Spacer

Abstract

This spacer is disposed between a base on which an industrial machine is placed and a mount device positioned on a lower side of the base, the spacer comprising: an upper part; a lower part; a plurality of support parts which are positioned between the upper part and the lower part and which connect the upper part and the lower part; and an opening part which penetrates the spacer in the vertical direction and in which a shaft part provided in the mount device is arranged.

Description

Spacer

[0001] The present disclosure relates to a spacer.

[0002] Japanese Patent Application Laid-Open No. 2003-231152 discloses a technique for switching the level of an injection unit by inserting or removing a raising block of a certain height between the machine base (base) and the injection unit, which is part of the injection molding machine.

[0003] Recently, there has been a demand for a spacer that can raise the overall height of industrial machinery such as injection molding machines, machine tools, and robots.

[0004] An aspect of the present disclosure is a spacer that is arranged between a machine base on which an industrial machine is placed and a mounting device located below the machine base, and that comprises an upper portion, a lower portion, a plurality of support portions located between the upper portion and the lower portion and connecting the upper portion and the lower portion, and an opening that passes through the spacer in the vertical direction and in which a shaft portion provided on the mounting device is arranged.

[0005] FIG. 1 is a perspective view showing a mechanical system. FIG. 2 is an enlarged view of a portion including one mounting device. FIG. 3 is a view showing a spacer in a first embodiment. FIG. 4 is a view showing a spacer in a second embodiment. FIG. 5 is a view showing a spacer in a third embodiment. FIG. 6 is a view showing a modified example of the gripping portion. FIG. 7 is a view showing another modified example of the gripping portion. FIG. 8 is a view showing a spacer in a fourth embodiment. FIG. 9 is a view showing a state in which the spacer in the fourth embodiment is installed. FIG. 10 is a view showing a spacer in a fifth embodiment. FIG. 11 is a view showing a state in which the spacer in the fifth embodiment is installed. FIG. 12 is a view showing a state in which the spacer is positioned when the shaft portion is positioned in the opening. FIG. 13 is a view showing a spacer in a sixth embodiment. FIG. 14 is a view showing a spacer in a seventh embodiment.

[0006] 1 is a perspective view showing a machine system 10. The machine system 10 includes an industrial machine 12, a machine base 14, and a plurality of mounting devices 16. A spacer 18 according to this embodiment can be attached to such a machine system 10, but is not limited to this.

[0007] The industrial machine 12 may be an injection molding machine, a machine tool, or a robot. The industrial machine 12 may be part of an injection molding machine. Examples of parts of an injection molding machine include a mold clamping device or an injection device. FIG. 1 shows an example in which the industrial machine 12 is an injection molding machine. The injection molding machine includes a mold clamping device 120, an injection device 122, and a protective cover 124. The mold clamping device 120 opens and closes a mold and applies a mold clamping force to the mold in a closed state. The injection device 122 injects molding resin into the mold in a closed state. The protective cover 124 covers the mold clamping device 120 and the injection device 122. When an opening / closing door 126 provided on the side of the protective cover 124 is open, peripheral devices can access the inside of the protective cover 124. The protective cover 124 may cover the mold clamping device 120 and the injection device 122 separately.

[0008] The machine base 14 is a member on which the industrial machine 12 is installed. The machine base 14 has a lower frame 140, an upper frame 142, and a plurality of support frames 144. The plurality of support frames 144 are arranged at intervals and extend along the vertical direction. One end of each of the plurality of support frames 144 is connected to the lower frame 140. The other end of each of the plurality of support frames 144 is connected to the upper frame 142. The industrial machine 12 is installed on the upper frame 142.

[0009] The multiple mount devices 16 are devices that support the machine base 14. The multiple mount devices 16 are attached to the lower frame 140 at intervals. The multiple mount devices 16 may have vibration-damping members that absorb vibrations generated by the industrial machine 12 or the like.

