JPS6119063Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a barrel-shaped container that has a barrel-like appearance by covering the upper and lower parts of the container body with cover caps, and the present invention makes it possible to easily and reliably fix the container body and the cover cap. , relates to something that prevents relative rotation between the two.

The conventional fixing structure for this type of container is as shown in FIG.
An annular outward flange 103 is provided protruding from the lower edge, while an annular inward flange 105 extending substantially horizontally is provided protruding from the inner surface of the upper fitting member 104 that is fitted onto the upper part of the bottle main body 101. The outward flange 103 of the bottle body is attached to the inner peripheral edge of the inward flange 105.
A downwardly bent fitting wall 106 is provided for fitting the outer peripheral surfaces, and a continuous engaging protrusion 107 is provided on the inner surface of the fitting wall 106 to be engaged with the lower surface of the outer periphery of the outward flange 103. It was constructed by being attached to.

Moreover, the fitting operation between the two is performed as follows. First, when the upper fitting member 104 is attached to the opening of the bottle body 101 from above, the inward flange 10
The fitting wall 106 and the engagement protrusion 107 at the tip end of the fitting wall 106 come into contact with the upper tapered surface of the outward flange 103 and stop. Therefore, the upper fitting member 1 is attached to the bottle body 101.
04 is pushed down one more step, and the inward flange is rotated and swung downward by its elastic action using the flange base end 108 as a fulcrum. In this way, the fitting wall 106
and the engaging protrusion 107 are integrally moved elastically downward, so that the outer circumferential surface of the outward flange 103 and the fitting wall 10
6 and the engagement between the lower surface of the outer periphery of the outward flange 103 and the engagement protrusion 107 were completed at the same time.

However, according to the configuration of this prior art, the inward flange 10 is
5 is elastically rotated and swung in the vertical direction to fit and fix the convex part (outward flange) of the bottle main body 101 and the recessed part (inner surface of the fitting wall of the inward flange) of the upper fitting member 104. Due to the adoption of this structure, the following problems arose.
That is, first, since the swing fulcrum 108 of the inward flange 105 is located at a higher position than the horizontal line Even if you push it down one more step, the inward flange 1
If a downward pressing force is not directly applied to 05, the inward flange 105 itself will only elastically deform downward in an arched manner. Therefore, simply by lowering the upper fitting member 104, the fitting wall 106 and the engagement protrusion 107 at the tip of the flange do not pass through the outward flange 103. From the above, it can be seen that simply attaching the upper fitting member 104 to the opening of the bottle body 101 will not cause the outward flange 103 and the fitting wall 106 to fit together, and in order to fit them together, it is necessary to The inward flange 105 must be rotated and swung downward by the pressing force of the upper fitting member 10.
There was an inconvenience that 4 could not be fixed mechanically. Second, the fitting between the outward flange 103 and the fitting wall 106 is performed on the circumferential line C of the fitting wall 106, which is rotated and swung downward using the flange base end 108 as a fulcrum. A high degree of dimensional accuracy is required to fit the two members together on C, and if there is a dimensional error in both, the fixation becomes uncertain. Therefore, in order to ensure the fixation of the upper fitting member 104, the fitting wall 10
Although it is necessary to provide an engaging protrusion 107 in addition to 6,
Even in this case, since the radius from the swing fulcrum 108 to the fitting wall 106 is constant, fixation cannot be ensured unless the protruding distance L of the engaging protrusion 107 from the inner surface of the fitting wall 106 is set to a certain extent. On the other hand, if the protrusion distance L of the engagement protrusion 107 is set large, the resistance when getting over the maximum diameter part of the outward flange 103 becomes large, and the relationship between the outward flange 103 and the fitting wall 10 increases.
6 becomes difficult to fix. Thirdly, when the fitting wall 106 and the engaging protrusion 107 get over the outward flange 103, the inward flange 105 is elastically deformed downward in an arched manner to enable the fitting wall 106 etc. to get over the fitting wall 106 and the like. However, since the base end 108 of the inward flange 105 is continuously connected to the peripheral wall of the upper fitting member 104, and the inward flange 105 extends substantially horizontally,
Even if the inward flange 105 receives radial pressure from the outward flange 103 side, the inward flange has a structure that does not easily bend or buckle. Therefore, the fitting wall 106 and the like face considerable resistance in getting over the outward flange 103, which tends to make the operation of fixing the upper fitting member 104 even more troublesome.

