JP6145385B2 - Pump guard for dishwasher - Google Patents

Description

  The present invention relates to a pump guard for a dishwasher provided in a washing tank of a dishwasher.

  2. Description of the Related Art Conventionally, there has been known a dishwasher that draws washing water stored in a washing tank with a washing pump and circulates it. In the washing tank of such a dishwasher, a pump guard that covers the suction port of the washing pump is provided in order to prevent foreign matter from entering the washing pump.

JP 2000-254074 A

  Incidentally, the suction port of the cleaning pump is often provided in the vicinity of the bottom surface of the cleaning tank in order to circulate the cleaning water stored in the cleaning tank evenly and prevent so-called air biting. In such a case, if the pump guard is fixed to the side wall of the cleaning tank with a fixing screw or the like, the clearance between the pump guard and the bottom surface of the cleaning tank is small, so the pump guard (especially the bottom surface of the pump guard) must be cleaned. It becomes difficult. In addition, the pump guard can be cleaned by removing the fixing screw and removing the pump guard, but when the pump guard is installed near the bottom of the cleaning tank, it is very difficult to attach and detach the pump guard. is there. Moreover, there is a possibility that members such as fixing screws removed during the cleaning work may be lost.

  On the other hand, for example, in Patent Document 1, an engagement piece is provided on the suction side of the cleaning pump without fixing the pump guard to the side wall of the cleaning tank with a fixing screw or the like, and the engagement piece provided on the pump guard is engaged A dishwasher configured to lock to a piece is described. However, even with such a dishwasher, in order to clean the pump guard (particularly the lower surface of the pump guard), it is still necessary to remove the pump guard from the side wall of the washing tank.

  Then, an object of this invention is to provide the pump guard for dishwashers which can reduce the burden of the cleaning work of a pump guard.

  In order to solve the above-mentioned problems, the present invention is a pump guard for a dishwasher that covers a cleaning pump suction port provided on a side surface of a cleaning tank from the inside, and is disposed on the side surface of the cleaning tank. An annular mounting plate having a suction opening corresponding to the above, and a pump guard body fixed to the mounting plate so as to cover the suction opening and having a plurality of filter holes, and the mounting plate is provided on a side surface of the cleaning tank. A plurality of screws fixed to each other are rotatably locked around the suction port.

  According to the pump guard for a dishwasher according to the present invention, since the mounting plate is rotatable around the suction port, the lower surface of the pump guard main body at the normal time can be rotated upward. Thereby, the lower surface of the pump guard main body which is difficult to clean at normal times can be cleaned without attaching or detaching the pump guard. In addition, when cleaning the pump guard body, it is not necessary to completely remove the screw and remove the pump guard from the side surface of the cleaning tank, and there is no possibility that members such as screws are lost during cleaning. Therefore, according to the pump guard for this dishwasher, the burden of the cleaning work of the pump guard can be reduced.

In the pump guard for a dishwasher according to the present invention, a non-filter region in which no filter hole is provided is formed on the upper surface side of the pump guard body, and the mounting plate extends along the rotation direction of the mounting plate. The pump guard body has a rotation range restricted within a range in which the non-filter region faces upward by inserting screws through at least the pair of long holes of the mounting plate. It may be.
By directing the non-filter region upward, the number of filter holes arranged on the upper surface of the pump guard main body can be reduced in normal times, and foreign matters in the cleaning tank can be made difficult to be sucked into the pump guard. According to the pump guard for a dishwasher according to the present invention, the rotatable range of the pump guard body is restricted to the range in which the non-filter region faces upward. Thereby, after rotating the pump guard body and cleaning the entire side surface of the pump guard body, it is possible to save the operator's trouble of positioning the pump guard body so that the non-filter region faces upward. .

In the pump guard for the dishwasher according to the present invention, the pair of long holes extend along the rotation direction and the vertical direction of the mounting plate, and the pump guard body is attached to the mounting plate by a plurality of screws. It may be latched so that it can slide up and down along the long hole.
According to the pump guard for a dishwasher according to the present invention, since the pair of long holes extend along the rotation direction of the mounting plate and also along the vertical direction, the pump guard main body is moved in the vertical direction. Can be slid. Thereby, when cleaning the pump guard, the bottom surface of the pump guard body and the bottom surface of the cleaning tank below the pump guard can be easily cleaned by sliding the pump guard body upward.

In the pump guard for a dishwasher according to the present invention, a non-filter region in which no filter hole is provided is formed on the upper surface side of the pump guard body, and the mounting plate has a round hole for inserting a screw and a long length. Has a hole, the long hole extends along a circle centered on the screw inserted through the round hole, the pump guard body is inserted through the round hole and the long hole, respectively, The rotation range may be restricted within a range in which the non-filter region faces upward.
According to the pump guard for a dishwasher according to the present invention, the pump guard body can be rotated about the screw inserted through the round hole as the central axis. Thereby, when cleaning the pump guard, the lower surface of the pump guard body can be easily cleaned by rotating the pump guard. Further, since the rotatable range of the pump guard body is restricted to the range in which the non-filter region faces upward, the pump guard body is positioned so that the non-filter region faces upward after cleaning the pump guard. The labor of the operator can be saved.

