JP2023511833A - washing machine - Google Patents

Abstract

The washing machine includes a housing (1). A holder (4) supported via a damping member (9) is mounted in the housing (1). The holder (4) is connected to the housing (1) via flexible members (6) so as to enclose the receiving space. By connecting the holder (4) to the housing (1) via the flexible member (6), the purpose is to install the accommodation space (2) through which the wash water passes in the housing (1) of the washing machine. Realized. In addition, by directly accumulating and installing the storage space (2) in the housing (1), the width of the storage space (2) is set to be equal to the size of the housing (1) of the washing machine. This maximizes the size of the housing (1) and increases the washing capacity of the washing machine. In addition, by constructing at least part of the housing space (2) with a flexible member (6), the vibration and displacement generated in the holder (4) are filtered by the elasticity of the flexible member (6) itself. . This avoids the problem that the accommodation space (2) accumulated in the housing (1) is partially damaged by the action of the damping member (9). [Selection drawing] Fig. 1

Description

The present invention is in the field of clothes dryers, in particular to washing machines, and more particularly to washing machines in which the drum forms a sealed container during washing.

In the prior art, a drum washing machine generally includes an inner tub and an outer tub that are fitted together. The outer tank is sealed and used to store water. Also, clothes are put into the inner tank, and the inner tank is rotated to hit the clothes to wash them. In addition, the inner tub is provided with dehydration holes, and the water in the outer tub flows into the inner tub through the dehydration holes to soak the clothes in the inner tub. Also, the water in the inner tank flows out to the outer tank through the dewatering holes. In addition, moisture in the clothes in the inner tub is discharged to the outer tub through the dewatering holes when the inner tub rotates at high speed. Thus, the purpose of washing clothes is achieved.

During use of the washing machine, dirt tends to accumulate between the inner and outer tubs. However, since the inner tub and the outer tub are fitted together, the user has no way to clean the outer wall of the inner tub and the inner wall of the outer tub. As a result, bacteria inside the washing machine proliferate, and the washing efficiency of the washing machine and the degree of cleanliness after washing the clothes are lowered.

In addition, in the conventional washing machine described above, an outer tub is provided outside the inner tub, and the inner tub rotates to hit and wash the clothes during the washing process of the washing machine. Therefore, the washing capacity of the washing machine is based on the inner tub. On the other hand, since the inner tub and the outer tub are fitted together, during the operation of the washing machine, there should be no collision between the inner tub and the outer tub or between the outer tub and the housing. When designing , it is necessary to leave a gap between the outer tank and the inner tank, and it is also necessary to leave a design gap between the outer tank and the housing. As a result, the drum size of the washing machine cannot be increased without changing the housing size of the washing machine. In other words, the washing capacity of the washing machine cannot be increased based on the conventional washing machine.

In view of the above, the present invention is proposed.

A technical problem to be solved by the present invention is to provide a washing machine that achieves the purpose of increasing the washing capacity of the washing machine in order to eliminate the defects of the prior art. Another object of the present invention is to provide a washing machine that does not require cleaning between the inner tub and the outer tub and that achieves the purpose of increasing the washing volume.

In order to solve the above technical problems, the basic idea of the technical solution adopted in the present invention is as follows.

A washing machine includes a housing. A holder supported via a damping member is mounted in the housing. The holder is connected to the housing via a flexible member so as to enclose the accommodation space.

Further, the holder includes a first support arm and a second support arm spaced apart one above the other. A flexible member is connected to both left and right sides of the first support arm and the second support arm, and at least the flexible member, the first support arm and the second support arm surround the trough-like structure. A storage space is configured inside the trough-like structure. A storage space is configured inside the trough-like structure.

Further, the left and right sides of the first support arm and the second support arm are connected to the inner wall of the housing through different flexible members, respectively, and the first support arm, the second support arm, the flexible member and the inner wall of the housing are connected to each other. surrounds the trough-like structure. A storage space is configured inside the trough-like structure.

Further, the left sides of the first support arm and the second support arm are connected via the left flexible member, the right sides of the first support arm and the second support arm are connected via the right flexible member, and the first support arm and the second support arm are connected via the right flexible member. The support arm, the second support arm, the left flexible member, and the right flexible member surround the trough-like structure, and the central portions of the left flexible member and the right flexible member respectively contact the inner walls of corresponding sides of the housing. connected to

Further, the holder includes a vertically extending support member. A support member is located at the rear end of the trough-like structure. The outer periphery of the support member is sealingly connected to the inner peripheral wall of the trough-like structure, either directly or via a flexible member, and is used to seal one end of the trough-like structure. The front end portion of the trough-like structure is provided with an annular blocking portion that bends toward the center.

Further, the support member is fixedly connected or integrally mounted to the first support arm and the second support arm, respectively, and the rear side of the flexible member is sealingly connected to the support member.

Further, both ends of the trough-like structure are respectively sealingly connected to the inner walls of the housing, so that the interior of the trough-like structure forms a sealed receiving space.

Furthermore, the damping member includes a damping rod and/or suspension spring connecting the holder and the housing. One end of the damping rod is connected to the support member and/or the second support arm of the holder. Also, the damping rod extends downward until the other end is connected to the bottom and/or side walls of the housing. One end of the hanger spring is connected to the support member and/or the first support arm of the holder. Also, the hanger spring extends upward until the other end is connected to the ceiling wall and/or side wall of the housing.

Furthermore, a rotating tank is provided in the housing space. The rotating tub is attached to the holder so as to be rotatable around the axis. Preferably, the washing machine is provided with a lid which accordingly opens and closes the mouth of the rotating tub, the rotating tub forming a sealed water reservoir when the washing machine executes the washing program.

Furthermore, the rotating tub is provided with openings. The opening communicates the interior of the rotating tub with the housing space. A centrifugal valve is provided at the opening of the rotating tub to open the opening using the centrifugal force during rotation when the rotation speed of the rotating tub reaches a predetermined rotational speed.

Furthermore, the rotating tub and the drive motor are respectively provided on both sides of the support member. Also, the rotating tub is located within the tub-like structure. The motor shaft of the drive motor is inserted through the support member and coaxially connected to the center of the tank bottom of the rotating tank. Preferably, a water sealing structure is provided at the tank bottom of the rotary tank through which the motor shaft is inserted.

By using the above technical solutions, the present invention has the following beneficial effects compared with the prior art.

