SA04250064B1 - Pulsator of washing machine - Google Patents

Abstract

Abstract: The invention relates to a pulsator for a washing machine. A pulsating pump provided for a washing machine can enhance cleaning efficiency by generating a complicated water stream. The pulsating pump contains (1) an outer pulsating member (2) with an outer set of large-sized blades (22) and a central pulsating member (4) with a central set of blades (24) formed on a hemispheric surface positioned on an axis rotational axis, and an intermediate pulsating member (3) to be inserted in a rotatable manner on the recess portion between the central pulsating member (4) and the outer spring member (2) and on it a set of intermediate blades (23), provided that Molding of the outer pulsating member and central pulsating member as a single body. If the outer pulsating member 2 and central pulsating member 4 are rotated by the axis of rotation, the intermediate pulsating member is thus rotated 3) member) so that the complicated water stream is generated.

Description

Pulsator of Washing Machine Full Description

Background The invention relates to a pulsator for a washing machine; It is installed on the inner bottom of the washer drum and moves the clothes and wash water by its rotation. It is for a whirlpool-type washing machine; dual acid washing machine; that includes a basin

0 washing machine and dewatering tub separately; And a fully automatic washing machine, in which the wash basin works as a laf water removal basin, a pulsating pump placed on the inner bottom part of the washing basin. generates the pulsating pump; Which is rotated with the intention of being operated by a motor; A moving water stream of vortex type by its rotation so that the water and laundry are moved to carry out a washing and rinsing process.

,0 The pulsating pump is required to have high cleaning efficiency; At the same time; No kinks or damage to the laundry. Therefore; The research activities are focused on disc-shaped base shapes of the pulsating pump with diagonal ribs formed on them. For example; washing machine pulsator pump detected; Prevents clothes from getting caught in the damaged edge parts of the ribs and also enhances cleaning efficiency by preventing unacceptable brushing, warping, entanglement and the like

vo that in laundry clothes (see, for example, Examined Japanese Patent Publication No. 1990-0411 pp. F-Y fig. ). The pulsating pump is exemplified by marking the heights and widths of the pedestal rib assembly; This is along diagonal directions. is formed

sac all has a curved surface sloping downwards from a hemispherical portion at its center and sloping upwards towards its outer circumference. The clothes are washed by the cooperation effect of the moving ribs of the laundry directly and the water stream generated by the rotation of the pulsating pump. With the rotation of the pulsating pump of traditional structure; e The inlet water flows from the hemisphere at its center along the curved surface

It then flows up along the side wall of the washer tub; And it causes streams of water with a large circular arc. In any case; Once the base and rib shapes are detailed; The stream of water generated in the washer basin is followed along a simplified model; Causing a deficiency in cleaning efficiency. General description of the invention

Goa The present invention is to provide a pulsating pump for a washing machine that is able to generate a complex pattern of a water stream to enhance the possibility of agitation with this » where the pulsating pump contains a group of pulsating members assembled in a body. According to the present invention; A pulsating pump is provided for a washing machine; It is permanently operated by means of a rotating mechanism and installed on an inner bottom part of a basin

01 washing machine to condition laundry and water in it 4 and the washing machine basin has an open top; It contains a central pulsating member that is set within a first radial distance from the axis of rotation of the pulsating pump and has a set of central blades popping up » and an outer pulsating member that is set within a second radial distance inward from the circumference of the external pulsating pump and has a number of outer blades popping up; And a middle spring member that is inserted in a removable form

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To rotate in a separator between the central spring member and the external spring member, and it has a set of

Center blades pop up.

Where the middle spring member is inserted between the central spring member and the spring member

outer; If the central spring and the outer spring are intended to be rotated; In the middle spring member, a rotation lags behind the rotation of the spring member

Central and rotation of the external spring. so; The middle pulsator creates a current of water

Adding it to the other water streams generated by the external pulsating member and the pulsating member

central to form a complex sla stream. So; Frictional motions between laundry causes increased friction

In high cleaning efficiency.

1 according to the present invention; The diagonal width of the middle spring member is approximately 1/? the diagonal width of the outer spring member, and the diagonal width of the center spring member is approximately YN the diagonal width of the middle spring member. so; A water stream of large volume in a rotational direction is generated by the outer spring, which occupies a larger area; While the water current of small size generated by the central pulsating member affects the water current generated by the pulsating member

middle vo_to create a complex current with that. so; The laundry can be moved in the washing machine tub effectively.

