TW201610260A - Washing machine and washing machine manufacturing method - Google Patents

Abstract

In the washing machine of the present embodiment in which the side of a rotating tank provided rotatably inside a water tank is formed by caulking the two edges of a metal sheet, an anti-fouling coating with an anti-fouling function is applied at least on the portion of the outer surface of the side of said rotating tank that has been joined by caulking.

Description

Washing machine and washing machine manufacturing method

Embodiments of the present invention relate to a washing machine and a method of manufacturing the same.

Conventionally, it has been conceivable to provide various functional films in the water tank of a washing machine. For example, Patent Document 1 discloses that it is necessary to reduce the power consumption during drying, and to provide a film of a heat-insulating paint on the inner surface of the water tank. Further, Patent Document 1 discloses that by allowing a hydrophilic hollow bead to be contained in a film of a water-repellent heat-insulating paint, the water film adhering to the surface of the film is expanded and evaporated, thereby drying Further power consumption is reduced.

However, in recent years, a paint having an antifouling function such as hydrophilicity and water repellency has been developed, and if such a paint is applied to the inner surface of a water tank of a washing machine, the inside of the water tank can be cleanly maintained by its antifouling function. surface. However, the inner surface of the water tank is in contact with the water accumulated in the water tank during the washing operation or the washing operation, and the water scattered from the inner rotating groove during the dehydrating operation is also in contact. Therefore, even if the inner surface of the water tank is not suitable for the paint having such antifouling function, it can be relatively cleanly maintained, so even in the sink The inner surface maintains the antifouling function and cannot effectively use its function.

[Advanced technical literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2010-172436

In the present embodiment, a washing machine capable of applying an antifouling function to a portion that can be effectively utilized and a method of manufacturing a washing machine for manufacturing the same are provided.

In the washing machine of the present embodiment, the washing machine is formed by caulking and joining the both end portions of the metal plate material to the side of the rotating groove that is rotatably provided in the water tank, and is in the outer surface of the side portion of the rotating groove. The antifouling coating having an antifouling function is applied to at least the portion joined by riveting.

The method for manufacturing a washing machine according to the present embodiment is a method of manufacturing a washing machine that forms a side portion of a rotating groove that is rotatably provided in a water tank by caulking and joining both end portions of a metal plate material, and caulking the plate material Before or after the joining of the both end portions, a coating work for the antifouling coating having an antifouling function is formed on at least the portion joined by the caulking in the outer surface of the side portion of the rotating groove.

117‧‧‧Operator panel

104‧‧‧Rotating slot

115‧‧‧ cover

100‧‧‧Washing machine

114‧‧‧ top cover

102a‧‧‧Slot cover

150b‧‧‧ Protrusion

101‧‧‧Outer box

106a‧‧‧screw

102‧‧‧Sink

300‧‧‧Antifouling paint

103‧‧‧Elastic hanging mechanism

106‧‧‧balance ring

104a‧‧‧胴component

104b‧‧‧ bottom member

104c‧‧‧ reinforcing members

105a‧‧ hole

107a‧‧‧ pump blades

119a‧‧‧ sprinkler

119‧‧‧Waterway

120‧‧‧Fungicide unit

107‧‧‧Agitator

113b‧‧‧Washing shaft

113a‧‧‧Drain shaft

113‧‧‧Drive Department

118‧‧‧ pump room

109‧‧‧Drain valve

108‧‧‧Drainage path

111‧‧‧ trachea

110‧‧‧ gas trap

206‧‧‧Operator panel

207‧‧‧Control device

200‧‧‧Washing machine

201‧‧‧Outer box

235‧‧‧Connecting tube

233‧‧‧Water supply valve

231‧‧‧Water level sensor

223‧‧‧ bellows

236‧‧‧In-machine water supply hose

208‧‧‧Sink

232‧‧‧ trachea

204‧‧‧Washing entrances and exits

219‧‧ ‧ partition

217‧‧‧ reinforcing members

205‧‧‧ door leaf

218‧‧‧ hole

210‧‧‧Motor

214‧‧‧ bearing bracket

215‧‧‧ bearing

213‧‧‧Rotary axis

212‧‧‧Rotor

221‧‧‧ openings

220‧‧‧ openings

222‧‧‧balance ring

216‧‧‧Roller

224‧‧ ‧ drain

203‧‧‧ box body

227‧‧‧ cover

226‧‧‧Filter box

230‧‧‧ gas trap

228‧‧‧Drain valve

229‧‧‧Drainage pipe

209‧‧‧suspension device

225‧‧‧In-machine drainage hose

234‧‧‧Water supply container

202‧‧‧Abutment

S‧‧‧base material

401‧‧‧ feeder

402‧‧‧Cutting machine

Sa‧‧‧ plates

Ra‧‧‧ joint

Rc‧‧‧Processing Department

Rb‧‧‧ joint

Rd‧‧‧Processing Department

501‧‧‧Bending machine

Yb‧‧‧ arrow print

Ya‧‧‧ arrow print

104S‧‧‧ Intermediate

104Sa‧‧‧balance ring installation

104Sb‧‧‧Bottom component installation

216S‧‧‧ Intermediate

E‧‧‧ arrow print

216H‧‧‧ back panel

601‧‧‧ Turntable

Fig. 1 is a longitudinal sectional side view schematically showing a structural example of a vertical axis type washing machine of the embodiment.

FIG. 2 is a longitudinal cross-sectional view schematically showing a structural example of the drum type washing machine of the embodiment.

FIG. 3 is a view schematically showing an example of a press working process.

FIG. 4 is a view schematically showing an example of a hole forming process and a protrusion forming process.

FIG. 5 is a view schematically showing an example of a joint portion and a formed portion that are set in a sheet material.

Fig. 6 is a view schematically showing an example of a bending process.

FIG. 7 is a perspective view schematically showing an example of an intermediate body of a rotary groove obtained by a joining process.

Fig. 8 is a cross-sectional view schematically showing a rivet portion.

Fig. 9 is a longitudinal sectional view schematically showing a swaged portion

FIG. 10 is a view schematically showing an example of a rolling process.

FIG. 11 is a view schematically showing an example of a mounting process of a bottom member.

FIG. 12 is a view schematically showing an example of a mounting process of a balance ring. FIG.

[Fig. 13A] is a view schematically showing an example of a diameter expansion project, and shows a state before the diameter is enlarged.

[Fig. 13B] is a view schematically showing an example of a diameter expansion project, and shows a state in which the diameter is enlarged.

FIG. 14 is a view schematically showing an example of a mounting process of a back panel;

FIG. 15 is a view schematically showing an example of a coating process.

