JP2011231454A - Walking-type snowplow - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a walking-type snowplow having a simple structure that steadily pushes snow, and can load and carry snow as needed.SOLUTION: A walking-type snowplow 11 pushes snow Sn with a dozer part 12, and elevates the dozer part 12 to the maximum height Mu by lowering an operation handle 15 continued through a supporting beam 16 from the dozer part 12. The walking-type snowplow 11 has a dozer rotation device 17 that can fix or change an angle α of the dozer part 12 as needed. The dozer rotation device 17 comprises an operation mechanism 21 provided at the operation handle 15, a restriction release mechanism 22 that releases the restriction on the dozer part 12 by the operation of the operation mechanism 21, and a dozer fulcrum part 23 provided apart from the center of gravity G of the dozer part 12 including Sn within the dozer part 12 toward the operation handle 15 by a prescribed distance Ld at the maximum height Mu.

Description

  The present invention relates to a walking type snow remover that pushes snow at a dozer part during snow removal work, scoops the snow with the dozer part as needed, lifts the dozer part, transports it, and throws away the snow.

Some walking snowplows use a dozer part as a lever to lift it manually.
For example, when the handle is pushed down, the main frame placed so as to swing on the traveling frame is tilted forward and the dozer part of the main frame is raised at the same time (see, for example, Patent Document 1).
Further, when the handle is pushed down, only the dozer part continuous to the handle rises with an axis provided on the body frame as a fulcrum (see, for example, Patent Document 2).

However, in the prior art (Patent Documents 1 and 2), during snow removal work, even if the snow can be pushed and moved by the dozer part, the moved snow cannot be placed on the dozer part and carried on the dozer part. .
Further, in such snow removal work, there is a problem that the place where the pushed snow is placed or thrown away is limited to a specific place such as an end point moved by pushing, for example, an end of the snow removed place.
If a hydraulic device that changes the angle of the dozer part from the forward direction to pushing the snow is placed to place snow on it, the body frame may be lifted by the hydraulic pressure when the angle of the dozer part is changed.
It has been desired to secure snow pushing, to carry snow as needed, to carry snow, and to simplify the structure.

JP-A-5-179624 JP 2008-133603 A

  An object of the present invention is to provide a walking type snow remover that secures snow pushing, can carry snow as needed, can carry snow, and has a simple structure.

  In order to solve the above-mentioned problem, the invention according to claim 1 raises the dozer part to the ascending limit by pushing snow with the dozer part and lowering the operation handle continuing from the dozer part via the support beam. The walking type snowplow includes a dozer rotating device that can fix or change the angle of the dozer as necessary, and the dozer rotating device includes an operation mechanism provided on the operation handle, and restrains the dozer by operating the operation mechanism. A restraint releasing mechanism for releasing the lift and a dozer fulcrum provided at a predetermined distance from the center of gravity of the dozer including snow in the dozer to the operation handle in the ascending limit state. Features.

  The invention according to claim 1 includes a dozer rotation device that can fix or change the angle of the dozer portion as necessary, and the dozer rotation device includes an operation mechanism provided on the operation handle, and an operation of the operation mechanism. A restraint release mechanism that releases the restraint of the dozer, and a dozer fulcrum portion that is provided a predetermined distance away from the center of gravity of the dozer portion toward the operation handle. When the restraint is released, the dozer part raises the operation handle, changes the angle upward with the dozer fulcrum part as a fulcrum, and scoops the snow that was being pushed. In other words, snow can be placed.

  Subsequently, when the upward dozer part is restrained by the restraint release mechanism and the operation handle is lowered, the dozer part rises from the vicinity of the ground to the ascending limit, so that snow can be transported.

  After the transportation, when the restraint is released by the restraint release mechanism, the dozer part automatically changes its angle downward with the dozer fulcrum as a fulcrum depending on the weight of the loaded snow and the weight of the dozer, and the snow in the dozer falls. In other words, it can snow.

