Drying device

Abstract

Provided is a drying device that makes it easy to incorporate a heating means and a blowing means.　A dryer according to the present invention comprises: a main body that accommodates a casing (23) accommodating a blowing means (21) having a fan (211) and a drive unit (213) that drives the fan (211), and a heating means (22) that heats air sent out by the blowing means (21); and a discharge part that discharges hot air generated by the main body. The casing (23) supports the blowing means (21) and the heating means (22).

Description

drying equipment

[0001] The present invention relates to a drying device that discharges heated air.

[0002] A drying device has been disclosed that includes an air intake, a blowing means, a heating means for heating the air drawn in through the air intake, and a discharging means for discharging the air heated by the heating means onto the material to be dried (for example, Patent Document 1).

[0003] JP 2018-42885 A

[0004] The drying device of the above technology has a problem in that at least the air blowing means and the heating means must be separately installed in the housing, which makes the installation process complicated. The present invention aims to provide a drying device that makes it easy to install the heating means and the air blowing means.

[0005] The drying device of the present invention comprises a main body portion that houses a casing that houses a blowing means having a fan and a drive portion that drives the fan, and a heating means that heats the air blown out by the blowing means, and a discharge portion that discharges warm air generated in the main body portion, and the casing supports the blowing means and also supports the heating means.

[0006] According to the above configuration, it is possible to easily incorporate the heating means and the air blowing means.

[0007] 1 is a schematic perspective view of a drying device according to an embodiment, with a discharge unit housed therein, as viewed from above; FIG. 2 is a schematic perspective view of a drying device according to an embodiment, with a discharge unit housed therein, as viewed from below; FIG. 3 is a schematic perspective view of a drying device with the discharge unit removed, as viewed from above; FIG. 4 is a schematic perspective view of a drying device with the discharge unit removed, as viewed from below; FIG. 5 is a perspective view of a drying device with the upper wall of the main body removed, as viewed from above; FIG. 6 is a perspective view of the main body in a disassembled state, as viewed from above; FIG. 7 is a perspective view of the main body in a disassembled state, as viewed from below; FIG. 8 is a perspective view of a cross section of a hot air supply unit, as viewed from above, with half of the casing missing; FIG. 9 is a perspective view of a cross section of a hot air supply unit, as viewed from above, with one-quarter of the casing missing; FIG. 10 is a perspective view of the casing in a disassembled state, as viewed from above; FIG. 11 is a perspective view of the casing in a disassembled state, as viewed from below; FIG. 12 is a cross-sectional view of a hot air supply unit; and FIG. 13 is a diagram of the temperature sensor and its surroundings. 1 is a perspective view of the nozzle in a disassembled state as viewed from above. FIG. 2 is a perspective view of the nozzle in a disassembled state as viewed from below. FIG. 3 is an enlarged perspective view of the periphery of the first restricting portion. FIG. 4 is an enlarged perspective view of the periphery of the second restricting portion. FIG. 5 is an enlarged perspective view of the first supported portion of the first support member. FIG. 6 is an enlarged view of the periphery of the second supported portion of the second support member. FIG. 7 is an enlarged view of the periphery of the first supported portion of the first support member in a closed state. FIG. 8 is an enlarged view of the periphery of the first supported portion of the first support member in an open state. FIG. 9 is an enlarged view of the periphery of the second supported portion of the second support member in a closed state. FIG. 10 is an enlarged view of the periphery of the second supported portion of the second support member in an open state. FIG. 11 is a diagram illustrating the rotational operation of the first support member.

[0008] <Embodiment>

[0009] 1. Overview The schematic structure of a drying device X according to an embodiment will be described with reference to FIGS. 1 to 3. Note that when referring to FIG. 1, this includes FIGS. 1A and 1B, and the same applies to FIGS. 2, 6 to 8, and 11 to 13. The drying device X dries items to be dried, such as bedding (e.g., futons) and shoes. The drying device X includes a main body 1 that houses a hot air supply unit 20 that supplies hot air, and a discharge section 5 that discharges the hot air generated by the main body 1. The discharge section 5 includes a nozzle 51 and a hose 57 that can be bent (flexed) and stretched. The discharge section 5 can accommodate the nozzle 51 in a storage section 102 of the main body 1 by bending the hose 57, as shown in FIG. 1. When in use, the nozzle 51 is removed from the storage section 102, as shown in FIG. 2. Each section will be described below.

[0010] 2. Main Unit As shown in FIG. 3 , the main unit 1 includes a hot air supply unit 20, a circuit unit 30, and an operation unit 40 housed in a housing 10. The main unit 1 houses the nozzle 51 so that the hot air supply unit 20 and the nozzle 51 are aligned in the housed state, and the first support member 53 of the discharge unit 5 faces (is exposed to) the outside in the alignment direction. Note that the alignment direction is the front-to-back direction in FIG. 1 , and the rear side where the nozzle 51 is located in the housed state is one side of Invention 2. Specifically, in the housed state described above, a bend occurs between both ends of the hose 57, and the hose 57 extends to one side in a direction perpendicular to the alignment direction of the hot air supply unit 20 and the nozzle 51 in the housed state, then folds back midway and bends to extend to the other side. In other words, the hose 57 is bent in a U-shape. Furthermore, since the housing 10 is open to the outside on the other side in the direction perpendicular to the arrangement direction of the hot air supply unit 20 and the nozzle 51 in the housed state, when the hose 57 is housed in the housing 10 in the bent state described above, the hose 57 faces the outside.

[0011] (1) Housing The housing 10 accommodates the hot air supply unit 20, the circuit unit 30, the discharge unit 5 when housed, and a circuit board 43 with the operation means 41 and display means 42 of the operation unit 40 exposed to the outside of the housing 10. The housing 10 is box-shaped. The side on which the operation unit 40 is located is the front, the side opposite the front is the rear, the side from which the power cord 35 extends on the rear is the bottom, the side on which the hose 57 of the discharge unit 5 when housed is visible (see FIG. 1A ) is the left side, and the side on which the air intake 13 a is located is the right side. As shown in FIG. 1 , the housing 10 has a front wall 11, a rear wall 12, a right wall 13, an upper wall 14, and a lower wall 15. The housing 10 has openings 16 in a portion corresponding to the left wall and in a portion extending from the center (center toward the left) of the rear wall 12 to the right side, and the discharge unit 5 is accommodated in and out of the housing 10 using the openings 16. Here, the front wall 11, rear wall 12, right wall 13, and bottom wall 15 are integrally molded to form the housing body. As shown in Figures 3 to 5, the housing 10 has a partition wall 17 that divides the interior into an accommodation section 101 that accommodates (most of) the hot air supply unit 20, circuit unit 30, and operation unit 40, and an accommodation section 102 that accommodates the discharge section 5. For convenience, the accommodation section for the hot air supply unit 20, etc. will be referred to as the "unit accommodation section," and the accommodation section for the discharge section 5 will be referred to as the "discharge section accommodation section," to distinguish between the two accommodation sections.

