JP3849436B2 - Rubber laminated mount - Google Patents

Description

【００５１】
表からも明らかなように、ばね定数の温度依存性は、比較例が±１９％であるのに対して、実施例１が±１４％、実施例２が±１７％であった。これにより、ばね定数の温度依存性は、実施例１、２のいずれもが比較例よりも小さいことがわかる。特に、実施例１の場合には、比較例の３／４程度であり、大幅に小さくなっていることがわかる。
【００５２】
また、表からも明らかなように、熱老化後のばね定数変化率は、比較例が＋３２％であるのに対して、実施例１が＋６％、実施例２が＋１５％であった。これにより、実施例１、２のいずれもが比較例よりも大幅に小さいことがわかる。即ち、実施例２の場合には、比較例の１／２以下にまで大幅に小さくなっており、また、実施例１の場合には、比較例の１／５以下にまで大幅に小さくなっていることがわかる。
【００５３】
以上のことから、ゴム積層体は、Ｂ／Ａの値が０．５以上、かつ（Ｃ＋Ｄ）／２／Ａの値が０．５以上となるように構成されていることにより、長期使用後のばね定数変化率を大幅に小さくし得ることがわかる。
【図面の簡単な説明】
【図１】本発明の実施例１に係るゴム積層型マウントの正面図である。
【図２】本発明の実施例１に係るゴム積層型マウントの平面図である。
【図３】本発明の実施例２に係るゴム積層型マウントの正面図である。
【図４】本発明の実施例２に係るゴム積層型マウントの平面図である。
【図５】比較例に係るゴム積層型マウントの正面図である。
【図６】比較例に係るゴム積層型マウントの平面図である。
【符号の説明】
１、５、１０１…第１取付部材 ２、６、１０２…第２取付部材
３、７、１０３…中間支持板 ４、８、１０４…ゴム積層体
１１…基板 １１ａ…取付座部 １１ｂ…傾斜部
１２…取付ボルト １５…ゴム層 ２１…基板
２２…傾斜基板 ２２ａ…中央部 ２２ｂ…傾斜部
２３…取付ボルト ２５…ゴム層 ３１…中央部
３２、７２…傾斜部 ３５…ゴム層
４１、８１…第１ゴム弾性体 ４２、８２…第２ゴム弾性体
４３、８３…第３ゴム弾性体[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rubber laminated mount that is suitably employed as a structural member of a dynamic damper that is installed to suppress vibration generated by traffic vibration or the like in a detached house, for example.
[0002]
[Prior art]
In recent years, two-story and three-story high-rise steel-framed housing tends to increase mainly in urban areas. Along with this, there is a housing due to traffic vibration from main roads and elevated expressways close to those houses. This causes a problem because the resonance causes unpleasant noise and unpleasant vibration. The resonance frequency range of the house in question is mainly a low frequency range of 10 Hz or less, and in particular, the primary bending mode, which is the dominant resonance frequency, exists in the vicinity of 2 to 6 Hz.
[0003]
In this way, as a vibration control device that suppresses vibration generated in a house, etc., a load mass (mass member) is attached to a building structure such as a house via a spring member, and a secondary spring system is coupled. A dynamic damper that realizes a vibration absorption effect by generating vibration that cancels the shaking of the building structure by setting the natural frequency (vibration period) of the main spring system and the secondary spring system to be substantially the same. Are known. The natural frequency of the dynamic damper is basically determined by the spring constant of the spring member and the load mass.
[0004]
Further, as a device that exhibits the function of the dynamic damper as a spring, a rubber laminated mount as disclosed in, for example, Japanese Patent Laid-Open Nos. 5-141463 and 8-338467 is known. This rubber laminated mount uses the elasticity in the lateral direction (shear direction) of a laminated elastic body having a structure in which elastic bodies such as rubber and metal plates are alternately laminated as a spring. The rubber laminated mount disclosed in JP-A-8-338467 is configured such that anisotropy is imparted to the rigidity in the horizontal direction of the laminated elastic body when the metal plate has an inclined surface with respect to the horizontal direction. Has been.
[0005]
[Problems to be solved by the invention]
By the way, since the rubber laminated mount described above uses a rubber elastic body as a spring, the initial spring constant is likely to change due to sag due to long-term use (aging over time) or changes in environmental temperature. There is a problem that the effective vibration control effect by cannot be obtained stably over a long period of time.
