JP7535161B2 - Clothes Processing Equipment - Google Patents

Description

An embodiment of the present invention relates to a clothing processing device.

In recent years, in order to meet the needs of users for improved convenience, washing machines, which are an example of a clothing treatment device that performs a specific treatment on clothing, have been developed with a configuration that stores multiple doses of clothing treatment agents such as detergent and fabric softener in a tank for automatic dispensing, and an automatic dispensing unit that automatically dispenses the required amount from the tank into the water tub during the wash cycle. This type of washing machine is considered to be configured to be equipped with a float that rotates in the tank according to the amount of clothing treatment agent remaining, and a Hall IC that detects the magnet held by this float, thereby making it possible to detect the amount of clothing treatment agent remaining in the tank (see, for example, Patent Document 1).

JP 2019-42185 A

However, the Hall IC used in the conventional configuration is configured to switch between an on state and an off state in response to the approach and separation of a magnet, or in other words, a float having this magnet. In other words, the Hall IC used in the conventional configuration can only detect whether the float has approached or separated, and the range of detection is very narrow. Therefore, even if the conventional configuration can detect whether the amount of clothing treatment agent remaining in the tank is high or low, it cannot obtain finely detailed information such as how much clothing treatment agent is remaining in the tank.

Therefore, we provide a clothing treatment device that can detect the remaining amount of clothing treatment agent in the tank in more detail.

The clothing treatment device of this embodiment includes a clothing treatment tank for accommodating clothing, a tank for storing a clothing treatment agent for treating clothing, and an input unit for inputting the clothing treatment agent from the tank into the clothing treatment tank, the tank includes a case that forms the outer shell of the tank, a float that is displaced according to the remaining amount of clothing treatment agent stored in the case, a detectable part that is provided on the float and whose state changes according to the displacement of the float, and a detector that detects the state of the detectable part, the float includes a rotation shaft that rotatably supports the float in the case, and a float main body that rotates around the rotation shaft , and the detectable part is provided on the rotation shaft side of the float main body, and the rotation radius of the float main body is longer than the rotation radius of the detectable part. Alternatively, the float main body and the detected part rotate in conjunction with each other, and during this rotation, the distance by which the float main body rotates is longer than the distance by which the detected part rotates.

FIG. 1 is a vertical sectional side view showing a schematic configuration example of a washing machine according to an embodiment of the present invention; FIG. 2 is a diagram illustrating an example of the configuration of a water supply unit according to the present embodiment. FIG. 2 is a block diagram showing an example of the configuration of a control system of the washing machine according to the present embodiment. FIG. 1 is a vertical cross-sectional side view showing an example of the configuration of a tank according to an embodiment of the present invention, in which a float body of a float is displaced to a minimum position. FIG. 1 is a vertical cross-sectional side view showing an example of the configuration of a tank according to an embodiment of the present invention, in which a float body of a float is displaced to a maximum position. FIG. 13 is a schematic diagram showing an example of detection of the remaining amount of a laundry treatment agent in a tank according to the present embodiment; FIG. 13 is a diagram showing an example of the configuration of a magnet according to a modified example of the present embodiment; FIG. 13 is a schematic diagram showing an example of how a magnet is attached to a rotation shaft of a float according to a modified example of the embodiment; FIG. 13 is a vertical cross-sectional side view illustrating a schematic configuration example of a portion of a tank according to a modified example of the present embodiment. FIG. 1 is a vertical cross-sectional side view (part 1) illustrating a schematic configuration example of a tank according to a modified example of the present embodiment; FIG. 2 is a longitudinal sectional side view (part 2) illustrating a schematic configuration example of a tank according to a modified example of the present embodiment; FIG. 13 is a vertical cross-sectional side view showing an example of the configuration of a drawer case and a water injection case according to a modified example of the embodiment, in which the drawer case is housed inside the water injection case.

