ES1066089U - Cutter device of a film of laminar material for domestic use (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Cutting device for a film of laminar material for domestic use, of the type comprising an envelope body carrying in its interior a roll (2) of film and an opening (3) for the exit of the film of laminar material that has of cutting means, characterized in that the housing (1) is made in one piece, of flexible material, whose interior dimensions are greater than the initial external diameter of the roll (2), having an upper edge (4) and an edge lower (5) determining the aforementioned opening (3), whose upper edge (4) has an elastic element (6) for retaining the film of sheet material and whose lower edge (5) extends beyond the limit defined by the edge upper (4) and is topped by a cutting element (7) located perpendicularly to the plane defined by the film when exiting the opening (3), arranging the lower edge (5) of a curved surface (8) for guiding the film, curved convex, remaining said surface spaced, at an intermediate point, from the lower area of the elastic element (6) a distance greater than the thickness of the film of sheet material, and in that the device has two closure covers (9) on both sides of the housing which fit snugly on said sides. (Machine-translation by Google Translate, not legally binding)

Description

Cutter device of a film of material laminate for domestic use.

Object of the invention

The present invention relates to a cutting device for dispensing portions of a roll of film of a household laminar material such as a plastic film, aluminum foil or the like.

Background of the invention

A large number of plastic film roll cutting devices, normally transparent, foil or in general materials small thicknesses that are commonly used for Wrap foods of different nature.

Normally such devices have a size considerable to be stored inside the drawers which are usually enabled in conventional kitchen furniture. In in most cases the aforementioned cutter devices comprise at least two pieces or wrapping portions of the roll which are usually articulated with each other along a parallel axis to the axis of the roll, so that it can be opened to introduce the roll inside, an example of the aforementioned provision can be see in the Spanish Utility Model ES-A-1013248 in which it is described a roll holder of lamellar rolls which has a fixing base (1) to the wall and a roll support piece (2) which is divided into two enveloping parts (11 and 14), defining in one of them a jagged edge that serves as a cutting element of the film of material collected in said roll. To contain the roll inside the piece (11) is foldable with with respect to the piece (14) as seen in figure 6.

This type of roll holder has the disadvantage of that its use is conditioned exclusively to its support in the wall with what is necessary and indispensable to have a certain gap of free wall in the kitchen to proceed to its installation. further installation on the wall means having to drill in the same as in the case of needing to change the location of the cutter device leave visible holes in the wall that can Be unsightly.

On the other hand, when the support is constituted proper of the roll by two swinging pieces to each other, to Sometimes when pulling the free end of the film to be cut, proceed to throw more than one side than the other with which the output is decompensated of the desired roll portion of the roll holder and the two pieces are usually lock when trying to push the film against the toothed area producing an irregular cut of the film portion. Other times the film begins to be cut at the ends and since the film retention at the mouth of the roll holder is not effective the initial cutting line is curved and deformed, proceeding to make a crooked and / or curved cut having to discard part of material for not fulfilling the required conditions, with what in Sometimes there is a waste of excessive material.

With the present invention it is intended provide a device that allows to cut the film or film of sheet material, which is not necessary to install on the wall and be small.

Description

The present invention relates to a cutting device of a film of sheet material for use domestic, of the kind that comprise a wrapping body carrier inside a roll of film and an exit opening of the film of laminar material that has cutting means. He enveloping body is characterized because it is made in a single piece, of flexible material, whose interior dimensions are greater than the initial outside diameter of the roll, having a upper edge and a lower edge that determine the opening cited, whose upper edge has an elastic element of film retention of sheet material and whose bottom edge is extends beyond the limit defined by the upper edge and remains finished off in a cutting element located perpendicular to the plane  defined by the film when leaving through the opening, arranging the edge inferior of a curved surface of guiding the film, curved convex, said surface being spaced, at an intermediate point, of the lower part of the elastic element a distance greater than film thickness of sheet material.

