JPH0816403B2 - Snow removal device for dome roof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Field of Industrial Application> The present invention is a horizontal structure in which respective roof members radially divided from a hemispherical dome roof top center point are moved so as to overlap each other in the circumferential direction. The present invention relates to a snow removal device for an openable and closable dome roof, such as a rotary movement system or an outer circumference center movement system in which several parts are defined in the vertical direction and move so as to overlap in the vertical direction, that is, the vertical direction.

<Prior Art> Conventionally, in this type of openable dome roof, exhaust heat in the dome was used to blow air containing the exhaust heat to the back of the roof to melt snow. However, in such a snow-melting type snow removing apparatus, if the beam for supporting the roof movably remains, it is possible to use the support beam to pipe the air supply duct. In order to reduce the moving power capacity as much as possible, the opening / closing type roof does not adopt the outer peripheral center moving type in which the respective roof members are moved so as to be overlapped with each other vertically, and adopts a horizontal rotation moving method.

In such a horizontally movable moving system, since the supporting beams and the like are not required, there remains a difficulty in how to connect the air supply duct in the snow melting type snow removing device.

<Problems to be solved by the invention> Therefore, in consideration of automatically performing mechanical snow removal work from the outer surface of the dome roof instead of the snow-melting type snow removal device, with the openable dome roof, the top space of the arena is better If you are trying to open widely and improve the so-called aperture ratio,
Each roof member (moving roof) is defined to be as small as possible so that the area that can be accommodated by overlapping each other becomes small.

Therefore, when these moving roofs move to a closed state so as to block the top space of the arena, there are level differences between the dome surfaces, and the dome roof surface is simply planarized by some mechanical means. Even if the snowfall was wiped out, there was a problem that the snowfall would remain for the level difference on the side with a lower level difference.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a snow removing device capable of uniformly removing snow even if there is a difference in level between the moving roofs constituting the dome roof. It is in.

<Means for Solving the Problems> In order to achieve the above object, the snow removing device for a doll roof according to the present invention is provided with a door opening / closing dome roof that employs an opening / closing method such as movement of the outer periphery center and horizontal rotation. A snow removing arm extending downward along the curve of the dome roof surface is rotatably mounted with the crown as a rotation axis, and a shank with a rack is intermittently loosely fitted and supported in the arm so as to be vertically movable. And a pinion for engaging the rack and an electric motor for driving the pinion to rotate are provided, and a flexible brush is attached to the lower end of the shank, and the shank is in the outer diameter direction of the shank. A crank extending to the crank is provided, and a lever is connected to the crank by a shaft so that the lever can be reciprocated so that the angle of the crank can be arbitrarily changed.

<Operation> The snow removal arm rotatably attached to the crown of the openable doll roof rotates around the outer surface of the dome roof around the axis of rotation of the crown.

The shank with a rack accommodated in this arm can move vertically in the snow removing arm when the pinion engaged with this rack is rotationally driven by an electric motor.

An elastic brush is attached to the lower end of the shank, and the brush level can be changed when the shank is adjusted to an arbitrary level position by controlling the rotation of the electric motor. The motor constantly controls the shank in the vertical direction so that the tip of the brush is always kept at a constant level position with respect to the outer surface of the moving roof. The elastic brush absorbs the reaction force caused by clearing snow when the snow removing arm moves. It softens the direct impact on the machinery.

In addition, a lever is connected to the crank that extends in the outer diameter direction of the shank by a shaft, and when the lever is reciprocated, the angle of the shank changes in the direction of rotation as the angle of the crank changes, and the brush attached to the lower end of the shank changes. The angle changes. When the brush rotates from the same parallel state as the snow removal arm to change some angle, the rotation direction exerts a force that can be seen as moving vertically with respect to the dome, so the dome roof It will give the exercise power to lower the snow on the top.

<Example> Hereinafter, a preferred example of the present invention will be described in detail with reference to the drawings.

1 and 2 show a side surface of a dome roof to which the snow removing device 1 of the present invention is applied, and this dome roof has a hemispherical dome roof formed on an outer peripheral wall 2 standing in a circular shape. From the top of the head toward the outer peripheral wall 2 at the top of the head
Two of the roof members with a 6-division structure divided in the radial direction at an angle difference of 60 ° are fixed roofs 3,3, and the remaining four moving roof members are swivel roofs 4,5,6,7.

