RU2154392C1 - Shoe device facilitating overcoming of ground draft in the process of using hand-held tillage tool - Google Patents

Abstract

FIELD: shoe industry. SUBSTANCE: device is adapted for attachment under shoe sole and has front part of increased strength, supporting plate and two-rack platform with perforated scale. Supporting plate and platform are connected in series to front part. Fastening bracket ends are inserted in perforations of platform for fixing shoe on supinator at optimum distance from front part working surfaces. When user displaces ground by means of digger, shank and blade mainly operate as double-armed lever, and front part serves as pivot thrust. Reciprocating motions of shank by respective motion of one hand provide discharge of cut ground layer onto surface and throwing of it upward or aside with minimum force applied to digger. EFFECT: simplified construction, increased efficiency by reduced force applied to user's joints and muscles. 1 dwg

Description

 The proposed device relates to means intended for fastening on shoes.

 Known devices that reduce the load on the muscles and joints of the hands, while ensuring protection of the front of the foot when moving the soil manually using a shovel, garden pitchfork, etc. These include units and parts mounted in special shoes.

 One of the analogues of the proposed supinar is the invention of A.P. Kupriyanova (AC SU N 151221, class A 43 C 13/16, 1962) "Protective toe of work shoes." An additional layer of vulcanized rubber reinforced with a metal mesh-shaped sock significantly increases the protective properties of shoes.

 Also, the shoe fitting described in US patent 2807098, A 43 C 13/12, 1957 and which is a metal nozzle for shoes for the lawn mower can serve as an analogue to supinar. The proposed form of the nozzle extremely limits the possibility of its use as a hinge stop for manual tillage implements.

 The technical result of the invention is to facilitate overcoming the resistance of the soil when using a manual tillage tool.

 The supinera contains a pin — an increased strength of the front part of the supinera, which has a working surface bent upwards and a support plate sequentially connected to the pin, rigidly fastened to the double-deck platform. From the outside, the holes of the hole scale of each rail include the ends of the mounting brackets, made with the possibility of displacement within the platform and the base plate, fixing the position of the work shoes on the supinar at an optimal distance from the working surfaces of the pin.

 The drawing shows the main parts and details of the supinar: pin 1 with screws 2, one of the pin of pin 3, support plate 4, front 5 and rear 6 mounting brackets, the ends of which enter the holes of the hole scale 7, the length of which is limited by the size of the rails 8.

 The pin 1 may have a screw (see drawing) fastening or rigid joint, for example, by electric welding with rails 6. In the first case, the supine is equipped with pin-doubles having different heights.

 In order not to clutter the drawing, work shoes and their fixation on the supinar with lacing or straps using fastening brackets 5 and 6 are not shown.

 The work of the supinar when moving (digging) the soil manually is as follows.

 Moving the soil manually, the shank and the blade of the shovel are repeatedly used as a two-arm lever, for which the supine is proposed to be used with an articulated emphasis. Directly perceiving the loads from the lower part of the handle, its pin 1 transfers these loads through the base plate 4 to the soil surface. The role of the rack platform 8 is auxiliary: to ensure reliable contact of the supinar with working shoes when moving the base plate 4 onto the spade thrust bearing, and after the part of the soil has been cut by the blade of the spade and its upper layers are shifted forward, fix the position of pin 1 at the joint of the handle with a blade of a shovel.

 When the blade of a shovel sticks into the ground, the handle stays upright. Then the top of the handle with one hand (it is more convenient so as not to bend each time) is sent forward so that the support plate 4, sliding off the spade's thrust bearing, sits on the ground surface. In this case, pin 1 will occupy a starting position, as it were, will be closely moved to the bottom of the handle. Between the back of the blade of the shovel and the section of the pillar, from which the upper layers of soil have just been shifted forward, a similarity to the slit-like cavity forms over which the base of the pin 1 hangs. Hence, the need for a support plate 4 located behind the pin 1 with the possibility of being outside the slot-hole rely on sufficiently strong soil (rear).

 Almost 60-80% of the effort has to be spent on overcoming the resistance of root weaves in the soil and the adhesion of its particles - the most durable at a depth near the bottom edge of the shovel blade. But the extremely low location of the working surfaces of the pin 1 makes it possible to use the lever system of the handle-blade to maximize the benefits so that with one hand and with minimal effort to overcome the above ground resistance to its displacement. It is enough to take the shovel handle on itself, at the same time the soil cut from the pillar from under the supinar will be issued to the surface of the soil.

 It is more convenient to work and the use of a supinar will be more effective if the upper end of the handle is crowned with at least a T-shaped handle-nozzle. And even more so, if the nozzle is L-shaped (shifted to the right or left - under the most efficient hand); efforts will be required an order of magnitude less when with one hand you “shoot” the cut soil up and immediately tilt it forward or to the sides (left and right).

 A significant advantage of the proposed design of the supinar is that in its manufacture high-quality rolled products can be used: corner - for the pin; tubular, round or square - for platform rods; strip - for a support plate, etc. Drill hole scale in the rods of the platform are located so that the ends of the mounting brackets will not be pressed into the ground and will not interfere with the sliding of the supinar on the shovel. The manufacturing technology of such a supinar involves a minimum of conventional machine tool equipment and bench tools.

 Supinar can be used not only as a mechanical prosthesis for people in dire need of it. It will also be useful and necessary in the arsenal of every family that has a garden or garden plot. To dig even the standard six hundredths of a garden-garden - in fact, manually move 120-150 cubic meters of soil. But this not always the most enjoyable job can be done easily and simply - without deep bends every time and half squats, without overloads and excessive tension of the whole body, without pain in the muscles and joints of the limbs, if you also supplement your spade with a supinar. Duplication of supinars over time will obviously correspond to the number of shovels and garden pitchforks produced annually by the industry.

Claims (1)

 A shoe device that facilitates overcoming soil resistance when using a manual tillage tool, containing a two-rack platform, rigidly fastened with a support plate and increased strength with the front part in the form of a pin having a working surface bent upwards, and through holes in the hole scale of each platform rack with an external the ends of the fastening brackets are inserted, made with the possibility, when they are shifted within the platform and the base plate, to fix the position of the work shoe in imalnom its distance from shtevnya.