Vibration damping member

Abstract

The utility model provides a vibration damping component. The vibration damping member (1) is disposed between the installation surface and a facing object while being fixed to the installation surface, thereby suppressing vibration transmission between the installation surface and the facing object. A damper member (1) is provided with an elastic part (10) and a base part (30). The elastic part (10) is formed from a thermoplastic elastomer having elasticity. The base portion (30) is formed of a material having higher rigidity than the elastic portion, and has a fixed surface facing the installation surface side, an opposing surface facing the opposing object side, and a side portion connecting the fixed surface and the opposing surface. The elastic part (10) is integrally molded by injection molding within the fixed surface side, the side part side, and the facing surface side of the base part (30), thereby accommodating the base part (30) therein. The base part (30) is fixed on the installation surface, so that the whole body including the elastic part (10) is fixed on the installation surface.

Description

[0001] This application claims priority from Japanese Patent Application No. JP 2022-167884, filed October 19, 2022, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure relates to a vibration-damping member that suppresses the effects of vibration. BACKGROUND

[0003] In the past, various techniques for suppressing various effects (at least any one of, for example, generation of noise, overturning of an article, falling of an article from a set position, deviation of a set position of an article, and breakage of an article) due to vibration of an article have been proposed.

[0004] For example, a fixing plate described in Patent Literature 1 is formed of a urethane-based elastomer that deforms if a load is applied and returns if the load is removed and has adhesiveness. The fixing plate of Patent Literature 1 is arranged between a table and a device to prevent the device placed on the table from moving on the table.

[0005] In addition, an adhesive pad material described in Patent Literature 2 is composed of a synthetic resin having adhesiveness and elasticity, and a plurality of convex portions are provided on the entire surface of the front surface side. The back surface side of the adhesive pad material is smooth and has adhesiveness.

[0006] Prior Art Documents:

[0007] Patent Literature:

[0008] Patent Literature 1: Japanese Patent Application Publication No. H10-146234

[0009] Patent Literature 2: Japanese Patent Application Publication No. 2009-39374 Utility Model Contents

[0010] In order to appropriately suppress the effects of vibration for a long period of time, it is preferable to use a material that can sufficiently absorb vibration and is less likely to deteriorate over time. However, in the past products, there has been a tendency that if a material that is less likely to deteriorate over time is selected, the adhesiveness decreases, and it is difficult to fix the product to a set surface. In addition, in many cases, even if a material with high adhesiveness is selected, it is difficult to sufficiently fix the product by the adhesion of the material alone. That is, the past products have difficulty in appropriately suppressing the effects of vibration on the basis of being sufficiently fixed to a set surface.

[0011] A representative object of the present disclosure is to provide a vibration-damping member that can appropriately suppress the effects of vibration on the basis of being sufficiently fixed to a set surface.

[0012] A vibration-damping member according to the present disclosure is a vibration-damping member that is arranged between a setting surface and an opposite object in a state of being fixed to the setting surface, thereby suppressing transmission of vibration between the setting surface and the opposite object, the vibration-damping member including: an elastic portion formed of a thermoplastic elastomer having elasticity; and a base portion formed of a material having higher rigidity than the elastic portion, and having a fixing surface toward the setting surface side, an opposite surface toward the opposite object side, and a side portion connecting the fixing surface and the opposite surface, the elastic portion being integrally formed on the fixing surface side, the side portion side, and the opposite surface side of the base portion by injection molding, thereby housing the base portion inside, and the entire body including the elastic portion being fixed to the setting surface by fixing the base portion to the setting surface.

[0013] According to the vibration-damping member of the present disclosure, the influence of vibration is appropriately suppressed in a state of being sufficiently fixed to a setting surface.

[0014] A vibration-damping member according to the present disclosure is a vibration-damping member that is arranged between a setting surface and an opposite object in a state of being fixed to the setting surface, thereby suppressing transmission of vibration between the setting surface and the opposite object, the vibration-damping member including: an elastic portion formed of a thermoplastic elastomer having elasticity; and a base portion formed of a material having higher rigidity than the elastic portion, and having a fixing surface toward the setting surface side, an opposite surface toward the opposite object side, and a side portion connecting the fixing surface and the opposite surface, the elastic portion being integrally formed on the fixing surface side, the side portion side, and the opposite surface side of the base portion by injection molding, thereby housing the base portion inside, and the entire body including the elastic portion being fixed to the setting surface by fixing the base portion to the setting surface.

[0015] According to the vibration-damping member of the present disclosure, the influence of vibration is appropriately suppressed in a state of being sufficiently fixed to a setting surface.

[0016] The elastic portion only needs to be able to house the base portion inside by being integrally formed in the range of the fixed surface side, the side portion side, and the opposite surface side of the base portion, and does not necessarily need to cover the entire outside of the base portion without gaps. Details will be described later. Therefore, a part of the base portion can also be exposed from the elastic portion.

