Mobile washing machine for horizontal food mixers

The mobile washing machine with a trolley and oscillating link mechanism addresses nozzle clogging and inefficient cleaning in horizontal food mixers by providing efficient, safe, and adjustable cleaning solutions for food storage tanks.

JP7862896B1Active Publication Date: 2026-05-20NAKAI KIKAI INDS
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
NAKAI KIKAI INDS
Filing Date
2025-06-05
Publication Date
2026-05-20

AI Technical Summary

Technical Problem

Existing washers for horizontal food mixers face issues such as nozzle clogging due to food and oil mist adherence, inefficient cleaning due to design limitations, and prolonged cleaning times, especially with drum-type mechanisms and complex cleaning apparatuses.

Method used

A mobile washing machine with a trolley, motor pump, and U-shaped cover case equipped with cleaning water spray nozzles, oscillating link mechanism, and brushless motor to efficiently clean the food storage tank of horizontal food mixers, including automatic and manual cleaning options.

Benefits of technology

Ensures thorough and efficient cleaning of the food storage tank, reducing cleaning time and preventing nozzle clogging, while allowing for safe and convenient operation with adjustable height and positioning features.

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Abstract

Applicable to horizontal food mixers, allowing for efficient and thorough cleaning of the food storage tank. [Solution] The system comprises a trolley (28) equipped with a motor pump (P) and a manual operating handle (43), a machine casing (29) integrally erected from the trolley, a rear-opening cover case (30) detachably attached and fixed to the top of the machine casing, a water supply pipe (50) with a cleaning water spray nozzle (62) horizontally mounted inside the cover case, and a discharge pipeline (48) arranged in the cover case to connect the water supply pipe to the cleaning pump (38) of the motor pump. The opening edge of the cover case is inserted and fitted from the front into the opening edge of the food storage tank (4) which is tilted downwards at the front of the horizontal food mixer (M), and the inside of the food storage tank is cleaned by the cleaning water sprayed from the nozzle.
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Description

Technical Field

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[0001] The present invention relates to a mobile washer for a horizontal hood mixer that stirs various ingredients such as vegetable salads, minced meat, custard cream, fillings for Japanese confectionery, and other various food ingredients.

Background Art

[0002] <了 Regarding washers for hood mixers that stir or heat and stir food ingredients, Patent Documents 1 and 2 have been proposed.

[0003] The cleaning mechanism (8) of the heating and stirring cooking device described in Patent Document 1 has a plurality of nozzles (43) installed inside the cover part (10) of the drum (3) incorporating the stirring mechanism (7). During cleaning after cooking, while driving the stirring mechanism (7), cleaning water is sprayed from the nozzles (43) toward the bread part (9), the rotating shaft (24), and the stirring blades (26) inside the drum (3). It is considered to be approximated to the present invention in this respect. <00亮00013>

[0004] Also, in the cleaning device described in Patent Document 2, the cleaning tank (1) of the stirrer (whipper) (6) is supported by a carrier-equipped pedestal (6) having a plurality of legs (62), and it is set and used on the mixer main body (a) during cleaning of the stirrer. It is considered to be approximated to the present invention in this respect.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, the heating and stirring cooking device described in Patent Document 1 is a drum-type stirring mechanism for stir-frying dishes such as stir-fried vegetables, fried rice, and fried noodles. During cooking, the cover (10) of the drum (3) seals the pan (9) from above. As a result, the multiple nozzles (43) installed in the center of the inside of the cover (10) are constantly facing the stirring blades (26). Consequently, food and oil mist during stirring repeatedly adhere to the nozzles (43), inevitably causing clogging and contamination.

[0007] In that case, even if the cover (10) of the drum (3) is removed from the pan (9) after cooking and the nozzle (43) attached to the cover (10) is cleaned, there is a problem in that this process must be performed frequently every time.

[0008] Furthermore, a food discharge port (12) is provided on the rear surface of the pan section (9) that forms the drum (3), and multiple burners that constitute the heating mechanism (6) are installed in parallel on the bottom surface of the drum (3), which cannot tip over. Therefore, even if the drum (3) is tilted so that it is higher in the front and lower in the rear, it is not possible to smoothly and completely discharge the cleaning water from the stirring mechanism (7) from the pan section (9).

