JP2012107456A - Branching device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a branching device capable of adjusting the entire length of a track when forming a straight section and when forming a curve section and increasing the degree of freedom of arrangement.SOLUTION: For a guide rail for regulating the moving direction of movable girders 10a-10f, a curvature center is positioned on the side of an incoming line side fixed girder A1, the one farther from the incoming line side fixed girder A1 is formed in a circular arcuate shape of a larger radius, and the curvature center is shifted to one side from the center of a girder width direction and positioned. Thus, while an extension portion can be compensated by enlarging an expansion gap between the movable girders 10a-10f from t1 to t3 when it is needed to prolong the entire length of the track by conversion from the straight section to the curve section, a shortening portion can be absorbed by reducing the expansion gap between the movable girders 10a-10f from t3 to t1 when it is needed to shorten the entire length of the track by conversion from the curve section to the straight section. As a result, the degree of freedom of arrangement of a branching device 100 is increased.

Description

  The present invention relates to a branching device, and more particularly to a branching device capable of adjusting the total length of a track during the formation of a straight section and the formation of a curved section and capable of expanding the degree of freedom of arrangement.

  Patent Document 1 discloses a branching device that branches a track or a track and selects a course of a vehicle such as a railway vehicle. According to this branching device, the connecting track C connected to the double track fixed track A and the double track fixed track B are connected to the connecting portion of the double track fixed tracks A and B composed of the up line and the down line. The connecting track D is arranged opposite to the track length direction, and the carriage 3 on which the connecting tracks C and D are mounted is moved along the carriage rail 4 so that the up and down lines of each other are connected. The trajectory is changed between a reference position where the lines are connected to each other and a transition position where the lines that are different from each other are connected.

Japanese Patent Laid-Open No. 05-140902 (FIGS. 1 and 2, etc.)

  By the way, when comparing the reference position and the crossover position, at the crossover position, the separation distance between the fixed tracks A and B to be connected becomes long and the track alignment becomes a curve, so the separation distance is close and the track alignment becomes a straight line. Compared with the reference position, the required trajectory length becomes longer. However, in the above-described conventional branching device, the plurality of movable girders 1a, ..., 1b, ... arranged in the length direction are connected around the vertical axis Q at their opposite ends, so Remains constant and the trajectory is changed. In other words, since the total length of the track is not adjusted when the straight section is formed and when the curved section is formed, the clearance between the connecting tracks C and D when the curved section is formed becomes excessive, or the connecting tracks C and D when the straight section is formed. There is a problem in that the arrangement of the branching device is restricted so that the gap between them is not too small, and the degree of freedom of the arrangement is limited.

  The present invention has been made to solve the above-described problems, and a branching device that can adjust the overall length of the trajectory at the time of forming a straight section and at the time of forming a curvilinear section and can increase the degree of freedom in arrangement. It is intended to provide.

Means for Solving the Problems and Effects of the Invention

  According to the branching device of the first aspect, opposite ends of the movable girders arranged in the longitudinal direction are mounted on the carriage device, and the carriage device moves along the guide rail to move the rearmost end. The traveling path of the vehicle is switched by moving the digit at least between the reference position and the branch position.

  In this case, the carriage is provided with a connecting member for connecting at least one of the opposed ends of the movable beam so as to be rotatable and relatively movable in the longitudinal direction, and the guide rail is arranged on the start-side fixed beam side. Since the center of curvature is located separately and the farthest from the starting end fixed girder is, the larger the radius is, and the center of curvature is located on one side than the center of the girder width direction. When the carriage device is moved from the state where the straight section is formed to the side where the center of curvature of the guide rail is located (one side in the girder width direction) to form a curved section, there is a gap between the movable girders. While increasing the total length of the branching device, from that state, when moving the carriage device to the opposite side to form a straight section, to reduce the gap between the movable girders, Branching device There is an effect that it is possible to shorten the length. That is, when it is converted from a straight section to a curved section and it is necessary to increase the total length of the trajectory, the extension can be compensated by expansion of the play between movable girders, while the curved section is converted to a straight section, When it is necessary to shorten the total length of the track, the shortened portion can be absorbed by reducing the play between the movable beams. As a result, it is possible to suppress restrictions when arranging the branching device, so that the degree of freedom in arranging the branching device can be increased accordingly.

  According to the branching device according to claim 2, in addition to the effect produced by the branching device according to claim 1, the carriage device supports the platform on which the opposite ends of the movable beam are mounted, and the platform. In addition, a wheel rolling on the upper surface of the carriage rail laid along the guide rail, one or a plurality of guide rollers rolling on both side surfaces of the guide rail, and a guide main body portion to which these guide rollers are attached And a guide connecting shaft that rotatably connects the guide main body portion to the pedestal portion, the durability of the wheel can be improved, and the drive device can be downsized to reduce energy consumption. There is an effect that can be.

  That is, the wheel provided with the flange rolls on the guide rail so that the horizontal load can be supported by the flange and the cart device can be moved along the guide rail by rolling the wheel. If the flange is in a state of being twisted with respect to the guide rail, the wheel cannot be smoothly rolled, resulting in a decrease in durability of the wheel and an increase in energy consumption of the driving device. On the other hand, according to the present invention, the wheels roll on the upper surface of the carriage rails laid along the guide rails, and one or more sets of guide rollers provided separately from the wheels are provided on both sides of the guide rails. Since the surface rolls, the horizontal load can be supported by engaging the guide roller with the side surface of the guide rail when the horizontal load acts on the base portion from the movable girder. Therefore, since it is not necessary to provide a flange on the wheel, the flange is not twisted with respect to the carriage rail, and the wheel can be smoothly rotated. Therefore, the durability of the wheel can be improved, and the drive device can be downsized to reduce energy consumption.

