Supporting Device for Deck Support Frame and Method for installing the Deck Support Frame using the same
The drying device addresses inefficiencies in conventional racks by rotating to track sunlight and humidity, enhancing drying performance and space utilization through intelligent sun tracking and air circulation.
Patent Information
- Application Number
- KR1020240034748
- Authority / Receiving Office
- KR · KR
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2024-03-12
- Publication Date
- 2026-11-05
- Estimated Expiration
- 2044-03-12
AI Technical Summary
Conventional clothes drying racks fail to effectively utilize sunlight due to a fixed position, leading to inefficient drying performance and suboptimal space utilization.
A drying device that tracks the sun's position and rotates the drying rack, utilizing a process unit to compare light intensities and a control unit to adjust the rack's orientation for optimal sunlight exposure, along with humidity sensing to evenly dry items and an air circulation system for enhanced drying.
Improves drying performance by efficiently utilizing sunlight, enhances space utilization, and ensures even drying by rotating the rack based on sunlight and humidity levels, with additional air circulation for improved efficiency.
Smart Images

Figure 112024027935107-PAT00002_ABST
Abstract
Description
Technology Field
[0001] The present invention relates to a drying device for a material to be dried, and more particularly to a drying device for a material to be dried that improves the drying performance of the material to be dried by tracking the position of the sun and causing the drying rack to rotate. Background Technology
[0002] The present invention relates to a drying device for a material to be dried. The material to be dried may be, for example, clothing that requires drying after washing. Conventional clothes drying racks generally have a fixed position for hanging the material to be dried, whereas recently, drying racks with a structure that allows the height of the rack to be adjusted from top to bottom to hang the material are being used. However, such conventional clothes drying racks have the disadvantage of not being able to effectively utilize sunlight because the position of the material to be dried is maintained in a fixed state on the rack. Accordingly, the present invention proposes a drying device that improves drying performance by effectively utilizing sunlight and increases space utilization. The problem to be solved
[0003] The present invention has been devised to solve the requirements described above, and aims to provide a drying device for a workpiece to be dried that improves the drying performance of the workpiece by tracking the position of the sun and causing the drying rack to rotate. means of solving the problem
[0004] A drying device for a material to be dried according to one embodiment of the present invention comprises: a drying rack on which the material to be dried is located; a process unit for tracking the path of the sun; a rotation unit for rotating the drying rack so that the material to be dried faces the sun according to the path of the sun; and a control unit for controlling the rotation unit to rotate the drying rack in a direction calculated by the process unit.
[0005] Additionally, the process unit comprises: a light receiving unit including a first sensor for receiving sunlight, a second sensor disposed adjacent to the first sensor for receiving sunlight, and a partition disposed between the first sensor and the second sensor to spatially separate the first and second sensors; and a comparison unit for comparing the intensity of light sensed by the first and second sensors; and the control unit may rotate the drying rack toward the one with the greater light intensity between the first sensor and the second sensor based on the judgment of the comparison unit.
[0006] Additionally, the humidity sensing unit includes a plurality of humidity sensors for sensing the humidity of the object to be dried, wherein the humidity sensing unit senses the humidity of different areas by each of the humidity sensors spaced apart from each other, and when the difference in humidity between the area with the highest humidity and the area with the lowest humidity among the humidity sensors exceeds a predetermined range, the control unit may rotate the drying rack so that the object to be dried corresponding to the area with the highest humidity faces the sun.
[0007] Additionally, the rotating part may include a rotating shaft part that rotatably supports the drying rack; a column part that accommodates the rotating shaft part; and a power providing part that provides power to rotate the rotating shaft part.
[0008] In addition, when the intensity of light sensed by the light receiving unit of the process unit is smaller than a predetermined reference value, the control unit can control the rotating unit in a mode of stopping the drying unit or rotating it at a predetermined constant speed.
[0009] In addition, the rotating part includes a column part that supports the drying rack, the column part is formed in the shape of a cylinder or a polygonal column, and the humidity sensor may be spaced apart in the circumferential direction of the column part.
[0010] Additionally, the drying rack comprises: a mounting frame forming an outer perimeter; a connecting part formed on the central side of the mounting frame to be coupled to the rotating part; and a connecting frame connecting the mounting frame to the connecting part, wherein the mounting frame may have hanging grooves formed at predetermined intervals to hang objects to be dried.
