JP2006240349A - Gangway footplate device of railroad vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a gangway footplate device without interfering with a lower part of a bellows in traveling, by thinning a mechanism, in a structure of a through-passage for a railroad vehicle having a gangway footplate. <P>SOLUTION: Two shafts 3 orthogonally extending downward to its gangway footplate 2, are fixed to an under surface of the gangway footplate 2. A pinion gear 4 is rotatably supported by its respective shafts 3. A pair of racks 5a and 5b having one end supported by both side aprons 1a and 1b are oppositely meshed with the respective pinion gears 4, and its respective racks 5a and 5b are stored in a case 40 for penetrating the shafts 3 under the gangway footplate 2 together with the pinion gears 4, and are constitutes so as to movably guide in substantially parallel to the gangway footplate 2, and the aprons 1a and 1b and the gangway footplate 2 are engaged by two sets of rack pinion mechanisms. The rack pinion mechanism is a mechanism for positioning a rack and the pinion gear on the same plane, and is easily thinned as compared with a case when superposing and joining a link like a conventional pantograph mechanism. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a jumper device for communicating passages between passenger cars connected to each other by a coupler.

  As illustrated in the perspective views in FIGS. 6A and 6B, the through-passage for passengers to pass between the passenger cars connected by the coupler is configured by a holo 61 and a crossover facility 62. Generally, the structure is a combination of the outer material and the bone, and conventionally, as the transition equipment 62, a sun board configuration as shown in (A) and a sun board / crossover board configuration as shown in (B) are generally used. ing.

  The crossover equipment has a structure that can smoothly expand and contract and bend in response to forward / backward / left / right / up / down displacement when the vehicle passes a steep slope or curved portion. Among the above-mentioned transit facilities, the sun plate configuration is a structure in which the sun plates 621 are respectively projected from the end portions of the vehicle and are superposed on each other.

On the other hand, the sun plate / crossover plate configuration is a configuration in which a short sun plate 622 is projected from an end portion of the vehicle, and a tortoiseshell-like cross plate 623 is overlaid thereon (see, for example, Patent Document 1). In this sun plate / crossover plate configuration, as shown in the plan view of FIG. 7 and the longitudinal cross-sectional view of FIG. 8, the sun plate 622 and the cross plate 623 are joined via the pantograph mechanism 624, and traveled on a curved track or the like. When the vehicle is bent, the links L of the pantograph mechanism 624 are rotated with respect to the pins P joining them, so that the pantograph mechanism 624 is deformed so that the plate 623 can follow the bending between the vehicles. It has become.
JP 2000-6799 A

  By the way, in general, in railway vehicles, the height of the coupler is often the same in all vehicle types in consideration of the combination at the time of rescue. When the floor surface height is lowered in order to reduce the step between the height of the side doorway and the home height while keeping the height of the coupler constant in this way, it results from the configuration of the through passage located on the coupler. As a result, there is a slight level difference between the passenger compartment floor and the through passage. In order to eliminate the level difference on the sun plate or the vehicle body side, for example, in the suburbs and express trains with cross seat arrangement, some vehicles have a slope structure between the passenger compartment floor and the throughway. It can be seen.

  In order to respond to barrier-free demands in recent years, it is necessary to lower the floor of the guest room more than ever in order to reduce the level difference between the platform and the floor of the guest room. However, if it is going to be flat, it is necessary to lower the crossover equipment. In this case, the gap between the holo lower portion 61a and the lower structure of the crossover plate 623 shown in FIG. Arise.

  In addition, if the construction of only the sun plate is adopted for the crossover equipment, the above problem of interference does not occur because there is no crossover plate. I can't respond. By adopting the bridge plate configuration, it is possible to construct a safer passageway than the sun plate configuration and cope with flattening, but the pantograph mechanism 624 existing below the bridge plate is located at the position of the pin P. Since the structure supports a plurality of links L stacked one above the other, there is a limit to making the mechanism thin, and as long as this structure is employed, it is difficult to avoid interference with the lower part of the holo. . Moreover, in the transition board equipment using this pantograph mechanism 624, after attaching the sun board 622 to the vehicle body side, the transition board 623 is attached to the sun board 622 with the four pins P ′. At the same time, there is also a problem that the reverse procedure is required even during removal, which is troublesome.

  The present invention has been made in view of such circumstances, and it is possible to reduce the thickness of the mechanism with a structure of a through passage provided with a safer crossing board, and to lower the vehicle floor surface and to adjust the through passage accordingly. The main problem is to provide a crossover device for a railway vehicle that does not cause interference with the lower part of the holo when traveling. Another object of the present invention is to provide a railroad vehicle crossing board device capable of facilitating the attachment and removal of a sun board and a crossover board.

