WO2023007703A1 - 構造体 - Google Patents

構造体 Download PDF

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Publication number
WO2023007703A1
WO2023007703A1 PCT/JP2021/028338 JP2021028338W WO2023007703A1 WO 2023007703 A1 WO2023007703 A1 WO 2023007703A1 JP 2021028338 W JP2021028338 W JP 2021028338W WO 2023007703 A1 WO2023007703 A1 WO 2023007703A1
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WO
WIPO (PCT)
Prior art keywords
pressure receiving
elastic
receiving portion
frame
pair
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/028338
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English (en)
French (fr)
Japanese (ja)
Inventor
大彰 夏目
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nature Architects Inc
Original Assignee
Nature Architects Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nature Architects Inc filed Critical Nature Architects Inc
Priority to EP21951902.2A priority Critical patent/EP4379230A4/en
Priority to PCT/JP2021/028338 priority patent/WO2023007703A1/ja
Priority to JP2021560260A priority patent/JPWO2023007703A1/ja
Priority to US18/292,502 priority patent/US20240344579A1/en
Priority to JP2021172306A priority patent/JP7049022B1/ja
Publication of WO2023007703A1 publication Critical patent/WO2023007703A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/373—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
    • F16F3/08—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
    • F16F3/087—Units comprising several springs made of plastics or the like material
    • F16F3/0873—Units comprising several springs made of plastics or the like material of the same material or the material not being specified
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/373—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
    • F16F1/3732—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape having an annular or the like shape, e.g. grommet-type resilient mountings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/373—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
    • F16F1/377—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape having holes or openings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
    • F16F2228/06—Stiffness
    • F16F2228/063—Negative stiffness

Definitions

  • This disclosure relates to structures.
  • a structure comprising a pressure receiving portion that receives an external pressing force or a reaction force due to the pressing force, a frame; a first elastic portion connected to the pressure receiving portion and the frame portion and having positive rigidity in an arbitrary displacement range of the pressure receiving portion; a second elastic portion connected to the pressure receiving portion and to the frame portion and having negative rigidity within a predetermined displacement range of the pressure receiving portion; a deformation suppressing portion connected to the frame portion and suppressing deformation of the frame portion due to deformation of the second elastic portion due to displacement of the pressure receiving portion;
  • FIG. 1 is an external perspective view of a structure 20 of an example
  • FIG. 4 is a front view of the structure 20
  • FIG. FIG. 4 is a front view of structures 20A to 20D of comparative examples
  • FIG. 7 is an explanatory diagram showing an example of the relationship between the downward pressing force applied to the pressure receiving portion 21 from the outside and the displacement of the pressure receiving portion 21 from the initial position in each of the structures 20A to 20D of the comparative example
  • FIG. 4 is an explanatory diagram showing how a structure 20B is deformed
  • FIG. 4 is an explanatory diagram showing how the structure 20 is deformed
  • FIG. 5 is an explanatory diagram showing an example of the relationship between the downward pressing force applied to the pressure receiving portion 21 from the outside and the displacement of the pressure receiving portion 21 from the initial position in each of the structures 20, 20A, and 20B of the example and the comparative example;
  • FIG. 4 is an explanatory diagram showing how a structure 20B is deformed; It is a front view of structure 120 of a modification.
  • FIG. 10 is an explanatory diagram showing an example of the relationship between the downward pressing force (load) that the pressure receiving portion 21 receives from the outside and the displacement of the pressure receiving portion 21 from the initial position in the structure 120 of the modified example; It is a front view of structure 220 of a modification. It is a front view of structure 320 of a modification.
  • FIG. 1 is an external perspective view of a structure 20 as an example of the present disclosure
  • FIG. 2 is a front view of the structure 20 of the example.
  • the left-right direction (X-axis direction), the front-rear direction (Y-axis direction), and the up-down direction (Z-axis direction) are as shown in FIGS.
  • the structure 20 of the embodiment is, for example, integrally formed by injection molding, blow molding, extrusion molding, or 3D printing of a resin material, or casting, forging, pressing, cutting, extrusion molding, or 3D printing of a metal material. It is configured as a member. As an example, this structure 20 is supported by the base member 10 as shown in FIG.
