JP3532696B2 - Clothes dryer - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum type clothes dryer.

[0002]

Conventionally, a clothes dryer is of a drum type. The drum-type clothes dryer accommodates the clothes to be dried in the drum, and rotates the drum to supply warm air to the inside of the drum to dry the clothes to be dried. .

In such a drum type clothes dryer, the clothes to be dried are agitated by the rotation of the drum. On the other hand, the drum is generally made of a metal such as a steel plate for heat resistance, and when the hard material such as buttons, fasteners, and hooks of the clothes to be dried that are agitated hits the drum, the drum is squeaked. It was likely that a strange noise was emitted. This metal drum and hard material
In order to eliminate the hitting sound,
Although a shock absorber is attached to each inside of the rear plate,
Is deformed by expansion and contraction due to heat.
The structure of the shock absorber and the metal door that can flexibly respond to the deformation of the body
There was a demand for how to attach it to the ram.

The present invention has been made in view of the above circumstances, and therefore its object is to provide a drum body and a drum rear plate.
For mounting the body cushion and the rear cushion respectively.
Lamb caulking can be easily done to ensure caulking
To provide a clothes dryer that can be done .

As means for achieving the above object, in the clothes dryer of the present invention, the clothes to be dried are accommodated and rotated.
Hot air is supplied to the inside of the metal drum that is driven to rotate,
Drums designed to dry clothes
While attaching an annular body cushion to the inner circumference of the body,
Attach a substantially disk-shaped rear shock absorber to the inner surface of the drum rear plate,
A peripheral groove is provided inside the outer peripheral portion of the rear shock absorber, and
And a gap between the rear surface of the rear cushion and the circumferential groove,
The drum cushion is attached to the drum rear plate side by the drum front plate.
By pressing, one end in the axial direction of the body cushion is loosened at the rear part.
It is characterized in that it is fitted into the circumferential groove of the impact body and pressed against it.

[0006]

[0007]

According to this means, since one end portion of the body cushioning body in the axial direction is fitted into the circumferential groove of the rear cushioning body and is in a pressure contact state , each cushioning body is heated during the drying operation. Deformation or thermal expansion
Even if heat shrinks , the rear surface of the circumferential groove of the rear cushion and the rear plate of the drum
Absorption can be accommodated by the gap, and the end of each buffer in the axial direction is held in the circumferential groove and does not come off, and the caulking of the drum can be easily performed and the caulking connection (caulking work) of the drum is surely performed. be able to. Further, even if there is the above-mentioned thermal deformation (expansion / contraction), it can be absorbed by the deformation of the rear cushioning body, especially the deformation of the peripheral groove portion thereof, and prevents the occurrence of bulges / wrinkles in other cushioning body portions. be able to.

[0009]

DETAILED DESCRIPTION OF THE INVENTION

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS.

First, FIG. 1 shows the overall structure of a clothes dryer, in which a drum 2 is arranged in an outer box 1. As shown in detail in FIGS. 2 and 4, the drum 2 has a drum body 3 formed into a cylindrical shape by forming a joint 3a by caulking both ends of a metal strip sheet such as a steel plate.
And a drum back plate 5 made of the same metal, which is crimped to the rear edge of the drum body 3 by the caulking portion 4, and a metal drum, which is also caulked to the front edge portion of the drum body 3 by the caulking portion 6. The drum front plate 7 has a circular opening 8 having a large diameter formed concentrically with the drum body 3.
A drum shaft 9 is attached to the center of the drum rear plate 5 so as to project rearward.

A drum support plate 10 is attached to a front portion of the outer case 1, and an opening 8 of a drum front plate 7 is rotatably supported on the drum support plate 10. Further, a clothing inlet / outlet 11 facing the inside of the drum 2 is formed from the central portion of the front surface of the outer box 1 to the central portion of the drum support plate 10, and a door 12 for opening / closing the clothing inlet / outlet 11 is provided on the front surface of the outer box 1. It is pivotally attached.

On the other hand, a casing 13 is provided at the rear of the outer box 1.
In the center of the casing 13, a drum shaft 9 attached to the center of the drum rear plate 5 is rotatably supported, and the fan shaft 9 is eccentric to the drum shaft 9. 14 is attached. A double-blade fan 15 is rotatably attached to the fan shaft 14 in the casing 13, and the fan 15 is attached to the outer casing 1.
A motor 16 arranged at the lower part of the inside is driven to rotate via a belt 17, and at the same time, the drum 2 is driven by the same motor
6 drives the belt 18 to rotate.

