JP2016222155A - Articulated bus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an articulated bus in which deformation of a rear vehicle can be suppressed.SOLUTION: An articulated bus comprises a front vehicle, a rear vehicle which is located on a vehicle longitudinal direction rear side of the front vehicle, and a connection part which so connects the front vehicle and the rear vehicle to each other as to be capable of oscillating. The rear vehicle comprises: a rear chassis frame 31; a rear vehicle body on which an entrance for getting-on-and-off of a crewman is formed; an air tank 86 for a parking brake; and a fixation member which fixes the air tank 86 for the parking brake to the rear chassis frame 31. The fixation member is fixed to the rear chassis frame 31 on a vehicle longitudinal direction front side with respect to the entrance and at end on the entrance side in a vehicle width direction.SELECTED DRAWING: Figure 8

Description

  The present invention relates to an articulated bus in which a front vehicle and a rear vehicle are articulated so as to be swingable in the vehicle front-rear direction.

  In Japan, an articulated bus connecting the front and rear vehicles was introduced at the 1985 Tsukuba Expo. The articulated bus is a bus in which openings are provided on the rear surface of the front vehicle and the front surface of the rear vehicle so that passengers can move between the front vehicle and the rear vehicle. This articulated bus is a towing (puller) articulated bus in which a front vehicle pulls a rear vehicle. Since the engine is mounted under the center floor of the front vehicle, the towed articulated bus is a two-step bus with a raised floor and two steps at the entrance.

Japanese Patent Application Laid-Open No. 07-205844

  In recent years, non-step low-floor buses that have a lower floor and eliminate steps have become mainstream in order to improve ease of getting on and off. In the low-floor bus, the floor is lowered and non-stepped by mounting the engine at the rear end of the vehicle. In view of the trend of such times, it is considered that there is a strong demand for lower floors and non-stepping even in articulated buses. In view of this, it is conceivable that the articulated bus can be lowered and non-stepped by mounting the engine at the rear end of the rear vehicle and using a pusher-type articulated bus that pushes the front vehicle with the rear vehicle.

  However, when the engine is mounted on the rear vehicle, a large compression and tensile load due to acceleration / deceleration of the engine driving force acts near the joint portion of the rear vehicle. In particular, when the vehicle body adopts a skeleton structure (frame structure) that contributes to the strength and rigidity of the entire bus (see, for example, Patent Document 1), a large compressive tensile load due to acceleration / deceleration of engine propulsive force is also applied to the vehicle body of the rear vehicle. Works. In addition, since the articulated bus is disconnected from the continuity of the vehicle body at the articulated portion, the vehicle body of the rear vehicle is reduced in strength and rigidity near the articulated portion. Moreover, since the entrance / exit for passengers to get on and off is attached to the vehicle body of the rear vehicle, the strength and rigidity of the vehicle body of the rear vehicle are also reduced in the vicinity of the entrance / exit.

  As described above, the articulated bus with a low floor has a problem that deformation due to buckling deformation, bending, bending, welding peeling, or the like is likely to occur near the articulated portion of the rear vehicle.

  Then, an object of this invention is to provide the articulated bus which can suppress a deformation | transformation of a rear vehicle.

  As a result of intensive studies to achieve the above object, the present inventor has come to the knowledge that the deformation of the rear vehicle can be suppressed by utilizing the air tank mounted on the articulated bus.

  That is, the articulated bus according to the present invention includes a front vehicle, a rear vehicle disposed behind the front vehicle in the vehicle front-rear direction, and a articulated portion that articulates the front vehicle and the rear vehicle in a swingable manner. The rear vehicle includes a rear chassis frame, a rear vehicle body formed with a passenger entrance on which an occupant gets on and off, an air tank filled with air, and a fixing member that fixes the air tank to the rear chassis frame. The fixing member is fixed to the rear chassis frame in front of the entrance / exit from the entrance / exit and at the end on the entrance / exit side in the vehicle width direction.

  In the articulated bus according to the present invention, the rigidity and strength of the rear body of the rear vehicle are reduced in the vicinity of the articulated portion and the entrance / exit. However, since the fixing member is fixed to the rear chassis frame, the rigidity and strength of the rear chassis frame of the rear vehicle are increased at the front side in the vehicle front-rear direction than the entrance and at the end on the entrance side in the vehicle width direction. Rise. That is, the rigidity and strength of the rear chassis frame are increased in the vicinity of the joint portion where the rigidity and strength of the rear vehicle body are reduced and in the vicinity of the entrance / exit. Thereby, even if it does not add a special reinforcement member to a rear vehicle, the deformation | transformation of the vehicle front-back direction front-end part of a rear vehicle can be suppressed.

