CN103526508A

CN103526508A - Washing machine

Info

Publication number: CN103526508A
Application number: CN201310284654.7A
Authority: CN
Inventors: 成宗勋; 李弘烈; 田光珉; 崔正上
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2012-07-06
Filing date: 2013-07-08
Publication date: 2014-01-22
Also published as: EP2682512A3; US20140009049A1; KR20140006647A; EP2682512A2

Abstract

Provided is a washing machine having an improved structure in which a door may be firmly supported not to sag even though the door is repeatedly opened/closed for a long term while a user uses the washing machine. The washing machine includes: a main body; an opening formed in a front side of the main body; a door that opens/closes the opening; and a hinge member that allows the door to be rotatably coupled to the front side of the main body. The hinge member includes: a hinge body coupled to the front side of the main body; at least one hinge arm that extends from the hinge body; and at least one stopper that protrudes from an outer side of the hinge arm. The door includes: at least one accommodation groove in which at least a portion of the hinge arm is accommodated; and a cover plate that covers the accommodation groove to support the hinge arm and has at least one protrusion that protrudes from an inner side of the cover plate toward the hinge arm. When the door opens the opening, the stopper and the protrusion are in contact with each other so that rotation of the door can be limited.

Description

Washing machine

Technical field

Embodiment relate to a kind of opening/closing washing machine clothing entrance door integrated structure.

Background technology

Roller washing machine is as the machine that uses electric power washing clothes, generally include store washings bucket, be rotatably installed in cylinder in bucket and for making the drive motors of drum rotating.When cylinder is put into while rotating under the state in cylinder at clothing and detergent water, clothing and cylinder and detergent water friction, thus the dirt on clothing can be removed.

The opening of putting into or take out clothing is formed on the front side of roller washing machine, and the door of opening/closing opening is used hinge member to be rotatably attached to the front side of roller washing machine.

When user is when using roller washing machine for a long time repeatedly during door, the impact that hinge member can apply because of the weight of door or when the opening/closing is damaged.The damage of hinge member causes the sagging of door, and this brings a lot of inconvenience to user when using roller washing machine.

Summary of the invention

In the one side of one or more embodiment, a kind of washing machine with improved structure is provided, wherein, though when user uses washing machine door repeatedly for a long time, door still can be stably supported and sagging not.

According to the one side of one or more embodiment, a kind of washing machine is provided, described washing machine comprises: main body; Opening, is formed on the front side of main body; Door, opening/closing opening; Hinge member, allows door to be rotatably attached to a front side for main body, and wherein, hinge member comprises: hinge body, is attached to the front side of main body; At least one hinge arms, extends from hinge body; At least one retainer, outstanding from the outside of described at least one hinge arms, wherein, door comprises: transparent component, user watches the inner side of cylinder by transparent component; Fixator member, transparent component is attached to fixator member, and fixator member has at least one pockets, and at least a portion of described at least one hinge arms is contained in pockets; Cover plate, cover described at least one pockets, to support described at least one hinge arms, and cover plate has from the inner side of cover plate towards at least one outstanding projection of described at least one hinge arms, wherein, when door is opened opening, described at least one retainer and described at least one projection contact with each other, thus the rotation of limiting door.

The first contact side can be arranged on one end of described at least one projection, the second contact side can be arranged on one end of described at least one retainer and can contact the first contact side, and the angle described in the direction that is parallel to the first contact side and the second contact side covers with cover plate between the direction of at least one pockets can be greater than 0 ° and be less than 90 °.

Cover plate can comprise that at least one projection that is used to form described at least one projection forms hole.

Hinge member can be used injection moulding manufactured, and the material of hinge member can be the engineering plastics that comprise glass fibre.

Described at least one hinge arms can comprise the first arm, the second arm extending obliquely from one end of the first arm extending from hinge body and the hinge axis vertically extending from the second arm, the distance from the pivot of hinge axis to one end of described at least one retainer can be than the pivot from hinge axis the distance to one end of described at least one projection.

According to the one side of one or more embodiment, a kind of washing machine is provided, described washing machine comprises: main body; Cylinder, is rotatably installed in main body; Clothing entrance, is formed on the front side of main body, by clothes entrance, clothing is put into cylinder; Hinge member, comprises the hinge body of the front side that is attached to main body towards the outside of clothing entrance and at least one hinge arms of extending from hinge body; Door, is rotatably attached to described at least one hinge arms, and with opening/closing clothing entrance, door comprises the holding portion of at least a portion of holding described at least one hinge arms; Retainer, outstanding from the outside of described at least one hinge arms, and contact with at least a portion of holding portion when door is opened clothing entrance, with the rotation of limiting door.

