JPS5833997Y2 - Hot air machine - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a hot air machine that has been improved to prevent the hose from accidentally coming off the hot air outlet of the main body of the hot air machine.

For example, in a futon dryer, hot air from a hot air fan is guided to the futon through a hose, but the hose is removably connected to the hot air outlet of the hot air fan by fitting, and is detached by the fitting force based on friction. The configuration was such that it was maintained so that it would not occur.

However, when the hose is warmed by hot air, the fit with the hot air outlet becomes loose due to thermal expansion, causing the hose to come off and making it impossible to supply hot air to the futon.

Therefore, an object of the present invention is to provide a hot air blower that can reliably hold the hose in a connected state and prevent it from accidentally coming off even if the fitting with the hot air outlet becomes loose due to thermal expansion of the hose. It is in.

An embodiment in which the present invention is applied to a futon dryer will be described below with reference to the drawings.

1 is a mattress and 2 is a quilt.

3 is a sheet cut from highly airtight cloth or vinyl chloride, etc., and the surrounding part is folded back to a width of about 15 to 20 cm.In the center of the folded part on the - side, there is a A hose port 4 is formed.

Reference numeral 5 denotes a warm air fan main body, and an end plate 6 attached to the open end of this main body has a hose insertion lower part formed therein.

Reference numeral 8 denotes a hot air outlet body having a flange 8a integrally extended to the base part, which is formed into a cylindrical shape with a smaller diameter than the inner diameter of the hose insertion lower, and is inserted into the hose insertion lower from the inside of the hot air fan body 5 at a predetermined position. The flange 8a is inserted loosely with a gap.
is fixed to a plurality of bosses 5a (only one is shown) protruding from the back surface of the end plate 6 with screws 9.

Reference numeral 10 denotes a hot air generator disposed inside the hot air fan body 5, which includes a fan casing 11 and a fan casing 11.
A blower fan 12 provided therein and rotated by a motor (not shown) and a discharge port 11 of the fan casing 11
It consists of an electric heater 13 provided in the fan casing 11 and a hot air outlet body 8.
The screws 14 are used to abut against the proximal ends of the screws 14 and fix the screws 14.

15 is a wire spring bent into a bifurcated substantially U-shape, for example;
The two opposite sides 15a and 15b of this are inserted from above into two sets of small holes 7a and 7b formed in pairs (four in total) vertically on corresponding sides of the hose insertion lower peripheral wall, for example, on both the left and right sides, respectively. The intermediate portions of the two opposing sides 15a and 15b are positioned in the hose insertion lower so as to face each other with the hot air outlet body 8 in between.

16 is a protrusion that is integrally provided on the back side of the end plate 6 and prevents the wire spring 15 from moving upward; 17 is a hose insertion lower forming portion of the hot air blower body 5 at the flange portion 8a of the hot air outlet body 8; This is a protruding piece serving as a pressing portion extending toward the plate 6, and this protruding piece 17 is attached to two opposing sides 15a of the wire spring 15,
An intermediate portion continuous to both sides of the hot-air fan 15b, that is, a central portion of one remaining side, is pressed and fixed to the end plate 6 of the hot air fan main body 5.

Reference numeral 18 denotes a bellows-shaped hose whose one end is connected to the hot air outlet body 8 and the other end is connected to the hose port 4 of the seat 3; A receptacle body 19 is attached to the receptacle body 19, and an engagement groove 20, which is an engagement recess, is formed on the outer periphery of the distal end of the receptacle body 19 over the entire circumference, and the diameter of the distal end side of the retaining groove 20 is gradually increased. It is formed into a substantially tapered shape.

And, two opposing sides 15 a , 15 of the wire spring 15
b are located in the hose insertion lower with a spacing smaller than the outer diameter of the insertion port 19 of the hose 18.

In use, the sheet 3 is sandwiched between the mattress 1 and the quilt 2 as shown in Fig. 1, and the hose 1 is
8 is removably connected to the hose port 4 of the sheet 3, and one end, that is, the insertion port body 19 is inserted into the hose insertion lower so as to fit into the hot air outlet body 8.

Then, the two opposing sides 15 a and 15 b of the wire spring 15 are expanded by the tapered portion 19 a on the distal side of the engagement groove 20 as the insertion port body 19 is inserted, and are elastically expanded and deformed. , and when it encounters the engagement groove 20, it is restored by elastic force and removably engages with the retaining groove 20, so that the insertion port body 19 is removably connected to the hot air outlet body 8.

When the hot air generator 10 is operated in this state, hot air is supplied to the sheet 3 via the hose 18, thereby drying the mattress 1 and the comforter 2.