[0011] Additionally, the column section includes a ventilation passage through which air flows from the lower side to the upper side of the inner side, and includes an external air supply section in which a plurality of through holes are formed in a circumferential direction by penetrating the outer wall of the column section to allow air to communicate from the inner side to the outer side, and the angle formed by the direction of the air ejected through the through holes with the horizontal plane can be formed to increase as it goes toward the lower side of the column section. Effects of the invention
[0012] The drying device for a material to be dried according to the present invention can improve the drying performance of the material to be dried by tracking the position of the sun and causing the drying rack to rotate.
[0013] In addition, the drying rack on which the item to be dried is placed rotates, allowing the item to be placed on the rack while rotating it to the desired position. This enables convenient placement of the item, and since the user can place the item on the rack while minimizing movement within the space where the drying device is located, the space utilization of the drying device can be improved.
[0014] In addition, while efficiently utilizing sunlight, the control unit can rotate the drying rack, thereby facilitating air circulation and improving the drying performance of the product.
[0015] In addition, the humidity of the object to be dried is sensed, and based on the relative humidity difference, the object with high humidity can be rotated to face the sun, thereby enabling efficient overall drying of the object.
[0016] In addition, external air is supplied to the workpiece side, and the external air from the column section is effectively transferred to the workpiece side, thereby providing the effect of improving drying performance. Brief explanation of the drawing
[0017] FIG. 1 is a block diagram of a drying device according to one embodiment of the present invention, FIG. 2 is a perspective view of a drying device according to one embodiment of the present invention, FIG. 3 is a bottom view of a drying rack employed in one embodiment of the present invention, FIG. 4 is a block diagram of a configuration controlled by a control unit employed in one embodiment of the present invention, FIG. 5 is a perspective view of a light receiving member provided in a support member employed in one embodiment of the present invention. Fig. 6 is a side view of Fig. 5, FIG. 7 is a plan view excluding the drying rack in a drying device according to one embodiment of the present invention, FIG. 8 is a schematic diagram illustrating the appearance of humidity in a plurality of regions being sensed by a plurality of humidity sensors employed in one embodiment of the present invention. FIG. 9 is a block diagram illustrating various modes of operation states by a control unit employed in one embodiment of the present invention, FIG. 10 is a cross-sectional view of a drying device according to one embodiment of the present invention. Specific details for implementing the invention
[0018] Hereinafter, various embodiments of the present invention are described in conjunction with the accompanying drawings. Since various embodiments of the present invention may be subject to various modifications and may have various forms, specific embodiments are illustrated in the drawings and described in detail. However, this is not intended to limit the various embodiments of the present invention to specific forms, and it should be understood that they include all modifications and / or equivalents and substitutions that fall within the spirit and scope of the various embodiments of the present invention. In relation to the description of the drawings, similar reference numerals have been used for similar components.
[0019] Expressions such as "comprising" or "may comprise" that may be used in various embodiments of the present invention indicate the existence of the disclosed function, operation, or component, etc., and do not limit one or more additional functions, operations, or components, etc. Furthermore, in various embodiments of the present invention, terms such as "comprising" or "having" are intended to specify the existence of the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.
[0020] When it is stated that a component is "connected" to another component, it should be understood that the component may be directly connected to the other component, or that a new component may exist between the component and the other component. On the other hand, when it is stated that a component is "directly connected" or "directly coupled" to another component, it should be understood that no new component exists between the component and the other component.
[0021] The terms used in the various embodiments of the present invention are used merely to describe specific embodiments and are not intended to limit the various embodiments of the present invention. The singular expression includes the plural expression unless the context clearly indicates otherwise.
[0022] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the various embodiments of the present invention pertain.
[0023] Terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in the various embodiments of the present invention.
