JP3453533B2 - Washing nozzle for dishwasher - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing nozzle for a dishwasher. [0002] As one of the washing nozzles for dishwashers,
A nozzle body having an injection port on one side of a hollow arm portion extending radially from the boss portion, and a cap detachably attached to a radial end of the arm portion are connected and fixed by a fixture. There are, for example, JP-A-9-4
2243. In the dishwasher cleaning nozzle disclosed in the above publication, a linear spring member is employed as a fixture for connecting and fixing the cap to the nozzle body. Not only does it function only as a fixture, but there is a risk that residues washed off from the dishes will be caught and adhere to the spring members. SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and has a nozzle body having an injection port on one side of a hollow arm extending radially from a boss. And a cap which is detachably assembled to the radial end of the arm portion, in a dishwasher washing nozzle adapted to be connected and fixed by a fixture, a bolt is adopted as the fixture, and the injection port is It is characterized in that the bolt is arranged on one side of the provided nozzle body, and that the bolt is provided with an injection hole communicating with the inside of the arm. In the cleaning nozzle for a dishwasher according to the present invention, since a bolt is employed as a fixture for connecting and fixing the cap to the nozzle body, the residue washed off from the tableware is converted to the bolt. The cleaning nozzle is hardly caught and remains, and the cleaning nozzle can be maintained in a clean state. In addition, since the injection hole communicating with the inside of the arm portion is provided on the bolt provided on one side of the nozzle body (the side on which the injection port is provided), a part of the washing water supplied through the inside of the arm portion of the nozzle body is used. The tableware can also be sprayed from the injection holes provided in the bolts, so that the tableware can be efficiently cleaned, and the cleaning effect of the cleaning nozzle can be enhanced. An embodiment of the present invention will be described below with reference to the drawings. In the dishwasher shown in FIGS. 1 and 2, a washing tank 13 and a pair of left and right rack rails 15 and 16 are provided above a frame 11 installed on the floor.
The front guide 17 and the top panel 21 are integrally assembled, and the door 23 is rotatable (handle 2).
3a) and a cleaning pump 27 on the base plate 25 of the frame 11.
Control box 29, rinse tank (with a sheath heater for heating inside) 31, rinse pump (not shown), and cleanser pump 33 (a pump that supplies cleanser from inside an external cleanser tank to cleaning tank 13) ) Etc. are assembled. Further, in this dishwasher, stoppers 18 for defining the closed position of the door 23 are assembled to the rack rails 15 and 16, and a stopper 22 for defining the open position of the door 23 is provided on the top panel 21. Assembled, a spring 24 is provided between the top panel 21 and the door 23.
(The door 23 is held when the door is opened, and the door 23 is closed when the door is closed.
Which suppresses the falling of its own weight). Also,
A front panel 35 (an operation panel 34 is incorporated) is provided on the front surface of the frame 11, a side panel 37 (not shown on the left side) is provided on both side surfaces, and a fan motor for exhaust heat (a cleaning tank not shown is provided) is provided on the back surface. 13 and base plate 2
5 and a rear panel (not shown) incorporating air that exhausts air from the interior surrounded by each panel (see FIG. 1). The frame 11
Has a double structure of an upper plate and a lower plate, and an outside air inlet 25a provided on each plate (the one provided on the upper plate is shown in FIG. 2) is displaced in the horizontal direction. It is provided so that water hardly enters from the floor side. The washing tank 13 is formed in a shape having an open top, and stores a predetermined amount of washing water at the bottom. A lower header 41 penetrates the bottom wall at the center of the bottom wall and is integrally formed. A pump filter 45 for integrally removing the small residue by integrally attaching an overflow pipe 43 is detachably attached to a recess provided at the front of the bottom wall. Also, a slope 47 for guiding water forward and tank filters 48 and 49 for removing large residues are detachably attached to the middle stage of the washing tank 13. Water guide duct 51, upper header 53, rinse water guide pipe 5
5 and so on. In addition, a sheath heater (not shown) for heating the cleaning water and a heater cover 57 are mounted on the bottom right side of the cleaning tank 13. The lower header 41 includes a lower cleaning jet nozzle 6
1 and the lower rinse injection nozzle 63 are rotatably supported, and the cleaning water in the cleaning tank 13 that is pressure-fed from the cleaning pump 27 during the cleaning process is used for the lower cleaning injection nozzle 61.
Rinsing water (rinsing water containing rinsing in the rinsing tank 31) which is supplied by a rinsing pump (not shown) during the rinsing step.
