A pen with a swiveling tip

Abstract

To address the problems of conventional pen-type writing instruments, such as hand fatigue and an unsmooth writing experience due to the user having to move their forearm to manipulate the pen, we provide a pen with a pivoting tip. [Solution] A pen with a pivoting tip, comprising a pen core and a housing, wherein the pen core comprises a bendable tip portion and a core portion connected to the tip portion, the pen core penetrates the housing, the housing comprises a housing portion and a pivot portion, the core portion of the pen core is housed in the housing portion, the tip portion protrudes from one end of the housing portion, and the pivot portion is housed in the housing portion Insertion And so, Insertion The position is the end of the pen tip that penetrates the housing, and furthermore the oscillating part abuts against the inner wall surface of the housing, and the pen tip is on the oscillating part Insertion The swinging part is pivotable relative to the central axis of the housing.

Description

Technical Field

[0001] The present invention relates to pen-shaped stationery, and particularly to a pen with a swingable pen tip.

Background Art

[0002] As described in Japanese Patent Application Laid-Open No. 2020-199648, conventional pen-shaped stationery, such as ballpoint pens, gel ink pens, signature pens, etc., all include a housing and a pen core. The pen core is provided inside the housing and penetrates one end of the housing. However, the material of the conventional housing is generally hard, and in order to move the pen core during writing, a relatively large force usually has to be applied to the housing to move the pen core. Specifically, the user moves the forearm to move the pen core to write, so the hand easily gets tired during writing, it is difficult to write for a long time, and the writing feel is not smooth.

[0003] Therefore, in this field, it has been an urgent issue to solve the problems and propose better improvement measures.

Summary of the Invention

[0004] The main object of the present invention is to provide a pen with a swingable pen tip in order to solve the problems of conventional pen-shaped stationery, such as easy hand fatigue and non-smooth writing feel, when the user moves the forearm to move the pen-shaped stationery to write.

[0005] The present invention provides a pen with a swingable pen tip to achieve the above object. The pen with a swingable pen tip includes a pen core and a housing. The pen core includes a bendable pen tip portion and a pen core portion connected to the pen tip portion. The pen core penetrates the housing, and the housing includes a storage portion and a swing portion. The pen core portion of the pen core is accommodated in the storage portion, and the pen tip portion protrudes from one end of the storage portion. The swing portion is provided in the storage portion Insertion and Insertion The position is such that the pen tip portion penetrates the housing portion at one end, and the oscillating portion abuts against the inner wall surface of the housing portion, and the pen tip portion abuts against the oscillating portion Insertion The swinging part is pivotable with respect to the central axis of the housing part.

[0006] In this invention, when the user writes, the oscillating part oscillates relative to the central axis of the housing, allowing the pen tip to be elastically shifted from the central axis of the housing by a certain width. This results in softer contact between the pen tip and the paper, allowing the user to write more smoothly. Furthermore, the relative relationship between the oscillating part and the housing expands the usable space of the pen tip without moving the forearm, allowing for smoother writing when writing large characters. This eliminates the need to repeatedly interrupt writing to change the position of the hand or arm, which can impair the quality of the writing. [Brief explanation of the drawing]

[0007] [Figure 1] This is a perspective view of Embodiment 1 of the present invention. [Figure 2] This is an exploded view of Embodiment 1 of the present invention. [Figure 3] This is a cross-sectional view of Embodiment 1 of the present invention. [Figure 4] This is a partial cross-sectional view of Embodiment 1 of the present invention. [Figure 5] This is a partial cross-sectional view of the swinging part according to Embodiment 1 of the present invention when it is swinging. [Figure 6] This is an exploded view of Embodiment 2 of the present invention. [Figure 7] This is a perspective view of the lock unit according to Embodiment 2 of the present invention when it is in the locked state. [Figure 8] This is a cross-sectional view of the locking unit according to Embodiment 2 of the present invention when it is in the locked state. [Figure 9] This is a perspective view of the locking unit according to Embodiment 2 of the present invention when it is in an unlocked state. [Figure 10]This is a cross-sectional view of the locking unit according to Embodiment 2 of the present invention when it is in an unlocked state. [Modes for carrying out the invention]

[0008] As shown in Figures 1 and 2, the present invention relates to a pen with a pivotable tip, comprising a pen tip 10 and a housing 20, and optionally equipped with an elastic member 30, a stabilizing member 40, and an adjustment unit 50.