  Furthermore, since the guide main body portion to which one or more sets of guide rollers are attached is rotatably connected to the base portion by a guide connecting shaft, a corner bending displacement occurs between the movable beams when the track is changed. Even in this case, the guide main body part and the base part can be rotated relative to each other via the guide connecting shaft. As a result, there is an effect that the burden on the guide roller can be reduced. Therefore, the durability of the guide roller can be improved accordingly. In addition, it is possible to select a low-strength material for the guide roller, and it is possible to reduce the size of the guide roller, thereby reducing the product cost.

It is a top view of the branching apparatus 100 in one embodiment of this invention, (a) illustrates the state in which the reference course is formed, and (b) illustrates the state in which the branch path is formed. (A) is a partial enlarged top view of a branch device, (b) is a partial enlarged side view of a branch device. It is a partial enlarged top view of a branch device. It is the schematic diagram which illustrated the arrangement | positioning of a guide rail typically. It is a partial expanded side view of a branch device. It is sectional drawing of the branching apparatus in the VI-VI line of FIG. It is the schematic diagram which illustrated the top view of the guide part typically. It is sectional drawing of the connection mechanism in the VIII-VIII line of FIG. It is a partial enlarged top view of a branch device. It is sectional drawing of the bearing mechanism comprised as an elastic bearing.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. First, the overall configuration of the branching apparatus 100 will be described with reference to FIG. FIG. 1 is a top view of a branching device 100 according to an embodiment of the present invention. FIG. 1A shows a state in which a reference course is formed by arrangement of movable girders 10a to 13f at a reference position. In b), the states where the branch paths are formed by the arrangement of the movable girders 10a to 13f at the branch positions are respectively illustrated. In FIG. 1, the pedestals 30a to 30f and the rails 31a to 31f, 32a to 32f, etc. are not shown.

  As shown in FIG. 1, the branching device 100 is arranged between the up line fixed digits A1 and A2 and the down line fixed digits B1 and B2, and is connected to the up line fixed digits A1 and the down line fixed digits B1. The movable girders 10a to 10f and 11a to 11f, and the movable girders 12a to 12f and 13a to 13f connected to the ascending line side fixed girder A2 and the descending line side fixed girder B2 are in the track length direction (FIG. ) In the left-right direction) to form a traveling path of a vehicle (not shown).

  That is, in the state in which the reference course is formed, as shown in FIG. 1A, the up line is formed by the up line fixed digits A1 and A2 and the movable girders 10a to 10f and 12a to 12f, and the down line The down line is formed in parallel with the up line by the side fixed beams B1 and B2 and the movable beams 11a to 11f and 13a to 13f.

  As will be described later, these movable girders 10a to 10f are mounted on bogie devices 20a to 20f (see FIG. 2B), and the bogie devices 20a to 20f are guide rails 32a to 32f and the like (see FIG. 3). 1b, as shown in FIG. 1 (b), a branch path is formed as a curved section that is arranged at a branch position and is connected to mutually different lines. On the other hand, the movable girders 10a to 10f and the like move from the state shown in FIG. 1 (b) to the reverse direction of the carriage devices 20a to 20f and the like along the guide rails 32a to 32f. As shown, a reference course is formed as a straight section that is arranged at a reference position and connects the upstream and downstream lines to each other.

  Next, the detailed configuration of the branching apparatus 100 will be described with reference to FIG. 2A is a partially enlarged top view of the branching device 100, and FIG. 2B is a partially enlarged side view of the branching device 100. Note that the movable girders 10a to 10f, 11a to 11f and the movable girders 12a to 12f and 13a to 13f are installed directions when they are installed between the up-line fixed digits A1 and A2 and the down-line fixed digits B1 and B2. However, only the movable girders 10a to 10f and 11a to 11f will be described below, and description of the movable girders 12a to 12f and 13a to 13f will be omitted. Moreover, since the cart apparatus on which the movable girders 11a to 11f are mounted has the same configuration as the cart apparatus 20a to 20f on which the movable girders 10a to 10f are mounted, the description thereof will be omitted below.

  As shown in FIG. 2, the branching device 100 supports the carriage devices 20 a to 20 e that support the opposite ends of the movable girders 10 a to 10 f and 11 a to 11 f and the rear end side ends of the movable girders 10 f and 11 f. A rear end side cart device 20f, and pedestals 30a to 30f on which tracks for moving the cart devices 20a to 20e and the rear end side cart device 20f are formed, the cart devices 20a to 20e and the rear end side cart When the device 20f moves, the traveling route of the vehicle is switched between the reference route and the branch route.

  Next, the gantry 30a to 30f will be described with reference to FIG. FIG. 3 is a partially enlarged top view of the branching device 100, and illustrations of the opposite ends of the movable girders 10d and 10e and the movable girders 11d and 11e are partially omitted. FIG. 3 corresponds to the state of FIG. 1A (that is, a state in which the reference course is formed by the arrangement of the movable girders 10a to 10f and 11a to 11f at the reference position).

  The gantry 30a-30f is different only in the length and radius of the track (the rail lengths and radii of the carriage rails 31a-31f, 33a-33f and the guide rails 32a-32f, 34a-34f). Since both are the same, hereinafter, the gantry 30d will be described as a representative example, and description of the gantry 30a to 30c, 30e, and 30f will be omitted.

  As shown in FIG. 3, a cart device 20d (see FIG. 2B) is provided on the lower surface side of the branching device 100 and on the lower surface side of the opposite ends of the movable girders 10d and 10e and the movable girders 11d and 11e. Is provided with a pedestal 30d for forming a trajectory for movement. A total of four carriage rails 31d, 33d and two guide rails 32d, 34d are laid on the gantry 30d.

  The bogie rail 31d is a rail on which wheels 221 (see FIGS. 5 and 6) of the bogie device 20d on which the opposite ends of the movable girders 10d and 10e are mounted rolls and is fixed on the up line side in a top view. The center of curvature is located on the beam A1 and the down line side fixed beam B1 side (see FIG. 1), and is curved in an arc shape that is convex on the up line side fixed beam A2 and the down line side fixed beam B2 side (see FIG. 1). Is formed. The carriage rail 31d supports the weights (vertical loads) of the movable girders 10d and 10e and the carriage device 20d.

