BE1026768B1 - Seating furniture with stand-up aid - Google Patents

Abstract

In order to create a piece of seating furniture with a stand-up aid and a stand-up aid substructure (6), in which the adjustment from the normal position of use to the raised stand-up aid position is carried out by relatively simple mechanical means that allow a particularly lean production of the furniture with high stability and a long service life , which also allow a particularly simple movement and positioning of the entire piece of furniture at any location, which also has a secure stand during the entire adjustment process into the stand-up position and back into the normal position of use and, in particular, an undesired movement of the chair over the rollers during this adjustment process is avoided, it is proposed that the stand-up support substructure (6) has support rollers (11) held between the support foot parts (9) and the rollers (13) on a pivot lever (10) each, which can be pivoted into a support position in which they can be the riot area che facing underside of the stand-up support substructure (6) protrude and stand up on the contact surface, as well as in a rest position in which they are shifted back and have no contact with the contact surface and that the pivot lever (10) or the roller axles via second adjusting levers (12) with a the first adjusting lever (7) are connected in a pivotable manner, by means of which the pivoting into the alternative position takes place.

Description

-1- BE2019 / 5807 Seating furniture with stand-up aid The invention relates to seating furniture with a stand-up aid, consisting of a seating furniture body with functional fittings and with a seat part, a back part, optionally with a swiveling footrest, with fitting parts being attached and / or arranged to the side parts of the seating furniture body, furthermore consisting of a stand-up support substructure, which is articulated to the fitting parts via first adjusting levers, the seating furniture body having protruding feet at the front end in the position of use and the stand-up support substructure at the rear end having rollers that stand on a support surface in the normal position of use, with the stand-up support substructure on front end area has Aufstandsfußteile which are spaced from the Aufstanosfläche in the normal position of use and in a stand-up position are supported on the contact surface, the seating furniture body with seat part and back part by means of the lever from a seat position is shifted in the normal position of use in a raised forward sloping sloping position, in which the feet are spaced from the contact surface.

Such seating furniture is known in the prior art and is widespread. In particular, the function of the stand-up aid is of growing importance for a growing group of users.

-2- BE2019 / 5807 This stand-up aid enables the user to adjust the seating furniture to a raised and forward-inclined position, from which a stand-up, especially for physically handicapped people, is clear compared to the normal position of use in which the seat part touches the floor is approximated and optionally arranged inclined backwards in the direction of the backrest, is facilitated.

In the case of seating furniture with a stand-up aid known in the prior art, the adjustment into the raised stand-up aid position often takes place by means of complex and, at the same time, cost-intensive and high weight adjustment means. Due to the prior art mentioned at the beginning, the present invention is based on the object of creating a seating furniture of the generic type in which the adjustment from the normal position of use to the raised stand-up position is carried out by relatively simple mechanical means, which thereby make the piece of furniture particularly slim at the same time allow high stability and a long service life, which also allow particularly easy moving and positioning of the entire piece of furniture at any location, which also has a secure stand during the entire adjustment process into the stand-up position and back into the normal position of use and, in particular, during this adjustment process unwanted movement of the chair over the castors is avoided.

-3- BE2019 / 5807 To solve this problem, the invention proposes that the stand-up support structure has support rollers held between the support foot parts and the rollers on a pivot lever each, which can be pivoted into a support position in which they are positioned over the underside of the stand-up support structure facing the support surface protrude and stand up on the contact surface, as well as in a rest position in which they are shifted back and have no contact with the contact surface and that the pivot levers or the roller axles are pivotably connected to one of the first adjusting levers via a second lever, by means of which the pivoting into the alternative position he follows.

By means of these pivot levers and adjusting levers according to the invention, a link chain is formed by means of which the seating furniture can be raised or adjusted in a particularly simple manner from the lowered position of use, which is closer to the floor, into a raised position of the seat part of the seating furniture that slopes forward at an angle, In addition, a simple and at the same time positionally secure and positionally accurate adjustment between the various positions is thereby made possible. When pivoting in the position of use in which the seat surface is in the sitting position, the seating furniture stands on support foot parts formed at the front end area and on rollers arranged at the rear end area. In this position, the support rollers according to the invention are, with the aid of the pivot levers arranged thereon, in a position that is slightly spaced from the contact area

-4- BE2019 / 5807 arranged between the feet of the seating furniture body and the rollers at the rear end of the lower part of the stand-up aid of the seating furniture. When the chair is adjusted into the stand-up position, the swivel levers with the supporting rollers arranged on them pivot into a position in which the supporting rollers contact the floor and raise the front area of the seating furniture body so far that the feet arranged at the front end no longer touch the floor, thus In this position, the seating furniture stands on the rollers arranged at the rear end of the stand-up support substructure and the support rollers arranged further forward. After reaching the stand-up aid position, the support rollers are raised again to a position away from the floor and the seating furniture rests on the rollers at the rear end on the one hand and on foot parts arranged on the front of the stand-up aid substructure on the other hand.

