JPH0710791Y2 - Line drawing - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a line drawing for drawing a line of lime powder or the like on the ground or other ground surface.

[0002]

2. Description of the Related Art Conventionally, when a line is drawn using lime powder, there is a problem that the lime powder is easily condensed due to moisture or the like and adheres to the vicinity of the discharge port or other parts to cause clogging. . To solve this problem, for example,
In the line drawing disclosed in Japanese Patent Publication No. 7266, a drum 5 is provided with a brush plate 6, while a scraping line 9 is provided in the vicinity of the discharge port so that the lime that has reached the vicinity of the outlet 2 is separated by the brush plate 6 and the scraping line 9. A structure is provided for discharging while dispersing.

[0003]

However, in the above-mentioned conventional apparatus, once transported to the vicinity of the discharge port, the lime can be relatively surely dispersed and discharged from the discharge port. On the other hand, in the body 1 Even if the lump-shaped (dango-shaped) lime generated at the upper part of the drum 5 comes above the drum 5, it slips idle on the brush plates 6 arranged side by side with respect to the rotation of the drum 5 and the brush plate 6.
However, there is a drawback in that it does not fall downward from the gap between the drum 5 and the inner wall of the body 1 and remains. Further, although the brush plate 6 is formed in a twisted shape in the above-mentioned conventional apparatus, there are drawbacks that such a configuration is not easy to manufacture, and that it is difficult to integrally form the drum 5 and the like.

Therefore, the present invention solves the above-mentioned drawbacks of the prior art, and provides a line drawing capable of reliably dropping the lump lime generated in the lime accommodating portion from the top of the drum to the lower discharge port side by the rotation of the drum. With the goal.

[0005]

In order to achieve the above-mentioned object, the line drawing of the present invention comprises a container for containing powder,
At least a bottom part that communicates with the accommodating part and has a discharge port for the powder near the lower end, and a feed drum that is disposed in the bottom part and that rotates with the rotation of the wheels are provided. It is a line drawing for guiding a body from above the feed drum through the space between the feed drum and the inner wall of the bottom to a lower discharge port and discharging it to the outside to form a line, and a polygonal shape on the outer circumference of the feed drum. The fins are provided coaxially with the feed drum and at a constant interval, and the corners and sides of the fins are alternately staggered.

[0006]

According to the above feature, the polygonal fins are provided on the outer periphery of the drum so that the corners and the sides are alternately staggered. The storage space is formed by the corners of the fins (before and after the direction), and the powder is agglomerated in the storage space (agglomerated powder).
However, both sides thereof are held by the corners of the fins, and the lower surface of the agglomerate powder is held on the fins by being supported by the side portions of the fins. Then, the agglomerated powder held in the storage space is surely conveyed laterally as the feed drum rotates, and reaches the position where it comes into contact with the inner wall of the bottom. When the fins are circular, there is no biting force, so the powdery powder slips in place, but in the present invention, since the side and corner portions of the polygonal fins have different clearances to the bottom inner wall, The agglomerated powder carried to the position where it comes into contact with the inner wall is caught by the corners of the subsequently rotating lower supporting fins, collapsed, and dropped downward between the bottom inner wall and the drum.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an exploded perspective view of the main part of the line drawing according to the embodiment of the present invention, FIG. 2 is a partially cutaway perspective view of the main part of the line drawing of FIG. Cross-sectional view, Figure 4
Is a vertical cross-sectional view of the main part of the line drawing, FIG. 5 is a plan view of the main part of the line drawing, and FIG. 6 is a plan view of the bottom part.

As shown in FIG. 1, the line drawing has a storage portion 10 for storing lime, a bottom portion 20 which is detachably attached to and communicates with the storage portion, and a wheel portion 30 which is detachably fitted to the bottom portion 20. . A latch 11 for the bottom portion 20 is provided near the lower end of the side surface of the housing portion 10. A wheel 32 and a feed drum 33 are fixed to a shaft 31 of the wheel portion 30, while a bearing 34 is freely fitted to the shaft 31. The bottom portion 20 is an integrally molded body made of plastic. The shaft 31 is made of steel, the wheels are made of rubber, and the feed drum 33 and the bearing 34 are made of plastic.

The bottom portion 20 is formed in a case shape, and is fitted into the housing portion 10 at the upper half portion 21 of the side wall, and is formed as an arcuate wall 22 from the lower half portion to the lower end portion of the side wall in the longitudinal direction. There is. A pair of outlets 23, 23 are provided on both sides of the lowermost end. Inside the lowermost end, a comb-shaped body 24 is formed by arranging a plurality of upward teeth 24a in parallel in the longitudinal direction at regular intervals. On the other hand, on both side walls in the longitudinal direction of the bottom portion 20, fitting grooves 25 into which the bearing members 34 of the wheel portion 30 are fitted are provided.

