JP5024037B2 - Bottle stopper and single-open bottle using this - Google Patents

Description

  The present invention relates to a bottle stopper that is attached to the mouth of a bottle body so that the content liquid can be directly taken and a single-open bottle using the bottle stopper.

  Such bottle stoppers and single-open bottles are already known (for example, see Patent Document 1), have a bottle body with a bottle stopper attached to the bottle body, and a single-open lid hinged to the bottle stopper, If you hold the bottle body with one hand and open the one-sided lid, you can drink directly from the mouth. The drinking mouth is generally provided so as to be thinly raised near the front part of the upper end of the bottle stopper as disclosed in Patent Document 1 so that it can be easily taken directly, and many are inclined forward.

In particular, the bottle stopper described in Patent Document 1 has a double structure of a stopper body attached to the mouth of the vacuum double container and a stopper cover attached to a shoulder member attached to the shoulder of the vacuum double container. Due to the heat insulation effect, no dew condensation is formed on the outer surface of the stopper cover even if the beverage is ordered in a vacuum double container. In addition, however, the dead space formed by the double structure is large, and during cold storage, condensed water may accumulate on the inside, and mold may be seen. For this reason, the plug body and the plug cover can be separated, and even if condensed water accumulates, they can be disassembled and maintained.
JP 2006-160278 A

  However, although the mouth which stands up thinly as described in Patent Document 1 can suck and drink, if the bottle is sucked and swallowed, the bottle body cannot be sucked, so that the content liquid is not smoothly poured out. In order to obtain a smooth continuous dispensing state, it is necessary to attach a mouth to the drinking mouth so as to leave an intake gap on the rear side of the drinking mouth. For this reason, there is an inconvenience that is difficult to drink and requires familiarity. In addition, when drinking directly while moving, such as walking or walking, the content liquid may be poured out into a full drinking mouth and overflow, or inhalation may not be possible.

  Therefore, the present applicant has a stopper attached to the upper end of the bottle body, a base passage that leads to the bottle body through the stopper body, and a drinking mouth that allows direct drinking to the base passage through the spout. Has previously filed an improved structure in which both the area of the base passage and the mouth are made larger than the area of the spout (Japanese Patent Application No. 2007-7969). As a result, the content liquid flowing out from the bottle body is poured from the base passage with a large area through the spout with a small area to the drinking mouth having a larger area than the spout, but once the content liquid is poured into the base passage with a large area. Can be smoothly guided to the small outlet. In addition, it is poured from the spout into a drinking spout with a larger area, and the content of the spout received at the spout is in a state of mouthing partly in the circumferential direction using the large area. Therefore, it is possible to obtain a smooth dispensing state without interfering with the intake at the spout as well as at the spout, and as much as possible while checking the state and amount of liquid dispensed to the spout. Make it easy to drink on the basis of regulation. As countermeasures for dew condensation on the outer surface, an outer plug part to be mounted on the outer side of the mouth part of the bottle body, and inside the mouth part of the bottle body from this outer plug part to form the base passage, spout and drinking mouth The inner plug portion has an outer cylinder along the inner side of the mouth of the bottle body, and has a base passage, a spout and a drinking mouth, and is fitted into the outer cylinder to provide a heat insulating space between them. It can be handled as a combination with the formed inner cylinder, and is suitable for both heat insulation and cold insulation by the heat insulating space.

  On the other hand, the double structure of these plugs is complicated, and separate seal members are required for the upper and lower parts of the double structure, which increases the number of parts and man-hours, increases the product cost, and removes the seal member. All disassembly and cleaning takes time.

  Accordingly, the present applicant has developed a bottle stopper that has a simple structure as shown in FIG. 8, can prevent condensation on the surface, and does not require maintenance, and has been proposed separately (Japanese Patent Application No. 2007-13765). As shown in FIG. 8, this maintenance-free structure includes a plug body b having a drinking mouth a and a heat insulation space d placed on the inner side of the top plate c of the plug body b, and ultrasonic welding or the like. The cover plate e is attached in an airtight state, and even if condensation is formed on the upper surface of the cover plate e exposed in the heat insulating space d, it does not flow out and does not require maintenance. Only one sealing member g for sealing between the bottle body f is required.

  However, the presence of condensed water in the heat insulating space d is desired to be cared for by some users, and it is determined that it has never passed that it can be cared for.

  From such a point of view, an object of the present invention is to provide an inexpensive bottle stopper that has a small number of parts, is easy to disassemble and assemble, and can be used for cleaning all parts, and a single-open bottle using the same. .

  In order to solve the above problems, the bottle stopper of the present invention has a stopper that can be attached to and detached from the mouth of the bottle body, and the stopper is attached to the outside of the mouth of the bottle body. Insulated space forming part that has a mouth part that can be taken directly inside and attached to the inside of the outer part so that it can be attached and detached, and has an open part for cleaning around the mouth part inside the bottle Are connected to each other so that they can be attached to and detached from the outer plug part, the inner plug part, and the mutual boundary part of the bottle body. And a sealing member that seals at least the maintenance opening of the inner plug portion in this sealed state.