[0006]
The present invention has been devised in view of the above problems, and an object of the present invention is to provide a rubber laminated mount that can reduce the rate of change in spring constant after long-term use.
[0007]
[Means for solving the problems, actions and effects of the invention]
As a result of intensive studies focusing on the structure of a rubber laminate formed by arranging rubber elastic bodies between a plurality of intermediate support plates, the present inventors have determined the thickness and width of the rubber laminate. The present invention was completed by finding that the relationship affects the rate of change of the spring constant after long-term use.
[0008]
That is, the rubber laminated mount according to the first aspect of the present invention that solves the above problem is a rubber laminated mount that elastically supports a mass member and constitutes a secondary spring system together with the mass member with respect to a building structure. A first mounting member that is mounted on either the building structure or the mass member, and is disposed opposite to the first mounting member at a distance from the building structure or the mass member. A plurality of intermediate members having a second attachment member to be attached, and a plurality of intermediate portions that are disposed at a distance from each other between the first attachment member and the second attachment member, and that incline toward the same side at both ends in the X direction. A pair of first rubber elastic bodies disposed between a support plate, the first mounting member and the inclined portion of the intermediate support plate located adjacent to the first mounting member; Between the inclined parts A plurality of pairs of second rubber elastic bodies respectively disposed, and a pair of third rubbers disposed between the second mounting member and the inclined portion of the intermediate support plate located adjacent to the second mounting member. A rubber laminate made of an elastic body, the thickness of the rubber laminate itself is A, the width of the rubber laminate in the Y direction is B, and the arrangement of the pair of first rubber elastic bodies in the X direction When the interval is C and the arrangement interval of the pair of third rubber elastic bodies in the X direction is D, the value of B / A is 0.5 or more and the value of (C + D) / 2 / A is 0. The means that it is set to be 5 or more is adopted.
[0009]
In the present invention, the width in the Y direction of the first to third rubber elastic bodies of the rubber laminate is normally defined as the same width, and thus is defined as the width (B) of the rubber laminate in the Y direction. The On the other hand, the width in the X direction of the rubber laminate, since there is a case where the arrangement interval in the X direction of the first to third elastic body which are arranged in pairs, each different, the pair of first rubber elastic body It is defined by the average value of the arrangement interval (C) in the X direction and the arrangement interval (D) in the X direction of the pair of third rubber elastic bodies.
[0010]
Further, the arrangement interval in the X direction of the first to third rubber elastic bodies arranged in pairs and the width in the Y direction of the first to third rubber elastic bodies are the same as those of the first to third rubber elastic bodies. When the outer surface is an inclined surface or a curved surface, it is defined by a portion having the minimum width.
[0011]
The rubber laminated mount of the present invention is set so that the width in the Y direction and the average width in the X direction of the rubber laminated body are a predetermined ratio (0.5 times) or more with respect to the thickness of the rubber laminated body itself. It is what. That is, the thickness of the rubber laminate itself is prevented from becoming larger than a predetermined value, and the width in the Y direction and the average width in the X direction of the rubber laminated material are prevented from becoming smaller than a predetermined value. By configuring the rubber laminate in this way, the rubber laminate mount of the present invention can reduce the rate of change in spring constant after long-term use. This excellent effect of the present invention has been confirmed by the test described below. Therefore, if the rubber laminated mount of the present invention is used for a vibration damping device such as a dynamic damper, the vibration reduction effect can be stably maintained over a long period of time.
[0012]
In the rubber laminated mount of the present invention, the intermediate support plate is disposed on the inclined portion of the intermediate support plate because the intermediate support plate is provided with inclined portions inclined to the same side at both ends in the X direction. The first to third rubber elastic bodies are arranged so as to have a square shape in the X direction. Therefore, the shape is difficult to buckle in the X direction, the variation in spring constant (variation in eigenvalue) is stabilized, and the rate of change in spring constant after long-term use is also reduced. The inclination angle of the inclined portion can be set in the range of 5 ° to 40 °, and preferably in the range of 10 ° to 20 °.
