JPH0124189Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a chute elevating device for a rotary snowplow having a novel configuration.

[Prior Art] Conventionally, this type of device is as follows.

In recent years, rotary snowplows have been required to have a variety of snow removal positions, such as dumping snow over long distances, loading snow onto trucks using a chute, and blowing snow from short distances to arbitrary positions around buildings. It is strongly desired to secure forward visibility during transport.

For this reason, for example,
Something like Publication No. 114815 has been proposed.

The outline of its structure and operation is as follows.

That is, the chute is connected via a fixed hinge pin on a swing bearing provided at the blower case discharge port, and by stroking the prone cylinder, the chute is placed in a prone position with the fixed hinge pin as the center of rotation. ing.

[Problems to be solved by the invention] The conventional techniques described above had the following problems.

To raise and lower the chute, the chute is simply made to lie down by stroking the hydraulic cylinder 110 with the hinge pin as the center of rotation, and it is impossible to move the chute sideways while falling.

Furthermore, if the chute is tilted until the center line in the stroke direction of the hydraulic cylinder coincides with the center of the hinge pin, it is impossible to cause the chute to occur, no matter how large the thrust of the hydraulic cylinder is.

[Means for Solving the Problems] In order to achieve the above object, the present invention is as follows.

That is, in the present application, the blower case 2 and the shoot assembly 10 of the snow removal device of the rotary snow blower are separated, and the air blower case 2 has a structure above the snow outlet 2A of the tiltable blower case 2. Front and rear undulation guide frames 3, 3' for the purpose of undulating and holding the ute assembly 10 are installed on the snow removal frame 1, and these undulation guide frames 3, 3' are positioned in the front and rear around the snow removal port 2A. At the same time,
Arranged so as to be perpendicular to the traveling direction of the snow removal device,
One end of the corresponding undulation cylinder 8, 8' is connected to each of the undulation guide frames 3, 3', and one end is connected to the undulation arm 7 via a undulation guide roller 9, 9' that fits into the undulation guide frame 3, 3'. , 7', and furthermore, the undulating arms 7, 7' are integrally formed with the shoot assembly 10, and the undulating arms 7, 7'
Brackets 11, 11' and the first pin 5,
5', a chute hoisting device for a rotary snowplow in which a chute assembly 10 and a hoisting guide frame 3, 3' are connected via hoisting links 4, 4' and second pins 6, 6'. .

[Function] In the present invention, since the first pins 5, 5' supporting the shoot assembly 10 and the guide rollers 9, 9' for undulation are configured to be rotatable and movable, the undulation cylinder 8 , 8', the undulation guide rollers 9, 9' move in the grooves of the undulation guide frames 3, 3' in the direction of the second pins 6, 6, and Since the first pins 5, 5', which are the support points of the
The first pins 5, 6, 6' are the centers of rotation.
5' will rotate.

Therefore, by extending the undulation cylinder,
The shoot assembly moves sideways and lies down, reaching the state shown in Figure 2.

[Embodiments of the invention] The present invention has been devised in view of the above situation, and the details of the embodiments will be described below with reference to the drawings.

A is the chute elevating device of the rotary snowplow of the present invention.

Therefore, its configuration is as follows.

In a rotary snow blower having a configuration in which the blower case 2 and the shoot assembly 10 of the snow removal device are separated, there is an undulation of the shoot assembly 10 above the snow outlet 2A of the tiltable blower case 2. , front and rear undulating guide frames 3, 3' for the purpose of holding are mounted on the snow removal frame 1.

In this case, these undulation guide frames 3, 3' are located in front and behind the snow removal port 2A, and are arranged perpendicular to the traveling direction of the snow removal device.

One end of the corresponding undulation cylinder 8, 8' is connected to each of the undulation guide frames 3, 3', and one end is connected to the undulation guide frame 3, 3' via a undulation guide roller 9, 9' that fits into the undulation guide frame 3, 3'. Arm 7,
Furthermore, the undulating arms 7, 7' are integrally formed with the shoot assembly 10.

The lifting arms 7, 7' are attached to brackets 11, 11' attached to the shoot assembly 10.
and the first pins 5, 5', the undulating links 4, 4' and the second
The shoot assembly 10 and the undulating guide frames 3, 3' are connected via pins 6, 6'.

As is clear from FIGS. 1 and 2, by stroking the rods of the undulation cylinders 8, 8' that are in contact with the undulation guide frames 3, 3', the fulcrums 12, 12' of the undulation guide roller part and the first pin The positions of 5 and 5' move, and the relative position when the chute is raised and lowered is the 1st position.
The shape is as shown in the figure, and the relative position when lying down is as shown in Figure 2.

[Effects of the invention] Since the present invention is configured as described above, it produces the following effects.

In this case, even if the chute is relatively long for the specified width of the snow removal device, the undulating link 4,
4', undulation arms 7, 7' and undulation cylinder 8,
By selecting the stroke combination value 8', it is possible to easily control the stroke within the width of the snow removal device as shown in FIG.

In particular, the device of the present invention allows the chute to lie down while moving laterally, so the length of the chute can be made as long as the limited width of the snow removal device, and furthermore, an appropriate combination of the hoisting link and arm can be set. Therefore, the thrust required to cause the chute can be relatively small, which is excellent in terms of energy savings.

In addition, by installing the undulation guide frame, the chute can be installed not only horizontally as shown in this figure, but also downwardly to the right, for example, to lower the prone height of the chute, ensuring forward visibility when transporting the vehicle. can further be made possible.

As a result, it is possible to secure forward visibility during forwarding, which greatly contributes to safe driving.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the relationship between the snow removal frame, blower case, chute, and hoisting device of a rotary snow removal device showing an embodiment of the present invention, Fig. 2 is a front view showing the chute in a prone state, and Fig. 3 is FIG. 4 is a detailed view of the undulating guide frame portion, and FIG. 4 is a detailed view of the undulating link portion. 1... Snow removal frame, 2... Blower case, 3, 3'
...Uphill guiding frame, 4,4'...Uphill link, 5,
5'...1st pin, 6, 6'...2nd pin, 7,
7'...Luffing arm, 8,8'...Luffing cylinder, 9,9'...Luffing guide roller, 10...
...Shute assembly, 11, 11'...Bracket, 12, 12'...Fully point of the guide roller for undulation.

Claims (1)

[Scope of utility model registration request] In a rotary snow blower having a configuration in which the blower case 2 and the shoot assembly 10 of the snow removal device are separated, there is an undulation of the shoot assembly 10 above the snow outlet 2A of the tiltable blower case 2. Front and rear undulation guide frames 3, 3' for the purpose of retention are mounted on the snow removal frame 1, and these undulation guide frames 3, 3' are located front and rear with the snow removal opening 2A as the center, and The undulation guide frames 3 and 3' are arranged perpendicular to the traveling direction, and one end of the corresponding undulation cylinder 8 and 8' is connected to each of the undulation guide frames 3 and 3', and one end has a undulation guide roller that fits into the undulation guide frame 3 and 3'. 9, 9' to the undulating arms 7, 7', and the undulating arms 7, 7'.
7' is integral with the shoot assembly 10, and the undulating arms 7, 7' are attached to brackets 11, 7', which are attached to the shoot assembly 10.
11' and the first pins 5, 5', the undulation links 4, 4', and the second pins 6, 6', the chute assembly 10 and the undulation guide frames 3, 3' are connected. A chute hoisting device for rotary snowplows featuring: