JP3135845B2 - How to fix the farm work machine stand - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stand provided on an agricultural work machine or a stand equipped with casters, which is detachably mounted on a rear portion of a tractor via a connecting device. The present invention relates to a method for fixing a stand for an agricultural work machine which can be easily switched to a non-use position.

[0002]

2. Description of the Related Art Conventionally, there has been known an agricultural working machine which is detachably attached to a rear portion of a tractor via a connecting device and has a body or a stand or a stand with casters connected to the body. The stand or the caster stand is connected to a cylindrical holder provided on the body of the agricultural working machine by being replaced from one of upper and lower directions and locked by a pin. Is switched to a use position or a non-use position.

In addition, a stand or a connecting portion of a stand with casters is rotatably supported on one point as a fulcrum with respect to the body of the agricultural working machine, and the stand or the stand with casters is turned upside down at a use position. Some are switched to a non-use position and fixed.

[0004]

However, the above-mentioned stand or the connecting portion of the stand with casters is replaced with a cylindrical holder provided on the body of the agricultural working machine from one of upper and lower directions and locked by pins. Switching to the use position or non-use position and fixing, in order to align the holder and the stand or the stand or the stand with the caster with one hand, in order to align the engagement hole of the connection part of the stand with the caster, Since the operation of inserting and removing the pin with the other hand is performed, there is a problem that the labor is heavy and the attaching / detaching operation is difficult.

When a stand or a connecting portion of a stand with casters is rotatably supported on a fulcrum with respect to the body of an agricultural work machine, the use position and the non-use position can be easily switched. Since the stand or the stand with casters is always attached to the body of the farm work machine, the weight of the farm work machine becomes heavy, the matching balance with the tractor is deteriorated, and vibration noise occurs during work. There was a point. The present invention has been made to solve the above-mentioned various problems.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to an agricultural working machine having a stand or a stand with casters connected to the rear of a tractor via a connecting device so as to be detachable. A support hole with a notch for rotatably supporting a fixing pin provided at an upper end portion of a connection portion of a stand or a caster-equipped stand on the body of the agricultural working machine, and equidistantly above and below the support hole. A holder having a perforated use position fixing hole and a non-use position fixing hole is provided, and the support pin of the holder is rotatably supported by the support hole of the holder. Align the fixing holes drilled at predetermined intervals with the above-mentioned use position fixing holes or non-use position fixing holes, insert the locking pins, and stand or stand with casters. It is characterized in that so as to fix the position of use or non-use position.

[0007]

According to the method for fixing a stand for an agricultural work machine of the present invention by the above means, when the stand or the stand with casters is used, the fixing pin of the connecting portion is supported from the notch of the notched support hole of the holder. The locking pin may be inserted into the hole and inserted into the fixing hole of the stand or the stand with casters that matches the use position fixing hole of the holder.

To remove the stand or the stand with casters from the agricultural working machine, it is only necessary to remove the locking pin and remove the fixing pin of the connecting portion from the support hole through the notch.

When the stand or the stand with casters is switched from the use state to the non-use state, the locking pin is removed from the use position fixing hole and the fixing hole, and the stand,
Alternatively, the stand with casters may be rotated 180 degrees about the fixing pin and the support hole, and the locking pin may be inserted through the fixing hole of the stand or the stand with casters that matches the non-use position fixing hole of the holder.

[0010]

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

In FIG. 4, reference numeral 1 designates a rotary scraper (agricultural work machine) having a predetermined length in the left-right direction, and a well-known top link and a lower link provided at the front of the tractor at the front thereof. The tractor connecting portions 2 and 3 that are connected to be able to move up and down are provided in a three-point link mechanism including a link. The rotary scraper 1 is attached to and detached from the tractor almost automatically, and is driven by receiving power from the tractor. A stand 4 shown in FIG. 1 and FIG. 2 is provided in order to keep the posture constant when the rotary substitute scraper 1 is attached to and detached from the tractor.

The stand 4 detachably connects the connecting portion 5 to and from a holder 7 provided on the left and right side frames 6 and 6 (machine body) of the rotary scraper 1, and is rotatable up and down by 180 degrees. Installing. A fixing pin 8 is provided at the upper end of the connecting portion 5. A supporting hole 10 with a notch 9 for rotatably supporting the fixing pin 8 is formed at equal intervals above and below the supporting hole 10. The used position fixing hole 11 and the non-used position fixing hole 12 are provided in the holder 7.

A fixing pin 8 provided on the connecting portion 5 is rotatably supported in a support hole 10 of the holder 7.
The fixing hole 13 drilled in the connecting portion 5 at a predetermined interval from the connecting position
And the locking pin 14 is inserted, and the stand 4 is
The rotary substitute machine 1 is fixed at a use position or a non-use position.

