CN216399715U - Cutter tooth and trimming cutter with gradually-changed acute-angle cutting edge - Google Patents
Cutter tooth and trimming cutter with gradually-changed acute-angle cutting edge Download PDFInfo
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- CN216399715U CN216399715U CN202122793492.2U CN202122793492U CN216399715U CN 216399715 U CN216399715 U CN 216399715U CN 202122793492 U CN202122793492 U CN 202122793492U CN 216399715 U CN216399715 U CN 216399715U
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Abstract
The utility model relates to a cutter tooth with a blade with a gradually-changed acute angle and a trimming cutter, which are characterized in that an inclined plane extends to the tail end of the cutter tooth body along the front end of the cutter tooth body to form a blade front end and a blade tail end, and the included angle S of the blade front end1Greater than the included angle S of the end of the blade2And the angle from the front end of the blade to the tail end of the blade is gradually reduced. The utility model has the advantages that the angle of the front-end blade of the cutter tooth body is enlarged, so that the included angle of the front end of the blade is close to a right angle, and the front-end angle of the blade at the front end of the cutter tooth body can be avoided under the condition of not influencing hair separationThe skin is stabbed due to sharp degree, and the use safety of the pruning tool is improved. Simultaneously with the cutting edge angle of sword tooth body one side or both sides along cutting edge front end to the terminal gradual change that diminishes of cutting edge and form smooth transition, hair gets into the back through the cutting edge front end, is close to the cutting edge end more, and the angle of cutting edge is just more sharp-pointed more, and the cutting sharpness just is higher more, just so can effectively guarantee the benefit of pruning and the pruning effect of hair.
Description
Technical Field
The present invention relates to a cutter tooth, and more particularly to a cutter tooth having a blade edge with a gradually changing acute angle, which is mainly applied to a trimming cutter for trimming hair.
Background
In order to facilitate hair trimming, a cutting edge is arranged on one side or two sides of the cutter teeth on the existing trimming cutter, and the cutting edge is formed by an acute angle formed between an inclined plane and a bottom working plane of the cutter teeth. The cutting edges of the existing cutter teeth are shown in figures 1 and 2, the cutting edges at the root parts and the top parts of the cutter teeth have the same angle, so that the production and the processing of the cutting edges can be facilitated, the production benefit is improved, and the trimming effect of a trimming tool is ensured. However, during the use process, the cutting edges at the tops of the cutter teeth are easy to pierce the skin, so that the user is injured, and the use safety of the trimming tool is affected.
SUMMERY OF THE UTILITY MODEL
To solve the above technical problems; the utility model provides a cutter tooth and a trimming cutter with gradually-changed acute-angle cutting edges, and the angle of the front end of the cutting edge on the side wall of the cutter tooth is increased, so that the front end of the cutting edge can be effectively prevented from puncturing skin under the condition of facilitating hair separation and introduction, and the use safety of the trimming cutter is improved; and secondly, the angle of the tail end of the blade edge is reduced, so that the hair trimming benefit and the hair trimming effect are ensured.
In order to solve the technical problems, the technical scheme adopted by the utility model is that the cutter tooth with the gradually-changed acute-angle cutting edge comprises a cutter tooth body, inclined surfaces are arranged on one side and/or two sides of the cutter tooth body, the inclined surfaces are combined with a working surface of the cutter tooth body to form the cutting edge with the acute-angle cutting edge, the inclined surfaces extend towards the tail end of the cutter tooth body along the front end of the cutter tooth body to form a cutting edge front end and a cutting edge tail end, and an included angle S of the cutting edge front end is1Greater than the included angle S of the end of the blade2And the angle from the front end of the blade to the tail end of the blade is gradually reduced.
Preferably, the included angle S of the front end of the blade1Is 70-90 degrees.
Preferably, the blade tip angle S2Is 5-70 degrees.
Preferably, the top point M of the bevel of the front end of the blade1The upper vertex M of the inclined plane higher than the tail end of the blade2And the upper vertex M of the bevel at the front end of the blade1And the upper vertex M of the bevel of the blade end2The two parts are in arc transition.
Preferably, the acute cutting edge formed at the junction of the working surface and the inclined surface of the cutter tooth body is arc-shaped, so that the tail end width W of the cutting edge2Is greater than the width W of the front end of the blade1。
On the basis of the technical scheme, the applicant also provides a trimming cutter which comprises a cutter body and is characterized in that a plurality of cutter teeth are arranged on the cutter body.
