US3465477A

US3465477A - Protective device for openable windows of buildings

Info

Publication number: US3465477A
Application number: US681247A
Authority: US
Inventors: Jalmari Virkki
Original assignee: Individual
Current assignee: Individual
Priority date: 1966-11-10
Filing date: 1967-11-07
Publication date: 1969-09-09
Anticipated expiration: 1986-09-09
Also published as: BE706157A; DE1654092A1; NL6715278A; FI40819B; GB1166737A

Description

P 9, 1969 J. VIRKKI 3,465,477

PROTECTIVE DEVICE FOR OPENABLE WINDOWS OF BUILDINGS Filed Nov. 7. 1967 Fla 3 l0 I9 z 2o 9 m 21 I7 I r 2? INVENTOR: j. V/kk OZZMOZAU ATTO LNEBS United States Patent 3,465,477 PROTECTIVE DEVICE FOR OPENABLE WINDOWS OF BUILDINGS Jalmari Virkki, Tuulitie 3, Vantaa, Finland Filed Nov. 7, 1967, Ser. No. 681,247 Claims priority, application Finland, Nov. 10, 1966, 2, 66/66 Int. Cl. A47h 2.1/00

US. CI. 49-54 7 Claims ABSTRACT OF THE DISCLOSURE A protective device for the window of a building includes vertical and horizontal bars which are so pivoted to the hinge edge of the window frame that they remain out of view when the window is closed and are actuated by the opening of the window to be swung across the window opening.

The present invention has reference to a protective device for openable windows of buildings, particularly multistorey buildings, with the purpose of eliminating the possibility of falling out of the window.

Previous art includes many kinds of protective devices intended for openable windows and meant to eliminate the possibility of falling out of the window especially in the case of small children, persons lacking full use of their senses and those engaged in window cleaning or repair work. However, these previously known devices are either fixed "structures of grating or net type, or detachable separate protective devices which are inserted in their place after the window has been opened.

Also some devices have been presented which close the window aperture when the window is opened, but owing to their heavy construction and unwieldiness they have not gained any general use.

The object of the present invention is, accordingly, to develop a new type of positively functioning protective device for openable windows which, on opening the window, is immediately and automatically lowered in front of the window aperture and which in itself constitutes a separate unit, which is readily adaptable for series production.

The following advantages are thus gained: While the Window is closed, the protective device remains out of view, admitting unrestricted vision outwards through the window. The restricting bars of the protective device are immediately lowered in front of the window aperture when the window is opened and are secured at their other ends in recesses in the frame or in fittings mounted on it, precluding any fall out of the window, so that e.g. small children may be safely left at home even by themselves if need be.

The protective device according to the invention is aesthetically completely flawless and it is easy to install even on windows in old houses. The protective device can be mounted either between the panes of double windows or on their outside, depending on the direction in which they open.

One of the embodiments of the invention is described in the following in closer detail, with reference to the attached drawings, of which FIG. 1 presents a protective device according to the invention as mounted on a narrow ventilating window, with the inner window pane removed. FIG. 2 shows a section along the line A- A in FIG. I, in larger scale and with the inner window pane in its place and closed, in which situation the restricting bars are held out of view, and FIG. 3 displays the mechanism of the protective device in opened condition, this protective device having only horizontal restricting bars.

3,465,477 Patented Sept. 9, 1969 In FIG. 1, 1 refers to the window frame'to the side of which adjacent to the window hinges a protective housing 10 for the restricting bars 9 and 17 having a U-shaped cross section has been fixed, the restricting bars 9 being turnably pivoted in this housing on pins 19. The vertical restricting bar 17, again, is turnably pivoted by both ends to the restricting bars 9, by means of the pins 18. The free ends of the horizontal restricting bars are secured in fittings 20 fixed to the frame. To the lower end of the protective housing 10 the actuating mechanism for the restricting bars has been attached, which comprises a slide box 5, in the groove of which the slide 4 moves, governed by the pivoted link 12, which has been pivoted at one end to the lug 11 on the slide and at its other end has been linked by means of the shaft pin 14 With the bracket 13 mounted on the window sash 2, as FIG. 2 indicates.

The horizontally movable slide 4 has been connected by the pivot 7 to the turnable link 6, the other end of which actuates, by means of the pivot pin 8, the lowermost horizontal restricting bar 9, from which the motion is transmitted by the vertical bar 17 to the upper restricting bar 9.

When it is not desired to use the protective device, it can be easily disengaged e.g. by detaching the pivot pin 14.

From FIG. 2 the mode of installation of the protective device can be seen, for which a hole is drilled in the frame 1 for the slide box 5, as well as an oblique bore 15 for the link 12. As is evident from the figure, the restricting bars are completely out of view behind the hinge-side sash moulding when the window is closed.

In FIG. 3 a protective device has been shown in which three horizontal restricting bars 9 have been used, their ends pivoted on the protectivce housing 14) by pins 19 being bent at an angle and each of them pivoted by means of pins 21 to a common connecting rod 22, which transmits the motion of the slide 4 from the lowermost restricting bar to the upper ones. The lower forward edge of the groove in the slide box 5 has been rounded at the point 23 in view of the turning of the link 6.

The actuating mechanism for the restricting bars of the protective device may also be constructed using a rackand-pinion transmission, in which case the rack governed by the slide obtains its motion in corresponding manner by mediation of a pivoted link attached to the hinge-side frame of the window.

A protective device according to the invention may be installed on outward as well as inward opening windows having a frame of timber or metal construction. If in the case of a double window both panes open inward, the protective device is mounted outside the outer pane on the hinge-side part of the frame, and the free ends of the restricting bars will then be secured in protruding fittings mounted on the frame.

The invention is not restricted to the embodiments presented in the foregoing, and it can be modified in various ways within the scope of the claims presented below.

What is claimed is:

1. A protective device in combination with a frame having a window sash hingedly mounted therein, said protective device comprising a first vertical bar fixed to said frame adjacent the hinge side of said window sash, a plurality of vertically spaced bars each pivotally mounted adjacent the ends thereof to said fixed vertical bar and adapted to swing from a folded inoperative position alongside said first vertical bar to a horizontal operative position across the window opening, a second vertical bar pivotally interconnecting said plurality of bars at a point horizontally displaced from their pivotal connection to said fixed vertical bar, and operating means connected between the hinge edge of said window sash and at least one of said plurality of bars whereby said plurality of 'bars swing from the folded inoperative position adjacent the fixed vertical bar when the window sash is closed, to a horizontal operative position bridging the window opening when the window sash is opened.

2. A protective device in accordance with claim 1, wherein the second vertical bar is located substantially in the middle of the first-mentioned bars.

3. A protective device in accordance with claim 1, wherein the second vertical bar is located substantially close to those ends of the first-mentioned bars which are located close to the hinges of said window sash in said operative position.

4. A protective device in accordance with claim 1, comprising fittings carried by the window frame and engaging the free ends of the first-mentioned bars when the first-mentioned bars are in their operative position.

5. A protective device in accordance with claim 1, wherein said first vertical bar comprises a protective housing connected with the window frame and partly enclosing said bars when they are folded in their inoperative position.

References Cited UNITED STATES PATENTS 1,726,188 8/1929 Martin 4954 2,539,345 1/1951 Creech 49-54 FOREIGN PATENTS 76,297 8/ 1961 France. 530,694 12/ 1940 Great Britian.

KENNETH DOWNEY, Primary Examiner U.S. Cl. X.R. 49-114; 160-102