JP2572069Y2 - Rinse liquid sprayer for dishwasher - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rinsing liquid jetting device for a dishwasher which can prevent the rinsing liquid from scattering outside the dishwasher.

[0002]

2. Description of the Related Art Conventionally, as a dishwasher equipped with a cleaning liquid injection device and a rinsing liquid injection device, for example, Japanese Patent Publication No. 54-4 / 1979.
As disclosed in Japanese Patent Publication No. 553 and Japanese Utility Model Publication No. Sho 54-11751, various types have been invented and devised.

FIGS. 4 and 5 show an example of such a dishwasher. In these figures, reference numeral 1
Is a washing chamber for accommodating tableware. Cleaning liquid ejecting devices 2 and 2 and rinsing liquid ejecting devices 3 and 3 are respectively provided inside both the upper end and the lower end of the washing chamber 1. Reference numeral 4 denotes a cleaning tank that is located below the cleaning chamber 1 and stores a cleaning liquid 5.
At the lower end of the cleaning tank 4, a driving unit 6 including a motor and a pump is provided. Reference numeral 8 denotes a rack for accommodating the tableware 7, and the rack 8 is installed in the cleaning room 1 between the cleaning liquid ejecting devices 2 and 2 and the rinsing liquid ejecting devices 3 and 3.

Then, the cleaning liquid spraying devices 2, 2 are rotated about the shaft 9 in the direction of arrow X in FIG. 5 by the action of the motor, and the cleaning liquid 5 in the cleaning tank 4 is sucked from the suction unit 10 via the pump. Then, the tableware 7 is washed by spraying the tableware 7 from a plurality of spray units 2a provided on the upper or lower surface of the cleaning liquid spraying devices 2 and 2.

On the other hand, the rinsing liquid injection devices 3 and 3
Center part 3 rotatably supported at the upper and lower ends of the
a, and two tubular portions 3b extending radially outward from the central portion 3a. Above or below the tubular portion 3b, a plurality of nozzles 3c that open upward or downward are formed. ing. By the action of the motor, the rinsing liquid injection devices 3 and 3 are rotated around the shaft 11 as shown in FIG.
While rotating in the direction of the middle arrow Y, a high-temperature rinsing liquid is supplied through a rinsing liquid supply unit (not shown), and the rinsing liquid is jetted toward the tableware 7 from the nozzle 3c to rinse the tableware 7 after washing. Is performed.

[0006] An operator operates a lid 12 for covering the upper part of the dishwasher.
The rack 8 containing the dirty tableware 7 is opened and the washing room 1 is opened.
After being installed in the inside, the lid 12 is closed to wash and rinse the dishes 7, and after the rinsing is completed, the lid 12 is opened again to take out the washed dishes.

[0007]

By the way, in the dishwasher shown in FIGS. 4 and 5 or another conventional dishwasher, when the lid 12 is opened again after the rinsing and the washed tableware 7 is taken out. In some cases, the rinsing liquid ejecting devices 3 and 3 that have been rotating during rinsing are still rotating around the shaft 11 due to inertia. As a result, in particular, the rinsing liquid remaining in the tubular portion 3b of the rinsing liquid ejecting device 3 located at the upper end of the cleaning chamber 1 is scattered outward from the tip of the tubular portion 3b by centrifugal force, and the scattered rinsing liquid is discharged from the tableware. There was a case where the user jumped out of the washing machine and got wet on the floor around the dishwasher, or the operator could fall on the floor.

When the floor is wet, it becomes slippery. Moreover, as described above, the rinsing liquid is high temperature, and it is dangerous for the worker. After the end, the user waited until the rotation of the rinsing liquid injection devices 3 and 3 due to inertia stopped, and then opened the lid 12 to take out the tableware 7. The present invention has been made in view of the above problems, and an object of the present invention is to improve workability and safety when taking out tableware 7 after washing is completed.

[0009]

According to the present invention, there is provided a main cleaning step of spraying a cleaning liquid from above and below toward a cleaning object accommodated in a cleaning chamber, and a rinsing step of spraying a rinsing liquid from above and below toward the cleaning object. A rinsing liquid ejecting apparatus for a dishwasher, wherein a rinsing liquid ejecting apparatus installed above the washing chamber is rotatably supported around an axis extending in a vertical direction, and A plurality of tubular portions extending in the direction, and a side portion of each of the tubular portions has a plurality of through holes inclined at a predetermined angle downward with respect to a horizontal plane along an axial direction of the tubular portions, and A plate-like member extending in the direction of extension of the tubular portion is provided along the direction in which the tubular portion extends, and the width of the plate-like member in the up-down direction is from the distal end side of the tubular portion. Extends gradually downward toward the center Those which are.