[0025] Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. FIG. 1 is a block diagram of a drying device according to an embodiment of the present invention, and FIG. 2 is a perspective view of a drying device according to an embodiment of the present invention. FIG. 3 is a bottom view of a drying rack employed in an embodiment of the present invention, and FIG. 4 is a block diagram of a configuration controlled by a control unit employed in an embodiment of the present invention. FIG. 5 is a perspective view of a light receiving unit provided in a support member employed in an embodiment of the present invention, and FIG. 6 is a side view of FIG. 5. FIG. 7 is a plan view of a drying device according to an embodiment of the present invention excluding the drying rack, and FIG. 8 is a schematic diagram illustrating the sensing of humidity in a plurality of areas by a plurality of humidity sensors employed in an embodiment of the present invention. FIG. 9 is a block diagram illustrating various modes of operation by a control unit employed in an embodiment of the present invention, and FIG. 10 is a cross-sectional view of a drying device according to an embodiment of the present invention.
[0027] The drying device (100) for a material to be dried according to the present invention relates to a device for drying a material to be dried. As illustrated in FIG. 1, the present invention relates to a drying device (100) capable of performing drying while tracking the position of sunlight, taking into account the position and humidity of the material to be dried. According to the present invention, the material to be dried may include various objects containing moisture. For example, it may be laundry such as wet clothes after washing, agricultural products requiring drying, or feed grass requiring drying. However, the material to be dried is not limited to the examples above and may include various objects.
[0029] A drying device (100) for a material to be dried according to one embodiment of the present invention includes a drying rack (10), a process unit (20), a rotation unit (30), and a control unit (40).
[0031] The above drying rack (10) is provided to position items to be dried. As shown in FIG. 2, the drying rack (10) according to the present embodiment can be used to hang and position laundry. However, the drying rack (10) can be used to position items to be dried, and for example, it may be formed with a plate-like structure so that items to be dried can be spread out and positioned on its upper surface. That is, the shape of the drying rack (10) is not limited to the form shown in FIG. 2. Hereinafter, according to the present embodiment, a drying rack (10) manufactured to position laundry when the items to be dried are laundry will be described as an example.
[0032] As illustrated in FIGS. 2 and 3, according to the present embodiment, the drying rack (10) includes a mounting frame (11), a connecting part (12), and a connecting frame (13).
[0033] The mounting frame (11) is a part that forms the outer perimeter, and according to the present embodiment, it is made in a circular shape. Of course, the shape of the mounting frame (11) is not limited to a circular shape, and structures such as a hollow polygon or an ellipse are also possible. According to the present embodiment, hanging grooves (13) are formed at predetermined intervals in the mounting frame (11) so that items to be dried can be hung. When hanging clothes using a clothes hanger, the hook portion of the clothes hanger can be inserted into the hanging groove (13) to use it.
[0034] The above coupling part (12) is provided to connect the rotating part (30) at the center side of the mounting frame (11). The coupling part (12) may have a coupling structure of a groove and a protrusion so that the rotating part (30) is connected and the rotating part (30) does not detach. As shown in FIG. 3, a coupling groove is formed on the bottom surface of the coupling part (12), and the upper side of the rotating part (30) can be fitted into the coupling groove to be detachably coupled. The drying rack (10) is separable from the rotating part (30), and when the drying rack (10) is not in use, it can be separated from the rotating part (30) and stored.
[0035] The connecting frame (13) is a part that connects the mounting frame (11) to the connecting part (12). According to the present embodiment, the connecting frame (13) is formed by dividing the circular mounting frame (11) into four parts. Of course, the number and shape of the connecting frame (13) are not limited to the shape shown in FIG. 2. The connecting frame (13) can be formed with a rigidity sufficient to maintain the rigidity of the mounting frame (11) when the object to be dried is positioned on the mounting frame (11).
[0037] The process unit (20) is provided to track the path of the sun. According to the present embodiment, the process unit (20) includes a light receiving unit (21) and a comparison unit (22). The light receiving unit (21) is provided to receive sunlight, and according to the present embodiment, includes a first sensor (211), a second sensor (212), and a partition (213).
[0038] The first sensor (211) and the second sensor (212) are spaced apart from each other and perform light. The partition (213) is positioned between the first and second sensors (211, 212) to spatially separate the first and second sensors (211, 212). As shown in FIG. 4, The first sensor (211) and the second sensor (212) are adjacent to each other and have a structure in which they are positioned opposite each other by the partition wall (213). Depending on the position of the sun relative to the partition wall (213), a deviation occurs in the intensity of light received by the first sensor (211) and the second sensor (212). That is, a difference in illuminance occurs between the point where the first sensor (211) is located and the point where the second sensor (212) is located relative to the partition wall (213).
