JPS5889630U

JPS5889630U - Piston mounting structure

Info

Publication number: JPS5889630U
Application number: JP18461481U
Authority: JP
Inventors: 宇田　幸一
Original assignee: カヤバ工業株式会社
Priority date: 1981-12-11
Filing date: 1981-12-11
Publication date: 1983-06-17
Also published as: JPS6142988Y2

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

[Brief explanation of drawings]

第１図は本考案にかかるピストン取付構造の断面図、第
２図は同じくピストンとバルブストッパとの関係を示す
平面図、第３図はノンリタンバルブの平面図、第４図は
同じく斜視図、第５図は同じく切断端部重合時の正面図
、第６図は同じく組立斜視図、第７図は他の実施例を示
し、ピストンとピストンバルブとの関係を示す平面図、
第８図は同じく他の実施例の組立斜視図である。１・・・・・・ピストンロッド、２．１５・・・・・・
バルブストッパ、２ｂ、１５ｂ・・・・・・９＆、３．
１１・・・・・・ピ、　ストン、３ａ、ｌｌａ・・・・
・・ピストンボス部、３ｂ。１１ｂ・・・・・・通油孔、５・・・・・・ノンリタン
バルブ、５ａ、　５ｂ・・・・・・切断端部、６，１２
・・・・・・外径側の突条、７．１３・・・・・・内径
側の突条、８，１４・・・・・・凹所、９・・・・・・
オリフィス切欠、１０・・・・・・切欠。補正　昭５７．５．２０実用新案登録請求の範囲、図面の簡単な説明を次のよう
に補正する。　　　　−、′ Ｏ実用新案登録請求の範−−− −（１）　切断端部において離接自在に重合されて２つ
°の面がフラットになるノーンリタンバルブを、ピスト
ン取付構造に取り付けられたバルブスートヘパとピスト
ンとの間のピストンボス部にこれの−−外径方向から挿
入し、該ノンリタンバルブがピ゛　　ストンボス部にお
いて軸方向変位自在に支持されてなるピストン取付構造
。　　　−−（２）−ノ鉤タンバルブが弾性材によりつ
る巻き状に形成されてなる実用新案登録請求の範囲第一
１項記載のピストン取付構造。（３）ピストンのノンリタンバルブに対向する側面には
凹所を介してシート面を有する２本のリング状の突条が
設けられ、前記凹所内にはピストンの両側面を貫通する
通油孔が設けられ、内径側または外径側の前記突条にオ
リフィス切欠が設けられてなる実用新案登録請求のの範
囲第、１項記載のピストン取付構造。 −（４）ピストンボス部に嵌挿されるノンリタンパル案
登録請求の範囲第１項記載のピストン取付構造。（５）バルブストッパにはこれの外周に一口する切欠が
設けられ、この切欠の一蔀力５組付けた状態にあるノン
リタンバルブの中心の環孔にかかる大きさに形成されて
りる実用新案登録語＊の範囲第１項記載のピスト７、取
付構造。（６）　　ノンリタンバルブの外径はシリンダの内径よ
り一き目に形成されてなる実用新案登録請求の範−第１
項記載のピストン取付構造。　　　　　　゛図面の簡単
な説明第１図は本考案にかかるピストン取付構造の断面図、第
２図は同じ（ピストンとバルブストッパとの関係を示す
平面図、第３図はノンリタンバルブの平面図、第４図は
同じく斜視図、第５図は同　　　−じ（切断端部重合時
の正面図、第６図は同じく組変斜視図、−７図は他の実
施例を示し、ピストンとピストンバルブとの関係を示す
平面図、第８図“は同じく他の実施例の組立斜視図であ
る。１・・・・・・ピストンバルブ　２．　１５１１１１１
１１１１バルブスト−ツバ、２ｂ、１５ｂ・・・・・・
切欠、３．１１−・・・・・ピストン、３ａ、ｌｌａ・
・・・・・ピストンボス部、３ｂ、−１１ｂ−・・・・
・通油孔　５　ｍ＠＠＠＠・ノンリタンバルブ、５ａ、
　５ｂ−−−二切断端ｉ、６．１２−−−−−−外径側
の突条、７．　１３−−−−−−内径側の突条、８．１
４・・・・・・凹所、９・・・・・・オリフィス切欠、
１０−−−−−−切欠。Fig. 1 is a sectional view of the piston mounting structure according to the present invention, Fig. 2 is a plan view showing the relationship between the piston and the valve stopper, Fig. 3 is a plan view of the non-return valve, and Fig. 4 is a perspective view. , FIG. 5 is a front view when the cut ends are overlapped, FIG. 6 is an assembled perspective view, and FIG. 7 is a plan view showing another embodiment and showing the relationship between the piston and the piston valve.
FIG. 8 is an assembled perspective view of another embodiment. 1...Piston rod, 2.15...
Valve stopper, 2b, 15b...9&, 3.
11...pi, stone, 3a, lla...
...Piston boss part, 3b. 11b...Oil hole, 5...Non-return valve, 5a, 5b...Cut end, 6, 12
...Protrusion on the outer diameter side, 7.13...Protrusion on the inner diameter side, 8, 14...Recess, 9...
Orifice cutout, 10...notch. Amendment May 20, 1982 The scope of the utility model registration claims and the brief description of the drawings are amended as follows. -,' O Scope of Utility Model Registration Request---- (1) A non-return valve that is separably polymerized at the cut end and has two flat surfaces, which is attached to a piston mounting structure. A piston mounting structure in which the non-return valve is inserted into a piston boss between a soot hepar and a piston from the outside diameter direction thereof, and the non-return valve is supported in the piston boss so as to be freely displaceable in the axial direction. --(2) The piston mounting structure according to claim 11, wherein the tongue valve is formed of an elastic material in a spiral shape. (3) Two ring-shaped protrusions having a seat surface are provided through recesses on the side surface of the piston facing the non-return valve, and oil holes penetrating both sides of the piston are provided in the recesses. The piston mounting structure according to claim 1, wherein an orifice cutout is provided in the protrusion on the inner diameter side or the outer diameter side. -(4) The piston mounting structure according to claim 1, which is a non-returnable design that is fitted into the piston boss. (5) The valve stopper is provided with a notch on its outer periphery, and the force of this notch is sized to fit over the ring hole in the center of the non-return valve when assembled. The piston 7 and mounting structure described in item 1 of the patent registration term*. (6) Scope of Utility Model Registration Claim - No. 1, in which the outer diameter of the non-return valve is formed flush with the inner diameter of the cylinder.
Piston mounting structure described in section.゛Brief explanation of the drawings Fig. 1 is a sectional view of the piston mounting structure according to the present invention, Fig. 2 is the same (a plan view showing the relationship between the piston and the valve stopper, Fig. 3 is a plan view of the non-return valve, 4 is a perspective view, FIG. 5 is a front view when the cut ends are overlapped, FIG. 6 is a perspective view of the assembled structure, and FIG. 8 is an assembled perspective view of another embodiment. 1. Piston valve 2. 1511111
1111 Valve stator collar, 2b, 15b...
Notch, 3.11-・・・Piston, 3a, lla・
...Piston boss part, 3b, -11b-...
・Oil hole 5 m@@@・Non-return valve, 5a,
5b---Two cut ends i, 6.12---Protrusions on the outer diameter side, 7. 13------ Protrusion on the inner diameter side, 8.1
4... Recess, 9... Orifice cutout,
10------Notch.

