WO2014045463A1 - Conteneur à poudre et tamis à poudre - Google Patents

Conteneur à poudre et tamis à poudre Download PDF

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Publication number
WO2014045463A1
WO2014045463A1 PCT/JP2012/080474 JP2012080474W WO2014045463A1 WO 2014045463 A1 WO2014045463 A1 WO 2014045463A1 JP 2012080474 W JP2012080474 W JP 2012080474W WO 2014045463 A1 WO2014045463 A1 WO 2014045463A1
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WO
WIPO (PCT)
Prior art keywords
powder
case
soil
powder case
sieve
Prior art date
Application number
PCT/JP2012/080474
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English (en)
Japanese (ja)
Inventor
正行 大石
Original Assignee
大起理化工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 大起理化工業株式会社 filed Critical 大起理化工業株式会社
Publication of WO2014045463A1 publication Critical patent/WO2014045463A1/fr

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D1/00—Investigation of foundation soil in situ
    • E02D1/02—Investigation of foundation soil in situ before construction work
    • E02D1/04—Sampling of soil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/08—Screens rotating within their own plane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/38—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens oscillating in a circular arc in their own plane; Plansifters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting

Definitions

  • the present invention relates to a powder case and a powder sieve.
  • Soil sieve In the field of experimental research and soil analysis, in order to sample natural soil and extract soil in a specific particle size range (hereinafter referred to as extracted soil) from the sampled soil (hereinafter referred to as sampled soil) , Soil sieve is used.
  • the soil sifter described in Japanese Patent No. 5055524 rotates the soil case containing the soil and rotates it to perform the sieving process, thereby improving the efficiency of the sieving process.
  • soil is likely to adhere to the inner wall surface of the soil case.
  • the inside of the soil case must be cleaned to remove the adhering soil.
  • the remaining soil needs to be discarded or re-sieved.
  • the amount of the extraction soil obtained from the same amount of sampling soil decreases, so the extraction efficiency decreases.
  • the sieving process is carried out again, most of them adhere to the inner wall surface of the soil case, so it can not be expected that the extracted soil can be obtained.
  • the problems as described above are not limited to the soil case and the soil sifter, and the same applies to a powder case provided with a sieve for sieving powder and a powder sifter having the powder case.
  • the present invention has been made in view of the above problems, and it is an object of the present invention to provide a powder case and a powder sifter capable of performing a sieving process with high efficiency and in which the contained soil is less likely to adhere to the inner wall surface.
  • the present invention has been made in view of the above problems, and aims to provide a powder case and a powder sieve.
  • the present invention is a powder case which is rotatably disposed in a state of containing powder, and which is a powder case for sieving the stored powder, wherein a powder container for containing the powder, and the powder to which the sieve is collected are recovered.
  • a powder collecting container, and a through hole disposed between the powder container and the powder collecting container and communicating internal spaces with each other, wherein the powder being sieved by passing through the through hole The inner wall in the vicinity of the open end of the powder container is characterized by moving away from the rotation axis of the powder container towards the powder collection container.
  • the powder sieve has a sieve area on the side of the powder container, and a storage container detaching mechanism is provided between the powder container and the powder sieve so as to releasably connect each other, and the sieve area of the powder sieve is provided.
  • the open end of the powder storage portion is in annular contact with the periphery of the powder storage portion, and the storage container detaching mechanism includes a storage container side locking portion provided at the open end of the powder storage container, and the sieve area. It is preferable to have a storage container sieve side locking part that is provided and that can be locked with the storage container side locking part.
  • the inner wall in the vicinity of the opening end of the powder recovery container is farther from the rotation axis of the powder container than the inner wall in the vicinity of the opening end of the powder container.
  • the powder sieve has a sieve area on the powder container side, and an outer cover for containing the powder container, and an outer cover attaching / detaching mechanism for detachably connecting the outer cover and the powder sieve with each other.
  • the outer cover attaching / detaching mechanism is a cover side engaging portion provided at the open end of the outer cover, and a cover provided around the sieve area and capable of engaging with the cover side engaging portion
  • a screen side locking portion the outer cover has a case locking portion for locking to the powder container, and the cover side locking portion and the cover screen side locking portion In the locked state, it is preferable that the case locking portion presses the powder container toward the powder screen.
  • the powder sieve has a sieve area on the powder container side, and an outer cover for containing the powder container, and an outer cover attaching / detaching mechanism for detachably connecting the outer cover and the powder sieve with each other.
  • the outer cover attaching / detaching mechanism is a cover side engaging portion provided at the open end of the outer cover, and a cover provided around the sieve area and capable of engaging with the cover side engaging portion
  • a sieve side locking portion, and any one of the cover side locking portion and the cover sieve side locking portion is a spiral groove, and the other is a spiral protrusion, and the powder container is It is preferable that the tightening direction of the said powder storage container when it couple
  • a collection container attaching / detaching mechanism for detachably coupling the powder collection container and the powder sieve to each other, wherein the collection container attaching / detaching machine is provided at the opening end of the powder collection container.
  • a stop portion, and a collection container sieve side locking portion provided on the powder sieve and capable of locking with the collection container side locking portion, and for the collection container side locking portion and the collection container.
  • One of the sieve side locking parts is a spiral groove and the other is a spiral protrusion, and the tightening direction of the powder collection container when the powder collection container is coupled to the powder sieve, and the powder case It is preferable that the direction of rotation is opposite to the direction of rotation.
  • a rod-shaped stirring body separately provided in the powder storage container and the powder sieve and disposed in the inner space of the powder storage container and stirring the stored powder.
  • the said powder case was formed from the material which has translucency.
  • the present invention is characterized by comprising a rotating device on which the above powder case is detachably mounted and which rotates and revolves the powder case.
  • the rotation device has a powder case rotation mechanism that rotates the powder case around a rotation axis, and a powder case circulation moving mechanism that moves the powder case in a rotated state on a circulation path, and And a powder case contact member movably provided between a collision position located in a circulation locus and colliding with the powder case and a retracted position retracted from the collision position, and the powder case contact member toward the collision position. And a biasing member for biasing.
