KR100808185B1 - washing machine - Google Patents

Abstract

The present invention relates to a washing machine, and more particularly, to a drum washing machine of a new structure in which foreign matter is not introduced into a tub.

To this end, in the washing machine comprising a drum in which laundry is accommodated through an inlet and a tub installed to surround the drum while having an opening corresponding to the inlet, foreign matter is introduced into the spaced space between the drum and the tub. In order not to provide a washing machine, a gap between the inlet part and the opening part is provided with a foreign material input preventing means interposed therebetween.

Washing machine, drum, tub, foreign object, input, prevention, guide

Description

Washing machine

1 is a side cross-sectional view showing a conventional drum washing machine

FIG. 2 is an enlarged view of part “A” of FIG. 1;

Figure 3 is a side cross-sectional view showing a preferred embodiment of the present invention

4 is a schematic view showing the tub and the guide member

Figure 5 is a perspective view showing a state in which the guide member and the gap preventing member is coupled

6a and 6b are views showing the opening of the tub from the front, front view showing before and after the laundry is put

FIG. 7A is a cross-sectional view taken along the line I-I of FIG. 6A

FIG. 7B is a cross-sectional view taken along the line II-II of FIG. 6B

Figure 8 is a side cross-sectional view showing a state where the gap preventing member is spaced from the guide member when the drum is rotated at high speed.

Description of the main symbols in the drawings

100: main body case 110: tub

113: opening 115: bracket

116: gasket 117: first bearing housing

118: second bearing housing 120: drive part

121: motor 122: drive shaft

123: bearing 124: suspension spring

125: bending piece 126: damper

130: drum 131: inlet

132: balancer 133: backspider

140: foreign matter input prevention means 141: guide member

142: gap preventing member 143: closure

144: fixed part

The present invention relates to a washing machine to prevent the introduction of foreign matter through the gap formed between the opening of the tub and the inlet of the drum.

In general, a washing machine is a device that removes dirt or dirty substances from laundry by chemical decomposition and mechanical physics. It is a pulsator type that is washed by water flow generated by rotating a plate-type pulsator. As the washing machine and the lying drum are rotated, the washing machine is divided into a washing machine supplied to the drum and a washing machine using a drop of friction and a friction force.

Among them, the drum washing machine is not only able to reduce the overall height but also increase the washing capacity and rarely cause problems such as kinking, compared to the pulsator washing machine that rotates with the washing tank inner tank standing up. There is a growing trend.

Hereinafter, a configuration of a general drum washing machine will be described with reference to the accompanying drawings.

1 is a cross-sectional view showing a configuration of a general drum washing machine, a drum washing machine installed in the main body 1 by a damper 7 and a spring 6 and rotatably installed in the tub 2. It is largely divided into a cylindrical drum 3 and a driving part 5 axially connected to the drum 3.

At this time, the front surface of the main body 1 is provided with a door 8 at a predetermined position so as to correspond to the opening of the drum 3, and is interposed between the door 8 and the tub (2) from the tub (2) A gasket 9 for sealing to prevent leakage to the 8 is provided, and an upper part of the door 8 is provided with a controller 10 for receiving a user's operation command and controlling the operation of the entire washing machine.

In addition, a drainage motor 10 is installed at the lower side of the main body 1, and a drainage pipe 6 is connected between the drainage motor 10 and the tub 2.

The drum washing machine configured as described above transmits the rotational force of the driving unit 5 to the drum 3 through the washing shaft 4, and the laundry is lifted by the baffle 3a while the drum 3 rotates, and then gravity It will fall down by the washing process.

However, the conventional drum washing machine configured as described above has the following problems.

FIG. 2 is an enlarged view of part “A” of FIG. 1 and illustrates a gap formed between the tub of the drum washing machine and the drum. The problem will be described with reference to FIG. 1.

In general, users put laundry into the drum 3 to perform washing using a drum washing machine and then apply power to the drum washing machine to perform washing.

In this process, a user frequently performs washing without inadvertently removing foreign matters contained in a laundry bag, and the following problems are generated.

First, in the case of washing the laundry without removing the foreign matters from the laundry, the foreign matter is drawn out from the laundry and falls into the drum 3 in the process of the laundry being put into the drum or the drum is rotated.

