JP2009201596A - Detergent feeder for washing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent residual water from being generated in an upper water path of a water pouring port when tap water supply is stopped in a detergent feeder for a washing machine. <P>SOLUTION: The detergent feeder includes: a detergent case provided with a detergent feed part; a water pouring device for withdrawably housing the detergent case; a plurality of water pouring ports provided in the water pouring device, for pouring water to the detergent feed part; a water path for guiding the water to the water pouring ports; and a residual water lead-out member provided with an inclined surface on the lower part of the water pouring port and provided with a plurality of openings wider than the water pouring port on the inclined surface. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a detergent charging device for a washing machine.

  2. Description of the Related Art A washing machine is used in a washing machine in which a detergent is poured while being dissolved in a washing tub at the start of washing. The detergent charging device is configured such that a drawer type detergent case can be stored in the water injection device, and water is poured into the stored detergent case from above, and the supplied detergent is poured out while being dissolved (for example, Patent Document 1).

Patent No. 3791138

  However, in the above-mentioned Patent Document 1 and the like, since the water injection ports composed of a plurality of circular holes provided in the water injection device are arranged horizontally, when water supply from tap water stops, The force by which water drops from the water inlet due to gravity and the force to pull back upward by surface tension are easily balanced. When this equilibrium state occurs in each water inlet, air does not enter the upper water channel of the water inlet, water does not fall, and residual water is generated in the upper water channel of the water inlet. And when the residual water of the upper water channel of this water inlet falls by vibration by rotation of the washing tub at the time of dehydration in the subsequent stroke, there is a problem that water falls into the washing tub and wets clothes.

  This invention respond | corresponds to the said subject, and when the water supply from a tap water stops, it is a washing machine provided with the water injection apparatus which is hard to remain in a waterway, and the said detergent injection | throwing-in apparatus.

  The present invention solves the above-mentioned problem, and includes a detergent case having a detergent charging part, a water pouring device that accommodates the detergent case so that it can be pulled out, and a water pouring device provided in the water pouring device for pouring water into the detergent charging part. A plurality of water inlets, a water channel for guiding water to the water inlet, and a residual water outlet member having an inclined surface at a lower portion of the water inlet and having a plurality of openings wider than the water inlet on the inclined surface. Is.

  A detergent charging device for a washing machine according to the present invention includes a detergent case having a detergent charging portion, a water pouring device for retractably storing the detergent case, and a plurality of the water pouring devices provided in the water pouring device for pouring water into the detergent charging portion. A water channel that guides water to the water inlet, and a residual water outlet member that has an inclined surface at a lower portion of the water inlet and has a plurality of openings wider than the water inlet on the inclined surface. When the water supply from the tap water stops, the water held between the remaining water outlet member and the water inlet and the water remaining in the water channel are integrated via the water inlet, and the inclined surface It is derived from the opening on the lower side. At the same time, air flows into the water channel from the water injection port located at the upper part of the opening on the higher side of the inclined surface. At this time, since the water between the remaining water outlet member and the water inlet flows from a high position to a low position, the extraction of water from one side of the water channel and the inflow of air from the other continue. As a result, the remaining water in the waterway is reduced, so that the water remaining in the upper waterway of the water inlet falls due to vibration caused by rotation of the washing tub during dehydration, and the water falls into the washing tub and wets the clothes. The problem can be solved.

Embodiment 1 FIG.
1 is a perspective view showing a partial cross section of a detergent charging device for a washing machine according to Embodiment 1 of the present invention, FIG. 2 is a side cross sectional view thereof, FIG. 3 is a front cross sectional view thereof, and FIG. FIG. 5 is an explanatory diagram showing the positional relationship between the remaining water outlet member and the water inlet, FIG. 6 is an explanatory diagram showing the state of water outlet when viewed from the front cross section of the inlet and the residual water outlet member, FIG. 7 is an explanatory diagram showing the state of water derivation when viewed from the cross section AA ′ in FIG. 6, and FIG. 8 is an explanation of the state of derivation of water when viewed from the cross section BB ′ in FIG. FIG.

  The detergent charging device 1 includes a detergent case 2 and a water injection device 3. The detergent case 2 includes a detergent charging part 4 whose bottom surface is inclined downward and a detergent outlet 5 at a lower rear part of the detergent charging part 4 and is stored in a state where it can be pulled out to the water injection device 3. The water injection device 3 injects tap water supplied from the water supply pipe 6 into the detergent charging section 4 of the detergent case 2 through a plurality of circular water injection ports 8 having a diameter of 3 mm through a water channel 7 having a space height of 5 mm. The detergent 9 introduced into the detergent introduction unit 4 is poured out from the detergent outlet 5 together with water by water injection from the water inlet 8, and is introduced into the washing tub from the outlet 10.

