Support components

Abstract

Regardless of the magnitude of the vibration, the transmission of the vibration of the supported body to the ground and the transmission of the vibration of the ground to the supported body can be suppressed. According to the solution of the present invention, a supporting member is provided. The supporting member includes an upper member, which includes a load-bearing portion that carries a protrusion protruding downward from the supported body and bears the load of the supported body. The supporting member includes a lower member that is arranged on the ground and carries the upper member. The central portion of the upper member when viewed from above includes a first flexure that bends downward due to the load of the supported body borne by the load-bearing portion. The lower member includes a second flexure that bends downward when pressed by the first flexure that bends downward. A sliding area is formed in the supporting member, and the first flexure that bends downward due to the load of the supported body borne by the load-bearing portion and the second flexure that bends downward when pressed by the first flexure are able to slide in the above-mentioned sliding area.

Description

Technical Field

[0001] The present invention relates to a support member. Background Art

[0002] A supporting member that supports a supported object and suppresses vibration of the supported object is known (for example, see Patent Document 1). The supporting member described in Patent Document 1 includes an upper member having a load-bearing portion that receives a protrusion that protrudes downward from the supported object and bears the load of the supported object; and a lower member disposed on the ground and receiving the upper member. Furthermore, the supporting member described in Patent Document 1 suppresses vibration of the supported object by utilizing frictional attenuation generated on the contact surface between the upper and lower members when the supported object vibrates.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Laid-Open No. 2015-112706 Summary of the Invention

[0006] Problems to be solved by the invention

[0007] The support member described in Patent Document 1 suppresses vibration of the supported body by frictional damping. However, since the upper member is structured so as to simply slide sideways relative to the lower member, it is difficult to obtain the frictional damping effect unless large vibrations are generated.

[0008] An object of the present invention is to provide a support member capable of suppressing the transmission of vibrations of a supported body to the ground and the transmission of vibrations of the ground to the supported body, regardless of the magnitude of the vibrations.

[0009] Means for solving problems

[0010] According to a first embodiment of the present invention, a supporting member is provided. The supporting member includes an upper member, the upper member includes a load-bearing portion, the load-bearing portion carries a protrusion protruding downward from a supported body and bears the load of the supported body. The supporting member includes a lower member that is arranged on the ground and carries the upper member. The upper member includes a first flexure portion in a central portion when viewed from above, which is bent downward due to the load of the supported body borne by the load-bearing portion. The lower member includes a second flexure portion that is pressed downward by the first flexure portion that is bent downward. A sliding area is formed in the supporting member, and the first flexure portion that is bent downward due to the load of the supported body borne by the load-bearing portion and the second flexure portion that is pressed downward by the first flexure portion are able to slide in the above-mentioned sliding area.

[0011] According to the second embodiment of the present invention, a supporting member is provided. The supporting member includes an upper member, the upper member includes a load-bearing portion, the load-bearing portion carries a protrusion protruding downward from a supported body and bears the load of the supported body. The supporting member includes a lower member that is arranged on the ground and carries the upper member. The central portion of the upper member when viewed from above includes a flexure portion that bends downward due to the load of the supported body borne by the load-bearing portion. The upper member includes an abutment portion that abuts against the lower member around the flexure portion. The abutment portion changes its posture due to the downward bending of the flexure portion. A sliding area is formed in the supporting member, and the abutment portion and the lower member, whose posture changes due to the bending of the flexure portion borne by the load-bearing portion, can slide in the above-mentioned sliding area.

[0012] Effects of the Invention

[0013] According to the support member of the present invention, regardless of the magnitude of the vibration, it is possible to suppress the transmission of vibration of the supported body to the ground and the transmission of vibration of the ground to the supported body.

[0014] In the support member of the first embodiment, when the supported object or the ground vibrates, the first and second flexible portions slide within the sliding region. Thus, when the supported object vibrates, the first and second flexible portions slide within the sliding region, thereby suppressing the transmission of vibrations from the supported object to the ground. Furthermore, when the ground vibrates, the first and second flexible portions slide within the sliding region, thereby suppressing the transmission of vibrations from the ground to the supported object.

