JPS6347818Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a hot-air heater in which combustion heat generated within the main body is blown out from a hot-air outlet provided on a front plate by a blower fan provided behind the main body.

[Technical background of the invention and its problems]

Inside the hot air outlet of this type of hot air heater, there are usually multiple horizontal louvers arranged at intervals in the vertical direction, and inside these, multiple vertical louvers are arranged at intervals in the horizontal direction. They are arranged side by side to maintain the same. In this case, the horizontal louvers are fixed, but each vertical louver is pivotally supported so as to be rotatable in the left and right directions, so that the direction of the hot air can be changed in any direction.

In conventional hot air heaters, the horizontal louver is installed inside the hot air outlet of the front panel, but the vertical louver and its rotation drive mechanism located inside the horizontal louver are provided on the main body side. If the movable louver for changing the wind direction is located on the main body side in this way, the mounting dimensions will vary depending on the combination with each part on the front plate side, making assembly difficult and increasing the number of man-hours.
Further, due to shock during transportation, various parts are likely to warp due to deformation between the parts and the front plate side, making it difficult to obtain smooth operation of each part, resulting in a lack of marketability.

Further, during the combustion operation, the exhaust gas generated in the main body is collected at the center of the air duct leading to the hot air outlet (the center of the outlet louver). On the other hand, when blowing air using a blower fan, it is difficult to obtain a uniform amount of air due to the structure of the propeller fan, and the amount of air mainly increases on both sides of the hot air outlet and decreases in the center. For this reason, when the angle of the vertical louver is changed, the combustion exhaust in the central part where the air volume is low cannot be sufficiently exhausted, resulting in poor exhaust gas, resulting in an increase in the amount of CO and an increase in internal temperature due to deterioration of exhaust gas characteristics. Problems such as this occurred, making it difficult to smoothly vary the blowing direction. In addition, since high-temperature combustion exhaust is concentrated in the center of the air outlet, if the angle of the vertical louver is set at an angle that increases the contact area with the exhaust, the surface temperature of the louver located in this area will become extremely high. I get used to it. For this reason, it is necessary to improve the heat resistance of the paint applied to the louvers, which is also a factor that increases costs.

[Purpose of invention]

An object of the present invention is to provide a hot air heater in which the exhaust characteristics of combustion exhaust gas are not adversely affected by the angle change of the louver for variable wind direction.

[Summary of the idea]

The present invention is a hot air heater in which combustion heat generated inside the main body is blown out from a hot air outlet provided on a front panel by a blower fan installed behind the main body, and the hot air heater is arranged in parallel inside the hot air outlet and in the left and right directions respectively. A drive mechanism that includes a plurality of louvers for variable wind direction that are pivotably supported to rotate toward the louvers, and a connecting plate that connects each of these louvers, and applies the rotational force in the horizontal direction to each louver via the connecting plate. and
By setting the distance from the pivot point of the louver located in the center of the hot air outlet to the connection point to the connecting plate to be larger than the same distance of the louvers located on both sides of the hot air outlet, the hot air outlet The rotation angle of the louver located in the center is made smaller than the rotation angle of the louvers located on both sides of the same, thereby eliminating the adverse effect on the exhaust characteristics of combustion exhaust caused by variable wind direction.

[Example of idea]

Hereinafter, the present invention will be described in detail with reference to an embodiment shown in the drawings.

In Fig. 1, 11 is the main body of the hot air heater;
The heat generated by the combustion of oil or the like inside is blown out as warm air from a warm air outlet 13 provided on the front plate 12 by a blower (not shown) provided at the back. Inside the warm air outlet 13, a plurality of horizontal louvers 14 are provided at intervals in the vertical direction. Reference numeral 15 denotes a wind direction variable operation knob, which changes the angle of the wind direction variable louver disposed inside the horizontal louver 14.

These detailed structures will be explained in detail below with reference to the drawings from FIG. 2 onwards.

Reference numeral 17 denotes a louver frame, which is provided along the inner circumferential surface of the hot air outlet 13, and is integrally attached to the inner circumferential surface member 13a with nails or the like, as shown in FIG. Then, as shown in FIG. 2, the horizontal louver 14 is
Fix and support with screws, etc. A plurality of louvers 20 (hereinafter referred to as louvers) for changing the wind direction are arranged in parallel in the width direction of the hot air outlet 13, and one side edge of the louvers is provided with a curl type louver as shown in Fig. 3. A support shaft 21 formed in the shape of a round column is provided. The support shafts 21 of these vertical louvers 20 are connected to the upper side 17A and the lower side 17 of the louver frame 17.
It is pivotably supported at B. That is, as shown in FIG. 4, the lower side portion 17B is provided with a support hole 17b that rotatably fits and holds the lower end of the support shaft 21, and the upper side portion 17A is provided with a support hole 17b as shown in FIG. As shown, a notch 17a is provided to rotatably hold the outer periphery of the upper end of the support shaft 21. In addition, a wire 22 is hung to prevent the support shaft 21 from coming off from within the notch 17a.
It's suppressed inside.