The utility model has the beneficial effects that:
1. the angle of the front end blade of the cutter tooth body is increased, so that the included angle of the front end of the blade is close to a right angle, the skin can be prevented from being stabbed by the sharp angle of the front end of the blade at the front end of the cutter tooth body under the condition that hair is not influenced, and the use safety of the trimming tool is improved.
2. The cutting edge angle with sword tooth body one side or both sides diminishes gradually along cutting edge front end to cutting edge end and forms gradual change smooth transition, and hair gets into the back through the cutting edge front end, and is close to the cutting edge end more, and the angle of cutting edge is just more sharp-pointed more, and the cutting sharpness just is higher more, just so can effectively guarantee the benefit of pruning and the pruning effect of hair.
3. The blade angle that blade front end to blade end is the gradual change mode and becomes more littleer more, prevents that the angle of blade from taking place great change suddenly, can effectively avoid taking place under the circumstances of sword tooth body and other sword teeth complex to pluck the hair phenomenon like this or because of the angle sudden change of blade leads to the production and processing degree of difficulty of blade to increase, improves the productivity effect of blade and the benefit of pruning of hair.
Drawings
FIG. 1 is an enlarged view of a cutter tooth of a conventional trimming cutter
FIG. 2 is an enlarged sectional view of a cutter tooth of a conventional trimming cutter
FIG. 3 is a perspective view of a trimming blade according to an embodiment of the present invention
FIG. 4 is an enlarged front view of a tooth with a tapered acute edge according to an embodiment of the present invention
FIG. 5 is an enlarged top view of a tooth with a tapered acute edge according to an embodiment of the present invention
FIG. 6 is an enlarged perspective view of a tooth with a tapered edge
Detailed Description
The embodiments of the utility model will be further explained with reference to the drawings in which:
as shown in figures 4-6, the utility model is a cutter tooth with a gradually-changed acute-angle cutting edge, which comprises a cutter tooth body 1, wherein one side and/or two sides of the cutter tooth body 1 are/is provided with inclined surfaces 21, the inclined surfaces 21 are engaged with the working surface of the cutter tooth body 1 to form the cutting edge 2 with an acute-angle cutting edge 22, the inclined surfaces 21 extend towards the tail end of the cutter tooth body 1 along the front end of the cutter tooth body 1 to form a cutting edge front end 23 and a cutting edge tail end 24, and the cutting edge front end 23 forms an included angle S1Greater than the angle S of the blade tip 242And the angle of the blade 2 from the blade front end 23 to the blade tail end 24 is gradually reduced.
Based on the findings that the angle of the front-end blade 2 of the cutter tooth body 1 is increased, and the included angle S of the front end 23 of the blade is increased by the technical team of the applicant, the angle of the front-end blade 2 of the cutter tooth body 1 is increased, so that the included angle S of the front end 23 of the blade is increased1The hair cutting device approaches to a right angle, so that the sharpness of the blade edge 2 is relatively reduced, the phenomenon that the cutting edge 22 of the front end 23 of the blade edge of the front end of the cutter tooth body 1 is too sharp to stab the skin can be avoided under the condition that the hair is not influenced, the use safety of the cutting tool is improved, and the cutting tool is particularly applied to infant hair cutting.
In order to facilitate the production and processing of the blade edge 2 and ensure the hair trimming benefit and the hair trimming effect, the angles of the blade edge 2 on one side or two sides of the blade tooth body 1 are gradually reduced from the front end 23 of the blade edge to the tail end 24 of the blade edge to form gradual and smooth transition, so that the angle of the blade edge 2 is more acute when the angle of the blade edge 2 is closer to the tail end 24 of the blade edge, and after the hair enters from the front end 23 of the blade edge, the angle of the blade edge 2 is more acute when the hair is closer to the tail end 24 of the blade edge, and the cutting sharpness is higher, so that the hair trimming benefit and the hair trimming effect can be effectively ensured; secondly, the angle of the blade 2 from the front end 23 to the tail end 24 of the blade is gradually changed, so that the blade 2 is prevented from being changed greatly suddenly, the galling phenomenon under the condition that the blade tooth body 1 is matched with other blade teeth or the production and processing difficulty of the blade 2 is increased due to the sudden change of the angle of the blade 2 can be effectively avoided, and the production benefit of the blade 2 and the hair trimming benefit are improved.