  • the timing at which the powder case contacts the powder case contact member is a first contact timing, and the powder case is next to the first contact timing.
  • the timing of contact with the powder case contact member is defined as a second contact timing
  • the first contact portion of the powder case in contact with the powder case contact member at the first contact timing is the second contact timing.
  • the second contact portion is in contact with the powder case contact member.
  • the powder case contact member is provided with a contact member movement mechanism for moving the powder case contact member between the collision position and the retraction position, the contact member movement mechanism is fixed in the vicinity of the circulation path, and the rotation period of the powder case is Preferably, it differs from the circulation cycle of the powder case.
  • the powder case circulation and transfer mechanism has a powder case revolution mechanism that revolves the powder case around the revolution shaft.
  • the powder case rotation mechanism has a powder case rotation gear that is pivotally attached to the powder case and rotates around the rotation axis, and the powder case revolution mechanism directly or indirectly with respect to the powder case side gear
  • it has a powder case revolution gear that meshes around and rotates around the revolution shaft, and a gear ratio between the powder case rotation gear and the powder case revolution gear is larger than one or smaller than one.
  • the powder case rotation mechanism includes a powder case rotation gear shaft-mounted on the powder case and rotating around the rotation shaft, and a rotation motor rotating the powder case rotation gear around the rotation shaft.
  • the powder case revolution mechanism meshes directly or indirectly with the powder case side gear, and rotates a powder case revolution gear rotating around the revolution shaft, and a revolution motor rotates the powder case revolution gear around the revolution shaft It is preferable to further include motor control for controlling the rotation motor and the revolution motor such that the rotation cycle of the powder case is different from the revolution period of the powder case.
  • the powder case contact member is movable along the circulation path.
  • the powder case contact member is in contact with the powder container or the powder recovery container. Moreover, it is preferable that the number of installation of the said powder case contact member is one.
  • a sieve for sieving powder contained in a powder case in the powder case a powder case rotation mechanism for rotating the powder case, and circulation movement of the powder case in a rotating state on a circulation path.
  • a powder case circulating and moving mechanism for moving the powder case, and a powder case contact member movably provided between a collision position which is located within a circulation trajectory of the powder case and collides with the powder case and a retracted position retracted from the collision position; And a biasing member that biases the powder case contact member toward the collision position.
  • the timing at which the powder case contacts the powder case contact member is a first contact timing, and the powder case is next to the first contact timing.
  • the timing of contact with the powder case contact member is defined as a second contact timing
  • the first contact portion of the powder case in contact with the powder case contact member at the first contact timing is the second contact timing.
  • the second contact portion is in contact with the powder case contact member.
  • the powder case contact member is provided with a contact member movement mechanism for moving the powder case contact member between the collision position and the retraction position, the contact member movement mechanism is fixed in the vicinity of the circulation path, and the rotation period of the powder case is Preferably, it differs from the circulation cycle of the powder case.
  • the powder case circulation and transfer mechanism has a powder case revolution mechanism that revolves the powder case around the revolution shaft.
  • the powder case rotation mechanism has a powder case rotation gear that is pivotally attached to the powder case and rotates around the rotation axis, and the powder case revolution mechanism directly or indirectly with respect to the powder case side gear
  • it has a powder case revolution gear that meshes around and rotates around the revolution shaft, and a gear ratio between the powder case rotation gear and the powder case revolution gear is larger than one or smaller than one.
  • the powder case rotation mechanism includes a powder case rotation gear shaft-mounted on the powder case and rotating around the rotation shaft, and a rotation motor rotating the powder case rotation gear around the rotation shaft.
  • the powder case revolution mechanism meshes directly or indirectly with the powder case side gear, and rotates a powder case revolution gear rotating around the revolution shaft, and a revolution motor rotates the powder case revolution gear around the revolution shaft It is preferable to further include motor control for controlling the rotation motor and the revolution motor such that the rotation cycle of the powder case is different from the revolution period of the powder case.
  • the powder case contact member is movable along the circulation path.
  • the powder case contact member is in contact with the powder container or the powder recovery container.
  • the installation number of the said powder case contact member is one.
  • projections for obtaining the powder from the lump or for stirring the powder are formed on the inner wall of the powder case.
  • the sieving process can be performed with high efficiency, and the adhesion of the powder in the powder case can be prevented.
  • FIG. 13 is a cross-sectional view of a second soil sieve taken along line XIII-XIII. It is a sectional view showing an outline of a lid. It is a top view which shows the outline
  • the whole structure of the soil sieve 1 of this embodiment is shown by FIG.
  • the soil sifter 1 separates soil in which soil particles of various sizes in which particle size regions are different are mixed according to a specific particle size region. For example, it is used when separating gravel or roots having a large particle size range and soil having a small particle size range.
  • the soil sifter 1 is for taking out soil having a specific particle size from soil in which soil particles having different particle sizes are mixed, and a plurality (in this case, two) The soil case 10, the rotating device 20 on which the plurality of soil cases 10 are detachably mounted, and a case 29 covering the periphery of the rotating device 20 are provided.
  • the rotating device 20 includes a revolving mechanism and a rotating mechanism.
  • the revolving mechanism is for rotating the soil case 10 around a revolving axis K extending in the vertical direction, and a case fixing portion 21 to which the soil case 10 is fixed, and a revolving body 22 holding the case fixing portion 21 And a motor (drive device) 23 for rotating the revolving body 22 around the revolving axis K.
  • the revolution axis K may be a direction oblique to the vertical direction as long as it extends in the vertical direction.
  • the case fixing portion 21 has a cylindrical shape with a bottom, and holds the soil case 10 by accommodating the lower side of the soil case 10.
  • the rotation shaft body 21A is provided so as to project downward from the center of the bottom surface of the case fixing portion 21, and the lower end portion is pivotally attached to the revolving body 22.
  • the soil case 10 is mounted on the case fixing portion 21 in a detachable manner.
