JP2017133308A - Connection damper and method of manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection damper having excellent durability without deteriorating reliability of performance of absorption of energy input into a wooden building, aseismic performance and vibration control performance, and a method of manufacturing the same.SOLUTION: After an adhesive is attached to inner and outer surfaces of a cylindrical stationary part 5, the cylindrical stationary part 5 is installed in a mold 11 so that a clearance can be made between the outer surface of the cylindrical stationary part 5 and an inside surface of the mold 11. An unvulcanized damping rubber turned into a damping material part 3 is pressure injected into the mold 11 through an injection hole 11Ad of a top mold 11A. Subsequently, the application of pressure and heat makes the damping material part 3 vulcanized and bonded to the inside and periphery of the cylindrical stationary part 5.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a joint damper mainly used for a seismic structure or a vibration control structure of a wooden building and a method for manufacturing the same.

  Conventionally, in a detached wooden house, in order to improve seismic resistance, a structure in which a reinforcing hardware is provided between a pillar material and a brace material in a joint portion to increase rigidity and proof strength is known. In addition, a structure that combines a damping material (for example, high damping rubber) with a rigid material that is such an earthquake-resistant reinforcement hardware absorbs and reduces energy input to buildings such as earthquakes and typhoons. A joint damper has been proposed that prevents the building from collapsing (see, for example, Patent Documents 1 and 2).

Japanese Patent No. 3684129 Japanese Patent No. 5777036

  Since the joint damper is used over a long period of time in a state where it is attached to a building, the surface of a rigid material (reinforcement hardware) is exposed to the outside like those described in Patent Documents 1 and 2. It is easy to rust and inferior in durability.

  In addition, when a rigid material and a damping material are combined, if the damping material portion is not properly combined so that it does not peel off from the rigid material portion, the energy absorption performance, seismic performance performance and The reliability of vibration performance may be impaired.

  It is an object of the present invention to provide a joint damper having excellent durability and a method for manufacturing the same, without impairing the absorption performance of the energy input to the wooden building, the seismic performance, and the reliability of the vibration control performance.

  The joint damper according to claim 1 is a joint damper attached between a pillar material extending in a vertical direction of a wooden building and a bracing member extending in a direction inclined with respect to the pillar material, and is fixed to the pillar material. A rigid material portion having a plate-like fixing portion, and a cylindrical fixing portion that is connected to the plate-like fixing portion and is fixed to the brace, and fills an internal space of the cylindrical fixing portion and the cylindrical shape A damping member portion that forms a surface layer on the outer surface of the fixing portion, and the cylindrical fixing portion includes a first plate portion to which the plate-like fixing portion is connected, and the first plate. A second plate portion extending in parallel with the portion, and a plurality of bridge portions arranged side by side to couple the first and second plate portions, wherein the damping material portion is an interior of the cylindrical fixing portion. A part filled in the space and a part provided as a surface layer on the outer surface are combined. And wherein the Rukoto.

  In this way, since the surface layer is provided on the outer surface of the cylindrical fixing portion and is covered and protected by the surface layer, the durability can be improved.

  In addition, when vibration energy due to an earthquake or wind is input to the building, the vibration energy is mainly absorbed by the damping material portion. When large vibration energy is input, in addition to shear deformation of the damping material portion, the bridge Bending deformation of the part is added, and vibration energy input to the building is absorbed by these deformations. Even when greater vibration energy is input and the adhesion between the rigid material portion and the damping material portion is peeled off or the rubber is broken and absorption by the damping material portion cannot be expected, the plurality of bridge portions are plastically deformed. The remaining energy is absorbed.

  In this case, not only is the inner space of the cylindrical fixing portion filled, but also the outer layer has a surface layer formed of an attenuation material portion, and the outer surface is filled with the portion that is filled in the inner space of the cylindrical fixing portion. Since the portion provided as the surface layer is coupled to the inner space of the cylindrical fixing portion, the portion that is filled in the inner space of the cylindrical fixing portion and the portion provided as the surface layer on the outer surface are firmly coupled to each other, and the cylindrical fixing portion The damping material portion is prevented from peeling off (separating).

