Supports – Resilient support – Including three or more circumferentially arranged resilient...
Reexamination Certificate
2001-04-06
2002-12-17
Ramirez, Ramon O. (Department: 3632)
Supports
Resilient support
Including three or more circumferentially arranged resilient...
C248S638000, C248S903000, C248S562000
Reexamination Certificate
active
06494430
ABSTRACT:
CROSS REFERENCE TO RELATED APPLICATION
This application is based on and incorporates herein by reference Japanese Patent Application No. 2000-124337 filed on Apr. 25, 2000.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a motor holder for holding a motor.
2. Description of Related Art
A motor holder for holding a vehicular blower motor to be secured to a vehicle body has been generally manufactured from an iron plate material. However, recently, a resin material is predominantly used for manufacturing the motor holder for the purposes of weight reduction and standardization.
One example of such a motor holder will be described with reference to
FIGS. 7 and 8
.
FIG. 7
is a front view of a previously proposed motor holder
21
and a blower motor
20
received in the motor holder
21
.
FIG. 8
is a bottom plan view of the motor holder
21
(seen in a direction of an arrow A in FIG.
7
).
With reference to
FIG. 7
, a motor case
22
of the blower motor
20
is a generally cylindrical hollow body. An armature (not shown) is rotatably supported within the motor case
22
via a rotatable shaft
23
. Magnets (not shown) for generating a rotational force of the armature are secured to an inner peripheral surface of the motor case
22
.
The motor holder
21
is made of a resin material. Furthermore, as shown in
FIGS. 7 and 8
, the motor holder
21
includes a motor housing segment
25
for receiving the blower motor
20
, a venturi ring segment
26
and a plurality of connecting members
27
that connect the motor housing segment
25
to the venturi ring segment
26
. With reference to
FIG. 8
, the venturi ring segment
26
is constructed to circumferentially surround an outer peripheral surface of the motor housing segment
25
. The connecting members
27
extend radially outwardly from the outer peripheral surface of the motor housing segment
25
. Radially outer ends of the connecting members
27
are connected to the venturi ring segment
26
.
In the motor holder
21
, a thickness of each segment is minimized (1-3 mm thick) to achieve both the weight reduction of the motor holder
21
and the improved moldability of the resin material. Since the thin resin material that has a lower rigidity than the iron plate material is used in manufacturing of the motor holder
21
, the motor holder
21
is prone to generate vibrational noise during operation of the blower motor
20
. However, as described above, the radial connecting members
27
are formed to extend in the radial direction in the motor holder
21
. Thus, the rigidity of the motor holder
21
is improved, so that the vibrational noise generated during the operation of the blower motor
20
is reduced.
However, as shown in
FIG. 8
, in the motor holder
21
having the radial connecting members
27
, although the rigidity in an axial direction (direction of an arrow B in
FIG. 7
) is fairly sufficient, the rigidity in a circumferential direction (direction of an arrow C in
FIG. 8
) is insufficient, so that relatively large vibrational noise can still be generated. Thus, there is still a need to further reduce the vibrational noise.
SUMMARY OF THE INVENTION
The present invention addresses the above disadvantages. Thus, it is an objective of the present invention to provide a motor holder having a reduced vibrational noise level during operation of a motor that is received in the motor holder.
To achieve the objective of the present invention, there is provided a motor holder for holding a motor. The motor holder includes a motor housing segment, a plurality of radial connecting members and a venturi ring segment. The motor housing segment receives and supports the motor. The radial connecting members extend radially outwardly from an outer peripheral surface of the motor housing segment. The venturi ring segment is connected to radially outer ends of the radial connecting members and circumferentially surrounds the motor housing segment. The motor holder further includes a plurality of oblique connecting members. Each one of the oblique connecting members is arranged between and is connected to each adjacent two radial connecting members. Furthermore, each one of the oblique connecting members is oblique to a radial direction that extends from the motor housing segment.
REFERENCES:
patent: 1611795 (1926-12-01), Warner
patent: 2881995 (1959-04-01), Neher
patent: 2951634 (1960-09-01), Koch
patent: 3239185 (1966-03-01), Sweeney
patent: 4200257 (1980-04-01), Litch
patent: 4293114 (1981-10-01), Lykes
patent: 5460485 (1995-10-01), Sugiyama et al.
patent: 5466120 (1995-11-01), Takeuchi et al.
patent: 5533704 (1996-07-01), Fischinger
patent: 5878990 (1999-03-01), Delire
patent: 6036444 (2000-03-01), Barney
patent: 6139265 (2000-08-01), Alizadeh
patent: 6158979 (2000-12-01), Couetoux
patent: 6189873 (2001-02-01), Aoki
patent: 6360703 (2002-03-01), Rahbar
patent: 19504970 (1996-08-01), None
patent: 0900941 (1999-03-01), None
patent: U-53-33971 (1951-08-01), None
patent: U-55-148365 (1954-10-01), None
patent: U-51-127315 (1976-11-01), None
patent: A-2-131724 (1990-05-01), None
patent: A-5-149292 (1993-06-01), None
patent: A-6-280799 (1994-10-01), None
Asmo Co. Ltd.
Law Offices of David G. Posz
Ramirez Ramon O.
Sterling Amy J.
LandOfFree
Motor holder including radial and oblique connecting members does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Motor holder including radial and oblique connecting members, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor holder including radial and oblique connecting members will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2970059