ES2245573B1 - Fixing device for structures pieces of furniture, has support with upper surface towards channel and drilling forms and faced pair flattened in direction of channel, and relatively separate tightening position is also provided for assembly - Google Patents

Abstract

The device has a support with an upper surface towards the channel and drilling forms and a faced pair flattened in the direction of the channel. A relatively separate tightening position is provided for the assembly, where leg is a rotating cam that consists drilling on an axis to overlook the face. The support forms a head with half-rotating drive and rotating cap, where rotating cam is configured as a diamond rounded vertex to rotate between two positions that are not operationally active.

Description

Device for fixing parts in furniture structures

Field of the Invention

This invention concerns a device intended for fixing parts in furniture structures constituted by carpentry of aluminum profiles; by example for fixing hinges, brackets, corners frames and other hardware used in furniture structures, as glass door frames built in profile aluminum.

Prior art

In aluminum carpentry are known hardware fixing devices that are mounted by insertion into one end of a channel of a profile and slide along this one until reaching a chosen location in which the squeeze in.

Fixing devices are also known. of fittings in which the implantation in the profile channel is check frontally by means of a combined insertion maneuver oblique followed by a dejection; so that a means of Tighten the screw-nut assembly are located operationally in the channel and in a loose state that, when performing Screwing the screw into the nut produces the state without more tight that fixes the hardware in the chosen position.

Fixing devices are also known. of fittings in which the implantation in the profile channel is also produces the channel frontally, but with a maneuver consisting of a single rectilinear movement perpendicular to the channel bottom. In this type of device is included one which requires a "C" profile channel that has a background and straight sides and that on the edge of these sides forms in mutual confrontation paths longitudinal flanges parallel to bottom of the channel itself; between these tabs slides fit a base of equal thickness that these eyelashes and that is crossed by an axially non-movable pin and at its end it bears riveted as a propeller a sheet that is less than width the channel (between the longitudinal tabs that restrict your front entry) and whose length is greater than this width between longitudinal channel tabs, but smaller than the width internal between the side walls of this channel; in such a way that the mounting of the base on the rail is done with the greatest sheet length aligned with the channel and then rotated a quarter turn the pin and the sheet is applied to the face inside of both said longitudinal tabs; The plate riveted to the end of the pin is equipped with a helical warping to ensure tightening against constructive differences and / or of mounting the elements involved in the device fixing (profile channel, hardware base, pin and sheet helical).

This device has several features peculiar: one, the means of tightening are constituted by two parts, pin and helical plate; two, one is needed riveting operation to fasten the helical plate to the pin; three, this riveting operation must be carried out with the pin already installed in the hardware base, which makes it difficult considerably the operation and implies risk of breakage of the base and pin, and deformation of the helical plate; four, in the mounting on the channel the base can fall while the pin is not turned, which implies the difficulty of having to arbitrate means that hold the base while the rotation of the pin that leads through the helical plate.

Explanation of the invention and advantages

Faced with this state of affairs, the present invention proposes a device for fixing parts in furniture structures, especially for fixing with respect to a channel formed in a structural aluminum profile for furniture; whose device consists of a support that has a dorsal face towards the bottom of the channel and, opposite to it, a frontal face accessible by the front of the structural profile, on whose dorsal face the support integrally forms at least one pair of legs facing each other that are flattened in the direction of the channel and that are capable of a certain elastic approach / separation set between a relatively close position of mounting in the channel and a relatively separate position of tightening of this assembly, whose legs form on their outer side each lips that cover between their edges a nominal measure conveniently greater than the width of the channel and that are capable of being located by elastic jump within paths grooves formed in the side walls of the channel, and between whose legs a rotary cam is installed that is constituted integrally in an axis that appears on the front face of the support and there widens forming a head with rotary drive and rotary stop means, whose rotary cam has a rhombus-like configuration of rounded vertices and is capable of operatively rotating between non-active and active positions that are respectively congruent with said mounting positions and torque tightening positions. legs and in which the major axis of the rotary cam is oriented parallel and transverse to the channel, the minor axis of the rotary cam is of equal or greater diameter than the axis and has a measure adjusted in excess of the diameter of two arc-cylindrical recesses and facing each other from the inner sides of the legs, and the major axis of the rotary cam has a convenient measure in conjunction with the thickness of the lips and the depth of the grooves. In addition, in relation to the rotary cam, there is an oblong window in the longitudinal direction in the support that has a length somewhat greater than said major axis of the rotary cam and that in its central part forms opposite arc widening that encompasses a measure adjusted by tailored excess of the minor axis of the cam
Rotary

A first feature of the device It is recommended that the tightening means are constituted by a single piece, namely the shaft that is integral with the clamping cam and with a head equipped with rotary drive means and rotary stop. This means saving the riveting operation, risky and cumbersome, of the helical plate, in the device known described last. And that, without incurring major costs or constructive complexity, since it is the same as constituting the pin (on which the helical plate is riveted) of the known device that the shaft with the integral cam of the device  recommended. On the other hand, this invention does not require perform any operation that involves a risk to the integrity of the base or the rest of the device, since the integral set of cam-shaft-head only needs to be inserted through of the oblong window to be in operational arrangement.