  • An L-shaped locking groove 21M is formed on the inner peripheral surface of the case fixing portion 21.
  • the locking grooves 21M are provided at a predetermined pitch (for example, every 90 °) in the circumferential direction of the outer cover 60.
  • the locking groove 21M is engageable with a cover locking projection 60GT (see FIG.
  • the soil case 10 is locked in the axial direction.
  • the direction in which the circumferential groove 21MB extends with reference to the lower end of the axial groove 21MA is a direction opposite to the rotation direction around the rotation axis J.
  • the soil case 10 is locked in the axial direction and the circumferential direction by engaging the cover locking projection 60GT with such locking groove 21M, that is, the soil case 10 is fixed to the case fixing portion 21 during the sieving process. It can be prevented from coming off.
  • the revolving body 22 includes a bearing 22A rotatably holding the rotation shaft 21A of the case fixing unit 21, a bearing fixing unit 22B holding the outer ring of the bearing 22A, and a revolving plate 22C simultaneously holding a plurality of bearing fixing units 22B. And a revolving shaft 22D disposed at the center of the revolving plate 22C.
  • the bearing fixing portion 22B has a cylindrical shape with a bottom. Accordingly, the bearing fixing portion 22 B covers the case fixing portion 21 such that a gap is formed between the bearing fixing portion 22 B and the case fixing portion 21.
  • the bearing 22A is fixed to the central portion of the bottom of the bearing fixing portion 22B.
  • the revolving plate 22C is formed with an opening 22CA for accommodating the bearing fixing portion 22B, and the outer peripheral surface of the bearing fixing portion 22B is joined to the opening 22CA.
  • the rotation mechanism is for rotating the soil case 10 fixed to the case fixing portion 21 around the rotation axis J, and the rotation shaft body 21A projecting downward from the bottom center of the case fixing portion 21 and the case fixing
  • a planetary bevel gear 25 coaxially connected to the portion 21 and a sun bevel gear 26 disposed inside the revolution radius of the planetary bevel gear 25 are provided.
  • the sun bevel gear 26 is fixed to the housing 29 coaxially with the revolving shaft K, and meshes with all the planetary bevel gears 25 simultaneously.
  • the rotation axis J may be parallel to the revolution axis K or in a direction different from the rotation axis K.
  • the soil case 10 recovers the soil storage container 30 for storing the soil, the soil sieve 40 for sifting the soil stored in the soil storage container 30, and the soil subjected to the screening. And a soil recovery container 50. Furthermore, the soil case 10 may be provided with an outer cover 60 capable of containing the soil container 30.
  • the soil case 10 may be provided with an attachment / detachment mechanism 70 for attaching the parts 30 to 60 in a detachable manner.
  • the attachment / detachment mechanism 70 includes, for example, an accommodation container attachment / detachment mechanism 71 that detachably couples the soil sieve 40 and the soil accommodation container 30, and a collection container detachment mechanism that couples the soil collection container 50 and the soil sieve 40 freely.
  • an outer cover attaching / detaching mechanism 73 for detachably connecting the soil sieve 40 and the outer cover 60.
  • the soil storage container 30 is formed in a cylindrical shape with a bottom, and the internal space of the soil storage container 30 is a soil storage space 30K for storing soil.
  • the soil storage container 30 is disposed in a posture in which the opening 30KX of the soil storage space 30K faces downward.
  • the soil accommodation space 30K has a truncated cone shape in which the diameter on the lower surface (bottom surface) side is large and the diameter on the upper surface (ceiling) side is small.
  • the open end 30 KE of the soil container 30 is formed to be thicker than the other portions so as to expand radially outward of itself.
  • the diameter at the bottom of the soil accommodation space 30K is 10 to 13 cm
  • the diameter at the top of the soil accommodation space 30K is 7 to 8 cm.
  • the height from the bottom of the soil accommodation space 30K to the top surface of the soil accommodation space 30K is, for example, 10 to 13 cm.
  • the surface of the stirring protrusion 30NT or the surface of the inner circumferential surface 30N where the stirring protrusion 30NT is not provided be roughened.
  • the soil recovery container 50 is formed in a cylindrical shape with a bottom, and the internal space of the soil recovery container 50 is a soil recovery space 50K for recovering the soil.
  • the soil recovery container 50 is disposed in a posture in which the opening 50KX of the soil recovery space 50K faces upward.
  • the size of the opening 50 KX of the soil recovery container 50 is larger than the size of the opening 30 KX of the soil container 30.
  • the diameter of the soil recovery space 50K is 12 to 14 cm, and its height is 5 to 10 cm.
  • the soil sieve 40 is disposed between the soil container 30 and the soil recovery container 50, and has a sieve disc 40A formed in a disc shape. As shown in FIGS. 4 and 6, the sieve disc 40A is provided with a plurality of through holes 40AX communicating the soil accommodation space 30K and the soil recovery space 50K.
  • the size of the through hole 40AX is, for example, 2 mm or less in diameter.
  • the distance between the through holes 40AX is, for example, 4 to 5 mm.
  • the surface of the sieve disc 40A located on the soil storage container 30 side is referred to as the soil storage surface 40AA, and the surface opposite to the soil storage surface 40AA, ie, the surface located on the soil recovery container 50 side is the soil collection surface 40AB. It is called.
  • a portion of the soil containing surface 40AA in which the through holes 40AX are formed is referred to as a sieve area A1.
  • the open end 30 KE of the soil container 30 abuts on the soil containing surface 40 AA of the sieve disc 40 A.
  • a containing container abutting area A3 an area in contact with the opening end 30KE of the soil containing container 30 is referred to as a containing container abutting area A3.
  • the container contact area A3 is formed in an annular shape so as to surround the sieve area A1.
  • storage container contact area A3 may overlap with the outer part of sieve area A1 (refer FIG. 9).
  • the opening 50 KX of the soil recovery container 50 is covered by the soil sieve 40 by the contact of the opening end 30 KE with the soil containing surface 40 AA.
