JP2009281551A - Fluid tank installing structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fluid tank installing structure for effectively utilizing a conventionally caused dead space, without increasing manhours in a maintenance-inspection. <P>SOLUTION: This installation structure of a plurality of substantially cylindrical fluid tanks for storing fluid in an engine room mounted with a vehicle traveling engine, includes a fixed fluid tank fixed to a vehicle side immovable part in the engine room, an inspection lid for opening-closing an opening part opened in a position substantially opposed to the fixed fluid tank via a hinge installed on the opening part peripheral edge on a vehicle body wall for enclosing the engine room, and a movable fluid tank installed on an engine room inside surface of the inspection lid and movable via the hinge. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a mounting structure for a plurality of fluid tanks for storing a fluid such as an air tank in an engine room in which a vehicle traveling engine is mounted.

  Conventionally, in a vehicle, particularly in a large bus, for storing air used for opening and closing of a braking device, an exhaust gas treatment device, a suspension, a door, and the like in an excess space in an engine room where a vehicle traveling engine is mounted. Multiple air tanks are installed.

FIG. 5 is a structural view of the rear part of the bus representing the conventional air tank mounting structure as viewed from above. A conventional air tank mounting structure will be described with reference to FIG.
5, the engine 2 is mounted on the bus 101 so as to be assembled to the chassis frame 6 with a bolt (not shown) or the like at the rear center of the vehicle as shown in FIG.
A plurality of air tanks 103 are disposed on the side of the engine 2 by using surplus space, and the air tanks 103 are fixed to the chassis frame 6 and the like via bands 131 and 132. A pipe 134 is connected to the air tank 103 via a metal pipe (not shown), and the air stored in the air tank 103 is supplied through the pipe 134 to an air use location in the vehicle such as a braking device. It has become.
Further, a part of the body outer plate 12 at a position facing the air tank 103 is an opening, and an inspection lid 7 is attached to the periphery of the opening via a hinge 9 so as to be opened and closed.

  Maintenance and inspection items that the operator needs to move to the vicinity of the tank, such as tightening the connector connecting the air tank 103 and the pipe 134, repairing when air leaks, draining water from the tank, etc. However, as shown in FIG. 5, the air tank 103 is attached and the inspection lid 7 is emptied through the hinge 9, so that the operator can move to the vicinity of the air tank 103 and the air tank can be maintained. Become.

  In this way, a structure in which a plurality of air tanks are mounted in an engine room in which a vehicle traveling engine is mounted has already been put into practical use, and is disclosed in Patent Document 1, for example.

Japanese Utility Model Publication No. 3-51686

  However, as described above, the air tank has many maintenance and inspection items that the operator needs to move to the vicinity, and the degree of freedom of the air tank arrangement is low in order to secure the movement route to the vicinity of the air tank of the operator. There's a problem. For example, in the case of the bus 101 shown in FIG. 5, if an air tank is temporarily arranged in the area indicated by A, the operator cannot move to the vicinity of the air tank 103, so that the maintainability of the air tank 103 is significantly lowered. For this reason, not only the air tank but also other devices and parts cannot be arranged in the area indicated by A, and the area indicated by A becomes a dead space.

  In recent years, exhaust gas purification devices and the like are often added in an engine room in which an engine is mounted, and the space in the engine room has been reduced. The creation of a dead space is a serious problem in terms of vehicle layout. Further, when an air tank is provided in the area A in order not to provide a dead space, there is a problem that maintenance and inspection of the air tank 103 becomes difficult, and man-hours required for maintenance and inspection increase.

  Therefore, in view of the problems of the prior art, the present invention has an object to provide a fluid tank mounting structure that can effectively utilize a dead space that has conventionally occurred without increasing the number of steps during maintenance and inspection. .

In order to solve the above problems, in the present invention,
A mounting structure of a plurality of substantially cylindrical fluid tanks for storing fluid in an engine room on which a vehicle traveling engine is mounted, a fixed fluid tank fixed to a vehicle-side non-movable part in the engine room, and the engine An inspection lid that opens and closes through a hinge attached to the periphery of the opening, and is attached to the inner surface of the engine room of the inspection lid. And a movable fluid tank movable through the hinge.

