Mounting platform

Abstract

To realize a mounting stage capable of suppressing the generation of a particle at positioning even in the case where a weight of a housing container is increased.SOLUTION: A mounting stage (10) comprises: a plurality of positioning pins (20) that is projected to an upper direction from a mounting stage upper surface (10a) to which a housing container (100) is mounted; and a plurality of buffers (30). Each of the plurality of positioning pins (20) is arranged to the mounting stage upper surface (10a) so as to be engaged to each of a plurality of positioning grooves (112). In each of the plurality of positioning pins (20), each buffer (30) is provided. An upper end of each buffer (30) is depressed to a lower direction, and is energized to an upper direction in the case where it is depressed. In a state where the upper end is not depressed to the lower direction, it is positioned at a height so as to be contacted to a tip from each positioning pin (20) of a bottom surface (101) of the housing container (100) to be mounted.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a mounting table for mounting a storage container.

Background Art

[0002] Conventionally, in order to accurately mount a storage container such as a transported semiconductor wafer, a technique of providing a positioning mechanism has been used. For example, Patent Document 1 discloses a technique in which a bottom recess provided on the bottom surface of a container body and a positioning member that can be elastically deformed in the vertical direction provided on a support body are engaged, so that the container is mounted at an appropriate position in the horizontal direction.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the conventional technology as described above, when the load of the container increases, wear may occur between the positioning member and the container in a short period of time, and particles may be generated. The generation of particles becomes a problem when handling products that require a high degree of cleanliness.

[0005] One aspect of the present invention aims to realize a mounting table that can suppress the generation of particles during positioning even when the load of the storage container increases.

Means for Solving the Problems

[0006] To solve the above problems, a mounting stand according to one aspect of the present invention is a mounting stand for mounting a storage container having a plurality of positioning grooves on its bottom surface, comprising: a plurality of positioning pins protruding upward from the upper surface of the mounting stand on which the storage container is mounted; and a plurality of buffer bodies protruding upward from the upper surface of the mounting stand, wherein each of the plurality of positioning pins is arranged on the upper surface of the mounting stand so as to engage with each of the plurality of positioning grooves, and each of the plurality of positioning pins is provided with the buffer body, wherein the upper end of the buffer body can be pushed downward and is biased upward when pushed in, and furthermore, when the upper end is not pushed downward, it is positioned at a height that contacts the bottom surface of the storage container on which it is mounted before the positioning pins. [Effects of the Invention]

[0007] According to one aspect of the present invention, a mounting platform can be realized that can suppress the generation of particles during positioning, even when the load of the storage container increases. [Brief explanation of the drawing]

[0008] [Figure 1] This is a cross-sectional view showing a mounting stand and storage container according to Embodiment 1 of the present invention. [Figure 2] This is a diagram showing the bottom surface of the storage container shown above. [Figure 3] This figure shows the cushioning material and positioning pins used when placing a storage container on the stand described above. [Figure 4] This is a cross-sectional view showing a mounting stand and storage container according to Embodiment 2 of the present invention. [Figure 5] This is a diagram showing the bottom surface of the storage container shown above. [Figure 6] This figure shows the cushioning material and positioning pins used when placing a storage container on the stand described above. [Modes for carrying out the invention]

[0009] [Embodiment 1] The following describes in detail one embodiment of the present invention. However, the following description is an example of the mounting stand 10 according to the present invention, and the technical scope of the present invention is not limited to the illustrated example. For the sake of simplicity, in the following description, with respect to the container body 120 in Figure 1, the gripping portion 121 side will be considered upward and the bottom surface 101 side will be considered downward.

[0010] [Outline of the mounting platform] To ensure accurate placement of the transported storage container 100, a positioning mechanism is provided on both the storage container 100 and the mounting base 10. The positioning mechanism functions through a positioning groove 112 located on the bottom surface 101 of the storage container 100 and a positioning pin 20 located on the mounting base 10.

[0011] Figure 1 is a cross-sectional view showing a mounting base 10 and a storage container 100 according to Embodiment 1 of the present invention. In the positioning mechanism, by lowering the storage container 100 toward the mounting base 10, the inclined portion 114 of the positioning groove 112 and the tip of the positioning pin 20 come into contact. By further lowering the storage container 100 in this state, the positioning pin 20 is guided to the flat portion 113 of the positioning groove 112, and the storage container 100 is guided to the mounting position.