  In such a configuration, the number of parts of the plug body that can be attached to and detached from the mouth portion of the bottle body is as few as three of the outer plug portion, the inner plug portion, and the seal member, and the man-hours for disassembly and assembly are also reduced. In addition, the inner plug portion satisfies the combination in which the drinking port protrudes on the outer plug portion on the inner side of the outer plug portion, and the outer plug portion is attached to the mouth portion of the bottle body, and the seal is attached at the time of the attachment. The assembly and mounting to the mouth of the bottle body can be carried out at the same time as the member is positioned at the mutual boundary part of the outer stopper part, the inner stopper part, and the mouth part of the bottle body. In addition to sealing the mutual boundary part between the stopper part and the mouth part of the bottle body, it is possible to seal the opening part for maintenance of the heat insulating space forming part in the inner stopper part. Furthermore, since the inner plug part and the seal member are exposed at least by removing the outer plug part from the mouth part of the bottle body, the removable parts can be disassembled.

  The heat insulation space forming part may be formed in a double wall formed in the axial direction around the drinking mouth and having an opening between the outer periphery.

  In such a configuration, the heat insulation space forming portion is composed of a double wall that is overlapped in the axial direction around the drinking mouth, and the outer periphery between them forms an opening for cleaning, and the outer plug portion and the mouth portion of the bottle body It is located in the immediate vicinity of the sealing member that seals between the two, so that the opening portion for maintenance is sealed by sharing the sealing member that seals the mutual boundary portion of the outer plug portion, the inner plug portion, and the mouth of the bottle body. Will be convenient.

  The sealing member can be attached so as to be attachable to and detachable from the maintenance opening portion of the heat insulation space forming portion and seal the maintenance opening portion.

  In such a configuration, the seal member is mounted so as to be detachable from the maintenance opening portion of the heat insulating space forming portion of the inner plug portion, so that the seal of the maintenance opening portion is guaranteed, and the seal member The sealing member can be attached to the outer plug portion, the inner plug portion, and the mouth portion of the bottle body by combining the inner plug portion and the outer plug portion while enabling the maintenance through the opening for cleaning the heat insulating space forming portion by removal. It is uniquely positioned at the position where the mutual boundary is sealed, and no artificial positioning is required.

  The inner plug portion is seated from above on the mouth of the bottle body via the seal member, and the outer plug portion presses the inner plug portion into the seated state via the seal member when mounted on the bottle body. Can do.

  In such a configuration, the outer plug portion is pressed to the seated state via the seal member when mounted on the bottle body while the inner plug portion is seated from above on the mouth portion of the bottle body via the seal member. Therefore, the inner plug part is a simple combination with only a seating that does not fit with the mouth part of the bottle body, and the heat insulating space forming part of the inner stopper part is the core material between the mouth part of the bottle body and the outer stopper part. As a result, the outer plug portion, the inner plug portion, and the mouth of the bottle body are more reliably sealed, and the assembled and mounted state is stabilized.

  The heat-insulating space forming part is an air intake from the outside of the outer plug part to the inside of the bottle body between the drinking mouth and the sealing part of the outer plug part, the inner plug part, the bottle body, and the opening part for cleaning. The seal member has at least an external opening of the intake passage, and is closed by a part of the opening / closing lid when the opening / closing lid for the drinking mouth provided in the outer plug portion is closed. Can be.

  In such a configuration, the outside air can be naturally aspirated into the bottle through the intake passage that is away from the drinking mouth during direct drinking, and the intake passage is between the outer plug portion, the inner plug portion, the bottle body, and Since it is located on the inner side of the seal area of the open part for maintenance, those seals are not damaged and the seal structure is not complicated. In addition, since at least the upper end portion of the intake passage is formed with elasticity of the seal member, the opening / closing lid is closed at the same time as the opening / closing lid is closed without difficulty.

  The single-open bottle of the present invention has a bottle body by attaching the bottle stopper of any of the above cases to the mouth of the bottle body, and the hinge that is closer to the rear than the drinking mouth that is closer to the front of the bottle stopper. A single-open bottle characterized in that the opening / closing lid is supported by the connecting portion so that the opening / closing lid can be opened separately, and the drinking mouth is closed by a seal member in a closed state.

