WO2020065746A1 - Tank with scales - Google Patents
Tank with scales Download PDFInfo
- Publication number
- WO2020065746A1 WO2020065746A1 PCT/JP2018/035569 JP2018035569W WO2020065746A1 WO 2020065746 A1 WO2020065746 A1 WO 2020065746A1 JP 2018035569 W JP2018035569 W JP 2018035569W WO 2020065746 A1 WO2020065746 A1 WO 2020065746A1
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- WIPO (PCT)
- Prior art keywords
- mounting table
- tank
- load
- load cell
- leg
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/12—Supports
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/22—Safety features
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
Definitions
- the present invention relates to a tank provided with a scale for measuring the weight of contents.
- a tank with a scale in which a strain gauge type load cell is arranged between the lower end of the support leg and the installation surface has been used.
- the present applicant has also implemented a scaled tank for storing feed in a livestock facility such as a poultry farm.
- the underfeeding amount feeding amount
- the remaining amount and the replenishment amount of the feed in the tank can be managed.
- the strain gauge type load cell converts the load into an electric signal based on detecting the deformation of the flexure element due to the load as a change in the electric resistance value by the strain gauge. That is, since the load cell needs to be deformed, there is a limit in making the load cell a sturdy structure. For this reason, when the tank receives a large impact due to an earthquake or the like, there is a concern that the tank may fall due to damage to the load cell. In practice, each leg supporting the tank uses a load cell with a rated capacity (measurable maximum load) of several thousand kilogram-weight to 20,000 kilogram-weight. There is almost no risk that the tank will fall over due to this. However, a company that introduces a tank with a scale has requested a tank with a scale provided with a safety measure to prevent the load cell from falling even if the load cell is damaged.
- the present invention is directed to a scaled tank in which a strain gauge type load cell is disposed between the lower end of a support leg and an installation surface, and the tank with a scale is prevented from overturning even if the load cell is damaged. Is to be provided.
- the tank with a scale is: ⁇ A scale-equipped tank having a scale portion at the lower end of each of a plurality of legs supporting the tank, Each of the scale parts is A mounting table on which the leg is fixed while the leg is mounted, A strain gauge type load cell in which a load receiving part is located immediately below the leg, A load transmitting portion that transmits the load applied to the mounting table to the load receiving portion, wherein the load transmitting portion is connected to the mounting table on the upper end side, and the lower end is in contact with the load receiving portion.
- two or more support structures disposed around the load cell At least a part of the upper end surface of each of the support structures is located below the mounting table, and a gap is provided between the supporting structure and the mounting table.
- the plurality of legs supporting the tank are fixed to the mounting table while being mounted on the mounting table, respectively, and the load applied to one mounting table is one through the load transmitting unit. It is transmitted to the load receiving portion of the load cell. Therefore, one load cell detects the weight borne by one of the legs, the weight of one leg, and the weight of one mounting table among the weight of the tank and the contents contained in the tank. . Therefore, for all the load cells, the weight of the tare, that is, the sum of the weight of one of the legs, the weight of one of the legs, and the weight of one of the mounting tables is detected by the load cell. By subtracting from the calculated weight, the weight of the contents stored in the tank can be grasped.
- two or more support structures are arranged around the load cell, and at least a part of the upper end surface of each support structure is located below the mounting table. It is not in contact with the load cell, and there is a gap between the upper end surface of the support structure and the mounting table. Therefore, when the scaled tank is used normally, the support structure does not affect the weight detection by the load cell.
- the mounting table loses the part that supported it, but there is a support structure below the mounting table. Therefore, the mounting table that has fallen without support is received by the support structure and mounted on the upper end surface. Accordingly, since the leg fixed while being mounted on the mounting table is supported by the support structure, the leg is prevented from tipping over, and the tank supported by the leg is prevented from tipping over. .
- the support structure according to the present invention in addition to the above configuration, "In each of the scale portions, a bolt is loosely inserted into a hole penetrating the mounting table and a hole penetrating the support structure, so that the support structure and the support structure are connected to each other. It is positioned without being fastened to the mounting table. "
- the mounting table and the support structure are positioned relative to each other by bolts inserted into holes penetrating through the mounting table and the support structure, respectively. Accordingly, even when the support structure is greatly vibrated due to an earthquake or the like, the positional relationship in which the support structure exists below the mounting table does not collapse, and the mounting table can be reliably supported by the support structure. Then, the bolt is only loosely inserted into each of the holes penetrating the mounting table and the holes penetrating the support structure, and the mounting table and the support structure are not fastened. When the scaled tank is used normally, the above-described positioning by the bolt does not affect the weight detection by the load cell.
- Scaled tanks can be provided.
- FIG. 1 is a perspective view of a tank with a scale according to one embodiment of the present invention.
- FIG. 2 is an exploded perspective view of the vicinity of the scale portion in the tank with a scale of FIG.
- FIG. 3 is a plan view of one leg supporting the scaled tank of FIG. 1 and a scale at the lower end thereof.
- FIG. 4 is a perspective view taken along line XX in FIG.
- FIG. 5A is a front view of the scale-equipped tank of FIG. 1 in the vicinity of the scale portion during normal use
- FIG. 5B is a front view of the same area as FIG. 5A when the load cell is damaged. It is.
- up and down means upper and lower in a use state where the tank with scale 1 is erected on the installation surface G.
- the tank 1 with a scale of the present embodiment includes a tank 10, a plurality of legs 20, and a plurality of scales S provided for each leg 20.
- the tank 10 has a conical part 12 extending above the cylindrical part 11 and an inverted conical part 13 extending below.
- the tank 10 is openable and closable at the upper end of the conical part 12. It has a supply port 15 formed and a discharge port 16 formed at the lower end of the inverted conical portion 13 so as to be openable and closable.
- the leg 20 supporting the tank 10 includes a column 21 made of channel steel, and a plate-shaped leg bottom 22 covering the lower end of the column 21 from below.
- the leg bottom surface portion 22 increases the mechanical strength of the leg portion 20 and increases the area of the lower end of the leg portion 20 in the direction orthogonal to the axial direction of the column 21.
- the support 21 is fixed to the surface of the cylindrical portion 11 in parallel with the axial direction of the cylindrical portion 11.
- a hole 25 is formed in the center of the leg bottom portion 22.
- the plurality of legs 20 are provided at equal angular intervals with respect to the central axis of the cylindrical portion 11.
- FIG. 1 illustrates a case where the number of the legs 20 is six, but the number of the legs 20 can be set according to the size and weight of the tank 10, for example, from three to eight. be able to.
- the scaled tank 1 further includes a horizontal member 29 connecting the tank 10 and the leg 20, and the mechanical strength of the supporting structure of the tank 10 by the leg 20 is reinforced.
- the scale portion S is provided between the lower end of each of the plurality of legs 20 and the installation surface G. That is, the number of the scale portions S is the same as the number of the leg portions 20.
- Each of the scale units S includes a mounting table 30, a strain gauge type load cell 40, a load transmitting unit 50, and two or more support structures 60.
- the mounting table 30 is a rectangular flat plate having an area larger than the leg bottom 22 and has a hole 31 penetrating the center. Further, near the pair of short sides of the mounting table 30, second holes 32 are provided at positions equidistant from the holes 31.
- the load cell 40 includes a load cell main body 41, a fixing base 43, and an installation base 44.
- the load cell main body 41 has a load receiving portion 41a made of a strain body on one end side, has a fixed portion 41b on the other end side, and has a strain gauge attached to a strain gauge (not shown in the drawing).
- the fixing base 43 is a rectangular parallelepiped block, and the fixing portion 41 b of the load cell main body 41 is attached by a bolt 47. By fixing the fixing portion 41b to the fixing base 43, a space is formed below the load receiving portion 41a by the height of the fixing base 43.
- the installation base 44 is a flat plate, and the fixing base 43 is fixed on the upper surface thereof, and is fixed to the installation surface G by an anchor (not shown). Therefore, the installation base 44 fixes the load cell main body 41 to the installation surface G via the fixing base 43. In addition, the protection wall 49 rises upward from a pair of side edges of the installation base 44.
- the load transmitting unit 50 is formed by coaxially connecting a plurality of members whose axial direction is the vertical direction, and the lower end thereof is in contact with the load receiving unit 41 a of the load cell main body 41.
- the upper end of the load transmitting portion 50 is formed of a connecting shaft 51 which is an externally threaded male screw inserted into the hole 31 of the mounting table 30.
- a large-diameter portion 52 which is a cylinder having an outer diameter larger than the hole portion 31, is provided below the connection shaft 51 in the load transmitting portion 50.
- the plurality of members constituting the load transmitting unit 50 can include a sphere and a spherical seat.
- the connecting shaft 51 is inserted into the hole 31 from below with the upper surface of the large-diameter portion 52 abutting against the lower surface of the mounting table 30, and further inserted into the hole 25 of the leg bottom portion 22 from below. It is fastened with a nut 54 from above the leg bottom portion 22.
- a flat pressing plate 56 in which the connecting shaft 51 is inserted through a through hole 58 is interposed.
- the load applied to the mounting table 30, that is, the sum of the weight borne by one leg 20, the weight of the leg 20, and the weight of the mounting table 30 out of the weight of the tank 10 and the internal substance is transmitted to the load.
- the power is transmitted to the load receiving portion 41a of the load cell main body 41 via the portion 50.
- the load receiving portion in which the lower end of the load transmitting portion 50 whose vertical direction is the axial direction abuts. 41 a is located directly below the leg 20.
- Each support structure 60 is formed by connecting a flat plate-shaped lower plate 62 to be in contact with the installation surface, a flat plate-shaped upper plate 61 parallel to the lower plate 62, and the lower plate 62 and the upper plate 61 at the center. And a flat steel wall 63 having an I-shaped cross section. Further, each support structure 60 further includes a reinforcing rib 64 extending perpendicularly from the center of the upright wall 63 and connecting the upper plate 61 and the lower plate 62.
- the upper surface of the upper plate 61 in the present embodiment corresponds to “the upper end surface of the support structure” of the present invention.
- the height of the upper plate 61 is set so that the upper surface thereof is lower than the mounting table 30. That is, the contents of the upper limit value that can be accommodated in the tank 10 are temporarily accommodated in the tank 10, and the strain body of the load cell 40 is deformed accordingly, whereby the mounting table 30 is moved through the load transmitting unit 50.
- the height of the upper plate 61 is set so that a space is maintained between the mounting table 30 and the upper plate 61 even if the lowering unit descends.
- each of the two support structures 60 is such that the upper plate 61 is located below a portion of the mounting table 30 having an area larger than the leg bottom portion 22 and extending to the outside of the leg bottom portion 22. Are located.
- the upper plate 61 of the present embodiment is a rectangle in which the direction of the long side is orthogonal to the rectangular mounting table 30, and the length of the long side of the upper plate 61 is longer than the length of the short side of the mounting table 30. large. That is, as shown in FIG. 3, the upper plate 61 of the support structure 60 has a portion protruding from a portion directly below the mounting table 30.
- a hole 65 is provided at a position not interfering with the standing wall 63 and the reinforcing rib 64 and at a position directly below the second hole 32 of the mounting table 30. ing. Then, the bolt 70 with the head 71 is inserted into the second hole 32 of the mounting table 30 from above, and further inserted into the hole 65 of the upper plate 61 from above. A nut 72 is screwed into the bolt 70 from below the upper plate 61 of the mounting table 30, but the nut 72 is not tightened to the bolt 70.
- the sizes of the second hole 32 of the mounting table 30 and the hole 65 of the upper plate 61 are smaller than the head 71 of the bolt 70 but sufficiently larger than the outer diameter of the bolt 70.
- the bolt 70 is loosely inserted into the second hole 32 and the hole 65. That is, although the bolt 70 is prevented from dropping downward by the head 71 and prevented from lifting upward by the nut 72, the mounting table 30 and the upper plate 61 are not fastened. In other words, the bolt 70 positions the mounting table 30 and the support structure 60 with respect to the counterpart without transmitting the load applied to the mounting table 30 to the support structure 60.
- the weight detected by one load cell 40 is the load applied to the mounting table 30, It is the sum of the weight of one leg 20, the weight of one leg 20, and the weight of one mounting table 30 among the weights of the internal product.
- the support structure 60 exists below the mounting table 30, but since the mounting table 30 and the support structure 60 are only loosely positioned by the bolts 70, the load applied to the mounting table 30 is reduced. It is not transmitted to 60. In addition, since the support structure 60 is not in contact with the load cell 40, the support structure 60 does not affect the weight detection by the load cell 40.
- the tare (the sum of the weight of one leg 20, the weight of one leg 20, and the own weight of one mounting table 30 of the weight of the tank 10) is subtracted from the weight detected by the load cell 40. Then, the weight borne by one leg portion 20 of the weight of the internal substance of the tank 10 can be known, and the total weight of the internal substance of the tank 10 can be calculated by integrating the detection values of the plurality of load cells 40. You can figure out.
- the load cell 40 is damaged by a large impact such as an earthquake, for example, if the load transmitting unit 50 is damaged or the load cell body 41 buckles, the load cell 40 is conventionally supported on the installation surface G. There is a possibility that the tank 10 may fall over due to the fall of the leg portion 20 having lost the damaged portion.
- the supporting structure is provided below it.
- the body 60 is present. Therefore, as shown in FIG. 5B, the mounting table 30 is mounted on the upper plate 61 of the support structure 60 and is supported by the support structure 60. Therefore, the legs 20 fixed to the mounting table 30 while being mounted on the mounting table 30 do not fall, and it is possible to effectively suppress the tank 10 supported by the legs 20 from falling. it can.
