JPH07275591A - Clothes drying machine - Google Patents

Abstract

PURPOSE:To provide a clothes drying machine which can enhance the efficiency in the warm wind supplying operation to the clothes and also can enhance the easiness in the filter handling works, for example mounting and removal of the filter for cleaning, wherein the filter is to capture the thread lint dust, etc., generated from the clothes. CONSTITUTION:A clothes drying machine is structured so that a filter 16 for capturing thread lint, dust, etc., is installed upstream of a warm wind exhaust hole 3-2 of a rotary drum 3 in which clothes are accommodated, wherein the filter 16 is mounted removably on the inside of the drum 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clothes dryer for supplying warm air into a rotating drum to dry clothes, and more particularly to the efficiency of supplying warm air to clothes. The present invention relates to a clothes dryer capable of simultaneously improving the filter handling property when cleaning a dust collecting filter that collects dust such as thread waste generated from clothes.

[0002]

2. Description of the Related Art In a conventional clothes dryer, an exhaust port for exhausting warm air inside the drum is generally provided on an end surface of a cylindrical drum for accommodating clothes, and immediately before that, the clothes in the drum are generated. A dust collecting filter for collecting dust such as lint is installed.

In many cases, the warm air exhaust port is provided on the rear end face of the drum, and is located immediately before the warm air exhaust port and substantially in the center of the drum rotation shaft center. It is usual to install a filter for collecting dust.

Many prior arts relating to this type of clothes dryer are disclosed in Japanese Utility Model Laid-Open No. 4-108097 and others.

Recently, with the increase in laundry,
Although the clothes dryer tends to have a large capacity, according to the above-mentioned conventional clothes dryer, in order to increase the capacity of the clothes dryer with an increase in laundry, the volume of the drum for storing clothes is increased. In consideration of the installability of the dryer main body, the depth dimension of the drum is usually increased.

In such a case, however, the filter for collecting dust such as lint disposed on the rear end surface of the drum is further separated from the clothes inlet / outlet port of the drum, and the filter is attached / detached when cleaning the filter. Not only is the work troublesome, but if the maintenance of the dust collection filter is neglected, the drying efficiency will be reduced and the reliability of the device will be reduced.

On the other hand, in Japanese Utility Model Publication No. 45-16301, a ventilation hole is provided in a lifter for promoting the agitation of clothes in order to promote the agitation of clothes in the drum, and an exhaust port for exhausting warm air in the drum. Then, a clothes dryer having a structure in which a filter for collecting dust such as thread waste is installed in the middle of the ventilation duct outside the drum with the inside of the lifter as an air passage is shown.

However, according to this structure, since the dust collecting filter is provided in the middle of the drum outside ventilation duct, if the clothes dryer is repeatedly operated, a large number of dust collecting filters are provided on the clothes agitating lifter. It is quite conceivable that the ventilation holes are clogged with dust such as lint, leading to a decrease in drying efficiency. This is particularly noticeable when regular maintenance is neglected.

On the other hand, in the above construction, since the filter for collecting dust such as thread waste is provided in the middle of the drum outer ventilation duct, the operator can visually check the clogging of the filter. It is not possible to do this, and even if the filter is significantly clogged with lint or the like, it is fully possible to unconsciously neglect its maintenance.In such a case, before the ventilation hole of the lifter is clogged, this passage should be avoided. Dust such as thread waste that has passed through the pores is buried between the dust collection filter provided in the middle of the drum outside ventilation duct and the ventilation hole of the lifter on the downstream side of the ventilation hole. It is fully conceivable that this will lead to a decrease in drying efficiency.

Further, according to the above construction, since the dust collecting filter is provided in the middle of the drum outer ventilation duct, the filter mounting and removing work for cleaning the filter is performed in the middle of the drum outer ventilation duct. In order to fabricate a clothes dryer, the filter should be installed in the drum. It requires extra steps compared to the case.

