JPS58131397A - Blower with oscillator - Google Patents

Abstract

PURPOSE:To enlarge an oscillating angle and enable to extend the range of an antifrosting effect, by a method wherein the fitting position for a fan motor is located at the tip of an oscillating mechanism part projectingly extended transversely form a fitting column, and the center of the mechanism part is provided on an upper part of the fitting column. CONSTITUTION:The fitting base 8 for a fan motor 1 is fixed to the projectingly extended tip of the drip-proof cover 29 for the oscillating mechanism part 5, and the center of the oscillating motion of the mechanism 5 is set at the upper part of the fitting column 5. Accordingly, since the fan 2 does not interfere with other members, the oscillating angle of the mechanism 5 can be enlarged, and the range of the antifrosting effect per one fan can be extended. In addition, since the fan can be fixed to the column 4 by only fitting a metallic fitting member 3 over the column 4 from above and tightening fastening bolts 7 sidewards, the fitting operation can be completed in an extremely short period of time.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for preventing frost damage to agricultural crops.
This invention relates to a blower with an oscillating device that blows warm air from a height of ~10 m to the ground surface or a collision surface.

Conventionally, this type of blower has had a configuration as shown in FIG. 101 is a fan, 102 is a fan motor, 103
The swing mechanism has the following configuration. 104 is a fan motor support shaft that supports the swinging mechanism 103 on the support arm 106, 1o6 is a bearing, 107 is a swinging motor with a rotating shaft protruding downward and fixed, and 10B is a swinging motor. A crank mechanism is provided at the tip of the rotating shaft 107, and the swinging operation of the crank mechanism drives the fan motor 102 to reciprocate at a predetermined angle around the fan motor support shaft 104.

Reference numeral 109 denotes a drip-proof cover 110 that covers the swinging mechanism section 103.
1 is a mounting base for fixing the fan motor 102 to the drip-proof cover 109, and the angle of depression of the fan is determined by an arcuate groove 111 and an adjustment bolt 112.

113 is a mounting column, 114 is a mounting bracket installed on the top of the mounting column 113, and 115 is a connecting bolt that connects the support arm 105.
is supported.

In the above-described configuration, the fan motor 102 and the oscillating mechanism section 103 are pivotally supported at the tip of the support arm 105 which is protruded and fixed in the lateral direction using the mounting bracket 114. In this state, the tip of the fan 101 touches the support arm 10 at both ends of the oscillating operation.
5 and close to the lower end of the support arm 105, there was a drawback that the swing angle could not be increased. In locations such as slopes and depressions, it is necessary to increase the angle of depression to blow air more downward, but in this case, the tip of the fan 101 comes even closer to the support arm 105, so the disadvantage is that the angle of depression cannot be increased. there were.

When installing the blower main body, first fix the mounting tool 114 to the top of the mounting column 113, and then attach the support arm 105.
Since this method connects the support arm 105 and the mounting bracket 114 with the connecting bolt 116 while holding the support arm 105 in a horizontal direction, there is a drawback that a lot of time is spent on the installation work on the pillar.

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. A shaft, a swinging mechanism section having a swinging reduction motor pivotally supported by the fan motor support shaft, and a drip-proof cover covering the swinging mechanism section extending laterally and protruding, and the above-mentioned swinging speed reduction motor attached to the tip thereof. By attaching a fan motor that is reciprocally driven at a predetermined angle by a motor so as to be able to move up and down, the above-mentioned drawbacks of the conventional technology can be overcome.An example of this will be described below based on FIGS. 2 and 3. explain. Figure 2 shows the entire structure of this embodiment, and 1 is a fan 2.
3 is a mounting bracket for mounting the blower on the upper part of the mounting column 4, and is a cylindrical bracket that is mechanically integrated with the oscillating mechanism part 6. Screw in the tightening bolt 7, and attach the tip of the tightening bolt 7 to the mounting column 4.
It is fixed by pressing it against the surface. Reference numeral 8 denotes a fan motor mounting base for properly mounting the fan motor 1 on the oscillating mechanism section 6, and the upper part of the mounting base is in a U-shape and is fixed to the outer cover of the motor 1. A pair of through holes 9 and an arcuate groove 1o are bored on both sides of the fan motor 1, and by passing a mounting bolt 11 through the through hole 9 and screwing it into the exterior of the oscillation mechanism section 6, the fan motor 1 is oscillated. It is pivotally supported by the mechanism section 6, and its depression angle can be adjusted from the circular arc groove 1o by an adjustment bolt 12 screwed into the exterior of the oscillating mechanism section 6. Therefore, the air blowing direction of the fan 2 is determined by the rotation angle of the oscillating mechanism 5 and the fixing position of the adjustment bolt 12 in the arcuate groove 1o for adjusting the depression angle. It's a power cord.