[0010] 2 is an enlarged view of a portion including one mounting device 16. In FIG. 2, a portion of the lower frame 140, a portion of the mounting device 16, and a portion of the spacer 18 are shown in cross section. The mounting device 16 has a base portion 160, a shaft portion 162, and a fastening portion 164.

[0011] The base 160 is a part that forms the foundation of the machine base 14. The base 160 is installed on an installation surface IF such as the ground or floor. The base 160 is located between the installation surface IF and the lower frame 140.

[0012] The shaft portion 162 is a portion that extends upward from the base portion 160. The shaft portion 162 may be detachable from the base portion 160. The shaft portion 162 may be the threaded portion of a bolt. The shaft portion 162 is inserted into a shaft insertion portion 146 formed in the lower frame 140. The shaft insertion portion 146 is provided to fix the mount device 16 to the lower frame 140. The shaft insertion portion 146 passes through the lower frame 140 in the vertical direction. The shaft insertion portion 146 may be a hole (through hole). Alternatively, the shaft insertion portion 146 may be a notch that extends horizontally from the side surface of the lower frame 140.

[0013] The fastening portion 164 is a portion that secures the mount device 16 to the lower frame 140. The fastening portion 164 is located above the lower frame 140. The fastening portion 164 is fastened to the shaft portion 162 that is inserted into the shaft insertion portion 146. This fastening secures the mount device 16 to the lower frame 140 via the spacer 18. The fastening portion 164 may be a lock nut that screws onto the shaft portion 162. The fastening portion 164 may also be the head of a bolt.

[0014] The mount device 16 may be capable of adjusting the height of the machine base 14. For example, the mount device 16 is provided with a leveling portion 166 between the base 160 and the lower frame 140 that can rise and fall in response to the rotation of the shaft portion 162.

[0015] The spacers 18 are members disposed between the machine base 14 and the mount devices 16. The spacers 18 are used to raise the height of the machine base 14. One spacer 18 is disposed for each mount device 16 (see FIG. 1). The spacers 18 are interposed between the machine base 14 and the mount devices 16, with the shafts 162 of the mount devices 16 passing through the spacers 18 and the lower frame 140.

[0016] 3 is a diagram showing the spacer 18 according to the first embodiment. As shown in FIG. 3, the spacer 18 includes an upper portion 180, a lower portion 182, a plurality of support posts 184, and an opening 186.

[0017] The upper portion 180 is a portion located above the spacer 18. The upper portion 180 abuts against the machine base 14. A buffer member may be disposed between the upper portion 180 and the machine base 14. The upper portion 180 is formed in a disk (ring) shape. A hollow portion 190 of the upper portion 180 penetrates the upper portion 180 in the up-down direction. Because the hollow portion 190 is formed in the center of the upper portion 180, the shape of the upper portion 180 as a whole is ring-shaped.

[0018] The lower portion 182 is a portion located below the spacer 18. The lower portion 182 abuts against the mount device 16. A buffer member may be disposed between the lower portion 182 and the mount device 16. The lower portion 182 is formed in a disk (ring) shape. A hollow portion 192 of the lower portion 182 penetrates the lower portion 182 in the up-down direction. Because the hollow portion 192 is formed in the center of the lower portion 182, the shape of the lower portion 182 as a whole is ring-shaped.

[0019] The hollow portion 190 of the upper portion 180 and the hollow portion 192 of the lower portion 182 are positioned on the central axis of the spacer 18. The hollow portion 190 of the upper portion 180 and the hollow portion 192 of the lower portion 182 overlap in the vertical direction.

[0020] The plurality of support columns 184 are portions that support the load. The plurality of support columns 184 are located between the upper portion 180 and the lower portion 182. One ends of the plurality of support columns 184 are connected to the upper portion 180. The other ends of the plurality of support columns 184 are connected to the lower portion 182. The plurality of support columns 184 connect the upper portion 180 and the lower portion 182 together.

