Mounting bracket assembly

Abstract

The invention relates to mounting elements for use in construction and household applications and can be used, in particular, for fastening the steps of staircases, while also allowing adjustment of the angle of incline of the steps relative to the horizontal. A mounting bracket assembly consists of a mounting part and a pivoting part, each of which consists of a base and a side wall perpendicular to said base. The bases of said parts are provided with at least one mounting hole. In addition, the side wall of the pivoting part has an arcuate through-groove, and the mounting and pivoting parts are connected by the side walls thereof with the aid of two fastening elements, one of which acts as a pivot pin for the parts, and the other of which is fastened in the side wall of the mounting part such as to be capable of sliding along the arcuate groove in the pivoting part. The arcuate groove has a length that permits the planes of the bases of the parts to be positioned at an angle in a range of 25-90°. The side wall of one of the parts is provided with an additional through-hole. The technical result consists in expanding the existing assortment of accessories capable of providing a wide range of adjustment of the angle of incline of a step and sufficiently secure fastening of the step in the desired position, the proposed mounting bracket assembly having broader functional capabilities in addition to a simple design.

Description

[0001] Mounting Bracket Assembly

[0002] Field of technology to which the invention relates

[0003] The invention relates to assembly elements used in construction and everyday life, and can be used, in particular, for fastening stair steps, while providing the ability to adjust the angle of inclination of the steps relative to the horizon.

[0004] State of the art

[0005] The prior art provides various design solutions for mounting stair steps on a frame (see, for example, CN 205637383 U, published on 12.10.2016, CN 108797914 A, published on 13.11.2018, CN 105756300 A, published on 13.07.2016). These technical solutions provide the ability to adjust the angle of inclination of the stair steps relative to the horizon. However, these technical solutions have common disadvantages, consisting in the complexity of the design, a small range of adjustment of the angle of inclination of the step, and insufficient reliability of fixing the required position of the step.

[0006] The prior art also discloses a mounting bracket assembly that is part of the ladder frame fastening mechanism (see RU 206911 U1, published 30.09.2021). The mounting bracket comprises a supporting leg and a rotating leg connected to each other. Each leg consists of a base and a side wall. The side wall of the rotating leg comprises an arcuate groove. The side parts of the supporting leg and the rotating leg are connected to each other using a bolted connection through through holes in them and the arcuate groove. The axial lines drawn through the ends of the arcuate groove and the center of the through hole in the side wall of the rotating leg form an angle in the range of 55-65°. The required position is fixed by tightening the bolted connection in the arcuate groove. This technical solution is adopted as a prototype.

[0007] The disadvantages of the prototype are the insufficient range of adjustment of the step angle and the insufficient reliability of fixing the required position of the step.

[0008] The technical task of the invention is to overcome the shortcomings of the existing level of technology.

[0009] In solving the technical problem, the invention achieves a technical result consisting in expanding the arsenal of means that allow for a wide range of adjustment of the step inclination angle and sufficient reliability of fixing the required position of the step, the proposed assembly of the mounting bracket has broader functional capabilities with a simple design. Disclosure of the essence of the invention

[0010] The invention is a mounting bracket assembly consisting of a mounting and a pivoting paw, each of which consists of a base and a side wall perpendicular to it, the paw bases contain at least one mounting hole, wherein a through arc-shaped groove is made on the side wall of the pivoting paw, and the mounting and pivoting paws are connected by side walls by means of two fastening elements, one of which is the axis of rotation of the paws, and the second is secured in the side wall of the mounting paw with the possibility of sliding along the arc-shaped groove of the pivoting paw, wherein, according to the invention, the arc-shaped slot is made with a length that allows the planes of the paw bases to be positioned at an angle in the range of 25-90°, and the side wall of one of the paws contains an additional through hole.

[0011] Fasteners may be bolted, screwed, riveted, pinned, studded, or combinations thereof.

[0012] An additional through hole in the side wall of one of the legs can be made with the possibility of drilling a corresponding hole in the side wall of the second leg and arranging an additional fastening element in these holes. In this case, the additional fastening element can be a bolted connection, a screw connection, a riveted connection, a stud, a pin.

[0013] Or an additional through hole in the side wall of one of the legs can be made with the possibility of screwing a self-tapping screw through it into the side surface of the second leg.

[0014] Brief description of accompanying figures

[0015] The essence of the invention can be further explained by non-limiting examples reflected in the accompanying figures 1-3, where: Fig. 1 is a schematic representation of the mounting bracket unit; Fig. 2 is a schematic representation of the pivoting leg; Fig. 3 is non-limiting examples of using the mounting bracket unit with different angles of inclination: a) 25 degrees, b) 45 degrees, c) 60 degrees, d) 90 degrees.

[0016] Implementation of the invention

[0017] The invention is a mounting bracket assembly consisting of a mounting paw "1" and a rotating paw "2". Each paw "1" and "2" consists of a base "3" and a side wall "4" perpendicular to it.

[0018] The bases "3" of the legs "1" and "2" contain at least one mounting hole "5". There may be more than one mounting hole, for example, two, three, four, five or more. The mounting holes "5" may have different shapes, for example, round, square, rectangular, oval or any other, may be located on one or different lines on the plane of the base "3", in rows or in any other way.

[0019] On the side wall “4” of the rotary paw “2” there is a through arc-shaped groove “6”.

[0020] The mounting "1" and the rotating "2" legs are connected by side walls "4" by means of two fastening elements "7" and "8", one of which (7) is fixed in the openings "10" of the legs "1" and "2", is their axis of rotation relative to each other, and the second (8) is fixed in the side wall "4" of the mounting leg "1" with the possibility of sliding along the arcuate groove "6" of the rotating leg "2". In the context of the invention, the fastening elements "7" and "8" can be a bolted connection, a screw connection, a riveted connection, studs, pins or combinations thereof, for example, the fastening element "7" is a riveted connection, and the element "8" is a pin, or any other possible combination of the listed elements.

