CN215126905U - Bolt body - Google Patents

Abstract

The utility model aims to ensure the degree of freedom of bolt design to a certain extent even if a torsion spring with relatively strong force is adopted in the bolt. The utility model discloses a bolt body includes: a body (110) having a first hinge structure forming portion (115); and a cover (130) which has a second hinge structure forming part (131D) forming a hinge structure together with the first hinge structure forming part and is rotatably mounted to the main body via the hinge structure; and the second hinge formation has a second face (Ph) which, when the hinge formation is formed, is opposite to the first face (Pl) of the first hinge formation, and the bolt body further comprises a pressing portion (ST) which presses the second face against the first face.

Description

Bolt body

Technical Field

The utility model relates to a bolt body installed in a container such as a liquid container.

Background

The following proposals have been made in the past: "a key, comprising: a liquid passage having an inlet and an outlet; a cover provided to close the outlet of the liquid passage and having a first locked portion; a locking mechanism having a first locking portion that can lock the first locked portion, and capable of switching between a locked state in which the first locked portion is locked by the first locking portion and the lid is in a closed state, and a released state in which the locked state is released by an operation and the lid can be opened; and a mechanism for controlling whether or not the locking mechanism can be released, and the mechanism can be switched between a releasable state in which the locking mechanism can be changed from the locking state to the released state by operation and a non-releasable state in which the locking mechanism cannot be changed from the locking state to the released state; and the mechanism for controlling whether the locking can be released is automatically set to the unreleasable state when the locking mechanism is set from the released state to the locked state. "(see, for example, Japanese patent laid-open publication No. 2018-34891, etc.).

[ Prior art documents ]

[ patent document ]

[ patent document 1] Japanese patent laid-open No. 2018-34891

SUMMERY OF THE UTILITY MODEL

[ problem to be solved by the utility model ]

However, in the plug body as described above, when the locking mechanism is set to the release state after the mechanism for controlling whether or not to release the locking is set to the releasable state (i.e., after the lock is released), the lid body is opened by the biasing force of the torsion spring, and the lid body is set to the fully open state. Here, if the biasing force of the torsion spring is weak, the lid may not be fully opened, and therefore, the torsion spring having a certain degree of biasing force must be used. As described above, when a torsion spring having a certain degree of biasing force is used, the lid is supposed to collide with the rear portion of the hinge so as to be damaged, and therefore, in order to alleviate or prevent the damage, it is necessary to provide a protrusion (stopper) at the rear portion of the hinge. However, this has the inconvenience that the degree of freedom in the design of the plug body is limited.

The utility model aims to ensure the degree of freedom of bolt design to a certain extent even if a torsion spring with relatively strong force is adopted in the bolt.

[ means for solving problems ]

The utility model discloses a bolt body includes:

a body having a first hinge structure forming portion; and

a lid body which has a second hinge structure forming portion forming a hinge structure together with the first hinge structure forming portion and is rotatably attached to the main body via the hinge structure; and is

The second hinge formation part has a second face which faces the first face of the first hinge formation part when the hinge formation is formed,

and the key body further comprises a pressing portion which presses the second surface against the first surface.

According to the above configuration, the second surface is pressed against the first surface by the pressing portion, and a force such as a frictional force is generated between the second surface and the first surface. Therefore, in the plug body, even if a torsion spring having a relatively strong urging force is used, the potential energy when the lid body is opened can be weakened. Further, if the force such as the frictional force is increased to such an extent that it is not necessary to provide a projection (stopper) at the rear portion of the hinge, the projection (stopper) can be omitted, and the degree of freedom in designing the plug body can be secured to a certain extent.

In the utility model, the water-saving device is provided with a water-saving valve,

the pressing portion is a force-applying member,

the urging member preferably urges the second hinge structure forming portion so as to press the second surface of the second hinge structure forming portion against the first surface of the first hinge structure forming portion.

According to the above configuration, the force such as the frictional force can be adjusted by selecting an appropriate biasing member from a plurality of biasing members that apply different forces. Therefore, it is possible to relatively easily apply appropriate force such as friction force to various plugs.

In the utility model, the water-saving device is provided with a water-saving valve,

preferably, at least one of the first surface and the second surface is a stepped surface.

According to the structure, the pressing force can be changed halfway. Therefore, the potential energy of the plug body at the time of opening the lid body can be changed halfway.

In the utility model, the water-saving device is provided with a water-saving valve,

preferably, the pressing portion presses the second surface against the first surface over the entire rotation region of the lid body.

According to the structure, the potential energy when the cover body is opened can be controlled in the whole rotating area.

In the utility model, the water-saving device is provided with a water-saving valve,

it is preferable that when the cover is changed from the closed state to the open state, the pressing force in the second rotation region after the initial rotation region is weakened as compared with the pressing force in the initial rotation region of the cover. Further, it is preferable that the pressing force in a third rotation region after the second rotation region is stronger than the pressing force in the second rotation region of the cover.

