JPH10164961A - Pawl raising rail inclination adjustment structure for raising device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily adjust the inclination angle of a rail without using tools such as a wrench and a monkey spanner, etc., in a raising device for which a pawl raising guide rail inside a raising case is constituted so as to make an upper side swingable to a raising case inner side with a lower side as a supporting point and the raising route length of a raising pawl is made changeable. SOLUTION: An elastically energized locking tool 16 is provided on one of the raising case 7 and the pawl raising guide rail 12 and a part 17 to be locked to the locking tool 16 is provided on the other respectively. The pawl raising guide rail 12 is made fixable at a prescribed position on the inner side of the raising case 7 and the locking tool 16 is made unlockable against energizing force from the outside of the raising case 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a raising device for a harvester such as a combine harvester or a rush harvester, and more particularly, to a structure for adjusting the inclination angle of a claw standing guide rail for maintaining a grain stem raising claw in a standing posture. About.

[0002]

2. Description of the Related Art In a combine harvester, a vertical rotation type forced weeding device for weeding a culm to be cut and a cereal culm not to be cut is arranged on one lateral side of an airframe. The vertical rotation type forced weeding device can change the length of the nail erecting path according to the length of the grain culm. To change the length of the nail upright path, swing the upper side inward of the case with the lower side of the nail upright guide rail as a fulcrum,
The relative spacing of the claw standing guide rail with respect to the chain is increased toward the upper side so that the contact of the claw with the rail is released. Conventionally, this guide rail inclination angle adjusting structure is provided with a bolt penetrating the case on the rail side, a long hole for the bolt on the case side, and the upper side of the claw standing guide rail in the case through the bolt and the long hole. It is configured to be swingable to one side.

[0003]

In order to adjust the inclination angle of the guide rails, a screw nut is screwed to the tip of a bolt protruding from the case using a tool such as a spanner or a monkey. Release must be performed, and adjustment of the inclination angle of the rail is troublesome.

An object of the present invention is to make it possible to easily adjust the inclination angle of a rail without using a tool such as a spanner or a monkey.

[0005]

According to a first aspect of the present invention, a guide rail for raising a claw in a raising case is configured to be swingable from an upper side to an inner side of the case using the lower side as a fulcrum. The erecting device is configured so that the length of the erecting path of the pawl can be changed. A locking tool elastically biased to one of the raising case and the guide rail for raising the nail, and the locking member to the other. The guide rails for raising the claws are raised so as to be fixed at a predetermined position on the inner side of the case, and the locking tool is unlocked against the urging force from outside the case. It is configured to be operable. [Operation] According to this configuration, since the rail is swingably fixed to the case by the elastically urged locking member and the locked portion with respect to the locking member, a tool such as a spanner or a monkey is not used. The inclination angle of the rail can be changed. [Effect] According to the first aspect of the present invention, the inclination angle of the nail erecting rail can be adjusted without using a tool such as a spanner or a monkey, and the inclination angle of the nail erecting rail can be quickly and easily adjusted. it can.

According to a second aspect of the present invention, the resiliently biased locking member is provided on the guide rail for claw erecting, and a pair of steps protruding outward from the case wall from the opposing case walls. A lock pin, and a U-shaped leaf spring provided over the pair of left and right stepped lock pins, wherein the locked portion is raised and provided with an elongated hole provided on the case side; and A large-diameter hole capable of engaging the large-diameter portion of the stepped lock pin is provided. [Operation] According to this configuration, as shown in FIGS.
After the pair of lock pins 16, 16 protruding from the case 7 is sandwiched between the thumb and the middle finger and pushed inward of the case against the elastic urging force, and then moved along the elongated hole 17, the guide rail 12 When the inclination angle is changed, and then the fingers are released from the lock pins 16, 16, the lock pins 16, 16 are engaged with the large-diameter holes 17 </ b> A, 17 </ b> A at the ends of the long holes, and the guide rail 12 is fixed. The tilt angle of the rail can be adjusted only by opening and closing the finger. In addition, by using the U-shaped leaf spring 18, for example, as shown in FIG. 8, when a pair of lock pins 16 As a result, the structure can be simplified. [Effect] According to the second aspect of the present invention, the inclination angle of the nail erecting rail can be quickly and easily adjusted only by opening and closing the thumb and the middle finger, and furthermore, the structure is realized by utilizing a U-shaped leaf spring. Can be simplified.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to a combine forced weeding device. FIG. 1 shows a front part of a combine body, wherein 1 is a divider for weeding grain culm, and 2 is a weed culm provided on one lateral side of the fuselage. Forced weeding device, which is a vertical turning type raising device, 3 is a horizontal turning type raising device that raises loose grain culms, 4 is a hair clipper type cutter that raises and cuts the root of the grain culm, 5 is cutting A vertical transport device 6 for changing the horizontal position while raising and transporting the culm is a threshing device.

FIG. 2 shows the inside of the forced weeding device,
7 is a weeding case, 8 is a driving sprocket, 9 is a passive sprocket, 10 is a chain wound around the driving sprocket 8 and the passive sprocket 9, and 11 is swingable on the chain 10 at predetermined intervals. The stalk-raising claw attached to the stalk, 12 is a nail-raising guide rail for maintaining the raising claw 11 in a standing posture, and 14 is the nail-raising claw 1
1 is a shock absorbing sponge material that prevents the claws from colliding with the inner surface of the case on the return path side due to centrifugal force when stored in the case and generating an impact sound.

