JP3190286U - Beverage container plug device - Google Patents

Abstract

To provide a stopper device for a beverage container provided with a lock mechanism that can be made compact in size and can cope with variations in dimensional accuracy of each member.
A stopper portion including an engagement protrusion 21 for restricting the swing of a swingable lock member including an engagement claw 15 is provided, and the stopper portion is disposed on the inner side of the lock member to lock the plug body. The mechanism 6 is guided by the guide shaft 31 so as to be vertically slidable independently of the lock member. A central window 18 that allows the stopper to be operated is formed at an intermediate position in the vertical direction of the lock member, and an operating portion 19 that allows the stopper to be operated from the outside through this central window is formed integrally with the stopper. Since the stopper part is arranged inside the lock member independently, it can cope with the variation of each dimensional accuracy, and the stopper part can be operated through the central window of the lock member. Can be made compact.
[Selection] Figure 10

Description

  The present invention includes a plug body that is attached to the outer periphery of the mouth of the container body, a single-open lid that opens and closes the spout of the plug body, and a lock mechanism that locks the lid in a closed position with respect to the plug body. It is related with the stopper device of a beverage container provided with.

  In this type of beverage container plug device, the lock mechanism that locks the lid body in the closed position with respect to the plug body basically engages with the tip of the lid body to lock the lid body in the closed position. A rockable lock member and a stopper for restricting the lock member to maintain the lock member in a locked posture are provided.

  Conventionally, various modes of disposing the lock member and the stopper portion in the lock mechanism have been disclosed.

  In patent document 1, the stopper part is arranged on the lower side of the lock member, the stopper part is slid in the vertical direction, and the upper end of the stopper part is brought into contact with the lower end of the lock member, thereby preventing the lock member from swinging. Is disclosed.

  In Patent Document 2, the stopper part is inserted into the upper part of the lock member from above the lock member, the stopper part can be moved up and down on the upper front surface of the lock member, and the opening and closing operation of the lock member is locked at the upper limit of the movement of the stopper part. A mode is disclosed in which the lid can be opened together with the lock member by unlocking the opening and closing operation of the lock member by adjusting the movement of the stopper portion.

  In Patent Document 3, a stopper portion is arranged on the upper side of the lock member, the stopper portion is moved up and down with an arc-shaped restriction along the outer surface wall of the tightly-opened lid, and the lock member is engaged with the tip end by the downward movement. An embodiment is disclosed that is located on the back and prevents unlocking.

  In Patent Document 4, a stopper portion is arranged on the front side of the lock member, the stopper portion can be moved up and down, and the lock member is released from the locking posture by an operation portion that moves downward and protrudes downward from the lock member. Aspects are disclosed.

Japanese Patent No. 4143383 Utility Model Registration No. 3178720 JP 2011-251707 A JP 2011-235920 JP

  However, since the lock member and the stopper portion are arranged in the vertical direction except for Patent Document 4, the vertical direction of the lock mechanism becomes long, and there is a difficulty in downsizing.

  Further, in Patent Document 4, since the lock member and the stopper portion are arranged in the front-rear direction, the disadvantage that the arrangement of the members becomes longer in the up-down direction is solved, but the lock member and the stopper portion are in the front-rear direction. Therefore, even if the dimensions of the two are slightly different, there is a risk of hindering the cooperation between the two.

  Also, in other Patent Documents 1, 2, and 3, since the lock member and the stopper portion are linked to each other, there is a possibility that the linkage between the two may be hindered due to a slight difference in dimensions.

  An object of the present invention is to provide a plug structure having a compact lock mechanism by devising the arrangement of the lock member and the stopper portion. Another object of the present invention is to provide a plug structure that can cope with variations in dimensional accuracy between the lock member and the stopper portion.

