CONSTRUCTIONAL ARRANGEMENT APPLIED TO A RELEASE ARM FOR OVERHEAD DOORS

Description

1 / 7 CONSTRUCTIONAL ARRANGEMENT APPLIED TO A RELEASE ARM FOR OVERHEAD DOORS MODEL FIELD

[001] This utility model application relates to a constructive arrangement applied to a release arm for overhead doors, particularly aimed at the sector of mechanics applied to automation and manual control of doors and, more specifically, to the field of components intended for the manual release of overhead door leaves. PROBLEM TO BE SOLVED

[002] In the state of the art, there is a need for a constructive solution applied to the unlocking arm for overhead doors that is able to maintain the mechanical strength of the unlocking arm, while at the same time enabling the reduction of production cost, the weight of the final part and the manufacturing time.

[003] It is also noted that the need for subsequent zinc plating is a factor that directly impacts the production process, increasing production time and operating costs associated with the manufacture of the release arm.

[004] Furthermore, the existence of zones of mechanical fragility in the release arm highlights the need for a constructive configuration capable of preserving the mechanical resistance of the assembly, without neglecting the simultaneous pursuit of weight, cost and manufacturing time reduction. CURRENT STATE OF THE ART

[005] The document BR 102021026006-8, published on 04 / 07 / 2023, entitled “Articulated arm for tilting gates”, is known from the current state of the art, which discloses an articulated arm applied to the movement of tilting gates, comprising, in association, an angle bracket, a continuous central rod, a sliding lock and a wing nut, replacing conventional elements of the drive assembly.

[006] Also known from the current state of the art is document BR 2020130286562, published on 10 / 27 / 2015, entitled “Improvement introduced in arm Petition 870260032181, dated 07 / 04 / 2026, page 5 / 23 2 / 7 tilting gate traction arm”, which discloses a traction arm intended for coupling the tilting gate to the electric drive mechanism, featuring a constructive configuration in which the drilling of the front end of the movable arm is provided by the fitting of an articulated clip, capable of facilitating the uncoupling of the assembly.

[007] Also known from the current state of the art is document BR 202014017718-9, granted on 12 / 12 / 2017, entitled “Actuating arm for automatic gates”, which discloses an actuating arm applicable to gate automation systems, comprising an elongated metallic body, shaped near one of its ends by an angular bend, and provided, at the opposite end, with a notch configured for cooperation with an actuating nut insert, allowing locking and unlocking operations.

[008] Also known from the current state of the art is document BR 202020002520-7, published on 08 / 17 / 2021, entitled “Constructive arrangement in articulated arm for tilting gate”, which discloses an articulated arm installed on a tilting gate, equipped with a first articulated element and a second articulated element connected by an articulation pin, also comprising a position adjustment plate capable of defining the relative position of the articulation between said elements. OF THE MODEL IN RELATION TO THE STATE OF THE ART

[009] The present model, when compared to prior art documents, stands out by presenting a new constructive arrangement applied to a release arm for overhead doors, in which the angle bracket, the central rod, and the sliding lock receive specific and complementary conformations, with particular relevance to the application of bending flanges and mechanical grooves in the regions subject to bending, which leads to increased structural and mechanical resistance of the release arm and increased rigidity of the assembly, while enabling a reduction in weight, cost, and manufacturing time, maintaining dimensional and functional compatibility with conventional models and preserving interchangeability. OBJECTIVES OF THE MODEL Petition 870260032181, dated 07 / 04 / 2026, page 6 / 23 3 / 7

[010] The objective of the present model is to provide a constructive arrangement applied to a release arm for overhead doors, configured to present structural and functional improvements aimed at reducing the cost, weight and manufacturing time of the assembly.

[011] The aim of the present model is to provide a release arm comprising a central rod, a sliding lock and an angle bracket, shaped in such a way as to define a continuous structural arrangement, mechanically resistant and dimensionally compatible with conventional models.

[012] The aim of the present model is to provide a release arm made of galvanized sheet metal with reduced thickness, eliminating the need for subsequent zinc plating and maintaining the structural and mechanical strength of the assembly.

[013] The aim of the present model is to provide a constructive configuration in which the angle bracket comprises orthogonal flanges provided with peripheral bending flanges with a central semicircular cutout, the central rod comprises a straight terminal fixing portion, an angled transition segment, a longitudinal body with a substantially rectangular cross-section, lateral longitudinal bending flanges and mechanical grooves, and the sliding lock comprises terminal uprights, a curvilinear lateral cutout, a longitudinal body with a “U” cross-section and a lower longitudinal flange.

[014] The aim of the present model is to provide a constructive arrangement in which bending flanges and mechanical grooves are applied in the regions subject to bending, in order to increase the structural and mechanical resistance of the release arm and ensure rigidity to the assembly.

