NL1035569C2 - Lid opener. - Google Patents

Description

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The invention relates to a device for engaging a screw lid of a holder, for example a pot.

Opening a screw lid of, for example, a glass jar, the contents of which are preserved requires the necessary force. Because underpressure prevails in such a pot, the screw lid is pressed onto the rim of the pot, thereby increasing the friction. This must be overcome when the lid is loosened.

To apply these forces, the user must have sufficient force in the hands as well as sufficiently large hands to engage on the lid. However, this is often not the case with children and the elderly, which means that they cannot unscrew the lid from the pot. It also occurs that even adults with sufficient force in their hands do not get a lid opened because the underpressure in the pot is so high that the friction can no longer be overcome.

To simplify the opening of such rotary covers, numerous tools are available. One of the more well-known tools is a pair of pliers with which the lid can be clamped and sufficient grip can be obtained on the lid. The disadvantage, however, is that such tongs often damage the edges of the lid and their operation is complicated in that on the one hand a squeezing force must be exerted in order to pinch the lid tightly and a rotational movement must be exerted in order to loosen the lid.

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Furthermore, such tools cannot be used by persons who only have one hand.

It is now an object to provide a device with which the above-mentioned disadvantages are reduced and with which the opening of a screw lid of a holder is simplified.

This object is achieved with a device according to the invention, which device comprises: a friction surface; - a roller arranged at a distance from the friction surface, the axis of the roller being parallel to the friction surface.

When using this device, the cover is fitted with one side against the friction surface, while another side of the friction surface is arranged against the roller. Subsequently, the pot including the lid is rotated, as a result of which the roll rotates along the lid and as a result of this rolling movement the lid is clamped between the roll and the friction surface. This provides sufficient grip on the lid to open it.

In an advantageous embodiment, the friction surface is a curved strip. The surface of the strip facing the roller 25 can herein be provided with a friction-increasing layer, such as rubber.

In a preferred embodiment of the invention, the curved strip has a cochleoid shape in longitudinal sectional view. The advantage of this shape is that a cover 30 of any diameter can be used with the device. The cochleoid shaped strip is arranged around the roll, so that the distance between the roll and the active part of the friction surface can vary and thus a large variation of cover diameters can be grasped by the device.

The roller is preferably provided with a friction-increasing layer, such as rubber.

In a further embodiment of the device according to the invention, this mounting plate comprises, on which the roller and the friction surface are arranged, such that the axis of the roller and the friction surface are perpendicular to the mounting plate.

These and other features of the invention are further elucidated with reference to the accompanying drawings.

Figure 1 shows a perspective view of an embodiment of a device according to the invention.

Figure 2 shows the device according to the invention in bottom view.

Figure 1 shows an embodiment of a device 1 according to the invention. This device 1 has a mounting plate 2, with which the device can for instance be attached to the underside of a kitchen cupboard. Holes 3 are provided for this purpose in the mounting plate so that the mounting plate can be fixed to the kitchen cupboard by means of screws.

A curved strip 4 is provided on the mounting plate and furthermore a roller 5. As is more clear in figure 2, the curved strip 4 is arranged perpendicular to the mounting plate 2 and this curved strip 4 has a cochleoid shape. This shape is also referred to as snail-shaped. On the surface of the curved strip 4 facing the roller 5, a layer of rubber 6 is provided which increases the friction. The roller 5 is further also made of a rubber material.

To now unscrew a lid from a holder, a lid D is fitted with the upper surface of the lid against the mounting plate 2 such that it rests against the rubber material 6 of the curved strip 4 and further rests against the roller 5. The cover D is then rotated in the direction of the arrow, as a result of which the roller 5 also rotates and the cover is tightened between the curved strip 4 and the roller 5. By continuing to rotate the holder further, all force 5 will be used to cover the cover loosening the holder.

When the device 1 is arranged on the underside of a kitchen cupboard, both hands can be used to hold the pot and thus unscrew the lid.

As further shown in Figure 2 with dashed lines, lids of different diameters D2, D3 can be grasped with the device and thus be loosened from the relevant holder.

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Claims (6)

Device for engaging a screw lid of a holder, for example a pot, which device comprises: - a friction surface; 5. a roller disposed at a distance from the friction surface, the axis of the roller being parallel to the friction surface. 2. Device as claimed in claim 1, wherein the friction surface is a curved strip. Device as claimed in claim 2, wherein the surface of the strip facing the roll is provided with a friction-increasing layer, such as a rubber. Device as claimed in any of the claims 2 or 3, wherein the curved strip has a cochleoid shape in longitudinal sectional view. Device as claimed in any of the foregoing claims, wherein the roller is provided with a friction-increasing layer, such as a rubber. Device as claimed in any of the foregoing claims, comprising a mounting plate on which the roller and the friction surface are arranged, such that the axis of the roller and the friction surface are perpendicular to the mounting plate. 1035569