Sample collection instrument and sample collection method

Abstract

To provide a sample collection instrument and a sample collection method which facilitate collection of a sample from a building material with a simple configuration.SOLUTION: A sample collection instrument 1 which collects a sample for inspection of whether to include asbestos from a building material includes: a storage part 2 which has a bottomed shape with an opening and in which a storage space 100 for storing the sample is formed; and edges 23 provided at the opening part. The edges 23 press-cut a sample collection portion of the building material. The storage part 2 stores the sample which has been peeled from the building material after the press-cutting in the storage space 100.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a sampling device and a sampling method used when taking samples from building materials to test whether or not the building materials used in a building contain asbestos. [Background technology]

[0002] Conventionally, to test for the presence of asbestos, square samples of about 10 cm on each side are taken from building materials using a cutter and scraper, etc. However, this method requires a considerable amount of work, so various techniques have been proposed to make it easier to take samples.

[0003] For example, Patent Document 1 discloses a sampling device that includes a cover part that contacts the surface of a building material of an existing building to form a closed space for sampling inside, a suction and exhaust part that sucks in gas from the closed space for sampling, and an electric drilling part that forms holes in the building material from the surface side inside the cover part, crushes the building material, and extracts a test sample into the closed space for sampling. With this sampling device, samples can be easily collected by the drilling part, and the cover part and the suction and exhaust part prevent asbestos from scattering. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent Publication No. 2021-96156 Summary of the Invention [Problem to be solved by the invention]

[0005] In the case of the conventional sampling device described above, the work is shortened because an electrically operated drilling part is used, but there is a risk of damage to building materials, etc. In addition to the drilling part, a cover part and a suction and exhaust part are provided, which leads to an increase in the size of the device, and there is also a problem that handling becomes complicated.

[0006] The present invention has been made in view of the above circumstances, and its main object is to provide a sample collecting device and a sample collecting method that can solve the above problems. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems, one embodiment of the sampling tool of the present invention is a sampling tool for sampling a building material to test for the presence or absence of asbestos, the sampling tool comprising a bottomed container having an opening and forming an internal container space for storing the sample, and a blade provided in the opening, the blade pushing through a portion of the building material where the sample is to be sampled, and the container storing the sample peeled off from the building material after the pushing-through in the container space.

[0008] In this embodiment, the blade may be provided around the entire periphery of the opening.

[0009] In addition, in the above-mentioned aspect, the blade may further include a striking part that is attached to the storage part and is struck by a hammer, and when the tip of the blade is in contact with a sample collection point of the building material, the striking part is struck by the hammer, thereby performing the pushing and cutting by the blade.

[0010] In the above aspect, the struck portion may function as a handle of the storage portion that is gripped by an operator's hand.

[0011] In the above aspect, the blade may be detachably connected to the housing and be replaceable.

[0012] In the above aspect, the container may be in the form of a bottomed rectangular cylinder, and one side of the blade may function as a peeling portion that peels the sample from the building material.

[0013] A sample collection method according to one aspect of the present invention is a method for collecting a sample from a building material using a sample collection tool according to the aspect, in which the tip of the blade is brought into contact with a sample collection point on the building material, the blade is used to push through the sample collection point, and the pushed-through sample collection point is peeled off from the building material as a sample, and the peeled sample is stored in the storage space.

[0014] In this embodiment, a plate having a size corresponding to the sample collection mark and clearly indicating information regarding the sample collection location may be attached. Effect of the Invention

[0015] According to the sampling device and the sampling method of the present invention, it is possible to easily collect samples from building materials. [Brief description of the drawings]

[0016] [Figure 1] FIG. 2 is a perspective view showing the configuration of a sample collecting device according to an embodiment. [Diagram 2] FIG. 2 is a front view showing the configuration of a sample collecting device according to an embodiment. [Diagram 3] FIG. 2 is a plan view showing the configuration of a sample collecting device according to an embodiment. [Figure 4] FIG. 2 is a bottom view showing the configuration of the sample collecting device according to the embodiment. [Diagram 5] FIG. 1 is a front view showing the configuration of the sample collection device before the blade is installed. [Figure 6A] FIG. [Figure 6B] FIG. [Figure 7A] 1A to 1C are diagrams showing a method of using a sample collecting device according to an embodiment. [Figure 7B] 1A to 1C are diagrams showing a method of using a sample collecting device according to an embodiment. [Figure 7C] 1A to 1C are diagrams showing a method of using a sample collecting device according to an embodiment. [Figure 7D]1A to 1C are diagrams showing a method of using a sample collecting device according to an embodiment. [Figure 8] FIG. 13 is a diagram showing an example of a plate to be attached to a sample collection mark. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] The sampling tool according to the present embodiment includes a container having an opening and a blade provided at the opening, and collects a sample by storing the sample cut by the blade and peeled off from the building material in the container. Preferred embodiments of the present invention will now be described with reference to the drawings.

