Pen with a swingable nib

TW202641715AActive Publication Date: 2026-10-16嚴世丞
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Patent Information

Application Number
TW114113568
Authority / Receiving Office
TW · TW
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-04-10
Publication Date
2026-10-16
Estimated Expiration
2045-04-09

AI Technical Summary

Technical Problem

Existing pens require significant forearm movement to write, leading to fatigue and a stiff writing experience due to rigid casings.

Method used

A pen with a swingable nib featuring a deflecting portion that tilts relative to the central axis, utilizing an elastic element and stabilizing mechanism to allow smoother writing without forearm movement.

Benefits of technology

Enables smoother and more comfortable writing by allowing the pen tip to deviate from the central axis, increasing the range of motion and reducing fatigue during extended writing periods.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention proposes a pen with a swingable nib, comprising a refill and a housing. The refill has a nib segment and a core segment. The nib segment is bendable, and the core segment is connected to the nib segment. The refill can penetrate the housing, and the housing has a placement portion and a tilting portion. The core segment of the refill can be placed in the placement portion, and the nib segment protrudes from one end of the placement portion. The tilting portion passes through the placement portion, and its position is at the end where the nib segment penetrates the placement portion, and it abuts against the inner wall of the placement portion. The nib segment passes through the tilting portion, and the tilting portion can tilt relative to the central axis of the placement portion. By tilting the tilting portion, the usable space of the nib is increased without moving the forearm, and multiple breaks in writing are avoided due to the need to adjust the arm to realign, thus preventing an unsightly appearance.
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Description

Technical Field

[0001] This work is about a pen-shaped stationery item, specifically a pen with a swingable nib. Prior Technology

[0002] Existing pen-type stationery, such as ballpoint pens, gel pens, or felt-tip pens, all have a casing and a refill. The refill is housed within the casing and extends through one end of the casing. However, because the casings are typically made of relatively hard materials, considerable force must be applied to move the refill within the casing during writing. Specifically, the user must move their forearm to move the refill, leading to fatigue and making it difficult to write for extended periods. Furthermore, the writing experience is somewhat stiff.

[0003] In view of this, proposing a better improvement plan is an urgent problem that the industry needs to solve. Summary of the Invention

[0004] The main purpose of this invention is to propose a pen with a swingable nib, which improves the problem of existing pen-type stationery where users have to move their forearm to move the pen to write, making writing tiring and resulting in a stiff writing experience.

[0005] To achieve the above objectives, this invention proposes a pen with a swingable nib, which has the following characteristics: A pen refill has the following features: A sharp point, which can be bent; A lead segment, which is connected to the tip segment; A housing through which the pen refill can penetrate, and the housing having: A placement portion, wherein the pen refill segment can be placed in the placement portion, and the pen tip segment protrudes from one end of the placement portion; A deflecting portion is provided through the placement portion, and the deflecting portion is positioned at the end where the pen tip section penetrates the placement portion. The deflecting portion abuts against the inner wall surface of the placement portion, and the pen tip section is inserted into the deflecting portion. The deflecting portion can deflect relative to the central axis of the placement portion. The yaw section has: An annular arc surface is fitted to the inner wall of the placement part, and the deflecting part can deflect relative to the placement part by means of the annular arc surface; The placement part has: An inner ring bevel is disposed on the placement part near one end of the pen tip segment and located on the inner surface of the placement part. The diameter of the inner ring bevel gradually increases as it moves away from the pen tip segment. The annular arc surface can abut against the inner ring bevel. This pen with a swingable nib has: An elastic element is fitted onto the pen refill and tends to push the annular arc surface of the deflection portion against the inner ring slope of the placement portion.

[0006] The pen with a swingable tip as described above, wherein the placement part has: An outer ring inclined surface is provided on the placement part near one end of the pen tip segment and located on the inner surface of the placement part. The diameter of the outer ring inclined surface gradually decreases as it moves away from the pen tip segment. When the deflection part deflects relative to the central axis of the placement part, the deflection part can abut against the outer ring inclined surface.

