TWI568905B - Washing machine and method of the same - Google Patents

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, the inner surface of the sink is not suitable for this type of application. The antifouling coating can also be kept relatively clean, so even if the antifouling function is maintained on the inner surface of the sink, the function cannot be effectively utilized.

[prior technical literature] [Patent Document]

[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.

The washing machine of the present embodiment is formed by bending a metal plate material into a cylindrical shape to form a washing machine that is rotatably provided on a side portion of a rotating tub in the water tank. The washing machine is manufactured by applying a coating process for applying an antifouling paint having an antifouling function to the outer surface of the side portion of the rotary groove formed in the plate member, and applying the outer surface of the side portion of the rotary groove. Antifouling paint.

In the method of manufacturing the washing machine of the present embodiment, a method of manufacturing a washing machine that is rotatably provided in a side portion of a rotating tub in a water tank by bending a metal plate material into a cylindrical shape is manufactured. In this method, a coating process for applying an antifouling paint having an antifouling function is performed on a surface of the side plate in which the rotating groove is formed, and the outer side of the side portion of the rotary groove is manufactured. A washing machine with antifouling paint.

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 mechanism

118‧‧‧ pump room

109‧‧‧Drain valve

108‧‧‧Drainage path

111‧‧‧ trachea

110‧‧‧ gas trap

L‧‧‧ water level

206‧‧‧Operator panel

207‧‧‧Control device

105‧‧‧ hole

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

Wa‧‧‧Wide size

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

105t‧‧‧ end face

218t‧‧‧ end face

Wb‧‧ wide size

FIG. 1 is a longitudinal cross-sectional side view schematically showing a configuration example of a vertical axis type washing machine according to the first embodiment.

[ Fig. 2] is a longitudinal cross-sectional view schematically showing a configuration example of the drum type washing machine of the first 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 shielding process.

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

FIG. 7 is a view schematically showing an example of a joining process.

FIG. 8 is a view schematically showing a modification of the joining process.

FIG. 9 is a view schematically showing an example of a rolling process.

FIG. 10 is a view schematically showing an example of a mounting process of the bottom member.

FIG. 11 is a view schematically showing an example of a mounting process of the balance ring.

FIG. 12 is a view schematically showing an example of a diameter expansion project.

FIG. 13 is a view schematically showing an example of a mounting process of the back panel.

FIG. 14 is a view schematically showing an example of a coating process.

Fig. 15 is a view corresponding to Fig. 5 in the second embodiment.

Fig. 16 is a view corresponding to Fig. 1 of the second embodiment.

Fig. 17 is a view corresponding to Fig. 2 of the third embodiment.

Fig. 18 is a view corresponding to Fig. 1 of the third embodiment.

Fig. 19 is a view corresponding to Fig. 2 of the fourth embodiment.

Fig. 20 is a view corresponding to Fig. 1 of the fourth embodiment.

Fig. 21 is a view corresponding to Fig. 2 (1) in a modified embodiment.

Fig. 22 is a view (No. 2) corresponding to Fig. 1 in a modified embodiment.

Fig. 23 is a view corresponding to Fig. 2 in a modified embodiment.

[Fig. 24] is an enlarged view showing a periphery of a hole in which an end surface of a hole does not have a hydrophilic performance portion, and (b) is a view showing a hydrophilic performance portion at an end surface of the hole. An enlarged view of the periphery of a hole as an example of a structure.

[Formation for carrying out the invention]

Hereinafter, a plurality of embodiments relating to a method of manufacturing a washing machine and a washing machine will be described with reference to the drawings. In the embodiments, substantially the same elements are denoted by the same reference numerals, and description thereof will be omitted.

(First embodiment)

For example, the washing machine 100 shown in FIG. 1 is the rotation center axis of the rotary groove. The so-called vertical-axis type washing machine that extends in the vertical direction elastically supports the bottomed cylindrical water tank 102 that is open on the upper side of the outer casing 101 constituting the outer periphery thereof by the elastic suspending mechanism 103. 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 rotary groove 104 is a washing tank that is configured to rotate around a vertical axis and serves as a washing course for washing the laundry and a washing course for washing the laundry, and a dewatering tank for dehydrating the washing.

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. Moreover, 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 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 at a lower portion of the water tank 102. On the drainage road The diameter 108 is provided with a drain valve 109, and by opening the drain valve 109, the water in the water tank 102 is discharged to the outside of the machine. Further, a gas trap 110 for detecting a water level is provided at the bottom of the outer 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 113 is provided at a central portion of the 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. Further, the drive mechanism 113 is provided with a dewatering shaft 113a for mainly transmitting the rotational force of the motor to the rotation 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. At the time of the washing stroke or the washing stroke, the driving mechanism 113 decelerates the rotational force of the motor by the speed reducing device, and transmits the torque to the stirring body 107 via the washing shaft 113b by the switching clutch mechanism. At the time of the washing stroke, the drive mechanism 113 does not decelerate the rotational force of the motor by 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. The top cover 114 is provided with an opening and closing, for example, a double-pleated cover 115 for opening and closing the laundry inlet and outlet. 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 portion as shown in the drawing is provided in the rear portion of the top casing 114 to supply water from the water passage into the water tank 102.

