CN212553935U - Cutting tool - Google Patents

Abstract

The utility model discloses a cutter, belonging to the technical field of daily appliances, comprising a cutter body and a cutter handle fixed at the rear end of the cutter body; a connecting part with a small front part and a large rear part is arranged between the cutter body and the cutter handle, and the rear end of the connecting part is matched with the front end of the cutter handle in size; the joining part and the cutter body are of an integral structure, and side transition curved surfaces which are in transition from front to back are connected between the joining part and the two side surfaces of the cutter body; the rear end of the joining part is fixedly provided with a mandrel which penetrates through the tool shank from front to back, the rear end of the mandrel is in threaded connection with an end cover, and the tool shank is fixed between the joining part and the end cover. Through the setting of linking portion, realized the curved surface transitional coupling between cutter body and the handle of a knife, avoided because of the poor linking bead that causes of thickness between cutter body and the handle of a knife, the fixed simple reliable of handle of a knife simultaneously can with the fine butt joint of linking portion, when using this cutter, the finger can be located lateral part transition curved surface or stretch to the cutter body through lateral part transition curved surface, can not press against the hand all, operates better messenger's power moreover, conveniently grips, uses comfortable, laborsaving, safety.

Description

Cutting tool

Technical Field

The utility model belongs to the technical field of daily apparatus, concretely relates to cutter.

Background

The knife is an indispensable tool in daily life of families, and a plurality of knives such as fruit knives and kitchen knives are often required to be equipped. The cutter usually includes cutter body and handle of a knife, and the handle of a knife is installed on the rear end upper portion of cutter body, and in order to facilitate the gripping, increase and feel, the handle of a knife is wooden or other non-metallic material usually. People often can stretch the forefinger to the cutter body direction in order to facilitate the force during the operations of cutting vegetables and the like, so that the cutter can be held better and the labor is saved.

However, after the knife handle of the existing knife is installed, as shown in fig. 1 and fig. 2, since the knife handle is thicker than the knife body, the joint of the knife handle and the knife body is often provided with joint ribs on the surface of the knife at the joint due to the sudden narrowing of the cross section, which causes that when the knife handle is held by hand for cutting vegetables and the like, fingers extending to the front end are uncomfortable against the hand, which affects the force, is easy to fatigue, and is difficult to keep the hand-holding posture which is convenient to force for a long time. In addition, food residues or oil stains can be accumulated after the groove dead angle of the convex edge of the cutter is used for a long time, and the cutter is difficult to clean.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cutter to solve present cutter and have linking bead and influence the problem that makes power in the linking department of handle of a knife and cutter body.

For realizing the purpose of the utility model, the technical proposal adopted is that: a cutter comprises a cutter body and a cutter handle fixed at the rear end of the cutter body; a connecting part with a small front part and a large rear part is arranged between the cutter body and the cutter handle, and the rear end of the connecting part is matched with the front end of the cutter handle in size; the joining part and the cutter body are of an integral structure, and side transition curved surfaces which are in transition from front to back are connected between the joining part and the two side surfaces of the cutter body; the rear end of the joining part is fixedly provided with a mandrel which penetrates through the tool shank from front to back, the rear end of the mandrel is in threaded connection with an end cover, and the tool shank is fixed between the joining part and the end cover.

As a further alternative, a lower transition curved surface is connected between the lower end of the joining part and the rear end surface of the cutter body.

As a further alternative, the upper end of the joining part is flush with the blade back of the blade body.

As a further alternative, the mandrel is polygonal in cross-section.

As a further alternative, the end cover is matched with the size of the rear end of the cutter handle.

As a further alternative, the handle is wood.

As a further alternative, the mandrel is of unitary construction with the engagement portion and the cutter body.

The utility model has the advantages that:

1. through the setting of linking portion, realized the curved surface transitional coupling between cutter body and the handle of a knife, avoided because of the poor linking bead that causes of thickness between cutter body and the handle of a knife, the fixed simple reliable of handle of a knife simultaneously can with the fine butt joint of linking portion, when using this cutter, the finger can be located lateral part transition curved surface or stretch to the cutter body through lateral part transition curved surface, can not press against the hand all, operates better messenger's power moreover, conveniently grips, uses comfortable, laborsaving, safety.

