JP4470224B2 - Inner cap for beverage containers - Google Patents

Description

  The present invention relates to an inner plug of various beverage containers such as a portable thermos bottle, a water bottle, and a sports drink container, and in particular, a beverage container capable of directly drinking a beverage in a container body by opening the lid with one touch. It is about the stopper.

  As a prior art of the middle stopper of a beverage container, a cylindrical stopper attached to the upper opening of the container main body, and a hinge that can be opened / closed by a hinge and opened to the top plate of the stopper. A lid that liquid-tightly covers the outlet, and a slide-type locking means that holds the lid in a fully closed state, and a lip is attached to the upper peripheral wall of the stopper that has released the lid, It allows you to drink directly. In this liquid container stopper, the inner stopper opens about 180 degrees from the closed state around the support shaft, and when pouring liquid by tilting the container body, the inner stopper is rotated in the closing direction by the urging force of the torsion spring. The movement is restricted and the open state is maintained (for example, Patent Document 1).

  In addition, a cylindrical cap body that can be screwed into a screw portion formed on the outer periphery of the spout of the beverage container, a drinking mouth that protrudes from the top of the cap body, and formed outside the drinking mouth A pedestal, an open / close lid that is connected to the pedestal via a hinge and covers the drinking mouth, engages the open / close lid and the cap body, and is attached in a direction in which the open / close lid is closed or opened. A beverage container cap provided with an elastic member is also known (for example, Patent Document 2).

Further, in the cap body, an upper lid is disposed so as to be freely opened and closed via a hinge, and the upper lid is closed by a locking mechanism formed on the cap body and the upper lid. A cap is also known in which a rubber-like elastic body is mounted in the vicinity of one of the hinges, and the rubber-like elastic body is elastically deformed between the cap body and the upper lid when the upper lid is closed (for example, a patent). Reference 3).
JP 2001-149236 A JP 2000-85820 A JP-A-7-61456

In the case of using the torsion spring, there is a risk of rusting by washing with water .

  The problem to be solved is that the beverage in the container body can be satisfactorily drinked in an easy posture regardless of the drinker, drinking place, and beverage temperature, and it is hygienic without rusting in water washing. It is the point which provides the inside stopper of the container for drinks.

According to the first aspect of the present invention, there is provided a plug body attached to the upper opening of the container body, and an extraction opening connected to the upper side of the plug body by a hinge so as to be opened and closed, and opening the top plate of the plug body. A lid for a beverage container provided with a locking means for holding the fully closed state of the lid on the side opposite to the hinge.
A boss part is projected from the lid body, and an elastic member made of a non-metallic material is fitted to the boss part. When the lid body is fully closed, the boss part is fitted to the boss part. The attached elastic member is in a state of elastic contact with the plug body, and when the locking means is released, the lid body is urged in the opening direction,
The length of the elastic member is set so that the lower end abuts the top plate at a time slightly before the fully closed position when the lid is rotated from the fully open to the fully closed direction.
An engagement rib is formed on the plug body on the side opposite to the locking means. The lid body that is repelled by the elastic member by the unlocking operation of the locking means has a claw piece of the lid body. It is an inside stopper for a beverage container, characterized in that it is provided so as to be engaged with an engaging rib and hold the lid in an open position of 180 degrees or more.

According to a second aspect of the present invention, there is provided a plug body attached to the upper opening of the container main body, and an extraction port connected to the upper side of the plug body so as to be opened and closed by a hinge, and opening to the top plate of the plug body. A lid for a beverage container provided with a locking means for holding the fully closed state of the lid on the side opposite to the hinge.
A cylindrical drinking mouth protrudes from the top surface of the top plate of the stopper, and the inside of the drinking mouth serves as the spout, and the upper end surface of the drinking mouth is tapered so that the locking means side is high and the hinge side is low. Cutting and projecting a boss part on the lid, and fitting and mounting an elastic member formed of a non-metallic material on the boss part, when the lid is fully closed, The elastic member fitted and attached to the boss portion is in a state of elastic contact with the plug body, and when the lock means is released, the lid body is urged in the opening direction,
The top plate of the lid is formed at substantially the same angle as the upper end surface of the drinking mouth that is cut into a taper shape, and inside the lid is a packing that elastically contacts and seals the upper end surface in a liquid-tight manner The packing is formed in a spherical shape having a larger diameter than the upper end surface,
The length of the elastic member is set so that the lower end abuts the top plate at a time slightly before the fully closed position when the lid is rotated from the fully open to the fully closed direction.
An engagement rib is formed on the plug body on the side opposite to the locking means. The lid body that is repelled by the elastic member by the unlocking operation of the locking means has a claw piece of the lid body. It is an inside stopper for a beverage container, characterized in that it is provided so as to be engaged with an engaging rib and hold the lid in an open position of 180 degrees or more.

