JP6454532B2 - Bottle containers and bottle container products - Google Patents

Description

  The present invention relates to a bottle container and a bottle container-filled product.

  In a bottle container called a so-called delamination bottle, a bottle body that contains contents is a laminated bottle including at least two layers of an outer layer and an inner layer (for example, Patent Document 1).

  This type of bottle container has a cap portion that is attached in an airtight manner to the bottle body in a state in which the contents are contained in the inner region of the inner layer. The cap part has a pump part etc., and can discharge the contents.

  When the inner region of the inner layer is depressurized by discharging the contents, the inner region is reduced and the inner layer is peeled off from the outer layer, so that the outside air flows between the inner layer and the outer layer. . This achieves the purpose of being able to be used up to the end as much as possible even for highly viscous contents, and the purpose of suppressing the contact between the contents and the outside air while maintaining the outer shape of the outer layer. Can do.

JP-A-4-339759

By the way, in this kind of bottle container, it is difficult for the user to replace the bottle body including the contents with respect to the cap portion after the contents are used up.
This is because, in this type of bottle container, in order to achieve the intended purpose as described above, it is necessary to attach the cap portion to the bottle body in an airtight state.
When a user such as an elderly person with weak power replaces the cap body, it is conceivable that the cap part is loosely attached to the bottle body. In that case, the airtightness between the cap part and the bottle body cannot be realized, and there is a possibility that the outside air flows into the internal region of the inner layer through the gap between the bottle body and the cap part. If outside air flows into the inner area of the inner layer, the inner area of the Delami bottle is less likely to shrink, and the contents are not used up to the end and the remaining amount increases.

  The present invention has been made in view of the above problems, and even when the user replaces the bottle main body with respect to the cap section, it is possible to easily realize airtightness between the cap section and the bottle main body. It relates to bottle containers.

The present invention
A bottle body having an opening at one end;
A cap part that is detachably attached to the one end of the bottle body and seals the opening;
A bottle container comprising:
The bottle body is
An outer layer,
An inner layer that is releasably laminated to the outer layer and contains the contents;
A laminated bottle having
The cap part is
A pump unit that discharges the contents by a user's discharge operation;
A closing part for closing the opening together with the pump part;
A cover disposed around the one end of the bottle body;
Have
The bottle container
A first hermetic part configured to maintain an airtight state when the cap part is attached to the bottle body;
A second airtight portion configured to maintain an airtight state even when the cap portion is attached to the bottle body and the first airtight portion is not in an airtight state; Have
The first hermetic part is constituted by the one end part of the bottle body and a closing part of the cap part,
The second airtight portion is constituted by an outer peripheral surface of the one end portion of the bottle main body and an inner peripheral surface of the cover portion, and the bottle on the other end portion side of the bottle main body from the first airtight portion. Provided is a bottle container that maintains an airtightness between a main body and the cap portion.

The present invention also provides:
A bottle container of the present invention;
The contents contained in the inner region of the inner layer;
A bottle container-packed product is provided.

  According to the present invention, even when the user replaces the bottle body with respect to the cap portion, it is possible to easily realize airtightness between the cap portion and the bottle body.

It is a longitudinal cross-sectional view of the bottle container which concerns on 1st Embodiment. It is the elements on larger scale of FIG. It is the perspective view which looked up at the bottle container which concerns on 1st Embodiment from the bottom face side. It is a longitudinal cross-sectional view of the bottom face vicinity of the bottle container which concerns on 1st Embodiment, Among these, (a) is sectional drawing along the AA line of FIG. 3, (b) is the BB line of FIG. FIG. It is a longitudinal cross-sectional view of the part of the bottle container according to the first embodiment in the vicinity of the opening, in which (a) shows a state in which the cap portion is normally attached, and (b) shows that the cap portion is loosely attached. Indicates the state. It is a longitudinal cross-sectional view of the partial expansion of the bottle container which concerns on 2nd Embodiment. It is a longitudinal cross-sectional view of the part of the bottle container according to the third embodiment in the vicinity of the opening, in which (a) shows a state in which the cap portion is normally attached, and (b) shows that the cap portion is loosely attached. Indicates the state. It is a longitudinal cross-sectional view of the partial expansion of the bottle container which concerns on 4th Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same components are denoted by the same reference numerals, and description thereof will be omitted as appropriate.

[First Embodiment]
The first embodiment will be described with reference to FIGS.

The bottle container 100 according to this embodiment includes a bottle body 10 having an opening 10d at one end (for example, an upper end), and a cap 20 that is detachably attached to the one end of the bottle body 10 and seals the opening 10d. And comprising.
The bottle body 10 is a laminated bottle having an outer layer 10a and an inner layer 10b that is detachably laminated with respect to the outer layer 10a and accommodates the contents 50.
The cap unit 20 includes a pump unit 30 that discharges the contents 50 by a user's discharge operation, a closing unit 21 that closes the opening 10d together with the pump unit 30, and a cover unit (around the one end of the bottle body 10). For example, it has an inner cylinder 22 and an outer cylinder 23).
The bottle container 100 has a first hermetic part 61 configured to maintain an airtight state when the cap part 20 is attached to the bottle body 10, and the cap part 20 is attached to the bottle body 10. And the second hermetic portion 62 configured to maintain the airtight state even when the first airtight portion 61 is not in the airtight state.
The first hermetic portion 61 is configured by one end portion of the bottle body 10 and the closing portion 21 of the cap portion 20.
The second airtight portion 62 is configured by an outer peripheral surface of one end portion of the bottle main body 10 and an inner peripheral surface of the cover portion, and the other end portion (for example, the bottom portion 15) side of the bottle main body 10 with respect to the first airtight portion 61. The airtightness between the bottle body 10 and the cap part 20 is maintained.

The one end part of the bottle main body 10 and the closing part 21 of the cap part 20 are in close contact with each other, whereby the airtightness between the bottle main body 10 and the cap part 20 is maintained in the first airtight part 61.
Moreover, the outer peripheral surface of the one end part of the bottle main body 10 and the inner peripheral surface of the cover part are in close contact with each other, so that the airtightness between the bottle main body 10 and the cap part 20 is maintained in the second airtight part 62. It is.

More specifically, for example, the first airtight part 61 is configured by the entire circumference of a part of one end of the bottle body 10 and a part of the cap part 20, and the bottle body 10 comes into close contact with each other. And the cap part 20 are kept airtight.
Moreover, the 2nd airtight part 62 is comprised by the perimeter of a part of outer peripheral surface of the one end part of the bottle main body 10, and the perimeter of a part of inner peripheral surface of a cover part, and when they mutually adhere, Airtightness between the bottle main body 10 and the cap part 20 is maintained. Here, a part of the outer peripheral surface of one end of the bottle main body 10 and a part of the inner peripheral surface of the cover part are both a part in the axial direction of the mouth-and-neck part 13 (in other words, the height of the bottle main body 10). Part of the direction).
In this embodiment, the 1st airtight part 61 is comprised by the perimeter of the front end surface 13d of the mouth neck part 13 of the bottle main body 10, and the packing 24 which the cap part 20 has, for example. The cap part 20 has a contact ring (not shown) instead of the packing 24, and this contact ring constitutes the first airtight part 61 together with the tip surface 13 d of the mouth neck part 13 of the bottle body 10. May be.
Moreover, the 2nd airtight part 62 is the annular rib 22a formed in the perimeter of the outer peripheral surface of the 3rd shoulder part 12c of the shoulder part 12 of the bottle main body 10, and the inner peripheral surface of the inner cylinder 22 of the cap part 20, for example. And the entire circumference. Here, the outer peripheral surface of the third shoulder portion 12c constituting the second hermetic portion 62 is at least a part of the outer peripheral surface of the third shoulder portion 12c in the axial direction of the mouth and neck portion 13. That is, a part or the whole of the outer peripheral surface of the third shoulder portion 12 c in the axial direction of the mouth and neck portion 13 constitutes the second airtight portion 62. Further, the inner peripheral surface of the inner cylinder 22 constituting the second hermetic portion 62 is a part of the inner peripheral surface of the inner cylinder 22 in the axial direction of the mouth and neck portion 13.