[0012] In this embodiment, as shown in Figure 1, the mounting base 10 is provided with a buffer 30 for each of the positioning pins 20. The buffer 30 is configured such that its upper end can be pushed downward and, when pushed, is biased upward, and furthermore, when its upper end is not pushed downward, it is positioned at a height that contacts the bottom surface 101 of the storage container 100 to be placed on it before the positioning pins 20.

[0013] This allows the buffer 30 to bear or absorb the load or amplitude of the storage container 100 when it is placed on the mounting base 10. Therefore, even when the load of the storage container 100 is large, wear between the positioning pin 20 and the storage container 100 can be suppressed, and thus the generation of particles during positioning can be suppressed even when the load of the storage container 100 increases.

[0014] (Storage container) The storage container 100 is a transport container used when transporting products, and is, for example, a FOUP (Front Opening Unified Pod) or a FOSB (Front Open Shipping Box). The storage container 100 includes a container body 120 and a gripping portion 121. The container body 120 is a substantially rectangular parallelepiped housing, and although not shown, products that require a high degree of cleanliness, such as semiconductor wafers, etc., are stored inside. The storage container 100 is gripped at the gripping portion 121 from an arbitrary position, transported above the mounting table 10, and then lowered and mounted on the mounting table 10.

[0015] A plurality of positioning grooves 112 are provided as a part of the bottom surface 101 of the storage container 100. FIG. 2 is a view showing the bottom surface 101 of the storage container 100. In FIG. 2, the positions where the positioning pins 20 and the buffer bodies 30 contact the bottom surface 101 are also shown by solid lines. As shown in FIG. 2, three positioning grooves 112 are provided radially from the substantially central portion of the bottom surface 101 toward the outer peripheral portion. The positioning groove 112 has an upwardly concave shape and is formed in a tapered shape that becomes narrower toward the upward direction, and thus has an inclined portion 114.

[0016] Also, the central portion in the width direction D1 of the positioning groove 112 forms a flat portion 113 parallel to the main surface of the bottom surface 101 of the storage container 100. Here, the main surface of the bottom surface 101 indicates the surface when the entire bottom surface 101 is regarded as one surface. That is, parallel to the main surface of the bottom surface 101 means parallel to the direction of the surface when the entire bottom surface 101 is regarded as one surface. The positioning groove 112 is provided so that the positioning pins 20 provided on the mounting table 10 engage from below when the storage container 100 is mounted on the mounting table 10.

[0017] (Mounting table) The storage container 100 is placed on the mounting table 10. The mounting table 10 includes positioning pins 20 and buffer bodies 30.

[0018] On the mounting table 10, a part of the upper surface 10a of the mounting table is constituted by the upper surface 11a of the plate 11. The plate 11 may be supported by a part of the mounting table 10, and its height in the vertical direction and its position in the horizontal direction may be adjustable.

[0019] (Positioning pin) There are a plurality of positioning pins 20, which project upward from the upper surface 10a of the mounting table on which the storage container 100 is placed. Each of the plurality of positioning pins 20 is arranged on the upper surface 10a of the mounting table so as to engage with each of the plurality of positioning grooves 112. Further, as shown in FIG. 2, when the storage container 100 is placed on the mounting table 10, the positioning pin 20 is arranged on the upper surface 10a of the mounting table so as to be located at the end on the outer edge side of the bottom surface 101 in the flat portion 113 of the positioning groove 112.

[0020] The positioning pin 20 is substantially cylindrical, and a flat portion 21 that is substantially parallel in the horizontal direction is formed at the upper end portion of the positioning pin 20. When the storage container 100 is displaced horizontally with respect to the mounting position when being placed on the mounting table 10, the positioning pin 20 is guided by the flat portion 113 of the positioning groove 112, so that the storage container 100 is guided to an appropriate mounting position.

[0021] The positioning pin 20 is fixed to the plate 11. For example, the base portion of the positioning pin 20 with a threaded tip is fixed to the mounting table 10, and the positioning pin 20 is fixed to the mounting table 10 by screwing the positioning pin 20 onto the base.

