JP6579909B2 - Rail bearing device - Google Patents

Description

  The present invention relates to a crane garter that supports a rail laid so that a crane traveling body that lifts and conveys a suspended load travels in one direction on the upper surface of the rail, and on which the rail is placed and extends in the same direction as the rail. The present invention relates to a rail support device having a rail, a rail support device, a crane traveling body, and a crane device including a rail.

  2. Description of the Related Art Conventionally, a building such as a power generation facility, a factory, or a warehouse is provided with a crane device for transporting suspended loads such as parts constituting facilities or facilities in the facility or luggage in the warehouse. In general, a crane garter is installed in a building as a rail support device in a building, a rail is laid on the crane garter, and a crane traveling body that lifts a suspended load travels on the top surface of the rail. It is supposed to be configured.

  By the way, when the above building needs to be extended, the crane device used for the extension part needs to be newly installed for the crane garter as the rail support device, but the crane traveling body is an existing building. It would be desirable to be able to use what was used in new buildings. FIG. 14 is a diagram schematically showing a crane apparatus 100 provided in such a conventional extended building B. As shown in FIG. The building B shown in FIG. 14 has an existing first building part B1 and a new second building part B2. These 1st building part B1 and 2nd building part B2 are cut | disconnected (edge-cut) on the structure, and it is set as the structure where one vibration does not influence the other. The crane apparatus 100 includes a first crane gutter 210 installed in the first building part B1 as a rail support apparatus, and a second crane gutter 220 installed in the second building part B2 on an extension line of the first crane gutter 210. The common rail 300 is laid on the upper surfaces of the first crane garter 210 and the second crane garter 220, and the upper surface of the rail 300 is guided to the rail 300 by the crane traveling body 400 in the left-right direction (X direction). ) To move to. The crane traveling body 400 has a beam portion (not shown) extending in the depth direction of the paper, and a trolley (not shown) traveling on the crane traveling body has a hook F for lifting a suspended load, for example. The crane traveling body 400 travels on the rail 300 while suspending the suspended load on the hook F, thereby conveying the suspended load.

  When extending a crane gutter, a structure is known in which the crane gutters are connected to each other within the same building (Patent Document 1). However, when the crane garter is extended between the structures that are separated from each other, as shown in FIG. 14, between the end portion 210 </ b> T of the first crane garter 210 and the end portion 220 </ b> T of the second crane garter 220. The gap S is provided so as not to collide even when the first crane gutter 210 and the second crane gutter 220 are displaced relative to each other. The cause of the relative displacement between the first crane garter 210 and the second crane garter 220 includes deformation due to heat, etc., but the first building part B1 and the second building part in the event of a typhoon or an earthquake occur. This is largely due to the difference in shaking with B2. Even when a relative displacement between the first crane garter 210 and the second crane garter 220 occurs due to a typhoon or a shaking of the building in the event of an earthquake, the gap S is not between the first crane garter 210 and the second crane garter 220. Is provided to prevent collisions.

JP 2000-211881 A

  However, the relative displacement between the first crane garter 210 and the second crane garter 220 in the event of a typhoon or an earthquake is the difference in shaking due to the difference in structure between the first building part B1 and the second building part B2. In the case of an earthquake, it may differ depending on the difference in the magnitude of the expected shaking of the ground G on which the building B is built (difference whether the ground G is a rock or a landfill). Therefore, as shown in FIG. 15, when the estimated value in the X direction of the relative displacement expected in the building is Δx as a result of considering different conditions, the first crane garter 210 and the second crane garter 220 Is set so that S> Δx, so that the first crane garter 210 and the second crane garter 220 do not collide reliably. However, in some cases, this S becomes too large, and the rail 300 bends so as to sink into the gap S by Δh without being able to support the weight of the crane traveling body 400 traveling on the rail 300, and the crane traveling body 400. This may cause damage that may interfere with driving. Therefore, this time, as shown in FIG. 16, the clearance S ′ is set so that the clearance S ′ <S, so that the deflection Δh ′ of the rail 300 is suppressed so as not to hinder the traveling of the crane traveling body 400. Then, this time, the clearance S ′ becomes S ′ <Δx, which is not sufficient to prevent the collision between the first crane garter 210 and the second crane garter 220 due to the relative displacement. The structure of the first building part B1 and the second building part B2 is affected by the vibration transmitted to the second crane gutter 220 due to the collision. Thus, it will take a considerable amount of time to restore the entire facility.

  In view of the above problems, the present invention prevents a mutual interference by providing a gap between two crane garters that are displaced relative to each other, and when the crane traveling body travels on a rail that is passed through the gap. An object of the present invention is to provide a rail support device and a crane device provided with the rail support device, which can suppress deformation due to rail bending or the like so that the crane traveling body can travel.

  In addition, the present invention provides a gap between a plurality of support bodies that support a rail such as a crane garter to prevent mutual interference, and when the traveling body travels on a rail that is passed through the clearance. An object of the present invention is to provide a rail support device in general that can suppress deformation due to rail deflection or the like to such an extent that the traveling body can travel.

  The present invention relates to a rail support device for supporting a rail laid so that a crane traveling body that lifts and transports a suspended load travels in an upper surface in the first direction, and the rail is placed and extends in the first direction together with the rail. The crane garter has a first crane garter and a second crane garter whose opposite ends are spaced apart from each other in the first direction. Between the ends, at least one intermediate crane garter that supports the rail on the upper surface side and is movable in the first direction is disposed, and the first crane garter, the second crane garter, and the at least one intermediate crane garter are mutually connected. A collision prevention clearance is formed between adjacent ones, and the total length in the first direction of the collision prevention clearance is at least: The expected value in the first direction of the relative displacement that can occur between one crane garter and the second crane garter is set in the first direction, and each length in the first direction of the anti-collision clearance is installed on the anti-collision clearance. It is characterized in that when the crane traveling body travels on the rail, the rail deformation is set so that the crane traveling body can travel.

