CN216089261U

CN216089261U - Props and/or cantilevers for erecting umbrellas

Info

Publication number: CN216089261U
Application number: CN202121703478.2U
Authority: CN
Inventors: H·福特胡贝尔; M·巴伦达; F·埃舍特舒伯
Original assignee: Knapos International Ltd
Current assignee: Knapos International Ltd
Priority date: 2020-07-27
Filing date: 2021-07-26
Publication date: 2022-03-22
Anticipated expiration: 2031-07-26
Also published as: DE102020119745A1; WO2022023121A1; DE202021103860U1; EP4188149A1

Abstract

The utility model relates to a mast (13) and/or a boom of an umbrella, comprising at least one first partial piece (1) and one second partial piece (2), wherein the partial pieces (1, 2) together form at least one part of the mast (13) and/or the boom, and wherein at least one gas spring is arranged between the two partial pieces (1, 2), said gas spring having a cylinder (3) and a piston (4), said gas spring connecting the two partial pieces along their longitudinal axes, wherein the mast (13) and/or the at least two partial pieces (1, 2) of the boom are movable relative to one another and along their longitudinal axes by means of the cylinder and the piston.

Description

Props and/or cantilevers for erecting umbrellas

Technical Field

The utility model relates to a mast and/or a boom which can be adjusted in height, for example for umbrella stands, in particular for so-called traffic light umbrella stands or pendulum umbrellas. In the latter umbrella standing configuration, the struts are arranged laterally rather than centrally.

Background

There are always heavy canopy whose weight must be compensated for when erecting, thereby adjusting the mast in height and/or opening the umbrella. In standing umbrellas, in particular in large umbrellas, there is a central strut structure in which the umbrella struts can be moved radially to the central umbrella strut when the umbrella is closed. In side-mast umbrellas (e.g., pendulum umbrellas), the canopy is closed by a cantilever that moves down and toward the laterally disposed mast.

The struts in the intermediate-strut and side-strut umbrellas and the cantilevers in the traffic light or pendulum umbrellas are preferably designed in the case of large umbrellas such that the struts and cantilevers only reach their final length in the open state as they open. The mast or the boom can therefore be adjusted in length in the case of large umbrellas.

For this purpose, various mechanisms exist, in particular pulley blocks, internal and external spindle and/or toothed bar drives, telescopic travel bars, etc., by means of which the struts and/or the cantilevers can be adjusted in length.

Accordingly, there is significant weight on the canopy suspension means associated with the size of the umbrella, which moves as the mast and/or the boom lengthen.

It is known that the strut length, for example in the case of an open canopy of a mid-strut umbrella, extends telescopically to the length required by the umbrella support for opening the canopy.

In the case of small sun umbrellas, there is a two-part solution of the strut, so that one half acts as a drum, while the second half of the strut with the canopy can be moved inside the drum for height adjustment.

In the case of large sun umbrellas, for example in the catering industry, a two-part version of the cartridge cannot be envisaged, since it cannot be operated due to the weight of the canopy.

SUMMERY OF THE UTILITY MODEL

The object of the utility model is therefore to provide a structure for height and/or length adjustment of a mast and/or a boom, in particular in an umbrella, which can be adjusted when the canopy is closed and/or independently of the state of the umbrella support.

The object is achieved by the subject matter according to the utility model as disclosed in the description, the figures and the claims.

The solution of the object and the subject matter of the utility model are therefore a support and/or a suspension arm of an umbrella, comprising at least one first and one second partial part, wherein the partial parts together form at least one part of the support and/or the suspension arm and at least one gas spring is arranged between the two partial parts, which connects the two partial parts along their longitudinal axes, by means of which the at least two partial parts of the support and/or the suspension arm can be moved relative to one another and along the longitudinal axes of the at least two partial parts.

According to an advantageous embodiment: at least two sub-parts can be telescopically moved into each other. According to an advantageous embodiment of the utility model, three, four or more sub-elements are provided for the construction of the supporting pillar. The mast (for example for erecting an umbrella) has a mast foot on the bottom side and an umbrella cover on the head side.

Gas springs are generally used for weight balancing of two elements and are known from tool manufacture.

The gas spring comprises a piston with a piston rod, which is arranged movably inside a gas-filled pressure tube, in particular inside a cylinder. The gas spring is a gas-driven spring, wherein the piston is moved in the cylinder by the pressure of the gas, and at least one sealing ring is provided, which is located on the piston and has a gas through-flow opening.

