JP2017057635A - Walking type blade snow remover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a snow remover that is easily usable even by a comparatively inexperienced user in handling of a machine such as a woman and an aged person by efficiently performing snow-removing work and that enables work by pushing snow in various ways, being at a low cost.SOLUTION: A walking type blade snow remover 1 comprises a blade part 5 installed at the front that removes snow by pushing snow by forward traveling and an operating handle 60 at the rear of a machine body. In the snow remover, the operating handle 60 and the blade part 5 are connected through a rotary frame 4 rotating in the vertical direction with respect to a body frame 3, and the blade part 5 is provided to be freely rotatable forward and backward and fixable with respect to the rotary frame 4 while a blade body 50 is freely rotatable and fixable in a state orthogonal to the traveling direction in the plan view and an inclined state in the cross direction, and each rotation is operated by a turning operation part installed in the operation handle 60.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a walking blade snow removal device that includes a traveling part that moves forward and backward by a traveling crawler belt and a tire, a snow removal blade at the front part of the traveling part, and performs snow removal work by operating a handle provided at the rear. Related to the machine.

  2. Description of the Related Art Conventionally, a walking type snowplow equipped with a blade for snow removal, for example, is configured such that the blade is pivotally supported on a frame and can be pivotally locked at an arbitrary angle. Japanese Patent Application Laid-Open No. 136-231454 includes a “snow removal blade” of Japanese Patent No. 136820 (Patent Document 1) and a blade rotation device that can raise the snow removal blade and can fix the angle of the snow removal blade or change it as necessary. “Walking type snow remover” (Patent Document 2) is known.

  The walking type snowplow shown in Patent Document 2 enables the blade to be rotated back and forth by the blade rotation device, so that it can be transported by putting snow on the blade portion in addition to pushing the snow. Placement restrictions have been improved. However, a walking blade type snowplow that can be easily used by anyone and can be purchased at low cost is desired. In this example, the structure is complicated, and the operation of the lever 21 is necessary. Is not easy.

  In the snow remover shown in Patent Document 1, a configuration is disclosed in which a snow removal operation can be performed by inclining a blade. The snow removal operation is performed by advancing the snow removal portion and pushing the snow with the blade portion. In this case, since the blade portion can be rotated to be changed into various shapes, it can be selectively used depending on the work situation. However, in order to rotate the blade in the left-right direction, it is necessary to manually adjust the length of the arm 11 to insert and fix the pin, and the configuration is not easily handled. Further, forward and backward rotation is performed using a tractor cylinder.

Japanese Utility Model Publication No. 55-136820 JP 2011-231454 A

When performing snow removal work by pushing snow with a snow removal blade, if the snow moves backward after the snow has been pushed, snow may adhere to the front surface of the blade and the raised snow may collapse. Further, not only the operation in which the blade is orthogonal to the traveling direction but also the continuous operation can be performed while tilting and pushing the snow to the side, thereby enabling various efficient operations.
The present invention is a snow remover that can perform snow removal work efficiently, and can be used easily even by users who are relatively unfamiliar with the handling of machines, such as women and elderly people, can perform various operations by pushing snow, and has a simple structure The object is to provide a snowplow that can be provided at low cost.

In order to solve the above problems, a snowplow according to claim 1 is a traveling unit driven by a power source and capable of traveling, a blade unit that is provided in front of the fuselage and pushes snow by forward traveling to remove snow, and the fuselage In a walking blade snowplow with an operating handle for operating the aircraft provided at the back,
The operation handle and the blade part are connected to the main body frame via a rotation frame that is held by a rotation shaft provided in a horizontal direction perpendicular to the advancing direction and rotates in the vertical direction with respect to the main body frame. The walking blade snowplow is characterized in that the part is provided so as to be rotatable and fixed in the front-rear direction with respect to the rotation frame, and the rotation and fixing are performed by a rotation operation part provided on the operation handle.

According to a second aspect of the present invention, there is provided a snow removal machine that is capable of traveling by being driven by a power source, a blade part that is provided in front of the machine body and that pushes snow by forward running and removes snow, and a machine body that is provided at the rear of the machine body. In a walking blade snowplow with an operation handle for operating
The operation handle and the blade part are connected to the main body frame via a rotation frame that is held by a rotation shaft provided in a horizontal direction perpendicular to the traveling direction and rotates in the vertical direction with respect to the main body frame.
The blade portion is provided so as to be rotatable and fixed in the front-rear direction with respect to the rotation frame, and can be rotated and fixed in a state orthogonal to the advancing direction in plan view and a state inclined in the front-rear direction. Each of the rotations is performed by a single cylinder operated by a rotation operation unit provided on the operation handle.

