JP2012218690A - Slide-push type door device for railroad vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door device having the push function, capable of coping with both of single sliding and double sliding, and capable of reliably shielding a sound from the vehicle outside while being compact, without particularly increasing a required space to the door device of a conventional door pocket structure.SOLUTION: This railroad vehicle door device of the door pocket structure includes, on an upper rail (a load rail) 23: a sleeper directional guiding mechanism (such as a guide groove 24) for guiding sliding doors 1a and 1b outside in the sleeper direction just before the sliding doors 1a and 1b reach a closing state when moving the sliding doors 1a and 1b toward the closing state by driving of a linearly moving actuator (for example, an air cylinder) 21 for opening-closing the door; and a vertical directional guiding mechanism (such as an inclined face of the load rail 23) for guiding the sliding doors 1a and 1b downward. This railroad vehicle door device is configured such that the sliding doors 1a and 1b are pressed to a sidewall part of a vehicle body structure B and a shoe rubbing part B' in their closing state.

Description

  The present invention relates to a door device provided at a doorway provided on a side wall of a railway vehicle, and more particularly to a door device having a door pocket structure.

  As the structure of a doorway provided on the side wall portion of a railway vehicle, that is, a door that opens and closes a side doorway, a so-called door pocket structure is frequently used. In this door pocket structure, the side doorway is opened and closed by a sliding door, and when the side doorway is opened, the sliding door is accommodated in a space (door pocket) formed between the side wall of the vehicle structure and the interior material. It consists of one or two doors depending on the width of the entrance / exit, and mainly operates by opening and closing the conductor. In addition, each side sliding door is provided with a function to mechanically detect that the sliding door is closed securely by the closing operation, and only when it is detected that the sliding door is closed at the time of departure of the vehicle. Driving.

  In a door device having such a door pocket structure, generally, an upper rail (J shape) is arranged on the carcass part on the vehicle body side, and a lower rail is arranged on the shoe rubbing part, while a door hanging metal on the upper part on the sliding door side, A groove is attached to the lower end, a door wheel is fitted into the groove of the upper rail, and the groove is fitted to the lower rail. A direct acting actuator such as a direct acting air cylinder is mainly used as a power source, and the sliding door is opened and closed in the direct acting direction. As described above, the sliding door is housed between the vehicle structure and the interior material (for example, patents). Reference 1).

  Other door structures for railway vehicles include a slide door structure and a plug door structure. The sliding door structure has a structure in which a rail is arranged on the upper part of the door closing device, and the sliding door is opened along the rail while coming out of the vehicle. An electric motor is mainly used as a power source, and the sliding door is opened and closed by rotating a ball screw-shaped rod (see, for example, Patent Document 2).

  Further, the plug door structure is a structure having the functions of the door pocket structure and the sliding door structure described above, and rails are arranged on the upper and lower parts, and the sliding door is opened and closed using a cylinder as a power source. In order to maintain airtightness, a structure is used in which the sliding door is pressed against the vehicle structure by an actuator different from the secondary power, that is, the door opening / closing actuator (see, for example, Patent Document 3).

JP 2009-24352 A Japanese Patent Laid-Open No. 10-317796 JP 2008-174149 A

  By the way, in the door structure of each structure described above, in the slide door structure, parts such as an upper rail, a door closing machine, a connecting part between the door closing machine and the door are unitized, and the side sliding door is supported by the unit. Therefore, it is a robust heavy structure. Therefore, there is a problem that the mounting seat of the vehicle structure needs to be strengthened, and the weight of the vehicle structure itself increases. In addition, it is necessary for a plurality of people to perform the attachment until the temporary attachment is performed by lifting with a dedicated jig, and it is necessary to adjust the liner, which causes a problem that the attachment operation is difficult.

  On the other hand, the plug door structure takes measures to press the sliding door outward by secondary power when the gap between the vehicle structure and the door is closed as described above, but this structure can be applied to a single door, There is a problem that it cannot be applied to doors. In addition, this plug door structure has a problem that the structure is complicated and expensive because a plurality of actuators are required.

  On the other hand, the door pocket structure is a relatively simple structure, and has an advantage that it can be applied to both a single opening and a double opening, and also has an advantage that it is compact and has little protrusion.

  Here, in this door pocket structure, conventionally, as a countermeasure against sound entering from the outside of the vehicle, a countermeasure is often used in which the gap is closed with a sponge rubber having a coating process applied to the vehicle structure and the cabin side, and a moquette or the like. This measure is mainly attached to the side and the duck part, but there are many places where the gap is not blocked. In addition, there is a problem that the effect of blocking sound from the outside may not be sufficiently exhibited, for example, countermeasure elements deteriorate due to secular change.