[0017] The material of the elastic portion can use a styrene-based elastomer. The styrene-based elastomer not only has very high vibration absorption properties but also has properties of not easily deteriorating over time, easily functioning even at low temperatures, and being excellent in water resistance, hygiene, and lightness compared to other materials (for example, polyurethane-based elastomers, etc.). Therefore, by using a styrene-based elastomer as the material of the elastic portion, the effects of vibration are more appropriately suppressed. On the other hand, the styrene-based elastomer also has the property of being difficult to bond with other components. In this regard, in the vibration-damping component of the present disclosure, the base portion is fixed to the installation surface in a state where the elastic portion is integrally formed around the outer periphery of the base portion and assembled to the base portion. Therefore, even if a styrene-based elastomer that is difficult to bond with other components is used as the elastic portion, the vibration-damping component can be fixed to the installation surface in a state that is stable as a whole.

[0018] However, the material of the elastic portion can also use a thermoplastic elastomer other than a styrene-based elastomer. For example, in the case where the material of the elastic portion uses an olefin-based elastomer, an elastic portion having higher vibration absorption properties, not easily deteriorating over time, and excellent in low-temperature resistance, water resistance, and lightness is formed. In addition, in the case where the material of the elastic portion uses a polyester-based elastomer, an elastic portion having higher vibration absorption properties, not easily deteriorating over time, and excellent in low-temperature resistance, heat resistance, oil resistance, etc. is formed. In addition, even in the case where a thermoplastic elastomer other than the above is used, the vibration-damping component can suppress the effects of vibration in a state that is sufficiently fixed to the installation surface.

[0019] A plurality of protrusions that protrude toward the installation surface side can also be formed on the fixed surface of the base portion. At this time, the possibility of the elastic portion integrally formed around the outer periphery of the base portion deviating with respect to the base portion (for example, in a direction parallel to the fixed surface of the base portion) is appropriately reduced by the plurality of protrusions. Therefore, both the assembled state of the elastic portion with respect to the base portion and the fixed state of the vibration-damping component with respect to the installation surface are easily stable. Therefore, it is easy to further suppress the effects of vibration.

[0020] In the case where a plurality of protrusions are provided on the fixed surface of the base portion, the shape of each protrusion can be appropriately selected. For example, the shape of the protrusion can be cylindrical, or prismatic (tetragonal prism, etc.).

[0021] At least any one of the plurality of protrusions formed in the fixing surface of the base portion can be exposed to the side of the installation surface without being covered by the elastic portion, whereby the vibration-damping member directly contacts the installation surface when fixed to the installation surface. As described above, the base portion having the protrusions has higher rigidity than the elastic portion. Therefore, by causing at least any one of the protrusions in the base portion to directly contact the installation surface, the vibration-damping member is easily fixed to the installation surface in a more stable state than when the base portion does not directly contact the installation surface. Therefore, the influence of vibration is easily further suppressed.

[0022] That is, in the case where at least any one of the protrusions directly contacts the installation surface, the protrusion can have both a function of suppressing the elastic portion from deviating with respect to the base portion and a function of improving the stability of the vibration-damping member fixed to the installation surface.

[0023] Furthermore, all of the plurality of protrusions can directly contact the installation surface when the vibration-damping member is fixed to the installation surface. At this time, the effect of suppressing the elastic portion from deviating with respect to the base portion and the effect of improving the stability of the vibration-damping member fixed to the installation surface are easily simultaneously improved. However, it can also be configured such that only a part of the plurality of protrusions contacts the installation surface.

[0024] In the case where the plurality of protrusions (contact protrusions) directly contact the installation surface, the plurality of contact protrusions can be arranged in N-fold rotational symmetry (N is an integer of 2 or more) around an axis that passes through the center of the fixing surface perpendicularly. At this time, the pressure generated between the plurality of contact protrusions and the installation surface is easily made uniform. As a result, the vibration-damping member is easily fixed to the installation surface in a more stable state.

[0025] As an example, in the case where the outer shape of the base portion is a substantially rectangular plate shape, the plurality of protrusions can be formed in the four corner portions of the fixing surface of the base portion, respectively. At this time, the stability when the vibration-damping member is fixed to the installation surface is further improved.

[0026] At least two or more of the plurality of protrusions formed in the fixing surface of the base portion can be exposed to the side of the installation surface without being covered by the elastic portion, whereby directly contact the installation surface when the vibration-damping member is fixed to the installation surface. Each of the tip ends of the plurality of protrusions (contact protrusions) that directly contact the installation surface can be formed as a flat surface that lies on the same plane. At this time, the contact area between the plurality of contact protrusions and the installation surface is easily increased. Therefore, the pressure generated between the plurality of contact protrusions and the installation surface is reduced compared to the case where the tip ends of the contact protrusions are not formed as flat surfaces that lie on the same plane. Therefore, the stability when the vibration-damping member is fixed to the installation surface is further improved, and the possibility of deformation and damage of the installation surface is also reduced.

[0027] Moreover, the tips of all of the contact protrusions can be made into flat surfaces that lie on the same plane. In this case, the fixing stability of the damping member is further improved. However, even if some of the contact protrusions are not made into the above-described flat surfaces, the fixing stability of the damping member can be improved by making the tips of at least two or more of the contact protrusions into flat surfaces.