In order to prevent the blade 2 at the front end of the cutter tooth body 1 from puncturing the skin, the included angle S of the front end 23 of the blade1The angle is 70-90 degrees, preferably 75 degrees, so that the sharpness of the front edge 23 of the blade edge can be reduced to the maximum extent, when in use, the cutter tooth body 1 not only can realize hair diversion, but also can effectively prevent the front edge 23 of one side or two sides of the cutter tooth body 1 from piercing the skin, and the use safety of the trimming cutter is improved. As is well known, the larger the angle of the blade 2, the worse the sharpness, and in the practical use, the included angle S of the front end 23 of the blade can be set1The setting is 80 degrees, 85 degrees or 90 degrees, etc., as long as the sharpness reduction of the front end 23 of the blade edge can be achieved, and the specific angle setting can be determined according to the actual requirements of the cutter teeth or the requirements of users.
To ensure hair-cutting action of the teeth, the angle S of the distal end 24 of the cutting edge2Is 5-70 degrees, preferably 35 degrees, and forms an included angle S from the front end 23 of the cutting edge1Gradually reduced to 24 included angles S at the tail end of the blade2When hair enters the hair clipping machine through the front end 23 of the blade, the hair clipping effect of the blade 2 can be effectively guaranteed by gradually reducing the angle of the blade 2 and gradually improving the sharpness of the blade 2. Of course, the angle S of the blade tip 242Can also be set at 10 degrees, 15 degrees or 20 degrees, etc., but the blade end 24 is arranged at an included angle S2Is set to be small at an angle S from the front end 23 of the blade1Gradually transits to the 24 included angles S at the tail end of the blade2During the process, the angle change of the cutting edge 2 is large, the production difficulty of the cutting edge 2 is correspondingly improved, and the production and the processing of the cutting edge 2 are not facilitated. In the practical process, the included angle S of the blade end 24 can be determined according to the length of the cutter tooth body 12E.g. the longer the length of the tooth body 1, the more the angle S included at the blade tip 242The smaller the angle S of the leading edge 23 can be, the more sharp the cutting edge 2 can be, the more effective the hair cutting effect can be, and the more smooth the angle S of the leading edge 231Angle S to the end 24 of the blade2The angle between the two cutting edges is gradually changed, the processing difficulty of the cutting edges 2 is reduced, the production benefits of the cutter teeth and the cutting edges 2 are improved, and the production cost is reduced.
To facilitate the production of the blade 2Machining, the upper vertex M of the bevel of the front end 23 of the blade1Upper bevel apex M above blade tip 242And the upper vertex M of the bevel of the blade tip 231And the upper point M of the bevel of the blade tip 242The two parts are in arc transition. Since the blade front end 23 is gradually transited to the blade end 24 and gradually reduced, if the upper vertex M of the bevel of the blade end 24 is2Higher than or equal to the upper bevel apex M1 of the blade tip 23, such that the upper bevel apex M of the blade tip 242The cutter teeth are likely to be sunken in the side wall of the cutter teeth body 1, so that the structure of the cutting edge 2 is complex and the production and the processing are not easy. While the upper apex M of the bevel of the blade tip 24 is located2A top point M arranged on the inclined plane of the front end 23 of the blade1Therefore, when the sharpness of the blade 2 is improved by ensuring the gradual change of the angle of the blade 2, the inclined plane 21 of the blade 2 can be positioned outside the side wall of the cutter tooth body 1, a concave structure can not be generated on the side wall of the cutter tooth body 1, the cutter tooth can be quickly produced through precise machining or an integrated punch forming process during production, and the production benefit of the cutter tooth is improved.
