JP4579201B2 - Damper connection structure - Google Patents

Description

  The present invention relates to a connecting structure of, for example, a hydraulic damping damper, and more particularly to a damper connecting structure for connecting both ends of the damper to a building structure.

  As a conventional damper connection structure, for example, there is a structure as shown in FIGS. 11 to 13 (see Patent Document 1). In the conventional hydraulic damping damper 50 shown in FIG. 11, one end of a connecting member 52 is connected to one end of the hydraulic cylinder 32, and the other end of the connecting member 52 is as shown in FIG. It is connected to one bracket 57 of the building structure via a spherical bearing 60.

  On the other hand, as shown in FIG. 11, the tip of the piston rod 34 opposite to the connecting member 52 with respect to the hydraulic cylinder 32 is connected to the other bracket 58 of the building structure via a spherical bearing 60. .

  As shown in FIG. 13, the spherical bearing 60 includes a bracket 57 on the building structure side and a pair of shaft support members 61 that are fixed to the distal end portion of the connecting member 52 and arranged on both sides of the bracket 57 so as to sandwich the bracket 57. Both ends of the shaft are supported between the shaft member 63 and the shaft support member 61 and the bracket 57 are connected to each other so that the rotation direction is freely within a predetermined range. .

  That is, the spherical bearing 60 has a bearing inner ring member 65 whose shaft hole is fitted to the shaft member 63 and a convex spherical surface is formed on the outer peripheral surface thereof, and an outer peripheral portion supported by the outer ring support member 67 and the bearing on the inner peripheral surface thereof. The bearing outer ring member 69 is formed with a concave spherical surface slidably contactable with the convex spherical surface of the inner ring member 65.

In the building structure, when an external force such as an earthquake is applied in the axial direction to the hydraulic damping damper 50 as described above, relative movement between the hydraulic cylinder 32 and the piston connected to the piston rod 34 is performed. And a damping force is applied to the front or back surface of the piston in the cylinder 32 in the direction opposite to the moving direction. For this reason, a damping force proportional to the pressure difference between the pair of hydraulic chambers on the front and back sides of the piston is applied to the piston, and the hydraulic damping damper 50 can exhibit a damping operation by this damping force.
JP 2004-108577 A

  However, in such a conventional damper coupling structure, as shown in FIG. 13, the contact portion C1 between the shaft member 63 and the bearing inner ring member 65, and the contact portion C2 between the bearing inner ring member 65 and the bearing outer ring member 69. The contact portion C3 between the bearing outer ring member 69 and the outer ring support member 67 and the contact portion C4 between the shaft member 63 and the shaft support member 61 have backlash, and the backlash accumulates and acts as a larger backlash.

  When the play of a plurality of places is accumulated and acts as a large play as in the case of the spherical bearing 60, when the direction of the external force applied to the hydraulic damping damper 50 in the reciprocating direction is switched to the reverse direction, During the initial period of relative displacement between the bracket 57 and the shaft support member 61 by the amount of play, no damping force is generated in the hydraulic damping damper 50.

  For this reason, when an external force having the same amplitude as the accumulated backlash, such as wind fluctuation, is applied, the damping force is not generated at all in the hydraulic vibration control damper 50. In addition, when an external force with a large amplitude such as an earthquake is applied, the amount of energy absorption is reduced, and the ability of the hydraulic vibration control damper 50 to suppress the external force is lower than when there is no backlash. There was a problem of doing.

  Further, in the conventional damper connecting structure, as shown in FIG. 13, since a member having a spherical surface, that is, a bearing inner ring member 65 or a bearing outer ring member 69 is used, a spherical surface is formed on the member. Since complicated and high-precision processing has to be performed, there is a problem in that the cost of the damper coupling structure is increased.

  Therefore, in view of the above problems, the present invention provides a damper coupling structure that can operate in the same manner as a spherical bearing at a coupling portion between a vibration damper and a building structure, and is less expensive than a spherical bearing. Is an issue.

  In addition, in view of the above problems, the present invention can perform the same operation as the spherical bearing at the connecting portion between the vibration damper and the building structure, and is less expensive than the spherical bearing. It is an object of the present invention to provide a damper coupling structure that can reliably remove backlash.