Next, according to the configuration of this prior art, the bottle body 1
01 and the upper fitting member 104, the fitting member rotates after the upper fitting member 104 is attached, and the upper fitting member is not in the fixed position. There were circumstances that made it impossible to keep it.

Therefore, the present invention was devised to solve such problems of the conventional technology. By adopting an elastic locking structure that is completely different in concept from the conventional fitting structure, the dimensional error of each component is reduced. The purpose of the present invention is to not only absorb water, but also to easily and reliably fix the cover cap to the container body.

Another object of the present invention is to provide a locking member on the joint surface between the outward flange on the container body side and the elastic locking member of the cover cap to maintain the opening of the cover cap in a fixed position.

The gist of the present invention, which has the above-mentioned purpose, is to utilize the combined elastic rocking of the elastic locking member provided on the cover cap side in the horizontal and vertical directions, and to apply this to the lower part of the outward facing flange provided on the container body side. The purpose is to elastically lock the cover cap in the concave annular groove and to maintain the cover cap in a fixed position by the rotation preventing member.

The structure and operation of the present invention will be explained below based on illustrated embodiments. In FIGS. 3 to 9 showing the first embodiment of the present invention, 1 is a container body made of a plastic bottle or the like; 11 12 is an outward flange horizontally protruding from the lower edge of the mouth and neck of the container body; 13 is a concave annular groove carved on the outer periphery of the lower surface of the outward flange 12; A rotation preventing member 14 such as an engagement groove is formed on the ceiling wall. The reason why this rotation preventing member 14 is formed on the ceiling wall of the concave annular groove 13, which is one level lower than the lower surface of the outward flange 12, is due to the pressure applied by the tool that is brought into contact with the lower surface of the outward flange 12 during the subsequent capping process. This is to prevent the rotation stopper member 14 from being damaged by. Note that 15 is the container body 1
When the cover cap 2, which will be described later, is fitted, it is a locking protrusion that comes into close contact with the tip of the elastic locking member 22 of the cover cap 2 to prevent eccentricity of the cover cap 2. They are attached to the peripheral wall at predetermined intervals.

Reference numerals 2 and 3 denote annular cover caps made of plastic that are fitted on the top and bottom of the container body 1, and by fitting these cover caps 2 and 3 to the container body 1, the container body 1 is made to have a barrel-shaped appearance. ing.

The upper annular cover cap 2 is connected to the peripheral wall 2.
An annular elastic locking member 22 having a substantially L-shaped cross section is integrally provided on the inner surface of the 0 with a connecting portion 21 interposed therebetween. The elastic locking member 22 is configured to fix the container body 1 and the cover cap 2 by elastically locking its tip below the outward flange 13 on the container body 1 side. In addition, the elastic locking member 22
It consists of a hanging piece 24 that descends from the top of the peripheral wall 20 of the cover cap 2 with a predetermined gap 23 between it and the surrounding wall 20, and a horizontal piece 25 that continues to extend toward the center line O side of the container body 1. There is.

