ES1068623U - Rest system elevator (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Lifting system of rest system, this being of the type comprising a lower fixed frame, a lifting upper frame as support for the resting surface and gas pistons that assist in lifting said upper lifting frame, also comprising articulated lateral connecting rods between both frames to allow the elevation of the upper frame by manual operation, characterized in that it additionally incorporates a supplementary gas piston mounted longitudinally in the central part of the assembly, being articulated at its ends on respective supports provided in respective crossbars, one fixed and rear arranged between the lateral side rails of the lower frame, and another mounted between the pair of lateral connecting rods articulated to the upper and lower frames, with the particularity that the support of the crosspiece disposed between the lateral rods is mounted articulately to allow the basculami and change of orientation of the gas piston itself, to generate a torque in the lowered position of the assembly, increasing the effect of stability in said position, or to generate a lifting start torque that acts against the specific weight of the lifting assembly, collaborating in the elevation of this one. (Machine-translation by Google Translate, not legally binding)

Description

Lift system lift.

Object of the invention

The present invention relates to an elevator of rest system, of the type used in lifting bed bases, couches, etc., determinants of a surface of rest for people.

The object of the invention is to achieve total stability of the resting surface in its lowered position and to establish a block thereof, regardless of the weight it supports at any time, also collaborating in lifting said surface to avoid unnecessary efforts on the part of the person performing the lifting operation
tion.

Background of the invention

As is known, rest systems constituted by a base or box spring with the corresponding mattress, canapé, etc., can be mounted on a lifting frame to the in order to facilitate the work of the people in charge of fix or change the bedding, being very useful in Hotels and similar.

The elevators work in a way that allows the elevation of the set or frame of the resting surface when it is not occupied, so that the work surface It is more ergonomic.

Well, in most of the products intended for this purpose there is a lower frame resting on the floor, and an upper frame that is elevable, both being racks articulated together with each other by pairs of side cranks, also including gas pistons for compensate the weight of the rest set, that is the frame elevable top with mattress and other elements inherent to the same, facilitating the task of raising that set to the height of work.

To lower that rest set to its resting position, it is necessary to exert a force on the same until support is reached on the lifting system.

When working with the balance between the pistons of gas and the weight of the rest set, sometimes the situation that the system becomes unstable depending on the set weight changes, either because the type of mattress, either because part of the clothing is increased or deleted bed, etc., so that in any case those pistons tend to establish unstable support when the weight decreases, being by another part needed more effort to lift the set When the weight increases.

There are systems or products on the market that reduce the effects of weight variation on the whole by mechanical anchors, using connecting rods, slips, etc., systems that need a supplementary force is applied at the end of the course of descent to achieve its blockage, which implies an increase in Noise level.

Description of the invention

The elevator that is recommended has been conceived to solve the problem described above, and achieve a improvement in the range of weights in which the stability of the set and the effort necessary for its use are suitable, minimizing the noise in the system.

More specifically, the elevator of the invention It is of the type that includes articulation connecting rods between the fixed lower frame and the elevating upper frame, constitutive the latter of the resting surface, since on the box spring will be mounted, and on it the corresponding mattress, complementing that lift with gas cylinders or pistons that collaborate in helping to gently lift said surface of rest and to keep it in the lifting position.

From these basic characteristics, the elevator of the invention is characterized by incorporating a piston of supplementary or additional gas, mounted longitudinally in a intermediate zone, more specifically between a fixed support on a crossbar mounted between the sides of the lower and fixed frame, and a tilting support established on another arranged crossbar between the sides of the raised surface frame, specifically between the side cranks, establishing the points  of articulation of said gas piston, such that when the lifting surface rack is in the position of lowered, the action of said supplementary piston tends to lower the set, while once the movement of elevation, changes the position of the piston with respect to the axis of rotation of the connecting rods, between which the crossbar is mounted carrier of the tilting support in which the gas piston articulates,  collaborating in the elevation of the whole.

Therefore, in the low position an pair that gives rise to what can be considered as an increase in effective weight of the rest set while when start the lift, the piston changes orientation generating a couple acting against the effective weight of the rest set, collaborating in the elevation of said set.

On the other hand, it is planned that the elevator in its set is modular making it possible to achieve different heights, based on that at the ends of the sides of the fixed or lower frame angled profiles are provided inverted, establishing a positioning means that allows the mounting both legs and wheels, interchangeably, and even the combination of both, that is a leg and a wheel in each extreme.