As a result, when the inspection lid is opened and the fluid tank and other traveling equipment are maintained and inspected, the movable fluid tank moves from the engine room to the outside of the vehicle together with the inspection lid. The tank does not become an obstacle to the movement of the worker toward the inside of the vehicle, and maintenance and inspection of the fixed fluid tank, the movable fluid tank, and other traveling devices are facilitated.
In addition, since the movable fluid tank can be stored in the position where the conventional dead space is used during non-inspection and non-maintenance such as when the vehicle is running, the dead space can be effectively used.
Furthermore, since the fixed fluid tank and the movable fluid tank can be gathered at a close position, the piping path for supplying the stored air in the tank to each device in the vehicle is not complicated, and the fixed fluid tank and the movable fluid tank are further reduced. During inspection and maintenance, the operator's man-hours are reduced and the inspection and maintenance time is shortened.

Further, the fixed fluid tank and the movable fluid tank are arranged such that the axis of the tank is in the vehicle front-rear direction,
It is arranged in the vertical direction and outside in the vehicle width direction.

  By disposing the substantially cylindrical fluid tank in the longitudinal direction of the vehicle, the area occupied by the fluid tank is reduced in the vehicle width direction in the engine room. Therefore, since the movable fluid tank can be disposed at a position away from the engine, other traveling equipment can be disposed between the movable fluid tank and the engine, and radiation heat from the engine of the movable fluid tank can be prevented. Because the fluid tank can be laid out compactly, the air distribution in the engine room can be improved.

  In addition, the fixed fluid tank and the movable fluid tank are arranged so that the axial center of the tank is in the vehicle front-rear direction, is substantially horizontal and the vertical position is substantially the same as or below the upper surface of the frame on which the engine is mounted. It is characterized by being arranged.

  As a result, the frame acts as a shielding wall, and the fluid tank is located below the center of the engine, so that the air distribution in the engine room can be improved and the heating of the fluid tank is prevented and the engine is inspected and maintained. Sex can be secured.

  The inspection lid is composed of an outer panel and an inner panel joined to the inner side of the outer panel when the inspection lid is closed, and a recess for attaching the movable fluid tank is formed on the inner panel. It is characterized by.

  As a result, the shape rigidity at the position where the movable fluid tank is attached to the inspection lid is enhanced, and positioning and attachment of the position where the movable fluid tank is attached to the inspection lid are simplified.

  The metal connection pipe to the movable fluid tank is characterized in that the connection end with the flexible hose is fixed to the inner panel in the vicinity of the rotation center of the hinge.

Since the tank itself moves as the inspection lid opens and closes, it is necessary to interpose a flexible hose such as a rubber hose in order to connect the movable fluid tank to a pipe disposed in the vehicle.
A metal connection pipe is attached to the movable fluid tank, and the connection end of the connection pipe with the flexible hose is fixed to the inner panel in the vicinity of the rotation center of the hinge. While the force can be kept small, the rotation trajectory of the flexible hose can be reduced, and further space saving can be achieved.

  As described above, according to the present invention, it is possible to provide a fluid tank mounting structure that can effectively utilize a dead space that has conventionally occurred without increasing the number of man-hours during maintenance and inspection.

  Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, and the like of the components described in this embodiment are not intended to limit the scope of the present invention unless otherwise specified, but are merely illustrative examples. Not too much.

FIG. 1 is a configuration diagram of a rear portion of a bus representing an air tank mounting structure according to the first embodiment, and FIG. 2 is a side view of the rear portion of the bus when the inspection lid is closed representing the air tank mounting structure according to the first embodiment. FIG. 3 is a side view of the rear portion of the bus when the inspection lid is opened, showing the air tank mounting structure according to the first embodiment, and FIG. 4 is a configuration diagram of the hinge periphery in the first embodiment as viewed from above.
First, an air tank mounting structure according to the first embodiment will be described with reference to FIGS. 1, 2, and 3.

