JPH03189230A - Tractor rain guard device - Google Patents

Abstract

PURPOSE:To prevent breakage of a windshield and facilitate its manufacture by dividing to upper and lower the wind shield which is fitted in a safety frame, and bearing each section vibro-isolatedly with an elastic substance interposed, wherein a gap is provided in such a dimension as admitting insertion of a finger of the driver. CONSTITUTION:In a rain guard of a tractor in which a wind shield (hereafter referred to as FG) 14 is fitted at the fore side of the front part of a four- columnar safety frame 8, the windshield 14 is separated into a first FG 15 enclosing the part over the oversurface of the hood 4 and a left and a right second FG 16 enclosing the fore side of each step 10. With a bracket interposed, an elastic member 18 having a screw shaft is mounted at each position, upper, middle, and lower of a left and a right front pillar 11. Through these elastic members 18 the first FG is fitted to the fore side of the front part of the safety frame 8, wherein a gap 29 shall be reserved in such a dimension as allowing insertion of finger of the driver. The second FG 16 are supported by a reinforcing frame 17 mounted on the bottom edge of the first FG 16, with the elastic member 18 interposed and the gap 29 reserved in the same manner.

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) 2 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 have a complete rain guard 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 above-mentioned circumstances, from a technical standpoint, tractors are large and subject to complex vibrations such as running vibrations and engine vibrations, so 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 any post-processing on the pillars of a four-post safety frame with a roof, thereby preventing breakage, and also allows the pillars of the safety frame to be attached when getting on or off a truck. To provide a rain guard device for a tractor equipped with a windshield so that it can also be used as a handrail.

(Means for Solving the Problem) The technical means is to install the control device 7 on the front side of the four-post safety frame 8 having a roof 9 erected surrounding the control bag N7. This is a rain guard device for a tractor equipped with a transparent windshield 14 that blocks rainwater etc. from blowing into a person. Brackets 24 are comprised of left and right second windshields 16 that cover the front side of the steps 10 located on both sides, and are fitted in the upper, middle, and lower positions of the left and right front struts 11 of the safety frame 8.
An elastic mounting body 18 made of an elastic material such as rubber having a threaded shaft 19 is attached to the mounting hole 15c formed in the first windshield 15, and the threaded shaft 1 located at the upper and middle portions is attached to the mounting hole 15c formed in the first windshield 15.
9 and screwing the nut 28 onto the threaded shaft 19, the first windshield 15 is attached to the front side of the front part of the safety frame 8 with a gap 29 large enough for the driver's fingers to enter. A reinforcing frame I7 in the left and right direction is attached to the lower edge of the first windshield 15, and the lower parts of the left and right second windshields 16 are attached to the reinforcing frame 17 in a suspended manner, and the lower parts of the second windshields 16 The second windshield 16 is attached to the front side of the safety frame 8 by inserting the screw shaft 19 located at the lower part into the mounting hole 15c formed at the bottom and screwing the nut 28 into the screw shaft 19. The device is attached with a gap 29 large enough to fit fingers.

(Function) According to the present invention, the windshield 14 attached to the front side of the safety frame 8 is made of elastic members at each position of the upper left and right parts, the middle left and right parts, and the lower left and right parts. The elastic mounting body 18 is mounted on the safety frame 8 in a vibration-proof manner to prevent the windshield 14 from breaking due to engine vibrations, running vibrations, etc. of the 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.

Further, the windshield 14 is a portion spanning the bonnet 4 and is divided into a first windshield 15 and left and right second windshields 1G.
4. The shape can be simplified during manufacturing, making it easier to manufacture.

(Example) Hereinafter, the present invention will be described in detail 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 on the rear wheel fender 3A, and each column 11.
．． It consists of a roof frame 13 in which the upper parts of 12 are connected to each other,
This four-post safety frame 8 has passed inspection, and each support post 11, 12, which surrounds the control device 7 and is made of steel pipes, etc.
has been erected.

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, brackets are provided at the upper and lower portions and in the middle of the left and right front struts 11 in the safety frame 8, and have elastic fitting portions 24A for the struts 11. 24 as shown in the arrow A in Fig. 4,
The elastic mounting body 18 is attached by inserting one screw shaft 19 into the hole 24B of the bracket 24 and screwing the nut 23 so that the other screw shaft 19 projects forward.

The bracket 24 in FIGS. 4 and 5 has an elastic fitting portion 24.
The bracket 24 has a curved portion 24C at the top, and is elastically fitted into the curved portion 24C, and both are fitted from the outside of the front strut 11, with the bracket 24 in the fitted state. The column 11 is slidable in the longitudinal direction, so that the position of the elastic mounting body 18 can be adjusted freely.
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 18, and a flanged tube collar 25 made of an elastic material such as rubber is fitted into the mounting hole 15C. It is installed by inserting the other screw shaft 19 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 horizontal surface 178 and a rising surface 1 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 edge of 6 is pressed 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 surface 17B are fastened together with a washer 35 and a cap nut 36 with a strip seal 30 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 168 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 consists of a wiper motor 44 and a wiper arm 46 attached to a drive shaft 45 of the motor 44 via a fastener 46, etc., and the wiper motor 44 is attached to the wiper holder 20. The wiper holder 20 is supported by a connecting plate 48 attached to the vertical surface of the roof 9 with bolts 47 and a connecting plate 50 having a wiper switch 49 collinear with a bolt 51.
The mounting bolt 21 is also used for mounting the wiper motor 44 and the like, and for mounting the first windshield 15. In addition, in FIG. 12, 15A 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 provided at each position of the upper left and right parts, the middle left and right parts, and the lower left and right parts. Since the windshield 14 is attached to the safety frame 8 in a vibration-proof manner by an elastic attachment body 18 made of an elastic material, breakage of the windshield 14 due to engine vibration, running vibration, etc. 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. .

Further, the windshield 14 is a portion spanning the bonnet 4 and is divided into a first windshield 15 and left and right second windshields 16.
4. The shape can be simplified during manufacturing, etc., and manufacturing is easy.

[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. ■... Tractor, 4... Bonnet, 7... Control device, 8... Safety frame, 9... Roof, 10
...Step, 11...Front support, 14...Windshield, 15...First windshield, 16...
2nd windshield, 17... Bar material, 18... Elastic attachment body, 19... Screw shaft, 24... Brakent, 28... Cap nut, 29... Gap. Patent applicant Kubota Iron Works Co., Ltd. No. 6, No. 9, No. 1 o Prisoner

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, the windshield (14) includes a first windshield (15) that covers above the upper surface of the bonnet (4), and a first windshield (15) that covers the upper surface of the bonnet (4).
It consists of the left and right second windshields (16) that cover the front side of the steps (10) located on both sides, and the safety frame (
An elastic mounting body (8) made of an elastic material such as rubber and having a screw shaft (19) is attached to the bracket (24) fitted in the upper, middle, and lower positions of the left and right front struts 11 (8).
18), and insert the screw shaft (19) located at the upper and middle portions into the mounting hole (15c) formed in the first windshield (15), and then attach the nut (2) to the screw shaft (19).
8), the first windshield (15) is attached to the front side of the safety frame (8) with a gap (29) large enough for the driver's fingers to fit, and
A horizontal reinforcing frame (17) is attached to the lower edge of the first windshield (15).
), the lower portions of the left and right second windshields (16) are attached in a hanging manner, and the screw shafts (19 ) and attach the nut (
28), the second windshield (16) is attached to the front side of the front part of the safety frame (8) with a gap (29) large enough for the driver's fingers to enter. Tractor rain guard device.