Motor vehicles – Special wheel base – Having only two wheels
Reexamination Certificate
2000-03-31
2001-09-18
Swann, J. J. (Department: 3618)
Motor vehicles
Special wheel base
Having only two wheels
C123S19800E
Reexamination Certificate
active
06290016
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an air cleaner for a motorcycle type vehicle.
2. Description of Related Art
Japanese utility model laid-open No. Sho. 60-19764 discloses a structure having a drain hole provided in a lower part of a dirty room of an air cleaner, with a rubber cap as a one-way structure covering the drain hole. With this construction, water is only discharged from the inside of the dirty room to the outside.
The rubber cap in the above-described related art is a one-way structure. However, since there is negative pressure inside the air cleaner, there will inevitably be air penetrating into the air cleaner from gaps in the discharge ports provided in the rubber cap. At the same time, water and dirt contained in the penetrating air will invade into the inside of the air cleaner. Therefore, there is a danger that the water and dirt will stick directly to the air cleaner element. As a result, there is a need to improve the durability of the air cleaner element, etc. against this sort of water and dirt invading into the air cleaner through the drain hole. The present invention has been conceived to satisfy this demand.
SUMMARY OF THE INVENTION
In order to solve the above described problems, the air cleaner of the present invention includes an inside of an air cleaner case which is partitioned into a clean room and a dirty room by an air cleaner element. The clean room is connected to an engine and an intake hole leading to the atmosphere is provided in an upper part of the dirty room. Furthermore, a drain hole is provided in a lower part of the dirty room and a baffle plate is provided on an extension of an axis of a passage section of the drain hole.
With the above-described structure, even if water and dirt invade into the inside of the dirty room from the drain hole, since a baffle plate is provided on an extension of the axis of the passage of the drain hole, the water and dirt are stopped by this baffle plate. In this way, it is difficult for the water and dirt to invade any further. As a result, the water and dirt do not become directly attached to the air cleaner element. Therefore, it is possible to improve the durability of the air cleaner element.
Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.
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Birch & Stewart Kolasch & Birch, LLP
Honda Giken Kogyo Kabushiki Kaisha
Lum L.
Swann J. J.
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