[0022] (Buffer) There are a plurality of buffers 30, which project upward from the upper surface 10a of the mounting table. Further, the buffers 30 are provided for each of the plurality of positioning pins 20. In the present embodiment, one buffer 30 is provided for one positioning pin 20. Not limited to the above, a plurality of buffers 30 may be provided for one positioning pin 20.

[0023] The buffer 30 is configured such that its upper end can be pushed downward and, when pushed downward, it is biased upward. Furthermore, when the upper end of the buffer 30 is not pushed downward, it is positioned at a height that contacts the bottom surface 101 of the storage container 100 on which it is placed before the positioning pin 20.

[0024] As a result, when the storage container 100 is placed on the mounting base 10, the buffer 30 and the bottom surface 101 of the storage container 100 come into contact with each other before the positioning pin 20 comes into contact with the bottom surface 101 of the storage container 100. Therefore, the buffer 30 can bear the load of the storage container 100 when it is placed on the mounting base 10, so wear between the positioning pin 20 and the storage container 100 can be suppressed even when the load of the storage container 100 is large. Consequently, even when the load of the storage container 100 increases, the generation of particles during positioning can be suppressed.

[0025] Figure 3 shows the buffer 30 and positioning pin 20 when the storage container 100 is placed on the mounting base 10. 3001 in Figure 3 shows the buffer 30 and positioning pin 20 at the point when the buffer 30 begins to contact the bottom surface 101 of the storage container 100, and 3002 in Figure 3 shows the buffer 30 and positioning pin 20 when the storage container 100 is placed on the mounting base 10. As shown in Figure 3, the buffer 30 has an elastic portion 31 made of an elastic material, and the elastic portion 31 includes the upper end portion 33 of the buffer 30. The elastic material is, for example, rubber.

[0026] As shown in Figure 3, 3001, even when the storage container 100 descends from above the mounting base 10 and the buffer 30 contacts the bottom surface 101 of the storage container 100, the positioning pin 20 does not contact the bottom surface 101 (positioning groove 112). As the storage container 100 descends further, as shown in Figure 3, 3002, the upper end 33 of the buffer 30 is pushed downward, the positioning pin 20 contacts the flat portion 113 and comes to rest, and the storage container 100 is placed on the mounting base 10.

[0027] In this way, the upper end portion 33 of the buffer 30 becomes the elastic portion 31, so that the elastic portion 31 deforms when the storage container 100 is placed on the mounting base 10. As a result, the buffer 30 bears the load of the storage container 100, while the positioning pin 20 allows the storage container 100 to be placed on the mounting base 10.

[0028] The buffer 30 is positioned on the upper surface 10a of the mounting base 10 so as to correspond to positions on the bottom surface 101 of the storage container 100 other than the positioning groove 112 when the storage container 100 is placed on the mounting base 10.

[0029] In this way, since the buffer 30 is positioned on the upper surface 10a of the mounting base to correspond to positions other than the positioning groove 112, it does not affect the positioning function of the storage container 100. Furthermore, the size of the buffer 30 can be provided regardless of the size of the positioning groove 112. For example, by increasing the contact area between the bottom surface 101 and the buffer 30 when the storage container 100 is placed on the mounting base 10, the load of the storage container 100 borne by the buffer 30 can be increased, and it can accommodate storage containers 100 with heavier loads.

[0030] In the buffer body 30, the upper end portion 33 of the buffer body 30 is formed in a spherical shape with the central portion 34 being the uppermost point. When lowering the storage container 100 toward the mounting base 10, it may not be possible to lower the storage container 100 in a perfectly horizontal state. Therefore, if the upper end portion 33 of the buffer body 30 is flat and approximately parallel to the horizontal direction, corners will be formed on the buffer body 30, and these corners will wear down. Therefore, by making the uppermost point of the buffer body 30 spherical, the load of the storage container 100 is applied to the buffer body 30 in a balanced manner, and uneven wear of the buffer body 30 can be prevented.

[0031] Furthermore, the buffer body 30 is equipped with a length adjustment mechanism 32 at the lower part of its upper end portion 33, which adjusts the length by which the buffer body 30 protrudes upward from the upper surface 10a of the mounting base. This allows the vertical length of the buffer body 30 to be adjusted, thereby adjusting the magnitude of the load of the storage container 100 borne by the buffer body 30. Moreover, even if the elastic portion 31 deforms due to the use of the buffer body 30, the buffer body 30 can be used for a long period of time by adjusting its length. The length adjustment mechanism 32 may be composed of, for example, a screw.

