washing machine

Abstract

To provide a washing machine having a gasket which allows smooth opening and removal of a mold even when injection is performed using a moving mold. [Solution] The washing machine includes a tub that is arranged inside a casing to store wash water and has an inlet formed on its front side, a drum that is rotatably arranged inside the tub, a gasket body that forms a passage connecting the inlet and the inlet of the tub, a plurality of nozzles that are arranged on the inner surface of the gasket body to spray wash water into the drum, a gasket that includes a plurality of port insertion tubes that protrude from the outer surface of the gasket body and communicate with each of the plurality of nozzles, a plurality of discharge ports that are inserted into the plurality of port insertion tubes, respectively, and a pump that pressure-feeds the wash water discharged from the tub to the plurality of discharge ports, and the plurality of port insertion tubes include first and second port insertion tubes that are arranged vertically in the first region of the first and second regions that are divided left and right of the gasket body and are parallel to each other, and third and fourth port insertion tubes that are arranged vertically in the second region and are parallel to each other.

Description

[Technical Field]

[0001] The present invention relates to a washing machine, and more particularly to a washing machine in which a nozzle for injecting circulating water into a drum is a gas This relates to a washing machine installed in a kettle. [Background technology]

[0002] Korean Patent Publication No. 10-2018-0131894 (hereinafter referred to as "Prior Art") discloses a washing machine equipped with a nozzle that sprays circulating water pressure-fed by a pump into the drum. The washing machine has a casing that forms the exterior and a tub that collects water. A plurality of nozzles are provided along the inner circumferential surface of the gasket, and protrude from the outer circumferential surface of the gasket. A number of port insertion tubes communicate with the nozzles, respectively.

[0003] A guide pipe is provided to guide the water (circulating water) pumped by the pump, and the guide pipe A number of discharge ports protruding from the annular flow path are inserted into the number of port insertion pipes, respectively. will be done.

[0004] Each of the port insertion tubes protrudes generally radially outward from the outer circumferential surface of the gasket. Correspondingly, each of the discharge ports is also radially spaced from the annular flow path. It protrudes inwards.

[0005] In this way, the gasket configured in such a manner that the port insertion tubes extend radially is The mold must be moved in the direction in which the port insertion tube extends, making the mold structure complicated. There was a problem.

[0006] In addition, since the directions in which the discharge ports are inserted into the respective port insertion tubes are different, Two or more nozzle water supply ports can be simultaneously assembled to two or more port insertion pipes. This also created a problem of making the manufacturing process more complicated. Summary of the Invention [Problem to be solved by the invention]

[0007] The problems to be solved by the present invention are, first, to provide a method for discharging circulating water into a drum using a plurality of nozzles. The gasket is easily formed by injection molding. The present invention aims to provide a washing machine having a structure that can be molded into a washing machine.

[0008] Second, two or more nozzles are provided on both the left and right sides of the gasket, and the nozzles are circulated. A port insertion tube for fixing the water supply port for supplying circulating water is formed integrally with the gasket. To provide a washing machine.

[0009] Third, the washing machine has a feature in which the port insertion tubes are arranged parallel to each other.

[0010] Fourth, the distribution pipe that supplies circulating water to the nozzle can be easily assembled to the gasket. The present invention aims to provide a washing machine that can

[0011] The object of the present invention is not limited to the above-mentioned object, but may include other object not mentioned above. will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0012] The washing machine of the present invention is a device in which water is discharged from a tub that houses a rotating drum and pumped by a pump. The wash water is supplied to a plurality of nozzles arranged in the gasket through a plurality of discharge ports.

[0013] The gasket is a passage that connects an inlet formed in the casing and an inlet of the tub. a gasket body forming a passage, the plurality of nozzles being disposed on an inner periphery of the gasket body; The gasket is provided on the outer peripheral surface of the gasket body. and a plurality of port insertion tubes respectively communicating with the plurality of nozzles. do).

[0014] The plurality of discharge ports protrude from the outer peripheral surface of the gasket body. Each is inserted into a port insertion tube.

[0015] The plurality of port insertion tubes are arranged in first and second regions that are arranged on the left and right sides of the gasket body. The first region includes first and second port insertion tubes arranged vertically and parallel to each other.

[0016] The gaskets are arranged vertically in the second region, and have third and fourth ports parallel to each other. Includes an insertion tube.

[0017] The first and second port insertion tubes may extend horizontally in a first direction. The first port insertion tube is located above the intermediate height of the gasket, and the second port insertion tube is located above the intermediate height of the gasket. It may be located below mid-height of the scute.

[0018] The third and fourth port insertion tubes may extend horizontally in a direction opposite to the first direction. The third port insertion tube may be located at the same height as the first port insertion tube, and the fourth port insertion tube may be located at the same height as the first port insertion tube. The port insertion tube may be located at the same height as the second port insertion tube.

[0019] The gasket includes a casing joint portion that is joined around the inlet and a tab joint portion that is joined around the inlet. a tab joint portion joined around the mouth, and a portion extending from the casing joint portion to the tab joint portion; and a gasket body.

[0020] The first to fourth port insertion tubes protrude from the outer circumferential surface of the gasket body.

[0021] The gasket body extends from the casing coupling portion toward the tab coupling portion. a rim portion, an inner diameter portion extending from the rim portion toward the casing joint portion, and a and an outer diameter portion extending from the tab connection portion.

[0022] The first to fourth port insertion tubes may protrude from an outer peripheral surface of the outer diameter portion.

[0023] The second port insertion tube may have a length longer than that of the first port insertion tube. The first port insertion tube is located a first distance above the midpoint of the gasket body. The second port insertion tube is positioned at the first distance from the mid-height point of the gasket body. The second distance is shorter than the first distance.

[0024] The fourth port insertion tube may have a length shorter than that of the third port insertion tube. The port insertion tube is located a first distance above the midpoint of the gasket body. The fourth port insertion tube is located at a distance greater than the first distance from the midpoint of the gasket body. The second distance is located below the first distance.

[0025] The first and second port insertion tubes and the third and fourth port insertion tubes may be arranged symmetrically. stomach.

[0026] a circulation pipe for guiding the washing water discharged from the pump; a distribution pipe for supplying the washing water guided through the circulation pipe to the plurality of nozzles. nothing.

[0027] The distribution pipe has an inlet port connected to the circulation pipe and a supply port through the inlet port. The washing machine includes a first pipe section and a second pipe section that branch the collected washing water.

[0028] The plurality of discharge ports are arranged on the first pipeline portion, and the first and second port insertion portions are a first outlet port and a second outlet port, which are respectively inserted into the pipe; The third and fourth discharge ports are inserted into the third and fourth port insertion tubes, respectively.

[0029] First and second circulation pipes for guiding the washing water discharged from the pump, and a circulation pipe disposed in the first region. a first distribution pipe for guiding the washing water supplied through the first circulation pipe; and a second distribution pipe disposed in the washing area and guiding the washing water supplied through the second circulation pipe. .

[0030] The plurality of discharge ports are disposed in the first distribution pipe and are connected to the first and second port insertion pipes. the first and second outlet ports are inserted into the second distribution pipe, respectively; The fourth port insertion tube is inserted into third and fourth discharge ports. [Effects of the Invention]

[0031] The washing machine according to the present invention has one or more of the following advantages:

[0032] First, the washing machine of the present invention has two or more port inserts formed integrally with the gasket. Since the nozzles are arranged parallel to each other, the two or more nozzles can be shot using one moving mold. Even if the mold is removed, opening and demolding can be done smoothly.

[0033] Second, when viewed from the front, the gasket is divided into two halves, either the first or second region. Two or more port insertion pipes are formed parallel to each other, so that the distribution pipe is When the discharging pipe is installed in the same direction, the discharge ports of the discharging pipes are moved in substantially the same direction. Since the discharge ports can be inserted into the port insertion tubes at the same time, assembly is facilitated.