  • the opening 30 KX of the soil storage container 30 and the opening 50 KX of the soil recovery container 50 are preferably concentric with the rotation axis J.
  • the soil accommodated in the soil accommodation space 30K of the soil accommodation container 30 is sieved through the through holes 40AX of the sieve disc 40A. Then, the soil that has been sieved is collected in the soil collection space 50K of the soil collection container 50.
  • the portion of the inner circumferential surface 30N that forms the opening 30KX is expanded toward the soil accommodation surface 40AA. Further, in a state where the open end 30 KE of the soil container 30 abuts on the soil containing surface 40 AA of the sieve disc 40 A (see FIG. 3), the opening 30 KX of the soil containing surface 40 AA of the soil sieve 40 and the inner circumferential surface 30 N It is preferable that the angle ⁇ made by the portion to be formed be less than 90 °.
  • the storage container attachment / detachment mechanism 71 detachably couples the soil storage container 30 to the soil sieve 40, and an annular fitting provided at the open end 30 KE of the soil storage container 30.
  • a groove 71KM and an annular fitting protrusion 71TA provided in the container contact area A3 are provided.
  • the fitting protrusion 71TA can be fitted to the fitting groove 71KM.
  • a fitting protrusion may be provided on the open end 30 KE of the soil container 30, and a fitting groove that can be fitted to the fitting protrusion may be provided in the receiving container contact area A 3.
  • the recovery container attachment / detachment mechanism 72 detachably mounts the soil recovery container 50 on the soil sieve 40, is provided on the soil recovery surface 40AB outside the sieve area A1, and is an annular protrusion projecting from the soil recovery surface 40AB.
  • 72TA an engaging spiral protrusion 72RA formed on the outer peripheral surface of the annular protruding portion 72TA, and an inner peripheral surface 50N on the opening 50KX side of the soil recovery container 50, and a mating engageable with the engaging spiral protrusion 72RA And a combined spiral groove 72RB.
  • the outer cover 60 is formed in a cylindrical shape with a bottom, and the inner space of the outer cover 60 is a case housing space 60 K for housing the soil container 30.
  • the outer cover 60 is disposed in a posture in which the opening 60KX of the case housing space 60K faces downward.
  • the outer cover attaching / detaching mechanism 73 detachably couples the outer cover 60 to the soil sieve 40, is located outside the accommodation container contact area A3, and has an annular projection 73TA projecting from the soil accommodation surface 40AA;
  • the outer cover 60 has a locking projection 65 projecting from the inner surface forming the case housing space 60K.
  • the locking projections 65 are provided at equal intervals (for example, four at every 90 °) in the circumferential direction.
  • the locking projection 65 has a top surface projecting portion 65U projecting from the top surface 60U of the outer cover 60 and an inner circumferential surface projecting portion 65N projecting from the inner circumferential surface 60N of the outer cover 60.
  • the size and shape of the top surface projecting portion 65U are not particularly limited as long as they are locked to the top surface 30GU outside the soil storage container 30 when the outer cover 60 is attached to the soil sieve 40.
  • the size and shape of the inner circumferential surface projecting portion 65N are not particularly limited as long as they are locked to the outer circumferential surface 30GM of the soil storage container 30 when the outer cover 60 is attached to the soil sieve 40 .
  • the outer cover 60 has a cover locking projection 60GT protruding from the outer peripheral surface 60G on the opening 60KX side.
  • the cover locking projections 60GT are provided at the same pitch (for example, every 90 °) as the locking groove 21MA in the circumferential direction of the outer cover 60.
  • the cover locking projection 60GT is engageable with the locking groove 21MA shown in FIG.
  • a locking projection engageable with the locking groove 21M may be provided on the soil sieve 40 or the soil recovery container 50.
  • the soil case 10 is removed from the soil sieve 1.
  • the soil storage container 30 is removed from the soil sieve 40, and the soil recovery container 50 is removed from the soil sieve 40 (see FIG. 4).
  • the soil is accommodated in the soil accommodation space 30K of the soil accommodation container 30.
  • the soil sieve 40 is attached to the soil storage container 30 in which the soil is stored in the soil storage space 30K.
  • the soil container 30 and the soil sieve 40 being closely attached by the container attachment and detachment mechanism 71
  • the degree of sealing between the open end 30KE of the soil container 30 and the sieve disc 40A is improved.
  • the soil recovery container 50 is attached to the soil sieve 40.
  • the degree of tightness of the soil recovery space 50K is improved.
  • the outer cover 60 is attached to the soil sieve 40.
  • the degree of sealing between the open end 30KE of the soil containing container 30 and the sieve disc 40A is improved.
  • the soil storage container 30, the soil sieve 40, the soil recovery container 50, and the outer cover 60 can be combined with one another by the mounting and demounting mechanism 70 to assemble the soil case 10 having a high degree of sealing (see FIG. 3).
  • the soil recovery container 50 side of the soil case 10 is fitted into the case fixing portion 21 of the rotating device 20. Therefore, the soil case fitted in the case fixing part 21 revolves along with the revolution of the case fixing part 21 and rotates along with the rotation of the case fixing part 21.
  • the rotation axis J of the case fixing portion 21 is inclined in the inward direction of the revolution radius, the soil case 10 is also inclined.
  • the soil case 10 performs rotation and revolution movements.
  • the soil in the soil container 30 is agitated mainly by the rotation movement.
  • the component force E1 of the centrifugal force E acts in the downward direction of the rotation axis J (see FIG. 7). Since the stirred soil is biased by the component force E J in the direction of passing through the through hole 40AX of the soil sieve 40, the soil separation efficiency can be enhanced. Soil passing through the through holes 40AX and having the same particle size range is deposited in the soil recovery container 50. Therefore, when the sieving process is completed, it is possible to remove only the soil recovery container 50 from the soil case 10 and move the sieved soil to another place.
  • the soil flies up along the inclined inner circumferential surface 30N, and the scattered soil does not stay on the ceiling side. , Is actively going to return to the bottom side. That is, as shown by arrow F, the soil can be convected in the soil storage space 30K, and the stirring efficiency can be enhanced.
