JPS648196B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a blower with an oscillating device that blows warm air from a height of 5 to 10 meters above the ground surface onto the ground surface or trees in order to prevent frost damage to agricultural crops.

FIG. 1 shows a conventional blower of this kind, in which a swinging mechanism section 103 of the fan section consisting of a fan 101 and a fan motor 102 has the following construction. That is, the swinging mechanism section 103 is supported on a support arm 105 by a fan motor support shaft 104. The swing motor 106 of the swing mechanism section 103 has its rotating shaft protruding downward, and a crank mechanism 108 is provided at the tip of the rotating shaft. The fan motor 102 is driven to reciprocate and turn at a predetermined angle.

The swinging mechanism section 103 is covered with a drip-proof cover 109, and the fan motor 102 is covered with a drip-proof cover 109.
09 mounting base 110, and the air depression angle of the fan is determined by an arcuate groove 111 provided in the mounting base 110 and an adjustment bolt 112 inserted therein. In the figure, reference numeral 113 is a mounting post, 114 is a mounting bracket installed on the upper part of the mounting post 113, and the support arm 105 is supported by a connecting bolt 115.

In the configuration as described above, the fan motor 1
02 and the swinging mechanism section 103 are attached to the mounting bracket 114.
The support arm 105 is fixed to protrude laterally using
Since the fan 101 is configured to be pivotally supported at the tip of the fan 101, when the blower is at an angle of depression, the tip of the fan 101 enters under the base of the support arm 105 at both ends of the swing operation and approaches the lower end of the support arm 105. Because of this, there was a drawback that the swing angle could not be increased. In addition, in locations such as slopes and depressions, it is necessary to increase the angle of depression of the air to send air more downwardly, but in this case, the tip of the fan 101 comes even closer to the support arm 105, so there is a drawback that the angle of depression cannot be increased. It was hot.

Also, when installing the blower body, please use the mounting post 1.
13, and while holding the support arm 105 horizontally, connect the support arm 105 and the mounting bracket 11 with the connecting bolt 115.
4, the disadvantage was that it took a lot of time to install on the pole.

The present invention has been made in view of the above points, and includes a cylindrical mounting bracket for supporting the blower at the top of a mounting column, and a fan motor support fixed vertically upward on the top of the mounting bracket in a blower having a swinging mechanism. It consists of a shaft, an oscillation mechanism section having a oscillation reduction motor pivotally supported by the fan motor support shaft, and a drip-proof cover covering the oscillation mechanism section. A fan motor, which is driven to reciprocate and turn at a predetermined angle by the oscillation reduction motor, is attached to the tip of the fan so that it can be tilted downward, thereby solving the above-mentioned drawbacks of the conventional fan.

The embodiment will be described below based on FIGS. 2 and 3. FIG. 2 shows the entire structure of this embodiment, in which 1 is a fan motor equipped with a fan 2, 3 is a mounting bracket for mounting the blower on the top of a mounting column 4,
The swinging mechanism part 5 is a cylindrical metal fitting that is mechanically integrated.A tightening bolt 7 is screwed into a nut 6 that is drilled and fixed on the outer surface, and the tip of the tightening bolt 7 is attached to the surface of the mounting column 4. It is pressed and fixed. A fan motor mounting base 8 for fixing the fan motor 1 to the swinging mechanism section 5
has a U-shape whose upper part is fixed to the outer cover of the fan motor 1. A pair of through holes 9 and an arcuate groove 10 are bored on both sides of the fan motor 1 by passing the mounting bolts 11 through the through holes 9 and screwing them into the exterior of the swing mechanism section 5. An adjustment bolt 12 is pivotally supported by the swinging mechanism section 5, and its depression angle is screwed into the exterior of the swinging mechanism section 5 from the circular arc groove 10.
It can be adjusted by Therefore, the air blowing direction of the fan 2 is determined by the rotation angle of the swinging mechanism 5.
Adjustment bolt 12 in arcuate groove 10 for adjusting depression angle
It is determined by the fixed position of Note that 13 in the figure is a lead wire of the fan motor 1, and 14 is a power cord.

Next, the above-mentioned mounting bracket 3 and swinging mechanism section 5 will be explained based on FIG.

Reference numeral 15 denotes a fan motor support shaft having a mounting flange at its lower end, and is fixed with mounting bolts 16 to the top surface of a cylindrical mounting bracket 3 to which a top plate is fixed. The fan motor support shaft 15 is fixed to the bearing part 17 by penetrating the bearing part 17 and fitting the bearings 18 and 19 therein, and fittingly inserting the rocking plate 21 through the washer 20 and fixing it with a nut 22. The support plate 23 is pivotally supported. In this way, the mounting bracket 3 and the swinging mechanism section 5 are integrated with each other via the fan motor support shaft 15.