In this position, the seat part is raised significantly compared to the position of use and is arranged sloping towards the front so that, in particular, physically handicapped users can get up from the seating furniture significantly compared to conventional seating furniture without a stand-up aid.

When adjusting back from the stand-up position to the position of use, the support rollers arranged on pivot levers pivot again into a position in which the seating furniture stands on the support rollers on the one hand and on the rollers at the rear end on the other, and then when the position of use is reached, in which the seat part touches the floor is approximated and, if necessary, arranged at an angle to the rear of the backrest part,

-5- BE2019 / 5807 the seating furniture stands on the rollers arranged at the rear of the stand-up aid substructure on the one hand and on the feet arranged on the seating furniture body at the front end area on the other.

The arrangement of these pivot levers according to the invention and the actuating levers that interact with them produce a link chain, by means of which the seating furniture can be swiveled safely from the lowered normal position of use into the raised stand-up position and back into the normal position of use in a particularly simple and slender manner.

In particular, the support rollers according to the invention, arranged as part of the articulated chain, which contact the floor and lift parts of the seating furniture exclusively during the adjustment from the position of use to the stand-up position and back in an intermediate position, enable particularly simple adjustment with little effort required.

As a result, for example, motorized actuating drives can be dimensioned smaller than is necessary in the case of solutions known in the prior art.

In addition, the movement of the entire piece of furniture into another position or position by the user is facilitated by this piece of furniture according to the invention, in particular by the fact that rollers are arranged at the rear end by means of which the seating furniture can be rolled into the desired position.

-6- BE2019 / 5807

In particular, it can particularly preferably be provided that the swivel lift! is articulated on its end side facing away from the actuating lever to a lever protruding approximately vertically upward from the stand-up aid substructure.

The free end of this lever protruding from the stand-up support structure forms the pivot axis for the

Swivel lever, at the other end of which the support rollers are arranged.

Furthermore, it can particularly preferably be provided that the seating furniture has an electromotive actuator, by means of which the seating furniture can be adjusted from the normal position of use into the stand-up position and back into the normal position of use.

Such an electromotive actuator enables the adjustment between the different positions of the chair without a user having to apply force or weight shifting for this purpose.

The adjustment can take place, for example, by means of a corresponding hand switch,

wherein the hand switch switches the respective electromotive actuator in order to move the seating furniture into the desired position.

It can also be particularly preferably provided that the

Seating furniture has at least one further electromotive actuator, by means of which the back part and the seat part of the seating furniture can be adjusted between different positions.

-7- BE2019 / 5807 The arrangement of at least one further electromotive actuator represents an additional increase in comfort for the user. For example, the back section can be adjusted between different positions by means of appropriate electromotive actuators or an electromotive actuator can swivel or swing out the footrest, depending on the user's wishes swing in again.

The arrangement of such electromotive actuators is known per se in the prior art and is used to increase comfort for the user. Finally, it can particularly preferably be provided that the second pivot lever is extended at its free end area facing away from the support roller, the second pivot lever having an elongated hole , which forms a guide for a pin protruding from the setting lever and is penetrated by this pin, a tension spring being arranged between the pin and the end region of the extension of the second pivot lever. Such an arrangement of a tension spring ensures, especially when adjusting from the basic position, i.e. from the position of use of the seating furniture, to the stand-up position, that the seating furniture cannot move undesirably over the rollers contacting the ground during adjustment. When adjusting from the position of use to the stand-up position, the tension springs cause the front feet of the seating furniture body to touch the floor during the adjustment, in order to achieve a

-8th-

BE2019 / 5807 unwanted rolling of the chair, effectively preventing,

An exemplary embodiment of the invention is illustrated in the figures and described in more detail below. FIG. 1 shows an exemplary embodiment of the invention in the position of use;

FIG. 2 likewise in an intermediate layer; FIG. 3 likewise in the stand-up aid position; FIG. 4 shows a further exemplary embodiment of the invention with an extended pivot lever 12 and tension spring 19 in the position of use; FIG. 5 likewise in a first intermediate layer;

FIG. 6 the same in a further intermediate position; FIG. 7 likewise in the stand-up aid position;

FIG. 8 shows an enlarged illustration of a detail from FIG. 5, showing the extended second pivot lever 12 together with the elongated hole 16 and the pin 18. The figures show essential parts of a chair with a stand-up aid.

