Constructive disposal applied in mechanical expansion fixer for metal structures or the like

Abstract

“CONSTRUCTIVE DISPOSAL APPLIED IN MECHANICAL EXPANSION FIXER FOR METAL STRUCTURES OR THE LIKE”, which comprises a kit of pieces which form the mechanical expansion fixer (1), it has a hexagonal head (2) and a cylindrical body (3) endowed with full thread (4), has flat washer (5) and a jacket (6) in low-carbon steel; also on the head of the jacket (6) has a hexagonal (7) to ensure that the jacket does not rotate during mounting and tightening, which provides a wide contact area option to use the key that holds the fixer (A and B) in this way, it is not necessary to position it in the hole in a specific way, ensuring agility in the application; cone guided (8) is pre-assembled with the assembly being threaded in the thread base of the fixer (1), there is a unique locking system of guides (9), these guides fit into the openings or slots of jacket (10) and prevent the cone to rotate false in the jacket (6), as the head of the hexagon socket (7) when locked with a fixed key or star prevents this condition, this also applies in situations in which the level of friction between the fixer (1) and the base material is reduced, so there is a strong and rigid fixation between the metallic hollow profiles (11) and the fixer (1).

Claims

1. A fastening system comprising: a screw with a hexagonal head, the screw having a cylindrical body; a thread on the cylindrical body; a washer adjacent the hexagonal head; and a jacket made of low carbon steel surrounding the cylindrical body, the jacket having a proximal end adjacent the hexagonal head and a distal end adjacent a cone, wherein the jacket is heat-treated to increase its resistance, and the jacket has open slots extending from the distal end to pass a member there through; and a cone that is threaded onto the thread, the cone including locking system guides that fit into the distal end of the jacket and protrude through the open slots of the jacket when the hexagonal head is rotated, wherein the jacket includes four open slots to receive four locking system guides extending from the distal end.

2. The fastening system of claim 1 further comprising: a hexagonal head on the jacket, which is adapted to receive a key that holds the fastening system.

3. The fastening system of claim 1, wherein the locking system guides do not extend an entire length of the cone.

Description

(1) To have a clear view of the Constructive Disposition Applied in the Mechanical Expansion Fixer for metal structures or the like, accompanying the illustrative drawings, to which reference is made in order to better elucidate the detailed description that follows, where:

(2) FIG. 1 is side elevation view of the Constructive Disposition Applied in the Mechanical Expansion Fixer or the like for metal structures or the like, showing the components that compose it;

(3) FIG. 2 is a frontal elevation view of the Constructive Disposition Applied in the Mechanical Expansion Fixer or the like for metal structures or the like;

(4) FIG. 3 is a posterior view of the Constructive Disposition Applied in the Mechanical Expansion Fixer for metal structures or the like;

(5) FIG. 4 is a perspective view of the Constructive Disposition Applied in the Mechanical Expansion Fixer for metal or similar structures, showing three different situations of the fixer, the first only the fixer positioned in the bore, the second the use of tools for torque and fixation on the structure and the third fixer already tight in structure; and

(6) FIG. 5 is a perspective view of the Constructive Disposition Applied in Mechanical Expansion Fixer for Metal Structures or the like, showing details of the fixing of two profiles “I” in a square profile structure, and may observe the outside side and cutting of the inner side.

(7) According to the illustrations presented and their details, the Constructive Disposition Applied in the Mechanical Expansion Fixer for metal structures or the like, is characterized by being constituted by a set of pieces which forms the mechanical expansion fixer (1), the same has a head with hexagon socket (2) and a cylindrical body (3) provided with full thread (4) has plain washer (5) and a jacket (6) in low carbon steel, provided with heat treated (hardened/temperate) to increase its resistance, creating an element able to support great efforts of traction and shearing. Even in the head of the jacket (6) there is a hexagonal (7) to ensure that the jacket does not rotate during mounting and tightening, which provides a wide contact area option to use the key which holds the fixer (A and B), therefore, it is not necessary to position it in the hole in a specific way, ensuring flexibility in the application. The cone guided (8) is pre-assembled with the assembly being threaded in the thread base of the fixer (1), there is a unique locking system guides (9), these guides fit into the openings or slots of the jacket (10) and prevent the cone rotate to false in the jacket (6), as the head of the hexagon socket (7) when locked with a fixed key or star prevents this condition, this also applies in situations in which the level of friction between the fixer and the base material is reduced, so there is a strong and rigid fixation between the metallic hollow profiles (11) and the fixer (1).

(8) As we have seen, the Applied Constructive Disposal in the Mechanical Expansion Fixer for Metal Structures and Related, strictly meet all the requirements of mechanical tests related to technical standards, fully complying with the goals, performing in a practical and effective way the functions by which it was designed, providing a series of technical and functional advantages to the users, besides the reliability of a sure and steadfast anchor, containing, therefore, particular characteristics, innovative and equipped with basic requirements of novelty.