JP4505756B2 - Milking machine - Google Patents

Milking machine Download PDF

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JP4505756B2
JP4505756B2 JP2007096560A JP2007096560A JP4505756B2 JP 4505756 B2 JP4505756 B2 JP 4505756B2 JP 2007096560 A JP2007096560 A JP 2007096560A JP 2007096560 A JP2007096560 A JP 2007096560A JP 4505756 B2 JP4505756 B2 JP 4505756B2
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space
milking
opening
pad
bottle
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JP2007181735A (en
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勝之 平岡
知之 大浦
靖男 森藤
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JEX Co Ltd
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JEX Co Ltd
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Description

本発明は、母乳を搾乳するための搾乳器に関するものである。   The present invention relates to a breast pump for milking breast milk.

従来の搾乳器５１は、図６に示すように、搾乳した乳液を溜めるボトル５２の上部に、仕切り部材５３を介して搾乳ヘッド５４をねじ嵌合により取り付け、この搾乳ヘッド５４にゴム球５５を取り付けたものである（例えば、特許文献１参照）。なお、図４において、５６は乳当て部、５７は逆止弁をそれぞれ示している。   As shown in FIG. 6, a conventional milking machine 51 has a milking head 54 attached by screw fitting to a top of a bottle 52 for storing milked milk via a partition member 53, and rubber balls 55 are attached to the milking head 54. It is attached (for example, refer to Patent Document 1). In FIG. 4, reference numeral 56 denotes a milk pad and 57 denotes a check valve.

この搾乳器５１の動作を説明する。まず、***に乳当て部５６を押し当てた状態でゴム球５５を圧縮すると、ゴム球５５から押出された空気が搾乳ヘッド５４内に流れ込む。搾乳ヘッド５４内に流れ込んだ空気は逆止弁５７を押し開き、ボトル５２へと流れ込む。このとき、ボトル５２に流れ込んだ空気は、ボトル５２と搾乳ヘッド５４とのねじ嵌合部のわずかなすき間を通過して外部空間へ排出される。その後、ゴム球５５の圧縮状態を解放すると、搾乳ヘッド５４内の空気はゴム球５５に吸引される。この状態では、ボトル５２内の空気は、逆止弁５７によって搾乳ヘッド５４内に流れ込まないので、密閉された搾乳ヘッド５４内は負圧となり搾乳が行われる。次にゴム球５５を圧縮すると、搾乳された母乳が空気とともに逆止弁５７を押し開き、ボトル５２に流れ込む。
実開昭５２−１５８９６号公報 Operation | movement of this milking machine 51 is demonstrated. First, when the rubber ball 55 is compressed in a state where the breast pad 56 is pressed against the breast, the air pushed out from the rubber ball 55 flows into the milking head 54. The air that has flowed into the milking head 54 pushes open the check valve 57 and flows into the bottle 52. At this time, the air flowing into the bottle 52 passes through a slight gap in the screw fitting portion between the bottle 52 and the milking head 54 and is discharged to the external space. Thereafter, when the compressed state of the rubber ball 55 is released, the air in the milking head 54 is sucked into the rubber ball 55. In this state, since the air in the bottle 52 does not flow into the milking head 54 by the check valve 57, the sealed milking head 54 has a negative pressure and milking is performed. Next, when the rubber ball 55 is compressed, the milked milk pushes the check valve 57 together with the air and flows into the bottle 52.
Japanese Utility Model Publication No. 52-15896

上述の搾乳器は、乳当て部からボトルに至る母乳の流入空間内に、ゴム球から吸排された空気が出入りする構造となっているため、搾乳した母乳が、例えば飛沫状態でポンプに流れ込んだり、ボトルが横転した際に母乳がポンプに流れ込むことがある。また、ポンプ内に母乳が流れ込まなくても、例えばポンプを構成するゴム球などの臭いがポンプ内の空気に混じり、その臭いが混じった空気が搾乳ヘッド内に流れ込むと、母乳にその臭いが移ることがある。   The above-described milking machine has a structure in which the air sucked and discharged from the rubber balls enters and exits into the milk inflow space from the milk pad to the bottle, so that the milked milk flows into the pump in a sprayed state, for example. When the bottle rolls over, breast milk may flow into the pump. Even if breast milk does not flow into the pump, for example, the smell of rubber balls that make up the pump is mixed with the air in the pump, and when the mixed air flows into the milking head, the smell moves to the milk. Sometimes.

また、上述のように使用者がゴム球を圧縮するなどして手動操作で搾乳を行う場合には、僅かな力で圧縮することができ、使用者の肉体的負担を軽減して搾乳を行えるようにする必要がある。   Moreover, when a user compresses a rubber ball and performs milking by manual operation as mentioned above, it can compress with a slight force and can reduce milking a user's physical burden. It is necessary to do so.

そこで、本発明は、かかる不具合を解消した搾乳器を提供することを目的とする。   Then, an object of this invention is to provide the breast pump which eliminated this malfunction.

上記目的を達成するため、本発明に係る搾乳器は、ボトルと、ボトルの開口部に取り付けられ、かつラッパ状に拡開した乳当て部を有する搾乳ヘッドと、搾乳ヘッドに取り付けられ、乳当て部の内部に負圧を発生させる負圧発生手段とを備えたものにおいて、負圧発生手段を、搾乳ヘッド内に配設される伸縮可能な仕切り膜と、仕切り膜で分割された搾乳ヘッド内の空間のうち、乳当て部の開口部およびボトルとの連通口を有する第１の空間と分離して形成される第２の空間に向けて圧縮により流体を吐出し、かつ圧縮後の弾性復元により第２の空間に満たされた流体を吸引する中空弾性体とで構成し、外部からの操作で、中空弾性体の内部と連通する第２の空間を外部に対して開放あるいは閉鎖する開閉機構をさらに備えたことを特徴とする。   In order to achieve the above object, a milking apparatus according to the present invention includes a bottle, a milking head that is attached to the opening of the bottle and has a milking part that expands in a trumpet shape, and is attached to the milking head. Comprising a negative pressure generating means for generating a negative pressure inside the part, wherein the negative pressure generating means is provided in an expandable partition film disposed in the milking head, and in the milking head divided by the partition film The fluid is discharged by compression toward the second space formed separately from the first space having the opening of the milk pad and the communication port with the bottle, and the elastic recovery after the compression And a hollow elastic body that sucks the fluid filled in the second space and opens or closes the second space communicating with the inside of the hollow elastic body by an operation from the outside. Characterized by further comprising .

