RussianPatents.com

Tool with replaceable attachment. RU patent 2274980.

FIELD: equipment for conducting various processes with the use of replaceable attachments for soil mellowing, and also for cutting, sharpening or scraping of materials and objects.

SUBSTANCE: retaining-detachment parts are equipped with guiding bushing having transverse slot. Shank of replaceable attachment has transverse depression and is located in guiding bushing. Rotating bushing has internal protrusion. Handle has pusher with stroke restricting member and means for rotating said rotating bushing in relation to handle, said pusher contacting with end of replaceable attachment. Rotating bushing is put onto guiding bushing which is inserted with its one end into handle 2 and abuts with its other end against replaceable attachment. Internal protrusion of rotating bushing, transverse slot of guiding bushing and transverse depression of shank are arranged in single plane so that shank of replaceable attachment is fixed or released from shifting upon rotation of rotating bushing.

EFFECT: simplified construction, reduced labor intensity for manufacture thereof, and convenient operation and maintenance.

5 dwg

IPC classes for russian patent Tool with replaceable attachment. RU patent 2274980. (RU 2274980):

A01B1/22 - Attaching the blades or the like to handles (handles for tools, or their attachment, in general B25G); Interchangeable or adjustable blades

A01B1 - Hand tools (edge trimmers for lawns A01G0003060000)

Another patents in same IPC classes:

Replaceable hand-held tool / 2267242
Replaceable hand-held tool has replaceable working device with connection member equipped with at least one through oval-shaped opening, shank-holder having shank and holder for replaceable working device and including shank-tip equipped with threaded portion and adapted for retaining of working device in assembled state by means of pin. Shank tip has axial through opening provided on the side of attachment of replaceable working device and equipped with centering annular bore and threaded portion provided on its internal surface. Connection member is made cylindrical and has threaded portion and thread-free portion provided on its external surface. Diameter of thread-free portion is equal to diameter of centering bore. Round through apertures are formed on its thread-free portion. Diametrical slots are formed on end surface of shank tip, on the side of attachment of replaceable working device, said slots being adapted for receiving of fixing pin with wedge-shaped working surface. Set of through openings are provided on side surface of shank tip, on portion equipped with centering bore, said openings being adapted for receiving of pin having cylindrical working surface. Connection units have retainer, such as pin with rubber ring placed into one of round through apertures of holder and into oval-shaped opening of connection member, to prevent replaceable working device and handle from unscrewing away from shank.

General-purpose hitched cultivator / 2273976
Cultivator has frame with carrier wheels. Metal triangular flat hoes and pulling mechanism for chain-type rotating module are mounted on frame. Mellowing teeth are fixed to each link of said chain, which is mounted in rear part of frame. Frame is composed of arcuate and rectilinear beams whose ends are connected to one another. Vertical tines of working tools are attached to beams. Working tools are formed as curved plates with faceplates on their cutting edges or in the form of double-convex plates. Teeth of chain sweep have flattened shape and are mounted at an angle to chain longitudinal axis. Number of teeth on one link is unlimited.

Manually operated cultivator / 2273975
Cultivator has hollow tine and electric engine for drill, said engine being fixed on tine and connected to drive shaft coupled through toothed transmission to horizontal shaft. Toothed transmission is mounted within casing. Working tools similar to cutters are detachably secured on ends of horizontal shaft protruding through casing. Hollow tine of cultivator is formed as straight pipe with flange at its one end for connection to casing of toothed transmission formed conical and to joining unit on its other end for attachment of electric drill. Electric engine for drill is used for rotation of drive shaft equipped at its ends with shanks for respective attachment within electric drill spindle and on drive gear of conical toothed transmission. Electric drill handle is used as electric engine controlling means. Bolts for attachment of cutter knives are positioned so that nuts are arranged at the side of ends of horizontal shaft extending from casing.