By connecting the holder to the housing via a flexible member, the purpose of providing a receiving space in the housing of the washing machine through which the wash water passes is achieved. In addition, by directly accumulating and installing the accommodation space in the housing, the width of the accommodation space is set to be equal to the size of the housing of the washing machine. This achieves a significant technological advance in maximizing the size of the housing and increasing the washing capacity of the washing machine. In addition, by constructing at least part of the accommodation space with a flexible member, the vibration and displacement generated in the holder are filtered by the elasticity of the flexible member itself. As a result, it is possible to avoid a situation in which the accommodation space accumulated in the housing is acted upon by the damping member, and the problem of partial damage to the accommodation space is prevented.

In order to achieve the above objects of the invention, the following technical solutions are further provided.

A washing machine includes a housing. A holder supported via a damping member is mounted in the housing. A rotating tub is attached to the holder. Any distance between an arbitrary position of the holder and the left side wall of the housing is equal to or greater than the minimum distance between the rotary tub and the left side wall of the housing. Moreover, the distance between an arbitrary position of the holder and the right side wall of the housing is equal to or greater than the minimum distance between the rotary tub and the right side wall of the housing.

Further, the holder includes a vertically extending support member. The rotating tub is rotatably mounted on the supporting member. The support member is coaxially installed on the rotating tub. The horizontal width of the support member is equal to or less than the diameter of the rotating tank. Preferably, a motor shaft is connected to the tank bottom of the rotating tank. A motor shaft is inserted through the support member. Both ends of the motor shaft are connected to the driving motor and the rotating tub respectively.

Furthermore, a drain port is provided in the tank bottom of the rotating tank. The drain port is installed close to the perimeter of the bottom of the tank. The support member covers at least the rotation path of the drain port during the rotating process of the rotating tub. The drain port is provided with a valve body for opening and closing it. Preferably, the valve body is a centrifugal valve that is automatically opened when the rotational speed of the rotating tub reaches a predetermined value, or an electromagnetically controlled control valve. More preferably, the inner wall of the rotary tub is fitted with a lifting rib having a hollow inside. The lifting rib is provided with a water passage hole that communicates with the internal hollow portion. The drain port is used to communicate with the hollow inside the lifting rib. The valve body installed at the drain port is located in the hollow inside the lifting rib.

Furthermore, the outer periphery of the support member is tapered and folded back in a direction toward the rotary tub. The maximum width of the tapered turn in the radial direction is equal to or less than the diameter of the rotating tank. Preferably, the rotary tank is a tapered tank whose diameter gradually shrinks from the bottom side to the mouth side of the tank. The maximum width of the tapered turn in the radial direction is equal to or less than the maximum tank diameter of the tapered rotary tank. More preferably, the tapered tank wall of the rotary tank is provided with a constricted portion that is close to the bottom of the tank and has a reduced tank diameter. A tapered turn at the outer periphery of the support member covers at least a portion of the constriction.

Further, the holder includes a horizontally extending bottom support member provided below the rotatable tub. The bottom support member is provided with a collection tank, the bottom of the collection tank communicating with the drain pipe of the washing machine. A bottom support member is located between the left and right ends of the tumbling tub. Preferably, the width of the bottom support member is smaller than the tub diameter of the rotating tub. Also, the axis of the bottom support member is positioned in the same vertical plane as the axis of the rotating tub.

Further, a notch is provided in the tapered turn at the outer circumference of the support member. The notch is located at the bottom of the tapered turn and is opened facing the water collection tank. Preferably, the holder is provided with a water guiding structure extending from the notch to the water collecting tank and guiding the water flowing out of the drain port of the rotating tank to the water collecting tank.

Additionally, the bottom support member is connected to the lower portion of the support member. A gap is also provided between the bottom support member and the rotating tub. The other end of the bottom support member extends toward the mouth of the rotating tub. A drain pipe of the washing machine is connected to the lowest position of the collecting tank of the bottom support member.

Furthermore, the tank wall of the rotating tank is provided with a drain port, and the drain port is provided with a control valve. The holder is provided with a positioning device for stopping the rotation of the rotating tub at a fixed position. When the rotatable tub is in a fixed position, the drain port is located at the lowest position and is installed facing the catchment tub provided on the holder.

Further, the rotating tub is provided with an inner tub lid for opening and closing the tub opening so that the rotating tub forms a water storage tank when the washing machine is in the washing state.

Furthermore, the damping member includes a damping rod and/or suspension spring connecting the holder and the housing. One end of the damping rod is connected to the holder. Also, the damping rod extends downward until the other end is connected to the housing. One end of the hanging spring is connected to the holder. Also, the hanger spring extends upward until the other end is connected to the housing.

By using the above technical solutions, the present invention has the following beneficial effects compared with the prior art.

By installing as described above, there is no part of the holder that protrudes horizontally from the rotating tank. Therefore, it is possible to realize smooth operation of the washing machine only by maintaining a gap between the housing and the rotating tub.

By installing all the holders between the leftmost end and the rightmost end of the rotating tank, the holders are installed so as not to exceed the radial size of the rotating tank in the horizontal direction. Compared to a general drum washing machine with an outer tub that requires a certain occupied space, in the embodiment of the present invention, when the housing has the same volume, the occupied space of the holder is reduced by the presence of the outer tub. less space than would otherwise be required. This increases the radial size of the rotating tub and expands the washing capacity of the washing machine.

In addition, the present invention has a simple structure, is highly effective, and is suitable for widespread use.

Specific embodiments of the present invention will be described in more detail below in combination with the drawings.

The drawings are part of the invention and are used for a further understanding of the invention. Also, the schematic embodiments of the invention and their descriptions are used for the interpretation of the invention, but do not unduly limit the invention. It should be understood that the drawings described below are only part of the examples, and those skilled in the art may derive further drawings from these drawings, provided that no creative effort is required. It is possible.

FIG. 1 is a schematic structural diagram of a washing machine according to one embodiment of the present invention. FIG. 2 is a schematic structural diagram of a washing machine according to another embodiment of the present invention. FIG. 3 is a schematic structural diagram of the AA cross section of FIG. 1 in the embodiment of the present invention. FIG. 4 is a schematic structural diagram of the BB section of FIG. 1 in one embodiment of the present invention. FIG. 5 is a schematic structural diagram of the BB section of FIG. 1 in another embodiment of the present invention. FIG. 6 is a schematic structural diagram of a washing machine according to another embodiment of the present invention. FIG. 7 is a schematic structural diagram of the DD section of FIG. 6 in another embodiment of the present invention. FIG. 8 is a schematic structural diagram of the DD section of FIG. 6 in a further embodiment of the present invention.

