JP2007309050A - Snowplow - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a snowplow capable of removing snow, without applying a high load to an engine, for performing snow removing work by using a machine used for the other use except for the snow removing work. <P>SOLUTION: This snowplow has a snow removing member 4 detachably installed on the tip 5a of a holding rod 5 of a manually pushing bush cutter 40 having a rotation transmitting part 9 of freely attaching and detaching a mowing blade, by transmitting rotational driving force of the engine 6 to the tip 5a of the holding rod 5 extended in the forward downward inclined direction from the engine 6, by installing the engine 6 and a wheel 7 in a frame 8. The snowplow member 4 has a snow raking rotary body 1 for raking and flying snow by rotating around the horizontal axis via the rotation transmitting part 9. The snow raking body 1 is composed of three short rotary bodies 10, etc. The respective short rotary bodies 10 have four snow raking blades 11, etc. attached at a predetermined pitch in the peripheral direction. The snow raking rotary body 1 is constituted by adjacent fitting the three short rotary bodies 10, etc. around a shaft member so that the snow raking blades 11 are mutually dislocated in the peripheral direction. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a snow removal device.

In a conventional snow removal device, a snow-collecting auger that rotates around a horizontal axis by the rotational driving force of the engine is attached to the front part of the vehicle body on which the engine is mounted. Is provided in the front of the housing so as to be enclosed, and a blower is provided at the rear part of the housing for rotating the auger to collect the snow collected in the central part with a chute ( For example, see Patent Document 1).
JP-A-2005-226336

  This conventional snow removal device rotates both the auger and the blower by the driving force from one engine and collects the snow in the center with the auger and the work to blow the snow upward with the blower at the same time. A very large torque is applied to the shaft connected to the engine, a very large load is applied to the engine, and a failure is likely to occur. In addition, since a high-power engine must be used, the cost is increased. Further, this snow removal device is a device dedicated to snow removal, and devices including an engine or the like cannot be used except during the winter season.

  Therefore, an object of the present invention is to provide a snow removal device that can remove snow without applying a large load to the engine and can perform snow removal using a machine that is used for other purposes than snow removal. .

  In order to achieve the above object, the snow removal device according to the present invention transmits the rotational driving force of the engine to the tip of a holding rod in which an engine and wheels are attached to a frame and extend forward and downwardly inclined from the engine. A hand-held type brush cutter having a rotation transmission portion to which a grass cutting blade is detachably attached, and a snow removal member that is detachably attached to a tip of the holding rod, and the snow removal member has a horizontal axis through the rotation transmission portion. It is equipped with a snow scraping rotating body that rotates around and scrapes off snow.

  The snow removal device according to the present invention further includes a snow removal member attached to a tip of a holding rod that is attached to the frame and has an engine and wheels attached to the frame and extends forward and downward from the engine. There is provided a snow scraping rotating body that rotates around a horizontal axis through a rotation transmitting portion that is provided at the tip of the kite and transmits the rotational driving force of the engine and scrapes off the snow.

  In addition, the snow removal member is provided in the vicinity of the shaft member that is attached to the rotation transmission unit and rotates around the horizontal axis and the rear of the snow scraping rotary member that is attached to the tip of the holding rod. A housing member that guides the scraped snow upward, and the snow scraping rotating body has an insertion hole portion that fits around the shaft member, and rotates integrally around the shaft member and the horizontal axis. Each of the short rotators has a plurality of snow scraping blades attached at a predetermined pitch in the circumferential direction, and the plurality of short rotators are arranged in the circumferential direction with the snow scraping. The snow rotator is configured by being externally fitted to the shaft member so that the blades are displaced from each other.

Further, the shaft member has an outer peripheral surface having a regular hexagonal cross section, and the insertion hole portion of each of the short rotating bodies is formed in a regular hexagonal shape that can be fitted to the shaft member with almost no gap.
Further, the housing member is integrally formed along a snow throwing wall portion that guides snow upward formed in a substantially J-shape having an upwardly inclined front cross section, and along a lower edge of the snow throwing wall portion. And a snow crawl side.