[0021] The multiple support columns 184 are arranged at intervals in a direction along the circumferential direction D1 of the upper portion 180 (or the lower portion 182). The multiple support columns 184 are not located between the hollow portion 190 of the upper portion 180 and the hollow portion 192 of the lower portion 182. In other words, the support columns 184 do not overlap with the hollow portions 190, 192 in the up-down direction. The shapes of the multiple support columns 184 may be the same or different. Note that, although the shape of the support columns 184 is a rectangular parallelepiped in FIG. 3, the shape is not limited to this.

[0022] The opening 186 is a space that passes through the spacer 18 in the vertical direction. The shaft 162 of the mounting device 16 is disposed in the opening 186. The opening 186 is located on the central axis of the spacer 18. In this embodiment, the opening 186 includes a hollow portion 190 in the upper portion 180, a hollow portion 192 in the lower portion 182, and a space located between the hollow portions 190 and 192. The space located between the hollow portions 190 and 192 is surrounded by a plurality of support portions 184.

[0023] The installation work of the spacer 18 is performed as follows. First, the shaft portion 162 of the mounting device 16 is passed through the hollow portion 192 of the lower portion 182 and the hollow portion 190 of the upper portion 180, and the spacer 18 is placed on the mounting device 16. Next, the shaft portion 162 of the mounting device 16 is passed through the shaft insertion portion 146 of the lower frame 140, and the lower frame 140 is placed on the spacer 18. Thereafter, the fastening portion 164 is fastened to the shaft portion 162 of the mounting device 16, and the installation work of the spacer 18 is completed.

[0024] As described above, the spacer 18 of this embodiment includes an upper portion 180, a lower portion 182, and multiple support columns 184. The spacer 18 includes an opening 186 through which the shaft 162 of the mount device 16 is disposed. The opening 186 penetrates the spacer 18. The multiple support columns 184 are located between the upper portion 180 and the lower portion 182 and connect the upper portion 180 and the lower portion 182. In other words, gaps are formed in the spacer 18 except for the portion where the shaft 162 is disposed. Therefore, the spacer 18 can be made lighter and easier to carry than a simple cylindrical member. As a result, work can be performed smoothly. Furthermore, the spacer 18 includes the opening 186 through which the shaft 162 of the mount device 16 passes. This allows the spacer 18 to be securely fixed between the machine base 14 and the mount device 16 via the shaft 162 of the mount device 16 that penetrates the spacer 18. As a result, even if a relatively large force is applied to the machine base 14, etc., the spacer 18 can be prevented from falling off.

[0025] Second Embodiment Fig. 4 is a diagram showing a spacer 18 according to a second embodiment. In Fig. 4, components equivalent to those described above are denoted by the same reference numerals. In this embodiment, descriptions that overlap with those described above will be omitted.

[0026] The spacer 18 of this embodiment includes an upper portion 180 , a lower portion 182 , a plurality of support posts 184 , an opening 186 , and further includes a center post 194 .

[0027] The center pillar portion 194 is a portion that supports the load together with the multiple support pillar portions 184. The center pillar portion 194 is located in the center of the spacer 18, and is located between the upper portion 180 and the lower portion 182. One end of the center pillar portion 194 is connected to the lower end surface F11 of the upper portion 180. The other end of the center pillar portion 194 is connected to the upper end surface F21 of the lower portion 182.

[0028] A through-hole 196 is formed in the center post portion 194, penetrating the center post portion 194 in the up-down direction. The through-hole 196 extends along the up-down direction. One end of the through-hole 196 communicates with the hollow portion 190 of the upper portion 180. The other end of the through-hole 196 communicates with the hollow portion 192 of the lower portion 182. In this embodiment, the opening 186 includes the hollow portion 190 of the upper portion 180, the hollow portion 192 of the lower portion 182, and the through-hole 196 of the center post portion 194.

