JPH0418328Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention has a structure in which a stem culm locking claw is moved upward in a forwardly protruding state in the middle of a support rod extending forward from a pulling device. Attach the lower end of the forced weeding device, and attach a weeding tool to the tip of the support rod, and attach the weeding tool to the back of the weeding tool. The present invention relates to a sensor mounting structure for a reaping harvester that is provided with a direction control sensor that detects the lateral position of the machine body.

[Conventional technology]

As a sensor mounting structure for this type of reaping harvester, one is known in which the lead wire of the direction control sensor is guided rearward along the top of the support rod.

[Problem that the invention attempts to solve]

However, in the case of this conventional sensor mounting structure, the lead wire of the direction control sensor is led out in an exposed state along the highest top of the support rod, so when the lead wire lifts up, the raised part It may come into contact with the stem rod locking claw of the forced weeding device and be damaged. Therefore, in order to avoid such damage to the lead wire, it is necessary to ensure that there is sufficient space between the top and bottom of the lead wire and the tip movement trajectory of the culm locking claw of the forced weeding device. It is necessary to attach the lower end of the forced weeding device to the support rod via a tall bracket. However, as a result, the culm scooping and locking position of the culm locking claw of the forced weeding device also becomes higher, so the culm scooping action surface of the weeding tool is maintained at an appropriate scooping angle. In order to reliably transfer the stem culms scooped up by this weeding tool to the forced weeding device, the front and back length of the weeding tool must be lengthened, and the length of the machine is lengthened accordingly. There is.

In addition, by forming the weeding tool support rod with a pipe and passing the lead wire through the weeding tool support rod, it is possible to prevent the lead wire from being exposed to the outside, and to protect it in addition to the weeding tool support rod. It is possible to prevent the lead wire from floating up by installing a member, but it is necessary to pass the lead wire through the weeding tool support rod and protective member, which takes time and effort to assemble the weeding tool support rod. Additionally, there is a drawback that the number of parts increases due to the separate use of the protective member.

The present invention was developed in view of the above-mentioned circumstances, and allows the length of the aircraft to be shortened while reliably protecting the lead wires of the direction control sensor. The purpose of the present invention is to enable the forceful weeding device to be firmly supported and mounted so that it can be put into a working posture from any position.

[Means for solving problems]

In order to achieve the above object, the sensor mounting structure for a reaping harvester according to the present invention has the above-mentioned structure, and includes forming a groove in the support rod that opens upward along the longitudinal direction of the support rod. With,
A pair of left and right mounting plates connected to the lower end of the forcible weeding device are connected to the support rod in such a manner that they sandwich the support rod from both the left and right sides, and are connected to the support rod in such a manner that they sandwich the support rod from both the left and right sides, and are attached to the groove and the two mounting plates in a state that straddles the groove. The lead wire of the direction control sensor is led out rearward through a space surrounded by a protection member with a downward opening extending across the mounting plate.

The functions and effects of this characteristic configuration are as follows.

[Effect]

In other words, the protective member installed across the pair of attachment plates for connecting the forced weeding device attached to the lower end of the forced weeding device can reliably prevent the lead wires of the direction control sensor from lifting up. Since the distal end movement locus of the stem culm locking claw can be brought as close to the protection member as possible, the attachment position of the lower end of the forced weeding device can be lowered as much as possible. Moreover, since the lead wire is inserted into the groove formed in the support rod and led out, the mounting position of the lower end of the forced weeding device can be further lowered by the amount of insertion. Moreover, the protective member also serves as reinforcement for the mounting plate, and the lead wires only need to be laid along the grooves.

[Effect of idea]

Therefore, according to the present invention, the stem culm scooping and locking position by the stem culm locking claw of the forced weeding device can be lowered as much as possible compared to the conventional structure, so it can be used as a weeding tool as well. It only needs to be short, and while it reliably protects the lead wire of the direction control sensor, the length of the machine can be shortened and compact, and the protective member also serves as a reinforcement member for preventing the lead wire from floating up and for the mounting member of the forced weeding device. Therefore, the number of parts can be reduced,
In addition, the installation of the lead wire has become a simple task of simply running the lead wire along the groove of the support rod and installing a forced weeding device.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in FIG. 5, a threshing device 3 is mounted on a traveling machine body equipped with a control section 1 and a crawler-type traveling device 2, and in front of the threshing device 3, a pulling device 4, a reaping device 5, and a conveying device 6 are installed. A reaping section 7 equipped with a reaping section 7 is provided so as to be movable up and down to form a combine harvester as an example of a reaping/harvesting machine.

Forced weeding devices 8 are provided in front of the pulling device 4 and at both left and right ends of the reaping section 7, and at the front of both of these forced weeding devices 8 and at intermediate positions between them. , a fixed weed divider 9 made of bent sheet metal is provided.

