JP4746957B2 - Dishwasher - Google Patents

Description

  The present invention relates to a dishwasher for cleaning and rinsing dishes such as dishes and teacups.

  As this type of conventional dishwasher, for example, there are dishwashers described in Patent Documents 1 to 3. In the dishwasher described in Patent Document 1, columns are provided at each of the four corners of the machine room, and a panel is attached between the columns. Moreover, the rigidity of the lower part of the dishwasher is enhanced by installing a plate-shaped reinforcing member between the columns.

Moreover, in the tableware washing machine described in patent document 2, the mode of the wiring connection from the tableware washing machine main body to the hot water heater installed separately is shown. Moreover, in the tableware washing machine described in patent document 3, a mode that the rinse pump was attached to the side surface of the rinse water tank is shown.
JP 2005-34447 A Japanese Patent Laid-Open No. 2003-19101 JP 2005-34376 A

  As described above, Patent Document 1 discloses a reinforcing member that is installed between columns. This reinforcing member only structurally reinforces the dishwasher, but there has been a demand for cost reduction by having some relation with parts in the machine room.

  Then, an object of this invention is to provide the dishwasher which enabled cost reduction, aiming at intensity | strength improvement.

  In order to achieve the above-mentioned object, the present invention is arranged at the lower side of a washing room in a dishwasher for washing and rinsing dishes by injecting water from an injection nozzle arranged in the washing room. A reinforcing member is bridged between struts erected at the corner of the machine room, and functional parts for performing cleaning and rinsing are fixed to the reinforcing member.

  According to this configuration, the reinforcing member spanned between the support columns not only structurally reinforces the dishwasher, but also fixes a functional component for performing cleaning or rinsing of the dishwasher. Since it is used, the reinforcing member can be used effectively.

  Moreover, in the dishwasher mentioned above, it is preferable that a functional component is a connection component of electrical wiring, and a reinforcement member is arrange | positioned inside the detachable exterior panel which covers a machine room. According to this configuration, the reinforcing member spanned between the columns is used not only to structurally reinforce the dishwasher but also to fix the connecting parts of the electrical wiring. In particular, the user can connect the electrical wiring to the connection part of the electrical wiring fixed to the reinforcing member by removing the exterior panel covering the machine room.

  Moreover, in the dishwasher mentioned above, it is preferable that the electrical wiring is extended along the outer surface of the reinforcement member between the reinforcement member and the exterior panel. As described above, the electric wiring extended along the outer side surface of the reinforcing member is not easily affected by electric noise generated from components (for example, a cleaning pump, a rinsing pump, etc.) arranged inside the reinforcing member. .

  Moreover, in the dishwasher mentioned above, it is preferable that a functional component is a washing pump by which a water supply pipe and a discharge pipe were connected with the washing water tank arrange | positioned in the machine room. According to this configuration, the reinforcing member spanned between the columns is used not only to structurally reinforce the dishwasher but also to fix the washing pump connected to the washing tank. Therefore, it is possible to firmly fix the washing pump to suppress vibrations and increase the strength of the dishwasher body.

  The present invention can reduce costs while increasing strength.

  Hereinafter, a preferred embodiment of a dishwasher according to the present invention will be described in detail with reference to the drawings.

  As shown in FIG.1 and FIG.2, the dishwasher 1 has the washing machine main body 2 made from stainless steel. The cleaning machine main body 2 is partitioned into an upper portion 2a in which a cleaning chamber 3 is formed and a lower portion 2b in which a machine chamber 4 (see FIG. 3) is formed. Further, at the corner on the back side of the washing machine main body 2, two support columns 6, 6 extending in the vertical direction across the upper part 2 a and the lower part 2 b are arranged, and between the support columns 6, 6, the back surface Panel 5 extends.

