JPH0424844Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a synthetic resin container for paint, which can suitably store paint, especially water-based paint.

``Prior art'' When paint is stored and transported in a synthetic resin container, when the outside temperature rises and the air inside the container expands, the ceiling of the lid and the bottom of the container bulge outward. However, there were drawbacks such as not only an unsightly appearance but also difficulty in stacking the containers stably.

``Problem that the invention seeks to solve'' The inventor of this invention believes that the ceiling of the lid and the bottom of the container will bulge outward even if the outside temperature rises or falls.
As a result of research into a synthetic resin container for paint that does not dent inward, we arrived at this idea.

``Structure of the device'' The present invention has a container lined up consisting of a container body and a ring-shaped body fixed to the upper end of the side wall of the container body, and a lid body placed over the container. A thick ring-shaped part is formed along the container, a recess is formed in the outer periphery of the cylindrical part hanging down from the ceiling, and an air hole is formed in the recess. When the thick ring part of the ring body is fitted into the recess, a gap is formed between the vertical wall surface of the recess and the inner wall surface of the thick ring part, and the ceiling surface of the recess and the top surface of the thick ring part are formed. The present invention relates to a synthetic resin container for paint, which is characterized in that the two are in light contact with each other.

The present invention will be described below with reference to the drawings.

Fig. 1 is a plan view showing an example of the annular body in the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is a lid body in the present invention. A front view showing an example, Fig. 4 is a line B-B in Fig. 3.
5 is a cross-sectional view taken along line C- in FIG.
A sectional view taken along line C and FIG. 6 are partial sectional views showing an example of a synthetic resin container for paint according to the present invention.

The container body 1, the annular body 2, and the lid body 3 are formed by injection molding synthetic resin such as polyethylene or polypropylene.

The container body 1 has a circular bottom and a cylindrical side wall erected around the bottom.

The ring-shaped body 2 includes a horizontal ring-shaped part 4, an outer cylinder part 5 formed below the horizontal ring-shaped part 4, an inclined part 6 extending obliquely downward from the inner circumference of the horizontal ring-shaped part 4, and an inner peripheral edge of the inclined part 6. A horizontal ring-shaped portion 7 formed along the horizontal ring-shaped portion 7, an inner cylinder portion 8 formed below the horizontal ring-shaped portion 7, and a thick-walled ring-shaped portion 9 formed along the inner peripheral edge of the horizontal ring-shaped portion 7.
have. A large number of partition walls 10 are provided between the outer cylinder part 5 and the inner cylinder part 8 of the annular body 2 for reinforcement. The ring-shaped body 2 is placed over the upper end of the side wall of the container body 1, and the protrusion 11 of the ring-shaped body 2 and the upper end of the side wall are melted and bonded by ultrasonic welding, so that the ring-shaped body 2 is fixed to the upper end of the side wall. ing.

The lid body 3 has a circular ceiling part 12 and a cylindrical part 13 formed downward from the periphery of the ceiling part 12. air holes 15 are provided. The number of air holes 15 may be one or three or more, and the diameter of the air holes 15 is generally preferably about 1 mm. A projecting piece 16 is formed above the recess 14 and projects obliquely upward and outward, and an inclined surface 17 is formed below the recess 14 that is inclined obliquely downward and inward.

To cover the container with the lid 3, press the lid 3 onto the container from below and insert the annular body 2 into the recess 14 of the lid 3.
It is only necessary to fit the thick ring-shaped part 9 into the recess 14.
4 vertical wall surface 18 and inner wall surface 19 of thick ring-shaped portion 9
A gap 20 is formed between the recess 14 and the recess 14 .
The ceiling surface 21 and the upper surface 22 of the thick ring-shaped portion 9 are in slight contact.

To open the lid 3, insert a screwdriver or the like between the protruding piece 16 of the lid 3 and the inclined part 6 of the container.
All you have to do is pry the lid 3 upwards.

"Effects of the invention" In the synthetic resin container for paint according to the invention, when the outside temperature rises and the air inside the container expands and the internal pressure increases, the thick ring part 9 is pushed slightly outward, causing the inside of the container to increase. The air flows through the air holes 15, voids 20 and recesses 14.
Since the liquid escapes to the outside through between the ceiling surface 21 of the container and the upper surface 22 of the thick ring-shaped portion 9, the ceiling portion 13 of the lid 3 and the bottom of the container do not bulge outward.

Furthermore, when the temperature of the outside air drops and the pressure inside the container decreases, the cylindrical part 13 of the lid 3 is pressed slightly inward, thereby reducing the sealing performance between the thick ring part 9 and the ceiling part 21. However, outside air enters the container through the air hole 15, and the pressure inside the container becomes equal to the pressure of the outside air, so that no deformation of the container occurs.

As a result, the contents of the container may spill out,
Containers stacked in multiple layers do not collapse.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an example of the annular body in the present invention, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is a lid body in the present invention. A front view showing an example, Fig. 4 is a line B-B in Fig. 3.
5 is a cross-sectional view taken along line C- in FIG.
A sectional view taken along line C and FIG. 6 are partial sectional views showing an example of a synthetic resin container for paint according to the present invention. 1... Container body, 2... Annular body, 3... Lid body,
9... Thick ring-shaped part, 12... Ceiling part, 13... Cylindrical part, 14... Recessed part, 15... Air hole, 18...
Vertical wall surface, 19... Thick wall surface, 20... Void, 2
1...Ceiling surface, 22...Top surface.

Claims (1)

[Claims for Utility Model Registration] A container consisting of a container body and a ring-shaped body fixed to the upper end of the side wall of the container body, and a lid body placed over the container, and the ring-shaped body has a ring-shaped body attached along the inner periphery. A thick ring-shaped part is formed, a recess is formed in the outer periphery of the cylindrical part hanging down from the ceiling, and an air hole is formed in the recess, and the lid is placed over the container and inserted into the recess of the lid. When the thick ring part of the ring body is fitted into the ring body, a gap is formed between the vertical wall surface of the recess and the inner wall surface of the thick ring part, and the ceiling surface of the recess and the upper surface of the thick ring part are connected to each other. A synthetic resin container for paint that is characterized by light contact.