JP4893315B2 - Beverage container stopper structure - Google Patents

Description

  The present invention relates to a stopper structure for a beverage container, and more particularly to a stopper structure for a container in which hot contents are placed inside, such as a coffee server or a thermos.

  For example, in a container in which hot contents are placed inside, such as a coffee server or a thermos bottle, it is conceivable to seal with a stopper so that the temperature of the contents does not decrease. However, if it is sealed with a stopper with hot contents inside, steam will be generated in the container and the internal pressure will increase, and if the valve is opened in that state, the steam will spout together with the contents due to the internal high pressure. There was a risk that the ejected contents could hit the hands and cause an unexpected disaster.

  In order to eliminate such a harmful effect, a beverage container stopper structure as shown in FIG. 14 has been proposed. The stopper main body 1 shown in the figure has a canopy 2, a lever 3, an inner stopper 4, a pressure reducing valve 5, a valve member 6 and the like, and is assembled integrally, and is detachable from an opening of a container such as a coffee server or a thermos (not shown). To close the inside of the container.

  The canopy 2 is a substantially cap-shaped member that covers the upper surface of the plug body 1, and a bearing portion (not shown) that supports the shaft 3 a of the lever 3 is provided on the front side (on the spout 7 b side). A notch 2a for allowing the operation portion 3b of the lever 3 to protrude rearward is provided on the side (lever 3 side). The lever 3 has a shaft 3a in the front, an operation portion 3b in the rear, a first pressing portion 3c and a second pressing portion 3d in the bottom therebetween, and a shaft on the bearing portion of the canopy 2. 3a is pivotally supported, and the operating portion 3b is attached in a form extending horizontally from the notch 2a to the rear, and the operating portion 3b is rotatably attached as indicated by an arrow.

  The inner plug 4 is a member for supporting the valve member 6 and forming the liquid passage 7. The inner plug 4 includes an outer peripheral wall 4a, a horizontal partition wall 4b, a vertical partition wall 4c, and left and right side walls 4d. The horizontal partition wall 4b, the vertical partition wall 4c, and the left and right side walls 4d form a liquid passage 7 on the front side of the plug body 1. The liquid passage 7 has an inlet 7a that opens below the inner plug 4 at its lower end, and a spout 7b that opens in front of the inner plug 4 at its upper end, so that the valve member 6 is opened. Then, the content in the container is poured from the inlet 7a and poured out from the outlet 7b, as indicated by a circle 2 with a black arrow.

  The valve member 6 is a substantially trumpet-shaped member that is supported by a guide cylinder 4e that is erected from a horizontal partition wall 4b of the inner plug 4 so as to be movable up and down. 6a is attached to the second pressing portion 3d of the lever 3 so as to face the second pressing portion 3d with a gap, and the valve plate 6b at the lower end thereof is attached to the inlet 7a.

  The pressure reducing valve 5 is a columnar member that opens and closes an opening 10 formed at the rear of the horizontal partition wall 4 b of the inner plug 4. A first spring 8 is interposed between the pressure reducing valve 5 and the valve head 5 a at the upper end thereof. 1 It contacts with the press part 3c, and it attaches in the form which closes the opening 10 with the valve plate 5b of the lower end.

  And the valve opening operation | movement of the valve member 6 is performed as follows. That is, when the operating portion 3b of the lever 3 is rotated downward as indicated by an arrow, the first pressing portion 3c first pushes down the pressure reducing valve 5 and opens the opening 10 in conjunction with the downward movement. Therefore, the high-pressure steam in the container is immediately discharged from the opening 10 as indicated by a circle 1 with a white arrow, and the inside of the container is depressurized. When the operation portion 3b is further rotated downward, the second pressing portion 3d comes into contact with the valve head 6a, and the valve member 6 is moved downward with a delay from the pressure reducing valve 5. Then, the inlet 7a is opened, and the contents can be poured out from the spout 7b by tilting the container. At the time of dispensing, since the inside of the container has already been depressurized, the contents will not be ejected simultaneously with the dispensing (see, for example, Patent Document 1).

  As described above, the conventional one has no harmful effect that the contents are simultaneously ejected together with the steam at the time of pouring, and the safety is ensured as such. By the way, for example, a container for storing hot contents inside, such as a coffee server or a thermos bottle, is desired to be as light as possible and low in price because it can be lifted and tilted.

  However, the conventional one uses the pressure reducing valve 5, and in order to operate the pressure reducing valve 5, a thick portion called the first pressing portion 3 c must be formed at the lower portion of the lever 3, and the pressure reducing valve 5 The first spring 8 has to be provided in order to constantly move up, so that the weight is increased, the number of parts is increased, and the cost is increased.

  The object of the present invention is to solve such problems, and by allowing the internal pressure reduction with a time difference and the content to be poured out with a simple structure when the content is poured out. An object of the present invention is to provide a lightweight and low-cost beverage container stopper structure that eliminates the harmful effects of the content being ejected at a high pressure.

  In order to achieve the above object, the present invention adopts the following configuration.

  In the invention which concerns on Claim 1, it has a beverage container and the stopper main body attached to the opening part of this beverage container, and this stopper main body is a valve member which opens or shuts off the inside and outside of the said beverage container, and content A liquid passage for pouring out a product and an inner stopper having a passage for releasing the pressure in the beverage container, and when the valve member is opened, the valve member first opens the passage for releasing the pressure, and then the liquid Configuration to open the passage. And by such a structure, even if the inside of a container is sealed with a stopper main body and the inside of a container becomes high pressure by the vapor | steam for that reason, when a beverage container is opened, the content does not spout by high pressure at the same time as opening the valve. . Further, the pressure reducing valve, the spring, and the pressure reducing valve pressing portion are unnecessary, so that the weight is reduced and the cost is reduced.