[0011]

SUMMARY OF THE INVENTION An object of the present invention is to solve all of the inconveniences and drawbacks of the above-mentioned prior art, to improve the efficiency of supplying warm air to clothes, and to remove dust such as lint generated from clothes. It is an object of the present invention to provide an improved clothes dryer capable of simultaneously improving filter handleability such as filter attachment and detachment when cleaning a dust collection filter to be collected.

[0012]

The object of the present invention is to install a dust collecting filter for collecting dust such as thread waste on the upstream side of a warm air exhaust port of a drum for storing and rotating clothes. In a clothes dryer, this is achieved by detachably attaching a dust collecting filter inside the drum body.

[0013]

With the above construction, when the drum itself for stirring clothes rotates, the dust collecting filter detachably attached to the inside of the drum body also rotates.

That is, the first warm air exhaust port portion of the drum rotates as the drum rotates.

Therefore, the air heated by the heating element becomes warm air, and its flow path has a substantially "pestle-like" shape centered on the hot air outlet, and is used for clothes stirred in the drum. In addition to applying warm air evenly, dust such as thread waste generated from clothes in the drum is collected by the dust collecting filter 16 provided in the drum and does not enter the air passage thereafter. Therefore, as in the clothes dryer described in Japanese Utility Model Publication No. 45-16301, the problem that dust passing through the ventilation holes of the clothes agitation promoting lifter is buried in the outside of the drum ventilation duct can be eliminated.

In addition to this, the filter for collecting dust is
Since it is detachably installed inside the drum body, in order to increase the capacity of the clothes dryer with the increase in laundry, even if the depth dimension of the drum is enlarged, a filter is attached to the rear end surface of the drum. If the filter is getting farther away from the clothes inlet / outlet of the drum as in the case of installation, not only is the filter installation / removal work at the time of cleaning the filter troublesome, but the maintenance of the dust collection filter is neglected. Eliminates the inconvenience of causing a decrease in drying efficiency, and allows you to directly check the clogging status of the filter installed near the clothes inlet / outlet in the vicinity of this filter and clean the filter. If the filter is installed or removed, handle it as it is located close to the clothes outlet. It can be carried out very easily.

[0017]

An embodiment of the present invention will be described below with reference to the drawings.

1 and 2 show the overall internal structure of the clothes dryer, and 1 is an outer frame.

Reference numeral 4 denotes an outer frame body 1 via a motor base 4-1.
Motor 15 mounted on the drum drive pulley 4-
2, drum belt 3 which is given tension by the tension applying pulley 13, 3 is a drum that is rotated through the drum belt 15 to stir clothes, and the front side of the drum 3 is attached to the outer frame front plate 1-1. The drum support 17 is attached to the drum support 9 and the rear side of the drum 3 is attached to the drum shaft 9-1 fixed to the drum / fan support plate 9 attached to the rear of the outer frame 1 via the drum bearing 3-1. It is rotatably supported.

Reference numeral 2 denotes a door that is opened and closed when clothes are taken in and out of the drum 3, and is supported by the outer frame front plate 1-1.

Behind the warm air exhaust port 3-2 of the drum 3,
A fan casing 8 and a fan 6 housed in the fan casing 8 are installed.

The fan casing 8 is fixed to a drum / fan support plate 9, and the fan 6 is rotatably supported by a fan shaft 9-2 fixed to the drum / fan support plate 9.

The fan 6 includes a fan drive pulley (not shown) attached to the motor 4 and a fan belt 10.
It is rotated by the motor 4 via.

Further, the fan 6 has a fan casing 8
With the partition plate 7 to divide the front and back sides into a circulation side A and a cooling side B. The circulation side A circulates the air in the drum 3, and the cooling side B covers the rear surface of the outer frame body 1. Intake port (back plate intake port) 14-1 provided in the plate 14 and back plate exhaust port 1
4-2 is a so-called heat exchange type of both front and back blades that sucks and exhausts outside air.

