Vibration suppression system

Abstract

To provide a shake suppressing system capable of enhancing usability and productivity of the shake suppressing system.SOLUTION: A shake suppressing system 20 comprises a shake suppressing unit 60 for suppressing shaking of a lifting object 10 while supporting each of a pair of guide rollers 30 provided in the lifting object 10 so as to be horizontally movable substantially along a wall of a building, and the shake suppressing unit 60 comprises a distance adjustment part 70 that changes a mutual distance between the pair of guide rollers 30 by causing, when one of the pair of guide rollers 30 moves in one direction horizontally, the other of the pair of guide rollers 30 to move in the other direction horizontally, and holds the mutual distance by restricting the horizontal movement of the pair of guide rollers 30 when the pair of guide rollers 30 receive external force in the horizontal direction through corresponding guide rollers.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a sway suppression system. [Background technology]

[0002] One conventional system for suppressing the swaying of gondolas used in cleaning work or maintenance work on the windows or exterior walls of buildings is a system that uses a pair of guide rails spaced apart on the exterior wall of the building and a pair of guide rollers attached to the gondola at a distance from each other, with each guide roller engaged with the flange of the corresponding guide rail and able to roll on the surface of the flange as the gondola rises and falls, to raise and lower the gondola and suppress the swaying of the gondola (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-160013 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-described conventional system, when both of the pair of guide rollers are supported on the gondola so as not to move horizontally in a direction substantially parallel to the outer wall, if the mutual distance between the pair of guide rails does not match the mutual distance between the pair of guide rollers, it is difficult to adjust the mutual distance between the pair of guide rollers, which may reduce the usability of the pair of guide rollers. On the other hand, when only one of the pair of guide rollers is supported on the gondola so as to be able to move horizontally in a direction substantially parallel to the outer wall, when the pair of guide rollers is subjected to an external force in the horizontal direction, only the other of the pair of guide rollers is likely to be subjected to the external force. This may excessively increase the strength of the pair of guide rollers, which may result in excessive manufacturing costs for the pair of guide rollers. For these reasons, there is room for improvement in terms of improving the usability and manufacturability of the system.

[0005] The present invention is intended to solve the problems in the conventional technology described above, and has an object to provide a vibration suppression system that can improve the usability and manufacturability of the vibration suppression system. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems and achieve the object, the sway suppression system described in claim 1 is a sway suppression system for suppressing sway of an object to be lifted or lowered when the object is lifted or lowered via a pair of long guide rails attached to a wall portion of a building, the pair of guide rails being respectively attached to the wall portion so that the longitudinal directions of the guide rails are approximately along the up-down direction, the system comprising: a pair of guide rollers attached to the object to be lifted or lowered, the pair of guide rollers being respectively arranged so that each of the pair of guide rollers is guided by a corresponding guide rail; and sway suppression means for suppressing sway of the object to be lifted or lowered while supporting each of the pair of guide rollers so that it can move horizontally in a horizontal direction approximately along the wall portion, wherein when one of the pair of guide rollers moves horizontally in one of the horizontal directions, the sway suppression means changes the mutual distance between the pair of guide rollers by horizontally moving the other of the pair of guide rollers in the other of the horizontal directions, and Each of through the corresponding guide rail Same direction the horizontal external force Received a distance adjusting means for restricting horizontal movement of the pair of guide rollers when the guide rollers are being moved, thereby maintaining the mutual distance; the distance adjustment means comprises first support means that supports one of the pair of guide rollers so that it is horizontally movable in the horizontal direction; second support means that supports the other of the pair of guide rollers so that it is horizontally movable in the horizontal direction; and transmission means that, when one of the pair of guide rollers moves horizontally in one of the horizontal directions, causes a force that the first support means receives via one of the pair of guide rollers to act on the second support means, and that, when each of the pair of guide rollers receives an external force in the horizontal direction in the same direction via the corresponding guide rail, cancels out the force that the first support means receives via one of the pair of guide rollers and the force that the second support means receives via the other of the pair of guide rollers.

[0007] The vibration suppression system according to claim 2 comprises: a vibration suppression system for suppressing the vibration of an object to be lifted or lowered when the object is raised or lowered via a pair of long guide rails attached to a wall portion of a building, the pair of guide rails being respectively attached to the wall portion so that the longitudinal directions of the guide rails are approximately along the up-down direction, the vibration suppression system comprising: a pair of guide rollers attached to the object to be lifted or lowered, the pair of guide rollers being respectively arranged so that each of the pair of guide rollers is guided by a corresponding guide rail; and vibration suppression means for suppressing the vibration of the object to be lifted or lowered while supporting each of the pair of guide rollers so that it can move horizontally in a horizontal direction approximately along the wall portion, the vibration suppression means comprising distance adjustment means for changing the mutual distance between the pair of guide rollers when one of the pair of guide rollers moves horizontally in one of the horizontal directions, by horizontally moving the other of the pair of guide rollers in the other of the horizontal directions, and for maintaining the mutual distance when the pair of guide rollers are each subjected to an external force in the horizontal direction via the corresponding guide rail, The distance adjustment means comprises first support means that supports one of the pair of guide rollers so that it can move horizontally in the horizontal direction, second support means that supports the other of the pair of guide rollers so that it can move horizontally in the horizontal direction, and transmission means that, when one of the pair of guide rollers moves horizontally in one of the horizontal directions, causes a force that the first support means receives via one of the pair of guide rollers to act on the second support means, and that, when the pair of guide rollers receive external forces in the horizontal direction via the corresponding guide rail, cancels out the force that the first support means receives via one of the pair of guide rollers and the force that the second support means receives via the other of the pair of guide rollers. The distance adjusting means includes a first mounting position adjusting means for adjusting the mounting position of at least one of the pair of guide rollers.

[0008] The vibration suppression system according to claim 3 comprises: A sway suppression system for suppressing sway of an object to be lifted or lowered when the object is lifted or lowered via a pair of long guide rails attached to a wall portion of a building, the pair of guide rails being respectively attached to the wall portion so that the longitudinal directions of the guide rails are approximately along the up-down direction, the system comprising: a pair of guide rollers attached to the object to be lifted or lowered, the pair of guide rollers being respectively arranged so that each of the pair of guide rollers is guided by a corresponding guide rail; and sway suppression means for suppressing sway of the object to be lifted or lowered while supporting each of the pair of guide rollers so that it can move horizontally in a horizontal direction approximately along the wall portion, the sway suppression means being configured to support one of the pair of guide rollers. The device is provided with a distance adjustment means that changes the mutual distance between the pair of guide rollers by horizontally moving the other of the pair of guide rollers in the other of the horizontal directions when either one of the pair of guide rollers moves horizontally in one of the horizontal directions, and that maintains the mutual distance by restricting the horizontal movement of the pair of guide rollers when the pair of guide rollers are each subjected to the horizontal external force via the corresponding guide rail, and at least one of the pair of guide rollers is provided with a guide roller body and an attachment means for attaching the guide roller body to the distance adjustment means and that supports the guide roller body rotatably.

[0009] The vibration suppression system according to claim 4 comprises: a vibration suppression system for suppressing the vibration of an object to be lifted or lowered when the object is raised or lowered via a pair of long guide rails attached to a wall portion of a building, the pair of guide rails being attached to the wall portion so that the longitudinal direction of the guide rails is approximately along the up-down direction; a pair of guide rollers attached to the object to be lifted or lowered, each of the pair of guide rollers being arranged so that each of the pair of guide rollers is guided by a corresponding guide rail; and vibration suppression means for suppressing the vibration of the object to be lifted or lowered while supporting each of the pair of guide rollers so that it can move horizontally in a horizontal direction approximately along the wall portion, the vibration suppression means comprising: distance adjustment means for changing the mutual distance between the pair of guide rollers when one of the pair of guide rollers moves horizontally in one of the horizontal directions, by horizontally moving the other of the pair of guide rollers in the other of the horizontal directions, and for maintaining the mutual distance by limiting the horizontal movement of the pair of guide rollers when the pair of guide rollers are each subjected to an external force in the horizontal direction via the corresponding guide rail; and second attachment position adjustment means for adjusting the attachment position of the vibration suppression means. [Effects of the Invention]

