Bedding drying device

Abstract

To provide a bedding drying device for bedding and others, which allows a clearance between a carriage and a drying chamber to be easily blocked.SOLUTION: A bedding drying device consists of a drying chamber, an air heating blower part, and a carriage. The drying chamber has an opening as an entrance for the carriage, an air inlet to introduce heated air from the air heating blower part, and an air outlet to discharge the air cooled by passing through clothing. The carriage is a box body smaller than the drying chamber and has a bedding and others mounting part having air passing holes on a top surface facing a bottom wall. An air discharge opening is disposed on an outer peripheral side wall, which faces the air outlet of the drying chamber, of the box body. The air outlet is one end of a cylindrical hot air connection part and is contacted with and separated from the air discharge opening of the carriage through an insertion opening disposed on the side wall of the drying chamber by a drive part. The other end of the cylindrical hot air connection part communicates with the air heating blower part.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a bedding drying device for drying bedding such as mattresses and futons. [Background technology]

[0002] Conventionally, there is a bedding drying device for drying bedding such as mattresses and futons after washing, which dries the bedding by placing the bedding in a drying chamber into which air heated by a heat source such as a gas burner flows in. In this case, since the bedding is breathable, efficient drying is achieved by passing heated air through the bedding. Furthermore, because mattresses and other bedding that have absorbed a lot of moisture from washing are very heavy, they are sometimes placed on a cart outside the drying chamber and then the cart is moved into the drying chamber to be dried.

[0003] However, in order to move the cart in and out of the drying chamber, a gap is required between the drying chamber and the cart. The heated air is discharged from the drying chamber through this gap, which has less resistance, without passing through the bedding, resulting in poor drying efficiency. In order to solve this problem, there is a drying device that blocks the gap so that most of the heated air passes through the bedding (see, for example, Patent Document 1 below). However, this requires the work of blocking the gap with a sealing material such as felt, and blocking the gap takes time and effort, resulting in poor workability. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2000-157795 A Summary of the Invention [Problem to be solved by the invention]

[0005] SUMMARY OF THE PRESENT DISCLOSURE In view of the above, an object of the present invention is to provide a drying device for bedding and the like, in which the gap between the cart and the heating chamber can be easily blocked. [Means for solving the problem]

[0006] In order to solve the above problems, a bedding drying device is provided, which comprises a drying chamber; an air heating and blowing section including a heat source for heating air to supply hot air to the drying chamber and a blower for circulating the air between the drying chamber and the air heating and blowing section; and a cart that can enter and exit the drying chamber; the drying chamber includes an opening that serves as an entrance and exit for the cart, an air inlet for introducing heated air from the air heating and blowing section, and an air outlet for discharging air that has passed through clothes and the like and that has been cooled; the cart is a box-shaped body that is smaller than the drying chamber and has a gap between its peripheral side wall and the inner peripheral side wall of the drying chamber. The present invention is characterized in that the bottom wall of the box body is provided with wheels, the upper surface facing the bottom wall has a placement section for bedding etc. with air passage holes formed therein, and the peripheral side wall of the box body facing the air outlet of the drying chamber has an air exhaust opening; the air outlet is an opening at one end of a cylindrical hot air connecting section that faces the inside of the drying chamber from an insertion opening provided in the side wall of the drying chamber, the opening being moved toward and away from the air exhaust opening of the trolley by a drive section and a cylindrical hot air connecting section guide mechanism, and the opening at the other end of the cylindrical hot air connecting section is connected to the air heating blower section.

[0007] In the present invention, the cylindrical hot air connector is an expandable bellows body, one end of which is a free end and the other end of which is a fixed end.

[0008] Furthermore, in the present invention, the cylindrical hot air connector is a cylinder that is not flexible and both ends are free ends, so that the entire cylindrical hot air connector moves.

