JPH067424U - Stem culm raising device - Google Patents

Abstract

(57) [Abstract] [Purpose] The cover case is made lighter and easier to handle without improving the mounting structure of the case body and cover case, and without requiring any means to increase the rigidity of the cover case. (EN) Provided is a stem culm raising device capable of avoiding deformation caused by a raising load. [Structure] Engagement portion 22 engaged and disengaged by relative movement of cover case 16 with respect to case body 9 in a direction along a separation surface.
Is provided on the inner surface of the cover case 16, the engaging rail 20 for the engaging portion 22 is provided on the standing rail 15, and the cover is provided in the coupled state where the engaging portion 22 and the engaging rib 20 are engaged. The fixing mechanism 27 is provided at one place for preventing the case 16 from moving in the direction along the separation surface with respect to the case body 9, and the fixing mechanism 27 is configured to be released from the front surface of the cover case 16.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a stem culm raising device used as a combine or a binder.

[0002]

[Prior art]

 Heretofore, as a stem culm raising device of this type, a drive sprocket for winding a chain in which a raising claw is rotatably pivotally mounted and a driven roller are mounted on the upper and lower sides, respectively, and the raising mechanism is used. It consists of a case body in which a standing rail that raises and oscillates the claws is raised and placed and fixed along the path, and a cover case that is removable from the case body while covering the front side of the case body. It is known that the above can be inserted into and removed from the case body along the separation surface between the cover case and the case body (see Japanese Utility Model Laid-Open No. 3-108327).

[0003]

[Problems to be solved by the device]

 According to the above conventional configuration, the cover case can be easily attached and detached, but the insertion and fixing mechanism between the case body and the cover case does not interfere with the rotation of the chain in which the raising claw is pivotally attached. Since it was provided in the center part of the width direction of the main body, the forward component force of the raising resistance received when the raising claw raises the crop and operates, the outer peripheral edge of the cover case is generated via the raising claw. When the cover case is inserted, the cover case tends to be turned up around the fixing mechanism part as a fulcrum, and the cover case may be deformed. As a countermeasure, it may be possible to use a thick material for the cover case or provide a reinforcing member to the cover case to increase the rigidity of the cover case, but other problems such as an increase in the weight of the cover case, an increase in cost, etc. However, there was a problem in practical use. The present invention has been made in view of the above circumstances, and is light in weight and easy to handle without improving the mounting structure of the case body and the cover case and requiring a means for particularly increasing the rigidity of the cover case. It is an object of the present invention to provide a stem-culm raising device that can prevent the cover case from being raised and deformed by a load.

[0004]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is characterized in that, in the stem culm raising device described at the beginning, an engaging portion that is engaged and disengaged by relative movement of the cover case in the direction along the separation surface with respect to the case body. The engagement case is provided separately on the inner surface of the cover case and the upright rail, and along the separation surface with respect to the case body of the cover case in the coupled state in which the engagement section and the engagement case are engaged. It has a single fixing mechanism that prevents movement in the direction, and this fixing mechanism can be released from the front of the cover case. Its function and effect are as follows.

[0005]

[Action]

 According to the above structure, since the engaging structure is provided on the upright rail near the outer peripheral edge of the cover case, the forward load component force acting on the outer peripheral edge of the cover case via the raising claw is involved. The moment to bend the cover case around the combined structure is smaller than that in the conventional case where the combined structure is in the center of the width of the cover case, and the cover case is less likely to be deformed. Then, after the fixing mechanism at one location is operated from the front surface of the cover case to allow relative movement in the direction along the separation surface of the cover case with respect to the case body, the cover case can be removed from the case body.

[0006]

[Effect of device]

 As will be apparent from the above description, the present invention is a modification of the engaging structure when the cover case can be easily attached to and detached from the case body in an engaging manner. Even if no measures are taken to increase the rigidity of the cover case, it is possible to avoid the cover case from being deformed so that it will be flipped up forward under load, making the cover case lightweight and easy to handle. The functions of this kind of attachment / detachment structure can be further enhanced.

[0007]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the front part of a combine equipped with a stem-culm raising device according to the present invention. This combine harvester is a device that raises a plurality of stem culms that cause planted stem culms (grain culms), a mowing device 2 that cuts the stalks that have been raised, and conveys the cut stalks to the feed chain 3. The rear cutting device 5 is provided with a mowing unit 5, which is vertically swingable. On the lateral outer side of the stem culm raising device 2 located on the most uncut side (left side of the machine body), a locking claw 7 pivotally connected to a vertically driven chain 6 is projected upwardly. A forced weeding device 8 is provided to rotate and rotate toward and to separate the culm to be cut and the uncut culm. As shown in FIG. 2, the stem culm raising device 2 includes a case body 9 located at the rear of the machine body, a drive sprocket 10 and a tension sprocket 11 arranged on the upper part thereof, and a driven roller arranged on the lower part of the case body 9. 12, the drive sprocket 10, the tension sprocket 11, and the chain 13 wound around the driven roller 12, the raising claws 14 pivotally connected to the chain 13 at a predetermined pitch, and the upward raising path. It is composed of a standing rail 15 that guides the raising claw 14 to a predetermined raising posture and a cover case 16 that is detachably connected to the front surface of the case body 9. The drive sprocket 10 is interlocked with a shaft transmission mechanism 17 provided at the back of the stem and culm raising device 2, and the power branched from the shaft transmission mechanism 17 is used as an upper drive sprocket 18 of the forced weeding device 8. It is configured to be transmitted to.

