JP3382229B2 - Cleaning equipment for cargo handling pallets - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for cleaning a cargo pallet mainly made of a synthetic resin for carrying raw materials for foods, and more specifically, to automatically clean a cargo pallet with a small amount of water in a short time in a small space. It is related to the technology.

[0002]

2. Description of the Related Art In recent years, cargo handling pallets for transporting food ingredients have problems such as corrosion of wooden ones and propagation of various bacteria between the fibers of the tree, which leads to food hygiene. According to the law, synthetic resin is used.

[0003] By the way, even in a cargo pallet made of synthetic resin, for example, fish meat, fish surimi, vegetables, and other meats and their residues adhere to the front surface and the back surface, so that a further legal regulation (hasap) is made. In food related factories, it is mandatory to clean the cargo handling pallets.

Conventionally, when cleaning a cargo handling pallet made of synthetic resin, a high-pressure water cleaning device used for cleaning automobiles is used.

[0005]

By the way, in the high-pressure water cleaning apparatus, as shown in FIG. 11, high-pressure water is supplied from a long injection nozzle N held by a hand with a pallet 3 placed on a concrete floor surface F of a factory. Is required to spray the high-pressure washing water, and a large work space is required to allow the high-pressure washing water to scatter, and it takes a long time because it is a manual work, and there is a risk of washing leakage. The cleaning of the pallet 3 which extends over a long period of time requires heavy labor and uses a large amount of cleaning water. Particularly, in the cargo handling pallet 3 made of synthetic resin, a large number of penetrating holes 1 ... Are formed on the front and back sides and reinforcing ribs are formed in order to increase the strength while reducing the amount of material. It is difficult to clean all the ribs.

The present invention has been made in view of the above problems, and it is an object of the present invention to provide an apparatus for cleaning a cargo pallet, which can automatically clean a cargo pallet with a small amount of water in a short time in a small space. This is an issue.

[0007]

According to the first aspect of the invention, a waterproof casing 2 having a thin box shape and opened downward, and a cargo handling pallet 3 formed on a side surface of the waterproof casing 2 in an upright position are inserted and Doorway 4 that can be taken out
A holding means 5 for holding the cargo handling pallet 3 inserted in the waterproof casing 2 in an upright posture; and a substantially horizontal width of the cargo handling pallet 3 arranged on the front and back sides of the cargo handling pallet 3 held by the holding means 5. Cleaning nozzles 6, 6 having a length corresponding to
And a cleaning water supplying means 8 for supplying cleaning water to the cleaning nozzles 6 and 6, and an elevating means 7 for moving the cleaning nozzles 6 and 6 up and down over the upper and lower ends of the cargo pallet 3. Is.

According to this structure, the cargo handling pallet 3 standing upright can be easily inserted from the side entrance / exit 4 of the thin box-shaped waterproof casing 2 having an open bottom, and the cleaning space can be kept small. However, while the cargo handling pallet 3 inserted into the waterproof casing 2 is held by the holding means 5, the washing nozzles 6, 6 having a length corresponding to substantially the lateral width of the cargo handling pallet 3 are moved up and down to wash the cargo. By the washing water from the nozzles 6, 6, for example, the inside and outside of the cargo handling pallet 3 having a large number of holes 1 penetrating the front and back sides can be washed from two directions penetrating the hole 1, and a small amount of washing water can be obtained in a short time. The cargo handling pallet 3 can be automatically cleaned, and labor can be saved sufficiently.

According to the second aspect of the present invention, the receiving water tank 13 for collecting the cleaning water after cleaning is provided below the waterproof casing 2, and the cleaning water collected in the receiving water tank 13 is passed through the strainer 9 to remove dust. It is characterized in that it is provided with a circulation means 10 for circulating it as washing water.

According to such a construction, the washing water after washing can be collected in the water tank 13, filtered by the strainer 9 to remove dust, and reused as washing water. The amount of water can be reduced.

In the third aspect of the present invention, the elevating means 7 for elevating the cleaning nozzle 6 is provided with the sprockets 11 and 11 which are vertically spaced from each other on both front and back ends of the cargo handling pallet 3 held by the holding means 5. , Sprockets 11, 1
1. An endless body 12 is wound around 1, a cleaning nozzle 6 is installed on the endless bodies 12 on both sides, and a sprocket 11 is driven by a driving means 1.
It is characterized in that it is configured so as to be able to rotate in forward and reverse directions in 3.