  The blade portion is provided so as to be freely rotatable and fixed in the front-rear direction with respect to the rotating frame, and the rotation and fixing can be performed by the rotation operation portion provided on the operation handle. When retreating away from the position, the blade portion is tilted forward to temporarily compress the raised snow, thereby preventing the snow from adhering to the blade, so that the raised snow is not destroyed and efficient work can be performed. In addition, since the blade can be rotated and fixed in a state where the blade is orthogonal to and inclined with respect to the advancing direction in plan view, it is possible to provide a snow remover that can easily perform various snow removal operations, has good handleability, and has a simple structure.

It is a left view of the walk type blade snow remover which shows an example of this invention. It is a top view of the walk type blade snow remover which shows an example of the present invention. It is a top view of the blade part in the state where the right end of the blade part of the walk type blade snow remover of the present invention is retracted and inclined. It is the left view which carried out the cross section of the blade part of the walk type blade snow remover of this invention. It is the left view which carried out the cross section of the state which fell down the braid | blade of the walk type blade snow remover of this invention ahead. It is sectional drawing of the lock pin part of the state which locked the horizontal rotation of the braid | blade part. It is sectional drawing of the lock pin part of the state which cancelled | released the lock | rock of the horizontal rotation of a braid | blade part. It is a right view of the rotation operation part provided in the operation handle. It is explanatory drawing which showed the side surface of the braid | blade part for demonstrating an effect | action when a blade is fallen. It is sectional drawing which showed the expansion-contraction rod front-end | tip part of the electric cylinder.

  One embodiment will be described with reference to FIGS. In the description of this example, the left side shown in FIG. 1 will be described as the front side in the traveling direction, the right side as the rear side, and the side perpendicular to the paper surface as the left and right direction.

  The walking blade snowplow 1 of the present invention is provided with crawler belts 20 on the left and right for running, and drives the crawler belt 20 wound around with a driving wheel 23 and a driven wheel 25 positioned at the front. A snow removal blade 5 having a width equal to or wider than the width of the left and right crawler belts 20 is provided at the front part of the crawler belt 20, and a grip 61 that is operated by an operator by gripping the left and right is provided at the rear part. An operation handle 60 is provided. On the rear end side of the operation handle 60, a travel switching lever 63 that switches the travel direction back and forth and a travel lever 62 that turns the travel on and off in the vicinity of the grip 61 are provided. In this example, a travel switching lever 63 is provided inside the vicinity of the grip 61 on the right side in the traveling direction, and a travel lever 62 is provided on the left grip 61 portion. The travel switching lever 63 rotates around a left and right axial center in an operation panel 64 provided on the right operation handle 60, and a forward position for driving the electric motor 21 described later forward, and a reverse position for driving backward. A neutral position is provided between the forward movement position and the reverse movement position, and is configured to be rotatable between these positions. In addition, a rotation operation unit 65 to be described later is provided outside the operation handle 60 of the operation panel 64 provided with the travel switching lever 63.

  The operation handle 60 is connected to the snow removal blade portion 5 positioned in the front via the rotating frame 4, and the rotating frame 4 extends rearward through the inner left and right sides of the left and right crawler belts 20. It is provided so as to be able to turn up and down around a turning fulcrum shaft 46 of a horizontal axis perpendicular to the traveling direction located between the rotation shafts of the driving wheel 23 and the driven wheel 25 arranged before and after the visual crawler belt 20. . When the grip 61 part of the operation handle 60 is gripped and pushed down, the rotating frame 4 can be rotated around the rotation fulcrum shaft 46 and the blade part 5 connected to the front part can be rotated upward. .