  Moreover, the sliding door parts of a door pocket structure are the structures attached, adjusting individually, such as a cylinder for opening and closing, an upper rail, a lower rail, and a connection part of a cylinder and a sliding door. In particular, the upper rail is adjusted by using a liner between the upper rail and the vehicle structure in order to make the clearance between the vehicle structure and the sliding door the design dimension. For this adjustment, it is necessary to perform a trial-and-error repetitive operation such as tightening the fixing bolt and confirming it, and if it does not reach the design dimension, loosen the bolt and adjust the liner. Installation requires careful attention and skill, and also requires a considerable amount of time.

  The present invention has been made in view of such circumstances, and can be applied to either single-opening or double-opening. Moreover, the required space is not particularly increased compared to the conventional door-door structure door device, and it is compact. An object of the present invention is to provide a door device for a railway vehicle having a push function that can reliably block sound from outside the vehicle.

  In order to solve the above-mentioned problems, the slide push type door device for a railway vehicle according to the present invention is provided with an upper rail provided along the upper edge of the entrance / exit above the entrance / exit provided on the side wall of the railway vehicle. The sliding door for opening and closing the entrance / exit has a door hanging metal supported by being engaged with the upper rail, and the sliding door closes the entrance / exit by driving a direct acting actuator for opening / closing. In a closed state and a door device of a railway vehicle configured to move between the open state and the open state accommodated in the gap between the vehicle structure and the interior material. A sleeper direction guide mechanism that guides the sliding door to the outside of the sleeper when the sliding door is moved toward the closed state by driving the linear actuator, and the sliding door is moved downward. Up and down direction guide And a mechanism, the sliding door is characterized by being configured to be pressed against the the car structure side wall portion and Kutsukosu portion in its closed state (claim 1).

  Here, in this invention, the structure (Claim 2) to which the elastic member was attached to the site | part where the said sliding door of the side wall of the said vehicle structure is pressed at the time of closing, and the bottom part of the said sliding door can be employ | adopted suitably. .

  In the present invention, the door latch of the sliding door includes guide rollers provided in the vicinity of both ends in the opening / closing direction of the sliding door, and the sleeper direction guide mechanism has a plate thickness along the horizontal direction. The guide rollers are formed in the guide grooves, and the guide rollers are fitted into the guide grooves. The guide grooves are formed immediately before the guide rollers reach positions corresponding to the closed state of the sliding door. It is possible to adopt a mechanism that is bent outward in the sleeper direction (claim 3).

  Further, in the present invention, the door latch of the sliding door is provided in the vicinity of both ends in the opening and closing direction of the sliding door, and is a load for suspending the sliding door movably by rolling contact with the upper surface of the upper rail. The upper and lower direction guide mechanism includes a roller, and the upper rail upper surface is inclined downward immediately before each load roller reaches a position corresponding to the closed state of the sliding door. 4) is possible.

  Here, in the invention according to claim 3, of the guide rollers provided in the vicinity of both ends in the opening / closing direction of the sliding door, immediately before the door-side guide roller reaches a position corresponding to the closed state of the sliding door. An intrusion prevention mechanism that prevents the guide roller from entering is provided at the bent-in portion, and the door-side guide roller has a mechanism that disables the intrusion prevention mechanism, and the door-end side guide roller has its intrusion prevention mechanism. The structure (Claim 5) provided with the mechanism for activating the intrusion prevention mechanism can be employed.

  In the invention according to claim 3 or 5, the slope of the upper rail of the vertical guide mechanism is formed at a portion where the load roller is in rolling contact with the guide roller entering the bent portion. (Claim 6) can be preferably employed.

  In the present invention, the door latch of the sliding door is provided on the door end side end portion of the sliding door and a bracket provided to protrude outside the sliding door from the door butt of the sliding door, A guide roller and a load roller for rollingly contacting the upper surface of the upper rail and movably hanging the sliding door. The sleeper direction guide mechanism includes a guide groove formed in a plate thickness direction along a plate thickness direction. The guide rollers are fitted into the guide grooves, and the guide grooves are bent toward the sleepers immediately before the guide rollers arrive at positions corresponding to the closed state of the sliding door. The vertical guide mechanism is a mechanism in which an upper surface of the upper rail is inclined downward immediately before the load roller reaches a position corresponding to a closed state of the sliding door, and the bracket The bent part into which the guide roller of the provided door suspension enters and the slope where the load roller is in rolling contact with the guide roller and the load roller of the door suspension provided at the end of the door end open and close the sliding door. It is also possible to adopt a configuration (claim 7) that is formed outside the region through which it sometimes passes.

  Furthermore, in the present invention, at least the upper rail including the sleeper direction guide mechanism and the vertical direction guide mechanism and the linear motion actuator are unitized, and the unit is assembled to the vehicle structure in a state of being assembled in advance. It is desirable to adopt the configuration (claim 8).