[0009] On the other hand, the cleaning apparatus described in Patent Document 2 targets a stirring bar (whipper) (b) assembled in a cage shape from wire material that is difficult to clean. Therefore, the cleaning tank (1) is in the form of a bowl-shaped pot with an upward opening at all times, and cleaning water is stored inside, into which the stirring bar (whipper) (b) is immersed. As a result, it takes a long time to complete the cleaning, and there is a problem that it cannot be cleaned quickly and efficiently. [Means for solving the problem]

[0010] The present invention aims to solve these problems, and in order to achieve this objective, claim 1 provides a trolley equipped with a motor pump and a manual operating handle, a cover case with a U-shaped cross-section and an open rear, which is detachably attached and fixed to the upper part of a machine casing that stands integrally from the trolley, and a horizontal frame inside the cover case Furthermore, multiple cleaning water spray nozzles are installed.The water supply pipes, Exposed from one side wall of the above cover case One end of the water supply pipe and the above In order to connect the motor pump to the cleaning pump, the Cover case Piece It is equipped with discharge pipes arranged on the side wall,

[0011] The opening edge of the cover case is inserted and fitted from the front into the opening edge of the food storage tank of the horizontal food mixer, which is tilted downwards at the front.

[0012] The cleaning water sprayed from the cleaning water nozzle of the above-mentioned water supply pipe can be used to clean the entire contents of the food storage tank, including the stirring blades and their shafts. A mobile washing machine for horizontal food mixers,

[0013] the above Both ends of the water supply pipe are pivotally supported on both side walls of the cover case, and one end of the water supply pipe exposed from one side wall of the cover case is pivotally connected to the upper end of the discharge pipeline of the cleaning pump by a rotary joint so that the water supply pipe can rotate,

[0014] The output shaft of the brushless motor, which is mounted and fixed to the same side wall of the cover case mentioned above, and one end of the water supply pipe are pivotally connected by a swing link mechanism.

[0015] The water supply pipe is characterized in that, via the link mechanism which is oscillated reciprocally in the vertical direction by the brushless motor, it is set to rotate so that the cleaning water spray nozzle oscillates by a certain angle.

[0016] Claim 2 Then, the water supply pipes are arranged horizontally in a pair, one above the other, and the same end of each water supply pipe is pivotally connected to the discharge pipe of the cleaning pump using a rotary joint,

[0017] The same end of both water supply pipes is pivotally connected to the output shaft of a common brushless motor by the first and second link arms of the oscillating link mechanism.

[0018] It is characterized in that the brushless motor is defined to rotate both water supply pipes in the same direction at once.

[0019] Claim 3 In [claim number], it is characterized in that, in addition to the rigid first discharge pipeline communicatively connected to the cleaning pump by a water supply pipe, a flexible second discharge pipeline communicatively connected to a hand-held cleaning gun or a foam gun can also be arranged in parallel piping. <0​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​ If the configuration of claim 3 is adopted, it is also possible to use a handheld cleaning gun or foam gun. Therefore, even if there are any areas that are not cleaned by the automatic cleaning using the cleaning water spray nozzle of the water supply pipe, the handheld cleaning gun can be moved freely to completely clean every corner of the food storage tank, or the food storage tank can be foam-cleaned with the handheld foam gun, further improving convenience.

[0030] Furthermore, if the configuration of claim 4 is adopted, the proximity sensor installed on the mounting frame of the food mixer detects the position of the detection plate installed on the positioning plate of the washing machine, thereby knowing the state of readiness for washing, in which the cover case on the washing machine side is inserted and fitted into the food container tank on the food mixer side. Therefore, it is only necessary to bring the washing machine's cart close to the food mixer and insert the positioning plate of the cart into the mounting frame of the food mixer, which ensures that anyone can safely perform the washing operation at all times.

[0031] If the configuration of claim 5 is adopted, the washing machine can be kept in a stable and fixed position relative to the food mixer by pressing down on the foot jack attached to the trolley, thus contributing to the safety of the washing operation.