  • the structure 20 includes a pressure receiving portion 21, a frame portion 22, a pair of elastic portions (first elastic portion) 26, and a pair of elastic portions (second elastic portion) 30. , and a pair of beam portions (deformation suppressing portions) 34 .
  • This structure 20 is a mirror image (plane symmetry) with respect to a predetermined plane Pyz (see FIG. 2) which is a YZ plane passing through the center of gravity of the structure 20, and the depth of each part (the length in the front-rear direction) is formed so as to be constant.
  • the pressure-receiving portion 21 is located in the center portion in the left-right direction of the structure 20, and the upper surface 21a of the pressure-receiving portion 21 is formed as a flat surface extending in the left-right direction.
  • the upper surface 21a functions as a pressure receiving surface that receives a downward pressing force (load) from the outside.
  • the frame portion 22 has a bottom portion 23 and a pair of side wall portions 24 .
  • the bottom portion 23 is formed to extend in the left-right direction, and a lower surface 23 a of the bottom portion 23 is placed (abutted) or fixed on the base member 10 .
  • the pair of side wall portions 24 are formed to extend upward from corresponding end portions of the bottom portion 23 in the left-right direction.
  • the pair of elastic portions 26 extend from the lower end portion of the pressure receiving portion 21 and from the center portion of the bottom portion 23 in the left-right direction. It is formed so as to extend away from a predetermined plane Pyz in a semicircular shape toward the central portion from a connection portion (lower end portion) with the bottom portion 23 .
  • Each of the pair of elastic portions 30 extends from the lower end portion of the pressure receiving portion 21 and from the upper end portion of the corresponding side wall portion 24 , and extends from the connecting portion with the pressure receiving portion 21 to the connecting portion with the side wall portion 24 . It is formed so as to extend obliquely downward in a sine wave shape.
  • the pair of beam portions 34 each have a first beam portion 35, a second beam portion 36, and two connecting portions 37.
  • the first beam portion 35 is formed to extend in the left-right direction from the side portion of the pressure receiving portion 21 and extend to a position slightly farther from the predetermined plane Pyz than the side wall portion 24 .
  • the second beam portion 36 is formed to extend downward from the end of the corresponding first beam portion 35 farther from the pressure receiving portion 21 .
  • the two connecting portions 37 are vertically spaced apart from the lower end portion of the corresponding second beam portion 36 and the vicinity of the upper end portion of the corresponding side wall portion 24 (near the connecting portion with the elastic portion 30). It is formed so as to be connected in the direction.
  • the number of the communication portions 37 is not limited to two, and may be one or may be three or more.
  • FIG. 3A to 3D are front views of respective structural bodies 20A to 20D of comparative examples, and FIG. 4 is an explanatory diagram showing an example of a relationship between a pressing force (load) and a displacement of the pressure receiving portion 21 from the initial position;
  • FIG. A structure 20A of FIG. 3A is a structure in which the pair of beams 34 are removed from the structure 20 of the embodiment and the frame 22 is regarded as a rigid body (an object that does not deform even when force is applied).
  • a structure 20B in (B) is a structure obtained by removing the pair of beams 34 from the structure 20 of the embodiment, and structures 20C and 20D in FIGS. In this structure, the thickness (the length in the left-right direction) of the side wall portion 24 of the frame portion 22 is about twice or four times that of the structure 20B of (B).
  • the structure 20A of the comparative example in FIG. 3(A) when a downward pressing force (load) acts on the pressure receiving portion 21 (upper surface 21a) from the outside, the pair of elastic portions 26 and the pair of elastic portions 26 and the pair of The second elastic portion deforms.
  • the pair of elastic portions 26 has positive rigidity in an arbitrary displacement range of the pressure receiving portion 21, and the pair of elastic portions 30 has negative rigidity in the displacement range Rzs1 of the pressure receiving portion 21 and positive rigidity in other displacement ranges.
  • the pair of elastic portions 26 and the pair of elastic portions 30 are connected in parallel, and the sum of the rigidity of these two elastic portions 26 and 30 determines the rigidity of the structure 20A.
  • the structural body 20A achieves rigidity (for example, substantially zero rigidity) whose absolute value is sufficiently lower in the displacement range Rzs1 of the pressure receiving portion 21 than in the other displacement ranges. can be done.
