U.S. patent application number 11/588402 was filed with the patent office on 2008-05-01 for shield device of exhaust pipe.
Invention is credited to Chin-Chi Liu.
Application Number | 20080098721 11/588402 |
Document ID | / |
Family ID | 39328499 |
Filed Date | 2008-05-01 |
United States Patent
Application |
20080098721 |
Kind Code |
A1 |
Liu; Chin-Chi |
May 1, 2008 |
Shield device of exhaust pipe
Abstract
A shield device for an exhaust pipe includes a socket, a shield
board and a fastening device. The socket defines a connecting
portion extending crookedly downwards from two ends thereof The
socket is attached onto the exhaust pipe by the connecting portion.
A shield board defines a shield piece and a plug. A fastening
portion extends backwards from the shield piece. The plug is set on
the inside wall of the shield piece, and the fastening device is
set on the fastening portion of the shield piece. The shield board
is attached onto the exhaust pipe by inserting the plug into the
socket and fixing the fastening device onto the exhaust pipe. The
shield device is easily assembled, its appearance is attractive,
and the shield device and the exhaust pipe are integrated together
stably. The shield device isn't prone to shaking, noise is reduced,
and its life-span is protracted.
Inventors: |
Liu; Chin-Chi; (Taipei,
TW) |
Correspondence
Address: |
ROSENBERG, KLEIN & LEE
3458 ELLICOTT CENTER DRIVE-SUITE 101
ELLICOTT CITY
MD
21043
US
|
Family ID: |
39328499 |
Appl. No.: |
11/588402 |
Filed: |
October 27, 2006 |
Current U.S.
Class: |
60/272 ;
60/298 |
Current CPC
Class: |
F01N 13/14 20130101;
F01N 2590/04 20130101; F01N 2260/20 20130101 |
Class at
Publication: |
60/272 ;
60/298 |
International
Class: |
F01N 7/14 20060101
F01N007/14; F01N 3/00 20060101 F01N003/00 |
Claims
1. A shield device for an exhaust pipe, comprising: at least one
socket defining a connecting portion extending crookedly downwards
from two ends thereof, A shield board defining a shield piece and
at least one plug, at least one fastening portion extending
backwards from the shield piece, the plug is welded onto inside
wall of the shield piece, and at least one fastening device
attached on the fastening portion of the shield piece, the shield
board is attached onto the exhaust pipe by inserting the plug into
the socket and fixing the fastening device onto the exhaust
pipe.
2. The shield device for an exhaust pipe as claimed in claim 1,
wherein the connecting portion of the socket is welded onto the
exhaust pipe.
3. The shield device for an exhaust pipe as claimed in claim 1,
wherein the fastening device defines a C-shaped loop and a
fastening piece, the fastening piece has a screw and a screw cap,
the C-shaped loop has two free ends, the fastening piece passes
through the free ends of the C-shaped loop.
4. The shield device for an exhaust pipe as claimed in claim 1,
wherein the plug is welded onto an inside wall of the shield piece.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a shield device for an
exhaust pipe, and more especially to an improvement of the
structure of the shield device for the exhaust pipe that integrates
the shield device and the exhaust pipe together firmly, making the
shield device less prone to shaking; thereby noise is reduced,
life-span is protracted, assembling is easy, and the overall
appearance of the device is more attractive.
[0003] 2. Description of the prior art
[0004] An exhaust pipe used on a motorcycle leads exhaust gas out
from an engine to a silencer, and then outside of the device. The
surface temperature of the exhaust pipe is increased after a period
of time although the obstruction of the pipe wall because the
temperature of the gas exhausted from the engine may be as high as
a several hundred degrees Celsius. As such, it is easy for a user's
leg to be burnt accidentally as they dismount from the motorcycle.
Furthermore, the exhaust pipe is oxidized for/by the high
temperature, which makes a layer of black oxide form on the surface
of the exhaust pipe; thus, the appearance of the exhaust pipe is
spoiled.
[0005] At present, these problems may be solved by a shield device
for an exhaust pipe on motorcycles, as shown in FIG. 1, an inverted
U-shaped metal piece 81 having a screw hole 811 is attached onto an
exhaust pipe 9, then a shield board 8 is locked onto the inverted
U-shaped metal piece 81 by a screw 7.
[0006] But, the process of fixing the shield board 8 onto the
inverted U-shaped metal piece 81 by the screw 7 is difficult, and
the appearance of the shield device for the exhaust pipe is spoiled
because the screw 7 extends outward from the shield board 8.
Moreover, the shield board 8 is attached by the screw 7 which means
the screw 7 must bear the weight of the shield board 8. However,
over time and due to the bumps, the shield board 8 will be loosen
and begin to shake relative to the exhaust pipe 9 and generate
rattling noises. Thereby, the life-span of the shield board 8 is
shortened.