The present invention has the following remarkable effects.
The snow removal device according to the present invention includes a snow removal member that is detachably attached to the tip of the holding rod of the hand-held type brush cutter having a holding rod having a rotation transmitting portion at the tip of which the grass cutting blade is detachable. By replacing the mowing blade attached to the transmission part with a snow removal member, one hand-held type brush cutter can be used exclusively for mowing in the summer and for snow removal in the winter, and has an engine, wheels, etc. A hand-held machine can be used effectively for many purposes. Since the usage can be changed simply by attaching / removing the grass cutting blade and the snow removal member to / from the rotation transmitting portion, the replacement work is not troublesome and convenient. In addition, since it is not necessary to purchase a mowing machine and a snow removal machine, the cost can be reduced.
The snow removal member includes a shaft member that is attached to the rotation transmission portion and rotates around a horizontal axis, and a snow scraping rotation body that includes a plurality of short rotation bodies that are externally fitted to the shaft member. Since the body is fitted on the shaft member so that the respective snow scraping blades are out of phase with each other in the circumferential direction to form the snow scraping rotating body, the timing at which the snow scraping blades of the respective short rotating bodies approach the snow is shifted. Therefore, the snow scraping blades of all the short rotating bodies do not scrape snow at the same time. Therefore, the torque received by the rotation transmission unit at the moment of scraping the snow is about one third of that of the snow scraping blade that simultaneously scrapes snow over the entire axial length, and the load on the engine is greatly reduced. . Therefore, the snow scraping rotating body rotates smoothly, snow removal work can be performed efficiently, and failure of the engine or the like can be suppressed.
In addition, when manufacturing all of the snow rotator as a single unit, the manufacturing cost of the mold is very high, and it is very difficult to make the mold highly accurate. Thus, the cost of the mold can be greatly reduced, and a highly accurate mold can be manufactured.

In addition, since the outer peripheral surface of the shaft member and the insertion hole portion of each short rotator are formed in a regular hexagon shape, for example, three short rotators are externally fitted to the shaft member with a phase shift of 120 °. can do. Then, it is sufficient to manufacture a short rotating body having the same shape, and the cost can be reduced.
In addition, the snow swept by snow scraping blades can be guided and blown forward by the J-shaped housing member, so that the snow can be blown far away with a simple structure, and snow can be removed smoothly. It can be performed. Furthermore, since the snow scooping side portion of the housing member bites into the snow accumulated on the ground surface, the snow can be smoothly sent to the snow scraping rotating body, and snow removal can be performed efficiently. Also, the housing member has a snow throwing wall part and a snow scooping side part formed integrally, so it takes less time and effort compared to one that is manufactured as a separate member and integrated with bolts and nuts etc. There is no fear that the bolts and nuts are loosened and separated, making it a robust structure.

Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments.
As shown in FIGS. 1-3, one Embodiment of the snow removal apparatus which concerns on this invention is provided with the snow removal member 4 attached to the hand-held type brush cutter 40 for mowing instead of a mowing blade.
In the hand-held type brush cutter 40, the engine 6 and the wheel 7 are attached to the frame 8, and the rotational driving force of the engine 6 is transmitted to the tip 5 a of the holding rod 5 that extends from the engine 6 in the forward and downward tilt direction. The blade has a rotation transmitting portion 9 that can be attached and detached. The rotation transmission unit 9 has a gear case 18 provided at the tip 5 a of the holding rod 5, and the gear in the engine 6 and the gear case 18 is attached to a drive shaft that is rotatably disposed inside the holding rod 5. Thus, the rotary shaft portion 19 is rotatably projected from the mounting disk portion 17 of the gear case 18. Reference numeral 42 denotes a spherical blade height setting tool which is attached in the middle of the holding rod 5 and keeps the height of the mowing blade constant.
When used as a hand-held type brush cutter 40 for mowing, the rotational axis of the rotary shaft portion 19 is oriented in a substantially vertical direction, and a mowing blade is attached (not shown). FIG. 1 shows a state in which the cutting blade is removed from the rotation transmission unit 9, the rotation axis of the rotation shaft unit 19 is set in the horizontal axis L direction, and the snow removal member 4 is attached to the rotation transmission unit 9. Show.

  Next, the snow removal member 4 will be described. The snow removal member 4 is attached to the rotation shaft portion 19 of the rotation transmission portion 9 and rotates around the horizontal axis L via the rotation transmission portion 9 (shaft member). And a snow scraping rotary body 1 that rotates around the horizontal axis L and scrapes off the snow, and a snow scraping rotating body 1 that is attached to the front end 5a of the holding rod 5 and is provided near the rear of the snow scraping rotary body 1. A housing member 3 for guiding the scratched snow to fly upward and far away.