  Moreover, the bottle container stuffed goods which concern on this embodiment are provided with the bottle container 100 which concerns on this embodiment, and the content 50 accommodated in the internal area | region of the inner side layer 10b.

  Details will be described below.

As shown in FIG. 1, the bottle main body 10 is a bottomed cylindrical hollow body.
More specifically, the bottle body 10 includes, for example, a cylindrical body portion 11 whose lower end is closed by a bottom portion 15 and a shoulder portion 12 connected to the upper side of the body portion 11 so as to communicate with the body portion 11. And a cylindrical mouth and neck portion 13 connected to the upper side of the shoulder portion 12 so as to communicate with the trunk portion 11 via the shoulder portion 12.
The bottle main body 10 has a form that can stand on the horizontal plane by placing the bottom 15 on the horizontal plane.

The plane cross-sectional area of the lumen of the body 11 is larger than the plane cross-sectional area of the lumen of the mouth / neck portion 13. Further, the plane cross-sectional area of the lumen of the shoulder portion 12 is larger than the plane cross-sectional area of the lumen of the mouth and neck portion 13 and smaller than the plane cross-sectional area of the lumen of the trunk portion 11. The plane cross-sectional area of the lumen of the shoulder portion 12 is increased from the mouth-neck portion 13 side toward the trunk portion 11 side, for example.
For example, the body portion 11 is formed in a shape in which the plane cross-sectional area of the lumen slightly expands toward the bottom portion 15.

  As shown in FIG. 2, the mouth-and-neck portion 13 has a tip surface 13d positioned at the upper end thereof, and an opening 10d is formed inside the tip surface 13d. A screw thread 13 c is formed on the outer peripheral surface 13 a of the mouth and neck portion 13. Thereby, the outer peripheral surface of the mouth-and-neck portion 13 constitutes a male screw portion. That is, the external thread part is formed in the outer peripheral surface of the one end part of the bottle main body 10. FIG.

The shoulder 12 includes, for example, a first shoulder 12a connected to the upper side of the body 11, a second shoulder 12b connected to the upper side of the first shoulder 12a, and an upper side of the second shoulder 12b. And a third shoulder portion 12c connected to the lower side of the mouth and neck portion 13.
For example, the third shoulder 12c is formed in a cylindrical shape having a diameter larger than that of the mouth and neck 13, and is arranged coaxially with the mouth and neck 13.
The second shoulder 12b is formed with a slightly larger diameter than the third shoulder 12c. More specifically, for example, the second shoulder 12 b is formed to have an outer diameter equivalent to that of the inner cylinder 22.
The plane cross-sectional area of the lumen of the first shoulder portion 12a gradually increases from the second shoulder portion 12b side toward the trunk portion 11 side.

Further, the outer diameter of the third shoulder portion 12c is larger than the outer diameter of the mouth-and-neck portion 13 (the outer diameter of the cylindrical portion excluding the screw thread 13c). The outer diameter of the second shoulder portion 12b is larger than the outer diameter of the third shoulder portion 12c.
In plan view, the area of the region surrounded by the outline of the third shoulder portion 12 c is smaller than the area of the region surrounded by the outline of the trunk 11.

For example, in a state where the bottle body 10 is self-supporting on a horizontal plane, the axis (center axis) of the mouth-and-neck portion 13 is orthogonal to the horizontal plane.
And the cross-sectional area orthogonal to the axial center of the mouth-and-neck part 13 is the largest in the trunk | drum 11 among the trunk | drum 11, the shoulder part 12, and the mouth-and-neck part 13, and the mouth-neck part 13 is the smallest.

The bottle container 100 is a so-called delamination bottle, and the bottle body 10 is a laminated bottle composed of at least two layers of an outer layer 10a and an inner layer 10b.
The outer layer 10 a forms the outer surface (outer wall) of the bottle container 100. For example, the inner layer 10b is laminated over almost the entire inner surface of the outer layer 10a.
For example, the upper end portion of the inner layer 10b is hermetically bonded to the outer layer 10a over the entire circumference on the tip surface 13d of the mouth and neck portion 13. Thereby, it is suppressed that the space formed between the inner layer 10b and the outer layer 10a communicates with the inner region of the inner layer 10b.
The bottle body 10 is configured, for example, by blow molding a parison having a double cylinder structure.

  The materials of the outer layer 10a and the inner layer 10b are not particularly limited, but are preferably made of resin. As an example, the outer layer 10a can be polypropylene and the inner layer 10b can be nylon.

The content 50 is a liquid and is accommodated in the inner region of the inner layer 10b.
The use of the contents 50 is not particularly limited. As an example, the contents 50 may be liquid cosmetics such as cosmetic emulsions, cosmetic liquids, and foundations, and hair care agents such as treatments that do not wash away. Further, the content 50 may be a food such as a seasoning.
Although the viscosity of the content 50 is not specifically limited, For example, the viscosity in 30 degreeC can be 1 mPa * s-50,000 mPa * s (measured with a B-type viscometer).

  When the user performs a discharge operation on the pump unit 30, the content 50 in the inner layer 10 b is sucked by the pump unit 30 and discharged to the outside of the bottle container 100 through the pump unit 30.

Here, the outer layer 10a is formed with higher rigidity than the inner layer 10b, and has better shape retention than the inner layer 10b.
The bottle container 100 is used in a state where the opening 10 d of the mouth and neck portion 13 is sealed by the cap portion 20.
The bottle body 10 has an inlet (for example, an inlet slit 16a) for allowing outside air to flow between the inner layer 10b and the outer layer 10a (details will be described later).
For these reasons, when the contents 50 in the inner layer 10b are discharged to the outside of the bottle container 100 by the discharge operation and the inner area of the inner layer 10b becomes negative pressure, the inner area is reduced and the inflow port (inflow slit 16a) is reduced. ), The outside air flows between the inner layer 10b and the outer layer 10a, and the inner layer 10b peels from the outer layer 10a.
At this time, since the inflow of the outside air into the inner layer 10b is restricted, even when the viscosity of the content 50 is high, the content 50 can be used up to the end as much as possible.
At the same time, the contact between the contents 50 and the outside air can be suppressed while maintaining the outer shape of the outer layer 10a.

