JP3158991B2 - Washing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath water suction hose, and more particularly to a washing machine for improving the reliability of a water suction hose.

[0002]

2. Description of the Related Art Conventionally, a water-absorbing hose made of synthetic resin such as PVC and a joint for connecting a main body made of plastic or the like maintain the air-tightness of a water-absorbing hose connection portion with a fluid adhesive or filler.

More specifically, as shown in FIGS. 3 and 4, an adhesive reservoir 28b is provided on the uneven portion of the joint 28 for connecting the main body, so that the water-absorbing hose 27 is kept airtight.

Further, as shown in FIG. 4, in order to further fill the gap between the joint for connecting the main body 28 and the water-absorbing hose 27, a sealing tape 28c is wound around the uneven portion of the joint for connecting the main body, and an adhesive is further applied to the outer periphery thereof. Alternatively, the airtightness is improved by applying a filler.

The uneven shape of the body connection joint 28 is as follows.
It has a single arc shape (bamboo shoot shape) or a continuous arc shape (screw shape), and is provided with an adhesive or filler reservoir 28b in the uneven portion.

When an adhesive reservoir is provided in the joint for connecting the main body to fix the water-absorbing hose as described above, the water-absorbing hose is turned when an excessive force is applied clockwise or counterclockwise, and airtightness is reduced. There was a fear that a problem that the data could not be retained might occur.

In addition to this, the hose connection outer diameter of the joint for connecting the main body requires about 15% or more of a water-absorbing hose in order to maintain airtightness with an adhesive, so that the hose mounting workability is poor, and There has been a problem that the adhesive protrudes to impair the appearance.

[0008]

SUMMARY OF THE INVENTION An object of the present invention is to attach a synthetic resin hose band to a connection portion of a water-absorbing hose in order to maintain the airtightness of a joint for connecting a main body and a water-absorbing hose, thereby increasing the mounting strength. It is in.

[0009] The above object is to provide a bath for a back panel of a washing machine.
In a washing machine provided with a water suction pump, the bath water absorption
Attach a detachable fitting to the bath water inlet of the pump,
The joint has an irregular outer periphery and absorbs bath water.
A hose is connected and a connection between the joint and the water-absorbing hose
Before installation, both ends in the circumferential direction are open and the cross section is circular.
Hose band made of synthetic resin
Attached to the hose band and the water-absorbing hose.
This is achieved by welding with waves.

According to the present invention, a hose band having an arc-shaped cross section from the outer periphery can be easily attached to the joint between the joint and the water-absorbing hose , and an excessive twisting force acts on the hose.
Prevents relative rotation between the hose band and the water-absorbing hose.
Can be stopped.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Prior to the description of the present invention, the structure of a fully automatic washing machine will be described with reference to FIG.

In FIG. 1, 1 is a top cover of a washing machine, 2 is a controller for controlling the operation of the washing machine, and a controller 2 is built in front of the top cover 1;
It is composed of a microcomputer or the like having a timer function.

Reference numeral 3 denotes a membrane switch that allows the operator to externally specify the operation of the washing machine. Reference numeral 4 denotes a lid for covering a laundry input port 6 opened at the center of the top cover.
It opens upward with the axis as the axis. Reference numeral 7 denotes a cover for preventing the laundry from dropping between the washing and dewatering tub (hereinafter simply referred to as a washing tub) 8 and the outer tub 9, and is provided on the upper portion of the outer tub 9.

Reference numeral 10 denotes a dehydration hole provided on the wall surface of the washing tub 8. A balance ring 11 is fixed to the upper end of the washing tub 8 and reduces the amplitude of vibration generated in the washing tub 8 during the spin-drying operation.

The outer tub 9 is suspended above the outer frame 21 by a suspension rod 12 and elastically supports the outer tub 9 by inserting a spring 13 therebetween. Numeral 14 denotes a stirring blade, which is rotatably installed at the center of the bottom of the washing tub 8, and rotates and reverses in a short cycle during washing and rinsing.

Reference numeral 15 denotes a motor, which outputs the power of the motor 15 to a motor pulley 16, a belt 17, and a driven pulley 1.
8, through the clutch / deceleration unit 19, the stirring blade 14 is used for washing and rinsing, and the washing tub 8 and the stirring blade 14 are used for dewatering.
And are driven together.

Reference numeral 20 denotes a leg for supporting the outer frame 21, and reference numeral 22 denotes a drain hole provided at the bottom of the outer tub 9. Downstream of the drain hole 22, a drain solenoid valve 23 which opens and closes according to a command from the controller 2 is provided. And a drain hose 24.

Reference numeral 25 denotes a back panel in which a bath water suction pump 26 and a water supply solenoid valve 31 are incorporated.

Reference numeral 26 denotes a bath water suction pump whose casing is formed of a synthetic resin containing an antibacterial agent, and is incorporated in the back panel 25 of the top cover 1. Reference numeral 27 denotes a bath water absorption hose containing an antibacterial agent, the connection end of which is a joint 28.
Bath water inlet 26a provided on the upper surface of pump 26 through
Removably attached to.

FIG. 2 is a view showing the internal structure with the back panel 25 removed, and 1a is a water supply port provided on the top cover 1 for supplying tap water into the washing tub and a water supply port for supplying bath water. A softener is also supplied from the tap water inlet / bath water inlet 1a at the tap water inlet / bath water inlet that shares the same.