  First, in FIGS. 3 to 6 and 11, the shaft member 2 is fitted to a regular hexagonal tubular pipe member 21 and one end 21 a of the pipe member 21, and the rotation shaft portion 19 of the rotation transmitting portion 9 is screwed. A mounting end member 22 having a female screw hole 22a to be attached; a shaft end member 23 having a shaft portion 23a fitted in the other end 21b of the pipe member 21 and projecting in the longitudinal direction (axial center L direction); Have The other end 21b of the pipe member 21 and the shaft end member 23 are provided with insertion holes 24 extending in the radial direction. After the snow scraping rotor 1 is externally fitted to the shaft member 2, the insertion holes 24 are inserted. If the misalignment prevention pin 25 is inserted into the rotary body 1, the movement of the rotating body 1 in the direction of the axis L can be prevented (see FIG. 3). The rotating direction 50 of the rotating body 1 and the shaft member 2 is the forward direction, and is counterclockwise when viewed from the left side in the axis L direction.

1 to 3, the snow scraping rotating body 1 is composed of three short rotating bodies 10 that rotate integrally with the shaft member 2 around the horizontal axis L. In other words, the snow scraping rotary body 1 is divided into three short rotary bodies 10 in the axial center L direction.
Each short rotating body 10 is arranged in parallel with a predetermined interval and has a disc portion 14, 14 having an insertion hole portion 12, 12 in the center, and an inner side from the insertion hole portion 12, 12 of the disc portion 14, 14. Are integrally formed so as to connect the regular hexagonal cylindrical short tube portions 13 and 13 and the inner surfaces 14a and 14a of the pair of disc portions 14 and 14 and arranged at a predetermined pitch in the circumferential direction X. And four snow scraping blades 11. The insertion hole portion 12 is formed in a regular hexagonal shape that can be fitted to the shaft member 2 without a substantial gap. Equidistribution center angle θ _{11 of} snow scraping blade 11 ────In the example of the figure, 90 ° ──── and replacement pitch angle θ _{12 for} inserting shaft member 2 into insertion hole 12 of short rotating body 10 ─── ─In the example of the figure, set 60 ° ──── different from each other and not to be an integral multiple of each other.

Each snow scraping blade 11 has a shape obtained by bending a band plate material into a U-shaped (L-shaped) cross section with a bent portion, and the first (front) band on the leading side in the rotation direction 50 through the bent side. It consists of a plate part 15 and another (rear) band plate part 16 on the rear side. The one band plate portion 15 is shorter than the other band plate portion 16 and is arranged so that the respective band plate portions 15 and 16 expand in the outer diameter direction R. In addition, the edge 15a of the one band plate 15 is spaced from the outer peripheral edge of the disk part 14 with a predetermined interval, and the edge 16a of the other band plate 16 extends until it contacts the outer peripheral edge of the disk part 14. It is installed. Thereby, when the snow scraping rotating body 1 (short rotating body 10) rotates and the snow scraping blade 11 scratches the snow S, the front strip 15 passes through the snow S without scratching, and immediately after that, the rear side Since the strip plate portion 16 scratches the snow accumulation S (see FIG. 6), each snow scraping blade 11 reliably crawls the snow S. A plurality of ribs 13a are formed at a predetermined pitch from the outer periphery of the short cylindrical portion 13 to the inner surface 14a of the disc portion 14, and the short rotating body 10 has a strong structure.
The three short rotators 10 are in close contact with each other, and the positions of the snow scraping blades 11 of the three short rotators 10 are 120 ° in the circumferential direction X. The shaft member 2 is externally fitted so as to be displaced (see FIGS. 3 to 6).

