JP4199962B2 - Sunshade for solarium and greenhouse - Google Patents

Abstract

The tensile bands used to apply tension to the sun-blind fabric (5) are elastic over at least part of their length section. The sun-blind fabric is unwound from or wound-up onto a rotary shaft (1) and is guided by lateral guide rails (9). Tensile bands are attached to the front end (4) of the fabric or to a drop-out tube (7). Tensioning devices for making the fabric taught are also provided.

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rotationally driven cloth shaft (roll bar) with a sunscreen, a side guide rail for the sunscreen, and a front end or drop-out rail of the sunscreen. It relates to a sunshade for a solarium (or greenhouse) comprising tensioning straps that engage the rail and a device for stretching the sunscreen.
[0002]
[Prior art]
The diameter of the drawstring winding roll is larger when the sunscreen is wound up than when the sunscreen is unrolled, as is the case with the fabric roll itself. In order to compensate for the different paths that result from different winding diameters, tension elements with spring elements are usually used. This type of spring element complicates assembly and increases manufacturing costs.
[0003]
In order to eliminate this harmful effect, according to DE 10031419, it is conceivable to move the sunshade in the unwinding direction via push straps having a specific hardness.
[0004]
[Problems to be solved by the invention]
From the above, the problem that forms the basis of the present invention is that a tension string is provided, a pulling element is not used, and a visually attractive state is secured without being bent regardless of the position of the sunscreen. It is to enable a configuration to perform.
[0005]
[Means for Solving the Problems]
This problem is solved in accordance with the invention by the fact that the drawstring is at least partially elastically configured in the longitudinal direction in order to provide tension to the sunshade. It is advantageous if the drawstring is attached with a pretension, so that in any case tension is applied to the sunscreen.
[0006]
According to the solution according to the invention, no additional elastic element is necessary, since the pull string itself is constructed with spring elasticity in its longitudinal direction or partly along its length.
[0007]
The pull string may be made of woven, knitted or knitted fabric, has elasticity only in a certain stretch range, and is essentially inelastic after this stretch range is exceeded. Therefore, in the extended state, the transmission (gear) or the motor (motor) is shut off, so that the sunshade can be pulled out tightly (tightly), resulting in wind load, and other When the load is applied, the sunscreen is sufficiently stretched.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings based on preferred embodiments.
The illustrated sunroom awning comprises a fabric shaft (roll bar) 1 having a fabric roll 2 and capable of being driven to rotate. The cloth shaft is driven to rotate in the double arrow 3 direction, that is, in the direction of the upper arrow in FIGS. 1 and 2 for feeding, and in the direction of the lower arrow in FIGS. Is possible.
[0009]
The front end 4 of the sunscreen 5 is fixed in the string groove 6 of the drop rail 7 and is guided through the side guide rails 9 on both sides via one side slide member 8.
[0010]
The elastic tension string 10 is engaged with each slide member 8. The pulling cord 10 is turned 180 ° in the outer end region of the guide rail 9 by using a deflection roller 11, and is connected to the slide member 8 or the drop rail 7 via a string-like body (piping) 12. Yes. A second 90 ° deflection roller 13 is disposed in the inner end region of the guide rail 9. The direction of the pull string 10 can be changed on the deflection / winding roller 14 provided on the side surface of the cloth shaft via the deflection roller. Since the inner end of the pull string 10 is firmly connected to the deflection / winding roller, when the fabric shaft 1 rotates in the feeding direction, tension is applied to the slide member 8 by the pull string, and at the same time, the drop rail 7 and accordingly the sunscreen 5 is tensioned.
[0011]
The elastic pull string 10 is attached with a pretension. As a result, a tensile stress is always applied to the sunshade cloth 5, so that the sunshade cloth is sufficiently stretched and kept in a state of no deflection.
[Brief description of the drawings]
FIG. 1 is a schematic side view of a sunroom sunshade in a retracted state.
FIG. 2 is a diagram of the extended state corresponding to FIG. 1;
FIG. 3 is a schematic plan view of a sunroom sunshade in the extended state.
FIG. 4 is a schematic cross-sectional view of a guide portion of a drop rail.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Cloth shaft 5 Sunshade cloth 7 Drop rail 9 Guide rail 10 Pull string 11, 13 Deflection roller

Claims (2)

Sunroom awning having a rotatable shaft with sunscreen, a side guide rail for the sunscreen, and a pull string that acts as a device for stretching the sunscreen In
The end of the drawstring is engaged with the drop rail, the end of the sunscreen is also engaged with the drop rail,
In order to bring tension to the sunscreen (5), the tension cord (10) is elastic in the longitudinal direction;
The tensile string (10) has elasticity up to a certain extension range , and is inelastic after exceeding this extension range,
Sunroom awning, characterized in that the drawstring is made of woven, knitted or knitted fabric. 2. The tension cord (10) is attached with a pretension.
Sunshade described in.

Images