JP2005139666A - Snowblower - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that workability is low because there is a place where raked snow cannot be blown off by a snowblower with a snow removing part such as a rake-in auger and a blower, and because the amount of the snow to be pushed away is predetermined in the case of a dozer type snowblower, when snow removing work is done. <P>SOLUTION: A snow disposal plate 40 is provided in a detachable and vertically rotatable manner in front of the snow removing part 11 wherein the rake-in auger 19, the blower 17 and the like are arranged in front of a traveling part: a guide plate 50, which is provided in such a manner as to be extended backward from the rear surface or top surface of the snow disposal plate 40, can be locked to a locking member 52 which is provided in an auger housing 18; a guide plate mounting part of the snow disposal plate 40 is provided with a locking par; and the guide plate can be housed and held in the snow disposal plate. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a technique in which a snow removal unit equipped with a stirrer auger, a blower, a shooter, or the like is disposed at the front of a traveling unit, and a snow drain plate is disposed at the front of the snow removal unit.

  2. Description of the Related Art Conventionally, snow removal machines in which a snow removal unit such as a stirrer auger, a blower, and a shooter are arranged at the front part of the traveling unit are known. Such a snowplow is traveling forward, collecting snow at the center while crushing the snow by rotation of the take-in auger, and jumping from the shooter to the side etc. by rotation of the blower.

  In addition, a technique is also known in which a snow removing plate (dozer) such as a blade is disposed in front of the traveling unit in place of the snow removing unit so that the accumulated snow can be pushed away while traveling. (For example, refer to Patent Document 1).

JP 2002-30629 A

However, as described above, in the configuration where the snow is scraped and blown to the side using a blower and shooter, snow removal work may not be possible if there are houses on the side, and if the blower is blown by the blower Even though it can be released to some distance, it is difficult to fly it to the front or right side.
On the other hand, since the snow removal work using the snow drainage board is a work that pushes away snow, it is not possible to remove snow larger than the area of the snow drainage board, and the work efficiency is also poor.
Therefore, the present invention makes it possible to work with only each of them by arranging a snow drainage plate in front of the stirrer auger, taking advantage of both disadvantages, and taking advantage of both, so that the work can be performed even when both are combined. To do.

  The problems to be solved by the present invention are as described above. Next, means for solving the problems will be described.

That is, according to the first aspect of the present invention, a snow removing plate is provided at the front portion of the snow removing portion in which a scraping auger, a blower, or the like is disposed at the front portion of the traveling portion, and is detachable and rotatable up and down. A guide plate extends rearward from the rear or upper surface, and the guide plate can be locked to a locking member provided on the auger housing.
According to a second aspect of the present invention, a locking member is provided at the guide plate mounting portion of the snow drain plate so that the guide plate can be stored and held in the snow drain plate.

According to a third aspect of the present invention, a snow removing plate is provided at a front portion of a snow removing portion in which a scraping auger, a blower or the like is disposed at a front portion of the traveling portion, and is detachable and pivotable up and down. The arm protrudes further forward in a rotatable manner, and a snow drainage plate is fixed to the front end of the arm.
According to a fourth aspect of the present invention, a stopper is provided in the vicinity of the rotation base of the arm.

  According to a fifth aspect of the present invention, a snow removing plate is provided at the front portion of the snow removing portion in which a scraping auger, a blower or the like is arranged at the front portion of the traveling portion, and is detachable and rotatable up and down. It is configured to be rotatable.

As effects of the present invention, the following effects can be obtained.
By configuring as in claim 1, it is possible to push the accumulated snow up to a predetermined place or to fly in a predetermined direction while scraping the snow. The state of snow accumulation and the surrounding conditions at the time of snow removal It is possible to switch the snow removal work state with a snow drain plate or scraping auger and blower according to the place where the snow is removed, the place where the removed snow is placed, etc., and a dozer type snow blower and a blow type snow remover This eliminates the need to own a battery, reduces unnecessary expenses, and improves work efficiency.
Then, by locking the guide plate to the locking member, it is possible to hold the snow discharge plate in a state of being rotated upward. In this state, the snow removal work can be performed only by the snow removal portion such as the stirrer auger or blower. It becomes possible. In addition, the guide plate and the locking member can form a locking structure with a simple structure such as a plate and a pin, and can be configured at low cost to suppress an increase in weight. And, since it is not necessary to attach or remove with bolts or the like, the locking operation can be easily performed.
In addition, by locking the guide plate to the locking member, even when the snow drain plate is lifted up unexpectedly, or when it is detached from the locking member, it does not drop to the ground, so safety Can be improved.

