Dishwasher, dishwasher installation method, and water supply hose connection auxiliary parts

Abstract

To improve the convenience of connecting water supply hoses to piping. [Solution] The dishwasher 1 comprises a washing tank 2 for accommodating items to be washed 9, a water supply hose 3 for supplying washing water to the washing tank 2, a fastening component provided at the end of the water supply hose 3 for fastening the connection between the water supply hose 3 and the water supply pipe 18, and a cylindrical connecting auxiliary component for assisting the fastening by the fastening component 30. The connecting auxiliary component has a hollow portion that penetrates in the direction of the central axis, and openings are provided at both ends of the hollow portion in the direction of the central axis through which the water supply hose 3 can pass. The inner wall of the hollow portion is provided with a recessed shape that fits with the fastening component, and the connecting auxiliary component is configured to be detachable from the water supply hose 3.

Description

Technical Field

[0001] The present disclosure relates to a dishwasher, an installation method of the dishwasher, and a connection auxiliary component for a water supply hose.

Background Art

[0002] A dishwasher includes a water supply hose for supplying water for washing dishes into the machine, and the water supply hose is connected to the primary piping of a house and used. In Patent Document 1, as a technique for preventing water from leaking outside the machine even when the water supply hose is damaged due to aging or the like, a double-structured water supply hose covering the outside of the water supply hose is disclosed.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When installing a dishwasher, especially when connecting a water supply hose connected to a device such as a built-in type dishwasher to the primary piping, the piping space is narrow and it is difficult to secure a view, so it may be difficult to connect the water supply hose to the primary piping. If the water supply hose is not properly connected to the primary piping, there is a possibility of water leakage from the connection part, so a technique for properly connecting the water supply hose to the primary piping is required.

[0005] The present disclosure provides a technique for improving the convenience when connecting a water supply hose to a pipe.

Means for Solving the Problems

[0006] The dishwasher in this disclosure comprises a washing tank for accommodating items to be washed, a water supply hose for supplying washing water to the washing tank, a fastening component provided at the end of the water supply hose for fastening the connection between the water supply hose and a water supply pipe, and a cylindrical connecting auxiliary component for assisting the fastening by the fastening component. The connecting auxiliary component has a hollow portion that penetrates in the direction of the centroid axis. Openings are provided at both ends of the hollow portion in the direction of the centroid axis through which the water supply hose can pass, and recesses are provided on the inner wall of the hollow portion to fit with the fastening component, and the connecting auxiliary component is configured to be detachable from the water supply hose.

[0007] The method for installing a dishwasher in this disclosure is a method for installing the dishwasher described above, and includes the steps of: attaching a connecting auxiliary part to the water supply hose; fitting a recessed shape with a fastening part; tightening the fastening part by rotating the connecting auxiliary part; disengaging the recessed shape with the fastening part; and detaching the connecting auxiliary part from the water supply hose.

[0008] The water supply hose connection auxiliary component in this disclosure is a connection auxiliary component for assisting the connection between a water supply hose and a water supply pipe, and is configured in a cylindrical shape, having a hollow portion that penetrates in the direction of the concentric axis, with openings provided at both ends of the hollow portion in the direction of the concentric axis through which the water supply hose can pass, and the inner wall of the hollow portion is provided with a recessed shape that fits with a fastening component for fastening the connection to the water supply pipe provided at the tip of the water supply hose, and is configured to be detachable from the water supply hose. [Effects of the Invention]

[0009] According to this disclosure, it is possible to improve the convenience of connecting a water supply hose to a pipe. [Brief explanation of the drawing]

[0010] [Figure 1] Configuration diagram of a dishwasher according to Embodiment 1 of this disclosure [Figure 2] A schematic cross-sectional diagram showing the cross-section of the connection point between the water supply hose and the water supply pipe. [Figure 3]Cross-sectional view showing how the connecting auxiliary part is attached to the water supply hose. [Figure 4] A perspective view showing the state in which the first frame and the second frame, which constitute the connecting auxiliary part, are fitted together. [Figure 5] An exploded perspective view showing the first frame and the second frame, which constitute the connecting auxiliary part, in a separated state. [Figure 6] Diagram showing the structure of the second frame. [Figure 7] A perspective view showing the state in which the first frame and the second frame, which constitute the connecting auxiliary part, are fitted together. [Figure 8] An exploded perspective view showing the first frame and the second frame, which constitute the connecting auxiliary part, in a separated state. [Figure 9] Diagram showing the structure of the second frame. [Figure 10] A flowchart illustrating the procedure for installing a dishwasher according to Embodiment 1 of this disclosure. [Modes for carrying out the invention]

[0011] The embodiments will be described in detail below with reference to the drawings. However, unnecessary details may be omitted. For example, detailed explanations of already well-known matters or redundant explanations of substantially identical configurations may be omitted.

[0012] The attached drawings and the following description are provided to enable those skilled in the art to fully understand this disclosure and are not intended to limit the subject matter described in the claims.

[0013] (Embodiment 1) Embodiment 1 will be described below with reference to Figures 1 to 10.

