JP5858639B2 - Railway vehicle - Google Patents

Description

  The present invention relates to a railway vehicle, and more particularly to a railway vehicle in which a skirt is attached to the lower side of a vehicle body.

  In high-speed railway vehicles, a skirt is widely attached below the side of the vehicle body in order to reduce noise and aerodynamic noise generated from various devices under the floor. As the skirt mounting structure, the vehicle body side mounting bracket provided on the vehicle body side and the skirt side mounting bracket provided on the skirt side are connected by a connecting shaft, thereby adjusting the mounting angle relative to the vehicle body and the rail direction (front-rear direction). It is known that the position in the sleeper direction (vehicle body width direction) and height direction can be adjusted, and that it can cope with thermal expansion and contraction (see, for example, Patent Document 1).

JP 2008-207606 A

  However, in the thing of the above-mentioned patent document 1, the reference | standard connection part which performs positioning in the front-back direction changes the insertion number of spacers, and adjusts the connection position of a vehicle body side mounting bracket and a skirt side mounting bracket. Therefore, when adjusting the mounting position of the skirt, it is necessary to pull out the connecting bolt of the connecting shaft and then insert and remove the spacer, which makes the adjustment work complicated. On the other hand, the connecting part that supports thermal expansion and contraction requires smooth finishing of the outer peripheral surface of the connecting shaft and the inner peripheral surface of the connecting shaft insertion hole in order to enable smooth sliding of both brackets. In order to prevent dust and rainwater from entering the sliding surface between the shaft and the connecting shaft insertion hole, it is necessary to take measures such as mounting O-rings at both ends of the connecting shaft insertion hole. For this reason, even if it is not necessary to cope with thermal expansion and contraction between the skirt and the vehicle body, there is a problem that it takes time to process the vehicle body side mounting bracket, the skirt side mounting bracket, and the connecting shaft.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a railway vehicle having a skirt mounting structure that can easily and reliably mount a skirt to the lower side of a vehicle body.

In order to achieve the above object, a railway vehicle according to the present invention includes a skirt disposed below a vehicle body, a vehicle body side mounting bracket provided on the vehicle body, a skirt side mounting bracket provided on the skirt, and the vehicle body side mounting. In a railway vehicle attached by a connecting member having a connecting shaft for connecting a bracket and the skirt side mounting bracket, the connecting member includes a vehicle body outer side direction of the vehicle body side mounting bracket and a vehicle body inner side direction of the skirt side mounting bracket. either one projects provided, and a pair of connecting arms having a connecting bolt insertion hole with its axis in the longitudinal direction of the vehicle body, the pair of disposed between the connecting arms the body-side mounting bracket and said skirt Rotation with collar insertion hole provided on either side of the side mounting bracket with the axis line in the longitudinal direction of the vehicle And a tubular collar inserted into the collar insertion hole, and inserted through one of the connection bolt insertion holes of the pair of connection arms, penetrates the inside of the collar in the axial direction, and passes through the other connection bolt insertion hole. A collar having a wedge surface formed by a surface inclined with respect to the axis at the tip. The body is formed in a state in which the wedge surfaces are brought into contact with each other so that the axes of the pair of collar halves coincide with each other, and the nut is temporarily fixed to the male screw portion when the nut is temporarily fixed to the collar. By moving and rotating the moving arm in the axial direction, the position of the skirt in the front-rear direction and the mounting angle are adjusted, the skirt is placed in a preset state with respect to the vehicle body, and the temporary fixing By the state entered into a state of the nut, the said pair of connecting arms is deformed toward each other pair of color halves is axially compressed, it said collar narrow between the pair of connection arms The vehicle body side mounting bracket is supported by press-fitting, and the front end side of the wedge surface of one collar half is press-fitted between the base side of the wedge surface of the other collar half and the inner peripheral surface of the collar insertion hole. And the skirt-side mounting bracket are connected and fixed via a compressed collar and a connecting bolt, and the skirt is fixed to the lower side of the railway vehicle body side with the vehicle body longitudinal direction position and mounting angle fixed. It is characterized by being attached. Furthermore, the coupling bolt holes are formed on the axis with a long elongated hole in the vehicle body width direction toward the vehicle front-rear direction, when the nut is temporarily fixed, the connecting bolt of the connecting bolt insertion hole vehicle width direction position of the moving Thus the skirt to is adjusted, in the state where the fastening said nut, previously set the skirt to the vehicle body is deformed in a direction coming close to the pair of connecting arms to one another A mounting bolt insertion hole, which is disposed at a position in the vehicle body width direction and has a long elongated hole in the vertical direction with the axis line oriented in the vehicle body width direction, is provided on the rotating arm, and the mounting bolt inserted through the mounting bolt insertion hole is a nut. when the nut held in the holding member is temporarily fixed, the times by one of the vehicle body mounting bracket and the skirt-side mounting bracket is moved relative to the other In the state where the vertical position of the arm is adjusted and the mounting bolt is fastened to the nut fixed to the nut holding member, the vertical mounting position where the rotating arm is preset with respect to the panel or the vehicle body It is preferable to be configured so as to be disposed on the surface.