[0009] As shown in Figures 1 and 3, the pen nib 10 comprises a bendable pen tip portion 11 and a pen nib portion 12 connected to the pen tip portion 11. The pen nib 10 penetrates the housing 20, which comprises a housing portion 21 and a pivot portion 22. The pen nib portion 12 of the pen nib 10 is housed in the housing portion 21, and the pen tip portion 11 protrudes from one end of the housing portion 21.

[0010] As shown in Figures 4 and 5, according to this embodiment, the housing portion 21 comprises an inner annular inclined surface 211 and an outer annular inclined surface 212. Both the inner annular inclined surface 211 and the outer annular inclined surface 212 are provided at one end of the housing portion 21 closest to the pen tip portion 11 and are located on the inner surface of the housing portion 21. The diameter of the inner annular inclined surface 211 gradually increases as it moves away from the pen tip portion 11. The outer annular inclined surface 212 is provided at a position closer to the pen tip portion 11 than the inner annular inclined surface 211, and its diameter gradually decreases as it moves away from the pen tip portion 11.

[0011] As shown in Figures 4 and 5, the swinging part 22 is located in the housing part 21. Insertion And so, Insertion The position is the one end of the pen tip portion 11 that penetrates the housing portion 21. The swinging portion 22 abuts against the inner wall surface of the housing portion 21, and the pen tip portion 11 is in contact with the swinging portion 22. Insertion In other words, the oscillating part 22 is connected to the housing part 21. Insertion At the same time, the pen tip portion 11 moves to the oscillating portion 22. InsertionThe oscillating part 22 is pivotable with respect to the central axis of the housing part 21. More specifically, the oscillating part 22 has an annular curved surface 221, which is in close contact with the inner annular inclined surface 211 of the housing part 21, and the oscillating part 22 is pivotable with respect to the housing part 21 via the annular curved surface 221. Therefore, when the oscillating part 22 pivots with respect to the central axis of the housing part 21, the oscillating part 22 becomes more stable by contacting the outer annular inclined surface 212, thus limiting the degree of its oscillation.

[0012] As shown in Figures 4 and 5, the elastic member 30 is fitted onto the pen tip 10 and presses against the annular curved surface 221 of the oscillating part 22, bringing it into contact with the inner annular inclined surface 211 of the housing part 21, thereby positioning the oscillating part 22 at the one end where the pen tip 11 penetrates the housing part 21. In this embodiment, the elastic modulus of the elastic member 30 is not limited, and various elastic moduli of the elastic member 30 can be selected according to the user's writing habits, so that the user can write with the force necessary to oscillate the oscillating part 22 of the housing 20. Specifically, the larger the elastic modulus of the elastic member 30, the more difficult it becomes for the oscillating part 22 to press against the elastic member 30, and the greater the force required by the user to oscillate the oscillating part 22. On the other hand, the smaller the elastic modulus of the elastic member 30, the easier it is for the oscillating part 22 to push the elastic member 30, so that the user can oscillate the oscillating part 22 with little force. In other embodiments, the present invention may not include the elastic member 30, but only the annular curved surface 221, as long as the annular curved surface 221 of the oscillating part 22 can contact the inner annular inclined surface 211 of the housing part 21.

[0013] As shown in Figures 4 and 5, the stabilizing member 40 is provided between the oscillating part 22 and the elastic member 30, is annular in shape, and surrounds the pen tip 10. Specifically, the stabilizing member 40 is in close contact with the elastic member 30, and when the oscillating part 22 oscillates relative to the central axis of the housing part 21, the stabilizing member 40 is pressed by the elastic member 30 and presses the oscillating part 22 in the direction of the central axis of the housing part 21. However, since the stabilizing member 40 has no elasticity, it tries to return the oscillating part 22 to the central axis of the housing part 21. In other words, the stabilizing member 40 stabilizes the oscillating part 22 so that the problem of the oscillating part 22 oscillating excessively due to one side of the elastic member 30 being pressed occurs.

