JPS6352920B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drying device, and more particularly to a drum-type drying device in which a door for opening and closing a clothes slot has good operability.

This type of drum drying device has a drum that dries the material to be dried while rotating, a main body case that has an input port facing the drum for introducing the material to be dried into the drum, and a door that opens and closes this input port. It is equipped with

Doors are constructed from a plastic outer frame and a transparent plate, and many have a toe portion integrally formed with the outer frame. However, although it is generally said that the structure of the totsuto part is easy to operate when the hand is placed on the inner circumference of the outer frame, the conventional structure was such that the hand is placed on the outer circumference, making it difficult to operate when opening and closing the door. It was hot.

In addition, it is generally configured so that it can be operated with the right hand, but in the conventional configuration, when the dryer D is installed on the floor as shown in Figure 1, or when used on the floor as shown in Figure 2. As shown, when the washing machine W is installed on a pedestal, the hands used to operate the washing machine W are reversed for the two ways of use. In the latter case, in consideration of operability, the device is used upside down with the operation panel section P facing down.

An object of the present invention is to eliminate the drawbacks of the above-mentioned prior art and provide a drying device with good operability.

The present invention achieves the above-mentioned object by integrally forming a tote portion with the outer frame of the door, which allows a hand to be placed on both the inner and outer sides of the outer frame.

Although the drying apparatus according to the present invention can be used either upright or inverted, one embodiment to be described below will be explained with the drying apparatus inverted.

An embodiment of the present invention will be described below based on the drawings. The overall configuration will be explained with reference to Figure 3.
Reference numeral 1 denotes a main body case, which is made by bending a steel plate into a rectangular tube shape and has a main body frame 3 having a front opening 3-1 on the front side, an upper frame 2 fixed to the upper surface of this main body frame 3 by welding, and a main body frame 3. Rear frame 4 fixed to the rear of 3
It is composed of. Reference numeral 5 indicates a plurality of legs attached to the main body frame 2, which are used when the drying device is placed in an upright position directly on the floor. Reference numeral 6 denotes an intake port formed in the main body frame 3, and 7 a louver detachably attached to the front surface of the intake port 6, which holds an intake filter 8 having an intake net on its surface. Reference numeral 9 denotes a front case made of synthetic resin that is airtightly attached to the back surface of the main body frame 3 with an annular packing 10, and an entrance 11 for clothing is formed therein. Reference numeral 12 denotes a door that is attached to the main body frame 3 with a hinge (not shown) so as to be openable and closable, and is composed of a transparent plate 13 and an outer peripheral frame 14 that supports the transparent plate 13. Further, this door 12 is kept airtight between it and the entrance 11 by the annular packing 10 described above. 15 is a warm air guide fitted into the outer periphery of the entrance/exit 11. As is clear from FIG. 4, the front case 9 has a heat source mounting window 16 on its upper part, a heat source mounting boss 17 provided on the upper side of the heat source mounting window 16, and a heat source hooking member 1.
8. A bearing ring portion 19 having two supporting bosses 19-1, a control component mounting portion 20, a door switch mounting portion 21, and a heat-resistant plate mounting hole are integrally provided below the outer periphery of the entrance/exit 11. That is, all the components necessary for the drying device can be attached to the front case 9, a sliding support piece that rotatably supports the drum can be attached, and the hot air guide 15 can be attached to the front case 9.
It can also be easily installed, and has a configuration that reduces the number of parts and improves ease of assembly. Further explaining FIG. 4, 22 is a heat source assembly, for example, as shown in FIG. 6, there is a positive resistance temperature characteristic element (hereinafter simply referred to as a heating element) 23 having a large number of honeycomb-shaped passages, and electrode plates that sandwich this. 2
4, 25, a screw 27 that commonly attaches these electrode plates 24, 25 to a heat source base 26, and a spring member 28 that applies appropriate contact pressure between the heating element 23 and both electrode plates. . The heating element 23 is made of a material whose resistance increases rapidly when the temperature exceeds a certain level, thereby avoiding the occurrence of a fire due to an abnormal temperature rise. The heat source assembly 22 is attached to the mounting window 16 by engaging the lower end with the hook 18 and fixing the upper part to the boss 17 with screws (not shown). Furthermore, since the heat source assembly 22 is attached to the mounting window 16 whose upper part is inclined toward the back, the air sucked in from the lateral end of the air intake port 6 flows laterally, increasing efficiency as shown in FIG. A space 31 that flows well toward the heat source assembly 22 is formed. That is, this space 31 is formed in a triangular shape when viewed from the side between the air intake port 6 and the heat source assembly 22, and this space 31 allows all the air sucked from the air intake port 6 to flow into the heat source assembly. This improves the overall drying efficiency. In addition, since the heating element 23 is installed with the upper part inclined backward, a large area of the heating element 2 can be obtained without increasing the vertical dimension.
3 can be used, which also increases the amount of air passing through the heating element 23.

