JP2000350896A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To constitute a water feed pump of a washing machine mounted with this water feed pump at a washing machine body in such a manner that the fixation of the water feed pump is enabled by a structure capable of decreasing the noises at the time of operation of the water feed pump. SOLUTION: Elastic bodies 14 and 19 are respectively disposed in the lower part and upper part of the water feed pump 7 and the water feed pump 7 is fixed by these two elastic bodies 14 and 19, by which the transfer of the vibration when the water feed pump 7 operates to the washing machine body 1 is shut off by the two upper and lower elastic bodies 14 and 19 and the water feed pump 7 is kept fixed in this state to the washing machine body 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a washing machine in which a water supply pump is mounted on a washing machine body.

[0002]

2. Description of the Related Art In recent years, a washing machine equipped with a washing machine body having a washing tub and a water supply pump for supplying bath water or the like into the washing tub has been provided. In this case, the water supply pump is placed on an elastic body such as rubber so that the vibration when the water pump is activated is not transmitted to the washing machine body,
In this state, the washing machine is fixed to the washing machine main body with a band, a claw, or a screw so that the washing machine does not move due to vibration during operation, vibration during transportation, or the like.

[0003]

However, when the water supply pump is fixed to the main body of the washing machine with the band, the claw or the screw as described above, the vibration when the water supply pump is operated causes the band, the claw or the screw to move. The vibration transmitted to the main body of the washing machine through the main body, and the transmitted vibration appears as noise from the main body of the washing machine.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and accordingly, it is an object of the present invention to provide a washing machine having a water supply pump mounted thereon, in which fixing the water supply pump reduces noise when the water supply pump is operated. An object of the present invention is to provide a washing machine having a structure that can be reduced.

[0005]

In order to achieve the above object, a washing machine according to the present invention is provided with a water supply pump mounted on a main body of the washing machine, wherein elastic bodies are respectively provided at a lower part and an upper part of the water supply pump. The water supply pump is fixed by the two elastic bodies (the invention of claim 1). According to this configuration, the vibration when the water supply pump is operated is not transmitted to the main body of the washing machine by the upper and lower elastic bodies, and in this state, the water supply pump is kept fixed to the main body of the washing machine.

In this case, it is preferable that the water supply pump has a water suction port at an upper portion, and an upper elastic body is disposed around the water suction port (the invention of claim 2). In this case, the upper portion of the water supply pump can be fixed by using a smaller elastic body by using the water suction port of the water supply pump.

The upper elastic body preferably has a plurality of portions in contact with the water inlet of the water supply pump in the vertical direction (the third aspect of the invention). In this case, the upper portion of the water supply pump can be more firmly fixed by the upper and lower portions of the upper elastic body that comes into contact with the water inlet of the water supply pump.

[0008] The upper elastic body may have a plurality of portions in contact with the water inlet of the water supply pump in the circumferential direction of the water inlet. In this case, the contact area of the upper elastic body with respect to the water inlet of the water supply pump is reduced, and the transmission of vibration from the water supply pump to the main body of the washing machine via the elastic body is correspondingly reduced.

The water supply pump has a concave portion at a lower portion,
It is preferable that a lower elastic body is fitted into the recess (the invention of claim 5). In this case, the movement of the lower elastic body with respect to the water supply pump is prevented by the concave portion at the lower part of the water supply pump, and the water supply pump is more firmly fixed.

It is also possible that a recess is formed in the main body of the washing machine, and a water supply pump is disposed in the recess at a predetermined distance from the periphery thereof. In this device, the water supply pump does not normally come into contact with the periphery of the depression of the washing machine main body, but when it receives a shock such as a drop during transportation, the water supply pump comes into contact with the periphery of the depression. Further movement is prevented, and departure from the home position is prevented.

Furthermore, a barrier may be provided upright on the main body of the washing machine, and a water supply pump may be provided inside the barrier at a predetermined distance from the barrier (the invention of claim 7). Even in this case, normally, the water supply pump does not contact the barrier of the washing machine main body, but when receiving a shock such as a drop during transportation, the water supply pump contacts the barrier and further movement is prevented, Departure from the home position is prevented.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. First, FIG. 2 shows a washing machine main body 1, in which a housing 2 includes an outer box 3 and a top cover 4 attached to the uppermost part thereof. For example, a washing / dehydrating tub and a drive mechanism for washing and dehydrating in the tub are provided.