According to the present invention; The central spring member and the outer spring member are molded as a body

Single. so; Great stress can be achieved for the structure containing the central spring and member

The outer spring by the structure of a single body; The pulsator can be easily inserted

© _ medial in the interval between the central spring member and the outer spring member.

‎YYEA

According to the present invention, the central spring member has a hemispherical shape, the apex of which is set on the axis of rotation. so; The water stream generated by the central pulsator flows diagonally outwards so that it affects the water stream generated by the central pulsator to form a complex water stream; resulting in highly efficient motion.

e according to the present invention; The middle spring member has a curved surface that slopes upwards diagonally outward. Thus, a water current is generated in a vertical direction by the middle spring member, and it is affected by a water current moving in an oblique direction. So; The impact is carried out with a complex movement on the laundry clothes, so that a friction force and force in the direction of bending can be applied to the laundry clothes; It results in good cleaning efficiency.

0 according to the present invention; The outer spring member has a curved surface that slopes downward from its inner circumference to its central region in a roughly diagonal direction and upwards towards its outer circumference; The inner circumference is the top of the outer spring member. so; Laundry can easily be loaded onto the outer spring; so that the washing clothes are moved effectively; At the same oC, a water current is generated in the direction of rotation by the external spring.

According to the present invention; The tops of the middle blades are set lower than those of the central blades and outer blades. so; The middle spring member is prevented from rotating with the outer spring member and the central spring member due to the resistance exerted by the wash cloth between the outer spring member and the central spring member. So; It is not possible to exert a strong stress on the middle spring member.

+ - according to the present invention; And in Allah, the formation of the central spring member and the external spring member in one body; A cavity for holding the middle spring is formed at the same time and a sliding movement support bracket is then installed to support the rotation of the middle spring in it. after that; The intermediate spring member is combined with the sliding movement support bracket which is installed in the mounting cavity of the intermediate spring member; And the cavity for fixing the middle spring member is set between the central spring member and the outer spring member, and in a rotatable way, the middle spring member is carried on the part of the bearing ring formed on the sliding movement support bracket. According to the present invention, the intermediate spring member comprises: a pair of concentric rings facing the side walls of the bearing ring section with spacers between them; And sliding movement projections with 0 sliding contact with the surface of the bearing ring part. so; An air trap is created on top of the upper deck: for the carrying section. So; Coarse sand, water and the like cannot enter the upper surface of the bearing ring section; So that the rotation of the middle spring member cannot be disturbed by this. According to the present invention; The bottom surface of the middle spring mounting hole is provided with holes. so; Foreign materials such as coarse grains of sand and the like are discharged; inserted into the vo cavity by fixing the middle spring member through the holes. So; The rotation of the middle spring is not disturbed by foreign matter. z according to the present invention; A notch is formed on each lateral circumferential surface for the center spring mounting hole. so; Foreign materials such as coins and the like can be prevented from entering the middle spring mounting cavity through the joints between the middle spring member and the outer paddy member and between the middle spring member and the center spring member.

Vv — _ brief_explanation of the drawings The foregoing and other aims and advantages of the present invention will become evident from the following description of a given preferred embodiment in relation to the accompanying drawings; in which: Fig. 1) shows the structure of a washing machine using a pulsating pump according to the preferred embodiment of the present invention; f 0 Fig. 0: Y depicts the structure of the pulsating pump and © JSS: Provides a cross-sectional view of the pulsating pump along a line AA Fig. ; And Fig. A: represents a horizontal projection showing the structure of the operating body of the pulsating pump; and Fig. b: explains a sectional view of an operating body along line 3-3 in sdf Fig. #a: shows a horizontal projection showing the structure of a slide supporting the sliding movement of the pulsating pump; And

0 Fig. 100 showing a sectional view of the sliding motion support strip along the C-C line in Fig. Jo and Fig. 1a: a horizontal projection provides the structure of the middle spring member of the spring pump; And Figure 1B: shows a sectional view of the middle spring member along the 0-0 line in Figure 1A. Detailed description:

