Assembly of stacked and hinged modules

• US 5,323,478 A
• Filed: 02/22/1993
• Issued: 06/21/1994
• Est. Priority Date: 02/21/1992
• Status: Expired due to Term

• Current Assignee: Mars Actel
• Original Assignee: Mars Actel
• Inventors: Vincent, Alain, Milanowski, Michel
• Primary Examiner(s): Lee, John D.
• Application Number:
  US08/020,976
• Time in Patent Office: 484 Days
• Field of Search: 385/53, 385/134, 385/135, 385/137, 385/147
• US Class Current: 385/135
• CPC Class Codes: G02B 6/4452 Distribution frames
• CPC Class Codes: G02B 6/44524 with frame parts or auxiliary devices mounted on the frame and collectively not covering a whole width of the frame or rack cassettes G02B6/4453
• CPC Class Codes: G02B 6/4454 with splices
• CPC Class Codes: G02B 6/4455 characterised by the way of extraction or insertion of the cassette in the distribution frame, e.g. pivoting, sliding, rotating or gliding

Abstract

The assembly of stacked and hinged modules includes holding and hinging means for holding and hinging the individual modules. Said means are constituted by an assembling and hinging strip mounted and retained directly on a first edge of each module, and having individual hinges for hinging the modules. Application: an assembly of cassettes for optical fibers.

Claims

1. An assembly of stacked and hinged modules comprising:

a plane base support, a plurality of individual modules stacked on said base support, each of said modules being flat and substantially rectangular, and having two large superposable faces and two pairs of opposite peripheral edges, said assembly including a support and holding and hinging means for holding and hinging the individual modules at one edge of one of said pairs of opposite peripheral edges, a first module of said assembly comprising means for fixing said first module to said base support and defining a closed position for each of said other modules of said stack relative to said first module, said support comprising an assembling and hinging strip defined by said stack of modules including firstly, first assembling and retaining means for assembling and retaining said modules substantially against a front face of said strip along said first edge of said one of said pairs of opposite edges, and secondly, individual hinges respectively at a pitch of said stacked modules of said assembly, and wherein on said first one of said pair of opposite edges, each of said modules is equipped with second assembling and retaining means, complementary to said first assembling and retaining means for locking each module to said strip, and wherein said strip includes at least one fixing bracket on said first module for fixing said strip to said base support.

2. An assembly according to claim 1, wherein said modules are cassettes for coiling and interconnecting optical fibers, and wherein each cassette includes four accesses, substantially at four corners of the cassette, for receiving said fibers, and where selected accesses receiving said fibers are those accesses furtherest from the first edge carrying said strip.

3. An assembly according to claim 1, wherein said second assembling and retaining means include a pair of guide catches projecting from the front face of said first edge of each module, and wherein said first assembling and retaining means include pairs of successive side latches defined on said strip in the height direction of the assembly of modules, each pair received in the pair of guide catches of a respective one of the modules.

4. An assembly according to claim 1, wherein, for each module in said assembly, said first and second assembling and retaining means include a recess and at least one corresponding retaining finger received in said recess, one of said means being on a rear face of said strip and at the same pitch as the modules, and the other of said means being on the front face of said first edge of each module.

5. An assembly according to claim 1, wherein said modules include successive elements along said strip, the front face of the strip includes successive abutments extending facing one another on the successive elements of the strip, but being offset angularly by substantially 90°

from one of said elements to the next element, thereby defining an open position about the hinge for the module in question.

6. An assembly according to claim 5, wherein said strip is made of one piece and includes sections of small thickness extending parallel to and spaced apart from one another, constituting said hinges and defining unit lengths constituting said elements, said elements being connected directly to one another by said hinges, and said elements and said modules corresponding to one another individually in said assembly.

7. An assembly according to claim 6, wherein, on the front face of the strip, said strip further includes a series of alternate projections and apertures, one of the projections in each series being on a male one of said elements, and the following aperture in the series in question being on a following female element, with a substantially same angular offset between them as an angular offset between the abutments of said male element and said female element, so as to constitute, by resilient snap-fastening, a stable open position about the hinge for the module in question.