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 formed thereon with a projection for generating a swirling water flow. 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 apart.

Further, a plurality of water passages 119 extending upward from the respective outlets are provided in the side wall portion of the rotary groove 104. The water passage 119 is a user who drains water from the pump chamber 118. At this time, although only one is shown in FIG. 1, three water passages 119 corresponding to three outflow ports 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 disposed at a position facing the joint portion of the rotary groove 104 which will be described in detail later, and is disposed at a lower portion of the water passage 119 provided for the joint portion. The microbial unit 120 is detachably mounted. The sterilization agent unit 120 is formed, for example, of a resin material. A disinfectant (not shown) is provided inside the microbial kit. 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. A control device 207 that controls the overall operation of the washing machine 200 is provided on the back side of the operation panel 206. 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 elastically supports the center axis of the suspension device 209 on the slightly inclined axis which is lowered toward the right rearward direction in Fig. 2 .

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 aluminum 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. Further, the water tank 208 may be disposed on a horizontal axis whose center axis is not inclined, and at this time, the drum 216 is set to be rotatable about a horizontal axis.

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 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. In the row The nozzle 224 is connected to one end of the drain hose 225 in the machine. 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 it 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.

For example, as shown in FIG. 1, the above-described washing machine 100 is at least configured. The antifouling paint 300 is applied to the outside of the side member 104a of the side portion of the rotary groove 104. At this time, the antifouling paint 300 is formed almost entirely on the outer side of the side portion of the dam member 104a. Further, for example, as shown in FIG. 2, the above-described washing machine 200 is provided with an antifouling paint 300 applied to at least the outer side of the side portion of the drum 216. At this time, the antifouling paint 300 is formed almost entirely on the outer side of the side portion of the drum 216. 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 this way, the antifouling paint provided in the washing machine constantly exhibits an antifouling function.

In the present embodiment, the antifouling paint 300 is realized by a hydrophilic paint. Therefore, the antifouling paint often exhibits hydrophilic properties. Next, the case where the antifouling paint 300 is realized from a hydrophilic paint will be described in further detail. In the case where the antifouling paint 300 is realized by a hydrophilic paint, for example, a paint having hydrophilic properties such as a cerium oxide-based inorganic paint (hereinafter referred to as "hydrophilic material") is blown onto the side of the drum 216. A coating is formed on the outside of the portion or on the outside of the side of the rotary groove 104. At this time, since the drum 216 and the rotary groove 104 are both made of metal, the outer surface of the drum 216 or the outer surface of the rotary groove 104 is sprayed with a hydrophilic material, and can be covered by baking, and the paint can be made firm. . Further, when such a material is applied, the degreasing treatment for degreasing the surface of the substrate before blowing the material onto the substrate is general. In the present embodiment, since both the drum 216 and the rotary groove 104 of the base material are made of stainless steel, the degreasing treatment performed before the injection of the hydrophilic material can be degreased using a strong alkaline degreasing agent.

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 partial 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 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 siloxane 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, in general, when it is desired to improve the hydrophilic property, it is necessary to repeat the application of the hydrophilic material, and therefore the film thickness of the obtained hydrophilic portion tends to become thick. In this embodiment, it is applied by 1 By coating and baking the secondary hydrophilic material, a hydrophilic material of the antifouling coating 300 having extremely high hydrophilic properties can be formed. 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 baking.

Further, for example, as shown in FIG. 1, particularly in the vertical axis type washing machine 100, the antifouling paint 300 is set in a region where the washing machine 100 is higher than the lowest water level among the settable water levels. In the washing machine 100, the case where the minimum water level L is normally set is rare, and therefore, most of the cases are operated with a water level higher than the lowest water level L. Therefore, according to the washing machine 100 of the present embodiment, the water can be brought into contact with the antifouling paint 300 in most of the operations normally performed. In addition, even when the washing machine 100 is operated at the lowest water level L, the water in the water tank 208 can be caused to rotate, convect, or the like by the rotation of the agitating body 107, and the water can be allowed to reach the antifouling paint 300.

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, shading engineering, coating engineering, baking engineering, peeling shading engineering, bending engineering, joining engineering, rolling processing engineering, and bottom. Installation of components, installation of balance rings, installation of rotary grooves, 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. For example, as shown in FIG. 3, in the cutting process, for example, 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 a press forming process 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 the stamping process, cutting into a predetermined size and obtaining a shape A plate material Sa having a hole 105a and a projection 105b. Further, the order of execution of the cutting process, the hole forming process, and the protrusion forming process may be appropriately changed. For example, the hole forming process may 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 attached to 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 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).

≪ ≫ ≫ ≫

In the shielding project, the sheet is covered by a masking material (not shown) A predetermined portion in the outer surface of the side portion of the rotary groove 104 in Sa. For example, as shown in FIG. 5, the joint portions Ra and Rb which are set at both end portions in the longitudinal direction of the sheet material Sa are covered by the masking material, and the short side direction which is set in the sheet material Sa and which is straight in the longitudinal direction is set. The formed portions Rc and Rd at both end portions. In addition, the illustration of the hole 105a and the protrusion 105b is abbreviate|omitted by FIG.

