JP2008238999A - Body connecting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a linking device of a vehicle body capable of ensuring durably reduction of the vehicle body twisting load and smooth shock-absorbing property without impairing countermeasures for the lower longitudinal support between upper parts of a vehicle body and the yawing around a lower linking part. <P>SOLUTION: The linking device has between vehicle bodies 2, 3 a lower linking part 101 linking lower parts by connecting lower parts thereof via a bearing including a spherical bearing and permitting the yawing therebetween; and an upper linking part 102 linking upper parts of the vehicle bodies 2, 3 by linking a fixed bracket 31 with a base part thereof fixed to one vehicle body 2 to a movable bracket 34 supporting right and left supported parts 341 of the base parts by right and left supporting parts 331 of the fixed bracket 32 with its base part fixed to the other vehicle body 3 via an elastic supporting means 33 for applying the elastic supporting force to at least the longitudinal direction and the right-to-left direction via a spherical bearing 35. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle body connecting apparatus for connecting between traveling vehicle bodies.

  Conventionally, as a method of lowering the floor of a vehicle in order to cope with barrier-free or the like, a vehicle body 3 having no carriage is added to a vehicle body 2 having a carriage 1 with reference to FIG. 1 showing the embodiment of the present invention. It is known in rail cars, particularly trams (see, for example, Patent Documents 1 and 2) that they are connected and floating supported, and the vehicle body 3 does not have a carriage to lower the floor.

Patent Documents 1 and 2 both disclose a technique for connecting the vehicle bodies having this type of connection structure, in particular, connecting the upper parts of the vehicle bodies via vibration damping means. As specific vibration control means, Patent Document 1 discloses a fluid pressure damper that works in the lateral direction between the vehicle bodies, a fluid pressure damper that uses a coil spring, a friction pressure damper, a friction pressure damper that uses a coil spring, and an active control by an actuator. Patent Document 2 mentions a coil spring, a combination of a coil spring and a hydraulic damper in series or in parallel, and a laminated rubber. In any case, by allowing the relative rolling between the vehicles centering on the lower joint part to allow the torsional load generated on the vehicle body due to the difference of the cant (the difference in height of the inner and outer gauges) for each carriage when passing the curve, It can alleviate and prevent vibration. Further, according to the arrangement of the damping element, the pitching between the vehicle bodies can be buffered and absorbed.
JP 2005-289297 A JP 2007-8446 A

  However, the vibration damping technology disclosed in Patent Document 2 in which laminated rubber is interposed at the pin connection portion between the vehicle bodies can handle both load transmission in the front-rear direction and rolling and yawing centering on the lower connecting portion. However, since the stress due to the buffer load concentrates on one laminated rubber based on the simple displacement between the connecting brackets fixed to the vehicle body, it is difficult to obtain a sufficient absorption stroke and smooth buffer action, and the fatigue level is high and durable. Sex matters.

  By the way, the present applicant refers to FIG. 1 showing the present embodiment, and between the upper parts of the vehicle bodies 2 and 3, a fixed bracket 31 having a base fixed to one vehicle body 2 and a base to the other vehicle body 3. A unique connection technique that provides an upper connection portion 102 that connects a movable bracket 34 having a base supported so as to be able to swing up and down in two places on the left and right with a fixed bracket 32 to which the bracket is fixed via a spherical bearing 35. Previously proposed (JP 2005-297682 A (Patent Document 3), JP 2005-335445 A (Patent Document 4)).

  In the improvement of the previous proposal, the present inventor has a new unique behavior of the movable bracket 34 with respect to the rolling action centering on the lower connecting portion 101 between the vehicle bodies 2 and 3, and the above-described problems. We have come to develop a technology that can deal with the situation without any problems.

  The object of the present invention is to reduce the torsional load of the vehicle body by allowing a slight rolling between the vehicle bodies without impairing the support function in the longitudinal direction between the upper parts of the vehicle body and the yawing centering on the lower connecting portion. Another object of the present invention is to provide a connecting device for a vehicle body that can secure a smooth cushion and durability.

  In order to achieve the above-described object, the vehicle body connecting apparatus of the present invention is connected to a vehicle body with a carriage and a vehicle body without a carriage via a bearing that includes a spherical bearing and at least allows yawing between them. The lower connecting part connecting the lower parts so as to support the car body without the carriage on the car body with the carriage, the fixing bracket having the base part fixed to one car body, and the fixing part having the base part fixed to the other car body A movable bracket that supports two left and right supported portions of the base via elastic support means that exerts elastic support force in at least the front and rear directions and the left and right directions is connected to the left and right support portions of the bracket via spherical bearings. And an upper connecting part that connects the upper parts of the vehicle body.

