JPS5831737Y2 - Structure of vehicle guard frame - Google Patents

Description

[Detailed explanation of the invention] This invention consists of a safety frame or a guard frame for the cabin, etc., installed upright on the vehicle, and is devised to prevent rainwater from falling on the operator from the rain gutter attached to the frame. As is well known regarding structures, for example, in the case of vehicles such as agricultural tractors, safety frames and cabins are erected to protect against rain. Generally, the construction is such that rainwater is directed backwards.

However, although the rain gutter is constructed in this way, the rear end of the gutter itself is usually cut into open pieces, and the water is discharged directly to the rear through this. It is.

In this case, it is released with force backwards, and it is good to be thrown away, but if this momentum is carried, some of the rainwater flowing at the bottom will roll back, and this will often scatter towards the operator in front, which is very inconvenient. This led to serious consequences.

This invention was devised to solve the above problem, and its purpose is to provide a structure for a guard frame for a vehicle that allows rainwater to drain smoothly at all times without splashing onto the operator. Therefore, the feature is that a safety frame or a guard frame such as a cabin is installed upright on the aircraft, and a rain gutter is formed on the frame, and at the end of the rain gutter in the flow direction, there is a A conversion surface is erected, and a drop opening is opened at the center of the width direction near the front of the conversion surface at the bottom of the rain gutter. The point is that the sides are formed into a mountain shape that protrudes higher than the sides of both sides.

The specific examples shown in the drawings will be described below.

In the illustrated example, the vehicle is an agricultural tractor that travels in areas where there is a high risk of overturning, and a strong guard frame called a two-post safety frame is installed on the vehicle. Rear wheels 4 with fenders 3 are installed on both sides of the transmission case 2, and a seat 5 is installed exactly between the fenders 3.

The guard frame G is removably erected on both fenders 3, 3, and is formed into a T-shape when viewed from the side and a gate-shape when viewed from the back.

The structure of this frame G is roughly divided into a pillar side and a zenith side.

On the strut side, struts 7 with mounting plates 6 at their base ends are configured to face each other on the left and right, and the struts 7 themselves are formed into a rigid square tube shape, and the base ends are located just between the front and rear of the fender 3. It is erected so that it is slightly tilted forward.

In this way, between the upper ends of both branches 7, 7, a horizontal member 8 with a C-shaped cross section is connected.
It is integrally inherited.

Note that the base ends of the pillars 7 correspond to exactly both sides of the seat 5,
It may also be moved further forward or backward.

In this way, the zenith section is attached, and the structure of the zenith section itself is that the main frame is the top frame 13, which is integrally formed in a U-shape in plan with an open rear end, and is located slightly forward of the rear end of the frame 13. A top back frame 14 with an open front is connected to the middle of the frame to form one integral frame.

The top frame 13 has U-shaped side frames 15°15 on the left and right.
Each side frame 15 constitutes a gutter, and in order to install it, first weld an oak (16.16) inside the upper end of each support column 7, and then attach it to the inner wall of the side frame 15. It is attached by screwing a bolt 18 through a provided bolt hole 17, and in this case, the bolt hole 17 itself is provided in an extra number at the front and rear so that it can be adjusted to move forward and backward. A cap is fitted into the hole 17 which is not covered.

In this way, both side frames 15 and 15 are attached, and are connected exactly in the middle between the front and back, and the rear half is extended parallel to the rear in order to ensure a sufficient safety margin in the event of a fall.

On the other hand, the front frame 19 is similarly formed in the shape of a gutter, and both ends thereof are connected to the respective side frames 15, 15 so as to communicate with each other.

In this way, the first sheet receiving pieces 20.20 in the form of a strip are integrally protruded from the inner side of the upper end of the side frames 15, 15, and the first sheet receiving pieces 20. A chevron-shaped second sheet receiving piece 21 with its long side facing
They are arranged in rows at intervals in the front and back.

The canopy sheet 22 stretched through these first and second sheet receiving pieces 20.21 is high in the center and gradually lowered on both sides, as shown in FIG. It is set to face.