  As shown in FIG. 1, an engine 2 is mounted on the bus 1 so as to be assembled to the chassis frame 6 by a bolt (not shown) at the rear center of the vehicle and in the center of the vehicle width direction. An air dryer 4 that dries air supplied from an air compressor (not shown) driven by the engine 2 is disposed on the side portion 2.

  A plurality of fixed air tanks 3 are disposed on the side of the engine 2 opposite to the air dryer 4 by using surplus space. The fixed air tanks 3 are substantially cylindrical and have a shaft center in the front and rear of the vehicle. The band 31 is fixed to the chassis frame 6 along the direction. A metal pipe (not shown) and a pipe 34 are connected to the fixed air tank 3, and the compressed air discharged from the air compressor (not shown) is dried by the air dryer 4 and then into the fixed air tank 3 through the pipe 34. Stored. The stored compressed air is supplied to a place where air is used in a vehicle such as a braking device through a pipe 33.

Further, a part of the body outer plate 12 at a position facing the fixed air tank 3 is an opening, and an inspection lid 7 is attached to the periphery of the opening via a hinge 9 so as to be opened and closed.
The inspection lid 7 is provided with a plurality of recesses 52 having a circular cross section in the vehicle width direction and extending in the vehicle front-rear direction at a position substantially opposite to the fixed air tank 3 when the inspection lid 7 is closed. A substantially cylindrical movable air tank 5 is attached so as to be partially fitted, and the movable air tank 5 is fixed to the inspection lid 7 with a band 51. By providing the recess 52, the shape rigidity at the position where the movable fluid tank 5 is attached to the inspection lid 7 is increased, and the position and attachment of the movable fluid tank 5 to the inspection lid 7 are easy to position and attach. become.
By disposing the substantially cylindrical fluid tank in the longitudinal direction of the vehicle, the area occupied by the fluid tank is reduced in the vehicle width direction in the engine room.
By providing the movable fluid tank 5 in this manner, the movable fluid tank 5 can be disposed at a position away from the engine 2, so that other traveling equipment is provided between the movable fluid tank 5 and the engine 2. It is also possible to arrange, so that the radiant heat from the engine 2 of the movable fluid tank 5 can be prevented and the fluid tank can be laid out compactly, so that the air distribution in the engine room can be improved.

As shown in FIG. 2, the movable air tank 5 is disposed at a height position substantially the same as the chassis frame 6 on which the engine 2 is assembled, and is disposed at a position facing the movable air tank 5. The fixed air tank 3 provided is also disposed at substantially the same height as the chassis frame 6. The height positions of the movable air tank 7 and the fixed air tank 5 may be lower than the chassis frame 6.
As a result, the chassis frame 6 acts as a shielding wall, and the fixed fluid tank 3 and the movable fluid tank 5 are located below the center of the engine 2, so that the air distribution in the engine room can be improved and the fluid tank It is possible to prevent the engine from being heated and to ensure engine inspection and maintenance.

  A pipe 54 is connected to the movable air tank 5 via a metal pipe and a rubber hose described later. Compressed air discharged from an air compressor (not shown) is dried by the air dryer 4, stored in the movable air tank 5 through the pipe 54, and supplied to the air use location in the vehicle such as a braking device through the pipe 58. It has become.

Next, the mechanism around the hinge 9 according to the first embodiment will be described with reference to FIG.
As described above, the inspection lid 7 is mounted so as to be openable and closable via the hinge 9. The inspection lid 7 is provided with a recess 52 on the inner surface of the vehicle, and is movable so that a part of the inspection lid 7 is fitted. An air tank 5 is attached, and the movable air tank 5 is fixed to the inspection lid 7 with a band 51.
The recess 52 has a circular cross section in the vehicle width direction and a shape extending in the vehicle front-rear direction.
A metallic connection pipe 55 such as iron is attached to the distal end portion of the movable air tank 5 in the longitudinal direction so that the distal end portion opposite to the movable air tank 5 side is positioned in the vicinity of the hinge 9. A rubber hose 53 is attached to the tip of the side opposite to the movable air tank 5 side. Further, the tip of the connection pipe 55 opposite to the movable air tank 5 is fixed to the inspection lid 7 via a clamp 56 in the vicinity of the hinge 9. The movable air tank 5 moves as the inspection lid 7 opens and closes. In this way, a metal connection pipe 55 is attached to the movable air tank 5, and the connection is made near the rotation center of the hinge 9. By fixing the connection end of the pipe 55 with the rubber hose 53 to the inside of the inspection lid 7, the force applied to the connection pipe 55 due to the rotation of the inspection lid 7 can be suppressed, and the rotation trajectory of the rubber hose can be reduced. As a result, further space saving becomes possible.

