CN111745694A

CN111745694A - Kitchen knife capable of saving labor in use

Info

Publication number: CN111745694A
Application number: CN202010521241.6A
Authority: CN
Inventors: 曾宪辉
Original assignee: Yangjiang Yangdong Tianyi Cutter Co ltd
Current assignee: Yangjiang Yangdong Tianyi Cutter Co ltd
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2020-10-09

Abstract

The utility model provides a use laborsaving kitchen knife, includes blade section, hand protector part and the handle portion that sets gradually from the front to the back, the bottom of blade section is equipped with the blade, guaranteeing blade distance, the handle portion apart from and hand protector part with under the unchangeable condition of reference position that the blade meets, hand protector part along reference portion is rotatory 17 forward. According to the kitchen knife, after the hand guard part rotates forwards by 17 degrees, compared with the traditional knife, the handle part moves forwards for a certain distance towards the knife body part, so that the length of the whole knife is shortened, the aim of saving labor is fulfilled according to the lever principle, the design that the hand guard part rotates forwards by 17 degrees is most reasonable, labor is saved, and the hand holding feeling is comfortable.

Description

Kitchen knife capable of saving labor in use

Technical Field

The invention relates to the technical field of cutters, in particular to a kitchen cutter with labor-saving use.

Background

Traditional western style kitchen knife, its hand protector part is vertical, perhaps hand protector part rotates certain angle backward along the benchmark portion, and is harder during the use. Therefore, there is a need to design a better kitchen knife to solve the above problems.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the kitchen knife which is comfortable in holding feeling and labor-saving in use.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a use laborsaving kitchen knife, includes blade section, hand protector part and the handle portion that sets gradually from the front to the back, the bottom of blade section is equipped with the blade, guaranteeing blade distance, the handle portion apart from and hand protector part with under the unchangeable condition of reference position that the blade meets, hand protector part along reference portion is rotatory 17 forward.

The invention has the beneficial effects that:

under the condition that the distance between the cutting edges, the distance between the handle part and the position of the reference part where the hand protecting part is connected with the cutting edges are guaranteed to be unchanged, the hand protecting part rotates forwards by 17 degrees along the reference part. After the hand guard part rotates forwards by 17 degrees, the handle part moves forwards for a certain distance towards the direction of the knife body part, so that the length of the whole knife is shortened, the aim of saving labor is fulfilled according to the lever principle, the design that the hand guard part rotates forwards by 17 degrees is most reasonable, labor is saved, and the hand holding feeling is comfortable.

Drawings

FIG. 1 is a schematic structural view of a kitchen knife, wherein A-1 is a schematic structural view of the kitchen knife of the present invention, B-1 is a schematic structural view of a conventional kitchen knife with a vertical hand guard portion, and C-1 is a schematic structural view of a conventional kitchen knife with a hand guard portion rotated backward by 10 degrees;

FIG. 2 is a force analysis view of a kitchen knife, in which A-2 is a force analysis view of the kitchen knife of the present invention, B-2 is a force analysis view of a conventional kitchen knife with a hand portion perpendicular thereto, and C-2 is a force analysis view of a conventional kitchen knife with a hand portion rotated backward by 10 °.

In the figure, 1-knife body part, 2-hand guard part, 3-handle part, 4-cutting edge, 5-datum part, 6-cut object, L11-cutting edge distance, L12-handle part distance and L-total length.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as the front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship, movement, etc. of the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

As shown in fig. 1 and 2, the invention provides a labor-saving kitchen knife, which comprises a knife body part 1, a hand guard part 2 and a handle part 3 which are sequentially arranged from front to back, wherein a cutting edge 4 is arranged at the bottom of the knife body part 1, and under the condition that the distance L11 between the cutting edge 4 and the handle part 3, the distance L12 between the handle part 3 and a reference part 5, which is formed by connecting the hand guard part 2 and the cutting edge 4, is not changed, the hand guard part 2 forwards rotates by 17 degrees along the reference part 5. Wherein, cutting edge 4 distance L11 is the distance along cutter length direction between 4 front end knife noses of cutting edge and 4 rear ends of cutting edge and hand protector part 2 junction, and the distance L12 of handle portion 3 is the distance along cutter length direction between the most remote point in handle portion 3 rear end and the 3 front end of handle portion and the hand protector part 2 junction.