[0007] As mentioned earlier, a pen with a swingable nib has the following additional features: A stabilizing element is disposed between the swaying portion and the elastic element, and the stabilizing element is ring-shaped and surrounds the pen refill. When the swaying portion sways relative to the central axis of the placement portion, the swaying portion will push the stabilizing element to press against the elastic element.

[0008] As mentioned earlier, a pen with a swingable nib has the following additional features: An adjustment component, disposed within the housing, and having: An adjustment tube is fitted onto the pen refill and screwed into the inner wall of the housing, with one end of the adjustment tube abutting against the elastic element.

[0009] As described above, the pen has a wobbly tip, wherein the adjustment component has: A rotating component is engaged with the other end of the adjusting tube opposite to the elastic component, and the adjusting tube can move along the axial direction of the pen refill as the rotating component rotates.

[0010] As mentioned earlier, a pen with a swingable nib has the following additional features: A locking component, connected to the placement portion, and having: A locking element is fitted onto the pen refill and can selectively push the deflector. An adjustment member is rotatably inserted into the placement part at one end, and a locking member is connected to the adjustment member; the locking member can move along the axial direction of the pen refill as the adjustment member rotates, and push the swaying part parallel to the central axis of the placement part.

[0011] As mentioned earlier, a pen with a swingable nib, in which... The adjustment component has: At least one adjustment groove is disposed at one end of the adjustment member near the placement portion, and its opening faces the placement portion; each of the at least one adjustment groove has: A first recess and a second recess are respectively disposed on both sides of the adjustment groove and are interconnected; the depth of the second recess is greater than the depth of the first recess. The locking element has: At least one locking protrusion is movably disposed in one of the at least one adjustment grooves, and can be selectively disposed in the first recess or the second recess; The placement part has: At least one placement slot, the number and position of which correspond to the at least one locking protrusion, and each of the at least one locking protrusion can engage in one of the at least one placement slot.

[0012] The advantage of this design lies in the fact that, when the user writes, the pen tip tilts relative to the central axis of the mounting section, causing it to deviate from the central axis of the casing to a certain extent and with elasticity. This results in a smoother contact between the pen tip and the paper, allowing for a more fluid writing experience. Furthermore, because the relative arrangement of the tilting section and the mounting section increases the usable space of the pen tip without moving the forearm, it allows for smoother writing of larger characters without the need to readjust the arm and reposition, thus preventing multiple breaks in the writing and affecting the aesthetics. Simple Explanation of the Diagram

[0013] Figure 1 is a perspective view of the first embodiment of this invention; Figure 2 is an exploded view of the first embodiment of this invention; Figure 3 is a cross-sectional view of the first embodiment of this invention; Figure 4 is a partial cross-sectional view of the first embodiment of this invention; Figure 5 is a partial cross-sectional view of a swaying part in the first embodiment of this invention when it sways; Figure 6 is an exploded view of the second embodiment of this invention; Figure 7 is a perspective view of a locking component in a locked state according to the second embodiment of this invention; Figure 8 is a cross-sectional view of the locking component in the locked state according to the second embodiment of this invention; Figure 9 is a perspective view of the locking component in an unlocked state according to the second embodiment of this invention; Figure 10 is a cross-sectional view of the locking component in the unlocked state according to the second embodiment of the present invention. Implementation

[0014] Please refer to Figures 1 and 2. This invention proposes a pen with a swingable tip, which has a lead 10 and a housing 20, and can optionally have an elastic element 30, a stabilizing element 40 and an adjustment component 50.

[0015] Please refer to Figures 1 and 3. The pen refill 10 has a tip 11 and a core segment 12. The tip 11 is bendable, and the core segment 12 is connected to the tip 11. The pen refill 10 can penetrate the housing 20, and the housing 20 has a placement portion 21 and a tilting portion 22. The core segment 12 of the pen refill 10 can be placed in the placement portion 21, and the tip 11 protrudes from one end of the placement portion 21.

