JP3231899U - Soft resin products with manual air pump - Google Patents

Soft resin products with manual air pump Download PDF

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JP3231899U
JP3231899U JP2021000589U JP2021000589U JP3231899U JP 3231899 U JP3231899 U JP 3231899U JP 2021000589 U JP2021000589 U JP 2021000589U JP 2021000589 U JP2021000589 U JP 2021000589U JP 3231899 U JP3231899 U JP 3231899U
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soft resin
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冨士夫 日置
冨士夫 日置
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株式会社ヒオキ
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Abstract

【課題】手動式空気ポンプの手押し動作時においても、逆止弁機構が常に正常な動作を維持できる手動式空気ポンプ付き軟質樹脂製品を提供する。【解決手段】手動式空気ポンプ付き軟質樹脂製品は、軟質樹脂製品の中空本体と、空気ポンプと、当該空気ポンプの空気吐出口２５に連結された逆止弁機構３０とを備える。逆止弁機構３０は、空気吐出口２５に連結される基端部３０ａと、先端部３０ｂと、前記両部の間に位置する連絡部３０ｃとを有する。先端部３０ｂには開閉弁３２が設けられている。連絡部３０ｃには、手動式空気ポンプの空気吐出口２５から吐出された空気を開閉弁３２に導く連通路を常時確保するための連通路確保材としての硬質な導管３４が設けられている。【選択図】図５PROBLEM TO BE SOLVED: To provide a soft resin product with a manual air pump in which a check valve mechanism can always maintain a normal operation even when a manual air pump is manually pushed. A soft resin product with a manual air pump includes a hollow body of the soft resin product, an air pump, and a check valve mechanism 30 connected to an air discharge port 25 of the air pump. The check valve mechanism 30 has a base end portion 30a connected to the air discharge port 25, a tip end portion 30b, and a connecting portion 30c located between the two portions. An on-off valve 32 is provided at the tip portion 30b. The communication unit 30c is provided with a hard conduit 34 as a passage securing material for constantly securing a passage for guiding the air discharged from the air discharge port 25 of the manual air pump to the on-off valve 32. [Selection diagram] Fig. 5

Description

本考案は、手動式空気ポンプ付き軟質樹脂製品に関し、特に、手動式空気ポンプの空気吐出口の側に逆止弁機構を備えた手動式空気ポンプ付き軟質樹脂製品に関する。 The present invention relates to a soft resin product with a manual air pump, and more particularly to a soft resin product with a manual air pump provided with a check valve mechanism on the side of the air discharge port of the manual air pump.

ビニール製の浮き輪や幼児用プール等は、内部に空気を充填することで使用可能となる軟質樹脂製品であり、この種の軟質樹脂製品にあっては、例えば図１に示すように、軟質樹脂製品１０を構成する中空本体１１の上に、同じく軟質樹脂製の手動式空気ポンプ２０を一体的に取り付けたものがある。使用者によって手動式空気ポンプ２０が手押し動作されるに伴い、空気吸入口２４から該ポンプ内に取り入れられた空気（外気）が、空気吐出口２５を介して軟質樹脂製品の中空本体１１内に強制充填される。そして、かかる空気の強制充填を可能とするために、少なくとも手動式空気ポンプ２０の空気吐出口２５には、逆止弁機構３０が設けられている。 Vinyl floats, infant pools, etc. are soft resin products that can be used by filling the inside with air. In this type of soft resin products, for example, as shown in FIG. 1, the soft resin products are used. A manual air pump 20 also made of soft resin is integrally mounted on the hollow main body 11 constituting the resin product 10. As the manual air pump 20 is manually pushed by the user, the air (outside air) taken into the pump from the air suction port 24 enters the hollow body 11 of the soft resin product via the air discharge port 25. It is forcibly filled. A check valve mechanism 30 is provided at least at the air discharge port 25 of the manual air pump 20 in order to enable forced filling of such air.

図２（及び図１）は、透明な軟質樹脂製の手動式空気ポンプ２０の空気吐出口２５側に設けられた逆止弁機構３０の従来例を示す。各図が示唆するように、逆止弁機構３０は、主として２枚の透明な軟質樹脂シート（３１ａ，３１ｂ）をラミネートすると共に部分的に接着（又は溶着）することで構成されている。逆止弁機構の基端部３０ａ（図２では上端部）は、手動式空気ポンプ２０の空気吐出口２５に連結される（図２（Ａ）参照）。逆止弁機構の先端部３０ｂ（図２では下端部）は、当該先端部に用いられている２枚の軟質樹脂シート（３１ａ，３１ｂ）が互いに離間及び密着可能となっていることで、両軟質樹脂シート（３１ａ，３１ｂ）の離間又は密着に応じて開閉される開閉弁３２を構成している（図２（Ｃ）参照）。逆止弁機構３０の基端部３０ａと先端部３０ｂとの間は、両部をつなぐ連絡部３０ｃとなっており、この連絡部３０ｃの幅方向中央には、２枚の軟質樹脂シート（３１ａ，３１ｂ）の一部を意図的に離間させ非接着とすることで形成される縦長な連通路５１が確保されている（図２（Ｂ）参照）。この連通路５１は、手動式空気ポンプの空気吐出口２５からの空気を先端部３０ｂ（開閉弁３２）に導くものである。
なお、図２（Ｂ）及び（Ｃ）では、軟質樹脂シート（３１ａ，３１ｂ）の厚さが実際よりもデフォルメして描かれているが、樹脂シートの実際の厚さは１ｍｍにも満たない。 FIG. 2 (and FIG. 1) show a conventional example of a check valve mechanism 30 provided on the air discharge port 25 side of a manual air pump 20 made of a transparent soft resin. As each figure suggests, the check valve mechanism 30 is mainly composed of two transparent soft resin sheets (31a, 31b) laminated and partially bonded (or welded). The base end portion 30a (upper end portion in FIG. 2) of the check valve mechanism is connected to the air discharge port 25 of the manual air pump 20 (see FIG. 2A). The tip 30b (lower end in FIG. 2) of the check valve mechanism has two soft resin sheets (31a, 31b) used for the tip so that they can be separated from each other and adhere to each other. It constitutes an on-off valve 32 that opens and closes according to the separation or close contact of the soft resin sheets (31a, 31b) (see FIG. 2C). Between the base end portion 30a and the tip end portion 30b of the check valve mechanism 30, there is a connecting portion 30c that connects both portions, and two soft resin sheets (31a) are located at the center of the connecting portion 30c in the width direction. , 31b) is intentionally separated and non-adhesive to secure a vertically long communication passage 51 (see FIG. 2B). The communication passage 51 guides the air from the air discharge port 25 of the manual air pump to the tip portion 30b (opening / closing valve 32).
In addition, in FIGS. 2 (B) and 2 (C), the thickness of the soft resin sheet (31a, 31b) is drawn more deformed than the actual thickness, but the actual thickness of the resin sheet is less than 1 mm. ..

