OA17243A - Flexible box-fastening hook and element to be fastened by said hook. - Google Patents

Abstract

Flexible box-fastening hook and element to be fastened by said hook, it is configured from, at least, one part with, at least, a flexible part and comprising a distal end (12), a first horizontal projection (L) between the joining point of the hook (1) with the element to be fastened (2) and the distal end (12) of the hook (1) is greater than a second horizontal projection (L2) between the same joining point of the hook (1) with the element to be fastened (2) and the internal wall of the box (3) where it is going to be installed. Furthermore, said distal end (12), on abutting with the internal wall of the box (3), bends being curved in direction opposite the direction of the installation of the device or support (2) inside box (3). Optionally, the distal end (12) incorporates fastening means (14), consisting of teeth claws or edges which are driven into the internal wall of the box (3).

Description

DESCRIPTION

FLEXIBLE BOX-FASTENING HOOK AND ELEMENT TO BE FASTENED BY SAID HOOK

OBJECT OF THE INVENTION

The invention, as stated in the heading of the présent heading, relates to a flexible box-fastening hook and the element to be fastened which houses said hook, giving the hook several advantages and innovative characteristics inhérent to its particular configuration, which will be described in more detail below and which are an outstanding novelty in the current state of the art.

FIELD OF APPLICATION OF THE INVENTION

The field of application of the présent invention is included within the sector of the industry dedicated to the manufacturing of mechanisms, devices and accessories of electrical and electronic material.

BACKGROÜND OF THE INVENTION

Currently, the éléments to fasten, for example electrical or electronic devices or the supports thereof, which are installée! inside a box, are fastened through two very different mechanisms. In the first method, the box, where they are going to be installed, has a sériés of housings for screws and, thereby, the element be fastened is fastened to the box.

In the second method, when the box where the element to be fastened is going to be installed does not hâve housings for screws or the element to be fastened does not hâve means to be fastened using screws, the fastening is performed using a sériés of rigid hooks.

These hooks consist of rigid éléments which emerge laterally from the body of the element to be fastened and which are fastened to the walls of the box using pressure by the tightening of the screws as they cause the hooks to open in the direction of the internai walls of the box where it will be installed. d

- 3 With this solution, although the hooks described achieve the fastening of the body of the element to be fastened to the box, it is not fully effective since, in the event of possible movements of the body of the element to be fastened within the box, for example, highly frequent when said element to be fastened consists of a power point, the fastening weakens and the pressure of the hooks loses its strength. Furthermore, with the described disposai of the hooks inclination, the movement and the strength of pull which causes the extraction, of for example, a plug pin, may cause the body of the element to be fastened to corne out of its location inside the box.

Furthermore, another drawback is that the hook system described makes the use of tools necessary, both for its installation and its de-installation. Likewise, another drawback is that each hook is independently fixed with its corresponding screw, which causes difficulties to correctly balance the position of the element to be fastened, since the pressure exerted by the screws may be different.

Finally, the curved movement of the hooks from the inside towards the internai walls of the box where it is going to be installed may cause the trappîng of any of the power or control cables of the éléments to fasten for which they are intended, with the subséquent risks of malfunctioning or short-circuit of the element to be fastened.

It would, therefore, be désirable to hâve improved and faster fastening means between the element to be fastened and the box wherein it is incorporated, this being the essential objective of the présent invention through the development of a new type of fastening hook, the design and structural configuration whereof are specifically devised to improve the aforementioned drawbacks.

As reference to the current state of the art, it should be indicated that the existence is unknown, at least by the applicant, of any other fastening hook with technical and structural characteristics similar to those shown here, as claimed.

EXPLANATION OF THE INVENTION

More specifically, what the invention proposes is, as already stated, a hook applicable for the box-fastening and the element to be fastened by said hook, and which, with the hook designed to be incorporated, either unitary or in grouped form, it has, among other particular characteristics, a flexible structural configuration which makes it suîtable to achieve the fixing of the element to be fastened to the box

- 4 wherein it is inserted quickly and effectively, siniply by pressure and with the use of any type of tools being necessary.

For this purpose, and more specifically, the hook of the invention is configured from, at least, a part with at least one flexible part which can absorb a flexible deformation and which, once placed in the element to be fastened to a box, the distance between the joining point of the hook to the element to be fastened, whether a device or support, and the internai wall of the box to be installed is less than the projection of the distance between the same joining point of the hook and the distal end of the hook. Said distal end will be responsîble for exerting pressure against the internai wall of the box for the fastening of the element to be fastened in question, through the accumulated elastic energy due to bend of the hook in the installation process.