  The invention of claim 3 is characterized in that an air hole is provided in the top plate of the plug, and the elastic member is provided at a position to close the air hole when the lid is fully closed. It is the inside stopper of the container for drinks of 1 or 2.

  The invention according to claim 4 is the inside plug of the beverage container according to any one of claims 1 to 3, wherein the elastic member closes the air hole in the orthogonal direction.

  According to a fifth aspect of the present invention, in the beverage container according to any one of the first to fourth aspects, the elastic member has a hollow inside, and air can freely enter and leave the hollow portion. It is a stopper.

  According to the invention of claim 1, since the lid is urged in the opening direction by a non-metallic elastic member such as soft synthetic resin or rubber instead of the conventional metal spring, the inner plug is It does not rust even if it gets wet with water during washing, etc., and it is hygienic. Further, the lid body that is repelled by the elastic member by the unlocking operation of the lock means is configured so that the claw piece engages with the engaging rib and the lid body is securely held at the open position of 180 degrees or more.

  According to the invention of claim 2, the beverage in the container body can be easily drinkable by further inclining the upper end surface of the drinking mouth in a tapered shape having a high locking means side and a low hinge side.

  According to the invention of claim 3, the air hole is further closed by the elastic member, so that the dedicated parts can be reduced and the manufacturing cost can be reduced.

  According to the fourth aspect of the present invention, the air hole can be reliably closed by providing the elastic member in the direction orthogonal to the air hole.

  According to the fifth aspect of the present invention, since the inside of the elastic member is hollowed out so that the internal air can freely enter and exit, the elastic member can be easily expanded and contracted when the lid is opened and closed. It is possible to keep the bullet and air hole blocking function well.

  Preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below do not limit the contents of the present invention described in the claims. In addition, all of the configurations described below are not necessarily essential requirements of the present invention.

   1 to 3 show a first embodiment. A thermos bottle 1 includes a metal container body 2 and a synthetic resin inner plug 3 that is attached to an upper opening of the container body 2. . The container body 2 has a heat insulating double structure in which the upper opening edges of the inner cylinder 2a and the outer cylinder 2b are integrally joined, and the space between the inner cylinder 2a and the outer cylinder 2b is a vacuum heat insulating layer 4. A male screw 2c for screwing the inner plug 3 is formed on the upper outer periphery of the tube 2b.

  The inner plug 3 is connected to a plug body 5 which is attached to the upper opening of the container body 2 by screwing a female screw 5a to the male thread 2c of the outer cylinder 2b, and is connected to the plug body 5 by using a hinge 6 so as to be opened and closed. And a locking means 8 that holds the fully closed state of the lid body 7 on the side opposite to the hinge 6.

  The plug body 5 is formed in an inverted bottomed cylindrical shape in which a top plate 5c that covers the upper opening of the container body 2 is provided on the upper surface of the cylindrical portion 5b that surrounds the upper outer periphery of the outer cylinder 2b. A seesaw type lock button 10 and a locking ring 11 which are constituent members of the lock means 8 are provided on one side of 5b. Further, a drinking mouth 5d is provided on one side of the top plate 5c, and a guide rib 5e that is a component of the hinge 6 is provided on the other side of the top plate 5c. Further, the drinking mouth 5d and the guide rib 5e are provided. An air hole 12 is formed between the drinking hole 5d and the air hole 12 on a straight line L1 connecting the guide rib 5e and the lock button 10.

