JP3022296U - Lawn head blower - Google Patents

Abstract

(57) An object of the present invention is to provide a swing prevention device capable of efficiently preventing frost damage and pest damage on lawns on a golf course and the like, and also facilitating movement of the device. A support base 4 having a blower fan 6 is provided above a carriage 3 having casters 2 and the carriage 3 and the support base 4 are formed by a pipe frame.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a head blowing device for preventing damage to frost on a lawn at a golf course, a park, etc. in winter and for preventing pests and red wilt disease caused by high temperature and high humidity in summer.

[0002]

[Prior art]

 In the past, golf courses were covered with a large frost-prevention sheet to prevent frost from falling due to a decrease in outside temperature at night in winter, and chemicals were sprayed or manually removed from pests in summer.

[0003]

[Problems to be solved by the device]

 According to this conventional method, it takes a lot of labor to attach and detach a large number of large sheets on the lawn, and the spraying of chemicals pollutes the environment, and the manual removal work is laborious. There was a problem.

An object of the present invention is to solve the above problems and to provide a head blowing device capable of automatically and efficiently preventing frost damage and pests of lawns by simple work.

[0005]

[Means for Solving the Problems]

 In order to achieve this object, the present invention is characterized in that a support base made of a pipe frame supporting a blower fan is rotatably provided above a carriage made of a pipe frame having a caster on the lower surface by a spindle. And

[0006]

[Embodiment of device]

 An embodiment of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a swing blast device, and the swing blast device 1 rotatably supports a support base 4 by a main shaft 5 on an upper surface of a carriage 3 having two casters 2 on the lower surface. Then, a wind tunnel 7 in which a blower fan 6 is pivotally supported is fixed to the inside of the support base 4, and a control panel 8 is fixed to the support base 4 on the side of the wind tunnel 7.

A swing drive device 9 including a speed reducer and a motor is fixed on the carriage 3 for swinging the blower fan 6, and a link mechanism 10 is connected to the support base 4. Here, in order to reduce the weight of the head blower 1, the carriage 3 and the support base 4 are formed by a pipe frame.

A control device 11 is provided in the control panel 8, and a control system by the control device 11 is shown in FIG. 2. In FIG. 2, reference numeral 12 denotes a temperature sensor, The temperature sensor 12 is connected to the first input side of the comparison circuit 14 via the signal conversion circuit 13 composed of an AD converter, and the temperature setting device 15 is connected to the second input side of the comparison circuit 14, The first drive circuit 16a is connected to the first motor 17a for blowing fan on the output side of the comparison circuit 14 and the second drive circuit 16b is connected to the second motor 17b to reduce the speed of the second motor 17b. Via a link mechanism 10 to the support base 4 having the blower fan 6.

Next, the spindle 5 will be described with reference to FIG.

The main shaft 5 is axially mounted by two sets of bearings, a bearing 5a and a bearing 5b.

The lower bearing 5 a is fixed to the lower surface side of the carriage 3, and the upper bearing 5 b is fixed to the upper surface of the support 4.

Since the main shaft is rotatably attached by the two sets of bearings, some play in the left-right and front-rear directions occurs, and the swinging motion of the blower fan can be smoothly performed.

Further, the link mechanism and the swing drive device will be described with reference to FIG.

The swing drive device 9 comprises a second motor 17b and a worm gear reducer 9b connected to the second motor 17b via a coupling 9a. The swing drive device 9 is fixed to the carriage 3.

The link mechanism 10 is composed of a crank 10a, a rocker arm 10b, and a connecting rod 10c that connects them, and the fulcrum of the crank 10a is fitted to the output shaft of the speed reducer 9b. A rocker arm 10b, which is an output arm of the link mechanism 10, is fitted on the axis of the main shaft 5 of the support base 4.

A plurality of holes 10d are formed in the crank 10a, and a fitting pin is protruded from the tip of the connecting rod 10c. The fitting pin is placed in any one of the holes 10d. By inserting and engaging, the arm length of the crank 10a can be changed to change the rocking angle of the rocker arm 10b.

By changing the arm length of the crank 10a, the swing angle of the blower fan can be changed to about 30 ° to 170 ° to correspond to the size of the lawn.

