EP1269893A1 - Seating and/or lying furniture with leg-rest - Google Patents

Abstract

The chair has a foot rest (8) mounted on swiveling side supports (10). This can be disconnected from the swivel system and moved to a position where it supports the legs at knee level rather than the feet.

Description

The invention relates to a seating and / or reclining furniture with a Seat part as well as with a leg support, which is a leg rest as well as a lifting swivel device, by means of which the leg rest can be raised and lowered relative to the seat part while being controlled by one horizontally and transversely swivel axis extending in the direction of view of the user is pivotable.

Such furniture in the form of armchairs is more practical View known. By means of a lever gear the leg support in different heights and thus simultaneously in different pan or tilt positions convict. The movement of the leg rest is often coupled with an adjustment of the seat part or - if available - with an adjustment movement of the Backrest of the furniture. This is to ensure that the user's legs rest on the leg rest an ergonomically favorable and comfortable location opposite the rest of the user's body. The kinematics the known leg rest is structurally predetermined and does not allow special needs of furniture users to consider.

The known furniture to match individual needs to make their users more flexible the present invention aims.

According to claim 1, this object is inventively solved in that on a seating and / or reclining furniture the leg rest of the type specified at the beginning Lift swivel device decoupled by a horizontal and pivot axis extending transversely to the direction of view of the user from the positively controlled swivel position in at least one different pivot position can be pivoted and fixed in this pivoted position. The set by means of the lifting swivel device The swivel position of the leg rest can therefore be adjusted if necessary change. The leg rest can be so if necessary be transferred to a position that optimally meets the needs is matched by the user and accordingly offers maximum convenience. The lifting swivel device only provides one in these cases Rough adjustment of the leg rest.

In a preferred development of the invention, the leg rest decoupled from the lift swivel device in at least a swivel position for knee support swiveling and in this pivot position can be determined (claim 2). In In this case, the seat and / or Lounger furniture his user in addition to taking a comfortable Rest also taking a kneeling position like her for example chosen as an ergonomically favorable working posture can be.

From a constructive point of view, advantageous measures to guarantee an individual adjustability of the leg support Furniture according to the invention are in claims 3 and 4.

The type of invention according to claim 5 stands out due to a wide range of possibilities to adjust the legrest. Already because the pivotability decoupled from the lifting swivel device The legrest support can be positioned for the legrest be chosen, the special needs of the furniture user Take into account. The resulting is expanded Spectrum of setting options through the Circumstance that also opposed the position of the leg rest the legrest support is variable.

Of particular practical importance is that according to claim 6 intended mobility of the leg rest opposite the legrest support.

For fixing the leg rest in the respective sliding position there are various possibilities according to the invention. For the purposes of the invention, preference is given to claim 7 a locking device which by means of a Control device controlled and thus actuated automatically, is particularly solvable.

An automatic release of the leg rest in its shifted position securing connection with the legrest support can be required, for example, if the leg rest with their positively controlled lifting and pivoting movement Objects or facilities in the area of the invention Seat and / or reclining furniture collides. Is in in such cases, securing the leg rest against displacement resolved, it is on the one hand a collision-related Damage to the leg rest avoided. At the same time by loosening the connection between the legrest and legrest support blocking the positively controlled lifting swivel movement the leg rest can be prevented. After this The leg rest can rather loosen the connection automatically avoid the obstacle and thereby the positively controlled Continue stroke swivel movement.

Technically simple and reliable design options for automatically releasing the connection from the leg rest and legrest supports go from the claims 8 and 9. The application of spring force ensures this of the brake member according to claim 9 that the Locking or braking device for fixing the leg rest on the leg rest support after loosening again is automatically returned to its functional position.

Claim 10 describes a type of the invention Seating and / or reclining furniture, in case of need for the greatest possible ease of use also through the design and arrangement of the lifting and swiveling device is worn. After the boom assembly described relative to the direction of view of the furniture user builds small and extends between the user's legs, there is no problem for this when taking a sitting or lying position and at the same time with the legrest raised, the feet towards the floor without going through the lifting / swiveling device would be hindered.