One embodiment of a clothing treatment device will be described below with reference to the drawings. The washing machine 1 illustrated in FIG. 1 is an example of a clothing treatment device capable of subjecting clothing to a predetermined treatment, in this case at least a washing treatment, a rinsing treatment, and a spin-drying treatment. The washing machine 1 is a so-called drum-type washing machine in which the central axis of rotation of the rotating tub extends horizontally or in a direction inclined relative to the horizontal.

The washing machine 1 is provided with a washing tub 3 for washing clothes inside a rectangular box-shaped housing 2 that forms the outer shell of the washing machine 1. The washing tub 3 is an example of a clothes treatment tub, and is configured with a cylindrical water tub with a bottom and a rotatable cylindrical drum with a bottom. The peripheral wall of the drum is provided with a number of small holes, and the inner peripheral surface of the drum is provided with a baffle for stirring up the clothes. The front opening of the washing tub 3 can be opened and closed by a door 5 provided on the front of the housing 2. By opening the door 5, a user can put clothes in and take them out of the washing tub 3 through the front opening of the washing tub 3.

The washing machine 1 also includes a water supply section 4 for supplying water into the washing tub 3, and a drainage section (not shown) for draining the water in the washing tub 3 to the outside of the machine. The water supply section 4 includes a water supply valve 10 and the like in the middle of a water supply path that extends from a water source (not shown), such as a water main, to the washing tub 3. The drainage section also includes a drainage valve and the like in the middle of a drainage path that extends from the bottom of the washing tub 3 to the outside of the machine.

As shown in FIG. 2, the water supply unit 4 is configured to include a water supply valve 10, an automatic input unit 11, a water injection case 12, and the like, along a water supply path extending from a water source (not shown) to the cleaning tank 3. The inlet of the water supply valve 10 is connected to a water source (not shown), such as a water supply. The water supply valve 10 also has at least two outlets, the first of which is connected to the cleaning tank 3 via an automatic input path 13a, and the second of which is connected to the water injection case 12 via a manual input path 13b. The outlet of the water injection case 12 is connected to the cleaning tank 3 via a water supply hose 14.

The automatic dispenser 11 includes a detergent tank 15 and a fabric softener tank 16. The detergent tank 15 and the fabric softener tank 16 are each provided so as to be detachable from the water supply unit 4. In this case, the detergent tank 15 and the fabric softener tank 16 are adapted to be detachably mounted in a tank housing portion 4a provided in the water supply unit 4. The tank housing portion 4a is provided, for example, integrally with the water injection case 12.

The detergent tank 15 can store enough laundry treatment agent for multiple runs, in this case detergent for washing the clothes in the washing tub 3. The fabric softener tank 16 can store enough laundry treatment agent for multiple runs, in this case fabric softener for softening the clothes in the washing tub 3.

The detergent tank 15 is connected to the automatic supply path 13a via the detergent metering pump 18. The detergent metering pump 18 is configured to draw in and send out liquid by driving a piston with an actuator such as a motor or a solenoid. The detergent metering pump 18 draws in a predetermined amount of detergent from the detergent tank 15, in this case the amount used for one operation, and sends out the drawn-in detergent into the automatic supply path 13a. The detergent sent into the automatic supply path 13a is then supplied into the washing tank 3 together with water supplied from the water supply valve 10. This causes the detergent to be automatically added from the detergent tank 15 to the washing tank 3. The detergent metering pump 18 is not limited to one that draws in liquid, and may be one that pushes out liquid, for example.

The softener tank 16 is connected to the automatic supply path 13a via a softener metering pump 19. The softener metering pump 19 is configured to draw in and send out liquid by driving a piston with an actuator such as a motor or a solenoid. The softener metering pump 19 draws in a predetermined amount of softener from the softener tank 16, in this case the amount used for one operation, and sends out the drawn-in softener into the automatic supply path 13a. The softener sent into the automatic supply path 13a is then supplied into the washing tank 3 together with water supplied from the water supply valve 10. As a result, the softener is automatically added from the softener tank 16 to the washing tank 3. The softener metering pump 19 is not limited to one that draws in liquid, and may be one that pushes out liquid, for example.

