JPH0390125A - Tableware immersing tank - Google Patents

Abstract

PURPOSE:To facilitate the taking-in/out of the tableware even if an immersing tank is made deep, by joining a coil spring which provides an urging force and positions the uppermost part of the tableware arranged on the bottom plate of the immersing tank at a certain position, with a bottom plate and immersing a larger quantity of tableware into the immersing tank in one time. CONSTITUTION:A guide frame 6 is installed in demountable manners onto one surface of the inner wall of an immersing tank 1, and a bottom plate holding body 8 is installed in vertically movable manners onto the guide frame 6. An upper part spring installation body 12 is installed onto the upper side of the guide frame 6, and a lower part spring installation body 13 having a round rod shape is installed into the bent part of the installation arm 8b of the bottom plate holding body 8, and a coil spring 14 is laid between the upper and lower spring installation bodies 12 and 13, and a cover is installed in demountable manners onto a guide frame 16. A bottom plate 17 having an immersing water drain hole 16 is held onto the bottom plate holding body 8. Since the force of the coil spring 14 is set to the intensity for positioning the uppermost part of the tableware placed on the bottom plate 17 at the height equal to the water level of the immersing water, the uppermost part of the tableware is set at the equal height to the water level of the immersing water, and the taking-in/out of the tableware for the immersing tank 1 is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a tableware dipping tank for immersing dirty tableware in soaking water to facilitate the removal of stains from the tableware during subsequent cleaning operations.

Conventional technology In restaurants, food service centers, etc. where a large amount of tableware needs to be washed, dirty tableware is soaked in warm water stored in a tableware soaking tank to make it easier to remove stains from the tableware during subsequent washing. It is common practice to do so. An example of a tableware soaking tank used for this type of work is the conventional
There is something like the one shown in Figure 9.

That is, a housing-like immersion tank 50 with an open top is provided, and this immersion tank 50 is supported by four supporting legs 51. Inside the dipping tank 50, a drain plug 52 is provided at the bottom, and an overflow roller 53 communicating with the drain plug 52 is provided at the upper portion of the side wall.

In the tableware dipping tank having such a structure, hot dipping water is poured into the dipping tank 50 from a tap (not shown) or the like. Then, by soaking the dirty tableware before washing in the soaking water in the soaking tank 50 and leaving it for a certain period of time, the stains on the tableware can be easily removed during the subsequent washing operation. Note that when the water level of the immersion water in the immersion tank 50 becomes higher than the overflow pipe 53, that amount of immersion water is flowed to the outside from the overflow pipe 53, and overflow of the immersion water from the immersion tank 50 is prevented.

Problems to be Solved by the Invention In order to take out the tableware from the dipping tank 50, a person puts his/her hand into the soaking water and takes out the tableware by hand. At this time, the tableware is placed in the dipping tank 50.
The closer you are to the bottom of the immersion water, the deeper you will have to put your hand into the immersion water. For this reason, the depth of the immersion tank 50 cannot be increased too much.

On the other hand, the height of the upper edge of the dipping tank 50 needs to be set to a certain level from the viewpoint of ease of operation.

Therefore, from the above two points, there is a drawback that the volume of the dipping tank 50 is smaller than the volume occupied by the entire tableware dipping tank, and a large amount of tableware cannot be immersed.

Means for Solving the Problem The invention as set forth in claim 1 provides a dipping tank for storing dipping water, which is provided with a bottom plate that is movable up and down, and in which the uppermost part of the tableware placed on the bottom plate is located at a substantially constant position. A coil spring that provides force is connected to the bottom plate.

In the invention set forth in claim 2, in contrast to the invention set forth in claim 1, the force of the coil spring is set to such a strength that the uppermost part of the tableware placed on the bottom plate is located at the same height as the water surface of the immersion water.

The invention set forth in claim 3 is the invention set forth in claim 1, in which a bubble blowing pipe is provided at the bottom of the immersion tank to generate bubbles from a plurality of bubble blowing holes in the water by sending air from outside.

In the invention described in claim 1, when unwashed tableware is placed on the bottom plate to be immersed in the immersion water of the immersion tank, the bottom plate moves downward against the force of the coil spring. For this reason, the tableware placed on the bottom plate is also moved downward one by one and immersed in the soaking water for a certain period of time, making it easier to remove dirt during subsequent cleaning operations. Thereafter, as the dishes are removed from the soaking tank, the bottom plate moves upward by the force of the coil spring, and the dishes placed on the bottom plate also move upward one by one. Here, when the tableware is moved up and down, the uppermost part of the tableware is located at a substantially constant position, and even if the depth of the dipping tank is deep, it is easy to take the tableware in and out.