[0011] According to the vibration suppression system described in claim 1, the vibration suppression means includes a distance adjustment means that, when one of the pair of guide rollers moves horizontally in one of the horizontal directions, moves the other of the pair of guide rollers horizontally in the other of the horizontal directions, thereby changing the mutual distance between the pair of guide rollers, and that, when the pair of guide rollers are subjected to a horizontal external force via the corresponding guide rail, restricts the horizontal movement of the pair of guide rollers, thereby maintaining the mutual distance. Therefore, the mutual distance can be changed when one of the pair of guide rollers moves in one of the horizontal directions. This allows for absorbing errors in the mutual distance between the pair of guide rails, improving the usability of the vibration suppression system. Furthermore, the mutual distance can be maintained when the pair of guide rollers are subjected to the horizontal external force via the corresponding guide rail. Therefore, because both of the pair of guide rollers can withstand the horizontal external force, it is possible to avoid excessively increasing the strength of the pair of guide rollers, improving the manufacturability of the vibration suppression system. Furthermore, the distance adjustment means comprises a first support means for supporting one of the pair of guide rollers so that it can move horizontally in the horizontal direction, a second support means for supporting the other of the pair of guide rollers so that it can move horizontally in the horizontal direction, and a transmission means for applying to the second support means the force that the first support means receives through one of the pair of guide rollers when one of the pair of guide rollers moves horizontally in one of the horizontal directions, and for canceling out the force that the first support means receives through one of the pair of guide rollers and the force that the second support means receives through the other of the pair of guide rollers when the pair of guide rollers each receive a horizontal external force through the corresponding guide rail.Therefore, the distance adjustment means can be constructed relatively simply, and the manufacturability of the distance adjustment means can be improved.

[0012] According to the vibration suppression system of claim 2, The vibration suppression means includes a distance adjustment means that, when one of the pair of guide rollers moves horizontally in one of the horizontal directions, moves the other of the pair of guide rollers horizontally in the other of the horizontal directions, thereby changing the mutual distance between the pair of guide rollers, and that, when the pair of guide rollers are subjected to a horizontal external force via the corresponding guide rail, restricts the horizontal movement of the pair of guide rollers, thereby maintaining the mutual distance. Therefore, the mutual distance can be changed when one of the pair of guide rollers moves in one of the horizontal directions. This allows for absorbing errors in the mutual distance between the pair of guide rails, improving the usability of the vibration suppression system. Furthermore, the mutual distance can be maintained when the pair of guide rollers are subjected to the horizontal external force via the corresponding guide rail. Therefore, because both of the pair of guide rollers can withstand the horizontal external force, it is possible to avoid excessively increasing the strength of the pair of guide rollers, improving the manufacturability of the vibration suppression system. Also,The distance adjustment means comprises a first support means that supports one of the pair of guide rollers so that it can move horizontally in the horizontal direction, a second support means that supports the other of the pair of guide rollers so that it can move horizontally in the horizontal direction, and a transmission means that, when one of the pair of guide rollers moves horizontally in one of the horizontal directions, causes the force that the first support means receives through one of the pair of guide rollers to act on the second support means, and that, when the pair of guide rollers each receive a horizontal external force through the corresponding guide rail, cancels out the force that the first support means receives through one of the pair of guide rollers and the force that the second support means receives through the other of the pair of guide rollers.Therefore, the distance adjustment means can be constructed relatively simply, and the manufacturability of the distance adjustment means can be improved. In addition, since the distance adjustment means is equipped with a first mounting position adjustment means for adjusting the mounting position of at least one of the pair of guide rollers, the mounting position of the second guide roller can be adjusted, thereby improving the ease of installation of the pair of guide rollers.

[0013] According to the vibration suppression system of claim 3, The vibration suppression means includes a distance adjustment means that, when one of the pair of guide rollers moves horizontally in one of the horizontal directions, moves the other of the pair of guide rollers horizontally in the other of the horizontal directions, thereby changing the mutual distance between the pair of guide rollers, and that, when the pair of guide rollers are subjected to a horizontal external force via the corresponding guide rail, restricts the horizontal movement of the pair of guide rollers, thereby maintaining the mutual distance. Therefore, the mutual distance can be changed when one of the pair of guide rollers moves in one of the horizontal directions. This allows for absorbing errors in the mutual distance between the pair of guide rails, improving the usability of the vibration suppression system. Furthermore, the mutual distance can be maintained when the pair of guide rollers are subjected to the horizontal external force via the corresponding guide rail. Therefore, because both of the pair of guide rollers can withstand the horizontal external force, it is possible to avoid excessively increasing the strength of the pair of guide rollers, improving the manufacturability of the vibration suppression system. Furthermore, at least one of the pair of guide rollers comprises a guide roller body and an attachment means for attaching the guide roller body to the distance adjustment means, which supports the guide roller body so that it can rotate freely.Therefore, the guide roller body can be rotated by the attachment means, and this rotation can be used to absorb errors in the mutual distance between the pair of guide rails.

[0014] According to the vibration suppression system of claim 3, The vibration suppression means includes a distance adjustment means that, when one of the pair of guide rollers moves horizontally in one of the horizontal directions, moves the other of the pair of guide rollers horizontally in the other of the horizontal directions, thereby changing the mutual distance between the pair of guide rollers, and that, when the pair of guide rollers are subjected to a horizontal external force via the corresponding guide rail, restricts the horizontal movement of the pair of guide rollers, thereby maintaining the mutual distance. Therefore, the mutual distance can be changed when one of the pair of guide rollers moves in one of the horizontal directions. This allows for absorbing errors in the mutual distance between the pair of guide rails, improving the usability of the vibration suppression system. Furthermore, the mutual distance can be maintained when the pair of guide rollers are subjected to the horizontal external force via the corresponding guide rail. Therefore, because both of the pair of guide rollers can withstand the horizontal external force, it is possible to avoid excessively increasing the strength of the pair of guide rollers, improving the manufacturability of the vibration suppression system. Furthermore, since the second mounting position adjusting means for adjusting the mounting position of the vibration suppressing means is provided, the mounting position of the vibration suppressing means can be adjusted, and the ease of installation of the vibration suppressing means can be improved. [Brief explanation of the drawings]

[0016] [Figure 1] 1A, 1B, and 1C are diagrams showing a vibration suppression system and a lifting target according to an embodiment of the present invention, in which FIG. 1A is a front view, FIG. 1B is a plan view, and FIG. 1C is a right side view. [Figure 2] FIG. 2 is a perspective view showing a vibration suppression system. [Figure 3] 1A and 1B are diagrams showing a vibration suppression system, in which (a) is a front view and (b) is a plan view. [Figure 4] FIG. 2 is a right side view showing the vibration suppression system. [Figure 5] 4A and 4B are enlarged views showing the vicinity of the transmission part in FIG. 3A, where (a) is a front view, (b) is a cross-sectional view taken along the line AA, and (c) is a cross-sectional view taken along the line BB. [Figure 6]3 is a diagram showing a first operation of the distance adjusting section, and is a diagram showing an area corresponding to FIG. 2. FIG. [Figure 7] 3 is a diagram showing a second operation of the distance adjusting unit, showing an area corresponding to FIG. 2. FIG. [Figure 8] 10 is a diagram showing a third operation of the distance adjusting unit, illustrating an area corresponding to FIG. 2. FIG. [Figure 9] 10A, 10B, and 10C are diagrams showing a modified example of the vibration suppression system, in which (a) is a front view, (b) is a plan view, and (c) is a right side view. [Figure 10] FIG. 10 is a plan view showing a modified example of the distance adjustment unit. [Figure 11] FIG. 10 is a plan view showing a modified example of the distance adjustment unit. DETAILED DESCRIPTION OF THE INVENTION

[0017] An embodiment of a vibration suppression system according to the present invention will be described in detail below with reference to the accompanying drawings. First, [I] the basic concept of the embodiment will be described, then [II] specific details of the embodiment will be described, and finally, [III] modifications to the embodiment will be described. However, the present invention is not limited to the embodiment.

[0018] [I] Basic Concept of the Embodiment First, the basic concept of the embodiment will be described. The embodiment generally relates to a vibration suppression system that suppresses the vibration of an object to be lifted or lowered when the object is lifted or lowered via a pair of long guide rails attached to a wall of a building, the pair of guide rails being respectively provided on the wall so that the longitudinal direction of the guide rails is approximately along the up-down direction.

[0019] Here, the specific structure and type of "building" is arbitrary, but the concept includes, for example, commercial facilities, office buildings, public facilities, and apartment complexes such as apartments and condominiums, but in this embodiment, we will explain it as an office building.

[0020] "Lifted object" means an object that is lifted and lowered using, for example, a pair of guide rails, and is a concept that includes, for example, a gondola, a crane hoisting hardware, a window cleaning device, etc., but in the embodiment, it will be described as a gondola.

[0021] [II] Specific details of the embodiment Next, specific details of the embodiment will be described.

