JP7207726B2 - Damping device or damping water tank equipped with this damping device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a damper device for damping vibrations caused by an earthquake or the like or a damping water tank equipped with this damper device, and more particularly to a damper device arranged in a liquid such as water or oil. .

Water tanks and tanks that store liquids such as drinking water are not only made of materials with high rigidity such as concrete, but also from the viewpoint of sanitation of the liquid to be stored, as well as for the purpose of reducing construction costs. In recent years, side panels made of metal such as stainless steel are often welded vertically and horizontally. However, in a water tank composed of a plurality of side panels, the weight of the liquid stored inside is considerably higher than the weight of the entire water tank. When vibration acts, the liquid inside is greatly swelled, and as a result, there is a high risk that the entire water tank will be deformed or destroyed.

Therefore, conventionally, a reinforcing structure in which the side panel is reinforced with a truss structure has been proposed and implemented for the purpose of making the water tank earthquake resistant (see Patent Document 1). That is, this reinforcing structure is formed by connecting a plurality of horizontal reinforcing members and a plurality of oblique reinforcing members to each other inside the side panel. Furthermore, conventionally, rubber plates are arranged between a plurality of lower metal plates placed on the ground side and a plurality of upper metal plates fixed to the bottom plate of the water tank for the purpose of damping the vibration of the water tank. proposed a water tank with damping performance (see Patent Document 2).

On the other hand, hydraulic or pneumatic damper devices have hitherto been widely used as means for imparting vibration damping properties to structures such as buildings.

JP 2010-149903 A JP 2018-144830 A

However, with the reinforcing structure disclosed in Patent Document 1, although it is possible to increase the rigidity of the entire water tank, depending on the magnitude of vibration caused by an earthquake, the risk of deformation or destruction of the entire water tank can be sufficiently reduced. It cannot be suppressed. In addition, in the water tank disclosed in Patent Document 2, it is not clear how far the damping performance will be exhibited, and there is concern that the rubber plate will deteriorate over a long period of time. If applied, the entire water tank must be raised or disassembled, and then the rubber plate must be placed, so it is practically impossible to apply to the existing water tank. is.

In addition, it is conceivable to arrange a plurality of damper devices around or inside the water tank to impart vibration control performance to the water tank, but conventional damper devices are expensive and The high cost of the entire water tank cannot be suppressed.

Therefore, the present invention has been proposed in order to solve the above-described problems of the conventional water tanks, etc., and is capable of effectively exhibiting vibration damping performance. It is an object of the present invention to provide a new damper device that can be installed in an existing water tank and at a low cost, or a damping water tank equipped with this damper device.

The present invention has been proposed to solve the above-mentioned problems, and a first invention (invention according to claim 1) relates to a damper device and has the following configuration. . That is, this damper device is a damper device arranged in a water tank in which a horizontal reinforcing member and an inclined reinforcing member are fixed to the inner side of a side wall. a piston body whose outer peripheral surface slides on the inner peripheral surface of the piston body to pressurize or depressurize the liquid in the recess; and a piston rod having a tip end fixed to the piston body, is formed with an opening through which liquid flows between the recess and the water tank, and/or a gap is formed between the inner peripheral surface of the cylinder and the outer peripheral surface of the piston body. , the cylinder has a cylinder-side fixed piece fixed to the horizontal reinforcing member, a cylinder-side fixed piece fixed to the inclined reinforcing member, one of the two-divided inclined reinforcing member, or one of the two-divided horizontal A cylinder side fixing piece fixed to one of the reinforcing members is formed, and the piston rod is provided with a piston side fixing piece fixed to the inclined reinforcing member when the cylinder side fixing piece is fixed to the horizontal reinforcing member. or, if the cylinder side fixed piece is fixed to the inclined reinforcing member, the piston side fixed piece fixed to the horizontal reinforcing member, or the piston side fixed to the other of the two divided inclined reinforcing members A fixed piece or a piston side fixed piece fixed to the other of the two divided horizontal reinforcing members is formed, and when the horizontal reinforcing member and the inclined reinforcing member are mutually pulled or compressed, or when the inclined reinforcing member is pulled When one of the reinforcing members and the other of the inclined reinforcing members are pulled or compressed relative to each other, or when one and the other of the horizontal reinforcing members divided into two are pulled or compressed relative to each other, the recess is formed. The liquid in the water tank flows into the water tank through the opening or the gap, or the liquid in the concave part flows out from the concave part into the water tank through the opening or the gap. is.

The damper device according to the first aspect of the invention comprises the cylinder, the piston body, and the piston rod. split up.
(1) In the first aspect, the cylinder (hereinafter referred to as cylinder side) is fixed to the horizontal reinforcing member via the cylinder side fixing piece, and the piston main body and the piston rod (hereinafter referred to as These are referred to as the piston side) are fixed to the inclined reinforcing member via the piston side fixing piece.
(2) In the second mode, contrary to the above mode, the cylinder side is fixed to the inclined reinforcing member via the cylinder side fixing piece, and the piston side is fixed via the piston side fixing piece. It is fixed to the horizontal reinforcing member.
(3) In a third aspect, the inclined reinforcing member is divided into one and the other, and the cylinder side is fixed to one of the inclined reinforcing members via a cylinder-side fixing piece, and the piston side is fixed to the piston side. It is fixed to the other of the inclined reinforcing members via a fixing piece.
(4) In a fourth aspect, the horizontal reinforcing member is divided into one and the other, and the cylinder side is fixed to one of the horizontal reinforcing members via a cylinder-side fixing piece, and the piston side is fixed to the piston side. It is fixed to the other horizontal reinforcing member via a fixing piece.

In other words, the damper device according to the first aspect of the present invention is a water tank in which the horizontal reinforcing member and the inclined reinforcing member are fixed inside the side wall, or the two divided inclined reinforcing members are fixed inside the side wall. or a damper device arranged in a water tank in which the horizontal reinforcing member divided into two is fixed to the inside of a side wall, the damper device comprising: a cylinder having a recess for containing a liquid formed therein; A piston body having an outer peripheral surface sliding on an inner peripheral surface to pressurize or depressurize the liquid in the recess, and a piston rod to which the tip of the piston body is fixed. , an opening through which liquid flows is formed between the recess and the water tank, and/or a gap is formed between the inner peripheral surface of the cylinder and the outer peripheral surface of the piston body, and The cylinder is formed with a cylinder-side fixing piece that is fixed to the horizontal reinforcing member, the inclined reinforcing member, or one of the two divided inclined reinforcing members or one of the two divided horizontal reinforcing members, The piston rod is formed with a piston-side fixed piece that is fixed to one end of the inclined reinforcing member, the horizontal reinforcing member, the other of the two-divided inclined reinforcing member, or the other of the two-divided horizontal reinforcing member. and when the horizontal reinforcing member and the inclined reinforcing member are pulled or compressed against each other, or when one of the inclined reinforcing members and the other of the inclined reinforcing members are pulled or compressed against each other, or the horizontal reinforcing member When one and the other of the members are pulled or compressed relative to each other, the liquid in the water tank flows into the recess through the opening or the gap, or the liquid in the recess flows into the opening or the gap. It is characterized by flowing out from the recess into the water tank via.