The diameter of the gas through-flow opening is on the one hand and the gas pressure in the cylinder on the other hand to determine the spring force of the gas spring as a standard. In order to utilize the spring force, the cylinder is engaged on the one hand by means of a spring retainer, and the piston is fixed on the other part by means of a piston rod.

In this case, it is particularly advantageous to integrate a spring suspension for the piston rod in the head-side partial part, and to integrate a device for receiving a cylinder of a gas spring in the bottom-side partial part.

According to an advantageous embodiment of the utility model, the at least two partial parts are tubular. It is particularly advantageous if the at least two partial parts have diameters which deviate only slightly from one another, so that one partial part can be inserted into the other partial part. There are however many alternatives for connecting two sub-parts to form a strut. Couplings can be used here, bayonet connections or the like can be provided here. There are many known solutions for the person skilled in the art.

For example, the struts, in the retracted state, completely or partially enclose the housing of the gas spring. On the other hand, it is also possible to provide: a portion of the housing of the gas spring forms a portion of the strut.

The height of the strut and/or the length of the cantilever arm can be easily varied by the user by means of a gas spring. At least a portion of the weight is compensated for by the gas spring.

A spring suspension is preferably provided on the piston side toward the upper end of the strut, which carries the weight to be compensated, i.e. for example the canopy. The spring suspension can be realized as a rope, a bolt, a hook, a hose and/or a ball joint or the like, whereby a torsion of the gas spring is avoided, and can be realized by any other known spring suspension and/or combination of spring suspensions.

The gas spring is preferably arranged on the cylinder side on the end of the strut facing the strut foot. The housing of the support cylinder of the gas spring can also be mounted and/or fastened to the partial piece of the strut and/or the bracket to be adjusted, for example, by means of a recess, a bolt, a hook, a ball joint, etc.

The two ends of the gas spring, which are fastened to the strut and/or the bracket (which can be adjusted in height or length), can be connected to the respective sub-part in the same manner or in different manners.

In operation, the height or length of the strut and/or the cantilever is changed by moving the piston in the cylinder of the gas spring.

In order to move the piston of the gas spring, means are provided in and/or on the strut and/or the cantilever, which means directly (i.e. directly) or indirectly (i.e. indirectly) bring about a longitudinal movement of the piston inside the cylinder of the gas spring. The end of the piston rod can be moved, for example, by a slide which can be moved up and down, for example, on the column outside along, also inside, a corresponding slot in the column.

For example, the upper end of the piston rod can be coupled indirectly or directly to the winch. The winch can be driven in that respect by means of a motor (e.g. an electric motor) slide and/or a crank.

The electric motor can in turn be operated, for example (at least also) remotely controlled, so that the user can cause the height adjustment of the mast and/or the removal of the boom by remote manipulation.

Preferably, the means for moving the piston of the gas spring are designed such that the piston is not only fixed in the respective end position (i.e. completely moved in or completely moved out of the cylinder), but can also be fixed in any position of the cylinder. The piston can thus be held in a predetermined position. On the other hand, it is therefore also possible to achieve a stepless height adjustment of the mast and/or the boom by fixing a cable, for example a slide and/or a winch.

The extension or shortening of the strut and/or the cantilever is brought about by the movement of the piston out of or into the cylinder.

According to an advantageous embodiment of the utility model, the length adjustment of the strut and/or the cantilever corresponds directly to the length adjustment of the piston inside the cylinder of the gas spring.

According to a further advantageous embodiment of the utility model, the length adjustment of the strut and/or the cantilever is carried out by means of a gas spring, so that a multiple or a fraction of this length adjustment of the strut and/or the cantilever is carried out by means of a certain length of the piston movement.

According to an advantageous embodiment of the utility model, a screw connection is provided on the canopy side as an engagement for the gas spring. A screw, which is screwed into the thread in a form-locking manner, is provided on the head side of the piston rod.

According to an advantageous embodiment of this embodiment of the utility model, a non-circular shape of the piston is provided, which shape better secures the interior of the cylinder against torsion than a circular, radially symmetrical shape of the piston rod.

Drawings

The utility model is explained in more detail below with 3 figures according to an exemplary embodiment of the utility model:

FIG. 1 shows the two

subassemblies

1 and 2 before assembly

FIG. 2 shows the two sub-elements of FIG. 1, but inserted together, an

Fig. 3 shows the two sub-parts being inserted into the column via the third sub-part of the column.