In addition, a manual input case (not shown) is housed retractably within the water injection case 12. The manual input case is provided with a manual detergent input section into which the user manually inputs detergent, and a manual fabric softener input section into which the user manually inputs fabric softener. The detergent input into the manual detergent input section, or the fabric softener input into the manual fabric softener input section, is supplied into the washing tub 3 via the water supply hose 14 together with water injected into the water injection case 12 from the water supply valve 10 via the manual input path 13b.

The washing machine 1 configured as described above further includes a display operation panel 40, as shown in FIG. 1. The display operation panel 40 is an example of a display operation unit, and in this case, is provided at the top of the front of the housing 2 of the washing machine 1, more specifically, at the top of the door 5. The display operation panel 40 includes, for example, a liquid crystal display, and displays various screens including various information related to the operation of the washing machine 1. The display operation panel 40 also displays various screens including operation keys, so-called touch keys, for receiving various operations related to the operation of the washing machine 1. The user can perform various operations related to the operation of the washing machine 1 by touching the various operation keys included in the screens displayed by the display operation panel 40.

The touch panel constituting the display operation panel 40 may be, for example, a capacitive touch panel that uses a sensor to detect changes in capacitance that occur when the user's finger touches it. The touch panel constituting the display operation panel 40 is not limited to a capacitive touch panel, and various types of touch panels, such as a resistive film touch panel, may be used. The display operation panel 40 is not limited to a liquid crystal display, and various types of display devices, such as an organic EL display, may be used.

As shown in FIG. 3, the display of various screens on the display operation panel 40 is controlled by the control device 50. The control device 50 is an example of a control unit. The control device 50 is mainly composed of, for example, a microcomputer, and controls the overall operation of the washing machine 1 based on a control program and various setting information. In addition to the display operation panel 40, the control device 50 is connected to various drive system components such as the above-mentioned water supply valve 10, detergent metering pump 18, fabric softener metering pump 19, a drain valve (not shown), and a drum rotation motor (not shown). In addition, the control device 50 is connected to a linear hall element 105, which will be described in detail later. The control device 50 is configured to display various operation-related information related to operation on the display operation panel 40.

The washing machine 1 according to this embodiment is ingeniously designed to precisely detect the amount of detergent remaining in the detergent tank 15 and the amount of fabric softener remaining in the fabric softener tank 16. This will be described in more detail below. Note that the detergent tank 15 and the fabric softener tank 16 have the same configuration for detecting the amount of laundry treatment agent stored therein. Therefore, for the sake of convenience, an example configuration of the detergent tank 15 will be described below, and the fabric softener tank 16 will not be described as it has the same configuration as the detergent tank 15.

As shown in FIG. 4, the detergent tank 15 has an outer shell formed by a case 100 that is a substantially rectangular box. A space is formed inside the case 100, and the laundry treatment agent can be stored inside. A supply port 100a is provided at the top of the case 100 for supplying the laundry treatment agent into the case 100. The supply port 100a can be opened and closed by a lid 100b.

The detergent tank 15 also includes a float 101 inside the case 100. The float 101 is supported in the case 100 so that it can rotate up and down around a rotation shaft 102. The float 101 also includes a float body 103 at the free end opposite the rotation shaft 102. The float body 103 is connected to the rotation shaft 102 via a long connecting part 103a. The float body 103 is hollow inside and floats on the surface of the laundry treatment agent stored in the case 100, in this case the detergent. Therefore, the height position of the float body 103 of the float 101 changes depending on the remaining amount of laundry treatment agent stored in the case 100.

