BR202016022166U2 - HAND CART ARRANGEMENT - Google Patents

Abstract

wheelbarrow arrangement. A first constructive option of the wheelbarrow comprises a bucket (1) mounted on a chassis (2) and a wheel (3). the chassis (2) is composed of two side branches which are frontally interconnected by a resting support (21) and intermediate by a wheel support (32). At the rear end of the chassis (2) there is a handrail (22) that is mounted on the chassis arm (23). Between the hopper (1) and the hand rest (22) is positioned the wheel (3) which is housed on an axle (31) mounted on the wheel support (32). A second constructional option of the trolley comprises a bucket (1) mounted on a chassis (2) and a wheel (3). The chassis (2) consists of two side branches, each with a resting support (21) and a wheel support (32 ') where one end of the wheel axle (31) is mounted. the two side branches of the chassis (2) are interconnected by a front crossmember (25) and an intermediate crossmember (26). A third constructive option of the wheelbarrow comprises a bucket (1) mounted on a chassis (2) and a wheel (3). the chassis (2) is formed by two side branches which are integrated with a resting support (21) and provided with a wheel support (32 ") where one end of the wheel axle (31) is mounted. The chassis sides (2) are interconnected by a front crossmember (25) and an intermediate crossmember (26).

Description

(54) Title: DISPOSITION IN HAND CART (51) Int. Cl .: B62B 1/02 (52) CPC: B62B 1/02 (73) Holder (s): CARLOS AUGUSTO SALGADO DE CASTRO.

(72) Inventor (s): CARLOS AUGUSTO SALGADO DE CASTRO (74) Attorney (s): CUSTODIO DE ALMEIDA & CIA.

(57) Summary: DISPOSAL IN HAND-CART. A first constructive option for the wheelbarrow comprises a bucket (1) mounted on a chassis (2) and a wheel (3). The chassis (2) consists of two side branches that are interconnected frontally by a resting support (21) and intermediate by a wheel support (32). At the rear end of the chassis (2) there is a handrest (22) that is mounted on the chassis arm (23). Between the bucket (1) and the hand rest (22) the wheel (3) is positioned, which is located on an axle (31) mounted on the wheel support (32). A second constructive option for the cart comprises a bucket (1) mounted on a chassis (2) and a wheel (3). The chassis (2) consists of two side branches, each with a resting support (21) and a wheel support (32 ') where one end of the wheel axle (31) is mounted. The two side branches of the chassis (2) are interconnected by a front crosspiece (25) and an intermediate crosspiece (26). A third constructive option for the wheelbarrow comprises a bucket (1) mounted on a chassis (2) and a wheel (3). The chassis (2) is formed by two lateral branches that are integrated with a (...) ^X is' / lL ^ ³² / d juL · - ³¹ .

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1/4 “HAND-TROLLED ARRANGEMENT”

INTRODUCTION [001] The present utility model refers to an innovative constructive arrangement introduced in a wheelbarrow for the transportation of cargo.

STATE OF THE TECHNIQUE [002] The wheelbarrow is an ancient equipment, developed by very remote civilizations, such as Egyptians, Greeks and Chinese, for the transport of loads and materials, during wars and constructions. However, for millennia of existence, this tool has undergone changes in design and manufacturing materials, but has not changed in the functional mechanism.

[003] The functional mechanism of most wheelbarrows is based on the concept of the second degree lever (resistant), where the load (resistant force) is arranged between the wheel axle and the handle (point of application of the powerful force) ). In this case, to move the cart, it is necessary to apply a powerful upward force, that is, lifting the cable.

[004] Patent document BR 20 2014 0139007 U2 describes an arrangement applied in a wheelbarrow with open bucket and a wheel, whose axis is located under and centrally on the bucket, so that the load is fully supported on the wheel. However, to move the cart the user must suspend the cable, configuring the mechanism also with a second order lever, as it is necessary to make a powerful upward force to lift the load and move the cart.

UTILITY MODEL SOLUTION [005] The present utility model stands out for its functional mechanism, which is based on the concept of the first degree lever (interfix) where the wheel axle (lever support) is

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2/4 positioned between the bucket (point of application of the load or resistant force) and the handles (point of application of the powerful force), reversing the dynamics of use of the equipment. This new constructive arrangement introduced in a wheelbarrow results in less force applied to transport loads, greater stability in movement, better maneuvering performance and optimization of ergonomics, for greater comfort, well-being and care for the health of the user.