[0032] The buffer 30 is columnar in shape and has a larger diameter than the positioning pin 20. Specifically, the buffer 30 is roughly cylindrical, and as shown in 3002 of Figure 3, when the storage container 100 is placed on the mounting base 10, the flat portion 21 at the upper end of the positioning pin 20 contacts the flat portion 113 of the positioning groove 112, and the upper end portion 33 of the buffer 30 deforms and contacts the bottom surface 101 of the storage container 100. If the diameter of the flat portion 21 at the upper end of the positioning pin 20 is R1, and the diameter of the contact portion between the deformed buffer 30 and the bottom surface 101 of the storage container 100 is R2, then R1 <R2となる。

[0033] This allows the load on the storage container 100 borne by the buffer 30 to be greater than that of the positioning pin 20, thereby further suppressing wear between the positioning pin 20 and the storage container 100.

[0034] Furthermore, on the upper surface 10a of the mounting base, when the storage container 100 is placed on the mounting base 10, positioning pins 20 are positioned at the positions corresponding to each vertex of the first triangle T1 (see Figure 2), and buffer bodies 30 are positioned at the positions corresponding to each vertex of the second triangle T2 (see Figure 2), which is an enlarged version of the first triangle T1 and encloses the first triangle T1.

[0035] In other words, the buffer 30 is provided on the outer periphery side of the positioning grooves 112, along radial lines from approximately the center of the bottom surface 101 through each positioning groove 112. It is desirable that the buffer 30 be adjacent to the positioning pins 20. This allows the buffer 30 to be positioned in a balanced manner relative to the bottom surface 101 of the storage container 100, thereby further suppressing wear between the positioning pins 20 and the storage container 100.

[0036] The placement of the buffer 30 on the upper surface 10a of the mounting base is not limited to the above. For example, if the load of the storage container 100 can be shared evenly with the positioning pin 20, one buffer 30 may be placed on the upper surface 10a of the mounting base at a position corresponding to approximately the center of the first triangle T1.

[0037] The buffer 30 is fixed to the part of the mounting base 10 other than the plate 11. By installing the buffer 30 on the mounting base 10 other than the plate 11, the support for the buffer 30 can be strengthened, making it possible to withstand a larger load.

[0038] [Embodiment 2] Other embodiments of the present invention will be described below. For the sake of clarity, components having the same function as those described in the above embodiments will be denoted by the same reference numerals, and their descriptions will not be repeated.

[0039] Figure 4 is a cross-sectional view showing a mounting base 10X and a storage container 100 according to Embodiment 2 of the present invention. As shown in Figure 4, the mounting base 10X differs from the mounting base 10 in that it is equipped with a buffer 30X instead of a buffer 30, but the other configurations are the same.

[0040] (buffer) Figure 5 shows the bottom surface 101 of the storage container 100. In Figure 5, the positions where the positioning pin 20 and the buffer 30X contact the bottom surface 101 are also shown with solid lines. Figure 6 shows the buffer 30X and positioning pin 20 when the storage container 100 is placed on the mounting base 10X, and shows the buffer 30X and positioning pin 20 at the point when the buffer 30X begins to contact the bottom surface 101 of the storage container 100.

[0041] As shown in Figure 5, the buffer 30X is positioned on the upper surface 10Xa of the mounting base 10X such that when the storage container 100 is placed on the mounting base 10X, it is located inside the positioning groove 112 of the bottom surface 101 of the storage container 100 and approximately in the center in the width direction D1. Furthermore, when the storage container 100 is placed on the mounting base 10X, the buffer 30X is positioned inside the positioning groove 112 of the bottom surface 101 of the storage container 100 and approximately in the center in the length direction D2. When the storage container 100 is placed on the mounting base 10X, the flat portion 37 at the upper end of the buffer 30X abuts against the flat portion 113.

[0042] The buffer 30X is positioned at a height that, when its upper end is not pushed downward, contacts the bottom surface 101 of the storage container 100 before the positioning pin 20. Therefore, as shown in Figure 6, even when the storage container 100 descends from above the mounting base 10X and the buffer 30X contacts the bottom surface 101 of the storage container 100, the positioning pin 20 does not contact the bottom surface 101 (positioning groove 112). As the storage container 100 descends further, the upper end of the buffer 30X is pushed downward, the positioning pin 20 contacts the flat portion 113 and comes to rest, and the storage container 100 is placed on the mounting base 10X.