The swivel roofs 4,5,6,7 are moved to overlap with the fixed roofs 3,3 along the outer circumference of the outer peripheral wall 2 with the crown as the central axis. It is in an open state when it moves toward the fixed roofs 3, 3, and is in a closed state when it uniformly covers the arena, that is, the inner peripheral side of the outer peripheral wall 2.

In FIG. 1, the level of the fixed roof 3 is at the highest level, and the levels are sequentially lowered in the order of the swivel roofs 4 and 5. Therefore, the state when the roof is opened is when the revolving roofs 4 and 5 are moved to the lower side of the fixed roof 3 in an overlapping manner. FIG. 2 shows the opposite, in which the level of the fixed roof 3 is at the lowest position, and the level difference is added so that the swivel roof 4 and the swivel roof 5 are sequentially superposed on it.

The swivel roofs 4,5,6,7 are supported on a swivel guide rail 8 laid on the outer peripheral wall 2 so that the bottom can be freely traveled by a trolley, and the tops of the swivel roofs extend to the tops of the fixed roofs 3, respectively. It is rotatably supported by an axis 9 attached to the section.

The snow removing device 1 is provided with a rotation guide rail 12 laid in a ring shape from the shaft center 9 on the outer peripheral wall 2, and a snow removing arm 11 extending along the dome roof surface.
It rotates on the dome roof surface consisting of the fixed roofs 3,3 and the revolving roofs 4,5,6,7 with the rotation axis as the rotation axis. Further, a brush 12 for snow removal is provided which extends from the bottom of the snow removal arm 11 to the roof surface. Third
The figure shows the plane of FIG. A ring-shaped rotation guide rail 10 is laid on the outer peripheral wall 2, and a swivel roof is provided inside the rail.
A turning guide rail 8 for turning 4, 5, 6, 7 is laid.

The base end of the snow removal arm 11 is supported by a traveling carriage 13 that travels on the rotation guide rail 10, and when the traveling carriage 13 travels on the rotation guide rail 10, the snow removal arm 11 rotates and moves on the dome roof surface. Is. The dome roof is formed in a symmetrical shape, and the fixed roofs 3 and 3 are fixed so as to project to the inside of the outer peripheral wall 2 at the same level, but the swivel roof which is another movable roof. 4,5,6,7 are the same level where the swivel roofs 4 and 6 overlap on the fixed roofs 3 and 3, and the other swivel roofs 5 and 7 are on the same level where they overlap on the swivel roofs 4 and 6. Is configured. Therefore, when the snow removal arm 11 rotates on each roof, the fixed roof 3
When starting from, the level of the brush 12 is the fixed roof 3
The position of the brush 12 is set extremely close to the surface of the brush 12, and it is necessary to raise the level of the brush 12 when it reaches the position of the swivel roof 4 or the swivel roof 6 as a result of the rotation traveling. Further, when the snow removing arm 11 is rotated as it is, it is necessary to further raise the level of the brush 12 when the rotation of the swivel roof 4 or 6 is changed to the swivel roof 5 or the swivel roof 7. Details including the mechanism for changing the level of the brush 12 will be described below with reference to FIG.

FIG. 4 is a perspective view in which a part of the shaft center 9 is cut away.
As shown in the figure, the shaft center 9 is constructed so as to swivel the swivel roofs 4, 5, 6 and 7 so as to bear a slight vertical load on the roof, and a horizontal collar at the lower end of the hollow cylinder. There is a mounting base 14 in the shape of a circle, and the swiveling roofs 6 and 7 or the swiveling roofs 4 and 5 are tapered on the upper part of the mounting base 14 with a section corresponding to a level difference capable of overlapping with each other and protruding in the outer diameter direction. It has attached eaves 15 and 15a. The details are shown in FIG. The eaves 15 and 15a include a rotating roller 16 arranged radially in the outer diameter direction and a roller 17 arranged in the peripheral portion.

The rotating rollers 16, 17 support the revolving roofs 4,5, 6, 7 rotatably.