[0012] The front wall 11 has through-holes 11a for the operating means 41 and display means 42 of the operation unit 40, protrusions 11b for supporting the operation unit 40, and boss screws 11c for fixing the operation unit 40. The rear wall 12 has through-holes 12a for the power cord 35 and latching portions 12b for latching the latching portion 528 of the nozzle 51 housed in the discharge portion housing 102 (see FIG. 1B). As shown in FIG. 4, the latching portions 12b are formed as notches. The right wall 13 has an air intake 13a and a pair of grooves 13b for holding the filter 103 covering the air intake 13a on one side in the front-to-rear direction. The hot air supply unit 20 and the housed nozzle 51 are aligned in the front-to-rear direction, and the one side in the front-to-rear direction is the side where the hot air supply unit 20 is located, which is the front side in this case. The housing 10 is also open to the outside on the other side in the left-right direction perpendicular to the front-rear direction, which in this case is the left side. The upper wall 14 has an upper connecting portion (boss screw) 14a for connecting to the lower wall 15 (housing body), a partition wall portion 14b that separates the unit accommodating portion 101 from the discharge portion accommodating portion 102, and support portions 14c and 14d that position and support the hot air supply unit 20. The support portions 14c and 14d are formed of plate-like portions (ribs) extending downward, with the support portion 14c supporting the blower means 21 side of the hot air supply unit 20 (the right side in the left-right direction), and the support portion 14d supporting the mounting body 26 side of the hot air supply unit 20 (the left side in the left-right direction). The lower wall 15 has a lower connecting portion (boss hole) 15a for connecting to the upper wall 14, support portions 15b and 15c for positioning and supporting the hot air supply unit 20, and a screw hole 15d (see FIG. 3) for securing a holder 36 that covers and holds the power cord 35. The support portions 15b and 15c are formed of plate-like portions (ribs) extending upward. The support portion 15b supports the blower 21 side (right side in the left-right direction) of the hot air supply unit 20, and the support portion 15c supports the mounting body 26 side (left side in the left-right direction) of the hot air supply unit 20. The boss screw, boss hole, and boss hole are formed by a boss and a screw hole (hole) or hole formed in the boss. The partition wall 17 and the partition wall portion 14b of the upper wall 14 are arranged to form a unit housing portion 101 on the front side and a discharge portion housing portion 102 on the rear side in the front-to-rear direction.In other words, the partition wall 17 and the partition wall portion 14b are provided at a central position in the front-rear direction, perpendicular to the front-rear direction. As a result, the unit accommodating portion 101 and the discharge portion accommodating portion 102 are provided side by side in the front-rear direction. To accommodate the hose 57 of the discharge portion 5 on the left side, the partition wall 17 and the partition wall portion 14b extend in the left-right direction from the right end position of the bottom wall 15 in the left-right direction to a position shifted to the right of the left end by the length of the hose 57. The partition wall 17 has an air intake 17a on the right side in the left-right direction and a pair of grooves (not shown) for holding a filter 104 that covers the air intake 17a.

[0013] (2) Hot Air Supply Unit This will be explained using FIG. 6 . The hot air supply unit 20 includes at least a blower 21 having a fan 211 and a drive unit (motor) 213 for driving the fan 211, and a heater 22 for heating the air blown by the blower 21. A plurality of blades serving as the fan 211 are provided around the rotational centerline of the drive unit 213. The blower 21 may also be wrapped around a sound-absorbing or vibration-damping material. The hot air supply unit 20 here includes a casing 23 that houses the blower 21 and the heater 22, a temperature sensor 24 (see FIG. 8 ) attached to the casing 23, a connector 25 for connecting to a hose 57, and an attachment 26 for attaching the connector 25 to the casing 23 in a rotatable or fixed (non-rotatable) manner. The connector 25 is attached to the casing 23 after being connected to the hose 57, and may therefore be a part of the hose 57.

[0014] (2-1) Casing As shown in FIGS. 6 and 7 , the casing 23 is cylindrical and extends in the direction of the rotation axis of the blower 21 (hereinafter referred to as the "rotation axis direction"), and includes a semi-cylindrical first member 231A and a semi-cylindrical second member 231B extending along the rotation axis direction (cut along an imaginary plane including the rotation axis). The first member 231A and the second member 231B are fixed (coupled) with, for example, screws. The casing 23 has an inlet opening 232 through which air flows into the casing 23 and an outlet opening 233 through which air is exhausted. Here, the inlet opening 232 is located on one side of the rotation axis direction, and the outlet opening 233 is located on the other side of the rotation axis direction. In FIG. 7 , the casing 23 is designated by the reference numeral "A" when it is composed of the first member 231A, and by the reference numeral "B" when it is composed of the second member 231B. For example, in the inlet opening 232, the portion formed by the first member 231A is labeled "232A," and the portion formed by the second member 231B is labeled "232B." The casing 23 integrally supports the blower 21 and the heating unit 22 between the inlet opening 232 and the outlet opening 233. Here, the heating unit 22 is disposed closer to the outlet opening 233 than the inlet opening 232, and the blower 21 is disposed closer to the inlet opening 232 than the outlet opening 233. Preferably, the heating unit 22 is disposed closer to the outlet opening 233 than the inlet opening 232, and the blower 21 is disposed closer to the inlet opening 232 than the outlet opening 233. This makes it easier to incorporate the casing 23 into the housing 10 in this embodiment than in the conventional technology in which a casing housing a blower and a casing housing a heating unit are separately incorporated into the housing. For example, it is necessary to assemble the casing into the housing so that there are no gaps between the casings to prevent pressure loss, but with the configuration of this embodiment, such a necessity does not arise when assembling the casing 23 with respect to the blower means 21 and the heating means 22. The inlet-side opening 232 is provided so that its center line, which passes through its center and extends in the direction of the rotation axis, intersects with the opening plane of the outlet-side opening 233. As a result, air flowing in from the inlet-side opening 232 flows smoothly (linearly) toward the outlet-side opening 233 and flows out from the outlet-side opening 233.In this example, the inlet opening 232 and the outlet opening 233 are circular. The opening area (diameter) of the outlet opening 233 is larger than the opening area (diameter) of the inlet opening 232. This allows the air sent out from the blower 21 to hit a wide area of ​​the surface of the heating means 22, resulting in sufficient heating. In the casing 23, the portion supporting the blower 21 is cylindrical, while the portion supporting the heating means 22 is rectangular. The casing 23 has an outlet 234 for leading the connection terminal 223 of the heating means 22 to the outside, and a recess 235 for the temperature sensor 24.

[0015] (2-2) Air Blowing Means This will be explained using FIG. 6 . The air blowing means 21 draws air from the air intake 13a of the main body 1 and sends it toward the heating means 22. The air blowing means 21 has a fan 211 on the outer periphery of the motor 213, and is integrated into a unit. The motor 213 can be a DC motor (including brushed and brushless motors) or an AC motor. Here, a brushless motor (BLDC) is used, which allows for high output and energy savings. The motor 213 is arranged so that its rotation axis coincides with or is close to the central axis of the casing 23. The air blowing means 21 is arranged upstream of the heating means 22 in the direction of its rotation axis. In other words, the heating means 22, the air blowing means 21, the inlet opening 232 of the casing 23, and the air intake 13a of the housing 10 are arranged in this order from downstream to downstream in the direction of the rotation axis. The blower 21 is arranged so that its rotation axis intersects with the opening plane of the outlet opening 233. This allows the blower 21 to suck air through the suction port 213a and discharge the air smoothly (linearly) from the outlet opening 233. The blower 21 is arranged so that its suction port 213a faces the inlet opening 232 of the casing 23. This allows air flowing in from the inlet opening 232 to travel a short path toward the suction port 213a of the blower 21. The radial width (diameter) of the drive unit (motor) 213 is smaller than the opening area of ​​the outlet opening 233. More specifically, when viewed from the direction of the rotation axis, the outer circumferential edge of the motor 213 fits within the opening area of ​​the outlet opening 233. This makes it easier for negative pressure to be generated in the inlet opening 232, thereby improving suction performance.

[0016] (2-3) Heating Means This will be explained using FIG. 6 . The heating means 22 includes a heater 221 and a connection terminal 223 for supplying power to the heater 221. When viewed from the direction of the rotation axis, the heater 221 has a rectangular or similar shape. The heater 221 may be a ceramic heater (PTC heater) or the like. As shown in FIG. 8A , the temperature sensor 24 that detects the temperature of the heater 221 is fitted into a recess 235 in the casing 23. The recess 235 is recessed toward the heater 221 to bring the heater 221 and the temperature sensor 24 closer to each other. Instead of the recess 235, the temperature sensor 24 may be exposed inside the casing 23 through a through-hole. In this case, the temperature sensor 24 may be in contact with or spaced apart from the heater 221. The temperature sensor 24 may be, for example, a bimetal, a thermal fuse, a thermistor, or any other suitable sensor. As shown in FIG. 8A , the heating means 22 is biased toward the temperature sensor 24 by an elastic body 27. This allows the temperature sensor 24 to easily approach the heater 221, enabling highly accurate temperature detection. The temperature sensor 24 is supported by a support 241 attached to the casing 23, as shown in FIG. 8B . The elastic body 27 is formed, for example, by curving a plate material. The elastic body 27 has at least a base portion 271 disposed in the casing 23 and an extension portion 273 that bends at an acute angle from the base portion 271 and extends toward the heater 221, with the extension portion 273 being configured to be elastically deformable in the biasing direction. The elastic body 27 is supported in a positioned state within the recess 236 of the casing 23. Specifically, the base portion 271 is positioned by abutting at least one of one end and the other lengthwise end and one end and the other widthwise end against the inner wall constituting the recess 236, and the elastic body 27 is housed in a state where the extension portion 273 is in contact with the heater 221. The temperature sensor 24 and the elastic body 27 face each other with the heater 221 in between. The casing 23 also functions as a casing that supports the heater 221 by abutting against it.