[0015] Alternatively, when the load-bearing portion is not bearing the load of the supported body, a gap may be formed between the first and second flexible portions of the support member of the first embodiment. Thus, when the protruding portion is placed on the load-bearing portion, a sliding region can be appropriately formed, and the first flexible portion, which is bent downward, and the second flexible portion, which is pressed downward by the first flexible portion, can slide within the sliding region.

[0016] The lower member of the support member of the first embodiment may include a plurality of legs that contact the ground. Furthermore, the lower member may include a recessed portion serving as the second flexure, the recessed portion being surrounded by the plurality of legs. Thus, when the protrusion is placed on the load-bearing portion, the second flexure is pressed by the first flexure, allowing it to bend appropriately.

[0017] Alternatively, the upper member of the support member of the first embodiment may have lower rigidity than the lower member. Thus, when the protrusion is placed on the load-bearing portion, the amount by which the first flexure bends downward can be made different from the amount by which the second flexure bends downward due to being pressed by the first flexure, thereby appropriately forming a sliding region.

[0018] In the second embodiment, when the supported object or the ground vibrates, the contact portion and the lower member slide within the sliding region. Thus, when the supported object vibrates, the contact portion and the lower member slide within the sliding region, thereby preventing the vibration of the supported object from being transmitted to the ground. Furthermore, when the ground vibrates, the contact portion and the lower member slide within the sliding region, thereby preventing the vibration of the ground from being transmitted to the supported object.

[0019] Alternatively, the support members of the first and second embodiments may be provided with a concave engaged portion on either the lower surface of the upper member or the upper surface of the lower member, and a convex engaging portion that engages with the engaged portion on either the lower surface. Thus, when the protrusion is placed on the load-bearing portion, even if the supported object or the floor vibrates, the upper member can be prevented from excessively sliding relative to the lower member.

[0020] Alternatively, the upper and lower members of the support members of the first and second embodiments may be circular with the same outer edges in a plan view. Thus, when a protrusion is placed on the load-bearing portion, a sliding area can be formed at an appropriate position in a plan view.

[0021] The load receiving portion in the support member of the first and second embodiments may be the bottom of a recessed portion into which the protrusion can be inserted. Thus, the protrusion protruding downward from the supported body can be appropriately placed by inserting the protrusion into the recessed portion.

[0022] In addition, the above summary of the invention does not list all the necessary features of the present invention. In addition, sub-combinations of these feature groups may also constitute inventions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a diagram schematically showing an example of how the support member 100 is used.

[0024] Figure 2 This is a perspective view of a state where the upper member 110 and the lower member 120 are separated, as seen from obliquely above.

[0025] Figure 3 This is a perspective view of a state where the upper member 110 and the lower member 120 are separated, as viewed from obliquely below.

[0026] Figure 4 It is a plan view of the upper member 110 as viewed from above and a cross-sectional view showing the AA cross section in the plan view.

[0027] Figure 5 It is a plan view of the lower member 120 as viewed from below and a cross-sectional view showing a BB cross section in the plan view.

[0028] Figure 61 is a cross-sectional view of the support member 100 showing a state in which the load receiving portion 111 does not receive the load of the supported object S. FIG.

[0029] Figure 7 1 is a cross-sectional view of the support member 100 showing a state in which the load receiving portion 111 receives the load of the supported object S. FIG.

[0030] Figure 8 1 is a diagram showing the distribution of contact pressure applied to the lower member 120 when the lower member 120 is pressed by the first bending portion 113 of the upper member 110 that is bent downward.

[0031] Figure 9 1 is a cross-sectional view of the support member 200 showing a state in which the load receiving portion 211 does not receive the load of the supported object S. FIG.

[0032] Figure 10 1 is a cross-sectional view of the support member 200 showing a state in which the load receiving portion 211 receives the load of the supported object S. FIG.

