JPH05332252A - Air pump - Google Patents
Air pumpInfo
- Publication number
- JPH05332252A JPH05332252A JP16700192A JP16700192A JPH05332252A JP H05332252 A JPH05332252 A JP H05332252A JP 16700192 A JP16700192 A JP 16700192A JP 16700192 A JP16700192 A JP 16700192A JP H05332252 A JPH05332252 A JP H05332252A
- Authority
- JP
- Japan
- Prior art keywords
- piston body
- lubricant
- piston
- cylinder
- compression chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、エアポンプに関し、主
として自転車のタイヤチューブに空気を注入するエアポ
ンプにおける空気を圧縮するピストンに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air pump, and more particularly to a piston for compressing air in an air pump for injecting air into a tire tube of a bicycle.
【０００２】[0002]
【従来の技術】従来のエアポンプの要部を図３に示す断
面図を参照して説明する。断面カップ状の天然の獣皮革
（牛革）製のピストン本体２２は金属性のシリンダ１内
に摺動可能に内装されている。このピストン本体２２
は、両側に座金９、９を挟着してナット１０を介してネ
ジ部３を介してピストン棒２に固定されている。尚、ピ
ストン本体２２にはシリンダ１摺動面からの空気漏れを
防止し且つ潤滑作用をなすグリース等が浸漬されてい
る。又、このピストン棒２は図示略の把手に連結されて
いる。この把手を介して、ピストン棒２を往復動（図３
に示す左右）することによって、シリンダ１内（ピスト
ン本体２２の右側）の空気は圧縮されて、図示略に連結
された自転車のタイヤチューブ等に空気を圧入する。2. Description of the Related Art A main part of a conventional air pump will be described with reference to a sectional view shown in FIG. A piston main body 22 made of natural animal leather (cowhide) having a cup-shaped cross section is slidably installed in the metal cylinder 1. This piston body 22
Are fixed to the piston rod 2 via the nut 10 and the threaded portion 3 with the washers 9 and 9 sandwiched therebetween. Incidentally, grease or the like which prevents air leakage from the sliding surface of the cylinder 1 and has a lubricating action is immersed in the piston body 22. The piston rod 2 is connected to a handle (not shown). The piston rod 2 is reciprocated (Fig.
The air inside the cylinder 1 (on the right side of the piston body 22) is compressed by pushing the air into the tire tube of a bicycle or the like (not shown).
【０００３】[0003]
【発明が解決しようとする課題】前記した、ピストン本
体の材料は、弾性作用があってグリース等が浸漬可能な
材料を選定することが必要であって、現在では天然の皮
革を使用している。しかしながら、天然の皮革は入手が
困難となり、高価な材料となっている。そこで、本願
は、安価に入手が可能な材料で構成できるエアポンプを
提供するものである。As the material of the piston body described above, it is necessary to select a material having an elastic action and capable of immersing grease or the like, and at present, natural leather is used. . However, natural leather is difficult to obtain and is an expensive material. Therefore, the present application provides an air pump that can be made of a material that is inexpensively available.
【０００４】[0004]
【課題を解決するための手段】本発明のエアポンプは、
円錐形の大径側をシリンダの圧縮室側に設置した弾性体
のピストン本体を有し、該ピストン本体の空気圧縮室側
の周端部をエッジ状に形成し、且つピストン本体の外周
にリング状の潤滑剤用の凹部を形成したものである。The air pump of the present invention comprises:
It has an elastic piston main body with the large diameter side of the conical shape installed on the compression chamber side of the cylinder, the peripheral end of the piston main body on the air compression chamber side is formed in an edge shape, and a ring is formed on the outer circumference of the piston main body. A concave portion for a lubricant is formed.
【０００５】[0005]
【作用】空気を圧縮するとき、潤滑剤はピストン本体と
シリンダ内周面の円滑な摺動をなし、弾性体でエッジ状
に形成されているピストン本体の周端は、圧縮空気のた
めシリンダ内周面側に拡開し、所謂逆止弁の作用をなし
て圧縮空気を得ることができる。一方、逆方向にピスト
ン本体を移動させると、圧縮室側は負圧となって、エッ
ジ状の周端部とシリンダ内周面に隙間を生じて、空気は
圧縮室に入る。前記作用を交互に繰り返すことによっ
て、圧縮空気を得ることが出来る。When the air is compressed, the lubricant makes a smooth sliding movement between the piston body and the inner peripheral surface of the cylinder, and the peripheral edge of the piston body, which is made of an elastic material and has an edge shape, is compressed inside the cylinder. The compressed air can be obtained by expanding to the peripheral surface side and acting as a so-called check valve. On the other hand, when the piston body is moved in the opposite direction, negative pressure is generated on the compression chamber side, and a gap is created between the edge-shaped peripheral end portion and the cylinder inner peripheral surface, and air enters the compression chamber. Compressed air can be obtained by alternately repeating the above actions.
