JP2009221711A - Portable simple snow plow - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable simple snow plow which utilizes an available portable bush cutter, and which can be utilized as a simple snow plow by the substitution of a snow removal attachment. <P>SOLUTION: A snow removal section 2 comprises: a vertical case 9; a snow collecting auger 13, the vertical rotating shaft 12 of which is rotatably journaled on the vertical case 9; a horn-shaped snow-throwing pressurization portion 15 which is formed of a snow-throwing guide wall 14 provided on the upper inner surface of the vertical case 9; a snow scraping port 16 which is opened in the peripheral surface of the vertical case 9; a snow throwing port 17 which is opened at the terminal end of the snow-throwing pressurization section 15; a chute 19 which is swingably supported over a required range around the vertical rotating shaft 12; an attachment arm 20 which is joined to the upper outer periphery of the vertical case 9; an upper cover 22 for covering a joint between a boss 21 joined to the upper end of the vertical rotating shaft 12 and a rotary table 8; and a lower cover 23 for protecting a lower bearing portion 11. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a portable simple snow remover that can be used as a simple snow remover by using a commercially available portable brush cutter and attaching a snow removal attachment.

Conventionally, as a portable work machine using a brush cutter, a snow removal technique has been proposed in which the rotary working means is a rotary blade for snow removal (see Patent Document 1).
In this known technique, the first drive shaft (12) of the operation handle rod (10) of the brush cutter and the second drive shaft (21) of the work machine main body (20) are connected to the snow removal rotary blade ( 30) is attached to a work shaft (22) having a horizontal axis as a rotation axis, and the snow scraped off by the blade (31) is thrown out by centrifugal force around the horizontal axis.
Therefore, unlike the snow blown by the auger, the snow removal ability is low and the snow throwing direction cannot be controlled.

Moreover, the technique which provided the snow removal rotary body in the brush cutter as a brush cutter attachment is proposed (refer patent document 2).
In this known technique, a snow removal rotating body (120) as a brush cutter attachment presses a plurality of blades (122) arranged in the form of a centrifugal fan against the upper surface of the snow accumulation surface to open a discharge port ( OP) to discharge snow.
However, in snow removal work, from any position on the snow cover surface, the discharge port is blocked due to snow removal and snow cannot be removed, and snow must be removed at a position and posture where the discharge port is not blocked. There is a drawback that the degree of freedom of snow removal work is narrow, such as being unable to move in the circumferential direction, that is, in the direction perpendicular to the axis of the snow removal rotating body.

Furthermore, a snow removal device in which the mowing blade of a brush cutter is replaced with a snow removal member has been proposed (see Patent Document 3).
This known technique is based on a hand-held type brush cutter (40) provided with wheels (7), and a snow scraper blade having a L-shaped cross section in which a snow removal member (4) of the brush cutter rotates about a horizontal axis L ( 11) Snow removal.
However, since it is based on a hand-operated brush cutter with wheels, it is quite heavy like a generally used small snowplow and cannot be used for snow removal on the roof.
JP 2003-180117 A JP 2007-289040 A JP 2007-309050 A

  In view of the above, the present invention provides a snow removal technique using a brush cutter that is easy to join with the rotary head of the brush cutter, has a large snow removal capability, and is suitable for snow removal on the roof. It is an object of the present invention to provide a portable and simple snow remover that has a wide range of work freedom, such as snow removal from the snow wall and snow removal from the snow wall while allowing the snow to be removed while widening to the left and right.

  In order to achieve the above object, the portable simple snow remover of the present invention has a drive shaft built in an operating rod to which a U-shaped two-handed handle is attached, and an output shaft of a drive source is connected to one end of the drive shaft. In a portable simple snow remover comprising a brush cutter main body portion to which an input shaft of a rotary head is joined to the other end and a snow removal portion in which a rotary blade for snow removal is detachably attached to an output shaft of the rotary head. The snow removal part is composed of a snow collecting auger in which a vertical rotation shaft of the rotary blade for snow removal is pivotally supported on a vertical case, and the vertical case is snow trapped on the peripheral surface from the upper required position to the lower end part. A mouth is opened and attached to the operation rod, a corner flute-shaped snow throwing booster is installed in the upper part of the vertical case, and the snow thrower opening at the end of the snow throwing booster is The swinging means is provided with a swinging means over the required range around the vertical rotation axis of the snow collecting auger. Chute is supported is made is continuously provided to.

  In the portable simple snow remover of the present invention, a drive shaft is built in an operating rod to which a U-shaped two-hand handle is attached, an output shaft of a drive source is connected to one end of the drive shaft, and a rotary head is connected to the other end. In a portable simple snow remover composed of a brush cutter main body portion to which the input shaft of the brush is joined and a snow removal portion in which a rotary blade for snow removal is attached to the output shaft of the rotary head, it is linked to the swinging means of the chute. A chute control unit is provided on the operating rod.