Reference numeral 32 designates a heat-resistant plate that is fitted into the mounting hole 30 and is integrally formed with two supporting bosses 32-1. The heat-resistant plate 32 is made of a material with higher heat resistance than the front case 9, such as glass fiber-reinforced polypropylene, and has a heat deformation temperature of about 150°C. The front case 9 is generally made of polypropylene having a heat deformation temperature of about 90°C. By providing the heat-resistant plate 32 in a portion of the front case 9 near the heat source assembly 22 in this way, the problem of thermal deformation is eliminated, and the material of the front case 9 can be made cheaper. Further, since deformation of the front case 9 itself can be prevented, the airtightness between the front case and the drum can be maintained at the desired performance. Reference numeral 33 denotes a back cover that covers the heat source assembly 22, and is attached by engaging a hole 35 provided in the back cover 33 with a claw 34 provided at the upper end of the front case 9. The door switch mounting portion 21 is the seventh
It is constructed as shown in FIG. 8 and FIG. That is, the front case 9 is integrally formed with a through hole 36, a protruding fulcrum 37, a holding piece 39 having a claw portion 38, an opposing piece 40 located opposite the holding piece 39, and a pressing piece 41. . 42,
Reference numeral 43 denotes a door switch and its operation piece held in the space of the door switch mounting portion 21.
When installing the door switch 42 on the front case 9, first move the operating piece 43 to the fulcrum 3 as shown in FIG.
7, and then press the door switch 42 downward in the direction of the arrow. At this time, the claw 38 and the pressing piece 4
1 is pushed by the door switch 42 and deforms outward, but returns to its original position when the door switch 42 is completely pushed. At this time, the claw 38 and the pressing piece 41
presses the upper surface of the door switch 42 and restricts movement in the lateral direction, so the door switch 42 is securely held within the door switch mounting portion 21. 47
is a lower receiving surface that receives the lower surface of the door switch 42, and the door switch 42 is held between this lower receiving surface 47, the claw portion 38, and the pressing piece 41. 44 is door switch 4
Reference numeral 45 indicates a through hole bored in the main body frame 3 supporting the front case 9, and reference numeral 46 indicates an operator formed in the outer peripheral frame 14 of the door 12. Then, when the door 12 is closed, the operator 46 pushes up the operating piece 43 through the through hole 45, so the door switch 42 is closed and the drying apparatus becomes ready for operation. Next, when the exercise machine circuit and the heat generating circuit are closed, drying operation is performed. Referring again to FIG. 4, reference numeral 50 denotes a switch base on which mounting portions 51 and 52 are formed. A time switch 53 for controlling the operating time of the electric motor is attached to one attachment portion 51, and a changeover switch (not shown) for switching the amount of heat generated by the heat source assembly 22 is attached to the other attachment portion 52. And this switch base 50 has front case 9
The control box 20 is fitted into the control box 20 and fixed with screws or the like. 54 is a knob of the time switch 53. To explain Figure 3 again, 60
is a drum having a plurality of lifters 61 on its inner peripheral surface, and its front end is connected to the bearing ring portion 1 of the front case 9.
As a result, the rear end is rotatably supported around a fixed shaft 63 fixed to a support frame 62 fixed to the rear end of the main body frame 3. To explain in detail, drum 60
A cylindrical portion 64 is provided at the front end of the cylindrical portion 6.
4. The outer periphery is attached to the bearing boss 19-1 of the bearing ring part 19.
It is configured to be slidably supported by a synthetic resin bearing piece 65 attached to the. Moreover, the heat-resistant plate 32
Although not shown, a bearing piece is similarly attached to the supporting boss 32-1, and the latter bearing piece is mainly used when the apparatus is used in an upright position.
Furthermore, as is clear from FIG. 9, this bearing piece 65 is designed to sandwich an airtight felt 66 stretched on the inner surface of the bearing ring portion 19 when attached to the supporting boss 19-1. That is, with this configuration, the airtight felt 66 can be easily fixed to the bearing ring portion 19, compared to a case where the airtight felt 66 is simply fixed to the bearing ring portion 19 with an adhesive or the like.
Since it can be firmly fixed mechanically, peeling due to heat and humidity can be prevented. 67 is the bearing piece 65
This is a fixing hole into which a fixing claw 68 is fitted and fixed. 69
70 is a sliding piece made of felt or the like stretched on the inner surface of the cylindrical part 64, and 70 is a bearing piece 65 and a drum 60.
It is a sliding piece made of felt or the like and attached to the bearing piece 65. To explain the rear part of the drum 60, the rear plate 71 of the drum 60
A bearing 72 is fixed to the holder 73 by a holder 73. 74 is the rear plate 71 near the outer periphery of this bearing 72
The locking hole 75 provided in the holder is a plurality of exhaust holes provided outwardly. A filter 76 having a net 76-1 is removably attached to a mounting leg 77 on the inner surface of the drum 60 in these exhaust holes 75. 76-2 is an annular spring that snaps the filter 76 and the mounting leg 77 together. The mounting leg 77 is made of an elastic synthetic resin material, and has a locking claw 79 formed at its tip. Then, set the locking claw 79 to the first
After inserting the bearing 7 into the locking hole 74 as shown in Fig.
If the second holder 73 is attached to the rear plate 71 with the screws 80, the outer periphery of the holder 72 will restrict the locking claws 79 from moving inward and prevent them from coming off, even if the mounting legs 77 are made of synthetic resin. The filter 76 is securely fixed. Reference numeral 81 denotes a front casing of the exhaust vane 82 fixed to the support frame 62, and the fixed shaft 63 is firmly supported by a collar body 83. 84 is a vent provided in the front casing 81. A rear casing 85 covers the rear surface of the exhaust vane 82 and is connected to the front casing 81, and is provided with an exhaust port 86 opening rearward in a part of its outer periphery. Reference numeral 87 denotes a guide slope portion connected to the exhaust port 86 in order to improve exhaust performance. Reference numeral 88 denotes an exhaust joint fixed to the exhaust port 86, and the outlet faces an exhaust louver 89 provided on the rear frame 4. The exhaust vane 8
Reference numeral 2 is composed of a centrifugal blade made of synthetic resin or a full layer, and bearings are provided at both ends of the boss portion of the centrifugal blade, and the blade is rotatably supported around the fixed shaft 63. Furthermore, the rear end of the boss portion protrudes rearward from the opening 90 of the rear casing 85, and a belt groove 91 is formed in this protrusion. Furthermore, a belt 92 driven by an electric motor, which will be described later, is hung in this belt groove 91. 93 is the exhaust port 75 of the rear plate 71
A seal cylinder is made of felt material and is attached to the rear plate 71 to keep the space between the front casing 81 and the vent 84 of the front casing 81 airtight. The details of this mounting configuration are as shown in FIGS. 11 and 12.
To explain these figures, 94 is the rear plate 7.
The seal cylinder frame attached to 1 has an outer circumferential wall 95 and a cut-and-raised inner circumferential piece 96. The outer circumferential wall 95 has locking claws 97 cut and raised inward, and the inner circumferential piece 96 has locking claws 98 on both ends thereof bent slightly outward. Then, the outer peripheral wall 95 and the inner peripheral piece 96
By inserting the end portion of the seal tube 93 between them and bending the inner peripheral piece 96 outward as shown in FIG. 11, the seal tube 93 is held between the two. At this time, the locking claw 9
7 and 98 bite into the seal tube 93, even if a considerable external force acts on the seal tube 93, the connection between the seal tube 93 and the seal tube frame 94 will not fail. Sho 1
Figure 2 shows the state before installation.