[0017] (2-4) Connector As shown in Figures 6 and 7, the connector 25 has a cylindrical shape with a bottom, and has a spiral ridge 253 formed on the inner circumferential surface of a tubular portion 251, and a through hole 257 formed in a bottom portion 255. The end of the hose 57 is inserted into the tubular portion 251 and supported by the ridge 253. The through hole 257 in the bottom portion 255 provides a filtering function. The hose 57 may be detachable from the connector 25. The tubular portion 251 of the connector 25 is inserted into the tubular portion 237 at the other end (on the outlet opening 233 side) of the casing 23 in the rotational axis direction.

[0018] (2-5) Mounting Body As shown in Fig. 6, the mounting body 26 has a recess 263 having an opening 262 in a bottom 261, and a protruding portion 264 that protrudes outward from the edge of the recess 263 opposite the bottom 261. The mounting body 26 is fixed to the casing 23 with screws 269 (see Fig. 3) in a state in which the recess 263 covers the cylindrical portion 251 of the connecting body 25 that protrudes from the casing 23 in the rotation axis direction, and the peripheral portion of the opening 262 of the bottom 261 abuts against the end face of the cylindrical portion 251 of the connecting body 25. The screws 269 are inserted through fixing portions (through holes) 265 of the protruding portions 264 of the mounting body 26 and screwed into fixing portions (threaded holes or screw holes) 238 of the casing 23.

[0019] (3) Circuit Unit The circuit unit 30 receives power from a commercial power source via a power cord 35 and generates drive power to drive the hot air supply unit 20, the temperature sensor 24, the operation unit 40, etc. As shown in FIGS. 3 to 5 , the circuit unit 30 includes a plurality of electronic components 31 and a circuit board 32 on which the plurality of electronic components 31 are mounted, and is housed in the unit housing portion 101 of the housing 10. The circuit board 32 is fixed to the bottom wall 15 using screws or the like. The circuit unit 30 is disposed between the hot air supply unit 20 and the bottom wall 15, and as shown in FIG. 4 , the electronic components 31 are disposed on both ends of the circuit board 32 in the front-to-rear direction so as not to interfere with the hot air supply unit 20. Because the circuit unit 30 is disposed outside the casing 23 that houses the heating means 22, it is less susceptible to the heat from the heating means 22. Furthermore, since the circuit unit 30 is provided on the flow path of the air sucked from the air intake 17a of the partition wall 17 by the air blowing means 21, the circuit unit 30 is configured to be able to be cooled by the air flowing along the flow path.

[0020] (4) Operation Unit As shown in FIGS. 3 to 5 , the operation unit 40 has an operation means 41 and a display means 42 mounted on a board 43. The board 43 is fixed to the front wall 11 with the operation means 41 and the display means 42 fitted into the through-holes 11a in the front wall 11. The operation unit 40 has an operation control unit for controlling the operation of at least the air blowing means 21, in this case, the hot air supply unit 20. The operation control unit is composed of electronic components and is mounted on the board 43. As shown in FIGS. 4 and 5 , the board 43 is provided standing upright from the bottom wall 15 or along the front wall. When the drying device X is viewed from above, the nozzle 51 housed in the discharge unit housing 102, the air blowing means 21 or the hot air supply unit 20, and the operation control unit (board 43) are arranged in this order in a direction perpendicular to the rotation axis direction of the hot air supply unit 20 (in this case, the front-rear direction). This allows the space inside the housing 10 to be used effectively, and the discharge section 5, the hot air supply unit 20, and the operation control section to be housed compactly.

[0021] 3. Discharge Unit As shown in FIG. 2 , the discharge unit 5 has a hose 57 connected to the main body 1 so as to communicate with the air blowing means 21, and a nozzle 51 connected to the hose 57. The hot air generated by the main body 1 is discharged from the discharge port 511 of the nozzle 51. One end of the hose 57 is connected to the hot air supply unit 20, and the other end of the hose 57 is connected to the nozzle 51. The opening at one end of the hose 57 is an inlet to the hose 57, and the opening at the other end is an outlet from the hose 57. The discharge unit 5 is bent so that the hose 57 extends to one side in the left-right direction, folds back midway, and extends to the other side. In other words, the hose 57 is curved in a "U" shape, and the nozzle 51 is accommodated in the discharge unit accommodation portion 102 of the main body 1 with the nozzle 51 parallel to the rotational axis of the main body 1. In other words, the nozzle 51 is cylindrical overall and accommodated with its cylindrical axis parallel to the rotational axis. In this state (housed state), the outlet 511 of the nozzle 51 faces the right wall 13 that constitutes the outlet housing portion 102. Note that, since the nozzle 51 is inserted into the outlet housing portion 102 from the left side, the right wall 13 that faces the outlet 511 can also be said to be the bottom of the outlet housing portion 102.

[0022] (1) Hose The hose 57 is bendable and stretchable. The opening shape and opening area of ​​the inlet of the hose 57 are the same as those of the outlet. The opening shape is circular. The inlet of the hose 57 faces the outlet opening 233 of the hot air supply unit 20, and the rotation axis of the blower means 21 intersects with the opening plane of the inlet. Here, an imaginary line of the rotation axis passes through the center of the inlet of the hose 57 or its vicinity. This allows the hot air generated by the hot air supply unit 20 to smoothly flow into the hose 57. The inlet (opening area) of the hose 57 is larger than the suction port 213a (opening area) of the hot air supply unit 20 of the blower means 21. This allows the hot air to be blown out over a wide area.

[0023] (2) Nozzle As shown in Fig. 2, the nozzle 51 has a nozzle main body 52 having one end, into which hot air from the main body 1 flows, on one side in the first direction and an outlet 511 at the other end on the other side in the first direction, and a support member 53 supported by a first support portion 521 of the nozzle main body 52. ​​The nozzle 51 here has a support member 54 supported by a second support portion 523 of the nozzle main body 52. ​​For the sake of convenience, the support member 53 will be referred to as a first support member 53 and the support member 54 will be referred to as a second support member 54 to distinguish the support members.

[0024] (2-1) Nozzle Body The nozzle body 52 is cylindrical, and the other end of the hose 57 is connected to one side in the first direction. Specifically, as shown in FIG. 14 , the other end of the hose 57 is fixed on the other side of the end on the one side in the first direction. The extension direction of the cylindrical axis of the nozzle body 52 (also referred to as the "cylindrical axis direction") coincides with the first direction. This allows the hose 57 to be longer overall, even if the length of the hose exposed from the main body 1 is the same, compared to when the hose 57 is connected to one side of the nozzle body 52. ​​The hose 57 is fixed in the first direction when both end surfaces in the first direction of the connecting body 553 abut against or are close to an extension portion 551 a extending from the inner surface of the nozzle body 52 toward the cylindrical axis and an extension portion 555 a of the attachment body 555, as shown in the enlarged view of FIG. 14 .