  The lid body 7 is formed in an inverted bottomed cylindrical shape having a cylindrical portion 7a continuous above the cylindrical portion 5b of the plug body 5 and a top plate 7b that closes the upper surface of the cylindrical portion 7a. Furthermore, the one side portion where the locking means 8 is located is high and the other side where the hinge 6 is located is low. The cylindrical portion 7a is provided with a locking rib 7c and a locking piece 7d as constituent members of the locking means 8 on one side, and a bifurcated arm 7e constituting the hinge 6 on the other side and an open state. A claw piece 7f to be held is formed, and a packing 13 and an elastic member 14 are arranged on a straight line L1 connecting the guide rib 5e of the hinge 6 and the lock button 10 of the locking means 8 inside the top plate 7b. Has been.

  The hinge 6 is configured by sandwiching the guide rib 5e of the plug body 5 with the bifurcated arm 7e of the lid body 7 and inserting the hinge shaft 15 therethrough, and the lid body 7 is formed by the hinge 6 on the upper part of the plug body 5. It is assembled so that it can be opened and closed. The locking means 8 includes a lock button 10 and a locking ring 11 of the plug body 5, a locking rib 7 c and a locking piece 7 d of the lid body 7, and the locking piece of the lid body 7 rotated to the closed position. When the lock button 10 is engaged with 7d and the engagement ring 11 is engaged with the engagement rib 7c, the fully closed state of the lid body 7 is maintained. Further, in order to open the lid 7 in the fully closed state, the locking ring 11 latched on the locking rib 7c is removed, and the lower side of the lock button 10 is pushed to engage the lock button 10 and the locking piece 7d. Is released, the lid 7 is urged in the opening direction by the elastic force of the elastic member 14 that the lid 7 has.

  The drinking mouth 5d of the plug body 5 protrudes from the top plate 5c into a substantially cylindrical shape having a thickness suitable for the drinker to include in the mouth and covered with the lid body 7, and the inside of the drinking mouth 5d A spout 16 is provided. The upper end surface 5f of the drinking mouth 5d is inclined so that the hinge 6 side is lower by an angle θ1 than the line L3 orthogonal to the central axis L2 of the drinking mouth 5d, and is substantially the same angle as the top plate 7b of the lid 7. The lock means 8 is high and the hinge 6 is low in taper. The air hole 12 is a small hole that communicates with the inside of the container body 2 and the outside of the stopper body 5. The air in the container body 2 is supplied and discharged as the amount of beverage increases or decreases, and the beverage flows through the drinking hole 5 d well. I can do it.

  The upper end surface 5f of the drinking mouth 5d is such that the highest point on the locking means 8 side and the lowest point on the hinge 6 side are located on the orthogonal direction line L3, and the further orthogonal direction line L3 is the lock button of the locking means 8 10 is provided so as to coincide with the above-mentioned straight line L1 connecting with the lid 10. With such a configuration, the packing 13 of the lid 7 seals the upper end surface 5f without a gap when the drinking mouth 5d is covered with the lid 7. In this way, there is no leakage of beverage.

  In addition, the inclination angle θ1 of the upper end surface 5f is suitably in the range of 5 to 30 degrees, and if it is less than 5 degrees, the drinker feels a burden on the posture when drinking the reduced drink, and more than 30 degrees. Then, the upper end surface 5f has a considerably protruding shape, which is not preferable in appearance.

  The packing 13 of the lid body 7 is formed in a spherical shape having a larger diameter than the upper end surface 5f of the drinking mouth 5d. When the lid body 7 is fully closed, the packing 13 elastically contacts the upper end face 5f of the drinking mouth 5d. It is designed to be liquid-tight. The elastic member 14 replaces a conventional metal spring that biases the lid 7 in the opening direction, and is formed in a bottomed cylindrical shape with a soft synthetic resin such as silicon or a non-metallic material such as rubber. The upper opening is fitted to the lid 7 by fitting into a cylindrical boss 7g projecting from the inner surface of the top plate 7b.

  The length of the elastic member 14 is set so that the lower end of the elastic member 14 comes into contact with the top plate 5c of the plug body 5 when the lid body 7 rotates slightly before the fully closed position. When closed, the elastic member 14 shrinks in the axial direction and the lower end closes the air hole 12 in a liquid-tight manner in the orthogonal direction. Further, when the fully closed state of the lid body 7 by the locking means 8 is released, the elastic member 14 extends in the axial direction and repels the lid body 7 in the opening direction, and the lower end of the elastic member 14 extends from the air hole 12. At a distance, the air hole 12 is opened. The hollow portion 17 in the elastic member 14 communicates with the outside through a slit 18 formed in one side portion of the boss portion 7g, so that the elastic member 14 can be expanded and contracted appropriately when the lid body 7 is opened and closed. .