[0022] (composition) First, the configuration of a vibration suppression system 20 according to the embodiment, the configuration of a lifting target 10 on which the vibration suppression system 20 is installed, and the configuration of a guide rail 1 for lifting and lowering the lifting target 10 will be described.

[0023] (Configuration - Guide rail) First, the configuration of the guide rail 1 will be described.

[0024] In the following explanation, the X direction in Figure 1 will be referred to as the left-right direction of the vibration suppression system 20 (the -X direction will be referred to as the left direction of the vibration suppression system 20, and the +X direction will be referred to as the right direction of the vibration suppression system 20), the Y direction in Figure 1 will be referred to as the front-to-back direction of the vibration suppression system 20 (the +Y direction will be referred to as the front direction of the vibration suppression system 20, and the -Y direction will be referred to as the rear direction of the vibration suppression system 20), and the Z direction in Figure 1 will be referred to as the up-down direction of the vibration suppression system 20 (the +Z direction will be referred to as the upward direction of the vibration suppression system 20, and the -Z direction will be referred to as the downward direction of the vibration suppression system 20).

[0025] The guide rail 1 (shown by imaginary lines in FIG. 1 ) is used to guide the elevation of the object 10 to be elevated. This guide rail 1 is configured using, for example, a known guide rail for elevation. Specifically, as shown in FIG. 1 , it is configured as a long guide rail formed so that its cross section is roughly U-shaped. More specifically, it includes a left rail piece located on the left side, a right rail piece located on the right side, a connecting rail piece connecting the left rail piece and the right rail piece, and restraining rail pieces that protrude inward in the left-right direction from the tip end of each of the left rail piece and the right rail piece and that prevent guide rollers 30 (described below) from falling off the guide rail 1.

[0026] Two guide rails 1 are attached to a wall (not shown) of a building (i.e., a pair of guide rails 1 are attached to the wall). Specifically, as shown in Fig. 1, the pair of guide rails 1 are provided such that the longitudinal direction of each guide rail 1 is approximately along the vertical direction, and are arranged side by side in the horizontal direction at a distance from each other, and are fixed to the wall by fixtures or the like.

[0027] In the embodiment, the guide rail 1 is described as being already installed on the wall of a building, but this is not limited to this, and it may also be temporarily installed, for example, when raising and lowering the object 10 to be raised and lowered.

[0028] Furthermore, in the following, as necessary, of the pair of guide rails 1, the guide rail 1a located on the left side of Figure 1 will be referred to as the "first guide rail 1a," and the guide rail 1b located on the right side of Figure 1 will be referred to as the "second guide rail 1b."

[0029] (Configuration - Lifting target) Next, the configuration of the object 10 to be lifted and lowered will be described.

[0030] The lifting object 10 is configured using, for example, a known gondola or the like (one example is a gondola equipped with a hanging member connection part 16 for connecting a hanging member, which will be described later). Specifically, as shown in Fig. 1, it is configured as a steel box-shaped body with an open upper end, and more specifically, it is equipped with a left lifting surface part 11 located on the left side, a right lifting surface part 12 located on the right side, a front lifting surface part 13 connecting the left lifting surface part 11 and the right lifting surface part 12 and located on the front side (wall side), a rear lifting surface part 14 connecting the left lifting surface part 11 and the right lifting surface part 12 and located on the rear side (opposite the wall), and a bottom lifting surface part 15 located on the bottom side.

[0031] Furthermore, the object 10 to be lifted is provided near the wall while being suspended by a hoist (not shown) via a hanging material (not shown), and specifically, as shown in Figure 1, it is provided at a distance from the wall and can be raised and lowered relative to a pair of guide rails 1 via a vibration suppression system 20.

[0032] (Configuration - Vibration suppression system) Next, the configuration of the vibration suppression system 20 will be described.

[0033] The vibration suppression system 20 is a system for suppressing vibration of the object 10 to be lifted or lowered when the object 10 is raised or lowered via a pair of guide rails 1. As shown in Fig. 1, the vibration suppression system 20 is provided on the object 10 to be lifted or lowered, and as shown in Fig. 2, includes a pair of guide rollers 30 and a vibration suppression unit 60.

[0034] (Configuration - Vibration suppression system - Guide roller) The pair of guide rollers 30 are for sliding the lifting target 10 on the pair of guide rails 1. The pair of guide rollers 30 are arranged closer to the wall (front in FIG. 1 ) than the lifting target 10 so that each of the pair of guide rollers 30 is guided by the corresponding guide rail 1. Specifically, as shown in FIGS. 2 and 3 , the pair of guide rollers 30 are arranged side by side at a distance from each other and generally along the left-right direction, with one of the pair of guide rollers 30 arranged to be guided by the first guide rail 1 a and the other of the pair of guide rollers 30 arranged to be guided by the second guide rail 1 b.

[0035] In the following, where necessary, of the pair of guide rollers 30, the guide roller 31 guided by the first guide rail 1a will be referred to as the "first guide roller 31," and the guide roller 32 guided by the second guide rail 1b will be referred to as the "second guide roller 32."

[0036] Furthermore, the specific configuration of the pair of guide rollers 30 is arbitrary, but in the embodiment, as shown in Figures 3 and 4, each of the pair of guide rollers 30 includes a guide roller main body 40 and an attachment portion 50.

[0037] (Configuration - Vibration suppression system - Guide roller - Guide roller body) Returning to FIG. 3, the guide roller body 40 is the basic structure of the guide roller 30. This guide roller body 40 is constructed using, for example, a known guide roller member. Specifically, as shown in FIGS. 3 and 4, the guide roller body 40 includes a plurality of first roller bodies 41 arranged in parallel along the vertical direction, the first roller bodies 41 for sliding on the guide rail 1, second roller bodies 42 provided above and below the first roller bodies 41 for receiving horizontal forces substantially along the wall portion (left-right forces in FIG. 3), a first main body portion 43 for supporting the first roller bodies 41 and the second roller bodies 42, and a second main body portion 44 connecting the first main body portion 43 and the mounting portion 50.

[0038] Furthermore, as shown in Figures 3 and 4, this guide roller main body 40 is arranged so that the parallel arrangement direction of the multiple first roller bodies 41 is approximately along the vertical direction, and the first roller body 41 and second roller body 42 of the guide roller main body 40 are arranged so that they are fitted into the guide roller 30.

[0039] (Configuration - Vibration suppression system - Guide roller - Mounting part) Returning to Fig. 3, the mounting portion 50 is a mounting means for mounting the guide roller main body 40 to the distance adjustment portion 70 described below. This mounting portion 50 is configured using, for example, a known mounting member that can rotatably support the guide roller main body 40. Specifically, as shown in Figs. 3 and 4, it includes a first mounting portion 51 that supports the second main body portion 44 rotatably around the Y axis, and a second mounting portion 52 that connects the first mounting portion 51 to the distance adjustment portion 70 described below (specifically, a first support portion 80 or a second support portion 90 described below) so that the first mounting portion 51 can slide substantially along the left-right direction.

[0040] As shown in Figures 3 and 4, the mounting portion 50 is provided between the guide roller main body 40 and the distance adjustment portion 70 described below. Specifically, the first mounting portion 51 is rotatably connected to the second main body portion 44 by a fixing device or the like, and the second mounting portion 52 is slidably connected to the first support portion 80 (or the second support portion 90) described below by a sliding member (e.g., a known roller member, etc.) not shown in the figure so as to be slidable approximately along the left-right direction.

[0041] With such a guide roller 30, the guide roller body 40 can be rotated by the mounting portion 50, and this rotation can be used to absorb errors in the mutual distance between the pair of guide rails 1.

[0042] (Configuration - Vibration suppression system - Vibration suppression unit) Returning to Fig. 1, the vibration suppression unit 60 is a vibration suppression means for suppressing the vibration of the lifting / lowering object 10 while supporting each of the pair of guide rollers 30 so that they can move horizontally in the horizontal direction (left and right direction in Fig. 1). As shown in Fig. 1, the vibration suppression unit 60 is provided between the guide rollers 30 and the lifting / lowering object 10, and includes a distance adjustment unit 70 and a support unit 120 as shown in Figs. 2 and 3.

[0043] Here, in the embodiment, "swaying of the lifting target 10" refers to horizontal swinging of the lifting target 10 (specifically, swinging in the front-back direction in FIG. 1, swinging in the left-right direction in FIG. 1, etc.).