In the pump guard for a dishwasher according to the present invention, the suction opening is a circular opening, and the mounting plate has a long hole extending along the rotation direction of the mounting plate, and a part of the suction opening outward. The pump guard has a notch groove formed by notching, and the screw guard is inserted into the elongated hole and the shaft portion of another screw is hung on the notch groove, so that the other screw is centered. You may be locked so that rotation is possible.
According to the pump guard for a dishwasher according to the present invention, the pump guard body is rotatable around another screw hung in the notch groove, so that the lower surface of the pump guard body and the lower part of the pump guard are washed. The tank bottom can be easily cleaned. Further, by providing a notch groove for screwing the suction opening of the mounting plate, only one long hole is provided in addition to the suction opening. For this reason, compared with the case where a pair of hole is provided in addition to the suction opening, the height position of the suction opening in the mounting plate can be lowered. As a result, the position of the pump guard relative to the side surface of the cleaning tank can be increased, and the gap between the lower surface of the pump guard body and the bottom surface of the cleaning tank can be increased. Therefore, according to the pump guard for this dishwasher, the burden of the cleaning work of the pump guard can be reduced.

In the pump guard for the dishwasher according to the present invention, a cylindrical collar member is passed through the shaft portion of the screw, and on the tip end side of the collar member, a tip end surface that contacts the side surface of the cleaning tank, A step portion formed around the front end surface and spaced apart from the side surface is formed, and a part of the mounting plate may enter a gap between the step portion of the collar member and the side surface.
According to the pump guard for a dishwasher according to the present invention, it is easy to attach the attachment plate without completely fixing it to the side surface of the washing tank by using the collar member. That is, it becomes easy to attach the attachment plate to the side surface of the cleaning tank so that the attachment plate can rotate around the suction port.

  ADVANTAGE OF THE INVENTION According to this invention, the burden of the cleaning operation | work of the pump guard for tableware washing machines can be reduced.

It is the schematic of the dishwasher containing the pump guard which concerns on 1st Embodiment. It is a schematic perspective view which shows the pump guard which concerns on 1st Embodiment in a washing tank. It is a disassembled perspective view of the pump guard shown in FIG. It is a figure which shows each part of the pump guard which concerns on 1st Embodiment, (a) is a side view of the whole pump guard, (b) is a figure which shows a mounting plate, (c) is a figure which shows a cover part. It is. It is sectional drawing which shows the state by which the attachment plate was latched. It is a figure which shows each part of the pump guard which concerns on 2nd Embodiment, (a) is a side view of the whole pump guard, (b) is a figure which shows a mounting plate, (c) is a figure which shows a cover part. It is. It is a schematic perspective view which shows the counterclockwise rotation limit position of the pump guard which concerns on 2nd Embodiment. It is a schematic perspective view which shows the clockwise rotation limit position of the pump guard which concerns on 2nd Embodiment. It is a figure which shows each part of the pump guard which concerns on 3rd Embodiment, (a) is a side view of the whole pump guard, (b) is a figure which shows a mounting plate, (c) is a figure which shows a cover part. It is. It is a schematic perspective view which shows the up-and-down slide range of the pump guard which concerns on 3rd Embodiment. It is a figure which shows each part of the pump guard which concerns on 4th Embodiment, (a) is a side view of the whole pump guard, (b) is a figure which shows a mounting plate, (c) is a figure which shows a cover part. It is. It is a schematic perspective view which shows the rotation range of the pump guard which concerns on 4th Embodiment. It is a figure which shows each part of the pump guard which concerns on 5th Embodiment, (a) is a side view of the whole pump guard, (b) is a figure which shows a mounting plate, (c) is a figure which shows a cover part. It is. It is the schematic which shows the rotation range of the pump guard which concerns on 5th Embodiment. It is a figure which shows the attachment plate of the pump guard which concerns on a comparative example.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or equivalent elements are denoted by the same reference numerals, and redundant description is omitted.

[About dishwashers]
A dishwasher 1 shown in FIG. 1 is a so-called door-type dishwasher. This dishwasher 1 has a main body case 2 made of stainless steel. The inside of the main body case 2 functions as a cleaning room R for storing the tableware D and cleaning the tableware. On the left side of the main body case 2 is provided an operation panel 3 for a user to input operation modes and settings.

  The main body case 2 is provided with a door 4 for taking in and out the tableware D in the cleaning room R. A rack rail (not shown) is provided in the cleaning chamber R, and a tableware rack (not shown) on which tableware D is arranged is placed on the rack rail.