[Formation for carrying out the invention]

Hereinafter, an embodiment of a method of manufacturing a washing machine and a washing machine will be described with reference to the drawings. For example, the washing machine 100 shown in Fig. 1 is a so-called vertical-axis type washing machine in which the rotation center axis of the rotary groove extends in the vertical direction, and the inside of the outer casing 101 constituting the outer periphery thereof is elastically supported by the elastic suspension mechanism 103. The bottomed cylindrical water tank 102. Inside the water tank 102, a bottomed cylindrical rotary groove 104 that is open on the upper surface is rotatably provided.

In the rotary groove 104, for example, a metal crucible member 104a formed of stainless steel or the like constitutes a crotch portion, and the bottom portion 104b made of a synthetic resin, for example, constitutes a bottom portion. On the outer side of the bottom member 104b constituting the bottom of the rotary groove 104, a reinforcing member 104c for reinforcing the bottom member 104b, in other words, a bottom portion for reinforcing the rotary groove 104 is provided. The reinforcing member 104c is made of, for example, a metal formed of a stainless steel plate or the like. The rotation groove 104 is a washing tank that rotates around a vertical axis and serves as a washing stroke for washing the laundry and a washing course for washing the laundry, and a dewatering tank for dehydrating the dehydrated product.

The rotary groove 104 has a plurality of holes 105a in its peripheral wall portion. The holes 105a pass through the peripheral wall portion of the rotary groove 104, and are permeable to water and ventilating. this In addition, only a portion of the holes 105 are shown on the drawing. Further, the rotary groove 104 has a plurality of projections 105b on its peripheral wall portion. At this time, the projection 105b protrudes toward the inside of the rotation groove 104. A balance ring 106 made of a synthetic resin in which a liquid such as saline is sealed is attached to the upper portion of the rotary tub 104. The balance ring 106 is fixed from the outer surface side of the rotary groove 104 by, for example, a metal screw 106a made of stainless steel or the like. At the bottom in the rotation groove 104, a synthetic resin stirring body 107 is rotatably provided.

A drain path 108 is provided in a lower portion of the water tank 102. A drain valve 109 is provided in the drain path 108, and the drain valve 109 is opened to discharge the water in the water tank 102 to the outside of the machine. Further, a gas trap 110 for detecting a water level is provided at the bottom of the water tank 102. A water level sensor (not shown) is connected to the air trap 110 via a gas pipe 111. The water level sensor is now formed by a pressure sensor and detects the water level in the water tank 102 based on the pressure in the air trap 110.

A drive mechanism portion 113 is provided at a central portion of a lower portion of the water tank 102. The drive mechanism unit 113 includes a variable speed drive motor, a clutch mechanism, a speed reducer, a brake device, and the like. Moreover, the drive mechanism unit 113 is provided with a dewatering shaft 113a for mainly transmitting the rotational force of the motor to the rotary groove 104, and a washing shaft 113b for mainly transmitting the rotational force of the motor to the agitating body 107. The dewatering shaft 113a is an example of a rotation axis of the rotation groove, and the washing shaft 113b is an example of a rotation axis of the agitator. During the washing stroke or the washing stroke, the driving mechanism portion 113 decelerates the rotational force of the motor by the decelerating device, and transmits the stirring to the stirring via the washing shaft 113b by the switching clutch mechanism. Body 107. At the time of the dehydration stroke, the drive mechanism unit 113 does not have the rotational force of the motor of the deceleration device, but is transmitted to the rotary groove 104 and the agitating body 107 at a high speed via the dehydration shaft 113a by the switching clutch mechanism.

A top cover 114 is provided at an upper portion of the outer casing 101. In the top cover 114, for example, a double-pleated cover 115 for opening and closing the laundry inlet and outlet is provided to be openable and closable. Further, a tank cover 102a is attached to the upper portion of the water tank 102. An operation panel 117 is provided at a front portion of the top cover 114. A control device (not shown) that controls the overall operation of the washing machine 100 is provided on the back side of the operation panel 117. A water supply mechanism unit (not shown) that supplies water from the water channel into the water tank 102 is provided in the rear portion of the top cover 114.

Further, a circular concave region in which the agitating body 107 is disposed is provided in the inner bottom portion of the rotary groove 104. Further, a pump chamber 118 is formed between the concave portion and the agitating body 107. Here, the agitating body 107 has a disk shape having a ridge portion for generating a swirling water flow formed thereon. Further, the agitating body 107 has a plurality of water-passing holes that penetrate the plate surface up and down. Further, a plurality of pump blades 107a are integrally provided on the lower surface of the agitating body 107. The pump blade 107a is formed in a thin plate shape extending radially from the center portion in the radial direction. Further, a plurality of outflow ports for allowing water to flow out from the pump chamber 118 are provided in the outer peripheral portion of the pump chamber 118. At this time, three outflow ports are provided in the outer peripheral portion of the pump chamber 118, and the outflow port is, for example, three places at an angle of 120 degrees.

Further, a plurality of water passages 119 are provided in the side wall portion of the rotary groove 104, and the plurality of water passages extend upward from the respective outlets. The water passage 119 is a user who drains water from the pump chamber 118. At this time, at Although only one is shown in Fig. 1, three water passages 119 corresponding to three outlets are provided. The water passages 119 have sprinklers 119a at their upper portions. In the pump chamber 118, the water in the rotation tank 104 is discharged from the outlet of the pump chamber 118 toward the outer circumferential direction by the rotation of the agitating body 107. Further, the water rises in the water passage 119, and water is sprinkled from the spout 119a into the rotation groove 104. Thereby, the water is supplied from the spout 119a to the inside of the rotary tub 104 in a shower shape.

Further, the water passage 119 shown in Fig. 1 is provided at a position opposed to the joint portion of the rotary groove 104 described later in detail. Further, the biocide unit 120 is detachably attached to the lower portion of the water passage 119 provided to the joint portion. The biocide unit 120 is provided with a disinfectant (not shown) inside the sterilization agent cartridge formed of, for example, a resin material. A plurality of holes (not shown) are provided in the sterilization agent cartridge, and a part of the water formed in the water passage 119 also flows into the sterilization agent cartridge. Thereby, the disinfectant is dissolved in the water which has flowed into the sterilization agent cartridge, and the water containing the sterilization component flows in the water passage 119 to be sprinkled from the spout 119a.

Further, for example, the washing machine 200 shown in Fig. 2 is a so-called horizontal-axis type drum type washing machine in which the central axis of rotation of the rotary groove is horizontal or slightly inclined, and the outer casing 201 constituting the outer casing is made of synthetic resin. The base 202 is formed by a box body 203 coupled to the base 202. In Fig. 2, a front portion of the box body 203 on the left side is provided with a laundry inlet and outlet 204 at a substantially central portion thereof. Further, a door leaf 205 that opens and closes the laundry inlet and outlet 204 is provided in the front portion of the tank body 203. An operation panel 206 is provided at an upper portion of the front portion of the box body 203. Controlled laundry is provided on the inner side of the operation panel 206 The control device 207 of the overall operation of the machine 200. A bottomed cylindrical water tank 208 that closes the back side of the bottom portion is provided in the outer casing 201. The water tank 208 is elastically supported by the suspension device 209 such that its central axis is inclined on a slightly inclined axis which is inclined downward in the rearward direction of FIG.