  FIG. 2 is a plan view of the walking blade snow remover 1 of the present invention. A crawler belt 20 is provided on the left and right of the main body frame 3 located in the center, and a battery case 70 containing a battery for driving the electric motor 21 for traveling and an electric motor 21 are provided in the middle of the left and right crawler belts 20. A control unit 8 for controlling is provided. From the main body frame 3, rotation shafts of a driving wheel 23 and a driven wheel 25 that drive the crawler belt 20 in the left-right direction are provided so as to project. The crawler belt 20 for traveling is wound around a driving wheel 23 provided at the front and a driven wheel 25 at the rear, and is driven by rotating the electric motor 21 provided at the driving wheel 23 in the forward and reverse directions. The electric motor 21 of this example has a structure integrated with the drive wheels 23 using a wheel-in motor type motor. The operation parts of the left and right crawler belts 20 have a symmetrical structure.

  Between the crawler belt 20 and the main body frame 3, the rotating frame 4 formed of a round pipe extends in the front-rear direction, and the main body frame 3 has a left-right direction between the driving wheel 23 and the driven wheel 25. A rotation fulcrum shaft 46 is provided so as to project in the direction. A rotation boss of the rotation frame 4 is inserted into the rotation fulcrum shaft 46, and the blade portion 5 is connected to the front portion and the operation handle 60 is connected to the rear portion.

  The traveling unit 2 includes left and right drive wheels 23, driven wheels 25, a crawler belt 20 spanned between both wheels, and an electric motor 21 provided on the drive wheels 23. The drive wheel 23 has a symmetrical structure, and only one side will be described. The electric motor 21 is a wheel-in type motor and is provided integrally with the drive wheel 23, and a motor case covering the outer periphery of the electric motor 21 is fixed integrally with the drive wheel 23, and the electric motor 21 is installed in the motor case. A stator, a rotor, and a speed reduction part are built in, and when the electric motor 21 rotates around a rotating shaft that protrudes horizontally from the main body frame 3, the drive wheel 23 also rotates coaxially.

  Since the electric motor 21 portion is located substantially within the width of the crawler belt 20, the center of gravity is located within the width of the crawler belt 20, and the weight of the electric motor 21 that is relatively heavy among the components is directly crawled. The driving force is improved by acting on the contact pressure of the belt 20. In addition, since the electric motor 21 having a relatively heavy weight as compared with other components is positioned in the drive wheel 23, the center of gravity of the walking blade snowplow 1 can be kept low. A change in driving force of the left and right crawler belts 20 is small, there is little risk of falling, and a structure with good handleability can be obtained. Furthermore, since the electric motor 21 is located in the crawler belt 20, the entire configuration can be made compact.

  The traveling crawler belt 20 has a driving wheel 23 on the front side and a driven wheel 25 on the rear side. The driving crawler belt 20 is wound around the driving wheel 23, and is driven by rotating the electric motor 21 provided on the driving wheel 23 in the forward and reverse directions. The wheel 23 is rotated and driven. When the snow is pushed by the snow removal blade portion 5, the drive wheel 23 rotates forwardly. By rotating forward, the upper surface side which is the grounded surface of the crawler belt 20 is pulled forward. Since the rear driven wheel 25 is in an idle state, the grounding surface side of the crawler belt 20 is also stretched, and the entire grounding surface of the crawler belt 20 uniformly presses the ground to effectively exert a driving force. On the other hand, when the driving wheel 23 is located on the rear side, the upper portion of the crawler belt 20 can be easily slackened, and the ground contact surface portion is relatively less likely to be in a tension state, so that it is difficult to effectively transmit the driving force. This is advantageous in terms of traction performance.

  A pivot fulcrum shaft 46 of the pivot frame 4 for pivoting the blade part 5 up and down is provided horizontally in the left-right direction at the lower part of the main body frame 3 and protrudes from the main body frame 3 at both ends in the left-right direction. The rotation boss of the rotation frame 4 is rotatably fitted to the projecting portion. A battery housed in the battery case 70 is located at the center of the main body frame 3. The battery is positioned so that the center of gravity of the battery is located between the rotation shafts of the drive wheel 23 and the driven wheel 25 disposed in front of and behind the traveling crawler belt 20 in a side view. As a result, the weight of the battery effectively acts on the ground contact surface of the crawler belt 20 to improve the driving force.

  The battery unit 7 and the control unit 8 are provided in the main body frame 3. The battery unit 7 includes a battery and a battery case 70 containing the battery. The battery unit 7 is located in front of the main body frame 3 in the traveling direction and is detachable from the main body frame 3. The battery case 70 is provided with a connection coupler (not shown) for connection with the control unit 8 located behind the battery case 70, and a horizontal guide projecting from the control unit 8 side at the bottom. A pin hole into which the pin and the guide pin are fitted is provided. Further, a handle 72 is provided on the upper surface so that the battery unit 7 can be carried. A fixing lever 73 for fixing to the main body frame 3 is provided at the lower front part of the battery unit 7, and the fixing lever 73 is horizontally fixed and released from and fixed to the main body frame 3. Further, a light 74 for night work and a light switch for turning on / off the light 74 are provided in a front portion above the battery case 70.

  The control unit 8 is built in the control unit case and is fixed to the main body frame 3. The control unit 8 is provided with a coupler that can be attached to and detached from the connecting coupler on the battery unit 7 side, and the power supply is conducted.

  A pair of left and right guide plates that guide the battery case 70 are provided on the upper surface of the main body frame 3 on which the battery unit 7 is placed, and the lateral displacement of the battery unit 7 is prevented when the battery unit 7 is connected or separated. This can be done quickly and reliably.

  The blade part 5 located in the front part is composed of a main blade body 50 that pushes out snow and a scraper 51 located in the lower end part thereof. The blade body 50 has an arcuate shape with an opening facing forward, and is provided to be equal to or wider than the outer ends of the left and right crawler belts 20. A scraper 51 is attached to the lower end of the blade body 50 over almost the entire width of the blade body 50. The scraper 51 is inclined at an acute angle from the front end toward the rear, and pushes the blade portion 5 against the snow surface to cause it to bite in. The forward movement guides the snow along the concave surface on the front surface of the blade body 50. Then, it is raised and sequentially dropped from the upper part curved forward and collected.

  The front and rear rotation of the blade portion 5 will be described with reference to FIGS. 3, 4, 5, and 9. The blade portion 5 is provided so as to be rotatable in the front-rear direction with respect to a rotation frame front end bracket 40 provided at a front end portion of the rotation frame 4. 4 and 5 show an AA cross section of the blade portion 5 shown in FIG. 2, and FIG. 5 shows a state in which the upper portion of the blade body 50 is tilted forward.

  The blade body 50 and the rotating frame front end bracket 40 are attached to the front and rear rotating brackets 47 and 47 attached to the rotating frame front end bracket 40 so as to be freely rotatable in the front-rear direction. They are connected by a fixed blade horizontal rotation bracket 52. The pivot frame front end bracket 40 and the front / rear pivot bracket 47 are swingable back and forth by a front / rear pivot point 41 of a horizontal axis in a direction orthogonal to the traveling direction provided on the lower side of the front / rear pivot bracket 47. It is connected. On the other hand, a mounting bracket 500 for connecting to the rotating frame 4 side is fixedly provided on the rear surface of the left and right intermediate portions of the blade body 50, and the blade horizontal rotation provided vertically to the front and rear rotating bracket 47 is provided. A blade horizontal rotation bracket 52 provided so as to be rotatable in the horizontal direction by a moving shaft 53 is attached. An attachment bracket 500 of the blade body 50 is fixedly attached to the blade horizontal rotation bracket 52 with an attachment pin 54. With this configuration, the blade body 50 has a structure that can be rotated back and forth and left and right. The blade body 50 can be removed by removing the mounting pin 54.

  The front / rear rotation bracket 47 has a U-shape having a release portion in front of the side, and the blade horizontal rotation bracket 52 is fitted inside the U-shape, so that the blade horizontal rotation shaft 53 extends in the vertical direction. The blade horizontal rotation bracket 52 is held in a state of penetrating both the blades so that the blade can be rotated in the horizontal direction. An electric cylinder 42 is bridged between the rotation frame 4 and the blade horizontal rotation bracket 52. The electric cylinder 42 has a base side attached to the rotating frame 4 side, and a distal end side of the telescopic rod attached to the blade horizontal rotating bracket 52 side so as to be horizontally rotatable and vertically rotatable. The base side of the electric cylinder 42 is connected to the other end of the swing bracket 43 with one end inserted into the cylinder swing shaft 45 fixed to the rotating frame 4 in the vertical direction. It is installed. The distal end side of the telescopic rod is connected to a position offset laterally from the center of the blade horizontal rotation shaft 53 of the blade horizontal rotation bracket 52. FIG. 10 shows a cross section on the tip end side of the rod of the electric cylinder 42 that expands and contracts. The electric cylinder 42 is attached to the blade horizontal rotation bracket 52 via a swing pin 48. The swing pin 48 is composed of a downward U-shaped plate and a shaft portion extending upward from the U-shaped plate, and the rod end portion of the electric cylinder 42 extending and contracting inside the U-shaped plate. The cylinder movable end shaft 49 penetrates and is inserted in a horizontal direction orthogonal to the traveling direction so as to connect the electric cylinder 42. On the other hand, the shaft portion suspended upward is inserted into the boss portion of the blade horizontal rotation bracket 52 and connected so as to be horizontally rotatable. By extending and contracting the electric cylinder 42, the front / rear rotation bracket 47, the blade horizontal rotation bracket 52, and the blade body 50 are rotated back and forth around the front / rear rotation pivot point 41 of the rotation frame tip bracket 40.