  According to the railway vehicle of the present invention, the wedge surfaces of the pair of collar halves are brought into contact with each other and brought into contact with each other, and the collar in the state where the axes coincide with each other is inserted into the collar insertion hole of the rotating arm, and the connection bolts are connected to both In the state where the nut is temporarily fixed by inserting it into each bolt insertion hole and collar of the arm, the outer diameter of the collar is formed smaller than the inner diameter of the collar insertion hole. It is possible to adjust the position with respect to the axial direction, and to adjust the angle around the collar. As a result, it is possible to absorb the manufacturing error of the vehicle body, the skirt, each bracket, etc., and to reliably arrange the skirt at a predetermined position below the side portion of the vehicle body. After adjusting the position of the skirt, tighten the connecting bolts and nuts to deform both connecting arms closer to each other, and compress the collar in the axial direction on the inner surface of both connecting arms, so that the tip of the collar half will become the wedge surface As the axis of both collar halves shifts, the tip side of one wedge surface is press-fitted between the base side of the other wedge surface and the collar insertion hole, so that the collar is Since the collar and collar insertion hole are fixed by pressing the outer peripheral surface of the collar on the inner peripheral surface of the collar insertion hole, the vehicle body side mounting bracket and the skirt side mounting bracket are fixed in a state after position adjustment. The skirt can be attached in a predetermined state at a predetermined position below the side of the vehicle body. Therefore, the position adjustment and fixing of the skirt can be performed easily and reliably, and the appearance of the railway vehicle including the skirt can be reliably finished in a predetermined state. Compared to conventional ones, it is not necessary to insert and remove spacers, and workability can be improved, and finishing processing considering the thermal expansion and contraction after installation of the skirt and installation of an O-ring are not required. As a skirt mounting structure when it is not necessary to cope with thermal expansion and contraction, it is possible to reduce member manufacturing costs and processing costs.

It is II sectional drawing of FIG. It is II-II sectional drawing of FIG. It is a top view of the principal part which shows one example of the connection member in the rail vehicle of this invention. FIG. 6 is a sectional view taken along line IV-IV in FIG. 5. It is a side view which shows the attachment state of the skirt to a vehicle body. It is a disassembled perspective view of a skirt side mounting bracket, a collar, and a connecting shaft.

  Below the side of the vehicle body 11 in a railway vehicle traveling at high speed, a truck skirt 12 is provided on the carriage part in order to block noise from equipment and trucks under the vehicle body and reduce air resistance during traveling. The other portions are respectively provided with device covering skirts 13, and the carriage skirt 12 is divided into a pair of long and short skirt panels 12 a and 12 b in the longitudinal direction of the vehicle body. These skirts 12 and 13 are attached in a predetermined state at predetermined positions below the vehicle body via connecting members 14 provided at a plurality of locations in the vehicle longitudinal direction.

  The connecting member 14 includes a vehicle body side mounting bracket 15 fixed to the lower surface of the floor member 11a of the vehicle body 11 with mounting bolts 16a, a skirt side mounting bracket 17 fixed to the skirt panel 12a with mounting bolts 16b, and a vehicle body side mounting bracket. 15 and a connecting shaft 18 that connects the skirt-side mounting bracket 17. The connecting shaft 18 includes a connecting bolt 18 a and a nut 18 b, and a collar 19 through which the connecting bolt 18 a is inserted.

