The device for removing frost from roof overhangs is designed to facilitate the work of workers, reduce the level of danger of work, increase the safety of buildings during their operation during the period of abundant ice formation. In contrast to the known, the proposed device allows the removal of frost due to the application of side impacts on them, in the direction from the bottom up. This contributes to the easy separation of frost and eliminates damage to the roof and cornices of buildings, inherent in known devices and methods for removing frost. It is a bent swivel fork freely moving along a cable stretched along the roof overhang, the shoulders of which are different in size, and its legs are connected by a corner. At the moment of abundant ice formation, the worker hooks the ring with a special hook, retreats to a safe place and, moving the rod down, by turning the fork, inflicts side impacts on the ice. To move to the next working area, he lifts the ring with a hook, moves the swivel fork to this zone and removes ice in the manner indicated above. 1 ill.
Usage: the device refers to the means that facilitate the work of workers, reduce the level of danger of work to remove frost, increase the safety of buildings during their operation during the period of abundant ice formation. A device for cleaving ice in the funnel area of a downpipe is known, including a tray and a cleaving device made with an annular body on which a spring-loaded tray is hinged with a rod attached to it. The closest analogue is a device for cleaning roof overhangs from ice, consisting of roofing using a system of blocks and cables of a bar equipped with a counterweight and blades for removing ice from the side ledges of drainpipes and hinged to a board with pointed edges, including about 50 parts Purpose of the invention simplification of the design, exception mechanical damage roofs by changing the pattern of application of the impact force and reducing its magnitude many times over. The essence of the invention: the removal of frost is carried out by applying side impacts on them by a swivel fork freely moving along the roof overhang, the legs of which are connected by a corner, and its shoulders are of different sizes. The drawing shows a device general form. It includes brackets 1 and 2, which are attached with screws 3, 4, 5 and 6 to the eaves of the building (next to the drainpipe funnels). Using screws 7 and 8, a cable 9 is horizontally stretched between the brackets, along which a rotary fork 11 can freely move by means of a rod 10, the arms of which are different in size (a ratio of at least 1:3), and its legs are connected by a corner 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 ice formation zone), the upper end of the rod is made in the form of an annular loop 13. A ring 14 is tied to the lower end of the rod at a height of at least 3.3 m from ground level (in order to fixture control exceptions outsiders). To actuate the device, a special hook 15 is provided. The legs 16 of the swivel fork, when it is turned, resting against the rigid edge of the pattern of the cornice overhang 17, limit the fork from turning. A device for removing frost from roof overhangs works as follows. When icing is formed, the worker, using hook 15, hooks ring 14, moves to a safe place (8-9 m from the expected place where icing will fall) and, moving the rod 10 down, inflicts side blows on the icing with corner 12 attached to the rotary fork 11, and not on the roof. The combination of side impacts with their direction from bottom to top contributes to the easy separation of ice from roof overhangs (because ice does not tolerate bending, breaking loads, and during thaw and shear) and eliminates (due to negligible loads) damage to cornice overhang patterns (holes, dents, etc.), delamination of plaster from the eaves, inherent in known devices and methods for removing ice (mainly a crowbar, a shovel). The curvature of the swivel fork 11 and the presence of a corner 12 on its larger shoulder ensures its return to its original position. To move to the next zone of icing, the worker, using the hook 15, slightly raises the ring 14, acting on the rod 10, moves the swivel fork 11 along the cable 9 to this zone and removes the icing in the above way.
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 swivel fork freely moving along a horizontally stretched cable along the roof overhang, the arms of which are different in size with a ratio of at least 1 3, and its legs are connected by a corner, causing side impacts directed from the bottom up by turning the fork on the ice.
The device for removing frost from roof overhangs is designed to facilitate the work of workers, reduce the level of danger of work, increase the safety of buildings during their operation during the period of abundant ice formation. In contrast to the known, the proposed device allows the removal of frost due to the application of side impacts on them, in the direction from the bottom up. This contributes to the easy separation of frost and eliminates damage to the roof and cornices of buildings, inherent in known devices and methods for removing frost. It is a bent swivel fork freely moving along a cable stretched along the roof overhang, the shoulders of which are different in size, and its legs are connected by a corner. At the moment of abundant ice formation, the worker hooks the ring with a special hook, retreats to a safe place and, moving the rod down, by turning the fork, inflicts side impacts on the ice. To move to the next working area, he raises the ring with a hook, moves the swivel fork to this area and removes ice in the manner indicated above. 1 ill.
