Lids for drinking containers are known to include a closing mechanism. When the closing mechanism is open, a user can drink from the drinking container through the lid. When the closing mechanism is closed, a drink passage through the lid is blocked. Blocking the drink passage is helpful to avoid spills and also to retain heat when the drinking container is filled with a hot beverage.
When the drinking container is filled with a hot beverage, internal pressure can build up in the drinking container. When the closing mechanism is moved from closed to open, there is a possibility that the pressure build up can result in the hot liquid spurting through the open drink passage when not intended by the user of the drinking container.
Additionally, closing mechanisms used to selectively block the drink passage are known to include many moving components. Problems can arise when trying to clean these closing mechanisms, and improvements can be made into how these closing mechanisms are opened and closed.
In view of the foregoing, a drinking container lid assembly configured to engage an associated drinking container includes a lid body, a closing mechanism, and a lockout mechanism. The lid body includes a drink opening. The closing mechanism attaches with the lid body and is movable between an open operating position and a closed operating position. The closing mechanism allows the flow of liquid from the associated drinking container through the drink opening when in the open operating position. The closing mechanism precludes the flow of liquid from the associated drinking container through the drink opening when in the closed operating position. The lockout mechanism cooperates with the closing mechanism. The lockout mechanism includes a movable member biased toward the liquid in the associated drinking container when the lid assembly is engaged with the associated drinking container. The movable member is configured to engage with the closing mechanism to inhibit moving the closing mechanism from the closed operating position to the open operating position when pressure in the associated drinking container exceeds a predetermined threshold.
Also in view of the foregoing, a drinking container lid assembly configured to engage an associated drinking container can include a lid body, an actuator, a movable arm, and a drink valve. The lid body includes a drink opening. The actuator is movable with respect to the lid body. The movable arm is operatively connected with the actuator, and movement of the actuator results in movement of the movable arm. The drink valve is operable in a closed state in which liquid from the associated drinking container is precluded from passing through the drink opening and an open state in which liquid from the associated drinking container is allowed to pass through the drink opening. The drink valve includes a resilient member that is deformed when the movable arm is moved toward the drink valve, which places the drink valve in the open state.
With references to
The lower lid body 32 includes an upper side wall 50 that is interrupted and extends upwardly from a radial shelf 52, which is circular in configuration in the illustrated embodiment. The lower lid body 32 also includes a lower side wall 54, which is threaded to allow the lid body 14 to thread onto the drinking container 12. Engagement features 56 are provided in the interrupted upper side wall 50 that cooperate with engagement features 58 (
The lid assembly 10 also includes an actuator 80, which can be an assembly, that is movable with respect to the lid body 14. In the illustrated embodiment, the actuator 80 includes a button 82 and a button cover 84 that covers the button 82. The button 82 includes a fastener opening 86. A fastener 88 extends through the fastener opening 86 to connect the button 82 with the closing mechanism 16 in a manner that will be described in more detail below. A button gasket 92 also includes a fastener opening 94, which receives the fastener 88 when the fastener 88 extends through the fastener opening 86 in the button 82. The button gasket 92 is positioned below the top wall 42 of the upper lid body 30 when the lid assembly 10 is finally assembled. The button 82 and the button cover 84 extend through the actuator opening 34 in the upper lid body 30 when the lid assembly 10 is finally assembled.
The closing mechanism 16 operates in a manner similar to a known ballpoint pen mechanism and can be referred to as a click-click mechanism. The closing mechanism 16 is movable between an open operating position and a closed operating position, and can maintain either position until acted upon by an outside force. The closing mechanism 16 includes a cam 100 and a follower 102 which are received in a closing mechanism housing 104. The cam 100 includes a button fastener opening 106 that receives the fastener 88 to connect the button 82 with the cam 100. The cam 100 also includes an extension 108, which is cylindrical in the illustrated embodiment, and includes a follower fastener opening 110, which receives a follower fastener 112 to connect the follower 102 with the cam 100.
The cam 100 includes a plurality of cam teeth 114 that cooperate with the follower 102. The cam 100 also includes a rack 116 and a plurality of cam wings 118 that extend radially outwardly and engage with the closing mechanism housing 104 in a manner described in more detail below.