Further, in the case of the first aspect and the second aspect, when the horizontal reinforcing member and the inclined reinforcing member are mutually pulled or compressed, a The liquid flows in through the opening or the gap, or the liquid in the recess of the piston flows out from the recess to the outside (into the water tank) through the opening or the gap. Further, in the case of the third aspect, when one of the inclined reinforcing members and the other of the inclined reinforcing members are pulled or compressed by each other, the liquid in the water tank enters the concave portion of the piston. The liquid flows in through the opening or the gap, or the liquid in the recess of the piston flows out of the piston to the outside (inside the water tank) through the opening or the gap. Further, in the case of the fourth aspect, when one of the horizontal reinforcing members and the other of the horizontal reinforcing members are pulled or compressed with respect to each other, the liquid in the water tank enters the concave portion of the piston. The liquid flows in through the opening or the gap, or the liquid in the recess of the piston flows out of the piston to the outside (inside the water tank) through the opening or the gap. It should be noted that the opening may be formed in the piston body instead of being formed in the cylinder.

Therefore, in any of the above modes, when seismic motion acts on the water tank and tension or compression is applied between the horizontal reinforcing member and the inclined reinforcing member, or when one of the inclined reinforcing members and the other of the inclined reinforcing members are pulled or compressed relative to each other, or when one of the horizontal reinforcing members and the other of the horizontal reinforcing members are pulled or compressed relative to each other, they pass through the opening or the gap. The force can be effectively attenuated by the fluid resistance of the liquid that acts, and the damping performance can be exhibited. In particular, the damper device having such a configuration can be installed not only in a newly installed water tank but also in an existing water tank. In addition, since the damper device having such a configuration uses the liquid stored in the water tank, it is possible to realize cost reduction.

That is, according to the damper device according to the first aspect of the present invention, the rigidity of the side wall that has been used so far or, if the side wall is composed of a side panel, the thickness or material of the side panel itself is changed. It is not necessary to reinforce their composition by using a truss structure, or to increase the strength by increasing the thickness, material, or number of the horizontal reinforcing members and inclined reinforcing members themselves (components of the truss structure). Therefore, the construction cost of the entire water tank can be sufficiently suppressed.

Further, according to a second invention (invention of claim 2), in the first invention, the cylinder-side fixing piece is a portion fixed to the horizontal reinforcing member, and the cylinder has a A cylinder-side sliding contact piece is formed opposite to the side fixing piece, and the piston-side fixing piece is a portion to which one end side of the inclined reinforcing member is fixed. It is characterized by having a piston-side sliding contact piece that is in sliding contact with the piece.

The second invention relates to the first aspect of the first invention, and the cylinder is formed with a cylinder-side sliding contact piece facing the cylinder-side fixing piece, The piston-side fixed piece has a piston-side sliding contact piece that comes into sliding contact with the cylinder-side sliding contact piece. That is, the cylinder-side sliding contact piece and the piston-side sliding contact piece are in sliding contact with each other. Therefore, according to the damper device having such a configuration, when an earthquake occurs, the cylinder and the piston are always in a proper state due to the sliding contact between the cylinder side sliding contact piece and the piston side sliding contact piece. It is possible to ensure that the relative movement (linear stretching motion) is repeated at .

In a third invention (invention according to claim 3), in the second invention, a partition plate portion is formed in the cylinder to divide the concave portion into one concave portion and the other concave portion, The piston body includes one piston body housed in the one recess and the other piston body housed in the other recess, and the opening is the cylinder and is located in the one recess. and the water tank and the other piston body, or between the cylinder and the position where the other recess and the water tank communicate The cylinder-side fixing piece and the cylinder-side sliding contact piece are formed on both sides and face each other with the cylinder interposed therebetween, and the piston-side fixing piece is a portion to which the two inclined reinforcing members are fixed. The piston-side sliding contact piece is fixed to the one piston rod and the other piston rod.

In the damper device according to the third aspect of the invention, the recess is divided into one recess and the other recess by the partition plate portion of the cylinder. The opening is formed in the one concave portion. Further, the piston bodies are one piston body housed in the one recess and the other piston body housed in the other recess. Further, the opening is formed in both the position of the cylinder that communicates the inside of the one recess with the water tank and the other piston body, or the opening is formed in the other recess of the cylinder. and the water tank, and the one piston body. The cylinder-side fixing piece and the cylinder-side sliding contact piece are opposed to each other. , are fixed to the one piston rod and the other piston rod. Therefore, when the horizontal reinforcing member and the two inclined reinforcing members are relatively displaced due to seismic motion, the one piston body moves in the one recess, and the other piston body moves in the other recess. Each moves over the same distance, while the liquid in the one and the other recess is pressurized or decompressed.

Therefore, according to the damper device having such a configuration, not only can it be attached to the horizontal reinforcing member or the inclined reinforcing member in a stable state, but also even when seismic motion acts, the cylinder and the piston are more properly aligned. It can be ensured that the relative movement (linear telescopic motion) is repeated in the state.

Further, in a fourth invention (invention according to claim 4), in the third invention, the cylinder-side sliding contact piece and the piston-side sliding contact piece have long holes formed in a straight line, A shaft inserted into the elongated hole is relatively formed or fixed, and the cylinder provided with the cylinder-side sliding contact piece and the one and the other piston rods to which the piston-side sliding contact piece is fixed. is characterized in that the long holes are arranged such that their positions are mutually displaced along the length direction.

The damper device according to the fourth aspect of the present invention includes an elongated hole and a shaft inserted into the elongated hole, the elongated hole being formed in the cylinder side sliding contact piece, and the shaft being the piston side. It includes a mode in which it is fixed to the sliding contact piece, and a mode in which the long hole is formed in the piston-side sliding contact piece and the shaft is formed in the cylinder-side sliding contact piece. The cylinder provided with the cylinder-side sliding contact piece and the piston provided with the piston-side sliding contact piece are configured such that their positions are displaced relative to each other over the length of the elongated hole. In other words, the positions of the cylinder and the piston are not relatively displaced beyond the length of the long hole, and the relative movement of the cylinder and the piston is linearly guided by the long hole. done.

Therefore, according to the damper device according to the fourth aspect of the present invention, it is possible to ensure more stable linear motion due to seismic motion due to the elongated hole and the shaft.

In a fifth aspect of the invention (invention of claim 5), in the fourth aspect, a plurality of the long holes are provided in a direction perpendicular to the length direction of the cylinder with respect to the cylinder-side sliding contact piece. It is characterized in that a plurality of shafts are fixed to the piston-side sliding contact piece formed side by side and inserted into the plurality of elongated holes.

In the damper device according to the fifth aspect of the present invention, a plurality of the long holes are formed side by side in a direction orthogonal to the longitudinal direction of the horizontal reinforcing plate with respect to the cylinder-side sliding contact piece. , Since the above-mentioned shafts are inserted, these structures enable accurate positioning, and more stable linear movement (extension and contraction) between the cylinder and the piston body when seismic motion acts on the water tank. can be guaranteed.