本発明は、負圧発生手段を構成する中空弾性体の吸引作用により、仕切り膜によって分割された第１の空間と第２の空間のうち、第２の空間を収縮させ、仕切り膜を第２の空間側に移動させることで、乳当て部と連通する第１の空間を膨張させ、第１の空間内に負圧を発生させるものである。このように、本発明によれば、搾乳ヘッド内部の空間が、仕切り膜によって乳当て部に連通する第１の空間と、内部に満たされた流体を中空弾性体で吸引可能な第２の空間とに分離されるので、搾乳された母乳が第２の空間を介して例えばポンプ内に流れ込むのを防止することができる。また、本発明によれば、第１の空間内の空気と第２の空間内の流体が混ざり合うことがないので、乳当て部からボトルに至る母乳の流入空間内の空気に、例えばゴム球などの中空弾性体からの吸排気が混じり合うことがない。そのため、中空弾性体内の空気を、搾乳された母乳に触れさせないようにすることができる。なお、この仕切り膜は、例えば薄膜状の弾性体とすることができ、あるいは蛇腹部を備えた中空状の伸縮体とすることもできる。また、第２の空間を満たす「流体」は、上述のように第１の空間内の空気と混ざり合わないため、この流体として、空気の他にも、窒素ガス等の他の気体や水等の液体など、種々の流体を使用することができる。   The present invention shrinks the second space out of the first space and the second space divided by the partition membrane by the suction action of the hollow elastic body constituting the negative pressure generating means, and causes the partition membrane to By moving to the space side, the first space communicating with the milk pad portion is expanded, and negative pressure is generated in the first space. Thus, according to the present invention, the space inside the milking head includes the first space that communicates with the milk pad by the partition film, and the second space that can suck the fluid filled therein with the hollow elastic body. Therefore, the milked milk can be prevented from flowing into, for example, the pump through the second space. Further, according to the present invention, the air in the first space and the fluid in the second space do not mix with each other. The intake / exhaust from the hollow elastic body is not mixed. Therefore, the air in the hollow elastic body can be prevented from touching the milked milk. In addition, this partition film can be made into a thin-film-like elastic body, for example, or can be made into a hollow elastic body having a bellows portion. In addition, the “fluid” that fills the second space does not mix with the air in the first space as described above. Therefore, as the fluid, in addition to air, other gases such as nitrogen gas, water, etc. Various fluids can be used, such as liquids.

また、併せて、本発明に係る搾乳器は、外部からの操作で、中空弾性体の内部と連通する第２の空間を外部に対して開放あるいは閉鎖する開閉機構をさらに備えたことを特徴とする。このような構成とすることで、予め開閉機構を開放状態にして第２の空間と外部とを連通させた状態で、中空弾性体を中空弾性体を圧縮して第２の空間および中空弾性体内の空気を外部に放出し、その後開閉機構を閉鎖状態にして第２の空間と外部とを閉じ、中空弾性体の圧縮状態を解放することで、第２の空間内の空気が中空弾性体の内部に流れ込む。この結果、第２の空間を負圧状態にすると同時に中空弾性体内も負圧状態になるので、使用者は非常に小さい力で中空弾性体を圧縮して搾乳動作を行うことができる。   In addition, the breast pump according to the present invention further includes an opening / closing mechanism that opens or closes the second space communicating with the inside of the hollow elastic body with respect to the outside by an operation from the outside. To do. With such a configuration, the hollow elastic body is compressed by compressing the hollow elastic body in the state where the opening and closing mechanism is opened in advance and the second space communicates with the outside. Is released to the outside, and then the opening and closing mechanism is closed to close the second space and the outside to release the compressed state of the hollow elastic body. Flows into the interior. As a result, since the second space is brought into a negative pressure state and the hollow elastic body is also brought into a negative pressure state, the user can compress the hollow elastic body with a very small force and perform a milking operation.

また、中空弾性体のように一定量の流体を第２の空間との間で出入りさせる構成とした場合には、いかに第１の空間を大きく膨張させるかが問題となるが、本発明では、第２の空間を、外部に対して開放あるいは閉鎖する開閉機構を搾乳器に設けることにしたので、予め開閉機構を開放状態にして第２の空間と外部とを連通させた状態で、中空弾性体を圧縮して第２の空間および中空弾性体内の空気を外部に放出し、その後開閉機構を閉鎖状態にして第２の空間と外部とを閉じ、中空弾性体の圧縮状態を解放することで、第２の空間内の空気が中空弾性体の内部に流れ込む。この結果、第２の空間を負圧状態にして、仕切り膜を大きく第２の空間側に移動させることができるので、第１の空間の膨張容積をより一層大きくして、第１の空間内に非常に大きな負圧を発生させることができる。   Further, in the case of a configuration in which a certain amount of fluid enters and exits from the second space like a hollow elastic body, there is a problem of how to greatly expand the first space. Since the breast pump is provided with an opening / closing mechanism that opens or closes the second space with respect to the outside, the hollow elasticity is maintained in a state in which the opening / closing mechanism is opened in advance and the second space communicates with the outside. By compressing the body and releasing the air in the second space and the hollow elastic body to the outside, and then closing the second space and the outside by closing the opening / closing mechanism to release the compressed state of the hollow elastic body The air in the second space flows into the hollow elastic body. As a result, the second space can be brought into a negative pressure state and the partition membrane can be moved largely to the second space side, so that the expansion volume of the first space can be further increased, A very large negative pressure can be generated.

また、中空弾性体の圧縮変形に伴う吐出作用によれば、第２の空間内部に流体を送り込むことで、仕切り膜が第１の空間側に移動し、第１の空間内の空気が仕切り膜側から乳当て部側に押し込まれる。従って、排出装置を構成する中空弾性体の圧縮・解放を繰り返すことで、***を吸引するとともに押し込むことができ、単に吸引して解放するだけの従来品と比べて高いマッサージ効果を得ることができる。   Moreover, according to the discharge action accompanying the compressive deformation of the hollow elastic body, the partition membrane moves to the first space side by sending the fluid into the second space, and the air in the first space is moved to the partition membrane. It is pushed from the side to the breast pad side. Therefore, by repeatedly compressing and releasing the hollow elastic body constituting the discharge device, the breast can be sucked and pushed in, and a higher massage effect can be obtained compared to a conventional product that is simply sucked and released. .

搾乳時のマッサージ効果は、上記構成の他、内部に負圧を発生可能とした乳当て部と、弾性材料からなり、乳当て部の開口部に装着されたパッドとを有する搾乳器において、パッドに、他所よりも厚肉に形成され、自然状態で反乳当て面側に突出すると共に、乳当て部内部の負圧発生時に乳当て部の内面と当接することにより、乳当て面側に突出する厚肉部を設けることによって得ることもできる。すなわち、自然状態（乳当て部内部が常圧状態）では、パッドに設けられた厚肉部が反乳当て面側に突出するので、使用者が違和感を感じることなく***にパッドを装着することができる。また、負圧状態（パッドが乳当て部内部に吸引される状態）では、厚肉部が、乳当て部の内面と当接することで乳当て面側に突出するので、***が刺激される。従って、第２の空間２１内を繰り返し負圧状態と常圧状態とに切換えることにより、非常に高いマッサージ効果が得られる。   In addition to the above-described configuration, the massage effect at the time of milking is a pad in a breast pump having a milk pad that can generate a negative pressure inside, and a pad made of an elastic material and attached to the opening of the milk pad. In addition, it is thicker than other parts and protrudes to the anti-milking surface side in the natural state, and also protrudes to the milking surface side by contacting the inner surface of the milking part when negative pressure is generated inside the milking part. It can also be obtained by providing a thick part. In other words, in the natural state (the inside of the milk pad is at normal pressure), the thick part provided on the pad protrudes toward the anti-milk pad surface, so that the user can put the pad on the breast without feeling uncomfortable. Can do. Further, in the negative pressure state (a state where the pad is sucked into the milk pad part), the thick wall part comes into contact with the inner surface of the milk pad part and protrudes toward the milk pad surface, so that the breast is stimulated. Therefore, a very high massage effect can be obtained by repeatedly switching the second space 21 between the negative pressure state and the normal pressure state.

開閉機構には、種々のものが使用可能であり、例えば開閉機構を構成する弾性体を外部からの操作で弾性変形させることにより、第２の空間を外部に開放するように構成することもできる。   Various opening / closing mechanisms can be used. For example, the second space can be opened to the outside by elastically deforming an elastic body constituting the opening / closing mechanism from the outside. .