[0025] 9 and 10 , the nozzle body 52 has a first support portion 521 that rotatably supports the first support member 53, a first restricting portion 522 that restricts the rotation of the first support member 53, a second support portion 523 that rotatably supports the second support member 54, a second restricting portion 524 that restricts the rotation of the second support member 54, a first recess 525 that corresponds to the movable range of the first support member 53, a second recess 526 that fits the second support member 54, and a locking portion 528 that locks with the locked portion 12b of the main body 1 when the nozzle 51 is housed in the discharge portion housing portion 102 of the main body 1. Note that the first recess 525 and the second recess 526 are not essential components. Furthermore, the steps 525a, 525b, 526a, and 526b may be convex portions based on the flat portions 525c and 526c.

[0026] The rotation axis of the first support member 53 extends in the width direction perpendicular to the first direction (cylinder axis direction) and the up-down direction, based on the state in which the first support member 53 is positioned at the upper side of the nozzle body 52. ​​The state in which the first support member 53 is close to the nozzle body 52 is referred to as a closed state (or first state), and the state in which the first support member 53 is separated from the nozzle body 52 is referred to as an open state (or second state). The direction of rotation from the closed state to the open state is referred to as an opening direction, and the direction of rotation from the open state to the closed state is referred to as a closing direction. In other words, when the discharge part 5 is inserted between a mattress (as an example of an object to be dried) and a comforter, the direction away from the mattress is referred to as the opening direction, and the direction toward the mattress is referred to as the closing direction. The first support part 521 is provided on the other end side in the first direction. The first support part 521 is composed of a fitting hole or fitting hole into which the first supported part (convex part) 533 of the first support member 53 fits. The first support portions 521 are provided on flat portions 525c of the first recesses 525 that are on the peripheral wall 527 that constitutes the nozzle body 52 and that face each other in the width direction.

[0027] 9, the first recess 525 is composed of a flat portion 525c formed in the rotation region of the extension portion 532 of the first support member 53, a closing-side step 525a formed on the edge of the rotation region on the closing side, and an opening-side step 525b formed on the edge of the rotation region on the opening side. In other words, the first recess 525 is formed so that at least the region between the position of the closing-side edge 532b on the closing side of the extension portion 532 of the first support member 53 in the closed state and the position of the opening-side edge 532a on the opening side of the extension portion 532 of the first support member 53 in the open state is recessed.

[0028] The first restricting portion 522 is provided to protrude along the rotational trajectory of the first support member 53 (extension portion 532), protrudes outward in the width direction, and is retractable in the width direction. In this embodiment, the first restricting portion 522 is provided on the flat portion 525c of the first recess 525. As shown in FIG. 11A , the first restricting portion 522 is formed, for example, inside a "U"-shaped through groove 522a. The first restricting portion 522 has a base end portion 522b and an abutting portion 522c opposite the base end of the base end portion 522b, and is configured to be elastically deformable inward in the width direction. The abutting portion 522c protrudes outward in the width direction beyond the base end portion 522b. As a result, the abutment portion 522c abuts against the open end edge 532a of the extension portion 532 of the first support member 53 in the closed state as shown in Figure 12A, and against the closed end edge 532b of the extension portion 532 of the first support member 53 in the open state as shown in Figure 12B, thereby restricting the rotation of the first support member 53.

[0029] The rotation axis of the second support member 54 extends vertically based on the state in which the first support member 53 is positioned above the nozzle body 52. ​​The state in which the second support member 54 is close to the nozzle body 52 is referred to as a closed state (or first state), and the state in which it is separated from the nozzle body 52 is referred to as an open state (or open state). The rotation direction from the closed state to the open state is referred to as an open orientation, and the rotation direction from the open state to the closed state is referred to as a closed orientation. Note that when the discharge portion 5 is inserted between a mattress (as an example of an object to be dried) and a comforter, the second support member 54 rotates along the mattress, so the open orientation and the closed orientation are horizontal to the mattress. The second support portion 523 is provided on the other end in the first direction. The second support portion 523 is configured as a fitting hole or fitting hole into which the second supported portion (convex portion) 543 of the second support member 54 fits. The second support portion 523 is provided on the flat portion 526 c of the second recess 526 in the peripheral wall 527 that constitutes the nozzle body 52 .

[0030] 10 , the second recess 526 is composed of a flat portion 526c formed in the pivot region of the extension portion 542 of the second support member 54, a closing-side step 526a formed on the edge of the pivot region on the closing orientation side, and an opening-side step 526b formed on the edge of the pivot region on the opening orientation side. In other words, the second recess 526 is formed so that at least the region between the position of the closing-side edge 542b on the closing orientation side of the extension portion 542 of the second support member 54 in the closed state and the position of the opening-side edge 542a on the opening orientation side of the extension portion 542 of the second support member 54 in the open state is recessed. The second recess 526 is formed in a region that matches the shape of the second support member 54 in the closed state and a region that matches the shape of the extension portion 542 of the second support member 54 in the open state.

[0031] The second restricting portion 524 is provided to protrude along the rotational trajectory of the second support member 54 (extension portion 542), juts out downward, and is movable up and down. In this embodiment, the second restricting portion 524 is provided on the lower surface portion (flat portion 526c) of the second recess 526, which is perpendicular to the rotation axis. As shown in FIG. 11B , the second restricting portion 524 is formed, for example, inside a "U"-shaped through groove 524a. The second restricting portion 524 has a base end portion 524b and an abutting portion 524c on the opposite side of the base end of the base end portion 524b, and is configured to be elastically deformable upward. The abutting portion 524c protrudes downward from the base end portion 524b. As a result, the abutment portion 524c abuts (comes close to) the closing edge 542a of the extension portion 542 of the second support member 54 in the closed state as shown in Figure 13A, and abuts (comes close to) the opening edge 542b of the extension portion 542 of the second support member 54 in the open state as shown in Figure 13B, thereby restricting the rotation of the second support member 54.

[0032] The locking portion 528 is provided at a position closer to one end of the nozzle body 52 in the first direction than the other end. The locking portion 528 is provided on the peripheral wall 527 of the nozzle body 52 on the side of the first support member 53, and is positioned to avoid the rotational path of the first support member 53. In other words, as shown in FIG. 14 , the locking portion 528 is provided at a position that allows (does not interfere with) the rotation of the first support member 53. The locking portion 528 is provided with an engagement hole (groove) 528a (see FIG. 9 ) for engaging a cable tie (not shown) that keeps the power cord 35 bundled by folding it multiple times or rolling it up. This eliminates the need to provide a portion on the main body 1 or the like to support the bundled power cord 35.

[0033] 9 and 10 , the nozzle main body 52 includes a cylindrical body 551, a connector 553 that is provided on the inlet side of the cylindrical body 551 and that is for connecting to the hose 57, an attachment body 555 that attaches the connector 553 to the cylindrical body 551, and a discharge port body 557 that has an opening that forms the discharge port 511. Note that the connector 553 is attached to the cylindrical body 551 after being connected to the hose 57, and therefore may be a part of the hose 57.

[0034] (2-2) First Support Member When the nozzle 51 is placed under the material to be dried, the first support member 53, when in an open state as shown in FIG. 2, supports the material to be dried and forms a flow path through which hot air flows between the material to be dried. The first support member 53 is in the form of a long plate and is shaped to fit along the peripheral wall of the nozzle body 52 when in a closed state. Specifically, the nozzle body 52 is cylindrical, polygonal, polygonal with rounded corners, or a similar shape, and the first support member 53 has an arc-shaped or arc-like cross-sectional shape. In the first support member 53, the ends closest to the first support portion 521 are referred to as the proximal side and the proximal end, and the ends farther from the first support portion 521 are referred to as the distal side and the distal end. As described above, the first support member 53 is rotatably supported by the first support portion 521, and when the first support member 53 is supported so as to extend in a second direction intersecting the first direction as shown in FIG. 14 (the state shown in FIG. 2, which is also the open state), the distal end 53a is located on the other side of the first direction than the first support portion 521. The second direction here is a direction that intersects the rotation direction with respect to the first direction at an angle of 90° or more. The angle between the first direction and the second direction may be determined, for example, by using a virtual line ("L1" in FIG. 10) that passes through the center of the first support member 53 in the width direction and extends in the longitudinal direction.

