Mounting bracket assembly

Abstract

The present invention relates to a mounting device for use in architecture and homes, particularly for securing stair treads while simultaneously adjusting the inclination angle of the stair tread relative to the horizontal. The mounting bracket assembly comprises a mounting support and a pivoting support, each of which comprises a base and a sidewall perpendicular to the base. The base of each of the mounting support and the pivoting support has at least one mounting hole. The sidewall of the pivoting support has an arc-shaped through-slot, and the mounting support and the pivoting support are connected to the sidewalls by two fasteners. One of the two fasteners serves as the axis of rotation for the mounting support and the pivoting support, while the other is fixed to the sidewall of the mounting support and slides along the arc-shaped through-slot of the pivoting support. The arc-shaped through-slot has a length such that the base planes of the mounting support and the pivoting support can be positioned at angles ranging from 25 degrees to 90 degrees. One of the sidewalls of the mounting support and the pivoting support has an additional through-slot. The technical effect is to expand the scope of application of the means for allowing a wide range of adjustment of the angle of the stair tread, and to ensure that the stair tread can be fixed securely at a desired position. In addition, the proposed mounting bracket assembly is simple in structure yet more versatile. (Dependent Claim: 4, Drawing: 6)

Description

Technical Field

[0001] The present invention relates to a fixture used in construction and households, in particular, which can be used to fix stair treads, and at the same time, can adjust the inclination angle of the tread relative to the horizontal level.

Background Art

[0002] The prior art discloses various design solutions for mounting stair treads to a frame (for example, refer to Patent Document 1 published on October 12, 2016, Patent Document 2 published on November 13, 2018, and Patent Document 3 published on July 13, 2016). These technical solutions enable the adjustment of the inclination angle of the stair tread relative to the horizontal level. However, these technical solutions have common drawbacks such as complex design, small adjustment range of the inclination angle of the stair tread, and insufficient reliability for fixing the stair tread at the required position.

[0003] The prior art also discloses a mounting bracket assembly as part of a stair frame mounting mechanism (refer to Patent Document 4 published on September 30, 2021). This mounting bracket includes a bearing support part and a rotating support part connected to each other, and each support part consists of a base part and a side wall. The side wall of the rotating support part is provided with an arc-shaped slot, and the side surfaces of the bearing support part and the rotating support part are coupled by bolt fastening using the through holes and the arc-shaped slot provided thereon. The angle formed by the axis passing through the end of the arc-shaped slot and the center of the through hole on the side wall of the rotating support part is in the range of 55 degrees to 65 degrees. Fixing at a predetermined position is achieved by tightening the bolt fastening in the arc-shaped slot. This technical solution has been adopted as a prototype.

[0004] The drawbacks of this prototype are that the adjustment range of the angle of the stair tread is insufficient, and the reliability for fixing the stair tread at the required position is insufficient.

Prior Art Documents

Patent Documents

[0005] [Patent Document 1] China Utility Model No. 205637383 Specification [Patent Document 2] Chinese Patent Application Publication No. 108797914 Specification [Patent Document 3] Chinese Patent Application Publication No. 105756300 Specification [Patent Document 4] Russian Utility Model Specification No. 206911 [Overview of the project] [Problems that the invention aims to solve]

[0006] The technical objective of this invention is to overcome the shortcomings of the prior art.

[0007] By addressing these technical objectives, the present invention achieves the technical effect of expanding the range of application of means for widely adjusting the angle of stair treads and enabling the stair treads to be sufficiently and securely fixed in the desired position. Furthermore, the proposed mounting bracket assembly is simple in structure yet more multifunctional. [Means for solving the problem]

[0008] The present invention provides a mounting bracket assembly comprising a mounting support and a rotating support. The mounting support and the rotating support each consist of a base and a side wall perpendicular thereto, the base of each mounting support and rotating support having at least one mounting hole, the side wall of the rotating support having an arc-shaped through slot, the side walls of the mounting support and the rotating support being connected by two fasteners, one of which serves as the axis of rotation of the mounting support and the rotating support, and the other which is fixed to the side wall of the mounting support and slides along the arc-shaped through slot of the rotating support, the arc-shaped through slot having a length such that the base planes of each mounting support and the rotating support can be positioned at an angle in the range of 25 to 90 degrees, and one of the side walls of the mounting support and the rotating support has an additional through hole.

[0009] Fasteners can be bolts, screws, rivets, studs, pins, or a combination thereof.

[0010] An additional through-hole is formed in the side wall of one of the mounting support and the rotating support, and a corresponding hole is drilled in the side wall of the other support, allowing additional fasteners to be placed in these holes.

