Vessel holder fixed with a conical screw

Abstract

The present invention relates to a vessel holder fixed with a conical screw used in biological microscopes and the like. More specifically, the present invention relates to a vessel holder fixed with an improved conical screw that allows the vessel holder to be in close contact with the top surface of a stage with only one screw and at the same time allows the vessel holder to be accurately fixed to a reference side without changing its position due to shock vibration, thereby improving convenience in use and efficiency and accuracy of cell observation.

Description

Technical Field

[0001] The present invention relates to a vessel holder fixed by a conical screw used in a biological microscope or the like. More specifically, the vessel holder is made to closely adhere to the upper surface of the stage with only one screw, and at the same time, it is accurately fixed to the reference side surface without changing its position against impact vibration, improving the convenience in use, the efficiency and accuracy of cell observation. The present invention relates to a vessel holder fixed by an improved conical screw.

Background Art

[0002] Generally, a biological microscope is a microscope for observing transparent samples such as organisms. When light is transmitted from below or above a vessel holder, light and dark are formed in the image due to the difference in absorption of each part of the sample.

[0003] At this time, the vessel holder is an adapter for fixing various forms of plastic ware for observing cells to an observation stage.

[0004] Such a vessel holder is generally fixed by a method of fastening screws at the four corners or diagonal corners in order to closely adhere to the upper surface of the stage as shown in the example of FIG. 1.

[0005] By the way, although such a structure has the advantage that the upper surface of the stage and the bottom surface of the vessel holder are completely in close contact, it is troublesome because it is necessary to fasten the screws four times at each corner. Especially when the protruding screw head protrudes into the upper space of the vessel holder, there is also a disadvantage that the available space becomes narrow due to interference with the screw head.

[0006] Moreover, when applying it to equipment that must utilize the reference side surface, there is also the inconvenience that the user must directly press and attach the vessel holder to the reference side surface.

[0007] To improve this, as shown in the example of FIG. 2, a method is disclosed in which it is placed in a hole that matches the outer contour size of the vessel holder without fastening the screw.

[0008] However, this structure is vulnerable to external vibrations and impacts, so there is a drawback that the vessel holder may deviate from the position where it was initially provided, and thus the observation position has to be searched for again.

[0009] In addition, since the magnification of the observation is very high, there is a drawback that it is very difficult and troublesome to search for the observation position again.

[0010] Also, since the upper surface of the stage and the bottom surface of the vessel holder are not completely in close contact, a problem of floating also occurs.

[0011] As another example, although not shown, there are also examples of fixing with a clip or fixing with a spring from the side.

[0012] However, when fixing with a clip, since the clip as a fixing device protrudes above the vessel holder, the same problem as when the screw head protrudes as described above occurs. When fixing with a spring, the problem of protruding above the vessel holder is solved, but the problem that the upper surface of the stage and the bottom surface of the vessel holder are not completely in close contact and float cannot still be solved.

Prior Art Documents

Patent Documents

[0013]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0014] The present invention has been created in consideration of various problems in the prior art as described above and aims to solve them. The vessel holder is made to adhere closely to the upper surface of the stage with only one screw, and at the same time, it is accurately fixed to the reference side surface without changing its position against impact vibration. The main purpose is to provide a vessel holder fixed with a conical screw that is improved to enhance the convenience in use, the efficiency, and the accuracy of cell observation.

Means for Solving the Problems

[0015] The present invention provides a means for achieving the above object. In a stage assembly including a stage having a holder seating groove and a vessel holder seated in the holder seating groove; one side surface of the holder seating groove serves as a reference side surface, a wedge insertion groove is formed in the reference side surface, and a screw hole is formed on the holder seating groove on the opposite side of the reference side surface; a protruding wedge inserted into the wedge insertion groove is formed at one end of the vessel holder, and a screw hole is formed on the vessel holder on the opposite side of the protruding wedge; a fixing screw is fastened to the screw hole and the screw hole. The present invention provides a vessel holder fixed with a conical screw. At this time, the screw hole is conical, the lower part of the screw head of the fixing screw is formed in a conical shape, and even when the protruding wedge 240 is completely inserted into the wedge insertion groove 130, the separation distance D does not become "0", so it is not completely matched and assembled, and the assembly is completed at an intermediate point during the matching process, which is also a feature thereof.

[0016] Also, the wedge insertion groove is in an "∠" shape, and the protruding wedge has a shape corresponding to the wedge insertion groove, which is also a feature thereof.

[0017] Further, both ends of the protruding wedge are chamfered in an oblique direction to form inclined surfaces, and the tip width of the protruding wedge is formed smaller than the width of the wedge insertion groove, which is also a feature thereof.