  A box-shaped door 7 for opening and closing the cleaning chamber 3 is provided on the upper portion 2 a of the cleaning machine body 2. The door 7 is guided in a vertical direction by a pair of left and right guide rails (not shown) disposed on the inner side of the pair of left and right stainless steel columns 6 and 6, and has a handle 8 extending horizontally in the front. Can be moved up and down. The ends of a pair of left and right pivot arms 10 are fixed to both ends of the handle 8, and each pivot arm 10 is disposed obliquely along the side surface 7 a of the door 7. In order to move the door 7 up and down with respect to the rotational movement of the handle 8, the upper end of the link portion 16 disposed along the side surface 7a of the door 7 is rotatably connected to the rotational arm 10. The lower end of the link portion 16 is connected to the door 7 via the shaft pin 16a. In addition, the leg part 9 is attached to the four corners of the bottom face of the washing machine main body 2, and the stable installation of the dishwasher 1 is possible.

  A flip-up rack rail 11 is detachably disposed in the cleaning chamber 3 described above, and a grid-like tableware rack (not shown) in which tableware after eating and drinking is arranged on the rack rail 11. ) Is placed. Furthermore, in the upper part of the cleaning chamber 3, a rotatable upper cleaning nozzle 12 having three arms extending radially and a rotatable upper rinsing nozzle 13 having two arms extending in a straight line are concentric. Is arranged. Similarly, a rotatable lower cleaning nozzle 14 and a lower rinsing nozzle 15 are concentrically disposed in the lower part of the cleaning chamber 3.

  Next, as shown in FIG. 3, the machine room 4 is covered with a stainless exterior panel P <b> 2 (see FIG. 1) disposed on the front surface, the left surface, and the right surface of the lower portion 2 b of the cleaning machine body 2. Each exterior panel P2 is detachable from the washing machine body 2. FIG. 3 shows a state where the exterior panel covering the front surface and the right surface is removed. The back side of the machine room 4 is supported by the above-described support columns 6 and 6, while the front side of the machine room 4 is supported by two support columns 28 and 28 provided upright at the front side corners. In FIG. 3, for the convenience of describing the functional components in the machine room 4, a part of the support column 28 erected at the corner on the right side of the front surface is shown cut.

  As shown in FIG. 3, the machine room 4 is provided with a wash water tank 17 protruding from the wash room 3 side. A cleaning water supply pump (hereinafter referred to as “cleaning pump”) 19 is provided in front of the cleaning water tank 17. The washing pump 19 is connected to a washing water circulation pipe 21 (see FIG. 2). The washing water circulation pipe 21 passes through the washing water tank 17 and the washing chamber 3, and the upper washing nozzle 12 and the lower washing nozzle 14. It is connected to the. The cleaning pump 19 is a functional component that is disposed inside the machine room 4 to execute cleaning and rinsing.

  Further, a rinsing water tank to which rinsing water is supplied from an external booster (not shown) is accommodated in the machine room 4, and this rinsing water tank contains a rinsing water supply pump (hereinafter referred to as “rinsing pump”). 24 is connected. The rinsing water tank is located at the left back of the machine room 4 and is not visible in FIG. The rinsing pump 24 is connected to a rinsing water flow pipe 27 (see FIG. 2). The rinsing water flow pipe 27 passes through the washing water tank 17 and the washing chamber 3 to the upper rinsing nozzle 13 and the lower rinsing nozzle 15. It is connected.

  In the machine room 4, a control box 30 is disposed below the washing water tank 17. The control box 30 is disposed so as to extend in the front-rear direction in the machine room 4 and is fixed to the bottom plate P <b> 1 of the cleaning machine body 2. Inside the control box 30, control parts for controlling the cleaning and rinsing operations of the dishes by the dishwasher 1 are accommodated.

  In the machine room 4, a detergent supply device 35 is fixed at a position close to the front exterior panel P2 (see FIG. 1) on the bottom plate P1. The detergent supply device 35 stores a liquid or powdery detergent and supplies the detergent to the washing water in accordance with a command from a control component in the control box 30. In addition, although the detergent supply apparatus 35 is a standard specification type of the dishwasher 1, it is also possible to attach a non-standard detergent supply apparatus to the dishwasher 1. Although not shown, a rinse agent supply device for supplying a rinse agent to the rinsing water can be attached on the bottom plate P1 of the machine room 4.

