member 100 having the nipple portion 120 and the second member 200 having the extension portion 201 and the third member having the body portion 304 300 are formed (Fig. 5 (a)). The first member 100 is preferably formed of a flexible silicone material, and preferably the third member 300 contacting the skin of the infant is also formed of a silicone material.

The first member 100 and the second member 200 and the third member 300 are charged into the overmolding molds 10 and 20 in a state where the first member 100 and the third member 300 are in mutual surface contact engagement )).

More specifically, in the nosepiece nipple (A) of this embodiment, the first base portion 102 of the first member 100 and the second front base portion 203 of the second member 200 are in surface contact The overmolding molds 10 and 20 are formed in a state that the second back surface base portion 202 of the second member 200 and the third base portion 302 of the third member 300 are in surface contact with each other. ).

The first member 100 and the second member 200 are first inserted and coupled to each other in the connection structure of the extended coupling portion 116 and the coupling hole 210 and for the convenience of coupling, So that the third member 300 is engaged. That is, after the first member 100 and the second member 200 are inserted and coupled, the third engaging portion 320 of the third member 300 is inserted into the hollow portion 112 of the first member 100 The engaging projections 214 of the second member 200 are inserted into the engaging holes 214 of the third member 300 so that the first member 100, the second member 200, .

The surface contact areas of the first member 100, the second member 200 and the third member 300 may be pre-bonded through physical or chemical methods (for example, thermal fusion or adhesion) a stationary structure for locally pressing and fixing the surface contact portions of the first member 100, the second member 200 and the third member 300 is formed in the molds 10 and 20 for overmolding, This bonding is not necessarily required since the bonding state can be maintained firmly and the bonding state can be achieved by the silicon cover layer 1000.

The first member 100, the second member 200, and the third member 300 are integrally combined with each other while making surface contact between the base portions, in a state where the first member 100, the second member 200, The flange-shaped first base portion 102 and the flange-shaped third base portion 302 are combined with each other in the direction of further reinforcing the surface contact between the flange- Can be maintained firmly.

Accordingly, the coupling structure according to the present embodiment includes a flange-shaped first base portion 102 and a flange-shaped third base portion 302 in the nosepiece nipple body inserted into the molds 10 and 20 for overmolding The molds 10 and 20 can be further held firmly by being pressed on both sides. Since the nosepiece inserted into the molds 10 and 20 is fixed only by pressing the silicon portions 10 and 20 against each other, it is not necessary to fix the hard portion separately, Which is surrounded by silicon.

Since the first base portion 102 and the third base portion 302 are closely contacted with each other through the silicone so that the molds 10 and 20 are separated from the first base portion 102 and the third base portion 302, The molten silicon injected into the molds 10 and 20 for overmolding at both sides is pressed against the surface contact portions of the first member 100, the second member 200 and the third member 300 to the molding pressure There is also an effect that it is naturally prevented from being infiltrated by.

In a state where the first member 100 and the second member 200 and the third member 300 are connected to each other by mutual surface contact so as to be charged in the overmolding dies 10 and 20, ) And the second metal mold 20 are fastened to each other (Fig. 5 (c)).

A silicon material in a molten state is injected into the overmolding molds 10 and 20 to perform overmolding (FIG. 5 (d)).

The first member 100 having the nipple part 120 and the second member 200 having the extension part 201 and the third member 300 having the body part 304 are formed by overmolding, And the silicon cover layer 1000, as shown in FIG.

The silicon cover layer 1000 is formed to cover the front and rear surfaces of the extension portion 201 of the second member 200 and surround the outer circumference of the extension portion 201.

The silicon cover layer 1000 includes a second front base portion 203 and a second rear base portion 202 while enclosing a part of the first base portion 102 and the third base portion 302 And is not directly exposed to the outside.

Although the present invention has been described with reference to the preferred embodiments thereof with reference to the accompanying drawings, it will be apparent to those skilled in the art that many other obvious modifications can be made therein without departing from the scope of the invention. Accordingly, the scope of the present invention should be interpreted by the appended claims to cover many such variations.