Fig. 1 bis 5:

eine Sitzliege umfassend einen Sitzteil, eine Rückenlehne sowie eine Beinabstützung mit einer ersten Abfolge von Stellungen der Beinabstützung;

Fig. 6 bis 8:

die Sitzliege nach den Fig. 1 bis 5 mit einer zweiten Abfolge von Stellungen der Beinabstützung;

Fig. 9, 10:

eine Auslegeranordnung als Teil der Beinabstützung nach den Fig. 1 bis 8;

Fig. 11:

einen Beinauflagenträger ebenfalls als Teil der Beinabstützung nach den Fig. 1 bis 8;

Fig. 12:

die Auslegeranordnung nach den Fig. 9, 10 mit dem Beinauflagenträger nach Fig. 11;

Fig. 13, 14:

eine dem Beinauflagenträger nach den Fig. 11, 12 zugeordnete Beinauflage mit gesteuerter Arretierungsvorrichtung;

Fig. 15:

die Arretierungsvorrichtung nach den Fig. 13 und 14;

Fig. 16:

die Beinabstützung nach den Fig. 1 bis 8, bestehend aus den Bauteilen nach den Fig. 9 bis 15;

Fig. 17:

die Sitzliege nach Fig. 1 in der Draufsicht von oben und

Fig. 18:

eine Darstellung entsprechend Fig. 1 mit gegenüber Fig. 1 verschobener Beinauflage.

The invention is explained in more detail below on the basis of schematic representations of an exemplary embodiment. Show it:

1 to 5:

a seat bed comprising a seat part, a backrest and a leg support with a first sequence of positions of the leg support;

6 to 8:

1 to 5 with a second sequence of positions of the leg support;

9, 10:

a boom assembly as part of the leg support of Figures 1 to 8.

Fig. 11:

a leg support also as part of the leg support according to Figures 1 to 8.

Fig. 12:

9, 10 with the leg rest support according to FIG. 11;

13, 14:

a leg rest associated with the leg rest according to FIGS. 11, 12 with a controlled locking device;

Fig. 15:

the locking device of Figures 13 and 14.

Fig. 16:

the leg support according to Figures 1 to 8, consisting of the components of Figures 9 to 15.

Fig. 17:

1 in the plan view from above and

Fig. 18:

a representation corresponding to Fig. 1 with respect to Fig. 1 shifted leg rest.

1 to 8 and 17, 18 , a piece of seating and reclining furniture in the form of a seat bed 1 comprises a seat part 2 which is pivotably mounted on a base frame 3 in the direction of a double arrow 4 . A backrest 5 is articulated to the rear of the seat part 2. The pivoting mobility of the backrest 5 relative to the seat part 2 is illustrated by a double arrow 6 . The seat part 2 supports a leg support 7 on the side facing the user. In addition to a leg rest 8 and a leg rest support 32 to be described later in detail and concealed in FIGS. 1 to 8, this includes a boom arrangement 10 via which the unit consisting of leg rest 8 and leg rest support 32 is connected to the seat part 2. The cantilever arrangement 10 extends in the direction of view of the user of the seat bed 1 between the legs (FIG. 17).

A selection of positions in which the leg rest 8 of the Seat 1 can be transferred is the figures 1 to 8 and 18. The sequence according to FIGS. 1 to 5 relates the case that the leg rest 8 from a horizontal Position (Fig. 1) in the lower end position (Fig. 5) is moved. The one executed by the leg rest 8 combined stroke-swivel movement is the result of Forced control of the leg rest 8 by the boom arrangement 10, which is therefore a lifting swivel device is. In Fig. 1 the leg rest 8 is in one position shown in which the user of the seat 1 allows you to take a sedentary rest position. In a the corresponding position is the leg rest 8 in FIG. 18. However, the leg rest 8 is shown in FIG. 18 pushed closer to the seat part 2 than in FIG. 1

The sequence of positions of the leg rest 8 shown in FIGS . 6 to 8 is based on the conditions corresponding to FIG. 2 and ends with a position in which the leg rest 8 can be used to support the knee. This functional position of the leg rest 8 arises both as a result of its positive control by the boom arrangement 10 and also by a setting decoupled from this positive control.

The constructive means that the in Figs. 1 to 8 and 18 illustrated kinematics of the leg support 7 cause 9 or 16 are shown in detail in FIGS.

According to FIG. 9 , the boom arrangement 10 comprises a double-walled rocker arm 11, a drive link 12 and a control link 13. The rocker 11 is articulated to the drive link 12 and the control link 13 via pivot axes 14, 15 . The drive link 12 is provided opposite the rocker 11 with a bearing sleeve 16 . Between the pivot axis 14 and the bearing sleeve 16, a gas spring 17 acts on the drive link 12, which is articulated on the drive link 12. At its end opposite the drive link 12, the gas spring 17 is provided with a bearing eye 18 . Instead of the gas spring 17, for example, a hydraulic cylinder or an electromechanical linear drive can also be used.

