JP3237568B2 - Washing machine with bath water suction pump - 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 hose for improving connection reliability between a water suction hose and a joint.

[0002]

2. Description of the Related Art Conventionally, a water-absorbing hose made of synthetic resin such as PVC and a joint made of plastic or the like maintain the air-tightness of a connection portion of the water-absorbing hose 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 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 28 and the water-absorbing hose 27, a sealing tape 28c is wound around the uneven portion of the joint, and an adhesive or filler is further applied to the outer periphery thereof. To improve airtightness.

The joint 28 has a concavo-convex shape having a single arc shape (bamboo shoot shape) or a continuous arc shape (screw shape).
Is provided.

[0006]

When the joint is provided with an adhesive reservoir to fix the water-absorbing hose in this way,
When an excessive force is applied to the water-absorbing hose clockwise or counterclockwise, the water-absorbing hose may be turned and may not be able to maintain airtightness.

In addition to this, the hose connection outer diameter of the joint is required to be about 15% or more in order to maintain the airtightness by the adhesive, so that the hose mounting workability is poor, and the adhesive is not used. There is a problem that it protrudes and impairs the appearance.

An object of the present invention is to attach a synthetic resin hose band to a joint of a water-absorbing hose in order to maintain the airtightness of the joint and the water-absorbing hose, and to mechanically hold the hose band to increase the mounting strength. .

[0009]

SUMMARY OF THE INVENTION The present invention provides a water supply solenoid valve and a bath in a back panel provided at an upper rear portion of a main body of a washing machine.
A water suction pump, wherein the bath water suction pump is
Use part of tap water discharged from water solenoid valve as priming water
Equipped with a bath water suction port for absorbing the bath water.
The bath water inlet is equipped with a detachable joint,
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
Has a circular cross section with both ends open in the circumferential direction.
Absorbs a synthetic resin hose band having a convex
Attached from the hose outer periphery, the convex part of the water absorption hose
It is characterized by being ultrasonically welded to the outer periphery .

[0010] According to the present invention, the airtightness of the joint and the water-absorbing hose.
Can be maintained, and its mounting strength can be increased.

[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 the washing machine, 2 is a controller for controlling the operation of the washing machine, and the controller 2 is built in the front of the top cover 1 and includes a microcomputer or the like having a timer function.

Reference numeral 3 denotes a membrane switch for allowing 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,
Through the driven pulley 18 and the clutch / deceleration unit 19, the washing blade 8 is driven during washing and rinsing, and the washing tub 8 and the stirring blade 14 are driven together during dehydration.

Reference numeral 20 denotes a leg for supporting the outer frame 21, and reference numeral 22 denotes a drain hole provided in the bottom of the outer tub 9. Downstream of the drain hole 22, a drain solenoid valve 23 which opens and closes in response 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 built.

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, and its connection end is detachably attached to a bath water absorption port 26 a provided on the upper surface of the pump 26 via a joint (attachment part) 28.

FIG. 2 is a view showing the internal configuration of the back panel 25 with the back panel 25 removed. FIG. 2A shows 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 is used in common.

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. A concave portion 28b in which an adhesive or a filler can be stored in the joint (mounting part) 28 and a convex part 2 for providing airtightness and mounting strength between the water absorbing hose 27 and the joint (mounting part) 28.
8a, and a water-absorbing hose 27 is connected and attached to a joint (attachment part) 28 coated with an adhesive or a filler.

The concavo-convex shape of the joint (mounting part) may be a single arc shape (bamboo shoot shape) or a continuous arc shape (screw shape).
Etc.

As a method of connecting the joint (attachment part) 28 and the water-absorbing hose 27, a structure in which a sealing tape 28c is wound around the uneven portion of the joint and an adhesive or filler is applied to the outer periphery thereof to improve airtightness. It is.

FIG. 5 shows a configuration of a bath water suction hose of the present invention. A concave portion 35b in which an adhesive or a filler can be stored in the joint (mounting part) 35, and a convex part 35 for applying airtightness and mounting strength between the water absorbing hose 27 and the joint (mounting part) 35.
a with or without an adhesive or filler applied to the joint (mounting part) 35.
Connect.

The concavo-convex shape of the joint (attachment part) may be a single arc shape (bamboo shoot shape) or a continuous arc shape (screw shape).
It is.

A hose band 36 made of synthetic resin is fitted around the outer periphery of the water-absorbing hose connection. In the insertion method, one or more concave portions 35d are provided in the hose connection end surface 35c of the joint (attachment part), and one or more convex portions 36a of the hose band are aligned with the concave portions 35d. ,
The hose band 36 and the water absorption hose 27 are ultrasonically welded.

One or more convex portions 36b are provided inside the hose band 36, and these 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 absorption 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 welding from being welded into this portion after the welding convex portion 36c is welded and not protruding to the surface of the hose band.

[0033]

According to the present invention, the airtightness of the joint and the water-absorbing hose
Can be maintained, and its 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 absorption hose, 27… bath water absorption hose, 28…
Joint, 36 ... Hose band.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tamotsu Kamori 1-1-1 Higashitaga-cho, Hitachi City, Ibaraki Pref. Hitachi, Ltd. Electrical Equipment Division, Taga Headquarters (56) References JP-A-3-128095 ( JP, A) JP-A-58-200884 (JP, A) JP-A-9-77584 (JP, A) JP-A-60-24260 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) D06F 39/08 301 D06F 39/08 321 F16L 11/11

Claims (1)

(57) [Claims] 1. A back panel provided at an upper rear portion of a washing machine main body.
A water supply solenoid valve and a bath water suction pump inside the
The bath water suction pump is provided with the tap water discharged from the water supply solenoid valve.
Use part of the water as priming water and absorb the bath water
Bath water inlet, and the bath water inlet
A detachable joint is attached, and the joint has an irregular
The water-absorbing hose that absorbs the bath water is connected to the
And the connection part of the water-absorbing hose, both ends open in the circumferential direction
Made of synthetic resin with an arc-shaped cross section and a convex in the longitudinal direction
Attach the hose band of
Ultrasonic welding of the convex portion to the outer peripheral portion of the water absorbing hose
A washing machine characterized by the following .