The size of the joint portions Ra and Rb and the formed portions Rc and Rd covered by the masking material can be appropriately changed and implemented. For example, the wide dimension Wa of the joint portion Ra and the wide dimension Wb of the joint portion Rb can be set to be slightly larger than the size of the general weld width of 2 to 4 mm, for example, the longitudinal direction of the sheet Sa can be used. The end is set to a width of about 5 mm. Further, the wide sizes Wa and Wb may be set in the same size, or may be set in different sizes. Further, in the case of performing the baking process described in detail later, it is preferable to use a material having extremely high heat resistance as the masking material.

Further, when the portion of the sheet material Sa covered with the masking material is too large, there is a possibility that the area on which the antifouling paint is applied is narrowed outside the side portion of the rotary groove 104. Therefore, in this shading project, it must be noted that it is desirable that the area covered by the masking material is not more than necessary. In particular, the anti-fouling paint can be applied to an extremely wide range in the washing machine 100 in a region where the lowest water level L is higher than the set water level, and the area covered by the masking material is appropriately adjusted.

≪ coating engineering≫

In the coating process, at this time, the rotary groove 104 is formed in the plate Sa The outer surface of the side portion is sprayed with a hydrophilic material. Thereby, the surface on the outer surface of the side portion of the plate member Sa in which the rotary groove 104 is formed is coated with a hydrophilic material. At this time, a hydrophilic material is applied to the sheet Sa except for the portion covered by the masking material. Therefore, at this time, for example, in the sheet material Sa shown in FIG. 5, the joint portions Ra and Rb covered by the masking material and the formed portions Rc and Rd are not coated with a hydrophilic material. Moreover, 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 preferably set to a temperature higher than 250 ° C which may be decomposed by a general organic substance, and may be set, for example, at a temperature of 300 ° C or 500 ° C. By baking the hydrophilic material at such a temperature, the organic substance contained in the hydrophilic material can be almost or completely decomposed, and the hydrophilic material 300 which is almost or completely inorganicized can be formed.

≪Shielding and peeling engineering≫

In the masking peeling process, the masking material adhered to the sheet Sa is peeled off. Thereby, the sheet material Sa to which the antifouling paint 300 is applied can be obtained in a portion other than the portion covered by the masking material. In addition, when the obtained sheet Sa is mounted on a trolley, a truck, etc., it is pasted on the surface of the sheet Sa. Protect the sheet.

≪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 . 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 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. Further, the time required for the bending of the sheet material Sa by the bending machine 501 can be carried out, 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 are 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 welding. Thereby, the original cylindrical intermediate body 104S of the rotary groove 104 is obtained. Moreover, at this time, the welding of the sheet material Sa is performed in the direction from the upper side to the lower side in the rotation groove 104, that is, in the direction of the arrow printing Ya. However, the welding of the sheet material Sa may be directed in the direction from the portion on the lower side toward the portion on the upper side, that is, in the direction of the arrow Yb. get on. Further, for example, as shown in FIG. 8, both end portions in the longitudinal direction of the plate material Sa may be joined by caulking.

≪Rolling processing engineering≫

This rolling process is a calendering process in which a cylindrical plate material Sa, that is, a part of the intermediate body 104S obtained by the joining process is deformed. In other words, as shown in FIG. 9, the roller (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 inward. shape. Thereby, the balance ring attaching portion 104Sa is formed in the upper portion of the intermediate body 104S, that is, the upper portion of the rotary groove 104, and the lower portion of the intermediate portion 104S, that is, the lower portion in the rotary groove 104 is formed. The bottom member mounting portion 104Sb. In addition, in FIG. 9, the 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. 10, 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. 11, the balance ring 106 is fitted inside the balance ring mounting portion 104Sa. Then, the screw 106a 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 above-described joining process, and therefore the description thereof will be omitted.

≪ diameter expansion project≫

In the diameter expansion project (expansion project), the cylindrical plate material Sa is expanded, that is, the diameter of the intermediate body 216S obtained by the joining process is expanded. That is, for example, as shown by an arrow E in Fig. 12, a particularly intermediate portion of the intermediate body 216S is pushed outward from the inside of the intermediate body 216S by an amplifier (not shown). Thereby, for example, as shown in FIG. 12(b), 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. 13, the back panel 216H is attached to the intermediate body 216S. That is, for example, a metal formed of stainless steel or the like The back panel 216H is embedded in one end 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, a reinforcing member 217, and the like are attached to the washing machine 200.

≪ coating engineering≫

In this coating process, at this time, a hydrophilic material is blown on the outer side of the side portion of the intermediate body 216S, that is, on the outer surface of the side portion forming the drum 216. That is, for example, as shown in FIG. 14, the intermediate body 216S to which the back surface plate 216H is attached, for example, the side on which the back surface plate 216H is attached is the mounting 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 rotary groove 216. At this time, a hydrophilic material is also blown to the joined portion of the intermediate portion 216S and the portion fixed by the screw. Further, a predetermined portion in the outer surface of the side portion of the intermediate portion 216S may be covered by the masking material before the coating process. In this case, the portion covered with the masking material can be appropriately changed, for example, by the portion to be joined in the sheet material Sa. Thereby, for example, a structure in which the antifouling paint is not applied, such as a portion joined in the sheet material Sa, can be realized.