  The rear chassis frame may be composed of a plurality of skeleton members, and the fixing member may be connected to two or more skeleton members. In this articulated bus, since the fixing member connects two or more skeleton members, the rigidity and strength of the rear chassis frame can be appropriately increased.

  The rear vehicle includes a seat disposed in front of the vehicle entrance / exit from the entrance / exit and at an end on the entrance / exit side in the vehicle width direction, and the air tank may be covered by the seat. In this articulated bus, the air tank is disposed at the same position as the seat in the vertical direction of the vehicle and is covered by the seat. For this reason, it can suppress that the vehicle interior space of a rear vehicle becomes narrow with an air tank.

  According to the present invention, deformation of the rear vehicle can be suppressed.

It is a schematic side view of an articulated bus. It is a schematic plan view of a joint part. It is the perspective view which looked at the vehicle interior of the rear vehicle from back. It is a perspective view which shows the state which removed the seat in FIG. It is a top view which shows a rear part chassis frame. It is an assembly drawing of an air tank for a parking brake and a fixing member. It is a top view which shows the state which fixed the base to the rear part chassis frame. It is a top view which shows the state which attached the air tank for parking brakes to the rear part chassis frame. It is a side view which shows the state of FIG. FIG. 10 is a cross-sectional view showing the relationship between the seat and the parking brake air tank in the cross section taken along line XX shown in FIG. 9. It is a figure for demonstrating the attachment method of the air tank for parking brakes.

  Hereinafter, the articulated bus according to the embodiment will be described in detail with reference to the drawings. In the following description, the same or equivalent elements will be denoted by the same reference numerals, and redundant description will be omitted. In the following description, front and rear in the vehicle front-rear direction are also simply referred to as front and rear, and upper and lower in the vehicle vertical direction are also simply referred to as upper and lower.

[Basic structure of articulated bus]
FIG. 1 is a schematic side view of an articulated bus. As shown in FIG. 1, the articulated bus 1 of this embodiment includes a front vehicle 2, a rear vehicle 3, and a articulated portion 4.

  The front vehicle 2 is disposed on the front side of the articulated bus 1 in the vehicle front-rear direction. The front vehicle 2 is a driven vehicle on which an engine that drives the articulated bus 1 is not mounted. The front vehicle 2 has a low floor like a non-step bus.

  A front wheel 23 a located on the front side in the vehicle front-rear direction and a first rear wheel 23 b located on the rear side in the vehicle front-rear direction are attached to the front vehicle 2. The front wheels 23a are steering wheels connected to a steering mechanism. The front wheel 23a and the first rear wheel 23b are driven wheels that are not rotationally driven.

  The front vehicle 2 includes a front chassis frame 21 and a front vehicle body 22 connected to the front chassis frame 21.

  The front chassis frame 21 is composed of a plurality of skeleton members. The front chassis frame 21 includes at least a laterally extending portion 21a (see FIG. 2) extending in the vehicle width direction at the rear end portion in the vehicle front-rear direction. The laterally extending portion 21a is a member connected to the articulated portion 4 and is also called a bulkhead. A floor 25 of the front vehicle 2 is placed and fixed on the front chassis frame 21.

  The front vehicle body 22 has a skeleton structure (skeleton structure) in which a pentahedron is configured by a plurality of skeleton members. More specifically, the front body 22 includes a side structure (not shown) located on the right side of the vehicle, a left structure 22a located on the left side of the vehicle, and a roof structure ( (Not shown), a rear structure portion (not shown) located on the vehicle rear surface side, and a front structure portion (not shown) located on the vehicle front side. The front chassis frame 21 is connected to the right structure part, the left structure part 22a, the rear structure part, and the lower end part of the front structure part by welding or the like. Note that a passage opening 27 (see FIG. 3) is formed in the rear structure portion of the front vehicle 2 for a passenger to go back and forth between the front vehicle 2 and the rear vehicle 3.

  The rear vehicle 3 is disposed on the rear side of the articulated bus 1 in the vehicle front-rear direction. The rear vehicle 3 is a drive vehicle in which an engine E / G that drives the articulated bus 1 is mounted at a rear end portion in the vehicle front-rear direction. The rear vehicle 3 is lowered like a non-step bus.