[0029] Each of the multiple support pillars 184 is connected to the center pillar portion 194. In other words, each of the multiple support pillars 184 extends to the center pillar portion 194 and is connected to it. The connection portion between the center pillar portion 194 and the support pillars 184 extends from the upper end surface F21 of the lower portion 182 to the lower end surface F11 of the upper portion 180. The connection portion between the support pillars 184 and the upper portion 180 extends from the outer peripheral edge of the lower end surface F11 of the upper portion 180 to the outer surface of the center pillar portion 194. The connection portion between the support pillars 184 and the lower portion 182 extends from the outer peripheral edge of the upper end surface F21 of the lower portion 182 to the outer surface of the center pillar portion 194.

[0030] The center pillar portion 194 has a cylindrical shape, but is not limited to this. The center pillar portion 194 may also be formed by connecting multiple support portions 184 to each other at the center of the spacer 18. The multiple support portions 184 do not have to be connected to the center pillar portion 194.

[0031] As described above, the spacer 18 of this embodiment includes the upper portion 180, the lower portion 182, the plurality of support portions 184, the opening 186, and the center post portion 194. This makes it possible to ensure the durability of the spacer 18 while reducing its weight.

[0032] Third Embodiment Fig. 5 is a diagram showing a spacer 18 according to a third embodiment. In Fig. 5, components equivalent to those described above are denoted by the same reference numerals. In this embodiment, descriptions that overlap with those described above will be omitted.

[0033] The spacer 18 of this embodiment includes an upper portion 180, a lower portion 182, a plurality of support portions 184, and an opening 186, but does not include a center post portion 194. In this embodiment, a grip portion 198 is formed on one of the plurality of support portions 184.

[0034] The gripping portion 198 is located between a through-hole 200 that passes through the support portion 184 in the direction along the circumferential direction D1 of the upper portion 180 (or the lower portion 182 ) and the outer surface F30 of the support portion 184 .

[0035] 6 , instead of the through-hole 200, a recess 202 recessed in a direction along the circumferential direction D1 of the upper portion 180 (or the lower portion 182) may be formed in the support portion 184. In this case, the grip portion 198 is located between the recess 202 and the outer surface F30 of the support portion 184.

[0036] 7, the gripping portion 198 may be a protrusion that protrudes from the support portion 184 in a direction along the circumferential direction D1 of the upper portion 180 (or the lower portion 182). Note that a hole or a recess may be formed in the protrusion.

[0037] Although not shown, the gripping portion 198 may be formed on each of the plurality of support portions 184. Alternatively, although not shown, the gripping portion 198 may be formed on two of the plurality of support portions 184.

[0038] As described above, in the spacer 18 of this embodiment, the grip portion 198 is formed on at least one of the plurality of support portions 184. This makes it easier to carry around and allows for better work.

[0039] <Fourth embodiment> Fig. 8 is a diagram showing a spacer 18 according to a fourth embodiment. In Fig. 8, components equivalent to those described above are denoted by the same reference numerals. In this embodiment, explanations that overlap with those described above will be omitted.

[0040] The spacer 18 of this embodiment includes an upper portion 180, a lower portion 182, a plurality of support posts 184, and an opening 186, but does not include a center post 194. In this embodiment, a first notch 204 is formed in the upper portion 180, and a second notch 206 is formed in the lower portion 182.

[0041] The first cutout 204 extends from the outer peripheral surface F12 of the upper portion 180 to the center of the upper portion 180, and is connected to the hollow portion 190 of the upper portion 180. The first cutout 204 passes through the upper portion 180 in the vertical direction. The shaft 162 of the mounting device 16 can be inserted into the first cutout 204.

[0042] The second cutout 206 extends from the outer peripheral surface F22 of the lower portion 182 to the center of the lower portion 182, and is connected to the hollow portion 192 of the lower portion 182. The second cutout 206 passes through the lower portion 182 in the vertical direction. The shaft 162 of the mounting device 16 can be inserted into the second cutout 206.

[0043] The positions of the first notch 204 and the second notch 206 are formed without deviation in the circumferential direction D1 of the upper side portion 180 or the lower side portion 182. In other words, the direction D10 in which the first notch 204 extends and the direction D20 in which the second notch 206 extends are the same and are substantially parallel to each other.

