WO2018042537A1 - Container - Google Patents

Abstract

Provided is a container (1) equipped with an external fitting container body (2) having a first storage portion (20) and an internal fitting container body (3) having a second storage portion (30), wherein: the volume of a storage portion (10) comprising the first storage portion (20) and the second storage portion (30) is increased/decreased by inserting the internal fitting container body (3) into the external fitting container body (2) and sliding the internal fitting container body (3) with respect to the external fitting container body (2); the external fitting container body (2) and the internal fitting container body (3) are both restricted from rotating relative to each other about respective axes of rotation (CL1), (CL2) as the sliding directions; and the internal fitting container body (3) is provided with a pressing seal portion (31) that effects sealing by pressing against the inner surface (211) of the first storage portion (20) of the external fitting container body (2), irrespective of the slide position.

Description

container

The present invention relates to a container, particularly a container suitable for sample analysis.

As a container for an analysis sample, for example, there is a container called a vial having a general size and volume corresponding to a gas chromatograph autosampler (see, for example, Patent Document 1 below). A sample handled in such a container may be pretreated before being placed in the container and set in the autosampler. For example, the sample is concentrated by a centrifugal concentrator.

Recently, with regard to the sample handled in the above-mentioned vial, for example, the amount of the sample before concentration by the centrifugal concentrator is large. The same applies to other pre-processing.
Such a large sample cannot fit into a vial of constant size and volume. Therefore, since a large amount of sample is first subjected to pretreatment such as concentration by a centrifugal concentrator, it is pretreated in a larger volume pretreatment container separate from the vial. After that, the pretreated sample is transferred from the pretreatment container to the vial, and the vial is set in the autosampler.

JP, 2011-185737, A

However, there is a concern that the sample handled in such a work order may cause contamination and loss when it is transferred from the pretreatment container to the vial. Further, such a problem may occur in a container other than the sample analysis container and the centrifugal concentration container.

The object of the present invention is to provide a container that can easily cope with a large change in the volume of the contained items.

The present invention is a container comprising an extrapolation container main body having a first accommodation part and an insertion container main body having a second accommodation part, and the insertion container main body is inserted into the extrapolation container main body, By sliding the insertion container main body relative to the extrapolation container main body, the volume of the storage part composed of the first storage part and the second storage part increases or decreases, and the extrapolation container main body and the insertion container main body change the sliding direction. Relative rotation as a rotation axis is restricted, and the inner container body includes a pressure seal portion that presses and seals the inner surface of the first housing portion of the extrapolation container body regardless of the slide position. About.

Further, it is preferable that the extrapolation container body is formed of a material that is more easily deformed than the insertion container body.

Further, one of the extrapolation container body and the insertion container body has a convex part for realizing sliding and restricting relative rotation, and the other of the extrapolation container body or the insertion container body is convex. A recessed portion in which the portion is disposed, and has a recessed portion for realizing sliding and restricting relative rotation, and the protruding portion and the recessed portion are relative to the extrapolation container body and the insertion container body at a predetermined angle. It is preferable to allow general rotation.

In addition, it is preferable that the extrapolation container body and the insertion container body can be held at an arbitrary slide position by pressing the pressing seal portion.

In addition, when the outer container body or the inner container body in which the sample is stored is referred to as the lower container body and the other container body is referred to as the upper container body, the lower container body is more sample than the upper container body. It is preferable that the material is formed from a material having high resistance to.

Also, the extrapolation container main body and the extrapolation container main body after being concentrated by centrifugal concentrating with the centrifugal concentrator for concentrating the sample accommodated in the accommodating portion in a state where the extrapolation container main body is slid and extended. In addition, it is preferably used for sample analysis in which the centrifugally concentrated sample is analyzed by a sample analyzer while the insertion container body is slid and contracted.

According to the present invention, it is possible to provide a container that can easily cope with a large change in the volume of the accommodated item.

It is a perspective view shown in the state where the container concerning one embodiment of the present invention was shrunk. It is a vertical front view shown in the state where the container concerning this embodiment was shrunk. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. It is a longitudinal view seen in the state where the container concerning this embodiment was extended. It is a longitudinal view which shows the extrapolation container main body which comprises the container which concerns on this embodiment. It is a top view which shows the extrapolation container main body which comprises the container which concerns on this embodiment. It is a side view which shows the insertion container main body which comprises the container which concerns on this embodiment. FIG. 8 is a cross-sectional view taken along line BB in FIG. 7. It is the elements on larger scale which expand and show the C arrow part of FIG.

