Constructive arrangement for a clamping block with a protruding peg for wooden furniture

Abstract

The present invention relates to a semi-oblong (1A) clamping block (1) which, on a surface (S1), has three projections (2), two higher projections (2A) that are different from each other, both with a hollow core (3), so that one is a cylindrical projection (2A') with groove rings (A), and the other is a semi-cylindrical projection (2A'); another projection of lesser height (2B) is cylindrical (4) and interspersed between the two projections of greater height (2A), finally, orthogonally to the semi-cylindrical projection (2A"), it is composed of another cylindrical projection (2C), with groove rings (A), which defines a peg that is inserted into the hole in the wooden sheet (M); the clamping block (1) is inserted into the machined recess in the wood (M) by means of the projections (2A) and (2B) thereof, and optionally has a fastening aid, by means of a widely known polyurethane adhesive such as PU glue, which is inserted into the said projections (2) of the clamping block (1), and inserted into the machined recesses in the wood sheets (M).

Description

[0001] CONSTRUCTION DISPOSITION APPLIED IN FIXING BLOCK WITH DOWEL PROJECTION FOR WOODEN FURNITURE

[0002] BRIEF INTRODUCTION

[0003]

[0001] This patent application concerns a new CONSTRUCTION DISPOSITION APPLIED TO A FIXING BLOCK WITH A DOWEL PROJECTION FOR WOODEN FURNITURE, which consists of a semi-oblong, monobloc block, containing on one surface three projections of distinct configurations, two of which are taller, with a hollow core, and the other smaller, central projection of a cylindrical shape, both with the function of driving the fixing block into the recess machined in the wooden sheet. Orthogonally to these three projections mentioned, it is composed of another projection, with a cylindrical construction arrangement with groove rings, which has the function of a dowel, making the joint between two wooden sheets.

[0004]

[0002] The fixing block is driven with a dowel through its projections and has a complementary fixing aid, through a bonding of polyurethane material well known as PU fastener that is inserted into the aforementioned projections of the fixing block and into the holes machined in the wood sheets. It is important to highlight that the use of PU is optional, being viable only as reinforcement.

[0005] FIELD OF APPLICATION

[0006]

[0003] The fixing block with a cylindrical projection with a dowel function is used in the furniture components segment. The fixing block can also be called in the consumer market as a connector or support.

[0007] STATE OF THE TECHNIQUE

[0008]

[0004] In the current state of the art, the joint between two pieces of furniture, such as a shelf fixed to the side panels of a dresser, is made with wooden dowels. Another means of fastening is a kit containing a screw and a barrel, that is, two pieces, plus a finishing piece. There are other kits that have more than three independent fastening pieces, whether or not containing the finishing piece.

[0005] In this case, the wooden dowel does not achieve much adhesion because it is driven into the thickness of the sheet, a region of low resistance, especially in plywood and particleboard sheets, even when adding wood glue or PU glue to improve adhesion.

[0009]

[0006] Related to fastening kits, it consists of a circular metal block with a central hole and circular slots, and the other part is a screw. The circular metal block is inserted into the recess machined in the sheet metal, thus inserting the screw between the slots in the circular block, and inserting the threaded end of the screw into the hole in another sheet metal, to join two pieces of furniture (shelf and frame plate). After inserting the screw into the hole, a screwdriver appropriate for the screw head is used, usually a cross-head screwdriver, known as a "Philips" screwdriver or slotted screwdriver. Tightening is done by inserting the screwdriver into the central core of the circular metal block, requiring skill. Other methods of tightening or locking the screw in the circular block, however, are complex.

[0010]

[0007] Another factor is that the kit has independent parts. When assembling a large piece of furniture with numerous shelves, some parts may be lost during assembly. This may be due to other reasons, such as the screw being separated from the circular block (scattered parts), which takes up the assembler's time searching for and assembling these parts, resulting in delayed assembly. It is also important to be aware that this kit uses a large amount of metal, involving mechanical lathes and other manufacturing processes.

[0008] Research on a patent search website uncovered a patent document that is not relevant to the proposed patent application. The document found is presented below, followed by the differences between it and the document proposed in this patent application.