空気入れ時には、手動式空気ポンプ２０を手で上から押し潰す（図１（Ｂ）参照）、その後、潰れた空気ポンプ２０が弾性的に形状復元する、再び空気ポンプ２０を上から押し潰す、といった手押し動作を繰り返すことにより、軟質樹脂製品１０の中空本体１１内に空気が徐々に充填される。その際、逆止弁機構３０では、空気ポンプ２０が押されたときには、空気吐出口２５から連通路５１を経て先端部（開閉弁３２）に達した加圧空気が、相互密着状態（即ち閉状態）にあった軟質樹脂シート（３１ａ，３１ｂ）を離間させ、当該開閉弁３２を開状態とする。また、潰れた空気ポンプ２０が弾性的に形状復元するときには、空気吐出口２５とつながった連通路５１が負圧状態となり、相互離間状態（即ち開状態）にある軟質樹脂シート（３１ａ，３１ｂ）を密着させ、当該開閉弁３２を閉状態とする。 At the time of inflating, the manual air pump 20 is crushed by hand from above (see FIG. 1 (B)), and then the crushed air pump 20 elastically restores its shape, and the air pump 20 is crushed again from above. By repeating the hand-pushing operation such as, air is gradually filled in the hollow main body 11 of the soft resin product 10. At that time, in the check valve mechanism 30, when the air pump 20 is pushed, the pressurized air that has reached the tip (opening / closing valve 32) from the air discharge port 25 through the communication passage 51 is in close contact with each other (that is, closed). The soft resin sheets (31a, 31b) that were in the state) are separated from each other, and the on-off valve 32 is opened. Further, when the crushed air pump 20 elastically restores its shape, the soft resin sheets (31a, 31b) in which the communication passage 51 connected to the air discharge port 25 is in a negative pressure state and is in a mutually separated state (that is, an open state). Closed to close the on-off valve 32.

（特になし）(nothing special)

しかしながら、上記従来の逆止弁機構では、縦長な連通路５１を形作っている２枚の樹脂シート（３１ａ，３１ｂ）が軟質であるために、空気ポンプ２０を上から押し潰すべく押圧力を加えたとき、その押圧力によって連通路５１も一緒に押し潰されてしまい、連通路５１の少なくとも一部が実質的に閉塞されるおそれがある。連通路５１の実質的閉塞は逆止弁機構３０の正常な動作を阻害して、円滑な空気充填に支障をきたす。なお、このような連通路５１の実質的閉塞は、とりわけ空気ポンプ２０で軟質樹脂製品１０に空気の充填を開始した初期段階で起こりやすい。というのも、かかる初期段階では、一般に軟質樹脂製品１０がペチャンコに収縮した状態にあり、空気ポンプ２０を上から押し潰す押圧力によって、軟質樹脂製品１０の内部に配置されている逆止弁機構３０も、軟質樹脂製品が置かれている面（例えば床面や机面）に対して強く押し付けられやすいからである。 However, in the conventional check valve mechanism, since the two resin sheets (31a and 31b) forming the vertically long passage 51 are soft, a pressing force is applied to crush the air pump 20 from above. At that time, the pressing force may crush the communication passage 51 together, and at least a part of the communication passage 51 may be substantially blocked. Substantial blockage of the communication passage 51 hinders the normal operation of the check valve mechanism 30, and hinders smooth air filling. It should be noted that such a substantial blockage of the communication passage 51 is likely to occur particularly at the initial stage when the soft resin product 10 is filled with air by the air pump 20. This is because, in such an initial stage, the soft resin product 10 is generally in a state of being contracted to a pechanco, and a check valve mechanism arranged inside the soft resin product 10 by a pressing force that crushes the air pump 20 from above. This is also because 30 is likely to be strongly pressed against the surface on which the soft resin product is placed (for example, the floor surface or the desk surface).

本考案の目的は、手動式空気ポンプの手押し動作時においても、逆止弁機構が常に正常な動作を維持できる手動式空気ポンプ付き軟質樹脂製品を提供することにある。 An object of the present invention is to provide a soft resin product with a manual air pump in which the check valve mechanism can always maintain a normal operation even during a manual push operation of the manual air pump.

