JP7138978B2 - Beverage container stopper and thermos bottle equipped with the same - Google Patents

Description

TECHNICAL FIELD The present invention relates to a stopper for a beverage container and a thermos bottle having the same.

2. Description of the Related Art Conventionally, a beverage container such as a thermos bottle has a stopper that includes a lid that is connected via a hinge to a stopper that is attached to the opening of the container body. As a beverage container provided with such a stopper, there is known one provided with a locking mechanism that holds the lid in a closed state at the other end of the stopper body (see, for example, Patent Document 1).

The beverage container described in Patent Literature 1 has a locking mechanism that holds the lid rotatably attached via a hinge to the stopper attached to the opening of the container body in a closed state. . This locking mechanism is composed of an engaging member that engages with an engaging receiving portion provided on the lid, and a slide button that is attached to the outer surface of the engaging member so as to be slidable in the vertical direction. be. In this lock mechanism, when the slide button is in the upper position, the protruding piece integrally provided with the slide button abuts against the stopper provided on the stopper, and the engaging claw of the engaging member engages the lid. It is engaged with the receiving portion and closed. On the other hand, when the slide button is in the lower position, the protruding piece does not abut on the stopper, and the engaging claw of the engaging member is released from the engaging receiving portion of the lid body to open the lid.

Utility Model Registration No. 3142053

However, if the slide button protrudes outward as in the beverage container described in Patent Document 1, for example, when the beverage container is put in and taken out of a bag or the like, the slide button may come into contact with an object. It may move, and the lock mechanism may be released against the user's intention.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a stopper for a beverage container and a thermos bottle equipped with the same, which can prevent the lock mechanism from being released unintentionally. do.

In order to solve the above-mentioned problems, the present invention provides a plug body that is attached to an opening of a beverage container body, a lid body that is rotatably connected to one end of the plug body via a hinge, and and a locking mechanism for holding the lid in a closed state at the other end of the stopper body, wherein the locking mechanism engages with an engaging portion provided on the lid. an engaging piece, a sliding piece provided outside the engaging piece and slidable up and down, and a guide frame that pivotally supports the engaging piece and guides the sliding piece, The slide piece rotates together with the engagement piece when in the upper position with respect to the engagement piece, and restricts the rotation of the engagement piece when in the lower position with respect to the engagement piece. A pair of side wall portions that sandwich both side portions of the mating piece are provided, the pair of side wall portions each having projections projecting toward both side portions of the engaging piece, and the engaging piece is provided on both sides thereof. a pair of protrusions protruding from the side wall portion toward the side wall portion, and when the slide piece slides up and down with respect to the engagement piece, the protrusions climb over the protrusions and the protrusions A click feeling is generated by reaching the upper end side or the lower end side of the part .

In the beverage container stopper, it is preferable that the guide frame has a protective frame portion that abuts against the lower end surface of the slide piece when the slide piece is in the lower position with respect to the engagement piece .

In the stopper for the beverage container, the engaging piece includes a pawl portion that engages with the engaging portion provided on the lid and a shaft through which a pivotal support rod for connection with the guide frame is inserted. a shaft portion having a hole, wherein the convex portion is provided closer to the claw portion than the shaft portion, the projection portion is provided to the upper end portion side of the side wall portion, and the front surface of the slide piece. It is preferable that the operation protrusion is provided on the lower end side of the side.

The stopper of the beverage container is preferably provided in a thermos flask.

According to the present invention, in the lock mechanism, when the slide piece is in the lower position, the lower end surface of the slide piece is in contact with the protective frame of the guide frame, so that it hardly protrudes outward. Therefore, the slide piece is less likely to come into contact with any object, and it is possible to prevent the lock mechanism from being released against the user's intention.

