JPH0720554B2 - Opening / closing device for reagent bottle table - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reagent bottle table opening / closing device, and more particularly to a reagent bottle table opening / closing device capable of easily opening and closing a cover of a case.

[Prior Art] In an automatic analyzer capable of performing multi-purpose and multi-item measurement, such as biochemical analysis, immunological analysis, blood drug test analysis, and electrolyte analysis, a reagent bottle corresponding to the measurement item is used as a reagent. In order to transfer to a suction position, a reagent bottle table is used which is housed in a case and whose forward and reverse rotations are controlled via bearings at both ends of a fixed shaft.

The reagent in the reagent bottle is added to the reaction tube after performing a predetermined operation to cause a chemical reaction with the sample, and the colorimetric method or the like is used to detect the reaction state.

In the above-mentioned automatic analyzer, many kinds of reagent bottles are stored on the reagent bottle table in order to measure many kinds of chemical components.

The ambient temperature at the place where a normal automatic analyzer is installed is about 37.
The temperature may reach about 0 ° C., and storage of the reagent in such an environment not only affects the chemical reaction but also causes deterioration of the reagent.

Therefore, conventionally, a reagent bottle table having a cooling device is used to cool the reagents stored on the reagent bottle table as described above. Since the reagent is affected by the temperature, it is necessary to adjust the temperature of the reagent bottle table accurately, and particularly when an enzyme-based reaction reagent is used, it is necessary to adjust the temperature to about 2 to 10 ° C. On the other hand, with a certain reaction reagent, the activity may be lowered or crystals may be precipitated at low temperature, so that a room temperature storage is necessary to avoid them. In this way, the reagent bottle table is housed in the case, and when exchanging the reagent bottle as needed, the case is opened and closed, and the reagent bottle table is sequentially rotated to replace the reagent bottle. ing. Further, the opening and closing of the case is performed by attaching and detaching the ceiling plate of the case to the case.

The inventors have already proposed a reagent bottle table that allows accurate temperature adjustment of reagents on the same reagent bottle table in different temperature regions corresponding to different properties of many kinds of reagents. (See, for example, Japanese Patent Application No. 61-38603).

[Problems to be Solved by the Invention] However, in the above-mentioned conventional reagent bottle table opening / closing device, when the reagent bottle is replaced as the reagent is consumed, the entire ceiling plate of the case is detached from the case each time. Also, since it is opened and closed by mounting it, it requires a surrounding space to facilitate opening and closing operations, and since the handle is provided on the ceiling plate etc., a flat surface should be used when folding the handle. There is a problem that a structure for obtaining is required and the structure is complicated.

Further, since the whole ceiling plate is opened and closed, the cold air in the case that is kept cold is discharged to the outside, which causes a problem of thermal loss of the cold air.

The present invention solves such conventional problems,
The cover of the case can be easily opened and closed from the outside, and when opening and closing, the release of cold air in the case to the outside is significantly reduced. It is an object of the present invention to provide an excellent reagent bottle table opening / closing device in which a flat portion is formed as a part of a casing.

[Means for Solving the Problems] In order to achieve the above object, the present invention is a reagent bottle that is housed in a case and rotates forward and backward through bearings at both ends of a fixed shaft to house a plurality of reagent bottles. In the table opening / closing device, a cover is provided on an upper portion of the ceiling plate of the case, and a fastener that locks and unlocks by a pressing force is provided, and the cover can be opened and closed.
Provided on the top of the ceiling plate of the case is a cover to which a fastener that locks and unlocks by pressing force is attached, the cover can be opened and closed, and the cover of the case is fitted to the opening of the casing of the analyzer. In addition, the cover is provided with a buffer damper near the fulcrum of the cover.