  As described above, a booster (a water heater, not shown) for supplying warm water to the dishwasher 1 is installed outside the dishwasher 1. The booster warms water to a desired temperature using electricity and then supplies it to the rinsing water tank. The booster is connected to the control component of the control box 30 through electrical wiring, and exchanges information such as temperature, water level, operation timing, and error with the control component. There is also a type of booster that burns combustible gas to warm water to a desired temperature and then supplies it to the dishwasher 1.

  Next, with reference to FIG. 4, the reinforcement member 40 spanned between the support | pillars 28 and 28 of the front side is demonstrated. FIG. 4 shows a state before the reinforcing member 40 is attached between the support columns 28 on the front side of the machine room 4. As shown in the drawing, the reinforcing member 40 is a beam-like member having a horizontal direction as a longitudinal direction. The reinforcing member 40 is formed by cutting a single steel plate into a substantially strip shape and then bending the edge of the steel plate. Bolt holes 40b for inserting the fixing bolts 41 are formed in the left and right end portions 40a of the reinforcing member 40 through screw holes 28a formed in the support column 28. Further, the lower end portion 40 c of the reinforcing member 40 is bent in a U shape, and a flange portion 40 c extending along the longitudinal direction of the reinforcing member 40 is formed. Further, the central portion of the reinforcing member 40 is a flat plate portion 40d, and a through hole for inserting the fixing bolt 42 into the screw hole 19a formed in the cleaning pump 19 is provided on the right side portion of the flat plate portion 40d. 40e is formed. On the other hand, a plurality of connection parts 43 made of connectors or the like are fixed to the left side portion of the flat plate portion 40d.

  FIG. 5 shows a state after the reinforcing member 40 is attached between the support columns 28 on the front side of the machine room 4. In the left and right end portions 40 a of the reinforcing member 40, four fixing bolts 41 are screwed into screw holes 28 a formed in the column 28, and the reinforcing member 40 is firmly fixed to the column 28. On the other hand, the two fixing bolts 42 inserted into the through holes 40 e of the flat plate portion 40 d of the reinforcing member 40 are screwed into the screw holes 19 a formed in the cleaning pump 19, so that the cleaning pump 19 is connected to the reinforcing member 40. It is firmly fixed to.

  FIG. 6 shows a state where the cleaning pump 19 is supported by the cleaning water tank 17 and the reinforcing member 40. In FIG. 6, the cleaning pump 19, the cleaning water tank 17, and the reinforcing member 40 are viewed from the right side. A water supply pipe 20 </ b> A and a discharge pipe 20 </ b> B protruding from the lower part of the cleaning pump 19 toward the cleaning water tank 17 are inserted into the two pipe portions 18 </ b> A and 18 </ b> B protruding from the side surface of the cleaning water tank 17. Yes. Thus, the connection part of the washing water tank 17 and the washing pump 19 is connected in a double pipe structure, so that the washing water tank 17 supports the washing pump 19 in a stable state to some extent. Further, as described above, the upper portion of the front side of the cleaning pump 19 is fixed to the reinforcing member 40 with the bolts 42. As described above, the cleaning pump 19 is fixed and supported by the cleaning water tank 17 and the reinforcing member 40, so that the cleaning pump 19 is stably installed in the machine room 4, and vibration of the cleaning pump 19 is suppressed during operation. Is done. In the reinforcing member 40, a cover 44 is covered from above and attached to the left side portion of the flat plate portion 40 d to which the plurality of connection parts 43 are fixed by screws 45. The front portion 44 a of the cover 44 covers the front opening of the reinforcing member 40. On the other hand, the rear portion 44 b of the cover 44 is disposed with a gap with respect to the reinforcing member 40, and covers the connection component 43 that protrudes to the back surface side of the reinforcing member 40. Providing such a cover 44 can improve the waterproofness and dustproofness in the vicinity of the connection component 43.

