JP4415405B2 - Screw lid type sealed container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
Invention of the present application, to various contents of container body helical thread pieces to the outer peripheral surface of the neck of the opening of the hollow container is formed to accommodate a threaded screw member on the inner peripheral surface is formed It is related to a sealed container that is sealed by attaching and screwing a screw lid. Among them, a plurality of inverted T-shaped spiral screw pieces are provided with locking pieces on the outer peripheral wall surface of the mouth and neck of the hollow container body. In addition, a screw lid is formed by providing a plurality of screwed screw pieces each including a screw screw to be screwed to the screw piece and an engagement protrusion to be locked to the lock piece on the inner peripheral wall surface of the lid body, The present invention relates to a screw lid type sealed container that allows a lid to be screwed into the mouth and neck of the container body quickly and easily, and the screwed screw lid is formed so as not to be easily reversed by an engaging projection. .
[0002]
[Prior art]
Conventionally, screw lid type sealed containers that have been used to seal the opening of the container using screw lids are liquid containers containing beverages and other liquids, wide mouth food containers containing jam and other foods, creams and emulsions Etc. have been widely used in cosmetic containers that contain etc., containers that contain shoes, wax, etc.
And, these containers described above are those in which a screw lid formed of metal or ebonite or synthetic resin is screwed and sealed to the mouth and neck of the container body formed of glass or synthetic resin, Or what was made to seal by screwing a metal screw lid on the container main body formed by the whole genus has been used.
[0003]
The screw lid type sealing container as described above can be easily opened and closed again without using special tools, and can be closed again. It is used for stool.
However, in the container as described above, a single thread is formed at a predetermined pitch on the mouth and neck of the container body in one or two rounds, and a screw having the same pitch as the thread is formed. The screw lid formed on the inner peripheral surface is screwed into the container body to seal the opening of the container, and no consideration is given to preventing the screw lid from loosening.
[0004]
In the case of the wide-mouthed container having a large diameter as described above, the screw lid groove is meshed with the tip of the thread of the mouth and neck of the container body, and the screw lid is accurately fitted to the mouth and neck of the container body. In order to be screwed, there is a case where the screw lid cannot be screwed unless it is carefully rotated over a half circumference or more.
Moreover, in the sealed container with the screw lid screwed as described above, the screw lid may be loosened after the screw lid is screwed, and the screw lid may loosen naturally. Even if the screw lid is tightly tightened, the screw lid may be loosened due to external vibration or the like. Especially when oil-based contents are contained in the container, the screw surface Since the oil component adheres to the surface and the frictional force between the lid and the container main body is reduced, the screw lid becomes more easily loosened, which is problematic in terms of airtightness of the container.
[0005]
Therefore, in order to allow the screw lid to be screwed to the mouth / neck portion of the container with as little rotation as possible, as shown in FIG. In addition to providing the spiral screws 21a and 21b, the screw lid 22 is formed by providing the screw lid 22 with the screw screws 22a and 22b to be screwed with the two spiral screws. There are known ones that can be screwed by rotation of one turn or less.
Such containers, when compared to a container conventionally used or found, can be screwed into the helical thread of the neck engagement threaded portion easily the container body 21 of the screw cap 22, but There is a possibility that a return phenomenon may occur in the screwed screw cover 22 and the airtightness may be lost. In particular, in the case of a metal container, there is a lack of consideration regarding the point that the return phenomenon is likely to occur.
[0006]
Further, examples of the container in which the screw lid screwed to the mouth and neck of the container is not loosened are those described in Japanese Utility Model Publication Nos. 56-48057 and 57-9239.
And these container bodies are formed so that the end of the screw thread provided in the mouth-and-neck portion is slightly wider and the screw groove is narrowed, and are screwed together to tighten the screw lid, or The screw thread of the mouth and neck part is formed higher than the other screw thread in the vicinity of the terminal part, and is screwed so that the screw lid is press-engaged in the gap fitting state.
However, since these containers only Re should such carefully performed over time for alignment when the screw cap closing, the screw cap quickly, smoothly there is a problem in that it is impossible to be screwed, also 、 Since the thread is irregular, molding becomes a little cumbersome.