It should be noted that these drawings and written description are not intended to limit the scope of the inventive concept in any way, but rather to explain the inventive concepts to those skilled in the art with reference to specific embodiments. It is.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments will be described clearly and concisely in combination with the drawings of the embodiments of the present invention. It should be noted that the following examples are for the purpose of explaining the present invention and do not limit the scope of the present invention.

In the description of the present invention, terms such as "top", "bottom", "front", "back", "left", "right", "vertical", "inside", "outside", etc. should be explained. The direction or positional relationship indicated by is the direction or positional relationship based on the illustration, and is only for the convenience and simplification of the description of the present invention, and the target device or member is in a specific direction. It does not express or imply that it has and must be configured and operated in a particular direction. As such, it should not be construed as limiting the invention.

In the description of the present invention, the terms "attached", "connected", and "connected" should be interpreted broadly, unless explicitly defined and limited otherwise. For example, it may be a fixed connection, a removable connection, or an integral connection. Also, the connection may be mechanical or electrical. Furthermore, it may be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can interpret the specific meanings of the above terms in the present invention according to specific situations.

As shown in FIGS. 1 to 5, the embodiment of the present invention describes a washing machine. The washing machine includes a housing 1 . A rotating tub 3 is provided in the housing 1 . The axis of the rotating tub 3 is horizontal or is installed with the tub port side inclined upward. The rotating tub 3 is used by the user to apply a washing load. The rotating tub 3 is connected to a driving motor 7 and rotates around its axis with the driving motor 7 . As a result, the load put into the tank is raised and hit, and the load is washed using the action force at the time of hitting. Washing water is supplied into the rotating tub 3 . The wash water soaks the load and brings additives such as detergents, softeners, and disinfectants contained in the supply water into contact with the load, thereby improving the cleaning effect of the load.

In an embodiment of the present invention, the rotating tub 3 is mounted inside the housing 1 via a holder 4 . Moreover, the holder 4 is supported and mounted in the housing 1 via the damping member 9 . The damping member 9 can be a damping rod 91, a spring 92, or the like. Moreover, the vibration control rod 91 and the spring 92 may be any one of a hydraulic rod, a pneumatic rod, a vibration control spring, a vibration control suspension spring, etc., or a combination of them to provide an axial vibration control support force. can have a structure of Preferably, the top of the holder 4 is connected to the housing 1 via a hanger spring 92 and the bottom of the holder 4 is connected to the housing 1 via a damping rod 91 . More preferably, both left and right sides of the top of the holder 4 are connected to at least one hanger spring 92 respectively, and both left and right sides of the bottom of the holder 4 are connected to at least one damping rod 91 respectively. The suspension spring 92 and the vibration damping rod 91 both extend in the radial direction of the rotating tank or in a direction inclined with respect to the radial direction. As a result, the vibration damping force can be directed from both sides toward the central portion, and furthermore, by combining the left and right vibration damping members, a vertical vibration damping supporting force can be formed.

In an embodiment of the invention the holder 4 is provided in the housing 1 of the washing machine. The holder is also connected to the inner wall of the housing 1 via a flexible member 6 so as to surround the accommodation space 2 . Thus, by providing the rotating tub 3 inside the housing space 2 , the washing water flowing out from the rotating tub 3 flows into the housing space 2 . Since the bottom of the accommodation space 2 communicates with the drain pipe 5 of the washing machine, the washing water discharged from the rotating tub 3 is collected and discharged to the outside.

Further, in order to cooperate with the operation of the washing machine described above, the rotating tub 3 may be installed so as to form a sealed water storage tank during normal washing of the washing machine. As a result, the functions of the outer tank and the inner tank are integrated in the rotating tank 3 at the same time, and the loaded load is washed using the washing water contained therein.

Alternatively, the rotating tub 3 of the washing machine may be a normal inner tub, and a dewatering hole may be provided in the rotating tub 3 to communicate the inside and the outside. In this case, the storage space 2 surrounded by the holder 4, the flexible member 6, and the housing 1 is installed in a sealed manner to store the cleaning water, thereby performing the outer tank function for storing the cleaning water. Constructed directly in the accommodation space 2 .

In the embodiment of the present invention, the flexible member 6 is made of a material having elastic malleability so that the flexible member 6 itself can be partially folded, moved, or the like. For example, the flexible member 6 is made of an elastic rubber material. In addition, the flexible member 6 has a sheet-like structure extending in a wavy shape. As a result, the flexible member 6 is partially deformed using its own corrugated folds, and by filtering the vibration damping displacement generated by the vibration damping member 9, the flexible member 6 is damaged. I assure you not to.

By connecting the holder 4 to the housing 1 via the flexible member 6, the purpose of providing a receiving space 2 in the housing 1 of the washing machine through which the wash water passes is achieved. In addition, by directly accumulating and installing the accommodation space 2 in the housing 1, the width of the accommodation space 2 is set to be equal to the size of the housing 1 of the washing machine. This achieves a significant technological advance in maximizing the size of the housing 1 and increasing the washing capacity of the washing machine. In addition, by constructing at least part of the housing space 2 with the flexible member 6, the vibration and displacement generated in the holder 4 are filtered by the elasticity of the flexible member 6 itself. As a result, the storage space 2 accumulated in the housing 1 is prevented from being acted upon by the damping member 9, and the problem of partial damage to the storage space 2 is prevented.

As shown in FIG. 1, in this embodiment, a washing machine will be described. The washing machine includes a housing 1 . A rotating tub 3 is provided in the housing 1 . The rotating tub 3 is rotatably installed on the holder 4 . A housing space 2 is surrounded by the holder 4 , the flexible member 6 , and the housing 1 , and the rotary tub 3 is installed in the housing space 2 .

In this embodiment, the holder 4 includes a first support arm 41 and a second support arm 42 which are vertically arranged and spaced apart. A flexible member 6 is connected to both the left and right sides of the first support arm 41 and the second support arm 42, and at least the flexible member 6, the first support arm 41 and the second support arm 42 surround the trough-like structure. be.