[0009] Furthermore, in the present invention, the cylindrical hot air connecting portion guide mechanism comprises a guided portion provided on the cylindrical hot air connecting portion and a guiding portion provided on the fixed portion. Effect of the Invention

[0010] According to the present invention, when the dolly is moved into and out of the drying chamber, the dolly is a box-shaped body smaller than the drying chamber, and a gap is generated between the circumferential side wall of the dolly and the inner circumferential side wall of the drying chamber, so that the dolly can be moved into and out of the drying chamber smoothly. The air outlet is moved toward and away from the air exhaust port of the dolly by the drive unit and the cylindrical hot air connecting portion guide mechanism, so that the air outlet does not come into contact with the air exhaust port during the drying process, and the hot air does not short-circuit through the gap, and the air outlet is separated from the air exhaust port before and after the drying process, so that the dolly does not get in and out of the drying chamber. The moving toward and away from the air outlet can be easily performed. [Brief description of the drawings]

[0011] [Figure 1] 1 is a schematic vertical cross-sectional front view of a bedding drying device according to an embodiment of the present invention. [Diagram 2] FIG. 4 is a schematic vertical sectional front view of the bedding drying device showing a state in which the dolly has entered the drying chamber. [Diagram 3] FIG. 2 is a schematic vertical cross-sectional side view of a bedding drying device. [Figure 4] FIG. 2 is a schematic vertical cross-sectional side view of the bedding drying device showing a state in which the dolly has entered the drying chamber. [Diagram 5] FIG. 4 is a schematic vertical cross-sectional front view showing an expanded state of a cylindrical hot air connecting portion. [Figure 6] Exploded perspective view of the main part of the cylindrical hot air connection part [Figure 7] FIG. 4 is a perspective explanatory view showing a cylindrical hot air connector, a drive unit, and a hot air connector guide mechanism. [Figure 8] FIG. 4 is an explanatory diagram showing a cylindrical hot air connector, a drive unit, and a hot air connector guide mechanism. [Figure 9] FIG. 11 is a schematic longitudinal sectional front view showing an enlarged state of another embodiment of a cylindrical hot air connector. [Figure 10] FIG. 13 is a vertical cross-sectional side view of another embodiment of the bogie; [Figure 11] A longitudinal sectional front view and a modified view of another embodiment of the bogie DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, a bedding drying device according to an embodiment will be described with reference to Fig. 1 to Fig. 11. In the description, the directions of the drying chamber and the cart, such as front and rear, left and right, and up and down, are described as the flow direction Y, the direction in which the cart enters and leaves the drying chamber, the direction in which the cart faces the front of the drying chamber in the flow direction Y is called the front direction, the direction in which the cart returns is called the rear direction, and the left side facing the front direction is called the left side, and the right side is called the right side. The direction that horizontally intersects with the flow direction Y is called the cross direction X, the direction that perpendicularly intersects with the flow direction Y is called the vertical direction Z, and the top is called the upper side and the bottom is called the lower side.

[0013] 1 to 4, reference numeral 1 denotes a housing in which a drying chamber 2 is formed. Reference numeral 11 denotes an air passage, in which air entering from an air passage inlet 11a exits from an air passage outlet 11b and enters the drying chamber 2. As can be seen from FIGS. 3 and 4, the drying chamber 2 is provided with an opening 21 through which the dolly 6 enters and exits the drying chamber 2. The opening 21 is provided with an opening 211 serving as an entrance provided on the front side of the drying chamber 2, and an opening 212 serving as an exit provided on the rear side of the drying chamber, which is the surface facing the opening 211 in the flow direction Y, thereby forming a so-called pass-through type drying device.

[0014] In addition, since most of the bedding S is rectangular, the traffic direction Y of the drying chamber 2 is longer than the cross direction X, and the carts 6 that enter and exit the drying chamber 2 are also longer in the front-rear direction than the left-right direction. Therefore, the bedding S is stored in the drying chamber with its length in the traffic direction Y.

[0015] In this way, by providing openings 21 in two places, the entrance 211 at the front and the opposite exit 212 at the rear, the entrance and exit of the cart 6 to the drying chamber 2 are separated, so that the movement of the cart 6 can be made in one direction without returning, and it is possible to separate the wet working space on the front side of the drying chamber 2 before the bedding is dried from the dry working space on the rear side of the drying chamber 2 after the bedding has been dried.