[0013]
The rubber material forming the rubber laminate is, for example, a diene type such as natural rubber (NR), isoprene rubber (IR), butadiene rubber (BR), styrene-butadiene rubber (SBR), and the amount of sulfur (S). Is preferably 1 phr or less, or silicone rubber or the like. If these are employed, it is advantageous to further reduce the rate of change of the spring constant.
[0014]
According to a second aspect of the present invention, there is provided the rubber laminated mount according to the first aspect, wherein the thickness of the first rubber elastic body is A1, the thickness of the second rubber elastic body is A2, and the first 3 When the thickness of the rubber elastic body is A3, the values of B / A1, B / A2, B / A3 are 2 or more, and (C + D) / 2 / A1, (C + D) / 2 / A2, (C + D) A method is employed in which the value of / 2 / A3 is set to be 2 or more.
[0015]
In the rubber laminated mount of the present invention, the width in the Y direction and the average width in the X direction of the rubber laminated body are not less than a predetermined ratio (twice) with respect to the thickness of each of the first to third rubber elastic bodies. Is set to That is, in the present invention, the thickness of each of the first to third rubber elastic bodies is defined not to be larger than a predetermined value, and the relationship with the predetermined ratio (0.5 times) in the invention according to claim 1. Therefore, the rubber laminate is defined to have a multilayer structure in which the total number of first to third rubber elastic bodies is 4 or more. As a result, the thickness of the rubber laminate itself is reliably regulated so as not to become larger than a predetermined value, and the width of the rubber laminated body in the Y direction and the X direction is reliably regulated so as not to become smaller than a predetermined value. The rate of change of the spring constant after use can be reduced more reliably.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be specifically described by way of examples.
[0017]
[Example 1]
FIG. 1 is a front view of a rubber laminated mount according to the present embodiment, and FIG. 2 is a plan view of the rubber laminated mount.
[0018]
As shown in FIGS. 1 and 2, the rubber laminated mount of this embodiment is laminated between the first mounting member 1, the second mounting member 2, and the first mounting member 1 and the second mounting member 2. Seven intermediate support plates 3,... , A pair of first rubber elastic bodies 41, 41, six pairs of second rubber elastic bodies 42,... , And a pair of third rubber elastic bodies 43, The rubber laminated body 4 made of 43 is the main element.
[0019]
The first mounting member 1 includes a substrate 11 formed of a rectangular metal plate and mounting bolts 12 fixed to the central portion of the substrate 11. The substrate 11 has a mounting seat portion 11a in the center thereof, and the both sides of the mounting seat portion 11a in the longitudinal direction (X direction) are inclined to the same side (upper side in FIG. 1) at an angle of about 15 °. A pair of inclined portions 11b, 11b. The mounting bolt 12 is fixed in a state where a shaft portion is inserted into an insertion hole (not shown) provided in the center of the mounting seat portion 11a and protrudes downward in FIG. The surface of the first mounting member 1 is covered with a thin rubber layer 15 over substantially the entire area excluding the central portion of the surface on the protruding side of the mounting bolt 12.
[0020]
The second attachment member 2 includes a substrate 21 formed of a rectangular metal plate, a flat central portion 22a, and a pair of inclined portions 22b and 22b provided on both sides of the central portion 22a. And a mounting bolt 23 fixed to the central portion of the substrate 21.
[0021]
The inclined substrate 22 is polymerized at a distance so that the central portion 22a is parallel to the substrate 21, and the edge portions of both the inclined portions 22b and 22b are bonded and fixed to both edge portions in the longitudinal direction of the substrate 21. . The inclination angles of the two inclined portions 22b and 22b are substantially the same as the inclination angles (about 15 °) of the inclined portions 11b and 11b of the first mounting member 1. The mounting bolt 23 is fixed in a state where the shaft portion is inserted into an insertion hole (not shown) provided in the center of the substrate 21 and protrudes from the surface of the substrate 21 opposite to the inclined substrate 22. The surface of the second mounting member 2 is covered with a thin rubber layer 25 over substantially the entire area excluding the surface of the substrate 21 on the protruding side of the mounting bolt 23.
[0022]
This 2nd attachment member 2 is arrange | positioned in the state which both the inclination parts 22b and 22b of the inclination board | substrate 22 oppose both the inclination parts 11b and 11b of the 1st attachment member 1 at a distance.
