FR2643244A1 - Device for moving a bed vertically inside a structure - Google Patents

Abstract

The invention relates to a device for moving a bed 2 vertically and parallel with itself inside a supporting structure 1 resting on the floor. The bed can be moved between a lowered position of use in which it rests on bearing points integral with the structure and a raised position of storage. Four cords attached to four points of the bed travel over pulleys to a clamp component 6 connected to a lifting block 3. The bed can be moved by pulling on the single cord 4. The device is particularly designed for installation in any dwelling.

Description

The present invention relates to a device for moving

  vertical of a bed inside a structure and immobilization thereof at a low level of use and a high level of storage thus freeing up the lower space. It is intended to be used in all places of habitation and generate a gain

of space.

  We know devices that allow displacement

  of a platform or a bed inside 1 of a structure

  ture (patent application 87 08183). However, their implementation requires expensive guidance systems. In addition, the bed must be balanced by a counterweight of equivalent mass, which requires adjustment. This setting must be questioned at each modification of the layout of

  the platform, which is not practical.

  The device according to the invention overcomes these drawbacks. It has a monolithic structure resting on the ground, with a height slightly lower than the height under

  ceiling of the installation place, inside the-

  which a bed can move vertically and parallel-

  itself to itself between two extreme positions.

  According to a general embodiment, the bed is linked at least two points to ropes or hoists arranged between these points and the structure. Return pulleys linked to the structure return the ends of these ropes or these hoists to an area where they are close and parallel and secured by means of a

  mechanical piece. A manual or motorized drive means

  laughed, linked to this piece, allows the strings to move and

  therefore move the bed vertically.

  According to a preferred embodiment, the bed is pulled vertically at four points where four cords take their origins (they are fixed there). Six deflection pulleys secured to the structure and placed at the top, allow the four cords to be moved horizontally, parallel to each other and in the same direction when the bed moves vertically. A quadruple return pulley, also integral with the structure and located at the top,

  allows you to return these four strings vertically.

  At this level the four strings are joined between

  them via a clamping piece.

  A pull on the clamping piece makes it possible to move the bed vertically and parallel to itself. There is no reduction between the linear displacement

  of the bed and that of the clamping piece.

  According to a variant, only three cords are fixed at three points of the bed chosen so that the center of gravity of the bed belongs to the cylinder with a vertical axis, resting on the triangle, the vertices of which are the fixing points. At the fixing points with

  the bed the three strings are vertical. Solid pulleys

  daires of the structure return these cords to an area where they are close, parallel and vertical. Pulling on these cords will move the bed vertically and

  parallel to itself without multiplying forces.

  According to another variant, only two cords are fixed at two points of the bed chosen so that

  the center of gravity of the bed is close to the clear cylinder

  born of vertical axis, resting on the segment joining these two points and located below this segment in order to confer on the bed a stable equilibrium. At the point level

  fixing with the bed the two ropes are vertical.

  Pulleys integral with the structure return these cor-

  in an area where they are close, parallel and vertical. A pull on these cords allows the bed to be moved vertically and parallel to itself without

multiplication of forces.

  According to another variant, four strings are fixed at four points on the bed and joined two by two to form only two strings. Pulleys integral with the structure return these two cords to an area where they are close, parallel and vertical. Pulling on these cords will move the bed vertically and

  parallel to itself without multiplying forces.

  According to another variant, hoists are fixed between points of the bed and points of the structure located at the top. Pulleys integral with the structure return the

  ends of these hoists in an area where they are pro-

ches, parallel and vertical.

  A pull on these ropes allows to move the bed vertically and parallel to itself with a reduction in forces equal to the reduction

hoists.

  According to a preferred embodiment, the ropes are secured by a mechanical part and a hoist fixed on the one hand, to this part and on the other hand, at the bottom of the structure, constitutes the drive means. A pulley

  also attached to the structure and if-

  killed at the top, allows the rope to be returned from the hoist and

  make its operation more ergonomic.

  According to a variant, the strings are secured by a

  spreader and a single rope attached to this spreader

kills the training medium.

  According to another variant, the strings are secured by a mechanical part comprising a handle, which

  is the training medium. -

  According to another variant, the strings are wound up

  cylinder turn of a manual or motorized winch.

  According to a general embodiment, the bed can be immobilized at any altitude by blocking the drive means. The hoist rope or single rope or the handle can be stopped by a locking device (for example a cleat or a series of cleats

  fixed to the structure) and the winch can be blocked.

  According to one variant, a counterweight of mass less than or equal to the mass of the bed or, in the case of the use of several hoists, less than or equal to the fraction of the mass of the bed corresponding to the reduction in gear of the hoists, is fixed at the mechanical part securing the strings or is fixed directly to the strings in an area where

  they are close, parallel and vertical. This counter

  weight has the effect of reducing the work required to

climbing the bed.

  According to another variant, a removable counterweight can

  be fitted onto the mechanical part securing the cor-

  of. This part is made in the form of a slide and

  has at its base a scallop allowing many

  the counterweight of complementary shape.

