A writing tool with writing and lace functions

Abstract

A writing tool with writing and lace functions, characterized in that the writing tool comprises a pen barrel, a pen core, an ink outlet head, an end cover, a pen head piece and a driving mechanism, the pen barrel is a hollow tube type, comprising a head end and a tail end, the end cover is assembled at the tail end, and the side of the end cover facing the head end is provided with a guide hole in axial sliding fit with the pen core and in circumferential constraint with the pen core; the end of the pen core away from the guide hole is assembled with the ink outlet head through the head end, a pair of tip driven parts are symmetrically arranged on the outer circumferential surface of the ink outlet head in the radial direction; the pen head piece and the driving mechanism are alternately detachably assembled at the head of the pen barrel; the pen head piece stabilizes the axial and circumferential posture of the ink outlet head and the pen core; the driving mechanism comprises an assembly seat and a pair of groove cams, the outer circumferential surface of the groove cam rolls to drive the tip driven part to slide axially along the annular groove track relative to the guide hole, and form a dot-dash line trace.

Description

Technical Field

[0001] This invention relates to the field of stationery technology, specifically to a writing tool that combines writing and decorative functions. Background Technology

[0002] Lace pens, also known as outline pens, allow users to draw regular lines on paper without complicated learning or training. Their structure is based on a small grooved cam with a printed pattern at the tip. Ink is stored inside the pen barrel, and the grooved cam rolls out the ink. Users can simply drag the pen to draw fixed lace lines without having to manually trace the patterns.

[0003] The problem with existing technology is that traditional decorative pens cannot be used for regular writing, requiring users to purchase two types of pens. Furthermore, the refills of traditional decorative pens are not interchangeable with those of writing pens, necessitating separate purchases by users.

[0004] These limitations have led to the lace pen being too specialized, causing some peripheral customers to think that they can just draw some lines by hand to meet their needs without having to buy a special lace pen, thus preventing the market from expanding beyond its original scope.

[0005] Therefore, if a pen structure that combines writing and decorative functions can be designed, blurring the lines between decorative pens and writing pens, allowing users to achieve both functions with a single pen purchase, it will significantly increase the purchasing demand of peripheral customers and expand the market size. Summary of the Invention

[0006] In order to overcome the shortcomings of the above-mentioned technologies, the present invention provides a writing tool that combines writing and decorative functions.

[0007] The technical solution of the present invention: a writing tool that combines writing and decorative functions, the writing tool including a pen barrel, a pen core, an ink outlet, an end cap, a pen tip component, and a drive mechanism, the pen barrel being a hollow tube shape, including a head end and a tail end, the end cap being assembled at the tail end, and the side of the end cap facing the head end being provided with a guide hole for axial sliding engagement and circumferential constraint with the pen core; The end of the pen refill away from the guide hole extends out of the head and is assembled with the ink outlet head. A pair of tipped driven parts are symmetrically arranged radially on the outer circumferential surface of the ink outlet head. The pen tip and the drive mechanism are alternately and detachably assembled to the head of the pen barrel. The pen tip component includes an assembly end and a writing end. The assembly end is assembled with the head of the pen barrel and is provided with a countersunk through hole that matches the outline of the ink head. The countersunk through hole allows the ink head to protrude from the writing end and constrains the axial and circumferential posture stability of the ink head and the pen refill. The drive mechanism includes a mounting base and a pair of grooved cams. The mounting base includes a connecting end that is assembled with the pen head and a pair of wheel frame portions that extend to both sides of the pen refill. The grooved cams are disposed between the wheel frame portions and the tip follower portion and are axially parallel to the tip follower portion. One end of the grooved cam is rotatably engaged with the wheel frame portion, and the other end face is provided with an annular groove around the center of rotation for the tip follower portion to be inserted. The outer peripheral surface of the grooved cam rolls, causing the tip follower to slide axially relative to the guide hole along the annular groove trajectory, forming dotted and dashed lines.

[0008] The above technical solution is adopted, as shown in the appendix to the instruction manual. Figure 9-11 The structure shown in Embodiment 1 involves a grooved cam that rotates with a wheel frame at one end, while the other end has an annular groove around the center of rotation for the insertion of a driven tip. The user moves along the paper... The rolling groove cam causes the tip follower to slide axially relative to the guide hole along the annular groove track, forming dotted and dashed lines.