As shown in FIGS. 3 and 4A, for example, a pinch-off portion 16 is formed on the bottom portion 15 of the bottle body 10, and an inflow slit 16 a is formed in the pinch-off portion 16.
The pinch-off part 16 is blow-molded in a state where it is sandwiched by a mold clamping part (not shown) so that the four layers of the outer layer 10a, the inner layer 10b, the inner layer 10b and the outer layer 10a overlap each other at the end of the parison. It is a linear rib-shaped part formed by performing, and protrudes toward the outside of the internal region 14.
The inner layers 10b located on the inner side of the pinch-off portion 16 are joined to each other in an airtight manner. Accordingly, inflow of outside air from the pinch-off portion 16 to the inner region of the inner layer 10b is suppressed, and leakage of liquid in the inner region of the inner layer 10b from the pinch-off portion 16 is also suppressed.
However, in the pinch-off part 16, the inner layer 10b can be easily peeled from the outer layer 10a. For this reason, the boundary between the inner layer 10b and the outer layer 10a in the pinch-off portion 16 constitutes an inflow slit 16a for allowing outside air to flow between the inner layer 10b and the outer layer 10a. The inflow slit 16a is formed, for example, so as to cross the bottom portion 15 in the radial direction.

  The outside air that has flowed in between the inner layer 10b and the outer layer 10a from the inflow slit 16a circulates from the bottom 15 to the outer peripheral side of the bottle main body 10 and peels off the inner layer 10b and the outer layer 10a on the outer peripheral side of the bottle main body 10. Make progress (see FIG. 4A).

  Here, when the content 50 in the inner region of the inner layer 10b decreases and the inner layer 10b contracts, the lower end of the inner layer 10b can be prevented from lifting upward from the lower end of the outer layer 10a. In addition, the outer layer 10a and the inner layer 10b are bonded to each other through the adhesive layer 10c instead of the entire circumference of the bottle body 10 (see FIGS. 3 and 4B).

As shown in FIG. 2, the closing part 21 of the cap part 20 seals the opening 10 d together with the pump part 30.
The closing part 21 is formed in, for example, an annular shape (a so-called donut-like disk shape) in plan view. The inner diameter of the closing part 21 is set to be smaller than the opening 10d, and the outer diameter of the closing part 21 is set to be larger than the opening 10d.
The pump unit 30 is fixed to the blocking unit 21 in a state of passing through the central hole of the blocking unit 21.

A covering portion is fixed to the blocking portion 21.
The cover part has, for example, an inner cylinder (first cylindrical part) 22 and an outer cylinder (second cylindrical part) 23 each formed in a cylindrical shape. The outer cylinder 23 is formed larger in diameter than the inner cylinder 22 and is arranged around the inner cylinder 22.
For example, the inner cylinder 22 and the outer cylinder 23 are arranged coaxially with each other.
The upper ends of the inner cylinder 22 and the outer cylinder 23 are joined to the lower surface of the closing portion 21. That is, the cover part hangs down from the lower surface of the blocking part 21.

On the inner peripheral surface of the inner cylinder 22, a screw thread 22b for mounting the cap portion 20 to the mouth-and-neck portion 13 is formed. Thereby, the inner cylinder 22 comprises the internal thread part.
And the cap part 20 is made to the bottle main body 10 by screwing the inner cylinder 22 which is an internal thread part with the mouth neck part 13 which is an external thread part (the thread 13c and the thread 22b are screwed together). And can be attached detachably.
As described above, the inner cylinder 22 of the cover portion has a female screw portion that is screwed to the male screw portion formed on the outer peripheral surface of the one end portion of the bottle body 10, and the female screw portion is screwed to the male screw portion. As a result, the cap portion 20 is attached to the bottle body 10.
Further, in this way, the cover part is formed to have an inner cylinder (first cylindrical part) 22 attached to the mouth and neck part 13 at one end of the bottle body 10 and a diameter larger than the inner cylinder 22. 22 is a multi-cylinder (specifically, for example, a double cylinder) having an outer cylinder (second cylindrical part) 23 arranged around the circumference of the cylinder 22.

  On the lower surface of the closing part 21, a packing 24 constituting the first hermetic part 61 is provided at a portion located inside the inner cylinder 22. The packing 24 is formed in, for example, an annular shape, and the pump unit 30 passes through the center hole.

When the cap part 20 is attached to the bottle main body 10, the packing 24 is in an airtight state over the entire circumference of the distal end surface 13d of the mouth-and-neck part 13, and the first airtight part 61 is in an airtight state. ing.
That is, a part of one end portion of the bottle main body 10 constituting the first airtight portion 61 is an end surface (tip surface 13 d) on the opening 10 d side of the bottle main body 10, and a portion of the cap portion 20 constituting the first airtight portion 61. When the packing 24 is abutted against the end surface (tip surface 13d), the first hermetic portion 61 is in an airtight state.
Here, the upper end of the inner region of the inner layer 10 b is hermetically sealed by the front end surface 13 d of the mouth and neck portion 13 of the bottle body 10, the closing portion 21, the packing 24, and the pump portion 30.

On the other hand, the second airtight portion 62 includes an annular rib formed on one of the inner peripheral surface of the cover portion and the outer peripheral surface of one end portion of the bottle body 10.
In the case of this embodiment, the second hermetic portion 62 includes an annular rib 22 a formed on the inner peripheral surface of the inner cylinder 22.
That is, in the case of this embodiment, a part of the inner peripheral surface of the cover part constituting the second airtight part 62 is a part of the inner peripheral surface of the inner cylinder (first cylindrical part) 22.
The annular rib 22a is formed on the inner peripheral surface of the inner cylinder 22 at a portion below the portion where the thread 22b is formed.
The annular rib 22 a is a continuous annular rib that goes around the inner peripheral surface of the inner cylinder 22. The annular rib 22 a protrudes from the inner peripheral surface of the inner cylinder 22 toward the inner side in the radial direction of the inner cylinder 22.
The longitudinal cross-sectional shape of the annular rib 22a is, for example, a shape in which the top side of the annular rib 22a is rounded (see FIG. 5).

  When the cap part 20 is attached to the bottle main body 10, for example, a part of the third shoulder part 12 c of the shoulder part 12 in the axial direction of the mouth-and-neck part 13 over the entire circumference. The annular rib 22a is in airtight contact over the entire circumference of the outer peripheral surface, and the second airtight portion 62 is in an airtight state.

Here, the packing part 24 is in an airtight state over the entire circumference of the third shoulder part 12 c of the shoulder part 12 and the first airtight part 61 is in an airtight state. The cap part 20 is normal with respect to the bottle body 10. It is a case where it is attached to.
That the cap part 20 is normally attached to the bottle body 10 means that the inner cylinder 22 and the mouth-and-neck part 13 are in a state of being sufficiently deeply screwed with each other with their axes aligned.
However, the cap portion 20 is configured to be attached to the bottle body 10 even when the screwing between the inner cylinder 22 and the mouth neck portion 13 is not sufficiently deep (a loose state).
Alternatively, the cap portion 20 may be in a state of being attached to the bottle body 10 even when the axes of the inner cylinder 22 and the mouth-neck portion 13 are slightly inclined.
However, in these insufficient mounting states, it is assumed that the packing 24 is not in an airtight state over the entire circumference of the distal end surface 13d of the mouth and neck portion 13. That is, in an insufficient mounting state, at least a part of the distal end surface 13d in the circumferential direction is not in an airtight state with respect to the packing 24, and the first airtight portion 61 may not be in an airtight state. .
That is, the first hermetic portion 61 is configured to maintain an airtight state when the cap portion 20 is attached to the bottle body 10, but the cap portion 20 is attached to the bottle body 10. Sometimes it is not always airtight.