[0034] In particular, the distribution pipe has a first pipe section and a second pipe section branched from the circulating water connection port. Two or more of the discharge ports are provided in either the first pipe line portion or the second pipe line portion. The two or more discharge ports are formed so as to extend radially, In the case where the two or more port insertion pipes are also configured to extend in the radial direction in response to the discharge, Since the insertion directions between the outlet ports are different, the outlet ports are inserted into the port insertion tubes at the same time. However, the present invention allows the port insertion tubes (or discharge ports) to be arranged in parallel with each other. This problem was solved by placing [Brief explanation of the drawings]

[0035] [Figure 1] 1 is a perspective view showing a washing machine according to an embodiment of the present invention; [Figure 2] FIG. 2 is a perspective view showing the inside of the washing machine shown in FIG. [Figure 3] FIG. 3 is a perspective view showing a part of the washing machine shown in FIG. 2. [Figure 4] 4 is a right-side cross-sectional view of the washing machine shown in FIG. 2. FIG. [Figure 5] FIG. 5 is a perspective view of the pump shown in FIG. [Figure 6(a)] FIG. 6 is a cross-sectional view showing a circulating water chamber of the pump shown in FIG. 5. [Figure 6(b)]FIG. 6 is a cross-sectional view of the drain chamber of the pump shown in FIG. 5. [Figure 7] FIG. 4 is a perspective view showing a coupled state of the gasket and distribution pipe shown in FIG. 3. [Figure 8] FIG. 8 is a front view of FIG. [Figure 9] FIG. 8 is a right side view of the gasket shown in FIG. 7. [Figure 10] FIG. 8 is a rear view of the gasket shown in FIG. 7. [Figure 11] FIG. 8 is a front view of the distribution pipe shown in FIG. 7. [Figure 12] FIG. 12 is a right side view of FIG. [Figure 13] FIG. 1 is a plan view of an injection molding machine for making a gasket according to one embodiment of the present invention. [Figure 14] FIG. 8 is a cross-sectional view showing the coupling structure of the distribution pipe and the nozzle shown in FIG. 7. [Figure 15] FIG. 9 is a cross-sectional view taken along line II-II in FIG. 8. [Figure 16] FIG. 9 is a cross-sectional view taken along line III-III' in FIG. 8. [Figure 17] FIG. 10 shows the gasket and distribution pipe assembly, particularly showing the nozzle position and nozzle jet width. [Figure 18] FIG. 10 shows a pump according to another embodiment of the present invention. [Figure 19] FIG. 10 shows a distribution pipe according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0036] The advantages and features of the present invention and the manner in which they are achieved are described in detail in conjunction with the accompanying drawings. This will become clearer with reference to the embodiments described below. The present invention is not limited to the embodiments disclosed herein, but may be embodied in various other forms and should not be construed as limiting the scope of the present invention. The embodiments are provided so that the disclosure of the present invention will be complete and will be readily understood by those skilled in the art. These and other related documents are provided so that those skilled in the art will be fully aware of the scope of the invention. The invention is defined only by the scope of the claims. Represents a composition element.

[0037] The present invention will now be described in detail with reference to the accompanying drawings.

[0038] FIG. 1 is a perspective view showing a washing machine according to an embodiment of the present invention. 2 is a perspective view showing the inside of the washing machine shown in FIG. 3 is a perspective view showing a part of the washing machine shown in FIG. 4 is a right-side cross-sectional view of the washing machine shown in FIG. 2. FIG. 5 is a right-side cross-sectional view of the pump shown in FIG. 2. 6(a) is a cross-sectional view showing the circulating water chamber of the pump shown in FIG. 6(b) is a cross-sectional view showing the drain chamber of the pump shown in FIG.

[0039] Referring to Figs. 1 to 6, a casing 10 forms the exterior of the washing machine, and a washing machine cover is provided on the front. The casing 10 has an opening 12h for receiving laundry. A cabinet 11 has a side, a right side, and a back, and a door is connected to the open front of the cabinet 11. The cabinet 11 includes a front panel 12 having an insertion port 12h formed therein. The top is open, and a horizontal base 15 for supporting the washing machine is connected to the bottom. The casing 10 also includes a top plate 13 that covers the open top surface of the cabinet 11. and a control panel 14 disposed above the front panel 12.

[0040] A tub 31 for collecting water is disposed inside the casing 10. The tub 31 is An entrance (or a tab entrance 31h) is formed on the front side so that the contents can be inserted. The tab 31 is connected to the housing 30 by an annular gasket 60 .

[0041] A door 20 for opening and closing the insertion port 12h is rotatably connected to the casing 10. 0 includes a door frame 21 that is open at the approximate center and rotatably connected to a front panel 12, The door frame 21 includes a transparent window 22 installed in the center of the open area. The window 22 is convex rearward and is at least partially surrounded by the inner circumferential surface of the gasket 60. The area may be located within a designated area.

[0042] The gasket 60 is for preventing the water accumulated in the tub 31 from leaking. The gasket 60 extends from the annular front end to the annular rear end, and is connected to the inlet 12h and the tab. The front end of the gasket 60 forms a tubular passageway connecting the inlet 31h to the casing. 10 is fixed to the front panel 12, and the rear end is fixed around the tab inlet 31h of the tab 31. will be done.

[0043] The gasket 60 may be made from a flexible or elastic material. The gasket 60 may be made of natural rubber or synthetic resin. The gasket 60 may be made of EPDM (Ethylene Propylene Diene Methacrylate) or other suitable material. pylene diene monomer), TPE (Thermo Plastic The gasket 60 may be formed of a material such as a tubular elastomer. The part that defines the inside of the shape is called the inner periphery (or inner periphery surface) of the gasket 60, and the opposite The portion on the side of the gasket 60 is called the outer periphery (or outer surface) of the gasket 60.

[0044] A drum 32 for accommodating laundry is provided rotatably within the tub 31. The drum 32 is provided with a number of through holes 32h so that the water can flow into the drum 32. .

[0045] The drum 32 is disposed so that the entrance for inserting laundry is located at the front, and is substantially horizontal. It rotates around the center line C. However, the word "horizontal" here is not used in the strict mathematical sense. That is, as in the embodiment, the rotation center line C is Even if the object is tilted at a certain angle, it is closer to horizontal than vertical, so it is considered to be essentially horizontal. can.

[0046] The inner surface of the drum 32 is provided with a plurality of lifters 34. The drum 32 is positioned at a certain angle to the center of the drum 32. When the drum 32 rotates, the laundry is lifted. The object is repeatedly lifted up by the rotor 34 and then dropped.

[0047] A drive unit 38 for rotating the drum 32 is further provided. A drive shaft 38 a passes through the rear portion of the tub 31 and is connected to the drum 32 .

[0048] Preferably, the drive unit 38 comprises a direct-coupled wash motor, The rotor is rotated by the magnetic force acting between the stator fixed to the rear of the tab 31 and the stator. The drive shaft 38a may rotate integrally with the rotor.

[0049] The tub 31 is supported by a damper 16 mounted on a base 15. Vibrations of the tab 31 induced during rotation are damped by the damper 16. However, depending on the embodiment, the tab 31 may be attached to a hanger (e.g., a spring) that suspends the tab 31 within the casing 10. The device may further include a sensor.

[0050] At least one water supply hole that guides water supplied from an external water source such as a tap to the tub 31. The water supplied through the at least one water supply hose is supplied to the water supply system (not shown), as will be described later. a water supply unit that controls the supply of water to at least one of the water supply pipes 34a, 34b, and 34c; 33 will be provided.

[0051] Dispenser for supplying additives such as detergent and fabric softener into the tub 31 or drum 32 The dispenser 35 contains additives classified according to their types. The dispenser 35 may include a detergent storage section (not shown) for storing a detergent and a fabric softener storage section (not shown). and a softener storage section (not shown) for storing the softener.

[0052] The water supplied through the water supply unit 33 is selectively guided to each storage unit of the dispenser 35. At least one water supply pipe 34a, 34b, 34c is provided. At least one supply pipe 34a, 34b, 34c is connected to and disconnected from at least one supply pipe 34a, 34b, 34c. Includes a water valve (not shown).

[0053] At least one of the water supply pipes 34a, 34b, 34c is supplied via a cold water supply hose. a first water supply pipe 34a for supplying the supplied cold water to the detergent storage section; and a cold water supply hose. a second water supply pipe 34b for supplying cold water supplied through the second water supply pipe 34b to the fabric softener storage section; a third water supply pipe 3 for supplying hot water supplied through a hot water supply hose to the detergent storage section; Includes 4c.