[0044] (Configuration - Vibration suppression system - Vibration suppression unit - Distance adjustment unit) The distance adjustment unit 70 is a distance adjustment means that, when one of the pair of guide rollers 30 moves horizontally in one of the horizontal directions (left and right directions in FIG. 3), changes the mutual distance between the pair of guide rollers 30 by horizontally moving the other of the pair of guide rollers 30 in the other of the horizontal directions, and that maintains the mutual distance by restricting the horizontal movement of the pair of guide rollers 30 when the pair of guide rollers 30 are each subjected to an external force in the horizontal direction via the corresponding guide rail 1. As shown in FIGS. 3 and 5, the distance adjustment unit 70 includes a first support unit 80, a second support unit 90, a transmission unit 100, and a first mounting position adjustment unit 110.

[0045] Here, the "external force in the horizontal direction" refers to, for example, earthquake force, wind force, human force, etc. in the horizontal direction.

[0046] (Configuration - vibration suppression system - vibration suppression unit - distance adjustment unit - first support unit) Returning to Figure 3, the first support part 80 is a first support means that supports one of the pair of guide rollers 30 (specifically, the first guide roller 31) so that it can move horizontally in the above-mentioned horizontal direction, and as shown in Figure 3, is provided near the first guide roller 31 and includes a first moving part 81, a first rotating part 82, and a first guide part 83.

[0047] (Configuration - vibration suppression system - vibration suppression unit - distance adjustment unit - first support unit - first moving unit) The first moving part 81 is for horizontally moving the first guide roller 31 in the horizontal direction. This first moving part 81 is configured using, for example, a known chain member (one example is a long, substantially circular chain member), and as shown in Fig. 3, the longitudinal direction of the first moving part 81 is provided substantially along the left-right direction, and is connected to the second mounting part 52 of the first guide roller 31 by an engagement structure, a fixing device, or the like.

[0048] (Configuration - vibration suppression system - vibration suppression unit - distance adjustment unit - first support unit - first rotation unit) The first rotating portion 82 is for rotating the first moving portion 81. This first rotating portion 82 is configured using, for example, a known sprocket member (as an example, a sprocket member having a first rotating body 82c and a first rotating shaft portion 82d that rotates the first rotating body 82c), and as shown in Fig. 3, two first rotating portions 82 are arranged side by side at a distance from each other and approximately along the left-right direction on the inner edge side of the first moving portion 81. Specifically, the first rotating body 82c of each first rotating portion 82 is arranged to be wrapped around the first moving portion 81, and the first rotating shaft portion 82d of each first rotating portion 82 is rotatably arranged with respect to the first guide portion 83 by a first support member 82e attached to the first guide portion 83.

[0049] In the following, as necessary, of the two first pivoting parts 82, the first pivoting part 82a located on the inside in the left-right direction of the distance adjustment part 70 will be referred to as the "inner first pivoting part 82a," and the first pivoting part 82b located on the outside in the left-right direction of the distance adjustment part 70 will be referred to as the "outer first pivoting part 82b."

[0050] (Configuration - vibration suppression system - vibration suppression unit - distance adjustment unit - first support unit - first guide unit) The first guide portion 83 is for guiding the horizontal movement of the first guide roller 31 in the horizontal direction. The first guide portion 83 is configured using, for example, a known guide material (one example is a long guide material having a substantially U-shaped cross section), and is provided so that the longitudinal direction of the first guide portion 83 is substantially along the left-right direction, and the second attachment portion 52 of the first guide roller 31 is fitted into the first guide portion 83 via a sliding member.

[0051] (Configuration - vibration suppression system - vibration suppression unit - distance adjustment unit - second support unit) The second support part 90 is a second support means that supports the other of the pair of guide rollers 30 (specifically, the second guide roller 32) so that it can move horizontally in the horizontal direction (left and right direction in Figure 3), and as shown in Figure 3, is provided near the second guide roller 32 and includes a second moving part 91, a second rotating part 92, and a second guide part 93.

[0052] (Configuration - vibration suppression system - vibration suppression unit - distance adjustment unit - second support unit - second moving unit) The second moving part 91 is for horizontally moving the second guide roller 32 in the horizontal direction. This second moving part 91 is configured using, for example, a known chain member (one example is a long, substantially circular chain member), and as shown in Fig. 3, the longitudinal direction of the second moving part 91 is provided substantially along the left-right direction, and is connected to the second mounting part 52 of the second guide roller 32 by an engagement structure, a fixing device, or the like.

[0053] (Configuration - vibration suppression system - vibration suppression unit - distance adjustment unit - second support unit - second rotation unit) The second rotation portion 92 rotates the second moving portion 91. The second rotation portion 92 is configured using, for example, a known sprocket member (one example being a sprocket member having a second rotation body 92c and a second rotation shaft portion 92d that rotates the second rotation body 92c), and as shown in Fig. 3, two second rotation portions 92 are arranged side by side at a distance from each other approximately along the left-right direction on the inner edge side of the second moving portion 91. Specifically, the second rotation body 92c of each second rotation portion 92 is arranged to be wrapped around the second moving portion 91, and the second rotation shaft portion 92d of each second rotation portion 92 is rotatably provided relative to the second guide portion 93 by a second support member 92e attached to the second guide portion 93, and is connected to the second rotation body 92c by a fixture or the like.

[0054] In the following, as necessary, of the two second pivoting parts 92, the second pivoting part 92a located on the inside in the left-right direction of the distance adjustment part 70 will be referred to as the "inner second pivoting part 92a," and the second pivoting part 92b located on the outside in the left-right direction of the distance adjustment part 70 will be referred to as the "outer second pivoting part 92b."

[0055] (Configuration - vibration suppression system - vibration suppression unit - distance adjustment unit - second support unit - second guide unit) The second guide portion 93 is for guiding the horizontal movement of the second guide roller 32 in the horizontal direction. The second guide portion 93 is configured using, for example, a known guide material (one example is a long guide material having a substantially U-shaped cross section), and is provided so that the longitudinal direction of the second guide portion 93 is substantially along the left-right direction, and the second mounting portion 52 of the second guide roller 32 is fitted into the second guide portion 93 via a sliding member.

[0056] The method for forming the second guide portion 93 is arbitrary, and although in the embodiment the first guide portion 83 and the second guide portion 93 are formed integrally, this is not limiting, and for example the first guide portion 83 and the second guide portion 93 may be formed separately.

[0057] (Configuration - Vibration suppression system - Vibration suppression unit - Distance adjustment unit - Transmission unit) The transmission unit 100 is a transmission means that, when one of the pair of guide rollers 30 moves horizontally in one of the horizontal directions, causes a force that either the first support unit 80 or the second support unit 90 receives through one of the pair of guide rollers 30 to act on the other of the first support unit 80 or the second support unit 90, and that, when the pair of guide rollers 30 receive the horizontal external force via the corresponding guide rail 1, cancels out (cancels out) the force that the first support unit 80 receives through one of the pair of guide rollers 30 and the force that the second support unit 90 receives through the other of the pair of guide rollers 30. As shown in FIG. 3, the transmission unit 100 includes a first transmission unit 101 and a second transmission unit 102.

[0058] (Configuration - vibration suppression system - vibration suppression unit - distance adjustment unit - transmission unit - first transmission unit) The first transmission part 101 is a part of the basic structure of the transmission part 100. The first transmission part 101 is configured using, for example, a known gear material. Specifically, the first transmission part 101 is configured using a gear material that allows the diameter of the first rotation body 82c of the first transmission part 101 to be set larger than the diameter of the first rotation body 82c of the inner first rotation part 82a. As shown in FIGS. 3 and 5 , the first transmission part 101 is provided near the inner first rotation part 82a so as to be rotatable in accordance with the rotation of the first rotation shaft part 82d of the inner first rotation part 82a. Specifically, the first rotation shaft part 82d of the inner first rotation part 82a is disposed so as to be inserted into a first insertion hole (not shown) formed in the first transmission part 101 and is connected to the first rotation shaft part 82d by a fixture or the like.

[0059] (Configuration - vibration suppression system - vibration suppression unit - distance adjustment unit - transmission unit - second transmission unit) Returning to FIG. 3 , the second transmission part 102 is another part of the basic structure of the transmission part 100. This second transmission part 102 is configured using, for example, a known gear material, and specifically, the second transmission part 102 is configured using a gear material that can set the diameter of the second rotation body 92c of the second transmission part 102 to a size that is larger than the diameter of the second rotation body 92c of the inner second rotation part 92a and can abut against the first transmission part 101 (more specifically, a size that is substantially the same as the diameter of the first rotation body 82c of the first transmission part 101). Also, as shown in FIGS. 3 and 5 , the second transmission part 102 is provided near the inner second rotation part 92a so as to be rotatable in response to rotation of the second rotation shaft part 92d of the inner second rotation part 92a, and is provided at a position that can abut against the first transmission part 101. Specifically, the second rotation shaft portion 92d of the inner second rotation portion 92a is arranged to be inserted into a second insertion hole (not shown) formed in the second transmission portion .