In this way, in the installation process, the hook to corne into contact with the box bends until the point of entering the box, the time when the distal end of said hook starts to touch the internai wall of the box, with an oblique direction towards the internai wall of the box and towards the opposite direction of the installation. From here, the “element to be fastened - hook” assembly slides with the friction between the distal end of the hook and the internai wall of the box until the final installation position.

Once the installation has been completed, and due to the fact that the distal end of the hook touches on the internai wall and is directed towards the internai wall of the box and in direction opposite the direction of the installation, in an extraction process of the element to be fastened said distal end presses obliquely in direction to the internai wall of the box and extraction direction, hindering the extraction of the element to be fastened already installed.

Furthermore, if the box, where the element to be fastened is going to be installed, has, optionally, a sériés of grooves, the pressure of the distal end of the hook is much greater, since it fixes much better between the grooves, increasing the necessary extraction force of the element to be fastened already installed.

Likewise, preferably, in the distal end of the hook fastening means are positioned which improve the grip of the hook with the box walls, consisting, for example, of teeth, claws or even edges, so that on trying to perform the extraction of the element to be fastened, they act driving into the internai wall of the box, even further increasing the amount of force necessary for the extraction of the element to be fastened due to the oblique direction towards the internai wall of the box and in^

- 5 direction opposite the installation of the element to be fastened.

In an option of embodiment, the hook forms part of the body of the element to be fastened, or bien constitutes an independent part which has a joining section, which may consist of a straight section which is fixed by any appropriate means to the element to be fastened.

Finally, it should be mentioned that, optionally, the hook has a manual gripping surface to unfasten it from the internai walls of the box, or where applicable, to unfasten the fastening means said hook has, whether claws, teeth or edges, and easily extract the element to be fastened already installed, optionally existing on said surface an orifice which allows insertion of a tool to perform said operation if so desired, since in certain solutions the space existing or said grip may be very tight.

The described flexible fastening hook in a box, since, is an innovative structure of characteristics unknown until know for the intended purpose, reasons which, together with its practical usefulness, give it sufficient grounds to obtain the privilège of exclusiveness applied for.

DESCRIPTION OF THE DRAWINGS

To complément the description being made and in order to aid towards a better understanding of the characteristics of the invention, a set of drawings is attached as an intégral part of said description wherein, with illustrative and non-limiting character, the following has been represented:

Figure L- Shows a simplified diagram of two flexible boxfastening hooks and the element to be fastened that said hooks hâve, ail represented in exploded view.

Figure number l-A.- Shows a diagrammatic sectional view of a simplified example of two flexible box-fastening hooks and the element to be fastened, in this case a device, which houses said hooks, object of the invention, grouped the hooks with concave form and in a phase before its installation, ail as a reflection of figure l above;

	- 6 -
Figure number l-B.-	Shows a diagrammatic view the same as that of figure 1-A but with the element already installed, where due to the contact of the flexible hooks with the box, the distal ends of the hooks now hâve a direction in the internai walls of the box and a direction opposite that of the installation;
Figure number l-C.-	Shows an expanded view of detail A indicated in figure 1-B, and which shows the disposai of the distal end of the hook on the internai wall of the box in direction to the internai wall and in direction opposite the direction of the installation of the element or device;
Figure number l-D.-	Shows a diagrammatic view in section of a simplified example of two flexible box-fastening hooks and the element to be fastened, in this case another device grouped the hooks horizontally and in a phase before that of their installation.
Figure number l-E.-	Shows a diagrammatic view équivalent to that of figure 1-D but with the device already installed, where due to the contact of the flexible hooks with the box, the distal ends of the hooks now hâve a direction in the internai walls of the box and a direction opposite that of the installation.