As shown in FIG. 3, a caster 15 may be attached to the stand 4 to form a caster stand 4a, and a fixing pin 8a and a fixing hole 13a may be provided in a connecting portion 5a.

When the stand 4 or the caster stand 4a is supported for use in the agricultural work machine stand 4 or the caster stand 4a having such a configuration, the fixing pins 8, 8a of the connecting portions 5, 5a are used. Is inserted into the support hole 10 from the notch 9 of the support hole 10 with the notch 9 of the holder 7, and the fixing hole 13 of the stand 4 or the caster stand 4 a that matches the use position fixing hole 11 of the holder 7. , 13a may be inserted through the locking pin 14.

When removing the stand 4 or the stand 4a with casters from the rotary scraper 1, the locking pin 14 is removed and the fixing pins 8, 8a of the connecting portions 5, 5a are removed.
It can be easily removed simply by removing it from the support hole 10 through the notch 9. Then, the rotary scraper 1 is mounted on a tractor to perform a scraping operation.

When the stand 4 or the caster stand 4a is switched from the use state to the non-use state, the locking pin 14 is removed from the use position fixing hole 11 and the fixing holes 13 and 13a, and the stand 4 or the caster stand is removed. 4a is rotated upward by 180 degrees around the fixing pins 8, 8a and the support holes 10, and the fixing holes 13, 13a of the stand 4 or the stand with casters 4a that match the non-use position fixing holes 12 of the holder 7. The locking pin 14 may be inserted through the hole. Then, when the rotary substitute machine 1 is stored in a warehouse or moved.

When the fixing pins 8 and 8a are configured to be insertable into and removable from the connecting portions 5 and 5a, when the stand 4 or the stand with casters 4a is supported by the holder 7 in a use state, the fixing pins 8 and 8a are fixed. By inserting and removing the pins 8, 8a and the locking pin 14, the support height of the stand 4 or the stand with casters 4a with respect to the rotary scraper 1 can be adjusted.

[0019]

As described above, according to the method for fixing a stand for an agricultural working machine of the present invention, the fixing pin provided at the upper end of the connecting portion of the stand or the stand with casters is rotatably attached to the body of the agricultural working machine. A holder having a notched support hole, and a use position fixing hole and a non-use position fixing hole drilled at equal intervals above and below the support hole. The stand, or the fixed pin of the stand with casters, is rotatably supported,
Align the fixing holes drilled at a predetermined interval from the fixing pins with the above-mentioned use position fixing holes or non-use position fixing holes, and insert the locking pins, and move the stand or the stand with casters to the use position or non-use position. Since the position is fixed, the following effects can be obtained.

When the stand or the stand with casters is used, the fixing pin of the connecting portion is inserted into the support hole from the notch of the notched support hole of the holder to pierce and support the holder. It is only necessary to insert the locking pin into the fixing hole of the matching stand or stand with casters.

When removing the stand or the stand with casters from the agricultural work machine, it is possible to easily remove the locking pin by simply removing the locking pin and removing the fixing pin of the connecting portion from the support hole through the notch.

When the stand or the stand with casters is switched from the use state to the non-use state, the locking pin is removed from the use position fixing hole and the fixing hole, and the stand,
Alternatively, simply rotate the stand with casters upward by 180 degrees around the fixing pin and the support hole, and insert the locking pin through the fixing hole of the stand or the stand with casters that matches the non-use position fixing hole of the holder. Is fine.

[Brief description of the drawings]

FIG. 1 is a side view of an agricultural working machine stand according to the present invention.

FIG. 2 is a rear view of the same.

FIG. 3 is a side view of a stand according to the present invention.

FIG. 4 is a rear view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotary substitute scraper (agricultural work machine) 2, 3 Tractor connection part 4 Stand 4a Stand with casters 5, 5a Stand connection part 6 Side frame (body) of rotary substitute scraper 7 Holder 8, 8a Fixing pin 9 Notch 10 Support hole 11 Use position fixing hole 12 Non-use position fixing hole 13, 13a Fixing hole 14 Locking pin 15 Caster

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01B 59/042 A01B 33/16 B60S 9/02

Claims (1)

(57) [Claims] An agricultural work machine detachably attached to a rear part of a tractor via a connecting device and having a stand or a stand with casters connected to the machine body, wherein the stand or the stand with casters is connected to the body of the farm work machine. A notched support hole rotatably supporting a fixing pin provided at the upper end of the portion, and a use position fixing hole and a non-use position fixing hole formed at equal intervals above and below the support hole. A fixing pin of the stand or the stand with casters is rotatably supported in a support hole of the holder, and a fixing hole drilled at a predetermined interval from the fixing pin is formed in the use position fixing hole. Alternatively, the lock pin is inserted in alignment with the non-use position fixing hole, and the stand or the stand with casters is fixed at the use position or non-use position. The method of fixing the agricultural machine stand characterized the door.