A connecting plate 24 is connected to a claw 25 provided on the lower side of each vertical louver 20, and by movement along the longitudinal direction, each vertical louver 20 is rotated about its support shaft 21.

Reference numeral 27 denotes a drive mechanism that includes the above-mentioned connecting plate 24 and rotates each vertical louver 20 via this connecting plate 24. This drive mechanism 27 will be explained in detail below. Reference numeral 28 is an adjustment plate, and the guide 2 is attached to the back side of the front plate 12.
9 so as to be able to slide in the lateral direction, and is integrally connected to the operating knob 15 provided on the front surface side through a slit 30 provided in the front plate 12 along the lateral direction. A drive shaft 31 extends integrally from the upper end of the support shaft 21 of one vertical louver 20, and its upper end bent portion 31a is connected to the drive piece 28a of the adjusting plate 28. This drive shaft 31 is the support shaft 21 of the vertical louver 20.
The vertical louvers 20 may be formed by integrating them by spot welding or caulking, or by curling the vertical louvers 20 together with the support shaft 21.

Note that the reference numeral 33 in FIG. 3 represents a duct for guiding hot air.

Here, among the vertical louvers 20 described above, the distance from the pivot point of the louver located in the center of the hot air outlet 13 to the connection point with the connecting plate 24 is the same as that of the louvers located on both sides of the hot air outlet 13. Set the distance to be larger than the distance by the dimension l.

In the above configuration, when changing the wind direction, the operating knob 15 is moved to the left or right. By this operation, the adjuster plate 28 also slides in the same direction, and the vertical louver 20 at the right end in the figure is rotated by a predetermined angle θ ₁ via the drive shaft 31 connected thereto. Since this vertical louver 20 is connected to other vertical louvers 20 via the connecting plate 24, all the other vertical louvers 20 also rotate with the above rotation. In this case, the distance from the pivot point of the vertical louver 20 located in the center of the hot air outlet 13 to the connection point is set to be larger by the dimension l than the same distance of the vertical louvers 20 located on both sides. Rotation angle θ ₂
is the rotation angle θ ₁ of the vertical louvers 20 located on both sides
smaller.

That is, even if an operation is performed to change the wind direction, the angle of the vertical louver 20 at the center of the hot air outlet 13 where high temperature combustion gas is concentrated does not change much, and the high temperature combustion exhaust gas is reliably led to the outside. On the other hand,
The vertical louvers 20 on both sides, where the air volume is large, rotate relatively widely. Therefore, the wind direction in this part changes greatly, and the high-temperature exhaust gas that is led out without changing much is diverted to a predetermined wind direction.

In this way, the rotation angle of the vertical louvers in the center, where the air volume is low, is made small, so that the high-temperature exhaust gas that concentrates in this area is not obstructed from being directed to the outside. , the high-temperature exhaust gas led out to the outside can be diverted in a predetermined direction.

In addition, each of the vertical louvers 20 is a horizontal louver 1.
4, the vertical louver 20 including the drive mechanism 27 can be supported by the front plate 12. Therefore, the vertical louver 2
0 and its drive mechanism 27 are provided on the main body 11 side, all of the problems that occurred in the conventional device can be eliminated, and assembly and adjustment are easy and reliable operability can be obtained. Further, since the louver frame 17 is shared as described above, there is no need to prepare a new member for supporting the vertical louver 20, and there is no need to make the thickness of the front plate 12 larger than that of the conventional device.

[Effect of idea]

As described above, according to the present invention, in a case where a louver for variable wind direction is provided inside the hot air outlet, when operating the variable wind direction, the rotation angle of the louver in the center where the air volume is small and high temperature exhaust is concentrated is small. In addition, the rotation angle of the louvers on both sides, where the air volume is high, is increased, so unlike conventional systems, changing the direction of the wind does not adversely affect the exhaust characteristics or cause the louvers in the center to become extremely hot. Moreover, sufficient wind direction function can be obtained.

[Brief explanation of the drawing]

Fig. 1 is an external view showing an embodiment of the hot air heater according to the present invention, Fig. 2 is a plan sectional view showing the inner configuration of the front plate in Fig. 1, and Fig. 3 is a side sectional view of Fig. 2. FIG. 4 is a perspective view showing the main part configuration of FIG. 3. 11...Main body, 12...Front plate, 13...Hot air outlet, 20...Louver for variable wind direction, 21...
... Support shaft, 24 ... Connection plate, 27 ... Drive mechanism.

Claims (1)

[Scope of utility model registration request] In a hot air heater, combustion heat generated inside the main body is blown out from a hot air outlet provided on the front panel by a blower fan installed behind the main body. comprising a plurality of movably pivoted louvers for variable wind direction, and a drive mechanism having a connecting plate connected to each of these louvers and applying the rotational force in the left and right direction to each louver via the connecting plate, The hot air is characterized in that the distance from the pivot point of the louver located in the center of the hot air outlet to the connection point to the connecting plate is set larger than the same distance of the louvers located on both sides of the hot air outlet. heater.