  According to a second aspect of the present invention, the means for first opening the passage for releasing the pressure and then opening the liquid passage is a cylindrical protrusion at the lower end of the liquid passage and a groove provided on the upper surface of the valve member. And by such structure, like the invention which concerns on Claim 1, even if the inside of a container is sealed with a stopper main body and the inside of a container becomes high pressure by the vapor | steam for that reason, at the time of valve opening of a drink container, The contents are no longer ejected by high pressure. Further, the pressure reducing valve, the spring, and the pressure reducing valve pressing portion are unnecessary, so that the weight is reduced and the cost is reduced.

  In the invention according to claim 3, first, the means for releasing the pressure and then the means for opening the liquid passage are provided at the lower end of the inner plug, the tubular member into which the valve member is fitted, and the tubular member The structure which is a notch groove provided in the inner peripheral surface. And by such structure, like the invention which concerns on Claim 1, even if the inside of a container is sealed with a stopper main body and the inside of a container becomes high pressure by the vapor | steam for that reason, at the time of valve opening of a drink container, The contents are no longer ejected by high pressure. Further, the pressure reducing valve, the spring, and the pressure reducing valve pressing portion are unnecessary, so that the weight is reduced and the cost is reduced.

  The invention according to claim 4 is configured such that the passage for releasing the pressure communicates forward from the rear side surface of the plug main body via an annular groove on the upper surface of the inner plug. With such a configuration, in addition to the effects of the inventions according to claims 1 to 3, during the decompression, since the steam is discharged from the spout side opposite to the lever, the steam does not hit the hand, for example.

  In the inventions according to claims 1 to 3, even when the inside of the container becomes high pressure, when the valve member is opened, the steam is first discharged only by the operation of the valve member, and then the contents are poured out. In addition, a time difference can be provided between the discharge of the steam and the discharge of the contents, and adverse effects such as inadvertent discharge of the contents due to the internal pressure can be prevented simultaneously with the opening of the valve member. Moreover, since the pressure-reducing valve, the spring, and the pressure-reducing valve pressing portion are unnecessary, the weight can be reduced, so that the convenience of the beverage container can be enhanced. Furthermore, since the number of parts can be reduced, the production cost can be reduced accordingly.

  In the invention according to claim 4, the steam vent passage, which is a passage for releasing pressure, is communicated with the front side through the annular groove on the upper surface of the inner plug from the rear side surface of the plug body, and the steam discharged from the steam vent passage is It becomes possible to escape from the vicinity of the spout on the front side of the beverage container to the outside, and it is possible to prevent the steam from hitting a hand or the like. Therefore, safety can be further improved.

  FIG. 1 to FIG. 7 show the stopper structure of the beverage container of the present invention. 1 shows a schematic cross-sectional view of an example used as a coffee server, FIG. 2 shows an enlarged cross-sectional view when the beverage container is fully closed, FIG. 3 shows an enlarged cross-sectional view when the beverage container is half-opened (when decompressed), and FIG. Is an enlarged cross-sectional view when the beverage container is fully opened (during dispensing), FIG. 5 is an exploded perspective view of the stopper structure, FIG. 6 is a plan view of the lever, and FIG. 7 is a plan view with the canopy removed. , Showing the steam discharge route. In addition, the beverage container stopper structure of the present invention is a container stopper structure in which contents such as hot water are put inside such as a coffee server, a thermos bottle, etc., and the internal pressure is increased when the lid is capped, In the following, a coffee server plug structure will be described as an example.

  In FIG. 1, the coffee server 20 which is an example of the drink container of this invention used with the coffee maker 15 is shown. The coffee maker 15 is a product having a substantially U-shaped cross section having a placing table 17 at the lower end and an extractor 18 at the upper end. The coffee server 20 is placed on the placing table 17, and the coffee powder is placed on the extractor 18. Then, hot water is poured from above the extractor 18, and the extracted coffee liquid is dropped into the coffee server 20 and stored.

  A pressing member 19 is provided at the lower end of the extractor 18 of the coffee maker 15. The pressing member 19 is provided so as to protrude upward in the center of the upper portion of the stopper main body 30 that closes the coffee server 20 when the coffee server 20 is placed on the mounting table 17. Press the pin 82 to allow the coffee liquid to flow into the coffee server 20.

  That is, the pin 82 of the plug body 30 is pressed and simultaneously opens the valve member opening / closing packing 81 provided on the plug body 30. Therefore, when coffee powder is put into the extractor 18 and hot water is poured from above the extractor 18, the extracted coffee liquid flows down to the upper surface of the plug body 30, and a liquid passage 75 a formed at the center of the plug body 30. Through the valve member opening / closing packing 81 and flowing into the coffee server 20 for storage.

  The coffee server 20 includes a container main body 21, a shoulder member 25, and a plug main body 30. The container body 21 is a metal container for storing contents such as hot water having an opening 21 a at the upper end thereof, and has a double structure of an outer container 22 and an inner container 23, and a vacuum is formed between the containers 22 and 23. A heat insulating layer 24 is formed to enhance the heat retaining effect of the contents. The container body 21 may have a single structure.

  The shoulder member 25 is a substantially cylindrical resin member that is attached to the upper end of the opening 21a of the container body 21 via a packing 28, has a spout 26 on the front side, and has a handle 27 on the rear side. In addition, the packing 28 is forcibly fitted to the upper end portion of the container main body 21 in such a manner that the packing 28 is brought into contact with the upper end portion of the opening 21 a, and the rotation is stopped by the screw 29. The cylindrical inner wall surface 25a of the shoulder member 25 is positioned so as to hang down into the opening 21a of the container body 21 after the shoulder member 25 is attached to the container body 21, and the inner wall surface 25a A female screw 25b for screwing the plug body 30 is provided on the inner peripheral surface.

