JP3521084B2 - Line pull - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of drawing a white line for playing various sports on the ground.

[0002]

Prior Art Before playing various competitions on the ground,
You need to draw a line for the competition. This is almost a straight line, but sometimes a circle is drawn. The line drawing of the two wheels that has been used conventionally is one in which a person pushes forward and draws a white line, but since it is a two wheel, it causes hand shake to the left and right when drawing a line, and the straight line bends slightly. Is normal. In addition, although line drawing of four wheels is also used, it is not suitable for drawing a circle because it is difficult to use a small turn because it is a straight line only and the main body is large.

[0003]

[Problems to be Solved by the Invention] When drawing a long white line on the ground for preparation before competition, after measuring with a tape measure 7, draw a white line parallel to the side of the tape measure 7, but the line drawing is 2 Since it is a wheel, it is difficult to shake a hand and draw a straight line neatly, and the powder is often deposited on the tape measure 7 to stain the tape measure 7. Circles are also difficult to draw neatly.

According to the present invention, when a white line is drawn on the ground for preparation before competition, it is possible to easily draw a clean straight line or a clean circle without shaking the hand and without polluting the tape measure 7. The task was to make it possible.

In the conventional two-wheel line drawing, the stopper 12 is installed in front and is inclined and stands, so that it is easy to fall down. Further, in the state where the powder is contained, the wheel 3 is hard to idle due to the resistance of the powder, and therefore must be lifted and carried. The problem is to solve these problems.

[0006]

Therefore, in the line drawing according to claim 1 of the present invention (hereinafter referred to as the present invention 1), the center of a frame 2 in which two small wheels 1 are rotatably supported. The bearing 5 is provided in the part, and one of the shafts 6 penetrating the line drawing main body
The wheel 3 is pivotally supported on the end side and the other end side of the shaft 6
The frame 2 is rotatably supported by the
Is arranged so as to be parallel to the wheel 3 .

With such a construction, the line drawing can be advanced straightly by the stable straightness of the three wheels of the line drawing wheel 3 and the two small wheels 1 arranged in parallel.

In the line drawing according to claim 2 of the present invention (hereinafter referred to as the present invention 2), the guide 4 for passing the tape measure 7 is hung vertically on the front horizontal bar 8 and the rear horizontal bar 9 attached to the frame 2. It has a feature.

With such a construction, a straight line can be drawn by passing the tape measure 7 through the two front and rear guides 4 mounted in parallel with the two small wheels 1, 1.

The line drawing according to claim 3 of the present invention (hereinafter referred to as the present invention 3) is arranged in parallel with both wheels 3 and 3 of the line drawing, and one small wheel 1 and one rear wheel are arranged rearward. Axle 1
It is characterized in that it is rotatably provided on the outer side of the front end portions of both frames 2 and 2 by one, and the other front end portions of both frames 2 and 2 are rotatably supported by the side surface of the line drawing main body.

With this construction, the straight line is drawn straight by the stable straightness of the four wheels, that is, the two small wheels 1 and 1 which are parallel to the two wheels 3 and 3 and are separated from each other in the rearward direction. Is something that can be done.

[0012]

According to the first and second embodiments of the present invention, a line is placed on the long tape measure 7, the tape measure 7 is hooked on one guide 4 of the front horizontal bar 8 and then the guide 4 on the same side of the rear horizontal bar 9. After pulling the tape measure, the tape measure 7 is pulled and fixed, and a straight line can be drawn by pushing the line drawing of the three wheels in the direction in which the tape measure extends straight.

According to a third aspect of the present invention, the frame 2 is attached to the line drawing body.
The two small wheels 1 and 1 attached to the other end of the frame 2 rotatably attached to one end of the frame 2 make a very stable line drawing of four wheels, and the white line can be drawn straight and neatly. Further, the wheel 3 can be placed on the rear axle 11 and used for carrying the line drawing body.

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will now be described in detail with reference to the drawings based on an example of the embodiment.

FIG. 1 shows a perspective view of line drawing according to the present invention 1. Two bearings 5 formed in a central portion of the frame 2 rotatably by journaling the small wheel 1, transmural line pull body
While supporting the wheel 3 on one end side of the shaft 6 through which
The frame 2 is rotatably supported by the other end of the shaft 6.
The small wheel 1 is arranged so as to be parallel to the wheel 3 .