[0054] The gasket 60 is provided with a water nozzle 42 for spraying water into the drum 32. A water supply pipe 39 is provided to guide the water supplied through the water supply pipe 33 to the water supply nozzle 42. The water nozzles 42 may be, but are not necessarily limited to, swirl nozzles or spray nozzles. When viewed from the front, the straight water nozzle 42 is located vertically above the rotation center line C. do.

[0055] The water discharged from the dispenser 35 is supplied to the tub 31 via a water supply bellows 37. A water supply port (not shown) connected to a water supply bellows 37 is formed on the side of the tub 31. That's fine.

[0056] The tub 31 is formed with a drain port for discharging water, and the drain bellows 17 is connected to the drain port. A pump that pumps the water discharged from the tub 31 through the drain bellows 17 is connected. A drain valve 96 for connecting and disconnecting the drain bellows 17 is further provided.

[0057] The pump 901 is a device for pumping the water discharged through the drain bellows 17 into the drain pipe 19. The pump 901 can selectively perform the functions of pumping the liquid into the circulation pipe 18 and pumping the liquid into the circulation pipe 18. The water that is pumped by the pump and guided along the circulation pipe 18 is called circulating water.

[0058] 5 and 6, the pump 901 includes a pump housing 91, a first pump Includes a motor 92, a first impeller 915, a second pump motor 93, and a second impeller 917 .

[0059] The pump housing 91 has an inlet port 911, a circulation port 912, and a drain port. A first impeller 913 is formed in the pump housing 91. A first chamber 914 and a second chamber 916 in which a second impeller 917 is housed are formed. The first impeller 915 is rotated by the first pump motor 92, and the second impeller 917 is It is rotated by a second pump motor 93 .

[0060] The first chamber 914 and the circulation port 912 are wound in the direction of rotation of the first impeller 915. The second chamber 916 and the drain port 913 form a spiral flow path. 2 forms a spiral flow path wound in the direction of rotation of the impeller 917. The rotation direction of each impeller 915, 917 is controllable and predetermined. .

[0061] The inlet port 911 is connected to the drain bellows 17 and connects the first chamber 914 and the second chamber The drain bellows 17 is connected to the inlet port 911. The water is supplied to the first chamber 914 and the second chamber 916 through the inlet port 911. do.

[0062] The first chamber 914 communicates with the circulation port 912, and the second chamber 916 communicates with the drain port. Therefore, the first pump motor 92 is operated and the first impeller 915 rotates. When the pump is turned on, the water in the first chamber 914 is discharged through the circulation port 912. When the second pump motor 93 is operated, the second impeller 917 rotates, causing the second chamber The water in the 916 is discharged through the drain port 913. The circulation port 912 is connected to the circulation pipe 18. The drain port 913 is connected to the drain pipe 19.

[0063] The pump 901 is capable of varying the flow rate (or discharge water pressure). The motors 92 and 93 may be variable speed motors whose rotation speeds can be controlled. Motors 92 and 93 are BLDC (Brushless Direct Current) motors. A pump motor (motor) is suitable, but is not necessarily limited to this. 2, 93 may further be provided with a driver for speed control, said driver being an inverter. The inverter driver converts AC power into DC power to power the target. The input to the motor is at the target frequency.

[0064] A control unit (not shown) for controlling the pump motors 92 and 93 may further be provided. The control unit is a proportional-integral controller (PI controller). integral controller), proportional integral derivative controller (PID contr oller:Proportional-Integral-Derivative c The controller is configured to include the pump motor output value ( For example, when the output current is input, the pump motor speed is already set based on this. The output value of the driver can be controlled so as to follow the set target rotation speed.

[0065] The control unit can control not only the rotation speed of the pump motors 92, 93 but also the rotation direction. In particular, the motors used in conventional pumps cannot control the direction of rotation at startup. Therefore, as shown in Figure 6, it is difficult to control the rotation of each impeller in a specific direction. The flow rate discharged from the discharge ports 912 and 913 changes depending on the rotation direction of the impeller. However, the present invention has the advantage that the rotational speed of the pump motors 92 and 93 at the time of startup is Since the direction can be controlled, problems such as those in the past do not occur, and the The discharge flow rate can be controlled to a constant value.

[0066] Meanwhile, the control unit controls not only the pump motors 92 and 93 but also the overall operation of the washing machine. The control of each part mentioned below is performed by the control of the control unit. I understand that.

[0067] Fig. 7 is a perspective view showing the state in which the gasket and the distribution pipe shown in Fig. 3 are joined together. 7. FIG. 9 is a right side view of the gasket shown in FIG. 7. FIG. 10 is a front view of the gasket shown in FIG. 11 is a rear view of the gasket shown in FIG. 7; and FIG. 11 is a front view of the distribution pipe shown in FIG. Figure 12 is a right side view of Figure 11. Figure 13 is a gasket according to one embodiment of the present invention. 14 is a plan view of an injection molding machine for manufacturing the distribution pipe and nozzle shown in FIG. 15 is a cross-sectional view taken along line II-II' in FIG. 8A is a cross-sectional view taken along line III-III' in FIG.

[0068] 7 to 16, the gasket 60 is inserted into the inlet 12h of the front panel 12. The casing connection portion 61 is connected around the tab inlet 31h. The gasket extends between the casing joint 61 and the tab joint 62. and body 63.

[0069] The front panel 12 is wound around the insertion port 12h on the outside. The casing connection part 61 is fitted into the recess formed by the part. The wire is wound around the groove 61r. After that, both ends of the wire are bound together, so that the casing joint 61 is fitted around the insertion port 12h. is firmly fixed to the

[0070] The tab 31 is wound around the entrance on the outside, and the wound portion forms The tab connection part 62 is fitted into the recessed part. A wire is wound around the tab connection part 62. After the wire is wound along the groove 62r, both ends of the wire are bound together. As a result, the tab connecting portion 62 is firmly connected to the periphery of the opening of the tab 31.

[0071] On the other hand, the casing joint 61 is fixed to the front panel 12, but the tab joint 62 is The gasket body 63 is displaced by the movement of the tab 31. Deformation must occur in response to the displacement. To ensure this deformation occurs smoothly, The gasket 60 is a section (or gasket) between the casing joint 61 and the tab joint 62. The tab 31 is moved in the direction (or radial direction) by the eccentricity of the tab body 63. The folding portion 63b is folded as it is opened.

[0072] 14 to 16, the gasket body 63 includes a casing. A tubular joint extending from the tab joint 61 to the tab joint 62 (or toward the rear) A rim portion 63a is formed, and a folded portion 63b is formed between the rim portion 63a and the tab connecting portion 62. It is done.

[0073] The gasket 60 is bent outward from the front end of the rim portion 63a so that when the door 20 is closed, In this state, an outer door contact portion 68 is included which is in close contact with the rear surface of the door 20 on the outside of the insertion opening 12h. The casing joint 61 has the groove 64 at the portion extending from the outer end of the outer door seal 68. 61r is formed.

[0074] The gasket 60 is bent inward from the front end of the rim portion 63a, and when the door 20 is closed, In this state, the door 20 is tightly fitted to the rear surface (preferably the window 22) of the door 20 inside the insertion opening 12h. It further includes an inner door seal 66 that is attached to the door.

[0075] On the other hand, the drum 32 vibrates during the rotation process (i.e., the rotation center line C of the drum 32 As a result, the center line of the tab 31 (almost the same as the rotation center line C of the drum 32) also changes. The direction of this movement (hereinafter referred to as the "eccentric direction") has a radial component.

[0076] The folding portion 63b folds or unfolds when the tab 30 moves in the eccentric direction. The folded portion 63b is an inner diameter portion 631 bent from the rim portion 63a toward the casing joint portion 61. and an outer diameter portion bent from the inner diameter portion 631 toward the tab connecting portion 62 and connected to the tab connecting portion 62. When viewed from the front, the inner diameter portion 631 is located inside the outer diameter portion 632. As shown in FIG. 16, the rim portion 63a and the folding portion 63b have a substantially "S"-shaped cross section. To do.

[0077] When the center of the tab 31 moves in the eccentric direction, a part of the folding portion 63b is folded. When this occurs, the distance between the inner diameter portion 631 and the outer diameter portion 632 at that portion is reduced. On the opposite side of the folded portion, the folded portion 63b expands to form the inner diameter portion 631. and outer diameter portion 632 becomes wider.