  The guide rail 32d is a rail for restricting the movement of the movable girder 10d in the longitudinal direction (girder length direction, left-right direction in FIG. 3) and guiding the movement of the carriage device 20d, and is disposed in the carriage device 20d. The plurality of sets (two sets in the present embodiment) of guide rollers 231 (see FIGS. 5 and 6) are sandwiched between the outer peripheral surfaces. The guide rail 32d has an arc shape concentric with the bogie rail 31d when viewed from above (that is, the center of curvature is located on the upside fixed girder A1 and downline fixed girder B1 side, and the upline fixed girder A2 and downhill It is curved and formed in a circular arc that protrudes toward the line-side fixed beam B2. The guide rail 32d supports a horizontal load (horizontal load) when the movable girder 10d attempts to move in the longitudinal direction, and the movement direction of the carriage device 20d is restricted only to the direction along the guide rail 32d. The

  The bogie rail 33d is a rail on which wheels (not shown) of the bogie device on which the opposite ends of the movable girders 11d and 11e are mounted rolls and is curved and formed in the same arc shape as the bogie rail 31d. The movable girder 11d, 11e and the opposite ends of the movable girder 11d, 11e support the weight (vertical load) of the carriage device (not shown) on which the movable girder 11d, 11e is opposed.

  The guide rail 34d regulates movement of the movable girder 11d in the longitudinal direction (girder length direction, left-right direction in FIG. 3), and a carriage device (not shown) on which the opposite ends of the movable girder 11d and 11e are mounted. )) And is sandwiched between the outer peripheral surfaces of the pair of guide rollers, like the guide rail 32d. The guide rail 34d is formed in a curved shape concentrically with the carriage rail 33d in a top view, and a horizontal load (horizontal load) when the movable girder 11d attempts to move in the longitudinal direction. Supports and regulates the direction of movement of the bogie device.

  The guide rail 32d and the guide rail 34d are formed in an arc shape having the same radius, and the positions of the centers of curvature in the girder length direction (left-right direction in FIG. 3) at the time of forming the reference path are arranged at the same position ( (See Figure 4). On the other hand, the radius of the bogie rail 31d is slightly smaller than the radius of the bogie rail 33d, and the overlap of the bogie rail 31d and the bogie rail 33d on the mount 30d is prevented.

  Next, the guide rails 32a to 32f and 34a to 34f will be described with reference to FIG. FIG. 4 is a schematic diagram schematically showing the arrangement of the guide rails 32a to 32f and 34a to 34f. The state shown in FIG. 1A (that is, the movable girders 10a to 10f and 11a to 11f are moved to the reference positions). Corresponds to a state in which a reference course is formed by arrangement). In FIG. 4, imaginary lines C1 and C2 passing through the center of the movable beams 10a to 10f and 11a to 11f in the width direction are shown by alternate long and short dash lines, and other than the guide rails 32a to 32f and 34a to 34f are excluded. The illustration of the configuration is omitted.

  The branching device 100 has movable girder 10f, 11f located on the rear end side with a fixed fulcrum as a starting end side end (more specifically, a coupling mechanism 50 described later) of the movable girder 10a, 11a located on the starting end side. Since the movement of the rear end side end portion is maximized (see FIG. 1B), the rail lengths of the guide rails 32a to 32f and 34a to 34f are fixed fulcrums (that is, on the up line side). The closer to the fixed girder A1 and the down line side fixed girder B1) side, the shorter, and the farther from the fixed fulcrum, the longer. The rail lengths of the bogie rails 31a to 31f and 33a to 33f (see FIG. 2) are the same.

  Further, the radii of the guide rails 32a to 32f and 34a to 34f are smaller as they are closer to the fixed fulcrum (that is, the ascending line side fixed girder A1 and the descending line side fixed girder B1), and the radius farther from the fixed fulcrum Has been. That is, the radius of the guide rails 32a and 34a is minimized, the radius is gradually increased as the distance from the fixed fulcrum is increased, and the radius of the guide rails 32f and 34f is maximized. The radii of the bogie rails 31a to 31f and 33a to 33f (see FIG. 2) are the same.

  Here, the centers of curvature P1a to P1f of the guide rails 32a to 32f are located on the movable girders 11a to 11f side (that is, the imaginary line C2 side) adjacent to the imaginary line C1, and the curvatures of the guide rails 34a to 34f are located. The centers P2a to P2f are located biased toward the movable girders 10a to 10f adjacent to the virtual line C2 (that is, the virtual line C1 side).

  The movable girders 10a to 10f and 11a to 11f all have the same girder length, and the support positions by the bogie devices 20a to 20e are also the same positions. Therefore, the guide rails 32a to 32e and 34a to 34e The intervals in the imaginary lines C1 and C2 directions are equal. Further, since the carriage rails 31a to 31f and 33a to 33f (see FIG. 3) are concentric with the guide rails 32a to 32f and 34a to 34f as described above, their centers of curvature are the centers of curvature P1a to P1f, P2a to P2f.

  Next, with reference to FIG. 5, the support structure of the movable girders 10a to 10f by the cart devices 20a to 20e will be described. FIG. 5 is a partially enlarged side view of the branching device 100 and corresponds to the state of FIG. 1A (that is, a state in which a reference course is formed by disposing the movable girders 10a to 10f at the reference position). Since the support structures of the movable girders 10a to 10f and 11a to 11f by the carriage devices 20a to 20e are the same structure, only the support structure of the movable girders 10d and 10e by the carriage device 20d will be described below. Description of other support structures is omitted.

