JP2020093078A - washing machine - Google Patents

Abstract

To provide a washing machine equipped with an arm receiving part excellent in durability with a simple configuration.SOLUTION: A washing machine includes: a door 7 for defining a part of a washing chamber 3 for washing dishes, which is provided so as to be moved in a vertical direction with respect to a washing machine body 2; rotation arms 8B and 8B disposed along the side faces 7a and 7a of the door 7, which is provided so as to be rotated with the base end part supported by the washing machine body 2 as a rotation axis; and an arm receiving part 50 provided to the door 7 for receiving the rotation arms 8B and 8B moving in a rotation direction and causing the door 7 to be moved in a lifting and lowering direction. The arm receiving part 50 includes a first shaft part 51 and a second shaft part 52 extending so as to protrude from the side faces 7a and 7a of the door 7, and a collar member 55 provided so as to rotate around the first shaft part 51 with an extension direction of the first shaft part 51 as a rotation axis, which comes in contact with the rotation arms 8B and 8B when the rotation arms 8B and 8B rotate.SELECTED DRAWING: Figure 4

Description

The present invention relates to a washing machine.

A washing machine for washing objects to be washed such as dishes is known. For example, Patent Document 1 discloses a so-called door type dishwasher that opens and closes a washing chamber by moving a door by raising and lowering a handle. In the dishwasher described in Patent Document 1, a rotating arm (door handle) is provided so as to surround the lid body (casing lid body). A base end portion of the door handle is rotatably supported by a rear frame arranged on the back surface of the cleaning tank. A part of the tip end side of the rotating arm is attached to the side surface of the lid through an arm receiving portion (link mechanism) for interlocking the movement of the rotating arm in the turning direction with the vertical movement of the lid. It is connected.

JP, 11-128144, A

Since the arm receiving portion in the conventional washing machine is configured as a link mechanism, it has a large number of parts and has a complicated configuration. Moreover, since the lid is repeatedly opened and closed, it is desired that the arm receiving portion has excellent durability.

Then, an object of the present invention is to provide a washing machine provided with an arm receiving portion having a simple structure and excellent in durability.

A cleaning machine according to the present invention defines a part of a cleaning chamber for cleaning an object to be cleaned, and a lid body that is vertically movable with respect to the main body of the cleaning machine and an outer surface of the lid body. A rotating arm that is arranged and is rotatable around a base end supported by the main body of the washing machine, and a rotating arm that is provided on the lid and that moves in the rotating direction. An arm receiving portion for moving the lid body in the up-and-down direction, the arm receiving portion includes a shaft portion extending so as to project from an outer surface of the lid body, and a shaft portion with the extending direction of the shaft portion as a rotation axis. And a rotating portion that is rotatably provided around the rotating arm and contacts the rotating arm when the rotating arm rotates.

In the washer having this structure, the arm receiving portion is composed of the shaft portion and the rotating portion, so that the number of parts can be reduced as compared with the arm receiving portion formed of the link mechanism or the like. This allows the arm receiving portion to have a simple structure. Further, since the shaft portion is provided with the rotating portion rotatable with respect to the shaft portion, the sliding contact between the rotating arm and the arm receiving portion when transmitting the rotating motion of the rotating arm to the lifting movement of the lid body. Can be suppressed. As a result, the wear of the components due to the sliding contact can be suppressed, and the durability can be improved.

In the washing machine of the present invention, the rotating part may be an external insertion member externally inserted on the shaft part. With this configuration, the rotating portion can be easily configured.

In the washing machine of the present invention, the shaft portion has the first shaft portion and the second shaft portion which are arranged so as to sandwich the rotating arm in the up-and-down direction, and the first shaft portion is the second shaft portion. It may be provided above in the up-and-down direction, and the rotating portion may be provided on the first shaft portion. With this configuration, it is easy to efficiently transmit both the rotation movement of the rotation arm from the lower side to the upper side and the rotation movement of the rotation arm from the upper side to the lower side as the lifting movement of the lid.

In the cleaning machine of the present invention, a part of the cleaning chamber for cleaning the object to be cleaned is defined, and a lid body that is movable in the vertical direction with respect to the body of the washing machine and an outer surface of the lid body are arranged. In addition, a rotating arm that is rotatably provided with a base end supported by the main body of the washing machine as a rotating shaft and a rotating arm that is provided on the lid and moves in a rotating direction are received. An arm receiving portion for moving the lid body in a vertical direction, the arm receiving portion extends so as to project from an outer surface of the lid body, and at least an outer surface of the arm receiving portion is provided with a rotating arm. It is made of a highly slidable material that enhances slidability.