  In such a configuration, since the drinking mouth of the bottle stopper attached to the mouth portion of the bottle body is located closer to the front portion, if the bottle body is gripped so as to face the front portion, the drinking mouth will become the body of the bottle body. Because it is located closer to the front side than the part, that is, to the mouth side of itself, the bottle body does not get in the way to drink directly. In addition, when the openable lid is opened, it rises to the hinge connecting part near the back of the bottle stopper, so it does not interfere with direct drinking from the drinking mouth near the front, and the hand holding the bottle from the side. The thumb of the bottle body is located at the front part where the opening and closing lid that opens one side is opened, and at the same time as the opening operation is performed, the bottle body can be directly swallowed with the forward tilt of the bottle body or as it is, Even when tilted forward, the top surface of the outer plug portion has a heat insulating space formed by the heat insulating space forming portion being closed by a sealing member, so that condensation due to the cold beverage does not occur. Furthermore, even when condensed water is generated in the heat insulation space forming portion, all parts of the bottle stopper can be cleaned by the above decomposition.

  Further features of the present invention will become apparent from the following specific description and drawings. Each feature of the present invention can be used alone or in combination with various combinations.

  According to the bottle stopper of the present invention, the number of parts can be reduced to three, and it can be provided at low cost, and it can be easily assembled and disassembled with few man-hours for disassembling and assembling. The heat insulation space forming part that prevents condensation is also opened, so that even if condensation water is generated in the heat insulation space forming part, all parts including that part can be cleaned easily and thoroughly. Can be kept clean for a long time. In addition, a combination in which the inner plug portion is positioned inside the outer plug portion so that the drinking port protrudes above the outer plug portion, and the outer plug portion is attached to the mouth portion of the bottle body, in which case the sealing member is the outer plug In addition to assembling and mounting to the mouth of the bottle body, the required seal is satisfied and the product can be used safely without any defective seals. Can do. Furthermore, if the outer plug part is removed from the mouth part of the bottle body, the inner plug part and the seal member are at least exposed, so that the removable parts can be easily disassembled.

  The heat insulation space forming part is a double wall in the axial direction around the drinking mouth, and the outer periphery is an open part for cleaning, close to the seal member that seals between the outer plug part and the mouth part of the bottle body A particularly large cross-sectional area is required to seal the open part for maintenance by using a single sealing member that is located and seals the mutual boundary part of the outer stopper part, the inner stopper part, and the mouth part of the bottle body. It does not increase the cost including the material cost and molding cost of the seal member.

  The seal member is attached to the opening part for the maintenance of the heat insulation space forming part of the inner plug part, and the seal opening of the care opening part is ensured while the seal member is removed to pass through the maintenance opening part of the heat insulation space forming part. It is easy to clean, and the combination of the inner plug part and the outer plug part ensures that the sealing member is accurately positioned at the required sealing position between the outer plug part, the inner plug part, and the mouth of the bottle body without any special effort. Can be sealed.

  In combination with the outer plug part, the inner plug part is the core material between the mouth part of the bottle body just seated and the outer plug part attached to it through the seal member. In addition to being firmly clamped, the sealing of the outer plug part, the inner plug part, and the mutual boundary part of the mouth part of the bottle body can be achieved more reliably. Assembling and mounting are stable.

  When drinking directly, outside air is naturally aspirated into the bottle through the intake passage that is out of the mouth, allowing the beverage to flow smoothly without any special inspiration adjustments, such as when inhaling in the mouth. Since it is inside the required seal area and does not damage or complicate the seal, it does not cause malfunction or increase in cost. Further, at least the upper end portion of the intake passage is made of an elastic seal member, and at the same time as the opening / closing lid is closed, it is reliably closed without difficulty by a part thereof.

  According to the single-open bottle of the present invention, if the bottle body is held so as to face the front side of the bottle body, the bottle body obstructs the direct drinking from the drinking mouth, and the single-open lid is close to the rear. Since the hinge connecting part is opened toward the rear side and does not disturb the direct drinking from the drinking port near the front part, it becomes easy to drink directly. In addition, when the bottle body is gripped from the side, the thumb of the hand is positioned at the front of the bottle body, and the opening operation on the front free end side of the one-side opening / closing lid can be easily performed. As it is, it is easy to drink directly with almost one movement in parallel or in parallel with the drinking mouth as it is, and the top surface is insulated by forming the heat insulation space and there is no condensation due to cold drinks, so you may be worried when leaning forward There is no problem of getting wet. Furthermore, even when condensed water is generated in the heat insulating space forming portion, all parts of the bottle stopper can be cleaned by the above decomposition including other portions, and can be kept clean for a long time.

  Hereinafter, the bottle stopper of the present invention and the single-open bottle using the same will be described in detail based on the embodiment shown in FIGS. However, the following description is a specific example of the present invention, and does not limit the content of the claims.