  In such a configuration, the connection between the vehicle body with the carriage and the vehicle body without the carriage via the bearing at the lower connecting portion and the connection with the spherical bracket between the fixed bracket and the movable bracket at the upper connecting portion are between the vehicle bodies. The front joints are rigidly connected to the front, rear, left and right, ensuring the necessary transmission between the front, rear, left and right and the allowance of yawing. With respect to the moment, the movable bracket is displaced by yaw rotation, so that the relative lateral movement without changing the longitudinal distance between the upper parts of the vehicle body, that is, the roll between the vehicle bodies is allowed, and the torsional moment is absorbed within the range that does not interfere with the support. In addition, the torsional moment and the non-absorbed component can be decomposed into left and right couples with respect to the upper and lower connecting portions to prevent the moment from reaching the brackets.

  In the above, the elastic support means elastically allows the movable bracket to swing up and down. In addition to the above, the movable bracket further elastically swings up and down between the vehicle bodies. Therefore, the transmission of the upper and lower loads is cut off somewhat, giving priority to the support of the vehicle body without the carriage by the vehicle body with the carriage by the lower connection part, avoiding the competition with the support, the vehicle body with the carriage of the vehicle body without the carriage It can flexibly cope with variations and fluctuations in the support height at the lower connecting part due to, and the body falling down.

  In the above, the support portion is a support shaft in a vertical direction or a sleeper direction, the supported portion is a mounting hole on the movable bracket side that fits around the outside of the support shaft, and the elastic support means includes a support shaft and In addition to the above, the elastic support means can be easily and simply moved between the simple fitting between the support shaft of the fixed bracket and the mounting hole of the base of the movable bracket. You can work without escaping.

  In addition to the above, the elastic support means is further operated between the spherical bearing fitted to the support portion and the mounting hole of the supported portion fitted to the outer periphery thereof. Furthermore, the movable bracket can be freely swung up and down without impairing the torsional moment absorbing and buffering action of the movable bracket, and the function of blocking the transmission of the vertical load at the upper connecting portion can be enhanced.

  In addition to the above, the elastic force exerted by the elastic support means is smaller in the left-right direction than in the front-rear direction. In this way, the flexibility in the left and right direction and the amount of deformation can be increased, and the shock absorbing property against the torsional moment and the absorption stroke can be increased.

  In the above, the left and right support parts and the left and right supported parts respectively have variable left-right distances between the support parts and left-right distances between the supported parts, or are subject to selection from multiple types. In addition to the above, the optimum condition using the fact that the connecting rigidity between the vehicle bodies changes in accordance with the size of the left and right distance between the two supporting parts and between the supported parts, in addition to the above, Obtained by distance adjustment or selection.

  Further objects and features of the present invention will become apparent from the following detailed description and drawings. Each feature of the present invention can be used alone or in combination in various combinations as much as possible.

  According to the vehicle body connection device of the present invention, a rigid connection structure in the front, rear, left, and right is ensured by the connection via the bearing at the lower connection portion between the vehicle bodies and the connection by the spherical bearing at the upper connection portion. The front and rear, left and right load transmission required between them and yawing allowance are satisfied, and at the upper joint, the movable bracket is connected to the spherical bearing and the base against the torsional moment generated between the vehicle bodies during curved running. While stretching between the left and right support parts, the yaw rotation behavior is accompanied by the elastic deformation in which both the front and rear, left and right directions of the elastic support means are combined, and the torsional moment is distributed to the left and right elastic support means Absorbs and cushions the load transmission without hindrance to reduce the torsional moment between the vehicle bodies, and hence the stress due to the torsion between the vehicle bodies. It is possible to avoid the moment span bets include, improves body and a connection apparatus both durability.

  In addition to the above, the movable bracket is elastically allowed to swing up and down between the vehicle bodies by the elastic support means, and the transmission of the vertical load is somewhat cut off, so that there is no carriage by the vehicle body with the carriage by the lower connecting portion. By giving priority to the support of the vehicle body, it is possible to avoid competition with this support and flexibly cope with variations and fluctuations in the support height at the lower connecting portion due to the vehicle body with a vehicle body without a vehicle, and the vehicle body falling down.

