Grain and seed dryer
The rotatable door and work platform with a protective fence on grain and seed dryers address safety and access issues, enabling easy entry and exit for elderly or large workers, enhancing safety and efficiency.
Patent Information
- Application Number
- JP2022163171
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2022-10-11
- Publication Date
- 2026-08-26
- Estimated Expiration
- 2042-10-11
AI Technical Summary
Existing grain and seed dryers pose safety hazards for elderly or large workers due to difficult access through small inspection openings, requiring dangerous maneuvers and space-consuming panel removal for cleaning, and lack flexibility in installation.
A rotatable door on the storage side plate of the dryer body with a lever-operated opening mechanism, accompanied by a large opening and a work platform with a protective fence, allowing easy entry and exit, and a vertical ladder for safe access.
Enhances worker safety by facilitating easy access and reducing the risk of falls and injuries, while improving efficiency and flexibility in installation and maintenance.
Smart Images

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Abstract
Description
Technical Field
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[0001] The present invention relates to a dryer for grains and seeds. More specifically, a rotatable door is provided on the storage side plate portion of the dryer body, An opening and closing device for the storage side panel door of a dryer, which can be easily locked and unlocked by lever operation, and has a large opening to allow elderly or large workers to easily enter and exit the machine. and it also relates to a dryer for grains and seeds in which improvements are made to the entrance / exit of the machine body, the entrance / exit door, and the maintenance work floor, and a vertical ladder for the maintenance work floor is installed.
Background Art
[0002] Conventionally, in order to enter the inside of a dryer for grains, seeds, etc., it is necessary to climb to the top of the machine body once and enter and exit through an inspection opening provided in the top plate portion of the machine body storage portion, which is accompanied by a risk of falling during ascent and descent.
[0003] Also, sufficient space is required between the top plate of the machine body and the ceiling of the building.
[0004] Moreover, the main purpose of the inspection opening provided in the machine body storage portion is for inspection and cleaning, and the opening is small and it is not easy for an operator to enter and exit the machine body.
[0005] Also, during inspection and cleaning, the work is carried out by leaning out from an unstable scaffold such as a ladder or a step stool, which is dangerous.
[0006] On the other hand, for the inspection opening provided in the drying portion of the machine body, after removing the drying side plate, there is the trouble of further removing the perforated plate, and a separate space is required for placing the removed members.
[0007] Also, there is a risk of work mistakes when reattaching the removed members.
[0008] Amidst these circumstances, the increasing cultivation of multiple crop varieties in recent years has led to a growing need and demand for access to the storage section of dryers for cleaning. However, currently, the only available methods involve using small inspection windows that are difficult for people to access, or removing large drying side panels and then the inner cylinder, which is a time-consuming process and requires space to store the removed panels.
[0009] Patent Document 1 proposes a cleaning device for a circulating grain dryer in which a drying section and a storage tank are sequentially placed above the grain collection section, and a grain lifter is attached to circulate the flowing grain from the grain collection section to the upper part of the storage tank. In this device, the side wall of the drying section is divided into upper and lower halves, and the ventilation wall that forms an exhaust passage or hot air passage with the side wall is also divided into upper and lower halves, and is made to be detachably attached integrally with the side wall, and at least the upper side wall portion is made to be rotatable upward around its upper end.
[0010] However, in the case of the circulating grain dryer described in Patent Document 1, the upper side wall is configured to rotate upward around its upper end, and this configuration does not allow elderly or large workers to easily enter and exit the storage section for cleaning the inside of the dryer. [Prior art documents] [Patent Documents]
[0011] [Patent Document 1] Publication No. 6-48305 [Overview of the project] [Problems that the invention aims to solve]
[0012] The present invention was developed in view of the above-mentioned conventional circumstances, and provides an opening and closing device for the storage side plate of a dryer, which has a rotatable door on the storage side plate of the dryer body that can be easily fixed and opened by lever operation, and has a large opening that makes it easy for elderly or large workers to enter and exit the machine, as well as a grain and seed dryer which has been improved with an entrance and exit door and maintenance work floor and a vertical ladder installed for the maintenance work floor. [Means for solving the problem]
[0013] The present invention features an opening and closing device for the storage side plate section of the dryer body, which includes a rotatable door positioned on the storage side plate section of the dryer body. The door can be rotated and opened / closed based on a lever operation to reveal a distinctive opening on the storage side plate section of the dryer body. This configuration allows for efficient entry and exit from the dryer body and efficient work inside the machine, while also providing a high level of safety protection for workers working inside the machine. [Effects of the Invention]
[0014] The dryer according to the configuration of the present invention resolves various problems such as the danger to workers in conventional devices of this type, and realizes a novel device that protects the safety of workers, which is of utmost importance. It can protect the safety of workers, which is of utmost importance, and can also highly protect the safety of workers working inside the dryer while improving the efficiency of entering and exiting the machine and the work inside the machine.