[0018] Further, a pressing base is further provided at a distance from the screw hole of the vessel holder, and the pressing base is axially fixed to the upper surface of the vessel holder and configured to be rotated within a certain angle range, which is also a feature thereof.

Advantages of the Invention

[0019] According to the present invention, the following effects can be obtained.

[0020] First, the vessel holder can be closely attached to the upper surface of the stage with only one screw, and at the same time, it can be accurately fixed to the reference side surface without changing its position against impact vibration.

[0021] Second, by reducing the number of screws from four to one, not only cost savings can be achieved, but also the space for the three protruding screw positions can be secured, so that relatively diverse plastic wares can be applied. Third, since screw fastening is frequent, it can be widely applied to fields where it is troublesome to fix products in their use.

[0022] Fourth, when applied to the vessel holder, it can also be directly applied to various application holders applied to the observation and test stages in addition to the cell imaging equipment.

[0023]

Brief Description of the Drawings

Brief Description of the Drawings

[0024]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Best Mode for Carrying Out the Invention

[0025] Hereinafter, preferred embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

[0026] Prior to the description of the present invention, the following specific structural or functional descriptions are merely exemplified for the purpose of explaining embodiments according to the concept of the present invention, and embodiments according to the concept of the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein.

[0027] Also, since embodiments according to the concept of the present invention can be modified in various ways and can have various forms, specific embodiments are illustrated in the drawings and described in detail herein. However, this is not intended to limit embodiments according to the concept of the present invention to a specific disclosed form, and it should be understood to include all modifications, equivalents or alternatives included in the spirit and technical scope of the present invention.

[0028] The vessel holder fixed by the conical screw according to the present invention has a form in which the vessel holder is firmly fixed to the upper surface of the stage using only one fixing screw so as to be automatically adhered to the reference side surface of the stage.

[0029] At this time, the single fixing screw used has a conical shape on the lower side of the screw head, and this shape has two functions.

[0030] The first function is a role peculiar to the screw that causes the peripheral portion of the fixing screw of the vessel holder to be in close contact with the upper surface of the stage.

[0031] The second function is to press and closely attach the conical shape below the screw head against the reference surface of the vessel holder.

[0032] Therefore, the screw hole of the vessel holder does not coincide with the center of the screw hole of the stage into which the fixing screw is incorporated, and is formed farther from the position of the screw hole in the direction in which the vessel holder is to be pressed against the reference surface.

[0033] As a result, when the fixing screw is passed through the screw hole of the vessel holder and fastened to the screw hole of the stage, since the centers of the screw hole of the vessel holder and the screw hole of the stage do not coincide, the conical shape below the screw head and the conical shape of the screw hole of the vessel holder come into line contact with each other in the direction of the reference surface.

[0034] At this time, the greater the fastening force of the fixing screw, the more strongly the inclined surface where the fixing screw and the screw hole are in contact presses the vessel holder against the reference surface.

[0035] And in order to fix the vessel holder, a protruding wedge is formed on one side surface of the vessel holder where the vessel holder abuts against the reference surface, and an "∠"-shaped wedge insertion groove is formed at the lower part of the reference surface so that the protruding wedge can be inserted therein.

[0036] Therefore, when pressure is applied in the direction of the reference surface of the stage in a state where the protruding wedge of the "∠"-shaped wedge insertion groove is arranged to be inserted, the vessel holder moves while the protruding wedge is inserted into the "∠"-shaped wedge insertion groove and is locked and fixed, and the vessel holder is closely and firmly fixed to the upper surface of the stage.

[0037] In this way, by using a single screw with a conical shape at the lower side of the screw head, the periphery of the screw is directly brought into close contact, and in the portion separated from the screw, the vessel holder can be completely closely fixed to the upper surface of the stage by the reference surface and the combination of the "wedge insertion groove - protruding wedge" in the shape of "∠".

[0038] Through such a process, not only is the essential function of the vessel holder being in close contact with the upper surface of the stage and in close contact with the reference side surface so that its position does not change due to impact vibration realized with just one screw, but also the four screws are reduced to one, saving the labor involved in assembly, eliminating the need for additional side fixing fixtures. As a result, not only cost reduction is achieved, but also an aesthetic gain due to the simplification and streamlining of the shape, and since a space for three protruding screws can be secured, advantages such as being able to relatively apply various plastic wares can also be obtained.

[0039] Furthermore, the present invention can also use two inclined surfaces to be in close contact with two reference surfaces (the upper surface of the stage, the reference side surface), and can be configured to be in close contact with three reference surfaces so as to be fixed in a completely correct position.