  In the upper part of the cleaning chamber R, an upper cleaning nozzle 5 consisting of three arms extending radially and an upper rinsing nozzle 6 consisting of two arms are rotatably arranged. Similarly, in the lower part of the cleaning chamber R, for example, a lower cleaning nozzle 7 including three arms extending radially and a lower rinsing nozzle 8 including two arms are rotatably disposed. . Thereby, since the washing water is jetted from the upper and lower sides by the washing nozzles 5 and 7 in the washing process and the rinsing water is jetted from the upper and lower sides by the rinsing nozzles 6 and 8 in the rinsing process, Washing and rinsing of the tableware D is performed efficiently.

  A cleaning tank 9 for storing cleaning water is formed below the cleaning chamber R configured as described above. The cleaning tank 9 is provided with a water level detection switch 10 for detecting the level of the cleaning water. The water level detection switch 10 is a switch that is turned on when the water level in the cleaning tank 9 exceeds the predetermined water level H and turned off when the water level is below the predetermined water level H.

  The cleaning tank 9 is provided with an overflow pipe 11 extending in the vertical direction. The upper end of the overflow pipe 11 is positioned in the cleaning chamber R slightly beyond the upper edge of the cleaning tank 9, and the lower end protrudes outward from the bottom surface 9 a of the cleaning tank 9. Excess cleaning water in the cleaning tank 9 flows into the pipe through the inflow hole at the upper end of the overflow pipe 11 and is discharged to the outside. The overflow pipe 11 is configured to be removable from the cleaning tank 9. When the user removes the overflow pipe 11, the drain port into which the overflow pipe 11 has been inserted is exposed to the bottom surface 9a of the cleaning tank 9, and the cleaning water in the cleaning tank 9 can be completely drained.

  A cleaning pump 14 is connected to a side surface of the cleaning tank 9 via a cleaning water suction pipe 13. A pump guard 12 is provided in the suction port 9c to which the cleaning water suction pipe 13 of the cleaning tank 9 is attached (details will be described later).

  A cleaning water discharge pipe 15 is connected to the discharge port of the cleaning pump 14, and the cleaning water discharge pipe 15 branches into a first cleaning water discharge pipe 16 and a second cleaning water discharge pipe 17, and the first The cleaning water discharge pipe 16 is connected to the upper cleaning nozzle 5, and the second cleaning water discharge pipe 17 is connected to the lower cleaning nozzle 7.

  Moreover, the dishwasher 1 has the hot water storage tank 18 in which rinsing water is stored. Rinsing water is supplied to the hot water storage tank 18 from an external water heater (not shown) through a hot water supply pipe 21. The hot water supply pipe 21 is provided with a strainer 19 and a water valve 20. In the hot water storage tank 18, a rinsing water heater 22 for maintaining the rinsing water, which is hot water, at a predetermined temperature, and a water temperature sensor 23 for detecting the temperature of the rinsing water are installed.

  A rinsing pump 25 is connected to the hot water storage tank 18 via a rinsing water suction pipe 24. A rinsing water discharge pipe 26 is connected to the discharge port of the rinsing pump 25. The rinsing water discharge pipe 26 branches into a first rinsing water discharge pipe 27 and a second rinsing water discharge pipe 28, and the first rinsing water discharge pipe 27 is connected to the upper rinsing nozzle 6, and The rinsing water discharge pipe 28 is connected to the lower rinsing nozzle 8.

  The dishwasher 1 is provided with an electrical box 31 having a built-in microcomputer (hereinafter referred to as “microcomputer”) 30 for controlling the overall operation.

  The dishwasher 1 is provided with an external detergent supply pump 32. The detergent supply pump 32 is a bellows pump for supplying the detergent stored in the detergent tank 33 to the cleaning chamber R. The detergent supply pump 32 is connected to a detergent discharge pipe 34 connected to the side wall of the cleaning chamber R, and is connected to the microcomputer 30 by a signal line. The detergent supply pump 32 operates in accordance with a signal output from the microcomputer 30, sucks the detergent in the detergent tank 33 from the connected detergent suction pipe 35, and discharges a predetermined amount of detergent to the detergent discharge pipe 34. The detergent is provided at the tip of the detergent discharge pipe 34 and is discharged into the cleaning room R from a detergent discharge port 36 that connects the cleaning room R and the detergent discharge pipe 34. The detergent discharged into the cleaning chamber R flows into the cleaning tank 9 below the cleaning chamber R and is mixed with cleaning water.

  Further, an external rinse agent supply pump 37 is attached to the dishwasher 1. The rinse agent supply pump 37 is for supplying the rinse agent stored in the rinse agent tank 38 to the rinse water channel. The rinse agent supply pump 37 is connected to a rinse agent discharge pipe 39 communicating with the rinse water discharge pipe 26 and is connected to the microcomputer 30 through a signal line. The rinse agent supply pump 37 operates in response to a signal output from the microcomputer 30, sucks the detergent in the rinse agent tank 38 from the connected rinse agent suction pipe 40, and discharges the rinse agent to the rinse agent discharge pipe 39. . The rinse agent is discharged from the rinse agent discharge pipe 39 to the rinse water passage in the rinse water discharge pipe 26 by the rinse agent supply pump 37, and is mixed into the rinse water.