  According to the second aspect of the present invention, the guide plate can be attached to the snow discharge plate in the stored state when performing snow removal work with the snow discharge plate or storing the guide plate. It does not get in the way. In addition, the guide plate does not get in the way when the snow removing plate is unnecessary and removed.

  According to the third aspect of the present invention, the arm that supports the snow drainage plate does not interfere with the scraping operation by the scraping auger, and the snow draining plate can be stored in the upper front of the scraping auger case. Further, since the arm is pivotally supported by the take-in auger, it is possible to perform snow removal work following the ground surface during work.

  By configuring as in claim 4, it is possible to determine the lowest descending position of the snow drainage plate with the stopper, and even if the snow drainage plate is unexpectedly lowered, it is received by the stopper and the snow drainage plate is damaged. Can be prevented.

  By configuring as in claim 5, when performing snow removal work with the snow drainage plate, it is possible to set the direction in which the snow can be pushed away by rotating the snow drainage plate in the left-right direction and changing the direction. The pushing direction can be adjusted to the snow removal place.

Next, embodiments of the invention will be described.
FIG. 1 is a side view of a wheel type snow remover equipped with the snow removal device of the present invention, FIG. 2 is a side view of a crawler type snow removal device equipped with the snow removal device of the present invention, and FIG. FIG. 4 is a side view of the snow drain plate, FIG. 5 is a perspective view of the guide plate mounting portion, and FIG. 6 is a plan view showing the first embodiment of the front and rear rotation mounting portion of the snow drain plate. FIGS. 7 and 7 are plan views showing a second embodiment of the front and rear rotation mounting portion of the snow drain plate, FIG. 8 is a side view of the same, and FIG. 9 is a front view of the lever shaft and the fixed plate.

First, the overall configuration of the snow removal machine 10 will be described with reference to FIG.
The snowplow 10 includes a snow removal unit 11 disposed at the front of the machine body, a drive unit 12 disposed behind the snow removal unit 11, a traveling device 13 disposed below the drive unit 12, The driving operation unit 14 is arranged behind the driving unit 12 and at the rear of the machine body. The driving unit 12, the traveling device 13, and the driving operation unit 14 constitute a traveling unit.

  The snow removal portion 11 has a blower 17 provided in a blower housing 16 connected to the front portion of the machine body frame 15 and an auger housing 18 provided in front of the blower housing 16, and the rotation shaft thereof is A take-in auger 19 provided in the direction and a shooter 21 standing above the blower housing 16 so as to be horizontally rotatable are provided. On the upper surface of the blower housing 16, a pipe-like discharge port 16a is projected upward from the left and right center, and a shooter 21 base (lower portion) is rotatably fitted to the upper end of the discharge port 16a. .

  A handle 37 extending backward to the vicinity of the operation unit is attached to the rear surface of the middle part of the upper and lower parts of the shooter 21. By rotating the handle 37 left and right, the shooter is turned to change the snow throwing direction. I can do it.

  Then, in the snow removal portion 11 configured as described above, the snow that has been scraped by the scraping auger 19 toward the substantially central direction of the left and right of the auger housing 18 is splashed upward by the blower 17, and the direction is guided by the shooter 21. It can be discharged in any direction. A cap 36 is provided at the upper end of the shooter 21 and is connected to the handle 37 via a link or the like. The cap 36 can be turned up and down by the operation of the handle 37 and the snow throwing distance can be adjusted. That is, the handle 37 also serves as a means for changing the snow throwing direction and the snow throwing distance.