  • each peak-shaped stirring protrusion 30NT extending in the direction of the rotation axis J are formed at equal intervals in the circumferential direction.
  • the stirring protrusion 30NT rotates with the soil container 30 to promote the stirring of the stored soil.
  • the soil stirred by the stirring protrusions 30NT and scattered in the soil accommodation space 30K is dispersed and spontaneously falls by positively colliding with the second stirring protrusions 30UT.
  • the soil in the soil storage container 30 is formed by the soil sifter 40 when the plurality of (two) soil cases 10 are rotated simultaneously. It is separated and efficiently collected in the soil collection container 50.
  • the soil case 10 is detachably mounted from the rotation device 20, by preparing, for example, 10 soil cases 10, the next soil sample is not received during the sieving process by the soil sieving apparatus 1. It can be stored in the soil case 10 of use. Therefore, since the soil sifter 1 can always be operated when sifting a large number of soil samples continuously, working efficiency can be dramatically improved.
  • the upper side of the rotation axis J of the soil case 10 is inclined in the inward direction of the revolution radius. Therefore, the component of centrifugal force can be applied to the passing direction (rotational axis direction J) of the soil sieve 30 disposed perpendicularly to the rotational axis J. Therefore, since the stirred soil can be positively pressed to the soil sieve 30, it is possible to increase the separation efficiency by the sieve.
  • the soil storage container 30, the soil sieve 40 and the soil recovery container 50 are configured to be separable from one another. Therefore, it is easy to accommodate the soil, to recover the soil after the sieving process, to change the roughness of the soil sieve, and to improve the working efficiency. In addition, since each part can be easily cleaned, it is possible to easily suppress the contamination. In addition, since the stirring projection 30NT for stirring the soil is formed on the circumferential surface of the soil storage container 30, the stirring of the soil can be promoted, and the sieving operation can be efficiently realized in a short time.
  • the soil collides with the inner circumferential surface 30N of the soil container 30.
  • the portion of the inner circumferential surface 30N that forms the opening 30KX has a shape that is not expanded, the soil that collides with the portion falls downward. Instead, it adheres to the part concerned. Then, if soil remains attached to the portion, new soil is likely to be attached onto the attached soil, that is, soil is likely to be deposited.
  • the opening 30KX of the inner circumferential surface 30NA moves away from the rotation axis J toward the soil sieve 40, that is, the opening 30KX of the inner circumferential surface 30NA is formed It is necessary that the part to be expanded toward the soil containing surface 40AA. More preferably, it is preferable that the entire inner circumferential surface 30NA be expanded toward the soil accommodation surface 40AA. The portion of the inner circumferential surface 30NA forming the opening 30KX may be separated from the revolution axis K as it goes to the soil sieve 40.
  • the opening 30 KX of the soil containing surface 40 AA of the soil sieve 40 and the inner circumferential surface 30 N Since the angle ⁇ made by the portion to be formed is less than 90 °, soil is less likely to adhere to the inner circumferential surface 30NS around the opening 30KX.
  • adhesion of soil can be suppressed even if it spreads opening 30 KX toward soil accommodation side 40AA, and either of angle ⁇ being less than 90 ° is used.
  • the sealing degree of the soil case 10 being improved by the attachment / detachment mechanism 70, it is possible to suppress the soil in the soil case 10 from leaking to the outside. Furthermore, when the outer cover 60 is attached to the soil sieve 40, as a result of the locking projections 65 being locked to the top surface peripheral portion 30 GE of the soil container 30, the soil container 30 abuts against the soil sieve 40. As a result, the degree of tightness of the soil container 30 can be improved, so that the soil accommodated in the soil accommodation space 30K can be more reliably suppressed from leaking to the outside.
  • the inner peripheral surface 50N of the soil collection container 50 is closer to the rotation axis J than the inner peripheral surface 30N of the opening of the soil storage container 30. It is preferred that they are separated. As a result, the soil that has passed through the through holes 40 ⁇ / b> AX of the soil sieve 40 is less likely to adhere to the inner wall surface 50 ⁇ / b> N of the soil collection container 50.
  • the formation direction of the engagement spiral protrusion 73RA and the engagement spiral groove 73RB is a direction in which the outer cover 60 is attached to the soil sieve 40 when the soil case 10 is rotated in the rotation direction A.
  • the relative rotation angle of the soil sieve 40 and the outer cover 60 is about 90 degrees, and the soil sieve 40 and the outer cover 60 It is preferable that it is a thing which can be attached or detached.
  • the direction of formation of the engagement spiral protrusion 72RA and the screwable engagement spiral groove 72RB is Is preferred.
  • the formation length of the engagement spiral protrusion 72RA and the engagement spiral groove 72RB is such that the relative rotation angle between the soil sieve 40 and the soil recovery container 50 is about 90 °, the soil sieve 40 and the soil recovery container 50 It is preferable that the and can be attached and detached.
  • Each portion 30 to 60 constituting the soil case 10 is preferably formed of a light transmitting material, that is, a transparent or translucent material.
  • a light transmitting material that is, a transparent or translucent material.
  • the material having translucency include plastics, among which acrylic, polyethylene terephthalate, polypropylene, polycarbonate and the like.
  • the soil case 10 may be provided with a cylindrical (for example, 18 mm diameter ⁇ 50 mm long) stirring member 80 stored in the soil storage container 30.
  • a cylindrical stirring member 80 stored in the soil storage container 30.
  • the number of stirring members 80 may be one, but is preferably two or more.
  • the rod-like shape like a cylinder is more preferable than the thing of a spherical thing.
  • the space 71MM (see FIG. 4) formed between the annular projecting portion 73TA and the fitting projection 71TA is a shape that can be fitted with the open end 30KE of the soil container 30 in which the fitting groove 71KM is formed. It is also good.
  • the space 71MM functions as the storage container attachment and detachment mechanism 71
  • the annular protrusion 73TA also functions as the storage container attachment and detachment mechanism 71.