  In order to achieve the above object, in the present invention, a cap body having a spout is screwed to the outer periphery of the mouth of the container body, and a lid that allows the spout to be opened and closed on the spout body has a hinge shaft. A lid device for a beverage container provided with a lock mechanism that is provided so as to be pivotable and capable of locking the pivot end of the lid body in a closed position with respect to the cap body. An engaging claw that removably engages with an engaging portion provided at a rotating end of the engaging portion is provided at an upper portion, and a locking posture for engaging the engaging portion with the engaging claw and the engaging portion from the engaging claw are provided. A locking member capable of swinging around a horizontal axis between the unlocking posture to be released, and a stopper portion for restricting the rocking of the locking member in the locking posture, the stopper portion locking the plug body It is arranged on the inner side of the member, and the upper and lower sleeves are independent of the lock member on the plug body. A central window that allows the stopper portion to be operated is formed in the lock member at an intermediate position in the vertical direction, and an operation portion that allows the stopper portion to be operated from the outside through the central window is provided in the lock member. It is characterized by being integrally formed with the stopper portion.

  In the said structure, since the stopper part is arrange | positioned inside a locking member in a stopper main body, it can make compact rather than a locking member and a stopper part being arranged in an up-down direction. Moreover, since the operation part of the stopper part is provided through the central window of the lock member, the stopper part can be reliably operated from the outside of the lock member. Moreover, since the lock member pressing operation portion is disposed below the operation portion of the stopper portion, the lock member is released from being unlocked by the downward movement of the stopper portion, and the lock member is swung by the pressing operation of the lock member pressing operation portion. A series of operations up to can be performed with one touch.

  In addition, the stopper part can be moved in the vertical direction independently of the lock member, and the lock member and the stopper part operate independently. To do.

  As described above, according to the present invention, since the stopper portion is arranged independently inside the lock member and can be operated through the central window of the lock member, the vertical length of the entire lock mechanism is determined by the lock member and the stopper portion. Are smaller than arranging them in the vertical direction, and compactness is possible. Moreover, since the stopper portion is arranged independently of the lock member, it is possible to cope with variations in dimensional accuracy.

It is a perspective view which shows the upper part of the drink container which shows the closed state of a cover body. It is a front view of FIG. It is a perspective view which shows the upper part of the drink container which shows the open state of a cover body. It is side surface sectional drawing of the plug main body provided with the locking mechanism of a lock attitude | position. It is side surface sectional drawing of the plug main body provided with the lock mechanism of a lock release attitude | position. It is a perspective view of the spigot main body which removed the cover body and the lock mechanism. It is a front view of the plug main body of FIG. It is BB sectional drawing of FIG. It is the perspective view which looked at the locking member accommodation chamber of the spigot body from the lower side. (A) is sectional drawing which shows the lock attitude | position of a lock member, (b) is sectional drawing which shows the lock release attitude | position of a lock member. (A) is sectional drawing which shows the engagement state of the engaging recessed part of a locking member and the engaging protrusion of a stopper part in the locking attitude | position of a locking member, (b) is the engaging recessed part and stopper of a locking member in a lock releasing attitude | position similarly. It is sectional drawing which shows the detachment | leave state with the engagement protrusion of a part. (A) is the exploded perspective view which looked at the locking mechanism from the front side, (b) is the exploded perspective view which looked at the locking mechanism from the back side, and (c) is the exploded sectional view which looked at the side of the locking mechanism.

  Embodiments of the present invention will be described below with reference to the drawings. This embodiment shows an example in which the present invention is applied to a 2 liter beverage container with a portable handle.

  As shown in FIGS. 4 and 5, the portable beverage container 1 includes a heat-insulating container main body 2 in which a space is drawn between an inner cylinder 2 a and an outer cylinder 2 b arranged outside thereof, and the container main body 2. A stopper body 3 attached to the outer periphery of the mouth at the upper end of the lid, a lid body 5 pivotally attached to the rear of the stopper body 3 via a hinge shaft 4, and a rotating end (front end) of the lid body 5 A locking mechanism 6 that can be locked in a closed position with respect to the plug body 3 is provided.