[0033] Figure 11 This diagram shows the distribution of the contact pressure applied to the lower member 220 when the posture of the contact portion 214 changes due to the downward bending of the bending portion 213 . DETAILED DESCRIPTION

[0034] The present invention will be described below by way of embodiments of the invention, but the following embodiments do not limit the invention to the scope of the claims. Furthermore, not all combinations of features described in the embodiments are essential to the solution provided by the invention.

[0035] Figure 1 1 is a diagram schematically showing an example of a usage mode of the support member 100. The support member 100 is a member that supports the object S to be supported. Figure 1 The support member 100 shown supports a machine tool as a supported object S. The machine tool is an example of the supported object S. The support member 100 includes an upper member 110 and a lower member 120. The lower member 120 is disposed on the floor F and places the upper member 110 thereon.

[0036] Figure 2 This is a perspective view of a state where the upper member 110 and the lower member 120 are separated, as seen from obliquely above. Figure 3 This is a perspective view of a state where the upper member 110 and the lower member 120 are separated, as viewed from obliquely below. Figure 4 It is a plan view of the upper member 110 as viewed from above and a cross-sectional view showing the AA cross section in the plan view. Figure 5 It is a plan view of the lower member 120 as viewed from below and a cross-sectional view showing a BB cross section in the plan view.

[0037] The upper member 110 includes a load-bearing portion 111, which receives a protrusion P protruding downward from the supported object S and bears the load of the supported object S. For example, if the supported object S is a machine tool, the load-bearing portion 111 of the upper member 110 receives a height adjustment bolt protruding downward from the machine tool and bears the load of the machine tool. The height adjustment bolt is an example of the protrusion P.

[0038] like Figure 4 As shown, the upper part 110 is a circular part in a plan view. Figure 5 As shown in FIG. 1 , the lower part 120 is a circular part in a plan view. Figure 2 as well as Figure 3 As shown, the outer edges of the upper member 110 and the lower member 120 have the same diameter when viewed from above.

[0039] like Figure 2 as well as Figure 4 As shown, a recess 115 into which the protrusion P of the supported body S can be inserted is formed in the center of the upper portion of the upper member 110 in a plan view. The load receiving portion 111 is the bottom of the recess 115 .

[0040] like Figure 3 as well as Figure 4 As shown, a concave fitting portion 112 is provided on the lower surface of the upper member 110. Figure 2 as well as Figure 5 As shown in FIG, a convex fitting portion 121 is provided on the upper surface of the lower member 120 to be fitted with the fitted portion 112 of the upper member 110. Figure 3 as well as Figure 4 The upper part 110 shown is provided with a circular fitted portion 112 having a diameter sufficiently larger than the diameter of the load receiving portion 111 in a plan view. Figure 2 as well as Figure 5 The lower member 120 shown is provided with a fitting portion 121 having a diameter slightly smaller than the diameter of the fitted portion 112 in a plan view, so as to be able to fit with the fitted portion 112 of the upper member 110. Alternatively, a concave fitted portion may be provided on the upper surface of the lower member 120. In this case, a convex fitting portion is provided on the lower surface of the upper member 110 to fit with the fitted portion of the lower member 120.

[0041] like Figure 3 as well as Figure 5 As shown, the lower member 120 includes a plurality of legs 122 that come into contact with the ground F. A recessed portion 124 that is recessed upward from the lower surface of the legs 122 is formed in the central portion surrounded by the plurality of legs 122 in a plan view. Figure 3 as well as Figure 5The lower member 120 shown has three legs 122 provided at equal intervals in the circumferential direction, excluding the central region in a plan view.

[0042] like Figure 4 As shown in FIG. 1 , the upper member 110 includes a first bending portion 113 at its center portion in a plan view. The first bending portion 113 bends downward due to the load of the supported body S received by the load receiving portion 111. Figure 5 As shown, the lower member 120 includes a recessed portion 124 in a portion surrounded by the plurality of legs 122 as a second bending portion 123 that is pressed by the first bending portion 113 of the upper member 110 that bends downward.