[0078] The rim portion 63a may be provided with a water nozzle 42 and a steam injection nozzle 47. 2, the rim portion 620 has a direct water nozzle port 621 in which the direct water nozzle 42 is installed. and a steam injection nozzle port 622 in which the steam injection nozzle 47 is installed is disposed. The direct water nozzle port 621 and the steam injection nozzle port 820 are integrated with the gasket 60. It may be manufactured.

[0079] When viewed from the front, the left and / or right sides of the outer diameter portion 632 are provided with a plurality of port insertion tubes. 641, 642, 643, and 644 are arranged. Specifically, when viewed from the front, The first region (for example, the reference line ( L)) and are arranged vertically in the left region of the first and second port insertion tubes 641, 64 2 are provided, and are arranged vertically in the second region (for example, the region to the right of the reference line (L)), and are Third and fourth port insertion tubes 643 and 644 are provided parallel to each other.

[0080] The port insertion tubes 641, 642, 643, and 644 protrude outward from the outer diameter portion 632. In an embodiment, the port insertion tubes 641, 642, 643, and 644 are Two (641, 642) are located on the left side, and two (643, 644) are located on the right side. For this purpose, these are respectively designated as a first port insertion tube 641, a second port insertion tube 642, and a third port insertion tube 643. They are called the first port insertion tube 643 and the fourth port insertion tube 644 .

[0081] Referring to FIG. 8, a plurality of nozzles 650 are arranged on the inner circumferential surface of the gasket 60 . Preferably, the nozzle 650 is disposed on the inner circumferential surface of the outer diameter portion 632. Four nozzles 650a, 650b, 650c, corresponding to 41, 642, 643, 644, 650d (see FIG. 17). 3, 644 communicate with the corresponding nozzles 650a, 650b, 650c, 650d. That is, the hollows formed in the port insertion tubes 641, 642, 643, and 644 are nozzles 650. a, 650b, 650c, and 650d.

[0082] The second port insertion tube 642 is disposed below the first port insertion tube 641. The insertion tube 641 and the second port insertion tube 642 are arranged parallel to each other. The first port 41 and the second port insertion tube 642 extend in the horizontal direction (or in the left-right direction). The hollows formed in the insertion tube 641 and the second port insertion tube 642 are also extended horizontally. It becomes parallel to the

[0083] Referring to FIG. 10, the length of the second port insertion tube 642 is longer than that of the first port insertion tube 641. The first port insertion tube 641 is inserted at a mid-height point of the gasket body 63 (preferably Or, the height point where the center (O) is located) is located above by the first distance (d1). .

[0084] The second port insertion pipe 642 is located at a second distance from the mid-height point (O) of the gasket body 63. The second distance (d2) is shorter than the first distance (d1). I(d2 <d1)。

[0085] Since the outer shape of the gasket body 63 is nearly circular, any point on the outer diameter portion 632 The closer the point is to the upper or lower side of the intermediate height point (O), the closer the point is to the symmetrical reference line ( L). Therefore, in this embodiment, the second port insertion The point where the tube 642 is connected to the outer diameter portion 632 is the point where the first port insertion tube 641 is connected to the outer diameter portion 632. Since the point where the symmetrical reference line (L) is farther away than the point where the 2nd port is inserted, 642 is a shape that protrudes further to the right side from the symmetry reference line (L). By making the length of the insertion tube 642 relatively short, the gasket body 63 and the cabinet It is preferable to secure a space between the fourth port 11 and the second port 12 so that the distribution pipe 70 can be installed. The length of the port insertion tube 645 is also shorter than that of the second port insertion tube 643 .

[0086] The fourth port insertion tube 644 is disposed below the third port insertion tube 643. The insertion tube 643 and the fourth port insertion tube 644 can be arranged parallel to each other. The third port 43 and the fourth port insertion tube 644 extend in the horizontal direction (or in the left-right direction). The hollows formed in the insertion tube 643 and the fourth port insertion tube 644 are also extended horizontally. It becomes parallel to the

[0087] Referring to FIG. 9, the cleaning agent accumulated inside the gasket 60 is disposed at the bottom of the outer diameter portion 632. A residual water port 645 is provided for draining rinse water. The residual water port 645 is located on the outer diameter portion 63. The remaining water flows through the remaining water port 645 and accumulates in the folded portion 63b. The wasted washing water will be drained.

[0088] On the other hand, the gasket 60 may be formed using an injection molding machine 800. Referring to FIG. 13, the molding machine 800 has a fixed mold 850 and a movable mold 850. The movable molds 810, 820, 830, and 840 are included. 30, 840 are a first moving mold 810, a second moving mold 820, a third moving mold 830, and Includes 4 moving molds 840.

[0089] A fixed mold 850, a first moving mold 810, a second moving mold 820, a third moving mold 830, and The cavity formed by the fourth moving mold 840 is filled with an injection mold (not shown). Molten synthetic resin is injected from the mold.

[0090] The fixed mold 850 is disposed in the center, and the first, second, third, and fourth movable molds 810, 820 are disposed in the center. , 830, 840 may be arranged around a fixed mold 850. When the mold is opened, the fixed mold 8 50, the first moving die 810 is moved forward (upward with reference to FIG. 13), and the second moving die The mold 820 is moved to the right, and the third movable mold 830 is moved backward (downward with reference to FIG. 13). Then, the fourth moving mold 840 is moved to the left.

[0091] The straight water nozzle port 621 and the steam injection nozzle port arranged on the top of the gasket 60 The port 622 is formed by the first moving mold 810. The straight water nozzle port 621 and the steel Since the injection nozzle port 622 is extended in the direction of movement of the first moving mold 810, the mold can be easily removed. is carried out smoothly.

[0092] The residual water port 645 arranged at the bottom of the gasket 60 is formed by the third moving mold 830. The residual water port 645 is extended in the direction of movement of the third moving mold 830, so that the mold can be removed. The work is carried out smoothly.

[0093] The first port insertion tube 641 and the second port insertion tube 64 are arranged on the left side of the gasket 60. 2 is molded by the fourth moving mold 840. The fourth moving mold 840 is moved to the left, and the The first port insertion tube 641 and the second port insertion tube 642 are in the same direction as the movement of the fourth moving die 840. direction (i.e., left side).

[0094] The first port insertion tube 641 and the second port insertion tube 642 are arranged parallel to each other. In other words, the direction in which the first port insertion tube 641 protrudes from the outer peripheral surface of the outer diameter portion 632 and the direction in which the second port insertion tube 641 protrudes from the outer peripheral surface of the outer diameter portion 632 are parallel to each other. The port insertion tubes 642 protrude from the outer peripheral surface of the outer diameter portion 632 in the same direction.

[0095] The third port insertion tube 643 and the fourth port insertion tube 64 are arranged on the right side of the gasket 60. 4 is formed by the second moving mold 820. The second moving mold 820 is moved to the right, and The three-port insertion tube 643 and the fourth-port insertion tube 644 are in the same direction as the second moving mold 820. It is formed by protruding in the direction (i.e., right side).

[0096] The third port insertion tube 643 and the fourth port insertion tube 644 are arranged parallel to each other. In other words, the direction in which the third port insertion tube 643 protrudes from the outer peripheral surface of the outer diameter portion 632 and the direction in which the fourth port insertion tube 643 protrudes from the outer peripheral surface of the outer diameter portion 632 are parallel to each other. The port insertion tubes 644 may protrude from the outer circumferential surface of the outer diameter portion 632 in the same direction.

[0097] A first moving mold 810, a second moving mold 820, a third moving mold 830 and a fourth moving mold 8 40 move in different directions (or the first moving mold 810 and the third moving mold 830 move in different directions). The second moving mold 820 and the fourth moving mold 840 move in opposite directions. Since the gasket 60 is movable, the upper, left, right and lower sides are provided with insertion tubes or pipes. A gate can be formed.

[0098] The gasket body 63 may have a symmetrical structure with respect to a symmetry reference line (L). The insertion tube 641 and the third port insertion tube 643 may be arranged at the same height. The tube 642 and the fourth port insertion tube 644 may be arranged at the same height. 41 and the third port insertion tube 643 are symmetrical, i.e., Similarly, the second port insertion tube 642 and the fourth port insertion tube 644 are also symmetrical. It may be of symmetrical construction.