  The container main body 2 is formed in a bottomed cylindrical shape, and an opening for attaching the plug main body 3 is formed at the upper end. The inner cylinder 2a and the outer cylinder 2b constituting the container body 2 have a well-known structure made of a metal material such as stainless steel. A cylindrical shoulder member 2c made of synthetic resin is mounted on the outer periphery of the mouth of the metal container body 2. A male screw 2d for screwing the plug body 3 is formed on the upper outer periphery of the shoulder member 2c.

  The plug body 3 is an inverted bowl-shaped member made of a synthetic resin and having a top surface, and a cylindrical spout 3a is formed on the top surface so as to protrude upward. A female screw 3d that is screwed onto the male screw 2d of the shoulder member 2c is formed on the inner peripheral surface of the lower end of the plug main body 3, and these male and female screws 2d and 3d are screwed together so that the plug main body 3 is placed in the container. The body 2 is screwed to the outer periphery of the mouth at the upper end via a shoulder member 2c.

  The lid 5 is pivotally supported by the rear portion thereof via the hinge shaft 4 at the top surface portion of the plug body 3 so as to be capable of opening and closing. The lid 5 is biased in the opening direction by a coil spring (not shown) wound around the hinge shaft 4. On the inner side of the lid 5, a protruding portion 8 that is fitted inside and closes the spout 3 a is formed in a spout 3 a that is provided in a cylindrical shape.

  The lock mechanism 6 that locks the lid 5 in the closed position includes a lock member 10 that is detachably engaged with an engagement portion 9 provided at a rotation end (front end) of the lid 5, and the lock member 10 And a stopper portion 11 for restricting the rocking of the lock member 10 in the locked posture. The lock member 10 and the stopper portion 11 are housed in a housing chamber 13 surrounded by a protective wall 12 formed at the front end of the plug body 3 and the lid 5 at the front end portion of the plug body 3. That is, the lock mechanism 6 is accommodated in the accommodation chamber 13.

  As shown in FIGS. 1 and 2, the protection wall 12 faces the open end of a U-shaped wall formed of left and right side walls and a bottom wall that protrudes from the front surface of the plug body 3. And an inverted U-shaped wall formed of a left and right short side wall and an upper wall extending to the upper end of the left and right side walls. In the closed posture of the lid 5, the upper and lower side walls of the lower U-shaped wall and the upper inverted U-shaped wall are in contact with each other to form a rectangular frame-shaped protective wall 12. .

  As shown in FIG. 5, the engaging portion 9 of the lid 5 is formed by being cut into a bowl shape inside the inverted U-shaped wall of the protective wall 12.

  On the other hand, the lock member 10 is pivotally supported in the storage chamber 13 inside the U-shaped protective wall 12 via a horizontal shaft 14 so as to be swingable. The lock member 10 is a member made of synthetic resin, and includes an engaging claw 15 protruding toward the upper back surface side, and a pressing operation portion 16 for operating the lock member 10 on the lower surface side. The lock member 10 swings around the horizontal axis 14 between a locking posture in which the engaging portion 9 is engaged with the engaging claw 15 and a lock releasing posture in which the engaging portion 9 is released from the engaging claw 15. Supported as possible. The engaging claw 15 is provided so as to protrude above the U-shaped wall of the protective wall 12 and is detachably locked with the engaging portion of the lid 5.

  As shown in FIG. 12, the lock member 10 is formed with a central window 18 penetratingly formed at the upper and lower intermediate positions of the lock member at the upper and lower sides of the horizontal shaft 14. The central window 18 is formed in a rectangular shape and is formed slightly larger than the vertical stroke of the stopper portion 11. Further, the central window 18 is formed in such a size that the stopper operating portion 19 protruding to the front side of the stopper portion 11 faces from the rear to the front side, and the stopper operating portion 19 can be operated from the front side. The periphery of the central window 18 is chamfered so that the fingers can easily enter the stopper operating portion 19 side. The stopper operating portion 19 for operating the stopper portion 11 is set lower than the height of the protective wall 12 and is disposed at a position retracted from the protective wall 12.

