JP2010210345A - Inspection jig - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inspection jig with a simple structure capable of easily determining whether or not an inner diameter of an aperture part of a reaction vessel is within a prescribed range. <P>SOLUTION: The inspection jig includes: a holding part 2 for detachably holding the reaction vessel 10 which has at least the aperture part 10a made up of an elastic member; a projection part 3 which fits in the aperture part 10a and maintains its fit-in state when the inner diameter of the aperture part 10a is within the prescribed range; a support part 4 for supporting the projection part 3; and a guide part 5 which is disposed on the holding part 2, guides the support part 4 so as to direct the head of the projection part 3 toward the aperture part 10a and causes the projection part 3 to be inserted into the aperture part 10a by a fixed force. The reaction vessel 10 is determined to be good when the reaction vessel 10 maintains the fit-in state together with the projection part 3. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an inspection jig for determining an inner diameter of an opening of a reaction container that contains and reacts a specimen and a reagent.

  2. Description of the Related Art Conventionally, there is known an automatic analyzer that analyzes an immune item by measuring a reaction solution obtained by reacting a specimen such as blood or body fluid with a reagent. This automatic analyzer uses a disposable reaction vessel in order to prevent fluctuations in measurement results due to carry-over of the specimen or poor cleaning (see Patent Document 1).

JP 2003-83992 A JP-A-4-203916

  By the way, the automatic analyzer described in Patent Document 1 is fitted with a rod portion included in the transfer unit at the opening of the reaction vessel, and is transferred in a state where the reaction vessel is fitted with the rod portion. For this reason, the internal diameter of the opening part of the reaction container fitted to a rod part needs to be in a predetermined range.

  However, when determining whether or not the inner diameter of the opening of the reaction vessel is within a predetermined range, it is necessary to measure the inner diameter using an industrial microscope or the like, which causes an excessive work burden on the operator. There was a point (refer patent document 2).

  The present invention has been made in view of the above, and provides an inspection jig that can easily determine whether or not the inner diameter of an opening of a reaction vessel is within a predetermined range with a simple configuration. With the goal.

In order to solve the above-described problems and achieve the object, an inspection jig according to the present invention includes a holding portion that removably holds a reaction container having at least an opening formed of an elastic member, and a fitting to the opening. A protrusion that maintains a fitting state when the inner diameter of the opening is within a predetermined range, and is provided on the holding portion and a support portion that supports the protrusion, and the tip of the protrusion Guiding the supporting portion toward the opening, and inserting the protrusion into the opening with a constant force;
And the reaction container is determined to be non-defective when the reaction container maintains a fitting state with the protrusion.

  The inspection jig according to the present invention is characterized in that, in the above invention, the guide portion guides the axial center of the projection so as to coincide with the axial center of the opening.

  In the inspection jig according to the present invention, in the above invention, the guide portion is formed in a cylindrical shape, and the support portion is guided into the opening portion by being inserted into the guide portion. Features.

  The inspection jig according to the present invention further includes an elastic body that urges the support portion toward the holding portion in the above invention, and the protrusion includes the support portion held by the elastic body. It fits in the said opening part in the state biased toward the part.

  The inspection jig according to the present invention is a projection that fits into an opening of a reaction vessel having at least an opening formed of an elastic member, and maintains the fitting state when the inner diameter of the opening is within a predetermined range. With a simple configuration, the guide part inserts the protrusion part into the opening of the reaction container with a constant force, and the reaction container is determined to be non-defective when the reaction container is kept in engagement with the protrusion part. There is an effect that it can be easily determined whether or not the inner diameter of the opening of the reaction vessel is within a predetermined range.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of an inspection jig according to the present invention will be described in detail with reference to the drawings. The invention is not limited to the embodiments. In the description of the drawings, the same parts are denoted by the same reference numerals.

(Embodiment 1)
1 is a perspective view showing a schematic configuration of an inspection jig according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view taken along line AA in FIG. The inspection jig 1 according to the first embodiment is used when inspecting whether or not the inner diameter of the opening of a reaction container used in an automatic analyzer for analyzing a sample such as blood or body fluid is within a predetermined range. Is.