また、開閉機構による開放・閉鎖動作は、仕切り膜の変位を検知する検知部を設け、検知部によって検知された仕切り膜の変位量に応じて、自動的に行うことができる。あるいは、第１の空間の圧力を検知する検知部を設け、検知部によって検知された第１の空間の圧力に応じて、自動的に開閉動作を行うこともできる。   Further, the opening / closing operation by the opening / closing mechanism can be automatically performed according to the amount of displacement of the partition film detected by the detection unit provided with a detection unit that detects the displacement of the partition film. Alternatively, a detection unit that detects the pressure in the first space can be provided, and the opening / closing operation can be automatically performed according to the pressure in the first space detected by the detection unit.

かかる構成によれば、第１の空間が所定の圧力以下になると、第２の空間に自動的に外気が取り込まれ、第２の空間にある程度の外気が取り込まれると、すなわち第１の空間が所定の圧力値をこえると、第２の空間と外部との連通状態が自動的に閉じられ、第２の空間内の空気が抜かれる動作が一定のリズムで繰り返し行われる。このように、第１の空間の圧力状態を一定のリズムで切換えることでいわゆる「脈動効果」が得られるので、***を効果的にマッサージすることができ、搾乳をより一層容易に行うことができる。   According to this configuration, when the first space becomes a predetermined pressure or less, outside air is automatically taken into the second space, and when a certain amount of outside air is taken into the second space, that is, the first space is When the predetermined pressure value is exceeded, the communication state between the second space and the outside is automatically closed, and the operation of venting the air in the second space is repeatedly performed at a constant rhythm. Thus, since the so-called “pulsation effect” is obtained by switching the pressure state of the first space at a constant rhythm, the breast can be effectively massaged and milking can be performed more easily. .

本発明は、上述の如く、乳当て部を含み、かつボトルと連通する第１の空間を膨張させることでその空間内に負圧を発生させることを特徴とするものであるから、より効果的に負圧を発生させるためには、第１の空間の膨張前（第１の空間、第２の空間が共に同じ圧力状態）の容積をできるだけ小さくすることが必要となる。そのため、本発明では、第１の空間内の空気がボトル内に流れ込むのを許容する一方、ボトル内の空気が第１の空間内に流れ込むのを阻止する逆止弁を第１の空間とボトルとの間に介在させた。これによれば、第１の空間とボトル内部の空間とを分断して、負圧を発生させる第１の空間内の容積を減少させることができる。   As described above, the present invention is characterized in that the negative pressure is generated in the space by inflating the first space that includes the milk pad portion and communicates with the bottle. In order to generate a negative pressure, it is necessary to reduce the volume of the first space before expansion (the first space and the second space are in the same pressure state) as much as possible. Therefore, in the present invention, a check valve that allows the air in the first space to flow into the bottle while preventing the air in the bottle from flowing into the first space is provided with the first space and the bottle. And intervened between. According to this, the first space and the space inside the bottle can be divided, and the volume in the first space that generates the negative pressure can be reduced.

本発明に係る搾乳器によれば、搾乳した母乳とポンプ内の空気との接触を防止し、かつ搾乳した母乳がポンプに流入するのを防止することで、母乳の衛生状態を清潔に保つことができる。また、僅かな力で中空弾性体を圧縮でき、使用者の肉体的負担を軽減して搾乳を行うことができる。   According to the milking apparatus according to the present invention, the hygienic condition of the breast milk is kept clean by preventing the milk milk from contacting the air in the pump and preventing the milk milk from flowing into the pump. Can do. Moreover, the hollow elastic body can be compressed with a slight force, and the physical burden on the user can be reduced and milking can be performed.

以下、本発明の実施形態を、図面に基づいて説明する。なお、以下に説明する各実施形態において、同じ作用を奏する部材、部位には同じ符号を付して説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each embodiment described below, the same reference numerals are given to members and parts having the same action.

図１は、本発明の第１の実施形態に係る搾乳器１の縦断面図である。この搾乳器１は、台座２により直立させたボトル３と、ボトル３に取り付けられた搾乳ヘッド４と、チューブ５およびチューブ５を介して搾乳ヘッド４に取り付けられたゴム球（中空弾性体）６とで構成される排出装置７と、搾乳ヘッド４内に設けられた仕切り膜８と、を主な要素として構成される。   FIG. 1 is a longitudinal sectional view of a breast pump 1 according to the first embodiment of the present invention. This milking machine 1 has a bottle 3 upright by a base 2, a milking head 4 attached to the bottle 3, and a rubber ball (hollow elastic body) 6 attached to the milking head 4 via the tube 5 and the tube 5. And a partition film 8 provided in the milking head 4 as main elements.

搾乳ヘッド４は、略円筒状の基部９と、基部９の外周から外径側に延びた乳当て部１０と、基部９の上開口端９ａに取り付けられた上蓋部１１とを備えている。基部９は、その下端部内周に形成されたねじ部９ｂと、ボトル３の上端部外周に形成されたねじ部３ａとを、仕切り部材１２を介してねじ嵌合させることで、ボトル３に取り付けられる。なお、ボトル３と搾乳ヘッド４との間に介装される仕切り部材１２には逆止弁１３が設けられ、仕切り部材１２の鍔部１２ａ下面には半径方向溝１４が形成されている。   The milking head 4 includes a substantially cylindrical base 9, a milk pad 10 extending from the outer periphery of the base 9 to the outer diameter side, and an upper lid 11 attached to the upper opening end 9a of the base 9. The base 9 is attached to the bottle 3 by screwing a screw portion 9b formed on the inner periphery of the lower end portion and a screw portion 3a formed on the outer periphery of the upper end portion of the bottle 3 through the partition member 12. It is done. The partition member 12 interposed between the bottle 3 and the milking head 4 is provided with a check valve 13, and a radial groove 14 is formed on the lower surface of the flange portion 12 a of the partition member 12.

乳当て部１０は、基部９の外径側に向けてラッパ状に拡開した部分を有しており、その内部空間と基部９の内部空間とを連通させた状態で基部９と一体に形成される。乳当て部１０の開口部１０ａには、パッド１５が着脱可能に取り付けられている。このパッド１５は、例えばシリコンゴムやポリプロピレン等の弾性材料で形成され、パッド１５を乳当て部１０に取り付けた状態ではパッド１５の外周面（反乳当て面）１５ａと、乳当て部１０の内周面１０ｂとの間に隙間１６が形成される。このパッド１５は、個々人の***や乳頭を、その大きさに応じて乳当て部１０にフィットさせるためのアダプタとして機能するとともに、乳頭が搾乳ヘッド４内に吸引された状態では、隙間１６の分だけパッド１５全体を搾乳ヘッド４内に吸引することで、乳頭だけでなく、パッド１５に密着した***を、広い範囲に亘って搾乳ヘッド４内に吸引することを可能にしたものである。従って、使用者は、パッド１５を***に装着することにより、痛みを感じることなく搾乳を行うことができる。   The milk pad 10 has a portion that expands in a trumpet shape toward the outer diameter side of the base 9, and is integrally formed with the base 9 in a state where the internal space and the internal space of the base 9 are communicated with each other. Is done. A pad 15 is detachably attached to the opening 10 a of the milk pad 10. The pad 15 is made of, for example, an elastic material such as silicon rubber or polypropylene. When the pad 15 is attached to the milking part 10, the outer peripheral surface (anti-milking surface) 15 a of the pad 15 and the inside of the milking part 10 A gap 16 is formed between the peripheral surface 10b. The pad 15 functions as an adapter for fitting an individual's breast or nipple to the milk pad 10 according to its size, and in the state where the nipple is sucked into the milking head 4, By sucking the entire pad 15 into the milking head 4, not only the teat but also the breast that is in close contact with the pad 15 can be sucked into the milking head 4 over a wide range. Therefore, the user can perform milking without feeling pain by attaching the pad 15 to the breast.