Reference numeral 5 is a heating element for supplying warm air,
It is installed below the drum support 17 and in front of the warm air intake port (warm air outlet) 17-1 of the drum 3.

Reference numeral 16 denotes a dust collecting filter for collecting dust such as thread waste generated from the clothes in the drum 3, and as shown in FIGS. 3 and 4, the net filter 16-1 and the non-woven fabric filter 16-2. In the illustrated embodiment, the double-structured filter is held by the filter guard 16-3, and is detachably attached to the lifter 19-1 for promoting the agitation of clothes inside the drum 3 body. ing.

The lifter 19-1 for accelerating clothes agitation scrapes clothes from the lower part to the upper part in the rotating drum 3 and drops them, and by repeating this operation, warm air is uniformly applied to the entire clothes. To prevent uneven drying and improve drying efficiency.

From the lifter 19-1 for promoting clothes agitation to the hot air exhaust port 3-2, the drum inner duct 19 and the drum 3 are provided.
The inner surface of the drum 3 and the inside of the drum 3 are kept airtight, and a part of the air passage is formed by the inner surface of the drum 3 It is economical because the duct material can be saved as compared with the case where is constituted by a different duct completely independent from the drum 3.

Casing discharge port 8 of fan casing 8
-1 and the hot air intake 17-1 are connected to the drain 11-1 on the way.
Airtightness is maintained and connected by the circulation duct 11 and the front 12 of the circulation duct.

The air in the drum 3 is
Dust collection filter 16 → drum internal duct 19 → warm air exhaust port 3-2 → fan casing 8 (circulation side A) → casing discharge port 8-1 → circulation duct 11 → circulation duct front member 12 → heating element 5 → The warm air intake 17-1 is circulated through the drum 3.

Reference numeral 18 denotes a control device for controlling the operation of the motor 4, the heating element 5 and the like, which is attached to the outer frame front plate 1-1 via the panel 18-1.

The part of the partition plate 7 will be described in detail. A rib integrally formed on the outer periphery of the fan 6 has a comb-shaped cross section.
The ribs, which are provided on the partition plate 7 and have the same comb-shaped cross section, form a so-called labyrinth seal, which is engaged with the ribs in a non-contact state.

In the above structure, the motor 4 and the heating element 5
When electricity is applied to the motor 4, the motor 4 starts to rotate, the drum 3 and the fan 6 are respectively rotated, the heating element 5 generates heat, hot air is supplied into the drum 3, and the clothes stored in the drum 6 While being stirred by the lifter 19-1, it is gradually dried.

The moisture evaporated from the clothes passes through the dust collection filter 16 together with the circulating wind, the duct 19 in the drum, the hot air exhaust port 3-2, and the circulation side A of the fan casing 8. To do.

Further, outside air flows into the cooling side B of the fan casing 8 through the back plate intake port 14-1 and the back plate exhaust port 14-
It is exhausted from 2.

At the outer peripheral portion of the fan 6, the labyrinth seal portion with the partition plate 7 divides the circulating air and the cooling air without going in and out. Therefore, in the front and back of the fan 6, the circulation side of the fan casing 8 is provided. Heat is exchanged between A and the cooling side B, the moisture contained in the circulating air is condensed,
It becomes water and the casing outlet 8 of the fan casing 8
From 1 to the circulation duct 11, it is discharged from the drainage port 11-1 to the outside of the machine, and thus a series of drying operation of the clothes dryer is continued.

In this series of drying steps, when the drum 3 itself for stirring clothes rotates, the dust collecting filter 16 detachably attached to the inside of the body of the drum 3 also rotates.

That is, the first warm air exhaust port portion of the drum 3 rotates as the drum 3 rotates.