The shaft 6 of the line drawing wheel 3 is an important shaft 6 serving as a power source for uniformly discharging the powder in the line drawing box, and a bearing mounted on the frame 2 on the shaft 6. The small wheels 1 supported in a line by the frame 2 can stably and straightly advance by supporting 5 in a line.
The frame 2 is fixed to the shaft 6 by a set collar 10. And since the line drawing is supported by three wheels, when a person holds a handle and moves forward, he or she can concentrate on drawing a white line without feeling the subtle swing as with two wheels. .

As an example of the embodiment, if the length of the frame is increased, the straight-ahead performance is improved, but on the contrary, the circle becomes difficult to draw and it is necessary to change the circle according to the purpose. The length of the frame 2 is about 30 cm so that it can be turned around easily, and the frame 2 can be made of steel plate or resin, and the cost can be reduced. The small wheel 1 has a diameter of about 7 cm, and is made of EVA foam, Hi-Zex tire, or the like, which has a stable performance by absorbing vibration when moved.

FIG. 2 shows a perspective view of line drawing according to the present invention 2. This line drawing is configured by vertically installing a guide 4 through which a tape measure 7 is passed on a front horizontal bar 8 and a rear horizontal bar 9 attached to the frame 2.

A tape measure 7 pulled for measurement by two front and rear guides 4 mounted in parallel with the two small wheels 1, 1.
A person pulls the both ends through the tape measure, and the tape measure 7 straightly extended limits the straight line. Line drawing with three wheels and stable straight-line performance allows you to continue to draw a stable and beautiful white line with simple control by a person. When the tape measure 7 is passed through the guide 4, it can be easily passed by hooking the tape measure 7 extending above the ground on the tip of a finger and placing it on the front and rear guides 4. The guide 4 can be attached to one side and used.

As an example, it is desirable that the guide 4 has a width such that the tape measure 7 having a width of about 15 mm does not come off even if it passes quickly, and the position of the guide 4 is made as low as possible so as not to rub against the ground. Further, the guide 4 has a depth such that the tape measure 7 can be easily removed with a finger after drawing the line. Further, when a white line is drawn on the right side of the tape measure 7, the front and rear guides 4 on the left side can be used, and the same can be used on the opposite side.

When a straighter straight line is drawn, stable taperability can be doubled by using two tape measures 7 as shown in FIG. 3, and a clean straight white line can be drawn. Further, by passing it through the guide 4, it is possible to prevent the powder sprinkled from the powder outlet of the line drawing from climbing on the tape measure and to draw it while maintaining the uniform thickness of the white line.

When drawing a circle, a hooking bar is attached on the front horizontal bar 8 and the loop at the tip of the tape measure 7 is hooked. The other side is fixed to the center of the circle and the tape measure 7 is pulled and the front horizontal bar 8
By advancing while controlling so that the direction in which the tape is directed and the direction of the tape measure 7 are in a straight line, a circle corresponding to the radius can be drawn neatly without shaking. Depending on the position where the hook bar is attached, it is possible to decide from the left, center, or right position of the white line to measure and draw the circle.

Up to now, the method of using the tape measure 7 has been described as a reference, but the method of using the hook for the circle may be any one having a width such as a string or a belt that can be used.

FIG. 4 shows an example of the third embodiment of the present invention.
Shows a perspective view of line drawing. In parallel with the line drawing wheels 3 and 3, one small wheel 1 at the rear,
1 is rotatably provided on the outer sides of the front ends of both frames 2 and 2 by a rear axle 11, and the other front ends of both frames 2 and 2 are rotatably supported by the side face of the line drawing body. It is configured.

One end of each of the frames 2 and 2 is pivotally supported by a rotary shaft 13 on the side surface of the line drawing main body, and the rear axle 11 is provided outside the other end of each of the frames 2 and 2 by the small axles 1 and 1. Is rotatably attached, so the width of both small wheels 1, 1 is wider than the width of both wheels 3, 3, and the positions of the four wheels are wide toward the rear, forming a very stable shape, and shaking You can draw a beautiful straight line straight.