1(a) is a perspective view of a thermos bottle provided with a stopper for a beverage container according to an embodiment of the present invention, and FIG. 1(b) is a perspective view in which the stopper is separated from the container body. (a) is a front view of the thermos bottle, (b) is a rear view, (c) is a plan view, (d) is a bottom view, (e) is a right side view, and (f) is a right cross-sectional view. (a) is a perspective view of the plug, (b) is a right side view, (c) is a front view, (d) is a rear view, (e) is a plan view, and (f) is a bottom view. (a) is a right sectional view of the stopper when the slide piece is at the lower position, and (b) is a right sectional view when the slide piece is at the upper position. (a) is a perspective view from the front side when the slide piece is positioned below the engagement piece (locked state), and (b) is a front view when the slide piece is positioned above the engagement piece (released state). , (c) is a perspective view from the back side in the locked state, (d) is a perspective view from the back side in the released state, (e) is a rear view in the locked state, (f) is the back side in the released state figure. (a) is a right side view showing a state in which the engaging piece and the slide piece are rotated, and (b) is a right sectional view when the lid body is in an open state with respect to the plug body.

A stopper for a beverage container according to one embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1(a), 1(b) and 2(a) to 2(f), the stopper of the beverage container (hereinafter referred to as the stopper 1) of the present embodiment is provided in a thermos bottle 10. As shown in FIGS. The thermos bottle 10 includes a stopper 1 and a beverage container main body (hereinafter referred to as container main body 2). The plug body 1 includes a plug body 3 attached to an opening 20 of a container body 2, a lid body 5 rotatably connected to one end of the plug body 3 via a hinge portion 4, and a plug body 3. and a lock mechanism 6 that holds the lid in a closed state at the other end. In this example, the other end side provided with the lock mechanism 6 is referred to as the front side, and the one end side provided with the hinge portion 4 is referred to as the rear side.

The container body 2 is of a thermos type in which vacuum insulation walls are formed by inner and outer containers 21 made of stainless steel (especially see FIG. 2(f)). The opening 20 is formed in a cylindrical shape, the diameter of the opening 20 is smaller than the diameter of the inner and outer containers 21 , and a shoulder 22 is formed from the upper end of the inner and outer containers 21 to the lower end of the opening 20 . In this embodiment, a strap attachment member 23 is attached from the shoulder 22 to the opening 20 .

The strap attachment member 23 has a lower ring portion 24 and an upper ring portion 25 integrally formed with the lower ring portion 24 and having a smaller diameter than the lower ring portion 24 (FIGS. 1(b) and 2(f)). reference). The lower ring portion 24 is arranged so as to surround the shoulder portion 22, and has a projecting shaft 26 for strap attachment on its outer peripheral portion. A circumferential groove portion 27 for fixing the strap attachment member 23 is formed in the outer periphery of the upper portion of the inner and outer containers 21 of the container body 2, and a fixing protrusion 28 formed on the inner peripheral surface of the lower ring portion 24 is formed. It fits into the circumferential groove portion 27 . The upper ring portion 25 is arranged to surround the opening 20 and has a male screw portion 29 on its outer circumference. In this example, a configuration is shown in which the stopper 1 is screwed through the male threaded portion 29 provided on the strap attachment member 23. A configuration in which the stopper 1 is screwed via a threaded portion (not shown) may be employed.

The locking mechanism 6 includes an engaging piece 7 that engages with an engaging portion 51 (see FIG. 2(f)) provided on the lid 5, and a sliding member that is provided outside the engaging piece 7 and is slidable up and down. It has a piece 8 and a guide frame 9 that pivotally supports the engagement piece 7 and guides the slide piece 8 .

As shown in FIGS. 3(a) to 3(f), the plug body 3 has a barrel portion 31 that constitutes the main body of the plug body 3, and a cylindrical mouthpiece protruding upward from the upper surface of the barrel portion 31. 32 are provided (see also FIG. 2(f) and FIG. 6(b) described later). A hinge shaft portion 33 is provided at the upper end portion on the back side of the body portion 31 . The hinge shaft portion 33 is formed as a protruding piece so as to hold a hinge shaft portion 56 of the lid body 5, which will be described later. The lower surface of the trunk portion 31 is open, and the internal peripheral surface of the trunk portion 31 is provided with a female screw portion 34 (Fig. 3(f), Fig. 4 ( a) see) is provided. Indentations 35 for decoration and slip prevention are provided on the left and right sides of the side peripheral surface of the body 31, respectively. Protective frame portions (both wall portions 91a and 91b and a lower wall portion 92) forming part of the guide frame body 9 are formed on the front side of the body portion 31 so as to protrude in the front direction.

