JP2010032333A - Inspection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inspection device which suppresses an increase in its size and cost though equipped with a discharge device and is capable of easily performing the replacement of a fluid serving as a discharge target. <P>SOLUTION: The inspection device equipped with the discharge device 10 is used. The fluid in a container 14 having a discharge port is discharged by the discharge device 10. A pressing member 1 for pressing the container 14 and a pressing member 3 for pressing the container 14 at the position opposed to the pressing member 1 are provided in the discharge device 10. The contact surface with the container 14 of at least one of the pressing members 1 and 3 is preferably formed so as to position the container 14. Alternatively, it is preferable to form a recessed part 2 to the contact surface with the container 14. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an inspection apparatus including a discharge device.

  Conventionally, in order to automate the supply of liquid specimens, reagents, and the like, an inspection device is sometimes provided with a discharge device (see, for example, Patent Documents 1 to 3). In the inspection devices disclosed in these patent documents, the discharge device includes a discharge nozzle, a plunger pump, a pump for pumping, a tank, a plunger pump drive mechanism, a control device, and the like.

  Further, in the above-described ejection device, a liquid to be ejected such as a liquid specimen or reagent is stored in a tank. Then, the liquid stored in the tank is pumped up by the pump for pumping up and sent to the plunger pump.

  The plunger pump includes a cylindrical main body and a plunger. The plunger pump drive unit includes a ball screw and an electric motor that drives the ball screw. The ball screw includes a screw shaft and a nut that moves when the screw shaft rotates, and the nut is connected to a plunger of the syringe pump. Therefore, when the output shaft of the electric motor rotates and the screw shaft of the ball screw rotates, the plunger connected to the nut reciprocates, and the plunger pump operates.

By the operation of the plunger pump, the liquid sent from the pumping pump is sent to the discharge nozzle and discharged to the outside. Further, the electric motor is controlled by the control device and automatically operated. As described above, in the inspection apparatus disclosed in the above patent document, a liquid sample, a reagent, or the like is automatically supplied to the analysis unit of the inspection apparatus by the ejection device.
JP 2008-2897 A JP 2008-2899 A JP 2008-134159 A

  However, in the inspection apparatus disclosed in the above-mentioned patent document, since the discharge device is enlarged due to its structure, there is a problem that the inspection apparatus itself is also enlarged. In addition, since the structure of the ejection device cannot be simplified, there is a problem that the cost of the inspection device increases.

  Furthermore, when the liquid to be discharged is replaced, the number of parts that must be replaced or cleaned in the discharge device is large, so that the liquid replacement is complicated. For this reason, it is extremely difficult to use the inspection apparatus disclosed in the above-mentioned patent document for inspection that requires replacement of the liquid to be ejected.

  The object of the present invention is to solve the above-mentioned problems, and despite having a discharge device, it is possible to suppress the increase in size and cost of the device and to easily exchange the fluid to be discharged. It is to provide an inspection device.

  In order to achieve the above object, an inspection apparatus according to the present invention is an inspection apparatus including a discharge device that discharges a fluid inside a container having a discharge port, and the discharge apparatus presses the container first. And a second pressing member that presses the container at a position facing the first pressing member.

  In the inspection apparatus of the present invention, the discharge device can discharge a fluid without requiring a complicated configuration such as a pump as in the prior art, and the increase in size and complexity of the discharge device is suppressed. Has been. For this reason, according to the inspection apparatus of this invention, the enlargement of an inspection apparatus and the increase in cost are suppressed. Further, when changing the type of fluid to be discharged, it is only necessary to replace the container containing the fluid, and changing the type of fluid is extremely simple.

  In the inspection apparatus of the present invention, the contact surface with the container in at least one of the first pressing member and the second pressing member is preferably formed so that the container can be positioned. . In the inspection apparatus of the present invention, it is preferable that a concave portion is formed on a contact surface of at least one of the first pressing member and the second pressing member with the container. In these cases, the displacement of the container during pressing is suppressed, so that the container is reliably pressed.

  In the inspection apparatus of the present invention, the fluid inside the container is a liquid containing a solid component, and the first pressing member and the second pressing member are in a state where the container is pressed. Sometimes, a gap is formed between the two, and the gap is pressed by the inner surface of the portion pressed by the first pressing member and the second pressing member in the container. It is preferable that the inner surface of the portion is set so as not to contact. In this case, when a fluid containing a solid component, for example, a specimen containing a blood cell component is stored in the container, destruction of the solid component (blood cell component) due to pressing is suppressed.

  Moreover, it is preferable that the inspection apparatus of the present invention is an aspect in which the first pressing member is a cam capable of intermittently pressing the container. If it is set as this aspect, a container can be reliably pressed with a simple structure.

  In the above aspect, the second pressing member is a second cam capable of intermittently pressing the container, and the second cam has a rotation axis parallel to the rotation axis of the cam. More preferably, it is arranged to rotate in conjunction with the rotation of the cam. In this case, since the container is pressed by the two cams, the degree of deformation of the container can be increased without increasing the cam. This is effective when it is desired to discharge most of the fluid inside the container to the outside.

  Furthermore, in the above aspect, the discharge device further includes a cover member that can be positioned vertically below the discharge port, and the cover member is a distance between the first pressing member and the second pressing member. Moves in a direction approaching the discharge port when the pressure tends to increase, and moves away from the discharge port when the distance between the first pressing member and the second pressing member tends to be shortened It is preferable to do. In this case, it is possible to suppress the excess fluid from dripping from the discharge port. Therefore, it is suppressed that the inside of the inspection apparatus is contaminated with an extra sample or reagent.

  In addition, the cover member is attached to a rotation shaft of the cam serving as the first pressing member or the second pressing member via a clutch mechanism, and the clutch mechanism is in accordance with a rotation angle of the cam. Then, it is preferable that the cover member and the cam are connected or the connection is released, and the cover member is moved. In the case of such a configuration, it is not necessary to prepare a new power source for operating the cover member. Therefore, when the cover member is provided, an increase in size of the device and an increase in device cost are suppressed.

  The inspection apparatus according to the present invention may be configured such that each of the first pressing member and the second pressing member moves in an opposing direction and sandwiches the container. Even if it is set as this aspect, a container can be reliably pressed with a simple structure.

  As described above, according to the inspection apparatus of the present invention, it is possible to suppress the increase in size and cost of the apparatus despite the provision of the discharge apparatus. In addition, according to the inspection apparatus of the present invention, it is possible to easily exchange the fluid to be discharged.

(Embodiment 1)
Hereinafter, the inspection apparatus according to Embodiment 1 of the present invention will be described with reference to FIGS. First, based on FIG.1 and FIG.2, the discharge apparatus 10 which comprises the test | inspection apparatus in this Embodiment 1 is demonstrated. FIG. 1 is a perspective view showing a configuration of a discharge device that is a part of an inspection apparatus according to Embodiment 1 of the present invention. FIG. 2 is a diagram illustrating a usage state of the discharge device illustrated in FIG. 1.