FIG. 5 shows a state where the stopper 12 draws a line. In the state where the line drawing main body is tilted forward by the stopper 12, the small wheels 1 and 1 come close to the wheels 3 and 3 and come to the outside. When attempting to draw a white line, the line drawing handle 14 is drawn in the direction of arrow A shown in the figure. At the same time, the small wheel 1 attached to the tip of the frame 2 also starts moving in the direction of arrow B and moves away from the wheel 3. Therefore, the small wheel 1 will stop in the state of FIG. 4,
There you can start drawing white lines. The position of the small wheel 1 is such that it does not interfere with the walking foot when the white line is drawn.

FIG. 6 shows a state in which the line drawing main body is being carried. From the state of FIG. 5, by pulling the steering wheel 14 for pulling the line in the direction of arrow A with the grounding point 15 of both small wheels 1, 1 as a fulcrum, both wheels 3, 3 are put on the rear axle 11, and therefore the line pulling is performed. The main body is on. This state is shown in FIG. Then, it can be easily carried in the direction of arrow C by holding the line pulling handle 14. These series of movements can be performed very smoothly and the work of drawing a line can be simplified.

As an example of the third embodiment of the present invention, this line drawing can be easily attached to a line drawing of two wheels which is generally sold. The specification of the line drawing body is that the diameter of the wheel 3 is 15 cm, the width of the wheel 3 is 3 cm,
The mounting width of both wheels 3, 3 is 22 cm, the diameter of the small wheel 1 is 7 cm, the width of the small wheel 1 is 2.5 cm, the mounting width of both small wheels 1, 1 is 29 cm, the length of the frame 2 is 39 cm, the frame When 2 extends backward, the distance between the wheel 3 and the small wheel 1 is 35 cm. The small wheel 1 is preferably made of rubber or synthetic resin having a property of absorbing vibration. The material of the frame is iron, aluminum or synthetic resin and can be manufactured at low cost.

[0028]

According to the first aspect of the present invention, since it is possible to draw a white line without concentrating on preventing camera shake, there is no failure,
The preparations for the competition are completed neatly, so the feelings of the athletes involved in the competition are tightened. Also, the work time for drawing a wide range of ground lines can be shortened.

According to the second aspect of the present invention, the line drawing body can be guided so that a straight line can be drawn without polluting the tape measure with powder.

According to the third aspect of the present invention, the mounting width of both small wheels 1, 1 located behind the line drawing body is such that both wheels 3, 3 are mounted.
It is provided wider than the width of both small wheels 1, 1 and both wheels 3,
Since they are 3 apart, they are standing in a very stable state. And you can quickly draw out the white line. Therefore, anyone can easily draw a straight straight line quickly. Further, as shown in FIG. 6, by placing both wheels 3 and 3 on the rear axle 11, it is possible to easily move the heavy line drawing main body to the other place by supplementing the powder.

[Brief description of drawings]

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

FIG. 2 is a perspective view showing an example of a second embodiment of the present invention.

FIG. 3 is an explanatory diagram of use of two sets of guides for use with a tape measure of the present invention 2.

FIG. 4 is a perspective view showing an example of a third embodiment of the present invention.

FIG. 5 is an explanatory diagram of use of the present invention 3.

FIG. 6 is an explanatory diagram of use of the present invention 3.

[Explanation of symbols]

1 small wheel 2 frames Three wheels 4 guides 5 bearings 6 axes 7 tape measure 8 front horizontal bar 9 Rear horizontal bar 10 set color 11 rear axle 12 stopper 13 rotation axis 14 handle 15 ground points

Claims (3)

(57) [Claims] 1. A shaft for rotatably mounting two small wheels (1).
A bearing (5) is provided at the center of the supported frame (2), and a wheel is provided at one end of a shaft (6) that penetrates the line drawing body.
(3) is pivotally supported, and at the other end side of the shaft (6)
The frame (2) is rotatably supported by the small wheel
A line drawing, wherein (1) is arranged so as to be parallel to the wheel (3) . 2. A front horizontal bar (8) attached to a frame (2).
The line drawing according to claim 1, characterized in that a guide (4) through which a tape measure is passed is provided vertically on the rear horizontal bar (9). 3. Small wheels (1, 1), one in the rear, are arranged in parallel with both the line drawing wheels (3, 3) and are arranged in the rear axle (1).
1) rotatably provided on the outside of the tips of both frames (2, 2), and the other tips of both frames (2, 2) are rotatably supported by the side surface of the line drawing body. Line drawing featuring.