[First Embodiment]
The structure and mounting structure of the pump guard 12 according to the first embodiment will be described with reference to FIGS. As shown in FIGS. 2 and 3, the pump guard 12 according to the first embodiment covers the suction port 9 c of the cleaning pump 14 provided on the side surface 9 b of the cleaning tank 9 from the inside of the cleaning tank 9. It is attached to the peripheral part of the suction inlet 9c.

  Three screw holes 9d are provided at equal intervals on the same circumference at the peripheral edge of the suction port 9c, and screws 41 are tightened in the respective screw holes 9d. A cylindrical collar member 42 is passed through the shaft portion 41 a of the screw 41. As will be described in detail later, the mounting plate 43 of the pump guard 12 is rotated around the suction port 9c by a plurality of (here, three) screws 41 and a collar member 42 fixed to the side surface 9b of the cleaning tank 9. It is locked as possible.

  4A is a side view of the pump guard 12, and FIGS. 4B and 4C are views when the pump guard 12 of FIG. 4A is viewed from the right side of the pump guard 12. FIG. It is the figure which showed the attachment plate 43 and the cover part 45 (when it sees from the cover part 45 side). In FIG. 4A, the positions of the screw 41 and the collar member 42 when the pump guard 12 is locked to the side surface 9b of the cleaning tank 9 are indicated by broken lines. 4B, the position of the collar member 42 when the pump guard 12 is locked to the side surface 9b of the cleaning tank 9 is indicated by a broken line. Specifically, the outer edge of the front end surface 42a of the collar member 42 and the outer edge of the stepped portion 42b are indicated by broken lines (see FIG. 5).

  As shown in FIG. 4, the pump guard 12 includes a mounting plate 43, a cylindrical portion 44, and a lid portion 45, and is formed in a substantially cylindrical shape. In the present embodiment, the combined portion of the cylindrical portion 44 and the lid portion 45 constitutes the pump guard body B.

  The mounting plate 43 has a mounting surface portion 43b parallel to the side surface 9b of the cleaning tank 9, and a side surface portion 43c standing on the edge of the mounting surface portion 43b. The attachment surface portion 43b has a suction opening 43a corresponding to the suction port 9c, and is formed in an annular shape.

  The cylindrical portion 44 is provided in a cylindrical shape with a side surface portion 44c between the opening portion 44a on one end side and the opening portion 44b on the other end side. The side surface portion 44c is provided with a plurality of filter holes 44d for sucking cleaning water in the cleaning tank 9. In the present embodiment, the mounting plate 43 is connected to the cylindrical portion 44 by fitting the opening 44 a on one end side of the cylindrical portion 44 inside the side surface portion 43 c of the mounting plate 43.

  The lid portion 45 is a lid-like member having a lid surface portion 45a parallel to the attachment surface portion 43b and a side surface portion 45b erected on the edge portion of the lid surface portion 45a. The lid portion 45 is connected to the tubular portion 44 by fitting the opening portion 44b on the other end side of the tubular portion 44 inside the side surface portion 45b. The lid portion 45 is provided with three screw through holes 45c through which the screws 41 and the collar member 42 pass, corresponding to the positions of the screw holes 9d.

  FIG. 5 is a cross-sectional view showing a state in which the mounting plate 43 is locked by the collar member 42. As shown in FIG. 5, on the tip side of the collar member 42, there are a tip surface 42a that contacts the side surface 9b of the cleaning tank 9, and a step portion 42b that is formed around the tip surface 42a and is spaced from the side surface 9b. Is formed. The edge portion along the suction opening 43a of the mounting surface portion 43b enters a gap between the step portion 42b and the side surface 9b of the collar member 42, and a gap d is further provided between the edge portion and the step portion 42b. (D> 0) has occurred. Thereby, the attachment surface portion 43b is locked to the side surface 9b of the cleaning tank 9 without being completely fixed. On the other hand, as shown in FIGS. 4B and 5, the side surface 42c that connects the front end surface 42a of the collar member 42 and the stepped portion 42b extends along the suction opening 43a. Accordingly, the mounting plate 43 can smoothly rotate around the suction port 9c with the side surface 42c as a guide.

  According to the pump guard 12 according to the first embodiment, the mounting plate 43 is rotatable around the suction port 9c, so that the lower surface (side surface portion 44c, side surface portion 45b) of the pump guard body B in a normal state. Can be rotated upward. Thereby, it becomes easy to clean the lower surface of the pump guard body B, which is difficult to clean in normal times, without attaching or detaching the pump guard 12. In addition, when cleaning the pump guard body B, it is not necessary to completely remove the screw 41 and remove the pump guard 12 from the side surface 9b of the cleaning tank 9, and there is no possibility that members such as the screw 41 will be lost during cleaning. . Therefore, according to this pump guard 12, the burden of the cleaning work of the pump guard 12 can be reduced.

[Second Embodiment]
The pump guard 50 according to the second embodiment will be described with reference to FIGS. Detailed description of the same components as those of the other embodiments already described will be omitted. 6 (a) is a side view of the pump guard 50, and FIGS. 6 (b) and 6 (c) show the pump guard 50 in FIG. It is the figure which showed the attachment plate 51 and the cover part 53 of the case of seeing from the cover part 53 side.