According to the portable simple snow remover of the present invention, it is possible to remove snow in the descending direction where the bottom of the vertical case is placed on the snow surface, to remove snow toward the snow wall, or to remove snow while swinging the vertical case left and right. Since the snow removal work mode can be widely used, the work freedom is wide.
In addition, the snow collecting auger with a vertical rotating shaft can remove snow by removing the snow with a snow squeeze that is tall with respect to the diameter, so the snow removal ability is also high, and the scraped snow is a snow flute formed in a square flute shape Since it is pressed by the snow throwing pressure booster with a guide wall, it is vigorously guided to the chute from the snow outlet, and the snow throwing direction can be controlled by the rotating handle of the chute control part at hand. Snow can be removed quickly and efficiently.

In addition, since the snow trap of the vertical case can be swung to the left and right with a U-shaped two-handed handle, the snow removal width is easily widened, and the descent due to its own weight is also added to save snow on the roof. It is.
In addition, the snow removal unit can be detachably joined to the upper end of the vertical rotation shaft with an integral boss via a rotating plate that attaches the grass cutting blade to the output shaft of the rotary head of the brush cutter, and supports the chute control unit. In addition, the attachment of the mounting arm of the vertical case to the operating rod can be held between the upper and lower divided joints, so that the joining to the brush cutter body is very simple.

An embodiment of the portable simple snow remover of the present invention will be described below with reference to the accompanying drawings. As shown in FIG. 1, the portable simple snow remover includes a brush cutter body 1 and a snow remover 2.
The brush cutter body 1 includes a long hollow tubular operating rod 4 to which a U-shaped two-handed handle 3 and a shoulder belt (not shown) are attached, and a drive shaft (not shown) built in the operating rod 4. 2), a drive source 5 connected to one end of the drive shaft (not shown) at one end of the operation rod 4 and an output shaft (not shown) connected thereto, and the other of the operation rod 4 shown in FIG. The rotary head 6 has an input shaft (not shown) connected to the other end of a drive shaft (not shown) at one end, and a rotary disk 8 pivotally attached to the output shaft 7 of the rotary head 6.
As shown in FIG. 1, the snow removal portion 2 includes an elongated cylindrical vertical case 9, an upper bearing portion 10 of the vertical case 9, and a vertical rotation shaft 12 that is rotatable about a lower bearing portion 11. A snow collecting auger 13 to be supported, a snow flute-shaped snow throwing pressure increasing portion 15 formed by a snow throwing guide wall 14 provided on the upper inner surface of the vertical case 9 shown in FIG. 2, and the upper required position to the lower end. A snow scraping port 16 opened on the peripheral surface, a snow throwing port 17 opened at the end of the snow throwing pressure increasing unit 15, and a snow collecting auger 13 provided with a swinging means 18 at the snow throwing port 17. A chute 19 that is swingably supported over a required range around the vertical rotary shaft 12, a mounting arm 20 that is joined to the upper outer periphery of the vertical case 9, and a top end of the vertical rotary shaft 12 are joined. An upper cover 22 that covers a joint portion between the boss 21 and the rotating disk 8, and the lower bearing portion 11. A lower cover 23 to protect, consisting of chute controller 24.

As shown in FIG. 2, the swinging means 18 includes a rotary drum 25 integral with the chute 19, a pedestal 26 provided around the upper portion of the rotary drum 25, and a required upper surface of the pedestal 26. A chain attachment 27 arranged as a single group on a circular arc with a radius of curvature, a large-diameter cylindrical portion 28 fitted over the upper portion of the vertical case 9 at the base of the rotating drum 25, and a peripheral edge at the upper end of the vertical case 9 The guide flange 29 is provided horizontally and a slide guide portion 31 that slidably holds the guide flange 29 from above and below via a sliding member 30 at the lower end of the large-diameter cylindrical portion 28. In addition, you may provide the sliding material 30 in the slide guide part 31 side.
As shown in FIG. 1, the chute control unit 24 is attached to the operating rod 4 by supporting a sprocket wheel 32 meshing with the array group of the chain attachments 27 and a rotation shaft 33 of the sprocket wheel 32. A support body 34 is attached to the operating rod 4 in the vicinity of the U-shaped two-handed handle 3, and is attached to a gear box 37 in which a decelerating means using a worm 35 and a worm gear 36 is incorporated, and to a shaft portion of the worm 35. A rotating handle 38, and a flexible shaft 39 that is pivotally attached to a shaft portion of the worm gear 36 and a rotating shaft 33 that is pivotally supported by the support 34.

