Cover member attachment structure

Details Cover member attachment structure Cover member attachment structure

2000-10-25

2002-08-27

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

Having vibration attenuating, or expansion and contraction...

C060S272000, C060S320000, C060S323000, C060S312000, C138S110000, C123S184210, C123S1950HC, C180S309000, C181S243000, C181S207000

Reexamination Certificate

active

06438949

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the invention
The present invention relates to a cover member attachment structure for reducing the number of parts through elimination of a welding step and so on.
2. Description of Background Arts
An example of cover members, which cover the respective sections of a vehicle, is a heat shielding panel to be attached to an exhaust pipe or a silencer, which communicates with an engine. Known examples of a heat shielding panel attachment structure include, for example, (1) “a motorcycle exhaust pipe device” disclosed in Japanese Patent Publication No. Hei 2-26045, and (2) a structure for attaching a heat shielding panel to a bracket using a screw, the bracket being attached to an exhaust pipe.
The art (1) discloses, as shown in
FIG. 5
of the publication, an exhaust pipe device, in which the external circumferential surface of a single pipe
11
is clamped by a first band
16
1
, which is attached to a heat shielding panel
15
via a spacing panel
17
, and a second band
16
2
, which communicates with the first band
16
1
. The respective ends of the first band
16
1
and the second band
16
2
are attached, using a bolt
22
and a nut
23
, to a positioning projected piece
24
, projecting from the external circumferential surface of the single pipe
11
, whereby the heat shielding panel
15
is attached to the single pipe
11
.
The above mentioned art (2) will be described referring to
FIG. 8
which is a cross-sectional view explaining a conventional cover member attachment structure, showing a state in which a bracket
102
, having an inverted C-shaped cross section and a nut
101
welded on the inner surface thereof, is welded on the external circumferential surface of the exhaust pipe
103
. A screw
107
is inserted through an attachment hole
105
, formed on a heat shielding panel
104
, which serves as a cover member. A piercing hole
106
is formed on the bracket
102
and then screwed into the nut
101
. The exhaust pipe
103
is attached to the heat shielding panel
104
.
According to the art (1), as the first band
16
, and the spacing panel
17
, and the spacing panel
17
and the heat shielding panel
15
are respectively welded, the heat shielding panel
15
and the first band
16
, may possibly be distorted due to the heat caused during the welding process. Therefore, careful welding is required for minimizing the distortion.
In addition, as a bolt
22
and a nut
23
are used for securing the first band
16
, and the second band
16
2
to the single pipe
11
, the number of parts is increased, resulting in a cost increase.
According to the art (2), as the nut
101
is welded so as to correspond to the piercing hole
106
, and the bracket
102
is welded on a predetermined position on the exhaust pipe
103
, positioning of the nut
101
and the bracket
102
is required and an increased number of welding steps must be applied. This makes it difficult to improve productivity.
SUMMARY AND OBJECTS OF THE INVENTION
In light of the above, the object of the present invention is to provide a cover member attachment structure for improving productivity through the elimination of a welding step and so on. In addition, an object of the present invention is to reduce the number of parts and thus suppress the increase in cost through the abolishment of the use of bolts and nuts.
In order to achieve the above object, in a cover member attachment structure for attaching a cover member to an object to be shielded for the purpose of improving appearance, suppressing heat propagation, preventing solid or liquid scattering, preventing invasion to or leakage from the inside, and so on, the cover member is attached to the object to be shielded using a spring member
A spring member is used in attaching a cover member to an object to be shielded, rather than through welding or using bolts and nuts.
As a result, distortion on the heat shielding panel, which would be caused when attaching a cover member through welding and so on, is not caused. In addition, a step of positioning a bracket, which would be required in welding a bracket to an object to be shielded, can be omitted. Further, as no bolt and nut is used, the number of parts can be reduced.
According to the present invention, the cover member is a member to be attached to a part of an intake and exhaust system, which communicates with an engine.
When attaching, for example, an air cleaner case cover or a heat shielding panel as a cover member to a part of an intake and exhaust system, a spring member is used.
As a result, for an air cleaner case cover, for example, vibration can be efficiently suppressed by means of elastic force of the spring member.
For a heat shielding panel, when a spring member is made detachable, should the spring member be worn out due to heat, the spring member can be easily exchanged.
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.


REFERENCES:
patent: 3237716 (1966-03-01), Parsons
patent: 3677365 (1972-07-01), Wright et al.
patent: 3863445 (1975-02-01), Heath
patent: 3946764 (1976-03-01), Hubbell, III
patent: 3977486 (1976-08-01), Kleinschmit
patent: 4031700 (1977-06-01), Yamazaki et al.
patent: 4085816 (1978-04-01), Amagai et al.
patent: 4266725 (1981-05-01), Schweikl et al.
patent: 4349078 (1982-09-01), Shimada et al.
patent: 5464952 (1995-11-01), Shah et al.
patent: 5649510 (1997-07-01), Linze
patent: 5680757 (1997-10-01), Pirchl
patent: 5844177 (1998-12-01), Pirchl
patent: 5966933 (1999-10-01), Ishihara et al.
patent: 6058702 (2000-05-01), Jorg Alexnat et al.
patent: 6141958 (2000-11-01), Voss
patent: 6302466 (2001-10-01), Zwick
patent: B2226045 (1990-06-01), None

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