[0011]

[0009] DOCUMENT: BR202021016120-0 - PUBLICATION DATE: 02 / 23 / 2023 - The construction arrangement in a connector for assembling furniture, which is the object of this patent, aims to solve the drawbacks described in the state of the art through a furniture fixing system equipped with a pin, drum and screw that provides better aesthetics and practicality in assembly and disassembly, through the use of few operations and tools. This new construction form increases the stability of fixing between the parts, significantly improving the final appearance of the assembled furniture.

[0012]

[0010] This document reveals an improvement over the kits already mentioned in the previous paragraphs. It should be noted that this kit still consists of independent parts and requires tightening tools, although fewer tools than previous prior art models. An illustration of this connector will be presented as an attachment to this patent application to provide greater clarity on the differences in the purpose of the patent application.

[0013]

[0011] The proposed patent application eliminates independent parts, that is, separate parts, as the fixing part is unique, a monoblock containing all the unified parts that perform the driving of the fixing block, in addition to the fixing between wooden sheets.

[0014]

[0012] DOCUMENT: BR 202020021646-0 - PUBLICATION DATE: 03 / 05 / 2022 - improvement applied to a connector for furniture assembly, object of this patent, aims to solve the drawbacks described in the state of the art through connectors provided with constructive forms that allow fixing without the use of tools due to the connectors being provided with a specific shape and rear projections that fit into predetermined holes next to the faces of the parts, ensuring that the end consumer can assemble their furniture without depending on specialized assemblers. This new constructive form applied to the connector provides easy, fast, and intuitive assembly without the use of tools. Furthermore, it reduces the number of hardware for assembly, eliminates assembly costs for the end consumer, and reduces the cost of manufacturing the furniture by reducing machining processes.

[0015]

[0013] The connector is a single piece, L-shaped, containing two cylindrical shapes that function as dowels. The connector is intended for fastening two pieces of furniture together. It is a connector that is visible when installed, and can only be installed on the outside of the furniture. This connector can be considered a corner or L-shaped support. An illustration of the connector is attached to verify the construction differences and the intended use when compared to the patent application.

[0016] OF THE NEW PROPOSED MODEL

[0017]

[0014] The new cylindrical projection fixing block with a dowel function is designed in a single piece, i.e., a monobloc, which dispenses with a complementary piece and another piece, in this case, a finishing cap. The block is fixed or driven by inserting it into the recess machined in the wood panel, and the fixation is made by means of three projections of different construction shapes, two of which are hollow, for two purposes, to save material. When the use of PU glue is chosen, the hollows generate greater adhesion and fixation between the block and the panel. Furthermore, the monobloc fixing block, orthogonally in one of the projections, is present with another cylindrical projection with perimeter rings, to obtain a dowel function, which connects two wooden panels.

[0018]

[0015] This last projection, with a cylindrical arrangement that defines a dowel, has the function of joining and fixing two wooden sheets, obtaining the assembly of the furniture.

[0019]

[0016] According to the functional purpose and construction characteristics, it is considered a fixing block with a dowel, in a single piece, as described in the previous paragraphs, and provides numerous advantages, since its manufacture, such as functional improvements in use.

[0020]

[0017] A fixing block that does not require a tightening tool, such as a screwdriver, additional parts, in addition to being easy to drive, which makes furniture assembly quick and hassle-free.

[0021]

[0018] It is important to highlight that the fixing block, when installed, has two functions: one as a finishing cap and the other as a depth limiting cap for the fixing block. The fixing block performs the cap function due to its semi-oblong construction arrangement, which is longer and wider than the diameter of the circular projections.

[0019] The fixing block, with its semi-oblong construction arrangement, which defines a finishing cap, allows its perimeter area to hide the burrs caused by the drilling of the wood sheet, holes used to house the cylindrical projections of the fixing block.

[0022]

[0020] If the fixing block acts as a limiting cover, it acts as a stopper, because if one of the holes made in the wood has a depth greater than that of the projections, the perimeter area of ​​the fixing block rests on the surface of the wood, preventing the fixing block from becoming uneven, that is, lowered in relation to the surface of the wood sheet.