Under such circumstances, the bottle container 100 according to the present embodiment includes the second airtight portion 62 so that airtightness between the cap portion 20 and the bottle body 10 can be realized even in an insufficiently mounted state. .
That is, the annular rib 22a can be airtightly adhered over the entire circumference of a part of the outer peripheral surface of the bottle body 10 (for example, the outer peripheral surface of the third shoulder portion 12c) even in an insufficiently mounted state.
In other words, the annular rib 22a is formed even when the packing 24 is not tightly adhered over the entire circumference of one end of the bottle body 10 in a state where the cap part 20 is attached to the bottle body 10. It can adhere tightly over the entire circumference of the 10 outer peripheral surfaces.
In other words, the second airtight portion 62 can maintain the airtight state even when the cap portion 20 is attached to the bottle body 10 and when the first airtight portion 61 is not in the airtight state. It is configured as follows.

In order to realize this more suitably, for example, the annular rib 22a is provided on the entire circumference of the outer peripheral surface of the mouth neck portion 13 within a certain range in the axial direction of the male thread portion of the mouth neck portion 13 and the female screw portion of the inner cylinder 22. On the other hand, it is maintained in an airtight close state. That is, from the state in which the female screw portion is screwed to the male screw portion at the first screwing position (for example, the state shown in FIG. 5B), the female screw portion is deeper than the first screwing position to the male screw portion. The annular rib 22a is maintained in an airtight state over the entire circumference of the outer peripheral surface of the bottle body 10 until the screwed position is reached (for example, the state shown in FIG. 5A). Thus, the second hermetic portion 62 is maintained in an airtight state.
Therefore, the outer peripheral surface of the third shoulder portion 12c of the bottle main body 10 to which the annular rib 22a is in close contact is formed in, for example, a cylindrical shape having a constant diameter, or formed in a tapered shape that expands downward. Yes. That is, the outer peripheral surface of one end portion of the bottle main body 10 constituting the second airtight portion 62 may be formed in a tapered shape whose diameter increases toward the other end portion side (bottom portion 15 side) of the bottle main body 10.
When the outer peripheral surface of the third shoulder portion 12c of the bottle body 10 to which the annular rib 22a is in close contact is formed in a cylindrical shape with a constant diameter, even if the depth of screwing between the male screw portion and the female screw portion varies, The annular rib 22a can be brought into close contact with the outer peripheral surface of the third shoulder portion 12c of the bottle body 10 with a certain degree of contact force.
Here, the outer diameter of the outer peripheral surface of the third shoulder portion 12c of the bottle body 10 to which the annular rib 22a is in close contact may be set slightly larger than the inner diameter of the annular rib 22a. In this case, the annular rib 22a can be brought into close contact with the outer peripheral surface of the third shoulder portion 12c of the bottle body 10 by the elastic force (spring force) of the cover portion (for example, the inner cylinder 22).
In this case, the difference between the inner diameter of the annular rib 22a and the outer diameter of the third shoulder 12c is preferably 0.1 mm or more and 0.7 mm or less, and more preferably 0.3 mm or more and 0.6 mm or less. . By doing in this way, when changing the depth of screwing with the external thread part of mouth neck part 13 and the internal thread part of inner cylinder 22, annular rib 22a and the peripheral face of the 3rd shoulder part 12c mutually Relative movement can be performed while sliding in close contact. In addition, the annular rib 22a and the outer peripheral surface of the third shoulder 12c can be relatively moved smoothly in a state in which the annular rib 22a is in close contact with the sufficient strength.
Further, when the outer peripheral surface of the third shoulder portion 12c of the bottle body 10 is formed in a tapered shape whose diameter is expanded downward, the bottle body becomes deeper as the depth of screwing between the male screw portion and the female screw portion becomes deeper. The annular rib 22a can be more closely attached to the outer peripheral surface of the ten.

Further, the annular rib 22a is formed lower than the thread 22b so that the cap part 20 can be attached to the bottle body 10 without the annular rib 22a interfering with the thread 13c of the mouth-and-neck part 13.
That is, the inner peripheral surface of the inner cylinder 22 of the cover portion is formed on the reference surface 22c formed in a cylindrical shape, the thread 22b of the female screw portion formed on the reference surface 22c, and the reference surface 22c, so that the second airtightness is formed. The protrusion length of the annular rib 22a from the reference surface 22c is smaller than the protrusion length of the thread 22b of the female screw portion from the reference surface 22c.

  On the other hand, the outer peripheral surface of the third shoulder portion 12c is formed larger in diameter than the screw thread 13c so that the annular rib 22a can be in close contact with the outer peripheral surface of the third shoulder portion 12c.

The outer cylinder 23 has, for example, a small-diameter portion 23a and a large-diameter portion 23b that has a larger diameter than the small-diameter portion 23a and is connected to the lower side of the small-diameter portion 23a.
A step portion 23c is formed at the boundary between the small diameter portion 23a and the large diameter portion 23b.

  The outer cylinder 23 has, for example, an extending portion 23 d that extends downward from the inner cylinder 22. The extending part 23d is also formed in a cylindrical shape. The extending part 23d is configured by, for example, a lower part of the large diameter part 23b.

  In the cap part 20, the part containing the obstruction | occlusion part 21, the inner cylinder 22, and the outer cylinder 23 is integrally formed by injection molding, for example. The material of these parts is preferably polypropylene, high-density polyethylene, ABS (acrylonitrile butadiene styrene), or the like.

The bottle container 100 further includes an outer cap portion 40 that can be attached to the cap portion 20. The outer cap portion 40 is formed in a cylindrical shape having an opening 40a at the lower end, and the top surface of the outer cap portion 40 is closed.
By attaching the outer cap part 40 to the cap part 20 so that the small-diameter part 23a of the outer cylinder 23 is fitted into the outer cap part 40 from the opening 40a of the outer cap part 40, a pressed object having a discharge port 31b to be described later The member 31 and the like can be shielded from the outside of the bottle container 100.
In a state where the outer cap part 40 is attached to the cap part 20, the lower end of the outer cap part 40 abuts against the step part 23 c of the outer cylinder 23.

The discharge of the contents 50 from the bottle container 100 is performed by performing a discharge operation on the pump unit 30 in a state where the outer cap unit 40 is removed from the cap unit 20.
The pump unit 30 may have any structure as long as the structure can discharge the contents 50 to the outside of the bottle container 100 in accordance with the discharge operation.
Hereinafter, an example of a specific structure of the pump unit 30 will be described.

  As shown in FIG. 2, the pump unit 30 includes, for example, a pressed member 31, a connecting member 32, a piston 33, a pump cylinder 34, a first coil spring 35, a suction valve member 36, a second coil spring 37, a ball shape. A discharge valve member 38 and a suction pipe 39 are provided.