  In this way, snow can be placed on the dozer without using a hydraulic device such as a hydraulic pump or a pneumatic device such as a compressor, and the snow can be lowered by returning the dozer.

  Further, since a hydraulic device or a pneumatic device is not required, there is an advantage that the structure for scooping snow becomes simple.

1 is a side view of a walking snowplow according to Embodiment 1 of the present invention. 1 is an exploded view of a walking snowplow according to Embodiment 1. FIG. It is a 3 arrow line view of FIG. 1, (b) is the b section detailed drawing of (a). FIG. 4 is a detailed sectional view taken along line 4-4 in FIG. FIG. 5 is a detailed sectional view taken along line 5-5 in FIG. FIG. 6 is a detailed sectional view taken along line 6-6 of FIG. 3 is a detailed view of a base bracket of the dozer rotating device according to Embodiment 1. FIG. It is a figure explaining the mechanism which scoops and places snow on the walking type snow remover which concerns on Example 1, (b) is b arrow directional view of (a). It is a figure explaining the mechanism which lifts the snow of the walk type snow remover which concerns on Example 1, (b) is a b arrow line view of (a). It is a figure explaining the mechanism which falls snow of the walking type snow remover which concerns on Example 1, (b) is b arrow line view of (a). It is a side view of the walking type snow remover which concerns on Example 2 of this invention. FIG. 12 is a detailed view of part 12 of FIG. 11. FIG. 13 is a detailed view of part 13 in FIG. 12. It is a figure explaining the action | operation mechanism of the restraint cancellation | release mechanism which concerns on Example 2. FIG. FIG. 10 is a detailed view of a constraint release mechanism according to Embodiment 2.

  Hereinafter, embodiments of the present invention will be described in detail in Example 1 and Example 2.

As shown in FIG. 1, the walking snowplow 11 according to the first embodiment pushes and moves the snow Sn by the dozer unit 12 and puts it in the dozer unit 12, then places it on the dozer unit 12, transports it, and discards it ( Can be taken down).
The walking type snow remover 11 travels with the engine 14 and places the snow Sn on the dozer portion 12 by human power using the operation handle 15 in this manner. It does not use a hydraulic or pneumatic device to place snow.

Next, the main configuration of the walking snowplow 11 according to the first embodiment will be described with reference to FIGS.
The walking type snowplow 11 pushes the snow Sn at the dozer unit 12 and lowers the operation handle 15 continuing from the dozer unit 12 through the support beam 16 to raise the dozer unit 12 to the ascent limit Mu (FIG. 9). Let

  A dozer rotating device 17 is provided between at least the dozer section 12 and the support beam 16 so that the angle α of the dozer section 12 can be fixed or changed as necessary.

The dozer rotating device 17 includes an operation mechanism 21 provided on the operation handle 15, a restraint release mechanism 22 that releases the restraint of the dozer unit 12 by the operation of the operation mechanism 21, and the inside of the dozer unit 12 in the ascending limit Mu state. And a dozer fulcrum portion 23 provided at a predetermined distance Ld from the center of gravity G of the dozer portion 12 including snow Sn toward the operation handle 15.
Further, the dozer fulcrum portion 23 is provided below the center of gravity G in the state of the ascending limit Mu.

Next, a specific description will be given.
The walking snowplow 11 includes a machine body 27 shown in FIG. 2, an engine 14 mounted on the machine body 27, a crawler mechanism 28 driven by the driving force of the engine 14, a dozer unit 12 provided in front, and a rear arrangement. The operating handle 15 and the dozer rotating device 17 are provided. 31 is a dozer raising / lowering mechanism.

The dozer 12 is an existing one, but the direction of the opening 32 changes.
If necessary, the dozer unit 12 has a snow pushing snow removal position D1 (FIG. 1) of the dozer unit 12 with the opening 32 facing the front of the walking snowplow 11 and a snow rake of the dozer unit 12 with the opening 32 facing obliquely upward. The position D2 (FIG. 8) is set to the snow throwing position D3 (FIG. 10) of the dozer 12 with the opening 32 facing the ground. Then, it is raised and lowered by the dozer lifting mechanism 31.

