CN1982186A

CN1982186A - Thin-film cutter

Info

Publication number: CN1982186A
Application number: CN 200510111403
Authority: CN
Inventors: 曹伟龙; 曹迦
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-13
Filing date: 2005-12-13
Publication date: 2007-06-20

Abstract

A film cutting-off device for the film drawn out of its packing box is composed of a cutting bar with cutter and cutting aids at both sides of cutter and formed by the cutting aid dots arranged at intervals, a notched bar with wide notches and narrow notches at both side of wide notch, and two locators at both ends of said cutting bar and notched bar.

Description

Cut off membrane unit

Technical field

The present invention relates to a kind of daily necessities, particularly cut off membrane unit.

Technical background

Film is used more extensive in daily life, be mainly used in the cleaning of food and fresh-keeping, generally be film to be rolled into tubular be placed in the box, it when using the box that a hand is held the dress film, another hand comes out film from box lira, film is cut off, and the method for cutting off is that a toothed rack is installed on the corner of the box of adorning film now, film is placed on the tooth bar breaks by force.But break film on tooth bar, it is very inconvenient to operate, particularly bigger for the big plastic sheeting difficulty of retractility.Can certainly cut off with scissors, just need vacate a hand in addition and operate with scissors, also inconvenient.Disconnected with lancinating, not only need to vacate in addition a hand, but also because film is soft can be moved, difficulty more operates.

Summary of the invention

The objective of the invention is to provide a kind of film in diaphragm chamber to pass, just can cut off the device of film with the manual manipulation of taking diaphragm chamber in the centre.

The present invention is achieved in that cutting off membrane unit is made up of knife rest and truss; Knife rest is made of cutter, cutting aid, knife rest steady arm, knife rest bar, and cutter, cutting aid and knife rest steady arm are on same of knife rest, and cutting aid is on the both sides of cutter; Truss is made of elongated slot, short groove, truss steady arm and truss bar, and elongated slot, short groove and truss steady arm are on same of truss, and short groove is arranged in the both sides of elongated slot; The edge of a knife towards with long rabbet towards being relative, the direction of cutter is the same with the direction of elongated slot, help the point of contact towards with short notch towards being relative.The thickness of cutter is less than the width of long rabbet, acuminous breach indention on the edge of a knife.Knife rest steady arm, truss steady arm are at the two ends of knife rest and truss.The direction of short groove and elongated slot is different.Cutting aid is formed by the point of contact arrangement that helps of having living space one by one, helps the width of the width at point of contact less than short notch.

This device is connected on the diaphragm chamber, the centre of film from knife rest and truss worn out, operate knife rest and truss respectively, they are slided altogether along steady arm to the centre with thumb and other fingers.When knife rest contacted with truss, steady arm at first contacted, and guaranteed that cutter is inserted in the elongated slot, and the point of contact that helps of cutter both sides is inserted into respectively in the short groove of elongated slot both sides.

Characteristics of the present invention are when truss and knife rest altogether the time, when the edge of a knife will be inserted in the long rabbet, film on the long rabbet can be inserted into the stretching that helps the point of contact of short notch simultaneously on both sides, to take out tighter and tighter unsettled and tighten and be fixed on the long rabbet, even the very big film of the soft and smooth property of retractility, at this moment run into the band sharp-toothed edge of a knife, also, be cut off easily and promptly without any making a concession the sliding leeway of trip.This device simple in structure, can be applied in any type of diaphragm chamber above.

Description of drawings

Fig. 1 is a plan view.Fig. 2 is a lateral plan.Wherein:

(1) truss.(2) lack notch.(3) long rabbet.(4) lack groove.(5) truss bar.(6) truss steady arm.(7) elongated slot.(8) knife rest steady arm.(9) knife rest.(10) cutter.(11) edge of a knife.(12) cutting aid.(13) help the point of contact.(14) space.(15) knife rest bar.(16) film.

The specific embodiment

With reference to accompanying drawing 1, in the identical position, both sides of truss (1) and knife rest (9), truss steady arm (7) is a vertex at truss (1) respectively for truss steady arm (7), knife rest steady arm (8), and knife rest steady arm (8) is a vertex on knife rest (9).Film (16) is in the centre of truss (1) and knife rest (9).The edge of a knife (11) is relative with long rabbet (3), help point of contact (13) relative with short notch (2), help the width of the width at point of contact (13) less than short notch (2), so, help point of contact (13) can be inserted into respectively in the corresponding short notch (2), and short groove (4) is inserted in the space (14) that helps between the point of contact respectively.

With reference to accompanying drawing 2, the process that film cuts off is finished like this.

On knife rest (9) and truss (1), apply a relative power simultaneously respectively with thumb and other finger, make them altogether, because steady arm (7) (8) at first contacts, so they can only be along the position of truss steady arm (7) and knife rest steady arm (8) restriction altogether, guarantee that the edge of a knife (11) is slotting to long rabbet (3), because the thickness of cutter (10) is less than the width of long rabbet (3), so, can be inserted in altogether in the long rabbet (3).Simultaneously, help point of contact (13) to insert to corresponding short notch (2) respectively.

At this moment, film (16) on long rabbet (3), be subjected to being inserted into the promotion that helps point of contact (13) of short notch (2) from both sides, begin from the two sides simultaneously to following stretching, because the obstruction of short groove (4) is arranged, direction about can not be forwards, backwards moves, and can only be simultaneously stretching downwards from the both sides of long rabbet (3), it is tight to take out.

Because the film (16) on elongated slot (5) the right and left is taken out tight below both sides, film (16) on the long rabbet (3) must be unsettled and be tightened on the long rabbet (3), at this moment the band sharp-toothed edge of a knife (11) that film (16) at a touch enters simultaneously, without any the leeway that can make a concession, just cut off at once.

Knife rest (9) and truss (1) separately after, can pull out film (16) again from the centre, repeat above-mentioned action and cut off film.

Claims

1, cutting off membrane unit is made up of knife rest (9) and truss (1), it is characterized in that: knife rest (9) is made of cutter (10), cutting aid (12), knife rest steady arm (8), knife rest bar (15), cutter (10), cutting aid (12) and knife rest steady arm (8) are on same of knife rest (9), and cutting aid (12) is on the both sides of cutter (10); Truss (1) is made of elongated slot (5), short groove (4), truss steady arm (7) and truss bar (6), and elongated slot (5), short groove (4) and truss steady arm (7) are on same of truss (1), and short groove (4) is arranged in the both sides of elongated slot (5); The edge of a knife (11) towards with long rabbet (3) towards being relative, the direction of cutter (10) is the same with the direction of elongated slot (5), help point of contact (13) towards with short notch (2) towards being relative.

2, cut-out membrane unit according to claim 1 is characterized in that: the thickness of cutter (10) is less than the width of long rabbet (3), and the edge of a knife (11) is gone up acuminous breach indention.

3, cut-out membrane unit according to claim 1 is characterized in that: knife rest steady arm (8), truss steady arm (7) are at the two ends of knife rest (9) and truss (1).

4, cut-out membrane unit according to claim 1 is characterized in that: short groove (4) is different with the direction of elongated slot (5).

5, cut-out membrane unit according to claim 1 is characterized in that: cutting aid (12) is formed by point of contact (13) arrangement that helps of have living space one by one (14), helps the width of the width at point of contact (13) less than short notch (2).