Holding portion can comprise from the inner side of holding portion towards the outstanding rotation restriction projection of described at least one hinge arms, and rotation restriction projection can contact with retainer and the rotation of limiting door.

Rotation restriction projection can be along the direction extruding retainer towards cylinder.

Door can comprise: transparent component, and user watches the inner side of cylinder by transparent component; Fixator member, transparent component is attached to fixator member, and fixator member has pockets, and at least a portion of described at least one hinge arms is contained in pockets, and pockets is formed in a side of fixator member; Cover plate, covers pockets and form holding portion together with pockets.

Hinge arms can comprise the first arm extending from hinge body, the second arm extending obliquely from one end of the first arm and vertically extend and as the hinge axis of the pivot of door from the second arm, and pockets can comprise and holds the first pockets of the second arm and intersect with the first pockets and hold the second pockets of hinge axis.

Retainer can be outstanding from the outside of the second arm, and cover plate can comprise from the outstanding rotation restriction projection of the interior side direction hinge arms of cover plate, and rotation restriction projection contacts with retainer and the rotation of limiting door.

Angle between the first virtual straight line of the pivot of connecting hinge chain rivet and one end of retainer and the pivot of connecting hinge chain rivet and the second virtual straight line of one end that is connected to the first arm of the second arm can be more than or equal to 90 ° and be less than or equal to 180 °.

Angle between the direction of retainer extruding rotation restriction projection and the direction that cover plate is attached to fixator member can be greater than 0 ° and be less than 90 °.

The place, both sides that retainer and the second arm can the 3rd straight line based on virtual be arranged on the 3rd virtual straight line, wherein, closes at door under the state of clothing entrance, and the 3rd virtual straight line parallel is in the pivot of cylinder and through the pivot of hinge axis.

The first contact side can be arranged on one end of rotation restriction projection, the second contact side can be arranged on one end of retainer, at door, open under the state of clothing entrance, the second contact side can contact the first contact side and can push the first contact side, is parallel to angle between the direction of the first contact side and the second contact side and direction that cover plate is attached to fixator member and can be greater than 0 ° and be less than 90 °.

Can be shorter to the distance of one end of retainer than the pivot from described at least one hinge arms to the distance of one end of rotation restriction projection from the pivot of described at least one hinge arms.

Material for hinge member can be engineering plastics.

It is 60% or higher glass fibre (GF) that hinge member can comprise content.

According to the one side of one or more embodiment, a kind of washing machine is provided, described washing machine comprises: main body, has opening; Door, opening/closing opening; Hinge member, is rotatably attached to main body by door, and wherein, hinge member comprises: hinge body, is attached to main body; Hinge arms, extends from hinge body; Retainer, outstanding from the outside of hinge arms, wherein, door comprises: transparent component, user watches the inner side of cylinder by transparent component; Fixator member, transparent component is attached to fixator member, and fixator member has pockets, and at least a portion of hinge arms is contained in pockets; Cover plate, covers pockets, and with bloster hinge chain arm, and cover plate has from the inner side of pockets towards the outstanding projection of hinge arms, and wherein, when door is opened opening, retainer and projection contact with each other, thus the rotation of limiting door.

Accompanying drawing explanation

By the description of embodiment being carried out below in conjunction with accompanying drawing, these and/or other aspect will become obviously and be easier to understand, in the accompanying drawings:

Fig. 1 is the perspective view illustrating according to the outward appearance of the washing machine of embodiment;

Fig. 2 is illustrated in a decomposition view for some elements of the state Xiamen of closing clothing entrance;

Fig. 3 is the decomposition diagram illustrating according to the door of the washing machine of embodiment;

Fig. 4 is the decomposition diagram illustrating according to the marriage relation between the hinge member of the washing machine of embodiment and door;

Fig. 5 is the decomposition view that is illustrated in the cover plate under door and the state that is bonded to each other of hinge member;

Fig. 6 is the decomposition diagram that the marriage relation between door and hinge member is shown;

Fig. 7 illustrates the view of Fig. 3 with different angles;

Fig. 8 is illustrated in door to close the state Xiamen of clothing entrance and the partial sectional view of the marriage relation between hinge member;

Fig. 9 is the zoomed-in view of the A part in Fig. 8;

Figure 10 is illustrated in door to open the state Xiamen of clothing entrance and the partial sectional view of the marriage relation between hinge member completely;

Figure 11 is the zoomed-in view of the B part in Figure 10.