Claims

[Claims for Utility Model Registration] (1) A non-return valve that is separably polymerized at the cut end and has two flat surfaces, between the piston and the valve stopper attached to the end of the piston rod. Insert it into the piston boss part of this from the outside diameter direction,
A piston mounting structure in which the non-return valve is supported in a piston boss portion so as to be freely displaceable in the axial direction. (2) The piston mounting structure according to claim 1, wherein the non-return valve is formed of an elastic material in a spiral shape. (3) Two ring-shaped protrusions having a seat surface are provided through a recess on the side surface of the piston facing the non-return valve, and the two ring-shaped protrusions penetrate through both side surfaces of the piston within the recess. An oil passage hole is provided, a notch and an orifice notch are provided in the protrusion on the inner diameter side and the outer diameter side, and the said notch on the inner diameter side allows the working fluid to pass between the piston boss portion and the protrusion on the inner diameter side. A piston mounting structure according to claim 1 of the claimed utility model registration, wherein the piston mounting structure is configured to (4) The piston mounting structure according to claim 1, wherein a gap is provided between the piston boss portion and the central through hole of the non-return valve fitted into the piston boss portion, through which the working fluid passes. . (5) A utility model registration in which the valve stopper is provided with a notch that opens on its outer periphery, and a portion of this notch is formed to a size that covers the central through-hole of the non-return valve when it is assembled. A piston mounting structure according to claim 1. (6) The piston mounting structure according to claim 1, wherein the outer diameter of the valve stopper is formed to be somewhat thicker than the inner diameter of the cylinder.