JPS58109571U - compressor - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図乃至第４図は、従来の圧縮機の一例の略示的説明
図で、第１図は縦断面図、第２図は第１図のＡ−Ａ線断
面図、第３図はピストンの斜視図、第４図イ１口、ハは
案内ピンの頭部の３つの形状例を示す斜視図、第５図及
び第６図は、本考案の一実施例の概略説明図で、第５図
は第２図に相当する断面図、第６図は案内ピ゛ンの斜視
図、第７図は案内ピンの他の例の斜視図である。 １：駆動軸、１　　ｔ、　　１　２．　１　　ｓ、　　
１　４：突起、２：ピストン、２　５ｅ　　２　　＝；
、　　２　７ｓ　　２　　ｓ：連通溝、４′−□＋　　
４’　　２ｇ　　４′−３＃４’　　４：案内ピン、４
ａ：ピン本体、４ｂ二針状コロ軸受、４Ｃ：プッシュ、
７：後部国体。 ｃ−」！　　：、１’？ 「４1 to 4 are schematic explanatory diagrams of an example of a conventional compressor, in which FIG. 1 is a longitudinal sectional view, FIG. 2 is a sectional view taken along the line A-A in FIG. 1, and FIG. A perspective view of a piston, FIG. 4A and C are perspective views showing three examples of shapes of the head of the guide pin, FIGS. 5 and 6 are schematic illustrations of an embodiment of the present invention, FIG. 5 is a sectional view corresponding to FIG. 2, FIG. 6 is a perspective view of the guide pin, and FIG. 7 is a perspective view of another example of the guide pin. 1: Drive shaft, 1 t, 1 2. 1 s,
1 4: protrusion, 2: piston, 2 5e 2 =;
, 2 7s 2s: Communication groove, 4'-□+
4' 2g 4'-3#4' 4: Guide pin, 4
a: Pin body, 4b two-needle roller bearing, 4C: Push,
7: Rear national polity. c-”! :, 1'? "4

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 駆動軸の一端外周に、軸方向に沿って摺動可能に嵌着さ
れ、該駆動軸との間に連通孔をもち、かつ頂部に連通孔
と逆止弁をも°つ円筒状ピストンと、同ピストシを軸方
向に沿って相対的に摺動自在に収容し、弁孔と逆止弁を
もつ弁板を有するシリンダとミ同シリンダを収容し、気
体め吸込み口と吐出口をもつケージジグよりなる圧縮機
における上−記ピストンの外周面とシリンダの内周面の
いずれか一方に、上記駆動軸の軸芯に対し直角方向に蛇
行する所定の周期と振幅をもつ波形溝を設け、また、そ
のいずれかに他方に該波形溝に摺動可能に係合する案内
ピンを設けて、駆動軸の回転時に、上記案内ピンをシリ
ンダに対し軸芯方向に相対的に摺動するよう保持すると
ともに、該ピストンの−吸入方向への摺動時に、上記吸
込み口から吸入した気体をその圧縮方向への、摺動時に
、上記吐出口から吐出するように構成してなる圧縮機に
おいて、上記案内ピンに、該案内ピンがピストンの波形
溝の溝壁に転がり接触する部材を設けてなることを特徴
とする圧縮機。a cylindrical piston fitted to the outer periphery of one end of the drive shaft so as to be slidable along the axial direction, having a communication hole between the piston and the drive shaft, and having a communication hole and a check valve at the top; A cage jig that accommodates the piston so as to be relatively slidable along the axial direction, houses a cylinder having a valve plate with a valve hole and a check valve, and has a gas suction port and a gas discharge port. A wavy groove having a predetermined period and amplitude meandering in a direction perpendicular to the axis of the drive shaft is provided on either the outer peripheral surface of the piston or the inner peripheral surface of the cylinder in the compressor, and One of them is provided with a guide pin that slidably engages with the wave-shaped groove on the other, and when the drive shaft rotates, the guide pin is held so as to slide relative to the cylinder in the axial direction. In the compressor, the guide pin is configured such that when the piston slides in the suction direction, the gas sucked in from the suction port is discharged from the discharge port when the piston slides in the compression direction. A compressor characterized in that the guide pin is provided with a member that rolls into contact with the groove wall of the corrugated groove of the piston.