  The rear vehicle 3 is attached with a second rear wheel 33 located at the center in the vehicle longitudinal direction. The second rear wheel 33 is a drive wheel that is driven to rotate by the rotation of the engine E / G to drive the articulated bus 1.

  The rear vehicle 3 includes a rear chassis frame 31 and a rear vehicle body 32 connected to the rear chassis frame 31.

  The rear chassis frame 31 is composed of a plurality of skeleton members. The rear chassis frame 31 includes at least a first laterally extending portion 31a (see FIG. 2) extending in the vehicle width direction at the front end portion in the vehicle front-rear direction. The first laterally extending portion 31a is a member connected to a joint mechanism 41 of the joint portion 4 described later, and is also called a bulkhead. The floor 35 of the rear vehicle 3 is placed and fixed on the rear chassis frame 31. Details of the rear chassis frame 31 will be described later.

  The rear vehicle body 32 has a skeleton structure (skeleton structure) in which a pentahedron is configured by a plurality of skeleton members. More specifically, the rear body 32 includes a right structure (not shown) located on the vehicle right side, a left structure 32a located on the vehicle left side, and a roof structure (not shown) located on the vehicle top side. And a front structure part (not shown) located on the front side of the vehicle, and a rear structure part (not shown) located on the rear side of the vehicle. The rear chassis frame 31 is connected to the right structure, the left structure 32a, the front structure, and the lower end of the rear structure by welding or the like. Note that a passage opening 37 (see FIG. 3) for a passenger to go back and forth between the front vehicle 2 and the rear vehicle 3 is formed in the front structure portion of the rear vehicle 3.

  FIG. 2 is a schematic plan view showing the articulated portion. As shown in FIGS. 1 and 2, the articulating portion 4 is a articulated joint between the front vehicle 2 and the rear vehicle 3 so that the front chassis frame 21 and the rear chassis frame 31 can swing in the vehicle longitudinal direction. To do. The articulating portion 4 includes an articulating mechanism 41, a passage portion 42, and a hood 43.

  The articulation mechanism 41 includes a front connection part 41a connected to the laterally extending part 21a of the front chassis frame 21 and a rear side connection part 41b connected to the first laterally extended part 31a of the rear chassis frame 31. . The front connection portion 41a and the rear connection portion 41b are connected between the front vehicle 2 and the rear vehicle 3 so as to be swingable about an axis extending in the vehicle vertical direction. The articulation mechanism 41 does not connect the front chassis frame 21 and the rear chassis frame 31 easily and detachably like a trailer (towing vehicle), but instead of connecting the front chassis frame 21 and the rear part by fastening bolts. The chassis frame 31 is non-detachably connected. However, when there are special circumstances such as when maintenance is performed, the front chassis frame 21 and the rear chassis frame 31 can be separated by removing the bolts.

  The passage portion 42 is bridged between the floor 25 of the front vehicle 2 and the floor 35 of the rear vehicle 3 and is placed on the articulation mechanism 41. The hood 43 is attached to the front vehicle 2 and the rear vehicle 3, covers the articulation mechanism 41 and the passage portion 42, and includes a passage opening 27 of the front vehicle 2 and a passage opening 37 of the rear vehicle 3. A communicating passage space is formed.

[Details of rear vehicle]
FIG. 3 is a perspective view of the interior of the rear vehicle as viewed from the rear. 4 is a perspective view showing a state in which the seat is removed in FIG. As shown in FIGS. 1, 3, and 4, the left side structural portion 32 a on the left side of the rear vehicle body 32 is provided with an entrance 51 and an entrance door 52. The entrance 51 is an opening formed in the left side structure portion 32a. For this reason, the strength and rigidity of the rear vehicle body 32 decrease near the entrance 51. The entrance door 52 is a door that opens and closes the entrance 51.

  A seat 53 on which a passenger sits is provided in the vehicle interior of the rear vehicle body 32. The seat 53 is disposed in front of the entrance / exit 51 in the front-rear direction of the vehicle and at an end of the entrance / exit 51 in the vehicle width direction (on the left side structure 32a side where the entrance / exit 51 is formed). More specifically, the seat 53 is a seat for a plurality of persons that is directed inward in the vehicle width direction and is long in the vehicle front-rear direction. And the backrest of the seat 53 is attached to the left side structure part 32a ahead of the entrance / exit 51 in the vehicle front-rear direction. The backrest of the seat 53 can be attached to the left structural portion 32a by, for example, locking with a hook, bolting, or the like. A seat other than the seat 53 is also provided in the vehicle interior of the rear body 32.