[Operation] The present invention having the above-described configuration has the following operations. That is, since the pressing force can be applied to the clasp with a fingertip or the like to facilitate opening and closing of the cover of the case, the time for replacing the reagent bottle can be shortened, and a buffer damper can be used when opening and closing the cover. Is activated, it can be made smooth without impact. Further, when the cover is opened and closed, the opening area can be reduced, so that discharge of cold air to the outside can be significantly reduced.

Also, since the handle of the cover is omitted, the cover can form a flat part as a part of the casing of the automatic analyzer, so that the entire automatic analyzer can have a structure with a simple appearance. Becomes

[Embodiment] An embodiment of the present invention will be described in detail below with reference to the drawings.

1 to 3 show the structure of an embodiment of the present invention.

In FIG. 1, reference numeral 12 is a fixed shaft provided in the central portion of the reagent bottle table 20, and the fixed shaft 12 has a hollow portion 14 and forms a cooling passage for cooling air. Reagent bottle table 20
Has a cylindrical side plate 20a, a disk-shaped bottom plate 20b, and a cylindrical inner plate 20c, and has an annular shape.
Is supported by both ends of the fixed shaft 12. Further, an internal gear 22 is provided on the bottom plate 20b, meshes with the gear 24, and the forward / reverse rotation control of the drive device 30 controls the reagent bottle table.
The rotation of the fixed shaft 12 around the fixed shaft 12 is intermittently performed at regular timing by forward and reverse rotation.

The case 42 accommodates the reagent bottle table 20, surrounds the outer periphery of the reagent bottle table 20, and includes a side plate 42a, a bottom plate 42b, and a ceiling plate 42c, and the bottom plate 42b is fastened to the fixed shaft 12 and fixedly used. The ceiling plate 42c is partially provided with an opening 42e, and a cover for covering the opening 42e is provided on the ceiling plate 42c.
The cover 43 is provided with a fastener 44 at the peripheral edge of the cover 43, and a fulcrum 42 is provided on the opposite side of the peripheral edge of the cover 43.
d is provided, and the cover 43 is adapted to open and close around the fulcrum 42d. A buffer damper 47 is attached to the cover 43 near the fulcrum 42d via a connecting member 48 on the upper portion of the ceiling plate 42c, and the shock due to opening and closing of the cover 43 is prevented by utilizing the resistance force due to air pressure in the cylinder. There is.

Further, a receiving metal fitting 45 is provided at the peripheral edge of the ceiling plate 42c,
When the cover 43 is closed, the cover 43 is fitted with the tip of the fastener 44 so that the cover 43 can be surely closed.

When a pressing force such as a fingertip is applied to the peripheral edge of the closed cover 43, the fastener 44 is unlocked, and the cover 43 is opened around the fulcrum 42d according to the operating range of the fastener 44, and then continued. A fingertip is applied to the peripheral edge of the opened cover 43 to raise the cover 43 in a substantially vertical direction. This buffer damper 47 operates to cover without shock.
43 standing up.

Thus, the reagent bottles 50 and 52 stored on the reagent bottle table 20 are sequentially rotated to exchange the new reagent bottles 50 and 52, and when the exchange is completed, the operation opposite to the above is performed. Place your fingertips on the periphery of the cover 43 and cover 43
And the tip of the fastener 44 comes into contact with the receiving fitting 45 and is positioned within the operating range of the fastener 44. Subsequently, when a pressing force is applied to the peripheral edge of the cover 43 with a fingertip or the like, the fastener 44 is locked and the cover 43 is opened at the opening 42e of the ceiling plate 42.
Close down. Also in this case, the buffer damper 47 operates to cover the cover 43 without causing an impact.

Further, 70 is a part of the casing of the automatic analyzer and is shown by a virtual line, and 72 is an opening of the casing. Since the cover 43 is positioned so as to be fitted into the opening 72 when the cover 43 is closed by imaginary lines, the surface of the cover 43 may form a flat portion as a part of the casing 70. Therefore, the entire automatic analyzer can be configured to have a simple appearance without looking at the reagent bottle table 20 from the outside.