  In this case, as described in claim 2, the attenuation member portion is provided between the adjacent bridge portions so as to be flush with the surface of the surface layer of the bridge portion. be able to.

  In this way, between the adjacent bridge portions, the damping material portion is provided so as to be flush with the surface of the surface layer of the bridge portion, so that the interior space of the cylindrical fixing portion is filled. This is advantageous in that the portion provided as a surface layer on the outer surface is firmly bonded. Further, it is avoided that the plastic deformation of the adjacent bridge portion is concentrated in one place. Therefore, the reliability with respect to energy absorption performance, earthquake resistance performance, and vibration control performance can be improved.

  According to a third aspect of the present invention, the internal space of the cylindrical fixing portion is not provided with the damping material portion, including the space between the adjacent bridge portions, in the portion corresponding to the bridge portion. It is also possible to have a structure as shown in FIG.

  If it does in this way, it will become easy to change a bridge part and energy absorption performance by deformation of a bridge part will increase.

  According to a fourth aspect of the present invention, the damping material portion further includes a surface layer on an end surface of the cylindrical fixing portion opposite to a side where the plate-like fixing portion is continuously provided. It is desirable to be provided so as to be flush with the surface.

  In this case, the damping material is further flush with the surface of the surface layer of the end surface of the cylindrical fixing portion on the side opposite to the side where the plate-like fixing portion is connected. Since the portion is provided, the damping material portion and the cylindrical fixing portion are more firmly coupled.

  According to a fifth aspect of the present invention, the first plate portion includes a first through hole used for fixing to the brace and an unvulcanized portion that becomes the damping material portion during pressure vulcanization molding. A second through-hole for allowing the damping rubber to flow into the internal space is formed, and the second plate portion has a third through-hole used for fixing to the brace and a pressure applied. It is desirable that a fourth through hole for allowing unvulcanized damping rubber to be the damping material portion to flow into the internal space is formed at the time of vulcanization molding.

  If it does in this way, unvulcanized damping rubber will flow in in the above-mentioned interior space also through the 2nd and 3rd penetration holes, and filling by the inflow of the damping material part to interior space will be performed reliably. Further, the portion filled in the inner space of the cylindrical fixing portion also by the portion filled in the second and fourth through holes, and the portion provided as a surface layer on the outer surface of the cylindrical fixing portion, As a result, the bonding force between the damping material portion serving as the surface layer and the damping material portion filled in the internal space is increased.

  According to a sixth aspect of the present invention, the rigid member portion is formed by bending a rigid plate member, and the plate member is provided on each of both sides of a rectangular portion corresponding to the first plate portion. A long portion in which a portion that becomes a part of the second plate-like fixed portion is provided across a portion that becomes a bridge portion, and the longitudinal portion is perpendicular to the longitudinal direction of the long portion with respect to the rectangular portion The short part that becomes the plate-like fixing part is provided in a continuous manner across the part that becomes the coupling part and has a substantially T shape, and the part that becomes the bridge part is curved with respect to the rectangular part, It can be set as the structure where the front-end | tip part of the part which becomes a part of said 2nd board part is faced | matched, and the said cylindrical fixing | fixed part is formed.

  If it does in this way, the rigid board | plate part which has a plate-shaped fixing | fixed part and a cylindrical fixing | fixed part can be easily manufactured by bending or curving a rigid board | plate material.

  Invention of Claim 7 is a manufacturing method of the joint damper as described in any one of Claims 1-6, Comprising: After making an adhesive adhere to the whole surface of the said cylindrical fixing part, the said cylindrical shape Only the fixing part is installed in the mold so that the outer surface of the cylindrical fixing part has a gap between the inner surface of the mold, and the injection hole of the mold is inserted into the mold. The damping material portion is vulcanized and bonded to the cylindrical fixing portion of the rigid material portion by pressurizing and injecting unvulcanized damping rubber to be the damping material portion, and then pressurizing and heating.