When the fan 15 is rotated, the rear wing portion 15a sucks and discharges the air outside the outer box 1, and
The air in the drum 2 warmed by a heater (not shown) is sucked and discharged by the front wing portion 15b,
As a result, the air in the drum 2 and the air in the outer box 1 are heat-exchanged and the air in the drum 2 is dehumidified.

Reference numeral 19 denotes a filter for capturing yarn waste from the suctioned air from the inside of the drum 2, which is attached to the drum shaft 9 in a non-rotatable state so as to be located at the center of the rear portion of the inside of the drum 2. By the way, a body cushioning body 20 and a rear cushioning body 21 are mounted on the inner peripheral portion of the drum body portion 3 and the inner surface portion of the drum rear plate 5, respectively. These cushioning bodies 20 and 21 are made of, for example, a band-shaped sheet made of expanded polypropylene foam having a thickness of about 2 mm as a base material, and have heat resistance and relatively sufficient rigidity.

As shown in FIGS. 3 and 4, the body cushioning member 20 is provided with, for example, two pairs of engaging portions 22 that form a joint at both longitudinal ends of the belt-shaped sheet. That is, for example, two engaging protrusions 23 are provided at one end at a distance from each other, and at the other end, the engaging recesses 2 with which the respective engaging protrusions 23 engage with each other.
4 are provided, and the engaging projections 23 and the engaging recesses 24 are engaged and integrated to form a cylindrical shape as shown in FIG. In this case, the diameter of the cylindrical body cushioning body 20 that is rolled into a cylindrical shape is set to be slightly smaller than the diameter of the drum body 3.

As shown in FIGS. 3 and 4, the rear cushioning member 21 is a disk-shaped member having a diameter slightly smaller than the diameter of the drum rear plate 5, and a peripheral groove 25 is vacuum formed inside the outer peripheral portion thereof. When the rear cushion 21 is attached to the drum rear plate 5, the peripheral groove 25
Is formed so that a gap A is formed between the rear surface protruding rearward and the rear shock absorber 5.

Thus, the drum rear plate 5 has the rear cushion 2
The diameter is slightly larger than the diameter of 1, and an outer peripheral groove 5a is formed inside the outer peripheral portion around the outer periphery of the rear cushion 21 for inserting and crimping one end of the drum body portion 3 therein. is doing.

The drum front plate 7 has substantially the same diameter as the drum rear plate 5, and the other end of the drum body 3 is fitted inside the outer peripheral portion so as to face the outer peripheral groove 5a of the drum rear plate 5. An outer peripheral groove 7a for crimping is formed and the outer peripheral groove 7a is formed.
A concave stepped portion 7b continuous in the center direction is formed in a.

When caulking the drum 2 according to this structure, the rear shock absorber 21 is first placed and mounted on the drum rear plate 5, and the drum shock absorber 3 is surrounded by the rear shock absorber 21.
The drum body 3 is set on the drum rear plate 5 by fitting one end of the drum into the outer peripheral groove 5a of the drum rear plate 5. Next, the body cushioning member 20 that is rolled into a cylindrical shape by each engaging portion 22 is placed in the drum body 3 and one end thereof is formed in the circumferential groove 2 of the rear cushioning member 21.
5, and the body cushioning body 20 is set in the rear cushioning body 21. Then, by fitting the outer peripheral groove 7a of the drum front plate 7 into the other end of the drum body portion 3, the other end of the outer peripheral groove 7a is formed.
And the concave step portion 7b of the drum front plate 7 is brought into contact with the other end of the body cushioning body 20 and is pressed to place the drum front plate 7 on the drum body portion 3 and the body portion cushioning body 20. After setting, in this state, the caulking portions 4 and 6 are caulked and joined. As a result, the drum rear plate 5, the drum body 3, the drum front plate 7, the rear cushion 21, and the body cushion 20 are integrated.

As a result, as shown in FIG. 2, the body cushioning member 20 is provided on the inner peripheral portion of the drum body portion 3 and corresponds to the peripheral groove 25 portion of the rear cushioning body 21 from the inner peripheral surface of the drum body portion 3. The rear shock absorber 21 is mounted on the inner surface of the drum rear plate 5, and the rear surface of the groove 25 is mounted on the inner surface of the drum rear plate 5 so as to have a clearance C from the inner surface of the drum rear plate 5. This gap C is smaller than the similar gap A shown in FIG. This is because, as described above, the body cushioning member 20 is pressed by the drum front plate 7 at the time of caulking, and the circumferential groove 25 of the rear cushioning member 21 is pressed toward the drum rear plate 5 side. is there.

A circular hole 26 is provided in the central portion of the rear shock absorber 21, and the peripheral portion of the circular hole 26 is provided in the filter 19.
Is pressed against the central portion of the drum rear plate 5 via the pressing body 27.

