JPH0595540U - Baby bottle - Google Patents

Abstract

(57) [Summary] [Purpose] The liquid is prevented from leaking to the outside without impairing the function of introducing air from the outside into the bottle body when sucking the liquid. [Structure] A valve body 20 is provided in an opening 15 formed in a wall portion of the bottle body 10, the valve body 20 is integrally formed of an elastic body, and is inserted into the opening 15 and projects into the bottle body 10. And a holding portion 22 that holds the projection 21 in the opening 15, and the projection 21 of the valve body 20 is joined to its inner wall surface by elastic contact with each other. The part 23 is provided. As a result, at the time of suction, the contact portion 23 of the valve body 20 opens against the elastic force due to the pressure difference from the outside air pressure, and air is introduced into the bottle body 10 from the outside. On the other hand, at the time of non-suction, the close contact portion 23 is joined by the elastic force, and since the close contact portion 23 is formed by the inner wall surface of the cylindrical protruding portion 21, the joint area is relatively large. Leakage is reliably prevented.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a baby bottle for giving a baby a liquid such as milk.

[0002]

[Prior Art]

 Conventionally, as a baby bottle, for example, those shown in FIGS. 8 and 9 have been known (published in Japanese Utility Model Laid-Open No. 62-142345). This feeding bottle has a cylindrical shape in which a valve body 3 having a slit 2 closed at the front end of a concave spherical portion 1 is preliminarily provided on the upper outer surface of a bottle body 5 via a tightening knob 4. It can be attached to the opening 6.

When a baby or the like drinks liquid such as milk, when the liquid in the bottle body 5 gradually decreases and the pressure in the bottle body 5 becomes lower than the atmospheric pressure, the pressure of the atmospheric pressure is changed. The slit 2 opens due to the pressure difference, and air is introduced into the bottle body 5 from the outside, thereby making the internal pressure equal to the external pressure and facilitating the suction of the liquid.

[0004]

[Problems to be solved by the device]

 By the way, in the above-mentioned conventional feeding bottle, when the liquid is present in the portion where the valve body 3 is located, the slit 2 of the valve body 3 is only formed by cutting at the tip of the concave spherical portion 1, so that suction is performed. There was a problem that the liquid easily leaks from the slit 2 when the operation is stopped or interrupted, and the outer wall of the bin body 5 is soiled.

The present invention has been made in view of the above problems, and prevents the liquid from leaking to the outside during non-suction without impairing the function of introducing air into the bottle body from the outside during suction of the liquid. It is in.

[0006]

[Means for Solving the Problems]

 In order to solve such a problem, the technical means of the present invention is a baby bottle in which a valve body capable of introducing air from the outside is attached to a bottle body containing a liquid, and the valve body is formed of an elastic body. The present invention is configured by including a cylindrical projecting portion projecting into the bottle body, and providing the projecting portion of the valve body with a close contact portion in which its inner wall surface is joined and elastically contacted with each other.

[0007]

[Action]

 According to the baby bottle having such a configuration, when the liquid in the bottle body gradually decreases during suction and the pressure in the bottle body becomes lower than the atmospheric pressure, the elasticity of the bottle becomes elastic due to the pressure difference from the atmospheric pressure. The close contact of the protruding portion of the valve body is opened against the force, and air is introduced into the bottle body from the outside. On the other hand, when not sucking, the contact part is joined by the elastic force. However, since the contact part is formed by the inner wall surface of the cylindrical protruding part, the joining area is relatively large, so that the leakage of liquid inside Is reliably prevented.

[0008]

【Example】

 Hereinafter, a baby bottle according to an embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, a baby bottle according to an embodiment includes a bottle body 10 for storing a liquid such as milk, a nipple 11 detachably provided in a mouth of the bottle body 10, and a bottle. The valve body 20 is provided on the side wall 13 near the bottom portion 12 of the main body 10 and can introduce air from the outside. Further, an opening 15 for mounting the valve body 20 is formed in the side wall 13 near the bottom portion 12 of the bottle body 10.

The valve body 20 is integrally formed of an elastic body such as rubber, and has a cylindrical protrusion 21 that is inserted into the opening 15 and protrudes into the bottle body 10, and the protrusion 21 is inserted into the opening 15. And a holding unit 22 for holding. The tip end side of the projecting portion 21 is formed in a flat shape, and the inner wall surface of the protrusion portion 21 is joined to the contact portion 23 which is elastically contacted with each other. Further, the holding portion 22 is formed at the base end portion of the projecting portion 21 and has a fitting portion 24 that is detachably fitted into the opening 15, and a flange portion that is connected to the fitting portion 24 and is joined to the outer wall surface of the bottle body 10. 25 and 25.

Therefore, according to the baby bottle of this embodiment, a liquid such as milk is put in the bottle body 10 and the baby is allowed to drink the liquid from the nipple 11. At the time of suction, as shown in FIG. 4, the bottle main body 10 is tilted with the nipple 11 side down, and the liquid inside the bottle main body 10 is sucked from the nipple 11. In this case, the liquid in the bottle main body 10 gradually decreases, and the pressure in the bin main body 10 becomes lower than the atmospheric pressure. However, due to the pressure difference with the external pressure, the valve body 20 resists the elastic force. The close contact portion 23 of the protruding portion 21 is opened, so that air is introduced into the bottle body 10 from the outside.

