JPS6239934Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a safety frame for protecting an operator in the event of a fall in a work vehicle such as a tractor, and more particularly to the structure of the roof portion of the safety frame.

Conventionally, the safety frame of a work vehicle consists of four pillar frames standing upright from the machine body surrounding the driver's seat, the upper ends of these four pillar frames being connected by an upper frame, and a hood attached to these upper frames. was installed and configured. For this reason, it is necessary to connect and fix a large number of heavy upper frames, which serve as strength support members when the tractor falls over, to the upper end of the support frame, and to attach a canopy to these frames, which makes it very troublesome to assemble the safety frame, and requires a large number of heavy upper frames to be assembled. This requires several bolts, which detracts from the appearance.Furthermore, the thick upper frame is located on the ceiling, making the operator feel oppressed from above.

Therefore, in the present invention, a support frame is erected on the aircraft so as to surround the driver's seat, and at the upper end of the support frame, a large number of beams made of steel plates are embedded integrally with synthetic resin so as to cover the area above the driver's seat. A roof composed of the above is provided, and a part of the beam protrudes downward from the synthetic resin, and the protruding part is fixed to the upper end of the column frame, so that the roof also serves as a reinforcing member for each column frame, and as described above. The object of the present invention is to provide a safety frame for a work vehicle that eliminates the drawbacks.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the tractor 1 has a body 3 supported by wheels 2, and a driver's seat 6 consisting of a seat 5 and the like is arranged at the rear of the body 3. Then, surrounding the driver's seat 6, there are 4
Book support frames 7a, 7b, 7c, and 7d are erected on the body 3, and bolts 9 are provided at the upper ends of these support frames, respectively, as shown in FIG.

Further, a roof 10 is fixed to the upper ends of these support frames 7a to 7d to constitute a safety frame S. As shown in FIGS. 3 to 5, the roof 10 includes a synthetic resin part 11 and a large number of beams. 12a,
It consists of 12b, 12c, 12d, 12e, and 12f. The synthetic resin part 11 is integrally molded by embedding a large number of beams 12a to 12f, and has a ceiling part 11a that covers the upper part of the driver's seat 6, and eave parts 11b that hang diagonally downward on four sides. Moreover, the beams 12a to 12f are made of steel plates, and are fixed as a whole in a box shape.
Both ends of the front beam 12a and the rear beam 12b are bent into a U-shape, and the bent portion A is located at the synthetic resin portion 11.
The holes formed in the protruding portion A protrude from the bolts 9 of the support frames 7a to 7d.
It is inserted into and fixed with nuts 13.

Since this embodiment has the above-described configuration, after the support frames 7a to 7d are erected on the fuselage 3, the bent portion A of the front beam 12a and the rear beam 12b of the roof 10 is
By inserting the bolts 9 into the bolts 9 and tightening the nuts 13, the roof 10 is attached to the upper ends of the support frames 7a to 7d. As a result, the roof 10 covers the area above the driver's seat 6 and protects the operator from rain and direct sunlight, and the numerous beams 12a to 12f embedded in the roof 10 work together with the support frames 7a to 7b to form a safety frame. S to protect the operator in the event of a tractor overturn.

As explained above, according to the present invention, the roof 10 is made of the synthetic resin 11 in which a large number of beams 12a to 12f made of steel plates are integrally embedded, so that the roof 10 serves both as an upper frame and a canopy. There is no need to assemble the upper frame and the top separately, making it easier to assemble the safety frame 11, requiring fewer bolts during assembly, without damaging the appearance, and since there is no exposed upper frame, the operator can easily assemble the safety frame 11. You can drive comfortably without feeling pressured from above. Also, beam 1
A part of 2... protrudes downward from the synthetic resin, and the protruding part A is fixed to the upper end of the pillar frame 7... to form the roof 1.
0 was also used as a reinforcing member for each support frame, so
This provides a strong safety frame S that protects the operator when the tractor falls, improving safety.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a tractor to which the present invention is applied, Fig. 2 is an exploded perspective view showing the roof portion of its safety frame, Fig. 3 is a plan view of the roof, and Fig. 4 is taken along the line shown in Fig. 3. The sectional view, FIG. 5, is a sectional view taken along the line of FIG. 3. 1... Work vehicle, 3... Airframe, 6... Driver's seat,
7a-7d... Support frame, 9... Bolt, 1
0...Roof, 11...Synthetic resin (part), 12a
~12f...Beam, S...Safety frame, A...Protrusion.

Claims (1)

[Scope of utility model registration request] In a work vehicle with a driver's seat located in the fuselage, a support frame is erected on the machine to surround the driver's seat, and a number of beams made of steel plates are integrally attached to the upper ends of these support frames to cover the area above the driver's seat. A roof made of embedded synthetic resin is provided, and a part of the beam projects downward from the synthetic resin, and the projecting part is fixed to the upper end of the support column frame to make the roof a reinforcing member of each support frame. A safety frame for dual-purpose work vehicles.