[0043] Figure 6 1 is a cross-sectional view of the support member 100 showing a state in which the load receiving portion 111 does not receive the load of the supported object S. FIG. Figure 7 1 is a cross-sectional view of the support member 100 showing a state in which the load receiving portion 111 receives the load of the supported object S. FIG. Figure 8 1 is a diagram showing the distribution of contact pressure applied to the lower member 120 when the lower member 120 is pressed by the first bending portion 113 of the upper member 110 that bends downward.

[0044] When the supported body S is placed on the floor F, the support member 100 is placed directly below the protrusion P that protrudes downward from the supported body S, with the engaged portion 112 of the upper member 110 engaged with the engaging portion 121 of the lower member 120. Figure 1 In the illustrated example, the support member 100 is disposed immediately below the height adjustment bolts protruding downward from the machine tool.

[0045] When the load receiving portion 111 of the upper member 110 does not bear the load of the supported body S, as shown in FIG. Figure 6 As shown, a gap G1 is formed between the lower surface of the first flexible portion 113 of the upper member 110 and the upper surface of the second flexible portion 123 of the lower member 120 .

[0046] The protrusion P of the supported body S is placed on the load receiving portion 111 of the upper member 110. Figure 7 As shown, the load receiving portion 111 receives the load L of the supported body S, thereby causing the first flexure portion 113 of the upper member 110 to bend downward. When the first flexure portion 113 of the upper member 110 bends downward, the second flexure portion 123 of the lower member 120 is pressed by the first flexure portion 113 of the upper member 110 and bends downward. Figure 8As shown, in the second flexure 123 of the lower member 120, a higher contact pressure is applied to the region R2 corresponding to the position of the leg 122 than to the region R1 not corresponding to the position of the leg 122 in a plan view. By setting the wall thickness, material, etc. of the upper member 110 and the lower member 120 so that the rigidity of the lower member 120 is lower than that of the upper member 110, it is possible to achieve Figure 8 The distribution of contact pressure is shown.

[0047] Furthermore, the support member 100 is provided with a sliding area SA1 in which the first flexible portion 113 of the upper member 110, which is bent downward, and the second flexible portion 123 of the lower member 120, which is pressed downward by the first flexible portion 113, can slide. In the support member 100 with the sliding area SA1 formed, when the supported object S vibrates, the first flexible portion 113 and the second flexible portion 123 slide within the sliding area SA1, thereby suppressing the transmission of vibrations of the supported object S to the floor surface F. Furthermore, in the support member 100 with the sliding area SA1 formed, when the floor surface F vibrates, the first flexible portion 113 and the second flexible portion 123 slide within the sliding area SA1, thereby suppressing the transmission of vibrations of the floor surface F to the supported object S.

[0048] As described above, the support member 100 includes the upper member 110, which includes the load-bearing portion 111. The load-bearing portion 111 receives the protrusion P that protrudes downward from the supported body S and receives the load L of the supported body S. Furthermore, the support member 100 includes the lower member 120, which is placed on the ground F and receives the upper member 110. The upper member 110 has a first flexible portion 113 in its center portion when viewed from above, which is bent downward by the load L of the supported body S received by the load-bearing portion 111. The lower member 120 has a second flexible portion 123 that is pressed downward by the downwardly-bending first flexible portion 113. The support member 100 is formed with a sliding area SA1, in which the first flexible portion 113, which is bent downward by the load receiving portion 111 in response to the load L of the supported object S, and the second flexible portion 123, which is pressed downward by the first flexible portion 113, can slide. This prevents the vibration of the supported object S from being transmitted to the floor F, and the vibration of the floor F from being transmitted to the supported object S, regardless of the magnitude of the vibration.