100: first member 102: first base part
110: first coupling portion 112: hollow portion
114: intermediate portion 116: extended coupling portion
116a: front inclined surface 116b: rear inclined surface
118: recessed portion 120: nipple portion
200: second member 201: extension part
202: second rear base portion 203: second front base portion
210: Coupling port 210a:
214: engaging projection 300: third member
302: third base portion 304: main body portion
312: vent pipe 312a: vent duct
312b: outer vent hole 314: engaging hole
320: Third coupling part 1000: Silicon cover layer
A: Toothpick nipple

Claims (10)

A first member formed of a silicone material and having a flange-shaped first base integrally extended on a rear side of the nipple;
And a second front base portion which is formed of a harder material than the first member and has a size larger than that of the first base portion of the first member and has a surface contact with the first base portion, A second member provided at the center side and having a second rear base portion opposite to the second front base portion; And
And a third member having a flange-shaped third base portion that is in surface contact with the second rear base portion on the front side and a body portion on the rear side of the third base portion,
The first base portion of the first member and the second front surface base portion of the second member are in surface contact and the second back surface base portion of the second member and the third base portion of the third member are in surface contact, The first member, the second member, and the third member are integrally joined through overmolding of the silicon cover layer,
Wherein the silicone cover layer covers a front surface and a rear surface of an extension portion of the second member and surrounds an outer periphery of the extension portion and surrounds a portion of the first and third base portions, And the second rear base portion is not directly exposed to the outside.
The method according to claim 1,
Wherein the first member includes a first engaging portion protruding from a rear center side of the first base portion and having a hollow portion communicating with the nipple portion formed in a hollow shape,
Wherein the second member has a coupling hole through which the first coupling portion is inserted and coupled to the center side,
The third member may include a third engaging portion inserted into and engaged with the hollow portion of the first engaging portion at a center side of the third base portion. When the hollow portion and the third engaging portion are inserted and engaged, the inside of the nipple portion And a vent pipe for communicating with the outside of the nipple part.
3. The method of claim 2,
Wherein the first engaging portion includes an intermediate portion extending from the first base portion to the rear side and an extended coupling portion extending further from the intermediate portion toward the rear than the intermediate portion and extended further outward than the intermediate portion,
Wherein the first and second engaging parts are engaged with each other by the engaging part and the extended engaging part in a state in which the first engaging part and the engaging part are engaged with each other.
The method of claim 3,
Wherein the enlarged engagement portion includes a front slope surface located on the side adjacent to the middle portion and inclined downward toward the front side and a rear slope surface positioned on the opposite side of the front slope surface and inclined downward toward the rear side,
Wherein the coupling hole includes a coupling sloped surface that is in surface contact with the front sloped surface.
3. The method of claim 2,
The vent pipe of the third member includes:
An outer ventilation hole formed in the main body part,
And a ventilation duct communicating with the external ventilation hole and formed at an outer side of the third engagement portion.
3. The method of claim 2,
The second member has at least one engaging protrusion protruded from the second rear base,
Wherein the third member is formed with at least one engagement hole into which the engagement protrusion is inserted.
The method according to claim 6,
And an outer side surface of the first engaging portion of the first member,
The first base portion of the first member and the second front base portion of the second member are in surface contact and the second back surface base portion of the second member and the third base portion of the third member are in surface contact,
And a recessed portion that is in surface contact with at least a part of the engaging projection of the second member is further formed.
delete delete A coupling structure of a plurality of members integrally joined through overmolding of a silicon cover layer to form a soot nipple,
A first coupling portion formed of a silicone material and having a flange-shaped first base integrally extended on the rear side of the nipple portion formed in a hollow shape and having a hollow communicating with the nipple portion toward the rear center side of the first base portion; A protruding first member;
And a second front base portion which is formed of a harder material than the first member and has a size larger than that of the first base portion of the first member and has a surface contact with the first base portion, A second member having a second rear base on a side opposite to the second front base and having an engaging portion for engaging and engaging the first engaging portion on the center side; And
And a flange-shaped third base portion which is formed of a silicone material and is in surface contact with the second rear base portion is provided on the front side and a body portion is provided on the rear side of the third base portion, And a third coupling portion inserted into the hollow portion of the first coupling portion and having a hollow portion communicating with the outside of the nipple portion in a state where the hollow portion and the third coupling portion are inserted and engaged, 3 members,
Wherein the silicone cover layer covers a front surface and a rear surface of an extension portion of the second member and surrounds an outer periphery of the extension portion and surrounds a portion of the first and third base portions, And the second rear base portion is not directly exposed to the outside.

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