JP2012081159A - Clothing dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clothing dryer in which the rotation of a motor securely transmits to a rotating drum and a blow fan to stably rotate.SOLUTION: The clothing dryer comprises a rotating drum 22 rotatably provided within a body 23, a blow fan 29 blowing air for drying heated with heating means 31 into the rotating drum 22, a motor 28 driving the rotating drum 22 and the blow fan 29, and a plurality of first rollers 26a and 26b supporting the front of the rotating drum 22 from downward. The backside of the rotating drum 22 is supported with a supporting part 27 and the circumference part of the front side of the rotating drum 22 is in contact with the plurality of first rollers 26a and 26b. At least one of the rollers is anchored to one side of a rotating axis 28a of the motor 28 and rotates the rotating drum 22. The blow fan 29 is anchored in the other side of the rotating axis of the motor 28.

Description

  The present invention relates to a clothes dryer for drying clothes.

  Conventionally, this type of clothes dryer is generally configured as shown in FIG. Hereinafter, the configuration will be described. As shown in FIG. 9, a rotating drum 3 that rotates about a horizontal axis 2 as a central axis is disposed in the outer case 1. A clothing insertion port 4 formed on the front surface of the rotating drum 3 is opened on the front surface of the outer case 1 and can be opened and closed by a door 5. A circulation air path 7 including a drying chamber 6 set inside the rotary drum 3 is configured in the outer case 1. The circulation air passage 7 has a drying chamber 6, a blower chamber 8, a heat exchange chamber 9, and the like in the middle, and air in the drying chamber 6 enters the blower chamber 8 from an exhaust port 10 provided on the back wall side of the rotating drum 3. It flows through the heat exchange chamber 9 and circulates to the drying chamber 6 from a blowout port 11 provided in front of the drying chamber 6. Arrow A indicates the flow of wind.

  A fan 12 is provided in the air blowing chamber 8, and the air heated to a high temperature by the heating means 13 is supplied into the drying chamber 6 from the blowout port 11, and is used for drying the clothes 14 therein. A filter 15 is attached to the inner wall of the rotary drum 3 forming a part of the circulation path 7 so as to capture the lint coming out of the clothes 14. Reference numeral 16 denotes a drive motor, and its rotation is transmitted to the rotary drum 3 and the fan 12 via belts 17 and 18.

  The belt 17 for the rotating drum 3 transmits a rotational force to the rotating drum 3, so that tension is applied by the idler mechanism 19, a frictional force is applied between the rotating drum 3 and the belt 17, and the rotation of the motor 16 is applied to the rotating drum 3. It is made to transmit (for example, refer patent document 1).

  In addition, it is considered that a roller for rotating the rotating drum is circumscribed on the outer periphery of the rotating drum so that the rotational force of the motor is transmitted to the rotating drum via the roller (for example, Patent Documents). 2).

JP-A-7-265591 Japanese Patent Laid-Open No. 2004-24580

  However, in the configuration described in Patent Document 1, since the rotational force of the motor 16 is transmitted to the rotary drum 3 through the belt 17, the belt 17 is cut or the tension force by the idler mechanism 19 is reduced to reduce the belt 17. Slips, and there is a problem that the rotational force of the motor 16 cannot be transmitted to the rotary drum 3.

  Further, since the blower fan 12 also transmits the rotation of the motor 16 by the belt 18, the belt 18 slips or breaks in the same manner as the transmission of the rotational force of the motor 16 to the rotating drum 3, and the rotation of the motor 16. However, there is a problem that it may not be transmitted to the blower fan 12. In addition, driving with such a belt requires a mechanism for applying tension to the belt 17 or the belt 17 using a plurality of pulleys, and there is a problem that the configuration is complicated and workability at the time of assembly is poor. .

  In addition, the device described in Patent Document 2 has a configuration in which a roller for rotating the rotating drum is provided on the rotating drum shaft side provided in the center of the back surface of the rotating drum, and the rotation of the roller is transmitted on the back surface side of the rotating drum. For this reason, there is a problem that the clothes thrown into the rotating drum exert a force for displacing the front side of the rotating drum downward, and the rotating drum cannot be smoothly rotated.