[015] The aim of this model is to maintain the dimensional and functional compatibility of the release arm with conventional structures, preserving interchangeability. SOLUTION PROPOSED BY THE MODEL

[016] The solution proposed by the present model consists of a constructive arrangement applied to a release arm for overhead doors, essentially formed by a central rod, a sliding lock and an angle bracket, shaped in such a way as to Petition 870260032181, dated 07 / 04 / 2026, page 7 / 23 4 / 7 Define a continuous structural arrangement, mechanically resistant and dimensionally and functionally compatible with conventional structures, the assembly being made of thin galvanized sheet metal, without the need for subsequent zinc plating, comprising, in the angle bracket, orthogonal flanges with fixing holes and peripheral bending flanges provided with a central semicircular cutout, in the central rod, a straight terminal fixing portion, an angled transition segment, a longitudinal body with a substantially rectangular cross-section, lateral longitudinal bending flanges and mechanical grooves, and, in the sliding lock, terminal uprights, a curvilinear lateral cutout, a longitudinal body with a “U” shaped cross-section and a lower longitudinal flange, so that the bending flanges and mechanical grooves act in the regions subject to bending, increasing the structural and mechanical resistance of the unlocking arm and ensuring rigidity to the assembly, with weight reduction.cost and manufacturing time, without prejudice to interchangeability. ADVANTAGES OF THE MODEL

[017] The present model includes the following advantages: • Reduced manufacturing costs due to the use of thinner galvanized sheet metal; • Weight reduction of the assembly, without compromising the structural conformation of the unlocking arm; • Reduced manufacturing time due to simplified assembly construction; • Elimination of the need for subsequent galvanizing, due to the use of galvanized sheet metal; • Increased structural and mechanical strength of the release arm; • Increased rigidity of the assembly, due to the application of bending flanges and mechanical grooves in the regions subject to bending; • Maintaining dimensional and functional compatibility with conventional models; • preservation of interchangeability with conventional structures; Petition 870260032181, dated 07 / 04 / 2026, page 8 / 23 5 / 7 • Continuous and structurally stable conformation between angle bracket, central rod and sliding lock; • Functional and structural improvement of the assembly, without prejudice to the application of the release arm in conventional overhead doors. DESCRIPTION OF THE FIGURES [ 018] The following figures are presented to better explain the patent application in an illustrative and non-limiting manner: Fig. 1: shows a perspective view of the release arm for overhead doors, according to the present model; Fig. 2: shows an inverted perspective view of the release arm for overhead doors, according to the present model; Fig. 3: shows an exploded perspective view of the release arm for overhead doors, according to the present model; Fig. 4: shows a perspective view of the angle bracket, according to the present model; Fig. 5: shows a perspective view of the central rod, according to the present model; Fig. 6: shows a perspective view of the sliding latch, according to the present model; Fig. 7: shows a schematic view, illustrating the comparison of strength and deformation between the rod of the current state of the art and the rod of the present model. DETAILED DESCRIPTION OF THE MODEL

[019] The CONSTRUCTIONAL ARRANGEMENT APPLIED TO A UNLOCKING ARM FOR OVERHEAD GATES refers to an unlocking arm (1) belonging to the field of mechanics applied to the automation and manual control of gates, specifically to components intended for the manual unlocking of overhead gate leaves, presenting structural and functional improvements aimed at reducing cost, weight and manufacturing time, without prejudice to dimensional and functional compatibility with conventional models, maintaining interchangeability.

[020] The release arm (1) essentially comprises a central rod (2), a sliding lock (3) and an angle bracket (4), preferably made of Petition 870260032181, dated 07 / 04 / 2026, page 9 / 23 6 / 7 in galvanized sheet metal with a reduced thickness of 2.7 mm, replacing the greater thicknesses conventionally used, eliminating the need for subsequent galvanizing.

[021] The angle bracket (4) is disposed at one end of the release arm (1), being formed by a first orthogonal flange (5) and a second orthogonal flange (6), joined together by a central angular line (7), said first orthogonal flange (5) and said second orthogonal flange (6) being provided with fixing holes (8). The upper and lower edges of the angle bracket (4) comprise peripheral bending flanges (9), provided along the corresponding margins of the first orthogonal flange (5) and the second orthogonal flange (6), each peripheral bending flange (9) being provided, in its median region, with a central semicircular cutout (10).

[022] The central rod (2) extends from the angle bracket (4), comprising, at a first end, a straight terminal fixing portion (11), provided with at least one through fixing hole (12) corresponding to the respective fixing holes (8) of the angle bracket (4), said straight terminal fixing portion (11) being extended by an angled transition segment (13), which gives geometric deviation to the longitudinal development of the central rod (2).