  In the drive unit 12, a transmission is installed in the body frame 15, and an engine 22 is mounted on the upper part of the body frame 15. The power of the engine 22 is output from the output shaft 22a and transmitted to the snow removal unit 11 and the traveling device 13 through power transmission means such as a belt and a pulley. The blower 17 and the take-in auger 19 are rotationally driven by the power transmitted to the snow removal unit 11. The power transmitted to the travel device 13 is shifted by the transmission, and then transmitted to the drive shaft 23, so that the left and right wheels 27 and 27 fixed to the drive shaft 23 are rotationally driven.

  However, the traveling device 13 may be a wheel type as shown in FIG. Moreover, as shown in FIG. 2, it may be a crawler type. In the case of the crawler type, as shown in FIG. 2, a drive shaft 23 is horizontally supported on the lower part of the body frame 15 so as to be rotatable in the horizontal direction, and drive sprockets 25, 25 are provided on both sides of the drive shaft 23. Is fitted and fixed. A rear axle 24 in which driven sprockets 26 and 26 are fitted is mounted on the rear portion of the body frame 15 so as to be rotatable. An endless crawler belt 31 is wound around the drive sprocket 25 and the driven sprocket 26 to form a crawler, and the crawler type traveling device 13 driven by the rotational drive of the drive shaft 23 by the pair of left and right crawlers. Is configured.

  In the driving operation unit 14, a steering handle 32 protrudes obliquely rearward and upward from the rear portions on both sides of the body frame 15, and the steering handle 32 is configured in a U shape in a plan view. A main clutch lever 35 that also serves as a deadman lever is arranged between them, and a snow removal clutch lever 39 for performing an operation of turning on and off the transmission from the engine 22 to the snow removal unit 11 is arranged on one side of the steering handle 32. Has been. An operation box 33 is horizontally mounted between the steering handles 32, and a travel speed change lever 38 for performing a speed change operation by the transmission is disposed in the operation box 33.

  The main clutch lever 35 and the snow removal clutch lever 39 are both provided in the vicinity of the steering handle 32, and both the travel clutch lever 35 and the snow removal clutch lever 39 are urged to the clutch OFF operation position. The lever 39 can be locked at the snow removal clutch ON operation position.

Next, the snow drain plate 40 of the present invention and the mounting structure of the snow drain plate 40 will be described with reference to FIGS.
In FIG. 3, the snow removal plate 40 is configured by forming a plate body having a concave curved surface in the left-right direction so as to be longer than the left-right width of the snow removal portion 11, thereby enabling snow removal work exceeding the machine body width. Mounting plates 41 and 41 project horizontally from the left and right center of the rear surface of the snow discharge plate 40 and rearward from the substantially vertical center, and a bracket 42 having a U-shape in side view is provided between the mounting plates 41 and 41. It is fitted from the rear and is fixed by a bolt 61 or a pin 62a as will be described later.

  A left and right central portion of a U-shaped arm 43 in a plan view is fixed to the rear portion of the bracket 42, and both sides of the arm 43 are pivotally supported on the outer surface of the auger housing 18 so as to be vertically rotatable. Support plates 43a and 43a are provided on both sides of the arm 43. A pivotal support hole 43b is opened in the support plate 43a, and a screw portion of the fixing lever 44 (FIG. 1) is inserted into the pivotal support hole 43b. A fixing lever 44 is screwed and fixed to a mounting plate 45 fixed to the side surface of the housing 18. That is, by loosening the fixing lever 44, the snow drainage plate 40 can be moved up and down, and by fixing the fixing lever 44, it can be held and fixed at an arbitrary height.

Further, a notch 43c is formed in the lower portion of the support plate 43a. On the other hand, a stopper pin 46 protrudes laterally from the mounting plate 45, and the stopper pin 46 is notched when the snow drain plate 40 is lowered to the lowest. It fits into 43c.
Thus, when the snow removal plate 40 can be moved up and down during snow removal work, the height of the lower end of the snow removal plate 40 can be made substantially the same as the lower end of the auger 19, So that when the snow removal portion 11 is lifted during non-working or the like, the stopper pin 46 is fitted into the notch 43c so that it cannot be lowered from a predetermined height so that the snow drainage plate 40 is also lifted. I have to.