  The vehicle body side mounting bracket 15 is formed by processing a metal plate, and includes a horizontal vehicle body fixing portion 15a fixed to the vehicle body 11, and a pair of connecting arms protruding from the vehicle body fixing portion 15a toward the vehicle body outer side. 15b, and both connecting arms 15b are respectively formed with connecting bolt insertion holes 15c each having a long hole extending in the vehicle body width direction with the axis line in the vehicle body front-rear direction. The length of the connecting bolt insertion hole 15c (the length dimension of the long hole) is set to an appropriate dimension necessary for position adjustment in the vehicle body width direction due to manufacturing error of each part.

  The skirt side mounting bracket 17 is formed by processing a thick metal plate, and includes a rotary arm 17b having a circular collar insertion hole 17a for inserting the collar 19 in the longitudinal direction of the vehicle body, and a skirt panel. The skirt fixing portion 17c is provided with a mounting bolt insertion hole 17d, which is a long hole extending in the vertical direction, with its axis line directed in the vehicle body width direction. The length (length dimension of the long hole) of the mounting bolt insertion hole 17d is set to an appropriate dimension required for vertical position adjustment due to manufacturing errors of each part. Further, a nut holding member 20 that is movable in the vertical direction along the skirt fixing portion 17c is attached to the skirt fixing portion 17c, and a nut 16c into which the mounting bolt 16b is screwed to the nut holding member 20 is previously provided. It is fixed.

  The collar 19 is formed by combining a pair of collar halves 19a and 19a made of a tubular body having an inner diameter that can be inserted through the connecting bolt 18a and an outer diameter that is smaller than the inner diameter of the collar insertion hole 17a. Each collar half 19a has a base end surface 19b whose base end is perpendicular to the axis, and a wedge surface 19c made of a surface inclined with respect to the axis at the front end. Is provided. The two collar halves 19a are used as the collar 19 in the connecting shaft 18 in a state where the wedge surfaces 19c are brought into contact with each other and the axes of the two collar halves 19a are aligned.

  The dimensions of the base end surfaces 19b of the collar 19 in a state where the wedge surfaces 19c of the collar halves 19a are in contact with each other, that is, the length of the collar 19 in the axial direction are arranged between the opposing surfaces of the pair of connecting arms 15b. As long as it is possible, as shown in the present embodiment, when it is disposed between the opposing surfaces of the pair of connecting arms 15b via the washer 21, the washer 21 provided on the opposing surfaces of the connecting arm 15b. The dimension is set to be equal to or slightly shorter than the distance between the opposing surfaces. The length of the collar 19 in the axial direction when the washer 21 is not used is set to be equal to or slightly shorter than the distance between the opposing surfaces of the connecting arm 15b.

  Both base end surfaces 19b of the collar 19 inserted through the collar insertion hole 17a are disposed between the both connecting arms 15b via a washer 21, and the connecting bolt 18a is connected to each washer 21, from one connecting arm 15b side. A male screw portion formed at the distal end portion of the connecting bolt 18a that is inserted through each connecting bolt insertion hole 15c and the collar 19 to penetrate to the other connecting arm 15b side and protrudes outward from the other connecting arm 15b and the washer 21. When the nut 18b is lightly screwed into the nut 18b and temporarily fixed, the outer diameter of the collar 19 is smaller than the inner diameter of the collar insertion hole 17a, so that the collar insertion hole 17a and the collar 19 can move in the axial direction relative to each other and rotate. It is ready to move. The dimension that can be moved in the axial direction and the angle range that can be rotated in the temporarily fixed state are set to appropriate dimensions that can be adjusted according to manufacturing errors of the respective parts, as described above.

  Further, since the connecting bolt 18a and the nut 18b are temporarily fixed, the connecting bolt 18a can move in the vehicle body width direction in the connecting bolt insertion hole 15c formed by a long hole formed in the connecting arm 15b. Further, in the state where the mounting bolt 16b penetrating the skirt panel 12a is screwed into the nut 16c held by the nut holding member 20 and temporarily fixed, the mounting bolt insertion hole formed by a long hole formed in the skirt fixing portion 17c. It is in a state in which it can move up and down in 17d.