Reference numeral 100 is fixed to a mounting leg 101 extruded from the main body frame 2 by an electric motor. 102 is the capacitor, 103 is a motor shaft, and a pulley 104 is attached to one end of the shaft, and a pulley 105 is attached to the other end. A drum drive belt 106 is wound between the outer periphery of the drum 60 and the pulley 104. A support frame 107 is fixed to a motor board 108 and supports a tension pulley 109. This tension pulley 109 applies a predetermined tension to the drum drive belt 106 using a tension spring 110. 111 is a motor cooling fan integrated with the pulley 105; 112;
is a fan belt wound between the pulley 105 and the belt groove 91 integrated with the exhaust vane 82. FIG. 13 shows the handle portion of the door 12. To explain this drawing, 13 and 14 are the above-mentioned transparent plate and its outer peripheral frame. The outer peripheral frame 14 is made of synthetic resin, and has handle portions 113 and 114 projecting left and right on the front surface opposite to a door hinge (not shown). The reason why the hand grip portions are provided on the left and right sides is that the hand can be placed on the inner periphery of the frame as described above, and the device is used in an upright or inverted position. In other words, if the hand grip portions are provided on the left and right sides, the hand can be placed on the inner periphery of the frame no matter which side is used, and in either case, the hand can be operated with the right hand. 115 is a permanent magnet for fixing the door 12 to the main body case 1, and opposing ribs 116, 11
7 with pins 118. 119 is a through hole provided in the permanent magnet 115, and the pin 1
18 is inserted, and a circular retaining ring 120 is fitted into the protrusion of the pin 118. Also, if a rib 121 is provided at this time, the permanent magnet 115 can be attached to this rib.
Since the pin 118 can be inserted with the pin 118 placed thereon, work efficiency is improved. Ribs 122 and 123 are connected to the handles 113 and 114, and form a bag-like space for the handles. Furthermore, this shape makes it possible to divide the mold into the upper and lower parts on the drawing, making molding very simple, and since the rear of the bag-shaped space on the side of the handle 114 is shielded by the transparent plate 13, it is easy to improve the appearance and sealing. There is no particular problem in terms of gender.