According to this configuration, the protrusion (stopper) can be omitted, and the lid can be opened as quickly as possible.

Drawings

Fig. 1 is an external perspective view of a beverage container according to an embodiment of the present invention.

Fig. 2 is an external perspective view of the plug according to the embodiment of the present invention in a closed state.

Fig. 3 is an external perspective view of the plug according to the embodiment of the present invention in an open state.

Fig. 4 is a front view of the plug body according to the embodiment of the present invention in a closed state.

Fig. 5 is a rear view of the plug body according to the embodiment of the present invention in a closed state.

Fig. 6 is a plan view of the plug body according to the embodiment of the present invention in a closed state.

Fig. 7 is a sectional view taken along line I-I of fig. 4.

Fig. 8 is an exploded perspective view of a plug body constituting a plug body according to an embodiment of the present invention.

Fig. 9 is an exploded perspective view of a lid body constituting a plug body according to an embodiment of the present invention.

Fig. 10 is an external perspective view of a locking claw piece according to an embodiment of the present invention.

Fig. 11 is a sectional view II-II of fig. 6.

Fig. 12 is an enlarged view of the portion P1 shown in fig. 5.

Fig. 13 is a side view of a plug body constituting a plug body according to an embodiment of the present invention.

Fig. 14 is an enlarged view of the left end face Pl of the cover support portion illustrated in fig. 13.

Fig. 15 is a longitudinal sectional view of a cap body constituting a plug body according to an embodiment of the present invention.

Fig. 16 is a first state diagram for explaining a lid opening speed adjusting function of the plug according to the embodiment of the present invention.

Fig. 17 is a second state diagram for explaining a lid opening speed adjusting function of the plug according to the embodiment of the present invention.

Fig. 18 is a third state diagram for explaining a lid opening speed adjusting function of the plug according to the embodiment of the present invention.

[ description of symbols ]

100: bolt body

110: bolt body (noumenon)

115: cover supporting part (first hinge structure forming part)

131D: lid side connection part (second hinge structure forming part)

130: cover body

Ph: hook shape plane (second surface)

Pl: left end face (first face)

ST: torsion spring (pressing part, force applying component)

Detailed Description

< Structure of beverage Container according to embodiment of the present invention >

As shown in fig. 1, a beverage container 10 according to an embodiment of the present invention includes a Vacuum Double Container (VDC) and a plug 100. Further, the beverage container 10 is assembled by screwing the plug 100 to the vacuum double container VDC. Hereinafter, the vacuum double-container VDC and the stopper 100 will be described in detail.

(1) Vacuum double-layer container

The vacuum double-layered container VDC is a metal container such as stainless steel, and is mainly formed of a bottomed inner tube and a bottomed outer tube. Specifically, the opening end of the inner tube and the opening end of the outer tube are joined to each other so as to form an insulating space therebetween, and then the insulating space is brought into a vacuum state, thereby forming the vacuum double-layered container VDC.

The inner cylinder is mainly formed by an inner cylinder side wall part, an inner cylinder bottom wall part and a front end wall part. The inner cylindrical wall portion has a substantially cylindrical shape. The central part of the bottom wall of the inner cylinder is raised in a spherical shape towards the opening side, and the corner part is in a concave arc shape. The inner cylinder bottom wall portion is located below the inner cylinder side wall portion. The front end wall portion has a substantially cylindrical shape and forms an opening of the vacuum double-layer container VDC.

The outer cylinder is mainly formed by a side wall part of the outer cylinder, a bottom wall part of the outer cylinder and a male thread part. The outer-cylinder side wall portion has a substantially cylindrical shape as the inner-cylinder side wall portion. The outer cylinder bottom wall portion is formed in a substantially circular disk shape and joined to a lower end portion of the outer cylinder side wall portion. The male screw portion is formed on the outer peripheral surface of the upper end portion of the outer cylindrical side wall portion.

(2) Bolt body

As shown in fig. 2 to 9, the plug body 100 mainly includes a plug body 110, a locking claw piece 114, a spout body 120, an annular gasket PK, a lid body 130, a pin axis AX, a torsion spring ST, and a plug-side coil spring SC. These component parts will be described in detail below.

(2-1) plug body

As shown in fig. 7 and 8, the plug main body 110 mainly includes a frame-shaped wall portion 111, a cylindrical wall portion 112, a female screw portion 113, and a cover support portion 115. In the plug main body 110, the frame-shaped wall portion 111, the cylindrical wall portion 112, the female screw portion 113, and the cover support portion 115 are integrally molded with a resin such as a polypropylene resin. Hereinafter, each constituent portion will be described in detail.