In the washer having this configuration, the arm receiving portion is composed of only the shaft portion, and therefore the number of parts can be reduced as compared with the arm receiving portion configured by the link mechanism or the like. This allows the arm receiving portion to have a simple structure. Further, since the shaft portion is formed of a highly slidable material that enhances slidability with the rotating arm, the rotating arm and the arm when transmitting the rotating motion of the rotating arm to the up-and-down motion of the door. Friction with the receiving part can be suppressed. As a result, it is possible to suppress the wear of the parts due to the above-mentioned friction, so that the durability of the arm receiving portion can be improved.

In the washing machine of the present invention, at least the outer surface of the arm receiving portion is formed of a highly slidable material made of ultra high molecular weight polyethylene (UHMWPE) resin, polyacetal (POM) resin, or high density polyethylene (HDPE) resin. May be. Accordingly, it is possible to provide an arm receiving portion that has excellent durability or cost performance and can improve slidability with the rotating arm.

In the washing machine of the present invention, the arm receiving portion has a shaft portion that extends so as to project from the outer surface of the lid body, and an external insertion member that is externally inserted into the shaft portion, and the external insertion member is It may be formed of a highly slidable material. This makes it possible to easily configure the arm receiving portion, at least the outer surface of which is made of the highly slidable material.

In the washing machine of the present invention, the arm receiving portion has a first shaft portion and a second shaft portion which are arranged so as to sandwich the rotating arm in the up-and-down direction, and the first shaft portion is the second shaft. The first shaft portion may be provided above the portion in the up-down direction, and at least the outer surface of the first shaft portion may be formed of a highly slidable material. With this configuration, it is easy to efficiently transmit both the rotation movement of the rotation arm from the lower side to the upper side and the rotation movement of the rotation arm from the upper side to the lower side as the lifting movement of the lid.

According to the present invention, it is possible to provide a washer having a simple structure and an arm receiving portion having excellent durability.

FIG. 1 is a perspective view of the dishwasher according to the first embodiment. FIG. 2 is a cross-sectional view showing a schematic configuration of the dishwasher according to the first embodiment. FIG. 3A is an enlarged perspective view of an arm receiving portion provided on the door of FIG. 1. FIG. 3B is a perspective view showing the arm receiving portion. FIG. 4 is a side view of the arm receiving portion of FIG. 5(a) to 5(c) are transition diagrams showing the operations of the rotating arm and the arm receiving portion when opening and closing the door. FIG. 6A is a perspective view showing an arm receiving portion according to the second embodiment. FIG. 6B is a side view of the arm receiving portion of FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or corresponding elements will be denoted by the same reference symbols, without redundant description. In the following description, the directions (vertical direction, front-back direction, left-right direction) defined in FIG. 1 are used for the description.

(First embodiment)
As shown in FIGS. 1 and 2, a dishwasher (washer) 1 has a washer body 2 covered with a stainless steel panel. The washing machine main body 2 is partitioned into an upper portion 2A in which the washing chamber 3 is formed and a lower portion 2B in which the machine chamber 4 is formed. The washing machine main body 2 has columns 6. The column 6 is arranged at a corner portion on the back side of the main body 2 of the washing machine so as to extend in the vertical direction across the upper portion 2A and the lower portion 2B. The back panel 5 is arranged between the columns 6 and 6. Legs 9 are attached to the four corners of the bottom surface of the washer body 2. An operation panel (not shown) for operating the dishwasher 1 is provided on a side surface of the washer body 2.

A door (lid) 7 for defining or opening the cleaning chamber 3 is provided in the upper portion 2A of the main body 2 of the cleaning machine. The door 7 can move up and down (movable) between the closed position P1 (see FIG. 5A) above the wash water tank 15 and the open position P2 (see FIG. 5C) above the closed position P1. ) Is provided. Specifically, the door 7 is vertically movably guided by a pair of stainless steel columns 6 and 6, and is vertically moved by a handle 8A extending in the horizontal direction at the front. The closed position P1 is a position when the door 7 is closed and the cleaning chamber 3 is defined, and is also a position when the tableware (object to be cleaned) is cleaned (cleaning operation and rinsing operation). The open position P2 is a position when the door 7 is opened and the cleaning chamber 3 is opened, and is a position when the rack R containing the tableware is taken in and out.