[0040] In particular, by changing the angle of the inclined surface, the degree of close contact can also be adjusted. Even if the inclination angles of the two parts in close contact do not exactly match, sliding contact and gliding occur along the inclined surface, so the fixing force can be maintained. As a result, a structure can be formed where parts can be pushed into a deep and narrow gap and only the part exposed to the outside can be tightened with a screw, or in fields where frequent screw fastening is required, it can be widely applied to reduce the labor of the user. In particular, when applied to a holder, it can also be applied to various application holders applied to observation and test stages in addition to cell imaging equipment.

[0041] More specifically, the vessel holder fixed with the conical screw according to the present invention includes a stage 100 and a vessel holder 200 coupled to the stage 100, as illustrated in FIGS. 3 to 5.

[0042] At this time, a holder seating groove 110 is formed on the stage 100 so that the vessel holder 200 can be seated.

[0043] In particular, one side of the holder seating groove 110 serves as a reference side surface 120.

[0044] Here, the reference side surface 120 is the point that serves as the reference point where the vessel holder 200 is fixed.

[0045] In addition, an "∠"-shaped wedge insertion groove 130 that is recessed inward is formed on the reference side surface 120.

[0046] That is, the wedge insertion groove 130 is formed to be recessed inward from the surface of the reference side surface 120. However, it is easier to understand by referring to the enlarged view shown in Fig. 6(a).

[0047] And the vessel holder 200 is a means for closely attaching various forms of plastic ware for observing cells to the upper surface of the stage 100.

[0048] Therefore, a ware seating portion 210 is provided on the vessel holder 200.

[0049] In this case, the ware seating portion 210 can have various forms depending on the shape of the plastic ware.

[0050] Also, on one side upper surface of the vessel holder 200, a pressing base 220 for fixing the plastic ware seated on the ware seating portion 210 so that it does not move is provided.

[0051] The pressing base 220 is axially fixed to the upper surface of the vessel holder 200 and is configured to be rotatable within a certain angle range. When the plastic ware is seated on the ware seating portion 210, it is rotated horizontally to press against its side surface.

[0052] Not only that, a screw hole 230 is formed at a distance from the pressing base 220, and a protruding wedge 240 to be inserted into the wedge insertion groove 130 is formed on the end surface of the end opposite to the end where the screw hole 230 is formed.

[0053] In addition, as shown in FIGS. 4 and 6(b), the screw hole 230 is formed in a conical shape.

[0054] Then, with the inclined surface of the protruding wedge 240 of the vessel holder 200 and the inclined surface of the wedge insertion groove 130 being aligned with each other, a screw hole 140 is formed at a point spaced apart by a separation distance (D) from the holder seating groove 110 at a position directly below the screw hole 230. That is, as shown in FIGS. 6(b), the central vertical lines of the screw hole 230 and the screw hole 140 are offset from each other.

[0055] Also, a fixing screw 250 is fastened to the screw hole 230, and the lower surface of the screw head of the fixing screw 250 is formed in a conical shape.

[0056] That is, when the fixing screw 250 with the lower surface of the screw head formed in a conical shape is fastened to the conical screw hole 230, since the central vertical lines are offset from each other, the conical shape and the cone shape are fastened in line contact.

[0057] This is because a lateral load is generated toward the center of the screw while the inclined surfaces are in line contact, which has the effect of pushing the vessel holder in the line contact direction.

[0058] In addition, the diameter of the screw hole 140 is larger than the lower end of the fixing screw 250 and the diameter of the screw hole 230. Therefore, regardless of the offset step, it is possible to fix the screw (since the complete state of the screw hole 230 can be confirmed through the hole of the fixing screw 250, it is possible to assemble without interference between the screw at the lower end of the tapered surface 142 and the screw hole 140), and the screw is more likely to seat through the tapered surface 142, thus improving the convenience of assembly.

[0059] In this way, when the fixing screw 250 bites into the screw hole 140, the protruding wedge 240 is tightly inserted and fixed into the wedge insertion groove 130 due to the offset separation distance (D).

[0060] In addition, in order to improve the sliding property of the vessel holder 200, a sliding coating layer can be further formed on the surface of the holder seating groove 110.

[0061] The sliding coating layer is formed by applying a coating liquid in which 15 parts by weight of sodium borohydride, 5 parts by weight of rutin, 2.5 parts by weight of boron nitride, and 5 parts by weight of gum dammar are added and mixed to 100 parts by weight of a polycarbonate resin excellent in durability and transparency.

[0062] At this time, sodium borohydride is added to reduce friction and increase the slipperiness of the vessel holder 200, rutin is added to suppress the interfacial separation of the coating layer, and boron nitride is added to maintain the heat dissipation property of the coating layer and enhance the heat resistance.

[0063] Also, gum dammar is a resin obtained from pine, which suppresses linear expansion, imparts lubricity, and improves the sliding property on the coating surface.

[0064] The present invention having such a configuration has the following operating relationship.

[0065] First, an end portion of the vessel holder 200 having the protruding wedge 240 is disposed on the reference side surface 120 side of the stage 100.