  In addition to the above, the elastic support means can be operated easily and without escaping between simple fittings between the support shaft of the fixed bracket and the mounting hole of the base of the movable bracket, and can correspond to a simple bush configuration.

  In addition to the above, by using a spherical bearing together with the elastic support means, the movable bracket can be freely swung up and down without impairing the torsional moment absorbing and buffering action of the movable bracket, and at the upper connecting portion. The function of blocking the transmission of vertical load can be enhanced.

  In addition to the above, by reducing the elastic force in the left-right direction of the elastic support means to reduce the elastic force in the front-rear direction, increasing the flexibility and deformation in the left-right direction without reducing the front-rear load transmission function, and twisting The shock absorbing property against the moment and the absorption stroke can be increased.

  In addition to the above, an optimum condition using the increase / decrease in the connecting rigidity between the vehicle bodies according to the size of the left-right distance between the two supporting parts and between the supported parts can be obtained by adjusting or selecting the interval.

  Hereinafter, a vehicle body connecting apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 to 10 for understanding of the present invention. The following description and illustration are specific examples of the present invention, and do not limit the description of the scope of the claims.

  The vehicle body connecting device of the present embodiment is a five-line streetcar in which three vehicle bodies 2 having a carriage 1 and two vehicle bodies 3 having no carriage are alternately connected as shown in FIG. This example is applied to the main connection between the vehicle bodies 2 and 3 so that the load can be transmitted in the necessary direction while allowing the necessary relative movement. However, the present invention is not limited to this, and any arrangement may be used as long as the vehicle body 2 with the carriage 1 is alternately arranged and connected to the vehicle body 3 without the carriage on condition that the vehicle body 2 with the carriage 1 is positioned at the front and rear ends. of even a vehicle, to be applied to vehicles of more than 5 consecutive, railway vehicles other than trams as well, it can be applied to articulated between any vehicle, including vehicles other than the railway vehicle.

  As shown in FIGS. 1, 2, and 3, a vehicle body without a carriage is connected between a vehicle body 2 with a carriage 1 and a vehicle body 3 without a carriage via a bearing 6 that allows at least yawing between them. 3, a lower connecting portion 101 connected so as to support the vehicle body 2 with the carriage 1, and a fixed bracket 31 whose base portion is fixed to one vehicle body 2 as shown in FIGS. 1, 4, 5, and 6. On the other hand, the left and right two portions of the base are attached to the support portion 331 which is a vertical support shaft or the like as shown in FIG. 5 (d) on the left and right fixed brackets 32 and 32 whose base portion is fixed to the other vehicle body 3. A rubber bush or the like as shown in FIGS. 5 (d) and 5 (e) for applying an elastic support force at least in the front-rear direction and in the left-right direction as a supported portion 341 as an attachment hole or the like as shown in FIG. 5 (d). Movable bracket 3 supported via elastic support means 33 And includes an upper connecting portion 102 connecting between the upper portion of FIG. 5 the vehicle body by connecting through a spherical bearing 35 as shown in (c) 2,3, the.

  Such a connection between the vehicle body 2 with the carriage 1 and the vehicle body 3 without the carriage through the lower connection portion 101 via the bearing 6, and the spherical bearing 35 between the fixed bracket 31 and the movable bracket 34 at the upper connection portion 102. The connection by means of a rigid connecting structure between the vehicle bodies 2 and 3 in the front and rear and left and right directions, and transmission of the front and rear and right and left loads required between the vehicle bodies 2 and 3 and the allowance of yawing are ensured. In the upper connecting part 102, the movable bracket 34 has two rigid connecting parts and two base left and right parts by the spherical bearing 35 with the fixed bracket 31, particularly with respect to the torsional moment generated in the vehicle bodies 2 and 3 during curved traveling. The elasticity of the deflection amounts a1 and a2 having different directions shown in FIG. 8 in which the front-rear direction component and the left-right direction component of the elastic support unit 33 are combined while stretching between the support part 331 supported via the elastic support unit 33. With deformation, the yaw rotation behavior is made from the position of the broken line shown in FIG. 8 to the position of the solid line around the connecting portion of the fixed bracket 31 by the spherical bearing 35, and the torsional moment is transferred to the elastic support means 33, 33 at two places on the left and right. Disperse and absorb and cushion within the range that does not interfere with the transmission of the load, and the non-absorbed amount is disassembled into left and right couples for the upper and lower connecting parts 101 and 102 to be converted into brackets. It is possible to avoid the instrument that span.

