JPH0535020U - Beverage extractor safety device - Google Patents

Abstract

(57) [Abstract] [Purpose] A water heater and a liquid container are installed side by side on a base, and the outlet of the water heater is exposed to the opening of the filter above the liquid container to discharge hot water into the filter for extraction. This is to prevent hot water from the discharge port from accidentally spilling outside in a beverage extractor in which the beverage is dropped into a liquid container. [Structure] A switch for detecting that the outlet 12 of the water heater 2 is in a position facing the upper end opening 14 of the filter 13 and a switch for detecting the presence or absence of a liquid container such as the air pot 3 are provided. A control device that electrically detects whether each detection switch is activated and outputs a required alarm is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a safety device for a beverage extractor such as coffee or tea.

[0002]

[Prior Art]

 An electric water heater and a hand pot are installed on the base, a filter that also serves as a plug is installed in the hand pot, the outlet of the water heater faces the opening on the top of the filter, and the hot water that comes out of the outlet is inside the filter. Beverage extractors for extracting beverages such as coffee into a hand pot by pouring into the pot have been conventionally known.

In the conventional beverage extractor as described above, the water heater is rotatably installed on the base so that the direction of the outlet of the water heater can be changed. This can be used not only for the purpose of discharging the hot water from the water heater in the hand pot side with the discharge port facing sideways, but also for the purpose of discharging the hot water into the teapot with the discharge port facing forward. To do so.

Further, the hand pot is detachably installed on the base so that the beverage such as coffee can be carried to another place after being extracted.

[0005]

[Problems to be solved by the device]

 As mentioned above, the discharge port of the water heater may be directed forward and the hot water may be discharged into a teapot, so that the discharge port of the water heater does not always face the handpot.

[0006] Therefore, there is a risk that when trying to extract a beverage such as coffee, the hot water is accidentally discharged without receiving a teapot or the like with the discharge port facing forward.

Further, when the hot water is discharged from the water heater to the hand pot, if the hand pot is not installed, or if the hand pot is installed but the installation state is not normal, the hot water discharged from the discharge port is opened. May not spill properly and may spill outside.

Therefore, an object of the present invention is to solve these problems in the beverage extractor and improve the safety in use.

[0009]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention provides a water heater and a liquid container on a base, a filter that also serves as a stopper is provided in the liquid container, and the discharge port of the water heater is the filter of the above-mentioned filter. In a beverage extractor that faces the upper end opening, a detection switch that detects that the outlet of the water heater is in a position that faces the upper opening of the filter, and a detection that detects whether the liquid container is installed or not. A switch is provided, and a control device for electrically detecting the presence or absence of the operation of each of these detection switches and outputting a required alarm signal is provided.

[0010]

[Action]

 The beverage extractor safety device with the above-mentioned configuration is inaccurate when the position of the discharge port does not correctly face the upper opening of the filter, the liquid container is not installed, or the installation state is incorrect. In that case, a predetermined arm is output to notify the user.

[0011]

【Example】

 The beverage extractor of the embodiment is a coffee extractor in which an electric water heater 2 and a heat-retaining air pot 3 are arranged side by side on a base 1 as shown in FIG. 1, and the air pot 3 is a base 1 It is detachably installed in a shallow recess 4 provided on the upper surface.

A discharge arm 5 is provided at the upper end of the water heater 2 so as to be biased toward the air pot 3 side so as to be rotatable within a range of about 90 degrees in a horizontal plane. The rotary shaft 6 of the discharge arm 5 is inserted into the bearing portion 8 of the shoulder body 7 of the water heater 2 as shown in FIGS. 2 to 4, and the discharge pipe 9 is provided through the inside of the rotary shaft 6. One end of the discharge pipe 9 is inserted into the internal container 11 (FIG. 2), and the other end is connected to the hot water discharge port 12 through the inside of the discharge arm 5.

When the discharge arm 5 is rotated toward the air pot 3 side as shown by the chain double-dashed line in FIG. 1, the hot water discharge port 12 at the tip of the filter 13 which also serves as a plug body of the air pot 3 is provided. It faces the opening 14 provided on the upper end surface.

In the air pot 3 described above, a bellows pump is housed inside a cylindrical case 16 provided on the front surface of the shoulder body 15. When the push button 17 at the upper end of the bellows pump is pushed down, the inner container of the air pot 3 is closed. The internal pressure rises, and coffee is discharged from the beverage discharge port 20.