  In this way, the joint damper according to any one of claims 1 to 6 can be manufactured without difficulty.

  According to an eighth aspect of the present invention, the mold is provided on the inner surface of the mold facing the outer surfaces of the first and second plate portions of the cylindrical fixing portion. It is desirable that a plurality of protrusions that are in contact with the outer surface of the plate portion to form gaps therebetween are provided.

  In this way, a gap for forming the surface layer is easily formed between the outer surfaces of the first and second plate portions and the inner surface of the mold in the mold.

  In the present invention, since the surface layer is provided on the outer surface of the cylindrical fixing portion, the outer surface can be protected by the surface layer and the durability can be improved. In particular, not only is the interior space of the cylindrical fixing portion filled with the attenuation material portion, but also the outer surface is provided with an attenuation material portion as a surface layer, and the portion that is filled in the internal space of the tubular fixing portion; Since the surface layer is connected to the surface layer, the damping material part is prevented from peeling off and separated from the rigid material part, ensuring energy absorption performance and reliability for earthquake resistance and damping performance. Sex can be secured.

It is a perspective view which shows the state which attached the joint damper which concerns on this invention to the pillar of a wooden building, and the bracing member. The attachment state of the joint damper shown in FIG. 1 is shown, (a) is a front view, (b) is a side view. The joint damper is shown, in which (a) is a perspective view and (b) is a perspective view in which a damping material portion is omitted. The state which looked at the joint damper shown in FIG. 3 from the other side is shown, (a) is a perspective view, (b) is the perspective view which abbreviate | omitted the attenuation | damping material part. It is explanatory drawing which expand | deploys and shows the rigid material part of the said joint damper. It is sectional drawing in the AA of FIG. It is explanatory drawing of a manufacturing method. It is explanatory drawing which shows the mode of a deformation | transformation when the load of a horizontal direction acts on the structural frame of a wooden building. The joint damper which is another embodiment is shown, (a) is a perspective view, (b) is the perspective view which abbreviate | omitted the attenuation | damping material part. The state which looked at the joint damper shown in FIG. 9 from the other side is shown, (a) is a perspective view, (b) is the perspective view which abbreviate | omitted the attenuation | damping material part. Further, a joint damper according to another modification is shown, (a) is a perspective view, and (b) is a perspective view in which a damping material portion is omitted. It is a figure similar to FIG. It is a figure similar to FIG. 1 about the joint damper which is a modification. It is principal part sectional drawing about another modification. Further, another modification is shown, (a) is a perspective view of a rigid material portion, (b) is a front view, (c) is a side view, and (d) is an explanatory view showing a state of deformation.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a perspective view showing a state in which a joint damper according to the present invention is attached to a pillar and a brace of a wooden building, FIG. 2 shows an attachment state of the joint damper shown in FIG. 1, (a) is a front view, (B) is a side view.

  As shown in FIGS. 1 and 2A and 2B, the joint damper 1 includes a column member 102 extending in the vertical direction of the wooden building 101, and a brace member 104 extending in a direction inclined with respect to the column member 102. It is attached between. In other words, the column member 102 is bonded to the base 103 extending in the horizontal direction, and is arranged so that the end of the brace 104 is in contact with the column member 102 and the base 103 at the bonded portion. The joint damper 1 is attached between 102 and the brace material 104.

As shown in FIGS. 3A and 4A, the joint damper 1 includes a rigid material portion 2 and a damping material portion 3, and the rigid material portion 2 is configured as shown in FIG. 4B, the plate-like fixing portion 4 fixed to the column member 102, and the bracing material connected to the plate-like fixing portion 4 through the coupling portion 6 so as to form approximately 90 degrees. And a cylindrical fixing portion 5 fixed to 104. In addition, in order to raise the cross-sectional secondary moment of the joint damper 1, the convex part 9 is provided in the connection part 6 by rib processing.
As will be described later, the rigid material portion 2 is formed by bending or bending a rigid plate material 2A, and the developed state is substantially T-shaped as shown in FIG. .