Next, as shown in FIGS. 8 to 10, the housing member 3 has a snow throwing wall portion 31 that is formed in a substantially J-shaped cross-sectionally upwardly inclined shape and guides snow upward, and a rear side portion. The side wall portions 35, 35 in the front-rear direction integrally formed along each side portion of the snow throwing wall portion 31, and the snow crawl side portion 33 integrally formed along the lower end edge 32 of the snow throwing wall portion 31. And having. The snow throwing wall portion 31 includes a flat plate portion 31b having a forwardly inclined shape in a cross section and a bent plate portion 31a integrally extending downward from a lower end edge of the flat plate portion 31b. The side wall 35A of one of the pair of left and right side walls 35, 35 (left side in the embodiment) has a mounting disk portion 17 of the gear case 18 fixed to the lower portion thereof with a bolt and a rotating shaft portion 19 It has a fixed annular portion 36 having a through (circular) opening 36a. In the fixed ring portion 36, a plurality of female screw holes (for example, three female screw holes are annularly formed at a predetermined pitch) are formed around the opening 36a. The other (right) side wall 35B has a plurality of bolt insertion holes 38 (for example, three annularly at a predetermined pitch) for fixing a later-described bearing member 46 (see FIGS. 3 and 12) at the lower part thereof. Is formed.
Further, the snow scooping side portion 33 includes a belt plate scooping portion 33b that is inclined forward and integrally projecting along the lower end edge 32 of the snow throwing wall portion 31, and a rear side from the front edge of the scooping portion 33b. And a belt-like bottom portion 33a that is bent into a horizontal shape and integrally formed horizontally. The front end edges of the scooping portion 33b and the bottom portion 33a form a scooping edge portion 37 having an acute cross section. Also, a plurality of thin-walled reinforcing ribs 34 that integrally connect the upper surface portion of the bottom portion 33a, the rear surface portion of the scooping portion 33b, and the lower surface portion of the snow throwing wall portion 31 are arranged at a predetermined pitch in the lateral direction. The snow crawl side 33 is solid. Further, the front side portion of each side wall portion 35 has an upper portion formed in a vertical side shape, and a lower portion formed in a backward downward inclined shape (see FIGS. 9 and 10).
The housing member 3 shown in FIGS. 3 and 8 is a view seen from a direction (indicated by an arrow 49 in FIGS. 9 and 10) orthogonal to the snow throwing wall portion 31.

  3 and 12, the snow removal member 4 has a bearing member 46 that is attached to the inner surface side of the side wall portion 35B of the housing member 3 and rotatably holds the shaft portion 23a of the shaft member 2. Specifically, the bearing member 46 includes a (radial) bearing 47 having an inner ring into which the shaft portion 23a of the shaft member 2 is inserted, and a bearing body 48 having a hole portion 48a into which the outer ring of the bearing 47 is inserted. Have. The bearing body 48 has a substantially triangular shape, and has female screw holes corresponding to the bolt insertion holes 38 of the right side wall portion 35B of the housing member 3. And the bearing main body 48 is attached to the inner surface of this side wall part 35B with a volt | bolt. Since one end of the shaft member 2 is rotatably held by the bearing member 46, the shaft center of the shaft member 2 rotates smoothly without being shaken, and the snow removal work becomes smooth.

  1 and 2, reference numeral 26 denotes a fixing rod for fixing one end 26a and the other end 26b to the holding rod 5 and the rear portion of the housing member 3 so as to fix the direction of the snow removal member 4, respectively. It is a member. The one end 26a is composed of an attachment / detachment portion that can be opened and closed by a hinge, for example, surrounds the holding rod 5 and is fixed by a screw or the like, and the other end 26b is an attachment piece that can be attached / detached to the rear surface of the housing member 3 Become.

FIG. 13 shows another embodiment of the snow removal device according to the present invention, and the wheel 7 has a small hollow barrel shape (shell structure) formed by blow molding, unlike that of FIG. The blade height setting tool 42 is formed in the same size as the size. The wheel 7 of the brush cutter 40 in FIG. 1 is formed in a tire shape having a larger diameter than the blade height setting tool 42 and is not shown in the figure, but has anti-slip irregularities formed on the ground contact surface. Also good. 1 and 13 are provided with a pair of auxiliary wheels on the left and right sides of the wheel 7.
In FIG. 13, when the hand-held type brush cutter 40 is used for mowing, the blade height setting tool 42 and the guard member 43 are attached to the holding rod 5, and the rotation shaft portion ( (Not shown) is oriented in the vertical direction, and the mowing blade 44 is attached (a state indicated by a two-dot chain line). The guard member 43 is for preventing grass from flying to the user side, and is detachably attached to the holding rod 5 in front of the blade height setting tool 42.
Next, when the brush cutter 40 is used for snow removal, the guard member 43 and the mowing blade 44 are removed from the holding rod 5 and the rotation transmission portion 9 (see arrow 51), and the rotation shaft portion of the rotation transmission portion 9 is removed. The fixed rod member 26 and the snow removal member 4 are attached to the rotation transmitting portion 9 in the horizontal direction (see arrow 52).
In the hand-held type brush cutter 40 in FIG. 1, when used for mowing, a guard member and a mowing blade are attached to the holding rod 5 and the rotation transmission portion 9 (not shown). , The replacement operation is performed in the same procedure as described above with reference to FIG.