[0015] According to the invention described in claim 1, a large opening of 500 mm x 800 mm or more can be created in the storage side plate of the machine based on a simple lever operation, making it easy for elderly or large workers to enter and exit. When the height of the door installed in the storage side plate of the machine is large, a work platform with a protective fence and a ladder for ascending and descending to it are provided, ensuring worker safety and ease of access to the work platform even when the door is high above the ground. By installing a work platform with a protective fence in the storage side plate of the machine, when the door is rotated open and closed based on the lever operation to create an opening in the storage side plate of the machine, the door can be rotated open and closed within a range from a sealed state to a 180-degree open state based on the lever operation, thus simplifying the opening and closing operation of the door within a range from a sealed state to a 180-degree open state and the installation work of the opening. Furthermore, according to the invention described in claim 1, the rotatable door positioned on the storage side plate of the machine is at a height of 2000 mm or more above the ground, and a work platform with a protective fence is installed at the lower front end of the door. The door and the work platform with the protective fence are provided at a freely adjustable height within the height range of the storage side plate of the machine, which is 2000 mm or more above the ground, and are positioned on one of the four sides of the machine. This configuration allows for diversification of the installation position of the opening and closing device for the storage side plate of the machine.
[0016] According to the invention described in claim 2, in addition to the effects of the invention described in claim 1, the door installed on the storage side plate of the machine body is at a height of 2000 mm or more from the ground, and is equipped with a work platform with a protective fence and a ladder for ascending and descending to the work platform with the protective fence, and is equipped with an auxiliary ladder which is constructed by adding a safety enclosure for ascending from the work platform with the protective fence to the upper part of the machine body, and is configured so that smooth ascent and descent to the upper part of the machine body is possible without requiring space for the work platform, ladder and auxiliary ladder on the three other sides other than the installation surface of the opening, and is arranged on the storage side plate of the machine body. The rotatable door is positioned at a height of 2000 mm or more above the ground, and a work platform with a protective fence is installed at the lower front end of the door. The door and the work platform with the protective fence are configured to be installed at a freely adjustable height within the height range of the storage side plate section, which is 2000 mm or more above the ground of the machine. This allows for smooth ascent and descent to the upper part of the machine without requiring space on the three other sides besides the installation surface of the opening for the work platform with the protective fence, the climbing ladder for ascending to and from the work platform, and the auxiliary ladder for ascending from the work platform to the upper part of the machine. [Brief explanation of the drawing]
[0017] [Figure 1] Figure 1 is a schematic perspective view showing the opening and closing device for the storage side plate door of a dryer according to Embodiment 1 of the present invention. [Figure 2] Figure 2 is a partial perspective view showing the sealed state of the door to the storage side plate in the opening and closing device for the storage side plate of the dryer body according to this embodiment 1. [Figure 3] Figure 3 is a partial perspective view showing the unlocked state of the door in the door opening and closing device for the storage side plate portion of the body of the dryer according to the first embodiment. [Figure 4] Figure 4 is a schematic perspective view showing the 90-degree open state of the door in the door opening and closing device for the storage side plate portion of the body of the dryer according to the first embodiment. [Figure 5] Figure 4 is a partial perspective view showing the 180-degree open state of the door in the door opening and closing device for the storage side plate portion of the body of the dryer according to the first embodiment. [Figure 6] Figure 6 is a schematic explanatory view showing three views of the front, right side, and plan (door closed state) of the door opening and closing device for the storage side plate portion of the body of the dryer of the first embodiment. [Figure 7] Figure 7 is a schematic explanatory view showing three views of the front, right side, and plan (door 90-degree open state) of the door opening and closing device for the storage side plate portion of the body of the dryer of the first embodiment. [Figure 8] Figure 8 is a schematic perspective view showing the door opening and closing device for the storage side plate portion of the body of the dryer according to the second embodiment of the present invention. [Figure 9] [[ID=二十]]Figure 9 is a schematic perspective view showing the door opening and closing device for the storage side plate portion of the body of the dryer according to the third embodiment of the present invention. [Figure 10] Figure 10 is a schematic perspective view showing the door opening and closing device for the storage side plate portion of the body of the dryer according to the fourth embodiment of the present invention. [Figure 11] Figure 11 is a schematic view showing the plan and front of the side plate panel provided with the door for the storage side plate portion of the body of the dryer according to the first embodiment of the present invention. [Figure 12] Figure 12 is a schematic view showing the plan and front (90-degree open state) of the side plate panel provided with the door for the storage side plate portion of the body of the dryer according to the first embodiment of the present invention. [Figure 13] Figure 13 is a schematic explanatory view showing four views of the front, left side, plan, and bottom of the working floor and the lifting ladder of the body of the dryer of the first embodiment.
Embodiments for Carrying Out the Invention
[0018] The present invention aims to provide an opening and closing device for the storage side plate of a dryer, which has a rotatable door on the storage side plate of the dryer body, can be easily fixed and opened by lever operation, and has a large opening that makes it easy for elderly or large workers to enter and exit. The device is configured to have a rotatable door on the storage side plate of the dryer body, and to set up an opening on the storage side plate of the dryer body by rotating and opening the door based on lever operation, and the opening is configured to be large enough to make it easy for elderly or large workers to enter and exit, with dimensions of 500 mm x 800 mm or more. Designed to achieve the aforementioned main effects. That is the case.
[0019] In addition, the dryer of the present invention has been improved with an entrance and exit door and a maintenance work platform, and a vertical ladder for the maintenance work platform has been installed. [Examples]
[0020] The opening and closing device for the storage side plate section door of the dryer according to an embodiment of the present invention will be described in detail below with reference to the drawings.
[0021] (Example 1) The opening and closing device 4 for the storage side plate section door of the dryer body 51 according to this embodiment 1 will be described in detail with reference to Figures 1 to 5, and further to Figures 6 and 7.
[0022] The opening and closing device 4 for the storage side plate section door of the machine body 51 according to this embodiment 1 comprises a large rectangular parallelepiped machine body 51 of a dryer that stores grains, etc., inside the storage section 1 and dries the grains, etc., in the drying section 2, a controller 3 provided in the lower front region of the machine body 51, and a lever 10 provided on the opening and closing device 4 for the storage side plate section 6 of the machine body 51, which is positioned on the right storage side plate section 3A on the right side side of the machine body 51, and which makes an opening 5 (see Figures 4 and 5) (550 mm x 950 mm in this embodiment 1) of, for example, 500 mm x 800 mm or more appear in the area of the right storage side plate section 3A based on the rotational opening and closing operation of a lever 10 provided on the opening and closing device 4 for the storage side plate section door 6.
[0023] As shown in Figure 2, the opening and closing device 4 for the door 6 for the storage side plate section is configured such that the door 6 with a viewing window 22 is attached to the frame 21 using hinges or the like so that it can be opened and closed, and a lever 10 is positioned on the door 6 so that it can be rotated to open and close, and the door 6 can be opened and closed by moving hooks 23, 23 which are linked to the rotation and opening and closing operation of the lever 10 in conjunction with receiving parts 24, 24 provided on the frame 21. When an opening 5 is to be revealed in the right storage side plate section 3A of the machine body 51 based on the rotation and opening and closing operation of the door 6, the door 6 is configured to be able to be rotated and opened within a range from a sealed state to a 180-degree open state relative to the right storage side plate section 3A based on the operation of the lever 10, so that the opening 5 can be revealed.