The float 101 is configured so that it does not have a magnet inside the float body 103. The float 101 is configured so that it has a circular magnet 104 on its rotation shaft 102. In this case, the magnet 104 is configured to be attached externally to the rotation shaft 102 of the float 101. The magnet 104 is also circular, and is arranged so that its axial direction coincides with the axial direction of the rotation shaft 102. The magnet 104 is magnetized in the radial direction with respect to the rotation shaft 102, that is, in a direction perpendicular to the axial direction of the rotation shaft 102. In this case, the magnet 104 is magnetized with two poles, one N pole 104N and one S pole 104S.

The magnet 104 configured in this manner rotates around its axis in response to the displacement of the float body 103 of the float 101 within the case 100, in other words, in response to the rotation of the rotation shaft 102. Therefore, the direction of the magnetic field of the magnet 104 changes in response to the displacement of the float body 103 of the float 101, that is, the state of the magnet 104, in this case the direction of the magnetic field, changes in response to the displacement of the float body 103 of the float 101 in response to the remaining amount of clothing treatment agent in the case 100. The magnet 104 exhibiting this type of behavior functions as an example of a detectable part.

The case 100 is also provided with a linear hall element 105. The linear hall element 105 is provided in a portion of the case 100 facing the rotation axis 102 of the float 101. The linear hall element 105 is not configured to switch between an on state and an off state in response to the approach and separation of the magnet, but is configured to be able to continuously detect the state of the magnet 104 that changes in response to the displacement of the float body 103 of the float 101 as described above, in this case, the change in the direction of the magnetic field. This linear hall element 105 functions as an example of a detection unit. In this case, the linear hall element 105 is configured such that the lower surface facing the rotation axis 102 of the float 101, in other words the magnet 104, serves as a detection surface 105a that detects the change in the direction of the magnetic field of the magnet 104.

As illustrated in Figs. 4 and 5, the float 101 is configured to be displaceable, in this case rotatable, between a maximum position M1 and a minimum position M2 within the case portion 100. The maximum position M1 is the displacement position at which the float body portion 103 of the float 101 is located when a predetermined maximum amount of the clothing treatment agent is stored within the case portion 100. On the other hand, the minimum position M2 is the displacement position at which the float body portion 103 of the float 101 is located when a predetermined minimum amount of the clothing treatment agent is stored within the case portion 100. The predetermined maximum amount and minimum amount can be appropriately changed depending on, for example, the shape and size of the case portion 100, the type of clothing treatment agent stored, etc.

For the float 101 configured in this manner, the magnet 104 is configured so that when the float body 103 of the float 101 is displaced to the minimum position M2, the boundary between the N pole 104N and the S pole 104S is parallel to the detection surface 105a of the linear hall element 105, as shown in FIG. 4. Note that the magnet 104 may be configured so that when the float body 103 of the float 101 is displaced to the maximum position M1, the boundary between the N pole 104N and the S pole 104S is parallel to the detection surface 105a of the linear hall element 105.

In the washing machine 1 configured as above, as illustrated in FIG. 6, the control device 50 can determine the change in the direction of the magnetic field of the magnet 104, in other words, the amount of rotation of the float 101, based on the detection result by the linear Hall element 105, and can thus determine the remaining amount of detergent in the detergent tank 15. That is, in the example shown in FIG. 6, when the output value of the linear Hall element 105 is Na, the control device 50 determines that the remaining amount of the laundry treatment agent in the case part 100 is a small level, when the output value of the linear Hall element 105 is Nb, which is lower than Na, the control device 50 determines that the remaining amount of the laundry treatment agent in the case part 100 is a medium level, and when the output value of the linear Hall element 105 is Nc, which is lower than Nb, the control device 50 determines that the remaining amount of the laundry treatment agent in the case part 100 is a large level. In this way, the control device 50 determines that the lower the output value of the linear Hall element 105, the greater the remaining amount of the laundry treatment agent in the case part 100.

