Title of Invention

AN AIR CLEANER APPARATUS FOR A MOTORCYCLE

Abstract An air cleaner apparatus for a motorcycle, characterized in that an air cleaner case is formed from a case body and a cover separable from each other, and a resonator is held between said case body and said cover so as to be built in said air cleaner apparatus, and said resonator is shaped a cup-shaped body without a bottom, and disposed a communicating pipe for communicating the inside and the outside of a cup-shaped body with each other, one of side of said case body and cover is formed a seat which is attached to the bottom of the resonator, another of side said case body and cover is formed a holding portion of the resonator, the air cleaner apparatus is disposed with a air intake duct which is opened forward of the motorcycle, and a connecting tube connecting from the air cleaner apparatus to a carburetor is attached to a front portion of the case body, the air cleaner apparatus is separable from the clean side at the front portion of the air cleaner apparatus to the duty side at rear portion of the air cleaner apparatus, by a air filter element which is disposed on the air cleaner case faced to the connecting tube, the resonator is disposed in the duty side as upper side of the air filter element, the communicating pipe which is disposed the resonator is directed to the side of the motorcycle. 2 4 MAR 2008
Full Text FORM 2
THE PATENTS ACT 1970 [39 OF 1970]
&
THE PATENTS RULES, 2003 COMPLETE SPECIFICATION
[See Section 10; rule 13]
"An air cleaner apparatus for a motorcycle"
HONDA GIKEN KOGYO KABUSHIKI KAISHA, a corporation of Japan, having a place of business at 1-1 Minamiaoyama 2-chome, Minato-ku, Tokyo, Japan.
The following specification particularly describes the invention and the manner in which it is to be performed:

[Detailed Description of the Invention] [0001] [Technical Field of the Invention]
This invention relates to an air cleaner apparatus
for a motorcycle suitable to suppress the production cost and reduce the number of man-hours when a resonator for reducing intake noise is incorporated.
[0002]
[Prior Art]
As an air cleaner apparatus which includes a resonator for reducing intake noise of a motorcycle, an air cleaner apparatus disclosed, for example, in the official gazette of Japanese Utility Model Laid Open No. Sho 53-98228 "Intake Noise Reduction Apparatus for an Internal Combustion Engine" is known.
In FIG. 2 of the official gazette specifled above,
an intake noise reduction apparatus wherein an air
cleaner box 5 (the reference numeral recited in the
official gazette is cited. This similarly applies in the following description) has an opening 5b provided therein
and a closed end pipe 7 is connected as a resonator to
the opening 5b is disclosed.
[0003]
[Problem to be Solved by the Invention]
In the technique of the official gazette mentioned above, when it is tried to connect the closed end pipe 7 to the opening 5b, in order to prevent letting off of the closed end pipe 7 from the air cleaner box 5, for example.

it is necessary, to use a bonding agent or to use a
fastening member such as a screw or a hose band.
Accordingly, since the closed end pipe 7 is
connected to the air cleaner box 5, the number of parts increases and the production cost increases, and besides, the number of man-hours for applying a bonding agent or tightening a screw, a hose band or the like increases.
[0004]
Therefore, it is an object of the present invention to suppress the production cost and reduce the number of man-hours for assembly of an air cleaner apparatus which can reduce intake noise of a motorcycle.
[0005]
[Means for Solving the Problem]
In order to attain the object described above, according to claim 1, an air cleaner apparatus for a motorcycle is characterized in that an air cleaner case is formed from a case body and a cover separable from each other, and a resonator is held between the case body and the cover so as to be built in the air cleaner apparatus.
[0006]
Since the resonator is held between the case body and the air cleaner cover, it is not necessary, for