The dozer lifting mechanism 31 includes an operation handle fulcrum part 34, a support beam 16 extending from the operation handle fulcrum part 34, and the operation handle 15.
The operation handle fulcrum part 34 was fitted between a drive wheel 36 and an idler wheel 37 of the crawler mechanism 28 and a fulcrum shaft 38 disposed in the vicinity of the idler wheel 37.

  The operation handle 15 extends the operation handle main body 41 obliquely upward from the operation handle fulcrum part 34 in the rear of the walking snowplow 11, and extends the grip part 42 to the rear of the operation handle main body 41 substantially horizontally. ing. A support beam 16 is connected to the lower portion of the operation handle body 41.

As necessary, the operation handle 15 includes a snow pushing / removing position N1 of the operation handle 15, a snow scooping position N2 of the operation handle 15 (FIG. 8), and a snow carrying position / snow throwing position N3 of the operation handle 15 (FIGS. 9 and 10). ).
When the operation handle 15 is operated at each of these positions N1, N2, and N3, the support beam 16 that is integrally continuous is operated.

  As shown in FIGS. 1 and 2, the support beam 16 continues to the lower portion of the operation handle main body 41 or extends from the operation handle fulcrum 34 to the front of the walking snowplow 11. The front part 44 is extended by a predetermined distance from the machine body 27 and is formed at a substantially right angle.

As shown in FIGS. 3 and 6, the front portion 44 has an edge flange 47 attached to the edge, and the edge flange 47 forms a snow throwing stopper when the snow is thrown away.
By attaching the edge flange 47, the strength against the load input from the dozer portion 12 can be increased.
Further, the restraint releasing mechanism 22 and the dozer fulcrum 23 are connected to the front portion 44.

  As shown in FIG. 3A, the restraint releasing mechanism 22 is bilaterally symmetric with respect to the center C of the walking snowplow 11 in a plan view (the viewpoint in FIG. 3) of the walking snowplow 11. And it operates with the one operation mechanism 21 shown in FIG.

As shown in FIGS. 1 and 3, the restraint releasing mechanism 22 has a base bracket 51 attached to the front portion 44 of the support beam 16 extending forward from the airframe 27, and a pin is directly moved to one end portion and the other end portion of the base bracket 51. A mechanism 52 is provided. Further, a base plate 53 is attached to the base bracket 51, and a rotating plate 54 is attached to the base plate 53 at the dozer fulcrum portion 23.
Next, these will be described in detail.

  As shown in FIGS. 4 to 7, the base bracket 51 has an L-shaped cross section, the front edge facing forward forms the snow scoop stopper portion 56, and is attached to the front portion 44 of the support beam 16 with a mounting groove 57 ( (See FIG. 7). And the base board 53 is attached to the edge of one end part and the other end part.

  The base plate 53 is a substantially right triangle in a side view of the walking snowplow 11 (viewpoint in FIG. 4), and is provided with a joint portion 61 that joins the base bracket 51. A portion 62 is formed. And the overlapping part 64 of the rotating plate 54 overlaps.

The rotating plate 54 slidably overlaps the base plate 53 and forms a dozer attaching portion 66 that is connected to the overlapping portion 64 and is attached to the snow removing plate 65 of the dozer portion 12.
Further, a snow pushing hole 67 and a snow placing hole 68 are opened from the dozer fulcrum 23 to the rear of the walking type snow remover 11 with a radius for fitting the pin 71 of the pin direct acting mechanism 52.
Then, when the pin 71 is removed from the snow pushing hole 67 or the snow placing hole 68, the dozer fulcrum portion 23 is rotated about the center (fulcrum) or is freely rotatable.