A motor 210 is provided outside the back surface of the water tank 208. The motor 210 is composed of, for example, a DC brushless motor, and is of an outer rotor type, and includes a stator 211 and a rotor 212. The stator 211 is fixed to the outside of the back surface portion of the water tank 208. A rotating shaft 213 is provided at a center portion of the rotor 212. The rotating shaft 213 is supported by the bearing bracket 214 via the bearing 215 and is inserted into the inside of the water tank 208. A bottomed cylindrical drum 216 that closes the back side of the bottom portion is provided inside the water tank 208.

The drum 216 is made of, for example, a metal formed of a stainless steel plate or the like. The drum 216 has a center portion of the back surface portion fixed to the front end portion of the rotating shaft 213 of the motor 210, and is provided so as to be rotatable about an axis of the water tank 208, that is, an axis that can be inclined downward toward the rear. At this time, the motor 210 functions as a drive device that rotates the drum 216. At the bottom of the drum 216, in other words, on the outer surface of the back surface portion, a reinforcing member 217 for reinforcing the back surface portion of the drum 216 is provided. The reinforcing member 217 is made of, for example, metal formed by die casting of stainless steel or the like. In the peripheral wall portion constituting the crotch portion of the drum 216, a plurality of holes 218 are formed in the entire region. The holes 218 extend through the peripheral wall portion of the drum 216 to allow water and ventilation. Further, a plurality of separators 219 made of synthetic resin for picking up the laundry are provided on the inner peripheral portion of the drum 216. In addition, the water tank 208 can also be placed on a horizontal axis whose center axis is not inclined. At this time, the drum 216 is set to be horizontal. The axis rotates center.

Each of the drum 216 and the water tank 208 has an opening on the front side and is an opening 220 and an opening 221 . Around the opening 220 of the drum 216, a balance ring 222 made of a synthetic resin such as a liquid filled with saline or the like is provided. The balance ring 222 is fixed from the outer surface side of the drum 216 by, for example, a metal (not shown) made of stainless steel or the like. The opening 221 of the water tank 208 is connected to the laundry inlet and outlet 204, for example, via an annular bellows 223 formed of an elastic material such as rubber. Thereby, the laundry inlet/outlet 204 is connected to the inside of the drum 216 via the bellows 223, the opening 221 of the water tank 208, and the opening 220 of the drum 216.

A drain port 224 is provided at the bottom of the back side of the water tank 208. At the drain port 224, one end portion of the in-machine drain hose 225 is connected. The other end portion of the in-machine drain hose 225 is a filter cartridge 226 that is connected to the front portion of the base 202 provided in the outer casing 201. At the front end portion of the filter cartridge 226, the cover 227 is detachably mounted. Inside the filter cartridge 226, a bat filter (not shown) integrally formed with the lid 227 is housed. Further, a drain valve 228 is connected to the lower portion of the filter cartridge 226. A drain pipe 229 is connected to an outlet portion of the drain valve 228. The front end portion of the drain pipe 229 is led out from the base 202 of the outer casing 201 to the outside of the machine, and is connected to an off-board drain hose (not shown).

A gas trap 230 is provided at an upper portion of the filter cartridge 226. The air trap 230 and the water level sensor 231 disposed in the upper portion of the outer casing 201 are connected by a gas pipe 232. The water level sensor 231 detects the water level in the water tank 208 via the internal drain hose 225, the filter box 226, the air trap 230, and the air tube 232, and outputs the water level to the control device 207.

A water supply valve 233 and a water supply container 234 are provided in an upper portion of the outer casing 201. An external water supply hose extending from a faucet of a water passage (not shown) is connected to an inlet portion of the water supply valve 233. Further, one end portion of the connection pipe 235 is connected to the outlet portion of the water supply valve 233. The other end of the connecting pipe 235 is connected to the water supply container 234. A lotion storage unit (not shown) is provided inside the water supply container 234. One end of the organic inner water supply hose 236 is connected to the water supply container 234. The other end of the in-machine water supply hose 236 is connected to the upper portion of the water tank 208. The water supplied from the water channel via the water supply valve 233 is supplied into the water tank 208 via the connection pipe 235, the water supply container 234, and the in-machine water supply hose 236.

In the washing machine 100 described above, for example, as shown in FIG. 1, the antifouling paint 300 is applied to at least the outer surface of the dam member 104a constituting the side portion of the rotary groove 104. At this time, the antifouling paint 300 is provided on the outer surface of the side member which is formed on the side member 104a, that is, the side portion of the rotary groove 104. Further, in the above-described washing machine 200, for example, as shown in FIG. 2, at least the antifouling paint 300 is applied to the outer surface of the side portion of the drum 216. At this time, the antifouling paint 300 is provided on the outer surface of the side portion of the drum 216 as a whole. Further, although not shown, in particular, in the washing machine 100, an anti-fouling paint is applied to a portion of the dewatering shaft 113a that protrudes into the water tank 208 and a portion that protrudes into the water tank 208 in the washing shaft 113b.

In the present embodiment, the antifouling paint 300 is realized by a hydrophilic paint. Next, the case where the antifouling paint 300 is realized from a hydrophilic paint will be described in further detail. In other words, for example, when the antifouling paint 300 is realized by a hydrophilic coating material, for example, a cerium oxide-based inorganic coating material or the like is hydrophilic. The performance paint (hereinafter referred to as "hydrophilic material") is sprayed onto the outer surface of the side portion of the drum 216 or the outer surface of the side portion of the rotary groove 104 to form a coating.

In the present embodiment, for example, when the antifouling paint 300 is realized using a hydrophilic paint, at least a hydrophilic material forming the antifouling paint 300 having the following properties is applied. That is, in the antifouling paint 300 of the present embodiment, the contact angle of water has a hydrophilic property in which the contact angle of water with respect to glass is less than the lower limit. It is generally conceivable that the lower limit of the contact angle of water with respect to the glass is 20 degrees. Therefore, in the present embodiment, a hydrophilic material which forms an antifouling paint 300 of, for example, 13 degrees, in which the contact angle of water is less than 20 degrees is applied.

Further, in the present embodiment, a material containing a cerium oxide is used as the hydrophilic material forming the antifouling paint 300, and the antifouling paint 300 formed of the hydrophilic material has at least a hardness characteristic of a pencil hardness of 5H or more. In other words, the antifouling paint 300 of the present embodiment has a strong structure formed of a neodymium skeleton and a strong alkali metal or an alkaline earth metal, whereby the antifouling paint 300 has a firmness of a pencil hardness of 5H or more. structure.