[0016] An air inlet A is provided at an upper portion of the left lateral side wall 22 among the inner peripheral side walls of the drying chamber 2, through which heated air from the air heating and blowing section 3 described below enters the drying chamber 2. In addition, an air outlet B is provided at a lower portion of the left lateral side wall 22, through which air whose temperature has been reduced after drying bedding S such as mattresses and futons in the drying chamber 2 can exit.

[0017] Reference numeral 24 denotes a distribution plate provided so that the hot air from the air inlet A is uniformly distributed within the drying chamber 2, and a plurality of distribution openings 241 are formed therein. The distribution opening 241 is formed near the right side wall 23, which is the side facing the air inlet A, so that when the hot air from the air inlet A is discharged to the air outlet B, a short circuit is unlikely to occur.

[0018] 3, the distributed openings 241 are provided approximately evenly distributed in the flow line direction Y. Therefore, hot air is blown out generally in the longitudinal direction of the bedding S placed on the cart 6.

[0019] Reference numeral 26 denotes a guide rail which serves as the carriage guide section, and is provided longitudinally along the direction of the movement line Y on the bottom wall 25 of the drying chamber 2 which is the fixed section, and together with a cylindrical body 69 which serves as the carriage guided section of the carriage 6 described later, forms a carriage guide mechanism 100. The cylindrical bodies 69 are cylindrical bodies shorter than the height of the wheels W, and are rotatably mounted in pairs on the bottom wall 65 of the trolley 6 at the front, central, and rear positions in the fore-and-aft direction of the trolley 6, sandwiching the guide rail, which is the trolley guide portion 26, from both sides. This carriage guide mechanism 100 allows the carriage 6 to enter and leave the drying chamber 2 without coming into contact with the left and right side walls 22, 23 of the drying chamber 2. Reference numeral 27 denotes a stopping portion formed on the bottom wall 25, which serves to position the cart 6 in the direction of flow line Y when it enters the drying chamber 2, so that the air exhaust port 68 of the cart 6 coincides with the air outlet B in the direction of flow line Y. In this specification, the fixed portion refers to the housing which is the structure of the present device, the drying chamber which is fixed to the housing, the air heating and blowing portion, and the members which are fixed to them.

[0020] The air inlet A is an opening 221 formed in the left lateral side wall 22 of the drying chamber 2, and is connected to the air heating and blowing section 3. To explain in more detail, the opening 221 is connected to the air heating and blowing section 3 by a bellows-shaped hot air duct 4, and an opening 41K of one end 41 of the hot air duct 4 is attached to the opening 221 by a flanged cylinder 43, so that the opening 221 coincides with the opening 41K of the one end. An opening 42K of the other end 42 is attached to the outlet 311 of the circulation passage 31 of the air heating blower section 3 by a flanged cylinder 43, and the outlet 311 coincides with the opening 42K.

[0021] The air outlet B will be described with reference to Figures 1, 5, and 6. The air outlet B is an opening 51k at one end 51 of the cylindrical hot air connecting part 5 facing the inside of the drying chamber 2 through an insertion opening 222 formed in the left side wall 22 of the drying chamber 2. This cylindrical hot air connecting part 5 is a bellows body and is expandable and contractible. Therefore, the other end 52 is a fixed end fixed to the blower 33 of the heated air generating blower part 3 which is the fixed part, but one end 51 is a free end that is not fixed to the fixed part so as not to move, and therefore the opening 51k moves toward and away from the air exhaust opening 68 of the cart by the drive part and guide mechanism described later.

[0022] To further explain the cylindrical hot air connector 5, four bellows tubes 53 are used here. One end 531 and the other end 532 of each bellows tube 53 are attached to a flanged cylinder 54.

[0023] The four bellows tubes 53, each having a flanged cylinder 54 attached to both ends 531, 532, have one end 531 attached to a circular window 551 in a frame body 55 and the other end 532 attached to a circular window 561 in a frame body 56, and the four bellows tubes 53 form a cylindrical hot air connection part 5 of the assembly. The cylindrical hot air connector 5 of the assembly is inserted through an insertion opening 222 formed in the left wall 22 of the drying chamber 2, with one end 51 facing the drying chamber 2. The other end 52 is fixed to the blower 33.