  The present invention solves the above-described conventional problems, and provides a clothes dryer that can reliably transmit the rotation of the motor to the rotating drum and the blower fan, and can stably rotate the rotary drum and the blower fan. The purpose is to provide.

  In order to solve the conventional problem, a clothes dryer of the present invention includes a motor that drives a rotating drum and a blower fan, and a plurality of first rollers that support a front portion of the rotating drum from below, The rotating drum supports a rear portion with a support portion, and abuts the plurality of first rollers on an outer peripheral portion of the front portion, and at least one of them is fixed to one of the rotation shafts of the motor and rotates. The drum is rotated and the blower fan is fixed to the other rotating shaft of the motor.

  Accordingly, even when the amount of clothes to be put in or the wet state changes, the rotation of the motor can be reliably transmitted to the rotating drum and the blowing fan, and the rotating drum and the blowing fan can be stably rotated. it can.

  The clothes dryer of the present invention can reliably transmit the rotation of the motor to the rotating drum and the blower fan even when the amount of clothes to be put in and the wet state change, and the rotating drum and the blower fan can be stably Can be rotated.

1 is a longitudinal sectional view of a clothes dryer according to Embodiment 1 of the present invention. BB sectional view of the clothes dryer in FIG. Left side vertical section of the clothes dryer The longitudinal cross-sectional view of the clothes dryer in Embodiment 2 of this invention Vertical section of a clothes dryer according to Embodiment 3 of the present invention Vertical section of a clothes dryer according to Embodiment 4 of the present invention Vertical section of a clothes dryer according to a fifth embodiment of the present invention A longitudinal sectional view of a clothes dryer according to a sixth embodiment of the present invention. Vertical section of a conventional clothes dryer

  A first aspect of the invention is a rotary drum that is rotatably provided in a main body, a blower fan that blows drying air heated by heating means into the rotary drum, and a motor that drives the rotary drum and the blower fan And a plurality of first rollers for supporting the front part of the rotating drum from below, the rotating drum supports the rear part by a support part, and the plurality of first rollers on the outer peripheral part of the front part At least one of which is fixed to one of the rotating shafts of the motor to rotate the rotating drum, and the blower fan is fixed to the other of the rotating shafts of the motor, so The rotation of the motor can be reliably transmitted to the rotating drum and the blower fan even when the amount and the wet state change, and the rotating drum and the blower fan are stably rotated. Door can be.

According to a second invention, in particular, in the first invention, a speed reduction mechanism is provided between the motor and the first roller that transmits the rotation of the motor to the rotating drum, so that the motor is rotated at a high speed. Even if the amount of air blown by the blower fan is increased, the rotating drum can be rotated at an optimum rotational speed. In addition, the diameter ratio between the rotating drum and the first roller can be reduced, and the driving of the motor can be reliably transmitted to the rotating drum via the first roller.

  In the third invention, in particular, in the first or second invention, a speed increasing mechanism is provided between the motor and the blower fan, so that the rotary drum is set to an optimum rotational speed and the feed by the blower fan is performed. The air volume can be increased.

  In the fourth invention, in particular, the first roller of any one of the first to third inventions transmits at least one roller for transmitting rotation of the motor to the rotating drum and rotates the rotating drum, By having at least one roller that rotates in conjunction with and supports the rotating drum, the function of transmitting the rotational drive of the motor to the rotating drum by the plurality of first rollers and the rotation of the rotating drum are linked. Can be provided, and the rotating drum can be rotated stably.

  According to a fifth aspect of the invention, in particular, in any one of the first to fourth aspects of the invention, by providing a second roller that supports the outer peripheral portion of the front portion of the rotating drum from above, The displacement can be suppressed, and the rotation of the first roller can be reliably transmitted to the rotating drum.

  According to a sixth aspect of the present invention, in particular, in any one of the first to fifth aspects, the first roller is provided with a slip stopper in the transmission portion of the first roller that transmits the rotation of the motor to the rotating drum. Can be reliably transmitted to the rotating drum.