The specific embodiment

Now, will describe embodiment in detail, its example is shown in the drawings, and label identical in accompanying drawing is indicated identical element all the time.

Fig. 1 is the perspective view illustrating according to the outward appearance of the washing machine of embodiment.

As shown in fig. 1, washing machine according to the present invention comprises: main body 10, forms outward appearance; Bucket (not shown), be arranged in main body 10, and washings is stored in bucket; Cylinder 12, can be rotatably set in barrel (not shown), with washing clothes.Control panel assembly 14 is arranged on the upper forepart office of main body 10, thereby user can control the operation of washing machine.Clothing entrance 16 is arranged on the front side of main body 10, and clothing can be put in cylinder 12 by clothing entrance 16, and door 100 is arranged on the front side of main body 10, with opening/closing clothing entrance 16.

Door 100 hinge members 200 that are rotatably attached on the front side that is arranged on main body 10.

Fig. 2 is illustrated in the decomposition view of some elements that door 100 is closed the state Xiamen 100 of clothing entrance 16, Fig. 3 is the decomposition diagram illustrating according to the door 100 of the washing machine of embodiment, Fig. 4 is the decomposition diagram illustrating according to the marriage relation between the hinge member 200 of the washing machine of embodiment and door 100, Fig. 5 is the decomposition view that is illustrated in door 100 and the state lower cover 140 that is bonded to each other of hinge member 200, Fig. 6 is the decomposition diagram that the marriage relation between door 100 and hinge member 200 is shown, and Fig. 7 illustrates the view of Fig. 3 with different angles.

If Fig. 2 is to as shown in Fig. 7, door 100 comprises: transparent component 110, and user can check by transparent component 110 inner side of cylinder 12; Fixator member 120, transparent component 110 is attached to fixator member 12, fixator member 120 has pockets 128, and pockets 128 is formed in a side of fixator member 120, and at least a portion of hinge member 200 is received and is combined in pockets 120; Lid member 130, the whole surface of covering fixator member 120; Cover plate 140, is arranged between fixator member 120 and lid member 130, and cover plate 140 has holding portion (seeing 125 in Fig. 9), and holding portion covers pockets 128 and hold at least a portion of hinge member 120 together with pockets 128.

Transparent component 110 is formed by clear glass or plastics, thereby user can understand washing operation.Transparent component 110 comprises: columnar transparent body 112, the open front of transparent body 112; Flange 114, the outer surface formation along transparent body 112, makes transparent component 110 can be incorporated into fixator member 120; Guiding piece 116, tilts at the rear portion of transparent body 112 and towards the washings that use in cylinder 12 guiding washing operations.

Fixator member 120 comprises: the retainer body 122，Qi center of disk shape is empty; Handle 124, is formed on the front side of stationary body 122 along the circumferencial direction of retainer body 122; Hinge joint divides 126, along the circumferencial direction of retainer body 122, is formed on the front side of retainer body 122 in the position relative with handle 124.

Hinge joint divides 126 to comprise at least one pockets 128 and in conjunction with rib 129, described at least one pockets 128 holds and in conjunction with at least a portion of hinge member 200, in conjunction with rib 129 side-prominent predetermined length from retainer body 122, thereby cover plate 140 can be incorporated in conjunction with rib 129.

Pockets 128 comprises the first pockets 128a and the second pockets 128b, at door 100, close under the state of clothing entrance 16, the second arm 220, the second pockets 128b that the first pockets 128a holds hinge member 200 hold the hinge axis 230 of hinge member 200.When the outside from retainer body 122 reaches predetermined length to the part of the medial cuts retainer body 122 of retainer body 122, form the first pockets 128a, the second pockets 128b intersects and is communicated with the first pockets 128a.The first pockets 128a is along the direction setting with ground almost parallel, and the second pockets 128b is along the direction setting substantially vertical with the first pockets 128a.

In conjunction with rib 129 along the circumferential elongation of retainer body 122 form and from retainer body 122 side-prominent predetermined length, thereby cover plate 140 can be incorporated in conjunction with rib 129.In addition, in conjunction with rib 129 side-prominent predetermined length from retainer body 122, thereby when 100 whens rotation of door, the load concentration of door 100 hinge joint thereon divides 126 rigidity to be reinforced.Therefore, door 100 can stably rotate and not occur sagging or damaged.