The inspection and maintenance of the fixed air tank 5 and the movable air tank 7 attached as described above will be described.
The inspection lid 7 is closed as shown in FIGS. 1 and 2 during normal operation such as when the bus 1 is operating or when it is stopped. At this time, the fixed air tank 3 and the movable air tank 5 are arranged side by side in the vehicle width direction in the space on the side of the engine 2 on the left rear side of the vehicle, and the space on the side of the engine 2 can be used effectively.

  Further, at the time of inspection and maintenance of the fixed air tank 3, the movable air tank 5 or its peripheral devices and parts, the bus is stopped, the engine 2 is stopped, and the inspection lid 7 is opened via the hinge 9. At this time, as shown in FIGS. 1 and 3, the longitudinal directions of the fixed air tank 3 and the movable air tank 5 are substantially perpendicular to each other. As described above, when the inspection lid 7 is closed, the movable air tank 5 that is arranged in the vehicle width direction with the fixed air tank 3 moves to the outside of the bus 1 by opening the inspection lid 7, so that the inspection and maintenance are performed. An operator who performs the operation can perform inspection and maintenance by moving both the fixed air tank 3 and the working air tank 5 to the vicinity thereof, and can perform inspection and maintenance easily and in a short time.

  It can be used as a fluid tank mounting structure that can effectively utilize a dead space that has been generated in the past without increasing the number of steps during maintenance and inspection.

It is the block diagram which looked at the bus rear part showing the air tank attachment structure concerning Example 1 from upper direction. FIG. 3 is a side view of the rear portion of the bus when the inspection lid is closed, showing the air tank mounting structure according to the first embodiment. It is a side view of the rear part of a bus at the time of inspection lid opening showing the air tank attachment structure concerning Example 1. It is the block diagram which looked at the hinge periphery in Example 1 from upper direction. It is the block diagram which looked at the bus rear part showing the conventional air tank mounting structure from upper direction.

Explanation of symbols

1 Bus 2 Engine 3 Fixed Air Tank 5 Working Air Tank 6 Chassis Frame 7 Inspection Lid 9 Hinge 31 Band 51 Band 52 Recess 53 Rubber Hose 55 Connection Pipe 56 Clamp

Claims (5)

  In a mounting structure of a plurality of substantially cylindrical fluid tanks for storing fluid in an engine room on which a vehicle traveling engine is mounted, a fixed fluid tank fixed to a vehicle-side non-movable part in the engine room, and the engine An inspection lid that opens and closes through a hinge attached to the periphery of the opening, and is attached to the inner surface of the engine room of the inspection lid. A fluid tank mounting structure comprising: a movable fluid tank movable through the hinge. The fixed fluid tank and the movable fluid tank are arranged so that the axis of the tank is in the vehicle front-rear direction,
The fluid tank mounting structure according to claim 1, wherein the fluid tank mounting structure is arranged in the vertical direction and on the outer side in the vehicle width direction. The fixed fluid tank and the movable fluid tank are arranged so that the axis of the tank is in the vehicle front-rear direction,
2. The fluid tank mounting structure according to claim 1, wherein the fluid tank mounting structure is arranged in a substantially horizontal direction and a vertical position is substantially the same as or below a top surface of a frame on which the engine is mounted. The inspection lid is composed of an outer panel and an inner panel joined to the inner side of the outer panel when the inspection lid is closed,
The fluid tank mounting structure according to any one of claims 1 to 3, wherein a concave portion for mounting the movable fluid tank is formed on the inner panel.   The metal connection pipe to the movable fluid tank has a connection end with a flexible hose fixed to the inner panel in the vicinity of the rotation center of the hinge. The fluid tank mounting structure described.

Images