[0032] Adopting the configuration of claim 6 has the effect of allowing adjustment of the mounting height of the cover case. [Brief explanation of the drawing]

[0033] [Figure 1] This is a front view illustrating a horizontal food mixer to which the present invention is applied. [Figure 2] This is a side view showing the food container tank of the above-mentioned food mixer in an inverted state. [Figure 3] This is an enlarged cross-sectional view of Figure 1. [Figure 4] Figure 3 is a cross-sectional plan view. [Figure 5] This is a left side view of Figure 3. [Figure 6] This is a right side view showing a portion of Figure 3 cut away. [Figure 7] This is a schematic inclined view of the entire mobile washing machine according to an embodiment of the present invention. [Figure 8] Figure 7 is a front view. [Figure 9] This is a plan view of Figure 8. [Figure 10] This is a slanted view showing the cover case of the washing machine described above, extracted from the image. [Figure 11] This is a slope view from the right side of Figure 10. [Figure 12] This is a diagram of the piping system for the cleaning process using the motor pump of the cleaning machine. [Figure 13] This is a front view of the cover case in which the first discharge pipeline of the cleaning pump is arranged. [Figure 14] This is a rear view of Figure 13. [Figure 15] This is a plan view of Figure 14. [Figure 16] This is a side view of Figure 13. [Figure 17]This is an enlarged cross-sectional view along line 17-17 in Figure 13. [Figure 18] This is an enlarged cross-sectional view along line 18-18 in Figure 16. [Figure 19] This is a slanted view showing the extracted oscillating link mechanism of a water supply pipe using a brushless motor. [Figure 20] This is a slope view showing the first discharge pipeline extracted from the above. [Figure 21] Figure 20 is a front view seen from the diagonal left side. [Figure 22] This is an enlarged front view showing the control panel. [Figure 23] This is a schematic inclined view of the entire setup when the washing machine is docked to the food mixer. [Figure 24] Figure 23 is a cross-sectional view of the main part. [Figure 25] This is a working plan view showing the inside of the food container tank in the food mixer described above. [Figure 26] Figure 25 is a cross-sectional front view showing the cleaning action inside the tank by the cleaning water spray nozzle. [Figure 27] Figure 26 is a side cross-sectional view, which also shows the cleaning action inside the tank by the spray nozzle. [Modes for carrying out the invention]

[0034] Preferred embodiments of the present invention will be described in detail below with reference to the drawings. First, a horizontal food mixer (M) to which the present invention is applied will be described. This mixer includes a drive box (2) containing a drive motor (1) for rotating the stirring blade shaft, as illustrated in Figures 1 to 6, a tank support box (3) containing a tilting mechanism (R) for the food storage tank, and a food storage tank (4) that is pivotally mounted between the left and right sides of the two boxes (2) and (3) so as to be able to tilt around a horizontal axis (XX). The two boxes (2) and (3) are erected integrally from a mounting frame (5), and the mounting height is adjustable by screw legs (6) of the frame (5).

[0035] Inside the food storage tank (4) described above, a pair of stirring blade shafts (7a) and (7b) are horizontally mounted in parallel. Each stirring blade shaft (7a) and (7b) passes horizontally through the food storage tank (4), and both of its left and right ends are pivotally supported to the food storage tank (4) by bearing flange units (9) equipped with oil seals (8). (10) is a stirring blade attached and fixed in multiples to each of the stirring blade shafts (7a) and (7b), and each is edged in an arc shape from a stainless steel plate that corresponds to the bottom surface of the food storage tank (4).

[0036] The left and right ends of each stirring blade shaft (7a) and (7b) are completely surrounded by gear cases (11) and (12) which are integrated with the food storage tank (4). A bearing case (13) that extends laterally outward integrally from the center of the drive side (left side in the figure) gear case (11) is inserted into the drive box (2) and is supported by a bearing flange (14) inside.