[0024] Reference numeral 57 denotes an abutment plate having an opening 571 formed therein, and is attached to the front surface of the frame body 55. Therefore, the opening 531k of one end portion 531 of each bellows tube 53 faces this opening 571 and abuts against the periphery of an air exhaust port 68 of the dolly 6, which will be described later. Reference numeral 58 denotes a packing material attached to the outer edge of the abutment plate 57, which improves airtightness when it abuts against the periphery of the air exhaust port 68 of the carriage 6.

[0025] Reference numeral 59 denotes a packing material attached to the outer periphery of the frame body 55 , which loosely closes the gap C between the insertion opening bent wall 222 a of the insertion opening 222 and the outer periphery of the frame body 55 . The gap C is formed to allow smooth movement in the cross direction X of one end 51 of the cylindrical hot air connecting part 5 so that it abuts against the periphery of the air exhaust port 68 of the cart 6, but is also installed as necessary to ensure appropriate sealing of the gap C.

[0026] According to this, since the cylindrical hot air connector is a bellows body, one end is a free end and can move toward and away from the air exhaust opening of the cart even if the other end is a fixed end fixed to the fixed part. Since only one end needs to move, the load required for movement is small. Furthermore, since the cylindrical hot air connection part 5 is a bellows tube, when the housing 1 and the housing 30 of the heated air generating and blowing part 3 described later are separate as in this embodiment, the bellows hot air duct 4 can absorb any misalignment between them when installing the device.

[0027] Reference numeral 3 denotes the air heating blower section, which is provided with a circulating air duct 31, a heat source 32, and a blower 33 inside a housing 30. As described above, the outlet 311 of the circulating air duct 31 is connected to the other end 42 of the hot air duct 4, and the inlet 312 is connected to the blower 33. The heat source 32 here is a gas burner 321 and a heat exchanger 322, and is surrounded by the circulating air duct 31. The blower 33 sends out the air heated by the heat source 32 from the air inlet A to the drying chamber 2, while sucking in the air cooled by passing through the bedding S from the air outlet B, and obtains air heated again by the heat source 32 and sends it to the drying chamber 2. In this manner, the air heating blower section 3 (circulation air passage 31) and the drying chamber 2 communicate with each other via the air inlet A and the air outlet B, forming a hot air circulation passage.

[0028] Reference numeral 313 denotes an exhaust pipe taken out from the circulating air passage 31, which exhausts a portion of the moist air that has passed through the bedding S in the drying chamber 2 and has cooled down. Reference numeral 314 denotes a damper installed inside the exhaust pipe 313, which can be opened and closed by a motor M or the like, and is controlled by a control circuit (not shown) so that the damper 314 is open during the period when there is a lot of moist air at the start of drying, for example, for 20 minutes from the start, and closed for the remaining 40 minutes. The air after the moist air has been exhausted enters the drying chamber 2 through the air passage 11. Incidentally, instead of time management using a timer, a humidity sensor may be installed to control the humidity by opening and closing the damper 314.

[0029] Reference numeral 34 denotes a connecting pipe connecting the blower 33 and the cylindrical hot air connecting portion 5, the outlet 341 of which is attached to the suction port 331 of the blower 33, and the opening 52K of the other end 52 of the cylindrical hot air connecting portion 5 is attached to the inlet 342.

[0030] The cart 6 is box-shaped and smaller than the drying chamber 2, with a gap G between its peripheral walls and the inner peripheral wall of the drying chamber 2. In the direction of travel in entering the drying chamber 2, the cart 6 is made up of peripheral walls including a front wall 61, a left side wall 62, a right side wall 63, and a rear side wall 64, and a bottom wall 65. The top surface 66 facing the bottom wall 65 is open, and a placement plate 67 having a large number of air passage holes 67a is provided thereon to serve as a placement portion for bedding S. On the side of the upper periphery of the placement plate 67, which serves as the placement section, where bedding is taken in and out (in the illustrated example, the side opposite the air exhaust port 68 described later), there is no wall to make it easier to take in and out the bedding, and on the other three sides, there are stop walls for when placing the bedding. These stop walls do not need to extend over the entire length of the three sides, and may be provided partially. In addition, H denotes operating handles attached to the front and rear of the cart 6.