Hereinafter, a container according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a state in which the container 1 is contracted in the container 1 assembled by inserting the insertion container body 3 into the extrapolation container body 2. FIG. 2 is a partially longitudinal front view showing the container 1 of FIG. 3 is a cross-sectional view showing the container 1 of FIG. 1 cut along the line AA of FIG. FIG. 4 is a longitudinal sectional view showing the container 1 of FIG. 1 in an extended state. FIG. 5 is a longitudinal sectional view showing the extrapolation container main body 2 constituting the container 1 of FIG. 1 as a single unit. FIG. 6 is a plan view of the extrapolation container body 2 shown in FIG. FIG. 7 is a side view showing the insertion container main body 3 constituting the container 1 of FIG. 1 as a single unit. FIG. 8 is a cross-sectional view taken along line BB in FIG. FIG. 9 is a partially enlarged view showing the portion indicated by the arrow C in FIG. 4 in an enlarged manner.

As shown in FIGS. 1 to 8, the container 1 according to the present embodiment includes an extrapolation container main body 2 having a first accommodation part 20, an insertion container main body 3 having a second accommodation part 30, a lid ( (Not shown). The first accommodating portion 20 and the second accommodating portion 30 constitute the entire accommodating portion 10 of the container 1.
First, the extrapolation container main body 2 will be described with reference to FIG. 5, FIG. 6, FIG.

[Extrapolation container body 2]
The extrapolation container main body 2 is a lower container main body that constitutes the lower half of the container 1, and includes a first storage portion 20 (described later), a peripheral wall 21, a bottom wall 22, and a sample reservoir 23. The peripheral wall 21 has a cylindrical shape and extends from the upper end to the lower end of the extrapolation container main body 2. The bottom wall 22 is connected to a predetermined height H1 and a high portion (hereinafter also referred to as “continuous portion 215”) from the lower end of the peripheral wall 21. An inner peripheral surface (inner surface) 211 in a range (height) H5 from the upper end of the peripheral wall 21 to the height H1 of the continuous portion 215 is a cylindrical surface except for a convex portion 212 and an annular convex portion 213 described later.

The bottom wall 22 is continuous with the peripheral wall 21 at the continuous portion 215. The bottom wall 22 extends downward gently from the continuous portion 215 toward the central axis CL <b> 1 of the peripheral wall 21, and continues to the upper end of the sample reservoir 23. The sample reservoir 23 is a small concave space arranged concentrically with the peripheral wall 21. In the sample reservoir 23, the vertical wall 231 extends downward from the upper end and reaches the bottom 232. The inner space of the bottom portion 232 has an inverted conical shape and has a deepest portion 233 at a position that coincides with the central axis CL1 of the peripheral wall 21. The lower end of the bottom portion 232 is located at the same height as the lower end of the peripheral wall 21.

As shown in FIG. 6, the upper end portion of the peripheral wall 21 is provided with four convex portions 212 protruding inward in the radial direction from the inner peripheral surface 211 in plan view. The four convex portions 212 are arranged at an interval of approximately 90 ° from each other along the circumferential direction of the peripheral wall 21. Each convex part 212 is substantially the same in size and shape.

As shown in FIG. 9, each convex portion 212 includes a first inclined surface 2121 extending obliquely downward from the upper end of the inner peripheral surface 211, a predetermined height H2 from the upper end of the inner peripheral surface 211, and an obliquely upward from a lower portion. A second inclined surface 2122 extending to the upper surface, a protruding surface 2123 connecting the lower end edge of the first inclined surface 2121 and the upper end edge of the second inclined surface 2122, a first side surface 2124 (see FIG. 5), 2 side surfaces 2125 (see FIG. 5).

In the longitudinal sectional view, the protruding surface 2123 of each convex portion 212 is disposed substantially parallel to the inner peripheral surface 211. The protruding amount of each convex portion 212, that is, the radial distance P1 between the inner peripheral surface 211 and the protruding surface 2123 is the same.