  The inspection apparatus (see FIG. 3) according to the first embodiment includes a discharge device 10 shown in FIGS. The discharge device 10 is used to discharge the fluid inside the container 14 having a discharge port. In the first embodiment, examples of the fluid stored in the container 14 include a drug solution, an infusion solution, a liquid reagent, a biological sample (blood, plasma, serum, urine, or the like).

  As shown in FIGS. 1 and 2, the discharge device 10 includes a pressing member 1 that presses the container 14 and a pressing member 3 that presses the container 14 at a position facing the pressing member 1. In the first embodiment, the pressing member 1 is a cam that can intermittently press the container 14. The pressing member 3 is a support base that supports the container 14 pressed by the pressing member 1. In the following description, the pressing member 1 is “cam 1” and the pressing member 3 is “support base 3”.

  The cam 1 contacts and presses the container 14 on its outer peripheral surface while rotating around the shaft 9 as a rotation axis. Further, a concave portion 2 is provided on the outer peripheral surface serving as a contact surface of the cam 1. Specifically, the cam 1 has a circular cross section and has a shape obtained by sandwiching both ends of a uniform hyperboloid between two disks. A recess formed by a uniform hyperboloid is the recess 2. Further, the cam 1 is fixed to the shaft 9 and rotates about this as a central axis. The shaft 9 is an eccentric shaft, and is eccentric with respect to the shaft passing through the center of the circular cross section of the cam 1.

  The support 3 supports the container 14 so that the pressed container 14 does not move. The support base 3 does not move like the cam 1 but supports the container 14 and at the same time presses the pushing portion 15 by the reaction force of the force received from the container 14. A concave portion 4 is also provided on the contact surface of the support base 3 with the container 14.

  The discharge device 10 further includes a plate-like frame 5, gears 6 and 7, and an electric motor 11. The shaft 9 is attached to the frame 5 in a rotatable state. In the shaft 9, a gear 6 is attached between the frame 5 and the cam 1, and the gear 6 rotates together with the shaft 9.

  A gear 7 is arranged so as to mesh with the gear 6. The gear 7 is attached to the shaft 8 of the electric motor 11. The electric motor 11 is fixed to the back surface of the frame 5 (the surface opposite to the surface on which the shaft 9 is attached) with the shaft 8 inserted through a through hole (not shown) provided in the frame 5. Yes.

  In the first embodiment, the container 14 is a so-called dropper, and includes an extruding portion 15, a main body tube 16, and a discharge nozzle 18. The discharge nozzle 18 is provided in the main body tube 16 and communicates therewith. The extruding portion 15 is formed in a bag shape by a flexible material such as a resin material or a rubber material, and the opening portion communicates with the main body tube 16.

  Therefore, in the container 14, when the pushing portion 15 is pressed and deformed by the cam 1 and the support 3, the fluid stored in the main body tube 16 and the pushing portion 15 is pushed out to the discharge nozzle 18 and discharged. It is discharged to the outside from a discharge port (not shown) at the tip of the nozzle 18.

  The container 14 is attached to the tray 19 and disposed between the cam 1 and the support base 3. Specifically, the body tube 16 of the container 14 is provided with a ring 17 surrounding the body tube 16 for attachment to the tray 19. Further, a concave portion 19a that is aligned with the ring 17 is formed on the upper surface of the tray 19, and a through hole 19b is formed on the bottom surface of the concave portion 19a. The container 14 is attached to the tray 19 by inserting the discharge nozzle 18 into the through hole 19b and fitting the ring 17 into the recess 19a.

  The tray 19 is positioned on the frame 5 by the guide rails 12 and 13. Specifically, the guide rails 12 and 13 are attached to the surface (front surface) to which the cam 1 and the support base 3 of the frame 5 are attached along the normal line of this surface. Further, grooves 12a and 13a are formed in the guide rails 12 and 13, respectively, and both are arranged in a state where the grooves face each other. Then, two opposing end portions of the tray 19 are fitted into the grooves 12a and 13a, and the tray 19 is disposed at a predetermined position.

  Therefore, as shown in FIG. 2, the tray 19 to which the container 14 is attached is fitted into the guide rails 12 and 13, and the electric motor 11 is operated. If it does so, the motive power of the electric motor 11 will be transmitted from the gear 7 to the gear 6, and the cam 1 will be rotated. And the extrusion part 15 of the container 14 arrange | positioned at the tray 19 is pinched | interposed into the cam 1 and the support stand 3, and is pressed by these. As a result, as described above, the fluid stored in the container 14 is discharged from the discharge port of the discharge nozzle 18.

  Thus, in the inspection apparatus according to the first embodiment, unlike the conventional apparatus, the discharge apparatus 10 discharges a fixed amount of fluid without using various pumps, storage tanks, ball screws, and the like. be able to. Therefore, if the inspection apparatus is configured using the ejection device 10, an increase in the size and cost of the apparatus can be suppressed.

  Further, in the discharge device 10, the discharge amount can be easily controlled by adjusting the rotation angle and the rotation speed of the cam 1. Moreover, when the change of the kind of the fluid used as discharge object is required, what is necessary is just to prepare the some container 14 from which the stored fluid differs, and to replace | exchange suitably. According to the inspection apparatus in the first embodiment, the change of the type of fluid is simple.

  In the first embodiment, the recess 2 is a recess formed by a uniform hyperboloid as described above. Therefore, the recessed part 2 is formed so that the position of the container 14 can be regulated in a direction different from the direction of pressing by the cam 1 and the support 3. Specifically, the recess 2 regulates the position of the container 14 in the axial direction of the rotation shaft (shaft 9) of the cam 1. Further, the recess 4 is formed in a groove shape perpendicular to the shaft 9. The recess 4 also regulates the position of the container 14 in the axial direction of the shaft 9.

  For this reason, according to the first embodiment, when the container 14 is pressed by the cam 1 and the support 3, the container 14 is restrained by the recess 2 of the cam 1 and the recess 4 of the support 3. And even if the container 14 deform | transforms, since the position is fixed and position shift is suppressed, generation | occurrence | production of the press defect of the container 14 is suppressed. The first embodiment may be a mode in which the concave portion 2 is provided only in the cam 1 or a mode in which the concave portion 4 is provided only in the support base 3. Also in these aspects, the displacement can be suppressed.

  Next, the inspection apparatus 50 according to the first embodiment will be described with reference to FIGS. 3 and 4. FIG. 3 is a perspective view showing an internal configuration of the inspection apparatus according to Embodiment 1 of the present invention. FIG. 4 is a diagram showing an analysis tool used in the inspection apparatus shown in FIG.

  As shown in FIG. 3, the inspection device 50 according to the first embodiment includes a discharge device 10. In addition to the ejection device 10, the inspection device 50 also includes an analysis device 55 and a rotary table 51. Furthermore, in the first embodiment, the analysis by the analysis device 55 is performed using the analysis tool 60, and the discharge device 10 discharges the fluid in the container 14 into the analysis tool 60. In the example of FIG. 3, the container 14 is filled with a biological sample, and the analyzer 55 analyzes the biological sample.