In this embodiment, the left and right sides of the first support arm 41 and the second support arm 42 are connected to the inner wall of the housing 1 via different flexible members 6, respectively. , the flexible member 6 and the inner wall of the housing 1 surround the trough-like structure. In this embodiment, both left and right sides of the first support arm 41 are connected to the right side of the upper left flexible member 63 and the left side of the upper right flexible member 64 respectively. The left side of the upper left flexible member 63 is connected to the left side wall 11 of the housing 1, and the right side of the upper right flexible member 64 is connected to the right side wall 12 of the housing 1, respectively. The left and right sides of the second support arm 42 are connected to the right side of the lower left flexible member 65 and the left side of the lower right flexible member 66, respectively. The left side of the lower left flexible member 65 is connected to the left side wall 11 of the housing 1 and the right side of the lower right flexible member 66 is connected to the right side wall 12 of the housing 1 . The connection point between the upper left flexible member 63 and the left side wall 11 is located above the connection point between the lower left flexible member 65 and the left side wall 11, and the connection point between the upper right flexible member 64 and the right side wall 12 is located above the connection point between the left lower flexible member 65 and the left side wall 11. The connection point is located above the connection point between the lower right flexible member 66 and the right side wall 12 . As a result, the upper left flexible member 63, the first support arm 41, the upper right flexible member 64, the right wall 12, the lower right flexible member 66, the second support arm 42, the lower left flexible member 65, the left wall 11. The head and tail of the upper left flexible member 63 are sequentially connected to form a trough-like structure, and the accommodation space 2 is formed inside the trough-like structure.

In this embodiment, the connecting points of the flexible member 6 and the side walls of the housing 1 and the supporting arms of the holder 4 are all sealed in order to ensure the tightness of the receiving space 2 . This avoids a situation in which the water that has flowed into the housing space 2 flows out from the connecting portion.

In this embodiment, the axes of the first support arm 41 and the second support arm 42 are located in the same vertical plane in order to improve the overall running stability of the washing machine. Preferably, both the axes of the first support arm 41 and the second support arm 42 are positioned in the same vertical plane as the axis of the rotary tub 3 . As a result, the holder 4 is arranged symmetrically with respect to the axis of the rotating tub 3, thereby reducing vibration during operation of the washing machine.

In this embodiment, in order to further improve the stability during operation of the washing machine, the tub-like structure surrounded by the holder 4, the flexible member 6, and the side wall of the housing is oriented with respect to the axis of the rotating tub 3. arranged symmetrically. As a result, since the center of the tank-like structure is located in the vertical plane in which the axis of the rotating tank 3 exists, it is possible to avoid the situation where the vibration of the tank-like structure becomes excessively large due to the eccentricity.

As shown in FIG. 2, this embodiment differs from the first embodiment in that the housing space 2 in which the rotating tub 3 is arranged is directly surrounded by the holder 4 and the flexible member 6. As shown in FIG.

In this embodiment, the first support arm 41 and the second support arm 42 of the holder 4 have a left flexible member 61 installed on the left side and a right flexible member 62 installed on the right side. The opposite sides of the left flexible member 61 are connected to the left sides of the first support arm 41 and the second support arm 42 respectively, and the opposite sides of the right flexible member 62 are connected to the first support arm 41 respectively. and the right side of the second support arm 42 . As a result, the tank-like structure is surrounded by the first support arm 41, the left flexible member 61, the second support arm 42, and the right flexible member 62, which are successively connected, and the accommodation space 2 is formed in the tank-like structure. .

In this embodiment, the left flexible member 61 is fixedly connected to the left wall 11 of the housing 1 of the washing machine and the right flexible member 61 is fixedly connected to the left wall 11 of the washing machine housing 1 in order to maximize the accommodation space 2 and increase the washing capacity of the washing machine. A flexible member 62 is fixedly connected to the right side wall 12 of the housing 1 of the washing machine. Thereby, the tub-like structure formed by the flexible member 6 is stretched by the action of the connection point, and the washing capacity of the washing machine is maximized and installed.

Preferably, in order to ensure maximum capacity of the washing machine, it is installed as follows. The central portion of the left flexible member 61 and the left side wall 11 of the housing 1 of the washing machine are connected, and the connection point is installed at the same height as the axis of the rotating tub 3 of the washing machine. Also, the central portion of the right flexible member 62 and the right side wall 12 of the housing 1 of the washing machine are connected, and the connection point is installed at the same height as the axis of the rotating tub 3 of the washing machine. By installing as described above, the width of the housing 1 can be fully used to install the accommodation space 2, and the width of the accommodation space 2 is maximized. As a result, it is possible to maximize the size of the rotary tub 3 arranged inside, and thus the effect of increasing the washing capacity of the washing machine is achieved.

As shown in FIGS. 3 and 4, this embodiment is based on the first or second embodiment and has the following technical features. That is, the tank-shaped structure surrounded by at least the flexible member 6, the first support arm 41 and the second support arm 42 has a water stop structure at least on the outer peripheral portions of both ends. As a result, the wash water flowing out of the rotating tub 3 is dammed by the water stop structure and collected in the storage space 2 formed inside the tub-shaped structure, and then the drain pipe of the washing machine communicates with the tub-shaped structure. 5 can be discharged to the outside.

In this embodiment, the holder 4 includes a vertically extending support member 40 . A support member 40 is located at the rear end of the trough-like structure. The outer periphery of the support member 40 is sealingly connected to the inner peripheral wall of the trough-like structure, either directly or via the flexible member 6, and is used to seal one end of the trough-like structure. The rear side of flexible member 6 is sealingly connected to support member 40 . As a result, since the rear end of the tank-like structure is sealed by the action of the support member 40, it is possible to avoid a situation in which washing water flowing out of the rotary tank 3 is discharged from the rear end of the tank-like structure to the outside. Furthermore, the effect of collecting the wash water flowing out from the rotating tub 3 into the accommodation space 2 is achieved.

In this embodiment, the front end portion of the trough-like structure is provided with an annular blocking portion 67 that bends toward the center. Since the outer periphery of the ring-shaped blocking portion 67 is hermetically connected to the front end portion of the tank-like structure, the cleaning water that has flowed into the housing space 2 is prevented from flowing out from the front end portion. Preferably, the inner periphery of the ring-shaped damming portion 67 may be coaxially arranged so as to face the mouth of the rotary tub 3 in order to ensure the stability of the operation of the washing machine.