The internal structure of the air pot 3 is publicly known except for the portion of the filter 13 that also serves as a plug (see, for example, Japanese Utility Model Laid-Open No. 1-79433), and has no direct relation to this invention. Therefore, its description is omitted.

The recess 4 on the base 1 is provided with a detection switch 18 for detecting whether the air pot 3 is installed or not and whether the installation state is normal.

Further, as shown in FIG. 4, a protrusion 19 is formed on the lower end of the rotary shaft 6 of the discharge arm 5, and whether or not the discharge arm 5 correctly faces the air pot 3 near the protrusion 19 is checked. A detection switch 21 for detecting is attached. The detection switch 21 operates when the armature 22 is pushed by the protrusion 19 when the discharge arm 5 is correctly oriented in the direction of the air pot 3 as shown by the solid line in FIG. 4, but as shown by the chain double-dashed line. It will not work if it is misaligned.

Next, the internal structure of the filter 13 that also serves as a plug of the air pot 3 will be described. As shown in FIGS. 5 to 7, the filter 13 includes a cam body 27 having a filter body 23, a lid 24, a base 25, and a lever 26 protruding from the outer peripheral edge thereof, an opening / closing member 28, and a pair of engaging claw members 29. , 29, etc.

The filter main body 23 is provided with a tapered storage portion 31 therein, and the filter pack 32 is stored in the storage portion 31. An extraction cylinder 33 is provided at the bottom of the bottom of the storage unit 31 and an extraction hole 34 is provided at the lower end of the extraction cylinder 33. Further, a valve rod 35 is provided inside the extraction hole 34, and a valve member 36 is attached around the valve rod 35 protruding downward.

The lid 24 is detachably attached to the upper end of the filter body 23. The above-mentioned opening 14 is provided in the center of the lid 24, and the hot water poured into the opening 14 drops onto the filter pack 32.

The base 25 is fitted and fixed to the lower end of the above-mentioned filter body 23, and the outer cylindrical portion 37 is provided at the lower end thereof. As shown in FIG. 10, the outer cylinder portion 37 has a semi-cylindrical shape, and is fitted in a fitting recess 38 provided in the shoulder body 15 of the air pot 3. Stepped portions 39, 39 are formed at two centrally symmetrical locations on the bottom surface inside the outer cylindrical portion 37, and the engaging claws 55 at the tips of the engaging claw members 29, 29 are inserted into the respective stepped portions 39, 39. Claw holes 40, 40 are provided. Positioning protrusions 44 are provided on the outer peripheral surface of the cutout portion of the outer cylinder portion 37, and are fitted in the positioning recesses 50 of the fitting recesses 38 to position the filter 13 relative to the air pot 3. Do.

Further, as shown in FIG. 7, a pair of guide plates 41 are provided on both sides of each of the claw holes 40 on the upper surface of the claw holes 40, 40.

Further, a middle cylinder portion 42 is provided on the inner circumference of the outer cylinder portion 37. An upper end of the middle tubular portion 42 is opened, and a packing 43 (FIG. 5) is fitted on the lower surface thereof. The packing 43 is closely attached to the periphery of the opening 44 at the lower end of the fitting recess 38 of the air pot 3.

An inner cylinder portion 45 (FIG. 5) is provided inside the middle cylinder portion 42. The valve rod 35 and the valve member 36 described above are inserted into the inner cylindrical portion 45 with a required space.

As shown in FIGS. 5 and 7, the opening / closing member 28 has an outer cylinder portion 46 and an inner cylinder portion 47 whose lower ends are open, and projections 48 are provided on both sides of the upper end. The outer cylinder portion 46 is inserted inside the middle cylinder portion 42 of the base 25, the inner cylinder portion 47 is fitted outside the extraction cylinder 33 of the filter body 23, and the lower end portion thereof is the inner cylinder portion of the base 25. It is inserted inside 45. The O-rings 30 and 30 '(Figs. 14 and 15) seal the space between the extraction cylinder 33 and the inner cylinder portion 47 and the space between the inner cylinder portion 47 and the inner cylinder portion 45, respectively.

A valve hole 49 is provided at the lower end of the inner cylinder portion 47, and the valve member 36 is penetrated through the valve hole 49 with a required gap.

