JPH03189231A - Rain guard of tractor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a rain guard device for a tractor.

(Prior Art) As a tractor ROPs (fall protection device), there is a four-post safety frame having a box-shaped cabin (safety cab) and a roof (see pages 303 to 304 of the new edition of the Agricultural Machinery Handbook).

(Problems to be Solved by the Invention) Conventional safety cabs are luxury-oriented, and provide perfect rain protection for the driver of the control device.

On the other hand, the four-post safety frame with a roof is not as high-class as the safety cab, but is more common.
There is a growing need to attach a windshield to the front side of a pillar-type safety frame to provide a rain guard function.

However, in order to attach a windshield to a four-post safety frame that has passed the national inspection, if mounting holes are formed in the pillars, etc., it is necessary to pass the inspection again. It was harsh on the manufacturers.

In addition to the circumstances mentioned above, from a technical perspective, since tractors are large and subject to complex vibrations such as running vibrations and engine vibrations, the safety frame of this tractor is equipped with a windshield made of brittle material. It is very difficult to install the device, and if the device is not installed properly, there will be problems such as the windshield breaking due to the vibrations mentioned above.

The present invention enables a windshield to be mounted in a vibration-proof manner without performing post-processing on the pillars of a four-post safety frame having a roof, thereby preventing breakage, and furthermore, the pillars of the safety frame can be used as handrails when getting on and off a tractor. To provide a rain guard device for a tractor equipped with a windshield so that it can be used as a vehicle.

(Means for Solving the Problem) The technical means is to provide an operating device for controlling the operating device 7 on the front side of a four-post safety frame 8 having a roof 9 surrounding the operating device 7. This is a rain guard device for a tractor equipped with a transparent windshield 14 that blocks rainwater etc. from blowing into a person, and includes a safety frame 8.
An elastic bracket made of an elastic material such as rubber and having a screw shaft 19 protruding forward is attached to the front side of a U-shaped bracket 24 made of a plurality of spring materials that is fitted into the left and right front struts 11 by elastic deformation. Attach the mounting body 18 and attach the windshield 1.
By inserting the screw shaft 19 into the mounting hole 15c formed in 4 and screwing the nut 28 onto the screw shaft 19, the windshield 14 is mounted on the front side of the safety frame 8 so that the driver's fingers can fit into it. The point is that it is installed with a gap 29 left in between.

(Function) According to the present invention, the windshield 14 attached to the front side of the front part of the safety frame 8 is attached to the safety frame 8 in a vibration-proof manner by the elastic attachment body 18 made of an elastic material. To prevent a windshield 14 from breaking due to engine vibration, running vibration, etc. of a tractor 1.

In addition, the windshield 14 is attached to the front side of the safety frame 8 with a gap 29 that is large enough for the driver's fingers to fit in, so the pillar 11 of the safety frame 8 can be used as a handrail when getting on and off the vehicle. There is no problem.

Furthermore, the windshield 14 is mounted using a bracket 24.
is formed in a U-shape made of spring wood, and the front support 11
It is only necessary to fit the front strut 11 against the elastic force, and it is easy to attach the front strut 11, and it is also possible to move it along the longitudinal direction of the front strut 11, making it easy to align the windshield 14 when it is attached.

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

In FIGS. 1 and 2, reference numeral 1 denotes a tractor, which has two axles and four wheels and has front wheels 2 and rear wheels 3.

Reference numeral 4 denotes a tractor bonnet that covers the engine, and a control handle 5 is provided at the rear of the bonnet 4. A driver's seat 6 is provided between the rear wheel fenders 3A, and a control device 7 is provided here.

Reference numeral 8 denotes a four-post safety frame having a roof 9, which includes left and right front columns 11 erected on the left and right steps 10, left and right rear columns 12 erected above the rear wheel fenders, and each column 11.
The four-post safety frame 8 is a four-poster safety frame 8 that has passed inspection, and each pillar 11 and 12 made of steel pipes or the like is erected surrounding the control device 7. ing.

Reference numeral 14 denotes a windshield, which is attached to the front side of the front part of the safety frame 8 and blocks rainwater, wind and rain, etc. from blowing in from the front to the driver of the control device 7, and is made of a transparent reinforced glass. It is made of transparent plate material such as glass.