[006] To move the cart, the user must apply a powerful downward force to the cart cable to lift the load. When lifting the load and moving the cart, the user uses his own weight, considerably minimizing the efforts applied, providing a natural balance of counterweight and a rotational balance at the point of support of the lever (wheel axis), ensuring that the cart is displaced with less applied effort and better dynamic performance.

[007] This mechanism reduces the user's fatigue, preserves the user from efforts submitted directly to the spine and increasing their work performance. The application of the first-order lever (see-saw) combined with the support point (wheel axle) that allows for two-way rotational kinetics, at the center of the circumference and at the tangent of the tire, makes the wheelbarrow perform well maneuvering in small spaces, and at the same time, it provides an excellent balance inertia due to the counterweight that the lever generates, offering greater stability, safety and comfort to the user.

ADVANTAGES OF THE UTILITY MODEL [008] The innovative constructive arrangement applied in the wheelbarrow of this utility model results in the following functional improvements of use in relation to the state of the art:

• reduction of the application of force necessary to transport

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3/4 loads;

· Greater stability when traveling;

· Better balance;

· Better dynamic performance;

· Better maneuvering performance, especially in small spaces;

· Better user ergonomics.

DESCRIPTION OF THE UTILITY MODEL [009] The innovative constructive arrangement introduced in the wheelbarrow of this utility model is now described in detail based on the attached drawings, listed below: Figure 1 - Front view of a first construction option for the trolley hand;

Figure 2 - perspective of the cart chassis with the bucket detached; Figure 3 - top view of the wheelbarrow;

Figure 4 - bottom view of the wheelbarrow;

Figure 5 - front view of the wheelbarrow;

Figure 6 - rear view of the wheelbarrow;

Figure 7 - right side view of the wheelbarrow;

Figure 8 - exploded perspective of the wheelbarrow;

Figure 9 - frontal perspective of a second constructive option of the wheelbarrow;

Figure 10 - frontal perspective of a third constructive option of the wheelbarrow.

[010] Figures 1 to 8 illustrate a first constructive option of the wheelbarrow comprising a bucket (1) mounted on a chassis (2) and a wheel (3). The chassis (2) consists of two side branches that are interconnected frontally by a resting support (21) and intermediate by a wheel support (32). At the rear end of the chassis (2) there is a handrest (22) that is

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It is mounted on the chassis arm (23). Between the bucket (1) and the handrest (22) the wheel (3) is positioned, which is located on an axle (31) mounted on the wheel support (32). Each of the chassis branches (2) has a coupling (2Α) that connects to corresponding couplings (11) provided on the bottom surface of the bucket bottom (1). The wheel assembly (3) comprises the axle (31), the support (32) and the scroll spacer (33).

[011] Figure 9 illustrates a second constructive option for the wheelbarrow that also comprises a bucket (1) mounted on a chassis (2) and a wheel (3). The chassis (2) consists of two side branches, each with a resting support (21) and a wheel support (32 ') where one end of the wheel axle (31) is mounted. The two side branches of the chassis (2) are interconnected by a front crosspiece (25) and an intermediate crosspiece (26).

[012] Figure 10 illustrates a third constructive option of the wheelbarrow that also comprises a bucket (1) mounted on a chassis (2) and a wheel (3). The chassis (2) is formed by two lateral branches that are integrated with a resting support (21) and provided with a wheel support (32) where one end of the wheel axle (31) is mounted. The two side branches of the chassis (2) are interconnected by a front crosspiece (25) and an intermediate crosspiece (26).

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Claims (3)

1 - “HAND-TROLLED ARRANGEMENT” comprising a wheel (3), a bucket (1) mounted on a chassis (2) provided with a handrest (22) on the rear arm (23), characterized by having the chassis (2) frontly a resting support (21) and because the wheel (3) is positioned between the bucket (1) and the hand support (22) of the rear arm (23). 2 - "HAND TRUCK ARRANGEMENT", according to claim 1, characterized in that the chassis (2) is optionally formed by two lateral branches that are interconnected frontally by the resting support (21) and intermediate by the wheel support (32) where the axle (31) of the wheel (3) is mounted. 3 - "HAND TRUCK ARRANGEMENT", according to claim 1, characterized in that the chassis (2) is optionally formed by two side branches that are interconnected by a front crosspiece (25) and an intermediate crosspiece (26) , each of the lateral branches of the chassis (2) being integrated by a support (32 'and 32) where one of the ends of the wheel axle (31) is mounted. 14/21 1/5