The seating furniture consists of at least one seating furniture body 1 with

-9- BE2019 / 5807 functional fitting and a seat part 2. In addition, the seat furniture consists of a back part 3, which has a swiveling footrest 4 in the exemplary embodiment.

Fitting parts 5 are attached to the side parts of the seating furniture body 1, on which side panels (not shown in the figures) are arranged.

Furthermore, the seating furniture consists of a stand-up support substructure 6 which is articulated to the fitting parts 5 via first adjusting levers 7. The seating furniture body 1 has feet 8 protruding at the front end in the position of use. The stand-up aid substructure 6 has rollers 13 at the rear end. In the normal position of use, in which the seating position of the chair is formed, these rollers 13 stand on a contact surface formed by a floor. In this case, the stand-up aid substructure 6 has at the front end area support foot parts 9, which in this normal position of use are spaced from the support surface. These stand-up foot parts 9 are supported in the stand-up aid position on the stand-up surface, so that in the stand-up aid position the seating furniture stands on the stand-up foot parts 9 on the one hand and the rollers 13 at the rear end of the stand-up aid substructure 6 on the other hand.

The seating furniture body 1 with seat part 2 and back part 3 can be adjusted or adjusted by means of the adjusting lever 7 from a sitting position in the normal position of use to a raised, sloping forward sloping position. In this position, the feet 8, which are on the

-10- BE2019 / 5807 seating furniture body 1 are arranged, spaced from the contact surface. According to the invention, the stand-up aid substructure 6 has support rollers 11 held between the standing foot parts 9 and the rollers 13 on a respective pivot lever 10. These support rollers 11 can be pivoted into a support position in which they protrude beyond the underside of the stand-up aid substructure 6 facing the contact surface and stand on the contact surface. In addition, these support rollers 11, which are held on pivot levers 10, can be pivoted into a rest position in which they are shifted back and have no contact with the contact surface. The pivot levers 10 or, if applicable, the roller axles of the support rollers 11 are connected to one of the first adjustment levers 7 in a pivotable manner via second adjusting levers 12. This second lever 12 is used to pivot into the alternative position.

As can be seen in particular from FIG. 1, in the normal position of use, which forms the sitting position for the user, the seating furniture stands at the front on the feet 8 of the seating furniture body 1 and at the rear on the rollers 13 of the stand-up support substructure 6. Both in the normal position of use according to FIG. 1 and in the stand-up assistance position according to FIG. 3, the support rollers 11 arranged on the pivot levers 10 are spaced from the contact surface, that is to say the floor. Only in an intermediate position, which is shown in Figure 2, pivot the pivot levers 10 into an approximately vertical position in which the support rollers 11 contact the contact surface and already slightly raise the front area of the chair

-11- BE2019 / 5807 intermediate layer according to Figure 2, both the feet 8 of the seating furniture body 1, and the Aufstandsfufteile 9, which are arranged on the stand-up support substructure 6, spaced from the floor or the contact surface.

As a result, an adjustment that requires only small forces is made possible when pivoting between the normal position of use on the one hand and the stand-up position on the other.

After reaching the stand-up aid position, which is shown in Figure 3, the support rollers 11 are pivoted again into a position away from the floor forming the contact area. In this position, the seating furniture stands on the stand-up foot parts 9 on the one hand and the rollers 13 on the other hand, with both the stand-up foot parts 9 and the rollers 13 being arranged on the stand-up aid substructure 6.

A particularly simple adjustment between the different positions of the chair is made possible by means of such a link chain. As can be seen in particular from FIG. 3, the pivot lever 10 is articulated at its end facing away from the setting lever 7 on a lever 14 which projects approximately vertically upward from the stand-up aid substructure 6. As a result, the pivot point of the pivot lever 10 is spaced from the part of the stand-up support substructure 6, which is arranged approximately horizontally to the floor in the basic position, so that the pivot lever 10 can pivot around this pivot point and the seating furniture upon contacting the at the other end of the

-42- BE2019 / 5807

Swivel lever 10 arranged support rollers 11 can be raised.

In addition, the seating furniture can have an electromotive actuator, not shown in the figures, for adjustment from the lowered normal position of use into the stand-up position and back into the normal position of use.

This can act, for example, on an actuator 15 which adjusts the link chain formed and can be arranged between the fitting parts 5 of the seating furniture body 1.

Such an adjustment by means of an electromotive actuator is known per se and serves to increase comfort for the user. It is also known per se to control such an electromotive actuator as required by means of a wired or wireless remote control.

Another, particularly preferred embodiment of the invention is shown in FIGS. 4 to 7 in different positions.

Also shows figure

8 an enlargement of a detail from FIG. 5. In this exemplary embodiment, the second pivot lever 12 is extended at its free end region facing away from the support roller 11 (at 17). The second pivot lever 12 also has an elongated hole 16 in which a pin 18 protruding laterally from the setting lever 7 is arranged.