Another important feature of the device of the invention is that its placement in the profile channel Structural aluminum is performed by elastic jump using a certain elastic approach of the legs to slide along the smooth side walls of the canal until the lips reach the grooves formed therein; at this time there is a elastic recovery that causes the lips to penetrate somewhat in said grooves, which determines a hitch even without tightening or a fixing without responsibility that, without the need for other means of clamping keeps the support linked to the channel waiting for the tightening maneuver is performed by turning the room turn of the rotary cam.

These and other particular characteristics of the invention are revealed in the detailed description that follow.

Drawings and references

To better understand the nature of the present invention, in the accompanying drawings we represent a preferred form of industrial realization, which is exemplary merely illustrative and not limiting.

Figure 1 is an exploded view in perspective showing a support (3) according to the invention, together with its structural profile (1) with channel (2) and together with a set rotary cam integral (9), shaft (10) and head (11) evoking its transverse insertion by elastic jump of the lip (7) of the legs (6). This figure includes a corresponding expanded detail to a cross section of the structural profile (1) accompanied by a corresponding embellishment cover (23).

Figure 2 is a top plan view corresponding to the support (3), that is, given by its front face (5).

Figure 3 is an enlarged view of the section III-III indicated in figure 2.

Figure 4 is a side view of the assembly cam-shaft-head (9-10-11) showing the largest measure of the cam (9).

Figure 5 is the left side view corresponding to figure 4.

Figure 6 is the right side view corresponding to figure 4,

Figure 7 is an enlarged view according to arrow VII indicated in figure 1 and shows in position Vertical profile of the lips (7) of the legs (6).

Figure 8 is an enlargement of detail VIII circled in figure 1 and arranged horizontally in correspondence with figure 7.

Figure 9 is like Figure 3, but with the support (3) installed in the channel (2) and with the rotary cam (9) installed between the legs (6) in the non-active position.

Figure 10 is the upper floor corresponding to figure 9.

Figures 11 and 12 are respectively equivalent to figures 9 and 10, but referred to the position Rotary cam active (9).

Figure 13 is a perspective view that shows the device of the invention applied to a hinge (24) of furniture.

Figure 14 is a top plan view corresponding to a bracket (25) for joining profiles structural (1) miter.

Figure 15 is section XV-XV indicated in figure 14.

In these figures the following are indicated references:

one.-

Structural profile

2.-

Profile Channel (1)

3.-

Support

4.-

Face back support (3)

5.-

Face support front (3)

6.-

Support legs (3)

7.-

Lips lip (6)

8.-

Channel Slots (2)

9.-

Cam rotary

10.-

Axis rotary cam (9)

eleven.-

Shaft Head (10)

12.-

Arc-legged arch recess (6)

13.-

Head extensions (eleven)

14.-

Tangent sides of extensions (13)

fifteen.-

Longitudinal support wall (3)

16.-

Upper chamfer of lips (7)

17.-

Lower chamfer of lips (7)

18.-

Upper oblique groove side (8)

19.-

Lower oblique groove side (8)

twenty.-

Oblong support window (3)

twenty-one.-

Arc widening of window (20)

22.-

A annular shaft (10)

2. 3.-

Structural Profile Cap (one)

24.-

Hinge

25.-

Squad

26.-

Front head drain (eleven)

Exhibition of a preferred embodiment

Regarding the drawings and references above listed, an execution mode is illustrated in the attached drawings preference of the invention and two particular cases of application Of the same. The invention relates to a device for fixing parts that is applicable to structural profiles (1) of aluminum for furniture, for example, for the construction of glass door frames. The two particular cases of application are for a hinge (24) and a square (25) for joining to miter structural profiles (1).