In order to improve the hair cutting comfort of the cutter tooth, the acute-angle cutting edge 22 formed at the joint of the working surface of the cutter tooth body 1 and the inclined surface 21 is arc-shaped, so that the width W of the tail end 24 of the cutting edge is wide2Is greater than the width W of the front end 23 of the blade1. The cutting edge 22 from the blade tip 23 to the blade tip 24 is configured in an outwardly curved arc such that the blade tip 23 has a width W1Less than the width W of the blade tip 242When the cutter teeth swing and trim, hair enters between the movable cutter and the stationary cutter of the trimming tool through the branch guide at the front end of the cutter tooth body 1, and if the hair enters too much, the hair entering the joint of the two cutter teeth is firstly cut, and the redundant hair is pushed out (also called hair spitting) by the arc-shaped cutting edge 22, so that the phenomenon of hair pulling caused by continuous trimming due to the concentrated overlapping of the excessive hair is effectively prevented, the hair trimming benefit and the trimming effect are improved, meanwhile, the skin is prevented from generating pain, the use comfort of the trimming cutter is improved, and particularly the hair trimming cutter for infants is provided. Of course, the cutting edge 22 can also be arranged in a straight line or an inward-concave arc shape, and the inward-concave arc-shaped cutting edge 22 can play a role of hair pocket to prevent the hair from sliding out between the two cutter teeth, so that the hair can be prevented from sliding outThe cutting edge 22 of the cutting edge 2 has high requirements on the swing torque of the cutting tool, for example, the swing torque is low, so that excessive hair is cut continuously to cause a knife jump phenomenon (the knife jump is that a gap is generated between working surfaces of a movable knife and a static knife, and hair cannot be cut to cause hair dragging). The embodiment of the present embodiment is a preferred embodiment because the linear cutting edge 22 is weaker in the hair-removing action than the arc-shaped cutting edge, and the hair-lifting occurs.
In addition to the above-mentioned cutter tooth technical solution, the present applicant has also proposed a technical solution of a trimming cutter, as shown in fig. 3, the trimming cutter includes a cutter body 3, and a plurality of the above-mentioned cutter teeth are provided on the cutter body 3. The trimming cutter can be a movable cutter of a hair clipper, a fixed cutter or a movable cutter or a fixed cutter of a side clipper of a shaver.
Specifically, the following description is provided: the hair-pulling means that the hair is positioned between the static knife and the movable knife of the pruning tool, and the hair cannot be cut off in time under the influence of some internal or external factors such as the direction, the angle and the like of the hair or the pruning knife, so that the hair is pulled to cause the skin to feel painful.
The above examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of protection of the present invention.
Claims (6)
1. The utility model provides a sword tooth with gradual change acute angle cutting edge, includes the sword tooth body, its characterized in that is equipped with the inclined plane in sword tooth body one side and/or both sides, and this inclined plane combines to form the cutting edge of acute angle blade with the working face of sword tooth body, and the inclined plane extends to the end of sword tooth body along the front end of sword tooth body and forms cutting edge front end and cutting edge end, and cutting edge front end contained angle S1Greater than the included angle S of the end of the blade2And the angle from the front end of the blade to the tail end of the blade is gradually reduced.
2. A tooth with a progressively acutely angled cutting edge as in claim 1 wherein the included angle S of the cutting edge nose is1Is 70-90 degrees.
3. A tooth with a progressively acutely angled cutting edge as in claim 1 wherein the included angle of the cutting edge tip S2Is 5-70 degrees.
4. A tooth with a progressively acutely angled edge as in claim 1 wherein the bevel upper point M of the edge nose is1The upper vertex M of the inclined plane higher than the tail end of the blade2And the upper vertex M of the bevel at the front end of the blade1And the upper vertex M of the bevel of the blade end2The two parts are in arc transition.
5. A tooth with a progressively acutely angled edge as in claim 1 wherein the acute edge formed at the junction of the working surface and the bevel of the tooth body is arcuate with a distal edge width W2Is greater than the width W of the front end of the blade1。
6. A trimming cutter comprising a cutter body, wherein a plurality of cutter teeth according to any one of claims 1 to 5 are provided on the cutter body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122793492.2U CN216399715U (en) | 2021-11-13 | 2021-11-13 | Cutter tooth and trimming cutter with gradually-changed acute-angle cutting edge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122793492.2U CN216399715U (en) | 2021-11-13 | 2021-11-13 | Cutter tooth and trimming cutter with gradually-changed acute-angle cutting edge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216399715U true CN216399715U (en) | 2022-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122793492.2U Active CN216399715U (en) | 2021-11-13 | 2021-11-13 | Cutter tooth and trimming cutter with gradually-changed acute-angle cutting edge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216399715U (en) |
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2021
- 2021-11-13 CN CN202122793492.2U patent/CN216399715U/en active Active
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