According to such a configuration, the sprocket 1
By rotating 1 and 11 in forward and reverse directions, the endless body 12 and 12 is rotated.
The cleaning nozzles 6, 6 held in the above can be moved up and down, the structure for moving the cleaning nozzles 6, 6 up and down on both sides of the cargo pallet 3 can be simplified, and the cleaning device can be made thin.

According to the fourth aspect of the present invention, an obliquely upper injection nozzle 6a for injecting the cleaning water obliquely upward is provided on one surface of the cargo pallet 3 in which one of the opposing cleaning nozzles 6 and 6 stands. , The diagonal lower jet nozzle 6b for jetting the washing water diagonally downward is provided on the other surface of the cargo pallet 3 on which the other washing nozzle 6 stands, and the diagonal upper jet nozzle 6a and the diagonal lower jet nozzle 6b stand up Both side surfaces of the cargo handling pallet 3 held by the holding means 5 are configured to be vertically movable above and below the upper and lower surfaces of the pallet 3 and on both side portions of the diagonal upper jet nozzle 6a and the diagonal lower jet nozzle 6b. It is characterized in that a side jet nozzle 6c for jetting cleaning water is provided on 3a and 3a.

With this structure, the upper and lower surfaces of the cargo handling pallet 3 being held can be washed by the obliquely upper injection nozzle 6a and the obliquely lower injection nozzle 6b which go up and down, and the side surface injection can be performed. Both sides 3a, 3a of the cargo handling pallet 3 can be cleaned by the nozzles 6c, 6c, and the six surfaces of the cargo handling pallet 3 can be cleaned while the cleaning nozzles 6, 6 are moved up and down. The nozzle structure for cleaning the six surfaces can be simplified.

According to a fifth aspect of the present invention, the holding means 5 holds the cargo handling pallet 3 by contacting the front and back surfaces of the cargo handling pallet 3 formed of a wire rod and the side surface 3a on the inner side in the insertion direction. It is characterized by including a U-shaped three-way holding member 15 and a bottom support member 16 that abuts and supports the bottom surface of the standing cargo handling pallet 3.

According to this structure, the three-way holding member 15 and the bottom supporting member 1 which are formed of a wire and have a U-shape in plan view.
6. While the cargo handling pallet 3 can be stably held in an upright posture with 6, the six surfaces of the cargo handling pallet 3 can be substantially opened and washing can be effectively performed without disturbing the washing. You can

According to a sixth aspect of the invention, the waterproof casing 2 is transparent on substantially the entire front and back surfaces.

With such a structure, the cleaning state of the cargo handling pallet 3 inserted in the waterproof casing 2 can be visually confirmed from the outside.

Incidentally, when the adhered dirt is confirmed, the cleaning efficiency of the whole can be improved by removing it with a knife or the like.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. FIG. 1 is a schematic front view. FIG. 2 is a schematic side view. FIG. 3 is a schematic plan view. FIG. 10 is a perspective view of the cargo handling pallet.

The cargo pallet 3 is made of synthetic resin and has four side surfaces 3a.
A fork insertion hole 18 is formed in the fork and a fork of the forklift is inserted to convey, for example, food material loaded on the cargo pallet 3. A large number of holes 1 ... Penetrating the front and back sides are formed in the cargo handling pallet 3 to reduce the amount of molding resin material, and ribs R ... Are formed vertically and horizontally to enhance the strength. Hole 1 in cargo handling pallet 3 made of synthetic resin
The ribs R and ... Are formed in the thickness direction of the cargo handling pallet 3 so that the mold can be easily released and the structure of the mold can be simplified. There are various forms of such a cargo handling pallet 3.

In the apparatus for cleaning a cargo pallet according to the present invention, the cargo pallet 3 is erected so that one side surface 3a is the bottom surface and is inserted into the waterproof casing 2, and the through holes 1 ... And the ribs R. The cleaning nozzles 6 and 6 are vertically arranged on both sides of the cargo handling pallet 3 and sprayed with cleaning water from the cleaning nozzles 6 and 6 on both sides, so that a small amount of water can be obtained in a short time in a small space. In this case, the cleaning is performed well. The details will be described below.

The waterproof casing 2 has a thin box shape, and transparent acrylic resin plates 19 are fitted over substantially the entire front and back surfaces so that the inside can be seen. An entrance / exit 4 is formed on the side surface of the waterproof casing 2 so that the cargo handling pallet 3 can be stood up and inserted by using the step 20, or can be stood up and removed after cleaning. The lower part of the waterproof casing 2 is open.