In the example shown in FIG. 6, the remaining amount of clothing treatment agent in the case unit 100 is determined in three stages: small, medium, and large. However, as described above, the linear Hall element 105 is configured to be able to continuously detect changes in the direction of the magnetic field of the magnet 104. Therefore, the control device 50 can continuously identify changes in the amount of clothing remaining in the case unit 100 based on the output value of the linear Hall element 105. Therefore, the control device 50 can determine the remaining amount of clothing treatment agent in the case unit 100 in multiple stages of three or more.

According to the washing machine 1 of the present embodiment described above, the tanks 15, 16 are provided with a case 100 forming the outer shell of the tanks 15, 16, a float 101 whose float body 103 is displaced according to the remaining amount of the clothing treatment agent stored in the case 100, a magnet 104 provided in the float 101 and whose state changes as the float body 103 of the float 101 is displaced according to the remaining amount of the clothing treatment agent in the case 100, and a linear Hall element 105 provided in the case 100 for detecting the state of the magnet 104. According to this configuration, the state of the magnet 104, which changes according to the remaining amount of the clothing treatment agent in the tanks 15, 16, is detected by the linear Hall element 105, and the remaining amount of the clothing treatment agent in the tanks 15, 16 can be detected in more detail than in the conventional configuration in which the detection is simply based on the on/off state of the Hall IC.

In addition, according to the washing machine 1, the magnet 104 is provided on the rotating shaft 102 that rotatably supports the float 101 in the case part 100. With this configuration, the rotation of the float 101 can be directly reflected in the magnet 104, and the amount of rotation of the float 101, in other words, the remaining amount of the laundry treatment agent in the case part 100, can be detected with greater accuracy. In addition, with the configuration in which the magnet 104 is provided on the rotating shaft 102 of the float 101, that is, the configuration in which the magnet 104 is not provided in the float main body part 103, the float main body part 103 can be made smaller than the conventional configuration in which the magnet is provided in the float main body part. And by making the float main body part 103 smaller, the capacity of the tanks 15, 16, that is, the amount of laundry treatment agent that can be stored therein, can be increased.

In addition, in the washing machine 1, the magnet 104 is magnetized with two poles in the radial direction relative to the rotation axis 102 of the float 101. With this configuration, the direction of the magnetic field of the magnet 104 relative to the linear hall element 105 can be reliably changed as the float 101 rotates, and the amount of rotation of the float 101, in other words, the remaining amount of laundry treatment agent in the case 100, can be detected with greater accuracy.

In addition, in the washing machine 1, the magnet 104 is configured so that when the float body 103 of the float 101 is displaced to the minimum position M2, the boundary between the north pole 104N and the south pole 104S is parallel to the detection surface 105a of the linear hall element 105. With this configuration, when the remaining amount of laundry treatment agent in the tanks 15, 16 is a predetermined minimum amount, the output value of the linear hall element 105 becomes a maximum value. Therefore, the remaining amount of laundry treatment agent in the tanks 15, 16 can be detected with high accuracy by using the output value of the linear hall element 105 at this time as a reference.

In addition, according to the washing machine 1, the magnet 104 may be configured so that when the float body 103 of the float 101 is displaced to the maximum position M1, the boundary between the north pole 104N and the south pole 104S is parallel to the detection surface 105a of the linear hall element 105. With this configuration, when the remaining amount of the laundry treatment agent in the tanks 15, 16 is a predetermined maximum amount, the output value of the linear hall element 105 becomes a maximum value. Therefore, the remaining amount of the laundry treatment agent in the tanks 15, 16 can be detected with high accuracy by using the output value of the linear hall element 105 at this time as a reference.

In addition, in the washing machine 1, the linear hall element 105 can detect the change in state of the magnet 104 accompanying the rotation of the float 101 not only as a binary on/off value, but also continuously as the float body 103 of the float 101 moves between the maximum position M1 and the minimum position M2. This configuration allows the remaining amount of laundry treatment agent in the tanks 15 and 16 to be detected in even greater detail.

This embodiment is not limited to the above-described embodiment, and various modifications and extensions can be made without departing from the spirit of the invention.