In this way, the crowns of the revolving roofs 4, 5, 6, 7 in which the crowns are rotatably fitted to the eaves 15, 15a have a fitting structure in which the crowns are recessed in the outer peripheral direction so as to envelop the upper and lower sides of the eaves 15, 15a. The rotary roof 3 is fixed to the mounting base 14 at the bottom. That is, the shaft center 9 is fixed to the fixed roof 3 at the mounting base 14.

On the contrary, a snow removing arm 11 is rotatably attached to the top of the shaft center 9. Since the revolving roofs 5 and 7 are attached to the eaves 15 located above the axis 9, the revolving roofs 5 and 7 are at the same level. Further, since the swivel roofs 4 and 6 are attached to the lower eaves 15a, they are also at the same level.

Next, regarding the structure of the snow removing arm 11 that constitutes the snow removing device 1, this is to install the shank 18 vertically intermittently at regular intervals intermittently in the axial direction of the snow removing arm 11 rotatably attached to the shaft center 9. The brush 12 is attached to the lower end of each shank 18. The inside of the snow removing arm 11 is hollow, and the shank 18 is housed in the hollow portion, and the protruding end of the shank 18 supports the brush 12. Mechanism of shank 18 and brush 12
It is shown in FIGS.

In order to determine the position of the shank 18, stays 19 are provided inside the snow removing arm 11 at intervals vertically. Stay
19 is a ring, and the shak 18 can move up and down through the ring of this stay 19. Shank 18
A groove 20 which should be called a spline is engraved in the surface axial direction of the crank, and a crank 22 having a slidable key 21 in the groove 20 is slidable between the upper and lower stays 19 and 19. It is provided. The crank 22 restricts the key 21 from moving up and down while being guided by the groove 20 and at the same time moving in the rotational direction, so that the crank 22 and the shak 18 rotate integrally.

That is, when rotating the shank or crank, both rotate simultaneously. In this embodiment, the crank is not rotated, but when a rotation angle is applied to the crank 22, the shank 18 also rotates by the rotation angle of the crank 22. A pin 23 having a ball top is attached to the tip of the crank 22, and a pin 24 is connected between the pins 23 and 23 with a lever 24. That is, the cranks 22 and 22 are connected to each other via the lever 24 by the pin 23 having the ball top between the cranks 22 and 22 which are adjacent to each other. A cylinder 25 is installed at one end of each lever 24, and a cylinder rod 26 thereof is connected to one end of the lever 24. Now
When the cylinder 25 is reciprocated, the cylinder rod 26 makes a piston movement back and forth, and when the lever 24 makes a reciprocating movement in its axial direction, the crank 22 also moves at a constant rotation angle in the longitudinal direction. Therefore, since the shank 18 makes a constant angular motion according to the rotation angle of the crank 22 given by the lever 24, the brush 12 provided at the lower end of the shank 18 via the shoulder 27 makes a constant angular motion. .

Further, as shown in FIG. 8, the shank 18 has a rack 28.
The pinion 29 that engages with this rack 28 is an electric motor
It is controlled by 30. The rotation of the pinion 29 meshing with the rack 28 causes the shank 18 to directly move up and down. Further, a heater 31 is provided inside the snow removing arm 11,
The rack 28 and the pinion 29 are prevented from freezing and being hindered by snow. The heater 31 is a snow removing device 1
To operate in advance. When it is not necessary to use the snow removing device 1, it is not necessary to activate the heater 31.

An ultrasonic distance measuring device 32 is provided at the end of the snow removing arm 11 on the movement direction side to constantly measure the distance from the surface of the revolving roof 4 or the fixed roof 3. For example, in FIG. 8, the snow removing arm 11
Is located on the swivel roof 4, and the ultrasonic distance measuring device
32 measures the distance between the surface of the swivel roof 4 and the shank 18 so as to keep the distance between the brush 12 and the surface of the swivel roof 4 constant.
The height of the brush 12 is controlled to a constant height by controlling the electric motor 30, but if the snow removal arm 11 is rotated in this state toward the fixed roof 3, the brush 12
If the distance between the brush 12 and the surface of the fixed roof 3 is detected by the ultrasonic distance measuring device 32, the level difference between the fixed roof 3 and the surface of the fixed roof 3 becomes significant and the snow accumulated on the fixed roof 3 cannot be removed. The electric motor 30 is driven and the shank 18 is lowered so as to match the preset optimum values of the brush 12 and the surface of the fixed roof 3 or the swivel roof 4. In this way, the brush 12 is kept at an optimum level at the surface step where the swivel roof 4 and the fixed roof 3 are adjacent to each other.

