JPS6126422Y2 - - Google Patents

Description

Detailed Description of the Invention The present invention aims to provide an edge one-touch mechanism having a novel configuration.

Since graders are often used to remove snow from roads in cold regions, it takes time to replace cutting edges, and there is a concern that problems may occur due to the use of vibrating tools.

The present invention is intended to fully solve these problems, and one embodiment thereof will be described in detail below with reference to the drawings.

1 is the edge one touch mechanism of the present invention. The configuration is such that a parallel link 3 is arranged on the back side of the blade 2 in parallel with the blade and can move forward and backward with respect to the blade 2, and the parallel link has a direction perpendicular to the longitudinal direction of the parallel link. An appropriate number of cutting bolts 4 having a bolt head 4A at the tip thereof protrude from the blade 2 are installed, and the bolt head 4A is inserted into the cutting edge 5 to be attached to the blade 2. The large hole 5A that can be formed is opened, and the large hole 5A is opened.
A is connected with a small hole 5B into which the bolt head 4A is engaged. In addition to the above-mentioned structure, the cutting edge has a U-shaped groove 5C formed from the upper edge of the cutting edge 5 in which the bolt head 4A can be locked, as shown in FIG. It may be 5'. Furthermore, even if the large hole portion 5A and the small hole portion 5B are arranged near the upper edge of the cutting edge 5 as shown in FIG. 5, they are arranged along the center line in the longitudinal direction of the cutting edge as shown in FIG. may be formed. Further, reference numeral 6 denotes an advancing/retracting device for advancing and retracting the parallel link 3 with respect to the blade 2, and a cam mechanism 6B is connected to hydraulic cylinders 6A (4 cylinders), one end of which is pivotally connected to the blade 2 side.
The blade is connected to the parallel link via the blade. Then, this hydraulic cylinder operates a monolever S/W installed near the driver's seat and the circle, and when the hydraulic cylinder contracts, the cutting bolt moves rearward and tightens the cutting edge (Figure 3). Furthermore, when the hydraulic cylinder extends, the cutting bolt moves forward and the cutting edge loosens (Figure 4). The cutting bolt is configured to be able to move 30mm forward and backward.

Since the proposed proposal is structured as described above,
By moving the cutting bolt back and forth by operating from the driver's seat, the cutting edge can be reliably replaced with a so-called one-touch operation.
That is, A. When attaching the blade 2 to the edge 5, the bolt is moved forward, the head 4A of the bolt 4 is inserted through the large hole 5A of the edge, and the edge is locked to the bolt. After that, slide this edge laterally and insert the head 4A into the small hole 5.
When the bolt is placed in position B and the bolt is moved back, the edge is tightened and fixed to the blade.

B When removing the edge 5, it can be done extremely easily by performing the operation in reverse to A above.

C Furthermore, in the case of the cutting edge shown in FIG. 7, in addition to the above-mentioned effects, when the edge 5 becomes worn, it can be reversed and both the upper and lower end surfaces can be used.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a partially cutaway plan view, Fig. 2 is a sectional view taken along line A-A of the same, and Figs. 3 and 4 are diagrams illustrating the operation. FIG. 5 is an enlarged front view of the main part showing the relationship between the blade and cutting edge, FIG. 6 is an enlarged view of the main part of the same as above, and FIG. 7 is an enlarged front view of the main part of another embodiment. 8 is a cross-sectional view taken along the line B--B in FIG. 6, and FIG. 9 is an enlarged front view of a main part showing another embodiment of the cutting edge. 1... Edge one-touch mechanism, 2... Blade, 3... Parallel link, 4... Cutting bolt, 5... Cutting edge.

Claims (1)

[Scope of utility model registration request] A parallel link 3 arranged parallel to the blade 2 on the back side of the blade 2 is configured to be able to move forward and backward with respect to the blade 2, and the parallel link has a bolt at the tip and has a direction perpendicular to the longitudinal direction of the parallel link. An appropriate number of cutting bolts 4 whose heads 4A protrude from the blade 2 are installed, and the cutting edge 5 to be attached to the blade 2 has a large hole 5A into which the bolt head 4A can be inserted.
The edge one touch mechanism is characterized in that a small hole 5B is opened and the large hole 5A is connected with a small hole 5B in which the bolt head 4A is engaged.