ES2303091T3 - COFFEE ASSEMBLY FOR FOLDING AND LOADING BAR. - Google Patents

Abstract

The object of this invention consists of an autolocking closure for awning boxes, this is, a closure constituted on a box that houses the shaft on which an awning fabric is wound, provided with a load bar that locks itself in the box. The invention uses a configuration of the box and the load bar such that it closes the box with the load bar without a direct manipulation of the load bar. In case of a vertical elevation of the load bar it is associated to folding arms, being locked in the box by a simultaneous double sliding and rotation motion so that it is automatically and completely locked, while if it is attached to the end of hinged arms the box is closed directly by locking the bar in the

Description

Box set for awning and bar load.

Object of the invention

The object of this invention consists of a set of hood for awning and loading bar, that is, a closure constituted on a chest that houses the axis in which the awning canvas, equipped with a load bar that is self-contained in the chest regardless of whether the load is lifted vertically or is operated by an articulated arm.

The piece that closes the chest is the bar load, which fits into the chest and closes it using rotation of the axis on which the canvas is wound and the traction of the canvas.

The invention is characterized by the configuration both the chest and the load bar, since the chest is Close using the loading bar without any external participation making the loading bar fit in the chest, with a combined movement of displacement and rotation with respect to contact point of the load bar, in the case of a vertical displacement and folding arms, or fitting directly in the case of articulated arms.

Background of the invention

Different systems are known for closing the load bars in the chests in which the canvas is housed.

The patent with publication number ES2122865 describes a hood for awnings with various mounting positions that, as shown in figures 1 and 2 of its description, it is provided with a loading bar arranged on a chest for protect the chest in which the awning canvas is housed.

The awning used in this invention has the anchor to the loading bar at its top, very close to the point of contact between the loading bar and the chest, slightly shifted to the right.

In this position, the traction exerted by the canvas being lifted and closed does not apply any torque on the loading bar that allows it to close on the seats of the chest.

The patent with publication number ES2067390 describes an improvement made to the awnings with an enclosure which closes the awning in the folded position.

The hood for the awning is closed by the stringer or crossbar that acts as a loading bar and is provided with foldable arms that, as shown in the Figures 3 and 6 of the specification, attach the loading bar producing a mainly horizontal displacement of the bar during the approach.

In this system the trajectory of the bar load is conditioned by the extendable arms, which are attached to the structure of the chest itself. During adjustment and closing, given that the approximation is not exact, the invention includes a set of guides that guide the loading bar during the process of coupling

Similarly, this setting is not suitable for awning systems that extend so that they remain, for example, practically vertical, since their extension is determined by the joints that join the arms extensible

The utility model with publication number ES231982U describes a support chest for roller awnings in which, as shown in figures 2 and 3 of its descriptive report, despite being provided with a loading bar that closes the chest, the extendable arms of the set have a double play of articulated arms, as well as a wall anchoring system on which movable joints are mounted on the anchoring elements to the wall by means of springs.

Therefore, the object of the present invention is to overcome the above mentioned inconveniences, developing  a set of chest and load bar with foldable arms or articulated, in which the closure and insertion of the bar chest load run accurately without requiring a adjustment or subsequent manual assistance.

To this end, it presents a series of construction features that make the load bar fit in the chest by means of a double movement of displacement and rotation around the contact point of the load bar over the chest in case of a vertical displacement, so that it will be provided with foldable arms, while in case of articulated arms will fit directly into the chest.

Description of the invention

The object of the invention is a set of awning box and loading bar according to claim 1, which It consists mainly of a chest that, together with the bar load, are provided with a number of features constructive that allow to automatically close and adjust the bar loading into the chest when picking up the tarp.

This type of chests includes inside a axis with the canvas so that the canvas is protected from the middle ambient.

The awning box and load bar assembly it can be associated with folding arms or attached to the end of articulated arms located well below the chest, with the particularity that allows the closure of the chest regardless of the type of arms on which it is mounted.

While the loading bar is generally a simple tubular bar, in this invention its configuration allows complete the closure on the casing of the chest.

As the canvas rises during its collection, The loading bar hangs from its point of attachment to the canvas. Center of gravity of the loading bar is located in such a way that the orientation of the loading bar is similar to that of the closing of the chest.

The similar term is used because it is slightly turned, so that when it reaches the chest while Raise, the bottom is open.

The top edge of the loading bar is the First element that establishes contact with the chest. This contact takes place in an oblique section of the upper free edge of the chest, so that the two surfaces can slide.

This foothold is located slightly by over and out with respect to the point of attachment of the canvas and the loading bar. Pulling the load bar exerts a torque on it that causes the bottom edge of the loading bar to be move towards the bottom edge of the chest housing.