(2-1-1) frame-shaped wall portion

As shown in fig. 7 and 8, the frame-shaped wall portion 111 is a substantially annular portion constituting the upper wall of the plug body 110, and includes a central wall portion 111A, a peripheral wall portion 111B, a base portion 111C, and a positioning rib 111D.

As shown in fig. 3 and 8, the central wall portion 111A is a wall portion having a substantially D-shaped outline, and is formed such that a straight portion side faces a cover support portion arrangement side, that is, a back surface side in a plan view. As shown in fig. 8, the central wall portion 111A is formed with a substantially D-shaped spout insertion opening MO and a substantially rectangular claw receiving portion insertion opening FO. As shown in fig. 8, the spout insertion opening MO is formed such that the straight portion side faces the back surface side (the lid support portion arrangement side) in a plan view. As shown in fig. 8, the substantially rectangular claw receiving portion insertion port FO is located on the front side of the spout body insertion port MO and communicates with the spout body insertion port MO. As shown in fig. 8, the central wall portion 111A has a substantially rectangular locking claw piece insertion opening SO formed on a straight portion side (back surface side) of the spout insertion opening MO SO as to be adjacent to the spout insertion opening MO. Here, the locking claw piece insertion port SO is not communicated with the spout body insertion port MO in a plan view. As shown in fig. 8, the locking claw piece 114 is inserted through the locking claw piece insertion hole SO.

The peripheral wall portion 111B is a substantially annular wall portion, and is provided so as to surround the central wall portion 111A, and as shown in fig. 3 and 8, connects the central wall portion 111A to the cylindrical wall portion 112.

The base portions 111C are formed in a pair adjacent to both the left and right sides of the claw receiving portion insertion opening FO on the front side of the central wall portion 111A (see fig. 8). As shown in fig. 8, these base portions 111C extend from the front edge of the claw receiving portion insertion hole FO toward the back surface side. As shown in fig. 8, the upper surface of base portion 111C is located lower than the upper surface of central wall portion 111A. That is, the central wall portion 111A and the base portion 111C form a stepped structure, the central wall portion 111A is located at an upper step, and the base portion 111C is located at a lower step.

The positioning ribs 111D are a pair of ribs that function to stabilize the front-rear position of the spout body 120 in a state where the spout body 120 is attached to the plug body 110, and extend downward from the left and right portions of the lower surface of the frame-shaped wall portion 111 as shown in fig. 8. These positioning ribs 111D are fitted into the rib receiving openings RO of the spout body 120 when the spout body 120 is mounted to the plug body 110.

(2-1-2) cylindrical wall portion

As shown in fig. 3, 6, and 8, the cylindrical wall portion 112 has a substantially cylindrical shape and extends downward from the peripheral edge wall portion 111B of the frame-shaped wall portion 111. As shown in fig. 7 and 8, a female screw portion 113 is formed on the inner peripheral surface of the cylindrical wall portion 112.

(2-1-3) female screw portion

The female screw portion 113 is screwed to the male screw portion of the vacuum double layer container, and is formed on the inner peripheral surface of the cylindrical wall portion 112 as described above.

(2-1-4) cover support part

As shown in fig. 8, the cover support portion 115 is a substantially cylindrical portion, and is disposed behind the peripheral edge wall portion 111B of the frame-shaped wall portion 111 such that the cylindrical axis thereof extends in the left-right direction. As shown in fig. 11, a bearing portion Rx is formed at a central portion of the cover support portion 115, and as a result, a dumbbell-shaped space Cd is formed inside the cover support portion 115. For convenience of explanation, the dumbbell space Cd is divided into a left accommodating space Cl, a right accommodating space Cr, and a communication hole Rp. The communication hole Rp is a cylindrical hole formed by the bearing portion Rx, is located between the left accommodating space Cl and the right accommodating space Cr, and communicates with the left accommodating space Cl and the right accommodating space Cr. As shown in fig. 11, a pin axis AX is inserted into the communication hole Rp. As shown in fig. 11, the pin axis AX also passes through the left-side accommodation space Cl and the right-side accommodation space Cr. The left-side housing space Cl is a cylindrical space having a diameter larger than that of the communication hole Rp, and houses the torsion spring ST as shown in fig. 11. As shown in fig. 11, the pin axis AX passes through the inside of the torsion spring ST. The torsion spring ST biases the lid 130 in the opening direction. The right-side housing space Cr is a cylindrical space having a diameter larger than that of the communication hole Rp, and houses the plug-side coil spring SC as shown in fig. 8 and 11. As shown in fig. 11, the pin axis AX passes through the inside of the bolt-side coil spring SC. Here, since the left end of the plug-side coil spring SC abuts on the bearing portion Rx, the plug-side coil spring SC does not move to the left side of the bearing portion Rx. That is, if the right end of the plug-side coil spring SC is pressed leftward, the plug-side coil spring SC contracts. That is, the plug-side coil spring SC biases the cover 130 (particularly, the rear end portion of the cover 130) toward the right side (the left side in the cross-sectional view of fig. 11).