In this embodiment, the support member 40 of the holder 4 is fixedly connected to the first support arm 41 and the second support arm 42, respectively, or integrally installed, and is made of a metal member having a certain rigidity or a metal member. Consists of a plastic member or the like. Preferably, the second support arm 42 is provided at the lowest position of the trough-like structure. A drain port is installed in the second support arm 42, and the drain port communicates with the drain pipe 5 of the washing machine.

In this embodiment, the rotary tub 3 and the drive motor 7 are provided on both sides of the support member 40, respectively. Also, the rotating tub 3 is positioned within the tub-like structure. A motor shaft 8 of the drive motor 7 is inserted through a support member 40 and coaxially connected to the center of the bottom of the rotating tank 3 . Preferably, a water sealing structure is provided at the bottom of the rotating tub 3 through which the motor shaft 8 is inserted.

As shown in FIG. 5, this embodiment is based on the first or second embodiment and has the following technical features. That is, the trough-like structure surrounded by at least the flexible member 6, the first support arm 41 and the second support arm 42 is hermetically connected to the inner wall of the housing 1 at both ends. Thus, by sealingly connecting the front end and the rear end of the trough-like structure to the inner wall of the housing 1 on the corresponding side respectively, the front end and the rear end of the trough-like structure are appropriately water-stopped and rotated. The wash water flowing out of tank 3 is collected.

In this embodiment, the front end of the tub-like structure is connected to the front wall 13 of the housing 1 of the washing machine and the rear end is connected to the rear wall 14 of the housing 1 of the washing machine.

In this embodiment, in order to ensure that the vibration in the rotating process of the rotary tub 3 is not transmitted to the housing 1 after being transmitted to the tub-like structure, the following installation is required. That is, the holder 4 is not directly connected to the housing 1, but the entire outer periphery of the holder 4 is connected to the housing 1 via the flexible member 6. FIG. As a result, the vibration of the holder 4 is filtered by the flexible member 6 and transmitted to the housing 1, thereby reducing the vibration during the operation of the washing machine.

In this embodiment, flexible members 6 are formed between the front end of the holder 4 and the front wall 13 of the housing 1 and between the rear end of the holder 4 and the rear wall 14 of the housing 1. Therefore, vibrations received by the holder 4 due to the movement of the rotary tub 3 are transmitted to the housing 1 via the flexible member 6 . This avoids a rigid connection between the holder 4 and the housing 1 and prevents vibrations from acting directly on the housing 1 .

As shown in FIGS. 1 to 5, this embodiment is based on the washing machine described in any of the above embodiments 1 to 4, and further includes the following technical features. That is, the holder 4 and the housing 1 are connected via the damping member 9 . The damping member 9 includes a damping rod 91 and/or suspension spring 92 connecting the holder 4 and the housing 1 . One end of the vibration damping rod 91 is connected to the support member 40 and/or the second support arm 42 of the holder 4 . Also, the damping rod 91 extends downward until the other end is connected to the bottom wall and/or side wall of the housing 1 . One end of the suspension spring 92 is connected to the support member 40 and/or the first support arm 41 of the holder 40 . Also, the hanger spring 92 extends upward until the other end is connected to the ceiling wall and/or the side wall of the housing 1 . As a result, the holder 40 is supported by the housing 1 via the vibration damping member 9, and absorbs vibration by utilizing the elastic expansion and contraction of the vibration damping member 9 itself, thereby reducing vibration and impact on the housing 1 of the washing machine. make it possible.

As shown in FIGS. 1 to 5, this embodiment is based on the washing machine described in any of the above embodiments 1 to 5, and further includes the following technical features. That is, a rotating tub 3 is provided in the housing space 2 . The rotary tub 3 is attached to the holder 4 so as to be rotatable about its axis.

In this embodiment, the washing machine is provided with a door 10 for opening and closing the mouth of the rotating tub 3 as appropriate. The rotating tub 3 forms a sealed water reservoir when the washing machine runs a washing program. As a result, the functions of the inner tank and the outer tank are integrated in the rotating tank 3 at the same time.

In this embodiment, the rotary tub 3 is provided with openings. The opening allows the interior of the rotary tub 3 to communicate with the housing space 2 . A centrifugal valve is provided at the opening of the rotating tub 3 to open the opening using the centrifugal force during rotation when the rotation speed of the rotating tub 3 reaches a predetermined rotational speed. As a result, it is possible to control the discharge of the cleaning water contained in the rotating tub 3 to the outside, and the rotating tub 3 is integrated with the functions of the inner tub and the outer tub at the same time.

As shown in FIGS. 6 and 7, in this embodiment, a washing machine will be described. The washing machine includes a housing 1 . A rotating tub 3 is provided in the housing 1 . The axis of the rotating tub 3 is horizontal or is installed with the tub port side inclined upward. The rotating tub 3 is used by the user to apply a washing load. The rotating tub 3 is connected to a driving motor 7 and rotates around its axis with the driving motor 7 . As a result, the load put into the tank is raised and hit, and the load is washed using the action force at the time of hitting. Washing water is supplied into the rotating tub 3 . The wash water soaks the load and brings additives such as detergents, softeners, and disinfectants contained in the supply water into contact with the load, thereby improving the cleaning effect of the load.

In an embodiment of the present invention, the rotating tub 3 is mounted inside the housing 1 via a holder 4 . Moreover, the holder 4 is supported and mounted in the housing 1 via the damping member 9 . The damping member 9 can be a damping rod, a spring, or the like. In addition, the damping rod and spring may be any one of a hydraulic rod, a pneumatic rod, a damping spring, a damping suspension spring, etc., or a conventional structure capable of providing a damping force in the axial direction by combining them. can be Preferably, said damping member 9 can be placed below the holder and connects the holder 4 to the bottom and/or side walls of the housing 1, as shown in FIGS. Also, two sets of damping members 9 arranged symmetrically with respect to the axis of the rotating tub may be installed on both the left and right sides of the holder. Each damping member 93 extends in the radial direction of the rotary tub or in a direction inclined to the radial direction. As a result, the vibration damping force can be directed from both sides toward the central portion, and furthermore, by combining the left and right vibration damping members, a vertical vibration damping supporting force can be formed.

In order to cooperate with the operation of the washing machine, the rotating tub 3 forms a sealed water storage tank by closing a door installed in the rotating tub 3 during normal washing of the washing machine. should be installed as follows. As a result, the functions of the outer tank and the inner tank are integrated in the rotating tank 3 at the same time, and the loaded load is washed using the washing water contained therein.