Additionally, the device has two closure caps on both sides of the wrapping body that fit tightly on these sides.

In this way, you get a device consisting of a single piece, with which there is no problems of accidental disassembly of the enclosure during removal of sheet material or prolonged use of the device and also the aforementioned configuration allows the dimensions of the device be as small as possible since they will be practically similar to the dimensions, and more specifically to diameter of the roll, thus allowing the device to can be inserted in the kitchen drawer, just as if keep the roll directly in the drawer.

On the other hand, the fact that the body envelope is constituted in a single piece and of a material flexible is essential for the operation of the device since that the aforementioned flexibility means that, before an application of a certain pressure from the user of the upper surface of said body against the lower surface thereof, the element elastic retention is pressed against the guiding surface from the bottom edge, retaining the advance of the film and therefore causing the cutting element that ends at said lower edge optimally cut the film as there are no displacements of the film during the drag operation of the film for cutting, making the cut straight and there are no partial tears of the film and therefore film waste is minimal.

The lower edge may have a hole previous which will be delimited by the curved surface of guided by the film and by the lower portion of the wall that It constitutes the enveloping body.

For its part, the enveloping body may have oval shape, disposing in the back area of greater curvature therein a posterior recess, said recess being located in the part opposite to the part of the enveloping body where it is placed at the film exit opening.

The closure caps on the sides of the body envelope may have two peripheral projections and a central projection located perpendicular to the surface internal of each lid, whose peripheral projections have a shape and  dimensions such that fit respectively in the anterior recess and the posterior hollow defined in the enveloping body and whose central projection is of circular cross-section and of a width greater than the peripheral projections, its diameter being less than the inside diameter of the roll carrying the film sheet material. On the inside of the side covers may have a plurality of reinforcement partitions, located radially with respect to the central projection.

In this way, the mentioned covers close the sides of the enveloping body, ensuring its correct fit mutual through peripheral projections practiced therein, and the existence of the anterior and posterior voids arranged in the enveloping body In addition, the central projection serves as guide stop when it comes to roll rotation during the deployment of the film since said central projections they are inserted in the lateral holes of the roll, normally of cardboard, in which the film is rolled.

The elastic element of the upper edge may comprise a rubber of circular section of reduced thickness that cover the entire length of said edge, providing said upper edge of two "C" shaped partitions for the retention of said rubber.

On the outer surface of the enveloping body delimited between the opening and the back area of greater curvature in which the posterior hollow is arranged internally, they are practiced a plurality of grooves parallel to the axis of the film roll and located closer to the opening than the aforementioned rear area. In addition, on the outer surface located in the lower portion of the lower edge that determines the previous hole can be practice a plurality of grooves parallel to the axis of the roll of film.

The main mission of the aforementioned crevices is to serve as an aid to the grip of the enveloping body by the user's hand, preventing the device from slipping at pull the film to proceed to its cut.

How to use the cutter device It is summarized in the following steps or stages:

one-

We hold the cutter device by If central area with the left hand.

2-

We stretch the film of sheet material with the right hand to extract a portion of film with the desired length (the film comes out through the opening of the device).

3-

Press with the left hand on the center of the cutting device (in the areas where they are practiced the longitudinal grooves) so that the opening longitudinal where the film of the sheet material comes out is closed by the effect of the pressure exerted by the elastic element of retention (rubber) of the upper edge of the opening on the curved surface of the lower edge of said opening.

4-

We make a slight movement in descending direction with the right hand so that the film of sheet material press on the blade of the lower edge of the cutter device and in this way the cut occurs.

Brief description of the drawings

Then it goes on to describe very brief a series of drawings that help to better understand the invention and that expressly relate to embodiments of said invention which are presented as illustrative examples and not Limitations of this one.

Figure 1 represents a perspective view of the cutting device of a film of sheet material for use domestic object of the present invention.

Figure 2 represents a perspective view of the enveloping body that is part of the cutting device object of the present invention.

Figure 3 represents a side view or profile of the enveloping body of figure 2.