Compared with the first inclined surface 2121, the second inclined surface 2122 has a gentler gradient with respect to the inner peripheral surface 211. As shown in FIG. 5, the first side surface 2124 and the second side surface 2125 are slightly inclined with respect to the vertical surface so that the distance between the first side surface 2124 and the second side surface 2125 increases.

An annular convex portion protruding inward in the radial direction from the inner peripheral surface 211 through a region of the inner peripheral surface 211 to a predetermined height H3 (> H2) and a lower portion from the upper end of each convex portion 212 of the peripheral wall 21 213 is provided. The annular convex portion 213 is provided along the circumferential direction of the peripheral wall 21 without a 360 ° break (on the entire circumference).

As shown in FIG. 9, the annular convex portion 213 has an annular protruding edge 2131 that protrudes most inward in the radial direction from the inner peripheral surface 211. The curved surface on the upper side of the protruding edge 2131 is bent and connected to the inner peripheral surface 211. The inclined surface on the lower side of the protruding edge 2131 is smoothly connected to the inner peripheral surface 211.

The protrusion amount P2 of the annular protrusion 213 (that is, the radial distance P2 between the inner peripheral surface 211 and the protrusion edge 2131) is smaller than the protrusion amount P1 of each protrusion 212 (P2 <P1).

As shown in FIG. 4, the space occupied by the insertion container body 3 in the state where the container 1 is extended is excluded from the space surrounded by the peripheral wall 21, the bottom wall 22 and the sample reservoir 23 from the upper end of the extrapolation container body 2. The space constitutes the first housing part 20. The first accommodating part 20 has an inner diameter R1 and a central axis CL1.

Next, the insertion container body 3 will be described with reference to FIGS. 7, 8, 9 and the like.
[Insertion container body 3]
The insertion container main body 3 has the 2nd accommodating part 30 so that it may mention later.
The insertion container body 3 has a substantially cylindrical shape penetrating from the upper end to the lower end. The insertion container body 3 has a center axis CL2. As will be described later, the insertion container body 3 has a state in which the container 1 is contracted (see FIG. 2) and a state in which the container 1 is extended (see FIG. 4) in the state inserted in the extrapolation container body 2. Configured to slide between.

The insertion container main body 3 includes a pressing seal portion 31, a rotation restricting portion 32, and a mouth portion 33 in order from the bottom to the top. When the insertion container main body 3 is once inserted into the extrapolation container main body 2 by press-fitting, the pressure seal portion 31 is always located inside the insertion container main body 3 during use. The rotation restricting portion 32 is located inside the insertion container main body 3 when the container 1 is contracted during use. The rotation restricting portion 32 is located outside the insertion container main body 3 when the container 1 is extended during use. The mouth portion 33 is always located outside the insertion container body 3 (regardless of the expansion and contraction of the container 1).

The pressure seal part 31 occupies from the lower end of the insertion container body 3 to a position at a predetermined height. The pressing seal portion 31 has a cylindrical shape and includes an outer peripheral reference surface 311, a first annular seal portion 312, a second annular seal portion 313, and an inner peripheral surface 314. As shown in FIG. 9, the diameter R2 of the outer peripheral reference surface 311 is smaller than the inner diameter R1 of the first housing portion 20 (R2 <R1). As shown in FIGS. 8 and 9, the inner peripheral surface 314 has a diameter R3.

The protrusion amount P2 of the annular convex portion 213 in the extrapolation container body 2 is half of the difference (R1−R2) between the inner diameter R1 of the first accommodating portion 20 and the diameter R2 of the outer peripheral reference surface 311 of the pressure seal portion 31. be equivalent to. In other words, when the diameter R2 of the outer peripheral reference surface 311 of the pressure seal portion 31 is added twice the protrusion amount P2 of the annular convex portion 213, it matches the inner diameter R1 of the first accommodating portion 20 (R1 = R2 + 2 × P2). Therefore, when the outer peripheral reference surface 311 of the pressure seal portion 31 in the insertion container body 3 is inserted at the position of the annular convex portion 213 of the first housing part 20 in the extrapolation container body 2, the center of the extrapolation container body 2 The axis line CL1 and the central axis line CL2 of the insertion container main body 3 can be aligned with each other.