  Therefore, in the state where each bolt and nut are temporarily fixed, the position of the skirt panel 12a in the vehicle body width direction is moved by the movement of the connection bolt 18a in the connection bolt insertion hole 15c, and the movement of the attachment bolt 16b in the attachment bolt insertion hole 17d. The skirt panel 12a is moved up and down, the skirt side mounting bracket 17 is moved in the axial direction relative to the collar 19, the skirt panel 12a is moved forward and backward, and the skirt side mounting bracket 17 is rotated around the collar 19 to rotate the skirt panel. The skirt panel 12a can be arranged in a preset state with respect to the vehicle body 11 by adjusting the mounting angle of 12a.

  After the skirt panel 12a is positioned, when the connecting bolt 18a and the nut 18b are tightened, the connecting arms 15b are centered on the base on the vehicle body fixing portion 15a side by the fastening force of the connecting bolt 18a and the nut 18b. The distal end side of 15b is deformed in the approaching direction, and along with the deformation of both connecting arms 15b, both base end surfaces 19b of the collar 19 are pressed against both connecting arms 15b via a washer 21, and the collar 19 is compressed in the axial direction. It will be in a state to be. When the collar 19 is compressed in the axial direction, the wedge surfaces 19c of the two color halves 19a slide with each other, the axial lines of the two color halves 19a shift, and the base side of the wedge surface 19c that the front end side of the wedge surfaces 19c faces. The front end side of the wedge surface 19c of one collar half 19a is press-fitted between the base side of the wedge surface 19c of the other collar half 19a and the inner peripheral surface of the collar insertion hole 17a. It becomes a state.

  As a result, the collar 19 is fixed in the collar insertion hole 17a by the action of the wedge, and at the same time, the connection bolt 18a is fixed in the connection bolt insertion hole 15c by tightening the nut 18b. The mounting bracket 15 and the skirt side mounting bracket 17 are connected and fixed via a collar 19 and a connecting bolt 18a, and the vehicle body width direction position, the front-rear direction position and the mounting angle of the skirt panel 12a are fixed. Further, since the vertical position of the skirt panel 12a is fixed by tightening the mounting bolt 16b to the nut 16c, the skirt panel 12a is fixed to the lower side of the vehicle body 11 in a preset state.

  Thus, the collar 19 in a state where the wedge surfaces 19c of the pair of collar halves 19a are in contact with each other is inserted into the collar insertion hole 17a having an inner diameter slightly larger than the outer diameter of the collar 19, and the connecting bolt 18a and the nut are inserted. 18b is in a temporarily fixed state, the outer peripheral surface of the collar 19 and the inner peripheral surface of the collar insertion hole 17a are connected so as to be movable and rotatable in the axial direction. Position adjustment and angle adjustment can be easily performed, and after positioning by adjusting the position and angle of the skirt panel 12a, the connection bolt 18a and the nut 18b are tightened to form a pair of collar halves 19a. Since the collar 19 can be fixed in the collar insertion hole 17a by the wedge action of the wedge surface 19c, Constant can also be performed easily and reliably.

  In addition, the pair of collar halves 19a can easily produce the wedge surface 19c by cutting the central portion of the tube obliquely at an appropriate angle, usually about 30 degrees with respect to the axis. Only the portion of the wedge surface 19c needs to be simply processed, such as deburring, and it is not necessary to finish the outer peripheral surface or the O-ring mounting groove and to finish the inner peripheral surface of the collar insertion hole 17a. As a result, the cost of manufacturing parts can be greatly reduced.

  In this embodiment, one connecting member of one panel of the carriage skirt has been described as an example. However, the same applies to the case where each skirt panel including the device covering skirt is attached to the lower part of the vehicle body. The shape of is arbitrary. Also, the bracket having a pair of connecting arms can be on the skirt side, and the bracket having a rotating arm can be on the vehicle body side, and other adjustment structures may be adopted for the vehicle body width direction and vertical position adjustment. . Furthermore, it is also possible to attach one skirt panel to the vehicle body using a connecting member as shown in this embodiment and a conventional connecting member considering thermal expansion and contraction.