  The cylindrical fixing portion 5 has a substantially rectangular first plate portion 5a to which the plate-like fixing portion 4 is connected, and a size corresponding to the first plate portion 5a. The first plate portion 5a It has the 2nd board part 5b extended in parallel, and the several bridge | bridging part 5c arrange | positioned along with and couple | bonds the 1st and 2nd board parts 5a and 5b. Thus, an internal space S having a narrow width W surrounded by the first and second plate portions 5a and 5b and the bridge 5c is formed. The second plate portion 5b is disposed on the side opposite to the bending direction of the plate-like fixing portion 4.

  The bridge portion 5c has a substantially U-shaped cross section and absorbs energy input to the building together with the damping material portion 3 due to the deformation. The bridge portion 5c is shown in FIGS. 3 (b) and 4 (b). ), The first plate portion 5a is provided at the upper and lower portions in the width direction center and at both ends in the width direction. The width of each bridge portion 5c is, for example, 0.5 mm or more, and is 2 to 60% as a whole, preferably 3 to 50%, more preferably with respect to the entire width of the upper portion or the lower portion of the first plate portion 5a. The width is set to 5 to 30%. Thus, by setting it to at least 2% to 60% as a whole, the energy input to the building can be absorbed not only by the damping material portion 3 but also by the bridge portion 5c. In this embodiment, three bridge portions 5c having the same width are provided, but the width and number of the bridge portions 5c may be different.

  In addition, due to some cause such as input of large energy (for example, a large earthquake) (→ I thought that it is better to clarify that it is not limited to the input of large energy, I added it), the adhesion to the damping material part 3 peeled off Even when the rubber is broken or the rubber is broken, the bridge portion 5c is plastically deformed so that the remaining energy can be absorbed. That is, when the damping material portion 3 is peeled off due to large energy input or when the rubber breaks, each bridge portion 5c acts as a fault tolerance mechanism and plastically deforms to absorb the remaining energy. It demonstrates the function of improving the reliability of earthquake resistance and vibration control performance.

  The damping material portion 3 not only fills the interior space of the cylindrical fixing portion 5 but also forms a surface layer on the outer surface of the cylindrical fixing portion 5. Between the adjacent bridge portions 5c, an attenuation material portion 3 is provided so as to be flush with the surface of the surface layer of the bridge portion 5c, and the attenuation material portion 3 and the surface layer in the internal space at that portion. Attenuating material portion 3 is integrally coupled. In addition, the damping material portion 3 is provided at the end portion of the cylindrical fixing portion 5 on the side opposite to the side where the plate-like fixing portion 4 is continuously provided so as to be flush with the surface layer of the end surface. Similarly, the damping material portion 3 in the internal space and the damping material portion 3 serving as the surface layer are integrally coupled at that portion. That is, the damping material portion 3 includes a portion 3 a (see FIG. 6) filled in the internal space of the cylindrical fixing portion 5 and a portion 3 b provided as a surface layer on the outer surface of the cylindrical fixing portion 5. The portion 3c provided in the portion and the portion 3d provided between the bridge portions 5c are integrally coupled. As a result, the damping material portion 3 surrounds the cylindrical fixing portion 5 and covers the entire cylindrical fixing portion 5 so that the cylindrical fixing portion 5 cannot be seen from the outside. In addition, the contact portion of the damping material portion 3 including the outer surface and the inner surface of the cylindrical fixing portion 5 with the cylindrical fixing portion 5 is vulcanized and bonded to the cylindrical fixing portion 5. The damping material portion 3 is integrated.

  In this way, the portion 3a filled in the internal space of the cylindrical fixing portion 5 and the portion 3b provided as a surface layer on the outer surface are joined and integrated by the portion 3d provided between the bridge portions 5c. Therefore, the coupling force between the damping material portion 3 and the cylindrical fixing portion 5 is strengthened. Furthermore, since it is made to couple | bond also by the part 3c provided in the edge part of the cylindrical fixing | fixed part 5, the coupling | bonding force of the damping material part 3 and the cylindrical fixing | fixed part 5 becomes stronger.

