JPS6014361Y2 - reaper - Google Patents

Description

[Detailed description of the invention] This invention is designed to move the fallen stem culm from the lower front to the rear in the plane along the direction of movement of the machine, on the side of the introduction route of the stem culm to the reaping device equipped with a side-rotating type forced pulling device. The present invention relates to a reaper equipped with a vertically rotating forced weeding device configured to rake up and transfer weeds using a locking claw that moves upward.

This type of reaper uses a horizontally rotating type forced pulling device to pull up planted stem culms that have a large degree of lodging, with a vertically rotating type forced culver auxiliary and forcibly pulling them up. ensuring the triggering by transferring it to the device;
In the case where the planted stem culms to be reaped and the non-targeted stem culms that are adjacent in the left and right direction are entwined, the present invention aims to enable smooth weeding to the left and right while raking up and transporting both. Due to the development, the locking pawl of the forcible weeding device is configured to constantly protrude and move over the entire area of the raking and transporting path.

Therefore, even for planted stem culms that are in an erect state where preliminary pulling action is not as necessary, the locking claws of the forced weeding device act in the same way as for planted stem culms that are highly lodging. However, there is an inconvenience that this locking claw causes undue raking of the tip of the stem and culm, resulting in grain shedding and breakage.

In view of the above-mentioned circumstances, the present invention has been developed in the case of planted stem culms with a high degree of lodging, while ensuring that the desired weed raking and transporting action by the forced weeding device is exerted. In the case of planted stem culms, it is possible to perform only the weeding action without causing shedding or breakage, and moreover, it is possible to separate the stem culm and the locking claw when only the weeding action is being performed. The goal is to ensure that things are smooth and smooth.

The features of the present invention to achieve the above objectives are as follows:
The lodging stem culm is scraped by a locking pawl that moves from the lower front to the upper rear in a plane along the direction of movement of the machine, on the side of the route for introducing the stem culm into the reaping device equipped with a horizontally rotating forced pulling device. In a reaper equipped with a vertically rotating forced weeding device configured for uplifting, the action range of the locking pawl is positioned at the end of the uplifting direction in the uplifting and forwarding direction of the forcible weeding device. A weed cutting guide rod is provided that regulates the amount of protrusion of the locking pawl to gradually decrease as the grass reaches the end, and the upper guide portion of this grass cutting guide rod is set to have a gentler shape than the raking and transfer action surface of the forced weed cutting device. Bend it so that it is slanted,
The fixed grass cutting surface along the extension line of the terminal end of the upper guide portion having a gentle slope is provided on the case side of the forced grass cutting device, and this structure provides the following effects.

In other words, when pulling up a planted stem culm in an erect state that does not require a preliminary pulling action, it is secured by the weeding guide rod provided on the raking and transfer action side of the forced weeding device. By restricting the range of action of the claw, it is possible to reliably avoid grain shedding and breakage caused by improper raking action of the tip of the stem and culm by the locking claw.

However, if a large planted stem culm with fallen dust that is crawling on the field is to be raised, by releasing the regulating action of the weeding guide rod, the forced weeding device can remove the weeding as desired. The lifting action can be reliably and satisfactorily exerted.

Further, the weeding guide rod is set to gradually reduce the amount of protrusion of the locking pawl at a location corresponding to the raking and transferring action surface of the forced weeding device as it reaches the end in the raking and transferring direction. and an upper guide portion thereof is set at a gentler slope than the scraping transfer surface, and furthermore,
A fixed grass cutting surface is provided on the case side of the forced weeding device along the extension line of the upper guide part, so the synergistic effect of these features improves the grass cutting function and prevents the separation of stem culms from the locking claws. This has the advantage of being smooth.

In other words, by gradually decreasing the amount of protrusion of the locking claw, the stem culm engaged with the locking claw is moved toward the tip of the claw, and the stem culm is rapidly pulled up at the steeply sloped rake-up transfer section. Even when the stem culm is brought closer to its upright position, this rapid pulling-up state continues for some time, and the stem culm, whose roots have not been trimmed, is caught in the hooked part on the tip side by the locking claw and becomes taut. As long as the rapid lifting action continues, it is difficult for the stem culm to be removed from the claws. The presence of the upper guide part with a steep slope and the fixed weed cutting surface that follows it makes it easier to temporarily loosen the steep pull-up and separate the stem culm from the claw than if the rapid pull-up continues.7 Moreover, since a long gently sloped surface can be formed by both the upper guide part and the fixed weed cutting surface, the weeding action, which mainly involves unraveling entangled stems and culms, can be performed without much lifting. It is possible to provide the grass for a relatively long period of time to further improve the weeding function.

Embodiments of the present invention will be described below based on the drawings.