The bath water suction pump 26 is provided with a bath water suction port 2.
6a and a bath water discharge pipe 26b. In the back panel 25, a lid switch 29 and a water supply electromagnetic valve 31 are further incorporated, and the water supply electromagnetic valve 31 is provided integrally with a tap water receiving port 30 that is connected to a tap water faucet by a hose.

Reference numeral 33 denotes a priming water supply port, and 34 denotes a water supply solenoid valve 3.
A part of the tap water discharged from the bath water suction pump 26
This is a priming hose supplied as priming water.

Next, a description will be given of an embodiment of the present invention with reference to FIGS.

FIGS. 3 and 4 show the structure of a conventional bath water suction hose. The joint 28 for connecting the main body has a concave portion 28b in which an adhesive or a filler can be stored and a convex portion 28a for providing airtightness and mounting strength between the water absorbing hose 27 and the joint 28, and applying an adhesive or a filler to the joint 28. The water absorbing hose 27 is connected and attached to the above.

The concavo-convex shape of the joint has a single arc shape (bamboo shoot shape) or a continuous arc shape (screw shape).

As a method for connecting the joint 28 and the water-absorbing hose 27, a sealing tape 28c is wound around the uneven portion of the joint, and an adhesive or a filler is applied to the outer periphery thereof to improve airtightness.

FIG. 5 shows a configuration of a bath water suction hose of the present invention. The main body connection joint 35 has a concave portion 35b in which an adhesive or a filler can be stored, and a convex portion 35a for providing airtightness and mounting strength between the water absorbing hose 27 and the joint 35. The water-absorbing hose 27 is connected with or without application.

The uneven shape of the joint is a single arc shape (bamboo shoot shape) or a continuous arc shape (screw shape).

A hose band 36 made of synthetic resin is inserted around the outer periphery of the water-absorbing hose connection. The insertion method is such that the hose connection end face portion 35c of the joint has one or more concave portions 35d, and the one or more convex portions 36a of the hose band are aligned with the concave portions 35d. And the water absorption hose 27 are ultrasonically welded.

The hose band 36 has one or more convex portions 36b inside, and the convex portions are melted by ultrasonic waves.
It is welded and fixed to the outer periphery of the water absorption hose 27. This convex portion 36
The length b is longer than the pitch L of the hard plastic on the outer peripheral portion of the water absorption hose 27 and has a length of at least 2L.

The hose band 36 has a convex portion 36c in the longitudinal direction of the hose band. The convex portion 36c is melted by ultrasonic waves and is fixed to one side of the hose band 36 by welding.

FIG. 6 shows the hose band 36 as a single piece. Reference numeral 36a denotes a shape for positioning and stopping the recess 35d of the joint 35.

Reference numeral 36b denotes a convex shape for welding to the outer peripheral portion of the water absorbing hose 27. The length of the convex portion 36b is longer than the pitch L of the hard plastic on the outer peripheral portion of the water absorption hose 27, and has a length of at least 2L.

Reference numeral 36c denotes a shape for closing the hose band 36 in an arc shape and welding one side of the hose band. Reference numeral 36d denotes a shape for preventing the protruding portion of the weld from being welded into this portion after the welding convex portion 36c is welded and not to jump out to the surface of the hose band.

[0035]

According to the present invention, a hose band having a circular cross section from the outer periphery can be attached to the joint between the joint mounted on the bath water suction pump and the water absorption hose, so that the mounting strength can be increased.

[Brief description of the drawings]

FIG. 1 is an explanatory view of the overall internal structure of a fully automatic washing machine.

FIG. 2 is a plan view showing the internal structure of the vehicle with a back panel removed.

FIG. 3 is a structural view of a conventional bath water suction hose.

FIG. 4 is a structural view of a conventional bath water suction hose.

FIG. 5 is a structural view of a bath water suction hose of the present invention.

FIG. 6 is a diagram of a single hose band according to the present invention.

[Explanation of symbols]

1 top cover, 8 washing tub (washing and dewatering tub), 26
... bath water suction pump, 27 ... bath water suction hose, 28 ...
Body connection joint, 36 ... Hose band.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tamotsu Kamori 1-1-1, Higashitagacho, Hitachi City, Ibaraki Pref. JP, A) JP-A-57-9388 (JP, A) JP-A-3-98393 (JP, U) JP-A-3-114692 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) D06F 1/00-51/02 F16L 33/00-33/26

Claims (1)

(57) [Claims] [Claim 1 further comprising a water supply electromagnetic valve及beauty wind Lu water absorption water pump in the washing machine back panel provided on the upper rear of the body, the bath water absorption water pump, tap water discharged from the water supply electromagnetic valve Is used as a priming water, and has a bath water suction port for absorbing the bath water, a detachable joint is attached to the bath water suction port, and the outer periphery of the joint has an uneven shape.
No water hose water bath water is connected to the connecting portion of the water hose and the fitting, before the mounting in the circumferential direction both
Hose bun made of synthetic resin with an open end and an arc-shaped cross section
Is attached from the outer circumference of the water-absorbing hose.
A washing machine characterized in that a welding machine and the water-absorbing hose are welded by ultrasonic waves .