[0060] (Configuration - vibration suppression system - vibration suppression unit - distance adjustment unit - first mounting position adjustment unit) The first mounting position adjustment unit 110 is a first mounting position adjustment means for adjusting the mounting position of at least one of the pair of guide rollers 30 (specifically, the mounting position of the second guide roller 32). As shown in Fig. 5 , the first mounting position adjustment unit 110 is provided on the second transmission unit 102 and is configured to be able to change the phase between the second rotation shaft portion 92d of the second turning unit 92 and the second transmission unit 102. Specifically, the first mounting position adjustment unit 110 includes an engaging portion 111 and an engaged portion 112.

[0061] (Configuration - vibration suppression system - vibration suppression unit - distance adjustment unit - first mounting position adjustment unit - engagement unit) The engaging portion 111 is an engaging means that engages with the engaged portion 112 to restrict rotation of the second transmission portion 102 relative to the second rotation shaft portion 92d. The engaging portion 111 is configured as an engaging hole formed in the second transmission portion 102, and as shown in Fig. 5, a plurality of engaging portions 111 are provided in the second transmission portion 102 near the second insertion hole.

[0062] (Configuration—vibration suppression system—vibration suppression unit—distance adjustment unit—first mounting position adjustment unit—engaged unit) The engaged portions 112 are engaged means that engage with the engaging portions 111 in order to restrict the rotation of the second transmission portion 102 relative to the second rotating shaft portion 92d. The engaged portions 112 are formed using, for example, a known wedge material, and as shown in Fig. 5, are detachably inserted into the respective engaging portions 111 (i.e., a plurality of engaged portions 112 are provided), thereby restricting the rotation of the second transmission portion 102.

[0063] The first mounting position adjustment unit 110 described above makes it possible to adjust the mounting position of the second guide roller 32, thereby improving the ease of installation of the pair of guide rollers 30. In particular, in the embodiment, by rotating the second transmission unit 102 relative to the second rotating shaft unit 92d with all of the engaged units 112 detached from the corresponding engaging units 111, the phase between the second rotating shaft unit 92d and the second transmission unit 102 can be changed, and therefore the mounting position of the second guide roller 32 can be easily adjusted.

[0064] The distance adjustment unit 70 as described above can be configured relatively easily, and the manufacturability of the distance adjustment unit 70 can be improved.

[0065] (Configuration - Vibration suppression system - Vibration suppression unit - Distance adjustment unit - Specific operation) Furthermore, the specific operations of distance adjustment unit 70 are arbitrary, but in the embodiment, they are broadly divided into a first operation, a second operation, and a third operation, and the details of each operation will be described below.

[0066] (Configuration - Vibration suppression system - Vibration suppression unit - Distance adjustment unit - Specific operation - Operation 1) First, the first operation will be described.

[0067] The first action means that when one of the pair of guide rollers 30 moves horizontally in one of the horizontal directions (left and right directions in Figure 6), the mutual distance between the pair of guide rollers 30 increases.

[0068] For example, as shown in Figure 6, when the first guide roller 31 receives an external force P in the left direction and attempts to move horizontally to the left, the first moving part 81 rotates (rotates clockwise in Figure 6) in conjunction with the horizontal movement, causing the two first rotating parts 82 and the first transmission part 101 to rotate.

[0069] Next, as the first transmission part 101 rotates, the external force P acts on the second transmission part 102 (i.e., the force received by the first support part 80 via the first guide roller 31 acts on the second support part 90), causing the second transmission part 102 to rotate.

[0070] When the inner second rotating part 92a rotates in conjunction with the rotation of the second transmission part 102, the second moving part 91 rotates (counterclockwise in Figure 6), and the outer second rotating part 92b rotates, causing the second guide roller 32 to move horizontally to the right, thereby increasing the mutual distance between the pair of guide rollers 30 (note that the same applies to the operation when the second guide roller 32 is subjected to an external force P in the right direction).

[0071] (Configuration - Vibration suppression system - Vibration suppression unit - Distance adjustment unit - Specific operation - Second operation) Next, the second operation will be described.

[0072] The second action means that when one of the pair of guide rollers 30 moves horizontally in the other of the horizontal directions, the mutual distance between the pair of guide rollers 30 is narrowed.

[0073] For example, as shown in Figure 7, when the first guide roller 31 receives an external force P in the right direction and attempts to move horizontally to the right, the first moving part 81 rotates (counterclockwise in Figure 7) in conjunction with the horizontal movement, causing the two first rotating parts 82 and the first transmission part 101 to rotate.

[0074] Next, due to the rotation of the first transmission part 101, the external force P acts on the second transmission part 102, causing the second transmission part 102 to rotate.

[0075] When the inner second rotating part 92a rotates in conjunction with the rotation of the second transmission part 102, the second moving part 91 rotates (clockwise in Figure 7), and the outer second rotating part 92b rotates, causing the second guide roller 32 to move horizontally to the left, thereby narrowing the mutual distance between the pair of guide rollers 30 (note that the same applies to the operation when the second guide roller 32 is subjected to an external force P in the left direction).

[0076] (Configuration - Vibration suppression system - Vibration suppression unit - Distance adjustment unit - Specific operation - Third operation) Next, the third operation will be described.

[0077] The third action means that when the pair of guide rollers 30 are subjected to the horizontal external force P, the pair of guide rollers 30 operate to maintain the mutual distance between them.

[0078] For example, as shown in Figure 8, when each of the first guide roller 31 and the second guide roller 32 receives an external force P in the right direction and attempts to move horizontally to the right, the first moving part 81 rotates (counterclockwise in Figure 8) in conjunction with the horizontal movement of the first guide roller 31, causing the two first rotating parts 82 and the first transmission part 101 to rotate, and the second moving part 91 rotates (clockwise in Figure 8) in conjunction with the horizontal movement of the second guide roller 32, causing the two second rotating parts 92 and the second transmission part 102 to rotate.

[0079] In this case, the rotation of the first transmission part 101 and the rotation of the second transmission part 102 are offset (that is, the external force P received by the first guide roller 31 and the external force P received by the second guide roller 32 are offset), so the rotation of the first moving part 81 and the rotation of the two first rotating parts 82 are stopped, and the rotation of the second moving part 91 and the rotation of the two second rotating parts 92 are stopped. This restricts the horizontal movement of the pair of guide rollers 30, so the mutual distance between the pair of guide rollers 30 is maintained (note that the same applies to the operation when each of the first guide roller 31 and the second guide roller 32 is subjected to an external force P in the left direction).

[0080] (Configuration - Vibration suppression system - Vibration suppression unit - Support unit) Returning to Fig. 3, the support part 120 is a support means for supporting the distance adjustment part 70. This support part 120 is configured as a long steel box-shaped body with a substantially open front end. Specifically, as shown in Figs. 3 and 4, it includes a left support piece 121 located on the left side, a right support piece 122 located on the right side, a rear support piece 123 located on the rear side, an upper support piece 124 located on the upper side, and a lower support piece 125 located on the lower side.

[0081] 1, the support part 120 is provided between the distance adjustment part 70 and the lifting target 10. Specifically, the front end of the support part 120 is provided to abut against the mounting parts 50 attached to the first guide part 83 and the second guide part 93, respectively, and the rear support piece 123 is provided to abut against the rear lifting surface part 14. The support part 120 is connected to each of the first guide part 83, the second guide part 93, and the lifting target 10 by a fixture or the like.

[0082] With this vibration suppression system 20, the mutual distance can be changed when either one of the pair of guide rollers 30 moves in either direction in the horizontal direction. This makes it possible to absorb errors in the mutual distance between the pair of guide rails 1, thereby improving the usability of the vibration suppression system 20. Furthermore, when the pair of guide rollers 30 are subjected to the horizontal external force P via the corresponding guide rail 1, the mutual distance can be maintained. Therefore, because both of the pair of guide rollers 30 can receive the horizontal external force P, it is possible to avoid excessively increasing the strength of the pair of guide rollers 30, and the manufacturability of the vibration suppression system 20 can be improved.

[0083] (About the function of the vibration suppression system) Next, the operation of the vibration suppression system 20 configured in this manner will be described.

