Kortenbach Verwaltungs-und Beteiligungsgesellschaft Mbh & Co.

Kortenbach Verwaltungs-und Beteiligungsesellschaft Mbh & Co.

Kortenbach Verwaltungs- Und Betiligungsgesellschaft Mbh & Co.

Kortenbach & Rauh Kommanditgesellshaft

Klaus Stiller

Joachim Seidel

Tilmann Schultes

An umbrella includes an elongated stick for connecting a handle to a cano and an elastic-driven mechanism for controlling operation of the canopy between an open end position and a closed end position by moving a slide mechanism, which is linked to the canopy, relative to the stick. The elastic is set under tension when the canopy occupies one of the end positions to bias the slide mechanism so that the canopy seeks the other end position. A latch releasably locks the slide mechanism when the canopy occupies the one end position.

Self-opening and/or self-closing umbrella

The invention relates to a self-opening topless pocket umbrella having a escopic stick and a collapsible canopy framework arranged radially on the stick in the form of scissor-link folding systems which can be spread out by means of an opening spring and collapsed manually by a slider which is displaceable on the telescopic stick, the respective scissor-link folding system each having a pair of scissor levers, of which an upper scissor lever is linked to the umbrella crown, while the lower scissor lever engages the slider in an articulated manner. In order to make the opening mechanism smoother and to protect the umbrella stick from being scratched as well as, moreover, to design the closed umbrella to be thinner in its cross-section and more pocket-sized, the invention provides that two arms (K', K') of the respective scissor levers (4, 5), together with an intermediate strut (14) arranged between them, form a double lever triangle (D', D'), the intermediate strut (14) engaging at one end on an intermediate crown (C'), which is fixed non-displaceably to the end (1a) of the stick, and engaging at the other end on, or directly adjacent to, the scissor lever cross-joint (6), and that the crown (C') with the joint (7) of the upper scissor lever (4) carries out a free stroke in relation to the intermediate crown (C') when the canopy is opened under the effect of the opening spring (F) stressed between the crown and the telescopic stick (1).

Self-opening topless pocket umbrella

The invention relates to a self opening umbrella having canopy rods (D) wh can be shortened in at least a twofold manner and having a stick (1) which is telescopic in at least two stages and has on it a displaceable slider (2), to which lower struts (3) of the canopy linkage are linked, and having a drive spring (F) for raising the slider and opening the frame. In order to reduce the manual force required when pulling the slider down upon closing the umbrella canopy and also to minimize the sliding friction of the spring on the stick, the spring (F) is to supported with its lower end (F') on a rigid abutment (W) of the stick (1) and acts on a crown (20) which is displaceable axially relatively to the top of the stick.

Self opening umbrella

A shortenable umbrella has a frame with three part canopy-supporting rods 1, D2, D3) which are respectively associated with two interacting parallelogram linkage (P1, P2). A corner of one linkage (P1) is provided by a pin and slot (9,9a) of which the pin passes through a diagonal (Di) of the linkage to a stable over centre position, maintained by radial tension in a canopy cover (18), when the umbrella is opened. The over centre effect is automatically released by spreading of struts (3) at the beginning of closing of the umbrella.

Shortenable umbrella

The invention relates to a collapsible umbrella having at least one pair of anopy rod parts (1,2), which extend alongside one another and are guided so as to be displaceable on one another, within each linkage of the canopy-supporting linkage frame. One of the canopy rod parts (2) is composed of wire, and guided on the other rod part (1) by means of a bight (2e) of the wire which embraces the other rod part and is formed with hooks (2f,2g) which can be spread to allow the bight to be fitted transversely on the other rod.

Folding umbrella frame guide structure

An improvement in self-opening umbrella frames having either a one-piece or elescopic stick and a main slide and an auxilary slide on the stick to operate the a frame-rib structure which is opened automatically by a coil spring compressed between these two slides; the frame-rib structure being closed by pulling down on a tubular grip sleeve journaled for rotation on the stick and extending through the two slides, the grip sleeve having an upper abutment or carrier engaged at the top of the auxilary slide; the grip sleeve being locatable about a 360.degree. circumference by an arresting catch on the umbrella handle at the lower end of the stick; torsional forces generated by the coiled spring during expansion and compression being isolated between the slides and not interferring with operation of the arresting catch while minimizing opening and closing effort of a user of the umbrella.

Clamp for the shaft of a static umbrella

A clamping device of a static umbrella (e.g. the frame of a garden or beach mbrella) has a segment which is flexibly connected to a bush which surrounds an umbrella stick. A handle rotatably mounted in a boss attached to the bush is able to overcome the natural springiness of the segment to move it towards the umbrella stick so that a clamping cheek of the segment holds the umbrella stick in position relative to a base tube. With this construction, the device need have no longitudinal split, which would expose the mechanism to the effects of the weather, and the mechanism is enclosed, thereby preventing the umbrella stick or users from being hurt on the sharp corners and edges of the mechanism.

Clamp for umbrella stick

A shortenable umbrella having a telescopic stick, two lowermost parts (2a) of which are latched in their extended position by a spring hook (20). The latch is overridden by the final downward movement of a slider (8) upon bundling the framework and canopy around, and compressing them towards, the stick, whereby the slider is received within a hollow handle (1).

Shortenable umbrella having a telescopic stick

A mechanism for releasing the slider (4) of an umbrella frame, has a trigger sleeve (8), which cooperates with a locking member (6) of the slider and is axially movable in or on a handle (2) of the umbrella against spring action to move the locking member out of its locking engagement with in the slider. In order to simplify the release for clumsy or ignorant umbrella users or for foolproof operation, there is arranged on the trigger sleeve a secondary trigger which may be pressed radially inwards either manually or upon axial displacement of the trigger to move the locking member out its locking engagement with the slider.

Growing community of inventors

Langenfeld, Germany

Klaus Stiller