  As shown in the example of FIG. 1 and the example of FIG. 6, the single-open bottle of the present embodiment includes a vacuum double container 1 as a bottle body having a vacuum heat insulating space 2 between an inner wall and an outer wall made of stainless steel. Made of synthetic resin, which is a bottle stopper that has a female screw 4 that is screwed into a male screw 3 formed on the outer wall of the mouth 1a of the vacuum double container 1 and is attached to the vacuum double container 1 via a seal packing 16. A bottle body 20 is formed by the stopper body 5. The bottle main body 20 covers the upper end portion of the bottle main body 20 on one side of the upper end portion formed by the plug body 5, specifically, on the back surface, centering on the hinge connecting portion 10 by the rotating shaft 6. A single-open lid 7 that opens and closes the drinking port 14 for direct drinking is provided. However, the bottle main body 20 can be freely designed such as the presence or absence of heat insulation, metal, non-metal, and the structure of the drinking mouth 14, and the specific structure is not particularly limited. Further, the material of the single lid 7 is not particularly limited. Between the single-opening lid 7 and the bottle body 20, there is provided a lock mechanism 8 that locks the single-opening lid 7 in a closed state and releases the lock.

  The vacuum double container 1 in the illustrated example has a barrel portion 1b that is slim enough to be held by one hand, and the upper portion of the barrel portion 1b is formed to have substantially the same diameter as the plug body 5 attached to the mouth portion 1a. Has been. Holding the body 1b and the plug 5 of the vacuum double container 1 with one hand, the operation of the lock mechanism 8 with the finger of the hand held by one hand, the opening operation of the single opening lid 7 accompanying this, The shape is such that a direct drinking operation by the drinking mouth 14 is easily performed after the lid 7 is opened. However, the single-opening lid 7 in the illustrated example is urged in the opening direction by a vine type spring 131 mounted around the rotation shaft 6. Therefore, the locking mechanism 8 of the single-open lid 7 is locked to the closed position against the bias of the vine spring 131. When this lock is released, the single-open lid 7 is biased by the vine spring 131. Will be opened automatically. Such urging in the opening direction is replaced by an elastic body provided around the drinking mouth 14 of the bottle body 20 or a seal packing 26 having elasticity for sealing the drinking mouth 14 provided on the one-sided lid 7. You can also. The seal packing 26 is mounted so that the boss portion 26a can be press-fitted into and removed from the cylindrical wall 7b formed on the back surface of the top plate 7a of the opening / closing lid 7, and the seal packing 26 and the opening / closing lid 7 can be washed in a circle. I have to.

  Here, as shown in the example of FIG. 1 and the example of FIG. 6, the stopper body 5 in this embodiment is attached to the mouth portion 1 a of the bottle body 1 so as to be detachable by the male screw 3, the female screw 4, and the like. It has a plug 5. However, this attachment / detachment method can employ various methods such as a partial screw structure, or an engagement structure that engages and disengages with or without elasticity. The plug body 5 includes an outer plug portion 21 that is a portion that is attached to the outside of the mouth portion 1 a of the bottle body 1 with the screw structure or the like, and a drinking mouth that can be directly taken inside the outer plug portion 21. 14, the bottle body 1 is detachably connected to the bottle body 1 through a heat insulating space forming portion 22 having a care opening portion 22a around the drinking mouth 14, and the drinking mouth 14 is an outer plug portion. 21 is combined with the outer plug portion 21, the inner plug portion 23, and the mutual boundary portion of the bottle body 1 so as to be detachable from both of them. And the seal packing 16 as a seal member for sealing at least the maintenance opening 22a of the inner plug portion 23 in this sealed state.

  Accordingly, the bottle stopper 5 of the example of FIG. 1 and the bottle stopper 5 of the example of FIG. 6 can be attached to and detached from the mouth 1a of the bottle body 1 as shown in an exploded view in FIGS. The number of parts of the plug body 5 to be mounted is as small as three of the outer plug portion 21, the inner plug portion 23, and the seal packing 16, and naturally the man-hours for disassembly and assembly are similarly reduced. Therefore, the heat insulating space forming part 22 that prevents condensation on the outer surface of the bottle stopper 5 formed in the inner stopper part 23 is also combined, so that the heat insulating part 22 can be assembled and disassembled easily. Even if dew condensation water is generated in the space forming part 22, all parts including the part can be cleaned easily and sufficiently, and can be kept clean for a long time. Moreover, the heat insulation effect by the heat insulation space formation part 22 improves the cold insulation of the bottle body 1, and the heat insulation effect.