[0035] 9 and 10 , the first support member 53 has a rectangular shape when viewed from above and includes a main body 531 having an arc-shaped or arc-like cross section, an extension 532 extending from the other end of the main body 531 in the first direction (longitudinal direction) to the other side in the first direction, and a first supported portion 533 rotatably supported by the first support portion 521 of the nozzle body 52. ​​The main body 531 has an operating portion (notched portion) 531a that can be used to rotate the first support member 53 and a notched portion 531b that prevents interference with the locking portion 528 of the nozzle body 52 during rotation. The main body 531 has an engagement hole 531a for engaging a cable tie (not shown) that keeps the power cord 35 bundled by folding or rolling it multiple times. This eliminates the need to provide a portion on the main body 1 or the like to support the bundled power cord 35.

[0036] The extension portion 532 extends along an imaginary line that passes through the rotation center and extends parallel to the longitudinal direction of the main body portion 531. In other words, there are a pair of extension portions 532, and they are provided on both ends of the main body portion 531 in the width direction. The first supported portion 533 is provided on the extension portion 532 opposite the main body portion 531. As shown in FIG. 11C , the first supported portion 533 is configured as a convex portion that protrudes inward in the width direction. The convex portion has a small diameter region 533a and a large diameter region 533b, and the large diameter region 533b is configured to be elastically deformable in the radial direction. Note that the first supported portion 533 is elastically deformable due to a groove portion 533c formed in the convex portion and extending in a direction perpendicular to the elastic deformation direction. When the first supported portion 533 is attached to the first supporting portion (through hole) 521, the large diameter region 533b elastically deforms and passes through the first supporting portion (through hole) 521 from the outside in the width direction, and the small diameter region 533a fits into the first supporting portion (through hole) 521. The cross-sectional shape of the small diameter region 533a and the opening shape of the first supporting portion (through hole) 521 are circular.

[0037] As shown in Fig. 14 , when the first support member 53 is supported by the first support portion 521 so as to extend in the first direction, the distal end 53a is formed to extend further to one side in the first direction than the nozzle body 52. ​​This allows the first support member 53 to be longer, thereby increasing the gap between the material to be dried and the nozzle 51 during use. Furthermore, the length of the first support member 53 is configured so that, when the nozzle 51 is housed in the discharge portion housing portion 102, the end portion (distal end 53a) of the first support member 53 on one side in the first direction does not protrude from the discharge portion housing portion 102 (housing 10) as shown in Fig. 1A . This allows the first support member 53 to be housed compactly while being longer, thereby improving design. In particular, the first support member 53 is supported on the other side in the first direction, i.e., on the discharge port 511 side, and is inserted into the discharge portion accommodating portion 102 from the discharge port 511 during storage, so the tip of the nozzle 51 can be inserted all the way to the deepest part (rear) of the discharge portion accommodating portion 102. This allows the first support member 53 to be stored compactly while being long.

[0038] (2-3) Second Support Member When the nozzle 51 is placed under the material to be dried, the second support member 54 can stably support the nozzle 51 by being in the open state as shown in FIG. 2 . The second support member 54 is shaped to fit along the peripheral wall of the nozzle body 52 in the closed state. Specifically, the nozzle body 52 has a cylindrical shape, a polygonal tube shape, a polygonal tube shape with rounded corners, or a similar shape, and the second support member 54 has an arc-shaped cross section perpendicular to the cylindrical axis of the nozzle body 52 in the closed state or a similar shape. As described above, the second support member 54 is rotatably supported by the second support portion 523. When the second support member 54 is in the open state, it extends in a third direction different from the first direction and the second direction. Here, the third direction is a direction intersecting the first direction when viewed from above, and is a direction intersecting the rotation direction at an angle of 70 to 110° from the first direction. The angle between the first direction and the third direction may be determined, for example, by using an imaginary line ("L2" in FIG. 10) that passes through the rotation axis of the second support member 54 in the closed state and extends in the first direction (the longitudinal direction of the nozzle body 52). When the nozzle 51 is viewed from above, the second support members 54 are located on both sides of the cylindrical axis in the width direction. Furthermore, the two support members 54 are arranged symmetrically with respect to the cylindrical axis. This makes it possible to prevent the nozzle body 52 from rotating around the cylindrical axis.

[0039] As shown in FIGS. 9 and 10 , the second support member 54 has a main body portion 541 having an arc-shaped or arc-like shape corresponding to ¼ of the angle of the peripheral wall of the nozzle body 52, an extension portion 542 extending from the other end of the main body portion 541 in the first direction (the longitudinal direction of the nozzle body 52) to the other side in the first direction, and a second supported portion 543 rotatably supported by the second support portion 523 of the nozzle body 52. ​​The main body portion 541 has an operating portion (notched portion) 541a that can be used to rotate the second support member 54. The extension portion 542 extends along an imaginary line that passes through the rotation center and is parallel to the first direction. The second supported portion 543 is provided on the opposite side of the extension portion 542 from the main body portion 541. The second supported portion 543 is formed by a convex portion that protrudes inward in the vertical direction. The convex portion has a small-diameter region 543a and a large-diameter region 543b, and the large-diameter region 543b is configured to be elastically deformable in the radial direction. The second supported portion 543 is elastically deformable due to a groove portion 543c formed in the convex portion and extending in a direction perpendicular to the direction of elastic deformation. When the second supported portion 543 is attached to the second support portion (through hole) 523, the large-diameter region 543b elastically deforms and passes through the second support portion (through hole) 523 from below, and the small-diameter region 543a fits into the second support portion (through hole) 523. The cross-sectional shape of the small-diameter region 543a and the opening shape of the second support portion (through hole) 523 are circular.

[0040] 12A , the extension portion 532 of the first support member 53 is located between the first restricting portion 522 and a step (referred to as the closing-side step) 525a located on the closing-side side of the first recess 525, and is in close proximity to the first restricting portion 522 and the closing-side step 525a, thereby restricting the rotation of the first support member 53. When the first support member 53 is rotated to the opening direction, the abutting portion 522c of the first restricting portion 522 is recessed in the width direction, and the first support member 53 is rotated in the opening direction. When the first support member 53 is further rotated in the open direction, the extension portion 532 passes the abutment portion 522c, and the opening-side edge 532a of the extension portion 532 moves toward the opening-side step 525b located on the opening-side side of the first recess 525, and the recessed abutment portion 522c returns to its original position. After this movement, in the open state shown in FIG. 12B , the extension portion 532 is located between the first restricting portion 522 and the opening-side step 525b located on the opening-side side of the first recess 525, in a position close to the first restricting portion 522 and the opening-side step 525b, thereby restricting the rotation of the first support member 53. In this way, when switching from the closed state to the open state, simply by operating the abutment portion 522c of the first restricting portion 522 and rotating the first support member 53, the restriction of rotation in the open state can be easily achieved.

[0041] (3-2) From Open State to Closed State In the open state shown in FIG. 12B , the extension portion 532 of the first support member 53 is positioned between the first restriction portion 522 and the open-side step 525b of the first recess 525, restricting the rotation of the first support member 53. When the first support member 53 is rotated in the closed direction, the abutting portion 522c of the first restriction portion 522 is recessed in the width direction, causing the first support member 53 to rotate in the closed direction. When the first support member 53 is further rotated in the closed direction, the extension portion 532 passes the abutting portion 522c and the closed-side edge 532b of the extension portion 532 rotates toward the close-side step 525a of the first recess 525, and the recessed abutting portion 522c returns to its original position. 12A, the extension portion 532 after passing through restricts the rotation of the first support member 53 at a position between the first restricting portion 522 and the closing-side step 525a of the first recess 525. In this way, when switching from the open state to the closed state, the restriction of rotation in the closed state can be easily achieved simply by operating the abutting portion 522c of the first restricting portion 522 and rotating the first support member 53.