[0028] The flat surfaces of the tips of the plurality of protrusions that directly contact the installation surface and the flat surface on the installation surface side of the elastic portion can lie on the same plane in a state in which the elastic portion is integrally formed with the base portion and assembled. In this case, if the damping member is fixed to the installation surface, the flat surface on the installation surface side of the elastic portion also comes into contact with the installation surface at the same time in addition to the tips of the plurality of contact protrusions (flat surfaces) being in contact with the installation surface. As a result, the contact area between the damping member and the installation surface is further increased. Therefore, the stability when the damping member is fixed to the installation surface is further improved, and the possibility of deformation and damage of the installation surface and the like is reduced.

[0029] A threaded hole that penetrates from the opposite surface side to the fixing surface side can be formed in the base portion. In this case, a screw inserted into the threaded hole is screwed to the installation surface to firmly fix the base portion to the installation surface. As a result, the entire damping member including the elastic portion is fixed to the installation surface in a stable state. Moreover, if the elastic portion is fixed to the installation surface by a screw without passing through the base portion, there is a possibility that the soft elastic portion is deformed, the head of the screw comes into contact with the object, and the object is damaged. In addition, there is also a possibility that the soft elastic portion is deviated from the screw. In contrast, the base portion to which the elastic portion is assembled is fixed to the installation surface by a screw, whereby the entire damping member including the elastic portion is firmly fixed to the installation surface, and the possibility of the head of the screw coming into contact with the object is reduced.

[0030] A threaded hole can be formed in at least any one of the above-described contact protrusions (that is, protrusions that directly contact the installation surface when the damping member is fixed to the installation surface) in the base portion. In this case, the periphery of the threaded hole in the fixing surface side of the base portion, in which high pressure is likely to be generated when a screw is screwed, directly contacts the installation surface without passing through the elastic portion. Therefore, the possibility of the soft elastic portion being damaged and the like due to the pressure when the screw is screwed is reduced, and the stability when the damping member is fixed to the installation surface is further improved. Moreover, the portion of the base portion in which the protrusion is formed has a greater thickness than the portion of the base portion in which the protrusion is not formed. Therefore, by making the position of the threaded hole, in which a greater load acts when a screw is screwed, the protrusion having a greater thickness, the strength of the base portion is also easily improved.

[0031] The tip surface of the contact protrusion having the threaded hole can also be formed as a flat surface. In this case, the pressure at the time of threadingly connecting the screw is easily dispersed by the flat surface of the tip of the contact protrusion. Therefore, the stability at the time of fixing the damping member to the installation surface is further improved, and the possibility of deformation and breakage of the member and the installation surface is also reduced.

[0032] Further, a counterbore (which can also be a deep counterbore) can also be formed on the opposite surface side of the threaded hole. The counterbore refers to a step having a larger diameter than the diameter of the head of the screw, which is formed at the entrance portion of the threaded hole. The depth of the counterbore can also be designed to be deeper than the thickness of the head of the screw used. By forming the counterbore on the opposite surface side of the threaded hole, the possibility of the head of the screw for fixing the damping member to the installation surface contacting the opposite object is reduced. As a result, the possibility of deformation and breakage of the opposite object is reduced.

[0033] In the case where a plurality of threaded holes are formed in the base portion, the plurality of threaded holes can be arranged in N-fold rotational symmetry (N is an integer of 2 or more) around an axis that passes through the center of the substantially plate-shaped base portion. In this case, if the damping member is fixed to the installation surface by the screw, the pressure generated between the damping member and the installation surface is easily made uniform. As a result, the damping member is easily fixed to the installation surface in a more stable state.

[0034] A threaded hole exposure portion in which the threaded hole is exposed (opened) by omitting the material can also be formed on the object side and the installation surface side of the threaded hole formed in the base portion in the elastic portion integrally formed around the base portion. In this case, the operator can easily insert the screw into the threaded hole. In addition, even if the screw is threadingly connected to the threaded hole, the elastic portion is not easily broken or the like.

[0035] In addition, instead of providing the threaded hole in the base portion, a screw can also be fixed to a portion of the base portion. In this case, by rotating the base portion as a whole in which the screw is fixed, the damping member is appropriately fixed to the installation surface by the screw.

[0036] A material having a magnetic force can also be included in the material of the base portion. In this case, if there is an object having a magnet attached thereto on the installation surface side, the base portion is fixed to the installation surface by the magnetic force. Therefore, the operator can more easily fix the damping member to the installation surface.

[0037] The specific method for including a material having a magnetic force in the material of the base portion can be appropriately selected. For example, a plastic magnet, which can process a composite containing magnetic powder in plastic as a raw material, can also be used as the material of the base portion. At this time, the base portion having a magnetic force can be formed by various methods such as injection molding or compression molding. In addition, the base portion having a magnetic force can also be formed by attaching at least any one of a magnet and a magnetic sheet to at least a part of the base portion. The base portion can also be formed of a metal having a magnetic force or the like.

[0038] Further, in the case where the material of the base portion includes a material having a magnetic force, the threaded hole of the base portion described above can also be omitted. At this time, the structure of the base portion is simplified. In addition, the technology of including a material having a magnetic force in the material of the base portion and the technology of forming a threaded hole in the base portion can also be used simultaneously. At this time, the operator can also, for example, thread the screw or the like in a state where the vibration damping member is temporarily fixed to an appropriate position of the installation surface by the magnetic force. Therefore, the vibration damping member can be more appropriately fixed to the installation surface.