  Further, the inner plug portion 23 satisfies the combination in which the drinking mouth 14 is located on the inner side of the outer plug portion 21 so as to protrude on the outer plug portion 21 as shown in FIG. 1, FIG. 3, and FIG. The outer plug portion 21 is attached to the mouth portion 1a of the bottle body 1, and the seal packing 16 is attached to the mutual boundary portion of the outer plug portion 21, the inner plug portion 23, and the mouth portion 1a of the bottle body 1 at the time of attachment, for example, FIG. 6, it is possible to assemble and attach the bottle body 1 to the mouth portion 1a, and at the same time, the outer stopper portion 21, the inner stopper portion 23, and the mouth portion of the bottle body 1 can be mounted. In addition to sealing the mutual boundary portion of 1a, the opening portion 22a for maintenance of the heat insulating space forming portion 22 provided in the inner plug portion 23 can be sealed. Further, by removing the outer plug portion 21 from the mouth portion 1a of the bottle body 1, the inner plug portion 21 and the seal packing 16 are at least exposed, so that the removable parts can be disassembled. Accordingly, the combination in which the inner plug portion 23 is positioned inside the outer plug portion 21 so that the drinking port 14 protrudes on the outer plug portion 21 and the outer plug portion 21 are attached to the mouth portion 1a of the bottle body 1, At that time, the seal packing 16 is only required to be positioned at the mutual boundary between the outer plug portion 21, the inner plug portion 23, and the mouth portion 1a of the bottle body 1, and in addition to being assembled and mounted on the mouth portion 1a of the bottle body 1 Satisfactory seals can be used and it can be used safely with no seal failure. Further, when the outer plug portion 21 is removed from the mouth portion 1a of the bottle body 1, the inner plug portion 23 and the seal packing 16 are at least exposed and can be easily detached from each other.

  Further, the heat insulating space forming portion 22 is common to the examples shown in FIGS. 1 and 2 and the examples shown in FIGS. 6 and 7, and FIG. 4 is a partial cross-sectional view of the drinking mouth 14 of the example shown in FIGS. 1 and 2. As shown as a representative, double walls 22b and 22c formed in the axial direction around the drinking mouth 14 and having a cleaning opening 22a between the outer periphery are formed. Thus, if the heat insulation space formation part 22 consists of the double walls 22b and 22c which overlapped in the axial direction around the drinking mouth 14, it will be easily integrally formed with the drinking mouth 14, and these double walls 22b and 22c As shown in FIG. 1, the maintenance opening 22a is formed between the outer plug 21 and the mouth 1a of the bottle body 1 as shown in FIGS. Since it is located in the immediate vicinity of the seal packing 16 that seals the gap, the seal plug 16 that seals the mutual boundary between the outer plug portion 21, the inner plug portion 23, and the mouth portion 1 a of the bottle body 1 is shared and opened for maintenance. It is convenient to seal 22a. That is, the heat insulation space forming part 22 is the double walls 22b and 22c in the axial direction around the drinking mouth 14, and the outer periphery is an open part 22a for cleaning, and the outer plug part 21 and the mouth part of the bottle body Opening part 22a for maintenance by sharing one seal packing 16 that is located in the immediate vicinity of the sealing member that seals between and seals the outer plug part, the inner plug part, and the mutual boundary part of the mouth part 1a of the bottle body 1 In particular, a large cross-sectional area is not required to seal the seal, and the material cost and molding cost of the seal packing 16 are not increased.

  Moreover, this seal packing 16 is common to the examples shown in FIGS. 1 and 2 and the examples shown in FIGS. 6 and 7, and is a partial cross-sectional view of the drinking mouth 14 of the example shown in FIGS. As representatively shown, the heat insulation space forming portion 22 is detachably attached to the care opening portion 22 so as to seal the care opening portion 22a. As a result, the seal packing 16 is mounted so as to be detachable from the care opening portion 22a of the heat insulation space forming portion 22 of the inner plug portion 23, so that the seal of the care opening portion 22 is guaranteed and the seal The inside plug portion 23 and the outer plug are made possible through the maintenance opening portion 22a of the heat insulation space forming portion 22 that is opened by the removal of the packing 16 shown in FIGS. The seal packing 16 is uniquely positioned by the combination with the portion 21 so as to seal the mutual plug portion of the outer plug portion 21, the inner plug portion, and the mouth portion 1a of the bottle body 1, so that artificial positioning is unnecessary. Become. That is, the seal packing 16 is attached to the care opening portion 22a of the heat insulation space forming portion 22 of the inner plug portion 23, and the heat insulation space forming portion is secured by removing the seal packing 16 while ensuring the seal of the care opening portion 22a. 22 can be cleaned and wiped off through the opening 22a for cleaning. The combination of the inner plug portion 23 and the outer plug portion 21 makes the seal packing 16 the outer plug portion 21, the inner plug portion 23, and the bottle body 1. It is possible to accurately position and seal the required sealing position between the mouth portions 1a without any special effort.