[0044] 9 is a diagram showing a state in which the spacer 18 according to the fourth embodiment is installed. When the spacer 18 is installed between the machine base 14 and the mount device 16, the shaft 162 of the mount device 16 is disposed in the opening 186.

[0045] The operation of positioning the shaft portion 162 in the opening 186 is performed as follows: First, the shaft portion 162 of the mounting device 16 is passed through the first notch 204 in the upper portion 180 and the second notch 206 in the lower portion 182. Then, the spacer 18 is moved in a direction perpendicular to the extension direction of the shaft portion 162, so that the shaft portion 162 is positioned in the hollow portion 190 in the upper portion 180 and the hollow portion 192 in the lower portion 182. That is, the spacer 18 is moved in the directions D10 and D20 (see FIG. 8 ) in which the first notch 204 and the second notch 206 extend, so that the shaft portion 162 is positioned in the hollow portion 190 in the upper portion 180 and the hollow portion 192 in the lower portion 182.

[0046] As described above, in the spacer 18 of this embodiment, a first notch 204 is formed that extends from the outer peripheral surface F12 of the upper portion 180 to the center of the upper portion 180. In addition, a second notch 206 is formed that extends from the outer peripheral surface F22 of the lower portion 182 to the center of the lower portion 182. This makes it possible to guide the shaft portion 162 to the center of the spacer 18 without having to insert the shaft portion 162 into the opening 186 in the vertical direction. As a result, the workability of positioning the shaft portion 162 relative to the opening 186 is improved.

[0047] Fifth Embodiment Fig. 10 is a diagram showing a spacer 18 according to a fifth embodiment. In Fig. 10, components equivalent to those described above are denoted by the same reference numerals. In this embodiment, descriptions that overlap with those described above will be omitted.

[0048] The spacer 18 of this embodiment includes an upper portion 180, a lower portion 182, a plurality of support posts 184, and an opening 186, but does not include a center post 194. In this embodiment, a first notch 204 is formed in the upper portion 180, and a second notch 206 is formed in the lower portion 182.

[0049] The positions of the first notch 204 and the second notch 206 are formed to be offset in the circumferential direction D1 of the upper side portion 180 or the lower side portion 182. In other words, the direction D10 in which the first notch 204 extends is different from the direction D20 in which the second notch 206 extends. The direction D10 in which the first notch 204 extends and the direction D20 in which the second notch 206 extends are in a twisted positional relationship.

[0050] 11 is a diagram showing a state in which the spacer 18 according to the fifth embodiment is installed. When the spacer 18 is installed between the machine base 14 and the mount device 16, the shaft 162 of the mount device 16 is disposed in the opening 186.

[0051] The portion of shaft portion 162 located in hollow portion 190 of upper portion 180 is in contact with the inner circumferential surface of upper portion 180. The portion of shaft portion 162 located in hollow portion 192 of lower portion 182 is in contact with the inner circumferential surface of lower portion 182. The portion where shaft portion 162 and the inner circumferential surface of upper portion 180 are in contact and the portion where shaft portion 162 and the inner circumferential surface of lower portion 182 are in contact are offset in circumferential direction D1.

[0052] The operation of positioning the shaft portion 162 in the opening 186 is performed as follows. First, as shown in FIG. 12 , the spacer 18 is tilted with respect to the shaft portion 162 of the mounting device 16. In this state, the shaft portion 162 is passed through the first notch 204 in the upper portion 180 and the second notch 206 in the lower portion 182. Thereafter, the spacer 18 is moved in a direction perpendicular to the extension direction of the shaft portion 162, until the shaft portion 162 is positioned in the hollow portion 190 in the upper portion 180 and the hollow portion 192 in the lower portion 182.

[0053] As described above, in the spacer 18 of this embodiment, the direction D10 in which the first notch 204 extends is different from the direction D20 in which the second notch 206 extends. This allows the shaft 162 positioned in the opening 186 of the spacer 18 to be sandwiched between the upper portion 180 and the lower portion 182. As a result, even if vibrations or the like occur in the machine base 14, displacement of the spacer 18 with respect to the shaft 162 can be suppressed.