[0007]
Therefore, when the screw lid is screwed into the container body and sealed, the screw lid can be screwed into the mouth neck by rotating within 90 degrees when the screw lid is screwed into the container body and sealed. A sealed container as described in Japanese Patent Application Laid-Open No. 10-203547 has been proposed as being capable of being quickly screwed onto the mouth and neck of the container and preventing the screwed screw cap from being loosened naturally. ing.
[0008]
As shown in FIG. 9, the sealed container according to the present invention has four first engaging projections 33 that are engaged by rotating the lid 32 on the outer peripheral surface of the mouth-and-neck portion 31 a of the container body 31. Four second engaging protrusions 34 that engage with the first engaging protrusions 33 of the mouth and neck are formed on the inner peripheral surface of the body 32, and the lid 32 is attached to the mouth and neck 31 a of the container body 31. The lid body 32 is quickly engaged with the container main body 31 by the rotation of the container body 31 to seal the opening, thereby preventing the return of the container.
On the lower side of the first engagement protrusion 33 of the container body 31, as shown in FIG. 10, there is a recess 33a that engages with a protrusion 34a provided on the upper side of the second engagement protrusion 34 of the lid 32. The lid 32 is formed so as to be detachably engaged in the rotation direction of the lid 32, and a stopper piece 34 b is projected from the rear end portion of the second engagement protrusion 34 of the lid 32. Yes.
[0009]
In the above-described invention, the lid is attached to the container main body and rotated to be sealed, but the lid can be engaged by rotation within 90 degrees, and the engaged lid is naturally Although the rotation does not return, the engagement relationship between the first engagement projection and the second engagement projection is horizontal engagement, so the opening is sealed with a lid. that the pressing force is difficult to increase the tightness becomes constant, also there is a problem in that to smooth the start biting.
Therefore, it has a simple structure screwing means is only it is slightly rotating the lid, easily and quickly, and can be smoothly meshed, which make it possible to enhance the sealing pressure screw The appearance of a lid-type sealed container is desired.
[0010]
[Problems to be solved by the invention]
The present invention has been devised to solve the above-described problems, eliminate the occurrence of screw return in the screw lid type sealed container, and maintain airtightness. The structure to screw and hold the screw lid on the mouth and neck of the mouth is made as simple as possible, it can be applied to any hollow container and sealed, and the mouth and neck of the hollow container can be turned by rotating the screw lid a little. Further, the screw lid is configured to be able to be screwed into the mouth / neck portion of the container body quickly, smoothly, and accurately without being inclined. In addition, the screw lid screwed to the mouth and neck of the container is configured not to be loosened and opened by an external force such as vibration or impact except when the opening operation is performed. A screw lid type sealed container is provided.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the invention of the present application forms a short helical screw formed by a part of a conventional helical screw, instead of a plurality of helical screws provided in the mouth and neck of the hollow container, Forming a container body by forming a plurality of inverted T-shaped spiral screw pieces projecting a short locking piece on the upper surface of the short spiral screw on the outer peripheral surface of the mouth and neck of the hollow container; A screw cover provided with a short screw screw that is screwed to the inverted T-shaped spiral screw piece and a screw screw piece projecting an engagement protrusion that is locked to the lock piece on the inner peripheral surface of the lid forming a, when screwing the screw cap on the neck of the container body, the only but is slightly rotate the screw cap which has deposited on the neck, a spiral screw piece neck screwing the screw member as well as to allow screwing and allowed locking the locking piece, to configure to be able to eliminate the return screw cap .
[0012]
DETAILED DESCRIPTION OF THE INVENTION
The screw lid type sealed container according to the present invention is a short locking piece on the upper surface of a short spiral screw 3a having a shape obtained by cutting a part of a spiral curve shortly. 3b is formed in a spiral screw piece 3 having a substantially inverted T-shape, and a plurality of the helical screw pieces 3 are projected at equal intervals on the outer peripheral surface of the mouth / neck portion of the container body. 1 is formed.
Further, a screw screw provided on the inner peripheral surface of the lid body that is screwed onto the mouth-neck portion of the container body 1 to be sealed is screwed into both lower sides of the inverted T-shaped spiral screw piece 3. A threaded screw piece 4 formed with a helical threaded screw 4a and having an engaging projection 4b protruding above the short helical threaded screw 4a so as to be engaged with the short locking piece 3b. Are formed to form the screw lid 2.
When the screw lid 2 formed in this manner is attached to the container body 1 and screwed, the distance to turn the screw lid 2 is shortened so that the screw lid 2 can be quickly screwed. Configure to prevent return.
