GB2030010A

GB2030010A - Driving electric kitchen appliances

Info

Publication number: GB2030010A
Application number: GB7928126A
Authority: GB
Original assignee: ZAKLADY METALOWE PREDOM MESKO
Current assignee: ZAKLADY METALOWE PREDOM MESKO
Priority date: 1978-08-14
Filing date: 1979-08-13
Publication date: 1980-03-26
Also published as: YU186079A; SE7906751L; PL209053A1; GB2030010B; DE2932601C2; DE2932601A1; PL118466B1; FR2433328A1

Abstract

Inside one arm of an L-shaped casing is an electric motor (34) which transmits drive via a belt and pulley transmission to a worm and worm wheel transmission accommodated in the second arm: from the arms power take-offs (2, 5) protrude outside to a working space, the driving shafts being perpendicular to each other. The driving device may be used either as a free-standing one, or built into an item of kitchen furniture in which case it can pivot about supporting pins (10) connected to the top of the item of kitchen furniture, and either available to be used or swung into a recess, held in both positions by means of a friction link mechanisms. <IMAGE>

Description

SPECIFICATION Driving device for a kitchen appliance This invention relates to a driving device for a kitchen appliance, the device can be either freestanding or built into an item of kitchen furniture.

Such a device is known from British Patent Specification No. 1,111,898. The driving device according to the afore mentioned patent specification has a casing which is L-shaped and rotarymounted in the top of an item of kitchen furniture and has two basic attachment power take-offs protruding in one plane with parallel axes and an additional power take-off shaft at right angles to the other power offs.

Still another known driving device built into an item of kitchen furniture is described in Swedish Patent Specification No. 305,298, wherein the driving device has one vertical attachment drive extension and operates with various vertical axis positions.

The device according to the invention has been devised in order to obtain a simple and silentrunning free-standing driving unit rendering it possible for the device to be built into an item of kitchen furniture and, at the same time, rendering it also possible for several working attachments with either vertical or horizontal extensions of the coupling members to be combined in one working space.

According to the invention there is provided a driving device for a kitchen appliance of an automatic kitchen unit including an L-shaped casing accommodating an electric motor coupled with a drive transmission, both the arms of the casing being provided with elements for fastening working attachments, and elements for coupling the said working attachments with the said driving device and the drive transmission comprising a belt and pulleys and a worm wheel.

Embodiments of the invention will now be described, by way of example, with reference to the accompanying drawings, in which: Fig. lisa sectional view of a free-standing driving device for a kitchen appliance; Fig. 2 shows the driving device of Fig. 1 adapted to be built into an item of kitchen furniture; Fig. 3 is a sectional view to an enlarged scale of a detail of Fig. 2; and Figs. 4 and 5 shows the driving device built into two different items of kitchen furniture.

The free-standing device for a kitchen appliance shown in Fig. 1 has, prefereably, a threepart casing 1 consisting of a base 8, a cover 31 and a rear plate 32 connected to one another in such a way that the whole casing is L-shaped.

Cover 31 is a supporting member. To the upper surface of the horizontal arm of the said cover, a bracket 33 is mounted in which an electric motor 34 is accomodated. On the motor shaft a toothed driv ing pulley is mounted, which transmits drive via a toothed belt 6 to a driven pulley mounted at the bottom end of a shaft 7 of a worm situated in the vertical arm of the casing 1.

One of the tubular journals of a worm wheel in mesh with the worm has internal teeth and operates as a coupling 4 for an attachment to be fastened at 2 and driven about a horizontal axis.

On the other hand, a coupling 5 is mounted on the motor shaft for an attachment to be fastened at 3 and driven about a vertical axis.

In full lines in Fig. 2 the base 8 of the casing 1 has a supporting plate 9 mounted thereto. In the rear part of the said supporting plate there are two arms directed upward and fitted with pins 10, rotatably mounted at one end to the said arms, whereas the other ends of the said pins are connected detachably to a frame 11 embracing the cover 31 with a locking system 14 located in the front part of the said frame.

The frame 11 engages the edge of an opening in a working top 13 of an item of kitchen furniture.

On the frame 11 there are fastened both ends of two guides 19 with friction slides 20 mounted on them. Ends of the said slides are mounted in an articulated way to ends of tie rods 21, while the other ends of the tie rods are mounted on journals 35 of the supporting plate 9. In the rear part of the guides 19 there are mounted compression springs 22.

Moreover, the rear part of the guides have a reduced cross section area.