[0024] Furthermore, in this embodiment 1, considering the case where the ground installation height of the door opening / closing device 4 for the right storage side plate portion 3A of the machine body 51 is large, a work platform 7 with a protective fence and a lifting ladder 8 for ascending and descending from the ground to the work platform 7 are provided.
[0025] Since the storage section 1 is at a height of at least 2000 mm above the ground, it is preferable to configure it with a work platform 7 with a protective fence as described above, and an access ladder 8 for ascending and descending to it. Furthermore, by providing a ladder from the work platform 7 to the top of the machine body 51, smooth ascent and descent to the top of the machine body 51 becomes possible without requiring space on the three sides other than the installation surface, as described later.
[0026] To elaborate, the work platform 7 extends horizontally at least 400 mm from the side panels and is surrounded by a handrail at a height of 850 mm or more above the work platform 7. Access to the work platform 7 is possible via a ladder 8 or stairs, and there are fasteners to secure them.
[0027] Furthermore, by installing an auxiliary ladder 9 that allows access to the top of the dryer from the work platform 7, access to the top of the machine becomes possible without requiring space on sides other than the opening (the opposite side and the front and rear sides). The auxiliary ladder 9 is fixed to the dryer body in a position that does not interfere with the rotation of the opening door, and a safety enclosure can be attached to the auxiliary ladder 9, further enhancing safety.
[0028] Regarding the aforementioned work platform 7, conventionally, there was insufficient footing to access the maintenance and inspection hatches of the aircraft, making entry and exit into the aircraft dangerous. However, as shown in the diagram of the present invention, by installing a wide work platform 7, it is possible to enter and exit safely from the entrance, and a safety fence can be installed around it to secure a safe working space. Maintenance supplies (cleaning tools, tools, etc.) can also be brought onto the work platform and placed there, and both hands can be free when necessary, allowing for safe work.
[0029] Regarding the maintenance work platform 7, it is preferable that this work platform 7 is horizontally fixed to the storage side plate, protruding at least 400 mm from the side plate, surrounded by a safety fence at least 850 mm high, equipped with a ladder fixing device at at least one end of the work platform 7 so that a ladder 8 for accessing the work platform 7 can be fixed, and that a vertical ladder 9, which can be raised and lowered from the work platform 7 to the top of the machine, is fixed to the machine and installed in a position that does not interfere with the machine entrance or entrance door.
[0030] Furthermore, the aircraft entrance / exit, entrance / exit door, maintenance work platform 7, and vertical ladder 9 for the work platform can be attached to any position on the aircraft side panel, and a safety enclosure can be attached to the vertical ladder 9 for the work platform.
[0031] By configuring the maintenance work platform 7 as described above, it is possible to safely enter and exit the machine's entrance and secure a safe working space at any height in the storage area. Furthermore, by installing a vertical ladder 9 for the work platform, it is possible to ascend to the top of the machine using only the side where the work platform 7 is installed, and the machine can be installed in a space-saving manner, allowing access to the top of the machine without opening the machine's entrance. Safety can be further enhanced by installing a safety enclosure as needed.
[0032] Furthermore, in this embodiment 1, when the door 6 is rotated open or closed by the rotational opening and closing operation of the lever 10 to reveal an opening 5 in the right storage side plate portion 3A of the machine body 51, the door 6 can be rotated open or closed within a range from a sealed state to a 180-degree open state by operating the lever 10 (see Figures 2, 3, 4, 5, 11, and 12).
[0033] Figure 6 shows three views of the opening and closing device 4 for the storage side plate section door of the machine body 51 of this embodiment 1: front, right side, and top (door closed). Figure 7 also shows three views of the opening and closing device 4 for the storage side plate section door of the machine body 51 of this embodiment 1: front, right side, and top (door 90 degrees open).
[0034] Figures 11 and 12 show the plan view and front view (door closed and door 90-degree open) of a side panel 31, which is panel-shaped and has a side panel height of two frames (one layer of this device) and is equipped with the door 6.
