JP2005187015A - Highly safe wrap film housing case - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a highly safe wrap film housing case, which hardly hurts the fingers of a person even if the person touches a serration of the housing case inadvertently with his or her fingers when cutting the wrap film on the serration or carrying the wrap film with the hand, and inflicts a least injury should the serration hurt the fingers. <P>SOLUTION: The wrap film housing case 1 comprises a case body 2, which houses the wrap film 3 rolled into a cylindrical shape, a lid 2b, which is formed rotatably on the case body 2 to cover its opening, and a paper lid piece 2b1, which is connected to the front end of the lid 2b to overlap the front side board 2c of the case body 2. The metal serration 4 for cutting the wrap film 3 is attached to the front end side of the paper lid piece 2b1, where the front end of the lid piece 2b1 is extended to reach between the peaks and bottoms of the sawteeth 4a of the serration 4 in order to avoid the projection of the sawteeth 4a. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a wrap film storage case for storing a wrap film wound in a cylindrical shape used for food packaging or the like.
In particular, the present invention relates to a highly safe wrap film storage case that does not hurt hands or the like during use.

Conventionally, various wrap film storage cases have been put on the market, and new products have been provided to improve usability even now.
As for the wrap film storage case, a rectangular column-shaped paper storage case provided with a long metal saw blade at the open end is the mainstream.
In particular, since the metal saw blade is an important part in cutting the wrap film, several devices that have been devised particularly in the shape of the metal saw blade have been proposed (see Patent Document 1).

Among them, Patent Document 1 uses a peculiar to the shape of the metal saw blade. For example, in the embodiment, the height of the tooth of the metal saw blade (the imaginary line at the top of the mountain and the imaginary line at the bottom of the valley is used. The distance between the lines is 0.5 mm, the tooth inclination angle (the angle between the ridge lines) is 60 °, and the tooth pitch (the distance between the imaginary central lines of the mountains) is 1.08 mm. A metal saw blade is disclosed that has a radius of 0.06 mm and a flat valley that is designed to be 0.5 mm.
By adopting such a shape, it is possible to reduce the risk of damaging a finger or the like, ensuring safety and ensuring cutting performance.

In addition, as a reason which employ | adopts a metal saw blade other than that cutting performance is excellent, the good cutting sound is mentioned.
By the way, market research has confirmed that this cutting sound is also attractive to consumers.

JP-A-8-318935 (columns 3 and 4)

However, even with a saw blade that ensures safety as described above, when cutting the wrap film or carrying the wrap film by hand, the finger is accidentally brought into contact with the blade, and as a result, the cutting edge is In some cases, it cuts into the skin surface and cuts.
In other words, the metal portions of the teeth and valleys of the metal saw blade are exposed, and the entire exposed range of the metal saw blade is wide, and this is because the metal saw bites into the skin surface.

The present invention has been made on the basis of such a technical background, and has been made to overcome the above-described problems of the prior art.
That is, the present invention is difficult to damage even if the finger is accidentally contacted with the saw blade when the wrap film is cut with a saw blade or when the wrap film is held and carried by hand. An object of the present invention is to provide a highly safe wrap film storage case that can suppress the degree of the above as much as possible.

  According to the present invention, (1) a case body in which a wrap film wound in a cylindrical shape is accommodated is formed with a lid body that covers the opening of the case body so as to be rotatable, and the tip of the lid body In the wrap film storage case in which a paper lid piece overlapping the front side plate of the case body is connected, a metal saw blade is provided on the leading end side of the paper lid piece to cut the wrap film, and the paper lid The tip of the piece lies in a wrap film storage case that extends between the crests and troughs of the metal saw blade so as to suppress the protrusion of the metal saw blade.

  In the wrap film storage case according to the present invention, the protruding length from the tip of the tooth of the metal saw blade to the tip of the paper cover piece is 0.3 mm to 0.5 mm. Lies in a wrap film storage case.

  Moreover, this invention exists in the wrap film storage case which set the pitch of the tooth | gear of the said metal saw blade to 2.0 mm-3.0 mm in (3) and the wrap film storage case of Claim 1.

  Moreover, this invention exists in the wrap film storage case of (4) and the wrap film storage case of Claim 1 which extended the protrusion length from the front-end | tip of the said paper cover piece in the both ends of the said metal saw blade. .

