JP2001199247A - Engine detaching device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jack-up point for inserting a fork of a forklift in a vehicle such as a low-floor bus mounting an engine laterally on an engine supporting frame so as to facilitate detachment of the engine with the engine supporting frame from the vehicle in maintenance in a general garage. SOLUTION: A pair of lower part bodies 12, 22 allowing insertion of a fork 4a in a forklift 4 are fixed respectively on the lower faces of left and right end parts 2a, 3a, while beam-shaped bridge members 11, 21, in which joint parts 13, 14, 23, 24 serving as connecting points for engine supporting frames 2, 3 removable from a chassis frame 6 in a vehicle 5 are formed in left and right end parts 2a, 3a respectively, are arranged. In detachment of the engine 8, the bridge members 11, 21 are installed to the front and the back of the engine supporting frames 2, 3, and by means of the fork 4a, the engine can be supported with the engine supporting frame 2, 3 integrally so as to be removed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle engine attaching / detaching device, and more particularly to a vehicle having an engine supporting frame mounted on an engine supporting frame, such as a low floor bus having an engine mounted on the engine supporting frame. By providing a jack-up point for inserting a fork of a forklift by attaching a cross-shaped transfer member, it is possible to easily perform the work of attaching and detaching the engine from the vehicle together with the engine support frame at a general maintenance shop, The present invention relates to an engine attaching / detaching device for a vehicle.

[0002]

2. Description of the Related Art In a conventional box-shaped bus, an engine is installed vertically at the rear end so that the engine is housed with a raised floor and an inclined rear floor.
This makes it difficult for an elderly person and a disabled passenger to get on and off the vehicle, and for example, a passenger in a wheelchair cannot move freely in the vehicle.

Therefore, by mounting the engine horizontally, the rear floor is flattened and the whole floor is lowered,
Low-floor buses with improved getting on and off were developed. On the other hand, conventional high-floor buses equipped with a vertical engine can be serviced by removing the floor, so the engine can be largely exposed, but with a low-floor bus equipped with a horizontal engine, only the floor is needed. Since the engine is not very exposed even if it is removed, in order to maintain the maintainability of the engine,
I needed to take another approach.

[0004] It is possible to expose the engine by removing not only the floor but also the rear seat, but it is not practical to do so during maintenance. Therefore, two left and right engine support frames are detachably attached to the rear end of the bus chassis frame, and the engine is mounted on the engine support frame. When the engine is serviced, the engine support frame is connected to the chassis frame. (See, for example, Japanese Utility Model Laid-Open No. 59-13).
5231 and Jpn.

[0005] However, when a forklift is used instead of a jack at the time of engine removal, the engine can be relatively easily attached and detached even at a general maintenance shop. Since it is necessary to secure the departure angle by increasing the ground height toward the end, it is not preferable to provide a jack-up point on the engine support frame to form an unnecessary projection downward.

In order to secure the ground clearance and prevent interference with peripheral parts, the shape of the engine support frame must be complicated, and the shape and ground height of the two engine support frames on the left and right are the same. Not necessarily.

Therefore, the engine support frame cannot be provided with a jack point on which a fork of a forklift can be directly put, and some means is required to enable the engine to be attached / detached using the forklift. I was

[0008]

SUMMARY OF THE INVENTION The present invention has been made to eliminate the above-mentioned drawbacks of the prior art, and has as its object to insert a forklift fork into the lower surfaces of the left and right ends. A pair of lower bodies are fixed to each other, and beam-like connecting members are formed at right and left ends, respectively, of connecting portions serving as connecting points to an engine support frame detachable from a vehicle chassis frame, and provided at least. By configuring the pair of transfer members to be attached to the front and back of the engine support frame, if the transfer member is attached to the engine support frame only when the engine is attached or detached, the engine can be easily attached and detached using a forklift. This also makes it possible to maintain the engine of vehicles equipped with engines horizontally, especially for low-floor buses. In general garages it is to be able to easily perform.

