FI93304C - Tear and support scaffold for a hollow core of flammable material on a hollow core - Google Patents

Description

93304

Cutting and storage rack for unwinded material wound on a hollow core. - Avrivnings- och stödställ-Ning för ett pään ihälig kärna Linda utlindbart material.

The invention relates to a cutting and storage rack according to the preamble of claim 1.

For example, racks for kitchen towels today are such that in order to cut the paper, the paper must be torn in the transverse direction of the paper web with one hand while holding the roll in place with the other hand, preventing it from rotating or, more precisely, from unwinding.

Attempting to cut the paper only with a tear-off motion will usually result in the stand tipping over or the paper roll unwinding unnecessarily. However, it would often be necessary to cause the paper to tear apart with one hand, e.g., when the other hand is very dirty or busy with some other activity. Accordingly, it is an object of the present invention to provide an improved stand for a rewindable material wound on a hollow core portion which allows the material in question to be cut with one hand. In addition to the aforementioned roll of kitchen paper, such a rack is suitable for e.g. toilet paper rolls, aluminum foils, household films or other similar materials which have perforation points for cutting the material or which material is relatively easily torn.

In order to achieve the above object, the cutting and storage rack according to the invention is characterized by the features set forth in the characterizing part of claim 1.

Preferred further developments of the invention are set out in the characterizing part of the dependent claims.

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The invention will now be described with reference to the accompanying drawings, in which:

Figures 1-7 schematically show some preferred embodiments of a rack according to the invention, and

Figures 8-11 schematically show exemplary cross-sectional embodiments of a detail of a rack according to the invention.

According to Figures 1-7, the cutting and storage rack 1 according to the invention comprises a leg part 2 and a vertical support 3.

The leg part 2 and the vertical support 3 may, for example, be separate parts which are connected to each other, e.g. by screw fastening, and may have a different manufacturing material or they may be of the same material formed in one piece or fixedly connected in one piece. In the context of this application, the term "vertical support" means a longitudinal support of the core part 10 of the roll of material to be unwound, which in use can also be placed e.g. in a horizontal position or in an oblique position, the term vertical support being used only to simplify matters.

In the first embodiment of the rack according to the invention according to Fig. 1, the vertical support 3 is formed substantially conical, whereby the core part 10 of the material roll 11 can be frictionally gripped with the vertical support 3 at 4. This frictional engagement takes place by pulling the material roll 11 open in the longitudinal direction of the material. and then pulling the paper in the transverse direction towards the base 2, whereby the core part 10 presses tightly against the conical vertical support 3 at said point 4, locking against rotation by friction and allowing the material 11 to be torn off by tearing. The next time the material 11 is rewound, the core part 10 is made to rotate relatively freely around the vertical support 3 by initially jerking the material 11 slightly upwards away from the contact point 4.

Figure 2 shows another embodiment of a stand according to the invention, in which the base part 2 and the vertical support 3 are preferably formed as a unitary structure. The shape of the outer surface of the base part 2 is parabolic or "trumpet-like", and the frictional engagement between the core part 10 and the base part 2 takes place in the region of point 5 as described in connection with Fig. 1.

Figure 3 shows a third embodiment of a stand according to the invention, in which the base part 2 is formed substantially spherically, said frictional gripping taking place in the region of the upper part 6 of the spherical surface.

Figure 4 shows a fourth embodiment of a rack according to the invention, in which the lower part 3a of the vertical support 3 is conical, the upper part 3b being substantially straight, e.g. circular-cylindrical.

The fifth embodiment of the stand according to the invention according to Fig. 5 differs from the embodiment of Fig. 4 mainly in the shape of the stand 2 and in the additional support 12 arranged in the upper part of the vertical support top 3b. The additional support 12 is preferably dimensioned so that it has a slightly smaller outer diameter than the inner diameter D of the core part 10. This additional support 12 reduces the oscillation of the roller 11 when it is unwound.

In the sixth embodiment of the rack according to the invention shown in Fig. 6, the vertical support consists of a conical lower part 3b and a "candle-like" upper part 3b, the largest outer diameter of which is smaller than the inner diameter of the core part 10. The upper part 3b serves as a support similar to the additional part 12 shown in the embodiment of Fig. 5.