  The plate-like fixing portion 4 of the rigid material portion 2 is provided with a plurality of mounting holes 4a for fixing the plate-like fixing portion 4 to the column member 102 with a plurality of first fixing tools 7 (for example, wood screws). Yes.

  In addition to the first through hole 5d used for fixing to the bracing member 104, the first plate portion 5a of the cylindrical fixing portion 5 includes the damping material portion 3 in the internal space during vulcanization molding. A second through hole 5e is formed for the inflow. In addition to the third through-hole 5f used to fix the bracing material 104 to the second plate portion 5b from the outside of the first plate portion 5a with a plurality of second fixing tools 8 (for example, wood screws), At the time of vulcanization molding, a fourth through hole 5g for allowing the damping material portion 3 to flow into the internal space is formed. Then, as shown in FIG. 6, the second plate portion 5 b is fixed to the bracing material 104 by the plurality of second fixing tools 8 from the outside of the first plate portion 5 a. In addition, as the 1st and 2nd fixing tools 7 and 8, a nail etc. may be used instead of a wood screw, respectively.

  Further, the damping member portion filled in the second through hole 5e and the fourth through hole 5g is also provided as a surface layer on the outer surface of the portion 3a filled in the internal space of the cylindrical fixing portion 5. Since the portion 3b is coupled, the coupling force between the damping material portion 3 and the cylindrical fixing portion 5 is also enhanced by this portion.

  The joint damper 1 is formed by vulcanizing and bonding the damping material portion 3 to the cylindrical fixing portion 5 of the rigid material portion 2, and the manufacturing method thereof will be described with reference to FIGS. 5 and 7.

  The rigid material portion 2 is formed by using a plate material 2A (see FIG. 5) formed by cutting a rigid metal plate such as a steel plate (soft steel), and bending or bending the plate material 2A. The plate material 2A includes a portion 2Ac that becomes a part of the second plate portion 5b across the portions 2Ab and 2Ab that form a plurality of bridge portions 5c on both sides of the rectangular portion 2Aa that corresponds to the first plate portion 5a. The long portion 2AA in which 2Ad is continuously provided, and the short portion 2AB that becomes the plate-like fixing portion 4 in the direction perpendicular to the longitudinal direction of the long portion 2AA with respect to the rectangular portion 2Aa of the long portion 2AA 2ACs are arranged continuously with a substantially T-shape.

  Then, the attachment hole 4a is opened in the short part 2AB, and the first to fourth through holes 5d, 5e, 5f, 5g are opened in the long part 2AA.

  Next, the portion 2AC that becomes the coupling portion 6 is bent so as to form an angle of 90 degrees with respect to the rectangular portion 2Aa, and the convex portion 9 is ribbed to the portion in order to increase the cross-sectional secondary moment of the joint damper 1. Process. Further, the portions 2Ab, 2Ab to be the bridge portion 5c are bent to the side opposite to the bending direction of the portion 2AC, so that the portion 2Ac. A cylindrical fixing portion 5 having a gap serving as an internal space is formed between the first plate portion 5a and the second plate portion 5b by butting the two Ad end portions so as to mesh with each other.

  In this way, the rigid material portion 2 (see FIGS. 3B and 4B) having the plate-like fixing portion 4 and the cylindrical fixing portion 5 is formed.

  Then, a vulcanized adhesive is applied to the entire surface of the cylindrical fixing part 5 by immersing the entire cylindrical fixing part 5 in an adhesive tank, for example. As an adhesive, for example, Chemlock (registered trademark) 205 manufactured by LORD Co., Ltd. is used as one solution (primer), and Chemlock 6125 is used as the second solution.

  Next, as shown in FIG. 7, only the cylindrical fixing portion 3 of the rigid material portion 2 is placed in the cavity 11 a of the mold 11, and the outer surface of the cylindrical fixing portion 3 is between the inner surface of the mold 11. Position and install so that there is a gap.