1 Figure 1 shows the structure of a washing machine having a pulsating pump (1) according to a preferred embodiment of the present invention. An ideal washing machine would be an ALIS automatic washing machine that automatically performs a series of operations, ie. from one wash to Dewatering process An external basin is flexibly carried

Blood - (VY) mounted in a housing (01) by means of a set of suspensions (11) so that the vibrations generated at the time of the dewatering process can be absorbed by the means of suspension (VY) an inner basin is installed (VY) (washer tub); contains a pulsating pump (1) placed on a part: bottom blood; in the outer tub (VY) the pulsating pump (0) (1) and the inner tub (0) are rotated VF) by means of a motor (VE) mounted in the lower portion of the outer sump (VY) the driving force Ji of the motor (?1) is selectively applied to the impulse pump (1) and/or the inner sump ( VF) by means of a clutch (15). In this specification, the water feeding and draining structure is omitted in the drawing. In the case of operating the washing machine after filling laundry and detergent into the inner tub 0 (©1) with the cover ( ) 17) installed on the upper section of the housing (01) is open; the water is fed into the inner basin (VF) and then the pulsating pump (1) is turned on intentionally by means of a motor (41); so that the process of Washing by moving the laundry and the water stream generated by the rotation of the pulsating pump (1). After carrying out the washing process for a specified period of time; Tas performs a rinse operation; any; Draining the muddy water during the washing process and then agitating the laundry 1 and freshly nourished water by means of the pulsating pump (1). After the Adee rinse, the rotational force of the motor (?1) is transferred to the inner tub (VF) By the clutch (V0) so that the dewatering process is initiated; i.e., the water soaked in the laundry is expelled to the outer tub (VY) through small holes formed on the side wall of the inner tub (VY) by centrifugal force due to Inner basin rotation (VF) The process chain, ie from the Jud© process to the dewatering process, is controlled by a control device (not shown) to be executed Ll

- q- during the washing and rinsing process; The cleaning efficiency is affected by the composition of the water stream; (1) and the agitation of the laundry generated by a pulsating pump (sal) the complex water stream in (1) according to a preferred embodiment of the present invention; the pulsating pump generates and; at the same time The washing clothes move with increasing frictional force between them to enhance the internal Y (VF) thus cleaning efficiency. Parts (1) and; the pulsating pump contains 1 as shown in the figures. It has a large formed area at an outer peripheral region, and a member (Y) an external spring member. A central spring (£) has a small area at a central region of it; and a rhomboid medial spring member (©).

Te between the outer spring member (7) and the central spring member (;). As shown in Figures 0 the outer spring member and the central spring member are molded resin in et and portion furthermore; A section (01) of a single body is rotated to form an input winding axial drive body (1) shaped under the central spring member (£) by inserting and fitting the input winding axial section (1) firmly around Rotary axis The rotational thrust force is transmitted between the outer spring member (7) and the member (Yo) to it by means of the clutch (VE) of the motor 1 central spring (£) of the running body (17); a cavity is formed Fixing the middle spring member (0) A sliding motion support bracket oF is further mounted; as shown in figure L(V) by (01) and fixed with the running body (V) in Intermediate spring-retaining cavity Bolts (1) fitted into a set of holes provided in the bottom surface of the spring-retaining cavity

Coy. For rotation, the insertion of the middle spring member (7) into the ALE support bracket is done in the middle L(V) image (*). As shown in the figures, a carrying ring (10) shaped in its outer circumferential side to have the shape of a completely rectangular sector with one open side, to carry the middle spring member (©) on which it is mounted; and a connecting ring part (bear); It is machined in the inner circumferential side of the sliding movement support bracket (0) and is interlocked with the connecting hook (17) formed in the circumferential side parts of the middle spring member (©). Sliding motion support bracket (0) fixed and formed (“C”) formed (SF) on the actuating body (10); a pair of concentric rings are placed under the lower surface of the center spring member (©) on either side of the section The bearing ring (0) has very small 0 intervals between them, as shown in Fig. “. Further, the sliding movement projections emanating between the concentric rings (“b” and (“c”) are in contact with the apex of the bearing ring section (av) on a support bracket (VF) so that in a rotatable way the middle spring member (io) the sliding movement (0) is further carried; Hook-shaped sections of the connecting hook (a) formed in the middle spring member (©) are combined with those of the connecting ring part (0) of the sliding vo motion support plate (0) Therefore; the inserted middle member (©) is preserved In a supporting bracket, the sliding motion (0) is in it without being disengaged from it. By means of the two concentric rings (fo) in which both side walls of the bearing ring part and (“c) are enclosed with precise intervals between them by means of The strength of the structure as the middle spring member (1) is inserted into the sliding movement support bracket (5); an air trap is created above the upper surface of the © (©) section

