ES1057724U - Device for fixing a solid tubular leg to a piece of furniture. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Device for the solid fixing of a tubular leg to a piece of furniture, of the type comprising a screw in the axial direction of the leg for threading in the piece of furniture; characterized in that it is constituted by a ferrule that is inserted in the upper end of the leg, and that is provided with a perimetral wing limiting said insert, having a hole centered in its coronation for the passage of the fixing screw to the furniture, whose head it remains inside the ferrule, housed in the recess in a complementary way to an expansive part of the contour of the ferrule by wedging, which runs inside a housing for this purpose and in a suitable manner practiced inside the ferrule; the expansive piece is constituted in material of greater hardness than the tip; the contour of the end piece is divided into portions by means of radial recesses, in order to allow its expansion due to the advancing of the expansive piece inside the housing thereof during the screw tightening of the leg; the contour of the ferrule externally has radial ribs for improving the adherence against the internal contour of the leg; the crowning of the ferrule has externally some brake wedges of the counterclockwise rotation. (Machine-translation by Google Translate, not legally binding)

Description

Device for the solid fixation of a leg Tubular to a piece of furniture.

Object of the invention

The present invention relates to a device  for the solid fixation of a tubular leg to a piece of furniture.

Background of the invention

Currently fixing tubular legs to the corresponding furniture, such as a bed, table or chair, it is carried out by means of tightening coupling parts in transversal, more expensive system, or by direct threading of the leg, thanks to a stud or screw that has the axial direction of the leg, and that it is fixed by welding or welded plates.

This last system, although it is easier and economical, it has the disadvantage that it does not offer a fixation solid, because due to the moment that transmits the leg to the union, games that result in union loosening occur threaded, and that compromise the stability of the furniture.

This problem is remedied by use of the device of the invention.

Description of the invention

The device of the invention gets low cost a solid union of the tubular leg to the furniture correspondent.

According to the invention, the device is constituted by a tip that is inserted in the upper end of the leg, this insertion being limited by means of a wing extreme perimeter of the count.

The tip has a hole in its coronation center that passes through the fixing screw to the furniture, whose head is on the inside of the end inserting into a recessed in a complementary way, in order to avoid its turn relative, of an expansive piece by contour wedging of the count.

This piece is preferably shaped truncated pyramidal or conical, and runs through a housing of complementary form (truncated pyramidal or conical trunk) internal to the tip.

To favor the expansion of the contour of the count, this is divided by radial recesses in Different portions

These portions present externally some nerves that improve adhesion against the inner contour of the leg to expand the count.

The coronation of the story presents outwardly some wedges of suitable configuration to allow the  turn clockwise and consequently tighten the leg when has threaded butt against the furniture for the expansion of the container, but that hinder the counterclockwise rotation and loosening of the Union.

Brief description of the drawings

Figure 1 shows a side view of the end of a leg incorporating the device of the invention.

Figure 2 shows a diametral section of the Figure 1.

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Figure 3 shows a plan view of the

 \ hbox {figure 1.} 

Figures 4 and 5 show paths seen in perspective of an exploded view of the device of the invention.

Description of a practical embodiment of the invention

The device 1 of the invention is constituted  by a tip 2 that is inserted into the open upper end of a tubular leg 3.

Count 2 has an extreme perimeter wing 4 which limits its insertion, and in its coronation it has some wedges 5 that hinder the clockwise rotation of the counting when it is in contact with the support face of the furniture surface, not represented, where the leg is fixed, such as a bed. From this mode, and since the fixation is threaded, the loosening of this threaded joint.

The tip has a hole in its coronation 2a 6 centered for the passage of the fixing screw 7 to the furniture, whose head 8 supports and enters a recess 9, so complementary to avoid its relative rotation, of a piece 10 expansive contour of the contour, also endowed with a hole 10a for the screw passage. This piece is shaped troncopiramidal or truncated conical and has a greater hardness for, at run inside a housing 11 of the container, which It is made of less hard material, make a push wedge-like side against the walls of the latter, which has complementary form, that is, truncated pyramidal or conical, and Get your expansion.

The contour of the count 2 is divided into portions 12 by means of radial recesses 13, which enables its opening and expansion as piece 10 advances through the inside the housing 11 when fully threading the leg against the furniture and tighten it.

This expansion achieves optimal fixation of the  leg, which is further enhanced by the arrangement of nerves 14 radius on the contour of the end that makes even more press against the inside of the leg.

Thanks to this "extra" squeeze by the inside of the leg compared to fixing devices  current, and to wedges 5 that prevent the counterclockwise rotation of the threaded joint, a solid and durable coupling of the leg to the furniture.

Describe sufficiently the nature of the invention, as well as how to perform it in practice, should be noted that the provisions indicated above and represented in the attached drawings are susceptible to modifications of detail as long as they do not alter the principle fundamental.

Claims (3)

1. Device for the solid fixing of a tubular leg to a piece of furniture, of the type that includes a screw in the axial direction of the leg for threading on the piece of furniture; characterized in that it is constituted by a bead that is inserted in the upper end of the leg, and which is provided with a limiting perimeter wing of said insertion, presenting a hole centered in its coronation for the passage of the fixing screw to the furniture, whose head it remains on the inside of the bead, housed in the recess of a complementary form of an expansive piece of the contour of the bead by means of wedging, which runs through the interior of a housing for the purpose and suitably practiced inside the bead; the expansive piece is constituted in material of greater hardness than the one it contains; the contour of the bead is divided into portions by radial recesses, in order to allow its expansion as a result of the advance of the expansive piece inside the housing thereof during the threaded tightening of the leg; the contour of the tip has externally radial ribs for improving adhesion against the internal contour of the leg; The crowning of the bead externally presents brake wedges of the counterclockwise rotation. 2. Device according to claim 1 characterized in that the expansive part has a pyramidal trunk shape, as well as the housing of the container. 3. Device according to claim 1 characterized in that the expansive part has a conical shape as well as the housing of the container.