[0031] Reference numeral 68 denotes an air exhaust port formed in the left side wall 62 of the cart 6. Since the bedding S is breathable, the hot air passes through the inside of the bedding S placed on the placement plate 67, which is formed with a large number of air passage holes 67a, by suction from the blower 33 of the air heating and blowing section 3, and dries the bedding S. Then, the air that has passed through the inside of the bedding S and cooled is discharged from this air exhaust port 68.

[0032] The dolly 6 is moved in and out of the drying chamber 2 by wheels W provided at four locations on the front, rear, left and right sides of the bottom wall 65. For the dolly 6 to move in and out of the drying chamber 2, it is necessary for the dolly 6 to maintain an appropriate distance from the left and right lateral side walls 22, 23 of the drying chamber 2. In particular, it is important to manage the distance between the left lateral side wall 62 of the dolly 6 and the left lateral side wall 22 of the drying chamber 2. This is because the cylindrical hot air connector 5 needs to be in proper contact with the air exhaust port 68 of the dolly 6. For this reason, the dolly guide mechanism 100 is provided.

[0033] As shown in FIG. 7, the drive unit 7 that moves the cylindrical hot air connecting portion 5 in the cross direction X is made up of a drive force transmission means 72 provided between an operation portion 71 and the cylindrical hot air connecting portion 5. The driving force transmission means 72 is composed of a rack 721 provided on the frame 55 of the hot air connecting part 5, an operating shaft 724 and a shaft 723 rotatably attached to the fixed part, bevel gears 725 and 726 attached thereto, and a pinion 722. The operating part 71 is attached to the operating shaft 724.

[0034] When the operating unit 71 is rotated, a driving force is transmitted to the cylindrical hot air connecting portion 5 via the driving force transmission means 72, which includes the operating shaft 724, bevel gears 725, 726, shaft 723, pinion 722, and rack 721, thereby moving the cylindrical hot air connecting portion 5 in the cross direction X.

[0035] As a result, the opening 51 k of one end 51 of the cylindrical hot air connecting portion 5 , which is the air outlet B, moves toward and away from the air exhaust opening 68 of the carriage 6 .

[0036] The operation unit 71 is provided on both the front operation unit 711F and the rear operation unit 711R on the left side wall 22 of the drying chamber 2. As a result, in a pass-through type drying device, when the dolly 6 is put into the drying chamber 2 and the cylindrical hot air connecting unit 5 is brought into contact with the air exhaust port 68 of the dolly 6, the rear operation unit 711R can be used for operation, and when the cylindrical hot air connecting unit 5 is moved away from the air exhaust port 68 of the dolly after drying is completed, the front operation unit 711F close to the opening 21 which becomes the exit 212 of the drying chamber 2 can be used for operation.

[0037] In Figures 7 and 8, reference numeral 8 denotes a tubular hot air connection guide mechanism when the tubular hot air connection 5 moves in the cross direction X, and is composed of a roller 81 which is the guided part provided on the frame body 55 and a rail 82 which is the guide part provided on the insertion opening folding wall 222a which is the fixed part. The cylindrical hot air connecting portion 5 can be moved in the cross direction X by the driving portion 7 with a roller 81 as a guided portion thereof being guided by a rail 82 as a guide portion provided on a fixed portion. According to this, one end of the cylindrical hot air connector is guided by the guide mechanism and can move smoothly.