本考案は、
内部に空気を充填することで使用可能となる軟質樹脂製品の中空本体と、
前記中空本体に一体的に取り付けられた手動式空気ポンプと、
前記軟質樹脂製品の中空本体の内部に配置されると共に、前記手動式空気ポンプの空気吐出口に連結された逆止弁機構と、
を備えてなる手動式空気ポンプ付き軟質樹脂製品において、
前記逆止弁機構は、互いに密着可能な２枚の樹脂シートで構成されると共に、当該逆止弁機構は、前記手動式空気ポンプの空気吐出口に連結される基端部と、前記基端部とは反対側の端部である先端部と、前記基端部と前記先端部との間に位置する連絡部とを有し、
前記先端部には、前記２枚の樹脂シートの離間又は密着に応じて開閉される開閉弁が設けられており、
少なくとも前記連絡部には、前記２枚の樹脂シートの間に挿入配置された連通路確保材が設けられ、この連通路確保材の内部および／または隣接する外側には、前記手動式空気ポンプの空気吐出口から吐出された空気を前記開閉弁に導くための連通路が確保されていることを特徴とする、手動式空気ポンプ付き軟質樹脂製品である。 The present invention
A hollow body of soft resin product that can be used by filling the inside with air,
A manual air pump integrally attached to the hollow body,
A check valve mechanism that is arranged inside the hollow body of the soft resin product and is connected to the air discharge port of the manual air pump.
In soft resin products with a manual air pump
The check valve mechanism is composed of two resin sheets that can be brought into close contact with each other, and the check valve mechanism has a base end portion connected to an air discharge port of the manual air pump and the base end portion. It has a tip portion that is an end portion on the opposite side of the portion, and a connecting portion located between the base end portion and the tip portion.
The tip portion is provided with an on-off valve that opens and closes according to the separation or close contact between the two resin sheets.
At least the connecting portion is provided with a communication passage securing material inserted and arranged between the two resin sheets, and the inside and / or adjacent outside of the communication passage securing material is of the manual air pump. It is a soft resin product with a manual air pump, characterized in that a communication passage for guiding the air discharged from the air discharge port to the on-off valve is secured.

また、本考案において、
前記逆止弁機構の幅方向の両側又は片側サイドには、前記２枚の樹脂シートの離間又は密着に応じて開閉される第２の開閉弁が設けられており、この第２の開閉弁は、前記連通路確保材によって確保された連通路と連通可能であることは、好ましい。 Further, in the present invention,
A second on-off valve that opens and closes according to the separation or close contact of the two resin sheets is provided on both sides or one side of the check valve mechanism in the width direction, and the second on-off valve is provided. , It is preferable to be able to communicate with the communication passage secured by the communication passage securing material.

本考案によれば、「少なくとも前記連絡部には、前記２枚の樹脂シートの間に挿入配置された連通路確保材が設けられ、この連通路確保材の内部および／または隣接する外側には、前記手動式空気ポンプの空気吐出口から吐出された空気を前記開閉弁に導くための連通路が確保されている」ため、手動式空気ポンプの手押し動作時においても、連絡部に設けられた連通路確保材が押し潰されて連通路確保材の内部および／または隣接する外側に確保された連通路が閉塞することがなく、従って逆止弁機構は正常な動作を維持することができる。
また、逆止弁機構の先端部に設けられた開閉弁（第１の開閉弁）の他に、逆止弁機構の幅方向の両側又は片側サイドに第２の開閉弁を設けることで、逆止弁機構の先端部が折れ曲がる等の事情により第１の開閉弁が正常に開閉動作できない場合でも、残る第２の開閉弁が正常に開閉動作することができるため、逆止弁機構全体として常に正常な動作を維持することができる。 According to the present invention, "at least the connecting portion is provided with a connecting passage securing material inserted and arranged between the two resin sheets, and inside and / or adjacent outside of the connecting passage securing material. , A communication passage for guiding the air discharged from the air discharge port of the manual air pump to the on-off valve is secured. ”Therefore, even during the manual push operation of the manual air pump, it is provided in the communication part. The communication passage securing material is not crushed and the communication passages reserved inside and / or adjacent outside of the communication passage securing material are not blocked, so that the check valve mechanism can maintain normal operation.
Further, in addition to the on-off valve (first on-off valve) provided at the tip of the check valve mechanism, a second on-off valve is provided on both sides or one side of the check valve mechanism in the width direction to reverse the check valve mechanism. Even if the first on-off valve cannot be opened and closed normally due to reasons such as the tip of the check valve mechanism being bent, the remaining second on-off valve can be opened and closed normally, so that the check valve mechanism as a whole is always open and closed. Normal operation can be maintained.