  As shown in FIGS. 1 and 2, the inspection jig 1 includes a holding portion 2 that holds the reaction vessel 10, a support portion 4 that supports a protruding portion 3 that fits into the opening 10 a of the reaction vessel 10, and a protrusion And a guide portion 5 that guides the support portion 4 with the tip of the portion 3 facing the opening 10 a of the reaction vessel 10.

  The holding unit 2 is a plate-like member and has a hole 2a that holds the reaction vessel 10 in the center. The hole 2a has a cylindrical shape and holds the reaction vessel 10 in a detachable manner. Legs 6 are provided at the four corners of the holding unit 2 to support the holding unit 2. The four legs 6 are supported by the bottom plate 7.

  The support portion 4 is a plate-like member, has holes 4a through which the guide portions 5 are inserted at both ends, and supports the projection portion 3 at the center lower portion. The protrusion 3 has a hemispherical tip and fits into the opening 10 a of the reaction vessel 10. As shown in FIG. 2, the protrusion 3 is formed such that the inner diameter W <b> 1 of the cross section is larger than the inner diameter W <b> 2 of the opening 10 a of the reaction vessel 10. The protrusion 3 maintains a fitting state with the opening 10a when the inner diameter W2 of the opening 10a of the reaction vessel 10 is within a predetermined range.

  The guide portion 5 has a cylindrical shape and is realized by a material having a low friction coefficient, for example, polyacetal. The guide part 5 is provided on both sides of the hole 2 a of the holding part 2. The guide 5 is supported so that the tip of the protrusion 3 faces the opening 10a of the reaction vessel 10 held by the holding portion 2, and the axial center of the protrusion 3 coincides with the axial center of the opening 10a of the reaction vessel 10. Guide part 4. Here, the constant force means that when the support part 4 is dropped from a predetermined position, the inner weight W2 of the opening 10a of the reaction vessel 10 is deformed so as to expand due to its own weight including the protrusion 3 and the support part 4, and the protrusion This is the force with which the portion 3 is fitted into the opening 10 a of the reaction vessel 10. The predetermined position is set in advance based on the height at which the protrusion 3 is fitted into the opening 10a of the non-defective reaction vessel 10 manufactured within the standard.

  Next, the reaction vessel 10 will be described. FIG. 3 is a perspective view showing the reaction vessel. As shown in FIG. 3, the reaction container 10 is a very small container having a capacity of several mL to several tens of mL, and has an opening 10a at the top. At least the opening 10a of the reaction vessel 10 is formed of an elastic member, for example, a synthetic resin such as cyclic olefin or polystyrene.

  Here, the operation of the above-described inspection jig 1 will be described with reference to FIG. FIG. 4 is a cross-sectional view showing the operation of the inspection jig 1. As shown in FIG. 4, the inspection jig 1 holds the reaction vessel 10 in the hole 2 a of the holding unit 2 and causes the support unit 4 to stand by at a predetermined position of the guide unit 5 (FIG. 4A).

  Thereafter, the inspection jig 1 drops the support portion 4 from a predetermined position of the guide portion 5 and fits the projection portion 3 into the opening portion 10a of the reaction vessel 10 (FIG. 4B). At this time, since the guide part 5 guides the support part 4 so that the axial center of the protrusion part 3 coincides with the axial center of the opening part 10a, the protrusion part 3 is applied to the opening part 10a of the reaction vessel 10 with a constant force. Inserted.

  Thereafter, when the reaction vessel 10 is a non-defective product, the inspection jig 1 maintains the fitting state of the reaction vessel 10 with the protrusion 3 when the support portion 4 is lifted, and the reaction vessel 10 is lifted from the holding portion 2 together with the support portion 4. (FIG. 4 (c)). On the other hand, when the reaction vessel 10 is defective, the inspection jig 1 lifts the support portion 4 so that the reaction vessel 10 is disengaged from the protrusion 3 and the reaction vessel 10 remains in the holding portion 2 (see FIG. 4 (d)).