Also, as shown in FIGS. 3 and 4, on the left and right sides or both sides of the upper rear side of the snow drainage plate 40, the snow drainage plate 40 is lifted in the middle or held in the upwardly stored state. A guide plate 50 is provided.
The guide plate 50 is provided with a pivot hole 50a at one end (lower end), pivotally supported on the left and right sides of the rear portion of the snow drain plate 40, and a long hole-like locking groove 51 on the other side (upper portion). Is formed. On the other hand, a locking pin (or bolt) 52 serving as a locking member projects from the upper outer surface of the auger housing 18 in the horizontal direction and is configured to be engageable with the locking groove 51.
The locking groove 51 is provided along the longitudinal direction of the guide plate 50, and the lower portion of the locking groove 51 is formed in a “let” shape to be a storage engaging portion 51 a, and the upper end of the locking groove 51 is An engaging portion 51b is provided, and an inserting portion 51c for engaging the locking pin 52 is provided between the engaging portions 51a and 51b. The insertion portion 51c is a circular hole larger than the outer shape of the locking pin 52, and is inserted into the locking pin 52 from the insertion portion 51c, and from the locking pin 52 at other positions. I try not to come out.

With this configuration, the snow discharge plate 40 and the guide plate 50 are lifted, the locking pin 52 is inserted from the insertion portion 51c, and the snow discharge plate 40 is further lifted to face upward. By locking the locking pin 52 to the joint portion 51a, the snow drainage plate 40 can be held above the scraping auger 19 and when the snow removal work is performed by the scraping auger 19, the snow draining is performed. The plate 40 is kept out of the way.
Even if the engaging portion 51a is detached from the locking pin 52 for some reason during the snow removal work or in the stored state, the snow discharging plate 40 is received by the locking portion 51b. Will not be damaged.
In addition, although the said latching | locking part 51a is only one in a present Example, it can also provide in parallel and can also change the holding | maintenance height of the snow drainage board 40 by providing in multiple.

The guide plate 50 is pivotally supported on the rear portion of the snow discharge plate 40. However, the guide plate 50 is maintained in the vertical direction while the snow discharge plate 40 is lowered, so that the guide plate 50 is stored. To be able to.
That is, as shown in FIG. 5, a guide plate mounting portion is formed in the middle in the vertical direction on the back surface of the snow discharge plate 40, and the guide plate mounting portion is formed in a plate-shaped mounting stay 54. 54 protrudes rearward, and the left and right positions of the mounting stays 54 and 54 are located in front of the side plate of the auger housing 18. The mounting stays 54 and 54 are arranged in the vertical direction in parallel to the left and right, a mounting hole is opened at the lower part of both mounting stays 54 and 54, and a pivot pin (or bolt) 55 is passed through the mounting hole. A guide plate 50 and a spring 56 are externally fitted on a pivot pin 55 between the mounting stays 54 and 54, and urged to press the guide plate 50 against the mounting stay 54 on one side (right side in this embodiment). ing.
A fixing pin 57 serving as a locking member protrudes in the vicinity of the mounting hole 54a on the inner surface side of the one side mounting stay 54 (in the upper part in the present embodiment). On the other hand, an insertion hole 50b is opened at a position facing the fixing pin 57 at a position where the guide plate 50 is directed in the vertical direction, thus constituting a locking portion.
The fixing pin 57 can be provided in the guide plate 50 and the insertion hole can be provided in the mounting stay 54. The diameter of the pivot hole 50a is larger than the diameter of the pivot pin 55 to the extent that the guide plate 50 can tilt left and right.

  In such a configuration, the guide plate 50 is tilted to the left side against the urging force of the spring 56 in the opposite direction to the fixing pin 57 during a snow removal operation in which the snow removal plate 40 is positioned in front of the snow removal unit 11. However, by rotating forward, the guide plate 50 can be rotated forward while avoiding the head of the fixing pin 57, and by releasing the tilting force at a position where the guide plate 50 is directed vertically, That is, by tilting to the right side, the insertion hole 50 b can be fitted into the fixing pin 57, and the guide plate 50 can be pressed by the urging force of the spring 56 and the upright state can be maintained. In this way, the guide plate 50 can be maintained in the storage position facing the vertical direction.

