ES1294101U - CLAMPING DEVICE FOR RELEASEABLE COUPLING OF LAMINATE SUBSTRATES (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Fastening device (1) to releasably couple at least two first (2b) and second (4b) laminar substrates, characterized in that it comprises an insert (13) intended to be fixedly coupled to the first laminar substrate (2b), a fastener (15a) attachable to the second laminar substrate (4b) and to the insert (13), where, in an operating condition of the fastening device (1), the fastener (15a) is attached to the second laminar substrate (4b) and to the insert (13) holding the second laminar substrate (4b) against the first laminar substrate (2b). (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

FIXING DEVICE FOR RELEASEABLE COUPLING OF

SHEET SUBSTRATES

OBJECT OF THE INVENTION

The object of this invention application is the registration of a fastening device that allows releasably coupling at least two laminar bodies.

More specifically, the invention proposes a fastening device to releasably couple together at least two laminar substrates of composite material, maintaining the integrity of said laminar substrates, without affecting the areas where the coupling occurs, as well as having a stable union. that allows to easily and quickly hold the laminar substrates and enable their disassembly only when required.

STATE OF THE ART

Couplings or fasteners for releasably fixing bodies made of composite material are widely known in the state of the art.

There is a problem related to this type of coupling when the bodies of composite material are of the laminar type, such as plates a few millimeters thick. Due to the nature of the composite material, the joints in this type of laminar elements tend to be fragile, which compromises the integrity of the coupled elements, for example, splintering or fracture of the sheet in the area where the coupling is made.

Therefore, the releasable couplings for this type of sheets of composite material are susceptible to improvements in terms of the fastening capacity of said coupling and of guaranteeing the structural integrity of the coupled elements.

DESCRIPTION OF THE INVENTION

In order to respond to the needs detected in the state of the art, the present invention provides a fastening device designed to join two plates or laminar substrates in a releasable or removable way, as described in independent claim 1.

In accordance with the foregoing, the invention proposes a fastening device, device hereinafter, which allows releasably coupling at least two first and second laminar substrates, these substrates preferably being made of composite material, where the device comprises an insert intended to be coupled fixedly on the first sheet substrate (or on the second substrate), a fastener attachable to the second sheet substrate (or the first substrate) and the insert, where, to hold the two plates, the fastener is attached to the second sheet substrate and it then engages the insert (with the insert engaged in the first sheet substrate), affixing the second sheet substrate against the first sheet substrate by securing the fastener to the insert.

Although, as mentioned above, the insert is attachable to the first substrate, once attached, it is preferable that said attachment be fixed, therefore, an adhesive means is available for attaching the insert to said first laminar substrate, where preferably this adhesive is an epoxy resin which causes a permanent fixation of the insert on the substrate.

Given the nature of the invention that allows the releasable coupling of the laminar substrates of composite material, the coupling between the insert and the fastener is of the threaded type, the female of the threaded coupling being arranged in the insert and the male in the fastener. Counter coupling arrangement is possible.

In addition to the above, in the second laminar substrate, a hole is provided for the coupling of the fastener, the latter having a suitable head or portion to seat against the second laminar substrate in the coupling of the laminar substrates.

On the other hand, the insert is star-shaped, where the points of said star are configured to prevent the insert from turning. In this sense, the first laminar substrate has a perforation or cavity configured for the fixing of this star shape of the insert, so that, when the fastener is threadedly coupled to the insert, it The latter does not rotate, guaranteeing the coupling fit between these two parts and the laminar substrates.

Also, a sleeve engageable with the insert is provided, where the fastener is engageable with said sleeve, said sleeve carrying the female portion of the threaded coupling. The sleeve is coupled in such a way that, once placed in the insert, there is no disengagement and no relative movement between these elements.

On the other hand, the person skilled in the art will see it as obvious that, to couple the laminar substrates, as many fastening devices as necessary can be used.

BRIEF DESCRIPTION OF THE FIGURES

The above and other advantages and characteristics will be more fully understood from the following detailed description of some examples of embodiment with reference to the attached drawings, which should be considered by way of illustration and not limitation, in which:

- Figure 1 is an assembled exploded perspective view of the insert of the fastening device of the invention.

- Figure 2, is a sectional view where the clamping device of the invention is shown in application to fix two laminar substrates.

DESCRIPTION OF A PREFERRED EMBODIMENT

Numerous specific details are set forth in the following detailed description by way of example to provide a thorough understanding of the relevant teachings. However, it will be apparent to those skilled in the art that the present teachings can be practiced without such details.

As seen in figures 1 and 2, the present invention provides a fastening device (1), device (1), designed to releasably couple first (2b) and second (4b) laminar substrates, where the device (1 ) comprises an insert (13) intended to be fixedly coupled through an adhesive means (12b), for example, an acrylic foamed adhesive tape, on the first laminar substrate (2b); where, as seen in figure 1, the insert (13) has a star shape with rounded points, four points in the embodiment illustrated in figure 1, which prevents the insert (13) rotates in relation to the first laminar substrate (2b), when it is coupled to the latter.

As can be seen in Figure 1, the insert (13) comprises a plate portion (13A) that rests against the first laminar substrate (2b) and in which the adhesive medium (12b) is placed.

On the other hand, the star shape is a portion of the insert (13) that projects oppositely from said portion of the plate (13A), therefore, in the first laminar substrate (2b) a recess or cavity is made that allows the coupling of this star-shaped portion.

Likewise, a sleeve (14) provided with a female thread is attached to the insert (13) to allow the threaded coupling of a fastener (15a) with a male thread, where this fastener (15a) is attached to a hole made in the second substrate laminar (4b), resting on the latter by a head (15b).

Therefore, to carry out the coupling between the first (2b) and second (4b) laminar substrates, the fastener (15a) is coupled to the second laminar substrate (4b) and then is threadedly coupled to the sleeve (14) in a manner that, at the end of the coupling, the head (15b) of the fastener (15a) presses the second laminar substrate (4b) against the first laminar substrate (2b). To uncouple them, the reverse process must be carried out.

As previously mentioned, the advantages of the device (1) are better developed in the coupling of laminar substrates of composite material, for example, carbon fiber, fiberglass, Kevlar, among others. However, the person skilled in the art will understand that it is applicable to other types of laminar substrates with similar structural characteristics.

Claims (7)

1. Fastening device (1) to releasably couple at least two first (2b) and second (4b) laminar substrates, characterized in that it comprises an insert (13) intended to be fixedly coupled to the first laminar substrate (2b ), a fastener (15a) attachable to the second laminar substrate (4b) and to the insert (13), where, in an operating condition of the fastening device (1), the fastener (15a) is attached to the second laminar substrate (4b) and to the insert (13) holding the second laminar substrate (4b) against the first laminar substrate (2b). Device according to claim 1, where the insert (13) is star-shaped, where the tips of said star-shape are configured to prevent the insert (13) from turning in relation to the first laminar substrate (2b). Device according to any of the preceding claims, comprising an adhesive means (12b) configured for coupling the insert (13) to the first laminar substrate (2b). 4. Device according to the preceding claim, where the adhesive medium (12b) is an epoxy adhesive. 5. Device according to any of the preceding claims, where the coupling between the insert (13) and the fastener (15a) is of the threaded type, the female of the threaded coupling being arranged in the insert (13) and the male in the fastener (15a). ). Device according to any of the preceding claims, comprising a sleeve (14) attachable to the insert (13), where the fastener (15a) is attachable to said sleeve (14). 7. Device according to any of the preceding claims, where the first (2b) and second (4b) laminar substrates are made of composite material.