JPH038298Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a nipple for a baby bottle that can prevent the enlargement of the breast hole at the tip of the nipple, that is, protect the breast hole, and can adjust the amount of sucked milk.

[Prior Art] Baby bottle nipples are made of natural rubber, synthetic rubber, silicone rubber, etc., and have a round hole, cross cut, triple cut, etc. formed at the tip of the nipple to form a breast hole.

The present applicant previously proposed Japanese Patent Publication No. 51-38265 "Nipple for Baby Bottle" by creating a difference in wall thickness between the sucking opening at the tip of the nipple and the area around the sucking opening into a thin part and a thick part. A cruciform cross cut is made in the thin film part, so that the thick part serves as a fulcrum and the sucking mouth part can perform a valve action. As a result, the authors have provided a nipple whose breast opening opens to various sizes, from milk to baby food, depending on the sucking force of the infant, but they have not mentioned the relationship between the material and structure of the nipple.

For example, in the case of the silicone rubber nipples that are so widely used today, the tear strength is low and cracks can grow, causing the cross-cut to suddenly enlarge, resulting in delicate problems such as excessive milk output and leakage. It was hot.

[Problems to be solved by the invention] The present invention attempts to solve the above-mentioned problems by providing a breast hole in the thin film part at the tip of the nipple as shown in the above-mentioned Japanese Patent Publication No. 51-38265. The thick part is made to protrude downward. In other words, from inside the short tip of the nipple, a hollow tube that forms a bell-shaped cavity at the bottom of the breast hole is continuously projected downward into the inside of the nipple.
This creates a breast hole at the tip of the nipple in the thin film part,
A hollow tube is extended downward from the peripheral thickened portion. This hollow tube prevents the breast hole from becoming enlarged and also serves to regulate the amount of milk that flows from the nipple to the breast hole during suckling.

[Means for Solving the Problems] To explain the present invention, as described above, a breast hole is provided in the thin film part at the center of the tip of the nipple, and a hollow tube is made to protrude downward into the nipple from around the hole. This nipple prevents the occurrence of cracks in the breast hole and the growth (expansion) of the cracks, and since the milk that flows from the bottle into the breast hole during sucking passes through this hollow tube, it is possible to regulate the flow rate.

[Function] In this invention, the center of the tip of the nipple is a thin film part,
By making a hollow tube protrude into the nipple from around this thin membrane part and making a cross cut in this thin membrane part, the mammary pore opens immediately in response to the infant's sucking force and closes when sucking stops. In other words, it easily exhibits an on-off valve action in response to external forces.

The fulcrum of the hollow tube is located around the thin membrane with the cross cut, so when the infant puts the nipple in his/her mouth and starts sucking by squeezing the body of the nipple, the cross cut opens and the ring of the hollow tube becomes the fulcrum. Thus, the thin film piece exhibits a valve effect.

Also, since this hollow tube is the path for milk to pass through to the mammary hole, the flow rate is inevitably regulated by the diameter of the tube, and when sucking milk by squeezing the torso with your tongue, the internal tube also changes. To solve the phenomenon of too much milk coming out or drinking too much without any effort of sucking, in the case of a valve breast hole which tends to deform and narrow the diameter of the tube in response to squeezing force, and thus tends to open.

[Example] An embodiment of the present invention will be described according to the drawings.

Figure 1 is a longitudinal sectional view of the nipple A of the present invention, Figure 2 is a bottom view of the nipple A of the present invention, and Figure 3 is an enlarged sectional view of the longitudinal sectional view of the nipple A in Figure 1 with the hollow tube elongated. FIG. 2 is an explanatory diagram of the open state of the breast hole and the flow rate regulation state of the hollow tube during sucking.

First, in Fig. 1, the nipple A has a cylindrical thick part 1 on the inner surface of the nipple, around the upper center of the tip b of the nipple, which has a hemispherical outer surface, or a conical column shape that tends to taper downward. A, a bell-shaped small hole 2 with an upper hemispherical tip is provided at the center of the cylindrical ring, a dome-shaped thin film part 3 is provided above this small hole, and a dome-shaped thin film part 3 is provided on this small hole. Shape the breast hole of glyph-shaped cut 4.

