JP5382684B2 - Automatic water feeder - Google Patents

Description

  The present invention relates to an automatic water supply machine for supplying purified water to a container and selling it, and more particularly to an automatic water supply apparatus having an improved support structure for a container whose weight increases due to filling with water.

  In today's consumer life, there is an increasing tendency to place importance on health and safety, and high water quality is required for water used every day. When used simply as drinking water, soft drinks such as mineral water are packed in plastic bottles and sold, but when used in large quantities at home, such as cooking and rice sharpening water, container-type water is used. Vending machines are being used. A container-type water vending machine generates purified water from raw water such as tap water using a water treatment device, and supplies and sells this purified water to containers brought by users.

  With regard to water vending machines, under the standards of the Ministry of Health, Labor and Welfare, “soft drinks” defined by the law are provided to consumers with equipment that conforms to the Food Sanitation Law. In addition, as for containers for bringing back soft drinks, containers conforming to the same law are used, for example, the container constituent materials do not elute from the container body. Such a water vending machine is economical because the container can be reused (reused), and is excellent from the viewpoint of environmental harmony. For this reason, in recent years, the demand for water vending machines has been increasing, and various techniques have been proposed.

  Such a container-type water vending machine is provided with a water supply box as a space for storing a container brought by a user and supplying purified water to the container. Inside this water supply box, a holding part for holding the container is provided, and a door is provided at the front part. The user opens the door and sets the container at a position indicated by an explanatory diagram attached to the front surface of the device or the like, a mark displayed on the holding unit, or the like. After the set container is cleaned, purified water is supplied.

  As described above, various devices have been proposed as devices for cleaning containers before water supply in a water supply box in a vending machine. For example, an apparatus for cleaning by supplying cleaning water into an empty container in a water supply box and rotating the container has been proposed (see Patent Documents 1 and 2). In addition, a cleaning device has been proposed in which a cleaning water supply nozzle different from the water supply nozzle is provided in the lower portion of the water supply box, and the cleaning water is ejected from the supply nozzle to the water supply port of the inverted container. (See Patent Documents 3 to 5).

Japanese Patent Laid-Open No. 10-40459 JP 2007-323374 A JP 2005-196775 A JP 2004-318725 A JP 2007-111468 A

  By the way, as mentioned above, in the water vending machine which rotates a container for washing | cleaning, the holding | maintenance part holding a container within the water supply box is attached to the rotating shaft rotated by a motor. Since the empty container brought by the user to receive water supply is light, even if the user sets the empty container on the holding part, the load on the rotating shaft is small.

  However, the container that has finished supplying water in the water supply box is very heavy because it is filled with a large amount of water. Therefore, a large load is applied to the rotating shaft that supports the container. Since the rotating shaft is weak to the force applied in the shear direction, if such a load is frequently applied, the accuracy and life of the motor may be affected.

  In addition, repeated rapid load changes such as an increase in load due to water supply to the container and release from the load due to removal of the container may lead to metal fatigue of the shaft and its surrounding members.

  The present invention has been proposed in order to solve such problems of the prior art, and an object of the present invention is to provide an automatic water supply machine that can reduce the load on the shaft that supports the container when water is supplied to the container. Is to provide.

In order to achieve the above object, the invention of claim 1 is an automatic water supply machine for supplying purified water to a container, and is a water supply box provided to accommodate the container for supplying purified water to the container. A purified water supply unit that supplies purified water to the water supply port of the container, a holding unit that is rotatably provided around the shaft in the water supply box, and that holds the container, and a drive source that rotates the shaft; has, the holding portion weight by the container supporting, according to the weight applied from the container, have a supporting portion approaching and moving away from the interior of the water supply box, that the purified water to the said container is supplied According to the increase of the above, the support part comes into contact with the inside of the water supply box .

  In the invention of claim 1 as described above, when the container is supplied with purified water and becomes heavy, the support portion contacts the inside of the water supply box. For this reason, the weight of the container is distributed to the water supply box, and the burden on the shaft is greatly reduced.

According to a second aspect of the present invention, in the automatic water feeder of the first aspect, the holding portion includes a base portion to which the shaft is connected, and the support portion is separated from the interior of the water supply box, It is provided in the base | substrate part so that it can displace between the contact positions which contact | connect the inside of the said water supply box.
In the invention of claim 2 as described above, the load applied to the shaft can be reduced by a simple configuration of the supporting portion that is displaced.