一般的な手動式空気ポンプ付き軟質樹脂製品を側面から見た状態を示し、（Ａ）は空気充填状態での概略側面図、（Ｂ）は空気充填の初期段階において空気ポンプが押し潰された状態を示す概略側面図。A general soft resin product with a manual air pump is shown from the side, (A) is a schematic side view in an air-filled state, and (B) is an air pump crushed in the initial stage of air filling. Schematic side view showing the state. 従来の逆止弁機構を示し、（Ａ）は正面側から見た概略斜視図、（Ｂ）はＢ１−Ｂ１線での概略断面図、（Ｃ）はＣ１−Ｃ１線での概略断面図。A conventional check valve mechanism is shown, (A) is a schematic perspective view seen from the front side, (B) is a schematic sectional view taken along line B1-B1, and (C) is a schematic sectional view taken along line C1-C1. 本考案に従う手動式空気ポンプ付き軟質樹脂製品を側面から見た、空気充填状態での概略側面図。Schematic side view of a soft resin product with a manual air pump according to the present invention in an air-filled state as viewed from the side. 手動式空気ポンプの上部に設けられたフラップ弁型逆止弁の概略断面図。Schematic cross-sectional view of a flap valve type check valve provided on top of a manual air pump. 本考案の一実施形態に従う逆止弁機構を示し、（Ａ）は正面側から見た概略斜視図、（Ｂ）はＢ２−Ｂ２線での概略断面図、（Ｃ）はＣ２−Ｃ２線での概略断面図。A check valve mechanism according to an embodiment of the present invention is shown, (A) is a schematic perspective view seen from the front side, (B) is a schematic sectional view taken along line B2-B2, and (C) is drawn along line C2-C2. Schematic cross-sectional view of. （Ａ）〜（Ｄ）は、本考案で採用可能な連通路確保材の各種態様を示す概略断面図、(A) to (D) are schematic cross-sectional views showing various aspects of the continuous passage securing material that can be adopted in the present invention. 本考案に従う逆止弁機構の変更例を示す図５（Ａ）相当の概略斜視図。FIG. 5 (A) is a schematic perspective view corresponding to FIG. 5A showing an example of modification of the check valve mechanism according to the present invention.

以下、図３、図４、図５及び図６（Ａ）を参照して本考案の一実施形態を説明する。
図３に示すように、本実施形態の手動式空気ポンプ付き軟質樹脂製品は、内部に空気を充填することで使用可能となる軟質樹脂製品１０の上に、手動式空気ポンプ２０を一体的に取り付けてなるものである。軟質樹脂製品１０は中空な本体１１を備え、この中空本体１１は、例えばビニール等の無色透明（又は有色不透明）の軟質合成樹脂のシート素材で作られている。 Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 3, 4, 5, and 6 (A).
As shown in FIG. 3, in the soft resin product with a manual air pump of the present embodiment, the manual air pump 20 is integrally formed on the soft resin product 10 that can be used by filling the inside with air. It is attached. The soft resin product 10 includes a hollow main body 11, and the hollow main body 11 is made of a colorless transparent (or colored opaque) soft synthetic resin sheet material such as vinyl.

手動式空気ポンプ２０は中空な円柱状の構造物であり、そのほぼ全体が、前記軟質樹脂製品の中空本体１１と同様に、例えばビニール等の無色透明（又は有色不透明）の軟質合成樹脂製のシート素材で作られている。手動式空気ポンプ２０は、円筒状の周壁部２１と、該円筒状周壁部２１の上端を塞ぐ円形の上壁部２２と、該円筒状周壁２１の下端を塞ぐ円形の底壁部２３とを有している。円筒状周壁部２１は、手で上から押し潰されて蛇腹状に縮んだときでも（図１（Ｂ）参照）、その後に弾性的な復元力によってほぼ元の形状に復帰する性質がある。なお、手動式空気ポンプ２０の底壁部２３は、軟質樹脂製品１０の中空本体１１を形成している壁の一部を兼ねている。 The manual air pump 20 is a hollow columnar structure, and almost the entire body thereof is made of a colorless transparent (or colored opaque) soft synthetic resin such as vinyl, like the hollow body 11 of the soft resin product. Made of sheet material. The manual air pump 20 has a cylindrical peripheral wall portion 21, a circular upper wall portion 22 that closes the upper end of the cylindrical peripheral wall portion 21, and a circular bottom wall portion 23 that closes the lower end of the cylindrical peripheral wall portion 21. Have. The cylindrical peripheral wall portion 21 has a property of returning to a substantially original shape by an elastic restoring force even when it is crushed from above by hand and contracted in a bellows shape (see FIG. 1 (B)). The bottom wall portion 23 of the manual air pump 20 also serves as a part of the wall forming the hollow main body 11 of the soft resin product 10.

図４に示すように、手動式空気ポンプ２０の上壁部２２の略中央には、空気吸入口２４が設けられている。そして、この空気吸入口２４には、フラップ弁型の逆止弁２７が設置されている。フラップ弁型の逆止弁２７は、平面視が略半円形をしたフラップ弁２７ａを備えている。フラップ弁２７ａを間に挟んでの上下（つまりポンプ外内）の圧力差に応じてフラップ弁２７ａが適宜開閉動作することで、この逆止弁２７は、外気を空気ポンプ２０内に導入し得るが、空気ポンプ２０内の空気が外に逃げるのを防止する一方向性の逆止弁（２７）として機能する。 As shown in FIG. 4, an air suction port 24 is provided at substantially the center of the upper wall portion 22 of the manual air pump 20. A flap valve type check valve 27 is installed in the air suction port 24. The flap valve type check valve 27 includes a flap valve 27a having a substantially semicircular plan view. The check valve 27 can introduce outside air into the air pump 20 by appropriately opening and closing the flap valve 27a according to the pressure difference between the upper and lower sides (that is, inside and outside the pump) with the flap valve 27a in between. However, it functions as a unidirectional check valve (27) that prevents the air in the air pump 20 from escaping to the outside.

また、空気吸入口２４の外気側には、栓２８が設けられている。空気ポンプ２０の使用時には、空気吸入口２４から栓２８を外して外気を空気ポンプ２０内に導入可能とする。他方、空気ポンプ２０の不使用時（空気充填完了時）には、空気吸入口２４を栓２８で閉じることで空気漏れを完全防止する。なお、空気吸入口２４は、備え付けの公知の栓２８によって適宜開状態又は閉状態とすることができる。 Further, a plug 28 is provided on the outside air side of the air suction port 24. When the air pump 20 is used, the plug 28 is removed from the air suction port 24 so that the outside air can be introduced into the air pump 20. On the other hand, when the air pump 20 is not in use (when the air filling is completed), the air suction port 24 is closed by the plug 28 to completely prevent air leakage. The air suction port 24 can be appropriately opened or closed by a known plug 28 provided.