The pressed member 31 is a portion that is pressed by the user. The pressed member 31 has a discharge port 31 b and the non-pressed member 31 has a holding portion 31 a in which a fixing hole for holding the connecting member 32 is formed. Further, a discharge path connected to the upper side of the fixed hole is formed in the pressed member 31, and this discharge path allows the fixed hole and the discharge port 31b to communicate with each other.
A protruding ball stopper portion 31c against which the ball-shaped discharge valve member 38 abuts is formed on the lower surface of the upper end of the discharge passage.

The connecting member 32 is formed in a cylindrical shape. The upper end portion of the connecting member 32 is inserted and fixed in a fixing hole formed in the holding portion 31 a of the pressed member 31.
The connecting member 32 moves integrally with the pressed member 31 in accordance with the pressing operation on the pressed member 31.
The lower end portion of the connecting member 32 is inserted into a guide hole 21b formed at the center of the closing portion 21, and is held by the guide hole 21b. Thereby, the connection member 32 can slide up and down with respect to the guide hole 21b. However, the connecting member 32 is restricted from falling off from the guide hole 21b (is prevented from coming off).
A discharge valve seat 32 a that forms a discharge valve together with the ball-shaped discharge valve member 38 is formed on the inner peripheral surface of the connecting member 32. When the ball-shaped discharge valve member 38 is in close contact with the upper surface of the discharge valve seat 32a, the discharge valve is closed. When the ball-shaped discharge valve member 38 is separated from the discharge valve seat 32a, the discharge valve is opened. It is in a state.

The piston 33 is formed in a cylindrical shape.
The upper end portion of the piston 33 is inserted and fixed in the lower end portion of the connecting member 32. For this reason, the piston 33 moves up and down integrally with the connecting member 32.
The lower end portion of the piston 33 is an extended portion 33a. The expanded portion 33a has a shape that expands outward in the radial direction from the portion of the piston 33 above the expanded portion 33a.
The lower portion of the piston 33 including the expansion portion 33 a is inserted into the pump cylinder 34 from above the pump cylinder 34. The expansion portion 33 a is slidable up and down with respect to the pump cylinder 34 in a state where the outer peripheral surface thereof is in liquid-tight contact with the inner peripheral surface of the pump cylinder 34.

The pump cylinder 34 is formed in a cylindrical shape and is fixed to a holding slit 21 a formed in the central part of the closing part 21. The holding slit 21 a is a cylindrical slit that opens downward, and the pump cylinder 34 is fixed to the closing part 21 by inserting and fixing the upper end of the pump cylinder 34 into the holding slit 21 a. The pump cylinder 34 penetrates the packing 24 vertically.
A spring receiving portion 34 a, a suction valve seat 34 b, and a tube holding portion 34 c are formed at the lower end portion of the pump cylinder 34.
The spring receiving portion 34 a is formed by partially reducing the diameter of the lower end portion of the pump cylinder 34, and has an upper surface that receives the lower end of the first coil spring 35. This upper surface constitutes a recess that accepts the lower end portion of the first coil spring 35 together with the lower portion of the suction valve seat 34 b formed in a cylindrical shape and the peripheral wall portion of the pump cylinder 34. The spring receiving portion 34a is formed with a through hole that vertically penetrates the spring receiving portion 34a, and the lower portion of the suction valve member 36 is inserted into the through hole. When the suction valve is opened, the content 50 flows into the pump chamber 30a from the suction pipe 39 side through the through hole.
The intake valve seat 34b constitutes an intake valve together with the intake valve member 36. The intake valve seat 34b is formed in a cylindrical shape standing above the spring receiving portion 34a, and the seat surface on which the intake valve member 36 is in close contact is formed. Is formed. The lower surface of the upper end portion of the intake valve seat 34 b constitutes a spring receiving portion that receives the upper end of the second coil spring 37.
The tube holding portion 34c holds the suction tube 39 and is formed in a cylindrical shape that hangs down from the spring receiving portion 34a.

The first coil spring 35 is held in a compressed state between the upper surface of the spring receiving portion 34a of the pump cylinder 34 and the lower surface of the expansion portion 33a. For this reason, the first coil spring 35 urges the piston 33 upward.
When the user presses the pressed member 31 downward, the pressed member 31, the connecting member 32, and the piston 33 are integrally lowered against the bias of the first coil spring 35.
When the user releases the pressing operation on the pressed member 31, the pressed member 31, the connecting member 32, and the piston 33 are integrally raised in accordance with the bias of the first coil spring 35, and the pressed member 31, the connecting member 32, The piston 33 returns to the position shown in FIG.

The suction valve member 36 constitutes a suction valve together with the suction valve seat 34 b of the pump cylinder 34.
FIG. 2 shows a state in which the intake valve is closed when the intake valve member 36 is in close contact with the seat on the upper surface of the intake valve seat 34b. In this state, the suction valve member 36 passes through the suction valve seat 34b and the spring receiving portion 34a, and the lower end portion of the suction valve member 36 is positioned inside the pipe holding portion 34c.
A spring receiving portion 36 a that receives the lower end of the second coil spring 37 is formed at the lower end portion of the intake valve member 36.

  The second coil spring 37 is held in a compressed state between the spring receiving portion 36a of the intake valve member 36 and the spring receiving portion of the intake valve seat 34b. For this reason, the second coil spring 37 biases the suction valve member 36 downward in order to bring the suction valve member 36 into close contact with the seating surface of the suction valve seat 34b.

  The ball-shaped discharge valve member 38 constitutes a discharge valve together with the discharge valve seat 32a of the connecting member 32, and is formed in a spherical shape.

The suction pipe 39 is formed in a tubular shape, and is held by the pump cylinder 34 by inserting and fixing the pipe holding part 34c of the pump cylinder 34 to the upper end portion thereof.
The lower end portion of the pump cylinder 34 is open, and the suction pipe 39 and the pump cylinder 34 can communicate with each other through the opening. However, the opening at the lower end of the pump cylinder 34 is opened and closed by a suction valve.

Here, in the internal region of the connecting member 32, the region below the discharge valve seat 32 a, the internal region of the piston 33, and the internal region of the pump cylinder 34 below the expansion portion 33 a of the piston 33. A region combined with the region is referred to as a pump chamber 30a.
If the pressed operation is released after the pressed member 31 is pressed downward, the expansion portion 33a rises according to the urging force of the first coil spring 35, so that the pump chamber 30a expands and becomes negative pressure. Then, the suction valve member 36 is lifted upward against the bias of the second coil spring 37, and the suction valve is opened. As a result, the suction pipe 39 and the pump chamber 30a communicate with each other via the suction valve, so that the content 50 in the bottle body 10 is sucked into the pump chamber 30a via the suction pipe 39 and the suction valve.
In addition, when the pressed member 31 is pressed while the content 50 is filled in the pump chamber 30a, the content 50 in the pump chamber 30a is pressurized. At this time, the suction valve member 36 moves downward in accordance with the urging force of the second coil spring 37 and is seated on the seat surface of the suction valve seat 34b, so that the suction valve is closed. On the other hand, since the ball-like discharge valve member 38 is pushed by the contents 50 in the pump chamber 30a and moves upward, the discharge valve is opened. Therefore, the content 50 in the pump chamber 30a is pressed through the region above the discharge valve seat 32a in the connecting member 32, the discharge path in the pressed member 31, and the discharge port 31b in this order. It is discharged outside the member 31, that is, outside the bottle container 100.