  The present invention has the above-described configuration, so that even if the first crane garter and the second crane garter approach each other in the first direction due to relative displacement, the respective ends of the first crane garter and the second crane garter At least one intermediate crane garter arranged between the first crane garter, the second crane garter and the at least one intermediate crane garter formed between adjacent ones of each other Each of the anti-collision clearances shortens the distance. Here, the size of all the lengths in the first direction of the collision prevention clearance is set to at least the expected value in the first direction of the relative displacement that can occur between the first crane gutter and the second crane gutter. Therefore, even if the collision prevention clearances are reduced, if the relative displacement is within the expected range, the collision prevention clearance will remain, and the collision between the first crane garter and the second crane garter will occur. Can be prevented. On the other hand, the length of each collision prevention clearance in the first direction can be adjusted by adjusting the position and number of intermediate crane garters, even if the crane traveling body runs on the rail on the collision preventing clearance. It can be set so that the deformation of the rail can be suppressed to the extent that does not hinder the traveling of the vehicle. In short, the present invention divides one gap, which has conventionally been provided for preventing collision between crane garters, into a plurality of collision prevention clearances, and extends between the first crane garter and the second crane garter. The rail is to be supported by, or supported by, at least one intermediate crane gutter between the first crane gutter and the second crane gutter so as to prevent deformation of the rail. When the first crane garter and the second crane garter are relatively displaced so as to approach each other, the intermediate crane garter moves in the first direction, so that the respective collision prevention clearances are clogged simultaneously in parallel. The size is guaranteed to be at least as large as when one gap is formed that can prevent the collision between the first and second crane garters. Even if the clearances in the first direction are short each, the collision between the first crane gutter and the second crane gutter is prevented in the same way as when one long gap for preventing collision is provided. Can do. The length of each collision prevention clearance in the first direction differs depending on the crane's own weight, maximum suspension load, rail dimensions and material, etc. It can be set based on the deformation amount of the rail allowed for traveling. That is, if the configuration of each part of the crane device is determined, at least the length of each necessary collision prevention clearance in the first direction is also determined. In addition, the expected value in the first direction of the relative displacement that can occur between the first crane garter and the second crane garter is considered to be a plurality of possible causes of the relative displacement. It is necessary to make it the maximum possible in the place where the first crane gutter and the second crane gutter are installed in order to prevent the damage due to the collision with the two crane gutters. That is, the maximum magnitude in the first direction of the relative displacement that can occur between the first crane garter and the second crane garter is set as an expected value, and at least the first crane garter having a magnitude exceeding this expected value The size of the entire clearance to prevent a collision with the second crane gutter is determined, and an intermediate crane gutter is placed between the first crane gutter and the second crane gutter to prevent individual collision of the entire clearance. Dividing into clearances, at this time, the deformation of the rails supported by the first crane garter, the second crane garter, and the intermediate crane garter is limited to a range in which the crane traveling body can travel during traveling of the crane traveling body. The size of each collision prevention clearance is determined so that each collision prevention clearance can be obtained. Determining the number and position of the intermediate crane girder be disposed between one crane girder and a second crane girder.

  In addition to the above-described invention, the present invention includes intermediate crane garter guide means for guiding movement of the intermediate crane garter in the first direction and restricting movement in the second direction intersecting the first direction. A rail support device may be used.

  According to the configuration, while suppressing unnecessary movement of the intermediate crane garter in the second direction, the movement of the intermediate crane garter in the first direction is surely promoted, Can be reliably prevented.

  In addition to any one of the above inventions, the present invention provides an intermediate crane garter only when the force in the first direction acting on the intermediate crane garter exceeds a predetermined threshold at the time of relative displacement between the first crane garter and the second crane garter. It may be a rail bearing device provided with intermediate crane gutter movement start adjusting means that allows movement in the first direction.

  When the first crane garter and the second crane garter are subjected to a force that is relatively displaced in the first direction, the intermediate crane garter is also subjected to a force that is displaced in the first direction. If the intermediate crane garter is moved from one force to another, even if it is trivial, the time and effort for subsequent correction work will increase. According to the above configuration, the threshold value of the force at which the intermediate crane garter starts to move can be set, and the intermediate crane garter moves only when a force that really has to move the intermediate crane garter is applied. Can be adjusted. For example, when the first crane gutter and the second crane gutter are displaced relative to each other in the first direction at the time of the earthquake occurrence, the force applied to the intermediate crane gutter is small in a medium to small scale earthquake (for example, seismic intensity of about 5). Although the garter does not move, it can be adjusted so that the intermediate crane garter moves in a large-scale earthquake (for example, seismic intensity 6 or more). As such an intermediate crane garter movement start adjusting means, a mode is conceivable in which a locking piece for locking the intermediate crane garter breaks into a state in which the intermediate crane garter cannot be locked by applying a large force to the intermediate crane garter. In this case, the recovery can be done by simply returning the intermediate crane garter to its original position and replacing the damaged locking piece, and the recovery work will be completed within the same day and will not take much time. In this example, in order to set the threshold of the force at which the intermediate crane garter starts moving, the material strength such as the thickness and width of the locking piece is changed, and the force required to break the locking piece is set. It is possible to adjust. In addition, although this example is a thing of the aspect which a locking piece breaks, even if it is a thing of a mode that a locking piece falls off when the force exceeding a threshold value is added, it does not mind.

  In addition to any one of the above inventions, the present invention provides a rail mounting plate interposed between the upper surface of the intermediate crane garter and the rail, and restricts the movement of the rail mounting plate in the first direction. A rail support device provided with rail mounting plate guide means for guiding movement in the direction may be used.

  The relative displacement between the first crane garter and the second crane garter can occur not only in the first direction but also in the second direction. When the relative displacement in the second direction occurs, the intermediate crane garter that supports the rail between the first crane garter and the second crane garter allows the rail to move in the second direction. Can be distributed over a predetermined length of the rail.

  In addition to the above-described invention, the present invention provides a rail mounting plate only when the force in the second direction acting on the rail mounting plate exceeds a predetermined threshold at the time of relative displacement between the first crane gutter and the second crane gutter. The rail support device may be provided with rail mounting plate movement start adjusting means that allows movement in the second direction.

  When the first crane garter and the second crane garter are subjected to a force that is relatively displaced in the second direction, the rail is also subjected to a force that is displaced in the second direction. Of these forces, if the rails are moving on the intermediate crane garter for even a trivial one, the time and effort for the subsequent rail correction work will increase. According to the above configuration, the threshold value of the force at which the rail mounting plate to which the rail is mounted starts to move can be set, and the rail and the rail mounting plate to which the rail is mounted must be moved in the second direction. The rail mounting plate can be adjusted to move only when a force is applied to the rail mounting plate. As such a rail mounting plate movement start adjusting means, a mode in which the locking piece for locking the rail mounting plate breaks into a state where the rail mounting plate cannot be locked by applying a large force to the rail mounting plate is conceivable. In this case, the restoration only needs to return the rail mounting plate to the original position and replace the damaged locking piece, and the restoration work is completed within the same day and does not take time. In this example, in order to set the threshold of the force at which the rail mounting plate starts to move, the material strength such as the thickness and width of the locking piece is changed, and the force necessary to break the locking piece is set. It is possible to adjust. In addition, although this example is a thing of the aspect which a locking piece breaks, even if it is a thing of a mode that a locking piece falls off when the force exceeding a threshold value is added, it does not mind.

  In the present invention, in addition to any one of the above inventions, a garter extension is projected from one of the first crane garter or the second crane garter to the other, and the intermediate crane garter A rail support device may be mounted on the upper surface so as to be movable in the first direction.