  According to a general embodiment, when the bed is in the high storage position, safety elements

  (for example rotary cleats with respect to the st-ruc-

  avoid the fall of the bed in the event of the drive means being released or in the event of

broken strings.

  When the bed is in the low position of use, it

  rests on points of support integral with the structure.

  The height of these support points can be modified.

  According to a preferred embodiment, the structure

  has four vertical beams limiting movement

  side elements of the bed. To avoid wear of the parts, a slippery material (for example felt) is glued

on contacting surfaces.

  The support points are constituted by four wedges screw-

  placed on the vertical beams. Several holes are drilled in the beams and allow to unscrew the shims

  and screw them back in at a different altitude.

  The legs of the structure are fixed to the ground and thus maintain a constant spacing. Cylinders exert pressure between the ceiling of the installation site and the

  top of the structure to stabilize it.

The structure is made of wood.

  FIG. 1 represents, in perspective, a form of reaction

  reading of the device according to the invention.

  2 shows a view, along the section plane III-III of Figure 3, of the device in the same shape

  of achievement. The rope is not shown.

  FIG. 3 represents a view, according to the section plane I-I of FIG. 2, of the device according to the same form of

  production. Here again the rope is not shown.

  Figure 4 shows section II-II of Figure 2, of the device according to the same embodiment. The bed and

  the rope is not shown.

  Figure 5 shows, in section, a security element.

  Figure 6 shows, in perspective, 1-th rope and the

  pulleys of the device according to the same embodiment.

  FIG. 7 represents, in perspective, the architecture of the

  bed drive means according to a first variant.

  The bed and the structure are not shown.

-2643244

  Figure 8 shows, in perspective, the architecture of the

  bed drive means according to a second variant.

  The bed and the structure are not shown.

  FIG. 9 represents, in perspective, the architecture of the drive means of the bed according to a third variant.

  The bed and the structure are not shown.

  FIG. 10 represents, in section, the solidary piece

  the strings and the elements to which they are linked,

according to this third variant.

  Figure 11 shows, in perspective, the architecture of the

  bed drive means according to a fourth variant.

  The bed and the structure are not shown.

  The embodiment of the device according to FIGS. 1, 2, 3, 4, 5 and 6 comprises a structure (1) having dimensions of the order of 2.5 m for the height, 1.9 m for

  width and 1.6 m for depth.

  This structure includes four vertical beams assembled in their upper parts to four beams

  horizontal, which makes the unit monobloc.

  Four wedges are screwed onto the vertical beams.

  When the bed (2) is in the low position of use, it

rests on these four wedges.

  The holes (T1), (T2), (T3) and (T4) in Figure 3, my-

  trent that the wedges can be screwed at heights

  different, which allows you to choose the level of use

sation of the bed. -

  The structure is larded on the floor and is compressed by bolts in its upper part. These elements are not

not shown in these figures.

  The device according to this embodiment also comprises a bed (2) having dimensions of the order of 0.35 m for the height, 1.95 m for the width and 1.6 m for the depth. This bed allows you to use a mattress

  having dimensions of 1.9 m x 1.4 m.

  The bed is located inside the structure like the

shows figure 1.

  The vertical beams limit the lateral displacements of the bed. Felt (5), shown in Figures 2 and 3, is glued to the areas of the bed in contact with these

  beams and prevents wear of parts.

  When the bed is in the high position, the hole (T5) in Figure 4 shows that we can relate to the structure of the security elements, a copy of which is shown in

  Figure 5 (on a different scale).

  The rope is represented in figure 6. Four strings (Cl), (C2), (C3) and (C4) take their origins at the points

(OA), (OB), (OC) and (OD) of the bed.

  The lights (L1) and (L2) of figure 2 show by o pass the cords which are tied by knots of

chair.

  A clamping piece (6) allows the four ropes to be secured and fixed to a hoist (3). The other extremity

  of the hoist is fixed to the point (FD) of the structure.

  A pulley (P17) fixed to the structure returns the rope

traction of the hoist.

  A pull on the rope (4) imposes on the four points (OA), (OB), (OC) and (OD) identical displacements. The reduction between the linear displacement of the rope (4) and those of the points (OA), (OB), (OC) and (OD), therefore of the bed, is determined by the reduction of the hoist. In this embodiment of the invention, the hoist comprises six pulleys (Pll) to (P16) and increases the displacements

linear by six.

  When the bed is in the high storage position, the

  rope (4) can be locked on the cleat (7) and the

  safety elements can be implemented.

  The lower space can then be invested and furnished.

  By removing the safety elements and releasing the rope

  (4), the bed descends on its supports.

  The bed can be used without being necessary

  move the furniture occupying the lower space.

  In the embodiment according to FIG. 7, four hoists (PAl), (PA2), (PA3) and (PA4) are arranged between four points of the bed (OA), (OB), (OC) and (OD) and four points of the structure located at the top (SA), (SB), (SC) and (SD). Ten pulleys (Q5) to (Q14) return the four ropes of the tackles in an area where they are close, parallel and vertical. A piece (6 ') secures them. A rope (CT1)

is linked to this room.