[0038] Fig. 9 shows another embodiment of the cylindrical hot air connector. Here, a non-stretchable rectangular cylinder 91 is used as the cylindrical hot air connector 9. This cylinder 91 is a single piece, with one end 911 and the other end 912 being free ends that are not fixed anywhere, and their openings 911k, 912k are rectangular openings. The cylindrical hot air connecting portion 9 is inserted through the insertion opening 222 formed in the left side wall 22 of the drying chamber 2, with the opening 911k of one end 911 facing the drying chamber 2 and the other end 912 being fitted inside the cylindrical portion 353 of the second connecting tube 35, and the opening 912k communicating with the blower 33 via the connecting tube 34 and the second connecting tube 35. Then, in the same manner as in the previous embodiment, the cylindrical body 91 is moved as a whole in the cross line direction X by the drive unit 7 and the cylindrical hot air connecting portion guide mechanism 800. Therefore, when the opening 911k at one end 911 of the cylindrical body 91, which serves as the air outlet B, moves toward or away from the air exhaust port 68 of the carriage 6, the opening 912k at the other end 912 also moves.

[0039] The cylindrical hot air connecting part guide mechanism 800, which moves the cylindrical hot air connecting part 9 in the cross direction X, is composed of a cylindrical part 353 of the second connecting cylinder 35 which serves as a guide part, and a cylindrical part 913 of the cylindrical body 91 which serves as a guided part. The cylindrical part 913 is fitted inside the cylindrical part 353 of the second connecting cylinder 35 which serves as a fixed part, and is slid by the drive part. In the driving unit 7, the rack 721 is attached to the cylindrical portion 913 and the pinion 722 is attached to the fixed portion, in the same manner as in the previous embodiment.

[0040] The second connecting tube 35 of the tube portion 353 which serves as the guide portion of the tubular hot air connection portion guide mechanism 800 has an opening 351K at one end 351 which serves as the inlet of the tube body 91, and an opening 352K at the other end 352 which is fixedly connected to the inlet 342 of the connecting tube 34 by screws or the like. In this way, by configuring the cylindrical hot air joint guide mechanism 800 by the guide tube 353 and the tube portion 913, the cylindrical hot air joint is guided by the guide mechanism and can move smoothly. According to this embodiment, the cylindrical hot air connector and the cylindrical hot air connector guide mechanism 800 have a simple structure.

[0041] Another embodiment of the dolly will be described with reference to Figures 10 and 11. This dolly 600 is also box-shaped like the previous embodiment, and is a box body smaller than the drying chamber 2 with a gap G between its peripheral wall and the inner peripheral wall of the drying chamber 2. The dolly 600 that enters and leaves the drying chamber 2 is also longer in the front-rear direction than in the left-right direction. The major difference from the previous embodiment is that this trolley 600 is two-stage and consists of a trolley lower box body 610 and a trolley upper frame body 620 which is located above the trolley lower box body 610 and is independent of the trolley lower box body 610.

[0042] The dolly lower box body 610 is composed of a lower box body 610a, an air exhaust opening 612a, and a bedding placement section 617. The lower box body 610a has peripheral side walls, i.e., a front side wall 611, a left side wall 612, a right side wall 613, and a rear side wall 614, a bottom wall 615, and an upper surface 616 facing the bottom wall 615. The air exhaust opening 612a is formed in the left side wall 612. The upper surface 616 is an upper surface opening 616a, and a bedding lower placement section 617 is located between the upper surface opening 616a and the air exhaust opening 612a. The bedding lower placement section 617 is provided with a bedding placement plate 618 with a number of air passage holes 618a formed therein. 619 denotes dolly wheels attached to the bottom wall 615.

[0043] The right side wall 613 is divided into a right lower wall 613a and a right upper wall 613b. The upper edge of the right lower wall 613a is slightly above the placement plate 618, and the upper edge of the right upper wall 613b is attached to the right edge of the bottom surface of the cart upper frame 620 by a hinge 640 so as to be lifted upward to open. Therefore, when the right upper wall 613b is lifted upward, a side opening 630 for inserting and removing bedding is formed in the upper part of the right wall 613. The right upper wall 613b is engaged with an engaging portion (not shown) and is maintained in a raised state. In the above explanation, the right side wall 613 is divided into an upper and lower right side wall, and the upper right wall 613b is lifted upward. However, the right side wall 613 is not divided into an upper and lower right side wall, and the entire right side wall 613 can be opened and closed freely. Further, the side opening 630 for entering and exiting the bedding is formed by opening the right side wall 613, but it may be formed on another side surface, for example, the left side surface 612.