【０００６】[0006]
【実施例】本発明の１実施例を図面を参照して説明す
る。図１はエアポンプの要部の断面図を示し、図２は図
１の部品分解図を示している。１は金属製円筒形状のシ
リンダ、４はピストン本体、２は先端にネジ部３を有す
るピストン棒である。ピストン本体４は入手し易い天然
ゴムや合成ゴム等の弾性作用を有する材料で製作されて
いる。該ピストン本体４は円錐形であって、該円錐形の
大径側の周端部６はエッジ状に形成されていて、圧縮室
１２側のシリンダ１の内周面に摺動可能に嵌装されてい
る。ピストン本体４の外周にはグリース１１等の潤滑剤
を溜めることが可能な凹部７がリング状に形成されてい
る。又、ピストン本体４の中心部には前記ピストン棒２
を挿入固定する取付け孔５が穿設されていると共に間隔
管８が嵌装されている。前記ピストン本体４は、間隔管
８にピストン棒２を挿入し、ピストン本体４の両側に座
金９、９を介してナット１０で固定されて、グリース１
１を凹部７に詰めた状態でシリンダ１内に挿入して組み
立てられる。尚、前記間隔管８はナット１０での締めす
ぎを禁じてピストン本体４の変形を防止している。又、
ピストン棒２は図示略の把手に連結されているし、圧縮
室１２には圧縮空気を排出する図示略の出口が設けられ
ている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a cross-sectional view of a main part of the air pump, and FIG. 2 shows an exploded view of parts of FIG. Reference numeral 1 is a cylindrical cylinder made of metal, 4 is a piston main body, and 2 is a piston rod having a threaded portion 3 at its tip. The piston body 4 is made of an easily available material such as natural rubber or synthetic rubber having an elastic action. The piston body 4 has a conical shape, and the peripheral end portion 6 on the large diameter side of the conical shape is formed in an edge shape, and is slidably fitted to the inner peripheral surface of the cylinder 1 on the compression chamber 12 side. Has been done. A ring-shaped recess 7 is formed on the outer circumference of the piston body 4 to store a lubricant such as grease 11. The piston rod 2 is provided at the center of the piston body 4.
A mounting hole 5 for inserting and fixing is attached and a spacing tube 8 is fitted. The piston body 4 is constructed such that the piston rod 2 is inserted into the space tube 8 and is fixed to both sides of the piston body 4 with the nuts 10 via washers 9 and 9, so that the grease 1
1 is inserted into the cylinder 1 in a state where it is packed in the recess 7 and assembled. The spacing tube 8 is prevented from being over-tightened with the nut 10 to prevent the piston body 4 from being deformed. or,
The piston rod 2 is connected to a handle (not shown), and the compression chamber 12 is provided with an outlet (not shown) for discharging compressed air.
【０００７】次に前記構成の作用について説明すると、
図示略の把手を介して、図１の右方向（矢印Ａ）に押圧
すると、ピストン本体２はグリース１１を介して円滑に
シリンダ１内周面を摺動しながら圧縮室１２内の空気を
圧縮する。その為、弾性作用を有するエッジ状に形成さ
れているピストン本体２の周端部６は、該圧縮空気のた
めシリンダ１の内周面側に拡開し、所謂逆止弁の作用を
なして圧縮空気を得ることができる。一方、前記とは逆
方向（図１のＢ方向）にピストン本体２を移動させる
と、圧縮室１２側は負圧となって、エッジ状の周端部６
とシリンダ１内周面に隙間を生じて、空気は該隙間を通
って圧縮室１２に入る。そして、前記した動作を繰り返
すことによって、圧縮室１２に形成された図示略の出口
から順次圧縮空気を送り出すことができる。尚、前記ピ
ストン本体へのピストン棒の取付けは、接着剤等で取り
付けることも可能である。Next, the operation of the above configuration will be described.