Figure 4 represents a perspective view, from inside the cutter device, from one of the covers of closure of the cutting device object of the present invention.

Figure 5 represents a perspective view, from the outside of the cutting device, from one of the covers of closure of the cutting device object of the present invention.

Figure 6 shows a perspective view of large scale of a small portion of the cutting element that forms part of the lower edge of the cutter device object of the present invention

Figure 7 represents a sectional view of the cutter device once inside has been introduced the roll of film, in the resting position of the device.

Figure 8 represents a sectional view of the cutter device once inside has been introduced the roll of film, in the cutting position of the device.

Embodiment of the invention

As shown in the figures the cutter device a film of laminar material for domestic use object of the present invention is composed of a wrapping body (1) that in the present embodiment of the invention materializes in an extruded aluminum profile, logically, of a length greater than the total length of the roll of film (2) content inside.

The device has an open oval shape, it is say it is an envelope formed by a plurality of curves of different radius and open contour through a Generator opening (3) parallel to the axis of rotation of the roll of film, in which said opening determines the passage means of the film for the extraction of the same from the inside of the enveloping body (one). Said opening (3) is crossed or delimited by an edge upper (4) that has two partitions (17-18) with "C" shape, being placed between both partitions a rubber (6) acting as an elastic retention element of the film during the cutting stage of it. The section of said rubber (6) in the The present embodiment of the invention is circular and can be of any other person as long as it allows the retention of film.

In addition the opening (3) is limited by a lower edge (5)) that is understood beyond the defined limit by the upper edge (4), the lower edge of a curved surface (8) of guiding the film at its exit from the body (1) through the opening (3). In this particular case the curve of the surface (8) is convex in order to make a stop with the rubber (6) when a certain pressure is applied with the hand on the body envelope (1). Said curved guide surface (8) together with the own wall (11) that constitutes the enveloping body (1), in its lower portion, determines an anterior hollow (10).

The outer surface of the enveloping body It has two grooved areas, a first zone delimited between the opening (3) and the posterior area of greatest curvature in which, which internally has a rear recess (12), said first zone having a plurality of grooves (19) parallel to the axis of the roll (2) of film and being located more near the opening of the aforementioned rear area.

The cutting device is completed with paths covers (9) embedded in the respective sides of the body envelope (1). More specifically, said caps will have a shape analogous to the shape of the profile that constitutes the body (1), having a pronounced curvature on its outer surface along its entire perimeter to determine a smoothed finish and of great aesthetics of the sides of the cutting device. In the Inner side of both covers (9) there are three projections, two peripheral projections (13-14) located in positions coinciding with the anterior hollow (10) and in the posterior hollow (12) of the enveloping body (1), which logically have a shape similar to these gaps, which in this particular case is oval, said covers (9) have small longitudinal projections (23) to consolidate its retention in the corresponding gaps. Additionally, peripheral projections will have two internal partitions (24-25) that cross each other forming a substantially right angle that serve to stiffen the internal structure of said projections. In addition there is a third projection, a central projection (15) of circular section and of a diameter smaller than the internal diameter of the roll carrying the film. This central projection (15) has a width greater than two perimeter projections and the edge of its free end is rounded into the projection in order to facilitate the introduction therein of the roll (2) film carrier.

The covers (9) additionally have a plurality of partitions (16) for reinforcing the structure of the lid starting from the central projection (15) towards the periphery of the lid (9), radially, until encountering a perimeter skirt (26) determinant of the external curvature of said covers (9). In this embodiment, a total of six partitions are available (16) equidistant, any other number of partitions

Figure 6 shows the shape of cutting element (7) which is approximately in the form of "C" with one of its vertical branches (21) longer than the other (22), said longer branch (21) having a sharp edge in which determines a tooth (28) throughout its entire length. The cutting element (7) will fit into a groove (27), see figure 3, practiced at the free end of the edge lower (5) of the body (1).