As shown in fig. 12, a step-slope structure as a lid opening speed adjustment structure is formed on the left end face Pl of the lid support portion 115. As shown in fig. 13 and 14, the left end face Pl is formed by a first plane Pf1, a first inclined surface Pt1, a second plane Pf2, a second inclined surface Pt2, and a third plane Pf 3. Here, the first plane Pf1 and the third plane Pf3 are located on the same plane, and the second plane Pf2 is located slightly outside (on the left side (on the right side in the partially enlarged rear view of fig. 12)) of the first plane Pf1 and the third plane Pf 3. The first inclined surface Pt1 is inclined outward (to the left (to the right in the partially enlarged rear view of fig. 12)) as it goes from the first plane Pf1 to the second plane Pf 2. The second inclined surface Pt2 is inclined inward (to the right (to the left in the partially enlarged rear view of fig. 12)) from the second plane Pf2 to the third plane Pf 3. The left end face Pl of the lid support portion 115 functions as a lid opening speed adjustment structure (a structure that adjusts the movement speed of the lid 130 when the lid 130 is opened) as will be described in detail later.

(2-2) locking claw piece

The locking claw piece 114 is an insert part, and is molded from a resin material having high elasticity such as polyoxymethylene (polyacetal). As shown in fig. 10, the locking claw piece 114 mainly includes a block portion 114a, a main plate spring portion 114b, a main claw portion 114c, a sub plate spring portion 114d, and a sub claw portion 114 e. The block portion 114a is a portion supporting the main plate spring portion 114b and the sub plate spring portion 114 d. The main leaf spring portion 114b is a portion having a leaf spring function, and extends downward from the longitudinal center portion of the block portion 114a as shown in fig. 10. The main pawl portion 114c is a portion for locking a rear pawl receiving portion 124 of the spout body 120 described below, and is provided at the lower end of the main plate spring portion 114b as shown in fig. 10. The main claw portion 114c projects to one side in the short direction in a plan view. The sub plate spring portion 114d is a portion having a plate spring function, and extends downward from both ends in the longitudinal direction of the block portion 114a as shown in fig. 10. The sub pawl portion 114e is a portion for fixing the locking pawl piece 114 to an integrally molded product including the frame-shaped wall portion 111, the cylindrical wall portion 112, the female screw portion 113, the cover support portion 115, and the like, and is provided at the lower end of the sub plate spring portion 114d as shown in fig. 10. As shown in fig. 10, the sub-pawl portion 114e extends outward in the longitudinal direction in a plan view.

As shown in fig. 8, the locking claw piece 114 is inserted into the locking claw piece insertion hole SO such that the main claw portion 114c faces the front surface side, and is engaged with the central wall portion 111A of the frame-shaped wall portion 111 on both sides of the locking claw piece insertion hole SO by the sub claw portion 114 e.

(2-3) a mouthpiece

As shown in fig. 8, the spout body 120 is a substantially cylindrical member, and mainly includes a spout portion 121, a claw receiving portion 122, a front protrusion portion 123, a rear claw receiving portion 124 (see fig. 7), a partial annular rib 125, an annular rib 126, and a packing attachment portion 128. Further, a beverage passage is formed inside the spout body 120. That is, the lower opening of the mouthpiece 120 serves as the beverage inlet Mi (see fig. 7), and the upper opening of the mouthpiece 120 serves as the beverage outlet Mo (see fig. 7). Hereinafter, each constituent portion will be described in detail.

(2-3-1) mouthpiece

As shown in fig. 3, 7, and 8, the spout portion 121 is formed of a side wall 121a and a bowl-shaped bottom wall 121b, the side wall 121a is substantially D-shaped in a plan view and is inclined downward from the front side to the back side in a side view, and the bowl-shaped bottom wall 121b is substantially D-shaped in a plan view. As shown in fig. 3 and 7, an opening DO is formed in a substantially central portion of the bottom wall 121 b.

(2-3-2) claw holder

The claw receiving portion 122 is a portion that functions to receive a claw portion 133a (described below) of a swing claw 133 (described below) of the lid body 130, and is, as shown in fig. 8, in a box shape with an open front side and is disposed on the front side of the spout portion 121. In a state where the spout body 120 is attached to the plug body 110, the claw portion 133a of the swing claw 133 of the lid body 130 is locked to the claw receiving portion 122 (see fig. 7 and 13).