Inside the waterproof casing 2, three-way holding members 15 formed by bending a wire into a U-shape are provided at upper and lower intervals, and a bottom support member 16 formed of the wire is provided at the bottom. The cargo handling pallet 3 can be stood and held stably.

The front and back sides of the cargo handling pallet 3 held in a standing posture by the three-way holding member 15 and the bottom support member 16 constituting the holding means 5 are vertically spaced on both sides in the width direction of the cargo handling pallet 3. The rotating shafts 28, 28 are rotatably held by bearings. Sprocket 11 is fixed to both ends of four rotating shafts 28 on the front, back and top and bottom of the cargo handling pallet 3. A chain 21 made of stainless steel is wound around the sprockets 11, 11 facing each other in the vertical direction. There are four chains 21. Endless body 12
The chain 21 forming the above may be changed.

A base 29 on which the waterproof casing 2 is erected.
Is equipped with an electric motor 22, which transmits the output from the electric motor 22 to one rotary shaft 28 near the base 29 via a transmission chain 30 and further via an intermediate transmission chain 31 to the base 29. It is adapted to be transmitted to the other rotating shaft 28 in the vicinity. Therefore, the output of the electric motor 22 allows the four chains 21 to be driven and rotated via the rotary shafts 28, and the sprockets 11.
In this case, the chain 21 is driven up and down (reciprocating) by electrical control.

A mounting link plate 23 is attached to the chain 21.
The base plate 24 is attached to the attachment link plate 23, and the nozzle pipe 2 is attached to the base plates 24 and 24 of the chains 21 and 21 at both ends of the rotary shaft 28 by the U bolts 25.
6 is installed and installed. The nozzle pipe 26 is provided with a large number of cleaning nozzles 6 ... A flexible hose 27 is connected to one end of the nozzle pipe 26 so that cleaning water (tap water) can be supplied to the nozzle pipe 26 that reciprocates up and down by the cleaning water supply means 8. The configuration for raising and lowering the nozzle pipe 26 is generically referred to as the raising and lowering means 7, and the configuration can be changed. A waterproof curtain 14 is attached to the entrance / exit 4 of the waterproof casing 2 and the raising / lowering opening of the cleaning nozzle 6 on the opposite side to prevent the cleaning water from splashing to the outside.

Thus, the cargo handling pallet 3 standing upright can be easily inserted from the doorway 4 on the side surface of the thin box-shaped waterproof casing 2 having an open bottom, and the cleaning space can be kept small. , Waterproof casing 2
Cleaning from the cleaning nozzles 6 and 6 is performed by raising and lowering the cleaning nozzles 6 and 6 having a length substantially corresponding to the lateral width of the cargo pallet 3 on the front and back while holding the cargo pallet 3 inserted in the holding means 5 by the holding means 5. It is possible to clean the front and back surfaces of the cargo handling pallet 3 and the inside of a large number of holes 1 penetrating the front and back from two directions that penetrate the hole 1, and to automatically clean the cargo handling pallet 3 with a small amount of cleaning water in a short time. Therefore, it is possible to achieve sufficient labor saving. In such cleaning of the cargo handling pallet 3, the cleaning nozzle 6 can be switched between a mode of reciprocating once and a mode of reciprocating twice.

As shown in FIGS. 3 and 9, the receiving water tank 13 is provided at a position lower than the base 29 on which the waterproof casing 2 is erected, and tap water is stored by opening the faucet 33. I am trying. In addition, the washing water after washing is tray-shaped from the lower opening of the waterproof casing 2 to the base 2.
It is made to inject into the receiving water tank 13 via 9 and circulate. A strainer plate 35 is provided upright on the lowest wall surface of the receiving water tank 13 from the surface of the base 29, so that the wash water returned to the receiving water tank 13 is filtered so that dust and the like do not enter inside. In addition, dust and the like that are floating when overflowing from the receiving water tank 13 are prevented from flowing out onto the base 29.

Pipe-shaped strainers 9, 9 are arranged at the bottom of the receiving water tank 13 to provide pumps 34, 34.
The cleaning water that has passed through the strainers 9, 9 by suction of the nozzles 26 through the flexible hoses 27, 27,
We are going to supply water to 26. The structure for circulating the cleaning water after cleaning as described above is generically called the circulation means 10, and the structure can be changed.