  The rotary table 51 sends the analysis tool 60 before the biological sample is discharged to the lower side of the discharge device 10, and then sends the analysis tool 60 that has been discharged to the analysis device 55. FIG. 3 shows a state in which the analysis tool 60 is sent to the analysis device 55 by the rotary table 51.

  The analysis tool 60 is generally called a biochip. As shown in FIG. 4, the analysis tool 60 includes a light transmissive substrate (transparent substrate) 61 and a light transmissive cover (transparent cover) 62 covering the upper surface thereof. The analysis tool 60 has a plate shape with an arc formed on the periphery.

  The transparent substrate 61 includes a storage unit 63 that temporarily stores an analysis object such as a biological sample, a plurality of cells 64 that are optical measurement targets, and a plurality of flow paths 65. Specifically, a concave portion or a groove is formed on one main surface of the transparent substrate 91, and these function as the storage portion 63, the cell 64, or the flow path 65. Although not shown, each cell 64 is preliminarily provided with various reagents.

  The plurality of cells 64 are arranged in an arc shape. One reservoir 63 is disposed at the center of the array of cells 64, that is, at the center of the transparent substrate 61. The plurality of flow paths 65 are arranged radially, and connect the storage section 63 and each cell 64.

  Further, the transparent cover 62 includes a supply port 66 at the center thereof. The supply port 66 is provided so as to communicate with the storage unit 63 and is used to guide an analysis target such as a biological sample to the storage unit 63. The discharge device 10 discharges the fluid toward the supply port 66 when the analysis tool 60 is disposed below the discharge device 10.

  The biological sample supplied to the storage unit 63 via the supply port 66 is sent to each cell 64 via each flow path 65. In each cell 64, a specific component in the biological sample reacts with a reagent arranged in advance, and color development occurs.

  The analyzer 55 performs optical measurement for each cell 64. The analysis device 55 includes a light source unit 53 that irradiates a biological sample disposed in the cell 64 with light, a light receiving unit 52 that receives light that has passed through the cell 64, and a connector 54. The connector 54 rotates the analysis tool 60 so that the analysis target cell 64 (see FIG. 9) is positioned between the light source unit 53 and the light receiving unit 52.

  According to the inspection apparatus 50 having such a configuration, the user simply arranges the analysis tool 60 on the rotary table 51 and sets the container 14 filled with an analysis object such as a biological sample in the discharge apparatus 10. good. A control device (not shown) of the inspection device 50 automatically performs discharge of the biological sample by the discharge device 10 and analysis by the analysis device 55. The analysis result is displayed on a display device (not shown) provided in the inspection device 50, for example. When the analysis tool 60 is used, it is necessary to replace the biological sample to be discharged simultaneously with the replacement of the analysis tool 60, but it is only necessary to replace the container 14.

  Further, when the discharge device 10 is used as a part of the inspection device 50 capable of such automatic operation, it is preferable that a sensor for detecting the rotation angle of the cam 1 is attached to the discharge device 10. Examples of the sensor include a sensor that optically or mechanically detects the rotation angle of the shaft 9 (see FIG. 1).

  When the sensor is attached, the control device of the inspection device 50 executes operation and stop of the electric motor 11 (see FIG. 1) based on a signal from the sensor. For example, when the container 14 is set or when the discharge is completed, the control device determines the position of the cam 1 by the broken line in FIG. 2 (the container 14 is not pressed) based on the signal from the sensor. Position).

(Embodiment 2)
Next, the inspection apparatus in Embodiment 2 of this invention is demonstrated using FIGS. First, the discharge device 20 constituting the inspection device according to the second embodiment will be described with reference to FIGS. FIG. 5 is an exploded perspective view showing the configuration of the ejection device that is a part of the inspection device according to Embodiment 2 of the present invention. FIG. 6 is an assembly diagram showing a state in which the components shown in FIG. 5 are assembled. FIG. 7 is an exploded perspective view specifically showing the clutch mechanism shown in FIG.

  The inspection apparatus (see FIG. 10) according to the second embodiment includes a discharge device 20 shown in FIGS. The discharge device 20 is also used to discharge the fluid in the container 14 as with the discharge device 10 in the first embodiment. Further, as shown in FIGS. 5 and 6, the discharge device 20 also includes two pressing members, that is, a pressing member 21 and a pressing member 23. The pressing member 21 is a cam similar to the cam 1 and includes a recess 22 on the contact surface with the container 14.

  However, in the second embodiment, unlike the first embodiment, a cam is also used as the pressing member 23. The cam that functions as the pressing member 23 is also the same cam as the cam 1, and includes a recess 24 on the contact surface with the container 14. In the following description, the pressing member 21 is “cam 21” and the pressing member 23 is “cam 23”.

  In the second embodiment, the cams 21 and 23 also have a circular cross section like the cam 1 shown in the first embodiment (see FIG. 1), and the two ends of the uniform hyperboloid are two discs. It has a shape obtained by sandwiching. A recess formed by each uniform hyperboloid is a recess 22 or a recess 24.

  The cam 21 rotates about the shaft 30 as the central axis, and the cam 23 rotates about the shaft 31 as the central axis. The shaft 30 and the shaft 31 are also eccentric shafts like the shaft 9 of the discharge device 10 shown in the first embodiment. Further, the concave portion 22 restricts the position of the container 14 in the axial direction of the shaft 30 of the cam 21, and the concave portion 24 restricts the position of the container 14 in the axial direction of the shaft 31 of the cam 23.

  Further, the discharge device 20 includes a plate-like frame 25, gears 26 to 28, and an electric motor 32. The shaft 30 and the shaft 31 are attached to the frame 25 so as to be rotatable in parallel with each other at a set distance. The gear 27 is attached between the cam 21 and the frame 25 on the shaft 30 in the same manner as the gear 8 of the discharge device 10 of the first embodiment. The gear 28 is attached to the shaft 31 between the cam 23 and the frame 25 while being engaged with the gear 27.

  Further, the meshing of the gear 27 and the gear 28 is performed so that the cam diagram of the cam 21 and the cam diagram of the cam 23 are contrasted. This is for efficiently discharging the fluid in the container 14 as will be described later. The “cam diagram” as used in the second embodiment refers to a diagram in which, for example, the horizontal axis is the rotation angle and the vertical axis is the amount of displacement of the container 14 due to pressing.

  Further, the gear 27 meshes with the gear 26. The gear 26 is attached to the shaft 29 of the electric motor 32 in the same manner as the gear 7 of the discharge device 10 of the first embodiment. The electric motor 32 is the same as the electric motor 11 of the discharge device 10 according to the first embodiment, and is fixed to the frame 25 with a shaft 29 inserted through a through hole (not shown) provided in the frame 25. ing.

