JPH0771694A - High pressure gas cylinder - Google Patents

Abstract

PURPOSE:To prevent a slip from being generated in a hand of a worker attached to the peripheral surface of a high pressure gas cylinder at the time of rolling conveyance by the worker. CONSTITUTION:In the peripheral surface in at least an upper part side of a high pressure gas cylinder 11 formed of constitution of fixing top/bottom end plates 13, 14 to upper/lower end opening of a barrel plate 12, an antislip part 19 of roughing the surface is provided. In this antislip part, its surface roughness Rz is set to 30 to 200mum.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high pressure gas container filled with LP gas, acetylene gas or the like, and more specifically, it is safe and stable when a worker pushes and rotates this high pressure gas container with a hand. It is intended to improve workability.

[0002]

2. Description of the Related Art A high-pressure gas container 1 filled with LP gas, acetylene gas, etc. shown in FIGS. 9 (A) and 9 (B) has conventionally been statutory as well as rustproof after molding the container according to the type of gas. The color of
(For example, in the case of LP gas, it is gray) The entire surface is painted. In addition, in the above high-pressure gas container 1, FIG.
The legal display 3 is drawn on the front side shown in FIG.
On the back side shown in (B), a legal display 4 indicating the owner or the like is drawn.

[0003]

Conventionally, the coating material applied to the high-pressure gas container 1 is aluminoalkyd or the like, and the coated surface is smooth. For example, in the case of aluminoalkyd, the surface roughness (ten-point average roughness) Rz measured according to JISB-0601 is 5 μm or less.

The ten-point average roughness Rz is an index showing the surface roughness of the substrate. As shown in FIG. 10, in the portion where the reference length L is extracted from the cross-section curve, the highest to fifth peaks R1 parallel to the average line 1 and measured in the longitudinal magnification direction from a straight line that does not cross the cross-section curve. ~ The average value of the elevations of R5 and the value of the difference between the average values of the elevations of the valley bottoms R6 to R10 from the deepest to the fifth are expressed in micrometers (μm), which is the ten-point average roughness Rz. Represented by the formula

Rz = {(R1 + R2 + R3 + R4 + R5)-(R6 + R7 + R8 + R9 + R10)} / 5

The high-pressure gas container 1 has the following inconveniences when it is moved or transported. That is, the high pressure gas container 1
11, when the operator holds the valve cap 6 with one hand 5A, tilts the high pressure gas container 1 with respect to the ground 7, and moves the bottom edge 8 of the skirt 8 as shown in FIG.
It is assumed that a contacts the ground 7. And the other hand 5B
Then, the upper portion 9a of the body plate 9 or the shoulder portion 10a of the celestial mirror 10 is pushed to rotate the entire high pressure gas container 1 as indicated by an arrow in the figure, and the high pressure gas container 1 is moved by rolling.

However, when the high-pressure gas container 1 is coated with a slippery paint as described above, the body plate 9 and the mirror 10 are covered.
The hand 5B of the operator who presses the shoulder portion 10a of the operator is slippery. When the hand 5B slides, the applied rotational force is the high pressure gas container 1
However, there was a problem in workability because it took more labor and time than necessary to move.

Further, when the hand 5B slips as described above, the operator loses his posture, and the vent hole 6 provided in the valve cap 6
There is a possibility that the finger of the hand 5A may get into a and the finger may be injured, or the high-pressure gas container 1 may fall sideways. When the high-pressure gas container 1 is transported on an inclined surface, it tends to be laid down sideways, which poses a problem in terms of work safety.

In particular, when the high-pressure container 1 is an LPG container, it is about 40 kg when it is not filled with gas, whereas it is 90 kg when it is filled with gas almost completely.
However, the heavier the total weight of the high-pressure gas container 1, the more difficult it is to rotate, and the more the operator's hand becomes slippery. Furthermore, when the surface of the high-pressure gas container 1 is wet with rainwater or the like, the operator's hand becomes more slippery, and the above problem becomes remarkable.

The present invention has been made in order to solve the above problems in the conventional high-pressure gas container, and an operator rolls and moves the high-pressure gas container with the lower end as a fulcrum in a tilted state. The purpose is to improve safety and workability in the case.

[0011]

To achieve the above object, a first aspect of the present invention is a high-pressure gas container having a structure in which a top mirror and a bottom mirror are fixed to upper and lower openings of a body plate. The present invention provides a high-pressure gas container characterized by having a stop.