Further, the antifouling paint 300 of the present embodiment has a decyl alcohol group and is formed to have an extremely high hydrophilic property. Specifically, the antifouling paint 300 has a hydrophilic property to the extent that water can be removed by contact with a general oily ink adhering to the antifouling paint 300. Therefore, even if the ink of the general oil pen is attached to the antifouling paint 300, the water can be peeled off and removed by floating the water by bringing the water into contact with the portion thereof.

Further, the antifouling paint 300 of the present embodiment has a thickness of 10 μm or less, and the film thickness thereof is extremely thin. That is, generally want to improve the hydrophilic properties At the time, the coating of the hydrophilic material must be repeated, and therefore, the film thickness of the obtained hydrophilic portion tends to be thick. In the present embodiment, a hydrophilic material of the antifouling paint 300 having extremely high hydrophilic properties can be formed by coating and baking a hydrophilic material once. Therefore, even if the coating of the hydrophilic material is not repeated, the antifouling paint 300 having extremely high hydrophilic properties can be formed, whereby the thickness of the antifouling paint 300 can be controlled to a thickness of 10 μm or less. Further, in the drawing, it is convenient to make the film thickness of the antifouling paint 300 be thicker than actually.

Further, the antifouling paint 300 of the present embodiment has a surface roughness of 2 μm or less. In the present embodiment, a hydrophilic material in which the antifouling paint 300 having such an extremely smooth surface is formed is applied. Further, the hydrophilic material to which the present embodiment is applied is milky white in the state before the blowing, but is transparent to the extent that it is almost impossible to judge milky white after the blowing, and is formed to be almost or completely transparent after the baking.

Further, in the washing machine 100, the antifouling paint 300 is provided on the outer surface of the side portion of the rotary tub 104. In the washing machine 200, the antifouling paint 300 is provided on the outer surface of the side portion of the drum 216 as a whole. Further, depending on the washing machine 100 or the washing machine 200, the water may be brought into contact with the antifouling paint 300 when the minimum water level in the settable water level is used or when the water level is lower than this.

Next, an example of a manufacturing method for manufacturing the washing machine 100 and the washing machine 200 will be described.

(1) An example of a method of manufacturing the vertical axis type washing machine 100

The manufacturing method of the washing machine 100 includes the following stamping processing engineering, washing engineering, draining/drying engineering, coating engineering, baking engineering, bending engineering, joining engineering, rolling processing engineering, bottom member mounting engineering, balance ring Installation work, installation work of the rotating tank, etc. Hereinafter, each project will be described in order.

≪ Stamping processing engineering≫

The press working process includes at least a cutting process, a hole forming process, and a protrusion forming process. In the cutting process, for example, as shown in FIG. 3, a plate material Sa which is a base material for forming the rotary groove 104 is obtained from a base material S made of metal such as stainless steel. That is, the base material S made of metal is sequentially fed by the feeder 401, and is cut in order by the press working by the cutter 402. Thereby, the sheet material Sa cut into a predetermined size in order to form the rotation groove 104 is obtained.

For example, as shown in FIG. 4, in the hole forming process, the hole 105a is formed in the plate material Sa by press working for a hole puncher (not shown). The hole 105a is a member that penetrates the sheet material Sa and functions as a hole that can be ventilated and water-passed in the rotation groove 104. Moreover, in the projection forming process, the projections 105b are formed on the sheet material Sa by press working by a projection forming machine (not shown). The projection 105b may protrude toward the inner side of the rotation groove 104 in the rotation groove 104, but may protrude toward the outer side of the rotation groove 104.

By this press working, the material is cut into a predetermined size, and the plate material Sa in which the hole 105a and the protrusion 105b are formed is obtained. In addition, the order of execution of the cutting process, the hole forming process, and the protrusion forming process can be appropriately changed, for example. The hole forming process can also be performed after the protrusion forming process. Further, the cutting process may be performed after the hole forming process and the protrusion forming process. Further, the cutting process, the hole forming process, and the protrusion forming process can be simultaneously performed. Further, when the obtained sheet material Sa is carried on a carriage, a truck, or the like for transportation, a protective sheet made of, for example, a plastic sheet or the like may be adhered to the surface of the sheet material Sa.

≪Washing ≫

In the washing process, the sheet Sa obtained by the press working of the press working process is washed. Further, when the sheet Sa is pasted with the protective sheet, the peeling of the protective sheet from the sheet Sa is performed before the cleaning process. In this washing process, since the plate material Sa is made of stainless steel, for example, degreasing of the plate material Sa can be performed using a strong alkaline degreasing agent called PH14. Therefore, the oil and fat component can be almost or surely removed from the surface of the plate material Sa by the cleaning effect of the strongly alkaline degreaser.

Drainage/drying engineering≫

In the draining/drying process, the degreaser remaining on the sheet Sa is removed, for example, by wiping. Further, the drying of the sheet material Sa is performed by a dryer (not shown).

≪ coating engineering≫

In this coating process, at this time, the entire surface of the side surface of the side portion of the rotary groove 104 in the sheet material Sa is sprayed with a hydrophilic material. Thereby, in the plate The outer surface of the side portion of the Sa which forms the rotary groove 104 is entirely coated with a hydrophilic material. As shown in FIG. 5, for example, the joint portions Ra and Rb which are set at both end portions in the longitudinal direction of the sheet material Sa, and the short side direction which is set in the sheet material Sa and which are orthogonal to the longitudinal direction are provided. The formed portions Rc and Rd at both end portions are entirely coated with a hydrophilic material. At this time, in the above-described washing process, as long as the oil and fat component is sufficiently removed, the hydrophilic material to be sprayed easily adheres to the surface of the plate material Sa. Further, the hole forming process or the protrusion forming process performed as described above may also be carried out after the coating process.

≪ baking engineering≫

In the baking process, the hydrophilic material coated on the sheet Sa is baked at a predetermined temperature. Further, the baking temperature of the hydrophilic material is generally set to be higher than a temperature at which the organic substance may be decomposed at a temperature of 250 ° C, and may be set, for example, at a temperature of 300 ° C or 500 ° C. By baking the hydrophilic material at such a high temperature, the organic substance contained in the hydrophilic material can be almost or completely decomposed, and the antifouling paint 300 which is almost or completely inorganicized can be formed. Thereby, the sheet material Sa to which the antifouling paint 300 is applied to the entire outer surface of the side portion forming the rotary groove 104 is obtained. Further, when the obtained sheet material Sa is loaded on a trolley, a truck, or the like for transportation, a protective sheet may be adhered to the surface of the sheet material Sa.

