JP2000045618A - Suspended structure of aseismatic movable wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly move a movable wall body of a suspended structure of the aseismatic movable wall without raising noise when the movable wall body is moved or when there is an earthquake. SOLUTION: A second suspended member 4 including a male threaded part 17 on its lower part is suspendedly provided on a suspended wheel traveling along a rail arranged on the upper part of a movable wall body 1. A shaft member 6 is rotatably pivoted by centering the vertical shaft center L. A male threaded part 14 on the shaft member 6 is screwed on a first screw hole 12 on a rotation member 7. The male threaded part 17 on the lower end of the second suspended member 4 is screwed on a second screw hole 13 on the rotation member 7 and the shaft center M of the second suspended member 4 is made eccentric with respect to the vertical shaft center L by 3 specific eccentric dimension ε. A duplex type thrust bearing 15 having spheres arranged vertically in two stages is intervened between a framework body 9 of the movable wall body 1 and the rotation member 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earthquake-resistant moving wall suspension structure.

[0002]

2. Description of the Related Art Conventionally, as an earthquake-resistant moving wall for partitioning an exhibition hall, a convention, a museum, etc., for example, FIG.
As shown in the figure, the suspension members d, d are suspended from two suspension vehicles c, c running along the rails b, b disposed on the ceiling a, and the lower end of one suspension member d is moved. It has been known that the lower end of the other suspension member d is fixed to the wall main body e, and the lower end of the other suspension member d is horizontally movable in the length direction of the moving wall via wheels f.

[0003]

However, in the conventional earthquake-resistant moving wall as described above, when the moving wall main body e is moved or in the event of an earthquake, the wheels f are slightly moved inside the moving wall main body e. There is a problem that loud noises occur when moving. Moreover, the structure for mounting the wheels f... Horizontally and freely inside the moving wall main body e is complicated, and it is difficult to assemble and construct.

Accordingly, the present invention solves the above-mentioned problems, and does not generate abnormal noise when the moving wall body is moved or in the event of an earthquake, so that the moving wall body can be moved smoothly, and assembly and construction can be performed. It is an object of the present invention to provide a simple earthquake-resistant moving wall suspension structure.

[0005]

In order to achieve the above-mentioned object, an earthquake-resistant moving wall suspension structure according to the present invention comprises two hanging vehicles that travel along a rail disposed above a moving wall main body. A first suspending member and a second suspending member having a male thread portion at a lower portion thereof, respectively, and a lower end of the first suspending member is positioned near one end in a longitudinal direction of an upper end of the moving wall main body. And a shaft member having an externally threaded portion at the upper end near the other end in the longitudinal direction of the upper end of the movable wall main body so as to be rotatable about a vertical axis, and to be rotatable around the first screw hole and in the vicinity thereof. In the first screw hole of the rotating member having a second screw hole provided in parallel with each other,
The male screw portion of the shaft member is screwed, and the male screw portion of the lower end of the second suspension member is screwed into the second screw hole of the rotating member. The core was eccentric with respect to the vertical axis by a predetermined eccentric dimension, and a double-type thrust bearing in which spheres were arranged in two stages vertically was interposed between the frame of the moving wall main body and the rotating member. Things.

[0006] Further, the shaft member is attached to the frame of the moving wall main body,
It is pivotally mounted via a thrust bearing.

A connecting rod having a male screw portion at a lower end portion screwed into a second screw hole of the rotating member;
A cylindrical portion having a stepped portion on an inner peripheral surface which is externally fitted to the connecting rod so as to be vertically slidable and is locked by a locking portion provided on an upper portion of the connecting rod to prevent the connecting rod from coming off; A suspension rod portion having a lower end portion fixed to the cylindrical portion and hanging from a suspension vehicle,
It is composed of

[0008]

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

FIG. 2 and FIG. 3 show an embodiment of a structure for suspending an earthquake-resistant moving wall according to the present invention. The structure for suspending an earthquake-resistant moving wall includes an exhibition hall, a convention, and a museum having a beam with a long span. In a building structure such as the above, a movable wall main body 1 used for displaying an internal partition, an exhibit such as a picture or a photograph, or the like is movably suspended from a ceiling C.

The quake-resistant movable wall suspension structure travels along rails R provided above the movable wall main body 1.
A first suspension member 3 and a second suspension member 4 are respectively suspended from the two suspension vehicles 2, 2, and the lower end of the first suspension member 3 is connected to one end in the length direction of the upper end of the movable wall main body 1. The second suspension member 4 is fixed to the vertical axis, and the vertical axis passing the predetermined position of the movable wall main body 1 via the eccentric rotation mechanism 5 near the other longitudinal end of the upper end of the movable wall main body 1. They are connected so as to be movable on the circumference around the center L.

As shown in FIG. 1, the eccentric rotation mechanism 5 has a shaft that is pivotally mounted so as to protrude upward near the other end in the length direction of the movable wall main body 1 and to be rotatable about the vertical axis L. Member 6
And a rotating member 7 having a central first screw hole 12 into which a male screw portion 14 formed at the upper end of the shaft member 6 is screwed, and a second screw hole 13 provided in the vicinity thereof in parallel with each other. And a double-type thrust bearing 15 interposed between the frame 9 of the moving wall main body 1 and the rotating member 7 and having spheres 30.