  Further, the present invention provides the wrap film storage case according to (5) or claim 4, wherein the finger is placed in the vicinity of both ends of the metal saw blade having the increased protrusion length so that the finger is not cut when the wrap film is cut. It exists in the wrap film storage case which provided the guard.

  In the wrap film storage case according to the present invention, the tip of the paper lid piece is inclined along the longitudinal direction of the case main body, and the paper lid piece is inclined. In addition, the present invention resides in a wrap film storage case in which the metal saw blade is inclined so that the protruding length of the teeth of the metal saw blade is constant.

  In the wrap film storage case according to the present invention, the width of the center side of the paper cover piece is longer than the width of both ends, and the shape of the paper cover piece is combined with the shape of the paper cover piece. The shape of the metal saw blade is determined, and the wrap film storage case in which the protruding length of the tooth of the metal saw blade is constant is present.

  In addition, as long as the objective of this invention is met, the structure which combined said (1) to (7) suitably is also employable.

According to the present invention, a metal saw blade for cutting the wrap film is provided on the front end side of the paper cover piece, and the front end of the paper cover piece is a metal saw blade so as to suppress protrusion of the teeth of the metal saw blade. Therefore, the protruding length of the metal saw blade protruding from the paper cover piece can be reduced.
Therefore, for example, even if a hand is hooked on the metal saw blade when cutting the wrap film, the teeth of the metal saw blade do not pierce the skin deeply.
In addition, since the tip of the paper cover piece is exactly the part that receives the skin, the sticking is further prevented.
Even if the hand is rubbed in the longitudinal direction of the metal saw blade, a deep cut will not be incurred.
Therefore, it can be used safely and safely even by an elderly person, a weakly sighted person, or a child who has difficulty in finger movement.

Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.
(First embodiment)
FIG. 1 is a perspective view showing a wrap film storage case according to the first embodiment of the present invention.
In this wrap film storage case 1, a wrap film 3 wound around a cylindrical paper tube is stored inside a rectangular columnar case body 2.
One of the long sides of the case body 2 is a hinge portion 2a, and the lid body 2b on the upper surface of the case body 2 is rotated around the hinge portion 2a.

A paper lid piece 2b1 that overlaps the front side plate 2c of the case body 2 is suspended from the tip of the lid 2b.
A virgin sheet 2b2 is attached to the paper cover piece 2b1 through a straight line break perforation so as to cover a metal saw blade 4 for cutting the wrap film 3 provided on the front end side of the paper cover piece 2b1. Is provided.
When the virgin sheet 2b2 is cut, the metal saw blade 4 is exposed.
Here, the width of the joint portion 2b3 between the slits forming the perforation (equal intervals) is preferably in the range of 0.4 to 1.0 mm from the viewpoint of bond strength and dust generation.

If it is smaller than 0.4 mm, the binding force is weakened, and there is a risk that the virgin sheet 2b2 will be peeled off unintentionally.
On the other hand, if it is larger than 1.0 mm, when cutting the virgin sheet 2b2, a large amount of debris is left on the paper cover piece side, and the front end of the paper cover piece 2b1 after cutting the virgin sheet 2b2 does not become a linear receiving portion.
When the virgin sheet 2b2 is cut, the tip of the paper cover piece 2b1 extends between the crests and troughs of the teeth 4a of the metal saw blade 4 so as to suppress the protrusion of the teeth 4a of the metal saw blade 4 It becomes.
Therefore, the leading end of the paper cover piece 2b1 is located between the crest and trough of the teeth 4a of the metal saw blade 4, and the protruding length of the metal saw blade 4 protruding from the paper cover piece 2b1 can be reduced.
The tip portion of the paper cover piece 2b1 located between the crest and trough of the tooth 4a of the metal saw blade 4 is a linear receiving portion R.

Thus, since the protruding length of the metal saw blade 4 is reduced and the receiving portion R is formed by the paper cover piece 2b1, the hand is drawn to the metal saw blade 4 when cutting the wrap film 3, for example. Even if it is hung, the teeth 4a of the metal saw blade 4 do not pierce the skin deeply.
Further, since the skin is received by the receiving portion of the paper cover piece 2b1, the skin is surely prevented from being stuck.
Therefore, it does not hurt the finger and can be safely used by elderly people, low vision people, and children.