Due to its elastic action, the hanging piece 24 of the elastic locking member 22 swings in the horizontal direction about the bent part 26 formed between it and the connecting part 21 as a fulcrum. On the other hand, due to its elastic action, the horizontal piece 25 also allows the hanging piece 2 to
Since the elastic locking member 22 of the present invention swings in the vertical direction using the bending portion 27 formed between the elastic locking member 27 and the elastic locking member 22 as a fulcrum, the elastic locking member 22 of the present invention performs a composite elastic swing in the horizontal direction and the vertical direction. Further, the horizontal piece 25 is arranged at a lower position than the outward flange 12 on the side of the container body. This is cover cap 2
This is to ensure that the horizontal piece 25 of the elastic locking member is elastically locked to the inner circumferential surface of the concave annular groove 13 at the same time as the horizontal piece 25 of the elastic locking member is moved downward. Furthermore, the inner diameter R ₁ of the horizontal piece 25 is smaller than the outer diameter R ₂ of the outward flange 12, so that at the same time that the inner end of the horizontal piece 25 passes through the circumferential surface of the outward flange 12, the horizontal piece 25 Due to the restoring force, it elastically swings downward and is locked in the concave annular groove 13 below the outward flange 12.

Reference numeral 28 denotes a rotation preventing member formed on the inner peripheral edge of the upper end of the horizontal piece 25, which is formed of a radial engagement protrusion, etc., and is connected to the rotation preventing member 14 provided in the concave annular groove 13 below the outward flange 12 with a predetermined width. W is engaged to prevent the cover cap 2 from rotating and to hold it in place. Note that the locking members 14 and 28 on the outward flange side and the elastic locking member are not limited to the combination of engagement grooves and engagement protrusions, but may be a combination of engagement protrusions, such as the meshing of spline teeth, for example. It may be.

Reference numeral 29 denotes an annular leg portion made of an elastic material that is integrally hung from the lower surface of the horizontal piece 25 and comes into contact with the shoulder of the container body 1, so that the horizontal piece 25 of the elastic locking member 22 can overcome the circumferential surface of the outward flange 12. Sometimes elastic deformation (buckling)
While allowing the horizontal piece 25 to be pulled down, after crossing over, it elastically returns and pushes up the horizontal piece 25, and the horizontal piece 25 is biased slightly upward by the reaction force from the container body, and the outward flange 12 Lower concave ring groove 1
3. It has the effect of being clamped in place within 3. Note that the number of annular leg portions 29 shall be appropriately determined as necessary. Note that the lower end 29a of the elastic leg portion 29 is tapered to facilitate elastic deformation.

In the present invention having the above configuration, when the cover cap 2 is attached to the container body 1, the horizontal piece 25 of the elastic locking member 22 comes into contact with the upper surface of the outward flange 12, so that the elastic part 25 is elastic in an arched manner with the bent part 27 as a fulcrum. transform. At this time, since the hanging piece 24 is provided with an escape gap 23 between it and the cap peripheral wall 20, it elastically swings outward in the horizontal direction using the bent portion 26 as a fulcrum, and the horizontal piece 25 itself is elastically restored. Together with the force, the horizontal piece 25 moves over the flange. Immediately before completing passing through the outward flange 12, the lower end of the elastic leg 29 is connected to the container body 1.
However, the elastic legs 29 themselves are elastically deformed by the pressing force of the cover cap 2, allowing the horizontal piece 25 to be pulled down slightly, so that the horizontal piece 2
5 is not obstructed from passing through the flange. Then, at the moment when it gets over the outward flange 12, the horizontal piece 2
5 returns downward due to its elastic restoring force, enters the lower side of the outward flange 12, and is elastically locked in the concave annular groove 13. At this time, the horizontal piece 25 and the locking convex portion 15 of the concave annular groove 13 are in close contact with each other without any play. Therefore, the inconvenience of the cover cap 2 attached to the container body 1 being displaced in the horizontal direction can be completely prevented. After attaching the cover cap 2 in this manner, by rotating the cover cap in any direction, the locking members 14 on the outward flange side and the elastic locking member side can be rotated.
28 completes the mounting sequence.

10 and 12 show another embodiment of the present invention. This second embodiment differs from the first embodiment in that a concave ring is formed on the lower surface of the outward flange 12. The only difference is that the engagement protrusion 15 is removed from the groove 13, and the engagement width W between the concave annular groove 13 and the horizontal piece 25 is increased. Therefore, since the other configurations are completely the same, the same reference numerals as in the first embodiment will be given and the explanation thereof will be omitted.