Next, based on FIG.
7. Reference numeral 15 denotes a fan motor support shaft having two 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 16 is fixed to the bearing part 17 by passing through the bearing part 17 and fitting the bearings 18 and 19, and fitting and inserting the rocking plate 21 through the washer 2o and fixing it with the nut 22. Support plate 23
It is pivoted. In this way, the mounting bracket 3 and the swinging mechanism section 6 are integrated with each other via the fan motor support shaft 15.

24 is a oscillation reduction motor mounted on the support plate 23 with its rotating shaft facing upward; 25 is a crank fixed to the rotation shaft of the oscillation reduction motor 24; 26 is a two-rank pin 27 of the crank 26 and a swing plate 21; This crank mechanism drives the oscillation mechanism 6 reciprocatingly in the left and right direction.

29.30 is divided into upper and lower parts with a drip-proof cover that covers the swinging mechanism. Reference numeral 29 designates an upper drip-proof cover, which has a large cutout around the periphery where the oscillation reduction motor 24 is arranged and is opened, and its lower end is deep enough to properly wave the outside of the mounting bracket 3 to prevent raindrops from entering the bearing 18. , has a box-shaped bush extending in the opposite direction of the notch opening, and is supported on the support plate 23 with mounting bolts 31. The fan motor mounting base 8
is fixed to the extended protruding tip of this drip-proof cover. Therefore, since the fan 2 does not hit other members due to its structure, it is possible to increase the rotation angle of the oscillating mechanism 5, which not only makes it possible to blow air in a larger semi-conical shape than ever before, but also increases the angle of depression. can be freely adjusted up to a large angle. 3o is a lower drip-proof cover that covers the notch opening of the upper drip-proof cover 29, and is inserted into the upper drip-proof cover 29 from below and has a U-shape dimensioned so that the circumference is inscribed in the upper drip-proof cover 29. The cover can be detachably attached and supported using the mounting bolts 32.

A cord bushing 33 is fitted into a through hole of the support plate 23 to protect 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 laterally, but it is also possible to attach a 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 composed of a fan motor support member that supports the fan at a required distance from the mounting column, and a swinging mechanism that causes the support member to swing at the top of the mounting column.

In the above configuration, when installing the blower, it can be fixed to the mounting post 4 by simply inserting the mounting bracket 3 from above the mounting post 4 and tightening the tightening bolt 7 from the side, and the installation work can be done in an extremely short time. Can be completed.

In addition, maintenance and inspection of the swinging mechanism section 5 can be performed by removing the lower drip-proof cover 30 from the upper drip-proof cover 29, and 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 traveling motion of the oscillating mechanism is located at the mounting column. 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. In addition, since the configuration ensures a sufficient vertical clearance distance between the fan motor support member and the fan, it is possible to increase the depression angle to a maximum of 90'. There is no need to manufacture a blower with a large air depression angle.

During installation, the blower can be installed by simply inserting it into the top of the mounting column. The cylindrical mounting bracket with tightening bolts has the following effects: 1. Not only does it greatly shorten the time required to work on the column, but it also reduces the number of parts, facilitates manufacturing, and simplifies assembly.

[Brief explanation of the drawing]

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. 3 is a partially cutaway illustration of the swing mechanism and mounting bracket of the blower. FIG. 1...Fan motor, 2...Fist...Fan,
3... Mounting bracket, 5... Oscillating mechanism section, 1
5...Fan motor support shaft, 24...
Swing reduction motor, 29 @@am@m upper drip-proof cover, 306 @@*@@ lower drip-proof cover. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 1θ2゜Figure 2

Claims (3)

[Claims] (1) A blower mounting bracket that is attached to the top of the mounting column, a vibration mechanism part that covers the crank mechanism that drives the fan motor at a predetermined angle with a drip-proof cover with a drip-proof cover, and a radial direction from the mounting column. A fan motor is provided at an end of the oscillating mechanism section with a distance larger than the radius of the fan of the fan motor so that it can be raised and lowered freely via a mounting base, and the mounting bracket and the oscillating mechanism section support the fan motor. A blower with an oscillating device that is integrated through a shaft. (2) The blower with an oscillating device according to 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. (3) Claim 1 in which the drip-proof cover is divided into an upper drip-proof cover that supports the fan motor, and a removable lower drip-proof cover that is inserted into the upper drip-proof cover from below.
A blower with an oscillating device as described in Section 1.