Lid member 130 forms the outward appearance of door 100, and is attached to fixator member 120, to cover the whole surface of fixator member 120.

The plastic material that can use lightweight and have a predetermined strength carries out injection moulding to transparent component 110, fixator member 120 and lid member 130.

Cover plate 140 is according to the shape setting corresponding in conjunction with rib 129 and along the axial direction that is parallel to cylinder 12, be attached to hinge joint and divide 126.Cover plate 140 comprises: a plurality of sweeps 142, and the outer end of sweep 142 is crooked, to cover hinge joint, divides 126; The 3rd pockets 144, a part for the second arm 220 and hinge axis 230 is accommodated in the 3rd pockets 144 in the position corresponding to the first pockets 128a and the second pockets 128b, thereby at door 100, close under the state of clothing entrance 16, cover plate 140 can not hinder the second arm 220 and the hinge axis 230 of hinge member 200; At least one rotation restriction projection 146, divides 126 outstanding predetermined lengths from the inner side of the 3rd pockets 144 towards hinge joint.

The 3rd pockets 144 forms the holding portion (seeing 125 in Fig. 9) of at least a portion of holding hinge member 200 together with the second pockets 128b with the first pockets 128a, in detail, the 3rd pockets 144 holds the second arm 220 together with the first pockets 128a, make cover plate 140 can not hinder the second arm 220, the 3rd pockets 144 holds hinge axis 230 together with the second pockets 128b, and door 100 can be rotated around hinge axis 230.

As will be described later, rotation restriction projection 146 contacts with the retainer 240 being formed on the second arm 220 of hinge member 200, and the rotation of limiting door 100, first contact side (seeing the 146a in Fig. 9) of the end 242 of contact retainer 240 is arranged on one end 146b of rotation restriction projection 146.The direction that forms the first contact side 146a is had and covers hinge joint with cover plate 140 and divide 126 direction to form the relation of predetermined angular.To provide its detailed description after a while.

Rotation restriction projection 146 can form hole 148 by projection and form.In order to form rotation restriction projection 146, first, can cut a part for the 3rd pockets 144, can be by the part of cutting the inside bend towards the 3rd pockets 144, form thus rotation restriction projection 146.

Hinge member 200 comprises the hinge body 202 of the front side that is attached to main body 10 towards the outside of clothing entrance 16 and at least one hinge arms 204 of extending from hinge body 202.

Hinge body 202 is set to roughly the plate forming along the circumferential elongation of door 100.Hinge body 202 comprises a plurality of fixing hole 202a, and hinge body 202 can be fixed to by fixing hole 202a the front side of main body 10.

At least two hinge arms 204 can be arranged on the upper and lower of hinge body 202.Hinge arms 204 comprises the first arm 210 from the front side definite length extended of hinge body 202, the second arm 220 extending obliquely from one end of the first arm 210 and vertically extends and as the hinge axis 230 of the pivot (seeing the C1 Fig. 9) of door 100 from the second arm 220.Can also between the first arm 210 and hinge body 202, arrange and strengthen rib 232, to strengthen the intensity of hinge member 200.

Retainer 240 is arranged on the 220a place, one end of the second arm 220.Retainer 240 is from the outer surface definite length extended of one end 220a of the second arm 220.In order to limit and 100 the rotation of rotating that restriction projection 146 contact, from the pivot C1(of door 100, the pivot C1 of hinge axis 230) long to the distance (seeing the D2 Fig. 9) of one end 146b of rotation restriction projection 146 than the pivot C1 from hinge axis 230 to the distance (seeing the D1 in Fig. 9) of one end 242 of obstacle 240.

As will be described later, retainer 240 contacts with the rotation restriction projection 146 that is formed on the place, inner side of the 3rd pockets 144, and the rotation of limiting door 100, the second contact side (seeing the 240a in Fig. 9) is arranged on one end (seeing 242 in Fig. 9) of retainer 240, and contacts with the first contact side 146a of rotation restriction projection 146.The direction that forms the second contact side 240a is parallel with the direction that forms the first contact side 146a.The direction that forms the second contact side 240a is had and covers hinge joint with cover plate 140 and divide 126 direction to form the relation of predetermined angular, will provide its detailed description after a while.