Combined tillage tool / 2273119
Tillage tool has plow-bottom surface and mellower, which are mounted on tine. Plow-bottom surface is positioned in conjunction with mellower on single tine so that position of said surface in vertical plane relative to tine may be adjusted. Mellower is made in the form of chisel and supporting shoe. Working part of chisel is beveled at an angle of 40-50 deg toward side opposite to direction of turning of soil layer. Chisel working part sharpening angle is 25-35 deg. Chisel is positioned at an angle of 30-50 deg to direction of advancement, and its point is arranged at the same level with lower surface of supporting shoe.

Self-propelled soil mellowing apparatus / 2271640
Mellowing apparatus has frame, power plant, caterpillar-type propeller with supporting rollers, tracks, and teeth. Propeller comprises two sections. Teeth are made in the form of detents staggered on tracks. Propeller sections are spaced from one another by gap equal to width of one section. Each of propeller sections is made triangular in vertical cross section. Wheel-sprocket is disposed in upper corner of each section of propeller and rigidly joined to frame and connected to reducer. Wheel-sprocket has radius equal to that of supporting roller disposed in opposite corner of section. Supporting roller positioned in corner between wheel-sprocket and supporting roller, which are equal in radius, have radius twice the radius of wheel-sprocket and supporting roller. Mellowing apparatus has supporting rollers located so that their positions in vertical plane may be adjusted.

Machine for basic soil cultivation by digging method / 2269880
Machine has frame with power source, transfer mechanism, propellers with pivotally connected working tools, and deepening rollers. Each of propellers consist of paired set of wheels. Working tools are of two-link type and are equipped with return springs. Deepening rollers are additionally provided with digging sleeves.

Working tool for tillage apparatus / 2269238
Tillage tool has flat disks with central mounting opening and annular circumferential cutting edge, and teeth provided on side surface. Teeth are made in the form of acutely sharpened small flat disks loosely put on shafts, which are rigidly and symmetrically attached to side surface of main disk at both sides thereof so that cutting edges of each small disk are arranged at the same level with cutting edge of main disk. Small disks have different diameters: half the disks have diameter twice the diameter of other half of the disks, said disks being arranged in alternation and at equal pitch with respect to one another. Small disks are spaced from main disk by distance half the distance of larger disks. All the disks are put on their respective shafts for rotation on roller bearings.

Soil and ground deep cultivator / 2269237
Deep cultivator has knife-shaped tine inclined to horizontal plane and to cultivator advancement direction and equipped with front face and chisel fixed in lower part of tine. Chisel has point disposed forward of tine front face. Chisel has wear-resistant coating on its working surface. Chisel is made in the form of hollow cylinder with axis of symmetry arranged at an angle to horizontal plane. Oval-shaped part of cylinder cross-section is positioned in horizontal plane at lower part of tine to define point with sides. Sectional plane of hollow cylinder defines elliptical cutting edge. Longitudinal slot in upper part of hollow cylinder defines chisel made by bending a part of cylinder in direction of advancement of cultivator. Bent part of cylinder forms protective shield for protecting lower part of tine from hanging plant remains. Mounting openings in body of truncated part of hollow cylinder in parallel plane of oval-shaped part are adapted for joining to members disposed in lower part of tine. Chisel is joined to lower part of tine through pairs of cylindrical pins, which are detachably arranged in mounting openings and tine members having mated cylindrical surface.

Method for planting of potato tubers / 2269236
Method involves forming planting holes; placing potato tubers in planting holes; covering planting holes containing potato tubers therein with soil by means of forks on thrust tine. Planting hole is closed with soil, which had been extracted upon forming of next planting hole, by horizontally displacing forks with soil on thrust tine, positioning fork above potato tuber and turning fork with soil through 90 deg.

Method for restoration of contaminated soil, ground and water / 2243638
Method involves mechanical removal of excessive contaminants from surface and reducing toxicity of contaminated soil; sowing green manure crops and perennial grasses; preliminarily removing taking soil samples from contaminated surface and separating native contaminant destructors therefrom; after mechanical removal of contaminant from soil surface, providing sequential treatment of plot soil with water-soluble humates and at least double treatment with native contaminant destructors; mellowing soil; applying lime with mineral fertilizers such as saltpeter, double superphosphate and calcium chloride. Green manure crops are sown after application of fertilizers. Method further involves grinding green manure crops, plowing into soil and covering with soil by means of covering roll.