[0014] As shown in Figure 2, the adjustment unit 50 is provided inside the housing 20 and comprises an adjustment tube 51 and a rotating member 52. The adjustment tube 51 is fitted onto the pen nib 10 and screw-connected to the inner wall surface of the housing 20. One end of the adjustment tube 51 abuts against the elastic member 30, and the rotating member 52 engages with the other end of the adjustment tube 51 opposite to the elastic member 30. Furthermore, the adjustment tube 51 is movable in the axial direction of the pen nib 10 as the rotating member 52 rotates. This allows the user to adjust the force required to swing the oscillating part 22 by adjusting the degree of compression of the elastic member 30 when rotating the rotating member 52 to move the adjustment tube 51 in the axial direction of the pen nib 10. In another embodiment, the adjustment unit 50 may not include the rotating member 52, and only the adjustment tube 51 may be rotated. In this case, since the adjustment tube 51 is screw-connected to the inner wall surface of the housing 20, the adjustment tube 51 rotates, causing the pen tip 10 to move in the axial direction, thus allowing the degree of compression of the elastic member 30 to be adjusted. In another embodiment, the present invention may not include the adjustment unit 50, and the user can adjust the force required to swing the oscillating part 22 of the housing 20 when writing simply by selecting the elastic member 30 with various elastic moduli.

[0015] As shown in FIG. 6, the technical features of Embodiment 2 of the present invention are similar to those of Embodiment 1, but the pen with a swingable pen tip does not include the adjustment unit 50, includes a lock unit 60, and the housing 21 further includes at least one accommodation groove 213, which is different.

[0016] As shown in FIGS. 6 to 8, the lock unit 60 is connected to the housing 21 and includes a lock member 61 and an adjustment member 62. The lock member 61 is externally fitted to the pen core 10 and can selectively press the swing portion 22. Specifically described, in Embodiment 2, the lock member 61 abuts against the stabilizing member 40 and presses the stabilizing member 40 to push the swing portion 22. In other embodiments, the lock member 61 may directly abut against the swing portion 22. Further, the lock member 61 includes at least one lock protrusion 611, and the at least one lock protrusion 611 is disposed at one end of the lock member 61 that is far from the swing portion 22.

[0017] One end of the adjustment member 62 is rotatably Insertion connected to the housing 21. Since the lock member 61 is connected to the adjustment member 62, the lock member 61 moves in the axial direction of the pen core 10 as the adjustment member 62 rotates, and can press the swing portion 22 parallel to the central axis direction of the housing 21. In other words, the adjustment member 62 pushes and moves the lock member 61 in the axial direction of the pen core 10, and makes the lock member 61 press the swing portion 22, so as to return from the swing state to the correct position.

[0018] The adjustment member 62 includes at least one adjustment groove 621. The at least one adjustment groove is provided at one end of the adjustment member 62 close to the housing 21 and opens toward the housing 21. Each adjustment groove 621 includes a first recess 6211 and a second recess 6212. The first recess 6211 and the second recess 6212 are respectively provided on both sides of the adjustment groove and communicate with each other. The depth of the second recess 6212 is deeper than that of the first recess 6211 Yes. Further, each of the lock projections 611 is movably provided in one of the adjustment grooves 621 and is selectively disposed in the first recess 6211 or the second recess 6212. Incidentally, the number and positions of the accommodation grooves 213 correspond to the lock projections 611, and each of the lock projections 611 can be engaged with one of the accommodation grooves 213.