[0013]
After containing cream-like cosmetics and other contents in a hollow container having a plurality of inverted T-shaped spiral screw pieces 3 formed in the mouth and neck of the container body 1 in the above-described configuration A screw lid 2 formed with a threaded screw piece 4 (convex inward as seen in FIG. 2) formed by a threaded screw 4a and an engaging projection 4b to be screwed onto the spiral threaded piece 3 is formed on the mouth and neck portion. fitting, since the deposition, when rotating the screw cap 2 in the closing direction, screw cap 2 is screwed a screw member 4 only by a slight rotation of within 30 degrees, of the container body 1 mouth neck A screw lid type sealed container that is easily engaged with a plurality of spiral screw pieces 3 projecting from the outer peripheral surface of the section and screwed onto the mouth and neck while smoothly rotating to seal the opening of the container. Formed.
[0014]
【Example】
Hereinafter, the sealed container of the present gun invention, based on one of the best examples is described in detail with reference to the drawings.
The present invention is a roller against the blank formed by punching by press working a metal plate, the body portion (only partial) of the container or each of the workpiece subjected to deep drawing to match the shape of the lid portion As shown in FIG. 1, a container is formed by rounding the opening end of the molded product to form an annular shape, and forming a spiral screw piece 3 having an inverted T shape on the cylindrical wall surface of the container part. It comprises a main body 1 and a screw lid 2 in which a screw thread piece 4 comprising a screw thread 4a and an engaging projection 4b is formed on a cylindrical wall surface of the lid portion. It is the sealed container comprised so that the said screw lid 2 could be detachably screwed.
[0015]
As shown in FIGS. 2 and 3, the above-described sealed container of the present invention has a short spiral shape formed by a part of the spiral strip 5 on the outer peripheral wall surface of the mouth neck near the open end of the container body 1. A plurality of spiral screw pieces 3 each having a substantially inverted T shape consisting of a screw 3a (protruding outward) and a short locking piece 3b protruding from the upper surface of the short helical screw 3a are formed at equal intervals by roller processing. (6 in the illustrated example) are formed, and the open end 1a is formed in an annular shape that is rounded into a cylindrical shape.
[0016]
Similarly , on the inner peripheral wall surface of the screw lid 2 near the opening end 2a , the spiral strip is engaged with the lower surface of the spiral screw 3a of the reverse T-shaped spiral screw piece 3. A plurality of screwed screw pieces 4 each having a short screwed screw 4a (convex inward) formed by a part of the screw 6 and an engaging protrusion 4b locked to the locking piece 3b are formed at equal intervals by roller processing. (Three in the example shown in the figure) are formed, and the open end 2a is formed in an annular shape that is rounded into a cylindrical shape.
[0017]
When the screw lid 2 formed as described above is attached to the mouth / neck portion of the container main body l, the screwed screw piece 4 of the screw lid 2 is smoothly placed between the spiral screw pieces 3 of the mouth / neck portion. and can be screwed into the helically threaded piece 3 provided in the mouth-and-neck portion of the container main body 1 with threaded screw member 4 is engaged easily threadedly engaging projection 4b is a container main body of the lid A sealed container that is locked so as to be orthogonal to the locking piece 3b is configured.
As shown in FIG. 3, if the packing 7 is further provided on the back surface of the top plate of the screw lid 2, the airtightness can be further improved.
[0018]
Various kinds of creams and waxes, or tablets, throats and other contents are accommodated in the hollow container body 1 formed as described above, and as shown in FIG. When the screw lid 2 formed so as to be screwed to the mouth and neck portion is covered, and then the screw lid 2 is rotated so as to be screwed to the spiral screw piece 3 of the mouth and neck portion of the container body 1, the screw Since the tip of the spiral screw piece 4 of the lid 2 meshes with the tip of the spiral screw 3a of the spiral screw piece 3 having an inverted T-shape of the container body 1, when further rotated, as shown in FIG. In addition, the threaded screw 4a portion of the threaded screw piece 4 of the screw lid 2 slides along the lower surface of the spiral screw 3a of the mouth-and-neck portion, and the engagement protrusion 4b of the screw lid 2 is the upper surface of the spiral screw 3a. , Slide over the engagement piece 3b and be screwed and locked.