  In the first embodiment, a protrusion 3 is provided that fits into the opening 10a of the reaction vessel 10 and maintains the fitting state when the inner diameter of the opening 10a of the reaction vessel 10 is within a predetermined range. 5 inserts the protrusion 3 into the opening 10a of the reaction container 10 with a constant force, and determines that the reaction container 10 is a non-defective product when the reaction container 10 is kept in engagement with the protrusion 3. It is possible to easily determine whether or not the inner diameter of the opening 10a of the reaction vessel 10 is within a predetermined range with a simple configuration. Moreover, since the inspection jig 1 has a simple configuration, it can be easily carried by an operator.

(Embodiment 2)
Next, a second embodiment of the present invention will be described. In Embodiment 1 described above, the support portion that supports the protrusion is dropped from a predetermined position of the guide portion, and the protrusion is fitted into the opening of the reaction container. In Embodiment 2, however, the holding portion is The protrusion is fitted into the opening of the reaction vessel by an elastic body that biases the support toward the side.

  FIG. 5 is a perspective view showing a schematic configuration of the inspection jig 20 according to the second embodiment. 6 is a cross-sectional view taken along line BB in FIG. As shown in FIGS. 5 and 6, the inspection jig 20 includes an elastic body 21 that biases the support portion 4 toward the holding portion 2 side. The elastic body 21 is realized by a tension spring and is laid between a connection portion 22 provided in the holding portion 2 and a connection portion 23 provided in the support portion 4.

  As shown in FIG. 6, the inspection jig 20 configured as described above pulls the support portion 4 away from the holding portion 2 against the spring force of the elastic body 21 and holds the reaction vessel 10 on the holding portion 2. . Thereafter, the inspection jig 20 releases the support part 4 that has been pulled away from the holding part 2, and the support part 4 is urged toward the holding part 2 by the spring force of the elastic body 21, and as shown in FIG. 3 is inserted into the opening 10a with a constant force. Here, the elastic coefficient of the elastic body 21 is set in advance based on, for example, the force with which the protrusion 3 is fitted into the opening 10a of the non-defective reaction vessel 10 manufactured within the standard. Note that the elastic body 21 is not necessarily a tension spring, and may be, for example, elastic rubber.

  In the second embodiment, the protrusion 3 is fitted into the opening 10 a of the reaction vessel 10 in a state where the support portion 4 is urged toward the holding portion 2 by the elastic body 21. Therefore, since the protrusion 3 can be fitted to the opening 10a of the reaction vessel 10 with a certain force by the elastic body 21, the length of the guide 5 that guides the movement of the support 4 can be shortened. In addition, the inspection jig 20 can be miniaturized and portability can be improved. Furthermore, similarly to Embodiment 1, it is possible to easily determine whether or not the inner diameter of the opening 10a of the reaction vessel 10 is within a predetermined range with a simple configuration. In addition, since the protrusion 3 is fitted to the opening 10a of the reaction vessel 10 using the elastic body 21, the direction in which the inspection jig 20 is arranged can be turned sideways, corresponding to various installation states. be able to.

(Embodiment 3)
Next, a third embodiment of the present invention will be described. In the third embodiment, the guide portion is formed in a cylindrical shape, and the protrusion is guided to the opening of the reaction vessel by inserting the support portion into the guide portion.

  FIG. 8 is a perspective view showing a schematic configuration of the inspection jig 30 according to the third embodiment. 9 is a cross-sectional view taken along the line CC of FIG. As shown in FIGS. 8 and 9, the guide portion 31 is formed in a cylindrical shape and provided on the holding portion 2. The support part 32 is formed in a columnar shape, and supports the protrusion part 3 at the center lower part. Further, a rod portion 33 is provided on the upper portion of the support portion 32. The support portion 32 is guided into the opening 10 a of the reaction vessel 10 by being inserted into the guide portion 31, and the protrusion 3 is inserted into the opening 10 a of the reaction vessel 10 with a constant force.