The front ends of a pair of left and right rotating arms 8B, 8B are fixed to both ends of the handle 8A. The rotating arms 8B and 8B extend obliquely along the side surfaces 7a and 7a which are a part of the outer surface of the door 7. The base ends of the rotating arms 8B, 8B opposite to the tip ends thereof are pivotally supported by columns 6, 6 arranged behind the door 7. The rotating arms 8B, 8B are provided so as to be rotatable around their base ends as rotating shafts. The handle 8A and the rotating arms 8B, 8B are formed in a U shape in a plan view.

The side surfaces 7a, 7a of the door 7 are provided with arm receiving portions 50 for receiving the rotating arms 8B, 8B moving in the rotating direction and moving the door 7 in the up-and-down direction which is the up-and-down direction of the door 7. .. As shown in FIGS. 3A, 3B, and 4, the arm receiving portion 50 includes a first shaft portion (shaft portion) 51, a second shaft portion (shaft portion) 52, and a connecting portion. 53 and a collar member (rotating portion) 55. The first shaft portion 51, the second shaft portion 52, and the connecting portion 53 are integrally formed of a resin material such as ABS resin.

The first shaft portion 51 is a columnar member extending in one direction. The first shaft portion 51 extends so as to project from the connecting portion 53. A screw groove 57a for screwing a bolt 57 that is fixed to the side surface 7a of the door 7 is formed on the front end side of the first shaft portion 51. The second shaft portion 52 is arranged with a space from the first shaft portion 51, and, like the first shaft portion 51, extends so as to project from the connecting portion 53. The second shaft portion 52 is also a cylindrical member that extends in one direction. A screw groove 57a for screwing a bolt 57 that is fixed to the side surface 7a of the door 7 is also formed on the front end side of the second shaft portion 52. The connecting portion 53 is a member serving as a base of the first shaft portion 51 and the second shaft portion 52, and is a flat plate-shaped member. It can be said that the connecting portion 53 is a member that connects the first shaft portion 51 and the second shaft portion 52. The first shaft portion 51 and the second shaft portion 52 are made of, for example, a material such as acrylonitrile/butadiene/styrene copolymerization (ABS) resin or polypropylene (PP) resin.

The first shaft portion 51 is rotatably provided around the first shaft portion 51 with the extending direction of the first shaft portion 51 as a rotation axis, and contacts the rotation arm 8B when the rotation arm 8B rotates. The collar member 55 is provided. The collar member 55 is a cylindrical member and is an external insertion member externally inserted to the first shaft portion 51. The material of the collar member 55 is selected so that the outer peripheral surface of the collar member 55 has excellent slidability with the rotating arm 8B. The collar member 55 is formed of a resin material having a high slidability, such as an ultra high molecular weight polyethylene (UHMWPE) resin, a polyacetal (POM) resin, or a high density polyethylene (HDPE) resin. The inner diameter of the collar member 55 is formed to be slightly larger than the outer diameter of the first shaft portion 51. The collar member 55 that is externally inserted into the first shaft portion 51 is not externally inserted into the second shaft portion 52. That is, the outer peripheral surface of the second shaft portion 52 is exposed. The outer peripheral surface of the second shaft portion 52 may be surface-treated so as to have good slidability with the rotating arm 8B.

The arm receiving portion 50 is in a state in which the first shaft portion 51 and the second shaft portion 52 project from the side surface 7 a of the door 7, and the connecting portion 53 is substantially parallel to the side surface 7 a of the door 7. Thus, it is fixed to the side surface 7a of the door 7. When the arm receiving portion 50 is attached to the side surface 7a of the door 7, the first shaft portion 51 and the second shaft portion 52 extend in the left-right direction. The arm receiving portion 50 is fixed to the side surface 7a of the door 7 so that the first shaft portion 51 and the second shaft portion 52 sandwich the rotating arm 8B in the vertical direction. The first shaft portion 51 is arranged above the second shaft portion 52 in the vertical direction. The collar member 55 is provided on the shaft portion (first shaft portion 51) arranged above the two shaft portions. That is, the collar member 55 is provided on the first shaft portion 51 that comes into contact when the rotating arm 8B is rotated from the lower side to the upper side. The rotating arm 8B is arranged so as to pass through a region S surrounded by the first shaft portion 51, the second shaft portion 52, the connecting portion 53, and the side surface 7a of the door 7.

