KR20030021052A - Drum belt assembling structure in home appliances - Google Patents

Abstract

PURPOSE: A structure for assembling a drum belt of home appliances is provided to mount a belt while watching the belt and an idler unit via an assembling through-hole, and simplify repairing process and management of the belt, the idler unit and a motor. CONSTITUTION: A structure for assembling a drum belt of home appliances includes a cabinet(30) receiving various parts and forming an appearance, a drum(40) mounted in the cabinet to rotate by the driving force of a motor transmitted via a belt(50), an idler assembly for applying tension required for the power transmission via the belt to the belt, and an assembling through-hole(60) formed in the cabinet at positions corresponding to the mounting position of the idler unit. The assembling through-hole is provided with a cover(65) for alternatively closing the assembling through-hole.

Description

Drum belt assembling structure in home appliances

The present invention relates to a home appliance, and more particularly, to a drum belt assembly structure of a home appliance for forming an assembly tool for assembling the belt for driving the drum on one side of the cabinet.

In the present specification, a description will be given of a prior art and the present invention using a dryer as an example of a home appliance.

1 and 2 schematically show a main configuration of a dryer according to the prior art. According to this, the cabinet 1 forms the appearance of the dryer. In addition to the cabinet 1, the appearance of the dryer consists of many parts. For example, the front panel 2 may be provided at the front of the dryer, and the top panel 3 may be further provided at the top of the dryer.

Inside the cabinet 1 is provided a drum (5) which is dried in the drying chamber therein. A door 7 is installed in the front panel 2 of the cabinet 1 to open and close the drying chamber inside the drum 5.

The drum 5 is rotated by receiving the driving force of the motor 9 as a driving source through the belt 10. To this end a belt 10 is wound around the drive pulley 11 provided on the rotary shaft 9 ′ of the motor 9, and the belt 10 is also wound around the outer circumferential surface of the drum 5.

On the other hand, the idler 13 is provided at a position adjacent to the drive pulley 11 so that the tension of the belt 10 is maintained at a predetermined value or more. The idler 13 serves to make the belt 10 contact the drum 5 and the driving pulley 11 in a longer section with a predetermined or more tension. This idler 13 is located in the space between the motor 9 and the drum 5.

Next, an exhaust passage 15 is connected to the front end of the drum 5 so that air for drying is circulated in and out of the drum 5. The exhaust passage 15 is for exhausting air having a relatively high humidity by absorbing moisture in the drum 5. The inlet of the exhaust passage 15 is provided with a lint filter 16 for filtering seams from laundry cloth and the like.

A blower 9 is used to draw out air in the drum 5 through the exhaust passage 15. The blower 17 is driven by a separate motor 17 ′ to extract the air in the drum 5 and to exhaust it to the outside or to circulate the inside of the drum 5 again. Of course, in order to circulate the air to the inside of the drum (5) separately to pass the configuration for condensing the water. In addition, a heat source 19 for forming hot air supplied into the drum 5 may be provided.

In a conventional dryer having such a configuration, a laundry cloth for drying is put into a chamber of the drum 5, the drum 5 is rotated to stir the laundry cloth, and at the same time, hot air is supplied into the chamber and exhausted. Drying is carried out. At this time, air is exhausted to the outside of the drum 5 by the suction force of the blower 17, and the drying is performed while hot air is supplied to the inside of the drum 5.

However, the prior art as described above has the following problems.

The belt 10 for the rotation of the drum 5 is wound on the outer circumferential surface of the drum 5 and the driving pulley 11, and the drum 5 of the drum 5 has a predetermined tension by the idler 13. It is in close contact with the outer circumferential surface and the driving pulley (11). Therefore, once the belt 10 is loosely wound on the drum 5 and the driving pulley 11, the belt 10 must be wound around the idler 13 while overcoming the elastic force of the idler 13. .

However, the position in which the belt 10 is wound around the drum 5 is a portion corresponding to the center of the drum 5, and the center portion of the drum 5 is also a center portion of the cabinet 1. Therefore, the operator should work to walk the belt 10 to the idler 13 before installing the front panel 2 in the front of the cabinet (1) during the assembly work.

That is, in order to walk the belt 10 to the idler 13 which is the middle part of the cabinet 1 and is located below the drum 5, the worker is curled in front of the cabinet 1 in a drum state. The work is to be extended to the lower part of (5). And since the idler 13 is located under the drum 5, it should be operated in a state where the vision is obscured by the drum 5.

Therefore, there is a problem in that the workability of the operation of detaching the belt 10 from the drum 5 and re-rolling the belt 10 for work or maintenance of the belt 10 during the initial assembly is deteriorated.

Therefore, an object of the present invention is to solve the problems of the prior art as described above, to facilitate the disassembly and assembly of the belt for transmitting the driving force for rotating the drum.

