JP3207150U - Bread knife - Google Patents

Abstract

The present invention provides a knife that can smoothly create a trigger for cutting and drawing when cutting various breads, and can sufficiently suppress the generation of bread chips until the end of cutting. A blade portion 1 of a bread knife 10 is provided with a blade along a longitudinal direction DL on a side surface 1S, and is coupled to a handle portion 2. The blade of the blade part 1 includes a blade edge side wave blade region R1, a flat blade region R2, and a blade base side wave blade region R3. In the blade edge side wave edge region R1, a plurality of first wave blades 3E having concave portions that are smoothly curved and recessed in an R shape from the blade line 1L in the thickness direction DW are distanced d1 along the blade line 1L from the blade edge 1A. It arranges from the place P1 which is only apart toward the blade part center part. In the blade base side corrugated blade region R3, a plurality of second wave blades 4E having the same recesses are moved from the blade base 1B along the blade line 1L by a distance d2 smaller than the distance d1 to the blade portion central portion. It is arranged toward. Only the flat blade 5E extending in the longitudinal direction DL is provided in the flat blade region R2. [Selection] Figure 1

Description

  This invention relates to the structure of a bread knife.

  For example, from the viewpoint of facilitating biting of the blade at the start of cutting of the bread skin, or from the viewpoint of preventing blade spillage with a flat blade, a plurality of blades of the knife portion (also referred to as a blade or blade) are used. There has been proposed a knife or knife in which a portion composed of a sharp serrated blade is provided at two or more locations (see, for example, Patent Documents 1 and 2).

Utility Model Registration No. 3191820 Utility Model Registration No. 3059913

  However, when cutting a knife blade on the surface or surface of food such as bread, a sharp blade with a serrated blade guides the cut. There is a problem in that the trigger is difficult and smooth.

  Such a problem is also a problem that holds true for bread knives for cutting bread that tends to produce chips.

  The present invention was made based on the recognition of such problems, and its main purpose is to smoothly trigger the incision by push-cutting or the incision by pulling regardless of the type of bread. Another object of the present invention is to provide a bread knife that can reduce bread chips to the end of bread cutting.

  A bread knife according to the subject of the present invention is provided with a handle portion gripped by a hand, a blade along the longitudinal direction on at least one side surface, and a blade portion coupled to the handle portion. The blade of the blade part is 1) the blade line from the point separated from the blade edge of the blade part by a first distance along the blade line of the blade part toward the central part of the blade part. A blade edge side wave blade region in which a plurality of first wave blades having concave portions that are smoothly curved and recessed in an R shape toward the thickness direction of the blade portion, and 2) from the blade base of the blade portion Smoothly in an R shape from a position separated by a second distance smaller than the first distance along the blade line toward the central portion of the blade portion and from the blade line toward the thickness direction of the blade portion. The blade base side wave blade region in which a plurality of second wave blades having the concave portions that are curved and recessed are arranged. 3) It has an area between the cutting edge side wave edge area and the cutting edge side wave edge area, and has a flat edge area having only a flat edge extending along the longitudinal direction. To do.

  According to the bread knife according to the subject of the present invention, when cutting various breads, each first wave blade in the blade edge side wave blade region makes it possible to make a smooth and smooth trigger for cutting. Each second wave blade in the original side blade area also makes it possible to create a smooth and smooth trigger for cutting, and each flat blade in the plane blade area is free of bread chips until the end of the cut. Generation can be sufficiently suppressed.

  Hereinafter, various embodiments of the present invention will be described in detail along with the effects and advantages thereof with reference to the accompanying drawings.

It is a top view which shows typically the structure of the one side surface side of the blade part of the bread knife according to Embodiment 1 of this invention.

(Embodiment 1)
FIG. 1 is a plan view schematically showing a configuration of one side surface 1S side of the blade part 1 of the bread knife 10 according to the present embodiment. The blade portion 1 of the bread knife 10 according to the present embodiment has a “single blade” formed along the longitudinal direction Dl of the blade portion 1 on one side surface 1S side. This single-edged bread knife 10 is basically (1) a handle or handle 2 that is gripped by hand, and (2) a blade formed along the longitudinal direction DL on one side 1S side. And a blade portion 1 coupled to the handle portion 2. As an example, the handle portion 2 is made of, for example, a laminated reinforced wood (stainless steel basket) having excellent durability. As an example, the blade portion 1 is made of molybdenum / vanadium (stainless) steel. Of these, the main structural feature of the bread knife 10 according to the present embodiment is the configuration of the blade of the blade portion 1.

  In FIG. 1, the direction DL is the longitudinal direction of the blade portion 1 as described above, the thickness T corresponds to the thickness of the central portion of the blade portion 1, and the direction DT perpendicular to the longitudinal direction DL is the blade. The direction DW perpendicular to the longitudinal direction DL and the thickness direction DT is the width direction of the blade portion 1. For example, the thickness T of the central portion of the blade portion 1 is, for example, about 2 cm (the blade tip side thickness is about 1.5 cm), and the blade span of the blade portion 1 is, for example, about 23.5 cm. The height H of the bread knife 10 is about 4.5 cm. The blade line or blade path 1L of the blade portion 1 is a very front end portion of the portion used for cutting by the blade, and corresponds to the bottom portion in the thickness direction (vertical direction) DT of the blade portion 1.