1 to 6 and 10, when the engine 6 of the hand-held brush cutter 40 is started, the shaft member 2 and the snow scraping rotator 1 connected to the rotating shaft portion 19 of the rotation transmitting portion 9 are Around the horizontal axis L, it rotates forward as indicated by the arrow 50. Then, when the brush cutter 40 is moved forward with the handle 41, the scooping edge 37 of the snow scooping side 33 scoops the snow cover S on the surface, and the scooped snow S pushes the scooping scooping part 33b forward and downward. After sliding up, the snow S is smoothly sent to the snow scraping rotor 1.
As described above, the three short rotating bodies 10 constituting the snow scraping rotating body 1 rotate integrally with the positions of the respective snow scraping blades 11 being shifted from each other by 120 ° in the circumferential direction X. (See FIGS. 4 to 6), the timing at which each snow scraping blade 11 scrapes the snow S is shifted by a period of 120 ° in each short rotating body 10, so that the snow scraping blades 11 of all the short rotating bodies 10. S is not scratched. Therefore, the torque received by the short rotating body 10 and the shaft member 2 when scraping the snow S is about one third that of the snow scraping blade scratching the snow S over the entire length in the axial direction, and is applied to the engine 6. The load is greatly reduced.
Also, unlike an electric snowblower, snow removal can be performed even in places where the power cord does not reach. Moreover, since the rotational speed of the snow scraping rotating body 1 can be changed by changing the rotational speed of the engine in accordance with the amount of snow, the gear box need not be provided in the snow removal member 4 and the number of parts is small.

When the snow scraping blade 11 is in a position corresponding to the curved plate portion 31a of the snow throwing wall portion 31 of the housing member 3, the snow S swung by the snow scraping blade 11 is beaten by the snow scraping blade 11 by the curved plate portion 31a. When the snow scraping blade 11 reaches the vicinity of the top portion, it slides out along the front surface of the flat plate portion 31b of the snow throwing wall portion 31 and jumps out in the upward upward direction (see arrow 28 in FIG. 10). . Moreover, snow is not scattered sideways by the guards of the side wall portions 35, 35. In this manner, the housing member 3 can guide and fly snow in a certain direction that is inclined forward and upward.
The snow removal member 4 in FIGS. 1 and 2 is attached so that it faces slightly to the left from the front, but the design can be changed freely, and it may be attached so that it faces slightly to the right or directly in front. Further, the snow removal member 4 is formed so that the rotation transmitting portion 9 is attached to the left side wall portion 35A of the housing member 3, but the entire structure of the snow removing member 4 is reversed left and right, and the rotation transmitting portion 9 is disposed on the right side wall. You may form so that it may attach to the part 35B (illustration omitted).
Further, in the present invention, the snow scraping rotator 1 is composed of three short rotators 10. However, the snow scraping rotator 1 is composed of four or more short rotators 10. It's also good.
Further, in the present invention, the mowing blade of the hand-held type brush cutter 40 for mowing is replaced with the snow removing member 4, but a hand-held snow removing machine having the snow removing member 4 as in the present invention is manufactured. Also good. That is, the snow remover is configured by attaching the snow removal member 4 to the tip 5a of the holding rod 5 in which the engine 6 and the wheels 7 are attached to the frame 8 and extend from the engine 6 in the forward downward tilt direction.
1 and 13, the blade height setting tool 42 attached to the brush cutter 40 causes the tip 5a of the holding rod 5 to swing not only forward and backward, but also from side to side and lightly. ──── You can remove snow widely and efficiently just like sweeping with a broom.