[0044] The cart upper frame 620 is in the shape of a window frame having an opening 625, and a bedding upper placement portion 626 is provided in the opening 625. A placement plate 627 having a large number of air passage holes 627a formed therein is placed on the bedding upper placement portion 626. Even in this embodiment, the side of the bedding upper placement section 626 where bedding is taken in and out (the side opposite the air exhaust port 612a in the illustrated example) has no wall to make it easier to take in and out the bedding, and is at approximately the same height as the placement plate 627, and the other three sides are provided with stopping walls 621, 622, 624 for when placing the bedding, but these stopping walls do not need to extend over the entire length of the three sides and may be provided partially. Numeral 650 denotes upper frame moving wheels attached to the underside of the carriage upper frame 620, which roll on the frame upper surface 610b of the lower box frame 610a, causing the carriage upper frame 620 to move as shown in FIG. 11b.

[0045] This movement of the cart upper frame 620 opens a part of the top opening 616a of the cart lower box body 610, forming an upper opening 660 for inserting and removing bedding. This upper opening 660 for inserting and removing bedding and the side opening 630 for inserting and removing bedding form a composite opening 670, making it easy to insert bedding into the lower placement portion 617. The upper frame 620 of the carriage is adapted to stop moving at a stopper (not shown), for example a wheel stop, at a position where the upper opening 660 for entering and exiting the bedding is formed.

[0046] In the case of a cart with two-stage placement sections, the bedding is placed on the bedding lower placement section 617 of the cart lower box body 610 through the composite opening 670 by first lifting the right upper wall 613b and then moving the cart upper frame body 620 as shown in Fig. 11B. Next, the cart upper frame body 620 is returned to Fig. 11A and the right upper wall 613b is lowered to close the side opening 630 for entering and exiting bedding. Then, the bedding is placed on the bedding upper placement section 627.

[0047] In this embodiment, the upper frame body 620 of the cart is slidable to generate the upper opening 660 for inserting and removing bedding, but the upper frame body 620 of the cart can also be hinged to the lower box body 610 of the cart so that the side where the side opening 630 for inserting and removing bedding is formed is raised (for example, raised about 30 degrees from the top opening 616a) to generate the upper opening 660 for inserting and removing bedding. In this case, it is advisable to provide a support rod so that bedding can be inserted through the composite opening while the upper frame body 620 of the cart is raised. Also, although the right upper wall 613b is of a lifting type, it may be of a descending type so as to be lowered toward the right lower wall 613a. In addition, in this embodiment, wheels are provided on the trolley upper box body 620 so that it can roll on the frame upper surface 610b of the trolley lower box body 610, but the wheels can also be attached with a portion of the upper part protruding from the frame upper surface 610b of the trolley lower box body 610, and the trolley upper box body 620 can be placed on the wheels and slid.

[0048] Although the embodiment of the present invention has been described above with reference to the drawings, the present invention is not limited thereto. For example, the drying chamber 2 is provided with two openings, 211 serving as an entrance for the dolly 6 and 212 serving as an exit, but a single opening on the front side of the drying chamber 2 may be used both as an entrance and an exit.

[0049] The heat source has been described as a gas burner, but it can also be an electric heater. In addition, although the bellows-shaped hot air duct 4 has been described as a single bellows-shaped duct, multiple bellows ducts can be used, as in the cylindrical hot air connector 5. Furthermore, it can also be a non-stretchable cylinder, as in the cylindrical hot air connector 9.

[0050] In addition, in the above embodiment, the platform for placing the bedding S is horizontal and the bedding S is placed horizontally, but it is also possible to make the platform 67 in an inverted V shape and place the bedding S in a mountain shape.