In the second aspect of the invention, when a tableware is placed on the bottom plate, the uppermost portion of the tableware is always maintained at the same height as the water level of the immersion water. This takes advantage of the phenomenon that tableware in water has buoyancy, so its weight is lighter than when it is in air, and therefore it is easier to maintain the tableware at the same height as the surface of the water it is immersed in. It is something.

In the invention according to claim 3, when air is sent to the bubble blowing pipe,
Numerous air bubbles are generated from the air bubble outlet, and these air bubbles pass between the dishes immersed in the immersion water and rise to the surface of the immersion water. In the process of rising air bubbles, vibrations are applied to the surface of the tableware and the immersion water is stirred, further promoting the immersion effect that makes it easier to remove stains from the tableware during washing.

Embodiment A first embodiment of the present invention will be explained based on FIGS. 1 to 6. A housing-shaped immersion tank l with an open top surface is provided. This immersion tank 1 is bent so that its upper edge is rolled inward, and is supported by four wheels 2 attached to the four corners of the bottom surface so as to be freely transportable. One end of the bottom surface of the immersion tank 1 is connected to the inside of the immersion tank 1,
A drain plug 3 is attached, the other end of which communicates with a drainage channel (not shown). A valve lever 4 for opening and closing the drain plug 3 is attached to the drain plug 3, and the valve lever 4 extends to the front surface of the soaking tank 1. Also,
The drain plug 3 has a built-in filter (not shown) for trapping dirt. Further, a pipe-shaped overflow pipe 5 having one end opened slightly below the upper edge of the immersion tank 1 is provided, and this overflow pipe 5 extends downward, penetrates the immersion tank 1, and is bent at a right angle. and the other end is the drain plug 3
is connected to.

Next, a guide frame 6 is detachably attached to one surface of the inner wall of the immersion tank l. That is, this guide frame 6 is a rectangular parallelepiped-shaped member with a single-shaped cross section, and the upper side is inserted into the bent upper edge of the immersion tank l, and the lower side is fixed to the lower surface of the immersion tank l. It is attached to the immersion tank 1 by having its movement regulated by a regulating plate 7 which is provided with a cylindrical shape.

In addition, in this installation, the L of the guide frame 6
The shaped piece is opposed to the inner wall of the immersion tank 1 with a predetermined distance therebetween. On the other hand, a bottom plate holder 8 is attached to the guide frame 6 so as to be vertically movable. In other words, the bottom plate holder 8 has a structure in which a pair of letter-shaped mounting arms 8b are fixed to a holding frame 8a formed in the shape of a rectangular parallelepiped.

A lower bearing 9 is attached to the mounting arm 8b, and the lower bearing 9 is attached to the lower part of the mounting arm 8b so as to contact the front side of the guide frame 6 while the holding frame 8a is maintained horizontally. The contacting upper bearing No. is attached. Further, anti-swing bearings 11 are attached to the mounting arm 8b at four locations on the top, bottom, left and right, which abut against the inner surface of the guide frame 6. Note that ball bearings made of stainless steel, reinforced resin, or the like are used as the anti-rolling bearing 11, the lower bearing 9, and the upper bearing 10 to prevent functional deterioration due to rusting or the like.

Next, an upper spring attachment body 12 is provided on the upper side of the guide frame 6, and a round bar-shaped lower spring attachment body 13 is provided on the bent portion of the attachment arm 8b of the bottom plate holder 8.
is provided. Five coil springs 14 are stretched between the upper spring mounting body 12 and the lower spring mounting body 13. Further, a lid 15 is detachably attached to the guide frame 6, and the upper spring attachment body 12, the lower spring attachment body 13, and the coil spring 14 are covered by the lid 115.

Further, a flat bottom plate 17 having a plurality of immersion drain holes 16 is provided, and this bottom plate 17 is placed on and held on the bottom plate holder 8.

Here, the bottom plate 17 has a structure in which two flat plate members are connected by a plurality of hinges 18, and the bottom plate 17 has a structure in which two flat plate members are connected by a plurality of hinges 18, and
It has a shape that follows the inner circumferential surface of the cylinder with a slight gap. Also,
The bottom plate 17 is formed with a rib 17a on the back surface that fits into the bottom plate holder 8, and is formed to prevent movement in the direction of displacement relative to the bottom plate holder 8.

In such a configuration, in use, first, the immersion tank 1 is filled with immersion water 19. As the immersion water 19,
It is common to use warm water.