Hinge member 200 is assemblies of support door 100 rotatably.In order to guarantee stability and the reliability of washing machine, the impact that hinge member 200 should be not easily produce owing to transporting washing machine, because door 100 when using washing machine repeatedly rotate the impact of generation or the power that applies continuously due to the weight of door 100 is out of shape or damages.In addition, the environment that hinge member 200 should easily not installed due to washing machine (that is, the variation of temperature and humidity) and distortion or damage.

Therefore, hinge member 200 need to be formed by the material with predetermined stiffness, and considers that physical characteristic and chemical characteristic and productivity ratio can be by being used injection moulding to be formed by engineering plastics.When using engineering plastics to form hinge member 200, material is light and can meet the required physical characteristic of hinge member 200 and chemical characteristic, and hinge member 200 can be used injection moulding manufacture.Therefore, be conducive to the shape of design of hinges member 200, the color of hinge member 200 can easily regulate and change, and does not need extra post processing cost.

The hinge member 200 that is arranged on the door 100 on washing machine is exposed in moisture always.As mentioned above, when the material of hinge member 200 is engineering plastics, rigidity can decline because of the absorption of moisture.Therefore,, in order to prevent Stiffness, can in engineering plastics, comprise glass fibre (GF).In this case, the content of glass fibre (GF) can be 60% or higher.

Hinge member 200 is according to hinge member 200 can be not out of shape or the mode damaged is formed by the engineering plastic materials that comprises GF because of the operating conditions of washing machine or installation environment.Therefore, prevented the sagging of door 100 or departed from, thereby can improve stability and the reliability of product, and hinge member 200 uses injection mouldings manufactured, thereby cost can reduce and productivity ratio can improve.

Hereinafter, the structure that the impact applying when describing in further detail hinge member 200 not because of door 100 prolonged and repeated ground opening/closing damages.

Fig. 8 is illustrated in door 100 to close the state Xiamen 100 of clothing entrance 16 and the partial sectional view of the marriage relation between hinge member 200, Fig. 9 is the zoomed-in view of the A part in Fig. 8, Figure 10 is illustrated in door 100 to open the state Xiamen 100 of clothing entrance and the partial sectional view of the marriage relation between hinge member 200 completely, and Figure 11 is the zoomed-in view of the B part in Figure 10.

As shown in Fig. 8 and Fig. 9, retainer 240 and the second arm 220 can be arranged on based on the 3rd virtual straight line L3 the both sides of the 3rd virtual straight line L3, at door 100, close under the state of clothing entrance 16, the pivot (seeing the C2 in Fig. 1) of the 3rd virtual straight line L3 and cylinder 12 is parallel and through the pivot C1 of hinge axis 230.Angle [alpha] between the first virtual straight line L1 of the pivot C1 of connecting hinge chain rivet 230 and one end 242 of retainer 240 and the pivot C1 of connecting hinge chain rivet 230 and the second virtual straight line L2 of one end 220b that is connected to the first arm 210 of the second arm 220 can be more than or equal to 90 ° and be less than or equal to 180 °.

As shown in Figures 10 and 11, when door 100 is when wide-angle is opened clothing entrance 16 at a predetermined angle or more, rotation restriction projection 146 and retainer 240 contact with each other, the rotation of limiting door 100 thus.In this case, rotation restriction the first contact side 146a of projection 146 and the second contact side 240a of retainer 240 contact with each other, the direction that the first contact side 146a and the second contact side 240a contact with each other (that is the direction W1 that, is parallel to the first contact side 146a and the second contact side 240a) and cover plate 140 are attached to angle beta between the direction W2 of fixator member 120 can be greater than 0 ° and be less than 90 °.In this case, because the direction W1 that is parallel to the first contact side 146a and the second contact side 240a is vertical with the direction of the power F1 of retainer 240 extruding rotation restriction projections 146, so the angle γ between the direction of the power F1 of retainer 240 extruding rotation restriction projections 146 and direction W2 that cover plate 140 is attached to fixator member 120 can be greater than 0 ° and be less than 90 °.The direction of impact that is applied to cover plate 140 by rotation restriction projection 146 is identical with the direction of the power F1 of retainer 240 extruding rotation restriction projections 146, and the power f of local component that retainer 240 extruding rotations limit in the direction of power F1 of projections 146 is parallel with the direction W2 that cover plate 140 is attached to fixator member 120.Therefore the phenomenon that causes cover plate 140 can be out of shape or depart from from fixator member 120 because of the contact between rotation restriction projection 146 and retainer 240 in the time of, can preventing in advance that limited swivel at door 100 is processed.