  The seat 53 is divided into a seat body 53a and a base portion 53b. The seat body 53a is a part on which an occupant directly sits, and includes a backrest (seat back), a seat (seat cushion), an armrest, and the like. The base 53b is a part that holds the seat body 53a at a predetermined height. The base portion 53b is formed in a substantially box shape in which the bottom surface and the side surface on the outer side in the vehicle width direction are cut out. The lower end portion of the base portion 53b is fixed to the wall portion 38 that is fixed to the floor 35 and covers the lower end portion of the base portion 53b. Moreover, the vehicle width direction outer side edge part of the base part 53b is fixed to the left side structure part 32a. And the part covered by the base part 53b of the floor 35, ie, the part surrounded by the wall part 38 of the floor 35 is cut out, and the opening 36 is formed.

  FIG. 5 is a plan view showing the rear chassis frame. As shown in FIG. 5, the rear chassis frame 31 is composed of a plurality of skeleton members. The rear chassis frame 31 includes a first laterally extending portion 31a, a second laterally extending portion 31b extending in the vehicle width direction behind the first laterally extending portion 31a, and a vehicle longitudinally of the second laterally extending portion 31b. And a third laterally extending portion 31c extending in the vehicle width direction at the rear of the direction. The rear chassis frame 31 includes a plurality of first longitudinally extending portions 31d connected to the first laterally extending portion 31a and the second laterally extending portion 31b, a second laterally extending portion 31b, and a third laterally extending portion 31c. A plurality of second longitudinally extending portions 31e connected to each other. The rear chassis frame 31 also includes a skeleton member other than these.

  The first laterally extending portion 31 a, the second laterally extending portion 31 b, the third laterally extending portion 31 c, the plurality of first longitudinally extending portions 31 d, and the plurality of second vertically extending portions 31 e are skeleton members that constitute the rear chassis frame 31. It is. The first vertically extending portion 31d and the second vertically extending portion 31e may be different skeleton members or a single skeleton member. In the present embodiment, as the first vertically extending portion 31d and the second vertically extending portion 31e, at least the vertically extending portion 101 for fixing, the vertically extending portion for fixing 102, and the vertically extending portion for fixing that are disposed below the seat 53 in the vehicle vertical direction. A longitudinally extending portion 103 is provided. The fixing longitudinally extending portion 101 is a single skeleton member that is disposed at the left end in the vehicle width direction and constitutes the first vertically extending portion 31d and the second vertically extending portion 31e. The fixing longitudinally extending portion 102 is a single skeleton member that is disposed on the inner side in the vehicle width direction than the fixing vertically extending portion 101 and constitutes the first vertically extending portion 31d. The fixing vertically extending portion 103 is a single skeleton member that is disposed on the inner side in the vehicle width direction than the fixing vertically extending portion 101 and constitutes the second vertically extending portion 31e.

[Parking brake air tank mounting structure]
FIG. 6 is an assembly diagram of the parking brake air tank and the fixing member. FIG. 7 is a plan view showing a state in which the base is fixed to the rear chassis frame. FIG. 8 is a plan view showing a state in which a parking brake air tank is attached to the rear chassis frame. FIG. 9 is a side view showing the state of FIG. FIG. 10 is a cross-sectional view showing the relationship between the seat and the parking brake air tank in the cross-section along the line XX shown in FIG. As shown in FIGS. 5 to 10, a parking brake air tank 86 is mounted on the rear vehicle 3. The parking brake air tank 86 is a parking brake air tank filled with air. Two parking brake air tanks 86 are mounted on the rear vehicle 3 and arranged in the vehicle front-rear direction. The parking brake air tank 86 is disposed below the seat body 53a in the vehicle vertical direction. That is, the parking brake air tank 86 is disposed in front of the vehicle entrance / exit 51 in the front-rear direction of the vehicle and at the end of the vehicle entrance / exit 51 in the vehicle width direction. The parking brake air tank 86 protrudes upward in the vehicle vertical direction from the floor 35 through the opening 36, and is covered by the base 53 b of the seat 53.