The control arm 13 has a fork-like shape and is penetrated by the gas spring 17 in the region of the fork. The fork legs end in bearing eyes 19, 20. The drive link 12 is pivotally mounted on the seat part 2 of the seat bed 1 via the bearing sleeve 16, the control link 13 via the bearing eyes 19, 20 and the gas spring 17 via the bearing eye 18.

The rocker 11 is fixedly connected to a pivot axis 21 at its end remote from the control link 13. A swivel body 22 is pivotable about the swivel axis 21 and has cylindrical half-shells of a locking catch device firmly connected to it at both longitudinal ends of the swivel axis 21, one of which, namely the half-shell 23, can be seen in FIG. 9 on the side facing the viewer.

10 provides an insight into the space between the walls of the double-walled rocker 11. Accordingly, a thrust linkage 24 is housed in this space , which comprises a rear push rod 25 and a front push rod 27 articulated thereon by means of a pivot axis 26 . At its end remote from the pivot axis 26 , the front push rod 27 is pivotally connected to the pivot body 22 at a radial distance from the pivot axis 21. A guide roller 28 sits on the pivot axis 26 , which is guided between guide strips 29, 30 and rolls on a guide track 31 on the guide strip 29. The rear push rod 25 is articulated at its end remote from the pivot axis 26 via a pivot axis at a radial distance from the pivot axis 14 to the drive link 12.

11 shows the leg rest support 32. This is provided on its long sides with parallel guides 33, 34 . Roller tracks 35, 36 are formed on the parallel guides 33, 34. On the outside of legs 37, 38 , the leg support carrier 32 is provided with bearing rollers, of which the bearing roller 39 on the leg 37 is shown in FIG. 11. On their mutually facing sides, the legs 37, 38 are provided in a rotationally fixed manner, each with a half-shell of the locking catch device already mentioned. For the sake of clarity, only the half-shell 40 is shown in FIG. 11, which is attached to the inside of the leg 37 of the leg rest support 32 and which is intended to interact with the half-shell 23 on the swivel body 22 (FIG. 9). The half-shell 40 is penetrated by a bearing opening 41. Bearing openings are also found on the legs 37, 38 of the leg support 32. One of these, namely the bearing opening 42 on the leg 38, can be seen in FIG. 11.

The legrest support 32 is to be mounted on the boom arrangement 10 ( FIG. 12 ). In the assembly position, the bearing openings on the legs 37, 38 of the leg support bracket 32, including the bearing opening 42, are penetrated by the pivot axis 21, which is non-rotatably connected to the rocker 11. In FIG. 12, this is hidden behind the visible bearing roller 39. About the pair of half-shells 23, 40 on one side of the swivel body 22 and via the corresponding pair of half-shells on the opposite side of the swivel body 22, the leg rest 32 projecting from the swivel axis 21 is supported in the direction of gravity (arrow 43 in FIG. 12). At the same time, the pair of half-shells 23, 40 and the second pair of half-shells attached to the opposite side of the swivel body 22 allow the leg rest support 32 to pivot against the direction of gravity (arrow 44 in FIG. 12). The leg rest support 32 can be locked in different pivot positions. In all of these detent positions, the leg rest support 32 is supported against pivoting in the direction of gravity. The locking / locking device which enables this is designed in a conventional manner. As is known, for example, from swivel connections on slatted frames for beds, swiveling the leg support 32 from a previously set swivel position into the swivel end position in the direction of arrow 43 first requires swiveling the leg support 32 in the direction of arrow 44 into a position. in which the locking latch is open and then allows the desired pivoting of the leg support 32 in the opposite direction.

The leg rest 8, as shown in FIGS . 13 and 14 in the view from opposite directions, is to be supported on the leg rest carrier 32. The leg support 8 comprises a support cushion 46 and a cushion base in the form of a support slide 47. The latter has two guide rails 48, 49 . These are equipped on their mutually facing sides with rollers 50, 51 . A brake device 52 is arranged on the guide rail 48 adjacent to the roller 50 and serves as a locking device for fixing the leg rest 8 on the leg rest support 32. A control device 53 is provided for the actuation thereof. The braking device 52 and its control device 53 are shown in isolation in FIG. 15.

Accordingly, the brake device 52 essentially comprises a brake member in the form of a brake shoe 54 and an angled pivot lever 55 with a pivot axis 56. The pivot lever 55 carries the brake shoe 54 at one end. Its pivot axis 56 also serves as an axis of rotation for the roller 50. At a distance of the pivot axis 56 engages a brake spring 57 on the pivot lever 55.