[0099] On the other hand, referring to FIG. 7, the rim portion 63a gradually decreases in width (or length in the front-rear direction) toward the upper side. In this case, the width of the inner diameter portion 631 gradually increases, and accordingly, The outer diameter portion 632 is positioned gradually further rearward as it moves upward, as shown in FIG. , the third port insertion tube 643 is closer to the tab 31 than the fourth port insertion tube 644, Similarly, on the side, the first port insertion tube 641 is closer to the tab 31 than the second port insertion tube 642. do.

[0100] [nozzle] A plurality of nozzles 650a, 650b, and 650c for discharging circulating water into the drum 32 , 650d. The plurality of nozzles 650a, 650b, 650c, 650d are 1st port insertion tube 641, 2nd port insertion tube 642, 3rd port insertion tube 643, 4th port The first port insertion pipe 641 is connected to the second port insertion pipe 642, and the circulating water is The nozzle from which the fluid is supplied is called the first nozzle 650a, and is connected to the second port insertion pipe 642 to circulate the fluid. The nozzle through which water is supplied is called the second nozzle 650b, and is connected to the third port insertion pipe 643. The nozzle to which the circulating water is supplied is called the third nozzle 650c, and is connected to the fourth port insertion pipe. The receiving nozzle to which the circulating water is supplied is called a fourth nozzle 650d (see FIG. 17).

[0101] As described above, the plurality of port insertion tubes 641, 642, 643, and 644 are each The outlet ports 761, 762, 763, 764 are extended horizontally, and correspond to the outlet ports 761, 762, 763, 764, which will be described later. 4 also extend horizontally, and therefore, The supply or guide of circulating water by the pump is horizontal.

[0102] The nozzles 650a, 650b, 650c, and 650d are fed in a horizontal direction as described above. The circulating water may be discharged in a direction forming a predetermined angle with respect to the horizontal. That is, each of the discharge ports 761, 762, 763, 764 / port insertion tubes 641, 642 , 643, 644, the circulating water is supplied horizontally through the nozzles 650a, 650 The discharge direction by b, 650c, and 650d is upward or downward at a predetermined angle to the horizontal. do.

[0103] Figure 17 shows the assembly of the gasket and distribution pipe, and in particular the nozzle position and nozzle Referring to FIG. 17, as mentioned above, the gasket 60 has Four nozzles 650 are provided. The upper two of the four nozzles 650 are The nozzles 650a and 650c are referred to as upper nozzles 650a and 650c, respectively. Again, when viewed from the front, the nozzle located on the left side is called the first upper nozzle 650a, and the nozzle located on the right side is called the second upper nozzle 650b. The nozzle placed therebetween is called a second upper nozzle 650c.

[0104] The upper nozzles 650a and 650c are located above the center (O) of the gasket 60. The center (O) is on the left-right symmetrical reference line (L) of the gasket 60. , preferably at half the height (H) of the gasket 60. However, it is not necessarily limited to this.

[0105] When viewed from the front, the first upper nozzle 650a is disposed in the left region of the reference line (L). , the circulating water is sprayed downward in the area to the right of the reference line (L). When viewed from the front, the second upper nozzle The loop 650c is disposed in the right region of the reference line (L) and flows downward to the left region of the reference line (L). Spray water into the area.

[0106] The first upper nozzle 650a and the second upper nozzle 650c are arranged left and right with respect to the reference line (L). Therefore, the first upper nozzle 650a and the second upper nozzle 650c are The shape of the jet of water is also symmetrical with respect to the reference line (L).

[0107] In addition, the two nozzles located below the upper nozzles 650a and 650c are called lower nozzles 6 50b, 650d, and when looking at these from the front again, the one on the left is the first lower The one located on the right side is called a second lower nozzle 650d.

[0108] When viewed from the front, the first lower nozzle 650b is disposed in the left region of the reference line (L). Circulating water is sprayed upward into the area to the right of the reference line (L).

[0109] When viewed from the front, the second lower nozzle 650d is disposed in the right region of the reference line (L). Circulating water is sprayed upward into the area to the left of the reference line (L).

[0110] The first lower nozzle 650b and the second lower nozzle 650d are arranged left and right with respect to the reference line (L). Therefore, the first lower nozzle 650b and the second lower nozzle 650d are The shape of the jet of water is also symmetrical with respect to the reference line (L).

[0111] 10, 11 and 14, the nozzle 650a is a gasket of the gasket 60. The nozzle 6 is formed in the nozzle body 63 and preferably protrudes from the inner circumferential surface of the outer diameter portion 632. 50a includes a nozzle inlet pipe 651 and a nozzle head 652. 51 has a tubular shape and protrudes from the inner circumferential surface of the outer diameter portion 632 to form a corresponding nozzle head 6 It is connected to 52.

[0112] 10, 15 to 17, the nozzle head 652 includes a discharge port 64 The collision surface 652a on which the water discharged from the nozzle 1 collides, and the first nozzles 652a located on both sides of the collision surface 652a. The impact surface 652a includes a first side surface 652b and a second side surface 652c. The funnel-shaped space is formed by the nozzle inlet pipe 652c, and the water discharged from the nozzle inlet pipe 651 flows into the space. After colliding with the collision surface 652 a within the gap, the particles are ejected from the ejection port 657 .

[0113] The first side surface 652b and the second side surface 652c are respectively formed on the left and right sides of the impact surface 652a. These are extended to define the left and right boundaries of the water flowing along the collision surface 652a.

[0114] The angle (γ) between the first side surface 652b and the second side surface 652c is approximately 45 to 55 degrees. and is preferably 50 degrees, but is not necessarily limited to this.

[0115] When the jet width of the water jetted through the nozzle 650 is defined as the jet width angle, The spray width angle can be determined by the first side surface 652b and the second side surface 652c. The spray width angle is determined by the angle between the first boundary where the collision surface 652a and the first side surface 652b meet and the boundary between the collision surface 652a and the first side surface 652b. and the second side 652c meet.

[0116] Referring to FIG. 17, the spray width angle (β1) of the upper nozzles 650a and 650c is The injection width angle (β2) of nozzles 650b and 650d is smaller than that of the inlet port 73. As the circulating water ascends along the distribution pipe 701, a portion of it is sprayed out through the lower nozzles 650b and 650d. The remaining part is injected through the upper nozzles 650a and 650c. The discharge flow rate through the lower nozzles 650a and 650c is higher than the discharge flow rate through the lower nozzles 650b and 650d. Therefore, the spray width of the upper nozzles 650a and 650c is set to be smaller than that of the lower nozzles 650b and 650c. By making the jet width smaller than that of the upper nozzles 650a and 650c (β1<β2), The water pressure is relatively compensated and is carried out from all nozzles 650a, 650b, 650c, and 650d. Water can be discharged with a qualitatively uniform water pressure.

[0117] The spray width angle (β2) of the lower nozzles 650b and 650d and the spray width angle (β3) of the upper nozzles 650a and 650 The difference (β2-β1) between the injection width angle (β1) of c is approximately 4 to 6 degrees, and preferably , 5 degrees. In this case, β1 is about 38 degrees to 42 degrees, and preferably 40 degrees. and β2 is approximately 43 to 47 degrees, preferably 45 degrees.

[0118] On the other hand, the spray direction of the upper nozzles 650a and 650c is A line (R) (hereinafter referred to as the "nozzle arrangement line") connecting the center (O) of the gasket 650a .) and form an upward deflection angle (Φ). Here, the upper nozzles 650a, 650 The injection direction (DR) of c is a straight line that equally divides the angle formed by the first side surface 652b and the second side surface 652c. The jet direction (DR) is defined as upward from the nozzle arrangement line (R). The angle (Φ) may be between 5 and 9 degrees, and is preferably 7 degrees.

[0119] Various conditions such as the height, position, and spray width angle (β1) of the upper nozzles 650a and 650c In some cases, this may result in sufficient water pressure being sprayed through the upper nozzles 650a and 650c. If there are scratches, the jetted water may not travel far in a straight line. The spray direction of nozzles 650a and 650c is adjusted upward by the deviation angle (Φ) from the nozzle arrangement line (R). By making the nozzles 650a and 650c move upward, the water pressure in the upper nozzles 650a and 650c is not sufficient. Even in this case, the water flow should reach the area where the nozzle arrangement line (R) passes, and preferably, Thus, the shape of the water flow injected through the upper nozzles 650a and 650c and the shape of the water flow injected through the lower nozzle 65 0b, 650c, the shape of the water flow injected can be made substantially symmetrical. Cut.