  If the cleaning pump 19 is only fixed to the cleaning water tank 17 without fixing the cleaning pump 19 to the reinforcing member 40, the cleaning pump 19 is removed from the cleaning water tank 17 when the cleaning pump 19 receives an external force. Therefore, in order to securely fix the cleaning pump 19 to the cleaning water tank 17, dedicated fixing parts such as a band and a stay are required. Such a dedicated fixing part has only a single role of fixing the cleaning pump 19 and causes an increase in cost. Further, when the dishwasher 1 is manufactured, the process of fixing the cleaning pump 19 using a dedicated fixing part and the process of fixing the reinforcing member 40 between the support columns 28 are separate processes, so that the number of assembling steps is large. Become.

  On the other hand, when the washing pump 19 is fixed to the reinforcing member 40 and the washing water tank 17 as in the above-described embodiment, the reinforcing member 40 spanned between the columns 28 is used for the dishwasher 1. In addition to reinforcing the structure, it is used to fix a cleaning pump 19 attached to the cleaning water tank 17. Therefore, it is possible to firmly fix the cleaning pump 19 in the machine room 4 without increasing the number of parts. When the dishwasher 1 is manufactured or installed, the water supply pipe 20A and the discharge pipe 20B of the cleaning pump 19 are inserted into the pipe portions 18A and 18B of the cleaning water tank 17, and then the reinforcing member 40 is attached to the column 28 and the cleaning pump 19. Since it is only fixed to, the assembly man-hour can be reduced.

  Further, the strength of the washing machine body 2 is increased by disposing the reinforcing member 40 between the columns 28, 28, and the washing machine is also secured by fixing the washing water tank 17, the washing pump 19, and the reinforcing member 40 to each other. The strength of the main body 2 can be greatly increased. This makes it possible to reduce the thickness of the plate material that constitutes the structural parts (the support column 28, the reinforcing member 40, etc.) that structurally support the dishwasher 1, thereby facilitating bending of the structural parts, It is possible to reduce the number of welding parts for reinforcing the structure, which contributes to cost reduction. In the above-described embodiment, the cleaning pump 19 is bolted to the reinforcing member 40, but the rinsing pump (functional component) 24 may be fixed to the reinforcing member 40.

  Next, with reference to FIG. 7, the connection parts (functional parts) 43A, 43B, 43C, and 43D for connecting the electric wiring L fixed to the reinforcing member 40 will be described. As described above, a plurality of connection parts 43 </ b> A to 43 </ b> D for connecting the electrical wiring L of the functional parts of the dishwasher 1 are fixed to the left side portion of the flat plate part 40 d of the reinforcing member 40. Here, the connection component indicated by reference numeral 43A is a connector for connecting a booster control signal line. Moreover, the connection component shown by the code | symbol 43B is a 100V power outlet for supplying electric power to a booster. Also, the connection component indicated by reference numeral 43C is a connector for connecting the power supply line and the control signal line of the standard detergent supply device 35. Further, the connection component indicated by reference numeral 43D is a terminal block for connecting a power supply line and a control signal line of a detergent supply device that is not standard specification. These connecting parts 43A to 43D are fixed together on the left side of the flat plate portion 40d of the reinforcing member 40, and are easy to handle for the operator.

  If the connection work of the electrical wiring L is performed without fixing the connection parts 43A to 43D of the electrical wiring L to the reinforcing member 40, a lot of man-hours are required to complete the connection work of the electrical wiring L. End up. Specifically, the operator first removes the front panel P2, then pulls out the control box 30 to the front side, and removes the canopy 33 of the control box 30. Then, the operator connects one end of the electric wiring L to a connector or a terminal block for connecting the electric wiring L in the control box 30, and pulls out the electric wiring L from the control box 30. The other end is connected to a connector or a terminal block of a booster, a detergent supply device 35, a rinse agent supply device, or the like. Furthermore, the operator attaches the canopy 33 of the control box 30 again, pushes the control box 30 into the machine room 4, and attaches the front panel P2. Further, along with these operations, it is necessary to loosen or tighten a large number of bolts and screws.