図５（Ａ）に示すように、手動式空気ポンプ２０の底壁部２３の略中央には、空気吐出口２５が設けられている。この空気吐出口２５には、空気ポンプの底壁部２３の下側にぶら下がる形で逆止弁機構３０が設けられている。従って、逆止弁機構３０それ自体は、軟質樹脂製品１０の中空本体１１の内部に配置される。図５（Ａ）の逆止弁機構３０も、従来の逆止弁機構と同様、主として２枚の透明な軟質樹脂シート（３１ａ，３１ｂ）をラミネートすると共に部分的に接着（又は溶着）することで構成されている。 As shown in FIG. 5A, an air discharge port 25 is provided at substantially the center of the bottom wall portion 23 of the manual air pump 20. The air discharge port 25 is provided with a check valve mechanism 30 that hangs below the bottom wall portion 23 of the air pump. Therefore, the check valve mechanism 30 itself is arranged inside the hollow body 11 of the soft resin product 10. Similar to the conventional check valve mechanism, the check valve mechanism 30 of FIG. 5 (A) is mainly composed of two transparent soft resin sheets (31a, 31b) laminated and partially bonded (or welded). It is composed of.

逆止弁機構３０の基端部（上端部）３０ａは、手動式空気ポンプ２０の空気吐出口２５に連結されている。つまり、逆止弁機構の基端部３０ａを形成している樹脂シート（３１ａ，３１ｂ）の略環状の上端部が、空気吐出口２５の孔縁に接続されている。この基端部３０ａの連結構造は、従来の逆止弁機構のそれと基本的に同じである。 The base end (upper end) 30a of the check valve mechanism 30 is connected to the air discharge port 25 of the manual air pump 20. That is, the substantially annular upper end portion of the resin sheet (31a, 31b) forming the base end portion 30a of the check valve mechanism is connected to the hole edge of the air discharge port 25. The connection structure of the base end portion 30a is basically the same as that of the conventional check valve mechanism.

図５（Ａ）及び（Ｃ）に示すように、逆止弁機構３０の先端部（下端部）３０ｂは、当該先端部に用いられている２枚の軟質樹脂シート（３１ａ，３１ｂ）が互いに離間及び密着可能となっていることで、両軟質樹脂シートの離間又は密着に応じて開閉される開閉弁３２を構成している。この先端部３０ｂにおける開閉弁３２の構造は、従来の逆止弁機構のそれと基本的に同じである。 As shown in FIGS. 5A and 5C, the check valve mechanism 30 has two soft resin sheets (31a, 31b) used for the tip of the check valve mechanism 30 at the tip (lower end) 30b. Since the two soft resin sheets can be separated and brought into close contact with each other, the on-off valve 32 that opens and closes according to the separation or close contact between the two soft resin sheets is configured. The structure of the on-off valve 32 at the tip portion 30b is basically the same as that of the conventional check valve mechanism.

更に図５（Ａ）及び（Ｂ）に示すように、逆止弁機構３０の基端部３０ａと先端部３０ｂとの間は、両部をつなぐ連絡部３０ｃとなっている。なお、連絡部３０ｃと先端部３０ｂとの境界に沿って、２枚の軟質樹脂シート（３１ａ，３１ｂ）を部分的に溶着することで溶着部３６が形成されている（図５（Ａ）参照）。連絡部３０ｃの幅方向中央には、相対面する２枚の樹脂シート（３１ａ，３１ｂ）の一部を意図的に離間させ非接着とすることで形成される縦長な空間３３が確保されている。そして、この縦長な空間３３内には、２枚の樹脂シート（３１ａ，３１ｂ）の間に挟まれる形で、連通路確保材としてのストロー形状の導管３４が挿入配置されている。 Further, as shown in FIGS. 5A and 5B, a connecting portion 30c connecting both portions is formed between the base end portion 30a and the tip end portion 30b of the check valve mechanism 30. The welded portion 36 is formed by partially welding the two soft resin sheets (31a and 31b) along the boundary between the connecting portion 30c and the tip portion 30b (see FIG. 5 (A)). ). At the center of the connecting portion 30c in the width direction, a vertically long space 33 formed by intentionally separating a part of two resin sheets (31a, 31b) facing each other and making them non-adhesive is secured. .. Then, in the vertically long space 33, a straw-shaped conduit 34 as a connecting passage securing material is inserted and arranged so as to be sandwiched between two resin sheets (31a, 31b).

連通路確保材としての前記導管３４は、硬質な素材で作られている。この硬質な素材は、逆止弁機構３０のほぼ全体を構成している軟質合成樹脂（例えばビニール）よりも硬い素材であればよく、硬質の合成樹脂（例えばポリプロピレン）や金属を例示することができる。なお、本願の連通路確保材（導管３４）に関して「硬質」という場合、それは、基本的に外圧によって導管３４の断面形状が完全に潰れてしまわない程度（つまり閉塞されない程度）の硬さを有することを意味するものであり、導管３４自体を曲げたり湾曲させたりすることが全く不可能なことを要求するものではない（つまり適度な曲げや湾曲は許容される）。 The conduit 34 as a connecting passage securing material is made of a hard material. The hard material may be a material harder than the soft synthetic resin (for example, vinyl) that constitutes almost the entire check valve mechanism 30, and examples thereof include a hard synthetic resin (for example, polypropylene) and a metal. it can. When the material for securing the passageway (conduit 34) of the present application is referred to as "hard", it basically has a hardness such that the cross-sectional shape of the conduit 34 is not completely crushed (that is, not blocked) by external pressure. This does not mean that it is completely impossible to bend or bend the conduit 34 itself (that is, moderate bending or bending is allowed).