  • rigidity for example, substantially zero rigidity
  • the rigidity of each structure represented by the slope of each line in FIG. 4 in the case of the structure 20B in FIG.
  • the difference in the slope of the dashed line (that is, the difference in stiffness) between Rzs1 and other displacement ranges is small, and it is difficult to say that the displacement range Rzs1 of the pressure receiving portion 21 achieves a stiffness with a sufficiently low absolute value. .
  • the reason for this is as follows. FIG.
  • FIG. 5 is an explanatory diagram showing how the structure 20B is deformed.
  • the dashed line indicates the state when the structure 20B is not deformed
  • the solid line indicates the state when the structure 20B is deformed.
  • a force F1 directed outward acts, and the upper end portions of the pair of side wall portions 24 are deformed outward relatively greatly.
  • the pair of elastic portions 30 cannot exhibit appropriate negative rigidity in the displacement range Rzs1 of the pressure receiving portion 21, and the structural body 20B cannot achieve rigidity with a sufficiently low absolute value.
  • the thickness of the side wall portion 24 of the frame portion 22 is increased as in the structures 20C and 20D shown in FIGS.
  • the pair of elastic portions 30 deform accordingly, deformation of the upper end portions of the pair of side wall portions 24 due to the deformation can be suppressed.
  • the pair of elastic portions 30 can exhibit appropriate negative rigidity in the displacement range Rzs1 of the pressure receiving portion 21 compared to the structure 20B.
  • the characteristics of the structures 20C and 20D are brought closer to the characteristics of the structure 20A (see the solid line) than the characteristics of the structure 20B (see the broken line). can be done. However, in these cases, the sizes of the structures 20C and 20D become large, so in the case where the design space for installing or embedding the structures is restricted, the structures may not be mounted.
  • FIG. 6 is an explanatory diagram showing how the structure 20 deforms
  • FIG. 7 shows the downward pressing force (load) applied to the pressure receiving portion 21 from the outside in the structures 20, 20A, and 20B of the example and the comparative example. ) and the displacement of the pressure receiving portion 21 from the initial position.
  • the dashed line shows the appearance when the structure 20 is not deformed
  • the solid line shows the appearance when the structure 20 is deformed.
  • the structure 20B of the comparative example is deformed (see FIG. 5).
  • the force F1 directed outward acts on the upper end portions of the pair of side wall portions 24 from the pair of elastic portions 30, the pressure receiving portion 21 and the upper end portions of the pair of side wall portions 24 A force F2 that cancels at least part of the force F1 acts on the upper ends of the pair of side wall portions 24 from the pair of beam portions 34 due to deformation accompanied by bending of the pair of beam portions 34 connected to the pair of side wall portions 24. It is possible to suppress the deformation of the upper end portion of the outside. Thereby, the pair of elastic portions 30 can exhibit appropriate negative rigidity in the displacement range Rzs2 of the pressure receiving portion 21 . As a result, as shown by the solid and broken lines in FIG.
  • the absolute value of the displacement range Rzs2 of the pressure receiving portion 21 is larger than that of the other displacement ranges in comparison with the structural body 20B of the comparative example. can achieve sufficiently low stiffness (eg, near zero stiffness).
  • the pair of beam portions 34 also have positive rigidity within an arbitrary displacement range of the pressure receiving portion 21 . Therefore, the structural body 20 of the example and the structural body 20A of the comparative example have different values of total positive stiffness, and this causes the displacement range Rzs2 in the structural body 20 of the example and the It differs from the displacement range Rzs1.
  • the displacement range in which sufficiently low rigidity can be achieved can be adjusted by appropriately setting the rigidity of each of the elastic portions 26 and 30 and the beam portion 34 and configuring them.
  • the Y axis When the pressure-receiving portion 21 is pressed from the outside, such as when it is slightly tilted, the pressure-receiving portion 21 is unintentionally displaced, and the pair of elastic portions 26 and the pair of elastic portions 30 are unintentionally deformed.
  • the pressure receiving portion 21 may rotate around the Y-axis and the pair of elastic portions 26 and the pair of elastic portions 30 may deform differently from each other.
  • the elastic portion 30 of the structure 20B does not appropriately switch between the positive stiffness and the negative stiffness, and it becomes more difficult to achieve a stiffness with a sufficiently low absolute value in the displacement range Rzs1 of the pressure receiving portion 21.
