Drum-type washing machine

Abstract

The invention provides a drum-type washing machine which can prevent clothes from protruding out of a rotating groove and can reduce friction on the clothes. The washing machine includes: a housing having an opening in a front surface; the water tank is supported in the shell; a water tank opening fixed to the front side of the water tank, the front surface of the water tank opening facing the opening; and a rotating tank rotatably provided in the water tank. The rotating groove has a rotating groove opening portion that opens toward the opening portion, and is disposed so that a gap is provided over the entire circumference between the rotating groove opening portion and the water tank opening portion. The opening part of the water tank is provided with a protruding part, and the protruding part is vertically arranged towards the back side at the position closer to the inner peripheral side than the gap. The protruding part is formed in the area of the upper half part of the opening part of the water tank.

Description

Technical Field

[0001] The present disclosure relates to a drum type washing machine. Background Art

[0002] In a drum washing machine in which the rotation axis of the drum (rotation tank) is a horizontal axis or an inclined axis, if the opening (clothing removal port) in front of the drum is enlarged, the clothes are likely to come out of the drum.

[0003] If the dehydration process is performed while the clothes are emerging from the drum, the non-rotating parts outside the drum may rub against the clothes, causing damage to the clothes.

[0004] Japanese Patent Application Laid-Open No. 2005-137641 discloses a configuration in which, in order to prevent clothes from coming out, a protrusion is provided below the drum opening to push the clothes that have come out back into the groove. Summary of the invention

[0005] In the configuration of Japanese Patent Application Laid-Open No. 2005-137641, since the protrusions are provided at the bottom, the protrusions come into contact with the clothes even in processes other than the dehydration process (such as washing, rinsing, and drying processes), causing unnecessary friction on the clothes.

[0006] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a drum-type washing machine that can prevent clothes from coming out of a rotary tub and can reduce friction on the clothes.

[0007] In order to solve the above-mentioned problems, the drum washing machine disclosed in the present invention includes: a shell having an opening at the front; a water tank supported in the shell; a water tank opening fixed to the front side of the water tank and opening at the front toward the opening; and a rotating tank rotatably arranged in the water tank, wherein the rotating tank has a rotating tank opening opening opening toward the opening, and is configured such that a gap is provided on the entire circumference of the rotating tank opening and the water tank opening, and a protrusion is provided on the water tank opening, and the protrusion is erected toward the back side at a position closer to the inner circumference than the gap, and the protrusion is formed in the area of ​​the upper half of the water tank opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a perspective view showing the appearance of the washing machine according to the embodiment of the present disclosure in a state where the door is closed. Figure 2 It is a perspective view showing the appearance of the washing machine with its door opened. Figure 3 It is a front view which shows the water tank provided inside the washing machine. Figure 4It is an exploded perspective view showing the water tank and the annular cover. Figure 5 This is a partial cross-sectional view showing an enlarged view of a main part of the front side of the water tank. Figure 6 This is a perspective view of the annular cover portion as viewed from the back side. Figure 7 This is an enlarged perspective view of the vicinity of the protrusion in the annular cover portion as viewed from the front side. Figure 8 This is an enlarged rear view of the vicinity of the protrusion in the annular cover. Fig. 9 This is an enlarged perspective view of Modification 1 of the annular cover portion as viewed from the front side. Fig.10 This is an enlarged perspective view of Modification 1 of the annular cover portion as viewed from the back side. Fig.11 This is an enlarged perspective view of Modification 2 of the annular cover portion as viewed from the front side. Fig.12 This is an enlarged perspective view of Modification 2 of the annular cover portion as viewed from the back side. Fig.13 This is an enlarged perspective view of Modification 3 of the annular cover portion as viewed from the front side. Fig.14 This is an enlarged perspective view of Modification 4 of the annular cover portion as viewed from the front side. Fig.15 This is an enlarged perspective view of Modification 5-1 of the annular cover portion as viewed from the front side. Fig.16 This is an enlarged stereoscopic view of the modified example 5-2 of the annular cover portion as viewed from the front side. Fig.17 This is an enlarged stereoscopic view of the modified example 5-3 of the annular cover portion as viewed from the front side. Fig.18 This is an enlarged stereoscopic view of the modified example 6-1 of the annular cover portion as viewed from the front side. Fig.19 This is an enlarged stereoscopic view of the modified example 6-2 of the annular cover portion as viewed from the front side. DETAILED DESCRIPTION

[0009] [First embodiment] Hereinafter, a drum-type washing machine according to an embodiment of the present disclosure will be described with reference to the drawings. Figure 1 and Figure 2 1 is a perspective view showing the appearance of a washing machine 1 according to the present embodiment. Figure 1 The state in which the door 2 is closed is shown. Figure 2The state of opening the door 2 is shown. In addition, for the convenience of description, the side of the washing machine 1 provided with the door 2 is referred to as the front side F, and the opposite side is referred to as the back side R (or the back side) for description, but the installation mode and the use mode of the washing machine 1 are not limited thereby.