  When the intermediate crane garter is arranged between the first crane garter and the second crane garter, it is supported from the building side, supported by a variable member provided between the first crane garter and the second crane garter, or first The arm can be extended from one side of either the crane garter or the second crane garter and supported by the arm, and there are various modes. If a garter extension is projected from one to the other and the intermediate garter is supported by the garter extension, the configuration is simple. As an aspect of the garter extension portion, one that projects from both sides or one side surface or the lower side surface of the first crane garter or the second crane garter can be considered. The extension part is formed integrally or separately so that the lower part protrudes from the end face side in the direction toward the end face of the other party, and the intermediate crane gutter is placed on the upper surface using gravity. Simple in construction. On the side of the crane garter, wiring necessary for driving the crane traveling body is often arranged. However, if it is on the end face side, it is not subject to such wiring restrictions and the garter extension is on the side. You can be slim as much as it does not protrude. Moreover, since the cross section can be enlarged, the strength can be secured. In particular, it is preferable in terms of strength that the crane garter and the garter extension are integrally formed. Also, when supporting the intermediate crane garter from the side by providing an arm or an extension on the side of the crane garter, when relative displacement other than the first direction, for example, relative displacement in the second direction is large There is a possibility that interference between the structure for supporting the intermediate crane garter and the crane garter may occur, but from the end face side in the first direction of the first crane garter or the second crane garter, When the extension portion is formed so as to protrude toward the end face, there is no possibility that the crane garter and the extension portion interfere with each other because there is no portion that prevents the lateral displacement of the crane garter.

  In addition to the above-described invention, the present invention provides a rail support device in which the upper surface of the garter extension is provided with a vertical movement restricting means for preventing upward movement of the intermediate crane garter from the upper surface, such as floating and jumping up. But you can.

  The first crane garter and the second crane garter may be displaced relative to each other in the vertical direction, but when the intermediate garter is placed on the upper surface of the garter extension, the first crane garter and the second crane garter are moved up and down. The displacement crane force must not cause the intermediate crane garter to leave the upper surface of the garter extension. According to the present invention, the intermediate crane garter can remain on the upper surface without being lifted or jumped from the upper surface of the garter extension by the vertical movement restricting means.

  In the present invention, in addition to the above-described invention including the garter extension, the intermediate crane garter does not move toward the other of the first crane garter or the second crane garter provided with the garter extension. In this way, a rail support device provided with pop-out prevention means may be used.

  When the intermediate crane garter moves (jumps out) toward the side of the first crane garter or the second crane garter where the garter extension is not provided, it eventually falls out of the upper surface of the garter extension and falls due to gravity. Resulting in. According to the present invention, the intermediate crane garter is prevented from dropping from the upper surface of the garter extension by preventing jumping out and only allowed to move toward the side where the garter extension is provided without fear of dropping. can do.

  In addition to the above-described invention having a garter extension, the present invention may be a rail support device in which a tilt prevention means is provided on the upper surface of the garter extension to prevent the intermediate crane garter from tilting from the upper surface.

  Of the first crane garter or the second crane garter, the first crane garter and the second crane garter are disposed between the end surface in the first direction where the garter extension is not provided and the end surface in the first direction of the garter extension. If there is a gap to prevent a collision between the two crane garters, the intermediate crane garter can be divided into the intermediate crane garter by dividing the collision prevention clearance between the first and second crane garters. The intermediate crane garter must be arranged so that part of the garter protrudes from the garter extension into the gap. At this time, the tilt prevention means can prevent the intermediate crane garter from falling from the upper surface of the garter extension portion toward the gap due to the tilt.

  According to the present invention, in addition to the above-described invention provided with the tilt preventing means, the tilt preventing means is fixed to the garter extension so as to abut on the moving wedge fixed to the intermediate crane garter and the moving wedge from above. A wedge pair consisting of a fixed wedge, which is fixed when the intermediate crane garter moves toward one of the first crane garter or the second crane garter provided with the garter extension. When the intermediate crane garter moves away from the wedge and moves toward the other side, it may be a rail support device having an inclined surface such that the moving wedge receives a downward pressing force by the fixed wedge.

  The intermediate crane garter falls toward the gap when the intermediate crane garter moves toward the first crane garter or the second crane garter where the garter extension is not provided. Sometimes, if a pressing force that can more effectively prevent tilting is applied via the inclined surface of the wedge pair, it contributes to prevention of jumping out, and further prevents tilting by utilizing the force to jump out. You can use such power. On the other hand, when the intermediate crane garter moves in the direction opposite to the protruding direction, the moving wedge and the fixed wedge are separated quickly due to the inclined surface, and friction resistance does not work between the separated surfaces. It can also contribute to smoother movement of the garter.

  The present invention includes a crane traveling body that lifts and conveys a suspended load, a rail that is laid so that the crane traveling body travels in the first direction on the upper surface, and the rail support device according to any one of the above inventions. A crane device may be used.

  In addition, in the present invention, in any one of the above inventions, the first crane garter is installed in the first building part, and the second crane garter is adjacent to the first building part in a structurally separated state. Installed in the second building, relative displacement occurs between the first crane gutter and the second crane gutter due to the difference in shaking between the first building and the second building during a typhoon or earthquake. It may be a rail bearing device or a crane device that is a displacement to be moved.

  If the first crane gata is installed in the first building and the second crane gata is installed in the second building adjacent to the first building in a structurally separated state, a typhoon or earthquake will occur Due to the difference in shaking between the first building part and the second building part at the time, etc., a considerable relative displacement may occur between the first crane gutter and the second crane gutter. It is possible to prevent a collision between the two crane gutters. The present invention is particularly advantageous when used when the relative displacement in the first direction of the first crane garter and the second crane garter is large from the structure and location conditions of the first building part and the second building part, It can be used even if relative displacements in the second direction occur at the same time, and can also have a further advantageous configuration.

  In the present invention according to the present invention, the rail may be a crane device having a portion that makes the rail discontinuous when a predetermined stress or more is applied.

  The first crane garter and the second crane garter are separated from each other at the end, while the rail is continuously laid across the first crane garter and the second crane garter, and the first crane garter is strong. Although it is not as much as when the second crane gutter is continuous, the first building part and the second building part still communicate vibrations through the rail. According to the present invention, when a large shaking occurs while maintaining a continuous state of the rail with a slight shaking in which the transmission of shaking between the first building part and the second building part does not become a problem, the first crane When the magnitude of the stress applied by the relative displacement between the garter and the second crane garter exceeds a predetermined value, the rail will be partially broken or dropped, and any further between the first building part and the second building part. The shaking can not be transmitted.

  Further, the present invention generally provides a rail support device for supporting a rail on which the traveling body travels in the first direction on the upper surface, and has a support body on which the rail is mounted and extends in the first direction together with the rail, The bearing body has a first bearing body and a second bearing body whose opposite ends are spaced apart from each other in the first direction, and a rail is provided between the respective ends of the first bearing body and the second bearing body. At least one intermediate bearing body that supports the upper surface and is movable in the first direction, and collides between adjacent ones of the first bearing body, the second bearing body, and the at least one intermediate bearing body. The prevention clearance is formed, and the total length of the collision prevention clearance in the first direction is set at least to the expected value in the first direction of the relative displacement that can occur between the first bearing body and the second bearing body. The first of the anti-collision clearance Each length in the direction is set so that the deformation of the rail can be suppressed within a range in which the traveling body can travel when the traveling body travels on the rail extending over the collision prevention clearance. A rail support device may be used.

  According to the present invention, even if the rail bearing bodies that support the rails on which the traveling bodies run on the upper surface change the distance between them, the collision prevention clearance absorbs the relative displacement, so that the rail bearing bodies are There will be no collision and damage, and the rail extending over the collision prevention clearance will not be deformed when passing the traveling body.