≪ 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 rotary groove 216 is manufactured by mounting the balance ring 222 in 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 of the antifouling paint 300 can be used to maintain the outer surface of the side portions of the rotary grooves 104 and 216 which are not easily maintained by the hand and cannot be easily cleaned, and the washing machine 100 and 200 can be the most Effectively use anti-fouling function.

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 used. The most effective use of 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 almost entirely. Therefore, the outer surface of the side portions of the rotary grooves 104, 216 can be almost completely cleaned 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.

Further, according to the washing machines 100 and 200, the antifouling paint 300 has a contact angle of water which is less than the lower limit of the contact angle of water with respect to the glass, and has 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 antifouling paint 300 from being damaged and to peel off the antifouling paint 300. Moreover, according to the washing machines 100 and 200, the antifouling paint 300 is 10 μm. The following thickness enables an extremely thin antifouling paint 300 to 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 applied to each of 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. 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, according to the washing machine 100, a water passage 119 including the sterilization agent unit 120 is disposed opposite to the joint portion of the rotary tub 104, that is, the portion where the antifouling paint 300 is not applied. Therefore, the hygienic effect of the disinfectant can be imparted to the portion where the antifouling effect by the antifouling paint 300 is not easily obtained.

Further, according to the washing machine 100, the antifouling paint 300 is set in the washing machine 100 in a region where the settable water level is higher than the water level of the lowest level L. Therefore, in most of the operations performed by the washing machine 100, the water can be brought into contact with or reach the antifouling paint 300, and the antifouling effect of the antifouling paint 300 can be effectively exhibited.

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 in which the antifouling paint is formed before the sheet material Sa is bent, the sheet material Sa to which the antifouling paint is applied can be treated in a flat shape, for example, a plurality of sheet materials Sa can be stacked and conveyed, and the handling property and workability can be improved. Improvement.

Further, the washing machine 100 may be further provided with a metal screw 106a attached to the rotary groove 104 or on the inner surface of the rotary groove 104. The structure of the antifouling paint 300 is provided. Moreover, the washing machine 200 may further have a structure including a metal screw attached to the drum 216 or an antifouling paint 300 even on the inner surface of the rotary groove 216. That is, the portion where the antifouling paint 300 is formed in the present embodiment is not limited to the outer surface of the side portion of the rotary groove 104 or the outer surface of the side surface of the roller 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, 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, setting of water in the water tanks 102 and 208 may be performed to rotate the tank. 104. The washing stroke of the rotation of 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.

(Second embodiment)

In the present embodiment, an embodiment in which the outer surface of the side surface of the rotary groove 104 is formed in the sheet material Sa and the antifouling paint 300 is not applied to the joined portion is also provided. In other words, for example, as shown in FIG. 15, in the shielding process, the joint portions Ra and Rb which are set at both end portions in the longitudinal direction of the sheet material Sa are covered by the masking material, and are set to be set in the sheet material Sa and long. The formed portions Rc and Rd at both end portions in the short-side direction that are straight in the side direction are not covered by the masking material.

Thereby, for example, as shown in FIG. 16, the antifouling paint 300 can be applied almost entirely on the outer side of the side portion of the rotary groove 104. Therefore, the antifouling paint can be made to have an antifouling function over the entire outer surface of the side portion of the entire rotary groove 104. In this way, in the masking process, the area to which the antifouling paint is applied can be appropriately adjusted on the outer side of the side portion of the rotating groove by appropriately adjusting the area covered by the masking material.

(Third embodiment)

In the present embodiment, the antifouling paint 300 is not provided integrally on the outer surface of the side portion of the drum 216 or the outer surface of the side portion of the rotary groove 104, but is a part of the outer surface of the side portion of the drum 216 or a part of the side portion of the rotary groove 104. Set the antifouling paint 300.

That is, as shown in FIG. 17 or FIG. 18, the drum of the washing machine 200 The side portion of the 216 or the side portion of the rotary groove 104 of the washing machine 100 is accumulated in the water tank 208 or accumulated in the washing operation or the washing operation at a portion lower than the set water level L indicated by the one-dot chain line. The portion of the water tank 102 that is in contact with water. Therefore, the portion of the outer surface of the side portion of the drum 216 or the outer portion of the side portion of the rotary groove 104 that is lower than the set water level L can be relatively cleanly held even without the antifouling paint 300. However, the outer surface of the side surface of the drum 216 or the outer surface of the side portion of the rotary groove 104 at a position higher than the set water level L is accumulated in the water tank 208 or accumulated in the water tank 102 during the washing operation or the washing operation. The part of the water that is not easily accessible, so the dirt is likely to remain.