また、このパッド１５には、他所に比べて肉厚となる厚肉部１７が設けられており、この厚肉部１７は、例えば図５（ａ）に示すように、乳当て部１０の内部空間が常圧の状態では、パッド１５の外周面（反乳当て面）１５ａ側に突出している。乳当て部１０の内部空間が負圧状態になると、パッド１５が搾乳ヘッド４内に吸引され、外周面１５ａに突出した厚肉部１７が乳当て部１０の内周面１０ｂに当接する。この状態から、さらに隙間１６の分だけパッド１５が搾乳ヘッド４内に向けて引張られると、図５（ｂ）に示すように、パッド１５の外周面１５ａと乳当て部１０の内周面１０ｂとが密着すると共に、厚肉部１７は、パッド１５内部に押し込まれてパッド１５の内周面（乳当て面）１５ｂ側に突出する。このように、パッド１５の***への装着時にはパッド１５の内周面１５ｂが平滑となるので、使用者が違和感を感じることなくパッド１５を***に装着することができる。また、乳当て部１０の内部空間を負圧にした状態では、***に密着したパッド１５の内周面（乳当て面）１５ｂ側に厚肉部１７が突出するので***が刺激される。従って、乳当て部１０内の圧力状態を、常圧と負圧とに交互に切換えることで一種のマッサージ効果が得られ、より効果的に搾乳を行うことができる。なお、厚肉部１７は、この実施形態では、パッド１５の円周方向に亘って複数箇所設けられているが、特にこれに限られず、例えば、パッド１５の全周に亘って厚肉部１７を環状に設けることもできる。   Further, the pad 15 is provided with a thick portion 17 which is thicker than other portions. The thick portion 17 is formed inside the milk pad 10 as shown in FIG. 5A, for example. In a state where the space is at normal pressure, the pad 15 protrudes toward the outer peripheral surface (anti-milking surface) 15a side. When the internal space of the milk pad 10 is in a negative pressure state, the pad 15 is sucked into the milking head 4, and the thick part 17 protruding from the outer peripheral surface 15 a comes into contact with the inner peripheral surface 10 b of the milk pad 10. From this state, when the pad 15 is further pulled toward the milking head 4 by the gap 16, the outer peripheral surface 15a of the pad 15 and the inner peripheral surface 10b of the milk pad 10 are shown in FIG. And the thick wall portion 17 is pushed into the pad 15 and protrudes toward the inner peripheral surface (milk bearing surface) 15b of the pad 15. Thus, since the inner peripheral surface 15b of the pad 15 is smooth when the pad 15 is mounted on the breast, the pad 15 can be mounted on the breast without the user feeling uncomfortable. Further, in a state where the internal space of the breast pad 10 is set to a negative pressure, the breast part is stimulated because the thick part 17 protrudes toward the inner peripheral surface (milk pad surface) 15b side of the pad 15 in close contact with the breast. Therefore, a kind of massage effect can be obtained by alternately switching the pressure state in the milk pad 10 between normal pressure and negative pressure, and milking can be performed more effectively. In this embodiment, the thick portion 17 is provided at a plurality of locations along the circumferential direction of the pad 15, but is not particularly limited thereto. For example, the thick portion 17 is provided over the entire circumference of the pad 15. Can also be provided in an annular shape.

上蓋部１１は、その下端部１１ａと基部９の上開口端９ａとの間に仕切り膜８を挟んだ状態で、下端部１１ａを上開口端９ａに嵌め合わせることで基部９に固定される。上蓋部１１の頂部には、反ボトル３側に向けて上開口部１９が形成されており、この上開口部１９にはチューブ５を介してゴム球６が取り付けられる。なお、上蓋部１１は、この実施形態では、頂部を外径側にずらした略ドーム形状を成しているが、例えば、頂部が中心に位置する半球状を成すものでもよく、この他にも種々の形状を採ることができる。   The upper lid portion 11 is fixed to the base portion 9 by fitting the lower end portion 11a to the upper opening end 9a with the partition film 8 sandwiched between the lower end portion 11a and the upper opening end 9a of the base portion 9. An upper opening 19 is formed on the top of the upper lid 11 toward the side opposite to the bottle 3, and a rubber ball 6 is attached to the upper opening 19 via a tube 5. In this embodiment, the upper lid portion 11 has a substantially dome shape in which the top portion is shifted to the outer diameter side. For example, the upper lid portion 11 may have a hemispherical shape with the top portion positioned at the center. Various shapes can be taken.

仕切り膜８は、この実施形態では図１に示すように、有底円筒形状を成す薄膜状の弾性体であり、この仕切り膜８の材料には、例えば可撓性を有し、かつ無臭性のシリコンゴムあるいはポリプロピレン等が用いられる。仕切り膜８は、仕切り膜８の周縁に形成されたフランジ部１８を、基部９の上開口端９ａに嵌合させるとともに、チューブ５に連結された上蓋部１１と搾乳ヘッド４とで挟持することで搾乳ヘッド４内に固定される。これにより、搾乳ヘッド４内の空間は、乳当て部１０の内部空間を含む第１の空間２０と、チューブ５を介してゴム球６内の空間とのみ連通する第２の空間２１とに分割される。   In this embodiment, as shown in FIG. 1, the partition film 8 is a thin-film elastic body having a bottomed cylindrical shape. The material of the partition film 8 is, for example, flexible and odorless. Silicon rubber or polypropylene is used. The partition membrane 8 is configured to fit the flange portion 18 formed on the peripheral edge of the partition membrane 8 to the upper opening end 9a of the base portion 9, and to be sandwiched between the upper lid portion 11 connected to the tube 5 and the milking head 4. Is fixed in the milking head 4. Thereby, the space in the milking head 4 is divided into a first space 20 including the internal space of the milk pad 10 and a second space 21 communicating only with the space inside the rubber ball 6 via the tube 5. Is done.

搾乳ヘッド４には、第２の空間２１を、外部空間に対して開放あるいは閉鎖する開閉機構２２が設けられる。開閉機構２２は、この実施形態では、例えば図２に示すように、上蓋部１１の外周に、その外径側に向けて形成された側開口部２３と、側開口部２３に装着され、外部からの操作で弾性変形させることで第２の空間２１を外部に開放する弾性体２４とで構成される。弾性体２４は、例えば有底円筒形状を成し、その側面に貫通孔２５ａを形成したゴムキャップ２５で構成され、第２の空間２１と連通する孔２６を覆うように側開口部２３に取り付けられる。このゴムキャップ２５を側開口部２３に装着してゴムキャップ２５を内径側に向けて押した状態では、ゴムキャップ２５の内周と側開口部２３の外周との間にすき間が形成される（例えば、図２中１点鎖線の状態）。このすき間に面したゴムキャップ２５の貫通孔２５ａおよび孔２６を介して、第２の空間２１が外部空間に開放される。そのため、第２の空間２１内の気圧が外気圧より小さい場合には、第２の空間２１内に外気が流入する。また、開閉機構２２は、この実施形態で例示したものの他、例えば図示は省略するが、押しボタンと、ボタンに連動して開閉することで孔２６と連通する弁とで構成することもでき、あるいは、孔２６を備えた側開口部２３に回動自在に取付けられ、回動により外部と孔２６との連通状態（空気の出入量）を調整するカバーで構成することもできる。   The milking head 4 is provided with an opening / closing mechanism 22 that opens or closes the second space 21 with respect to the external space. In this embodiment, for example, as shown in FIG. 2, the opening / closing mechanism 22 is attached to the outer periphery of the upper lid 11, the side opening 23 formed toward the outer diameter side, and the side opening 23. It is comprised with the elastic body 24 which open | releases the 2nd space 21 outside by carrying out elastic deformation by operation from. The elastic body 24 is formed of, for example, a rubber cap 25 having a bottomed cylindrical shape and a through hole 25a formed on the side surface thereof, and is attached to the side opening 23 so as to cover the hole 26 communicating with the second space 21. It is done. When the rubber cap 25 is attached to the side opening 23 and the rubber cap 25 is pushed toward the inner diameter side, a gap is formed between the inner periphery of the rubber cap 25 and the outer periphery of the side opening 23 ( For example, the state of the one-dot chain line in FIG. The second space 21 is opened to the external space through the through hole 25a and the hole 26 of the rubber cap 25 facing the gap. Therefore, when the atmospheric pressure in the second space 21 is smaller than the external atmospheric pressure, the outside air flows into the second space 21. In addition to the example illustrated in this embodiment, the opening / closing mechanism 22 may be configured by, for example, a push button and a valve communicating with the hole 26 by opening / closing in conjunction with the button. Or it can also be comprised with the cover which is attached to the side opening part 23 provided with the hole 26 so that rotation is possible, and adjusts the communication state (inflow / outflow amount) of the exterior and the hole 26 by rotation.