[0009] Its principle is to use the rest segment of the grooved cam to correspond to the axial position of the print head contacting the paper, so that when the tip follower is in the rest segment of the stroke, ink marks are left on the paper. The push / return stroke corresponds to the axial position of the paper in the print head principle. When the tip follower is in the push / return stroke, the print head leaves the paper axially, forming the middle section of the ink mark. This creates dotted lines as the user holds the pen and rolls the grooved cam across the paper.

[0010] As per the instruction manual Figure 1-3 In the structure of Embodiment 2 shown, when the user needs to write normally, this application switches the assembly to a pen tip component. By utilizing the countersunk through hole that is compatible with the ink head, the axial and circumferential posture of the ink head and the pen refill is constrained to be stable. That is, the pen refill is pressed against the bottom of the guide hole and the rotation of the tip follower is blocked by the limiting groove, thereby forming a stable writing.

[0011] A further feature of the present invention is that the diameter of the central hole of the pen barrel is larger than that of the pen core and the ink outlet, and a radial swing gap is provided between the pen core and the end of the pen barrel. The pen core is made of an elastic material. The annular groove is a concentric annular groove, and the bottom surface of the concentric annular groove is provided with a cylindrical cam profile surface that is axially undulating with respect to the driven part at the opposite tip. The concentric annular grooves of the pair of grooved cams are arranged in opposite directions, and the driven part of the actuating tip swings back and forth relative to its own axis to form a wavy line mark.

[0012] In one embodiment, orientation and installation position markings can be provided on the grooved cam, allowing the driven tip to be inserted into the corresponding marking position for quick assembly.

[0013] The above technical solution is adopted, as shown in the appendix to the instruction manual. Figure 4-8 The structure of Embodiment 3 shown can form wavy handwriting on the basis of the original pen structure by changing the structure of the grooved cam. The principle is to use the characteristics of the cylindrical cam so that the concentric annular groove constrains the axial movement of the pen core. At the same time, the bottom surface of the concentric annular groove is provided with a cylindrical cam profile surface that undulates axially relative to the tip follower. The concentric annular grooves of a pair of grooved cams are arranged in opposite directions of undulation, which constrains the tip follower from both sides to form a stable symmetrical structure. The tip follower is pushed to swing back and forth relative to its own axis to form wavy handwriting.

[0014] The pen refill in this application needs to swing, so it needs a certain degree of elasticity to prevent breakage. Semi-rigid plastics such as TPU thermoplastic polyurethane in the prior art can adapt to the small-amplitude reciprocating swing of this application. There are many such materials, and it is sufficient to adapt to the nature of the pen refill.

[0015] A further feature of the present invention is that the countersunk through hole includes a small hole through which the ink tip passes through the writing end, a central hole for inserting the pen refill, and a limiting groove for engaging with the tip follower.

[0016] By adopting the above technical solution, the pen tip can form a stable connection with the pen refill, ink outlet, and pen head, so that the components are stable and do not move during writing, resulting in stable handwriting.

[0017] A further feature of the present invention is that the pen tip and the mounting base are respectively provided with mounting holes for insertion and connection with the pen barrel head or threaded holes for threaded connection; The preferred technical solution is a plug-in connection, which allows users to easily plug and unplug the pen tip and drive mechanism to switch functions.

[0018] A further feature of the present invention is that the wheel frame is made of an elastic material, which bends to allow the tip follower to enter the groove and springs back to abut the tip follower.

[0019] A further feature of the present invention is that one end of the pen tip or mounting base pen barrel end cap is inserted and fitted.

[0020] Using the above technical solution, when switching writing modes, the disassembled parts can be attached to the other end of the pen barrel.

[0021] The beneficial effects of this invention are as follows: This application realizes the switching between writing and decorative functions under the same pen refill and ink outlet structure, so that users can switch the pen function by simply plugging and unplugging the pen tip or the mounting base. Moreover, the assembly process does not require disassembling the ink outlet, so there will be no ink leakage. It eliminates the need to buy two pens and two pen refills, provides an optimized solution for peripheral customers, and expands the application scenarios.

[0022] For example, for children who want decorative pens, pens with interchangeable assembly structures are more attractive than buying multiple pens. The assembly structure, after being aesthetically designed, can be used as an interchangeable accessory, making it interactive.

