JPS5948508A - Link mechanism for supporting snow removing apparatus of snow removing car - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support link structure for a snow removal device such as an auger or a prower of a snow removal vehicle.

Traditionally, abatement devices such as auger and proa 1! As shown in Fig. 1, a snowplow equipped with F&1
T-Removed arm (link) 2.2v abatement jli3
Introduce a pin to the front of the plate body 3a of the snow removal device tl&k
One that can be raised and lowered freely is known.

By the way, when the snowplow 3 having this type of support arm (A-link) mechanism is run to perform snow removal, the running resistance caused by the stomach to the mouth + r tm of the snow removal device 1 or the tip tip In the conventional snowplow 3 as described above, the arm 20 is connected to the body 3a through the arms 2, 2 which are protruding from the front. Since the mounting position is on the 01τ plane of the lock body 3a, the above-mentioned moment becomes large.

If the abatement work continues with such a large moment force 1, as the abatement work progresses, the snowplow 3 will be positioned horizontally on the road surface as shown in Figure 4)2. There is a problem that the snow gradually climbs onto the snow and deteriorates the finish of the snow removal surface.

In addition, such a problem is particularly noticeable in the snow plow 3 where the crawler is stored as a running gear. 〇This invention is based on the above-mentioned back assembly and is T1, which is pivoted near the main center of the base end of the arm supporting the snow removal device and the The real moment caused by running resistance #-JA? Part 3 explains the invention in which the car body lifts up as follows by making the car body near the center of gravity using the drawings.
FIG. 10 shows an embodiment of the present invention, in which a snow truck is moved by a lO'd crawler 11, and is located inside the vehicle body 10a of this snow removal 7'It10. is pivoted near the center of gravity G by a spherical roller II bridge 14 shown in - (ijjJ) so as to be able to rotate vertically and horizontally. It is composed of plate-like arm brakes) 13c, 13c's rear and central parts connected by a connecting plate 15 and a connecting plate 16, and one army body 10rL/7) Four parts 1 formed near the center of gravity
Its base end 13b side is housed in the vehicle body 1na, and its one end 13a is provided at the front end of the vehicle body 1na.

Said spherical cape 1 holder 14, vehicle body le on both side walls of recess 10b
It is mounted near the center of gravity of a and is supported at the tip of a cut cross frame 17.17, with one end to the σrad prong 4 connected to the Insert the rod 14 into the hole 15aK in the center of the connecting plate 15.
Put one nut i R, 18 into one end of a, and
is pivotally mounted near the center of gravity of the vehicle body 10a.

Further, on the front surface 10c of the vehicle body 3oB and above the arm play) 13c, 13e, there are hydraulic cylinders 11, 19,
119 is rotatably bent downwards by pins 20 and 20, and the tip of the piston mid 19a of the hydraulic cylinder 19 is attached vertically to the arm plate 13c via the spherical bearing 21 and pin 211IL shown in FIG. Connected rotatably left and right, tJ, the above hydraulic cylinder 11 cylinder 19Q
By operating the arm 13, it is possible to raise and lower the arm 13 by a predetermined angle. Note that the hydraulic cylinders 19, 19 are controlled by a control device (not shown) in the snowplow 10, respectively, and are simultaneously operated as many as i.
The piston mid 19a has a structure that can be stirred.
The entrance and exit of lU'fi: Act 2) and the auger G 17) The tilt angle θ(l'; l C1[: (shown in l)
・Be able to play jj.

And the snow removal device 1 of the above-mentioned No. 13 niece 13a
Near the second part is a forked leg part 22a.

22 n f i, r The ring stopper 22 is
These 1IQ1 1! 22a, 22a meeting bin 23.23
and arm plate 1 piece 3 via bracket 24.24
c.

Take the needle 13c, move it up and down freely, and insert the concave side 11 of the needle 1-m 13 p:'2! It is mounted parallel to the direction of force. A stop rod 72b is erected at the center of the arm nut 22, and the upper end of the arm nut 22b is connected to the front surface 1 of the vehicle body 10.
One end of the stop rod 25 is passed through a non-inner frame 25 protruding from the stop rod 22, and this inner frame 25 regulates the bone transfer range of the stop rod 22b.