  The front / rear rotation bracket 47 is provided with a blade horizontal rotation lock pin 55 located at the upper portion of the U-shaped outer side to fix and release the horizontal rotation of the blade horizontal rotation bracket 52. The blade horizontal rotation lock pin 55 can be projected and retracted from the U-shaped outer side of the front / rear rotation bracket 47 to the blade horizontal rotation bracket 52 side inserted and inserted inside the front / rear rotation bracket 47. The horizontal rotation of the blade horizontal rotation bracket 52 with respect to the front / rear rotation bracket 47 is fixed by being inserted through a fixing hole provided in the movement bracket 52. The fixing hole is provided so that the blade body 50 attached to the blade horizontal rotation bracket 52 can be fixed at a position perpendicular to the advancing direction in plan view and a position inclined to the left and right.

  As shown in FIGS. 6 and 7, the blade horizontal rotation lock pin 55 is inserted into a boss 470 suspended from the front / rear rotation bracket 47 and biased downward by a spring 56. The spring 56 is inserted in the boss 470, and the upper entrance side of the boss 470 is stopped and pressed by the stopper 58 to urge the blade horizontal rotation lock pin 55 toward the blade horizontal rotation bracket 52 side. The stopper 58 is fixed to the boss 470 by a set screw 59 provided in the horizontal direction. Further, one end of a control cable 57 is connected to the blade horizontal rotation lock pin 55, and the other end is connected to a lock pin operation lever 650 of a rotation operation unit 65 provided on the operation handle 60. By operating the pin operation lever 650, the blade horizontal rotation lock pin 55 can be moved in and out on the blade horizontal rotation bracket 52 side.

  When the blade body 50 is rotated back and forth, the horizontal rotation of the blade horizontal rotation bracket 52 with respect to the front and rear rotation bracket 47 is locked by the blade horizontal rotation lock pin 55, and the blade body 50 can be arbitrarily expanded and contracted. It is possible to work by adjusting the rotational position at the position. With this structure, it is possible to push the snow with the blade body 50 part, rotate the blade body 50 forward and push the snow before retreating after the pushing is finished. Even if you leave and retreat, the raised snow will not collapse and you will be able to remove snow efficiently.

  Further, when the rotation of the blade horizontal rotation bracket 52 is released while the handle portion 6 is held and the electric cylinder 42 is expanded and contracted, the rotation resistance is more horizontal than the rotation of the blade body 50 in the front-rear direction. Since there is little resistance, the blade horizontal rotation bracket 52 rotates horizontally around the blade horizontal rotation shaft 53. Since the blade main body 50 is fixed to the blade horizontal rotation bracket 52, the blade main body 50 rotates about the blade horizontal rotation shaft 53 in the front-rear direction as shown in FIG. By rotating and tilting the blade body 50 back and forth in plan view, it is possible to continuously release snow from the side of the blade body 50 and swell it in a streak shape to the side.

  FIG. 8 shows a turning operation portion 65 provided at the rear end portion of the operation handle 60. The rotation operation portion 65 is provided on the outer side of the operation handle 60 of the operation panel 64 portion provided with the travel switching lever 63, and is locked. A pin operation lever 650 and a cylinder operation switch 652 are included. The lock pin operation lever 650 is for operating the blade horizontal rotation lock pin 55 provided on the front / rear rotation bracket 47, and rotates in the front / rear direction on the operation lever rotation shaft 651 provided horizontally on the operation handle 60. It is mounted movably. Further, a control cable 57 connected to the blade horizontal rotation lock pin 55 is connected between the operation lever rotation shaft 651 and the grip on the rotation end side, and the lock pin operation lever 650 is moved backward. When the blade is rotated, the blade horizontal rotation lock pin 55 is removed from the blade horizontal rotation bracket 52 side, and the blade horizontal rotation bracket 52 can be freely rotated.