  The present invention provides a side sliding door in a closed state by driving a direct acting actuator such as a cylinder as a door closing device without using a separate actuator while keeping the required space of a conventional door device having a door pocket structure as it is. It is intended to solve the problem by pressing against the structure.

  That is, in the present invention, when closing a sliding door by driving a linear actuator as a door closing machine, by a sleeper direction guide mechanism and a vertical direction guide mechanism provided on an upper rail disposed above the sliding door, Immediately before the sliding door is closed, the sliding door is guided outward and downward in the sleeper direction and pressed against the side wall portion and the shoe rubbing portion of the vehicle structure. This substantially eliminates the gap between the sliding door and the vehicle structure, and can shield external sounds and winds.

  Then, as in the invention according to claim 2, by attaching an elastic member to the side wall portion of the vehicle structure to which the sliding door is pressed in the closed state of the sliding door and the lower end surface of the sliding door pressed to the shoe rubbing portion, The sound and wind shielding effect is more reliable.

  Here, the specific configurations of the sleeper direction guide mechanism and the vertical direction guide mechanism are not particularly limited, but as the sleeper direction guide mechanism, as in the invention according to claim 3, A guide groove is engraved in the plate thickness direction, and a guide roller provided on a door latch on the sliding door side is fitted in the groove, and the vehicle structure is formed just before closing the sliding door by bending the guide groove to the outside of the sleeper direction in the required portion. The structure which guides toward can be mentioned.

  Moreover, as an up-and-down direction guide mechanism, like the invention which concerns on Claim 4, it arrives at the position just before a load roller closes a sliding door on the upper surface of the upper rail which supports the load roller provided in the door suspension with the upper surface. There can be mentioned a configuration in which a downward inclined surface is formed in the region and guided toward the shoe rubbing portion immediately before the sliding door is closed.

  As in the invention according to claim 3, guide rollers are provided in the vicinity of both ends in the opening / closing direction of the sliding door, and these guide rollers are guided by grooves so as to enter the respective bent portions immediately before the sliding door is closed. If the structure which guides a sliding door to a sleeper direction outer side is employ | adopted, although the door end side guide roller will pass through the bending part into which the door end side guide roller enters, the invention which concerns on this is controlled It is. That is, in the invention according to claim 5, the intrusion prevention mechanism is provided in the bent portion where the door bottom side should enter, and the guide roller on the door end side does not enter the bent portion, and only the guide roller on the door bottom side has the bent portion. I try to get in.

  In addition, as in the invention according to claim 4, load rollers are provided in the vicinity of both ends in the opening and closing direction of the sliding door, and upper and lower sides for guiding the sliding door in the vertical direction by providing a slope on the upper rail where each of the load rollers is in rolling contact When the direction guide mechanism is adopted, the door-side load roller passes through the slope for guiding the door-side load roller downward as described above. The invention according to claim 6 prevents the roller from being affected. That is, in the invention according to claim 6, the slope for guiding the load roller on the door bottom side up and down guides the sliding door to the outside of the sleeper direction by the guide roller entering the bent portion of the sleeper direction guide mechanism. In this state, the load roller is formed only at the portion where it comes into contact with rolling. Thereby, the load roller on the door end side is not affected by the slope for moving the load roller on the door bottom side up and down.

  On the other hand, in the invention according to claim 7, the door-side guide roller and the load roller do not pass through the bent portion and the slope forming portion for guiding the door-side guide roller and the load roller in the sleeper direction and the vertical direction. Adopted a structure that takes into account. In other words, the door-side guide roller and the load roller are arranged on a bracket projecting outward from the door-bottom portion of the sliding door in the opening and closing direction, and the bent portion and the slope for guiding the door-side guide roller and the load roller are opened and closed. By providing it outside the region where the door-side guide roller and load roller move during operation, the door-side guide roller and load roller are not affected by the bent portion and slope on the door-end side.

  Then, as in the invention according to claim 8, a member including the upper rail including the sleeper direction guiding mechanism and the vertical direction guiding mechanism as described above and the direct acting actuator as the door closing unit is unitized, and the vehicle structure If the unit is simply attached, the side sliding door device can be easily attached to the vehicle structure.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to reduce the intrusion sound from the outside, the penetration | invasion of the wind during driving | running | working can be prevented. Moreover, the above effect can be achieved in a required space equivalent to that of a door device having a conventional door pocket structure and without adding an actuator, so that work for piping and wiring processing increases. It can be realized at a low cost, and the number of maintenance points can be reduced.

  Moreover, since the required space is not increased on the basis of a door device having a conventional door pocket structure, it can be applied to both double doors and single doors, and can be applied to existing vehicles.