[023] The angled transition segment (13) includes, in its bending regions, a recessed mechanical crease (14) and a raised mechanical crease (15), which in turn connects to a longitudinal body with a substantially rectangular cross-section (16), which extends to the opposite end of the central rod (2), being provided, at said opposite end, with a curvilinear side cutout (17) and fixing holes (18).The straight terminal fixing portion (11), the angled transition segment (13) and the longitudinal body with a substantially rectangular cross-section (16) are formed by an upper lateral longitudinal bend flange (19) and a lower lateral longitudinal bend flange (20), arranged along opposite margins of the central rod (2), wherein the lower lateral longitudinal bend flange (20) terminates in the region of the curved lateral cutout (17), while the upper lateral longitudinal bend flange (19) terminates before the fixing holes (18) at the opposite end. Petition 870260032181, dated 07 / 04 / 2026, p. 10 / 23 7 / 7

[024] The sliding lock (3) is disposed at the opposite end of the central rod (2), comprising a first end mount (21), provided with a first through hole (22). Said first end mount (21) continues into a curved side cutout (23), disposed in alignment with the curved side cutout (17) of the central rod (2), followed by a second end mount (24), provided with a second through hole (25) in alignment with the respective fixing holes (18) of the central rod (2).

[025] Starting from said second terminal upright (24), the sliding lock (3) extends through a longitudinal body with a “U” cross-section (26), further comprising a lower longitudinal flange (27), projecting along the lower extension of said longitudinal body with a “U” cross-section (26), said longitudinal body with a “U” cross-section (26) being terminated by a rounded front end (28).

[026] The peripheral bending flanges (9) of the angle bracket (4), as well as the upper lateral longitudinal bending flange (19), the lower lateral longitudinal bending flange (20), the recessed mechanical groove (14) and the protruding mechanical groove (15) of the central rod (2), are applied longitudinally and in the regions subject to bending, increasing the structural and mechanical resistance of the release arm (1) and ensuring rigidity to the assembly, even with the use of the thin galvanized sheet.

[027] The joint configuration of the angle bracket (4), the central rod (2) and the sliding lock (3) defines a continuous structural arrangement that is dimensionally and functionally compatible with conventional unlocking arm (1) models for overhead doors, maintaining interchangeability and providing a reduction in weight, cost and manufacturing time of the assembly. Petition 870260032181, dated 07 / 04 / 2026, page 11 / 23

Claims

1 / 2 CLAIM 1) CONSTRUCTIONAL ARRANGEMENT APPLIED TO A UNLOCKING ARM FOR OVERHEAD DOORS, refers to an unlocking arm (1) comprising a central rod (2), a sliding lock (3) and an angle bracket (4), characterized in that the angle bracket (4) is formed by a first orthogonal flange (5) and a second orthogonal flange (6), joined together by a central angular line (7), said first orthogonal flange (5) and said second orthogonal flange (6) being provided with fixing holes (8), and comprising, on their upper and lower edges, peripheral bending flanges (9), each peripheral bending flange (9) being provided, in its median region, with a central semicircular cutout (10); the central rod (2) comprising at one end a straight terminal fixing portion (11), provided with at least one through fixing hole (12), said straight terminal fixing portion (11) being extended by an angled transition segment (13),which includes, in its bending regions, a recessed mechanical crease (14) and a raised mechanical crease (15), which in turn connect to a longitudinal body of substantially rectangular cross-section (16), which extends to the opposite end of the central rod (2), being provided, at said opposite end, with a curvilinear lateral cutout (17) and fixing holes (18), said rectilinear terminal fixing portion (11), said angled transition segment (13) and said longitudinal body of substantially rectangular cross-section (16) being formed by an upper lateral longitudinal bending flange (19) and a lower lateral longitudinal bending flange (20), the lower lateral longitudinal bending flange (20) terminating in the region of the curvilinear lateral cutout (17), while the upper lateral longitudinal bending flange (19) terminates before the fixing holes (18) of the opposite end; and,by the sliding lock (3) comprising a first end mount (21), provided with a first through hole (22), proceeding to a curvilinear side cutout (23), followed by a second end mount (24), provided with a second through hole (25), extending, from said second end mount (24), by a longitudinal body with a “U” cross-section (26), Petition 870260032181, of 07 / 04 / 2026, page 12 / 23, 2 / 2 further comprising a lower longitudinal flange (27), projecting along the lower extent of said longitudinal body with “U” cross-section (26), said longitudinal body with “U” cross-section (26) being terminated by a rounded front end (28). Petition 870260032181, dated 07 / 04 / 2026, page 13 / 23

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