The device for removing ice from roof overhangs is designed to facilitate the work of workers, reduce the level of danger of work, and increase the safety of buildings during their operation during periods of heavy ice formation. Unlike the known ones, the proposed device allows you to remove ice by applying lateral blows to them, in the direction from bottom to top. This facilitates easy separation of ice dams and eliminates damage to the roof and eaves of buildings inherent in known devices and methods for removing ice dams. It is a curved rotary fork freely moving along a cable stretched along the roof overhang, the arms of which are of different sizes, and its legs are connected by an angle. At the moment of abundant ice formation, the worker grabs the ring with a special hook, moves to a safe place and, moving the rod down, causes side blows to the ice by turning the fork. To move to the next work area, he lifts the ring with a hook, moves the rotary fork to this area and removes ice in the manner indicated above. 1 ill.
Use: the device refers to a means that facilitates the work of workers, reduces the level of danger of deicing work, and increases the safety of buildings during their operation during periods of heavy ice formation. A device for chipping ice in the funnel area of a drainpipe is known, including a tray and a chipping device made with an annular body on which a spring-loaded tray with a rod attached to it is hinged. The closest analogue is a device for cleaning roof overhangs from ice, consisting of a movable along the side roofing using a system of blocks and cables of a block, equipped with a counterweight and blades for removing ice from the side projections of drainpipes and hingedly connected to a board with pointed edges, including approximately 50 parts. The purpose of the invention is to simplify the design, eliminate mechanical damage roofing by changing the pattern of application of the impact force and repeatedly reducing its magnitude. The essence of the invention: ice dams are removed by applying lateral blows to them from a rotating fork that moves freely along the eaves of the roof, the legs of which are connected by an angle, and its arms are of different sizes. The drawing shows a device general form. It includes bracket 1 and 2, which are attached with screws 3, 4, 5 and 6 to the eaves of the building (next to the drain pipe funnels). Using screws 7 and 8, a cable 9 is stretched horizontally between the brackets, along which a rotary fork 11 can move freely by means of a rod 10, the arms of which are of different sizes (ratio of at least 1:3), and its legs are connected by an angle 12. To ensure free movement of the rod along smaller arm of the fork (which is necessary to facilitate the movement of the fork along the cable to the next zone of ice formation), the upper end of the rod is made in the form of a ring loop 13. A ring 14 is attached to the lower end of the rod at a height of at least 3.3 m from the ground level (for the purpose of device control exceptions by strangers). To activate the device, a special hook 15 is provided. The legs 16 of the rotary fork, when turning it, rest against the rigid edge of the eaves overhang 17, limit the fork from turning. A device for removing ice from roof overhangs works as follows. When ice forms, the worker, using a hook 15, hooks the ring 14, moves to a safe place (8-9 m from the expected place where the ice will fall) and, moving the rod 10 down, applies side blows to the ice with an angle 12 attached to the rotary fork 11, and not on the roof. The combination of side impacts with their direction from bottom to top promotes easy separation of ice from the roof overhangs (since ice does not tolerate bending, fracture, and, during thaw, shear loads) and eliminates (due to negligible loads) damage to the eaves overhang paintings (holes, dents, etc.), peeling of plaster from the cornice, inherent in known devices and methods for removing ice dams (mainly a crowbar, a shovel). The curvature of the rotary fork 11 and the presence of an angle 12 on its larger arm ensures its return to its original position. To move to the next zone of ice formation, the worker, using a hook 15, slightly lifts the ring 14, acting on the rod 10, moves the rotary fork 11 along the cable 9 to this zone and removes the ice in the manner indicated above.
Claim
A device for cleaning roof overhangs from ice, including a system of cables and a chipping device, characterized in that it is equipped with a curved rotating fork that moves freely along a cable stretched horizontally along the roof overhang, the arms of which are of different sizes with a ratio of at least 1 3, and its legs are connected by an angle, by turning the fork on ice, causing side impacts directed from bottom to top.