The non-slip portion is provided on the entire outer peripheral surface from the upper end of the body plate to the center of the body plate, for example. Alternatively, it is provided at two places on the outer peripheral surface at least where the hand is touched. Alternatively, the entire top mirror and the upper 1 /
3 may be provided with a non-slip part. Further, a non-slip portion may be provided on the entire outer surface of the high pressure gas container. Further, a non-slip portion may be provided with a width of about 10 cm on the shoulder or the upper part of the body of the celestial mirror.

The non-slip portion may be laminated at least on the upper side of the smooth coating portion applied to the entire outer surface of the high pressure gas container. In this case, it is preferable that the legally marked surface is covered with the non-slip portion. Further, the anti-slip coating part may be directly provided on the surfaces of the body plate and the steel plate of the celestial mirror of the required part, and the smooth coating part may be directly provided on the remaining part, and these may be formed separately on the outer surface of the high pressure gas container.

According to a second aspect of the present invention, there is provided a high pressure gas container, wherein the non-slip portion is formed by applying anti-slip paint. As the above-mentioned non-slip paint, it is preferable to use a urethane resin paint in which fine powder particles having a particle diameter such that the surface roughness Rz of the non-slip portion applied with the paint is in the range of 30 to 200 μm are used.

Further, claim 3 is the same as claim 1
The high-pressure gas container is characterized in that the non-slip portion is formed by adhering an anti-slip sheet. The non-slip sheet is formed by embossing or printing on one surface of a sheet material made of hard vinyl chloride, polyethylene, polypropylene, penton, polycarbonate, Teflon, heat resistant vinyl chloride, methylmethacrylate, polyvinylidene chloride or polyisobutylene. ,
A rough surface with minute irregularities is formed so that the surface roughness Rz is in the range of 30 to 200 μm. On the other surface, for example, a nitrile rubber or neoprene rubber-based elastomer adhesive is applied.

As described above, the surface roughness Rz is 30 regardless of whether the anti-slip paint or the anti-slip sheet is used.
It is preferably in the range of up to 200 μm. The surface roughness Rz of the smooth coating material applied to the surface of the conventional high-pressure gas container is 5 μm or less.

[0017]

In the high-pressure gas container according to claim 1 of the present invention, since the non-slip part having a roughened surface is provided, when the worker rolls the high-pressure gas container and conveys it, a hand is put on the non-slip part, You can prevent slipping of your hands. Therefore, the rotational force by the hand can be reliably transmitted to the high-pressure gas container to smoothly roll and convey, and the safety can be improved by eliminating the danger caused by the slip of the hand.

In the second aspect, since the non-slip coating is applied to form the non-slip portion, it is possible to surely form the non-slip portion at the place where the operator applies his / her hand to prevent the hand from slipping. When the urethane resin paint mixed with fine-grained powder is used as the anti-slip paint, it is possible to form fine irregularities having a surface roughness Rz of 30 to 200 μm on the surface thereof in a state of being applied to a high pressure gas container. .

In the third aspect of the present invention, the high-pressure gas container has the non-slip sheet attached to form the non-slip portion. Therefore, the sheet can be easily formed by simply attaching the sheet to prevent slipping of the hand. be able to. In particular, when the surface of the anti-slip tape is roughly formed by embossing or printing, it can be easily formed to have a required surface roughness.

In the fourth aspect, the surface roughness Rz is 30 to 30.
200 μm, surface roughness of conventional high pressure gas container 5 μm
Compared with, since the surface is roughened, it is possible to surely prevent slipping.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the embodiments shown in the drawings. The first aspect of the present invention shown in FIGS. 1 (A) and 1 (B)
A high-pressure gas container 11 according to the embodiment includes a body plate 12 made of a cylindrical steel plate, a top mirror 13, a ground mirror 14, and a skirt 16 also made of steel plates, and the top mirror 1 is provided at an open end of an upper surface of the body plate 12.
3. A well-known structure in which a ground mirror 14 is welded to the open end of the lower surface and a skirt 16 is welded to the ground mirror 14. In addition, the celestial mirror 1
A valve cap 15 protruding from the upper end of 3 is attached. The valve cap 15 is provided with a vent hole 15a. The high-pressure gas container 11 has a height H of about 1
It has a diameter of 300 mm and a diameter D of about 360 mm to 370 mm.

The high pressure gas container 11 of the first embodiment is entirely
That is, the entire outer peripheral surface of the body plate 12, the heaven mirror 13, and the ground mirror 14.
A smooth coating portion 18 coated with alumino-alkyd paint is provided on the entire outer surface of the. The color of the alumino-alkyd paint is legally determined according to the type of gas filled in the high-pressure gas container 11, and is gray in the case of LP gas, for example. Further, since the smooth coating portion 18 uses the alumino-alkyd coating, the surface is smooth and the surface roughness R
z is 5 μm or less.

