JP2002068010A - Attaching structure for attaching cab to body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide attaching structure for attaching a cab to a body in a vehicle for which an approach angle to a sloped site is required to be secured while securing a living space in the cab of a limited total height. SOLUTION: A base frame part 35b ranged to a front side of an upper stage part 35a of a stepped frame 35 is formed with step difference in a lower side lower by a prescribed height compared with the upper stage part 35a. A supporting frame 41 is fixed to the width-directional central part in a front end of the base frame 35b to be directed frontwards and upwards by a prescribed angle with respect to a horizontal direction. A joining stay 45 is arranged in a front end part of the supporting frame 41, and a front part stay 48 is arranged to be horizontal to a car width direction in an end part of the joining stay 45. The base frame part 35b, the supporting frame 41 and the joining frame 45 are engaged with a base frame part storing part 61 of the cabin 47, a supporting frame storing part 65 and a joining stay storing part 67 respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a driver's cab on a vehicle body, and particularly in a driver's cab having a limited overall height, it is necessary to secure a habitable space and secure an approach angle to a slope. The present invention relates to a structure for attaching a driver's cab to a vehicle body in a vehicle.

[0002]

2. Description of the Related Art An external view of a speed sprayer is shown in FIG. The speed sprayer 10 has a cabin 7 disposed at the front of the body. At the rear of the cabin 7 is mounted a chemical solution tank 21 for storing a chemical solution.
An engine (not shown) and a chemical supply pump (not shown) are provided in the engine room 23 at the rear.

[0003] A blower 25 is provided at the rear of the fuselage. The blower 25 is driven by an engine and takes in air from the rear of the fuselage. A plurality of nozzles 27 are circumferentially arranged behind the engine room 23 and between the blowers 25 to form a jet head. The chemical solution sucked by the chemical solution supply pump from the chemical solution tank 21 is discharged from the nozzle 27, blown by the wind of the blower 25, and sprayed radially on the machine body.

[0004] The speed sprayer 10 is used for controlling in an orchard, but it is necessary to lower the vehicle height so as not to be an obstacle when shelving or running between trees. On the other hand, it is necessary to secure an appropriate approach angle when traveling on uneven terrain or sloping terrain, or traveling on an ayumi board when the speed sprayer 10 is mounted on a truck. In consideration of such points, the applicant has previously applied for an invention relating to a frame structure for supporting a cabin (Japanese Patent Application No. 11-255017).

FIG. 7 shows a plan view of the frame structure according to the above application, FIG. 8 shows a side view thereof, and FIG. 9 shows a front view of the cabin when climbing an ayumi board.

[0006] In FIGS. 6 to 9, the bogie frame 1 is supported by front wheels 3 and rear wheels 4. The cabin frame 5 has a base end fixed to the front side of the bogie frame 1. The cabin frame 5 has the same shape as the groove 9 at the bottom of the cabin 7, is housed in the groove 9, and has a tip portion protruding forward of the cabin 7.

FIG. 10 shows a view of the inside of the cabin as viewed from above. FIG. 11 is a cross-sectional view taken along the line AA in FIG. The cabin section frame 5 is formed in a C shape whose width gradually increases toward the front, and the driver's seat 8 is disposed between the left and right grooves 9.

[0008]

However, in the above-described frame structure of the cabin frame 5, it is difficult to control the dimensions and the like due to the nature of its shape, which may increase manufacturing costs.

As shown in FIG. 11, a groove 9 of a cabin 7 for receiving the cabin frame 5 is
In order to secure a flat portion at the foot, the shape becomes thin and high. The cabin 7 is made of reinforced plastic (FRP), which not only makes it difficult to manufacture that part, but also makes it impossible to completely deaerate it by the hand lay-up method, which may cause cracks and cracks. is there.

Furthermore, since the groove 9 is located on the left and right sides of the driver's foot position 12, there is a possibility that the groove 9 will be an obstacle when the cabin 7 gets on and off.

SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional problem, and is directed to a vehicle in a driver's cab having a limited overall height, which needs to secure an entry angle to a slope while securing a living space. It is an object of the present invention to provide a structure for attaching a driver's cab to a vehicle body.

[0012]

SUMMARY OF THE INVENTION Therefore, the present invention (claim 1) relates to a structure for mounting a driver's cab (47) mounted on a front portion of a vehicle body to a vehicle body, wherein a front axle (37) is provided from a rear portion of the vehicle body. ) And a stepped frame (35) having a predetermined step formed downward from the front end of the trolley frame (31) forward of the front axle (37). ), A support frame (41) disposed forward from the center in the width direction of the front end of the stepped frame (35), and the support frame (41) and / or the stepped frame (35) fit. An operator cab (47) formed at the bottom with fitting recesses (61, 65, 67) to be fitted was configured.

The operator cab (47) may be a cabin or an open type without a roof structure. The stepped frame (35) has a predetermined step formed downward from the front end of the bogie frame (31) in front of the front axle (37). This step is formed by the bogie frame (3
It is desirable to make the structure drop at a substantially right angle to 1) in order to simplify the configuration, but it is also possible to provide a step while gently inclining in an S-shape or the like.