8. An assembly according to claim 7, wherein said abutments project parallel to one another from the front faces of said elements, and have their facing faces chamfered at 45°

.

9. An assembly according to claim 8, wherein each male element includes a first central front recess dividing the abutment of the male element in question in two, and having one of said projections on each of its side edges, and each female element includes a second central front recess, slightly larger in width than said first recess, dividing the abutment of said female element in question in two, and having a pair of resilient inside branches projecting from said second recess, and in each of which is formed one of said apertures.

10. An assembly according to claim 5, wherein said strip is constituted by a plurality of individual ones of said elements assembled together without touching one another by at least one assembling tape fixed to each of said elements and defining said hinges, and said elements and said modules correspond to each other individually in said assembly.

11. An assembly according to claim 10, wherein each individual element has at least one through slot in the height direction of each corresponding module, and said slot receiving and retaining said at least one assembling tape.

12. An assembly according to claim 10, wherein said at least one assembling tape has sections of small thickness parallel to and spaced apart from one another, constituting said hinges.

13. An assembly according to claim 5, wherein said strip is constituted by individual elements fitted together one after another, and each equipped with a pair of cylindrical hinge fingers and a pair of corresponding holes for fitting together successive elements of adjacent modules in said stack and simultaneously defining said hinges, and wherein said elements and said modules correspond to each other in said assembly.

14. An assembly according to claim 13, wherein each of said individual elements fitted together includes a pair of lugs adjacent respective sides thereof and projecting from a front face and a top edge, each of said lugs presenting a shoulder dividing it into two fitting portions, the top portion projecting from the top edge and being substantially resilient, and the bottom portion being rigid on said front face, said bottom portion and said top portion having faces fitting against each other, and having said cylindrical hinge finger and a corresponding hole on the fitting faces.

15. An assembly according to claim 14 wherein each of said abutments is constituted on a respective one of said lugs on a respective one of said elements by an edge of the shoulder between said top portion and said bottom portion, the top edge of said top portion of the following element fitted on the element in question being received against said edge of the shoulder.

16. An assembly according to claim 14, wherein, on the fitting faces of said bottom portion and said top portion, each lug includes a projection on one of said fitting faces, and a first indent complementary to said projection on the other of said fitting faces, with an angular offset between the projection and the indent being substantially the same as the angular offset between the abutments of successive fitted-together elements, and constituting, by resilient snap-fastening, a stable open position for the module about the hinge in question.

17. An assembly according to claim 16, wherein each lug includes a second indent which is complementary to but not angular offset from said projection, which second indent is situated on that one of said top portion and said bottom portion having said first indent.

18. An assembly according to claim 5, wherein the edge opposite from the first edge of each of the modules is equipped identically to the first edge with second assembling and retaining means for selectively mounting said strip on one of the edges referred to as the first hinge edge.

19. An assembly according to claim 18, further including locking devices for locking the modules to one another, said locking devices being mounted individually on the opposite edge from said first hinge edge of each module, and being individually equipped with third assembling and retaining means identical to said first assembling and retaining means provided on said strip.

20. An assembly according to claim 19, wherein each locking device includes a central snap-fastening catch projecting from a front face and from a bottom face of the device, and a corresponding central opening opening out in said front face and in a top face of the device, the central snap-fastening catch of the device mounted on one of the modules being inside a central opening of the device mounted on the following module when the modules are stacked on one another.

21. An assembly according to claim 20, wherein each device further includes a lever for actuating said central snap-fastening catch, which lever is integral therewith and projects from the front face of the device.

22. An assembly according to claim 21, wherein each device further includes a pair of centering fingers projecting from either the top face or the bottom face, and a corresponding pair of centering holes opening out either in the bottom face or in the top face.

23. An assembly according to claim 20, wherein said base support has an opening for receiving the central snap-fastening catch of said first module so as to fix it to said base support.