  Next, the plug body 30 will be described. The stopper body 30 includes a canopy 31, a lever 40, an inner stopper 50, a valve member 70, and the like. The stopper body 30 is assembled integrally, is detachably screwed to the shoulder member 25 of the container body 21, and is attached to the container body. 21 is closed in a sealed state.

  The canopy 31 is a substantially cap-shaped member that covers the upper surface of the stopper main body 30, and a first shaft 41 provided at the tip of the lever 40 is supported inside the front side (spout 26 side). The bearing flat plate 36 having the bearing portion is provided so as to hang in parallel, and a notch 32 for allowing the operation portion 43 of the lever 40 to protrude rearward is provided on the rear side (lever 40 side). Further, the top surface of the canopy 31 has a mortar-shaped dent 33, and a central opening 34 penetrating in the vertical direction is formed at the center of the dent 33. For example, the dent 33 and the central opening 34 are provided with the coffee liquid. It guides in the container main body 21 more. One locking piece 35 facing inward is provided at the front bottom of the canopy 31, and the lower end of the canopy 31 is fitted to the upper end of the inner plug 50, and the locking piece 35 is The canopy 31 is attached to the inner plug 50 by forcibly fitting into an engagement groove 67 provided at the upper end of the plug 50.

  The lever 40 is made of a resin having a first shaft 41 at the front, a hollow ring portion 42 at the rear of the first shaft 41, and an operation portion 43 at the rear end, as shown in FIG. It is a member. The first shaft 41 is pivotally supported by a bearing flat plate 36 that hangs down from the inner bottom portion of the canopy 31, and supports the lever 40 so as to be rotatable in the vertical direction indicated by an arrow in FIG. The hollow ring portion 42 is a portion that supports a bearing protrusion 83 that protrudes upward from the upper end portion of the shaft cylinder portion 75 of the valve member 70, and has a large diameter portion 44 and a small diameter portion 45. Are provided with two inwardly projecting second shafts 46 in the radial direction. The second shaft 46 is pivotally supported by a bearing 84 provided on a bearing protrusion 83 of the valve member 70 described later, and pushes down the valve member 70 in conjunction with the downward rotation of the operation portion 43.

  The inner plug 50 is a member for supporting the valve member 70 and forming a passage for releasing the pressure in the liquid passage 56 and the container body 21, and the whole is shown in FIG. The inner plug 50 includes an outer peripheral wall 51 forming an outer wall, a horizontal partition wall 52 provided at a position approximately 1/3 from the bottom, an arcuate vertical partition wall 53 provided on the front side, and the vertical partition wall 53. Left and right partition walls 54 and 54 provided in the vertical direction and in parallel on both side end portions of the vertical partition wall 53 and an upper partition wall 55 provided so as to cover the upper surfaces of the vertical partition wall 53 and the left and right partition walls 54 and 54. The wall 51, the vertical partition wall 53, the left and right partition walls 54, 54, and the upper partition wall 55 form a liquid passage 56 that is substantially rectangular in cross section and bent at a substantially right angle on the front side of the plug body 30. The liquid passage 56 has an inlet 57 that opens below the inner plug 50 at its lower end, and a spout 58 that opens forward of the inner plug 50 at its upper end.

  At the lower end of the liquid passage 56, a cylindrical protrusion 56 a that is the same as the substantially rectangular cross section of the liquid passage 56 is formed to hang down. When the valve member 70 is closed, the cylindrical protrusion 56a is fitted in a rectangular groove 73 formed on the upper surface of the valve member 70 with a slight gap so that the valve member 70 is opened more than a certain amount. Then, the contents in the container main body 21 are injected from the injection port 57 and discharged from the spout 58 to the outside as indicated by arrows in FIG.

  A male screw 59 is formed on the outer periphery of the outer peripheral wall 51, and the inner plug 50 is screwed into a female screw 25 b provided on the inner wall surface 25 a of the shoulder member 25. Will be attached to. Further, at the center of the inner plug 50, there is a cylindrical guide cylinder 60 with the vertical partition wall 53 as one wall surface and the shaft cylinder portion 75 of the valve member 70 supported so as to be movable up and down.

  Further, the horizontal partition wall 52 provided on the outer periphery of the guide cylinder 60 divides the inside of the inner plug 50 into an upper chamber 61 and a lower chamber 62, and the upper chamber 61 includes two pieces as shown in FIG. A thick plate-like wall body 63 is erected in such a manner that one side is in contact with the outer peripheral wall 51. In the two plate-like wall bodies 63, a lower end is opened to the lower chamber 62, and an upper end thereof is opened to the upper end opening 65 of the upper outer peripheral surface of the inner plug 50 to release the pressure bent at a substantially right angle. A certain steam vent passage 64 is formed. The upper end opening 65 of the steam release passage 64 is formed in the outer peripheral portion of the upper end of the inner plug 50 and communicates with an annular groove 66 reaching the spout 26 and is discharged into the lower chamber 62 when the valve member 70 is opened. The steam is discharged from the spout 26 to the front side through the annular groove 66 from the steam vent passage 64 as shown by an arrow in FIG. For this reason, the steam does not directly hit the hand holding the handle 27 or the like.

