JP2011251706A - Lid structure of beverage container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To raise operability from the beverage container side by being equipped with an unlocking preventing member constituting a simple and unbulky locking mechanism for preventing an unprepared unlocking on cooperating with a locking member on the beverage container side with a good appearance.SOLUTION: A lid structure of a beverage container is characterized in that the lid structure is adopted to a beverage container 1 provided with a locking member 6 on a front part of the upper end part with a spouting opening 2 which locks a lid 4 to a closed condition when the lid is closed and can release this locking, and the lid structure forms a single swing lid 4 which is opened and closed by raising and being laid down by using a hinge shaft 3 on the back side of the spouting opening 2 of the beverage container as a center, and includes the unlocking preventing member 8 which can prevent the unlocking operation of the locking member 6 at a predetermined position and can release this prevention by retreating from the predetermined position at the front part of the free end part 4a, and provides a lid cover 9 for covering the outer surrounding including the front part of a movable region S2 except the operating region S1 of the unlocking preventing member 8 at the front part of the single swing lid 4.

Description

  The present invention relates to a lid structure for a beverage container, and is provided with a one-sided lid that opens and closes around a hinge axis on one side of a spout that allows direct drinking or pouring of a beverage container to close and open the spout. None, the present invention relates to a lid structure for a beverage container which is locked in a closed position by a locking mechanism between a free end side and a beverage container side and which is unlocked.

  Such a lid structure of a beverage container is already known from Patent Documents 1 and 2 listed below. The single-opening lid disclosed in Patent Document 1 is provided at its free end with a locking member that elastically engages with the engaging portion on the beverage container side when the lid is closed, and an outer surface of the locking member. The lock mechanism comprised with the lock release member which operates a lock member so that engagement to the engaging part of a member may be released, and cancels | releases a lock | rock is equipped. Both the locking member and the unlocking member are overlapped in a bowl shape, and are supported so as to be able to move back and forth by a predetermined stroke in a bowl-shaped recess formed at the front part of the top surface of the one-sided lid and the outer peripheral surface of the peripheral wall. This stroke is the amount of movement necessary for the lock member to engage with the engagement portion on the beverage container side and release the engagement, and the lock member is the engagement portion on the beverage container side on the one-sided lid. The spring is urged by a spring so that it is always in the engagement position, and the unlocking member is interlocked with this.

  As a result, the engaging claw of the lock member comes into contact with the engaging portion on the beverage container side when the lid is closed, and the amount of meshing is increased while being pushed backward by the engaging portion against the spring, and the closing is completed. At this position, the lock member is returned to the lock position by the biasing of the spring together with the lock release member, and the engaging claw is automatically engaged with the engaging portion to be in the locked state. In this locked state, when the lock release member is operated to the rear side and the lock member is retracted, the engagement claw is disengaged from the engagement portion on the beverage container side, so the lock member locks the single-open lid to the closed position. Is released. The unlocking operation of the unlocking member is a one-push operation performed by pushing the portion discharged to the front part of the peripheral wall of the one-sided lid backward. Furthermore, the top surface of the one-sided lid is provided with an unlocking prevention member that prevents the unlocking operation of the unlocking member by moving left and right, or cancels the prevention so that inadvertent unlocking is not performed. ing.