In the embodiment of the present invention, the rotating tub 3 is attached to the holder 4 . Any distance between an arbitrary position of the holder 4 and the left side wall 11 of the housing 1 is equal to or greater than the minimum distance between the rotary tub 3 and the left side wall 11 of the housing 1 . Moreover, the distance between an arbitrary position of the holder 4 and the right side wall 12 of the housing 1 is equal to or greater than the minimum distance between the rotary tub 3 and the right side wall 12 of the housing 1 .

By installing all the holders between the leftmost end and the rightmost end of the rotating tank, the holders are installed so as not to exceed the radial size of the rotating tank in the horizontal direction. Compared to a general drum washing machine with an outer tub that requires a certain occupied space, in the embodiment of the present invention, when the housing has the same volume, the occupied space of the holder is reduced by the presence of the outer tub. less space than would otherwise be required. This increases the radial size of the rotating tub and expands the washing capacity of the washing machine.

As shown in FIGS. 6 and 7, in this embodiment, a washing machine will be described. The washing machine includes a housing 1 . A rotating tub 3 is provided in the housing 1 . The rotating tub 3 is rotatably installed on the holder 4 . In addition, a gap is provided between the holder 4 and the rotary tub 3 to ensure that interference with the holder 4 does not occur during the rotating process of the rotary tub 3 .

In this embodiment, the holder 4 includes a vertically extending support member 40 . The rotating tub 3 is rotatably mounted on the supporting member 40 . Further, the supporting member 40 is coaxially installed on the rotating tub 3 . The horizontal width of the support member 40 is equal to or less than the diameter of the rotating tub 3 . Preferably, in this embodiment, a motor shaft 8 is connected to the tank bottom of the rotating tank 3 . The motor shaft 8 is inserted through the support member 40 . Both ends of the motor shaft 8 are connected to the drive motor 7 and the rotating tub 3, respectively. As a result, the rotor of the driving motor 7 is directly connected to the rotating tub 3, and the driving motor causes the rotating tub 3 to rotate about its axis.

By installing as described above, there is no part of the holder that protrudes horizontally from the rotating tank. Therefore, the smooth operation of the washing machine can be realized only by maintaining a gap between the housing and the rotating tub.

In this embodiment, a drain port 15 is provided at the bottom of the rotating tub 3 . The drain port 15 is installed close to the periphery of the tank bottom. The support member 40 covers at least the rotation path of the drain port 15 during the rotating process of the rotating tub 3 . As a result, the drainage water flow that has flowed out of the drainage port 15 is guided by the support member 40 and is allowed to flow so as to converge downward. The drain port 15 is provided with a valve body 22 for opening and closing it. In this embodiment, the valve body 22 is a centrifugal valve that is automatically opened when the rotation speed of the rotating tub 3 reaches a predetermined value, or an electromagnetically controlled control valve. In this embodiment, a lifting rib 21 having a hollow interior is attached to the inner wall of the rotary tub 3 . The lifting ribs 21 are provided with water passage holes that communicate with the internal hollow portion. The drain port 15 is used to communicate with the hollow inside the lifting rib 21 . A valve body 22 installed in the drain port 15 is positioned in a hollow portion inside the lifting rib 21 .

In this embodiment, a plurality of drainage ports 15 may be provided on the bottom of the rotating tub 3 in order to improve the smoothness of drainage. Moreover, each drain port 15 is arranged symmetrically with respect to the axis of the rotary tub 3 . As a result, the cleaning water in the rotary tub 3 can be discharged outside from each drain port 15 by the action of centrifugal force, so that the smoothness of draining is improved.

In this embodiment, the outer circumference of the support member 4 is a tapered turn 43 that is inclined in the direction of approaching the rotary tub 3 . The maximum radial width of the tapered turn 43 is equal to or less than the diameter of the rotating tank 3 . As a result, the holder 4 does not have a portion protruding from the rotating tub 3 in the horizontal direction, so that the washing machine can be operated smoothly only by maintaining a gap between the rotating tub 3 and the housing 1. . In addition, by installing a tapered turn 43 inclined toward the bottom of the rotating tub 3 on the outer periphery of the support member 4, the water flow discharged from the drain port 15 is guided by the support member 40 and converges downward. guaranteed to be liquid.

In this embodiment, the rotary tub 3 is a tapered tub whose tub diameter gradually shrinks from the tub bottom side toward the tub mouth side. As a result, when the wash water in the tank is guided to flow along the wall by the action of centrifugal force, the wash water is concentrated toward the bottom of the rotating tank 3 and discharged from the drain port 15 provided at the bottom of the tank. be done. The included angle between the composition line of the tank wall of the rotary tank 3 and the horizontal line is set to a so that the tank wall of the rotary tank becomes a tapered tank whose diameter increases from the mouth side to the bottom side of the tank. In this embodiment, the maximum radial width of the tapered turn 43 is equal to or less than the maximum diameter of the tapered rotary tank 3 . More preferably, the tapered tank wall of the rotary tank 3 is provided with a constricted portion that is close to the bottom of the tank and has a reduced tank diameter. A tapered turn 43 at the outer periphery of support member 40 covers at least a portion of the contraction.

In this embodiment, the holder 4 includes a bottom support member 41 provided below the rotating tub 3 and extending in the horizontal direction. The bottom support member 41 is provided with a water collection tank 42, and the bottom of the water collection tank 42 communicates with the drain pipe 5 of the washing machine. The bottom support member 41 is located between the left and right ends of the rotary tub 3 . Preferably, the width of the bottom support member 41 is smaller than the diameter of the rotary tub 3 . Also, the axis of the bottom support member 41 is positioned in the same vertical plane as the axis of the rotary tub 3 . By installing the bottom holder below the rotating tub, the drain water flow out of the drain port is guided by the support member, converges downward, and flows into the collection tank installed on the bottom support member. As a result, the effect of converging and containing the waste water and discharging it to the outside through the communicating drain pipe is realized.

In this embodiment, the tapered fold 43 on the outer periphery of the support member 40 is provided with a notch. The notch is positioned at the bottom of the tapered turn 43 and opened to face the water collection tank 42 . Preferably, the holder 40 is provided with a structure extending from the notch to the water collecting tank 42, and is provided with a water guiding structure for guiding the water flowing out of the drain port 15 of the rotary tank 3 to flow to the water collecting tank 42. . The water-conducting structure may be a water-conducting tank with a notch communicating with the collecting tank 42, or may be a water-conducting channel formed by two water-conducting ribs arranged at intervals.