- the supporting structure 60 is formed of a strong and rigid shaped steel, the mounting table 30 to which the leg 20 supporting the tank 10 is fixed can be firmly received.
- the auxiliary rib 64 is further provided on the I-shaped cross-section steel, the mechanical strength of the support structure 60 is further increased.
- the upper plate 61 of the support structure 60 has a portion protruding from a portion directly below the mounting table 30. Therefore, even if the position of the mounting table 30 is slightly shifted with respect to the support structure 60, the mounting table 30 can be received by the support structure 60 when the load cell 40 is damaged. Further, in this embodiment, the mounting table 30 and the upper plate 61 of the support structure 60 are loosely positioned by the bolts 70. Therefore, even if a large vibration acts due to an earthquake, the position of the mounting table 30 does not significantly shift with respect to the support structure 60, and the mounting table 30 is reliably supported by the support structure 60 when the load cell 40 is damaged. can do.
- the support structure 60 is formed using a section steel having an I-shaped cross section, the upper plate 61 has a portion projecting from the standing wall 63. Therefore, the hole 65 through which the bolt 70 for loosely connecting the mounting table 30 and the support structure 60 is passed through the support structure 60 can be easily formed while using a highly rigid section steel. it can.
- the present invention is not limited to this, and a larger number of support structures 60 are arranged so as to surround the load cell 40, and the mounting table 30 of the mounting table 30 is overlapped with any of the upper end surfaces of these many support structures 60 in plan view.
- the area can be set large.
- the load cell main body 41 is of a beam type has been described as an example.
- a load cell having a different shape of the load cell main body such as a column type or a disk type may be used.
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Abstract
Provided is a tank with scales which is prevented from falling even when a load cell has become damaged. In the present invention, a tank with scales, in which scale units (S) are disposed on respective lower ends of multiple leg sections (20) supporting the tank, is configured such that each scale unit is provided with: a mounting base (30) to which the leg section is fixed, with the leg section being mounted thereon; a strain gauge-based load cell (40), a load-receiving part (41a) of which is positioned directly below the leg section; a load transmission section (50) connected to the mounting base at the upper end side and placed in contact with the load-receiving part at the lower end, thereby transmitting a load applied to the mounting base to the load-receiving part; and two or more support structures (60) disposed around the load cell without coming into contact with the load cell, wherein at least a portion of an upper plate (61) of each support structure is positioned below the mounting base with a gap from the mounting base.
Description
本発明は、内容物の重量を計測するためのスケールが付いたタンクに関するものである。
The present invention relates to a tank provided with a scale for measuring the weight of contents.
従前より、タンクに収容された内容物の重量を計測するために、支持脚の下端と設置面との間に歪みゲージ式ロードセルが配置されたスケール付きタンクが使用されている。本出願人も、養鶏場などの畜産施設において飼料を収容するスケール付きタンクを実施している。タンク内の飼料の重量を計測することにより、食下量(給餌量)を正確かつ容易に把握することができ、タンク内の飼料の残量や補充量を管理することができる。
Conventionally, in order to measure the weight of the contents stored in the tank, a tank with a scale in which a strain gauge type load cell is arranged between the lower end of the support leg and the installation surface has been used. The present applicant has also implemented a scaled tank for storing feed in a livestock facility such as a poultry farm. By measuring the weight of the feed in the tank, the underfeeding amount (feeding amount) can be accurately and easily grasped, and the remaining amount and the replenishment amount of the feed in the tank can be managed.
歪みゲージ式ロードセルは、荷重による起歪体の変形を、歪みゲージによって電気抵抗値の変化として検出することに基づいて、荷重を電気信号に変換する。つまり、ロードセルは変形することが必要であるため、ロードセルを頑丈な構造とすることには限界がある。そのため、地震などでタンクが大きな衝撃を受けたときに、ロードセルが損傷することによってタンクが転倒することへの懸念があった。実際には、タンクを支持する複数の脚部ごとに、一つ当たりの定格容量(測定し得る最大荷重)が数千キログラム重~2万キログラム重のロードセルを使用しているため、ロードセルの損傷に起因してタンクが転倒するおそれはほとんどない。しかしながら、スケール付きタンクを導入する事業者からは、ロードセルが万が一にも損傷した場合であっても転倒しないための安全策の施されたスケール付きタンクが要請されていた。
The strain gauge type load cell converts the load into an electric signal based on detecting the deformation of the flexure element due to the load as a change in the electric resistance value by the strain gauge. That is, since the load cell needs to be deformed, there is a limit in making the load cell a sturdy structure. For this reason, when the tank receives a large impact due to an earthquake or the like, there is a concern that the tank may fall due to damage to the load cell. In practice, each leg supporting the tank uses a load cell with a rated capacity (measurable maximum load) of several thousand kilogram-weight to 20,000 kilogram-weight. There is almost no risk that the tank will fall over due to this. However, a company that introduces a tank with a scale has requested a tank with a scale provided with a safety measure to prevent the load cell from falling even if the load cell is damaged.
そこで、本発明は、支持脚の下端と設置面との間に歪みゲージ式ロードセルが配置されたスケール付きタンクであって、ロードセルが損傷した場合であっても転倒が防止されているスケール付きタンクの提供を、課題とするものである。
Therefore, the present invention is directed to a scaled tank in which a strain gauge type load cell is disposed between the lower end of a support leg and an installation surface, and the tank with a scale is prevented from overturning even if the load cell is damaged. Is to be provided.
上記の課題を解決するため、本発明にかかるスケール付きタンクは、
「タンクを支持している複数の脚部それぞれの下端にスケール部を備えるスケール付きタンクであって、
それぞれの前記スケール部は、
前記脚部を載置した状態で前記脚部が固定されている載置台と、
前記脚部の直下に荷重受部を位置させている歪みゲージ式のロードセルと、
前記載置台に上端側で連結されていると共に、下端が前記荷重受部に当接していることにより、前記載置台にかかる荷重を前記荷重受部に伝達する荷重伝達部と、
前記ロードセルと接触することなく、前記ロードセルの周囲に配置されている二以上の支持構造体と、を具備し、
それぞれの前記支持構造体の上端面は、少なくとも一部が前記載置台の下方に位置していると共に、前記載置台との間に空隙があけられている」ものである。 In order to solve the above problems, the tank with a scale according to the present invention is:
`` A scale-equipped tank having a scale portion at the lower end of each of a plurality of legs supporting the tank,
Each of the scale parts is
A mounting table on which the leg is fixed while the leg is mounted,
A strain gauge type load cell in which a load receiving part is located immediately below the leg,
A load transmitting portion that transmits the load applied to the mounting table to the load receiving portion, wherein the load transmitting portion is connected to the mounting table on the upper end side, and the lower end is in contact with the load receiving portion.