The feed drum 33 fixed to the shaft 31 of the wheel portion 30 is provided with a plurality of polygonal fins 35 on the outer circumference in the longitudinal direction thereof, coaxially with the feed drum 33, at regular intervals. In this embodiment, the fins 35 and the feed drum 33 are integrally formed, and two half bodies of the drum 33 and the fins 35 are integrally formed. Each polygonal fin 35 is, for example, a hexagon, and its corners 35a and sides 35b are provided alternately (in the longitudinal direction of the feed drum 33) so as to be staggered. By providing the fins 35 in this manner, the corners 35a of the adjacent fins 35 are located on both sides (front and rear in the longitudinal direction) of the side part 35b of one fin 35, and the side parts 35b. And the corners 35a on both sides
, 35a defines a storage space S surrounded by the space 35a.

Now, when the wheel portion 30 is fitted into the bottom portion 20 and the bottom portion 20 is attached to the housing portion 10, the feed drum 33 with the polygonal fins 35 is arranged in the inner space of the case-shaped bottom portion 20. It takes shape and rotates together with the rotation of the wheels 32. Then, the lime powder in the containing portion 10 gradually drops, and when it is placed on the feed drum 33, it is carried together by the rotation of the feed drum 33, drops downward through the gap between the inner wall of the bottom portion 20, and is discharged. It is discharged from the outlet 23,
Become a line. Each polygonal fin 35 of the feed drum 33
Engages with the teeth 24a of the comb-like body 24 at the lowermost end, and the lime powder remaining or adhering between the fins 35 is removed.

On the other hand, when the powder (agglomerated powder) agglomerated in the accommodating portion 10 descends, it does not enter between the fins 35 because it has a large size, and the side portions 35b of the fins 35 and the side portions 35b thereof. It is held in the accommodation space S formed by the corner portions 35a, 35a on both sides. That is, the massive powder B shown by the two-dot chain line in the drawing is stabilized in the accommodation space S by having its lower surface supported by the side portions 35b of the fins 35 and both sides being held by the corner portions 35a. The agglomerated powder B in the storage space S is moved laterally as the feed drum 33 rotates, and comes into contact with the side inner wall 26 of the bottom portion 20. If the diameter of the lump powder B is larger than the size of the gap between the fin 35 and the side inner wall 26, it will not fall downward through the gap as it is. However, in the present invention, since the corners 35a of the fins 35 and the sides 35b have different radii, the size of the clearance between the side inner wall 26 of the bottom 20 is smaller in the corners 35a than in the sides 35b. Therefore, the corner portion 35 of the fin 35 that supports the lower surface of the bulk powder B with respect to the bulk powder B that has been sent to the side and is in contact with the side inner wall 26.
The a continues to rotate on the side portion 35b, bites into the agglomerate powder, and crushes the agglomerate powder B while pressing it against the side inner wall 26. As a result, the lumpy powder B collapses, falls down, and is guided to the discharge port 23. If the fin 35 is circular,
Since the fin radius is the same on the entire circumference, the biting force by the fin does not work, and the lumpy powder B slips on the fin (idle rotation) and does not fall as it is, and it remains uncrushed.

The wheel portion 30 has a bearing member 34 at the bottom.
It can be installed with one touch simply by fitting it into the fitting groove 25 of 20. Moreover, instead of directly fitting the shaft 31 into the groove of the bottom portion 20 for bearing, the bearing body 34 is attached so that the shaft 31 is covered with the bearing body 34, and the bearing body is attached.
Since 34 is fitted in the fitting groove 25,
It is possible to sufficiently effectively prevent the powder in 10 from entering between the shaft 31 and the bearing as compared with the conventional case.

[0014]

According to the line drawing of the present invention, polygonal fins are provided on the outer circumference of the feed drum coaxially with the feed drum and at regular intervals. Since the corner portions and the side portions of the fin are provided so as to be alternately staggered, even if the agglomerate powder is present in the accommodating portion, the agglomerate powder is separated by the side portions and the corner portions on both sides of the fin. It can be held and conveyed to the side, and can be guided to the lower side while being crushed by crushing the lumpy powder by being caught in the lumpy powder at the corners. Therefore, it is possible to prevent the agglomerated powder from remaining in the line drawing and causing clogging, and smooth discharge of the powder and deterioration of the line shape.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a main part of line drawing according to an embodiment.

FIG. 2 is a partially cutaway perspective view of a main part of line drawing according to the embodiment.

FIG. 3 is a cross-sectional view of the main part of line drawing.

FIG. 4 is a vertical sectional view of a main part of line drawing.

FIG. 5 is a plan view of a main part of line drawing.

FIG. 6 is a plan view of the bottom of line drawing.

[Explanation of symbols]

 10 Storage part 20 Bottom part 23 Discharge port 30 Wheel part 33 Feed drum 35 Polygonal fin 35a Corner part 35b Side part

Claims (1)

[Scope of utility model registration request] 1. An accommodating portion for accommodating powder, a bottom portion communicating with the accommodating portion and having a discharge port for the powder formed near a lower end thereof, and arranged inside the bottom portion and rotated with rotation of a wheel. At least the feed drum is provided, and the powder in the accommodating portion is guided by the rotation of the feed drum through the space between the feed drum and the inner wall of the bottom to a lower discharge port, and is discharged to the outside to form a line. In the line drawing, polygonal fins are provided on the outer periphery of the feed drum coaxially with the feed drum and at regular intervals such that corners and sides of the fins are alternately staggered. Characteristic line drawing.