[0039] The comparison unit (22) is provided to compare the light intensity sensed by the first sensor (211) and the second sensor (212). When the sun is in the same line as the extension direction of the partition wall (213), the light intensity received by the first sensor (211) and the second sensor (212) is substantially the same, but when the sun is positioned off to one side with respect to the extension direction of the partition wall (213), a difference occurs in the light intensity received by the first sensor (211) and the second sensor (212). When the comparison unit (22) determines the light intensity by the first and second sensors (211, 212), the control unit (40) can control the drying rack (10) to rotate toward the one with the greater light intensity among the first and second sensors (211, 212).
[0040] According to the present embodiment, the control unit (40) controls the partition wall (213) to rotate while tracking the direction of the sun, and controls the rotation unit (30) to rotate in conjunction with the partition wall (213), thereby controlling the drying rack (10) connected to the rotation unit (30) to rotate. As shown in FIG. 6, the partition wall (213) is coupled to a support plate (214), and the support plate (214) is coupled so as to be rotatable around a rotation axis (215). The control unit (40) can control the rotation axis (215) to rotate toward the side with greater light intensity according to the judgment of the comparison unit (22).
[0042] The above-mentioned rotating part (30) is provided to rotate the drying rack (10) so that the object to be dried faces the sun along the path of the sun. The above-mentioned rotating part (30) includes a rotating shaft part (31), a column part (32), and a power providing part (33).
[0043] The above-described rotating shaft portion (31) rotatably supports the drying rack (10). According to the present embodiment, the upper end of the rotating shaft portion (31) can be inserted into a coupling groove formed on the lower surface of the coupling portion (12) of the drying rack (10) and secured. According to the present embodiment, the upper end of the rotating shaft portion (31) is formed in a "+" shape and inserted into the coupling groove, but the shape is not limited thereto.
[0044] The column section (32) accommodates the rotation shaft section (31) and, overall, functions to support the drying rack (10) by being erected vertically. The column section (32) may be formed in the shape of a cylinder or a polygonal column. A support section (34) that supports the column section (32) may be provided at the bottom of the column section (32). According to the present embodiment, the support section (34) is provided to support the column section (32) in the shape of a box approximately in the shape of a cube, and the mechanical mechanism of the drying device (100) according to the present invention embodiment may be accommodated inside the support section (34). According to the present embodiment, the column section (32) is formed in the shape of a square column, and a humidity sensor (51), described later, is attached to each side of the square column.
[0045] The power providing part (33) provides power to rotate the rotation shaft part (31). The power providing part (33) may be a motor. For example, it may be a step motor capable of rotating by a specific angle. However, the motor is not limited to a step motor. In addition, according to the present embodiment, the power providing part (33) is provided on the upper part of the column part (32), but its position may be variable and may be provided inside the support part (34).
[0047] The control unit (40) controls the rotation unit (30) to rotate the drying rack (10) in the direction of the sun calculated by the process unit (20) as illustrated in FIG. 4. According to the present embodiment, when the first and second sensors (211, 212) of the light receiving unit (21) each sense the intensity of light and the comparison unit (22) determines which of the first and second sensors (211, 212) has a higher intensity of light, the control unit (40) can provide a first mode of rotating the drying rack (10) in the direction of the higher intensity of light. Referring to FIG. 9, the control unit (40) can provide a second to fourth mode.
[0048] The above second mode is a mode in which the humidity of a predetermined area is sensed by a humidity sensor (51) that senses the humidity of the object to be dried, and the drying rack (10) is rotated so that the area with relatively low humidity faces the sun. The above second mode will be explained in more detail when describing the humidity sensing unit (50).
[0049] The third mode is a mode that maintains the drying rack (10) in a stationary state, and the fourth mode is a mode that rotates the drying rack (10) at a constant speed. When the intensity of light sensed by the light receiving unit (21) of the process unit (20) is less than a predetermined reference value, the device may be operated in the third mode or the fourth mode. The control unit (40) may control the drying device by switching to the first mode or the second mode while operating in the third mode or the fourth mode. For example, when the light intensity is less than the reference value due to cloudy or rainy weather, the device may be operated in the third mode or the fourth mode. Meanwhile, the third mode or the fourth mode may be selected by the user. The reference value may be set to a value sufficient to perform drying using sunlight. The user may select the desired mode through a controller provided in the drying device (100) according to the embodiment of the present invention. For example, the controller may be remotely controlled through an external device such as a mobile device.