Here, on the front end side of the canopy sheet 22, a sheet-side hook portion 23 whose axis is oriented in the width direction is provided in a retractable manner as a single thread, and is formed so that it can be hung freely at multiple locations along its length by cutting the sheet 22. On the other hand, on the inner surface of the gutter of the front frame 19, curved L-shaped frame side hooking portions 25 equipped with diagonally downward hooking ports 24 are arranged in a protruding shape to correspond to the seat side hooking portions 23. The seat 22 can be easily removed by the portions 23 and 25, and the forward-slanted front portion of the seat 22 allows rainwater to easily flow in.

This sheet 22 is stretched backward as a whole through the hooked front end, and the rear end is hung down from the back of the top back frame 14 to a slightly lower position, so that the sheet 22 A long tightening band 26 is attached to the rear end, and a winding type tightening device 27 is provided in the back frame 14, which can change the tightening force appropriately by pulling the band 26. The sheet 22 is stretched and hung in a proper manner.

The hanging portion at the rear end of the seat 22 drains water very well, so that most of the rainwater is accurately discharged in a backward inclined manner, and there is no dripping of rainwater toward the operator side.

Along with this, the side frames 15.15 that extend rearward are
A direction conversion plate 28 is installed at the rear end, and the surface of the conversion plate 28 is made vertical so that the water flow opposes it at right angles, and a rectangular drop opening 29 is provided at the center of the bottom immediately in front of the direction conversion plate 28. There is.

The rear bottom of each side frame 15 has a chevron-shaped cross section that projects upward, and the drop opening 2 is connected to the conversion surface 28 on the bottom of each side frame 15.
9. The portion extending to the front side is formed into a mountain shape in which the center portion in the width direction protrudes higher than the both side portions.

Therefore, the rainwater that has flowed inside each side frame 15 is
At the front, the flow is separated into two flows flowing on both sides of the side frame 15, and this torrent flow is controlled by the conversion surface 28 and goes around to the widthwise center side of the side frame 15, and flows toward the widthwise center side of the side frame 15. It flows into the drop port 29 on the side from both sides.

Therefore, the rainwater falling from the drop opening 29 is rolled back on the side frame 15 opposite to the flow direction of the rainwater,
There is no risk of it scattering towards the operator.

This is due to the fact that the side frame 15, as shown in FIG. 6, is designed to simply discharge naturally to the rear, thereby preventing entrapment.

As described in detail above, the present invention has a direction conversion surface facing the flow direction erected at the end of the rain gutter in the flow direction, and a drop opening is provided at the center of the width direction near the front of the conversion surface at the bottom of the rain gutter. The area on the bottom of the rain gutter, from at least the conversion surface to the front of the drop opening, is formed into a mountain shape with the central part in the width direction protruding higher than the sides, so that rainwater flowing through the rain gutter can be In front of the drop opening, it is separated into two streams flowing on both sides of the rain gutter, and each of these streams is controlled by the conversion surface and flows around the center of the gutter in the width direction. It flows into the drop opening on the side from both sides.

Therefore, there is no risk that rainwater falling from the droplet will curl up on the side opposite to the flow direction of the rain gutter and scatter toward the operator.

[Brief Description of the Drawings] Figure 1 is a side view of a tractor with a safety frame showing an example of this invention, Figure 2 is an enlarged sectional view of the upper part of the frame,
Figure 3 is a plan view of Figure 2, Figure 4 is a sectional view taken along line ■■-■■ in Figure 3, Figure 5 is a sectional view taken along line v-v in Figure 2, and Figure 6 is a conventional rain gutter structure. It is a sectional view showing an example. 1... Airframe, 7... Support, 13...
...Top frame, 15...Side frame, 22...
... Canopy sheet, 28 ... Direction change plate (surface), 29 ... Drop opening, G ... Guard frame.

Claims (1)

[Scope of utility model registration request] In the case where a safety frame or a guard frame such as a cabin is installed upright on the aircraft body and a rain gutter is configured on the frame,
A direction conversion surface facing the flow direction is provided at the end of the rain gutter in the flow direction, and a drop opening is provided on the widthwise center side near the front of the conversion surface at the bottom of the rain gutter. A structure of a guard frame for a vehicle, characterized in that a portion extending from the conversion surface to the vicinity of the front of the drop opening is formed into a mountain shape in which the central portion in the width direction protrudes higher than the both side portions.