[0042] (3-3) Locking Portion of Nozzle Body The locking portion 528 of the nozzle body 52 is arranged so as not to interfere with the rotating first support member 53. As shown in FIG. 4, the first support member 53 has a notched portion 531b at the end of the nozzle body 52 closer to the first support member 521. The "U"-shaped edge of the first support member 53 facing the notched portion 531b is the edge on the distal end 53a side, which is the proximal end 53b, and this proximal end 53b is located on the imaginary line L1 (see FIG. 9). During rotation, the rotation locus R1 of the proximal end 53b of the main body 531 of the first support member 53 is an arc, as shown in FIG. 14. The locking portion 528 is arranged to avoid the rotation locus R1. In other words, the locking portion 528 is located inside the first support member 521 side with respect to the rotation locus R1. Conversely, when attention is focused on the notched portion 531b, the notched portion 531b is provided so that the rotation locus R1 of the proximal end 53b is positioned outside the locking portion 528. More specifically, the maximum distance between the rotation axis of the first support member 53 and the locking portion 528 is configured to be smaller than the distance between the rotation axis and the proximal end 53b of the first support member 53. This prevents interference with the locking portion 528 of the nozzle 51 when the first support member 53 rotates.

[0043] 13A, the extension portion 542 of the second support member 54 is located between the second restricting portion 524 and a step (referred to as the closing-side step) 526a located on the closing-side side of the second recess 526, and is in close proximity to the second restricting portion 524 and the closing-side step 526a, thereby restricting the rotation of the second support member 54. When the second support member 54 is rotated to the opening direction, the abutting portion 524c of the second restricting portion 524 is recessed upward, and the second support member 54 is rotated in the opening direction. When the second support member 54 is further rotated in the open direction, the extension portion 542 passes the abutment portion 524c, and the opening-side edge 542a of the extension portion 542 moves toward the opening-side step 526b located on the opening-side side of the second recess 526, causing the recessed abutment portion 524c to return to its original position. After this movement, in the open state shown in FIG. 13B , the extension portion 542 is located between the second restricting portion 524 and the opening-side step 526b located on the opening-side side of the second recess 526, thereby restricting the rotation of the second support member 54. In this way, when switching from the closed state to the open state, simply by operating the abutment portion 524c of the second restricting portion 524 and rotating the second support member 54, the restriction of rotation in the open state can be easily achieved.

[0044] (4-2) From Open State to Closed State In the open state shown in FIG. 13B , the extension portion 542 of the second support member 54 is located between the second restricting portion 524 and the open-side step 526b of the second recess 526 and in a position close to the second restricting portion 524 and the open-side step 526b, thereby restricting the rotation of the second support member 54. When the second support member 54 is rotated in the closing direction, the abutting portion 524c of the second restricting portion 524 is recessed upward, causing the second support member 54 to rotate in the closing direction. When the second support member 54 is further rotated in the closing direction, the extension portion 542 passes the abutting portion 542c and the closed-side edge 542b of the extension portion 542 moves toward the closed-side step 526a of the second recess 526, and the recessed abutting portion 542c returns to its original position. 13A , extension portion 542 after passing through is located between second restricting portion 524 and closing-side step 526a of second recess 526, that is, between second restricting portion 524 and closing-side step 526a, thereby restricting rotation of second support member 54. In this way, when switching from the open state to the closed state, simply by operating abutting portion 524c of second restricting portion 524 and rotating second support member 54, it is possible to easily restrict rotation in the closed state.

[0045] <Modifications> Although an embodiment has been described, the present invention is not limited to this embodiment, and may be modified as follows, for example. Also, the present invention may be a combination of an embodiment and a modification, or a combination of modifications. Also, examples not described in the embodiment or modification, and design changes within the scope of the gist are included in the present invention.

[0046] 1. Main Body (1) The housing 10 of the main body 1 has a vertically low box-like shape. However, for example, it may have a vertically high box-like shape (a box-like shape with a small front-to-back dimension) with the discharge unit housing 102 above the hot air supply unit 20, or it may have a vertically high box-like shape (a box-like shape with a small front-to-back dimension) with the hot air supply unit 20 extending vertically and the discharge unit housing 102 side-by-side (e.g., left-to-right). In other words, the hot air supply unit 20 (air blowing means 21) and the nozzle 51 may be arranged front-to-back as in the embodiment, or may be arranged vertically or horizontally. It is preferable that the opening for removing the discharge unit 5 be located on one side of the direction in which the hot air supply unit 20 and the discharge unit housing 102 are aligned and on one side of the direction perpendicular to the alignment direction.

[0047] (2) The operation unit 40 was previously provided on the front wall 11, but it may also be provided on the top wall 14. However, considering wiring and other factors, it is preferable to provide it on a wall facing (adjacent to) the unit housing section 101. The operation unit 40 has an operation control unit, but the operation control unit may also be provided in the circuit unit 30. (3) The hot air supply unit 20 is provided with the air blowing means 21 arranged upstream and the heating means 22 arranged downstream, but the reverse is also possible. However, considering the heat resistance of the air blowing means 21, it is preferable that the air blowing means 21 be arranged upstream. In the hot air supply unit 20, the inlet opening 232 of the casing 23 and the air intake 13a of the housing 10 are arranged close to each other in the left-right direction, but they may also be arranged apart. However, when air outside the housing 10 is directly drawn into the hot air supply unit 20, it is preferable that the distance between the inlet opening 232 and the air intake 13a be equal to or less than the maximum dimension of the intake 213a. (4) The hot air supply unit 20 has the inlet opening 232 of the casing 23, the suction port 213a of the air blower 21, the heating means 22, and the outlet opening 233 on the rotation axis (straight line) of the air blower 21. However, these may be arranged in this order on a gently curved line. This allows for smooth air intake and discharge. (5) The hot air supply unit 20 includes a connector 25 for connecting to the hose 57. However, the connector 25 may be rotatably fixed directly to the housing 10. Considering assembly efficiency, a structure in which the hot air supply unit 20 and the discharge unit 5 are connected to the hose 57 and then incorporated into the housing 10 is preferable. (6) The electronic components 31 of the circuit unit 30 may be mounted on the board 43 of the operation unit 40 to form a single circuit unit (single board). Although the circuit board 32 of the circuit unit 30 has been disposed adjacent to and parallel to the bottom wall 15 in the above embodiment, it may alternatively be disposed adjacent to and parallel to the partition wall 17, or adjacent to and parallel to the top wall 114. However, in consideration of assembly efficiency, it is preferable to provide the circuit board 32 on the housing main body side. (7) The discharge portion accommodating portion 102 accommodates the discharge portion 5 or most of the discharge portion 5, but may also accommodate all or most of the nozzle 51, with the hose 57 located outside the housing 10. In other words, it is sufficient for the discharge portion accommodating portion 102 to accommodate at least the discharge port 511 side of the nozzle 51.(8) The rear wall 12 of the housing 10 is open from a position to the right of the center to the left end position in the left-right direction, but as long as the nozzle 51 can be accommodated from the left side, it may or may not be open from a position to the left of the center to the left end position in the left-right direction.