  As described above, in the snow removal device according to the present invention, the rotational driving force of the engine 6 is applied to the front end 5a of the holding rod 5 in which the engine 6 and the wheels 7 are attached to the frame 8 and extend from the engine 6 in the forward and downward tilt direction. Is provided with a snow removing member 4 detachably attached to the tip 5a of the holding rod 5 of the hand-held type brush cutter 40 having the rotation transmitting portion 9 to which the mowing blade is detachably attached. The snow removing member 4 includes the rotation transmitting portion 9 Since the snow scraping rotating body 1 that rotates around the horizontal axis L through the blade and scrapes and blows off the snow is provided, by replacing the mowing blade attached to the rotation transmitting portion 9 with the snow removing member 4, one hand press The brush cutter 40 can be used exclusively for mowing in the summer and for snow removal in the winter. A hand-held machine having the engine 6 and the wheels 7 can be effectively used for various purposes. Since the usage can be changed simply by attaching / removing the grass cutting blade and the snow removal member 4 to / from the rotation transmitting portion 9, the replacement work is not troublesome and convenient. In addition, since it is not necessary to purchase a mowing machine and a snow removal machine, the purchase cost can be reduced.

  Further, the snow removal device according to the present invention includes a snow removal member 4 attached to a tip 5a of a holding rod 5 in which an engine 6 and wheels 7 are attached to a frame 8 and extended from the engine 6 in a forward and downward tilt direction. The member 4 includes a snow scraping rotator 1 that rotates around a horizontal axis L through a rotation transmitting portion 9 that is provided at the tip 5a of the holding rod 5 and transmits the rotational driving force of the engine 6 to scrape and fly snow. Therefore, by replacing the mowing blade attached to the rotation transmission part 9 with the snow removing member 4, the device composed of the engine 6, wheels 7, etc. can be effectively used for a variety of purposes only for mowing in the summer and for snow removal in the winter. it can. Since the usage can be changed simply by attaching / removing the grass cutting blade and the snow removal member 4 to / from the rotation transmitting portion 9, the replacement work is not troublesome and convenient. In addition, since it is not necessary to purchase a mowing machine and a snow removal machine, the purchase cost can be reduced.

Further, the snow removal member 4 is attached to the rotation transmission unit 9 and rotates around the horizontal axis L, and is attached to the front end 5a of the holding rod 5 and is provided in the vicinity of the rear of the snow scraping rotator 1, and the snow scraping rotator. 1 and a housing member 3 for guiding the scraped snow upward, and the snow scraping rotating body 1 has an insertion hole portion 12 fitted around the shaft member 2 and around the shaft member 2 and the horizontal axis L. And each of the short rotators 10 has a plurality of snow scraping blades 11 attached at a predetermined pitch in the circumferential direction X, and the plurality of short rotators 10 Are fitted on the shaft member 2 adjacently so that the snow scraping blades 11 are displaced from each other in the circumferential direction X, and the snow scraping rotating body 1 is configured. Since the timing of approaching the snow cover S is shifted, the snow scraping blades 11 of all the short rotating bodies 10. It will not be scratching. Therefore, for example, if the short rotating body 10 is divided into three parts, the torque received by the rotation transmission unit 9 when scraping the snow S is compared to that the snow scraping blade scrapes the snow accumulation S at the same time over the entire length in the axial direction. The load on the engine 6 is greatly reduced. Therefore, the snow scraping rotator 1 rotates smoothly, snow removal work can be performed efficiently, and failure of the engine 6 and the like can be suppressed.
Further, when the snow scraping rotating body 1 is manufactured as a whole, the cost of the mold is very high, and it is very difficult to make the mold highly accurate, but it is divided into a plurality of short rotating bodies 10. By doing so, the cost of the mold is greatly reduced, and a highly accurate mold can be manufactured.
Further, since the snow struck by the snow scraping blade 11 can be guided and blown forward and upward by the housing member 3, snow can be removed smoothly.

  Further, the shaft member 2 has an outer peripheral surface 20 having a regular hexagonal cross section, and the insertion hole portion 12 of each short rotating body 10 is formed in a regular hexagonal shape that can be fitted to the shaft member 2 with almost no gap. Therefore, a plurality of short rotating bodies 10 having the same shape (including the snow scraping blades 11 having the same arrangement) are externally fitted to the shaft member 2 so that the respective snow scraping blades 11 are out of phase in the circumferential direction X. Can do. Therefore, for example, the three short rotators 10 can be externally fitted to the shaft member 2 with phases shifted by 120 °. And since it is not necessary to manufacture the short rotary body 10 in which the arrangement | positioning of the snow scraping blade 11 differs, manufacturing cost can also be reduced.

