DE1757947C

DE1757947C - Self-opening umbrella

Info

Publication number: DE1757947C
Application number: DE19681757947
Authority: DE
Inventors: Wolfgang Dipl Ing 5672 Leichhngen Uthemann
Original assignee: Rosenkaimer GmbH, 5672 Leichhngen
Filing date: 1968-06-29
Publication date: 1973-05-10

Description

schiebbar, an dem die Hilfsstreben 3 gelenkig gelagert sind. Diese Hilfsstreben 3 greifen an Hauptstreben 4 an, die einerseits mit den Dachstangen gelenkig verbunden sind und andererseits an einem Kronenteil 5 α eines Hauptschiebers 5 angelenkt sind. Zwischen dem Hilfsschieber 2 und dem Hauptschieber 5 ist eine Schraubenfeder 6 vorgesehen, wobei der Hauptschieber und der Hilfsschieber in Glockenform ausgebildet sein können. In dem Schirmstock 1 ist eine Stockfeder 7 untergebracht, die in einer Ausnehmung 8 des Hilfsschiebers 2 eingreift. Mittels einer abgefederten Drucktaste 9 kann der Hilfsschieber aus der Arretierstellung durch die Stockfeder 7 gebracht werden.slidable, on which the auxiliary struts 3 are articulated. These auxiliary struts 3 engage main struts 4, which on the one hand are articulated to the roof poles and on the other hand are hinged to a crown part 5 α of a main slide 5. A helical spring 6 is provided between the auxiliary slide 2 and the main slide 5, it being possible for the main slide and the auxiliary slide to be designed in the shape of a bell. A stick spring 7, which engages in a recess 8 of the auxiliary slide 2, is accommodated in the umbrella stick 1. By means of a spring-loaded push button 9, the auxiliary slide can be brought out of the locking position by the stick spring 7.

Zur Veränderung der Kraftwirkung der Feder 6 dient ein verstellbarer Federanschlag 10. Dieser besteht aus einem Gewindering, der in ein Innengewinde 11 der Hülse des Hauptschiebers S mehr oder weniger tief eingeschraubt werden kann. Zur einwandfreien zentralen Führung der Schraubenfeder 6 in dem Hauptschieber 5 und dem HLf sschieber 2 sind diese Schieber an den sich gegenüberstehenden Stirnseiten mit vorstehenden. Kragen 5 b und 2 α versehen. In geschlossener Stellung des Schirmgestells können diese Kragen frontal gegenüberstehen.An adjustable spring stop 10 is used to change the force effect of the spring 6. This consists of a threaded ring which can be screwed more or less deeply into an internal thread 11 of the sleeve of the main slide S. For proper central guidance of the helical spring 6 in the main slide 5 and the HLf s slide 2, these slides are protruding on the opposite end faces. Collar 5 b and 2 α provided. In the closed position of the umbrella frame, these collars can face each other frontally.

Bei der Ausführungsform der Fig. 2, bei der gleiche Teile mit denselben Bezugsziffern wie bei dem Beispiel der Fig. 1 versehen sind, ist der Hilf βίο schieber 2 a!s Klinkenschieber ausgebildet. Auf dem Hilfsschieber ist eine Klinke 12 um die Achse 13 schwenkbar gelagert Die Arretierung des Hilfsschiebers2 an dem Stock 1 erfolgt durch Einfallen der Klinkennase 12 α in eine Ausnehmung 13 des Stockteils 1. Die vorstehenden Kragen 5 c und 2 b an dem Hauptschieber.und dem Hilfsschieber sind zueinander teleskopartig zusammengreifend gestaltet. Auf diese Weise werden darüber hinaus auch die Schieber zusätzlich zentriert.In the embodiment of FIG. 2, in which the same parts are provided with the same reference numerals as in the example of FIG. 1, the auxiliary slide 2 is designed as a pawl slide. On the auxiliary slide a pawl 12 is pivotably mounted about the axis 13. The locking of the auxiliary slide 2 on the stick 1 takes place by the latch nose 12 α falling into a recess 13 of the stick part 1. The protruding collars 5 c and 2 b on the main slide Auxiliary slides are designed to interlock telescopically with one another. In this way, the slides are also centered.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

1 2 adjust counterforce. The self-opening umbrella provided with a spring between the main and auxiliary slides is characterized according to the