As seen in Figure 1, the device of the invention consists of a support (3) having a face dorsal (4) towards the bottom of the channel (2) and, opposite to it, a face front (5) accessible from the front of the structural profile (1), in whose dorsal face (4) the support (3) integrally forms at least one pair of legs (6) facing each other that are flattened in the channel direction (2) and they are capable of a certain game elastic approach / separation between a relatively position Approximate mounting on the channel (2) and a relatively position separate from tightening of this assembly, whose legs (6) form in its outer side two lips (7) covering between its edges a nominal measure conveniently greater than the width of the channel (2) and that are likely to be located by elastic jump within two grooves (8) formed on the side walls of the channel (2), and between whose legs (6) a rotary cam (9) is installed that it is constituted entirely in an axis (10) that appears on the face  front (5) of the support and there it widens forming a head (11)  with rotary drive and rotary stop means, whose rotary cam (9) has a rhombus-like configuration of rounded vertices and is likely to rotate operatively between both non-active and active positions that are respectively congruent with said mounting and torque tightening positions of legs (6) and in which the major axis of the rotary cam (9) it is oriented parallel and transverse to the channel (2), the minor axis of the rotary cam (9) is of equal or greater diameter than the shaft (10) and has a measure adjusted in excess of the diameter of each arc-cylindrical recesses (12) and mutually facing each other internal sides of the legs (6), and the major axis of the cam Rotary (9) has a convenient measure in conjunction with the thickness of the lips (7) and the depth of the grooves (8).

In accordance with this preferred execution in the support (3) there are two sets of pairs of legs (6) and cam rotary (9) integral with the shaft (10) and provided with head (11); in addition, in relation to the rotary cam (9), in the support (3) there is an oblong window (20) in the longitudinal direction that has a length somewhat greater than said major axis of the rotary cam (9) and that in its central part forms arc widening (21) faced that cover a measure adjusted in excess of the Measurement of the minor axis of the rotary cam (9).

This device is very simple constitutive that, apart from the required support (3) to be fixed in the channel (2) of the structural profile (1) of aluminum, involves a single piece that is the one that integrates the cam (9), the shaft (10) and the head (11), and that activates the tightening of the fixation in conjunction with the legs (6) that are integral with the support (3).

The assembly of this single piece (9-10-11) on the stand (3) simply requires tipping the cam (9) with respect to the window oblong (20) with arc widening (21) and then push the single piece (9-10-11) to through it. To determine a single piece retention (9-10-11) after its assembly in the support (3), the shaft (10) forms (figures 1 and 4) an annular nail (22) in return that is likely to penetrate by elastic jump to through the arc widenings (21) of the window oblong (20).

Regarding this assembly of the single piece (9-10-11) another particularity of the invention is that the head (11) of the integral shaft (10) (figures 5 and 6) with the rotary cam (9) it has a circular profile that in two Opposite quadrants form paths (13) delimited between two tangent sides (14) to the circular quadrants adjacent, and the axis that passes through the vertices of both extensions (13) is out of date by a quarter turn of the major axis of said rotary cam (9); according to this the stop means of the rotary cam (9) are (figures 10 and 12) the that in the head of the shaft (10) integral with the rotary cam (9), one or the other of the two tangent sides (14) linked by a circular quadrant are attached to a longitudinal wall (15) of the support (3) in conjunction with said rotary positions not active and active of said rotary cam (9), longitudinal wall (15) constituted for the support purposes of the support (3).

The operation of the advocated device is illustrated by figures 9 to 12, where the positions not active (figures 9 and 10) and active (figures 11 and 12) of the cam (9) in congruence with some leg positions (6) relatively close or separate. At this point it should be noted that, to achieve the situation of figure 9, the legs (6) have due to get a little closer to penetrate between smooth side walls of the canal (2) until the lips (7) they reach the grooves (8) and an elastic recovery of leg separation (6) that achieves an engagement without responsibility that prevents the support (3) from detaching of the channel (2) while (acting on the emptying -26- of the head -11-) the cam (9) is turned to its active position tightening determinant; this facilitates the necessary maneuvers to adjust the position of the support (3) along the profile structural (1) without requiring means to perform the clamping while checking the tightening.

For this tightening to be effective and without clearances against possible construction or assembly differences of the components, according to another characteristic of the invention, the lips (7) form each other (figures 7, 8, 9 and 12) upper (16) and lower (17) chamfers operating in conjunction with respective oblique sides superior (18) and inferior (19) of said grooves (8) of the channel (2).

As examples of device application advocated figures 13 to 15 show the use for a hinge (24) (figure 13) and for a miter joint square (25) of structural profiles (1).

