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US 2003/0192619 A1Published application
Air pump for bicycles
AssigneeMarui Co., Ltd.
InventorShinji Marui
Life of this patent
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AssigneeMarui Co., Ltd.
InventorShinji Marui
Estimating the term…
An air pump for bicycles comprises: an air storage tank 5 for storing compressed air which is charged thereinto from a manual pump 30 through tank-charging passages 43b and 43a; an air-charge valve 44 or 49 for preventing air stored in the air storage tank 5 from reversely flowing toward the manual pump 30 through the tank-charging passages 43b and 43a; air passages 43a and 43c which extends from the air storage tank 5 and which is formed at its tip end with an air discharge port which charges air into a bicycle tire; and an opened and closed valve for opening and closing the air passages 43a and 43c. With this structure, it is possible to provide an air pump for bicycles capable of swiftly charging a large volume of high-pressure air into a bicycle tire.
An air pump for bicycles, comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
Backward citations are indexed for grants only.
Pumping installations or systems specially adapted for elastic fluids: having reservoirs
Pumps actuated by muscle power, e.g. for inflating: specially adapted for inflating tyres of non-motorised vehicles, e.g. cycles, tricycles
Positive-displacement machines for liquids
Term end not estimated
1. Field of the Invention
The present invention relates to an air pump for bicycles, and more particularly to an air pump for bicycles having an air storage tank which can be repeatedly filled with air.
2. Disclosure of the Prior Art
FIG. 1 is a conceptual diagram showing an air pump for bicycles according to an embodiment of the present invention;
FIG. 2 is a partial sectional view showing the air pump for bicycles according to the embodiment of the present invention;
FIGS. 3(a) to 3(d) illustrate an operation of a valve body 44 of the air pump for bicycles according to the embodiment of the present invention;
Next, an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a conceptual diagram showing an air pump for bicycles according to an embodiment of the present invention. The air pump for bicycles comprises an air storage tank 5 for charging compressed air, a manual pump 3 for manually charging air into a bicycle tire, and a switch valve 40 to which the air storage tank 5 and the manual pump 3 are connected. The switch valve 40 has an air discharge port 42 for air in the air storage tank 5 and the manual pump 3. The switch valve 40 functions as an air-charge valve and an opened and closed valve which is defined in the aspect of the present invention.
Details of each portion will be described below in accordance with FIG. 2.