According to a third aspect of the present invention, in the water vending machine according to the second aspect, the support portion is attached to the base portion via an elastic member.
In the invention of claim 3 as described above, the support portion can be easily returned to the separated position by the elastic member.

According to a fourth aspect of the present invention, in the water vending machine according to the second aspect, the support portion is provided so as to be movable up and down with respect to the base portion, and an urging member for urging the support portion to the separated position is provided. It is characterized by being.
In the invention according to claim 4 as described above, in the water vending machine according to claim 2, since the support portion moves between the separation position and the abutment position by raising and lowering, deformation of the support portion itself is prevented. The

According to a fifth aspect of the present invention, in the automatic water feeder of the first aspect, the holding portion is provided so as to be movable with respect to the shaft in accordance with a weight applied from the container.
In the invention of claim 5 as described above, when the container receives a supply of purified water and becomes heavy, the holding part moves, so that the support part comes into contact with the inside of the water supply box. For this reason, the burden concerning a shaft is further reduced.

  As described above, according to the present invention, it is possible to provide an automatic water supply machine that can reduce the load on the shaft that holds the water supply box when water is supplied to the container.

Next, the best mode for carrying out the present invention (hereinafter referred to as “embodiment”) will be specifically described with reference to FIGS.
[Configuration of the embodiment]
The configuration of the present embodiment will be described with reference to FIGS. The present embodiment is a container-type water vending machine that employs a reverse osmosis membrane system. 1 is a front view, FIG. 2 is a perspective front view, FIGS. 3 to 5 are perspective side views, and FIG. 6 is a side view of a support portion.

  First, as shown in FIG.1 and FIG.2, the water supply box 3 for accommodating the bottle-shaped container 2 is provided in the center part of the water vending machine 1. FIG. At the front part of the water supply box 3, an outlet 6 for taking in and out the container 2 is provided. A water supply door 5 that can be freely opened and closed is attached to the outlet 6. As viewed from the front, the water supply door 5 has a left edge attached to the front of the water vending machine 1 with a hinge, and a handle 5a is fixed to the right edge. The user opens and closes the water supply door 5 with the handle 5a.

  Inside the water supply box 3, as shown in FIGS. 2-5, the water supply nozzle 12 (purified water supply part) is arrange | positioned. The water supply nozzle 12 is connected to a water purification device or the like (not shown) using a reverse osmosis membrane, and is configured so that an appropriate amount of purified water is supplied to the container 2 by opening and closing an automatically controlled valve or the like. Has been. Further, in the water supply box 3, a holding unit 30 that holds the upper, lower, left, and right of the container 2 to be set is provided. The user pushes the container 2 in accordance with the holding unit 30 so that the water supply port of the container 2 is positioned at the lower part of the water supply nozzle 12.

  As shown in FIG. 3, the holding part 30 includes a base part 31, an arm part 32, a pressing part 33, and a support part 34. The base portion 31 is a plate disposed in a vertical direction at a position in contact with the back portion of the container 2 in the back of the water supply box 3. A motor 7 is fixed behind the water supply box 3, and a rotating shaft 71 of the motor 7 passes through the back surface of the water supply box 3 and is connected to the base portion 31. Thus, the base portion 31 is provided to be rotatable around the rotation shaft 71 in accordance with the operation of the motor 7. Further, a horizontal portion 31 a bent at a right angle to the rear is provided at the lower end of the base portion 31.

  The arm portion 32 is a pair of left and right members that hold the container 2 from both sides. The arm portion 32 is obtained by fixing substantially U-shaped pipes to the left and right of the base portion 31, and the front thereof extends to the left and right so that the container 2 can be easily inserted. The holding portion 33 is a member that supports the shoulder portion of the container 2. The pressing portion 33 is a substantially concave-shaped pipe fixed to the upper portion of the base portion 31, and the base portion of the water supply port of the container 2 is inserted into the recessed portion.

  The support part 34 is a member that supports the bottom of the container 2. This support part 34 is a plate provided so as to protrude forward from the lower part of the base part 31, a rear surface part 34 a whose rear end is bent upward, a flat part 34 b on which the bottom of the container 2 rides in the middle, and a front end Is a front portion 34c bent downward. Further, a step 34d is provided near the front surface 34c in the flat surface 34b.