The first annular seal portion 312 protrudes radially outward from the outer peripheral reference surface 311 at the lower end of the pressure seal portion 31.
As shown in FIG. 9, the first annular seal portion 312 has an annular seal edge 3121 that protrudes most outward in the radial direction from the outer peripheral reference surface 311. The curved surface on the upper side of the seal edge 3121 is smoothly connected to the outer peripheral reference surface 311. The curved surface on the lower side of the seal edge portion 3121 continues to the lower surface of the press seal portion 31.

The second annular seal portion 313 protrudes radially outward from the outer peripheral reference surface 311 via the region of the outer peripheral reference surface 311 above the first annular seal portion 312.
As shown in FIG. 9, the second annular seal portion 313 has an annular seal edge portion 3131 that protrudes most outward in the radial direction from the outer peripheral reference surface 311, similarly to the first annular seal portion 312. The curved surface on the upper side of the seal edge 3131 and the curved surface on the lower side of the seal edge 3131 are smoothly connected to the outer peripheral reference surface 311.

The outer diameter R4 of the first annular seal portion 312 and the second annular seal portion 313 is larger than the inner diameter R1 of the first accommodating portion 20 (R4> R1). In the pressure seal portion 31, the protrusion amount P <b> 3 of the first annular seal portion 312 (that is, the radial distance P <b> 3 between the outer peripheral reference surface 311 and the seal edge portion 3121) and the protrusion of the second annular seal portion 313. The amount P3 (that is, the radial distance P3 between the outer peripheral reference surface 311 and the seal edge 3131) is the same.

The protrusion amount P3 of the first annular seal portion 312 and the second annular seal portion 313 is larger than the protrusion amount P2 of the annular convex portion 213 in the extrapolation container body 2 (P3> P2). Therefore, it is a case where the 1st annular seal part 312 and the 2nd annular seal part 313 in insertion container body 3 are inserted in arbitrary height in the 1st storage part 20 of extrapolation container body 2, and The annular seal edge 3121 of the first annular seal portion 312 and the annular seal edge portion 3131 of the second annular seal portion 313 are arranged so that the inner peripheral surface 211 of the first accommodating portion 20 faces radially outward. It can be pressed and sealed.

7 and 8, the rotation restricting portion 32 is disposed adjacent to and above the pressure seal portion 31. The rotation restricting portion 32 has a cylindrical shape and includes an outer peripheral surface 321, four concave portions 322, an upper flange 323, and an inner peripheral surface 324. The diameter R2 of the outer circumferential surface 321 is the same as the diameter R2 of the outer circumferential reference surface 311 of the pressing seal portion 31. The diameter R3 of the inner peripheral surface 324 is the same as the diameter R3 of the inner peripheral surface 314 of the pressing seal portion 31. A space surrounded by the inner peripheral surface 314 of the pressing seal portion 31 and the inner peripheral surface 324 of the rotation restricting portion 32 constitutes the second accommodating portion 30. The second accommodating portion 30 has an inner diameter R3 and a central axis CL2.

The four recesses 322 are recesses scraped from the outer peripheral surface 321 inward in the radial direction from the upper end to the lower end of the outer peripheral surface 321. Each recess 322 is provided over a range of approximately 90 ° along the circumferential direction of the rotation restricting portion 32. The four concave portions 322 are arranged at an interval of approximately 90 ° from each other along the circumferential direction of the rotation restricting portion 32. Each recess 322 is substantially the same in size and shape.

As shown in FIG. 7, each recess 322 includes an inner side surface 3221 arranged in parallel to the outer peripheral surface 321 on the radially inner side of the outer peripheral surface 321, and an upper surface 3222 continuous from the lower surface of the upper flange 323 to the inner side thereof. It has a lower surface 3223 serving as an upper surface of the pressure seal portion 31, a first side surface 3224 (see FIG. 8), and a second side surface 3225 (see FIG. 8).

In other words, the rotation restricting portion 32 is formed by removing the four concave portions 322 on the outer peripheral surface 321, and as a result, the remaining outer peripheral surface 321 extending in the vertical direction and the first side surface 3224 of the concave portion 322 adjacent to the right side thereof. And four rib-shaped protrusions constituted by the second side surface 3225 of another concave portion 322 adjacent to the left side, and spaced apart from each other by approximately 90 ° along the circumferential direction of the rotation restricting portion 32. If placed, you can see it.