  The single-open lid disclosed in Patent Document 2 has an engaging portion with a locking mechanism on the beverage container side at its free end, and elastically engages with an engaging claw of the locking member on the beverage container side when the lid is closed It is automatically locked in the closed position. For this purpose, the lock member is provided on the upper side of the beverage container so as to rotate a predetermined stroke around a horizontal axis. This stroke is the amount of rotation necessary for the lock member to engage with the engagement portion on the beverage container side and release the engagement, and the lock member is the engagement portion on the one-sided lid on the beverage container side. The engagement claw is biased by a spring so as to have a deviation behavior on the rear side so that it is always in the engagement position. As a result, when the lid is closed, the engagement portion on the side of the one-sided lid comes into contact with the engagement claw of the lock member, and the engagement claw of the lock member is once pushed back to the engagement portion against the spring. While the engagement amount is increased, the lock member is returned to the lock position by the urging of the spring at the closing completion position, and the engagement claw is automatically engaged with the engagement portion to be locked. In addition to this, an unlocking member that releases the locked state of the one-sided lid to the closed position by the locking member is provided so as to be able to move up and down a predetermined stroke on the outer surface of the locking member. In this stroke, the unlocking member is stretched from the beverage container side in the upward movement position to push the tail end of the locking member to the rear part so that the lock cannot be released. It is the amount of movement for moving up and down between the unlocking position where it can move downward until the tension is eliminated and the tail end of the lock member can be pushed. Therefore, also in this case, the unlocking operation by the unlocking member is a one-push operation after the unlocking member is moved down.

  On the other hand, the single-sided lid disclosed in Patent Document 1 has the top surface except the range covered by the lock mechanism, while the single-sided lid disclosed in Patent Document 2 has the entire top surface exposed as its own molding surface. Yes.

JP 2008-222238 A JP 2006-158729 A

  However, the exposed area as the molding surface of the single-opening lid top surface described in Patent Documents 1 and 2 is integrally molded with an inner lid wall that closes the spout on the back surface of the top plate, an inner lid mounting wall, or the like. Then, sink marks occur on the exposed molding surface of the top surface, and the appearance is deteriorated. If it tries to avoid this, a design freedom will fall.

  Moreover, since the lock mechanism described in Patent Documents 1 and 2 is provided with the lock member and the lock release member being overlapped with each other, it is bulky and uses the space of the single-open lid as disclosed in Patent Document 1. If it is provided, it will not protrude to the outside, but it will be pushed and operated at the front of the peripheral wall of the one-sided lid, so it is too far to easily push with one finger holding the beverage container It is not easy. In addition, since it is necessary to perform the unlocking prevention member that can be unlocked by the unlocking member on the top surface of the one-sided lid, both hands are required, which impedes speedy use.

  In view of such a point, the present invention is equipped with a nice appearance of an unlocking preventing member that constitutes a simple and low-profile locking mechanism that prevents inadvertent unlocking in cooperation with a locking member on the beverage container side, An object of the present invention is to provide a lid structure for a beverage container that enhances operability from the beverage container side.

  In order to achieve the above object, the lid structure of the beverage container according to the present invention is locked at the front end of the upper end portion having a spout for direct drinking and / or pouring when the lid is closed. And is applied to a beverage container provided with a lock member that can release the lock, and forms a single-open lid that is opened and closed around a hinge shaft on the rear side of the beverage container outlet, and has a free end. A locking release preventing member that moves to prevent the unlocking operation of the locking member at a predetermined position and moves away from the predetermined position to release it. A lid cover is provided for covering the outer periphery including the front of the movable range excluding the operation range of the unlocking prevention member.

  In such a configuration, only the locking member is positioned on the beverage container side, and the one-sided lid is locked to the closed state when the lid is closed, and the locking member is locked on the beverage container side. The lock is released simply by performing the release operation. In addition, the one-sided lid can be unlocked by unlocking the lock member as a movable part and moving only by moving to the front end of the free end. By preventing the lock release, the lock member can be prevented from being inadvertently unlocked. Furthermore, the lid cover covers the outer periphery including the front of the movable range excluding the operation range of the unlocking prevention member of the single-open lid, and the appearance can be simply adjusted without exposing the surface state and form inside the lid cover.

  In the above, the lid cover may further cover all or part of the top surface of the single-open lid from the movable range excluding the operation range of the unlocking prevention member at the front of the single-open lid.

  In such a configuration, in addition to the above, a single lid cover can continuously cover the movable range excluding the operation range of the unlocking prevention member at the front of the single-open lid and the top surface of the single-open lid. The top surface of the one-sided lid can be decorated with a simple appearance without exposing the surface state and form.