When pressed in the right direction (arrow A) in FIG. 1 through a handle (not shown), the piston body 2 compresses the air in the compression chamber 12 while smoothly sliding on the inner peripheral surface of the cylinder 1 via the grease 11. To do. Therefore, the peripheral end portion 6 of the piston main body 2, which has an elastic action and is formed like an edge, expands toward the inner peripheral surface side of the cylinder 1 due to the compressed air, and functions as a so-called check valve. Compressed air can be obtained. On the other hand, when the piston main body 2 is moved in the opposite direction (direction B in FIG. 1), negative pressure is generated on the compression chamber 12 side, and the edge-shaped peripheral end portion 6 is formed.
A gap is formed in the inner peripheral surface of the cylinder 1 and the air enters the compression chamber 12 through the gap. Then, by repeating the above-described operation, compressed air can be sequentially sent out from an outlet (not shown) formed in the compression chamber 12. The piston rod may be attached to the piston body with an adhesive or the like.
【０００８】[0008]
【発明の効果】本発明のエアポンプに使用するピストン
本体は、弾性作用のあるゴム等で構成することができる
ため経済性に富むし、凹部に潤滑剤が溜められるため長
期に亙って潤滑剤を補給することなく使用できる。The piston body used in the air pump of the present invention is highly economical because it can be made of elastic rubber or the like, and the lubricant is stored in the recesses, so that the lubricant can be used for a long period of time. Can be used without replenishing.
【図１】エアポンプの要部を示す断面図である。FIG. 1 is a cross-sectional view showing a main part of an air pump.
【図２】図１の部品分解図を示す。FIG. 2 shows an exploded view of the parts of FIG.
【図３】従来のエアポンプの要部を示す断面図である。FIG. 3 is a cross-sectional view showing a main part of a conventional air pump.
１ シリンダ ２ ピストン棒 ４ ピストン本体 ６ エッジ部 ７ 凹部 ９ 座金 １０ ナット １１ 潤滑剤 １２ 圧縮室 1 Cylinder 2 Piston Rod 4 Piston Body 6 Edge 7 Recess 9 Washer 10 Nut 11 Lubricant 12 Compression Chamber
Claims (1)
設置した弾性体のピストン本体であって、該ピストン本
体の空気圧縮室側の周端部をエッジ状に形成し、且つピ
ストン本体の外周にリング状の潤滑剤用の凹部を形成す
ることを特徴とするエアポンプ。1. A piston body, which is an elastic body having a cone-shaped large diameter side installed on the compression chamber side of a cylinder, wherein a peripheral end portion of the piston body on the air compression chamber side is formed into an edge shape, and a piston is provided. An air pump, characterized in that a ring-shaped recess for lubricant is formed on the outer periphery of the main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16700192A JPH05332252A (en) | 1992-06-02 | 1992-06-02 | Air pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16700192A JPH05332252A (en) | 1992-06-02 | 1992-06-02 | Air pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05332252A true JPH05332252A (en) | 1993-12-14 |
Family
ID=15841543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16700192A Pending JPH05332252A (en) | 1992-06-02 | 1992-06-02 | Air pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05332252A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100472101B1 (en) * | 2002-07-12 | 2005-03-08 | 평화정공 주식회사 | Structure for preventing contamination of grease pump |
| JP2012511655A (en) * | 2008-12-11 | 2012-05-24 | ドゥーカス アーゲー | Gas supply device |
| CN103758729A (en) * | 2014-02-13 | 2014-04-30 | 天津凯德实业有限公司 | Piston device |
| JP2016099559A (en) * | 2014-11-25 | 2016-05-30 | 京セラドキュメントソリューションズ株式会社 | Image forming apparatus and cleaning unit |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4721056B1 (en) * | 1969-09-19 | 1972-06-14 |
-
1992
- 1992-06-02 JP JP16700192A patent/JPH05332252A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4721056B1 (en) * | 1969-09-19 | 1972-06-14 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100472101B1 (en) * | 2002-07-12 | 2005-03-08 | 평화정공 주식회사 | Structure for preventing contamination of grease pump |
| JP2012511655A (en) * | 2008-12-11 | 2012-05-24 | ドゥーカス アーゲー | Gas supply device |
| CN103758729A (en) * | 2014-02-13 | 2014-04-30 | 天津凯德实业有限公司 | Piston device |
| JP2016099559A (en) * | 2014-11-25 | 2016-05-30 | 京セラドキュメントソリューションズ株式会社 | Image forming apparatus and cleaning unit |
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