The depth D1 of each recess 322 (that is, the radial distance D1 between the outer peripheral surface 321 and the inner side surface 3221) is the same.
The protrusion amount P1 of each protrusion 212 in the extrapolation container body 2 (that is, the radial distance P1 between the inner peripheral surface 211 and the protrusion surface 2123) is the protrusion of the annular protrusion 213 in the extrapolation container body 2. Larger than the amount P2 (that is, the radial distance P2 between the inner peripheral surface 211 and the protruding edge 2131) (P1> P2), and the depth of each concave portion 322 is added to the protruding amount of the annular convex portion 213 (P1 <P2 + D1).

Therefore, when the rotation restricting portion 32 in the insertion container main body 3 is inserted into the extrapolation container main body 2, the four convex portions 212 of the first accommodating portion 20 in the extrapolation container main body 2 are rotated in the insertion container main body 3. Each of the four recessed portions 322 of the restricting portion 32 is accommodated.
As a result, the relative rotation of the extrapolation container body 2 and the insertion container body 3 is such that the four convex portions 212 in the extrapolation container main body 2 are located within the four concave portions 322 in the insertion container main body 3 (that is, In the range of about 90 °).

The inner container body 3 can be moved in and out of the outer container body 2 within the range of the rotation restricting portion 32.
Specifically, as shown in FIG. 2, the insertion container main body 3 can be inserted into the extrapolation container main body 2 until the lower surface of the upper flange 323 is in contact with the upper surface of the extrapolation container main body 2. At this time, the container 1 is in a contracted state.
Therefore, the length H4 (see FIG. 4, the length H4 from the lower surface of the upper flange 323 to the lower end of the pressure seal portion 31) including the pressure seal portion 31 and the rotation restriction portion 32 in the insertion container body 3 is extrapolated. It is shorter than the length H5 (see FIG. 4) from the upper end of the container body 2 to the continuous portion 215 between the peripheral wall 21 and the bottom wall 22.

As shown in FIG. 4, the insertion container body 3 has a boundary 315 (see FIG. 9, that is, the lower surface 3223 of the rotation restriction part 32) between the pressure seal part 31 and the rotation restriction part 32. It can be pulled out of the extrapolation container main body 2 up to a height H6 that contacts the second inclined surface 2122 of the convex portion 212. At this time, the container 1 is in an extended state.
Thus, the insertion container body 3 can slide with respect to the extrapolation container body 2.

As shown in FIGS. 4 and 9, the lower surface 3223 of the rotation restricting portion 32 in the insertion container main body 3 contacts the second inclined surface 2122 of the convex portion 212 in the extrapolation container main body 2 in a state where the container 1 is extended. Because of the contact, the insertion container main body 3 cannot be pulled out from the extrapolation container main body 2 any more. Therefore, the insertion container body 3 is prevented from coming off from the outer container body 2 accurately.

The mouth portion 33 continues above the rotation restricting portion 32. As shown in FIG. 4, the mouth portion 33 has a cylindrical shape and includes an outer peripheral surface 331, a screw thread 332, and an inner peripheral surface 333. The screw thread 332 is for screwing with a corresponding screw thread provided on a lid (not shown). The inner peripheral surface 333 of the mouth portion 33 has a smaller diameter than the inner peripheral surfaces 314 and 324 of the pressing seal portion 31 and the rotation restricting portion 32.

[Cooperation between extrapolation container body 2 and insertion container body 3]
Next, the container 1 according to the present embodiment will be described with reference to all drawings.
That is, the container 1 is assembled by inserting the insertion container body 3 into the outer insertion container body 2 by press fitting. In the assembled container 1, the insertion container main body 3 and the extrapolation container main body 2 can be relatively slid in the axial direction between the contracted state shown in FIG. 2 and the extended state shown in FIG. is there. Therefore, by sliding the insertion container main body 3 and the extrapolation container main body 2 relative to each other, the volume of the accommodating portion 10 of the container 1 is arbitrarily increased or decreased within a design possible range.