[0011] Additional fasteners may be bolts, screws, rivets, studs, or pins.

[0012] Furthermore, an additional through-hole may be formed in the side wall of one of the mounting support or the rotating support, allowing a self-tapping screw to be screwed into the side wall of the other support through that through-hole. [Brief explanation of the drawing]

[0013] The gist of the present invention is further clarified by the non-limiting embodiments shown in the attached Figures 1 to 3.

[0014] [Figure 1] Figure 1 is a schematic diagram of the mounting bracket assembly. [Figure 2] Figure 2 is a schematic diagram of the rotating support. [Figure 3a] Figure 3a shows a non-limiting example of the case where the mounting bracket is used at a different inclination angle of 25 degrees. [Figure 3b] Figure 3b shows a non-limiting example of the case where the mounting bracket is used at a different inclination angle of 45 degrees. [Figure 3c] Figure 3c shows a non-limiting example of the case where the mounting bracket is used at a different inclination angle of 60 degrees. [Figure 3d] Figure 3d shows a non-limiting example of the case where the mounting bracket is used at a different inclination angle of 90 degrees. [Mode for Carrying Out the Invention]

[0015] The present invention provides a mounting bracket assembly consisting of a mounting support 1 and a rotating support 2. Each of the supports 1 and 2 is composed of a base portion 3 and a side wall 4 perpendicular thereto.

[0016] The base portion 3 of each of the supports 1 and 2 includes at least one mounting hole 5. There may be a plurality of mounting holes, such as 2, 3, 4, 5, or more. The mounting holes 5 may have different shapes such as circular, square, rectangular, elliptical, or other shapes, and may be arranged on the plane of the base portion 3 on the same line or different lines, in rows, or in other manners.

[0017] An arc-shaped through slot 6 is formed in the side wall 4 of the rotating support 2.

[0018] The mounting support 1 and the pivoting support 2 are connected by their side walls 4 via two fasteners 7 and 8, one (7) of which is fixed in the holes 10 of the supports 1 and 2 and serves as their axis of rotation relative to each other, and the other (8) is fixed to the side wall 4 of the mounting support 1 so as to slide along the arcuate slot 6 of the pivoting support 2. In the context of the present invention, fasteners 7 and 8 may be bolted connections, screw connections, studs, pins, or combinations thereof, for example, fastener 7 is a screw connection, element 8 is a pin, or any other possible combination thereof.

[0019] The arcuate through slot 6 is formed to a length that allows the plane of the base portion 3 of the supports 1 and 2 to be positioned at an angle in the range of 25 degrees to 90 degrees. With the through slot 6 having such a length, a wide adjustment range can be ensured for the angle of the stair tread that is secured on the plane of the base portion 3 of the pivoting support 2. If the angle is less than 25 degrees, it is not practical because the angle relative to the horizontal becomes too small, and if the angle exceeds 90 degrees, it is not practical because the stringer to which the mounting support is fixed will tip over.

[0020] The side wall 4 of one of the supports (1 or 2) is further provided with a through hole 9. During installation, this hole provided in one of the supports can ensure sufficient reliability for fixing the stair tread at the required position. This is achieved as follows. When the angle between the planes of the base portions 3 of the supports 1 and 2 is not at the end position, the supports 1 and 2 require additional fixation relative to each other. In that case, after the desired angle is set using the through hole 9 formed in the side wall 4 of one of the supports 1 or 2, corresponding holes are drilled in the side wall 4 of the other support 2 or 1, respectively, and additional fasteners are arranged in these holes. Bolted connections, screw connections, studs, pins and the like can be used as the additional fasteners. The support may be formed of any material that provides the required properties, such as steel, aluminum, and other alloys.

[0021] Non-limiting examples of using the present invention are shown below.

[0022] The load-bearing frame of the staircase was equipped with at least two mounting brackets, which were arranged in pairs symmetrically with respect to each other. Each mounting bracket comprised a load-bearing support and a pivot support connected to each other, and each support consisted of a base and side walls and was formed to rotate relative to the horizontal axis of the bracket.

[0023] The base of the pivot support portion of the mounting bracket is provided with an eye at least 20+2 mm in length, oriented away from the stringer, and this base is attached to the load-bearing frame using bolt fastenings.