3 and is connected to the cleaning pump 27 and a rinsing pump (not shown) through separate passages at a portion extending below the bottom wall of the cleaning tank 13. Each of the lower cleaning jet nozzle 61 and the lower rinse jet nozzle 63 has a large number of jets, and rotates with respect to the lower header 41 in reaction to jet water from each jet. The upper header 53 rotatably supports an upper cleaning spray nozzle 65 and an upper rinse spray nozzle 67, respectively. The cleaning water in the cleaning tank 13 which is pressure-fed from the cleaning pump 27 during the cleaning process is supplied to the upper cleaning spray nozzle. Rinsing water (rinsing water containing rinsing in the rinsing tank 31) supplied from a rinsing pump (not shown) during the rinsing step is supplied to the upper rinsing injection nozzle 67, and the cleaning water is guided. It is connected to the washing pump 27 via a washing water guide pipe (not shown) provided below the duct 51 and the bottom wall of the washing tank 13, and is provided below the rinse water guide pipe 55 and the bottom wall of the washing tank 13. It is connected to a rinsing pump (not shown) via a disposed rinsing water guide pipe (not shown). The upper cleaning jet nozzle 65 and the upper rinse jet nozzle 67 each have a large number of jets, and rotate with respect to the upper header 53 in reaction to jet water from each jet. In the dishwasher constructed as described above, the door 23 is opened (the door 23 is
The rack (not shown) containing the tableware is carried in along the rack rails 15 and 16 and set at a predetermined position between the nozzles, and then the door 23 is closed (the door 23 is When, for example, a normal operation operation button arranged on the operation panel 34 is pushed and operated, the control box 29 is held.
The internal control device controls the operation of various controlled devices (for example, the cleaning pump 27, the cleanser pump 33, the rinsing pump, etc.), and after a predetermined cleaning process is performed, a predetermined rinsing process is performed. In the cleaning step, cleaning water (containing an appropriate amount of cleanser) is fed from the cleaning pump 27 to the upper and lower cleaning jet nozzles 61 and 65, thereby jetting from the upper and lower cleaning jet nozzles 61 and 65. In the rinsing step, rinsing water (containing an appropriate amount of rinsing) is pumped from the rinsing pump to the upper and lower rinsing spray nozzles 63 and 67 in the rinsing step. As a result, the tableware stored in the rack is rinsed by the rinsing water injected from the upper and lower rinse injection nozzles 63 and 67. In the present embodiment, the lower cleaning jet nozzle 61 and the upper cleaning jet nozzle 65 are arranged as shown in FIG.
As shown in detail in FIG. 4 by taking the lower cleaning jet nozzle 61 as an example, the cylindrical boss portion 61a1 (lower header 4
Nozzle body 61 which comprises three flat hollow arms 61a2 extending in the radial direction from the boss 61a1 and having a large number of injection ports S on the upper side.
a and a cap 61 detachably attached to a radial end of each arm portion 61a2 via a seal ring 61b.
c, a bolt 61d as a fixture for connecting and fixing each of the caps 61c to the nozzle body 61a, and a seal ring 61e. A bearing 61f is assembled to the boss 61a1 and held by a collar 61g. I have. The bearing 61f and the collar 6
1g is attached to the boss 61a1 by a screw 61h, and a pipe for supplying rinsing water to the rinsing nozzle 63 is connected to the inner race of the bearing 61f. Each of the bolts 61d is inserted into each of the caps 61 through each of the mounting holes H provided on the upper end of the arm portion 61a2.
The mounting hole 61c1 is screwed into the mounting hole 61c1. An injection hole 61d1 communicating with the inside of the arm portion 61a2 is provided at the axis. For this reason, a part of the washing water supplied through the inside of each arm portion 61a2 can also be sprayed from the spray hole 61d1 provided in each bolt 61d, and the tableware (accommodated in a rack (not shown) and rack rail 15, 1
(Conveyed to / from a predetermined position along line 6) can be efficiently cleaned, and the cleaning effect of cleaning jet nozzle 61 can be enhanced. Further, in the cleaning jet nozzle 61 of this embodiment, since the bolt 61d is employed as a fixture for connecting and fixing the cap 61c to the nozzle body 61a, the residue washed off from the tableware is caught by the bolt 61d. It hardly remains, and the cleaning jet nozzle 6
1 can be kept clean. Further, since each arm portion 61a2 is formed in a flat hollow shape, the vertical dimension of the cleaning jet nozzle 61 can be shortened, and the height of the dishwasher can be reduced, or the dishwasher can be stored. The vertical dimension of the space to be formed can be sufficiently ensured. In the above embodiment, as is apparent from FIGS. 3 and 4, the cap 61c is connected to the arm 61a2.
Although the cap 61c is fitted inside and detachable from the nozzle body 61a, the cap 61c may be fitted outside the arm portion 61a2 and detachable from the nozzle body 61a.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing one embodiment of a dishwasher employing a cleaning jet nozzle according to the present invention. FIG. 2 is an exploded perspective view of the dishwasher shown in FIG. FIG. 3 is an exploded perspective view of the lower cleaning jet nozzle shown in FIG. 2; FIG. 4 is a longitudinal sectional view of a tip portion of the lower cleaning jet nozzle shown in FIG. 2; [Explanation of Signs] 61: Lower cleaning jet nozzle, 61a1: Boss portion, 61a
2. Hollow arm portion, S: injection port, 61a: nozzle body, 61c: cap, 61d: bolt, 61d1: injection hole.

Continuation of the front page (56) References JP-A-9-42243 (JP, A) JP-A-2-95328 (JP, A) JP-A 61-151658 (JP, U) JP-A 1-149767 (JP) , U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A47L 15/42

Claims (1)

(1) A nozzle body having an injection port on one side of a hollow arm portion extending radially from a boss portion, and is detachably attached to a radial end of the arm portion. The cap and the dishwasher washing nozzle which are connected and fixed by the fixture, employ a bolt as the fixture,
A dishwasher, wherein the bolt is provided on one side of the nozzle body provided with the spray port, and the bolt is provided with a spray hole communicating with the inside of the arm portion. For cleaning nozzle.