The control device 53 comprises a button in the form of a feeler roller 58 and an actuating linkage 59 which is supported on the one hand on the feeler roller 58 and on the other hand is rotatably mounted on the pivot lever 55 by means of a pivot axis 60 at a distance from the pivot axis 56 thereof.

Furthermore, the control device 53 comprises a manual actuation lever 61 and a further actuation unit 62. The latter consists of a shaft 63 connected to the manual actuation lever 61 in a rotationally fixed manner and a pivot lever 64. The shaft 63 can be rotated about a pivot axis 65 ; the swivel lever 64 can be acted upon on the one hand at a distance from the swivel axis 65 via the shaft 63 and on the other hand is firmly connected to the swivel lever 55 with brake shoes 54. The pivoting lever 64 is acted upon by the shaft 63 via a cam roller 68 which is mounted eccentrically on the shaft 63.

As can be seen from FIGS. 13 and 14, the manual actuation lever 61 and the shaft 63 are rotatably mounted on the support slide 47 of the leg support 8 about the pivot axis 65. The pivot lever 55, whose pivot axis 56 passes through a tab 66 of the support carriage 47, is also rotatably connected to the support carriage 47. Finally, the feeler roller 58 is rotatably mounted on the guide rail 48 with an eccentric axis of rotation.

In the use position, the leg rest 8 is placed on the leg rest carrier 32. The rollers 50, 51 of the leg rest 8 rest on the roller tracks 35, 36 on the leg rest carrier 32. A corresponding roller bearing of the leg rest 8 on the leg rest carrier 32 is obtained by means of the bearing roller 39 and the second bearing roller, not recognizable in FIG Leg support 32. The leg support 8 is guided on the leg support 32 in the direction of a double arrow 67 ( FIG. 16 ) via the parallel guides 33, 34. A free mobility in this direction is prevented by the brake device 52, the brake shoes 54 of which rest on the roller conveyor 35 of the leg rest support 32 when acted upon by the brake spring 57.

Based on the relationships according to FIG. 1, the Gas spring 17 by operating a hand lever provided for this purpose released, the leg support 7 by exercise a pressure acting on the leg rest in the direction of gravity 8 can be lowered from the raised position. at appropriate choice of the counterforce exerted by the gas spring 17 can the lowering of the leg rest 8 with little Carry out effort. So the required Force, for example, from that on the seat part 2 1 user seated with the legs applied become. The leg rest 8 leads simultaneously with its lowering movement a positively controlled swivel movement.

This pivoting movement results from the configuration of the boom arrangement 10 forming a transmission. The pivoting movement of the drive link 12 is converted via the push rod 24 into a pivoting movement of the pivoting body 22 about the pivoting axis 21. The pivoting body 22 also pivots with the latter with respect to the pivoting axis 21 in a rotationally fixed manner connected leg rest carrier 32 and with this the leg rest 8 mounted on the leg rest carrier 32. Thus the leg rest 8 also comes from the initial position according to FIG. 1 into the position according to FIG. 2. The feeler roller 58 hits the floor. Continued action on the leg rest 8 in the lowering direction now has the result that the feeler roller 58 pivots the pivot lever 55 about the pivot axis 56 in FIG. 15 in a clockwise direction via the first actuating linkage 59. As a result, the brake shoe 54 lifts against the action of the brake spring 57 from the previously loaded roller conveyor 35 on the leg rest carrier 32. The brake device 52 is thereby opened. With continued pivoting movement of the leg rest 8 into the positions according to FIGS. 3 to 5, the braking device 52 remains open and the leg rest 8 can move with its rest carriage 47 along the leg rest carrier 32 and thereby back away from the ground. In this way, a blocking of the positively controlled movement of the leg rest 8 is automatically prevented. At the same time, damage to the leg rest 8, which could be associated with its impact on the floor forming an obstacle, is avoided. The leg rest 8 is shown in FIG. 5 in its lower end position. Starting from this position, all that is required to move the leg rest 8 into a position of use is actuation of the gas spring 17. The processes described for FIGS. 1 to 5 then take place in the opposite direction. As soon as the feeler roller 58 clears the ground during the lifting movement of the leg rest 8, the brake spring 57 automatically brings the brake shoe 54 into contact with the associated roller conveyor 35 and thus automatically activates the braking device 52. This then causes the leg rest 8 to move in the direction of the Double arrow 67 immovably locked to the leg support 32.