1 is a side cross-sectional view schematically showing the configuration of a dryer according to the prior art.

Figure 2 is a front sectional view schematically showing the configuration of the dryer shown in FIG.

Figure 3 is a partially cutaway perspective view showing a preferred embodiment of the drum belt assembly structure of home appliances according to the present invention.

Figure 4 is a side cross-sectional view showing a configuration of an embodiment of the present invention.

Figure 5 is a cross-sectional view showing a combined state of the assembly hole and the through-hole cover constituting an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

30: cabinet 32: front panel

34: top panel 35: control panel

37: Base 38: Leg

40: drum 43: motor

45: motor bracket 46: rotating shaft

48: drive pulley 50: belt

52: idler 54: idler arm

55: hinge 57: tension spring

60: assembly through 62: seating end

63: hook hole 65: through cover

66: handle groove 67: hook hook

68: locking piece 69: inclined surface

According to a feature of the present invention for achieving the object as described above, the present invention is provided with a cabinet having various parts therein and constituting the appearance, and is installed in the cabinet and rotated by receiving the driving force of the motor through the belt And an idler assembly for applying the tension required for power transmission through the belt to the belt, and an assembly hole formed through the cabinet corresponding to the installation position of the idler assembly.

The assembly through hole is further provided with a through cover for selectively shielding the assembly through hole.

A stepped seating end is formed so as to be recessed relative to the surrounding cabinet portion surrounding the edge of the assembly hole, and the hole cover is seated and fastened to the seating end.

Hooks and hooks for fixing the through-covers to the cabinet are formed at the corresponding positions of the assembled through-holes and the through-covers.

According to the present invention having such a configuration there is an advantage that the ease of assembly and maintenance work is made easier to walk and unwind the belt connecting the drum and the motor.

Hereinafter, a preferred embodiment of a drum belt assembly structure of a home appliance according to the present invention as described above will be described in detail with reference to the accompanying drawings.

3 is an exploded perspective view showing the configuration of an embodiment of the present invention, Figure 4 shows an embodiment of the present invention in a side cross-sectional view.

As shown in these figures, the cabinet 30 constitutes the appearance of the dryer. The cabinet 30 is formed in a rectangular cylindrical shape vertically long in this embodiment. The front panel 32 is mounted on the front surface of the cabinet 30 to form the front surface of the dryer. A top panel 34 forms an upper surface of the dryer at an upper end of the cabinet 30, and a control panel 35 is provided at a rear end of the top panel 34. The control panel 35 is provided with various buttons and knobs for operating the dryer.

The base 37 is installed at the lower end of the cabinet 30. The base 37 forms a lower end of the dryer, and various components are mounted therein. Four edges of the lower surface of the base 37 are provided with legs 38 supported on the bottom surface on which the dryer is installed.

The drum 40 is installed inside the cabinet 30. The drum 40 has a drying chamber formed therein to perform drying of the laundry cloth. The drum 40 is selectively opened and closed by a door 42 installed in the front panel 32 to communicate with the outside.

The drum 40 is driven by a motor 43. The motor 43 is supported by the motor bracket 45 on the base 37. The drive shaft 48 is provided on the rotation shaft 46 of the motor 43.

On the other hand, the belt 50 is wound on the drive pulley 48 and the drum 40 at the same time. The belt 50 receives the driving force of the motor 43 through the driving pulley 48 to rotate the drum 40.

Here, an idler assembly is used to allow the belt 50 to contact the drive pulley 48 and the drum 40 in more sections with a predetermined tension or more. In other words, by pressing one side of the belt 50 to maximize the area in which the belt 50 is in contact with the drum 40 and the drive pulley 48 and to maintain a predetermined tension or more.

To this end, the idler 52 presses one side of the belt 50. The idler 52 is rotatably mounted to the idler arm 54. The idler arm 54 is rotatably installed around the hinge 55 on the motor bracket 45, and the idler arm 54 has one end thereof by a tension spring 57 installed at the motor bracket 45. It has elastic force. The idler arm 54 has a tendency to rotate in the direction in which the idler 52 presses the belt 50 in a direction having a predetermined or more tension due to the elastic force by the tension spring 57. 4 illustrates an example in which the idler arm 54 is rotatably installed on the base 37.

Next, the assembly through-hole 60 is formed at one side lower end of the cabinet 30. The assembly through hole 60 is formed at a position where the idler 52 is visible when looking through the cabinet 30 through it. A seating end 62 is formed around the edge of the assembly through hole 60. The seating end 62 is a stepped portion so as to be slightly recessed than the surface of the cabinet 30 around the assembly hole 60, and has a step that is at least as large as the thickness of the hole cover 65 to be described below. A plurality of hook holes 63 are drilled in the seating end 62.