  Further, as shown in FIG. 5, also in the second embodiment, the object to be pressed is the container 14 shown in FIGS. 1 and 2 in the first embodiment. The container 14 is disposed at a predetermined position of the frame 25 by the tray 19 and the guide rails 12 and 13.

  Therefore, when the electric motor 32 is operated after setting the tray 19 to which the container 14 is attached (see FIGS. 8 and 9), the power of the electric motor 32 is transmitted from the gear 26 to the gear 27 and further to the gear 28. The cam 21 and the cam 23 rotate in opposite directions, and the pushing portion 15 of the container 14 is pressed from both sides by the cam 21 and the cam 23. As a result, the fluid stored in the container 14 is discharged from the discharge port of the discharge nozzle 18 to the outside.

  As described above, the discharge device 20 can discharge a fixed amount of fluid with a simple configuration, similarly to the discharge device 10 shown in the first embodiment. Therefore, even when the inspection apparatus is configured using the ejection device 20, the increase in size and cost of the apparatus are suppressed. Also in the discharge device 20, the discharge amount can be easily controlled by adjusting the rotation angle and the rotation speed of the cams 21 and 23. Further, the discharge device 20 can cope with a change in the type of fluid to be discharged by replacing the container 14.

  Also in the present second embodiment, the same recesses as the recesses 2 provided in the cam 1 in the first embodiment are formed in the cams 21 and 23, respectively, to restrict the position of the container 14. For this reason, generation | occurrence | production of the press defect by the position shift of the container 14 is suppressed. The second embodiment may be a mode in which the concave portion 22 is provided only in the cam 21 or a mode in which the concave portion 24 is provided only in the cam 23. Also in these aspects, the displacement can be suppressed.

  Further, in the discharge device 20 according to the second embodiment, two cams of the cam 21 and the cam 23 are used. Therefore, the degree of deformation of the extruded portion 15 can be increased as compared with the case where the extruded portion 15 of the container 14 is pressed with only one cam. According to the second embodiment, the degree of deformation of the push-out portion 15 can be increased without increasing the cam (without increasing the diameter of the cam). The second embodiment is effective when it is desired to discharge most of the fluid inside the extrusion unit 15 to the outside.

  Moreover, it is preferable that the cam 21 and the cam 23 are arranged so that a gap is formed between the two cams when the container 14 is pressed. The gap between the two cams (the distance between the cams) is set so that the inner surface of the portion pressed by the cam 21 and the inner surface of the portion pressed by the cam 23 in the container 14 do not contact each other. It is preferable.

  In this case, blockage of the pushing portion 15 due to the approach between the cam 21 and the cam 23 is avoided. Thereby, when the fluid is a liquid containing a solid component, for example, when the fluid is whole blood containing red blood cells, the solid component (red blood cells) is suppressed from being destroyed by pressing.

  Further, in the second embodiment, as shown in FIGS. 5 and 6, the discharge device 20 can be positioned vertically below the discharge port of the discharge nozzle 18 and can receive the trap of fluid. 33 is preferably provided. The cover member 33 suppresses the inside of the inspection device (see FIG. 10) on which the discharge device 20 is mounted from being contaminated by wrinkles falling from the discharge port of the discharge nozzle 18.

  However, if the cover member 33 is always positioned directly below the discharge nozzle 18, the necessary discharge becomes impossible. For this reason, the cover member 33 moves in the direction away from the discharge nozzle 18 when the distance between the cam 21 and the cam 23 tends to be shortened (when the container 14 is pressed). On the other hand, when the distance between the cam 21 and the cam 23 tends to increase (when the pressing of the container 14 ends), the cover member 33 moves in a direction approaching the discharge nozzle 18 (discharge port).

  Further, in order to realize the above-described movement by the cover member 33, the cover member 33 is attached to a shaft 30 that is a rotating shaft of the cam 21 via a clutch mechanism 39. The clutch mechanism 39 connects the cover member 33 and the cam 21 according to the rotation angle of the cam 21 or releases the connection therebetween.

  Specifically, the cover member 33 includes a cover portion 34 that receives unnecessary fluid falling from the discharge nozzle 18, a base portion 35 into which the shaft 30 is inserted, and a connecting portion 36 that connects the base portion 35 and the cover portion 34. And. Among these, the base 35 constitutes a part of the clutch mechanism 39.

  Further, the discharge device 20 includes a coil spring 37. Further, a projection 38 is provided in the center of the cam 21 in parallel with the shaft 30. The coil spring 37 and the protrusion 38 also constitute a part of the clutch mechanism 39. The coil spring 37 is disposed on the distal end side (the side away from the frame 25) of the shaft 30 with respect to the base portion 35 while being inserted through the shaft 30.

  The end of the shaft 30 on the tip side is inserted into the through hole 44a of the L-shaped plate 44 and is held in a rotatable state. The coil spring 37 is disposed between the plate 44 and the cam 21. Further, the end portion of the shaft 31 on the tip side is also inserted into the through hole 44b of the L-shaped plate 44 and is held in a rotatable state.

  In FIG. 5, reference numeral 40 denotes a coil spring that assists the movement of the cover member 33. One end of the coil spring 40 is connected to the cover member 33, and the other end is connected to the guide rail 12. Although not shown in FIGS. 5 and 6, the frame 25 is provided with a stopper 41 (see FIGS. 8 and 9) that restricts the movement of the cover member 33.

  Here, the clutch mechanism 39 will be described with reference to FIG. As shown in FIG. 7, a recess is formed in the portion of the base 35 on the cam 21 side. And the inclined surface is formed in the bottom face 35a of a recessed part so that the through-hole 35c may be enclosed. Reference numeral 35b denotes a step between the lowest portion and the highest portion of the bottom surface 35a. The protrusion 38 provided on the cam 21 contacts the bottom surface 35 a of the base portion 35. The contact position between the protrusion 38 and the bottom surface 35 a varies depending on the rotation angle of the cover member 33 with respect to the shaft 30.

  For example, when the cam 21 rotates in the direction of the arrow (counterclockwise in FIG. 7), the contact position between the protrusion 38 and the bottom surface 35a changes from the lowest portion to the high portion of the bottom surface 35a. In this case, the base 35 moves to the tip side of the shaft 30. Then, the base 35 compresses the coil spring 37 and receives a force pressing the base 35 against the cam 21 from the coil spring 37 as a reaction force. The force which presses the base part 35 becomes so large that the height of the bottom face 35a of a contact position becomes high. And if the force which presses this base 35 becomes more than fixed, the base 35 and the cam 21 will be connected, and the cover member 33 (base 35) will follow the cam 21 and will rotate.

  On the other hand, when the movement of the cover member 33 is restricted, specifically, when it comes into contact with a stopper 41 (see FIGS. 8 and 9) described later, the protrusion 38 exceeds the step 35b and contacts the lowest part of the bottom surface 35a. To do. At this time, since the base 35 moves toward the gear side of the shaft 30, the force with which the coil spring 37 presses the base 35 against the cam 21 is weakened. In this case, the connection between the base portion 35 and the cam 21 is released, and the base portion 35 idles with respect to the cam 21.