  In the third embodiment, the guide portion 31 is formed in a cylindrical shape, and the support portion 32 is inserted into the guide portion 31, so that the projection portion 3 is reliably inserted into the opening 10 a of the reaction vessel 10 with a constant force. can do. Therefore, by providing only one guide part 31 on the holding part 2, the inspection jig 30 can be miniaturized and portability can be improved. Furthermore, similarly to Embodiment 1, it is possible to easily determine whether or not the inner diameter of the opening 10a of the reaction vessel 10 is within a predetermined range with a simple configuration.

  In the first to third embodiments described above, the shape of the tip of the protrusion 3 can be changed. FIG. 10 is a perspective view showing a modification of the protrusion according to the first modification of the first to third embodiments. The protrusion 41 shown in the figure has a tapered fitting portion 41a. The fitting part 41a is fitted into the opening 10a of the reaction vessel 10 as in the first to third embodiments.

  FIG. 11 is a perspective view showing a modified example of the protrusion according to the second modified example of the first to third embodiments. The protrusion 42 shown in the figure has a cubic fitting portion 42a. The fitting part 42a is fitted into the opening 10a of the reaction vessel 10 as in the first to third embodiments.

  FIG. 12 is a perspective view showing a modified example of the protrusion according to the third modified example of the first to third embodiments. The protrusion 43 shown in the figure is formed with a triangular prism fitting portion 43a. The fitting part 43a is fitted into the opening 10a of the reaction vessel 10 as in the first to third embodiments.

1 is a perspective view illustrating a schematic configuration of an inspection jig according to a first embodiment. It is the sectional view on the AA line shown in FIG. It is a perspective view which shows a reaction container. It is sectional drawing which shows operation | movement of an inspection jig. It is a perspective view which shows schematic structure of the inspection jig concerning Embodiment 2. FIG. FIG. 6 is a sectional view taken along line B-B shown in FIG. 5. It is a figure explaining the state which the elastic body shown in FIG. 5 compressed. It is a perspective view which shows schematic structure of the test | inspection jig concerning Embodiment 3. FIG. It is CC sectional view taken on the line shown in FIG. It is a perspective view which shows the 1st modification of the projection part concerning this Embodiment 1-3. It is a perspective view which shows the 2nd modification of the projection part concerning this Embodiment 1-3. It is a perspective view which shows the 3rd modification of the projection part concerning this Embodiment 1-3.

DESCRIPTION OF SYMBOLS 1,20,30 Inspection jig 2 Holding | maintenance part 2a, 8 Hole part 3,41,42,43 Protrusion part 41a, 42a, 43a Fitting part 4,32 Support part 5,31 Guide part 6 Leg 7 Bottom plate 10 Reaction container 10a Opening part 21 Elastic body 22, 23 Connection part 33 Rod part

Claims (4)

A holding part for detachably holding a reaction vessel having at least an opening formed of an elastic member;
A support part that fits into the opening part and has a protrusion part that maintains a fitting state when the inner diameter of the opening part is within a predetermined range; and a support part that supports the protrusion part;
A guide part provided on the holding part, guiding the support part with the tip end of the protrusion part facing the opening part, and inserting the protrusion part into the opening part with a constant force;
An inspection jig comprising: determining that the reaction container is a non-defective product when the reaction container maintains a fitted state with the protrusion.   The inspection jig according to claim 1, wherein the guide portion guides the axial center of the protruding portion so as to coincide with the axial center of the opening. The guide portion is formed in a cylindrical shape,
The inspection jig according to claim 1, wherein the support portion is guided into the opening portion by being inserted into the guide portion. An elastic body for urging the support portion toward the holding portion;
The said protrusion part is fitted in the said opening part in the state in which the said support part was urged | biased by the said elastic body toward the said holding part, The Claim 1 characterized by the above-mentioned. Inspection jig.

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