It is a front view of an embodiment of the invention. It is a principal part enlarged view of FIG. It is the A section enlarged view of FIG. FIG. 4 is a right side view of FIG. 3. It is explanatory drawing of the guide groove and guide roller which comprise the sleeper direction guide mechanism of embodiment of this invention. It is explanatory drawing of the formation area of the slope of a load rail as an up-down direction guide mechanism of embodiment of this invention. It is explanatory drawing of the mechanism by which the door side guide roller does not enter into the bent part of the door butt side of the guide groove of the sleeper direction guide mechanism. FIG. 8 is a diagram illustrating the operation of the mechanism of FIG. It is explanatory drawing of the mechanism for the door end side guide roller to surely enter into the bent part of the door bottom side of the guide groove of the sleeper direction guide mechanism. FIG. 10 is a diagram illustrating the operation of the mechanism of FIG. It is explanatory drawing of the connection mechanism of the sliding door displaced to a sleeper direction and an up-down direction, and the piston rod of the cylinder which opens and closes this, (A) is a fragmentary sectional view, (B) is the right view. It is explanatory drawing of the relationship between the rail provided in the door pocket, and the sliding door. It is AA sectional drawing of FIG. It is a graph showing the result of the acoustic test which performed embodiment of this invention and the conventional door pocket structure as a comparative example on the same conditions. It is a principal part front view of other embodiment of this invention. It is a figure which shows the connection structure of the air cylinder for sliding door opening / closing of further another embodiment of this invention, and a sliding door, (A) is the figure seen from the door front, (B) is the right view.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front view of an embodiment in which the present invention is applied to a double sliding side sliding door device, showing a state in which interior materials near the sliding doors 1a and 1b on both sides are removed. FIG. 2 shows an enlarged view of the vicinity of the door engine, that is, the opening / closing drive mechanism 2.

  The left and right sliding doors 1a, 1b are opened / closed by the opening / closing drive mechanism 2, and the entrance / exit formed on the side wall portion of the vehicle structure B is closed or released as shown in the figure. In the open state, the sliding doors 1a and 1b are in a space formed between the vehicle structure B and the interior material, that is, in a door pocket.

  The drive source of the opening / closing drive mechanism 2 is only one opening / closing air cylinder 21, and by driving this air cylinder 21, the left and right sliding doors 1 a, 1 b simultaneously move in the opposite directions to open / close the entrance / exit, As will be described later, the sliding doors 1a and 1b are pressed against the side wall portion of the vehicle structure B and pressed against the shoe rubbing portion of the vehicle structure B.

  Since the movement of the sliding doors 1a and 1b on the left and right sides by the opening / closing drive mechanism 2 in the reverse direction is the same as the conventional opening / closing mechanism of this type of door pocket structure, a detailed description thereof is omitted. Timing that is wound between the timing pulley 221 that engages with the piston rod 211 and rotates by the movement of the piston rod 211 and the other timing pulley 222 that is spaced apart from the timing pulley 221 by a predetermined distance in the horizontal direction. A rod 224 is attached to the belt 223, and this rod 224 moves in the opposite direction to the movement of the piston rod 211 by driving the air cylinder 21. One sliding door 1a is connected to the piston rod 211, and the other sliding door 1b is connected to the rod 224. The left and right sliding doors 1a and 1b are moved in opposite directions by driving the air cylinder 21, so Open and close the mouth.

  The feature of this embodiment is that the opening / closing drive mechanism 2 includes a sleeper direction guiding mechanism that guides the sliding doors 1a and 1b in the sleeper direction when the sliding doors 1a and 1b are opened and closed, and a vertical movement mechanism that similarly guides the sliding doors in the vertical direction. There is no lower rail of the shoe rub portion that engages with the lower ends of the sliding doors 1a and 1b to prevent displacement (swing) in the direction of the sleeper as in the conventional door pocket structure. Instead, the vehicle in the door pocket A rail 5 is provided in the structure, and a roller 11 rotatably supported is fitted into and guided by a tip end of a roller attachment 12 provided to protrude from the door bottom of each sliding door 1a, 1b. . The sliding doors 1a, 1b and the piston rod 211 or the rod 224 are connected by the connecting mechanism 26. In this embodiment, the sliding doors 1a, 1b are guided in the sleeper direction and the vertical direction when opening and closing. The connection by the connection mechanism 26 cannot be made rigid, and has been devised as will be described later.

Hereinafter, the characteristic portions will be sequentially described.
FIG. 3 is an enlarged view of the portion indicated by A in FIGS. 1 and 2, and FIG. 4 is a right side view thereof. The suspension 6 attached to each of the door tips and door bottoms of the sliding doors 1a and 1b is shown. Represents. 3 and 4, the switching plate 66 described later is not shown. 3 and 4 show the state when the sliding doors 1a and 1b are in a closed state. In this closed state, the sliding doors 1a and 1b move outward in the direction of the sleeper and are moved to the side wall portion of the vehicle structure as will be described later. At the same time, it moves downward and is pressed against the vehicle structure shoe rubbing portion. Elastic members E are attached to portions of the side walls of the vehicle structure where the sliding doors 1a and 1b are pressed, specifically, the upper edges of the sliding doors a and 1b and the side edges of the door butt. An elastic member E ′ is also attached to the lower end surfaces of the sliding doors 1a and 1b as will be described later.

