JPH0626108Y2 - Stem culm raising device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a stem-culm raising device equipped in a harvesting machine such as a combine harvester, and more specifically, from a front case portion and a rear case portion. TECHNICAL FIELD The present invention relates to a stem culm raising device in which a plurality of stem culm raising claws are pivotally attached to an endless chain stretched inside a constructed raising case.

[Conventional technology]

The conventional raising device has a structure in which a rear case portion fixed to the machine body side is connected to a rear side case portion by bolts by unfastening a stay or the like provided in the case.

[Problems to be solved by the invention]

However, in the above-described conventional structure, the plurality of bolt fixing portions must be disconnected at the front and rear sides during maintenance and cleaning inside the raising case, which is a troublesome and time-consuming operation, and is also dedicated. I also needed a tool.

It is an object of the present invention to provide a stem culm raising device which has a simple structure and facilitates the above maintenance work.

[Means for solving problems]

A characteristic configuration of the present invention is that in the introduction stem culm raising device, a plurality of fitting pins are provided on the front side case portion so as to project toward the rear side, and the fitting pin is provided on the rear side case portion. A point provided with a plurality of boss portions for fitting in and maintaining a space between the both case portions, and a concave portion is formed on the free end side of each of the fitting pins, and on the rear surface of the rear side case portion, A spring wire that is elastically deformable along the surface is provided over each pin fitting part, and a rotation stop part that is bent and formed in the opposite direction in the extension part of the spring wire rotates around the axis. In the state in which the movement is blocked, the spring wire rod is configured to engage with the respective recesses to prevent the respective fitting pins from being pulled out. The action and effect are as follows.

[Action]

(A) With the above characteristic configuration, the front side case portion and the rear side case portion can be easily positioned and set with a predetermined interval by a simple work of inserting the fitting pin into the boss portion. With the above characteristic configuration, the pin can be retained or released by artificially elastically deforming the spring wire to engage and disengage with the recess while the fitting pin is fitted in the boss portion. . Further, the state of engagement with the recess is maintained by its own elastic force.

Since this spring wire rod can be engaged with each of a plurality of fitting pins, the number of fitting pins can be smaller than the number of fitting pins, and the rotation preventing portion formed on the spring wire member restricts the rotation around the axis. Therefore, it is possible to always maintain an appropriate engagement posture with respect to the plurality of pin concave portions.

Further, since the engaging action portion for the fitting pin is an elastic body, when the fitting pin is inserted into the boss portion, an inclined surface such as a guide surface formed for facilitating insertion into the fitting pin is used. The spring wire can be automatically elastically deformed and automatically engaged, and the front case portion can be easily attached.

[Effect of device]

Therefore, due to the above-mentioned actions (a) and (b), the raising / closing operation of the case can be easily performed, and the maintenance operation can be easily performed in a short time.

Further, since the spring wire is used to prevent the plurality of pin fitting portions from being pulled out, the structure is simpler than that in the case where each fitting portion is provided with a retaining member, and in particular, the front case At the time of mounting the portion, the engaging portion may be elastically retracted with respect to the pin concave portion so as to be automatically engaged, so that the pin can be efficiently mounted. Moreover, the elastic member for engaging and urging necessary for preventing the pin from coming off and coming off can be composed of one member and the engaging member with respect to the concave portion, and the number is smaller than that for a plurality of fitting pins. Since the number of spring wires can be used, the structure is simple and the cost can be reduced.

〔Example〕

FIG. 1 shows a stem culm raising device (1) according to the present invention.

In this raising device (1), an endless chain (3) is stretched inside a raising case (2), and a plurality of stem culm raising claws (4) are pivotally attached to the chain (3) at a predetermined pitch. Is configured.

The endless chain (3) has an upper drive sprocket (5).
And tension sprocket (6) and lower guide roller (7)
Each is wound. And this endless chain (3)
Is the guide member (8
It is guided by a) and (8b), and the position is regulated in the front-back direction.

As shown in FIG. 2, the raising case (2) includes a front case portion (hereinafter abbreviated as a front case) (2a) and a rear case portion (hereinafter abbreviated as a rear case) (2b). The front guide member (8a) is fixed to the front case (2a), and the rear guide member (8b) is fixed to the rear case (2b). Further, the pull-up claw (4) is the guide member (8a),
(8b) In the raising action path on the installation side, the raising cam portion (4a) provided at the pivotal base portion is slidably guided to the outer surfaces of the guide members (8a) and (8b) to raise the raising case. (2) It is configured to project outward.

Then, on the rear side of the front case (2a), the rear case (2b)
Multiple mating pins (12) project toward the rear case
The fitting pin (12) is fitted inside (2b), and both cases (2
A plurality of bosses (13) for keeping a predetermined space between a) and (2b) are provided so as to project toward the front case (2a) side. or,
A portion of the rear case (2b) on the opposite side of the raising action path has a structure in which a part is cut out, and from the opening portion (A),
It is configured to discharge mud, weeds, etc. scraped by the raising claws (4).

A small-diameter recess (14) is formed on the outer peripheral surface of the fitting pin (12) on the free end side.
The fitting pin (12) is inserted into the boss (13), and the spring wire (15) provided on the rear surface side of the rear case (2b) is inserted into the recess (14). The fitting pin (12) is prevented from coming off by being engaged with.

The spring wire (15) is, as shown in FIGS. 3 and 4,
On the rear surface (16) of the rear case (2b), the fitting pins (12) extend in the vertical direction over the respective fitting portions, and are attached to the rear surface (16) by a fixing member (17). It is fixed. Then, at the midway of the extension, detent portions (19) and (20) that are bent and shaped in a V shape in opposite directions are provided to prevent rotation around the axis (P).

The spring member (15) has its upper and lower end portions elastically deformable along the rear surface (16) and is artificially formed by using a handle portion (18) which is bent so as to project rearward. It is configured so that it can be elastically deformed to be engaged with and disengaged from the recess (14) of the fitting pin (12).

An inclined guide surface is provided at the tip of the fitting pin (12) to facilitate insertion and insertion into the boss (13).
Formed (21).

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a stem culm raising device according to the present invention. Fig. 1 is a front view, Fig. 2 is a sectional view taken along the line II-II of Fig. 1,
FIG. 3 is a rear view of the spring wire arranging portion, and FIG. 4 is an enlarged sectional view of a main portion. (2) …… Raising case, (2a) …… Front side case part, (2
b) ... rear side case part, (3) ... endless chain, (4) ...
… Raised claw, (12) …… Mating pin, (13) …… Boss part, (14)…
… Concave, (15) …… Spring wire.

Claims (1)

[Scope of utility model registration request] 1. A front case portion (2a) and a rear case portion
(2b) and a case (2) which is stretched inside the endless chain (3), a plurality of stem culm raising claws (4) are pivotally attached A plurality of fitting pins (12) toward the rear side in the front side case portion (2a).
Projecting, and the fitting pin (12) on the rear side case part (2b).
Has a plurality of bosses (13) for fitting in and holding a space between the case parts (2a), (2b), and has recesses on the free end side of each of the fitting pins (12). (14) is formed, on the rear surface of the rear side case portion (2b), a spring wire (15) elastically deformable along the surface is provided over each pin fitting portion,
The spring wire rod (15) is bent in a direction opposite to each other in the extension part of the spring wire rod (15), and the rotation prevention parts (19) and (20) are prevented from rotating around the shaft core. 15) is each recess
A stem culm raising device configured to engage with (14) and prevent the respective fitting pins (12) from being pulled out.