ITBA20130030A1 - CARRIOTINOZZA - Google Patents

Description

DESCRIPTION

"CARRIOTINOZZA"

The CARRIOTINOZZA wants to be a means of collection and transport, which develops the concept of wheelbarrow by improving it and hypothesizing its union with the bin - tub, to create a single tool that exploits both functions.

PRIOR STATE OF THE ART

To date, the WHEELBARROW and the BIN-TINOZZA are on the market separately for lime, or for other bulk building materials,

1. THE WHEELBARROW

The wheelbarrow is a tool that allows you to carry, by hand, for short distances, loose materials or heavy and bulky objects; it is mainly used by construction operators, for the handling of cement, mortar, bricks or other materials within the construction site.

From a technical - physical point of view, the wheelbarrow is a second type of lever.

It generally consists of:

• a central wheel, usually rubberized and two fixed support brackets for parking;

• two rubber handles, which are the extension of the shafts, connected to the wheel axis. The poles constitute the frame of the wheelbarrow, and on them are fixed (or are made by themselves) the supports for the support on the ground;

• a container, called a caisson, suitable for receiving the load. The container rests on the frame and can be made of plastic material or steel sheet, to ensure greater resistance to shocks and pressures.

Depending on its shape, the wheelbarrow takes on various names: French, Dutch, Austrian, German, American, Italian, English, etc. In the event that the wheelbarrow is intended for the transport of light materials, such as dry leaves and garden twigs, the box is larger.

In different dialects the wheelbarrow is also called cart. The unskilled workers assigned to transport with the wheelbarrow are called wheelbarrows.

It is still not clear where and when the wheelbarrow was conceived, but there are several opinions that would place the first appearances of this instrument in Ancient Greece, around 400 BC, which was later also adopted by the Romans; or in China around 100 BC. It is also possible that both cultures had come to develop the tool independently.

Lever classification

Based on the relationship between resisting force and applied force (or power), the levers are divided into:

• disadvantageous: if the applied force required is greater than the resisting force, or if the resistance arm is longer than the arm - power (òpI br <1);

• indifferent: if the applied force required is equal to the resisting force, or if the resistance arm is equal to the arm - power (bp / br = 1);

• advantageous, if the applied force required is less than the resisting force, or if the resistance arm is shorter than the arm - power (bp / b,> 1);

where is it:

bpsta per arm-power

arm-resistance

Based on the mutual position of the fulcrum and the forces, the levers are divided into:

• first kind of levers: the fulcrum is between the two forces; they can be advantageous, disadvantageous or indifferent;

levers of the second kind, the resisting force lies between the fulcrum and the applied force (or power); they are always advantageous;

third-rate levers: the applied force (power) lies between the fulcrum and the resisting force; they are always disadvantageous

Examples of levers

The following table shows some simple examples of levers, indicating the fulcrum, the points of application of the forces, the type of lever.

Lever Fulcrum Resistant force Applied force Type

Scissors Zipper Object to be cut Handle 1

Fixed pulley Central axis Object to be lifted Physical strength 1

Oar Shovel submerged in water Weight of the boat applied to the oarlock Handle 11

Wheelbarrow Wheel axle Weight to be transported Handles II

Nutcracker Pin Walnut Hand II

Human arm Elbow Object held by the hand Arm muscles III

Ice Catcher Pin Ice Cube Hand III

2. BIN-TUB

It is a container, usually made of plastic, for the collection of bulk material in the construction sector with the following characteristics:

thickness of 5 mm,

capacity of 50 dm <3>

truncated cone shape tapered downwards;

section of support on the ground with a net diameter (about 300 mm);

upper hem section (420 mm)

rim and handles protrude from the template

GOAL THAT INNOVATION INTENDS TO ACHIEVE

The Carriotinozza project aims to exploit the functionality of the wheelbarrow and the bin-tub at the same time, allowing them to be moved together.

We want to achieve facilities:

in the handling of loads and heavy materials;

in transport on routes with a constant level, with minimal slope, or on structural or temporary access ramps,

transport safety and ergonomics,

reduction of activities related to the transport and storage of materials,

decrease in the time spent on these activities,

reduction of physical fatigue required of operators.

At present, the bulk building material undergoes a numerous series of successive movements. The material must be transported in bins on trucks, stored on the ground following the overturning of the contents of the bins, picked up according to need and transported by traditional wheelbarrow to the final place of use for the daily work of the operator.

The idea of the project, on the other hand, is the adoption of a decomposable structure that acts as a wheelbarrow but at the same time facilitates the handling of the material, avoiding repetitive and unnecessary passage of the material in different collection means as in use today on construction sites. The bin could be transported by means of the "carriage" directly from the truck to the actual place of use.

This would reduce the time and resources dedicated to the handling and storage of materials, with a significant reduction in the physical effort required of the operator for carrying out these activities. All material handling with shovels or other tools that require the physical intervention of the employee for their use are totally eliminated.

The project is designed to improve the ergonomics of the wheelbarrow and allow the safe carrying out of activities related to the handling of loads and heavy materials, eliminating other sources of risk.

ANALYSIS OF THE RESULT ACHIEVED

The Carriotinozza consists of a tubular and load-bearing metal structure, complete with rubber wheel, support arms, grip handles, and a vice to which the bin-tub is attached.

! arms are equipped with grip handles at one end, and hinges at the point of union with the fork and the wheel axis, which allow them to be opened and closed. By applying a force directed towards the outside on the grip handles of the arms, the opening of the circular vice is determined, allowing the approach to the bin and its insertion inside it. By applying an opposite force, the vice closes around the bin, engaging thanks to a safety, which allows the bin to be hooked in a stable and safe way.

The two parts (metal structure and bin-tub) constitute, thus assembled, a single body, and can be transported jointly by a single person.

For the general and dimensional characteristics of the metal structure, reference is made to the standards on the market for the wheelbarrow, modified so that they are equipped with a vice designed to be compatible with the diameter of the upper rim of the tub-tub, also representing the standard on the market. most used in the construction sector.

In the attached drawings there are the details of the project as assumed.

Claims (1)

CLAIMS The innovation of the so-called project "CARRIOTINOZZA", previously exposed, consists in the union between the wheelbarrow and the tub-can, made by means of the vice, as developed in the attached graphs. We want to protect the intuition that we can jointly exploit the potential of two elements (the wheelbarrow and the tub-tub) to generate advantage in the handling and storage of heavy materials, mainly in construction. By working together a second kind lever, always advantageous, and a container, they reduce one of the most common problems on the construction site and that is the repetitiveness of the operations. Explaining better, we can say that, in the presence of only one operator assigned to the transport of heavy material on site, the operations of: tipping the contents of the bin on the ground; loading the wheelbarrow by means of a shovel; material transport by gripping the wheelbarrow and pushing it; can be replaced by the following: attachment of the bin by means of the circular vice and thanks to the hinges present near the wheel axis; transport of the “CARRIOTINOZZA” by holding it and pushing it as if it were a moth. Thanks to these simplifications, the operator's physical fatigue and therefore his efficiency are reduced, in addition to the psychophysical returns from which the operator himself benefits, with all the obvious consequences.