  As shown in FIG. 5, the movable girders 10d and 10e are fixed to the carriage device 20d at one end thereof (the up line side fixed girder A1 side (see FIG. 1), the left side of FIG. 5). At the same time, the other of the opposite ends (upward line side fixed beam A2 side (see FIG. 1), right side in FIG. 5) is connected to the carriage device 20d so as to be rotatable around a vertical axis L (see FIG. 8). ing.

  In other words, the movable girders 10a to 10f are such that the rear end side (right side in FIG. 5) of the branching device 100 (that is, the side that has a large amount of movement when the traveling route is switched) is the cart devices 20a to 20e and the rear end side cart. While fixed to the device 20f, the end of the branching device 100 (the left side in FIG. 5) (that is, the side with a small amount of movement when switching the traveling route) is perpendicular to the base M and the cart devices 20a to 20e. It is rotatably connected around L.

  Next, the detailed configuration of the cart apparatuses 20a to 20e will be described with reference to FIGS. 6 is a cross-sectional view of the branching device 100 taken along line VI-VI in FIG. As described above, since the bogie devices 20a to 20e have the same configuration, the bogie device 20d will be described here, and the description of the other bogie devices 20a to 20c and 20e will be omitted.

  As shown in FIGS. 5 and 6, the carriage device 20 d includes a base part 210, a pair of wheel holding parts 220 disposed on the lower surface side of the base part 210, and the pair of wheel holding parts 220. In addition, a guide portion 230 is provided on the lower surface side of the base portion 210.

  The pedestal 210 is a member that forms a skeleton of the cart device 20d, and is formed in a flat plate shape from a steel material. The wheel holding unit 220 functions as a drive unit that moves the carriage device 20d and also functions as a support unit that supports the weight (vertical load) of the movable girders 10d and 10e. ) Are disposed on the lower surface side of the base 210 and at one end and the other end of the movable beam 10d in the width direction (left and right direction in FIG. 6).

  The wheel holding unit 220 includes two wheels 221 arranged in series, a holding unit main body 222 that rotatably supports both the wheels 221, and the base unit 210 in a state where the holding unit main body 222 can swing. A holding unit 223 for holding, and a driving device 224 for applying a rotational driving force to one of the two wheels 221 are provided.

  The two wheels 221 are formed to have the same diameter, and are pivotally supported on one side (the right side in FIG. 6) and the other side (the left side in FIG. 6) of the holding unit main body 222, and the rolling direction (the left and right direction in FIG. 6). Are arranged at predetermined intervals. The two wheels 221 are arranged in a line along the bogie rail 31d. That is, the rotation shaft of each wheel 221 is parallel to the normal direction of the bogie rail 31d (see FIG. 3) curved in an arc shape, and can roll on the bogie rail 31d. Further, flanges are not formed on both sides of the wheel 221. Therefore, the wheel 221 is movable (slidable) in the rail width direction of the carriage rail 31d.

  The holding part main body 222 is pivotally supported by the holding part 223 so that the intermediate point between both positions for supporting the two wheels 221 is pivoted, thereby bringing the one wheel 221 close to the carriage rail 31d. It can be swung in the direction (clockwise in FIG. 6) and in the direction in which the wheel 221 on the other side approaches the carriage rail 31d (counterclockwise in FIG. 6).

  As a result, since the two wheels 221 can be reliably grounded to the carriage rail 31d, the level management of the contact surface between the wheels 221 and the carriage rail 31d can be facilitated.

  Here, when the number of wheels 221 is increased (for example, when three or more wheels are pivotally supported on the holding portion main body 222 or when three or more wheels are directly pivotally supported on the base 210), the support of the cart device 20d is stabilized. In addition to being able to reduce the shared load of each wheel 221, it is difficult to manage the level of the ground contact surface between the wheel 221 and the bogie rail 31d. In this case, in the present embodiment, two wheel holding parts 220 having two wheels and one set of wheels 221 are provided, and each of the wheel holding parts 220 can swing together, so the number of wheels 221 is increased. Even in this case, the level control of the ground plane can be facilitated. That is, it is possible to achieve both the stabilization of the support of the cart device 20d, the reduction of the shared load of each wheel 221 and the easy level management of the ground plane.

  The drive device 224 is a rotary drive actuator such as an electric motor or a hydraulic motor, and is connected and fixed to the holding portion main body 222 via a connection arm 225. Since this driving device 224 is disposed in each of a plurality (two in this embodiment) of wheel holding units 220, a plurality of driving wheels (two in total in this embodiment) can be provided. Therefore, even when one drive system fails, the movement of the carriage device 20d can be ensured by the other drive system, so that it is possible to surely switch the traveling route of the vehicle by the branching device 100.

  In this case, since each drive wheel is pivotally supported by a separate wheel holding unit 220, even if the level accuracy of the ground contact surface between the wheel 221 and the carriage rail 31d is poor, The truck rail 31d can be reliably grounded. Therefore, when a plurality of drive wheels are provided, the rotational driving force of each drive wheel can be reliably transmitted to the carriage rail 31d, so that the transmission efficiency can be improved.

  The driving device 224 is disposed coaxially with the wheel 221 positioned outside the movable beam 10d in the width direction (left-right direction in FIG. 6). The driving device 224 uses the wheel 221 positioned outside as a driving wheel to generate rotational driving force. Give.

  Since such driving wheels are arranged outside the side surface (left and right side surfaces in FIG. 6) of the base portion 210, the driving device 224 can also be arranged outside the side surface of the base portion 210, so that a working space is secured. Thus, the maintenance workability of the driving device 224 can be improved. Further, in this way, by using the wheels 221 positioned outside the pair of wheel holding portions 220 as drive wheels, respectively, even if the carriage device 20d is moved in any direction, one drive wheel is The wheel that pushes the pedestal 210 through the holding part 223 and the other driving wheel can be the wheel that pulls the pedestal 210 through the holding part 223, so that the driving force can be stably exhibited as a whole. Can be made.

