JPS641497Y2 - - Google Patents

Description

【考案の詳細な説明】 本考案は主として自動２輪車に適用されるエア
ポンプの吸気弁装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air pump intake valve device mainly applied to two-wheeled motor vehicles.

従来この種装置として、シリンダ内にシリンダ
ライナを介してピストンを設けると共にその上側
はシリンダヘツドと吸気弁とを備える式のものは
知られるが、この場合該吸気弁はその構成が簡単
であると共に組付性が良好であることが好まし
い。 Conventionally, as this type of device, a type is known in which a piston is provided in a cylinder through a cylinder liner, and the upper side of the piston is provided with a cylinder head and an intake valve.In this case, the intake valve has a simple structure and It is preferable that the assemblability is good.

本考案はかゝる要求に適合する装置を得ること
をその目的としたもので、シリンダ１内に、シリ
ンダライナ２を介してピストン３を設けると共に
該ピストン３の上側にシリンダヘツド４と吸気弁
５とを備えるものにおいて、前記吸気弁５を、シ
リンダヘツド４に設けた弁孔１４を開閉するリー
ド弁６を一体に設けた薄板環状の上側の弁板７
と、該弁板７の下面に重合されてリフトされる前
記リード弁６が臨む透窓８とリフトされる前記リ
ード弁６の弯曲基部を支承する支承片１６とを有
する下側の座板９とで構成させ、これら弁板７と
座板９とを前記シリンダライナ２と前記シリンダ
ヘツド４との対向面間に挟持させたことを特徴と
する。 The purpose of the present invention is to obtain a device that meets such requirements.A piston 3 is provided in a cylinder 1 via a cylinder liner 2, and a cylinder head 4 and an intake valve are mounted above the piston 3. 5, the intake valve 5 is connected to a thin annular upper valve plate 7 integrally provided with a reed valve 6 for opening and closing a valve hole 14 provided in the cylinder head 4.
a lower seat plate 9 having a transparent window 8 overlapping the lower surface of the valve plate 7 and facing the reed valve 6 to be lifted, and a support piece 16 for supporting the curved base of the reed valve 6 to be lifted. The valve plate 7 and the seat plate 9 are sandwiched between the opposing surfaces of the cylinder liner 2 and the cylinder head 4.

図示のものでは、該シリンダライナ２の上面に
凹面２ａと、該シリンダヘツド４の下面に凸面２
ｂとを形成させ、両者２，４を該凹面２ａと該凸
面２ｂとで互に嵌合すると共にその外周にＯリン
グ１２を施してその外側の螺子１３で互に締付結
着するようにし、この際該凹面２ａ内には予め該
弁板７と該座板９とを上下に重合して嵌合させる
ようにし、その外周に予め該凹部１０を形成して
これを該凹面２ａの内周に予め形成される該凸部
１１と係合させるようにした。該リード弁６はそ
の下側の該透窓８内に屈曲してその上側の弁孔１
４を開くべく作用するもので、該座板９は該リー
ド弁６のリフト量に応じた肉厚に用意されるもの
とする。図面で１５は前記したピストン３に連る
モータその他の駆動源を示す。 In the illustrated example, the cylinder liner 2 has a concave surface 2a on the upper surface, and a convex surface 2a on the lower surface of the cylinder head 4.
b, and both 2 and 4 are fitted into each other by the concave surface 2a and the convex surface 2b, and an O-ring 12 is provided on the outer periphery of the O-ring 12, and the screws 13 on the outside are used to tighten and connect them to each other. At this time, the valve plate 7 and the seat plate 9 are vertically overlapped and fitted in advance in the concave surface 2a, and the concave portion 10 is previously formed on the outer periphery of the concave surface 2a. It was arranged to engage with the convex portion 11 formed in advance on the periphery. The reed valve 6 is bent into the transparent window 8 on the lower side and opens into the valve hole 1 on the upper side.
The seat plate 9 is designed to have a thickness corresponding to the lift amount of the reed valve 6. In the drawings, reference numeral 15 indicates a motor or other drive source connected to the piston 3 described above.