The dozer fulcrum portion 23 has a first hole 72 opened in the connecting corner portion 62 of the base plate 53 shown in FIG. 3 (b), and a second hole opened concentrically with the first hole 72 in the center of the rotating plate 54. 73 and a connecting fulcrum pin 74 fitted in the first hole 72 and the second hole 73.
Then, the load input from the dozer unit 12 is transmitted to the support beam 16 by the pin linear motion mechanism 52.

The pin linear movement mechanism 52 includes a pin 71, a case part 81 that slidably receives the pin 71 and fixed to the base bracket 51, and is housed in the case part 81 and pushes the pin 71 toward the origin (advance limit Ss). A return spring 82 and a cable connecting portion 83 continuing to the pin 71 are provided.
When the operating mechanism 21 is operated (gripped), the pin 71 moves backward from the origin (forward limit Ss) to the backward limit Se.

  The operating mechanism 21 is a lever (hereinafter also referred to as a lever) provided in the vicinity of the grip portion 42 and connects the cable 85 connected to the cable connecting portion 83 of the pin 71.

When the lever 21 is at the lever origin position (restraint position) R (FIG. 1), the pin 71 of the pin linear movement mechanism 52 is fitted in the snow pushing hole 67. And it is the state which has advanced to the advance limit Ss (FIG. 3).
When the lever 21 is at the release position K (FIG. 8), the pin 71 of the pin direct acting mechanism 52 is retracted to the retreat limit Se (FIGS. 3B and 8B).

  More specifically, depending on the conditions (snow removal work process), there are a case where the snow is placed in the snow loading hole 68 and a case where the rotating plate 54 is pushed.

  The cable 85 is an existing one (FIG. 5). A wire 87 is passed inside the outer skin 86. In addition, as shown in FIG. 2, a cable 85 (wire 87) branched from the branch portion 88 is connected to the left and right pin linear motion mechanisms 52.

  Next, the operation of the walking snowplow 11 will be described (FIG. 1, FIG. 3 (b), FIG. 8 to FIG. 10). A description of driving by the engine 14 is omitted.

First, a general snow pushing snow removal mechanism will be described with reference to FIG. 1, and then a mechanism for scooping and placing snow will be described with reference to FIG.
Further, a mechanism for lifting snow will be described with reference to FIG. 9, and a mechanism for dropping and throwing snow will be described with reference to FIG. Finally, a mechanism for returning the dozer unit 12 to the original state, that is, a mechanism for returning to the snow pushing snow removal position D1 will be described.

  When performing a general snow pushing snow removal work, the walking snow remover 11 sets the dozer unit 12 and the operation handle 15 as the origin as shown in FIG.

  Specifically, the operation handle 15 is fitted into the snow pushing hole 67 of the rotary plate 54, the snow pushing position N 1, the lever (operating mechanism) 21 is fitted to the lever origin position (restraint position) R, and the pin 71 of the pin direct acting mechanism 52 is fitted into the snow pushing hole 67 of the rotating plate 54 To do. When fitted into the snow pushing hole 67, the dozer 12 is restrained at the snow pushing snow removal position D1.

  When the opening 32 of the dozer unit 12 is directed to the snow Sn and the walking snow remover 11 is moved forward, the snow Sn can be pushed and moved by the dozer unit 12, and snow pushing snow removal work can be performed.

Next, a mechanism for scooping and placing snow will be described with reference to FIG.
The snow Sn is collected in the dozer 12 by pushing and moving the snow Sn in the dozer 12. When the lever 21 is squeezed to the release position K, the cable 85 in FIG. 8B is pulled as indicated by an arrow a1, so that the pin 71 of the pin direct acting mechanism 52 is retracted to the retreat limit Se.

Since the pin 71 is removed from the snow pushing hole 67, when the operation handle 15 starts to rotate to the snow scooping position N2 as indicated by the arrow a2, the dozer portion 12 is pressed against the ground Gr, and the dozer fulcrum portion 23 serves as an arrow a3. And the opening 32 is directed upward.
Then, it abuts against the snow rake stopper portion 56 of the base bracket 51 (see FIG. 6) to stop the rotation. At the same time, the operation handle 15 reaches the snow scoop position N2.