  • this embodiment showed only when the motor 23 rotationally drives the revolving body 22, this invention is not limited to this.
  • the revolving body 22 is held in a freely rotatable state and the sun bevel gear 26 is driven by the motor 23, the same action can be obtained. That is, in the rotation device 20, any structure may be used as long as at least any one of a revolution body, a planetary body, and a solar body (or outer ring body) is provided with rotational power.
  • revolution axis K of rotation device 20 was arranged in the perpendicular direction
  • the present invention is not limited to this. It is also preferable that the entire planetary mechanism including the revolving member 22, the planetary bevel gear 25 and the sun bevel gear 26 be inclined with the revolving shaft K inclined. It is preferable to make rotation axis J and revolution axis K parallel. Furthermore, it is also desirable to provide an angle adjustment mechanism so that this overall inclination angle can be changed.
  • the soil case 110 which is a modification of the soil case 10 of the said embodiment is the soil which sifts the soil accommodated in the soil accommodation container 130 which accommodates soil, and the soil accommodated in the soil accommodation container 130.
  • a sieve 140 and a soil recovery container 150 for recovering the sieved soil are provided.
  • the soil case 110 may be provided with an outer cover 160 capable of containing the soil container 130.
  • the soil case 110 may be provided with an attachment / detachment mechanism 170 for attaching the parts 130 to 160 in a detachable manner.
  • the attachment / detachment mechanism 170 includes, for example, a storage container attachment / detachment mechanism 171 that detachably connects the soil sieve 140 and the soil storage container 130, and a collection container attachment / detachment mechanism that couples the soil collection container 150 and the soil sieve 140 freely.
  • an outer cover attaching / detaching mechanism 173 for detachably connecting the soil sieve 140 and the outer cover 160.
  • the soil accommodation container 130 is provided with a plurality of stirring projections 130NT protruding from the inner circumferential surface 130NT at equal intervals in the circumferential direction, and except that the outer circumferential surface 130G has the locking projections 65, soil containment It has the same structure as the container 30.
  • the soil sieve 140 and the soil recovery container 150 have the same structure as the soil sieve 140 and the soil recovery container 50, respectively.
  • the outer cover 160 has the same structure as the outer cover 60 except that the locking projection 65 is omitted.
  • the storage container attachment / detachment mechanism 171 has an annular fitting space forming projection 171T provided on the soil storage surface 140AA. By forming the fitting space forming protrusion 171T, a hole 171K that can be fitted to the open end 130KE of the soil container 130 is formed. By fitting the open end 130 KE of the soil container 130 into the hole 171 K, the degree of sealing of the soil container 130 is improved.
  • the recovery container attaching / detaching mechanism 172 has an annular projecting portion 172TA projecting from the soil recovery surface 140AB, and an annular fitting space forming projection 172TB projecting from the soil accommodation surface 140AA inside the annular projecting portion 172TA.
  • a groove 172MM in which the open end 150KE of the soil recovery container 150 can be fitted is formed between the annular protrusion 172TA and the fitting space forming protrusion 172TB.
  • the annular protrusion 172TA is preferably positioned radially outward of the fitting space forming protrusion 171T.
  • the recovery container attaching / detaching mechanism 172 further has an engaging spiral groove 172RA formed on the inner peripheral surface of the annular projecting portion 172TA, and an engaging spiral groove protrusion 172RB on the outer peripheral surface of the open end 150KE of the soil collection container 150.
  • the engagement spiral groove 172RA can be screwed with the engagement spiral groove protrusion 172RB.
  • the outer cover attaching / detaching mechanism 173 has a projecting end 173T extending upward from the upper end of the fitting space forming projection 171T, an accommodation groove 173M provided at the open end 60KX of the outer cover 60 and capable of accommodating the projecting end 173T, and an outer peripheral surface of the projecting end 173T.
  • An engagement spiral protrusion 173RA provided and an engagement spiral groove 173RB provided on the outer wall surface of the accommodation groove 173M are provided.
  • the engagement spiral projection 173RA can be screwed with the engagement spiral groove 173RB.
  • the outer cover 160 further have a recess 160L on the outer peripheral surface on the upper side.
  • the recesses 160L are arranged at predetermined intervals in the circumferential direction.
  • the recesses 160L arranged at predetermined intervals function as a non-slip mechanism when the outer cover 160 is attached and detached.
  • the soil storage container 150 preferably has a recess 150L on the lower outer peripheral surface.
  • the recesses 150L are arranged at predetermined intervals in the circumferential direction.
  • the concave portions 150 ⁇ / b> L arranged at predetermined intervals function as a non-slip mechanism when the soil container 150 is attached and detached.
  • a knurling groove 140L be provided on the outer peripheral surface of the annular protruding portion 172TA by knurling.
  • the knurling groove 140L functions as a non-slip mechanism when the soil sieve 140 is attached and detached.
  • the rotation device of the present invention is not limited to the rotation device 20 of the above embodiment, and may be the rotation device 120 shown in FIGS.
  • the rotating device 120 includes a revolving shaft body 121 provided in the direction of the revolving shaft K, a motor 122 for rotating the revolving shaft body 121 around the revolving shaft K, and a sun spur gear attached to the upper end side of the revolving shaft body 121 123, a support disc 124 disposed in a posture perpendicular to the revolution axis K and fixed to a midway portion of the revolution shaft body 121, and an autorotation axis body provided on the support disc 124 and rotatable around the rotation axis J 125, a planetary spur gear 126 provided on the rotation shaft 125 and capable of meshing with the sun spur gear 123, and a tooth 127 provided on the housing 29 and capable of meshing with the planetary spur gear 126 may be provided.
  • the case fixing portion 21 is axially attached to the planetary spur gear 126 via the rotation shaft 21A.
  • the teeth 127 are preferably provided on the inner wall of the accommodation hole 29K which is opened on the upper surface of the housing 29 and accommodates the components 121 to 126 constituting the revolving mechanism.
  • the rotating device of the present invention for example, the above-mentioned rotating device 20 and rotating device 120
  • the direction of revolution DK of the soil case and the direction of rotation DJ of the soil case be opposite directions (see FIG. 12) ).