When the door 7 covers the wash water tank 15 at the closed position P1, the wash chamber 3 is formed inside the door 7. Above the cleaning chamber 3, an upper cleaning nozzle 12A composed of three radially extending arms and an upper rinse nozzle 13A composed of two arms are rotatably arranged. Similarly, in the lower part of the cleaning chamber 3, a lower cleaning nozzle 12B composed of three radially extending arms and a lower rinse nozzle 13B composed of two arms are rotatably arranged. As for the dishes arranged in the tableware rack, cleaning water is sprayed from above and below by the upper cleaning nozzle 12A and the lower cleaning nozzle 12B, and rinse water is sprayed from above and below by the upper rinse nozzle 13A and the lower rinse nozzle 13B.

A washing water tank 15 is provided at the bottom of the washing chamber 3. A filter 18 is detachably arranged between the cleaning chamber 3 and the cleaning water tank 15. A cleaning pump 23 is connected to the front surface of the cleaning water tank 15 via a cleaning water suction port. The washing pump 23 is arranged in the machine room 4. The cleaning water discharge pipe 21 is connected to the discharge port of the cleaning pump 23. The cleaning water discharge pipe 21 is branched into a first cleaning water discharge pipe 21A and a second cleaning water discharge pipe 21B, the first cleaning water discharge pipe 21A is connected to the upper cleaning nozzle 12A, and the second cleaning water discharge pipe is provided. 21B is connected to the lower cleaning nozzle 12B.

Above the lower cleaning nozzle 12B and the lower rinsing nozzle 13B in the cleaning chamber 3, a rack rail 11 on which a lattice-shaped rack R on which dishes and dishes after eating and drinking are arranged is placed is arranged. There is. The rack rail 11 is a frame body made of stainless steel and is detachably attached to the dishwasher 1.

A rinsing water tank 25 to which rinsing water is supplied from the outside via a water supply pipe 22A is arranged in the machine room 4. A rinse pump 27 is connected to the rinse water tank 25 via a rinse water suction pipe 29. A rinse water discharge pipe 31 is connected to the discharge port of the rinse pump 27. The rinse water discharge pipe 31 is branched into a first rinse water discharge pipe 31A and a second rinse water discharge pipe 31B, the first rinse water discharge pipe 31A is connected to the upper rinse nozzle 13A, and the second rinse water discharge pipe is connected. 31B is connected to the lower rinse nozzle 13B. The first rinse water discharge pipe 31A is arranged in the first cleaning water discharge pipe 21A. That is, the first cleaning water discharge pipe 21A and the first rinse water discharge pipe 31A have a double pipe structure.

In the machine room 4, an electrical equipment box 90, etc., in which a controller for controlling the overall operation of the dishwasher 1 is built, is housed.

Next, the opening/closing operation of the door 7 of the dishwasher 1 will be described mainly with reference to FIGS. 5A to 5C. As shown in FIG. 5A, when opening the door 7 located at the closed position P1, the operator grips the handle 8A and rotates the handle 8A upward. As a result, the rotating arms 8B, 8B connected to the handle 8A are attached to the collar member 55 (see FIGS. 3A and 3B) externally inserted on the first shaft portion 51 of the arm receiving portion 50. Contact. The collar member 55 contacted by the rotating arms 8B, 8B is supported from below by the rotating arms 8B, 8B and lifted up. As a result, as shown in FIGS. 5B and 5C, the rotating arms 8B and 8B move the door 7 integrally provided on the arm receiving portion 50 upward.

When the door 7 located at the closed position P1 shown in FIG. 5A is moved to the position P3 shown in FIG. 5B, the rotating arms 8B and 8B move relative to the arm receiving portion 50. Make a move. In other words, the arm receiving portion 50 moves along the rotation arm 8B to the base end side (the support column 6 side) of the rotation arm 8B. At this time, the collar member 55 provided on the arm receiving portion 50 rotates counterclockwise with the upward movement of the rotating arm 8B with respect to the arm receiving portion 50. Then, when the door 7 moves to the position P3 shown in FIG. 5B, the rotation of the collar member 55 is temporarily stopped.