If the leg support 7 is to be used as a knee support, the leg rest 8 is initially in the position according to FIG Fig. 6 to move. The swivel position shown there Leg rest 8 is supported by the boom assembly 10, i.e. positively controlled, set. With this position of the leg rest 8, the braking device 52 is just still effective. The operator can now the leg rest 8 on its front Capture the end and start from the positively controlled Swivel position decoupled from the positive control in swivel up the position according to FIG. 7. By means of the above Locking device described is the leg rest 8 automatically locked in this position. if necessary it is now possible to adjust the leg rest 8 in the direction of the double arrow 67 in Fig. 7. For this purpose is the user of the manual operating lever 61 in FIG. 15 counterclockwise. Via the swivel lever 64 is then the pivot lever 55 while lifting the Brake shoe 54 from the roller conveyor 35 and under pretensioning the brake spring 57 pivoted about the pivot axis 56. The The braking device 52 is then opened and the leg rest 8 can be compared to the leg support 32 in the desired Move position. With release of the manual control lever 61 takes the brake shoe 54 under the action the previously biased brake spring 57 again its functional position on the roller conveyor 35 and thereby fixed the leg rest 8 on the leg rest support 32. Correspondingly is to be moved when the leg rest 8 is out of its 1 into the position according to FIG. 18 or vice versa to be moved.

As shown in FIG. 8, the seat part 2 of the seat bed 1 can be relative pivoted to the base 3 in different positions become. With the swiveling movement of the seat part 2 accompanied by a corresponding swiveling movement of the whole Leg support 7. Swiveling relative to the seat part 2 is the backrest 5. Fig. 8 shows the seat 1 with a Position of backrest 5, seat part 2 and leg support 7, by the user for taking an ergonomic favorable kneeling work posture can.

Claims (10)

Seating and / or reclining furniture with a seat part (2) and with a leg support (7) which comprises a leg rest (8) and a lifting and swiveling device (10), by means of which the leg rest (8) relative to the seat part (2) can be raised and lowered and can be swiveled in a force-controlled manner about a swivel axis (21) that runs horizontally and transversely to the viewing direction of the user,
characterized in that the leg rest (8) is decoupled from the lifting-swiveling device (10) about a swiveling axis (21) running horizontally and transversely to the viewing direction of the user from the positively controlled swiveling position into at least one different swiveling position and can be fixed in this swiveling position is. Seating and / or reclining furniture according to claim 1, characterized in that the leg rest (8) decoupled from the lifting-swiveling device (10) can be swiveled into at least one swiveling position for knee support and can be fixed in this swiveling position. Seating and / or reclining furniture according to one of the preceding claims, characterized in that the pivot axis (21) of the positively controlled pivot movement of the leg rest (8) coincides with the pivot axis (21) of the pivot movement of the leg rest (10) decoupled from the lifting pivot device (10). 8th). Seating and / or reclining furniture according to one of the preceding claims, characterized in that the leg rest (8) can be fixed in at least one pivot position different from the positively controlled pivot position by means of a releasable locking catch device (23, 40). Seating and / or reclining furniture according to one of the preceding claims, characterized in that the leg support (8) is connected to the lifting and swiveling device (10) via a leg support support (32) which can be decoupled from the lifting / pivoting device (10) and is connected to the leg support (32) is adjustable relative to this. Seating and / or reclining furniture according to one of the preceding claims, characterized in that the leg rest (8) is displaceably guided on the leg rest support (32) and can be fixed in different displacement positions by means of a releasable locking device (52). Seating and / or reclining furniture according to one of the preceding claims, characterized in that the locking device (52) for fixing the leg support (8) to the leg support support (32) can be operated, in particular released, by means of a control device (53). Seating and / or reclining furniture according to one of the preceding claims, characterized in that the control device (53) for the controlled actuation of the locking device (52) for fixing the legrest (8) to the legrest support (32) comprises a button (58) which protrudes in the radial direction of the pivot axis (21) of the positively controlled pivoting movement of the leg rest (8) relative to the leg rest (8) and is connected to the locking device (52) of the leg rest (8) via an actuating device, the button (58) being struck actuates the actuating device in the sense releasing the locking device (52) of the leg rest (8) on an obstacle. Seating and / or reclining furniture according to one of the preceding claims, characterized in that a detachable braking device is provided as a locking device (52) for fixing the leg support (8) to the leg support support (32), with a spring-loaded brake member (54) via which the leg rest (8) can be fixed to the leg rest support (32) and which can be moved from a braking position into a release position by means of an actuating linkage (59) which can be controlled by a button (58) against the action of the spring force applied. Seating and / or reclining furniture according to one of the preceding claims, characterized in that the lifting and pivoting device (10) is designed as a boom arrangement, via which the leg rest (8) or the leg rest support (32) is connected to the seat part (2) and which extends between the user's legs in the direction of the user's gaze.

Images