JPH0449872Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field This invention is used in harvesting machines such as combine harvesters, binders, etc., to use a stem culm pulling part that lifts and arranges planted stem culms, It relates to a tine-type stem culm hooking and transferring device used in a conveyance unit etc. that sends culm to a required location, and in particular, a tine erecting device that changes the attitude of the tines to an upright state at the starting end of the hooking guide path in the transfer device. It concerns improvements to the guide structure.

(B) Prior art The above-mentioned tine type stem culm hooking and transferring device has a chain in which tines that can be raised and rotated are attached at predetermined intervals, and is hung around the tine case, and the tines, which are moved by the rotation of the chain, are hooked up. The culm is constructed so that it projects outward from the tine case at the starting end of the traction guide path, and the stem culm in the traction guide path is pulled and transferred by the tine in the upright position. In conventional devices of this type, the guide structure for changing the attitude of the tines to the upright position at the starting end of the engagement has a structure as shown in FIGS. 4 and 5.

In other words, in the conventional stem culm engagement and transfer device, the ring body 102 for hanging the chain 104 disposed in the tine case 101 and the tines 105 . The tine 1 is installed concentrically with the raising inner ring body 106 for changing its posture to the state, and is moved by the rotation of the chain 104.
05... is configured such that when its base 105a comes into contact with the upright inner ring body 106 that rotates concentrically with the chain hanging ring body 102, the tilted position suddenly changes to an upright position.

(c) Problems to be solved by the invention The internal structure of the tine upright system of the conventional device is as described above, and the tine moves inside the tine case in a tilted position and then changes to the upright position at the side of the end where engagement begins. When the tines are forced to stand up suddenly, if the tines suddenly change their posture and act as a hook on the stem culm,
This creates a problem in that a large impact force is applied to the stem culm, causing the culm body of the stem culm to break, and the tines themselves are also subjected to impact due to sudden changes in posture. There are also problems that can easily lead to accidents such as damage.

Therefore, the present invention provides an improved internal structure for erecting a tine so that the tine can be gradually changed to an upright position at the beginning of engagement.

(d) Means for solving the problems In order to solve the above-mentioned problems, in the present invention, tines that can be raised and rotated are attached at predetermined intervals to a chain that is wound around multiple wheels in a tine case, and the tines are The base portion is brought into contact with the abutment circumferential surface of the raising inner wheel body disposed on the chain hooking wheel body portion on the engagement start side of the tine case to change the tine to an upright posture and protrude into the engagement guide path. In the stem culm engagement and transfer device, the abutting peripheral surface of the upright inner ring body substantially coincides with the outer circumference of the chain hanging wheel body at a rear portion on the engagement guiding path side, and the chain hanging body at the opposite side portion. In order to retract inward from the outer periphery of the rotating body, the axis of the raising inner ring body is provided eccentrically with respect to the axis of the chain-hanging rotating body, and this raising inner ring body 6 and The tines 5 gradually stand up as the tines 5 come into contact with each other, and when they reach the engagement guide path 7 on the side of the tine case 1, they are in a position perpendicular to the chain 4. It has a guide structure.

(e) Effect Therefore, according to the internal structure for raising the tine of the present invention, the base of the tine moving in the tine case in a rotated position comes into contact with the abutment peripheral surface of the inner ring for raising, and the entire tine is raised. At the stage of changing to the standing position, the raising inner ring body is eccentric with respect to the chain hanging ring body and its abutting peripheral surface is retracted from the chain hanging ring body circumferential surface, so that the tine base The contact with the contact circumferential surface of the tines does not come into contact all at once, but gradually, and the posture of the tines gradually changes toward an upright state. Because of the changes made, the impact forces exerted by the tines on the stem culm as well as the impact forces experienced by the tines themselves are reduced.

(f) Examples The embodiments of the present invention will be described below based on the drawings.