  The mold 11 has an upper mold 11A and a lower mold 11B, and a cavity 11a is formed by connecting them. The outer surfaces of the first and second plate portions 5a and 5b are arranged on the inner surfaces of the upper die 11A and the lower die 11B so as to face the outer surfaces of the first and second plate portions 5a and 5b of the cylindrical fixing portion 5. A plurality of protrusions 11Aa and 11Ba are provided to contact the surface and form gaps therebetween. Further, the upper mold 11A is also provided with a columnar convex portion 11Ab that is inserted into the first through hole 5d of the first plate portion 5a and forms a through hole for inserting the second fixture 8. ing. On the other hand, in the lower mold 11B, a columnar convex portion that is inserted into the third through hole 5f of the second portion 5b and forms a through hole for inserting the second fixture 8 at the time of mounting and fixing. 11Bb is also provided. The cylindrical fixing portion 5 (rigid material portion 2) is positioned with respect to the mold 11 by inserting the convex portions 11Ab and 11Bb.

  A predetermined amount of unvulcanized high-attenuating rubber G, which becomes the damping material portion 3, is loaded into the upper concave portion 11Ac of the upper mold 11A, and the pressing projection 12a of the plunger 12 is inserted into the concave portion 11Ac so as to be unvulcanized. By pressing the high damping rubber G, the unvulcanized high damping rubber G is injected under pressure into the cavity 11a of the mold 11 through the injection hole 11Ad of the upper mold 11A.

  At this time, the uncured and high vulcanization height is smoothly passed through the space between the second and fourth through holes 5e, 5g and the bridge portion 5c of the first and second plate portions 5a, 5b and into the internal space of the cylindrical fixing portion 5. Damping rubber G flows in. By the convex portions 11Ab and 11Bb, the space portion for inserting the second fixture 8 (the hole formed by the damping material portion 3 communicating with the first and third through holes 5d and 5f) is filled with high damping rubber. Without being left as space.

  Thereafter, the damping material portion 3 is vulcanized and bonded to the cylindrical fixing portion 5 by pressurizing and heating, so that the joint damper 1 is formed.

  And in order to attach the joint damper 1 to the joint part of a building, first, while fixing the plate-shaped fixing | fixed part 4 to the pillar material 102 with the 1st fixing tool 7 through the attachment hole 4a, FIG.1, FIG.2 and FIG. 7, the second fixture 8 is applied from the outside of the first plate portion 5a through the first insertion hole 5d, and the second plate portion 5b is used as the bracing material 104 through the third through hole 5f. Fix it. As a result, the column member 102 and the bracing member 104 are coupled via the joint damper 1.

  In this way, when the horizontal load P is input to the wooden building and the column material 102 is deformed as shown in FIG. 8 during an earthquake or a typhoon roll, the work fixed to the column material 102 is performed. Deviation (relative displacement) occurs between the first plate portion 5a extending from the plate-like fixing portion 4 of the mouth damper 1 and the second plate portion 5b fixed to the end portion of the brace 104 in opposition thereto. However, such a shift is eliminated by the deformation of the damping material portion 3 and each bridge portion 5c provided in the cylindrical fixing portion 5, and thus energy can be absorbed.

  In this manner, by applying the joint damper 1 between the column member 102 and the bracing member 104 of the wooden building, the energy input to the wooden building due to an earthquake, a typhoon, or the like is applied to the damping member 3 and the bridge portion 5c. As a result, the energy absorption performance can be improved, and the reliability with respect to seismic performance and vibration control performance can be improved.

  Particularly, each bridge portion 5c is elastically deformed for a small energy input and the damping material portion 3 absorbs energy, and for a large energy input, the damping material portion 3 and the bridge portion 5c cooperate. When the energy is absorbed and the bond with the damping material portion 3 is peeled off due to greater energy input or when the rubber breaks, each bridge portion 5c plastically deforms to absorb the residual energy and acts as a fault tolerance mechanism. To do. Therefore, by applying the joint damper 1, it is possible to greatly improve the reliability with respect to the seismic performance and the vibration control performance.