  • the structures 20A, 20C, and 20D can be similarly considered.
  • the pair of beam portions 34 connected to the upper ends of the pair of side wall portions 24 are also connected to the side portions of the pressure receiving portion 21, so that the pressure receiving portion 21 is not displaced unintentionally.
  • the frame portion 22 in addition to being provided with the pressure receiving portion 21, the frame portion 22, the pair of elastic portions 26, and the pair of elastic portions 30, they are connected to the side portions of the pressure receiving portion 21 and correspond to each other.
  • the frame portion 22 supporting the elastic portion 30 is prevented from being displaced due to the displacement of the elastic portion 30 without increasing the size of the structure 20 (especially the size of the frame portion 22).
  • the displacement range Rzs2 of Rzs2 it is possible to realize a stiffness whose absolute value is sufficiently lower than that in the other displacement ranges (for example, substantially zero stiffness).
  • the structure 20 is arranged in the direction shown in FIGS. 1 and 2, the lower surface 23a of the bottom portion 23 of the frame portion 22 is placed (abutted) or fixed on the base member 10, and the upper surface 21a of the pressure receiving portion 21 is placed (contacted) or fixed. is assumed to receive a downward pressing force (load) from the outside.
  • the structure 20 is arranged in the direction shown in FIGS. An upward pressing force may be applied from the outside.
  • the pressure receiving portion 21 receives a reaction force due to the pressing force from the outside.
  • the structure 20 may be arranged in a direction that is vertically reversed from the direction shown in FIGS. 1 and 2 . In this case, the pressure receiving portion 21 may receive a pressing force from the outside, or may receive a reaction force due to the pressing force from the outside.
  • the structure 20 includes a pressure receiving portion 21, a frame portion 22, a pair of elastic portions 26, a pair of elastic portions 30, and a pair of beam portions 34.
  • the structural body 20 of the embodiment may have a structure in which the pair of elastic portions 26 are removed.
  • FIG. 10 is an explanatory diagram showing an example of the relationship between the downward pressing force (load) that the pressure receiving portion 21 receives from the outside and the displacement of the pressure receiving portion 21 from the initial position in the structure 120 of the modified example.
  • the structure 20 not only the pair of elastic portions 26 but also the pair of beam portions 34 have positive rigidity within an arbitrary displacement range of the pressure receiving portion 21 .
  • the beam portions are arranged such that the combined rigidity of the positive rigidity of the beam portion 34 and the negative rigidity of the elastic portion 30 is zero or substantially zero.
  • the displacement range Rzs3 of the pressure-receiving portion 21 can achieve a stiffness whose absolute value is sufficiently lower than that of the other displacement ranges (for example, substantially zero stiffness).
  • the structure 120 is a structure obtained by removing the pair of elastic portions 26 from the structure 20, the structure can be simplified and the size can be reduced as compared with the structure 20.
  • the length of the pair of side wall portions 24 in the vertical direction is shorter than that of the structure 20, so that the pair of elastic portions 30 move downward as the pressure receiving portion 21 moves downward.
  • the deformation of the upper ends of the pair of side wall portions 24 can be further suppressed, and the pair of elastic portions 30 exhibit more appropriate negative rigidity in the displacement range Rzs3 of the pressure receiving portion 21. can demonstrate.
  • the first beam portion 35 extends in the left-right direction from the side portion of the pressure receiving portion 21 and extends in a predetermined plane from the side wall portion 24.
  • the second beam portion 36 is formed to extend downward from the end of the corresponding first beam portion 35, and the connecting portion 37 is formed to extend to a position slightly far from Pyz. It is formed so as to connect the lower end portion of the second beam portion 36 and the vicinity of the upper end portion of the corresponding side wall portion 24 .
  • it is not limited to this.
  • the second beam portion 236 is formed to extend to a position close to the plane Pyz, and the second beam portion 236 extends from the end portion of the corresponding first beam portion 235 and extends downward away from the predetermined plane Pyz.
  • the connecting portion 237 may be formed so as to connect the lower end portion of the corresponding second beam portion 236 and the vicinity of the upper end portion of the corresponding side wall portion 24 .