[0023]
Intermediate support plate 3, ..., 3, the first mounting member 1 and the second mounting member 2 is substantially formed by a rectangular metal plate of the same size, flat central portion 31, ..., and 31, the center , 31 includes a pair of inclined portions 32,... , 32 provided on both sides of the portion 31. The inclined portions 32,... , 32 are formed to be substantially the same as the inclined angles (about 15 °) of the inclined portions 11b, 11b of the first mounting member 1 and the inclined portions 22b, 22b of the second mounting member 2. Yes. The intermediate support plates 3,... , 3 are stacked between the first mounting member 1 and the second mounting member 2 with a distance from each other. Incidentally, each intermediate supporting plate 3, ..., a third surface, a thin rubber layer 35 in substantially the entire area is covered.
[0024]
The rubber laminate 4 is formed by laminating a pair of first rubber elastic bodies 41, 41, six pairs of second rubber elastic bodies 42 , 42, and a pair of third rubber elastic bodies 43, 43. It is configured. The first rubber elastic bodies 41 and 41 are formed in a rectangular thin plate shape from a diene-based rubber material having a sulfur (S) amount of 1 phr or less. The first rubber elastic bodies 41, 41 are respectively provided between the two inclined portions 11 b, 11 b of the first mounting member 1 and the two inclined portions 32, 32 of the intermediate support plate 3 positioned adjacent to the first mounting member 1. It is arranged by vulcanization adhesion.
[0025]
The second rubber elastic bodies 42,... , 42 are formed in the same size by the same rubber material as the first rubber elastic bodies 41, 41. The second rubber elastic body 42, ..., 42, each intermediate supporting plate 3 adjacent, ... are arranged are respectively vulcanization bonded between and if 3 of the inclined portions 32, 32. The third rubber elastic bodies 43 and 43 are formed in the same size by the same rubber material as the first rubber elastic bodies 41 and 41. The third rubber elastic bodies 43, 43 are provided between the inclined portions 22b, 22b of the second mounting member 2 and the inclined portions 32, 32 of the intermediate support plate 3 located adjacent to the second mounting member 2, respectively. It is arranged by vulcanization adhesion.
[0026]
The rubber laminate 4 is set so that the thickness and width are a predetermined ratio. That is, the thickness of the rubber laminate 4 itself (the total thickness of only the first to third rubber elastic bodies) is A, the width of the rubber laminate 4 in the Y direction is B, and the pair of first rubber elastic bodies 41 . 41 arrangement interval in the X direction is C, the third rubber elastic body 43 of the pair, 43 arrangement interval in the X direction of is D, the value of B / a is 0.5 or more, and (C + D) / The value of 2 / A is set to be 0.5 or more. Specifically, A = 46 mm, B = 48 mm, C = 95 mm, D = 95 mm, B / A = 1.04, (C + D) /2/A=2.07. Thereby, the thickness of the rubber laminated body 4 is prevented from becoming larger than a predetermined value, and the width in the Y direction and the average width in the X direction of the rubber laminated body 4 are prevented from becoming smaller than a predetermined value. In the present embodiment, the arrangement intervals in the X direction of the first to third rubber elastic bodies 41, 42, 43 arranged in pairs are the same.
[0027]
Further, when the thickness of the first rubber elastic body 41 is A1, the thickness of the second rubber elastic body 42 is A2, and the thickness of the third rubber elastic body 43 is A3, B / A1, B / A2, B The value of / A3 is set to 2 or more, and the values of (C + D) / 2 / A1, (C + D) / 2 / A2, and (C + D) / 2 / A3 are set to 2 or more. In this embodiment, A1 = A2 = A3 = 5.75 mm. Thereby, the thickness of the 1st-3rd rubber elastic bodies 41, 42, and 43 of the rubber laminated body 4 is made not to become larger than predetermined.
[0028]
The rubber laminated mount of the present embodiment configured as described above is suitably employed as a component member of a dynamic damper that is installed to suppress vibration generated by traffic vibration or the like in a detached house, for example.
[0029]
In this case, the dynamic damper is configured such that one mass member is elastically supported by a plurality of rubber laminated mounts. In the rubber laminated mount, the mounting bolt 12 of the first mounting member 1 is a beam of a house or the like. The second attachment bolt 23 is attached to the mass member placed on the second attachment member 2 by being fastened to the girders. At this time, each rubber laminated mount is attached so that the X direction and the Y direction thereof coincide with each other in the horizontal direction.
