Warm-air blower for use with air-controlled bedding

Details Warm-air blower for use with air-controlled bedding Warm-air blower for use with air-controlled bedding

2001-10-12

2004-03-09

Trettel, Michael F. (Department: 3673)

Beds

With heating or cooling

C005S423000, C607S107000

Reexamination Certificate

active

06701552

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The inventors have invented a concept for air-controlled bedding that creates an ideal sleeping environment with appropriate temperature and humidity levels by blowing warm air or cool air into the bedding. The present invention relates to a warm-air blower for use in such air-controlled bedding.
2. Prior Art
As disclosed in Japanese Patent No. 2616857 (Japanese Patent Application Laid-Open No. H7-171037) and Japanese Patent Application Laid-Open No. H9-154669 (1997), the inventors have developed a concept for controlling the temperature and humidity of the sleeping environment to an appropriate level by blowing warm air or cool air between the quilt and the futon or air-controlled mat. However, a warm-air blower for achieving such a concept tends to be noisy and can cause the sleeper to feel thirsty.
SUMMARY OF THE INVENTION
The object of the present invention is to realize a warm-air blower for use with air-controlled bedding that operates more quietly and solves the problem of warm air causing thirst, thereby realizing a more comfortable sleeping environment.
In order to achieve the above objective, the air blower unit
1
has an air intake
2
near the left- or right-hand side of its front surface and optionally another air intake
2
at a corresponding position on its rear surface, and the air taken in from these air intakes
2
,
2
is led through the interior of the air blower unit
1
to a fan
3
which is positioned at a distance from said air intake(s)
2
, or more specifically, at the opposite end of the air blower unit from the air intake(s), and then blown out of the air blower from air outlets
5
,
6
after passing through a heater chamber
4
within an air-blow duct
15
.
The air outlets
5
,
6
are arranged one above the other, of which the upper outlet, i.e., air outlet
5
supplies warm air to the quilt
16
from the foot side. The lower outlet, i.e., air outlet
6
, supplies warm air to the futon, which is air controlled, or to the air-controlled mat
18
from the foot side. One of the air outlets
5
,
6
is equipped with a shutter
7
or
8
. Optionally, both of the air outlets
5
,
6
are equipped with shutters
7
,
8
. By providing these shutters
7
,
8
, it becomes possible to change the ratio of the volume of warm air supplied to the quilt and the volume of warm air supplied to the futon or air-controlled mat
18
to achieve an even more comfortable sleeping environment.
When using the warm-air blower of the present invention with a futon in a Japanese-style room, the air blower unit
1
can be simply placed near the foot side of the futon. When using it with a bed, however, it is safer to fix the blower unit onto the foot side of the bed frame
9
to prevent the possibility of the air blower unit
1
falling off the bed. For use with a care bed or a hospital bed with a mechanism for raising the bed surface, a mount
10
is established in such a way as to extend the foot side of the bed-raising mechanism
11
, and the air blower unit
1
is fixed to said mount
10
. In this way, the air blower unit
1
moves in accordance with the elevation of the bed, so the air outlets
5
,
6
of the air blower unit
1
do not become disconnected from airways
17
,
19
of the quilt and futon.


REFERENCES:
patent: 4777802 (1988-10-01), Feher
patent: 5044364 (1991-09-01), Crowther
patent: 5300098 (1994-04-01), Philipot
patent: 5730120 (1998-03-01), Yonkers, Jr.
patent: H7-171037 (1995-07-01), None
patent: H9-154669 (1997-06-01), None

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