[0014] [1-1. Structure]

[0015] Figure 1 shows the configuration of a dishwasher according to Embodiment 1 of the present disclosure. The dishwasher of this embodiment is a built-in type dishwasher installed under a kitchen counter or the like.

[0016] A washing tub 2 is disposed in a housing 5 of a dishwasher 1. The front surface of the washing tub 2 is configured to be openable and closable by a door 11. When the door 11 is opened, a dish basket 10 disposed in the washing tub 2 can be pulled out forward. When articles to be washed 9 such as dishes are placed on the dish basket 10, the dish basket 10 is pushed into the washing tub 2 and the door 11 is closed, the articles to be washed 9 can be put into a state where they can be washed.

[0017] A water supply hose 3 having one end connected to a water supply valve 4 communicating with the inside of the washing tub 2 and a drain hose 13 having one end connected to a drain pump 12 are drawn out from the back surface of the housing 5 to the outside. The water supply hose 3 is connected to a water supply pipe 18 such as a water supply line at the other end. The drain hose 13 is connected to a drain pipe 19 at the other end.

[0018] When an operation panel provided on the front surface of the dishwasher 1 is operated, a washing operation is executed. In the washing operation, the water supply valve 4 is opened, and water or hot water supplied from the water supply pipe 18 is supplied into the washing tub 2 through a stop valve 17, the water supply hose 3, and the water supply valve 4. When a predetermined amount of the supplied water or hot water is stored at the bottom of the washing tub 2, the water supply valve 4 is closed. The stored water or hot water is heated to an appropriate temperature by a heater 8, and a detergent is mixed in and sprayed onto the articles to be washed 9 as washing water.

[0019] The washing water is supplied to a washing nozzle 7 by a washing pump (not shown). The washing water sprayed from the rotating washing nozzle 7 is evenly sprayed onto the articles to be washed 9 placed on the dish basket 10, washes away the dirt, and returns to the bottom of the washing tub 2. The articles to be washed 9 are washed by repeating the circulation of the washing water. The contaminated water generated by washing is discharged from the drain hose 13 to the drain pipe 19 by starting the drain pump 12.

[0020] After the completion of the washing operation, a rinsing operation is executed. In the rinsing operation, the water supply valve 4 is opened, and the articles to be washed 9 are rinsed with the water introduced into the washing tub 2 from the water supply hose 3.

[0021] Figure 2 is a schematic cross-sectional view showing the connection between the water supply hose 3 and the water supply pipe 18. A fastening component 30 for securing the connection between the water supply hose 3 and the water supply pipe 18 is provided at the end of the water supply hose 3 that faces the water supply pipe 18. The fastening component 30 is a metal hexagonal nut with female threads on its inner circumference, and it fastens the connection between the water supply hose 3 and the water supply pipe 18 by screwing it into the male threads cut on the outer circumference of the fastening portion 20 of the water supply pipe 18.

[0022] When the user or installer of dishwasher 1 installs the dishwasher 1, if the piping space is narrow and visibility is insufficient, they will have to connect the water supply hose 3 and the water supply pipe 18 by feel, and there is a possibility that they may tighten the fastening component 30 without realizing that it is tilted at an angle to the water supply pipe 18. If the fastening component 30 is tightened while it is not coaxial with the water supply pipe 18, the connection between the water supply hose 3 and the water supply pipe 18 will be insufficient, and water may leak from the connection point.

[0023] To solve these problems, the dishwasher 1 of this embodiment is equipped with a connecting auxiliary part 40 to assist in the connection between the water supply hose 3 and the water supply pipe 18 using a fastening part 30.

[0024] Figure 3 is a cross-sectional view showing the connecting auxiliary component 40 attached to the water supply hose 3. The connecting auxiliary component 40 is attached near the end of the water supply hose 3 on the water supply pipe 18 side. The opening 42a of the connecting auxiliary component 40 on the water supply hose 3 side has an inner diameter that is larger than the outer diameter of the water supply hose 30 near the fastening component 30 and smaller than the outer diameter of the fastening component 30. The opening 42b of the connecting auxiliary component 40 on the water supply pipe 18 side has a shape that matches the outer circumference of the water supply pipe 18 upstream of the fastening portion 20 by the fastening component 30. A part of the inner wall of the connecting auxiliary component 40 is configured to fit with the outer circumference of the fastening component 30. Therefore, when the water supply hose 3 is inserted into the tip 21 of the water supply pipe 18 with the connecting auxiliary part 40 attached near the tip of the water supply hose 3, and the connecting auxiliary part 40 is slid toward the water supply pipe 18, the opening 42b of the connecting auxiliary part 40 acts as a guide, positioning the water supply hose 3 and the water supply pipe 18 coaxially, and the connecting auxiliary part 40 and the fastening part 30 engage. When the connecting auxiliary part 40 is rotated in this state, the fastening part 30 that is engaged with the connecting auxiliary part 40 rotates together with the connecting auxiliary part 40, so that the fastening part 30 and the water supply pipe 18 can be temporarily tightened. This prevents the fastening part 30 from being fastened to the water supply pipe 18 at an angle, thus suppressing water leakage from the connection. If the fastening part 30 is made of resin or the like instead of metal, the fastening part 30 and the water supply pipe 18 may be fully tightened using the connecting auxiliary part 40.