Therefore, in the present embodiment, as shown in Fig. 17 or Fig. 18, the antifouling paint 300 is provided on the outer surface of the side portion of the drum 216 or the outer surface of the side portion of the rotary groove 104, which is higher than the set water level L. Thereby, in the outer surface of the side portion of the drum 216 or the outer surface of the side portion of the rotary groove 104, the hydrophilic property as an example of the antifouling function can be imparted to the portion where the dirt easily remains, and the hydrophilic property can be effectively utilized. Anti-fouling function. Moreover, the amount of use of the hydrophilic material can be reduced. Further, since the set water level L can be changed, the area where the antifouling paint 300 is formed is appropriately adjusted in accordance with the desired water level. At this time, the area where the antifouling paint 300 is formed is set widely, for example, when the washing machines 100 and 200 include a settable minimum water level or a range in which the water level can be varied.

(Fourth embodiment)

This embodiment is also not the entire outer surface of the side portion of the drum 216. The antifouling paint 300 is integrally provided on the outer surface of the side portion of the rotary groove 104, but the antifouling paint 300 is provided on a part of the outer side of the side portion of the drum 216 or a part of the side portion of the rotary groove 104.

That is, as described above, the outer surface of the side portion of the drum 216 or the outer surface of the side portion of the rotary groove 104 is lower than the set water level L, and although the water is easily contacted and relatively cleanly held, the residue is not completely left. dirt. In particular, a portion of the outer surface of the side surface of the drum 216 or the outer surface of the side portion of the rotary groove 104 that is lower than the set water level L is a portion that comes into contact with water during the washing operation or the washing operation. Therefore, when there is dirt remaining in this portion, the dirt is deteriorated due to a change in time or the like, and the deteriorated dirt may be transferred to the laundry during the washing operation or the washing operation.

Therefore, in the present embodiment, as shown in Fig. 19 or Fig. 20, the antifouling paint 300 is provided on the outer surface of the side portion of the drum 216 or the outer surface of the side portion of the rotary groove 104, which is lower than the set water level L. In this way, in the outer surface of the side portion of the drum 216 or the outer surface of the side portion of the rotary groove 104, there is a possibility that the dirt remains in the portion where the holder is relatively clean, and the hydrophilic property as an example of the antifouling function is concentrated. Further, it is possible to prevent the deterioration of the dirt during the washing operation or the washing operation to the laundry. Moreover, the amount of use of the hydrophilic material can be reduced. Further, since the set water level L can be changed, the area where the antifouling paint 300 is formed is appropriately adjusted in accordance with the desired water level. At this time, the region where the antifouling paint 300 is formed is widely set, for example, in the washing machine 100, 200 including the settable minimum water level, or the range in which the water level can be changed.

(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 material that 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 forming the rotary groove in the sheet material has a water-repellent coating material, that is, a water-repellent coating material is applied for coating.

The antifouling paint is not provided integrally with the outer surface of the side portion of the rotary groove, but 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 at an appropriate timing, for example, 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.

Further, for example, as shown in FIG. 21, the washing machine 200 may be configured to include the antifouling paint 300 on the outer surface of the bottom portion constituting the back surface portion of the drum 216. At this time, the antifouling paint 300 may be entirely provided on the outer surface of the back surface of the drum 216, or the antifouling paint 300 may be provided on a part of the outer surface of the back surface of the drum 216. Further, although not shown, the washing machine 100 may be made of a metal formed of stainless steel or the like, for example, after forming the bottom member 104b of the bottom portion, and may be formed on the outer surface of the bottom portion formed of the metal bottom member 104b. The composition of the stain coating 300. At this time, the antifouling paint 300 may be integrally provided on the outer surface of the metal bottom, or the antifouling paint 300 may be provided on a part of the outer surface of the metal bottom.

Further, for example, as shown in FIG. 22, the washing machine 200 may be configured to include the antifouling paint 300 on the reinforcing member 217 that reinforces the bottom portion of the back surface portion of the drum 216. At this time, the antifouling paint 300 may be provided on the entire surface of the reinforcing member 217, and the antifouling paint 300 may be provided on a part of the surface of the reinforcing member 217. Further, for example, as shown in FIG. 23, the washing machine 100 may further include a configuration in which the reinforcing member 104c at the bottom of the reinforcing rotary groove 104 is provided with the antifouling paint 300. At this time, the antifouling paint 300 may be provided on the entire surface of the reinforcing member 104c, and the antifouling paint 300 may be provided on a part of the surface of the reinforcing member 104c. Further, the antifouling paint 300 may be provided on both the upper surface and the lower surface of the reinforcing member 104c, and the antifouling paint 300 may be provided on either of the upper surface and the lower surface of the reinforcing member 104c.

Further, for example, as shown in FIG. 24(a), the washing machines 100 and 200 may not have the end faces 105t and 218t that constitute the inner circumferential surfaces of the holes 105a and 218. In the configuration of the hydrophilic performance film 300, for example, as shown in FIG. 24(b), the washing machines 100 and 200 may have a configuration in which the hydrophilic performance film 300 is provided on the end faces 105t and 218 of the holes 105a and 218.

Further, the above-described respective embodiments and modified embodiments may be combined as appropriate.