  DESCRIPTION OF SYMBOLS 11 ... Car body, 11a ... Floor member, 12 ... Carriage skirt, 12a, 12b ... Skirt panel, 13 ... Equipment covering skirt, 14 ... Connecting member, 15 ... Car body side mounting bracket, 15a ... Car body fixing part, 15b ... Connecting arm 15c: Connecting bolt insertion hole, 16a, 16b: Mounting bolt, 16c: Nut, 17 ... Skirt side mounting bracket, 17a ... Collar insertion hole, 17b: Rotating arm, 17c ... Skirt mounting arm, 17d: Bolt insertion part, DESCRIPTION OF SYMBOLS 18 ... Connection shaft, 18a ... Connection bolt, 18b ... Nut, 18c ... Male screw part, 19 ... Collar, 19a ... Collar half body, 19b ... Base end surface, 19c ... Wedge surface, 20 ... Nut holding member, 21 ... Washer

Claims (2)

A skirt disposed below the vehicle body, a vehicle body side mounting bracket provided on the vehicle body, a skirt side mounting bracket provided on the skirt, and a connecting shaft that connects the vehicle body side mounting bracket and the skirt side mounting bracket. In a rail vehicle attached by a connecting member with
The connecting member includes a pair of connecting bolt insertion holes provided so as to protrude in either the vehicle body outer side direction of the vehicle body side mounting bracket or the vehicle body inner side direction of the skirt side mounting bracket and having an axis line in the vehicle body front-rear direction. And a collar insertion hole disposed between the pair of connecting arms and provided on one of the vehicle body side mounting bracket and the skirt side mounting bracket and having an axis line in the vehicle longitudinal direction. A movable arm, a tubular collar inserted into the collar insertion hole, and the other connection bolt insertion hole inserted through one of the connection bolt insertion holes of the pair of connection arms and passing through the inside of the collar in the axial direction. A connecting bolt with a male screw protruding from the nut, and a nut screwed onto the male screw of the connecting bolt. A pair of collar halves having a wedge surface formed, said wedge surfaces are brought into contact is formed in a state of being matched with the axis of said pair of color halves,
When the nut is temporarily fixed to the male screw part, the front and rear direction position and the mounting angle of the skirt are adjusted by moving and rotating the rotating arm with respect to the collar, Place the skirt in a preset state with respect to the car body,
When the nuts in the temporarily fixed state are fastened, the pair of connecting arms are deformed in directions close to each other, the pair of collar halves are compressed in the axial direction, and the collar is the pair of connecting arms. The vehicle body is supported with a narrow pressure therebetween, and the front end side of the wedge surface of one collar half is press-fitted between the base side of the wedge surface of the other collar half and the inner peripheral surface of the collar insertion hole. A side mounting bracket and the skirt side mounting bracket are connected and fixed via a collar and a connecting bolt in a compressed state, and the skirt is fixed to the vehicle body side of the railway vehicle with the vehicle body longitudinal direction position and mounting angle fixed. A rail vehicle characterized by being attached to the lower part of the vehicle. The coupling bolt insertion hole is formed on the axis with a long elongated hole in the vehicle body width direction toward the vehicle front-rear direction, when the nut is temporarily fixed, the connecting bolt is moved the connecting bolt insertion hole is adjusted in particular therefore the vehicle widthwise position of said skirt, in the state where the fastening said nut, preset the skirt to the vehicle body is deformed in a direction coming close to the pair of connecting arms to one another has been vehicle width Placed in the direction position,
The rotating arm is provided with a mounting bolt insertion hole formed with a long long hole in the vertical direction with the axis line in the vehicle body width direction, and the mounting bolt inserted through the mounting bolt insertion hole is temporarily attached to the nut held by the nut holding member. when being fastened, wherein one of the body-side mounting bracket and the skirt-side mounting bracket is adjusted vertical position of the rotary Doude by moving relative to the other, it is secured to the nut-holding member The railway vehicle according to claim 1, wherein the rotating arm is disposed at a predetermined vertical mounting position with respect to the panel or the vehicle body in a state where the mounting bolt is fastened to the nut. .

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