[0054] Sixth Embodiment Fig. 13 is a diagram showing a spacer 18 according to a sixth embodiment. In Fig. 13, components equivalent to those described above are denoted by the same reference numerals. In this embodiment, descriptions that overlap with those described above will be omitted.

[0055] The spacer 18 of this embodiment includes an upper portion 180, a lower portion 182, a plurality of support posts 184, an opening 186, and a center post 194. In this embodiment, a first notch 204 is formed in the upper portion 180, a second notch 206 is formed in the lower portion 182, and a third notch 208 is formed in the center post 194. In other words, compared to the spacer 18 of the fourth embodiment, the spacer 18 of this embodiment additionally includes the center post 194 and the third notch 208.

[0056] The third notch 208 extends from one end of the center post 194 to the other end thereof, and is connected to the first notch 204 and the second notch 206. One end of the third notch 208 is connected to the first notch 204, and the other end of the third notch 208 is connected to the second notch 206. The shaft 162 of the mounting device 16 can be inserted into the third notch 208.

[0057] As described above, the spacer 18 of this embodiment includes the upper portion 180, the lower portion 182, the plurality of support portions 184, the opening 186, and the center post portion 194. This allows the spacer 18 to be lightweight while still ensuring its durability.

[0058] In addition, the spacer 18 of this embodiment is formed with a first notch 204, a second notch 206, and a third notch 208. This allows the shaft 162 to be guided to the center of the spacer 18 without having to insert the shaft 162 into the opening 186 in the vertical direction. As a result, the workability in positioning the shaft 162 relative to the opening 186 is improved.

[0059] Seventh Embodiment Fig. 14 is a diagram showing a spacer 18 according to a seventh embodiment. In Fig. 14, components equivalent to those described above are denoted by the same reference numerals. In this embodiment, descriptions that overlap with those described above will be omitted.

[0060] The spacer 18 of this embodiment includes an upper portion 180, a lower portion 182, a plurality of support posts 184, an opening 186, and a center post 194. Each of the plurality of support posts 184 has a gripping portion 198 formed thereon.

[0061] In this embodiment, one end of the center pillar portion 194 is located in the hollow portion 190 of the upper portion 180. One end of the center pillar portion 194 is separated from the upper portion 180 by a gap. One end face of the center pillar portion 194 is flush with the upper end face F10 of the upper portion 180, but is not limited to this. One end face of the center pillar portion 194 may also be lower than the upper end face F10 of the upper portion 180.

[0062] The outer diameter of the hollow portion 190 (the inner diameter of the upper portion 180) is larger than the outer diameter of the center pillar portion 194. In other words, the reduced-thickness portion 210 in the upper portion 180 is larger than that in the second embodiment. In this embodiment, the reduced-thickness portion 210 is a hole (through-hole), but is not limited to this. For example, the reduced-thickness portion 210 may be a recess. If the reduced-thickness portion 210 is a recess, one end of the center pillar portion 194 is connected to the lower end surface F11 of the upper portion 180.

[0063] In this embodiment, the other end of the center pillar portion 194 is located in the hollow portion 192 of the lower portion 182. The other end of the center pillar portion 194 is separated from the lower portion 182 by a gap. The other end face of the center pillar portion 194 is flush with the lower end face F20 of the lower portion 182, but is not limited to this. The other end face of the center pillar portion 194 may be higher than the lower end face F20 of the lower portion 182.

[0064] The outer diameter of the hollow portion 192 (the inner diameter of the lower portion 182) is larger than the outer diameter of the center pillar portion 194. In other words, in the lower portion 182, the thickness-reduced portion 212 is larger than in the second embodiment. In this embodiment, the thickness-reduced portion 212 is a hole (through-hole), but is not limited to this. For example, the thickness-reduced portion 212 may be a recess. If the thickness-reduced portion 212 is a recess, the other end of the center pillar portion 194 is connected to the upper end surface F21 of the lower portion 182.