In other words, it is composed of a nipple a having a hollow tube 5 having a small bell-shaped hole in the longitudinal section within the nipple tip b, a body portion 6, and a flange 8. A rib 7 protruding from the lower part of the body 6 is positioned above the cap and engages with the cap. The flange 8 also has a taper 9.
As shown in the figure, a two-stage air hole 11 is punched in a part of the flange 8, a thin film is formed, and an air valve 10 is formed by making a minus cut, and a bottle and a nipple are fixedly connected below the flange 8. , an annular bottom rib 12 for protecting the air valve 10 from strain is made slightly longer than the length of the air valve 11, and is formed except at the position of the air valve 10.

In FIG. 2, a perpendicular cross-shaped cut 4 is made in the thin film portion 3 at the tip b of the nipple at its center. FIG. 3 shows an enlarged sectional view of the teat a, with the thin film part 3 in the closed state, 3 in the open state during sucking, and 5 in the hollow tube state during sucking.

[Effect of the invention] Regarding the use of the nipple according to the above invention, the flange 8 of the nipple A of the present invention is placed on top of a bottle containing milk, and the air valve 10 of the nipple A and the bottom rib 9 are placed in the bottle mouth.
When the baby enters, the cap screws together the nipple A and the bottle to form a baby bottle and allows the baby to breastfeed.

In the case of the nipple A of the present invention, by making the hollow tube 5 protrude downward within the nipple tip b of the nipple a, the thin film and the breast hole formed in the thin film can be protected. That is, the existence of the hollow tube 5 is due to the thin film portion 3.
Since it forms an outer peripheral ring, it serves as a fulcrum for the valve action when the breast hole opens, and at the same time prevents the breast hole from expanding, cracking, and growing on the thin film. In this case, the effect is exhibited whether the breast hole is cross-shaped or round. By protruding this hollow ring 5 into the nipple, the milk flow rate can be regulated. This is because the breast opening is easy to open depending on the sucking force, and the hollow ring 5 prevents milk from flowing out from the breast opening that is left open.
Because the baby is caught in the ring, it can only suck the amount of milk that passes through the ring. Furthermore, when sucking by squeezing the trunk of the nipple A, the hollow tube also tends to deform into a flattened form, reducing the flow rate. The longer the hollow tube is, the more remarkable this flow rate regulation effect becomes. For this reason, when a baby wants to suck a large amount of milk, a large sucking force is required and effort is required to suck, and the accompanying sucking movement is carried out, which inevitably promotes functional development and is suitable for child-rearing.

[Brief explanation of the drawing]

Figure 1 is a longitudinal cross-sectional view of the nipple A of the present invention, Figure 2 is a bottom view of the nipple A of the present invention, and Figure 3 is a longitudinal cross-sectional view of the nipple a in which the hollow tube 5 at the tip b of the nipple A of Figure 1 is lengthened. It is an enlarged sectional view, and is an explanatory view of the state of the breast hole and the hollow tube 5 during sucking. A... Actual nipple, a... Nipple, b... Nipple tip, 1... Cylindrical thick part, 2... Bell-shaped small hole,
3, 3'...Thin film part, 4...Cross-shaped cut, 5...
... hollow tube, 6 ... body, 7 ... rib, 8 ...
...flange, 9...taper, 10...air valve,
11...Air hole, 12...Bottom rib.

Claims (1)

[Scope of utility model registration request] Around the upper center of the tip of the nipple, which has a hemispherical outer surface,
On the inner surface of the nipple, a cylindrical or slightly downwardly tapering conical column-shaped thick part is made to protrude downwardly within the nipple, and in the center of the cylindrical ring is a bell-shaped small hole with an upper hemispherical tip. , a dome-shaped thin film part is provided above the small hole, and the thin film has a cross-shaped cut, and a hollow tube having a longitudinal section or a bell-shaped small hole is provided in the tip of the nipple. For nipples.