Further, a coil spring 51 is interposed between the bottom portion of the base 25 and the opening / closing member 28, thereby biasing the opening / closing member 28 upward.

The engaging claw members 29, 29 are mounted on the ribs 52 inside the guide plates 41, 41 and are fitted so as to be slidable in the radial direction (FIG. 11). Each engaging claw member 29 has an inwardly opening spring receiving portion 53 (FIG. 7), a protrusion 54 serving as a cam follower is provided at the upper end of the spring receiving portion 53, and an engaging claw is provided at the lower end. 55 is provided. The engaging claw 55 is projected downward from the aforementioned claw hole 40 (FIG. 10). One end of the coil spring 56 housed in the above-mentioned vane receiving portion 53 is brought into contact with the middle tubular portion 42, and the engaging claw members 29, 29 are urged radially outward. Therefore, the engaging claw 55 is locked to the engaging rib 57 (FIG. 10) provided on the inner surface of the fitting recess 38 of the air pot 3.

As shown in FIGS. 7, 8, 12, and 13, the cam member 27 is provided with a fan-shaped portion 59 integrally on a part of the outer peripheral side of the disk portion 58, and a lever-shaped portion 59 is provided on the outer peripheral surface of the fan-shaped portion 59. 26 is projected, and the lever 26 is inserted into a horizontal slit 61 (FIG. 1) provided on the outer peripheral wall of the filter body 23. Further, three support arms 62 are horizontally provided on the outer periphery of the disk portion 58 so that the tips of the respective support arms 62 are engaged with the upper edge of the filter body 23 (FIG. 5), and the lever 26. The cam member 27 can be rotated within a range of about 90 degrees by horizontally rotating the cam member with a fingertip.

An opening 63 is provided at the center of the disc portion 58, and the extraction cylinder 33 of the filter body 23 is inserted into the opening 63. As shown in FIG. 8, a cylindrical reinforcing wall 64 surrounding the opening 63 is provided on the lower surface of the disk portion 58, and a pair of engaging / disengaging cams are provided on the outer side of the reinforcing wall 64 at symmetrical positions. 65 is provided. Further, a pair of opening / closing cams 66 are provided along the inner circumference of the reinforcing wall 64 at two locations which are also symmetrical with respect to the center.

The engaging / disengaging cam 65 actuates the engaging claw member 29 in the radial direction to disengage the filter 13 from the engaging rib 57 of the fitting recess 38 of the air pot 3. As shown in FIG. 12, it has a large-diameter cam surface 67 and a small-diameter cam surface 68 that is smoothly continuous to one end of the large-diameter cam surface 67. The protrusion 54 as a cam follower of the engaging claw member 29 is pressed against these cam surfaces 67 and 68. When the protruding portion 54 is pressed against the large-diameter cam surface 67, the engaging claw member 29 is located at the outermost position, so that the engaging claw 55 is locked by the engaging rib 57 (FIG. 5 and FIG. (Fig. 14). Further, when the protruding portion 54 is pressed against the small diameter cam surface 68 (see the chain double-dashed line in FIG. 13), the engaging claw 55 is disengaged from the engaging rib 57 (FIG. 15).

The opening / closing cam 66 operates the above-mentioned opening / closing member 28 in the vertical direction to open / close the valve hole 49. The opening / closing cam 66 has a trough portion 69 (see FIG. 1) on the lower end surface of each opening / closing cam 66. 6), and a shallow recess 72 is provided at the upper end of a mountain portion 71 continuous to the valley portion 69, and projections 48 as cam followers protruding on both sides of the upper end portion of the opening / closing member 28 are provided at these portions. Pressed.

The opening / closing member 28 is at the highest position when the protrusion 48 is at the bottom of the valley 69 (FIG. 16 a), and in this state, the relationship between the engagement / disengagement cam 65 and the protrusion 54 is as shown in FIG. Thus, the protruding portion 54 contacts the large-diameter cam surface 67, and the engaging claw 55 is locked by the engaging rib 57 (FIG. 5). Therefore, in this state, the filter 13 is locked and the valve hole 49 is opened. Hereinafter, this state is referred to as "extraction state".

When the protrusion 54 enters the cam surface forming the valley 69, the protrusion 54 naturally moves to a stable state corresponding to the bottom of the valley 69 and surely enters the extraction state.