[0010] In addition, in the present invention, "washing machine" refers to a whole device that performs various treatments such as washing on laundry. The laundry treatments of the washing machine include washing, drying, deodorization, sterilization, etc. The laundry is not particularly limited. As laundry, for example, cloth products can be listed. Specific examples of laundry include, for example, clothing such as clothes, hats, gloves, shoes, bags, handkerchiefs, towels and other personal belongings, curtains, blankets, towels, quilt covers and other bedding, carpets, plush toys, etc.

[0011] The washing machine 1 includes a door 2 on the front side F of the housing 10 , and when the door 2 is opened, the opening 111 of the housing 10 is exposed.

[0012] like Figure 1 As shown, the door 2 integrally includes a door body 21 that is substantially rectangular when viewed from the front and an inclined upper portion 22 that is arranged in a manner inclined backward from the upper portion of the door body 21. The inclined upper portion 22 is provided with a display operation portion for selecting an operation action, inputting an instruction, and displaying an operation status.

[0013] like Figure 2 As shown, an opening 111 for washing is provided in front of the housing 10. The door 2 is arranged to be rotatable relative to the housing 10 in a hinged manner, so that the opening 111 can be opened and closed. A seal 112 formed of an elastic body such as rubber or soft resin is provided at the periphery of the opening 111. When the door 2 is closed, a window member 23 having a substantially truncated cone shape provided on the back side of the door 2 is in close contact with the seal 112, and the water tank 3 is kept liquid-tight and air-tight. The water tank 3 and the rotating tank 4 described later are provided inside the housing 10 and open toward the opening 111.

[0014] Figure 3 This is a front view showing the water tank 3 provided inside the housing 10, omitting the housing 10 and its peripheral components. Figure 4 It is an exploded perspective view showing the water tank 3 and the annular cover 5 .

[0015] The housing 10 includes a water tank 3 and a rotating tank 4 which is a rotating drum having a bottomed cylinder shape. Figure 3 As shown, the water tank 3 has a water tank opening 31 on the front side F. The water tank opening 31 opens toward the opening 111 of the housing 10. The water tank 3 is elastically supported in the housing 10 by a plurality of dampers (not shown).

[0016] like Figure 4As shown, an annular cover 5 is installed on the front side F of the water tank opening 31. The annular cover 5 is formed in an annular shape and has a substantially funnel-shaped curved wall 51 whose inner diameter gradually decreases from the front side F toward the back side R. The curved wall 51 is provided on the inner peripheral side of the annular cover 5. The end of the inner peripheral side of the curved wall 51 is provided as the inner peripheral edge 52 of the annular cover 5, and the inner peripheral edge 52 is formed by a smaller diameter than the outer peripheral edge 53 of the annular cover 5. In addition, the annular cover 5 is configured to cover the above-mentioned seal 112 from the back side to prevent the clothes from contacting the seal 112 when the rotating tank 4 rotates. In addition, in the present embodiment, the annular cover 5 is installed on the water tank opening 31, but it can also be configured without the annular cover 5. In this case, the structure provided on the annular cover 5 can be directly formed on the water tank opening 31, or it can be separately installed on the water tank opening 31.

[0017] In the washing machine 1 of the present embodiment, the rotation axis X of the rotary tub 4 (see Figure 5 ) is set at an inclined angle θ relative to the horizontal direction, for example, so that the front side F is higher than the back side R (inclined upward toward the front). In addition, the rotation tank 4 can also be configured so that the rotation axis X is approximately parallel to the horizontal direction.

[0018] Figure 5 This is a partial cross-sectional view showing an enlarged main portion of the front side F of the water tank 3, corresponding to Figure 3 Section II in the figure. Figure 5 As shown, the rotary tub 4 in the water tub 3 has a rotary tub opening 41 on the front side F which is opened for taking out the laundry such as clothes put therein.