In a sixth aspect of the invention (invention according to claim 6), in the first aspect, the cylinder-side fixing piece is a portion to which one of the two-divided inclined reinforcing member is fixed or the two-divided portion. A cylinder-side sliding contact piece extending in the direction of the piston rod is arranged on the cylinder-side fixed piece, and the piston-side fixed piece is a portion to which one of the two horizontal reinforcing members is fixed. It is a portion to which the other of the divided inclined reinforcing members is fixed or a portion to which the other of the two divided horizontal reinforcing members is fixed, and the piston-side fixed piece is in sliding contact with the cylinder-side sliding contact piece. A piston-side sliding contact piece is formed, and the cylinder-side sliding contact piece and the piston-side sliding contact piece are provided with a linear long hole and a shaft inserted through the long hole. The cylinder provided with the cylinder-side sliding contact piece and the piston body provided with the piston-side sliding contact piece are mutually formed or fixed so that their positions are mutually displaced along the length direction of the long hole. It is characterized by comprising:

The damper device according to the sixth invention relates to the second aspect and the third aspect described in the first invention, in which one of the inclined reinforcing members and the other of the inclined reinforcing members fixed between or between one of the angled reinforcing members and the other of the angled reinforcing members. An elongated hole and a shaft inserted through the elongated hole are formed or fixed relatively to the cylinder-side sliding contact piece and the piston-side sliding contact piece. The cylinder provided with the piece and the piston provided with the piston-side sliding contact piece are configured such that their positions are displaced relative to each other over the length of the elongated hole.

Therefore, even in the case of the sixth invention, as in the fourth invention, the long hole and the shaft can effectively attenuate the seismic motion, and the long hole and the shaft can With the body, a stable linear motion can be guaranteed.

In a seventh aspect of the invention (an invention according to claim 7), in the sixth aspect of the invention, the elongated hole has one elongated hole that sandwiches the piston rod with respect to the piston-side sliding contact piece and the other elongated hole that sandwiches the piston rod. The shafts are formed as holes, and the shafts are fixed to the cylinder-side sliding contact piece as one shaft inserted through the one elongated hole and the other shaft inserted through the other elongated hole. It is characterized by

In the damper device according to the seventh aspect of the invention, the elongated holes are composed of one elongated hole and the other elongated hole. The one and the other long holes are formed in the piston-side sliding contact piece, respectively, and are formed so as to sandwich the piston rod. In other words, the piston rod is located between the one elongated hole and the other elongated hole. Moreover, the said shaft is comprised from one shaft and the other shaft. The one and the other shafts are fixed to the cylinder-side sliding contact piece, respectively. is inserted through the other slot. Therefore, when the piston body moves relatively within the cylinder, the one and the other elongated holes and the one and the other shafts formed or fixed with the piston rod therebetween (left and right of the piston rod) on both sides) in a straight line.

Therefore, according to the damper device according to the seventh invention, as in the fifth invention, accurate positioning is achieved, and linear movement (extension/contraction) of the cylinder and the piston when seismic motion acts on the water tank. operation) can be guaranteed.

Further, in an eighth invention (an eighth invention), in the seventh invention, the base ends of the cylinder-side sliding contact pieces are fixed to one side of the cylinder-side fixed piece, and are mutually fixed to each other. First and second cylinder-side sliding contact pieces opposed to each other with a predetermined distance, and base ends of the first and second cylinder-side sliding pieces are fixed to the other side of the cylinder-side fixed piece, and opposed to each other with a predetermined distance. Third and fourth cylinder-side sliding contact pieces, the piston-side sliding contact piece being one of the piston-side sliding contact pieces positioned between the first cylinder-side sliding contact piece and the second cylinder-side sliding contact piece. and a piston-side sliding contact piece positioned between the third cylinder-side sliding contact piece and the fourth cylinder-side sliding contact piece. One elongated hole formed in the contact piece and the other elongated hole formed in the other piston-side sliding contact piece, and the shaft comprises the first cylinder-side sliding contact piece and the second cylinder. One of the shafts is fixed to the side sliding contact piece and is inserted through the one elongated hole, and the other is fixed to the third cylinder side sliding contact piece and the fourth cylinder side sliding contact piece. It is characterized by being the other shaft inserted through the long hole.

In the damper device according to the eighth aspect of the invention, the one shaft body is inserted through the one elongated hole, and the first cylinder-side sliding contact piece and the second cylinder-side sliding contact piece are connected to each other. and are fixed. The other shaft body is inserted through the other elongated hole, and is fixed to the third cylinder-side sliding contact piece and the fourth cylinder-side sliding contact piece. The first and second cylinder-side sliding contact pieces are opposed to each other with a predetermined distance therebetween, and the base ends of both are fixed to the cylinder-side fixed piece. The third and fourth cylinder-side sliding contact pieces are opposed to each other with a predetermined distance therebetween, and both of them are fixed to the cylinder-side fixed piece at their base ends. Since the one and the other elongated holes are formed in the piston-side sliding contact piece as described in the seventh aspect of the invention, the piston-side sliding contact piece is formed in the first cylinder. It is positioned between the side sliding contact piece and the second cylinder side sliding contact piece and between the third cylinder side sliding contact piece and the fourth cylinder side sliding contact piece.

Therefore, according to the damper device according to the eighth aspect of the invention, when the cylinder and the piston move relative to each other (when the expansion and contraction operations are repeated), the cylinder provided with the one and the other shafts Not only are they linearly guided by the elongated holes on one side and the other, but also when a seismic motion causes, for example, a force to bend the cylinder and the piston rod or to twist them (either Even if a force (such as rotating) is applied, it is possible to ensure that each other reliably repeats the linear expansion and contraction movement without being affected by such force.

A ninth invention (invention according to claim 9) relates to a damping water tank, characterized in that it comprises any one of the damper devices according to the first to eighth inventions. and

Even in the case of the damping water tank according to the ninth invention, the same effects as those of the damper devices according to the first to eighth inventions can be obtained.

A tenth invention (invention according to claim 10) is the damper device according to any one of claims 2 to 5 in the ninth invention, and one of the inclined reinforcing members and the The other of the inclined reinforcing members is welded to the lower surface of a horizontal fixing plate having a length in the same direction as the length of the horizontal reinforcing member. The horizontal reinforcing member is fixed to the piston-side fixing piece, which is fixed to the upper surface of the plate and constitutes the damper device.

In the tenth aspect of the invention, one of the inclined reinforcing members and the other of the inclined reinforcing members are welded to the lower surface of the horizontal fixing plate formed parallel to the longitudinal direction of the horizontal reinforcing member. This horizontal fixing plate has a length in the same direction as the length direction of the horizontal reinforcing member. The lower surface of the cylinder-side fixed piece that constitutes the damper device is fixed to the upper surface of the horizontal fixed plate, and the piston-side fixed piece that constitutes the damper device is fixed to the horizontal reinforcing member.

Therefore, in the vibration damping water tank according to the tenth aspect of the invention, one and the other of the inclined reinforcing members are mutually fixed to the horizontal fixing plate, and the damper device is arranged between the horizontal fixing plate and the horizontal reinforcing member. Therefore, even if seismic motion acts on the seismic damping water tank, the strength of the seismic damping water tank can be further increased, and the damper device effectively absorbs the seismic motion. can be attenuated to

According to the damper device according to the first invention (claim 1) or the seismic damping water tank according to the ninth invention (claim 9), seismic motion acts on the damping water tank. However, when the space between the horizontal reinforcing member and the inclined reinforcing member is pulled or compressed, or when the one inclined reinforcing member and the other inclined reinforcing member are pulled or compressed, the opening is closed. The force can be effectively attenuated by the fluid resistance of the liquid passing through, and effective damping performance can be exhibited. In particular, the damper device according to the present invention can be installed not only in a newly installed water tank but also in an existing water tank. In addition, since the damper device having such a configuration uses the liquid stored in the water tank, it is possible to realize cost reduction.