A possible execution variant included in the invention consists in that said support (3) lacks pairs of legs (6) and said rotary cam (9), integral with the shaft (10) provided with head (11), it is oversized in its major axis until reaching the measure between the lips (7) of the legs (6) in the tightening position, and at the ends along this axis greater shape projections equivalent to said lips (7) of the legs (6). That is, the legs (6) have been replaced by a  cam configuration (9) in which means are incorporated  equivalent to the lips (7) and, of course, with the measurements due to perform its function. It is also planned to be used as a base for fixing a hinge (24) or by duplicating the arrangement as a square element (25) for joining two profiles (1).

Claims (9)

1. Device for fixing parts in furniture structures, especially for fixing with respect to a channel (2) formed in a structural profile (1) of aluminum for furniture, characterized in that it consists of a support (3) that has a dorsal face (4) towards the bottom of the channel (2) and, opposite it, a front face (5) accessible by the front of the structural profile (1), on whose dorsal face (4) the support (3) integrally forms at least one pair of legs (6) facing each other that are flattened in the direction of the channel (2) and that are capable of a certain elastic approach / separation set between a relatively close position of mounting in the channel (2) and a relatively separate tightening position of this assembly, whose legs (6) form on their outer side two lips (7) that cover between their edges a nominal size conveniently greater than the width of the channel (2) and which are capable of being located by elastic jump in the breast of two grooves (8) formed on the side walls of the channel (2), and between whose legs (6) a rotary cam (9) is installed that is integrally constituted on an axis (10) that appears on the front face (5) ) of the support and there it widens forming a head (11) with rotary drive and rotary stop means, whose rotary cam (9) has a rhombus-shaped configuration of rounded vertices and is capable of operatively rotating between non-active positions and active which are respectively congruent with said mounting and tightening positions of the pair of legs (6) and in which the major axis of the rotary cam (9) is oriented parallel and transverse to the channel (2), the minor axis of the rotary cam (9) is of equal or greater diameter than the shaft (10) and has a measure adjusted in excess of the diameter of two arc-cylindrical recesses (12) and mutually facing each other on the inner sides of the legs (6), and the Major axis of the rotary cam (9) It has a convenient measurement in conjunction with the thickness of the lips (7) and the depth of the grooves (8). 2. Device for fixing pieces in furniture structures, according to the preceding claim, characterized in that said lips (7) form both upper (16) and lower chamfers (17) operating in conjunction with respective upper oblique sides (18 ) and lower (19) of said grooves (8) of the channel (2). 3. Device for fixing parts in furniture structures, according to the preceding claims, characterized in that in relation to the rotary cam (9), on the support (3) there is an oblong window (20) in longitudinal direction which has a length somewhat larger than said major axis of the rotary cam (9) and which in its central part forms opposite arc widenings (21) that cover a measure adjusted in excess to the measure of the minor axis of the rotary cam (9). 4. Device for fixing pieces in furniture structures, according to the preceding claims, characterized in that said shaft (10) forms an annular nail (22) in counter-output that is capable of penetrating by elastic jump through the arc widenings (21) of the oblong window (20). 5. Device for fixing parts in furniture structures, according to the preceding claims, characterized in that in the support (3) there are two sets of pairs of legs (6) and rotary cam (9) integral with the shaft (10 ) and provided with head (11). 6. Device for fixing pieces in furniture structures, according to the preceding claims, characterized in that the head (11) of the shaft (10) integral with the rotary cam (9) has a circular profile that in two opposite quadrants forms two extensions (13) delimited between two tangent sides (14) to the adjacent circular quadrants, and the axis that passes through the vertices of both extensions (13) is offset by a quarter turn relative to the major axis of said rotary cam (9 ). 7. Device for fixing pieces in furniture structures, according to the preceding claims, characterized in that in the head (11) of the shaft (10) integral with the rotary cam (9), one or the other of the two tangent sides (14) linked by a circular quadrant are attached to a longitudinal wall (15) of the support (3) in conjunction with said non-active and active rotary positions of said rotary cam (9), longitudinal wall (15) constituted for sustaining purposes own support (3). 8. Device for fixing parts in furniture structures, according to the first and second claims, characterized in that said support (3) lacks pairs of legs (6) and said rotary cam (9), integrates with the axis ( 10) provided with a head (11), it is oversized in its major axis until reaching the measure between the lips (7) of the legs (6) in the tightening position, and at the ends according to this major axis it forms equivalent projections to said lips (7) of the legs (6). 9. Device for fixing parts in furniture structures, according to the preceding claims, characterized in that it is intended to be used as a base for fixing a hinge (24) or duplicating the arrangement as a square element (25) for joining of two profiles (1).