Without contacting the load cell, two or more support structures disposed around the load cell,
At least a part of the upper end surface of each of the support structures is located below the mounting table, and a gap is provided between the supporting structure and the mounting table. "
「タンクを支持している複数の脚部それぞれの下端にスケール部を備えるスケール付きタンクであって、
それぞれの前記スケール部は、
前記脚部を載置した状態で前記脚部が固定されている載置台と、
前記脚部の直下に荷重受部を位置させている歪みゲージ式のロードセルと、
前記載置台に上端側で連結されていると共に、下端が前記荷重受部に当接していることにより、前記載置台にかかる荷重を前記荷重受部に伝達する荷重伝達部と、
前記ロードセルと接触することなく、前記ロードセルの周囲に配置されている二以上の支持構造体と、を具備し、
それぞれの前記支持構造体の上端面は、少なくとも一部が前記載置台の下方に位置していると共に、前記載置台との間に空隙があけられている」ものである。 In order to solve the above problems, the tank with a scale according to the present invention is:
`` A scale-equipped tank having a scale portion at the lower end of each of a plurality of legs supporting the tank,
Each of the scale parts is
A mounting table on which the leg is fixed while the leg is mounted,
A strain gauge type load cell in which a load receiving part is located immediately below the leg,
A load transmitting portion that transmits the load applied to the mounting table to the load receiving portion, wherein the load transmitting portion is connected to the mounting table on the upper end side, and the lower end is in contact with the load receiving portion.
Without contacting the load cell, two or more support structures disposed around the load cell,
At least a part of the upper end surface of each of the support structures is located below the mounting table, and a gap is provided between the supporting structure and the mounting table. "
本構成では、タンクを支持している複数の脚部が、それぞれ載置台に載置された状態で載置台に固定されており、一つの載置台にかかる荷重が荷重伝達部を介して一つのロードセルの荷重受部に伝達される。従って、一つのロードセルは、タンク及びタンクの内部に収容された内容物の重量のうち脚部の一つが負担する重量と、脚部一つ分の重量と、一つの載置台の重量を検知する。従って、全てのロードセルについて、風袋の重量、すなわち、タンクの重量のうち脚部の一つが負担する重量と、脚部一つ分の重量と、一つの載置台の重量の和を、ロードセルによって検知された重量から減算すれば、タンクに収容された内容物の重量を把握することができる。
In this configuration, the plurality of legs supporting the tank are fixed to the mounting table while being mounted on the mounting table, respectively, and the load applied to one mounting table is one through the load transmitting unit. It is transmitted to the load receiving portion of the load cell. Therefore, one load cell detects the weight borne by one of the legs, the weight of one leg, and the weight of one mounting table among the weight of the tank and the contents contained in the tank. . Therefore, for all the load cells, the weight of the tare, that is, the sum of the weight of one of the legs, the weight of one of the legs, and the weight of one of the mounting tables is detected by the load cell. By subtracting from the calculated weight, the weight of the contents stored in the tank can be grasped.
そして、本構成では、ロードセルの周囲に二以上の支持構造体が配置されており、それぞれの支持構造体の上端面の少なくとも一部が載置台の下方に位置しているが、支持構造体はロードセルに接触しておらず、支持構造体の上端面と載置台との間には空隙があけられている。従って、スケール付きタンクが正常に使用されている状態では、ロードセルによる重量の検知に支持構造体は影響を与えない。
In this configuration, two or more support structures are arranged around the load cell, and at least a part of the upper end surface of each support structure is located below the mounting table. It is not in contact with the load cell, and there is a gap between the upper end surface of the support structure and the mounting table. Therefore, when the scaled tank is used normally, the support structure does not affect the weight detection by the load cell.
一方、地震など大きな衝撃を受けることによってロードセルが損傷した場合、載置台はそれまで自身を支持していた部分を失うが、載置台の下方には支持構造体が存在する。そのため、支持を失って落下する載置台は、支持構造体に受け止められ、その上端面に載置される。従って、載置台に載置された状態で固定されている脚部が支持構造体に支持されることにより、脚部の転倒が防止され、脚部に支持されているタンクの転倒が防止される。
On the other hand, if the load cell is damaged by a large impact such as an earthquake, the mounting table loses the part that supported it, but there is a support structure below the mounting table. Therefore, the mounting table that has fallen without support is received by the support structure and mounted on the upper end surface. Accordingly, since the leg fixed while being mounted on the mounting table is supported by the support structure, the leg is prevented from tipping over, and the tank supported by the leg is prevented from tipping over. .
本発明にかかる支持構造は、上記構成に加え、
「それぞれの前記スケール部では、前記載置台に貫設された孔部、及び前記支持構造体に貫設された孔部にボルトがルーズに挿入されていることにより、前記支持構造体と前記載置台とは締結されることなく位置決めされている」ものとすることができる。 The support structure according to the present invention, in addition to the above configuration,
"In each of the scale portions, a bolt is loosely inserted into a hole penetrating the mounting table and a hole penetrating the support structure, so that the support structure and the support structure are connected to each other. It is positioned without being fastened to the mounting table. "
「それぞれの前記スケール部では、前記載置台に貫設された孔部、及び前記支持構造体に貫設された孔部にボルトがルーズに挿入されていることにより、前記支持構造体と前記載置台とは締結されることなく位置決めされている」ものとすることができる。 The support structure according to the present invention, in addition to the above configuration,
"In each of the scale portions, a bolt is loosely inserted into a hole penetrating the mounting table and a hole penetrating the support structure, so that the support structure and the support structure are connected to each other. It is positioned without being fastened to the mounting table. "
本構成では、載置台及び支持構造体それぞれに貫設された孔部に挿入されたボルトによって、載置台及び支持構造体それぞれが相手方に対して位置決めされている。これにより、地震などによって大きく振動した場合であっても、支持構造体が載置台の下方に存在する位置関係が崩れることはなく、支持構造体によって載置台を確実に支持することができる。そして、ボルトは載置台に貫設された孔部、及び支持構造体に貫設された孔部それぞれにルーズに挿入されているだけであり、載置台と支持構造体は締結されていないため、スケール付きタンクが正常に使用されている状態では、ボルトによる上記の位置決めは、ロードセルによる重量の検知に影響を与えない。
In this configuration, the mounting table and the support structure are positioned relative to each other by bolts inserted into holes penetrating through the mounting table and the support structure, respectively. Accordingly, even when the support structure is greatly vibrated due to an earthquake or the like, the positional relationship in which the support structure exists below the mounting table does not collapse, and the mounting table can be reliably supported by the support structure. Then, the bolt is only loosely inserted into each of the holes penetrating the mounting table and the holes penetrating the support structure, and the mounting table and the support structure are not fastened. When the scaled tank is used normally, the above-described positioning by the bolt does not affect the weight detection by the load cell.