[0023] Traditional pens, for stable writing, have a fixed connection between the refill, ink tip, and pen tip. This application, however, designs the axial reciprocating motion and oscillating movement between the refill, ink tip, and drive mechanism, enabling the ink tip to create continuous, reciprocating wavy lines and dotted lines. Furthermore, the curved design of the annular groove allows for different spacing between dots and strokes, and the undulation design of the cylindrical cam profile creates different wave amplitudes. This leads to the availability of replaceable accessories, further developing a series of products to meet market demands.

[0024] Moreover, through the structural design of the pen tip, the pen core and ink tip can still be stabilized and the writing posture can be maintained after switching the pen tip assembly, thus realizing the switching between writing and decorative functions. Attached Figure Description

[0025] Figure 1 This is the structure of Embodiment 1 of the present invention. Figure 1 ; Figure 2 This is the structure of Embodiment 1 of the present invention. Figure 2 ; Figure 3 This is the structure of Embodiment 1 of the present invention. Figure 1 ; Figure 4 This is the structure of Embodiment 2 of the present invention. Figure 2 ; Figure 5 This is the structure of Embodiment 2 of the present invention. Figure 3 ; Figure 6 This is the structure of Embodiment 2 of the present invention. Figure 4 ; Figure 7 This is the structure of Embodiment 2 of the present invention. Figure 5 ; Figure 8 This is the structure of Embodiment 2 of the present invention. Figure 6 ; Figure 9This is the structure of Embodiment 3 of the present invention. Figure 1 ; Figure 10 This is the structure of Embodiment 3 of the present invention. Figure 2 ; Figure 11 This is the structure of Embodiment 3 of the present invention. Figure 3 ; Among them, the pen barrel 1, radial swing gap 11, pen core 2, ink outlet 3, tip follower 31, end cap 4, guide hole 41, pen tip 5, countersunk through hole 51, small hole 511, center hole 512, limiting groove 513, mounting base 6, wheel frame 61, grooved cam 7, annular groove 71, concentric annular groove 72, and cylindrical cam profile surface 73.

[0026] To better illustrate this embodiment, some parts in the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the actual size of the product. Furthermore, the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Detailed Implementation

[0027] To make the technical solution and advantages of this application clearer, the technical solution of this application will be described in a clearer and more complete manner below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some embodiments of this application, and are only used to explain this application, not to limit this application. It should be noted that, for ease of description, only the parts related to this application are shown in the accompanying drawings. Other related parts can be referred to the general design. In the absence of conflict, the embodiments and technical features in the embodiments of this application can be combined with each other to obtain new embodiments.

[0028] The invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-3 As shown, a writing tool that combines writing and decorative functions is provided. The writing tool includes a pen barrel 1, a pen core 2, an ink outlet 3, an end cap 4, a pen tip 5, and a drive mechanism. The pen barrel 1 is a hollow tube shape, including a head end and a tail end. The end cap 4 is assembled at the tail end. The side of the end cap 4 facing the head end is provided with a guide hole 41 that makes axial sliding fit with the pen core 2 and circumferential constraint. The pen refill 2, at the end away from the guide hole 41, extends out of the tip and is assembled with the ink head 3. On the outer circumferential surface of the ink head 3, a pair of tipped follower parts 31 are symmetrically arranged in the radial direction. The pen tip 5 and the drive mechanism are alternately and detachably assembled to the head of the pen barrel 1; The pen tip 5 includes an assembly end and a writing end. The assembly end is assembled with the head of the pen barrel 1 and is provided with a countersunk through hole 51 that matches the contour of the ink head 3. The countersunk through hole 51 allows the ink head 3 to protrude from the writing end and constrains the axial and circumferential posture stability of the ink head 3 and the pen refill 2. The drive mechanism includes a mounting base 6 and a pair of grooved cams 7. The mounting base 6 includes a connecting end that is assembled with the head of the pen barrel 1 and a pair of wheel frame portions 61 extending to both sides of the pen core 2. The grooved cams 7 are disposed between the wheel frame portions 61 and the tip follower portion 31 and are axially parallel to the tip follower portion 31. One end of the grooved cam 7 is rotatably engaged with the wheel frame portion 61, and the other end face is provided with an annular groove 71 around the center of rotation for the tip follower portion 31 to be inserted. The outer peripheral surface of the grooved cam 7 rolls, causing the tip follower 31 to slide axially relative to the guide hole 41 along the trajectory of the annular groove 71, forming dotted and dashed strokes.

