DE7901020U1 - DEVICE FOR ACTIVATING SLIDING AND SWIVELING ELEMENTS OF FURNITURE - Google Patents

Description

P ATE N TAN WA LT. · -Ρ R.-I NQ _V -KLAU S DURM

KARLSRUHE ₍ kuJi-MOTf-L- ^ TR'AS ^ E ijp TELEPHONE 590455

T 1851/79

January 14, 1979

Gebr. Thome KG, Forchheim

J512 Rheinstetten
At the train station

Device for the 3e * ~ ätiqunq of sliding non-pivotable elements of furniture .

The innovation is eimj device for Operation of movable and swiveling elements of furniture.

The innovation is used in cupboard furniture, desks and chests of drawers, insofar as these can be moved and / or have swiveling elements in the form of drawers, pull-out table tops, sliding doors or diving doors.

A wish has recently been expressed, be it for reasons of convenience or representation, To operate the Möbein doors and drawers with motorized aids, so to speak, at the push of a button. After this it has been known for some time to operate electronic devices, especially televisions, remotely, the desire to extend the remote control option to furniture, too, is understandable such devices are often built in. As long as doors and drawers are not opened and closed otherwise than by hand moreover, this must happen in succession, although often there is a need these operations on one or more pieces of furniture

T 1851/79 - "2 -

to be carried out together and at the same time. For the disabled, the operation of doors and drawers can become one Become problem.

It is known that elements of furniture can be moved or pivoted by means of a mechanical central control operated synchronously in the form of cables or push rods, but such actuations often only work poor and they are stiff. Other aids for actuation have not yet become known.

The innovation is based on the task of the movable and / or pivotable elements of furniture by means of motorized To operate aids so that they can be operated without effort and / or remotely.

The problem posed is achieved in that a toothed rack is attached to the element and a geared motor is attached to the furniture is arranged, the pinion is in engagement with the rack.

If the gear motor or its gear is self-locking, it can be advantageous if between the pinion and gear motor a slip clutch is provided. 25th

Two buffers are expediently arranged on the element, facing two limit switches attached to the furniture; here the buffers can sit at the ends of the rack.
30th

I, the gear motor is alls not self-locking, a locking device may be mounted on the actuating device in which is mounted on the furniture a rotary rod which carries one of the rack opposite ^w standing, single-arm lever and at least one pivotal latch which engages in a arranged on the element eyelet intervenes.

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Conveniently, there is provided a spring element between the pivot bolt and the furniture .. _t

Three embodiments of the proposed innovation are shown in the accompanying drawing, based on which the innovation is explained below. Show it:

Figure 1 a secretary with a writing compartment and

· Several drawers, in a cross

cut;

Figure 2 shows a gear motor with an in one

handle with a rack located pinion and a slip clutch, in

a side view;

Figure 3 shows a rear corner of a drawer of the

Secretary according to Figure Ij 20

Figure 4 shows a sliding door of a cabinet, in

a front view;

Figure 5 shows a diving door of a cabinet, in

a horizontal section.

The furniture 1 shown in FIG. 1 is a secretary which has three sliding elements 2 in the form of drawers and a pivotable element 3, namely a cylinder flap. the The cylinder flap is operatively connected to the upper drawer via a swivel arm 4, so that when coming out of the drawer the cylinder flap is pivoted through 90 °.

Is on the upper sliding element 2, parallel to it Shifting direction and below its bottom 5, attached to one side of a rack G, which with her rear end 7 protrudes beyond element 2.

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A geared motor 8 which can be reversed with respect to its direction of rotation is arranged on the piece of furniture 1. This gear motor 8 carries a pinion 9 which is in engagement with the rack 6. Between the gear motor 8 and the pinion 9 - see Figure 2 - a slip clutch 10 is provided.

Two are seated in the area of the two ends of the rack 6. Buffers 11 and 12, which are integral with the rack 6 -can be made. These buffers 11 and 12 have two electrical limit switches attached to the furniture 1 13 and 14 opposite, which cooperate with the buffers 11, 12.

A rotating rod 15 made of metal is provided on the furniture 1 in a space behind the displaceable elements 2. This is perpendicular to the rack 6 and is rotatably mounted in the bottom 16 and the plate 17 of the secretary. The rotating rod 15 carries (see FIG. 3) a one-armed lever 18 in the form of a metal band, which is perpendicular to the longitudinal axis of the rotating rod 15. This lever 18 faces the rear end 7 of the rack 6 with its free end. Continue to wear d? G rotating rod 15 has three swivel bolts 19, and each swivel bolt 19 engages in an eyelet 20 which is arranged on the rear side of the displaceable elements 2 in each case. This is the case when - as shown in FIG. 1 - the drawers are pushed in completely and the rear end 7 of the rack 6 is on the lever 18.