Further, at this time, as shown in FIG. 4, if the side wall 13 of the bottle body 10 where the valve body 20 is located is on the upper side, the air reservoir 16 is formed on the bottom portion 12 side of the bottle body 10, Since the valve body 20 is provided on the side wall 13 near the bottom portion 12 of the bottle body 10, the protrusion 21 of the valve body 20 faces the air reservoir 16. Therefore, the air that enters the bottle body 10 from the valve body 20 directly enters the air reservoir 16 without passing through the liquid, so that no bubbles are formed in the liquid, and the comfortable suction is performed accordingly.

On the other hand, at the time of non-suction, the contact portion 23 is joined by the elastic force, and moreover, the contact portion 23 is formed by the inner wall surface of the cylindrical protruding portion 21, so that the joining area is relatively large and therefore The liquid-tightness is good, and the leakage of the internal liquid is surely prevented. In particular, as shown in FIG. 1, when the bottle body 10 is erected upright, the valve body 20 faces the liquid, but since the liquid tightness is good, the leakage is prevented. That is, in this embodiment, it is possible to reliably prevent liquid leakage at all times, and prevent bubbles from being generated during suction.

Further, since the valve body 20 can be attached and detached by fitting and withdrawing the fitting portion 24, it can be removed and washed when the baby bottle is not in use, and can be cleaned. Further, since the valve body 20 is integrally formed of an elastic member and provided in the opening 15 of the bottle body 10, the structure is extremely simple as compared with the conventional one, and accordingly, the manufacturing is easy and the cost is low. can do.

FIG. 5 shows a valve body 30 according to another example. This valve body 30 is provided with a protruding portion 31 having a close contact portion 34 and a flange portion 32 as described above, and serves as a holding portion which can be screwed into the female screw 17 formed in the opening 15 at the base end portion of the protruding portion 31. Male screw 33 is formed. Therefore, since the valve body 30 is held by screw connection, the valve body 30 can be held securely and can be attached and detached, so that it can be removed and washed when the baby bottle is not in use. it can.

FIG. 6 shows a valve body 40 according to another example. The valve body 40 is formed with a fitting portion 42 that fits around the opening 15 at the base end portion of the protruding portion 41 having the same contact portion 43 as described above and presses the surrounding area from the inside and outside of the bin body 10. It was done. Therefore, the valve body 40 is held securely and the valve body 40 can be attached and detached by detaching the fitting portion 42. Therefore, the valve body 40 can be detached and washed when the baby bottle is not in use, and can be cleaned. it can.

In the above embodiment, the valve element is provided on the side wall 13 near the bottom 12 of the bottle body 10, but the invention is not limited to this, and the valve element may be provided on any part of the wall. good. Further, although the above-mentioned respective valve elements are made detachable, the present invention is not necessarily limited to this, and the holding portion may be fixed to the bottle main body 10 via an adhesive so as to be firmly coupled, and may be appropriately changed. You can do it.

Further, in the above embodiment, the valve element is directly attached to the bottle body 10, but the present invention is not limited to this, and it may be pressed by the knob as shown in the conventional example.

The applicant of the present invention has also developed a valve body 50 as shown in FIG. This valve body 50 is provided with a projecting portion 51 which is inserted into the opening 15 and projects into the bottle body 10. The projecting portion 51 is formed with a ventilation port 52 which blocks passage of liquid and has breathability. Is. This also makes it possible to reliably prevent the liquid inside from leaking.

[0020]

[Effect of the device]

 As described above, according to the feeding bottle of the present invention, the contact portion of the protruding portion of the valve body opens during suction, so that air can be introduced from the outside into the bottle main body to ensure comfortable suction and to ensure close contact. Since the inner wall surface of the cylindrical protrusion is joined, the joint area is relatively large, and since the close contact portion is joined by the elastic force, the liquid tightness is good and the leakage of internal liquid Can be reliably prevented.

[Brief description of drawings]

FIG. 1 is a perspective view showing a baby bottle according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a valve body of a baby bottle according to an embodiment of the present invention.

FIG. 3 is a sectional view showing a main part of a baby bottle according to an embodiment of the present invention.

FIG. 4 is a view showing a use state of the baby bottle according to the embodiment of the present invention.

5 is a cross-sectional view corresponding to FIG. 3 showing another example of the valve body.

FIG. 6 is a cross-sectional view corresponding to FIG. 3 showing another example of the valve body.

FIG. 7 is a sectional view showing another valve body corresponding to FIG.

FIG. 8 is a diagram showing an example of a conventional feeding bottle.

FIG. 9 is a cross-sectional view showing a valve body of a conventional baby bottle.

[Explanation of symbols]

 3 Valve body 5 Bottle body 10 Bottle body 15 Opening 20 Valve body 21 Projection part 22 Holding part 23 Adhesion part 30 Valve body 34 Adhesion part 40 Valve body 43 Adhesion part

Claims (1)

[Scope of utility model registration request] 1. A feeding bottle in which a valve body capable of introducing air from the outside is attached to a bottle body containing a liquid, wherein the valve body is formed of an elastic body and has a cylindrical protruding portion protruding into the bottle body. A baby bottle characterized in that it is provided with a close contact portion in which the inner wall surface of the valve body is joined to the protruding portion of the valve body so as to make elastic contact with each other.