JPH0728316U - Cutting blade mounting device - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is to provide a cutting blade attachment device that can be easily and surely attached to an attachment work. [Structure] A mowing frame is composed of a horizontal frame and a plurality of vertical frames that extend forward from the horizontal frame at intervals from the horizontal frame, and a cutting blade having reciprocating blades attached to the lower part of these vertical frames. A blade pedestal is screwed, and a supporting member having a locking portion is fixed to the vertical frames on both sides to hang it down, and a mounting member extending rearward and rearward of the cutting blade pedestal. The cutting blade mounting device is characterized in that a cutting portion is provided so as to project, and an engaging portion that engages with and disengages from a locking portion of the support member is provided at a rear portion of the mounting member.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cutting blade attachment device for a reaper that widely cuts grain culm, grass, lawn or the like.

[0002]

[Prior art]

 Conventionally, a mowing frame is composed of a horizontal frame and a plurality of vertical frames that extend laterally from the horizontal frame, and a cutting blade equipped with a reciprocating cutting blade is attached to the lower part of these vertical frames. A reaper having a pedestal screwed on to lower the reaper height, for example, a blade mounting device for a combine reaper is already known.

[0003]

[Problems to be solved by the device]

 The cutting blade of the known cutting blade mounting device has a large number of knives piled up and down attached to a cutting blade cradle that is long in the lateral direction, so that the overall weight is extremely large. When attaching the cutting blade to the lower surface of the vertical frame of the mowing frame in order to reduce the cutting height, raise the cutting blade pedestal, which is extremely heavy as described above, and insert the mounting hole into the mounting hole of the vertical frame. It was extremely difficult to perform the screwing work in alignment with the position.

[0004]

[Means for Solving the Problems]

 According to the present invention, a mowing frame is composed of a horizontal frame and a plurality of vertical frames extending laterally forward from the horizontal frame, and a reciprocating blade is attached to the lower part of these vertical frames. The cutting blade pedestal is screwed, and the supporting members having the locking parts are fixed to the vertical frames on both sides to hang it down, and the cutting blade pedestal is extended rearward to the rear portion. The above-mentioned problems are solved by projecting a member and providing an engaging portion that engages with and disengages with the locking portion of the supporting member at the rear portion of the mounting member.

[0005]

[Operation] When a plurality of knives piled up and down are screwed onto the lower surface of the vertical frame of the cutting frame when the cutting blade mounted on the cutting blade support which is long in the lateral direction is screwed, the rear part of the attachment member on one side is attached to the end on that side. Of the supporting member hanging from the vertical frame at the end, and the rear part of the mounting member on the other side also engages at the locking portion of the supporting member hanging from the vertical frame at the end on that side, Then, when the front part (cutting blade side) is lifted with the rear part being supported, the mounting holes of the cutting blade pedestal are easily aligned with the mounting holes of the bottom plate of the mounting part on the vertical frame and overlap. Insert the bolt in this state and tighten the nut. Then, attach to the vertical frame on the other side. In this state, the intermediate vertical frame is attached. When removing the bolt, even if the bolt is pulled out, the cutting blade pedestal is supported by the vertical frame through the mounting member and the supporting member, so it does not fall accidentally and is safe. In addition, since the mounting member extends rearward from the rear surface of the cutting blade pedestal during the mowing operation, there is no obstacle.

[0006]

【Example】

 An embodiment of the present invention will be described with reference to the combine harvester shown in the drawings. The harvest frame 1 is composed of a horizontal frame 2 and a plurality of vertical frames 3 ... Although not shown in the figure, a vegetation body is attached to the front ends of the vertical frames 3 ... In the same manner as the conventional one, and the portion immediately after that is provided to support the lower part of the grain culm raising body.

The cutting blade 5 is composed of an upper blade 7 in which a number of knives are connected by a knife bar 6 and a lower blade 8. The upper blade 7 and the lower blade 8 both reciprocate in the left-right direction. It is mounted on a long blade supporting base 10 that extends over the entire cutting width, and a pair of knife heads 11 and 11 are projected rearward from the upper and lower knife bars 6 and a pair of shafts are pivotally supported at their rear portions. Rollers pivotally supported at the front ends of the bell cranks 12 and 12 are fitted in the recesses at the rear of the neck heads 11 and 11 to be interlocked and connected, and when viewed from the front, the shaft support portion of the bell crank 12 on the right side is connected to the right side. The roller 13 axially supported by the protrusion extending to the right is fitted into the hole 15 of the arm protruding from the right side bell crank 12 to the left side. Reverse when moving back and forth The upper blade 7 and the lower blade 8 reciprocate left and right in opposite directions.

Next, the attachment device for the cutting blades 5 will be described. Each vertical frame 3 is welded to the lower part of each vertical frame 3 by an upwardly U-shaped mounting metal 16 having a mounting hole in the lower part. A mounting hole is also formed in a portion of the base 10 corresponding to the mounting hole of the mounting metal 16 ..., and the cutting blade receiving base 10 has the collar 17 interposed as shown in FIG. Then, the nut 19 is inserted into the collar 17 and the upper and lower mounting holes, and then the nut 19 is tightened. By selecting the collars 17 having different lengths, the height of the cutting blade can be changed to adjust the cutting height.