  An engagement groove 67 is provided on the upper surface of the upper partition wall 55, and when the canopy 31 is attached on the inner plug 50, a locking piece 35 provided at the lower end of the canopy 31 is provided in the engagement groove 67. It is forcibly engaged. In this example, the passage for releasing pressure corresponds to the lower chamber 62, the steam vent passage 64, and the annular groove 66, but is not limited thereto, and for example, the steam vent passage 64 and the annular groove 66 are not provided. It may be discharged from 62 through the notch 32 to the outside.

  The valve member 70 is a resin member for pouring out steam and contents, and the whole is shown in FIG. The valve member 70 includes a valve plate portion 71 and a shaft tube portion 75. The valve plate portion 71 is a horizontal and disk-shaped member, and a seal packing 72 is provided at the outer peripheral end thereof. A rectangular groove 73 is provided on the upper surface. The rectangular groove 73 has a similar shape slightly larger than the cylindrical protrusion 56a provided in a form that hangs down from the lower end of the liquid passage 56 of the inner plug 50, and is substantially the same depth as the vertical length of the cylindrical protrusion 56a. When the valve member 70 is closed, the cylindrical protrusion 56a is inserted into the rectangular groove 73 with a slight gap. Then, the valve member 70 is opened more than a certain value, and the injection port 57 is opened in a state in which the tip of the cylindrical projection 56a protrudes from the rectangular groove 73. When the injection port 57 is opened, the contents in the container main body 21 enter the liquid passage 56 from the injection port 57 and are discharged from the injection port 58 to the outside as indicated by arrows in FIG.

  The shaft tube portion 75 is a hollow portion standing at the center of the valve plate portion 71, and a seal packing 76 is provided on a substantially intermediate outer peripheral surface thereof to seal between the inner peripheral surface of the guide tube 60. . In addition, an extract passage 75a for allowing an extract such as coffee liquid to flow into the container body 21 is provided therein, and further below the extract passage 75a toward the center on the same circumference. A plurality of ribs 77 extending horizontally for a certain length are provided.

  A valve rod 78 that is long in the vertical direction is provided in the center of the extract passage 75a. A disc-shaped valve head 80 projecting in the horizontal direction is formed at the upper end of the valve rod 78, and a passage opening / closing packing 81 is provided at the lower end thereof. A spring 79 is interposed between the lower surface of the valve head 80 and the upper surface of the rib 77, and the valve rod 78 is always moved upward, and the passage opening / closing packing 81 provided at the lower end portion of the valve rod 78 is connected to the valve plate portion. It presses on the lower surface of 71, and the extract channel | path 75a is closed.

  After the plug body 30 is assembled, the pin 82 is attached in a form that hangs down from the central opening 34 of the canopy 31. As shown in FIG. 5, the pin 82 is a member composed of an umbrella part 82a having a plurality of openings 82c in the vertical direction and a valve rod 82b, and is movable in the vertical direction. In the normal state, the lower end of the valve stem 82b is in contact with the upper surface of the valve head 80 of the valve stem 78, and the umbrella portion 82a is mounted above the upper surface of the central opening 34. It is done. As shown in FIG. 1, when the container body 21 is placed on the mounting table 17 of the coffee maker 15, the pressing member 19 provided at the lower end of the extractor 18 pushes down the pin 82, and the pin 82 resists the force of the spring 79. Then, the valve rod 78 is pushed down, and the passage opening / closing packing 81 is opened. As a result, the coffee liquid extracted by the extractor 18 is introduced into the container body 21 through the opening 82c of the pin 82 and the extract passage 75a.

  At the upper end portion of the shaft tube portion 75, two bearing protrusions 83, 83 each having a bearing 84 at the same height are provided upright at positions opposed to each other in the radial direction. The bearing projections 83 and 83 are portions that are fitted into the large-diameter portion 44 of the ring portion 42 of the lever 40. The bearing projection pieces 83 and 83 are fitted into the large-diameter portion 44, as shown in FIG. The valve member 70 is rotated in the arrow direction of the “attachment” direction (corresponding to the counterclockwise arrow direction in FIG. 6), and the ring portion 42 of the lever 40 is mounted on the bearing 84 provided on each of the bearing protrusions 83 and 83. The lever 40 and the valve member 70 are integrally attached by press-fitting the first shafts 41, 41 provided in the valve, and the valve member 70 is moved downward in conjunction with the downward rotation of the lever 40. In addition, when attaching the lever 40, the spring member 47 is interposed between the 1st axis | shaft 41 and the upper partition wall of the inside plug 50, and always presses the lever 40 counterclockwise.

  Assembly is performed as follows. First, the first shaft 41 provided at the tip of the lever 40 is press-fitted into the bearing flat plate 36 provided at the inner bottom portion of the canopy 31 and is pivotally supported to be in the uppermost state in FIG. Next, the canopy 31 that pivotally supports the lever 40 is placed on the top of the inner plug 50, and a force is applied from above and below to engage the locking piece 35 provided on the front bottom of the canopy 31 and the front upper end of the inner plug 50. By forcibly fitting the groove 67, the canopy 31 and the inner plug 50 are integrally attached.

  Thereafter, the shaft tube portion 75 of the valve member 70 is fitted into the guide tube 60 of the inner plug 50, the bottom portion of the inner plug 50 is brought into contact with the upper surface of the valve member 70, and the bearing protrusions 83 and 83 are connected to the ring portion of the lever 40. The large diameter portion 44 of 42 is fitted. Then, the valve member 70 is rotated in the arrow direction in the “attachment” direction as shown in FIG. 5 (on the lever 40 side, the counterclockwise arrow direction as shown in FIG. 6). The first shafts 41, 41 provided on the ring portion 42 of the lever 40 are press-fitted into the bearings 84, 84 provided respectively, and the lever 40 and the valve member 70 are integrally attached. As a result, the plug body 30 is assembled, and the valve member 70 can be moved downward simultaneously by rotating the lever 40 downward. In the assembled plug body 30, the male screw 59 provided on the outer periphery of the outer peripheral wall 51 is screwed into the female screw 25 b provided on the inner wall surface 25 a of the shoulder member 25, and the container main body 21 is sealed with the seal packing 85.