  The suspension 6 includes a suspension main body 61, a load roller 62 that is rotatably supported around the horizontal axis on the suspension main body 61, and a vertical axis around the suspension main body 61 above the load roller 62. The main body is two guide rollers 63 that are rotatably supported by each other. The suspension main body 61 is attached to the sliding doors 1a and 1b via a thrust bearing 64 so as to be rotatable around a vertical axis.

  Each load roller 62 is in rolling contact with a load rail (upper rail) 23 provided in the opening / closing drive mechanism 2 on the vehicle structure side corresponding to each sliding door 1a, 1b, and each sliding door 1a, 1b is respectively It is in a state of being suspended from the load rail 23 by a total of two load rollers 62 at the door tip and the door bottom.

  Further, the two guide rollers 63 attached to each of the hanging latches 6 are fitted into guide grooves 25 formed in the guide plate 24 provided in the opening / closing drive mechanism 2 on the vehicle structure side. Yes.

  As shown in FIG. 5, the guide groove 25 of the guide plate 24 has the guide rollers on the door tip and the door bottom side at positions immediately before the sliding doors 1 a and 1 b are completely closed when moved in the closing direction. Bending portions 251 and 252 are formed by bending outward in the sleeper direction just before 63 arrives. Hereinafter, among the bent portions, those located on the door-end side are referred to as door-end-side bent portions 251, and those located on the door-end side are referred to as door-end side bent portions 252.

  The load rail 23 described above is inclined downward immediately before the load roller 62 reaches the position immediately before the sliding doors 1a and 1b are moved in the closing direction. The inclined portion of the load rail 23 is formed only in the portion corresponding to the bent portion of the guide groove 25 described above. FIG. 6 is a schematic diagram showing the inclined region, and the region with cross-hatching is shown in the drawing. Inclined downward toward the left side. That is, as will be described later, when the guide rollers 63 are fitted into the corresponding bent portions 251 and 252 and the sliding doors 1a and 1b begin to be guided outward in the sleeper direction, the load roller 62 starts moving in the same direction. After that, a downward slope begins.

  As shown in FIG. 7, a switching plate 65 is attached to the door end side hanging bracket 6 above the guide roller 63. In the plan view of the switching plate 65, as shown in FIG. 8, a slope 65a is formed on the outer side of the sleeper in the opening / closing direction of the sliding doors 1a, 1b. The switching plate 65 prevents the door-side guide roller 63 from entering the door-side bent portion 252 when the sliding doors 1a and 1b are closed. That is, as shown in FIG. 8, a baffle plate 253 is provided in the bent portion 252 on the door butt side so as to be rotatable about a root portion 253 a thereof. Is attached. When closing the sliding doors 1a and 1b, when the door end side guide roller 63 comes into contact with the door bottom side bent portion 252, the slope 65a of the switching plate 65 is obstructive as shown in FIGS. The baffle plate 253 is rotated by coming into contact with the roller 234 at the tip of the plate 253, and the door bottom side bent portion 252 is closed. As a result, the door end side guide roller 63 does not enter the door bottom side bent portion 252 and advances in the linear guide groove 25.

  On the other hand, the above-described baffle plate is not attached to the door-end-side bent portion 251, and therefore the door-end-side guide roller 63 is fitted into the door-end-side bent portion 251.

  Further, instead of the switching plate 65 as described above, a switching plate 66 having a side view in FIG. 9 and a plan view in FIG. The switching plate 66 has an inclined surface 66a that is opposite to the inclined surface of the switching plate 65 provided on the door-side suspension 6 at the front portion when the sliding doors 1a and 1b move in the closing direction. Due to the presence of the switching plate 66, the door-side guide roller 63 is securely fitted into the door-side bent portion 252 regardless of the presence of the baffle plate 253. That is, as shown in FIGS. 9A to 9F, when the sliding doors 1a and 1b are closed, when the door-side guide roller 63 comes into contact with the door-side bent portion 252, the slope 66a of the switching plate 66 Is brought into contact with the roller to rotate the baffle plate 253 to open the door-side bent portion 252. As a result, the door-side guide roller 63 is fitted into the door-side bent portion 252.

  From the above, when the air cylinder 21 is driven to close the sliding doors 1a and 1b, the door-side guide roller 63 is fitted into the door-side bent portion 251 immediately before the sliding doors 1a and 1b are completely closed. At the same time, the door-side guide roller 63 is fitted into the door-side bent portion 252 so that the sliding doors 1a and 1b are guided outward in the sleeper direction and attached to the vehicle structure B as shown in FIG. The elastic member E is pressed.

