JP2010534090A - Furniture drive - Google Patents

Abstract

The present invention relates to a furniture driving device. The furniture driving device includes a driving unit (1) having an electric motor (2), and a pulling guide for pulling out including a main body rail (10), a central rail (11), and a pulling rail (12). The central rail (11) and the drawer rail (12) are mechanically interconnected and are forcibly controlled. The drive unit (1) drives the central rail (11).
[Selection] Figure 3

Description

  The present invention relates to a furniture driving device. In particular, the furniture drive device includes a drive unit having an electric motor and a drawer deployment guide having a main body rail, a central rail, and a drawer rail, and the central rail and the drawer rail are mechanically and actively controlled with respect to each other. About.

  Such a furniture drive is found, for example, in EP 1323363 A1. The furniture driving apparatus shown therein has a problem that the structure is relatively large. Therefore, the furniture driving device is generally attached to the furniture body, that is, the rear side (rear side) of the carcass between the two drawer deployment guides. However, for various reasons, it is desirable to provide a furniture drive that has a compact structure so that it can be directly attached to the drawer deployment guide. In that case, for example, the drawer unfolding guide and the furniture driving device can be attached as one structure in one step. However, the space in the rear area of the furniture body between the drawer deployment guides will remain vacant.

European Patent Publication EP1323363A1

  The object of the present invention is to provide such a furniture drive device having the features of the premise of claim 1.

  The object is achieved by a furniture drive having the features of claim 1.

  The solution as defined in claim 1 activates the furniture drive for only half the stroke of opening the drawer attached to the drawer rail. As a result, it is possible to make the furniture drive apparatus very compact.

  Further advantageous configurations of the invention are set out in the other claim (s).

  Further advantages and details will become apparent from the drawings and the description relating thereto.

1a and 1b are perspective views of an embodiment of a drive unit of a furniture drive device according to the present invention, showing a cover attachment state and a cover removal state, respectively. FIG. 2 shows an exploded view of the drive unit shown in FIGS. 1a and 1b. FIG. 3 is a diagram of a drawer deployment guide showing the configuration of the drive transmission system between the cable pulley and the drawer rail. 4a and 4b show a perspective view and a detailed view of an embodiment of the drawer unfolding guide with the furniture driving device attached. 5a and 5b show a front view and a detailed view of the drawer unfolding guide shown in FIGS. 4a and 4b. 6a-6c show another perspective view and two detail views of the structure of FIGS. 7a and 7b show another perspective view and a detailed view of the structure of FIGS. 4 and 5. FIG.

  It is envisaged that the furniture drive according to the present invention allows both opening and closing of movable furniture parts (eg furniture flaps or drawers). In the present embodiment, this is achieved by a reversible electric motor.

  FIG. 1a clearly shows the compact structure of the drive unit 1 of the furniture drive device according to the invention. Here, FIG. 1 a shows the housing of the electric motor 2 on the left side, and shows a part of the drive output shaft 4 that extends parallel to the housing of the electric motor 2 and is located on the side of the bottom right side. The drive shaft 3 of the electric motor 2 not seen in FIG. 1a extends along a conceptual axis 3 '. The drive output shaft 4 extends along a conceptual axis 4 '. In this embodiment, the conceptual shafts 3 'and 4' and their corresponding drive shaft 3 and drive output shaft 4 extend side by side and in parallel relation to each other.

  In FIG. 1b, the housing 12 has been removed and the transmission (transmission mechanism) 5 can be seen. The detailed structure of the drive unit 1 will be described with reference to the exploded view of FIG.

  The drive transmission system starts with an electric motor 2 having a drive shaft 3. The drive shaft 3 is connected to one side of a meshing clutch 14 having sound decoupling means. The other side of the meshing clutch 14 is connected to a worm (worm) 15. The gears 16 to 19 form a step-down mechanism (deceleration mechanism) 6 of the transmission 5. In this case, the worm 15 meshes with the gear 16 provided on the shaft 20 that is non-rotatably connected to the gear 17. On the other hand, the shaft 20 is provided between the housing parts 21 and 22. The gear 17 meshes with the gear 18, and the gear 18 engages with the gear 19. Thus, the rotational motion of the worm 15 that occurs around the vertical axis is converted to the rotational motion around the horizontal axis via the gears 16-18. In that case, the gear 19 again rotates around the vertical axis, which extends in a laterally parallel relationship with respect to the original vertical axis. The gear 18 is also provided between the housing parts 21 and 22 by the shaft 23. A spacer 25 in the form of a sleeve is disposed between the gear 19 and another housing part 24. In the drive transmission system, an overload clutch 7 formed by a thrust bearing 27 and a component 28 and a freewheel clutch 8 braked by a brake 29 are disposed downstream of the step-down mechanism 6. In that case, the transmission 6 cooperates with the clutch 7 via the drive output part 26. The drive output shaft 4 is attached to a freewheel clutch 8. A cable pulley 30 of a cable line assembly 9 (not shown in FIG. 2) is attached to the drive output shaft 4, and a driving force is transmitted to the furniture drive device 1 through the pulley.