  The lock member 10 is formed with an engagement recess 20 that engages with the engagement protrusion 21 of the stopper portion 11. The engaging recess 20 is formed in a lower open state at a protruding portion protruding to the back surface side above the central window 18 of the lock member 10 and below the engaging claw 15. The engagement protrusion 21 of the stopper portion 11 can enter the engagement recess 20. In the locking posture of the locking member 10, the engaging protrusion 21 of the stopper portion 11 and the engaging recess 20 of the locking member 10 are fitted. However, in order to allow a difference in dimensional accuracy between them, there is a gap 23 between them. Is formed to prevent contact with each other in the engaged state.

  The locking member 10 has a pressing operation portion 16 for pressing the locking member 10 on the surface side lower than the horizontal shaft 14 so as to protrude in a step shape. A coil-shaped biasing spring 26 that biases the lock member 10 in the engaging direction of the engaging claw 15 is interposed between the back surface side of the pressing operation portion 16 and the bottom surface of the storage chamber 13.

  As shown in FIG. 12, the stopper portion 11 is formed in a horizontal rectangular parallelepiped shape, and a stopper operating portion 19 for allowing the stopper portion 11 to be operated from the outside through the central window 18 of the lock member 10 is provided on the front surface. It is integrally formed with the part 11.

  An engagement protrusion 21 that can enter the engagement recess 20 of the lock member 10 is formed on the front surface of the stopper portion 11. Slide rails 27 are formed on both the left and right sides of the rear surface of the stopper portion 11 and are fitted into a pair of left and right guide walls 28 at the bottom of the storage chamber 13 as shown in FIG. It is guided to be slidable in the direction. This is because the stopper portion 11 is disposed inside the lock chamber 10 in the storage chamber 13 and is guided to the storage chamber 13 so as to be slidable up and down independently of the lock member 10.

  Further, the stopper portion 11 has a vertical hole 30 formed in the side surface so as to penetrate the stopper portion 11, and a guide shaft 31 is inserted into the vertical hole 30 from the side surface of the storage chamber 13 on the plug body side. It can only move up and down. In addition, the vertical hole 30 may be formed as a notch in a concave shape in addition to being formed through the side surface of the stopper portion 11 in the left-right direction.

  A stopper guide member 32 is provided at the bottom of the storage chamber 13 of the plug body 3 in order to maintain the stopper 11 at the upper position in the vertical movement direction. And it has the hollow 33 formed in any one of the rear end of the stopper part 11 and the guide member 32, and the convex part 34 which is formed in the other and contacts the hollow 33 elastically, The stopper portion 11 can maintain the upper posture by fitting the convex portion 34.

  In this embodiment, the convex part 34 is formed in the center of the rear surface of the stopper part 11, and the hollow 33 is formed in the guide piece of the guide member 32 so as to oppose this. In contrast to this example, a mode in which the recess 33 is formed on the rear surface of the stopper portion 11 and the convex portion 34 is formed on the guide member 32 may be adopted.

  As shown in FIG. 12, the guide member 32 is formed in a rectangular frame shape, and a guide piece 35 having a waveform in a side view is suspended from the center of the upper side thereof in a cantilevered manner. And the convex part 34 of the stopper part 11 is elastically engaged with the hollow 33 of the guide piece 35 in the upper position of the stopper part 11, and the downward movement by the dead weight of the stopper part 11 is prevented.

  As shown in FIGS. 11 and 12, an upper engaging portion 36 projects rearward from the upper side of the rectangular frame of the guide member 32, and a lower engaging portion 37 projects rearward from the lower side of the rectangular frame. Is done. These upper and lower engaging portions 36 and 37 are detachably engaged with upper and lower engaging holes 38 and 39 formed in the bottom of the storage chamber 13. Since the guide member 32 is mounted in the storage chamber 13 by the upper and lower engaging portions 36 and 37, the guide member 32 is mounted in the storage chamber 13 in a stable state.