- 11 -

The carrying ring (10) in which the middle spring (©) is turned by a sliding motion. This is why grains of coarse sand or the like cannot enter the upper surface of the bearing ring section oo) so that the rotation of the middle spring (©) cannot be disturbed thereby . Furthermore it; where foreign matter is discharged; Jie coarse grains of sand and the like; inserted into the cavity for fixing the intermediate spring member 0 (7) through a space between the intermediate spring member (7) and the outer spring member (Y) through holes (Iv) formed in the lower surface of the cavity for installing the intermediate spring member (71); The disturbance of rotation of the middle spring member (7) is prevented by the interlocking of coarse sand grains and the like. Furthermore it; A notch is machined on each of the two inner circumferential surfaces of the center spring mounting hole (V) with a circumferential projection (QV) formed at 0 inner circumferential side of the notch; Down suspension parts (7e) and (“f”) are extruded from the outer and inner circumferences of the middle spring member L(V) therefor; Foreign matter tie coin and the like may be prevented from entering the space between the middle spring member (©) and the outer spring member (7) and that between the middle spring member (¥) and the central spring member

(4). 1 The outer spring member (1), the middle spring member (©) and the central spring member (;); have differently sloped Line surfaces and a number of blades (Y£)s (Y¥)5 (YY) are machined ) which are extruded upwards; on corresponding curved surfaces. In this specification, the effective diagonal width of the middle spring member (©) is about half of the outer spring member (1) and that of the center spring the Y/Y of that spring Central (©) approx. As © _shown in Figure oF Central spring has a convex curved surface that is progressively inclined downward in each direction from the apex of the spindle; central blades (YE) extrude upwards on an inclined curved surface

17 - - down. The central spring member (©) has a concave curved surface which is subsequently the downward curved surface of the central spring member (4) and »; At the same time; Inclined upwards in diagonal directions outward. Intermediate (YY) blades are extruded upwards on the concave curved surface. The outer spring member (7) has a curved, concave surface that is inclined upward from its inner circumference; which is the apex of the concave curved surface and subsequent to the upwardly curved surface of the central spring member (oF) and then gradually flows upward towards its outer circumference. Oversized outer blades (YY) extrude upwards on the concave curved surface. When the pulsating pump (1) referred to before is rotated, a circulating water stream of large size is generated in a horizontal direction by the external pulsating member (1) which is the largest in area of all its pulsating members Large outer (YY) blades formed on it A rotating water current is generated, which rotates with the outer spring member (?). The middle spring element (©) is not forcefully acted upon, but instead a frictional force is transmitted Generated by water currents and washing clothes to the middle spring member (©). Therefore, the middle spring member (7) begins to rotate after the start of rotation of the outer spring member (7) and the central spring member (4). 1 generates rotation of the middle spring member (©) The ele current is in a vertical direction, which in turn changes to an oblique direction because the rotating water stream generated by the central spring (;) moves outward and thus exerts a force on the water current generated by the central spring (©). Three types of pulsators generate water currents in succession and delay processes occur in the rotation of the middle pulsator (oF) causing a complex water current generated in the inner basin (VY)© thus; Frictional motions between wash clothes are increased due to complex agitation and can be done efficiently to remove dirt from laundry clothes by twisting and vertical movements of it.