[0010]

In the rinsing liquid injection device for a dishwasher according to the above configuration, after the rinsing is completed, the rinsing liquid scattered outward from the tubular portion with the rotation of the rinsing liquid injection device due to inertia is:
Immediately after being scattered, it hits the plate-like member and becomes water droplets. Here, since the width of the plate-shaped member in the up-down direction is gradually extended downward from the distal end side of the tubular portion toward the center portion, the water droplets extend along the lower end surface of the plate-shaped member toward the center portion side. And falls downward from the end on the central portion side.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. In addition, the rinsing liquid injection device for a dishwasher according to the present invention (hereinafter, referred to as a “rinse liquid injection device”) is a part of a conventional dishwasher, particularly a part of a rinsing liquid injection device installed above a washing room. Therefore, the description of other parts of the dishwasher will be omitted.

The rinsing liquid ejecting apparatus 20 is roughly composed of a central portion 22 having a substantially cylindrical shape, and two tubular portions 24 and 26 provided on the outer peripheral portion of the central portion 22 in directions opposite to each other. ing. The central portion 22 is rotatably supported by the lower end of the shaft 11 extending in the vertical direction, similarly to the rinsing liquid ejecting device 3 shown in FIGS. A through hole (not shown) is formed to communicate the internal space 22a, which is a liquid passage, with the internal spaces of the tubular portions 24, 26.

The tubular portion 24 is formed of a bottomed cylindrical member, and the opening side thereof is connected to the outer peripheral portion of the center portion 22.
The internal space 24a is communicated with the internal space 22a by a through hole formed in the central portion 22. A plurality of through-holes 24b are formed at the side of the tubular portion 24 along the axial direction of the tubular portion 24 and are separated from each other by a predetermined distance. Each of these through holes 24b is
As shown in FIG. 2, it is formed to be inclined downward by a predetermined angle (45 degrees in the case of FIG. 2) with respect to the horizontal plane.

Outside the tubular portion 24, a plate-like member 28 having an L-shaped cross section is provided along the axial direction of the tubular portion 24 so as to sandwich the tubular portion 24 between the corners. Inner portion 28 of plate-shaped member 28 that contacts the outer peripheral portion of
a and 28b are integrally fixed to the tubular portion 24 by welding or the like. The inner part 28 of the plate-like member 28
b (hereinafter, referred to as a “projection”) has a lower end surface 28d at least in the tubular portion 2.
4 is extended to a position intersecting a straight line (the direction in which the through-hole 24b extends) connecting the center of 4 and the through-hole 24b.

In addition, the vertical width W of the projection 28c
As shown in FIG. 3, the center 2
2 is gradually extended downwardly, so that the plate-like member 28
The lower end surface 28d forms an inclined surface which is gradually inclined downward from the distal end side of the tubular portion 24 toward the central portion 22.

On the other hand, the tubular portion 26 has the same configuration as the tubular portion 24, and each through hole 26b is formed at a position symmetrical to each through hole 24b with respect to the axis of the central portion 22. A plate-like member 30 similar to the plate-like member 28 is provided on the outside, so that the rinsing liquid sprayed from the through-hole 26b hits the projecting portion of the plate-like member 30. Further, the lower end surface 30 d of the plate-shaped member 30 forms an inclined surface that is gradually inclined downward from the distal end side of the tubular portion 26 toward the central portion 22.

In the rinsing liquid ejecting apparatus 20 according to the above configuration, rinsing is performed in the same manner as in the rinsing liquid ejecting apparatus shown in the conventional example. That is, first, the inner space 2 of the central portion 22
When the rinsing liquid is supplied to 2a, the rinsing liquid is branched and guided to each of the tubular portions 24 and 26, and then the respective through holes 24b and
The liquid is injected obliquely downward from 26b, and at the same time, the rinse liquid injection device 20 rotates in the direction of arrow I in FIG.

[0018] When the rinsing liquid is injected outward from the through hole 24b of the tubular portion 24, as shown in FIG. 2, the rinse liquid is first extends from the inner space 24a of the through-hole 24b (arrow direction A ₁ direction) Is sprayed linearly, and hits the protruding portion 28c to be pulverized into mist and changes its traveling direction (arrow A ₂ ). Then, it is sprayed toward the tableware located below while spreading further, thereby rinsing the tableware. The injection of the rinsing liquid from the tubular portion 26 is performed in exactly the same manner.

According to the rinsing liquid injection device 20 described above, after the rinsing is completed, the rinsing liquid scattered outward from the tubular portions 24 and 26 due to inertia of the rinsing liquid injection device 20 due to inertia,
Immediately after being scattered, they hit the plate-like members 28 and 30 and become water droplets. The water droplets further form lower end surfaces 28 of the plate members 28 and 30.
The fluid gradually flows down to the central portion 22 along the inclined surface formed by d and 30d, and falls downward from the end on the central portion 22 side where the centrifugal force is small. As a result, even if the lid of the dishwasher is opened immediately after the end of the rinsing, the rinsing liquid does not scatter outside the dishwasher. Therefore, even immediately after the end of the rinsing, the lid of the dishwasher can be opened and the dishes in the washing room can be taken out.