Figures number 2-A and 2-B.Show different perspective views of an example of embodiment of the flexible hook of the invention, represented in an option of embodiment thereof as an individual or independent part of the element to be fasten it is intended for, observing the comprising parts, as well as its general configuration;

Figures number 3 and 4.- Show two similar examples of another option of embodiment of the flexible fastening hook, according

	- 7 - to the invention, in this case forming a part with three hooks grouped by a same joining section and as element independent of the element to be fastened it is intended for;
Figure number 5.-	Shows a perspective view of an example of box and of the element to be fastened, in this case the base of a device, with three hooks, according to the invention incorporated forming an intégral part thereof, observing here its disposai with respect to said base and box;
Figure number 6.-	Shows a perspective view of an example of box and of an element to be fastened, in this case of a support of a device wherein three hooks of the invention are incorporated forming an intégral part of said support;
Figure number 7.-	Shows a perspective view and a variant of two dos hooks; and
Figure number 8-	Shows a sectional view of a box, the hook of figure 7 and the element to be fastened, in this case of a device, fastened to the hooks and showing the extraction system thereof.

PREFERRED EMBODIMENT OF THE INVENTION

In light of said figures, and in accordance with the numbering adopted, several examples of non-limiting embodiment can be observed therein of a flexible box-fastening hook and different éléments to fasten, such as, for example, supports and electrical and electronic devices, which house said hook where the hook comprises the parts and éléments indicated and described in detail below.

As observed in figures 1, 1-A to 1-E, the hook (1) in question, applicable to obtain the fastening of an element to be fastened (2), in this case a device, to be installed in a box (3), in this example, of the type embedded in a wall, is configured from, at least, a part with, at least, a flexible part and with at least one distal end (12)

- 8 and which, once the hook is placed in the element to be fastened (2), a first horizontal projection (L) between the joining point of the hook (l) with the element to be fastened (2) and the distal end (12) of the hook (l) is greater than a second horizontal projection (L2) between the same joining point of the hook (l) and the internai wall ofthe box (3).

The distal end (12) is that in charge of exerting pressure on the internai wall of the box (3) for the fastening of the element to be fastened (2) in question, said pressure originating from the elastic energy accumulated by the bending of the hook (l) during the installation. In this way, in the installation process, the hook (1) on coming into contact with the box (3) bends until being able to enter inside the box (3), the time when the distal end (12) of the hook (1) touches the internai wall of the box (3), with a m oblique direction towards the internai wall of the box (3) and towards the opposite direction of the installation. From here, the element to be fastened (2) - hook (1) assembly slides with the friction between the distal end (12) of the hook (1) and the internai wall of the box (3) until the final installation position.

Furthermore, the box (3) has, optionally, a sériés of grooves (31) in the internai wall thereof in coïncidence with the position of said distal end (12) of the hook (1), said grooves (31) helping to fasten much better the distal end (12) in the inner walls of the box (3) increasing, therefore, the necessary extraction force of the element to be fastened (2) installed there.

Likewise, preferably, in the distal end (12) of the hook (1) is contemplated the existence of fastening means (14) which improve the grip thereof with the internai walls of the box (3) consisting, for example, of teeth, claws or edges, which, on attempting to perform the extraction of the element to be fastened (2), act by way of a fish hook, driving even further into the internai wall of the box (3), increasing the amount of force necessary to extract the element to be fastened (2).

In an option of embodiment, such as that shown in figures 2-A, 2-B, 3 and 4, the hook (1) is independent of the element to be fastened (2) and consists of a part bent in several sections comprising, at least, a joining section (11) and, at least, a flexible distal end (12) joined to said joining section (11) by an elastic bridge (13), determined by a transversal groove, the joining section (11) being designed to be joined to the element to be fastened (2) the distal end (12), including different claws as fastening means (14), being oriented in the direction opposite the direction ofthe installation of the element to be fastened (2) inside the box (3).

In said figures, the hook (1) is an element independent of the element to be

- 9 fastened (2) and, as shown in figures 2-A and 2-B, it contemplâtes a single flexible distal end (12) or, as shown in figures 3 and 4, it contemplâtes several flexible distal ends (12) joined together by a single joining section (11) designed to be joined to the element to be fastened (2).

Optionally, as shown in figure4, said joining section (11)hasastep (lla) for a better adaptation to the element to be fastened (2).

Figure 5 shows an alternative option of the invention, where the hook (l) is integrated in a plural number in the body of the element to be fastened (2) for which it is intended.

And in figure 6 another example is shown of the hook (l) of the invention wherein, also in plural form, it forms an intégral part of the element to be fastened (2), in this case consisting of a support of a device, observing in both cases the disposai of the flexible distal end (12) of the hooks (1), incorporating claws as fastening means (14), oriented in direction opposite the direction of the installation of the element to be fastened (2) inside box (3).