  In addition to the above, the present invention can be implemented with the following modifications.

  (i) In the joint damper 1, the bridge portion 5 c is provided at the center in the width direction and at both ends in the width direction of the other side of the first plate portion 5 a, but is not limited thereto. For example, only one may be provided at the center in the width direction of the other side of the first plate portion 5a, or two may be provided at both ends in the width direction of the other side of the first plate portion 5a. In any case, the width of the bridge portion 5c is desirably set to a width of 2 to 60% as a whole with respect to the entire width of the other side of the first plate portion 5a.

  (ii) In the joint damper 1, the second plate portion 5 b is bent from the first plate portion 5 a to the side opposite to the bending direction of the plate-like fixing portion 4. According to the position of 104, the second plate portion 5b ′ is bent to the same side as the bending direction of the plate-like fixing portion 4 as shown in FIGS. 9 (a), 9 (b) and 10 (a), 10 (b). You may make it make it.

  Further, as shown in FIGS. 11A and 11B, the second plate portion 5b ″ is formed in a plate shape from the opposite side of the first plate portion 5a to the side on which the plate-like fixing portion 4 is provided. You may make it the structure bent through the bridge | bridging part 5c '' on the same side as the bending direction of the fixing | fixed part 4, or an other side. In this case, the opposite side of the second plate portion to the portion where the bridge portion 5c ″ is provided is in contact with the plate-like fixing portion 4. However, a coupling structure in which a part is inserted may be used. Similarly to the case shown in FIGS. 9A and 9B, the second plate portion 5 b ″ can be bent to the same side as the bending direction of the plate-like fixing portion 4.

  (iii) Although the plate-like fixing portion 4 is fixed only to the column member 102, the plate-like fixing portion 4A fixed to the base 103 as shown in FIG. Can also be provided. In this case, the plate-like fixing portion 4 and the plate-like fixing portion 4A form an angle of 90 °.

  (iv) Although the surface layer is formed for the cylindrical fixing portion, it is also possible to provide the surface layer for the plate-like fixing portion.

(v) Although a metal plate such as a steel plate (soft steel) is used for the rigid material portion 2, a synthetic resin plate such as FRP can also be used. High damping rubber is used for the damping material portion 3, but other viscoelastic bodies such as polyurethane rubber and butyl rubber, and elastic bodies such as natural rubber may be used. If an elastic body is used, the effect of maintaining the shape of the bridge portion 5c can be expected.
(vi) As shown in FIG. 13, the internal space of the cylindrical fixing portion 5 is not provided with the damping material portion 3 including the portion between the adjacent bridge portions 5c in the portion corresponding to the bridge portion 5c, A void S is formed.
(vii) The joint damper 1 has one cylindrical fixing portion, but the cylindrical fixing portion may be divided. For example, as shown in FIG. 14 (a), the rigid plate portion 25a of the cylindrical fixing portion 25 has two rectangular holes 25aa in parallel, and the end portions of the rectangular holes 25aa in the longitudinal direction. A second plate portion 25b is provided in parallel on the side opposite to the side where the plate-like fixing portion 24 is located via a bridge portion 25c. And as shown in FIG.14 (b) (c), the damping material part 23 is the space between the 1st and 2nd board parts 25a and 25b, and the surface of the 1st and 2nd board parts 25a and 25b. It is vulcanized and bonded so as to form a layer and covers the entire tubular fixing portion 25. And it deform | transforms as shown in FIG.14 (d).

