JPH024919Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a container gasket interposed between the mouth of a container body and a lid that closes the mouth.

(Prior Art) This type of conventional gasket uses a cushion gasket made of foam material or the like in the shape of a disk, and by sandwiching the gasket between the mouth and the lid, the gasket is attached to the mouth. It was pressed against the edge of the opening.

(Problem that the invention aims to solve) Therefore, the amount of variation in the distance between the opening and the lid that allows the gasket to function as a gasket is only the length of expansion and contraction in the thickness direction due to elastic deformation of the gasket material itself. Therefore, there has been a problem in that the function of the gasket is easily impaired due to, for example, slight loosening of the lid or an error in the thickness of the gasket. In addition, in order to increase the elastic deformation margin in the thickness direction of the packing to a certain extent, it is necessary to increase the thickness of the packing, which increases the material cost.

In view of the above-mentioned problems, the present invention achieves a reliable packing function even if the distance between the mouth and the lid varies widely, and also requires less forming material and can be manufactured at low cost. The purpose is to

(Means for Solving the Problem) The technical means of the present invention for solving this technical problem is that the container body 1 is provided with a cylindrical projecting part through the shoulder part 3 and a large cylindrical part 4 on the base end side. A mouth part 2 having a small cylindrical part 5 on the tip side via a step part 6, a cylindrical side wall 9 that is screwed into the large cylindrical part 4 of the mouth part 2, and a ceiling wall that closes the outer end of the cylindrical side wall 9. This container packing is interposed between a lid body 8 and a lid body 8 having a diameter of 10, and is made of elastic synthetic resin. A closing wall 15 that comes into contact with the closing wall 15, an elastic bending portion 16 that is formed in an overhang on the outer periphery of the closing wall 15 and is elastically deformable so as to press the closing wall 15 against the small cylinder portion 5, and the elastic bending portion 16 The cylindrical side wall 9 of the lid body 8 is provided on the outer periphery of the portion 16.
The step part 6 of the opening part 2 is integrally provided with a regulating wall 17 which makes contact with the top wall 10 and regulates the screwing of the lid body 8 so as to restrict the lid body 8 from coming into contact with the shoulder part 3. It is in.

(Function) According to the present invention, the gasket 13 interposed between the mouth part 2 and the lid body 8 is attached to the mouth part 2 as shown in FIG.
and the lid body 8, the elastic bending portion 16 is bent by elastic deformation as shown by the solid line from the state of the imaginary line, comes into contact with the lid body 8, and softly bends the closing wall 15 toward the mouth portion 2. to press. Also at this time, the regulation wall 17
is in contact with the step part 6 of the mouth part 2 and the top wall 10, and the lid body 8
The cylindrical side wall 9 is tightened to prevent the cylindrical side wall 9 from coming into contact with the shoulder 3 so that the screwing into the mouth 2 does not become any deeper.

(Example) Hereinafter, an example of the present invention will be described based on the drawings. In FIGS. 1 to 4, 1 is a container body for cosmetics or other containers, and eau de cologne or other liquid is stored inside. 2 is a cylindrical mouth formed at the upper end of the container body 1;
It is arranged to project upward in a cylindrical shape. This mouth part 2
has a large cylindrical portion 4 on the base end side and a small cylindrical portion 5 on the distal side with a stepped portion 6 in between, and the small cylindrical portion 5 has an outflow hole 7 formed therein. Reference numeral 8 denotes a lid body that closes the mouth portion 2, and has a cylindrical side wall 9 that is screwed into the large cylindrical portion 4 of the mouth portion 2, and a top wall 10 that closes the outer end of the cylindrical side wall 9.

Reference numeral 13 denotes a container gasket interposed between the mouth portion 2 and the lid body 8, which is integrally molded from a relatively flexible and elastic synthetic resin such as polyethylene, and is attached to the opening edge 14 of the small cylinder portion 5. A closing wall 15 that abuts to close the outflow hole 7 of the small cylindrical portion 5, an elastic bent portion 16 extending outward from the outer periphery of the closing wall 15 over the entire circumference, and the elastic bent portion. It is integrally provided with annular regulating walls 17 extending vertically from the outer circumferential ends of 16, respectively. The elastic bending portion 16 is thin and bent into a corrugated cross section, and is configured to be easily elastically deformed.