  In the above, the unlocking prevention member further moves up and down on an arc trajectory curved upward toward the rear side to release the unlocking prevention and the prevention, and the lid cover has a shape along the unlocking prevention member. can do.

  In such a configuration, in addition to the above, the unlocking prevention member further has an arc trajectory curved from the beverage container side, that is, the finger of the hand holding the beverage container, in particular the thumb, upwardly toward the rear side. It is possible to move up and down by a natural stretching and pulling action along the axis, thereby preventing the unlocking and releasing the blocking, and the lid cover and the front part of the one-sided lid can be formed along the outer circumference of the arc locus.

  According to the lid structure of the beverage container of the present invention, when the single-open lid is closed, it is locked in the closed state by the lock member, which is a movable part on the beverage container side, and the spout is kept closed. Further, the unlocking operation of the lock member from the beverage container side allows the single-open lid to be unlocked to the closed state and open the spout for direct drinking or pouring. In addition, the unlocking prevention member which is a movable part equipped in the front part on the side of the one-opening lid is set to a predetermined position, and the unlocking of the locking member can be prevented by a moving operation for retracting from the predetermined position, and this prevention can be released, When the lock is not used, it is possible to prevent the lock member from being unlocked due to mischief or inadvertent external force by keeping the lock unlocking state. Furthermore, a locking mechanism that is safe to use, simple and inexpensive, and that is provided with one movable part for each of the beverage container and the one-sided lid, is configured to be low. Moreover, the lid cover covers the outer circumference including the front of the movable range excluding the operation range of the unlocking prevention member of the single-open lid, and the degree of freedom in design is obviated by regulating the surface condition and form due to the inside of the lid cover not being exposed. While improving the appearance, the appearance can be simply arranged, and the texture of the independent members, the difference in color tone, etc. can be decorated and the product value can be increased.

  In addition to the above, a single lid cover can continuously cover the movable range excluding the operation range of the unlocking prevention member at the front of the single-open lid and the top surface of the single-open lid. However, it is possible to simplify and decorate the exterior by arranging it in a wider area from the front of the one-sided lid to the top, while increasing the degree of design freedom by eliminating the need for surface conditions and forms that are not exposed. it can.

  In addition to the above, the unlocking prevention member further includes a natural extension along the arc direction curved from the beverage container side, that is, the finger of the hand holding the beverage container, particularly the thumb, upwardly toward the rear side. It can be easily moved up and down by the attraction operation to prevent the unlocking and the blocking, and also reduces the bulkiness of the front part of the lid. Moreover, the bulkiness of the front part can be reduced by forming the lid cover and the front part of the one-sided lid along the outer circumference of the arc locus.

It is sectional drawing and the front view which show one specific example of the drink container which employ | adopted the lid structure which makes the single opening lid which concerns on this Embodiment in a lid closed state. It is a perspective view of a lid closed state and a lid open state in which the beverage container side bottle cap on the beverage container side is shown. A perspective view of a lid closed state in which a single lid of the beverage container is mounted on a bottle stopper on the side of the beverage container and the lid cover is removed upward, a perspective view showing the lid cover turned upside down, a lock member, an unlocking prevention member FIG. 4 is an exploded perspective view showing a support member of the lock release prevention member.

  Hereinafter, the lid structure of a beverage container according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3 for the understanding of the present invention. However, the following description is a specific example of the present invention, and does not limit the content of the claims.