≪bending engineering≫

In this bending work, for example, the sheet material Sa to which the antifouling paint 300 is applied is bent into a cylindrical shape by a bending machine 501 as shown in Fig. 6 . In addition, When the protective sheet is adhered to the sheet Sa, the peeling of the protective sheet from the sheet Sa is performed before the bending work. At this time, the bending machine 501 feeds both sides of the sheet material Sa, that is, the surface on which the hydrophilic material is applied and the surface on which the non-coating is applied, and the sheet material Sa is bent into a cylindrical shape. Construction. In addition, the time required for the bending processing of the sheet material Sa by the bending machine 501 can be performed, for example, in about 2 to 3 seconds, but the time can be appropriately changed and implemented. Further, the above-described baking work can also be carried out after the bending work.

≪ ≫ ≫

In the joining process, for example, as shown in FIG. 7, both end portions in the longitudinal direction of the sheet material Sa which is almost bent into a cylindrical shape by bending work, that is, the end portions of the joint portions Ra and Rb are joined to each other. At this time, the joining of the both end portions in the longitudinal direction of the sheet material Sa is performed by caulking. Here, the aspect of the swaging will be described. In other words, for example, as shown in FIG. 8, the front end portions of both end portions in the longitudinal direction of the sheet material Sa are bent into a U-shaped cross section, and the end portions are joined to each other. Further, for example, as shown in FIG. 9, in a state in which both end portions of the sheet material Sa in the longitudinal direction are engaged with each other, it is difficult to form the engaging portion in a cross-sectional shape along the axial direction of the cylindrical plate member Sa. Thereby, both end portions in the longitudinal direction of the sheet material Sa are joined by caulking. Further, a cylindrical intermediate body 104S of the original shape of the rotary groove 104 is obtained.

At this time, the swaging of the both end portions of the sheet material Sa may be performed in the direction from the upper portion toward the lower portion, that is, in the direction of the arrow printing Ya shown in FIG. Rotating slot The direction from the portion on the lower side to the portion on the upper side, that is, the direction from the arrow Yb shown in Fig. 7 can be performed. Further, when the engaging portion that engages both end portions of the sheet material Sa is formed into a wave, it is concentrated almost between the formed portion Rc and the formed portion Rd, and is formed at one position in the formed portion Rb. The formed portion Rc is formed at 0. Further, the distribution in which the engaging portions are deformed into a wavy shape is, for example, evenly distributed along the axial direction of the cylindrical plate member Sa, that is, the side is concentrated while being formed between the formed portion Rc and the formed portion Rd. The processed portion Rc and the formed portion Rd are also provided in a plurality of places, and the distribution thereof can be appropriately adjusted and implemented.

According to the intermediate body 104S of the rotary groove 104 thus manufactured, the antifouling paint 300 is formed on the entire surface of the plate material Sa including the joint portions Ra and Rb before the joining process. Therefore, on the outer side of the intermediate body 104S, the antifouling paint 300 is applied to the entire surface including the riveted portion.

≪Rolling processing engineering≫

In the rolling process, the cylindrical sheet material Sa, that is, the rolling process applied to deform a part of the intermediate body 104S obtained by the joining process by caulking, is used. In other words, as shown in FIG. 10, the roller or the like (not shown) is pressed from the outer surface side toward the portion of the intermediate portion 104S formed by the formed portions Rc and Rd, and the formed portions Rc and Rd are rolled inwardly. shape. Thereby, the balance ring attaching portion 104Sa is formed in the upper portion of the intermediate body 104S, that is, in the upper portion of the rotary groove 104, in the lower portion of the intermediate body 104S, that is, in the rotary groove 104. The middle portion is the lower portion, and the bottom member mounting portion 104Sb is formed. In addition, in FIG. 10, illustration of the antifouling paint 300 is abbreviate|omitted.

Installation of the bottom member ≫

In this installation work, the bottom member 104b is attached to the bottom member mounting portion 104Sb provided on the lower side of the intermediate body 104S. That is, for example, as shown in FIG. 11, the bottom member 104b is fitted inside the bottom member mounting portion 104Sb. Then, the lower end of the bottom member mounting portion 104Sb is bent inward and locked to the bottom member 104b. Thereby, the bottom member 104b is attached to the bottom member mounting portion 104Sb to be fixed.

≪The installation of the balance ring≫

In this installation work, the balance ring 106 is attached to the balance ring attachment portion 104Sa provided on the upper side of the intermediate body 104S. That is, for example, as shown in FIG. 12, the balance ring 106 is fitted inside the balance ring mounting portion 104Sa. Then, the screw 106 is twisted in from the outside of the balance ring mounting portion 104Sa. Thereby, the balance ring 106 is attached to the balance ring attachment portion 104Sa to be fixed.

安装Rotating groove installation engineering≫

The rotary groove 104 is manufactured by attaching the bottom member 104b and the balance ring 106 to the intermediate body 104S. Then, its rotation groove 104 is rotatably installed in the water tank 102 of the washing machine 100. Further, the illustration of the hole 105a and the projection 105b is omitted in the drawing.

(2) An example of a method of manufacturing the drum type washing machine 200

The manufacturing method of the washing machine 200 includes the following pressing processing engineering, washing engineering, draining/drying engineering, bending engineering, joining engineering, diameter expansion engineering, back panel mounting engineering, coating engineering, baking engineering, balance ring Installation work, installation work of the rotating tank, etc. Hereinafter, each project will be described in order.

≪ Stamping processing engineering ≫ ‧ ≪ washing engineering ≫ ‧ ≪ drain / drying engineering ≫

The press working process, the washing process, and the draining/drying process are the same as the above-described press working, washing, and draining/drying processes, and therefore the description thereof will be omitted.

≪bending engineering≫

In this bending process, the sheet material Sa is bent into a cylindrical shape by a bending machine 501. That is, at this time, the sheet material Sa to which the antifouling paint 300 is not applied is bent into a cylindrical shape. Further, when the protective sheet is adhered to the sheet Sa, the peeling of the protective sheet from the sheet Sa is performed before the bending work.

≪ ≫ ≫

The joining process is the same as the joining process of the above-described caulking, and therefore the description thereof will be omitted.

≪ diameter expansion project≫

This diameter expansion project is also called expansion engineering. That is, in the diameter expansion project, the cylindrical plate material Sa is expanded, that is, the diameter of the intermediate body 216S obtained by the joining process is enlarged. That is, for example, as shown by an arrow E in Fig. 13A, a particularly intermediate portion of the intermediate body 216S is pushed outward from the inside of the intermediate body 216S by an expander (not shown). Thereby, for example, as shown in Fig. 13B, the diameter of the intermediate portion of the intermediate body 216S can be slightly enlarged. Further, in the drawings, for the convenience of explanation, the amount of enlargement of the diameter size is more exaggerated than actual.