By the drying operation as described above, the hot air outlet body 8 and the insertion port body 19 are gradually heated, and the degree of fitting of the insertion body 19 to the hot air outlet body 8 becomes loose due to the difference in thermal expansion between the two. , the fitting force of the receptacle body 19 is reduced, but even in this case, the receptacle body 19 is prevented from coming out due to the engagement of the wire spring 15 with the engagement groove 20.
There is no risk that the hot air outlet body 8 will accidentally come off and come off due to wind pressure or the like.

In addition, in order to remove the socket body 19 from the hot air outlet body 8 after the futon has been dried, it is sufficient to pull the socket body 19 to the right in FIG. Since the two opposing sides 15a and 15b are elastically expanded and deformed and removed from the engagement groove 20, the insertion port body 19 can be easily removed.

According to the above configuration, even if the degree of fitting of the receptacle body 19 becomes loose, the wire spring 15 can prevent the receptacle body 19 from being unintentionally removed.

Moreover, as the wire spring 15, its two opposing sides 15a,
15b through a pair of small -7L7a, 7a and position it in the hose insertion lower, and the remaining side is connected to the hot air outlet body 8.
Measurements can be made simply by pressing the protrusion 17 protruding from the end plate 6 of the hot-air fan body 5, so the fixing structure of the wire spring 15 is extremely simple, the number of parts is small, and the cost can be reduced. can.

The present invention is not limited to futon dryers, but can be widely applied to a structure for connecting a hose to a hot air outlet body of a hot air fan body.

As explained above, in the present invention, an engagement recess is formed on the outer periphery of one end of the hose that is detachably connected to the hot air outlet body, and the hot air blower body is elastically engaged with the engagement recess in a detachable manner. By providing a wire spring that is connected to the hot air outlet body, even if the degree of fitting of the hose to the hot air outlet body becomes loose due to thermal expansion, the hose can be maintained in a connected state by the retention of the wire spring to the engagement recess. In addition to reliably preventing the hose from coming off, the wire spring is bent into a bifurcated shape, and a pair of small holes are formed in the peripheral wall of the hose insertion port to allow the wire spring to pass through on two opposite sides. Since the air outlet body has a protruding pressing part that presses the middle part of the wire spring connected to both of the two opposing sides against the hot air fan body, the fixing structure of the wire spring is extremely simple and has a small number of parts. It is possible to provide a hot air fan that has an excellent effect of being able to reduce the price.

[Brief explanation of the drawing]

The drawings show an embodiment in which the present invention is applied to a futon dryer. Fig. 1 is a longitudinal cross-sectional view of the whole, Fig. 2 is a longitudinal cross-sectional view of a warm air fan with connected hoses, and Fig. 3 is a main part. Enlarged longitudinal cross-sectional view of
FIG. 4 is a longitudinal cross-sectional view taken from the direction of the arrow ``■■-■V'' in FIG. In the drawing, 3 is a seat, 5 is a hot air blower body, 7 is a hose insertion port, 7 a and 7 b are small holes, 8 is a hot air outlet body, 10
12 is a hot air generator, 12 is a blower fan, 13 is an electric heater, 15 is a wire spring, 17 is a protruding piece (pressing part), 18 is a hose, 19a is a tapered part, and 20 is a retaining groove (engaging recess). be.

Claims (1)

[Scope of utility model registration request] A hot air machine body has a hot air generator inside and has a hose insertion port formed at a predetermined portion, and a cylindrical shape having a smaller diameter than the inner diameter of the hose insertion port, and a predetermined gap is present in the hose insertion port in the hot air machine body. a hot air outlet body that is loosely inserted and blows out hot air from the hot air generator; a total of four small holes formed in pairs on each corresponding side of the peripheral wall of the hose insertion port; and the hot air outlet. a pressing part protruding from the body so as to extend toward the hose insertion port forming part of the hot air blower main body; and one end part is removably connected to the hot air outlet body by fitting and is engaged with the outer peripheral part of the one end part. The hose is formed into a substantially tapered shape with a concave portion and the diameter gradually decreases on the distal end side of the engagement concave portion, and the hose is bent into a bifurcated shape so that its two opposing sides pass through each of the pair of small holes. The intermediate portion of the hose, which is positioned within the hose insertion port with a spacing smaller than the outer diameter of the hose and which extends to both opposing sides, is pressed and fixed to the hot air blower body by the pressing portion, and the hose is connected to the hot air outlet body. A hot air fan comprising a wire spring whose two opposing sides are removably elastically engaged with the engagement recess when fitted.