JPH036310Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a clothes dryer, particularly to a filter cover mounting structure.

[Conventional technology]

First, the general structure of a clothes dryer will be explained with reference to FIG. 10. 1 is an outer box that has a door 2 in the center of the front for entering and exiting clothes to be dried, and inside this outer box 1, a large number of exhaust holes 3 are formed on the back. Place the drum 4 on the drum receiver 5.
It is rotatably supported by a drum bearing 6 and a drum bearing 6.
This drum 4 is connected to a motor 8 via a belt 7. In the figure, 9 is an idler pulley for applying appropriate tension to the belt 7 by a spring 10, and 14 is a felt for sealing.

Then, an intake filter 1 is installed at the lower front of the outer box 1.
An air intake port 11 to which a 0 was attached was formed, a feed cylinder 13 having a heater 12 disposed inside the air intake port 11 was provided, and the feed cylinder 13 was communicated with the drum 4.

An exhaust pipe 15 having an exhaust port 21 at the upper part is formed behind the drum 4, and a fan 17 connected to the motor 8 via a fan belt 16 is disposed within the exhaust pipe 15. In the figure, 18 is a fan shaft, 19 is a fan bearing, and 20 is a sealing felt.

In this way, the filter cover 41 that holds the filter 22 is detachably attached to the back inside the drum 4, but the conventional attachment means for the filter cover 41 is on the filter cover 41 side as shown in FIGS. 8 and 9. At the center of its back side, there is an elastic piece 42b divided by a slit 42a as a mounting part.
A split cylindrical body 42 is formed in a protruding manner, and a tightening ring 43 having elasticity is attached to the outer periphery of this split cylindrical body 42.
On the other hand, a cylindrical body 44 slightly larger than the inner diameter of the divided cylindrical body 42 of the filter cover 41 is provided on the drum 4 side as a filter cover holding portion protruding toward the inside thereof. A groove 44a is formed along the circumferential direction on the outer circumferential surface of.

To attach the filter cover 41 with the filter 22 attached to the drum 4, push the divided cylindrical body 42 on the side of the filter cover 41 into the cylindrical body 44 on the side of the drum 4, and the cylindrical body 44 is attached to the elastic piece 4.
2b and the tightening ring 43 are inserted into the divided cylindrical body 42 while being pushed outward. When the groove 44a provided in the cylindrical body 44 reaches the position of the tightening ring 43, the tightening ring 43 tightens the divided cylindrical body 42 in the direction of the groove 44a. divided cylindrical body 42
The inner diameter of the filter cover 41 is reduced, and the filter cover 41 is attached to the drum 4 by being tightened and fixed to the cylindrical body 44a.
To remove the filter cover 41 from the drum 4, contrary to the above, pull the filter cover 41 toward you and pull out the divided cylindrical body 42 from the cylindrical body 44 on the drum 4 side.

[Problem that the invention attempts to solve]

In this way, conventionally, the filter cover 41 is fixed to the drum 4 by the tightening force of the tightening ring 43, but this tightening force can cause the filter cover 41 to loosen during operation due to vibrations caused by the rotation of the drum 4 and other factors. In order to prevent it from coming off the drum 4, it is required to be quite large.

Therefore, the filter cover 41 must be attached and detached against this large tightening force, and a considerable amount of force is required to insert or pull out the divided cylindrical body 42 from the cylindrical body 44, which often makes it difficult to attach and detach the filter cover 41. .

In particular, when attaching the filter cover 41, the split cylindrical body 42 may not be fully inserted into the cylindrical body 44, resulting in insufficient insertion, or when the clothes dryer is set with a washing machine and placed on a stand for home laundry. If the filter cover 41 is not easily removed when the clothes dryer is placed in the dryer, pulling the filter cover 41 toward you may cause the clothes dryer to fall over, which is dangerous.

The purpose of the present invention is to eliminate the disadvantages of the conventional example,
To provide a clothes dryer in which a filter cover can be reliably and easily attached and detached with a slight force, and in particular, the danger of the device falling over during detachment can be prevented.

[Means for solving problems]

In order to achieve the above object, the present invention forms a square cylindrical body in which a square hole serving as an engagement recess is formed in a flat part in the circumferential direction at either the center of the rotating drum or the center of the filter cover, The main feature is that the elastic piece has a split structure with an elastic piece having a slit on the other side, and a cylinder body that fits with the square cylinder body is formed, and a wedge-shaped projection serving as a locking projection is formed on the outer surface of the elastic piece. It is something to do.

[Effect]

According to the present invention, a cylinder having a split structure formed of elastic pieces through slits is inserted into a rectangular cylinder in which an engagement recess is formed in the circumferential direction while narrowing, and a locking convex formed on the outer surface of the elastic piece The filter cover is fixed to the rotating drum by fitting the filter cover into the engagement recess. In addition, when the rectangular cylinder is turned to the left or right, the elastic piece is pushed inward and the locking protrusion formed here is removed from the engagement recess, and in this state, the rectangular cylinder can be divided into two parts. The filter cover can be removed from the drum by pulling it out from the cylinder body.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a longitudinal side view showing the filter cover attachment part, which is the main part of the clothes dryer of the present invention.The overall structure of the clothes dryer of the present invention is the same as that already explained with reference to FIG. A detailed explanation will be omitted.

The filter cover 23 according to the present invention also has at least two finger holes 23a near the center as in the conventional case.
A large number of ventilation holes 23b are drilled over almost the entire surface of the drum, and a filter 22 is installed on the back surface.As shown in FIG. The cylindrical body 24 is provided in a protruding manner, and square holes 25 serving as engagement recesses are formed in the circumferential direction on each flat surface portion 24a of the square cylindrical body 24.