The device for removing ice from roof overhangs is designed to facilitate the work of workers, reduce the level of danger of work, and increase the safety of buildings during their operation during periods of heavy ice formation. Unlike the known ones, the proposed device allows you to remove ice by applying lateral blows to them, in the direction from bottom to top. This facilitates easy separation of ice dams and eliminates damage to the roof and eaves of buildings inherent in known devices and methods for removing ice dams. It is a curved rotary fork freely moving along a cable stretched along the roof overhang, the arms of which are of different sizes, and its legs are connected by an angle. At the moment of abundant ice formation, the worker grabs the ring with a special hook, moves to a safe place and, moving the rod down, causes side blows to the ice by turning the fork. To move to the next working area, he lifts the ring with a hook, moves the rotary fork into this area and removes ice in the manner indicated above. 1 ill.
DESCRIPTION OF THE INVENTION TO THE PATENT
Use: the device refers to a means that facilitates the work of workers, reduces the level of danger of deicing work, and increases the safety of buildings during their operation during periods of heavy ice formation. A device is known for chipping ice in the funnel area of a drainpipe, including a tray and a chipping device made with an annular housing on which a spring-loaded tray with a rod attached to it is hingedThe closest analogue is a device for cleaning roof overhangs from ice, consisting of a bar moved along the side of the roof using a system of blocks and cables, equipped with a counterweight and blades for removing ice from the side projections of drainpipes and hingedly connected to a board with pointed edges, including approximately 50 details
The purpose of the invention is to simplify the design, eliminate mechanical damage to the roof by changing the pattern of application of the impact force and repeatedly reducing its magnitude. The essence of the invention: ice dams are removed by applying lateral blows to them from a rotating fork that moves freely along the eaves of the roof, the legs of which are connected by an angle, and its arms are of different sizes. The drawing shows the device, general view. It includes bracket 1 and 2, which are attached with screws 3, 4, 5 and 6 to the eaves of the building (next to the drain pipe funnels). Using screws 7 and 8, a cable 9 is stretched horizontally between the brackets, along which a rotating fork 11 can move freely by means of a rod 10, the arms of which are of different sizes (ratio of at least 1:3), and its legs are connected by an angle 12. To ensure free movement of the rod along smaller arm of the fork (which is necessary to facilitate the movement of the fork along the cable to the next zone of ice formation), the upper end of the rod is made in the form of a ring loop 13. A ring 14 is attached to the lower end of the rod at a height of at least 3.3 m from the ground level (for the purpose of excluding control of the device by unauthorized persons). To activate the device, a special hook 15 is provided. The legs 16 of the rotary fork, when turning it, rest against the rigid edge of the eaves overhang 17, limit the fork from turning. A device for removing ice from roof overhangs works as follows. When ice forms, the worker, using a hook 15, hooks the ring 14, moves to a safe place (8-9 m from the expected place where the ice will fall) and, moving the rod 10 down, applies side blows to the ice with an angle 12 attached to the rotary fork 11, and not on the roof. The combination of side impacts with their direction from bottom to top promotes easy separation of ice from the roof overhangs (since ice does not tolerate bending, fracture, and, during thaw, shear loads) and eliminates (due to negligible loads) damage to the eaves overhang paintings (holes, dents, etc.), peeling of plaster from the cornice, inherent in known devices and methods for removing ice dams (mainly a crowbar, a shovel). The curvature of the rotary fork 11 and the presence of an angle 12 on its larger arm ensures its return to its original position. To move to the next zone of ice formation, the worker, using a hook 15, slightly lifts the ring 14, acting on the rod 10, moves the rotary fork 11 along the cable 9 to this zone and removes the ice in the manner indicated above.
CLAIM
A device for cleaning roof overhangs from ice, including a system of cables and a chipping device, characterized in that it is equipped with a curved rotating fork that moves freely along a cable stretched horizontally along the roof overhang, the arms of which are of different sizes with a ratio of at least 1 3, and its legs are connected by an angle, by turning the fork on ice, causing side impacts directed from bottom to top.Although it worked well, there was still minimal play in the sole (no more than 0.3-0.5 mm), which is why delicate matter how removing the overhangs sometimes played cruel jokes on me.
