DE2129359C3 - Frame for spectacle lenses with a frame ring that is open on one side - Google Patents

Description

is reached, the screw 19 is fully screwed in, whereupon the key 21 is withdrawn along the bracket 11.

In the case of the FIG. 8 and 9, in which the same reference numerals are used for the corresponding parts, the end 3 a is provided with a coupling block 27, which corresponds to the coupling block 7, and the end 3 6 with a coupling part 35 analogous to part 15 Coupling block 27, a continuous seat 33; .o is provided corresponding to the seat 13, which has a step-like widening 33 α at the top. The block 35 has an extension or pin 37 corresponding to the pin 17, with axial incisions that allow a diameter reduction, and with an extension or a head 37 a, which forms an annular ratchet tooth, which corresponds in its function to the tooth 17 a. A continuous threaded hole in the block 57 and the pin 37 37 a receives a screw 39, which causes the expansion α S, « _a after this uoer Γ BohnS ^{P |} Sa hLais "has been inserted and! SrLn extended part 33abündelyn to the coupling position of the two le.le 27und: toThe closing of the coupling can be done with em« snW ^er ^ | similar to the key 21, and the detinung £ head ^ to secure the burn; w * d by fully screwing in screw 39

"The fastening system described is of

got to. The screw is no other burden
exposed to the stretching forces.

1 sheet of drawings

Claims (4)

1 2 FIG. 4 shows the patent claims in the same representation as FIG. 3: open version immediately before closing; F i g. 5 shows a section along the line V-V of FIG 1. Frame for spectacle lenses with a one-sided Fig. 4; . open mounting ring, the ends of which with coupling 5 Fig.6 shows in the same representation as hg. 5 the elements for closing the ring verse parts immediately before closing the clutch hen are characterized by means of the tool or wrench; that the one coupling element (15, 35) a Fig. 7 shows the parts according to the analogous to Fig.6 expandable pin (17, 37) with ratchet tooth (17 a, closing; 37 a) and the other coupling element an io F i g. 8 and 9 show another embodiment Seat (13, 33) for engaging the stretchable zap of the invention before and after closing. fens as well as an edge (13 a, 33 α), which with reference initially to the m F ι g. 1 with the pin inserted with the ratchet to 7 shown spectacle frame 1 is with 3 one of the open cooperates. designated mounting rings, which are intended to 2. Socket according to Claim 1, characterized in that the spectacle lens 5 is to be framed and held. The ze: hnet that through the pin forming the upper end 3 α of the ring 3 has a coupling-coupling element (15, 35) a threaded hole block 7 with an extension 7 a on which the bracket . runs for a 11 designed as a screw is articulated at 9. The block? shows Expansion pin (19, 39) for the pin. a continuous seat 13 which is approximately tangential 3. Socket according to claim 1 or 2, characterized in that 20 runs to the spectacle lens, the upper edge of which is characterized in that with one of the two dome opening a lower inner edge 13 a of the spectacle temples (11) is articulated. In this embodiment the block 7 is linked. provided with a lower cavity to accommodate the am 4. Socket according to one of claims 1 to 3, lower end 3 b of the socket ring 3 provided, characterized in that the expandable Zap- »5 coupling block to accommodate. fen (37) cylindrical with an annular run- This lower end 3 b has a protruding fenden ratchet tooth (37 a) is formed. Base ISa on, of which an extension or tenon 17 goes out, which is approximately tangential. This extension 17 can be inserted into the seat 13, wherein 30 like the seat 13 in the embodiment shown, it has an approximately rectangular cross-section. The extension 17 has an outwardly jumping one The invention relates to a socket for glasses tooth 17 a, a slot 17 b and at its base ser with a socket ring open on one side, one of which has a recess 17 c , which together form one ends with coupling elements for closing the 35 through opening to the Extension or ring are provided. Cones a certain elasticity and thus a good The invention is based on the object of knowing the resilience of the tooth 17 a bearing Coupling both more stable and easier to admit open leg. Through the base 15 and the and to form closable and the production to pin 17 runs a threaded hole for a simplify. 40 screw 19 that can be screwed in from below. According to the invention, a frame is called the spectacle lens 5 is inserted into the open ring- th type characterized in that the one coupling sets, and then the two ends 3 α and 3 h management element an expandable pin with locking tooth of the ring against each other, the pin and the other coupling element a seat for the 17 in the seat 13 is introduced; In this case, the engagement of the expandable pin and an edge 45 screw 13 is only partially located in the base 15, which is screwed into the sensitive part of the threaded hole when the pin is inserted. Ratchet cooperates. In this way, the pin 17 can be inserted into the seat 13 Advantageously, the peg runs through it until the tooth 17a is higher than the edge forming coupling element a threaded hole 13 a and protrude outward and this overfor an expansion pin designed as a screw for 50 can grip. To the spreading of the tooth 17 a the cone. to effect and to secure the clutch According to a preferred embodiment, the screw 19 is finally screwed in, which causes the eyeglass temples directly with one of the two coupling elements to spread between the two legs of the pin element, in particular with the window forming the seat, and in this way articulated the overlapping of the coupling element. 55 tooth 17 α over the edge 13 α guaranteed. The pin and the seat can have a right- To close the ring and the two domed or square cross-sections. In another advantageous embodiment, a key 21 can be used, the expansion pin is cylindrical and the ratchet tooth has the one, which has a hole 21 α with a subsequent form of an annular circumferential projection, where- 60 Recess 21 b and cam profile 21 c are provided with the seat as a bore in a protruding one. The recess 21b serves to ensure that the part is formed, forming a shoulder, behind key on the only partially screwed-in grips the annular locking tooth. Screw 19 can be moved away. The Nok Embodiments of the invention are shown in the kenprofil 21 c effected in conjunction with the drawings. 65 Edge of the hole 21 α when the key is turned FIGS. 1, 2 and 3 show a front view and in sels 21 from the position according to FIG. 6 into the position two perspective views the closed according to FIG. 7 the closing of the two coupling mounts; parts 7 and 15. If the end position according to FIG. 7