In addition, the filter cover 2 is provided on the drum 4 side.
A cylindrical body 26 that fits into the rectangular cylindrical body 24 is provided as a holding portion of 3 in a protruding manner. As shown in FIG. 3, this cylindrical body 26 has a rectangular shape that is almost the same as the rectangular cylindrical body 24 as a whole, and has a divided structure in which a plurality of elastic pieces 28 are formed by slits 27 provided at each corner. A protrusion 29 serving as a locking protrusion is formed at the tip of the outer surface of each elastic piece 28. The projection 29 has a wedge shape that extends in the vertical direction and slopes downward toward the tip.

To attach the filter cover to the drum in this way, first, as shown in FIG. By aligning the elastic pieces 28 and pushing the cylinder 26 into the rectangular cylinder 24 from the tip, the protrusion 29 will align with the flat part 2.
Pushed inward by the inner surface of 4a, each elastic piece 28 is inserted into the rectangular cylinder 24 while narrowing inward. At this time, since the protrusion 29 is formed into a wedge shape, the pressure from the rectangular cylinder 24 is smoothly transmitted to the cylinder 26, and the cylinder 26 can be inserted easily.

When the cylindrical body 26 is further pushed in and the protrusion 29 comes to the position of the square hole 25 as shown in FIG.
9 fits into the square hole 25. In this state, the rectangular cylinder 24 is fitted into the cylinder 26, and the filter cover 23
are fixed to the drum 4, and since the rectangular cylindrical bodies fit each other during operation, there is no risk of the connection loosening even if vibrations due to the rotation of the drum 4 are applied.

Next, to remove the filter cover 23 from the drum 4, turn the filter cover 23 to the left or right from the fitted state shown in FIG. Push it inward against the elastic force and turn it to the left or right. As a result, as shown in FIG. 7, the protrusion 29 is removed from the rectangular hole 25 and is housed within the corner of the rectangular cylinder 24, thereby releasing the fitting between the rectangular cylinder 24 and the cylinder 26.

If the filter cover 23 is pulled forward in this state, the rectangular cylinder body 24 will smoothly come off from the cylinder body 26, and the filter cover 23 will come off from the drum 4. As described above, the filter cover 23 can be installed with just a slight force of pushing it backwards, and once it is installed, it will not come off easily due to the mutual fitting of the rectangular cylinders, and when it is removed, it will not come off easily. , it can be easily removed by turning it in either the left or right direction.

In the above embodiment, the square cylinder body 24 having the engaging recess on the side of the filter cover 23 is attached to the drum 4.
Although the tubular body 26 has a divided structure made of elastic pieces having a locking protrusion on the side, the structure is not limited to this, and on the contrary, a cylinder having a locking protrusion on the filter cover 23 side may be used. The body 26 may be formed into a rectangular cylindrical body 24 having an engaging recess on the drum 4 side.

[Effect of idea]

As described above, the clothes dryer of the present invention allows the filter cover to be attached and detached easily and reliably with a small amount of force, and is particularly suitable for use when the filter cover is installed in a set with a washing machine for home laundry and placed above the stand. By pulling the filter cover toward you when removing it, you can prevent the device from falling over.

Furthermore, once the filter cover is installed, it is safe and does not come off easily even when subjected to vibrations caused by drum rotation.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional side view of the filter cover attachment part which is the main part of the clothes dryer of the present invention, Fig. 2 is a perspective view of the square cylinder of the main part, Fig. 3 is a perspective view of the above cylinder, Fig. 4 is a longitudinal side view showing the inserted state of the cylinder, Fig. 5 is a longitudinal side view showing the fitted state of the above, Fig. 6 is a longitudinal front view of the above, and Fig. 7 is a longitudinal front view showing the removed state of the above. , FIG. 8 is a longitudinal sectional side view showing a conventional example of a filter cover attachment part, FIG. 9 is an exploded perspective view of the essential parts of the same, and FIG. 10 is a longitudinal sectional side view showing a conventional example of a clothes dryer. 1...Outer box, 2...Door, 3...Exhaust hole, 4...
Drum, 5...Drum support, 6...Drum bearing, 7...Belt, 8...Motor, 9...Idler pulley, 10...Spring, 11...Air intake port, 12...Heater, 13... Sending cylinder,
14...Felt, 15...Exhaust pipe, 16...Fan belt, 17...Fan, 18...Fan shaft, 19...Fan bearing, 20...Felt, 2
1...Exhaust port, 22...Filter, 23...Filter cover, 23a...Finger hole, 23b...
Ventilation hole, 24... Square cylinder body, 24a... Plane part,
25... Square hole, 26... Cylindrical body, 27... Slit, 28... Elastic piece, 29... Protrusion, 41... Filter cover, 42... Divided cylindrical body, 42a...
...Slit, 42b...Elastic piece, 43...Tightening ring, 44...Cylindrical body, 44a...Groove.

Claims (1)

[Scope of utility model registration request] A square cylindrical body is formed in either the center of the rotating drum or the center of the filter cover, with a square hole formed in a flat surface in the circumferential direction to serve as an engagement recess, and the other is divided into two by an elastic piece with a slit inserted. A clothes dryer, characterized in that a cylindrical body is formed to fit with the rectangular cylindrical body, and a wedge-shaped projection serving as a locking projection is formed on the outer surface of the elastic piece.