[0066] Thereafter, after aligning the protruding wedge 240 with the wedge insertion groove 130, using the protruding wedge 240 as a kind of hinge reference point, it is rotated in the opposite direction and placed in the holder seating groove 110.

[0067] Then, as shown in FIG. 5, the vessel holder 200 is accurately coupled to the holder seating groove 110 of the stage 100 while the protruding wedge 240 is inserted into the wedge insertion groove 130.

[0068] In this state, when the fixing screw 250 is inserted into the screw hole 230 and tightened, the threaded portion at the lower end of the fixing screw 250 is screwed into the screw hole 140 provided in the holder seating groove 110.

[0069] Ultimately, due to the separation distance (D) of the step, the vessel holder 200 is firmly and maximally adhered and fixed to the reference side surface 120 and the stage upper surface.

[0070] That is, when the protruding wedge 240 with a corresponding shape is fitted and aligned in the "∠"-shaped wedge insertion groove 130, higher fixing stability can be ensured for wedge connection.

[0071] Furthermore, both ends of the protruding wedge 240 are chamfered in an oblique direction, and inclined surfaces 242 are formed. When inserted into the wedge insertion groove 130, since the tip width of the protruding wedge 240 is smaller than the width of the wedge insertion groove 130, it can also be configured to be inserted and guided more smoothly.

[0072] In particular, the fixing force of the fixing screw 250 having a conical shape is such that the vessel holder 200 can always stably maintain its fixed position without flowing even against external impacts and vibrations while being mutually aligned with the conical screw hole 230. In other words, since the size of the hole of the screw hole 230 is larger than the size of the hole of the screw hole 140, even with a separation distance D (the size of the deviation of the central vertical line), the screw can pass through the screw hole 230 without interference and can be assembled.

[0073] That is, without the conical shape of the fixing screw 250 being completely aligned with the conical shape of the screw hole 230, it serves to press the vessel holder 200 in the direction of the reference side surface 120 while making line contact in the direction of the protruding wedge 240.

[0074] That is, the conical shape of the fixing screw 250 presses the vessel holder 200 in the direction of the reference side surface 120 while making line contact in the direction of the protruding wedge 240 without being completely aligned with the conical shape of the screw hole 230.

[0075] Ultimately, even when the protruding wedge 240 is fully inserted into the wedge insertion groove 130, the separation distance D does not become "0" (because the point of line contact must continuously press the Bessel holder 200 against the reference side surface), so it cannot be fully aligned and assembled, and the assembly is completed at an intermediate point during the alignment process.

[0076] As a result, even with just one screw, a strong and stable close contact structure can be maintained, increasing the convenience in use, improving the efficiency of the assembly operation, and enhancing the accuracy during cell observation due to the fixed stability.

Explanation of Symbols

[0077] 100: Stage 110: Holder seating groove 120: Reference side surface 130: Wedge insertion groove 140: Screw hole 200: Vessel holder 210: Wear seating part 220: Pressing base 230: Screw hole 240: Protruding wedge 250: Fixing screw

Claims

1. In a stage assembly including a stage having a holder seating groove and a vessel holder seated in the holder seating groove; One side surface of the holder seating groove serves as a reference side surface, a wedge insertion groove is formed in the reference side surface, and a screw hole is formed on the holder seating groove on the opposite side of the reference side surface; A protruding wedge to be inserted into the wedge insertion groove is formed at one end of the vessel holder, and a screw hole is formed on the vessel holder on the opposite side of the protruding wedge; One fixing screw is fastened to the screw hole and the screw hole; The vessel holder is fixed to the stage by the one fixing screw provided on the opposite side of the reference side surface, and is a vessel holder fixed with a conical screw.

2. The screw hole is conical, the lower part of the screw head of the fixing screw is formed in a conical shape, and even when the protruding wedge is completely inserted into the wedge insertion groove, the separation distance does not become "0", so it is not completely matched and assembled, and the assembly is completed at an intermediate point during the alignment. The vessel holder fixed with a conical screw according to claim 1, characterized in that.

3. The wedge insertion groove is in an "∠" shape, and the protruding wedge has a shape corresponding to the wedge insertion groove. The vessel holder fixed with a conical screw according to claim 1, characterized in that.

4. Both ends of the protruding wedge are chamfered in an oblique direction to form inclined surfaces, and the tip width of the protruding wedge is formed smaller than the width of the wedge insertion groove. The vessel holder fixed with a conical screw according to claim 3, characterized in that.

5. The vessel holder further includes a pressing base at a distance from the screw hole, and the pressing base is axially fixed to the upper surface of the vessel holder and is configured to be rotated within a certain angle range. The vessel holder fixed with a conical screw according to claim 1, characterized in that.

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