  In order to solve the above-described problems, a railroad vehicle crossing board device according to the present invention is provided on a sunplate that is provided at each vehicle end and faces each other so as to communicate a path of a railcar connected to each other by a coupler. A transition plate device in which a transition plate is inserted, and on the lower surface side of the transition plate, two shafts extending downward perpendicular to the transition plate are fixed, and a pinion gear rotates on each shaft. Each of the pinion gears is meshed so that a pair of racks, one end of which is supported via pins on the both sides of the pinion gears, are opposed to each other, and each pair of pinion gears meshed with each pinion gear. The rack is provided with a pinion gear that meshes with each other, and is housed in a case through which the shaft passes and is moved so as to move substantially parallel to the jumper plate. It is de, and each of these racks is characterized by being supported loosely with respect to the pin (claim 1).

  Here, in the present invention, each pinion gear and each rack have the same thickness, and each case sandwiches the pinion gear and each rack with a slight gap with respect to the upper and lower surfaces (claims). Item 2) can be preferably employed.

  The present invention replaces a conventional pantograph mechanism as a mechanism for following the front and rear, left and right, and up and down in a through passage having a structure in which a cross board is placed on sun boards attached to vehicles connected to each other. By adopting a rack and pinion mechanism, the problem is solved.

  That is, in the present invention, the bridge plate is connected to the sun plates on both sides via two sets of rack and pinion mechanisms. In the conventional pantograph mechanism, as described above, it is necessary to superimpose a plurality of links L at the pin joint portion, whereas in the rack and pinion mechanism, the rack and the pinion gear are arranged on the same plane, Therefore, it is possible to cope with the reduction in thickness.

  In addition, each rack that meshes with a pinion supported by a shaft fixed to the jumper plate and that is supported at one end via a pin by the sun plate is housed and guided in a case through which the shaft passes. Therefore, it is possible to integrate the crossing plate and the sun plate, and two sets of rack and pinion mechanisms interposed between them, so that attachment / detachment to / from the vehicle is easy, and maintenance is improved.

  Here, in the configuration of the present invention, the crossing position of the pair of racks, each of which is supported at one end by the opposing sun plates, with respect to the pinion gear is changed, thereby realizing the movement of the crossover plate in the front-rear and left-right directions (see FIG. 4), and by supporting each rack loosely via a pin on each sun plate, the cross plate can be moved up and down (see FIG. 5), which is equivalent to a conventional cross plate device using a pantograph mechanism. It has a function to follow up / down / left / right / up / down.

  Further, as in the invention according to claim 2, by using a case in which the pinion gear and each rack have the same thickness and are sandwiched between the upper and lower surfaces with a slight gap, this rack and pinion mechanism is made possible. Can be thinned.

  According to the present invention, in the transition board device provided with the transition board on the sun board, it is possible to realize a reduction in thickness as compared with the conventional transition board apparatus in which the transition board is engaged with the sun board via the pantograph mechanism. This makes it possible to flatten the through-passage while reducing the level difference between the platform and the guest room floor to accommodate barrier-free operation, and at the same time, it is easy to attach and remove the sunboard and crossover board, and to perform maintenance. Improves.

  In addition, the pantograph mechanism has a complicated structure and large gaps between the links, so noise is generated during operation.The rack and pinion mechanism is simple in structure and has a small gap at the meshing portion, so that it can reduce noise during operation. is there.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line AA.

  Sun plates 1a and 1b are attached to the end portions of the vehicles via hinges 10a and 10b so as to be continuous with the passage R, and a jumper plate 2 is disposed on the opposed sun plates 1a and 1b. Yes. Two shafts 3 are fixed vertically on the lower surface of the bridge plate 2, and pinion gears 4 are rotatably supported on the shafts 3 with a predetermined gap.

  Each of the sun plates 1a, 1b is formed with two folded portions 11a, 11b folded downward, and vertical pins 12a, 12b are attached to the folded portions 11a, 11b, respectively. One end of each of the racks 5a and 5b is loosely supported by the pins 12a and 12b with a predetermined gap. The racks 5a and 5b are engaged with the pinion gear 4, respectively.

  That is, each pinion gear 4 includes a rack 5a having one end supported by one sun plate 1a via a pin 12a, and a rack 5b having one end supported by the other sun plate 1b via a pin 12b. , They are meshed so as to face each other. The thickness of each pinion gear 4 and each rack 5a, 5b is equal to each other.

  Each pinion gear 4 is accommodated in a case 40 through which the shaft 3 passes. The case 40 also houses a pair of racks 5 a and 5 b that mesh with the pinion gear 4. FIG. 3 is a perspective view of a main part with the lower surface of the case 40 facing upward. The case 40 includes a base body 41 and a lid body 42. Between the base body 41 and the lid body 42, the pinion gear 4 and the racks 5a and 5b having the same thickness have a slight gap in the plate thickness direction. The vertical movement of each rack 5a, 5b is regulated by being sandwiched.