以上のように、本発明によれば、支持脚の下端と設置面との間に歪みゲージ式ロードセルが配置されたスケール付きタンクであって、ロードセルが損傷した場合であっても転倒が防止されているスケール付きタンクを提供することができる。
As described above, according to the present invention, a tank with a scale in which a strain gauge type load cell is arranged between the lower end of the support leg and the installation surface, and even if the load cell is damaged, overturn is prevented. Scaled tanks can be provided.
以下、本発明の具体的な実施形態について、図1乃至図5を用いて説明する。以下の説明における「上下」は、スケール付きタンク1を設置面Gに立設させた使用状態における上下である。
Hereinafter, a specific embodiment of the present invention will be described with reference to FIGS. In the following description, “up and down” means upper and lower in a use state where the tank with scale 1 is erected on the installation surface G.
本実施形態のスケール付きタンク1は、タンク10と、複数の脚部20と、脚部20ごとに設けられた複数のスケール部Sとを備えている。タンク10は、円筒状部11の上方に円錐形部12が延設されていると共に、下方に逆円錐形部13が延設されているものであり、円錐形部12の上端に開閉可能に形成された供給口15と、逆円錐形部13の下端に開閉可能に形成された排出口16とを備えている。
タ ン ク The tank 1 with a scale of the present embodiment includes a tank 10, a plurality of legs 20, and a plurality of scales S provided for each leg 20. The tank 10 has a conical part 12 extending above the cylindrical part 11 and an inverted conical part 13 extending below. The tank 10 is openable and closable at the upper end of the conical part 12. It has a supply port 15 formed and a discharge port 16 formed at the lower end of the inverted conical portion 13 so as to be openable and closable.
タンク10を支持している脚部20は、チャンネル鋼で形成された支柱21と、支柱21の下端を下方から被覆している平板状の脚底面部22とを備えている。脚底面部22は、脚部20の機械的強度を高めると共に、脚部20の下端における支柱21の軸方向に直交する方向の面積を大きなものとしている。支柱21は、円筒状部11の軸方向に対して平行に、円筒状部11の表面に固定されている。脚底面部22の中央には、孔部25が貫設されている。
The leg 20 supporting the tank 10 includes a column 21 made of channel steel, and a plate-shaped leg bottom 22 covering the lower end of the column 21 from below. The leg bottom surface portion 22 increases the mechanical strength of the leg portion 20 and increases the area of the lower end of the leg portion 20 in the direction orthogonal to the axial direction of the column 21. The support 21 is fixed to the surface of the cylindrical portion 11 in parallel with the axial direction of the cylindrical portion 11. A hole 25 is formed in the center of the leg bottom portion 22.
複数の脚部20は、円筒状部11の中心軸に対して等角度間隔で設けられている。図1では、脚部20が6本である場合を例示しているが、脚部20の本数はタンク10の大きさや重量に応じて設定することができ、例えば、3本から8本とすることができる。スケール付きタンク1は、タンク10と脚部20とを連結する横架材29を更に備えており、脚部20によるタンク10の支持構造の機械的強度が補強されている。
The plurality of legs 20 are provided at equal angular intervals with respect to the central axis of the cylindrical portion 11. FIG. 1 illustrates a case where the number of the legs 20 is six, but the number of the legs 20 can be set according to the size and weight of the tank 10, for example, from three to eight. be able to. The scaled tank 1 further includes a horizontal member 29 connecting the tank 10 and the leg 20, and the mechanical strength of the supporting structure of the tank 10 by the leg 20 is reinforced.
スケール部Sは、複数の脚部20それぞれの下端と設置面Gとの間に設けられている。すなわち、スケール部Sの数は脚部20の本数と同数である。それぞれのスケール部Sは、載置台30と、歪みゲージ式のロードセル40と、荷重伝達部50と、二以上の支持構造体60とを具備している。
The scale portion S is provided between the lower end of each of the plurality of legs 20 and the installation surface G. That is, the number of the scale portions S is the same as the number of the leg portions 20. Each of the scale units S includes a mounting table 30, a strain gauge type load cell 40, a load transmitting unit 50, and two or more support structures 60.
載置台30は、脚底面部22より大きい面積を有する長方形の平板であり、中央に孔部31が貫設されている。また、載置台30の一対の短辺それぞれの近傍には、孔部31から等距離となる位置に第二孔部32が貫設されている。
The mounting table 30 is a rectangular flat plate having an area larger than the leg bottom 22 and has a hole 31 penetrating the center. Further, near the pair of short sides of the mounting table 30, second holes 32 are provided at positions equidistant from the holes 31.
ロードセル40は、ロードセル本体41と、固定用ベース43と、設置用ベース44とを備えている。ロードセル本体41は、起歪体からなる荷重受部41aを一端側に有すると共に、他端側に固定部41bを有し、起歪体に歪みゲージ(図面に表れない)が取り付けられているビーム型である。固定用ベース43は直方体形状のブロックであり、ロードセル本体41の固定部41bがボルト47によって取り付けられる。固定部41bが固定用ベース43に固定されることにより、荷重受部41aの下方には固定用ベース43の高さ分だけ空間が形成される。
The load cell 40 includes a load cell main body 41, a fixing base 43, and an installation base 44. The load cell main body 41 has a load receiving portion 41a made of a strain body on one end side, has a fixed portion 41b on the other end side, and has a strain gauge attached to a strain gauge (not shown in the drawing). Type. The fixing base 43 is a rectangular parallelepiped block, and the fixing portion 41 b of the load cell main body 41 is attached by a bolt 47. By fixing the fixing portion 41b to the fixing base 43, a space is formed below the load receiving portion 41a by the height of the fixing base 43.
設置用ベース44は平板であり、その上面に固定用ベース43が固定されると共に、アンカー(図示を省略)によって設置面Gに固定される。従って、設置用ベース44は、固定用ベース43を介してロードセル本体41を設置面Gに固定するものである。なお、設置用ベース44の一対の側辺からは、上方に向かって保護壁49が立ち上がっている。
The installation base 44 is a flat plate, and the fixing base 43 is fixed on the upper surface thereof, and is fixed to the installation surface G by an anchor (not shown). Therefore, the installation base 44 fixes the load cell main body 41 to the installation surface G via the fixing base 43. In addition, the protection wall 49 rises upward from a pair of side edges of the installation base 44.
荷重伝達部50は、軸方向を上下方向とする複数の部材を同軸に連結してなるものであり、その下端はロードセル本体41の荷重受部41aに当接している。荷重伝達部50の上端は、載置台30の孔部31に挿入される外径の雄ネジである連結軸51で構成されている。また、荷重伝達部50において連結軸51の下には、孔部31より大きな外径を有する円柱である大径部52が設けられている。なお、荷重伝達部50を構成する複数の部材に、球体と球面受け座を含めることができる。
The load transmitting unit 50 is formed by coaxially connecting a plurality of members whose axial direction is the vertical direction, and the lower end thereof is in contact with the load receiving unit 41 a of the load cell main body 41. The upper end of the load transmitting portion 50 is formed of a connecting shaft 51 which is an externally threaded male screw inserted into the hole 31 of the mounting table 30. A large-diameter portion 52, which is a cylinder having an outer diameter larger than the hole portion 31, is provided below the connection shaft 51 in the load transmitting portion 50. The plurality of members constituting the load transmitting unit 50 can include a sphere and a spherical seat.