[0037] Furthermore, the input gear shaft (15), which is supported in parallel with the stirring blade shafts (7a) and (7b) by ball bearings (not shown) inside the bearing case (13), has a tip facing into the drive-side gear case (11), and conversely, a pair of large and small transmission gears (16) and (17) that mesh with each other are fitted and integrated into the corresponding tip of the stirring blade shaft (7a) that faces into the drive-side gear case (11) from the food storage tank (4).

[0038] Furthermore, a transmission chain (20) is wrapped around the transmission sprocket (18) fixed on the input gear shaft (15) and the output sprocket (19) of the drive motor (1) for rotating the stirring blade shaft. As a result, the drive motor (1) rotates the stirring blade shaft (7a) via the input gear shaft (15) and a pair of transmission gears (16) and (17), and the stirring blades (10) stir the ingredients in the ingredient storage tank (4).

[0039] In this case, the horizontal food mixer (M) in the illustrated example is a two-axis type and is equipped with a pair of parallel front and rear stirring blade shafts (7a) (7b). Therefore, a pair of front and rear reduction gears (21a) (21b) that mesh with each other and rotate at a constant speed are fitted and integrated into the tips of both stirring blade shafts (7a) (7b) that face into the driven side (right side in the illustration) gear case (12).

[0040] On the other hand, the shaft cylinder (22) that extends laterally outward integrally from the center of the driven gear case (12) is inserted into the tank support box (3) and is supported by the bearing flange (23). (24) is the tank tilting handle shaft that extends forward from the tank support box (3), and when this is rotated by the manual operating handle (25), the food container tank (4) tilts by a certain angle of inclination (α) around the same horizontal axis (XX) between the bearing case (13) and the shaft cylinder (22), as shown by the dashed line in Figure 2, via the meshing of the worm gear (26) and worm wheel (27) on the tank tilting handle shaft (24).

[0041] Therefore, the ingredients that have finished stirring can be conveniently and without leakage from the ingredient storage tank (4). In the example shown, the tilt angle (α) at ​​which it tips over is set to 100 degrees, but any obtuse angle that can change the rectangular opening surface of the ingredient storage tank (4) from an upward position during stirring to a downward-sloping position is acceptable.

[0042] Although Figures 1-6 show a two-axis horizontal food mixer (M) suitable for various ingredients such as vegetable salads and minced meat that only require stirring without heating, the present invention can be broadly applied to single-axis horizontal food mixers, horizontal food mixers equipped with a heating source that heats the bottom of the ingredient storage tank (4) with steam, gas, or an electromagnetic induction heating coil, and horizontal food mixers having an automatic mechanical tipping mechanism (R) for the ingredient storage tank instead of a manual operating handle (25).

[0043] Next, a mobile washing machine (W) according to an embodiment of the present invention applied to the horizontal food mixer (M) described above will be explained. As is clear from the overall view in Figures 7 to 9, it comprises a trolley (28) equipped with a motor pump (P), a machine housing (29) integrally erected from the trolley (28), and a cover case (30) detachably attached and fixed to the rear of the machine housing (29). The rectangular opening on the back of the cover case (30) docks with the opening surface of the food container tank (4) of the food mixer (M), which is tilted downwards at the front, and is used for washing the inside of the tank (4).

[0044] Specifically, the trolley (28) that constitutes the washing machine (W) is equipped with multiple movable wheels (31) and foot jacks (32) for stable installation and fixing that lift the wheels (31). In addition, a positioning plate (33) that slides into (inserts into) the mounting frame (5) of the food mixer (M), as shown in Figures 23 and 24, is formed to protrude from the trolley (28) toward the rear. (34) is a sensor detection plate installed on the positioning plate (33), and (35) is a sensor mounting bracket fixed to the mounting frame (5) of the food mixer (M). The sensor mounting bracket also serves as a guide to ensure that the positioning plate (33) moves in a straight line correctly, and is equipped with a stopper (36) that receives the protruding tip of the positioning plate (33) and a proximity sensor (37) that detects the position of the detection plate (34) on the positioning plate (33).