Next, the operation of the above configuration will be described. First, clothes to be dried are put into the drum 2 through the clothes inlet / outlet 11, the door 12 is closed, and the operation is started. Then, the heater (not shown) heats up, the motor 16 is activated, and the drum 2 and the fan 15 are rotationally driven, and the clothes to be dried in the drum 2 are agitated and come into contact with warm air to remove moisture and be gradually dried. It

In such an operating condition, hard objects such as buttons, fasteners, and hooks of the clothes to be dried only hit the body cushioning body 2 and the rear cushioning body 21, and may hit the drum body 3 and the drum rear plate 5. This can be avoided, and the generation of the hitting sound can be eliminated more effectively, and the clothes dryer can be comfortably used without being bothered by the hitting sound of the hard object inside the drum 2.

Next, the arrangement of the body cushioning body 20 with respect to the drum body 3 will be described. As shown in FIG. 4, the position of the engaging portion 22 (joint) of the body cushioning member 20 is different by shifting the position of the engaging portion 22 (joint) of the drum body portion 3 in the circumferential direction by, for example, 180 degrees. I am making it.

Further, the operation related to the peripheral groove 25 of the rear cushion 21 will be described. The circumferential groove 25 is as shown in FIG. 3 when the caulking set with the body cushioning member 20 inserted into the circumferential groove 25 (before caulking the drum front plate 7 or when the body cushioning body 20 is not pressed). In this state, a gap A is formed between the back surface of the drum 2 and the drum rear plate 5, but when the drum 2 is caulked, the body cushioning member 20 is pressed by the drum front plate 7 toward the drum rear plate 5. Therefore, as shown in FIG. 2, the clearance between the back surface of the circumferential groove 25 and the drum rear plate 5 is a clearance C which is considerably smaller than the clearance A.

Therefore, the peripheral groove portion 25 of the rear shock absorber 21 is
There is an elastic force that constantly pushes the body cushioning member 20 toward the front plate 7 of the drum. Therefore, both ends of the body cushioning member 20 are located at the circumferential groove 25 of the rear cushioning member 21 and the drum front portion, respectively. It is always in pressure contact with the concave stepped portion 7b of the plate 7.

The case where each of the buffer bodies 20 and 21 is thermally deformed (expanded / contracted) will be described. First, at the time of expansion, the diameter of the body cushioning body 20 increases, the width in the axial direction increases, and the diameter of the rear cushioning body 21 also increases. in this case,
As shown in FIG. 5, when the diameter of the body cushioning body 20 is increased, the body cushioning body 20 is in a two-dot chain line state due to the gap B between the body body cushioning body 20 and the drum body 3. From the solid line, the outer peripheral portion of the peripheral groove 25 of the rear shock absorber 21 becomes the inner peripheral surface of the drum body portion 3 when the diameter of the rear shock absorber 21 is increased. The abutment prevents the diameter of the peripheral groove 25 from increasing, and the circumferential groove 25 is deformed from the two-dot chain line state to the solid line state to be absorbed accordingly. At the same time, since the axial width of the body cushioning body 20 is also increased, one end portion of the body cushioning body 20 is in an extended state, whereby the peripheral groove 25 portion of the rear cushioning body 21 becomes a drum rear plate. When the drum rear plate 5 is pressed and deformed in five directions and comes into contact with the drum rear plate 5, the drum rear plate 5 is correspondingly absorbed.

Next, at the time of contraction, the diameter of the body cushioning body 20 is reduced and the width in the axial direction is reduced, so that the rear cushioning body 21 is formed.
Is also reduced in diameter. In this case, as shown in FIG. 6, the body cushioning body 20 is contracted and deformed from the two-dot chain line state to the solid line state, and along with this, the circumferential groove 25 portion of the rear cushioning body 21 is also shown by the two-dot chain line. Correspondingly absorbed by transforming from the state to the solid line. That is, the circumferential groove 25 portion is not only reduced in diameter as shown in FIG. 6, but also deformed in the direction of the drum front plate 7.

In the above-mentioned state, the body cushioning body 20 is always kept pressed by the elastic force of the circumferential groove 25 toward the front plate 7 of the drum. Therefore, the other end of the body cushioning body 20 is the drum. The state in which the front plate 7 is pressed against the concave step portion 7b is held. It should be noted that the one end portion of the body cushioning body 20 is similarly provided with the circumferential groove 25.
Is in a pressure contact state with the concave stepped portion 7b of the drum front plate 7.
Also, the circumferential groove 25 of the rear cushion 21 and the body cushion 20 are in close contact with each other, and no gap is formed.