  The remaining water outlet member 11 is provided at the lower part of the water injection port 8 and has an inclined surface 12 inclined to the lower right in a direction perpendicular to the depth direction of the water injection device 3, and the length of one side of the inclined surface 12 is 9 mm. The four openings 13 made of a square and a frame body 14 having a width of 4 mm that forms the periphery of the opening 13. The distance between the upper surface of the inclined surface 12 and the water inlet 8 is 1 mm at the left end, 3 mm at the right end, and the inclination angle is about 2 degrees. In addition, the front side of the frame body 4 has a rib 15 that forms a vertical surface. The remaining water outlet member 11 is made of a resin material having a thickness of 1.5 mm, such as polypropylene, ABS, or polyethylene.

FIG. 5 is a view of the state in which the remaining water outlet member 11 is installed at the lower part of the water injection port 8 as viewed from below, and the upper side of the drawing corresponds to the front side of the water injection device 3. The horizontal installation position of the remaining water outlet member 11 at the lower part of the water inlet 8 is such that one water inlet 8 overlaps the upper part of one of the openings 13, and the upper part of the frame body 14 has an upper part. The plurality of water inlets 8 are configured to overlap.

Next, the derivation behavior of the water filled in the water channel 7 from the water inlet 8 when water supply from the tap water stops will be described with reference to FIGS.
When the water channel 7 is supplied with water from the water supply pipe 6, the interior is filled with water. At the same time as the water supply stops, the flow of water stops. The water continuously flowing out from the opening 13 is interrupted under the opening 13, and most of the water drops as water drops. When the water supply stops, water is filled between the water inlet 8 and the remaining water outlet member 11, and the water held in this portion and the water in the water channel 7 continue through the water inlet 8. Therefore, the surface tension of water at the water inlet 8 is not generated. Since the remaining water outlet member 11 is inclined to the right side, the water retained at the top flows out from the opening 13 while flowing to the right side.
In addition, since the opening 13 of the residual water outlet member 11 is a square opening having a side of 9 mm, the weight of water applied to the upper portion of the opening 13 is larger than the force for staying in the opening 13 due to the surface tension of water. The water flows out from the opening 13 without stagnation. Here, the water in the water channel 7 is continuous with the water 16 flowing out from the opening 13 as shown in FIG.

On the other hand, at the same time as the flow to the right side of the water occurs, water disappears from the periphery of the left opening 13 of the residual water outlet member 11, and therefore, as shown in FIGS. Air 17 flows in. And since the derivation | leading-out of the water from the right side opening 13 and the water inlet 8 and the inflow of the air from the left side continue, the water with which the water channel 7 was satisfy | filled is derived | led-out.

Since the frame 14 of the residual water outlet member 11 is disposed below the water inlet 8, it is easy to hold the water between the residual water outlet member 11 without being pulled away from the water inlet 8 when water supply stops. Play. In addition, since the frame body 14 is disposed below the water injection port 8, water hits the frame body 14 during water supply, but is dammed by the ribs 15, so that it does not leak to the near side of the water injection device 3.

In the first embodiment, the shape of the opening 13 is a square having a side of 9 mm. However, the shape is not limited to this, and an opening of a substantially square having a side of 8 mm to 12 mm has the same effect of deriving water from the water channel 7. Obtainable. Moreover, even if there are variations such that the sizes of the plurality of openings 13 are different or some of the openings are small, it is possible to obtain the water derivation effect of the water channel 7.

In the first embodiment, the inclined surface 12 is inclined at about 2 degrees. However, the present invention is not limited to this. Even when the inclined angle is 1 degree, the water deriving effect of the water channel 7 can be obtained. it can. If the inclination angle of the inclined surface 12 is too large, the effect of retaining water between the water injection port 8 and the remaining water outlet member 11 is reduced, and therefore it is desirable to be within 5 degrees.

In the first embodiment, the distance between the water inlet 8 and the remaining water outlet member 11 is 1 mm at the left end and 3 mm at the right end. However, the present invention is not limited to this. However, it is desirable that the size be 5 mm or less.

Embodiment 2
FIG. 9 is an explanatory view showing the positional relationship between the remaining water outlet member and the water inlet of the detergent charging device according to the second embodiment. In the figure, the same parts as those of the first embodiment are denoted by the same reference numerals and the description thereof is omitted. In the figure, the upper side corresponds to the front side of the water injection device 3. The openings 18 are circular openings having a diameter of 12 mm provided on the inclined surface 12 of the residual water outlet member 11, and the frame body 19 around the openings 18 has a distance between adjacent openings 18 and a distance to the end. The minimum portion is 4 mm. Further, the horizontal installation position of the remaining water outlet member 11 at the lower portion of the water inlet 8 is such that one water inlet 8 overlaps the upper portion of one of the openings 18, and the upper portion of the frame 19. The plurality of water inlets 8 are configured to overlap each other.