As a result, the dozer unit 12 is set to the snow scoop position D2 of the dozer unit 12, and the pin 71 of the pin direct acting mechanism 52 automatically fits into the snow loading hole 68 of the rotating plate 54 (FIG. 9B). Accordingly, the dozer 12 is restrained at the snow scoop position D2.
On the other hand, the lever (operation mechanism) 21 surely returns to the lever origin position (restraint position) R.

  More specifically, when the dozer unit 12 starts to rotate, when the lever 21 is released, the pin 71 continues to push the rotating plate 54, so when the concentricity with the snow mounting hole 68 of the rotating plate 54, the snow mounting hole Fits automatically to 68.

Alternatively, the lever 21 may be released by continuing to hold the lever 21 at the snow scoop position N2.
That is, when the operation handle 15 is kept at the snow scoop position N2 and the lever 21 is released, the lever 21 automatically returns to the lever origin position (restraint position) R and the pin 71 of the pin direct acting mechanism 52 moves forward. The forward limit Ss is reached by fitting into the snow mounting hole 68.

Next, a mechanism for lifting snow will be described with reference to FIG.
Subsequently, when the operation handle 15 starts to rotate from the snow scoop position N2 to the snow carrying position / snow throwing position N3 as indicated by an arrow a4, the dozer 12 rises from the state of scooping snow Sn as indicated by an arrow a5. Begin to.
As soon as the operation handle 15 reaches the snow carrying position / snow throwing position N3, the dozer unit 12 reaches the ascent limit Mu.

Next, the crawler mechanism 28 is driven by the engine 14 to carry snow Sn.
During traveling and transportation, the operation handle 15 is in a free state with the operation handle fulcrum part 34 as a fulcrum. Therefore, the operation handle 15 may swing toward the snow pushing and removing position N1 as long as the dozer unit 12 does not interfere with the object, and the operation handle 15 may be supported so that the dozer unit 12 does not interfere.

Next, a mechanism for dropping snow and throwing it away will be described with reference to FIG.
When the lever 21 is gripped and moved to the release position K of the lever 21 after transportation, the pin 71 is removed from the snow loading hole 68 (FIG. 10 (b)), so the dozer 12 automatically moves the arrow to the dozer fulcrum 23 as a fulcrum. It turns like a6.

  Specifically, the center of gravity G of the dozer 12 when the snow Sn is placed by the center of gravity of the snow Sn placed on the dozer 12 is separated from the dozer fulcrum 23 toward the front of the walking snowplow 11 by a distance Ld. Therefore, when the restraint of the dozer unit 12 is released, the dozer unit 12 automatically rotates. As a result, the snow placed on the dozer unit 12 is discarded.

  The dozer unit 12 is released from the lever 21 after starting to rotate toward the snow throwing position D3. The pin 71 of the pin linear motion mechanism 52 continues to push the rotating plate 54.

Next, a mechanism for returning the dozer unit 12 to the snow pushing and removing position D1 will be described with reference to FIGS.
After the snow Sn is lowered (discarded), when the operation handle 15 is continuously returned to the snow pushing / removing position N1 as indicated by the arrow a7, the dozer unit 12 touches the ground Gr. When the operation handle 15 is returned to the snow removal position N1 while the walking snowplow 11 is moved backward in the touched state (see FIG. 1), the pin 71 of the pin direct acting mechanism 52 is automatically fitted into the snow pushing hole 67. Therefore, the dozer part 12 is restrained at the snow pushing snow removal position D1 of the dozer part 12 (FIG. 1).

  As described above, the walking type snow remover 11 according to the first embodiment can place the snow Sn on the dozer unit 12 without using a hydraulic device such as a hydraulic pump or a pneumatic device such as a compressor. The snow Sn can be lowered by returning the part 12 as indicated by an arrow a6.