前記導管３４は、手動式空気ポンプ２０の空気吐出口２５から吐出された空気を逆止弁機構３０の先端部３０ｂ（開閉弁３２）に導くための管材であるが、このストロー形状の導管３４を縦長な空間３３内に安定的に保持するために、導管３４は、２枚の樹脂シートのうちの一方（３１ｂ）に対し、透明な軟質樹脂製の長帯状の留めシート３５によって固定されている。つまり、長帯状の留めシート３５の左右両縁が樹脂シート（３１ｂ）に対して溶着されることで、二つのシート（３１ｂ，３５）間にストロー形状の導管３４が挟み込まれ、当該導管３４が樹脂シート（３１ｂ）に対して位置ずれ困難な状態で安定保持される。なお、図５（Ｂ）及び（Ｃ）では、軟質樹脂シート（３１ａ，３１ｂ）および留めシート３５の厚さが実際よりもデフォルメして描かれているが、これらシートの実際の厚さは１ｍｍにも満たない。 The conduit 34 is a pipe material for guiding the air discharged from the air discharge port 25 of the manual air pump 20 to the tip portion 30b (opening / closing valve 32) of the check valve mechanism 30, and the straw-shaped conduit 34. The conduit 34 is fixed to one of the two resin sheets (31b) by a long strip-shaped fastening sheet 35 made of a transparent soft resin in order to stably hold the air in the vertically long space 33. There is. That is, by welding the left and right edges of the long strip-shaped fastening sheet 35 to the resin sheet (31b), the straw-shaped conduit 34 is sandwiched between the two sheets (31b, 35), and the conduit 34 becomes It is stably held in a state where it is difficult to shift its position with respect to the resin sheet (31b). In FIGS. 5 (B) and 5 (C), the thicknesses of the soft resin sheets (31a, 31b) and the fastening sheet 35 are drawn more deformed than they actually are, but the actual thickness of these sheets is 1 mm. Less than.

図６（Ａ）は、２枚の樹脂シート（３１ａ，３１ｂ）の間に挟まれる形で両シート間に挿入配置された連通路確保材としてのストロー形状の導管３４と、２枚の樹脂シート（３１ａ，３１ｂ）との相関関係を概略的に示す断面図である（但し図の簡略化のため、留めシート３５を省略している）。図６（Ａ）に示すように、導管３４は断面円形状の中空な管材であることから、導管３４の内部が連通路（４１）を提供することは言うまでもない。それだけでなく、硬質の導管３４が２枚の樹脂シート（３１ａ，３１ｂ）の間に挿入配置されて両シートを部分的に離間させている結果、導管３４の左右の隣接外側領域にも二つの連通路（４２）が副次的又は不可避的に提供されることになる。この導管３４の内部に確保された内部連通路４１も、導管３４の隣接外側領域に確保された左右二つの隣接外側連通路４２も共に、手動式空気ポンプ２０の空気吐出口２５から吐出された空気を逆止弁機構３０の先端部３０ｂ（開閉弁３２）に導くための通路として役立つものである。 FIG. 6A shows a straw-shaped conduit 34 as a connecting passage securing material inserted and arranged between the two resin sheets (31a, 31b) so as to be sandwiched between the two resin sheets, and two resin sheets. It is sectional drawing which shows the correlation with (31a, 31b) roughly (however, the fastening sheet 35 is omitted for simplification of the figure). As shown in FIG. 6A, since the conduit 34 is a hollow pipe material having a circular cross section, it goes without saying that the inside of the conduit 34 provides a continuous passage (41). Not only that, but as a result of the rigid conduit 34 being inserted between the two resin sheets (31a, 31b) to partially separate the two sheets, there are also two adjacent outer regions on the left and right sides of the conduit 34. The connecting passage (42) will be provided as a secondary or inevitable. Both the internal communication passage 41 secured inside the conduit 34 and the two left and right adjacent outer communication passages 42 secured in the adjacent outer region of the conduit 34 were discharged from the air discharge port 25 of the manual air pump 20. It serves as a passage for guiding air to the tip portion 30b (opening / closing valve 32) of the check valve mechanism 30.

手動式空気ポンプ２０の使用方法および逆止弁機構３０の機能は、従来のものと基本的に同じであるので重複説明はしない（上記段落０００４参照）。但し、本実施形態の逆止弁機構３０によれば、連絡部３０ｃの縦長な空間３３内には、連通路確保材としての導管３４が設けられ、この導管３４の内部および隣接する左右両外側には連通路（内部連通路４１および左右二つの隣接外側連通路４２）が常時確保されている。このため、手動式空気ポンプ２０の空気吐出口２５から吐出された空気を開閉弁３２に導くべく、手動式空気ポンプ２０の手押し動作時においても、連絡部３０ｃに設けられた硬質な導管３４が完全に押し潰されることがなく、従って前記各連通路（４１，４２）も閉塞することがない。従って本実施形態の逆止弁機構３０によれば、逆止弁機構３０は常時、正常な動作を維持することができる。 Since the usage of the manual air pump 20 and the function of the check valve mechanism 30 are basically the same as those of the conventional one, no duplicate description will be given (see paragraph 0004 above). However, according to the check valve mechanism 30 of the present embodiment, a conduit 34 as a connecting passage securing material is provided in the vertically long space 33 of the connecting portion 30c, and the inside of the conduit 34 and the adjacent left and right outsides are provided. (Internal communication passage 41 and two adjacent outer communication passages 42 on the left and right) are always secured in the space. Therefore, in order to guide the air discharged from the air discharge port 25 of the manual air pump 20 to the on-off valve 32, the hard conduit 34 provided in the connecting portion 30c is provided even during the manual pushing operation of the manual air pump 20. It is not completely crushed and therefore the respective passages (41, 42) are not blocked. Therefore, according to the check valve mechanism 30 of the present embodiment, the check valve mechanism 30 can always maintain normal operation.