  Hereinafter, the locking operation and unlocking operation of the single-open lid body 5 will be described. FIG. 4 shows a locked state of the one-sided lid body 5. FIG. 5 shows the unlocked state of the lid 5 and the opened state of the lid 5. 10A and 11A show the locked state of the lid 5, and FIGS. 10B and 11B show the unlocked state of the lid 5.

  In the locked state of the lid body 5 in FIG. 4, the stopper portion 11 is in the upper position, and the engagement protrusion 21 of the stopper portion 11 enters the engagement recess 20 of the lock member 10. At the upper position of the stopper portion 11, the convex portion 34 on the rear surface of the stopper portion 11 is elastically engaged with the recess 33 of the guide member 32, and the posture of the stopper portion 11 is maintained. Therefore, even if the pressing member 16 of the locking member 10 is pushed backward to swing the locking member 10, the wall surface of the engaging recess 20 of the locking member 10 hits the engaging protrusion 21 of the stopper 11, and the locking member 10 Control rocking and maintain a locked posture.

  At this time, even if the dimensional accuracy is different between the engagement protrusion 21 of the stopper portion 11 and the engagement recess portion 20 of the lock member 10 in the locked posture of the lock member 10, a gap 23 that can allow this is formed. Therefore, the engagement protrusion 21 of the stopper portion 11 and the engagement recess 20 of the lock member 10 are fitted together with a margin. Even in such an engaged state, the rotation of the lock member 10 can be sufficiently restricted, so that there is an advantage that high dimensional accuracy is not required.

  In order to unlock the lock member 10 from the locked position, the stopper operating portion 19 is moved downward by the operator's finger through the central window 18 of the lock member 10. Then, the convex portion 34 on the rear side of the stopper portion 11 is disengaged from the recess 33 of the guide member 32 by the operation force to the lower side of the stopper portion 11. The stopper portion 11 can move downward. The length of movement of the stopper portion 11 in the vertical direction is determined by the length of the vertical hole 30 in the stopper portion 11. The moving length of the stopper portion 11 in the vertical direction can also be set by the position of the upper and lower sides of the central window 18 of the lock member 10, but the vertical dimension of the central window 18 is set to the vertical moving length of the stopper portion 11. The vertical movement length of the stopper portion 11 may be distorted due to the difference in dimensional accuracy between the two. As in this example, setting according to the vertical length of the vertical hole 30 of the stopper portion 11 is preferable because it can easily cope with a difference in dimensional accuracy.

  When the stopper portion 11 is moved downward until the upper end of the vertical hole 30 contacts the guide shaft 31 of the storage chamber 13, the engagement protrusion 21 of the stopper portion 11 is disengaged from the engagement recess 20 of the lock member 10, and the lock member 10 is It can swing. When the pressing operation portion 16 of the lock member 10 is pushed rearward in this state, the lock member 10 swings around the horizontal axis 14, and the engagement claw 15 at the upper end of the lock member 10 is engaged with the engagement portion of the lid 5. Deviate from 9. When the lid 5 is unlocked, the lid 5 is rotated upward around the hinge shaft 4 by an urging force of a coil spring (not shown) to open the one-sided lid 5.

