DE29802465U1 - Fitting for adjusting a leg-foot part of a lying surface frame in several positions - Google Patents

Description

My file: D 58/11 bt

Fitting for adjusting a leg-foot part of a bed frame in several positions

The invention relates to a fitting for adjusting a leg-foot part of a lying surface frame into several positions, with several levers which are articulated to one another and to the foot part as well as to an outer frame which accommodates the lying surface frame, and a drive lever which can pivot these levers against one another and be rotated by a drive with a horizontal shaft.

Such a fitting is known from European patent application 0 364 394, but it has a structurally complex design in the number and arrangement of the levers, which act against both the leg section and the foot section and interact with one another in a pivotable manner.

Although three adjustment phases are possible, there is no optional phase adjustment in the last phase, so that this fitting is not sufficient for certain leg-foot supports.

The object of the invention is to create a simpler fitting with different adjustment phases that is improved compared to the prior art, whereby in the last phase an optional angular position of the leg and foot sections in relation to each other and to the lying surface level is also possible.

This problem is solved by the characterizing features of claim 1.

The subsequent sub-claims contain design features which represent an advantageous and beneficial further development of the task solution.

The multi-phase adjustment fitting according to the invention enables the leg and foot sections to be adjusted in a simple and safe manner from a horizontal starting position into three different inclined positions relative to each other and to the horizontal lying surface and also allows an additional optional inclination adjustment of the leg and foot sections relative to each other and to the lying surface in the last phase. This has been achieved by increasing the angle positions by changing the stroke size of the drive and by the special design of the levers of the fitting, so that an even better leg and foot support is achieved or variability in the desired inclined position of the leg and foot sections is created.

The entire fitting consists of the motor drive, a drive lever and three setting and adjusting levers, whereby the drive lever and setting lever are fixed to a bearing on the outer frame of the recliner and the two adjusting levers are fixed to a bearing under the foot section. The three levers, i.e. the setting lever and the two adjusting levers, are held detachably in the joint axes that connect them, so that during storage and transport the adjusting levers are fixed to the foot section and the setting lever with drive lever and drive are fixed to the outer frame, which results in convenient pre-assembly and later enables extremely simple connection assembly using two components.

This entire fitting has a high utility value due to its simplicity and safe function as well as its installation options and variable phase setting.

The drawings show an embodiment of the invention, which is explained in more detail below. It shows:

Fig. 1 a schematic side view of a leg-foot part with adjustment fitting for different positions of the leg-foot part relative to each other in the flat initial lying position,

Fig. 2 schematic side views of various adjustment up to 5 positions of the leg-foot part through the fitting.

The fitting for adjusting a leg-foot part (1, 2) of a lying surface frame (3) into several positions has several levers (6 to 8) which are articulated to one another and to the foot part (2) as well as to an outer frame (4) which accommodates the lying surface frame (3), and has a drive lever (5) which pivots these levers (6 to 8) against one another and which can be rotated by a drive (9) with a horizontal shaft (10).

The drive lever (5) is rigidly connected in its shaft (10) to an angle lever (6) as a setting lever.

A first adjusting lever (7) is connected in an articulated manner to this angle lever (6) at its angle vertex and a second adjusting lever (8) is connected in its free lever end.

Both adjusting levers (7, 8) are mounted at a distance one behind the other under the foot part (2).

The angle lever (6) has legs (6a, 6b) of different lengths that form an obtuse angle and is fixed to the drive lever shaft (10) with its longer leg (6a) and accommodates the two horizontal joint axes (11, 12) of the two adjusting levers (7, 8) that are spaced one behind the other in the longitudinal direction of the legs in its shorter leg (6b), which is directed diagonally upwards towards the base part (2).

The two adjusting levers (7, 8) are formed by levers of different lengths, of which the shorter adjusting lever (7) is mounted with one end in the joint axis (11) located at the apex of the angle and with its other end in a joint axis (14) located at a distance from the joint connection (13) of the foot and leg parts (2, 1), and the longer adjusting lever (8) is mounted with one end in the joint axis (12) located in the free end of the angle lever and with its other end in a joint axis (15) located at a greater distance from the joint connection (13) of the foot and leg parts (2, 1) behind the joint axis (14).

The drive lever (5) is designed as an angle lever and is held with the shaft (10) in a bearing bracket (16) attached to the inside of the outer frame (4) and the two adjusting levers (7, 8) are held with their joint axes (14, 15) in a bearing bracket (17) attached under the foot part (2).