  FIG. 3 shows a further configuration of the drive transmission system, showing a furniture body or carcass rail 10 attached to the carcass, a central rail 11 and a drawer rail 12 connected to the drawer. The central rail 11 and the drawer rail 12 are connected together in a known manner by active or forced control so that the result of the movement of the central rail 11 is a corresponding movement of the drawer rail 12. In that case, the active control arrangement includes a cable line assembly 32 extending between the two pulleys 31 and an interlocking member 33 fixedly coupled to the cable line assembly 32. The interlocking member 33 is coupled to the drawer rail 12 via a coupling 34. Another interlocking member 42 is fixedly connected to the cable line assembly 32. The interlocking member 42 is fixedly connected to the main body rail 10 by a tongue piece 43 (see FIG. 7b).

  The driving of the central rail 11 is performed by an interlocking member 35 fixedly connected thereto and also fixedly connected to the cable line assembly 9. The cable line assembly 9 can be driven by a cable pulley 30. In this case, the cable line assembly 9 further operates via a turning pulley 36 that does not have any drive function.

  Therefore, the driving force of the drive unit 1 is transmitted from the drive output shaft 4 to the interlocking member 35 and the central rail 11 via the cable pulley 30 and the cable wire assembly 9. Thus, the central rail 11 is moved back and forth in parallel to the stationary main body rail 10 in accordance with the operation direction of the cable wire assembly 9. The movement of the central rail 11 is transmitted to the drawer rail 12 and the drawer (not shown in FIG. 3) connected to the drawer rail 12 through active control (parts 31 to 34, 42 and 43). Accordingly, the drawer can reciprocate between the fully closed position and the fully opened position of the furniture body as required by the furniture driving device 1.

  4a and 4b show two stroke measuring devices, one consisting of a potentiometer 37 and a control member 38 and the other consisting of a potentiometer 39 and a gear mechanism 40. The signals of the process measuring devices are sent to a control device (not shown) of the furniture driving device, and the furniture driving device is controlled according to these signals. In particular, a touch latch function can be realized. That is, as soon as the movement of the furniture part (here, the drawer) caused by the user is detected by one of the stroke measuring devices, the control device can activate the drive unit 1 of the furniture drive device.

  In this case, the control member 38 of the first stroke measuring device is connected to the central rail 11 via the component 41, whereby the position of the central rail 11 can be determined (determined). Since the drawer rail 12 is connected to the central rail 11 via the active control arrangement, the position of the drawer rail 12 can also be determined indirectly. It can be used for the touch latch function associated with opening the drawer. After a predetermined distance (movement), the control member 38 and the component 4 are separated.

  The second stroke measuring device can be used for a touch / latch function related to a drawer closing operation. The potentiometer 39 of the second stroke measuring device is connected to the drive output shaft 4 via the gear mechanism 40 and can determine (determine) the position of the drawer rail 12.

  5a and 5b show front views of the drawer deployment guide.

  FIGS. 6 a-6 c show the drawer rail 12 in a partially extended state (approximately the central position), which partially shows the central rail 11. In particular, not only the turning pulley 31 (see FIG. 3) but also the cable assembly 32 in an active control configuration can be seen. In addition, on the left hand side of FIG. 6b, the turning pulley 36 attached to the body rail 10 and the cable line assembly 9 can be seen.

  7a and 7b show the drawer deployment guide with the drawer rail 12 and the central rail 11 fully retracted. In particular, FIG. 7 b shows another (another) turning pulley 31 in an active control configuration. Further, the arrangement of the interlocking member 42 on the tongue 43 connected to the main body rail 10 can be seen.

DESCRIPTION OF SYMBOLS 1 ... Drive unit 2 ... Electric motor 3 ... Drive shaft 4 ... Drive output shaft 5 ... Transmission (transmission mechanism)
6 ... Step-down mechanism (deceleration mechanism)
7 ... Overload clutch (consisting of thrust bearing 27 and component 28)
8 ... Freewheel clutch 9 ... Cable assembly 10 ... Main body rail 11 ... Center rail 12 ... Drawer rail

Claims (6)

A drive unit having an electric motor;
A furniture drive device comprising a main body rail, a central rail and a drawer deployment guide comprising a drawer rail, wherein the central rail and the drawer rail are mechanically and actively controlled relative to each other,
The furniture drive device, wherein the drive unit (1) drives the central rail (11). The electric motor (2) has a drive shaft (3) coupled to a drive output shaft (4) of the drive unit (1),
The said drive output shaft (4) is provided so that it may extend at least substantially parallel with respect to the said drive shaft (3) by the side of the said electric motor (2). Furniture drive.   The drive unit (1) includes a speed change mechanism (5), and the speed change mechanism (5) includes a speed reduction means (6), an overload clutch (7), and / or a free wheel clutch (8). The furniture drive device according to claim 1 or 2.   The furniture driving device according to any one of claims 1 to 3, wherein the driving unit (1) is always connected to the central rail (11).   5. The furniture drive according to claim 4, wherein the drive unit (1) is connected to the central rail (11) via a cable line assembly (9).   The electric motor (2), the optional speed reduction mechanism (5), and the drive shaft (4) have a longitudinal length of the drive unit (1) depending on a longitudinal length of the electric motor (2). The furniture driving device according to any one of claims 2 to 5, wherein the furniture driving device is configured to be substantially provided.

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