[0018] (Configuration of sample collection equipment) 1 to 4 are a perspective view, a front view, a plan view, and a bottom view, respectively, showing the configuration of the sample collecting device according to the present embodiment. Also, Fig. 5 is a plan view showing the configuration of the sample collecting device before the blade is installed, and Figs. 6A and 6B are a front view and a side view, respectively, showing the configuration of the blade.

[0019] All of the components of the sample collection device described below are made of metal, but some or all of the components may be made of other materials, such as resin.

[0020] 1 and 2, the sample collection tool 1 includes a storage section 2 and a grip section 3 connected to the lower part of the storage section 2. The grip section 3 is composed of a cylindrical handle section 31, and is held by an operator when collecting a sample with the sample collection tool 1. As will be described later, the grip section 3 also functions as a part to be struck by a hammer.

[0021] The storage unit 2 is in the shape of a rectangular cylinder with an open top and a closed bottom, and has a storage space 100 therein for storing samples. As will be described later, the opening of the storage unit 2 is formed by blade portions 231 of four blades 23 (see FIGS. 6A and 6B ). The sample cut by the blade portions 231 and peeled off from the building material is stored in the storage space 100.

[0022] The bottom wall 21 of the storage section 2 is formed of a square plate-like body in a plan view. A side wall of the storage section 2 is erected slightly inside the peripheral edge of the upper surface of the bottom wall 21. In addition, the upper end of the handle section 31 is connected to the center of the lower surface of the bottom wall 21 by welding or the like.

[0023] The side wall of the storage section 2 is composed of an inner wall section 22 and four plate-like blades 23 provided on the outer side of the inner wall section 22. The inner wall section 22 has a rectangular cylindrical shape that is a square in plan view, and as described above, is erected slightly inside the peripheral edge of the upper surface of the bottom wall 21. Two through holes 22a, 22a spaced a predetermined distance apart in the lateral direction are formed on each side of the inner wall section 22 (see FIG. 5).

[0024] The blade 23, which constitutes the side wall of the storage section 2 together with the inner wall section 22, is a plate-like member having a rectangular shape when viewed from the front, as shown in Figs. 6A and 6B, and is composed of a blade section 231 and a plate-like section 232 located below the blade section 231. The blade section 231 is inclined on one side when viewed from the side, and is formed so as to taper toward the tip. This tapered tip becomes the cutting edge of the blade section 231. The plate-like section 232 is a plate-like member having a substantially uniform thickness. The blade section 231 and the plate-like section 232 are integrally formed. The reference numeral 233 indicates the ridge between the blade section 231 and the plate-like section 232.

[0025] Each of the blades 23 is disposed so that the inclined surface of the blade portion 231 faces the inside of the storage unit 2, i.e., the storage space 100. This makes it possible to easily peel the sample from the building material and smoothly guide the peeled sample to the storage space 100.

[0026] The plate-shaped portion 232 of the blade 23 and the inner wall portion 22 have the same height. Therefore, the blade 23 protrudes upward from the upper end surface of the inner wall portion 22 by the height of the blade portion 231. Therefore, the opening of the storage portion 2 is formed by the blade portions 231 of the four blades 23. As a result, the blade portions 231 of the blades 23 are provided around the entire circumference of the opening of the storage portion 2.

[0027] As described above, since the inclined surface of the blade portion 231 faces the inside of the storage unit 2, there are slight gaps between the adjacent blade portions 231, 231 at a 90 degree angle. Due to these gaps, the opening of the storage unit 2 is interrupted in four places, but the opening may be continuous without such gaps.

[0028] Since each blade 23 has the same height, the cutting edge of the blade portion 231 of each blade 23 is on the same plane. Therefore, as described below, when taking a sample from a building material, the entire cutting edge of the blade portion 231 can be simultaneously brought into contact with the exterior wall surface of the building and pressed through. This has the advantage of making it easy to take samples of uniform size.

[0029] Two through holes 23a, 23a are formed in the plate-shaped portion 232 of the blade 23, separated laterally by approximately the same distance as the distance between the two through holes 22a, 22a formed in the inner wall portion 22. Female threads are formed on the inner peripheral surfaces of these through holes 22a, 22a and 23a, 23a, and with the through holes 22a, 22a and 23a, 23a aligned, male threads 24, 24 are screwed into the female threads, whereby the four blades 23 are screwed to the outside of each side surface of the inner wall portion 22.