example, to adhere the resonator to the case body or the cover using a bonding agent or to attach the resonator using a fastening member such as a screw, and the resonator can be attached simply to the air cleaner apparatus. Accordingly, the necessity for a bonding agent or a fastening member such as a screw is eliminated, and the production cost of the air cleaner apparatus can be reduced and the number of man-hours for assembly of the air cleaner apparatus can be reduced.
[0007]
According to claim 2, the air cleaner apparatus for a motorcycle is characterized in that the resonator is a cup-shaped resonator having no bottom face and has connected thereto a communicating pipe in which a communicating hole for communicating the inside and the outside of the resonator is perforated, and a seat for fitting with a bottom of the resonator is provided on one of the case body and the cover while a holding portion for holding the resonator is provided on the other of the case body and the cover.
[0008]
By fitting the bottom of the resonator with the seat provided on one of the case body and the cover and holding the resonator with the holding portion provided

on the other of the case body and the cover, the resonator can be secured with certainty, within the air
cleaner apparatus.
[Brief- Description of the Drawings] [Fig. 1]
FIG- 1 is a side elevational view of a motorcycle, including an air cleaner apparatus according to the present-invention.
[Fig. 2]
FIG. 2 is a side elevational view of the air cleaner apparatus according to the present invention. [Fig. 3]
FIG. 3 is a plan view of the air cleaner apparatus according to the present invention. tFig. 41
FIG. 4 is a sectional view of essential part showing an attaching structure of a resonator of the air cleaner apparatus according to the present invention.

[Fig. 5]
FIG. 5 is a perspective view of the resonator of the air cleaner apparatus according to the present invention.
[Fig. 6]
FIG. 6 is a schematic view illustrating a manner of attachment of the resonator of the air cleaner apparatus according to the present invention.
[0009]
[Mode for Carrying Out the Invention]
An embodiment of the present invention is described below with reference to the accompanying drawings. It is to be noted that the drawings should be viewed in the direction of the reference characters.
FIG. 1 is a side elevational view of a motorcycle including an air cleaner apparatus according to the present invention, and the motorcycle 10 is- a scooter type vehicle wherein a handlebar 11 is provided at a front portion and a front fork 12 and a front wheel 13 provided below the handlebar 11 are steered by the handlebar 11; the front fork 12 and the front wheel 13 are covered with a front cover 14 integral with a front fender; a front inner cover 15 is attached to a rear portion of the front cover 14; a floor step 16 on which
feet of a driver should be placed is provided rearwardly of a lower portion of the front inner cover 15; a body cover 17 is disposed-above a rear portion of the floor step 16; a front portion of a power unit 18 is covered with the body cover 17; a rear wheel 22 is mounted on a

rear portion of the power unit 18; and an air cleaner apparatus 23 is attached to an upper portion of a rear portion of the power unit 18. [0010]
Here, reference numeral 25 denotes a mirror, 26 a headlamp, 27 a front brake apparatus, 28 a side stand, 31 a tandem seat, 32 a seat lower portion cover, 33 a rear combination lamp, and 34 a rear fender. [0011]
FIG. 2 is a side elevational view of the air cleaner apparatus according to the present invention, and the air cleaner apparatus 23 is configured such that an air intake duct 42 for taking in air is attached and an air filter element 43 and a resonator 44 for reducing intake noise are disposed in an air cleaner case 41 and an air cleaner cover 46 serving as a cover is attached to
the air cleaner case 41 by means of screws 45, ... (... signifies that a plurality of such elements are provided. This similarly applies in the following description). It is to be noted that reference numeral 48 denotes a connecting tube connecting from the air cleaner apparatus 23 to a carburetor not shown, and 51 a drain tube. [0012]
FIG. 3 is a plan view of the air cleaner apparatus

according to the present invention and shows that the air cleaner case 41 is formed from a case body 52 and the air cleaner cover 46 and the connecting tube 48 is attached to a front portion of the case body 52 (the blank arrow mark (front) side (this similarly applies in the following description) shown in the figure in order to represent the front side of the vehicle is the front side), and the air filter element 43 is disposed on the front side in the air cleaner case 41 while the resonator 44 is disposed on the rear side in the air cleaner case 41 (in the dirty side which is the upstream side of the air filter element 43) and the resonator 44 built in the air cleaner apparatus 23 is held by and between the case body 52 and the air cleaner cover 46. [0013]
FIG. 4 is a sectional view of essential part showing an attaching structure of the resonator of the air cleaner apparatus according to the present invention.
The resonator 44 is a silencer wherein a
communicating pipe 44b for communicating the inside and the outside of a cup-shaped body 44a with each other is attached to the body 44a and an uneven portion is formed on an inner circumferential face of a opening 44c service as the bottom of the body 44a.