[0065] The thickness-reduced portion 210 in the upper portion 180 may include a first notch 204 (see FIG. 8 ). The thickness-reduced portion 212 in the lower portion 182 may include a second notch 206 (see FIG. 8 ). Alternatively, one of the thickness-reduced portion 210 in the upper portion 180 and the thickness-reduced portion 212 in the lower portion 182 may not be formed. If the thickness-reduced portion 210 is not formed in the upper portion 180, a hollow portion 190 with an outer diameter smaller than the outer diameter of the center post portion 194 is formed in the upper portion 180 (see FIG. 4 ). If the thickness-reduced portion 212 is not formed in the lower portion 182, a hollow portion 192 with an outer diameter smaller than the outer diameter of the center post portion 194 is formed in the lower portion 182 (see FIG. 4 ).

[0066] As described above, in the spacer 18 of this embodiment, either the upper portion 180 or the lower portion 182 has the portions 210, 212 formed with reduced thickness. Also, each of the plurality of support portions 184 has a through-hole 200 formed therein for forming the grip portion 198. This allows the spacer 18 to be lightweight and easy to carry, which results in smooth work.

[0067] According to the above embodiment, the spacer 18 includes an upper portion 180, a lower portion 182, a plurality of support columns 184 located between the upper portion 180 and the lower portion 182 and connecting the upper portion 180 and the lower portion 182, and an opening 186 that passes through the spacer 18 in the vertical direction and through which the shaft 162 of the mounting device 16 is disposed. This allows the spacer 18 to be lightweight and easy to carry. As a result, work can be performed smoothly. Moreover, the spacer 18 can be securely fixed between the machine base 14 and the mounting device 16 via the shaft 162 of the mounting device 16 that passes through the spacer 18. As a result, even if a relatively large force is applied to the machine base 14, etc., the spacer 18 can be prevented from falling off. As such, according to this embodiment, a spacer 18 that is effective for raising the overall height of the industrial machine 12 can be provided.

[0068] The following additional notes are further disclosed regarding the above embodiment.

[0069] (Supplementary Note 1) The spacer (18) of the present disclosure is a spacer arranged between a machine base (14) on which an industrial machine (12) is placed and a mounting device (16) located below the machine base, and includes an upper part (180), a lower part (182), a plurality of support parts (184) located between the upper part and the lower part and connecting the upper part and the lower part, and an opening (186) that passes through the spacer in the vertical direction and in which a shaft part (162) provided on the mounting device is disposed.

[0070] (Supplementary Note 2) The spacer according to Supplementary Note 1 may further include a center column portion (194) located at the center of the spacer and having a through hole (196) extending vertically therethrough, and the through hole may be included in the opening.

[0071] (Supplementary Note 3) In the spacer according to Supplementary Note 2, each of the plurality of support pillars may be connected to the center pillar.

[0072] (Supplementary Note 4) In the spacer according to Supplementary Note 1, at least one of the plurality of support portions may be formed with a grip portion (198).

[0073] (Appendix 5) A spacer as described in Appendix 1, wherein the upper portion has a first notch (204) formed therein, extending from the outer peripheral surface (F12) of the upper portion to the center of the upper portion, and the lower portion has a second notch (206) formed therein, extending from the outer peripheral surface (F22) of the lower portion to the center of the lower portion, and the centers of the upper portion and the lower portion may be included in the opening.

[0074] (Supplementary Note 6) In the spacer according to Supplementary Note 5, the direction (D10) in which the first cutout portion extends and the direction (D20) in which the second cutout portion extends may be different.

[0075] (Appendix 7) The spacer described in Appendix 5 may further include a center column portion located at the center of the spacer and having a through hole formed therein penetrating in the vertical direction, the through hole being included in the opening, and the center column portion may have a third notch portion (208) formed therein that extends from one end of the center column portion to the other end of the center column portion, and the first notch portion and the second notch portion may be connected to the third notch portion.