Further, according to the damper device according to the second invention (invention of claim 2) or the damping water tank according to the ninth invention (invention of claim 9), when an earthquake motion occurs, Due to the sliding contact between the cylinder-side sliding contact piece and the piston-side sliding contact piece, it is possible to ensure that the cylinder and the piston body repeat relative movement (linear expansion and contraction) in an appropriate state without fail. can.

Further, according to the damper device according to the third invention (claim 3) or the damping water tank according to the ninth invention (claim 9), the horizontal reinforcing member and the Not only can it be attached to an inclined reinforcing member, but even when seismic motion acts, it ensures that the cylinder and the piston body repeat relative movement (linear expansion and contraction) in a more appropriate state. be able to.

Further, according to the damper device according to the fourth invention (invention of claim 4) or the damping water tank according to the ninth invention (invention of claim 9), the cylinder and the piston main body Since the positions of the cylinder and the piston are not relatively displaced beyond the length of the long hole, and the cylinder and the piston move linearly while being guided by the long hole, the long hole and the shaft body As a result, it is possible to ensure more stable linear motion with seismic motion.

Further, according to the damper device according to the fifth invention (invention of claim 5) or the damping water tank according to the ninth invention (invention of claim 9), the longitudinal direction of the horizontal reinforcing plate and the are formed in a row in the direction perpendicular to each other, and each of the long holes is inserted with a shaft. can ensure linear movement (stretching motion).

Further, even in the case of the damper device according to the sixth invention (invention of claim 6) or the damping water tank according to the ninth invention (invention of claim 9), the above-mentioned fourth invention In the same way as in , the long hole and the shaft can ensure a more stable linear motion with seismic motion.

Further, according to the damper device according to the seventh invention (claim 7) or the damping water tank according to the ninth invention (claim 9), the same as the fifth invention. In addition, accurate positioning is achieved, and linear movement (extension and contraction) of the cylinder and piston can be ensured when seismic motion acts on the damping water reservoir.

Further, according to the damper device according to the eighth invention (invention of claim 8) or the damping water tank according to the ninth invention (invention of claim 9), the cylinder and the piston are relatively When moving to (repeatedly expanding and contracting), the cylinders provided with the one and the other shafts are not only linearly guided by the one and the other elongated holes, but also due to seismic motion, for example, Even if a force that bends the cylinder and the piston or a force that twists them (rotates one of them) acts, without being affected by such force, It is possible to ensure that each other reliably repeats the linear stretching motion.

Further, in the vibration damping water tank according to the tenth invention (invention of claim 10), one and the other of the inclined reinforcing members are mutually fixed to the horizontal fixing plate, and the damper device is fixed to the horizontal fixing plate. Since it is fixed between the plate and the horizontal reinforcing member, it is possible to further increase the strength of the vibration damping water tank even when seismic motion acts on the vibration damping water tank. The damper device can effectively attenuate the seismic motion.

It is a front view which shows typically a part of damping water tank to which the damper apparatus which concerns on 1st Embodiment was fixed. 1 is a perspective view showing a damper device according to a first embodiment; FIG. FIG. 3 is an exploded perspective view of the damper device shown in FIG. 2; It is a perspective view which shows the cross section of the damper apparatus shown in FIG. It is a front view which shows typically a part of damping water tank to which the damper apparatus which concerns on 2nd Embodiment was fixed. It is a perspective view showing a damper device according to a second embodiment. FIG. 7 is an exploded perspective view showing the damper device shown in FIG. 6; It is a perspective view which shows the cross section of the damper apparatus shown in FIG.

DETAILED DESCRIPTION OF THE INVENTION A damper device according to the present invention and a damping water tank provided with this damper device will be described in detail below with reference to the drawings. First, a damper device according to the first embodiment and a damping water tank provided with this damper device will be described.

The vibration damping water tank according to the first embodiment accommodates a liquid such as drinking water inside, and has a bottom plate (not shown) and a bottom plate fixed to the end of the bottom plate or in the vicinity thereof. A side plate and a top plate are the basic components. The outer shape of the water tank as a whole is formed in a cubic or rectangular parallelepiped shape. Therefore, the side wall is composed of four side walls, and each side wall is formed by welding a plurality of side panels in the horizontal direction and the vertical direction. there is FIG. 1 schematically shows the main part of the vibration damping water tank 1 according to such a basic configuration. A truss-like reinforcing member with inclined reinforcing members 3, 4 (one and the other) is fixed. One end of the horizontal reinforcing member 2 is welded to a bent plate 5a formed at the end of each side panel 5 forming the side wall, and the other end is a side panel forming the side wall facing the side wall. 5 is fixed to a bent plate 5a. The horizontal reinforcing member 2 may be fixed parallel to the inner surface of the side panel 5 . In any case, the horizontal reinforcing member 2 is one of reinforcing members horizontally fixed to reinforce the damping water tank 1 . The one and the other inclined reinforcing members 3 and 4 are inclined with respect to the longitudinal direction of the horizontal reinforcing member 2. In this example, the base end of the one inclined reinforcing member 3 is Welded between the lower end of the bent plate 5a formed vertically on the side panel 5 and the left end of the horizontal reinforcing member 2 formed below the horizontal reinforcing member 2, and the other inclined reinforcing member The base end of 4 is welded between the lower end of a bent plate 5a formed parallel to the vertically formed bent plate 5a and the right end of the horizontal reinforcing member 2. As shown in FIG.

A damper device 11 according to the first embodiment is fixed between the horizontal reinforcing member 2 and the one and the other inclined reinforcing members 3 and 4 (horizontal fixing plates 7 to which the horizontal fixing plates 7 are fixed). ing. That is, the damper device 11 according to the first embodiment relates to the second aspect among the four aspects described above. The damper device 11 according to the first embodiment will be described in detail below.

This damper device 11 is made of iron or stainless steel, and as shown in FIGS. A piece 13 and a cylinder-side sliding contact piece 14 fixed above the cylinder 12 are provided. The cylinder 12 has a length in the longitudinal direction of the horizontal reinforcing member 2, and as shown in FIG. is fixed, and a concave portion 12a (left side in FIG. 4) and a concave portion 12b (right side in FIG. 4) are formed with the first partition plate portion 15 as a boundary. In the damper device 11 according to this embodiment, a second partition plate portion 16 facing the first partition plate portion 15 and formed in a disc shape is provided in the one concave portion 12a. formed. A diameter-reduced portion 12c having a diameter slightly smaller than the inner diameter of the cylinder 12 is formed on one end side of the cylinder 12 from the position where the second partition plate portion 16 is formed, and On the inner circumference of the cylinder 12 and slightly on the other end side of the formation position of the first partition plate portion 15, the other reduced diameter portion 12d having a diameter slightly reduced from the inner diameter of the cylinder 12 is formed. ing.

A plurality (four) of circulation holes 16a are formed in the second partition plate portion 16. As shown in FIG. Further, the cylinder 12 is formed with a plurality of (two) openings 12e communicating with the space formed between the first partition plate portion 15 and the second partition plate portion 16. As shown in FIG. Therefore, when the liquid that has flowed into the left side of the position where the second partition plate portion 16 is formed in the one recess 12a in FIG. It flows into the space formed between the second partition plate portion 16 and the first partition plate portion 15 through the circulation hole 16a formed in the second partition plate portion 16, and the opening described above. When the pressure inside the one recess 12a is reduced by the one piston body 25, the liquid stored in the damping water tank 1 flows through the opening 12e. flows into the one recess 12a.

