JPS63498Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention provides fixed rails on both left and right sides that sandwich a tool box fixed to the fuselage side, and a pair of left and right movable rails that can adjust the front and rear positions along the fixed rails. This invention relates to a driver's seat support structure for a work vehicle in which a driver's seat is connected to the driver's seat, which is located higher than the driver's seat.

The driver's seat support structure mentioned earlier installs a tool box by effectively utilizing the space surrounded by the underside of the driver's seat, a pair of left and right movable rails connected to the driver's seat, and a pair of left and right fixed rails. However, according to the conventional support structure, since the pair of left and right movable rails were not integrally connected, there was a problem that the left and right movable rails were relatively easy to fall and deform to the left and right.

That is, if the left and right movable rails are connected via a connecting member, it is necessary to configure the connecting member to move as the movable rails move, making it impossible to install a tool box between the fixed rails.

The present invention was developed in view of the above-mentioned actual situation, and by simple structural improvements, the left and right movable rails are integrally connected regardless of whether a tool box is installed, thereby increasing the mounting strength of the movable rails. In addition, it is an object of the present invention to effectively utilize the structure for this purpose to regulate the range of movement of the driver's seat back and forth to a desired range of movement.

The characteristic structure of the present invention for achieving the above object is that in the driver's seat support structure of the work vehicle mentioned above,
The pair of left and right movable rails are integrally connected to each other via a connecting member, and a regulating member is provided in the aircraft body, which abuts on the connecting member at an end of the longitudinal movement range of the driver's seat to regulate the longitudinal movement range of the driver's seat. The tool box is connected and supported by the upper end of the regulating member in a detour above the connecting member, and this configuration provides the following effects.

That is, a pair of left and right movable rails are integrally connected via a connecting member to improve the mounting strength of the movable rails, but a regulating member is provided to restrict the movement range of the connecting member, so that the movable rails are connected to the fixed frame. In order to prevent accidental detachment from the tool box and to prevent the tool box installed between the fixed rails from interfering with the movement of the connecting member, the tool box is connected and supported by the regulating member by bypassing the upper part of the connecting member. .

In other words, in order to avoid interfering with the movement of the connecting member that integrally connects the left and right movable rails, the tool box is supported in a detour above the connecting member, and the tool box supporting member is also moved away from the fixed rail of the movable rail. It is also used as a regulating member to prevent it from coming off.

Therefore, although the tool box is installed between the fixed rails to make effective use of space, the left and right movable rails are not connected together by bypassing the top of the tool box, but the connecting member is connected to the tool box. Since it is connected by being positioned on the lower side, bending moments are less likely to occur in the connecting members, effectively increasing the mounting strength of the movable rail, and eliminating the risk of the movable rail accidentally coming off from the fixed rail. It came to this.

Next, embodiments of the present invention will be described in detail based on the drawings.

As shown in FIG. 1, a front engine 1, a clutch housing 2, and a rear transmission case 3 are connected to form a machine frame along the longitudinal direction of the aircraft.
The transmission case 3 supports left and right front wheels 4, 4, which can be operated to change direction and rotate to drive, at the lower part of the transmission case 3.
The left and right rear wheels 5, 5, which can be driven and rotated, are supported on both lateral sides of the driver's seat 7.
Furthermore, the PTO shaft 8 is supported on the rear wall of the transmission case 3 in a rearwardly protruding state, and various devices such as a tilling device connected to the rear of the fuselage are connected to the rear wall of the transmission case 3.
It is configured to perform work as it advances while being driven by the output of the PTO shaft 8.

As shown in FIGS. 2 to 4, a pair of front and rear horizontal frame bodies 9a and 9b are bolted to the upper part of the transmission case 3, and the tool box 6 is attached to the both horizontal frame bodies 9.
Both ends of the tool box a and 9b are bolted to a pair of front and rear tool box support frames 10a and 10b, which are welded to each other.

