This application claims the benefit of and priority to Italian Patent Application No. MI2010U 17, filed Jan. 28, 2010, which is incorporated by reference herein in its entirety
In the technical sector relating to the manufacture of switchboards for the wiring of electrical installations, terminal blocks can be used that are designed to be mounted on corresponding support rails and to provide frontal access to the means—typically of the screw type—for retaining the electrical connection wires that form the electric circuit. The increasing complexity of electric switchboards can result in the need to provide each terminal block with a corresponding identification label that should be frontally visible so that it can be read by the user.
One or more embodiments described herein relate to a switchboard terminal block provided with a label-holder seat, a label for said seat, and a terminal block/label assembly. Preferably, the terminal block and the label should be easy and inexpensive to produce and assemble. Additionally, with regard to the label, it should be able to be made as a continuous strip that can be easily divided. These results can preferably be achieved using one or more embodiments of a switchboard terminal block that includes a seat for a label and a label for said terminal block.
Embodiments of the invention can provide a terminal block for electric switchboards that has a suitable front seat for containing a label, and a corresponding label, which are able to provide easy and stable mutual engagement/disengagement, while having the properties of being safe, preventing accidental removal of the label, and ensuring good visibility by the user.
In general, in an aspect, embodiments of the invention may provide a switchboard terminal block including a body including a side face and a front side, the body defining a seat, the seat being configured to receive a label, wherein the seat includes a top edge and a bottom edge formed in the manner of a respective tooth, each tooth comprising a corresponding undercut towards the inside of the seat, such that the undercut forms a relief extending in the vertical direction on the front surface of the seat, and wherein the seat is open in the transverse direction for insertion of a label from one side or the other.
Implementations of the invention can provide one or more of the following features. Each tooth of the seat extends substantially widthwise in the transverse direction of the seat. The teeth of the seat are disposed facing each other and have a rounded edge. The relief is disposed in a central position with respect to the transverse direction. The terminal block further includes an opening for communication between an exterior and a top inner part of the seat.
In general, in another aspect, embodiments of the invention may provide a label for a corresponding terminal block including a top edge and bottom edge shaped so as to form a respective projection in the vertical direction, in that the dimensions of the label are substantially the same as those of the corresponding seat of the terminal block and in that an inner front face of the label forms a cavity extending in the vertical direction and having a depth substantially corresponding to the height of the relief on the seat of the terminal block.
Implementations of the invention can provide one or more of the following features. The seat extends substantially over the entire width in the vertical direction of the label. The top edge and bottom edge extend substantially along the entire width in the transverse direction of the label. The label comprises a flat sheet-like material. The label comprises paperboard.
These and other capabilities of the invention, along with the invention itself, will be more fully understood after a review of the following figures, detailed description, and claims.
As shown in
Preferably the teeth 21, 22 facing each other have a suitably rounded edge 21a,22a. The front surface 20c of the seat 20 can also include a relief 25 extending in the vertical direction Z-Z and preferably arranged in a central position with respect to the transverse direction Y-Y. On the end edge of its top surface (according to the layout shown in
As shown in
As shown in
As shown in
It is also possible to provide labels without a recess 35 since the force applied by the relief 25 on the label can produce an elastic deformation which creates a reaction in the longitudinal direction X-X in the region of the teeth 21,22 and friction in the transverse direction Y-Y on the protrusion itself such as to retain the label stably inside the seat.
It is therefore clear how the terminal block and the label according to the invention can be easy and inexpensive to produce and can form an assembly in which the label may be easily applied and extracted, while being positioned in a stable and therefore safe and reliable manner. In addition, the particular constructional form of the label is such that it may be made of flat sheet-like materials which are commercially available and of any material such as paperboard or the like, thus reducing significantly the production and storage costs.
Other embodiments are within the scope and spirit of the invention. Features implementing functions may be physically located at various positions, including being distributed such that portions of functions are implemented at different physical locations.
Further, while the description above refers to the invention, the description may include more than one invention.
Number | Date | Country | Kind |
---|---|---|---|
MI20100017 U | Jan 2010 | IT | national |
Number | Name | Date | Kind |
---|---|---|---|
3753216 | Johnson et al. | Aug 1973 | A |
3824553 | Glover et al. | Jul 1974 | A |
5080607 | Cristescu | Jan 1992 | A |
5419715 | Laveissiere | May 1995 | A |
5594206 | Klas et al. | Jan 1997 | A |
5735708 | Arnett et al. | Apr 1998 | A |
6421941 | Finke et al. | Jul 2002 | B1 |
6729902 | Martich | May 2004 | B2 |
7353629 | Caveney et al. | Apr 2008 | B2 |
Number | Date | Country |
---|---|---|
2914192 | Oct 1980 | DE |
20303475 | May 2003 | DE |
102008009986 | Jul 2009 | DE |
1593558 | Jun 1970 | FR |
Entry |
---|
European Search Report from EP11121225, dated Apr. 14, 2011. |
Number | Date | Country | |
---|---|---|---|
20110183542 A1 | Jul 2011 | US |