[0039] However, the vibration damping member can also be formed without using a material having a magnetic force as the material of the base portion. At this time, the material of the base portion can employ various materials having high rigidity (for example, various resins such as ABS resin or the like, various metals such as stainless steel or the like, and the like).

[0040] A through hole can also be formed in the base portion, which penetrates from the opposite surface side to the fixed surface side and through which the elastic portion is inserted. The elastic portion can also be integrally formed by injection molding after being filled (flowed) into the through hole. By filling the elastic portion into the through hole and integrally forming it, the possibility that the elastic portion is deviated from the base portion with respect to the outer periphery of the base portion is appropriately reduced. That is, by providing the through hole in the base portion, the deviation of the elastic portion in a direction parallel to the fixed surface of the base portion and the deviation of the elastic portion in a direction away from the fixed surface and the opposite surface of the base portion (that is, a gap is generated between the elastic portion and the base portion) are both suppressed. Therefore, the assembled state of the elastic portion with respect to the base portion and the fixed state of the vibration damping member with respect to the installation surface are both easily stabilized. Therefore, the influence of vibration is easily further suppressed.

[0041] Further, in the case where the through hole and the above-described protrusion are formed in the base portion, the deviation of the elastic portion in a direction parallel to the fixed surface of the base portion is suppressed with high precision by the through hole and the protrusion, and in addition, the deviation of the elastic portion in a direction away from the fixed surface and the opposite surface of the base portion is suppressed by the through hole. Therefore, by forming the through hole and the protrusion in the base portion, the effect of suppressing the deviation of the elastic portion with respect to the base portion can be doubled.

[0042] A plurality of insertion holes can also be provided in the base portion. By forming a plurality of insertion holes in the base portion, compared to the case where one insertion hole is formed, it is easier to more appropriately suppress the elastic portion from deviating with respect to the base portion. In addition, the plurality of insertion holes can also be arranged in N-fold rotational symmetry (N is an integer of 2 or more) about an axis that passes through the center of the fixing surface. At this time, it is easier to more appropriately suppress the elastic portion from deviating over the entire range of the vibration-damping member.

[0043] A light-storing material can also be contained in the material of the elastic portion. A light-storing material stores electromagnetic waves as energy, and emits light by itself by the stored energy. At this time, even in the case where the installation site of the vibration-damping member is in a darker environment due to a power outage or the like, it is easier to grasp the arrangement of the article or the like using the vibration-damping member as a marker. Therefore, for example, even in the case where a disaster such as an earthquake occurs, not only is the possibility of the target article falling or the like due to vibration reduced, but it is also easier to appropriately assist in securing an escape route and avoiding collision with the article or the like by the vibration-damping member.

[0044] A plurality of protrusions of uniform height can also be formed in the surface of the elastic portion on the opposite object side. At this time, the pressure acting on each of the plurality of protrusions is appropriately dispersed, so it is easier to further more appropriately suppress the influence of vibration. Furthermore, the shape of the protrusion formed in the elastic portion can be appropriately selected. For example, a protrusion of a shape in which a portion of a sphere is cut off (hemispherical or the like) can also be formed in the elastic portion. At this time, the contact state of the elastic portion with the opposite object is easier to become more stable. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 is a perspective view of the vibration-damping member 1 as viewed from the surface 2 side (the side that comes into contact with the opposite object).

[0046] Figure 2 is a perspective view of the vibration-damping member 1 as viewed from the back surface 3 side (the side that comes into contact with the installation surface).

[0047] Figure 3 is an exploded perspective view of the vibration-damping member 1 in a state in which the elastic portion 10 and the base portion 30 are exploded as viewed from the surface 2 side (the side that comes into contact with the opposite object).

[0048] Figure 4 is an exploded perspective view of the vibration-damping member 1 in a state in which the elastic portion 10 and the base portion 30 are exploded as viewed from the back surface 3 side (the side that comes into contact with the installation surface).

[0049] Figure 5 is a perspective view of the vibration-damping member 1 cut by a cross section that passes through the center and is perpendicular to the surface 2 as viewed from the surface 2 side (the side that comes into contact with the opposite object).

[0050] Figure 6is a perspective view of the vibration-damping member 101 of the first modification example as viewed from the surface 2 side (the side in contact with the counterpart).

[0051] Figure 7 is a perspective view of the vibration-damping member 201 of the second modification example as viewed from the surface side (the side in contact with the counterpart). DETAILED DESCRIPTION

[0052] (Outline configuration)

[0053] Hereinafter, one of representative embodiments of the present disclosure will be described with reference to the drawings. First, the outline configuration of the vibration-damping member 1 of the present embodiment will be described. As shown in Figure 1 and Figure 2 , the vibration-damping member 1 of the present embodiment is formed in a substantially rectangular parallelepiped shape (a substantially plate shape) Figure 1 The vibration-damping member 1 exemplified in the present embodiment is a substantially plate shape). The vibration-damping member 1 is disposed at a disposition position where various counterparts are disposed. In detail, the vibration-damping member 1 is disposed between a disposition surface and a counterpart in a state of being fixed to the disposition surface at the disposition position where the counterpart is disposed. As a result, the vibration transmission between the disposition surface and the counterpart is appropriately suppressed.