  Thus, the clutch mechanism 39 rotates the cover member 33 together with the cam 21 when the rotation angle of the cover member 33 is within the set range, and the cover member 33 when the rotation angle is within the other range. The cam 21 is idled. Due to the function of the clutch mechanism 39, the cover member 33 described above can be moved.

  Next, the operation of the ejection device 20 constituting the inspection device according to the second embodiment will be described with reference to FIGS. 8 and 9 are diagrams showing the operation of the ejection device according to the embodiment of the present invention. FIG. 8A and FIG. 8B each show a series of main operating states. 9A and 9B show a series of main operating states after the operating state shown in FIG. 8B. In the following description, FIGS. 5 to 7 are referred to as appropriate.

  FIG. 8A shows a case where the distance between the cam 21 and the cam 23 is the longest. In this case, in the clutch mechanism 39, the protrusion 38 contacts the lowest portion of the bottom surface 35a, and the connection between the cover member 33 and the cam 21 is released (see FIG. 7). Accordingly, the cover member 33 is pulled by the coil spring 40 and the cover portion 34 is disposed at a position that is vertically downward (directly below) the discharge nozzle 18.

  Subsequently, as shown in FIG. 8B, when the gear 27 rotates clockwise and the gear 28 rotates counterclockwise, the distance between the cam 21 and the cam 22 tends to be shortened. Is started. At this time, the protrusion 38 moves from the lowest portion of the bottom surface 35a to the higher portion (see FIG. 7). As a result, the cover member 33 and the cam 21 are gradually connected. When this connecting force becomes stronger than the elastic force of the coil spring 40, the cover member 33 starts to rotate clockwise together with the cam 21, and is separated from the discharge nozzle 18. go. The cover member 33 is rotated until it comes into contact with the stopper 41.

  Next, as shown in FIG. 9A, when the gear 27 further rotates in the clockwise direction and the gear 28 rotates in the counterclockwise direction, the cam 21 and the cam 22 further approach each other, and the pushing portion of the container 14 15 is pressed. Then, the fluid 42 is discharged from the discharge nozzle 18. When the cam 21 and the cam 22 are closest, the displacement of the pushing portion 15 is also maximized.

  Thereafter, as shown in FIG. 9B, when the clockwise rotation of the gear 27 is continued, the distance between the cam 21 and the cam 23 tends to increase and the pressure on the pushing portion 15 is gradually released. . In the clutch mechanism 39, the protrusion 38 exceeds the step 35b, and the connection between the cover member 33 and the cam 21 is released (see FIG. 7).

  When the connection between the cover member 33 and the cam 21 is released, the cover member 33 is pulled by the coil spring 40 and moves so that the cover portion 34 is positioned directly below the discharge nozzle 18. Therefore, when the fluid trap 43 remaining at the tip of the discharge nozzle 18 falls, the cover 34 catches this.

  As described above, in the second embodiment, the cover member 33 approaches the discharge nozzle 18 only when it does not interfere with the discharge of the fluid from the container 14, and prevents the excess tub 43 from dropping therefrom. . According to the discharge device 10 in the second embodiment, the discharge of the fluid 42 from the container 14 is not hindered, and the contamination by the ridge 43 inside the inspection device (see FIG. 10) is also suppressed.

  Next, the inspection apparatus 56 according to the second embodiment will be described with reference to FIG. FIG. 10 is a perspective view showing the internal configuration of the inspection apparatus according to Embodiment 2 of the present invention. As shown in FIG. 10, the analysis tool 60 is also used in the inspection apparatus 56 in the second embodiment.

  As shown in FIG. 10, the inspection device 56 in the second embodiment includes a discharge device 20, unlike the inspection device 50 in the first embodiment shown in FIG. 3. In other respects, the configuration of the inspection device 56 is the same as that of the inspection device 50. Also in the example of FIG. 10, the discharge device 20 discharges the biological sample into the analysis tool 60. 10 also shows a state in which the analysis tool 60 is sent to the analyzer 55 by the rotary table 51, as in FIG.

  The inspection device 56 can also be automatically operated in the same manner as the inspection device 50 in the first embodiment. For this reason, it is preferable to attach a sensor for detecting the rotation angle of the cam 21 and the cam 23 to the discharge device 20. Examples of the sensor include a sensor that optically or mechanically detects the rotation angle of the shaft 30 or the shaft 31 (see FIG. 3). When the sensor is attached, the control device of the inspection device 56 operates and stops the electric motor 32 (see FIG. 5) based on the signal from the sensor, as in the case of the first embodiment. For example, when the container 14 is set or when the discharge is finished, the control device sets the positions of the cam 21 and the cam 22 to the positions shown in FIG. 8A based on the signal from the sensor. .

  In Embodiment 1 and 2 demonstrated above, the shape of the cam which presses the container 14 is not specifically limited. The cam may be a cam whose cross section has a shape other than a circle, generally a tangential cam, a mushroom cam, or a triangular cam.

  In the first and second embodiments, a crank-shaped member can be used as the two pressing members or one pressing member in addition to the cam. In this case, the pressing member includes a bearing that is rotatably attached to the rotating shaft, a contact roller, and a stay that protrudes from the bearing and holds the roller in a state parallel to the rotating shaft. Further, the roller is attached to the stay so as to be rotatable, and rotates by friction with the stay when contacting the container. A concave portion is provided on the contact surface of the roller.

  Furthermore, in Embodiment 1 and 2, the cross-sectional shape of the recessed part formed in a press member is not limited to the shape shown by FIG.1 and FIG.5, For example, a rectangle, a triangle, etc. may be sufficient. Further, the concave portion may be formed by two convex portions provided on the contact surface of the pressing member. For example, in FIG. 1, when two ring-shaped convex portions are provided in parallel along the outer periphery on the contact surface of the cam 1, the concave portion 2 is formed between the two ring-shaped convex portions. .

  Furthermore, the contact surface of the pressing member is not limited to the aspect in which the concave portion is formed, and may be formed so that the container 14 can be positioned. For example, a plurality of protrusions or an adhesive material layer may be formed on the contact surface of the pressing member.

  In the first and second embodiments, the material for forming the container to be pressed is not particularly limited. Examples of the forming material include a flexible material such as a resin material and a rubber material. Furthermore, in addition to a material having flexibility, a material that is plastically deformed by pressing, such as a metal foil, may be used. Further, the viscosity of the fluid filled in the container is not limited.

  Furthermore, in Embodiments 1 and 2, the pressing member directly pressed the container 14, but, for example, as shown in FIG. 11, between the container 14 and the pressing members (cams 21 and 23), It is also possible to adopt a mode in which another member is arranged. FIG. 11 is a diagram showing another example of the ejection device that can be used in the first and second embodiments of the present invention.