The thrust bearing 15 includes an upper wheel 31 and an intermediate wheel 32.
And a plurality of spheres 30 rotatably interposed between the lower wheel 33 and the upper wheel 31 and the intermediate wheel 32 and between the intermediate wheel 32 and the lower wheel 33.
The upper wheel 31 is fitted into a lower opening recess 35 provided on the lower surface of the rotating member 7, and the lower wheel 33 is provided with an upper opening recess provided on the upper surface of the bearing mounting member 25 of the main body 8. It is inserted in the place 36. In addition, a thrust bearing 16 is interposed between the head 6 a of the bolt member forming the shaft member 6 and the lower surface of the upper end wall 10 of the frame body 9. The thrust bearing 16 is composed of an upper wheel 37, a lower wheel 38, and spheres 39 therebetween. It should be noted that the thrust bearing 16 may be a double-type double-stage thrust bearing in some cases.
The frame body 9 of the moving wall main body 1 has a main body portion 8 having a gate-shaped cross section at an upper portion, and a bearing mounting member 25 is welded to an upper surface of the main body portion 8. Then, a through hole 11 in the vertical direction is provided in the main body 8 and the bearing mounting member 25, and the shaft member 6 is inserted into the through hole 11 from below.

The second suspension member 4 has a male screw portion 17 screwed into the second screw hole 13 of the rotating member 7 at a lower end thereof, and is vertically slidable relative to the connecting rod 18. And a locking portion 19 provided above the connecting rod 18.
Cylindrical part with a stepped part 20 on the inner peripheral surface that locks and prevents
And a suspension rod portion 22 having a lower end portion fixed to the cylindrical portion 21 and hanging from the upper suspension wheel 2. Further, the connecting rod 18 and the cylindrical portion 21 are relatively rotatable.

Thus, the axis L of the second suspension member 4 is eccentric with respect to the axis of the shaft member 6 by a predetermined eccentricity ε. The predetermined eccentric dimension ε is preferably set to 75 to 85 mm. This is because if it is less than 75 mm, there will be no space for mounting the thrust bearing 15, and if it exceeds 85 mm, the second suspension member 4 will not move upward when it is positioned on one side or the other side of the moving wall main body 1. This is because the whole from the hanging wheel 2 to the lower moving wall main body 1 is inclined, and smooth movement becomes difficult.

A predetermined spacing S is provided between the lower end surface of the cylindrical portion 21 and the upper surface of the rotating member 7 and between the upper end surface of the connecting rod 18 and the lower end surface of the suspension rod portion 22, respectively. Spacing portions 26 and 27 are provided so that members below the connecting rod 18 can be moved up and down by a predetermined spacing dimension S with respect to the cylindrical portion 21 and the hanging rod portion 22.

With the above-described configuration, the second suspension member 4 can move on a circumference centered on the vertical axis L. The maximum dimension B in which the second suspension member 4 can move in the horizontal direction is twice the predetermined eccentric dimension ε.

For this reason, as shown in FIGS. 4A and 4B, when the movable wall main body 1 is moved, the rotating member 7 rotates to rotate the first suspension member 3 and the second suspension member. Since the mutual distances of the moving walls 4 change, even if the moving wall main body 1 is slightly inclined with respect to the rails R in plan view, "movement" does not occur and the moving wall main body 1 can move smoothly. The moving wall body 1
Is the maximum angle θ _{1 at which} can be inclined with respect to a line perpendicular to the rail R. Also, the rails R, R may not be completely parallel, in which case a pair of rails R, R
Although the mutual distance W of R changes depending on the place, it can move smoothly in response to such a change. In addition, since the rotating member 7 rotates smoothly and silently with the upper and lower two-stage thrust bearing 15 and the single-stage thrust bearing 16, the rotating member 7 can be moved quietly without generating abnormal noise, which causes discomfort to persons in the building. No need to give.

Further, as shown in FIG. 1, even when the second suspension member 4 is moved to one side face with respect to the middle part in the thickness direction of the moving wall main body 1, the predetermined eccentricity ε is relatively small (ie, 75). 8585 mm), so that the movable wall main body 1 can be suspended almost vertically without losing the balance. In addition, the load applied to the thrust bearing 15 is deviated due to the eccentricity of the shaft centers L and M. However, since the thrust bearing 15 is of a dual type of upper and lower stages, the rotating member 7 rotates lightly.

To explain this easily, for example, as shown in a comparative example of FIG.
When the second suspending member 4 is located near one side of the moving wall main body 1 when the setting is made, the moving wall main body 1 cannot be vertically suspended, and the moving wall main body 1 is It is inclined by an angle θ. For this reason, the hanging vehicle 2 is inclined, or the balance of the weights applied by the left and right wheels is largely biased, and it becomes difficult to move the hanging vehicle 2. That is, it becomes difficult to move the moving wall main body 1.