［変更例（連通路確保材の各種形態について）］
本考案で採用可能な連通路確保材は、図５及び図６（Ａ）に示すようなストロー形状の導管３４に限定されるものではなく、例えば図６（Ｂ），（Ｃ）及び（Ｄ）に示すようなものであっても、導管３４と同様の作用・効果を奏し得る。即ち、
図６（Ｂ）に示すように、連通路確保材３４１は、横断面が半円弧状の樋状の部材であってもよい。この連通路確保材３４１にあっては、内側に位置する溝によって内部連通路４１が確保され、当該確保材３４１の左右には二つの隣接外側連通路４２が確保される。
図６（Ｃ）に示すように、連通路確保材３４２は、横断面がコの字型の樋状の部材であってもよい。この連通路確保材３４２にあっては、内側に位置する溝によって内部連通路４１が確保され、当該確保材３４２の左右には二つの隣接外側連通路４２が確保される。
図６（Ｄ）に示すように、連通路確保材３４３は、横断面が矩形状の非中空（つまり中実）な棒状部材であってもよい。この連通路確保材３４３にあっては、その左右両側において二つの隣接外側連通路４２が確保される。 [Change example (various forms of continuous passage securing material)]
The connecting passage securing material that can be used in the present invention is not limited to the straw-shaped conduit 34 as shown in FIGS. 5 and 6 (A), and is, for example, FIGS. 6 (B), (C) and (D). ), The same action / effect as that of the conduit 34 can be obtained. That is,
As shown in FIG. 6B, the continuous passage securing member 341 may be a gutter-shaped member having a semicircular cross section. In the connecting passage securing material 341, the internal connecting passage 41 is secured by the groove located inside, and two adjacent outer connecting passages 42 are secured on the left and right sides of the securing material 341.
As shown in FIG. 6C, the continuous passage securing member 342 may be a gutter-shaped member having a U-shaped cross section. In the connecting passage securing material 342, the internal connecting passage 41 is secured by the groove located inside, and two adjacent outer connecting passages 42 are secured on the left and right sides of the securing material 342.
As shown in FIG. 6D, the passage securing member 343 may be a non-hollow (that is, solid) rod-shaped member having a rectangular cross section. In the connecting passage securing material 343, two adjacent outer connecting passages 42 are secured on both the left and right sides thereof.

［変更例（第２の開閉弁について）］
互いに密着可能な２枚の樹脂シート（３１ａ，３１ｂ）で構成される逆止弁機構３０は、図５に示す形態に限定されるものではなく、図７に示すような形態であってもよい。即ち図７に示すように、逆止弁機構３０の先端部３０ｂと、連絡部３０ｃの一部とを幅方向に沿って左右に若干拡張すると共に、当該先端部３０ｂと連絡部３０ｃの間の左右領域において、２枚の軟質樹脂シート（３１ａ，３１ｂ）を略コ字状に部分溶着することで、図７に示すような溶着部３８を形成する。こうして先端部３０ｂと連絡部３０ｃとを分離区画することで、逆止弁機構の先端部３０ｂに設けられた（第１の）開閉弁３２の他に、逆止弁機構３０の幅方向の両側サイド（図７では連絡部３０ｃの左右両側）にも第２の開閉弁３９をそれぞれ設ける。これら第２の開閉弁３９も、（第１の）開閉弁３２と同様、両樹脂シートの離間又は密着に応じて開閉されるタイプの開閉弁である。この図７の構成にあっては、左右の第２開閉弁３９は、連通路確保材（３４，３４１〜３４３のいずれか）の左右に位置する隣接外側連通路４２とそれぞれ位置的に近い。このため、左右の第２開閉弁３９は、左右の隣接外側連通路４２とそれぞれ連通可能となっている。 [Change example (about the second on-off valve)]
The check valve mechanism 30 composed of two resin sheets (31a, 31b) that can be brought into close contact with each other is not limited to the form shown in FIG. 5, and may be in the form shown in FIG. .. That is, as shown in FIG. 7, the tip portion 30b of the check valve mechanism 30 and a part of the connecting portion 30c are slightly expanded to the left and right along the width direction, and between the tip portion 30b and the connecting portion 30c. In the left and right regions, two soft resin sheets (31a, 31b) are partially welded in a substantially U-shape to form a welded portion 38 as shown in FIG. 7. By separating the tip portion 30b and the connecting portion 30c in this way, in addition to the (first) on-off valve 32 provided at the tip portion 30b of the check valve mechanism, both sides of the check valve mechanism 30 in the width direction are provided. Second on-off valves 39 are also provided on the sides (on the left and right sides of the connecting portion 30c in FIG. 7). Like the (first) on-off valve 32, the second on-off valve 39 is also a type of on-off valve that opens and closes according to the separation or close contact between the two resin sheets. In the configuration of FIG. 7, the left and right second on-off valves 39 are positionally close to the adjacent outer connecting passages 42 located on the left and right of the connecting passage securing material (any of 34, 341 to 343). Therefore, the left and right second on-off valves 39 can communicate with the left and right adjacent outer communication passages 42, respectively.