[0007] Hence, the inventor of the present invention believes that
these shortcomings above are able to be improved upon and finally
suggest the present invention.
SUMMARY OF THE INVENTION
[0008] An object of the present invention is to provide a shield
device for an exhaust pipe, the shield device is easily assembled,
its appearance beautiful, and the integration of the shield device
and the exhaust pipe is stable. The shield device is less prone to
shaking, noise is reduced, and the device's life-span is
protracted.
[0009] To achieve the above-mentioned object, the shield device for
an exhaust pipe in accordance with the present invention is
disclosed. The shield device has at least one socket defining a
connecting portion extended crookedly downwards from two ends
thereof, the socket is attached onto the exhaust pipe by the
connecting portion; a shield board defines a shield piece and at
least one plug, a fastening portion extends backwards from the
shield piece, the plug is welded on the inside wall of the shield
piece, and at least one fastening device is set on the fastening
portion of the shield piece, the shield board is attached onto the
exhaust pipe by inserting the plug into the socket and fixing the
fastening device onto the exhaust pipe.
[0010] To further understand features and technical contents of the
present invention please refer to the following detailed
description and drawings related the present invention. However,
the drawings are only to be used as references and explanations,
not to limit the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] FIG. 1 is an exploded isometric view of an exhaust pipe of
the prior art;
[0012] FIG. 2 is an exploded isometric view of a shield device for
an exhaust pipe of the present invention;
[0013] FIG. 3 is an isometric view of a shield device for an
exhaust pipe of the present invention;
[0014] FIG. 4 is an assembled isometric view of a shield device for
an exhaust pipe of the present invention;
[0015] FIG. 5 is a cutaway view of a shield device for an exhaust
pipe of the present invention;
[0016] FIG. 6 is an exploded isometric view of a shield device for
an exhaust pipe of another embodiment of the present invention;
[0017] FIG. 7 is an exploded isometric view of a shield device for
an exhaust pipe of a third embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[0018] Referring to FIGS. 2 to 5, a shield device for an exhaust
pipe of the present invention is shown. The shield device for an
exhaust pipe includes a socket 1, a shield board 2, and at least
one fastening device 3. The socket 1 is shaped by punching a piece
of metal, the socket 1 defines a support portion 11 on the center
thereof, and a connecting portion 12 extends crookedly downwards
from two ends thereof.
[0019] The shield board 2 defines a shield piece 21 and at least
one plug 22. At least one fastening portion 211 extends backwards
from the shield piece 21. At least one plug 22 is welded onto the
inside wall of the shield piece 21. A plug portion 221 extends
crookedly onwards from the plug 22.
[0020] The fastening device 3 defines a C-shaped loop 31 and a
fastening piece 32. The C-shaped loop 31 has two free ends 311. The
fastening piece 32 passes through the free ends 311 of the C-shaped
loop 31. The fastening piece 32 includes a screw and a screw
cap.
[0021] The socket 1 is attached onto the exhaust pipe 4 by the
connecting portion 12 that is welded onto the exhaust pipe 4. The
plug portion 221 of the plug 22 is inserted into the support
portion 11 of the socket 1 to attach the shield board 2. The
C-shaped loop 31 of the fastening device 3 surrounds the fastening
portion 211 of the shield piece 21. Two free ends 311 of the
C-shaped loop 31 are attached onto the exhaust pipe 4 by tightening
the fastening piece 32.
[0022] Referring to FIG. 6, another embodiment of the present
invention is shown. The exhaust pipe 4a defines a thick pipe and
two thin pipes. The two thin pipes extend from the thick pipe. A
plurality of sockets la is disposed on the thick pipes and the thin
pipes of the exhaust pipe 4a respectively. A shield board 2a, whose
shape corresponds to the exhaust pipe 4a, is attached onto the
exhaust pipe 4a by being inserted onto the plurality of sockets
1a.
[0023] Referring to FIG. 7, a third embodiment of the present
invention is shown. The shield board 2b and 2b' are
departed/separated, the shield board 2b and the shield board 2b'
are connected by connecting reciprocally the socket 1b and the plug
22b'. The plug 22b of the shield board 2b and the plug 22b' of the
shield board 2b' are inserted into the socket 1a of the exhaust
pipe 4a.
[0024] The shield board 2 of the present invention is attached by
inserting the plug 22 into the socket 1. It is not necessary that
the screw 7 passes through the shield piece 21 to attach onto the
exhaust pipe 4. As such, assembling is easy, and the appearance is
more attractive, and no noise is caused by the screw 7
loosening.
[0025] What is disclosed above is only the preferred embodiment of
the present invention, and therefore it is intended that the
present invention not be limited to the particular embodiment
disclosed. It should be understood by those skilled in the art that
various equivalent changes may be made depending on the
specification and the drawings of present invention without
departing from the scope of the present invention.
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