  The parking brake air tank 86 is fixed to the rear chassis frame 31 by a fixing member 110. The fixing member 110 includes a plurality of base portions 111 and a plurality of U-shaped bolts 112.

  The base portion 111 is fixed to two or more skeleton members constituting the rear chassis frame 31, and a parking brake air tank 86 is placed thereon. The base 111 can be fixed to the rear chassis frame 31 by, for example, bolting. Specifically, the bolt B1 is inserted into the through hole H1 of the base 111 and the through hole H2 of the rear chassis frame 31. Then, a nut N1 is fastened to the bolt B1 so as to sandwich the base 111 and the rear chassis frame 31.

  The plurality of bases 111 are configured by four bases 111 including a first base 111a, a second base 111b, a third base 111c, and a fourth base 111d.

  The first base 111a, the second base 111b, the third base 111c, and the fourth base 111d are arranged in parallel in the vehicle front-rear direction. More specifically, the first base portion 111a extends linearly in the vehicle width direction and is fixed to the fixing vertically extending portion 101 and the fixing vertically extending portion 102. The second base portion 111b extends linearly in the vehicle width direction behind the first base portion 111a in the vehicle longitudinal direction, and is fixed to the fixing longitudinally extending portion 101 and the fixing longitudinally extending portion 102. The third base 111c extends linearly in the vehicle width direction behind the second base 111b in the vehicle front-rear direction, and is fixed to the fixing vertically extending portion 101 and the fixing vertically extending portion 103. The fourth base portion 111d extends linearly in the vehicle width direction behind the third base portion 111c in the vehicle longitudinal direction, and is fixed to the fixing longitudinally extending portion 101 and the fixing longitudinally extending portion 103. Therefore, the first base portion 111a and the second base portion 111b connect the fixing vertically extending portion 101 and the fixing vertically extending portion 102, and the third base portion 111c and the fourth base portion 111d are connected to the fixing vertically extending portion 101. The fixing vertically extending portion 103 is connected.

  The U-shaped bolt 112 fixes the parking brake air tank 86 mounted on the base 111 to the fixing member 110. The U-shaped bolt 112 is a bolt that is curved and formed in an inverted U shape with both ends facing downward. The U-bolt 112 sandwiches the parking brake air tank 86 from above in the vehicle vertical direction, and both ends thereof are fixed to the base 111. The U-shaped bolt 112 can be fixed to the base 111 by, for example, nut tightening. Specifically, male screw portions S in which male screws are engraved at both ends of the U-shaped bolt 112 are inserted into the through holes H <b> 3 of the base portion 111. And the nut N2 is fastened to the external thread part S so that the base 111 may be inserted | pinched.

  The plurality of U-shaped bolts 112 includes a first U-shaped bolt 112a fixed to the first base 111a, a second U-shaped bolt 112b fixed to the second base 111b, and a third fixed to the third base 111c. It is composed of four U-shaped bolts 112 including a U-shaped bolt 112c and a fourth U-shaped bolt 112d fixed to the fourth base 111d.

[How to install an air tank for parking brake]
FIG. 11 is a view for explaining a method of attaching the parking brake air tank. As shown in FIG. 11, first, the seat 53 is removed, and the rear chassis frame 31 is exposed from the opening 36 to the vehicle interior side of the rear vehicle 3.

  Next, the first base portion 111a, the second base portion 111b, the third base portion 111c, and the fourth base portion 111d are fixed to the fixing vertically extending portion 101, the fixing vertically extending portion 102, and the fixing vertically extending portion 103, respectively. Next, the parking brake air tank 86 is placed on the first base 111a, the second base 111b, the third base 111c, and the fourth base 111d. Next, the first U-shaped bolt 112a, the second U-shaped bolt 112b, the third U-shaped bolt 112c, and the fourth U-shaped bolt 112d are respectively connected to the first base 111a, the second base 111b, the third base 111c, and It fixes to the 4th base 111d. As a result, the parking brake air tank 86 is fixed to the rear chassis frame 31.

  Next, the base part 53b is put on the parking brake air tank 86, and the base part 53b is fixed to the wall part 38 and the left side structure part 32a. Next, the backrest of the seat body 53a is attached to the left structure portion 32a, and the seat body 53a is placed and fixed on the base portion 53b. This completes the installation of the parking brake air tank.