Even when the door 7 located at the position P3 shown in FIG. 5(b) is moved to the open position P2 shown in FIG. 5(c), as described above, the rotating arms 8B and 8B are provided with the arm receiving members. It moves relative to the section 50. Here, the arm receiving portion 50 moves along the rotating arm 8B to the tip side of the rotating arm 8B (handle 8A side). At this time, the collar member 55 provided on the arm receiving portion 50 rotates clockwise along with the movement of the rotating arm 8B with respect to the arm receiving portion 50.

When returning the door 7 in the open position P2 shown in FIG. 5(c) to the closed position P1 shown in FIG. 5(a), the door 7 descends due to its own weight. Therefore, since the door 7 is not lowered by the rotating motion of the rotating arms 8B, 8B, the rotating arms 8B, 8B basically do not come into contact with the second shaft portion 52. However, when the door 7 is rapidly lowered, the lower surfaces of the rotating arms 8B, 8B come into contact with the upper surface of the second shaft portion 52, and the rotating arms 8B, 8B push down the second shaft portion 52 to move the arms. The door 7 provided integrally with the receiving portion 50 is moved downward.

In the dishwasher 1 of the first embodiment, as shown in FIG. 3B, the arm receiving portion 50 is configured by the first shaft portion 51, the second shaft portion 52, the connecting portion 53, and the collar member 55. Therefore, the number of parts can be reduced as compared with the arm receiving portion configured by the link mechanism or the like. This allows the arm receiving portion 50 to have a simple structure. Further, since the first shaft portion 51 is provided with the collar member 55 rotatable with respect to the first shaft portion 51, it is possible to rotate the rotating arms 8B and 8B when the door 7 is moved up and down. Sliding contact between the moving arms 8B, 8B and the arm receiving portion 50 can be suppressed. As a result, it is possible to suppress wear of the components due to the above-mentioned sliding contact, so that durability can be improved.

Here, when the collar member 55 is not externally attached to the first shaft portion 51, the first shaft portion 51 slides on the outer peripheral surface of the rotating arm 8B toward the base end side of the rotating arm 8B. When the first shaft portion 51 slides on the outer peripheral surface of the rotating arm 8B toward the base end side of the rotating arm 8B, problems such as wear occur. Further, when the first shaft portion is subjected to a surface treatment that enhances slidability, the function is deteriorated due to aging. In this case, a strong force is required to move the handle 8A up and down. Furthermore, abnormal noise may occur due to the sliding contact between the first shaft portion 51 and the rotating arm 8B. In the first embodiment, as described above, since the rotatable collar member 55 is externally fitted to the first shaft portion 51, the first shaft portion 51 slides on the outer peripheral surface of the rotating arm 8B toward the base end side. There is nothing to do. Therefore, it is possible to prevent the occurrence of defects due to wear and aging.

In the dishwasher 1 of the first embodiment, the rotating shaft is rotatably provided around the first shaft portion 51 with the extending direction of the first shaft portion 51 as the rotation axis, and is externally inserted to the first shaft portion 51. A collar member 55 is used. With this configuration, the rotating portion can be easily configured.

In the dishwasher 1 of the first embodiment, the first shaft portion 51 and the second shaft portion 52 are provided so as to sandwich the rotating arm 8B in the vertical direction. With this configuration, it is easy to efficiently transmit both the pivoting movement of the pivoting arm 8B from the lower side to the upper side and the pivoting movement from the upper side to the lower side as the lifting movement of the door 7.

In the dishwasher 1 of the first embodiment, the arm receiving portion 50 is integrally formed with the first shaft portion 51, the second shaft portion 52, and the connecting portion 53. Accordingly, the movement of the rotating arm 8B and the movement of the door 7 can be performed by a simple work of simply attaching the arm receiving portion 50 to the side surface 7a of the door 7 so as to sandwich the rotating arm 8B. And can be linked.

In the dishwasher 1 of the first embodiment, the collar member 55 is formed of a resin material having a high slidability such as an ultra high molecular weight polyethylene (UHMWPE) resin, a polyacetal (POM) resin, or a high density polyethylene (HDPE) resin. Has been done. As a result, even if the collar member 55 does not rotate due to some trouble, the rotating arms 8B and 8B and the arm receiving portion when transmitting the rotating motion of the rotating arms 8B and 8B to the up-and-down movement of the door 7. Friction with 50 can be suppressed. As a result, it is possible to suppress the wear of the parts due to the above-mentioned friction, so that the durability of the arm receiving portion can be improved.