連結軸51は、載置台30の下面に大径部52の上面を当接させた状態で孔部31に下方から挿入され、更に脚底面部22の孔部25に下方から挿入された上で、脚底面部22の上方からナット54で留め付けられている。ここで、ナット54と載置台30との間には、貫設された孔部58に連結軸51を挿通させた平板状の押さえ板56を介在させている。連結軸51の雄ネジに対してナット54の雌ネジを締め付けることにより、押さえ板56と大径部52との間に脚底面部22と載置台30とが挟持され、脚部20及び載置台30が荷重伝達部50に連結される。
The connecting shaft 51 is inserted into the hole 31 from below with the upper surface of the large-diameter portion 52 abutting against the lower surface of the mounting table 30, and further inserted into the hole 25 of the leg bottom portion 22 from below. It is fastened with a nut 54 from above the leg bottom portion 22. Here, between the nut 54 and the mounting table 30, a flat pressing plate 56 in which the connecting shaft 51 is inserted through a through hole 58 is interposed. By tightening the female screw of the nut 54 to the male screw of the connecting shaft 51, the leg bottom portion 22 and the mounting table 30 are sandwiched between the holding plate 56 and the large-diameter portion 52, and the leg portion 20 and the mounting table 30. Are connected to the load transmitting unit 50.
これにより、載置台30にかかる荷重、すなわち、タンク10及び内応物の重量のうち一本の脚部20が負担する重量、脚部20の重量、及び載置台30の自重の和が、荷重伝達部50を介してロードセル本体41の荷重受部41aに伝達される。ここで、荷重伝達部50の連結軸51が挿入されている孔部25は脚底面部22の中心にあるため、軸方向を上下方向とする荷重伝達部50の下端を当接させた荷重受部41aは、脚部20の直下に位置している。
As a result, the load applied to the mounting table 30, that is, the sum of the weight borne by one leg 20, the weight of the leg 20, and the weight of the mounting table 30 out of the weight of the tank 10 and the internal substance is transmitted to the load. The power is transmitted to the load receiving portion 41a of the load cell main body 41 via the portion 50. Here, since the hole 25 into which the connecting shaft 51 of the load transmitting portion 50 is inserted is located at the center of the leg bottom portion 22, the load receiving portion in which the lower end of the load transmitting portion 50 whose vertical direction is the axial direction abuts. 41 a is located directly below the leg 20.
支持構造体60は本実施形態では二つあり、ロードセル40に接触することなく、ロードセル40を挟んで対称に配置されている。それぞれの支持構造体60は、設置面に当接させる平板状の下プレート62と、下プレート62に平行な平板状の上プレート61と、下プレート62及び上プレート61それぞれを中央で連結している平板状の立壁63とを備える、断面I字形の形鋼を用いて形成されている。また、それぞれの支持構造体60は、立壁63の中央から直角に延出しつつ上プレート61と下プレート62とを連結している補強リブ64を更に備えている。ここで、本実施形態における上プレート61の上面が、本発明の「支持構造体の上端面」に相当する。
There are two support structures 60 in this embodiment, and they are symmetrically arranged with the load cell 40 interposed therebetween without contacting the load cell 40. Each support structure 60 is formed by connecting a flat plate-shaped lower plate 62 to be in contact with the installation surface, a flat plate-shaped upper plate 61 parallel to the lower plate 62, and the lower plate 62 and the upper plate 61 at the center. And a flat steel wall 63 having an I-shaped cross section. Further, each support structure 60 further includes a reinforcing rib 64 extending perpendicularly from the center of the upright wall 63 and connecting the upper plate 61 and the lower plate 62. Here, the upper surface of the upper plate 61 in the present embodiment corresponds to “the upper end surface of the support structure” of the present invention.
上プレート61の高さは、その上面が載置台30より低い高さとなるように設定される。すなわち、仮にタンク10に収容可能な上限値の内容物がタンク10の内部に収容され、これに応じてロードセル40の起歪体が変形することにより、荷重伝達部50を介して載置台30が下降したとしても、載置台30と上プレート61との間に空隙があけられた状態が維持されるように、上プレート61の高さが設定される。
The height of the upper plate 61 is set so that the upper surface thereof is lower than the mounting table 30. That is, the contents of the upper limit value that can be accommodated in the tank 10 are temporarily accommodated in the tank 10, and the strain body of the load cell 40 is deformed accordingly, whereby the mounting table 30 is moved through the load transmitting unit 50. The height of the upper plate 61 is set so that a space is maintained between the mounting table 30 and the upper plate 61 even if the lowering unit descends.
二つの支持構造体60はそれぞれ、図3に示すように、脚底面部22より大きい面積を有する載置台30において脚底面部22より外側まで張り出している部分の下方に、上プレート61が位置するように配置されている。また、本実施形態の上プレート61は、長方形である載置台30と長辺の方向が直交している長方形であり、上プレート61の長辺の長さは載置台30の短辺の長さより大きい。すなわち、図3に示すように、支持構造体60の上プレート61は、載置台30の真下にある部分からはみ出した部分を有している。
As shown in FIG. 3, each of the two support structures 60 is such that the upper plate 61 is located below a portion of the mounting table 30 having an area larger than the leg bottom portion 22 and extending to the outside of the leg bottom portion 22. Are located. Further, the upper plate 61 of the present embodiment is a rectangle in which the direction of the long side is orthogonal to the rectangular mounting table 30, and the length of the long side of the upper plate 61 is longer than the length of the short side of the mounting table 30. large. That is, as shown in FIG. 3, the upper plate 61 of the support structure 60 has a portion protruding from a portion directly below the mounting table 30.
それぞれの支持構造体60の上プレート61には、立壁63及び補強リブ64と干渉しない位置で、且つ、載置台30の第二孔部32の直下となる位置に、孔部65が貫設されている。そして、頭部71付きのボルト70が、載置台30の第二孔部32に上方から挿入され、更に上プレート61の孔部65に上方から挿入されている。このボルト70には、載置台30の上プレート61の下方からナット72が螺合させてあるが、ナット72はボルト70に対して締め付けられていない状態である。そして、載置台30の第二孔部32及び上プレート61の孔部65の大きさは、ボルト70の頭部71よりは小さいが、ボルト70の外径より十分に大きい。
In the upper plate 61 of each support structure 60, a hole 65 is provided at a position not interfering with the standing wall 63 and the reinforcing rib 64 and at a position directly below the second hole 32 of the mounting table 30. ing. Then, the bolt 70 with the head 71 is inserted into the second hole 32 of the mounting table 30 from above, and further inserted into the hole 65 of the upper plate 61 from above. A nut 72 is screwed into the bolt 70 from below the upper plate 61 of the mounting table 30, but the nut 72 is not tightened to the bolt 70. The sizes of the second hole 32 of the mounting table 30 and the hole 65 of the upper plate 61 are smaller than the head 71 of the bolt 70 but sufficiently larger than the outer diameter of the bolt 70.