  On the other hand, since the connection parts 43A to 43D of the electric wiring L are fixed to the reinforcing member 40 as described above, the electricity drawn out from the control box 30 when the dishwasher 1 is manufactured or installed. The wiring L can be easily connected to the connection components 43A to 43D. For this reason, when the worker performs the connection work of the electrical wiring L, the worker removes the front panel and then connects the booster and detergent supply device 35 to the connection parts 43A to 43D exposed at the front easy-to-handle positions. What is necessary is just to connect the electrical wiring L pulled out from the rinse agent supply apparatus. Therefore, the worker can easily and quickly perform the wiring work of the connection parts 43A to 43D with the electric wiring L.

  Further, when the electrical wiring 36A is connected in advance to the connection components 43A to 43D, it is not necessary to perform operations such as pulling out the control box 30 from the machine room 4 and removing the canopy 33 of the control box 30. Problems caused by these operations can be prevented beforehand. For example, it is possible to prevent an error in storing the control box 30 or forgetting to tighten the screws. In addition, the connecting parts 43A to 43D of the electric wiring L are not attached to parts specially prepared for fixing the connecting parts 43A to 43D, but are reinforcing members for structurally reinforcing the dishwasher 1. Since it is attached to 40, the number of parts does not increase, which is preferable in terms of cost.

  Next, with reference to FIG. 7, the extended state of the electrical wirings 36A and 36B between the control box 30 and the detergent supply device 35 will be described. FIG. 7 shows a state where one electrical wiring 36A is pulled out from the control box 30 and extends to the connector 43C, and another electrical wiring 36B is pulled out from the detergent supply device 35 and extends to the connector 43C. ing. Hereinafter, these electric wirings 36A and 36B will be described in more detail.

  Two insertion holes 31 and 32 penetrating from the inside to the outside of the control box 30 are provided on the side surface of the control box 30, and the electrical wiring 36 </ b> A connected to the control component in the control box 30 is one insertion hole. It is drawn from 31. The electrical wiring 36 </ b> A extends forward from the insertion port 31 to the vicinity of the right front column 28, and then extends upward along the right front column 28 to reach the reinforcing member 40. In the vicinity of the right end of the reinforcing member 40, a through hole 40f penetrating the flat plate portion 40d of the reinforcing member 40 is provided, and the electrical wiring 36A is passed through the through hole 40f and drawn out from the back side of the reinforcing member 40 to the front side. The electrical wiring 36 </ b> A extends along the flange 40 c formed at the lower end of the reinforcing member 40. A through hole 40g penetrating the flat plate portion 40d of the reinforcing member 40 is provided on the lower side of the connector 43C of the reinforcing member 40, and the electrical wiring 36A is passed through the through hole 40g and pulled out from the front side to the back side of the reinforcing member 40. And connected to the terminal portion on the back side of the connector 43C.

  On the other hand, the electrical wiring 36 </ b> B extending from the detergent supply device 35 extends from the detergent supply device 35 to the vicinity of the left front column 28, and then extends upward along the left front column 28 to reach the reinforcing member 40. Then, the electrical wiring 36B is passed through the through hole 40g, drawn out from the back side of the reinforcing member 40 to the front side, and connected to the terminal portion on the front side of the connector 43C. In this way, the control box 30 and the detergent supply device 35 are connected by the two electric wires 36A and 36B via the connector 43C.

  The electrical wiring 36A, 36B that connects the control box 30 and the detergent supply device 35 is transmitted with a relatively small on / off signal having a voltage difference of about DC 12V or 24V, and therefore uses a low-power line with a small capacity. . Therefore, during the cleaning or rinsing operation, the on / off signal transmitted through the electrical wirings 36A and 36B is easily affected by the cleaning pump 19 or the rinsing pump 24, and electrical noise is likely to occur. On the other hand, as described above, by extending the electrical wirings 36A and 36B along the flange portion 40c of the reinforcing member 40 between the reinforcing member 40 and the exterior panel P2, the flat plate portion 40d becomes a barrier. Therefore, it is difficult to be affected by the cleaning pump 19 or the rinsing pump 24, and electrical noise can be prevented from occurring in the on / off signal.

  Next, with reference to FIG. 8, the extended state of the electrical wirings 37A and 37B between the control box 30 and the booster will be described. FIG. 8 shows a state where one electrical wiring 37A is pulled out from the control box 30 and extends to the connector 43A, and another electrical wiring 37B is pulled out from a booster (not shown) and extends to the connector 43A. Has been. Hereinafter, these electric wirings 37A and 37B will be described in more detail.