  As described above, since the slope is formed on the load rail 23 corresponding to the bent portions 251 and 252 of the guide groove 25, the sliding doors 1a and 1b are guided outward in the sleeper direction, and the load roller 62 is As it moves outwards, it rolls on a downward slope, thus each sliding door 1a. 1b is also guided to the lower side. As shown in FIG. 10 and as described above, each sliding door 1a. Since the elastic member E ′ is attached to the bottom surface of 1b, when the sliding doors 1a and 1b are guided downward, the sliding doors 1a and 1b are interposed via the elastic member E ′ as shown in FIG. Thus, it is pressed against the shoe rub B ′.

  Here, since each of the hanging latches 6 is attached to the sliding doors 1a and 1b via a thrust bearing 64 so as to be rotatable around the vertical axis, the guides are respectively fitted to the bent portions 251 and 252 of the guide groove 25. When the roller 63 is fitted, each suspension 6 rotates appropriately around the vertical axis.

  Further, since each sliding door 1a, 1b is guided in the direction of sleepers and in the vertical direction, the connection mechanism 26 for transmitting the displacement of the piston rod 211 or the rod 224 to each sliding door 1a, 1b is rigidly based. The following mechanism is adopted. FIG. 11 is a partial sectional view (A) thereof and a right side view thereof. A connecting member 261 is fixed to the sliding doors 1a and 1b side, and a connecting member 262 is fixed to the piston rod 211 (or the rod 224 shown in FIG. 2). A slide base 263 is fixed to the top of the connecting member 261 on the sliding door 1a, 1b side. The slide table 263 is formed with arc-shaped grooves 263a extending in the sleeper direction on both sides of the sliding doors 1a and 1b in the opening and closing direction. On the other hand, a pair of ball rollers 264 are attached to the connecting member on the piston rod 211 side so as to face each other and sandwich the slide table 263. The ball roller 264 is a member that rotatably supports the ball in an arbitrary direction, and the ball of each ball roller 264 is in rolling contact with each groove 263 a of the slide base 263. The radius of curvature of the arc-shaped groove 263a of the slide table 263 is made larger than the radius of the ball of the ball roller 264 by a required dimension. The connecting member 261 on the sliding door 1a, 1b side and the connecting member 262 on the piston rod 211 side are engaged only by the slide base 263 and the ball roller 264.

  With the above configuration, when the sliding doors 1a and 1b are opened and closed by the linear motion of the piston rod 211, even if the sliding doors 1a and 1b move in the sleeper direction and the vertical direction, the sleeper direction and the vertical direction with respect to the groove 263a of the slide base 263 The piston rod 211 is hardly moved in the direction of sleepers or in the vertical direction.

  In this embodiment, instead of providing a lower rail as in the conventional door pocket structure, the rail 5 is provided in the door pocket as described above. As shown in FIG. That is, the roller mounting metal 12 protrudes from the door bottom of the sliding door 1b (1a), and the roller 11 is attached to the tip of the roller mounting metal 12 so as to be rotatable about the vertical axis. On the other hand, on the vehicle structure B side, a rail 5 is attached in the door pocket, and a roller 11 is fitted therein to guide it. The rail 5 is bent outward in the sleeper direction immediately before the closed state in response to the displacement of the sliding door 1b (1a) in the sleeper direction by the sleeper direction guide mechanism. The sliding door 1b (1a) is not restrained from being displaced in the vertical direction by the vertical guide mechanism. With such a configuration, while allowing the displacement in the sleeper direction and the vertical direction when the sliding doors 1a and 1b are opened and closed, the lower side swing of the sliding doors 1a and 1b is suppressed as in the conventional lower rail. ing.

  Further, in the above configuration, the air cylinder 21, the timing pulleys 221 and 222, the timing belt 223, the rod 224, the suspension roller 6 unit including the load roller 62 and the guide roller 63, the load rail 23, and the opening / closing drive including the guide plate 24. By incorporating the device 2 as a unit, the incorporation into the vehicle can be greatly simplified as compared with a conventional sliding door device having a door pocket structure.

  FIG. 14 is a graph showing the results of an experiment conducted to confirm the difference in sound shielding effect from the outside of the above-described embodiment of the present invention and the conventional door pocket structure. In this graph, the horizontal axis represents the center frequency [Hz] and the vertical axis represents the noise level [dB (A)]. The graph plots the conventional structure under the same conditions and the results of the embodiment of the present invention. ing. As is apparent from this graph, the embodiment of the present invention has an effect of suppressing noise intrusion at all frequencies as compared with the conventional structure, and a sound insulation effect of approximately 3 to 12 dB is confirmed at each frequency. It was done.