It is a front view of the crane apparatus of Example 1. FIG. It is a top view of the crane apparatus of Example 1. FIG. It is explanatory drawing of the normal time of the crane apparatus of this invention. It is explanatory drawing of operation | movement at the time of the relative displacement of the crane apparatus of this invention. It is a front view which expands and shows the principal part of the crane apparatus of Example 1. FIG. It is a top view which expands and shows the principal part of the crane apparatus of Example 1. It is the II sectional view taken on the line of FIG. It is the II-II sectional view taken on the line of FIG. It is the III-III sectional view taken on the line of FIG. It is explanatory drawing of operation | movement of a rail fracture | rupture part. FIG. 6 is a diagram illustrating a modified example of the first embodiment. It is a front view which expands and shows the principal part of the crane apparatus of Example 2. It is a top view which expands and shows the principal part of the crane apparatus of Example 2. It is a front view of the conventional crane apparatus. It is explanatory drawing of operation | movement of the conventional crane apparatus. It is explanatory drawing of operation | movement of the conventional crane apparatus.

  As shown in FIG. 1, the crane device 10 is installed in an extended building B, and is installed on a pillar of an existing first building part B1 and extends in the X direction (first direction). The crane gutter 21 and the second building part B1 which extends from the first building part B1 to the pillar of the new second building part B2 which is structurally separated from the first building part B1 so that the shaking of the first building part B1 is not transmitted. And a crane gutter 22. In the crane apparatus 10, a first crane gutter 21 and a second crane gutter 22 are provided on the same line, and a rail 30 extending in the X direction is laid on the upper side of the first crane gutter 21 and the second crane gutter 22. The crane traveling body 40 travels on the upper surface of the rail 30.

  As shown in FIG. 2, two first crane garters 21 and two second crane garters 22 are provided in parallel (up and down in FIG. 2) in a plan view of the building B from above. Accordingly, the rails 30 are also laid in pairs, and each rail 30 is provided with a rail running portion 41 that runs on the top surface in the X direction. A beam portion 42 is constructed so as to straddle the pair of rail running portions 41, and a trolley 43 is installed on the beam portion 42 so as to be able to run in the Y direction (second direction). The trolley 43 has a hook F that can be raised and lowered, and the suspended load M is conveyed by traveling of the trolley 43 and the rail traveling unit 41 while suspending the suspended load M. The trolley 43 having the rail traveling portion 41, the beam portion 42 and the hook F constitutes a crane traveling body 40 as a whole.

A garter extension 23 projects from the first crane garter 21 toward the second crane garter 22 at the end 21T of the first crane garter 21 on the second crane garter 22 side. gap L ₀ is formed between the end face and the end face of the end portion 22T of the second crane girder 22 opposite to the end surface. The garter extension 23 is configured such that only the lower side of the end portion 21T of the first crane garter 21 extends toward the second crane garter 22, and a horizontal upper surface is formed on the upper side thereof.

  An intermediate crane garter 50 is placed on the upper surface of the garter extension 23 between the first crane garter 21 and the second crane garter 22 so as to be movable in the X direction. A rail 30 extending between the crane garters 22 is supported. The rail support device 11 includes the first crane gutter 21, the second crane gutter 22, and the intermediate crane gutter 50.

  The rail 30 is supported by the rail support device 11. That is, the rail 30 is being fixed to the upper surface side of the 1st crane garter 21, the 2nd crane garter 23, and the intermediate crane garter 23, respectively. A part of the rail 30 on the side of the first crane gutter 21 is provided with a rail drop-off portion R (part where the rail is discontinuous) that drops off when a predetermined stress is applied to the rail 30. (See FIG. 10).

The basic operation of the rail support device 11 will be described with reference to FIGS. 3 and 4 on the assumption that a building is shaken by an earthquake as an example. 3 and 4 are diagrams for explaining the operation of the rail support device 11 in principle. Therefore, only the essential configuration of the rail support device 11 is schematically shown. Shown omitted. For example, the garter extension 23 is not shown here because an alternative configuration is conceivable as a configuration for movably supporting the intermediate crane garter 50 (see the description regarding FIG. 12 and FIG. 13 described later). . FIG. 3 is a diagram illustrating a state where the first crane gutter 21 and the second crane gutter 22 are stationary at a fixed position without relative displacement. The intermediate crane garter 50 is separated from the end surface of the first crane garter 21 (end surface of the end portion 21T) by a clearance L ₁ (anti-collision clearance) and from the end surface of the second crane garter 22 (end surface of the end portion 22T). It is arranged between the first crane gutter 21 and the second crane gutter 22 so as to be separated by a clearance L ₂ (collision prevention clearance). The clearance L ₁ and clearance L _2, in the present embodiment, just is set to be equal to the gap L ₀ when the sum of both. Gap L ₀ is is set slightly larger (e.g., 60cm) than the relative displacement in the X direction to be expected at level 2 earthquake motion [Delta] x (expected value). The clearance L ₁ and clearance L _2, in the present embodiment is set to the same size, as shown in FIG. 3, on rails 30 which are passed to the clearance L ₁ and clearance L ₂ in the suspended load transport Even if the crane traveling body 40 passes, the rail 30 is not excessively bent due to its weight, and the crane traveling body 40 is allowed to travel. For example, although the clearance L ₁ and the clearance L ₂ depend on the specifications of the crane traveling body 40, when the vertical displacement of the rail accompanying the passage of the crane traveling body 40 is δ, δ / L _1,2 <1/1000 (Here, L _{1 and 2} mean L ₁ or L ₂ ).

FIG. 4 shows a state in which the first crane garter 21 and the second crane garter 22 are displaced by the expected relative displacement amount Δx, and the second crane garter 22 approaches the first crane garter 21. Yes. At this time, the intermediate crane garter 50 that is movable in the X direction is pushed by the second crane garter 22 to move toward the first crane garter 21, and between the first crane garter 21 and the intermediate crane garter 50. The amount of movement of the intermediate crane garter 50 in the clearance L ₁ formed in the same manner as that added to the clearance L ₂ formed between the second crane garter 22 and the intermediate crane garter 50 is the same. (The same state as when a gap of L ₂ + Δx was initially provided between the second crane garter 22 and the intermediate crane garter 50). In this embodiment, since it is set to be the clearance L ₁ and clearance L ₂ and the summing all the relative displacement [Delta] x slightly larger set than have been _{L 0 (L 0> Δx)} , the first crane Even when the garter 21 and the second crane garter 22 are displaced by the relative displacement amount Δx, a gap (L ₀ −Δx) is still left between the first crane garter 21 and the intermediate crane garter 50. As a result, even if the first crane gutter 21 and the second crane gutter 22 are displaced by the expected relative displacement amount Δx, the first crane gutter 21 and the second crane gutter 22 exert a force on each other. Don't be. In this way, the problem of breakage due to the collision between the first crane gutter 21 and the second crane gutter 22 as in the prior art can be avoided.

  Next, the present embodiment will be described in detail with reference to FIGS.

