Triangular pen
By designing a cross-section of the triangle pen rod with a specific arc angle and radius, the problems of poor rotational consistency and instability of the triangle pen grasp are solved, and higher pen grip comfort and stability are achieved.
Patent Information
- Application Number
- CN202422144138.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-02
AI Technical Summary
The existing triangular pens have poor rotational consistency and low comfort when rotating, and the stress points are dispersed when holding, resulting in unstable pen holding.
A triangle pen is designed, and the cross-section of the pen shaft consists of three first arcs and three second arcs. The first arc and the second arc are smoothly connected and transitioned. The angle of the first arc is 70°-74° and the angle of the second arc is 45°-49° to ensure rotational consistency and comfort of holding the pen.
By optimizing the triangle section of the pen holder, the continuous rotation of the pen and the user's comfort of holding the pen is achieved, while the force point of the finger is concentrated, improving the stability of holding the pen.
Smart Images
Figure CN223045451U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a pen, especially a pen for writing, painting, or both writing and painting. Background Art
[0002] With the improvement of social productivity, users' requirements for common writing tools (pens) are gradually increasing. Not only does the pen need to write smoothly during use, but it also needs to have good pen-holding performance (pen-holding performance refers to the comfort level of users continuously using the pen).
[0003] Common writing tool pens come in various styles, and their cross-sections are in various shapes, including circular, regular hexagon, equilateral triangle, etc. After a user holds the pen in one position for a long time while writing, not only will the fingers cause hand discomfort due to long-term curling, but also the long-term wear at one position of the pen tip will reduce the writing smoothness of the pen. Usually, the user will rotate the pen shaft to change the position and stretch the hand muscles, and then continue writing.
[0004] Based on the user's pen-holding posture, the equilateral triangle pen has the best fit with the fingers when holding the pen, and the equilateral triangle pen can correct the user's pen-holding posture. However, for the equilateral triangle composed of three planes, its three edges are acute angles. When the user rotates the pen shaft, the continuity of rotating the pen shaft is not good. The comfort level of the acute-angle edges is poor and they are easily chipped. Therefore, the three edges of the equilateral triangle pen need to be rounded to increase the continuity of rotation and improve the comfort level of the user's pen-holding. The finger pulp is arc-shaped and has a certain elasticity. When a user holds a flat object, the force application points are relatively dispersed, so the held object is likely to slip out of the hand. Therefore, the three sides of the equilateral triangle pen should be provided with a certain arc so that the force application points are concentrated when the user holds the triangular pen, and the stability of the user's pen-holding is improved.
[0005] Furthermore, the cross-section of the triangular pen should be set as a triangle composed of arcs, with smooth transitions between adjacent arcs, and the angles of the arcs are appropriate, simultaneously meeting the user's pen-holding requirements and the rotation requirements when adjusting the pen shaft. Summary of the Invention
[0006] The purpose of the utility model is to construct a triangular pen based on the existing triangular pen, meeting the needs of users for comfortable pen-holding and enabling the triangular pen to rotate continuously.
[0007] A triangular pen, comprising a pen barrel, a pen cap and a refill. The refill is fixedly installed inside the pen barrel, and the pen cap is cooperatively connected with the pen barrel. The cross-sections of the pen cap and the pen barrel are triangular. It is characterized in that the triangle is composed of three first arcs and three second arcs. The first arc and the second arc are connected, and the transition between adjacent first arcs and second arcs is smooth. The angle of the first arc is α, the radius of the first arc is R1, the angle of the second arc is β, the radius of the second arc is R2, both α and β are acute angles, α>β, and R1<R2.
[0008] Further, the center of the cross-section of the refill coincides with the center of the cross-section of the pen barrel, and the center of the cross-section of the pen barrel coincides with the center of the cross-section of the pen cap.
[0009] Further, 70° < the angle α of the first arc < 74°;
[0010] 45° < the angle β of the second arc < 49°.
[0011] The setting of the angles of the first arc and the second arc not only makes the transition between them smooth, but also makes the stress points concentrated when the user holds the triangular pen, so the stability of the user's pen-holding is better.