[0045] Furthermore, a cleaning pump (38) and its drive motor (39), as shown in Figures 7-9, are mounted and fixed in the lower half of the machine casing (29) which stands upright on the trolley (28), covered by a front cover (40). Electrical components, including a control device (not shown), and an operation panel (41) are installed in the upper half of the machine casing (29). (42) is a front decorative cover for the electrical components, parallel to the operation panel (41), and (43) is a manual operation handle, also mounted and fixed at an intermediate height on the machine casing (29), which is used to move the trolley (28). By attaching a holder (not shown) to this handle, it is also possible to tether a handheld cleaning gun or foam gun, which will be described later, to the holder.

[0046] Figure 12 is a piping diagram for cleaning using the motor pump (P) described above. As can be seen from this, the suction side of the cleaning pump (38) is connected to a water tap, water storage tank, water heater, or other cleaning water supply source (45) not shown in the figure, via a hose or other flexible suction conduit (44). (46) is the suction solenoid valve, which is located on the trolley (28). (47) is the suction side nozzle that is exposed laterally from the machine casing (29) on the trolley (28), to which the flexible suction conduit (44) is connected and used.

[0047] Furthermore, the discharge side of the cleaning pump (38) is a parallel circuit of a first discharge line (48) and a second discharge line (49). The first discharge line (48) is a rigid discharge line made of metal or the like that automatically cleans the food container tank (4) of the food mixer (M). As shown in Figures 10 and 11, it is arranged and installed along the side wall of the cover case (30), and its upper end is connected to a water supply pipe (50) that is horizontally installed inside the cover case (30).

[0048] In contrast, the second discharge line (49) is a flexible discharge line, such as a hose for manually cleaning the food container tank (4) of the food mixer (M), and is connected to a handheld cleaning gun (51) or foam gun (52). Either the spray gun (51) or (52) can be selected and attached to the end of the discharge line (49). The cleaning gun (51) is used for cleaning the floor of the work area, and the foam gun (52) is used for foam cleaning of the food container tank (4) with cleaning solution.

[0049] (53) and (54) are the first and second solenoid valves for discharge, which are also located side by side on the trolley (28) as shown in Figures 7-9. (55) and (56) are the first and second discharge-side nozzles that are exposed laterally from the machine casing (29) or its front cover (40) on the trolley (28). The lower end of the first discharge pipeline (48) is connected to the upper first nozzle (55), while the base end of the second discharge pipeline (49) can be connected to the lower second nozzle (56). Note that in Figures 7-9, the reference numeral (57) indicates the pressure gauge of the cleaning pump (38), and (58) indicates the pressure regulating valve.

[0050] Furthermore, the cover case (30) is tilted upward at a rearward angle that corresponds to the food storage tank (4) which is tilted downward at a certain angle (α) downward at the front, and has a U-shaped cross-section as shown in Figure 24 with an opening at its rear, and is removably inserted and fitted into the opening edge of the food storage tank (4), surrounding the opening edge of the tank (4), and its flat vertical front wall is detachably attached and fixed to a joint flange (59) that protrudes from the upper half of the machine casing (29) on the trolley (28) via a plurality of screw fasteners (60). (61) is an elongated bolt receiving hole for the screw fasteners (60) that is distributed in the joint flange (59), and therefore the mounting height of the cover case (30) can be adjusted.

[0051] Furthermore, as shown in Figures 10, 14, and 17, the water supply pipe (50) located inside the cover case (30) extends horizontally, almost parallel to the pair of stirring blade shafts (7a) and (7b) located inside the food storage tank (4) of the food mixer (M), as an upper and lower pair (or more), with each of them having multiple washing water spray nozzles (62) installed in a scattered manner.

[0052] Furthermore, one end of each water supply pipe (50) (the left end in Figure 18) is sealed by a plug (63), and the remaining other end (the right end in Figure 18), which is exposed after penetrating the side wall of the cover case (30), is connected to the upper end of the first discharge line (48) of the cleaning pump (38). The cleaning water, which is pumped from the pump (38) through the first discharge line (48) to both water supply pipes (50), is then sprayed from the spray nozzle (62) towards the stirring blade shafts (7a) (7b) and stirring blades (10) inside the food storage tank (4).