[0120] On the other hand, the angle from the lowest point of the gasket 60 to the lower nozzles 650b and 650d is α1 Then, the upper nozzles 650a and 650c are positioned at an angle α1 to the gasket 6 It is located between the highest point (H) of 0 and above the point corresponding to the angle obtained by dividing 180-α1 equally. That is, in FIG. 17, α2 has a value larger than α3. α2-α3 is It may be 18 to 22 degrees, and preferably 20 degrees. In this case, α2 is 63 The angle may be between 65 and 67 degrees, and is preferably 65 degrees.

[0121] On the other hand, the lower nozzles 650b and 650d are positioned at approximately 1 / 3 of the height (H) of the gasket 60 ( In this case, α2 is located at the upper nozzle 650a, 650c of the gasket 6 It is preferable that the height is set in the range above 2 / 3 (2 / 3H) of the normal height. In this case, α2 may be 65 degrees.

[0122] In order for the circulating water to be sprayed uniformly from top to bottom in the drum 32, the upper nozzle 650 It is preferable that the lower nozzles 650a, 650c and the lower nozzles 650b, 650d are arranged at equal intervals in the height direction. However, in this case, the water droplets are ejected from the upper nozzles 650a and 650c due to the dripping of the jet of water caused by gravity. The problem is that the water jet actually reaches a lower area than predicted geometrically. Therefore, taking into consideration the water flow caused by gravity, the upper nozzles 650a and 6 50c should be placed above 2 / 3H.

[0123] Meanwhile, the pump 901 is operated to spray circulating water through the lower nozzles 650b and 650d. When the water level in the tub 31 is lowered, it is preferable that the water level in the tub 31 does not exceed the 1 / 3H point.

[0124] On the other hand, referring to FIG. 10, when viewed from the front, the jetting direction (DR 1) is the longitudinal direction of the first port insertion pipe 641 (or the direction in which water flows into the first nozzle 650a). The angle a can be 13 3 degrees to 138 degrees.

[0125] The first nozzle 650a and the third nozzle 650c are arranged symmetrically. The angle formed between the jetting direction (DR3) of the nozzle 650c and the third port insertion pipe 643 is also a.

[0126] When viewed from the front, the jetting direction (DR2) of the second nozzle 650b is The direction of the length of the insertion pipe 642 (or the direction in which water flows into the second nozzle 650b, i.e., the direction of the inlet The angle b can be between 109 and 111 degrees. is.

[0127] The second nozzle 650b and the fourth nozzle 650d are arranged symmetrically. The angle formed by the jetting direction (DR4) of the nozzle 650d and the fourth port insertion tube 644 is also b.

[0128] The structure of the nozzle 650 will be described in more detail below with reference to Figures 14 to 16. In these drawings, the first nozzle 650a is representatively shown, but the second nozzle 650b, The third nozzle 650c and the fourth nozzle 650d have substantially the same structure as the first nozzle 650a. Therefore, the contents regarding the first nozzle 650a described below are the same as those regarding the second to fourth nozzles. Also applicable to Zulu 650b, 650c, and 650d.

[0129] The collision surface 652a, the first side surface 652b, and the second side surface 652c of the nozzle head 652 The nozzle head 652 has an impact surface 652a extending to an outlet 657 (i.e., a jet nozzle). The nozzle inlet pipe 651 is opposed to the outlet 651b of the nozzle inlet pipe 651 and is formed inclined in the depth direction of the drum 32. do.

[0130] The nozzle inlet pipe 651 extends horizontally to guide the water in a horizontal direction, so that the water flow The balls move steadily up to the head 652 without being affected by gravity, and then are struck by the collision surface 652a. Since the water is diffused, the water flows in a uniform pattern from each of the nozzles 650a, 650b, 650c, and 650d. is sprayed.

[0131] If the longitudinal direction of the nozzle inlet pipe 651 is not arranged substantially horizontally, the center of the gasket 60 When the nozzle inlet pipe 651 of the upper nozzles 650a and 650c is positioned facing the (O) As the water flows downward, gravity acts on it and it flows faster than the lower nozzles 650b and 650d. The mixture is injected into the drum 32 and flows through the nozzle inlet pipes 651 of the lower nozzles 650b and 650d. The water flows upwards and is slower than the upper nozzles 650a and 650c due to gravity. 32, the water is sprayed from a plurality of nozzles 650a, 650b, 650c, and 650d. It is difficult to maintain a constant injection pattern of the water injected into the ram 32. The nozzle inlet pipe 651 is arranged approximately horizontally in the longitudinal direction thereof to guide the water in a horizontal direction. Therefore, the liquid is sprayed into the drum 32 from a plurality of nozzles 650a, 650b, 650c, and 650d. The key is to maintain a constant water injection state.

[0132] Referring to FIG. 14, the area of the inlet 651a of the nozzle inlet pipe 651 is 1 / 2 the area of the outlet 651b. The circulating water discharged from the outlet 651b is passed through the nozzle head 6 After hitting the collision surface 652a of the drum 52, the particles are injected into the drum 32 through the injection port 657. The direction of the injection port 657 and the longitudinal direction of the nozzle inlet pipe 651 intersect with each other.

[0133] The gasket 60 has a protruding portion 655 protruding from the inner circumferential surface of the gasket body 63. A plurality of protrusions 650a, 650b, 650c, and 650d are provided corresponding to the plurality of nozzles 650a, 650b, 650c, and 650d. 55 are formed along the circumferential direction. The nozzles 657 may be formed in corresponding protrusions 655 (see FIG. 10).

[0134] The nozzle inlet pipe 651 has a flow path narrowing section 651 in which the inner diameter gradually decreases in the direction of the water flow. The inner diameter of the narrowed flow passage portion 651c gradually decreases until it reaches the nozzle head 652. .

[0135] On the other hand, the distribution pipe 701 has at least a portion that is in contact with the outer circumferential surface of the gasket 60 and the balancer 81. , 82. There is no need to secure a separate space for installing the distribution pipe 701. It is installed in the existing space (i.e., between the outer surface of the gasket 60 and the balancers 81 and 82). It can be done.

[0136] The pair of upper nozzles 650a and 650c are formed above the inlet port 73. The pair of upper nozzles 650a, 650b may be arranged on both the left and right sides of the port 73. 50c are arranged symmetrically with respect to a reference line (V) passing through the center (O) (see FIG. 10), and therefore Therefore, the spray directions of the upper nozzles 650a and 650d are symmetrical with respect to the reference line (L). is.

[0137] The pair of upper nozzles 650a, 650d are positioned at the center (O) or the center (C) of the drum 32. The upper nozzles 650a and 650d are located on the upper side. Therefore, when the drum 32 is viewed from the front, the circulating water flows through the drum 32 at the inlet side. The flow passes through the upper area of the drum 32 from the center (C) and slopes downward as it goes deeper into the drum 32. It is sprayed in this form.

[0138] The pair of lower nozzles 650b, 650c are located above the inlet port 73, or The pair of lower nozzles 650b, 650d are arranged below the upper nozzles 650a, 650d. 50c may be disposed on both the left and right sides of the inlet port 71h, and preferably, The nozzles 650b and 650c are arranged symmetrically with respect to the reference line (L). It is symmetrical with respect to the reference line (L).

[0139] The pair of lower nozzles 650b, 650c are located at the center (O) or below the center of the drum 32. Each of the lower nozzles 650b and 650c sprays circulating water upward. Therefore, when the drum 32 is viewed from the front, the circulating water is 2 below the center (C) of the drum 32 and inclines upward as it goes deeper into the drum 32. It is sprayed in this state.

[0140] Taking the first nozzle 650a as an example, one end of the nozzle inlet pipe 651 is connected to the first port insertion pipe 652. 641, and the other end is open to the inside of the tub 31. The cross-sectional area of the nozzle inlet pipe 651 is narrower at one end than at the other end. will be done.

[0141] The nozzle head 652 interferes with the jetted circulating water and changes the jet direction of the circulating water. The nozzle head 652 sprays circulating water onto the rear inside of the tub 32.

[0142] The other end 653 of the nozzle head 652 is separated from the discharge side (other end) of the nozzle inlet pipe 651. The nozzle head 652 is spaced apart from the other end of the nozzle inlet pipe 651. The nozzle head 652 is arranged so as to hide the inlet pipe 651. The circulating water hits the inner surface of the nozzle head 652. The other end 653 of the nozzle head 652 faces the rear of the tab 31. It is arranged like this.