According to action and reaction principle, the power F2 of rotation restriction projection 146 extruding retainers 240 produces according to the power F1 of same amount along the direction of the opposite direction of the power F1 with retainer 240 extruding rotation restriction projections 146, and acts on the second arm 220.As mentioned above, therefore because hinge member 200 is formed by the engineering material with enough rigidity and uses injection moulding to form, there is not the phenomenon that hinge member 200 can depart from or damage because of the power F2 of rotation restriction projection 146 extruding retainers 240 and the front side of main body 10.

As mentioned above, according to embodiment, the structure that the impact applying when rotatably the hinge member of support door has hinge member not because of the weight of door and prolonged and repeated ground of door opening/closing damages, thus the durability of product and reliability can improve.

In addition, the manufacturing cost of hinge member reduces, and the productivity ratio of product can be improved.

Although illustrated and described some embodiment, it will be appreciated by those skilled in the art that in the situation that do not depart from principle of the present disclosure and the spirit that is limited its scope by claim and equivalent thereof, can change these embodiments.

Claims

1. a washing machine, comprising:

Main body;

Cylinder, is rotatably installed in main body;

Clothing entrance, is formed on the front side of main body, by clothes entrance, clothing is put into cylinder;

Hinge member, comprises the hinge body of the front side that is attached to main body towards the outside of clothing entrance and at least one hinge arms of extending from hinge body;

Door, is rotatably attached to described at least one hinge arms, and with opening/closing clothing entrance, door comprises the holding portion of at least a portion of holding described at least one hinge arms;

Retainer, outstanding from the outside of described at least one hinge arms, and contact with at least a portion of holding portion when door is opened clothing entrance, with the rotation of limiting door.

2. washing machine according to claim 1, wherein, holding portion comprises from the inner side of holding portion towards the outstanding rotation restriction projection of described at least one hinge arms, rotation restriction projection contacts with retainer and the rotation of limiting door.

3. washing machine according to claim 2, wherein, rotates restriction projection along the direction extruding retainer towards cylinder.

4. washing machine according to claim 1, wherein, door comprises:

Transparent component, user watches the inner side of cylinder by transparent component;

Fixator member, transparent component is attached to fixator member, and fixator member has pockets, and at least a portion of described at least one hinge arms is contained in pockets, and pockets is formed in a side of fixator member;

Cover plate, covers pockets and form housing section together with pockets.

5. washing machine according to claim 4, wherein, described at least one hinge arms comprises the first arm extending from hinge body, the second arm extending obliquely from one end of the first arm and vertically extends and as the hinge axis of the pivot of door from the second arm, and pockets comprises and holds the first pockets of the second arm and intersect with the first pockets and hold the second pockets of hinge axis.

6. washing machine according to claim 5, wherein, retainer is outstanding from the outside of the second arm, and cover plate comprises from the outstanding rotation restriction projection of the interior side direction hinge arms of cover plate, and rotation restriction projection contacts with retainer and the rotation of limiting door.

7. washing machine according to claim 6, wherein, the angle between the first virtual straight line of the pivot of connecting hinge chain rivet and one end of retainer and the pivot of connecting hinge chain rivet and the second virtual straight line of one end that is connected to the first arm of the second arm is more than or equal to 90 ° and be less than or equal to 180 °.

8. washing machine according to claim 6, wherein, the angle between the direction of retainer extruding rotation restriction projection and the direction that cover plate is attached to fixator member is greater than 0 ° and be less than 90 °.

9. washing machine according to claim 6, wherein, retainer and the second arm are arranged on the both sides of the 3rd virtual straight line based on the 3rd virtual straight line, wherein, at door, close under the state of clothing entrance, the 3rd virtual straight line parallel is in the pivot of cylinder and through the pivot of hinge axis.

10. washing machine according to claim 6, wherein, the first contact side is arranged on one end of rotation restriction projection, the second contact side is arranged on one end of retainer, at door, open under the state of clothing entrance, the second contact side contacts the first contact side and pushes the first contact side, is parallel to angle between the direction of the first contact side and the second contact side and direction that cover plate is attached to fixator member and is greater than 0 ° and be less than 90 °.

11. washing machines according to claim 2, wherein, short to the distance of one end of retainer from the pivot of described at least one hinge arms to the distance ratio of one end of rotation restriction projection from the pivot of described at least one hinge arms.

12. washing machines according to claim 1 wherein, are engineering plastics for the material of hinge member.

13. washing machines according to claim 12, wherein, it is 60% or higher glass fibre that hinge member comprises content.