このように本考案によるときは吸気弁５をシリ
ンダヘツド４設けた弁孔１４を開閉するリード弁
６を一体に設けた薄板環状の上側の弁板７と、該
弁板７の下面に重合されてリフトされるリード弁
６が臨む透窓８と、リフトされるリード弁６の弯
曲基部を支承する支承片１６とを有する下側の座
板９とで構成し、これら弁板７と座板９とをシリ
ンダライナ２とシリンダヘツドとの対向面間に挟
持させたものであるから吸気弁５の組付けを簡単
且つ容易にすると共に薄板の環状の弁板７上のリ
ード弁６は応答性のよいものに形成され、而もそ
の応答時のリード弁６の弯曲基部に負荷される曲
げ応力は、座板９上の支承片１６に支承されてリ
ード弁６の弯曲基部に集中されないため耐久性が
向上できる等の効果を有する。 In this way, according to the present invention, the intake valve 5 is superimposed on the thin annular upper valve plate 7 integrally provided with the reed valve 6 for opening and closing the valve hole 14 provided with the cylinder head 4, and the lower surface of the valve plate 7. It consists of a transparent window 8 through which the reed valve 6 to be lifted faces, and a lower seat plate 9 having a support piece 16 for supporting the curved base of the reed valve 6 to be lifted. 9 is sandwiched between the opposing surfaces of the cylinder liner 2 and the cylinder head, making the assembly of the intake valve 5 simple and easy, and the reed valve 6 on the thin annular valve plate 7 is responsive. Moreover, the bending stress applied to the curved base of the reed valve 6 during response is supported by the support piece 16 on the seat plate 9 and is not concentrated on the curved base of the reed valve 6, thereby improving durability. It has effects such as improving sexual performance.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本案装置を備えたエアポンプの１例の
一部を截除した側面図、第２図はその−線截
断面図、第３図はその要部の分解斜面図である。 １……シリンダ、２……シリンダライナ、３…
…ピストン、４……シリンダヘツド、５……吸気
弁、６……リード弁、７……弁板、８……透窓、
９……座板、１０……凹部、１１……凸部。 FIG. 1 is a partially cutaway side view of an example of an air pump equipped with the device of the present invention, FIG. 2 is a cross-sectional view taken along the line 2, and FIG. 3 is an exploded perspective view of the main parts thereof. 1...Cylinder, 2...Cylinder liner, 3...
... Piston, 4 ... Cylinder head, 5 ... Intake valve, 6 ... Reed valve, 7 ... Valve plate, 8 ... Transparent window,
9... Seat plate, 10... Concave portion, 11... Convex portion.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] シリンダ１内に、シリンダライナ２を介してピ
ストン３を設けると共に該ピストン３の上側にシ
リンダヘツド４と吸気弁５とを備えるものにおい
て、前記吸気弁５を、シリンダヘツド４に設けた
弁孔１４を開閉するリード弁６を一体に設けた薄
板環状の上側の弁板７と、該弁板７の下面に重合
されてリフトされる前記リード弁６が臨む透窓８
とリフトされる前記リード弁６の弯曲基部を支承
する支承片１６とを有する下側の座板９とで構成
させ、これら弁板７と座板９とを前記シリンダラ
イナ２と前記シリンダヘツド４との対向面間に挟
持させたことを特徴とするエアポンプの吸気弁装
置。 In a cylinder 1, a piston 3 is provided through a cylinder liner 2, and a cylinder head 4 and an intake valve 5 are provided above the piston 3. A thin annular upper valve plate 7 integrally provided with a reed valve 6 for opening and closing, and a transparent window 8 facing the reed valve 6 which is overlapped with the lower surface of the valve plate 7 and lifted.
and a lower seat plate 9 having a support piece 16 that supports the curved base of the reed valve 6 to be lifted, and these valve plate 7 and seat plate 9 are connected to the cylinder liner 2 and the cylinder head 4. An air pump intake valve device, characterized in that the air pump is sandwiched between opposing surfaces.