[0025] Figures 4, 5, and 6 show the structure of the connecting auxiliary component 40. Figure 4 is a perspective view showing the first frame 41a and the second frame 41b of the connecting auxiliary component 40 fitted together. Figure 5 is an exploded perspective view showing the first frame 41a and the second frame 41b of the connecting auxiliary component 40 separated. Figure 6 is a perspective view showing the structure of the second frame 41b.

[0026] The connecting auxiliary component 40 comprises a substantially semicircular first frame 41a with a handle 43a extending in the outer diameter direction, and a substantially semicircular second frame 41b with a handle 43b extending in the outer diameter direction. The connecting auxiliary component 40 is attached to the water supply hose 3 by fitting the first frame 41a and the second frame 41b together so as to sandwich the water supply hose 3. The connecting auxiliary component 40 can be detached from the water supply hose 3 by separating the first frame 41a and the second frame 41b. In this way, the connecting auxiliary component 40 is configured to be easily attached to and detached from the water supply hose 3.

[0027] The handles 43a and 43b are for the installer to grip with their fingers when rotating the connecting auxiliary part 40 to temporarily fasten the fastening part 30 and the water supply pipe 18. The handles 43a and 43b may be large enough to grip with fingers. Instead of the handles 43a and 43b, protrusions may be provided on the outer walls of the first frame 41a and the second frame 41b, or grooves that function as anti-slip surfaces may be provided. The handles 43a and 43b may be provided near the center of the sides of the hexagonal recess shape 44, rather than near the vertices. As a result, the handles 43a and 43b are provided on the thicker parts of the first frame 41a and the second frame 41b, so that strength can be ensured even if the thickness of the first frame 41a and the second frame 41b is reduced to reduce the raw material cost. The handles 43a and 43b may be provided at a position approximately 90° from the diametrical direction connecting the two ends of the semicircle when viewed from the central axis direction of the connecting auxiliary part 40. This makes it possible to equalize the stress on the first frame 41a and the second frame 41b when the connecting auxiliary part 40 is rotated, thereby suppressing damage and deterioration of the first frame 41a and the second frame 41b. The handles 43a and 43b may also be provided at an arbitrary angle from the diametrical direction connecting the two ends of the semicircle when viewed from the central axis direction of the connecting auxiliary part 40, for example, at a position of approximately 45° as shown in Figures 4, 5, and 6. With this arrangement, the handles 43a and 43b are positioned at a relative position of 180° when viewed from the central axis direction of the connecting auxiliary part 40 with the first frame 41a and the second frame 41b fitted together. This makes it possible to equalize the stress on the first frame 41a and the second frame 41b when the connecting auxiliary part 40 is rotated.

[0028] When fitted together, the first frame 41a and the second frame 41b form a cylindrical shape having a cavity 45 that penetrates in the direction of the centroid axis.

[0029] The flanges on the water supply hose 3 side of the first frame 41a and the second frame 41b are configured to form an opening 42a when the first frame 41a and the second frame 41b are fitted together. The opening 42a has an inner diameter that is larger than the outer diameter near the tip of the water supply hose 3 and smaller than the outer diameter of the fastening component 30. The inner diameter of the opening 42a may be approximately the same as the outer diameter near the tip of the water supply hose 3. This reduces rattling when the connecting auxiliary component 40 is attached to the water supply hose 3, thereby more reliably maintaining the fastening component 30 and the water supply piping 18 coaxially. The inner diameter of the opening 42a may be slightly larger than the outer diameter near the tip of the water supply hose 3. This allows the connecting auxiliary component 40 to be attached to the water supply hose 3 even if there are some manufacturing errors in the connecting auxiliary component 40, thereby improving the yield of the connecting auxiliary component 40.

[0030] The flanges on the water supply pipe 18 side of the first frame 41a and the second frame 41b are configured to form an opening 42b when the first frame 41a and the second frame 41b are fitted together. The opening 42b has a shape that matches the outer circumference upstream of the fastening portion 20 of the water supply pipe 18. The inner diameter of the opening 42b may be approximately the same as the outer diameter upstream of the fastening portion 20 of the water supply pipe 18. This reduces rattling when the connecting auxiliary part 40 is attached to the water supply hose 3, thereby more reliably maintaining the fastening portion 30 and the water supply pipe 18 coaxially. The inner diameter of the opening 42b may be slightly larger than the outer diameter upstream of the fastening portion 20 of the water supply pipe 18. This allows the connecting auxiliary part 40 to be attached to the water supply hose 3 even if there are some manufacturing errors in the connecting auxiliary part 40, thereby improving the yield of the connecting auxiliary part 40.