(2-3-3) front projection

As shown in fig. 8, the pair of front projections 123 is formed with the bottom wall of the claw receiving portion 122 interposed therebetween, and as shown in fig. 3, the spout body 120 is mounted on the base portion 111C of the plug body 110 in a state of being mounted on the plug body 110. In a state where the spout body 120 is attached to the plug body 110, the pair of front protrusions 123 are disposed so as to face an imaginary plane extending in the front-rear direction through a cylindrical axis including the cylindrical wall portion 112 of the plug body 110.

(2-3-4) rear side pawl holder

As shown in fig. 7, the rear catch portion 124 is a catch rib formed on the back surface side of the spout portion 121, and is caught by the main catch portion 114c of the catch piece 114 in a state where the spout body 120 is attached to the plug body 110.

(2-3-5) partial circular Ribs

The partial annular rib 125 abuts against a pair of abutment rib groups projecting downward on both left and right sides of the back side of the inner edge portion of the central wall portion 111A of the frame-shaped wall portion 111 of the plug body 110 in a state where the spout body 120 is attached to the plug body 110. As shown in fig. 8, the lower surface of the partial annular rib 125 is located on the same plane as the lower surface of the rear pawl holder 124. An O-ring (not shown) is disposed between the partial annular rib 125 and the front side projecting portion 123. In addition, the height direction distance from the upper surface of the partial annular rib 125 to the lower surface of the front side protrusion 123 is designed to be longer than the thickness of the frame-shaped wall portion 111. Further, rib sockets RO are formed on the right and left sides of the partial annular rib 125. When the spout body 120 is mounted to the tap body 110, the positioning rib 111D of the tap body 110 is fitted into the rib receiving opening RO.

(2-3-6) circular Ribs

The annular rib 126 is a rib for defining the upper end position of the annular packing PK, and has a substantially annular shape.

(2-3-7) gasket mounting part

The packing attachment portion 128 is substantially cylindrical, and as shown in fig. 8, the annular packing PK is attached to the packing attachment portion 128.

(2-4) annular gasket

The ring-shaped gasket PK is a flexible member made of rubber or an elastic body, and is an elastic gasket having a substantially annular shape as shown in fig. 8.

(2-5) cover body

As shown in fig. 2, 3, 7, and 9, the lid body 130 mainly includes a lid body 131, a lid cover 136, a spacer member 132, a swing claw 133, and an operation mechanism 134. Hereinafter, each constituent element will be described in detail.

(2-5-1) Cap body

As shown in fig. 7, 9, and 15, the cover body 131 mainly includes a top portion 131A, a side wall portion 131B, a columnar portion 131C, a cover-side coupling portion 131D, a guide portion 131E, a lever pin support portion 131F, and a spring seat portion 131G. As shown in fig. 9, the top portion 131A is substantially annular, and is inclined upward from the back surface side to the front surface side in a side view as shown in fig. 15. As shown in fig. 9, the side wall portion 131B extends downward from the outer edge of the top portion 131A. As shown in fig. 7 and 15, the columnar portion 131C extends downward from the inner edge of the top portion 131A. As shown in fig. 7 and 9, a spacer member 132 is attached to the columnar portion 131C. The cover-side coupling portion 131D is a portion formed to rotatably attach the cover 130 to the plug main body 110, and as shown in fig. 9, a pair of left and right portions is formed at the rear end of the cover main body 131. As shown in fig. 9 and 15, a bearing hole BC is formed in the cover-side coupling portion 131D. The lid support portion 115 of the plug body 110 is sandwiched by the lid-side coupling portion 131D, and the pin axis AX is inserted into the communication hole Rp and the bearing hole BC of the lid-side coupling portion 131D with the communication hole Rp of the lid support portion 115 aligned with the bearing hole BC, whereby the lid 130 is rotatably supported by the lid support portion 115 of the plug body 110. That is, the lid-side coupling portion 131D constitutes a hinge structure together with the lid support portion 115 of the plug body 110 and the pin axis AX. As shown in fig. 15, a hook-shaped protrusion PR is formed on the right side surface (left side surface in the cross-sectional view of fig. 11) of the cover-side coupling portion 131D on the left side (right side in the cross-sectional view of fig. 11). A hook plane Ph is formed in the hook protrusion PR. In the plug 100, the hook plane Ph faces the left end face Pl of the cover support portion 115. As described above, the plug-side coil spring SC biases the cover 130 (particularly, the rear end portion of the cover 130) to the right (left in the sectional view of fig. 11, see the hollow arrow in fig. 11). Therefore, the hook-shaped protrusion portion PR is urged toward the cover support portion 115, and the plane Ph of the hook-shaped protrusion portion PR is pressed against the left end face Pl of the cover support portion 115. As shown in fig. 9, the guide portion 131E is formed on the front side of the cover body 131. The guide portion 131E guides the vertical movement member 134b of the operation mechanism 134 described below so that the vertical movement member 134b moves in the vertical direction. The lever pin support 131F is a portion formed to pivotally support the swing claw 133 to the lid main body 131 in a swingable manner, and a pair of left and right portions are formed on the front side of the lid main body 131 as shown in fig. 9 and 15. As shown in fig. 9 and 15, a bearing hole BO is formed in the lever pin support portion 131F. The swing claw 133 is inserted between the lever pin supports 131F, and the lever pin LP is inserted into the bearing hole BO and the bearing hole BA (described below) of the swing claw 133 while aligning the bearing hole BO of the lever pin support 131F with the bearing hole BA of the swing claw 133, whereby the swing claw 133 is pivotally supported on the lever pin support 131F of the cover body 131 in a swingable manner. As shown in fig. 7, the spring seat portion 131G is a portion facing the protrusion 133e of the swing claw 133 via the first cover-side coil spring 134d, and is formed to prevent the first cover-side coil spring 134d from being displaced.