On the other hand, according to the earthquake-resistant moving wall suspension structure of the present invention, as shown in FIG. 5, since the predetermined eccentricity ε is small as described above, the moving wall main body 1 is suspended almost vertically. Since the balance of the weights applied by the left and right wheels of the suspension vehicle 2 becomes equal, the vehicle can be moved smoothly.

Further, even if the mutual distance W between the pair of rails R, R changes due to the rolling of the earthquake, the rotating member 7 can rotate to absorb the rolling, and the first and second suspension members 3, 3 can be absorbed. 4 is not damaged. Further, when the movable wall main body 1 swings up and down due to a vertical swing of an earthquake or the like, the cylindrical portion 21 of the second suspension member 4
And the connecting rod 18 can be relatively slid up and down to absorb up and down shaking. Therefore, the connecting portion between the second suspension member 4 and the rotating member 7 is not damaged.

Next, FIG. 7 shows another embodiment of the suspension structure for the earthquake-resistant moving wall according to the present invention, in which the shaft of the shaft member 6 is protruded above the rotating member 7 and the protruding portion is formed. A nut member 28 is screwed onto the male screw portion 14 of the portion. Others are almost the same as those described in FIG. With this configuration, the connection strength between the shaft member 6 and the rotating member 7 can be increased.

In the present invention, the first suspension member 3, the second suspension member 4, and the eccentric rotation mechanism 5 are connected to the movable wall main body 1.
May be disposed on either side of the length direction.

[0024]

Since the present invention is configured as described above, the following effects can be obtained.

According to the first aspect of the present invention, when the movable wall body 1 is moved, the rotating member 7 rotates silently and the first suspended member 3 and the second suspended member are moved. 4, the moving wall main body 1 is slightly inclined with respect to the rails R, R in plan view, or the rails R, R
R can move smoothly even if it is not perfectly parallel. In addition, no abnormal noise occurs when moving. In addition, even when the heavy moving wall body 1 is suspended by the upper and lower two-stage thrust bearings 15, the rotating member 7 rotates lightly. Also,
The structure is simple, and assembly and construction are easy.

According to the second aspect of the present invention, the rotary member 7 can be rotated more easily, and the movable wall can be moved more smoothly.

According to the quake-resistant moving wall suspension structure of the third aspect, a vertical sway can be absorbed during an earthquake, and the quake resistance is excellent.

[Brief description of the drawings]

FIG. 1 is an enlarged sectional view of a main part showing one embodiment of the present invention.

FIG. 2 is a simplified front view.

FIG. 3 is a simplified plan view.

FIG. 4 is an operation explanatory view.

FIG. 5 is an operation explanatory view.

FIG. 6 is an operation explanatory view of a comparative example.

FIG. 7 is an enlarged sectional view of a main part showing another embodiment of the present invention.

FIG. 8 is an explanatory view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Moving wall main body 2 Suspension wheel 3 First suspension member 4 Second suspension member 6 Shaft member 7 Rotating member 9 Frame 12 First screw hole 13 Second screw hole 14 Male thread 15 Thrust bearing 16 Thrust bearing 17 Male thread 18 Connecting rod 19 Locking part 20 Stepped part 21 Cylindrical part 22 Suspended rod part 30 Sphere L Vertical axis M Axis R rail ε Predetermined eccentric dimension

Claims (3)

[Claims] A first suspension member (2) running along rails (R) disposed above a movable wall main body (1) and a first suspension member (3) having a male screw portion (17) at a lower portion thereof. (2) A hanging member 4 is vertically suspended, and a lower end of the first hanging member 3 is fixed to one end of the upper end of the moving wall main body 1 in the longitudinal direction, and an upper end of the moving wall main body 1 A shaft member 6 having an external thread portion 14 on the upper side near the other end in the longitudinal direction is rotatably pivoted around the vertical axis L, and a second screw hole 12 and a second screw hole are provided in the vicinity thereof in parallel with each other. The male screw portion 14 of the shaft member 6 is screwed into the first screw hole 12 of the rotating member 7 having the screw hole 13, and the second suspension is further screwed into the second screw hole 13 of the rotating member 7. The male screw portion 17 at the lower end of the member 4 is screwed in, and the axis M of the second suspension member 4 is eccentric with respect to the vertical axis L by a predetermined eccentric dimension ε, and is moved. A quake-resistant moving wall suspension structure characterized in that a double-type thrust bearing 15 in which spheres 30 are arranged in two stages vertically is interposed between the frame 9 of the wall main body 1 and the rotating member 7. 2. The frame member 9 of the moving wall main body 1
And a thrust bearing (16).
The described earthquake-resistant moving wall suspension structure. 3. A connecting rod in which the second suspension member 4 has a male screw portion 17 at the lower end screwed into the second screw hole 13 of the rotating member 7.
18 and a stepped portion 20 which is externally fitted to the connecting rod 18 so as to be vertically slidable and is locked by a locking portion 19 provided on the upper part of the connecting rod 18 to prevent it from being pulled out. Cylindrical part 21
2. A suspension rod portion 22 having a lower end portion fixed to the cylindrical portion 21 and suspended from the suspension wheel 2.
Or the earthquake-resistant moving wall suspension structure according to 2.