Severing by tearing or breaking – Severing by manually forcing against fixed edge – With other type severing means
Patent
1981-05-05
1984-01-24
Meister, James M.
Severing by tearing or breaking
Severing by manually forcing against fixed edge
With other type severing means
83171, 83544, 83650, 225 20, 225 21, B65H 3504, B65H 3506
Patent
active
044271441
DESCRIPTION:
BRIEF SUMMARY
This invention relates to a plastics film dispenser.
Because of their transparency, elastic properties, self-adhesive characteristics and extreme thinness, plastics films have proved to be extremely popular for general wrapping purposes, particularly in relation to the wrapping of foodstuffs.
Such films are as stated extremely thin and are wrapped around a tubular core usually of cardboard. The core with a cardboard film is usually housed in a dispenser consisting of a box also of cardboard and one longitudinal edge of the box usually includes a serrated cutting edge to facilitate the severance of a desired length of film from the role.
Such an arrangement has not proved to be entirely satisfactory and because the edge of the film is not normally grasped properly to withdraw it from the roll the film is drawn at an angle across the cutting edge, this causes the film to curl as it is being severed and a portion of the free end frequently contacts another portion of the film being withdrawn from the roll. Because of its self-adhesive characteristics it frequently happens that the contacting surfaces of the film adhere together. The adhering surfaces are extremely difficult if not impossible to separate. This leads to a considerable wastage of film and in some cases the self-adhesive characteristics of the film coupled with the inadequacy of the dispensing containers at present in use has inhibited the use of such films to a considerable extent.
The present invention has for its object the provision of a plastics film dispenser which overcomes the problems encountered with such dispensers at present in use and at the same time provides an inexpensive container which incorporates means whereby a length of film may be correctly withdrawn from a roll and conveniently speedily and accurately severed from the roll with minimum effort.
The plastics film dispenser according to the present invention comprises a support structure rotatably supporting a roll of plastics film therein with guide means in said structure to guide film from said roll to an outlet from said structure, film severing means located adjacent said outlet and a drop plate movable from a position where film being withdrawn from said dispenser is maintained clear of said film severing means to a position where said film is contacted by said severing means to sever a length of film from said roll.
The invention preferably includes means in the dispenser to also rotatably support a roll of material other than film e.g. metal foil, paper or the like therein and includes means whereby a length of material may be conveniently withdrawn from the roll and additional severing means are provided in order that a desired length of the material may be severed from the roll.
One embodiment of the invention will now be described with reference to the accompanying drawings in which:
FIG. 1 is a perspective view, partly in section illustrating a plastics film dispenser according to the invention; and
FIG. 2 is a sectional view on line 1--1 of FIG. 1.
According to the preferred embodiment of the invention, the housing designated generally by the reference 1 which constitutes a support structure is formed of front wall 2, back wall 3, end walls 4 and 5 and a bottom designated generally by the reference 6.
The bottom is conveniently moulded from plastics material and includes a peripheral flange 7 which provides a seat for the front, back and end walls of the housing and located interiorally within the housing are two spaced protuberances 8 and 9 having flat ramp surfaces angled downwardly towards the front of the housing.
The top of the housing is closed by a removable lid 10 having a downturned peripheral flange 11. A portion of the flange at the front of the cabinet has a serrated cutting member 12 fixed thereto.
The front wall 2 is stepped inwardly as at 13 a short distance from each end thereof thereby providing inturned flanges 14 and 15 at each end of the housing in which is formed slots 16 and 17. Supported in the slots is a longitudinal keeper rod 18 having d
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Frederick George C.
Macgrory Wallace J.
EZY Wrap Products Pty. Limited
Groff, Jr. Emory L.
Meister James M.
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