As shown in FIG. 1, the cylinder-side fixing piece 13 is formed by fixing the upper surface of a horizontal fixing plate 7 to which one end of each of the one inclined reinforcing member 3 and the other inclined reinforcing member 4 is fixed. As shown in FIG. 2 or 3, it is fixed to the tips of lower fixing plate portions 18 and 19 whose base ends are welded to the outer circumference of the cylinder 12, and the overall shape is It is molded in a rectangular shape. As shown in FIG. 1, the horizontal fixing plate 7 is formed in a rectangular shape and fixed parallel to the horizontal reinforcing member 2. As shown in FIG. The cylinder-side fixing piece 13 has a length in the longitudinal direction of the cylinder 12 and has substantially the same length as the cylinder 12, and is attached to the upper surface of the horizontal fixing plate 7 by bolts and nuts (not shown). , and bolt insertion holes 13a through which the shaft portions of the bolts are inserted are formed at both ends. The cylinder-side sliding contact piece 14 faces the cylinder-side fixed piece 13 with the cylinder 12 interposed therebetween, and is molded in the same shape as the cylinder-side fixed piece 13 . , are fixed to the cylinder 12 by upper fixing plate portions 21 and 22 . Two (one and the other) elongated holes 14a are formed in the cylinder-side sliding contact piece 14. As shown in FIG. These one and other elongated holes 14a each have a length in the longitudinal direction of the cylinder-side sliding contact piece 14 and are formed parallel to each other. One side of the cylinder-side sliding contact piece 14 is formed, and the other long hole (not shown) is formed on the other side of the cylinder-side sliding contact piece 14 .

As shown in FIG. 4, the cylinder 12 accommodates a disk-shaped piston body 25 and a piston body 26, respectively. As shown in FIG. 4, the one piston body 25 is inserted from one end side of the cylinder 12 and accommodated in the one recess 12a. is inserted from the other end side and accommodated in the other concave portion 12b. Endless concave portions 25a and 26a are formed in an annular shape on the outer peripheral surfaces of the one and the other piston bodies 25 and 26, respectively. Abutting piston rings 27, 28 are mounted. Further, the other piston main body 26 is formed with a plurality (four) of openings 26b that communicate the inside of the other concave portion 12b with the outside (within the damping water tank 1). A tip end of one piston rod 29 is fixed to the back surface of the one piston body 25 , and a tip end of the other piston rod 30 is fixed to the back surface of the other piston body 26 . These one and the other piston rods 29.30 are cylindrically shaped.

One fixing member 31 is fixed to the one piston rod 29 , and the other fixing member 32 is fixed to the other piston rod 30 . These one and other fixing members 31 and 32 are fixed to a piston-side sliding contact piece 33 formed in a rectangular shape. The one fixed member 31 has two fixed plate portions 31a, 31a which are welded to the one piston rod 29 at their ends and face each other, and the base ends of the fixed plate portions 31a, 31a are welded. A plurality of bolt shafts (not shown) are inserted through the base plate portion 31b for fixing the base plate portion 32b to the piston-side sliding contact piece 33. are formed with bolt insertion holes. The other fixed member 32 includes two fixed plate portions 32a, 32a which are welded to the other piston rod 30 at their ends and face each other, and the base ends of these fixed plate portions 32a, 32a are welded. A base plate portion 32b is formed into a rectangular shape, and a bolt shaft (not shown) is inserted through the base plate portion 32b to fix the base plate portion 32b to the piston-side sliding contact piece 33. A plurality of bolt insertion holes (reference numerals are omitted) are formed. The lower surface of the piston-side sliding contact piece 33 is in sliding contact with the upper surface of the cylinder-side sliding contact piece 14, and one end side of the piston-side sliding contact piece 33 is provided with a base plate portion 31b that constitutes the one fixing member 31. A bolt insertion hole (not shown) through which a bolt shaft for fixing the piston-side sliding contact piece 33 is inserted is formed. A bolt insertion hole (reference numeral is omitted) is formed through which a bolt shaft for fixing the piece 33 is inserted. Further, one shaft body insertion hole 33a is formed at the center and one side of the piston-side sliding contact piece 33, and the other side is formed at the center and the other side of the piston-side sliding contact piece 33. is formed with a shaft body insertion hole 33b. The cylinder-side sliding contact piece 14 and the piston-side sliding contact piece 33 are connected by two connecting members (loose joints) 36 and 37 whose total length can be changed. These connection members (loose joints) 36, 37 are, as shown in FIG. Disk portions 36c and 37c formed to have a diameter longer than the width of the elongated hole 14a, and one screw (reference numeral omitted) is screwed on the outer circumference of the disk portions 36c and 37c, which hang down from the centers of the disk portions 36c and 37c. The other couplers 36b and 37b are composed of engraved rotary shafts 36d and 37d, and the other connecting members 36b and 37b are composed of disk portions 36e and 37e formed in the same shape as the disk portions 36c and 37c, and the disk portion 36e. , 37e, and cylindrical portions 36f and 37f, which hang down from the center of the cylindrical portions 36f and 37e and have the other screw (not shown) screwed on the inner peripheral surface thereof. The cylindrical portions 36f and 37f are the shafts constituting the present invention or one or the other of the shafts.

2 or 3, a piston-side fixed piece 39 whose base end is welded to the piston-side sliding contact piece 33 is erected on one side of the piston-side sliding contact piece 33. As shown in FIG. The piston-side fixing piece 39 is formed in a rectangular shape, and as shown in FIG. 1, is a portion that is welded to the horizontal reinforcing member 2 (or fastened with a bolt and nut (not shown)).

Hereinafter, the operation when seismic motion acts on the damping water tank 1 to which the damper device 11 according to the first embodiment is fixed will be described. First, the damper device 11 is fixed in the damping water tank 1 as described above, and in the state shown in FIG. 2 or FIG. The liquid in the damping water tank 1 is contained. That is, the liquid in the damping water tank 1 flows into the one recess 12a through the plurality of openings 12e. The fluid flows between the second partition plate portion 16 and the one piston main body 25 through a plurality of circulation holes 16a. Further, a plurality of openings 26b formed in the other piston body 26 are provided between the first partition plate portion 15 and the other piston body 26 within the other recess 12b. Then, the liquid in the damping water tank 1 is introduced.

In such a state, when an earthquake occurs in the damping water tank 1 and a force acts to relatively move the horizontal reinforcing member 2 or the inclined reinforcing members 3 and 4 shown in FIG. For example, when the piston-side sliding contact piece 33 moves rightward in FIG. 16 and one piston body 25 (liquid in one recess 12a) is pressurized, passes through the plurality of circulation holes 16a, and flows between the second partition plate portion 16 and the first partition plate. 15, and passes through a plurality of openings 12e formed in the cylinder 12 to be released to the outside (inside the damping water tank 1). Further, when the other piston body 26 moves to the right along with the movement of the one piston body 25, the pressure is reduced between the other piston body 26 and the first partition plate portion 15 (inside the other recessed portion 12b). Therefore, the liquid in the damping water tank 1 passes through the plurality of openings 26b formed in the other piston body 26, and the liquid in the damping water tank 1 flows.