As shown in FIG. 1, when the lid body 8 is attached to the mouth part 2 of the container body 1, the regulating wall 17 The upper and lower end surfaces of the lid body 8 are configured to abut against the lower surface of the ceiling wall 10 and the upper surface of the stepped portion 6, respectively, to restrict further spiral movement of the lid body 8. At this time, the closing wall 15 is pressed against the small cylinder part 5 by elastic deformation of the elastic bending part 16, which is particularly easily elastically deformed, so as to close the outflow hole 7 of the small cylinder part 5.

(Effects of the invention) According to the invention, the packing 13 is formed of an elastic synthetic resin and comes into contact with the opening edge 14 of the small cylindrical part 5 so as to close the outflow hole 7 of the small cylindrical part 5. an elastic bending portion 16 that is formed to protrude from the outer periphery of the closure wall 15 and is elastically deformable so as to press the closure wall 15 against the small cylinder portion 5;
It is provided on the outer periphery of the elastic bending portion 16 and the lid body 8
The step part 6 of the mouth part 2 and the regulating wall 17 which makes contact with the top wall 10 and regulates the screwing of the lid body 8 are integrated so as to regulate the contact of the cylindrical side wall 9 with the shoulder part 3. The amount of variation in the distance between the mouth portion 2 and the lid body 8 that allows the packing 13 to function is mainly the length of the elastic bending portion 16 that bends due to elastic deformation, and this variation amount is Therefore, even if there is some slack in the lid 8 or a dimensional error in the gasket 13, the function of the gasket 13 can be sufficiently maintained, and the opening 2 of the gasket 13 can be It is now possible to make the hit very soft,
Durability is also improved. Furthermore, there is no need to obtain the above-mentioned variation allowance by the amount of change in thickness due to elastic deformation, as in the past, and therefore the thickness of the packing 13 can be reduced to the minimum necessary thickness, and material costs can also be saved. Also, since it is made of synthetic resin, it has the advantage of being easy to manufacture and being mass-producible.

Furthermore, since the seal 13 includes the regulating wall 17 that regulates the abutment of the cylindrical side wall 9 of the lid body 8 against the shoulder portion 3, it is possible to effectively prevent the lid body 8 from being excessively tightened. This prevents bending deformation or damage of the elastic bending portion 16, and also prevents the cylindrical side wall 9 of the lid 8 from coming into tight contact with the shoulder 3, making it difficult to remove the lid 8, or causing the lid 8 to deform. There will be no more. Further, a gap can be maintained between the cylindrical side wall 9 of the lid body 8 and the shoulder portion 3, and the appearance is also improved.

[Brief explanation of drawings]

Fig. 1 is a side sectional view of the packing showing an embodiment of the present invention in a state in which it is installed, and Fig. 2 is a plan view of the packing.
FIG. 3 is a side sectional view of the packing, and FIG. 4 is a side view of the packing. 1... Container body, 2... Mouth, 3... Shoulder, 4
...Large tube part, 5...Small tube part, 6...Stepped part, 7...
Outflow hole, 8... Lid body, 9... Cylindrical side wall, 10...
Top wall, 13... Container packing, 14... Opening edge, 15... Closing wall, 16... Elastic bending part, 17
...Regulatory wall.

Claims (1)

[Scope of utility model registration request] A mouth part 2 that projects from a container body 1 in a cylindrical shape through a shoulder part 3 and has a large cylindrical part 4 on the base end side and a small cylindrical part 5 on the distal end side with a step part 6 interposed therebetween; Large cylinder part 4
This container packing is interposed between a lid body 8 having a cylindrical side wall 9 that is screwed into the lid body 8 and a top wall 10 that closes the outer end of the cylindrical side wall 9, and is made of an elastic synthetic resin. , a closing wall 1 that comes into contact with the opening edge 14 of the small cylinder part 5 so as to close the outflow hole 7 of the small cylinder part 5;
5, and is formed overhanging the outer periphery of the closing wall 15,
and an elastic bent portion 16 that is elastically deformable so as to press the closing wall 15 against the small cylinder portion 5;
is provided on the outer periphery of the lid body 8, and is in contact with the stepped portion 6 of the mouth portion 2 and the top wall 10 so as to restrict the contact of the cylindrical side wall 9 of the lid body 8 with the shoulder portion 3. A gasket for a container, characterized in that it is integrally equipped with a regulating wall 17 that regulates the flow of the container.