[0049] Furthermore, the support member 100 is configured such that when the supported object S or the floor surface F vibrates, the first flexible portion 113 and the second flexible portion 123 slide within the sliding area SA1. Thus, when the supported object S vibrates, the first flexible portion 113 and the second flexible portion 123 slide within the sliding area SA1, thereby suppressing the transmission of vibrations of the supported object S to the floor surface F. Furthermore, when the floor surface F vibrates, the first flexible portion 113 and the second flexible portion 123 slide within the sliding area SA1, thereby suppressing the transmission of vibrations of the floor surface F to the supported object S.

[0050] Furthermore, a gap G1 can be formed between the first flexible portion 113 and the second flexible portion 123 when the load receiving portion 111 is not receiving the load L of the supported object S. Thus, when the protrusion P is placed on the load receiving portion 111, a sliding area SA1 can be appropriately formed in which the first flexible portion 113 and the second flexible portion 123 can slide.

[0051] Furthermore, the lower member 120 may include a plurality of legs 122 that come into contact with the floor F. Furthermore, the lower member 120 may include a recessed portion 124 surrounded by the plurality of legs 122 as the second flexible portion 123. Thus, when the protrusion P is placed on the load-bearing portion 111, the first flexible portion 113 presses against the protrusion P, causing the second flexible portion 123 to bend appropriately.

[0052] Furthermore, the rigidity of the upper member 110 may be lower than that of the lower member 120. Thus, when the protrusion P is placed on the load receiving portion 111, the amount by which the first flexible portion 113 and the second flexible portion 123 bend downward can be made different, thereby appropriately forming the sliding area SA1.

[0053] Alternatively, a concave engaged portion may be provided on either the lower surface of the upper member 110 or the upper surface of the lower member 120, and a convex engaging portion that engages with the engaged portion may be provided on the other. This prevents the upper member 110 from excessively sliding relative to the lower member 120 even if the supported object S or the floor F vibrates when the protrusion P is placed on the load-bearing portion 111.

[0054] Furthermore, the upper member 110 and the lower member 120 may both be circular with the same outer diameter in a plan view. Therefore, when the protrusion P is placed on the load receiving portion 111 , the sliding area SA1 can be formed at an appropriate position in a plan view.

[0055] The load receiving portion 111 may be the bottom portion of a recessed portion 115 into which the protrusion P can be inserted. Thus, by inserting the protrusion P protruding downward from the supported body S into the recessed portion 115 , the protrusion P can be appropriately placed.

[0056] Figures 9 to 11 It is a diagram showing a support member 200 according to another embodiment. Figure 9 2 is a cross-sectional view of the support member 200 showing a state in which the load receiving portion 211 does not receive the load of the supported object S. The support member 200 is a member that supports the supported object S. The support member 200 includes an upper member 210 and a lower member 220 .

[0057] The upper member 210 includes a load receiving portion 211 that receives a protrusion P protruding downward from the supported body S and receives the load of the supported body S. The lower member 220 is disposed on the floor F and receives the upper member 210 .

[0058] The upper member 210 is a member having a circular shape when viewed from above, similar to the upper member 110 of the support member 100. The lower member 220 is a member having a circular shape when viewed from above, similar to the lower member 120 of the support member 100. Furthermore, the upper member 210 and the lower member 220 are similar to the upper member 110 and the lower member 120 of the support member 100, and have the same outer edge diameter when viewed from above.

[0059] A recess 215 into which the protrusion P of the supported body S can be inserted is formed in the center of the upper portion of the upper member 210 in a plan view. The load receiving portion 211 is the bottom of the recess 215 .

[0060] A concave fitting portion 212 is provided on the lower surface of the upper member 210. On the other hand, a convex fitting portion 221 that fits with the fitting portion 212 of the upper member 210 is provided on the upper surface of the lower member 220. Figure 9 The upper member 210 shown is provided with a circular engaged portion 212 having a diameter sufficiently larger than the diameter of the load-bearing portion 211 when viewed from above. Meanwhile, the lower member 120 is provided with an engaging portion 221 having a diameter slightly smaller than the diameter of the engaged portion 212 when viewed from above, so as to be able to engage with the engaged portion 212 of the upper member 210. Alternatively, a concave engaged portion may be provided on the upper surface of the lower member 220. In this case, a convex engaging portion is provided on the lower surface of the upper member 210 to engage with the engaged portion of the lower member 220.