Further, as shown in detail in FIG. 2, the upper bearing portion 10 has an upper seat 40 welded to the upper end of the vertical case 9 and a fitting hole 41 penetrating in the center of the upper seat 40. A bearing housing 42 that is fitted with a boss portion and is fixed to the upper surface of the convex portion of the upper seat 40 with a bolt, and an inner ring of a bearing 43 that is fitted in the bearing housing 42 and supports the vertical rotating shaft 12 is formed into the upper small-diameter shaft portion 44. A fixing nut 45 for fixing (including a washer with a tongue for preventing rotation) and a bearing holder 46 that is fixed to the bearing housing 42 with a bolt by shim adjustment to fix the outer ring of the bearing 43. A seal member is provided in each of the fitting portion with the vertical rotating shaft 12 and the fitting portion with the upper small-diameter shaft portion 44 of the bearing holder 46.
Further, as shown in detail in FIG. 3, the lower bearing portion 11 has a lower seat 48 fixed to the ring seat 47 welded to the lower end of the vertical case 9 with a bolt, and a center of the lower seat 48. A boss portion is fitted in the fitting hole 49 provided in a through hole, and the bearing housing 50 is fixed to the inner surface of the lower seat 48 with bolts on the upper surface (inner surface) of the convex portion. The vertical rotation shaft 12 is fitted in the bearing housing 50. A bearing 52 that supports the lower small-diameter shaft portion 51, a fixing nut 53 (including a washer with a tongue for preventing rotation) that fixes an inner ring of the bearing 52 to the lower small-diameter shaft portion 51, and an outer ring of the bearing 52 are fixed. A seal member is provided in the fitting portion of the bearing housing 50 with the vertical rotating shaft 12 as described above.

Further, the attachment of the support 34, the attachment arm 20 and the gear box 37 to the operation rod 4 will be described. The support 34, the attachment arm 20 and the gear box 37 are joined to the operation rod 4 by the divided joint portions 55, respectively. As shown in FIGS. 4 and 5, the lower mounting seat 56 and the upper holding body 57 welded to the upper ends of the support body 34 and the mounting arm 20 respectively operate the semicircular arc-shaped mounting recesses. 4 and fixed with bolts 58 and securely clamped by the operating rod 4.
With respect to the gear box 37, as shown in FIG. 6, the lower mounting seat 56 and the upper holding body 57, which are welded to the upper surface of the gear box 37, like the support body 34 and the mounting arm 20, are respectively semicircular. The fitting recess is fitted to the operating rod 4 and fixed with a bolt 58, and is securely clamped by the operating rod 4.
When the blades of the snow collecting auger 13 are damaged and repaired, the bolts of the rotating disk 8 shown in FIG. 1 are loosened, the bolts 59 are removed from the upper shaft end of the vertical rotating shaft 12, and the boss 21 is removed. , The key 59 is also removed, the bearing retainer 46 is removed by loosening the bolt, the fixing nut 45 is loosened and removed from the upper small diameter shaft portion 44, and the upper small diameter shaft portion 44 is in a free state with respect to the bearing housing 42. Become.
In this state, if the bolt of the lower seat 48 of the lower bearing portion 11 shown in FIG. 3 is loosened to release the engagement with the ring seat 47, the inner diameter of the ring seat 47 is larger than the diameter of the blade of the snow collecting auger 13. Therefore, the snow collecting auger 13 together with the lower seat 48 is detached from the vertical case 9 and can sufficiently cope with maintenance.

Since the snow removal part 2 in the portable simple snow remover of the present invention is intended to have a lightweight finish, most of the vertical case 9 and the snow collecting auger 13 except for the upper and lower shaft ends, and the chute control part 24 The support 34 and the gear box 37 are preferably made of a lightweight aluminum alloy.
Further, the swinging means 18 is configured to prevent the rotating drum 25 integral with the chute 19 from being slipped over the vertical case 9 by a sliding guide portion 31 within a required swing range and positioned at a required position with a bolt or the like. In the case of remote control, a chain attachment 27 or a meshing hole for rotating the rotary drum 25 with a sprocket wheel 32 or a pin wheel is used as a rotary drum. The rotating drum 25 is provided with an arm, a link and the like for being provided on the rotary cylinder 25 and rotating with a Bowden wire or a connecting rod.