  The guide unit 230 functions as a guide unit that guides the moving direction of the carriage device 20d, and a load in the longitudinal direction (left and right direction in FIG. 5) is applied to the movable beam 10d by braking of the vehicle traveling on the movable beam 10d. When it acts, it is a part that functions as a support part that supports the load (horizontal load), on the lower surface side of the base part 210, and on the start end side (left side in FIG. 5) of the branch device 100 with respect to the wheel holding part 220. At the center of the movable beam 10d in the width direction (left and right direction in FIG. 6).

  Here, in the description of the guide unit 230, FIG. 7 is appropriately referred to in addition to FIGS. FIG. 7 is a schematic diagram schematically showing a top view of the guide portion 230. In FIG. 7, the guide main body 232 is indicated by a two-dot chain line, the base 210 is indicated by a broken line, and a part of the base 210 and the guide rail 32 d is not shown.

  The guide unit 230 includes a pair of guide rollers 231 that sandwich the guide rail 32d from both sides, a guide main body 232 that rotatably supports each of the guide rollers 231, and a state in which the guide main body 232 is rotatable. And a support shaft 233 that pivotally supports the base 210.

  A plurality of guide rollers 231 (a total of four wheels in the present embodiment) are formed to have the same diameter, and a plurality of sets of two wheels (two sets in the present embodiment) are arranged.

  That is, as shown in FIGS. 5 and 7, each pair of guide rollers 231 has the outer peripheral surfaces of the two wheels in contact with both side surfaces (the right side surface and the left side surface in FIGS. 5 and 7) of the guide rail 32d ( (Alternatively, a predetermined gap is provided between the both side surfaces of the guide rail 32d and the outer peripheral surface of the two wheels), and both sets are equidistant from the rotating shaft 01 of the support shaft 233 as shown in FIGS. Are arranged at a certain interval.

  As described above, since a plurality of sets of guide rollers 231 are attached to the guide main body 232, a plurality of sets of guide rollers 231 share a horizontal load that is shared when a horizontal load is applied to the base 210 from the movable girder 10d. It is possible to reduce the burden by distributing to each of the above. Accordingly, it is possible to select a material having a low strength as the material of the guide roller 231 itself or its shaft portion.

  Further, as shown in FIG. 5, since the guide rail 32d is arranged in parallel with the carriage rail 31d at a predetermined interval, the guide roller 231 can be increased in size (larger diameter) than the guide rail 32d. This leads to a reduction in the space formed between the carriage rails 31d (left and right direction in FIG. 5), and the workability of the operator when performing maintenance work or the like in this space is deteriorated. On the other hand, since each guide roller 231 can be reduced in size (smaller diameter) by providing a plurality of sets of guide rollers 231 as in the present embodiment, the guide rail 32d and the carriage rail 31d are correspondingly reduced. The workability can be improved by expanding the space between the two. Further, even when a plurality of sets of guide rollers 231 are provided, these are disposed along the guide rail 32d as shown in FIGS. 6 and 7, so that the space between the guide rail 32d and the carriage rail 31d is narrow. Can be avoided.

  When the rotation shaft 02 of each guide roller 231 and the rotation shaft 01 of the support shaft 233 are oriented in the vertical direction (the vertical direction in FIGS. 5 and 6) with respect to the movement plane of the carriage device 20d, the carriage device 20d moves. In other words, both guide rollers 231 roll on the side surface of the guide rail 32d, and the cart device 20d is guided along the guide rail 32d by the rolling.

  The outer peripheral surface of the guide roller 231 is formed as a flat surface having the same diameter along the axial direction (the vertical direction in FIGS. 5 and 6), and both side surfaces of the guide rail 32d (the rolling surface of the guide roller 231). Is formed as a flat surface parallel to the axial direction of the guide roller 231. Therefore, the guide roller 231 is movable in the rail height direction of the guide rail 32d (the vertical direction in FIGS. 5 and 6).

  Thus, since the guide part 230 is provided separately from the wheel holding part 220 in the base part 210 of the carriage device 20d, a horizontal load (for example, a horizontal load in FIG. 5) is applied from the movable girder 10d to the base part 210. ) Acts, the horizontal load can be supported by the guide roller 231 of the guide portion 230 being engaged with the side surface of the guide rail 32d.

  Therefore, since it is unnecessary to provide a flange on the wheel 221, the flange is not twisted with respect to the carriage rail 31d, and the wheel 221 can be smoothly rotated. Therefore, the durability of the wheels 221 can be improved, and the drive device 224 can be downsized to reduce energy consumption.

  In this case, as shown in FIGS. 5 to 7, the guide main body 232 has a plurality of sets of guide rollers 231 supported on the lower surface side so as to be rotatable about the rotation shaft 02, while the upper surface side is rotated. A support shaft 233 is rotatably connected to the base portion 210 with the shaft 01 as the center of rotation. Thereby, the base 210 is a case where the guide portion 230 is located at any position in the rail length direction of the guide rail 32d, or when the plurality of sets of guide rollers 231 are provided on the guide main body portion 232. Even if it exists, it can rotate to forward / reverse both directions (FIG. 7 clockwise or counterclockwise) centering on the rotating shaft 01 with respect to the guide part 230. FIG.

  Therefore, when the trajectory is changed, the guide main body 232 and the base 210 are rotated relative to each other via the support shaft 233 even when a corner bending displacement occurs between the movable girders 10d and 10e due to the movement of the carriage device 20d. (That is, as shown in FIG. 7, the base 210 is rotated around the rotation axis 01 with respect to the guide roller 231 engaged with the guide rail 32d and the guide main body 232 supporting the guide roller 231). Therefore, the burden on the guide portion 230 (that is, the guide roller 231 itself, the shaft portion that pivotally supports the guide roller 231 or the guide body portion 232 and the support shaft 233) can be reduced.

