JP2776817B2 - Washing machine lint filter - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lint filter for a washing machine, and more particularly, to a mounting structure of a windsock type lint filter having a good lint collecting effect and being easily detachable. [Conventional technology] A windsock-type lint filter attached to a conventional washing tub is hardly elastically deformed. The mounting legs are pressed into the washing tub and fixed, and the swinging rotation by the water flow is performed around a plastic hinge as a rotation center. Had become. However, once installed, the detachability is not good, and when the net is flowing in the opposite direction to the water flow, the lint collecting effect is not good, and the plastic hinge is broken, and the handling and yarn handling are poor. Consideration was not given to debris collection performance and reliability. There is also a method of collecting lint by pumping up. However, there is a problem that lint is clogged in a pipe line such as a blow-in port and a discharge port of the pump. [Problems to be Solved by the Invention] The above-mentioned prior art has a problem that the attachment legs are hardly elastically deformed, so the detachability is poor, and when the net is blown in the same direction as the water flow, lint collection is performed. There is an effect, but when the net is facing in the opposite direction to the water flow, the trapping effect is small, and the swinging rotation by the plastic hinge,
There was a drawback that a cyclic load of forward and reverse rotation was applied to the plastic hinge, causing cracks and breakage. On the other hand, the conventional technology of the pump-up method is disadvantageous in terms of cost because lint is easily clogged in a pipe line and there are many component parts. It is an object of the present invention to have good detachability, and to make a lint collecting effect occur for both forward and reverse water flows. An object of the present invention is to provide a highly reliable lint removing filter for a washing machine, which is free from breakage or the like by adopting the filter. [Means for Solving the Problems] In a lint removing filter of a washing machine having an annular frame and a bag-like net attached to the frame,
The frame is formed in a track shape, a base boss having a rotary shaft for a base fitted in a bearing hole of a washing tub at one end in a longitudinal direction of the frame, and an arm boss having a support arm at the other end. The support arm is formed in a U-shape, and a detachable rotation shaft that fits into a bearing hole of the washing tub is formed outward on the outer end side of the support arm, and a detachable rotation shaft and a base rotation shaft are formed. It is characterized by being arranged to be placed on the same axis. [Operation] The lint removal filter is slidable about the rotation axis as a center of rotation, and during normal rotation, lint is collected in the net from the front side of the lint removal filter frame in accordance with the rotation direction of the water flow, At the time of reverse rotation, lint that has entered the recess of the rinse filter enters the net from the back side of the frame of the lint filter and is collected. Therefore, since the rotating shaft swings and rotates naturally due to the water flow, a repetitive load unlike a conventional plastic hinge is not applied, and there is no possibility of breakage and the rotating shaft can be made highly reliable. Further, since a U-shaped supporting arm which is easily elastically deformed is formed between the upper rotating shaft and the frame, the lint removing filter can be easily attached and detached. [Embodiment] One embodiment of the present invention will be described below with reference to FIGS. In FIG. 1, a pulsator 4 provided at the bottom of a washing tub 1 is used for washing and washing by rotation of a washing motor (not shown).
Perform a rinse. The drain filter 2 is mounted on the bottom right corner of the washing tub 1 and the rinsing filter 3 is mounted on the tub wall on the right back of the washing tub 1. The drain filter 2 is connected to the washing tub 1 so that lint and foreign matter do not enter the piping. It serves as a filter to partition the piping. On the other hand, the operation panel 6 is provided with operation knobs. The dewatering tank 7 performs dehydration by centrifugal force. A lint filter 5 is provided below the rinse filter 3. In FIG. 2, a specific attachment state of the lint filter 5 will be described. A bag-shaped nylon net 9 is fixed to the lint filter 5 by a track-shaped ring-shaped frame 6 sandwiched between frames A11 and B12 as shown in the sectional view of FIG. Have been. Further, in frame 6, the fourth
As shown in Fig. 5 and Fig. 5, a base boss 6 'having a rotating shaft 10' for the base and an arm boss 6 "having a support arm 13 are integrally formed. The support arm 13 is formed in a U-shape. At the outer end, an attaching / detaching rotating shaft 10 is formed facing upward, and the attaching / detaching rotating shaft 10 and the base shaft rotating shaft 10 'are arranged so as to be located on the same axis. The base rotary shaft 10 'fits into the bearing holes 14, 14' of the washing tub, and can be slid and rotated along the flow of the pulsator as shown in Fig. 4. A specific description will be given of the principle that lint is collected by the nylon nut with reference to Fig. 4. First, when the water flow is normal rotation in the direction A, the ring-shaped frame 6 is formed.