FIG. 5 is an enlarged front view showing the main part of the crane device of the present embodiment, that is, the main part of the rail support device 11, and FIG. 6 is a plan view thereof. In FIG. 5, the intermediate crane garter 50 is placed on the upper surface of the garter extension 23 so as to be movable in the X direction. Between the middle figure the end face of the left side of the crane girder 50 and the right side in the drawing of the end face of the first crane garter 21, the clearance L ₁ is formed. On the other hand, between the end surface of the right side in the drawing of the intermediate crane girder 50 and the end face of the left side in the figure of the second crane garter 22, the clearance L ₂ is formed. A gap L ₀ between the right end surface of the garter extension 23 and the left end surface of the second crane garter 22 is formed below the right end portion of the intermediate crane garter 50. ₁ = _{L 2} and is set to _{L 0 = L 1 + L 2} . Accordingly, when the intermediate crane garter 50 moves until it abuts against the first crane garter 21, the right end surface of the intermediate crane garter 50 and the right end surface of the garter extension 23 are substantially aligned.

  The intermediate crane garter 50 connects the substantially rectangular bottom portion 511 placed on the garter extension 23, the upper portion 512 having the same shape as the bottom portion 511 and supporting the rail 30, and the bottom portion 511 and the upper portion 512. And a connecting portion 513 extending in the X direction that is erected perpendicularly to the center position of the bottom portion 511 in the Y direction.

  On the top surface of the garter extension 23, two pairs of X-direction guide portions 52 (intermediate crane garter guide means) are arranged in front and rear in the X direction so as to sandwich the bottom portion 511 of the intermediate crane garter 50 from both sides in the Y direction. It is installed. These X-direction guide portions 52 restrict the movement of the intermediate crane garter 50 in the Y direction by sandwiching the intermediate crane garter 50 in the Y direction as a pair, while allowing the intermediate crane garter 50 to slide in the X direction, The intermediate crane gutter 50 is movable in the X direction with respect to the X direction guide 52. The movement direction of the intermediate crane garter 50 is kept parallel to the X direction by the arrangement of the X direction guide portions 52 arranged before and after the X direction.

  Near the center of the intermediate crane garter 50 in the X direction, a mounting beam 53 extends vertically from the bottom 511 to the upper part 512, and toward the outside of the intermediate crane garter 50 at a position slightly below the center of the mounting beam 53 in the vertical direction. The X-direction movement start adjusting piece 54 (intermediate crane gutter movement start adjusting means) is projected. On the other hand, on the upper surface of the garter extension 23, the Γ-shaped contact piece 55 has a horizontally extending contact surface portion 551 at a position corresponding to the vicinity of the center in the X direction of the intermediate crane garter 50. The contact surface portion 551 is arranged so as to face the X-direction movement start adjusting piece 54 extending from the intermediate crane garter 50 side. Here, the X-direction movement start adjusting piece 54 does not allow the passage of the contact piece 55 in a straight state, but is bent when a force equal to or greater than a predetermined threshold is applied in the X direction, and in the bent state, the contact piece 55 is bent. Can pass through. The X-direction movement start adjusting piece 54 can be easily replaced, and a bent one and a new one can be immediately replaced. The threshold value of the force when the X-direction movement start adjusting piece 54 is bent can be appropriately set by adjusting the plate thickness and width of the X-direction movement start adjusting piece 54.

  The lower edge (vertical movement restricting means) of the contact surface portion 551 of the contact piece 55 is located slightly above the upper surface of the bottom portion 511 of the intermediate crane garter 50 and forms a slight gap.

  On the upper surface of the bottom portion 511 of the intermediate crane garter 50, a reverse running prevention piece 56 (a popping prevention means) is fixed so as to sandwich the contact surface portion 551 of the contact piece 55 together with the X-direction movement start adjusting piece 54. Even if the intermediate crane garter 50 is about to move toward the second crane garter 22, the reverse running prevention piece 56 is blocked by the abutting surface portion 551 of the abutting piece 55 and jumps out to the second crane garter 22 side. There is no such thing.

  On the upper surface of the bottom portion 511 of the intermediate crane garter 50, a tilt prevention wedge pair 57 (tilt prevention means) is disposed at the end on the first crane garter 21 side. The tilt-preventing wedge pair 57 includes an upper wedge 571 (fixed wedge) and a lower wedge 572 (moving wedge). The upper wedge 571 is fixed to the garter extension 23 by a wedge fixing bar 573, while the lower wedge Reference numeral 572 is fixed to the upper surface of the bottom portion 511 of the intermediate crane garter 50 and can be moved integrally with the intermediate crane garter 50. The upper wedge 571 and the lower wedge 572 are in contact with each other at an inclined contact surface (inclined surface) that is lowered to the right in FIG. 5, and when the intermediate crane gutter 50 moves to the first crane gutter 21 side, the upper wedge When the intermediate crane garter 50 moves to the second crane garter 22 side when the 571 and the lower wedge 572 are separated from each other, the upper wedge 571 and the lower wedge 572 are more closely attached to each other at the inclined contact surface. When the intermediate crane garter 50 is moved toward the second crane garter 22, the lower wedge 572 receives a downward component force from the upper wedge 571 via the inclined contact surface, and the intermediate crane garter 50 is moved to the garter extension 23. The intermediate crane garter 50 is prevented from being tilted by being more strongly pressed against the upper surface. In addition, the reinforcing beam 58 extends vertically from the bottom portion 511 to the upper portion 512 in order to support the upper portion 512 from moving upward due to inertia when tilting is prevented.

  A rail mounting plate 60 having the same shape as the upper portion 512 is slidably mounted on the upper surface of the upper portion 512 of the intermediate crane garter 50, and the upper surfaces and surfaces of the first crane garter 21 and the second crane garter 22. The rail 30 is fixed to the upper surface of the single rail mounting plate 60.

  On the upper part 512 of the intermediate crane garter 50, Y-direction guide portions 61 (rail attachment plate guide means) attached to the rail attachment plate 60 are paired on both sides in the X direction of the rail attachment plate 60. The upper part 512 is engaged so as to sandwich it. The Y-direction guide portions 61 that are paired in the X direction are provided at two locations in the front and rear in the Y direction, and the Y-direction guide portions 61 arranged in a total of four locations guide the rail mounting plate 60 only in the Y direction. Is configured to do. In this embodiment, the Y-direction guide portion 61 is fixed to the rail mounting plate 60 side and moves together with the rail mounting plate 60. Here, the portion of the connecting portion 513 through which the Y-direction guide portion 61 passes is cut away so that the movement of the Y-direction guide portion 61 relative to the upper portion 512 is not hindered. The Y-direction guide portion 61 may basically be any one that is fixed to either the rail mounting plate 60 or the upper portion 512 and allows sliding with respect to the other. Since the Y-direction guide portion 61 moves together with the rail mounting plate 60 to which the rail 30 is fixed, the Y-direction guide portion 61 does not narrow the movable range of the rail 30 (when the Y-direction guide portion 61 is fixed to the upper portion 512). When the rail mounting plate 60 moves greatly, the rail 30 collides with the Y direction guide portion 61.)