DESCRIPTION OF THE INVENTION TO THE PATENT
Usage: the device refers to the means that facilitate the work of workers, reduce the level of danger of work to remove frost, increase the safety of buildings during their operation during the period of abundant ice formation. A device is known for chipping off ice in the funnel zone of a downpipe, including a tray and a chipping device made with an annular body, on which a spring-loaded tray is hinged with a rod attached to it.The 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 ledges of drainpipes and hinged to a board with pointed edges, including about 50 details
The purpose of the invention is the simplification of the design, the exclusion of mechanical damage to the roof by changing the pattern of application of the impact force and reducing its magnitude many times over. The essence of the invention: the removal of frost is carried out by applying side impacts on them by a swivel fork freely moving along the roof overhang, the legs of which are connected by a corner, and its shoulders are of different sizes. The drawing shows the fixture, general view. It includes brackets 1 and 2, which are attached with screws 3, 4, 5 and 6 to the eaves of the building (next to the drainpipe funnels). Using screws 7 and 8, a cable 9 is horizontally stretched between the brackets, along which a rotary fork 11 can freely move by means of a rod 10, the arms of which are different in size (a ratio of at least 1:3), and its legs are connected by a corner 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 ice formation zone), the upper end of the rod is made in the form of an annular loop 13. A ring 14 is tied to the lower end of the rod at a height of at least 3.3 m from ground level (in order to exclusion of control of the device by unauthorized persons). To actuate the device, a special hook 15 is provided. The legs 16 of the swivel fork, when it is turned, resting against the rigid edge of the pattern of the cornice overhang 17, limit the fork from turning. A device for removing ice from roof overhangs works as follows. When icing is formed, the worker, using hook 15, hooks ring 14, moves to a safe place (8-9 m from the expected place where icing will fall) and, moving the rod 10 down, inflicts side blows on the icing with corner 12 attached to the rotary fork 11, and not on the roof. The combination of side impacts with their direction from bottom to top contributes to the easy separation of ice from roof overhangs (because ice does not tolerate bending, breaking loads, and during thaw and shear) and eliminates (due to negligible loads) damage to cornice overhang patterns (holes, dents, etc.), delamination of plaster from the eaves, inherent in known devices and methods for removing ice (mainly a crowbar, a shovel). The curvature of the swivel fork 11 and the presence of a corner 12 on its larger shoulder ensures its return to its original position. To move to the next zone of icing, the worker, using the hook 15, slightly raises the ring 14, acting on the rod 10, moves the swivel fork 11 along the cable 9 to this zone and removes the icing in the above way.
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 swivel fork freely moving along a horizontally stretched cable along the roof overhang, the arms of which are different in size with a ratio of at least 1 3, and its legs are connected by a corner, causing side impacts directed from the bottom up by turning the fork on the ice.Although it worked well, there was still a minimum play in the sole (no more than 0.3-0.5 mm), which in such delicate matter how the removal of overhangs sometimes played cruel jokes with me.
Immediately I came across a Makita 3707 edging machine in a pawnshop for only 2500 r, so I simply could not pass by. It did not have a special edge base for removing overhangs, like the rest of the equipment, so it traditionally required refinement. That is, the formation of a "step".
For the manufacture of this step, this time a piece of 8 mm plexiglass was used, which I found in the garbage dump)) It used to be a chair, now it will be a router (I now regret that I didn’t collect all the large pieces). Marking is carried out with a sharp awl. 
It cuts beautifully on a table saw. That is, we give it a rectangular shape. 
The edges of the cut are aligned on a belt grinder. 
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 reasoned that small radii are rare and did not bother. 
Attaching to the sole, mark and drill the mounting holes. We deepen them to hide the screw heads. We check this moment separately so that nothing comes out. 
We fix the part to the sole (into all available technological holes). 
I held it in my hands - not very convenient - there is not enough handle on the sole. In her capacity, I took a handle from a milling cutter, which was used as a . Hammer nut.
The nut also had to be hidden. To do this, with a 25 mm Forstner cutter, I drilled a niche 2 mm deep. 
I drilled 4 holes in it for the antennae of the nut. The photo didn't turn out very well. 
Nut performed with reverse side, and the length of the screw was excessive, so I cut it out of the wreckage and glued the lining under the handle to the glue ... It turned out not as neat as it was intended, but God bless him .... 
The handle also had to be supplemented with a flat nut (from the Ikeev table) 
It turned out such a fairly rigid structure. 
It is not without flaws (I already wrote about the "corner" ...) The aesthetic component also suffered ... the garage fell overnight - did not have time))))) 
Now there will be a series of test work. If it does not backlash, like the previous one, then I will leave it unchanged. If you don't like it, I'll make a two-layer sole. The first layer will be on the entire sole, and I will screw the second one from below, at the same time sharpening the tip. So it will be more reliable.
Price: 23,000 rubles.
It is used for removing overhangs of PVC, melamine and natural veneer.
The only milling cutter that provides milling of a straight or angular chamfer on a face or on the end of a panel without changing the cutter.
Thanks to the unique tilting system and fine adjustment system when working with edge router mod. FR292R there are a lot of additional features, and wide base allows you to effectively control the milling process.
With an inclined router, the process of milling with a conical cutter is easier, and the results are better!
The drive can be set to 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 the overhang of the edging material. After milling the overhangs along the plane (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 control With a single adjustment, you can remove overhangs along the face and along the end of the workpiece without complicated readjustment.
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 desired angle of 45? +A? on the scale for setting the angle of inclination)
Milling with a cylindrical cutter
Standard equipment:
Mill conical 90? (1140087)
Grooving cutter dia. 18 mm (1140016)
Collet chuck 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 chuck dia. 6 mm (1222084)
Collet chuck dia. 6.35 mm (1222085)
Copy rings
Specifications
| Machine characteristics | Parameter |
|---|---|
| Infinitely variable 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 frequency, rpm | 14000 - 30000 |
