JPH0543623Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to a cutting blade device and can be used in grain culm reaping devices such as combines and binders.

Conventional technology and problems to be solved by the invention In a clipper-type cutting blade device, a movable blade with a guiding body integrally protruding from the top surface of a fixed receiving blade is provided so as to be slidable back and forth. A blade pushing body is brought into sliding contact with the upper surfaces of the body and the movable blade to press them. In this type of configuration, when the blade pusher, guide, etc. wear out,
A gap is likely to occur between the guide body and the blade pushing body, making it difficult to maintain stable blade pushing and guiding.

Means for solving the problem This invention provides a cutting blade device configured in such a way that a movable blade 2 with a guide body 3 protruding upward is superimposed on the upper surface of a receiving blade 1 in the form of a clipper so that it can slide back and forth freely, a blade pressing body 5 which presses the movable blade 2 from above is connected to a resilient U-shaped pressing arm 9, the rear side 6 of the blade pressing body 5 and the front side 4 of the guide body 3 are formed in a plane approximately perpendicular to the upper surface of the receiving blade 1 to provide a sliding guide, and a guide piece 16 is positioned on the rear side of the guide body 3 to provide a sliding guide.

Functions and Effects of the Invention The movable blade 2 is driven to reciprocate and slide along the upper surface of the receiving blade 1, but the upper surface is pressed and guided by the lower surface of the blade pusher 5, and the movable blade 2 The front side surface 4 of the guide body 3 is slidably guided by the rear side surface 6 of the blade pusher body 5. During such a guiding action, the blade pusher 5
Since the movable blade 2 is guided in sliding contact with the lower surface and the rear surface 6, it is unlikely that it will float up to the receiving blade 2 surface and become tilted back and forth, and the lower surface of the blade pusher 5 will be Even if worn out, the front and rear sides 4, 6 between the guide body 3
is hard to wear out, so even if the blade pusher 5 gradually descends to the upper surface of the movable blade 2 as it wears out, the blade pushing and guiding effects of the blade pusher 5 will not decrease, and the grain culm will remain intact for a long period of time. Good cutting effect can be maintained.

Embodiment In the illustrated example, the receiving blade 1 and the movable blade 2 are in the form of a clipper, and the receiving blade 1 is integrally attached with screws 8 to a mounting plate 7 that is attached to the machine body. A blade presser 5 is disposed on the mounting plate 7 at an appropriate position in the width direction of the cutting blade, and a presser arm 9 having an elastic side surface and a U-shape is provided.
The base of the blade is attached with a bolt 10 and a nut 11, and by tightening the nut 11, the blade holding force can be adjusted. The front end of the presser arm 9 extends above the front and rear intermediate portions of the movable blade 2, and the blade presser 5 is integrally attached to the lower side thereof with screws 12. The blade presser body 5 forms a presser surface 13 parallel to the upper surface of the movable blade 2 and a rear side surface 6 substantially perpendicular to the presser surface 13 over an appropriate width direction of the cutting blade.

The movable blade 2 has a guide body 3 integrally attached to the rear part of the upper surface with screws 14, and the triangular blades of the movable blade 2 are integrally connected in series in the width direction. is formed substantially perpendicular to the upper surface of the movable blade 2, and the rear side surface 6 of the blade pusher 5 is formed parallel to the cutting blade width direction.

An appropriate distance 15 is formed between the upper surface of the guide body 3 of the movable blade 2 and the lower surface of the presser arm 9. 16
A guide piece is used to guide the rear end of the movable blade 2 to prevent it from floating, and is attached to the mounting plate 7 with the bolts 10 and 17 mentioned above. Reference numeral 18 denotes a drive arm attached to the center of the movable blade 2, which is configured to be driven so as to reciprocate in the cutting blade width direction A by rotation of a crank mechanism or the like.

[Brief explanation of the drawing]

The figures show one embodiment of this invention, with FIG. 1 being a side sectional view and FIG. 2 being a partial plan view. In the figure, reference numeral 1 indicates a receiving blade, 2 a movable blade, 3 a guide body, 4 a front side surface, 5 a blade pusher body, and 6 a rear side surface.

Claims (1)

[Scope of utility model registration request] A movable blade 2 with a guide body 3 projecting upward is superimposed on the upper surface of a clipper-shaped receiving blade 1 so as to be able to slide back and forth, and a blade pusher 5 presses the movable blade 2 from the upper surface.
is connected to an elastic U-shaped presser arm 9, and the rear side 6 of the blade presser 5 and the guide body 3 are connected to each other.
The front side surface 4 of the receiving blade 1 is formed in a plane substantially perpendicular to the upper surface of the receiving blade 1 for sliding guidance, and a guide piece 16 is positioned on the rear side of the guide body 3 for sliding guidance. A cutting blade device configured to