[0053] In this case, the pair of upper and lower water supply pipes (50) are each rotatably supported on the left and right side walls of the cover case (30) via bushings (64) and bearing bases (65), respectively, and the other ends of the two water supply pipes (50) exposed from the cover case (30) (right end in the figure) are physically pivotally connected to the upper end and intermediate height section of the first discharge pipeline (48) via rotary joints (66), as shown in Figures 10, 11 and 13-21.

[0054] (67) is an angle stay attached and fixed to the side wall of the cover case (30) at an intermediate height, and has a pair of upper and lower horizontal bolt receiving adjustment elongated holes (68) formed therein. The first discharge pipe (48) is not a single piece of metal pipe, but is fastened via pipe joints as shown in Figures 20 and 21, so the overall length of the discharge pipe (48) is adjusted along the adjustment elongated holes (68) that open in the angle stay (67), and by fixing it in that adjusted state via U-bolts (69), the rotation angle of the water supply pipe (50), described later (the swaying / movement angle of the spray nozzle) is set to be constant.

[0055] Furthermore, a link guide (72) is fitted and integrated between the bush case (70) and the rotary joint (66) at the other end of each water supply pipe (50) exposed from the cover case (30) via a split collar (71) as shown in Figures 18 and 19. The upper end of the link guide (72) and the link guide (73) at the intermediate height are pivotally connected by the first link arm (74). (75) and (76) are the upper and lower pivot pins.

[0056] Furthermore, (77) is a brushless motor for rotating the water supply pipe, fixedly installed on the lower part of the side wall of the cover case (30) via a frame (78), and a link guide (80) that extends integrally from its output shaft (79) is pivotally connected to the link guide (76) located at the intermediate height via a second link arm (81). (82) is a pivot pin at the lower end of the second link arm (81).

[0057] In other words, the first and second link arms (74) and (81), connected via the pivot pins (75), (76), and (82), and the brushless motor (77) form a swing link mechanism (L) that rotates the water supply pipe (50) so that its water spray nozzle (62) swings (moves) by a certain angle (β). By rotating the brushless motor (77), the first and second link arms (74) and (81) swing back and forth in the vertical direction. Both water supply pipes (50) inside the cover case (30) simultaneously rotate in the same direction so that their cleaning water spray nozzles (62) oscillate (move) by a certain angle (β), allowing the cleaning water sprayed from the nozzles (62) to diffuse into the food storage tank (4) in a fan shape as shown in Figures 26 and 27, thereby efficiently and thoroughly cleaning the entire tank (4), including the pair of stirring blade shafts (7a) and (7b) and their stirring blades (10).

[0058] (83) is a nozzle for discharging cleaning water that is exposed downward from the lowest part of the bottom wall of the cover case (30), and a hose or other flexible discharge pipe (not shown) is connected to it. The end of the discharge pipe is connected to the drainage ditch (not shown) of the workshop. (84) is a transparent resin plate that serves as a front viewing window for the cover case (30), and (85) is a side cover that surrounds the entire first discharge pipe (48), brushless motor (77), and oscillating link mechanism (L) which are arranged and installed on the side wall of the cover case (30).

[0059] Figure 22 shows the control panel (41) of the above-mentioned washing machine (W), which has a power lamp (86), an operation lamp (87), a power on / off switch (88), an automatic / manual switch (89), a washing operation ON switch (90), a washing operation OFF switch (91), a washing time setting timer (92), a washing flow rate adjustment volume (93), a washing nozzle oscillation (movement) speed adjustment volume (94), and an emergency stop switch (95) installed in parallel.

[0060] A mobile washing machine (W) according to an embodiment of the present invention has the above configuration. When applying it to a horizontal food mixer (M) to wash the food storage tank (4), the washing machine (W) is brought close to the food mixer (M), which has been tilted forward by a certain angle (α), by manually pushing it from the front. The positioning plate (33) of the trolley (28) is then inserted into the mounting frame (5) of the food mixer (M) as shown in Figures 23 and 24, and the opening edge of the cover case (30), which protrudes from the machine casing (29) on the trolley (28) at a corresponding certain angle (α) upward, is inserted and fitted into the opening edge of the food storage tank (4).