  As shown in FIG. 6, the pump guard 50 includes a mounting plate 51, a cylindrical portion 52, and a lid portion 53, and is formed in a substantially cylindrical shape. The part which combined the cylindrical part 52 and the cover part 53 comprises pump guard main body B1. The configuration of each part of the tubular part 52 (the opening part 52a on one end side, the opening part 52b on the other end side, the side face part 52c, and the filter hole 52d) is the same as that of the tubular part 44 of the pump guard 12. However, a non-filter region S in which no filter hole 52 d is provided is formed in a certain range along the rotation direction of the pump guard 50 on the upper surface side of the side surface portion 52 c of the cylindrical portion 52. The lid 53 is the same as the lid 45 of the pump guard 12 except for the positions of screw holes 53c provided corresponding to the positions of the screw holes 9d.

  In the mounting plate 51, the mounting surface portion 51b has a suction opening 51a corresponding to the suction port 9c, and a pair of long holes 54 and 55 with the suction opening 51a interposed therebetween. The long hole 54 is a long hole provided on the left side of the suction opening 51a when the pump guard 50 is viewed from the lid 53 side, and the long hole 55 is when the pump guard 50 is viewed from the lid 53 side. It is a long hole provided on the right side of the suction opening 51a. The long holes 54 and 55 extend along the rotation direction of the mounting plate 51. The long holes 54 and 55 are provided so that the non-filter region S is disposed at the upper central position of the cylindrical portion 52 in a state where the screw 41 and the collar member 42 are inserted through the central positions of the long holes 54 and 55. It has been. In the present embodiment, screw holes 9d and 9d are provided at the same horizontal height across the suction port 9c on the side surface 9b of the cleaning tank 9, and the screw 41 is a collar for each screw hole 9d. It is tightened via the member 42.

  As described above, the screw 41 and the collar member 42 are inserted into the pair of long holes 54 and 55, respectively, so that the clockwise and counterclockwise rotation ranges of the mounting plate 51 are limited. More specifically, in the mounting plate 51, the side surface 42 c of the collar member 42 inserted through the elongated hole 54 contacts the upper end portion 54 a of the elongated hole 54, or the side surface 42 c of the collar member 42 inserted through the elongated hole 55. Can rotate counterclockwise until it contacts the lower end 55b of the long hole 55, and cannot rotate any further. Even when the mounting plate 51 is rotated counterclockwise to the maximum, the non-filter region S is directed upward (see FIG. 7).

  Similarly, in the mounting plate 51, the side surface 42 c of the collar member 42 inserted through the long hole 54 contacts the lower end portion 54 b of the long hole 54, or the side surface 42 c of the collar member 42 inserted through the long hole 55. It can rotate clockwise until it contacts the upper end 55a of the long hole 55, and cannot rotate any further. And even if the mounting plate 51 is rotated clockwise as much as possible, the non-filter region S is directed upward (see FIG. 8).

  By directing the non-filter region S upward, the number of filter holes 52d arranged on the upper surface of the cylindrical portion 52 can be reduced in a normal state, and foreign matter in the cleaning tank 9 can be hardly sucked into the pump guard 50. it can. Therefore, according to the pump guard 50 for a dishwasher according to the second embodiment, the rotatable range of the pump guard body B1 is restricted to the range in which the non-filter region S faces upward. Thereby, after the pump guard body B1 is rotated and the entire side surface of the pump guard body B1 is cleaned, the operator needs to position the pump guard body B1 so that the non-filter region S faces upward. It can be omitted.

[Third Embodiment]
A pump guard 60 according to the third embodiment will be described with reference to FIGS. 9 and 10. Detailed description of the same components as those of the other embodiments already described will be omitted. 9A is a side view of the pump guard 60, and FIGS. 9B and 9C are views of the pump guard 60 of FIG. 9A viewed from the right side (the pump guard 60 is shown in FIG. 9A). It is the figure which showed the attachment plate 61 and the cover part 63 (when it sees from the cover part 63 side).

  As shown in FIG. 9, the pump guard 60 includes a mounting plate 61, a cylindrical portion 62, and a lid portion 63, and is formed in a substantially cylindrical shape. The part which combined the cylindrical part 62 and the cover part 63 comprises pump guard main body B2. The configuration of the pump guard body B2 is the same as that of the pump guard body B1.