[0024] Through-holes in the side walls of the load-bearing support were coaxially secured to the arc-shaped through-slots of the pivot support when attaching the bracket using bolts, screws, lock washers, and flat washers. The load-bearing support and the pivot support were further connected by fasteners passed through their respective through-holes. In one embodiment, during the stair installation process, additional through-holes were created in the pivot support using self-tapping screws through additional through-holes in the load-bearing support. In another embodiment, additional through-holes were drilled into the pivot support through holes in the load-bearing support, and split pins were securely inserted into these through-holes. The through-holes in the side walls of the load-bearing support were fastened coaxially with bolts and nuts to the through-holes in the pivot support, forming a pivot axis for the mutual rotation of the two supports.

[0025] A rotating support with a C-shaped side wall and a height of 84+2 mm is used, and the base of the treads is installed parallel to the horizontal in a staircase with different inclination angles ranging from 25 to 90 degrees.

[0026] The mounting brackets for the stair treads were attached to the load-bearing frame using quick-mount bolts and nuts. After aligning the bolts, tightening them with a force of 40N made it possible to support the maximum recommended lateral load of 2,000-3,000N at each stair tread at the mounting point.

[0027] This design of the mounting bracket assembly overcomes the shortcomings of conventional technology, allowing for a wide range of adjustment of the stair tread angle and expanding the range of tool applications that ensure sufficient reliability (additional fixing points at the required position) for securing the stair tread in the desired location. Furthermore, the proposed mounting bracket assembly is more multifunctional despite its simple structure.

[0028] Based on investigations conducted through publicly available sources, it has been confirmed that all combinations of features according to the present invention are neither known nor explicitly suggested in the prior art, and therefore the present invention satisfies the patentability requirements of "novelty" and "inventive step."

[0029] The present invention is composed of standard materials and elements in the art, and these are interconnected in a specific manner, making it industrially applicable; therefore, the present invention also satisfies the patentability requirement of "industrial applicability."

[0030] After reviewing the description and embodiments of the present invention, it will be readily apparent to those skilled in the art that other changes, modifications, and embodiments will become apparent. Therefore, all such changes, modifications, embodiments, and other fields of application that are not inconsistent with the essence of the present invention should be construed as being within the scope of protection granted by the appended claims of the present invention.

Claims

1. A mounting bracket assembly for fixing a stair tread to a load-bearing frame of a staircase, comprising a mounting support and a rotating support, The mounting support and the rotating support each consist of a base and a side wall perpendicular thereto. The base of the mounting support and the rotating support each have at least one mounting hole, The base of the mounting support can be attached to the load-supporting frame via the mounting holes in the base. The base of the rotating support is such that the footplate can be attached via a mounting hole in the base. The side wall of the rotating support has an arc-shaped through slot that protrudes toward the base side of the rotating support, The mounting support and the rotating support are connected by two fasteners, the side walls of which are connected. One of the two fasteners serves as the axis of rotation for the mounting support and the rotating support, while the other is fixed to the side wall of the mounting support and slides along the arc-shaped through slot of the rotating support. The arc-shaped through slot has a length that allows the planes of the bases of the mounting support and the rotating support to be positioned at any angle in the range of 25 to 90 degrees. An additional through-hole is formed in the side wall of one of the mounting support and the rotating support, and a corresponding hole is drilled in the side wall of the other support, and additional fasteners are placed in these holes. A mounting bracket assembly characterized by the following features.

2. The fasteners are bolts, screws, rivets, studs, pins, or combinations thereof. The mounting bracket assembly according to claim 1, characterized in that...

3. The additional fastener may be a bolt, screw, rivet, stud, or pin. The mounting bracket assembly according to claim 1, characterized in that...

4. A mounting bracket assembly for fixing a stair tread to a load-bearing frame of a staircase, comprising a mounting support and a rotating support, The mounting support and the rotating support each consist of a base and a side wall perpendicular thereto. The base of the mounting support and the rotating support each have at least one mounting hole, The base of the mounting support can be attached to the load-supporting frame via the mounting holes in the base. The base of the rotating support is such that the footplate can be attached via a mounting hole in the base. The side wall of the rotating support has an arc-shaped through slot that protrudes toward the base side of the rotating support, The mounting support and the rotating support are connected by two fasteners, the side walls of which are connected. One of the two fasteners serves as the axis of rotation for the mounting support and the rotating support, while the other is fixed to the side wall of the mounting support and slides along the arc-shaped through slot of the rotating support. The arc-shaped through slot has a length that allows the planes of the bases of the mounting support and the rotating support to be positioned at any angle in the range of 25 to 90 degrees. An additional through-hole is formed in the side wall of one of the mounting support and the rotating support, and a self-tapping screw is screwed into the side wall of the other support through the through-hole. A mounting bracket assembly characterized by the following features.

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