Therefore, the air heated by the heating element 5 becomes warm air, and its flow path has a substantially "pestle" shape centered on the warm air outlet 17-1. In addition to changing the direction as indicated by the solid line arrow 2 and applying warm air evenly to the clothes stirred in the drum 3, the drying efficiency per unit time can be improved, and the thread waste generated from the clothes in the drum 3 The dust and the like are collected by the dust collecting filter 16 before they flow into the in-drum duct 19 and do not enter the air passage thereafter, and therefore, the above-mentioned Jitsukoshi Sho-45-.
As in the clothes dryer described in Japanese Patent No. 16301, it is possible to eliminate the problem that dust that has passed through the ventilation holes of the clothes agitation promotion lifter is buried in the middle of the outside ventilation duct of the drum, leading to a decrease in drying efficiency.

In addition to this, a filter 16 for collecting dust
Since the drum is detachably provided inside the body of the drum 3, even if the depth dimension of the drum 3 is increased in order to increase the capacity of the clothes dryer with the increase of laundry, the drum 3 As in the case of installing the filter on the rear end face of the filter, the filter becomes more and more distant from the clothes loading / unloading opening of the drum, which not only complicates the work of installing and removing the filter when cleaning the filter, but also of the dust collecting filter. If maintenance is neglected, it is necessary to eliminate the problem of causing a reduction in drying efficiency and directly check the clogging state of the filter 16 provided near the clothes loading / unloading port near the filter 16. In addition, when the filter 16 is cleaned, the filter 16 can be attached and detached when the filter 16 is placed close to the clothing inlet / outlet port. Because provided, it is possible to perform the handling very easily.

In the illustrated embodiment, the dust collecting filter 16 is detachably attached to the clothes agitation promoting lifter 19-1 on the inside of the body of the drum 3, but it may be replaced by this. Then, the dust collecting filter may be detachably attached directly to the inside of the body of the drum 3.

[0042]

According to the present invention, a dust collecting filter for collecting dust such as thread waste generated from clothes is installed upstream of the warm air exhaust port of the drum that houses and rotates clothes. In a clothes dryer having a structure, a dust collecting filter is detachably attached to the inside of the drum body to improve the efficiency of supplying warm air to clothes and to filter the dust collecting filter. It is possible to simultaneously improve the filter handleability such as installation and removal, and obtain an improved clothes dryer excellent in both performance and usability.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of a clothes dryer according to the present invention.

FIG. 2 is a diagram showing a state in which a drum 3 is rotated from the state of FIG. 1 and a position of a dust collecting filter 16 is displaced.

FIG. 3 is a longitudinal sectional view showing the dust collecting filter 16 in an exploded manner.

FIG. 4 is an enlarged view of a main part of this embodiment.

[Explanation of symbols]

3 ... Drum, 3-2 ... Warm air exhaust port, 16 ... Dust collecting filter, 17-1 ... Warm air intake port, 19 ... Drum inner duct, 19-1 ... Lifter for promoting clothing stirring.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tsunetoshi Komatsu 1-1-1 Higashitaga-cho, Hitachi-shi, Ibaraki Hitachi Ltd. Living Equipment Division

Claims (4)

[Claims] 1. A warm air is supplied into a rotating drum for storing clothes to dry the clothes, and dust such as thread waste generated from the clothes is collected upstream of a hot air exhaust port of the drum. A clothes dryer having a structure for installing a dust collecting filter, wherein the dust collecting filter is detachably attached to the inside of the body of the drum. 2. The clothes dryer according to claim 1,
A clothes dryer in which a filter for collecting dust provided inside the drum body and a hot air exhaust port of the drum are connected to each other by an air passage that is kept airtight. 3. The clothes dryer according to claim 2,
A clothes dryer in which a part of an air passage connecting a dust collecting filter provided inside the drum body and a warm air exhaust port of the drum is formed by the inner surface of the drum. 4. The clothes dryer according to any one of claims 1 to 3, wherein the dust collecting filter is detachably attached to a clothes stirring promoting lifter inside the drum body. .