Subsequently, when the drum 3 is rotated at a low speed in the course of the washing process or the drum 3 is stopped at a high speed in the process of the dehydration process, the foreign matter remaining in the drum 3 is stopped. Was thrown out of the drum (3) and hit back and forth, and was caught in the gap (T) formed between the drum (3) and the tub (2) or introduced into the gap to fall on the bottom surface of the tub (2) .

At this time, when foreign matters such as coins are caught in the gap formed between the drum 3 and the tub 2, the drum 3 and the tub 2 are damaged while the drum 3 rotates at high speed. There was a problem.

In addition, when foreign matters fall on the bottom surface of the tub 2, a problem occurs that noise due to the contact between the foreign matter and the tub 2 during the washing or dehydration stroke.

Second, foreign matters falling on the bottom surface of the tub 2 is moved along the drain pipe 6 connected to the tub 2 from the bottom surface due to the vibration of the tub 2 is in contact with the drain motor 10 occurs It became.

For this reason, the drainage motor 10 is damaged by foreign matters, or the foreign matter is caught in the drain hole (not shown) to smooth the drainage, there is a problem that the washing administration is stopped.

The present invention has been made in order to solve the above problems, the object of the present invention, to prevent the foreign material is introduced into the tub to prevent damage to the washing machine by the foreign matter and washing administration smoothly It was intended to make progress.

In order to achieve the above object, the present invention, in the washing machine comprising a drum provided with a laundry to accommodate the laundry through the inlet, and a tub installed to surround the drum while having an opening corresponding to the inlet, the drum and the tub It provides a washing machine, characterized in that the foreign matter input preventing means is interposed in the interval between the inlet and the opening so that the foreign matter is not introduced into the space between them.

At this time, the foreign material input preventing means is a ring-shaped guide member provided in the opening of the tub; It is preferably composed of a gap preventing member for closing the gap generated between the tub and the drum while being interposed between the outer peripheral surface of the guide member and the inlet of the drum.

In addition, the guide member is preferably in communication with the opening of the tub extends toward the inlet of the drum.

In addition, the shape of the guide member is preferably an oval formed when the left and right widths are longer than the upper and lower widths when the inlet of the tub is viewed from the front.

In addition, the guide member is preferably installed eccentrically to the lower side around the center of the tub.

In addition, the drum is preferably installed to be inclined upwardly in the tub around the rear end of the drum in consideration of the load of the laundry accommodated therein.

In addition, the end facing the drum of the guide member is preferably formed to be bent into the guide member.

In addition, the material of the guide member is preferably hard.

In addition, the gap preventing member is in contact with the outer peripheral surface of the guide member for closing the gap between the tub and the drum, and formed integrally with the closure portion for fixing the closure to the inlet of the drum It is preferably made of a fixed part.

At this time, the gap preventing member is preferably installed to extend toward the guide member from the inlet of the drum.

In addition, the closure portion is preferably divided into a plurality so that it can be easily separated from the outer peripheral surface of the guide member by the centrifugal force due to the rotation of the drum.

In addition, the closure is preferably formed to be inclined toward the inside of the drum around the fixing portion.

In addition, the material of the gap preventing member is preferably an elastic material.

According to another aspect of the present invention for achieving the above object, a tub; A drum rotatably installed in the tub; And it extends toward the opening of the tub from the inlet of the drum provides a washing machine comprising an elastic member of a flexible material to prevent the foreign matter is introduced into the gap formed between the inlet and the opening.

At this time, the elastic member is fixed to the inlet portion of the drum, and the drum is closed at the low speed rotation of the drum, and at high speed rotation of the drum to open the gap by the centrifugal force of the drum and the tub It is preferable that the closing part is formed to be inclined from the fixing part toward the inlet part of the drum so that interference does not occur.

In this case, the closure is preferably divided into a plurality.

Hereinafter, a drum washing machine according to a preferred embodiment of the present invention will be described with reference to FIGS. 3 and 8.

As shown in FIG. 3, the drum washing machine according to the preferred embodiment of the present invention includes a main body case 100, a tub 110, a drum 130, and a foreign material injection preventing unit 140. .

Body case 100 forms the appearance of the drum washing machine, and protects various parts.

The main body case 100 includes a top plate 101 constituting an upper portion of the main body, a front frame 102 constituting a front surface of the main body, side cabinets 103 constituting both sides of the main body, and a rear surface of the main body. It consists of a back cover 104 constituting.

At this time, the front frame 102 is formed with an inlet (102a) for injecting laundry into the drum (130).