[0054] Hereinafter, the surface of the vibration-damping member 1 on the side in contact with the counterpart will be referred to as the surface 2, and the surface on the side in contact with the disposition surface (that is, the surface on the side opposite to the surface 2) will be referred to as the back surface 3. Figure 1 is a perspective view of the vibration-damping member 1 as viewed from the surface 2 side (the side in contact with the counterpart). Figure 2 is a perspective view of the vibration-damping member 1 as viewed from the back surface 3 side (the side in contact with the disposition surface).

[0055] As shown in Figures 3 to 5 , the vibration-damping member 1 has an elastic portion 10 and a base portion 30. Figure 3 is an exploded perspective view of the vibration-damping member 1 in a state of being exploded into the elastic portion 10 and the base portion 30 as viewed from the surface 2 side (the side in contact with the counterpart). Figure 4 is an exploded perspective view of the vibration-damping member 1 in a state of being exploded into the elastic portion 10 and the base portion 30 as viewed from the back surface 3 side (the side in contact with the disposition surface). Figure 5 is a perspective view of the vibration-damping member 1 cut by a cross section passing through the center and perpendicular to the surface 2 as viewed from the surface 2 side (the side in contact with the counterpart).

[0056] The elastic portion 10 is formed of a thermoplastic elastomer having elasticity. In use of the vibration-damping member 1, the surface 2 of the elastic portion 10 is in contact with the counterpart, and as a result, the vibration between the disposition surface and the counterpart is absorbed by the elastic portion 10.

[0057] The base portion 30 is formed of a material having higher rigidity than the material of the elastic portion 10. AsFigure 3 As shown, the base 30 is oriented towards the opposite object side ( Figure 3 The upper side of the face is taken as the opposite face 32. For example... Figure 4 As shown, the base 30 facing the setting surface side ( Figure 4 The surface above ( ) is used as the fixed surface 33. Additionally, the connecting opposite surface 32 in the base 30 (refer to ) Figure 3 ) and fixed surface 33 (refer to) Figure 4 The part that is called the side 34.

[0058] like Figure 5 As shown, the elastic part 10 is formed by injection molding on the opposite surface 32 of the base 30 (see reference). Figure 3 ) side, side 34 and fixed surface 33 (refer to Figure 4 The base 30, which has high rigidity, is housed inside the elastic part 10. Therefore, regardless of the material of the elastic part 10 (e.g., even if a material with low adhesion is selected as the material of the elastic part 10), the elastic part 10 can be properly assembled to the base 30 even without the use of adhesives, adhesive tapes, etc.

[0059] Furthermore, the elastic portion 10 only needs to be able to accommodate the base 30 internally; it does not need to cover the entire outer peripheral surface (opposing surface 32, side portion 34, and fixing surface 33) of the base 30 without gaps. In fact, in the vibration damping component 1 of this embodiment, as... Figure 2 As shown, the protrusions 36 (36A, 36B) of the base 30 are exposed to the side of the mounting surface. Figure 2 (The upper side). Protrusion 36 will be described in detail below.

[0060] In this embodiment, the elastic part 10 is assembled to the base 30. Figure 1 and Figure 2 In the state shown, the base 30 is fixed to the mounting surface, thereby fixing the vibration damping member 1, including the elastic part 10, to the mounting surface as a whole. Therefore, even without utilizing the adhesive force of the material of the elastic part 10 or the adhesive force of adhesives, the vibration damping member 1 can be fixed to the mounting surface in a stable state via the highly rigid base 30. Therefore, the vibration damping member 1 can appropriately suppress the effects of vibration while being fully fixed to the mounting surface.

[0061] Furthermore, in this embodiment, the vibration damping component 1 is fixed to the mounting surface by threading the screw 5. Therefore, compared to the case where the adhesive force is applied using the elastic part 10 or adhesive, the vibration damping component 1, including the elastic part 10, is fixed to the mounting surface in a firm and stable state.

[0062] (Elastic part)

[0063] The elastic portion 10 is described in detail. The material of the elastic portion 10 of the present embodiment uses a styrene-based elastomer. The styrene-based elastomer not only has very high vibration absorption properties, but also has the characteristic of not easily deteriorating over the years compared to other materials (e.g., polyurethane-based elastomers, etc.). Therefore, by using a styrene-based elastomer as the material of the elastic portion 10, the effects of vibration can be more appropriately suppressed. On the other hand, the styrene-based elastomer also has the characteristic of being difficult to adhere to other components. In this regard, in the vibration-damping member 1 of the present embodiment, the base portion 30 is fixed to the installation surface in a state in which the elastic portion 10 is integrally formed on the outer periphery of the base portion 30 and assembled to the base portion 30. Therefore, even if a styrene-based elastomer, which is difficult to adhere to other components, is used as the material of the elastic portion 10, the vibration-damping member 1 can be fixed to the installation surface in a state in which the entire vibration-damping member 1 is stable. Furthermore, even if an olefin-based elastomer or a polyester-based elastomer, etc. is used as the material of the elastic portion 10 instead of a styrene-based elastomer, the effects of vibration can be appropriately suppressed.

