JPH0344148Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention relates to an improvement in the mounting structure of a hose connected to a drain port on the bottom of an outer tub of a washing machine with a dehydrating function.

Conventional Structure and Problems Conventionally, in a dehydrating and washing machine, as shown in FIG. They are respectively attached to the wall surface of the washing machine main body 1 via. This in-machine hose a was fixed with adhesive c to a joint b attached to a mounting hole in the wall of the washing machine main body. Therefore, an adhesive c and a bonding process are required, which causes high costs. Furthermore, when bonding, the adhesive may adhere to the inner wall d of the joint b, and lint may become trapped during drainage. Further, in a washing machine that also serves as a dehydrator, the outer tub vibrates during the dehydrating process, and the internal hose a is pulled by the outer tub. Therefore, if there is poor adhesion between the in-machine hose a and the joint b, the in-machine hose will come off and the water will be drained away during the draining process, potentially leaving the area where the washing machine is installed flooded with water. For this reason, sufficient care was required in adhesion.

Purpose of the invention This invention solves the above-mentioned conventional problems, and improves the reliability of the connection structure between the in-machine hose and the joint.
This eliminates the poor workability and troublesomeness of conventional adhesive methods.

Structure of the invention This invention uses the flexibility or elasticity of the connection part of the in-flight hose to attach and detach the in-flight hose and the joint, and also attaches the in-flight hose by attaching it to the joint by providing a rib on the connection part to prevent it from moving back and forth. The present invention eliminates the need for chemicals, improves workability, and confirms whether or not the connection has been made reliably at the time of insertion, which is excellent in terms of ease of assembly and cost, and has a highly reliable configuration.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described. In FIG. 2, 1 is the main body of the washing machine, 2 is an outer tank, and has a washing/drying tank 3 inside. 4 is a suspension that suspends and supports the outer tank 2. 5 is a pulsator for agitating the clothes, 6 is a motor that rotates the pulsator 5 during washing and the washing/dehydration tank 3 during dehydration, 7 is a mechanical case with a clutch mechanism and a brake mechanism inside, and 8 is an external one. Tank 2
It is a drainage pot attached to the drain outlet on the bottom of the tank. 9 is an in-flight hose, one end of which is connected to the drain hose 8
The other end is attached to the wall surface of the washing machine main body 1 via a joint 10. Note that the joint 10 is fixed to a mounting hole of the main body 1 with screws or the like. The in-machine hose 9 is made of a flexible or elastic resin material.

In addition, as shown in Figs. 3 to 5, the in-machine hose 9
The outer diameter A of the connecting portion 9a with the joint 10 is
It is slightly larger than the inner diameter B of the connecting portion 10a. The length C of the connecting portion 9a is set to be equal to or slightly smaller than the length D of the connecting portion 9b of the joint 10, and ribs are provided at both ends of the connecting portion 9a around the entire circumference. 9b, 9c are provided, and the outer diameter E of the rib 9b is the outer diameter F of the joint 10.
The outer diameter of the rib 9c is larger than the inner diameter G of the joint 10.
It is as below.

When connecting the in-machine hose 9 to the joint 10, the in-machine hose 9 is deformed, and the connecting part 10a of the joint 10 is inserted into the connecting part 9a of the in-machine hose 9. In this case, the outer diameter A of the in-machine hose 9 is
Because it is slightly larger than the inner diameter B of
In addition, the connecting portion 1 of the joint 10 is connected by the ribs 9b and 9c.
0a is inserted, and the in-machine hose 9 is connected to the joint 10.
Fixed. Further, the in-flight hose 9 is provided with a bellows part 9d on its body to make it expandable and contractible, and this bellows part 9d and the open end 1 of the joint 10
The rib 9b is provided between the rib 9b and the rib 9b.

As described above, by connecting the in-machine hose 9 and the fitting 10 to the fitting 10 by using the flexibility or elasticity of the in-machine hose 9 without bonding, problems regarding the reliability of the bonding surface are eliminated, and the bonding As the number of steps is reduced, assembly work efficiency is improved.

Furthermore, if the in-machine hose 9 and the fitting 10 are glued together as in the past, when the in-machine hose 9 is replaced, the fitting 10 screwed to the main body 1 must be removed, resulting in poor serviceability. However, as described above, if the in-machine hose 9 is detachably connected to the joint 10, there is no need to remove the joint 10, and serviceability is greatly improved. In addition, by providing the rib 9b between the bellows 9d of the in-machine hose 9 and the opening end 10b of the joint 10, vibrations during dewatering of the washing and dehydrating tank 3 are transmitted to the in-machine hose 9, and the bellows part 9d and the opening The end portion 10b is no longer directly rubbed, holes in the bellows portion 9d are eliminated, and durability is improved.

Effects of the Invention As described above, according to the present invention, the in-flight hose and the joint are removably inserted by utilizing the flexibility or elasticity of the connection part of the in-flight hose, and the tension is applied to the in-flight hose by applying force. Ribs are provided at the connection part to prevent the in-machine hose from coming off the joint even when subjected to force, eliminating the need for adhesive and the need to check the reliability of the bonded part, improving assembly work efficiency. Furthermore, the in-machine hose and fitting are removable, simplifying the replacement of the in-machine hose and improving serviceability. It also greatly improves the durability of the in-flight hose connections.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing a conventional in-machine hose and a joint, Fig. 2 is a vertical cross-sectional view of a dehydrating and washing machine, and Fig. 3 is a cross-sectional view showing a connection structure between an in-machine hose and a joint in an embodiment of the present invention. , FIG. 4 is a sectional view of the in-machine hose, and FIG. 5 is a sectional view of the joint. 1...Washing machine body, 8...Drainage pot, 9...
In-flight hose, 10...fitting.

Claims (1)

[Scope of utility model registration request] an outer tank housed in the main body of the washing machine and having a washing and dewatering tank inside; a drainage pot connected to a drain port on the bottom of the outer tank; a bellows-shaped external hose connected to the drainage pot; A cylindrical joint having a large-diameter part and a small-diameter part, the in-machine hose being provided between the machine and the drain pot, one end of the machine hose being inserted into the drain pot, and the other end being provided on the wall surface of the main body of the washing machine. A cylindrical connection part that penetrates the inner diameter part of the small diameter part and is fixed, and a plurality of ribs are arranged in a convex shape in the longitudinal direction on the outer periphery of the connection part of the in-machine hose that is fixed through this, and A dehydrating/washing machine in which the stuck connection part is configured so that both ends of the small diameter part of the joint are positioned between the ribs of the connection part of the in-machine hose to prevent it from moving back and forth by utilizing its flexibility or elasticity. .