As described above, while the brush 12 is controlled to the optimum level, the angular motion of the brush 12 is added when the crank 22 is moved by the cylinder 25, and the angular motion of the brush 12 causes each of them to be on the roof surface. Snow will be forced out below the dome roof.

<Effect> As described in detail above, according to the snow removing device for a dome roof according to the present invention, an openable dome roof that adopts an opening / closing method such as a movement of the outer periphery center and a horizontal rotation is provided from the top to the dome roof surface. Since the snow removing arm extending downward along the curve of is rotatably mounted with the crown as a rotation axis, it is possible to scan the roof from the crown to the bottom simultaneously and evenly. Therefore, it is not necessary to rotate the snow removal arm many times because the snow can be removed from the top of the roof to the bottom by making one round around the roof surface. In that case, the feature of the dome is that the upper part of the dome has a gentle slope, but the slope becomes steeper as it goes downward,
Since the snow that has slid down to some extent naturally falls due to its own weight, the snow removal by the snow removal arm 11 is sufficient only at the top of the dome.

In addition, the brush for removing snow is assumed to be elastic, and it is supported by a shank that is intermittently loosely fitted and supported in the snow removing arm so that it can be moved up and down. The accompanying reaction is accompanied by the effect of somewhat reducing the impact due to the elasticity of the brush. Since the shank is provided with the rack and the pinion engaged with the rack and the electric motor for rotationally driving the pinion are provided, the height of the shank can be changed by the electric motor. Therefore, the level of the brush can be changed according to the level difference generated on the surface of the openable-closure dome roof, so that the snow accumulated on the roof surface can be uniformly and efficiently removed.

Furthermore, the shank is provided with a crank extending in the outer diameter direction, and the lever connected to the crank by a shaft is reciprocally moved so that the angle of the crank can be arbitrarily changed, so the angle of the brush fixed to the shank changes, When changing the angle, it has the effect of scraping down the snow, including the part that moves up and down with respect to the roof surface.

[Brief description of drawings]

1 and 2 are side views showing the appearance of a dome roof equipped with the snow removing device of the present invention, FIG. 3 is a plan view of FIG. 2, and FIG. 4 is a perspective view of an axial center provided at the top of the roof. FIG. 5 is a partially cutaway perspective view for explaining a state in which a roof is attached to an axis, and FIG. 6 is an explanatory view for explaining movement of a brush.
FIG. 7 is a perspective view showing the structure of the shank and the brush, and FIG. 8 is a vertical sectional view showing the inside of the snow removing arm. 1 ... snow removing device, 2 ... outer peripheral wall 3 ... fixed roof 4,5,6,7 ... swivel roof 8 ... swivel guide rail, 9 ... axis 10 ... rotation guide rail, 11 ... snow removal Arm 12 …… Brush, 13 …… Trucking carriage 14 …… Mounting base, 15 …… Eaves 16 …… Rotating roller, 17 …… Roller 18 …… Shank, 19 …… Stay 20 …… Groove, 21 …… Key 22 …… Crank, 23 …… Pin 24 …… Lever, 25 …… Cylinder 26 …… Cylinder rod, 27 …… Shoulder 28 …… Rack, 29 …… Pinion 30 …… Electric motor, 31 …… Heater 32 …… Super Sound wave distance measuring device

Claims (1)

[Claims] 1. A snow removing arm extending downward from the crown of an openable dome roof that adopts an opening / closing method such as outer periphery center movement and horizontal rotation movement, with the crown being the axis of rotation. A shank with a rack is rotatably mounted, and a shank with a rack is intermittently loosely fitted and supported so as to be vertically movable. Further, a pinion that engages with the rack and an electric motor that rotationally drives the pinion are provided. An elastic brush is attached to the lower end of the shank, and the shank has a crank extending in the outer diameter direction of the shank. A lever is connected to the crank by a shaft to reciprocate the lever. A snow removing device for a dome roof, characterized in that the angle of the crank can be changed arbitrarily.