(2-5-2) Cap

As shown in fig. 2, 3, 7 and 9, the cover 136 mainly includes a top wall portion 136A, a side wall portion 136B and a pin covering portion 136C. As shown in fig. 6, the top portion 131A has a substantially disk shape and is inclined upward from the back surface side toward the front surface side in a side view. As shown in fig. 2 and 9, the side wall 136B extends downward from the outer edge of the top wall 136A. As shown in fig. 9, an opening OP is formed on the upper side of the front portion of the head cover 136. The opening OP is used to expose the operating rod 134a of the operating mechanism 134.

(2-5-3) cushion Member

The packing member 132 is a flexible member made of rubber or an elastic body, and blocks an outlet port Mo of the beverage passage of the beverage dispenser 120 when the lid 130 is closed as shown in fig. 7 and 9. As shown in fig. 7 and 9, the packing member 132 is mainly formed of a cylindrical portion 132A and a spherical sealing portion 132B. As shown in fig. 7 and 9, the cylindrical portion 132A is a portion for fitting outside the cylindrical portion 131C of the cap body 131. The spherical sealing portion 132B is a partially spherical portion formed on the lower side of the cylindrical portion 131C, and blocks the opening DO of the spout portion 121 when the lid 130 is closed.

(2-5-4) shaking claw

As shown in fig. 7 and 9, swing pawl 133 mainly includes a pawl portion 133a, a pawl support portion 133b, a bearing portion 133c, a spring seat wall portion 133d, and a protrusion portion 133 e. As shown in fig. 7 and 9, the claw portion 133a is provided at the lower end of the claw support portion 133b and extends rearward from the front direction. As shown in fig. 7 and 9, the claw support portion 133b extends downward from the bearing portion 133 c. As shown in fig. 7 and 9, the bearing portion 133c is a portion serving as a pivot of the swing claw 133, and is formed inside the upper end of the claw support portion 133 b. Further, a bearing hole BA is formed in the bearing portion 133 c. As described above, the lever pin LP is inserted into the bearing hole BA. As shown in fig. 7 and 9, the spring seat wall portion 133d extends upward from the bearing portion 133 c. The protrusion 133e extends rearward from the rear surface of the spring seat wall 133 d. As shown in fig. 7, a first lid-side coil spring 134d is fitted around the outer periphery of the projection 133 e. As shown in fig. 7, the swing claw 133 is disposed on the front surface side of the side wall portion 131B of the cover body 131, and can swing in the front-rear direction with the bearing portion 133c as a fulcrum by operating the operating lever 134a of the operating mechanism 134. Specifically, if the spring seat wall portion 133d is moved from the front side to the rear side against the biasing force of the first cover-side coil spring 134d, the claw portion 133a is moved from the rear side to the front side, and if the spring seat wall portion 133d is pushed from the rear side to the front side by the biasing force of the first cover-side coil spring 134d, the claw portion 133a is moved from the front side to the rear side. In a state where the mouthpiece body 120 is attached to the plug body 110, the swing claw 133 is locked to the claw receiving portion 122 of the mouthpiece body 120.

(2-5-5) operating mechanism

As shown in fig. 7 and 9, the operating mechanism 134 includes an operating lever 134a, a vertical moving member 134b, a first lid-side coil spring 134d, a second lid-side coil spring 134e, and the like. As shown in fig. 7 and 9, when the lid 130 is in the closed state, the operating lever 134a is biased upward and forward by the swing pawl 133 biased by the first lid-side coil spring 134d and the vertical movement member 134b biased by the second lid-side coil spring 134 e. The vertical movement member 134b is disposed directly below the operating lever 134a and is biased upward by a second lid-side coil spring 134 e. The vertical movement member 134b is fitted into the guide portion 131E of the cover body 131, and is guided by the guide portion 131E so as to be movable only in the vertical direction. As shown in fig. 7 and 9, the first lid-side coil spring 134d is fitted into the outer periphery of the projection 133e of the swing claw 133, is supported by the spring seat portion 131G of the lid body 131, and biases the spring seat wall portion 133d of the swing claw 133 forward. The second lid-side coil spring 134e biases the vertical movement member 134b upward.