  As shown in FIG. 1, the blade of the blade portion 1 extends along the longitudinal direction DL from the blade edge (cutting edge or blade tip) 1A of the blade portion 1 toward the blade base 1B which is the tip of the jaw portion 1C. A) The blade edge side wave blade region R1, B) the flat blade region R2, and C) the blade edge side wave blade region R3. The configuration of each region R1, R2, R3 of the blade of the blade portion 1 is as follows.

A) Cutting edge side corrugated blade region R1
First, the blade edge side corrugated blade region R1 is thicker than the blade line 1L from the first point P1 separated from the blade edge 1A by the first distance d1 along the blade line 1L of the blade part 1 toward the center part of the blade part 1. This is a blade region in which a plurality of corrugated first wave blades 3E having concave portions that are smoothly curved and recessed in an R shape toward the direction DT. In this example, six R-shaped first wave blades 3E are arranged, but the number of the plurality of first wave blades 3E is arbitrary. Reference numeral 3ES indicates the bottom surface of the first wave blade 3E. More specifically, the shape of the R-shaped concave portion forming the corrugation of each first wave blade 3E is a sine wave in a longitudinal section when the blade portion 1 is temporarily cut along a plane including both directions DL and DT. The shape corresponds to a half wave. Here, as a numerical example of the first distance d1, the first distance d1 is set to a value within a range of 8 mm ≦ first distance d1 <10 mm, for example. By setting the first distance d1 as described above, the first wave blade having the above-mentioned shape is surely provided on the side closer to the cutting edge 1A of the blade portion 1 whose thickness is much thinner than the thickness T of the center portion of the blade portion 1. 3E can be provided. In other words, the value of the first distance d1 is set so that the first wave blade 3E can be surely provided on the side of the blade portion 1 closer to the blade edge 1A.

B) Flat blade region R2
Next, the flat blade region R2 is a blade region located between the blade edge side wave blade region R1 and a blade base side wave blade region R3, which will be described later, and is a flat blade or a straight blade provided along the longitudinal direction DL. Only the blade 5E is provided. In other words, the flat blade region R2 has only a straight blade extending in the longitudinal direction DL, which does not have any R-shaped concave wave blades corresponding to the first wave blade 3E and the second wave blade 4E described later. A blade region consisting of A bottom surface 5ES of the flat blade 5E shown in FIG. 1 is a flat flat surface inclined at a predetermined angle, and extends along the longitudinal direction DL.

C) Blade side corrugated region R3
The blade base side wave blade region R3 is basically a blade region having a wave blade structure corresponding to the aforementioned blade edge side wave blade region R1. In other words, the blade edge side corrugated blade region R3 is formed on the blade portion 1 from the point P2 away from the blade base 1B by a second distance d2 (<d1) smaller than the first distance d1 along the blade line 1L or the blade path. A blade region in which a plurality of corrugated second wave blades 4E having concave portions that are smoothly curved and recessed in an R shape from the blade line 1L toward the thickness direction DT toward the center portion. In this example, six R-shaped second wave blades 4E are arranged, but the number of the plurality of second wave blades 4E is arbitrary. Reference numeral 4ES indicates the bottom surface of the second wave blade 4E. More specifically, the shape of the R-shaped concave portion forming the wave shape of each second wave blade 4E is a sinusoidal wave in a longitudinal section when the blade portion 1 is temporarily cut along a plane including both directions DL and DT. The shape corresponds to a half wave. Here, as a numerical example of the second distance d2 (<d1), for example, the second distance d2 is set to about a value within a range of 4 mm <second distance d2 ≦ 5 mm. Preferably, the second distance d2 is set to a value corresponding to approximately ½ of the first distance d1. Here, since the thickness of the portion closer to the blade base 1B of the blade portion 1 is sufficiently thicker than the thickness T of the central portion of the blade portion 1, the value of the second distance d2 is set from the following viewpoint. The That is, a) a viewpoint in which the distance between the blade base 1B and the second wave blade 4E located adjacent to the blade base 1B is made as small as possible, and the number of the plurality of second wave blades 4E can be set to be increased accordingly; b) The value of the second distance d2 is set from the viewpoint of enabling the extension dimension along the longitudinal direction DL of the flat blade region R2 made of a flat blade or a straight blade to be set as long as possible.