[0030]
Further, the natural frequency (damping frequency) of the dynamic damper is appropriately set according to the mass of the mass member and the respective spring constants in the X and Y directions of the rubber laminated mount. In this embodiment, the respective spring constants in the X direction and Y direction of the rubber laminated mount predict the change in the spring constant after use for a target use period (for example, 10 years). It is set using the average value of the spring constant. Thereby, the duration of the vibration reduction effect by the dynamic damper is prolonged.
[0031]
In addition, the rubber | gum laminated mount of a present Example is set so that the distortion of the thickness direction of the rubber laminated body 4 when a mass member is mounted may become smaller than predetermined. That is, the value of (the amount of deflection of the rubber laminate 4 when the mass member is loaded) / (the thickness of the rubber laminate 4 itself) is set to be 0.1 or less.
[0032]
As described above, when traffic vibration or the like is input to a detached house or the like where the dynamic damper is installed and the detached house or the like vibrates in the horizontal direction, the spring action of the rubber laminated body 4 of the rubber laminated mount is used. As the mass member resonates, vibration of the detached house is effectively suppressed. In this case, in the rubber laminated mount of this example, the width in the Y direction and the average width in the X direction of the rubber laminated body 4 are not less than a predetermined ratio (0.5 times) with respect to the thickness of the rubber laminated body 4 itself. Therefore, the rate of change of the spring constant is small even after long-term use. Therefore, the good vibration reduction effect of the dynamic damper is stably maintained over a long period.
[0033]
As described above, in the rubber laminated mount of this example, the Y-direction width and the X-direction average width of the rubber laminated body 4 are a predetermined ratio (0.5 times) with respect to the thickness of the rubber laminated body 4 itself. Since it is set to be the above, the rate of change of the spring constant after long-term use can be reduced. This excellent effect has been confirmed by the test described later.
[0034]
The width of the rubber laminate 4 in the Y direction and the average width in the X direction are set to be a predetermined ratio (twice) or more with respect to each thickness of the first to third rubber elastic bodies 41, 42, 43. Therefore, the rate of change in spring constant after long-term use can be reduced more reliably.
[0035]
Incidentally, rubber laminated mount of the present embodiment, seven of the intermediate support plate 3, ..., the second rubber elastic body 42 six pairs during 3, ..., but 42 is of configuration are stacked the intermediate supporting plate 3, ..., 3 and the second rubber elastic body 42, ..., it is possible to variously change the thickness of the rubber laminate 4 itself by increasing or decreasing appropriately the number of 42. In this case, in order to satisfy the condition described in claim 2, it is preferable that the number of second rubber elastic bodies 42 be two or more.
[0036]
In the rubber laminated mount of this embodiment, the intermediate supporting plate 3, ..., 3 of the inclination angle is appropriately changed in inclined portion 32, also possible to change the X direction of the spring constant of the rubber laminate 4 It is. Alternatively, with the width of the second X-direction of the mounting member 2 smaller than the first mounting member 1, the intermediate supporting plate 3, ..., so that the more smaller closer the width of the third X-direction to the second mounting member 2 Thus, it is possible to increase the spring constant in the X direction of the rubber laminate 4.
[0037]
[Example 2]
FIG. 3 is a front view of the rubber laminated mount according to the present embodiment, and FIG. 4 is a plan view of the rubber laminated mount.
[0038]
As shown in FIGS. 3 and 4, the rubber laminated mount of this embodiment is laminated between the first mounting member 5, the second mounting member 6, and the first mounting member 5 and the second mounting member 6. , 7 disposed , seven pairs of first rubber elastic bodies 81, 81, six pairs of second rubber elastic bodies 82,... , 82 and a pair of third rubber elastic bodies 83, A rubber laminate 8 made of 83 is used as a main element.
[0039]
The rubber laminated mount of the present embodiment has the same basic configuration as that of the first embodiment, and is configured so that the width in the Y direction and the average width in the X direction of the rubber laminated body 8 are mainly different. It is a thing. Therefore, detailed description of common members and the like will be omitted, and different points will be mainly described.