[0043] In the buffer body 30X, at least the portion (flat portion 37) that contacts the bottom surface 101 of the storage container 100 is columnar in shape with a diameter smaller than the width B1 of the flat portion 113. Specifically, when the storage container 100 is placed on the mounting base 10X, only the upper flat portion 37 of the buffer body 30X contacts the positioning groove 112 (bottom surface), and if the diameter of the upper flat portion 37 of the buffer body 30X is R3, then B1 > R3 (see Figures 5 and 6). This makes it possible to suppress the amplitude of the storage container 100 when it is placed on the mounting base 10X so as not to affect the positioning function of the storage container 100.

[0044] The buffer 30X has a movable part 35 that is biased upward by a spring, and the movable part 35 is fixed to the plate 11 via a support part 36. The buffer 30X is, for example, a shock absorber that utilizes a spring.

[0045] As a result, the shock absorber 30X can absorb the impact on the storage container 100 when it is placed on the mounting base 10X within the positioning groove 112. Therefore, the amplitude of relative movement between the storage container 100 and the positioning pin 20 when the storage container 100 is placed on the mounting base 10X can be suppressed, and wear between the positioning pin 20 and the storage container 100 can be suppressed.

[0046] Furthermore, the cushioning material 30X has weaker elasticity compared to the cushioning material 30, and therefore bears almost no load of the storage container 100 when the storage container 100 is placed on the mounting base 10X. For this reason, even if the cushioning material 30X comes into contact with the storage container 100 within the positioning groove 112, it does not affect the positioning of the storage container 100 relative to the mounting base 10X.

[0047] The positioning pin 20 and the buffer 30X are fixed to the plate 11. Although not shown in the figure, the buffer 30X may also be equipped with a length adjustment mechanism, such as a screw, at the lower part of the movable part 35 to adjust the length by which the buffer 30X protrudes upward from the upper surface 10Xa of the mounting base.

[0048] 〔summary〕 A mounting base (10·10X) according to Embodiment 1 of the present invention is a mounting base for mounting a storage container (100) having a plurality of positioning grooves (112) on its bottom surface (101), comprising a plurality of positioning pins (20) protruding upward from the upper surface (10a·10Xa) of the mounting base on which the storage container (100) is mounted, and a plurality of buffer bodies (30·30X) protruding upward from the upper surface (10a·10Xa) of the mounting base, wherein each of the plurality of positioning pins (20) is related to each of the plurality of positioning grooves (112). The buffers (30, 30X) are arranged on the upper surface (10a, 10Xa) of the aforementioned base so as to fit together, and each of the plurality of positioning pins (20) is provided with a buffer body (30, 30X), the buffer body (30, 30X) is configured such that its upper end can be pushed in downward and, when pushed in, is biased upward, and furthermore, when its upper end is not pushed in downward, it is positioned at a height that contacts the bottom surface (101) of the storage container (100) to be placed on it before the positioning pins (20).

[0049] With the above configuration, the buffer material contacts the bottom surface of the storage container before the positioning pin contacts the bottom surface of the storage container. Therefore, the buffer material can bear or absorb the load or impact of the storage container when it is placed on the mounting platform, thus suppressing wear between the positioning pin and the storage container even when the load of the storage container is large. As a result, even when the load of the storage container increases, the generation of particles during positioning can be suppressed.

[0050] In the mounting base (10) according to embodiment 2 of the present invention, in embodiment 1, the buffer body (30) has an elastic portion (31) made of an elastic material and may be arranged on the upper surface (10a) of the mounting base described above so as to correspond to a position other than the positioning groove (112) on the bottom surface (101) of the storage container (100).

[0051] According to the above configuration, the buffer is positioned on the top surface of the mounting platform so as to correspond to positions other than the positioning groove, allowing the buffer to be positioned without affecting the positioning function of the storage container. Furthermore, since the size of the buffer can be provided regardless of the size of the positioning groove, for example, by increasing the contact area between the buffer and the bottom surface when the storage container is placed on the mounting platform, the load borne by the buffer can be increased, allowing it to accommodate storage containers with heavier loads.

