JPH07329663A - Frame structure for protecting farm working machine from overturning - Google Patents

Abstract

PURPOSE:To provide a frame structure protecting a farm working machine from overturning, capable of being post-installed and having superior appearance. CONSTITUTION:A fender 13 for rear wheels is provided with backwardly opened notch 15. The leg part of a falling down protective frame is inserted into the notch 15 from its rear, and is attached to the fender 13 for the rear wheels in such a manner that the opening part 17 of the notch 15 may be closed by means of a reflector 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safety frame structure for an agricultural work machine installed above a driving section.

[0002]

2. Description of the Related Art A safety frame must be installed above a driver from a highly rigid fixed portion such as a transmission case or an axle case in order to protect the driver when the vehicle body falls.

Therefore, conventionally, as shown in Japanese Unexamined Patent Publication No. 6-48259, a pillar of a safety frame is erected from a fixed portion of an axle case through a through hole provided in a rear wheel fender, and the pillar is connected to the safety frame and the pillar. Had been bolted.

[0004]

However, when the safety frame is attached to the vehicle body, the support pillar of the safety frame is erected on a fixed portion such as an axle case, and the support pillar is inserted into the through hole of the rear wheel fender to remove the rear wheel. After the fender is attached to the vehicle body, the assembly process is decided such that the gate-shaped safety frame is connected and fixed to the column, and the assembly and maintenance work such as retrofitting the safety frame or removing only the rear wheel fender There was room for improvement in terms of efficiency.

It is also conceivable that the support pillar of the safety frame is erected from the vehicle body fixing portion through the inside of the rear wheel fender, but it is necessary to bend the support pillar abruptly to the outside of the fuselage on the upper surface of the rear wheel fender. There is a problem in terms of appearance.

An object of the present invention is to provide a safety frame structure for an agricultural working machine, which can be retrofitted with a safety frame and has a good appearance.

[0007]

A characteristic configuration of the present invention for achieving this object is to provide a rear frame fender with a notch opened rearward, and a safety frame provided upright from a vehicle body fixing portion below the fender. There is a point that the pillar part is inserted into the notch from the rear side, the safety frame is installed above the operating part, and the opening part of the notch is closed by a reflector attached to the rear end of the fender. , And the effects are as follows.

[0008]

That is, after attaching the rear wheel fender to the vehicle body, the pillar portion of the safety frame is inserted from the rear into the notch opened rearward of the fender, and the safety frame is installed above the driver from the vehicle body fixing portion. The reflector can then be attached to the rear end of the fender so as to cover the opening of the notch.

On the contrary, it is also possible to assemble or remove the rear wheel fender on the vehicle body after the pillar portion of the safety frame is erected from the vehicle body fixing portion.

[0010]

Therefore, according to the present invention, only the safety frame can be replaced and retrofitted with the rear wheel fender attached to the vehicle body, or only the rear wheel fender can be removed with the safety frame attached. Since work such as assembly and maintenance can be performed, work efficiency such as assembly and maintenance is greatly improved, and the appearance can be adjusted by the reflector attached to the rear wheel fender.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, an agricultural tractor, which is an example of an agricultural work machine, has an engine E mounted on the front part of a machine body having front wheels 1 and rear wheels 2 and a mission case M arranged on the rear part of the machine body. However, the operating section 4 is provided on the upper part of the machine body, and the safety frame 5 is installed so as to be installed above the operating section 4.
Is erected.

As shown in FIGS. 1 and 2, the safety frame 5
Is composed of a pair of left and right strut portions 6 made of steel pipe material and a gate-shaped upper crossbar 7 made of steel pipe material. The strut portion 6 is formed by welding a fixing bracket 9 to the base end portion of each strut 8. The vehicle body fixing portion 10 is configured by firmly fixing the respective brackets 9 to the mission case M by bolts.

The upper ends of the columns 8 and the upper crossbar 7
Chrysanthemum-shaped engaging portions 11 are formed on both lower end portions of
By rotating the upper crossbar 7 at an arbitrary angle around the horizontal axis P and rotating the operation handle 12, the engaging portion 11 can be fastened and fixed by a connecting bolt.

As shown in FIGS. 3 and 4, the rear ends of the fenders 13 of the rear wheels 2 are each formed in a downwardly facing "U" shape when viewed from the front, and have a pair of bosses 14 for mounting the reflectors 16. It is welded and fixed, and left and right fenders 13
A notch 15 that is open rearward is provided on the upper surface of the.

Therefore, after fixing the fenders 13 of the left and right rear wheels 2 to the vehicle body, the left and right supporting columns 6 of the safety frame 5 are inserted into the notches 15 from the rear side, and the bracket 9 of the supporting column 6 is attached to the mission case. It is possible to fix the reflectors 16 to the bosses of the fender 13 with screws and fix the reflectors 16 to the bosses 14 of the fender 13 by bolting them to the M and then closing the notched openings 17 from the rear with the reflectors 16.

On the contrary, the safety frame 5 is attached to the vehicle body fixing portion 1
After standing upright from above the driving unit 4 from 0, the fenders 13 of the left and right rear wheels 2 can be assembled to the vehicle body, and the notch opening 17 of the fender 13 can be covered with the reflector 16.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is an overall side view of a tractor that is an example of the present invention.

FIG. 2 is a rear view of the tractor showing a safety frame structure.

FIG. 3 is a plan sectional view of a main part of a rear wheel fender portion.

FIG. 4 is an exploded perspective view of essential parts of a rear wheel fender portion.

[Explanation of symbols]

 2 Rear wheel 4 Driving part 5 Safety frame 6 Support part 13 Fender 15 Notch 16 Reflector 17 Opening

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[Procedure amendment]

[Submission date] September 2, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

[Title of Invention] Overturn protection frame structure for agricultural work machines

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a fall protection frame for an agricultural working machine installed above a driving section.