  As described above, in the present embodiment, the cap body 3 having the spout 3 c is screwed to the outer periphery of the mouth of the container body, and the lid 5 that allows the spout 3 c to be opened and closed is connected to the spout body 3. The lock mechanism 6 is provided so as to be pivotable and capable of locking the pivot end of the lid body 5 in a closed position with respect to the plug body 3. A locking posture in which an engaging claw 15 detachably engaged with an engaging portion 9 provided in the upper portion is provided at the upper portion, a pressing operation portion 16 is provided at the lower portion, and the engaging portion 9 is engaged with the engaging claw 15. A lock member 10 that can swing around the horizontal axis 14 between an unlocking posture for releasing the engaging portion 9 from the engaging claw 15 and a stopper portion that restricts the swinging of the locking member 10 in the locked posture. 11, the stopper portion 11 is disposed inside the locking member 10 of the plug body 3, The body 3 is guided so as to be vertically slidable independently of the lock member 10, and a central window 18 through which the stopper portion 11 can be operated is formed in the lock member 10 at an intermediate position in the vertical direction. An operating portion 19 that allows the stopper portion 11 to be operated from the outside is formed integrally with the stopper portion 11.

  Therefore, since the stopper part 11 is arrange | positioned inside the lock member 10 in the plug main body 3, it can make compact rather than a lock member and a stopper part being arranged in an up-down direction. Moreover, since the operation part 19 of the stopper part 11 is provided through the central window 18 of the lock member 10, the stopper part 11 can be reliably operated from the outside of the lock member 10. In addition, since the pressing operation portion 16 of the lock member 10 is disposed below the operation portion 19 of the stopper portion 11, the unlocking operation by the downward movement of the stopper portion 11 causes the pressing operation of the pressing operation portion 16 of the lock member 10. A series of operations leading to rocking of the lock member 10 can be performed with one touch.

  Further, the stopper portion 11 can be moved in the vertical direction independently of the lock member 10, that is, the lock member 10 and the stopper portion 11 operate independently, resulting in a deviation in the dimensional accuracy of both. But both work reliably. In order to operate the stopper portion 11 independently of the lock member 10, the left and right slide rails 27 on the rear surface of the stopper portion 11 are fitted to the pair of left and right guide walls 28 on the bottom of the storage chamber 13. The part 11 is reliably guided in the vertical direction along the guide wall 28.

  The stopper portion 11 is formed with a vertical hole 30 in the vertical direction, and a guide shaft 31 from the plug body 3 side is inserted into the vertical hole 30. The stopper portion 11 is vertically moved by the vertical length of the vertical hole 30. It is possible to move to. Therefore, the stopper portion 11 is reliably guided to move up and down by the plug body 3 independently of the lock member 10.

  Further, an engaging projection 21 is provided at the upper end of the stopper portion 11 to prevent the locking member 10 from swinging in the locking posture. The engaging projection 21 is locked at the upper position in the vertical movement direction of the stopper portion 11. The engaging recess 21 can enter the lower opening engaging recess 20 formed on the back surface of the member 10, and the engaging protrusion 21 is engaged with the engaging recess 20 in the locking position of the locking member 10 and in the upper position in the vertical movement direction of the stopper portion 11. Even if the lock member 10 enters and rotates the lock member 10 around the horizontal axis 14, the engagement protrusion 21 of the stopper portion 11 abuts on the side wall of the engagement recess 20 to restrict the swing of the lock member 10.

  At this time, a gap for allowing a difference in dimensional accuracy is formed between the engagement protrusion 21 of the stopper portion 11 and the engagement recess 20 of the lock member 10 in the locked posture of the lock member 10. That is, since the engagement protrusion 21 of the stopper portion 11 and the engagement recess 20 of the lock member 10 are fitted with a margin, the swing of the lock member 10 can be sufficiently restricted, There is an advantage that high dimensional accuracy is not required.

  Further, a stopper guide member 32 for maintaining the stopper portion 11 in the upper position in the vertical movement direction is provided in the storage chamber 13 of the plug body 3, and the guide member 32 is provided behind the stopper portion 11. The lock member 10 includes a recess formed in one of the end and the guide member 32 and a convex portion formed on the other and elastically contacting the recess, and the stopper portion 11 is maintained in an upward position. The lock posture can be maintained. At this time, since either one of the stopper portion and the plug main body has a recess 33 and the other convex portion 34 are in elastic contact with each other, the stopper portion 11 can be reliably maintained in the locked posture. .