The support frame (41) is disposed forward from the center in the width direction of the front end of the stepped frame (35). At the bottom of the cab (47), fitting recesses (61, 65,
67) are provided, and the fitting recesses (61, 65, 6) are provided.
Since 7) passes through the center of the cab (47), it does not obstruct the driver's feet, and the getting on / off property is improved.

By providing the fitting recesses (61, 65, 67), the clearance of the bottom of the cab (47) from the ground can be secured while keeping the height of the cab (47) low.
Further, the rigidity of the operator cab (47) is improved by forming the fitting concave portions (61, 65, 67). It is desirable to mount a driver's seat in the driver's cab (47) in accordance with the position of the stepped frame (35).

As described above, the height of the driver's cab (47) can be kept low while securing the living space of the driver's cab (47).

Further, according to the present invention (claim 2), the support frame (41) is disposed forward of a center in the width direction of the front end of the stepped frame (35) and upward from the horizontal by a predetermined angle. It is characterized by.

The predetermined angle is an angle equal to or larger than the approach angle of the vehicle required when traveling on an ayumi board or a slope.
As described above, the approach angle of the vehicle to the slope can be ensured.

Further, the present invention (claim 3) is characterized in that a front stay (48) and / or a bumper is provided at a tip end of the support frame (41).

Although a bumper is attached to the front stay (48), the bumper may be fixed directly to the tip of the support frame (41) without going through the front stay (48).

Further, the present invention (claim 4) is characterized in that the lower part of the stepped frame (35) is formed in a square frame shape.

By forming the frame in a square shape, the structure is simplified and the manufacture becomes easy.

Further, in the present invention (claim 5), fixing means (49) for fixing the driver's cab (47) to the lower left and right and upper right and left of the stepped frame (35) are provided,
In the cab (47), a seat (70) is provided at a central position of the fixing means (49).

Fixing means (49) for fixing the cab (47) are provided at four positions on the front end left and right and the upper step left and right of the stepped frame (35), and the seat (70) is fixed to the fixing means (49). It is desirable to dispose it at the center position of (49) from the viewpoint of stability.

Further, the present invention (Claim 6) is directed to a cavity or the ground penetrating from the front end to the center in the width direction of the front end of the stepped frame (35) and / or to the support frame (41) from the rear to the front. A concave portion (43) opened toward the user is formed.

The formation of the cavity or the concave portion (43) can reduce the weight and improve the rigidity of the support frame (41).

Further, the present invention (claim 7) is characterized in that cables, pipes (57) and the like are laid in the cavity or the concave portion (43).

By laying cables, pipes (57) and the like in the cavities or recesses (43), effective use of space can be achieved. In addition, since the cables and the pipes (57) are concentrated at one place in the support frame (41), the assemblability is improved,
Maintenance work is also easy.

[0029]

Embodiments of the present invention will be described below. FIG. 1 is a perspective view of a front axle and its surroundings according to an embodiment of the present invention, FIG. 2 is a diagram of a frame structure, FIG. 3 is a diagram showing a state in which a cabin is mounted on a frame, and FIG. As shown in FIG. FIG.
9 are denoted by the same reference numerals, and description thereof will be omitted.

1 to 4, the lower part of the front end 31a of the bogie frame 31 is a differential gear case 33.
Is fixed at the top. Front end 3 of the bogie frame 31
An upper portion 35a of the stepped frame 35 is fixed to both side portions of 1a, and a base frame portion 35b connected in front of the upper portion 35a is formed to be lower than the upper portion 35a by a predetermined height.

Thus, the base frame portion 35b is positioned lower than the top of the differential gear case 33 in front of the front axle 37 while avoiding the front axle 37.

The base frame 35b is formed of a parallel frame, and the cross member 39 at the front end thereof is provided.
Are located substantially near the center of the cabin 47 in the width direction. In the center of the cross member 39 in the width direction,
Support frame 4 forward and at a predetermined angle above horizontal
1 is fixed. The support frame 41 is provided with a concave portion 43 facing the ground.

At the front end of the support frame 41, a U-shaped joining stay 45 is disposed, and at the end of the joining stay 45, a front stay 48 is disposed horizontally in the vehicle width direction. A bumper (not shown) is fixed to the front stay 48. The cabin holding member 45a is interposed between the U-shaped side portions of the joining stay 45,
The front bottom of 7 is held in contact.

Cabin fixing members 49a to 49d are arranged on both sides of the upper step 35a of the stepped frame 35 and both sides of the cross member 39, and elastic members 51a to 49d are respectively provided.
It is fastened to the bottom of the cabin 47 via 51d.

A guide bar 53 is fixed between the parallel frames of the base frame portion 35b, and a plurality of U-shaped grooves 55 are formed in the upper portion of the guide bar 53. on the other hand,
A guide bar 56 is also provided on the upper portion 35 a of the stepped frame 35, and a plurality of pipes 57 are passed through the guide bar 56.