  The rear surface portion 34a is bent at an angle X (for example, 85 °) smaller than a right angle with respect to the flat surface portion 34b. The bottom surface of the flat portion 34 b and the bottom surface of the horizontal portion 31 a are attached via a spring hinge 8. The spring hinge 8 rotatably connects the support portion 34 to the base portion 31 and urges the support portion 34 upward by a spring. Thereby, in the initial state, the back surface of the rear surface portion 34a is in contact with the front surface of the base portion 31, and the flat surface portion 34b has a gradient (for example, 5 °) in which the front is higher than the rear. In the initial state, a gap Y (for example, several mm) is formed between the lower end of the front surface portion 34 c and the bottom surface of the water supply box 3.

  Further, the bottom surface portion 20 of the water supply box 3 is provided with a cleaning nozzle 9 (cleaning water supply portion) at a position facing the water supply port of the inverted container 2 in a non-contact manner. The cleaning nozzle 9 is connected to a tap water supply path, and tap water is ejected in response to opening and closing of electromagnetic valves controlled by a switch operation or the like. Although not shown, a part of the bottom surface portion 20 has a mesh shape so that smooth drainage is possible. Further, the bottom surface portion 20 is a counter-shaped base plate 22 at a portion protruding to the outside.

[Operation of the embodiment]
The present embodiment having the above configuration can be used as follows. That is, the user removes the cap of the container 2 and opens the water supply door 5 by pulling the handle portion 5a toward the front side, and matches the holding portion 30 in the water supply box 3 as shown in FIGS. And push the container 2 back. At this time, since the empty container 2 is light, as shown in FIG. 6A, the flat part 34b of the support part 34 supports the container 2 while maintaining the gradient, and the lower end of the front part 34c is a water supply box. 3 is not in contact with the bottom surface portion 20.

  And when a user closes the water supply door 5, as shown in FIG. 4, the motor 7 will act | operate and the holding | maintenance part 30 will rotate 180 degrees. As a result, the container 2 is turned upside down, and its water supply port comes directly above the washing nozzle 9. In this state, tap water for cleaning is ejected from the cleaning nozzle 9 and the container 2 is cleaned.

  Next, the motor 7 is operated, and the holding unit 30 is rotated by 180 °. Thereby, the container 2 returns to the original posture, and the water supply port comes directly under the water supply nozzle 12. Then, after the purified water is supplied from the water supply nozzle 12 to the water supply port of the container 2 and the container 2 is filled with a predetermined amount of purified water, the water supply is stopped.

  Since the weight of the container 2 increases according to such water supply, the support portion 34 rotates downward against the urging force of the spring of the spring hinge 8, and as shown in FIGS. 5 and 6B, The lower end of the front surface portion 34 c comes into contact with the bottom surface portion 20 of the water supply box 3. When the water supply is completed, the flat surface portion 34b of the support portion 34 is horizontal or has a gradient with the front slightly lower than the horizontal. Thereby, the load applied to the rotating shaft 71 of the motor 7 supporting the container 2 and the base portion 31 connected to the rotating shaft 71 is reduced. At this time, the stepped portion 34d prevents the container 2 from jumping out.

  Next, the user closes the water supply port of the container 2 with the cap, and then pulls the container 2 toward the front by holding the side surface or handle portion of the container 2. Then, the container 2 filled with purified water is pulled out from the water supply box 3. As described above, when the container 2 is pulled out, the support portion 34 is released from the weight of the container 2, so that the support portion 34 returns to the initial state by the biasing force of the spring of the spring hinge 8. As a result, a gap X is formed between the lower end of the front surface portion 34 c and the bottom surface portion 20 of the water supply box 3.

[Effect of the embodiment]
According to the present embodiment as described above, when the container 2 is filled with purified water and becomes a heavy object, the end portion of the front surface portion 34 c of the support portion 34 contacts the bottom surface portion 20 of the water supply box 3. Therefore, the load applied to the rotating shaft 71 of the motor 7 is distributed. Therefore, it is possible to reduce the occurrence of a failure due to a large force concentrated on the rotating shaft 71 and prevent the accuracy and life of the motor 7 from being lowered.

[Other Embodiments]
The present invention is not limited to the embodiment as described above. For example, the shapes of the members constituting the holding portion such as the base portion, the pressing portion, and the support portion are not limited to those exemplified in the above embodiment. Which one is plate-shaped, pipe-shaped, rod-shaped, etc. is free. The support portion 34 may be fixed to the base portion 31 and may be brought into and out of contact with the bottom surface portion 20 only by the elasticity of the support portion 34.