[0064] A light-storing material can also be contained in the material of the elastic portion 10 of the present embodiment. A light-storing material stores electromagnetic waves as energy, and emits light by itself by the stored energy. Therefore, by containing a light-storing material in the material of the elastic portion 10, even in a case in which the installation site of the vibration-damping member 1 is in a relatively dark environment due to a power outage, etc., it is easy to grasp the arrangement of the article, etc. with the light-emitting vibration-damping member 1 as a marker. Therefore, for example, even in the case of a disaster such as an earthquake, not only is the possibility of the target article falling, etc. due to vibration reduced, but it is also easy to appropriately assist in securing an escape route and avoiding collision with the article, etc. by the vibration-damping member 1.

[0065] As shown in Figs. 1 and 2, the elastic portion 10 is formed on the outer periphery of the base portion 30. The elastic portion 10 is formed in a cylindrical shape, and is formed of a material that is easily deformed by an external force. The material of the elastic portion 10 is described in detail below. Figure 1 , Figure 3 and Figure 5 As shown in Figs. 1 and 2, the elastic portion 10 is formed on the outer periphery of the base portion 30. The elastic portion 10 is formed in a cylindrical shape, and is formed of a material that is easily deformed by an external force. The material of the elastic portion 10 is described in detail below.

[0066] (Base portion)

[0067] The base portion 30 is described in detail. As shown in Figs. 1 and 2, the base portion 30 is formed in a cylindrical shape, and is formed of a material that is not easily deformed by an external force. The material of the base portion 30 is described in detail below. Figure 4 As shown in Figs. 1 and 2, the base portion 30 is formed in a cylindrical shape, and is formed of a material that is not easily deformed by an external force. The material of the base portion 30 is described in detail below. Figure 5As shown, the elastic portion 10 is integrally formed by injection molding in a manner that covers the respective circumferential directions of the plurality of protrusions 36. As a result, the possibility of the elastic portion 10, integrally formed on the outer circumference of the base 30, deviating from the base 30 (e.g., in a direction parallel to the fixing surface 33 of the base portion) is appropriately reduced by the plurality of protrusions 36. Therefore, the assembled state of the elastic portion 10 relative to the base 30 and the fixed state of the vibration damping member 1 relative to the mounting surface are easily stabilized. Thus, the effects of vibration are easily suppressed.

[0068] like Figure 2 and Figure 4 As shown, at least one of the plurality of protrusions 36 (36A, 36B) formed on the fixing surface 33 of the base 30 is not covered by the elastic portion 10 and is exposed to the setting surface side. Figure 2 and Figure 4 The base 30 with protrusions 36 has higher rigidity than the elastic portion 10. Therefore, by making at least one protrusion 36 of the base 30 directly contact the mounting surface, it is easier to fix the vibration damping member 1 to the mounting surface in a more stable state compared to the case where the base 30 and the mounting surface are not in direct contact. Therefore, it is easier to further suppress the effects of vibration. In other words, when at least one protrusion 36 is in direct contact with the mounting surface, the protrusion 36 can both suppress the deviation of the elastic portion 10 relative to the base 30 and improve the stability of the vibration damping member 1 fixed to the mounting surface.

[0069] In this embodiment, when the vibration damping member 1 is fixed to the mounting surface, all of the plurality of protrusions 36 (36A, 36B) formed on the fixing surface 33 of the base 30 are in direct contact with the mounting surface. Therefore, it is easy to simultaneously improve the effect of suppressing the deviation of the elastic part 10 relative to the base 30 and the effect of the stability of the vibration damping member 1 fixed to the mounting surface.

[0070] like Figure 4 As shown, the multiple protrusions 36 (36A, 36B) that directly contact the mounting surface are arranged with N rotational symmetries (N is an integer greater than 2, in this embodiment, N=4) about an axis that perpendicularly passes through the center of the fixing surface 33. Therefore, the pressure generated between the multiple protrusions 36 and the mounting surface is easily made nearly uniform. As a result, it is easier to fix the vibration damping member 1 to the mounting surface in a more stable state.

[0071] The base 30 in this embodiment is generally rectangular in shape. At least four protrusions 36 are formed at the four corners of the fixing surface 33 of the base 30. As a result, the stability of the vibration damping member 1 when fixed to the mounting surface is further improved.

[0072] As Figure 2 and Figure 4 shown, the tip end (end portion on the installation surface side) of each of the plurality of protrusions 36 (36A, 36B) in direct contact with the installation surface is formed as a flat surface lying on the same plane. That is, the height of each of the plurality of protrusions 36 in direct contact with the installation surface is uniform, and the tip end surface is formed as a flat surface parallel to the fixing surface 33. As a result, the contact area between the plurality of protrusions 36 and the installation surface is easily increased. Therefore, compared to a case where the tip end of the protrusion 36 is not formed as a flat surface lying on the same plane, the pressure generated between the plurality of protrusions 36 and the installation surface is reduced. Thus, the stability when the damping member 1 is fixed to the installation surface is further improved, and the possibility of deformation and breakage of the installation surface and the like is also reduced. In detail, in the present embodiment, all of the tip ends of the plurality of protrusions 36 (36A, 36B) are formed as flat surfaces lying on the same plane. As a result, the fixing stability of the damping member 1 is further improved.