The pipe 57 is supported by passing it through the groove 55 of the guide bar 53, and furthermore, the recess 43 of the support frame 41.
The inside of the cabin 4
7 is passed. The pipe 57 may be a pipe for hydraulic pressure, spray, medicine, or the like. An operation cable and the like are passed through the concave portion 43. Although not shown, an under cover for protecting the bottom is attached to the concave portion 43 of the support frame 41.

FIG. 5 shows the internal structure (seat) of the cabin 47. At the left and right front ends of the base frame portion accommodating portion 61 into which the base frame portion 35b is fitted, cabin fixing members 49 are provided.
c and a fastening portion 63d with the cabin fixing member 49d.

In front of the base frame housing 61, a support frame housing 65 into which the support frame 41 is fitted and a joining stay housing 67 into which the joining stay 45 is fitted at its front end are arranged. ing. One seat 70 is provided at a central position inside the cabin fixing members 49 a to 49 d of the base frame portion accommodating portion 61.

Next, the operation of the embodiment of the present invention will be described. Base frame section accommodation section 61, support frame accommodation section 6
5. The joining stay accommodating portion 67 is protruded toward the room at the bottom of the cabin 47, and has a shape as a strength member for increasing the rigidity of the cabin main body.

Base frame 35b, support frame 4
1. The joining stay 45 is composed of a base frame portion accommodating portion 61, a support frame accommodating portion 65, and a joining stay accommodating portion 67, respectively.
, The clearance between the cabin 47 and the ground surface can be sufficiently ensured.

The support frame 41 is disposed at a predetermined angle above the horizontal. The predetermined angle is at least 15 degrees with respect to the ground, and is preferably about 17 to 18 degrees. This makes it possible to secure an appropriate approach angle when traveling on an ayumi board or traveling on uneven terrain.

FIG. 5 shows the foot position 69 of the driver. As described above, since the protruding portion is provided only at the center of the bottom of the cabin 47, a flat portion at the foot of the driver is secured. Therefore, there is no convex shape at a position where it gets in the way when getting on and off, so that getting on and off is improved. Since the pipe 57 is passed through the inside of the support frame 41, cables, hydraulic pipes, and the like are concentrated in one place, and assemblability and maintainability are improved.

[0043]

As described above, according to the present invention, it is possible to secure a living space in the driver's cab (47) having a limited overall height and to secure an entry angle to the inclination of the vehicle.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a front upper part around a front axle according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating a frame configuration according to the embodiment of the present invention;

FIG. 3 is a diagram showing a state in which a cabin is mounted on a frame.

FIG. 4 is a sectional view of the cabin centered on the vehicle.

FIG. 5: Internal structure of cabin (seat)

FIG. 6 is an external view of a speed sprayer.

FIG. 7 is a plan view of a conventional frame structure.

FIG. 8 is a side view of the same.

FIG. 9 is a front view of the cabin when climbing the Ayumi board.

FIG. 10 is a view of the cabin as viewed from above.

11 is a sectional view taken along the line AA in FIG.

[Explanation of symbols]

 31 bogie frame 35 stepped frame 35a upper section 35b base frame section 37 front axle 39 cross member 41 support frame 43 concave section 45 joining stay 47 cabin 48 front stay 49a-49d cabin fixing member 57 piping 61 base frame section accommodation section 65 support Frame housing 67 Joint stay housing

Claims (7)

[Claims] An operator's cab (4) attached to a front part of a vehicle body.
7) The vehicle body mounting structure according to 7), wherein a bogie frame (31) is disposed from the rear of the vehicle body through an upper portion of the front axle (37), and the front axle ( 37) a stepped frame (35) in which a predetermined step is formed downward in front of;
The support frame (41) disposed forward from the center in the width direction of the front end of the stepped frame (35) is fitted to the support frame (41) and / or the stepped frame (35). An operator cab mounting structure to a vehicle body, comprising: an operator cab (47) in which fitting recesses (61, 65, 67) are formed at the bottom. 2. The support frame (41) according to claim 1, wherein the support frame (41) is disposed forward of a center in the width direction of the front end of the stepped frame (35) and at a predetermined angle above horizontal. Mounting structure to the body of the driver's cab. 3. The mounting structure for a driver's cab to a vehicle body according to claim 1, wherein a front stay (48) and / or a bumper is provided at a tip end of the support frame (41). . 4. A structure for mounting a driver's cab to a vehicle body according to claim 1, wherein the lower portion of the stepped frame (35) is formed in a rectangular frame shape. 5. A fixing means (49) for fixing the cab (47) to the lower left and right and the upper left and right of the stepped frame (35) is provided. 5. The structure according to claim 1, wherein the seat (70) is arranged at a central position of the fixing means (49). 6. A hollow (43) which is open toward the ground or a hollow penetrating from the rear to the front in the width direction center of the front end of the stepped frame (35) and / or the support frame (41). The structure for mounting a cab to a vehicle body according to claim 1, 2, 3, 4, or 5, wherein: 7. The structure for attaching a driver's cab to a vehicle body according to claim 6, wherein a cable, a pipe (57), and the like are laid in the cavity or the concave portion (43).