The washing machine according to the embodiment of the present invention described above is formed by bending a metal plate material into a cylindrical shape to form a washing machine rotatably provided on a side portion of a rotary groove in the water tank, and forming the rotation in the plate material. The outer surface of the side portion of the groove is manufactured by applying a coating material to which an antifouling coating material having an antifouling function is applied, and an antifouling coating material is applied to the outer surface of the side portion of the rotary groove.

Moreover, the method for manufacturing a washing machine according to the present embodiment is a method of manufacturing a washing machine in which a metal plate material is bent into a cylindrical shape to form a side portion of a rotary groove rotatably provided in a water tank, and the plate is formed. In the surface on which the outer surface of the side portion of the rotary groove is formed, a washing machine to which an antifouling coating material having an antifouling function is applied is applied to manufacture a washing machine to which an antifouling coating material is applied on the outer side 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.

Moreover, the washing machine according to the present embodiment is 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 antifouling paint can be applied in a flat shape. The sheet material, for example, can be stacked and transported in a plurality of sheets, and the handling property can be improved and the workability can be improved.

Further, the washing machine of the present embodiment is a washing machine manufactured by joining the both end portions of the joined plate material after the bending process, and the anti-fouling paint is not applied to both ends of the joining material in the coating material in the coating process. . In addition, the washing machine is a part that is processed by a processing project in a sheet material by a washing machine manufactured by performing a machining process on a cylindrical sheet material after bending the sheet material into a cylindrical shape. No antifouling coating was applied. Specifically, the washing machine is not subjected to an antifouling paint in a portion where a calendering process is applied to the sheet. Further, the anti-fouling paint was not applied to the portion of the plate in which the balance ring was attached. Further, the portion in which the bottom member was attached to the sheet material was not subjected to the antifouling paint. That is, when the antifouling paint is present in a portion of the sheet which is processed by the processing, when the processing is performed, the antifouling paint at the processed portion may be damaged. Therefore, the antifouling coating can be prevented from being damaged by applying the antifouling paint to the portion of the sheet which is processed by the processing. Moreover, the amount of the material forming the antifouling paint can be suppressed, which is also advantageous from the viewpoint of cost.

Further, in particular, when the TIC welded plate material is joined, when the coating is applied to the joined portion or the periphery thereof, the welding may not proceed smoothly. According to the present embodiment, in the coating process, the antifouling coating is not applied to both end portions joined to the sheet material. Therefore, even when the sheet material is welded by TIG, the welding of the sheet material can be performed satisfactorily.

Further, according to the washing machine of the present embodiment, baking can be performed after the coating process and before the bending of the plate material into a cylindrical shape. It is manufactured in the baking process of the coating material to which the coating works are attached to the board. Thereby, the sheet can be bent after forming a strong antifouling paint, and the damage of the sheet antifouling paint with bending 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 performed. Thus, damage to the antifouling coating can be suppressed even if a strong antifouling coating is formed after bending the sheet.

Further, the washing machine according to the present embodiment can be manufactured by performing a joining process of both end portions of the joined sheet 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, the washing machine according to the present embodiment can be manufactured by baking a baking material which is adhered to the coating material of the coating material after the coating process. Thereby, a strong antifouling paint can be formed.

Moreover, the washing machine according to the present embodiment can be manufactured by performing a coating process after the hole forming process of the plate forming hole. Moreover, the washing machine according to the present embodiment can be manufactured by performing a coating process after forming a projection of a projection of a sheet material. Moreover, the washing machine according to the present embodiment can be manufactured by performing a bending process in which a plate material is bent into a cylindrical shape and a joining process of a joined plate material, and then expanding the diameter of the cylindrical plate material. Moreover, the washing machine according to the present embodiment can be manufactured by performing coating engineering after the diameter expansion project. Made. In the hole forming process, the protrusion forming process, and the diameter expansion project, there is a concern that an excessive load is applied to the sheet. Therefore, by applying a coating process after such an excessive load is applied to the sheet material, an excessive load can be prevented from being applied to the formed antifouling paint.

Further, the washing machine according to the present embodiment can be manufactured by performing a baking process of baking a coating material adhered to a sheet material in a coating process after the diameter expansion project and the 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.

Moreover, in the washing machine according to the present embodiment, in the coating work, the anti-fouling coating is applied to the outer surface of the side portion of the rotary groove in the plate material to a region higher than the lowest water level that can be set. Thereby, in most of the operations performed by the washing machine, the water can be brought into contact with or reach the antifouling paint, and the antifouling effect by the antifouling paint can be effectively exhibited.

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 to protrude into the water tank. Further, in the washing machine according to the present embodiment, the antifouling paint may be applied to the portion of the stirring body rotating shaft for rotatably rotating the stirring body provided in the rotating tank. Thereby, the rotating groove rotating shaft and the stirring body rotating shaft can also maintain hygiene, 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 these new rules can be implemented in a variety of other forms, and without departing from the scope of the invention. Various omissions, substitutions, and changes are made. 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.