  The cylinder operation switch 652 is a switch for operating and expanding / contracting the electric cylinder 42 spanned between the rotating frame 4 and the blade horizontal rotating bracket 52. When the cylinder is moved forward, the electric cylinder is extended, and when it is moved backward, the cylinder is contracted. When released, it becomes the stop position of the intermediate position.

  The control unit 8 includes a battery, a power switch 640 of the handle unit 6, a switch of the travel switching lever 63, a switch of the travel lever 62, a battery fuel gauge 641, a cylinder operation switch 652, the electric cylinder 42, and the left and right of the travel unit 2. The electric motor 21 is wired, and the controller 8 operates the electric motor 21 by operating each switch. An operation panel 64 in the vicinity of the operation handle 60 is provided with a power switch 640 and a travel switching lever 63 for switching between forward and backward travel. A grip 61 on the left side of the operation handle 60 is provided with a travel lever 62 and is gripped together with the grip 61. The travel lever switch provided at the base of the travel lever 62 is turned on, and the control unit 8 rotates the electric motor 21 to travel. The power switch 640 is for turning on / off the power from the battery 75. When the power switch 640 is turned on, the control unit 8 and the electric motor 21 can be operated. The travel switching lever 63 is provided with a neutral position at an intermediate portion. The electric motor 21 rotates in the forward direction when tilted forward, and backward when tilted backward. The travel switching lever 63 is provided at the base of the travel switching lever 63. The control unit 8 is switched by a switching lever switch that operates in conjunction with the switching lever switch. A battery fuel gauge 641 provided on the operation panel 64 is a meter indicating a remaining state of the electric capacity of the battery 75.

  The control unit 8 is energized by connecting to the battery unit 7 with a coupler. The battery unit 7 can be charged by a separately provided charger and includes a charging coupler. This is done by connecting to a household power outlet and connecting the charging coupler to the connecting coupler of the battery unit 7. Since the battery unit 7 can be easily attached and detached, the battery unit 7 can be charged in a relatively warm place indoors even in winter, so that the charging operation can be easily performed with good charging efficiency.

  The night work light 74 provided in the front part above the battery unit 7 can be used by turning on / off a light switch provided in the vicinity of the light 74. Further, since the power source from the built-in battery is connected even when the battery unit 7 is taken out from the main body frame 3, the light 74 can be used. Since the battery unit 7 is provided with the handle 72 and can be easily moved to a desired place, it can be used for multiple purposes. For this reason, not only the use of the snow removal work during the winter season but also the season can be utilized.

  In addition, since this machine is an electric snow blower that does not use an engine, engine noise is not generated, and work can be performed without disturbing the neighborhood due to noise in urban areas, etc., and there are no restrictions on work hours, etc. You can work efficiently.

  To remove the battery unit 7, the fixing lever 73 at the front part of the battery case 70 is rotated to release the fixing, and then the handle 72 is held and the body frame 3 is slid forward. As a result, the connection between the guide pin and the pin hole is released. Further, the connection of the connection coupler to the control unit 8 is released. Then lift it vertically and remove it. The connection of the battery unit 7 is an operation opposite to that described above. The battery unit 7 is inserted and placed on the main body frame 3 and then slid rearward to be brought into contact with the control unit 8 side. Thereby, a guide pin and a pin hole are fitted. Thereafter, the battery unit 7 is fixed to the main body frame 3 by the fixing lever 73.

  In order to perform snow removal work with the walking blade snow remover 1 of the present invention, the power switch 640 provided on the operation panel 64 of the operation handle 60 is turned on, the travel switching lever 63 is switched to forward or reverse, and the operation handle 60 When the left and right grips 61 are gripped and the travel lever 27 provided on the left grip 61 is further gripped, the control unit 8 rotates the electric motor 21 that drives the drive wheels 23 of the left and right crawler belts 20, and the crawler belt 20. Drive to move. At the time of movement, the grip 61 part is pushed down a little and the snow removing blade part 5 in front is slightly raised from the ground for movement. The operation panel 64 is provided with a battery remaining amount meter 641 so that the remaining amount of the battery 75 can be known.