The upright guide rail 12 is pivotally mounted on the inner side of the case 7 with the lower side as a fulcrum with respect to the case 7, and by changing the inclination angle of the guide rail 12, The relative spacing of the upper part of the rail 12 with respect to the chain 10 is widened, and the length of the claw standing path can be changed. Guide rail for claw standing 1
In the tilt angle changing structure of 2, the lower side of the guide rail 12 is pivotally connected to the case 7 via a pin 15 so as to be swingable, and the upper side can be fixed / unfixed to the case via an elastic lock mechanism L. Is configured.

As shown in FIGS. 3 to 5, the elastic locking mechanism L includes lock pins 16 and 1 serving as locking tools that protrude outward from a case mounted on the claw standing guide rails 12.
6. It is composed of long holes 17 and 17 for projecting lock pins provided as locked portions provided on the case 7, and a U-shaped leaf spring 18 for urging the lock pins 16 and 16 outwardly of the case. ing. The lock pin 16 is a stepped pin having a smaller diameter toward the outer side of the case.
Is inserted into the pin hole formed. The U-shaped leaf spring 18 is inserted through a hole 19 formed on the back of the guide rail 12 for raising the nail, and is fixedly connected to a mounting bracket 20 on the back of the guide rail 12 for raising the nail via a bolt / nut 21. This also serves to prevent the lock pin 16 inserted into the pin hole formed in the guide rail 12 from coming out. A long hole 17 for projecting a lock pin formed in the case 7.
Is provided with large-diameter holes 17A, 17A for inserting a large-diameter portion of a lock pin at both ends, and a communication hole for inserting the small-diameter portion of the lock pin at an intermediate portion. 1
7B. In the figure, reference numeral 13 denotes a reinforcing plate for reinforcing the inner surface of the case on the claw protruding side.

As shown in FIGS. 6 and 7, the shock-absorbing sponge material 14 is formed in a two-knob shape. Two impact surfaces smaller than
Impact noise can be reduced.

In order to change the inclination angle of the nail rising guide rail 12, a pair of right and left lock pins 1 is used with the thumb and the middle finger.
6 and 16 and a pair of lock pins 16 and 16 on the left and right.
Is pushed into the case 7 so that the large-diameter portion of the lock pin 16 comes out of the large-diameter hole 17A at the end of the long hole 17, and then the lock pins 16, 16 are held with the lock pins 16, 16 held therebetween. When the lock pin 16 is moved along the long hole 17, the lock pin 16 reaches the other end of the long hole 17, and the guide rail 12 for raising the pawl is pivoted inward of the case 7 with the lower side as a fulcrum. Becomes When the lock pins 16 and 16 are released, the urging force of the leaf spring 18 causes the lock pin 1 to move.
The large-diameter portion 6 is inserted into the large-diameter hole 17 </ b> A at the end of the long hole 17, and the guide rail 12 is fixed to the case 7.

[Other Embodiments] In the above embodiment, the vertical type forced weeding device has been described as a raising device, but the present invention can be applied to a horizontal type raising device.

The harvester may be a rush harvester or a binder.

Further, in the above embodiment, the U-shaped leaf spring 18 is used as the elastic biasing mechanism.
As shown in FIG. 7, coil springs 18, 18 may be provided between the pin 16 and the rail 18 to urge the pins 16, 16 in the protruding direction. The shape and structure of the elastic urging mechanism can be changed in design. Any shape and structure may be used within the range.

Also, a plurality of large-diameter holes 17A may be finely provided on the inner side of the case so as to be adjustable in multiple stages.

Further, as shown in FIG. 9, a stepped lock pin 16 penetrating through the case 7 is provided on the case 7 side.
On the rail side, an elongated hole 17 for the lock pin 16 is provided, and on the rail 12 side, an operating tool 22 for rail swing operation protruding outward from the case 7 is provided. An elongated hole 23 for the operating tool 22 may be provided. (Note that, in this alternative embodiment, those having the same functions as those of the above-described embodiment have the same reference numerals / numbers as those of the embodiment.
Signs are attached. )

[Brief description of the drawings]

FIG. 1 is a side view showing a front portion of a combine body.

FIG. 2 is a longitudinal sectional side view showing a posture change state of a nail standing rail.

FIG. 3 is a cross-sectional plan view of the same.

FIG. 4 is a side view showing an elongated hole of the raising case.

FIG. 5 is a side view of a lock mechanism.

FIG. 6 is a side view of the cushioning member.

FIG. 7 is a plan view of a cushioning member.

FIG. 8 is a cross-sectional plan view of a second embodiment of the lock mechanism.

FIG. 9 is a cross-sectional plan view of a third embodiment of the lock mechanism.

[Explanation of symbols]

 7 Raised case 11 Raised claw 12 Claw raised guide rail 16 Locking tool 17 Locked part 17A Large diameter hole 18 Leaf spring

Claims (2)

[Claims] An upright guide rail in a raising case is pivoted on the lower side as a fulcrum to raise the upper side so as to be swingable inward of the case so that the length of the rising path of the raising nail can be changed. In the raising device configured as described above, one of the raising case and the claw erecting guide rail is provided with a resiliently biased locking tool, and the other is provided with a portion to be locked to the locking tool. An erecting device, wherein the erecting guide rail is raised so as to be fixable at a predetermined position on the inner side of the case, and the locking tool is raised to enable unlocking operation against an urging force from outside the case. Claw standing rail inclination adjustment structure. 2. A pair of stepped lock pins provided on the claw-standing guide rail side, the pair of stepped lock pins projecting outward from a case wall facing each other, and a pair of stepped left and right steps. A U-shaped leaf spring provided over the stepped lock pin, wherein the locked portion is raised and is a long hole provided on the case side, and a large diameter portion of the stepped lock pin is formed. 2. The tilt adjusting structure for a claw-standing rail of a raising device according to claim 1, further comprising a large-diameter hole that can be engaged.