[0030] In this way, the blade 23 is detachably connected to the inner wall portion 22 by screwing. Therefore, when the blade portion 231 of the blade 23 is damaged, it can be easily replaced with a new blade 23. In the case of this embodiment, the four blades 23 are individually attached to the inner wall portion 22, so that only one of the four blades 23 can be easily replaced. This makes it possible to use the sample collecting device 1 for a long period of time.

[0031] When the male thread 24 is screwed into the female thread as described above, the inner surface of the side surface of the inner wall portion 22 and the lower end surface of the male thread 24 become flush with each other. This makes it possible to prevent a part of the sample accommodated in the accommodation space 100 of the accommodation portion 2 from being caught on the lower end of the male thread 24 or being embedded in the through hole 22a of the inner wall portion 22.

[0032] As described above, the inner wall portion 22 and the plate-shaped portion 232 of the blade 23 have the same height. Therefore, when the inner wall portion 22 and the blade 23 are erected on the upper surface of the bottom wall 21, the upper end of the inner wall portion 22 does not reach the blade portion 231 of the blade 23. Therefore, the inner wall portion 22 and the blade 23 can be screwed together without substantially creating a gap between the inner wall portion 22 and the blade 23. Therefore, it is possible to prevent a part of the sample peeled off from the building material by using the blade 23 from being pinched between the inner wall portion 22 and the blade 23 when the part is introduced into the storage space 100.

[0033] (How to use the sample collection tool) Next, a method of using the sample collecting device 1 configured as above will be described. 7A to 7D are diagrams showing a method of using the sample collection tool 1. First, an operator selects a sample collection location on the outer wall surface of the building 200 to be surveyed, and wets the area of ​​the sample collection location by spraying water with a spray bottle or the like. After that, the operator holds the gripping portion 3 of the sample collection tool 1, and as shown in FIG. 7A, brings the blade tips of the blades 231 on the four sides of the storage portion 2 into contact with the sample collection location on the outer wall surface of the building 200. With the blade tips of the blades 231 thus in contact with the sample collection location, the operator strikes the lower end of the gripping portion 3 with a hammer 4.

[0034] The impact of the hammer 4 causes the sample collection tool 1 to move toward the building 200. As a result, the cutting edges of the blades 231 on the four sides of the storage section 2 are pushed into the exterior wall, and the sample collection area is pressed into a square shape (see FIG. 7B). At this time, it is desirable to cut all layers of the architectural finishing coating material consisting of multiple layers by reaching the cutting edges of the blades 231 to the surface of the base such as concrete.

[0035] Next, the worker tilts the gripper 3 diagonally downward and forward (toward the building 200) while keeping the cutting edge of the lower blade 231 of the four blades 231 on the four sides of the storage unit 2 in contact with the outer wall surface. As a result, as shown in Fig. 7C, the blades 231 on the other three sides of the storage unit 2 are separated from the outer wall surface. Note that reference numeral 201 denotes a sample cut by the blades 231 on the four sides.

[0036] Next, the operator operates the gripper 3 to move the storage unit 2 upward while pressing the tip of the lower blade 231 that is in contact with the exterior wall surface against the building 200. At this time, the lower blade 231 functions as a scraper (peeling unit), and the sample 201 is peeled off successively from the bottom side (see FIG. 7D).

[0037] The sample 201 peeled off from the outer wall surface as described above is stored in the storage space 100 of the storage unit 2. This allows the sample 201 to be collected reliably and prevents a part of the sample 201 from scattering.

[0038] The sample 201 contained within the storage space 100 of the storage unit 2 is taken out and collected through an opening formed by the blades 231 on the four sides of the storage unit 2. Thereafter, the sample 201 is inspected for the presence or absence of asbestos.

[0039] When the sample 201 is collected from the outer wall surface of the building 200 in the above manner, a collection mark of the same size as the sample 201 is formed on the outer wall surface. Such a collection mark is coated with a shatterproof agent, and then repaired with a sealant as necessary. At this time, a plate indicating various information regarding the sample collection location may be attached. FIG. 8 shows an example of such a plate.

[0040] 8, the plate 5 indicates that the location was surveyed for asbestos content, and further indicates the name of the construction work, the identifier of the sampling location, the sampling date, and the name of the client. Of course, this is just one example, and other information such as the name of the contractor who conducted the survey may also be indicated on the plate 5.