In order to solve the above problems, the present invention
In the damper connection structure that is connected between the building structure and the end of the damping damper and transmits the force between them,
A pair of opposingly formed square cylinders provided between the building structure and the end of the damping damper, having plate-like sides on four sides and a cross-section of a square shape. The pair of first fitting holes is inserted into each of the pair of first fitting holes opened on the same axis in each of the side parts and the other pair of side parts orthogonal to the pair of side parts. A B-shaped member having a pair of second fitting holes opened on the same axis perpendicular to the axis of the joint hole ;
A pair of fitting holes formed in a member provided in the building structure and a pair of the first fitting holes that are arranged so that their end faces face each other in the axial direction. First rotating means for allowing relative rotation about a first axis between the building structure and the B-shaped member by fitting each of the first pins;
A pair of first holes arranged in the fitting hole formed in the member provided in the vibration damping damper and the pair of second fitting holes so that the end surfaces are opposed to each other in the axial direction . And a second rotating means for allowing relative rotation about the second axis between the end of the vibration damping damper and the square member by fitting each of the two pins. It is a feature.

Further, in the damper coupling structure of the present invention, a taper is formed at an outer end portion of the first and second pins farther from the center of the B-shaped member , and the outer end portion is a ring having a wedge-shaped cross section. It is characterized by being fitted to a surrounding member via a member.

Further, the damper connecting structure of the present invention, the first, and the outer side end portion of the second pin, between the inner end and near the center of the shaped member of the B, toward said outer end diameter The step portion is formed so as to be large.

Further, the damper connecting structure of the present invention, the first, holes outer side end portion is opened to the member to be fitted in the second pin, and characterized by having a larger diameter than the diameter of the outer end To do.

Further, the damper connecting structure of the present invention, the first, the outer side end portion of the second pin, the first, the same diameter as the diameter of the inner end close to the center of the hollow square member of the second pin From the above, a taper having a diameter that decreases toward the outside is formed.

  In the damper coupling structure of the present invention, the inner end portions of the first and second pins are press-fitted into holes to be fitted, and the taper of the outer end portion and the ring member having a wedge-shaped cross section are relatively rotatable. It is characterized by becoming.

  The damper coupling structure of the present invention is characterized in that the ring member having a wedge-shaped cross section is formed of an oil-containing metal material.

According to the present invention as described above,
In the damper connection structure that is connected between the building structure and the end of the damping damper and transmits the force between them,
In the damper connection structure that is connected between the building structure and the end of the damping damper and transmits the force between them,
A pair of opposingly formed square cylinders provided between the building structure and the end of the damping damper, having plate-like sides on four sides and a cross-section of a square shape. The pair of first fitting holes is inserted into each of the pair of first fitting holes opened on the same axis in each of the side parts and the other pair of side parts orthogonal to the pair of side parts. A B-shaped member having a pair of second fitting holes opened on the same axis perpendicular to the axis of the joint hole ;
A pair of fitting holes formed in a member provided in the building structure and a pair of the first fitting holes that are arranged so that their end faces face each other in the axial direction. First rotating means for allowing relative rotation about a first axis between the building structure and the B-shaped member by fitting each of the first pins;
A pair of first holes arranged in the fitting hole formed in the member provided in the vibration damping damper and the pair of second fitting holes so that the end surfaces are opposed to each other in the axial direction . And a second rotating means for allowing relative rotation about the second axis between the end of the vibration damping damper and the B-shaped member by fitting each of the two pins. ,
The damper coupling structure can operate in the same manner as the spherical bearing at the coupling portion between the damping damper and the building structure, and is less expensive than the spherical bearing.

Further, in the damper coupling structure of the present invention, a taper is formed at an outer end portion of the first and second pins farther from the center of the B-shaped member , and the outer end portion is a ring having a wedge-shaped cross section. The backlash between the constituent members can be surely removed by fitting to the surrounding members via the members.

Further, the damper connecting structure of the present invention, the first, and the outer side end portion of the second pin, between the inner end and near the center of the shaped member of the B, toward said outer end diameter As a result of the formation of the step portion that increases the length of the pin, it is possible to easily determine the position in the length direction of the pin, thereby improving the assemblability.

Further, the damper connecting structure of the present invention, the first, drilled holes in the member to the outer end of the second pin is fitted, by having a larger diameter than the diameter of the outer end, the pin Can be easily inserted, so that the assemblability can be improved.