[0073] As Figure 2 and Figure 5 shown, in a state where the elastic portion 10 is integrally formed with the base portion 30 and assembled, the flat surface of the tip end of each of the plurality of protrusions 36 (36A, 36B) in direct contact with the installation surface lies on the same plane as the back surface 3 (plane on the installation surface side) of the elastic portion 10. Therefore, if the damping member 1 is fixed to the installation surface, in addition to the tip end surface (flat surface) of the plurality of protrusions 36 being in contact with the installation surface, the plane on the installation surface side of the elastic portion 10 is also in contact with the installation surface at the same time. As a result, the contact area between the damping member 1 and the installation surface is further increased. Therefore, the stability when the damping member 1 is fixed to the installation surface is further improved, and the possibility of deformation and breakage of the installation surface and the like is also reduced.

[0074] As Figures 2 to 4 shown, the base portion 30 is formed with a threaded hole 37 that penetrates from the opposite surface 32 (see Figure 3 ) side to the fixing surface 33 (see Figure 4 ) side. The screw 5 is inserted into the threaded hole 37. The screw 5 inserted into the threaded hole 37 is screwed to the installation surface to firmly fix the base portion 30 to the installation surface. As a result, the damping member 1 including the elastic portion 10 is fixed to the installation surface in a stable state. Furthermore, if the elastic portion 10 is fixed to the installation surface by the screw 5 without passing through the base portion 30, there is a possibility that the soft elastic portion 10 is deformed, the head of the screw 5 comes into contact with the object, and the object is damaged. In addition, there is also a possibility that the soft elastic portion 10 is deviated from the screw 5. In contrast, the base portion 30 to which the elastic portion 10 is assembled is fixed to the installation surface by the screw 5, whereby the damping member 1 including the elastic portion 10 is firmly fixed to the installation surface, and the possibility of the head of the screw 5 coming into contact with the object is also reduced.

[0075] In detail, as shown in Figure 2 and Figure 4 In the present embodiment, the plurality of protrusions 36 include a protrusion 36A in which the threaded hole 37 is formed and a protrusion 36B in which the threaded hole 37 is not formed. The protrusion 36A in which the threaded hole 37 is formed is larger than the protrusion 36B in which the threaded hole 37 is not formed. Therefore, the strength of the protrusion 36A to which a large load is applied when the screw 5 is threaded is increased.

[0076] As described above, the tip end surface of the protrusion 36A in which the threaded hole 37 is formed is formed as a flat surface. As a result, the pressure when the screw 5 is threaded is easily dispersed by the flat surface of the tip end of the protrusion 36A. Therefore, the stability when the damping member 1 is fixed to the installation surface is further increased, and the possibility of deformation and breakage of the member and the installation surface is also decreased.

[0077] As shown in

[0078] As shown in Figure 3 In the present embodiment, the plurality of protrusions 36 include a protrusion 36A in which the threaded hole 37 is formed and a protrusion 36B in which the threaded hole 37 is not formed. The protrusion 36A in which the threaded hole 37 is formed is larger than the protrusion 36B in which the threaded hole 37 is not formed. Therefore, the strength of the protrusion 36A to which a large load is applied when the screw 5 is threaded is increased.

[0079] In the present embodiment, a plurality of (four) threaded holes 37 are formed in the base portion 30. The plurality of threaded holes 37 are arranged in N-fold rotational symmetry (N is an integer of 2 or more. In the present embodiment, N = 4) with a shaft that passes through the center of the substantially plate-shaped base portion 30 in the vertical direction as the center. Therefore, if the vibration-damping member 1 is fixed to the installation surface by the screws 5, the pressure generated between the vibration-damping member 1 and the installation surface easily becomes uniform. As a result, the vibration-damping member 1 is easily fixed to the installation surface in a more stable state.

[0080] As shown in Figs. 1 and 2, the base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. Figure 1 and Figure 3 As shown in Figs. 1 and 2, the base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. Figure 4 As shown in Figs. 1 and 2, the base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape.

[0081] As shown in Figs. 1 and 2, the base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. Figure 4 As shown in Figs. 1 and 2, the base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape.

[0082] As shown in Figs. 1 and 2, the base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. Figure 3 and Figure 4 As shown in Figs. 1 and 2, the base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. Figure 3 As shown in Figs. 1 and 2, the base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. Figure 4 As shown in Figs. 1 and 2, the base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. Figure 5 As shown in Figs. 1 and 2, the base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape. The base portion 30 is formed of a material that is harder than the elastic portion 10. The base portion 30 is formed in a substantially plate shape.

[0083] Multiple through holes 39 are provided at the base 30. Therefore, compared to the case where only one through hole 39 is provided, it is easier to more appropriately suppress the deviation of the elastic part 10 relative to the base 30. In addition, the multiple through holes 39 are arranged with N rotational symmetries about an axis that passes perpendicularly through the center of the fixed surface 33 (N is an integer greater than 2. In this embodiment, N=4). As a result, it is easier to appropriately suppress the deviation of the elastic part 10 throughout the entire vibration damping member 1.