[0076] (Supplementary Note 8) In the spacer according to Supplementary Note 2, at least one of the upper and lower portions may be formed with a portion (210, 212) having a reduced thickness.

[0077] (Appendix 9) The spacer described in Appendix 1 may further include a center pillar portion located at the center of the spacer and having a through hole formed therethrough in the vertical direction, the through hole being included in the opening, each of the plurality of support pillar portions being connected to the center pillar portion, at least one of the plurality of support pillar portions being formed with a grip portion, and either the upper portion or the lower portion being formed with a portion of reduced thickness.

[0078] (Appendix 10) In the spacer described in Appendix 1, the plurality of support portions are connected to each other at the center of the spacer, and a through hole penetrating in the vertical direction is formed at the location where the plurality of support portions are connected, and the through hole may be included in the opening.

[0079] Although the present disclosure has been described in detail, the present disclosure is not limited to the individual embodiments described above. Various additions, substitutions, modifications, partial deletions, etc. are possible in these embodiments without departing from the gist of the present disclosure or the spirit of the present disclosure derived from the content of the claims and their equivalents. These embodiments can also be implemented in combination. For example, in the above-described embodiments, the order of each operation and the order of each process are shown as examples and are not limited to these. The same applies when numerical values ​​or mathematical expressions are used in the description of the above-described embodiments.

[0080] REFERENCE SIGNS LIST 10... Mechanical system 12... Industrial machine 14... Machine base 16... Mounting device 18... Spacer 140... Lower frame 146... Shaft insertion portion 162... Shaft portion 180... Upper portion 182... Lower portion 184... Support portion 186... Opening 190, 192... Hollow portion 194... Center column portion 196, 200... Through hole 198... Grip portion 202... Recess 204... First notch portion 206... Second notch portion 208... Third notch portion 210, 212... Portion with reduced thickness

Claims

1. A spacer disposed between a machine base on which an industrial machine is placed and a mounting device located below the machine base, the spacer including: an upper portion; a lower portion; a plurality of support columns located between the upper portion and the lower portion and connecting the upper portion and the lower portion; and an opening that penetrates the spacer in the vertical direction and in which a shaft portion provided in the mounting device is disposed.

2. The spacer according to claim 1, further including a central column portion located at the center of the spacer and having a through hole formed therethrough in the vertical direction, the through hole being included in the opening.

3. The spacer according to claim 2, wherein each of the plurality of support columns is connected to the central column portion.

4. The spacer according to claim 1, wherein a gripping portion is formed on at least one of the plurality of support columns.

5. The spacer according to claim 1, wherein a first notch extending from the outer peripheral surface of the upper portion to the center of the upper portion is formed in the upper portion, a second notch extending from the outer peripheral surface of the lower portion to the center of the lower portion is formed in the lower portion, and the centers of the upper portion and the lower portion are included in the opening.

6. The spacer according to claim 5, wherein the direction in which the first notch extends is different from the direction in which the second notch extends.

7. The spacer according to claim 5, further including a central column portion located at the center of the spacer and having a through hole formed therethrough in the vertical direction, the through hole being included in the opening, a third notch extending from one end of the central column portion to the other end of the central column portion being formed in the central column portion, and the first notch and the second notch being connected to the third notch.

8. The spacer according to claim 2, wherein a portion with a reduced thickness is formed in at least one of the upper portion and the lower portion.

9. The spacer according to claim 1, further comprising a central column portion located at the center of the spacer and having a through hole formed therethrough in the vertical direction, the through hole being included in the opening, each of the plurality of support portions being connected to the central column portion, at least one of the plurality of support portions having a gripping portion formed thereon, and a portion having a reduced thickness being formed on either the upper side portion or the lower side portion.

10. The spacer according to claim 1, wherein the plurality of support portions are connected to each other at the center of the spacer, a through hole penetrating in the vertical direction is formed at the portion where the plurality of support portions are connected, and the through hole is included in the opening.

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