The surface of the smooth coating portion 18 is shown in FIG.
As shown by, the legal display 3 is drawn on the front side of the high-pressure gas container 11 with a predetermined red paint. On the other hand, as shown in FIG. 1 (B), on the back side of the high pressure gas container 11, a smooth coated surface 1
The legal display 4 showing the owner etc. is drawn from the top with the same white paint.

In FIGS. 1 (A) and 1 (B), the above-mentioned smoothness is shown in the shaded portion, that is, in the entire outer peripheral surface of the upper half of the body plate 12 from the upper end of the body plate 12 to the central portion of the body plate 12. A non-slip portion 19 is provided on the coating portion 18 and the displays 3 and 4.

The anti-slip portion 19 is formed by applying a resin paint (anti-slip paint 20) having an anti-slip effect. The anti-slip paint 20 is a transparent paint so that the legal gray color of the smooth coating part 18 and the red and white of the displays 3 and 4 can be made to appear without being damaged.

The non-slip coating material 20 has good adhesion to the smooth coating portion 18 of the undercoat, has rust resistance and weather resistance, and does not have a smooth surface, but has fine irregularities. Rough surface having, that is, surface roughness Rz
A coating material having a thickness of 30 to 200 μm is used. In this embodiment, a urethane resin paint mixed with powder having a required particle diameter is used as the paint. The above powder is
As the particle size is increased, the surface roughness Rz is increased and the anti-slip action can be improved. However, when the particle size of the powder is increased, the nozzle is likely to be clogged when the paint is sprayed by the nozzle. Therefore, the surface roughness Rz is 30 to 2
A powder in the range of 00 μm is preferable.

As described above, in the portion where the anti-slip portion 19 is provided, as shown in FIG. 2, the smooth coating portion 18 is provided on the surface of the steel plate forming the body plate 12, and the surface of the smooth coating portion 18 is provided. Indications 3 and 4 are drawn by painting.
The smooth coating part 18 on the surface of the
A non-slip portion 19 is provided on the surface of the body, and the body plate 12 is laminated and coated. The coating of each part described above may be performed by coating and naturally drying, and then coating of the next layer may be performed, or baking coating may be sequentially performed.

When the high-pressure gas container 11 is provided with the non-slip portion 19, when the worker rolls the high-pressure gas container 11 as shown in FIG. 10, the hand 5B is applied to the anti-slip portion 19 to rotate. With this, slipping of the hand 5B can be prevented. Therefore, the valve cap 1 protruding from the top mirror 13 with the other hand
When the non-slip portion 19 is rotated while gripping 5, the rotational force can be sufficiently transmitted to the high-pressure gas container 11, and the workability of transportation work can be improved. In addition, there is no risk that the high-pressure gas container 11 will be overturned due to slippage of the hand and the finger holding the valve cap 15 will be inserted into the opening 15a of the cap and injured. , Improve safety. Thus, according to the high pressure gas container 11 of the first embodiment, the hand 5B
It is possible to improve the inconvenience of transport work caused by slippage of the sheet and to enhance safety. Further, in the first embodiment, since the non-slip portions 19 are provided on the surfaces of the legal displays 3 and 4, there is also an advantage that the legal displays 3 and 4 are hard to disappear.
In addition, in the first embodiment, the anti-slip portions 19 are provided on the entire outer peripheral surface, but it is not always necessary to provide the entire anti-slip portions 19, and the anti-slip portions 19 may be provided in a stripe shape at intervals in the circumferential direction.
It is only necessary to provide the anti-slip portions 19 at least at two places where the operator puts his / her hand on.

FIGS. 3A and 3B show the second embodiment. In the second embodiment, as shown by the diagonal lines in the figure, the non-slip coating is applied to the entire outer surface of the mirror 13 and to the position ⅓ from the upper end of the body plate 12, that is, on the upper side of the high pressure gas container 11. 20 is directly applied to the steel plate surfaces of the top mirror 13 and the body plate 12 to form the non-slip portion 19. In this case, the anti-slip paint is a legal gray color and has anticorrosive properties. On the other hand, the ground mirror 14 is arranged from below the non-slip portion 19 of the body plate 12.
A smooth coating portion 18 is provided on the steel plate surface up to the lower end of the. That is, as shown in FIG. 4, the high-pressure gas container 11 is divided into upper and lower parts and coated with different kinds of paint.