  According to a seventh aspect of the invention, in particular, in any one of the first to fifth aspects of the invention, a meshing mechanism is provided in the transmission portion of the first roller that transmits the rotation of the motor to the rotating drum. Can be reliably transmitted to the rotating drum.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited by this embodiment.

(Embodiment 1)
1 is a longitudinal sectional view of a clothes dryer according to the first embodiment of the present invention, FIG. 2 is a sectional view taken along line BB of FIG. 1, and FIG. 3 is a longitudinal sectional view of a left side of the clothes dryer. It is shown.

  In FIG. 1 to FIG. 3, a rotating drum 22 for receiving and drying an object to be dried such as clothing 21 is rotatably provided in a main body 23 of the clothing dryer. On the front surface of the main body 23, a drum front plate 24 provided with an input port 24a for inputting clothes 21 and the like into the rotary drum 22 is disposed. An annular seal member 25 fitted in a recess is provided outside the inlet 24a of the drum front plate 24, and the front end surface 22a of the rotary drum 22 is slidably contacted with the seal member 25 to rotate. The rotating drum 22 is rotatable in a sealed state so that drying air does not leak from between the front end surface 22a of the drum 22 and the sealing member 25.

  Two first rollers 26a and 26b are provided on the outer peripheral portion of the front portion of the rotating drum 22, and the first rollers 26a and 26b are in contact with the outer peripheral portion to support the front side of the rotating drum 22 from below. ing.

The first roller 26 a is rotated by driving the motor 28 and is transmitted to the rotating drum 22 to rotate the rotating drum 22. The first roller 26b is rotated by the rotation of the rotary drum 22, is rotatably provided by the roller support portion 26c, and supports the front side of the rotary drum 22 from below.

  The first rollers 26 a and 26 b are disposed at the same angle in the left-right direction at an angle θ from the rotation center of the rotating drum 22, and are supported in a well-balanced manner near the front end surface 22 a of the rotating drum 22 from below. The back of the rotary drum 22 is supported by a support portion 27. Accordingly, the rotary drum 22 supports the rear surface side by the support portion 27 and supports the front surface side by the first rollers 26a and 26b.

  One end of the rotating shaft 28 a of the motor 28 is rotatably supported by the drum front plate 24, and the first roller 26 a can be stably rotated by driving the motor 28. The first roller 26b is rotatably supported on the drum front plate 24 by a roller support portion 26c.

  A blower fan 29 that blows the drying air is fixed to the other of the rotating shafts 28 a of the motor 28. That is, the first roller 26a and the blower fan 29 are disposed on both sides of the motor 28, the first roller 26a is fixed to one of the rotation shafts 28a, and the blower fan 29 is fixed to the other of the rotation shafts 28a. ing.

  The first roller 26 a is located on the front side of the rotary drum 22, and the blower fan 29 is located on the rear side of the rotary drum 22. When the motor 28 is driven, the rotary drum 22 is rotated via the first roller 26a, and the blower fan 29 is rotated.

  The drying air passes through the ventilation path 30 by the blower fan 29, is heated by the heating means 31, and is introduced into the rotary drum 22 as a drying chamber in which the clothes 21 are put.

  About the clothes dryer comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. First, the clothes 21 to be dried are opened into the rotary drum 22 through the input port 24a by opening the door 32. Next, when the drying operation is started, the motor 28 is driven and the first roller 26a is rotated. Due to the rotation of the first roller 26a, the outer periphery of the first roller 26a and the rotating drum 22 are in contact with each other, and the rotating drum 22 is rotated by the frictional force.

  The clothes 21 in the rotating drum 22 are lifted in the rotating direction of the rotating drum 22 by a baffle 22 b provided on the inner peripheral surface of the rotating drum 22, and are stirred in the rotating drum 22. Further, the flow of the drying air indicated by the arrow A is generated by the rotation of the blower fan 29.

  The drying air blown by the blower fan 29 fixed to the rotary shaft 28a of the motor 28 is heated by the heating means 31 through the blower passage 30 and blown into the rotary drum 22 to take away moisture from the clothing 21. It returns to the ventilation path 30, is heated with the heating means 31, circulates in the rotating drum 22, and drying of the clothing 21 advances.