[0019] A water tank front cover 32 is provided on the front side F of the water tank 3, and the annular cover 5 is mounted via the water tank front cover 32. That is, the water tank front cover 32 and the annular cover 5 constitute the water tank opening 31 (see Figure 4 The annular cover 5 is provided with a curved wall 51 extending inwardly, and the outer peripheral side is covered by the water tank front cover 32. The rotating tank 4 is formed with a diameter slightly smaller than that of the water tank 3, and is driven to rotate in the water tank 3 by a drum motor (not shown) provided on the back side R of the water tank 3.

[0020] like Figure 5 As shown, the rotating tank opening 41 of the rotating tank 4 is configured with a gap G provided on the entire circumference between the rotating tank opening 31. More specifically, the rotating tank opening 41 is provided with a throttle portion 42 having a substantially funnel-shaped curved surface whose inner diameter gradually decreases from the back side R toward the front side F, and the gap G is formed between the inner peripheral edge 52 of the annular cover portion 5 provided at the water tank opening 31 and the inner peripheral edge 421 of the throttle portion 42 provided at the rotating tank opening 41. The gap G is formed in an annular shape on the entire circumference of the water tank 3 and the rotating tank 4.

[0021] In the washing machine 1, the water tank 3 supported by the housing 10 and not rotating supports the rotating tank 4 rotating inside. In addition, the annular cover 5 installed on the water tank 3 (water tank front cover 32) is also a non-rotating component. Therefore, during the operation of the washing machine 1 (during the rotation of the rotating tank 4), when the clothes fly out to the outside of the rotating tank 4 (towards the front of the rotating tank opening 41), the clothes are rotated in a state of contact with the annular cover 5, thereby generating friction between the clothes and the annular cover 5. In addition, in some cases, the clothes enter the gap G, and friction may also be generated in the gap G. In the dehydration process in which the rotating tank 4 rotates at a high speed, if friction with the annular cover 5 is generated, it may cause damage to the clothes.

[0022] In the washing machine 1 of the present embodiment, when the clothes come out of the rotary tub 4 and contact the annular cover 5 during the dehydration process, the contact can be quickly eliminated. This configuration will be described in detail below.

[0023] Figure 6 3D is a perspective view of the annular cover 5 as viewed from the back side R. Figure 5 and Figure 6 As shown, the annular cover 5 is provided with a protrusion 54 erected toward the back side R (ie, toward the rotation groove opening 41). Specifically, the annular cover 5 has a flange 55 extending further toward the inner peripheral side than the inner peripheral edge 52 (see Figure 3 ), the protrusion 54 is erected on the back of the flange 55. In addition, the annular cover 5 can also be composed of two parts: an annular main body part 50A and an accessory part 50B installed on the back side of the main body part 50A by screw fastening, etc., and the protrusion 54 is provided in the accessory part 50B.

[0024] During the dehydration process of the washing machine 1, the clothes that emerge from the rotating tank 4 and are rotated while in contact with the annular cover 5 are peeled off from the annular cover 5 by the protrusion 54 and pushed back into the rotating tank 4. Thus, the clothes can be prevented from emerging from the rotating tank 4 during the dehydration process, and the friction between the clothes and the annular cover 5 can be suppressed, thereby suppressing the damage of the clothes.

[0025] In this embodiment, the protrusion 54 is formed in the upper half of the water tank opening 31. Figure 3 As shown, the protrusion 54 is provided above the horizontal line L1 passing through the center O of the water tank opening 31. In the washing machine 1, except for the dehydration process (washing, rinsing, drying process, etc.), since the rotation speed of the rotary tank 4 is low, the clothes fall due to gravity during the rotation and do not rotate together with the rotary tank 4. Therefore, by providing the protrusion 54 on the upper half of the water tank opening 31, the friction between the clothes and the protrusion 54 can be avoided or suppressed except for the dehydration process.

[0026] In addition, when the rotating tank 4 is inclined in an upward manner toward the front, if the clothes peeled off by the protrusion 54 at the upper part of the rotating tank 4 fall almost directly below due to the action of gravity, the clothes are guided to the deep part of the rotating tank 4 by the fall. That is, it is possible to prevent the clothes peeled off by the protrusion 54 from contacting the annular cover 5 again. Therefore, after the clothes are peeled off by the protrusion 54, the dehydration process can be continued well.