  • the second beam portion 336 extends from the end of the corresponding first beam portion 335 and extends downward while approaching the predetermined plane Pyz. It may be formed so as to be connected to the vicinity of the upper end portion of the corresponding side wall portion 24 .
  • a structure in which the pair of elastic portions 26 are removed from the structures 220 and 320 may be employed.
  • the pair of beams 34 of each structure 20, 120, 220, 320 are connected to the side of the pressure receiving part 21, respectively.
  • the pair of beam portions 34 may be connected to each other without being connected to the pressure receiving portion 21 .
  • the pair of elastic portions 26 of each structure 20 , 120 , 220 , 320 has a connecting portion (upper end) with the pressure receiving portion 21 and a connecting portion with the bottom portion 23 when viewed in the vertical direction. It is formed so as to extend away from the predetermined plane Pyz in a semicircular shape from the (lower end) toward the center.
  • the elastic portion 26 is not limited to this, as long as it has positive rigidity within an arbitrary displacement range of the pressure receiving portion 21 .
  • the elastic portion 26 may be formed in a single coil spring shape instead of a pair (two pieces).
  • the pair of elastic portions 30 of each structure 20, 120, 220, 320 is inclined downward in a sine wave shape from the connection portion with the pressure receiving portion 21 toward the connection portion with the side wall portion 24. It shall be formed so as to extend to the side.
  • the elastic portion 30 is not limited to this, and may have negative rigidity in a predetermined displacement range of the pressure receiving portion 21 and positive rigidity in other displacement ranges.
  • the elastic part 30 may be formed of a straight beam.
  • each structure 20, 120, 220, 320 is formed to be a mirror image (plane symmetry) with respect to a predetermined plane Pyz which is a YZ plane passing through the center of gravity of each structure 20, 120.
  • a predetermined plane Pyz which is a YZ plane passing through the center of gravity of each structure 20, 120.
  • the structures 20 and 120 move the elastic element on one side (for example, the right side) of the predetermined plane Pyz to a straight line in the vertical direction passing through the center of gravity of the structures 20 and 120 (in the left-right direction and the front-rear direction of the pressure receiving portion 21).
  • a structure in which three or four elastic elements are provided so as to be rotationally symmetrical at intervals of 120° or 90° around the axis Lz may be employed.
  • a cross section of a predetermined plane Pxz that is an XZ plane passing through the center of gravity (axis Lz) of the structures 20 and 120 is defined by the axis Lz.
  • a structure of a rotating body obtained by rotating 180° around is also possible.
  • each structure 20, 120 is configured as an integrally molded member integrally molded from a resin material, a metal material, or the like. However, it may also be formed as a plurality of parts and joined together.
  • the frame portion 22 corresponds to the “frame portion”
  • the elastic portion 26 corresponds to the “first elastic portion”
  • the elastic portion 30 corresponds to the “second elastic portion”
  • the beam portion 34 corresponds to the “deformable portion”. It corresponds to "suppression part”.
  • a structure of the present disclosure includes a pressure receiving portion that receives an external pressing force or a reaction force due to the pressing force, and includes a frame portion, a pressure receiving portion connected to the pressure receiving portion, and a pressure receiving portion connected to the frame portion. a first elastic portion having positive rigidity within an arbitrary displacement range of the pressure receiving portion, a second elastic portion connected to the frame portion and having negative rigidity within a predetermined displacement range of the pressure receiving portion; and the frame portion and a deformation suppressing portion that suppresses deformation of the frame portion due to deformation of the second elastic portion due to displacement of the pressure receiving portion.
  • the second elastic portion when the second elastic portion is deformed due to the displacement of the pressure receiving portion, it is possible to suppress the deformation of the frame along with the deformation.
  • the second elastic portion can exhibit appropriate negative stiffness at , and a stiffness whose absolute value is sufficiently lower in a predetermined displacement range of the pressure receiving portion than in the other displacement range (for example, substantially zero stiffness) is realized. can be done. That is, without increasing the size of the frame portion, the frame portion supporting the elastic portion is prevented from being displaced due to the displacement of the elastic portion. A lower stiffness value can be achieved.
  • the deformation suppressing portion is adapted to suppress the deformation of the second elastic portion when a first force acts on the frame portion from the second elastic portion due to deformation of the second elastic portion due to displacement of the pressure receiving portion.