Immediately I came across a Makita 3707 edge maker in a pawn shop for only 2500 rubles, so I simply couldn’t pass it up. It did not have a special edge base for removing overhangs, like the rest of the equipment, so it required modification quite traditionally. That is, the formation of a “step”.
To make this step, this time I used a piece of 8 mm plexiglass, which I found in the trash)) It used to be a chair, now it will be a router (I now regret that I did not collect all the large pieces). The marking is carried out with a sharp awl. 
It cuts perfectly on a table saw. That is, we give it a rectangular shape. 
We smooth the edges of the cut using a belt sander. 
At the end adjacent to the cutter we form a trapezoid. It would be necessary to make a triangle so that any internal radii could be processed, but then the rigidity of the sole would suffer, so I figured that small radii were rare and did not bother. 
Applying it to the sole, mark and drill out the mounting holes. We recess them to hide the screw heads. We check this moment separately so that nothing protrudes. 
We fix the part to the sole (in all available technological holes). 
I held it in my hands - it’s not very comfortable - there’s not enough handle on the sole. In its capacity, I took a handle from a router, which was used as a . The nut is driven in.
The nut also had to be hidden. To do this, I used a 25 mm Forstner cutter to drill a niche 2 mm deep. 
I drilled 4 holes in it for the nut antennae. The photo didn't turn out very well). 
The nut spoke with reverse side, and the length of the screw was excessive, so I cut it out of the fragment and glued the lining under the handle with glue... It didn’t turn out as neatly as intended, but God bless him.... 
The handle also had to be supplemented with a flat nut (from an Ikea table) 
The result is such a fairly rigid structure. 
It is not without its shortcomings (I already wrote about the “corner”...) The aesthetic component also suffered... Of course, it would be necessary to smooth out the right angles and edges, I think I’ll do this in the near future, otherwise “on the garage fell at night - didn’t have time))))) 
Now there will be a series of test work. If it doesn’t play like the previous one, then I’ll leave it unchanged. If you don’t like it, I’ll make a two-layer sole. The first layer will cover the entire sole, and I will screw the second one from below, at the same time sharpening the tip. It will be more reliable this way.
Price: 23,000 rub.
Used for removing overhangs from PVC, melamine, and natural veneer edge materials.
The only router that provides milling of a straight or angular chamfer along the face or the end of a panel without replacing the cutter.
Thanks to the unique tilting system and fine adjustment system when working with the edge router mod. FR292R there are a lot of additional possibilities, and wide base allows you to effectively control the milling process.
With a bevel router, the process of milling with a conical router is easier, and the results are better!
The drive can be installed in a position corresponding to 46.5?, while the cutting edge of the cutter will be inclined by 1.5? relative to the plane, preventing damage to the surface when milling overhang of edge material. After completing the milling of the overhangs along the face (Fig. 1), simply set the cutter on the same level with the support platform to remove the overhangs from the end of the workpiece (Fig. 2). Thanks to simple operation With the only adjustment you can remove overhangs along the face and end of the workpiece without complex reconfiguration.
When installing the drive in a horizontal position, you can form a chamfer when removing overhangs at an angle of 45?. You can also form a chamfer at any angle you need (A?) in the range from 0? up to 45?, tilting the drive to the angle you need 45? +A? according to the tilt angle setting scale)
Milling with a cylindrical cutter
Standard equipment:
Conical cutter 90? (1140087)
Groove cutter dia. 18 mm (1140016)
Collet clamp dia. 8 mm
Copier with bearing
Side stop with circular device
Service keys
Transport plastic case
Additional equipment:
Connecting hose 3.5 m (6446073)
Collet clamp dia. 6 mm (1222084)
Collet clamp dia. 6.35 mm (1222085)
Copy rings
Specifications
| Machine characteristics | Parameter |
|---|---|
| Stepless speed control | There is |
| Machine weight, kg | 2,2 |
| Double insulation | There is |
| Maximum cutter diameter, mm | 25 |
| Installed power, W | 750 |
| Collet chuck, mm | 8 |
| Rotation speed, rpm | 14000 - 30000 |