[0031] Parts of the inner walls of the first frame 41a and the second frame 41b are configured to form a recessed shape 44 that fits onto the outer circumference of the fastening component 30 when the first frame 41a and the second frame 41b are fitted together. The recessed shape 44 may be approximately the same as the shape of the outer circumference of the fastening component 30. This reduces rattling when the connecting auxiliary component 40 is attached to the water supply hose 3, thereby more reliably maintaining the fastening component 30 and the water supply pipe 18 coaxially. In addition, the connecting auxiliary component 40 makes it easier to temporarily fasten the fastening component 30 and the water supply pipe 18. The recessed shape 44 may be slightly larger than the shape of the outer circumference of the fastening component 30. This allows the connecting auxiliary component 40 to be attached to the water supply hose 3 even if there are some manufacturing errors in the connecting auxiliary component 40, thereby improving the yield of the connecting auxiliary component 40.

[0032] The first frame 41a and the second frame 41b each have a fitting portion 46 having a shape that fits together with the other. The fitting portion 46 may include a convex portion 46a and a concave portion 46b provided at both ends of a semicircle when the first frame 41a and the second frame 41b are viewed from the direction of the central axis of the connecting auxiliary part 40. As shown in Figure 6, the convex portion 46a and the concave portion 46b may be provided adjacent to each other at both ends of the semicircle. In this case, by sliding the first frame 41a and the second frame 41b in the diametrical direction (direction of the arrow in Figure 5) connecting the two ends of the semicircle, the convex portion 46a of the first frame 41a fits with the concave portion 46b of the second frame 41b, and the concave portion 46b of the first frame 41a fits with the convex portion 46a of the second frame 41b, allowing the connecting auxiliary part 40 to be attached to the water supply hose 3. When connecting the water supply hose 3 and the water supply pipe 18, the connecting auxiliary part 40 is slid toward the water supply pipe 18 side to engage the recessed shape 44 with the fastening part 30, thereby fixing the engagement of the fitting part 46. Once the fastening part 30 and the water supply pipe 18 are temporarily tightened, the connecting auxiliary part 40 is slid toward the water supply hose 3 side to disengage the recessed shape 44 from the fastening part 30, and the first frame 41a and the second frame 41b are slid in the opposite direction of the arrow in Figure 5, thereby disengaging the fitting part 46 and allowing the connecting auxiliary part 40 to be detached from the water supply hose 3. The convex part 46a and the concave part 46b may be positioned such that the convex part 46a is pressed against the concave part 46b when the fastening part 30 is tightened using the connecting auxiliary part 40. This makes it difficult for the engagement of the convex part 46a and the concave part 46b to come undone when the fastening part 30 is being tightened. The fitting portion 46 may be provided near the center of the side rather than near the vertices of the hexagon of the recessed shape 44. As a result, the fitting portion 46 is provided on the thicker parts of the first frame 41a and the second frame 41b, so that strength can be ensured even if the thickness of the first frame 41a and the second frame 41b is reduced to lower the raw material cost.

[0033] A configuration may be provided to maintain the state in which the first frame 41a and the second frame 41b are combined to form the connecting auxiliary part 40. For example, the first frame 41a and the second frame 41b may be surrounded by a member that surrounds the outer circumference of the first frame 41a and the second frame 41b in their combined state. In this case, the fitting portion 46 does not need to be provided.

[0034] The first frame 41a and the second frame 41b may have the same shape. This improves the yield of the connecting auxiliary parts 40 and reduces manufacturing costs. In addition, if one is damaged or lost, the user does not need to obtain both the first frame 41a and the second frame 41b, but only one, thus improving user convenience.

[0035] The connecting auxiliary part 40 may be configured so that the length between the recessed shape 44 and the opening 42b is adjustable. If a shut-off valve or the like is provided near the tip of the water supply pipe 18, a long length between the recessed shape 44 and the opening 42b would prevent the connecting auxiliary part 40 from temporarily fastening the fastening part 30 and the water supply pipe 18, so a short length between the recessed shape 44 and the opening 42b is required. On the other hand, if a shut-off valve or the like is not provided near the tip of the water supply pipe 18, a longer length between the recessed shape 44 and the opening 42b allows for more reliable coaxial maintenance of the water supply hose 3 and the water supply pipe 18, so a short length between the recessed shape 44 and the opening 42b is preferable. The connecting auxiliary part 40 may be composed of two or more members in the axial direction, and the length between the recessed shape 44 and the opening 42b may be adjustable by sliding the members together. The connecting auxiliary part 40 may be configured such that the length between the recessed shape 44 and one of the openings 42a or 42b is different from the length between the recessed shape 44 and the other of the openings 42a or 42b, and the length between the recessed shape 44 and the opening 42b can be adjusted depending on the orientation in which the connecting auxiliary part 40 is attached to the water supply hose 3. Two or more connecting auxiliary parts 40 with different lengths between the recessed shape 44 and the opening 42b may be provided.

[0036] The connecting auxiliary component 40 may be configured so that its inner diameter can be adjusted to match the outer diameter of the water supply hose 3, water supply pipe 18, fastening component 30, etc. An axial notch may be provided in the side wall of the connecting auxiliary component 40 to allow adjustment of its inner diameter.