According to the first embodiment as described above, the bottle container 100 is detachably attached to the bottle main body 10 having the opening 10d at one end (for example, the upper end) and the one end of the bottle main body 10. And a cap portion 20 that seals the opening 10d.
The bottle body 10 is a laminated bottle having an outer layer 10a and an inner layer 10b that is detachably laminated with respect to the outer layer 10a and accommodates the contents 50.
The cap unit 20 includes a pump unit 30 that discharges the contents 50 by a user's discharge operation, a closing unit 21 that closes the opening 10d together with the pump unit 30, and a cover unit (around the one end of the bottle body 10). An inner cylinder 22 and an outer cylinder 23).
The bottle container 100 has a first hermetic part 61 configured to maintain an airtight state when the cap part 20 is attached to the bottle body 10, and the cap part 20 is attached to the bottle body 10. And the second hermetic portion 62 configured to maintain the airtight state even when the first airtight portion 61 is not in the airtight state.
The first hermetic portion 61 is configured by one end portion of the bottle body 10 and the closing portion 21 of the cap portion 20.
The second airtight portion 62 is configured by an outer peripheral surface of one end portion of the bottle main body 10 and an inner peripheral surface of the cover portion, and the other end portion (for example, the bottom portion 15) side of the bottle main body 10 with respect to the first airtight portion 61. The airtightness between the bottle body 10 and the cap part 20 is maintained.
Therefore, even when the user replaces the bottle main body 10 with respect to the cap portion 20, it is possible to easily realize the airtightness between the cap portion 20 and the bottle main body 10.

  Accordingly, after the contents 50 are used up, the empty bottle body 10 is made disposable, while the cap part 20 is attached to the new bottle body 10 filled with the contents 50, thereby including the pump part 30. The unit 20 can be reused.

  The second hermetic portion 62 is an annular rib formed on the inner peripheral surface of the cover portion (for example, an annular rib 22a formed on a part of the inner peripheral surface of the cover portion in the axial direction of the mouth and neck portion 13). )including. Thereby, the airtightness in the 2nd airtight part 62 is realizable only by adding a simple structure (annular rib) to the bottle container 100. FIG. Further, sufficient airtightness in the second airtight portion 62 can be easily realized.

In addition, the cover part includes an inner cylinder 22 that is attached to one end of the bottle body 10, and an outer cylinder 23 that has a larger diameter than the inner cylinder 22 and is disposed around the inner cylinder 22. (For example, a double cylinder). Therefore, by gripping the outer cylinder 23 having a diameter larger than that of the inner cylinder 22 and attaching or removing the cap part 20, a larger force (rotational torque or the like) can be easily applied to the cap part 20, The cap part 20 can be attached and detached with a lighter force.
When a user such as an elderly person with weak power wears the cap part 20, even if the cap part 20 cannot be worn enough to realize the airtightness by the packing 24, the airtightness by the annular rib 22a can be realized. If the degree is sufficient, the cap portion 20 can be easily attached.
Further, by gripping the outer cylinder 23 and attaching or removing the cap portion 20, it is possible to prevent direct force from acting on the inner cylinder 22. Deterioration and the like of the portion to which 22 is attached can be suppressed. In particular, when the cap part 20 is screwed into the bottle body 10 and attached, the radial force acting on the male screw part and the female screw part can be reduced, so that the threads 13c and 22b of the male screw part and the female screw part are worn. Can be suppressed.
In addition, the outer cylinder 23 and the bottle main body 10 can be decorated with a sense of unity, and the appearance of the bottle container 100 can be improved.
Further, since the outer cylinder 23 is farther from the opening 10d of the bottle body 10 than the inner cylinder 22, there is an advantage that the hand is not easily soiled when the outer cylinder 23 is gripped and the cap portion 20 is replaced.

Further, the inner peripheral surface of the cover portion that constitutes the second airtight portion 62 is the inner peripheral surface of the inner cylinder 22. That is, the annular rib 22 a is formed on the inner peripheral surface of the inner cylinder 22.
If the inner cylinder 22 and the outer cylinder 23 have the same thickness, the inner cylinder 22 having a smaller diameter can suppress the amount of displacement due to elastic deformation. For this reason, it is easy to implement | achieve the tight contact | adherence state of the annular rib 22a with respect to the outer peripheral surface of the bottle main body 10 more suitably.

  Moreover, the outer peripheral surface of the one end part of the bottle main body 10 constituting the second hermetic part 62 (for example, the outer peripheral surface of the third shoulder 12c) has a tapered shape that expands toward the other end side of the bottle main body 10. Can be formed. In this case, since the annular rib 22a is more closely attached to the outer peripheral surface of the bottle main body 10 as the depth of screwing between the male threaded portion of the mouth / neck portion 13 and the female threaded portion of the inner cylinder 22 increases, the second airtight More sufficient airtightness in the part 62 can be realized.

Further, the inner cylinder 22 of the cover portion has a female screw portion that is screwed into a male screw portion formed in the bottle body 10, and the cap portion 20 is screwed into the bottle when the female screw portion is screwed into the male screw portion. It is attached to the main body 10.
Therefore, the annular rib 22a can be airtightly adhered over the entire circumference of the outer peripheral surface of the bottle body 10 only by screwing the female screw portion and the male screw portion with a sufficient depth.

In addition, the inner peripheral surface of the inner cylinder 22 of the cover part is formed on the reference surface 22c formed in a cylindrical shape, the thread 22b of the female thread portion formed on the reference surface 22c, and the reference surface 22c, so that the second airtight. The projecting length of the rib (annular rib 22a) from the reference surface 22c is smaller than the projecting length of the screw thread 22b from the reference surface 22c.
Therefore, the cap portion 20 can be attached to the bottle body 10 while suppressing the annular rib 22a from interfering with the thread 13c of the mouth-and-neck portion 13.

In addition, the bottle body 10 has an opening 10d, an opening / necking part 13 to which the cap part 20 is attached, and the other end part (bottom part 15) side of the opening / necking part 13, and the opening / closing part. An intermediate portion (shoulder portion 12) having an outer peripheral surface that has the same diameter as the screw thread 13c of the male screw portion 13 or a larger diameter than the screw thread 13c, and is disposed on the other end side of the intermediate portion. And a trunk portion 11 having a cross-sectional area perpendicular to the axial center of the mouth-and-neck portion 13 is larger than that of the intermediate portion.
And the outer peripheral surface of the one end part of the bottle main body 10 which comprises the 2nd airtight part 62 is an outer peripheral surface of an intermediate part (for example, outer peripheral surface of the 3rd shoulder part 12c).
By adopting such a structure, in the configuration in which the cap portion 20 is mounted by being screwed to the mouth neck portion 13 of the bottle body 10, the second portion is closer to the bottom portion 15 side than the distal end surface 13 d of the mouth neck portion 13. It is possible to easily realize a structure that achieves airtightness by the airtight part 62. That is, even if the protruding length of the rib (annular rib 22a) is smaller than the protruding length of the thread 22b in order to suppress interference between the annular rib 22a and the thread 13c of the mouth and neck portion 13, the mouth and neck Airtightness by the second airtight part 62 can be easily realized on the bottom 15 side of the tip surface 13d of the part 13.