According to the kitchen knife, after the hand guard part 2 rotates forwards by 17 degrees, compared with the traditional knife, the handle part 3 moves forwards for a certain distance towards the knife body part 1, so that the length of the whole knife is shortened. According to the lever principle, the aim of saving labor is fulfilled. The design that the hand guard part 2 rotates forwards by 17 degrees is most reasonable, so that the labor is saved, and the hand holding feeling is comfortable.

Taking an 8-inch kitchen knife as an example, (1) the traditional design is as shown in fig. 1 (B-1), under the condition that the distance L11 between the cutting edge 4 and the handle part 3 and the distance L12 between the handle part 3 and the reference part 5 are not changed, the hand guard part 2 rotates 0 degrees along the reference part 5, namely, the hand guard part 2 is vertical, and the total length L of the kitchen knife is 345 mm. (2) The traditional design scheme is as shown in figure 1 (C-1), under the condition that the distance L11 between the cutting edge 4 and the handle part 3, the distance L12 between the handle part 3 and the position of the reference part 5 are not changed, the hand guard part 2 rotates backwards 10 degrees along the reference part 5, and the total length L of the kitchen knife is 353 mm. (3) The kitchen knife of the present invention, as shown in fig. 1 (a-1), has a hand guard portion 2 rotated forward 17 ° along a reference portion 5 while maintaining a distance L11 between a cutting edge 4 and a handle portion 3 and a distance L12 between the cutting edge and the reference portion 5, and has a total length L of 331 mm. Therefore, the length of the kitchen knife is shortened by 14mm compared with the length of the traditional design scheme B-1, and the length of the kitchen knife is shortened by 22mm compared with the length of the traditional design scheme C-1.

According to the lever principle, the resistance × of an object to a knife is equal to the power × of a user, taking an 8-inch kitchen knife as an example, three resistance arms are ensuredIn the embodiment, when the distance L11 between the cutting edge 4 and the handle portion 3 is 203mm, the distance L12 between the handle portion 3 and the reference portion 5 is 133mm, and the distance between the object 6 to be cut and the reference portion 5 is 50mm, it is assumed that the resistance of the object 6 to the knife is F₁The wrist position is set as a fulcrum 1000N, the front end of the handle part 3 is used as a power point, and the force application conditions (power) of the user in the three technical schemes are respectively calculated, so that the scheme is more labor-saving.

(1) The force analysis diagram of the traditional design scheme is shown in figure 2 (B-2), the hand guard part 2 is a vertical kitchen knife, F ₁1000N, resistance arm L₁192mm, power arm L₂When the measured value is 133mm, the power F is calculated₂Comprises the following steps:

(2) the conventional design scheme is shown in fig. 2 (C-2) by force analysis, and the hand guard portion 3 is rotated backward by 10 ° along the reference portion 5, F ₁1000N, resistance arm L₁201mm, power arm L₂When the measured value is 133mm, the power F is calculated₂Comprises the following steps:

(3) the knife of the present invention is illustrated in fig. 2 (a-2) by force analysis, in which the hand portion 3 is rotated forward by 17 ° along the reference portion 5, and the hand portion F is rotated forward₁1000N, resistance arm L₁178mm, power arm L₂When the measured value is 133mm, the power F is calculated₂Comprises the following steps:

to sum up, the user effort of the conventional design scheme B-2 is 1444N, the user effort of the conventional technical scheme C-2 is 1511N, and the user effort of the kitchen knife of the present invention is 1338N, so that the kitchen knife of the present invention saves 106N (1444N-1338N is 106N), that is, saves 7.92% of effort (106N ÷ 1338N is 7.92%); compared with the traditional design scheme C-2, the kitchen knife saves labor by 173N (1511N-1338N is 173N), namely 12.93 percent (173N is 1338N is 12.93 percent). It follows that the kitchen knife of the invention is most labour-saving.

Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A kitchen knife that is labor efficient, comprising: blade part, hand protector part and the handheld portion that set gradually from the front to the back, the bottom of blade part is equipped with the blade, guarantee blade distance, handheld portion distance and hand protector part with under the unchangeable condition in benchmark position that the blade meets, hand protector part along the benchmark portion is rotated 17 forward.