[0037] A configuration may be provided to connect the first frame 41a and the second frame 41b so that they do not separate. The semicircular ends of the first frame 41a and the second frame 41b, when viewed from the direction of the central axis of the connecting auxiliary part 40, may be fixed together. The first frame 41a and the second frame 41b may be detachable from the water supply hose 3 by rotating around the fixed part as an axis. The first frame 41a and the second frame 41b may be connected by a thread-like member. This prevents the first frame 41a and the second frame 41b from separating, falling, or getting lost when the connecting auxiliary part 40 is detached from the water supply hose 3.

[0038] Figures 7, 8, and 9 show another example of the structure of the connecting auxiliary component 40. Figure 7 is a perspective view showing the first frame 41a and the second frame 41b constituting the connecting auxiliary component 40 in a fitted state. Figure 8 is an exploded perspective view showing the first frame 41a and the second frame 41b constituting the connecting auxiliary component 40 in a separated state. Figure 9 is a perspective view showing the structure of the second frame 41b.

[0039] The connecting auxiliary component 40 shown in Figures 7, 8, and 9 is a modified version of the connecting auxiliary component 40 shown in Figures 4, 5, and 6, with the flange on the water supply pipe 18 side omitted. Therefore, the opening 42b on the water supply pipe 18 side of the connecting auxiliary component 40 has an inner diameter larger than the outer diameter of the fastening component 30. With a connecting auxiliary component 40 of this structure, similar to the connecting auxiliary component 40 shown in Figures 4, 5, and 6, it is possible to prevent the fastening component 30 from being fastened to the water supply pipe 18 at an angle, thereby suppressing water leakage from the connection. The connecting auxiliary component 40 shown in Figures 7, 8, and 9 may have the same features as the connecting auxiliary component 40 shown in Figures 4, 5, and 6.

[0040] [1-2. Operation] A method for installing the dishwasher 1 configured as described above will now be explained. Figure 10 is a flowchart showing the procedure for installing the dishwasher 1 of Embodiment 1. The water supply hose 3 is sandwiched between the first frame 41a and the second frame 41b, thereby attaching the connecting auxiliary part 40 to the water supply hose 3 (S10). The connecting auxiliary part 40 is slid toward the water supply pipe 18 (S12), thereby fitting the fitting part 46 of the first frame 41a and the fitting part 46 of the second frame 41b together (S14), and the recessed shape 44 is fitted with the fastening part 30 (S16), thereby fixing the fitting between the fitting part 46 of the first frame 41a and the fitting part 46 of the second frame 41b. The fastening part 30 and the water supply pipe 18 are temporarily tightened by rotating the connecting auxiliary part 40 (S18). By sliding the connecting auxiliary part 40 toward the water supply hose 3 (S20), the engagement between the recessed shape 44 and the fastening part 30 is released (S22), and the engagement between the fitting part 46 of the first frame 41a and the fitting part 46 of the second frame 41b is released (S24), thereby detaching the connecting auxiliary part 40 from the water supply hose 3 (S26).

[0041] [1-3. Effects, etc.] As described above, in this embodiment, the dishwasher 1 comprises a washing tank 2 for accommodating items to be washed 9, a water supply hose 3 for supplying washing water to the washing tank 2, a fastening component 30 provided at the end of the water supply hose 3 for fastening the connection between the water supply hose 3 and the water supply pipe 18, and a cylindrical connecting auxiliary component 40 for assisting the fastening by the fastening component 30. The connecting auxiliary component 40 has a hollow portion 45 that penetrates in the direction of the centrifugal axis, and openings 42a and 42b are provided at both ends of the hollow portion 45 in the direction of the centrifugal axis through which the water supply hose 3 can pass. A recessed shape 44 that fits with the fastening component 30 is provided on the inner wall of the hollow portion 45, and the connecting auxiliary component 40 is configured to be detachable from the water supply hose 3. This prevents the fastening component 30 from being fastened to the water supply pipe 18 in an oblique position, thereby suppressing water leakage from the connection.

[0042] Furthermore, in this embodiment, the opening 42a of the connecting auxiliary part 40 on the water supply hose 3 side has an inner diameter that is larger than the outer diameter near the tip of the water supply hose 3 and smaller than the outer diameter of the fastening part 30, and the opening 42b of the connecting auxiliary part 40 on the water supply pipe 18 side has a shape that matches the outer circumference of the water supply pipe 18 upstream of the fastening part 20 by the fastening part 30. This prevents the fastening part 30 from being fastened at an angle, thereby suppressing water leakage from the connection.

[0043] Furthermore, in this embodiment, the opening 42a of the connecting auxiliary part 40 on the water supply hose 3 side has an inner diameter that is larger than the outer diameter near the tip of the water supply hose 3 and smaller than the outer diameter of the fastening part 30, and the opening 42b of the connecting auxiliary part 40 on the water supply pipe 18 side has an inner diameter that is larger than the outer diameter of the fastening part 30. This prevents the fastening part 30 from being fastened at an angle, thereby suppressing water leakage from the connection.

[0044] Furthermore, in this embodiment, the connecting auxiliary part 40 comprises a first frame 41a having a substantially semicircular shape and a second frame 41b having a substantially semicircular shape. The connecting auxiliary part 40 is attached to the water supply hose 3 by sandwiching the water supply hose 3 between the first frame 41a and the second frame 41b, and is detached from the water supply hose 3 by separating the first frame 41a and the second frame 41b. This allows the connecting auxiliary part 40 to be easily attached to and detached from the water supply hose 3.