Since the frame 6 is open to the water flow in a state in which the strength of the water flow is balanced, the lint that has passed through the frame 6 is reliably collected in the nylon net 9. When the water flow is reversed in the direction B, the water flow is
, And passes through the frame 6 and is collected by the nylon net 9. Also, the lint filter 5 is replaced with the rinse filter 3
As shown in FIG. 3, when removing the rotating shaft 10 and the bearing hole, the user grips the frame 6 or puts a finger on the supporting arm 13 to deform the supporting arm 13 downward. The engagement of 14 is easy to remove and easy to clean. Next, in FIG. 7, the lint collecting performance was compared with that of a conventional pump.
As shown in comparison with the up system, the pump up system has a problem that lint is easily clogged in a pipe line, and also has a poor collecting performance in spite of a complicated component configuration. Therefore, according to the present invention, lint is reliably collected in both the forward and reverse directions of the pulsator,
Since the plastic hinge is not used, there is no risk of breakage, and a detachable filter utilizing the elastic deformation of the hook can provide a lint-removing filter with good handleability. The ring-shaped frame 6 and the rinsing filter 3 are made of a synthetic resin of polypropylene (PP). The fitting holes 14, 14 'for fitting the rotating shafts 10, 10' of the ring-shaped frame 6 are formed without using a slide hook mold. That is, as shown in FIG. 5, the fitting holes 14, 14 '
It is formed so that it can also escape to the left. At least the part that escapes in the left direction is the concave part 8 of the rinse filter 3.
Only the wall thickness is necessary. For this reason, when the rinse filter 3 is viewed from the left side, the bearing holes 14, 14 '
4 'has a wall on the left and right, so frame 6
It is easy to insert the removable rotary shaft 10 and the base rotary shaft 10 '. In addition, since the overflow hole is not provided in the concave portion 8, when the blindness is increased, the lint can enter the nylon net 9 even more. [Effect of the Invention] The present invention relates to a lint removing filter for a washing machine having an annular frame and a bag-like net attached to the frame, wherein the frame is formed in a track shape, At one end in the direction, a base boss having a rotation shaft for the base fitted in the bearing hole of the washing tub, and at the other end an arm boss having a support arm are provided, and the support arm is formed in a U-shape. At the outer end of the support arm, a detachable rotating shaft that fits into the bearing hole of the washing tub is formed outward, and the detachable rotating shaft and the base rotating shaft are arranged so as to be placed on the same axis. In the lint filter of the washing machine. According to this configuration, since the lint removing filter has the rotating shaft for attachment and detachment and the rotating shaft for the base shaft fitted in the bearing hole, it moves so as to blow in the same direction as the washing water flow, so that lint can be removed well. Further, since the frame has a track shape and the U-shaped support arm is provided with a detachable rotary shaft, the detachable rotary shaft can be easily attached to and detached from the bearing hole, and the lint filter can be easily attached and detached.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of the present invention used in a two-tub washing machine, FIG. 2 is a partially enlarged perspective view of FIG. 1, and FIG. 4th perspective view showing how to remove the dust filter,
FIG. 5 is a cross-sectional view illustrating the operation principle of the present invention, FIG. 5 is a partial vertical cross-sectional view, and FIG. 6 is a cross-sectional view taken along line II of FIG. FIG. 7 is a graph showing the lint collecting performance of the present invention and the conventional system. 3 ... Rinse filter, 5 ... Lint filter, 8 ... Recess, 10 ... Rotating shaft for attachment / detachment, 14 ... Bearing hole.

Claims (1)

(57) [Claims] In a lint filter for a washing machine having an annular frame and a bag-like net attached to the frame, the frame is formed in a track shape, and one end of the frame in the longitudinal direction has a washing tub. A base boss having a rotation shaft for the base fitted in the bearing hole, an arm boss having a support arm on the other end side are provided, the support arm is formed in a U-shape, and a washing is provided on the outer end side of the support arm. A lint removing filter for a washing machine, wherein a detachable rotary shaft that fits into a bearing hole of a tub is formed outward, and the removable rotary shaft and the base rotary shaft are arranged so as to be placed on the same axis.