次に、この搾乳器１の動作を説明する。   Next, the operation of the breast pump 1 will be described.

ゴムキャップ２５を押圧した状態でゴム球６を圧縮すると、ゴム球６から押し出された空気がチューブ５を介して仕切り膜８と上蓋部１１とで囲まれる第２の空間２１に流れ込み、さらに孔２６からゴムキャップ２５の貫通孔２５ａを介して外部に放出される。この状態では、仕切り膜８は、図１に示すようにニュートラルな位置（図１中実線の位置）にある。この後、ゴムキャップ２５の押圧状態を解放して、第２の空間２１と外部空間とを閉じた状態にしてからゴム球６の圧縮状態を解除する。これにより、第２の空間２１内の空気がゴム球６内の空間に流れ込み、第２の空間２１内が負圧状態になるとともに、仕切り膜８が第２の空間２１側に移動して（図１中２点鎖線の位置）第２の空間２１が収縮する。この結果、第１の空間２０が、第２の空間２１が収縮した分だけ膨張し、負圧状態に変化するため、予め乳当て部１０に押し当てた（乳当て部１０に取り付けたパッド１５に密着した）***が乳頭とともに第１の空間２０内に吸引され、母乳が搾乳される。   When the rubber ball 6 is compressed in a state where the rubber cap 25 is pressed, the air pushed out from the rubber ball 6 flows into the second space 21 surrounded by the partition film 8 and the upper lid portion 11 through the tube 5, and further the holes 26 is discharged to the outside through a through hole 25 a of the rubber cap 25. In this state, the partition film 8 is in a neutral position (a solid line position in FIG. 1) as shown in FIG. Thereafter, the pressed state of the rubber cap 25 is released to close the second space 21 and the external space, and then the compressed state of the rubber ball 6 is released. Thereby, the air in the second space 21 flows into the space in the rubber ball 6, the inside of the second space 21 is in a negative pressure state, and the partition film 8 moves to the second space 21 side ( The position of the two-dot chain line in FIG. 1) The second space 21 contracts. As a result, the first space 20 expands by the amount of contraction of the second space 21 and changes to a negative pressure state. Therefore, the first space 20 is pressed against the breast pad 10 in advance (the pad 15 attached to the milk pad 10). The breast (which is in close contact with the breast) is sucked into the first space 20 together with the nipple, and the milk is milked.

次に、ゴム球６を圧縮すると、ゴム球６から押し出された空気がチューブ５を介して第２の空間２１に流れ込み、仕切り膜８を第１の空間２０側に移動させる。これにより、圧縮された第１の空間２０内の空気が搾乳された母乳とともにボトル３と搾乳ヘッド４との間に介装された仕切り部材１２の逆止弁１３を押し開き、ボトル３に流れ込む。このようにして、ゴム球６の圧縮と圧縮解除を繰り返すことにより、搾乳された母乳がボトル３内に溜められる。なお、ボトル３に母乳とともに流れ込んだ空気は、仕切り部材１２の鍔部１２ａ下面に設けられた半径方向溝１４を通過し、さらにボトル３と搾乳ヘッド４とのねじ嵌合部のわずかなすき間を通過して外部空間へ排出される。そのため、ボトル３内は常に常圧に保たれる。また、ボトル３と搾乳ヘッド４とのねじ嵌合部のすき間は、気密性を持たないが、水密性を有する程度に空いている。そのため、ボトル３が横転しても、ボトル３内の母乳が前記ねじ嵌合部を通過して外部に流出することはない。   Next, when the rubber ball 6 is compressed, the air pushed out from the rubber ball 6 flows into the second space 21 via the tube 5 and moves the partition film 8 to the first space 20 side. Thereby, the check valve 13 of the partition member 12 interposed between the bottle 3 and the milking head 4 is pushed open together with the breast milk in which the compressed air in the first space 20 is milked, and flows into the bottle 3. . In this way, the milked milk is stored in the bottle 3 by repeating the compression and decompression of the rubber balls 6. The air flowing into the bottle 3 together with the breast milk passes through the radial groove 14 provided on the lower surface of the flange 12a of the partition member 12, and further passes through a slight gap in the screw fitting portion between the bottle 3 and the milking head 4. It passes through and is discharged to the outside space. Therefore, the inside of the bottle 3 is always kept at normal pressure. Moreover, although the clearance of the screw fitting part of the bottle 3 and the milking head 4 does not have airtightness, it is vacant to the extent that it has watertightness. Therefore, even if the bottle 3 rolls over, the breast milk in the bottle 3 does not flow out through the screw fitting portion.

このように、搾乳ヘッド４内に仕切り膜８を設けて、搾乳ヘッド４内の空間を、乳当て部１０を含む第１の空間２０と、チューブ５を介してゴム球６と連通する第２の空間２１とに分割することにより、乳当て部１０内の空間とゴム球６内の空間とが分離される。そのため、搾乳された母乳がゴム球６内に流れ込むのを防止することができ、母乳の衛生状態を清潔に保つことができる。また、乳当て部１０から第１の空間２０を介してボトル３に至る母乳の流入経路（空間）に、ゴム球６から第２の空間２１に向けて送り出される空気が流れ込むことがないので、ゴム球６内の空気を、搾乳された母乳に触れさせないようにすることができる。   As described above, the partition film 8 is provided in the milking head 4, and the space in the milking head 4 communicates with the first space 20 including the milk pad 10 and the rubber ball 6 through the tube 5. By dividing into the space 21, the space in the milk pad 10 and the space in the rubber ball 6 are separated. Therefore, milked milk can be prevented from flowing into the rubber ball 6, and the hygienic condition of the breast milk can be kept clean. Moreover, since the air sent out from the rubber ball 6 toward the second space 21 does not flow into the breast milk inflow path (space) from the milk pad 10 to the bottle 3 via the first space 20, It is possible to prevent the air in the rubber balls 6 from touching the milk that has been milked.