[0045] Furthermore, in this embodiment, the first frame 41a and the second frame 41b each have a fitting portion 46 having a shape that allows them to fit together. This prevents the connecting auxiliary part 40 from easily falling off.

[0046] Furthermore, in this embodiment, the fitting portion 46 includes protrusions 46a and recesses 46b provided at both ends of a semicircle when the first frame 41a and the second frame 41b are viewed from the direction of the central axis of the connecting auxiliary part 40. This prevents the connecting auxiliary part 40 from easily falling off.

[0047] Furthermore, in this embodiment, the convex portion 46a and the concave portion 46b are positioned such that the convex portion 46a is pressed against the concave portion 46b when the fastening component 30 is tightened using the connecting auxiliary component 40. This makes it difficult for the engagement between the convex portion 46a and the concave portion 46b to come undone when the fastening component 30 is being tightened.

[0048] Furthermore, in this embodiment, the recessed shape 44 has a hexagonal shape, and the fitting portion 46 is provided near the center of the hexagonal side of the recessed shape 44. As a result, the fitting portion 46 is provided on the thicker parts of the first frame 41a and the second frame 41b, so that even if the thickness of the first frame 41a and the second frame 41b is reduced to lower the raw material cost, strength can be ensured.

[0049] Furthermore, in this embodiment, the fitting portion 46 is configured to fit together by sliding the first frame 41a and the second frame 41b in the direction connecting the two ends of the semicircle when viewed from the central axis direction of the connecting auxiliary part 40. This makes it easy to attach and detach the connecting auxiliary part 40 from the water supply hose 3.

[0050] Furthermore, in this embodiment, the first frame 41a and the second frame 41b have the same shape. This improves the yield of the connecting auxiliary parts 40 and reduces manufacturing costs. Also, if one is damaged or lost, the user does not need to obtain both the first frame 41a and the second frame 41b, but only needs to obtain one, thus improving user convenience.

[0051] Furthermore, in this embodiment, the method for installing the dishwasher 1 includes the steps of: attaching the connecting auxiliary part 40 to the water supply hose 3; fitting the recessed shape 44 with the fastening part 30; tightening the fastening part 30 by rotating the connecting auxiliary part 40; disengaging the recessed shape 44 from the fastening part 30; and detaching the connecting auxiliary part 40 from the water supply hose 3. This prevents the fastening part 30 from being fastened at an angle, thereby suppressing water leakage from the connection.

[0052] Furthermore, in this embodiment, the connecting auxiliary part 40 comprises a first frame 41a having a substantially semicircular shape and a second frame 41b having a substantially semicircular shape, and the first frame 41a and the second frame 41b each have a fitting portion 46 having a shape that fits together with each other, and the connection auxiliary part 40 includes the steps of sliding the connecting auxiliary part 40 toward the water supply pipe 18 to fit the fitting portion 46 of the first frame 41a and the fitting portion 46 of the second frame 41b, and sliding the connecting auxiliary part 40 toward the water supply hose 3 to disengage the fitting portion 46 of the first frame 41a and the fitting portion 46 of the second frame 41b. This makes it easy to attach and detach the connecting auxiliary part 40 from the water supply hose 3.

[0053] Furthermore, in this embodiment, the connecting auxiliary part 40 for the water supply hose 3 is a connecting auxiliary part 40 for assisting the connection between the water supply hose 3 and the water supply pipe 18, and is configured in a cylindrical shape, having a hollow part 45 that penetrates in the direction of the concentric axis, and openings 42a and 42b are provided at both ends of the hollow part 45 in the direction of the concentric axis through which the water supply hose 3 can pass, and a recessed shape 44 is provided on the inner wall of the hollow part 45 that fits with a fastening part 30 for fastening the connection to the water supply pipe 18 provided at the tip of the water supply hose 3, and is configured to be detachable from the water supply hose 3. This prevents the fastening part 30 from being fastened to the water supply pipe 18 in an oblique position, and thus can suppress water leakage from the connection part.

[0054] (Other embodiments) As described above, Embodiment 1 has been explained as an example of the technology disclosed in this application. However, the technology in this disclosure is not limited to this and can be applied to embodiments that have been modified, replaced, added, or omitted. Furthermore, it is possible to create new embodiments by combining the components described in Embodiment 1 above.

[0055] Therefore, other embodiments are illustrated below.

[0056] Embodiment 1 mainly described a built-in dishwasher incorporated into a system kitchen, but the technology of this disclosure is also applicable to countertop or freestanding dishwashers.