(Second embodiment)
Next, the second embodiment will be described mainly with reference to FIG. In the second embodiment, only the parts different from the first embodiment will be described in detail, and the description of the same parts will be omitted. In the dishwasher 1 of the first embodiment, the example in which the arm receiving portion 50 having the configuration in which the collar member 55 as the rotating member is externally inserted is attached to the first shaft portion 51 has been described. The dishwasher 1 according to 1. is made of ultra-high molecular weight polyethylene (UHMWPE) resin, polyacetal (POM) resin, or high-density polyethylene (HDPE) resin instead of the first shaft portion 51 made of ABS resin, PP resin, or the like. A first shaft portion 151 made of a highly slidable material is provided, and as shown in FIGS. 6A and 6B, the first shaft portion 151 has a collar member as a rotating member. Is provided with an arm receiving portion 150 that is not externally inserted. Since the configurations of the second shaft portion 52, the connecting portion 53, and the bolt 57 are the same as those in the first embodiment, detailed description thereof will be omitted.

In the dishwasher 1 according to the modified example including the arm receiving portion 150, the arm receiving portion 150 includes the first shaft portion 151, the second shaft portion 52, and the connecting portion 53, as shown in FIG. 3B. Therefore, the number of parts can be reduced as compared with the arm receiving portion configured by the link mechanism or the like. This allows the arm receiving portion 150 to have a simple structure. Further, since the first shaft portion 151 is formed of a highly slidable material that enhances the slidability with the rotating arms 8B and 8B, the rotating movement of the rotating arms 8B and 8B is moved up and down in the door 7. It is possible to suppress the friction between the rotating arms 8B, 8B and the arm receiving portion 150 at the time of transmission to the. As a result, the wear of the component due to the friction can be suppressed, and thus the durability of the arm receiving portion 150 can be improved.

Although one embodiment of the present invention has been described above, the present invention is not necessarily limited to the above-described first embodiment and second embodiment, and various modifications can be made without departing from the gist thereof. is there.

In the first and second embodiments, the example in which the first shaft portion 51 and the second shaft portion 52 are provided as the shaft portion extending so as to project from the side surface 7a of the door 7 has been described. Alternatively, only one shaft portion may be provided. In this case, the shaft portion is provided at a position in contact when rotating the rotating arm 8B from below to above. Similar to the first shaft portion 51 of the first embodiment, a collar member is externally inserted to the shaft portion, and is a tip end of the shaft portion provided with a restricting member that restricts the collar member from coming out of the shaft portion? Alternatively, the shaft portion is made of a highly slidable material like the first shaft portion 151 of the second embodiment.

In the above-described first embodiment, the collar member 55 has been described as an example in which it is externally inserted only in the first shaft portion 51, but it may be externally inserted in the second shaft portion 52 as well.

In the above-described first embodiment, an example in which the collar member 55 formed of a highly slidable material is rotatably provided on the first shaft portion 51 of the arm receiving portion 50 has been described. 55 may be non-rotatably provided on the first shaft portion 51. The collar member 55 may be fixed by being press-fitted into the first shaft portion 51, or may be fixed by an adhesive or the like.

With such a configuration, it is possible to obtain the same effect as in the configuration in which the first shaft portion 151 itself is formed of a highly slidable material like the arm receiving portion 150 of the second embodiment. That is, it is possible to suppress friction between the rotary arms 8B and 8B and the arm receiving portion 50 when transmitting the rotary motion of the rotary arms 8B and 8B to the up-and-down motion of the door 7. With this configuration, the first shaft portion 51 of the arm receiving portion 50, at least the outer surface of which is made of a highly slidable material, can be easily configured. As with the first shaft portion 151, a collar member formed of a highly slidable material may be externally inserted in the second shaft portion 52.

In the second embodiment, the UHMWPE resin, the POM resin, or the HDPE resin has been described as an example of the highly slidable material, but the slidability with the rotating arms 8B, 8B can be enhanced. The material is not limited to these. Examples of other highly slidable materials include polyamide (PA) resin, polytetrafluoroethylene (PTFE) resin, polyphenylene sulfide (PPS) resin, and polyether ether ketone (PEEK) resin. It is preferable that a material having a slidability with respect to the rotating arms 8B, 8B that is higher than that of the ABS resin or the PP resin is selected as the highly slidable material.