Another object is to insert a fork of a forklift into a lower body of a transfer member attached to an engine support frame to support an engine-related weight, and then remove the engine support frame from the chassis frame to remove the engine from the engine. By configuring the support frame to be removed together, the engine can be safely and easily removed from the vehicle, and the lower body can be removed when the removed engine is lowered onto the floor of a maintenance shop. It is to improve the maintainability by allowing it to be placed as a foot as it is.

[0010] Still another object of the present invention is to provide the above-described configuration, in which the maintenance as much as possible without removing the engine from the engine support frame can be performed while the lower body is placed on a floor or the like as a foot. The task of re-installing the engine-related parts on the vehicle again is to insert the fork of the forklift into the lower body and lift it easily.

Another object of the present invention is to provide, in the above structure, a beam-like transfer member having coupling portions formed on upper sides of a pair of lower bodies, respectively, so as to be fitted to the engine support frame before and after the engine support frame. Attach the crossover members each having a joint formed in the shape, insert the right fork of the forklift into the two lower bodies on the right side, and insert the left fork into the two lower bodies on the left side, and weight the engine. Is configured to be supported at four points, so that the engine can be attached and detached in a stable state, and can be stably placed on the floor of a maintenance shop, etc. It is to improve maintainability.

[0012]

According to the present invention (claim 1), a pair of lower bodies into which forks of a forklift can be inserted are fixed to lower surfaces of left and right ends, respectively, and are attached to and detached from a chassis frame of a vehicle. A beam-like transfer member is formed on each of the left and right ends, which serves as a connection point to a possible engine support frame, and at least one pair of the transfer members is attached to the front and rear of the engine support frame to mount a fork of a forklift. After the engine supporting frame is inserted into the lower body to support the weight related to the engine, the engine supporting frame is detached from the chassis frame and the engine is removed together with the engine supporting frame.

According to a second aspect of the present invention, there is provided an engine support frame having a pair of lower bodies into which a fork of a forklift can be inserted, respectively fixed to the lower surfaces of the left and right ends, and being detachable from a chassis frame of a vehicle. A beam-shaped transfer member is formed by forming a connection portion serving as a connection point on the upper side of each of the pair of lower bodies, and the connection portions are formed in front and rear of the engine support frame in a shape adapted to the engine support frame. After attaching the handover members respectively, insert the right fork of the forklift into the two lower bodies on the right and insert the left fork into the two lower bodies on the left to support the engine-related weight at four points The engine support frame is detached from the chassis frame and the engine is removed together with the engine support frame. .

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments shown in the drawings. 1 to 3, a vehicle engine attaching / detaching device 1 according to the present invention includes crossover members 11 and 21 attached to the front and rear of engine support frames 2 and 3.

As shown in FIGS. 1, 3 to 9, a pair of lower members 12 into which the forks 4a of the forklift 4 can be inserted are fixed to the lower surfaces of the left and right ends 11a, respectively. A pair of connecting portions 13 and 14, which are connecting points to the engine supporting frames 2 and 3 detachable from the chassis frame 6, are formed above the pair of lower bodies 12, respectively. It is configured to be able to sufficiently support the weight related to the engine including the engine 8 and the engine support frames 2 and 3.

As shown in FIG. 1, the lower body 12 is a short square pipe having a square hole 12a large enough to receive the fork 4a of the forklift 4. It is fixed so that the direction is perpendicular to the longitudinal direction of the transfer member 11.

The connecting portion 13 is a portion to be connected to the right engine support frame 2, and as shown in FIGS. 1 and 4, the shape of the engine support frame 2 (inclined).
Each of the pair of iron materials is bent to fit the vertical part 1
3a and a flange 13b are formed.

The connecting portion 13 passes the vertical portion 13a to the
The flange 13b is fixed to the side surface 11b of the engine support frame 2 by, for example, welding. In addition, two round holes 13c for passing the mounting bolts 9 are formed in the flange 13b of each of the connecting portions 13 respectively.