  In the example shown in FIG. 11, a pair of arm members 71 and 72 are disposed between the cam 21 and the cam 22. One end of each of the arm members 71 and 72 is attached to a shaft 73 provided on the frame 25 in a rotatable state. The shaft 73 is attached to the frame 25 along the normal line of the frame 25. A coil spring 74 is disposed between the arm member 71 and the arm member 72.

  If the configuration shown in FIG. 11 is used, the area of the pressed portion of the container 14 to be pressed can be increased compared to the example shown in FIG. Can do. Further, in the configuration shown in FIG. 11, the shape of the arm members 71 and 72 can be appropriately set according to the size and shape of the container 14, so that efficient pressing can be achieved also from this point.

  Furthermore, according to the configuration shown in FIG. 11, unlike the example shown in FIG. 5, the cams 21 and 23 do not slide on the extrusion portion 15 of the container 14, and the movement of the pressing point is suppressed in the extrusion portion 15. Has been. For this reason, the configuration shown in FIG. 11 is not deformed due to the pressing of the extruding portion 15, for example, the shape of the extruding portion 15 is not restored from the shape at the time of discharge to the original shape as compared with the example shown in FIG. Moreover, it can suppress that the surface of the extrusion part 15 waves.

  In the first and second embodiments, elastic members such as the coil springs 27, 40, and 74 are used. In the present invention, a spring other than the coil spring, for example, a leaf spring can be used as the elastic member.

  Furthermore, in Embodiments 1 and 2, a cam 80 shown in FIG. 12 can also be used. FIG. 12 is a view showing an example of a cam that can be used in the discharge device of the present invention, FIG. 12 (a) shows the front of the cam, and FIG. 12 (b) shows a cutting line in FIG. 12 (a). A cross section obtained by cutting the cam along AA ′ is shown.

  As shown in FIG. 12, the cam 80 includes a core member 81, bearings 82 and 83, and a cover member 85. The core member 81 is formed in a cylindrical shape and is fitted into the inner rings of the bearings 82 and 83. Reference numeral 84 denotes a ring-like spacer for adjusting the positions of the bearings 82 and 83. A shaft hole 87 is provided at a position away from the central axis of the core member 81. A shaft serving as the rotation center of the cam 80 is fitted into the shaft hole 87, and the cam 80 rotates together with this shaft.

  The outer rings of the bearings 82 and 83 and the outer peripheral surface of the spacer 84 are covered with a cylindrical cover member 85. A recess 86 is formed on the side surface of the cover member 85. The concave portion 86 functions in the same manner as the concave portion 2 shown in FIG. 1 and the concave portion 22 and the concave portion 24 shown in FIG.

  According to such a configuration, the frictional force generated when the cam 80 slides on the container or the tube is reduced by the bearings 82 and 83. And generation | occurrence | production of the situation which the extrusion part 15 of the container 14 deform | transforms more than necessary with a frictional force is suppressed. Specifically, by using the cam 80, for example, it is possible to prevent the shape of the extruded portion 15 from being restored to the original shape from the shape at the time of discharge, and the surface of the extruded portion 15 from being wavy. Is done. In addition, the generation of noise when the cam 80 contacts the container 14 is suppressed by reducing the frictional force.

  The same effect can be obtained by using a cam having a contact surface made of a material having a low coefficient of friction such as polyolefin, instead of using the cam 80 having a bearing. Furthermore, if the cover member 85 of the cam 80 described above is made of the material having the low friction coefficient, a further effect of reducing the frictional force can be obtained.

(Embodiment 3)
Next, the inspection apparatus in Embodiment 3 of this invention is demonstrated using FIG. However, the inspection apparatus according to the third embodiment is configured in the same manner as the inspection apparatus 50 according to the first embodiment except for the configuration of the ejection device 90. Therefore, the configuration of the discharge device 90 will be mainly described below.

  FIG. 13 is a perspective view showing the configuration of the ejection device that is a part of the inspection device according to Embodiment 3 of the present invention. The discharge device 90 shown in FIG. 13 is also used to discharge the fluid inside the container 14, similarly to the discharge device 10 shown in the first embodiment. Moreover, the container 14 is attached to the tray 19 similarly to the example shown in FIG.1 and FIG.2 in Embodiment 1. FIG. The tray 19 is held by the guide rails 12 and 13. As described above, the discharge device 90 uses the container 14 shown in FIGS. 1 and 2 as a pressing target, similarly to the discharge device 10 shown in the first embodiment. However, it differs from the discharge device 10 in the following points.

  As shown in FIG. 13, in the third embodiment, the pressing member 91 and the pressing member 92 are not cams but block-shaped members. The pressing member 91 and the pressing member 92 move in opposite directions to sandwich the container 14. Moreover, the movement of the pressing member 91 and the pressing member 92 is performed by the link mechanism.

  The link mechanism includes long arms 93 and 94, short arms 95 and 96, a disc 97, and a connecting arm 98. The pressing member 91 is fixed to the tip of the long arm 93, and the pressing member 92 is fixed to the tip of the long arm 94. The long arm 93 and the long arm 94 are connected to each other at a central portion so as to be rotatable by a shaft 100.

  The shaft 100 that connects the long arm 93 and the long arm 94 is fixed along the normal line of the top plate portion 106 by a bearing portion 108 provided on the top plate portion 106 of the frame 105. For this reason, the pressing member 91 and the pressing member 92 move on a circular orbit centering on the shaft 100 in a state parallel to the top plate portion 106.

  Further, the frame 105 includes a side plate portion 107 provided perpendicular to the top plate portion 106. And the guide rails 12 and 13 are attached to the side plate part 107 so that the extrusion part 15 of the container 14 is located on the circular track of the pressing member 91 and the pressing member 92. Therefore, when the long arms 93 and 94 rotate, the pressing members 91 and 92 press the container 14.

  Further, the rear end of the long arm 93 is connected to the tip of the short arm 95 through a shaft 101 in a rotatable state. The rear end of the long arm 94 is connected to the tip of the short arm 96 through a shaft 102 in a rotatable state. The rear end of the short arm 95 and the rear end of the short arm 96 are both connected to the rear end of the connecting arm 98 through a shaft 103 in a rotatable state. Further, the shaft 101, the shaft 102, and the shaft 103 are also provided along the normal line of the top plate portion 106, similarly to the shaft 100.

  Further, the disc 97 is rotatably attached to the top plate portion 106 and rotates by receiving the power of the electric motor 99. Further, the tip of the connecting arm 98 is connected to the disk 97 by a shaft 104 in a rotatable state. However, the connection location of the disc 97 and the connecting arm 98 is a location away from the center of rotation of the disc 97, and the disc 97 functions as a crank. The shaft 104 is also provided along the normal line of the top plate portion 106.

  With this configuration, when the electric motor 99 rotates the disk 97, the connecting arm 98 is pushed out (or pulled), and the rear ends of the short arm 95, the short arm 96, and the connecting arm 98 move on a straight line. . Then, a rotational motion is given to the long arms 93 and 94.