1. Self-opening screen, in particular made from the fact that it is used as a spring abutment Umbrella that can be shortened, in which the base piece serving on the umbrella shaft 5 has at least one slide in a main and an auxiliary slide are designed to be displaceable in the direction of the slide axis, which is by means of main or auxiliary struts with det.

the roof pole parts are connected and In this way it is possible to have at least one

between which a spring is arranged, there- counter bearing for the self-opening spring after assembly

characterized in that as 10 days of the screen to be able to adjust to the

Spring abutment serving base piece (10) to have the opportunity to assemble the umbrella,

at least one slide (2, 5) in the direction of which the spring force adapts to the selected shade cover.

Slide axis is adjustable. to be able to. The spring

2. Screen according to claim 1, characterized in that the bias voltage is increased by the stronger one draws that the bottom piece (10) of the auxiliary ig counterpressure of the existing from the screen cover The slide (5) is designed as a threaded ring to overcome the canopy. With the help a mating thread (11) of the slide sleeve slide and / or the main slide can be a interacted, adjustable threaded ring arranged for the spring

3. Screen according to claim 1 or 2, thereby. It is important here that it is indicated at the boarding point that the slide (2.5) at the 20 development of the spring force does not change the outer dimensions of the opposite end faces in slide-slide lengths. When collars (2 a, 5, 6; 2 b, Sc) extending along the thread axis point upwards in the interior of the cylindrical parts of the slide. is arranged, does not change the

4. Screen according to claim 3, characterized in that the outer length of the slide and the stop of the is characterized in that the collar (2 b, 5 c) telescopically 35 auxiliary slide on the screen crown. This means that they remain intertwined. the position of roof poles and struts in the

open position of the umbrella unchanged. The change in the stop for the suspension

only an increase or decrease acts

30 of the spring force as a counterforce to that exerted by the umbrella cover on the opening mechanism Power.

The invention relates to a self-advantageous has the auxiliary slide on his

opening screen, in particular shortenable upper end on a threaded ring with a Umbrella, in which a main counter-thread of the slide sleeve cooperates on the umbrella shaft, and an auxiliary slide are displaceable, which by means of this threaded ring is within the slide sleeve Arrange main or auxiliary struts with the roof pole parts so as not to reduce the length of the slide are related and interfere between which one.

Spring is arranged. So that the suspension is sensitive to the

In an umbrella of the type mentioned, the 40 development of the counter bearing can respond and not suspension, which is otherwise hindered by one or more springs, the effect of the spring force, when closing the umbrella frame z. B. that the spring is biased when compressed. When the slide lock cannot be placed on one side of the umbrella shaft when the slide lock is released, the springs can relax, which means that provision must be made for the spring to initiate automatic opening of the umbrella and to be guided and centered in a wall-free manner. This is done in advance. In the case of these self-opening umbrellas, there is a special need for the slide on the opposite sides to have the necessary spring force collars for the opening of the umbrella frame running in the slide axis towards the lying end face. As a result, the spring remains on the effective counterforce of the screen cover from its entire length between the auxiliary slide and agree. When the fabric cover of the umbrella very much led to the main slide. If it moves constraff, a relatively high spring force is centered on the umbrella pole that surrounds it. For needed. With a generously dimensioned fabric cover further ensuring the concentric position, on the other hand, a weaker spring is sufficient to enable the collars of the open position to be developed in the open position of the spring and the slides. In the latter case, if the spring were to 55 interlock telescopically. It is the strongest dimension, if the stop would be given when opening to ensure that the hardness is done by adjusting the. A spring that is too weak, on the other hand, would result in a change in the spring abutment in the case of an insufficiently dimensioned umbrella cover spring force due to additional or other friction not leading to a complete opening of the umbrella frame and braking moments between the spring and the. So far the spring dimension for the 60 surrounding parts has not been affected,
self-opening umbrellas fixed to a medium standard- Embodiments of the invention are in the

placed. However, this led to the fact that shown in the drawing. It shows
the dimensions of the prescribed umbrella - Fig. 1 shows a self-opening mechanism for umbrellas

related to the automatic opening process according to the invention in longitudinal section and in the scheme affected in one direction or another. 65 and

The object of the invention is to reduce the spring force of FIG.
on the umbrella shaft 1, the auxiliary slide 2 is