  As described above, by driving the single air cylinder 21, the left and right sliding doors 1a and 1b are closed simultaneously, and at the same time, the respective sliding doors 1a and 1b are guided outward and downward in the sleeper direction, Since it is pressed against the shoe rubbing part B ′ via the elastic members E and E ′, the sealing property between the sliding doors 1a and 1b and the vehicle structure B is improved, and the entry of sound and wind from the outside into the vehicle is improved. It can be prevented efficiently. In addition, the sliding doors 1a and 1b can be moved in the direction of the sleepers and in the vertical direction by using only one air cylinder for opening and closing without the need for a separate actuator, and the sleeper direction guide mechanism and the vertical direction guide mechanism are opened and closed. It is housed in the device 2, and there is no change in the conventional door opening / closing drive mechanism and its required space.

  In the above embodiment, as a sleeper direction guiding mechanism, a mechanism in which a guide groove 25 is formed in the guide plate 24 and the guide roller 63 is fitted in the guide groove 25, in other words, a groove cam mechanism is employed. However, instead of the guide plate 24 having the guide groove 25, a rail may be employed.

  Further, in the above embodiment, a configuration is adopted in which two guide rollers 63 are arranged at the door tip and the door bottom, respectively. According to this configuration, these guide rollers 63 are bent portions 251 or 251. 252, the intermediate portion of the two guide rollers 63 is stably the center of rotation of the suspension 6, and the thrust bearing 64 is disposed at the intermediate position of the two guide rollers 63. The behavior of 6 can be made stable.

  Here, in the above embodiment, the two bent portions 251 and 252 provided in the guide groove 25 are provided, and the door-side guide roller is inserted into the bent portion 252 into which the door-side guide roller 63 enters. Although a mechanism provided with a baffle plate or the like for preventing 63 from entering is used, instead of this, there is a door-side guide roller outside the moving area of the door-side guide roller when the sliding door is opened and closed. It is also possible to adopt a configuration that forms a bent portion for entering. An example is shown in FIG.

  In the example of FIG. 15, the door end side hanging hooks 601 of the sliding doors 1 a and 1 b are provided at the same positions as in the previous example, while the bracket 10 is provided at the upper end portion on the door bottom side and outside the sliding door opening / closing direction. , And a hook 602 on the door butt side is provided at the upper end of the bracket 100. Each of the hanging hooks 601 and 602 is equivalent to the previous example, and includes a load roller 62 and a guide roller 63, respectively. The basic configuration of the guide groove 24 including the guide plate 24 and the bent portions 251 and 252 constituting the sleeper direction guide mechanism, the load rail 23 constituting the vertical guide mechanism and the slope formed thereon is the first. This is the same as the above example, and is not shown in FIG.

  The inclined surface for the door-side load roller 62 is formed at the position indicated by A in FIG. 15, as is the bent portion 251 into which the door-side guide roller 63 enters, and the door-side guide roller 63 enters. The inclined surface for the load roller 62 on the door bottom side as in the bent portion 251 is indicated by B in FIG. Then, the door-end side latch 601 on which the door-end side guide roller 63 and the load roller 62 are arranged moves in a range indicated by C in FIG. 15 when the sliding door 1b is opened and closed. In addition, the range of movement when the door 1 side door 602 on which the door edge side guide roller 63 and the load roller 62 are arranged, that is, the sliding door 1b of the door 802 provided on the bracket 100, is opened and closed. Indicated.

  According to the above configuration, the door-side guide roller 63 and the load roller 62 form bent portions and inclined surfaces for the door-side guide roller 63 and the load roller 62 in the entire movement range in the opening / closing operation of the sliding door 1b. Therefore, it is not necessary to take measures to restrict the entrance of the guide roller on the door end side by providing a baffle plate or the like at the bent portion on the door bottom side as in the previous embodiment.

  Further, in the previous embodiment, in order to prevent the piston rod 211 or the rod 224 from being twisted due to the displacement of the sliding doors 1a and 1b in the sleeper direction and the vertical direction, the connecting mechanism 26 for connecting both of them is connected to the pole. Although a mechanism using the roller 264 and the slide base 263 is employed, the present invention is not limited to this, and other mechanisms can be employed. An example thereof is shown in FIG. 16A as a front view and as shown in a right side view in FIG.

  In FIG. 16, 1261 is a connecting member fixed to the sliding doors 1a and 1b side, and 262 is a connecting member fixed to the piston rod 211 or the rod 224 side. In this example, connecting members 261 and 262 are connected by a link 265. That is, both ends of the link 265 are joined to the connecting members 261 and 262 by the pins 265a and 265b, respectively. The pin 265a on the connecting member 261 side is inserted into a through hole 265c formed in the link 265, while the pin 265b on the connecting member 262 side is inserted into a long hole 265d formed in the link 265.