As shown in FIGS. 2 and 3, the forced weeding device 8 includes a chain 10 that is rotatable in the vertical direction within a vertical plane along the direction of movement of the aircraft, inside the case 17.
, and the stem culm locking claws 11 are pivotally mounted at a plurality of locations in the rotation direction of the chain 10 so as to be able to rise and fall freely, and on the inner side of the rotation path of the chain 10.
A guide 12 for maintaining the stem culm locking pawl 11 in an upright position is provided in the portion extending from the bottom to the top, and by driving the stem culm locking pawl 11 upward while protruding forward of the machine. , the stem culm scooped up by the weeding tool 9 is locked and raised into an upright position, and then delivered to the pulling device 4.

A weeding tool 9 located in front of the forced weeding device 8
To provide this, a support rod 14 is extended from the pipe-shaped cutting blade frame 13 to which the pulling device 4 and the reaping device 5 are attached, passing below the forced weeding device 8, and a support bracket 15 is connected to the tip of the support rod 14. At the same time, the weeding tool 9 is attached to the support bracket 15 so as to be able to change its posture within the range of a pair of front and rear elongated holes 16a and 16b.

Further, mounting plates 19, 19 are integrally connected to both sides of the lower end of the case 17 of the forced dispensing device 8 through a U-shaped protection member 18 with a downward opening.
is mounted so that the mounting position can be changed freely through three elongated holes 20a, 20b, and 20c, and an angled connecting pin 21 is provided across the mounting plates 19, 19 and the support rod 14 so that it can be inserted and removed. ,
The lower end of the forced weeding device 8 is configured to be connectable and detachable to the support rod 14.

As shown in FIGS. 1 to 3, a support frame 2 extending rearward and upward is attached to the uncut side of the support bracket 15 where the threshing feed chain 3a of the threshing device 3 is located.
2 are connected by welding, and a direction control sensor 23 is attached to the rear end of this support frame 22.
A groove 24 that opens upward along the longitudinal direction is formed, and a wire harness 25, which is a lead wire of the direction control sensor 23, is inserted into the groove 24 through a space surrounded by this groove 24 and the protection member 18. It is guided backwards in a state where it enters.

The direction control sensor 23 moves the left and right sensor bars 26 around the vertical axis to detect the amount of lateral deviation of the body with respect to the planted stem culm based on the swing angle accompanying the contact with the base of the planted stem culm. provided so as to be able to swing freely, and
The free end sides of both sensor bars 26 in a state where they are not in contact with the stem culm are connected to the stem culm locking claw 1 of the forced weeding device 8.
The sensor bar 26 is installed behind the imaginary line L drawn vertically from the front end of the rotation locus 1, and the sensor bar 26 is placed behind the imaginary line L drawn vertically from the front end of the rotation locus 1. It is configured to act on the original.

Furthermore, as shown in FIG.
The sensor 23 is electrically connected to the electromagnetically operated three-position switching valve 29 for selectively supplying pressurized oil to the stem culm. The direction control mechanism 30 is configured so that the vehicle can be steered while traveling for work.

Note that although numbers are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of drawings]

The drawings show an embodiment of the sensor mounting structure for a reaping harvester according to the present invention, and FIG. 1 is a longitudinal cross-sectional rear view of the main part;
FIG. 2 is a longitudinal sectional side view of the main part, FIG. 3 is a front view of the main part, FIG. 4 is a direction control system diagram, and FIG. 5 is a side view of the front half of the combine harvester. 5... Pulling device, 8... Forced weeding device, 9...
... Grass divider, 11 ... Stem culm locking claw, 14 ... Support rod, 18 ... Protective member, 19 ... Mounting plate, 23 ...
...Direction control sensor, 24...Groove, 25...Lead wire.

Claims (1)

[Scope of utility model registration request] A support rod 14 extending forward of the lifting device 4
In the middle of the step, attach the lower end of the forced weeding device 8, which is configured so that the stem culm locking claw 11 is moved upward in a forwardly protruding state, and attach the weeding tool 9 to the tip of the support rod 14, In addition, this weeding tool 9 has a sensor mounting structure for a reaping/harvesting machine in which a direction control sensor 23 is provided on the back of the weeding tool 9 to detect the lateral position of the machine body with respect to the planted stem culm by coming into contact with the planted stem culm. It's hot,
A groove 24 that opens upwardly along the longitudinal direction of the support rod 14 is formed in the support rod 14, and a pair of left and right mounting plates 19, 19 are connected to the lower end of the forced weeding device 8. A protective member with a downward opening is connected to the support rod 14 in a state where the support rod 14 is sandwiched from both left and right sides, and is installed across the groove 24 and both the mounting plates 19, 19 in a state spanning the groove 24. The lead wire 2 of the direction control sensor 23 passes through the space surrounded by
Sensor mounting structure of a reaping harvester in which 5 is led out to the rear.