[0084] The actions of the vibration suppression system 20 are roughly divided into an installation action, a lifting / lowering action, a first vibration action, and a second vibration action, and each action will be described in detail below.

[0085] (Operation of the vibration suppression system 20 - Installation operation) First, the installation operation will be described.

[0086] The installation operation refers to the operation when the pair of guide rollers 30 are installed on the pair of guide rails 1.

[0087] For example, when installing a pair of guide rollers 30 on a pair of guide rails 1, if the mutual distance between the pair of guide rollers 30 is shorter than the mutual distance between the pair of guide rails 1, applying human force or the like in either of the horizontal directions (specifically, left and right directions) to one of the pair of guide rollers 30 will cause the distance adjustment unit 70 to perform a first operation, thereby widening the mutual distance between the pair of guide rollers 30. In this way, by adjusting the mutual distance between the pair of guide rollers 30, the pair of guide rollers 30 can be installed so as to fit the pair of guide rails 1.

[0088] Furthermore, if the mutual distance between the pair of guide rollers 30 is longer than the mutual distance between the pair of guide rails 1, applying human force or the like to either one of the pair of guide rollers 30 in the horizontal direction causes the distance adjustment unit 70 to perform the second operation, thereby narrowing the mutual distance between the pair of guide rollers 30. In this way, by adjusting the mutual distance between the pair of guide rollers 30, the pair of guide rollers 30 can be installed so as to fit onto the pair of guide rails 1.

[0089] (About the action of the vibration suppression system - vertical movement action) Next, the lifting action will be described.

[0090] The lifting action refers to the action when the lifting target 10 is lifted or lowered using a hoist in a state where the pair of guide rollers 30 are installed on the pair of guide rails 1.

[0091] For example, when using a hoist to raise and lower the object 10 to be lifted and lowered, the first roller body 41 of each of the pair of guide rollers 30 slides on the connecting rail piece of the corresponding guide rail 1, thereby allowing the object 10 to be lifted and lowered approximately along the wall portion.

[0092] (About the Action of the Vibration Suppression System - Vibration Action 1) Next, the first swinging action will be described.

[0093] The first swinging action refers to an action that occurs when the lifting target 10 suspended by the hoist swings left and right in a state in which the pair of guide rollers 30 are installed on the pair of guide rails 1.

[0094] For example, when a wind force acts on the lifting target 10 in the right direction, the lifting target 10 moves horizontally to the right, and the pair of guide rollers 30 also move horizontally to the right.

[0095] In this case, if the distance between the second roller body 42 of the first guide roller 31 and the right rail piece of the first guide rail 1a is equal to the distance between the second roller body 42 of the second guide roller 32 and the right rail piece of the second guide rail 1b, the second roller body 42 of the first guide roller 31 will come into contact with the right rail piece of the first guide rail 1a and the second roller body 42 of the second guide roller 32 will come into contact with the right rail piece of the second guide rail 1b simultaneously, causing the distance adjustment unit 70 to perform the third operation and maintaining the mutual distance between the pair of guide rollers 30. As a result, both of the pair of guide rollers 30 will receive the wind force, thereby suppressing lateral shaking of the object 10 to be lifted or lowered (note that the same applies to the case where a wind force acts on the object 10 to be lifted or lowered in the leftward direction).

[0096] Furthermore, if the distance between the second roller body 42 of the first guide roller 31 and the right rail piece of the first guide rail 1a and the distance between the second roller body 42 of the second guide roller 32 and the right rail piece of the second guide rail 1b are not equal, the distance adjustment unit 70 performs a first operation (or a second operation) after either the second roller body 42 of the first guide roller 31 comes into contact with the right rail piece of the first guide rail 1a or the second roller body 42 of the second guide roller 32 comes into contact with the right rail piece of the second guide rail 1b. Thereafter, when either the second roller body 42 of the first guide roller 31 comes into contact with the right rail piece of the first guide rail 1a or the second roller body 42 of the second guide roller 32 comes into contact with the right rail piece of the second guide rail 1b, the distance adjustment unit 70 performs a third operation, thereby maintaining the mutual distance between the pair of guide rollers 30. As a result, just as when the distance between the second roller body 42 of the first guide roller 31 and the right rail piece of the first guide rail 1a is equal to the distance between the second roller body 42 of the second guide roller 32 and the right rail piece of the second guide rail 1b, both of the pair of guide rollers 30 receive the above-mentioned wind force, thereby suppressing left-right shaking of the object 10 to be lifted and lowered (note that the same applies when a wind force acts on the object 10 to be lifted and lowered in the left direction).

[0097] (About the Action of the Vibration Suppression System - Second Vibration Action) Next, the second shaking action will be described.

[0098] The second swinging action refers to the action that occurs when the lifting target 10 suspended by the hoist swings back and forth in a state in which the pair of guide rollers 30 are installed on the pair of guide rails 1.

[0099] For example, when a forward wind force acts on the object 10 to be lifted or lowered, the object 10 moves horizontally forward, and as a result, the pair of guide rollers 30 also move horizontally forward. In this case, the first roller body 41 of each of the pair of guide rollers 30 comes into contact with the connecting rail piece of the corresponding guide rail 1, and therefore both of the pair of guide rollers 30 receive the wind force, thereby suppressing the forward or backward shaking of the object 10 to be lifted or lowered.

[0100] Furthermore, when a rearward wind force acts on the object 10 to be lifted or lowered, the pair of guide rollers 30 also move horizontally rearward as the object 10 to be lifted or lowered moves horizontally rearward. In this case, the first roller body 41 of each of the pair of guide rollers 30 comes into contact with the suppression rail piece of the corresponding guide rail 1, and therefore both of the pair of guide rollers 30 receive the wind force, thereby suppressing the forward / backward shaking of the object 10 to be lifted or lowered.

[0101] (Effects of the embodiment) As described above, according to the embodiment, the vibration suppression unit 60 changes the mutual distance between the pair of guide rollers 30 by horizontally moving the other of the pair of guide rollers 30 in the other horizontal direction when one of the pair of guide rollers 30 moves horizontally in the other horizontal direction, and the distance adjustment unit 70 maintains the mutual distance by restricting the horizontal movement of the pair of guide rollers 30 when the pair of guide rollers 30 are subjected to a horizontal external force via the corresponding guide rail 1. Therefore, the mutual distance can be changed when one of the pair of guide rollers 30 moves in the horizontal direction. This can absorb errors in the mutual distance between the pair of guide rails 1, improving the usability of the vibration suppression system 20. Furthermore, the mutual distance can be maintained when the pair of guide rollers 30 are subjected to the horizontal external force via the corresponding guide rail 1. Therefore, because both of the pair of guide rollers 30 can withstand the horizontal external force, it is possible to avoid excessively increasing the strength of the pair of guide rollers 30 and improve the manufacturability of the vibration suppression system 20.

[0102] Furthermore, the distance adjustment unit 70 comprises a first support portion 80 that supports one of the pair of guide rollers 30 so that it can move horizontally in the horizontal direction, a second support portion 90 that supports the other of the pair of guide rollers 30 so that it can move horizontally in the horizontal direction, and a transmission portion 100 that, when one of the pair of guide rollers 30 moves horizontally in either of the horizontal directions, causes the force that the first support portion 80 receives through one of the pair of guide rollers 30 to act on the second support portion 90, and that, when the pair of guide rollers 30 each receive a horizontal external force through the corresponding guide rail 1, cancels out the force that the first support portion 80 receives through one of the pair of guide rollers 30 and the force that the second support portion 90 receives through the other of the pair of guide rollers 30.Therefore, the distance adjustment unit 70 can be constructed relatively simply, and the manufacturability of the distance adjustment unit 70 can be improved.

[0103] In addition, since the distance adjustment unit 70 is equipped with a first mounting position adjustment unit 110 for adjusting the mounting position of at least one of the pair of guide rollers 30, the mounting position of the second guide roller 32 can be adjusted, thereby improving the ease of installation of the pair of guide rollers 30.

[0104] Furthermore, at least one of the pair of guide rollers 30 comprises a guide roller main body 40 and an attachment portion 50 for attaching the guide roller main body 40 to the distance adjustment portion 70, and the attachment portion 50 supports the guide roller main body 40 so that it can rotate freely.Therefore, the guide roller main body 40 can be rotated by the attachment portion 50, and this rotation can be used to absorb errors in the mutual distance between the pair of guide rails 1.

[0105] [III] Modifications to the embodiment Although the embodiments of the present invention have been described above, the specific configurations and means of the present invention can be modified and improved as desired within the scope of the technical ideas of the inventions set forth in the claims. Such modifications will be described below.