Further, the housing member 3 is integrally formed along a snow throwing wall portion 31 for guiding the snow formed upward in a substantially J-shape having a forwardly inclined shape in the cross section along the lower end edge 32 of the snow throwing wall portion 31. Therefore, when the brush cutter 40 is moved forward, the snow crawl side 33 bites into the snow piled up on the ground surface, so that the snow is smoothly sent to the snow scraping rotator 1. And can remove snow efficiently.
Further, as the short rotator 10 rotates, the snow scooped by the snow scraping blades 11 is guided along the front surface of the snow throwing wall portion 31 of the housing member 3, so that the snow is moved farther in the upward upward direction. It can be skipped and snow removal work can be performed smoothly.
Moreover, since the snow throwing wall part 31 and the snow crawl side part 33 are integrally formed, the housing member 3 is troublesome compared with what is manufactured as a separate member and integrated with bolts and nuts or the like. In addition, there is no fear that the bolts and nuts are loosened and separated during use, and a robust structure can be obtained.

1 is a perspective view showing an embodiment of a snow removal device according to the present invention. It is a principal part top view. It is a principal part front view. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is CC sectional drawing of FIG. It is DD sectional drawing of FIG. It is a front view which shows a housing member. It is a side view which shows a housing member. It is EE sectional drawing of FIG. It is a partial cross section side view which shows a shaft member. It is a front view which shows a bearing member. It is a perspective view for explanation which shows other embodiments of the snow removal device concerning the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Snow scraping rotary body 2 Shaft member 3 Housing member 4 Snow removal member 5 Holding rod 5a Tip 6 Engine 7 Wheel 8 Frame 9 Rotation transmission part
10 Short rotating body
11 Snow blade
12 Insertion hole
20 Outer surface
31 Snow wall
32 Bottom edge
33 Snowy side
40 Hand-operated brush cutter L Horizontal axis X Circumferential direction

Claims (5)

  The engine (6) and the wheel (7) are attached to the frame (8), and the engine (6) A snow removing member (40) having a rotation transmitting portion (9) to which a rotational driving force is transmitted and a grass cutting blade is detachably attached, which is detachably attached to the tip (5a) of the holding rod (5) ( 4), and the snow removal member (4) includes a snow scraping rotating body (1) that rotates around the horizontal axis (L) via the rotation transmitting portion (9) to scrape and fly the snow. Features a snow removal device.   A snow removal member (4) attached to the tip (5a) of a holding rod (5) in which the engine (6) and the wheel (7) are attached to the frame (8) and extend from the engine (6) in a forward and downwardly inclined direction. ), And the snow removal member (4) is provided at the tip (5a) of the holding rod (5) via a rotation transmission part (9) to which the rotational driving force of the engine (6) is transmitted. (L) A snow removal device comprising a snow scraping rotating body (1) that rotates around and scrapes off snow. The snow removing member (4) is attached to the shaft member (2) that is attached to the rotation transmitting portion (9) and rotates about the horizontal axis (L), and the tip (5a) of the holding rod (5). A housing member (3) provided near the rear of the snow scraping rotating body (1) and guiding the snow scraped by the snow scraping rotating body (1) upward;
The snow scraping rotating body (1) has an insertion hole (12) that fits around the shaft member (2), and rotates integrally around the shaft member (2) and the horizontal axis (L). Each of the short rotating bodies (10) has a plurality of snow scraping blades (11) attached at a predetermined pitch in the circumferential direction (X),
In addition, a plurality of the short rotating bodies (10) are externally fitted to the shaft member (2) so that the snow scraping blades (11) are displaced from each other in the circumferential direction (X). The snow removal device according to claim 1 or 2, wherein the body (1) is configured.   The shaft member (2) has an outer peripheral surface (20) having a regular hexagonal section, and the insertion hole (12) of each short rotating body (10) is substantially spaced from the shaft member (2). The snow removal device according to claim 2 or 3, wherein the snow removal device is formed in a regular hexagonal shape that can be externally fitted. The housing member (3) includes a snow throwing wall portion (31) for guiding snow upwardly formed in a substantially J-shape having a forwardly inclined shape in a cross section and a lower end edge of the snow throwing wall portion (31) ( The snow removal device according to claim 2, 3 or 4, further comprising a snow crawling side portion (33) integrally formed along 32).

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