JPH0566442B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an improvement of a self-propelled snow removal machine equipped with a blade.

<Prior Art and Problems> Self-propelled snow removal machines such as snow removal trucks only have a cutting edge attached to the lower part of the blade with bolts.

Therefore, although the cutting edge is replaceable, since it is a bolt-tightening type, there are problems in that it takes a long time to replace the edge, the places where it can be replaced are limited, and it is highly dangerous.

<Means for Solving the Problems> The present invention has been made by focusing on the above-mentioned problems of the prior art.The present invention is made by focusing on the problems of the prior art described above. The time required for exchanging the edge,
The purpose is to provide a safe snow removal machine that eliminates the limitations of replacement locations and dangers.

The means for achieving this purpose is to restrain the cutting edge, which is detachably provided at the lower part of the blade, by a movable restraining piece and a fixed restraining piece.

<Function and Effect> Since the present invention comprises the above means, if the cutting edge is restrained by the movable restraining piece and the fixed restraining piece prior to snow removal work, the cutting edge will be firmly attached, and the movable restraining piece will not be used during the edge replacement work. By releasing the edge, you can easily replace the edge.
Replacement work can proceed safely on site.

<Embodiment> An embodiment of the present invention will be described in the case of a snow removal truck with reference to the drawings.

A blade 3 is movably mounted on the lower part of a vehicle body 1 of a self-propelled vehicle by a well-known attachment means. The cutting edge 2 is detachably attached by being sandwiched between a suitable number of movable restraining pieces 6 arranged in parallel at the lower part of the blade 3 and the front surface of the lower part of the blade 3. Since the cutting edge 2 is the member to which the greatest load is applied during snow removal work, it is necessary to ensure that it is firmly attached. Therefore, the upper side of the cutting edge 2 is held down toward the blade 3 by a movable restraining piece 6 and a fixed restraining piece 7 to prevent it from rattling or bouncing during snow removal work, and is firmly attached.
Blade 3 has cutting edge 2 at the bottom of the front.
A pinch insertion space (not shown) is opened for the purpose, and the fixed restraining pieces 7 are attached and fixed, and the fixed restraining pieces 7 are arranged alternately with the movable restraining pieces 6 in the length direction of the blade itself, so that the blade itself and the movable restraining pieces 7 are arranged alternately. The upper side of the cutting edge 2, which is inserted between the cutting edge 2 and the blade 6 and between the blade itself and the fixing restraining piece 7 (the above-mentioned clamping space), is held down by both the restraining pieces 6 and 7 toward the blade itself. Configure it so that it can be done.

The bracket 4 is a member for attaching the movable restraint piece 6, and as shown in the third and fourth figures, the upper part is attached to the rear surface of the lower part of the blade 3 with a bolt 5, and the mounting part of the movable restraint piece 6 is attached to the center part. It penetrates from the front side to the rear side, and the lower part is detachably attached to the rear surface of the lower part of the blade with bolts 5. The movable restraining piece 6 cooperates with an appropriate number (two in FIG. 2) of fixed restraining pieces 7 to suppress the upper side of the cutting edge 2 toward the blade 3, thereby preventing the cutting edge 2 from wobbling or bouncing. This prevents the product from sagging and provides a strong mounting condition. The movable restraining piece 6 connects the mounting part to the blade 3.
and the center of the bracket 4,
On the back surface of the blade 3, it is connected to the tip of a lateral hydraulic mechanism 8 installed on the side of the bracket 4 through an intermediate joint 9 and an eccentric pin 10. The details of the continuous connection structure between the movable restraining piece 6 and the horizontal hydraulic mechanism 8 are as follows: An operating hole 6' is opened vertically in the mounting portion of the movable restraining piece 6, and a length of the eccentric pin 10 is inserted into the operating hole. The eccentric pin 10 is arranged vertically by inserting the eccentric large diameter portion 10' formed at the center of the side, and the other end of the intermediate joint 9 is fixed to the upper end of the eccentric pin 10 with a key. The tip of the piston rod of the horizontal hydraulic mechanism 8 is connected to one end of the joint, and as the piston rod of the hydraulic mechanism expands and contracts, the eccentric pin 10 rotates and the eccentric large diameter portion 10' moves eccentrically. The movable restraining piece 6 is made to reciprocate in the longitudinal direction of the self-propelled vehicle, and the cutting edge 2 is restrained toward the blade 3 and conversely released. Movable restraining piece 6
is operated by contracting the piston rod of the hydraulic mechanism 8, which causes the eccentric pin 10 to rotate via the intermediate joint 9, and the eccentric movement of the eccentric large diameter portion 10' of the pin causes the movable restraint piece 6 to advance. , the restraining piece is separated from the cutting edge 2, and the edge is released from the restraining state. In this released state, the cutting edge 2 is attached to and detached from the blade 3. In addition, during work, by extending the piston rod of the hydraulic mechanism 8 as shown in Figure 6, the eccentric pin 10 is rotated via the intermediate joint 9, and the eccentric movement of the large eccentric diameter portion 10' of the pin is caused by the eccentric movement of the eccentric pin 10. The movable restraining piece 6 is moved backward, and the cutting edge 2 is restrained by its claw part.

[Brief explanation of the drawing]

FIG. 1 is a side view schematically showing the snow removal machine of the present invention;
Fig. 2 is a schematic front view of the main part, Fig. 3 is an enlarged front view showing a part of the main part, Fig. 4 is a longitudinal cross-sectional side view taken along line A-A in Fig. 3, and Figs. 5 and 6. is B in Figure 3.
The action of the cutting edge is shown in an enlarged sectional view taken along line -B. In the figure, 1... Vehicle body, 2... Cutting edge, 3... Blade, 6... Movable restraint piece, 7...
Fixed restraint piece.

Claims (1)

[Claims] 1. A movable deterrent piece for the cutting edge and a fixed deterrent piece for the cutting edge are arranged side by side at the lower front of the blade installed on the body of the self-propelled vehicle, and a bracket for the movable deterrent piece is provided on the back side of the lower part of the blade.
In addition, a horizontal hydraulic mechanism is equipped on the side of the bracket on the back of the blade, and the attachment part of the movable restraint piece is passed through the lower part of the blade and the bracket from the front side to the rear side, and the attachment part of the movable restraint piece is opened vertically. The large eccentric diameter part of the vertical eccentric pin is inserted into the hole, and the tip of the piston rod of the horizontal hydraulic mechanism is connected to one end of the intermediate joint whose other end is attached to the upper end of the eccentric pin. A snow removal machine in which the upper side of the cutting edge is sandwiched between the front lower part of the blade, a movable restraint piece, and a fixed restraint piece.