JPH0445632Y2 - - Google Patents

Description

[Detailed explanation of the invention] <Purpose of the invention> Industrial application field This invention relates to a peeler for vegetables, etc.
A peeler for vegetables, etc., in which the blade is made of ceramic and is mounted between a pair of branched branches integrally projecting from the tip of the handle, leaving a gap for the peel to be discharged after cutting. Pertains to.

BACKGROUND ART Conventionally, the outer skin of vegetables, fruits, etc. has sometimes been peeled with a kitchen knife or knife, but usually a peeler is used. A normal peeler has a plate-shaped steel knife attached to the tip of a wooden handle, leaving a gap for removing the skin, etc. This knife peels the outer skin of vegetables, etc. After being peeled off, it is discharged outside through a discharge gap. A peeler with this structure has a blade at the tip made of iron such as a steel plate, and the blade is fixedly attached to the tip of the handle. For this reason, the blades corrode due to moisture and acids contained in vegetables, etc., resulting in extremely short lifespans and unsanitary conditions.When the cutting force decreases due to wear and tear on the cutting edge, a new cutting edge is created by grinding. Because it is impossible to do so, peelers are often discarded even though the rest of the peeler is fully usable.

In contrast, recently, ceramics such as ZrO ₂ and Al ₂ O ₃ have been developed as materials with high hardness and strength, and knives and the like made of these ceramics have been proposed. At least the edge of this knife is made of ceramic, so compared to knives made of steel or iron, there is very little wear and tear on the edge, and it is also resistant to moisture and acid from vegetables, etc. Although the price is a little high, it is extremely good.

Therefore, it is conceivable to replace the blade part of the peeler with a ceramic blade made of ceramic. Unlike a knife, the peeler is structured to have a contact surface forming the back surface of the tip of the handle, a discharge gap for discharging the skin after cutting, and a cutting blade for cutting the skin, as described above. There is a need. Therefore, when replacing the cutter part with a ceramic cutter, adhesive must be used to attach it, but from the viewpoint of food processing, it is preferable to limit or eliminate the use of adhesives as much as possible. . From this point of view, when replacing ceramic cutlery, it is necessary to consider the manner in which it is attached to the tip of the handle so that it is compatible with the properties of ceramic, but many problems remain in meeting this requirement. Furthermore, ceramic cutlery has low impact strength, and the cutter part tends to break due to impact when cutting leather or falling, and unless this point is improved, it cannot be put to practical use. For this reason, although the ceramic cutter has the above-mentioned excellent effects, a peeler equipped with the ceramic cutter has not yet been put into practical use.

Problems to be Solved by the Invention This invention aims to solve the above-mentioned drawbacks, specifically, problems in the mounting structure when installing ceramic cutlery without using adhesives, The purpose is to solve the structural problem of ceramics, which compensates for its extremely low impact strength.

<Structure of the invention> Means for solving the problem and its operation In other words, the vegetable peeler according to the invention is a vegetable peeler in which a contact surface and a cutter are attached between a pair of branched branches so as to leave a discharge gap between them. In this peeler, each branch branch is made of an elastic material such as synthetic resin, and the blade is made of ceramic, and the cutting edge of the ceramic blade is inside the horizontal level of the contact surface. and located at a position retracted from the bottom level of each branch branch, and further,
The ceramic cutter is characterized in that it is detachably attached so that both ends of the cutter are aligned with the fitting recesses of the respective branch pieces.

The structure and operation of this means will be explained in more detail with reference to the drawings as follows.

Note that FIGS. 1 and 2 are a front view and a side view of a peeler according to one embodiment of the present invention,
FIG. 3 is a sectional view taken along the line A-A in FIG. 1, FIG. 4 is an explanatory diagram showing the mutual positions of the tip of the handle and the blade, and FIG. FIG. 6 is a perspective view of the tip of the handle, and FIG. 7 is a sectional view of a cutter according to another embodiment.

First, in FIGS. 1, 2, and 3, reference numeral 1 indicates a handle, and this handle 1 is made of an elastic material such as synthetic resin. This handle 1 has a pair of branch branches 2
a, 2b, supporting the contact surface 5, and protruding from the tip 1a of the contact surface 5.
A ceramic cutter 3 is removably attached between a and 2b without using adhesive, and this ceramic cutter 3 is attached to a branch branch 2 made of an elastic material.
It is elastically supported between a and 2b.

