The present application claims priority of Taiwanese Application No. 102121527, filed on Jun. 18, 2013, the entire disclosure of which is hereby expressly incorporated by reference herein.
1. Field of the Invention
This invention relates to a tea brewing machine, and more particularly to a tea brewing machine capable of setting brewing time.
2. Description of the Related Art
A conventional tea brewing machine disclosed in Taiwanese Patent No. 1272085 includes a main body, a connecting mount having a spring, a securing mount, a cup with a filtering cap, an upper cover, a timer, a driving unit, and a movable unit. The upper cover is rotatable to activate the timer which in turn drives the driving unit and, thus, the movable unit. Hence, the movable unit pushes the connecting mount to move downwardly, so that the cup and the filtering cap are removed from a bottom portion of the main body, thereby immersing tea leaves into hot water in the cup. As soon as the preset time of the timer is reached, the connecting mount is no longer pushed downwardly by the movable unit, and is biased by the spring to move upwardly to separate the tea leaves from the brewed liquid. In this manner, the brewing time can be controlled conveniently.
The object of this invention is to provide another tea brewing machine that can control conveniently the brewing time.
According to this invention, a tea brewing machine includes: an upper cup having an aperture, a sealing plate movable vertically in the upper cup between a sealing position whereat the aperture is sealed by the sealing plate, and a non-sealing position whereat the aperture is not sealed by the sealing plate; a pushing unit disposed under the upper cup unit such that, when the pushing unit is in the non-pushing state, the sealing plate is at the sealing position, and when pushing unit is in the pushing state, the sealing plate is at the non-sealing position; a rotary knob; and a driving block disposed on the rotary knob. When the rotary knob is rotated in a timing direction, the driving block comes into contact with the pushing unit to convert the pushing unit into the pushing state.
As such, when the preset brewing time is reached, the driving block comes into contact with the pushing unit to move the sealing plate to the non-sealing position, so as to allow the brewed liquid to flow from the upper cup into a lower cup, thereby resulting in convenience during use.
These and other features and advantages of this invention will become apparent in the following detailed description of a preferred embodiment of this invention, with reference to the accompanying drawings, in which:
Referring to
The base 1 includes a horizontal base wall 11, a lower surrounding wall 12 extending upwardly from the base wall 11 and defining an accommodating space 10, a partition 13 connected to and disposed in the lower surrounding wall 12, and an annular mounting wall 14 extending laterally from an outer surface of the lower surrounding wall 12. The partition 13 divides the accommodating space 10 into a lower space portion 101 and an upper space portion 102 disposed above the lower space portion 101. The partition 13 has a hole 131 disposed between and in fluid communication with the upper and lower space portions 102, 102. The surrounding wall 12 has a lower end notch 121 and an upper end notch 122. The mounting wall 14 has an indication member 141 disposed on an outer surface thereof. The indication member 141 may be a mark or a projection. The base 1 may consist of a plurality of separate members, or may be formed as one piece.
The upper cup unit 2 is disposed within the upper space portion 102 of the base 1, and includes a hollow cup mounting member 21 disposed on the partition 13, a circular tube 22, an upper cup 23 disposed removably within the cup mounting member 21, a cap 24 covering removably a top end of the upper cup 23, a gasket 25 disposed in the upper cup 23, a sealing plate 26 disposed in the upper cup 23 and located above and abutting against the gasket 25, and a filtering net 27 disposed in the upper cup 23 and located above and abutting against the sealing plate 26.
With further reference to
The upper cup 23 has a bottom wall 231, a surrounding wall 232 extending upwardly from a periphery of the bottom wall 231, and a handle 233 extending through the upper end notch 122 in the cup mounting member 21 and having a portion exposed from the base 1. The bottom wall 231 has an aperture 234 aligned with the opening 214 in the cup mounting member 21. Alternatively, the cup mounting member 21 and base 1 may be formed as one piece.
The gasket 25 is made of a deformable silicone material, is fitted in the aperture 234 in the upper cup 23, is disposed directly above the circular tube 22, and has an inner ring portion 251, an outer ring portion 252 disposed around and spaced apart the inner ring portion 251, and a plurality of connecting portions 253 connected between the inner and outer ring portions 251, 252 and spaced apart from each other, so as to define a plurality of passages 254 each disposed among the inner and outer ring portions 251, 252 and two adjacent ones of the connecting portions 253. In this embodiment, the outer ring portion 252 is formed with an annular groove 255 (see
The sealing plate 26 is a horizontal plate, and is disposed for sealing the aperture 234. The filtering net 27 is disposed for receiving tea leaves, and may be shaped as a flat plate or a bowl having a circular, rectangular, or triangular cross-section.