As shown in FIG. 4, the upright rail 15 is formed by joining two pressed materials into a tubular shape, and is fixed at a position near the raising path side of the inner surface of the case body 9. is there. Then, rectangular engaging anches 20 are punched out at a plurality of upper and lower locations (three locations in the embodiment) on the front surface of the standing rail 15, and the engagement is performed on the band plate member 21 fixed to the inner surface of the cover case 16. A claw-shaped engaging portion 22 corresponding to the hole 17 is cut out and formed. In addition, a reinforcing member 23 having an L-shaped cross section is fixed along the edge on the return path side of the inner surface of the case body 9, and a side cover 24 having a U-shaped cross section along the edge on the return path side of the inner surface of the cover case 16. The side walls of the side cover 24 are fixed, the engaging holes 25 are opened at the top and bottom of the side cover 24, and the corresponding claw-shaped engaging portions 26 are cut out from the reinforcing member 23. The engagement groove 20 and the engagement portion 22, and the engagement groove 25 and the engagement portion 26 are fitted to each other by moving the cover case 16 upward along the separation surface with respect to the case body 9. Then, the shapes and the protruding directions of the engaging portions 22 and 26 are set so that the cover case 16 is prevented from moving leftward and rightward with respect to the case body 9 and moving forward. Further, the fixing mechanism 27 for fixing the cover case 16 engaged and connected to the case body 9 as described above is provided on the shaft supporting portion of the driven roller 12. That is, the driven roller 12 is loosely fitted and supported on the support shaft 28 which is vertically fixed on the inner surface of the case body 9, and the screw portion formed at the tip of the support shaft 28 is provided on the lower portion of the cover case 16 so as to move up and down. The cover case 16 is inserted through the long hole 29 and the protruding screw portion is fastened with a nut 30 to fix the cover case 16 which is raised and engaged and connected as described above. When it is necessary to remove the cover case 16 for maintenance or the like, after removing the nut 30, the cover case 16 is pulled along the separation surface with respect to the case main body 9 to remove the engagement holes 20, 25. The engagement between the engaging portions 22 and 26 may be released.

The object for providing the engaging holes 20 and 25 and the engaging portions 22 and 26 may be configured in the opposite manner to the embodiment, and the engaging portions 22 and 26 may be provided with a head having a large diameter. In addition to forming a pin shape, the engagement holes 20 and 25 are configured as dharma holes that connect a large diameter hole through which the large diameter head can pass and a small diameter hole through which only the pin portion can pass. , 25 and the shapes of the engaging portions 22, 26 can be set arbitrarily. In contrast to the above, the cover case 16 is pulled along the separation surface with respect to the case main body 9 so that the engagement holes 20 and 25 and the engagement portions 22 and 26 are engaged with each other. You can also

Further, although reference numerals are given in the claims of the utility model for convenience of comparison with the drawings, the present invention is not limited to the configuration of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a side view showing a front portion of a combine equipped with a stem culm raising device according to the present invention.

FIG. 2 is a partially cutaway front view showing a transmission structure of a stem culm raising device and a forced weeding device.

FIG. 3 is a front view of the inside of the stem culm raising device developed.

FIG. 4 is a cross-sectional plan view of a stem culm raising device.

FIG. 5 is a cross-sectional plan view of a driven roller portion of the stem-culm raising device.

6 is a sectional view taken along line AA in FIG.

7 is a sectional view taken along line BB in FIG.

[Explanation of symbols]

 9 Case Main Body 10 Drive Sprocket 12 Driven Roller 13 Chain 14 Raising Claw 15 Standing Rail 16 Cover Case 20 Engagement An 22 Engagement Part 27 Fixing Mechanism

Claims (1)

[Scope of utility model registration request] 1. A drive sprocket (10) for winding a chain (13) in which a pull-up claw (14) is rotatably pivotally attached.
And a driven roller (12), which are vertically mounted, respectively, and a case main body (9) in which a standing rail (15) for standing and swinging the raising claw (14) is raised and arranged and fixed along a path, A cover case (1) which is detachably attached to the case body (9) in a state of covering the front side of the case body (9).
In the stem-and-culm raising device constituted by 6) and 6), an engaging portion (22) and an engaging hole (20) which are engaged and disengaged by relative movement of the cover case (16) with respect to the case body (9) in a direction along the separation surface. ) And the cover case (1
The cover case (16) is mounted on the inner surface of (6) and the upright rail (15) separately, and in a combined state in which the engaging portion (22) and the engaging hole (20) are engaged. A fixing mechanism (27) is provided at one place to prevent the body (9) from moving in the direction along the separation surface, and
A stem-culm raising device configured such that the fixing mechanism (27) can be released from the front surface of the cover case (16).