[0012] Further, 12.6mm < the radius R1 of the first arc < 12.7mm;
[0013] 34.2mm < the radius R2 of the second arc < 34.4mm.
[0014] Further, the refill includes an oil pipe and a nib. The oil pipe is provided with ink, and the nib is fixedly installed at one end of the oil pipe. The outer diameter dimension of the nib is the same as the inner diameter dimension of the oil pipe.
[0015] Further, the pen barrel includes a tubular pen body and a pen tip. The inner diameter dimension of the front part of the tubular pen body is smaller than the inner diameter dimensions of the middle part and the tail part (taking the writing end of the triangular pen as the front). The inner diameter dimension of the front end of the tubular pen body can only accommodate the nib to pass through, and the inner diameter dimension of the front end of the tubular pen body is smaller than the outer diameter dimension of the oil pipe. The inner diameter dimensions of the middle part and the tail part of the tubular pen body can accommodate the oil pipe to pass through;
[0016] The pen tip is arranged at the tail part of the tubular pen body.
[0017] Further, the front end of the pen tip abuts against the rear end of the oil pipe.
[0018] Furthermore, the pen cap includes a cap body and an end fastener, and the end fastener is detachably installed on the cap body. Users can select end fasteners of different styles according to actual needs, such as: an end fastener with a pen clip, an end fastener with the same style as the cap body, an end fastener with a carrying cord, etc.
[0019] Furthermore, the shape of the outer peripheral surface of the cross-section of the pen cap is the same as the shape of the outer peripheral surface of the cross-section of the pen barrel.
[0020] The beneficial effects of the present utility model are as follows: A triangular pen disclosed in this application can, through a triangular cross-section composed of a first arc and a second arc, ensure the continuous rotation of the triangular pen while making the user hold the pen comfortably, improve the comfort of the user's continuous pen-holding, and when the user's finger pulp contacts the second arc surface, the stress point is concentrated, improving the pen-holding stability of the user. Also, through the detachable end fastener, the change of the carrying method of the triangular pen is realized, effectively increasing the applicability of the triangular pen.
[0021] The above description is only an overview of the technical solution of the present utility model. In order to be able to understand the technical means of the present utility model more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable, the following specific preferred embodiments are given, and in conjunction with the accompanying drawings, the details are described as follows. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings;
[0023] Figure 1 is a schematic diagram of the overall structure of a specific example of the triangular pen of the present utility model;
[0024] Figure 2 is Figure 1 the schematic cross-sectional structure diagram of
[0025] Figure 3 is a schematic diagram of the structure of the pen barrel in a specific example of the triangular pen of the present utility model;
[0026] Figure 4 is a schematic diagram of the structure of the pen cap in a specific example of the triangular pen of the present utility model;
[0027] Figure 5 is Figure 1 the top view of
[0028] In the figure: 101, pen cap; 102, pen barrel; 103, pen refill; 104, pen tip; 105, cap body; 106, tubular pen barrel; 107, end fastener; 108, second arc; 109, first arc. Detailed implementation mode
[0029] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0030] A triangular pen of the present utility model will be further described with reference to the accompanying drawings.
[0031] As Figure 1 , Figure 2 and Figure 3 shown, in this embodiment, the triangular pen described includes a pen refill 103, a pen barrel 102 and a pen cap 101. The pen refill 103 is fixedly installed in the pen barrel 102, and the pen cap 101 is cooperatively connected with the pen barrel 102.
[0032] The center of the cross-section of the pen refill 103 coincides with the center of the cross-section of the pen barrel 102, and the center of the cross-section of the pen barrel 102 coincides with the center of the cross-section of the pen cap 101.
[0033] The pen refill 103 includes an oil pipe and a pen tip. Ink is provided in the oil pipe, and the pen tip is fixedly installed at one end of the oil pipe.