  A plurality of engaging ribs 5g are formed on the outer surface on the side opposite to the locking means on the guide rib 5e of the plug body 5, and the lid body 7 that is repelled by the elastic member 14 by the releasing operation of the locking means 8 is A claw piece 7f of 7b is engaged between the engagement ribs 5g to hold the lid 7 at an open position of 180 degrees or more.

  This embodiment is configured as described above. When the lid 7 is fully closed using the lock means 8, the packing 13 seals the upper end surface 5f of the drinking mouth 5d in a liquid-tight manner, and the air hole 12 Is sealed in a liquid-tight manner by the elastic member 14 (FIG. 2). Further, when the locking means 8 is released, the elastic member 14 repels the lid body 7 and biases it in the opening direction around the hinge shaft 15, and the lid body 7 rotated to the side of the plug body 5 becomes the claw piece 7f. Locked by engagement with the engagement rib 5g, the upper part of the plug body 5 is opened (FIG. 3).

  And when drinking the drink in the container main body 2, the mouth is attached to the drinking mouth 5d while the drinking mouth 5d is directed to the drinker side and the open lid 7 is directed to the side opposite to the drinker. By tilting the main body 2 toward the drinker, the beverage in the container main body 2 flows out from the drinking mouth 5d (FIG. 1).

  In this embodiment, the drinking mouth 5d is shaped like a tube protruding from the top plate 5c of the plug body 5 as described above. There is no risk that the beverage will flow out of the mouth and wet the clothes. Moreover, since the drinking mouth 5d is not a suction type like a straw or a tube, it is suitable for drinking cold or hot beverages.

  Further, when the upper end surface 5f of the drinking mouth 5d is on a line L3 orthogonal to the central axis L2 of the drinking mouth 5d, when drinking a beverage in the container body 2 inclined in the horizontal direction as shown in FIG. 1, In this embodiment, the drinking mouth 5d has the upper end surface 5f inclined at an angle θ1 lower than the orthogonal line L3 and lowering the hinge side. Therefore, the drinker can afford to drink the beverage in the container body 2 easily without lifting the beverage by lifting the bottom side of the container body 2 by the angle θ1 and without causing the beverage to flow out. . Therefore, it is particularly effective when the beverage D in the container body 2 is reduced.

  In addition, since the lid 7 is biased in the opening direction by a non-metallic elastic member 14 such as soft synthetic resin or rubber instead of the conventional metal spring, the inner plug 3 is washed with water or the like. Even if it gets wet, it does not rust and is hygienic. Furthermore, since the elastic member 14 is provided on the lid body 7 side, there is no unnecessary protrusion on the plug body 5, so that there is no inconvenience such as contact with the nose during drinking. Further, since the air hole 12 is closed by the elastic member 14, the number of parts can be reduced and the manufacturing cost can be reduced. Moreover, since the elastic member 14 is provided in a direction orthogonal to the air holes 12, the air holes 12 can be reliably closed.

  Furthermore, the elastic member 14 has a bottomed cylindrical shape having a hollow portion 17 inside, and air inside the hollow portion 17 can freely enter and exit outside through the slit 18 of the boss portion 7g. The accompanying elastic member 14 can be expanded and contracted satisfactorily, and the function of urging the lid body 7 in the opening direction and the function of closing the air holes 12 can be maintained well for a long period of time.

  Further, on the upper end surface 5f of the drinking mouth 5d, the highest point on the locking means 8 side and the lowest point on the hinge 6 side are positioned on a straight line L1 connecting the lock button 10 of the locking means 8. Therefore, when the lid 7 is closed, a force in the orthogonal direction is applied from the packing 13 to the upper end surface 5f, and the upper end surface 5f is sealed in a liquid-tight manner without any gaps, so that there is no risk of the beverage leaking.

  In the above-described embodiment, the air hole of the plug is closed with the elastic member. However, some beverage containers do not have air holes, and even if the beverage container has air holes, It is not limited to closing the air hole with the elastic member. It is desirable that the elastic member has a hollow inside, but it does not prevent the elastic member from having a solid shape. Furthermore, it is also free to dispose the elastic member at a place other than the straight line connecting the hinge and the locking means.