  For example, as shown in FIGS. 7A and 7B, the support portion 34 can be provided so as to be slidable up and down with respect to the base portion 31. In this case, the angle between the rear surface portion 34a and the flat surface portion 34b may be a right angle. However, in this embodiment, it is necessary to provide an urging means for holding the support portion 34 upward.

  For example, the slide movement is configured to be guided by a guide member (not shown) provided in the base portion 31. Examples of the guide member include various types such as a linear guide rail and side walls provided at positions corresponding to the left and right edges of the rear surface portion 34a. Any structure may be used.

  As the biasing means, for example, as shown in FIG. 8A, it is possible to provide an elastic member 10 such as a spring or a spring that lifts the support portion 34. Thereby, the rapid lowering of the support portion 34 at the time of water supply is alleviated and the return to the initial state is also smooth.

  In addition, since the biasing means should just be able to bias the support part 34 upward, the arrangement direction of the elastic member 10 is not ask | required. Therefore, if the direction of the wire, rope, etc. connecting the support portion 34 and the elastic member 10 is changed by the pulley, the elastic member 10 may be behind the base portion 31 (see FIG. 8B). The expansion / contraction direction of the elastic member 10 may be horizontal. In addition, for example, an automatic reel as an urging unit may be connected to the support portion 34 via a wire, a rope, or the like so that the reel can be wound with a spring force.

  Further, as shown in FIG. 9, a raised elastic body 11 may be provided on a part of the bottom surface portion 20 of the water supply box 3. Since the upper surface of the elastic body 11 is not in contact with the bottom surface of the rotating container 2 in the initial state (for example, urged upward as shown in FIG. 8), it does not interfere with the rotation (FIG. 9 (A)). When the water supply to the container 2 is started and the support part 34 slides downward, the bottom surface of the support part 34 comes into contact with the upper part of the elastic body 11 and starts to collapse flexibly as the weight of the container 2 increases (FIG. 9 (B )). As a result, the load applied to the rotating shaft 71 of the motor 7 and the base portion 31 connected to the rotating shaft 71 is further reduced. When the water supply is completed and the container 2 is taken out, the elastic body 11 is restored to its original shape.

  The shape and material of the elastic body 11 are not limited to specific ones. For example, a spherical shape, a partial spherical shape, a cylindrical shape, a prismatic shape, a conical shape, a rectangular shape, a saddle shape, and the like are conceivable. Examples of the material include rubber, gel, plastic, sponge and other resins, metal, wood, and the like. The arrangement position of the elastic body 11 may be a position that does not interfere with the cleaning nozzle 9 and may be one or more. A hole may be formed only in the portion of the cleaning nozzle 9.

  For example, as shown in FIG. 10, it is also possible to connect the support part 34 and the base | substrate part 31 through the connection member 13 with an N-shaped cross section as an elastic member. In such a case, since the connecting member 13 is deformed in the extending direction according to the weight of the container 2, the support portion 34 is lowered and moved forward. For this reason, when the water supply is completed, the container 2 comes out to the front and is in a state where it can be easily taken out. Since the connecting member 13 is required to be rigid and recoverable, an auxiliary plate 13a that opens and closes in a fan shape is attached as shown in FIGS. 11A and 11B so as not to exceed the elastic limit. It may be. As the material of the connecting member 13, a resin such as rubber or plastic, a metal, or the like can be considered.

  Further, for example, as shown in FIGS. 12 and 13, it is possible to provide a leg portion 34e protruding on the bottom surface of the flat portion 34b. FIG. 12 is a cross-sectional view of the leg portion at the L / N position from the axis of the spring hinge 8 when the length from the axis of the spring hinge 8 to the front end of the front surface portion 34c is L in the embodiment shown in FIG. In this example, 34e is provided. Here, as shown in FIG. 12A, in the standby state, the distance between the lower end of the leg portion 34e and the bottom surface portion 20 is set to be Y / N. Thereby, as shown in FIG. 12 (B), when purified water is supplied to the container 2, the lower end of the front surface portion 34 c and the lower end of the leg portion 34 e abut against the bottom surface portion 20. The load applied to the base portion 31 connected to is further reduced.

  FIG. 13 is an example in which a leg portion 34e is provided at the rear end of the flat portion 34b in the embodiment shown in FIG. Here, as shown in FIG. 13A, in the standby state, the distance between the lower end of the leg portion 34e and the bottom surface portion 30 is set to be Y. Accordingly, as shown in FIG. 13B, when purified water is supplied to the container 2, the lower end of the front surface portion 34 c and the lower end of the leg portion 34 e come into contact with the bottom surface portion 20. The load applied to the base portion 31 connected to is further reduced.