  An electrical wiring 37 </ b> A connected to a control component in the control box 30 is drawn out from one insertion port 32. The electrical wiring 37 </ b> A extends forward from the insertion opening 32 to the vicinity of the right front column 28, and then extends upward along the right front column 28 to reach the reinforcing member 40. The electrical wiring 37A extends to the left along the back surface of the reinforcing member 40 and is connected to the terminal portion on the back side of the connector 43A.

  On the other hand, the electric wiring 37 </ b> B extending from the booster is passed through a through hole (not shown) formed in the bottom plate P <b> 1 of the machine room 4 into the machine room 4 and rises along the left front column 28 to reach the reinforcing member 40. Are pulled out from the back side of the through hole 40h formed in the reinforcing member 40 to the front side and connected to the front side terminal portion of the connector 43A. In this way, the control box 30 and the booster are connected by the electrical wirings 37A and 37B.

  A signal having a relatively large voltage difference of AC 200V is transmitted to the electric wirings 37A and 37B between the control box 30 and the booster, and therefore a high-capacity high-power line is used. Therefore, since the signal transmitted through the electric wirings 37A and 37B is hardly affected by noise from the cleaning pump 19 or the rinsing pump 24, the electric wirings 37A and 37B are extended to the back side of the reinforcing member 40 as described above. Has been established.

  In the above-described embodiment, the cleaning pump 19 and the connection parts 43A to 43D are fixed to the reinforcing member 40 as functional parts, but other functional parts may be fixed to the reinforcing member 40.

It is a perspective view which shows the external appearance of the dishwasher which concerns on embodiment of this invention. It is sectional drawing which shows the inside of a washing chamber. It is a perspective view which shows the inside of the machine room of a dishwasher. It is a perspective view which shows a mode that a reinforcement member is attached to a support | pillar. It is a perspective view which shows a mode that the reinforcement member was attached to the support | pillar. It is a side view which shows the arrangement | positioning relationship of a washing water tank, a washing pump, and a reinforcement member. It is a perspective view which shows the wiring extended in the machine room. It is a perspective view which shows the wiring extended in the machine room.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Dishwasher, 3 ... Washing room, 4 ... Machine room, 12 ... Upper washing nozzle, 13 ... Upper rinsing nozzle, 14 ... Lower washing nozzle, 15 ... Lower rinsing nozzle, 17 ... Washing water tank, 19 ... Washing pump (functional part), 20A ... water supply pipe, 20B ... discharge pipe, 24 ... rinsing water supply pump, 28 ... strut, 35 ... detergent supply device, 40 ... reinforcing member, 43A-43D ... connection parts (functional parts), L: Electric wiring, P2: Exterior panel.

Claims (5)

In a dishwasher for cleaning and rinsing dishes by spraying water from an injection nozzle arranged in the cleaning chamber,
Reinforcing members are bridged between struts erected at the corners of the machine room located below the cleaning room, and functional parts for performing the cleaning and rinsing are fixed to the reinforcing members. Has been
The functional component is a pump attached to a side surface of a washing water tank disposed in the machine room,
The reinforcing member is disposed at a side height of the washing water tank and the pump, and is fixed to a part of the pump opposite to the side attached to the washing water tank. Dishwasher featuring.   2. The dishwasher according to claim 1, wherein the pump is fixed by the reinforcing member after a water supply pipe and a discharge pipe are inserted into a washing water tank disposed in the machine room.   3. The dishwasher according to claim 1, wherein the pump is a washing pump in which a water supply pipe and a discharge pipe are connected to a washing water tank disposed in the machine room.   The said functional component is a connection component of electrical wiring, The said reinforcement member is arrange | positioned inside the detachable exterior panel which covers the said machine room, The Claim 1 characterized by the above-mentioned. Dishwasher.   5. The dishwasher according to claim 4, wherein the electrical wiring extends along an outer surface of the reinforcing member between the reinforcing member and the exterior panel.

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