Further, the damper connecting structure of the present invention, the first, the outer side end portion of the second pin, the first, the same diameter as the diameter of the inner end close to the center of the hollow square member of the second pin Therefore, the backlash between the constituent members can be surely removed by forming the taper so that the diameter decreases toward the outside.

  In the damper coupling structure of the present invention, the inner end portions of the first and second pins are press-fitted into holes to be fitted, and the taper of the outer end portion and the ring member having a wedge-shaped cross section are relatively rotatable. As a result, play between the constituent members can be reliably removed.

  In addition, the damper connection structure of the present invention is smooth in rotating operation because the ring member having a wedge-shaped cross section is formed of an oil-containing metal material, thereby improving the slidability and preventing rust.

Hereinafter, the best mode for carrying out the damper connecting structure according to the present invention will be specifically described with reference to the drawings.
FIGS. 1 to 9 are views referred to for explaining the damper coupling structure according to the first embodiment of the present invention. The same members as those in the conventional damper connection structure will be described using the same reference numerals.

  As shown in FIG. 1, the damper connecting structure according to the present embodiment includes a hydraulic cylinder 32 (seismic damper) and a connecting member 52 connected to one end of the hydraulic cylinder 32 (seismic damper) as a whole. The brace has a damping function by the hydraulic cylinder 32 and is used to connect it to the building structure.

In the present embodiment, one end portion of the connecting member 52 is connected to one end portion of the hydraulic cylinder 32, and the connecting portion 53 provided at the other end portion of the connecting member 52 is connected to the column via the connecting structure 54. It is connected to a fixed frame 62 fixed to a building structure such as a beam or a beam.

  On the other hand, the tip of the piston rod 34 that protrudes in the axial direction from the end opposite to the connecting member 52 in the hydraulic cylinder 32 is fixed to a building structure such as a column or a beam via the connecting structure 56. The fixed frame 64 is connected.

  As shown in FIG. 2A, the connecting structure 54 connected to the connecting portion 53 of the connecting member 52 is connected to the fixed frame 62 shown in FIG. 1 via the shaft support member 66 that supports the rotating shaft. It is like that.

  Further, as shown in FIG. 2B, the connecting structure 56 connected to the piston rod 34 of the hydraulic cylinder 32 is connected to the fixed frame 64 shown in FIG. 1 via a shaft support member 68 that supports the rotating shaft. It has come to be.

  As shown in FIG. 3, the shaft support member 66 shown in FIG. 2 (a) has a bottom plate portion 66a fixed in contact with the fixed frame 62, and a pair of rising portions 66b from both ends of the bottom plate portion 66a. 66b rises, and a bearing hole 66c for supporting the rotating shaft is formed at the tip of the rising portion 66b.

  Also in the shaft support member 68 shown in FIG. 2B, a bottom plate portion, rising portions 68b and 68b, and a bearing hole 68c similar to the bottom plate portion 66a, the rising portions 66b and 66b and the bearing hole 66c of the shaft support member 66 are formed. (See FIG. 6).

  As shown in FIG. 4, between the pair of rising portions 66 b, 66 b of the shaft support member 66, the connecting portion 53 of the connecting member 52 is disposed at the center and formed so as to surround the connecting portion 53. A B-shaped member 72 (endless member) is arranged.

The central portion of each side member (sides) constituting the figure four sides of the shaped member 72 of this B, are formed so as to open the fitting hole 74 and fitting hole 76, 76 facing each other ing. The fitting hole 74 is disposed on the same axis as the bearing hole 66c of the shaft support member 66, and the fitting hole 76 is a through hole formed in the connecting portion 53 so as to extend in a direction perpendicular to the length direction thereof. It arrange | positions on the same axis line as the hole 53a.

  An equal-diameter portion 80a of the stepped pin 80 is press-fitted without gap into the fitting hole 74 of the B-shaped member 72, and a tapered portion having a larger diameter than the equal-diameter portion 80a in the stepped portion of the stepped pin 80. 80 b is disposed in the bearing hole 66 c of the shaft support member 66.

  An outwardly open tapered gap is formed between the tapered portion 80b of the stepped pin 80 and the bearing hole 66c of the shaft support member 66, and the ring member 82 having a wedge-shaped cross section is formed in this gap. The ring member 82 is held by screwing the drop-off prevention plate 84 to the rising portion 66b of the shaft support member 66 so that the ring member 82 is not dropped and is not dropped.