  Further, the inner stopper portion 21 is commonly seated on the mouth portion 1a of the bottle body 1 via the seal packing 16 from the upper side in common with the examples shown in FIGS. 1 and 2 and the examples shown in FIGS. The stopper 21 presses the inner stopper 23 into the seated state through the packing 16 when the stopper 21 is attached to the bottle body 1. In this way, with the inner plug portion 23 seated from above on the mouth portion 1 a of the bottle body 1 via the seal packing 16, the outer plug portion 21 is attached to the bottle main body 1 through the seal packing 16 and the seating is performed. By being pressed to the state, the inner plug portion 23 is a simple combination of only sitting without fitting with the mouth portion 1a of the bottle body 1, and between the mouth portion 1a of the bottle body 1 and the outer stopper portion 21. Since the heat insulating space forming part 22 of the inner plug part 23 is firmly sandwiched as a core material, the sealing of the mutual boundary part of the outer plug part 21, the inner plug part 23, and the mouth part 1a of the bottle body 1 is more reliable. To be achieved. Therefore, the combination of the inner plug portion 23 with the outer plug portion 21, between the mouth portion 1 a of the bottle body 1 just seated through the seal packing 16 and the outer plug portion 21 attached thereto, In addition to the space forming portion 22 being firmly sandwiched as a core material, the sealing of the outer plug portion 21, the inner plug portion 23, and the mutual boundary portion of the mouth portion 1a of the bottle body 1 is more reliably achieved. . Assembling and mounting are stable.

  In addition, the seal guarantee when seated on the mouth portion 1a of the inner plug portion 23 does not require the fitting of the inner plug portion 23 to the inner periphery of the mouth portion 1a, and the bottle does not block the mouth portion 1a by fitting. The actual capacity of the body 1 can be increased.

  More specifically, one of the double walls 22b and 22c has a smaller diameter than the other, and the groove 16a of the seal packing 16 on the outer periphery of the upper wall 22b, for example, has a larger diameter and is elastically covered from the outside. The mounting portion 16b is sandwiched between the double walls 22b and 22c while securing a sufficient sealing pressure as a portion to be sandwiched between the outer plug portion 21 and the mouth portion 1a of the bottle body 1 with the wall 22b as a core material. Preventing damage. For example, the lower wall 22c having a small diameter simply seals an inward seal lip 16c with an L-shaped cross section of the seal packing 16 on the outer periphery from the side and outer surfaces, specifically from the lower surface. Therefore, the cross-sectional shape of the seal packing 16 is simplified to improve the moldability. The seal packing 16 is also integrally formed with an auxiliary lip 16e extending from the side surface of the seal lip to the outer periphery and having a gap 16d with the mounting portion 16b. By interposing the gap 16d and the auxiliary lip 16e in the sandwiched portion between the mouth 1a, the flexibility using the gap 16d of the auxiliary lip 16e can be achieved without having a complicated cross section such as a hollow portion. It is applied to the sandwiching portion to achieve a more reliable and reasonable seal that absorbs molding errors and assembly errors between the outer plug portion and the mouth portion 1a of the bottle body 1.

  Moreover, the upper end of the mouth portion 1a of the bottle body 1 facing the auxiliary lip 16e and the mounting portion 16b is joined by TLG welding or the like between the mouth portions of the stainless steel inner cylinder and the outer cylinder constituting the vacuum double container. It is a double wall end portion, promotes easy biting into the lower surface of the auxiliary lip 16e and the mounting portion 16b by the pinching and enhances the sealing performance, and the portion facing the mounting portion 16b of the outer plug portion 21 is a saddle type While receiving the outer periphery of the mounting portion 16b as the surface 21a, it is pressure-bonded from above at the surface area exceeding the double wall width of the mouth portion 1a inside and outside, and the bottle body by the pressure bonding as well as the seal with the inner plug portion 23 The sealing performance between the inner plug portion 23 and the mouth portion 1a with biting into the auxiliary lip 16e and the mounting portion 16b of the mouth portion 1a can be enhanced. Further, the mounting portion 16b is mounted so as to leave a small gap 16f on the outer periphery of the upper wall 22b, and by making a flexible deformation portion, an initial fitting with the inner periphery of the bowl surface 21a of the outer plug portion 21 is achieved. The degree of adhesion to the hook surface 21a is increased by the expansion of the outer shape of the mounting portion 16b when the mounting portion 16b is pressure-bonded from above with the hook surface 21a while reducing or providing a gap. The sealing property between the inner plug portion 23 can be further enhanced. Further, since the auxiliary lip 16e suppresses the deformation of the L-shaped lip 16c escaping outward from the outer periphery of the lower wall 22c, the exchange of the internal air due to convection with the external air is impaired by a simple contact relationship. A degree of sealing failure can be avoided. In the case where it is damaged due to a decrease in the internal pressure during cold insulation, a structure that ensures a contact state and a fitted state that overcomes it may be used. In the example shown in FIG. 4, the L-shaped lip 16c is provided with a thin wall portion 16g between the lip piece 16c1 and the auxiliary lip 16e forming portion pressed against the lower wall 22c to weaken the elasticity. The device is devised so as to improve the sealing performance by making a close contact with the lower surface of the wall 22c so that a gap is not formed between the opposing surfaces.