[0040]
The first mounting member 5 and the second mounting member 6 of this embodiment are different in that the width in the Y direction is formed to be smaller than that of the first embodiment.
[0041]
The intermediate support plate 7 of this embodiment, ..., 7, the width of the Y direction are formed to be smaller than that of Example 1, and the inclined portions 72, ..., 72 inclination angle of about 10 Loose at °.
[0042]
In the rubber laminated body 8 of the present embodiment, the width in the Y direction is reduced to about ½ that of the first embodiment in the size of one of the first to third rubber elastic bodies 81, 82, 83. The width in the X direction is about twice that of the first embodiment. However, since the thickness of each of the first to third rubber elastic bodies 81, 82, 83 is the same as that of the first embodiment, the thickness of the rubber laminate 8 itself is also the same.
[0043]
Then, the thickness of the rubber laminate 8 itself is A, the width of the Y direction of the rubber laminate 8 is B, the arrangement interval in the X direction of the pair of first rubber elastic body 81, 81 is C, a pair of third When the distance between the rubber elastic bodies 83 and 83 in the X direction is D, the value of B / A is 0.5 or more and the value of (C + D) / 2 / A is the same as in the first embodiment. It is set to be 0.5 or more. Specifically, A = 46 mm, B = 24 mm, C = 100 mm, D = 100 mm, B / A = 0.52, (C + D) /2/A=2.17.
[0044]
Further, when the thickness of the first rubber elastic body 81 is A1, the thickness of the second rubber elastic body 82 is A2, and the thickness of the third rubber elastic body 83 is A3, B / A1, B / A2, B Example 1 is also set so that the value of / A3 is 2 or more and the values of (C + D) / 2 / A1, (C + D) / 2 / A2, and (C + D) / 2 / A3 are 2 or more. Is the same as
[0045]
In the rubber laminated mount of the present embodiment configured as described above, the width of the rubber laminate 8 in the Y direction and the average width in the X direction are a predetermined ratio (0.5) to the thickness of the rubber laminate 8 itself. Therefore, the rate of change of the spring constant after long-term use can be reduced as in the case of the first embodiment. This excellent effect has been confirmed by the test described later.
[0046]
Further, the width of the rubber laminate 8 in the Y direction and the average width in the X direction are set to be a predetermined ratio (twice) or more with respect to each thickness of the first to third rubber elastic bodies 81, 82, 83. Therefore, as in the case of the first embodiment, the rate of change of the spring constant after long-term use can be reduced more reliably.
[0047]
〔test〕
In order to confirm the excellent effects of the rubber laminated mounts of Examples 1 and 2, a test was conducted to examine the temperature dependence of the spring constant and the rate of change of the spring constant due to thermal aging. The temperature dependence of the spring constant is obtained by examining the rate of change of the spring constant when the environmental temperature is changed in the range of 10 to 50 ° C. The results are shown in the table. The rate of change of the spring constant due to heat aging was determined by examining the rate of change of the spring constant after 80 hours at 48 ° C. with a load of 294 N applied, and the results are shown in the table. The heat load of 80 ° C. × 48 hours here corresponds to the heat load of 30 ° C. × 10 years, and the rate of change of the spring constant after 30 ° C. × 10 years is estimated by an acceleration test at 80 ° C. × 48 hours. Is possible.
[0048]
The table also shows values relating to the thickness (A) of the rubber laminates of Examples 1 and 2 and the dimensions of the widths (B, C, D) in the X direction and the Y direction.
[0049]
In addition, as a comparative example, a rubber laminated mount shown in FIGS. 5 and 6 was prepared, and the same test as in Examples 1 and 2 was performed on this comparative example. The rubber laminated mount of the comparative example includes a first mounting member 101, a second mounting member 102, and three intermediate support plates 103 that are stacked between the first mounting member 101 and the second mounting member 102. , 103 and a pair of first rubber elastic bodies 141, 141, two pairs of second rubber elastic bodies 142, ... , 142 and a rubber laminated body 104 including a pair of third rubber elastic bodies 143, 143. ing. As shown in the table, the rubber laminate 104 of the comparative example has the thickness (A) and the dimensions of the widths (B, C, D) in the X direction and the Y direction. Since the value of B / A in the rubber laminate 104 is 0.43, it is 0.5 or less. The test results of this comparative example are also shown in the table.