117‧‧‧Operator panel

104‧‧‧Rotating slot

115‧‧‧ cover

100‧‧‧Washing machine

114‧‧‧ top cover

102a‧‧‧Slot cover

105b‧‧‧ hole

101‧‧‧Outer box

102‧‧‧Sink

103‧‧‧Elastic hanging mechanism

106‧‧‧balance ring

104a‧‧‧胴component

104b‧‧‧ Reinforce the bottom member

104c‧‧‧ reinforcing members

L‧‧‧ water level

105a‧‧ hole

107a‧‧‧ pump blades

119a‧‧‧ sprinkler

119‧‧‧Waterway

120‧‧‧Fungicide unit

107‧‧‧Agitator

113b‧‧‧Washing shaft

113a‧‧‧Drain shaft

113‧‧‧ drive mechanism

118‧‧‧ pump room

109‧‧‧Drain valve

108‧‧‧Drainage path

106a‧‧‧screw

300‧‧‧Antifouling paint

111‧‧‧ trachea

110‧‧‧ gas trap

Claims (44)

A washing machine is a washing machine formed by bending a metal plate into a cylindrical shape to form a side portion of a rotary groove provided in a water tank, wherein an outer surface of a side portion of the rotary groove is formed in the plate member The surface is subjected to a coating process for applying an antifouling paint having an antifouling function, and after the foregoing coating process, baking is performed to bake the coating material attached to the sheet material in the coating process, and the sheet is An antifouling paint was applied to the outer side of the side portion of the rotary groove by bending in a cylindrical shape. The washing machine according to claim 1, wherein after the bending process, the joining machine is joined by joining the both end portions of the plate material, and the coating process is at least the plate material. The aforementioned antifouling paint is applied in a region other than the both end portions. The washing machine according to claim 1, wherein in the coating process, the antifouling paint is not applied to the portion joined to the plate material. The washing machine according to the first aspect of the invention, which is manufactured by a processing project in which a cylindrical material is applied to a sheet material after bending the steel sheet into a cylindrical shape, In the coating process, the portion to be processed by the aforementioned processing in the above-mentioned sheet material is not subjected to the aforementioned antifouling paint. A washing machine as recited in claim 4, wherein In the above-mentioned processing, the rolling process is performed by rolling a part of the cylindrical plate material, and in the coating process, the antifouling coating is not applied to the portion subjected to the rolling process in the plate material. . The washing machine according to claim 4, wherein the processing is performed by attaching a balance ring to the plate material which is formed into a cylindrical shape, and in the coating process, the balance ring is attached to the plate material. The part does not apply the aforementioned antifouling paint. The washing machine according to claim 4, wherein the processing is performed by attaching a bottom member that forms a bottom portion of the rotating groove to the cylindrical plate material, and the coating process is The portion of the sheet in which the aforementioned bottom member is attached is not subjected to the aforementioned antifouling paint. The washing machine according to the first aspect of the invention, which is manufactured by the baking process of baking the coating material adhered to the plate material in the coating process before bending the plate material into a cylindrical shape. . The washing machine according to claim 1, wherein after the bending of the plate material into a cylindrical shape, the baking process is performed by baking the coating material adhered to the plate material in the coating process. . A washing machine is a washing machine that is formed by bending a side plate of a rotating groove provided in a water tank by bending a metal plate material into a cylindrical shape. In the bending process in which the sheet material is bent into a cylindrical shape, a coating process for applying an antifouling paint having an antifouling function is performed by forming an outer surface of the side portion of the rotating groove in the sheet material. After the coating process described above, baking is performed in the baking process of the coating material adhered to the above-mentioned sheet material by the coating process, and an antifouling paint is applied on the outside of the side portion of the aforementioned rotating groove. The washing machine according to claim 10, which is manufactured by performing a joining process of joining the both end portions of the plate material after the bending process and before the coating process. The washing machine according to claim 10, wherein in the coating process, the antifouling paint is not applied to the portion joined to the plate material. The washing machine according to claim 1, wherein the washing machine is formed by performing the coating process after the hole forming process of the plate forming hole. The washing machine according to claim 1, wherein the washing machine is formed by performing the coating process after forming a projection forming projection of the sheet material. The washing machine according to claim 1, wherein the washing machine is manufactured by performing a projection forming process for forming a projection on the sheet material after the coating process. The washing machine according to claim 1, wherein the plate material is bent into a cylindrical shape and joined to the plate material. After the joining process, it is manufactured by performing a diameter expansion project that expands the diameter of the cylindrical plate material. The washing machine according to claim 16, wherein the washing machine is manufactured by performing the coating process after the diameter expansion process. The washing machine according to claim 17, wherein after the diameter expansion project and the coating process, baking is performed by baking a coating material adhered to the plate material in the coating process. In the washing machine according to the first aspect of the invention, in the coating material, the anti-fouling is applied to a portion of the side surface of the rotating groove that is higher than a lower water level. coating. The washing machine according to the first aspect of the invention, comprising: a rotary groove rotating shaft for rotating the rotary groove, and an antifouling function having an antifouling function in a portion of the rotary groove rotating shaft that protrudes into the water tank coating. The washing machine according to the first aspect of the invention, further comprising: a stirring body rotatably provided in the rotating tank; and a stirring body rotating shaft for rotating the stirring body, in the rotating shaft of the stirring body The portion protruding in the water tank is applied to an antifouling paint having an antifouling function. A method of manufacturing a washing machine, which is formed