In this way, the water tank 1 for receiving the washing water after washing
The collected water can be collected in No. 3 and filtered by the strainer 9 to remove dust and can be circulated and used as washing water, and the amount of washing water can be further reduced.

By the way, a ball tap 38 is attached to the receiving water tank 13, and when the water level exceeds a certain level, the ball tap 38 is levitated and the solenoid valve is operated to close the faucet 33.
When the water level becomes lower than a certain level, the faucet 33 is opened so that the water level in the receiving water tank 13 becomes substantially constant. Further, a drainage tray 36 is arranged in the upper tank portion, and a drainage hole 37 in the center portion of the drainage tray 36 is connected to a drainage hole in the bottom portion by a pipe to remove dust and the like floating above the receiving water tank 13 from the outside of the tank. I try to discharge it.

When the operation switch is turned on, tap water is injected into the receiving water tank 13 from the faucet 33, and when the receiving water tank 13 reaches a predetermined water level, the cleaning water is supplied to the cleaning nozzles 6, 6. , Wash water after washing is base 2
It is received at 9 and returned to the receiving water tank 13, is filtered by the strainer 9, is supplied to the nozzle pipes 26, 26 as cleaning water by suction of the pumps 34, 34, and is circulated and used. is there. The dust floating in the upper layer is discharged to the outside of the tank through the drainage tray 36 together with the washing water.

As shown in FIG. 5, a large number of diagonally upward jet nozzles 6a for jetting the washing water diagonally upward to one surface of the cargo handling pallet 3 on which one of the facing washing nozzles 6 and 6 stands. I have it. On the other surface of the cargo handling pallet 3 set up by the other cleaning nozzle 6, a large number of oblique downward spray nozzles 6b are provided for spraying cleaning water obliquely downward. Diagonal upper jet nozzle 6a and diagonal lower jet nozzle 6
b is configured to be able to move vertically above and below the upper and lower surfaces of the standing cargo handling pallet 3, and diagonally above and below the held upper and lower surfaces of the cargo handling pallet 3 which is held up and down. The lower jet nozzle 6b can clean the upper and lower surfaces of the cargo handling pallet 3.

Further, side jet nozzles 6c for jetting washing water to both side faces 3a, 3a of the cargo handling pallet 3 held by the holding means 5 are provided on both sides of the diagonal upper jet nozzle 6a and the diagonal lower jet nozzle 6b. Both side surfaces 3a, 3a of the cargo handling pallet 3 are provided by the side injection nozzles 6c, 6c.
Can be washed.

As described above, even though the cleaning nozzles 6, 6 are moved up and down, the six surfaces of the cargo handling pallet 3 can be cleaned, and the nozzle structure for cleaning the six surfaces can be simplified. Of.

[0037]

According to the invention of claim 1, the cargo handling pallet standing upright can be easily inserted from the entrance of the side surface of the thin box-shaped waterproof casing whose lower side is opened, and the cleaning space can be kept small. However, while the cargo handling pallet inserted in the waterproof casing is held by the holding means, the washing nozzle having a length corresponding to the substantially horizontal width of the cargo handling pallet is moved up and down on the front and back sides. The inside and outside of the cargo pallet can be washed from the two directions that penetrate the hole, and the cargo pallet can be automatically washed with a small amount of washing water in a short time. There is an advantage that labor can be saved.

According to the invention of claim 2, in addition to the effect of claim 1, the cleaning water after cleaning is collected in a water tank, filtered by a strainer to remove dust and circulated as cleaning water. Therefore, there is an advantage that the amount of washing water can be further reduced.

According to the invention of claim 3, in addition to the effect of claim 1, by rotating the sprocket in the forward and reverse directions, the washing nozzle held in the endless body can be raised and lowered, and both sides of the cargo handling pallet. In the above, there is an advantage that the structure for raising and lowering the cleaning nozzle can be simplified and the cleaning device can be made thin.

According to the invention of claim 4, claim 1 or 3
In addition to the effect of the above, the upper and lower surfaces of the cargo pallet can be washed by the diagonal upper injection nozzle and the diagonal lower injection nozzle that go up and down over the held upper and lower surfaces of the cargo pallet, and by the side jet nozzle. Both sides of the cargo pallet can be cleaned, and while the cleaning nozzle is moved up and down, six surfaces of the cargo pallet can be cleaned, and the nozzle configuration for cleaning the six surfaces can be simplified. There is an advantage that you can.

