JPS6136772U - valve operating device - 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図は本考案実施例の断面図、第２図はリフト弁１の
斜視図、第３図は各永久磁石及ひ突起の関係を示す平面
図、第４図は第１突起１３の移動軌跡を示す図面であり
、第５図、第６図は従来例の説明図、第７図はこれを改
善した場合の各永久磁石の関係を示し、第８図はこの場
合のリフト弁の開度変化図である。 図中、１・・・・・・リフト弁、１２・・・・・・突起
、１３・・・・・・第１突起、２１・・・・・・、４・
・・・・・第１永久磁石、５・・・・・・第２永久磁石
、６・・・・・・第３永久磁石、７・・・・・・基部、
８２・・・・・・第２突起。FIG. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is a perspective view of the lift valve 1, FIG. 3 is a plan view showing the relationship between each permanent magnet and the projections, and FIG. 4 is the movement of the first projection 13. 5 and 6 are explanatory diagrams of the conventional example, FIG. 7 shows the relationship between each permanent magnet when this is improved, and FIG. 8 shows the opening of the lift valve in this case. It is a degree change diagram. In the figure, 1...lift valve, 12...protrusion, 13...first protrusion, 21..., 4...
...First permanent magnet, 5...Second permanent magnet, 6...Third permanent magnet, 7...Base,
82...Second protrusion.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] リフト弁に設けた一対の第１永久磁石を、このリフト弁
と同軸の円周上に設けた第２、第３永久磁石に対向させ
ると共にこの第２、第３永久磁石の極性を互いに反対方
向に設定し、前記リフト弁をその移動軸線と同軸に設け
た回動筒にすすみ対偶させ、この回動筒の正回動によっ
て前記リフト弁が開弁せしめられるようにしたものにお
いて、リフト弁の外周に半径方向に部分的に突出する第
１突起を設けると共にリフト弁を軸線方向移動可能に収
容する筒室内周壁に半径方向の第２突起を設．け、第１
永久磁石が第２永久磁石と第３永久磁石の境界に一致し
た位置から全開位置に達するまでの間においてのみ、前
記第１突起と第２突起とが相互にリフト弁，の移動方向
て係合するようにした弁操作装置。A pair of first permanent magnets provided on the lift valve are opposed to second and third permanent magnets provided on a circumference coaxial with the lift valve, and the polarities of the second and third permanent magnets are set in opposite directions. , and the lift valve is mated to a rotary cylinder provided coaxially with the axis of movement of the lift valve, and the lift valve is opened by forward rotation of the rotary cylinder. A first protrusion partially protruding in the radial direction is provided on the outer periphery, and a second protrusion in the radial direction is provided on the peripheral wall of the cylinder chamber that accommodates the lift valve so as to be movable in the axial direction. ke, 1st
The first protrusion and the second protrusion engage each other in the direction of movement of the lift valve only during the period from the position where the permanent magnet coincides with the boundary between the second and third permanent magnets to the fully open position. A valve operating device designed to