FIG. 14 shows an improved shape of the hot air guide 15. The warm air guide 15 is provided with an inner cylinder 124 so that a cooling passage 125 is formed between the outer peripheries of the inlet and outlet ports 11 . Reference numerals 126 and 127 are through holes that are bored in the front frame 3 and the front case 9, respectively, and communicate with the cooling passage 125. Then, when the exhaust vane 82 is rotated, external air is sucked in through the through holes 126 and 127, and the cooling passage 12
5 into the drum 60. At this time, since the clothing entrance/exit 11 is cooled by the air passing through the cooling passage 125, there is no danger of getting burned even if your hand touches the clothing entrance/exit 11. Hot air from the heat source assembly 22 is drawn into the drum 60 through the outer periphery of the inner cylinder 124.

Next, the operation will be explained. When the washed and dehydrated laundry is put into the drum 60 and the door 12 is closed, the door switch 4 is activated by the operator 46 of the door 12.
2 is closed. Under this condition, when the time switch 53 is set to a predetermined time, the electric motor 1
Current is supplied to the heating element 23 and the heating element 23. At this time, the amount of heat generated by the heating element 23 is changed over by a changeover switch depending on the amount of laundry. This switching is actually performed by changing the number of heating elements 23. When the electric motor 100 rotates, the pulley 10
4. The drum 60 is rotated at low speed by the belt 106. The rotational speed at this time is usually 50/min, which is such that the clothes are pulled up by the lifter 61 and dropped from above. Also, at the same time, pulley 10
5. The exhaust vane 82 is rotated at high speed by the fan belt 112. By rotating the exhaust vane 82, external air is sucked in through the intake port 6, is heated by the heating element 23, and then passes through the hot air guide 15 and reaches the inside of the drum 60. Clothes are repeatedly pulled up and dropped inside the drum 60, and the hot air removes moisture from the clothes, passes through the filter 76, the exhaust hole 75, and the vent 84, and reaches the inside of the fan casing. Further, the humid air discharged by the exhaust vane 82 is sent to the exhaust port 86, the exhaust joint 88, and the exhaust louver 8.
9 to the outside from the back of the drying device. When the time switch 53 is turned off, the electric motor 10
0, the power supply to the heating element 23 is cut off, and the drying operation is stopped. Then open the door 12 and remove the clothes drum 6.
0 is taken out, and the series of operations is completed. At this time, since the door switch 42 is opened, the drum 60 will not rotate unexpectedly, making it safe. Furthermore, even if the door 12 is opened inadvertently during the drying operation, the drum 60 will stop, making it safe.