  As a result, the connection between the vehicle bodies 2 and 3 via the bearing 6 at the lower connection portion 101 and the connection via the spherical bearing 35 of the upper connection portion 102 ensure a rigid connection structure in the front and rear and left and right directions. The upper and lower connecting parts 102 satisfy the required load transmission between the front and rear, the left and right, and the yawing allowance. While twisting between the bearing 35 and the two support portions 331 on the left and right of the base portion, the elastic support means 33 is elastically deformed in both the front and rear, left and right directions, and performs a yaw rotation behavior around the spherical bearing 35 so that the torsion moment Can be absorbed and buffered without any hindrance to the transmission of the load while being distributed to the two elastic support means 33, 33 on the left and right sides to reduce the stress caused by torsion between the vehicle bodies 2, 3 and Decomposed into left and right couple against contact portions 101 and 102 can avoid the moment is exerted on the bracket such body 2,3 and a connection apparatus both durability is improved.

  Note that the yaw rotation behavior shown in FIG. 8 of the movable bracket 34 is obtained by a principle configuration in which the function of the elastic support means 33 is disassembled into a spring 33a acting in the front-rear direction and a spring 33b acting in the left-right direction. A specific way of working the support means 33 can be freely selected. Such yaw rotation behavior includes the translational amount x1 of the movable bracket 34 in the left-right direction y as shown in FIG. 9A and the position of the movable bracket 34 from the broken line position to the solid line position as shown in FIG. 9B. The horizontal translation x2 of the center of the spherical bearing 35 due to the yaw rotation and the movement of the two supported parts 341 and 341 in the left and right in the front-rear direction x can be broken down. At this time, the two left and right support portions 331 have the same orientation and elastic deformation of the same deflection amount ay as shown in FIG. 9A and different orientations and the same deflection amount ax as shown in FIG. 9B. Undergoes elastic deformation.

  Here, the elastic support means 33 can elastically allow the movable bracket 34 to swing up and down. As a result, the movable bracket 34 elastically swings up and down between the vehicle bodies 2 and 3, and the transmission of the vertical load is somewhat interrupted, so that the vehicle body 3 without the carriage by the vehicle body 2 with the carriage 1 by the lower connecting portion 101. Giving priority to the support of the vehicle, avoiding the competition with the support, and flexibly to the variation or fluctuation of the support height at the lower connecting part 101 by the vehicle body 2 with the vehicle 1 of the vehicle body 3 without the vehicle, and the body 3 to fall down Yes.

  The support portion 331 is the support shaft in the vertical direction or the sleeper direction described above, and the supported portion 341 is a mounting hole on the movable bracket 34 side that fits around the support shaft 331 described above, and the elastic support means 33. Is operated between the support shaft as the support portion 331 and the mounting hole as the supported portion 341. In addition to the above, the elastic support means 33 further includes a support shaft of the fixed bracket and a base portion of the movable bracket. It is possible to work easily and without escaping between simple fittings with the mounting holes. For this purpose, a simple bush configuration as shown in FIGS. 5D and 5E can be used, and a rubber bush is suitable. In the example shown in FIGS. 5D and 5E, the rubber core 33c and the rubber layer 33d are alternately laminated to improve the durability and the radial support rigidity. In addition, as shown in FIG. 5 (e), by omitting the rubber layer 33d in a specific direction, it is possible to make an adjustment such that the elastic force in the specific direction is weaker than other parts. In the illustrated example, the elastic force exerted by the elastic support means 33 is set to be smaller in the left-right direction than in the front-rear direction. Although not shown, when the support shaft is in the direction of sleepers, the rigidity of the shock absorbing rubber bush is generally in the radial direction> axial direction, so that it is not necessary to give anisotropic characteristics to the rubber bush. The relationship of front-rear rigidity> left-right rigidity can be obtained. As a result, it is possible to increase the flexibility and deformation in the left-right direction without reducing the front-rear load transmission function, and to increase the buffering capacity against the torsional moment that exerts a large external force in the left-right direction and the absorption stroke.

