DK141560B - Control and guide mechanism for objects that can be moved along a rail, for example slats in a blinds for sloping windows. - Google Patents

Description

(11) PUBLICATION 141560 DENMARK <6,) ln, c | 3 E »s o 9/26/1 f (21) Application No. 690/78 (22) filed on 1 Feb. 6. T 978 (23) Race day 1 6 Feb. 1978 (44) The application presented and the disclosure document published on 21st βρί *. 19δ0

DIRECTORATE OF

PATENT AND TRADE MARKET (30) Priority requested from (71) A / S CHR.FABEAS FABRIKER, 5856 Ryslinge, DK.

(72) Inventor: Bjarne Trank jaer, Luneskowej 1¾ $ 656 Ryslinge, DK.

(74) Plenipotentiary in the proceedings:

Patent law firm Magnus Jensens Eftf.

(54) Steering and guiding mechanism for objects that can be moved along a rail, such as slats in a blinds for sash windows. '"

The present invention relates to a guide and guide mechanism for articles, for example slats in a blind for blinds, which articles can be moved along a rail between a position where the articles are arranged at one end of the rail and a position where the articles are evenly distributed along the rail, the articles being interconnected and being moved by pull in the outermost object located furthest from said end of the rail.

Blinds for sash windows differ from other blinds in that they require a special control or guiding of slats and sub-rails to carry these when mounting and lifting. For known blinds, a supporting mechanism is used in the form of either tensioned guide wires or guide rails which are screwed along the side frame of the window.

141560 2

When using guide wires, the blinds of the blind are provided at each end with transverse elongated holes through which a metal wire is passed. The bottom strip is usually provided with swiveling eyes at the ends that slide around the threads. The transverse elongated holes in the slats are preferably latched into the downward facing half of the slats during use so that the supporting point of the slats is in the horizontal center of gravity of the slats. This ensures that the slats are roughly in equilibrium, thereby facilitating adjustment and rotation of the slats.

This control method has two major disadvantages. The stretched metal wires gradually become limp and must be tightened regularly. Furthermore, the venetian blind cannot close tightly, since the necessary relatively small hole - from the bottom to the slab center - prevents a 180 ° rotation of the slats.

When using guide rails, usually aluminum profiles that are screwed into the side frames of the window, the slats are provided with a die cut at both ends. The punch extends from the lower edge of the slats to the slab center. In this case, too, the support points are thus in the center of gravity, thereby facilitating rotation of the slats. The bottom rail is provided with round end pins sliding on the rails at the ends.

This system has the advantage over the guide wire system that the guide rails are stably mounted with screws and that the slats can be rotated freely 180 °. However, both the sub-list and the slats can fall down if the blinds slid obliquely during the lift.

This is extremely easy if the blind is mounted so flat that it can only overcome the frictional resistance ·

An attempt has been made to remedy this disadvantage by a string system running around the frame, so that the sub-list cannot be distorted. However, such a system is very time-consuming to install, and it does not prevent slats, especially slats in the center of the blinds, from falling, as these are not in any way controlled by risers on hoisting.

The object of the present invention is to provide a guide and guide mechanism of the kind in question, but without the disadvantages of guide wires or guide rails.

This is achieved according to the invention by a sliding body which is movable along the rail, which the legs are designed so that it extends so far as to the one end of the rail that all the compacted articles can rest on the body, and thus that the resting objects are lifted free of the rail.

By this design, the objects are not transported by sliding on the rail, on the special sliding wire.

This slides along and is guided by the rail, and the frictional forces save the movement of the objects can therefore be called down, since there is only talk or friction of the play and the ski. This friction may be restricted to appropriate lateral selection, and / or the physician may strangely provided down the rails.

Ted use in the blinds for sloping windows is furthermore achieved an honorable sound transport than by previously known eyesteas.

The use of a sliding blade, which delivers and measures objects one by one, is of course not suitable for blinds. Such a system can be used in the case of ordinary ordinary curtain rods with small curtains cut into rings, where it is costly to supply each ring with wheels for reducing friction.

The invention is explained in the following in connection with the drawing, in which fig. 1 shows a horizontal section through one side of a blind with a guide rail attached to a window frame; FIG. 2 is a sectional view taken along the line A-A per side of the ankle joints packed at one end of the rail; and FIG. 3 sows, one edible lower evenly distributed along the rail.

In FIG. 1, there is shown a guide rail 2 which is screwed to the side frame of a window. A similar rail is screwed into the opposite side not shown. The guide rail, which is preferably an aluminum alloy profile, has, for example, a T-shaped, open sliding groove at the bottom, in which is mounted a sliding alloy 1, preferably of plastic. Play set 1 is attached to the lower frame in a blind and extends to the end of the guide rail where the blinds of the blinds are packed when the blind is raised, so that all the packaged lamellae can rest on play set 1. The height of the slide 1 is thus adapted to the sliding groove in the rail 2, that the slats carried by the play 1 4 141560 are lifted free of the rail. At its front free end, the slide body 1 is obliquely cut so that the front gutter 6 is able to lift the slats free of the rail.

When the blind is raised, as shown in FIG. 2, the slats are packed at one end of the guide rail 2 and rest on the sliding body 1. When the blind is hoisted down, which is done in a known manner by means of a drawbar and / or the effect of gravity, the slats still resting on the body 1 will be guided along the rails 2. until they reach their predetermined position of the riser. Each slat is held in the predetermined position while the sliding body 1 continues toward the other end of the guide rail 2, as shown in FIG. 3 · The slats are thus moved to their predetermined position without sliding directly along the stare rail, and there is no risk of a slat going skewed.

When the blind is raised, the slats will be lifted one by one from the guide rail 2, the slanted end 6 of the body 1 being inserted under the slats. Thus, even during lifting, the slats will slide directly along the guide rail.