[0048] 2. Discharge Portion (1) The nozzle 51 has the first support portion 521 on the other side of the center in the first direction of the nozzle body 52. ​​However, the first support portion 521 may be located at the center in the first direction or on one side of the center in the first direction. If it is desired to increase the longitudinal length of the first support member 53 (the length in the first direction in the closed state), it is preferable that the first support portion 521 be located on the other side in the first direction. (2) In the embodiment, the angle A (see FIG. 14 ) between the first direction and the second direction, which is the rotation range of the first support member 53, is 115°. However, if the angle is 90° or more, the load of the weight of the material to be dried acts in the opening direction of the first support member 53, and the first support member 53 can be prevented from closing. Note that the angle A here is based on a virtual line ("L1" in FIG. 9 ) that passes through the center of the width direction on the surface of the first support member 53 (the surface opposite the nozzle body 52) and extends in the longitudinal direction, but other positions may be used as the reference. The angle A between the first direction and the second direction is 130° or less, preferably 120° or less. By setting the angle A in this range, the load (torque) of the material to be dried acting on the first support portion 521 and the first supported portion 533 can be reduced. The angle A between the first direction and the second direction may be 90° or less. In this case, this can be achieved by providing a restricting portion (a first auxiliary support portion that supports from the closing side in the rotation direction) that restricts rotation in the closing direction. (3) The first support member 53 is rotatably supported by the first support portion 521, but may be configured to be detachable between the open and closed states. For example, this can be achieved by providing a closing support groove along the first direction and an opening groove along the second direction in the nozzle body 52, and configuring the extension portion 532 of the first support member 539 to be insertable and removable. (4) Although a pair of second support members 54 are provided in the width direction perpendicular to the first direction, they may be provided on only one side. In this case, this can be achieved by tilting the nozzle 51 to one side and supporting it with the second support member 54 on one side. (5) Although the second support portion 523 is located on the other side of the center in the first direction, it may be located on the central side or on one side of the center. The second support member 54 may be configured such that its rotation axis is on the other side of the first direction and rotates to open and close on one side in the first direction, but also to open and close on the other side in the first direction.(6) In the housed state, in a closed state (a state in which the first support member 53 is supported by the first support portion 521 so as to extend in the first direction), the first support member 53 extends further to one side in the first direction than the nozzle body 52, but may be at the same position as one end of the nozzle body 52 or may be located on the other side of the one end of the nozzle body 52. ​​(7) In the housed state, the nozzle 51 is aligned with the blower 21 so as to overlap in the front-to-rear direction, but the end of the nozzle 51 on the discharge port 511 side may be located on the discharge port 511 side of the inlet opening 232 of the casing 23 in the rotational axis direction, or may be located on the opposite side of the outlet opening 233 in the rotational axis direction, or may be located at the same position. In consideration of effective use of the housing space, it is preferable that the end of the nozzle 51 on the discharge port 511 side be located near the inlet opening 232 of the casing 23.

[0049] <<Inventions>> The above-described embodiments and modifications include at least the following inventions. Each of the following inventions is not bound by the specific features or configurations of the embodiments of other inventions.

[0050] <Invention 1> 1. Prior Art A drying device has been disclosed that includes an air intake, a blowing means, a heating means for heating the air drawn in through the air intake, and a discharging means for discharging the air heated by the heating means onto an object to be dried (for example, Document 1: Publication No. 2018-42885). 2. Problem to be Solved by Invention 1 The drying device of the above technology requires at least the blowing means and the heating means to be separately incorporated into the housing, which makes the installation process complicated. Invention 1 aims to provide a drying device that makes it easy to incorporate the heating means and the blowing means.

[0051] 3. Invention 1 A first drying device according to invention 1 comprises: a main body housing a casing that houses an air blowing means having a fan and a drive unit that drives the fan, and a heating means that heats the air blown by the air blowing means; and a discharge unit that discharges hot air generated by the main body, wherein the casing supports the air blowing means and also supports the heating means, thereby facilitating the installation of the heating means and the air blowing means.

[0052] A second drying device according to the first aspect of the present invention is the first drying device, wherein the casing has an inlet opening through which air flows into the interior and an outlet opening through which the air inside is discharged, the heating means is arranged closer to the outlet opening than the inlet opening, and the air blowing means is arranged closer to the inlet opening than the outlet opening. In other words, the air blowing means is arranged closer to the inlet opening, and the heating means is arranged closer to the outlet opening. This allows air before it is heated to be supplied to the air blowing means, thereby suppressing a temperature rise in the air blowing means.

[0053] A third drying device according to the first aspect of the present invention is the drying device according to the first or second aspect, wherein the rotation axis of the air blowing means intersects with the opening plane of the outlet opening. In other words, an imaginary extension of the rotation axis passes through the outlet opening. This allows air to be smoothly blown from the air blowing means toward the outlet opening.

[0054] A fourth drying device according to the first aspect of the present invention is any one of the first to third drying devices, wherein the center line of the inlet opening intersects with the opening plane of the outlet opening. In other words, an imaginary extension of the center line passes through the outlet opening. This facilitates smooth air flow from the inlet opening to the outlet opening.

[0055] A fifth drying device according to the first aspect of the present invention is any one of the first to fourth drying devices, wherein the air blowing means draws air through an air intake port of the main body, and the air intake port faces the inlet opening. Here, "facing" means that the air intake port and the inlet opening partially or completely overlap when viewed from a direction perpendicular to the air intake port. This reduces pressure loss between the air intake port and the inlet opening.

[0056] A sixth drying device according to the first aspect of the present invention is any one of the first to fifth drying devices, wherein the radial width of the drive unit is smaller than the opening area of ​​the outlet opening, thereby improving suction performance.

[0057] A seventh drying device according to the first aspect of the present invention is any one of the first to sixth drying devices, wherein the opening area of ​​the outlet opening is larger than the opening area of ​​the suction port of the air blowing means, thereby making it easier for the air blown out from the air blowing means to hit a wide area of ​​the surface of the heating means, thereby heating it sufficiently.

[0058] An eighth drying device according to the first aspect of the present invention is any one of the first to seventh drying devices, wherein the flow path cross-sectional area of ​​the casing is larger on the outlet opening side than on the inlet opening side, thereby enabling the hot air to be blown out over a wide range.

[0059] A ninth drying device according to the first aspect of the present invention is any one of the first to eighth drying devices, further comprising: a temperature sensor attached to the casing; and an elastic body disposed between the casing and the heating means and biasing the heating means toward the temperature sensor, wherein the casing supports the elastic body in a recess. This improves the accuracy of temperature detection and also makes it easy to dispose the elastic body.

[0060] <Invention 2> 1. Prior Art A drying device has been disclosed in which a nozzle unit includes a nozzle body that blows out air and a movable unit that forms part of the nozzle body and has an air outlet, and the movable unit is configured to be able to change its position or posture relative to the nozzle unit (for example, Document 1: Publication No. 2018-42885). 2. Problem to be Solved by Invention 2 In the drying device of the above technology, there is a risk that the movable unit will close due to the weight of the material to be dried. Invention 2 aims to provide a drying device that can reduce the possibility of the support member closing due to the weight of the material to be dried.

[0061] 3. Invention 2 A first drying device according to Invention 2 comprises: a main body housing a blowing means having a fan and a drive unit for driving the fan, and a heating means for heating the air blown out by the blowing means; and an outlet unit having a nozzle with an outlet port and discharging hot air generated by the main body, wherein the nozzle comprises a nozzle main body into which hot air from the main body enters from one side in a first direction and which has the outlet port at its other end on the other side in the first direction; and a first support member supported by a first support unit of the nozzle main body, wherein if the end of the first support member closest to the first support unit is defined as a proximal end and the end farthest from the first support unit is defined as a distal end, when the first support member is supported to extend in a second direction intersecting the first direction, the distal end is located on the other side in the first direction than the first support unit. This makes it possible to reduce the likelihood of the first support member (support member) closing due to the weight of the material to be dried.

[0062] A second drying device according to a second aspect of the present invention is the first drying device, wherein the first support member is rotatably supported by the first support portion, and the nozzle body has a first restricting portion that restricts the rotation of the first support member, thereby making it possible to reduce the likelihood of the support member (first support member) closing due to the weight of the material to be dried.

[0063] A third drying device according to a second aspect of the present invention is the first or second drying device, wherein the nozzle has a second support member supported by a second support part in a state in which the second support member extends in a third direction different from the first direction and the second direction, thereby making it possible to reduce tilt of the nozzle in the third direction.

[0064] A fourth drying device according to a second aspect of the present invention is any one of the first to third drying devices, wherein the second support member is rotatably supported by the second support portion, and the nozzle body has a second restricting portion that restricts the rotation of the second support member, thereby making it possible to reduce tilt of the nozzle in a third direction.

[0065] A fifth drying device according to a second aspect of the present invention is any one of the first to fourth drying devices, wherein the discharge portion has a hose connected to the main body portion, the hose is connected to the one side of the nozzle body, the main body portion has a storage portion that stores the nozzle, and when the nozzle is stored in the storage portion, the hose is bent and the discharge port faces the bottom of the storage portion, and in the stored state, the first support member extends further in the first direction than the nozzle body while being supported by the first support portion so that the first support member extends in the first direction. This allows the first support member to be longer. Furthermore, the nozzle can be inserted toward the back of the storage portion, making the device more compact in the stored state.