With this configuration, when the lid 130 is in the closed state (see fig. 7), the operating lever 134a is pushed down to a position not facing the top 131A of the lid main body 131, and then can move inward. At this time, when the operating lever 134a moves inward against the biasing force of the first lid-side coil spring 134d, the operating lever 134a pushes the spring seat wall portion 133d of the swing pawl 133 rearward, and the pawl portion 133a of the swing pawl 133 moves forward, thereby releasing the pawl portion 122 of the drink container 120 from being locked by the pawl portion 133 a.

When the lid 130 is changed from the open state to the closed state, the lid 130 is simply pushed into the plug body 110 and the spout body 120.

< method for mounting/dismounting spout body to plug body >

(1) Method for separating drinking body from plug body

First, the rear portion of the spout body 120 is pushed down with the lid 130 opened. The results were as follows: the rear claw receiver 124 of the spout body 120 is separated from the main claw 114C of the locking claw piece 114, and the rear part of the spout body 120 is pushed down toward the front lower side, and the front protrusion 123 of the spout body 120 is lifted from the base part 111C of the plug body 110. In this state, when the spout body 120 is pulled out rearward, the spout body 120 is detached from the plug body 110.

(2) Method for mounting drinking body on plug body

When the spout body 120 is attached to the plug body 110, the process opposite to the "method of detaching the spout body from the plug body" may be performed. That is, first, the spout body 120 is moved from the rear obliquely downward position of the plug body 110 toward the plug body 110 so that the front protrusion 123 of the spout body 120 comes above the base portion 111C of the plug body 110. Then, the lower end rear portion of the spout body 120 is pushed upward while keeping the front side protrusion 123 of the spout body 120 positioned above the base portion 111C of the plug body 110. As a result, the rear pawl receiver 124 of the spout body 120 is locked by the main pawl 114c of the locking pawl piece 114, and the spout body 120 is attached to the plug body 110.

< function of adjusting opening speed of cover >

Here, the lid opening speed adjusting function of the plug body 100 according to the present embodiment will be described in detail with reference to fig. 16 to 18.

First, as shown in fig. 16, when the lid 130 is in the closed state, the operation lever 134a of the operation mechanism 134 is operated to release the lock of the swing claw 133 to the claw receiving portion 122 of the spout body 120, and the lid 130 is opened by the biasing force of the torsion spring ST. Then, before the cover 130 starts to be opened and the state shown in fig. 17 is reached, the contact area of the hook-shaped protrusion portion PR with respect to the second plane Pf2 gradually decreases, the opening speed of the cover 130 gradually increases, and thereafter, the front end portion of the hook-shaped protrusion portion PR moves beyond the second inclined surface Pt2 into the third plane Pf3, and finally, most of the hook-shaped protrusion portion PR moves beyond the second inclined surface Pt2 into the third plane Pf3 and the first plane Pf1, and the rear end portion of the hook-shaped protrusion portion PR comes to be the second inclined surface Pt 2. However, when the tip end portion of the hook-shaped protrusion PR enters the third plane Pf3 beyond the second inclined surface Pt2, the lid 130 moves to a position further inward (right side (left side in the cross-sectional view of fig. 11)) than the second plane Pf2 due to the biasing force of the plug-side coil spring SC, and the plug-side coil spring SC is extended as compared with the state shown in fig. 16, and as a result, the biasing force of the plug-side coil spring SC is weaker than that in the state shown in fig. 16. As a result, the opening speed of the lid 130 is further increased after the front end portion of the hook-shaped protrusion PR enters the third plane Pf3 beyond the second inclined surface Pt 2.

Then, between the state shown in fig. 17 to the state shown in fig. 18, the leading end portion of the hook-shaped protrusion portion PR goes beyond the first inclined surface Pt1 into the second plane Pf2, and as the entering deepens, the contact area of the hook-shaped protrusion portion PR with respect to the second plane Pf2 becomes larger. During this time, the lid 130 moves to a position (left side (right side in the cross-sectional view of fig. 11)) outside the third plane Pf3 and the first plane Pf1 due to the biasing force of the plug-side coil spring SC, and the plug-side coil spring SC contracts as compared with the state shown in fig. 17, and as a result, the biasing force of the plug-side coil spring SC becomes stronger than that in the state shown in fig. 17. As a result, the opening speed of the cover 130 is gradually reduced during the period.

That is, in the plug 100 of the present embodiment, if the lid 130 is opened, the opening speed of the lid 130 is gradually increased, and then the opening speed is further increased, and thereafter, the opening speed is gradually decreased.