  Moreover, as shown in FIGS. 14-16, it is also possible to reduce the load by the square shaft part 72 and the bearing part 31b. The square shaft portion 72 is a rectangular parallelepiped member provided at the tip of the rotation shaft 71. The bearing portion 31 b is a substantially U-shaped (concave) member fixed to the back surface of the base portion 31. By inserting the angular shaft portion 72 into the bearing portion 31b, the holding portion 30 and the container 2 mounted thereon are also rotated along with the rotation of the rotating shaft 71. Therefore, when the motor 7 is operated and the holding unit 30 is rotated 180 °, the container 2 is turned upside down and the water supply port is directly above the cleaning nozzle 9, so that the cleaning nozzle 9 can clean the container 2. It becomes.

  Then, when the motor 7 is operated and the holding unit 30 is rotated by 180 °, the container 2 returns to the original posture, and the water supply port comes directly below the water supply nozzle 12. When purified water is supplied from the water supply nozzle 12 to the water supply port of the container 2, the weight of the container 2 increases, so that the bearing portion 31 b is displaced from the angular shaft portion 72 as shown in FIGS. 14 (B) and 15. The support portion 34 comes into contact with the bottom surface portion 20 by sliding downward. As a result, the load applied to the rotating shaft 71 of the motor 7 and the base portion 31 connected to the rotating shaft 71 is further reduced.

  When such a square shaft portion 72 and the bearing portion 31b are used, it is necessary to return the holding portion 30 lowered by the water supply upward for standby. As the structure for that, the structure shown in the above embodiment can be considered, but the following example is also applicable.

  That is, as shown in FIG. 17, a structure in which the magnets 14a and 14b are attached to the bottom surface of the angular shaft portion 72 and the inner surface of the bearing portion 31b is conceivable. In such a case, as shown in FIG. 17 (B), when water is supplied, the bearing 31b descends against the magnetic force, but when the container 2 is taken out, as shown in FIG. The bearing portion 31b rises and returns to the original position. Although the gap between the magnets 14a and 14b is shown large in FIG. 17, it may actually be about several mm.

  Moreover, as shown in FIG. 18, the structure which hold | maintains the bearing part 31b with the elastic member 15a to which the lifting tool 15 was provided in the square shaft part 72, and the suspension part 15 was attached can be considered. In such a case, as shown in FIG. 18 (B), at the time of water supply, the elastic member 15a extends and the bearing portion 31b descends. However, when the container 2 is taken out, as shown in FIG. Due to the restoring force of the member 15a, the bearing portion 31b rises and returns to the original position. Note that the material and shape of the elastic member 15a are also free as shown by the elastic body 11.

  Furthermore, as shown in FIG. 19, a structure in which a push-up member 16 such as a bumper or a cylinder is provided below the holding portion 30 is also conceivable. In this case, at the time of water supply, the bearing portion 31b is lowered against the urging force of the push-up member 16, but when the container 2 is taken out, the bearing portion 31b is raised by the urging force of the push-up member 16 to return to the original position. Return to. The urging force of the push-up member 16 may be obtained by any means such as an elastic body, an object by atmospheric pressure or hydraulic pressure, and the like. The above is an example of a structure for automatically returning the holding unit 30. However, a structure for manually returning the holding part 30 by using a lever or the like is also applicable.

  In addition, as shown in FIG. 20, when the angular shaft portion 72 and the bearing portion 31 b are formed longer in the sliding direction, a decrease in accuracy due to shaking at the time of sliding is suppressed. In this case, as described above, in FIG. 20, it is sufficient that the slide length H2 is about several mm, so that H1 is devised so as to be long. In addition, although the said square-axis part 72 and the bearing part 31b were square in cross section, the combination of the ellipse and U-shape without a corner | angular may be sufficient, for example.

  In addition, as shown in FIG. 21, the container 2 can be easily taken out by adjusting the height of the base plate 22 to the height of the support portion 30. In addition to a plurality of water supply nozzles 12 and cleaning nozzles 9, the shape may be variable, the shape may be changed to a different shape, or the position may be moved. The water supply nozzle 12 and the cleaning nozzle 9 may be a common nozzle. The direction of the container 2 at the time of washing and water supply is not limited to the above. At the time of cleaning, the container 2 may be rotated or swung around the rotation shaft 71.