Optionally, the elevator assembly can be  complement with a drive pedal that makes lifting easier said set and constitute single or double sets, taking into account that the drive can also be carried out manually.

Description of the drawings

To complement the description that then it will be done and in order to help a better understanding of the features of the invention, according to a preferred example of practical realization thereof, is accompanied as an integral part of that description, a set of drawings in where illustrative and not limiting, it has been represented the next:

Figure 1.- Shows a perspective view bottom of a structure corresponding to a set or system resting, incorporating the elevator with the characteristics of the invention.

Figure 2.- Shows an elevation view side of part of the assembly represented in the previous figure, in down position.

Figure 3.- Shows the same side view of the previous figure, in intermediate position of elevation.

Figure 4.- Shows a detail in which Observe the possibility of mounting legs and / or wheels.

Preferred Embodiment of the Invention

As you can see in the referred figures, the elevator of the invention is applicable to the rest system that it comprises a lower fixed frame (1) and an upper frame and elevable (2), on which the respective bed base (3) is arranged or similar as support for the mattress.

The racks (1 and 2) are related between if by means of lateral cranks (4) articulated between them, which in combination with gas pistons (5) enable the lifting / lowering the upper frame (2), with a minimum effort and stability in both extreme positions.

Well, from these characteristics, the A novelty of the invention is the incorporation of a piston of supplementary gas (6) arranged centrally longitudinal, and articulated at its end to a fixed support (7) established on a crossbar (8) fixed between the stringers of the lower frame (1), while the other end of the piston of gas (6) is articulated to a support (9) mounted with the power to tilting on a crossbar (10) arranged between the connecting rods sides (4) that articulate between the fixed lower frame (1) and the upper lifting frame (2).

In accordance with the referred characteristics and taking into account the specific arrangement and assembly of the piston of supplementary gas (6), causes the lowering position of the upper lifting frame (2), the aforementioned gas piston (6) store to go down to said frame and therefore to the rest set, and which acts as an overweight as a result of such a piston of gas (6) exerts a force (F) in the assembly through the connecting rods (4), causing a pair that in collaboration with the weight of the rest system exceeds the effort made by the pistons of conventional lifting (5).

Now, when the lift is done of the rest or bed base assembly (2), the gas piston (6) exerts in the system a force (F '), as shown in Figure 3, a through the connecting rods (4), originating a pair that collaborates with the lifting pistons (5).

On the other hand, the set of rest in which the elevator of the invention is applicable, and specifically in the lower frame (1), both can be mounted wheels (11), as shown in figures 1, 2 and 3, as legs (12), as shown in Figure 4, being able to mount or wheels (11) alone, or legs (12) alone, or in shape combined and mount in each corner a leg with its corresponding wheel. This possibility of mounting wheels (11) or legs (12) is because the ends of the lower fixed frame have provided an inverted angular profile (13), as represented In the figures.

In addition, regardless of the drive for lifting and lowering can be performed manually, optionally the set can include a pedal (14) to facilitate this drive and thereby make a smaller effort.

Claims (3)

1. Lift of the rest system, this being of the type comprising a lower fixed frame, an upper lifting frame as a support for the resting surface and gas pistons that collaborate in the elevation of said upper lifting frame, further comprising side cranks articulated between both frames to allow the lifting of the upper frame by manual operation, characterized in that it additionally incorporates a piston of supplementary gas mounted longitudinally in the central part of the assembly, being articulated at its ends on two supports provided in respective crossbars , a fixed and rear one arranged between the side rails of the lower frame, and another mounted between the pair of side cranks articulated to the upper and lower frames, with the particular feature that the crossbar support arranged between the side cranks is articulated to allow the basculami ento and change of orientation of the gas piston itself, to generate a torque in the lowering position of the assembly, increasing the effect of stability in said position, or to generate a lifting torque that acts against the specific weight of the assembly elevable, collaborating in the elevation of this one. 2. Lift of the rest system, according to claim 1, characterized in that the lateral stringers of the lower frame have at their respective ends angular profiles according to an inverted arrangement, which allow the assembly, interchangeably, of legs or wheels and / or a combination of legs -probes at different heights. 3. Rest system lift, according to claim 1, characterized in that it optionally incorporates a drive pedal.