As shown in FIG. 1, the windshield 14 includes a first windshield 15 which has a substantially trapezoidal shape in front and rear views, and is located on both sides of the lower side of the first windshield 15, and has steps on both left and right sides of the tractor bonnet 4. The lower side of the first windshield 15 has a bar material 17 as a reinforcing frame such as a steel plate extending near the top surface of the tractor bonnet 4. We are prepared.

In FIGS. 4, 5, and 11, reference numeral 18 denotes an elastic mounting body made of an elastic material such as rubber, which has a tsuzumi-shape in the middle and has two discontinuous screw shafts 19 in the front and rear. have.

This elastic attachment body 18 is attached to each of the longitudinally intermediate portions of the front roof frame 13A of the safety frame 8, the upper and lower portions of the left and right front columns 11, and the longitudinally intermediate portions of the left and right front columns 11 near the top surface of the tractor bonnet 4. installed in position.

As shown in FIGS. 1, 11, and 12, the front roof frame 13
In A, a side view-type wiper holder 20 is attached to the roof 9 with bolts 21, and one screw shaft 1 is inserted into a pair of holes 22 in the vertical surface of the wiper holder 20.
9 and screwing in the nut 23, the other screw shaft 19 is made to project forward and the elastic mounting body 18 is attached.

As shown in FIGS. 1, 2, 4, and 5, springs having elastic fitting portions 24A are installed at the upper and lower portions of the left and right front struts 11 in the safety frame 8, as well as at the intermediate portion thereof. A U-shaped bracket 24 made of a spring material such as steel is fitted as shown by arrow A in FIG.
Insert one screw shaft 19 into the hole 241) and tighten the nut 2.
3, the other screw shaft 19 is made to project forward and the elastic mounting body 18 is attached.

The bracket 24 in FIGS. 4 and 5 has an elastic fitting portion 24.
A has a curved portion 24C, and is fitted by the elastic force of this curved portion 24C, and both are fitted from the outside of the front strut 11, where the bracket 24 is in the fitted state. The support column 11 is slidable in the longitudinal direction, thereby making it possible to adjust the position of the elastic mounting body 18.
It is installed without post-processing such as mounting holes.

A mounting hole 15C is formed in the first windshield 15 in correspondence with the mounting position of the elastic mounting body, and a flanged tube collar 25 made of an elastic material such as rubber is fitted into this mounting hole 15C. , is installed by inserting the other screw shaft load 9 into this cylindrical collar 25, setting the rubber seat ring 26 and washer 27 on the screw shaft 19, and screwing in the cap nut 28.
Here, the first windshield 15 is mounted so that its plate surface is substantially parallel to the vertical surface of the support column 11 in the safety frame 8, with a gap 29 large enough for the driver's fingers to enter.

That is, the first windshield 15 is suspended by a pair of elastic mounting bodies 18 at its upper central portion, and is attached to the safety frame in a state in which horizontal shaking is prevented by the elastic mounting bodies 18 at the upper, lower, and intermediate portions. It is attached to the front side of the front part of No. 8 with a gap 29 therebetween.

The elastic mounting body 18 at the intermediate position between the upper and lower parts of the safety frame 8 is an elastic band between the vertical surface 17B of the bar member 17 having a horizontal surface 17A and an vertical surface 17B and the glass surface. The bar material 17 is attached with a plate seal 30 interposed therebetween, and the bar material 17 has not only a reinforcing effect but also a function as a rain gutter. For this reason, the bar material 17 has a rising surface 17A on the horizontal surface 17A of the bar material 17, as shown in FIGS. 7 and 8.
7C can also be formed.

The horizontal surface 17A of the bar material 17 presses against the upper surface 318 of the elastic seal joint material 31 attached to the upper surface and both side surfaces of the tractor bonnet 4, and good sealing performance is obtained. 31B, second windshield 1
The inner side edges of the bonnet 4 are pressed against each other to prevent direct contact between the windshield 14 and the bonnet 4, resulting in a good appearance.

The lower side of the first windshield 15 is attached to the bar member 17 by a pair of fastening means 32 at its longitudinally intermediate portion.
It is installed as shown in Figures 8 and 8.