  First, when the valve member 70 is opened, a mechanism is described in which steam is first poured out to decompress the interior of the container body 21 and then the contents are poured out with a time difference. When the valve member 70 is closed, as shown in FIG. 2, the lever 40 is in a substantially horizontal state that is not rotated, and the upper surface of the seal packing 72 provided on the outer periphery of the valve member 70 is the lower end of the inner plug 50. A cylindrical projection 56a that is in contact with the portion and provided at the lower end of the liquid passage 56 of the inner stopper 50 is fitted into a rectangular groove 73 provided on the upper surface of the valve plate portion 71, and the inside of the container body 21 is sealed. ing.

  When the lever 40 is pivoted substantially half downward as shown in FIG. 3 to the half open state, the valve plate 71 is pushed downward by the pivoting of the lever 40, and the upper surface of the valve plate 71 has the inner plug 50. Is located slightly above the lower end of the cylindrical projection 56a provided at the lower end of the liquid passage 56. In this position, the upper surface of the valve plate portion 71 is located below the lower end of the inner plug 50 and communicates with the lower chamber 62 below the inner plug 50 and the inside of the container body 21, but the cylindrical protrusion 56 a at the lower end of the inner plug 50. Is still in the rectangular groove 73 on the upper surface of the valve plate 71. Therefore, the high-pressure steam in the container body 21 is discharged from the spout 26 to the front side through the steam release passage 64 and the annular groove 66 from the lower chamber 62 as shown by the arrows in FIG. 3 and FIG. 21 is depressurized. However, the contents are not discharged from the liquid passage 56.

  Further, when the lever 40 is rotated downward as much as shown in FIG. 4 and fully opened, the valve plate 71 is further pushed down by the rotation of the lever 40, and the upper surface of the valve plate 71 is the lower end of the liquid passage 56. It is located further below the lower end of the cylindrical projection 56a. In this position, the inlet 57 is completely open. Therefore, as shown by an arrow in FIG. 4, the contents can be poured out from the liquid passage 56. In this case, the inside of the container main body 21 has already been depressurized, and the contents are not ejected due to the high pressure during the pouring.

  Although the means for providing the time difference in this example has been described as the cylindrical protrusion 56a at the lower end of the liquid passage 56 and the rectangular groove 73 on the upper surface of the valve member 70, for example, the cylindrical protrusion provided at the lower end of the liquid passage 56 The configuration may be such that 56 a is erected on the upper surface of the valve member 70 instead of the lower end of the liquid passage 56, and the cylindrical protrusion is fitted into the liquid passage 56. In that case, it is not necessary to provide a groove on the upper surface of the valve member 70.

  8 to 10 show other beverage container stopper structures of the present invention. In this example, a means for providing a time difference is constituted by a skirt-like cylindrical member provided at the lower end of the inner plug and a notch groove provided in the inner peripheral surface of the cylindrical member. 8 shows a state when the valve member is fully closed, FIG. 9 shows a state when the valve member is half-opened, and FIG. 10 shows a state when the valve member is fully opened. In addition, the different part of Example 1 is mainly demonstrated and description is abbreviate | omitted about a common part.

  The main difference from the first embodiment is the bottom structure of the inner plug, but the following description will include the common part with the first embodiment. The inner plug 50 is a member for supporting the valve member 70 and forming a passage for releasing the pressure in the liquid passage 56 and the container main body 21. The outer peripheral wall 51 that forms the outer wall, and approximately 1/3 from the bottom. A horizontal partition wall 52 provided at a height position, an arcuate vertical partition wall 53 provided on the front side, and left and right partition walls 54, 54 provided on both side ends of the vertical partition wall 53 in the vertical direction and in parallel. And an upper partition wall 55 provided so as to cover the upper surfaces of the vertical partition wall 53 and the left and right partition walls 54, 54, and the outer peripheral wall 51, the vertical partition wall 53, the left and right partition walls 54, 54, and the upper partition wall 5. Thus, a liquid passage 56 having a substantially rectangular cross section and bent at a substantially right angle is formed on the front side of the plug body 30. The liquid passage 56 has an inlet 57 that opens below the inner plug 50 at its lower end, and a spout 58 that opens in front of the inner plug 50 at its upper end. When the valve is opened, the contents in the container main body 21 are injected from the injection port 57 and discharged from the spout 58 to the outside as indicated by arrows in FIG.

  A male screw 59 is formed on the outer periphery of the outer peripheral wall 51, and the inner plug 50 is screwed into a female screw 25 b provided on the inner wall surface 25 a of the shoulder member 25. Will be attached to. Further, in the center of the inner plug 50, there is a cylindrical guide tube 60 in which the vertical partition wall 53 is one wall surface and the shaft tube portion of the valve member 70 is supported to be movable up and down.