  • the soil case 10 and the soil case 110 preferably have a lid 185 attachable to the opening 50KX of the soil recovery container 50 (see FIG. 14).
  • the lid 185 has an annular protrusion 182TA protruding from the inner top surface 185A, and an annular fitting space forming protrusion 182TB protruding from the inner top surface 185A radially inward of the annular protrusion 182TA.
  • a storage space 182MM in which the open end 150KE of the soil recovery container 150 can be stored is formed between the annular protrusion 182TA and the fitting space forming protrusion 182TB.
  • the lid 185 further has an engagement spiral groove 182RA formed on the inner circumferential surface of the annular protrusion 182TA.
  • the engagement spiral groove 182RA can be screwed with the engagement spiral groove projection 172RB.
  • the soil sifter 1 may be provided with a knock mechanism 210 for dropping the soil adhering to the inner wall of the soil case 10.
  • the knocking mechanism 210 includes a head 211 for knocking the soil case 10 in a revolving state, a head moving mechanism 212 for moving the head 211 freely, and an urging member for urging the head 211 in a predetermined direction. And a spring 213.
  • the head 211 may be of any type as long as the soil attached to the inner surface of the soil case 10 falls when knocked down.
  • Examples of the material for forming the head 211 include metals and plastics.
  • the shape of the head 211 may be any of a roller, a ball, a rectangular parallelepiped, a cube, and the like.
  • a sheet made of urethane is provided in a portion of the head 211 in contact with the soil case 10.
  • the head moving mechanism 212 protrudes from the upper surface of a base 212A fixed to the upper surface of the housing 29, a ball bush 212B provided on the upper surface of the base 212A, a shaft 212S inserted into the ball bush 212B, and a shaft 212S. And a spring mounting protrusion 212T.
  • the ball bush 212 B is provided on the outer peripheral side of the revolution trajectory Z of the soil case 10.
  • the shaft 212S inserted into the ball bush 212B is movable so as to approach or move away from the orbit Z of the soil case 10.
  • the spring attachment projection 212T is provided at a position farther from the revolution trajectory Z of the soil case 10 than the ball bush 212B.
  • the head 211 is provided in the edge part by the side of the revolution axis K of the shaft 212S.
  • the head moving mechanism 212 is provided on the outer peripheral side of the revolution trajectory Z of the soil case 10, but the present invention is not limited to this.
  • the head moving mechanism on the inner peripheral side of the revolving trajectory Z of the soil case 10 212 may be provided.
  • the head moving mechanism 212 causes the head 211 to fall within the orbit Z of the soil case 10, that is, the collision position where it collides with the soil case 10 (see FIG. 16) and the retracted position retracted from the collision position (two-dot chain line portion in FIG. It becomes movable between).
  • one end of the spring 213 is connected to the end of the shaft 212S opposite to the side of the revolving shaft K, and the other end of the spring 213 is connected to the spring attachment protrusion 212T.
  • the head 211 is biased by the spring 213 toward the collision position.
  • the soil case 10 revolves around the revolution axis K and rotates around its own rotation axis J by the rotating device 120. Since the spring 213 biases the head 211 toward the collision position, the head 211 is located at the collision position (see FIG. 16).
  • the head 211 collides with the soil case 10 (see FIG. 15).
  • the soil attached to the inner wall of the soil case 10 can be dropped.
  • the head 211 since the head 211 is biased toward the collision position in contact with the soil case 10, the collision position again (see FIG. 16) even after collision with the soil case 10 (see FIG. 15). Return to For this reason, the head 211 can reliably perform the collision with the next soil case 10.
  • the number of knocking mechanisms 210 provided in the soil sifter 1 may be one or more, but the rotation period of the soil case 10 around the rotation axis J is different from the rotation period of the soil case 10 around the rotation axis K Is preferred. Thereby, even if the number which provides the knock mechanism 210 in the soil sieve 1 is one, the head 211 can contact uniformly around the rotation axis J of the soil case 10. As a result, the soil adhering to the inner wall of the soil case 10 can be reliably dropped.
  • the gear ratio obtained by dividing the number of large teeth by the number of small teeth is not an integer. Thereby, the head 211 can contact more uniformly around the rotation axis J of the soil case 10.
  • the sun spur gear 123 and the planetary spur gear 126 are directly meshed with each other, the sun spur gear 123 and the planetary spur gear 126 are formed by using an intermediate gear which meshes with the sun spur gear 123 and the planetary spur gear 126. It may mesh indirectly via an intermediate gear.
  • the present invention is not limited to this.
  • the rotation case 129 rotates the soil case 10 around the rotation axis J, and the soil case 10 rotates around the rotation axis K
  • a revolution motor 122 and a motor control unit CM that controls the rotation motor 129 and the revolution motor 122 are used.
  • the rotation motor 129 is, for example, attached to the support disk 124 or the like, and is provided rotatably around the revolving shaft K.
  • the motor control unit CM individually controls the rotation motor 129 and the rotation motor 122 so that the rotation period of the soil case 10 around the rotation axis J and the revolution period of the soil case 10 around the rotation axis K are different. . Thereby, when contact with soil case 10 and head 211 is performed multiple times, head 211 can contact equally around rotation axis J of soil case 10.
  • the soil case 10 in the state of rotating around the rotation axis J is revolved around the rotation axis K, but the present invention is not limited to this, and the soil case 10 rotates around the rotation axis J
  • the soil case 10 in the state may be moved on a predetermined circular road.
  • the predetermined annular passage in addition to the circular one as described above, there are an elliptical shape, a polygonal shape such as a rectangular shape, etc., and any of them can be applied.
  • the timing at which the soil case 10 contacts the head 211 is the first contact timing and the timing after the first contact timing, and the timing at which the soil case 10 contacts the head 211 is defined as the second contact timing
  • the first contact portion of the soil case 10 in contact with the head 211 at the first contact timing is different from the second contact portion in contact with the head 211 at the second contact timing.
