JPS6244194U - - Google Patents

Description

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

第１図〜第７図は本考案を気化器に適用したと
きの一実施例を示すものであり、第１図は気化器
の平面図、第２図は第１図の矢視図、第３図は
第１図の―線拡大断面図、第４図は第１図の
矢符方向から見たチヨークオープナの拡大正面
図、第５図は第４図の―線拡大断面図、第６
図は絞り部材圧入前の要部拡大断面図、第７図は
絞り部材圧入後の第６図に対応した断面図、第８
図は本考案の他の実施例の第６図に対応した断面
図である。 ２２……壁部材としてのダイヤフラムボデイ、
３１，６０……第１通路孔、３２，５６……絞り
部材、３３，６６……絞り孔、３４，６１……第
２通路孔、３５，５７……第１圧入孔部、３６，
５８……段部、３７，５９……第２圧入孔部、４
２，６２……第１圧入部、４３，６３……中間軸
部、４４，６４……第２圧入部、４５，６５……
案内軸部、５０……環状室、５５……壁部材。 1 to 7 show an embodiment of the present invention applied to a carburetor. FIG. 1 is a plan view of the carburetor, FIG. 3 is an enlarged sectional view taken along the line - in FIG. 1, FIG. 6
The figure is an enlarged sectional view of the main part before the throttle member is press-fitted, FIG. 7 is a cross-sectional view corresponding to FIG. 6 after the throttle member is press-fitted, and FIG.
This figure is a sectional view corresponding to FIG. 6 of another embodiment of the present invention. 22...Diaphragm body as a wall member,
31,60...First passage hole, 32,56...Aperture member, 33,66...Aperture hole, 34,61...Second passage hole, 35,57...First press-fit hole portion, 36,
58...Step part, 37, 59...Second press-fit hole part, 4
2, 62...First press-fitting part, 43,63...Intermediate shaft part, 44,64...Second press-fitting part, 45,65...
Guide shaft portion, 50... annular chamber, 55... wall member.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 壁部材に、その外側面に開口する第１通路孔が
穿設されるとともに、第１通路孔の中間部に角度
をなして連なる第２通路孔が穿設され、第２通路
孔に連通する絞り孔を配設すべく、第１通路孔に
は絞り孔を有する絞り部材が圧入され、第１通路
孔の外部開口端が閉塞される流体通路構造におい
て、第１通路孔は、その外部開口端側から順に大
径の第１圧入孔部と、段部を介して第１圧入孔部
に同軸に連なる小径の第２圧入孔部とを備え、第
２通路孔は第１圧入孔部内面に開口すべく壁部材
に穿設され、前記絞り部材は、第１圧入孔部の外
部開口端に圧入される第１圧入部と、第２連通孔
に連通した環状室を第１圧入孔部内面との間に画
成する中間軸部と、第２圧入孔部の第１圧入孔部
寄りに圧入される第２圧入部と、第２圧入孔部内
に挿入される案内軸部とを備え、前記絞り孔は、
案内軸部の先端面と中間軸部の外側面との間にわ
たつて設けられることを特徴とする流体通路構造
。 A first passage hole that opens on the outer surface of the wall member is bored, and a second passage hole that is continuous at an angle is bored in the middle part of the first passage hole, and communicates with the second passage hole. In a fluid passage structure in which a throttle member having a throttle hole is press-fitted into the first passage hole to provide the throttle hole, and the external opening end of the first passage hole is closed, the first passage hole A first press-fit hole section with a large diameter in order from the end side and a second press-fit hole section with a small diameter coaxially connected to the first press-fit hole section via a step, and the second passage hole is located on the inner surface of the first press-fit hole section. The aperture member is formed in the wall member to be opened to the first press-fit hole, and the throttle member is configured to connect the first press-fit portion that is press-fitted to the external opening end of the first press-fit hole, and the annular chamber that communicates with the second communication hole to the first press-fit hole. An intermediate shaft portion defined between the inner surface and the inner surface, a second press-fit portion press-fitted into the second press-fit hole portion closer to the first press-fit hole portion, and a guide shaft portion inserted into the second press-fit hole portion. , the aperture hole is
A fluid passage structure, characterized in that it is provided across the distal end surface of the guide shaft portion and the outer surface of the intermediate shaft portion.