The connecting portion 14 is a portion to be connected to the left engine support frame 3, and as shown in FIGS. 1, 5, 7 and 8, the shape of the engine support frame 3 (there is no inclination). A vertical portion 14a and a horizontal portion 14b are formed by bending an iron material into a U-shaped cross section so as to conform to the above.

The connecting portion 14 is configured such that the vertical portion 14a is
The horizontal portion 14b is fixed to the lower surface 3a of the engine support frame 3 by, for example, welding so that the horizontal portion 14 is sandwiched therebetween. At the center of the horizontal portion 14b of each connecting portion 14, a round hole 14c for passing the mounting bolt 9 is formed.

The connecting portion 14 is located directly above the lower body 12 on the left side. The connecting portion 14 is provided so that the mounting bolt 9 can be inserted into the round hole 14c of the connecting portion 14 from the lower body 12 side. In the center of the lower body 12, a circular hole 12b is provided.
Is formed on the center line of the round hole 12a.
1 also has a round hole 11c.

As shown in FIGS. 2, 3 to 9, the transfer member 21 has a pair of lower bodies 22 into which the forks 4a of the forklift 4 can be inserted fixed to the lower surfaces of the left and right ends 21a, respectively, and also supports the engine. A connecting portion 23, 24 serving as a connecting point to the frames 2, 3 is formed on the upper side of the pair of lower bodies 22, respectively. , 3
It is configured to be able to sufficiently support an engine-related weight consisting of:

As shown in FIG. 1, the lower body 22 has a short square pipe shape having a square hole 22a large enough to insert the fork 4a of the forklift 4, and the lower body 22 has a hole formed therein. The transfer member 21 is fixed so that the direction is perpendicular to the longitudinal direction of the transfer member 21.

The connecting portion 23 is a portion to be connected to the right engine support frame 2, and as shown in FIGS. 1 and 4, the shape of the engine support frame 2 (inclined).
Each of a pair of iron materials is bent so as to conform to
3a and a flange 23b are formed.

The connecting portion 23 is connected to the vertical member 23
One of the side surfaces 21b is fixed by, for example, welding, and the flange 23b is coupled to the lower surface 2a of the engine support frame 2. It should be noted that two round holes 23c are formed in the flanges 23b of the respective coupling portions 23 to allow the mounting bolts 9 to pass therethrough.

The connecting portion 24 is a portion to be connected to the left engine support frame 3 and, as shown in FIGS. 2, 5 and 8, is made of an iron material so as to conform to the side shape of the engine support frame 3. The vertical portion 24a and the horizontal portion 24b are formed by bending into an L shape, and a round hole 24c for passing the mounting bolt 9 is formed in the vertical portion 24a.

The connecting portion 24 is formed by connecting the horizontal portion 24b
1, is fixed to the upper surface 21c by, for example, welding.
The vertical portion 24a is connected to the left side surface 3f of the engine support frame 3.

Here, the vehicle 5 will be described with reference to FIG.
As shown in FIG. 8, the vehicle 5 is a box-shaped bus which overhangs further behind the wheels 10 and has the engine 8 mounted horizontally, and as shown in FIGS. The engine support frame 2 is mounted on the rear end 6b of the engine support frame 2 by, for example, four mounting bolts 32, respectively.

As shown in FIG. 8, the engine supporting frame 2 is formed by welding longitudinal members 2c and 2d to both ends of a horizontal member 2b parallel to the front-rear direction of the vehicle, for example.
Mount portions 2e for supporting and fixing the engine 8 are formed on the vertical members 2c and 2d, respectively. Vertical member 2c
On the right side surface 2f, four through holes 2g through which the mounting bolts 32 pass are formed.

The attachment state of the engine support frame 2 to the rear end 6a of the chassis frame 6 will be described in detail. As shown in FIGS. 8, 11 and 12, a bracket having a U-shaped cross section is provided on the left side of the rear end 6a. 16 is attached so as to be covered, and the bracket 16 has
Four nuts 39 are welded to the side facing the rear end 6a, and through holes (not shown) through which the mounting bolts 32 screwed to the nuts 39 pass are formed at the welding positions of the respective nuts 39. .