図７に示すような計３個の開閉弁（３２，３９）を備えた逆止弁機構３０によれば、例えば手動式空気ポンプ２０の操作時（とりわけ押し潰し時）に、（第１の）開閉弁３２を形作っている樹脂シート（３１ａ，３１ｂ）が途中で折れ曲がってしまって開閉弁として正常に開閉動作できない場合でも、残り二つの第２開閉弁３９が開閉弁としての機能を果たすことができ、軟質樹脂製品１０に対する空気入れを支障なく行うことができる。 According to the check valve mechanism 30 provided with a total of three on-off valves (32, 39) as shown in FIG. 7, for example, when the manual air pump 20 is operated (particularly when crushed), (first ) Even if the resin sheets (31a, 31b) forming the on-off valve 32 are bent in the middle and cannot be normally opened and closed as an on-off valve, the remaining two second on-off valves 39 function as on-off valves. It is possible to inflate the soft resin product 10 without any trouble.

１０ 軟質樹脂製品
１１ 中空本体
２０ 手動式空気ポンプ
２４ 空気吸入口
２５ 空気吐出口
２７ フラップ弁型の逆止弁
３０ 逆止弁機構
３０ａ 基端部
３０ｂ 先端部
３０ｃ 連絡部
３１ａ，３１ｂ ２枚の軟質樹脂シート
３２ 開閉弁
３３ 縦長な空間
３４ 連通路確保材としての導管
３４１ 連通路確保材
３４２ 連通路確保材
３４３ 連通路確保材
３９ 第２の開閉弁
４１ 内部連通路
４２ 隣接外側連通路 10 Soft resin product 11 Hollow body 20 Manual air pump 24 Air suction port 25 Air discharge port 27 Flap valve type check valve 30 Check valve mechanism 30a Base end 30b Tip 30c Connecting part 31a, 31b Two soft Resin sheet 32 On-off valve 33 Vertical space 34 Conduit as a continuous passage securing material 341 Continuous passage securing material 342 Continuous passage securing material 343 Continuous passage securing material 39 Second on-off valve 41 Internal continuous passage 42 Adjacent outer continuous passage

Claims (2)

内部に空気を充填することで使用可能となる軟質樹脂製品（１０）の中空本体（１１）と、
前記中空本体（１１）に一体的に取り付けられた手動式空気ポンプ（２０）と、
前記軟質樹脂製品の中空本体（１１）の内部に配置されると共に、前記手動式空気ポンプ（２０）の空気吐出口（２５）に連結された逆止弁機構（３０）と、
を備えてなる手動式空気ポンプ付き軟質樹脂製品において、
前記逆止弁機構（３０）は、互いに密着可能な２枚の樹脂シート（３１ａ，３１ｂ）で構成されると共に、当該逆止弁機構（３０）は、前記手動式空気ポンプの空気吐出口（２５）に連結される基端部（３０ａ）と、前記基端部とは反対側の端部である先端部（３０ｂ）と、前記基端部と前記先端部との間に位置する連絡部（３０ｃ）とを有し、
前記先端部（３０ｂ）には、前記２枚の樹脂シート（３１ａ，３１ｂ）の離間又は密着に応じて開閉される開閉弁（３２）が設けられており、
少なくとも前記連絡部（３０ｃ）には、前記２枚の樹脂シート（３１ａ，３１ｂ）の間に挿入配置された連通路確保材（３４，３４１〜３４３）が設けられ、この連通路確保材の内部および／または隣接する外側には、前記手動式空気ポンプの空気吐出口（２５）から吐出された空気を前記開閉弁（３２）に導くための連通路（４１，４２）が確保されていることを特徴とする、手動式空気ポンプ付き軟質樹脂製品。 The hollow body (11) of the soft resin product (10) that can be used by filling the inside with air,
A manual air pump (20) integrally attached to the hollow body (11),
A check valve mechanism (30) arranged inside the hollow body (11) of the soft resin product and connected to an air discharge port (25) of the manual air pump (20).
In soft resin products with a manual air pump
The check valve mechanism (30) is composed of two resin sheets (31a, 31b) that can be brought into close contact with each other, and the check valve mechanism (30) is an air discharge port (30) of the manual air pump. A base end portion (30a) connected to 25), a tip end portion (30b) which is an end portion opposite to the base end portion, and a connecting portion located between the base end portion and the tip end portion. Has (30c) and
The tip portion (30b) is provided with an on-off valve (32) that opens and closes according to the separation or close contact between the two resin sheets (31a, 31b).
At least the connecting portion (30c) is provided with a continuous passage securing material (34,341-343) inserted and arranged between the two resin sheets (31a, 31b), and the inside of the continuous passage securing material. On the outer side adjacent to and / or adjacent, a communication passage (41, 42) for guiding the air discharged from the air discharge port (25) of the manual air pump to the on-off valve (32) is secured. A soft resin product with a manual air pump. 前記逆止弁機構（３０）の幅方向の両側又は片側サイドには、前記２枚の樹脂シート（３１ａ，３１ｂ）の離間又は密着に応じて開閉される第２の開閉弁（３９）が設けられており、この第２の開閉弁（３９）は、前記連通路確保材によって確保された連通路（４２）と連通可能であることを特徴とする、請求項１に記載の手動式空気ポンプ付き軟質樹脂製品。 A second on-off valve (39) that opens and closes according to the separation or close contact of the two resin sheets (31a, 31b) is provided on both sides or one side of the check valve mechanism (30) in the width direction. The manual air pump according to claim 1, wherein the second on-off valve (39) can communicate with the communication passage (42) secured by the communication passage securing material. With soft resin products.
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