The lid body 5 is a substantially bowl-shaped member having a peripheral surface portion 52 and an upper surface portion 53 and having an open lower surface. The outer shape of the peripheral surface portion 52 is formed such that the front side is higher than the back side. The outer shape of the upper surface portion 53 is inclined so as to descend from the front side to the rear side. Left and right ends of the upper surface portion 53 are formed to form recesses 54 extending to the peripheral surface portion 52 . Protective frame portions (both wall portions 93a and 93b and an upper wall portion 94) forming part of the guide frame 9 are formed on the front side of the peripheral surface portion 52 so as to protrude in the front direction (see FIG. 3). (b)).

A spout portion 55 that fits into the mouthpiece 32 is provided on the inner surface of the upper surface portion 53 of the lid 5 (see also FIG. 6(b)). The engaging portion 51 of the lid body 5 is formed so that an engaging claw 51a protrudes outward from the inner surface of the front side of the peripheral surface portion 52 . In addition, the engaging claw 51a has an inclined lower surface and a substantially horizontal upper surface (see FIG. 4A). A hinge bearing portion 56 is formed at the rear side end portion of the upper surface portion 53 . The hinge bearing portion 56 is formed as a pair of projecting pieces so as to sandwich the hinge shaft portion 33 . In addition, an urging spring (not shown) that generates an urging force in the rotational direction is embedded in the inner surface of the hinge bearing portion 56 .

The guide frame 9 sandwiches the slide piece 8 between both wall portions 91a and 91b on the plug body 3 side and both wall portions 93a and 93b on the lid body 5 side, and controls the vertical sliding direction of the slide piece 8. guide. Both wall portions 91a and 91b of the plug main body 3 are formed with bearing holes 95 for pivoting the engaging piece 7 (see FIGS. 3(a) and 3(b)). In addition, the front outer surfaces of both wall portions 91a and 91b, the lower wall portion 92, and the body portion 31 on the plug main body 3 side have accommodation spaces 96 (FIG. 4) into which the lower portions of the engaging pieces 7 and the sliding pieces 8 are pushed. (a)) is formed. A lower wall portion 92 of the guide frame 9 is provided with a stepped portion 92a (protective frame) that contacts the lower end surface of the slide piece 8 and the lower end portion of the slide piece 8 on the back side. An urging coil spring 97 is attached to a surface of the housing space 96 of the front-side outer surface of the trunk portion 31 to generate an urging force against the lower portions of the engaging piece 7 and the sliding piece 8 being pushed.

As shown in FIGS. 4A, 4B, and 5A to 5F, the engaging piece 7 is formed on the plate-like portion 71 and the upper end side of the plate-like portion 71. It has a claw portion 72 that engages with the engaging portion 51 (engaging claw 51a), and a shaft portion 74 having a shaft hole 73 through which a shaft support rod for connection with the guide frame 9 is inserted. The shaft portion 74 is provided at a substantially center position of the plate-like portion 71 in the vertical direction. The side portion and the claw portion 72 are drawn outward (see also FIG. 6(a)).

The claw portion 72 is formed so that the shape on the front side thereof is substantially the same shape as the upper end portion of the slide piece 8, and when the slide piece 8 is in the upper position, it is hidden by the slide piece 8 and cannot be seen from the front direction. disappears (see FIG. 5(b)). When viewed from the side, the claw portion 72 has an inclined upper surface and a substantially horizontal lower surface (see FIG. 4A).

The plate-like portion 71 is formed so that the space between the shaft portion 74 and the claw portion 72 is narrow. ) A projecting convex portion 75 is formed. The length of the projection 75 in the vertical direction is substantially equal to the sliding distance of the slide piece 8, and the corners of the upper and lower ends thereof are chamfered to form slopes. A receiving portion for the coil spring 97 is provided at the lower end portion of the plate-like portion 71 .