  Further, in common with the examples shown in FIGS. 1 and 2 and the examples shown in FIGS. 6 and 7, the seal packing is also provided between the heat insulating space forming part 22 and the top plate 21 b of the outer plug part 21. The sealed space 31 is formed in a sealed state by 16, and a double heat insulating structure is formed by the sealed space 31 and the heat insulating space forming portion 22, and the top plate 21c of the outer plug portion 21 by the cold beverage is formed. In addition to more reliably preventing dew condensation on the outer surface, the effect of cold insulation and heat insulation is further enhanced. In order to prevent condensation, cool, and keep warm, it is preferable to provide the heat insulating space forming portion 22 and the sealed space 31 in as many surface areas as possible except the drinking mouth 14 without falling out. For this reason, in the illustrated example, in order to make it easy to directly drink the upright type drinking mouth 14 like molding, the heat insulation space forming part 22 is brought to the front part and the heat insulation space is not formed on the front part side. The heat insulation space can be made continuous in a donut shape around the drinking mouth 14.

  A single-open bottle 20 in which the bottle stopper 20 as described above is attached to the mouth portion 1a of the bottle body 1 as in the example of FIG. 1 and FIG. 2 is the bottle stopper 5 attached to the mouth portion 1a of the bottle body 1. Since the drinking mouth 14 of the bottle body 1 is positioned closer to the front, if the bottle body 1 is gripped so as to face the front, the drinking mouth 14 is on the front side of the body 1b of the bottle body 1, that is, its own mouth. Since it is located close to the side, the bottle body 1 does not get in the way to drink directly. Therefore, it becomes easy to drink directly without securing the capacity | capacitance according to a use and being influenced by the diameter of the bottle body 1. FIG. Further, when the one-side opening / closing lid 7 is opened, it rises to the hinge connecting part 10 side near the rear part of the bottle stopper 5, so that direct drinking from the drinking mouth 14 near the front part is not disturbed, and the bottle body 1 is moved sideways. The thumb of the hand gripped from the side is located at the front part of the bottle body 1 which has the lock mechanism 8 and opens and closes the opening / closing lid 7, and at the same time the bottle body 1 is tilted forward. Along with or as it is, the drinking mouth 14 can be directly brought close to its own mouth, and even if it is tilted forward, the top surface of the outer plug portion 21 is insulated from the heat insulating space forming portion 22 and the sealed space 31 so that it is kept cool. Condensation due to beverages does not occur, and the effect of cooling and keeping warm is high. Furthermore, even when condensed water is generated in the heat insulating space forming portion 22, all parts of the bottle stopper 5 can be cleaned and wiped off by the above-described decomposition, and can be kept clean for a long time.

  As shown in FIGS. 1 and 6, the lock mechanism 8 engages the lock member 32 having a hook portion that engages with the open / close lid 7 and is locked in a closed state, and the lock member 32 engages with the open / close lid 7. A lock release piece 33 for releasing and releasing the lock to the closed position is pivotally supported on the same axis 34, and the lock member 32 is brought into the lock position by the spring 35 which is operated between the outer plug portion 21 and the lock member 32. When the piece 33 is stabilized at the unlocking operation start position and the open / close lid 7 is closed, the locking member 32 resists the spring 35 and uses the play provided between the unlocking piece 33 and the unlocking operation once. It retracts so as to be pushed away to the side of the piece 33, and after the opening / closing lid 7 is received in the hook portion, it is returned by the urging force of the spring 35 and is engaged with the opening / closing lid 7 to be automatically locked. On the other hand, when the lock release piece 33 is pushed, the lock member 32 is retracted against the spring 35 and is disengaged from the open / close lid 7 to release the lock. To be opened. The unlocking piece 33 can be moved on the lock member 32 to a position where the unlocking operation is disturbed and unobstructed between the outer plug portion 21 and automatically returns to the position where the unlocking operation is disturbed. In this way, an inadvertent unlocking operation is prevented.

  In the examples shown in FIGS. 6 and 7, the heat insulation space forming part 22 is further provided with a drinking mouth 14, an outer stopper part 21, an inner stopper part 23, a bottle body 1, and an opening part for maintenance. 22a has a suction path 41 from the outside of the outer plug portion 23 into the bottle body 1, and the seal packing 16 has at least an external opening 41a of the suction path 41. When the opening / closing lid 7 with respect to the drinking mouth 14 provided in the portion 21 is closed, the closing portion 42 is formed integrally with a part of the opening / closing lid 7, specifically, a part of the opening / closing lid 7 in a protruding shape. It is designed to be closed. As a result, the outside air can be naturally sucked into the bottle body 1 through the intake passage 41 at a position away from the drinking mouth 14 during direct drinking, and the intake passage 41 has the outer plug portion 21, the inner plug portion 23, and the bottle body. Since they are located on the inner side of the seal area of the one and the opening part 22a for care, the seals are not damaged or the seal structure is not complicated. Further, at least the external opening 41a of the intake passage 41 is formed by the seal packing 16 having elasticity, so that the opening / closing lid 7 is closed at the same time by the closing portion 42 as a part thereof without difficulty. As a result, since the outside air is naturally aspirated into the bottle body 1 through the intake passage 41 at a position away from the mouth 14 during direct drinking, the beverage can be smoothly smoothed without special inhalation adjustment as during inhalation in the mouth 14. Since the intake passage 41 is inside the necessary seal area and does not damage the seal or complicate the seal structure, it does not cause malfunction or increase in cost. In addition, at least the external opening 41a of the intake passage 41 is made of elastic seal packing 16, and at the same time as the opening / closing lid 7 is closed, it is reliably closed by the closing portion 42 which is a part thereof.