  As described above, the inner stopper of the beverage container according to the present invention can be applied to various uses.

FIG. 3 is a cross-sectional view taken along the line II of FIG. 3 showing the first embodiment of the present invention. Sectional drawing of the upper part of the thermos showing the first embodiment of the present invention Opening plan view of the thermos showing the first embodiment of the present invention

Explanation of symbols

1 ... Thermos (container for beverages of the present invention)
2 ... Container body 2a ... Inner cylinder 2b ... Outer cylinder 3 ... Inner plug 4 ... Thermal insulation layer 5 ... Plug body 5b ... Cylindrical part 5c ... Top plate 5d ... Drinking mouth 5e ... Guide rib 5f ... Upper end surface 5g of drinking mouth 5d ... Engaging rib 5 ... Mounting ring 6 ... Hinge 7 ... Lid 7a ... Cylindrical part 7b ... Top plate 7c ... Locking rib 7d ... Locking piece 7e ... Bifurcated arm 7f ... Claw piece 7g ... Boss part 8 ... Locking means 10 ... lock button 11 ... locking ring 12 ... air hole 13 ... packing 14 ... elastic member 16 ... spout 17 ... cavity 18 ... slit 20 ... drinking mouth 20a ... upper end surface of drinking mouth 20

Claims (5)

A stopper attached to the upper opening of the container body, and a lid connected to the upper side of the stopper by a hinge so as to be openable and closable and liquid-tightly covering an extraction port opening in the top plate of the stopper. In the middle stopper of the beverage container provided with a locking means for holding the fully closed state of the lid on the opposite side of the hinge,
A boss part is projected from the lid body, and an elastic member made of a non-metallic material is fitted to the boss part. When the lid body is fully closed, the boss part is fitted to the boss part. The attached elastic member is in a state of elastic contact with the plug body, and when the locking means is released, the lid body is urged in the opening direction,
The length of the elastic member is set so that the lower end abuts the top plate at a time slightly before the fully closed position when the lid is rotated from the fully open to the fully closed direction.
An engagement rib is formed on the plug body on the side opposite to the locking means. The lid body that is repelled by the elastic member by the unlocking operation of the locking means has a claw piece of the lid body. An inner cap for a beverage container, which is provided so as to engage with an engagement rib and hold the lid in an open position of 180 degrees or more. A stopper attached to the upper opening of the container body, and a lid connected to the upper side of the stopper by a hinge so as to be openable and closable and liquid-tightly covering an extraction port opening in the top plate of the stopper. In the middle stopper of the beverage container provided with a locking means for holding the fully closed state of the lid on the opposite side of the hinge,
A cylindrical drinking mouth protrudes from the top surface of the top plate of the stopper, and the inside of the drinking mouth serves as the spout, and the upper end surface of the drinking mouth is tapered so that the locking means side is high and the hinge side is low. Cutting and projecting a boss part on the lid, and fitting and mounting an elastic member formed of a non-metallic material on the boss part, when the lid is fully closed, The elastic member fitted and attached to the boss portion is in a state of elastic contact with the plug body, and when the lock means is released, the lid body is urged in the opening direction,
The top plate of the lid is formed at substantially the same angle as the upper end surface of the drinking mouth that is cut into a taper shape, and inside the lid is a packing that elastically contacts and seals the upper end surface in a liquid-tight manner The packing is formed in a spherical shape having a larger diameter than the upper end surface,
The length of the elastic member is set so that the lower end abuts the top plate at a time slightly before the fully closed position when the lid is rotated from the fully open to the fully closed direction.
An engagement rib is formed on the plug body on the side opposite to the locking means. The lid body that is repelled by the elastic member by the unlocking operation of the locking means has a claw piece of the lid body. An inner cap for a beverage container, which is provided so as to engage with an engagement rib and hold the lid in an open position of 180 degrees or more.   3. The beverage according to claim 1, wherein an air hole is provided in the top plate of the stopper, and the elastic member is provided at a position that closes the air hole when the lid is fully closed. Container stopper.   The inside plug of the beverage container according to any one of claims 1 to 3, wherein the elastic member closes the air hole in the orthogonal direction.   The inside plug of the beverage container according to any one of claims 1 to 4, wherein the elastic member has a hollow inside, and air can freely enter and exit from the hollow portion.

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