The slide piece 8 includes a plate-like portion 81 , a pair of side wall portions 82 erected from the rear side of the plate-like portion 81 and sandwiching both sides of the engagement piece 7 , and a lower end portion of the engagement piece 7 . and a pair of L-shaped guide portions 83 for holding and guiding. An operation protrusion 84 is formed on the front side of the plate-like portion 81 . The operation projection 84 is a mountain-shaped projection when viewed from the side, and is arranged slightly below the center of the plate-like portion 81 in the vertical direction. In addition, the operation protrusion 84 is inclined more strongly on the lower surface side than on the upper surface side so that force is easily applied when the slide piece 8 is slid upward. The four upper, lower, left, and right peripheral surfaces of the slide piece 8 are covered with both wall portions 91a, 91b, 93a, and 93b, a lower wall portion 92, and an upper wall portion 94 that constitute the guide frame 9. A slight part of the front side of the slide piece 8 and the operation protrusion 84 protrude outward.

The side wall portion 82 is provided at a substantially central position in the vertical direction of the plate-like portion 81, and is formed with a long hole 85 through which the shaft hole 73 of the engaging piece 7 is inserted. Therefore, while the slide piece 8 rotates together with the engagement piece 7 about the pivot rod as an axis, the slide piece 8 is guided by the pivot rod along the long hole 85 so that the engagement piece 7 rotates. It becomes slidable up and down. In addition, since the L-shaped guide portion 83 supports the rear side surface of the engaging piece 7, when the lower end portion of the engaging piece 7 and the lower end portion of the sliding piece 8 are pushed in, the lower end portion of the engaging piece 7 and the lower end portion of the sliding piece 8 are pushed in. It rotates together with the engaging piece 7 without shaking between them.

Also, the pair of side wall portions 82 each have projections 86 projecting toward both side portions of the engaging piece 7 . The protruding portion 86 has a substantially triangular shape when viewed from the rear, and moves with the upper end portion or the lower end portion of the chamfered protruding portion 75 of the engaging piece 7 with moderate resistance. Therefore, when the slide piece 8 slides up and down with respect to the engagement piece 7 , the projection 86 rides over the projection 75 of the engagement piece 7 while being elastically deformed, and moves toward the upper end side or the lower end of the projection 75 . By restoring on the part side, a click feeling is generated.

In the lock mechanism 6 configured as described above, the slide piece 8 is vertically moved in a state in which the engagement piece 7 is engaged with the engagement claw 51a of the lid 5, and the slide piece 8 is arranged side by side with the engagement piece 7. slidably. As shown in FIG. 4A, when the slide piece 8 is in the lower position, the lower end of the slide piece 8 is perpendicular to the stepped portion 92a of the lower wall portion 91 (protection frame) of the guide frame 9. As shown in FIG. Even if the slide piece 8 comes into contact with the surface and the lower end of the slide piece 8 is pushed inward from the outside, the slide piece 8 is not pushed in, so the rotation of the engagement piece 7 attached to the slide piece 8 is also restricted, and the locking mechanism. 6 is locked. At this time, the lower end surface of the slide piece 8 is in contact with the horizontal surface of the stepped portion 92a, and the slide piece 8 hardly protrudes outward except for the operation protrusion 84. As shown in FIG. Therefore, when the user puts the thermos bottle 10 in and out of a bag or the like, the slide piece 8 is unlikely to come into contact with any object, and the lock mechanism 6 is prevented from being released against the user's intention. be able to.

Then, as shown in FIG. 4B, when the slide piece 8 is slid to the upper position, the projection 86 of the slide piece 8 climbs over the projection 75 of the engagement piece 7 (see FIG. 4B). 5(e) and (f)), while giving the user an appropriate operational resistance, by fitting into the upper end side position of the convex portion 75 which is concave with respect to the convex portion 75 and restoring it, a click with a click generate a feeling.

In addition, in order to give the operation resistance and click feeling as described above, for example, when convex portions are provided on both surfaces of the engaging piece and the sliding piece facing each other, when the sliding piece is pushed in, If the respective protrusions are worn away, there is a risk that the slide piece will slide up and down without resistance. On the other hand, according to the present embodiment, the pair of protrusions 86 formed on the side wall portion 82 and the pair of projections 75 on the side of the engaging piece 7 contact each other in the same direction as the sliding piece 8 is pushed. are perpendicular to each other, even if the slide piece 8 is pushed in, the projection 86 and the projection 75 are not worn out. In addition, since there are two pairs each of the protrusions 86 and the protrusions 75, the wear is less likely to occur compared to the case where one pair of protrusions is provided. A click feeling can be generated, and unintentional unlocking of the lock mechanism 6 can be more effectively suppressed.

