JPH09290096A - Clothes dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow the use of a clothes dryer in a comfortable way by effectively eliminating the contact sound of a hard material in a metallic drum. SOLUTION: A barrel cushion body 20 is mounted on the internal surface of the barrel part 3 of a metallic drum 2, and at least a pair of engagement parts engaged to each other in an opposed state are formed on both peripheral ends of the barrel cushion body 20, thereby forming a seam. Furthermore, a rear cushion body 21 of approximately disc type is mounted as well on the internal surface of a drum rear plate 5, and a peripheral groove is formed on the internal side of the periphery of the rear cushion body 21. Also, one axial end of the barrel cushion body 20 is inserted in and coupled to the peripheral groove.

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 metal such as steel plate for heat resistance, and when this hard metal such as buttons, fasteners, and hooks of the clothes to be agitated hits the metal drum, it may feel like a mess. It was likely that a strange noise was emitted.

The present invention has been made in view of the above circumstances, and therefore an object thereof is to provide a clothes dryer which can effectively use the sound of a hard object inside a metal drum and can be used comfortably. .

[0005]

In order to achieve the above object, in the clothes dryer of the present invention, firstly, an endless annular body cushioning member is provided on at least the inner peripheral portion of the body portion of the metal drum. While installing, at both ends in the circumferential direction of this body cushioning body,
It is characterized in that at least a pair of engaging portions that are opposed to each other and engage with each other are provided to form a seam.

According to the first means, most of the hard material hits the body cushion inside the drum, and it is possible to avoid hitting the drum by the body cushion, effectively eliminating the sound of hitting the hard body. be able to. Further, since the seam of the body cushioning body is integrated by the pair of engaging portions, the body cushioning body can be easily rounded into a cylindrical shape without displacement at both ends in the circumferential direction. It is possible to easily attach the partial buffer body.

Secondly, in the clothes dryer of the present invention,
An annular drum cushion is attached to the inner circumference of the drum barrel, and a substantially disk-shaped rear cushion is attached to the inner surface of the drum rear plate, and a circumferential groove is formed inside the outer periphery of the rear cushion. It is characterized in that one end portion of the body cushioning body in the axial direction is fitted and inserted into the circumferential groove.

According to the second means, it is possible to prevent the hard object from hitting the drum body and the drum rear plate not only by the body cushioning body but also by the rear cushioning body, so that the hit sound of the hard body is more effective. You can get rid of it. Further, since one end portion of the body cushioning body in the axial direction is fitted into the circumferential groove of the rear cushioning body, even if each cushioning body is thermally deformed, that is, thermally expanded or contracted during the drying operation, each cushioning body does not The axial end portion 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 can be reliably performed. 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]

BEST MODE FOR CARRYING OUT 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 1, for example.
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. are 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]

The present invention has the following effects due to the configuration described above. According to the clothes dryer of claim 1, most of the hard material hits the body cushion inside the drum, and hitting the drum is avoided by the body cushion, so that the hit sound of the hard matter is effectively eliminated. You can
Further, since the seam of the body cushioning body is integrated by the pair of engaging portions, the body cushioning body can be easily rounded into a cylindrical shape without displacement at both ends in the circumferential direction. It is possible to easily attach the partial buffer body.

According to the clothes dryer of claim 2, since the joint positions of the body cushioning body and the drum body portion are displaced, the respective other end portions of the body body cushioning body and the drum body portion are formed by the mutual joints. They are not interfered with each other and are in a circular shape. Therefore, it is easy to cover the drum cushion and the drum drum with the drum front plate, and the caulking can be easily and reliably performed.

According to the clothes dryer of claim 3, the hard object is prevented from hitting the drum body and the rear plate of the drum not only by the body cushioning member but also by the rear cushioning member, so that the hard object can be hit. It can be eliminated more effectively. 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. It is possible to easily perform the crimping of the drum without coming off, and the crimping connection (crimping work) of the drum can be surely performed. 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.

According to the clothes dryer of claim 4, 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 5, 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 (5)

[Claims] 1. An apparatus in which warm air is supplied to the inside of a metal drum, which accommodates clothes to be dried and is driven to rotate, to dry the clothes to be dried, wherein at least the inside of the drum body of the drum. An end-shaped annular body cushioning body is attached to the peripheral portion, and at least a pair of engaging portions that face each other and engage with each other are provided at both ends in the circumferential direction of the body portion cushioning body to form a seam. Characteristic clothes dryer. 2. The clothes dryer according to claim 1, wherein each circumferential seam position of the drum body and the body cushion is different in the circumferential direction. 3. An apparatus in which warm air is supplied to the inside of a metal drum, which contains clothes to be dried and is driven to rotate, to dry the clothes to be dried, wherein an annular shape is provided on an inner peripheral portion of a drum body. In addition to mounting the body cushioning member of the drum cushion, a substantially disk-shaped rear cushioning member is mounted on the inner surface of the drum rear plate, and a peripheral groove is provided inside the outer peripheral portion of the rear cushioning member. A clothes dryer in which one end portion of the buffer body in the axial direction is fitted and inserted. 4. A gap is provided between the drum rear plate and the back surface of the peripheral groove of the rear cushion, and the drum cushion is pressed toward the drum rear plate by the drum front plate to push the drum cushion to the rear cushion. The clothes dryer according to claim 3, wherein the clothes cushion is pressed against the circumferential groove of the rear cushion. 5. An outer peripheral groove of the drum rear plate located around the outer side of the rear cushioning member is provided with an outer peripheral groove, and an outer peripheral groove facing the outer peripheral groove of the drum rear plate is provided with an outer peripheral portion of the drum front plate. In the outer peripheral groove of the drum front plate, a concave step portion is provided which is continuous in the central direction, and one end of the drum body is fitted into the outer peripheral groove of the drum rear plate and one end of the body cushioning body is inserted. The other end of the drum body is positioned in the outer peripheral groove of the drum front plate when the recessed step portion is fitted into the peripheral groove of the rear cushion and brought into contact with the other end of the body cushion. The outer peripheral groove of the drum rear plate and the drum front plate and the respective end portions of the drum body portion fitted into the outer peripheral groove are caulked to each other. 4. The clothes dryer according to item 4.