  Therefore, the durability of each part in the guide part 230 can be improved accordingly. In addition, it is possible to select a material having a low strength as a material of each part (for example, guide roller 231) of the guide part 230, and to reduce the size of the guide part 230 (for example, to reduce the diameter of the guide roller 231). It becomes possible, and the product cost can be reduced.

  Next, a connection structure between the carriage device 20d and the movable girders 10d and 10e will be described. In the carriage device 20d, the rear end side (right side in FIG. 5) of the movable girder 10d is fixed via the connection fixing portion 10d1, while the start end side (left side in FIG. 5) of the movable girder 10e is connected to the coupling mechanism 50 and the support mechanism 60. It is connected via a rotation. As a result, the adjacent movable girders 10d and 10e are coupled so as to be relatively rotatable and relatively movable in the longitudinal direction (left and right direction in FIG. 5).

  As shown in FIGS. 5 and 6, the connecting mechanism 50 is a part that connects the movable girder 10e to the carriage device 20d so as to be rotatable about a vertical axis L (see FIG. 8), and is fixed to the upper surface side of the carriage device 20d. The connecting shaft portion 51 is provided so as to hang down toward the movable beam 10e, and the shaft holding portion 52 is fixed to the lower surface side of the movable beam 10e and is inserted through the connection shaft portion 51 so as to be rotatable and linearly movable.

  As shown in FIG. 6, a pair of connecting and fixing portions 10d1 are arranged opposite to each other on both sides of the beam width direction with a predetermined interval therebetween. The pair of connecting and fixing portions 10d1 allows the movable beam 10d to be a carriage. While being fixed to the apparatus 20d, as shown in FIG. 5, the half (left side part of FIG. 5) of the connection mechanism 50 has entered between the opposing surfaces of the pair of connection fixing portions 10d1. Moreover, since the connection fixing | fixed part in each movable girder 10a-10c, 10e, 10f is the structure similar to the connection fixing | fixed part 10d1 in the movable girder 10d, the description is abbreviate | omitted.

  Here, with reference to FIG. 8, the detailed structure of the connection mechanism 50 is demonstrated. FIG. 8 is a cross-sectional view of the coupling mechanism 50 taken along line VIII-VIII in FIG. The connecting shaft portion 51 is formed as a cylindrical body having a circular cross section having a vertical axis L perpendicular to the moving plane of the carriage device 20d. The shaft holding portion 52 includes a slide groove 52a extending in the longitudinal direction (vertical direction in FIG. 8) of the movable beam 10e, and the connecting shaft portion 51 is inserted in the slide groove 52a. A pair of slide plates 53 are interposed between the connecting shaft portion 51 and the shaft holding portion 52.

  The pair of slide plates 53 have opposing surfaces formed in parallel to each other, and the interval between the opposing surfaces is set to be approximately equal to the outer diameter of the connecting shaft portion 51. The connecting shaft portion 51 can be rotated and movable. 10e is held so as to be able to move straight in only the longitudinal direction (vertical direction in FIG. 8). As a result, the movable girder 10e is relatively rotatable about the vertical axis L with respect to the carriage device 20d, and is relatively moved forward and backward along the longitudinal direction of the movable girder 10e (moves in the directions of arrows F and B in FIG. 8). Possible to be linked.

  Returning to FIG. 5 and FIG. Since the movable girder 10e is coupled to the carriage device 20d via the coupling mechanism 50 configured as described above, when the carriage device 20d is moved in the girder width direction (left-right direction in FIG. 6), the carriage device is used. The movement of 20d can be transmitted to the shaft holding portion 52 via the connecting shaft portion 51. As a result, the movable girder 10e and the movable girder 10d are relatively angularly displaced (inclined) using the connecting mechanism 50 as a joint. The movable girder 10e can be moved in the girder width direction.

  Even when the longitudinal direction (left and right direction in FIG. 5) of the movable beam 20e contracts or expands due to the influence of the outside air temperature, the connecting shaft 51 moves relative to the shaft holding portion 52 along the slide groove 52a. By doing so, contraction or extension of the length of the movable beam 10e in the longitudinal direction can be absorbed. Thereby, it can suppress that an excessive horizontal load acts on the connection part 50 and the guide part 230 of the trolley | bogie apparatus 20d, and can aim at the improvement of the durability. Further, since the contraction or expansion of the plurality of movable girders 10a to 10f is not accumulated in the branching device 100 as a whole, only the single-digit contraction or expansion can be generated. A gap between the movable girders 10f and 11f and the movable girders 12f and 13f can be set small. As a result, the step when the vehicle travels can be reduced, so that the impact of the vehicle when passing through the step can be suppressed, and the vehicle can travel smoothly.

  In this way, in the configuration in which the movable girder 10e is connected to the carriage device 20d via the connection mechanism 50, the movement of the carriage device 20d is likely to vary from the other carriage devices before and after the traveling direction at the time of track change. Since the angular displacement between the movable girders is increased, the load on the guide portion 230 is increased. Therefore, as described in the present embodiment, the above-described configuration in which the guide main body portion 232 and the base portion 210 are coupled so as to be relatively rotatable is particularly effective, thereby suppressing the influence of expansion and contraction of each movable girder due to a temperature change. It is possible to achieve both the effect and the effect of reducing the burden on the guide unit 230.

  The support mechanism 60 is a portion that supports the movable girder 10e so as to be movable in the horizontal direction with respect to the carriage device 20d, and is on both sides of the girder width direction (left and right direction in FIG. 6) of the movable girder 10e. At a position on the rear end side (right side in FIG. 5) of the branching device 100, it is interposed between opposing surfaces of the upper surface side of the carriage device 20d and the lower surface side of the movable beam 10e.