[0066] A sixth drying device according to a second aspect of the present invention is any one of the first to fifth drying devices, wherein the nozzle in the housed state is arranged side by side with the air blowing means, thereby making it possible to make the device more compact.

[0067] A seventh drying device according to a second aspect of the present invention is any one of the first to sixth drying devices, wherein the nozzle has a locking portion that locks into the housing portion at a position closer to the one end of the nozzle body than to the other end, thereby enabling the nozzle to be locked in a stable state.

[0068] An eighth drying device according to a second aspect of the present invention is any one of the first to seventh drying devices, wherein the first support member is rotatably supported by the first support portion, and the locking portion is disposed so as to avoid a rotational path of the first support member, thereby facilitating the locking of the nozzle and the rotation of the first support member.

[0069] A ninth drying device according to a second aspect of the present invention is any one of the first to eighth drying devices, wherein the main body has one side facing the storage section in the direction of arrangement of the storage section and the blowing means, and the first support member faces the outside in the stored state, thereby facilitating storage and removal of the nozzle.

[0070] A tenth drying device according to invention 2 comprises: a main body portion accommodating a blowing means having a fan and a drive portion for driving the fan, and a heating means for heating air sent out by the blowing means; and a discharge portion having a nozzle with an outlet and discharging hot air generated by the main body portion, wherein the nozzle comprises a nozzle main body into which hot air from the main body portion flows in from one side in a first direction and having the outlet at its other end on the other side in the first direction; and a first support member supported by a first support portion of the nozzle main body, wherein if an end of the first support member closer to the first support portion is defined as a proximal end and an end of the first support member farther from the first support portion is defined as a distal end, when the first support member is supported to extend in a second direction intersecting the first direction, the distal end is located on one side in the first direction of the first support portion, and the nozzle main body has a first auxiliary support portion that supports the first support member, which is supported to extend in the second direction, from one side in the first direction. This makes it possible to reduce the possibility of the first support member (support member) closing due to the weight of the material to be dried.

[0071] <Invention 3> 1. Prior Art A drying device has been disclosed that includes an air intake, a heating means for heating the air drawn in through the air intake, and a discharge means for discharging the air heated by the heating means onto the material to be dried (e.g., JP 2018-42885 A). In this drying device, the air intake, air blowing means, and heating means are aligned in a first direction, and the air blowing means' suction port is located in a second direction perpendicular to the first direction. 2. Problems to be Solved by Invention 3 In the drying device of the above technology, the air flow from the air intake to the suction port is not linear, resulting in pressure loss, leaving room for improvement. Invention 3 aims to provide a drying device that can reduce pressure loss in the flow path.

[0072] 3. Invention 3 A first drying device according to Invention 3 comprises: a main body accommodating a blowing means for drawing air from an intake port through a suction port and a heating means for heating the air sent out by the blowing means; and a discharge section for discharging hot air generated by the main body, wherein the main body has the intake port, and the heating means, the blowing means, and the intake port are arranged in this order along the rotation axis of the blowing means, and the suction port and the intake port face each other along the rotation axis. This makes it possible to reduce pressure loss in the flow path. Here, "facing" means that the intake port and the suction port partially or completely overlap when viewed from a direction perpendicular to the intake port.

[0073] A second drying device according to a third aspect of the present invention is the first drying device, wherein the discharge portion has a hose connected to the main body so as to communicate with the air blowing means, and the rotation axis of the air blowing means intersects with an opening plane of an air inlet at the end of the hose. In other words, an imaginary extension of the rotation axis passes through the air inlet. This allows air from the air blowing means to flow smoothly into the hose.

[0074] A third drying device according to a third aspect of the present invention is the drying device according to the first or second aspect, wherein an opening area of ​​the inlet is larger than an opening area of ​​the suction port, thereby enabling the hot air to be blown out over a wide range.

[0075] A fourth drying device according to a third aspect of the present invention is any one of the first to third drying devices, wherein the discharge section has a hose connected to the main body section so as to communicate with the air blowing means, and a nozzle connected to the hose, the main body section is provided with an operation control section for operating at least the operation of the air blowing means, the main body section has a housing section that houses the nozzle when the hose is bent, and the nozzle housed in the housing section, the air blowing means, and the operation control section are arranged in this order in an orthogonal direction that is orthogonal to the rotation axis direction, thereby making it possible to make the device more compact.

[0076] <Invention 4> 1. Prior Art A drying device has been disclosed in which a nozzle unit includes a nozzle body that blows out air, a portion of the nozzle body, and an air outlet. The movable unit is provided in a nozzle unit that can change its position or posture relative to the nozzle unit (e.g., JP 2018-42885 A). 2. Problems to be Solved by Invention 4 In the drying device of the above technology, if the movable unit is lengthened to improve the lifting effect of the material to be dried, it protrudes from the nozzle unit, resulting in an increase in the size of the nozzle body. Invention 4 aims to provide a drying device that can lengthen the support member while preventing the discharge section from becoming larger.

[0077] 3. Invention 4 A first drying device according to Invention 4 comprises: a main body housing a blowing means having a fan and a drive unit for driving the fan, and a heating means for heating the air blown by the blowing means; and an outlet unit having a nozzle with an outlet port and a hose, which discharges hot air generated by the main body, wherein the nozzle comprises a nozzle main body into which hot air from the main body flows from one side in a first direction and which has the outlet port at its other end on the other side in the first direction; and a first support member rotatably supported by a first support portion of the nozzle main body, wherein the hose is connected to the one side of the nozzle main body, and the first support portion is located on the other end or the other side of the nozzle main body. This allows the first support member to be long. Furthermore, even if the first support member in the housed state protrudes from one end of the nozzle main body, it overlaps with the hose and does not get in the way.

[0078] <Others> Inventions 1 to 3 may or may not have the matters specifying invention 4. Inventions 2 to 4 may or may not have the matters specifying invention 1. Inventions 1, 3, and 4 may or may not have the matters specifying invention 2. Inventions 1, 2, and 4 may or may not have the matters specifying invention 3. Inventions 1 to 4 may have the configurations described in the embodiments and modifications as matters specifying the inventions.

[0079] X Drying device 1 Main body 5 Discharge section 10 Housing 20 Warm air supply unit 21 Air blowing means 22 Heating means 30 Circuit unit 40 Operation unit 51 Nozzle 52 Nozzle main body 53 First support member 54 Second support member 57 Hose

Claims

1. A drying device comprising: a main body that houses a casing that houses a blowing means having a fan and a drive unit that drives the fan, and a heating means that heats the air blown by the blowing means; and a discharge unit that discharges hot air generated by the main body, wherein the casing supports the blowing means and also supports the heating means.

2. The drying device according to claim 1, wherein the casing has an inlet opening through which air flows into the interior and an outlet opening through which the air inside is discharged, the heating means is arranged on the outlet opening side relative to the inlet opening, and the air blowing means is arranged on the inlet opening side relative to the outlet opening.

3. The drying device according to claim 2, wherein the rotation axis of the air blowing means intersects with the opening plane of the outlet opening.

4. The drying device according to claim 2 or 3, wherein the center line of the inlet opening intersects with the opening plane of the outlet opening.

5. The drying device according to claim 2 or 3, wherein the air blowing means draws air through an air intake port of the main body portion, and the air intake port faces the inlet opening.

6. The drying device according to claim 2 or 3, wherein the radial width of the drive unit is smaller than the opening area of ​​the outlet opening.

7. The drying device according to claim 2 or 3, wherein the opening area of ​​the outlet opening is larger than the opening area of ​​the suction port of the air blowing means.

8. The drying device according to claim 2 or 3, wherein the flow path cross-sectional area of ​​the casing is larger on the outlet opening side than on the inlet opening side.

9. A drying device according to claim 1 or 2, comprising: a temperature sensor attached to the casing; and an elastic body arranged between the casing and the heating means and biasing the heating means toward the temperature sensor, wherein the casing supports the elastic body in a recess.

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