[0061] The lower member 120 includes a plurality of legs 222 that come into contact with the ground F. Figure 9 The lower member 220 shown has three legs 222 provided at equal intervals in the circumferential direction except for the central portion in a plan view.

[0062] The upper member 210 has a flexure 213 in its center portion when viewed from above, which flexes downward due to the load of the supported object S received by the load receiving portion 211. Furthermore, the upper member 210 has a contact portion around the flexure 213, which abuts against the flat surface 225 of the lower member 220. The contact portion 214 changes its position as the flexure 213 flexes downward.

[0063] Figure 10 1 is a cross-sectional view of the support member 200 showing a state in which the load receiving portion 211 receives the load L of the supported object S. FIG. Figure 11 1 and 2 are diagrams showing the distribution of the contact pressure applied to the lower member 220 when the posture of the contact portion 214 changes due to the downward bending of the bending portion 213 .

[0064] When the supported body S is placed on the floor F, the support member 200 is placed directly below the protrusion P protruding downward from the supported body S with the fitting portion 221 of the lower member 220 fitted into the fitted portion 212 of the upper member 210 .

[0065] When the load receiving portion 211 of the upper member 210 does not receive the load L of the supported body S, as shown in FIG. Figure 9 As shown, a gap G2 is formed between the lower surface of the flexure 213 of the upper member 210 and the upper surface of the lower member 220. The gap G2 is set to a size such that the lower surface of the flexure 213 of the upper member 210 and the upper surface of the lower member 220 do not come into contact with each other due to the load L of the supported body S being received by the load receiving portion 211 of the upper member 210. In addition, when the load receiving portion 211 of the upper member 210 does not receive the load L of the supported body S, as shown in FIG. Figure 9 As shown, the entire lower surface of the contact portion 214 of the upper member 210 contacts the flat surface portion 225 of the lower member 220 .

[0066] The protrusion P of the supported body S is placed on the load receiving portion 211 of the upper member 210. Figure 10 As shown, the load receiving portion 211 receives the load L of the supported body S, and the flexure portion 213 of the upper member 210 flexes downward. Even if the flexure portion 213 of the upper member 210 flexes downward, a gap G3 smaller than the gap G2 is formed between the lower surface of the flexure portion 213 of the upper member 210 and the upper surface of the lower member 220. The contact portion 214 of the upper member 210 is pressed radially outward in a plan view because the lower surface of the flexure portion 213 of the upper member 210 does not contact the upper surface of the lower member 220. Figure 10The radially outer portion of the lower surface of the contact portion 214 of the upper part 210 is separated from the flat portion 225 of the lower part 220 and floats, and the radially inner portion of the lower surface of the contact portion 214 contacts the flat portion 225. At this time, for the flat portion 225 of the lower part 220, as shown in FIG. Figure 11 As shown, no contact pressure is applied to a region R3 that is not in contact with the contact portion 214 of the upper member 210 , and contact pressure is applied to a region R4 that is in contact with the contact portion 214 .

[0067] Furthermore, the support member 200 is formed with a sliding area SA2 in which the contact portion 214, whose posture changes as the flexible portion 213 of the upper member 210 flexes, and the flat surface portion 225 of the lower member 220 can slide. When the supported object S vibrates in the support member 200 with the sliding area SA2 formed, the contact portion 214 and the flat surface portion 225 of the lower member 220 slide within the sliding area SA2, thereby suppressing the transmission of vibrations of the supported object S to the floor F. Furthermore, when the floor F vibrates in the support member 200 with the sliding area SA2 formed, the contact portion 214 and the flat surface portion 225 of the lower member 220 slide within the sliding area SA2, thereby suppressing the transmission of vibrations of the floor F to the supported object S.