[0035] In addition, in Figures 6 and 7, the work platform 7, the climbing ladder 8, and the vertical ladder 9 have been omitted in order to clearly show the installation and opening / closing status of the door 6.
[0036] Figure 13 is a schematic diagram showing four views of the front work platform 7 and the access ladder 8 to the work platform 7: the front, left side, top, and bottom views.
[0037] In this embodiment, the work platform 7 can be of various forms, including a flat plate shape as shown in the figure, as well as wire mesh, perforated plates, and more.
[0038] (Example 2) Next, with reference to Figure 8, the opening and closing device 4A for the door 6 for the left storage side plate section 3B of the machine body 51 according to Embodiment 2 will be described in detail.
[0039] In Example 2, elements identical to those in Example 1 are denoted by the same reference numerals.
[0040] The opening and closing device 4A for the door 6 for the left storage side plate section 3B of the machine body 51 in this embodiment 2 is basically the same as in the case of embodiment 1, but the opening and closing device 4A for the door 6 is characterized by being located on the left storage side plate section 3B side of the machine body 2, thus diversifying the arrangement.
[0041] (Example 3) Next, with reference to Figure 9, the opening and closing device 4B for the storage side plate section door of the machine body 51 according to Embodiment 3 will be described in detail.
[0042] In Example 3, the same elements as in Example 1 are denoted by the same reference numerals.
[0043] In the case of the opening and closing device 4B for the storage side plate section door of the machine body 51 according to this embodiment 3, the installation position of the opening and closing device 4B for the storage side plate section door is set higher by two frame heights (one layer of this device) than in the case of embodiment 1, and accordingly, a lifting ladder 8A that is two frame heights (one layer of this device) longer is used instead of the lifting ladder 8.
[0044] In Figure 9, the fixed position of the lifting ladder 8A is on the rear side of the machine body 51, but it may also be on the front side of the machine body 51, as in the case of Embodiment 1.
[0045] In more detail, this type of work platform was developed in response to the demand from dryer users for greater flexibility in height selection, depending on the installation environment and layout of the machine. It allows for the installation of an access door and work platform on any storage side plate, and the access ladder can be selected to match the height of the work platform above ground level.
[0046] In this embodiment 3, the arrangement has been diversified in terms of ground height.
[0047] (Example 4) Next, with reference to Figure 10, the opening and closing device 4C for the storage side plate section door of the machine body 51 according to Embodiment 4 will be described in detail.
[0048] In Example 4, the same elements as in Example 1 are denoted by the same reference numerals.
[0049] The opening and closing device 4C for the door 6 of the storage side plate section of the machine body 51 in this embodiment 4 is basically the same as in the case of embodiment 1, but is characterized in that a safety enclosure 11 is added to the auxiliary ladder 9 for safety reasons.
[0050] The addition of the safety enclosure 11 can also be applied to each of the auxiliary ladders 9 in the embodiments 1 to 3, thereby improving safety in each case.
[0051] The following provides a detailed description of each embodiment.
[0052] <Main mode> • The opening will be fitted with a door that rotates horizontally to the right or left. The door can be sealed without the use of tools. For example, it is secured by rotating a hook that is linked to a lever and attaching it to a receiving part on the side panel.