安装Installation of the back panel≫

In this installation work, for example, as shown in FIG. 14, the back panel 216H is attached to the intermediate body 216S. That is, for example, a metal back surface plate 216H formed of stainless steel or the like is fitted into one end portion of the intermediate body 216S. Then, a screw (not shown) is twisted from the outside of the intermediate body 216S. Thereby, the back panel 216H is attached to one end of the intermediate body 216S and is fixed. Further, the back panel 216H is a rear surface constituting the drum 216, and a rotating shaft 213 of the motor 210 and a reinforcing member 217 are attached to the washing machine 200.

≪ coating engineering≫

In this coating process, at this time, the hydrophilic material is blown on the outer side of the side portion of the intermediate body 216S, that is, on the entire outer surface of the side portion forming the drum 216. That is, for example, as shown in FIG. 15, the intermediate body 216S to which the back plate 216H is attached is placed, for example, on the side on which the back plate 216H is mounted. Turntable 601. Then, the intermediate material 216S is rotated by the turntable 601, and a hydrophilic material is sprayed on the outer surface of the intermediate body 216S. Thereby, a hydrophilic material is applied to the outer surface of the side portion forming the drum 216. At this time, the portion of the intermediate body 216S which is joined by caulking and the portion fixed by the screw is sprayed with a hydrophilic material to cover the portion.

≪ baking engineering≫

The baking process is the same as the baking process described above, and therefore the description is omitted.

≪The installation of the balance ring≫

In this installation, the balance ring 222 is mounted to the intermediate body 216S. That is, the balance ring 222 is fitted into the end of the intermediate body 216S on the side opposite to the side on which the back panel 216H is mounted. Then, a screw (not shown) is twisted from the outside of the intermediate body 216S. Thereby, the balance ring 222 is attached to the intermediate body 216S to be fixed.

安装Rotating groove installation engineering≫

The drum 216 is fabricated by mounting the gimbal 222 on the intermediate body 216S. Then, its drum 216 is rotatably installed in the water tank 208 of the washing machine 200. Further, the illustration of the hole 218 and the like is omitted in the drawing.

According to the washing machines 100 and 200 of the present embodiment, the antifouling paint 300 having an antifouling function is applied to the outer surfaces of the side portions of the rotary grooves 104 and 216 which are rotatably provided in the water tanks 102 and 208. According to this configuration, the antifouling function by the antifouling paint 300 can keep the hand unreachable and cannot easily enter. The outer surfaces of the rotating grooves 104 and 216 of the maintenance such as the cleaning of the rows are cleaned, and the anti-fouling function can be utilized most effectively in the washing machines 100 and 200.

Further, according to the washing machines 100 and 200 of the present embodiment, the antifouling paint 300 is a hydrophilic paint having extremely high hydrophilic properties. Therefore, water easily immerses between the dirt adhering to the antifouling paint 300 and the surface of the antifouling paint 300, and the dirt adhering to the antifouling paint 300 can be floated or peeled off. Moreover, the antifouling function by the hydrophilicity of the antifouling paint 300 can prevent the hand from being able to be cleaned, and the outside of the side portions of the rotary grooves 104 and 216 that cannot be easily cleaned can be easily cleaned, and the washing machines 100 and 200 can be the most Effectively use the antifouling function of hydrophilicity.

Further, according to the washing machines 100 and 200, the antifouling paint 300 is provided on the outer surface of the side portions of the rotating rotary grooves 104 and 216. Therefore, when the rotary grooves 104 and 216 rotate, the dirt peeled off from the surfaces of the rotary grooves 104 and 216 is easily removed by the centrifugal force, and the surfaces of the rotary grooves 104 and 216 can be further cleaned.

Further, according to the washing machines 100 and 200, the antifouling paint 300 is provided on the outer surface of the side portions of the rotary grooves 104 and 216 as a whole. Therefore, the entire surface of the rotating grooves 104, 216 can be kept clean by the antifouling function of the antifouling paint 300. Further, according to the washing machines 100 and 200, since the rotary grooves 104 and 216 are not made of synthetic resin but made of metal, the coating can be formed by baking a hydrophilic material on the outer surface of the metal portions of the rotary grooves 104 and 216. Thereby, a strong and durable antifouling paint 300 which is highly inorganicized can be formed.

Moreover, according to the washing machines 100 and 200, the antifouling paint 300 is a water connection. The tentacles are less than the lower limit of the contact angle of water with respect to the glass and have a sterol group. Therefore, the antifouling paint 300 can exert extremely high hydrophilic properties. Thereby, water is easily immersed between the surface of the antifouling paint 300 and the dirt of the antifouling paint 300, and the dirt adhering to the antifouling paint 300 can be removed and removed.

Moreover, according to the washing machines 100 and 200, the antifouling paint 300 has a cerium oxide and has a hardness characteristic of a pencil hardness of 5H or more. Therefore, it is possible to prevent the occurrence of scratches in the antifouling paint 300 or the peeling of the antifouling paint 300. Further, according to the washing machines 100 and 200, the antifouling paint 300 has a thickness of 10 μm or less, and an extremely thin antifouling paint 300 can be realized. Further, according to the washing machines 100 and 200, the antifouling paint 300 has a surface roughness of 2 μm or less, and an extremely smooth antifouling paint 300 can be realized.

Further, in particular, according to the washing machine 100, a hydrophilic coating material is also applied to the dewatering shaft 113a and the washing shaft 113b for transmitting the rotational force of the motor to the rotary tub 104 or the agitating body 107, respectively. Therefore, the dewatering shaft 113a or the washing shaft 113b can also be hygienically maintained, and the inside of the tank can be maintained hygienically.

Further, the washing machine 100 is provided with a water passage 119 that faces the joint portion of the swaging groove of the rotary groove 104 and that includes the sterilization agent unit 120. Therefore, the joint portion for the caulking can impart a hygienic effect to the sterilization agent.

Moreover, according to the method of manufacturing a washing machine of the present embodiment, it is possible to provide the washing machines 100 and 200 which apply a stable quality antifouling paint. In particular, according to the manufacturing method for forming the antifouling paint before bending the sheet Sa, the sheet Sa to which the antifouling paint is applied may be treated in a flat shape, for example, stackable plural When the sheet material Sa is conveyed or the like, it is possible to improve the handling efficiency and workability.

Moreover, as long as the coating process is performed after the press working, the antifouling paint 300 can be formed on the front end surface of the hole formed in the plate material Sa and the front end portion of the protrusion. That is, a deformed portion is formed on the outer surface of the side portion of the rotary groove 104 and the drum 216, and a uniform antifouling paint 300 can be formed similarly to other flat portions. Further, when holes or projections are formed in the sheet material, there is a concern that an excessive load is applied to the sheet material. Therefore, by applying a coating process after such an excessive load is applied to the sheet material, it is possible to avoid an excessive load applied to the formed antifouling paint.