A spring element 21 is provided between the swivel bolt 19 and the piece of furniture 1. It is a tension spring, which on the one hand near the free end of the swivel lock 19 and on the other hand on the rear wall 22 of the furniture 1 is attached.

T 1851/79 · ^{: #} '"''"' -δ-If the gear motor 8 is activated, the element 2 moves forward in the direction of this arrow 2 out of the furniture 1. At the beginning of this displacement, the rotating rod 15 pivots so far under the action of the spring element 21 that the pivot bolt 19 is pivoted out of the eyelet 20 and the element 2 is thereby released. Together with the displacement of the element 2 (the upper drawer), the pivotable element 3 (the cylinder flap) is pivoted up by means of the pivot arm 4.

The element 2 moves out until the buffer 12 hits the limit switch 14 and the gear motor 8 is switched off will. The gear motor 8 can be reversed in its other direction of rotation at the same time. To push back of the displaceable element 2, the gear motor 7 is again put into operation and the displacement is ended as soon as the buffer 11 actuates the limit switch 13. Shortly before the end of the movement of the element 2 pushes the end 7 of the rack 6 against the lever 18, thereby twisting the rotating rod 15 against the Force of the spring element 21, which has to Fol'je, d & ß der Swivel bolt 19 engages in the eyelet 20, so that after the displaceable element 2 has come to a standstill, its rearward Position is locked, i.e. the drawer is locked.

If the efficiency of the transmission of the geared motor 8 is less than 50%, then the transmission is self-locking. this means that the displaceable element 2 can only be pushed out and in with the aid of the geared motor 8 can, and the locking device consisting of rotating rod 15, lever 18, swivel bolt 19 and eyelet 20 is unnecessary. A so designed according to the innovation

** Equipped drawer does not need to be manipulated of a lock, i.e. its design can be chosen completely independently of these technical features, it is not recognizable as such from the outside at first glance.

T 1851/79 -δ-The slip clutch IO allows the sliding Element 2 can be pulled out of furniture 1 without using the gear motor, e.g. in the event of a power failure or push in. With the slip clutch 10 it is also possible, if necessary, to open the drawer quickly by hand insert if there is a desire to do so.

FIG. 4 shows a displaceable element 2 in the form of a member suspended from a guide rail 23 by means of rollers 24 Sliding door indicated, to which a toothed rack 6 is attached is. A geared motor 8, which is operatively connected to the rack 6 with a pinion 9, is on the furniture 1 (not shown) attached.

The innovation can be used just as well for the actuation of diving doors, as shown in FIG. The rack 6 is articulated on the pivot axis 23 of the pivotable and displaceable element 2 (the diving door) and the gear motor 8 is arranged on the furniture 2.

It goes without saying, without further explanation, that the two possible applications shown in FIGS the innovation with the reproduced in Figures 1 to 3 and explained above accordingly constructive Details and extensions can be provided, this also applies to the locking device.

T 1851/79

January 14, 1979

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5 Summary of the reference numbers used

1 Furniture 2 movable element 10 3 swiveling element '4 Swivel arm 5 floor 6th Rack 7th End (of 6) 15th 8th Gear motor 9 pinion 10 Slip clutch 11th buffer 12th buffer 20th 13th Limit switch 14th Limit switch 15th Rotating bar 16 floor 17th plate 25th 18th lever 19th Swivel bolt 20th eyelet 21 Spring element 22nd Back wall 30th 23 Swivel axis

Claims (6)

T 1851/79 - 7-14 January 1979 5 protection claims 1. Device for actuating movable and pivotable elements of furniture, thereby g e <^ indicates that a 'rack (6) is attached to the element (2,3) and a gear motor is attached to the furniture (1) (8) is arranged, the pinion (9) is in engagement with the rack (6). 15th 2. Apparatus according to claim 1, characterized in that g e that a slip clutch (10) is provided between the pinion (9) and the gear motor (8) is * -. 20th 3. fixture; according to claim 1 or 2, characterized in that on the element (2, 3) two buffers (11, 12) are arranged, which face two limit switches (13, 14) attached to the piece of furniture (1). I 25 4. Apparatus according to claim 3, characterized in that g e - I indicates that the buffer (11, 12) to the I ends of the rack (6). I. 5. Device according to one egg of claims 1 to 4, d a - \ 30 characterized by that on the furniture \ (1) a rotating rod (15) is mounted, one of the I One-armed lever (18) facing the rack (6) \ as well as at least one swivel bolt (19) which is in I engages an eyelet (20) arranged on the element (2, 3). j 35 f 6. Apparatus according to claim 5, characterized in that j indicates that between the swivel bolt I (19) and the furniture (1) a spring element (21) is provided I is.