[0053] <Accompanying manner> • A work platform fixed to the machine body is installed below the opening. The work platform extends horizontally at least 400 mm from the side panels and is surrounded by a handrail at a height of 850 mm or more above the work platform. • Access to the work platform is possible via ladders or stairs, and there are fasteners to secure them. • An auxiliary ladder can be attached to allow access to the upper part of the aircraft from the work platform. This allows for ascent and descent to the top of the aircraft without requiring space on sides other than the opening (the opposite side and the front and rear sides). The ladder is fixed to the main body of the aircraft in a position that does not interfere with the rotation of the door of the opening. • A safety enclosure can be attached to the ladder to further enhance safety. [Industrial applicability]
[0054] The present invention is broadly applicable to the body of a dryer used for the storage and drying of grains such as wheat, barley, rice, and corn. [Explanation of Symbols]
[0055] 1. Storage section 2 Drying section 3 Controllers 3A Right storage side plate section 3B Left storage side plate 4. Opening and closing device 4A Switchgear 4B Switching device 4C Switching Device 5 Openings 6 doors 7 Work platform with protective fence 8. Elevating ladder 8A Lifting ladder 9 Auxiliary ladder 10 Lever 11 Safety enclosure 22 Peephole 23 hooks 24 Receiving Department 31 Side panel 51 aircraft
Claims
1. A dryer for grains and seeds, wherein a door that can be rotatably opened and closed and has a viewing window to maintain safety in case the door becomes stuck is positioned on the storage side plate of the dryer body, and the dryer is configured to create an opening in the storage side plate of the body, The door is configured to be opened and closed safely and easily by rotating it with a lever, and the storage side plate of the dryer body has a large opening of 500 mm x 800 mm or more, allowing elderly or large workers to enter and exit the machine safely and easily. When the opening is revealed, the door can be rotated and opened from a sealed state to a 180-degree open state based on the lever operation, and the opening and closing operation of the door from a sealed state to a 180-degree open state, as well as the installation work of the opening, are configured to be simplified. The mechanism for opening and closing the door for the storage side plate section is configured such that the door with the viewing window is attached to the door frame using hinges or the like so that it can be opened and closed, the lever is positioned on the door so that it can be rotated to open and close, and the door can be opened and closed by having a plurality of hooks that are linked to the rotational opening and closing operation of the lever extend and retract to a plurality of receiving parts provided on the frame, The rotatable door, positioned on the storage side plate of the machine, has a ground clearance of 2000 mm or more, and a work platform with a protective fence is installed at the lower front end of the door. The door and the work platform with the protective fence are positioned at a freely adjustable ground clearance within the height range of the storage side plate of the machine, which is 2000 mm or more above ground clearance, and are configured to be positioned on one of the four sides of the machine. A grain and seed dryer characterized by being configured to ensure a high level of safety for workers operating inside the machine while improving the efficiency of entering and exiting the machine and the work inside the machine.
2. A dryer for grains and seeds, wherein a door that can be rotatably opened and closed and has a viewing window to maintain safety in case the door becomes stuck is positioned on the storage side plate of the dryer body, and the dryer is configured to create an opening in the storage side plate of the body, The door is configured to be opened and closed safely and easily by rotating it with a lever, and the storage side plate of the dryer body has a large opening of 500 mm x 800 mm or more, allowing elderly or large workers to enter and exit the machine safely and easily. When the opening is revealed, the door can be rotated and opened from a sealed state to a 180-degree open state based on the lever operation, and the opening and closing operation of the door from a sealed state to a 180-degree open state, as well as the installation work of the opening, are configured to be simplified. The mechanism for opening and closing the door for the storage side plate section is configured such that the door with the viewing window is attached to the door frame using hinges or the like so that it can be opened and closed, the lever is positioned on the door so that it can be rotated to open and close, and the door can be opened and closed by having a plurality of hooks that are linked to the rotational opening and closing operation of the lever extend and retract to a plurality of receiving parts provided on the frame, The door to be installed on the storage side plate of the machine is at a height of 2000 mm or more from the ground, and is equipped with a work platform with a protective fence and a ladder for ascending and descending to the work platform with the protective fence, and is further equipped with an auxiliary ladder which is constructed by adding a safety enclosure for ascending from the work platform with the protective fence to the upper part of the machine, and is configured so that smooth ascent and descent to the upper part of the machine is possible without requiring space for the work platform with the protective fence, ladder for ascending and descending, and auxiliary ladder on the three other sides other than the installation surface of the opening. The rotatable door, which is positioned on the storage side plate of the machine, is at a height of 2000 mm or more above the ground, and a work platform with a protective fence is installed at the lower front end of the door, and the door and the work platform with the protective fence are configured to be installed at a freely adjustable height within the height range of the storage side plate of the machine, which is at a height of 2000 mm or more above the ground. A grain and seed dryer characterized by being configured to ensure a high level of safety for workers operating inside the machine while improving the efficiency of entering and exiting the machine and the work inside the machine.
Citation Information
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