[0051] 7 and 8, the cylindrical hot air connecting portion guide mechanism 8 is configured with a roller 81 that is a guided portion provided on the frame body 55 and a rail 82 that is a guide portion provided on the insertion opening bent wall 222a that is a fixed portion, but the guided portion may be a rail and the guide portion may be a roller. Also, both the guided portion and the guide portion may be rails, one rail may have a C-shaped cross section, and the other rail may be a rail that is fitted inside the C-recessed space of the C-shaped rail.

[0052] In addition, the carriage guide mechanism 100 for guiding the carriage 6 into the drying chamber 2 is configured with the rail-shaped carriage guide portion 26 provided on the bottom wall 25 of the drying chamber and six cylindrical carriage guided portions 69 provided on the bottom wall 65 of the carriage 6 cooperating therewith, but the carriage guide portion 26 may be cylindrical and the carriage guided portions 69 may be rail-shaped. In addition, both guide portions may be rail bodies, but at least one of them is rail-shaped. In addition, a guide rail serving as a cart guide portion protruding inward (in the cross direction X) can be provided along the traffic flow direction Y at the bottom of the left and right lateral side walls 22, 23 of the drying chamber 2, and a cart guide mechanism 100 can be provided on the outer surfaces of the left and right side walls of the cart 6, in which rollers abut against the guide rails serving as the cart guided portion.

[0053] Furthermore, in the illustrated example, the driving force transmission means of the drive unit that moves the cylindrical hot air connecting part 5 in the cross direction X is composed of a rack 712 provided on the frame 55 of the cylindrical hot air connecting part 5, a pinion 722 that cooperates with it, a shaft 723 that rotates the pinion 722, an operating shaft 726 that rotates by operating the operating part 71, and bevel gears 725, 726 that connect the operating shaft 726 and the shaft 723, and is a manual type that rotates the operating part 71, but the driving force transmission means can also be, for example, a power source and a motor, and a switch is provided as the operating part, and the pinion 722 is rotated by the motor. [Explanation of symbols]

[0054] A...air inlet, B...air outlet, 2...drying chamber, 21...opening, 222...insertion opening, 3...air heating blower section, 32...heat source, 33...blower, 5...cylindrical hot air connector, 6...cart, 68...air exhaust opening, 7...driving section, 8...cylindrical hot air connector guide mechanism, 9...cylindrical hot air connector

Claims

1. A bedding drying device comprising: a drying chamber; an air heating and blowing unit including a heat source for heating air to supply warm air to the drying chamber and a blower for circulating the air between the drying chamber and the heat source; and a cart that can enter and exit the drying chamber; The drying chamber includes an opening serving as an entrance and exit for the cart, an air inlet for introducing the heated air from the air heating and blowing unit, and an air outlet for discharging the air that has passed through the clothes and the like and cooled; the cart is a box-shaped body smaller than the drying chamber, with a gap between its peripheral side wall and the inner peripheral side wall of the drying chamber, with wheels on the bottom wall of the box-shaped body, with a placement section for placing bedding or the like having air passage holes formed on the upper surface facing the bottom wall, and with an air exhaust opening on the peripheral side wall of the box-shaped body facing the air outlet of the drying chamber; This bedding drying device is characterized in that the air outlet is an opening at one end of a cylindrical hot air connection part that faces the inside of the drying chamber through an insertion opening provided in the side wall of the drying chamber, the opening is moved toward and away from the air exhaust opening of the cart by a drive part and a cylindrical hot air connection part guide mechanism, and the opening at the other end of the cylindrical hot air connection part is connected to the air heating blower part.

2. 2. The bedding drying device according to claim 1, wherein the cylindrical hot air connecting portion is an expandable bellows body, one end of the bellows body being a free end and the other end being a fixed end.

3. The bedding drying device according to claim 1, characterized in that the cylindrical hot air connector is a non-stretchable cylinder, with both ends being free ends and the entire cylindrical hot air connector being movable.

4. 4. The bedding drying device according to claim 1, wherein the tubular hot air connector guide mechanism comprises a guided portion provided on the tubular hot air connector and a guiding portion provided on the fixed portion.

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