by bending a metal plate material into a cylindrical shape to form a side portion of a rotary groove provided in a water tank A method of a washing machine, wherein the method of applying an antifouling paint having an antifouling function is performed by forming a side surface of the side surface of the rotating groove in the sheet material, and after the coating process is carried out, The baking process of the coating material adhered to the plate material in the coating process described above, and the bending process of bending the plate material into a cylindrical shape are performed, and an antifouling paint is applied to the outer surface of the side portion of the rotating groove. The method of manufacturing a washing machine according to claim 22, wherein after the bending process, a joining process of joining the both end portions of the plate material is performed, and in the coating process, at least two of the plate materials are included. The aforementioned antifouling paint is applied to a region other than the end portion. The method for producing a washing machine according to claim 22, wherein in the coating process, the antifouling paint is not applied to a portion joined to the plate material. The method for producing a washing machine according to claim 22, wherein after the bending of the sheet material into a cylindrical shape, a processing for applying the cylindrical sheet material to the sheet is performed, and the coating is performed. In the overcoating process, the antifouling paint is not applied to the portion of the above-mentioned sheet material which has been processed by the aforementioned processing. The method of manufacturing a washing machine according to claim 25, wherein in the processing, a rolling process is performed on a part of the cylindrical plate material, and the coating process is in the plate material. Calendered The part of the work does not apply the aforementioned antifouling paint. The method of manufacturing a washing machine according to claim 25, wherein in the processing, a balance ring is attached to the cylindrical plate material, and in the coating process, the balance ring is attached to the plate material. The part does not apply the aforementioned antifouling paint. The method of manufacturing a washing machine according to claim 25, wherein in the processing, the bottom member that forms the bottom of the rotating groove is attached to the cylindrical plate material, and the coating process is as described above. The portion of the sheet in which the aforementioned bottom member is attached is not subjected to the aforementioned antifouling paint. The method for producing a washing machine according to claim 22, wherein before the bending of the sheet material into a cylindrical shape, a baking process of baking the coating material adhered to the sheet material in the coating process is performed. The method of manufacturing a washing machine for a washing machine according to claim 22, wherein after the bending of the sheet material into a cylindrical shape, baking of the coating material adhered to the sheet material is performed in the coating process. engineering. A method of manufacturing a washing machine for manufacturing a washing machine provided on a side portion of a rotary groove provided in a water tank by bending a metal plate material into a cylindrical shape, wherein the method is to bend the plate material into a circle After the cylindrical bending process, the outer surface of the side portion of the aforementioned rotating groove is formed in the aforementioned plate material Carrying out a coating process for applying an antifouling paint having an antifouling function, and after the foregoing coating process, performing a baking process of baking the coating material adhered to the above-mentioned plate material in the aforementioned coating process, and in the aforementioned rotary groove An antifouling coating is applied to the outside of the side. The method of manufacturing a washing machine according to claim 31, wherein the joining process of joining the both end portions of the sheet material is performed after the bending process and before the coating process. The method for producing a washing machine according to claim 31, wherein in the coating process, the antifouling paint is not applied to a portion to be bonded to the plate material. The method of manufacturing a washing machine according to claim 22, wherein the coating process is performed after the hole forming process of the plate forming hole. The method for producing a washing machine according to claim 22, wherein the coating process is performed after the protrusion forming process of the sheet forming protrusion. The method for producing a washing machine according to claim 22, wherein after the coating process, a projection forming process for forming a projection on the plate material is performed. The method for producing a washing machine according to the invention of claim 22, wherein the bending of the sheet material is performed in a cylindrical shape, and the joining of the sheet material is performed, and then the diameter of the diameter of the sheet material which is formed into a cylindrical shape is enlarged. Expand the project. The manufacturer of the washing machine as described in claim 37 of the patent application scope The method wherein the aforementioned coating process is carried out after the aforementioned diameter expansion project. The method for producing a washing machine according to claim 38, wherein after the diameter expansion project and the coating process, a baking process of baking a coating material adhered to the plate material in the coating process is performed. The method of manufacturing a washing machine according to claim 22, wherein the coating process is performed by forming a portion of the outer surface of the side portion of the rotary groove that is higher than a lower water level. The aforementioned antifouling coating. The method of manufacturing a washing machine according to the invention of claim 22, wherein an antifouling paint having an antifouling function is applied to a portion of the rotary groove rotating shaft for rotating the rotary groove to protrude into the water tank. The method for producing a washing machine according to claim 22, wherein the portion of the agitating body rotating shaft for rotatably rotating the agitating body in the rotating tank is protruded toward the water tank Antifouling coating for antifouling function. The washing machine according to claim 1, wherein the antifouling paint is a person who constantly exhibits an antifouling function. The method for producing a washing machine according to claim 22, wherein an antifouling paint which exhibits an antifouling function at all times is applied as the antifouling paint by the coating process.