  Further, the connecting rigidity between the vehicle bodies 2 and 3 changes in accordance with the left and right distance between the left and right support portions 331 and 331 and the right and left distance between the left and right supported portions 341 and 341. Therefore, although not shown, if the left-right distance between the support portions 331, 331 and the left-right distance between the supported portions 341, 341 are variable, or selected from a plurality of types, Furthermore, the optimum condition using two things can be obtained by adjusting or selecting the interval, and can easily cope with a plurality of vehicle types and a plurality of connection conditions at low cost.

  In addition to the above, the elastic support means 33 includes, as shown in FIG. 10, a spherical bearing 332 fitted to a support shaft as the support portion 331, and a mounting hole as a supported portion 341 that fits around the outer periphery thereof. , Can work between. Thereby, the movable bracket 34 can freely swing up and down without impairing the torsional moment and the buffering action of the movable bracket 34, and the function of blocking the transmission of the vertical load at the upper connecting portion 102 and thereby. Increased benefits.

  Swing up and down between the vehicle bodies 2 and 3 to prevent transmission of the vertical load, giving priority to the support of the vehicle body 3 without the trolley by the vehicle body 2 with the trolley 1 by the lower connecting portion 101, and avoiding competition with the support In addition, it is possible to flexibly cope with variations and fluctuations in the support height at the lower connecting portion 101 by the vehicle body 2 with the vehicle 1 of the vehicle body 3 without a vehicle and the vehicle body 3 falling down. As a result, the load sharing borne by the lower and upper connecting portions can be clarified, and the vehicle body can be reduced in weight by arranging the necessary minimum strength members.

  More specifically, the fixed brackets 31 and 32 are bolted to the vehicle bodies 2 and 3 by bolts 111 and 112 as shown in FIGS. The fixing brackets 31 and 32 on the side are connected in a fitting structure via the elastic support means 33, the spherical bearing 332 and the spherical bearing 35, and the elastic support means 33 is biased in a certain direction for position adjustment. It is possible to easily and easily realize the fixing brackets 31 and 32 that are small and light with respect to the vehicle bodies 2 and 3 on the bolting structure without being given, and that are not involved in the support of the vehicle body 3. it can. Further, the fixed bracket 32 is divided into two parts corresponding to the connecting parts so that the two parts can be connected to the movable bracket 34 via the spherical bearing 332 by individually adjusting the position.

  1 and FIG. 4, the first upper connecting portion 102 is provided between the other upper portions that leave one upper portion of each of the vehicle bodies 2 and 3, and the one upper portion is illustrated in FIG. 4 and 7, an anti-roll bar 38 is provided between a fixing bracket 37 fixed to one of the left and right sides of one vehicle body 2 and a fixing bracket 36 fixed to the other left and right of the other vehicle body 3. It has the 2nd upper connection part 103 which connected via the spherical bearing 39 as shown in FIG.5 (c), and connected between the upper parts of the vehicle bodies 2 and 3. As shown in FIG. Thus, while adopting the connection at the characteristic first upper connecting portion 102 except for one between the vehicle bodies 2 and 3 that becomes three stations, five stations, etc., By operating the anti-roll bar 38 by the second upper connecting portion 103 in the left-right direction via the spherical bearing 39, a rolling load can be transmitted between the vehicle bodies 2 and 3 to prevent relative rolling. Specifically, in a tram that connects three vehicle bodies 2 with a cart 1 and two vehicle bodies 3 without a vehicle by transmitting left and right and rolling loads while allowing pitching and yawing between the vehicle bodies 2 and 3. In addition, it has good running characteristics with yawing and pitching characteristics while obtaining articulation rigidity that moderately suppresses rolling. Here, the fixing brackets 36 and 37 can be adjusted in position by bolting them to the vehicle bodies 2 and 3 with bolts 118, and the anti-roll bar 38 and the fixing brackets 36 and 37 are connected via the spherical bearing 39. The same convenience as that described above is intended.

  Further, on the left and right of the first upper connecting portion 102 between the vehicle bodies 2 and 3 using the movable bracket 34, as shown in FIG. 1, FIG. 4, FIG. 5B and FIG. And a damper connecting portion 104 connected between the brackets 41 and 42 bolted so that the position can be adjusted by a yaw damper 43 via a spherical bearing 44, and the bearing 6 at the lower connecting portion 101 between the vehicle bodies 2 and 3; The damper connecting portion 104 can suppress the mutual yawing operation around the fulcrum provided by the spherical bearing 35 of the upper connecting portion 102 according to the damper characteristics. As a result, the running performance and stability of the vehicle during high speed running are improved. Basically, the damper connecting portion 104 may be provided at any height position between the vehicle bodies 2 and 3.