< characteristics of the plug body according to the embodiment of the present invention >

In the plug 100 according to the embodiment of the present invention, the left end face Pl of the cover support portion 115 of the plug body 110 is formed with a step-slope structure as a cover opening speed adjustment structure, and the cover-side coupling portion 131D of the cover body 131 is provided with the hook-shaped protrusion PR, and the hook-shaped protrusion PR is pressed against the left end face Pl of the cover support portion 115 of the plug body 110 by the biasing force of the plug-side coil spring SC, so that the opening speed of the cover 130 is sufficiently reduced before the cover 130 is completely opened. Therefore, in the above-described plug 100, the protrusion (stopper) can be omitted, and not only can the degree of freedom in designing the plug 100 be ensured, but also the lid 130 can be quickly opened.

< modification example >

(A)

In the plug body 100 of the above embodiment, the step-slope structure as the lid opening speed adjusting structure is adopted for the left end face Pl of the lid support portion 115 of the plug body 110, but a structure other than the step-slope structure, for example, a no-step structure or a step structure may be adopted. Further, when the stepless structure is adopted as the cover opening speed adjustment structure, the opening speed of the cover 130 can be adjusted mainly by the contact area of the "hook plane Ph of the hook-shaped protrusion PR of the cover-side coupling portion 131D of the cover body 131" with respect to the "left end face Pl of the cover support portion 115 of the plug body 110". In the case where a structure having no step is employed as the lid opening speed adjustment structure, at least one of the left end face Pl and the hook plane Ph may be a rough surface or a concave-convex surface. In this case, the hook-shaped protrusion PR may be removed from the cover-side coupling portion 131D. When the stepped structure is adopted as the cover opening speed adjustment structure, it is preferable to select the torsion spring ST having the urging force required for the hook-shaped protrusion portion PR of the cover 130 to exceed the step of the left end face Pl, but when it is assumed that the user assists the hook-shaped protrusion portion PR of the cover 130 to exceed the step of the left end face Pl (i.e., the cover 130 is opened in stages), the torsion spring ST having the urging force to such an extent that the hook-shaped protrusion portion PR of the cover 130 cannot exceed the step of the left end face Pl is selected.

(B)

In the plug 100 of the above embodiment, the step-and-slope structure as the lid opening speed adjustment structure is formed on the left end face Pl of the lid support portion 115 of the plug main body 110, and the hook-shaped protrusion PR is provided on the lid-side coupling portion 131D of the lid main body 131, but the step-and-slope structure as the lid opening speed adjustment structure may be formed on the lid-side coupling portion 131D of the lid main body 131, and the hook-shaped protrusion PR may be provided on the left end face Pl of the lid support portion 115 of the plug main body 110.

(C)

In the plug body 100 of the above embodiment, the step-slope structure as the lid opening speed adjustment structure is adopted for the left end face Pl of the lid support portion 115 of the plug body 110, and the left end face Pl is formed by the first flat surface Pf1, the first inclined surface Pt1, the second flat surface Pf2, the second inclined surface Pt2, and the third flat surface Pf3, but the left end face Pl may have a shape other than the above.

(D)

In the plug 100 of the above embodiment, the plug-side coil spring SC is used as a member for pressing the hook-shaped protrusion PR against the lid-side coupling portion 131D of the lid body 131 with respect to the left end face Pl of the lid support portion 115 of the plug body 110, but other urging members such as a small air damper (air damper) may be used as the member.

< remarks >)

The modifications (a) to (D) may be applied individually, or two or three or all four may be applied in combination.

Claims (6)

1. A key, comprising:

a body having a first hinge structure forming portion; and

a cover body which has a second hinge structure forming part forming a hinge structure together with the first hinge structure forming part, is rotatably attached to the body via the hinge structure, and has

The second hinge formation part has a second face which faces the first face of the first hinge formation part when the hinge formation is formed,

and the key body further comprises a pressing portion which presses the second surface against the first surface.

2. The key of claim 1,

the pressing portion is a force-applying member,

the urging member urges the second hinge structure forming portion so as to press the second surface of the second hinge structure forming portion against the first surface of the first hinge structure forming portion.

3. The key of claim 1 or 2,

at least one of the first surface and the second surface is a stepped surface.

4. The key of claim 1 or 2,

the pressing portion presses the second surface against the first surface over the entire rotation region of the cover body.

5. The key of claim 1 or 2,

when the cover is changed from the closed state to the open state, the pressing force in the second rotation region after the initial rotation region is weakened as compared with the pressing force in the initial rotation region of the cover.

6. The key of claim 5,

the pressing force in a third rotation region after the second rotation region is increased as compared with the pressing force in the second rotation region of the cover body.

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