When the water supply from the tap water stops, the behavior of the water filling the water channel 7 from the water inlet 8 is the same as in the first embodiment, but the area of the frame 19 that holds the water is partially By widening, the water retention effect of the residual water deriving member 11 is improved, and the water deriving effect is enhanced.

In the second embodiment, the shape of the opening 18 is a circular shape having a diameter of 12 mm. However, the shape is not limited to this, and a circular opening having a diameter of 9 mm to 14 mm similarly has the effect of deriving water from the water channel 7. Obtainable. In addition, even if the shape of the opening 19 is not a perfect circle or varies such as having an irregular portion, the effect of deriving water from the water channel 7 can be obtained.

The perspective view which showed the partial cross section of the detergent injection device of the washing machine of Embodiment 1. FIG. FIG. 3 is a side cross-sectional view of the detergent charging device for the washing machine according to the first embodiment. FIG. 3 is a front sectional view of the detergent charging device for the washing machine according to the first embodiment. The top view which shows the opening shape of the water injection opening of the water injection apparatus of the detergent injection device of the washing machine of Embodiment 1. FIG. Explanatory drawing which shows the positional relationship of the residual water derivation | leading-out member of the detergent injection device of the washing machine of Embodiment 1, and a water inlet. Explanatory drawing which showed the derivation | leading-out state of the water at the time of seeing from the front cross-section of the water inlet of the detergent injection device of the washing machine of Embodiment 1, and a residual water derivation | leading-out member. Explanatory drawing which showed the derivation | leading-out state of the water at the time of seeing from the cross section AA 'in FIG. 6 of the detergent injection device of the washing machine of Embodiment 1. FIG. Explanatory drawing which showed the derivation | leading-out condition of the water at the time of seeing from the cross section BB 'in FIG. 7 of the detergent injection device of the washing machine of Embodiment 1. FIG. Explanatory drawing which shows the positional relationship of the residual water derivation | leading-out member of the detergent injection device of Embodiment 2, and a water injection opening.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Detergent input device, 2 Detergent case, 3 Water injection apparatus, 4 Detergent input part, 5 Detergent outflow port, 6 Water supply pipe, 7 Water channel, 8 Inlet, 9 Detergent, 10 Outlet, 11 Remaining water derivation member, 12 Inclined surface , 13 opening, 14 frame, 15 rib, 16 water, 17 air, 18 opening, 19 frame

Claims (11)

  A detergent case having a detergent charging part, a water injection device for retractably storing the detergent case, a plurality of water injection holes provided in the water injection apparatus for pouring water into the detergent charging part, and water for the water injection port A detergent charging device for a washing machine, comprising: a water channel to be guided; and a remaining water outlet member having an inclined surface at a lower portion of the water injection port and having a plurality of openings wider than the water injection port on the inclined surface.   The residual water lead-out member is arranged such that at least one water injection port is positioned above the opening at the lowest position among the plurality of openings provided on the inclined surface, and a frame around the plurality of openings. The detergent charging device for a washing machine according to claim 1, wherein at least one water injection port is positioned at an upper part of the body.   3. The detergent charging device for a washing machine according to claim 1, wherein the opening provided in the inclined surface of the residual water outlet member is a substantially square having a side of 8 mm to 12 mm.   The detergent charging device for a washing machine according to claim 1 or 2, wherein the opening provided in the inclined surface of the residual water outlet member has a substantially circular shape with a diameter of 9 mm to 14 mm.   The detergent charging device for a washing machine according to any one of claims 1 to 4, further comprising a portion in which a width of a frame around an opening provided on the inclined surface of the residual water outlet member is 3 mm or more.   The opening provided in the inclined surface of the residual water outlet member is a substantially square with a side of 9 mm, and the width of the frame around the opening is 4 mm. Washing machine detergent input device.   The detergent charging device for a washing machine according to claim 1 or 6, wherein an inclination angle of the inclined surface of the residual water outlet member is in a range of 1 to 5 degrees.   The inclined angle of the inclined surface of the residual water outlet member is in the range of 1 to 3 degrees, and the distance between the water injection port and the opening of the residual water outlet member is 4 mm or less. The detergent charging device for a washing machine according to claim 1.   The detergent for a washing machine according to any one of claims 1 to 8, wherein a rib for preventing water from leaking to the front side in the pulling-out direction of the detergent case is provided in the frame of the residual water outlet member. Input device.   The detergent charging device for a washing machine according to any one of claims 1 to 9, wherein a height of a water channel space of the water injection device is 10 mm or less.   A washing machine equipped with the detergent charging device according to claim 1.

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