That is, each branch branch piece 2a, 2b is made of a synthetic resin or the like to have elasticity, and the fitting recesses 3a, 3b (sixth
(see figure), aligning both ends of the cutter 3 with these fitting recesses 3a, 3b (see Fig. 5), and removably attaching the cutter 3 to the fitting recesses 3a, 3b. can be retained.

To explain in more detail, since the cutter 3 is made of ceramic, it is difficult to fix it with an adhesive, and the use of an adhesive is not preferable from the viewpoint of food hygiene. Regarding this point, in the present invention, if the pair of branching pieces 2a, 2b are made of a material with elastic force such as synthetic resin, the cutter 3 is moved between the pair of branching pieces 2a, 2b due to this elastic force. On top of this, both ends of the cutter 3 are fitted into fitting recesses 3a, 3b, and are detachably attached without being fixed between the respective branch pieces 2a, 2b. For this purpose, cutlery 3
is firmly held, and at the same time the pair of branching pieces 2
Since the gap between a and 2b can be enlarged and contracted, it is extremely easy to attach and detach the cutter 3, and moreover, the cutter 3 is held without being fixed between the branch pieces 2a and 2b.

Furthermore, when installing the cutter 3 between the pair of branch branches 2a and 2b, there is a gap 4 of a predetermined size between the tip 1a of the handle 1 and the cutting edge of the cutter 3, for example, about 3 to 7 mm. , to form a discharge gap 4. Therefore, when peeling vegetables, etc., when the contact surface 5 on the back side of the handle tip 1a and the cutting edge of the knife are applied to the surface of the vegetables, etc., and the surface is scraped, the skin is discharged from the discharge gap 4. .

In addition, in the handle 1, a pair of branch pieces 2a, 2
In b, as shown in FIGS. 1 and 2, the strip material is bent and the contact surface 5 is sandwiched between these branching pieces 2a and 2b. In this way, when constructing the handle 1 from the contact surface 5 and the branch branches 2a, 2b, the contact surface 5 is at the bottom surface level of the branch branches 2a, 2b that support it, as shown in FIG. On the other hand, in the case of the cutter 3, between both the branch branches 2a and 2b, the cutting edge of the knife 3 is retracted inward from the bottom surface level of the branch branches 2a and 2b and the level of the contact surface 5. Install it with care. If the knife 3 is retracted and installed in this way, even if it receives an impact when peeling, the impact force will be applied mainly to the contact surface 5 due to the difference in the level, and even if the knife 3 is made of ceramic, it will not be damaged. do not have. Further, the cutter 3 does not protrude from the bottom level of the pair of branching pieces 2a, 2b. Therefore, even if the cutter 3 is dropped or is subjected to impact, the cutter 3 will not be damaged because it is protected by the branch pieces 2a and 2b. When the length _l1 of the discharge gap 4 is 3 to 7 mm, the retraction dimension D is set to be about 2 mm at maximum, and in particular, α is set in the range of 2 to 20°. That is, since the cutter 3 is made of ceramic and has a cutting edge portion formed at its tip, it is not preferable that external forces such as impact be applied to the cutter 3. For this reason,
Unlike the conventional example, the cutting edge part of the cutting tool 3 is retracted from the bottom surface level of each branch branch 2a, 2b and the level of the contact surface 5, without protruding the cutting edge part. To explain in more detail, the contact surface 5 is installed so that the bottom level is the same between the pair of branch branches 2a and 2b, whereas the blade 3 is installed between the pair of branch branches 2a and 2b, and the cutting edge portion is attached to each branch branch. Piece 2
Install so that it can be retracted from the bottom level of a and 2b. However, the rate of retraction and retraction must be within a range that does not impair cutting performance, and it is necessary that no strain is placed on the blade 3. In order to meet this request, α must be in the range of 2 to 20 degrees. There is.

