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Patent Searching and Data


Title:
AIR VALVE
Document Type and Number:
Japanese Patent JP2018179071
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an air valve excellent in durability without defects such as looseness of a screw.SOLUTION: A piston head 21 and piston rod 22 of a piston 2 are respectively stored in an opening part and shaft hole of a cylinder 1. The piston 2 is assembled into the shaft hole 10 of the cylinder 1 in a reciprocable manner. In the cylinder 1 and the piston rod 22, open holes 13, 23 crossing transversely are formed, respectively, and into the open holes 13, 23, a knock pin 3 is inserted. At least a portion of the open holes 13, 23 has a long hole cross section. When the piston 2 reciprocates in the cylinder 1, the knock pin 3 relatively moves in a long hole direction in the portion.SELECTED DRAWING: Figure 2

Inventors:
樋山 義和
横山 智
清水 啓輔
Application Number:
JP2017076314A
Publication Date:
November 15, 2018
Filing Date:
April 06, 2017
Export Citation:
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Assignee:
株式会社清和モールド
International Classes:
F16K35/00; F16K31/122
Domestic Patent References:
JPH055421U1993-01-26
JPS61223381A1986-10-03
JPH0586916A1993-04-06
JPH0589913U1993-12-07
JP2013083333A2013-05-09
JP2004261969A2004-09-24
JP2005074957A2005-03-24
JP2015048916A2015-03-16
JPS6253123U1987-04-02
Attorney, Agent or Firm:
森田 拓生