This invention consists of the above structure and operation,
In the process of lowering the cover cap, the elastic locking member can be elastically locked in the concave annular groove below the outward flange of the container body, and the locking operation of the outward flange and the elastic locking member can be performed by locking the cover to the container body. Since it can be performed at the same time as the cap installation, the cover cap installation and fixing operations are simplified.
This has the advantage of being mechanized. In addition, the horizontal piece of the elastic locking member that is elastically locked in the concave annular groove of the outward flange is brought into close contact with the locking protrusion in the concave annular groove, so that there is no space between the container body and the upper cover cap. As a result, there is no possibility that the cover cap will shift in the horizontal direction completely. Furthermore, since the hanging piece of the elastic locking member that elastically swings in the horizontal direction apparently functions to intersect the horizontal piece at right angles to the outward flange that moves in the vertical direction, compare the contact width in the vertical direction. It can be made larger. Therefore, compared to the conventional fitting on the circumferential line, not only can the two members be connected more reliably, but also dimensional errors between the members can be effectively absorbed. Furthermore, since a rotation preventing member is provided on the joint surface of the outward flange and the elastic locking member, various effects such as being able to position the cover cap in a fixed position are obtained.

[Brief explanation of the drawing]

1 and 2 are explanatory diagrams of main parts showing the configuration of the prior art, FIG. 3 is a longitudinal sectional front view showing the barrel-shaped container of the present invention, and FIG. 4 is an outward flange and an elastic locking member according to the present invention. FIGS. 5 and 6 are explanatory views showing the locking member provided on the bottom surface of the outward flange according to the present invention, and FIGS. 7 and 8 are horizontal views showing the fixed state of the main part. FIG. 9 is an explanatory view showing a locking member formed on the upper end surface of the piece, and FIG. FIG. 10 is an enlarged view of main parts showing another embodiment of the barrel-shaped container according to the present invention, FIG.
FIG. 2 is an explanatory view showing a fitted state between the rotation prevention member provided on the bottom surface of the outward flange and the rotation prevention member formed on the upper end surface of the horizontal piece. Explanation of symbols, 1... Container body, 11... Mouth and neck, 12... Outward flange, 13... Concave annular groove, 1
4, 28... Rotating member, 15... Locking convex portion,
2, 3...Cover cap, 20...Peripheral wall, 21
... Connecting portion, 22 ... Elastic locking member, 23 ... Gap, 24 ... Hanging piece, 25 ... Horizontal piece, 26,2
7...Bending part (swinging fulcrum), 29... Leg part, 29
a...Leg tip, O...Center line, R ₁ ...Inner diameter,
R ₂ ...outer diameter, W...locking width.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a barrel-shaped container in which annular cover caps are fitted to the upper and lower parts of the outer periphery of the container body, an annular outward flange is provided protruding from the lower edge of the mouth and neck of the container body, A concave annular groove is carved on the outer periphery of the lower surface of the flange, and on the inner surface of the cover cap that is fitted onto the upper part of the container body, there is a hanging piece that hangs down from the top end of the cap circumferential wall through a gap, and a hanging piece following the hanging piece. An elastic locking member formed by continuously forming a horizontal piece extending inward in the horizontal direction is integrally protruded, and a lower surface of the horizontal piece of the elastic locking member is provided to absorb a reaction force from the container body. An arbitrary number of elastic legs are vertically disposed to bias the horizontal piece upward so that the joint portion of the horizontal piece is brought into pressure contact with the lower surface of the outward flange. A barrel-shaped container characterized by having a rotation prevention member provided on the joint surface. (2) The barrel-shaped container according to claim 1, wherein the hanging piece of the elastic locking member elastically swings in the horizontal direction, or the horizontal piece elastically swings in the vertical direction. (3) Utility model registration claim 1 or 2, characterized in that the rotation preventing member of the outward flange is formed on the ceiling wall surface of a concave annular groove carved in the outer periphery of the lower surface of the outward flange. Barrel-shaped containers described in any of the following paragraphs.