  In particular, when the rear ends of the short arm 95, the short arm 96, and the connecting arm 98 move away from the container 14, the pressing member 91 and the pressing member 92 move in opposite directions to press the container 14. In the third embodiment, the container 14 is pressed using a link mechanism.

  As described above, the discharge device 90 can discharge a fixed amount of fluid with a simple configuration, similarly to the discharge device 10 shown in the first embodiment. Therefore, even when the inspection apparatus is configured using the discharge device 90, the increase in size and cost of the apparatus are suppressed. Further, in the discharge device 90, the discharge amount can be easily controlled by adjusting the rotation angle and the rotation speed of the disc 97. Further, the discharge device 90 can cope with a change in the type of fluid to be discharged by replacing the container 14.

  Also in the third embodiment, as in the first and second embodiments, the contact surface of the pressing member 91 is provided with a recess 91a, and the contact surface of the pressing member 92 is provided with a recess 92a. Yes. Further, the concave portion 91a and the concave portion 92a are formed in a groove shape extending in the vertical direction, and in a direction perpendicular to the pressing direction of the pressing member 91 and the pressing member 92, specifically, in a radial direction of a circular orbit drawn by these pressing members. The position of the container 14 is regulated. Therefore, also in the case of this Embodiment 3, generation | occurrence | production of the press defect by the position shift of the container 14 is suppressed.

  The third embodiment is not limited to the example shown in FIG. For example, the third embodiment may be a mode in which the rear ends of the short arms 95 and 96 are moved not by the connecting arm 98 and the disc 97 but by a hydraulic cylinder or an air cylinder.

(Embodiment 4)
Next, an inspection apparatus according to Embodiment 4 of the present invention will be described with reference to FIG. However, the inspection apparatus according to the fourth embodiment is configured in the same manner as the inspection apparatus 50 according to the first embodiment except for the configuration of the ejection device 110. Therefore, hereinafter, the configuration of the ejection device 110 will be mainly described.

  FIG. 14 is a perspective view showing a configuration of a discharge device that is a part of an inspection device according to Embodiment 4 of the present invention. The discharge device 110 according to the fourth embodiment shown in FIG. 14 is also used to discharge the fluid in the container 14 as with the discharge device 10 according to the first embodiment. Moreover, the container 14 is attached to the tray 19 similarly to the example shown in FIG.1 and FIG.2 in Embodiment 1. FIG. The tray 19 is held by the guide rails 12 and 13. As described above, the discharge device 110 uses the container 14 shown in FIGS. 1 and 2 as a pressing target, similarly to the discharge device 10 shown in the first embodiment. However, it differs from the discharge device 10 in the following points.

  As shown in FIG. 14, in the fourth embodiment, the pressing member 111 and the pressing member 112 are not cams but block-like members, as in the third embodiment. Further, the pressing member 111 and the pressing member 112 move in the opposite directions and sandwich the container 14 as in the third embodiment. The pressing member 111 and the pressing member 112 are moved by a rack and pinion mechanism instead of the link mechanism shown in FIG. 13 in the third embodiment.

  The rack and pinion mechanism includes racks 113 and 114 that can move in the horizontal direction, and a gear 115, and is attached to a plate-like frame 119. Both the rack 113 and the rack 114 mesh with the gear 115. A rib 113a is provided on the back surface of the rack 113 along the tooth arrangement direction. Similarly, ribs 114a are also provided on the back surface of the rack 114 along the tooth arrangement direction.

  The frame 119 is provided with a guide groove 117 extending in the horizontal direction and a guide groove 118 extending in the horizontal direction. Among these, the guide groove 117 is provided at a position above the gear 115, and the rib 113 a of the rack 113 is inserted therein. The rack 113 can move in the horizontal direction above the gear 115. The guide groove 118 is provided at a position below the gear 115, and the rib 114a of the rack 114 is inserted into the guide groove 118. The rack 114 can move horizontally below the gear 115.

  The gear 115 is fixed to the shaft 116 of the electric motor 120 attached to the back surface of the frame 119. Furthermore, the teeth of the rack 113 and the teeth of the rack 114 mesh with the gear 115 in a state of facing each other. The pressing member 111 is fixed to the left end of the rack 113 in the drawing, and the pressing member 112 is fixed to the right end of the rack 114 in the drawing.

  Therefore, when the gear 115 is rotationally driven by the electric motor 120, the rack 113 and the rack 114 linearly move in opposite directions. Further, the pressing member 111 and the pressing member 112 move on a linear track. Further, the guide rails 12 and 13 holding the tray 19 are attached to the frame 119 so that the pushing portion 15 of the container 14 is positioned on the linear track of the pressing member 111 and the pressing member 112.

  Therefore, in the fourth embodiment, when the electric motor 120 rotates the gear 115 clockwise (in the direction of the arrow in the figure), the pressing member 111 and the pressing member 112 move in a direction approaching each other, and press the container 14. To do. In the fourth embodiment, the container 14 is pressed using a rack and pinion mechanism.

  In this manner, the discharge device 110 can discharge a fixed amount of fluid with a simple configuration, similarly to the discharge device 10 shown in the first embodiment. Therefore, even when the inspection apparatus is configured using the ejection device 110, the increase in size and cost of the apparatus are suppressed. In the discharge device 110, the discharge amount can be easily controlled by adjusting the rotation speed of the gear 115. Further, the discharge device 110 can cope with the change of the type of fluid to be discharged by replacing the container 14.

  Also, in the fourth embodiment, similarly to the first and second embodiments, the contact surface of the pressing member 111 is provided with a recess 111a, and the contact surface of the pressing member 112 is provided with a recess 112a. Yes. Further, the concave portion 111a and the concave portion 112a are formed in a groove shape extending in the vertical direction, and the position of the container 14 in the direction perpendicular to the pressing direction of the pressing member 111 and the pressing member 112, specifically in the normal direction of the frame 119. Is regulated. Therefore, also in the case of this Embodiment 4, generation | occurrence | production of the press defect by the position shift of the container 14 is suppressed.

  The fourth embodiment is not limited to the example shown in FIG. For example, the fourth embodiment may be a mode in which the pressing members 111 and 112 move on a linear track by a crank mechanism, a hydraulic cylinder, or an air cylinder instead of the rack and pinion mechanism.

  In the first to fourth embodiments, the inspection apparatus causes the ejection device to eject the analysis tool 60. However, in the present invention, the ejection target of the ejection device is not particularly limited. Absent. In the inspection apparatus of the present invention, the discharge device that constitutes the discharge apparatus can also discharge other than the analysis tool 60 shown in FIG.

  Examples of analysis tools other than the analysis tool 60 shown in FIG. 4 include test pieces, urine test papers, various biosensors, dry multilayer analysis films, reaction vessels, reaction cells, and the like used in the immunochromatography method. The dry multilayer analysis film is an analysis tool for performing quantitative analysis or qualitative analysis on biochemical components in a biological sample such as blood, plasma, serum, or urine. If a dry-type multilayer analysis film is used, the content of biochemical components, the activity value, or the content of formed components in the ecological sample can be determined. In the above reaction vessel and reaction cell, a liquid reagent is used.