  Further, the horizontal partition wall 52 provided on the outer periphery of the guide cylinder 60 divides the inside of the inner plug 50 into an upper chamber 61 and a lower chamber 62, and the upper chamber 61 includes two pieces as shown in FIG. A thick plate-like wall body 63 is erected in such a manner that one side is in contact with the outer peripheral wall 51. In the two plate-like wall bodies 63, a lower end is opened to the lower chamber 62, and an upper end thereof is opened to the upper end opening 65 of the upper outer peripheral surface of the inner plug 50 to release the pressure bent at a substantially right angle. A certain steam vent passage 64 is formed. The upper end opening 65 of the steam release passage 64 is formed in the outer peripheral portion of the upper end of the inner plug 50 and communicates with an annular groove 66 reaching the spout 26 and is discharged into the lower chamber 62 when the valve member 70 is opened. The steam is discharged from the spout 26 to the front side through the annular groove 66 from the steam vent passage 64 as shown by an arrow in FIG. For this reason, the steam does not directly hit the hand holding the handle 27 or the like.

  In this example, a skirt-like cylindrical member 90 is provided in a form that hangs downward on the outer peripheral surface of the bottom of the inner plug 50. The inner diameter of the cylindrical member 90 is slightly larger than the outer diameter of the valve plate portion 71 of the valve member 70, and the height is substantially the same as the thickness of the valve plate portion 71 of the valve member 70. A notch groove 91 is formed on the inner peripheral surface on the rear side of the cylindrical member 90, that is, on the inner peripheral surface on the handle 27 side and below the lower chamber 62. The cutout groove 91 has a circular cross section, a vertical length that is shorter than the thickness of the valve plate portion 71 of the valve member 70, and is provided in a form extending upward from the lower end of the tubular member 90. Yes. Therefore, when the valve member 70 is closed, as shown in FIG. 8, the valve member 70 is fitted in a form that fits in the tubular member 90, and the container body 21, the liquid passage 56, and the lower chamber 62 are fitted. And is blocked.

  When the lever 40 is rotated approximately half downward as shown in FIG. 9 to the half open state, the valve plate 71 is pushed downward by the rotation of the lever 40, and the upper surface of the valve plate 71 has an inner plug 50. It is located slightly above the lower end of the cylindrical member 90 at the lower end. In this position, the upper surface of the inner plug 50 is located below the upper end of the notch groove 91, but the inlet 57 is still blocked from the inside of the container body 21. Therefore, the high-pressure steam in the container body 21 is discharged from the spout 26 to the front side through the steam vent passage 64 and the annular groove 66 from the lower chamber 62 as shown by the arrows in FIG. 9 and the arrow in FIG. The inside of the container main body 21 is depressurized. However, the contents are not discharged from the liquid passage 56. It should be noted that the point at which the inside of the container main body 21 and the lower chamber 62 communicate with each other can be determined as appropriate depending on the length of the notch groove 91, but is preferably between the fully closed state and the half open state.

  Further, when the lever 40 is rotated downward as much as shown in FIG. 10 and fully opened, the valve plate 71 is further pushed down by the rotation of the lever 40, and the upper surface of the valve plate 71 is It is located further below the lower end of the cylindrical member 90. In this position, the inlet 57 is completely open. Therefore, as shown by the arrow in FIG. 10, the contents can be poured out from the liquid passage 56. In this case, the inside of the container main body 21 has already been depressurized, and the contents are not ejected due to the high pressure during the pouring.

  11 and 12 show still another beverage container stopper structure of the present invention. In this example, a means for providing a time difference between a skirt-like cylindrical member provided at the lower end of the inner plug and a valve member rotatable within the cylindrical member is configured. FIG. 11 shows the entire cross section, and FIG. 12 shows the valve member when fully closed, half open, and fully opened. In addition, the different part of Example 1 is mainly demonstrated and description is abbreviate | omitted about a common part.

  The main difference from the first embodiment is the bottom structure of the inner plug and the valve member, but the following description will be made including the common parts with the first embodiment. The inner plug 50 is a member for supporting the valve member 70 and forming a passage for releasing the pressure in the liquid passage 56 and the container body 21, and includes an outer peripheral wall 51 that forms the outer wall, a bottom partition wall 92, and a front side. Arc-shaped vertical partition wall 53 provided, left and right partition walls 54, 54 provided in the vertical direction and in parallel at both end portions of vertical partition wall 53, and upper surfaces of vertical partition wall 53 and left and right partition walls 54, 54 An upper partition wall 55 provided to cover the outer peripheral wall 51, the vertical partition wall 53, the left and right partition walls 54, 54, and the upper partition wall 5. A liquid passage 56 bent at a substantially right angle is formed. The liquid passage 56 has an inlet 57 that opens below the inner plug 50 at its lower end, and a spout 58 that opens in front of the inner plug 50 at its upper end. When the valve is opened, the contents in the container main body 21 are injected from the injection port 57 and discharged from the spout 58 to the outside.

  A male screw 59 is formed on the outer periphery of the outer peripheral wall 51, and the inner plug 50 is screwed into a female screw 25 b provided on the inner wall surface 25 a of the shoulder member 25. Will be attached to. Further, at the center of the inner plug 50, there is a cylindrical guide cylinder 60 with the vertical partition wall 53 as one wall surface and the shaft cylinder portion 75 of the valve member 70 supported so as to be movable up and down.

  In addition, the bottom partition wall 92 provided on the outer periphery of the guide tube 60 forms a chamber 93 inside the inner plug 50, and the chamber 93 has two thick plate-like shapes as shown in FIG. The wall 63 is erected in such a manner that one side is in contact with the outer peripheral wall 51. In these two plate-like wall bodies 63, the lower end is opened below the bottom partition wall 92, and the upper end thereof is bent at a substantially right angle that opens into the upper end opening 65 of the upper outer peripheral surface of the inner plug 50. A steam vent passage 64 is formed as a passage for escaping. The upper end opening 65 of the steam release passage 64 is formed in the outer peripheral portion of the upper end of the inner plug 50 and communicates with an annular groove 66 reaching the spout 26 and is discharged into the lower chamber 62 when the valve member 70 is opened. The steam is discharged from the spout 26 to the front side through the annular groove 66 from the steam vent passage 64. For this reason, the steam does not directly hit the hand holding the handle 27 or the like.