[0068] As described above, the support member 200 includes the upper member 210, which includes the load-bearing portion 211. This load-bearing portion 211 supports the protrusion P that protrudes downward from the supported body S and supports the load L of the supported body S. Furthermore, the support member 200 includes the lower member 220, which is placed on the ground F and supports the upper member 210. The upper member 210 includes a flexible portion 213 in its central portion when viewed from above, which is bent downward by the load L of the supported body S supported by the load-bearing portion 211. Furthermore, the upper member 210 includes a contact portion 214 around the flexible portion 213, which abuts against the lower member 220. The contact portion 214 changes its posture as the flexible portion 213 flexes downward. The support member 200 is formed with a sliding area SA2, in which the contact portion 214 and the lower member 220, whose posture changes due to the deflection of the flexure portion 213 while the load receiving portion 211 receives the load L of the supported body S, can slide. This prevents the vibration of the supported body S from being transmitted to the floor F, and the vibration of the floor F from being transmitted to the supported body S, regardless of the magnitude of the vibration.

[0069] Furthermore, when the supported object S or the floor F vibrates, the contact portion 214 and the lower member 220 slide in the sliding area SA2. Thus, when the supported object S vibrates, the contact portion 214 and the lower member 220 slide in the sliding area SA2, thereby suppressing the transmission of vibrations of the supported object S to the floor F. Furthermore, when the floor F vibrates, the contact portion 214 and the lower member 220 slide in the sliding area SA2, thereby suppressing the transmission of vibrations of the floor F to the supported object S.

[0070] Alternatively, a concave engaged portion may be provided on either the lower surface of the upper member 210 or the upper surface of the lower member 220, and a convex engaging portion that engages with the engaged portion may be provided on the other. This prevents the upper member 210 from excessively sliding relative to the lower member 220 even when the supported object S or the floor F vibrates when the protrusion P is placed on the load-bearing portion 211.

[0071] Furthermore, the upper member 210 and the lower member 220 may both be circular with the same outer diameter in a plan view. Therefore, when the protrusion P is placed on the load receiving portion 211 , the sliding area SA2 can be formed at an appropriate position in a plan view.

[0072] The load receiving portion 211 may be the bottom portion of the recessed portion 215 into which the protrusion P can be inserted. Thus, by inserting the protrusion P protruding downward from the supported body S into the recessed portion 215 , the protrusion P can be appropriately placed.

[0073] The present invention has been described above using embodiments, but the technical scope of the present invention is not limited to the scope described in the above embodiments. It is obvious to those skilled in the art that various changes or improvements can be made to the above embodiments. It is clear from the description of the scope of the patent claim that the manner in which such changes or improvements are made is also included in the technical scope of the present invention. In addition, the disclosure of all documents cited in the above embodiments, etc., cited as Japanese patent application No. 2020-215513, is incorporated herein by reference as part of the description of this document.

[0074] Explanation of symbols

[0075] 100: Supporting member; 110: Upper member; 111: Load-bearing portion; 112: Engaged portion; 113: First flexure portion; 115: Recessed portion; 120: Lower member; 121: Engaging portion; 122: Leg portion; 123: Second flexure portion; 124: Recessed portion; 200: Supporting member; 210: Upper member; 211: Load-bearing portion; 212: Engaged portion; 213: Flexure portion; 214: Abutting portion; 215: Recessed portion; 220: Lower member; 221: Engaging portion; 222: Leg portion; 225: Plane portion; F: Ground; G1: Gap; G2: Gap; G3: Gap; L: Load; P: Protrusion; R1: Region; R2: Region; R3: Region; R4: Region; S: Supported body; SA1: Sliding region; SA2: Sliding region.