In this embodiment, the bottom support member 41 is connected to the bottom of the support member 40 . A gap is provided between the bottom support member 40 and the rotary tub 3 . The other end of the bottom support member 41 extends toward the mouth of the rotary tub 3 . The drain pipe 5 of the washing machine is connected to the lowest position of the water collecting tank 42 of the bottom support member 40 . As a result, the waste water collected in the water collecting tank 42 can be smoothly discharged to the outside through the drain pipe 5 .

As shown in FIG. 8, this embodiment differs from the seventh embodiment in the following points. That is, in this embodiment, there is no included angle between the tank wall of the rotary tank 3 and the horizontal plane. Further, a drain port 15 is provided on the tank wall of the rotating tank 3 . The drain port 15 is provided with a valve body 22 for controlling the opening and closing of the drain port 15 so that the rotating tub 3 forms a sealed water storage tank when the washing machine executes the washing program. The valve body 22 may have any conventional structure such as an electrically controlled valve based on wireless power supply and signal transmission.

In this embodiment, the holder 4 and/or the housing 1 are provided with a positioning device for stopping the rotation of the rotary tub 3 at a fixed position. When the rotating tub 3 is in the fixed position, the tub wall in which the drain port of the rotating tub 3 is installed is horizontal and arranged at the lowest position. Also, the drain port 15 is arranged at the lowest position and is installed facing the collection tank 42 provided in the holder. As a result, the drainage water flow smoothly flows into the collection tank 42 when the drainage port 15 is opened, thereby achieving the effect of smoothly discharging the washing water in the rotary tank 3 to the outside.

Preferably, the tank wall of the rotary tank 3 is installed so that both ends are inclined toward the central part, and the mouth and bottom of the tank are contracted. Also, the central portion forms a corresponding degree of arc toward the outside. As a result, the tank wall forms a projecting shape, and the drain port is installed at the lowest portion of the projecting portion. The water flow flows to the lowest part by the action of gravity, is converged, and smoothly concentrates in the collection tank 42, so that the effect of optimizing the external discharge of the cleaning water in the rotary tank 3 is achieved.

In this embodiment, the positioning device may be any conventional device (not shown) that stops rotation of the rotary tub 3 with respect to a fixed position. For example, it may be a latch that is installed in a holder and that can generate expansion and contraction displacement. A latch is connected to the drive motor. In addition, an insertion opening is installed in the rotating tub and/or the rotor of the motor. The latch extends until it is inserted into the insertion port by the driving action of the motor, and achieves locking and positioning of the rotary tub either directly or via the rotor of the motor that rotates with the rotary tub. As a result, the effect of stopping the rotation of the rotary tub at a fixed position is achieved.

As shown in FIGS. 6 to 8, this embodiment is based on the washing machine described in any of the above embodiments, and further includes the following technical features. That is, the holder 4 and the housing 1 are connected via the damping member 9 . Said damping member 9 can be placed below the holder to connect the holder 4 to the bottom wall and/or side walls of the housing 1 . Alternatively, the damping member 9 may be installed above the holder 4 to connect the holder 4 to the ceiling wall and/or side walls of the housing 1 . As a result, the holder 40 is supported by the housing 1 via the vibration damping member 9, and absorbs vibration by utilizing the elastic expansion and contraction of the vibration damping member 9 itself, thereby reducing vibration and impact on the housing 1 of the washing machine. make it possible.

In this embodiment, a rotating tub 3 is provided within a housing 1 of the washing machine. The rotating tub 3 is attached to the holder 4 so as to be rotatable about its axis.

In this embodiment, the washing machine is provided with a door 10 for opening and closing the mouth of the rotating tub 3 as appropriate. The rotating tub 3 forms a sealed water reservoir when the washing machine runs a washing program. As a result, the functions of the inner tank and the outer tank are integrated in the rotating tank 3 at the same time.

The foregoing are merely preferred embodiments of the invention and are not intended to limit the invention in any form. Although the present invention has been disclosed above through preferred embodiments, it is not intended to limit the present invention. Within the scope of the technical solution of the present invention, slight variations or supplements that can be implemented by those skilled in the art using the technical content presented above are regarded as equally modified equivalent embodiments, and any It does not deviate from the content of the technical plan. In addition, any simple modifications, equivalent variations and supplements added to the above embodiments based on the technical essence of the present invention all belong to the scope of the present invention.

REFERENCE SIGNS LIST 1 housing 2 accommodation space 3 rotary tank 4 holder 5 drain pipe 6 flexible member 7 drive motor 8 motor shaft 9 damping member 10 door 11 left side wall 12 right side wall 13 front side wall 14 rear side wall 15 drain port 21 lifting rib 22 valve BODY 31 MOTOR SHAFT 40 SUPPORT MEMBER 41 FIRST SUPPORT ARM 42 SECOND SUPPORT ARM 43 BOTTOM SUPPORT MEMBER 44 TANK 45 TAPERED BACK 61 LEFT FLEXIBLE 62 RIGHT FLEXIBLE 63 LEFT FLEXIBLE 64 RIGHT OK Flexible member 65 Lower left flexible member 66 Lower right flexible member 67 Damping portion

Claims (20)