  Moreover, since a hydraulic device or a pneumatic device is not required, there is an advantage that the structure for scooping up snow Sn is simplified.

  Next, a walking type snowplow 11B according to Example 2 will be described with reference to FIGS. The same components as those in the first embodiment shown in FIGS. 1 to 10 are denoted by the same reference numerals and description thereof is omitted.

  The walking type snowplow 11B according to the second embodiment includes a dozer rotating device 17B.

  The dozer rotating device 17B has a predetermined direction from the center of gravity G of the dozer portion 12 including the snow Sn in the dozer portion 12 toward the operation handle 15 in the state of the operation mechanism 21, the restraint releasing mechanism 22B, and the ascending limit Mu. And a dozer fulcrum portion 23 provided at a distance of Ldb.

The restraint releasing mechanism 22B attaches a base bracket 51B to the front portion 44B of the support beam 16B, attaches a base plate 53B to the base bracket 51B, and supports the rotating plate 54B on the base plate 53B by the dozer fulcrum 23. ing.
The edge of the rotating plate 54B is attached to the snow removing plate 65 of the dozer unit 12.

  Further, the restraint releasing mechanism 22 </ b> B has a front locking bracket 101 attached to the center of the upper portion of the dozer part 12, and the rod leading end 103 of the damper mechanism 102 is connected to the front locking bracket 101 via a rod pushing mechanism 111. (FIG. 13).

  A rear hinge lug 104 of the damper mechanism 102 is connected to a rear locking bracket 105 provided on the support beam 16B.

In the rod pushing mechanism 111, a connecting member 113 is swingably attached to the front locking bracket 101 by a first connecting pin 114, and the connecting member 113 is integrally fixed to the rod tip 103 of the rod 115 of the damper mechanism 102. .
A push arm 117 is swingably attached to the connecting member 113 by a second connecting pin 118.

The push arm 117 is provided with a push portion 121 that pushes the push rod 108 in the center, and a cable connecting portion 122 is formed at the tip that is connected to the push portion 121 and is opposite to the fulcrum (second connecting pin 118).
The wire 87 of the cable 85 is connected to the cable connecting portion 122.

The damper mechanism 102 is an existing damper.
The damper mechanism 102 includes a damper case 125, a rear hinge lug 104 provided in the damper case 125, a rod 115 extending from the damper case 125, a cover member 126 covering the rod 115, and a push rod 108 fitted in the rod 115.

  Sb is the stroke amount of the rod 115, Sp is the movement amount of the push rod 108, Cp is the closed position of the push rod 108, and Op is the open position of the push rod 108.

Further, the damper mechanism 102 includes a piston not shown in the drawing.
The piston joins the center to the end of the rod 115 arranged in the damper case 125, slides in the damper case 125 integrally with the rod 115, and divides the damper case 125 into a front chamber and a rear chamber, A seal portion that is in close contact with the push rod 108 is provided.

When the push rod 108 is pushed to the open position Op (FIG. 14), the groove parallel to the longitudinal direction carved in the end of the push rod 108 moves to the seal portion at the center of the piston, thereby connecting the front chamber and the rear chamber. . As a result, gas flows from the front chamber to the rear chamber or from the rear chamber to the front chamber through the groove.
When the push rod 108 returns to the closed position Cp (FIG. 13), the groove is separated from the seal portion and the seal portion is sealed, so that the rod 115 stops and does not advance or retreat.

  The walking type snow remover 11B according to the second embodiment can load, transport, and lower snow Sn in the same manner as the walking type snow removal machine 11 according to the first embodiment.

  Specifically, first, as shown in FIG. 11, the operation handle 15, lever (operation mechanism) 21, and dozer unit 12 are set as the origin.

That is, they are set to the snow pushing snow removal position N1 of the operation handle 15, the lever origin position (restraint position) R of the lever 21, and the snow pushing snow removal position D1 of the dozer unit 12.
On the other hand, the damper mechanism 102 is the closed position Cp of the push rod 108, and the dozer part 12 is restrained.