Immediately after the portions of the vertical frames 3 and 3 at the left and right ends where the mounting metal 16 is fixed, a supporting member 20 is welded and hung down. The upper end of the supporting member 20 has a vertical frame. 3 has a bent portion that overlaps with each other, and two engaging portions 21 and 21 formed of upward hook-shaped grooves are provided at upper and lower two positions on the front edge, respectively. On the rear surface of the rear portion that is bent downward, a plate-shaped mounting member 22 with the plate surface facing rearward in the up and down direction is fixed slightly upward and rearward. At the rear end portion, an engaging portion 23, which is composed of a lateral pin and which selectively fits with any one of the engaging portions 21, 1, is provided in a protruding manner.

In the above-described cutting device shown in FIG. 2, when the cutting blade 5 is mounted lower than the vertical frames 3 and 3, the cutting blade holder 10 is held and the engaging portion 23 of the mounting member 22 on one side is held. When the engaging portion 21 under the supporting member 20 corresponding thereto is engaged, and the engaging portion 23 of the mounting member 22 on the other side also engages with the corresponding engaging portion 21 under the supporting member 20, The cutting blade 5 is in a hanging posture. When the front part of the cutting blade 5 is lifted from this state, the rear part is rotatably supported, so that it can be easily lifted to move forward and backward and laterally of the mounting hole of the cutting blade receiving stand 10 with respect to the mounting hole of the mounting metal 16. Positioning is possible, and in this state, the bolts 18 are inserted into the above holes and the collar 17 from below with the collar 17 interposed between the one side mounting metal 16 and the cutting blade pedestal 10 as shown in FIG. Then tighten with the nut 19. Then, the collar 17 is also inserted into the attachment portion on the other side of the cutting blade 5 in the same manner as described above, and the screwing operation is performed. After that, the collar 17 is attached to the attachment metal 16 of the intermediate vertical frame 3 and Perform the screwing operation. When the mowing work is performed, the mounting member 22 is substantially horizontal or slightly upward, so that straw dust and weeds do not become entangled.

When the cutting blade 5 is mounted at a high position (position close to the vertical frame 3 ...), the engaging portions 23, 23 made of the left and right pins are mounted on the left and right support members 20, 20. After being engaged with the engaging portions 21 and 21, respectively, and then rotated upward around the engaging portion 23, the collars 17 ... It is superposed on the lower surface, and bolts 18 ... Are inserted from below and screwed onto the mounting metal 16.

[0012]

[Effect of device]

 According to the present invention, a mowing frame 1 is composed of a horizontal frame 2 and a plurality of vertical frames 3 extending forward from the horizontal frame at a distance from each other, and a reciprocating cutting blade is provided under the vertical frames 3. The cutting blade pedestal 10 to which 5 is attached is screwed, and the supporting members 20 having locking portions are fixed and hung down on the vertical frames 3 on both sides, and the rear portion of the cutting blade pedestal 10 is fixed. Since the mounting member 22 that extends rearward is provided on the rear side of the mounting member 22 and the engaging portion 23 that engages with and disengages from the locking portion of the support member 20 is provided at the rear portion of the mounting member 22, the cutting blade support 10 When the blades are attached to the vertical frame 3, ..., the cutting blade pedestal 10 is equipped with a large number of knives and their associated components, which makes it extremely heavy. By engaging the engaging portions of the with the locking portions of the support member 20 in sequence, the cutting is performed in the temporarily attached state. The mounting hole of the pedestal 10 can be easily aligned with the mounting hole on the vertical frame 3 side, and when the cutting blade pedestal 10 is lifted to be screwed, the rear part is supported so that it can be easily lifted. You can perform the mounting operation. Further, when the cutting blade is replaced with the cutting device lifted, even if the vertical frame 3 is unscrewed, the cutting blade pedestal 10 to which the cutting blade 5 is attached does not drop, which is safe. .

[Brief description of drawings]

FIG. 1 is a plan view in which a part of a reaping device is omitted.

FIG. 2 is a view on arrow AA of FIG.

FIG. 3B of FIG. 1 with the cutting blade set to a low position
FIG.

FIG. 4B of FIG. 1 with the cutting blade set to a high position
FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Mowing frame 2 Horizontal frame 3 Vertical frame 5 Cutting blade 10 Cutting blade pedestal 20 Support member 21 Locking portion 22 Mounting member 23 Engaging portion

Claims (1)

[Scope of utility model registration request] 1. A mowing frame (1) is composed of a horizontal frame (2) and a plurality of vertical frames (3) extending forward from the horizontal frame at a distance from the horizontal frame (2). The cutting blade pedestal 10 to which the blade 5 is attached is screwed, and the supporting members 20 having the locking portions are fixed and hung down on the vertical frames 3 on both sides, and the cutting blade pedestal 10 is attached.
A mounting member 22 extending rearward is provided in a protruding manner on the rear part of the
A cutting blade mounting device, characterized in that an engaging portion (23) which engages and disengages with an engaging portion of the support member is provided at a rear portion of the mounting member (22).