  In addition, engaging portions 36 and 37 for engaging with the plug body 3 are formed on the upper and lower portions of the back surface of the stopper guide member 32, and the guide member 32 is formed in the engagement holes 38 and 39 of the plug body 3. Removably fitted. Although the guide member 32 can be formed integrally with the plug body 3, the guide member 32 is formed separately from the plug body 3 in consideration of the formation of the recess 33 or the convex portion 34 of the guide member 32. A configuration in which the molded guide member 32 is detachably fitted into the engagement holes 38 and 39 of the plug body 3 is more advantageous in terms of molding. Further, since the guide member 32 is configured such that the upper and lower engaging portions 36 and 37 engage with the upper and lower engagement holes 38 and 39 of the storage chamber 13, the guide member 32 is mounted in the storage chamber 13 in a stable state. can do.

  Further, a protective wall 12 is formed on the lid rotating end side (front end side) of the plug body 3, and a storage chamber 13 is formed surrounded by the protective wall 12, and the lock mechanism 6 is stored in the storage chamber 13. Therefore, the members 10, 11, 19, 32, etc. of the lock mechanism 6 can be prevented from inadvertently hitting the fingers of the operator and changing their postures.

  At this time, the operation portion 19 for operating the stopper portion 11 can be formed lower than the height of the protective wall 12 and can be disposed at a position retracted from the protective wall 12. Accordingly, it is possible to prevent the operator's fingers from inadvertently hitting the operation unit 19 and operating the stopper unit 11.

  The locking member 10 includes an engaging claw 15 on the upper end side of the horizontal shaft 14, and serves as a pressing operation unit 16 that presses the locking member 10 on the surface side below the horizontal shaft 14. Since the biasing spring 26 that biases the lock member 10 in the engagement direction of the engagement claw 15 is interposed between the back surface side of the plug body 3 and the bottom wall of the accommodation chamber 13 of the plug body 3, the lock member 10 Is always urged toward the lock posture by the urging spring 26, so that the lock posture can be maintained.

  Further, since a spring (not shown) for biasing the lid 5 in the opening direction is provided on the hinge shaft 4, the lid 5 is rotated to the opening side by the spring when the lock mechanism 6 is released. The spout 3a of the cap body 3 can be exposed, and the beverage in the bottle body can be drunk with a one-touch operation.

  In addition, this invention is not limited to the said embodiment, Many corrections and changes can be added within the scope of the present invention. For example, in the above-described embodiment, an example in which the engagement recess 20 is disposed on the lock member 10 side and the engagement protrusion 21 is disposed on the stopper portion 11 side is shown as an aspect of the stopper portion. 20 may be disposed on the stopper portion side, and the engaging protrusion 21 may be disposed on the lock member 10 side.

  Moreover, although the aspect which provided the protective wall in the perimeter of the locking mechanism was illustrated in the said embodiment, a protective wall is not limited to the aspect provided in a perimeter, Various aspects, such as an aspect provided in part or an aspect which does not provide at all. The aspect of this can be employ | adopted. Moreover, in this embodiment, although the aspect which protruded the cylindrical spout 3a in the plug main body 3 was illustrated, not only this but a spout is the bowl-shaped formed in the top | upper surface recessed part of the plug main body 3. It may be a thing. Furthermore, in the said embodiment, although the 2 liter drink container was illustrated, it is needless to say that it is not restricted to this and may be a 500 ml drink container without a handle.