  The mounting surface 61b of the mounting plate 61 has a suction opening 61a corresponding to the suction port 9c, and has a pair of elongated holes 64 and 65 with the suction opening 61a interposed therebetween. The long hole 64 is a long hole provided on the left side of the suction opening 61a when the pump guard 60 is viewed from the lid 63 side, and the long hole 65 is when the pump guard 60 is viewed from the lid 63 side. It is a long hole provided on the right side of the suction opening 61a. The long holes 64 and 65 extend along the rotation direction and the vertical direction of the mounting plate 61. A screw 41 and a collar member 42 are inserted through the long holes 64 and 65, respectively. The screw 41 and the collar member 42 are inserted through the long holes 64 and 65. Normally, due to gravity, the upper ends 64a and 65b of the long holes 64 and 65 are stabilized in contact with the side surface 42c of the collar member 42 inserted through the long holes 64 and 65, respectively. The long holes 64 and 65 are provided so that the non-filter region S formed in the cylindrical portion 62 faces upward in this state. In this embodiment, similarly to the second embodiment, screw holes 9d are provided at two positions of the same horizontal height across the suction port 9c of the side surface 9b of the cleaning tank 9, and each screw hole A screw 41 is tightened via a collar member 42 with respect to 9d.

  According to the pump guard 60 for a dishwasher according to the third embodiment, the pair of long holes 64, 65 extend along the rotation direction of the mounting plate 61 and also along the vertical direction. The pump guard body B2 can be slid up and down. That is, the pump guard main body B2 can be slid upward until the lower end portions 64b and 65b of the long holes 64 and 65 are in contact with the side surfaces 42c of the collar member 42 inserted through the long holes 64 and 65, respectively. (See FIG. 10). Thereby, when cleaning the pump guard 60, the pump guard main body B2 is slid upward, whereby the lower surface (side surface portion 62c, side surface portion 63b) of the pump guard main body and the bottom surface 9a of the cleaning tank 9 below the pump guard. Can be easily cleaned.

  Further, in the pump guard 60, the mounting plate 61 is rotatable around the suction port 9c, similarly to the pump guard 50 according to the second embodiment. Further, the rotation range of the mounting plate 61 is limited to a range in which the non-filter region S faces upward, like the mounting plate 51. The configuration in which the mounting plate 61 can rotate and slide up and down in this way is, for example, in the lateral direction (direction orthogonal to the extending direction of the long holes 64 and 65) and the side surface 42c of the collar member 42. It may be realized by providing some play between the two. That is, since the lateral width of the long holes 64 and 65 is made larger than the diameter of the side surface 42c of the collar member 42, the mounting plate 61 can be slid up and down and within a certain range around the suction port 9c. It can be rotated. According to this pump guard 60, as with the pump guard 50 according to the second embodiment, the pump guard body B2 can be rotated to clean the entire side surface of the pump guard body B2, and the non-filter region can be cleaned after cleaning. The labor of the operator such as positioning the pump guard main body B2 so that S faces upward can be saved.

[Fourth Embodiment]
A pump guard 70 according to the fourth embodiment will be described with reference to FIGS. 11 and 12. Detailed description of the same components as those of the other embodiments already described will be omitted. 11 (a) is a side view of the pump guard 70, and FIGS. 11 (b) and 11 (c) show the pump guard 70 shown in FIG. It is the figure which showed the attachment plate 71 and the cover part 73 of the case of seeing from the cover part 73 side.

  As shown in FIG. 11, the pump guard 70 includes a mounting plate 71, a cylindrical portion 72, and a lid portion 73, and is formed in a substantially cylindrical shape in appearance. The part which combined the cylindrical part 72 and the cover part 73 comprises pump guard main body B3. The configuration of the pump guard body B3 is the same as that of the pump guard body B1.

  The mounting surface portion 71b of the mounting plate 71 has a suction opening 71a corresponding to the suction port 9c, and has a round hole 74 and a long hole 75 with the suction opening 71a interposed therebetween. The round hole 74 is provided on the left side of the suction opening 71a when the pump guard 70 is viewed from the lid 73 side, and the long hole 75 is the suction opening 71a when the pump guard 70 is viewed from the lid 73 side. It is provided on the right side. The long hole 75 is formed so as to extend along a circle centered on the round hole 74. As shown in FIGS. 11A and 11B, the screw 41 and the collar member 42 are inserted into the round hole 74 and the long hole 75. Normally, due to gravity, the upper end portion 75a of the long hole 75 is stabilized in contact with the side surface 42c of the collar member 42 inserted through the long hole 75. The long hole 75 is provided so that the non-filter region S formed in the cylindrical portion 72 faces upward in this state. In the present embodiment, as in the second and third embodiments, screw holes 9d are provided at two positions at the same horizontal height across the suction port 9c on the side surface 9b of the cleaning tank 9, respectively. A screw 41 is tightened via a collar member 42 into each screw hole 9d.

  The pump guard body B3 is rotatable to a position where the lower end portion 75b of the long hole 75 contacts the side surface 42c of the collar member 42 inserted through the long hole 75, with the screw 41 inserted through the round hole 74 as the central axis. Has been. As shown in FIG. 11, when the position of the round hole 74 is eccentric from the center position of the mounting surface portion 71b of the mounting plate 71, the pump guard body B3 moves upward while rotating (see FIG. 12). Further, the pump guard body has a limited movement range so that the non-filter region S faces upward in any state. Such a restriction can be applied, for example, by adjusting the length of the long hole 75.