  Since the front end surface 22a of the rotary drum 22 is slidably brought into contact with the seal member 25, when a large amount of wet clothing is put into the rotary drum 22, the rotary drum supported by the rear support portion 27. No. 22 is applied with a force that causes the front portion to move downward due to the weight of clothing and moisture contained in the clothing.

  When the front portion of the rotating drum 22 is displaced downward, the contact with the seal member 25 is biased and strengthened, and the rotating drum 22 cannot be smoothly rotated. This bias varies depending on the amount of clothes put in and the wet state.

  However, since the front part of the rotating drum 22 is supported by the first rollers 26a and 26b in a balanced manner near the front end surface 22a of the rotating drum 22 from below, the amount of clothes to be put in and the wet state have changed. Even in this case, the rotation of the motor 28 can be reliably transmitted to the rotating drum 22 by the two first rollers 26a and 26b on the outer peripheral portion of the front portion of the rotating drum 22, and the rotating drum 22 can be rotated stably. Can be made.

  That is, the front side of the rotary drum 22 is made up of the first roller 26 a that transmits the rotational drive of the motor 28 to the rotary drum 22 and rotates, and the first roller 26 b that rotates in conjunction with the rotation of the rotary drum 22. By supporting from below, the rotational force can be transmitted simultaneously with supporting the load applied to the front portion of the rotating drum 22.

  As described above, in the present embodiment, the front portion of the rotary drum 22 is supported by the plurality of first rollers 26a and 26b, and the rotary drum 22 supports the rear portion by the support portion 27 and the front portion. A plurality of first rollers 26a and 26b are brought into contact with the outer peripheral portion, and at least one of them transmits the rotation of the motor 28 to the rotating drum 22 to rotate the rotating drum 22, Even when the amount of clothes to be thrown in or the wet state changes, the rotation of the motor 28 can be reliably transmitted to the rotating drum 22, and the rotating drum 22 can be stably rotated.

  Further, since the blower fan 29 is fixed to the rotating shaft 28a of the motor 28, the rotation of the motor 28 is reliably transmitted to the rotary drum 22 and the blower fan 29 even when the amount of clothes to be put in or the wet state changes. In addition, the rotating drum 22 and the blower fan 29 can be stably rotated.

(Embodiment 2)
FIG. 4 is a longitudinal sectional view of a clothes dryer in the second embodiment of the present invention. A feature of the present embodiment is that a speed reduction mechanism 33 is provided between the motor 28 and the first roller 26 a that transmits the rotation of the motor 28 to the rotary drum 22. Other configurations are the same as those of the first embodiment, the same reference numerals are given to the same configurations, and the detailed description of the first embodiment is used.

  Thereby, even if the motor 28 is rotated at a high speed to increase the amount of air blown by the blower fan 29, the rotary drum 22 can be rotated at an optimum rotational speed. Further, the diameter ratio between the rotary drum 22 and the first roller 26a can be reduced, and the drive of the motor 28 can be reliably transmitted to the rotary drum 22 via the first roller 26a.

(Embodiment 3)
FIG. 5 is a longitudinal sectional view of a clothes dryer according to the third embodiment of the present invention. The feature of this embodiment is that a speed increasing mechanism 34 is provided between the motor 28 and the blower fan 29. Other configurations are the same as those of the first embodiment, the same reference numerals are given to the same configurations, and the detailed description of the first embodiment is used.

  Thereby, the rotating drum 22 can be set to the optimal number of rotations, the amount of air blown by the blower fan 29 can be increased, and the drying performance can be improved.

(Embodiment 4)
FIG. 6 is a longitudinal sectional view of a clothes dryer according to the fourth embodiment of the present invention. A feature of the present embodiment is that a second roller 35 that supports the outer peripheral portion of the front portion of the rotary drum 22 from above is provided. The second roller 35 is rotatably supported on the drum front plate 24 by a roller support portion 35a. Other configurations are the same as those of the first embodiment, the same reference numerals are given to the same configurations, and the detailed description of the first embodiment is used.