[0029] As per the instruction manual Figure 9-11 The structure shown in Embodiment 1 involves a grooved cam 7 that rotates with the wheel frame 61 at one end, while the other end has an annular groove 71 around the center of rotation for the insertion of the driven tip 31. The user moves along the paper... The rolling groove cam 7 causes the tip follower 31 to slide axially relative to the guide hole 41 along the trajectory of the annular groove 71, forming dotted and dashed pen marks.

[0030] Its principle is to use the rest segment of the grooved cam 7 to correspond to the axial position of the print head 3 in contact with the paper, so that when the tip follower is in the rest segment, ink marks are left on the paper. The push / return stroke corresponds to the axial position of the paper on the principle of the print head 3. When the tip follower is in the push / return stroke, the print head 3 leaves the paper axially, forming the middle section of the ink mark. This creates dotted lines as the user holds the pen and rolls the grooved cam 7 across the paper.

[0031] As per the instruction manual Figure 1-3 In the structure of Embodiment 2 shown, when the user needs to write normally, this application switches to assembling a pen tip 5. The countersunk through hole 51 that is adapted to the ink outlet 3 constrains the axial and circumferential posture of the ink outlet 3 and the pen refill 2 to be stable. That is, the pen refill 2 is pressed against the bottom of the guide hole 41 and the rotation of the tip follower 31 is blocked by the limiting groove, thereby forming a stable writing.

[0032] The diameter of the central hole of the pen barrel 1 is larger than that of the pen core 2 and the ink outlet 3. A radial swing gap 11 is provided between the pen core 2 and the end of the pen barrel 1. The pen core 2 is made of elastic material. The annular groove 71 is a concentric annular groove 72, and the bottom surface of the concentric annular groove 72 is provided with a cylindrical cam profile surface 73 that is axially undulating relative to the tip follower 31. The concentric annular grooves 72 of the pair of grooved cams 7 are arranged in opposite directions, and the driven part 31 of the actuating tip swings back and forth relative to its own axis to form a wavy line handwriting.

[0033] As per the instruction manual Figure 4-8 The structure of Embodiment 3 shown can form wavy handwriting on the basis of the original pen structure by changing the structure of the grooved cam 7. The principle is to use the characteristics of the cylindrical cam so that the concentric annular groove 72 constrains the axial movement of the pen core 2. At the same time, a cylindrical cam profile surface 73 with undulating axial movement relative to the tip follower 31 is set on the bottom surface of the concentric annular groove 72. The concentric annular grooves 72 of the pair of grooved cams 7 are arranged in opposite undulating directions, which constrains the tip follower 31 from both sides to form a stable symmetrical structure. The tip follower 31 is pushed to swing back and forth relative to its own axis to form wavy handwriting.

[0034] The pen refill 2 in this application needs to swing, so it needs a certain degree of elasticity to prevent it from breaking. Semi-rigid plastics such as TPU thermoplastic polyurethane in the prior art can adapt to the small-amplitude reciprocating swing of this application. There are many such materials, and it is sufficient to adapt to the properties of the pen refill 2.

[0035] The countersunk through hole 51 includes a small hole 511 through which the ink head 3 passes, a central hole 512 that is inserted into the pen refill 2, and a limiting groove 513 that engages with the tip follower 31.

[0036] By adopting the above technical solution, the pen tip 5 can form a stable connection with the pen core 2, the ink outlet 3, and the head of the pen barrel 1, so that the components are stable and do not move during writing, and the pen handwriting is stable.

[0037] The pen tip 5 and the mounting base 6 are respectively provided with mounting holes 8 for inserting and connecting with the head of the pen barrel 1 or threaded holes for threaded connection. The preferred design is a plug-in connection, allowing users to easily plug and unplug the pen tip 5 and the drive mechanism to switch functions.

[0038] The wheel frame 61 is made of an elastic material, which bends to allow the tip follower 31 to enter the groove and springs back to abut against the tip follower 31.

[0039] The pen tip 5 or the mounting base 6 is inserted into one end of the pen barrel 1 and fitted together.

[0040] When switching writing modes, the disassembled parts can be attached to the other end of the pen barrel 1.