[0057] (Note) Based on the above description of embodiments, the following technologies are disclosed. (Technology 1) A washing tank for containing the items to be washed, A water supply hose for supplying cleaning water to the aforementioned cleaning tank, A fastening component is provided at the tip of the water supply hose for fastening the connection between the water supply hose and the water supply pipe, A cylindrical connecting auxiliary part for assisting fastening by the aforementioned fastening component, Equipped with, The aforementioned connecting auxiliary part has a cavity that penetrates in the direction of the central axis, Openings are provided at both ends of the cavity in the axial direction, through which the water supply hose can pass. The inner wall of the cavity is provided with a recessed shape that fits with the fastening component. The aforementioned connecting auxiliary component is configured to be detachable from the water supply hose. dishwasher. This prevents the fastening component 30 from being fastened at an angle, thereby suppressing water leakage from the connection point. (Technology 2) The opening on the water supply hose side of the connecting auxiliary component has an inner diameter that is larger than the outer diameter near the tip of the water supply hose and smaller than the outer diameter of the fastening component. The opening on the water supply piping side of the connecting auxiliary component has a shape that matches the outer circumference upstream of the fastening portion of the water supply piping by the fastening component. The dishwasher described in Technical 1. This prevents the fastening component 30 from being fastened at an angle, thereby suppressing water leakage from the connection point. (Technology 3) The opening on the water supply hose side of the connecting auxiliary component has an inner diameter that is larger than the outer diameter near the tip of the water supply hose and smaller than the outer diameter of the fastening component. The opening on the water supply piping side of the connecting auxiliary component has an inner diameter larger than the outer diameter of the fastening component. The dishwasher described in Technical 1. This prevents the fastening component 30 from being fastened at an angle, thereby suppressing water leakage from the connection point. (Technology 4) The connecting auxiliary component comprises a first frame having a substantially semicircular shape and a second frame having a substantially semicircular shape. It is attached to the water supply hose by sandwiching the water supply hose between the first frame and the second frame, and is detached from the water supply hose by separating the first frame and the second frame. A dishwasher as described in any one of the three technical specifications. This allows the connecting support part 40 to be easily attached to and detached from the water supply hose 3. (Technology 5) The first frame and the second frame each include a fitting portion having a shape that allows them to fit together. The dishwasher described in Technical 4. This prevents the connecting support part 40 from easily falling off. (Technology 6) The fitting portion includes protrusions and recesses provided at both ends of a semicircle when the first frame and the second frame are viewed from the direction of the central axis of the connecting auxiliary part. The dishwasher described in Technical 5. This prevents the connecting support part 40 from easily falling off. (Technology 7) The protrusion and the recess are positioned such that when the fastening component is tightened using the connecting auxiliary component, the protrusion is pressed against the recess. The dishwasher described in Technical 6. This makes it less likely for the engagement between the protrusion 46a and the recess 46b to come undone when the fastening component 30 is tightened. (Technology 8) The aforementioned recessed shape has a hexagonal shape. The fitting portion is provided near the center of the side of the recessed hexagon. A dishwasher as described in any one of Technical Sections 5 to 7. As a result, fitting portions 46 are provided in the thicker parts of the first frame 41a and the second frame 41b, so that even if the thickness of the first frame 41a and the second frame 41b is reduced to lower the raw material cost, strength can still be ensured. (Technology 9) The fitting portion is configured to be fitted by sliding the first frame and the second frame in a direction that connects the two ends of a semicircle when viewed from the central axis direction of the connecting auxiliary part. A dishwasher as described in Technical 6 or 7. This allows the connecting support part 40 to be easily attached to and detached from the water supply hose 3. (Technology 10) The first frame and the second frame have the same shape. A dishwasher as described in any one of Technical Sections 5 through 9. This improves the yield of the connecting auxiliary parts 40 and reduces manufacturing costs. In addition, if one of the parts is damaged or lost, the user does not need to obtain both the first frame 41a and the second frame 41b, but only one, thus improving user convenience. (Technology 11) A method for installing a dishwasher as described in any one of the technical items 1 to 10, The steps include attaching the connecting auxiliary component to the water supply hose, The steps include fitting the recessed shape and the fastening component together, The steps include: tightening the fastening component by rotating the connecting auxiliary component; A step of disengaging the recessed shape from the fastening component, The steps include: detaching the connecting auxiliary component from the water supply hose; Installation instructions for a dishwasher, including the installation method. This prevents the fastening component 30 from being fastened at an angle, thereby suppressing water leakage from the connection point. (Technology 12) The aforementioned connecting auxiliary component comprises a first frame having a substantially semicircular shape and a second frame having a substantially semicircular shape. The first frame and the second frame each have a fitting portion having a shape that allows them to fit together. The process includes: sliding the connecting auxiliary part toward the water supply piping to engage the fitting portion of the first frame with the fitting portion of the second frame; and sliding the connecting auxiliary part toward the water supply hose to disengage the fitting portion of the first frame with the fitting portion of the second frame. The installation method for the dishwasher described in Technical 11. This allows the connecting support part 40 to be easily attached to and detached from the water supply hose 3. (Technology 13) A connecting aid component for assisting the connection between a water supply hose and a water supply pipe, The aforementioned connecting auxiliary part is cylindrical in shape and has a cavity that penetrates in the direction of the central axis, Openings are provided at both ends of the cavity in the axial direction, through which the water supply hose can pass. The inner wall of the cavity is provided with a recessed shape that fits with a fastening component for fastening the connection to the water supply pipe, which is provided at the tip of the water supply hose. It is configured to be detachable from the aforementioned water supply hose. A connector for water supply hoses. This prevents the fastening component 30 from being fastened to the water supply pipe 18 at an angle, thereby suppressing water leakage from the connection point. [Industrial applicability]