On the other hand, a nutop part 26 made of an elastic material such as a gono is fixed to the opening part of the four parts 30bf) of the vehicle body 10a, front part 10c, and filtration part 11 of the vehicle body 10a. In addition.

When the stop member 26 is rotated vertically around the spherical bearing 14, the stop member 26 is configured to move f! between the upper and lower sides of the arm 13. 'i 'jiIc (5
k lid at a predetermined position 1j of the opening of the recess 10b.
'l is fixed.

In order to perform snow removal work with the snowplow 1otc according to the present invention, the snow removal device 12 is lowered down and along the road surface using the hydraulic cylinder 19° 19 as shown in FIG. Portrait of Sakuso Jokezawa.

At this time, the point of action of the moment of rotation υ of the center of gravity G applied to the vehicle body I TI B by the snow will be the spherical bearing 14. Here, the mounting position of the spherical bearing 14 is near the center of gravity G of the vehicle body 10a υ; The position is υ from the front of the vehicle body 3a, which is the point of action of the moment around the center of gravity in a conventional snowplow.
0a(7) Since it is close to the center of gravity G, the moment generated around the center of gravity C of the vehicle body 10a is smaller than that of the conventional snowplow 3. Therefore, it is possible to prevent the front side of the snowplow vehicle 3 from lifting up, and to finish the snow removal surface parallel to the road surface.

〉, the point of application of the force of the hydraulic cylinder 19 that rotates the arm 13 (in this actual 1 m example, the spherical bearing 2) 1 and the arm 1
3 rotational fulcrum (in this example, the spherical 'i'l!1 holder 14
) is longer than conventional snow removal), so the hydraulic system 1
1 cylinder 19+i While the snow removal device F"t12 can be raised and lowered more easily than the conventional snow removal device 11, the hydraulic cylinder 11 cylinders 19 and 19 can be moved up and down, respectively.
It is possible to tilt the Saze C snow removal device 12 from side to side in the width direction (tilt angle θ). During snow removal, the snow removal device 12 is driven vertically and horizontally, but the stop rod 22
Since the movement range of the guide frame 25 is regulated by the guide frame 25, the guide frame 25 regulates the tilt angle θ within a predetermined range. I can do it.

Note that the arm stopper 2
The second stopper rod 22b swings in the front-back direction of the first stopper 10a, but the arm stopper 22t rotates around the pin 23 to keep the movement range of the stop rod 221) within the guide frame 25.

In addition, the stop member 261- is brought into contact with the side surface of the arm 13 to restrict the swinging of the arm 13 in the width direction of the snowplow 10. Of course, it cannot be applied to snowplows with a traveling device other than 11.

Due to the pivoted configuration, the point of action of the moment around the center of gravity of the snowplow caused by snow moves closer to the center of gravity of the snowplow
Because the moment on the top was made smaller.

To prevent uniform lifting of a snowplow and improve the finish of a snowplow surface. In addition, since some of the arms are in charge of moving the snow removal equipment vertically and horizontally, it is possible to simplify the support structure of the snow removal equipment and keep manufacturing costs low. FIG. 2 is a side view showing a state in which snow removal is being performed by a snowplow similar to FIG. 1, and FIG. 3 is a control n! showing one embodiment I11 of the invention. Schematic diagram, Figure 4 μ is a plan view of Figure 3, Figure 5 is an enlarged 1-plane schematic diagram of the main part of the same actual barge 1, Figure 6 IV to Figure 5
FIG. 7 is an enlarged sectional view of part A in the figure, and FIG. 7 is a front view 1 of a portion of FIG. 5, M'81. The main part of the AI μ example is enlarged on the dark side 1
,: Figure 9 is an enlarged sectional view of B6H< of Figure 8, Figure 10
1J is an explanatory diagram showing a tilt angle of 0.

H...Oh! j, G... Center of gravity, 10
・・・・・・Snowplow, ・・・One end, 13b・・・・・・
- Proximal end.

Claims (1)

[Claims] Ohto's snow removal device is attached to the main unit via the arm.
Snow Removal M
A concave hole is formed from the i to the vicinity of the main center of the vehicle body, and the arm is pivotally attached to the vehicle body in the vicinity of the center of gravity in the interior of the vehicle so as to be pivotable downward. A special feature that supports the double removal device of snowplows.