In the process of moving the one and the other piston bodies 25 and 26, the lower surface of the cylinder-side sliding contact piece 14 and the upper surface of the piston-side sliding contact piece 33 are in sliding contact with each other, and the cylinder-side sliding contact The piece 14 and the piston-side sliding contact piece 33 are configured such that the cylindrical portion 36f, which is one of the shaft bodies, is formed by the one long hole 14a, and the cylindrical portion 36f, which is the other shaft body, is formed by the other long hole (not shown). The shaft 37f is guided linearly. Therefore, according to the damper device according to the first embodiment described above, even when a relatively biased force acts on the horizontal reinforcing member and the inclined reinforcing member due to the seismic motion, the above configuration Such biased force is converted into linear motion, ensuring that the cylindrical body (cylinder) 12 and the one and the other piston bodies 25 and 26 move in a relative straight line without fail, and stable vibration damping action. can be realized.

Next, a damper device 51 according to a second embodiment of the invention will be described in detail. This damper device 51 , as shown in FIG. It is fixed between the member 3a, 4a and the other inclined reinforcing member 3b, 4b. That is, the damper device 51 according to the second embodiment relates to the third aspect among the four aspects described above.

This damper device 51 is made of iron or stainless steel, and as shown in FIGS. It is provided with a piece 53 , a piston body 54 housed in the cylinder 52 , and a piston rod 55 whose tip is fixed to the piston body 54 . As shown in FIG. 8, the cylinder 52 is formed into a cylindrical shape, and a disk-shaped closing plate portion 56 is welded to the tip. That is, the inside of the cylinder 52 whose tip is closed by the closing plate portion 56 is a concave portion 52a. A plurality of (two) openings 52b are formed on the closing plate portion 56 side of the cylinder 52 so as to communicate the concave portion 52a with the outside (within the damping water tank 1). The cylinder-side fixing piece 53 is a portion to which the ends of the other inclined reinforcing members 3b and 4b are fastened by bolts and nuts (not shown), and is shaped like a flat plate as shown in FIG. one extending plate portion 53b extending from one side of one end of the fixing plate portion 53a; and the other (not shown) extending from the other side of one end of the fixing plate portion 53a. It is composed of an extension plate portion. In other words, the cylinder-side fixing piece 53 is formed by forming a U-shaped notch having the same length as the outer diameter of the cylinder 52 at one end of a rectangular plate 53a. , and the portion sandwiching the notch is the one extension plate portion 53b and the other extension plate portion (not shown). The distal end of the fixed plate portion 53a is welded to the outer surface of the closing plate portion 56, and the side portions of the one and the other extended plate portions 53b facing each other are welded to the outer peripheral surface of the cylinder 52. It is The lengths of the one and the other extending plate portions 53b are shorter than the overall length of the cylindrical body 53. As shown in FIG. A plurality (four) of bolt insertion holes 53d through which the shafts of the bolts (not shown) are inserted are formed in the fixing plate portion 53a.

Further, the base end side of the first cylinder-side sliding contact piece 57 is fixed to the upper surface of the one extending plate portion 53b, and the first cylinder-side sliding contact piece 57 is fixed to the lower surface of the one extending plate portion 53b. A base end side of a second cylinder-side sliding contact piece 58 that faces the sliding contact piece 57 is fixed. These first and second cylinder-side sliding contact pieces 57 and 58 have the same width as the width of the one extension plate portion 53b, and their tips are wider than the tip of the cylinder 52. It extends to the proximal end side of the piston rod 55 . Base ends of the first and second cylinder-side sliding contact pieces 57 and 58 are fixed to the fixed plate portion 53a by the connecting member 36 described above, and the first and second cylinder side sliding contact pieces 57 and 58 are fixed to the fixed plate portion 53a. The front end sides of the side sliding contact pieces 57 and 58 are connected to each other by the connecting member 36 described above while maintaining the same distance as the thickness of the one extending plate portion 53b (separated). The base end side of the third cylinder-side sliding contact piece 59 is fixed to the front surface of the other extending plate portion, and the third cylinder-side sliding contact piece 59 is fixed to the lower surface of the other extending plate portion. The base end side of the fourth cylinder-side sliding contact piece 60 facing the piece 59 is fixed. These third and fourth cylinder-side sliding contact pieces 59 and 60 have the same width as the width of the other extension plate portion, and their respective tips extend further toward the piston than the tip of the cylinder 52 . It extends to the base end side of the rod 55 . Base ends of the third and fourth cylinder-side sliding contact pieces 59 and 60 are fixed to the fixing plate portion 53a by the connecting member 37 described above, and the third and fourth cylinder-side sliding contact pieces 59 and 60 are fixed to the fixing plate portion 53a. The distal end sides of the pieces 59 and 60 are fixed (separated) from each other by the previously described connecting member 37 at the same distance as the wall thickness of the other extension plate portion.

As shown in FIG. 7 or FIG. 8, the piston body 54 is formed into a columnar shape, and two endless concave portions 54a are formed in an annular shape and parallel to each other on the outer peripheral surface of the piston body 54. Piston rings 65 are mounted in the endless recesses 54a, the outer circumferences of which are in sliding contact with the inner circumference of the cylinder 52. As shown in FIG. The tip of the piston rod 55 is welded to the center of the back surface of the piston body 54 , and a piston-side fixing piece 66 is welded to the piston rod 54 . The width of the piston-side fixed piece 66 is the same as the width of the cylinder-side fixed piece 53 . The piston-side fixing piece 66 is a portion to which the tip end of the one inclined reinforcing member 3 is fastened by a bolt and nut (not shown). 66a, one extending plate portion 66b extending from one end of the fixed plate portion 66a toward the cylinder 52, and the other extending portion extending from the other side of one end of the fixed plate portion 66a. It is composed of a projecting plate portion 66c. In other words, the piston-side fixing piece 66 has a U-shaped notch having a length substantially equal to the outer diameter of the cylinder rod 55 at one end of a rectangular plate 66a. The portions sandwiching the notch portion are the one extension plate portion 66b and the other extension plate portion 66c.

One elongated hole 66d is formed in the one extending plate portion 66b, and the other elongated hole 66e (see FIG. 7) is formed in the other extending plate portion 66c. These one and other long holes 66d and 66e have lengths in the same direction as the length directions of the piston rod 55 and the cylinder 52 (parallel to each other). As shown in FIG. 6, the cylindrical portion 36f as one of the shafts constituting the present invention is inserted into the one elongated hole 66d, and the other elongated hole 66e is provided with the present invention. A cylindrical portion 37f as the other shaft body is inserted. Therefore, part of the one extending plate portion 66b is disposed between the first cylinder-side sliding contact piece 57 and the second cylinder-side sliding contact piece 58, as shown in FIG. A portion of the upper surface of the one extending plate portion 66b is a portion that comes into sliding contact with the lower surface of the first cylinder-side sliding contact piece 57, and a portion of the lower surface of the one extending plate portion 66b. A portion is a portion that comes into sliding contact with the upper surface of the second cylinder-side sliding contact piece 58 . A part of the other extending plate portion 66c is disposed between the third cylinder-side sliding contact piece 59 and the fourth cylinder-side sliding contact piece 60, as shown in FIG. A portion of the upper surface of the other extending plate portion 66c is a portion that comes into sliding contact with the lower surface of the third cylinder-side sliding contact piece 59, and a portion of the lower surface of the other extending plate portion 66c. A portion is a portion that comes into sliding contact with the upper surface of the fourth cylinder-side sliding contact piece 60 . Therefore, the one and the other extending plate portions 66b and 66c are piston-side sliding contact pieces constituting the present invention, respectively. The fixed plate portion 66 has a plurality of (four) insertion holes 66f through which bolt shafts of bolts (not shown) for fixing the fixed plate portion 66 and the tip end side of the one inclined reinforcing member 3a are inserted. formed.