  A part of the support mechanism 60 is composed of a rubber base composed of a rubber-like elastic body, and a metallic laminated plate that is embedded in the rubber base and laminated at a predetermined interval. Therefore, due to the elastic characteristics of the rubber base, the support mechanism 60 is not only in the compression / tensile direction (FIG. 5 and FIG. 6 vertical direction) and the shear direction (FIG. 5 and FIG. 6 horizontal direction), but also in the bending direction (the upper surface of the cart device 20d). Can be elastically deformed in the direction from the parallel state to the non-parallel state between the opposing surfaces of the movable girder 10e and the lower surface side of the movable girder 10e, and thereby the distance between the movable girder 10e and the carriage device 20d. (Dimensions in the vertical direction in FIGS. 5 and 6) can be changed.

  Therefore, when a girder deflection (bending deformation) occurs while passing through the vehicle, the girder deflection can be absorbed by the elastic deformation of the rubber base in the support mechanism 60, and as a result, the load on the guide portion 230 is reduced. Can be reduced. Therefore, the durability of each part in the guide part 230 can be improved accordingly. In addition, it is possible to select a low-strength material for each part of the guide part 230, and it is possible to reduce the size of the guide part 230, thereby reducing the product cost.

  Further, since a plurality of laminated plates are embedded in the rubber substrate, the rigidity of the bearing mechanism can be ensured while exhibiting the deformability of the support mechanism. Therefore, while the distance between the movable girder 10e and the carriage device 20d can be changed by elastic deformation of the rubber base, the vertical load from the movable girder 10e is supported, and the movable girder 10e in the horizontal direction with respect to the carriage device 20d is supported. Can be moved stably.

  In addition, the start end side end of the movable girders 10a and 11a located on the start end side of the branching device 100 supports the up line fixed girder A1 and the down line fixed girder B1 via the connecting mechanism 50 and the support mechanism 60 described above. The base M is connected to the base M so as to be rotatable about the vertical axis L (see FIG. 2B). That is, the connecting shaft portion 51 is fixed to the upper surface of the base portion M, and the shaft holding portion 52 through which the connecting shaft portion 51 is inserted is fixed to the lower surface side of the movable girders 10a and 11a (not shown). ).

  Moreover, the rear end side end portions of the movable girders 10f and 11f located on the rear end side of the branching device 100 are supported by the rear end side cart device 20f (see FIG. 2B). The rear end side cart device 20f is different from the above-described cart devices 20a to 20e only in that the base portion is formed smaller than the base portion 210 and the connecting mechanism 50 and the support mechanism 60 are omitted. Since other configurations are the same, the description thereof is omitted.

  Next, with reference to FIG. 9, the change in the track length when the reference course is formed and when the branch course is formed will be described. FIG. 9 is a partially enlarged top view of the branching device 100, and FIGS. 9A and 9B correspond to FIGS. 1A and 1B, respectively. As described above, the movable girders 10a to 10f and 11a to 11f and the movable girders 12a to 12f and 13a to 13f have the same configuration except that the installation directions are different. Will be described only, and description of the movable girders 12a to 12f and 13a to 13f will be omitted.

  As shown in FIG. 9A, the branching device 100 is configured such that the gap between the movable girders 10a to 10f and 11a to 11f is set to t1 and is movable with the movable girders 10f and 11f when the reference course is formed. A gap between the digits 12f and 13f is set to t2.

  In this case, the branch device 100 is connected to one end of the movable girders 10a to 10f and 11a to 11f to the cart devices 20a to 20e via the connecting mechanism 50 so as to be rotatable and relatively movable in the longitudinal direction (FIG. 5). The guide rails 32a to 32f and 34a to 34f are located at the fixed fulcrum (upline fixed girder A1 and downline fixed girder B1) and the curvature centers P1a to P1f and P2a to P2f are far from the fixed fulcrum. The center of curvature P1a to P1f, P2a to P2f is biased to one side from the center in the digit width direction (that is, the center of curvature P1a to the guide rails 32a to 32f on the upstream line side). (P1f is biased to the down line side from the virtual line C1, and the curvature centers P2a to P2f of the guide rails 34a to 34f on the down line side are biased to the up line side from the virtual line C2) It is location (see FIG. 4).

  Therefore, from the state where the reference course as the straight section shown in FIG. 9A is formed, the carriage devices 20a to 20e and the rear end side carriage device 20f move along the guide rails 32a to 32f, 34a to 34f, When the branch path as the curve section shown in FIG. 9B is formed, the gap between the movable girders 10a to 10f is expanded to t3 larger than t1 (t1 <t3). ), Orbital length (the total length of the movable girders 10a to 10f) can be increased.

  That is, as shown in FIG. 9 (b), when it is necessary to lengthen the entire length of the trajectory with the transition from the straight section to the curved section, the extension between the movable girders 10a to 10f is expanded. You can make up for it. On the other hand, as shown in FIG. 9 (a), when it is necessary to shorten the entire length of the track due to the change from the curved section to the straight section, the clearance between the movable girders 10a to 10f is reduced by the shortened portion. Can be absorbed. As a result, it is possible to suppress restrictions when the branch device 100 is arranged, and accordingly, the degree of freedom in arrangement of the branch device 100 can be increased.

  For the movable girders 11a to 11f, the gap between the movable girders 11a to 11f is reduced to t4a to t4e smaller than t1 (t4a to t4e <t1), and the track length (the total length of the movable girders 11a to 11f). ) Is shortened.

  The present invention has been described above based on the embodiments. However, the present invention is not limited to the above embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. It can be easily guessed.

  The numerical values given in the above embodiments are merely examples, and other numerical values can naturally be adopted. For example, in the above embodiment, the case where the branching device 100 includes the six movable girders 10a to 10f has been described. However, the number of such movable girders may be five or less, and may be seven or more. Also good. Similarly, any number of wheels 221 and guide rollers 231 can be set.