Further, from the state where the female screw portion is screwed to the male screw portion at the first screwing position, the female screw portion is screwed to the male screw portion at the second screwing position deeper than the first screwing position. In the meantime, the 2nd airtight part 62 is maintained in an airtight state.
That is, the annular rib 22a can be maintained in an airtight contact with the entire circumference of the outer peripheral surface of the bottle body 10 within a certain range in the axial direction of the male screw portion and the female screw portion.
For this reason, even when the cap part 20 is loosely attached to the bottle body 10, it is possible to achieve airtightness between the cap part 20 and the bottle body 10.

In addition, in the cap part 20, the part containing the obstruction | occlusion part 21, the inner cylinder 22, and the outer cylinder 23 is integrally formed by injection molding, for example. For this reason, the cap part 20 can be produced with higher dimensional accuracy than the bottle body 10 produced by blow molding.
In this case, the dimensional accuracy of the annular rib 22a can be improved by forming the annular rib 22a not on the bottle body 10 side but on the cap portion 20 side. Therefore, a desired airtight state between the annular rib 22a of the cap portion 20 and the outer peripheral surface of the bottle body 10 can be easily obtained.

[Second Embodiment]
Hereinafter, the second embodiment will be described with reference to FIG.
The bottle container 100 according to the present embodiment is different from the bottle container 100 according to the first embodiment in the points described below, and otherwise the bottle container 100 according to the first embodiment described above. It is configured in the same way.

  In the case of the present embodiment, the annular rib 22 a is not formed on the inner cylinder 22 that is the first cylindrical part of the cap part 20. Instead, an annular rib (second airtight portion) 23e is formed on the inner peripheral surface of the extending portion 23d of the outer cylinder 23 that is the second cylindrical portion. The longitudinal cross-sectional shape of the annular rib 23e is the same as that of the annular rib 22a.

  The mouth-and-neck portion 13 of the bottle body 10 is formed with a constant diameter, for example. That is, the diameter of the outer peripheral surface 13a of the mouth / neck portion 13 is, for example, constant. Further, the outer diameter of the second shoulder portion 12b (the diameter of the outer peripheral surface 12d) is set to be approximately equal to the inner diameter of the large diameter portion 23b of the outer cylinder 23, for example.

In the case of this embodiment, the 2nd airtight part 62 is comprised by the annular rib 23e and the perimeter of the outer peripheral surface 12d of the 2nd shoulder part 12b. That is, the inner peripheral surface of the cover part that constitutes the second airtight part 62 is the inner peripheral surface of the outer cylinder (second cylindrical part) 23. The second airtight portion 62 is configured at least in a part of the outer peripheral surface 12d of the second shoulder portion 12b in the axial direction of the mouth and neck portion 13. That is, a part or the whole of the outer peripheral surface 12 d of the second shoulder portion 12 b in the axial direction of the mouth and neck portion 13 constitutes the second airtight portion 62.
Moreover, the inner peripheral surface of the cover part which comprises the 2nd airtight part 62 is an inner peripheral surface of the extension part 23d. More specifically, an annular rib 23e formed in a part of the inner peripheral surface of the extending portion 23d in the axial direction of the mouth and neck portion 13 constitutes the second airtight portion 62.

  In the case of this embodiment, in a state where the cap portion 20 is attached to the bottle main body 10, the packing 24 is tightly adhered to the distal end surface 13 d of the mouth neck portion 13 of the bottle main body 10 in the first airtight portion 61. Even when not, the annular rib 23e tightly adheres over the entire circumference of a part of the outer peripheral surface of the second shoulder portion 12b of the bottle body 10 in the axial direction of the mouth-and-neck portion 13 in the second air-tight portion 62. To get.

  According to this embodiment, in addition to the same effects as those of the first embodiment, the following effects can be obtained.

The inner peripheral surface of the cover part constituting the second airtight part 62 is an inner peripheral surface (for example, an annular rib 23e) of the outer cylinder (second cylindrical part) 23.
If the inner cylinder 22 and the outer cylinder 23 have the same thickness, the outer cylinder 23 having a larger diameter can increase the amount of displacement due to elastic deformation. For this reason, the inner diameter (for example, the inner diameter of the annular rib 23e) of the inner peripheral surface of the cover part constituting the second airtight part 62 is the outer diameter of the outer peripheral surface of one end part of the bottle body 10 constituting the second airtight part 62 ( For example, when it is smaller than the outer diameter of the outer peripheral surface 12d of the second shoulder portion 12b, it is possible to realize a close contact state between the bottle body 10 and the cap portion 20 in the second airtight portion 62 with a lighter force, and The elastic close contact between the bottle main body 10 and the cap part 20 in the second airtight part 62 can be easily realized.
In particular, when the outer peripheral surface (for example, the outer peripheral surface 12d of the second shoulder 12b) of one end of the bottle main body 10 constituting the second hermetic portion 62 is formed in a tapered shape whose diameter increases toward the bottom 15 side, A tighter contact state between the bottle main body 10 and the cap part 20 in the second airtight part 62 can also be easily realized.

Further, the outer cylinder 23 has an extending part 23 d that extends to the other end side (lower side) of the bottle body 10 with respect to the inner cylinder 22, and an inner peripheral surface of a cover part that constitutes the second airtight part 62. Is an inner peripheral surface (for example, an annular rib 23e) of the extending portion 23d.
The upper end of the outer cylinder 23 is fixed (restrained) to the closing portion 21, while the lower end side, that is, the extending portion 23 d side is a free end that is not constrained. For this reason, the outer cylinder 23 can be elastically deformed more easily as the portion on the extending portion 23d side.
Therefore, the inner diameter (for example, the inner diameter of the annular rib 23e) of the cover portion constituting the second hermetic portion 62 is equal to the outer diameter (for example, the outer peripheral surface of one end of the bottle body 10 constituting the second hermetic portion 62). If the outer diameter of the outer peripheral surface 12d of the second shoulder 12b is smaller than the outer diameter of the second shoulder 12b, it is possible to realize a close contact state between the bottle body 10 and the cap 20 in the second airtight portion 62 with a lighter force, and The elastic close contact between the bottle main body 10 and the cap part 20 in the second airtight part 62 can be easily realized.

[Third Embodiment]
Hereinafter, the third embodiment will be described with reference to FIG.
The bottle container 100 according to the present embodiment is different from the bottle container 100 according to the first embodiment in the points described below, and otherwise the bottle container 100 according to the first embodiment described above. It is configured in the same way.

  In the case of the present embodiment, the annular rib 22 a is not formed on the inner cylinder 22 that is the first cylindrical part of the cap part 20. Instead, an annular rib 12e is formed on the outer peripheral surface of the third shoulder 12c of the shoulder 12 of the bottle body 10. The annular rib 12e protrudes outward in the radial direction from the outer peripheral surface of the third shoulder 12c of the shoulder 12 of the bottle body 10.