This rotation is combined with the small elevation left to close the chest, so that both edges  of the loading bar are tightly fitted on the housing of the chest.

There must be a certain distance, separation or a lever arm between the canvas roll and the fulcrum of the upper edges of the load bar and the casing of the chest, since this distance along with the tensile force of the canvas, Determine the torque on the load bar.

If the roll has a small diameter it is it is possible that the vertical line on which the bar rises from load is very close to the axis, so that the first support of the load bar go beyond the inclined section and between directly in the chest cavity.

This problem is solved in this invention. using an axis with a diameter such that by adding to the increase in diameter caused by the canvas roll, the vertical line of ascent will be sufficiently separated from the axis to guarantee a correct first support of the load bar.

Since the oblique section of the upper edge is extends on a horizontal section and the bottom edge is a small vertical wall, the loading bar can be introduced according to a vector of vertical or horizontal displacement, since any of these entries (and their intermediate paths) lack interference mechanics that prevent the correct entry. The use of different types of arms, not necessarily those used in the examples of the preferred embodiment, they are examples of embodiments that result in trajectories intermediates that are considered all of them belonging to the invention.

The loading bar entry according to a vector Horizontal displacement allows the use of this chest with an articulated arm instead of closing it by hanging the bar. When the articulated arm is in an upright, close position at closing, the vector of tangential displacement to the trajectory circular produced by the articulated arm is horizontal or almost horizontal, so that this entry is possible.

For the same reason, arms can be used articulated that are not straight, since the kinematics of the movement of the loading bar is not affected by these other configurations

Description of the drawings

This description is completed with a set of drawings illustrating the preferred embodiment and do not limit the invention in any way.

Figures 1, 2 and 3 show a view in housing section and loading bar in a sequence of elevation with the final closed position in the ascent option vertical.

Figure 4 shows another way to use the chest with loading bar with articulated arms in a open position.

Figure 5 shows the embodiment previous in a closed position.

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Figures 6 and 7 show a form of alternative embodiment similar to the previous one in which the canvas goes attached to the back of the loading bar at one more point low, in which the canvas is wrapped around the bottom From the axis.

Example of a preferred embodiment

In view of the figures above indicated, an example of a form of preferred embodiment of the invention together with an explanation of the drawings.

Figure 3 shows a cross section of the invention corresponding to the closed position of the bar of load (2) on the chest (1), inside which is the canvas (3) wrapped around an axis (4).

Shown below the loading bar (2) is find the arms (5) used to join the load bar (2) to the rail or site provided with the anchoring elements that fix the loading bar (2) once it has been lowered.

Figure 1 shows the set when it is extended. The loading bar (2) is suspended from the canvas (3) a through the anchor point (14). Since near the anchor (14) the canvas (3) rests or rests on a section above the surface of the loading bar (2), the upper projection (9) of the bar load (2) constitutes the last point of contact and thus it is here where the traction of the canvas on the bar of load (2).

The center of gravity (6) is also shown, which at all times tends to be aligned vertically with the projection contact point (9) of the load bar (2) with the canvas (3).

As shown in figure 3, the bar load (2) has a slight inclination that does not correspond to the orientation to be taken at closing due to the alignment of the center of gravity (6) with the projection point (9) of the loading bar (2) that matches the vertical line of the canvas (3).

The tilt of the loading bar (2) has been adjusted by a projection or protuberance (9) of the part top of the loading bar (2), and has also been used to adjust the horizontal rise position of the load bar (2), to ensure proper support of the top of the bar (2) on the ramp (7) of the chest.

On the upper edge of the chest housing (1) an oblique ramp (7) is provided to ensure that the bar load (2) fits into the chest (1).

As you can also see, the part top of the loading bar (2), above the projection that define the support point (9) of the canvas (3), present a curved surface (8) that together with the ramp (7) will help fit the load bar (2) into the chest (1).

Figure 2 shows the moment in which the curved top edge (8) of the load bar (2) makes contact with the oblique ramp (7) at a point (10) of this ramp (7).

The traction of the canvas (3) exerted by a force represented as F will always occur along a tangential winding direction, forcing the load bar (2) to find your seat.

The upper seat and coupling (or first seat) of the loading bar (2) is achieved by sliding along the direction of the arrow (11) tangent to the surface defined by the oblique section (7); The coupling lower (or second seat (15)) is achieved by rotation produced by the torque due to the force F.

As shown in said figure, the force F produces a torque equal to product F.d_ {1}, being d_ {1} the perpendicular distance from the tensile point of the free end of the canvas (3) to the point of contact (10) of the curved surface (8) of the load bar (2) with the oblique section (7) of the hood housing (1). This torque produces a clockwise rotation (12) (in the selected view) with regarding the point of contact (10).