  In the said embodiment, although the connection shaft part 51 was fixed to the base part M and the trolley | bogie apparatus 20a-20e, and the shaft holding part 52 was fixed to the movable girders 10a-10f, the case where the connection mechanism 50 was comprised was demonstrated. It is not necessarily limited to this, and it is naturally possible to configure it upside down. That is, the connecting shaft portion 51 is fixed to the lower surface of the movable girders 10a to 10f, and the shaft holding portion 52 is fixed to the base portion M and the upper surfaces of the cart devices 20a to 20e so that the connecting shaft portion 51 is penetrated. The coupling mechanism 50 may be configured.

  In the above embodiment, the carriage devices 20a to 20e and the rear end side carriage device 20f are wheels 221 that roll on the upper surface of the carriage rails 31a to 31f and the guides that roll on both sides of the guide rails 32a to 32f. Although the case where the roller 231 is provided has been described, the invention is not necessarily limited thereto, and the carriage rails 31a to 31f and the guide roller 231 and the guide roller 231 are omitted, and the wheel 221 is provided with a flange for supporting a horizontal load. It is good also as a structure which the attached wheel 221 rolls on upper surfaces, such as guide rail 32a-32f. That is, “the carriage device moving along the guide rail” according to claim 1 is configured such that the carriage device is guided by the guide rail by rolling a pair of guide rollers on both side surfaces of the guide rail. This is intended to include both the configuration in which the carriage device rolls on the upper surface of the guide rail and the carriage device is guided by the guide rail.

  In the above embodiment, only the case where the movable girders 10a to 10f and the movable girders 13a to 13f are connected to form a branch path has been described. However, the present invention is not necessarily limited to this, and the movable girders 11a to 11f and the movable girders are movable. Of course, it is possible to form a branch path by connecting the beams 12a to 12f.

  Moreover, although movable girder 10a-10f, 11a-11f and movable girder 12a-12f, 13a-13f were opposingly arranged and the same upper and lower same lines were connected, or the case where different lines were connected was explained, For example, only the movable girders 10a to 10f are provided, and the last movable girder 10f of the movable girders 10a to 10f is connected to the first fixed girder and the second fixed girder. As such, a configuration for changing the trajectory may be used.

  In the above embodiment, the case where the support mechanism 60 is configured to be elastically deformable, that is, provided with a rubber base has been described. However, the present invention is not necessarily limited to this, and the support is omitted without the rubber base. The mechanism 60 may be configured. That is, the entire member corresponding to the elastic portion may be made of a metal material, and the slide portion may be fixed to the member made of this metal material.

  Further, the support mechanism 60 does not necessarily include a sliding mechanism, and may be made to correspond to the movement of the movable girders 10a to 13f in the horizontal direction with respect to the base portion M and the cart devices 20a to 20e by elastic deformation. That is, the support mechanism may be constituted by an elastic support. Here, an example of this elastic bearing will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the part same as the said embodiment, and the description is abbreviate | omitted. FIG. 10 is a cross-sectional view of a support mechanism 1060 configured as an elastic support.

  As shown in FIG. 10, the support mechanism 1060 includes a base 62 fixed to the upper surface of the carriage device 20d, a pair of connecting plate portions 1064 fixed to the upper surface of the base 62 and the lower surface of the movable girder 10e, An elastic part 1063 fixed between the pair of connecting plate parts 1064 is provided, and the elastic girder 1063 supports the movable girder 10e so as to be movable in the horizontal direction with respect to the carriage device 20d.

  The elastic portion 1063 includes a plurality of rubber bases 1063a formed in a disk shape from a rubber-like elastic body, and a plurality of laminated plates 1063b formed in a disk shape from a metal material. 1063a and laminated plates 1063b are alternately laminated.

  In the above embodiment, a case has been described in which one guide roller 231 is provided on each of the one side and the other side of the guide rail 32d, and the guide rail 32d is sandwiched from both sides by the two guide rollers 231. Of course, the guide rails 32d may be sandwiched from both sides by a total of three or more guide rollers 231. For example, one guide roller 231 is disposed on one side of the guide rail 32d, and two guide rollers 231 are disposed on the other side of the guide rail 32d, and the guide rail 32d is sandwiched from both sides by the total of three guide rollers 231. It is good also as a structure.

100 Branching devices 10a to 10f, 11a to 11f Movable girders 12a to 12f, 13a to 13f Movable girders 10a, 11a, 12a, 13a
20a-20e Dolly device 20f Rear end side dolly device (part of dolly device)
210 stand 221 wheel 224 driving device 230 guide 231 guide roller 232 guide main body 233 guide connecting shafts 31a to 31f, 33a to 33f bogie rails 32a to 32f, 34a to 34f guide rail 50 connecting mechanism (connecting member)
A1, A2 Upline fixed girder (part of start end fixed girder)
B1, B2 Down line side fixed girder (part of start side fixed girder)
P1a to P1f, P2a to P2f Center of curvature

Claims (2)

A plurality of movable girders arranged in the longitudinal direction to form a traveling path of the vehicle, and a carriage device on which opposite ends of the plural movable girders are mounted and moved along a guide rail laid. A branching device that switches a traveling route of the vehicle by connecting the most movable movable beam of the plurality of movable beams to a fixed beam of the starting end and moving the carriage device along the guide rail. There,
A connecting member for connecting at least one of the opposed ends of the movable beam to the carriage device so as to be rotatable and relatively movable in the longitudinal direction;
The guide rail is formed in an arc shape in which the center of curvature of each guide rail is separately positioned on the start-end side fixed girder, and the radius is larger as it is farther from the start-end side fixed girder, and the center of curvature is the girder A branching device, wherein the branching device is biased to one side in the digit width direction from the width direction center.   The cart device includes a platform on which opposite ends of the movable beam are mounted, a wheel that supports the platform and rolls on an upper surface of the cart rail laid along the guide rail, One or more sets of guide rollers that roll on both side surfaces of the guide rail, a guide main body portion to which the guide rollers are attached, and a guide connecting shaft that rotatably connects the guide main body portion to the base portion. And a branching device.

Images