The top cover 4 is provided with a lid 5 for opening and closing a laundry entrance (not shown) at a central portion, and a concave step portion 6 serving as a pump disposing portion is formed at the rear side portion so as to have a full width. A water supply pump 7 and a water injection case 8 are disposed in the center of the concave step portion 6, and the water supply pump 7 serves as an external water source such as bath water in a bathtub (not shown) at home. The water is sucked and supplied into the above-described tank, and the water injection case 8 guides the supplied water into the tank.

FIG. 3 shows the water supply pump 7 alone. The water supply pump 7 includes a drive unit 9 having a motor (not shown) built therein, and a suction / water discharge unit 1 connected to the drive unit 9.
In the suction / water discharge unit 10, pump blades (not shown) that are driven to rotate by the drive unit 9 are located. Further, the suction and discharge section 10 has an upper part, in this case,
A short cylindrical water inlet 11 is formed on the upper surface, and a short cylindrical water outlet 12 is formed on the upper side.
The pump blade described above absorbs water from the water inlet 11 and discharges water from the water outlet 12.

Further, on the outer bottom surface of the water supply pump 7,
One downward portion 13 is formed in the driving portion 9 and two downward portions 13 are formed in the suction / water discharge portion 10. The concave portion 13 has a short cylindrical shape, and a lower elastic body 14 is fitted in each of the concave portions. The lower elastic body 14 is made of, for example, rubber or an elastomer, and has a short columnar shape.
The upper half is fitted into the inside, and the lower half is projected outward and downward from the recess 13.

On the other hand, a concave portion 15 shown in FIG. 1 is formed at the center of the concave step portion 6 of the top cover 4, and the above-described lower portion is formed on the inner bottom surface of the concave portion 15. The water supply pump 7 is provided via the elastic body 14. Here, the recess 15 has a shape along the outer shape of the water supply pump 7, and for example, circular ribs 16 as positioning means are provided on the inner bottom surface of the recess 15 by the number of lower elastic bodies 14. The lower end of the lower elastic body 14 is fitted and positioned in each of the ribs 16 so that a predetermined distance L is provided between the peripheral portion 15a of the recess 15 and the water supply pump 7. . In this state, the water supply pump 7
As shown in FIG. 2, the water outlet 12 is connected to the water injection case 8.

A back cover 17 for closing the open portions on the upper surface and the rear surface of the concave step portion 6 is provided as a fixing member for the water supply pump.
7, a hole 18 serving as a fixing portion is formed at a position corresponding to the water inlet 11 of the water supply pump 7. The upper elastic body 19 is mounted in the hole 18. The upper elastic body 19, like the lower elastic body 14, is made of, for example, rubber or an elastomer.
As shown in the figure, the end of the hole 18 is an annular one which is attached so as to border the inner periphery, and one endless annular contact portion 1 is provided on the inner periphery.
9a.

In the upper elastic body 19, an annular projection 20 is formed in the hole 18 of the back cover 17 inward from the inner peripheral edge, and an annular projection 21 is also formed downward. Then, the upper elastic body 19 is hung on these to more securely prevent the upper elastic body 19 from falling off.

A back cover 17 is attached to and fixed to the concave step 6, and at this time, the upper elastic body 1
9 into the water suction port 11 of the water supply pump 7,
The upper elastic body 19 is arranged around the water intake port 11 by making a close to the outer peripheral surface of the water intake port 11. Thus, the elastic members 14 and 19 are arranged at the lower part and the upper part of the water supply pump 7, respectively, and the water supply pump 7 is fixed by the two elastic bodies 14 and 19.

In this state, a connection hose 22 (see FIG. 2) connected to an external water source such as the bathtub is connected to the water suction port 11 of the water supply pump 7 projecting upward from the upper elastic body 19. I have to. In addition, in the concave step part 6,
A water supply valve (not shown) for supplying tap water into the tank,
A water level sensor and the like for detecting the level of water stored in the tank are also provided, and the water injection case 8 introduces water supplied through the water supply valve into the tank.