The assembly through hole 60 is selectively opened and closed by a through cover (65). The through cover 65 has a shape corresponding to that of the assembly through hole 60, and has a size that allows the edge circumference thereof to be seated on the seating end 62. The outer surface of the through cover 65 is formed so that the handle groove 66 is recessed to facilitate the handling of the through cover (65).

A hook hook 67 is formed at an inner surface of the through cover 65 at a position corresponding to the hook hole 63. The hook hook 67 is hooked on the hook hole 63 to allow the cover cover 65 to close the assembly hole (60). The hook hook 67 may be separately formed and attached to the through cover 65, or may be formed by bending one side of the through cover 65. Of course, the hook hook 67 may be integrally formed with the through cover 65 according to the material of the through cover 65.

At the distal end of the hook hook 67, a locking piece 68, which is hooked to the rear surface of the seating end 62 as shown in FIG. 5, is bent perpendicularly to the extension direction of the hook hook 67. One end of the piece 68 is formed with an inclined surface 69 to be easily hooked to the hook hole 63. The inclined surface 69 may be formed by bending the tip of the locking piece 68.

Hereinafter, the operation of the drum belt assembly structure of the home appliance according to the present invention having the configuration as described above will be described in detail.

Belt 50 for transmitting the power for the rotation of the drum 40 in the dryer of the embodiment of the present invention should be in close contact with the drum 40 and the driving pulley 48 with a predetermined or more tension. To this end, tension is applied to the belt 50 using the idler 52.

Therefore, in a state where the installation of the drum 40 and the motor 43 is completed, the belt 50 is roughly hooked to the drum 40 and the driving pulley 48, and one side of the belt 50 is connected to the idler ( 52, the tension is applied to the belt 50 by the elastic force of the tension spring 57.

To this end, the operator checks the idler 52 and the belt 50 through the assembly hole 50 while overcoming the elastic force of the tension spring 57 that supports the idler arm 54. Rotate slightly in one direction. Then, the belt 50 is hung on the idler 52 and the idler arm 54 is placed so that the idler 52 applies the elastic force to the belt 50 by the elastic force of the tension spring 57.

In this case, while the belt 50 has a predetermined tension as shown in FIG. 3, the belt 50 may contact the outer surface of the drum 40 with the driving pulley 48 in a longer section and transmit power by frictional force. It becomes possible.

Next, the through cover 65 is mounted in the assembly through hole 60. That is, the through cover 65 is positioned at the inlet of the assembled through 60. At this time, the through cover 65, as indicated by the dotted line in Figure 5, should be in a position slightly higher than the assembly through hole (60).

In this state, the hook hook 67 is inserted into the hook hole 63 and the through cover 65 is moved downward so that the hook hook 67 is supported at the lower end of the hook hole 63. . At this time, the locking piece 68 is hooked to the rear surface of the seating end 62.

In this case, the edge of the through-cover 65 is seated on the seating end 62 and the surface of the through-cover 65 maintains the same height as the surface of the cabinet 30 around the assembly through-hole 60. do.

On the other hand, in the case of separating the through-cover 65 from the assembly through-hole 60, the operator to place the finger in the handle groove 66 and to move to the top while pulling the through-cover 65 to the outside.

The present invention of the configuration described above is not necessarily applied only to the dryer, it can be applied to a home appliance for rotating the drum using a belt. For example, there may be a washing machine.

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

In the drum belt assembly structure of the home appliance according to the present invention as described in detail above, the assembly hole is formed at the position where the idler installed at the bottom of the drum is best seen so that the worker can walk the belt while watching the belt and the idler. Since the assembly and maintenance workability is greatly improved.

And the assembly through-hole cover to be mounted and separated without a separate tool. Therefore, it is possible to obtain the effect that the work for the maintenance of the belt or idler or motor is made easier.

Claims (4)

Cabinets which are provided with various parts and constitute the exterior, A drum which is installed inside the cabinet and rotates by receiving a driving force of a motor through a belt; An idler assembly for applying the tension required for power transmission through the belt to the belt; Drum belt assembly structure of the home appliance, characterized in that it comprises a through-hole formed through the cabinet corresponding to the installation position of the idler assembly. The drum belt assembly structure of claim 1, wherein the assembly through hole further comprises a through cover for selectively shielding the assembly through hole. The drum belt of claim 2, wherein a stepped seating end is formed so as to be relatively recessed from the surrounding cabinet portion surrounding the edge of the assembly hole, and the hole cover is seated and fastened to the seating end. Assembly structure. The drum belt assembly structure of claim 2, wherein a hook hole and a hook hook for fixing the through cover to the cabinet are formed at corresponding edges of the assembling through hole and the through cover. .