[0021] The arc-shaped slot "6" is made with a length that allows the planes of the bases "3" of the legs "1" and "2" to be positioned at an angle in the range of 25-90°. It is this length of the slot "6" that allows for a wide range of adjustment of the angle of the step fixed to the plane of the base "3" of the rotary leg "2". An angle of less than 25° is impractical due to the small angle to the horizon, and more than 90° is impractical, since the stringer to which the mounting leg is fixed will be overturned.

[0022] The side wall "4" of one of the legs (1 or 2) contains an additional through hole "9". This hole in one of the legs allows for sufficient reliability of fixation of the required step position during installation. This is done as follows. When the angle of the planes of the bases "3" of legs "1" and "2" is not in the extreme positions, then additional fixation of legs "1" and "2" relative to each other is required. In this case, after setting to the required angle through the through hole "9" made in the side wall "4" of one of the legs "1" or "2", a corresponding hole is drilled in the side wall "4" of the second leg "2" or "1", respectively, and an additional fastening element is placed in these holes. A bolted connection, a screw connection, a riveted connection, a stud, a pin, etc. can also be used as an additional fastening element.The paws can be made of any material that provides the required characteristics, for example, steel, aluminum or other alloys.

[0023] A non-limiting example of using the invention is given below. The supporting frame of the ladder had at least two mounting brackets arranged in pairs in mirror image to each other (right and left). The mounting brackets had supporting and rotating legs connected to each other, each of which consisted of a base and a side wall, made with the possibility of rotation relative to the horizontal axis of the bracket.

[0024] The base of the mounting bracket's pivoting paw, equipped with an eye no less than 20+2 mm long, directed away from the stringer, was connected to the supporting frame with a bolted connection.

[0025] The through hole in the side wall of the supporting paw was fastened coaxially to the arc-shaped slot of the pivoting paw during installation of the mounting brackets using a bolt, nut, lock washer and washer. The supporting and pivoting paws were additionally connected using a fixing element passing through the through holes of the pivoting paws and the through holes of the supporting paws. According to one version, an additional through hole in the pivoting paws was formed during installation of the ladder using self-tapping screws passing through the additional through holes of the supporting paw. In another version, an additional through hole was drilled in the pivoting paw through the hole in the supporting paw, and then cotter pins were installed in these through holes with tension. The through hole in the side wall of the supporting paw was fastened coaxially to the through hole of the pivoting paw using a bolt and nut, providing an axis of mutual rotation of the paws relative to each other.

[0026] To install the bases of the steps parallel to the horizon for flights of stairs with different angles of inclination from 25 to 90 degrees relative to the horizon, we used rotary feet with C-shaped side walls and a height of 84+2 mm.

[0027] The mounting brackets of the stair treads were installed on the supporting frame using quick-mount bolts and nuts. After adjustment and tightening the bolt with a force of 40 N, the mounting brackets provided a maximum recommended lateral load of 2000-3000 N per mounting point on the stair tread.

[0028] This design of the mounting bracket assembly allows to overcome the shortcomings of the existing level of technology, to expand the arsenal of means providing a wide range of adjustment of the step inclination angle and sufficient reliability of fixing the required position of the step (additional point of fixing the required position), the proposed mounting bracket assembly has broader functional capabilities with a simple design.

[0029] A search of publicly available sources of information showed that the entire set of features of the proposed invention is not known or clearly evident from the state of the art, and therefore the invention meets the patentability conditions of “novelty” and “inventive step”.

[0030] The claimed invention consists of materials and elements that are standard for this field of technology and are interconnected in a certain way, i.e. it can be used in industry, which is why the invention meets the patentability requirement of “industrial applicability”.

[0031] It should be understood that after a specialist has reviewed the above description with an example of the implementation of the proposed invention, other changes, modifications and implementation options of the invention will become obvious to him. Thus, all such changes, modifications and implementation options, as well as other areas of application that do not differ from the essence of the present invention, should be considered protected by the present invention within the scope of the attached formula.

Claims

Invention formula 1. A mounting bracket assembly consisting of a mounting paw and a pivot paw, each of which consists of a base and a side wall perpendicular to it, the paw bases contain at least one mounting hole, wherein a through arc-shaped groove is made on the side wall of the pivot paw, and the mounting and pivot paws are connected by side walls by means of two fastening elements, one of which is the axis of rotation of the paws, and the second is secured in the side wall of the mounting paw with the possibility of sliding along the arc-shaped groove of the pivot paw, characterized in that the arc-shaped slot is made with a length that allows the planes of the paw bases to be positioned at an angle in the range of 25-90°, and the side wall of one of the paws contains an additional through hole.

2. The mounting bracket assembly according to claim 1, characterized in that the fastening elements are a bolted connection, a screwed connection, a riveted connection, studs, pins, or combinations thereof.

3. A mounting bracket assembly according to any one of paragraphs 1 or 2, characterized in that the additional through hole in the side wall of one of the legs is designed with the possibility of drilling a corresponding hole in the side wall of the second leg and arranging an additional fastening element in these holes.

4. A mounting bracket assembly according to paragraph 3, characterized in that the additional fastening element is a bolted connection, a screw connection, a riveted connection, a stud, or a pin.

5. A mounting bracket assembly according to any one of claims 1 or 2, characterized in that an additional through hole in the side wall of one of the legs is made with the possibility of screwing a self-tapping screw through it into the side surface of the second leg.

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