[0027] In addition, the protrusion 54 is more preferably provided above the upper slope 231 of the window member 23 of the door 2. Figure 2 As shown, a substantially flat upper slope 231 is provided on the upper portion of the window member 23, which is inclined in a manner descending from the front toward the rear when the door 2 is closed. The protrusion 54 is arranged above the upper slope 231, which means that the protrusion 54 is arranged above the horizontal line L2 that coincides with the upper side of the upper slope 231.

[0028] The protrusion 54 is arranged above the upper inclined surface 231 of the window member 23, thereby increasing the distance between the protrusion 54 and the window member 23. Thus, the clothes peeled off by the protrusion 54 are not easily caught between the protrusion 54 and the window member 23, and the clothes are easily returned to the rotating tank 4.

[0029] Furthermore, the protrusion 54 is preferably arranged at a position (rising side) where the clothes are lifted up as the rotary tub 4 rotates for dehydration. Thus, the protrusion 54 has the effect of peeling the clothes that are being lifted off from the annular cover 5. In this case, gravity also acts in the direction of the peeling of the clothes that are peeled off by the protrusion 54, so that the clothes can be well peeled off. In addition, in the washing machine 1, the rotation direction of the rotary tub 4 during the dehydration process (dehydration rotation direction) is fixed in one direction. Figure 3 , 6 In 8, the dehydration rotation direction is indicated by arrow A.

[0030] In addition, an LED (not shown) for lighting the inside of the rotating tank 4 and a circulation nozzle (not shown) for discharging circulating water into the rotating tank 4 during the washing process are installed on the back side of the annular cover 5. These LEDs and the circulation nozzle are generally arranged in the upper half of the water tank opening 31, similarly to the protrusion 54. In the case where the protrusion 54, the LED and the circulation nozzle are arranged in the area of ​​the upper half of the water tank opening 31, the protrusion 54 is preferably arranged in the area on the upstream side of the spin direction than the LED and the circulation nozzle. Figure 6 In FIG. 1 , region B is exemplified as the location where the LED units are arranged.

[0031] The LED and the circulation nozzle may be shaped so as to easily catch clothes during the dehydration process. However, by arranging the protrusion 54 upstream of the LED and the circulation nozzle in the dehydration rotation direction, the risk of clothes catching the LED and the circulation nozzle can be reduced.

[0032] In addition, if Figure 5 As shown, preferably, the top end (top end on the back side) of the protrusion 54 in the front-to-back direction (product depth direction) is located at a position further inward than the entire circumference of the above-mentioned gap G. That is, the top end of the protrusion 54 is located further inward than the vertical line L3 passing through the innermost part of the entire circumference of the gap G (the upper end of the gap G when the rotating tank 4 is inclined upward). In this way, by making the top end of the protrusion 54 located further inward than the entire circumference of the gap G, even if the clothes are peeled off after the rotating tank 4 rotates at a certain high speed during the dehydration process, the risk of the clothes coming out of the rotating tank 4 can be reduced.

[0033] [Second embodiment] In this embodiment, a configuration in which the protrusion 54 enhances the clothing peeling effect will be described. Figure 7 This is an enlarged perspective view of the vicinity of the protrusion 54 in the annular cover portion 5 as viewed from the front side. Figure 8 It is an enlarged rear view of the vicinity of the protrusion 54 in the annular cover portion 5 .

[0034] like Figure 7 As shown, on the annular cover portion 5, a first guide surface (protrusion guide surface) 56 is provided on the upstream side of the protrusion 54 close to the dehydration rotation direction. The first guide surface 56 is a surface that guides the clothes moving along the annular cover portion 5 to the side of the protrusion 54. In addition, in the present embodiment, the first guide surface 56 can be a part of the above-mentioned curved wall 51. Specifically, the curved wall 51 is not continuously connected to the side of the above-mentioned flange portion 55, and near the upstream side of the protrusion 54, the curved wall 51 is discontinuous with respect to the side of the flange portion 55, thereby the clothes moving along the curved wall 51 are guided to contact the upstream side of the protrusion 54. That is, the terminal portion of the curved wall 51 near the upstream side of the protrusion 54 can be used as the first guide surface 56.

[0035] The first guide surface 56 is provided so that its inner peripheral edge 561 is located at a position closer to the outer peripheral side than the protrusion 54. Figure 8 As shown, when a circumferential line (coaxial with the water tank opening 31 ) obtained by extending the inner peripheral edge 561 of the first guide surface 56 is defined as L4 , the protrusion 54 is located on the inner peripheral side of the circumferential line L4 .

