DE3233482C2 - Roller bearing spring housing for roller shutters, rolling grilles and the like. - Google Patents

Abstract

In a roller bearing spring housing for shutters, rolling grilles or the like. the assembly and interchangeability of the flat spiral spring (20) are to be made simpler and, in particular, less dangerous. For this purpose, the outer end of the flat spiral spring (20) is designed as an eyelet (23) through which a retaining pin (24) passes, which is loosely inserted into holes in the bottom (14) and cover (2) of the roller bearing spring housing. The flat spiral spring (20) remains permanently enclosed within a band ring (31) that is not connected to the housing.

Description

The hook 22 connected to the tensioning tube 18 is suspended. The outer end of the flat spiral spring is an eyelet 23 formed, which is penetrated by a pin 24, which with an end 25 (see FIG. 3, above) with a stepped diameter into a hole 26 in the bottom of the pot 14 is inserted and on the other end 27, which is also offset in diameter, the cover flap 2 with a matching hole 28 is pushed The two shoulders 29,30 of the retaining pin 24 sit in the mounted State on the pot bottom 14 and on the lid flap 2, se that the retaining pin is axially immovable is fixed The flat spiral spring is inside a closed Bandage ring 31 arranged, which is also after the assembly of the flat spiral spring in the roller bearing spring housing remains

For this purpose 2 sheets of drawings

10

20th

25th

30th

35

40

45

50

55

60

65

Claims (3)

1 ■ .... 2 On the one hand, the assembly is considerably reduced. simpler because the outer end of the flat spiral spring is now no longer in the radial direction and therefore no longer L roller bearing spring housing for roller shutters. Rolling grilles within the possible »landing level« of the spiral and dgL, consisting of a two-part, a 5 spring is mounted. Rather, the attachment takes place Pot and a cover flap having the outer end of the flat spiral spring now axially housing that goes from one running in two roller bearings to the spiral spring coil by simply inserting the retaining pin Clamping tube is penetrated, on which the inner end is inserted through the outer spiral spring eyelet and de a flat spiral spring is attached, the outer end of which into a hole in the bottom of the pot and the other end into End is held on the cast housing, thereby another hole is inserted in the lid flap, indicates that the outer end of the spiral When tensioning the flat spiral spring on the winding shaft Flat spring (20) designed as an eyelet (23) and the eyelet can now be attached to the roller shutter or the like nem screw bolt or retaining pin (24) penetrated swivel the retaining pin and focus on the respective drawing direction. is, which set with its ends (25, 27) in each one direction of the spring kink-free, so that the at Hole (26) in the bottom of the pot (14) and a hole (28) in which one of the Ceiling bracket (2) is inserted, screwed flat spiral spring, otherwise existing buckling 2. Rolling bearing spring housing according to claim 1, and the risk of breakage is now avoided characterized in that the flat spiral spring (20) According to a preferred embodiment of the memory half one, the flat spiral spring cannot be connected to the housing (1) within one which bandage ring (31) is permanently enclosed 20 bandage ring connected to the housing remains 3. Rolling bearing spring housing according to claim 1 or be bordered. In general, spiral flats-2, characterized in that the retaining pin (24) on the one of the manufacturing companies already within a its ends is offset in diameter and supplied with Bandagewnges, which was previously used for assembly one shoulder (29, 30) on the base of the soiral flat spring on the housing pot can be removed (14) and the lid flap (2) is seated 25 had to. According to the invention, the flat spiral spring on the other hand, together with the bandage ring in the housing pot inserted, and then the inner end of the spiral spring hooked onto the clamping tube and the outer, loop-shaped end is also fixed to the pot by means of the retaining pin The invention relates to a roller bearing spring housing for 30 in the event of a break the pieces of the spiral flat roller shutters, rolling grilles and the like, consisting of a two-spring held within such a bandage ring, parts, a pot and a cover flap, so that a change of Flat spiral spring simple and the cast housing, which can be made safely by one in two roller bearings,
running clamping tube is penetrated, on which the- Finally, according to the invention is still provided The outer end of a flat spiral spring is attached, the appearance of which is that the retaining pin at its ends has a diameter ßeres end is held on the cast housing. is set off and each with one shoulder on the In the case of a known roller bearing spring of this type, the bottom of the pot and the lid tab are seated,
housing (DE-PS 8 48 613) is the outer end of the spiral The object of the invention is hereinafter Flat spring attached directly to the shell of the pot based on a Ausfühschraubt shown in the drawing. But this requires very cumbersome and also 40 approximately example described in more detail. In the drawing very dangerous assembly work, as the spiral flat shows the under high tension in the housing pot one Fi g. 1 shows a plan view of an assembled roller bearing to be built. When assembling the spiral spring housing, with the cover flap removed,
derwickel - with the exception of the outer turn - Fi g. 2 see a top view of an associated cover member clamped together 45 by means of pliers-like tools, that only after screwing on the outer win- F i g. 3 the roller bearing spring housing in side view may be loosened on the housing shell. The roller bearing spring housing consists of a Such work is only possible by a specialist fitter and aluminum gravity die-cast pot 1 and one also provides for this because of the high pretensioning cover flap 2. The pot shell 3 is geforce on two Such flat spiral springs pose a high risk of danger ment is. 4.5 provided, in which the remote ends 6.7 of the The object of the invention is to insert a cover flap 2, after which the cover pieces To create roller bearing spring housing in wel- see 2 is clamped by means of screws 8.9, which the brace the flat spiral spring in simple, harmless holes 10, 11 in the lid flap and in Can be assembled and in the event of wear or breakage 55 the threaded holes 12, 13 are screwed into the pot casing can also be replaced by a non-specialist fitter. will. In addition, the fastening point of the outer pot base 14 and the central to a ring 15 The end of the flat spiral spring are designed so that the extended cover flap 2 each have a central one this hole when opening and lowering the shutters, rolling grilles and each carry a central hole around the or the like. No noticeable wear 60 closing roller bearing 16,17 for mounting a subject. the clamping tube penetrating the roller bearing spring housing To solve this problem, according to the invention, the present 18 is provided, which is connected in a known manner to the winding shaft seen that the outer end of the flat spiral spring is to be wedged as a roller shutter, rolling grille or the like. Eye formed and by a screw bolt or both roller bearings 16, 17 are each-retaining pin towards the outside is penetrated, which is abjeweils with its ends in 65 Weil by a screwed-on ring 19a, 196 a hole in the bottom of the pot and a hole in the closed. Lid tab is inserted. There is a flat spiral spring in the roller bearing spring housing Through these measures, a number of advantages 20 are accommodated, the inner end 21 of which at one with