[0016] Please refer to Figures 4 and 5. In this embodiment, the placement portion 21 has an inner ring inclined surface 211 and an outer ring inclined surface 212. Both the inner ring inclined surface 211 and the outer ring inclined surface 212 are disposed on the placement portion 21 near the end of the pen tip segment 11, and are both located on the inner surface of the placement portion 21. The diameter of the inner ring inclined surface 211 gradually increases with distance from the pen tip segment 11. The outer ring inclined surface 212 is disposed on the placement portion 21 closer to the pen tip segment 11 than the inner ring inclined surface 211, and the diameter of the outer ring inclined surface 212 gradually decreases with distance from the pen tip segment 11.

[0017] Please refer to Figures 4 and 5. The swaying portion 22 passes through the placement portion 21, and its position is at the end where the pen tip segment 11 passes through the placement portion 21. The swaying portion 22 abuts against the inner wall surface of the placement portion 21, and the pen tip segment 11 passes through the swaying portion 22. In other words, the swaying portion 22 passes through the placement portion 21, and the pen tip segment 11 passes through the swaying portion 22. The swaying portion 22 can sway relative to the central axis of the placement portion 21. Specifically, the swaying portion 22 has an annular arc surface 221, which fits against the inner ring inclined surface 211 of the placement portion 21, and the swaying portion 22 can sway relative to the placement portion 21 by means of the annular arc surface 221. When the swaying portion 22 sways relative to the central axis of the placement portion 21, the swaying portion 22 abuts against the outer ring inclined surface 212, thereby making the swaying portion 22 more stable and limiting the degree of swaying of the swaying portion 22.

[0018] Please refer to Figures 4 and 5. The elastic element 30 is fitted onto the pen refill 10 and tends to push the annular arc surface 221 of the deflector 22 against the inner ring slope 211 of the placement portion 21, thereby positioning the deflector 22 at the end of the pen tip 11 that passes through the placement portion 21. In this embodiment, the elastic coefficient of the elastic element 30 is not limited; the user can select elastic elements 30 with different elastic coefficients according to their writing habits, adjusting the force required to deflect the deflector 22 of the pen tip 20 when writing. Specifically, the larger the elastic coefficient of the elastic element 30, the less easily the deflector 22 pushes the elastic element 30, requiring the user to exert greater force to deflect the deflector 22. Conversely, the smaller the elastic coefficient of the elastic element 30, the easier it is for the deflector 22 to push the elastic element 30, requiring the user to exert less force to deflect the deflector 22. In other embodiments, the invention may not have the elastic element 30, but only the inner ring inclined surface 211, as long as the annular arc surface 221 of the deflection part 22 can abut against the inner ring inclined surface 211 of the placement part 21.

[0019] Please refer to Figures 4 and 5. A stabilizer 40 is disposed between the sway portion 22 and the elastic member 30, and the stabilizer 40 is annular and surrounds the pen refill 10. Specifically, the stabilizer 40 can conform to the elastic member 30. When the sway portion 22 sways relative to the central axis of the placement portion 21, the stabilizer 40 is pushed by the elastic member 30 along the central axis of the placement portion 21, pressing against the sway portion 22. Because the stabilizer 40 is not elastic, it tends to straighten the sway portion 22 back to the central axis of the placement portion 21. In other words, the stabilizer 40 stabilizes the sway portion 22 to prevent it from unilaterally pressing against the elastic member 30 and causing the sway portion 22 to sway excessively.

[0020] Please refer to Figure 2. The adjustment assembly 50 is disposed within the housing 20 and includes an adjustment tube 51 and a rotating member 52. The adjustment tube 51 is sleeved on the pen refill 10 and screwed onto the inner wall of the housing 20, with one end of the adjustment tube 51 abutting against the elastic member 30. The rotating member 52 engages with the other end of the adjustment tube 51 relative to the elastic member 30, and the adjustment tube 51 can move axially along the pen refill 10 as the rotating member 52 rotates. Thus, when the user rotates the rotating member 52, causing the adjustment tube 51 to move axially along the pen refill 10, the compression of the elastic member 30 can be adjusted to achieve the required force for the deflection of the deflector 22. In other embodiments, the adjustment assembly 50 may also lack the rotating member 52, and only the adjustment tube 51 can be rotated. Since the adjustment tube 51 is screwed onto the inner wall of the housing 20, when the adjustment tube 51 is rotated, it can also move axially along the pen refill 10, thereby achieving the purpose of adjusting the compression of the elastic member 30. In other embodiments, the invention may also omit the adjustment component 50 and instead rely solely on the selection of elastic elements 30 with different elastic coefficients to adjust the force required for the user to deflect the deflection portion 22 of the housing 20 when writing.