  Further, in each case 40, two guide members 43 are fixed between a pair of racks 5a and 5b, and the left and right directions of the racks 5a and 5b are formed by the guide member 43 and the side wall portion of the lid body 42. Movement in the direction of approaching / separating from the pinion gear 4 is restricted. With such a configuration, the racks 5 a and 5 b are moved only in the front-rear direction within the case 40.

  In FIG. 3, the protrusions 51a and 51b formed on the racks 5a and 5b function as stoppers for fitting into the grooves 44 provided in the case 40 and restricting the retracted ends. Further, a flange portion 30 is screwed to the lower end of the shaft 3, and this flange portion 30 prevents the jumper plate 2 from being pulled upward, and if the flange portion 30 is removed, the jumper plate 2 is attached to the shaft 3. At the same time, it can be pulled upward.

  In the embodiment of the present invention having the above configuration, the crossover plate 2 is engaged with the opposing sun plates 1a and 1b by two sets of rack and pinion mechanisms. When the vehicle passes through the curved portion, as shown in the plan view of FIG. 4, of the two sets of rack and pinion mechanisms, the one positioned on the inner side of the bend is that the racks 5a and 5b are equal in amount to the counterpart vehicle. In the case where the rack 5a, 5b moves backward so as to approach the other vehicle, the crossing plate 2 follows back and forth, right and left by moving backward so that each rack 5a, 5b is separated from the opponent vehicle by an equal amount. It is maintained on the center line between the sun plates 1a and 1b facing each other.

  Further, when the vehicle passes through a steep slope or when the vehicle fluctuates up and down, one end is loosely supported with respect to the pins 12a and 12b of the sun plates 1a and 1b, as shown in a cross-sectional view in FIG. The racks 5a and 5b are inclined with respect to the respective sun plates 1a and 1b, so that the crossing plate 2 follows up and down and maintains a state where it is passed to both of the sun plates 1a and 1b facing each other.

  In the above-described embodiment of the present invention, a point to be particularly noted is that the sun plates 1a and 1b and the crossing plate 2 are engaged by two sets of rack and pinion mechanisms. This rack and pinion mechanism is conventionally used. In the pantograph mechanism that has been used, it is necessary to overlap each link at the portion where the pins are joined. On the other hand, the pinion gear 4 and the racks 5a and 5b mesh with each other on the same plane. As a result, it is possible to prevent the lower structure of the transition board from interfering with the lower part of the holo even if the through passage is flattened in a state where the floor of the guest room is lowered to make the step between the platform and the floor of the guest room smaller. it can.

  Each rack 5a, 5b is housed in a case 40, one end of which is supported by the sun plates 1a, 1b via pins 12a, 12b and engaged with the transition plate 2 via the shaft 3. The sun plates 1a and 1b, the crossover plate 2 and the rack and pinion mechanism can be removed integrally, and at the same time, only the crossover plate 2 can be removed by removing the flange portion 30 of the shaft 3, and furthermore, the pins 12a and 12b. It is also possible to remove the crossover plate 2 and the rack and pinion mechanism while leaving the sun plates 1a and 1b by removing the plate, which is easier to install and remove than the conventional crossover device using the pantograph mechanism, and maintenance. Improves.

It is a top view of an embodiment of the invention. It is AA sectional drawing of FIG. It is a principal part perspective view which shows the lower surface of case 40 in the embodiment of this invention in the upper side. It is an embodiment top view of the present invention when a vehicle passes a bent part. It is sectional drawing of embodiment of this invention when a vehicle passes a steep slope and when it fluctuates up and down between vehicles. It is a perspective view which shows the structural example of the penetration path of a rail vehicle, (A) is a sun board structure, (B) is a figure which shows the example of a sun board and a crossing board structure. It is a top view showing the structural example of the conventional sun board / bridge board structure. It is a longitudinal cross-sectional view of the example of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a, 1b Sun board 10a, 10b Hinge 11a, 11b Folding part 12a, 12b Pin 2 Transition board 3 Axis 30 Flange part 4 Pinion gear 40 Case 41 Base body 42 Cover body 43 Guide member 5a, 5b Rack

Claims (2)

In order to connect the passages of the railway vehicles that are connected to each other by a coupler, a transition board device is provided in which a transition board is provided on a sun board that is provided at each vehicle end and faces each other,
Two shafts extending perpendicularly to the transition plate are fixed to the lower surface side of the transition plate, and pinion gears are rotatably supported on the respective shafts. Each pair of racks meshed with each other so that a pair of racks, one end of which is supported via pins, are opposed to each other, and the respective pinion gears mesh with the respective pinion gears. It is provided and accommodated in a case through which the shaft passes, and is guided so as to move substantially in parallel with the bridge plate, and these racks are loosely supported with respect to the pins. Crossing board device for railway vehicles.   The said each pinion gear and each rack are mutually the same thickness, The said each case has pinched these pinion gears and each rack with a slight clearance with respect to the upper and lower surfaces, The Claim 1 characterized by the above-mentioned. Railroad vehicle transition board device.

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