  Since the ring member 82 is made of oil-impregnated metal, the tapered portion 80b of the stepped pin 80 is always lubricated so as to be rotatable within the ring member 82.

  An equal-diameter portion 86a of a stepped pin 86 is press-fitted without gaps in both end openings of the through-hole 53a of the connecting portion 53 of the connecting member 52, and the stepped portion of the stepped pin 86 is larger than the equal-diameter portion 86a. A tapered portion 86 b having a diameter is disposed in the fitting hole 76 of the square-shaped member 72.

  An outwardly open tapered gap is formed between the tapered portion 86b of the stepped pin 86 and the fitting hole 76 of the U-shaped member 72, and a ring member 88 having a wedge-shaped cross section is formed in this gap. The ring member 88 is held by screwing the drop-off prevention plate 90 to the U-shaped member 72 so that the ring member 88 is not dropped and the ring member 88 is not dropped.

  Since the ring member 88 is made of oil-impregnated metal, the tapered portion 86b of the stepped pin 86 is always lubricated so as to be rotatable within the ring member 88.

  As shown in FIG. 2B, a screw portion 92 a of a knuckle member 92 is screwed to the tip portion of the piston rod 34. As shown in FIG. 5, the knuckle member 92 is formed with a knuckle main body 92b adjacent to the axial direction of the threaded portion 92a. The knuckle main body 92b has an axis extending in a direction orthogonal to the axial direction. A hole 92c is formed.

  As shown in FIG. 6, a knuckle body 92b of a knuckle member 92 as shown in FIG. 5 is disposed in the center between the pair of rising portions 68b, 68b of the shaft support member 68. A square-shaped member 94 (endless member) as shown in FIG. 7 formed so as to surround is disposed.

A fitting hole 96, 96 and fitting holes 98, 98 facing each other are formed in the central part of each side member (side part) constituting the four sides in the figure of the B-shaped member 94. ing. The fitting hole 96 is arranged on the same axis as the bearing hole 68 c of the shaft support member 68, and the fitting hole 98 is arranged on the same axis as the through hole 92 c of the knuckle member 92.

  An equal diameter portion 100a of the stepped pin 100 is press-fitted without gap into the fitting hole 96 of the B-shaped member 94, and a tapered portion having a larger diameter than the equal diameter portion 100a in the step portion of the stepped pin 100. 100 b is disposed in the bearing hole 68 c of the shaft support member 68.

  An outwardly open tapered gap is formed between the tapered portion 100b of the stepped pin 100 and the bearing hole 68c of the shaft support member 68, and the ring member 102 having a wedge-shaped cross section is formed in this gap. The ring member 102 is held by screwing the drop-off preventing plate 104 to the rising portion 68b so that the ring member 102 is not dropped and is not dropped.

  Since the ring member 102 is made of oil-impregnated metal, the tapered portion 100b of the stepped pin 100 is always lubricated so as to be rotatable within the ring member 102.

  In the through hole 92c of the knuckle member 92, an equal-diameter portion 106b of the taper pin 106 having the taper portions 106a formed at both ends is press-fitted without any gap. It is disposed in the joint hole 98.

  An outwardly open tapered gap is formed between the tapered portion 106a of the taper pin 106 and the fitting hole 98 of the B-shaped member 94, and the wedge-shaped ring member 108 having a wedge-shaped cross section is formed in this gap. The ring member 108 is held by screwing the drop-off prevention plate 110 to the square-shaped member 94 so that the ring member 108 does not fall off.

  Since the ring member 108 is made of oil-impregnated metal, the tapered portion 106 a of the taper pin 106 is always lubricated so as to be rotatable within the ring member 108.

FIG. 8 is an exploded view for explaining an assembling procedure of the connecting structure 54.
When assembling the connecting structure 54, first, the connecting portion 53 of the connecting member 52 is fitted into the inner space of the U-shaped member 72, and the through hole 53 a of the connecting portion 53 and the U-shaped member 72 are fitted. The positions of the holes 76 are adjusted so that they are on the same axis.

  Next, the equal diameter portion 86a of the stepped pin 86 is press-fitted into the through hole 53a of the connecting portion 53, and the stepped portion of the stepped pin 86 comes into contact with the peripheral surface of the connecting portion 53 where the through hole 53a opens. The stepped pin 86 is pushed into the through hole 53a until it stops.