The friction link mechanism 12 serves for closing the driving device to the rest position shown in broken lines, or for opening it to the working position shown in full lines.

In order to close the driving unit to a rest position it is only necessary to tilt it backwards through an angle rendering it possible for a pushbutton 15 (Fig. 3) of the locking system 14 to be depressed.

This causes withdrawal of a bolt 16 from a recess 17 and a slow rotary motion of the driving device around the pins 10 in downward direction. A slow rotary motion of the driving device is ensured by the friction slides 20, which move slowly along the guides 19 rearwards. The frictional action of the said slides 20 takes place in the initial stage of lowering the driving device until the said device comes in contact the springs 22 within the reduced cross section area of the guides 19.

The driving device causes the springs 22 to reduce their length in such a way that it is maintained in a partly opened position. Full closing of the driving device is obtained when suitable pressure has been exerted on the rear plate 32 and when the bolt 16 of the locking system 14 has been introduced into a recess 18 (Fig. 2) corresponding to the rest position and thus has secured the casing.

Opening of the driving device takes place after depression of pushbutton 15 of the locking system 14, primary tilting of the driving device being effected due to an expansion of the springs 22, whereas a full tilting of the driving device to the working position is effected by revolving manually the said driving device around the pins 10 until the bolt 16 of the locking system 14 enters the recess 17 in the working position, thus securing the device in the working position.

In Fig. 4 is shown a floor-mounted item of kitchen furniture having a sidewall 24, a working top 23 mounting the driving device and a hinged flap 25 closeable on the top 23 and the driving device when in its rest position.

In Fig. 5 is shown another floor-mounted item of kitchen furniture having an internal pull-out position 27 running on rollers on roller guides 28 mounted on the external portion and castors 29. The roller guides 28 are provided with stops for limiting the distance that the portion 27 can be pulled out. The internal portion 27 is shown having a vertical wall 30 dividing the interior of the portion 27 into two parts, and a top 26 mounting the driving device. When the driving device is in its rest position the internal portion 27 and the driving device can be stowed within the external portion and under an uninterrupted working top of the external portion.

Claims

1. A driving device for a kitchen appliance of an automatic kitchen unit including an L-shaped casing accommodating an electric motor coupled with a drive transmission both the arms of the casing being provided with elements for fastening working attachments, and elements for coupling the said working attachments with the said driving device and the drive transmissins comprising a belt and pulleys and a worm wheel.

2. A driving device for a kitchen appliance, according to claim 1, wherein the base of the casing includes a supporting plate rotatably mounted by pins to a frame connected additionally to the supporting plate by means of friction-link mechanisms and having a locking system, the frame being adapted to mount the driving device on the top of item of kitchen furniture.

3. A driving device for a kitchen appliance, according to claim 2, wherein the locking system comprises a pushbutton coupled with a bolt directed toward the casing and insertable into a first recess for securing the driving device a working position, and a second recess for securing the driving device in a rest position.

4. A driving device for kitchen appliance, according to claim 2 or 3, wherein on guides of the frictionlink mechanism there are slidable friction slides connected with tie rods to the supporting plate and wherein at the rear part of the said guides there are compression springs and the cross sectional area of the guides is reduced.

5. A driving device for a kitchen appliance, according to claim 2,3 or4, mounted on the top of an item of kitchen furniture with a hinged flap closeable over the top and the driving device when in its rest position.

6. A driving device for a kitchen appliance according to claim 2,3 or 4, mounted on the top of an internal pull-out portion of an item of kitchen furniture, an external portion of the item having roller guides provided with stops for limiting the distance that the internal portion can be pulled out, and the internal portion having rollers engaging the roller guides and castors.

7. The combination of a driving device for a kitchen appliance and an item of kitchen furniture according to claim 6 wherein the said internal portion has a vertical wall dividing the interior of the internal portion into two parts.

8. Afree-standing driving device for a kitchen appliance, substantially as hereinbefore described with reference to Fig. 1 of the accompanying drawings.

9. A driving device for a kitchen appliance adapted to be mounted on the top of an item of kitchen furniture substantially as hereinbefore described with reference to Figs. 2 and 3 of the accompanying drawings.

10. A driving device for a kitchen appliance, according to claim 9, mounted on the top of an item of kitchen furniture, substantially as hereinbefore described with reference to Fig. 4 of the accompanying drawings.

11. A driving device for a kitchen appliance, according to claim 9, mounted on the top of an item of kitchen furniture substantially as hereinbefore described with reference to Fig. 5 of the accompanying drawings.