The legal display 3 on the front side is drawn on the surface of the non-slip part 19, and the display 4 on the rear side is such that the upper part is on the surface of the non-slip part 19.
The remaining part is drawn on the surface of the smooth coating part 18.

In the high pressure gas container 11 of the second embodiment,
Since the non-slip portion 19 is also provided on the celestial mirror 13, when the operator applies the hand 5B to the shoulder 13a of the celestial mirror 13 to roll and move the high-pressure gas container 11, the hand 5B can be prevented from slipping, Similar to the first embodiment, workability and safety of transportation work can be improved.

FIGS. 5A, 5B and 6 show a third embodiment. In the third embodiment, the body plate 12, the sky mirror 13, the ground mirror 14
The entire outer surface is coated with anti-slip paint directly on the surface of the steel plate. That is, the anti-slip paint 20 is applied to the entire outer surface of the high-pressure gas container 11 to provide the anti-slip portion 19.

In particular, in the third embodiment, the high pressure gas container 11
Since the entire surface of the high pressure gas container 11 is covered with the non-slip portion 19, the high pressure gas container 11 can be transported reliably and smoothly without slipping, no matter where the worker puts his / her hand on the high pressure gas container 11 during the transportation work.

In addition, in the third embodiment, the number of coating steps is one.
There is an advantage that you can save it. However, since the non-slip paint usually has a higher unit price than the smooth paint, the cost is high. Therefore, it is also preferable to apply the anti-slip coating material having a high unit price only to necessary portions as in the first and second embodiments.

In the first to third embodiments, the anti-slip paint is sprayed and applied, but the anti-slip paint may be applied by using a brush or a roller.

In the first to third embodiments described above, the anti-slip paint 20 is applied to provide the anti-slip portion 19, but in the fourth embodiment, instead of the anti-slip paint 20, a non-slip sheet is used. The non-slip portion 19 is provided by using. That is, in the fourth embodiment,
A non-slip sheet 19 is provided at the same position as that shown in FIGS. 1A and 1B, and as shown in FIG. After providing the coating section 18 and providing the required displays 3 and 4 on the smooth coating section 18,
A non-slip sheet 21 is attached to form a non-slip portion 19.

The anti-slip sheet 21 has a surface roughness Rz obtained by engraving or printing fine irregularities on one surface 22a of a sheet material 22 having rust prevention and weather resistance by embossing or printing. 30-200 μm
I am trying. An adhesive 23 is applied to the other surface 22b of the sheet material 21. The sheet material 21 is made of hard vinyl chloride, polyethylene, polypropylene, penton, polycarbonate, Teflon, heat-resistant vinyl chloride, methyl methacrylate, polyvinylidene chloride, polyisobutylene, or the like. The adhesive 23 is
Various adhesives such as nitrile rubber and neoprene rubber-based elastomer adhesives can be used.

In the fourth embodiment, the anti-slip sheet 21 is used.
Is colorless and transparent, and can be made to appear without impairing the color arrangement of the gray-colored smooth coating portion 18 provided on the surfaces of the body plate 12, the top mirror 13, and the ground mirror 14, and the painted displays 3, 4. I am trying. In the fourth embodiment, as in the first to third embodiments, the non-slip portion 19 is formed. Therefore, if the non-slip portion 19 is applied to the hand and rotated, The slippage can be prevented, and the workability and safety of the high-pressure gas container 11 can be improved.

Further, in the fourth embodiment, the non-slip sheet 2
Since 1 is surface-treated to form fine irregularities on its surface, the surface roughness Rz can be easily formed to a required set value in the range of 30 to 200 μm, and a reliable anti-slip action is obtained. be able to. Other configurations and operations of the fourth embodiment are similar to those of the first embodiment.

Needless to say, instead of applying the anti-slip paint, the anti-slip sheet 21 of the second and third embodiments can be formed by sticking the same anti-slip sheet 21 as in the fourth embodiment. Yes. Needless to say, when the anti-slip portion 21 is formed by the anti-slip sheet 21, the anti-slip portion 19 may be provided on the entire outer circumference and the anti-slip portion 19 may be provided at a required position. Further, as shown in FIGS. 8A, 8B, and 8C, the shoulder 13a of the mirror 13 and the upper part of the body 12, or the shoulder 13a and the body 1
The non-slip part 1 having a width T of about 10 cm so as to include the upper part of
9 may be provided, and the non-slip portion 19 is the anti-slip paint 20.
Alternatively, the non-slip sheet 21 may be used.