[0019]
Then, in the sealed container in which the screw lid is screwed in this manner, the screw 4a of the screw lid 2 is closely screwed with the lower surface of the spiral screw 3a, and the lid body 2 is attracted to the opening end. As shown in the case of a conventional sealed container using a helical screw, the engagement protrusion 4b of the screw lid 2 is locked to the locking piece 3b of the mouth and neck. In addition, the phenomenon that the screw cap returns naturally does not occur.
The sealed container of the present invention having the above-described structure is provided with six helical screw pieces 3 at intervals of 60 degrees on the mouth and neck of the container body 1, so Alternatively, the screw lid 2 can be engaged with the helical screw piece 3 of the mouth-and-neck portion by simply rotating it about 30 degrees at the maximum angle (front and back), so that the screw lid 2 is short on the mouth-and-neck portion of the container body l. It can be quickly screwed in time.
[0020]
In the above-described embodiment, a short spiral screw 3a is provided at the mouth and neck of the container body, and an inverted T-shaped spiral screw piece 3 is provided in which a short locking piece 3b is projected from the spiral screw. A threaded screw piece comprising a threaded screw 4a and an engaging protrusion 4b so that the container body 1 formed on the container is engaged with the spiral screw 3a of the inverted T-shaped spiral screw piece 3 on the cylindrical wall surface of the lid. The screw cover 2 formed by providing the screw cover 2 is attached, and the screw screw 4a of the screw cover is screwed onto the spiral screw 3a of the spiral screw piece 3 provided on the mouth and neck portion. The locking protrusion 3b of the screw lid is locked to the locking piece 3b, and the screw lid 2 is prevented from returning completely and sealed.
[0021]
However, the invention of the present application can also have a simple structure in which the locking piece 3b of the helical screw piece 3 is omitted when there is no need to seal the screw lid so as to completely prevent it from returning. It is.
For example, as shown in FIG. 6 (b), the container body 11 having a short spiral screw piece 13 made of a part of a spiral thread is formed on the mouth / neck portion of the container body, and as shown in FIG. 6 (a). Further, a short screw 14a made of a part of a spiral strip formed on the peripheral wall surface of the lid so as to engage with the lower surface of the spiral screw piece 13 and an upper surface of the spiral screw piece 13 are engaged. A screw lid 12 provided with a threaded screw piece 14 formed of the formed engaging projection 14b is formed.
[0022]
Then, as shown in FIG. 7A, when the screw lid 12 is attached to the container main body 11 and rotated, the helical screw piece 13 of the container main body is screwed with the screw 14a of the screw lid 12. and clamped from above and below by the engaging projection 14b, as are shown in FIG. 7 (b), the can sealed container opening is sealed with a screw cap 12 is Katachitsuchinoe.
In the above-described sealed container, if the helical thread piece 13 of the container body 11 is shaped so that the rear end side becomes gradually larger than the front end side, the front end is bitten when screwed. Can be smoothly performed, and the screwed screw cover 12 is strongly screwed as it goes to the rear end of the spiral screw piece 13, so that the inner surface of the screw cover 12 is attracted to the open end of the container body 11. As a result, the airtightness is further improved, and the return phenomenon of the screw lid 12 can be prevented to some extent.
[0023]
Further, in the above-described embodiment, a screw lid in which a screw thread piece 4 is formed on a container body 1 in which a spiral thread piece 3 is formed in the mouth and neck by pressing a metal plate and processing a roller as a hollow container. However, the invention of the present application is not limited to the metal container as described above, and the hollow container body 1 is made of glass or the like. Needless to say, it is also possible to use a synthetic resin, and the screw cap 2 can be made of a synthetic resin or a bakelite instead of a metal. It is also possible to configure a sealed container formed by appropriately combining a container main body and a screw lid made of other different materials.
[0024]
【The invention's effect】
As described above, in the present invention, instead of the spiral thread formed on the mouth and neck of the container body, the container body formed with a plurality of short spiral screw pieces made of a part of the spiral line, Since the screw lid in which a short screw thread piece is formed on the inner peripheral surface of the lid body is detachably screwed to form a sealed container that can seal the opening of the hollow container, the screw lid is Only by rotating a little, the screwing screw portion of the screwing screw piece of the screw lid can be easily engaged with the helical screw portion of the helical screw piece.