従って、ボルト70は、第二孔部32及び孔部65にルーズに挿入された状態である。つまり、ボルト70は、頭部71によって下方への抜け落ちが防止され、ナット72によって上方への抜け出しが防止されているものの、載置台30及び上プレート61を締結してはいない。換言すれば、ボルト70は、載置台30にかかる荷重を支持構造体60に伝えることなく、載置台30及び支持構造体60を相手に対して位置決めしているものである。
Accordingly, the bolt 70 is loosely inserted into the second hole 32 and the hole 65. That is, although the bolt 70 is prevented from dropping downward by the head 71 and prevented from lifting upward by the nut 72, the mounting table 30 and the upper plate 61 are not fastened. In other words, the bolt 70 positions the mounting table 30 and the support structure 60 with respect to the counterpart without transmitting the load applied to the mounting table 30 to the support structure 60.
上記構成により、図5(a)に示すように、通常の使用状態にあるスケール付きタンク1では、一つのロードセル40によって検知される重量は、載置台30にかかる荷重であって、タンク10及び内応物の重量のうち一本の脚部20が負担する重量、脚部20一本の重量、及び載置台30一つの自重の和である。載置台30の下方には支持構造体60が存在するが、載置台30と支持構造体60とはボルト70によってルーズに位置決めされているのみであるため、載置台30にかかる荷重は支持構造体60に伝達されることはない。加えて、支持構造体60はロードセル40に接触していないため、ロードセル40による重量の検知に支持構造体60が影響することもない。従って、ロードセル40によって検知された重量から、風袋(タンク10の重量のうち一本の脚部20が負担する重量、脚部20一本の重量、及び載置台30一つの自重の和)を減算すれば、タンク10の内応物の重量のうち一本の脚部20が負担する重量を知ることができ、複数のロードセル40による検出値を総合することにより、タンク10の内応物の総重量を把握することができる。
According to the above configuration, as shown in FIG. 5A, in the tank with scale 1 in a normal use state, the weight detected by one load cell 40 is the load applied to the mounting table 30, It is the sum of the weight of one leg 20, the weight of one leg 20, and the weight of one mounting table 30 among the weights of the internal product. The support structure 60 exists below the mounting table 30, but since the mounting table 30 and the support structure 60 are only loosely positioned by the bolts 70, the load applied to the mounting table 30 is reduced. It is not transmitted to 60. In addition, since the support structure 60 is not in contact with the load cell 40, the support structure 60 does not affect the weight detection by the load cell 40. Therefore, the tare (the sum of the weight of one leg 20, the weight of one leg 20, and the own weight of one mounting table 30 of the weight of the tank 10) is subtracted from the weight detected by the load cell 40. Then, the weight borne by one leg portion 20 of the weight of the internal substance of the tank 10 can be known, and the total weight of the internal substance of the tank 10 can be calculated by integrating the detection values of the plurality of load cells 40. You can figure out.
そして、万一、地震など大きな衝撃によってロードセル40が損傷した場合、例えば、荷重伝達部50が破損し、或いは、ロードセル本体41が座屈した場合、従来では、設置面Gに対して支持していた部分を失った脚部20が転倒することによりタンク10が転倒するおそれがあった。これに対し、本実施形態のスケール付きタンク1では、ロードセル40の損傷によって設置面Gに対して支持していた部分を失った載置台30が自重により落下したとしても、その下方には支持構造体60が存在する。そのため、図5(b)に示すように、載置台30は支持構造体60の上プレート61の上に載置されることとなり、支持構造体60によって支持される。従って、載置台30に載置されている状態で載置台30に固定されている脚部20は転倒することがなく、脚部20が支持しているタンク10の転倒を有効に抑制することができる。
If the load cell 40 is damaged by a large impact such as an earthquake, for example, if the load transmitting unit 50 is damaged or the load cell body 41 buckles, the load cell 40 is conventionally supported on the installation surface G. There is a possibility that the tank 10 may fall over due to the fall of the leg portion 20 having lost the damaged portion. On the other hand, in the tank 1 with the scale of the present embodiment, even if the mounting table 30 which has lost the portion supported by the mounting surface G due to the damage of the load cell 40 falls due to its own weight, the supporting structure is provided below it. The body 60 is present. Therefore, as shown in FIG. 5B, the mounting table 30 is mounted on the upper plate 61 of the support structure 60 and is supported by the support structure 60. Therefore, the legs 20 fixed to the mounting table 30 while being mounted on the mounting table 30 do not fall, and it is possible to effectively suppress the tank 10 supported by the legs 20 from falling. it can.
また、支持構造体60は、頑丈で剛性の高い形鋼で形成されているため、タンク10を支持している脚部20が固定された載置台30を、しっかりと受け止めることができる。特に、本実施形態の支持構造体60は、断面I字形の形鋼に更に補助リブ64を設けているため、支持構造体60の機械的強度がより高められている。
Since the supporting structure 60 is formed of a strong and rigid shaped steel, the mounting table 30 to which the leg 20 supporting the tank 10 is fixed can be firmly received. In particular, in the support structure 60 of the present embodiment, since the auxiliary rib 64 is further provided on the I-shaped cross-section steel, the mechanical strength of the support structure 60 is further increased.
加えて本実施形態では、支持構造体60の上プレート61は、載置台30の真下にある部分からはみ出した部分を有している。そのため、載置台30の位置が支持構造体60に対して多少ずれたとしても、ロードセル40が損傷した場合に載置台30を支持構造体60で受け止めることができる。更に本実施形態では、載置台30と支持構造体60の上プレート61とがボルト70によってルーズに位置決めされている。そのため、地震によって大きな振動が作用したとしても、載置台30の位置が支持構造体60に対して大きくずれることはなく、ロードセル40が損傷した場合に載置台30を支持構造体60で確実に支持することができる。
In addition, in the present embodiment, the upper plate 61 of the support structure 60 has a portion protruding from a portion directly below the mounting table 30. Therefore, even if the position of the mounting table 30 is slightly shifted with respect to the support structure 60, the mounting table 30 can be received by the support structure 60 when the load cell 40 is damaged. Further, in this embodiment, the mounting table 30 and the upper plate 61 of the support structure 60 are loosely positioned by the bolts 70. Therefore, even if a large vibration acts due to an earthquake, the position of the mounting table 30 does not significantly shift with respect to the support structure 60, and the mounting table 30 is reliably supported by the support structure 60 when the load cell 40 is damaged. can do.