Further, the cutter 3 is pulled in from the level of the contact surface 5, and is set at an angle of θ ₁ =25 to 45° with respect to a parallel level parallel to the level of the contact surface 5, and furthermore, the blade edge angle is _θ2 is adjusted to 15-30°.
When adjusted in this manner, it is possible to maintain good contact with the surface of vegetables, etc., and the thin epidermis can be peeled off smoothly, with almost no digging. In this case, θ ₁
When θ1 is less than 25°, the penetration of the knife is so small that it interferes with the peeling process; however, when _θ1 is
If the temperature exceeds 45 degrees, it will deeply dig into the surface of vegetables, etc. when peeling, and will lose its properties as a peeler. Further, from the viewpoint of machinability, it is preferable that the cutting edge angle θ ₂ be as small as possible, but if the blade is made of ceramic, it is difficult to make it too thin from the viewpoint of strength and manufacturing. Therefore, the present inventors conducted repeated research on this point and found that θ ₂ is
When the angle is 15° or more, there is almost no problem with machinability.
Although sufficient strength could be provided, when θ ₂ exceeded 30°, the machinability significantly decreased.

In addition, from the viewpoint of maintaining machinability and strength,
The cutting edge of the cutter 3 can also be configured to be stepped, as shown in FIG. That is, FIG. 7 shows a case in which the cutting edge part is configured as a two-stage cutting edge, and in this case, the cutting edge angle θ ₂ is within the range of 15° to 30°, particularly 15° to 23°.
It is small like this. However, this blade 3
The tip of the horizontal level is about 0.1~
It is within the range of 1 mm, and the tip edge angle θ ₃ is larger than θ ₂ and is set to about 25° to 45°. With such a two-stage blade configuration, the strength of the tip can be maintained sufficiently, and the cutting edge angle θ ₂ can be kept small, so that the cutting performance as a peeler can be fully demonstrated, and the blade has sufficient strength against impact and other external forces. Can hold enough.

Further, as described above, the ceramic blade held at the tip of the handle can be made of any ceramic as long as it has high strength, high toughness, high hardness, and excellent acid resistance. Therefore, in practical terms, toughness
3MN/m ^3/2 or more, bending strength 50Kg/mm ² or more, hardness
Hv1000 or higher is preferable, ZrO ₂ series, Al ₂ O ₃
system, ZrO ₂ −Al ₂ O ₃ system, SiC system, especially ZrO ₂ 90~
Partially stabilized zirconia comprising 98 wt% _and 2-10 wt% _Y2O3 is preferred.

<Effects of the Invention> As explained above in detail, the peeler according to the present invention has a ceramic cutter elastically held at the tip of the handle by a pair of branched pieces in a removable manner.

Furthermore, since this knife is made of ceramic, it has excellent acid resistance and can be used for a long period of time, for example, about 20 years, without needing to be ground. In addition, even if the cutter is made of ceramic, the elastic force of the pair of branching pieces is used to hold the cutter aligned with the fitting recess of the branching piece, and the impact force is applied to the cutter. However, since this cutter has a certain degree of freedom compared to the case where it is fixed to the branch branch, most of the impact force is absorbed and the ceramic cutter will not be damaged.

Furthermore, since no adhesive is used, there are no sanitary problems. Furthermore, since the cutting edge at the tip of the knife is located inwardly from the surface of the handle that touches vegetables, etc., no strain is applied to the cutting edge even when it hits a hard surface.

In addition, the corner portion of the contact surface on the back side of the tip of the handle may be slightly rounded as shown in FIG. 6 to improve sliding.

[Brief explanation of the drawing]

1 and 2 are front and side views of a peeler according to one embodiment of the present invention, and FIG.
4 is an explanatory diagram showing the relative positions of the tip of the handle and the blade; FIG. 5 is a perspective view of the tip of the peeler shown in FIGS. 1 and 2. 6 is a perspective view of the tip of the handle, and FIG. 7 is a sectional view of a cutter according to another embodiment. Code, 1...Handle, 2a, 2b...Branch branch, 3
...Blade, 3a, 3b...Fitting recess, 4...Gap, 5...Abutment surface.

Claims (1)

[Scope of utility model registration request] In a peeler for vegetables, etc., which is attached between a pair of branch branches so as to leave a discharge gap between the contact surface and the blade, each of the branch branches is made of an elastic material such as synthetic resin, and the blade is The ceramic cutter is located at a position where the cutting edge thereof is recessed inward from the horizontal level of the contact surface and retracted from the bottom level of each of the branch branches, and A peeler for vegetables, etc., characterized in that the cutter is detachably attached so that both ends of the cutter are aligned with the fitting recesses of the respective branch pieces.