Detailed Description

Fig. 1 shows a first partial part 1 on the one hand and a second partial part 2 on the other hand. According to the exemplary embodiment of the utility model shown in fig. 1, in the first part 1, a gas spring with an engagement 7 is located in the first part 1 at the bottom and in said first part the cylinder 3 is anchored. A piston 4 with a piston rod, the head-side end 5 of which has no engagement, protrudes over the entire length from the cylinder 3, the pressure tube of the gas spring.

According to fig. 1, the two

partial parts

1 and 2 are not yet connected. The second part 2 exhibits means 6, for example a thread 6, for receiving the head-side end 5 of the piston rod 4. The thread 6 is connected to a capstan 8 by a rope. The winch 8 is driven by a crank 9.

Fig. 2 shows

identical parts

1 and 2, however assembled. The second sub-part 2 is moved with its lower end over a part of the first sub-part 1. The piston 4 is screwed by its piston rod with its head-side end 5 to a thread 6 in the second part 2.

Finally, fig. 3 shows an enlarged detail of the support strut 13 compared to the two preceding figures, wherein the three

partial parts

1, 2 and 11 of the support strut 13 are shown. The first partial piece 1 is connected to a third partial piece 11 by means of a connecting portion 10, said first partial piece 1 being inserted upwards in the second partial piece 2. In this case, the engagement portion 10 is moved into the complementary element 12. The two

parts

11 and 1 from fig. 3 therefore have the same diameter and cannot be moved into one another.

The gas spring can be formed by its housing, by the cylinder, the piston and/or additionally, for example, a part of the strut and/or the cantilever, i.e., the strut is also visually influenced. This is not mandatory, however, since the gas spring also exhibits a large action with a small diameter and can therefore also "disappear" visually in the hollow space of the strut and/or the cantilever together with the spring suspension.

The utility model provides for the first time a structure for the height adjustment of a mast (for example of an umbrella stand), in which the gas spring counteracts the weight of the mast plus the weight of the canopy. The utility model provides for the first time a length-or height-adjusting arrangement for a mast (for example of an umbrella) in which the gas spring counteracts the weight of the mast plus the weight of the canopy.

In this case, the mounting of the gas spring (which can be obtained with a very small radius) can be carried out completely within the column and/or the cantilever in a visually inconspicuous manner and also has a great effect.

On the other hand, the housing of the gas spring also makes it possible to visually enrich the strut and/or the cantilever.

List of reference numerals

1 first sub-part

2 second sub-part

3 jar

4 piston

5 head side end of piston

6 piston joint

7 cylinder joint

8 capstan

9 crank handle

10 engaging part on third sub-part

11 third sub-part

12 engagement portion on first sub-member

13 support post

Claims

1. A mast (13) and/or a boom of an umbrella, comprising at least one first (1) and one second (2) sub-part, wherein the sub-parts (1, 2) together form at least one part of the mast (13) and/or the boom, and wherein between the two sub-parts (1, 2) at least one gas spring is arranged, which has a cylinder (3) and a piston (4), which connects the two sub-parts along their longitudinal axes, by means of which the at least two sub-parts (1, 2) of the mast (13) and/or the boom can be moved relative to one another and along their longitudinal axes.

2. The strut and/or cantilever according to claim 1, comprising at least one further third sub-part (11), i.e. a total of three sub-parts.

3. The strut and/or cantilever according to claim 1 or 2, in which the piston (4) of the gas spring is arranged with the head-side end (5) of the piston rod closer to the canopy than the cylinder (3) of the gas spring.

4. The strut and/or cantilever according to claim 1 or 2, in which the piston (4) of the gas spring is joined indirectly or directly to a winch (8) on the head side.

5. The strut and/or cantilever according to claim 4, in which the winch (8) is coupled to a crank (9).

6. The column and/or the jib according to claim 4, in which the winch (8) is coupled to an electric motor.

7. The mast and/or boom of claim 6, in which said motor is controllable by remote manipulation.

8. The strut and/or cantilever according to claim 1 or 2, which is steplessly adjustable in height.

9. The strut and/or cantilever according to claim 1 or 2, in which the piston (4) of the gas spring is fixed in a corresponding thread (6) of the second sub-part (2) on the head side by means of a bolt.

10. The strut and/or cantilever according to claim 3, in which the piston rod of the piston (4) of the gas spring is ribbed or elliptical.

11. The strut and/or cantilever according to claim 1 or 2, in which the housing of the gas spring visibly constitutes a part of the strut and/or cantilever.

12. The strut and/or cantilever according to claim 1 or 2, in which the gas spring is arranged invisible outwards inside the strut and/or cantilever.