[0058] This invention can be used in dishwashers for washing items to be washed. [Explanation of symbols]

[0059] 1 Dishwasher 2. Washing tank 3. Water supply hose 4. Water supply valve 5. Enclosure 7. Cleaning nozzle 8 Heaters 9. Items to be washed 10 Dish basket 11 Doors 12 Drainage pump 13. Drain hose 17. Shut-off valve 18. Water supply piping 19 Drainage piping 20 Fastening part 21 Tip 30 Fastening components 40 Connection support parts 41a First frame 41b Second frame 42a, 42b opening 43a, 43b Handles 44 Recessed shape 45 Cavity 46 Fitting part 46a Convex part 46b recess

Claims

1. A washing tank for containing the items to be washed, A water supply hose for supplying cleaning water to the aforementioned cleaning tank, A fastening component is provided at the tip of the water supply hose for fastening the connection between the water supply hose and the water supply pipe, A cylindrical connecting auxiliary part for assisting fastening by the aforementioned fastening component, Equipped with, The aforementioned connecting auxiliary part has a cavity that penetrates in the direction of the central axis, Openings are provided at both ends of the cavity in the axial direction, through which the water supply hose can pass. The inner wall of the cavity is provided with a recessed shape that fits with the fastening component. The aforementioned connecting auxiliary component is configured to be detachable from the water supply hose. dishwasher.

2. The opening on the water supply hose side of the connecting auxiliary component has an inner diameter that is larger than the outer diameter near the tip of the water supply hose and smaller than the outer diameter of the fastening component. The opening on the water supply piping side of the connecting auxiliary component has a shape that matches the outer circumference upstream of the fastening portion of the water supply piping by the fastening component. The dishwasher according to claim 1.

3. The opening on the water supply hose side of the connecting auxiliary component has an inner diameter that is larger than the outer diameter near the tip of the water supply hose and smaller than the outer diameter of the fastening component. The opening on the water supply piping side of the connecting auxiliary component has an inner diameter larger than the outer diameter of the fastening component. The dishwasher according to claim 1.

4. The connecting auxiliary component comprises a first frame having a substantially semicircular shape and a second frame having a substantially semicircular shape. It is attached to the water supply hose by sandwiching the water supply hose between the first frame and the second frame, and is detached from the water supply hose by separating the first frame and the second frame. A dishwasher according to any one of claims 1 to 3.

5. The first frame and the second frame each have a fitting portion having a shape that allows them to fit together. The dishwasher according to claim 4.

6. The fitting portion includes convex and concave portions provided at both ends of a semicircle when the first frame and the second frame are viewed from the direction of the central axis of the connecting auxiliary part. The dishwasher according to claim 5.

7. The protrusion and the recess are positioned such that when the fastening component is tightened using the connecting auxiliary component, the protrusion is pressed against the recess. The dishwasher according to claim 6.

8. The aforementioned recessed shape has a hexagonal shape. The fitting portion is provided near the center of the side of the recessed hexagon. The dishwasher according to claim 5.

9. The fitting portion is configured to be fitted by sliding the first frame and the second frame in a direction that connects the two ends of a semicircle when viewed from the central axis direction of the connecting auxiliary part. The dishwasher according to claim 6.

10. The first frame and the second frame have the same shape. A dishwasher according to any one of claims 5 to 9.

11. A method for installing a dishwasher according to any one of claims 1 to 3, The steps include attaching the connecting auxiliary component to the water supply hose, The steps include fitting the recessed shape and the fastening component together, The steps include: tightening the fastening component by rotating the connecting auxiliary component; A step of disengaging the recessed shape from the fastening component, The steps include: detaching the connecting auxiliary component from the water supply hose; Installation instructions for a dishwasher, including the installation method.

12. The aforementioned connecting auxiliary component comprises a first frame having a substantially semicircular shape and a second frame having a substantially semicircular shape. The first frame and the second frame each have a fitting portion having a shape that allows them to fit together. The process includes: sliding the connecting auxiliary part toward the water supply piping to engage the fitting portion of the first frame with the fitting portion of the second frame; and sliding the connecting auxiliary part toward the water supply hose to disengage the fitting portion of the first frame with the fitting portion of the second frame. The method for installing a dishwasher according to claim 11.

13. A connecting aid component for assisting the connection between a water supply hose and a water supply pipe, The aforementioned connecting auxiliary part is configured in a cylindrical shape and has a cavity that penetrates in the direction of the central axis, Openings are provided at both ends of the cavity in the axial direction, through which the water supply hose can pass. The inner wall of the cavity is provided with a recessed shape that fits with a fastening component for fastening the connection to the water supply pipe, which is provided at the tip of the water supply hose. It is configured to be detachable from the aforementioned water supply hose. A connector for water supply hoses.

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