[0021] Please refer to Figure 6. The technical features of the second embodiment of this invention are similar to those of the first embodiment, except that the pen with a swingable tip does not have an adjustment component 50, but has a locking component 60, and the placement part 21 has at least one placement groove 213.

[0022] Please refer to Figures 6 to 8. The locking assembly 60 is connected to the placement portion 21 and has a locking member 61 and an adjusting member 62. The locking member 61 is fitted onto the pen refill 10 and can selectively push the tilting portion 22. Specifically, in the second embodiment, the locking member 61 abuts against the stabilizing member 40, and the tilting portion 22 is pushed by pushing the stabilizing member 40; in other embodiments, the locking member 61 can also directly abut against the tilting portion 22. The locking member 61 has at least one locking protrusion 611, which is disposed on the end of the locking member away from the tilting portion 22.

[0023] One end of the adjusting member 62 is rotatably inserted into the placement portion 21, and the locking member 61 is connected to the adjusting member 62. The locking member 61 can move along the axial direction of the pen refill 10 as the adjusting member 62 rotates, and pushes the swaying portion 22 parallel to the central axis of the placement portion 21. In other words, the adjusting member 62 can push the locking member 61 to move along the axial direction of the pen refill 10, and cause the locking member 61 to push the swaying portion 22 back from the swaying state to the center.

[0024] The adjusting member 62 has at least one adjusting groove 621, which is disposed at one end of the adjusting member near the placement part 21, and its opening faces the placement part 21. Each adjusting groove 621 has a first recess 6211 and a second recess 6212, which are respectively disposed on both sides of the adjusting groove and are interconnected. The depth of the second recess 6212 is greater than the depth of the first recess 6211. Each locking protrusion 611 is movably disposed in one of the adjusting grooves 621 and can be selectively disposed in the first recess 6211 or the second recess 6212. The number and position of the placement grooves 213 correspond to the locking protrusions 611, and each locking protrusion 611 can engage in one of the placement grooves 213.

[0025] Please refer to Figures 7 and 8. When the user wants to fix the pen refill 10 to the central axis of the parallel placement part 21, that is, when the locking component 60 is in the locked state, the adjusting member 62 can be rotated to make the locking protrusion 611 engage in the first recess 6211 of the adjusting groove 621. Due to the depth limitation of the first recess 6211, the locking member 61 will abut against the stabilizing member 40 and push the swing part 22 to the central axis of the parallel placement part 21, thereby locking the central axis of the parallel placement part 21 of the pen refill 10. Please refer to Figures 9 and 10. If the user wants to set the pen refill 10 to a tiltable state, that is, when the locking component 60 is in an unlocked state, the adjusting member 62 can be rotated to make the locking protrusion 611 engage in the second recess 6212 of the adjusting groove 621. Since the depth of the second recess 6212 is greater than the depth of the first recess 6211, the locking member 61 will move away from the stabilizing member 40 and have a distance between them. This prevents the tilting part 22 from maintaining the central axis of the parallel placement part 21 due to the pressure of the stabilizing member 40, thereby allowing the tilting part 22 to return to a tiltable state.

[0026] When writing with this device, the user holds the placement part 21 of the casing 20 and holds the pen tip 12 perpendicular to the paper. When the pen tip 11 touches the paper, the user can control the placement part 21 of the casing 20 to make the tilting part 22 tilt relative to the placement part 21 by the annular arc surface 221. This allows the pen tip to move more freely without moving the user's forearm, thereby increasing the range of motion of the pen tip.

[0027] The advantage of this invention is that when the user writes, the pen tip 11 is tilted relative to the central axis of the placement part 21 by the tilting part 22, causing the pen tip 11 to deviate from the central axis of the housing 20 to a certain extent and elastically. This makes the contact between the pen tip and the paper smoother, allowing for a smoother and more comfortable writing experience. Furthermore, without moving the forearm, the pen tip 11 has more usable space due to the relative relationship between the tilting part 22 and the placement part 21, allowing for smoother writing of larger characters and improving aesthetics.