  Then, the ring member 88 is fitted into the gap between the fitting hole 76 of the U-shaped member 72 and the tapered portion 86b of the stepped pin 86, and the B-shaped member 72, the ring member 88, and the stepped pin 86 are engaged. The ring member 88 is pushed in until there is no minute gap between the members. In order to push the ring member 88 in this way, the drop-off prevention plate 90 brought into contact with the outer end surface of the ring member 88 is pressed toward the square member 72 through tightening of the screw member.

  Next, the outer shape of the B-shaped member 72 is sandwiched between the pair of rising portions 66b, 66b of the shaft support member 66, and the bearing hole 66c of the shaft support member 66 and the fitting hole 74 of the B-shaped member 72 are formed. The positions are adjusted so that they are on the same axis.

  Then, the equal-diameter portion 80a of the stepped pin 80 is press-fitted into the fitting hole 74 of the B-shaped member 72, and the stepped portion of the stepped pin 80 is surrounded by the fitting hole 74 of the B-shaped member 72. The equal-diameter portion 80a of the stepped pin 80 is pushed into the fitting hole 74 until it comes into contact with the surface and stops.

Next, the ring member 82 is fitted into the gap between the fitting hole 74 of the B-shaped member 72 and the tapered portion 80b of the stepped pin 80, and the B-shaped member 72, the ring member 82, and the stepped pin are fitted. The ring member 82 is pushed in until there is no minute gap between the 80 members. In order to push in the ring member 82 in this way, the drop-off prevention plate 84 brought into contact with the outer end face of the ring member 82 is pressed toward the rising portion 66b of the shaft support member 66 through tightening of the screw member.
In this way, the assembly of the connection structure 54 is completed.

FIG. 9 is an exploded view for explaining an assembling procedure of the connecting structure 56.
When assembling the connecting structure 56, first, the screw portion 92 a of the knuckle member 92 is screwed to the tip of the piston rod 34 of the hydraulic cylinder 32, and the knuckle body 92 b of the knuckle member 92 is attached to the rod-shaped member 94. The inner space is fitted so that the positions of the through hole 92c of the knuckle member 92 and the fitting hole 98 of the U-shaped member 94 are aligned with each other on the same axis.

  Next, the equal diameter portion 106b of the taper pin 106 is press-fitted into the through hole 92c of the knuckle member 92, and the boundary line between the taper portion 106a and the equal diameter portion 106b of the taper pin 106 opens so that the through hole 92c of the knuckle member 92 opens. The equal-diameter portion 106b of the taper pin 106 is pushed into the through hole 92c until it coincides with the surrounding surface.

  Then, the ring member 108 is fitted into the gap between the fitting hole 98 of the U-shaped member 94 and the tapered portion 106a of the taper pin 106, and the members of the B-shaped member 94, the ring member 108, and the taper pin 106 are interposed. The ring member 108 is pushed in until the minute gap disappears. In order to push the ring member 108 in this way, the drop-off prevention plate 110 brought into contact with the outer end surface of the ring member 108 is pressed toward the square-shaped member 94 through tightening of the screw member.

  Next, the outer shape of the U-shaped member 94 is sandwiched between the pair of rising portions 68b, 68b of the shaft supporting member 68, and the bearing hole 68c of the shaft supporting member 68 and the fitting hole 96 of the B-shaped member 94 are formed. The positions are adjusted so that they are on the same axis.

  Then, the equal-diameter portion 100a of the stepped pin 100 is press-fitted into the fitting hole 96 of the square-shaped member 94, and the stepped portion of the stepped pin 100 is surrounded by the fitting hole 96 of the square-shaped member 94. The stepped pin 100 is pushed into the fitting hole 96 until it comes into contact with the surface and stops.

Next, the ring member 102 is fitted into the gap between the fitting hole 96 of the B-shaped member 94 and the tapered portion 100b of the stepped pin 100, and the B-shaped member 94, the ring member 102, and the stepped pin are fitted. The ring member 102 is pushed in until there is no minute gap between the 100 members. In order to push the ring member 102 in this way, the drop-off prevention plate 104 brought into contact with the outer end surface of the ring member 102 is pressed toward the rising portion 68b of the shaft support member 68 through tightening of the screw member.
Thus, the assembly of the connection structure 56 is completed.