Further, in the press working process, the process of manufacturing a general rotating groove in which the antifouling paint is not applied is a project carried out in the upstream stage. Therefore, as long as the coating process is performed before the press working, the work after the press working can be performed by manufacturing a general rotating groove without applying the antifouling paint. Therefore, it is not necessary to change the existing manufacturing engineering, and the entire project including the coating engineering can be made simple. Further, since the work after the press working process can be performed by the existing manufacturing process, the work efficiency can be avoided.

Further, the washing machine 100 may be further configured to have a metal screw 106a attached to the rotary groove 104 or an antifouling paint 300 on the inner surface of the rotary groove 104. Further, the washing machine 200 may have a structure in which a metal screw attached to the drum 216 or an antifouling paint 300 is provided on the inner surface of the rotary tub 216. That is, the portion where the antifouling paint 300 is formed in the present embodiment is not limited to the side of the rotary groove 104. The outside of the portion or the outside of the side of the drum 216. Further, when the antifouling paint 300 is formed of a metal screw, it is not necessary to form the antifouling paint 300 as a whole in the screw, and it is sufficient to form the antifouling paint 300 on the surface of the screw head which is the outer surface. Further, when the antifouling paint 300 is formed on the inner surface of the rotary groove 104 or the drum 216, the antifouling paint 300 may be integrally formed on the inner surface, or the hydrophilic performance portion 300 may be formed on a part of the inner surface.

Further, the antifouling paint 300 can also be colored. That is, as the hydrophilic material forming the antifouling paint 300, a material which leaves a color after the substrate is blown and after baking can be applied. Thereby, it is possible to easily visually confirm whether or not unevenness occurs in the formed antifouling paint 300. For example, it is possible to specify that the antifouling paint 300 is not uniformly formed as a defective product.

Further, in the washing machines 100 and 200, it is also possible to set the water to be accumulated in the water tanks 102 and 208 to be rotated after the end of the washing course including the washing course, the washing course, the dehydration course, or the like, or during the execution of the washing course. The washing process of the rotation of the groove 104 and the drum 216. In the washing course, the dirt adhering to the antifouling paint 300 can be removed by contacting the antifouling paint 300 with water. Further, in the washing course, the amount of water accumulated in the inside of the water tanks 102, 208 is increased in accordance with the washing stroke, and the rotation speed of the rotary groove 104 and the drum 216 is set at a speed faster than the rotation speed of the washing stroke or the washing stroke. Just fine.

Further, depending on the washing machines 100 and 200, the rust preventive effect of the antifouling paint 300 can be expected.

(Other embodiments)

The present embodiment is not limited to the above-described embodiments, and may be expanded or deformed as follows, for example.

The antifouling paint is not limited to a hydrophilic paint which exhibits an antifouling function for hydrophilicity, and for example, a water repellent paint which exhibits an antifouling function by water repellency. At this time, in the coating process, the outer surface of the side portion of the plate in which the rotary groove is formed is sprayed with a coating having a water-repellent property, that is, a water-repellent paint is sprayed.

The antifouling paint is not provided on the outer surface of the side portion of the rotary groove, and may be formed as a part of the outer surface of the side portion of the rotary groove. Further, the antifouling paint may be formed on the outer surface of the back surface portion of the rotary tub or on the outer surface of the bottom surface. At this time, the antifouling paint may be provided on the entire outer surface of the back surface portion of the rotary tub, or may be provided in a part. Further, the antifouling paint may be provided on the entire outer surface of the bottom surface of the rotary groove, or may be provided in part. Further, the antifouling paint may be provided in a reinforcing member that reinforces the rotary groove. At this time, the antifouling paint may be provided in the entirety of the reinforcing member, or may be provided in a part. Further, the antifouling paint may be provided in a plurality of through holes formed in the rotary groove.

The process of applying the antifouling paint to the dewatering shaft 113a and the washing shaft 113b can be performed, for example, at an appropriate timing before or after assembly of the dewatering shaft 113a and the washing shaft 113b. Moreover, when an antifouling paint is applied to a component other than the rotary groove provided in the washing machine, the process of applying the antifouling paint can be performed before or after assembly of the constituent elements.

Moreover, the order and combination of the above-described respective manufacturing processes can be changed as appropriate.

Moreover, in the above embodiment, it is exemplified as being outside the side of the rotary groove. The antifouling paint is applied to the entire surface of the surface, but the antifouling paint may be applied to a portion where the coating is formed by appropriately adjusting the portion to be coated by the caulking at the outer surface of the side portion of the rotary groove.

The washing machine of the present embodiment described above is a washing machine in which the both ends of the metal plate material are caulked and joined to form a side portion of the rotary groove rotatably provided in the water tank, and is on the side of the rotary groove. At least the portion to be joined by riveting is applied to the outer portion to have an antifouling coating having an antifouling function.

Moreover, in the manufacturing method of the washing machine of this embodiment, the both ends of the metal plate material are crimped and joined, and the washing machine which forms the side part of the rotation groove currently rotatably provided in a water tank is manufactured, Before or after the joining of the both end portions of the above-mentioned plate material, a coating work for antifouling coating having an antifouling function is formed on at least a portion joined by caulking in the outer surface of the side portion of the rotary groove.

According to the method of manufacturing a washing machine or a washing machine of the present embodiment, the washing machine can cleanly protect the outer surface of the rotating groove of the portion which cannot be easily cleaned by the hand, and can effectively utilize the antifouling paint. Stain function.

Further, according to the embodiment of the present embodiment or the method of manufacturing the washing machine, both end portions of the plate material are joined by caulking. Therefore, for example, it is possible to easily join both end portions of the sheet material than the joint for welding, and it is possible to improve the manufacturing efficiency and reduce the manufacturing cost. Further, when the both end portions of the sheet material are welded by welding, it is preferable that the both end portions are not coated. However, when both end portions of the sheet material are joined by caulking, it is possible to apply the coating at both end portions. . because Thus, the antifouling paint can be applied to a wide range including both end portions of the sheet material, and as a result, the antifouling paint can be formed in a wide range outside the side portion of the rotary tub.

Further, the portion of the outer surface of the side portion of the rotary groove that is joined by the swaging is particularly deformed by the shape of the unevenness or the like as compared with the case of the fusion bonding, so that the dirt easily adheres to such uneven portions and is attached. The dirt part is easy to fall. According to this embodiment, at least such a caulking joint portion is provided with an antifouling paint. Therefore, the antifouling function can be further effectively utilized as an antifouling function.

Moreover, according to the present embodiment, after the coating process, the joining process for the caulking is performed, and the washing machine in which the antifouling paint is applied to at least the portion joined by the caulking at the outer surface of the side portion of the rotary groove can be stably and efficiently placed. .

Moreover, according to the present embodiment, after the joining process for the caulking, the coating process is applied, and the washing machine that applies the antifouling paint to at least the portion joined by the caulking at the outer surface of the side portion of the rotary groove can be stably and efficiently placed. .