A washing machine including a housing, wherein a holder supported via a damping member is mounted in the housing,
The washing machine, wherein the holder is connected to the housing via a flexible member so as to surround the accommodation space. The holder includes a first support arm and a second support arm which are vertically arranged and spaced apart from each other, and flexible members are connected to left and right sides of the first support arm and the second support arm. 2. The tank-like structure is surrounded by at least the flexible member, the first support arm and the second support arm, and a storage space is defined inside the tank-like structure. washing machine. Left and right sides of the first support arm and the second support arm are connected to the inner wall of the housing through different flexible members, respectively, and the first support arm, the second support arm, the flexible member and the 3. The washing machine as claimed in claim 2, wherein the inner wall of the housing surrounds the tub-like structure. The first support arm and the left side of the second support arm are connected via a left flexible member, and the first support arm and the right side of the second support arm are connected via a right flexible member. and a trough-like structure is surrounded by the first support arm, the second support arm, the left flexible member and the right flexible member, and the center of the left flexible member and the right flexible member. 3. The washing machine as claimed in claim 2, wherein each section is connected to the inner wall of the corresponding side of the housing. The holder includes a support member extending vertically, the support member being located at the rear end of the trough-like structure, and the outer periphery of the support member being directly or via a flexible member extending from the trough-like structure. is sealingly connected to the inner peripheral wall of the trough-like structure and is used to seal one end of the trough-like structure,
The washing machine according to any one of claims 2 to 4, wherein the front end of the tub-shaped structure is provided with an annular blocking portion that bends toward the center. The support member is fixedly connected to or integrally mounted with the first support arm and the second support arm, respectively, and the rear side of the flexible member is sealingly attached to the support member. 6. The washing machine according to claim 5, which is connected. Both ends of the trough-like structure are hermetically connected to the inner wall of the housing, and the interior of the trough-like structure forms a hermetically sealed receiving space. washing machine described in . the vibration damping member includes a vibration damping rod and/or suspension spring connecting the holder and the housing;
One end of the vibration damping rod is connected to the support member and/or the second support arm of the holder, and the vibration damping rod extends downward until the other end is connected to the bottom wall and/or side wall of the housing. and
One end of the suspension spring is connected to the support member and/or the first support arm of the holder, and the other end of the suspension spring extends upward until it is connected to the ceiling wall and/or side wall of the housing. The washing machine according to any one of claims 1 to 7, characterized in that: A rotating tub is provided in the housing space, and the rotating tub is attached to the holder so as to be rotatable about an axis,
Preferably, the washing machine is provided with a lid that appropriately opens and closes the mouth of the rotating tub, and the rotating tub forms a sealed water reservoir when the washing machine executes the washing program. The washing machine according to any one of claims 1 to 8, characterized in that: An opening is provided in the rotating tank, and the opening communicates the inside of the rotating tank with the housing space, and the opening of the rotating tank is provided at a position where the rotating tank rotates at a predetermined rotation speed. 10. The washing machine according to claim 9, further comprising a centrifugal valve that opens said openings by utilizing centrifugal force during rotation when speed is reached. A washing machine including a housing, wherein a holder supported via a damping member is mounted in the housing,
A rotating tank is attached to the holder, and a distance between an arbitrary position of the holder and the left side wall of the housing is equal to or greater than the minimum distance between the rotating tank and the left side wall of the housing, and A washing machine, wherein a distance between an arbitrary position of the holder and the right side wall of the housing is equal to or greater than the minimum distance between the rotating tub and the right side wall of the housing. The holder includes a vertically extending support member, the rotating tank is rotatably mounted on the supporting member, the supporting member is coaxially installed on the rotating tank, and the horizontal width of the supporting member is the tank of the rotating tank. is less than or equal to the diameter,
Preferably, a motor shaft is connected to the tank bottom of the rotating tank, the motor shaft is inserted through the support member, and both ends of the motor shaft are connected to the drive motor and the rotating tank, respectively. The washing machine according to claim 11, wherein A drain port is provided in the bottom of the rotating tank, and the drain port is installed close to the outer circumference of the bottom of the tank. a valve that covers at least the path and that opens and closes the drain port,
Preferably, the valve element is a centrifugal valve that is automatically opened when the rotation speed of the rotating tub reaches a predetermined value, or an electromagnetically controlled control valve,
More preferably, the inner wall of the rotating tank is equipped with a lifting rib having a hollow interior, the lifting rib is provided with a water passage hole communicating with the hollow interior, and the drain port is 13. The valve body according to claim 12, wherein the valve body used to communicate with the hollow inside the lifting rib and installed at the drain port is positioned in the hollow inside the lifting rib. washing machine. The outer periphery of the support member is a tapered turn that is inclined in a direction close to the rotating tank, and the maximum width of the tapered turn in the radial direction is equal to or less than the tank diameter of the rotating tank,
Preferably, the rotating tank is a tapered tank in which the tank diameter gradually shrinks from the bottom side to the mouth side of the tank, and the maximum width of the tapered turn in the radial direction is the tapered shape. It is equal to or less than the maximum tank diameter of the rotating tank,
More preferably, the tapered tank wall of the rotating tank is provided with a contraction portion that is close to the tank bottom and has a contracted diameter of the tank, and the tapered fold at the outer periphery of the support member is the contracted part. 14. The washing machine according to claim 13, wherein at least part of the portion is covered. The holder includes a bottom support member provided below the rotating tub and extending in the horizontal direction, the bottom support member is provided with a water collection tank, and the bottom of the water collection tank communicates with the drain pipe of the washing machine. wherein the bottom support member is located between the left and right ends of the rotating tub,
Preferably, the width of the bottom supporting member is smaller than the diameter of the rotating tub, and the axis of the bottom supporting member is located in the same vertical plane as the axis of the rotating tub. 15. The washing machine according to any one of 14. A notch is provided in the tapered turn on the outer periphery of the support member, and the notch is located at the bottom of the tapered turn and is opened facing the water collection tank,
Preferably, the holder has a structure extending from the notch to the water collecting tank, and is provided with a water guiding structure for guiding the water flowing out of the drain port of the rotating tank to flow to the water collecting tank. 16. The washing machine according to claim 15, characterized by: The bottom support member is connected to the lower part of the support member, a gap is provided between the bottom support member and the rotating tub, and the other end of the bottom supporting member extends toward the mouth of the rotating tub. 16. The washing machine according to claim 15, wherein a drain pipe of the washing machine is connected to the lowest position of the water collecting tank of the bottom support member. The tank wall of the rotating tank is provided with a drain port, the drain port is provided with a control valve, and the holder is provided with a positioning device for stopping the rotation of the rotating tank at a fixed position. provided, and when the rotating tank is in a fixed position, the drain port is arranged at the lowest position and is installed facing the collecting tank provided in the holder. 18. The washing machine according to any one of 17. 19. The rotating tub is provided with an inner tub lid for opening and closing a tub port so that the rotating tub forms a water storage tank when the washing machine is in a washing state. 1. The washing machine according to item 1. the vibration damping member includes a vibration damping rod and/or suspension spring connecting the holder and the housing;
One end of the vibration damping rod is connected to the holder, the vibration damping rod extends downward until the other end is connected to the housing, one end of the suspension spring is connected to the holder, and the suspension spring is connected to the holder. A washing machine as claimed in any one of claims 11 to 19, characterized in that the spring extends upward until the other end is connected to the housing.

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