The pin 18 extends through the elongated hole 16 or at least engages into it.

The slot 16 forms for the

-43- BE2019 / 5807 pin 18 a guide. In addition, a tension spring 19 is arranged between the pin 18 and the end region of the extension 17 of the pivot lever 12. This tension spring 19 serves as a body spring. When adjusting from the position of use, in which the Sitzmôhel rises on the front and rear feet of the seating furniture body 1, the tension spring 19 causes the front feet 8 of the seating furniture body 1 to keep contact with the floor when adjusting to the stand-up position, so that an undesired rolling away, for example during a partial or complete stress is avoided during the adjustment by a user, thus it is ensured at all times that undesired slipping or rolling over the rollers 13 or the support rollers 11 is avoided even when adjusting from the position of use to the stand-up position.

This enables particularly safe operation, in particular when adjusting into the stand-up position, even if a user inadvertently exerts forces acting in the horizontal direction.

When adjusting from the position of use to the stand-up aid position, the seating furniture or the seating furniture body 1 remains on its front feet 8 until the support foot parts 9 of the stand-up aid substructure 6 come into contact with the floor.

The invention is not restricted to the exemplary embodiment, but is variable in many ways within the scope of the disclosure.

"14 - BE2019 / 5807 All individual and combination features disclosed in the description and / or drawing are regarded as essential to the invention.

- 15- BE2019 / 5807 List of reference symbols: 1 seating furniture body 2 seat part 3 back part 4 footrest 5 fitting parts 6 stand-up aid substructure 7 adjusting lever 8 feet from 1 (front) 9 upright foot parts from 6 (front) 10 pivoting levers 11 support rollers (on 10) 12 second adjustment lever! (between 7 and 10) 13 rollers (on 6 at the rear) 14 levers (on 6 and 10} 15 actuator 16 elongated hole on 12 17 extension on 12 18 pin on 7 19 tension spring

Claims (5)

- 16 - BE2019 / 5807 patent claims: 1. Seating furniture with stand-up aid, consisting of a seating furniture body {1} with functional fittings and with a seat part {2}, a back part (3), if necessary with a swiveling footrest (4), with fittings (5) on the side parts of the seating furniture body (1) are attached and / or arranged, furthermore consisting of a stand-up support substructure (6) which is articulated to the fitting parts (5) via first adjusting levers {7}, the seating furniture body (1) having protruding feet (8) at the front end in the position of use and the stand-up support substructure (6) at the rear end has rollers {13} which stand up on a support surface in the normal position of use, the stand-up support support (6) having support foot parts (9) at the front end area, which are spaced apart from the support surface in the normal position of use and in a stand-up position to support oneself on the contact surface, whereby the seating furniture body (1) with seat part (2) and back part (3) by means of the adjusting lever (7) a sitting position in the normal position of use is shifted into a raised sloping forward sloping position, in which its feet {{5) are spaced from the standing surface, characterized in that the Aufstehhil feunterbau {6} between the AufstandsfuBteile (9) and the rollers (13) has support rollers (11) held on a pivot lever (10) in each case, which are pivotable into a support position in which they are positioned over the underside of the -47- BE2019 / 5807 stand-up support substructure (6) protrude and stand on the contact surface, as well as in a rest position in which they are shifted back and have no contact with the contact surface and that the swivel levers (10) or the collen axes via second adjusting levers (12) are pivotably connected to one of the first adjusting levers (7) by means of which the pivoting into the alternative position takes place. 2. Seating furniture with a stand-up aid according to claim 1, characterized in that the pivot lever (10) is articulated on its end side facing away from the Stelihebel (7) on a lever (14) projecting approximately vertically upwards from the stand-up aid substructure (6). 3. Seating furniture with stand-up aid according to claim 1 or 2, characterized in that the seating furniture has an electromotive actuator, by means of which the seating furniture can be adjusted from the normal position of use to the stand-up position and back into the normal position of use. 4. Seating furniture with stand-up aid according to one of claims 1 to 3, characterized in that the seating furniture has at least one further electromotive actuator, by means of which the back part (3) and the seat part (2) of the seating furniture can be adjusted between different positions. 5. Seating furniture with stand-up aid according to one of claims l to 4, characterized in that the second pivot lever (12) is extended at its free end region (at 17) facing away from the support roller (11), - 18- wherein the second pivot lever (12) has an elongated hole (161001960807, which forms a guide for a pin (18) protruding from the adjusting lever {7} and is penetrated by this pin (18), between the pin (18) and the end region of the Extension (17) of the second pivot lever {12} a tension spring {19} is arranged.