As described above, in this construction, the water supply pump 7 is fixed by the elastic members 14 and 19 disposed on the lower part and the upper part thereof, and is fixed by a band, a claw or a screw like a conventional one. Not doing that. Therefore, the vibration when the water supply pump 7 is operated also differs from the conventional band, claw or screw, in that the upper and lower elastic members 14,
By 19, the transmission to the washing machine main body 1 is cut off, and in this state, the water supply pump 7 continues to be fixed to the washing machine main body 1, and thus, when the water supply pump 7 operates, Noise from the washing machine main body 1 due to vibration can be reduced.

FIG. 5 shows the results of an experiment conducted by the inventor to express this fact. The horizontal axis represents the frequency (unit: Hz) of the sound emitted from the water supply pump 7, and the vertical axis represents the sound. , That is, the noise value (unit: dB) is shown by comparing this configuration (solid line) with the conventional configuration (broken line). In this case, the structure of the present embodiment corresponds to the elastic body 1 described above.
The water supply pump 7 is fixed by using the water supply pumps 4 and 19, and in the conventional one, the water supply pump is simply placed on an elastic body and fixed to the main body of the washing machine with claws. As is clear from the experimental results, this configuration has a lower noise value at almost all frequencies of the sound emitted from the water supply pump 7 than the conventional configuration.

In addition, in the case of the above-mentioned structure, the upper elastic body 19 is provided with the water inlet 1 formed in the upper part of the water supply pump 7.
It is arranged around 1. Thus, the upper part of the water supply pump 7 is fixed by using the water suction port 11 of the water supply pump 7,
This can be achieved by using a smaller elastic body 19.

The upper elastic body 19 is provided with the water inlet 1.
1 to provide a waterproof seal between the hole 18 of the back cover 17 and the water inlet 11 by being in close contact with the outer peripheral surface of the back cover 17, so that when the hose 22 is removed from the water inlet 11, Water coming out of the hose 22 flows from the space between the hole 18 of the back cover 17 and the water inlet 11 to the back cover 1.
7 can be prevented from entering.

Further, the water supply pump 7 has a concave portion 13 in a lower portion, and a lower elastic body 14 is fitted in the concave portion 13.
Accordingly, the movement of the lower elastic body 14 with respect to the water supply pump 7 is prevented by the recess 13, and the water supply pump 7 can be more firmly fixed accordingly.

Further, the main body 1 of the washing machine is
A concave portion 15 is formed in the concave step portion 6 of FIG.
The water supply pump 7 is disposed at a predetermined distance L from the peripheral portion 15a. As a result, the water supply pump 7
Does not come into contact with the peripheral portion 15 a of the recessed portion 15, and keeps the vibration when the water supply pump 7 is operated from being transmitted to the washing machine main body 1. And when receiving the impact of dropping during transportation, etc., the water supply pump 7 moves more than usual,
The water pump 7, which is in contact with the peripheral portion 15 a of the recessed portion 15 and is prevented from moving further, can be prevented from coming off the fixed position of the water pump 7 elastically supported.
Therefore, in this case, the distance L is a predetermined length for that.

6 to 15 show the second to sixth embodiments of the present invention, in which the same parts as those in the first embodiment are denoted by the same reference numerals and the description is omitted. Only the different parts will be described. [Second Embodiment] In the second embodiment shown in FIG. 6, the upper elastic body 31 is separated from the water inlet 11 of the water supply pump 7 in place of the above-mentioned upper elastic body 19, and the upper surface of the water supply pump 7 An annular portion surrounding the water inlet 11 is provided between the lower portion and the lower surface of the back cover 7.

In this case, the upper surface of the water supply pump 7 and the lower surface of the back cover 7 have ribs for positioning the upper elastic member 31 in contact with the inner and outer peripheral portions of the upper elastic member 31. 32, 33, 34 and 35 are provided. Also in this case, noise can be reduced as in the first embodiment, and further intrusion of water that has entered the back cover 17 from between the hole 18 of the back cover 17 and the water inlet 11 can be prevented. The waterproof sealing effect can be obtained.

[Third Embodiment] In the third embodiment shown in FIGS. 7 and 8, the lower elastic member 1 having the above-mentioned short columnar shape is used.
4, the lower elastic members 41, 42 having a prismatic shape are used sideways, and these are formed in the downward concave portions formed on the outer bottom surfaces of the drive unit 9 of the water supply pump 7 and the suction / water discharge unit 10. 4
The water supply pump 7 is fitted on the inner bottom surface of the concave step 6 of the top cover 4 via lower elastic members 41 and 42.