In addition, a door (D) for opening and closing the inlet (102a) is provided on one side of the front frame 102 to form the inlet (102a).

In addition, a controller 105 for controlling the drum washing machine is provided above the front frame 102.

At this time, the controller 105 is not necessarily installed on the front frame 102, it is preferable that the user is installed in a convenient location to control the drum washing machine.

In addition, the tub 110 is configured to be drained with washing water and is installed inside the body case 100.

In this case, a plurality of bosses 111 are formed at the front end of the tub 110, and the front end of the tub 110 is fastened by bolts 112 inserted into the boss 111 from the outside of the front frame 102. It is fixed to the front frame 102.

In addition, the tub 110 is configured in a cylindrical shape to surround the outside of the drum 130.

At this time, the central portion of the front end portion of the tub 110 is formed of an opening 113 to be in communication with the inlet (102a) formed in the front frame (102).

At this time, it is preferable that the gasket 114 is installed in the gap formed between the opening 113 and the inlet 102a of the front frame 102 so that no foreign matter is introduced.

In addition, a bracket 115 is installed at the central portion of the rear end of the tub 110, and the wash water accommodated in the tub 110 is disposed at the upper and lower portions of the rear end of the tub 110 about the bracket 115. The gasket 116 is installed to prevent leakage.

In addition, the first bearing housing 117 and the second bearing housing 118, which are manufactured separately, are installed at the rear of the bracket 115.

At this time, the first bearing housing 117 and the second bearing housing 118 is provided with a drive unit 120 for rotating the drum 130.

The driving unit 120 passes through a center of the first bearing housing 117 and the second bearing housing 118 from the motor 121 and the motor 121 installed at the rear end of the second bearing housing 118. The drive shaft 122 is configured to be axially coupled to the 130.

At this time, the motor 121 is composed of a rotor frame (121a) and the stator (121b), a brushless DC motor (BLDC) that directly transfers the driving force of the rotor frame (121a) to the drum 130 without a pulley or belt motor).

In addition, bearings 123 rotatably supporting the drive shaft 122 are respectively installed in the first bearing housing 117 and the second bearing housing 118.

In addition, suspension springs 124 for absorbing vibration of the drum 130 coupled to the drive shaft 122 are installed at both sides of the lower end of the first bearing housing 117.

In addition, an 'L' shaped bending piece 125 bent toward the drum 130 side is formed at the center of the lower end of the first bearing housing 117, and a damper 126 is formed at the end of the bending piece 125. ) Is installed to absorb vibrations of the drum 130 together with the suspension spring 124.

That is, the first bearing housing 117 is transmitted through the drive shaft 122 coupled to the drum 130, the vibration of the drum 130 is transmitted, the vibration in the up and down direction of the drum 130 The suspension spring 124 is absorbed and the vibration along the front and rear directions of the drum 130 is to be absorbed by the damper 126.

The drum 130 accommodates laundry and is installed inside the tub 110.

In this case, when the laundry is accommodated therein, the front end of the drum 130 may be rearward of the drum 130 in consideration of the front end of the drum 130 being biased downward due to the load of the laundry. It is preferable to be inclined upward toward the center.

In addition, the central portion of the front end portion of the drum 130 is formed with an inlet portion 131 opened so that laundry can be accommodated therein.

At this time, around the inlet 131 to prevent the vibration of the drive unit 120 caused by the imbalance of the laundry accommodated in the drum 130, the balancer (130) so that the rotation of the drum 130 can be made constant ( 132 is preferably installed.

In addition, a back spider 133 is installed at the rear end of the drum 130 to receive the rotational force from the driving unit 120.

At this time, the back spider 133 is configured to be axially coupled to the drive shaft 122.

In addition, it is preferable that a plurality of lifters 130a are installed on the inner circumferential surface of the drum 130 to lift and drop the laundry during the rotation of the drum 130.

In addition, the foreign matter input preventing means 140 is the drum 130 so as to prevent the foreign matter is introduced into the gap formed between the inlet 131 of the drum 130 and the opening 113 of the tub 110. Is interposed between the inlet 131 and the opening 113 of the tub 110.

The foreign material input preventing means 140 is provided between the ring-shaped guide member 141 installed in the opening 113 of the tub 110 and the outer peripheral surface of the guide member 141 and the inlet 131 of the drum 130. It is made of a gap preventing member 142 is interposed.