Preferably, furthermore, the flexible distal end (12) of the hook (1) has a gripping surface (15) with an edge curved towards said distal end (12), to unfasten the hook (1) and easily extract the element to be fastened (2) from the inside of the box (3), there optionally being on said surface an orifice (16) suitable for the insertion of a tool (h) to perforai said extraction operation.

Furthermore, preferably, when the element to be fastened (2) is a device, it may hâve an opening at the height of the gripping surface (15) of the hook, so that said gripping surface (15) can be introduced by it and facilitate the extraction of the hook (1) through the lid which covers the device.

In an option of more simplified embodiment (figures 7 and 8) the hook (1) of two distal ends (12) has as fastening means to an element to be fastened (2) orifices (17) where the same number of lugs (18) which appear in the lower part of the element to be fastened (2) shall be inserted in correspondence (2).

Furthermore, as an alternative system for the extraction of the hook (1), it has a recess ( 19) at each distal end (12) to help the introduction of a tool (h) and facilitate the extraction of hook (1).

Having sufficiently described the nature of the présent invention, as well as the manner of putting it into practice, it is not considered necessary to give further explanation in order for any person skilled in the art to understand its scope and the advantages derived therefrom, stating that, within is essential nature, it can be put q/

- w into practice in other forms of embodiment that differ in details from those indicated by way of example, and whereto protection claimed will equally cover, provided that its main principle is not altered, changed or modified. J

Claims (14)

1. Flexible box-fastening hook for electrical devices and/or for the supports of said devices, applicable to obtain the fastening of taies devices or supports (2) to a box (3), is characterized in that it comprises, at least, one part with, at least one flexible part and with at least one distal end (12) and which, once placed in the element to be fastened (2), a first horizontal projection (L) between the joining point of the hook (1) with the element to be fastened (2) and the distal end (12) of the hook (1) is greater than a second horizontal projection (L2) between the same joining point of the hook (1) with the element to be fastened (2) and the internai wall ofthe box (3).

2. Flexible box-fastening hook, according to claim 1, wherein in the distal end (12) of the hook (1) it contemplâtes the existence of fastening means (14) for the improvement of the grip between the hook (1) and the internai walls of the box (3).

3. Flexible box-fastening hook, according to claim 2, wherein the fastening means (14) in the distal end (12) of the hook (1) are formed by at least one gripping claw.

4. Flexible box-fastening hook, according to claims 1 to 3, wherein it is integrated in the element to be fastened (2) for which it is intended.

5. Flexible box-fastening hook, according to claims 1 to 3, wherein the part constituting the hook (1) is independent of the element to be fastened (2).

6. Flexible box-fastening hook, according to claim 5, wherein it consiste of a part bent in several sections comprising, at least, a joining section (11) designed to be joined to the element to be fastened (2) and, at least, one distal end (12) joined to said joining section (11).

7. Flexible box-fastening hook, according to claim 6, wherein it contemplâtes a single distal end (12).

8. Flexible box-fastening hook, according to claim 6, wherein it contemplâtes a several distal ends (12) joined together by a single joining section (11), a joining section (11) designed to be joined to the element to be fastened (2).

9. Flexible box-fastening hook, according to any of daims 1 to 8, wherein the distal end (12) has a recess (19) suitable for the insertion of a tool (h) to perform the extraction operation.

10. Flexible box-fastening hook, according to any of daims 1 to 9, wherein the distal end (12) has a gripping surface (15) to unfasten the hook (1) and easily extract the element to be fastened (2) from the inside of the box (3).

11. Flexible box-fastening hook, according to daim 10, wherein in said gripping surface (15) there is an orifice (16) suitable for the insertion of a tool (h) to perform the extraction operation.

12. Flexible box-fastening hook, according to daims 5 to 11, wherein as fastening means between the element to be fastened (2) and the hook ( 1 ), the joining section (11) ofthe hook (1) has at least one orifice (17).

13. Element to be fastened by the hook characterized in claim 11, wherein has at least one opening so that the gripping surface (15) may hâve more space in the unlocking action of the hook (1).

14. Element to be fastened by the hook characterized in daim 12, wherein it has at least one lug (18) for its introduction in the corresponding orifice (17) of the joining section ( 11) of the hook (1).