The presence of the plate-like members 28, 30
Since the weight of the rinsing liquid ejecting apparatus 20 increases and the weight distribution concentrates on the center portion 22 side, the rotational moment of the rinsing liquid ejecting apparatus 20 decreases, and after the rinsing is completed, the rinsing liquid ejecting apparatus 20 is less likely to idle. There are advantages too.

In addition, since the rinsing liquid is well pulverized into the plate-like members 28 and 30, the rinsing liquid is uniformly sprayed to all the dishes arranged below the rinsing liquid spraying device 20. Therefore, a sufficient rinsing liquid is supplied to the dishes placed at the four corners of the washing room, and it is possible to perform good rinsing.

The lower ends 28 of the plate members 28, 30
The inclined surface formed by d and 30d does not necessarily have to be a straight line as shown in FIG. 3, but may have an arcuate shape that is convex upward or downward, or a shape that combines them.

Although it is possible to provide only the protruding portions 28c and 30c on the outer peripheral portions of the tubular portions 24 and 26, the plate-like members 28 and 30 having an L-shaped cross section as described above.
In this case, since the plate-like members 28 and 30 are joined to the tubular portions 24 and 26 at two points on the inner portions thereof,
The joining strength between the plate 26 and the plate-like members 28 and 30 is improved, and chatter during spraying of the rinsing liquid is well suppressed.

Further, the angle of inclination when the rinsing liquid sprayed from the through holes 24b and 26b strikes the plate-like member 28 and the outlets 28c and 30c is not limited to the configuration of 45 degrees as described above. It can be changed as appropriate according to the liquid ejection conditions. Furthermore, although the cross-sectional shape of the plate-like members 28 and 30 is a right angle, the plate-like members 28 and 30 may be configured to have a central angle of 120 °, for example.

Further, in the above embodiment, the central portion 2
2, two tubular portions 24 and 26 are provided, but three or more tubular portions may be provided. Moreover, the tubular portion does not have to be formed in a horizontal shape, and may be provided so as to gradually rise radially outward from the center side.

[0026]

As described above, in the rinsing liquid injection device for a dishwasher according to the present invention, even if the lid of the dishwasher is opened immediately after the rinsing is completed, the rinsing liquid flows out of the dishwasher. So that it does not splash on the floor and wet the floor around the dishwasher or on workers.
After the rinsing is completed, the lid of the dishwasher can be opened without waiting for the rinsing liquid injection device to stop idling. As a result, workability and safety when removing tableware are improved.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view of a structure of a rinsing liquid ejecting apparatus according to the present invention as viewed from below.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a side view along an arrow III of FIG. 1;

FIG. 4 is a front view showing a conventional dishwasher.

FIG. 5 is a partial plan view of the dishwasher of FIG. 4;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Cleaning room 2 Cleaning liquid injection device 2a Spray part 3,20 Rinse liquid injection device 3a, 3b, 22 Central part 3b, 24,26 Tubular part 3c Nozzle 4 Cleaning tank 5 Cleaning liquid 6 Drive part 7 Tableware 8 Rack 9,11 Shaft 10 suction unit 12 lid 22a, 24a, 26a inner space 24b, 26b through holes 28, 30 plate-like member 28a, 28b the inner portion 28c protruding portions 28d, the injection direction of the rinsing liquid from the lower end face a ₁ through-hole of the 30d plate-like member A ₂ Propagation direction of the rinsing liquid hitting the protrusion I Rotation direction of the rinsing liquid injection device W Width of the protrusion in the vertical direction

Continuation of the front page (56) References JP-A 52-2982 (JP, U) JP-A 1-178866 (JP, U) JP-A 49-122668 (JP, U) JP 2-29658 (JP) , U) Japanese Utility Model Hei 2-102164 (JP, U) Japanese Utility Model Hei 5-68471 (JP, U) Japanese Utility Model Showa 48-79458 (JP, U) Japanese Patent Publication No. 54-4553 (JP, B2) (58) Field surveyed (Int.Cl. ⁶ , DB name) A47L 15/22 A47L 15/42

Claims (1)

(57) [Scope of request for utility model registration] 1. A dishwasher rinse for performing a main cleaning step of spraying a cleaning liquid from above and below toward a cleaning object contained in a cleaning chamber, and a rinsing step of spraying a rinsing liquid from above and below toward the cleaning object. In the liquid ejecting apparatus, a rinsing liquid ejecting apparatus installed above the cleaning chamber is rotatably supported around an axis extending in a vertical direction, and a plurality of tubular parts extending outward from the center. Along the side of each tubular portion, along the axial direction of the tubular portion, has a plurality of through holes inclined at a predetermined angle downward with respect to a horizontal plane, and extends downward to form each of the through holes. A plate-like member that blocks the extending direction is provided along the direction in which the tubular portion extends, and the width of the plate-like member in the up-down direction gradually extends downward from the distal end side of the tubular portion toward the central portion. Is characterized by being Rinsing liquid sprayer for dishwashers.