[0084] The base 30 in this embodiment is made of a magnetic material. Therefore, if a magnet is attached to the mounting surface of the vibration damping member 1, the base 30 is magnetically fixed to the mounting surface. This makes it easier for the operator to fix the vibration damping member 1 to the mounting surface. For example, the operator can also thread the screw 5 while the vibration damping member 1 is temporarily fixed to a suitable position on the mounting surface by magnetic force. Therefore, the vibration damping member 1 can be more properly fixed to the mounting surface. Furthermore, when the vibration damping member 1 is securely fixed by the magnetic force of the base 30, various structures used for fixing the vibration damping member 1 with screws 5 (such as the threaded hole 37 of the base 30) can be omitted.

[0085] The base 30 in this embodiment is made of a plastic magnet, which can be processed from a composite containing magnetic powder in plastic. Therefore, a magnetic base 30 can be appropriately formed by various methods such as injection molding or compression molding. However, the material of the base 30 can be changed. For example, a magnetic base 30 can be formed by attaching at least one of a magnet and a magnetic sheet to at least a portion of the base 30. Alternatively, the base 30 can be formed without including a magnetic material. For example, ABS resin, which has high rigidity, durability, impact resistance, and is easy to process, can be used as the material of the base 30. Alternatively, at least one of a rigid metal (e.g., stainless steel) and a synthetic resin can be used as the material of the base 30.

[0086] The technology disclosed in the above embodiments is merely an example. Therefore, modifications can be made to the technology exemplified in the above embodiments. Figure 6 This is a perspective view of the damping member 101 of the first modified example, as viewed from the second surface (the side in contact with the opposing object). As shown in the first modified example, the protrusion 11 may not be provided on the surface 2 (the side in contact with the opposing object) of the elastic part 110 on the opposing object side (the upper side of the figure). Figure 1 , Figure 3 ,as well as Figure 5). At this time, the influence of the vibration can be appropriately suppressed. In addition, as shown in the first modification example, the positions and the number of the threaded holes through which the screw 5 is inserted can be changed, of course.

[0087] Figure 7 is a perspective view of the vibration-damping member 201 of the second modification example as viewed from the surface side (the side that contacts the counter object). As shown in the second modification example, the shape of the vibration-damping member 201 is not limited to a substantially rectangular parallelepiped shape, but can be formed in a substantially disc shape or the like.

Claims

1. A vibration damping member characterized by comprising: A vibration-damping member is configured between a setting surface and an opposite object in a state of being fixed to the setting surface, thereby suppressing transmission of vibration between the setting surface and the opposite object, the vibration-damping member comprising: an elastic portion formed of a thermoplastic elastomer having elasticity; and a base portion formed of a material having higher rigidity than the elastic portion, and having a fixing surface toward the setting surface side, an opposite surface toward the opposite object side, and a side portion connecting the fixing surface and the opposite surface, the elastic portion being integrally formed on the fixing surface side, the side portion side, and the opposite surface side of the base portion by injection molding, thereby housing the base portion inside, the entire body including the elastic portion being fixed to the setting surface by fixing the base portion to the setting surface.

2. The vibration-damping member according to claim 1, wherein a material of the elastic portion uses a styrene-based elastomer.

3. The vibration-damping member according to claim 1, wherein a plurality of protrusions protruding toward the setting surface side are formed on the fixing surface of the base portion.

4. The vibration-damping member according to claim 3, wherein at least any one of the plurality of protrusions formed on the fixing surface of the base portion is not covered by the elastic portion and exposed to the setting surface side, whereby the vibration-damping member directly contacts the setting surface when fixed to the setting surface.

5. The vibration-damping member according to claim 3, wherein at least two or more of the plurality of protrusions formed on the fixing surface of the base portion are not covered by the elastic portion and exposed to the setting surface side, whereby the vibration-damping member directly contacts the setting surface when fixed to the setting surface, top ends of the plurality of protrusions directly contacting the setting surface are formed as flat surfaces lying on the same plane.

6. The vibration-damping member according to claim 5, wherein the flat surfaces of the top ends of the plurality of protrusions directly contacting the setting surface and the setting surface side of the elastic portion lie on the same plane in a state where the elastic portion is integrally formed on the base portion and assembled.

7. The vibration-damping member according to claim 1, wherein a screw hole for a screw to pass through is formed in the base portion from the opposite surface side to the fixing surface side.

8. The vibration-damping member according to claim 4, wherein at least any one of the protrusions directly contacting the setting surface when the vibration-damping member is fixed to the setting surface in the base portion is formed with a screw hole for a screw to pass through from the opposite surface side to the fixing surface side.

9. The vibration-damping member according to claim 1, wherein a material having a magnetic force is included in a material of the base portion.

10. The vibration-damping member according to claim 1, wherein an insertion hole for the elastic portion to pass through is formed in the base portion from the opposite surface side to the fixing surface side, the elastic portion is integrally formed after being filled into the insertion hole by injection molding.

11. The vibration-damping member according to claim 1, wherein The elastic portion contains a light-storing material in the material thereof, the light-storing material storing electromagnetic waves as energy and emitting light by itself by the stored energy.

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