Then, snow pushing snow removal work is performed as in Example 1 (FIG. 1).
Subsequently, as shown in FIG. 8 of the first embodiment, the snow is put on, but the mechanism of the second embodiment is different from the mechanism of the first embodiment.

  In the second embodiment, as shown in FIG. 15, when the lever 21 is gripped (arrow b1), the damper mechanism 102 is pushed at the tip of the push rod 108 (FIG. 14), and the push rod 108 is in the open position Op. The dozer 12 is in a state where the restraint is released.

Next, as already described, when the operation handle 15 is moved to the snow scoop position N2 (arrow b2), snow scooping can be performed (arrow b3).
At that time, the rod 115 of the damper mechanism 102 provided in the restraint releasing mechanism 22B moves backward to a stroke amount slightly shorter than the stroke amount Sb or the stroke amount Sb.

  When the lever 21 is released after the snow scoop (arrow b4), the push rod 108 of the damper mechanism 102 is in the closed position Cp (FIG. 13), so that the rod 115 is stopped by the gas (when the lever 115 is moved backward in FIG. 15). Full length state). As a result, the dozer unit 12 is restrained in a state of scooping snow.

  Subsequently, when the operation handle 15 is rotated to the snow carrying position / snow throwing position N3 (arrow b5), the dozer 12 reaches the ascent limit Mu (arrow b6).

  To drop (throw away) the transported snow Sn, when the lever 21 is gripped (arrow b7), the push rod 108 of the damper mechanism 102 moves to the open position Op, so the dozer 12 automatically moves the dozer fulcrum 23. The fulcrum rotates as indicated by an arrow b8 (see also FIG. 10). As a result, the snow placed on the dozer unit 12 is discarded.

  After discarding the snow Sn, the operation handle 15 is returned to the snow removal position N1 (arrow b9), and the lever 21 is released, so that the push rod 108 is in the closed position Cp. Restrained at D1 (FIG. 11).

Thus, the walking snowplow 11B according to the second embodiment exhibits the same effects as the walking snowplow 11 according to the first embodiment.
That is, snow Sn can be placed on the dozer unit 12 without using a hydraulic device such as a hydraulic pump or a pneumatic device such as a compressor, and the snow Sn can be lowered by returning the dozer unit 12.

  Moreover, since a hydraulic device or a pneumatic device is not required, there is an advantage that the structure for scooping up snow Sn is simplified.

  Further, the walking type snow remover 11B according to the second embodiment moves the dozer unit 12 to an arbitrary position within the range of the stroke amount Sb of the rod 115 by the damper mechanism 102 of the restraint releasing mechanism 22B of the dozer rotating device 17B. Angle within the range of the angle αb). As a result, snow removal work becomes easier.

  The walking snowplow of the present invention is suitable for a walking snowplow.

  DESCRIPTION OF SYMBOLS 11 ... Walking type snow remover, 12 ... Dozer part, 15 ... Operation handle, 16 ... Support beam, 17 ... Dozer rotation device, 21 ... Operation mechanism, 22 ... Restraint release mechanism, 23 ... Dozer fulcrum part, G ... Dozer part , Ld ... predetermined distance, Mu ... rising limit, Sn ... snow, α ... angle of the dozer.

Claims (1)

In the walking type snow remover that pushes the snow in the dozer part and raises the dozer part to the ascending limit by lowering the operation handle continuous from the dozer part via the support beam,
A dozer rotating device capable of fixing or changing the angle of the dozer as necessary;
The dozer rotation device includes an operation mechanism provided on the operation handle;
A restraint release mechanism for releasing the restraint of the dozer part by operation of the operation mechanism;
A dozer fulcrum portion provided at a predetermined distance from the center of gravity of the dozer portion including the snow in the dozer portion toward the operation handle in the ascending limit state. Type snowplow.

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