  When the snow discharge plate 40 is in the retracted state, the guide plate 50 is rotated backward while being tilted against the urging force of the spring 56 in the direction opposite to the fixed pin 57, so that the fixed pin 57 and the insertion hole The engagement of 50b is released, and the guide plate 50 can be rotated rearward around the pivot pin 55.

In this manner, the guide plate 50 is positioned in the vertical direction, and the insertion hole 50b is fitted to the fixing pin 57, so that the guide plate 50 is biased by the spring 56 and is maintained in the vertical direction. In this state, the guide plate 50 does not get in the way during the snow removal work by the snow discharge plate 40.
Further, when the snow removal plate 40 is in the retracted state, the guide plate 50 is released from the fixing pin 57 and rotated rearward so that it can be rotated up and down, and the insertion portion 51 c is inserted into the locking pin 52. The locking pin 52 is engaged with the engaging portion 51a by inserting. At this time, the guide plate 50 can be tilted left and right, and the guide plate 50 can be easily engaged with the locking pin 52.
Further, when the guide plate 50 is rotated backward, the fixing pin 57 is positioned forward, so that no interference or the like occurs. In this way, the guide plate 50 can be placed in an upright storage state by rotating forward while tilting left and right, and can be discharged by rotating backward while tilting left and right from this state. The snowboard 40 can be easily operated in the retracted state rotated upward.

Next, a description will be given of a configuration that allows the left and right angle of the snow drainage plate 40 to be changed.
First, an embodiment in which the mounting plates 41 and 41 and the bracket 42 provided on the back surface of the snow discharge plate 40 are fixed with bolts 61 and 61 will be described.

  As shown in FIG. 6, a plurality of fixing holes 41 a, 41 a... Are opened on the mounting plate 41. ing. On the other hand, the fixing holes 42a and 42a are also opened on the left and right sides of the bracket 42 in accordance with the left and right intervals of the fixing holes 41a and 41a.

  The left and right fixing holes 41a and 41a are aligned with the fixing holes 42a and 42a, and bolts 61 and 61 are inserted and fixed with nuts. If you want to change the left and right (orientation) angle of the snow drain plate 40, remove the bolts 61 and 61 and then change to the desired angle, and align the positions of the left and right fixing holes 41a and 41a with the fixing holes 42a and 42a. Then, bolts 61 and 61 are inserted and fixed with nuts. However, a pivot hole may be opened at the center O1 and pivotally supported by a pin so that the mounting plates 41 and 41 and the bracket 42 are guided so as not to be displaced during rotation.

  By configuring in this way, it becomes possible to easily change the left and right angle of the snow drainage plate 40 by changing the insertion positions of the bolts 61 and 61, the fixing holes 41a and 41a, and the fixing holes 42a and 42a. When the snow removal machine is moved forward by performing the snow removal work by inclining the snow removal board 40 so as to be positioned diagonally forward and to the right, the snow removed can be pushed along the snow removal board 40 to the right. It becomes possible.

A second embodiment in which the left and right angles of the snow discharge plate 40 can be changed will be described.
As shown in FIGS. 7, 8, and 9, the mounting plates 41, 41 and the bracket 42 provided on the back surface of the snow drainage plate 40 are respectively fixed holes 41 a, 41 a. 42a is opened. The pivot plates 41b, 41b, 42b and 42b are also opened in the mounting plates 41 and 41 and the bracket 42 at the rotation center O1.
The pins 62a and 62a provided on the fixing plate 62 are fitted into the fixing holes 41a, 41a, 42a, and 42a so that they can be fixed at a desired angle.