[0036] By providing such a first guide surface 56, when there are clothes that are rotated in a state of contacting the annular cover portion 5 during the dehydration process, Figure 7As shown by the thick arrow, the clothes are guided to the protrusion 54 along the first guide surface 56, and are reliably peeled off from the annular cover 5 by contacting the side of the protrusion 54. In addition, since the protrusion 54 is located at a position closer to the inner peripheral side than the inner peripheral edge 561 of the first guide surface 56, the clothes peeled off from the annular cover 5 are easily guided to the inner side of the rotating tank 4.

[0037] In addition, the side surface on the upstream side of the rotation direction of the flange portion 55 is formed as a second guide surface 57. The second guide surface 57 is gently inclined in a manner extending from the upstream to the downstream in the dehydration rotation direction toward the inner peripheral side. The second guide surface 57 can slowly guide a part of the clothes that are rotated in contact with the annular cover portion 5 to the inner peripheral side near the protrusion 54, and can reduce the collision of the clothes with the protrusion 54. As a result, damage caused by the collision of the clothes with the protrusion 54 can be reduced.

[0038] [Third embodiment] In the present embodiment, a configuration for more reliably returning the clothes peeled off by the protrusion 54 to the rotary drum 4 will be described.

[0039] like Figure 8 As shown, on the annular cover 5, a guide portion 58 is provided on the outer peripheral side of the protrusion 54. More specifically, the guide portion 58 is arranged at a position further away from the outer peripheral edge of the protrusion 54 toward the outer peripheral side. In addition, the guide portion 58 is arranged at a position closer to the outer peripheral side than the inner peripheral edge 52 of the annular cover 5 forming the gap G. The guide portion 58 is a rib erected toward the back side R, and has an inclined portion 581 inclined toward the inner peripheral side from the upstream toward the downstream in the dehydration rotation direction.

[0040] The guide portion 58 has the effect of returning the clothes accidentally entering the outer peripheral side of the protrusion 54 to the inner peripheral side. Through this effect, even if the clothes that hit the upstream side side of the protrusion 54 invade the outer peripheral side of the protrusion 54, they can be guided into the rotating tank 4.

[0041] [Modification of the annular cover 5] The annular cover 5 described above is an example in the drum-type washing machine of the present disclosure, and various modifications are conceivable for the annular cover 5. Modifications 1 to 6 are shown below as part of the modifications of the annular cover 5.

[0042] [Modification 1] Fig. 9 This is an enlarged perspective view of Modification 1 of the annular cover portion 5 as viewed from the front side. Fig.10 This is an enlarged perspective view of Modification 1 of the annular cover portion 5 as viewed from the back side.

[0043] Modification 1 is an example in which the protrusion 54 is simply formed on the annular cover 5. In Modification 1, the annular cover 5 is formed of a single member, and the protrusion 54 is formed to stand directly from the tip (inner peripheral end) of the flange 55.

[0044] [Modification 2] Fig.11 This is an enlarged perspective view of Modification 2 of the annular cover portion 5 as viewed from the front side. Fig.12 This is an enlarged perspective view of a second modification of the annular cover portion 5 as viewed from the back side.

[0045] In Modification 2, the curved wall 51 is continuously formed along the edge of the flange 55 on the upstream side of the protrusion 54 in the dehydration rotation direction. In this configuration, the continuous surface of the curved wall 51 and the side surface of the flange 55 does not have the function of guiding the clothes moving along the surface to the protrusion 54. That is, Modification 2 is a configuration without a guide surface for guiding the clothes to the protrusion 54.

[0046] In addition, Fig.12 In the figure, the annular cover portion 5 is composed of two parts, but in the modification 2, the annular cover portion 5 can also be composed of one part. Similarly, in the modifications 3 to 6 described later, the annular cover portion 5 can also be composed of one part.

[0047] [Variation 3] Fig.13 This is an enlarged stereoscopic view of the modification example 3 of the annular cover 5 as viewed from the front side. In the modification example 3, the curved wall 51 is continuously formed along the edge of the flange 55 on the upstream side of the protrusion 54 in the dehydration rotation direction. However, in the modification example 3, compared with the modification example 2, the continuous surface of the curved wall 51 and the side surface of the flange 55 is formed to be more smoothly connected. As a result, the collision of the clothes with the protrusion 54 can be reduced, and the damage caused by the collision of the clothes with the protrusion 54 can be reduced.

