DE3228725C2 - Length-adjustable temple arms - Google Patents

Abstract

A length-adjustable temple piece consists of a hinge-fixed front part (1) and a headrest part (9) that can be moved therein. The head support part (9) is guided in a U-shaped recess in the front part (1) and, with its fastening screw, penetrates a longitudinal groove (8) made in the front part (1). The screw (12) can be connected to the hinge-side end (32) of the headrest part (9), while the rear end (6) of the front part (1) remote from the hinge is provided with a retaining web (18) which from the outside supports the headrest part (9 ) applied. The lateral guidance of the headrest part (9) is therefore caused by the U-leg (9) and by the screw (12) and the Hal te web (18) of the front part (1).

Description

characterized by the following features:

a) The front part (1) has essentially in the overlap area with the headrest part (9) the cross-sectional shape of a U open to the outside in the wearing position and is with a longitudinal groove (8) penetrating the U-web (7).

b) The headrest part (9) lies with a sliding fit between the U-legs (10).

c) The screw (12) rests with its head (13) on the outside (14) of the U-web (7), penetrated with its shaft (15) the longitudinal groove (8) in the direction of the space between the U-legs (10) and is screwed into the hinge-side end (32) of the head contact piece (9).

d) The retaining web (18) is on the rear end remote from the hinge (6) of the front part (1) arranged and acted upon the headrest part (9) of the latter Outside.

2. Spectacle temple according to claim 1, characterized in that that the retaining web (18) is placed on the leg ends (17) of the U.

3. Spectacle temple according to claim 1 or 2, characterized in that the holding web (18) is in one piece is made with the front part (1), in particular cast from metal.

4. Temple arm according to claim 1, characterized in that the width (19) of the longitudinal groove (8) is smaller is than the distance (20) between the U-legs.

5. temple according to claim 1 or 4, characterized in that both ends (21, 22) of the longitudinal groove (8) are closed.

6. Temple temple according to one or more of the preceding claims, characterized in that that the hinge-remote rear end of the front part (1) starting approximately from the hinge-remote end (21) of the Longitudinal groove (8) is provided with a bevel (23) extending in the direction of the holding web (18).

7. The temple piece according to claim 1, characterized in that the screw (12) in an a.n the head part (9) attached threaded sleeve (24) can be screwed in, which has the longitudinal groove (8) on its sides (25) preferably lying approximately penetrated.

8. Temple temple according to one or more of the preceding claims, characterized in that that the width (26) of the headrest part (9) is at least as large as the protruding height (27) of the U-legs (10) over the U-shaped web (7).

9. Temple temple according to one or more of the preceding claims, characterized in that that the length of the U-leg ends (17) on the remote from the hinge The rear end (6) of the front part (1) is enlarged

10. The temple according to claim 9, characterized in that that the surfaces (29) of the U-leg ends (17) in the area (28) of the character remote The rear end (6) of the front part (1) are beveled in the direction of the retaining web (18).

The invention relates to a length-adjustable eyeglass temple with those mentioned in the preamble of claim 1 Features.

In a known from FR-OS 24 52 120 Brillcnbü gel of the type mentioned, the head restraint is in the wearing position on the inside facing the head of the spectacle wearer next to the hinge-rope front part. Both the retaining bar and the threaded hole for receiving the screw are arranged on the inside of the front part at a fixed distance from one another effective in the axial direction of the temple . Inlay of the threaded sleeve containing the threaded hole or the screw head is provided. The unaesthetic image caused by this row of holes is covered from the outside by the inner position of the headrest part and an extension of the front part in the axial direction beyond the threaded sleeve remote from the hinge.
Furthermore, a temple of the type mentioned in a different design from DE-OS 25 53 490 is known, which allows a stepless longitudinal adjustment. This temple is also comparatively bulky, namely very wide. The width in the overlap area between the hinge-fixed front part and the head contact part corresponds, as in the case of the construction mentioned above, to twice the wall width of the front part plus the width of the head contact part.

The invention is based on the object of creating a temple of the type mentioned at the beginning, which is characterized by a special delicacy, but still has a safe, stepless adjustment mechanism contains. This object is achieved by the characterizing features of claim 1.

In the subject matter of the invention, the mutual longitudinal guidance of both parts of the temple is at right angles to its Axialrichtur.g through the two U-legs and the U-web of the cross-sectional shape of the front part. The fixation in an infinitely variable displacement position takes place only at the widely spaced ends of the front part and the head attachment part, namely by means of a delicately designed, externally visible retaining web and the axially distant and concealed inner head of the screw. The width of the BrillcnhügcK corresponds essentially only to the width of the head rest part plus the width of the U-bar per ¹ -hinge-fixed front part.

The identification / calibration feature of claim 3 is used also the avoidance of a technical appearance of the temple. This makes the holding bridge more like «. Ornament then as a technical-functional Tcii hen. It can be trained very gracefully without the Fulfillment of his technical management function

is sought.

Due to the characterizing feature of claim 4, the headrest part can also be in the area of the longitudinal groove rest on the U-web of the front part and thus drive a clean, straight alignment and mounting.

Due to the characterizing feature of claim 5, the longitudinal adjustment path is through the length of the longitudinal groove limited.

The identification feature of claim 6 confers the end of the front part remote from the hinge has a pleasing appearance. It will be an elegant transition to the Headrest part created, which is also the acceptance of the glasses frame equipped with the temple is useful by the wearer of glasses.

The characterizing feature of claim 7 is a clean guidance of the head part in the area favored by its end near the hinge. In addition, this feature serves to ensure the stability of the connection between Headrest part and front part with fixed screw in permanent wearing condition.