  As shown by the solid line in FIG. 1, the lid structure of the beverage container according to the present embodiment is in a closed state when the lid is closed at the front of the upper end portion having the spout 2 that can be directly drunk and / or poured out. One-side opening that is applied to a beverage container 1 provided with a lock member 6 that is locked and can be unlocked, and is opened and closed around a hinge shaft 3 on the rear side of the spout 2 of the beverage container 1. The unlocking prevention member 8 which forms the lid 4 and prevents the unlocking operation of the locking member 6 at a predetermined position at the front portion of the free end 4a, and moves so as to be retracted and released from the predetermined position. The lid cover 9 is provided to cover the outer periphery including the front part of the movable area S2 excluding the operation area S1 of the unlocking prevention member 8 at the front part of the one-sided lid 4. Thereby, only the locking member 6 is located on the side of the beverage container 1, and the one-sided lid 4 is locked in the closed state by the locking member 6 engaging when the lid is closed. The lock is released simply by unlocking on the side. Further, the single-open cover 4 can be prevented from unlocking the locking member 6 only by moving the locking release preventing member 8 serving as a movable part in the front part of the free end 4a. The lock member 6 can be prevented from being inadvertently unlocked by preventing the lock release. Further, the lid cover 9 covers the outer periphery including the front portion of the movable range S2 excluding the operation range S1 of the unlocking prevention member 8 of the single-open lid 4, and the appearance can be obtained without exposing the surface state and form inside the lid cover 9. It is simply arranged.

  As a result, when the one-sided lid 4 is closed, it is locked in the closed state by the lock member 6 which is a movable part on the beverage container 1 side, and the spout is kept closed. Further, the unlocking operation of the lock member 6 from the beverage container 1 side allows the single-open lid 4 to be unlocked to the closed state, so that the spout 2 can be opened and used for direct drinking or pouring. Further, the unlocking prevention member 8 which is a movable part provided in the front part on the side of the one-sided lid 4 is set to a predetermined position, and the unlocking of the locking member 6 is prevented by a moving operation for retracting from the predetermined position. When the lock member 6 is not in use, it is possible to prevent the lock member 6 from being unlocked due to mischief or inadvertent external force. In addition, a lock mechanism 11 that is safe to use, simple, and inexpensive, is configured to be bulky by simply providing a movable part for each of the beverage container 1 and the one-sided lid 4. Moreover, the lid cover 9 covers the outer periphery including the front part of the movable area S2 excluding the operation area S1 of the unlocking prevention member 8 of the single-open lid 4, and the surface state and the form are regulated by the inside of the lid cover 9 not being exposed. While improving the degree of freedom of design as unnecessary, it is possible to decorate with simple appearance, decorating materials such as metal and resin of independent members, texture using surface processing, unification and difference of color tone by coloring The product value can be increased.

  Specifically, as shown in FIGS. 1 and 2, a support shaft 10 is provided at the front of the upper end having a spout 2 that can be directly drunk and / or poured out so as to lock the lid closed when the lid is closed. 1 is applied to a beverage container 1 provided with a lock member 6 biased by a spring 5 from a lock release position indicated by a phantom line in FIG. 1 to a lock position indicated by a solid line in FIGS. A free-end portion is urged in the opening direction by a vine spring 30 provided around the hinge shaft 3, with a one-sided lid 4 that opens and closes around the hinge shaft 3 on the rear side of the upper end of the container 1. 1a and 2b, the engagement portion 7 for elastically engaging the tip engagement claw 6a of the lock member 6 on the beverage container 1 side when closed with the lid shown in FIGS. The unlocking movement in which the locking member 6 is disengaged from the engaging part 7 by the pushing of the tail end part 6b. And a lock release preventing member 8 which moves to be released from the back by releasing it from the back of the tip engaging claw 6a as shown in FIG. A lid cover 9 is provided to cover the outer periphery including the front part of the movable area S2 excluding the operation area S1 of the unlocking prevention member 8 at the front part of the opening lid 4.