The case body 52 is a member which has an annular projection 52b as a seat formed on a bottom wall 52a thereof and has the opening 44c of the resonator 44 fitted with the annular projection 52b thereof.
Since an interference is provided between the annular projection 52b of the case body 52 and the opening 44c of the resonator 44, the opening 44c can be fitted in close contact with the annular projection 52b and the sound attenuation effect of the resonator 44 can be raised. It is to be noted that reference character 44d denotes a communicating hole perforated in the communicating pipe 44b for establishing communication between the inside of the resonator 44 and the outside of the resonator 44 (inside of the air cleaner case 41). [0014]
The air cleaner cover 46 is a member which has a projection 46b formed thereon as a holding portion projecting from an inner face 46a thereof and holds a receiving portion 44f of the resonator 44 with the projection 46b thereof.
Reference character L1 in the figure denotes the internal length of the body 44a, and L2 the length of the communicating pipe 44b.
The resonance frequency of the resonator 44 can be

changed readily by varying the internal length L1 of the body 44a and the volume of the body 44a, and the length L2 of the communicating pipe 44b and the sectional area of the communicating hole 44d. [0015]
FIG. 5 is a perspective view of the resonator of the air cleaner apparatus according to the present invention and shows that the receiving portion 44f to be held by the projection 46b projects from an outer face 44g of the resonator 44 and reinforcing ribs 44h, ... extend from the receiving portion 44f to the outer face 44g. [0016]
By the receiving portion 44f and the reinforcing ribs 44h, ..., the rigidity of the resonator 44 can be raised and the resonator 44 can be made less liable to be deformed even when the resonator 44 is held between the case body 52 (refer to FIG. 3) and the air cleaner cover 46 {refer to FIG. 3).
Further, the resonator 44 can be molded readily with a mold using such a material as PVC or rubber, and the production cost of the resonator 44 can be suppressed [0017]
FIG. 6 is a schematic view illustrating a manner of

assembly of the resonator of the air cleaner apparatus according to the present invention.
First, the opening 44c of the resonator 44 is fitted with the annular projection 52b of the case body
52 as indicated by an arrow mark (1). Since the uneven portion is provided on the inner circumferential face of the opening 44c, the opening 44c can mesh firmly the annular projection 52b and the resonator 44 can be secured with certainty to the case body 52. [0018]
Then, the air cleaner cover 46 is attached to the case body 52, whereupon the receiving portion 44f of the resonator 44 is simultaneously held by the projection 46b of the air cleaner cover 46 as indicated by an arrow mark

(2)
[0019]
Since the opening 44c can be fitted with the annular projection 52b, the resonator 44 is prevented from letting off the case body 52 and need not be held by a hand until the air cleaner cover 46 is attached to the case body 52, and consequently, the operability in assembly can be improved. [0020]
As described above with reference to FIG. 4, the

present invention is characterized in that the air cleaner case 41 is formed from the case body 52 and the cover 46 separable from each other, and the resonator 44 is held between the case body 52 and the cover 46 so as to be built in the air cleaner apparatus. [L0021]
Since the resonator 44 is held by and between the case body 52 and the air cleaner cover 46, it is not necessary, for example, to adhere the resonator to the case body or the cover using a bonding agent or to attach the resonator using a fastening member such as a screw, and the resonator 44 can be attached simply to the air cleaner apparatus 23 (refer to FIG. 3). Accordingly, the necessity for a bonding agent or a fastening member such as a screw is eliminated, and the production cost of the air cleaner apparatus 23 can be reduced and the number of man-hours for assembly of the air cleaner apparatus 23 can be reduced. [0022]
The present invention is characterized further in that the resonator 44 is a cup-shaped resonator having no bottom face and has connected thereto the communicating pipe 44b in which the communicating hole 44d is perforated, and the annular projection 52b for fitting