[0061] Then, the positioning plate (33) on the washing machine (W) side is received from behind by the stopper (36) on the food mixer (M) side, and when the proximity sensor (37) on the food mixer (M) side detects the detection plate (34) of the positioning plate (33), the cover case (30) on the washing machine (W) side is docked to surround the food container tank (4) on the food mixer (M) side. This position is also detected by a sensor (not shown) installed on the food mixer (M) side, and the operator is notified that the washing machine is ready by the emission of light from the sensor or the illumination of an indicator lamp (not shown).

[0062] Therefore, the operator uses the foot jack (32) to keep the washing machine (W) securely fixed to the food mixer (M), turns on the power using the selector lever (88) on the control panel (41), sets another selector lever (89) to automatic washing mode, and turns on the washing operation switch (90) to start the continuous automatic washing operation of the food storage tank (4).

[0063] In this way, the cleaning pump (38) of the motor pump (P) is driven by its motor (39) to draw in cleaning water from the cleaning water supply source (45) and pump the cleaning water through the first discharge line (48) of the pump (38) to a pair of upper and lower water supply pipes (50) horizontally positioned inside the cover case (30). At the same time, both water supply pipes (50) are rotated by a common brushless motor (77) via a link mechanism (L) that swings reciprocally in the vertical direction and a rotary joint (66). As a result, multiple spray nozzles (62) distributed along both water supply pipes (50) oscillate (move) by a certain angle (β). Therefore, the spray of cleaning water that diffuses in a fan shape as shown in Figures 25-27 from the spray nozzles (62) toward the stirring blade shafts (7a) (7b) and stirring blades (10) inside the food storage tank (4) can be easily and reliably cleaned, including these parts.

[0064] This cleaning action can be carried out even more efficiently by rotating the stirring blade shafts (7a) and (7b) of the food mixer (M) at an appropriate speed, ensuring that even the back surface of the stirring blades (10) is thoroughly cleaned. The used cleaning water is then discharged downwards from the nozzle (83) on the bottom wall of the cover case (30) through a flexible discharge pipe (not shown).

[0065] Furthermore, while the automatic cleaning action of the food storage tank (4) by the automatic cleaning mode of the washing machine (W) has been explained, in addition to the first discharge line (48) for that purpose, a second discharge line (49) of the washing pump (38) can also be installed in parallel. By connecting a flexible second discharge line (49), such as a hose, to its second nozzle (56), a handheld washing gun (51) or foam gun (52) attached to its tip can be used to further clean any remaining areas of the spray nozzle (62), clean the floor of the work area, or perform foam cleaning of the food storage tank (4) with the cleaning solution, which is extremely convenient.

[0066] Furthermore, whether the food storage tank (4) is automatically or manually cleaned, the cleaning time can be set as desired using the timer (92), the cleaning flow rate can be adjusted using the volume control (93), and the rotation speed of the water supply pipe (50) (the oscillation / movement speed of the cleaning water spray nozzle) can be adjusted using the volume control (94). As a result, the inside of the food storage tank (4) can always be cleaned efficiently and reliably, regardless of the ingredients being mixed by the food mixer (M) or the cooking method, which is superior in terms of food hygiene.

[0067] Furthermore, although the cleaning action of the food storage tank (4) by spraying cleaning water has been explained, the cleaning water may include not only hot water but also appropriate detergents or cleaning solutions containing surfactants depending on the food. Also, although the cleaning machine (W) applied to a two-axis horizontal food mixer (M) has been described as having a configuration in which a pair (or more) of water supply pipes (50) are horizontally mounted inside its cover case (30), the water supply pipe (50) equipped with the cleaning water spray nozzle (62) may consist of only one pipe.