FIG. 2 is an enlarged view of the metal saw blade 4.
The metal saw blade 4 has a band portion 4b and teeth 4a formed at the end of the band portion 4b.
The teeth 4a are arranged at equal intervals, and the pitch L1 of the teeth 4a is preferably between 2.0 mm and 3.0 mm from the viewpoint of cutting performance.

If the pitch of the teeth 4a is set to be larger than 3 mm, when the wrap film 3 is cut, cracks hardly propagate to the wrap film portion positioned between the teeth 4a and the teeth 4a, and the cutting performance is deteriorated.
As a result, the number of teeth 4a can be reduced and cuts to the finger can be prevented.
When the pitch is smaller than 2.0 mm, the degree of cut when touching the finger increases.

In the figure, the two-dot chain line indicates the position of the tip of the paper cover piece 2b1, and the protruding length L3 from this position to the tip of the tooth 4a is 0.3 mm to 0.5 mm from the viewpoint of safety and cutting performance. The range is selected.
When the protruding length L3 is shorter than 0.3 mm, the cutting performance of the wrap film 3 is deteriorated, but the finger is prevented from being cut.
If the protruding length L3 is longer than 0.5 mm, the cutting performance is improved, but there is a possibility of a finger cut.
However, even if the hand is scratched, it is safe because it can be slightly scratched with such a protruding length.

In addition, as long as the pitch L1 and protrusion length L3 of the tooth | gear 4a are defined as mentioned above, the height L2 of the peak of the tooth | gear 4a can be set to an appropriate length.
By the way, the cutting | disconnection of the wrap film 3 is performed because a crack propagates, after the front-end | tip of the tooth | gear 4a of the metal saw blade 4 cut | disconnected the wrap film 3. FIG.
The front end of the paper cover piece 2b1, that is, the receiving portion R, accurately prevents the wrap film 3 from cracking in an unintended direction.
That is, the receiving portion R of the paper lid piece 2b1 guides the wrap film so that it is cut straight.

Here, the inclination angle θ of the crest of the tooth 4a is preferably in the range of 65 ° or less from the viewpoint of easy grasping of cutting and a cutting sound.
That is, if this range is exceeded, the biting of the teeth into the wrap film 3 becomes worse, and at the same time the refreshing feeling of the cutting sound is reduced.
As described above, this cutting sound cannot be ignored in order to obtain a feeling of achievement in cutting.

Hereinafter, a method for cutting the wrap film 3 will be described.
First, as shown in FIG. 3A, the thumb of the left hand is applied to the paper cover piece 2b1, the case body 2 is held with the left hand, and the cylindrical paper tube around which the wrap film 3 is wound is rotated. Pull the film 3 out of the case body.
At this time, it is preferable to pull out the vicinity of the center of one end of the wrap film 3 while being sandwiched between the thumb and index finger of the right hand.
The wrap film 3 is guided by the upper end of the front side plate 2C and drawn out smoothly.

Next, as shown in FIG. 3B, the lid 2b is closed to the original position while the wrap film 3 is held.
Thus, the wrap film 3 is restrained between the front side plate 2c and the paper lid piece 2b1.

Next, as shown in FIG. 4A, the case main body 2 is twisted in the direction of arrow A in the drawing, and the wrap film 3 is cut from one end to the other end.
Of course, the wrap film 3 may be lifted and cut in the direction opposite to the direction of the arrow A in the figure. It will be appreciated that it is better to twist the body 2.
Moreover, the direction can suppress that the wrap film 3 is wrinkled.

FIG. 4B shows a state immediately after the wrap film 3 is cut.
Thus, wrinkles are not generated in the wrap film 3, and the cut wrap film 3 can be covered with respect to food or the like without distortion.

(Second Embodiment)
FIG. 5 shows a wrap film storage case according to the second embodiment of the present invention.
Compared to the wrap film storage case 1 of the first embodiment, only the shape of the paper cover piece and the shape of the metal saw blade are different.
The paper lid piece 6 a of the case body 6 of the wrap film storage case 5 is inclined at the front end side along the longitudinal direction of the case body 6.
A metal saw blade 7 is disposed on the front end side of the paper cover piece 6a in accordance with the inclination of the front end side of the paper cover piece 6a, and the protruding length of the teeth 7a of the metal saw blade 7 is constant. Is formed.