The engine support frame 2 is shown in FIGS.
As shown in FIG. 12 and FIG.
After the through holes 2g are aligned, the mounting bolts 32 are inserted from the left side and tightened to the nuts 39 to be fixed to the rear end 6a of the chassis frame 6.

The engine support frame 3 is provided with longitudinal members 3 at both ends of one horizontal member 3b which is parallel to the longitudinal direction of the vehicle 5.
c, 3d are welded, for example, and the vertical members 3c, 3d
A mount 3e for supporting and fixing the engine 6 is formed in each of the mounts 3d. On the left side surface 3f of the horizontal member 3b, a reinforcing plate 3g for reinforcing the connecting portion 24 of the transfer member 21 is fixed, and the mounting screw 9 is attached to the reinforcing plate 3g.
g to fix the coupling portion 24 to the engine support frame 3. Only the joint 24 is on the left side surface 3f
Is attached to the device due to the location of the attachment.

Four nuts 39 to which the mounting bolts 32 are screwed are welded to the inner surface 3h on the right side of the horizontal member 3b in a portion overlapping with the vertical member 3c. The vertical member 3c has a mounting bolt 32
Are formed in the through holes (not shown).

As shown in FIGS. 8 and 13, the rear end portion 6b
A bracket 31 having a U-shaped cross section formed with four through holes 31a through which mounting bolts 32 penetrate is formed is attached to the left side of the bracket 31. The vertical member 3c of the engine support frame 3 is fitted into the bracket 31 so as to be positioned. The engine support frame 3 is attached to the rear end portion 6b of the chassis frame 6 by inserting the mounting bolts 32 from the right side of the rear end portion 6b and penetrating the rear end portion 6b and the bracket 31 and tightening the nuts 39. Installed.

The engine support frame 2 has a slightly curved shape in order to avoid other parts (not shown).
The shape is different from the engine support frame 3. In order for the fork 4a of the forklift 4 to be able to be inserted into the lower bodies 12, 22, when the transfer members 11, 21 are attached to the engine support frames 2, 3, the height of the lower bodies 12, 22 is adjusted. Must be the same,
For this reason, as shown in FIG.
The shape and height of each of the 24 are changed so as to conform to the engine supporting frames 2 and 3.

As shown in FIG. 6, a single nut 33 for screwing the mounting bolt 9 for fixing the connecting portion 14 of the transfer member 11 is welded to the horizontal member 3b.
Further, as shown in FIG. 7, one nut 34 for screwing the connecting bolt 9 for fixing the connecting portion 24 of the transfer member 21 is welded.

Similarly, as shown in FIG. 6, four nuts 35 for screwing mounting bolts 9 for fixing the connecting portion 13 of the transfer member 11 are welded to the horizontal member 2b.
Further, as shown in FIG. 7, four nuts 36 for screwing the connecting bolts 9 for fixing the connecting portion 23 of the transfer member 21 are welded.

A partition wall 15 which is perpendicular to the front-rear direction of the vehicle 5 is mounted on brackets 30 and 31 mounted on the rear ends 6a and 6b of the chassis frame 6.
The front and rear of the chassis frame 6 are partitioned. A bumper-shaped engine protection member 38 is provided at the rear end of the engine support frames 2 and 3.
It is attached so as to straddle both sides.

The present invention is configured as described above,
Hereinafter, the operation will be described. First, the drive system (not shown) of the vehicle 5 and the engine 8 are separated, and electric wiring and the like (not shown) are also removed.

As shown in FIGS. 8 to 10, the engine 8
Is a box-shaped bus mounted horizontally on the engine support frames 2 and 3, and a transfer member 11 and a transfer of the vehicle engine attaching / detaching device 1 are provided on the front and rear sides of the engine support frames 2 and 3. The members 21 are mounted and tightened and fixed by the mounting bolts 9 respectively. At this time, the connecting portion 13 is fixed to the engine support frame 2 and the connecting portion 14 is fixed to the engine support frame 3 for the transfer member 11, and the connecting portion 23 is fixed to the engine support frame 2 and the connecting portion 24 for the transfer member 21. Are fixed to the engine support frame 3 respectively.