[0052] In the mounting platform (10) according to embodiment 3 of the present invention, in embodiment 2, the elastic portion (31) includes the upper end portion (33) of the buffer (30), and the upper end portion (33) of the buffer (30) may be formed in a spherical shape with the central portion (34) being the uppermost end.

[0053] With the above configuration, the upper end of the buffer becomes an elastic part, so the elastic part deforms when the storage container is placed on the mounting base. As a result, the buffer absorbs the load of the storage container, while the positioning pins allow the storage container to be placed on the mounting base.

[0054] Furthermore, by making the uppermost surface of the buffer spherical, the load of the storage container is evenly distributed across the buffer, preventing uneven wear of the buffer.

[0055] In the mounting base (10) according to embodiment 4 of the present invention, in embodiment 2 or 3 above, the buffer body (30) may be columnar in shape with a larger diameter than the positioning pin (20).

[0056] With the above configuration, since the diameter of the buffer is larger than that of the positioning pin, the load that the buffer bears on the storage container can be made larger than that of the positioning pin, thus further suppressing wear between the positioning pin and the storage container.

[0057] In the mounting base (10) according to embodiment 5 of the present invention, in any of embodiments 2 to 4 above, the positioning pins (20) are arranged at the positions of each vertex of the first triangle (T1) on the upper surface (10a) of the mounting base, and the buffer body (30) is arranged at the positions of each vertex of the second triangle (T2), which is an enlargement of the first triangle (T1) and encloses the first triangle (T1).

[0058] According to the above configuration, the cushioning material can be positioned in a balanced manner on the bottom surface of the storage container, thereby further suppressing wear between the positioning pin and the storage container.

[0059] In the mounting base (10) according to embodiment 6 of the present invention, in any of embodiments 2 to 5 above, the mounting base (10) is provided with a plate (11) whose upper surface (11a) constitutes a part of the mounting base upper surface (10a) described above, the positioning pin (20) is fixed to the plate (11), and the buffer (30) may be fixed to a part of the mounting base other than the plate (11).

[0060] The above configuration allows for precise placement of the positioning pins. Furthermore, by installing the buffer on a mounting base other than the plate, the support for the buffer can be strengthened, enabling it to withstand greater loads.

[0061] In the mounting base (10X) according to embodiment 7 of the present invention, in embodiment 1, the buffer (30X) may have a movable part (35) biased upward by a spring and be positioned on the upper surface (10Xa) of the mounting base described above, inside the positioning groove (112) of the bottom surface (101) of the storage container (100) and in the center in the width direction (D1).

[0062] According to the above configuration, the buffer can absorb the impact on the storage container when it is placed on the mounting base within the positioning groove, thereby suppressing the amplitude of the relative movement between the storage container and the positioning pin when the storage container is placed on the mounting base.

[0063] In the mounting platform (10X) according to embodiment 8 of the present invention, in embodiment 7, the central part of the positioning groove (112) in the width direction (D1) forms a flat portion (113) parallel to the main surface of the bottom surface of the storage container (100), and at least the portion of the buffer body (30) that contacts the bottom surface (101) of the storage container (100) may have a diameter smaller than the width (B1) of the flat portion (113).

[0064] According to the above configuration, at least the portion of the buffer that contacts the bottom surface of the storage container has a smaller diameter than the width of the flat portion of the positioning groove. Therefore, the amplitude when placing the storage container on the mounting platform can be suppressed so as not to affect the positioning function of the storage container.

[0065] In the mounting base (10X) according to embodiment 9 of the present invention, in embodiment 7 or 8, the mounting base (11) is provided with a plate (11) whose upper surface (11a) constitutes a part of the mounting base upper surface (10Xa) described above, and the positioning pin (20) and the buffer (30) may be fixed to the plate (11).

[0066] The above configuration allows for precise placement of the positioning pins and buffers.

[0067] In the mounting base (10X) according to embodiment 10 of the present invention, in any of embodiments 1 to 9 above, the buffer body (30·30X) may be provided with a length adjustment mechanism (32) for adjusting the length by which the buffer body (30·30X) protrudes upward from the upper surface (10a·10Xa) of the mounting base described above.