The operation when seismic motion acts on the damping water tank 1 to which the damper device 51 according to the second embodiment is fixed will be described below. First, the damper device 51 is fixed in the damping water tank 1 as described above, and in the state shown in FIG. 6 or FIG. The liquid in the damping water tank 1 is contained. That is, in the space between the piston main body 54 and the closing plate portion 56 in the recess 52a formed in the cylinder 52, the oil in the damping water tank 1 passes through the plurality of openings 52b. Liquid is flowing. In such a state, when an earthquake occurs in the damping water tank 1 and a force is applied to move one or the other of the inclined reinforcing members 3 and 4 shown in FIG. 8, when the piston body 54 approaches the closing plate portion 56, the liquid that has been contained in the concave portion 52a until then is pressurized, passes through the opening 52b, and flows out of the cylinder 52. When the piston body 54 is released to the outside and the piston body 54 is separated from the closing plate portion 56, the pressure in the recess 52a is reduced until then, and the liquid in the vibration damping water tank 1 passes through the opening 52b to the cylinder. 52 (recess 52a).

In the process of moving the piston body 54, the upper surface of the one extending plate portion 66b is in sliding contact with the lower surface of the first cylinder-side sliding contact piece 57, and the one extending plate portion 66b The lower surface is in sliding contact with the upper surface of the second cylinder-side sliding contact piece 58 . The upper surface of the other extending plate portion 66c is in sliding contact with the lower surface of the third cylinder side sliding contact piece 59, and the lower surface of the other extending plate portion 66c is in sliding contact with the fourth cylinder side sliding contact piece. It is in sliding contact with the upper surface of the piece 60 . At the same time, the cylindrical portion 36f as one shaft fixed to the first cylinder-side sliding contact piece 57 and the second cylinder-side sliding contact piece 58 is linearly connected to the one elongated hole 66d. The cylindrical portion 37f as the other shaft body guided by the third cylinder-side sliding contact piece 59 and the fourth cylinder-side sliding contact piece 60 and fixed to the third cylinder-side sliding contact piece 59 and the fourth cylinder-side sliding contact piece 60 is linearly aligned with the other long hole 66e. guided by the shape. Therefore, even in the case of the damper device according to the second embodiment described above, even if a relatively biased force acts on the one and the other inclined reinforcing members 3 and 4 due to the seismic motion. Even so, the above configuration converts such biased force into linear motion, ensuring that the cylinder 52 and the piston body 54 always move in a relative straight line, thereby realizing a stable vibration damping operation. can be done.

Although the damper device 51 according to the second embodiment is related to the third aspect described above, as described as the fourth aspect, the horizontal reinforcing member 2 is divided into two parts. The cylinder-side fixed piece 53 or the piston-side fixed piece 66 is fixed to one of the two divided horizontal reinforcing members 2 (not shown), and the other horizontal reinforcing member is fixed to the piston-side fixed piece 66 or the cylinder. The side fixing piece 53 may be fixed.

Further, in the damper device 11 according to the first embodiment described above, the cylinder-side fixed piece 13 is fixed to the horizontal reinforcing member 2 and the piston The side fixing piece 39 may be fixed to one end of the one and the other inclined reinforcing members 3 and 4 .

Further, in the damper device 11 according to the first embodiment described above, the inside of the cylinder 12 is partitioned by the first partition plate portion 15, and the inside of the cylinder 12 is divided by the first partition plate portion 15. The one recessed portion 12a and the other recessed portion 12b are partitioned, and the interior of the one recessed portion 12a is further partitioned by the second partition plate portion 16. However, the present invention also includes the second partition. There is no need for the plate portion 16 to be provided. For example, by dividing the inside of the cylinder 12 into two equal parts by a partition plate portion (not shown), one concave portion and the other concave portion are formed. While forming one opening that communicates with the outside of the cylinder 12, at the position where the other recess is formed, another opening that communicates the inside of the other recess and the outside of the cylinder 12 is formed. Due to the relative movement of the piston main body 25 or the cylinder 12, the liquid in the one recess passes through the one opening and flows into or out of the recess, and is stored in the other recess. Alternatively, relative movement of the other piston body 26 or cylinder 12 may cause the liquid in the other recess to pass through the other opening to flow into the interior or flow out to the exterior.

Furthermore, in the damper device 11 according to the first embodiment, the one and the other recesses 12a and 12b are formed in the cylinder 12, and the one and the other recesses 12a and 12b are respectively (one or The present invention closes one end of the cylinder 12 and forms a single recess within the cylinder 12, within which the piston body 25, 26 is arranged. By arranging the body and forming an opening in the cylinder 12 or the piston body, the inside of the recess and the outside of the cylinder 12 may communicate with each other.

Further, in the vibration damping water tank 1 according to the first embodiment, the single damper device 11 is arranged and described as an example. The damper device 11 may be fixed to each of a plurality of horizontal reinforcing members 2 , or the damper device 51 according to the second embodiment may be fixed to a plurality of inclined reinforcements fixed to the damping water tank 1 . They may be fixed to the members 3 and 4, respectively. Also, both the damper device 11 according to the first embodiment and the damper device 51 according to the second embodiment may be fixed. However, when the damper devices 11 and 51 are attached to the plurality of horizontal reinforcing members 2 and/or the plurality of inclined reinforcing members 3 and 4 in this way, the liquid stored in the damping water tank 1 always exists. A fixed height (a position below the range of varying liquid levels) is preferred.

In the first embodiment, the cylinder 12 is formed with a plurality of (two) openings 12e. Conversely, when the pressure inside the one recess 12a is reduced by the one piston body 25, the liquid stored in the damping water tank 1 flows out of the opening 12e. In the present invention, instead of the opening 12e or together with the opening 12e, the inner peripheral surface of the cylinder 12, the one piston body 25, and the other piston have been described. Predetermined gaps are provided between the respective outer peripheral surfaces of the main body 26, and the liquid that flows out of the cylinder 12 through these gaps, and conversely, the liquid contained in the damping water tank 1 may flow into the recess 12a. When a predetermined gap is provided between the inner diameter of the cylinder 12 and the outer diameter of each of the piston body 25 and the piston body 26, the piston rings 27 and 28 described above are required. Therefore, the number of parts of the damper device 11 can be reduced, and the manufacturing cost can be reduced.