Further, in each of the above-described embodiments, since the anti-slip portion 19 is provided on the surface of each of the displays 3 and 4, the transparent anti-slip paint 20 or the anti-slip sheet 21 is used, but it has a legal color. The non-slip paint 20 or the anti-slip sheet 21 may be used to form the non-slip portion 19, and the surfaces of the non-slip portion 19 may be provided with the required indications 3 and 4 in legal colors.

[0042]

As is apparent from the above description, the high pressure gas container according to the present invention has the following effects. First,
In the high-pressure gas container according to claim 1, since the non-slip portion having a roughened surface is provided at least on the upper side, when the worker rolls and conveys the high-pressure gas container, the operator puts his / her hand on the non-slip portion, thereby It can prevent slipping. Therefore, by rotating the non-slip part while holding the valve cap protruding from the celestial mirror with the other hand, the rotational force can be sufficiently transmitted to the high pressure gas container, and the rolling transfer of the high pressure gas container can be carried out smoothly. It can be carried out. In addition, there is no risk that the high-pressure gas container will fall sideways due to slipping of the hand due to slippage, and there is no risk of the fingers holding the valve cap being inserted into the opening of the cap and injuring the fingers. Is improved.

Further, when a transparent anti-slip portion is provided on the surface of the legal display, the legal display is not erased or peeled off, and the display can be clearly held. Furthermore, when the non-slip portion is formed on the entire outer surface of the high-pressure gas container, it is possible to prevent the hand from slipping regardless of which part of the high-pressure gas container the hand is placed on. It should be noted that the anti-slip portion may be provided at least at a position to which the hand is directed even if it is not provided on the entire outer peripheral surface.

In the high-pressure gas container of the second aspect of the present invention, since the non-slip portion is formed by applying the anti-slip paint, the high-pressure gas container can be surely formed at the place where the operator puts his / her hand on. Further, in the high-pressure gas container having the structure of claim 3, since the non-slip sheet is adhered to form the non-slip portion, it is possible to perform a simple operation by simply adhering the sheet to a place where the anti-slip portion is formed. A non-slip portion can be provided. Further, since the non-slip sheet is subjected to surface processing to form minute irregularities on its surface, it is possible to easily form the surface roughness Rz to a required size, and surely prevent slipping. You can

The high-pressure gas container having the structure according to claim 4 has a surface roughness Rz of 30 to 200 μm, which makes the surface rougher than the surface roughness of the conventional high-pressure gas container of 5 μm, so that reliable sliding is ensured. It can be stopped, and the safety and workability of the worker can be improved.

[Brief description of drawings]

FIG. 1 shows a first embodiment of the high pressure gas container of the present invention,
(A) is a front view and (B) is a rear view.

FIG. 2 is an enlarged cross-sectional view of a main part of a hatched portion of FIGS.

FIG. 3 shows a second embodiment of the high pressure gas container of the present invention,
(A) is a front view and (B) is a rear view.

FIG. 4 is a cross-sectional view of essential parts of a second embodiment.

FIG. 5 shows a third embodiment of the high pressure gas container of the present invention,
(A) is a front view and (B) is a rear view.

FIG. 6 is a cross-sectional view of essential parts of a third embodiment.

FIG. 7 is a cross-sectional view of essential parts of a fourth embodiment.

8 (A), (B) and (C) are sectional views showing modified examples of the high pressure gas container of the present invention.

FIG. 9 shows a conventional high-pressure gas container, (A) is a front view,
(B) is a rear view.

FIG. 10 is a diagram showing a specific example for deriving the surface roughness.

FIG. 11 is a drawing showing a rolling and conveying state of a high-pressure gas container.

[Explanation of symbols]

 3, 4 Display 11 High-pressure gas container 12 Body plate 13 Top mirror 14 Ground mirror 15 Valve cap 18 Smooth coating part 19 Non-slip part 20 Anti-slip paint 21 Non-slip sheet

Claims (4)

[Claims] 1. A high-pressure gas container having a structure in which a top mirror and a bottom mirror are fixed to upper and lower openings of a body plate, and a non-slip portion having a roughened surface is provided on at least an upper side of the high-pressure gas container. container. 2. The high-pressure gas container according to claim 1, wherein the non-slip portion is coated with a non-slip paint. 3. The high-pressure gas container according to claim 1, wherein the non-slip portion is formed by sticking a non-slip sheet. 4. The non-slip portion has a surface roughness Rz of 30.
The high-pressure gas container according to any one of the preceding claims, wherein the high-pressure gas container is set in a range of ˜200 μm.