  • a second force that cancels at least part of the first force may be applied to the frame to suppress deformation of the frame.
  • the deformation suppressing portion may be formed so as to be connected to the pressure receiving portion. In this way, when a pressing force is applied to the pressure receiving portion from the outside, unintended displacement of the pressure receiving portion (for example, rotation about an orthogonal axis perpendicular to the direction of the pressing force) is suppressed, and the first elastic portion is prevented from being displaced. and the occurrence of unintended deformation of the second elastic portion can be suppressed.
  • the deformation suppressing portion may also serve as the first elastic portion. By doing so, it is possible to simplify the structure and reduce the size.
  • the second elastic portion may be formed in a sine wave shape.
  • an elastic element having the frame portion, the first elastic portion, the second elastic portion, and the deformation suppressing portion is arranged around an axis passing through the first position of the pressure receiving portion and the second position of the frame portion.
  • a plurality may be provided.
  • the cross section for forming the frame portion, the first elastic portion, the second elastic portion, and the deformation suppressing portion may have a structure of a rotating body obtained by rotating it around a predetermined axis.
  • the structure may be a unitary molded member.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
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PCT/JP2021/028338 2021-07-30 2021-07-30 構造体 Ceased WO2023007703A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP21951902.2A EP4379230A4 (en) 2021-07-30 2021-07-30 Structure
PCT/JP2021/028338 WO2023007703A1 (ja) 2021-07-30 2021-07-30 構造体
JP2021560260A JPWO2023007703A1 (https=) 2021-07-30 2021-07-30
US18/292,502 US20240344579A1 (en) 2021-07-30 2021-07-30 Structure
JP2021172306A JP7049022B1 (ja) 2021-07-30 2021-10-21 構造体

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Application Number Priority Date Filing Date Title
PCT/JP2021/028338 WO2023007703A1 (ja) 2021-07-30 2021-07-30 構造体

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WO2023007703A1 true WO2023007703A1 (ja) 2023-02-02

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EP (1) EP4379230A4 (https=)
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118149032A (zh) * 2024-03-19 2024-06-07 西安交通大学 多级载荷隔振器及其设计方法和系统
CN118564581A (zh) * 2024-08-02 2024-08-30 中南大学 一种多级承载的一体化准零刚度隔振器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102678804A (zh) * 2012-05-10 2012-09-19 上海交通大学 滑动梁和弹簧组合非线性超低频隔振器
JP2014532301A (ja) * 2011-09-15 2014-12-04 マッパー・リソグラフィー・アイピー・ビー．ブイ． リソグラフィシステムのための支持モジュール
JP6197251B2 (ja) 2011-10-18 2017-09-20 テクニシェ ユニヴェルシテイト デルフト エネルギー収集装置
WO2020061196A1 (en) * 2018-09-20 2020-03-26 The Curators Of The University Of Missouri Energy dissipation using negative stiffness shells
CN112178121A (zh) * 2020-10-09 2021-01-05 北京理工大学 斜置压缩杆准零刚度隔振器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8427186B2 (en) * 2010-01-12 2013-04-23 Formfactor, Inc. Probe element having a substantially zero stiffness and applications thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014532301A (ja) * 2011-09-15 2014-12-04 マッパー・リソグラフィー・アイピー・ビー．ブイ． リソグラフィシステムのための支持モジュール
JP6197251B2 (ja) 2011-10-18 2017-09-20 テクニシェ ユニヴェルシテイト デルフト エネルギー収集装置
CN102678804A (zh) * 2012-05-10 2012-09-19 上海交通大学 滑动梁和弹簧组合非线性超低频隔振器
WO2020061196A1 (en) * 2018-09-20 2020-03-26 The Curators Of The University Of Missouri Energy dissipation using negative stiffness shells
CN112178121A (zh) * 2020-10-09 2021-01-05 北京理工大学 斜置压缩杆准零刚度隔振器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4379230A4

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118149032A (zh) * 2024-03-19 2024-06-07 西安交通大学 多级载荷隔振器及其设计方法和系统
CN118564581A (zh) * 2024-08-02 2024-08-30 中南大学 一种多级承载的一体化准零刚度隔振器

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