  As a result, the locking member 6 is positioned on the beverage container 1 side by being spring-biased around the support shaft 10, and the one-sided lid 4 is closed by the locking member 6 engaging with the engaging portion 7 when the lid is closed. In addition, the lock is released simply by pushing the tail end 6b of the lock member 6 on the beverage container 1 side. Further, the single-open cover 4 can be prevented from unlocking the locking member 6 only by moving the locking release preventing member 8 serving as a movable part in the front part of the free end 4a. The lock member 6 can be prevented from being inadvertently unlocked by preventing the lock release. Further, the lock release preventing member 8 can be positioned without interfering with the back portion of the engaging claw 6a of the lock member 6 only by closing the one-sided lid 4 at the lock release preventing position, thereby preventing the lock release. There is no problem with the unlocking prevention function by urging to the unlocking prevention position side, and it is only necessary to perform an operation for releasing the unlocking prevention, and the operation for preventing the unlocking can be omitted.

  Therefore, only by providing the static engagement part 7 in the front part of the free end part 4a of the one-sided lid 4 and closing the lid, the front end engagement claw 6a of the lock member 6 which is a movable part on the beverage container 1 side, It is automatically locked in the closed state by engagement, and the locking member 6 is disengaged from the engaging portion 7 by a simple operation of pushing the tail end portion 6b from the beverage container 1 side, and is opened separately. The lock to the closed state of the lid 4 can be released. Further, the unlocking prevention member 8 which is a movable part provided at the front part of the free end 4a on the side of the one-sided lid 4 is positioned on the back part of the tip engaging claw 6a of the lock member 6 from the beverage container 1 side, and is retracted. The unlocking of the lock member 6 can be prevented by this simple movement operation, and this prevention can be released.

  Further, the lid cover 9 is configured so that the movable cover S2 excluding the operation range S1 of the unlocking prevention member 8 at the front portion of the free end 4a of the single-opening lid 4 is shown in FIGS. It may cover all or part of the surface. Accordingly, the single lid cover 9 continuously covers the movable area S2 excluding the operation area S1 of the unlocking prevention member 8 at the front of the free end 4a of the single-open cover 4 and the top surface of the single-open cover 4. The top surface of the single lid 4 can be decorated with a simple appearance without exposing the surface state and form. Accordingly, the single lid cover 9 continuously covers the movable range S2 excluding the operation range S1 of the unlocking prevention member 8 at the front of the single-opening lid 4 and the top surface of the single-opening lid 4, and the single-opening lid 4 It is possible to simplify and decorate the appearance by adjusting the appearance to a wider area from the front of the single-sided lid to the top surface while increasing the degree of freedom of design by eliminating the need for surface conditions and forms that do not expose the surface. it can. In this sense, it is preferable to provide a top surface area 9a that covers a wider area of the front surface and top surface of the single-open lid 4 that is easily noticeable. However, if the width of the top surface is covered up to the front portion of the single-open lid 4, the individuality of the appearance is impaired. Therefore, as shown in FIG. 1 (b), the front view width B1 of the front area 9b of the lid cover 9 is about 1/3 of the front view width B2 of the single-open lid 4, and this is the lock on the beverage container 1 side. By making it common with the front view width of the member 6, a unique appearance that can emphasize the position of the locking mechanism 11 in the circumferential direction in the beverage container 1 and the one-sided lid 4 is obtained. Further, the lock member 6 and the lock release preventing member 8 are widened so that the strength increase, the locking force, and the lock release preventing force can be sufficiently exerted, and it is possible to prevent premature rattling and a decrease in life.