  Two pairs of mounting pieces 62 extend downward in the X direction at the position on the Y direction end face side of the lower surface of the upper portion 512 of the intermediate crane garter 50 so as to form a pair in the Y direction. A Y-direction movement start adjustment piece 63 (rail attachment plate movement start adjustment means) is attached to each of the attachment pieces 62. The Y-direction movement start adjusting piece 63 extends upward, and the upper end thereof is in contact with the Y-direction end surface of the rail mounting plate 60. Here, the Y-direction movement start adjusting piece 63 does not allow the rail mounting plate 60 to pass in a straight state, but is bent when a force equal to or greater than a predetermined threshold is applied in the Y direction. In this bent state, the rail mounting plate 60 is bent. 60 can pass through. The Y-direction movement start adjusting piece 63 can be easily replaced, and a bent one and a new one can be immediately replaced. The threshold value of the force when the Y-direction movement start adjusting piece 63 is bent can be set as appropriate by adjusting the thickness and width of the Y-direction movement start adjusting piece 63.

  A fall prevention wire mounting bracket 70 is erected on each of the upper surface of the bottom 511 of the intermediate crane garter 50, the upper surface of the rail mounting plate 60, and the upper surface of the garter extension 23, and the fall prevention wire W It is connected.

  The crane apparatus 10 of the present embodiment configured as described above and the rail support apparatus 11 constituting the main part thereof operate as follows.

If the first crane garter 21 and the second crane garter 22 is stationary at a fixed position without relative displacement, X-direction clearance L ₁ formed between the first crane garter 21 and the intermediate crane girder 50 of the length, the length of the second crane garter 22 and X-direction clearance L ₂ formed between the intermediate crane gutter 50 also flexes lower rail 30 under the weight of the crane traveling body 40, a crane Since it is set to such an extent that the traveling body 40 can travel, the crane traveling body 40 travels on the rail 30 without hindrance while hanging the suspended load M.

Next, the first building part B1 and the second building part B2 bend differently due to, for example, an earthquake, and the first crane garter 21 and the second building part B2 installed in the first building part B1. When the second crane garter 22 installed in the base plate is relatively displaced, the swing is not so large and the magnitude thereof is sufficiently smaller than the clearance L ₀ , the intermediate crane garter 50 has the reverse running prevention piece 56. And the X-direction movement start adjusting piece 54 sandwich the abutting surface portion 551 of the abutting piece 55 fixed to the garter extension 23, and thus do not move in the X direction on the garter extension 23. As a result, the intermediate crane garter 50 does not move to the extent that a small and medium-scale earthquake or the like occurs. Therefore, after the shaking is stopped, the operation of correcting the position of the intermediate crane garter 50 does not occur.

  However, for example, a large-scale earthquake such as a seismic intensity of 6 or more causes an intense swing and inertia force acts on the intermediate crane garter 50, or the second crane garter 22 that has been relatively displaced hits the intermediate crane garter 50 and moves in the X direction. When the magnitude of the X-direction force acting on the start adjustment piece 54 exceeds a predetermined threshold, the X-direction movement start adjustment piece 54 is pushed by the contact surface portion 551 of the contact piece 55 and bent, and in this state, the X direction Since the movement start adjusting piece 54 can pass through the contact surface portion 551, the intermediate crane garter 50 can move toward the first crane garter 21. As a result, when the second crane gutter 22 is displaced toward the first crane gutter 21, the intermediate crane gutter 50 is pushed toward the first crane gutter 21 and moved toward the first crane gutter 21. can do.

  On the other hand, the reverse running prevention piece 56 still contacts the contact surface portion 551 of the contact piece 55 and prohibits the movement of the intermediate crane garter 50 toward the second crane garter 22. Is prevented from moving toward the second crane garter 22 and jumping out of the garter extension 23 and falling down.

  Since a slight gap is formed between the lower edge of the contact surface portion 551 of the contact piece 55 and the upper surface of the bottom portion 511 of the intermediate crane garter 50, when the intermediate crane garter 50 moves. When the intermediate crane garter 50 is going to rise from the upper surface of the garter extension 23, the upper surface of the bottom 511 of the intermediate crane garter 50 is placed on the lower edge of the contact surface portion 551. The intermediate crane garter 50 does not move upward from the garter extension 23 any more.

  When the intermediate crane garter 50 moves toward the first crane garter 21, the movement in the Y direction is restricted by the X direction guide portion 52 in spite of the shaking in the Y direction, and the X on the garter extension portion 23 is controlled. Move only in the direction. This prevents the intermediate crane garter 50 from falling down from both ends in the Y direction of the garter extension 23, and when the intermediate crane garter 50 is pushed from the second crane garter 22, the first crane garter smoothly moves along the X direction. It can move toward 21.

When the intermediate crane gutter 50 moves toward the second crane gutter 22, in addition to the reverse running prevention piece 56, the tilt prevention wedge pair 57 also regulates its movement. When the intermediate crane garter 50 moves to the second crane garter 22 side, the upper wedge 571 and the lower wedge 572 are brought into close contact with each other at the inclined contact surface, and further movement is restricted, and the upper wedge 571 controls the intermediate crane garter. Since 50 is pressed against the upper surface of the garter extension 23, the intermediate crane garter 50 is prevented from being tilted. Thus, it never slips off the intermediate crane gutter 50 so as to incline the second crane garter 22 side from the gap L ₀ downward. Conversely, when the intermediate crane garter 50 moves toward the first crane garter 21, the wedge 571 and the lower wedge 572 are immediately separated from each other at the inclined contact surface, and the movement of the intermediate crane garter 50 is prevented by friction or the like. There is no.

  When the first building part B1 and the second building part B2 swing differently due to an earthquake or the like, the first crane gutter 21 and the second crane gutter 22 are relatively displaced in the X direction as described above. In addition to the relative displacement in the Y direction. At this time, since the plate mounting plate 6 is sandwiched by the Y-direction movement start adjusting piece 63 on both sides in the Y-direction, it does not move in the Y-direction with respect to the intermediate crane gutter 50 when the shaking is not so great. As a result, the plate mounting plate 6 does not move to the extent that a small-to-medium-scale earthquake or the like occurs. Therefore, after the shaking is settled, an operation for correcting the position of the plate mounting plate 6 does not occur.

However, for example, when the first crane gutter 21 and the second crane gutter 22 are greatly shifted in the Y direction due to a large-scale earthquake such as a seismic intensity of 6 or more, the rail 30 temporarily moves with respect to the intermediate crane gutter 50. When not possible, will be an intermediate crane garter 50 only allowed deformation of the rail 30 in the anti-collision clearance L ₂ between the second crane garter 22, so that the applied local stress to the rail 30. Therefore, when such a large displacement in the Y direction occurs, the plate mounting plate 6 bends the Y direction movement start adjustment piece 63 with a force in the Y direction exceeding the threshold value, and passes through the Y direction movement start adjustment piece 63. And move in the Y direction. The rail 30 is laterally displaced toward the intermediate position in the Y direction of the first crane gutter 21 and the second crane gutter 22, so that the deformation of the rail 30 is a relatively wide range from the first crane gutter 21 to the second crane gutter 22. The force in the Y direction applied to the rail 30 can be distributed over a predetermined length.