For example, as shown in FIG. 7, the magnet 104 is not limited to being magnetized with two poles, but may be magnetized with, for example, four poles. Although not shown in detail, the magnet 104 may be magnetized with six or more poles. Increasing the number of magnetized poles of the magnet 104 in this way makes it possible to detect the amount of rotation of the float 101, in other words, the remaining amount of clothing treatment agent in the tanks 15 and 16, in more detail.

Moreover, various modes can be applied for the attachment of the magnet 104 to the rotating shaft 102 of the float 101. That is, as exemplified in pattern A of FIG. 8, the magnet 104 magnetized to two poles may be attached to the peripheral surface of the rotating shaft 102 of the float 101, or as exemplified in pattern B, the magnet 104 magnetized to four poles may be attached to the peripheral surface of the rotating shaft 102 of the float 101. As exemplified in pattern A, the magnet 104 may be attached to a part of the peripheral surface of the rotating shaft 102, or as exemplified in pattern B, the magnet 104 may be attached over the entire peripheral surface of the rotating shaft 102. Although detailed illustration is omitted, the attachment mode of the magnet 104 may be other modes.

9, the case 100 may be configured to include a semicircular storage section 100c in which the rotation shaft 102 of the float 101 is stored. With this configuration, the rotation shaft 102 can be positioned as high as possible in the case 100, and the connecting section 103a of the float 101 can be lengthened. This ensures a large range of rotation of the float 101 in the case 100, and allows the remaining amount of clothing treatment agent in the tanks 15, 16 to be detected over a wider range. The storage section 100c protruding from the surface of the case 100 can be used to position the tanks 15, 16 in the tank storage section 4a, or as a protrusion to detect that the tanks 15, 16 are properly installed in a predetermined installation position in the tank storage section 4a.

Also, as shown in FIG. 10, the magnet 104 may be provided on the connecting portion 103a of the float 101. In this case, the linear Hall element 105 may be provided on the side of the case portion 100.

11, the washing machine 1 may be configured to include a rotation transmission mechanism 200 that transmits the rotation of the rotation shaft 102 of the float 101 to the magnet 104. The rotation transmission mechanism 200 includes a float side rotation transmission gear 201 that is integrally provided on the rotation shaft 102 of the float 101, and a magnet side rotation transmission gear 202 that is integrally provided with the magnet 104. In the rotation transmission mechanism 200 configured in this manner, the float side rotation transmission gear 201 rotates the magnet side rotation transmission gear 202 as the rotation shaft 102 of the float 101 rotates. This allows the rotation of the float 101 to be reflected in the rotation of the magnet 104, and the remaining amount of the laundry treatment agent in the tanks 15 and 16 to be detected in detail. Note that as long as the mechanism is capable of reflecting the rotation of the float 101 in the rotation of the magnet 104, it is possible to apply mechanisms of various configurations other than the rotation transmission mechanism 200.

The position of the linear Hall element 105 in the case 100 can be changed as appropriate. That is, the linear Hall element 105 may be provided, for example, on the side of the case 100. The magnet 104 may be integrally molded with the float 101 or may be enclosed in the float 101, rather than being attached externally to the float 101. The float body 103 of the float 101 may be composed of two members: a base with an open interior, and a cover that closes the opening of the base. With this configuration, the cover is attached to the base by a method such as welding, thereby reliably creating the float body 103 that functions as a so-called "float."

The washing machine 1 may be configured without the linear Hall element 105 in the case 100. That is, for example, in the configuration example shown in FIG. 12, the water injection case 312 provided in the upper part of the housing 2 of the washing machine 1 is a long, rectangular box with an open front, and is provided along the front-to-rear direction of the washing machine 1. Inside the water injection case 312, the drawer case 313 is accommodated so as to be removable in the front-to-rear direction. The drawer case 313 is a long, rectangular box with an open top. Inside the drawer case 313, the tanks 15 and 16 are detachably accommodated. The pumps 18 and 19 are provided at the rear of the water injection case 312. The drawer case 313 to which the tanks 15 and 16 are attached is pushed into the water injection case 312, so that the liquid suction ports of the pumps 18 and 19 are connected to the liquid outlet ports of the tanks 15 and 16.