[0028] 10: Pen refill 11: Pen tip segment 12: Pen refill segment 20: Shell 21: Placement Section 211: Inner Ring Sloping Surface 212: Outer ring slope 213: Placement slot 22: Swing section 221: Annular arc surface 30: Elastic component 40: Stabilizer 50: Adjustment Components 51: Adjustment tube 52: Rotating component 60: Locking Component 61: Locking component 611: Locking Bump 62: Adjustment parts 621: Adjustment slot 6211: First concave part 6212:Second recess

Claims

1. A pen with a wobbly tip, comprising: a refill having: a bendable tip; a refill segment connected to the tip; a housing through which the refill can pass, and the housing having: a placement portion where the tip segment of the refill can be placed, and the tip protruding from one end of the placement portion; a tilting portion passing through the placement portion at the end where the tip protrudes through the placement portion, the tilting portion abutting against the inner wall surface of the placement portion, the tip protruding within the tilting portion, and the tilting portion being tiltable relative to the central axis of the placement portion; wherein... The swaying part has: an annular arc surface that fits against the inner wall surface of the placement part, and the swaying part can sway relative to the placement part by means of the annular arc surface; the placement part has: an inner ring inclined surface that is disposed on the placement part near one end of the pen tip segment and located on the inner surface of the placement part, the diameter of the inner ring inclined surface gradually increases as it moves away from the pen tip segment; the annular arc surface can abut against the inner ring inclined surface; the pen with a swaying pen tip has: an elastic member that is sleeved on the pen refill and tends to push the annular arc surface of the swaying part against the inner ring inclined surface of the placement part.

2. A pen with a movable tip as described in claim 1, wherein, The placement part has an outer ring inclined surface, which is disposed on one end of the placement part near the pen tip segment and located on the inner surface of the placement part. The diameter of the outer ring inclined surface gradually decreases as it moves away from the pen tip segment. When the deflection part deflects relative to the central axis of the placement part, the deflection part can abut against the outer ring inclined surface.

3. The pen with a wobbly tip as described in claim 2, further comprising: a stabilizer disposed between the wobbling portion and the elastic member, the stabilizer being annular and surrounding the pen tip, wherein when the wobbling portion wobbles relative to the central axis of the placement portion, the wobbling portion pushes the stabilizer against the elastic member.

4. The pen with a wobbly tip as described in any one of claims 1 to 3, further comprising: an adjustment assembly disposed in the housing, and having: an adjustment tube sleeved on the pen refill and screwed onto the inner wall surface of the housing, one end of the adjustment tube abutting against the elastic member.

5. A pen with a movable nib as described in claim 4, wherein, The adjustment assembly has: a rotating member engaged with the other end of the adjustment tube relative to the elastic member, and the adjustment tube being able to move axially along the pen refill as the rotating member rotates.

6. The pen with a wobbly tip as described in any one of claims 1 to 3, further comprising: a locking assembly connected to the placement portion, and having: a locking member fitted onto the pen refill and capable of selectively pushing the wobbling portion; an adjusting member, one end of which is rotatably inserted into the placement portion, and the locking member being connected to the adjusting member; the locking member being capable of moving axially along the pen refill with rotation of the adjusting member, and pushing the wobbling portion parallel to the central axis of the placement portion.

7. A pen with a movable tip as described in claim 6, wherein, The adjusting member has: at least one adjusting groove disposed at one end of the adjusting member near the placement portion, with its opening facing the placement portion; each of the at least one adjusting groove has: a first recess and a second recess, the first recess and the second recess being respectively disposed on both sides of the adjusting groove and communicating with each other; the depth of the second recess is greater than the depth of the first recess; the locking member has: at least one locking protrusion, each of the at least one locking protrusion being movably disposed in one of the at least one adjusting groove, and being selectively disposed in the first recess or the second recess; the placement portion has: at least one placement groove, the number and position of which correspond to the at least one locking protrusion, and each of the at least one locking protrusion being able to engage in one of the at least one placement groove.