[0143] The circulating water discharged to the nozzle inlet pipe outlet 651c is After hitting the collision surface 652a, the particles are ejected into the inside of the tub 31 through the ejection port 657. The direction in which the injection port 657 faces and the direction in which the nozzle inlet pipe 651 extends intersect with each other.

[0144] The distribution pipe 701 has an inlet port 73 connected to the circulation pipe 18 and a a transfer pipe 74 for guiding the water that flows in, and a plurality of discharge ports 7 protruding from the transfer pipe 74. Includes 61, 762, 763, 764, and 72e.

[0145] The distribution pipe 701 may be made of a synthetic resin that is harder or more rigid than the gasket 60 . The distribution pipe 701 maintains a constant shape despite vibrations that occur during the operation of the washing machine. In particular, the flexible gasket 60 is deformed in response to the vibration of the tab 31. In comparison, the distribution pipe 701 is relatively close to a rigid body. The same applies to the two distribution pipes 702 and 703.

[0146] The distribution pipe 701 branches the circulating water discharged from the circulation pipe 18 into a first partial flow FL1 (see FIG. 13) and forms a second partial flow FL2 (see FIG. 13). At least one discharge port 762, 763 is provided on the first flow path through which the first partial flow FL1 is guided. and corresponding nozzles 650b, 650c through corresponding discharge ports 762, 763. Similarly, the circulating water is discharged to the second flow path through which the second partial flow FL2 is guided. One discharge port 764, 72e is formed, and the air flows through the corresponding discharge port 764, 72e. The transfer pipe 74 forms the first flow path. and a second pipe line portion 76 that forms the second flow path.

[0147] One end of the first pipe line portion 75 and one end of the second pipe line portion 76 are connected to each other. The inlet port 73 protrudes from the connected portion. The end of the second pipeline portion 76 and the other end of the second pipeline portion 76 are separated from each other. The "Y" shape allows circulating water to enter through one inlet (i.e., inlet port 73). The structure is such that the flow is branched into two flow paths and guided.

[0148] The nozzles 650a, 650b, 650c, and 650d are arranged in accordance with their height above the gasket 60. The nozzles are divided into upper nozzles 650a and 650d and lower nozzles 650b and 650c. In this embodiment, four nozzles 650a, 650b, 650c, and 650d are provided. These are a first lower nozzle 650b and a second lower nozzle 650c arranged at the bottom of the gasket 60. 0c, the first upper nozzle 650a and the second upper nozzle 650b, which are arranged above the lower nozzles 650c, 2 upper nozzles 650d.

[0149] Discharge ports 761, 762, 763, and 764 are nozzles 650a, 650b, and 650c , 650d, and the discharge ports 761, 762, 763, 764 supplies circulating water to the corresponding nozzles 650a, 650b, 650c, 650d.

[0150] The discharge ports 761, 762, 763, and 764 supply circulating water to the first upper nozzle 650a. a first upper outlet port 762 for supplying circulating water to the second upper nozzle 650d; the first lower discharge port 72e, which supplies circulating water to the first lower nozzle 650b; 63, including a second lower discharge port 764 that supplies circulating water to the second lower nozzle 650c.

[0151] The transfer line 74 is disposed around the outer periphery of the gasket 60 and is connected to the port through the circulation line 18. The discharge ports 761, 762, 763, and 764 are connected to the pump 901. , protruding radially inward from the transfer line 74 and inserted into the gasket 60. Circulating water is supplied to nozzles 650a, 650b, 650c, and 650d.

[0152] The distribution pipe 701 extends from the transfer pipe 74 and has an inlet port 73 connected to the circulation pipe 18. The inlet port 73 projects radially outward from the transfer line 74.

[0153] Referring to FIG. 11, the first pipe section 75 includes a first section 751 to a fourth section 754. The second pipe line portion 76 is symmetrical to the first pipe line portion 75, and its configuration is substantially the same as that of the second pipe line portion 75. Since the first pipe line portion 75 is the same as the second pipe line portion 76, the following description of the first pipe line portion 75 also applies to the second pipe line portion 76. Applicable.

[0154] The first section 751 extends from the inlet port 73. The first section 751 has a predetermined curvature. The first section 75 is an extended arc-shaped section. 1 is a curved shape having an approximately constant curvature, but is not limited to this. The curve may have a shape in which two or more curves having different curvatures are connected by the curve.

[0155] The second section 752 is continuous with the first section 751 but extends outward from the first section 751. In other words, the second section 752 is formed on the outer side at the upper end of the first section 751. (i.e., away from the center (O)) and then extended by a distance L2. The length (L2) of the second section 752 is shorter than the length (L1) of the first section 751. They are all short.

[0156] The third section 753 is inward from the second section 752 (i.e., in a direction closer to the center (O)). ) and then further extended by a distance L3. The lower discharge port 762 extends substantially vertically upward from the second section 752. 53 and extends in a horizontal direction (or in a direction perpendicular to the second section 752).

[0157] In the third section 753, the surface 750b from which the lower discharge port 762 protrudes is formed flat. The surface 750b may extend vertically. The surface 750b may extend at least partially vertically. The end of the second port insertion tube 642 is in contact with the outer surface of the gasket body 63. is in close contact with surface 750b.

[0158] The fourth section 754 is inward from the third section 753 (i.e., in a direction closer to the center (O)). ), and then further extended by a distance L4 to the end of the first pipe line portion 75. The upper discharge port 761 is formed in the fourth section 754, and preferably in the embodiment The fourth section 754 is formed at the end of the fourth section 754 as a curve having a predetermined curvature. and can extend in a direction intersecting the length of the upper discharge port 761.

[0159] At the end of the first pipe section 75 (or the end of the fourth section 754), the upper discharge port 7 The protruding surface 750a of the 61 may be formed flat. The surface 750a extends vertically. In this case, the surface 750b and the surface 750a are parallel to each other. At least a portion of the surface 750b is in close contact with the end of the first port insertion tube 641. It is tightly fitted to the end of the second port insertion tube 642 .

[0160] Meanwhile, since the fourth section 754 is bent inward from the third section 753, When viewed from the side, the surface 750a on which the upper discharge port 761 is formed is the surface on which the lower discharge port 762 is formed. It is located closer to the symmetry reference line (L) than the formed surface 750b. Surface 50a is closer to the outer surface of gasket body 63 than surface 750b.

[0161] When viewed from the front, the end of the first discharge port 761 is aligned with the end of the second discharge port 762. It is located at a point closer to the symmetry reference line (L) by a distance (S) from the part.

[0162] 11 and 12, the first port 761 is connected to the first discharge port 762. A port connecting portion 757 is formed, and a second port connecting portion is formed at the portion connected to the second discharge port 762. A portion 758 is formed.

[0163] Similarly, the second pipe section 760 has a third port 763 connected to the third discharge port 764. A connecting portion 767 is formed, and the portion connected to the fourth discharge port 764 is called the fourth port connecting portion 767. 68 is formed.

[0164] Each of the port connections 757, 758, 767, and 768 is provided on the side as shown in FIG. When viewed from the front, the port connecting portions 757 and 755 are formed in a convex shape forward compared to the peripheral portions. The width (P) of the pipes 8, 767, and 768 is greater than the width (W) of the peripheral portion. The portions 75 and 76 extend from the inlet port 73 to a certain width (W) and then connect to the port connecting portion 758. After protruding forward at the On the other hand, the width (P) of the port connecting portions 757, 758, 767, and 768 is is larger than the diameter (t).

[0165] Referring to Figures 14 to 16, each of the discharge ports 761, 762, 763, A ring-shaped press-fit protrusion 769 is formed on the outer circumferential surface of the press-fit 764 and extends in the circumferential direction. A plurality of protrusions 769 are arranged along the length of the discharge ports 761, 762, 763, and 764. The press-fit protrusion 769 has a wedge-shaped cross section. When the port insertion tube 641 is inserted, the press-fitting projection 769 is inserted into the port insertion tube 641, 642, 643. , 644, the inner peripheral surface of the nut 642 is pressed against the nut 642, and the bonding force is increased.