  • the rotation period of the soil case 10 around the rotation axis J may be different from the cyclic movement period of the soil case 10 in the ring path, and as a specific means thereof, the gear ratio of the gear as described above Adjustment or individual control by a motor can be used. Thereby, the head 211 can contact uniformly around the rotation axis J of the soil case 10.
  • Knock rotation mechanism 250 attaches knock mechanism 210 to housing 29 so as to be rotatable around revolution axis K, and is provided on rail 251 provided on the upper surface of housing 29 and on the lower surface of platform 212A. It includes rollers 252A to 252C provided to sandwich the rail 251, and a roller motor 253 for driving any one of the rollers 252A to 252C.
  • the rails 251 are circular and extend along the revolving track Z of the soil case 10. Further, the center of the rail 251 overlaps the revolution axis K.
  • the roller 252A can roll on one rolling surface of the rail 251, and the rollers 252B to 252C can roll on the other rolling surface of the rail 251.
  • the motor control unit CM individually controls the roller motor 253 together with the autorotation motor 129 and the revolution motor 122 (see FIG. 17). When the motor control unit CM controls the roller motor 253, the knock mechanism 210 rotates around the revolution axis K.
  • the motor control unit CM is configured such that the first contact portion of the soil case 10 in contact with the head 211 at the first contact timing is different from the second contact portion in contact with the head 211 at the second contact timing.
  • the roller motor 253 is individually controlled together with the rotation motor 129 and the revolution motor 122 (see FIG. 17). Thereby, the head 211 can contact uniformly around the rotation axis J of the soil case 10.
  • the revolving direction of the knock mechanism 210 is opposite to the revolving direction of the soil case 10.
  • the portion of the soil case 10 in contact with the head 211 is preferably an outer cover 60 or a soil recovery container 50 as shown in FIG.
  • the soil case 10 or the soil recovery container 50 is a portion of the soil case 10 in contact with the head 211 as shown in FIG. Is preferred.
  • the powder sieve of the present invention is not limited to the soil, and any powder can be used. Examples of powder that can be applied to the powder sieve include soil and abrasive grains. Further, the powder stored in the powder storage container may be one obtained by crushing a sample of a lump in the powder storage container, or may be a powder sample itself. That is, the powder container, in particular, the soil container space 30K (see FIG. 3) is provided with a powdering tool (for example, a grinding tool) for obtaining a powder sample from a mass sample, and a stirring tool for stirring the powder. It may be done. The powdering tool and the stirring tool include, for example, a stirring projection 30NT, a second stirring projection 30UT (see FIG. 3), or a stirring member 80 (see FIG. 8).
  • the powder sieve according to the present invention is not limited to the above-described embodiment, and it goes without saying that various modifications can be made without departing from the scope of the present invention.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

Le conteneur à terre (10) selon l'invention est agencé de façon à pouvoir tourner librement tout en contenant de la terre, et sert à tamiser la terre contenue sous l'action de cette rotation. Le conteneur à terre (10) est pourvu d'un récipient contenant la terre (30) destiné à contenir de la terre, d'un récipient de collecte de terre (50) destiné à collecter la terre tamisée, et d'un tamis à terre (40) qui se trouve entre le récipient contenant la terre (30) et le récipient de collecte de terre (50). Le tamis à terre (40) comporte des trous débouchants (40AX) communiquant par les espaces intérieurs du récipient contenant la terre (30) et du récipient de collecte de terre (50) à la fois. Une paroi intérieure proche d'une extrémité ouverte du récipient contenant la terre (30) s'élargit en direction du récipient de collecte de terre (50). Le degré d'un angle formé par une paroi intérieure à proximité d'une extrémité ouverte d'un espace contenant la terre (30K) et le tamis à terre (40) est inférieur à 90°.
PCT/JP2012/080474 2012-09-18 2012-11-26 Conteneur à poudre et tamis à poudre WO2014045463A1 (fr)

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JP2012-204078 2012-09-18
JP2012204078A JP2015221394A (ja) 2012-09-18 2012-09-18 土壌ケース及び土壌ふるい器

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Publication number Priority date Publication date Assignee Title
JP2019138719A (ja) * 2018-02-08 2019-08-22 大起理化工業株式会社 土壌ケース
JP2019214047A (ja) * 2019-09-11 2019-12-19 大起理化工業株式会社 土壌ケース

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Publication number Priority date Publication date Assignee Title
CN107064412B (zh) * 2017-03-14 2024-02-13 山东金普分析仪器有限公司 一种水质检测用的氧化装置

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Publication number Priority date Publication date Assignee Title
JP2001205196A (ja) * 2000-01-24 2001-07-31 Saisee:Kk ロータリーシフター装置
WO2006013926A1 (fr) * 2004-08-05 2006-02-09 Universal Bio Research Co., Ltd. Récipient de réaction, dispositif d’introduction de liquide pour récipient de réaction, dispositif d’introduction de liquide et de mesure de réaction, et dispositif d’introduction de liquide
JP2012042403A (ja) * 2010-08-23 2012-03-01 Daiki Rika Kogyo Kk 土壌ふるい器

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Publication number Priority date Publication date Assignee Title
JP2001205196A (ja) * 2000-01-24 2001-07-31 Saisee:Kk ロータリーシフター装置
WO2006013926A1 (fr) * 2004-08-05 2006-02-09 Universal Bio Research Co., Ltd. Récipient de réaction, dispositif d’introduction de liquide pour récipient de réaction, dispositif d’introduction de liquide et de mesure de réaction, et dispositif d’introduction de liquide
JP2012042403A (ja) * 2010-08-23 2012-03-01 Daiki Rika Kogyo Kk 土壌ふるい器

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019138719A (ja) * 2018-02-08 2019-08-22 大起理化工業株式会社 土壌ケース
JP2019214047A (ja) * 2019-09-11 2019-12-19 大起理化工業株式会社 土壌ケース
JP7005853B2 (ja) 2019-09-11 2022-01-24 大起理化工業株式会社 土壌ケース

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