  The rotating shaft 71 may be the shaft of the motor 7 (direct drive), but the power of the motor 7 may be indirectly transmitted by a gear mechanism, a belt, or the like. The water used for cleaning the container 2 may be more precise treated water than that exemplified in the above embodiment. You may perform the sterilization process by ultraviolet irradiation in any area | region of said container washing | cleaning, container conveyance, and water supply. Furthermore, the kind of water purifier, the money collection method, etc. are not limited to specific ones. It can also be applied to devices that supply purified water that is not intended for sale.

It is a front view of the container-type water vending machine to which the 1st Embodiment of this invention is applied. It is a see-through | perspective front view of embodiment of FIG. It is a see-through | perspective side view at the time of bottle installation of embodiment of FIG. It is a see-through | perspective side view at the time of the bottle washing | cleaning of embodiment of FIG. It is a see-through | perspective side view at the time of water supply of embodiment of FIG. It is a side view which shows the initial state (A) of the support part in the embodiment of FIG. 1, and the time of a fall (B). It is a side view which shows the initial state (A) of the support part in other embodiment of this invention, and the time of a fall (B). It is a side view which shows arrangement | positioning of the elastic member in embodiment of FIG. It is a side view which shows the initial state (A) of the support part in other embodiment of this invention, and the time of a fall (B). It is a side view which shows the initial state (A) of the support part in other embodiment of this invention, and the time of a fall (B). It is a side view which shows the initial state (A) of the connection member in embodiment of FIG. 10, and the time of expansion | extension (B). It is a side view which shows the initial state (A) of the support part in other embodiment of this invention, and the time of a fall (B). It is a side view which shows the initial state (A) of the support part in other embodiment of this invention, and the time of a fall (B). It is a front view which shows the initial state (A) of the bearing part in other embodiment of this invention, and the time of a fall (B). FIG. 15 is a perspective view of FIG. It is a front view which shows the holding | maintenance part which attached the bearing part of FIG. It is a front view which shows the initial state (A) of the bearing part using the magnet in other embodiment of this invention, and the time of a fall (B). It is a front view which shows the initial state (A) of the bearing part using the lifting tool in other embodiment of this invention, and the time of a fall (B). It is a see-through | perspective side view which shows the holding | maintenance part using the raising member in other embodiment of this invention. It is a perspective view which shows the bearing part in other embodiment of this invention. It is a see-through | perspective side view in other embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Water vending machine 2 ... Container 3 ... Water supply box 5 ... Water supply door 5a ... Handle part 6 ... Outlet 7 ... Motor 8 ... Spring hinge 9 ... Washing nozzle 10, 15a ... Elastic member 11 ... Elastic body 12 ... Water supply nozzle DESCRIPTION OF SYMBOLS 13 ... Connecting member 14a, 14b ... Magnet 15 ... Lifting tool 20 ... Bottom part 22 ... Base plate 30 ... Holding part 31 ... Base part 31a ... Horizontal part 32 ... Arm part 33 ... Pressing part 34 ... Supporting part 34a ... Rear surface part 34b ... Plane portion 34c ... Front portion 34d ... Step portion 34e ... Leg portion 71 ... Rotating shaft

Claims (5)

In an automatic water supply machine that supplies purified water to a container,
In order to supply purified water to the container, a water supply box provided to accommodate the container;
A purified water supply unit for supplying purified water to the water supply port of the container;
A holding portion that is rotatably provided around an axis in the water supply box and holds the container;
A drive source for rotating the shaft;
Have
The holding unit is configured to support the container, according to the weight applied from the container, have a supporting portion approaching and moving away from the interior of the water supply box,
The automatic water supply machine according to claim 1, wherein the support portion comes into contact with the inside of the water supply box in accordance with an increase in weight caused by supplying purified water to the container . The holding part has a base part to which the shaft is connected,
The said support part is provided in the base | substrate part so that it can displace between the space | interval position which leaves | separates from the inside of the said water supply box, and the contact position which contact | connects the inside of the said water supply box. Item 1. An automatic water feeder according to item 1.   The automatic water feeder according to claim 2, wherein the support part is attached to the base part via an elastic member. The support part is provided to be movable up and down with respect to the base part.
The automatic water feeder according to claim 2, further comprising an urging member that urges the support portion to a separated position.   The automatic water feeder according to claim 1, wherein the holding portion is provided to be movable with respect to the shaft in accordance with a weight applied from the container.

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