  According to the above configuration, even if the sliding doors 1a and 1b are displaced in the sleeper direction and the vertical direction when the sliding doors 1a and 1b are opened and closed, the pin 265a is appropriately rotated in the through hole 265c, and the pin 1265b is in the long hole 265d. It will rotate and move appropriately, and the force in the sleeper direction and the vertical direction will not be transmitted between the sliding doors 1a, 1b and the piston rod 211 or the rod 224.

DESCRIPTION OF SYMBOLS 1a, 1b Sliding door 11 Roller 12 Roller mounting metal 2 Opening and closing drive mechanism 21 Air cylinder 211 Piston rod 221, 222 Timing pulley 223 Timing belt 224 Rod 23 Upper rail (load rail)
24 guide plate 25 guide groove 251 252 bent portion 253 baffle plate 254 roller 26 connection mechanism 261 262 connection member 263 slide base 264 ball roller 5 rail (in the door pocket)
6 Suspension 61 Suspension body 62 Load roller 63 Guide roller 64 Thrust bearing 65, 66 Switching plate B Vehicle structure B 'Shoe rubbing part E, E' Elastic member

Claims (8)

An upper rail is provided above the entrance provided on the side wall of the railway vehicle so as to extend along the upper edge of the entrance, and a sliding door for opening and closing the entrance is engaged with the upper rail. This sliding door has a closed state in which the entrance / exit is closed by driving a direct-acting actuator for opening / closing, and an opening between the entrance / exit and an opening between the vehicle structure and the interior material. In a door device for a railway vehicle configured to move between released states housed in
A sleeper direction guiding mechanism for guiding the sliding door to the outside of the sleeper immediately before the sliding door reaches the closed state when the sliding door is moved to the closed state by driving the linear actuator on the upper rail. A sliding guide for a railway vehicle, comprising a vertical guide mechanism for guiding the sliding door downward, wherein the sliding door is configured to be pressed against the side wall portion of the vehicle structure and the shoe rubbing portion in the closed state. Push-type door device.   The slide push type door device for a railway vehicle according to claim 1, wherein an elastic member is attached to a portion of the side wall of the vehicle structure that is pressed when the sliding door is closed and a bottom portion of the sliding door.   The door latch of the sliding door includes guide rollers provided in the vicinity of both ends in the opening / closing direction of the sliding door, and the sleeper direction guiding mechanism includes a guide groove formed in a plate thickness direction along the plate thickness direction. Each guide roller fits in the guide groove, and the guide groove is bent outward in the sleeper direction immediately before the guide rollers reach the position corresponding to the closed state of the sliding door. The slide push type door device for a railway vehicle according to claim 1, wherein the mechanism is a mechanism.   The sliding door has a load roller provided near both ends in the opening and closing direction of the sliding door, and includes a load roller for rollingly contacting the upper rail and suspending the sliding door so as to be movable. 2. The mechanism according to claim 1, wherein an upper surface of the upper rail is inclined downward immediately before the load roller reaches a position corresponding to a closed state of the sliding door. 4. The slide push type door device for a railway vehicle according to any one of 3.   Among the guide rollers provided in the vicinity of both ends of the sliding door in the opening / closing direction, the guide roller enters the bent portion where the guide roller on the door bottom side enters immediately before reaching the position corresponding to the closed state of the sliding door. An intrusion prevention mechanism is provided, the door end side guide roller is provided with a mechanism for disabling the intrusion prevention mechanism, and the door end side guide roller is provided with a mechanism for activating the intrusion prevention mechanism. The slide push type door device for a railway vehicle according to claim 3.   The slope of the upper rail of the vertical guide mechanism is formed at a portion where the load roller is in rolling contact with the guide roll entering the bent portion. The slide bush type door device for a railway vehicle according to the item.   The door latch of the sliding door is provided on a door tip side end portion of the sliding door and a bracket provided to protrude outside the sliding door from the door bottom of the sliding door, and each door suspension has a guide roller and the above It includes a load roller for rollingly touching the upper surface of the upper rail to suspend the sliding door, and the sleeper direction guide mechanism forms a guide groove drilled in the plate thickness direction in the plate material along the horizontal direction, Each guide roller fits in the guide groove, and the guide groove is a mechanism that bends in the sleeper direction immediately before each guide roller arrives at a position corresponding to the closed state of the sliding door, The vertical guide mechanism is a mechanism in which an upper surface of the upper rail is inclined downward immediately before the load roller reaches a position corresponding to a closed state of the sliding door, and is provided on the bracket. The bent part where the guide roller of the latch enters and the slope where the load roller rolls are out of the area where the guide roller and load roller of the door suspension provided at the end of the door end pass when the sliding door is opened and closed. The slide push type door device for a railway vehicle according to claim 1, wherein the slide push type door device is formed.   The upper rail including at least the sleeper direction guide mechanism and the vertical direction guide mechanism and the linear motion actuator are unitized, and the unit is assembled to the vehicle structure in a preassembled state. The slide push type door device for railway vehicles according to any one of 1 to 7.