FIG. 6 is an enlarged view of the metal saw blade 7.
The metal saw blade 7 has a band portion 7b and teeth 7a formed at the end of the band portion 7b.
The teeth 7a are arranged at equal intervals, and the pitch L4 of the teeth 7a and the peak height L5 of the teeth 4a are the same as the pitch L1 of the teeth 4a of the metal saw blade 4 and the peak height L2 of the teeth 4a, respectively. Has been.

In the drawing, the two-dot chain line indicates the tip of the paper cover piece 6a, that is, the position of the receiving portion R, and the protruding length L6 from this position to the tip of the tooth 7a is the same as the protruding length L3 of the tooth 4a. Has been.
The inclination angle θ of the peak of the tooth 7a is the same as that of the tooth 4a.
In the second embodiment, the same effects as in the first embodiment are obtained, and the following effects are further obtained.

That is, when the wrap film 3 is lifted and cut (from the back side to the front side in FIG. 5), so-called lifting and cutting are performed, if the slope is provided in this way, the drawn wrap film 3 does not have to be lifted so much. It can be easily cut from one end to the other end (from the upper side to the lower side in FIG. 5).
Since the so-called cutting start portion (the upper side in FIG. 5) quickly contacts the wrap film 3, cutting is performed sharply.
Further, even when the case body 6 is twisted and cut, the case body 6 can be easily twisted from the front side to the back side in FIG. There is an effect that it can be cut.
Moreover, since both cutting methods cut at a long distance, an excessive load is not applied to the cutting teeth.

(Third embodiment)
FIG. 7 shows a wrap film storage case according to the third embodiment of the present invention.
The wrap film storage case 8 of the third embodiment differs from the wrap film storage case 1 of the first embodiment only in the shape of the paper cover piece and the shape of the metal saw blade.
The paper lid piece 9a of the case main body 9 of the wrap film storage case 8 has a central width longer than the widths at both ends, and the front end of the paper lid piece 9a is formed in a V shape.
Then, the shape of the metal saw blade 10 is determined in accordance with the shape of the paper cover piece 9a, and the metal saw blade 10 is disposed on the leading end side of the paper cover piece 9a.

In the third embodiment, the same effects as those of the first embodiment are obtained, and the following effects are further obtained.
That is, the left wrist holding the wrap film storage case 8 is rotated so that the case main body 9 is rotated from the front side to the back side in the figure and cut from the center side in the wrap film width direction to both ends at once. Cutting can be performed, and the food can be covered quickly without generating wrinkles on the wrap film 3.
The teeth of the metal saw blade 10 protruding from the tip of the V-shaped paper cover piece 9a are relatively easy to contact with a finger or the like, but in the present invention, the protruding length of the teeth is short, so It is difficult to attach.

(Fourth embodiment)
FIG. 8 shows a wrap film storage case according to the fourth embodiment of the present invention. The wrap film storage case 11 of the fourth embodiment differs from the wrap film storage case 1 of the first embodiment only in the shape of the lid.
A V-shaped notch 12a2 is formed in the vicinity of both ends of the paper lid piece 12a1 of the lid 12a of the case body 12.
The metal saw blade 13 disposed in the notch 12a2 has a large protruding length from the tip of the paper lid piece 12a1, and has a wide exposed portion.

Therefore, when the wrap film is lifted and cut, it is possible to give a wrap film at the beginning of cutting, and the cutting can be easily performed.
Both right-handed and left-handed people can enjoy this advantage.

The height direction length L7 of the side surface 12a3 of the lid body 12a perpendicular to the longitudinal direction of the case body 12 is formed to be longer than the height direction length L8 of the paper lid piece 12a1.
Both end sides of the front lid piece 12a1 have the same length as the side surface 12a3 by a certain width.
That is, the side surface 12a3 is bent inward, and a so-called finger guard 12a4 is formed.
Therefore, the presence of the finger guard 12a4 prevents the finger from inadvertently coming into contact with the metal blade 13 that is exposed to the notch 12a2 when the wrap film is cut.