[0106] (About the problem to be solved and the effects of the invention) First, the problems that the invention aims to solve and the effects of the invention are not limited to those described above, and the present invention may solve problems that are not described above or achieve effects that are not described above, or may solve only some of the problems that are described or achieve only some of the effects that are described.

[0107] (shape, numbers, structure, time series) The components illustrated in the embodiments and drawings may be modified and improved as desired within the scope of the technical concept of the present invention in terms of shape, numerical value, or the structure or chronological relationship of multiple components.

[0108] (About vibration suppression systems) In the above embodiment, the vibration suppression system 20 has been described as including a pair of guide rollers 30 and a vibration suppression unit 60, but this is not limiting. For example, as shown in Fig. 9, in addition to the pair of guide rollers 30 and the vibration suppression unit 60, a second mounting position adjustment unit 130 may be further included.

[0109] The second mounting position adjustment unit 130 is a second mounting position adjustment means for adjusting the mounting position of the vibration suppression unit 60. As shown in Fig. 9, the second mounting position adjustment unit 130 is provided between the support unit 120 and the lifting target 10, and includes an adjustment guide unit 131, an adjustment roller unit 132, and a movement limiting unit (not shown).

[0110] Of these, adjustment guide portion 131 is intended to guide the movement of vibration suppression portion 60 when adjusting the mounting position of vibration suppression portion 60. This adjustment guide portion 131 is configured using, for example, a known guide material (one example is a long guide material with a substantially U-shaped cross section), and as shown in Fig. 9, is provided between support portion 120 and lifting object 10 so that the longitudinal direction of adjustment guide portion 131 is substantially along the left-right direction, and is fixed to front lifting surface portion 13 of lifting object 10 by a fixture or the like.

[0111] The adjustment roller portion 132 is used to slide the vibration suppression portion 60 in the adjustment guide portion 131. The adjustment roller portion 132 is made of, for example, a known roller material, and as shown in Fig. 9, a plurality of adjustment roller portions 132 are arranged side by side at intervals from each other along the longitudinal direction of the support portion 120 (the left-right direction in Fig. 9) in each of the upper support piece 124 and the lower support piece 125 of the support portion 120, and are provided so as to be fitted into the adjustment guide portion 131, and are connected to the upper support piece 124 or the lower support piece 125 by a fixture, welding, or the like.

[0112] The movement limiting portion is a movement limiting means that limits the sliding movement of the vibration suppressing portion 60. This movement limiting portion is configured using, for example, a known movement limiting material (e.g., a pin material, a friction brake material, etc.), and is detachably provided between the adjustment guide portion 131 and the upper support piece 124 and / or the lower support piece 125 of the support portion 120.

[0113] Such second mounting position adjustment section 130 releases the restriction on the sliding movement of the vibration suppression section 60 imposed by the movement restriction section, thereby allowing the vibration suppression section 60 to slide. This makes it possible to adjust the mounting position of the vibration suppression section 60, thereby improving the ease of installation of the vibration suppression section 60.

[0114] (Guide rollers) In the above embodiment, the guide roller 30 is described as having an attachment portion 50 that can support the guide roller main body 40 so that it can rotate freely, but this is not limited to this, and for example, the guide roller 30 may be provided with an attachment portion 50 that can support the guide roller main body 40 so that it cannot rotate.

[0115] (Regarding the distance adjustment section) In the above embodiment, the distance adjustment unit 70 is described as including the first attachment position adjustment unit 110 provided on the second transmission unit 102, but this is not limiting. For example, the distance adjustment unit 70 may further include the first attachment position adjustment unit 110 provided on the first transmission unit 101, or the first attachment position adjustment unit 110 may be omitted.

[0116] In addition, in the above embodiment, it was described that the first support part 80 includes a first moving part 81, a first rotating part 82, and a first guide part 83, the second support part 90 includes a second moving part 91, a second rotating part 92, and a second guide part 93, and the transmission part includes a first transmission part 101 and a second transmission part 102, but this is not limited to this.

[0117] 10 , the first support portion 80 may be formed of, for example, a known long rack member, and may be disposed so that the longitudinal direction of the first support portion 80 is along the left-right direction. The second support portion 90 may be formed of, for example, a known long rack member, and may be disposed so that the longitudinal direction of the second support portion 90 is along the left-right direction, and may be provided so as to be located rearward of the first support portion 80. The transmission portion 100 may be formed of, for example, a known pinion member, and may be provided between the first support portion 80 and the second support portion 90 so as to abut against each of the first support portion 80 and the second support portion 90.

[0118] 11, the first support part 80 and the second support part 90 are formed of, for example, a known ball screw member and are provided at a distance from each other in the left-right direction. The transmission part 100 may include a first transmission part 101 (for example, a known right-handed screw member) inserted into the first support part 80, a second transmission part 102 (for example, a known left-handed screw member) inserted into the second support part 90, and a connecting part 103 that connects the right-handed screw member and the left-handed screw member.

[0119] (Addendum) The sway suppression system of Appendix 1 is a pair of long guide rails attached to a wall portion of a building, and is a sway suppression system for suppressing swaying of an object to be lifted or lowered when the object to be lifted or lowered is raised or lowered via a pair of guide rails that are respectively attached to the wall portion so that the longitudinal directions of the guide rails are approximately along the up-down direction, the sway suppression system comprising: a pair of guide rollers attached to the object to be lifted or lowered, each of the pair of guide rollers being arranged so that each of the pair of guide rollers is guided by a corresponding guide rail; and sway suppression means for suppressing swaying of the object to be lifted or lowered while supporting each of the pair of guide rollers so that it can move horizontally in a horizontal direction approximately along the wall portion, the sway suppression means comprising distance adjustment means for changing the mutual distance between the pair of guide rollers when one of the pair of guide rollers moves horizontally in one of the horizontal directions, by moving the other of the pair of guide rollers in the other of the horizontal directions, and for maintaining the mutual distance when the pair of guide rollers are each subjected to an external force in the horizontal direction via the corresponding guide rail.

[0120] The vibration suppression system of Appendix 2 is the vibration suppression system described in Appendix 1, wherein the distance adjustment means comprises first support means that supports one of the pair of guide rollers so that it can move horizontally in the horizontal direction, second support means that supports the other of the pair of guide rollers so that it can move horizontally in the horizontal direction, and transmission means that, when one of the pair of guide rollers moves horizontally in one of the horizontal directions, causes the force that the first support means receives through one of the pair of guide rollers to act on the second support means, and that, when the pair of guide rollers each receive an external force in the horizontal direction through the corresponding guide rail, cancels out the force that the first support means receives through one of the pair of guide rollers and the force that the second support means receives through the other of the pair of guide rollers.

[0121] The vibration suppression system of Supplementary Note 3 is the vibration suppression system of Supplementary Note 2, wherein the distance adjustment means includes first mounting position adjustment means for adjusting the mounting position of at least one of the pair of guide rollers.

[0122] The vibration suppression system of Appendix 4 is a vibration suppression system described in any one of Appendixes 1 to 3, wherein at least one of the pair of guide rollers comprises a guide roller body and an attachment means for attaching the guide roller body to the distance adjustment means and for supporting the guide roller body so as to be freely rotatable.

[0123] The vibration suppression system of Supplementary Note 5 is the vibration suppression system according to any one of Supplementary Notes 1 to 4, further comprising a second mounting position adjustment means for adjusting the mounting position of the vibration suppression means.

[0124] (Effect of supplementary notes) According to the vibration suppression system described in Supplementary Note 1, the vibration suppression means includes a distance adjustment means that, when one of the pair of guide rollers moves horizontally in one of the horizontal directions, moves the other of the pair of guide rollers horizontally in the other of the horizontal directions, thereby changing the mutual distance between the pair of guide rollers, and that, when the pair of guide rollers are subjected to a horizontal external force via the corresponding guide rail, restricts the horizontal movement of the pair of guide rollers, thereby maintaining the mutual distance. Therefore, the mutual distance can be changed when one of the pair of guide rollers moves in one of the horizontal directions. This allows for absorbing errors in the mutual distance between the pair of guide rails, improving the usability of the vibration suppression system. Furthermore, the mutual distance can be maintained when the pair of guide rollers are subjected to the horizontal external force via the corresponding guide rail. Therefore, because both of the pair of guide rollers can withstand the horizontal external force, it is possible to avoid excessively increasing the strength of the pair of guide rollers, improving the manufacturability of the vibration suppression system.