At this time, the guide member 141 is preferably installed to extend toward the inlet 131 of the drum 130 while communicating with the opening 113 of the tub 110.

In addition, as illustrated in FIG. 4, the guide member 141 has a length W of left and right widths in comparison to the length L of upper and lower widths when the opening 113 of the tub 110 is viewed from the front. It is preferable that the longer formed elliptical, it is more preferable to be installed eccentrically downward from the center (C) of the opening 113 of the tub (110).

This is to maintain the contact between the gap preventing member 142 and the guide member 141 even if the deflection of the drum 130 changes according to the load of the drum 130.

In addition, the material of the guide member 141 is preferably hard, more preferably a material of steel.

In addition, as shown in FIG. 5, the end 141a of the guide member 141 facing the drum 130 may be damaged by the continuous contact with the gap generating member 142. It is preferably formed to be bent into the guide member 141.

In addition, the gap preventing member 142 is preferably configured to be installed on the balancer 132 installed around the inlet 131 of the drum 130.

In this case, the gap preventing member 142 is contacted along the outer circumferential surface of the guide member 141 to form a gap T formed between the opening 113 of the tub 110 and the inlet 131 of the drum 130. It is preferably made of a closing portion 143 to be closed, and a fixing portion 144 for fixing the closing portion 143 to the balancer 132 while being integrally formed with the closing portion 143.

In this case, the closing part 143 is preferably divided into a plurality of parts so that the closing part 143 which is in contact with the outer circumferential surface of the guide member 141 can be easily dropped when the drum 130 is rotated at a high speed. It is preferable to be inclined toward the inside of the drum 130 around the fixing portion 144.

This is to prevent the friction force between the gap preventing member 142 and the guide member 141 during the high speed rotation of the drum 130 so that the drum 130 can smoothly rotate at a high speed.

Thus, when the drum 130 is rotated at a high speed, the closing part 143 is spaced apart from the outer circumferential surface of the guide member 141 toward the inside of the drum 130 by the centrifugal force of the drum 130.

At this time, the material of the gap preventing member 142 is preferably made of an elastic material so that it can be easily flow by the centrifugal force of the drum (130).

Hereinafter, with reference to the accompanying Figures 6a to 7b to describe the operation of the preferred embodiment of the present invention according to the above configuration.

At this time, as shown in Figures 6a and 7a, the position of the drum before the laundry is introduced into the drum is a state in which the front end of the drum is lifted upward with respect to the rear end of the drum as described above.

Thus, the closing portion 143 of the gap preventing member 142 disposed above the drum 130 in the drawing is spaced apart from the upper outer circumferential surface of the guide member 141, so that the drum 130 The closing part 143 of the gap preventing member 142 that is disposed on the lower side is in a state of being pressed against the lower outer peripheral surface of the guide member 141.

This is because the guide member 141 is eccentrically installed downward with respect to the opening 113 of the tub 110 and the drum 130 is inclined upwardly with respect to the rear end.

Thereafter, while the laundry is introduced into the drum 130, the front end of the drum 130 is lowered by the load of the laundry, and in this state, the position of the drum 130 is substantially horizontal in the tub 110. Becomes

Thus, as shown in FIGS. 6B and 7B, the closing part 143 of the gap preventing member 142 disposed above the drum 130 in the drawing is pressed on the upper outer peripheral surface of the guide member 141. It comes in contact with the state, and the closing part 143 of the space | interval prevention member 142 arrange | positioned under the drum 130 becomes a state unfolded from the lower outer peripheral surface of the guide member 141. As shown in FIG.

Of course, even in this case, no gap is generated between the lower outer peripheral surface of the guide member 141 and the closing part 143.

Thereafter, the washing operation proceeds while the drum 130 rotates at a low speed.

At this time, while the drum 130 is rotated, the friction preventing force is generated while the gap preventing member 142 installed on the drum 130 and the guide member 141 installed on the tub 110 come into contact with each other, but the drum 130 Since the rotational speed is low, the rotational speed of the drum 130 is not reduced or the guide member 141 or the gap preventing member 142 is damaged due to the frictional force.

In addition, even when foreign matter in the drum 130 drawn out from the laundry is bounced through the inlet 131 of the drum 130 in the process of washing, the foreign matter is removed from the tub 110 by the gap preventing member 142. Nothing is going to happen inside

Then, when the washing stroke is finished and the drum 130 is rotated at high speed for the dehydration stroke, as shown in Figure 8, the closing portion 143 of the gap preventing member 142 is the centrifugal force of the drum 130 Spaced apart from the guide member 141.