Lower elastic members 41 and 42 and concave portions 43 and 4
Even if it is such a structure, the noise can be reduced as in the first embodiment, and the water supply pump 7 can be more firmly fixed. Also in this case, a rib 45 as a positioning means is provided on the inner bottom surface of the recessed portion 15 so as to be aligned with the lower elastic members 41 and 42, and the lower ends of the lower elastic members 41 and 42 are respectively provided on the rib 45. Are fitted and positioned so that a predetermined distance L is provided between the peripheral portion 15a of the recess 15 and the water supply pump 7.

[Fourth Embodiment] The fourth embodiment shown in FIGS.
In the embodiment, instead of the above-described upper elastic body 19,
The upper elastic body 51 having upper and lower contact portions 51a and 51b corresponding to the contact portion 19a is used.
The a and 51b are brought into close contact with the outer peripheral surface of the water inlet 11 of the water supply pump 7.

By doing so, the water supply pump 7
Of the upper part of the vehicle can be made more firmly. Also, in this case, a waterproof sealing effect of preventing water from entering the back cover 17 from between the hole 18 of the back cover 17 and the water inlet 11 can be obtained more reliably. In this case, the contact portion of the upper elastic body 51, that is, the portion that comes into contact with the water inlet 11 of the water supply pump 7 is vertically moved by two.
More than one (contact portions 51a, 51b) may be provided.

Fifth Embodiment In the fifth embodiment shown in FIGS. 11 and 12, a plurality of abutting portions 61a are provided in the circumferential direction of the water suction port 11 in place of the above-mentioned upper elastic body 19. An upper elastic body 61 having ten (in the illustrated example) is used, and all the contact portions 61a are closely contacted with the outer peripheral surface of the water inlet 11 of the water supply pump 7.

By doing so, the water supply pump 7
The contact area of the upper elastic body 61 with respect to the water inlet 11 is reduced, and the upper part of the water supply pump 7 can be fixed with appropriate strength. By reducing the fixing force, the flexibility of the upper elastic body 19 is increased, so that the vibration during the operation of the water supply pump 7 can be more reliably prevented from being transmitted to the main body 1 of the washing machine. The noise from the washing machine main body 1 due to the vibration of the pump 7 can be more reliably reduced.

In this case, the fixing force of the upper part of the water supply pump 7 by the upper elastic body 61 can be adjusted by the number of abutting parts 61a, that is, the number of parts that come into contact with the water inlet 11 of the water supply pump 7. FIG. 13 shows that the fixing force can be further reduced.
As shown in (5), the number of contact portions 61a may be reduced, and conversely, to increase the fixing force, the number of contact portions 61a may be increased.

[Sixth Embodiment] In a sixth embodiment shown in FIGS. 14 and 15, a recess 15 is formed in the concave step 6 of the top cover 4 of the washing machine main body 1 instead of forming the recess 15. 7
In this case, the water supply case 1 is erected in an L-shape extending from a side portion opposite to the water injection case 8 side to a rear portion, and water is supplied to an inner portion of the barrier 71 at a predetermined distance L from the barrier 71. Pump 7
Is arranged.

Even in this case, the water supply pump 7
Does not come into contact with the barrier 71, and keeps the vibration when the water supply pump 7 is operated from being transmitted to the washing machine main body 1. And when it receives the impact of dropping during transportation,
Since the water supply pump 7 moves more than usual, the water supply pump 7 comes into contact with the barrier 71 and is prevented from moving further. Thus, the water supply pump 7 can be prevented from coming off the fixed position. Therefore, also in this case, the distance L is a predetermined length for that.

The location of the water supply pump 7 is not limited to the concave step 6 of the top cover 4 of the washing machine main body 1, but may be another portion. In addition, the present invention is not limited to the embodiment described above and shown in the drawings, and can be implemented with appropriate modifications without departing from the scope of the invention.

[0039]

The present invention is as described above.
The following effects are obtained. According to the washing machine of the first aspect, in the case where the water supply pump is mounted on the main body of the washing machine, the water supply pump is fixed by the elastic body disposed at the lower part and the upper part of the water supply pump, thereby reducing noise when the water supply pump is operated. The structure can be reduced.