The three levers (6, 7, 8) are detachably held in the two joint axes (11, 12) so that the adjusting levers (7, 8) are connected to the bearing bracket (17) and the angle lever (6) is held on the bearing bracket (16) via the shaft (10) and for assembly of the fitting the three levers (6, 7, 8) are connected by the two joint axes (11, 12).

The foot part (2) is connected to the leg part (1) in an articulated manner by a horizontal pivot axis (13) and the leg part (1) is mounted on the outer frame (4) so that it can be pivoted in height via a horizontal pivot axis (18).

With the fitting, the leg section (1) with foot section (2) can be adjusted from an initial position in three phases into leg-foot support positions, which is done by turning the drive lever (5) via the motor drive (9).

Fig. 1 shows the starting position in which the leg and foot sections (1, 2) lie together in a horizontal lying plane.

According to Fig. 2, by extending the slide (9a) of the drive (9), the drive lever (5) with the shaft (10) is rotated at a certain angle and the angle lever (6) with adjusting levers (7, 8) is pivoted upwards so that the leg and foot sections (1, 2) are brought upwards into a slight inclined position (1st phase).

According to Fig. 3, the drive lever (5) has been pivoted further and the leg-foot part (1, 2) has been pivoted up into the 2nd phase via the angle lever (6) and the two adjusting levers (7, 8), in which the leg part (1) assumes a greater upward incline than in the 1st phase and the foot part (2) is higher than in Fig. 2 in approximately the same slight incline.

Fig. 4 shows the 3rd phase with a steeper incline of the leg section (1) and a higher, slightly downward inclined foot section (2).

Here, the drive (9) with its slide (9a) has performed a stroke of 69 mm, which is generally usual; the leg part (1) assumes an inclined position of approximately 43° to the lying surface frame and the foot part (2) has an angle position (β) of approximately 5° inclined downwards from the leg part (1).

In Fig. 5 a modification of the 3rd phase is shown, in which the drive (9) has extended its slide (9a) by a stroke of 87 mm and as a result, via the levers (5, 6, 7, 8), the leg part (1) to the horizontal lying surface frame assumes an angle (α) of 55° and the foot part (2) to the lying surface frame assumes an angle (ß) of 10°.

Claims (5)

Protection claims 1. Fitting for adjusting a leg-foot part of a lying surface frame into several positions, with several levers that are hinged to one another and to the foot part as well as to an outer frame that accommodates the lying surface frame and a drive lever that can pivot these levers against one another and be rotated by a drive with a horizontal shaft, characterized in that the drive lever (5) is rigidly connected in its shaft (10) to an angle lever (6) forming a setting lever, on the angle lever (6) in whose angle vertex a first adjusting lever (7) and in whose free lever end a second adjusting lever (8) is hinged both adjusting levers (7. 8) are hinged one behind the other under the foot part (2). 2. Fitting according to claim 1, characterized in that the angle lever (6) has legs (6a, 6b) of different lengths, enclosing an obtuse angle, and is fixed to the drive lever shaft (10) with its longer leg (6a) and receives the two horizontal joint axes (11, 12) of the two adjusting levers (7, 8) in its shorter leg (6b) directed obliquely upwards towards the base part (2), which are spaced apart one behind the other in the longitudinal direction of the legs. 3. Fitting according to claim 1 or 2, characterized in that the two adjusting levers (7, 8) are formed by levers of different lengths, of which the shorter adjusting lever (7) has one end in the joint axis (11) located in the angle apex and its other end in a joint axis (14) located at a distance from the joint connection (13) of the foot and leg part (2, 1) and the longer adjusting lever (8) has one end in the joint axis (12) located in the free leg end of the angle lever and its other end in a joint axis (14) located in the greater distance from the joint connection (13) of the foot and leg sections (2, 1) behind the joint axis (14) is mounted on the joint axis (15). 4. Fitting according to one of claims 1 to 3, characterized in that the drive lever (5) in the form of an angle lever with the shaft (10) is held in a bearing bracket (16) attached to the inside of the outer frame (4) and the two adjusting levers (7, 8) with their joint axes (14, 15) are held in a bearing bracket (17) attached under the foot part (2). 5. Fitting according to one of claims 1 to 4, characterized in that the three levers (6, 7, 8) are releasably held in the two joint axes (11, 12).