  Further, the rail 30 has a rail drop-off portion R formed on a part of the upper side of the first crane garter 21. For example, as shown in FIG. 30 and the rail 30 is discontinuous at this portion, so that it is possible to prevent the first building part B1 and the second building part B2 from transmitting the vibration through the rail 30.

  The intermediate crane garter 50 and the garter extension 23 as well as the rail mounting plate 60 and the garter extension 23 are dropped in case the intermediate crane garter 50 configured as described above still falls from the garter extension 23. The intermediate crane garter 50 and the rail mounting plate 60 can be prevented from dropping by being connected to each other by the fall prevention wire W via the prevention wire mounting bracket 70.

As described above, according to the rail support device 11 and the crane device 10 including the rail support device 11 according to the first embodiment of the present invention, the first crane garter 21 and the second crane garter 22 that are relatively displaced from each other. The clearances L ₁ and L ₂ between them prevent collision with each other, and when the crane traveling body 40 travels on the rail 30 passed to the clearances L ₁ and L ₂ , the rail 30 Can be suppressed to such an extent that the crane traveling body 40 can travel. The X-direction movement start adjusting piece 54 does not move the intermediate crane gutter 50 at the magnitude of the shaking of a small and medium-sized earthquake, and no special post-adjustment work is required, but it is comparable to a large earthquake. When shaking occurs, the X-direction movement start adjusting piece 54 is bent to allow the movement of the intermediate crane garter 50 to exert the above-mentioned effect. Upon restoration, the position of the moved intermediate crane garter 50 is adjusted. Since it is only necessary to replace the bent X-direction movement start adjusting piece 54 with a new one, the restoration work can be completed almost on the same day. This also applies to the rail mounting plate 60 and the Y-direction movement start adjusting piece 63.

  Although one embodiment of the present invention has the above-described configuration, it goes without saying that the configuration can be changed to various modes for realizing the technical idea of the present invention. For example, the intermediate crane garter guiding means, the vertical movement restricting means, and the tilt preventing means can be implemented in a manner as shown in FIG. In this modified example, an engaging portion 80 projecting from the bottom surface of the bottom portion 511 of the intermediate crane garter 50 has a reverse T-shaped cross section and extends a predetermined length in the X direction, while the garter extension 23 side has A guide hole 90 into which the engaging portion 80 is slidably fitted in the X direction is formed from the upper surface side. The engaging portion 80 and the guide hole 90 cooperate to guide in the X direction while restricting movement of the intermediate crane garter 50 in the Y direction, thereby restricting vertical movement and preventing tilting. The intermediate crane garter 50 is guided to the guide hole 90 and freely slides in the X direction, but the second crane garter 22 of the engaging portion 80 is prevented so as to prevent the intermediate crane garter 50 from jumping out to the second crane garter 22 side. An unillustrated pop-out preventing portion that prohibits the movement to is provided in the guide hole 90 as a pop-out preventing means. This can be realized, for example, in the form of an abutment piece projecting in the guide hole 90 so as to abut against the end face of the engaging portion 80. Further, rough surfaces are provided on the surfaces of the engaging portion 80 and the guide hole 90, and the intermediate crane gutter 50 starts moving toward the first crane gutter 21 exceeding the static friction force only when a predetermined force is applied. Thus, the intermediate crane gutter movement start adjusting means can be implemented. In addition, the operation of the present invention has been described on the assumption that the relative displacement between the first crane gutter 21 and the second crane gutter 22 occurs due to the shaking of the building at the time of the earthquake occurrence. Needless to say, the present invention can also be applied to the case where relative displacement between the first crane gutter 21 and the second crane gutter 22 occurs due to the cause.

  Next, a second embodiment of the present invention will be described with reference to FIGS. Since FIG.12 and FIG.13 shows only the principal part of this invention, about the whole structure of the crane apparatus 10, FIG.1 and FIG.2 is used. In addition, the same configuration as that of the first embodiment of the present invention is partially omitted for the sake of clarity, and members denoted by the same reference numerals among the illustrated members are the same as those of the first embodiment. There is an effect.

  The crane apparatus 10 including the rail support device 11 according to the present embodiment includes a pair of arm type garter extensions 230 projecting in the X direction from both side surfaces of the first crane garter 21 in the Y direction, and an arm type garter extension 230. And two intermediate crane garters 50a and 50b respectively held via support arms 110 that are slidably fitted in the X direction. In this embodiment, the intermediate crane garter guide means, the vertical movement restricting means, and the tilt preventing means are realized by the slidable fitting between the arm type garter extension 230 and the support arm 110.

While the first crane garter 21 and the second crane garter 22 are stationary at a fixed position without relative displacement, between the right end surface in FIG. 12 of the first crane garter 21 and the left end surface of the intermediate crane garter 50a. They are spaced apart by a clearance L _1. Between the right end surface of the intermediate crane girder 50a and the intermediate crane girder 50b left end face of the being spaced clearance L _2. And, between the right end surface of the intermediate crane girder 50b and the left end surface of the second crane garter 22 is spaced a clearance L _3. The clearance L ₁ , the clearance L _2, and the clearance L ₃ are set equal in this embodiment, and the crane travels while carrying a suspended load on the rail 30 passed to the clearance L ₁ , the clearance L _2, and the clearance L _3. Even if the body 40 passes, the rail 30 is not excessively bent due to its weight, and the crane traveling body 40 is allowed to travel.

Clearance L ₁ , clearance L _2, and clearance L ₃ are slightly larger (for example, 60 cm) than the relative displacement amount Δx (predicted value) in the X direction that is expected for level 2 ground motion when all are added together. Is set.

  When the intermediate crane garters 50a and 50b are arranged in the state shown in FIG. 12, the arm-type garter extension portion 230 has a reverse running prevention piece 120 so that the intermediate crane garters 50a and 50b do not move to the second crane garter 22 side. (A pop-out preventing means) is fixed and is in contact with the right surface of the support arm 110.

  Further, a rough surface portion 130 (intermediate crane garter movement start adjusting means) is formed from the left side surface of the support arm 110 of the arm type garter extension 230 to a position where it contacts the sliding surface of the support arm 110. The intermediate crane garters 50a and 50b can overcome the static friction force and move toward the first crane garter 21 only when a force in the X direction equal to or greater than a predetermined threshold is applied to 50a and 50b. .

Also in the present embodiment, the crane traveling body 40 can travel on the rail 30 at normal times. For example, when an earthquake occurs, the movement of the intermediate crane garters 50a and 50b is suppressed by the rough surface portion 130 when a small and medium-scale earthquake occurs. On the other hand, when a large earthquake with a seismic intensity of 6 or more occurs, for example, While the garters 50a, 50b are prohibited from moving toward the second crane garter 22 by the reverse running prevention piece 120, they can move toward the first crane garter 21 by overcoming the static frictional force and overcoming the rough surface portion 130, and clearance. L ₁ , L _2, and L ₃ prevent a collision caused by relative displacement between the first crane garter 21 and the second crane garter 22.