  Moreover, in the said Embodiment 1- Embodiment 4, although the chemical | medical solution, infusion, a liquid reagent, a biological sample, etc. were mentioned as the fluid stored in the inside of a container, this invention is limited to this. Is not to be done. In the present invention, drinks, foods, various waste waters, soil, rainwater, river water, etc. can also be used as the fluid. Furthermore, the inspection apparatus of the present invention may be an apparatus for inspecting beverages, foods, various wastewater, soil, rainwater, river water, and the like. The “inspection apparatus” in the present invention can be widely interpreted, and the “inspection apparatus” includes various analysis apparatuses.

  As described above, the present invention is useful for discharging a fluid (for example, a chemical solution or a liquid sample) inside a container. The discharge device of the present invention and the inspection device using the same have industrial applicability.

FIG. 1 is a perspective view showing a configuration of a discharge device that is a part of an inspection apparatus according to Embodiment 1 of the present invention. FIG. 2 is a diagram illustrating a usage state of the discharge device illustrated in FIG. 1. FIG. 3 is a perspective view showing an internal configuration of the inspection apparatus according to Embodiment 1 of the present invention. FIG. 4 is a diagram showing an analysis tool used in the inspection apparatus shown in FIG. FIG. 5 is an exploded perspective view showing the configuration of the ejection device that is a part of the inspection device according to Embodiment 2 of the present invention. FIG. 6 is an assembly diagram showing a state in which the components shown in FIG. 5 are assembled. FIG. 7 is an exploded perspective view specifically showing the clutch mechanism shown in FIG. FIG. 8 is a diagram illustrating the operation of the ejection device according to the embodiment of the present invention. FIG. 8A and FIG. 8B each show a series of main operating states. FIG. 9 is a diagram illustrating the operation of the ejection device according to the embodiment of the present invention. 9A and 9B show a series of main operating states after the operating state shown in FIG. 8B. FIG. 10 is a perspective view showing the internal configuration of the inspection apparatus according to Embodiment 2 of the present invention. FIG. 11 is a diagram showing another example of the ejection device that can be used in the first and second embodiments of the present invention. FIG. 12 is a view showing an example of a cam that can be used in the discharge device of the present invention, FIG. 12 (a) shows the front of the cam, and FIG. 12 (b) shows a cutting line in FIG. 12 (a). A cross section obtained by cutting the cam along AA ′ is shown. FIG. 13 is a perspective view showing the configuration of the ejection device that is a part of the inspection device according to Embodiment 3 of the present invention. FIG. 14 is a perspective view showing a configuration of a discharge device that is a part of an inspection device according to Embodiment 4 of the present invention.

Explanation of symbols

1 Pressing member (cam)
2 Concave portion provided in cam 3 Pressing member (supporting member)
4 Recessed portion provided in support member 5 Frame 6, 7 Gear 8 Motor shaft 9 Cam shaft 10 Discharge device (Embodiment 1)
DESCRIPTION OF SYMBOLS 11 Electric motor 12, 13 Guide rail 12a, 13a Groove provided in guide rail 14 Container 15 Extrusion part 16 Main body tube 17 Ring 18 Discharge nozzle 19 Tray 19a Recessed part provided in tray 19b Through-hole provided in tray 20 Discharge device (Embodiment 2)
21, 23 Pressing member (cam)
22, 24 Recessed portion provided on cam 25 Frame 26, 27, 28 Gear 29 Motor shaft 30, 31 Cam shaft 32 Motor 33 Cover member 34 Cover portion 35 Base portion 35a Bottom surface 35b Step difference 36 Connection portion 37 Coil spring 38 Provided on cam Protrusion 39 Clutch mechanism 40 Coil spring 41 Stopper 42 Fluid 43 雫 44 L-shaped plate 44a, 44b L-shaped plate through hole 50 Inspection device (Embodiment 1)
51 Rotating Table 52 Light Receiving Unit 53 Light Source Unit 54 Connector 55 Analyzer 56 Inspection Device (Embodiment 2)
60 Analysis tool 61 Transparent substrate 62 Transparent cover 63 Storage part 64 Cell 65 Flow path 66 Supply port 71, 72 Arm member 73 Shaft 74 Coil spring 80 Cam 81 Core member 82, 83 Bearing 84 Spacer 85 Cover member 86 Recess 87 Shaft hole 90 Discharge Apparatus (Embodiment 3)
91, 92 Press member 93, 94 Long arm 95, 96 Short arm 97 Disc 98 Connecting arm 99 Electric motor 100, 101, 102, 103, 104 Shaft 105 Frame 106 Top plate portion 107 Side plate portion 108 Bearing portion 110 Discharge device (implementation) Form 4)
111, 112 Press member 113, 114 Rack 113a, 114a Rib 115 provided on the back of the rack 115 Gear 116 Motor shaft 117, 118 Guide groove 119 Frame 120 Motor

Claims (9)

An inspection apparatus comprising a discharge device for discharging a fluid inside a container having a discharge port,
The discharge device includes a first pressing member that presses the container, and a second pressing member that presses the container at a position facing the first pressing member. Inspection device.   The inspection apparatus according to claim 1, wherein a contact surface of at least one of the first pressing member and the second pressing member with the container is formed so that the container can be positioned.   The inspection apparatus according to claim 1, wherein a concave portion is formed on a contact surface of at least one of the first pressing member and the second pressing member with the container. The fluid inside the container is a liquid containing a solid component,
The first pressing member and the second pressing member are arranged so that a gap is formed between them when the container is pressed.
The gap is set so that the inner surface of the portion pressed by the first pressing member and the inner surface of the portion pressed by the second pressing member do not contact each other in the container. The inspection apparatus according to claim 1.   The inspection apparatus according to claim 1, wherein the first pressing member is a cam capable of intermittently pressing the container. The second pressing member is a second cam capable of intermittently pressing the container;
The inspection apparatus according to claim 5, wherein the second cam is disposed so that a rotation axis thereof is parallel to the rotation axis of the cam, and rotates in conjunction with the rotation of the cam. The discharge device further comprises a cover member that can be positioned vertically below the discharge port,
The cover member moves in a direction approaching the discharge port when the distance between the first pressing member and the second pressing member tends to increase, and the first pressing member and the second pressing member The inspection apparatus according to claim 5 or 6, wherein when the distance to the pressing member tends to be shortened, the inspection apparatus moves in a direction away from the discharge port. The cover member is attached to a rotating shaft of the cam serving as the first pressing member or the second pressing member via a clutch mechanism,
The inspection apparatus according to claim 7, wherein the clutch mechanism connects the cover member and the cam or releases the connection according to a rotation angle of the cam and causes the cover member to move. .   The inspection apparatus according to any one of claims 1 to 4, wherein each of the first pressing member and the second pressing member moves in an opposing direction and sandwiches the container.

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