The flanges 13b, 23 of the coupling portions 13, 23
b is formed so as to follow the inclined shape of the lower surface 2a of the engine support frame 2, so that the transfer members 11 and
1 are mounted parallel and horizontally to each other. Since the left and right engine support frames 2 and 3 are strongly reinforced by the bridge members 11 and 21, even if the engine support frames 2 and 3 are removed from the chassis frame 6, the engine support frames 2 and 3 are attached to the engine 8 by the weight of the engine 8. No distortion occurs.

The connecting part 24 is connected to the other connecting parts 13, 14, 2
Unlike the engine support frame 3, the engine support frame 3 is coupled to the left side surface 3f, but is reinforced by the reinforcing plate 3g, so that sufficient strength is secured.

As shown in FIGS. 9 and 14, the forklift 4 is operated to operate two lower bodies on the right side, namely, the square hole 12 a of the lower body 12 on the right side of the transfer member 11 and the transfer member 2.
1, the right fork 4a is inserted into the square hole 22a of the right lower body 22 in the direction of the arrow A, and the two lower bodies on the left side, that is, the square holes 1 of the lower body 12 on the left side of the transfer member 11.
2a and the square hole 22 of the lower body 22 on the left side of the transfer member 21
Insert the left fork 4a in the direction of arrow A into a, and slightly raise the fork 4a to lightly support the lower bodies 12,22.

Then, as shown in FIG.
14 and the forklift 4 is retracted in the direction of arrow B as shown in FIG.
Since the engine 8 is removed together with the engine support frames 2 and 3 from above, the engine 8 can be maintained by carrying the engine 8 to an arbitrary place and lowering it on the floor surface 40. At this time,
Since a total of four lower bodies 12 and 22 can be placed on the ground or the floor surface as they are, maintainability is very good. When it is necessary to remove the engine 8 from the engine support frames 2 and 3, the engine 8 must be removed from the mounts 2e and 3e.
Will be removed.

After the maintenance is completed, when the engine 8 is removed from the engine support frames 2 and 3, the engine 8 is mounted on the mounts 2e and 3e again. The fork 4a of the forklift 4 is inserted into the lower bodies 12, 22 and lifted, transported to the vehicle 5, and mounted in the reverse order of removal.

After the attachment, the transfer members 11, 21
From the engine support frames 2 and 3. As described above, the transfer members 11 and 21 according to the vehicle engine attachment / detachment device 1 are provided.
Is always kept in the maintenance shop and used when needed, so there is no need to provide jack-up points on the engine support frames 2 and 3.
Further, since the engine 8 can be attached and detached by using the forklift 4, it is possible to easily carry out the attachment and detachment work even in a general maintenance shop.

[0047]

The present invention is directed to an engine support frame having a pair of lower bodies into which a fork of a forklift can be inserted and fixed to the lower surfaces of the left and right ends as described above, and being detachable from a chassis frame of a vehicle. A beam-shaped transfer member formed by forming a connection portion serving as a connection point on each of the left and right ends is provided, and at least a pair of the transfer members is configured to be attached to the front and rear of the engine support frame, so only when the engine is attached or detached. If the transfer member is attached to the engine support frame, there is an effect that the engine can be easily attached and detached using a forklift, and as a result, the maintenance of a vehicle in which the engine is mounted horizontally, particularly the engine of a low-floor type bus, can be performed. In addition, an excellent effect is obtained that it can be easily performed even in a general maintenance shop.

After the fork of the forklift is inserted into the lower part of the transfer member attached to the engine support frame to support the weight related to the engine, the engine support frame is removed from the chassis frame and the engine is removed together with the engine support frame. As a result, the engine can be safely and easily removed from the vehicle, and when the removed engine is dropped on the floor of a maintenance shop, the lower body can be left as a foot. Therefore, there is an effect that the maintainability can be improved.