  According to the first embodiment of the present invention, the axis lines of the stepped pins 80, 86, 100, the taper pin 106, and the piston rod 34 correspond to the three axes of X, Y, and Z. Since the relative rotation between the members can be allowed freely around each of the members, the connecting structures 56 and 54 are connected to the hydraulic cylinder 32 and the connecting member 52 and the fixed frames 64 and 62 of the building structure. It can operate in the same manner as when a spherical bearing is used.

  Further, since it is not necessary to use a member having a spherical surface like a spherical bearing, it is not necessary to perform complicated and high-precision processing for forming a spherical surface on the member, so that the damper connecting structure is less expensive than the spherical bearing. .

  In addition, since the inner end of each pin is press-fitted into the hole to be fitted, or a wedge-shaped ring member is fitted to the tapered portion of the outer end, the play between each component is reliably removed. can do.

  Further, according to the above embodiment, the tapered portion has a diameter between the tapered portions 80b, 86b, 100b of the stepped pins 80, 86, 100 and the equal diameter portions 80a, 86a, 100a. Since the stepped part is formed to be large, when the constant diameter part of the stepped pin is press-fitted into the hole into which the hole is pressed, the stepped part collides with the surface where the hole opens, thereby completing the press-fitting of the pin. You can easily know what you did.

  Moreover, according to the said embodiment, since the hole opened in the member which the taper part of each pin fits has a diameter larger than the diameter of a taper part, it is the hole which the equal diameter part of a pin press-fits. Since the alignment between the inlet of the pin and the tip of the constant diameter portion of the pin press-fitted into the hole can be visually confirmed, the alignment can be easily performed.

FIG. 10 is a view showing a damper coupling structure according to the second embodiment of the present invention.
In the first embodiment, the case where the braces are provided on the diagonal line of the building structure configured in a rectangular shape by the columns and the beams is described, whereas in the second embodiment, the V The two braces 121 and 122 arranged in a letter shape are coupled to the coupling structure 56 via the coupling frame 124 and the shaft support member 68 at the lower end coupling portion in the drawing, and are fixed to the fixed frame 126 fixed to the building structure. The difference is that the connecting structure 54 is connected via the support member 66, and the other points are the same as those of the above embodiment.

  Even in the second embodiment of the present invention, even if a spherical bearing is not used for the connecting portion between the both ends of the hydraulic cylinder 32 and the building structure, the operation is similar to the case where the spherical bearing is used in the connecting portion. In addition to the fact that the damper coupling structure is less expensive than the spherical bearing, play between the constituent members can be reliably removed.

  In the above-described embodiment, both the shaft support members 66 and 68 are arranged so that the left and right symmetrical centerlines of the rising portions 66b and 68b extend in a direction parallel to the axis of the hydraulic cylinder 32. Although the case has been described, in the present invention, the damper coupling structure may be configured so that the symmetrical center line of one or both of the shaft support members 66 and 68 is orthogonal to the axis of the hydraulic cylinder 32.

  In the above-described embodiment, the case where the present invention is applied to the hydraulic cylinder 32 has been described. However, the present invention needs to perform the same operation as that of the spherical bearing in the connecting portion, and the backlash between the constituent members. If it is necessary to prevent this, it can be applied to a vibration damper other than the hydraulic type.

It is a front view which shows the damper connection structure used in order to connect the hydraulic cylinder 32 to a building structure. FIG. 2A is a view showing a connection state between the connection structures 54 and 56, FIG. 2A is a view showing a connection state between the connection structure 54 and its peripheral members, and FIG. It is a figure which shows these connection states. FIG. 3A is a view showing the shaft support member 66, FIG. 3A is a view of the shaft support member 66 viewed from the axial direction of the bearing hole 66c, and FIG. 3B is a view of the shaft support member 66 in FIG. It is. It is an AA arrow directional cross-sectional view of the connection structure 54 shown to Fig.2 (a) which shows the assembly state of the connection structure 54. FIG. FIGS. 5A and 5B are views showing the knuckle member 92, FIG. 5A is a side view seen from the axial direction of the through-hole 92c, and FIG. 5B is a view taken along the arrow A of the knuckle member 92 in FIG. . FIG. 6 is a cross-sectional view taken along line B-B of the connection structure 56 shown in FIG. 2B, showing an assembled state of the connection structure 56. It is a front view which shows the square-shaped member 94 in FIG. FIG. 5 is an exploded view of a connection structure 54 that connects a shaft support member 66 and a connection portion 53 of a connection member 52. FIG. 6 is an exploded view of a connection structure 56 that connects a shaft support member 68 and a knuckle member 92 of a piston rod 34. It is a figure which shows the attachment state of the damper connection structure which concerns on the 2nd Embodiment of this invention. It is a figure which shows the conventional damper connection structure. It is the elements on larger scale of the damper connection structure shown in FIG. It is an expanded sectional view of the spherical bearing 60 in FIGS.