The attached drawings show a case in which the structure of the present invention is implemented in a binder stem culm pulling device, which is one of the stem culm engagement and transfer devices. Figure 1 shows a cross-sectional view of the main part of the culm pulling device in the same binder, and further,
FIG. 2 shows the operating state of the tine erection internal structure according to the present invention.

The binder shown in FIG. 3 is constructed by equipping the front part of a vehicle body which is configured to run on wheels 9 and to be operated by a control handle 10 with a reaping and tying machine.

The reaping and tying machine forms a traction guide path 7 for rearwardly transporting the planted stem culm from a portion between the dividers 12 and 12 at the front ends of the frames 11 and 11, and connects both sides of the traction guide path 7. A pulling device 13 is disposed beside the divider 12, which tilts diagonally upward rearward from the divider 12, 12 portion when viewed from the side, and furthermore, a cutting blade device 14 is horizontally disposed at the lower rear end of the engagement guide path 7. A deck 15 is installed on the rear side of the cross-feeding path formed in the cutting blade device 14, and a binding device 16 is installed at the end of the cross-feeding path.

The lifting device 13 is formed from the tine case 1 and a guide body 17 which is provided oppositely and appropriately spaced from the tine case 1, and the structure of the present invention is implemented in one part of the tine case.

At the rear upper part inside the tine case 1, there is a driving wheel body 3.
However, a floating wheel body 2 is disposed at the lower front end of the interior, and a chain 4 is wound around both wheel bodies 3, 2.
The chain 4 is forcibly driven by the rotation of the drive wheel body 3, and a large number of tines 5 are attached to the chain 4 at regular intervals so as to be able to stand up and rotate.

Each tine 5... assumes a turned position on the side far from the above-mentioned engagement guide path 7 and moves from above to below, and the lower end of the tine case 1, that is, the start end of the engagement guide path 7. , the tine base 5a
is changed to the upright position by contacting the abutment circumferential surface 6a of the raising inner ring body 6 disposed on the wheel body 2, and thereafter projects into the engagement guide path 7 while being maintained in the upright position. It moves from the bottom to the top along the same path 7, and when it reaches the top of the tine case 1, it rotates and moves back into the tine case 1. This operation is repeated.

Therefore, the raised inner ring body 6 has its contact peripheral surface 6a formed of a cushioning material 8 such as an elastic body, and the first
As shown in FIG. 2 and FIG. 2, it is provided with a shaft support 18 so as to rotate about an axis P eccentric by a predetermined dimension with respect to the axis O of the wheel body 2 around which the chain 4 is wound. The abutting peripheral surface 6a is the engagement guide path 7
The rear portion of the chain-hanging wheel body 2 is configured to substantially coincide with the outer circumferential surface of the chain-hanging wheel body 2, and the opposite side, which is shifted 180 degrees from that portion, is in a state where it retracts from the outer circumferential surface of the chain-hanging wheel body 2. There is.

Next, the operation of the tine raising internal structure of the embodiment will be explained. When the tines 5 . I will do it.

At this time, the direction of the chain 4 to which the tines 5... are attached is changed at the part where the two wheels wrap around, while the base portion 5a of the tines 5... is retracted inward from the outer peripheral surface of the wheel 2. Since the contact surface 6a is in contact with the contact surface 6a, the entire contact surface of the tine base 5a does not contact the contact surface 6a all at once, but gradually comes into contact with the contact surface 6a as shown in FIG. Tine 5
The tine changes its posture to an upright state with a relatively gentle movement without being suddenly erected. Therefore, when the tines engage the stem culm, the impact force exerted on the stem culm increases. In addition, the impact load applied to the tines themselves is also weakened, and in addition, the contact peripheral surface 6a is made of a cushioning material 8 such as an elastic body.
Because of this, the impact force at the time of contact is further reduced.