with the opening 44c of the resonator 44 is provided on one of the case body 52 and the air cleaner cover 46 while the projection 46b for holding the receiving portion 44f of the resonator 44 is provided on the other of the case body 52 and the air cleaner cover 46.
[0023]
By fitting the opening 44c of the resonator 44 with the annular projection 52b provided on one of the case body 52 and the air cleaner cover 46 and holding the receiving portion 44f of the resonator 44 with the projection 46b provided on the other of the case body 52 and the air cleaner cover 46, the resonator 44 can be secured with certainty within the air cleaner apparatus 23.
[0024]
It is to be noted that, while, in FIG. 6, the annular projection 52b for fitting with the opening 44c of the resonator 44 is provided on the case body 52 while the projection 46b for holding the receiving portion 44f of the resonator 44 is provided on the air cleaner cover 46, it is otherwise possible to provide an annular projection for fitting with the opening 44c of the resonator 44 on the air cleaner cover 46 and provide a projection for holding the receiving portion 44f of the

resonator 44 on the case body 52. [0025] [Effects of the Invention]
Since the present invention has the configuration described above, it exhibits the following effects.
The air cleaner apparatus for a motorcycle of claim
1 is configured such that an air cleaner case is formed
from a case body and a cover separable from each other,
and a resonator is held between the case body and the
cover so as to be built in the air cleaner apparatus.
Therefore, it is not necessary, for example, to adhere
the resonator to the case body or the cover using a
bonding agent or to attach the resonator using a
fastening member such as a screw, and the resonator can
be attached simply to the air cleaner apparatus.
Accordingly, the necessity for a bonding agent or a
fastening member such as a screw is eliminated, and the
production cost of the air cleaner apparatus can be
reduced and the number of man-hours for assembly of the
air cleaner apparatus can be reduced.
[0026]
The air cleaner apparatus for a motorcycle of claim
2 is configured such that the resonator is a cup-shaped
resonator having no bottom face and has connected thereto


a communicating pipe in which a communicating hole for communicating the inside and the outside of the resonator is perforated, and a seat for fitting with a bottom of the resonator is provided on one of the case body and the cover while a holding portion for holding the resonator
is provided on the other of the case body and the cover. Therefore, the resonator can be secured with certainty within the air cleaner apparatus.
[Description of Reference Characters]
10 ... motorcycle, 41 ... air cleaner case, 44 ... resonator, 44b ... communicating pipe, 44c ... bottom of resonator (opening) , 44d ... communicating hole, 46 ... cover (air cleaner cover) , 46b ... holding portion (projection), 52 ... case body, 52b ... seat (annular projection).





[Claim 1] An air Cleaner apparatus for a motorcycle,
characterized in that an air-cleaner case is formed from

a case body and a cover separable from each other,,and a
resonator is held between said case bodyand said cover •
so as to be built in said air cleaner apparatus.

[Claim 2] An air cleaner apparatus for a motorcycle according to claim 1 -characterized in that said resonator is a cup--shaped resonator having no bottom face and has connected thereto -a communicating pipe in which a communicating hole for communicating.the inside and the outside of said resonator is perforated, and a seat for fitting with a bottom of said resonator is provided on one of said case body and said cover while a holding portion for holding said 'resonator' is provided on" the other of said case body and said cover-






















16






3. An air cleaner apparatus for a motorcycle substantially as herein described with reference to the accompanying drawings'"









17



Documents:

201-mum-2002- abstract(4-3-2002).doc

201-MUM-2002-ABSTRACT(24-3-2008).pdf

201-mum-2002-abstract(4-3-2002).pdf

201-mum-2002-abstract(amended)-(24-3-2008).pdf

201-MUM-2002-ABSTRACT(GRANTED)-(9-8-2011).pdf

201-mum-2002-cancelle page(24-3-2008).pdf

201-mum-2002-cancelled pages(24-3-2008).pdf

201-mum-2002-claims(4-3-2002).doc

201-mum-2002-claims(4-3-2002).pdf

201-mum-2002-claims(complete)-(4-3-2002).pdf

201-MUM-2002-CLAIMS(GRANTED)-(9-8-2011).pdf

201-mum-2002-clams(amended)-(24-3-2008).pdf

201-MUM-2002-CORRESPONDENCE(15-5-2009).pdf

201-mum-2002-correspondence(20-3-2008).pdf

201-mum-2002-correspondence(24-3-2008).pdf

201-MUM-2002-CORRESPONDENCE(5-9-2011).pdf

201-mum-2002-correspondence(ipo)-(25-4-2007).pdf

201-MUM-2002-CORRESPONDENCE(IPO)-(9-8-2011).pdf

201-mum-2002-description(complete)-(4-3-2002).pdf

201-MUM-2002-DESCRIPTION(GRANTED)-(9-8-2011).pdf

201-mum-2002-drawing(4-3-2002).pdf

201-mum-2002-drawing(amended)-(27-3-2002).pdf

201-MUM-2002-DRAWING(GRANTED)-(9-8-2011).pdf

201-mum-2002-form 1(24-3-2008).pdf

201-mum-2002-form 1(4-3-2002).pdf

201-MUM-2002-FORM 1(5-9-2011).pdf

201-MUM-2002-FORM 13(15-5-2009).pdf

201-mum-2002-form 13(24-3-2008).pdf

201-mum-2002-form 13(5-9-2011).pdf

201-mum-2002-form 18(10-2-2006).pdf

201-mum-2002-form 18(18-2-2006).pdf

201-mum-2002-form 2(4-3-2002).doc

201-mum-2002-form 2(4-3-2002).pdf

201-mum-2002-form 2(complete)-(4-3-2002).pdf

201-MUM-2002-FORM 2(GRANTED)-(9-8-2011).pdf

201-mum-2002-form 2(title page)-(4-3-2002).pdf

201-mum-2002-form 2(title page)-(complete)-(4-3-2002).pdf

201-MUM-2002-FORM 2(TITLE PAGE)-(GRANTED)-(9-8-2011).pdf

201-mum-2002-form 3(24-3-2008).pdf

201-mum-2002-form 3(4-3-2002).pdf

201-mum-2002-form 3(6-4-2004).pdf

201-mum-2002-form 5(4-3-2002).pdf

201-mum-2002-petition under rule 137(24-1-2008).pdf

201-mum-2002-petition under rule 137(24-3-2008).pdf

201-mum-2002-petition under rule 138(24-1-2008).pdf

201-mum-2002-petition under rule 138(24-3-2008).pdf

201-mum-2002-power of authority(20-3-2002).pdf

201-mum-2002-power of authority(20-5-2002).pdf

201-mum-2002-power of authority(24-3-2006).pdf

201-MUM-2002-POWER OF AUTHORITY(24-3-2008).pdf

201-mum-2002-power of authority(24-5-2008).pdf

201-mum-2002-specification(amended)-(24-3-2008).pdf


Patent Number 248708
Indian Patent Application Number 201/MUM/2002
PG Journal Number 32/2011
Publication Date 12-Aug-2011
Grant Date 09-Aug-2011
Date of Filing 04-Mar-2002
Name of Patentee HONDA GIKEN KOGYO KABUSHIKI KAISHA
Applicant Address 1-1, MINAMIAOYAMA 2-CHOME, MINATO-KU, TOKY0.
Inventors:
# Inventor's Name Inventor's Address
1 HIDEHIKO NUMATA C/O KABUSHIKI KAISHA HONDA GIJUTSU KENKYUSHO, 4-1, CHUO 1-CHOME, WAKOSHI, SAITAMA.
2 HIDEAKI TOZAWA C/O KABUSHIKI KAISHA HONDA GIJUTSU KENKYUSHO, 4-1, CHUO 1-CHOME, WAKOSHI, SAITAMA.
3 EIJI KINBARA C/O KABUSHIKI KAISHA HONDA GIJUTSU KENKYUSHO, 4-1, CHUO 1-CHOME, WAKOSHI, SAITAMA.
PCT International Classification Number F02M 35/14
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 2001-089839 2001-03-27 Japan