  In this embodiment, in order to connect between the vehicle bodies 2 and 3 by connecting the fixing brackets 4 and 5 extending from the lower center of the vehicle bodies 2 and 3 through the bearing 6 between the vehicle bodies 2 and 3, First, the fixing brackets 4 and 5 are fixed in advance between the connected vehicle bodies 2 and 3 so that the connecting portions 4a and 5a can face each other vertically as shown in FIGS. Keep it. Specifically, the height relationship by the connection of the vehicle bodies 2 and 3 is satisfied, and the surfaces are opposed to each other with a predetermined interval. Next, the upper and lower connecting portions 4a and 5a of the fixed brackets 4 and 5 are brought close to each other with the vehicle bodies 2 and 3 while facing the upper and lower sides to satisfy the position holding by fitting them in the longitudinal axis Z direction. Link. That is, on the support surfaces 4b and 5b of the upper and lower intermediate housings 8 and 11 which are bolted to the support surfaces 4b and 5b perpendicular to the longitudinal axis Z direction on the upper and lower connecting portions 4a and 5a opposed to each other by the bolts 7 and 9. They are held by adjusting the positions in parallel directions, and the holding positions of the bearings 6 being held are aligned to be in the position holding state, and then the upper and lower intermediate housings 8 and 11 are bolted to the support surfaces 4b and 5b. Then, the connection is completed, and the vehicle bodies 2 and 3 are connected.

  More specifically, the upper connecting portion 5a is bolted with a bolt 7 in a holding relationship having a play S1 in a position adjustment range with respect to the support surface 5b perpendicular to the longitudinal axis Z direction. The lower connecting portion 4a is held with a play S2 in the position adjustment range with respect to the support surface 4b perpendicular to the vertical axis Z direction. In relation to the lower intermediate housing 11 which is bolted by the bolt 9, the bearing 6 is fitted in the vertical Z direction to adjust the position in the play S 1 with respect to the upper connecting portion 5 a of the upper intermediate housing 8. The positional relationship for the two fittings is satisfied with the position adjustment in the play S2 with respect to the lower connecting portion 4a of the lower intermediate housing 11, and the vehicle bodies 2 and 3 are connected.

  In such a method, the fixing brackets 4 and 5 fixed in advance to the vehicle bodies 2 and 3 are placed close to each other with their upper and lower connecting portions 4a and 5a facing the vehicle bodies 2 and 3 vertically. It is connected to satisfy the position holding by fitting in the Z direction, and the vehicle bodies 2 and 3 are connected so that the relative movement according to the type of the bearing 6 can be allowed and the load can be transmitted. The bearing 6 is held by adjusting the position of the upper and lower intermediate housings 8 and 11 which are bolted to the support surfaces 4b and 5b in the direction perpendicular to the longitudinal axis Z on the upper and lower connecting portions 4a and 5a by bolts 7 and 9, respectively. In addition, the holding position of the bearing 6 being held is satisfied, and the vertical fixing brackets 4 and 5 are not adjusted, so that the vertical fixing brackets 4 and 5 on the upper and lower connecting portions 4a and 5a are included. Smaller than the whole And the upper and lower intermediate housing 8 and 11 were stable enough to loosening the bolted little by little position adjustment with each other and share with each other, can be easily and quickly connected also with high fitting Godo. As a result, it is possible to ensure a high position holding fitting degree and achieve it easily and quickly, improving workability and reducing work cost.

  Moreover, by simply bolting the upper and lower intermediate housings 8 and 11 after the position adjustment, they are stabilized by the frictional force generated by the bolt fastening pressure between the support surfaces 4b and 5b and the upper and lower intermediate housings 8 and 11, and fixed vertically. Since the brackets 4 and 5 do not need to be adjusted and can be firmly fixed to the vehicle bodies 2 and 3 by welding or the like, the upper and lower fixed brackets 4 and 5 utilizing the high fitting degree are connected to each other between the vehicle bodies 2 and 3. Can be stably connected with high accuracy, and safety performance can be improved.