Spade / 2245005
Spade has shank, blade with rigidity rib in mid portion, scraper disposed on blade for moving thereon, and handle. Two slots are made in blade at both sides of rigidity rib, in parallel therewith. Scraper is composed of two parts disposed at both sides of blade and connected with one another through slots by means of two bolts. Scraper profiles conform to profile of respective sides of blade, including rigidity rib and handle end. Part of scraper arranged at front side of blade is equipped with supporting surface and two guiding pins rigidly connected with said surface and adapted for movement along slots.

Hand-held horticultural hiller / 2245006
Horticultural hiller has share with undercutting knife on its front part, tine attached to share and equipped with bracket, pulling handle pivotally fixed on bracket, and hiller deepening arm. Share moldboards are made in the form of two screws with coils oriented in opposite directions. Screws are provided with blades and arranged in horizontal plane. Hiller has moving wheel mounted on shaft fixed on tine and drive wheel arranged between screws. Moving wheel and drive wheel are engaged with one another through pin.

Tillage method / 2245009
Method involves cutting soil by means of plow share having strut diagonally extending from lower part of moldboard to frame to provide for ripping soil open from inside. Employment of strut allows force acting upon plow or cultivator to be reduced and prevents plow or cultivator from clogging with plant remains.

Hole cutting apparatus / 2246189
Apparatus has pushing-out device, which may be withdrawn from soil during operation without applying of substantial muscular force by user. Apparatus is formed as ring made from pipe section and coil-type spring attached to ring with its lower coil. Ring is adapted for placing onto soil. Inner diameter of ring is equal to outer diameter of larger base of conical blade and inner diameter of spring exceeds outer diameter of said larger base. Upper coil of spring is attached to lower ends of carriers and lower and upper coils of spring are biased. Ratio of spring wire diameter to outer diameter of section of supporting ring is 0.35:0.44. Lower surfaces of blade cutting edge and supporting ring are lying in single plane.

Light-weight spade / 2246190
Spade has shank bushing rigidly coupled to flat bayonet. The latter is equipped with side ends-wings bent in rearward direction and with axial shank. Bushing is extending to mid portion of bayonet and is equipped with sharpened front end having edges contacting with and rigidly connected to flat bayonet.

Method and apparatus for controlling of soil erosion on slopes / 2246807
Method involves undercutting soil layer after harvesting of preceding crop; directing stubble remains under soil layer and covering with undercut soil layer. After being covered with undercut soil layer, stubble remains form along edge of said layer swath of soil layer of 4-6 cm width. Predetermined shape and parameters of swaths allow evaporation of moisture and silting to be inhibited and, accordingly, moisture retention to be increased. Apparatus has frame with carrier wheel and flat rack provided with front cutting edge and inclined with its lower end forward and to the side. Flat hoe is fixed on lower end of rack. Wing made curvilinear along direction of advancement of apparatus is positioned at rear edge of rack so that its convex part is extending upward and to the side. Load feeding belt conveyor is connected with frame through two pivot links. Flexible rods for picking up stubble remains from field are fixed on conveyor belt. Belt conveyor is positioned on tines of supporting rollers and is oriented with its feeding end under upper curvilinear edge of wing. One of pivot joints and tines of supporting rollers are equipped with individual length regulators.

Apparatus for forming of intermittent micro raised portions / 2246808
Apparatus has frame and blade-type swivel connected with frame by means of free-motion mechanism. Blades of swivel are made concave and movably fixed thereon. Locking mechanisms for each individual blade are mounted on blade-type swivel. Locking mechanism switch is positioned on frame. Such arrangement and interconnection between said parts of apparatus allow micro raised portions to be provided within wide range of soil conditions.