[0125] According to the vibration suppression system described in Appendix 2, the distance adjustment means comprises a first support means that supports one of the pair of guide rollers so that it can move horizontally in the horizontal direction, a second support means that supports the other of the pair of guide rollers so that it can move horizontally in the horizontal direction, and a transmission means that, when one of the pair of guide rollers moves horizontally in one of the horizontal directions, causes the force that the first support means receives through one of the pair of guide rollers to act on the second support means, and that cancels out the force that the first support means receives through one of the pair of guide rollers and the force that the second support means receives through the other of the pair of guide rollers when the pair of guide rollers each receive a horizontal external force through the corresponding guide rail.Therefore, the distance adjustment means can be constructed relatively simply, and the manufacturability of the distance adjustment means can be improved.

[0126] According to the vibration suppression system described in Appendix 3, the distance adjustment means is equipped with a first mounting position adjustment means for adjusting the mounting position of at least one of the pair of guide rollers, so that the mounting position of the second guide roller can be adjusted, thereby improving the ease of installation of the pair of guide rollers.

[0127] According to the vibration suppression system described in Appendix 4, at least one of the pair of guide rollers comprises a guide roller body and an attachment means for attaching the guide roller body to the distance adjustment means, which is an attachment means for rotatably supporting the guide roller body. Therefore, the guide roller body can be rotated by the attachment means, and this rotation can be used to absorb errors in the mutual distance between the pair of guide rails.

[0128] According to the vibration suppression system described in Appendix 5, a second mounting position adjustment means is provided for adjusting the mounting position of the vibration suppression means, so that the mounting position of the vibration suppression means can be adjusted, thereby improving the ease of installation of the vibration suppression means. [Explanation of symbols]

[0129] 1 guide rail 1a First guide rail 1b Second guide rail 10. Elevation target 11 Left side lifting surface 12 Right side lifting surface section 13 Front lifting surface 14 Rear lifting surface 15 Bottom lifting surface 16 Hanging member connection 20. Vibration suppression system 30 Guide roller 31 First guide roller 32 Second guide roller 40 Guide roller body 41 First roller body 42 Second roller body 43 First main body part 44 Second main body part 50 Mounting part 51 First mounting part 52 Second mounting part 60 Vibration suppression unit 70 Distance adjustment section 80 1st support part 81 First Mobile Section 82 First rotating part 82a Inner first rotating part 82b Outside first rotating part 82c First rotating body 82d First rotating shaft 82e First support member 83 First guide section 90 Second support part 91 Second Mobile Section 92 Second rotating part 92a Inner second rotating part 92b Outside 2nd rotating part 92c Second rotating body 92d Second rotating shaft 92e Second support member 93 Second guide section 100 Transmission unit 101 First Transmission Section 102 Second Transmission Section 103 Connection part 110 First mounting position adjustment part 111 Joint 112 quilt closure 120 Support Department 121 Left support piece 122 Right support piece 123 rear support plate 124 Upper support plate 125 lower support plate 130 Second pickup position adjustment unit 131 Adjustment parts 132 Adjustment part P external force

Claims

1. A vibration suppression system for suppressing vibration of an object to be lifted or lowered when the object is lifted or lowered via a pair of long guide rails attached to a wall portion of a building, the pair of guide rails being respectively provided on the wall portion such that the longitudinal directions of the guide rails are approximately along the up-down direction, a pair of guide rollers provided on the lifting target, the pair of guide rollers being arranged so as to be guided by a corresponding guide rail; a vibration suppressing means for suppressing vibration of the object to be lifted and lowered while supporting each of the pair of guide rollers so as to be horizontally movable in a horizontal direction substantially along the wall portion, The vibration suppression means is a distance adjusting means for changing the mutual distance between the pair of guide rollers by horizontally moving the other of the pair of guide rollers in the other of the horizontal directions when one of the pair of guide rollers moves horizontally in one of the horizontal directions, and for maintaining the mutual distance by restricting the horizontal movement of the pair of guide rollers when each of the pair of guide rollers receives an external force in the horizontal direction in the same direction via the corresponding guide rail, The distance adjustment means a first support means for supporting one of the pair of guide rollers so as to be horizontally movable in the horizontal direction; a second support means for supporting the other of the pair of guide rollers so as to be horizontally movable in the horizontal direction; a transmission means for applying a force received by the first support means via one of the pair of guide rollers to the second support means when one of the pair of guide rollers moves horizontally in one of the horizontal directions, and for canceling out a force received by the first support means via one of the pair of guide rollers and a force received by the second support means via the other of the pair of guide rollers when each of the pair of guide rollers receives an external force in the horizontal direction in the same direction via the corresponding guide rail. Sway suppression system.

2. A vibration suppression system for suppressing the vibration of an object to be lifted or lowered when the object is lifted or lowered via a pair of long guide rails attached to a wall portion of a building, the pair of guide rails being respectively provided on the wall portion so that the longitudinal direction of the guide rails is approximately along the up-down direction, a pair of guide rollers provided on the lifting target, the pair of guide rollers being arranged so as to be guided by a corresponding guide rail; a vibration suppressing means for suppressing vibration of the object to be lifted and lowered while supporting each of the pair of guide rollers so as to be horizontally movable in a horizontal direction substantially along the wall portion, The vibration suppression means is a distance adjusting means for changing the mutual distance between the pair of guide rollers by horizontally moving the other of the pair of guide rollers in the other of the horizontal directions when one of the pair of guide rollers moves horizontally in one of the horizontal directions, and for maintaining the mutual distance by limiting the horizontal movement of the pair of guide rollers when the pair of guide rollers are each subjected to an external force in the horizontal direction via the corresponding guide rail; The distance adjustment means a first support means for supporting one of the pair of guide rollers so as to be horizontally movable in the horizontal direction; a second support means for supporting the other of the pair of guide rollers so as to be horizontally movable in the horizontal direction; a transmission means for applying a force received by the first support means via one of the pair of guide rollers to the second support means when one of the pair of guide rollers moves horizontally in one of the horizontal directions, and for canceling out a force received by the first support means via one of the pair of guide rollers and a force received by the second support means via the other of the pair of guide rollers when the pair of guide rollers receive external forces in the horizontal direction via the corresponding guide rail, The distance adjusting means includes a first mounting position adjusting means for adjusting the mounting position of at least one of the pair of guide rollers. Sway suppression system.

3. A vibration suppression system for suppressing the vibration of an object to be lifted or lowered when the object is lifted or lowered via a pair of long guide rails attached to a wall portion of a building, the pair of guide rails being respectively provided on the wall portion so that the longitudinal direction of the guide rails is approximately along the up-down direction, a pair of guide rollers provided on the lifting target, the pair of guide rollers being arranged so as to be guided by a corresponding guide rail; a vibration suppressing means for suppressing vibration of the object to be lifted and lowered while supporting each of the pair of guide rollers so as to be horizontally movable in a horizontal direction substantially along the wall portion, The vibration suppression means is a distance adjusting means for changing the mutual distance between the pair of guide rollers by horizontally moving the other of the pair of guide rollers in the other of the horizontal directions when one of the pair of guide rollers moves horizontally in one of the horizontal directions, and for maintaining the mutual distance by limiting the horizontal movement of the pair of guide rollers when the pair of guide rollers are each subjected to an external force in the horizontal direction via the corresponding guide rail; At least one of the pair of guide rollers is A guide roller body, and an attachment means for attaching the guide roller body to the distance adjustment means, the attachment means supporting the guide roller body so as to be rotatable. Sway suppression system.

4. A vibration suppression system for suppressing the vibration of an object to be lifted or lowered when the object is lifted or lowered via a pair of long guide rails attached to a wall portion of a building, the pair of guide rails being respectively provided on the wall portion so that the longitudinal direction of the guide rails is approximately along the up-down direction, a pair of guide rollers provided on the lifting target, the pair of guide rollers being arranged so as to be guided by a corresponding guide rail; a vibration suppressing means for suppressing vibration of the object to be lifted and lowered while supporting each of the pair of guide rollers so as to be horizontally movable in a horizontal direction substantially along the wall portion, The vibration suppression means is a distance adjusting means for changing the mutual distance between the pair of guide rollers by horizontally moving the other of the pair of guide rollers in the other of the horizontal directions when one of the pair of guide rollers moves horizontally in one of the horizontal directions, and for maintaining the mutual distance by limiting the horizontal movement of the pair of guide rollers when the pair of guide rollers are each subjected to an external force in the horizontal direction via the corresponding guide rail; a second mounting position adjusting means for adjusting the mounting position of the vibration suppression means; Sway suppression system.

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