The follower 102 includes an extension through bore 122 through which the extension 108 of the cam 100 is received. The follower 102 also includes a plurality of follower teeth 124 that cooperate with the cam teeth 114. The follower 102 also includes a plurality of follower wings 126 that are similar in configuration to the cam wings 118. As is more clearly visible in
With reference to
The closing mechanism 16 also includes a closing mechanism frame 140. The closing mechanism frame 140 includes resilient fingers 142 that engage the closing mechanism housing 104 to connect the closing mechanism housing 104 with the closing mechanism frame 140. The closing mechanism frame 140 also includes a closing mechanism housing receiving opening 144 that receives the closing mechanism housing 104. The closing mechanism frame 140 also include a drink passage structure notch 146 and a vent passage structure receiver 148. The closing mechanism frame 140 also includes arm mounts 150 to mount a movable arm 170 to the closing mechanism frame 140.
The closing mechanism 16 includes the movable arm 170 that is operatively connected to the cam 100 through a gear 172. The gear 172 includes a plurality of teeth 174 and an axle opening 176. The axle opening 176 receives an axle 178, which is received in axle openings 180 provided in the closing mechanism housing 104. The movable arm 170 includes a movable arm rack 182, which engages with the teeth 174 of the gear 172. The teeth 174 of the gear 172 also engage with the rack 116 of the cam 100. Movement of the cam 100 via movement of the actuator 80 rotates the gear 172, which results in translational movement of the movable arm 170.
The movable arm 170 includes a drink valve contact surface 184 and a vent valve contact surface 186, which is provided on an extension 188. The movable arm 170 also includes a spring locating feature 190 which cooperates with a biasing spring 192 to bias the movable arm 170 toward the drink opening 22 when the lid assembly 10 is finally assembled. The movable arm 170 also includes a lockout recess 194 which cooperates with the lockout mechanism 18 in a manner described in more detail below.
The lid assembly 10 also includes a lower body gasket 210. The lower body gasket 210 includes a base 212, which is circular in the illustrated embodiment, and is the same in shape and size as the base wall 60 of the lower lid body 32. The lower body gasket 210 connects with the lid body 14 and covers the movable member 24 of the lockout mechanism 18 and also defines a portion of a drink passage 214 which leads to the drink opening 22. When the lid assembly 10 is finally assembled, the lower body gasket 210 prevents liquid traveling through the drink passage 214 from contacting the closing mechanism 16 and the lockout mechanism 18. The lower body gasket 210 is made from a resilient material, such as silicone, and can be overmolded or bonded onto the lower lid body 32.
The lower body gasket 210 includes a drink passage structure 220 that extends upwardly from the base 212. The drink passage structure 220 is hollow to define at least a portion of the drink passage 214, which is in communication with the drink opening 22. The lower body gasket 210 also includes a vent passage structure 222 which also extends upwardly from the base 212. The vent passage structure 222 is also hollow to define a vent passage 224, which connects the vent opening 38 with the inside of the drinking container 12. The lower body gasket 210 also includes a lockout mechanism recess 226 surrounded by a ridge 228 which extends upwardly from the base 212. The lower body gasket 210 can also include a connector opening 232 provided through the base 212. The lower body gasket 210 covers the entire base wall 60 of the lower lid body 32 with the exception of the connector opening 232 when overmolded onto or bonded to the lower lid body 32. The connector opening 232 is, however, covered by a resilient material (described in more detail below), which isolates the closing mechanism 16 and the lockout mechanism 18 from the liquid in the drinking container 12.
With reference to
The lid assembly 10 also includes a drink valve 250 operable in a closed state in which liquid from the drinking container 12 is precluded from passing through the drink opening 22 and an open state in which liquid from the drinking container 12 is allowed to pass through the drink opening 22. The drink valve 250 is received in the drink valve opening 242 when in use. The lid assembly 10 also includes a vent valve 252 operable in a closed operating state in which the interior of the drink container is isolated from ambient through the vent valve 252 and an open state in which the interior of the drinking container 12 is in communication with ambient through the vent valve 252. The vent valve 252 is received in the vent valve opening 244 when in use. Both the drink valve 250 and the vent valve 252 can include a resilient component that is deformed when the movable arm 170 is moved toward the drink valve 250 or the vent valve 252, which places the drink valve 250 in the open state and the vent valve 252 in the open operating state.