また、ボトル３と搾乳ヘッド４との間に仕切り部材１２を介装することにより、ボトル３内と搾乳ヘッド４内とが分断され、負圧を発生させる第１の空間のニュートラル状態における容積が減少する。これにより、第１の空間２０の元の容積（第２の空間２１と同じ圧力状態における容積）に対する膨張割合を高めて、第１の空間２０により大きな負圧を発生させることができる。さらには、第２の空間２１を外部空間に対して開放あるいは閉鎖する開閉機構２２を搾乳ヘッド４に設けているので、開閉機構２２とゴム球６を上述の順に操作することで第２の空間２１内を負圧状態にして、第１の空間２０の膨張容積を増加させることができる。また、第２の空間２１とゴム球６内を負圧状態にすることにより、わずかな力でゴム球６を圧縮することができるので、使用者の肉体的負担を軽減して搾乳を行うことができる。なお、この図示例では、搾乳ヘッド４の上蓋部１１に開閉機構２２を設けているが、この開閉機構２２は、第２の空間２１を外部空間に対して開放あるいは閉鎖を可能とする限り、例えばゴム球６とチューブ５との取付け部２７など、上蓋部１１に限ることなく他の部位にも設けることが可能である。   Moreover, by interposing the partition member 12 between the bottle 3 and the milking head 4, the inside of the bottle 3 and the inside of the milking head 4 are divided, and the volume in the neutral state of the first space that generates negative pressure is increased. Decrease. Thereby, the expansion ratio with respect to the original volume (the volume in the same pressure state as the 2nd space 21) of the 1st space 20 can be raised, and a big negative pressure can be generated in the 1st space 20. Furthermore, since the milking head 4 is provided with the opening / closing mechanism 22 that opens or closes the second space 21 with respect to the external space, the second space can be operated by operating the opening / closing mechanism 22 and the rubber ball 6 in the order described above. The inside of 21 can be made into a negative pressure state, and the expansion volume of the 1st space 20 can be increased. Moreover, since the rubber ball 6 can be compressed with a slight force by putting the second space 21 and the rubber ball 6 in a negative pressure state, milking is performed while reducing the physical burden on the user. Can do. In the illustrated example, the opening / closing mechanism 22 is provided in the upper lid portion 11 of the milking head 4. However, as long as the opening / closing mechanism 22 can open or close the second space 21 with respect to the external space, For example, the mounting portion 27 between the rubber ball 6 and the tube 5 can be provided not only on the upper lid portion 11 but also on other portions.

また、ゴム球６を圧縮して第２の空間２１内に空気を送り込むことで、仕切り膜８が第１の空間２０側に大きく膨らみ、第１の空間２０内の空気が仕切り部材１２側に押し込まれるとともに乳当て部１０側にも押し込まれる。これにより、乳当て部１０に押し当てた***が、乳当て部１０側に押し込まれた空気によって押される。このように、本発明によれば、搾乳中、***を吸引するとともに押すなどの刺激を繰り返し与えることができるので、非常に高いマッサージ効果を得ることができ、効率よく搾乳を行うことが可能となる。   Further, by compressing the rubber ball 6 and sending air into the second space 21, the partition film 8 is greatly expanded toward the first space 20, and the air within the first space 20 is moved toward the partition member 12. While being pushed in, it is also pushed into the milk pad 10 side. Thereby, the breast pressed against the breast pad 10 is pushed by the air pushed toward the breast pad 10 side. Thus, according to the present invention, during milking, it is possible to repeatedly give a stimulus such as sucking and pushing the breast, so that a very high massage effect can be obtained and milking can be performed efficiently. Become.

以上、本発明の一実施形態を説明したが、本発明に係る搾乳器は上記実施形態に限られるものではなく、例えば図２に示すように、図１に示す仕切り膜８を、蛇腹部を備えた中空状の伸縮体２８とすることもできる。この伸縮体２８は、蛇腹部に沿った方向に伸縮動作を行うことによって、搾乳ヘッド４内に負圧を発生させるものである。したがって、この伸縮体２８の材料、厚さ、内部容積等を、搾乳ヘッド４内に発生させた負圧が伸縮体２８の伸縮動作を妨げない程度に適宜定めるのが好ましい。また、排出装置７としては、この他にも、例えば動力源は問わないが、シリンダを構成部品として排出装置７を構成することもでき、その場合には、図示は省略するが、シリンダのピストン面が第２の空間を仕切る一平面を形成する。   As mentioned above, although one Embodiment of this invention was described, the breast pump which concerns on this invention is not restricted to the said embodiment, For example, as shown in FIG. 2, the partition film | membrane 8 shown in FIG. It can also be set as the hollow expansion-contraction body 28 provided. The stretchable body 28 generates a negative pressure in the milking head 4 by performing a stretching operation in a direction along the bellows portion. Therefore, it is preferable to appropriately determine the material, thickness, internal volume, and the like of the stretchable body 28 to such an extent that the negative pressure generated in the milking head 4 does not interfere with the stretching operation of the stretchable body 28. In addition to the above, for example, the power source may be used as the discharge device 7, but the discharge device 7 may be configured by using a cylinder as a component. The plane forms a plane that partitions the second space.

図３は、本発明の第２の実施形態に係る搾乳器３１の縦断面図である。この実施形態に係る搾乳器３１は、第１の実施形態では、チューブ５およびチューブ５を介して第２の空間２１に取り付けられたゴム球６とで排出装置７を構成したのに対し、電源３２と、電源３２からの電力の供給により駆動するモータ３３と、モータ３３の駆動に伴い拡縮するポンプ空間３４とを備えた電動式のポンプ３５で排出装置７を構成する点で第１の実施形態と異なる。このうちポンプ空間３４は、図示は省略するが（詳細な構造は、例えば特開２００４−０００４８６号公報を参照）、モータ３３の回転軸に連結されてモータ３３の駆動に伴って振動するダイアフラムと、ダイアフラムと対向してポンプ３５内に配設されるダイアフラムプレートとの間に形成され、例えばダイアフラムプレートには、ポンプ空間３４を膨張させた状態では第２の空間２１からポンプ空間３４に空気を引き込むための逆止弁と、ポンプ空間３４を収縮させた状態ではポンプ空間３４内の空気を外部に放出するための逆止弁がそれぞれ設けられている。なお図３中、３６は押しボタンを、３７は押しボタン３６を押すことで第２の空間２１を外部に対して開放する開閉機構を、３８はモータ３３のオン・オフ状態を切換える切換スイッチをそれぞれ示す。   FIG. 3 is a longitudinal sectional view of a breast pump 31 according to the second embodiment of the present invention. In the first embodiment, the milking device 31 according to this embodiment includes the tube 5 and the rubber ball 6 attached to the second space 21 via the tube 5. First, the discharge device 7 is constituted by an electric pump 35 including a motor 32 driven by the supply of power from the power source 32 and a pump space 34 that expands and contracts as the motor 33 is driven. Different from form. Of these, the pump space 34 is not shown (for details, see, for example, JP-A-2004-048686), but is connected to the rotating shaft of the motor 33 and vibrates as the motor 33 is driven. The diaphragm plate is disposed between the diaphragm plate and the diaphragm plate disposed in the pump 35. For example, in the diaphragm plate, air is supplied from the second space 21 to the pump space 34 when the pump space 34 is expanded. A check valve for drawing in and a check valve for releasing the air in the pump space 34 to the outside when the pump space 34 is contracted are provided. In FIG. 3, reference numeral 36 denotes a push button, 37 denotes an opening / closing mechanism that opens the second space 21 to the outside by pressing the push button 36, and 38 denotes a change-over switch that switches the on / off state of the motor 33. Each is shown.

次に、この搾乳器３１の動作を説明する。   Next, the operation of the breast pump 31 will be described.