Therefore, according to the crane apparatus 10 including the rail support device 11 according to the second embodiment of the present invention, the clearances L ₁ and L ₂ between the first crane garter 21 and the second crane garter 22 that are relatively displaced from each other. And L _3, and when the crane traveling body 40 travels on the rail 30 passed to the clearances L ₁ , L ₂ and L ₃ , the rail 30 thanks to the intermediate crane garters 50a and 50b. Can be suppressed to such an extent that the crane traveling body 40 can travel. And according to the present Example, since there is no member damaged when adjusting the movement start of the intermediate crane garters 50a and 50b in the X direction, the time required for recovery can be further shortened.

  As described above, according to the present invention, the collision is prevented by the collision preventing clearance between the first crane garter and the second crane garter that are relatively displaced from each other, and the crane traveling body is passed to the gap. When traveling on the rail, the deformation of the rail can be suppressed to the extent that the traveling of the crane traveling body is made possible by the intermediate crane gutter.

  The rail support device of the present invention can be applied not only to the crane device but also to any device having a gap between two support bodies for supporting the rail. For example, if a rail spanned between two bridges separated structurally is supported by an intermediate support placed between the two bridges, the two bridges will vibrate due to an earthquake, etc. Even if the distance between the two bridges changes, the bridges will not collide and be damaged, and the rail will not be damaged by the weight of the traveling body. Such a rail support device is preferably used for an amusement machine such as an iron bridge on which a train as a traveling body travels or a roller coaster in an amusement park.

Crane device ... 10
Rail bearing device ... 11
1st crane gutter (first bearing body) ... 21
Second crane gutter (second bearing body) ... 22
Garter extension ... 23
Rail ... 30
Crane traveling body (traveling body) ... 40
Intermediate crane gutter (intermediate bearing body) ... 50
Intermediate crane gutter (intermediate bearing body) ... 50a, 50b
X direction guide ... 52
X-direction movement start adjustment piece 54
Contact piece ... 55
Contact surface portion 551
Reverse running prevention piece ... 56
Tilt prevention wedge pair ... 57
Upper wedge ... 571
Lower wedge ... 572
Rail mounting plate ... 60
Y direction guide part ... 61
Y-direction movement start adjustment piece 63
Engagement part ... 80
Guide hole ... 90
Arm type garter extension ... 230
Support arm ... 110
Reverse running prevention piece ... 120
Rough surface part ... 130
Gap ... S
Gap ... L ₀
Clearance _{... L 1, L 2, L} 3
Rail dropout part ... R
Hanging load ... M
Building ... B
1st building part ... B1
Second building part ... B2
Ground ... G

Claims (12)

In a rail support device that supports a rail in which a crane traveling body that lifts and conveys a suspended load travels in the first direction on the upper surface,
A crane garter on which the rail is mounted and extending in the first direction together with the rail;
The crane garter has a first crane garter and a second crane garter whose opposing ends are separated from each other in the first direction,
Between each of the ends of the first crane garter and the second crane garter, at least one intermediate crane garter that supports the rail on the upper surface side and is movable in the first direction is disposed,
An anti-collision clearance is formed between adjacent ones of the first crane garter, the second crane garter and the at least one intermediate crane garter,
The total length of the anti-collision clearance in the first direction is set at least to an expected value in the first direction of a relative displacement that can occur between the first crane garter and the second crane garter,
The lengths of the anti-collision clearance in the first direction enable the crane traveling body to travel when the crane traveling body travels on the rail extending over the anti-collision clearance. A rail support device characterized in that it is set in a range so that deformation of the rail is suppressed. The rail support device according to claim 1,
A rail support device comprising intermediate crane garter guide means for guiding movement of the intermediate crane garter in the first direction and restricting movement in the second direction intersecting the first direction. . In the rail support device according to claim 1 or 2,
When the first crane garter and the second crane garter are relatively displaced, the intermediate crane garter is moved in the first direction only when the force in the first direction acting on the intermediate crane garter exceeds a predetermined threshold. A rail bearing device comprising an allowable intermediate crane gutter movement start adjusting means. In the rail support apparatus as described in any one of Claims 1 thru | or 3,
A rail mounting plate is interposed between the upper surface of the intermediate crane garter and the rail, and regulates movement of the rail mounting plate in the first direction and guides movement in the second direction. A rail support device comprising plate guide means. In the rail support device according to claim 4,
At the time of relative displacement between the first crane garter and the second crane garter, the second direction of the rail mounting plate moves only when the force in the second direction acting on the rail mounting plate exceeds a predetermined threshold. A rail support device comprising rail mounting plate movement start adjustment means for allowing movement of the rail. In the rail support device according to any one of claims 1 to 5,
A garter extension is projected from either the first crane garter or the second crane garter toward the other, and the intermediate crane garter is mounted on the upper surface of the garter extension so as to be movable in the first direction. Rail support device characterized by being placed. The rail support device according to claim 6,
A rail support device characterized in that a vertical movement restricting means for restricting the upward movement of the intermediate crane garter is provided on the upper surface of the garter extension. In the rail support device according to claim 6 or 7,
The first crane garter or the second crane garter is provided with a pop-out preventing means for restricting the intermediate crane garter from moving from one to the other where the garter extension is provided. Rail bearing device. In the rail support device according to any one of claims 6 to 8,
The rail support device according to claim 1, wherein an inclination preventing means for preventing the intermediate crane garter from tilting is provided on an upper surface of the garter extension. The rail support device according to claim 9,
The tilt prevention means includes a wedge pair consisting of a moving wedge fixed to the intermediate crane garter and a fixed wedge fixed to the garter extension so as to come into contact with the moving wedge from above.
When the intermediate crane garter moves toward the one of the first crane garter or the second crane garter provided with the garter extension, the moving wedge is separated from the fixed wedge, The rail bearing device according to claim 1, wherein when the intermediate crane garter moves toward the other side, the moving wedge has an inclined surface that receives a pressing force downward by the fixed wedge. In the rail support device according to any one of claims 1 to 10,
The first crane garter is installed in a first building part, the second crane garter is installed in a second building part adjacent to the first building part in a structurally separated state, and the relative displacement is The rail bearing device is a displacement generated between the first crane gutter and the second crane gutter due to a difference in shaking between the first building portion and the second building portion. In the rail support device for supporting the rail on which the traveling body travels in the first direction on the upper surface,
The rail is mounted and has a support body extending in the first direction together with the rail;
The bearing body has a first bearing body and a second bearing body whose opposite ends are spaced apart from each other in the first direction;
Between each of the end portions of the first support body and the second support body, at least one intermediate support body that supports the rail on the upper surface side and is movable in the first direction is disposed.
An anti-collision clearance is formed between adjacent ones of the first bearing body, the second bearing body and the at least one intermediate bearing body,
The total length of the anti-collision clearance in the first direction is set to at least an expected value in the first direction of a relative displacement that can occur between the first bearing body and the second bearing body,
Each length of the collision preventing clearance in the first direction is within a range in which the traveling body can travel when the traveling body travels on the rail extending over the collision preventing clearance. A rail support device, wherein the rail support device is set to suppress deformation of the rail.

Images