According to the invention of claim 5, in addition to the effect of claim 1, in a posture in which the cargo handling pallet is erected with the three-way holding material formed of the wire material and having a U-shape in plan view and the bottom support material. There is an advantage that the cargo handling pallet can be effectively cleaned while the six surfaces of the cargo handling pallet can be substantially opened and the cleaning is not hindered while being stably held.

According to the invention of claim 6, claim 1 or 2
In addition to the effect of the above, since the waterproof casing has transparency on almost the entire front surface and the back surface, it is possible to visually confirm the cleaning state of the cargo pallet inserted in the waterproof casing from the outside. There is.

[Brief description of drawings]

FIG. 1 is a schematic front view of the above.

FIG. 2 is a schematic side view of the above.

FIG. 3 is a schematic plan view of the above.

FIG. 4 is a schematic plan view showing the same cleaning action as above.

FIG. 5 is a schematic side view showing the cleaning action of the above.

FIG. 6 is a perspective view showing the cleaning nozzle and holding means of the above.

FIG. 7 is a perspective view showing a connection part for supplying water to the above-mentioned washing nozzle.

FIG. 8 is a perspective view of a portion of the above endless body holding a cleaning nozzle.

FIG. 9 is a perspective view of the above receiving water tank.

FIG. 10 is a perspective view of a cargo handling pallet.

FIG. 11 is an explanatory diagram of a conventional example.

[Explanation of symbols]

1 hole 2 waterproof casing 3 loading pallets 4 doorways 5 Holding means 6 cleaning nozzle 7 lifting means 8 Cleaning water supply means 9 strainers 10 Circulation means 11 sprockets 12 Endless 13 receiving tank 15 Three-way holding material 16 Bottom support

Claims (6)

(57) [Claims] 1. A thin box-shaped waterproof casing having an open lower portion, an entrance formed on a side surface of the waterproof casing for inserting and removing a cargo pallet in an upright posture, and a waterproof casing inserted inside the waterproof casing. Holding means for holding the cargo pallet in an upright position, a cleaning nozzle disposed on the front and back of the cargo pallet held by the holding means and having a length corresponding to substantially the width of the cargo pallet, and a cleaning nozzle for the cargo pallet. Elevating means for elevating and lowering over the upper and lower ends,
A cleaning apparatus for a cargo handling pallet, comprising: a cleaning water supply means for supplying cleaning water to the cleaning nozzle. 2. A receiving means for collecting cleaning water after cleaning is provided below the waterproof casing, and a circulation means for circulating the cleaning water collected in the receiving tank through a strainer to remove dust and circulate as cleaning water. The apparatus for cleaning a cargo handling pallet according to claim 1, further comprising: 3. Elevating means for raising and lowering the cleaning nozzle is provided with sprockets vertically spaced at both end portions of the front and back sides of the cargo pallet held by the holding means, and an endless body is wound around the sprockets. 2. The apparatus for cleaning a cargo handling pallet according to claim 1, wherein a cleaning nozzle is installed on the endless body, and the sprocket is configured to be rotatable forward and backward by a driving means. 4. A cargo pallet which is provided with one diagonally upward jet nozzle for jetting cleaning water diagonally upward on one surface of a cargo pallet in which one of the opposing washing nozzles is erected, and the other washing nozzle is erected. The other surface is provided with an oblique lower injection nozzle for injecting the washing water obliquely downward, and the oblique upper injection nozzle and the oblique lower injection nozzle are configured to be able to go up and down above and below the upper and lower surfaces of the standing cargo pallet, A side jet nozzle for jetting cleaning water is provided on both sides of the diagonal upper jet nozzle and the diagonal lower jet nozzle on both sides of the cargo pallet held by the holding means. Alternatively, the cargo handling pallet cleaning device according to 3 above. 5. A three-way holding member which is U-shaped in plan view and holds the cargo pallet by holding the cargo pallet in contact with the front and back surfaces of the cargo pallet that is formed of a wire rod and the side surface on the back side in the insertion direction. 2. The apparatus for cleaning a cargo pallet according to claim 1, further comprising: a bottom support member that abuts and supports the bottom surface of the raised cargo pallet. 6. The apparatus for cleaning a cargo pallet according to claim 1, wherein the waterproof casing is transparent on substantially the entire front and back surfaces.