  In FIG. 1, the extending dimension along the longitudinal direction DL of the flat blade region R2 is larger than the extending dimension along the longitudinal direction DL of the blade edge side wave blade region R1 and the blade edge side wave blade region R3. long. For example, the extension dimension along the longitudinal direction DL of the face blade region R2 is approximately 2.5 times the extension dimension along any longitudinal direction DL of the blade edge side wave edge region R1 and the blade edge side wave edge region R3. Set to the length of

  With the configuration of the blade portion 1 described above, the following advantages or effects can be obtained when various breads are cut using the bread knife 10. That is, 1) When cutting various pans, the first wave blades 3E in the blade edge side wave edge region R1 can smoothly and smoothly make the incision by pressing, and the blade edge side wave blade Each of the second wave blades 4E in the region R3 also makes it possible to create a trigger for incision by cutting smoothly and smoothly. By realizing such smooth push-cutting or drawing, not only soft sandwiches that are difficult to smash with a blade, but also French bread with a hard skin, the bread is easily and reliably cut. In addition, the bread can be cut cleanly and sharply. Further, the user may use the press cutting by the first wave blades 3E in the blade edge side wave blade region R1 in order to trigger the cutting of the knife with respect to the bread surface (skin), or the blade base side. Since the cutting by the second wave blades 4E in the wave blade region R3 may be used, the bread knife 10 having high convenience is realized. 2) On top of that, due to the presence of the flat blade region R2 extending long along the longitudinal direction DL, the user can smoothly cut the blade of the blade portion 1 on the surface of the pan by pushing or cutting. By performing cutting with a flat blade 5E, the bread can be cut with good sharpness while sufficiently suppressing the generation of bread chips until the end of cutting. Suppression of the generation of chips can sufficiently suppress the generation of bread chips by using the bread knife 10 even when cutting various breads of a home bakery where chips are usually easily generated. I can do it.

  The blade portion 1 is mirror-finished from the viewpoint of aesthetics such as good appearance, increased sharpness, and rust prevention.

  Further, the secondary characteristic points on the structure of the bread knife 10 are as follows. That is, on the bottom side of the handle portion 2, a concave portion 2P1, a convex portion 2P2 connected to the concave portion 2P1, and a concave portion 2P3 connected to the convex portion 2P2 are continuously formed. A structure is easily realized in which the handle portion 2 is easily grasped with the hand. The handle portion 2 side portion 1UFP of the upper edge portion 1UP of the blade portion 1 has a planar shape. Therefore, when the user grasps the handle portion 2 with one hand, the user can use the bread knife 10 by placing the thumb of the hand on the handle portion 2 side portion 1UFP which is a flat portion. It is possible and can cut bread stably. In addition, as shown in FIG. 1, the upper edge portion 1UP of the blade portion 1 is smoothly inclined upwardly in a concave shape and an R shape toward the handle portion 2 side portion 1UFP from the center portion thereof. As a result, a relationship of (height H) >> (thickness T of the central portion of the blade portion 1) (for example, a dimensional difference of twice or more) is established. With these configurations, the user can comfortably use the bread knife 10 in a state where the finger of the hand holding the handle portion 2 does not come into contact with the cutting board.

(Modification)
The configuration of the blade part of the bread knife according to the present invention is not only applicable to the single-edged blade part described in the first embodiment, but also a double-edged blade part having blades on both sides of the blade part. It is also applicable to. It goes without saying that the advantages or effects already described in the first embodiment can also be obtained in the bread knife having a double-edged blade according to this modification.

(Appendix)
Although the embodiments of the present invention have been disclosed and described in detail above, the above description exemplifies aspects to which the present invention can be applied, and the present invention is not limited thereto. That is, various modifications and / or variations on the described aspects can be considered without departing from the scope of the invention.

  The present invention is applied to a "bread knife" used for cutting various breads such as a relatively soft sandwich, a relatively hard French bread, or a home bakery bread that is relatively easy to produce chips. It is preferable.

10 Bread cutting knife 1 Blade part 2 Handle part 1L Blade line 1A Blade edge 1B Blade edge 1C Jaw part 1FS Flat blade 3E First wave blade (blade edge side wave blade)
4E 2nd wave blade (blade side wave blade)
5E Flat blade (straight blade)
R1 Cutting edge side wave edge area R2 Flat edge area R3 Cutting edge wave edge area

Claims (2)

A handle portion gripped by hand,
A bread knife with a blade along the longitudinal direction on at least one side and a blade coupled to the handle,
The blade of the blade portion is
1) From the edge of the blade portion along the blade line of the blade portion by a first distance toward a central portion of the blade portion, and from the blade line toward the thickness direction of the blade portion. A blade edge side wave blade region formed by arranging a plurality of first wave blades having concave portions that are smoothly curved and recessed;
2) From the edge of the blade portion toward the center portion of the blade portion from a position separated by a second distance that is smaller than the first distance along the blade line from the base of the blade portion, the blade portion from the blade line A blade-side wave-blade region formed by arranging a plurality of second wave blades having the concave portions that are smoothly curved and recessed in an R shape toward the thickness direction;
3) It is a region between the blade edge side wave blade region and the blade edge side wave blade region, and has a flat blade region having only a flat blade extending along the longitudinal direction. , Bread knife. A bread knife according to claim 1,
The bread knife according to claim 2, wherein the second distance corresponds to approximately half of the first distance.

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