That is, as shown in FIG. 7, a flanged tube collar 3 made of an elastic material is inserted into a hole 15B formed in the first windshield 15.
3 is fitted, a bolt 34 is inserted through this collar 33, and the glass 15 and the vertical portion 17B are fastened together with a washer 35 and a cap nut 36 with a strip seal 3° interposed therebetween.

A side view type bracket 37 is fixed to the bar material 17 on its horizontal surface 17A with an interval in the longitudinal direction of the bar, and the second windshield 16
The upper part of the bar member 17 is attached to the bar material 17 in a hanging manner.

That is, as shown in FIG. 8, a flanged tube collar 3 made of an elastic material is inserted into a hole 16A formed in the second windshield 16.
8, the bolt 39 is inserted into the collar 38, and the bolt 39 is fastened with the washer 40 and the cap nut 41, so that the bolt 39, nut 41, etc.
2.

The flanged tube collars 25, 33, and 38 mentioned above may have flanges integrally at both ends, or have flanges only at one end as shown in FIG. 10, or have flanges only at one end as shown in FIG. It may also be a combination of the following.

The first windshield 15 is equipped with a wiper device 43,
As shown in FIG. 12, the wiper device 43 includes a wiper motor 44 and a fastener 46A on a drive shaft 45 of the motor 44.
The wiper motor 44 has a connecting plate 48 attached to the vertical surface of the wiper holder 20 with a bolt 47, and a wiper switch 49 collinear with a bolt 51. The wiper holter 20 is supported by a plate 50, and the wiper holter 20 is also used for mounting bolts 21 of the roof 9, for mounting the wiper motor 44, etc., and for mounting the first windshield 15. In addition, in FIG. 12, 15^ is a drive shaft insertion hole.

(Effects of the Invention) The present invention is as described above, and the windshield 14 attached to the front side of the front part of the safety frame 8 is attached to the safety frame 8 by an elastic mounting body 18 made of an elastic material. Therefore, breakage of the windshield 14 due to engine vibrations and running vibrations of the tractor 1 can be effectively prevented.

In addition, the windshield 14 is attached to the front side of the safety frame 8 with a gap 29 that is large enough for the driver's fingers to fit in, so the pillars 11 of the safety frame 8 can be used as handrails, etc., making it convenient for getting on and off the vehicle. .

Furthermore, the windshield 14 is mounted using a bracket 24.
is formed in a U-shape made of spring material, and the front support 11
It is only necessary to fit the front strut 11 against the elastic force, and it is easy to attach the front strut 11, and it is also possible to move it along the longitudinal direction of the front strut 11, making it easy to align the windshield 14 when it is attached.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a front (front) view, Fig. 2 is a side view, Fig. 3 is an enlarged front view of main parts, and Fig. 4 is a cross-sectional view taken along line B-B in Fig. 3. , FIG. 5 is an enlarged sectional view taken along the line C-C in FIG. 1, FIG. 6 is an enlarged side view of the main part of FIG. 2, and FIG.
Figure 8 is a sectional view taken along line DD in Figure 3, Figures 9 and 10 are sectional views showing other two examples of Figure 8, and Figure 11 is shown in Figure 1 A-- A enlarged sectional view and FIG. 12 are exploded perspective views showing the installed state of the wiper device. DESCRIPTION OF SYMBOLS 1... Tractor, 7... Control device, 8... Safety frame, 9... Roof, 11... Front support, 14...
...Windshield, 18...Elastic attachment body, 19...
・Screw shaft, 24...bracket, 28...cap nut, 29...gap.

Claims (1)

[Claims] (1) A roof (9) built around the control device (7)
) A tractor is equipped with a transparent windshield (14) on the front side of a four-post safety frame (8) that blocks rainwater etc. from blowing into the driver of the control device (7). In this rain guard device, a U-shaped bracket (24) made of a plurality of spring members is attached to the left and right front struts (11) of the safety frame (8) in a fitted manner by elastic deformation, and on the front side thereof, Front protruding screw shaft (19)
The screw shaft (19) is inserted into the mounting hole (15c) formed in the windshield (14), and the screw shaft (19) By screwing the nut (28) into the front part of the safety frame (8), attach the windshield (14) to the front side of the front part of the safety frame (8).
) is attached with a gap (29) large enough for a driver's fingers to enter.