Claims

1. A supporting member comprising: an upper member including a load receiving portion on which a protrusion protruding downward from a supported body is placed and on which a load of the supported body is received; and The lower part is placed on the ground and carries the upper part. The upper member includes a first flexible portion at a center portion thereof in a plan view, and the first flexible portion is bent downward by the load of the supported body received by the load receiving portion. The lower member includes a second flexible portion that is pressed by the first flexible portion that is bent downward and is bent downward. The support member has a sliding region formed therein, wherein the first flexible portion, which is bent downward when the load receiving portion receives the load of the supported body, and the second flexible portion, which is bent downward when pressed by the first flexible portion, are able to slide.

2. The support member according to claim 1, wherein When the supported object or the floor vibrates, the first flexible portion and the second flexible portion slide in the sliding region.

3. The support member according to claim 1, wherein When the load receiving portion does not receive the load of the supported body, a gap is formed between the first flexible portion and the second flexible portion.

4. The support member according to claim 2, wherein: When the load receiving portion does not receive the load of the supported body, a gap is formed between the first flexible portion and the second flexible portion.

5. The support member according to claim 1, wherein The lower part has: a plurality of legs in contact with the ground; and The recessed portion as the second flexible portion is surrounded by the plurality of leg portions. The support member according to claim 2 , wherein: The lower part has: a plurality of legs in contact with the ground; and The recessed portion as the second flexible portion is surrounded by the plurality of leg portions.

7. The support member according to claim 3, wherein: The lower part has: a plurality of legs in contact with the ground; and The recessed portion serving as the second flexible portion is surrounded by the plurality of leg portions.

8. The support member according to claim 4, wherein The lower part has: a plurality of legs in contact with the ground; and The recessed portion as the second flexible portion is surrounded by the plurality of leg portions.

9. The support member according to claim 1, wherein The upper member has a lower rigidity than the lower member.

10. The support member according to claim 2, wherein: The upper member has a lower rigidity than the lower member.

11. The support member according to claim 3, wherein The upper member has a lower rigidity than the lower member.

12. The support member according to claim 4, wherein The upper member has a lower rigidity than the lower member.

13. The support member according to claim 5, wherein The upper member has a lower rigidity than the lower member.

14. The support member according to claim 6, wherein The upper member has a lower rigidity than the lower member.

15. The support member according to claim 7, wherein The upper member has a lower rigidity than the lower member.

16. The support member according to claim 8, wherein The upper member has a lower rigidity than the lower member.

17. A supporting member comprising: an upper member including a load receiving portion on which a protrusion protruding downward from a supported body is placed and on which a load of the supported body is received; and The lower part is placed on the ground and carries the upper part. The upper part has: a flexure portion, the central portion of which, when viewed from above, is bent downward due to the load of the supported body borne by the load receiving portion; and The contact portion contacts the lower member at a portion surrounding the bent portion. The contact portion changes its posture by bending downwardly through the bending portion. The support member has a sliding region formed therein, and the contact portion and the lower member are capable of sliding in the sliding region. The flexible portion is bent due to the load receiving portion receiving the load of the supported body, and the posture of the contact portion and the lower member are changed.

18. The support member according to claim 17, wherein: When the supported object or the floor surface vibrates, the contact portion and the lower member slide in the sliding region.

19. The support member according to any one of claims 1 to 18, wherein A concave fitted portion is provided on one of the lower surface of the upper member and the upper surface of the lower member, and a convex fitting portion that fits with the fitted portion is provided on the other.

20. The support member according to any one of claims 1 to 18, wherein The upper member and the lower member are both circular in shape with outer edges having the same diameter in a plan view.

21. The support member according to claim 19, wherein The upper member and the lower member are both circular in shape with outer edges having the same diameter in a plan view.

22. The support member according to any one of claims 1 to 18, wherein The load receiving portion is a bottom portion of a recessed portion into which the protruding portion can be inserted.

23. The support member according to claim 19, wherein The load receiving portion is a bottom portion of a recessed portion into which the protruding portion can be inserted.

24. The support member according to claim 20, wherein The load receiving portion is a bottom portion of a recessed portion into which the protruding portion can be inserted.

25. The support member according to claim 21, wherein The load receiving portion is a bottom portion of a recessed portion into which the protruding portion can be inserted.

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