On the other hand, weight (mg, multiplied mass by the acceleration of gravity) of the load bar (2) applied on the center of gravity (6) produces a torque counterclockwise that opposes the torque indicated above, equal to the product

mg \ cdot d_ {2}

D_ {2} being the perpendicular distance from the center of gravity (6) to the vertical line above the point of instant rotation (10) of that moment.

Therefore, according to the loading bar (2) fits in the casing of the chest (1) its upper part will be coupled by displacement, while its lower part will settle (15) mainly through a rotation (12).

In this exemplary embodiment the upper seat features a horizontal configuration with the stretch internal oblique (7) in its innermost part. Lower seat (15) is vertical and straight. The configuration of these seats allows entry according to a vertical scroll vector for the vertical input and for the horizontal input for settings described below. The configuration of these seats are not limited to these forms, since it is enough that they admit an entry without interference in the angle range so that the operating mode matches with that of the invention.

Figure 4 shows another embodiment in which the loading bar (2) is attached to the ends of some arms articulated (13). The canvas (3) is attached to the top of the loading bar (2) and is wrapped around the top of the shaft (4). The lace takes place simply by rotating imposed by the articulated arms (13), so that the vector of displacement of the load bar (2), tangent to the trajectory at all times, is approximately horizontal during the entrance and closing.

With this trajectory and orientation of the bar of load, it can be seen that both the upper support and the lower present an orientation that admits both an entry vertical bottom as a horizontal side entry, without mechanical interference as indicated above.

Figure 5 shows how the loading bar (2) it fits into the casing of the chest (1) in this new way of realization.

Figure 6 shows an embodiment alternative similar to that of figure 4. In this case the canvas (3) it is attached to the bottom of the loading bar (2) and is rolled up on the lower part of the shaft (4).

Figure 7 shows the chest closed by the loading bar (2) with the reverse winding of the tarp (3) (it is say, at the bottom), with the connection to the load bar (2) also at the bottom.

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References cited in the description This list of references cited by the applicant for The present invention is provided for convenience only. of the reader. This list is not part of the patent document European Although much care has been taken during the compilation of references, the possibility of that errors or omissions have occurred and in this regard the EPO disclaims all liability. Patent documents cited in the description

ES 2122865

ES 231982 U

ES 2067390

Claims (8)

1. Set of hood for awning and loading bar provided with a housing that houses a shaft in which the canvas of the awning is wound and said loading bar that, once collected the canvas, completes the closure of the hood housing, said loading bar being connected to folding arms or an articulated arm system, characterized in that said casing of said chest (1) is provided with an opening having an upper edge that includes a first seat with an oblique inner section (7) and a lower edge with a second seat (15) for the loading bar (2); and said loading bar (2) is provided with at least one anchor (14) for the canvas (3) with a support point for the canvas (3) so that when the loading bar (2) of the Canvas (3) is aligned with its center of gravity (6), assuming an orientation so that, when lifted and picked up, the upper edge of the loading bar (2) is the first to come into contact with the seat upper of the casing of the chest (1) through a surface (8), so that the load bar (2) produces due to its weight a torque, so that at this point (10) of contact with the upper seat, the loading bar (2) slides to its final position and, with respect to this same point (10), due to the traction of the canvas (3), the torque simultaneously produces an approximate rotation the lower seat of the loading bar (2) to the second seat (15) of the housing (1). 2. Assembly according to claim 1, characterized in that the point of support of the canvas (3) on the loading bar (2) is coupled by means of a protuberance (9) which determines the correct inclination of the loading bar (2) during the vertical ascent. 3. Assembly according to claim 1, characterized in that the diameter of the canvas wound on the shaft is at least large enough for the vertical tangent to place the loading bar (2) hanging from the canvas (3) beyond of the inner end of the oblique section (7) of the first seat. 4. Assembly according to claim 1, characterized in that the opening of the casing of the chest (1) and the seats has a configuration that allows the entrance of the load bar (2) until it closes the chest according to a vertical displacement vector ascending and lateral horizontal, as well as all intermediate situations, without any mechanical interference preventing this closure. 5. Assembly according to claim 1, characterized in that the loading arm has folding arms (5). 6. Assembly according to claim 1, characterized in that the loading bar (2) is attached to the wall by means of an articulated arm (13). 7. Assembly according to claim 6, characterized in that the canvas (3) is wound on top of the
shaft (4). 8. Assembly according to claim 6, characterized in that the canvas (3) is wound on the lower part of the
shaft (4).