  Thereby, the vertical displacement of the rotating drum 22 can be suppressed, and the rotation of the first roller 26 a can be reliably transmitted to the rotating drum 22.

(Embodiment 5)
FIG. 7 is a longitudinal sectional view of a clothes dryer in the fifth embodiment of the present invention. A feature of the present embodiment is that a non-slip 36 is provided in the transmission portion of the first roller 26 a that transmits the rotation of the motor 28 to the rotary drum 22. Other configurations are the same as those of the first embodiment, the same reference numerals are given to the same configurations, and the detailed description of the first embodiment is used.

  The anti-slip 36 is composed of a member having a large friction coefficient. The first roller 26 a is provided in the rotational force transmission portion that is in contact with the rotary drum 22, and is formed on the outer peripheral portion in the vicinity of the front end surface 22 a of the rotary drum 22. The anti-slip 36 may be provided on the first roller 26 a side, or may be provided on both the first roller 26 a and the rotating drum 22.

  Thereby, the rotation of the first roller 26 a due to the drive of the motor 28 can be reliably transmitted to the rotating drum 22.

(Embodiment 6)
FIG. 8 is a longitudinal sectional view of a clothes dryer in the sixth embodiment of the present invention. A feature of the present embodiment is that a meshing mechanism 37 is provided in the transmission portion of the first roller 26 a that transmits the rotation of the motor 28 to the rotary drum 22. Other configurations are the same as those of the first embodiment, the same reference numerals are given to the same configurations, and the detailed description of the first embodiment is used.

  The meshing mechanism 37 forms a gear on the transmission surface of the first roller 26 a that transmits the rotation of the motor 28 to the rotary drum 22, that is, the circumferential surface, and the gear meshing with the gear of the first roller 26 a is used as the rotary drum. 22 is formed on the outer peripheral portion. The meshing mechanism 37 may be formed between the rotating drum 22 by forming a gear on the second roller 35.

  Thereby, the rotation of the first roller 26 a due to the drive of the motor 28 can be reliably transmitted to the rotating drum 22.

  As described above, the clothes dryer according to the present invention can reliably transmit the rotation of the motor to the rotating drum and the blower fan even when the amount of clothes to be put in or the wet state changes. Since the blower fan can be stably rotated, it is useful as a clothes dryer.

DESCRIPTION OF SYMBOLS 22 Rotating drum 23 Main body 26a 1st roller 26b 1st roller 27 Support part 28 Motor 28a Rotating shaft 29 Blower fan 31 Heating means

Claims (7)

A rotating drum that is rotatably provided in the body, a blower fan that blows drying air heated by heating means into the rotary drum, a motor that drives the rotary drum and the blower fan, and A plurality of first rollers that support a front portion from below, and the rotating drum supports the rear portion by a support portion, and abuts the plurality of first rollers on the outer peripheral portion of the front portion, One is a clothes dryer which is fixed to one of the rotating shafts of the motor and rotates the rotating drum, and the blower fan is fixed to the other rotating shaft of the motor. The clothes dryer according to claim 1, wherein a speed reduction mechanism is provided between the motor and a first roller that transmits the rotation of the motor to a rotating drum. The clothes dryer according to claim 1 or 2, wherein a speed increasing mechanism is provided between the motor and the blower fan. The first roller has at least one roller that transmits the rotation of the motor to the rotating drum to rotate, and at least one roller that rotates in conjunction with the rotation of the rotating drum and supports the rotating drum. Item 4. The clothes dryer according to any one of Items 1 to 3. The clothes dryer of any one of Claims 1-4 which provided the 2nd roller which supports the outer peripheral part of the front part of a rotating drum from upper direction. The clothes dryer according to any one of claims 1 to 5, wherein a slip stopper is provided at a transmission portion of the first roller that transmits the rotation of the motor to the rotating drum. The clothes dryer of any one of Claims 1-5 which provided the meshing mechanism in the transmission part of the 1st roller which transmits rotation of a motor to a rotating drum.