そして、支持構造体60は断面I字形の形鋼を用いて形成されているため、上プレート61は立壁63より張り出した部分を有している。従って、剛性の高い形鋼を使用しながら、載置台30と支持構造体60とをルーズに連結するためのボルト70を通す孔部65を、支持構造体60おいて容易に貫設することができる。
(4) Since the support structure 60 is formed using a section steel having an I-shaped cross section, the upper plate 61 has a portion projecting from the standing wall 63. Therefore, the hole 65 through which the bolt 70 for loosely connecting the mounting table 30 and the support structure 60 is passed through the support structure 60 can be easily formed while using a highly rigid section steel. it can.
以上、本発明について好適な実施形態を挙げて説明したが、本発明は上記の実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲において、種々の改良及び設計の変更が可能である。
As described above, the present invention has been described with reference to the preferred embodiments. However, the present invention is not limited to the above embodiments, and various improvements and design changes can be made without departing from the gist of the present invention. It is.
例えば、上記の実施形態では、支持構造体60の数が二つであり、ロードセル40を挟んで対称に設置される場合を例示した。これに限定されず、より多数の支持構造体60を、ロードセル40を囲むように配置すると共に、これら多数の支持構造体60の上端面の何れとも平面視で重複するように、載置台30の面積を大きく設定することができる。これにより、ロードセル40の損傷によって載置台30が落下する際、地震などの振動によって落下方向が種々となっても、確実に載置台30を支持構造体60で支持することができる。
For example, in the above embodiment, the case where the number of the support structures 60 is two and the support structures 60 are symmetrically disposed with the load cell 40 interposed therebetween is illustrated. The present invention is not limited to this, and a larger number of support structures 60 are arranged so as to surround the load cell 40, and the mounting table 30 of the mounting table 30 is overlapped with any of the upper end surfaces of these many support structures 60 in plan view. The area can be set large. Thus, when the mounting table 30 falls due to damage to the load cell 40, the mounting table 30 can be reliably supported by the support structure 60 even if the falling direction varies due to vibration such as an earthquake.
また、上記では、ロードセル本体41がビーム型である場合を例示したが、コラム型やディスク型など、ロードセル本体の形状が異なるロードセルを使用することもできる。
In the above, the case where the load cell main body 41 is of a beam type has been described as an example. However, a load cell having a different shape of the load cell main body such as a column type or a disk type may be used.
Claims (2)
- タンクを支持している複数の脚部それぞれの下端にスケール部を備えるスケール付きタンクであって、
それぞれの前記スケール部は、
前記脚部を載置した状態で前記脚部が固定されている載置台と、
前記脚部の直下に荷重受部を位置させている歪みゲージ式のロードセルと、
前記載置台に上端側で連結されていると共に、下端が前記荷重受部に当接していることにより、前記載置台にかかる荷重を前記荷重受部に伝達する荷重伝達部と、
前記ロードセルと接触することなく、前記ロードセルの周囲に配置されている二以上の支持構造体と、を具備し、
それぞれの前記支持構造体の上端面は、少なくとも一部が前記載置台の下方に位置していると共に、前記載置台との間に空隙があけられている
ことを特徴とするスケール付きタンク。 A scale-equipped tank including a scale portion at a lower end of each of a plurality of legs supporting the tank,
Each of the scale parts is
A mounting table on which the leg is fixed while the leg is mounted,
A strain gauge type load cell in which a load receiving part is located immediately below the leg,
A load transmitting portion that transmits the load applied to the mounting table to the load receiving portion, wherein the load transmitting portion is connected to the mounting table on the upper end side, and the lower end is in contact with the load receiving portion.
Without contacting the load cell, two or more support structures disposed around the load cell,
A tank with a scale, wherein at least a part of an upper end surface of each of the support structures is located below the mounting table, and a gap is provided between the supporting structure and the mounting table. - それぞれの前記スケール部では、前記載置台に貫設された孔部、及び前記支持構造体に貫設された孔部にボルトがルーズに挿入されていることにより、前記支持構造体と前記載置台とは締結されることなく位置決めされている
ことを特徴とする請求項1に記載のスケール付きタンク。 In each of the scale portions, a bolt is loosely inserted into a hole penetrating the mounting table and a hole penetrating the support structure, so that the supporting structure and the mounting table are loosely inserted. The tank with a scale according to claim 1, wherein the tank is positioned without being fastened.
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PCT/JP2018/035569 WO2020065746A1 (en) | 2018-09-26 | 2018-09-26 | Tank with scales |
JP2020547654A JPWO2020065746A1 (en) | 2018-09-26 | 2018-09-26 | Tank with scale |
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JPS54171369U (en) * | 1978-05-24 | 1979-12-04 | ||
JPS61232194A (en) * | 1985-04-06 | 1986-10-16 | 株式会社クボタ | Feed silo |
JPH0595897U (en) * | 1991-10-30 | 1993-12-27 | 株式会社日本アルミ | Silo support structure |
JP3006545U (en) * | 1994-07-11 | 1995-01-24 | 株式会社横山電機製作所 | A tank for feed, etc. with a weighing device that has a load cell storage unit with a vibration-proof mechanism in the middle of the legs. |
JP2003149039A (en) * | 2001-11-19 | 2003-05-21 | Sartorius Kk | Weighing support structure for large-sized silo |
US20120204978A1 (en) * | 2010-01-11 | 2012-08-16 | Ozamiz Fortis Pablo | Management system for managing bulk material inside a silo |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006300579A (en) * | 2005-04-18 | 2006-11-02 | Tanita Corp | Load transmission mechanism |
JP5737920B2 (en) * | 2010-12-13 | 2015-06-17 | 三菱重工業株式会社 | Independent tank support structure |
CN204433490U (en) * | 2014-12-31 | 2015-07-01 | 马弗橡塑(镇江)有限公司 | A kind of storage bin produced for elastomeric compound |
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2018
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- 2018-09-26 WO PCT/JP2018/035569 patent/WO2020065746A1/en active Application Filing
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Patent Citations (6)
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JPS54171369U (en) * | 1978-05-24 | 1979-12-04 | ||
JPS61232194A (en) * | 1985-04-06 | 1986-10-16 | 株式会社クボタ | Feed silo |
JPH0595897U (en) * | 1991-10-30 | 1993-12-27 | 株式会社日本アルミ | Silo support structure |
JP3006545U (en) * | 1994-07-11 | 1995-01-24 | 株式会社横山電機製作所 | A tank for feed, etc. with a weighing device that has a load cell storage unit with a vibration-proof mechanism in the middle of the legs. |
JP2003149039A (en) * | 2001-11-19 | 2003-05-21 | Sartorius Kk | Weighing support structure for large-sized silo |
US20120204978A1 (en) * | 2010-01-11 | 2012-08-16 | Ozamiz Fortis Pablo | Management system for managing bulk material inside a silo |
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