Specifically, in the extended state shown in FIG. 4, the volume of the container 10 of the container 1 is a volume obtained by adding the volume of the first container 20 and the volume of the second container 30. On the other hand, in the contracted state shown in FIG. 2, since the volume of the second storage portion 30 occupies the most volume of the first storage portion 20 instead, it is slightly smaller than that approximated to the volume of the second storage portion 30. A large volume is the volume of the accommodating portion 10 of the container 1.
For example, it is possible to store a larger amount of sample in the container 1 in the extended state by using the container 1 that conforms to the standard of the autosampler in the contracted state.

In the container 1, the relative rotation of the extrapolation container main body 2 and the insertion container main body 3 with the sliding directions as the rotation axes CL1 and CL2 is restricted. The convex portion 212 of the extrapolation container body 2 and the concave portion 322 of the insertion container body 3 are provided in order to realize sliding and to restrict relative rotation. More specifically, the four convex portions 212 of the first accommodating portion 20 in the extrapolation container main body 2 are respectively accommodated and arranged in the four concave portions 322 of the rotation restricting portion 32 in the interpolated container main body 3. Therefore, relative rotation of the extrapolation container main body 2 and the insertion container main body 3 is a range in which the four convex portions 212 in the extrapolation container main body 2 are located inside the four concave portions 322 in the interpolation container main body 3 (that is, about 90 ° range).

The extrapolation container body 2 is formed of a material that is more easily deformed than the insertion container body 3. The extrapolation container body 2 is made of PFA (polytetrafluoroethylene) because high resistance to the sample is required. The insertion container body 3 is made of PP (polypropylene) or PE (polyethylene), which is less expensive than PFA because it is difficult to directly contact the sample. PFA is more easily deformed than PP and PE. The extrapolation container body 2 and the insertion container body 3 are formed by injection molding, cutting, or the like.

The first annular seal portion 312 and the second annular seal portion 313 of the pressure seal portion 31 in the insertion container body 3 are arranged at any slide position from the contracted state to the extended state. 2, the inner peripheral surface 211 of the first accommodating portion 20 can be pressed and sealed.
In addition, since the pressure seal with respect to the 1st accommodating part 20 of the external container body 2 by the press seal part 31 of the internal container body 3 is exhibited in arbitrary slide positions, the internal container body 3 and the external container body 2 Can be held at an arbitrary slide position by pressing the pressing seal portion 31.

Specifically, the extrapolation container body 2 is more easily deformed than the insertion container body 3 by making the extrapolation container body 2 made of PFA and the insertion container body 3 made of PP or PE. Therefore, when the first annular seal portion 312 and the second annular seal portion 313 of the press seal portion 31 in the insertion container body 3 press-seal the inner peripheral surface 211 of the first storage portion 20 in the extrapolation container body 2. In addition, the inner peripheral surface 211 of the first accommodating portion 20 is pushed outward by the first annular seal portion 312 and the second annular seal portion 313 of the pressing seal portion 31 and expands somewhat. And since the internal peripheral surface 211 of the 1st accommodating part 20 acts in the direction which restores the bulge to the original state, the 1st annular seal part 312 of the press seal part 31, the 2nd annular seal part 313, This results in a stronger sealing of the cooperating sealing surfaces.

In addition, the combination of the PFA extrapolating container main body 2 and the PP or PE interpolating container main body 3 is also a point that holds the interpolating container main body 3 and the extrapolating container main body 2 at an arbitrary slide position. The effect of enhancing the holding function is exhibited.

In an actual application of the container 1, for example, in a state where the extrapolation container body 2 and the insertion container body 3 are slid and extended, the container 1 is a sample accommodated in the first accommodation part 20 and the second accommodation part 30. It is used as a container for centrifugal concentration in which the solution is concentrated with a centrifugal concentrator. As shown in FIG. 4, the container 1 is firmly locked by the sealing function and the holding function at the position where the inner container body 3 is extended from the outer container body 2 to the maximum extent. The reason for this is that, as shown in FIG. 9, the outer edge of the boundary 315 between the pressure seal portion 31 and the rotation restricting portion 32 in the insertion container body 3 is formed on the second inclined surface 2122 of the convex portion 212 in the insertion container body 2. This is because they abut and receive a reaction force from the inclined surface 2122. In this state, the container 1 is put on a centrifugal concentrator as will be described later.