By the from DE-OS 25 53 490 known per se characterizing feature of claim 7 is the Screw head not visible from the outside, which in turn increases human acceptance of the subject of the invention serves.

The characterizing feature of claim 8 is a particularly good and durable management of the Headrest part possible without visual impairment. If the width of the headrest part is the oversight height If the U-leg exceeds the U-bar, this also increases the overall width of the temple optically reduced in the overlap area of its front part with the headrest part. Then it says the headrest part with its back facing away from the U-web of the cross-sectional shape of the front part the free ends of the U-webs. It forms on both flanks protruding beyond the U-legs of the headrest part gradations, whose additional ornamental effect also the acceptance of the glasses frame to improve is suitable.

The characteristic of claim 9 in turn serves a dainty, the acceptance of the with glasses frame equipped according to the invention with an increasing effect. This can still go through the characterizing feature of claim 10 can be improved.

The subject matter of the invention is explained using an exemplary embodiment shown in the figures. It shows

! ■ 'i g. 1 is a side view of the hinge-fixed front part of the temple from the side facing away from the human head when it is worn,

F i g. 2 shows a cross section corresponding to the cutting line 11-11 in FIG. 1 through the front part of the temple,

Fig. 3 is a side view corresponding to FIG Headrest part with hatched cross-sectional shape of the same,

F i g. 4 shows a horizontal section through the central longitudinal plane of the longitudinal groove of the front part fixed to the hinge according to FIG the line! V-IV in FIG. 1,

Fig. 5 is a plan view of the headrest part of the temple and

K ι g. b an illustration of the screw.

The I ι g. 4–6 are in relation to each other like an explosion / calibration posed.

The hinge-fixed front part 1 is provided with a hinge arm 2 on its left F.ndc. This serves / well-known, swiveling connection with a spectacle lens holding part, not shown. The pivot axis 3 runs centrally through the through hole 4 of the hinge eye 2.

The front part 1 has in its area between the hinge end denoted as a whole by 5 and the> overall with 6 designated back end the cross-sectional shape one U (FIG. 2) lying in the glasses installation position and is with a U-web 7 penetrating Longitudinal groove 8 is provided.

to The headrest part 9 is not shown, but from the exploded view of Fig. 4-6 easily recognizable with a sliding fit between the U-loop 10. It is guided with its flanks 11 between the U-legs 10 so as to be longitudinally displaceable.

The screw 12 lies with its head 13 on the outside 14 de «; U-web 7 on. She interspersed with hers Shank 15, the longitudinal groove 8 in the direction of the space between the U-legs 10 and is in the hinge-side The end 16 of the headrest part 9 is screwed in. The front part 1 has at its remote from the hinge Back end 6 connects the leg ends 17 of the U to one another, in particular one placed on them, the inset headrest part 9 bridging holding web 13.

The holding web 18 is made in one piece with the front part 1, in particular injection-molded from plastic. the Width 19 of the longitudinal groove 8 is smaller than the distance 20 between the U-legs 10. The ends of the longitudinal groove 8 are designated by 21 and 22.

The hinge-remote rear end 6 of the front part 1 is - starting approximately from the hinge-remote end 21 of the Longitudinal groove 8 - provided with a bevel 23 running in the direction of the retaining web 18.

The screw 12 is in a threaded sleeve 24 made of metallic material and attached to the head contact part 9 can be screwed in, which approximately penetrates the longitudinal groove 8 resting on its sides 25. The screw head! 3 is arranged on the side of the temple arm facing the hinge axis 3.

The width 26 of the headrest part 9 is at least as large as the protruding height 27 of the U-legs 10 over the U-web 7. The U-leg ends 17 on the remote from the hinge The rear ends (i of the front part 1 are extended in the direction of the retaining web 18 (area 28). The surface 29 of the U-leg ends 17 in the area 28 of the rear end 6 of the front part 1 remote from the hinge is in the direction beveled on the retaining web 18 (bevel 30). Between the retaining web 18 and the rear end 31 of the U-bar 7 and the holding bar 18 is such a distance that is effective in the longitudinal direction of the temple left that one for the slide, the hinge-side end 32 of the headrest part 9 is sufficient Durchtrittsiiuerschniu is available. As a result, the hinge-side end 32 of the headrest part 9 can jointly with the threaded sleeve 24 easily through the opening between the retaining web 18 and the rear end 31 of the U-web 7 can be pushed through from right to left with reference to the figure representation. Then the coulter-side end 32 is pivoted in the direction of the front part 1 that the sleeve 24 is in the longitudinal groove 8 is inserted. The headrest part 9 then assumes a parallel position to the front part 1. It lies with his Fknke or Seke 33 on the inside 34 of the U-piece b5 7 up. Then from the inside of the front part 1 the screw 12: screwed into the threaded sleeve 24 and thus the head contact part 9 in the desired displacement position fixed in relation to the front part 1.

5 Item number list

1 front part

2 hinge eyes

3 swivel axis 5

4 through hole

5 hinge ends

6 back end

7 U-shaped web

8 longitudinal groove ok

9 headrest part

10 U-legs

11 Hanke

12 screw

13 head 15

14 outside

15 sound

16 screw end

17 U-leg endc

18 retaining bar 20

19 width

20 distance

21 end

22 end

23 bevel 25

24 threaded sleeve

26 width

27 Standover height

28 area 30

29 surface

30 bevel

31 end

32 end

34 inside

1 sheet of drawings

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Claims (1)

Patent claims: 1. Length-adjustable temple with a hinge-side front part (1) and a - mounted thereon so as to be longitudinally displaceable by means of a retaining web (18), - Can be fixed axially in different shifting positions and - by an inside facing the head of the spectacle wearer in the wearing position screw-in screw (12) securable headrest part (9),