  Move to the target snow removal place, switch the travel switching lever 63 to the forward direction, ground the front snow removal blade 5 to the snow surface, grip the left and right grips 61 and move the travel lever 62 forward. As shown in FIG. 9 (a), when moving forward, the scraper 51 at the lower end of the blade body 50 bites into the forward snow and sequentially raises the snow along the front surface of the blade body 50 of the snow removal blade section 5 and curves forward. Snow is gradually collected from the upper part to the front. When snow gradually accumulates on the snow removal blade portion 5, the operation handle 60 is pushed down a little, and the cylinder operation switch 652 is operated to extend the electric cylinder 42 and tilt the blade body 50 forward (FIG. 9B). By inclining the blade body 50 forward and pressing the snow, the snow is easily separated from the blade body 50, and the raised snow is hardened and is not easily collapsed, so that the snow can be removed efficiently. Next, the electric cylinder 42 is contracted to return the inclination of the blade body (FIG. 9 (c)), and the travel switching lever 63 is switched back to reverse. This operation is repeated to perform snow removal work. When the lock pin operation lever 650 of the operation handle 60 is operated to release the blade horizontal rotation lock pin 55 of the front / rear rotation bracket 47 and the electric cylinder 42 is expanded and contracted by the cylinder operation switch 652, the blade body 50 advances. It becomes a state inclined from a state orthogonal to the direction in plan view, and by moving forward, snow is continuously discharged from one side end portion of the blade body 50 to the side, and the snow is raised in a streak shape to the side. it can. Each switch is performed according to the snow removal conditions.

  INDUSTRIAL APPLICABILITY The present invention can be applied to a walk-type snow remover that has a traveling portion such as a crawler belt or a tire, has a snow removal blade portion in front, and performs snow removal work by pushing snow.

DESCRIPTION OF SYMBOLS 1 Walking type blade snow remover 2 Traveling part 20 Crawler belt 21 Electric motor 23 Driving wheel 25 Driven wheel 3 Main body frame 4 Rotating frame 40 Rotating frame front end bracket 41 Front and rear rotating fulcrum shaft 42 Electric cylinder 43 Oscillating bracket 44 Cylinder base Axis 45 Cylinder oscillating shaft 46 Rotating frame rotating shaft 47 Forward / backward rotating bracket 48 Oscillating pin 49 Cylinder movable end shaft 5 Blade portion 50 Blade body 51 Scraper 52 Blade horizontal rotating bracket 53 Blade horizontal rotating shaft 54 Mounting pin 55 Blade horizontal rotation lock pin 56 Spring 57 Control cable 58 Stopper 59 Set screw 6 Handle portion 60 Operation handle 61 Grip 62 Travel lever 63 Travel switch lever 64 Operation panel 640 Power switch 641 Battery Remaining amount meter 65 Rotating operation unit 650 Lock pin operating lever 651 Operating lever rotating shaft 652 Cylinder operating switch 7 Battery unit 70 Battery case 72 Handle 73 Fixing lever 74 Light 8 Control unit S Snow

Claims (2)

A walking type equipped with a traveling unit driven by a power source and capable of traveling, a blade unit provided at the front of the aircraft to push snow away by forward traveling, and an operation handle provided at the rear of the aircraft for operating the aircraft In blade snowplows,
The operation handle and the blade part are connected to the main body frame via a rotation frame that is held by a rotation shaft provided in a horizontal direction perpendicular to the advancing direction and rotates in the vertical direction with respect to the main body frame. The walking blade snowplow is characterized in that the portion is provided so as to be freely rotatable and fixed in the front-rear direction with respect to the rotating frame, and the rotation and fixing are performed by a rotating operation unit provided on the operation handle. A walking unit that is driven by a power source and is capable of traveling, a blade unit that is provided in front of the machine body to push snow away by forward traveling and removes snow, and an operation handle for operating the machine body provided at the rear of the machine body In type blade snowplow,
The operation handle and the blade part are connected to the main body frame via a rotation frame that is held by a rotation shaft provided in a horizontal direction perpendicular to the traveling direction and rotates in the vertical direction with respect to the main body frame.
The blade portion is provided so as to be rotatable and fixed in the front-rear direction with respect to the rotation frame, and can be rotated and fixed in a state orthogonal to the advancing direction in plan view and a state inclined in the front-rear direction. Each of the rotations is performed by a single cylinder operated by a rotation operation unit provided on the operation handle.

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