[0048] [Variation 4] Fig.14 This is an enlarged perspective view of a modification example 4 of the annular cover 5 as viewed from the front side. Compared with other modifications, the flange 55 of the modification example 4 is arranged further inside, and the thickness of the flange 55 in the depth direction is thinner. In this configuration, a larger distance between the flange 55 and the window member 23 of the door 2 can be obtained.

[0049] [Variation 5] Fig.15 This is an enlarged perspective view of a modification 5-1 of the annular cover portion 5 as viewed from the front side. Fig.16 This is an enlarged perspective view of a modification 5-2 of the annular cover portion 5 as viewed from the front side. Fig.17 This is an enlarged perspective view of a modification 5-3 of the annular cover portion 5 as viewed from the front side.

[0050] Modifications 5-1 to 5-3 are structures in which the thickness of the flange 55 in the depth direction is gradually thinned from the upstream side to the downstream side. In this structure, the total thickness of the flange 55 and the protrusion 54 can be ensured, and the distance between the flange 55 and the window member 23 of the door 2 can be ensured. In addition, in modifications 5-1 to 5-3, by ensuring the total thickness of the flange 55 and the protrusion 54, the effect of pushing the clothes peeled off by the protrusion 54 back to the rotating tank 4 side is increased.

[0051] [Variation 6] Fig.18 This is an enlarged perspective view of a modification 6-1 of the annular cover portion 5 as viewed from the front side. Fig.19 This is an enlarged perspective view of a modification 6-2 of the annular cover portion 5 as viewed from the front side.

[0052] Modifications 6-1 and 6-2 are configured such that a cutout is provided in the curved wall 51 just before the upstream side of the protrusion 54 in the spin-drying rotation direction, and the surface formed by the cutout is used as a first guide surface 56 for guiding the clothes toward the protrusion 54. Fig.18 as well as Fig.19 As shown, by adjusting the shape and size of the cutout forming the first guide surface 56 , the strength with which the clothes hit the protrusion 54 can be adjusted.

[0053] The embodiments disclosed herein are illustrative in all respects and should not be interpreted as limiting. Therefore, the technical scope of the present disclosure is not interpreted only by the above-mentioned embodiments but is defined by the description of the claims.

Claims

1. A drum-type washing machine, comprising: a housing having an opening at the front; a water tank supported in the housing; A water tank opening portion, which is fixed to the front side of the water tank and has a front side opening toward the opening portion; as well as A rotating tank is rotatably arranged in the water tank, The drum-type washing machine is characterized in that: The rotating tank has a rotating tank opening portion that opens toward the opening portion, and is configured such that a gap is provided over the entire circumference of the rotating tank opening portion and the water tank opening portion. The water tank opening is provided with a protrusion, and the protrusion is erected toward the back side at a position closer to the inner peripheral side than the gap. The protrusion is formed in the region of the upper half of the water tank opening.

2. The drum type washing machine according to claim 1, characterized in that: A truncated cone-shaped window member is provided on the back side of a door for opening and closing the opening of the housing. The window member has an upper inclined plane which is inclined downward from the front to the rear. The protrusion is provided above the upper inclined surface.

3. The drum type washing machine according to claim 1, characterized in that: On the back side of the water tank opening, an LED for lighting the interior of the rotating tank and a circulation nozzle for discharging circulating water into the rotating tank during the washing process are installed in the upper half of the water tank opening. The protrusion is provided in the region of the upper half of the water tank opening at the upstream side of the LED and the circulation nozzle in the dehydration rotation direction.

4. The drum type washing machine according to claim 1, characterized in that: The rear side tip of the protrusion is located further back than the entire circumference of the gap.

5. The drum type washing machine according to claim 1, characterized in that: The water tank opening is disposed on the upstream side of the protrusion in the dehydration rotation direction and has a protrusion guide surface for guiding the clothes moving along the water tank opening toward the side of the protrusion.

6. The drum type washing machine according to claim 1, characterized in that: The water tank opening is provided on the outer peripheral side of the protrusion and has a guide portion that pushes the clothes intruding on the outer peripheral side of the protrusion back to the inner peripheral side.

7. The drum type washing machine according to claim 1, characterized in that: An annular cover portion is provided, which is mounted on the front side of the water tank opening.

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