In the first embodiment, the second embodiment, and the modified example, the rotation arm is provided so as to be rotatable around the first shaft portion 51 (shaft portion) as the rotation axis around the first shaft portion 51. The example in which the collar member 55 is provided as the rotating portion that comes into contact with the rotating arms 8B and 8B when the 8B and 8B are rotated has been described, but the invention is not limited thereto. For example, instead of the configuration of the first shaft portion 51 and the collar member 55, a configuration is provided in which a roller member including a rotation shaft extending so as to project from the side surface 7a of the door 7 and a columnar member that rotates together with the rotation shaft is provided. Good. Even with this configuration, it is possible to suppress the sliding contact between the rotating arms 8B and 8B and the arm receiving portion 50 when transmitting the rotating motion of the rotating arms 8B and 8B to the up-and-down movement of the door 7.

In the first embodiment, the second embodiment, and the modified example, the door 7 having a U-shaped cross-section when viewed from above is taken as an example, and the handle 8A and the handle 8A are provided along the outer surface of the door 7. The moving arms 8B, 8B have been described with reference to an example in which they are arranged in a U shape, but the present invention is not limited to this. For example, the handle 8A and the rotating arm 8B may have any shape such as being arranged in an L shape. Further, for example, the present invention is applied to a washing machine having a door having an L-shaped cross-section viewed from above, and a so-called two-way open type door having a door and a main body to define a washing chamber. You can also In this case, a door having an L-shaped arm receiving portion that receives at least an upward rotary motion of a rotary arm that rotates about a part of the main body side as a rotary shaft (an L-shaped door formed from two side surfaces). One side of the door).

The present invention may appropriately combine the contents described as the first embodiment, the second embodiment, the modified example and other modified examples without departing from the spirit of the invention.

DESCRIPTION OF SYMBOLS 1... Dishwasher (washing machine), 2... Washer main body, 6... Prop, 7... Door, 7a... Side, 8A... Handle, 8B... Rotating arm, 50,150... Arm receiving part, 51, 151... 1st shaft part (shaft part), 52... 2nd shaft part (shaft part), 53... connection part, 55... collar member (rotating part), 57... bolt, S... area.

Claims (7)

A lid that is provided to be movable in the vertical direction with respect to the main body of the washing machine, while defining a part of a washing chamber for washing the article to be washed.
A rotating arm that is arranged along the outer surface of the lid and that is rotatably provided with the base end supported by the main body of the washing machine as a rotating shaft.
An arm receiving portion that is provided on the lid body and that receives the rotating arm that moves in the rotating direction and moves the lid body in the up-and-down direction;
The arm receiving portion is
A shaft extending so as to project from the outer surface of the lid,
A cleaning unit that is rotatably provided around the shaft unit with the extending direction of the shaft unit as a rotation shaft and that contacts the rotation arm when the rotation arm rotates. Machine. The washing machine according to claim 1, wherein the rotating portion is an external insertion member externally attached to the shaft portion. The shaft portion has a first shaft portion and a second shaft portion arranged so as to sandwich the rotating arm in the vertical direction,
The first shaft portion is provided above the second shaft portion in the vertical direction,
The washing machine according to claim 1, wherein the rotating portion is provided on the first shaft portion. A lid that is provided to be movable in the vertical direction with respect to the main body of the washing machine, while defining a part of the washing chamber for washing the object
A rotating arm that is arranged along the outer surface of the lid and is rotatably provided with a base end portion supported by the main body of the washing machine as a rotating shaft.
An arm receiving portion that is provided on the lid body and that receives the rotating arm that moves in the rotating direction and moves the lid body in the up-and-down direction;
The arm receiving portion extends so as to project from the outer surface of the lid,
A washing machine in which at least an outer surface of the arm receiving portion is formed of a highly slidable material that enhances slidability with the rotating arm. The washing machine according to claim 4, wherein at least an outer surface of the arm receiving portion is formed of the highly slidable material made of an ultra high molecular weight polyethylene resin, a polyacetal resin, or a high density polyethylene resin. The arm receiving portion is
A shaft extending so as to project from the outer surface of the lid,
An externally inserted member externally attached to the shaft portion,
The washing machine according to claim 4, wherein the outer insertion member is formed of the highly slidable material. The arm receiving portion has a first shaft portion and a second shaft portion arranged so as to sandwich the rotating arm in the vertical direction,
The first shaft portion is provided above the second shaft portion in the vertical direction,
The washing machine according to any one of claims 4 to 6, wherein at least an outer surface of the first shaft portion is formed of the highly slidable material.

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