The drawing shows a combine harvester, in which the locking claws 2A are arranged in front of a threshing device 1 mounted at the rear of the machine so that they can be rotated in a plane that is inclined rearward and upward with respect to a horizontal plane along the direction of movement of the machine. A pair of horizontally rotating forced pulling devices 2, 2, and a clipper-type cutting blade that cuts the base of the planted shell culm (planted stem culm) pulled up by both forced pulling devices 2, 2. 3, and a reaping device consisting of a vertical conveyance device 4 which gradually changes the posture of the harvested husk to a sideways posture and supplies it to the conveyance start end of the threshing feed chain IA, and the forcible pulling device 2, 2, the forced pulling device 2 is placed in the lateral outer box of the forced pulling device 2 located on the lateral outer side of the machine on the side where the threshing feed chain IA is present.
The planted stem culm introduced into the stem culm introduction path A is raked up and transferred by the locking claw 6A that moves from the lower front to the upper rear in a vertical or almost vertical plane along the direction of movement of the aircraft. A vertically rotating type forced weeding device 6 is provided.

The forcible weeding device 6 is constructed as follows.

That is, the grass cutting case 6B, which has a rectangular shape in side view, is constructed from the tip of the grass cutting support rod 7 and the front end of the cutting frame 8, which also serves as the transmission case, to the upper end of the transmission case 9, which stands upright. An endless chain 6D, in which the locking pawl 6A is pivotally mounted in a freely undulating manner, is hung over the sprockets 6C provided at both upper and lower ends and at the bent portion thereof. The weed cutting case 6B has the locking claw 6A erected and projected on the side opposite to the predetermined raking transfer path B in the front-back direction and the side of the grass cutting case 6B. A claw raising cam 6E that is vertically moved in the lower part of the front end of the grass case 6B, a claw guide rail 6F that moves the locking claw 6A along the above-mentioned raking transfer path B in the erected protruding position, and the above-mentioned The locking claw 6A that has moved to the end of the raking transfer path B is moved to the weeding case 6B.
A rubber pawl retiring cam 6G is provided inside to allow the claw to be retracted.

Then, on the peripheral edge of the claw protruding opening on the raking transfer action surface side of the outer surface of the weeding case 6B, the raking transfer path is installed at three locations appropriately spaced in the longitudinal direction of the raking transfer path B. While fixing the cylindrical members 10 having their axes along the axis B, the locking pawl 6A acts on these cylindrical members 10 only in the lower part of the raking transfer channel B. In order to control the weeding guide rod 11, the weeding guide rod 11, which is configured to have an inclination angle to the ground that is larger than the inclination angle to the ground of the locus of action of the claw 6A, is rotatably held. , can be freely switched and fixed between an active state in which it protrudes forward of the aircraft body and restricts the range of action of the locking pawl 6A, and a non-active state in which it rotates rearward through the lateral side opposite to the forcible pulling device 2. It is composed of

Further, the upper guide portion 11b of the weeding guide rod 11 is arranged so that its inclination angle with respect to the ground is smaller than the inclination angle with respect to the ground of the action locus of the locking claw 6A, so that the lower guide portion 11b corresponds to the locus of action of the locking claw 6A. The weeding case 6B is bent backward with respect to the portion 11a, and is fixed along the extension line of the upper guide portion 11b of the weeding guide rod 11 in the operating state at the portion of the weeding case 6B corresponding to the end of the upper guide portion 11b. A grass cutting surface 12 is formed.

Furthermore, the angle between the raking and transferring action surface 681 of the locking claw 6A of the forced weeding device 6 and the guide surface 61° at the base end is configured to be smaller than a right angle, so that this locking The claw 6A is configured to protrude and move along the raking and transferring path B in a state where the raking and transferring action surface 6a1 is substantially horizontal.

In the above-mentioned embodiment, the fixed grass cutting surface 12 was formed using a part of the grass cutting case 6B, but as shown in FIG. It is a good thing to do.

[Brief explanation of drawings]

The drawings show an embodiment of the harvester according to the present invention, in which Fig. 1 is an overall side view of the combine, Fig. 2 is a front view, Fig. 3 is a partially cutaway side view of the main part, and Fig. 4 is a main part. FIG. 5 is a side view of the main parts showing the embodiment. 2... Forced pulling device, work... Reaping device, 6... Forced weeding device, 6A... Locking claw, 6B... ...Case, 11... Grass division guide rod, 11b... Upper guide part, 12.
... Fixed grass surface, 13 ... Separate component, A.
... Stem culm introduction route.

Claims (1)

[Claims for Utility Model Registration] ■ Reaping device 5 equipped with a side-rotating forced pulling device 2
On the side of the stem culm introduction path A, there is a vertically rotating type machine configured to lift up and transfer the fallen stem culm by a locking pawl 6A that moves from the front lower part to the rear upper part in the plane along the direction of movement of the aircraft. In a reaper equipped with a forced weeding device 6, the action range of the locking pawl 6A is gradually changed toward the end of the raking and transferring direction on the raking and transferring surface side of the forced weeding device 6. A weed cutting guide rod 11 is provided to restrict the amount of protrusion of the weed cutting device 6A, and the upper guide portion 11b of the grass cutting guide rod 11 is sloped more gently than the raking and transferring surface of the forced weed cutting device 6. A mowing device characterized in that a fixed weeding surface 12 is provided on the case 6B side of the forced weeding device 6 along the extension line of the terminal end of the upper guide portion 11b which is bent so as to have a gentle slope. Machine. (2) The reaping machine according to claim (2), wherein the fixed grass dividing surface 12 is a part of the case 6B. (2) The mowing machine according to claim (2), wherein the fixed grass dividing surface 12 is formed from a separate member 13 attached to the case 6B.