Together the peaks of the middle (YF) blades formed on the middle spring member (©) are set lower than those of the outer (YY) and central blades (YE) so that the middle spring member (V) can be prevented from being Its rotation is in unison with the outer spring member (7) and the central spring member (£) due to the laundry clothes attached to it. By doing so, the function of the middle spring member 0 (©) is prevented from being corrupted and; in the same ccd) it is prevented The effect of great stress on the central pulsating member (3). Furthermore it; Protrusions (YO) are formed between the outer (YY) blades to increase friction between the outer spring (Y) and the laundry. Stable in the parts of the cavity between the outer blades (77). So; Laundry clothes can be agitated more efficiently by means of the outer 0 spring (Y) although the preferred form of the invention Jal is explained for a pulsating pump used in a fully automatic washing machine; It should be realized by those skilled in the art that the pulsating pump of the invention may be equally applied to obtain the same effects in other types of washing machines; For example; A twin-tub washing machine that has a separate wash-tub and water-removing tub or a washer-dryer adds a drying function to the functions of an ALIS automatic washing machine. As indicated before; According to a preferred embodiment of the present invention; The pulsating pump contains three sections; any; The central spring member, the outer spring member, and the middle spring member set between them. In Als the gual rotates the central spring and the outer spring member. The rotation of the middle spring produces a stream of water which is added to the 0 other water currents generated by the rotation of the center spring and those of the YY EA spring

_— $ \ _ outer; The overlap between them creates a complex stream of water. Thus, 6 friction forces between laundry clothes are increased due to their complex movements; So that the cleaning efficiency can be enhanced. Although the invention has been stated and explained in relation to the preferred embodiment; It will be understood by those skilled in the art that various alterations and modifications may be made without departing from the spirit and scope of the invention as specified in the following claims. YYEA

Claims (1)

And 1 - Protection Elements 1-1 pulsator for a washing machine that is rotated by means of 0 rotational operation and installed on an inner bottom part of the tub n bottomner part washing machine for conditioning 0 clothes washing and water ded The washing machine tub has an open top; The pump contains: ¢ - central pulsating member [008©_to be set within a radial distance of 1° from the rotational axis of the aide 4 pulsator Wi dpe lid eq group " - member outer pulsating member - set within a second radial distance A inward from the outer periphery of the pulsator having a number of outer blades 1 popping up; and Y - intermediate pulsating member #4 In a rotatable way 11 insert it between the central pulsating member and the outer VY spring member, the outer pulsating member, and it has a set of intermediate blades popping out, lel VY, as the intermediate pulsating member is interchangeable 0 for rotation with respect to the central pulsating member and the outer 1 spring member 0 outer pulsating member oy 1 the pulsator according to the element of protection (1) where the diagonal width of the middle spring member is half that The width of the outer pulsating member is approximately 7 and the diagonal width of the central pulsating member is half ¢ of that of the intermediate pulsating member approximately. YYEA 1 #*- pulsator according to claim (1) or (7); Cua the central pulsating member Y and the outer spring member v 8 are molded 1 ¢— pulsator according to protection (1) or (7); wherein the central pulsating member 7 has the shape of a hemisphere; its apex is set on the rotational axis i yall 1. —o 1 pulsator According to claim (1) or Cua oY) the intermediate pulsating member 7 has a curved surface inclined upward towards an outward diagonal direction Y c. 1 +- the pulsator according to the element of protection (1) or (7); where the outer pulsating member has a curved surface inclined downward from its inner circumference to YF with a central region of it approximately in diagonal direction and inclined upward towards its outer circumference; the inner circumference ¢ being the apex of the outer pulsating member + 1-1 the pulsator according to protection (1) or oY) where is specified Place the peaks of the X | center blades at a lower level than that of the center blades | Y and outer blades. YYEA 1 - - 1 + the pulsator according to protection element (1); where the “intermediate pulsating member” is combined with a sliding movement support bracket that is installed in the YF spring member fixing cavity intermediate pulsating member ¢ and a cavity is set; the intermediate pulsating member is held between the central pulsating member 8 and the outer pulsating member 1 and includes a support ring portion 1 4- The pulsator according to the protection element Cun (A) The intermediate pulsating member Y contains: v - a pair of concentric rings facing the side walls of the support ring portion ¢ with spacers between them and © - sliding action projections in sliding contact with the upper surface of the annular portion .support ring portion Jeall 1 -01 1 pulsator according to protection element (A) in which the "lower surface" of the intermediate pulsating member is provided with holes. pulsator according to protection oA) in which 7° is machined on each lateral circumferential surface of the middle spring fixing cavity 0 intermediate pulsating member 1