2. The cutter body and the cutter handle of the cutter are seamlessly connected, so that food residues or oil stains can be prevented from being accumulated at the dead angle between the cutter body and the cutter handle after long-time use.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings required for the description of the embodiments will be briefly introduced below, it should be understood that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a front view of a prior art tool;

FIG. 2 is a top view of the prior art tool shown in FIG. 1;

fig. 3 is a front view of a tool provided by an embodiment of the present invention;

FIG. 4 is a top view of the tool shown in FIG. 3;

fig. 5 is a cross-sectional view at the shank of the tool shown in fig. 3.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention. It is to be understood that the drawings are designed solely for the purposes of illustration and description and not as a definition of the limits of the invention. The connection relationships shown in the drawings are for clarity of description only and do not limit the manner of connection.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

Fig. 3 to 5 show a cutter provided by the present invention, which comprises a cutter body 1 and a cutter handle 2 fixed at the rear end of the cutter body 1; a connecting part 3 with a small front part and a large rear part is arranged between the cutter body 1 and the cutter handle 2, and the rear end of the connecting part 3 is matched with the front end of the cutter handle 2 in size; the joining part 3 and the cutter body 1 are of an integral structure, and side transition curved surfaces 4 which are in transition from front to back are connected between the joining part and two side surfaces of the cutter body 1; the rear end of the joining part 3 is fixedly provided with a mandrel 5 which penetrates through the tool shank 2 from front to back, the rear end of the mandrel 5 is in threaded connection with an end cover 6, and the tool shank 2 is fixed between the joining part 3 and the end cover 6.

Through the fine linking bead of having avoided traditional cutter to exist of lateral part transition curved surface 4 from preceding back transition, can see from fig. 4 moreover that linking portion 3 overlooks the angle and has formed the taper, make smooth-going transition in thickness between cutter body 1 and the handle of a knife 2, make things convenient for handheld power, improved the comfort level greatly. Simultaneously, the rear end of the joining part 3 can be well correspondingly joined with the knife handle 2, and the knife handle 2 is tightly fixed between the joining part 3 and the end cover 6 through the end cover 6.

The lower transition curved surface 7 is connected between the lower end of the connecting part 3 and the rear end face of the cutter body 1, so that the phenomenon that fingers easily press hands or are painful and worn at the corner connecting part of the connecting part 3 and the rear end face of the cutter body 1 when the cutter is used can be prevented, the integral hand feeling of the cutter is good, and the operation is easy.

The upper end of the joint part 3 is flush with the knife back of the knife body 1, and the transition is stable, so that the knife is convenient to hold and attractive. The section of the mandrel 5 is polygonal, so that the tool holder 2 is provided with a hole matched with the mandrel 5, and the tool holder 2 is sleeved on the mandrel 5 with the polygonal section, so that the smooth butt joint and the operation use of the tool holder and the joint part 3 are not influenced by the relative rotation. The mandrel 5 can also be cylindrical, and when the mandrel 5 is cylindrical, a square or other polygonal boss can be arranged at the front end of the mandrel 5 for circumferential fixation between the mandrel 5 and the tool holder 2.

The end cover 6 is matched with the rear end of the knife handle 2 in size, so that smooth butt joint is facilitated and the hand holding is convenient. The threaded connection between the mandrel 5 and the end cap 6 may be specifically formed by machining an internal thread on one of the two and an external thread on the other. In fig. 5, an internal thread hole is processed at the rear end of the mandrel 5, a stepped shaft is arranged at the front end of the end cover 6, and an external thread is processed on the stepped shaft, or other modes can be adopted. The mandrel 5, the connecting part 3 and the cutter body 1 are of an integral structure, and the structure strength is good. The knife handle 2 is made of wood and is sleeved on the mandrel 5, so that the hand feeling is comfortable and light.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims (7)

1. A cutter comprises a cutter body and a cutter handle fixed at the rear end of the cutter body; the cutter is characterized in that a connecting part with a small front part and a large rear part is arranged between the cutter body and the cutter handle, and the rear end of the connecting part is matched with the front end of the cutter handle in size; the joining part and the cutter body are of an integral structure, and side transition curved surfaces which are in transition from front to back are connected between the joining part and the two side surfaces of the cutter body; the rear end of the joining part is fixedly provided with a mandrel which penetrates through the tool shank from front to back, the rear end of the mandrel is in threaded connection with an end cover, and the tool shank is fixed between the joining part and the end cover.

2. The tool according to claim 1, wherein a lower transition curved surface is connected between a lower end of the engagement portion and a rear end surface of the tool body.

3. The tool according to claim 1, wherein an upper end of the engagement portion is flush with a back of the tool body.

4. The tool according to claim 1, wherein the mandrel is polygonal in cross-section.

5. The tool according to claim 1, wherein the end cap is sized to fit the rear end of the shank.

6. The tool according to claim 1, wherein the shank is wood.

7. The tool of claim 1, wherein the spindle is of unitary construction with the engagement portion and the tool body.

Images