[0025]
Then, the locking piece provided on the helical thread piece of the mouth neck part, since so as to lock the locking projection provided on threaded screw piece of the screw cap, screwed screw cap return prevention Then, except when the screw lid is opened, there is no case that the lid is loosened and opened by an external force such as vibration or impact.
Further, in the present invention, the helical screw piece of the mouth and neck and the screwing screw piece of the screw lid have a shape formed by a part of the spiral strip, so that each screw piece has an inclined shape. The screwed screw of the screw lid with respect to the helical screw of the mouth-and-neck portion is smoothly engaged, and the screwed screw lid is strongly tightened to improve the airtightness.
[Brief description of the drawings]
FIG. 1 is a perspective view of a screw lid (a) and a container body (b) showing a sealed container of the present invention.
2 is a side view for explaining the shapes of a screw thread piece of a screw lid (a) and a screw thread piece of a container body (b) of the sealed container shown in FIG. 1. FIG.
3 is a cross-sectional view of the screw lid (a) and the container body (b) of the sealed container shown in FIG.
[4] Ru side view der screw-cap sealed containers (a) a container body (b) shown in FIG.
FIG. 5 is an explanatory diagram for screwing a screw lid onto the container body shown in FIG. 4;
FIG. 6 is a side view showing a screw lid (a) and a container body (b) according to a modification of the present invention.
7 is an explanatory diagram for screwing the screw lid shown in FIG. 6 onto the container main body. FIG.
FIG. 8 is a perspective view showing a conventional container provided with a plurality of spiral screws.
[9] Ru perspective view showing the sealed container of the preceding embodiment of the present invention.
10 is an explanatory view showing an engaging structure of the container shown in FIG. 9. FIG.
[Explanation of symbols]
1. 1. Container body Screw lid 3. Spiral screw piece 3a. Spiral screw 3b. 3. locking piece 4. Threaded screw piece 4a Threaded screw 4b engaging protrusion 5. Spiral strip of the mouth and neck 6. Spiral strip of lid Packing

Claims (5)

A sealed container in which a screw lid is screwed onto a mouth and neck of a hollow container body to seal an opening, and a short spiral screw formed by a part of a spiral strip on an outer peripheral surface of the mouth and neck of the container body A plurality of pieces are provided at equal intervals in the circumferential direction to form a container main body to which the lid can be screwed, and a short threaded screw formed by a part of a spiral strip on the cylindrical inner peripheral surface of the lid. A plurality of screwing screw pieces each having an engagement protrusion provided to face the screwing screw surface are provided at equal intervals, and the spiral is formed between the screwing screw and the engagement protrusion of the screwing screw piece. A screw lid, wherein a screw lid is formed to be screwed in a state where a screw piece is sandwiched, and the screw lid can be quickly and smoothly screwed onto the mouth neck of the container body. Type sealed container. A sealed container in which a screw lid is screwed onto a mouth and neck of a hollow container body to seal an opening, and a short spiral screw formed by a part of a spiral strip on an outer peripheral surface of the mouth and neck of the container body A plurality of helical screw pieces provided with locking pieces protruding in the circumferential direction are provided at equal intervals in the circumferential direction to form a container body to which the lid body can be screwed. A plurality of screwing screw pieces each having a short screwing screw formed in part and an engaging protrusion provided to face the screwing screw surface are provided at equal intervals, and the spiral is interposed between the screwing screw pieces. With the screw piece clamped, a screw lid that engages and engages with the engaging protrusion is formed on the locking piece, and the screw lid is quickly and smoothly screwed onto the mouth and neck of the container body. A screw lid type sealed container characterized by being configured to be wearable. The spiral screw piece of the mouth-and-neck portion is formed in an inverted T shape in which a short locking piece protrudes from an upper surface of a short helical screw formed by a part of a spiral strip. A screw lid type sealed container according to claim 1 or 2. The spiral screw piece of the mouth-and-neck part is formed so that a rear end part side of a short spiral screw formed by a part of a spiral strip is slightly larger than a tip part side. The screw lid type sealed container according to claim 2 or claim 3 . The screw thread piece of the lid body has a short screw screw formed by a part of a spiral strip in contact with the lower surface of the spiral screw piece, and at the same time an engagement protrusion is in contact with the upper surface of the spiral screw piece. 3. The screw cap type sealed container according to claim 2, wherein the screw cap type sealed container is formed so as to be screwed and the engaging protrusion is formed to engage with a locking piece of the helical screw piece .

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