Next, the operation of the portable simple snow remover according to the present invention will be described below with reference to the accompanying drawings. The portable simple snow remover constructed as described above has a rotating handle 38 of the gear box 37 of the chute control unit 24 shown in FIG. Operate and start snow removal with the chute 19 directed in the required snow throwing direction.
The snow collecting auger 13 that rotates on the vertical rotating shaft 12 can remove snow by increasing its height with respect to its diameter, and it can be swung to the left and right by the U-shaped two-handed handle 3 to widen the snow removal width, so it has a large snow removing ability. Yes, when removing snow on a high roof, it is possible to remove snow from the upper surface of the snow while adding and lowering the weight of the snow removal part 2, so that the work effort is reduced and the direction of snow throwing can be controlled. Good snow removal.
When the snow removal period has passed, the support body 34 and the gear box 37 of the chute control unit 24 and the mounting arm 20 of the vertical case 9 are each divided joint portions 55 as shown in FIG. The vertical rotary shaft 12 is easily removed from the brush cutter main body 1 by separating the rotary disk 8 and the boss 21 of the rotary head 6, and the brush cutter main body 1 is subjected to any changes. Therefore, from spring to autumn, a mowing blade (not shown) is attached to the rotary disk 8 of the rotary head 6 and used as a brush cutter.

Therefore, a bush cutter that is normally dormant in winter is useful for removing snow, and is extremely economical and useful for farmers in snowy regions.
Further, the blade of the snow collecting auger 13 according to the present invention is gradually reduced in diameter toward the snow outlet 17 along the throttle-like shape of the snow guide wall 14 in the upper snow throwing pressure increasing portion 15. Is formed.
As a result, the snow scraped from the snow scraping port 16 is sent to the throttle-shaped snow throwing booster 15 at a high speed by the spiral of the snow collecting auger 13, and the pressure gradually rises. Snow will be thrown more vigorously than 17th.

  Since the present invention can be provided without requiring any change to a commercially available brush cutter, not only can it contribute to the field of manufacturing a simple snow removal device in order to meet the demand from farmers, but also the use of a brush cutter can be used. This extends to the field of snow removal and contributes to the revitalization of the brush cutter manufacturing industry.

It is one side view of the portable simple snow remover of this invention. It is a principal part longitudinal cross-sectional view of the upper decomposition | disassembly state of a snow removal part. It is a lower part longitudinal cross-sectional view of a snow removal part. It is upper explanatory drawing which fractured | ruptured a part of snow removal part. It is Q arrow view of FIG. It is a P arrow view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Brush cutter body part 2 Snow removal part 3 U-shaped two-handed handle 4 Control rod 5 Drive source 6 Rotating head 7 Output shaft 8 Turning board 9 Vertical case 10 Upper bearing part 11 Lower bearing part 12 Vertical rotating shaft 13 Snow collecting auger 14 Snow throwing guide wall 15 Snow throwing pressure increasing portion 16 Snow scraping port 17 Snow throwing port 18 Oscillating means 19 Chute 20 Mounting arm 21 Boss 22 Upper cover 23 Lower cover 24 Chute control unit 25 Rotating drum 26 Base 27 Chain attachment 28 Large diameter Cylindrical portion 29 Guide flange 30 Sliding material 31 Sliding guide portion 32 Sprocket wheel 33 Rotating shaft 34 Support 35 Worm 36 Worm gear 37 Gear box 38 Rotating handle 39 Flexible shaft 40 Upper seat 41 Fitting hole 42 Bearing housing 43 Bearing 44 Upper small diameter shaft Part 45 Fixed net 46 Bearing holder 47 Ring seat 48 Seat panel 49 engaging hole 50 the bearing housing 51 below the small-diameter shaft portion 52 bearing 53 fixed net 54 bearing retainer 55 dividing junction 56 under the mounting seat 57 Kyojitai 58 volts 59 volts 60 keys

Claims (2)

  A brush cutter main body in which a drive shaft is built in an operating rod to which a U-shaped two-hand handle is attached, an output shaft of a drive source is connected to one end of the drive shaft, and an input shaft of a rotary head is joined to the other end And a snow removal unit in which a snow removal rotary blade is detachably attached to the output shaft of the rotary head, wherein the snow removal unit has a vertical case and a vertical rotation shaft of the snow removal rotary blade. The vertical case is attached to the operating rod with a snow scavenging opening opened on the peripheral surface extending from the required position of the upper part to the lower end part, and the vertical type case is attached to the operating rod. The upper part of the case is provided with a square flute-shaped snow throwing booster, and the snow thrower opening at the end of the snow throwing booster is provided with rocking means around the vertical rotation axis of the snow collecting auger. A chute that is swingably supported over a required range is provided continuously. That mobile simple snowplow.   2. The portable simple snow remover according to claim 1, wherein a chute control unit linked to the chute swinging means is disposed on the operating rod.

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