The features and effects of the configuration of one embodiment of the present invention are as follows. First, Figure 4,
As is clear from Fig. 5, all the components that should be attached to the front part of the drum dryer are all assembled into the synthetic resin front case 9, which simplifies the structure and ensures airtightness. This also improves assembly efficiency. Furthermore, by attaching the heat source assembly 22 to the inclined heat source mounting window 16 of the front case 9, a large heating element 23 can be installed in a small space, and the amount of air heated by the heating element 23 increases. Furthermore, a heat source installation window 16
Since the drum 60 is inclined, a large amount of air can be supplied into the drum 60, and the drying time can be shortened accordingly.

In addition, a heat-resistant plate 3 is placed directly below the heat source assembly 22.
2 to prevent thermal deformation of the front case 9, the front case can be made of a material with low heat resistance. Further, a supporting boss 32-1 is integrally provided on this heat-resistant plate 32, and this supporting boss 32-1 is integrally provided with the supporting boss 32-1.
1 is provided with the bearing piece 65, the number of parts is reduced.

Also, as shown in Fig. 9, supporting bosses 19-1 and 3
Since the airtight felt 66 is held between the bearing pieces 65 and 2-1 when the bearing piece 65 is attached to the bearing piece 2-1, the airtight felt 66 is more securely fixed than when the airtight felt 66 is simply bonded with adhesive. This type of device is used under adverse conditions such as high temperature and high humidity, but if configured as described above, there is no need to worry about peeling, etc., and the desired airtight performance can be maintained for a long period of time.

Also, as shown in FIG. 7, the door switch 42
When the front case 9 is installed, it is held elastically by several holding pieces provided on the front case 9, so no tools are required and the installation work becomes extremely easy.

Furthermore, as shown in FIG. 10, the filter 76 can be attached by simply engaging the attachment leg 77 with the locking hole 74, and since the movement of the attachment leg 77 is restricted by the outer periphery of the holder 73, the attachment leg 77 can be attached easily. Never leave.

In addition, as shown in FIG. 11, the seal cylinder 93 is held between locking claws 97 and 98 that are bent integrally with the seal cylinder frame 94, so that the seal cylinder 93 is securely fixed, and the seal cylinder 93 can be fixed easily. Dedicated parts become unnecessary.

In addition, as shown in Figure 13, hand grips are provided on both the left and right sides, so the door can be opened and closed using the inner periphery of the door frame.Also, even when the dryer is used upright or upside down, the door 12 can be opened and closed with the right hand. Can be opened and closed. Further, the permanent magnet 115 can be easily attached using the pin 118.

Furthermore, if a cooling passage 125 is provided around the clothing entrance/exit 11 as shown in FIG.
It is safe and will not cause burns even if your hands touch it.

As explained above, according to the present invention, it is possible to provide a drying device with very good operability when opening and closing the door.

[Brief explanation of drawings]

Fig. 1 shows an apparatus to which the present invention is applied in an upright position on the floor, Fig. 2 shows an inverted state on a stand, and Figs. 3 to 13 show an embodiment of the present invention. Fig. 3 is a vertical sectional view of the entire device in an inverted state, Fig. 4 is an exploded perspective view of the front case section when viewed from the back, and Fig. 5 is an exploded perspective view of the front case section when viewed from the front. , Fig. 6 is a longitudinal sectional view of the heat source assembly, Fig. 7 is a perspective view of the door switch mounting part, Fig. 8 is a sectional view of the door switch installed, and Fig. 9 is a longitudinal sectional view of the airtight felt mounting part. , FIG. 10 is a longitudinal sectional view of the filter mounting part, FIG. 11 is a longitudinal sectional view of the seal cylinder mounting part, FIG. 12 is a perspective view, and FIG. 13 is a sectional view of the handle part.
FIG. 14 shows another embodiment, and is a longitudinal sectional view of a cooling passage section. 1...Main case, 9...Front case, 10...
Annular packing, 11... Entrance/exit, 12... Door, 1
5... Warm air guide, 16... Heat source mounting window, 19... Bearing ring, 20... Control box, 21... Door switch mounting part, 22... Heat source assembly.

Claims (1)

[Scope of Claims] 1. In a door for opening and closing an inlet of a material to be dried in a drying device, the door is constituted by a transparent plate and a synthetic resin outer frame provided so as to be applied to the outer periphery of the transparent plate, and the outer frame is provided with an inner handgrip and an outer handgrip that extend inward and outward along the door from the partition wall that stands approximately perpendicular to the transparent plate, and from both sides of the inner handgrip. A drying device characterized in that a bag-like space is formed with ribs extending toward a transparent plate.