[0034] The pen barrel 102 is of a hollow structure. The pen barrel 102 includes a tubular pen barrel 106 and a pen tip 104. The tubular pen barrel 106 is composed of a front part, a middle part and a tail part. The inner diameters of the middle part and the tail part of the tubular pen barrel 106 are the same, and the inner diameter sizes of the middle part and the tail part of the tubular pen barrel 106 are larger than the outer diameter size of the above-mentioned oil pipe. The inner diameter of the front part of the tubular pen barrel 106 is smaller than the inner diameter sizes of its middle part and tail part. The inner diameter size of the front part of the tubular pen barrel 106 can only accommodate the above-mentioned pen tip to pass through, and the inner diameter size of the front part of the tubular pen barrel 106 is smaller than the outer diameter size of the above-mentioned oil pipe.
[0035] The pen tip 104 is fixedly installed at the tail of the tubular pen barrel 106. A part of the pen tip 104 abuts against the inner wall of the tubular pen barrel 106, and the other part of the pen tip 104 is placed outside the tubular pen barrel 106.
[0036] As Figure 4 shown, the pen cap 101 includes a cap body 105 and an end fastener 107. The end fastener 107 is detachably and tightly installed at the front end of the cap body 105. The end fastener 107 has the same style as the cap body 105, that is, the shape of the cross-section of the end fastener 107 is included in the shape of the cross-section of the cap body 105.
[0037] As Figure 5 shown, the top view of the triangular pen is triangular, and the cross-sections of the pen cap 101 and the pen barrel 102 are also triangular. This triangle is composed of three sections of first arcs 109 and three sections of second arcs 108. The first arcs 109 and the second arcs 108 are connected, and the transition between adjacent first arcs 109 and second arcs 108 is smooth. The angle α of the first arc 109 is 72.06°, the radius R1 of the first arc 109 is 12.65 mm, the angle β of the second arc 108 is 47.47°, and the radius R2 of the second arc 108 is 34.31 mm.
[0038] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.
Claims
1. A triangular pen, comprising a pen holder, a pen cap and a pen core, wherein the pen core is fixedly installed in the pen holder, the pen cap is cooperatively connected with the pen holder, and the cross-section of the pen cap and the pen holder is triangular, characterized in that: The triangle is composed of three first arcs and three second arcs, the first arcs are connected to the second arcs, and the transition between adjacent first arcs and second arcs is smooth, the angle of the first arc is α, the radius of the first arc is R1, the angle of the second arc is β, the radius of the second arc is R2, α and β are both acute angles, α>β, R1 <R2。 2. A triangular pen according to claim 1, characterized in that: The center of the cross section of the pen core coincides with the center of the cross section of the pen holder, and the center of the cross section of the pen holder coincides with the center of the cross section of the pen cap.
3. A triangular pen according to claim 1, characterized in that: 70°<angle α of the first circular arc<74°; 45°<the angle of the second arc is β<49°.
4. A triangular pen according to claim 1, characterized in that: 12.6mm<The radius of the first arc is R1 <12.7mm; 34.2mm<The radius of the second arc is R2 <34.4mm.
5. A triangular pen according to claim 1, characterized in that: The pen core comprises an oil tube and a pen tip. Ink is arranged in the oil tube. The pen tip is fixedly mounted at one end of the oil tube. The outer diameter of the pen tip is the same as the inner diameter of the oil tube.
6. A triangular pen according to claim 5, characterized in that: The pen holder comprises a tubular pen body and a pen top, the inner diameter of the front portion of the tubular pen body is smaller than the inner diameters of the middle portion and the tail portion, the inner diameter of the front end of the tubular pen body can only accommodate the pen tip, and the inner diameter of the front end of the tubular pen body is smaller than the outer diameter of the oil pipe, and the inner diameter of the middle portion and the tail portion of the tubular pen body can accommodate the oil pipe; The pen top is arranged at the tail of the tubular pen body.
7. A triangular pen according to claim 6, characterized in that: The front end of the pen top is pressed against the rear end of the oil pipe.
8. A triangular pen according to claim 1, characterized in that: The pen cap comprises a cap body and an end clamp, and the end clamp is detachably mounted on the cap body.
9. A triangular pen according to claim 1, characterized in that: The shape of the outer circumference of the cross section of the pen cap is the same as the shape of the outer circumference of the cross section of the pen barrel.