[0002]

2. Description of the Related Art An overturning protection frame has to be installed above a driver from a highly rigid fixed portion such as a mission case or an axle case in order to protect the driver when the vehicle body falls over.

Therefore, conventionally, as disclosed in Japanese Patent Laid-Open No. 6-48259, a column of a fall protection frame is erected from a fixed portion of an axle case through a through hole provided in a rear wheel fender to form a fall protection frame. The pillar and the bolt were fixed.

[0004]

However, when the fall protection frame is attached to the vehicle body, the column of the fall protection frame is erected on a fixed portion such as an axle case, and the column is inserted into the through hole of the rear wheel fender. After mounting the rear wheel fender on the vehicle body, the assembly process was decided such that the gate-shaped fall protection frame was connected and fixed to the column, and the fall protection frame could not be attached later or only the rear wheel fender could not be removed. There was room for improvement in terms of maintenance work efficiency and maintenance.

It is also conceivable to erect the columns of the fall protection frame from the vehicle body fixing part through the inside of the rear wheel fender, but it is necessary to bend the columns abruptly to the outside of the fuselage at the upper part of the rear wheel fender, There is a problem in terms of appearance.

SUMMARY OF THE INVENTION An object of the present invention is to provide a fall protection structure for an agricultural work machine which can be retrofitted with a fall protection frame and which has an excellent appearance.

[0007]

In order to achieve this object, a characteristic structure of the present invention is to provide a fall protection frame in which a rear wheel fender is provided with a notch opened rearward and which is erected from a vehicle body fixing portion below the fender. In the point that the strut part of the is inserted into the notch from the rear, the fall protection frame is installed above the operating part, and the opening of the notch is closed by a reflector attached to the rear end of the fender. Its action and effect are as follows.

[0008]

That is, after the rear wheel fender is attached to the vehicle body, the column portion of the fall protection frame is inserted from the rear into the notch opened to the rear of the fender so that the fall protection frame is located above the driving part from the vehicle body fixing part. It can be installed and then a reflector can be attached to the rear end of the fender so as to cover the opening of the notch.

On the contrary, it is also possible to assemble or remove the rear wheel fender on the vehicle body after the column portion of the overturn protection frame is erected from the vehicle body fixing portion.

[0010]

Therefore, according to the present invention, only the fall protection frame is replaced and retrofitted with the rear wheel fender attached to the vehicle body, or only the rear wheel fender is attached with the fall protection frame attached. Work such as assembling and maintenance can be greatly improved because the work can be done by removing and assembling and maintaining, and the appearance can be adjusted by the reflector attached to the rear wheel fender.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, an agricultural tractor, which is an example of an agricultural work machine, has an engine E mounted on the front part of a machine body having front wheels 1 and rear wheels 2 and a mission case M arranged on the rear part of the machine body. However, the operation part 4 is provided on the upper part of the machine body, and the fall protection frame 5 is erected so as to be installed above the operation part 4.

As shown in FIGS. 1 and 2, the overturn protection frame 5 is composed of a pair of left and right support portions 6 made of steel pipe material and a gate-shaped upper cross bar 7 made of steel pipe material.
A fixing bracket 9 is welded to the base end portion of each column 8, and the vehicle body fixing portion 10 is configured by firmly fixing each bracket 9 to the mission case M by bolts.

The upper ends of the columns 8 and the upper crossbar 7
Chrysanthemum-shaped engaging portions 11 are formed on both lower end portions of
By rotating the upper crossbar 7 at an arbitrary angle around the horizontal axis P and rotating the operation handle 12, the engaging portion 11 can be tightened and fixed by a connecting bolt.

As shown in FIGS. 3 and 4, the rear ends of the fenders 13 of the rear wheels 2 are each formed in a downwardly facing "U" shape when viewed from the front, and have a pair of bosses 14 for mounting the reflectors 16. It is welded and fixed, and left and right fenders 13
A notch 15 that is open rearward is provided on the upper surface of the.

Therefore, after the fenders 13 of the left and right rear wheels 2 are fixed to the vehicle body, the left and right supporting columns 6 of the overturn protection frame 5 are inserted into the notches 15 from the rear side to support the supporting columns 6.
The brackets 9 can be fixed to the mission case M by bolts respectively, and then the notch opening 17 can be closed from the rear by a reflector 16, and the reflector 16 can be fixed to the boss 14 of the fender 13 with screws.

On the contrary, after the fall protection frame 5 is erected from the vehicle body fixing portion 10 above the driving portion 4, the left and right rear wheels 2 are provided.
It is possible to assemble the fender 13 of No. 1 to the vehicle body and cover the notch opening 17 of the fender 13 with the reflector 16.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is an overall side view of a tractor that is an example of the present invention.

FIG. 2 is a rear view of the tractor showing a fall protection frame structure.

FIG. 3 is a plan sectional view of a main part of a rear wheel fender portion.

FIG. 4 is an exploded perspective view of essential parts of a rear wheel fender portion.

[Explanation of symbols] 2 Rear wheel 4 Driving section 5 Fall protection frame 6 Support section 13 Fender 15 Notch 16 Reflector 17 Opening section

Claims (1)

[Claims] 1. A notch (15) opened rearward is provided in a fender (13) of a rear wheel (2), and the fender (1)
3) The pillars (6) of the safety frame standing upright from the vehicle body fixing portion (10) below are inserted into the notches (15) from the rear, and the safety frame (5) is installed above the driver (4). The reflector (1) in which the opening (17) of the notch (15) is attached to the rear end of the fender (13).
The safety frame structure of the agricultural work machine that is closed in 6).