In the case of the present embodiment, the second hermetic portion 62 is configured by the annular rib 12e and the entire circumference of the inner circumferential surface of the inner cylinder 22.
That is, in the case of this embodiment, the 2nd airtight part 62 contains the cyclic | annular rib (annular rib 12e) formed in a part in the axial direction of the mouth neck part 13 among the outer peripheral surfaces of the one end part of the bottle main body 10. .
In addition, the inner peripheral surface of the cover part which comprises the 2nd airtight part 62 is a part in the axial direction of the mouth neck part 13 among the inner peripheral surfaces of the inner cylinder 22. FIG.

  As shown in FIG. 7B, in a state where the cap part 20 is attached to the bottle body 10, the packing 24 is not airtightly adhered to the distal end surface 13 d of the mouth-neck part 13 of the bottle body 10. Sometimes, the inner peripheral surface of the inner cylinder 22 tightly adheres over the entire circumference of the annular rib 12e formed on the outer peripheral surface of the third shoulder 12c of the shoulder 12 of the bottle body 10. The two airtight portions 62 can be in an airtight state.

  Also according to this embodiment, the same effects as those of the first embodiment can be obtained.

[Fourth Embodiment]
Hereinafter, the fourth embodiment will be described with reference to FIG.
The bottle container 100 according to the present embodiment is different from the bottle container 100 according to the second embodiment described above in the points described below, and otherwise the bottle container 100 according to the second embodiment described above. It is configured in the same way.

  In the case of this embodiment, the annular rib 23e is not formed in the outer cylinder 23 which is the second cylindrical part of the cap part 20. Instead, an annular rib 12f is formed on the outer peripheral surface 12d of the second shoulder 12b of the bottle body 10. The annular rib 12f protrudes outward in the radial direction from the outer peripheral surface 12d of the second shoulder 12b of the bottle body 10.

  In the state where the cap part 20 is attached to the bottle main body 10, even when the packing 24 is not tightly adhered to the distal end surface 13 d of the mouth neck part 13 of the bottle main body 10, The inner peripheral surface of the extending portion 23d of the outer cylinder 23 is in an airtight state over the entire circumference of the annular rib 12f formed on the outer peripheral surface 12d of the shoulder portion 12b, so that the second airtight portion 62 is in an airtight state. To get.

  Also according to the present embodiment, the same effects as those of the second embodiment can be obtained.

10 bottle body 10a outer layer 10b inner layer 10c adhesive layer 10d opening 11 trunk 12 shoulder 12a first shoulder 12b second shoulder 12c third shoulder (second airtight portion)
12d outer peripheral surface (second airtight part)
12e annular rib 12f annular rib (second airtight part)
13 mouth neck portion 13a outer peripheral surface 13c screw thread 13d tip surface (end surface on the opening side: first airtight portion)
13e annular rib 13f annular rib 14 inner region 15 bottom 16 pinch-off part 16a inflow slit 20 cap part 21 closing part 21a holding slit 21b guide hole 22 inner cylinder (first cylindrical part)
22a annular rib (second airtight part)
22b Thread 22c Reference surface 23 Outer cylinder (second cylindrical part)
23a Small diameter part 23b Large diameter part 23c Step part 23d Extension part 23e Annular rib (2nd airtight part)
24 Packing (first airtight part)
30 Pump part 30a Pump chamber 31 Pressed member 31a Holding part 31b Discharge port 31c Ball stopper part 32 Connecting member 32a Discharge valve seat 33 Piston 33a Expansion part 34 Pump cylinder 34a Spring receiving part 34b Suction valve seat 34c Pipe holding part 35 1 coil spring 36 suction valve member 36a spring receiving portion 37 second coil spring 38 ball-shaped discharge valve member 39 suction pipe 40 outer cap portion 40a opening 50 contents 61 first airtight portion 62 second airtight portion 100 bottle container

Claims (11)

A bottle body having an opening at one end;
A cap part that is detachably attached to the one end of the bottle body and seals the opening;
A bottle container comprising:
The bottle body is
An outer layer,
An inner layer that is releasably laminated to the outer layer and contains the contents;
A laminated bottle having
The cap part is
A pump unit that discharges the contents by a user's discharge operation;
A closing part for closing the opening together with the pump part;
A cover disposed around the one end of the bottle body;
Have
The bottle container
A first hermetic part configured to maintain an airtight state when the cap part is attached to the bottle body;
A second airtight portion configured to maintain an airtight state even when the cap portion is attached to the bottle body and the first airtight portion is not in an airtight state; Have
The first hermetic part is constituted by the one end part of the bottle body and a closing part of the cap part,
The second airtight portion is constituted by an outer peripheral surface of the one end portion of the bottle main body and an inner peripheral surface of the cover portion, and the bottle on the other end portion side of the bottle main body from the first airtight portion. A bottle container that maintains an airtightness between an inner region of the inner layer of the main body and the cap portion.   2. The bottle according to claim 1, wherein the second airtight portion includes an annular rib formed on one of the inner peripheral surface of the cover portion and the outer peripheral surface of the one end portion of the bottle body. container. The covering portion is
A first tubular portion attached to the one end of the bottle body;
A second cylindrical portion that is formed with a larger diameter than the first cylindrical portion and is disposed around the first cylindrical portion;
The bottle container according to claim 1 or 2, which is a multiple cylinder having   4. The bottle container according to claim 3, wherein the inner peripheral surface of the cover portion constituting the second airtight portion is an inner peripheral surface of the first cylindrical portion.   4. The bottle container according to claim 3, wherein the inner peripheral surface of the covering portion constituting the second airtight portion is an inner peripheral surface of the second cylindrical portion. The second cylindrical part has an extending part that extends to the other end side of the bottle body from the first cylindrical part,
The bottle container according to claim 5, wherein the inner peripheral surface of the cover portion constituting the second hermetic portion is an inner peripheral surface of the extension portion.   The said outer peripheral surface of the said one end part of the said bottle main body which comprises the said 2nd airtight part is formed in the taper shape which diameter-expands toward the said other end part side of the said bottle main body. The bottle container according to claim 1. The cover portion has a female screw portion that is screwed into a male screw portion formed on the outer peripheral surface of the one end portion of the bottle body,
The bottle container according to any one of claims 1 to 7, wherein the cap part is attached to the bottle body by the female screw part being screwed into the male screw part. The inner peripheral surface of the covering portion is
A reference surface formed in a cylindrical shape;
A thread of the female thread portion formed on the reference surface;
An annular rib formed on the reference surface and constituting the second hermetic part;
Including
The bottle container according to claim 8, wherein a protruding length of the rib from the reference surface is smaller than a protruding length of a thread of the female screw portion from the reference surface. The bottle body is
A mouth and neck portion having the opening and to which the cap portion is attached;
An intermediate portion that is arranged on the other end side of the mouth and neck portion and has an outer peripheral surface that is the same diameter as the screw thread of the male screw part or is formed larger in diameter than the screw thread,
A trunk portion that is disposed closer to the other end than the intermediate portion, and has a cross-sectional area that is perpendicular to the axis of the mouth-and-neck portion is larger than the intermediate portion;
With
The bottle container according to claim 9, wherein the outer peripheral surface of the one end portion of the bottle main body constituting the second airtight portion is an outer peripheral surface of the intermediate portion. A bottle container according to any one of claims 1 to 10,
The contents contained in the inner region of the inner layer;
Bottled containers with goods.

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