Further, the convex portion 75 is provided closer to the claw portion 72 than the shaft portion 74, and the protrusion portion 86 is provided to the upper end portion side of the side wall portion 82 (see FIGS. 5(e) and 5(f)). . Further, the operation protrusion 84 is provided on the lower end side of the front side of the slide piece 8 and is separated from the protrusion 75 and the protrusion 86 . Therefore, even if the operation protrusion 84 is pushed by the user's finger, the protrusion 75 or the protrusion 86 cannot be pressed down, so that the protrusion 75 or the protrusion 86 is appropriately deformed when the slide piece 8 is slid. You can get a snap and a lively click feeling.

In the present invention, when the slide piece 8 is positioned above the engagement piece 7, the lock mechanism 6 is released, and when the slide piece 8 is positioned below the engagement piece 7, the lock mechanism 6 is locked. However, as long as it has a lower wall portion (protective frame portion) that contacts the lower end surface of the slide piece 8 in the locked state, various modifications are possible without being limited to the above embodiment. The shapes of the plug body 3 and the lid 5 are not limited to the shapes described above, and may be changed as appropriate. good too. Also, the container body 2 may have any shape, and is not limited to the inner and outer containers 21 described above. Furthermore, for example, the engaging piece 7 may be made of a flexible resin material. In this case, for example, when the lid 5 is open with respect to the stopper body 3 and the slide piece 8 is in the lower position (locked state) as shown in FIG. If 7 is made of a hard resin material that does not have flexibility, the lid 5 cannot be closed unless the slide piece 8 is moved to the upper position. Also, if the lid 5 is forced to close in this state, the claw portion 72 of the engaging piece 7 may be damaged. On the other hand, if the engaging piece 7 is made of a flexible resin material, the engaging piece 7 will be slightly deformed. can be closed.

REFERENCE SIGNS LIST 1 stopper 10 thermos bottle 2 container body 20 opening 3 stopper body 4 hinge 5 lid 51 engaging portion 6 locking mechanism 7 engaging piece 72 claw portion 74 shaft portion 75 convex portion 8 sliding piece 82 side wall portion 84 operating protrusion 86 projection 9 guide frame 92a step (protection frame)

Claims (4)

A plug body attached to an opening of a beverage container body, a lid rotatably connected to one end of the plug body via a hinge, and the other end of the plug body closing the lid. A stopper for a beverage container, comprising:
The locking mechanism includes an engaging piece that engages with an engaging portion provided on the lid, a sliding piece that is provided outside the engaging piece and is slidable up and down, and a shaft that supports the engaging piece. and a guide frame for guiding the slide piece,
The slide piece rotates together with the engagement piece when in the upper position relative to the engagement piece, restricts rotation of the engagement piece when in the lower position with respect to the engagement piece, having a pair of side walls that sandwich both sides of the engaging piece,
the pair of side wall portions each have projections projecting toward both sides of the engaging piece,
the engaging piece has a pair of protrusions projecting from both sides toward the side wall,
When the slide piece slides up and down with respect to the engagement piece, the protrusion crosses over the protrusion to reach the upper end side or the lower end side of the protrusion, thereby generating a click feeling. The stopper for a beverage container according to claim 1, characterized in that: 2. The beverage according to claim 1 , wherein the guide frame has a protective frame portion that abuts against a lower end surface of the slide piece when the slide piece is in a lower position with respect to the engagement piece. Container closure. The engaging piece has a claw portion that engages with the engaging portion provided on the lid body, and a shaft portion that has a shaft hole through which a shaft support rod for connection with the guide frame body is inserted. death,
The protrusion is provided closer to the claw than the shaft, and the protrusion is provided closer to the upper end of the side wall,
3. The stopper for a beverage container according to claim 2, wherein an operation protrusion is provided on the lower end side of the front side of the slide piece. A thermos flask comprising the stopper for a beverage container according to any one of claims 1 to 3.

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