Explanation of symbols

32 Hydraulic cylinder 34 Piston rod 50 Hydraulic damping damper 52 Connecting member 53 Connecting portion 53a Through hole 54 Connecting structure 56 Connecting structure 57 Bracket 58 Bracket 60 Spherical bearing 61 Shaft support member 62 Fixed frame 63 Shaft member 64 Fixed frame 65 Bearing inner ring Member 66 Shaft support member 66a Bottom plate portion 66b Rising portion 66c Bearing hole 67 Outer ring support member 68 Shaft support member 68b Rising portion 68c Bearing hole 69 Bearing outer ring member 72 Hollow member 74 Fitting hole 76 Fitting hole 80 Stepped pin 80a Equal-diameter portion 80b Tapered portion 82 Ring member 84 Drop-off prevention plate 86 Stepped pin 86a Equi-diameter portion 86b Taper portion 88 Ring member 90 Drop-off prevention plate 92 Knuckle member 92a Screw portion 92b Knuckle body 92c Through hole 94 Hollow member 96 fitting hole 98 fitting Hole 100 Stepped pin 100a Equal diameter portion 100b Tapered portion 102 Ring member 104 Falling prevention plate 106 Taper pin 106a Taper portion 106b Equal diameter portion 108 Ring member 110 Falling prevention plate 121, 122 Brace 124 Connection frame 126 Fixed frame C1 Contact portion C2 contact part C3 contact part C4 contact part

Claims (7)

In the damper connection structure that is connected between the building structure and the end of the damping damper and transmits the force between them,
A pair of opposingly formed square cylinders provided between the building structure and the end of the damping damper, having plate-like sides on four sides and a cross-section of a square shape. The pair of first fitting holes is inserted into each of the pair of first fitting holes opened on the same axis in each of the side parts and the other pair of side parts orthogonal to the pair of side parts. A B-shaped member having a pair of second fitting holes opened on the same axis perpendicular to the axis of the joint hole ;
A pair of fitting holes formed in a member provided in the building structure and a pair of the first fitting holes that are arranged so that their end faces face each other in the axial direction. First rotating means for allowing relative rotation about a first axis between the building structure and the B-shaped member by fitting each of the first pins;
A pair of first holes arranged in the fitting hole formed in the member provided in the vibration damping damper and the pair of second fitting holes so that the end surfaces are opposed to each other in the axial direction . And a second rotating means for allowing relative rotation about the second axis between the end portion of the damping damper and the U-shaped member by fitting each of the two pins. Damper connection structure.   A taper is formed at the outer end of the first and second pins farther from the center of the B-shaped member, and the outer end is fitted to the surrounding member via a ring member having a wedge-shaped cross section. The damper coupling structure according to claim 1, wherein:   A step portion is formed between the outer end portion of the first and second pins and the inner end portion close to the center of the B-shaped member such that the outer end portion has a larger diameter. The damper connection structure according to claim 1, wherein:   The damper connection structure according to claim 2, wherein a hole formed in a member into which the outer end portions of the first and second pins are fitted has a diameter larger than the diameter of the outer end portion.   The outer diameter of the first and second pins is decreased from the same diameter as the inner diameter of the first and second pins near the center of the square member toward the outside. The damper connecting structure according to claim 2, wherein a taper is formed.   The inner end portion of the first and second pins is press-fitted into a fitting hole, and the taper of the outer end portion and the ring member having a wedge-shaped cross section are rotatable relative to each other. Item 6. The damper coupling structure according to Item 2 or 5.   The damper coupling structure according to claim 6, wherein the ring member having a wedge-shaped cross section is formed of an oil-containing metal material.

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