In addition, the amount of immersion water 19 filled in the immersion tank 1 is as follows:
The amount of water must be such that the water surface is higher than the position of the bottom plate 17, for example, the amount of water must be such that the water surface is at the same height as the open upper end of the overflow pipe 5. Then, once the dipping tank l is filled with dipping water 19, the dirty tableware 20 after use is dipped into this dipping water 19. At this time, the depth of the immersion water 19 from the bottom plate 17 is small, and the tableware 20 can be easily immersed in the immersion water 19. In this way, tableware 2
When the tableware 20 is immersed in the soaking water 19 of the soaking tank 1 for a certain period of time, the dirt attached to the tableware 20 will be easily removed during the subsequent washing operation.

As the tableware 20 is placed one after another into the dipping tank l, the weight of the tableware 20 is applied to the bottom plate 17.

For this reason, as shown in FIG. 5, the bottom plate 17 pushes down the bottom plate holder 8 against the contraction force of the coil spring 14, and the immersion water drain is moved downward while letting the immersion water 19 pass through the hole 16. . At this time, the height of the highest part of the tableware 20 stacked in the dipping tank l always matches the height of the water surface of the dipping water 19.

Finally, as shown in FIG. 6, the bottom plate holder 8 moves to the lowest position, and the tableware 20 is placed completely inside the dipping tank l. Therefore, the ratio between the volume occupied by the entire tableware dipping tank and the volume of the dipping tank 1 is reduced, and more tableware 20 can be immersed in the dipping water 19 at once. More specifically, in comparison with the conventional example shown in FIG.
The capacity of 0 will be doubled from 2 times.

Next, when the tableware 20 immersed in the dipping tank 1 is taken out one by one, the load applied to the bottom plate 17 gradually decreases, and the bottom plate 17 moves upward due to the contraction force of the coil spring 14. At this time, the tableware 20 is taken out in order from the top of the pile in the dipping tank l.

This upper tableware 20 is located near the surface of the immersion water 19. Therefore, the tableware 20 can be easily taken out from the dipping tank 1.

Here, as described above, the height of the highest part of the tableware 20 in the dipping tank 1 corresponds to the height of the water surface of the dipping water 19. This principle will be explained below. First, since the tableware 20 is in the water, the load applied to the bottom plate 17 is equal to the weight of the tableware 20 minus the buoyancy of the tableware 20. For example, a melamine tableware with a total weight of 60 kg in air and a specific gravity of 1.2 has a buoyant force of 50 kg subtracted from it in water, resulting in only 10 kg, and this 10 kg is the amount of load applied to the bottom plate 17. Therefore, if the melamine tableware on the bottom plate 17 in the immersion water 19 comes out into the air, the bottom plate 17
This means that six times the load will suddenly be applied to the Therefore, the bottom plate 17 tends to move upward due to the compression force of the coil spring 14, but when the tableware 20 comes out into the air, a large load is suddenly applied to the bottom plate 17, so that the uppermost part of the tableware 20 is pushed to the surface of the immersion water 19. balance so that it is located at the height of However, such a phenomenon is affected by the strength of the coil spring 14 and the specific gravity of the tableware 20, and does not always occur under any conditions. However, in general,
The amount of load that the tableware 20 applies to the bottom plate 17 differs significantly depending on whether the tableware 20 is in the air or in water. Therefore, the range of conditions under which the above-mentioned phenomenon occurs is wide. In addition, since there are five coil springs 14, the number of coil springs 14 can be adjusted appropriately depending on the frequently used tableware 20 to adjust the uppermost part of the tableware 20 to the height of the water surface of the immersion water 19 according to various conditions. It can be adjusted to suit.

Next, the tableware 20 is soaked in the soaking water 19 and the tableware 20 is soaked in the soaking water 1.
When the water level of the tank 9 rises above the open upper end of the overflow pipe 5, the immersion water 19 flows into the overflow pipe 5 and is drained, thereby preventing the immersion water 19 from overflowing from the immersion tank 1.

Further, the immersion water 19 after use is drained by rotating the valve lever 4 to open the drain plug 3. In addition, to clean the soaking tank 1, the bottom plate 17 is removed and the filter (not shown) of the drain plug 3 is removed. Furthermore, if necessary, 1115
It is also possible to remove and clean the guide frame 6. Here, the bottom plate 17 is folded in two at the hinge 18 and removed, and the guide frame 6 is lifted upward so that its lower side passes over the regulation plate 7 and removed.

In addition, in practice, the upper edge of the immersion tank 1 may be bent outward, and the immersion tank 1 may be supported by the wheels 2.
Alternatively, the overflow pipe 5 may be arranged around the outer periphery of the immersion tank 1, and only the opening at the upper end of the overflow pipe 5 is connected to the immersion tank 1.
It may be configured so that it is located inside. Further, in this embodiment, the number of coil springs 14 is five, but in practice, the number is not limited to five, but any number may be used.