  In order to connect the vehicle bodies 2 and 3, the connecting device shown in the figure is fixed in advance to one vehicle body 2 and the other vehicle body 3 so that at least the upper and lower connecting portions 4 a and 5 a face each other vertically. The upper and lower fixing brackets 4 and 5 that fit together, the bearing 6 that connects the upper and lower connecting portions 4a and 5a of the upper and lower fixing brackets 4 and 5, and the bearing 6 that is fitted and fixed in the vertical Z direction from above, An upper intermediate housing 8 fastened with bolts 7 with a play S1 in a position adjustment range in a direction perpendicular to the longitudinal axis Z with respect to the support surface 5b perpendicular to the longitudinal axis Z of the fixed bracket 5, and the bearing 6 The lower fixing bracket 4 has a play S2 of a position adjustment range in a direction perpendicular to the longitudinal axis Z with respect to the support surface 5b perpendicular to the longitudinal axis Z of the lower fixing bracket 4 from below. A lower intermediate housing 11 fastened with bolts 9 Yes so as to articulate between the vehicle body 2 may be concatenated to how the body 2 by following the procedure of the method.

  Further, the upper intermediate housing 8 vertically extends from the lower side with respect to the hole-shaped pocket 5c of the upper fixing bracket 5, and the lower intermediate housing 11 extends vertically from the upper side with respect to the hole-shaped pocket 4c of the lower fixing bracket 4, for example. The holding relationship having the play S1 and S2 that fit in the axis Z direction and match the position adjustment range in the direction perpendicular to the longitudinal axis Z is satisfied. As a result, the upper and lower fixed brackets 4 and 5 are fitted to the bearing 6 so that the upper and lower intermediate housings 8 and 11 are fitted in the vertical Z direction from the upper and lower sides and fitted in the vertical Z direction from the upper and lower sides. Since the outer housing portion 22 is held, the holding is stabilized, and it is possible to prevent the upper and lower intermediate housings 8 and 11 from being dropped or greatly displaced in the position adjustment stage.

  Further, the bearing 6 is a spherical bearing, and is suitable for dealing with yawing and pitching between the vehicle bodies 2 and 3 by being applied to the connection at the lower part of the vehicle bodies 2 and 3 in the railway vehicle as described above. Can also handle rolling. Moreover, the spherical bearing 6 is composed of upper and lower bearing members 6a and 6b each having a concave spherical surface 6d less than a hemisphere and a convex spherical surface 6c that is not limited to less than a hemisphere. The upper bearing member 6a is fitted and held in the vertical axis Z direction to the upper intermediate housing 8 and fixed with bolts 10, and the lower bearing member 6b is fitted and held in the vertical axis Z direction to the lower intermediate housing 11 It is assumed that it is fixed with a bolt 20. Thereby, the upper bearing member 6a is fitted and fixed in advance to the upper intermediate housing 8 on the upper fixing bracket 5, and the lower bearing member 6b is fitted to the lower intermediate housing 11 on the lower fixing bracket 4 in advance. The concave spherical surfaces 6d and convex spherical surfaces 6c of the vertical bearing members 6a and 6b on the vertical coupling portions 4a and 5a in the vertical fixed brackets 4 and 5 are open and the concave spherical surface 6d is less than a hemisphere. By utilizing this, it is possible to more easily achieve the connection via the spherical bearing 6 between the upper and lower connecting portions 4a and 5a by fitting them in the longitudinal Z direction without difficulty.

  Moreover, the lower fixing bracket 4 is provided on the vehicle body 3 having the carriage 1 and the upper fixing bracket 5 is provided on the vehicle body 3 having no carriage so that the upper and lower fixing brackets 4 and 5 are connected via the bearing 6. Thus, the vehicle body 2 having the carriage 1 and the vehicle body 3 having no carriage can be supported in a floating manner by placing the upper fixing bracket 5 from the vehicle body 3 having no carriage on the vehicle body 2 having the carriage 1. This is achieved by receiving via the bearing 6, that is, with a support structure in which only a compression force acts between the upper and lower fixed brackets 4 and 5.

  Here, a series of assembling and connecting procedures in the lower connecting portion 101 between the vehicle bodies 2 and 3 will be generally described as follows.

  (1) The lower bearing member 6b of the assembled bearing 6 is fitted into the lower intermediate housing 11 by means such as press fitting, and is fastened by a bolt 20 to fix both the bearing 6 and the lower intermediate housing 11.