As more clearly seen in
With reference back to
The lockout mechanism 18 includes the movable member 24, a spring 300, and a retainer 302. The movable member 24 can be in the form of a pin having a post 304 that is inserted through the spring 300 and extends through an opening 306 in the retainer 302. The movable member 24 can also include a widened base 308 that is received in the lockout mechanism recess 226 in the lower body gasket 210. The retainer 302 is used to connect the lockout mechanism 18 with the lid body 14. The lower lid body 32 includes keyed retaining features 312 around the lockout mechanism opening 66 that cooperate with retaining features 314 on the retainer 302 to allow the retainer 302 to be rotated to connect the retainer 302 with the lower lid body 32.
The movable member 24 of the lockout mechanism 18 is configured to engage with the closing mechanism 16 to inhibit movement of the closing mechanism from the closed operating position to the open operating position when pressure in the drinking container 12 exceeds a predetermined threshold. The movable member 24 contacts the movable arm 170 when the pressure in the drinking container 12 exceeds the predetermined threshold. As such, the button 82 and the button cover 84, which are accessible from an exterior of the lid body 14, are precluded from moving when the lockout mechanism is engaged with the closing mechanism. More specifically, when the pressure in the drinking container 12 exceeds the biasing force of the spring 300, and the closing mechanism 16 is in the closed operating position, the movable member 24 is moved into the lockout recess 194 provided in the movable arm 170, which precludes movement of the movable arm toward the drink valve 250 and the vent valve 252.
When the pressure in the drinking container 12 is below the pressure required to overcome the biasing force of the spring 300, the movable member 24 is positioned below the lockout recess 194 on the movable arm 170, which allows for movement of the movable arm toward the drink valve 250 and the vent valve 252. When in this position, the movable arm 170 moves towards the drink valve 250 when the closing mechanism 16 is moved from the closed operating position toward the open operating position to deform the drink valve 250 so as to move the drink valve 250 from the closed state to the open state. Alternatively, the lower body gasket 210 could be configured to bias the movable member 24 toward liquid in the drinking container 12 without the spring 300.
The movable arm 170 is biased toward the drink valve 250 by the biasing spring 192 to maintain the open state until the button 82 or button cover 84 is pressed again to move the closing mechanism 16 from the open operating position to the closed operating position. Similarly, the vent valve 252 is in the closed operating state when the closing mechanism 16 is in the closed operating position, and the vent valve 252 is in the open operating state when the closing mechanism is in the open operating position. The movable arm 170 moves towards the vent valve 252 when the closing mechanism 16 is moved from the closed operating position toward the open operating position to deform the vent valve 252 so as to move the vent valve 252 from the closed operating state to the open operating state. More particularly, the vent valve contact surface 186 contacts the vent passage structure 222, which is formed of a resilient material, and this force is transferred through to the vent valve 252, which also deforms. Similarly, the drink valve contact surface 184 contacts the drink passage structure 220, which is formed of a resilient material, and this force is transferred through to the drink valve 250, which deforms to open the drink valve 250.
The lower body gasket 310 includes a drink passage structure 320 that extends upwardly from the base 312. The drink passage structure 320 is hollow to define at least a portion of the drink passage 214, which is in communication with the drink opening 22. The lower body gasket 310 also includes a vent passage structure 322 which also extends upwardly from the base 312. The vent passage structure 322 is also hollow to define the vent passage 224, which connects the vent opening 38 with the inside of the drinking container 12. The lower body gasket 310 also includes a lockout mechanism recess (not visible in
The drink passage structure 320 defines a drink valve opening 342. The vent passage structure 322 defines a vent valve opening 344. The lower body gasket 310 also includes a first valve arm recess 334 provided in a lower surface 336 of the base 312 which extends from the drink valve opening 342 to the vent valve opening 344. The lower body gasket 310 also includes a second valve arm recess 338 which extends from the drink valve opening 342.
A lid assembly has been described above in particularity with reference to the above figures. The invention, however, is not limited to only the embodiments described above. Instead, the invention is broadly defined by the appended claims and the equivalents thereof.