(g) Effects of the device As is clear from the above explanation, the present invention provides a method for changing the tines 5 to an upright position in a stem culm engagement and transfer device in which the tines 5 stand up and rotate. The raised inner ring body 6 has a contact surface 6a that substantially coincides with the outer periphery of the chain hanging wheel body 2 at the rear part on the side of the engagement guide path 7, and is smaller than the outer periphery of the chain hanging ring body 2 at the opposite side part. The axis P of the raising inner ring body 6 is eccentrically provided with respect to the axis O of the chain hanging wheel body 2 so as to move inwardly,
The tines 5 gradually stand up as they come into contact with the raising inner ring body 6, and when they reach the engagement guide path 7 on the side of the tine case 1, they are perpendicular to the chain 4 for the first time. Since the structure is configured so that the chain 4 is wrapped around the chain hanging wheel 2, the tines 5 do not suddenly become perpendicular to the chain 4 at a high circumferential speed part where the chain 4 wraps around the chain hanging wheel 2. Since the transition occurs in a state where the sweepback angle gradually decreases, the force pushing the culm in the lateral direction becomes smaller in the same part, preventing the culm from breaking, and in the engagement guide path 7 where the circumferential speed decreases, the tines 5 move towards the chain 4. The culm can be reliably engaged by taking a posture perpendicular to the culm, and the culm can be reliably engaged and transferred with less culm breakage.

Furthermore, since the posture change of the tines 5 to the upright state is carried out by the upright inner ring body 6, the structure is simpler and easier to manufacture than that which is carried out by a specially shaped fixed guide. In addition, the sliding resistance of the tines 5 is small, resulting in smooth operation, and wear and tear on both the tines 5 and the raising inner ring body 6 is reduced, resulting in improved durability.

In addition, when the abutting peripheral surface 6a of the raising inner ring body 6 that the tine base 5a abuts is formed of a cushioning material 8 such as an elastic body, the above-mentioned impact force is further reduced and the desired effect is further improved. There are also benefits that can be improved.

[Brief explanation of the drawing]

The drawings illustrate the case where the internal structure for raising the tine of the present invention is applied to a culm pulling device for a binder.
3 is an overall plan view of the binder, FIG. 4 is a sectional view showing the conventional structure in the same state as FIG. 1, and FIG. 5 is an explanatory diagram of the operation of the conventional structure. 1... Tine case, 2, 3... Ring body, 4...
Chain, 5... Tine, 5a... Base of tine,
6... Raised inner ring body, 6a... Contact peripheral surface, 7...
Engagement guidance route, 8...buffer material.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. Tines 5... which can be raised and rotated are attached at predetermined intervals to a chain 4 that extends around multiple wheels 2 and 3 in a tine case 1, and the bases 5 of the tines 5...
a is brought into contact with the abutting circumferential surface 6a of the raising inner ring body 6 disposed on the chain hooking wheel body 2 part on the starting end side of the tine case 1, and the tines 5... are changed to the standing posture. In the stem culm engagement transfer device configured to project into the engagement guide path 7, the abutment peripheral surface 6a of the upright inner ring body 6 is connected to the chain hanging wheel body at a rear portion on the engagement guide path 7 side. The axis P of the raising inner ring body 6 is aligned with the outer circumference of the chain-hanging ring body 2 so that it substantially coincides with the outer periphery of the chain-hanging ring body 2, and retracts inward from the outer periphery of the chain-hanging ring body 2 at the opposite side. The tines 5... are provided eccentrically with respect to the axis O of the tine case 1, and the tines 5... are gradually raised by contact with the raising inner ring body 6, and reach the engagement guide path 7 in the side part of the tine case 1. A tine-erecting internal structure of a stem culm engagement and transfer device, characterized in that the tine is in a posture perpendicular to the chain 4 when it is erected. 2. The tine-erecting internal structure of the stem culm engagement and transfer device according to claim 1), wherein the abutting peripheral surface 6a of the inner-erecting ring body 6 is formed of a cushioning material 8 such as an elastic body.