Figures 7 and 8 show paths sections of the cutter device including the carrier roll of film inside, in figure 7 the device is in its natural or resting position, however in figure 8, the device is in its working or cutting position, in the which the user's hand puts pressure on the surface upper body (1), said pressure represented by the arrow descending, and due to said pressure the rubber (6) exerts pressure on the curved surface (8) and keeps the film position fixed, represented with dashed line. Therefore when the other The user's hand proceeds to pull the free end of the film that is outside the body (1) when it is fixed by the rubber (6) and the surface (8) the cutting of the film by the cutting element (7) It is done cleanly (without tears) and accurately (following a perfectly straight cut line).

Finally, on the outer surface of the body (1) two groups of slits are practiced (19-20), a first group of slits (19) located at the top bounded by the opening (3) and the rear body (12) and a second group of slits (20) located in the lower portion of the bottom edge (5). These slots (19-20) are all they parallel each other, cover the entire length of the body (1) and They are of slight profanity compared to body thickness (1) and its fundamental mission is to facilitate the grip of said body by the user.

Claims (8)

1. Device for cutting a film of laminar material for domestic use, of the type comprising a wrapping body carrying inside a roll (2) of film and an outlet (3) for the exit of the film of laminar material available of cutting means, characterized in that the wrapping body (1) is made in one piece, of flexible material, whose internal dimensions are greater than the initial outer diameter of the roll (2), having an upper edge (4) and an edge lower (5) determining the aforementioned opening (3), whose upper edge (4) has an elastic element (6) for retaining the film of sheet material and whose lower edge (5) extends beyond the limit defined by the edge upper (4) and is finished off in a cutting element (7) located perpendicular to the plane defined by the film when leaving through the opening (3), the lower edge (5) having a curved surface (8) guiding the film , curved convex, being said super it is distanced, at an intermediate point, from the lower area of the elastic element (6) a distance greater than the thickness of the film of sheet material, and because the device has two closing covers (9) on both sides of the wrapping body that fit tightly on these sides. 2. A cutting device according to claim 1, characterized in that an anterior opening (10) defined by the curved guide surface of the film and by the lower portion of the wall itself (11) constituting the lower edge (5) is defined. enveloping body (1). 3. Cutter device according to claims 1 and 2, characterized in that the enveloping body is oval in shape, a posterior recess (12) being arranged in the rear zone of greater curvature, said recess being located in the part opposite to the part of the enveloping body (1) in which the opening (3) of the film exit is located. 4. Cutter device according to claims 1 to 3, characterized in that the closing covers (9) of the sides of the housing (1) have two peripheral projections (13, 14) and a central projection (15) located perpendicular to the internal surface of each cover, whose peripheral projections (13, 14) have a shape and dimensions that fit respectively in the anterior recess (10) and the posterior recess (12) defined in the housing (1) and whose central projection ( 15) It has a circular cross-section and a width greater than the peripheral projections (13, 14), its diameter being smaller than the inside diameter of the roll (2) carried by the film of sheet material. 5. A cutting device according to claim 4, characterized in that a plurality of reinforcing partitions (16), arranged radially with respect to the central projection (15), are arranged on the inner face of the side covers (9). 6. Cutting device according to the preceding claims, characterized in that the elastic element (6) of the upper edge (4) comprises a rubber of circular section of reduced thickness that covers the entire length of said edge, said upper edge having two partitions (17-18) in the form of "C" for the reception of said rubber. 7. Cutter device according to the preceding claims, characterized in that on the outer surface of the housing (1) delimited between the opening (3) and the rear area of greater curvature in which the rear hollow (12) is arranged internally, they are made a plurality of grooves (19) parallel to the axis of the roll (2) of film and located closer to the opening than of said rear area. A cutting device according to the preceding claims, characterized in that a plurality of grooves (20) parallel to the axis of the roll (2) are practiced on the outer surface located in the lower portion of the lower edge (5) that determines the anterior hollow (10). ) of film.