[0041] As described above, by attaching the plate 5 to the collection mark of the sample 201, it becomes easier to compare the survey report and the collection location at the site, and it becomes possible to prevent the same location from being surveyed. In the case of this embodiment, since the sample 201 is cut by the blades 231 fixed on the four sides of the storage unit 2, the collected sample 201 and its collection mark are substantially uniform in size. Therefore, it is possible to use a plate 5 of a fixed size according to the collection mark, and it is possible to avoid the trouble of adjusting the size of the plate 5 for each sample collection location.

[0042] (Other embodiments) In the above embodiment, the storage section 2 is a square cylinder with a bottom, but it may have another shape as long as it is a bottomed shape with a part open. For example, the storage section 2 may be a truncated pyramid with a bottom, a cylindrical shape with a bottom, or a truncated cone shape with a bottom.

[0043] In addition, in the above embodiment, the blade portion 231 is provided around the entire circumference of the opening of the storage portion 2, but this is not limited to this. If the sample collection location can be pushed through, the blade portion 231 may be provided only on a part of the opening.

[0044] In the above embodiment, the sample accommodated in the accommodation space 100 of the accommodation unit 2 is taken out from the opening of the accommodation unit 2 formed by the blade portion 231, but this is not limited to this. For example, an openable and closable opening may be provided in the bottom wall 21 of the accommodation unit 2, and the sample accommodated in the accommodation space 100 may be taken out through the opening.

[0045] Furthermore, in the case of the above embodiment, since it is difficult to visually check the inside of the storage space 100 of the storage unit 2 from the outside when taking a sample, it may be difficult to confirm that the sample has been stored in the storage space 100. To solve this problem, a transparent or semi-transparent window may be formed on the side wall of the storage unit 2. In this case, since the operator can visually check the inside of the storage space 100 through this window when taking a sample, the storage status of the sample can be easily confirmed.

[0046] In the above embodiment, the outermost surface of the side wall of the storage section 2 is the blade 23, but this is not limited thereto, and for example, a reinforcing plate for reinforcing the blade 23 may be provided on the outermost surface. In this case, for example, four reinforcing plates having a size similar to that of the plate-shaped portion 232 of the blade 23 are provided on the outside of each blade 23. Each reinforcing plate has a through hole similar to the through holes 23a, 23a of the plate-shaped portion 232, and the four blades 23 and the four reinforcing plates are screwed to the outside of each side surface of the inner wall section 22 using the male screw 23. The reinforcing plate provides an advantage in that it is possible to suppress deformation of the blade 23.

[0047] In the above embodiment, the blade 23 is detachably connected to the inner wall portion 22, but it may be fixed to the inner wall portion 22. Also, the side wall of the storage portion 2 may be formed only by the blade 23 without providing the inner wall portion 22. [Explanation of symbols]

[0048] 1. Sampling equipment 2. Storage section 21 Bottom wall 22 Inner wall 22a Through hole 23 Blades 23a Through hole 231 Blade part 232 Plate-shaped part 24 Male thread 3 Gripping part 31 Handle 4. Hammer 5 Plate 100 Storage Space 200 Buildings

Claims

1. A sampling tool for taking samples from building materials to test for the presence or absence of asbestos, a storage section having an opening and a bottom, the storage section forming a storage space for storing the sample therein; A blade provided in the opening; Equipped with The blade pushes through the sample collection portion of the building material, The storage unit stores the sample peeled off from the building material after the pushing and cutting in the storage space. Sample collection equipment.

2. The blade is provided around the entire circumference of the opening.

2. The sample collection device of claim 1.

3. A striking part that is attached to the receiving part and is struck by a hammer. Further equipped with The cutting edge of the blade is in contact with a portion of the building material where the sample is to be collected, and the hammer strikes the struck portion, thereby performing the pushing and cutting by the blade.

3. The sample collection device according to claim 1 or 2.

4. The striking portion functions as a handle of the storage portion to be gripped by an operator's hand.

4. The sample collection device of claim 3.

5. The blade is removably connected to the housing and is replaceable.

3. The sample collection device according to claim 1 or 2.

6. The container has a bottomed rectangular tube shape, and one side of the blade functions as a peeling portion for peeling the sample from the building material.

3. The sample collection device according to claim 1 or 2.

7. A method for collecting a sample from the building material using the sample collecting device according to claim 1, comprising the steps of: A cutting edge of the blade is brought into contact with a portion of the building material where a sample is to be collected, Pushing the blade through the sample collection area; The pressed sample collection portion is peeled off from the building material as a sample; The peeled sample is accommodated in the accommodation space. Sample collection method.

8. A plate having a size corresponding to the sample collection mark and indicating information regarding the sample collection location is attached.

8. The method of claim 7 .

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