On the other hand, after centrifugal concentration, the container 1 is a container for sample analysis in which the extrapolated container body 2 and the inserted container body 3 are slid and contracted to analyze the centrifugally concentrated sample with a sample analyzer. Used as. Moreover, the container 1 used as a container for centrifugal concentration and the container 1 used as a container for sample analysis are the same containers that are simply deformed from a stretched state to a contracted state. No transfer is required.

[Effect of the embodiment]
According to the container 1 of this embodiment mentioned above, the following various effects are produced, for example.
The container 1 is relatively slidable from the contracted state shown in FIG. 2 to the extended state shown in FIG. Thereby, the volume of the accommodating part 10 of the container 1 can be arbitrarily increased / decreased in the range which can be designed.
Therefore, for example, the container 1 can be manufactured in a contracted state with a size and volume that conforms to the standard of a predetermined device. And this container 1 can accommodate a larger amount of sample exceeding the standard in the stretched state.

In the container 1, the relative rotation of the extrapolation container main body 2 and the insertion container main body 3 is a range in which the four convex portions 212 in the extrapolation container main body 2 are positioned inside the four concave portions 322 in the insertion container main body 3 ( That is, it is limited to a range of about 90 °.
Therefore, for example, when the extrapolation container body 2 is rotated when the container 1 is set in a predetermined device, the insertion container body 3 rotates with the extrapolation container body 2 only by a delay of about 90 degrees at the maximum. Thus, integral rotation of the extrapolation container body 2 and the insertion container body 3 can be realized.

In the container 1, each of the four recesses 322 in the insertion container main body 3 is provided over a range of, for example, 60 ° or more, specifically, a range of approximately 90 ° along the circumferential direction of the rotation restricting portion 32. It is done. Thus, the formation of the wide concave portion 322 is easier than the formation of the narrow concave portion. Therefore, the rotation restricting portion 32 and the insertion container main body 3 and, as a result, the container 1 can be manufactured at a relatively low cost.
In other words, when a slide is realized by a combination of a convex portion and a concave portion that are substantially not allowed to rotate, it is necessary to form a thin and long concave portion. However, formation of such a recess is not easy. On the other hand, if rotation of a predetermined angle is allowed, that is, if the width of the recess can be increased, the formation of the recess is easy.

In the container 1, the first annular seal portion 312 and the second annular seal portion 313 of the pressure seal portion 31 in the insertion container main body 3 are located at any position from the contracted state to the expanded state. The inner peripheral surface 211 of the first accommodating portion 20 in the extrapolation container main body 2 is pressed and sealed without change.
For this reason, when the container 1 is expanded and contracted, it is possible to avoid the possibility of foreign matters entering the container 1.

The extrapolation container body 2 (for example, made of PFA) is formed of a material that is more easily deformed than the insertion container body 3 (for example, made of PP or PE).
Therefore, the first annular seal portion 312 and the second annular seal portion 313 of the pressure seal portion 31 can easily secure a large amount of pressure displacement of the inner peripheral surface 211 of the first accommodating portion 20 in the extrapolation container body 2 and are stable. It is easy to realize a seal by pressing.

The extrapolation container body 2 and the insertion container body 3 can be held at an arbitrary slide position by pressing of the pressing seal portion 31.
Therefore, the holding can be realized without providing another configuration for holding at an arbitrary slide position.

Of the extrapolation container body 2 and the insertion container body 3, the container body in which the sample is stored is referred to as the lower container body, and the other container body is referred to as the upper container body. It is formed from a material that is highly resistant to
A material having high resistance to a sample often has limitations such as being relatively expensive and having low moldability. If only the lower container main body is formed from a material having high resistance to the sample, the upper container main body can employ a material that avoids restrictions.

The container 1 is for centrifugal concentration in which the sample accommodated in the first accommodating part 20 and the second accommodating part 30 is concentrated by a centrifugal concentrator in a state where the extrapolating container body 2 and the inserting container body 3 are slid and extended. In addition, after centrifugal concentration, the sample is analyzed by a sample analyzer in a state where the extrapolation container body 2 and the insertion container body 3 are slid and contracted.
Therefore, it is possible to use for sample analysis without transferring the centrifugally concentrated sample to another container for sample analysis. Therefore, contamination of the sample when the container 1 is transferred can be suppressed.