Further, according to the above-mentioned structure, maintenance of the possible range without removing the engine from the engine support frame can be performed while the lower body is placed on a floor or the like with the foot as a foot, and the engine having been maintained is completed. It is very convenient to mount the relationship on the vehicle again simply by inserting and lifting the fork of the forklift into the lower body.

Further, in the above structure, a beam-shaped connecting member is formed on each of the upper portions of the pair of lower bodies, and the connecting portions are formed in front and rear portions of the engine supporting frame so as to fit in the engine supporting frame. Attach the formed crossover members, insert the right fork of the forklift into the two lower bodies on the right, and insert the left fork into the two lower bodies on the left to support the engine-related weight at four points. With this configuration, the engine can be attached and detached in a stable state, and the engine can be placed on the floor of a maintenance shop in a stable state. There is an effect that can be done.

[Brief description of the drawings]

FIG. 1 is a perspective view of a front transfer member in a vehicle engine attachment / detachment device.

FIG. 2 is a perspective view of a transfer member on a rear side in the vehicle engine attaching / detaching device.

FIG. 3 is a plan view of a vehicle engine attachment / detachment device attached to left and right engine support frames.

FIG. 4 is a view as viewed from an arrow IV in FIG. 3;

FIG. 5 is a view taken in the direction of arrow V in FIG. 3;

6 is a vertical sectional view taken along the line VI-VI in FIG. 3;

FIG. 7 is a vertical sectional view taken along the line VII-VII in FIG. 3;

FIG. 8 is an exploded perspective view of a chassis frame, left and right engine support frames, and a vehicle engine attaching / detaching device.

FIG. 9 is a perspective view showing a state in which the vehicle engine attaching / detaching device is attached to an engine supporting frame on which an engine is mounted, and a fork of a forklift is inserted into a lower body.

FIG. 10 is a left side view of the rear part of the vehicle.

FIG. 11 is a partially cutaway perspective view showing a state where the right engine support frame is attached to the chassis frame and a state where brackets and separators are attached to the chassis frame.

FIG. 12 is a partial longitudinal sectional view showing a state where the right engine support frame is attached to the chassis frame.

FIG. 13 is a partially exploded perspective view showing an attachment state of a left engine support frame to a chassis frame and an attachment state of a bracket and a separator to the chassis frame.

FIG. 14 is a partial longitudinal sectional side view showing a state in which an engine supporting frame on which an engine is mounted is removed from a chassis frame of a vehicle by a forklift forklift via a vehicle engine attaching / detaching device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 vehicle engine attaching / detaching device 2 engine support frame 3 engine support frame 4 forklift 4 a fork 5 vehicle 6 chassis frame 8 engine 11 transfer member 11 a end 12 lower body 13 coupling part 14 coupling part 21 transfer member 21 a end 22 lower body 23 Joint 24 Joint

Claims (2)

[Claims] 1. A pair of lower bodies into which forks of a forklift can be inserted are fixed to lower surfaces of left and right ends, respectively.
A beam-like connecting member is provided at each of the left and right ends, the connecting portion being a connecting point to an engine supporting frame detachable from a vehicle chassis frame. After the fork of the forklift is attached to the front and rear of the frame to insert the fork of the forklift into the lower body to support the weight related to the engine, the engine support frame is detached from the chassis frame, and the engine is removed together with the engine support frame. An engine mounting / removing device for a vehicle, comprising: 2. A pair of lower bodies into which forks of a forklift can be inserted are fixed to lower surfaces of left and right ends, respectively.
A beam-like transfer member is formed on the upper side of the pair of lower bodies, and a connection portion serving as a connection point to an engine support frame detachable from a vehicle chassis frame is provided,
Attach the crossover members each having the coupling portion formed in a shape adapted to the engine support frame before and after the engine support frame, and insert the fork on the right side of the forklift into the two lower bodies on the right side. And inserting the left fork into the two lower bodies on the left side to support the engine-related weight at four points, and then removing the engine support frame from the chassis frame to mount the engine on the engine support frame. A vehicle engine attachment / detachment device characterized in that the vehicle attachment / detachment unit is detached.