As a result, the drum 130 may be smoothly rotated at high speed without friction with the guide member 141.

Of course, while the gap preventing member 142 is spaced apart from the guide member 141 in this process, a gap is generated between the inlet 131 of the drum 130 and the guide member 141 of the tub 110. .

However, since the rotation of the drum 130 proceeds at a high speed, foreign matter in the drum 130 is also rotated in the same manner as the drum 130 while being in close contact with the inner surface of the drum 130 by centrifugal force. It does not bounce out of

That is, when the drum 130 rotates at a high speed, a gap may be generated between the inlet portion 131 of the drum 130 and the guide member 141 of the tub 110.

Thus, even if a drum washing machine according to a preferred embodiment of the present invention is accommodated in the drum 130 due to carelessness of the user, damage to the drum washing machine due to the foreign matter in the washing administration or washing administration does not occur. .

According to a drum washing machine according to a preferred embodiment of the present invention, since foreign matters are prevented from being introduced into the tub by interposing a foreign material injection preventing means between the inlet of the drum and the opening of the tub, Noise generated by contact and damage to the tub are prevented.

In addition, by making the guide member constituting the foreign matter input prevention means into an oval shape and installing the guide member eccentrically in the opening of the tub from the center to the lower side of the drum, the gap is generated during the low speed rotation of the drum containing the laundry. The guard member can be in constant contact with the guide member.

In addition, the closure portion of the gap preventing member is configured to be divided into a plurality formed to be inclined toward the inside of the drum, the closure portion can be easily separated from the guide member by the centrifugal force of the drum.

As a result, the gap preventing member and the guide member do not interfere with each other, so that the high speed rotation of the drum can be performed smoothly.

Claims (16)

In the washing machine comprising a drum for receiving laundry through the inlet and a tub installed to surround the drum while having an opening corresponding to the inlet, In order to prevent foreign substances from being introduced into the spaced space between the drum and the tub, a foreign material input preventing means is interposed between the inlet and the opening. The foreign material input preventing means, A ring-shaped guide member provided in the opening of the tub; And And a gap preventing member interposed between the outer circumferential surface of the guide member and the inlet of the drum to close the gap generated between the tub and the drum. delete The method of claim 1, The guide member is in communication with the opening of the tub, characterized in that extending toward the inlet of the drum. The method according to claim 1 or 3, The shape of the guide member is a washing machine, characterized in that the left and right width is formed longer than the upper, lower width when the opening of the tub in front view. The method according to claim 1 or 3, The guide member is a washing machine, characterized in that it is installed eccentrically to the lower side around the inlet of the drum. The method of claim 1, The drum is a washing machine, characterized in that installed inclined upward in the tub with respect to the rear end of the drum in consideration of the load of the laundry accommodated therein. The method according to claim 1 or 3, The end facing the drum of the guide member is bent inwardly of the guide member. The method according to claim 1 or 3, Washing machine, characterized in that the material of the guide member is hard. The method of claim 1, The gap preventing member is A closing part for closing the gap formed between the opening of the tub and the inlet of the drum while contacting along the outer circumferential surface of the guide member; Washing machine, characterized in that formed integrally with the closure portion made of a fixing portion for fixing the closure to the inlet of the drum. The method according to claim 1 or 9, The gap preventing member is installed to extend toward the guide member from the inlet of the drum. The method of claim 9, The closing unit is divided into a plurality of washing machines characterized in that it is easily separated from the outer peripheral surface of the guide member by the centrifugal force due to the rotation of the drum. The method according to claim 9 or 11, The closed part is a washing machine, characterized in that formed inclined toward the inside of the drum around the fixed portion The method according to claim 1 or 9, The material of the gap preventing member is an elastic material. Tub; A drum rotatably installed in the tub; And Washing machine comprising a flexible member of the flexible material extending from the inlet of the drum toward the opening of the tub to prevent the foreign material is introduced into the gap formed between the inlet and the opening. The method of claim 14, The elastic member is A fixed part fixed to the inlet of the drum, When the drum is rotated at a low speed, the gap is closed, and when the drum is rotated at a high speed, the gap is opened by the centrifugal force of the drum, so that the interference with the tub does not occur. Washing machine, characterized in that made. The method of claim 15, Washing machine, characterized in that the closure is divided into a plurality.

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