Partial hair scissors
By connecting the two scissor blades with an eccentric screw, radial movement of the scissors is achieved when they open and close, solving the problem of the difficult feel of existing scissors and achieving a more effortless cutting effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-14
AI Technical Summary
Existing hairdressing scissors lack radial motion during use, resulting in difficult cutting and a poor feel.
The two scissor blades are connected by an eccentric screw, which allows the two blades to move radially when opening and closing. By setting the eccentric screw, the rotation axes of the two blades are not aligned, thus achieving radial movement.
It improves the effort and feel during cutting, making cutting easier and enhancing the barber's experience.
Smart Images
Figure CN224116216U_ABST
Abstract
Description
Technical Field
[0001] This application relates to scissors, and more particularly to a type of hair scissors with a side profile. Background Technology
[0002] The quality of hairdressing scissors has a significant impact on a hairdresser's performance. Ordinary scissors are connected by hinges, and generally only have direct engagement without movement in other directions. However, hairdressers often seek hairdressing scissors that are easier to use and have a better feel. Utility Model Content
[0003] The purpose of this utility model is to provide an eccentric haircutting scissor. With the setting of the eccentric screw, the two scissor blades can move radially while they are engaged. Due to the radial movement, haircutting can be made less strenuous.
[0004] To achieve the above objectives, the present invention provides the following technical solution.
[0005] This application discloses an eccentric hair clipper, including a first blade and a second blade hinged to an eccentric screw. The eccentric screw has a first annular step support surface. The first blade has a recessed first annular step support groove that fits into the first annular step support surface. The eccentric screw has a square post protruding from the center of the first annular step support surface. The second blade has a square hole in the center for fitting the square post. The axis of the square post is located on one side of the axis of the first annular step support surface.
[0006] Preferably, in the above-mentioned eccentric hair clippers, during assembly, the axis of the square column is kept located on the side of the axis of the first circular step support surface that is biased towards the tip of the blade, and during the rotation of the first blade, a radial displacement is formed between it and the second blade.
[0007] Preferably, in the above-mentioned eccentric hair scissors, a second annular step support surface is formed on the outer side of the first annular step support surface, and a second annular step support groove is formed on the outer side of the first annular step support groove of the first blade body, and the second annular step support surface fits into the second annular step support groove.
[0008] Preferably, in the above-mentioned eccentric hair clippers, a washer ring is provided between the second annular step support surface and the second annular step support groove.
[0009] Preferably, in the above-mentioned eccentric hair scissors, a threaded cavity is recessed at the axis of the square column, and a connecting screw is provided on the side of the second blade away from the first blade, and the connecting screw is fixedly connected to the threaded cavity by threads.
[0010] Preferably, in the above-mentioned eccentric hair scissors, the second blade body is recessed to form a third annular step support groove, and the connecting screw is fitted and engaged in the third annular step support groove.
[0011] Preferably, in the above-mentioned eccentric hair clippers, a fourth annular step support groove is recessed on the inner side of the third annular step support groove, and a square hole gasket is provided in the fourth annular step support groove, the square hole gasket being sleeved on the square column.
[0012] Preferably, in the above-mentioned eccentric hair clippers, a locking protrusion is formed on one side of the surface of the square hole gasket, and an annular toothed ring is formed on the bottom surface of the connecting screw, and the locking protrusion is engaged with the annular toothed ring.
[0013] Preferably, in the above-mentioned eccentric hair clippers, the connecting screw includes a spindle pin that is threadedly connected to the threaded cavity, and the top of the spindle pin is threadedly connected to an annular nut, with the annular toothed ring formed on the bottom surface of the annular nut.
[0014] Preferably, in the above-mentioned eccentric hair clippers, the bottom surface of the eccentric screw is flush with the side surface of the first blade body, and the top surface of the connecting screw is flush with the side surface of the second blade body.
[0015] Compared with the existing technology, the advantage of this technical solution is that by setting the eccentric screw, the rotation axes of the two scissors are not the same, so that the two scissors have radial movement when opening and closing. Due to the radial movement, it is easier and less strenuous to cut. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 The image shown is a perspective view of the off-center hair scissors in an embodiment of this utility model;
[0018] Figure 2 The diagram shown is a split view of the eccentric hair scissors in an embodiment of this utility model;
[0019] Figure 3 The image shown is a 3D view of an eccentric screw.
[0020] Figure 4 The image shown is a top view of the eccentric screw.
[0021] Figure 5The diagram shows the installation of the first tool body and the eccentric screw.
[0022] Figure 6 The image shown is a bottom view of the first blade.
[0023] Figure 7 The image shown is a top view of the second blade.
[0024] Figure 8 The image shown is a bottom view of the second blade.
[0025] Figure 9 The image shown is a bottom view of the connecting screws;
[0026] Figure 10 The diagram shows the eccentric process during the rotation of the first cutter body. Detailed Implementation
[0027] The technical solutions of the present utility model will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0028] Combination Figure 1-10 As shown, the eccentric hair clippers 100 include a first blade 102 and a second blade 103 hinged to an eccentric screw 101. A first annular stepped support surface 104 is formed on the eccentric screw 101. A first annular stepped support groove 105, which fits into the first annular stepped support surface 104, is recessed in the middle of the first blade 102. A square post 106 protrudes from the middle of the first annular stepped support surface 104 from the eccentric screw 101. A square hole 107, through which the square post 106 fits, is formed in the middle of the second blade 103. The axis of the square post 106 is located to one side of the axis of the first annular stepped support surface 104. During assembly, the axis of the square post 106 is kept offset towards the tip of the blade, and radial displacement occurs between the first blade 102 and the second blade 103 during rotation.