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Fig. 7 shows a seventh embodiment of a rack according to the invention, in which the base part 2 comprises a vertical branch 2a provided with a hole 13 for fixing to the wall. In this embodiment, the vertical support 3 is formed as an asymmetrical cone in which one substantially straight side is formed, whereby the roller 11 placed on the vertical support 3 is inclined, facilitating the unwinding of the material. This inclination can also be achieved simply by bending the base part 2, 2a to a suitable angle, in which case any of the above embodiments 1-6 can be fastened to it, either without or with the leg part shown in connection therewith, or the vertical support 3 shown in Fig. 7.

In the above embodiments, the vertical support 3 and the leg part 2 are described as rotationally symmetrical pieces, said frictional adhesion between the core part 10 of the material roll 11 and the vertical support 3, 3a and / or the leg part 2 forming substantially the entire circumference of the core part 10. However, the invention is not limited to such rotationally symmetrical embodiments, but the vertical support and / or the base part can also be formed according to, for example, Figures 8-11. Figures 8-11 show some preferred cross-sectional shapes of the vertical support 3 at the above-mentioned friction grip point between the core part 10 and the vertical support 3.

The present invention is not intended to be limited only to the embodiments described above, but may be practiced in many other ways apparent to those skilled in the art. Essential to the rack according to the present invention is that the vertical support and / or the base part are shaped so that frictional engagement can be provided between the core part and the vertical support and / or the base part to prevent the core part from rotating around the vertical support. This frictional adhesion is achieved by forming a vertical support and / or a base part so as to form an actual or imaginary outer diameter larger than the inner diameter of at least one core part, which provides said frictional adhesion. Actual outer diameter means the largest dimension at a certain cross-sectional point of the upright and / or base when viewed in the radial direction of the core. By outer diameter is meant that said larger outer diameter is considered, taking into account the entire length of the upright and / or base part, said larger diameter being viewed by drawing a circular cylinder around the upright and / or base part laterally transverse to the vertical support and / or base part. wherein the diameter of said imaginary circular cylinder must be larger than the inner diameter of the core part, i.e. the outer diameter of the upright and / or base part need not be larger than the inner diameter of said core part in itself at any cross-sectional point as long as said imaginary circular cylinder satisfies this condition. An example of such an embodiment is the embodiment shown in Fig. 12, in which the vertical support 3 is formed of overlapping spheres 14-17 each having a diameter smaller than said inner diameter D of the core part 10, whereby, for example, placing the lowest sphere 17 laterally with respect to the other spheres 14-16 the diameter D1 of the imaginary circular cylinder (shown in broken lines in Fig. 12) is larger than the inner diameter D of the core portion. In the embodiment of Fig. 12, three friction points are formed in practice in the balls 14 and 17 on the same side as the center axis and the ball 16 in balls 14 and 17.

Claims (4)

1. Cutting and storage position (1) for a flushable material (11) flushed on a hollow core part (10), to which the position includes a supporting part (2) and a vertical support (3), which extends inside the core part, characterized in that it the vertical support (3) and / or the support part (2) at least at one place (4,5,6,7,8,9) has an actual or imagined outer diameter greater than the inner diameter (D) of the core part (10) wherein between the core portion and said larger diameter portion there arises at that location a frictional effect which at least substantially prevents the core portion (10) from rotating about the vertical support (3), whereby the material can be cut with a simple tearing motion. The position according to claim 1, characterized in that the vertical support (3) and / or the support part (2) mentioned at least one place of the larger diameter is formed so that the outer diameter of the vertical support (3) and / or the support part (2) for example, the cutting portion of the core portion (10) is smaller than the inner diameter (D) being the outer diameter of said larger outer diameter, said growing portion being positioned adjacent one end of the core portion with said smaller diameter inside the core portion (10) so that the core portion (10) ), as the material (11) is flushed in the longitudinal direction of the material in the transverse direction in the inclined direction of said opening direction in the vertical support (3) and / or the support part (2) of said tili in the outer diameter in increasing direction, the core part ( 10) by the frictional action of said larger diameter site and at least substantially prevents rotation about the core of the core (10) check support (3), the material can be cut with the help of said tvärgaende movement. Il 9 93304 Position according to Claim 2, characterized in that the vertical support of the vertical support (3) and / or the support part (2) mentioned at the outer diameter has been placed next to the respective end of the core part. Position according to any of the preceding claims, characterized in that the vertical support (3) is additionally provided with at least one additional support position (12), the outer diameter of which is slightly less than the inner diameter (D) of the core part (10), wherein said supporting position (12) substantially decreases the pivot of the roll in lateral art as the core portion (10) rotates about the vertical support (3) while the material (11) is unwound from the roll.