Further, a pair of left and right U-shaped fixed rails 11a, 11b are welded across both lateral ends of both horizontal frames 9a, 9b, respectively, when viewed in the longitudinal direction of the aircraft, and these fixed rails 11a, 11b are A pair of left and right movable rails 12 each having an inverted U shape when viewed from the front and rear directions of the aircraft.
a, 12b are engaged so as to be movable back and forth with coil springs 13 and steel balls 14 interposed therebetween, and a pair of left and right horizontal shafts 13 are supported on the front end of the driver's seat 7.
a, 13b, both movable rails 12a, 12b
A pair of left and right cushions 15a, which are rotatably supported around axes X and X with respect to cylindrical bodies 14a and 14b fixed to the front end portions of the driver's seat 7, respectively, and which receive the rear end sides of the driver's seat 7; 15b on both sides of the tool box 6 with respect to a reinforcing frame 16 as an example of a connecting member that connects the front and rear intermediate portions of both the movable rails 12a and 12b in a detour around the bottom of the tool box 6. It is mounted on the side.

Furthermore, both the tool box support frames 10a, 10
b is configured to double as a regulating member that receives the reinforcing frame 16 and regulates the range of longitudinal movement of the movable rails 12a, 12b, and is swingable around the longitudinal axis Y on the left movable rail 12a. and the locking tool 17 attached with elastic bias toward the lower side.
are configured to be able to engage and disengage from notches 18 formed in the left fixed rail 11a at appropriate intervals in the longitudinal direction.

In short, the movable rails 12a, 12b are
The structure is such that the front and back position of the driver's seat 7 can be changed and adjusted by adjusting the position back and forth with respect to the fixed rails 11a and 11b while engaging and disengaging the locking tool 17. driver seat 7
The tool box 6 can be exposed by swinging forward about the horizontal axis X at its front end, and the driver's seat 7
By receiving the rear end edges with cushions 15a and 15b, a good cushion is provided.

To construct the tool box 6, the container 6a and the lid 6b are integrally formed of synthetic resin in a state where the lid 6b is connected to be able to swing open and close around the longitudinal axis Z.

In configuring the cushions 15a and 15b,
A cylindrical body 19 is fixed to a vertical shaft 22 supported so as to be vertically slidable with respect to the reinforcing frame 16, and this cylindrical body 1
A buffer rubber 20 is fixed to the upper end of the cylinder 9, and a coil spring 21 is provided to press and bias the cylindrical body 19 upward.

In the embodiment, a pair of left and right movable rails 12
A and 12b are connected by the reinforcing frame 16 as an example, but other forms may be used.

Further, the present invention can be applied not only to agricultural tractors but also to working vehicles such as reapers and earthmoving machines.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of drawings]

The drawings show an embodiment of the driver's seat support structure for a working vehicle according to the present invention, and FIG. 1 is a side view of an agricultural tractor;
Figure 2 is a partially cutaway side view of the driver's seat mounting section;
The figure is a cross-sectional view taken along the line -- in FIG. 2, and FIG. 4 is a partially cutaway front view of the driver's seat mounting portion. 6... Tool box, 7... Driver's seat, 10a, 10b
...Restriction member, 11a, 11b...Fixed rail,
12a, 12b...Movable rail, 16...Connecting member.

Claims (1)

[Scope of utility model registration request] Fixed rails 11a and 11b are provided on both the left and right sides of the tool box 6 fixed to the body side, and the tool box 6 is mounted on a pair of left and right movable rails 12a and 12b whose positions can be adjusted back and forth along the fixed rails 11a and 11b. In a driver's seat support structure for a work vehicle in which a driver's seat 7 is arranged in series, the pair of left and right movable rails 12a, 12b are integrally connected via a connecting member 16, and the driver's seat 7 is connected to the driver's seat 7. A regulating member 1 that contacts the connecting member 16 at an end of the longitudinal movement range of the driver's seat 7 to regulate the longitudinal movement range of the driver's seat 7.
0a and 10b are fixedly installed on the fuselage side, and this regulating member 1
A driver's seat support structure for a working vehicle, characterized in that the tool box 6 is connected and supported at the upper ends of 0a and 10b in a detour above the connecting member 16.