  Further, the lock release preventing member 8 receives the guidance of the bending guide 12 shown in FIGS. 3A, 3B, 3D, and the like, so that FIGS. 1A, 2A and 3A are used. (B) As shown in (c), it moves up and down on an arc trajectory curved toward the rear side upward to release the lock release prevention and this prevention, and the lid cover 9 extends along the lock release prevention member 8. It can be a shape. As a result, the unlocking preventing member 8 is naturally stretched along the arc locus curved from the beverage container 1 side, that is, the finger of the hand holding the beverage container 1, particularly the thumb, upwardly toward the rear side. It can be moved up and down by an attracting operation to prevent the unlocking and the blocking, and the front part of the lid cover 9 and the one-sided lid 4 can be formed along the outer circumference of the arc locus. Therefore, the unlocking prevention member 8 can be easily moved up and down by natural stretching and attraction operation along the arc trajectory of the finger of the hand holding the beverage container 1, particularly the thumb, curved upward and rearward. The lock release can be prevented and the blockage can be released, and the front cover can be reduced by forming the lid cover 9 and the front part of the one-sided lid 4 along the outer circumference of the arc locus. Further, the front part shape of the single-open lid 4 in which the bulkiness is reduced is curved upward to the rear side along the arc trajectory of the unlocking prevention member 8 and rises up, and the top surface is rounded and smoothly connected. As disclosed in Patent Document 1, a three-dimensional solid curved surface with no overhang or sharpness at the front portion can be obtained.

  By the way, the beverage container 1 employs a bottle 21 having a metal vacuum double structure, and is provided so that the bottle mouth 21a at the upper end of the bottle 21 can be put on and removed from above to provide the spout 2. A spout 2 is formed in the spigot 22 in combination with the plastic splicer 22 and a single lid 4 for opening and closing the spout 2 is connected to the rear side of the spout 2 by a hinge shaft 3. Yes. Here, in this embodiment, the spout 2 having the spout 2 attached so as to cover the bottle mouth 21a of the bottle 21 and the spout 2 around the hinge shaft 3 on one side of the spout 22 are provided. A single-opening lid 4 that opens and closes, and a locking member 6 that locks the single-opening lid 4 in a closed position and can release the lock, and locks the locking member 6 in front of the free end 4a of the single-opening lid 4. An unlocking preventing member 8 is provided which prevents the releasing operation at a predetermined position and moves so as to be retracted and released from the predetermined position. As described above, the unlocking preventing member 8 is shown in FIG. As shown in FIG. 1 (a), FIG. 2 (a), FIG. 3 (a), (b), and (c) by receiving guidance from the bending guide 12 shown in a), (b), and (d), Along the outer wall of the single-sided lid 4 that does not require the lid cover 9 on the arc trajectory curved toward the rear side. Vertical movement to Te also provides a bottle stopper which is adapted to release the blocking and unlocking blocking action such as described above in a range commensurate with these constituent requirements, be effective.

  The bottle stopper according to the present embodiment will be described in further detail. As shown in FIG. 1, the stopper 22 has a spout 2 and a fitting wall 24 is screwed onto the inner peripheral screw 23 of the bottle mouth 21a to be attached and detached. A resin-made stopper body 22a to be mounted so as to be able to be made, and a resin-covered cover wall that covers the outer periphery of the bottle mouth 21a by being integrated by a fitting portion 25 around the base of the spout 2 of the stopper body 22a. 21b. The plug body 22a and the cover wall 21b may be integrated by high frequency welding, and even if they are integrated, the entire surface is exposed, so that the careability is not impaired. However, in place of integration, care can be improved as a combination that can be attached and detached, such as screws and elastic fitting. The spout 2 extends upward from the fitting portion 25 with the cover wall 21b of the plug body 22a, and becomes higher from the rear to the front as shown in FIGS. 1 (a) and 2 (b). There is a mouth on the raised front edge 2a so that it can be directly drunk and can be poured out from the front edge 2a. Further, the spout 2 has a tray 26 that is recessed toward the fitting wall 24, and an outlet 27 that is offset from the axial center of the plug body 22 to the front side is formed in a part of the bottom of the tray 26. The outlet 27 restricts the outflow of the beverage, receives it into the receiving tray 26, guides it for a long distance to the front edge 2a of the outlet 2, and allows it to be directly drunk and poured out without any disturbance.