[0029] In actual operation, since the rotation axes of the two cutter bodies are not on the same straight line, there will be a certain radial movement between the two cutter bodies during rotation. For details, please refer to... Figure 10 Keeping the second blade stationary, the first blade will move slightly outward during opening and gradually inward when closing, thus exhibiting radial movement. This improves cutting ability and makes it easier and less strenuous for the barber to use.
[0030] Furthermore, a second annular step support surface 108 is formed on the outer side of the first annular step support surface 104, and a second annular step support groove 109 is formed on the outer side of the first annular step support groove 105 on the first cutter body 102. The second annular step support surface 108 fits into the second annular step support groove 109. A washer ring 110 is provided between the second annular step support surface 108 and the second annular step support groove 109.
[0031] In this embodiment, a spacer ring is used to improve the feel and make it easier to work between the two blades.
[0032] Furthermore, a threaded cavity 111 is recessed at the axis of the square column 106, and a connecting screw 112 is provided on the side of the second cutter body 103 opposite to the first cutter body 102. The connecting screw 112 is fixedly connected to the threaded cavity 111 by threads. A third annular step support groove 113 is recessed in the second cutter body 103, and the connecting screw 112 fits into the third annular step support groove 113.
[0033] In this embodiment, a hinge is achieved between the two blades.
[0034] Furthermore, a fourth annular step support groove 114 is recessed on the inner side of the third annular step support groove 113, and a square hole gasket 115 is provided in the fourth annular step support groove 114, which is fitted onto the square column 106.
[0035] In this embodiment, the spacer makes the movement between the two blades smoother.
[0036] Furthermore, a locking protrusion 116 is formed on one side of the surface of the square hole gasket 115, and an annular toothed ring 117 is formed on the bottom surface of the connecting screw 112, with the locking protrusion 116 engaging with the annular toothed ring 117.
[0037] In this embodiment, since the square hole gasket is fitted onto the square column, it will remain stationary. When it is properly tightened or loosened, a clicking sound will be heard to alert the installer.
[0038] Furthermore, the connecting screw 112 includes a spindle 118 that is threadedly connected to the threaded cavity 111. The top of the spindle 118 is threadedly connected to an annular nut 119, and an annular toothed ring 117 is formed on the bottom surface of the annular nut 119.
[0039] In this embodiment, the connecting screw is connected to the annular nut via a spindle pin, which allows for both coarse and fine adjustment of the tightness. The spindle pin is for coarse adjustment, and the annular nut is for fine adjustment.
[0040] Furthermore, the bottom surface of the eccentric screw 101 is flush with the side surface of the first cutter body 102, and the top surface of the connecting screw 112 is flush with the side surface of the second cutter body 103.
[0041] In this embodiment, the screw surface is not obtrusive, improving the aesthetics of the scissors and preventing them from wobbling when placed on a table.
[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0043] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.
Claims
1. A type of bias-cut hair scissors, characterized in that, The device includes a first cutting body and a second cutting body hinged to an eccentric screw. The eccentric screw has a first annular step support surface. The first cutting body has a recessed first annular step support groove that fits into the first annular step support surface. The eccentric screw has a square post protruding from the center of the first annular step support surface. The second cutting body has a square hole in the center of the square post that fits into the square post. The axis of the square post is located on one side of the axis of the first annular step support surface.
2. The off-center hair scissors according to claim 1, characterized in that, During assembly, the axis of the square column is kept located on the side of the axis of the first circular step support surface that is biased towards the tip of the blade. During the rotation of the first blade, a radial displacement is formed between it and the second blade.
3. The off-center hair scissors according to claim 1, characterized in that, A second annular step support surface is formed on the outer side of the first annular step support surface, and a second annular step support groove is formed on the outer side of the first annular step support groove of the first cutter body, and the second annular step support surface fits into the second annular step support groove.
4. The off-center hair scissors according to claim 3, characterized in that, A gasket is provided between the second annular step support surface and the second annular step support groove.
5. The off-center hair scissors according to claim 1, characterized in that, The square column has a threaded cavity recessed at its axis. The second cutter body has a connecting screw on the side opposite to the first cutter body. The connecting screw is fixedly connected to the threaded cavity by threads.
6. The off-center hair scissors according to claim 5, characterized in that, The second blade body has a recessed third annular step support groove, and the connecting screw fits into the third annular step support groove.
7. The off-center hair scissors according to claim 6, characterized in that, A fourth circular step support groove is formed by recessing the inner side of the third circular step support groove. A square hole gasket is provided in the fourth circular step support groove, and the square hole gasket is sleeved on the square column.
8. The off-center hair scissors according to claim 7, characterized in that, The square hole gasket has a locking protrusion protruding from one side of its surface, and the bottom surface of the connecting screw has an annular toothed ring, which is engaged with the annular toothed ring.
9. The off-center hair scissors according to claim 8, characterized in that, The connecting screw includes a spindle pin that is threaded to the threaded cavity, and an annular nut is threaded to the top of the spindle pin. The annular toothed ring is formed on the bottom surface of the annular nut.
10. The off-center hair scissors according to claim 5, characterized in that, The bottom surface of the eccentric screw is flush with the side surface of the first cutter body, and the top surface of the connecting screw is flush with the side surface of the second cutter body.