[0051] According to an embodiment of the present invention, a humidity sensing unit (50) may be included.
[0052] A humidity sensing unit (50) is provided to sense the humidity of the object to be dried. According to the present embodiment, the humidity sensing unit (50) includes a plurality of humidity sensors (51) to sense the humidity of the object to be dried. Each of the humidity sensors (51) is spaced apart from one another and can sense the humidity of different areas. As shown in FIG. 7, according to the embodiment of the present invention, the humidity sensors (51) are placed on each side of the column unit (32). However, the arrangement of the humidity sensors (51) is not limited thereto. As shown in FIG. 8, the humidity sensors (51) coupled to the side of the column unit (32) can sense the humidity of areas A1, A2, A3, and A4, respectively. Each humidity sensor (51) constituting the humidity sensing unit (50) can measure the humidity of each area by dividing the area directly below the drying unit (10) into areas A1 to A4 when the object to be dried is placed on the drying unit (10).
[0053] The area with the highest humidity and the area with the lowest humidity sensed by each of the humidity sensors (51) are calculated, and if the difference exceeds a predetermined range, the control unit (40) can rotate the drying rack (10) so that the object to be dried, corresponding to the area with the highest humidity, faces the sun. In this way, when tracking the trajectory of the sun, the humidity value of the object to be dried is reflected to induce the object to be dried on the drying rack (10) to be dried evenly, and in this specification, such an operation method can be defined as a second mode.
[0055] Meanwhile, the drying device (100) for a material to be dried according to an embodiment of the present invention may include an air passage and an external air supply unit so as to improve drying efficiency by using external air.
[0056] The above air passage can be provided as a space within the column section (32) through which air flows from the lower side to the upper side. As shown in FIG. 10, an air passage is formed in the internal space of the column section (32) through which outside air is introduced and rises.
[0057] The above-mentioned external air supply unit is formed to include a plurality of through holes (60) formed by penetrating the outer wall of the column section (32) so that air introduced into the inner side of the column section (32) can communicate with and be ejected to the outside. The plurality of through holes (60) are formed in the circumferential direction of the column section (32). When the plurality of through holes (60) formed at the same height with respect to the column section (32) are treated as a single row, a plurality of rows are provided in the vertical direction of the column section (32).
[0058] According to the present embodiment, the angle formed by the direction of the air ejected through the through hole (60) with the horizontal plane is formed to increase as it goes toward the lower side of the column section (32). As shown in FIG. 10, the external air supply section may be provided in four rows from the upper side to the lower side of the column section (32). When the uppermost column is defined as the first column, and the second, third, and third columns are defined sequentially in the downward direction, the angle formed by the direction of air (T1) sprayed by the through hole (60) formed in the first column and the horizontal plane (L) is θ1, the angle formed by the direction of air (T2) sprayed by the through hole (60) formed in the second column and the horizontal plane (L) is θ2, the angle formed by the direction of air (T3) sprayed by the through hole (60) formed in the third column and the horizontal plane (L) is θ3, and the angle formed by the direction of air (T4) sprayed by the through hole (60) formed in the fourth column and the horizontal plane (L) is defined as θ4. At this time, the angle formed by the through hole (60) of each column with the horizontal plane (L) is formed to increase as it goes toward the lower side of the column section (32). That is, it is formed as θ1 < θ2 < θ3 < θ4.
[0059] In this way, the direction of the air ejected from the through hole (60) is directed upward, thereby facilitating the drying of the material to be dried on the upper side of the drying rack (10). Additionally, the angle formed between the direction of the air ejected from the through hole (60) and the horizontal plane (L) increases as it moves toward the lower side of the column section (32), and the direction of the air ejected from the through hole (60) located at the lowest side of the column section (32) is directed toward the outer area of the drying rack (10), so that the outside air is concentrated on the lower side of the drying rack (10) overall, allowing the outside air to be utilized efficiently to improve drying power.