A second embodiment of the present invention will be described based on FIGS. 7 and 8. The same parts as in the first embodiment are denoted by the same reference numerals and explanations will be omitted. In this example, a bubble blowing pipe 30 was provided, and this bubble blowing pipe 30 was installed inside the immersion tank 1. That is, this bubble blowing pipe 30 has a bubble blowing section 30a which is formed by bending a pipe-like member to form a rectangular parallelepiped shape, and connecting two straight pipe-like members by hanging them inside the pipe-like member. ,
It is formed by an air suction pipe 30b, which is a straight pipe-shaped member, connected at right angles to the bubble blowing part 30a. Moreover, a plurality of bubble blowing holes 31 are provided in the bubble blowing section 30a. The bubble blowing pipe 30 is arranged in the immersion tank l with the bubble blowing part 30a located at the bottom of the immersion tank l, and the open upper end of the air suction pipe 30b protruding beyond the upper surface of the immersion tank l. ing.

In such a configuration, while the tableware 20 is immersed in the immersion water 19 of the immersion tank 1, air is fed through the open upper end of the air suction pipe 3ob. Then, in the bubble blowing section 30a, bubbles are generated one after another from the plurality of bubble blowing holes 31, and these bubbles pass between the dishes 20 and rise to the surface of the immersion water 19. In the process of rising air bubbles, vibrations are applied to the surface of the tableware 20, and the immersion water 1
9 is stirred, which further promotes the soaking effect, which makes it easier to remove stains from dishes during washing. In particular, when the immersion tank 1 is deep as in this embodiment, the immersion effect is further promoted.

Effects of the Invention The invention according to claim 1 provides a dipping tank for storing dipping water with a bottom plate that is movable up and down, and a coil spring that applies a biasing force to position the top portion of the tableware placed on the bottom plate at a substantially constant position. is connected to the bottom plate, so by setting the biasing force of the coil spring so that the topmost part of the dishes is near the water surface of the soaking tank, it is easy to put in and take out dishes even if the soaking tank is deep. Therefore, the dipping tank can be deepened to allow a large number of dishes to be immersed in the tank at once, and since a coil spring is used as a mechanism to position the top part of the dishes at a fixed position, pneumatic or hydraulic pressure is required. Compared to the case where an electric motor or the like is used, the structure is simpler and the whole tableware dipping tank can be easily manufactured.

In the invention as claimed in claim 2, the force of the coil spring is set to such a strength that the uppermost part of the tableware placed on the bottom plate is located at the same height as the water surface of the immersion water. ,
The uppermost part of the tableware is at the same height as the water level of the dipping water, which has the effect of making it easier to take the tableware in and out of the dipping tank.

In the invention as claimed in claim 3, a bubble blowing pipe is provided at the bottom of the immersion tank to generate bubbles in the water from a plurality of bubble blowing holes by sending air from outside, so that the bubbles blown from the bubble blowing holes are In the process of passing between the immersed dishes and rising to the surface of the immersion water, vibrations are applied to the surface of the dishes and the immersion water is agitated, which may cause the dishes to become dirty during subsequent cleaning operations. It has the effect of making it easier to fall off.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway perspective view showing a structure for moving the bottom plate holder up and down, showing a first embodiment of the present invention; FIG. 2 is a partially cutaway perspective view of the entire structure; FIG. 3 is its longitudinal side view,
Fig. 4 is a cross-sectional plan view thereof, Fig. 5 is a longitudinal sectional side view showing the state in which the tableware is immersed, Fig. 6 is a longitudinal sectional side view showing the state in which the tableware is immersed to the full capacity, and Fig. 7 is the invention of the present invention. FIG. 8 is a longitudinal sectional front view of the whole, and FIG. 9 is a perspective view of a conventional example. l...Immersion tank, 8...Bottom plate holder, 14...Coil spring, 16...Immersion water drainage hole, 17...Bottom plate, 1
9...Immersion water, 30...Bubble blowing pipe, 31...Bubble blowing hole Applicant Nippon Washiki Co., Ltd.

Claims (1)

[Claims] 1. A bottom plate is provided in an immersion tank for storing immersion water so as to be movable up and down,
A dish dipping tank characterized in that a coil spring is coupled to the bottom plate to provide a biasing force that causes the uppermost portion of the dishes placed on the bottom plate to be positioned at a substantially constant position. 2. The dish dipping tank according to claim 1, wherein the force of the coil spring is set to such a strength that the uppermost part of the dishes placed on the bottom plate is located at the same height as the water surface of the dipping water. 3. The dish dipping tank according to claim 1, further comprising a bubble blowing pipe provided at the bottom of the dipping tank, which generates bubbles in the water through a plurality of bubble blowing holes when air is sent from the outside.