[0166] When the direction in which the discharge port 761 is inserted into the port insertion pipe 641 is defined as the first direction, The press-fit protrusion 769 has a vertical surface and a height that gradually decreases as it moves from the vertical surface to the first direction. The discharge port 761 is inserted into the port insertion tube 641. When the press-fitting is completed, the inclined surface makes it easier to press-fit the material, and after the press-fitting is completed, the vertical surface makes it easier to eject the material. The outlet port 761 is less likely to come out of the port insertion tube 641. ) can be used to connect the distribution pipe 701 to the gasket 60, so that the binding member can be tightened. No work time is required to complete the process.

[0167] On the other hand, when the discharge ports are inserted into the port insertion tubes 641, 642, 643, and 644, The ends of 761, 762, 763, and 764 can reach the nozzle inlet pipe 651. At this time, the inner circumferential surfaces of the discharge ports 761, 762, 763, and 764 and the inner circumferential surface of the nozzle inlet pipe 651 The surface reduces the resistance of the circulating water by forming a substantially continuous surface. 1 has a tubular shape and protrudes from the inner peripheral surface of the outer diameter portion 632, and a corresponding nozzle head 65 It is connected to 2.

[0168] Fig. 18 is a perspective view showing a pump according to another embodiment of the present invention. 1 is a diagram showing the distribution view according to another embodiment of the present invention. Two distribution pipes 702 and 703 are installed at the reference line 701. Based on (L), a first distribution pipe 702 is arranged on one side and a second distribution pipe 703 is arranged on the other side. Includes:

[0169] A pump 902 is provided to supply circulating water to the two distribution pipes 702, 703. The pump 902 includes two circulation ports 912a, 912b, and although not shown, Circulation pipes connect circulation ports 912a, 912b to distribution pipes 702, 703, respectively.

[0170] More specifically, the pump 902 includes a pump housing 91 and a and a pump motor that provides a rotational force to rotate the impeller 915. Includes 92.

[0171] The pump housing 91 defines a chamber in which the impeller 915 is housed. The housing 91 is connected to a drain bellows 17 to guide the circulating water into the chamber. An inlet port 911 and a first circulation port 912 that discharges water pumped by an impeller 915. a and a second circulation port 912b.

[0172] The water flow generated by the rotation of the impeller 915 by the pump motor 92 flows through the first circulation port The liquid is discharged simultaneously through the first circulation port 912a and the second circulation port 912b. The water discharged through 912a flows through a first circulation pipe (not shown) to the first distribution pipe 702. The water supplied and discharged through the second circulation port 912b flows through a second circulation pipe (not shown). The refrigerant is supplied to the second distribution pipe 703 via the refrigerant supply pipe 704.

[0173] The first distribution pipe 912a supplies circulating water to the first nozzle 650a and the second nozzle 650b. The first distribution pipe 912a is connected to the first circulation port 912b by the first circulation pipe. a first inlet port 73a for guiding the circulating water that has flowed in through the first inlet port 73a; The first pipe section 75 includes two discharge ports 761 and 762 disposed on the first pipe section 75. nothing.

[0174] The two discharge ports 761 and 762 are respectively connected to the first port insertion pipe 641 and the second port insertion pipe. It can be inserted into immigration 642.

[0175] The second distribution pipe 703 supplies circulating water to the third nozzle 650c and the fourth nozzle 650d. The second distribution pipe 703 is connected to the second circulation port 912b by the second circulation pipe. an inlet port 73b and a second pipe for guiding the circulating water that has flowed in through the second inlet port 73b; The second conduit portion 76 includes a first conduit portion 76 and two discharge ports 763 and 764 disposed on the second conduit portion 76.

[0176] The two discharge ports 763 and 764 are respectively connected to the third port insertion tube 643 and the fourth port insertion tube 644. It will be inserted into immigration 644.

[0177] Meanwhile, the pump housing 91 further includes a drain port 913 connected to the drain pipe 19. As in the previous embodiment, the pump 901 receives circulating water through the inlet port 911. A chamber 916 is connected to the drain port 913 and rotated within the chamber 916. The pump further includes an impeller 917 and a second pump motor 93 that rotates the impeller 917 (hereinafter referred to as See Figures 5 and 6 above).

[0178] Although the embodiment of the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to the above embodiment. The present invention is not limited to the above-mentioned form and may be prepared in various different forms. A person having ordinary skill in the art would be able to change the technical idea or essential features of the present invention. It will be understood that the present invention may be embodied in other specific forms without modification. It should be understood that the above embodiments are illustrative in all respects and not restrictive. It should be.

Claims

1. A washing machine, a casing having an inlet formed in a front surface thereof; a tub provided within the casing for containing wash water and having a tub inlet formed on its front surface; a drum rotatably mounted within said tub; a gasket having a passageway connecting said input port to said tub inlet; the gasket has a first region and a second region corresponding to opposite side regions of the gasket; a first nozzle and a second nozzle disposed on an inner circumferential surface of the gasket; the second nozzle is disposed at a lower position than the first nozzle, a pump for circulating the wash water discharged from said tub; and a distribution pipe that stores the wash water discharged from the pump and supplies the stored wash water to the first nozzle and the second nozzle; The first nozzle is disposed at a position higher than an intermediate height point of the gasket corresponding to the center of the gasket, and sprays water downward on the drum. The second nozzle is disposed at a position lower than the intermediate height of the gasket and sprays water upward on the drum, The first nozzle ejects a first water stream having a first ejection width angle relative to the first nozzle, the second nozzle ejects a second water stream having a second ejection width angle relative to the second nozzle; The washing machine, wherein the second spray width angle is greater than the first spray width angle.

2. The washing machine according to claim 1, wherein the first nozzle and the second nozzle spray the washing water toward the second region of the gasket facing the first region of the gasket.

3. a third nozzle and a fourth nozzle disposed on the inner circumferential surface of the gasket; 2. The washing machine according to claim 1, wherein the fourth nozzle is positioned lower than the third nozzle in the second region of the gasket.

4. The washing machine according to claim 3, wherein the third nozzle and the fourth nozzle spray water toward the first region of the gasket.

5. The first nozzle sprays a first water stream in a first direction that is laterally symmetrical to the third water stream sprayed through the third nozzle, 5. The washing machine according to claim 4, wherein the second nozzle sprays a second water stream in a second direction that is laterally symmetrical to the fourth water stream sprayed through the fourth nozzle.

6. the first spray width angle is defined by a first side surface of the first nozzle and a second side surface of the first nozzle; the second spray width angle is defined by a first side of the second nozzle and a second side of the second nozzle; and 2. The washing machine according to claim 1, wherein the difference between the second spray width angle and the first spray width angle is 4 to 6 degrees.

7. 7. The washing machine according to claim 6, wherein the first spray width angle is between 38 degrees and 42 degrees.

8. The washing machine according to claim 1, wherein the first nozzle sprays the washing water in a direction higher than the center of the gasket.

9. The first nozzle sprays the wash water in a spray direction, the spray direction is defined by a straight line equally dividing an angle between a first side surface of the first nozzle and a second side surface of the first nozzle; 2. The washing machine according to claim 1, wherein the angle is defined as an upward deviation angle of the first nozzle with respect to a line extending from the first nozzle to the center of the gasket.

10. 10. The washing machine according to claim 9, wherein the deviation angle is between 5 degrees and 9 degrees.

11. the first nozzle is disposed at a high position between a position corresponding to the first angle and the highest point of the gasket; the first angle is defined as the angle from the lowest point of the gasket to the second nozzle; the high point is defined as a position corresponding to a second angle relative to the center of the gasket relative to the highest point of the gasket; the second angle is less than half the difference between 180 degrees and the first angle; The washing machine according to claim 1, wherein the first nozzle is disposed closer to the highest point of the gasket than the second nozzle.

12. 2. The washing machine of claim 1, wherein a first angle defined between the first nozzle and the second nozzle with respect to the center of the gasket is greater than a second angle defined between the highest point of the gasket and the first nozzle with respect to the center of the gasket.

13. 13. The washing machine according to claim 12, wherein the first angle is between 63 degrees and 67 degrees.

14. The washing machine according to claim 1, wherein the second nozzle is disposed in an area corresponding to one-third of the height of the gasket.

15. The washing machine according to claim 14, wherein the first nozzle is positioned higher than a point corresponding to two-thirds of the height of the gasket.

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