Further, according to the present embodiment, the antifouling paint is applied to the portion of the rotary groove where the rolling process is performed for the so-called other components of the balance ring and the bottom member. Therefore, the antifouling paint can function as an antifouling function over a wide range of the outer surface of the side portion of the rotary groove including such a calendered portion.

Further, according to the present embodiment, the coating process is performed before or after the processing for applying the rolling process to a part of the rotary groove, and the material can be stably and efficiently placed outside the side of the rotary groove including the rolled portion. The entire range of washing machines that play an antifouling function.

Moreover, the washing machine according to the present embodiment can be manufactured by performing a bending process of bending a plate material into a cylindrical shape after the coating process. Therefore, when the washing machine is manufactured, the sheet material to which the antifouling paint is applied can be processed in a flat shape, for example, a plurality of sheets can be stacked and conveyed, and the handling convenience and workability can be improved.

Further, according to the washing machine of the present embodiment, after the coating process, and before the bending of the sheet material into a cylindrical shape, the baking of the coating material adhered to the sheet material in the coating process can be performed by baking. Engineering to manufacture. Thereby, the sheet can be bent after forming a strong antifouling paint, and the damage of the antifouling paint caused by the bent sheet can be suppressed.

Moreover, the washing machine according to the present embodiment can be manufactured by performing a coating process after bending a plate material into a cylindrical shape. Further, according to the washing machine, after the bending of the sheet material into a cylindrical shape, the baking process of baking the coating material adhered to the sheet material in the coating process can be carried out. Thus, damage to the antifouling coating can be suppressed even if a strong antifouling coating is formed after bending the sheet.

Moreover, the washing machine according to the present embodiment can be manufactured by performing a joining process of both end portions of the joined plate material after the bending process and before the coating process. Thereby, an antifouling paint can also be formed on the surface of the joined portion.

Further, according to the washing machine of the present embodiment, it is possible to perform the baking process by baking the coating material adhered to the sheet material in the coating process after the coating process. Thereby, a strong antifouling paint can be formed.

Moreover, the washing machine according to the embodiment can be expanded in diameter and After the coating process, it can be manufactured by performing a baking process of baking a coating material attached to a sheet material in a coating process. That is, a strong antifouling paint is formed after an excessive load application process, and damage of the antifouling paint can be suppressed.

Further, in the washing machine of the present embodiment, the antifouling paint may be applied to the portion of the rotary groove rotating shaft for rotating the rotary groove that protrudes into the water tank. Moreover, in the washing machine of the present embodiment, the antifouling paint may be applied to a portion of the agitating body rotating shaft for rotating the agitating body that is rotatably provided in the rotary tub to protrude into the water tank. Thereby, the rotation shaft of the rotary groove and the rotating shaft of the agitating body can be maintained sanitary, and the sanitary inside the tank can be maintained.

Moreover, according to the method of manufacturing a washing machine of the present embodiment, it is possible to stably and efficiently manufacture a washing machine capable of achieving the advantageous effects as described above.

Further, the present embodiment is presented as an example, and does not limit the scope of the invention. The implementation of the new rules can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the scope of the invention. The present invention and its modifications are intended to be included in the scope of the invention and the scope of the invention as defined in the scope of the claims.

100‧‧‧Washing machine

101‧‧‧Outer box

102‧‧‧Sink

102a‧‧‧Slot cover

103‧‧‧Elastic hanging mechanism

104‧‧‧Rotating slot

104a‧‧‧胴component

104b‧‧‧ bottom member

104c‧‧‧ reinforcing members

105a‧‧ hole

105b‧‧‧ Protrusion

106‧‧‧balance ring

106a‧‧‧screw

107‧‧‧Agitator

107a‧‧‧ pump blades

108‧‧‧Drainage path

109‧‧‧Drain valve

110‧‧‧ gas trap

111‧‧‧ trachea

113‧‧‧Drive Department

113a‧‧‧Drain shaft

113b‧‧‧Washing shaft

114‧‧‧ top cover

115‧‧‧ cover

117‧‧‧Operator panel

118‧‧‧ pump room

119‧‧‧Waterway

119a‧‧‧ sprinkler

120‧‧‧Fungicide unit

300‧‧‧Antifouling paint

Claims (10)

A washing machine is a washing machine that forms a side portion of a rotary groove that is rotatably provided in a water tank by caulking and joining both end portions of a metal plate material, at least in an outer surface of a side portion of the rotary groove The anti-fouling coating having an antifouling function is applied by riveting the joined portion. The washing machine according to claim 1, wherein after the antifouling coating is applied to at least both end portions of the plate material, the side portions of the rotating plate are formed by caulking and joining the both end portions of the plate material. The washing machine according to claim 1, wherein the side portions of the rotary groove are formed at both end portions of the plate material by caulking, and then the outer surface of the side portion of the rotary groove is joined by at least caulking. The portion is applied to the aforementioned antifouling coating. The washing machine according to the first aspect of the invention, wherein the portion of the rotary groove formed by joining the both ends of the plate material by caulking is provided with a portion to which a balance ring is attached, and the calendering portion is also subjected to a rolling process. The aforementioned antifouling coating is applied. The washing machine according to the first aspect of the invention, wherein the portion of the rotary groove formed by joining the both end portions of the plate material by caulking is attached to a portion of the bottom member that forms the bottom portion of the rotary groove, and is subjected to calendering. The aforementioned antifouling coating is also applied to the calendered portion thereof. A method of manufacturing a washing machine is a method of manufacturing a washing machine that forms a side portion of a rotary groove that is rotatably provided in a water tank by caulking and joining both end portions of a metal plate material, and is a method of riveting and joining the plate members Before or after the joining work of the end portions, at least a portion joined by caulking in the outer surface of the side portion of the aforementioned rotating groove is formed to form a coating process for antifouling coating having an antifouling function. The method for producing a washing machine according to claim 6, wherein the coating process is performed before the joining process, and the coating process is performed by applying the antifouling coating to at least both end portions of the plate material. . The method of manufacturing a washing machine according to claim 6, wherein the coating process is performed after the joining process, and the coating process is performed by at least riveting on an outer surface of a side portion of the rotating groove. The joined portion is subjected to the aforementioned antifouling coating. The method of manufacturing a washing machine according to the sixth aspect of the invention, further comprising the processing of the rolling process in the portion of the rotary groove formed by joining the both ends of the plate material by caulking; And performing the aforementioned coating process before or after the processing. The method of manufacturing a washing machine according to claim 6, further comprising a portion of the rotary groove formed by caulking and joining the both end portions of the plate material to a bottom member on which a bottom portion of the rotary groove is formed The processing of the calendering is carried out, and the aforementioned coating works are carried out before or after the processing.