[0050]
【table】

[0051]
As is apparent from the table, the temperature dependence of the spring constant was ± 19% in the comparative example, whereas ± 14% in the example 1 and ± 17% in the example 2. Thereby, it turns out that the temperature dependence of a spring constant is smaller in both Examples 1 and 2 than in the comparative example. In particular, in the case of Example 1, it is about 3/4 of the comparative example, and it can be seen that it is significantly reduced.
[0052]
Further, as is apparent from the table, the rate of change in the spring constant after heat aging was + 6% in Example 1 and + 15% in Example 2 compared to + 32% in the comparative example. Thereby, it turns out that both of Examples 1 and 2 are significantly smaller than a comparative example. That is, in the case of Example 2, it is significantly smaller than 1/2 of the comparative example, and in the case of Example 1, it is significantly smaller than 1/5 of the comparative example. I understand that.
[0053]
From the above, the rubber laminate is configured such that the value of B / A is 0.5 or more and the value of (C + D) / 2 / A is 0.5 or more. It can be seen that the rate of change in spring constant can be significantly reduced.
[Brief description of the drawings]
FIG. 1 is a front view of a rubber laminated mount according to a first embodiment of the present invention.
FIG. 2 is a plan view of a rubber laminated mount according to Embodiment 1 of the present invention.
FIG. 3 is a front view of a rubber laminated mount according to Embodiment 2 of the present invention.
FIG. 4 is a plan view of a rubber laminated mount according to Embodiment 2 of the present invention.
FIG. 5 is a front view of a rubber laminated mount according to a comparative example.
FIG. 6 is a plan view of a rubber laminated mount according to a comparative example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 5, 101 ... 1st attachment member 2, 6, 102 ... 2nd attachment member 3, 7, 103 ... Intermediate support plate 4, 8, 104 ... Rubber laminated body 11 ... Board | substrate 11a ... Attachment seat part 11b ... Inclination part DESCRIPTION OF SYMBOLS 12 ... Mounting bolt 15 ... Rubber layer 21 ... Board | substrate 22 ... Inclined board 22a ... Center part 22b ... Inclined part 23 ... Mounting bolt 25 ... Rubber layer 31 ... Center part 32, 72 ... Inclined part 35 ... Rubber layer 41, 81 ... 1st 1 rubber elastic body 42, 82 ... second rubber elastic body 43, 83 ... third rubber elastic body

Claims (3)

A rubber laminated mount that elastically supports a mass member and constitutes a secondary spring system together with the mass member for a building structure,
A first attachment member attached to any one of the building structure and the mass member;
A second mounting member that is disposed opposite to the first mounting member at a distance and is mounted on the other of the building structure and the mass member;
A plurality of intermediate support plates that are disposed between the first mounting member and the second mounting member at a distance from each other and have inclined portions that are inclined on the same side at both ends in the X direction;
A pair of first rubber elastic bodies disposed between the first attachment member and the inclined portion of the intermediate support plate located adjacent to the first attachment member, and the inclined portions of the adjacent intermediate support plates A plurality of pairs of second rubber elastic bodies respectively disposed between the second mounting member and a pair of the second mounting member and the inclined portion of the intermediate support plate positioned adjacent to the second mounting member. A rubber laminate comprising a third rubber elastic body,
The thickness of the rubber laminate itself is A, the width in the Y direction of the rubber laminate is B, the arrangement interval of the pair of first rubber elastic bodies in the X direction is C, and the pair of third rubber elastic bodies. When the arrangement interval in the X direction is D, the value of B / A is set to 0.5 or more and the value of (C + D) / 2 / A is set to 0.5 or more. Rubber laminated mount.   When the thickness of the first rubber elastic body is A1, the thickness of the second rubber elastic body is A2, and the thickness of the third rubber elastic body is A3, B / A1, B / A2, B / A3 The value of (C + D) / 2 / A1, (C + D) / 2 / A2, and (C + D) / 2 / A3 are set to be 2 or more. The rubber laminated mount according to 1. The rubber laminate is diene-based and has a sulfur (S) content of 1. phr 3. The rubber laminated mount according to claim 1, wherein the rubber laminated mount is made of the following rubber material.

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