In the state of FIG. 16b in which the above-mentioned protrusion 54 is fitted in the shallow recess 72 at the upper end of the mountain portion 71, the opening / closing member 28 is at the lowest position. Further, in this state, the relationship between the opening / closing cam 66 and the protrusion 54 is that the protrusion 54 hits the large-diameter cam surface 67 as shown in FIG. It is in a state of being locked to the mating rib 57 (Fig. 14). Therefore, in this state, the filter 13 is locked and the valve hole 49 is closed by the valve member 36. For this reason, the inside of the air pot 3 becomes airtight, and when the push button 17 of the bellows pump is operated, the internal pressure rises and the coffee inside can be discharged. Hereinafter, this state is referred to as a "discharge state".

Further, the state of FIG. 16c in which the above-mentioned protruding portion 54 is raised to the end on the opposite side of the valley portion 69 is an unstable state, and therefore, this state is maintained by pressing the lever 26 with a fingertip. In this state, the opening / closing member 28 is at the lowest position, and the relationship between the engagement / disengagement cam 65 and the protrusion 54 is that the protrusion 54 hits the small-diameter cam surface 68, as indicated by the chain double-dashed line in FIG. Therefore, the engaging claw 55 is disengaged from the engaging rib 57 (FIG. 15). Therefore, in this state, the filter 13 is unlocked and the valve hole 49 is closed. Therefore, the filter 13 can be separated and removed from the air pot 3. Further, at this time, it is possible to prevent drips from spilling from the valve hole 49. Hereinafter, this state is referred to as a “separated state”.

On the other hand, in the electric device of the coffee extractor described above, the boiling water heater 73, the warming heater 74, the relay contact 75 for turning on and off the boiling water heater 73, the winding 76, and the motor 77 are shown in the circuit diagram of FIG. And a control circuit 79 including a microcomputer 78. The detection switches 18 and 21 are connected to the microcomputer 78.

As shown in FIG. 1, an auto switch 81, a timer switch 82, a reboiler switch 83, and corresponding display lamps 84, 85, 86 are provided on the front surface of the water heater 2. The switches 81, 82, 83 and the display lamps 84, 85, 86 are connected to the microcomputer 78, respectively.

FIG. 18 is a state transition diagram of the water heater 2, and FIGS. 19 to 21 are flowcharts based on a program of the microcomputer 78.

The flowchart of FIG. 19 is a flow when the auto switch 81 is pressed, and when the detection switch 21 of the discharge arm 5 is not operating, the error notification 1 is output. If the detection switch 18 for determining whether or not the air pot 3 is installed and whether or not the air pot 3 is normally installed is not operating, the error notification 2 is output.

These error notifications 1 and 2 can be distinguished from each other by sending them by distinguishing the timbre of the buzzer or by changing the blinking method of the alarm lamp. ..

The above-described flow is executed in any of the timer mode, the boiling water mode, the heat retention mode, and the auto mode when the auto switch 81 is pressed and before the motor 77 is driven in the auto mode. Be done.

The flow based on the reboil mode in FIG. 20 is executed when the reboil switch 83 is operated, but is also executed when the auto switch 81 is operated in the heat retaining mode. (See the state transition diagram of FIG. 19). This is because the heat retention temperature is usually 95 degrees, which is lower than the boiling temperature, so the extraction temperature of coffee is too low, and because the extraction temperature changes, the problem of inconsistent coffee quality is eliminated. Is.

In the auto mode of FIG. 21, the 4-minute timer is provided because the bubbles are mixed in the hot water immediately after boiling, and the bubbles may be caught in the motor 77 and the discharge may not be possible. This is because the motor 77 is driven after waiting for the disappearance of bubbles. In addition, the operation of driving the motor 77 for 14 seconds and then resting for 20 seconds is repeated 9 times. This is because intermittent extraction of coffee results in a coffee with better taste than continuous extraction. This is because it can be extracted.

Although the coffee extractor has been described in the above embodiment, the basic structure of the extractor for black tea, green tea, barley tea, etc. is the same, and the program of the microcomputer 78 is changed according to the characteristics of each drink. Just change it.

[0046]

[Effect of the device]

 As described above, this device outputs an alarm when the direction of the outlet of the water heater is not normal, or the liquid container such as the air pot is not installed or the installation is not normal. There is no risk of hot water spilling outside, which has the effect of increasing operational safety.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment.