In order to prevent the blower device 1 from moving even when the blower swings and vibrates at the installation location, cylindrical bodies 3a and 3b for inserting stopper rods are welded to the carriage 3 as shown in FIG.

The tubular body 3a is vertically welded to the rear portion of the carriage 3 on which the handle 3c is provided.

The stopper rod 20 has a plurality of stopper holes 20a. The stopper rod 20 is inserted into the cylindrical body 3a and pushed into the ground, and the stopper rod 21 is combined with the stopper hole 20a and the holes formed in the cylindrical body 3a. Insert and fix.

Further, the cylindrical body 3b is welded to the front portion of the cart 3 on which the casters 2 are provided while being inclined inward. The stopper rod 22 is inserted into the cylindrical body 3b and pushed into the ground.

Due to the angle between the stopper rod 20 and the inclined stopper rod 22 in the vertical direction, the stopper rod 20 is set on the ground without being loosened by the vibration of the blower fan.

Next, the operation of the swing air blower 1 according to this embodiment will be described.

For example, in winter, at the evening after playing at a golf course, the swing fan device 1 is moved onto the grass of each course and set by the stopper bars 20 and 22.

Next, the swing length is set by adjusting the crank length of the crank 10a of the link mechanism 10 according to the width of each lawn.

When the outside air temperature at night becomes low and the temperature detected by the temperature sensor 12 becomes equal to or lower than the temperature set to, for example, 5 ° C., an output from the comparison circuit 14 is generated, and the output for the blower fan is generated via the drive circuits 16 a and 16 b. The first motor 17a and the second motor 17b for swinging are rotationally driven, and the blower fan 6 rotates while swinging the head at the adjusted swing angle for the lawn to send wind to the lawn and prevent frost damage. .

Then, in the morning of the next day, when the outside air temperature rises and the set temperature becomes 5 ° C. or higher, the output from the comparison circuit 14 becomes zero and the rotations of the first and second motors 17a and 17b automatically stop. To stop blowing air on the lawn.

In the summer, for example, when the set temperature is set to 30 ° C., when the temperature exceeds 30 ° C., air blowing is automatically started to fly off harmful insects and prevent red wilt disease and the like.

[0030]

[Effect of device]

 Thus, according to the present invention, it is possible to prevent frost damage and pests on the lawn, it becomes unnecessary to attach and detach the sheet covering the lawn and to remove the pests, and the work becomes extremely easy. Since the base is formed by the pipe frame, the weight of the entire device is reduced, and the device can be easily moved on a golf course with a large lawn.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a block diagram of the control system.

FIG. 3 is a perspective view of a main shaft of a main part thereof.

FIG. 4 is a perspective view of a link mechanism and an oscillating drive device, which are main parts thereof.

FIG. 5 is a front view showing a method for setting the device.

[Explanation of symbols]

 1 head swing air blower 2 caster 3 bogie 4 support stand 5 main shaft 6 blower fan 8 control panel 9 swing drive device 10 link mechanism

[Procedure amendment]

[Submission date] October 5, 1995

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 5

[Correction method] Change

[Correction content]

[Figure 5]

Claims (5)

[Scope of utility model registration request] 1. A lawn neck characterized in that a support base composed of a pipe frame for supporting a blower fan is rotatably supported by a main shaft above a carriage composed of a pipe frame having a caster on a lower surface thereof. Shaking device. 2. A swing drive device that swings the blower fan together with the support via a link mechanism, a temperature sensor that detects an outside air temperature, and the blower fan when the temperature sensor reaches a set temperature. And a control device for operating the rocking drive device. 3. The ball bearings are fitted on the upper and lower sides of the main shaft, the lower ball bearings are fixed to the carriage, and the upper ball bearings are fixed to the support base. Lawn head blower. 4. The link mechanism comprises a rocker arm fixed to a shaft core of the support base at a root portion, a connecting rod pivotally attached to a tip end portion of the rocker arm at a root portion, and a protrusion from a tip end portion of the connecting rod. And a rotating crank having a plurality of holes into which the insertion pin is inserted, and the swing angle of the blower fan can be changed by selecting the hole into which the insertion pin is inserted. The head swing fan of lawn according to claim 2. 5. The lawn head shaking blower according to claim 1, wherein the bogie is provided with a cylindrical body through which a stopper bar is inserted.