DESCRIPTION OF SYMBOLS 1 Portable drink container 2a Inner cylinder 2b Outer cylinder 2c Shoulder member 2 Container main body 3 Port plug main body 3a Outlet 4 Hinge shaft 5 Lid 6 Lock mechanism 8 Protrusion 9 Engagement part 10 Lock member 11 Stopper part 12 Protective wall 13 Storage chamber 14 Horizontal shaft 15 Engagement claw 16 Press operation part 18 Central window 19 Stopper operation part 20 Engagement recess 21 Engagement protrusion 23 Gap 26 Coiled biasing spring 27 Slide rail 28 Guide wall 30 Vertical hole 31 Guide shaft 32 Guide member 33 Dimple 34 Convex

Claims (10)

A cap body having a spout is screwed to the outer periphery of the mouth of the container body, and a lid body capable of opening and closing the spout is provided on the spout body so as to be rotatable via a hinge shaft. In a beverage container plug device provided with a locking mechanism capable of locking the rotating end to a closed position with respect to the plug body,
The locking mechanism is
An engaging claw that detachably engages with an engaging portion provided at a rotating end of the lid body is provided at the upper portion, a pressing operation portion is provided at the lower portion, and the lock that engages the engaging portion with the engaging claw A locking member that can swing around a horizontal axis between a posture and an unlocking posture that releases the engaging portion from the engaging claw;
A stopper portion for restricting the swing of the lock member in a locked posture;
The stopper portion is arranged on the inner side of the lock member of the plug body, and is guided to be slidable up and down independently of the lock member on the plug body.
A central window that allows the stopper portion to be operated is formed through the lock member at an intermediate position in the vertical direction, and an operation portion that allows the stopper portion to be operated from the outside through the central window is formed integrally with the stopper portion. A beverage container plug device characterized by the above.   The stopper portion is formed with a vertical hole in the vertical direction, and a guide shaft from the plug body is inserted into the vertical hole, and the stopper portion is movable in the vertical direction by the vertical length of the vertical hole. The stopper device for a beverage container according to claim 1.   An engaging projection is provided at the upper end of the stopper portion to prevent the locking member from swinging in the locking posture, and the engaging projection is located at the upper position in the vertical movement direction of the stopper portion on the back surface of the locking member. It is possible to enter the formed lower-opening engagement recess, and the engagement protrusion enters the engagement recess at the locking position of the lock member and at the upper position in the vertical movement direction of the stopper, and the lock member is moved into the engagement recess. 2. The beverage container according to claim 1, wherein even if the rotation is about the horizontal axis, the engagement protrusion of the stopper portion abuts on the side wall of the engagement recess to restrict the swing of the lock member. Plug device.   The clearance gap for accept | permitting the difference in a dimensional accuracy between the engagement protrusion of the said stopper part, and the engagement recessed part of a lock member in the lock attitude | position of the said lock member was formed. Beverage container spout device.   A stopper part guide member for maintaining the stopper part in the upper position in the vertical movement direction is provided on the plug body, and the guide member includes a rear end of the stopper part and the guide member. The cap device for a beverage container according to any one of claims 1 to 5, comprising a recess formed in any one of the above and a convex portion formed on the other and elastically contacting the recess.   The engaging part for engaging with a plug main body is formed in the upper and lower parts of the back surface of the said stopper part guide member, The said guide member was fitted in the plug main body so that attachment or detachment was possible. The stopper device for a beverage container as described in 1.   The protective wall is formed in the lid body rotation end side of the plug body, the storage chamber is formed surrounded by the protection wall, and the lock mechanism is stored in the storage chamber. The stopper device for a beverage container as described in 1.   The stopper device for a beverage container according to claim 7, wherein an operating portion for operating the stopper portion is formed lower than the height of the protective wall and is disposed at a position retracted from the protective wall.   The locking member has an engaging claw on the upper end side from the horizontal axis, and is a pressing operation part that presses the locking member on the surface side below the horizontal axis, and the back surface side of the pressing operation part and the plug body 9. The cap device for a beverage container according to claim 1, wherein a biasing spring for biasing the lock member in the engaging direction of the engaging claw is interposed therebetween.   The stopper device for a beverage container according to any one of claims 1 to 9, wherein a spring for urging the lid in the opening direction is provided on the hinge shaft.

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