  Corresponding to such a spout 2, the top plate 4 b of the single-open lid 4 is covered with the lid cover 9 and is not exposed and does not affect the external appearance, as shown in FIG. 29 is formed integrally with a plug portion 28 that protrudes and enters the vicinity of the outlet 27 of the tray 26, and the seal packing 31 that is put on the plug portion 28 is provided in the outlet 27 when the lid is closed. And the outlet 27 is closed in a sealed state. For this purpose, the seal packing 31 is fitted into the inner plug portion 28 from below and forms a hollow crimping portion 31b extending downward from the inner flange portion 31a received by the lower end of the inner plug portion 28 in a dome shape, The outlet 27 is elastically pressure-bonded and closed by the hollow pressure-bonding portion 31b. Further, the seal packing 31 is covered to the base side of the inner plug portion 28 through the downward stepped portion 28a in the middle of the inner plug portion 28, and the stepped portion 28a also receives the pressure reaction force to the outlet 27 of the hollow crimping portion 31b. At the same time, the flange crimping portion 31c at the upper end is pressed against the opening of the spout 2 with a predetermined pressure contact allowance so that the opening of the spout 2 is also closed. Therefore, after the beverage container 1 is tilted forward and the beverage is directly drunk or poured out, the beverage is leaked from the spout 2 to the outside even if the beverage remains in the tray 26 when the single-open lid 4 is closed. Never leave.

  As shown in FIGS. 1, 2, and 3A, the lock member 6 of the lock mechanism 11 is disposed in a protective frame 32 formed on the front side of the cover wall 21b of the plug body 22 for protection. It is supported by the support shaft 10 between the side walls of the frame 32, and is damaged when it is unlocked due to an inadvertent unlocking external force when the beverage container 1 falls or cannot be unlocked in the unlocking prevention state. Can be prevented.

  The lock release prevention member 8 of the lock mechanism 11 can be supported and provided between one or both of the one-sided lid 4 and the lid cover 9. In the illustrated example, as shown in FIG. 3A, it is supported and guided by the above-described curved guide 12 provided on the side of the one-sided lid 4. The curved guide 12 may be integrally formed with the one-sided lid 4, but the shape is complicated and difficult to mold. Therefore, as shown in FIG. 1, FIG. 2 (a), and FIG. 3 (a) at the front portion of the free end portion 4a of the single-opening lid 4, the longitudinal direction is continuous with the upper end open portion of the protective frame 32 of the plug body 22. 3 (a), 3 (b), and 3 (d) are formed in the engaging recess 34, which is shown in FIG. As shown in FIG. 2, the curved guide 12 is integrally formed on the left and right sides of a resin support member 35 in which the engaging projections 35a on both the left and right sides are forcibly fitted. Correspondingly, the unlocking prevention member 8 is formed with curved grooves 8d on the left and right sides of the lock release preventing member 8 that fit to the left and right curved guides 12 so as to slide up and down. The left and right curved guides 12 may be formed in opposite directions, but in the illustrated example, they are formed so as to face each other. Accordingly, the left and right curved grooves 8d are formed to open in opposite directions.

  As shown in FIGS. 1 (a) and 3 (d), the support member 35 is integrally formed with a resin spring piece 35b that is folded from the upper side to the lower front side at an intermediate position between the left and right curved guides 12. A click stopper 35c formed integrally with the lower end of the resin spring piece 35b is brought into pressure contact with the back surface of the lock release preventing member 8 supported by fitting the curved groove 35b to the curved guide 12 as shown in FIG. As shown in FIG. 1, the unlocking prevention member 8 overlaps with the back of the tip engaging claw 6 a of the locking member 6 to prevent the unlocking operation of the locking member 6. The engagement protrusion that engages under the click stopper portion 35c and engages with the click stopper portion 35c at the upward movement position where the overlap with the tip engagement claw 6a shown in FIG. A portion 8a is provided.