  In this example, similarly to the second embodiment, a skirt-like cylindrical member 90 is provided on the outer peripheral surface of the bottom of the inner plug 50 so as to hang downward. The inner diameter of the cylindrical member 90 is slightly larger than the outer diameter of the valve plate portion 71 of the valve member 70, and the height thereof is substantially the same as the thickness of the valve plate portion 71 of the valve member 70. FIG. As shown in FIG. 4, the valve member 70 is fitted in a form that always fits in the tubular member 90.

  The valve member 70 is the same as that of the first embodiment except for a part of the shape of the valve plate portion 71 and its operation mode. First, the operation mode will be described. The valve plate portion 71 of the valve member 70 is rotatable in a state in which the valve plate portion 71 is fitted into a cylindrical member 90 formed on the bottom outer peripheral surface of the inner plug 50. The rotation is performed in conjunction with the horizontal rotation of the lever 40, and the range is 180 degrees.

  An example of the structure will be described. In the first embodiment, the engagement groove provided in the upper partition wall 55 of the inner plug 50 is an annular groove 67, the locking piece provided at the lower end of the canopy 31 is the annular piece 35, and the annular piece 35 is placed in the annular groove 67. Is engaged, the canopy 31 is locked to the inner plug 50, and the canopy 31 is rotatable on the inner plug 50 over 180 degrees. Next, the horizontal width of the notch 32 behind the canopy 31 is set to be slightly larger than the horizontal width of the lever 40 so that the lever 40 and the canopy 31 can be interlocked substantially integrally. With such a configuration, the valve plate 71 can be rotated within the cylindrical member 90 via the second shaft 46 and the shaft tube portion 75 by rotating the lever 40 in the horizontal direction.

  Next, regarding the valve plate portion 71, the valve plate portion 71 is provided with two openings, a large opening 94 and a small opening 95 penetrating in the vertical direction, separated by 90 degrees. The large opening 94 is substantially the same rectangular shape as the inlet 57 of the liquid passage 56, and the small opening 95 is substantially the same circle as the vapor vent passage 64 provided in the bottom partition wall 92. The large opening 94 and the small opening 95 are provided at a position overlapping the inlet 57 and the steam vent passage 64 when the valve member 70 shown in FIG. 12C is fully opened.

  When the valve member 70 is closed, the valve plate portion 71 is in the position shown in FIG. 12A. That is, the large opening 94 is located on the opposite side of the injection port 57, and the small opening 95 provided 90 degrees apart from the large opening 94 is located on the opposite side of the steam release passage 64. Therefore, the inside of the container main body 21 and the liquid passage 56 and the vapor vent passage 64 are blocked.

  When the lever 40 is rotated to the half open state, the valve plate portion 71 is positioned as shown in FIG. 12B. At this position, the large opening 94 and the vapor vent passage 64 overlap, but the inlet 57 is still blocked from the inside of the container body 21. Therefore, the high-pressure steam in the container main body 21 is discharged from the spout 26 to the front side through the vapor vent passage 64 and the annular groove 66, and the inside of the container main body 21 is decompressed. However, the contents are not discharged from the liquid passage 56.

  Further, when the lever 40 is rotated downward as much as possible and fully opened, the valve plate portion 71 is positioned as shown in FIG. 12C. At this position, the large opening 94 and the injection port 57 overlap, and the small opening 95 and the vapor release passage 64 overlap. Therefore, the contents can be poured out from the liquid passage 56. In this case, the inside of the container main body 21 has already been depressurized, and the contents are not ejected together with the steam at the time of pouring. Furthermore, since the small opening 95 and the steam vent passage 64 overlap each other and air is introduced into the container body 21 through the steam vent passage 64 and the small opening 95 at the time of pouring, the content can be smoothly poured out. Done.

  FIG. 13 shows still another beverage container stopper structure of the present invention. In this example, the lever 40 cannot be operated when the container body 21 is tilted. In addition, the different part of Example 1 is mainly demonstrated and description is abbreviate | omitted about a common part.

  In this example, lever operation prohibiting means is provided in the first to third embodiments. The lever operation prohibiting means includes a guide rail 96 and a stop member 97. The guide rail 96 is a rail-like member provided below the lever 40 and inclined upward from the rear handle 27 side toward the front spout 26 side. Side walls (not shown) are provided so that the stop member 97 does not fall downward. Further, a step portion 98 is provided in the vicinity of the uppermost portion, which is substantially horizontal and whose central bottom portion is slightly depressed.

  The stop member 97 is a rolling member having a spherical shape or a cylindrical shape, and is placed on the guide rail 96 so as to be able to roll without falling on the guide rail 96 from below to the upper stepped portion 98. When the container main body 21 is placed on a table or the like, the lever 40 is in the horizontal direction as shown in the figure, and the stopper member 97 is in the lowest position (B position).

  However, when the container body 21 is tilted forward with the handle 27, the stopper member 97 rolls on the guide rail 96 to reach the stepped portion 98 (C position). When the stop member 97 reaches the stepped portion 98, the position of the stepped portion 98 is determined so that there is a slight gap between the upper surface of the stop member 97 and the bottom surface of the lever 40. In this state, the lever 40 is pushed downward. Even if it moves, the lever 40 abuts against the stop member 97 and cannot move further downward.