Incidentally, after the reagent bottle table 20 is rotated, the reagent bottles 50 and 52 corresponding to the measurement items are transferred to the vicinity of the pipette device (not shown), and then the pipette device is opened in the ceiling plate 42c and the reagent bottle. A predetermined amount of reagent is sucked from the respective suction ports 51, 53 of 50, 52 and dispensed into the corresponding reaction tube.

FIG. 2 shows the plan view of FIG. 1, and a fan-shaped opening 42e is provided in a part of the ceiling plate 42c to replace the reagent bottles 50 and 52, respectively. The covers 43 are provided on both sides on the upper part of the ceiling plate 42c by hinges or the like, and the respective 42d serve as fulcrums. Further, an impact damper 47 is provided above the ceiling plate 42c, and is connected to a member of the cover 43 near the fulcrum 42d via a connecting member 48.

FIG. 3 is a perspective view of an essential part in the upper part of FIG. 1, and when the cover 43 is closed, the outer edge of the cover 43 is fitted so as to match the inner edge of the opening 72 of the casing 70. It is positioned so that the surface of the cover 43 forms a flat portion as a part of the casing 70.

As described above, according to the above-described embodiment, since the pressing force is applied to the fastener 44 by the fingertip or the like, the opening and closing of the cover 43 of the case 42 can be easily locked and unlocked, so that the reagent bottles 50 and 52 can be replaced. The time can be shortened. Further, when the cover 43 is opened and closed, the buffer damper 47 operates, so that the cover 43 can be smoothly operated without any impact.

Further, when opening and closing the cover 43, the opening area of the ceiling plate 42c can be reduced, so that the discharge of cold air to the outside can be significantly reduced.

Further, since the cover 43 is fitted in the opening 72, the cover 43 can form a flat portion as a part of the casing 70 of the analyzer, so that the entire automatic analyzer has a simple appearance. Can be

[Effects of the Invention] As is apparent from the above-described embodiment, the present invention enables the opening and closing of the cover of the case to be easily operated from the outside, and when the opening and closing operation is performed, the release of cold air in the case to the outside is significantly suppressed. In addition to reducing the number of handles, the handle of the cover can be omitted, and the flat portion can be formed as a part of the casing of the automatic analysis device, and the entire automatic analysis device can have a simple appearance. Produce an effect.

[Brief description of drawings]

FIG. 1 is a sectional side view of an opening / closing device for a reagent bottle table according to an embodiment of the present invention, FIG. 2 is a plan view of the device, and FIG.
The figure is a perspective view of an essential part of the apparatus. 12 …… fixed shaft, 20 …… reagent bottle table 36,36 …… bearing, 42 …… case 42c …… ceiling plate, 42d …… fulcrum 43 …… cover, 44 …… clasp 47 …… relaxation damper

Claims (4)

[Claims] 1. An opening / closing device for a reagent bottle table, which is housed in a case and rotates forward and backward through bearings at both ends of a fixed shaft to accommodate a plurality of reagent bottles, and a pressing force is applied to an upper portion of a ceiling plate of the case. An opening / closing device for a reagent bottle table, which is provided with a cover to which a fastener for locking and unlocking is provided, and the cover can be opened and closed. 2. The reagent bottle table opening / closing device according to claim 1, wherein the cover is provided with a buffer damper near a fulcrum of the cover. 3. An opening / closing device for a reagent bottle table, which is housed in a case and rotates forward and backward through bearings at both ends of a fixed shaft to accommodate a plurality of reagent bottles, and a pressing force is applied to an upper portion of a ceiling plate of the case. Is provided with a cover to which a fastener for locking and unlocking is provided, the cover is openable and closable, and the cover of the case is fitted in the opening of the casing of the analyzer. Switchgear. 4. The reagent bottle table opening / closing device according to claim 2, wherein the cover is provided with a buffer damper near a fulcrum of the cover.