In the fourth embodiment, in addition to the same effects as those of the first embodiment, the following effects are further achieved.
That is, the cutting start of the wrap film can be sharply performed.
Further, since the front lid piece 12a1 covers the upper surface of the metal saw blade 13, a step is formed by the finger guard 12a4 and the metal saw blade 13, and even if the finger passes through the finger guard 12a4 when the wrap film is cut. The finger is not directly caught on the metal saw blade 13, and the finger can be prevented from being cut.

Although the present invention has been described above, the present invention is not limited to the first to fourth embodiments described above, and various other modifications are possible without departing from the essence thereof. Needless to say.
For example, in the above-described first to third embodiments, an example in which the case main bodies 2, 6, and 9 are gripped with the left hand has been described.

Further, for example, in the first to fourth embodiments described above, the example using the metallic metal saw blades 4, 7, 10, 13 has been described. However, the metal saw blade may be ceramic or plastic instead of metal. good.
In short, any film that can accurately cut the wrap film 3 may be used.

FIG. 1 is a perspective view showing a wrap film storage case according to the first embodiment of the present invention. FIG. 2 is an enlarged view of the metal saw blade of FIG. FIG. 3 is an explanatory view showing a method for cutting a wrap film. (A) has shown the state which is pulling out the wrap film, (B) has shown the state which closed the cover body of the case main body, holding the end of a wrap film by hand. FIG. 4 is an explanatory view showing a method for cutting a wrap film. (A) has shown the state at the time of the cutting start of a wrap film, (B) has shown the state immediately after cut | disconnecting a wrap film. FIG. 5 is an explanatory view showing a wrap film storage case according to the second embodiment of the present invention. FIG. 6 is an enlarged view of the metal saw blade of FIG. FIG. 7 is an explanatory view showing a wrap film storage case according to the third embodiment of the present invention. FIG. 8 is an explanatory view showing a wrap film storage case according to the fourth embodiment of the present invention.

Explanation of symbols

1, 5, 8, 11 Wrap film storage case 2, 6, 9, 12 Case body 2a Hinge part 2b, 12a Lid 2c, 12b Front plate 2b1, 6a, 9a, 12a1 Paper cover piece 2b2 Virgin sheet 2b3 Joint part 3 Wrap film 4, 7, 10, 13 Metal saw blade 4a, 7a, 13a Teeth 4b, 7b Band 12a2 Notch 12a3 Side surface 12a4 Finger guard L1, L4 Pitch L2, L5 Tooth height L3, L6 Projection length L7, L8 Length in height direction R Receiver

Claims (7)

A case body in which a wrap film wound in a cylindrical shape is stored is formed with a cover body that covers the opening of the case body so as to be rotatable, and a front side plate of the case body is formed at the tip of the cover body. In the wrap film storage case where overlapping paper lid pieces are connected,
A metal saw blade is provided on the front end side of the paper cover piece to cut the wrap film,
A wrap film storage case, wherein a tip of the paper cover piece extends between a crest and a trough of the teeth of the metal saw blade so as to suppress protrusion of the teeth of the metal saw blade. In the wrap film storage case according to claim 1,
A wrap film storage case, wherein a protruding length from the tip of the tooth of the metal saw blade to the tip of the paper cover piece is 0.3 mm to 0.5 mm. In the wrap film storage case according to claim 1,
A wrap film storage case, wherein the tooth pitch of the metal saw blade is 2.0 mm to 3.0 mm. In the wrap film storage case according to claim 1,
A wrap film storage case characterized in that the protruding length from the tip of the paper cover piece is increased at both ends of the metal saw blade. In the wrap film storage case according to claim 4,
A wrap film storage case, wherein a finger guard is provided in the vicinity of both end sides of the metal saw blade having an increased protrusion length so that the finger is not cut when the wrap film is cut. In the wrap film storage case according to claim 1,
The tip of the paper lid piece is inclined along the longitudinal direction of the case body,
A wrap film storage case, wherein the metal saw blade is inclined in accordance with the inclination of the paper cover piece, and the protruding length of the teeth of the metal saw blade is made constant. In the wrap film storage case according to claim 1,
The width of the center side of the paper cover piece is longer than the width of both end sides,
A wrap film storage case, wherein the shape of the metal saw blade is determined in accordance with the shape of the paper cover piece, and the protruding length of the teeth of the metal saw blade is made constant.

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