The oscillation reduction motor 24 is attached to the support plate 23 with its rotating shaft facing upward, and a crank 25 is fixed to the rotation shaft of the oscillation reduction motor 24.
The crank pin 27 of this crank 25 and the rocking plate 2
It is connected to the first connecting pin 28 by a rod 26, and this crank mechanism drives the swinging mechanism 5 to reciprocate in the left-right direction.

The swinging mechanism section is covered with drip-proof covers 29 and 30 divided into upper and lower parts, and the upper drip-proof cover 29 is
The area around where the oscillation reduction motor 24 is arranged is opened by making a large notch, and the lower end is made deep enough to appropriately cover the mounting bracket 3 to prevent raindrops from entering the bearing 18, and the opposite direction of the open notch is extended. It has a protruding box shape and is supported on the support plate 23 with mounting bolts 31. The fan motor mounting base 8 is fixed to the extended and protruding tip of the drip-proof cover 29. Therefore, the structure of Fan 2 is
Since it does not hit other members, the swing angle of the swinging mechanism 5 can be increased, which not only makes it possible to blow air in a larger semi-conical shape than ever before, but also allows the depression angle to be freely adjusted to a large angle. be able to. The lower drip-proof cover 30 that covers the notch opening of the upper drip-proof cover 29 is inserted into the upper drip-proof cover 29 from below, and has a U-shaped shape whose periphery is dimensioned to be inscribed in the upper drip-proof cover 29. and
It can be detachably supported using mounting bolts 32.

Reference numeral 33 in the figure indicates a cord bushing fitted into a through hole of the support plate 23, which protects the motor lead wire 13 and the insertion portion of the power cord 14.

In the above embodiment, the fan motor is attached to the tip of the drip-proof cover that protrudes long in the lateral direction, but it is also possible to attach the support arm of the required length to the drip-proof cover and attach the fan motor to the tip. In short, any fan may be used as long as it is comprised of a fan motor support member that supports the fan at a required distance from the mounting post, and an oscillation mechanism that causes the support member to swing at the top of the mounting post.

In the above configuration, when installing the blower,
It has a structure in which it can be fixed to the mounting column 4 by simply inserting the mounting bracket 3 from above and tightening the tightening bolt 7 from the side, and the mounting work can be completed in an extremely short time.

Furthermore, maintenance and inspection of the swinging mechanism section 5 can be done by removing the lower drip-proof cover 30 from the upper drip-proof cover 29; in this case, there is no need to remove the fan motor 1 or the upper drip-proof cover 29. it is obvious.

As described above, according to the present invention, the required mounting position of the fan motor is at the tip of the oscillating mechanism that extends and projects laterally from the mounting column, and in addition, the center of the rotational movement of the oscillating mechanism is on the mounting column. Since it is the upper part,
Even if the swing angle of the fan is increased, the fan will not hit any part of the blower component at either end. Therefore, compared to the conventional method, the air blowing range can be expanded, and the frost protection effect range per vehicle can be significantly expanded. Also, a fan motor support member,
Since the structure ensures a sufficient vertical gap distance with the fan, it is possible to increase the depression angle to a maximum of 90 degrees. Therefore, even when installed on a slope or depression, there is no need to manufacture a special blower with a large angle of depression.

During installation, the blower can be installed by simply inserting it into the top of the mounting column. A cylindrical mounting bracket with a tightening bolt not only greatly reduces the time required to work on a column, but also has the effect of reducing the number of parts, making manufacturing easier, and simplifying assembly.

[Brief explanation of drawings]

FIG. 1 is a vertical cross-sectional view illustrating a conventional blower, FIG. 2 is a side view of a blower according to an embodiment of the present invention, and FIG.
The figure is a partially cutaway sectional view of the swing mechanism and mounting bracket of the same blower. DESCRIPTION OF SYMBOLS 1... Fan motor, 2... Fan, 3... Mounting bracket, 5... Oscillating mechanism section, 15... Fan motor support shaft, 24... Swinging reduction motor, 29...
Upper drip-proof cover, 30...lower drip-proof cover.

Claims (1)

[Scope of Claims] 1. A blower mounting bracket mounted on the upper part of a mounting column, a swinging mechanism portion in which a crank mechanism for reciprocating the fan motor at a predetermined angle by a deceleration motor is covered with a drip-proof cover, and the above-mentioned mounting A fan motor is provided at an end of the oscillating mechanism part at a distance in the radial direction from the pillar that is larger than the radius of the fan of the fan motor, and is freely depressed via a mounting base. A blower with an oscillating device whose mechanical part is integrated with the fan motor support shaft. 2. Claim 1, wherein the mounting bracket is formed into a cylindrical shape and has a through threaded portion and a tightening bolt on the outer surface.
A blower with an oscillating device as described in Section 1. 3. The swing head according to claim 1, wherein the drip-proof cover is divided into an upper drip-proof cover that supports the fan motor, and a detachable lower drip-proof cover that is inserted into the upper drip-proof cover from below. Blower with device.