  According to the pump guard 70 for a dishwasher according to the fourth embodiment, the pump guard body B3 can be rotated about the screw 41 inserted through the round hole 74 as a central axis. Thereby, when cleaning the pump guard 70, the lower surface (side surface part 72c, side surface part 73b) of the pump guard main body B3 can be easily cleaned by rotating the pump guard 70. Further, as described above, when the position of the round hole 74 is eccentric from the center position of the mounting surface portion 71b of the mounting plate 71, the pump guard main body B3 can move upward while rotating. In this case, the bottom surface 9a of the cleaning tank 9 below the pump guard can be easily cleaned together with the lower surface of the pump guard body B3. In addition, since the rotatable range of the pump guard body is restricted to the range in which the non-filter region S faces upward, the pump guard body is positioned so that the non-filter region S faces upward after cleaning the pump guard 70. It is possible to save the labor of the operator such as performing.

  In addition, the round hole 74 in this embodiment does not need to be perfect round shape (circle). For example, the round hole 74 may be formed in a polygonal shape according to the shape of the screw 41.

[Fifth Embodiment]
A pump guard 80 according to the fifth embodiment will be described with reference to FIGS. 13 to 15. Detailed description of the same components as those of the other embodiments already described will be omitted.

  First, the mounting plate 91 of the pump guard 90 according to the comparative example will be described with reference to FIG. As shown in FIG. 15, in the pump guard 90 according to the comparative example, the center of the circular suction opening 91a is positioned at the intermediate position P1 between the small hole portions of the pair of dharma holes (hole portions 91b and 91c). A pair of holes 91b and 91c are provided. This is to improve the adhesion of the mounting plate 91 to the side surface 9b of the cleaning tank 9. On the other hand, from the viewpoint of facilitating cleaning of the lower surface of the pump guard 90 and the bottom surface 9a of the cleaning tank 9 below the pump guard 90, it is preferable to increase the fixing position of the pump guard 90 with respect to the side surface 9b of the cleaning tank 9. . Here, in order to raise the fixing position of the pump guard 90, it is necessary to make the position of the suction opening 91a in the mounting plate 91 as low as possible. If the suction opening 91a and the pair of holes 91b and 91c are arranged in consideration of the adhesion of the mounting plate 91 to the side surface 9b of the cleaning tank 9, not only the position of the suction opening 91a in the mounting plate 91 but also the suction It is also necessary to lower the positions of the pair of holes 91b and 91c located on both sides of the opening 91a at the same time. However, when the mounting plate 91 is circular, the lateral width of the mounting plate 91 becomes shorter from the center height position of the mounting plate 91 toward the lower side, so that the lowering width of the suction opening 91a in the mounting plate 91 is limited. There is. In the example shown in FIG. 15, it is difficult to lower the height positions of the suction opening 91a and the pair of holes 91b and 91c any more.

  Next, the configuration of the pump guard 80 will be described in detail. 13 (a) is a side view of the pump guard 80, and FIGS. 13 (b) and 13 (c) show the pump guard 80 shown in FIG. It is the figure which showed the attachment plate 81 and the cover part 83 (when it sees from the cover part 83 side).

  As shown in FIG. 13, the pump guard 80 includes a mounting plate 81, a cylindrical portion 82, and a lid portion 83, and is formed in a substantially cylindrical shape. The part which combined the cylindrical part 82 and the cover part 83 comprises pump guard main body B4. The configuration of the pump guard body B4 is the same as that of the pump guard body B1.

  The mounting surface portion 81b of the mounting plate 81 has a circular suction opening 81a corresponding to the suction port 9c, and has a long hole 84 extending along the rotation direction of the mounting plate 81 on the left side of the suction opening 81a. The suction opening 81a is provided with a notch groove 85 formed by notching a part of the suction opening 81a to the outside on the side opposite to the side where the long hole 84 is located with respect to the suction opening 81a. The long hole 84 is a dharma hole. In the long hole 84, the center of the suction opening 81a is located at an intermediate position P2 between the small hole portion 84a through which the screw 41 is normally inserted and the notch groove 85. The screw 41 and the collar member 42 are inserted through the small hole portion 84a and the cutout groove 85 of the long hole 84, respectively. In the present embodiment, similarly to the second to fourth embodiments, screw holes 9d are provided at two positions of the same horizontal height across the suction port 9c of the side surface 9b of the cleaning tank 9, A screw 41 is tightened via a collar member 42 into each screw hole 9d.

  The pump guard body B4 contacts the side surface 42c of the collar member 42 in which the lower end 84b of the long hole 84 is inserted into the long hole 84 with the screw (other screw) 41 hung in the notch groove 85 as the central axis. It is possible to move upward while rotating to the position (see FIG. 14).