The pushing unit 3 is disposed under the upper cup unit 2, and includes a pushing member 31 movable vertically on the pushing member 31, a pushing post 32 disposed on and above the pushing member 31, and a pivotable member or seesaw member 5 disposed under the pushing member 31. The pushing member 31 is generally M-shaped, and has two upright pushed sections 311 disposed outwardly of the circular tube 22, two inclined extension sections 312 extending respectively from upper ends of the upright pushed sections 311 toward each other and connected to each other at lower ends of the inclined extension sections 312, and two holding sections 313 extending respectively from the inclined extension sections 312 and spaced apart from each other. The extension sections 312 extend into the circular tube 22 through the slide slots 222, respectively, such that the extension sections 312 can move vertically along the slide slots 222. The pushing post 32 is disposed on and above the extension sections 312, extends through the aperture 234 in the upper cup 23 to connect co-movably with the sealing plate 26, and has two open-ended vertical slots 321 (see
With further reference to
With further reference to
The rotary knob 41 is operable to rotate in a setting direction (i.e., clockwise direction) 71 or a timing direction (i.e., counterclockwise direction) 72 that is opposite to the setting direction 71. In this embodiment, the rotary knob 41 has a circular outer upright walls 411, and a rotatable surrounding wall 412 extending from a periphery of the outer upright wall 411 toward the upper cup unit 2. The outer upright wall 411 has a mounting side surface 413 facing the pushing unit 3. An outer surface of the rotatable surrounding wall 412 is provided with a timing graduation 414. The timing graduation 414 may be a mark or a projection.
The hollow fixed member 42 has an inner upright wall 421 disposed between the outer upright wall 411 and the upper cup unit 2 and having a through hole 421′ (see
The driving block 43 is disposed pivotally on the mounting side surface 413 of the rotary knob 41, and has a connecting portion 431 and a pushing portion 432 connected to the connecting portion 431. The driving block 43 has a curved pushing side surface 433 and a flat stop side surface 434 that are opposite to each other and that are positioned such that, when the rotary knob 41 is rotated in the setting direction, the stop side surface 434 comes into contact with the pressed section 52 of the pivotable member 5, and when the rotary knob 41 is rotated in the timing direction 72, the pushing side surface 433 comes into contact with the pressed section 52 of the pivotable member 5.
The rotation limiting block 44 is contactable with the stop side surface 434 of the driving block 43 for limiting the rotational angle of the driving block 43 when rotated in the setting direction 71. The timing unit 45 is disposed in the hollow fixed member 42, and activates the bell unit 46 to generate sound when a preset brewing time is reached. Since the timing unit 45 and the bell unit 46 are not pertinent to this invention, further description thereof will be omitted.
With particular reference to
The pushing unit 3 is convertible between a non-pushing state shown in
With particular reference to
Subsequently, when the rotary knob 41 is rotated in the setting direction 71, the timing graduation 414 is rotated away from the indication member 141. The more the rotational angle of the timing graduation 414 is, the more the brewing time will be. The brewing time can be set according to the needs of the user. At an initial stage of rotation of the rotary knob 41 in the setting direction 71, the driving block 43 is rotated counterclockwise relative to the rotary knob 41, and is moved on the pressed portion 521 of the pivotable member 5, as shown by the phantom lines in
When the rotary knob 41 is rotated to a preset position shown in
During automatic rotation of the rotary knob 41 in the timing direction 72, the curved pushing side surface 433 of the driving block 43 comes into contact with the second side 524 of the pressed portion 521 of the pivotable member 5 to rotate clockwise relative to the rotary knob 41, and subsequently, the flat stop side surface 434 of the driving block 43 comes into contact with the rotation limiting block 44, so that a further clockwise rotation of the driving block 43 relative to the rotary knob 41 is prevented. Hence, the curved pushing side surface 433 of the driving block 43 pushes downwardly the pressed portion 521 of the pivotable member 5 to thereby rotate the pivotable member 5 clockwise, as shown in
In this embodiment, during a tea brewing operation, the time required for moving the driving block 43 from the first side 523 to the second side 524 is several seconds. That is, the pushing unit 3 is maintained in the non-sealing state for several seconds. This time period is enough to allow the brewed liquid to flow completely from the upper cup 23 into the lower cup 6. Upon a lapse of the time period, the bell unit 46 is activated.
During rotation of the rotary knob 41 in the timing direction 72 from the position shown in
It should be noted that, since the driving block 43 is disposed pivotally on the rotary knob 41, it can move from the position shown by the solid lines in
In view of the above, through design of the timer device 4, the driving block 43, and the pushing unit 3, when the preset brewing time is reached, the sealing plate 26 can be automatically moved from the sealing position to the non-sealing position to thereby allow the brewed liquid to flow from the upper cup 23 into the lower cup 6, thereby resulting in convenience during use of the tea brewing machine.
With this invention thus explained, it is apparent that numerous modifications and variations can be made without departing from the scope and spirit of this invention. It is therefore intended that this invention be limited only as indicated by the appended claims.
Number | Date | Country | Kind |
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102121527 | Jun 2013 | TW | national |