DESCRIPTION OF SYMBOLS 1 Joint damper 2 Rigid material part 2A Plate material 2AA Long part 2AB Short part 2AC Part which becomes coupling | bond part 6 2Aa Rectangular part 2Ab, 2Ab Part which becomes bridge part 5c 2Ac, 2Ad It becomes a part of 2nd board part 5b Part 3 Attenuating material part 3a to 3d part 4 Plate-like fixing part 4a Mounting hole 5 Cylindrical fixing part 5a First plate part 5b Second plate part 5c Bridge part 5d First through-hole 5e Second through-hole 5f 3rd through-hole 5g 4th through-hole 6 Coupling part 7 1st fixing tool 8 2nd fixing tool 9 Convex part 11 Mold 11a Cavity 11A Upper mold 11Aa Protrusion 11Ab Convex part 11Ac Concave part 11Ad Injection hole 11B Lower mold 11Ba Protrusion 11Bb Protrusion 101 Wooden building 102 Column material 103 Base 104 Bracing material G Unvulcanized high damping rubber S Gap

Claims (8)

It is a joint damper attached between a pillar material extending in the vertical direction of a wooden building and a brace material extending in a direction inclined with respect to the pillar material,
A rigid material portion having a plate-like fixing portion fixed to the column member, and a cylindrical fixing portion that is connected to the plate-like fixing portion and fixed to the brace material, and an internal space of the cylindrical fixing portion. A damping material part that fills and forms a surface layer on the outer surface of the cylindrical fixing part,
The cylindrical fixing portion is arranged side by side with a first plate portion to which the plate-like fixing portion is continuously provided and a second plate portion extending in parallel with the first plate portion. A plurality of bridge portions connecting the two plate portions,
The damping damper is characterized in that a part filled in the internal space of the cylindrical fixing part and a part provided as a surface layer on the outer surface are joined to the damping material part. The joint damper according to claim 1, wherein the damping material portion is provided so as to be flush with a surface of the surface layer of the bridge portion between the adjacent bridge portions.   The internal space of the cylindrical fixing part is characterized in that the part corresponding to the bridge part is not provided with the attenuation material part, including between the adjacent bridge parts, and is a gap. The joint damper according to claim 1.   Further, the damping material portion is provided so as to be flush with the surface of the surface layer of the end surface of the cylindrical fixing portion on the side opposite to the side where the plate-like fixing portion is continuously provided. The joint damper according to any one of claims 1 to 3, wherein the joint damper is provided. In the first plate portion, a first through hole used for fixing to the bracing material and unvulcanized damping rubber that becomes the damping material portion flows into the internal space during pressure vulcanization molding. A second through hole is formed,
In the second plate portion, a third through hole used for fixing to the bracing material and unvulcanized damping rubber that becomes the damping material portion flows into the internal space during pressure vulcanization molding. The joint damper according to any one of claims 1 to 4, wherein a fourth through hole is formed. The rigid material portion is formed by bending a rigid plate.
The plate member has a portion in which a portion to be a part of the second plate-shaped fixing portion is continuously provided on both sides of a rectangular portion corresponding to the first plate portion with a portion to be the bridge portion interposed therebetween. A short portion that becomes the plate-like fixing portion is connected to the portion and the rectangular portion in a direction perpendicular to the longitudinal direction of the long portion, and has a substantially T-shape. Yes,
The cylindrical fixing portion is formed by bending the portion that becomes the bridge portion with respect to the rectangular portion so that the tip portions of the portion that becomes a part of the second plate portion are brought into contact with each other. The joint damper according to any one of claims 1 to 5. It is a manufacturing method of the spigot damper according to any one of claims 1 to 6,
After adhering adhesive to the entire surface of the cylindrical fixing part, only the cylindrical fixing part is placed in the mold so that a gap is formed between the outer surface of the cylindrical fixing part and the inner side surface of the mold. Installed to have
Injecting unvulcanized damping rubber to be the damping material part through the injection hole of the mold into the mold under pressure,
Thereafter, the damping material portion is vulcanized and bonded to the cylindrical fixing portion of the rigid material portion by pressurizing and heating.   The mold is in contact with the outer surfaces of the first and second plate portions on the inner surface of the mold, facing the outer surfaces of the first and second plate portions of the cylindrical fixing portion. The manufacturing method of the joint damper of Claim 7 in which the some protrusion which forms a clearance gap between them is provided.

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