  According to the pump guard 80 for a dishwasher according to the fifth embodiment, the pump guard main body B4 can rotate around a screw (other screw) hung on the notch groove 85, and therefore the pump guard main body Cleaning of the lower surface (side surface portion 82c, side surface portion 83b) of B4 and the bottom surface 9a of the cleaning tank 9 below the pump guard can be easily performed. Further, the pump guard 80 has a configuration in which only one long hole 84 is provided in addition to the suction opening 81a by providing a notch groove 85 for hooking the screw 41 to the suction opening 81a of the mounting plate 81. For this reason, compared with the attachment plate 91 which concerns on the comparative example which needs to provide a pair of hole part 91b and 91c other than the suction opening 91a, the height position of the suction opening 81a in the attachment plate 81 can be lowered | hung. Thereby, it becomes possible to make the attachment position of the pump guard 80 with respect to the side surface 9b of the washing tank 9 high, and the clearance gap between the lower surface of pump guard main body B4 and the bottom face 9a of the washing tank 9 can be enlarged. Therefore, according to the pump guard 80 for this dishwasher, the burden of the cleaning work of the pump guard 80 can be reduced.

  The present invention is not limited to the embodiment described above.

  For example, in the first to fifth embodiments, two or more members of the mounting plate, the cylindrical portion, and the lid portion may be integrally formed. Further, the collar member 42 is not necessarily essential. For example, the head of the screw 41 may be slightly lifted and stopped so that the mounting plate is not completely fixed to the side surface 9 b of the cleaning tank 9. In addition, during normal operation, the mounting plate is fixed to the side surface 9b of the cleaning tank 9 with screws 41, and the screw 41 is slightly loosened during cleaning so that the mounting plate is rotatably rotated around the suction port 9c. It may be. Even if it does in this way, since it becomes unnecessary to remove the screw | thread 41 at the time of cleaning, or to remove a pump guard, the burden of cleaning work can be reduced. In the fourth embodiment, the position of the round hole 74 and the position of the long hole 84 may be reversed left and right. Similarly, in the fifth embodiment, the positions where the long holes 84 and the cutout grooves 85 are provided may be reversed left and right.

DESCRIPTION OF SYMBOLS 1 ... Dishwasher, 9 ... Washing tank, 9b ... Side, 9c ... Suction inlet, 12, 50, 60, 70, 80, 90 ... Pump guard, 14 ... Washing pump, 41 ... Screw, 41a ... Shaft part, 42 ... collar member, 42a ... tip end face, 42b ... stepped portion, 43, 51, 61, 71, 81, 91 ... mounting plate, 43a, 51a, 61a, 71a, 81a, 91a ... suction opening, 44, 52, 62, 72, 82 ... cylindrical part, 44d, 52d, 62d, 72d, 82d ... filter hole, 45, 53, 63, 73, 83 ... lid part, 54, 55, 64, 65, 75, 84 ... long hole, 74 ... round hole, 85 ... notch groove, B, B1, B2, B3, B4 ... pump guard body, d ... gap, S ... non-filter region.

Claims (6)

A pump guard for a dishwasher that covers the cleaning pump suction port provided on the side of the cleaning tank from the inside,
An annular mounting plate disposed with respect to the side surface of the cleaning tank and having a suction opening corresponding to the suction port;
A pump guard body fixed to cover the suction opening with respect to the mounting plate and having a plurality of filter holes;
With
A pump guard for a dishwasher, wherein the mounting plate is rotatably locked around the suction port by a plurality of screws fixed to the side surface of the washing tank. On the upper surface side of the pump guard body, a non-filter region in which the filter hole is not provided is formed,
The mounting plate has at least a pair of long holes extending along the rotation direction of the mounting plate;
The pump guard main body is characterized in that a rotation range is restricted within a range in which the non-filter region faces upward by inserting the screws through the at least one pair of long holes of the mounting plate. A pump guard for a dishwasher according to claim 1. The pair of long holes extend along the rotation direction and the vertical direction of the mounting plate,
The pump guard for a dishwasher according to claim 2, wherein the pump guard body is slidably locked in the vertical direction along the elongated hole of the mounting plate by the plurality of screws. On the upper surface side of the pump guard body, a non-filter region in which the filter hole is not provided is formed,
The mounting plate has a round hole and a long hole for inserting the screw,
The long hole extends along a circle centered on the screw inserted through the round hole,
The rotation range of the pump guard body is restricted within a range in which the non-filter region faces upward by inserting the screws through the round hole and the long hole, respectively. Pump guard for dishwashers as described in. The suction opening is a circular opening,
The mounting plate is
An elongated hole extending along the rotation direction of the mounting plate;
A notch groove formed by notching a part of the suction opening to the outside, and
The pump guard is locked so as to be rotatable around the other screw by inserting the screw through the elongated hole and by hooking a shaft portion of the other screw into the notch groove. The pump guard for a dishwasher according to claim 1. A cylindrical collar member is passed through the shaft portion of the screw,
On the front end side of the collar member, a front end surface that contacts the side surface of the cleaning tank, and a step portion formed around the front end surface and spaced from the side surface are formed,
A part of the said mounting plate has entered into the clearance gap between the said level | step-difference part of the said collar member, and the said side surface, For dishwashers as described in any one of Claims 1-5 characterized by the above-mentioned. Pump guard.

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