切換スイッチ３８を操作して電源３２とモータ３３を電通状態にすることで、モータ３３を駆動させる。このモータ３３の駆動に伴い、モータ３３の回転軸に連結されたダイアフラムが振動し、ダイアフラムとダイアフラムプレートとの間に形成されるポンプ空間３４を拡縮させる。ポンプ空間３４を膨張させた時にはダイアフラムプレートに設けられた逆止弁により、第２の空間２１からポンプ空間３４に空気が引き込まれ、収縮させた時には第２の空間２１からポンプ空間３４に空気を引き込む逆止弁とは別の逆止弁により、ポンプ空間３４内の空気が外部に放出される。これにより、第２の空間２１内の空気がポンプ空間３４を介して連続的に外部に放出され、第２の空間２１内が負圧状態になるとともに、仕切り膜８が第２の空間２１側に移動して（図３中２点鎖線の位置）第２の空間２１が収縮する。この結果、第１の空間２０が、第２の空間２１が収縮した分だけ膨張し、負圧状態に変化するため、予め乳当て部１０に押し当てた（乳当て部１０に取り付けたパッド１５に密着した）***が乳頭とともに第１の空間２０内に吸引され、母乳が搾乳される。   The motor 33 is driven by operating the changeover switch 38 to bring the power source 32 and the motor 33 into the conductive state. As the motor 33 is driven, the diaphragm connected to the rotation shaft of the motor 33 vibrates, and the pump space 34 formed between the diaphragm and the diaphragm plate is expanded and contracted. When the pump space 34 is expanded, air is drawn into the pump space 34 from the second space 21 by a check valve provided in the diaphragm plate, and when the pump space 34 is contracted, air is drawn from the second space 21 into the pump space 34. The air in the pump space 34 is discharged to the outside by a check valve different from the check valve to be drawn. As a result, the air in the second space 21 is continuously discharged to the outside through the pump space 34, the inside of the second space 21 is in a negative pressure state, and the partition film 8 is on the second space 21 side. (The position of the two-dot chain line in FIG. 3), the second space 21 contracts. As a result, the first space 20 expands by the amount of contraction of the second space 21 and changes to a negative pressure state. Therefore, the first space 20 is pressed against the breast pad 10 in advance (the pad 15 attached to the milk pad 10). The breast (which is in close contact with the breast) is sucked into the first space 20 together with the nipple, and the milk is milked.

押しボタン３６を押して（開閉機構３７を手動で操作して）第２の空間２１と外部とを連通させると、常圧の外気が負圧状態の第２の空間２１に流れ込み、仕切り膜８を第１の空間２０側に移動させる。これにより、圧縮された第１の空間２０内の空気が、搾乳された母乳とともにボトル３と搾乳ヘッド４との間に介装された仕切り部材１２の逆止弁１３を押し開き、ボトル３に流れ込む。このようにして、第２の空間２１内を繰り返し負圧状態と常圧状態とに切換えることにより、搾乳された母乳がボトル３内に溜められる。   When the push button 36 is pressed (manually operating the opening / closing mechanism 37) to connect the second space 21 and the outside, normal pressure outside air flows into the second space 21 in the negative pressure state, and the partition membrane 8 is Move to the first space 20 side. Thereby, the compressed air in the first space 20 pushes open the check valve 13 of the partition member 12 interposed between the bottle 3 and the milking head 4 together with the milk that has been milked. Flows in. In this way, the milky milk is stored in the bottle 3 by repeatedly switching the second space 21 between the negative pressure state and the normal pressure state.

上述のように、電動式のポンプ３５を用いた場合には、排気動作を行うのにスイッチング操作で済むため、ゴム球６を圧縮させる等、使用者の肉体的負担を軽減して容易に搾乳を行うことができる。また、第１の実施形態と同様に、乳当て部１０内の空間（第１の空間２０）と、外部と連通可能なポンプ３５内の空間（第２の空間２１）とを仕切り膜８を介して分離しているので、搾乳された母乳がポンプ３５側に流れ込むのを防止して、あるいはポンプ３５内の空気や外気を、搾乳された母乳に触れさせないようにして、より清潔な状態で搾乳を行うことができる。   As described above, when the electric pump 35 is used, since a switching operation is sufficient to perform the exhaust operation, the rubber ball 6 is compressed, so that the physical burden on the user is reduced and milking is easily performed. It can be performed. Further, similarly to the first embodiment, the partition film 8 is formed by dividing the space in the breast pad 10 (first space 20) and the space in the pump 35 (second space 21) that can communicate with the outside. Therefore, it is possible to prevent the milked milk from flowing into the pump 35 or prevent the air and the outside air in the pump 35 from touching the milked milk in a cleaner state. Milking can be performed.

また、この実施形態では、使用者が開閉機構３７を操作する（押しボタン３６を押す）ことにより第２の空間２１を常圧に復帰させるようにしているが、第１の空間２０が所定の圧力まで低下すると、自動的に第２の空間２１と外部とを連通状態にして第２の空間２１の圧力を常圧に復帰させる、あるいは所定の圧力まで上昇させる圧力調整手段３９を設けることも可能である。圧力調整手段３９は、第１の空間２０の圧力状態を検知する検知部４０と、この検知部４０の検知結果に基づいて第２の空間２１と外部との連通状態を切換える開閉機構４１とで構成される。検知部４０は、例えば搾乳ヘッド４内の仕切り膜８の位置あるいは変位を検出することで、間接的に第１の空間２０の圧力状態を検知するものでもよく、この実施形態では例えば図４に示すように、仕切り膜８と接触させることで仕切り膜８の位置あるいは変位を検知する接触式の検知部材４２で構成している。この場合には、この検知部材４２と搾乳ヘッド４内の所定位置（図４中２点鎖線の位置）まで移動した仕切り膜８との接触時、検知部材４２と機械的あるいは電気的にリンクさせた開閉機構４１により自動的に第２の空間２１と外部とが連通し、検知部材４２と仕切り膜８との非接触時、開閉機構４１により自動的に第２の空間２１と外部とが閉じられる。なお、この図示例では、検知部４０を、仕切り膜８の位置を検知する接触式の検知部材４２としたが、これに限らず、例えば図示は省略するが、仕切り膜８の位置あるいは変位を非接触で検知する非接触式の検知部（変位センサを含む）とすることもできる。また、第１の空間２０内の圧力状態を直接検知する検知部（圧力センサを含む）を用いることで、第１の空間２０が所定の圧力値を下回ったことを検知するようにしてもよい。   In this embodiment, the user operates the opening / closing mechanism 37 (presses the push button 36) to return the second space 21 to normal pressure. However, the first space 20 has a predetermined value. When the pressure is reduced to a pressure, pressure adjusting means 39 may be provided to automatically bring the second space 21 into communication with the outside so that the pressure in the second space 21 is restored to the normal pressure or increased to a predetermined pressure. Is possible. The pressure adjustment means 39 includes a detection unit 40 that detects the pressure state of the first space 20, and an opening / closing mechanism 41 that switches the communication state between the second space 21 and the outside based on the detection result of the detection unit 40. Composed. For example, the detection unit 40 may detect the pressure state of the first space 20 indirectly by detecting the position or displacement of the partition film 8 in the milking head 4. In this embodiment, for example, FIG. As shown, the contact type detection member 42 detects the position or displacement of the partition film 8 by being brought into contact with the partition film 8. In this case, the detection member 42 is mechanically or electrically linked to the detection member 42 at the time of contact between the detection member 42 and the partition film 8 moved to a predetermined position in the milking head 4 (a position indicated by a two-dot chain line in FIG. 4). The opening / closing mechanism 41 automatically connects the second space 21 and the outside, and when the detection member 42 and the partition film 8 are not in contact with each other, the opening / closing mechanism 41 automatically closes the second space 21 and the outside. It is done. In the illustrated example, the detection unit 40 is a contact-type detection member 42 that detects the position of the partition film 8. However, the present invention is not limited to this, and for example, the position or displacement of the partition film 8 is not illustrated. It can also be set as the non-contact-type detection part (a displacement sensor is included) detected without contact. Further, by using a detection unit (including a pressure sensor) that directly detects the pressure state in the first space 20, it may be detected that the first space 20 has fallen below a predetermined pressure value. .