[Modification]
As mentioned above, although preferred embodiment of this invention was described, this invention can be implemented with a various form, without being limited to embodiment mentioned above.

In the above embodiment, the first annular seal portion 312 and the second annular seal portion 313 are provided in the press seal portion 31, but the present invention is not limited to this. For example, the second annular seal portion 313 may be omitted, and the pressure seal portion 31 may be configured with only the first annular seal portion 312.

In the above embodiment, the extrapolation container body 2 is made of PFA and the insertion container body 3 is made of PP or PE. However, the present invention is not limited to this. For example, in the case where not only the extrapolation container body 2 but also the insertion container body 3 is required to have a material with high resistance to the sample, the insertion container body 3 may be made of PFA.

Moreover, in the said embodiment, although the convex part 212 was provided in the inner peripheral surface 211 in the extrapolation container main body 2, and the recessed part 322 was provided in the outer peripheral surface 321 of the rotation control part 32 in the insertion container main body 3, it is not limited to this. . For example, a concave portion may be provided on the inner peripheral surface 211 of the extrapolation container main body 2, and a convex portion may be provided on the outer peripheral surface 321 of the rotation restricting portion 32 of the inner case 3.

Moreover, in the said embodiment, although the extrapolation container main body 2 was made into the lower container main body, and the insertion container main body 3 was made into the upper container main body, it is not limited to this. For example, the insertion container main body 3 may be a lower container main body, and the extrapolation container main body 2 may be an upper container main body. In this case, the insertion container body 3 as the lower container body may be made of PFA since a material having high resistance to the sample is required, and the extrapolation container body 2 as the upper container body may be made of PP or PE.
The present invention can be applied to containers other than those for sample analysis and centrifugal concentration.

DESCRIPTION OF SYMBOLS 1 Container 10 Storage part 2 Extrapolation container main body (lower container main body)
20 1st accommodating part 211 Inner peripheral surface (inner surface)
212 Convex 3 Insertion container body (upper container body)
30 Second accommodating portion 31 Press seal portion 322 Recessed portion CL1 Center axis (rotating shaft)
CL2 center axis (rotary axis)

Claims (6)

A container comprising an extrapolation container body having a first housing part and an insertion container body having a second housing part,
The insertion container main body is inserted into the extrapolation container main body, and the insertion container main body slides with respect to the extrapolation container main body, thereby including the first storage portion and the second storage portion. The volume of the storage part increases or decreases,
The extrapolation container body and the insertion container body are restricted in relative rotation with the slide direction as the rotation axis,
The said insertion container main body is a container provided with the press seal part which presses and seals the inner surface of the said 1st accommodating part of the said extrapolation container main body irrespective of a slide position. The container according to claim 1, wherein the extrapolation container body is formed of a material that is more easily deformed than the insertion container body. One of the extrapolation container body or the insertion container body has a convex part for realizing sliding and restricting relative rotation, and the other of the extrapolation container body or the insertion container body is A concave portion in which the convex portion is disposed, and has a concave portion for realizing sliding and restricting relative rotation,
The container according to claim 1, wherein the convex part and the concave part allow relative rotation of a predetermined angle to the extrapolation container body and the insertion container body. The container according to any one of claims 1 to 3, wherein the extrapolation container main body and the insertion container main body can be held at an arbitrary slide position by pressing of the pressing seal portion. Of the extrapolation container main body or the insertion container main body, a container main body in which a sample is stored is referred to as a lower container main body, and the other container main body is referred to as an upper container main body. The container according to any one of claims 1 to 4, which is formed from a material having high resistance to a sample. The extrapolation container main body and the extrapolation container main body are for centrifugal concentration for concentrating the sample accommodated in the accommodating portion in a stretched state with a centrifugal concentrator, and after extrapolation after centrifugal concentration. The container according to any one of claims 1 to 5, which is used for sample analysis in which a centrifugally concentrated sample is analyzed by a sample analyzer in a state where the container body and the insertion container body are slid and contracted.

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