According to the washing machine of the second aspect, the upper portion of the water supply pump can be fixed by using a smaller elastic body by using the water inlet of the water supply pump. According to the washing machine of the third aspect, the upper portion of the water supply pump can be more firmly fixed by the upper and lower portions of the upper elastic body that comes into contact with the water inlet of the water supply pump.

According to the fourth aspect of the present invention, the contact area of the upper elastic body with respect to the water suction port of the water supply pump is reduced, and the transmission of vibration from the water supply pump to the main body of the washing machine via the elastic body is reduced. By making it possible to reduce the noise, the noise from the main body of the washing machine due to the vibration of the water supply pump can be further reduced. According to the washing machine of the fifth aspect, the lower elastic body is prevented from moving relative to the water supply pump, and the water supply pump can be more firmly fixed.

According to the sixth aspect of the present invention, while the vibration of the water supply pump is not transmitted to the main body of the washing machine at all times, when a shock such as a drop during transportation is received,
Excessive movement of the water supply pump can be prevented, preventing the water supply pump from deviating from its home position.

According to the seventh aspect of the present invention, the vibration of the water supply pump is not transmitted to the main body of the washing machine at all times. Can be prevented, and the water supply pump can be prevented from deviating from a fixed position.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional side view of a main part showing a first embodiment of the present invention.

FIG. 2 is a partially exploded perspective view of the washing machine.

FIG. 3 is a perspective view of the water supply pump with a lower elastic body attached thereto.

FIG. 4 is a plan view of an upper elastic portion.

FIG. 5 is a characteristic diagram

FIG. 6 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.

FIG. 7 is a view corresponding to FIG. 3, showing a third embodiment of the present invention;

FIG. 8 is a diagram corresponding to FIG. 1;

FIG. 9 is a view corresponding to FIG. 1 showing a fourth embodiment of the present invention;

FIG. 10 is a diagram corresponding to FIG. 4;

FIG. 11 is a view corresponding to FIG. 1 showing a fifth embodiment of the present invention.

FIG. 12 is a diagram corresponding to FIG. 4;

FIG. 13 is a view corresponding to FIG. 4 showing still another example of the upper elastic body.

FIG. 14 is a plan view of a main part showing a fifth embodiment of the present invention.

FIG. 15 is a rear view of a main part.

[Explanation of symbols]

1 is a washing machine main body, 7 is a water supply pump, 8 is a water injection case, 1
1 is a water intake, 13 is a recess, 14 is a lower elastic body, 15
Is a concave portion, 15a is a peripheral portion of the concave portion, 17 is a back cover, 18 is a hole, 19 is an upper elastic body, and 19a is an abutting portion of the upper elastic body (a portion in contact with a water inlet of a water supply pump). , 31 are upper elastic bodies, 41 and 42 are lower elastic bodies, 43 and 44 are concave parts, 51 is an upper elastic body, 51a,
51b is a contact portion of the upper elastic body (a portion in contact with the water suction port of the water supply pump), 61 is an upper elastic body, and 61a is a contact portion of the upper elastic body (contacts with the water suction port of the water supply pump). Part), 71 indicates a barrier, and L indicates a distance.

Claims (7)

[Claims] 1. A washing machine in which a water supply pump is mounted on a washing machine main body, wherein elastic bodies are arranged at lower and upper parts of the water supply pump, respectively, and the water supply pump is fixed by the two elastic bodies. Machine. 2. The washing machine according to claim 1, wherein the water supply pump has a water inlet at an upper portion, and an upper elastic body is arranged around the water inlet. 3. The washing machine according to claim 2, wherein the upper elastic body has a plurality of portions in the vertical direction that contact the water inlet of the water supply pump. 4. The washing machine according to claim 2, wherein the upper elastic body has a plurality of portions in contact with the water inlet of the water supply pump in a circumferential direction of the water inlet. 5. The water supply pump has a recess in a lower portion, and a lower elastic body is fitted in the recess.
The washing machine as described. 6. The washing machine according to claim 1, wherein a recess is formed in the main body of the washing machine, and a water supply pump is disposed in the recess at a predetermined distance from a peripheral portion thereof. 7. The washing machine according to claim 1, wherein a barrier is erected on the main body of the washing machine, and a water supply pump is disposed inside the barrier at a predetermined distance from the barrier.