1 Damping water tank 2 Horizontal reinforcing member 3 One inclined reinforcing member 4 The other inclined reinforcing member 7 Horizontal fixing plate 11 Damper device 12 Cylindrical body (cylinder)
12a One concave portion 12b The other concave portion 12e Flow hole 13 Cylinder side fixing piece 14 Cylinder side sliding contact piece 14a One long hole 15 First partition plate portion 16 Second partition plate portion 16a Opening 25 One piston main body 26 The other Piston main body 26b Opening 29 One piston rod 30 The other piston rod 33 Piston side sliding contact piece 36f Cylindrical portion 37f Cylindrical portion 39 Piston side fixed piece 51 Damper device 52 Cylindrical body (cylinder)
52a recessed portion 52b opening 53 cylinder-side fixed piece 53b one extending plate portion 54 piston body 55 piston rod 57 first cylinder-side sliding contact piece 58 second cylinder-side sliding contact piece 59 third cylinder-side sliding contact piece 60 Fourth cylinder-side sliding contact piece 66 Piston-side fixed piece 66b One extending plate portion 66c The other extending plate portion 66d One elongated hole 66e The other elongated hole

Claims (10)

A damper device arranged in a water tank in which a horizontal reinforcing member and an inclined reinforcing member are fixed to the inside of a side wall,
A cylinder in which a recess for containing a liquid is formed, a piston body whose outer peripheral surface slides on the inner peripheral surface of the recess to pressurize or depressurize the liquid in the recess, and a tip fixed to the piston body. a piston rod;
Either the cylinder or the piston body has an opening through which liquid flows between the recess and the water tank, and/or between the inner peripheral surface of the cylinder and the outer peripheral surface of the piston body. A gap is formed in the
The above cylinder has
a cylinder-side fixing piece fixed to the horizontal reinforcing member;
or a cylinder-side fixed piece fixed to the inclined reinforcing member;
Or one of the two divided inclined reinforcing members ,
Alternatively, a cylinder-side fixing piece fixed to one of the two divided horizontal reinforcing members is formed,
The above piston rod has
a piston-side fixed piece fixed to the inclined reinforcing member when the cylinder-side fixed piece is fixed to the horizontal reinforcing member ;
or a piston-side fixed piece fixed to the horizontal reinforcing member when the cylinder-side fixed piece is fixed to the inclined reinforcing member ;
or a piston-side fixed piece fixed to the other of the two divided inclined reinforcing members,
Alternatively, a piston-side fixing piece fixed to the other of the two divided horizontal reinforcing members is formed,
When the horizontal reinforcing member and the inclined reinforcing member are pulled or compressed together ,
or when one of the angled reinforcing members and the other of the angled reinforcing members are pulled or compressed relative to each other ,
Or when one and the other of the two divided horizontal reinforcing members are pulled or compressed against each other,
The liquid in the water tank flows into the recess through the opening or the gap, or the liquid in the recess flows out from the recess into the water tank through the opening or the gap. damper device. The cylinder-side fixed piece is a portion fixed to the horizontal reinforcing member or the inclined reinforcing member, and the cylinder is formed with a cylinder-side sliding contact piece facing the cylinder-side fixed piece,
The piston-side fixed piece is a portion to which the one end side of the inclined reinforcing member or the horizontal reinforcing member is fixed, and the piston-side fixed piece has a piston-side sliding contact piece that is in sliding contact with the cylinder-side sliding contact piece. 2. The damper device according to claim 1, comprising: A partition plate portion is formed in the cylinder to divide the recess into one recess and the other recess,
The piston body includes one piston body housed in the one recess and the other piston body housed in the other recess,
The opening is formed both in the cylinder at a position where the inside of the one recess and the water tank are communicated and in the other piston body, or in the cylinder and at a position where the inside of the other recess and the water storage tank are communicated. Formed at both the position communicating with the tank and the one piston body,
The cylinder-side fixed piece and the cylinder-side sliding contact piece face each other with the cylinder interposed therebetween,
The piston-side fixing piece is a portion to which the two inclined reinforcing members are fixed,
3. A damper device according to claim 2, wherein said piston-side sliding contact piece is fixed to said one piston rod and said other piston rod. The cylinder-side sliding contact piece and the piston-side sliding contact piece are relatively formed or fixed with a linear elongated hole and a shaft inserted through the elongated hole,
The cylinder provided with the cylinder-side sliding contact piece and the one and the other piston rods to which the piston-side sliding contact piece is fixed are configured such that their positions are mutually displaced over the length direction of the elongated hole. 4. The damper device according to claim 3, wherein the damper device is formed by a plurality of the long holes are formed side by side in a direction perpendicular to the length direction of the cylinder with respect to the cylinder-side sliding contact piece,
5. A damper device according to claim 4, wherein a plurality of shafts inserted through said plurality of long holes are fixed to said piston-side sliding contact piece. The cylinder-side fixing piece is a portion to which one of the halves of the inclined reinforcing member is fixed or a portion to which one of the halves of the horizontal reinforcing member is fixed, and the cylinder-side fixing piece includes: A cylinder-side sliding contact piece extending in the direction of the piston rod is arranged,
The piston-side fixing piece is a portion to which the other of the halves of the inclined reinforcing member is fixed or a portion to which the other of the halves of the horizontal reinforcing member is fixed, and the piston-side fixing piece includes: A piston-side sliding contact piece is formed in sliding contact with the cylinder-side sliding contact piece,
The cylinder-side sliding contact piece and the piston-side sliding contact piece are relatively formed or fixed with a linear elongated hole and a shaft inserted through the elongated hole,
The cylinder provided with the cylinder-side sliding contact piece and the piston body provided with the piston-side sliding contact piece are configured such that their positions are displaced relative to each other along the length direction of the elongated hole. The damper device according to claim 1, wherein: The long holes are formed as one long hole and the other long hole sandwiching the piston rod with respect to the piston-side sliding contact piece,
The shaft body is fixed to the cylinder-side sliding contact piece as one shaft body inserted through the one elongated hole and the other shaft body inserted through the other elongated hole. A damper device according to claim 6. Each of the cylinder-side sliding contact pieces has a base end fixed to one side of the cylinder-side fixed piece, and includes first and second cylinder-side sliding contact pieces facing each other with a predetermined distance therebetween. base ends of are fixed to the other side of the cylinder-side fixed piece, and are third and fourth cylinder-side sliding contact pieces that are opposed to each other with a predetermined distance therebetween,
The piston-side sliding contact piece includes one piston-side sliding contact piece positioned between the first cylinder-side sliding contact piece and the second cylinder-side sliding contact piece, and the third cylinder-side sliding contact piece. is the other piston-side sliding contact piece located between and the fourth cylinder-side sliding contact piece,
The elongated holes are one elongated hole formed in the one piston-side sliding contact piece and the other elongated hole formed in the other piston-side sliding contact piece,
The shaft body is fixed to the first cylinder-side sliding contact piece and the second cylinder-side sliding contact piece, and is inserted through one of the elongated holes. 8. The damper device according to claim 7, wherein the other shaft body is fixed to the contact piece and the fourth cylinder-side sliding contact piece and is inserted through the other elongated hole. A damping water tank comprising the damper device according to any one of claims 1 to 8. Equipped with the damper device according to any one of claims 2 to 5,
one of the inclined reinforcing members and the other of the inclined reinforcing members are welded to the lower surface of a horizontal fixing plate having a length in the same direction as the length direction of the horizontal reinforcing member;
The lower surface of the cylinder-side fixing piece that constitutes the damper device is fixed to the upper surface of the horizontal fixing plate, and
10. The damping water tank according to claim 9, wherein said piston-side fixing piece constituting said damper device is fixed to said horizontal reinforcing member.

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