  In the illustrated example, the intake passage 41 is formed integrally with the double walls 22b and 22c, opens into the bottle body 1 through the wall 22c, and protrudes through the through hole 21c on the outer plug portion 21. The projecting portion from the wall 22b of the intake passage 41 is covered with a cylindrical cover 16h formed integrally with the seal packing 16 from above to form the external opening 41a. A portion of the cylindrical cover 16h that passes through the through hole 21c of the top plate 21b of the outer plug portion 21 has a settling stop rib 16i received from below at the opening edge of the through hole 21c, and the external opening 41a is opened and closed. A downward escape when the lid 7 is closed by the closing portion 42 is prevented, and a seal pressure can be secured even if there is a gap due to molding failure or assembly failure with the upper end of the intake passage 41.

  The present invention can be practically used for bottle stoppers and single-open bottles, has a heat insulating structure that prevents condensation on the outer surface of the stopper, has a small number of parts, is inexpensive, and can be easily assembled, disassembled, and maintained. .

It is sectional drawing of the principal part which shows one example of the bottle stopper of embodiment of this invention, and the single sided bottle using the same. It is an exploded sectional view of the bottle stopper. It is a perspective view of the state which opened the opening-and-closing lid | cover of the bottle stopper. It is the perspective view which looked at the heat insulation space formation part of the inside stopper part of the bottle stopper. It is a disassembled perspective view of an inside stopper part and a seal packing. It is sectional drawing of the principal part which shows another example of the bottle stopper of embodiment of this invention, and the single bottle using it. It is an exploded sectional view of the bottle stopper. It is sectional drawing of the principal part which shows the example of the conventional bottle stopper and the single opening bottle using the same.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bottle body 1a Mouth part 5 Plug body 21 Outer plug part 23 Middle plug part 7 Single opening lid 8 Lock mechanism 16 Seal packing 10 Hinge connection part 14 Drinking mouth 20 Bottle main body 22 Heat insulation space formation part 22a Opening part 22b for care, 22c Double wall 41 Intake passage 41a External opening 131 Spring

Claims (6)

  There is a plug body that can be attached to and detached from the mouth of the bottle body, and the plug body has an outer plug part that is attached to the outside of the mouth part of the bottle body and an inner side of the outer plug part. It has a mouthpiece that can be directly taken and is attached so that it can be attached and detached. The inside of the bottle faces through a heat-insulating space forming part with an opening for cleaning around the mouthpiece, and the mouthpiece is on the outer plug part. The protruding inner plug portion and the outer plug portion, the inner plug portion, and the mutual boundary portion of the bottle main body are combined so as to be detachable from each other and sealed together, and at least in this sealed state, the inner plug portion A bottle stopper comprising: a sealing member that seals the opening for cleaning.   The bottle cap according to claim 1, wherein the heat insulating space forming portion is formed in a double wall formed in an axial direction around a drinking mouth and having an opening between the outer periphery.   The bottle stopper according to any one of claims 1 and 2, wherein the seal member is attached so as to be detachable from a maintenance opening portion of the heat insulation space forming portion and seals the maintenance opening portion.   The inner plug portion is seated from above on the mouth portion of the bottle body via the seal member, and the outer plug portion presses the inner plug portion into the seated state via the seal member when mounted on the bottle body. The bottle stopper described.   The heat-insulating space forming part is an air intake from the outside of the outer plug part to the inside of the bottle body between the drinking mouth and the sealing part of the outer plug part, the inner plug part, the bottle body, and the opening part for cleaning. The seal member has at least an external opening of the intake passage, and is closed by a part of the opening / closing lid when the opening / closing lid for the drinking mouth provided in the outer plug portion is closed. The bottle stopper according to any one of claims 1 to 4. Attach the bottle stopper according to any one of claims 1 to 5 to the mouth part of the bottle body to form a bottle body, and at the hinge connecting part that is closer to the rear with respect to the drinking mouth that is closer to the front part of the bottle stopper A single-open bottle characterized in that the open / close lid is supported so that it can be opened one by one, and the drinking mouth is closed with a sealing member in a closed state.

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