上述のように、圧力調整手段３９によれば、第１の空間２０の圧力状態を一定のリズムで上下動させるいわゆる「脈動効果」が得られるので、***を一定のリズムで効果的にマッサージして母乳を出やすくすることができる。また、第２の空間２１内の圧力状態に応じて、第２の空間の外部に対する開放・閉鎖状態が自動的に切換えられるので、手動式の開閉機構３７を省略することができ、より容易に搾乳を行うことが可能となる。もちろん、緊急回避手段として、手動式の開閉機構３７を圧力調整手段３９とは別に設けるようにしても構わない。   As described above, according to the pressure adjusting means 39, a so-called “pulsation effect” that moves the pressure state of the first space 20 up and down at a constant rhythm is obtained, so that the breast is effectively massaged at a constant rhythm. Can make breast milk easier. In addition, since the open / closed state of the second space with respect to the outside is automatically switched according to the pressure state in the second space 21, the manual opening / closing mechanism 37 can be omitted, and more easily. Milking can be performed. Of course, as an emergency avoiding means, a manual opening / closing mechanism 37 may be provided separately from the pressure adjusting means 39.

本発明の第１の実施形態に係る搾乳器の縦断面図である。It is a longitudinal cross-sectional view of the breast pump which concerns on the 1st Embodiment of this invention. 第１の実施形態の変形例を示す縦断面図である。It is a longitudinal cross-sectional view which shows the modification of 1st Embodiment. 第２の実施形態に係る搾乳器の縦断面図である。It is a longitudinal cross-sectional view of the breast pump which concerns on 2nd Embodiment. 第２の実施形態の変形例を示す縦断面図である。It is a longitudinal cross-sectional view which shows the modification of 2nd Embodiment. 乳当て部周辺の拡大断面図である。It is an expanded sectional view around a milk pad. 従来の搾乳器を示す縦断面図である。It is a longitudinal cross-sectional view which shows the conventional milking machine.

符号の説明Explanation of symbols

１ 搾乳器
３ ボトル
４ 搾乳ヘッド
５ チューブ
６ ゴム球
７ 排出装置
８ 仕切り膜
１０ 乳当て部
１１ 上蓋部
１２ 仕切り部材
１３ 逆止弁
１５ パッド
１７ 厚肉部
２０ 第１の空間
２１ 第２の空間
２２ 開閉機構
２３ 側開口部
２４ 弾性体
２５ ゴムキャップ
２５ａ 貫通孔
２６ 孔
２８ 伸縮体
３１ 搾乳器
３２ 電源
３３ モータ
３４ ポンプ空間
３５ 電動式のポンプ
３６ 押しボタン
３７ 開閉機構
３８ 切換スイッチ
３９ 圧力調整手段
４０ 検知部
４１ 開閉機構
４２ 検知部材
５１ 搾乳器
５２ ボトル
５３ 仕切り部材
５４ 搾乳ヘッド
５５ ゴム球
５６ 乳当て部
５７ 逆止弁 DESCRIPTION OF SYMBOLS 1 Milking machine 3 Bottle 4 Milking head 5 Tube 6 Rubber ball 7 Discharge device 8 Partition film 10 Milking part 11 Upper lid part 12 Partition member 13 Check valve 15 Pad 17 Thick part 20 First space 21 Second space 22 Opening and closing mechanism 23 side opening 24 elastic body 25 rubber cap 25a through hole 26 hole 28 telescopic body 31 breast pump 32 power supply 33 motor 34 pump space 35 electric pump 36 push button 37 opening and closing mechanism 38 changeover switch 39 pressure adjusting means 40 detection Portion 41 Opening / closing mechanism 42 Detection member 51 Milking device 52 Bottle 53 Partition member 54 Milking head 55 Rubber ball 56 Milk pad 57 Check valve

Claims (4)

ボトルと、ボトルの開口部に取り付けられ、かつラッパ状に拡開した乳当て部を有する搾乳ヘッドと、搾乳ヘッドに取り付けられ、乳当て部の内部に負圧を発生させる負圧発生手段とを備えた搾乳器において、
負圧発生手段を、搾乳ヘッド内に配設される伸縮可能な仕切り膜と、仕切り膜で分割された搾乳ヘッド内の空間のうち、乳当て部の開口部およびボトルとの連通口を有する第１の空間と分離して形成される第２の空間に向けて圧縮により流体を吐出し、かつ圧縮後の弾性復元により第２の空間に満たされた流体を吸引する中空弾性体とで構成し、
外部からの操作で、中空弾性体の内部と連通する第２の空間を外部に対して開放あるいは閉鎖する開閉機構をさらに備えたことを特徴とする搾乳器。 A milking head having a bottle, a milking part attached to the opening of the bottle and expanding in a trumpet shape, and negative pressure generating means attached to the milking head and generating a negative pressure inside the milking part In the breast pump provided,
The negative pressure generating means includes a stretchable partition membrane disposed in the milking head, and a first opening having a communicating port with the opening of the milk pad and the bottle in the space in the milking head divided by the partition membrane. And a hollow elastic body that discharges fluid by compression toward a second space formed separately from the first space and sucks the fluid filled in the second space by elastic recovery after compression. ,
A breast pump, further comprising an opening / closing mechanism that opens or closes the second space communicating with the inside of the hollow elastic body to the outside by an operation from the outside. 開閉機構を構成する弾性体を外部からの操作で弾性変形させることにより、第２の空間を外部に開放する請求項１記載の搾乳器。   The breast pump according to claim 1, wherein the second space is opened to the outside by elastically deforming an elastic body constituting the opening / closing mechanism by an operation from outside. 仕切り膜が、薄膜状の弾性体である請求項１記載の搾乳器。   The breast pump according to claim 1, wherein the partition membrane is a thin-film elastic body. 仕切り膜が、蛇腹部を備えた中空状の伸縮体である請求項１記載の搾乳器。   The breast pump according to claim 1, wherein the partition membrane is a hollow stretchable body having a bellows portion.
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JP2004147781A (en) * 2002-10-29 2004-05-27 Pigeon Corp Valve device, valve device for pressure regulation, and manual milking device having valve device for pressure regulation

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JPH01190364A (en) * 1988-01-25 1989-07-31 Pigeon Corp Pressure release structure of milking device
JPH039764A (en) * 1989-03-29 1991-01-17 Pigeon Corp Breast pump for mother's milk and pressure control mechanism thereof
US5885246A (en) * 1995-02-16 1999-03-23 Cannon Rubber Limited Breast pump insert
US5749850A (en) * 1995-03-24 1998-05-12 Cannon Rubber Limited Breast pump
CA2240268A1 (en) * 1998-06-10 1999-12-10 Deborah M. Mackenzie Breast pump assembly
WO2003000313A1 (en) * 2001-06-22 2003-01-03 Medela Holding Ag Breastshield with multi-pressure and expansible chamber construction, related breastpump and method
JP2005502397A (en) * 2001-06-22 2005-01-27 メデラ ホールディング アクチェンゲゼルシャフト Breast shield with multi-pressure and inflatable chamber structure, associated breast pump and method
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JP2004147781A (en) * 2002-10-29 2004-05-27 Pigeon Corp Valve device, valve device for pressure regulation, and manual milking device having valve device for pressure regulation

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