[0068] With the above configuration, the vertical length of the buffer can be adjusted, allowing for adjustment of the load on the storage container that the buffer bears, for example. Furthermore, even if the elastic part deforms due to the use of the buffer, adjusting the length of the buffer allows for long-term use.

[0069] The present invention is not limited to the embodiments described above, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present invention. [Explanation of Symbols]

[0070] 10, 10X mounting platform 10a, 10Xa top surface of mounting table 11 plates 20 positioning pins 113 Flat portion of the positioning groove 30, 30X buffer 31 Elastic part 32 Length adjustment mechanism 33 Upper end of buffer 34 Central part of the buffer 35 Moving parts 100 storage containers 101 Base 112 Positioning groove B1 Width of the flat portion of the positioning groove D1 Positioning groove width direction T1 First triangle T2 Second triangle

Claims

1. A mounting platform for placing a storage container having multiple positioning grooves on its bottom surface, Multiple positioning pins protruding upward from the upper surface of the mounting platform on which the storage container is placed, The system comprises a plurality of buffer bodies that protrude upward from the upper surface of the mounting platform, Each of the plurality of positioning pins is positioned on the upper surface of the base described above so as to engage with each of the plurality of positioning grooves, Each of the plurality of positioning pins is provided with the buffer, The aforementioned buffer body The upper end can be pushed downward, and is configured to be biased upward when pushed in, and further, With the upper end not pushed in downwards, it is positioned at a height that contacts the bottom surface of the storage container on which it is placed before the positioning pin, and further The buffer has a movable part that is biased upward, A mounting platform is positioned on the upper surface of the aforementioned mounting platform so as to be located inside the positioning groove on the bottom surface of the storage container and in the center in the width direction.

2. A mounting platform for placing a storage container having multiple positioning grooves on its bottom surface, Multiple positioning pins protruding upward from the upper surface of the mounting platform on which the storage container is placed, The system comprises a plurality of buffer bodies that protrude upward from the upper surface of the mounting platform, Each of the plurality of positioning pins is positioned on the upper surface of the base described above so as to engage with each of the plurality of positioning grooves, Each of the plurality of positioning pins is provided with the buffer, The aforementioned buffer body The upper end can be pushed downward, and is configured to be biased upward when pushed in, and further, With the upper end not pushed in downwards, it is positioned at a height that contacts the bottom surface of the storage container on which it is placed before the positioning pin, and further A mounting platform provided in a state in which the storage container is placed on the aforementioned mounting platform, radiating from a position on the upper surface of the aforementioned mounting platform corresponding to approximately the center of the bottom surface through the positioning pin.

3. The mounting platform according to claim 2, wherein the buffer is provided so as to be located on the outer peripheral side of the bottom surface of the positioning groove.

4. A mounting platform for placing a storage container having multiple positioning grooves on its bottom surface, Multiple positioning pins protruding upward from the upper surface of the mounting platform on which the storage container is placed, The system comprises a plurality of buffer bodies that protrude upward from the upper surface of the mounting platform, Each of the plurality of positioning pins is positioned on the upper surface of the base described above so as to engage with each of the plurality of positioning grooves, Each of the plurality of positioning pins is provided with the buffer, The aforementioned buffer body The upper end can be pushed downward, and is configured to be biased upward when pushed in, and further, With the upper end not pushed in downwards, it is positioned at a height that contacts the bottom surface of the storage container on which it is placed before the positioning pin, and further, On the upper surface of the aforementioned mounting platform, The positioning pins are positioned at the vertices of the first triangle. One of the aforementioned buffers is a mounting platform positioned at approximately the center of the first triangle.

5. The mounting platform according to claim 1, wherein the movable part is biased upward by a spring.

6. The central part of the positioning groove in the width direction forms a flat portion parallel to the main surface of the bottom surface of the storage container. The mounting platform according to claim 1, wherein at least the portion of the buffer that contacts the bottom surface of the storage container has a diameter smaller than the width of the flat portion.

7. The aforementioned mounting platform is The top surface is a plate that forms part of the top surface of the stand described above, The mounting base according to claim 1 or 6, wherein the positioning pin and the buffer are fixed to the plate.

8. The mounting base according to any one of claims 1 to 6, wherein the buffer is provided with a length adjustment mechanism for adjusting the length by which the buffer protrudes upward from the upper surface of the mounting base described above.

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