  By the way, the means for providing a time difference according to the present invention has a relationship in which the time difference between the discharge of the steam and the discharge of the contents becomes shorter as the speed at which the lever 40 is pushed down becomes faster. When the lever 40 is pushed down in a state where it has been pressed, the desire to quickly pour out becomes strong and the lever 40 tends to be pushed with a strong force. Then, the time difference is shortened, the container body 21 is not completely decompressed, the contents are ejected by the high pressure in the container body 21, and the contents are ejected around the cup in which the contents are to be put. There is a risk of harm. In addition, even if a sufficient time difference is provided, when the lever 40 is pushed down with the container body 21 tilted, the hand with the handle 27 is positioned at the upper part in the vicinity of the spout 26 from which the steam is discharged, The vapor | steam ejected from this spout 26 vicinity rises, and bad effects, such as hitting a hand, also generate | occur | produce. In the case of this example, the above-described adverse effects can be prevented.

  In addition, in the case of this example, it demonstrated by the combined use with the means which provides the time difference described in Examples 1-3, However, It is not necessarily required to use together. That is, even in a conventional device that does not have a means for providing a time difference, by providing the lever operation prohibiting means, the contents resulting from the high pressure in the container body 21 that occurs when the lever 40 is pushed down while the container body 21 is tilted. It is possible to prevent unpredictable jetting, that is, scattering to the surroundings.

  The present invention is not limited to the configuration of the above-described embodiment, and can be appropriately changed in design without departing from the gist of the invention.

Schematic sectional view showing the entire example of using the beverage container of the present invention as a coffee server The expanded sectional view which shows the stopper structure at the time of the beverage container full closure of this invention The expanded sectional view which shows the stopper structure at the time of the beverage container half-opening (at the time of pressure reduction) of this invention The expanded sectional view which shows the stopper structure at the time of the beverage container full open (pouring) of this invention The perspective view which shows the decomposition | disassembly state of the stopper structure of this invention Top view of the lever of the stopper structure of the present invention The top view which shows the state which removed the canopy of the stopper structure of this invention The expanded sectional view which shows the other stopper structure at the time of the beverage container full closure of this invention The expanded sectional view which shows the other stopper structure at the time of the beverage container half-opening (at the time of pressure reduction) of this invention The expanded sectional view which shows the other stopper structure at the time of the beverage container full open of the invention of this application (at the time of extraction) The expanded sectional view which shows the other stopper structure of the beverage container of this invention The bottom view of the valve member which shows the state at the time of full closure of FIG. The expanded sectional view which shows the other stopper structure of the beverage container of this invention The schematic sectional drawing of the stopper structure of the conventional drink container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 15 ... Coffee maker 17 ... Mounting stand 18 ... Extractor 19 ... Pressing member 20 ... Coffee server 21 ... Container main body 21a ... Opening part 22 ... Outer container 23 ... Inner container 24 ... Vacuum insulation layer 25 ... Shoulder member 25a ... Inner wall surface 25b ... Female screw 26 ... Spout 27 ... Handle 28 ... Packing 29 ... Screw 30 ... Plug body 31 ... Canopy 32 ... Notch 33 ... Notch 34 ... Center opening 35 ... Locking piece 36 ... Bearing flat plate 40 ... Lever 41 ... First Axis 42 ... Ring part 43 ... Operation part 44 ... Large diameter part 45 ... Small diameter part 46 ... Second axis 47 ... Spring member 50 ... Inner plug 51 ... Outer wall 52 ... Horizontal partition wall 53 ... Vertical partition wall 54 ... Left and right partition walls 55 ... Upper partition wall 56 ... Liquid passage 56a ... Cylindrical protrusion 57 ... Inlet 58 ... Outlet 59 ... Male screw 60 ... Guide cylinder 61 ... Upper chamber 62 ... Lower chamber 63 ... Plate-like wall body 64 ... Vapor removal Path 65 ... Upper end opening 66 ... Ring groove 67 ... Engaging groove 70 ... Valve member 71 ... Valve plate portion 72 ... Seal packing 73 ... Rectangular groove 75 ... Shaft cylinder portion 75a ... Extract passage 76 ... Seal packing 77 ... Rib 78 ... Valve rod 79 ... Spring 80 ... Valve head 81 ... Passage opening and closing packing 82 ... Pin 82a ... Umbrella portion 82b ... Valve rod 82c ... Opening 83 ... Bearing protrusion 84 ... Bearing 85 ... Seal packing 90 ... Cylindrical member 91 ... Notch Groove 92 ... Bottom partition wall 93 ... Chamber 94 ... Large opening 95 ... Small opening 96 ... Guide rail 97 ... Stopping member 98 ... Step

Claims (4)

  A beverage container; and a stopper body attached to the opening of the beverage container, the stopper body opening or shutting off the interior and exterior of the beverage container, a liquid passage for pouring the contents, and An inside plug having a passage for releasing the pressure in the beverage container, and when the valve member is opened, the valve member first opens the passage for releasing the pressure, and then opens the liquid passage. Beverage container stopper structure.   The means for releasing the pressure first and then opening the liquid passage are a cylindrical protrusion at the lower end of the liquid passage and a groove provided on the upper surface of the valve member. Beverage container stopper structure.   First, the means for releasing the pressure, and then the means for opening the liquid passage are a cylindrical member provided at the lower end of the inner plug and into which the valve member is fitted, and a notch provided on the inner peripheral surface of the cylindrical member. The stopper structure for a beverage container according to claim 1, wherein the stopper structure is a groove.   4. The stopper structure for a beverage container according to claim 1, wherein the passage for releasing the pressure communicates forward from a rear side surface of the stopper main body through an annular groove on the inner stopper upper surface.

Images