  (2) The fixed bearing 6 and the lower intermediate housing 11 are handled as one primary bearing block, and the upper bearing member 6a of the bearing 6 is fitted into the upper intermediate housing 8 by means such as press-fitting and fastened with bolts 10. Then, both the bearing 6 and the upper intermediate housing 8 are fixed, and the secondary bearing block is assembled. However, the procedures of (1) and (2) may be reversed. In short, the secondary bearing block may be assembled first.

  (3) The secondary bearing block is fitted into the lower fixing bracket 4 that is attached to the vehicle body 2, and the secondary bearing block and the lower fixing bracket 4 are fastened by the bolt 9. The above is the procedure before the connection, and the fastening work under the connection part is unnecessary.

  (4) Finally, to connect the vehicle bodies 2 and 3, the upper fixing bracket 5 that is attached to the vehicle body 3 on the lower fixing bracket 4 that is assembled with the secondary bearing block is attached to the vehicle body 3 from above. Lowering and fitting into the upper intermediate housing 8 of the secondary bearing block and fastening from above with bolts 7, both the bearing block and the upper fixing bracket 5 are fixed, the upper and lower fixing brackets 4, 5 are connected, and the vehicle body 2 Finish the 3 connection.

  INDUSTRIAL APPLICABILITY The present invention can be practically used for connection between vehicle bodies of railway cars, can be connected easily, inexpensively, and stably with high accuracy, and can advantageously cope with torsional moments generated during curve traveling.

It is a perspective view which shows a part of vehicle which employ | adopted the connection system of the vehicle body which concerns on embodiment of this invention. It is sectional drawing of the main connection part of the vehicle of FIG. It is a top view of the connection part of FIG. It is the top view, side view, and bottom view which show the whole vehicle of FIG. FIG. 2 is a plan view of an upper connecting portion between vehicle bodies in the vehicle of FIG. 1, a side view of the upper connecting portion, a cross-sectional view of a spherical bearing of the upper connecting portion, a cross section of the elastic support means, and a plan view. FIG. 6 is a plan view and a side view of a part of the upper connecting portion of FIG. 5. It is the top view and side view which show another upper connection part between the vehicle bodies in the vehicle of FIG. It is explanatory drawing of absorption of a torsion moment, and relaxation operation | movement by the movable bracket and elastic support means in the upper connection part of FIG. It is explanatory drawing which decomposes | disassembles into the behavior for a translation in the left-right direction, and the yaw rotation behavior about the absorption and relaxation operation | movement of the torsional moment by the movable bracket and elastic support means of FIG. It is sectional drawing which shows the structural example of the spherical bearing which worked the elastic support means.

Explanation of symbols

1 Bogie 2, 3 Car body 4, 5, 31, 32, 36, 37 Fixed bracket 4a, 5a Connecting portion 4b, 5b Support surface 6 Bearing (spherical bearing)
33 elastic support means 331 support portion 34 movable bracket 341 supported portions 35, 39, 44, 332 spherical bearing 101 lower connecting portion 102 first upper connecting portion

Claims (6)

Connect the body with the carriage to the body without the carriage via a bearing that includes at least a spherical bearing and allows yawing between them. At least two supported portions on the left and right sides of the base are connected to the lower connecting portion connected to each other, the fixed bracket whose base is fixed to one vehicle body, and the two left and right support portions of the fixed bracket fixed to the other vehicle body. A movable bracket supported via an elastic support means that exerts an elastic support force in the front-rear direction and the left-right direction, and an upper connecting portion that connects the upper parts of the vehicle body by connecting via a spherical bearing. Connecting device for vehicle body. The vehicle body connecting device according to claim 1, wherein the elastic support means elastically allows the movable bracket to swing vertically. The support portion is a support shaft in a vertical direction or a sleeper direction, the supported portion is an attachment hole on the movable bracket side that fits around the outside of the support shaft, and the elastic support means is provided between the support shaft and the attachment hole. The vehicle body connecting device according to claim 1, wherein the vehicle body connecting device is applied to the vehicle body. The vehicle body connecting device according to any one of claims 1 to 3, wherein the elastic support means is operated between a spherical bearing fitted into the support portion and a mounting hole of the supported portion fitted around the outer periphery thereof. . The connecting device for a vehicle body according to any one of claims 1 to 3, wherein the elastic force exerted by the elastic support means is smaller in the left-right direction than in the front-rear direction. The left and right support parts and the left and right supported parts are respectively variable in the left-right distance between the support parts and the left-right distance between the supported parts, or are selected and used from a plurality of types. The connecting apparatus for vehicle bodies according to any one of -4.

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