Movable or removable closures – Mounted for optional movements – Pivot mounted on sliding member; e.g. – slide-stile
Patent
1995-04-13
1997-01-28
Kannan, Philip C.
Movable or removable closures
Mounted for optional movements
Pivot mounted on sliding member; e.g., slide-stile
E05D 1522
Patent
active
055968422
DESCRIPTION:
BRIEF SUMMARY
The present invention concerns a system as defined in the preamble to Claim 1.
In prior art a sliding element system is known comprising a substantially vertical sliding element having an upper side and a lower side, parallel in relation to each other. The system further comprises an elongated and box-like upper guide section, located adjacent to the upper side; an elongated and box-like lower guide section, located adjacent to the lower side; and guide wheel sees, connected to the upper side and the lower side of the sliding element and said guide wheel sets comprising at least one horizontal wheel set. Such a horizontal wheel set comprises a vertical wheel axle, affixed to the upper side, and a horizontal wheel, rotatably carried on the wheel axle so that its plane of rotation is horizontal. The guide wheel sets are disposed to run in guidance of the guide sections, inside these. The system further comprises a hinge arrangement comprising, interlocking with each other, a first coupling element, connected to the wheel axle, and a second coupling element, connected to the upper guide section. The wheel axle serves, after the coupling elements have become engaged, as a hinge axle around which the sliding element can be swivelled. A particular application of a sliding element system of this type is a balcony glass pane system in which the sliding elements comprise a glass panel. In a system of prior art, described in the Finnish patent applications FI-914848 and FI-915100, the sliding element is simultaneously supported by the upper as well as lower guide section in such manner that the sliding element cannot move in any direction other than the sliding direction.
The problem in any system of prior art of said type is that the distance between the upper and lower guide sections and their parallellism must be adjusted with great accuracy by trimming both guide sections. When the sliding element system is a balcony glass system, this need of adjusting both sections, the upper and lower section, may also give rise to a labour safety problem. Installation work of balcony glass panes, on balconies, is usually carried out at great height from the ground, and in order to adjust the upper guide section the fitter has to step on a platform, involving obvious risk of toppling over the railing. This risk is particularly accentuated in winter conditions, when the balcony may be covered with snow and ice. A further problem encumbering the system of prior art is that it comprises a comparatively great number of parts.
The object of the invention is to eliminate these drawbacks.
The object of the invention is specifically to disclose a system which is inexpensive and the parts and components of which are simple as to their construction, and in which fewer components than before are required.
It is further an object of the invention to disclose a system wherein no accurate adjustments of the upper guide section need be done: all the essential adjustments of the system can be done on the lower guide section, whereby the fitter will enjoy better labour safety.
It is still further an object of the invention to disclose a system wherein the sliding element becomes automatically locked at the hinging point to be stationary as the sliding element is being turned open.
The system of the invention is characterized by that which has been stated in Claim 1.
As taught by the invention, the guide wheel sets on the underside are wheel sets carrying the sliding element on the lower guide section, the whole weight of the sliding element resting on the lower guide section. Furthermore, to the lower side is connected a vertical wheel set, comprising a vertical wheel having a diameter smaller than the transversal inside dimension of the lower guide section. The plane of rotation of the vertical wheel is vertical, i.e., coinciding with the plane of the sliding element. The peripheral cross section of the vertical wheel is advantageously round-shaped. The point of contact of the vertical wheel with the lower guide section lies on the same vert
REFERENCES:
patent: 3750334 (1973-08-01), Slaybaugh
patent: 5058321 (1991-10-01), Harbom et al.
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