  As described above, in the articulated bus 1 according to this embodiment, the rigidity and strength of the rear vehicle body 32 are reduced in the vicinity of the articulating portion 4 and the vicinity of the entrance 51. However, since the base 111 of the fixing member 110 is fixed to the rear chassis frame 31, the rear chassis frame 31 is located at the front side in the vehicle front-rear direction than the entrance 51 and at the end on the entrance 51 side in the vehicle width direction. Increased rigidity and strength. That is, the rigidity and strength of the rear chassis frame 31 increase in the vicinity of the joint portion 4 and the vicinity of the entrance / exit 51 where the rigidity and strength of the rear vehicle body 32 decrease. Thereby, even if it does not add a special reinforcement member to the rear part vehicle 3, the deformation | transformation of the vehicle front-back direction front-end part of the rear part vehicle 3 can be suppressed.

  Further, in this articulated bus 1, the base 111 of the fixing member 110 connects the fixing vertically extending portion 101, the fixing vertically extending portion 102, and the fixing vertically extending portion 103, and thus the rigidity and strength of the rear chassis frame 31. Can be raised appropriately.

  In the articulated bus 1, the parking brake air tank 86 is disposed at the same position as the seat 53 in the vertical direction of the vehicle and is covered by the base portion 53 b of the seat 53. For this reason, the parking brake air tank 86 can suppress the space in the vehicle interior of the rear vehicle 3 from being narrowed.

  The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments. The present invention can be modified without departing from the scope described in the claims or applied to other embodiments. May be. For example, although the parking brake air tank 86 has been described as being covered by the seat 53 in the above embodiment, the parking brake air tank 86 may be covered by another member, or the floor 35 may be raised and disposed below the floor 35. . In addition, although it is described that the parking brake air tank 86 is covered by the seat 53, other air tanks may be used.

  DESCRIPTION OF SYMBOLS 1 ... Articulated bus, 2 ... Front vehicle, 3 ... Rear vehicle, 4 ... Articulated part, 21 ... Front chassis frame, 21a ... Lateral extension part, 22 ... Front vehicle body, 22a ... Left structure part, 23a ... Front wheel, 23b ... first rear wheel, 25 ... floor, 27 ... passage opening, 31 ... rear chassis frame, 31a ... first lateral extension, 31b ... second lateral extension, 31c ... third lateral extension, 31d ... 1st longitudinally extending part, 31e ... 2nd longitudinally extending part, 32 ... rear body, 32a ... left side structural part, 33 ... 2nd rear wheel, 35 ... floor, 36 ... opening, 37 ... opening for passage, 38 ... wall , 41 ... articulation mechanism, 41a ... front connection part, 41b ... rear connection part, 42 ... passage part, 43 ... hood, 51 ... entrance / exit, 52 ... entrance door, 53 ... seat, 53a ... seat body, 53b ... Stand, 86 ... Air tank for parking brake, 101 ... Vertical extension for fixing, 102 ... Vertical extension for fixing, 103 ... Fixed longitudinally extending portion, 110 ... fixing member, 111 ... base, 111a ... first base, 111b ... second base, 111c ... third base, 111d ... fourth base, 112 ... U-bolt, 112a ... first U -Shaped bolt, 112b ... second U-shaped bolt, 112c ... third U-shaped bolt, 112d ... fourth U-shaped bolt, B1 ... bolt, E / G ... engine, H1 ... through hole, H2 ... through hole, H3 ... through Hole, N1... Nut, N2... Nut, S.

Claims (3)

A front vehicle,
A rear vehicle disposed behind the front vehicle in the vehicle longitudinal direction; and
A articulated portion that articulates the front vehicle and the rear vehicle in a swingable manner,
The rear vehicle is
The rear chassis frame,
A rear vehicle body formed with an entrance for passengers to get on and off,
An air tank filled with air;
A fixing member for fixing the air tank to the rear chassis frame,
The fixing member is fixed to the rear chassis frame at the front side in the vehicle front-rear direction from the entrance and exit, and at the end on the entrance side in the vehicle width direction.
Articulated bus. The rear chassis frame is composed of a plurality of skeleton members,
The fixing member connects two or more skeleton members,
The articulated bus according to claim 1. The rear vehicle includes a seat disposed in front of the vehicle front-rear direction from the entrance and exit, and at an end on the entrance side in the vehicle width direction,
The air tank is covered by the seat;
The articulated bus according to claim 1 or 2.

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