[0068] In that case, it is sufficient to install one rotary joint (66) and one link arm (74)(81), and in short, it is sufficient that the brushless motor (77) rotates the water supply pipe (50) via the oscillating link mechanism (L) and the rotary joint (66), causing the injection nozzle (62) to oscillate (move) by a certain angle (β). [Explanation of Symbols]

[0069] (2) Drive box (3) Tank support box (4) Food storage tank (5)...Installation frame base (7a)(7b)...Agitation blade shaft (10) Agitation blade (28) ... Dolly (29)...Machine housing (30) Cover case (32) Foot jack (33) Positioning plate (34)...Detection plate (36) Stopper (37) Proximity sensor (38) Cleaning pump (1)(39)...Drive motor (25)(43)...Manual operation handle (44)...Suction pipe (48)(49)...Discharge pipe line (50)...Water pipe (51)(52)...Spray gun (59) Joining flange (60) Screw fasteners (62) ... spray nozzle (66) Rotary joint (67)...Angle stay (72)(73)(80)···Link Guide (74)(81)···Link Arm (77) Brushless motor (L)····Oscillating link mechanism (M) Food Mixer (P)...Motor pump (R) ····Tip-over mechanism (W) Washing machine (α)(β)...Constant angle

Claims

1. The system comprises a trolley equipped with a motor pump and a manual operating handle, a detachable and fixed cover case with a U-shaped cross-section and an open rear, mounted on the upper part of a machine casing that rises integrally from the trolley, a water supply pipe horizontally positioned inside the cover case and equipped with multiple cleaning water spray nozzles, and a discharge pipeline arranged on one side wall of the cover case to connect one end of the water supply pipe, which is exposed from one side wall of the cover case, to the cleaning pump of the motor pump. The opening edge of the cover case is inserted and fitted from the front into the opening edge of the food storage tank of the horizontal food mixer, which is tilted downwards at the front. A mobile washing machine for a horizontal food mixer, which can wash the entire food container tank, including the stirring blades and their shafts, by spraying washing water from the washing water spray nozzle of the water supply pipe, Both ends of the above-mentioned water supply pipe are pivotally supported on both side walls of the cover case, and one end of the water supply pipe exposed from one side wall of the cover case is pivotally connected to the upper end of the discharge pipeline of the above-mentioned cleaning pump by a rotary joint so that the water supply pipe can rotate, The output shaft of the brushless motor, which is mounted and fixed to the same side wall of the cover case mentioned above, and one end of the water supply pipe are pivotally connected by a swing link mechanism. A mobile washing machine for a horizontal food mixer, characterized in that the water supply pipe is rotated via the link mechanism, which is oscillated reciprocally in the vertical direction by the brushless motor, so that the washing water spray nozzle oscillates by a certain angle.

2. The water supply pipes are arranged horizontally in a pair, one above the other, and the same end of each water supply pipe is pivotally connected to the discharge pipe of the cleaning pump using a rotary joint, The same end of both water supply pipes is pivotally connected to the output shaft of a common brushless motor by the first and second link arms of the oscillating link mechanism. A mobile washing machine for a horizontal food mixer according to claim 1, characterized in that the brushless motor is configured to rotate both water supply pipes simultaneously in the same direction.

3. A mobile washing machine for a horizontal food mixer according to Claim 1, characterized in that, in addition to a rigid first discharge pipeline connected to a water supply pipe to the washing pump, a flexible second discharge pipeline connected to a handheld washing gun or foam gun can also be installed in parallel.

4. A positioning plate that slides into the mounting frame of a horizontal food mixer extends from the trolley toward the rear, and a sensor detection plate is installed on the positioning plate, The proximity sensor that detects the detection plate and the receiving stopper of the positioning plate are installed in accordance with the sensor mounting bracket of the mounting frame. A mobile washing machine for a horizontal food mixer according to claim 1, characterized in that the relationship is set so that the washing preparation state, in which the opening edge of the cover case is inserted and fitted into the opening edge of the food storage tank, can be determined from the position detection signal of the detection plate by the proximity sensor.

5. A mobile washing machine for a horizontal food mixer according to Claim 1, characterized in that the trolley is equipped not only with multiple wheels for movement but also with stable foot jacks for installation and fixing that can lift the wheels off the ground.

6. A mobile washing machine for a horizontal food mixer according to claim 1, characterized in that a flat, vertical front wall of the cover case is detachably attached to a joint flange protruding from the upper half of the machine casing on the trolley using multiple screw fasteners, and is mounted and fixed in a manner that allows for adjustment of the mounting height along the bolt receiving elongated holes of the screw fasteners.