[0060] A fan (70) and a motor (80) for introducing outside air may be arranged on the support member (34) on the lower side of the column member (32), and outside air introduced by the fan (70) may flow upward through the column member (32) and be sprayed toward the object to be dried through the outside air supply member.
[0062] Thus, the drying device (100) for a material to be dried according to the embodiment of the present invention improves the drying performance of the material to be dried by tracking the position of the sun and rotating the drying rack (10). In addition, by sensing the humidity of the material to be dried and rotating the drying rack (10) so that the material to be dried with high relative humidity faces the sun, the sunlight can be utilized efficiently.
[0063] In addition, the drying device (100) for the object to be dried according to the present embodiment can operate in various modes to dry the object under optimal operating conditions. For example, power consumption can be reduced by using a stop mode when the light intensity is below a predetermined reference value, and drying power can be improved by using a constant speed rotation mode with airflow when rotating. Meanwhile, the effect of effectively drying the object to be dried can be provided by introducing and spraying outside air.
[0065] Although the present invention has been described in detail with respect to preferred embodiments, the present invention is not limited to the above embodiments, and many variations may be provided within the scope of the present invention. Explanation of the symbols
[0066] 10... drying rack 11... mounting frame 12... joint part 13... connecting frame 14... hanging groove 20... process section 21... Receiving section 22... Comparative section 211... 1st sensor 212... 2nd sensor 213... bulkhead 214... support plate 215... pivot shaft 30... rotating part 31... Rotating shaft section 32... Column section 33... Power supply unit 34... Support unit 40... Control unit 50... Humidity sensing unit 51... humidity sensor 60... through hole 70... fan 80... motor 100... drying device
Claims
Claim 1 A drying rack on which an object to be dried is located; a process unit for tracking the path of the sun; a rotation unit for rotating the drying rack so that the object to be dried faces the sun according to the path of the sun; a control unit for controlling the rotation unit to rotate the drying rack in a direction calculated by the process unit; and a humidity sensing unit having a plurality of humidity sensors for sensing the humidity of the object to be dried, wherein the humidity sensing unit senses the humidity of different areas by each of the humidity sensors arranged spaced apart from each other, and when the difference in humidity between the area with the highest humidity and the area with the lowest humidity among the humidity sensors exceeds a predetermined range, the control unit rotates the drying rack so that the object to be dried corresponding to the area with the highest humidity faces the sun, and the rotation unit comprises a rotation shaft portion that rotatably supports the drying rack; and a column portion that accommodates the rotation shaft portion and supports the drying rack. A drying device for a material to be dried, comprising: a power supply unit that provides power to rotate the rotating shaft unit; wherein the column unit is formed in the shape of a cylinder or a polygonal column, and the humidity sensor is spaced apart in the circumferential direction of the column unit; and the drying rack comprises: a mounting frame forming the outer circumference; a coupling unit formed on the central side of the mounting frame to connect the rotating unit; and a connecting frame connecting the mounting frame from the coupling unit; wherein the mounting frame has hanging grooves formed at predetermined intervals to hang the material to be dried, and the column unit includes a ventilation passage through which air flows from the lower side to the upper side of the inner side, and an external air supply unit having a plurality of through holes formed in the circumferential direction through the outer wall of the column unit to allow air to communicate from the inner side to the outer side, wherein the angle formed by the direction of the air ejected along the central axis of the through holes with the horizontal plane is formed to increase as it goes toward the lower side of the column unit. Claim 2 A drying device for a workpiece according to claim 1, wherein the process unit comprises: a first sensor for receiving sunlight, a second sensor disposed adjacent to the first sensor for receiving sunlight, and a partition disposed between the first sensor and the second sensor to spatially separate the first and second sensors; and a comparison unit for comparing the intensity of light sensed by the first and second sensors; and wherein the control unit rotates the drying rack toward the one with the greater light intensity between the first sensor and the second sensor based on the judgment of the comparison unit. Claim 3 delete Claim 4 delete Claim 5 A drying device for a workpiece according to paragraph 2, characterized in that when the intensity of light sensed by the light receiving part of the process part is smaller than a predetermined reference value, the control part controls the rotating part in a mode of stopping the drying table or rotating it at a predetermined constant speed. Claim 6 delete Claim 7 delete Claim 8 delete
Citation Information
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