In this configuration example, the linear Hall element 105 is provided on the lower part of the upper surface of the water injection case 312, not on the case part 100 of the tanks 15, 16. The linear Hall element 105 is provided so as to be located above the magnet 104 in the case part 100 when the drawer case 313 to which the tanks 15, 16 are attached is pushed into the water injection case 312. The linear Hall element 105 may be located directly above the magnet 104, or may be slightly shifted horizontally from directly above it. As described above, in this embodiment, the linear Hall element 105 is not limited to being provided on the case part 100 of the tanks 15, 16, but may be provided in other parts.

The tanks are not limited to the detergent tank 15 and fabric softener tank 16, but may be any tank that stores various types of treatment agents for treating clothes, such as a deodorant tank, a disinfectant tank, or a bleach tank. The tanks in the water supply unit 4 may store the same type of treatment agent, or may store different types of treatment agents. The number of tanks in the water supply unit 4 is not limited to two, but may be one, or may be three or more. The pump is not limited to one that sucks liquid, but may be one that pushes out liquid, for example.

This embodiment can also be applied to so-called vertical axis type washing machines, in which the central axis of rotation of the spin tub extends vertically. This embodiment can also be applied to washing machines with a drying function. This embodiment can also be applied to washing machines without a drying function. This embodiment can also be applied to various clothing processing devices, as long as they perform some kind of processing on clothing, such as deodorizing, removing odors, and disinfecting clothing.

Although one embodiment of the present invention has been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the gist of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the scope of the invention and its equivalents described in the claims.

In the drawing, 1 is a washing machine (clothing treatment device), 3 is a washing tub (clothing treatment tub), 11 is an automatic dispenser (dispensing section), 15 is a detergent tank (tank), 16 is a fabric softener tank (tank), 100 is a case, 101 is a float, 102 is a rotating shaft, 104 is a magnet (detected section), and 105 is a linear Hall element (detection section).

Claims (4)

A clothes treatment tank for storing clothes;
A tank for storing a clothing treatment agent for treating clothing;
An injection section for injecting the laundry treatment agent from the tank into the laundry treatment tub;
Equipped with
The tank is
A case portion that constitutes an outer shell of the tank;
a float that is displaced according to the remaining amount of the laundry treatment agent stored in the case;
a detection target provided on the float and changing its state in response to the displacement of the float;
A detection unit that detects a state of the detected part;
Equipped with
The float is
a rotation shaft that rotatably supports the float within the case portion;
A float body portion that rotates around the rotation axis;
Equipped with
The detected portion is provided closer to the rotation shaft than the float body,
A clothing processing device in which the rotation radius of the float main body is longer than the rotation radius of the detection part. A clothes treatment tank for storing clothes;
A tank for storing a clothing treatment agent for treating clothing;
An injection section for injecting the laundry treatment agent from the tank into the laundry treatment tub;
Equipped with
The tank is
A case portion that constitutes an outer shell of the tank;
a float that is displaced according to the remaining amount of the laundry treatment agent stored in the case;
a detection target provided on the float and changing its state in response to the displacement of the float;
A detection unit that detects a state of the detected part;
Equipped with
The float is
a rotation shaft that rotatably supports the float within the case portion;
A float body portion that rotates around the rotation axis;
Equipped with
The detected portion is provided closer to the rotation shaft than the float body,
A clothing processing device in which the float main body and the detectable part rotate in conjunction with each other, and during this rotation, the distance by which the float main body rotates is longer than the distance by which the detectable part rotates. The clothing processing device according to claim 1 or 2, in which the float body and the detected part have the same rotation center. The clothing processing device according to claim 1 or 2, wherein the detected part rotates in association with the rotation of the float main body part.

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