LIQUID JET PUMP

• Main Author: SATO TERUO
• Format: Patent
• Language: English; Japanese
• Published: 12.10.2017
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; BLASTING; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HANDLING THIN OR FILAMENTARY MATERIAL; HEATING; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; SHOCK-ABSORBERS; SPRINGS; STORING; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

PROBLEM TO BE SOLVED: To provide a liquid jet pump which enables a push-down head to be lightly pushed down in an initial operation from a stationary state to a moment that the push-down head starts moving when the liquid jet pump is used and also enables the push-down head to unfailingly return to an original position after jetting is over.SOLUTION: A liquid jet pump 1 includes: a cylinder 3 which stores a content suctioned from a container; a stem 5 which is erected above the cylinder so as to vertically move while being biased upward by a coil spring 4; a piston 6 which is linked with the stem and disposed so as to vertically slide in the cylinder; and a push-down head 8 attached to an upper end part of the stem and formed with a nozzle 7 communicating with the interior of the stem. A nonlinear characteristic coil spring is used as the coil spring 4.SELECTED DRAWING: Figure 2 【課題】液体噴出ポンプを使用する際の静置状態から押下ヘッドが動き出すまでの作動初期において、押下ヘッドを軽く押し下げることができる一方、噴出し終わった後は、押下ヘッドが元の位置まで確実に戻る液体噴出ポンプを提供する。【解決手段】容器内から吸い上げた内容物を貯蔵するシリンダ３と、コイルスプリング４により上方付勢状態で上下動可能にシリンダ上方に起立したステム５と、ステムに連係しシリンダ内に上下摺動自在に配設されたピストン６と、ステムの上端部に装着されステム内に連通するノズル７が形成された押下ヘッド８と、を備えた液体噴出ポンプ１において、コイルスプリング４を非線形特性コイルスプリングとする。【選択図】図２