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Patent Searching and Data


Title:
MANUAL AIR PUMP
Document Type and Number:
Japanese Patent JP2008232064
Kind Code:
A
Abstract:

To provide a simple structure manual air pump of good air supply efficiency capable of delivery air in an outward stroke and a return stroke of a piston.

This manual air pump P provided with an air delivery port 2 on a front end side of a cylinder 8 loaded with the piston 7, and delivering air from the air delivery port 2 by reciprocating the piston 7 with gripping a grip part 5 of the piston rod 4 projecting out rearward from the cylinder 8, is provided with an outward air discharge passage 26 leading air in a cylinder front chamber 8a out to an air delivery port 2 via a check valve 18C during outward stroke of the piston 7, an outward air charging passage 15 leading fresh air into a cylinder rear chamber 8b via a check valve 18A during return stroke of the piston 7, and a return stroke air charging passage 24 leading fresh air into the cylinder front chamber 8a via the check valve 18B during return stroke.


Inventors:
HASHIMOTO KEISUKE
Application Number:
JP2007074768A
Publication Date:
October 02, 2008
Filing Date:
March 22, 2007
Export Citation:
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Assignee:
TIGER GOMME KK
International Classes:
F04B33/00
Domestic Patent References:
JP2003328932A2003-11-19
JPS6314877U1988-01-30
JP16006820Y
JPS59190980U1984-12-18
Attorney, Agent or Firm:
Hisayoshi Shimizu
Yoshihito Shimizu