FIG. 2 is a partial vertical sectional view of the above.

FIG. 3 is a partially enlarged vertical sectional view of the above.

FIG. 4 is a partially enlarged transverse plan view of the same as above.

FIG. 5 is a partial vertical sectional view of the above.

FIG. 6 is a partially exploded perspective view of the above.

FIG. 7 is a partially exploded perspective view of the above.

FIG. 8 is a bottom side perspective view of the cam member of the above.

FIG. 9 is a partially cutaway perspective view of the above base.

FIG. 10 is a partially exploded perspective view of the above.

FIG. 11 is a sectional view of a portion of the engaging claw member of the above.

FIG. 12 is a bottom view of the cam member of the above.

FIG. 13 is a bottom view of the cam member of the above.

FIG. 14 is a partial vertical sectional view of the above.

FIG. 15 is a partial vertical sectional view of the above.

16 (a) to (c) are diagrams showing the positional relationship between the engagement and disengagement cams and the protrusions.

FIG. 17 is a circuit diagram of the same as above.

FIG. 18 is a state transition diagram of the above.

FIG. 19 is a flowchart of the above.

FIG. 20 is a flowchart of the above.

FIG. 21 is a flowchart of the above.

[Explanation of symbols]

 1 Base 2 Water Heater 3 Air Pot 4 Recess 5 Discharge Arm 6 Rotation Shaft 7 Shoulder 8 Bearing 9 Discharge Pipe 11 Inner Container 12 Hot Water Discharge Port 13 Filter 14 Opening 15 Shoulder 16 Case 17 Push Button 18 Detection Switch Reference Signs List 19 Protrusion 20 Beverage outlet 21 Detection switch 22 Armature 23 Filter body 24 Lid 25 Base 26 Lever 27 Cam member 28 Opening / closing member 29 Engaging claw member 30, 30 'O-ring 31 Storage section 32 Filter pack 33 Extraction tube 34 Extraction hole 35 Valve rod 36 Valve member 37 Outer cylinder part 38 Fitting recess 39 Step part 40 Claw hole 41 Guide plate 42 Middle cylinder part 43 Packing 44 Protruding part 45 Inner cylinder part 46 Outer cylinder part 47 Inner cylinder part 48 Projection 49 Valve hole 50 Positioning recess 51 Coil spring 52 Rib 53 Spring receiving portion 54 Projection 55 Engagement Claw 56 Coil Spring 57 Engagement Rib 58 Disk Part 59 Fan-shaped Part 61 Slit 62 Support Arm 63 Opening 64 Reinforcement Wall 65 Engagement / Disengagement Cam 66 Opening / Closing Cam 67 Large Diameter Cam Surface 68 Small Diameter Cam Surface 69 Valley 71 Mountain 72 Recess 73 Heater for heating 74 Heater heater 75 Relay 76 Winding 77 Motor 78 Microcomputer 79 Control circuit 81 Auto switch 82 Timer switch 83 Reboiling switch 84 Indicator lamp 85 Indicator lamp 86 Indicator lamp

Front page continuation (72) Yoshihiro Saito, Yoshihiro Saito, 5-52-2 Jingumae, Shibuya-ku, Tokyo JBP Oval UCC Uejima Coffee Co., Ltd. Tokyo head office (72) Masakatsu Yamauchi 5-chome Uenomachi, Tajimi-shi, Gifu Prefecture No. 5 Tanaka Electric Co., Ltd. (72) Inventor Seikatsu Yoneda 1-20-5 Tenma, Kita-ku, Osaka-shi, Osaka (72) Inside Mahobin Co., Ltd. (72) Yoshinori Takahashi 1 Tenma, Kita-ku, Osaka-shi, Osaka 20-5, Zojirushi Mahobin Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A beverage in which a water heater and a liquid container are installed on a base, a filter also serving as a plug is provided in the liquid container, and a discharge port of the water heater faces the upper opening of the filter. In the extractor, a detection switch for detecting that the outlet of the water heater is in a position facing the upper end opening of the filter, and a detection switch for detecting the presence or absence of the liquid container are provided, and each of these detection switches A safety device for a beverage extractor, which is provided with a control device for electrically detecting the presence or absence of operation of the beverage extractor and outputting a required alarm signal.