When the front drum plate 7 is caulked on the drum body 3, the drum front plate 7 is used to set the body cushioning member 20.
Since the rear cushion 21 is pressed in the direction of the rear cushion 21, the rear cushion 21 is displaced in the direction of the drum rear plate 5, and
As shown in FIG. 5, the other end of the drum body 3 is fitted into the outer peripheral groove 7 a of the drum front plate 7. That is, the other end of the drum body 3 is provided with the outer peripheral groove 7a of the drum front plate 7 when the caulking is set.
Be sure to wrap inside.

[0031]

[0032]

[0033]

The present invention has the following features due to the configuration described above.
Produce the effect of. According to the clothes dryer of claim 1, Dora
The drum body and the rear plate of the drum are supported by the body cushion and the rear cushion.
Since it is covered, the sound of hitting hard objects is effectively eliminated.
You can Further, since the body cushioning member is fitted in the circumferential groove of the rear cushioning member, each cushioning member is retained in the circumferential groove even if each cushioning member is thermally deformed, that is, thermally expanded and contracted during the drying operation. Thus, the caulking of the drum can be easily performed without being disengaged and the caulking of the drum (caulking work) can be reliably performed. Even if the above-mentioned thermal deformation (expansion / contraction) occurs, it can be absorbed by the deformation of the rear cushioning body, especially the deformation of its peripheral groove portion, and prevents the occurrence of bulges / wrinkles in other cushioning portions. be able to.

According to the clothes dryer of claim 2 , the expansion deformation of the body cushioning member and the rear cushioning member can be absorbed by the gap between the rear surface of the peripheral groove of the rear cushioning member and the drum rear plate. Further, since both ends of the body cushioning member are constantly in pressure contact with the circumferential groove and the drum front plate by the elastic force of the peripheral groove portion of the rear cushioning member,
It is clean because the yarn waste generated from the clothes to be dried during the drying operation does not enter the gap between the body cushioning body and the drum body and does not collect in the gap.

According to the clothes dryer of claim 3 , the other end of the drum body is always wrapped with the outer peripheral groove of the drum front plate when the caulking is set, and the caulking between the drum front plate and the drum body is performed. It can be set easily and surely.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention partially in a sectional state.

FIG. 2 is an explanatory view showing a main portion in a sectional state (after caulking).

FIG. 3 is an explanatory view showing a main part in a sectional state (at the time of caulking)

FIG. 4 is a front view of the drum body and the body cushioning body (when caulking is set).

FIG. 5 is an enlarged explanatory view of a main part showing a sectional state of each buffer body during thermal expansion.

FIG. 6 is an enlarged explanatory view of a main part showing a sectional state of each cushioning body during thermal contraction.

[Explanation of symbols]

2 is a drum, 3 is a drum body, 3a is a seam, 4 is a crimped portion, 5 is a drum rear plate, 5a is an outer peripheral groove, 6 is a crimped portion, 7
Is a drum front plate, 7a is an outer peripheral groove, 7b is a concave stepped portion, 20 is a body cushion, 21 is a rear cushion, 22 is an engaging portion (seam), 23 is an engaging convex portion (seam), and 24 is Engagement recesses (seam), 25 indicates a peripheral groove, and A indicates a gap.

Claims (2)

(57) [Claims] 1. A gold which contains clothes to be dried and is driven to rotate.
Warm air is supplied to the inside of the metal drum to dry the clothes to be dried.
In the inner part of the drum body
While mounting the annular body cushion,
Attach a rear disk-shaped rear shock absorber to the surface,
A peripheral groove is provided inside the outer peripheral part of the
A gap is provided between the rear surface of the circumferential groove and the body cushioning body.
By pressing the drum front plate to the drum rear plate side,
Fit one axial end of the rear shock absorber into the circumferential groove of the rear shock absorber.
A clothes dryer characterized by being inserted and pressed. 2. A drum located around the outside of the rear cushion.
An outer peripheral groove is provided on the outer peripheral portion of the rear plate, and
Is provided with an outer peripheral groove facing the outer peripheral groove of the drum rear plate.
Both of them are connected in the center direction in the outer peripheral groove of the drum front plate.
It is equipped with a continuous step, and one end of the drum body is
It is fitted into the outer peripheral groove of the drum rear plate and
Insert the end portion into the circumferential groove of the rear shock absorber, and insert the concave step portion.
The drum front plate when contacted with the other end of the body cushioning body
So that the other end of the drum body is located in the outer peripheral groove of
And each outer peripheral groove of the drum rear plate and the drum front plate
The end of the drum body fitted in each outer groove is
The clothes are dried according to claim 1, wherein the clothes are dried.
Machine.