[0041] The beneficial effects of this invention are as follows: This application realizes the switching between writing and decorative functions under the same pen refill 2 and ink outlet 3 structure, so that users can switch the pen function by simply plugging and unplugging the pen tip 5 or the mounting base 6. Moreover, the assembly process does not require disassembling the ink outlet, so there will be no ink leakage. It eliminates the need to purchase two types of pens and two types of pen refills 2, provides an optimized solution for peripheral customers, and expands the application scenarios.

[0042] For children who want decorative pens, pens with interchangeable assembly structures are more appealing than buying multiple pens. The aesthetically designed assembly base can be used as an interchangeable accessory, making it interactive.

[0043] In traditional pens, the refill 2, ink tip 3, and pen tip 5 are all fixedly connected for stable writing. However, this application, through the axial reciprocating motion and oscillating design of the refill 2, ink tip 3, and drive mechanism, enables the ink tip 3 to form continuous, reciprocating wavy strokes and dotted lines. Furthermore, by designing the curve of the annular groove 71, different specifications of dot and stroke spacing are created; and by designing the undulation amplitude of the cylindrical cam profile surface 73, different specifications of wave amplitude are created. This leads to the availability of replaceable accessories for users, further developing a series of products to meet market demands.

[0044] Moreover, thanks to the structural design of the pen tip component 5, the writing posture of the pen core 2 and the ink outlet 3 can still be stabilized after switching to assembling the pen tip component 5, thus realizing the switching between writing and decorative functions.

[0045] The technical solution of this application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. Those skilled in the art should understand that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A writing tool that combines writing and decorative functions, characterized in that: The writing instrument includes a pen barrel, a pen refill, an ink outlet, an end cap, a pen tip, and a drive mechanism. The pen barrel is a hollow tube with a head end and a tail end. The end cap is assembled at the tail end. The side of the end cap facing the head end has a guide hole that allows for axial sliding contact with the pen refill and circumferential constraint. The end of the pen refill away from the guide hole extends out of the head and is assembled with the ink outlet head. A pair of tipped driven parts are symmetrically arranged radially on the outer circumferential surface of the ink outlet head. The pen tip and the drive mechanism are alternately and detachably assembled to the head of the pen barrel. The pen tip component includes an assembly end and a writing end. The assembly end is assembled with the head of the pen barrel and is provided with a countersunk through hole that matches the outline of the ink head. The countersunk through hole allows the ink head to protrude from the writing end and constrains the axial and circumferential posture stability of the ink head and the pen refill. The drive mechanism includes a mounting base and a pair of grooved cams. The mounting base includes a connecting end that is assembled with the pen head and a pair of wheel frame portions that extend to both sides of the pen refill. The grooved cams are disposed between the wheel frame portions and the tip follower portion and are axially parallel to the tip follower portion. One end of the grooved cam is rotatably engaged with the wheel frame portion, and the other end face is provided with an annular groove around the center of rotation for the tip follower portion to be inserted. The outer peripheral surface of the grooved cam rolls, causing the tip follower to slide axially relative to the guide hole along the annular groove trajectory, forming dotted and dashed lines.

2. A writing tool with both writing and decorative functions according to claim 1, characterized in that: The diameter of the central hole of the pen barrel is larger than that of the pen core and the ink outlet. A radial swing gap is provided between the pen core and the end of the pen barrel. The pen core is made of an elastic material. The annular groove is a concentric annular groove, and the bottom surface of the concentric annular groove is provided with a cylindrical cam profile surface that is axially undulating with respect to the driven part at the opposite tip. The concentric annular grooves of the pair of grooved cams are arranged in opposite directions, and the driven part of the actuating tip swings back and forth relative to its own axis to form a wavy line mark.

3. A writing tool with both writing and decorative functions according to claim 1 or 2, characterized in that: The countersunk hole includes a small hole through which the ink tip passes through the writing end, a central hole for inserting the pen refill, and a limiting groove for engaging with the tip follower.

4. A writing tool with both writing and decorative functions according to claim 3, characterized in that: The pen tip and the mounting base are respectively provided with mounting holes for insertion and connection with the pen barrel head or threaded holes for threaded connection.

5. A writing tool with both writing and decorative functions according to claim 4, characterized in that: The wheel frame is made of an elastic material, which bends to allow the tip follower to enter the groove and springs back to abut the tip follower.

6. A writing tool with both writing and decorative functions according to claim 5, characterized in that: The pen tip or mounting base is inserted and fitted into one end of the pen barrel cap.

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