  As a result, each time the lock release preventing member 8 moves up and down between the unlocked release position that has moved down and the blocked release position that releases the unlock release that has moved up, the engaging convex portion 8a of the support member 35 The click stopper portion 35c is moved away by using the elasticity of the resin spring piece 35b, and a switching feeling is obtained by receiving an appropriate elastic resistance in the switching movement between the unlocking prevention position and the prevention releasing position. Both the switching side to the unlocking prevention position and the switching side to the blocking release position can be stabilized with an elastic force that does not give excessive resistance to the switching operation. At the same time, when the unlocking prevention member 8 is excessively moved to the unlocking prevention position side, that is, to the downward movement side, the lower end 8b of the unlocking prevention member 8 overlaps the back portion of the tip engaging claw 6a of the lock member 6. In some cases, excessive movement to the blocking release position side, that is, the upward movement side is controlled by contacting the upward stepped portion 6c formed on the back portion of the locking member 6, and the operation formed on the back surface of the locking release blocking member 8 The portion 8c is regulated by contacting the upper edge of the operation window 9c formed on the lid cover 9 so as to be exposed forward so that the operation portion 8c can be moved up and down.

  As an assembling procedure, the support member 35 and the lock release prevention member 8 supported by the support member 35 can be handled by attaching the lid cover 9 after the single-open lid 4 is installed, and thus the completed single-open lid 4 can be handled. Is connected to the plug body 22 by the hinge shaft 3, the assembly is simplified.

  As shown in FIGS. 1 (a) and 2 (a), the lid cover 9 is fitted from the outside to a recessed step portion 41 provided on the top surface of the one-sided lid 4 and the accommodating recess 33 connected thereto. is there. For this fitting, the lid cover 9 has a peripheral wall 9d that is shortly folded inward to fit the peripheral wall of the housing recess 33 and the stepped portion 41 around the top surface area 9a and the front surface area 9b. ) And (c), the engaging ridges 9e are integrally formed on the outer peripheral side of the top surface area 9a of the peripheral wall 9d and on the rear part, and are forcibly fitted into the engaging concave portions 41a formed on the peripheral wall of the stepped portion 41. The hook portion 9f formed at the lower end of the front area 9a of 9d is forcibly fitted from the front side to the lower end edge 33b shown in FIG.

  INDUSTRIAL APPLICABILITY The present invention can be practically used in a single-open lid of a beverage container, and can be equipped with a nice appearance of a lock release prevention member that realizes a low-profile lock mechanism that prevents inadvertent unlocking in cooperation with a beverage container side lock member. The operability from the beverage container side is also improved.

DESCRIPTION OF SYMBOLS 1 Beverage container 2 Outlet 3 Hinge axis | shaft 4 Single opening lid 4a Free end part 5 Spring 6 Lock member 6a Tip engagement claw 6b Tail end part 7 Engagement part 8 Unlocking prevention member 8c Operation part 9 Cover cover 9a Top surface area 9b Front region 10 Support shaft 11 Lock mechanism 21 Bottle 21a Bottle port 22 Plug body 26 Receptacle 27 Outlet port 28 Inner plug portion 31 Seal packing 33 Recess

Claims (3)

  Applicable to beverage containers provided with a lock member that locks the lid closed when the lid is closed and the front of the upper end with a spout that can be directly drunk and / or poured out. A single-open lid that opens and closes around a hinge shaft on the rear side of the beverage container spout, and prevents the locking member from being unlocked at a predetermined position in front of the free end, and A cover for covering the outside including the front part of the movable range excluding the operation range of the unlocking prevention member at the front of the one-sided lid A lid structure for a beverage container, comprising:   The lid structure for a beverage container according to claim 1, wherein the lid cover covers all or part of the top surface of the single-open lid from a movable range excluding an operation range of the unlocking prevention member at the front of the single-open lid.   The unlocking prevention member moves up and down on an arc trajectory curved toward the rear side upward to release the unlocking prevention and the prevention, and the lid cover has a shape along the unlocking prevention member. The lid structure of the beverage container according to any one of 2.