[0023]

[0021] The importance of the fixing block being placed on top of the surface of the wooden sheet is not only for aesthetics, but also for the technical aspect, as it maintains the cylindrical projection with the function of a dowel aligned with the hole made in the other wooden sheet to be inserted.

[0024] ILLUSTRATIONS

[0025]

[0022] For a better understanding of the proposed patent application, the following is a list of figures that are attached.

[0026] FIGURE 1: Perspective view of the fixing block;

[0027] FIGURE 2: Opposite perspective view of the fixing block in relation to the previous figure;

[0028] FIGURE 3: Top view of the fixing block;

[0029] FIGURE 4: Bottom view of the fixing block;

[0030] FIGURE 5: Side view of the fixing block;

[0031] FIGURE 6: Side sectional view of the fixing block;

[0032] FIGURE 7: Perspective view of the fixing block, simulating driving into a recess in a wooden sheet;

[0033] FIGURE 8: Perspective view of the fixing block, simulating the introduction of the cylindrical projection with the function of a dowel to join two wooden sheets;

[0034] FIGURE 9: Perspective view of the product of document BR202021016120-0, belonging to the current state of the art; FIGURE 10: Perspective view of the product of document BR 202020021646-0 belonging to the current state of the art;

[0035] TECHNICAL DESCRIPTION

[0036]

[0023] The new CONSTRUCTION DISPOSITION APPLIED IN FIXING BLOCK WITH DOWEL PROJECTION FOR WOODEN FURNITURE, the subject of this patent application, consists of a fixing block (1) with a semi-oblong shape (1A), containing on its surface (S1) three projections (2) of different configurations, two of which are higher projections (2A), with hollow cores (3) and the other projection is lower in height (2B) and has a central cylindrical shape (4).

[0037]

[0024] It is important to highlight that the highest projections (2A) are distinct from each other, one being a cylindrical projection (2A) with groove rings (A), while the other is a semi-cylindrical projection (2A”).

[0038]

[0025] The three projections (2) have the function of driving the fixing block (1) into the recess (R) machined in the wooden sheet (M).

[0039]

[0026] Orthogonally, the semi-cylindrical projection (2A”) is composed of another cylindrical projection (2C), with groove rings (A), which has the function of a dowel, which forms the joint between two wooden sheets (M).

[0040]

[0027] The fixing block (1) on the surface (S2) is smooth and has a semi-rounded perimeter (B) that acts as a lid (T). The surface (S2) is also smooth and defines an area intended for inserting manufacturing serial numbers, logos or other information, through high and / or low relief engravings, in addition to enabling another means of application, such as the use of stickers. It is important to highlight that the application of information on the surface (S2) is at the discretion of the manufacturer.

[0041]

[0028] The fixing block (1) is driven into the recess machined in the wood (M) by means of its projections (2A) and (2B), and optionally has a fixing aid, through a gluing with polyurethane material well known as PU fixative that is placed in said projections (2) of the fixing block (1), and inserted into the recesses machined in the wood sheets (M). The joint between two wood sheets (M), is made by the fixing block (1) by means of the cylindrical projection (2C) that is inserted into the hole in the wood sheet (M).

Claims

CLAIM 1) CONSTRUCTION DISPOSITION APPLIED IN FIXING BLOCK WITH DOWEL PROJECTION FOR WOODEN FURNITURE, consists of a fixing block (1) of semi-oblong shape (1A) characterized by a surface (S1) equipped with three projections (2), being two projections of greater heights (2A) distinct from each other, both with hollow cores (3), so that one is a cylindrical projection (2A) with groove rings (A), and the other, a semi-cylindrical projection (2A”); the central one is a projection of lesser height (2B) is cylindrical in shape (4) and interspersed between the two cylindrical projections of greater height (2A), finally, orthogonally the semi-cylindrical projection (2A”), is composed of another cylindrical projection (2C), with groove rings (A), which define a dowel; finally, the surface (S2) is smooth with a semi-rounded edge (B), which defines a lid (T).

Images