That is, a rectangular plate body is bent in a U-shape when viewed from the side to form a fixed plate 62, arranged in the left-right direction with the open side of the fixed plate 62 facing upward, and the pins from both the left and right sides of the bottom surface of the fixed plate 62 62a and 62a are suspended downward according to the interval between the fixing holes 41a and 41a (42a and 42a). A through hole 62 b is opened at the left and right center of the fixed plate 62, a lever shaft 63 is inserted into the through hole 62 b, and the fixed plate 62 is fixed to the upper portion of the lever shaft 63. The upper portion of the lever shaft 63 is bent into an L shape to form a handle 63a. The lower part of the lever shaft 63 is inserted into the pivotal support holes 41a, 41b, 42b, and 42b.
A spring 64 is externally fitted on the lever shaft 63 between the upper plate and the lower plate of the bracket 42, and the lower portion of the spring 64 is locked by a fixing pin via a washer. The lever 64 is moved downward by the spring 64. Is being energized. That is, the fixing plate 62 fixed to the lever shaft 63 is pressed against the upper surface of the mounting plate 41.

With this configuration, the pins 62a and 62a are fitted into the upper (upper plate) fixing holes 41a, 41a, 42a, and 42a in a state in which the snow discharge plate 40 is attached. And when changing the right-and-left angle of the snow drainage board 40, it pulls up with the handle 63a of the lever shaft 63, and when it lifts with the fixed board 62, pin 62a * 62a will be fixed hole 41a * 41a * 42a *. Exit from 42a. When the snow drainage plate 40 is rotated in this state, the lever shaft 63 is rotated around the fulcrum, and is rotated to a desired angle and released, and the lever shaft 63 slides downward by the biasing force of the spring 64. The pins 62a and 62a are inserted into the fixing holes 41a, 41a, 42a, and 42a that match at the positions, and the mounting plates 41 and 41 and the bracket 42 are fixed, and the snow plate 40 is fixed at a desired angle. It can be done.
In this way, the lever shaft 63 serving as the operation member provided at the rotation center O1 is lifted to rotate the snow drainage plate 40 to a desired angle so that the positions of the fixing holes 41a, 41a, 42a, and 42a are aligned. The snow discharge plate 40 can be fixed simply by releasing the hand at a certain position, and the left and right angles of the snow discharge plate 40 can be changed and fixed with a simple operation.

1 is a side view of a wheel-type snow remover equipped with a snow removal device of the present invention. 1 is a side view of a crawler type snow removal machine equipped with a snow removal device of the present invention. The side view which has arrange | positioned the snow-removal board in the front part of the take-in auger. The side view of a snow drain plate. The perspective view of a guide plate attaching part. The top view which shows the 1st Example of the front-back rotation attachment part of a snow-removal board. The top view which shows the 2nd Example of the front-back rotation attachment part of a snow-removal board. Similarly side view. The front view of a lever axis | shaft and a fixed plate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Snow removal part 17 Blower 18 Auger housing 19 Stuck auger 40 Snow removal board 50 Guide board 52 Locking member

Claims (5)

  A snow removal plate is provided at the front portion of the snow removal portion where a scraping auger, blower, etc. are arranged at the front portion of the traveling portion, and is detachable and turnable up and down, and the guide plate is placed from the rear or upper surface of the snow removal plate. A snowplow that extends rearward and is configured to be able to lock the guide plate to a locking member provided on an auger housing.   The snow remover according to claim 1, wherein a locking member is provided at a guide plate mounting portion of the snow discharge plate so that the guide plate can be stored and held in the snow discharge plate.   A snow removal plate is provided at the front part of the snow removal part where a scraping auger, blower, etc. are arranged at the front part of the traveling part, so that it can be detached and rotated up and down, and the arm is rotated forward from both sides of the stirring auger. A snow remover characterized in that it protrudes freely and a snow plate is fixed to the front end of the arm.   The snow remover according to claim 3, wherein a stopper is provided in the vicinity of the pivot base of the arm. A snow removal plate is provided at the front of the snow removal portion where a scraping auger, blower, etc. are disposed at the front of the traveling portion, and is detachable and rotatable up and down, and the snow removal plate is configured to be rotatable left and right. A snowblower characterized by that.

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