[0019] As shown in FIGS. 7 and 8, when the user wants to fix the pen core 10 parallel to the central axis of the housing portion 21, that is, when the user wants to lock the lock unit 60, by rotating the adjustment member 62, the lock projection 611 is engaged with the first recess 6211 of the adjustment groove 621. At this time, due to the limitation by the depth of the first recess 6211, the lock member 61 abuts against the stabilizing member 40, presses the swing portion 22 parallel to the central axis direction of the housing portion 21, and further locks the pen core 10 parallel to the central axis of the housing portion 21. As shown in FIGS. 9 and 10, when the user wants to make the pen core 10 swingable, that is, when the user wants to unlock the lock unit 60, by rotating the adjustment member 62, the lock projection 611 is engaged with the second recess 6212 of the adjustment groove 621. At this time, since the second recess 6212 is deeper than the first recess 6211, the lock member 61 separates from the stabilizing member 40, and the state in which the swing portion 22 is maintained parallel to the central axis of the housing portion 21 due to the pressing of the stabilizing member 40 is eliminated, and the swing portion 22 is returned to a swingable state.

[0020] When the user uses the present invention for writing, the user holds the housing portion 21 of the housing 20, makes the pen core portion 12 of the pen core 10 perpendicular to the paper surface, and when the pen tip portion 11 touches the paper surface, by controlling the housing portion 21 of the housing 20, the swing portion 22 can be swung with respect to the housing portion 21 via the annular curved surface 221. Therefore, the user can expand the operating range of the pen tip without moving the forearm, thereby expanding the range where writing is possible.

[0021] In this invention, when the user writes, the oscillating part 22 oscillates relative to the central axis of the housing part 21, thereby elastically shifting the pen tip part 11 away from the central axis of the housing part 20 by a certain width. As a result, the contact between the pen tip part and the paper surface becomes softer, allowing the user to write more smoothly and comfortably. Furthermore, due to the relative relationship between the oscillating part 22 and the housing part 21, the usable space of the pen tip part 11 can be expanded without moving the forearm, allowing for smoother writing when writing large characters, resulting in a more beautiful finish. [Explanation of Symbols]

[0022] 10 Pen nibs 11 Pen tip 12 Pen tip 20 cabinets 21 Storage Unit 21A Storage area 211 Inner annular inclined surface 212 Outer annular slope 213 Retaining groove 22 Oscillating part 221 Ring Surface 30 Elastic members 40 Stabilizing members 50 Adjustment Units 51 Adjustment tube 52 Rotating member 60 Lock Unit 61 Locking member 611 Lock protrusion 62 Adjustment Member 621 Adjustment groove 6211 First recess 6212 Second recess

Claims

1. Equipped with a pen tip and casing, The aforementioned pen nib comprises a flexible pen tip portion and a pen nib portion connected to the pen tip portion. The aforementioned pen tip penetrates the aforementioned housing, and the housing comprises a housing portion and a swinging portion. The pen tip portion of the pen nib is housed in the housing portion, and the pen tip portion protrudes from one end of the housing portion. The pivoting part is inserted into the housing, and the insertion position is at the end of the pen tip that penetrates the housing, and furthermore, the pivoting part abuts against the inner wall surface of the housing, the pen tip is inserted into the pivoting part, and the pivoting part is pivotable with respect to the central axis of the housing. The aforementioned oscillating part has an annular curved surface, A pen with a pivoting tip, characterized in that the annular curved surface is in close contact with the inner wall surface of the housing, and the pivoting part is pivotable relative to the housing via the annular curved surface.

2. The aforementioned housing section is provided with an inner annular inclined surface, The inner annular inclined surface is provided at one end of the housing portion near the pen tip portion and is located on the inner surface of the housing portion, the diameter of the inner annular inclined surface gradually increases as it moves away from the pen tip portion, and the annular curved surface is capable of contacting the inner annular inclined surface. The pen, whose tip is oscillating, is equipped with an elastic member. The pen tip is swingable according to claim 1, characterized in that the elastic member is fitted onto the pen core and presses against the annular curved surface of the swinging part, causing it to come into contact with the inner annular inclined surface of the housing part.

3. The aforementioned housing section is provided with an outer annular inclined surface, The pen with a pivotable tip according to claim 1 or 2, characterized in that the outer annular inclined surface is provided at one end of the housing portion near the pen tip portion and is located on the inner surface of the housing portion, the diameter of the outer annular inclined surface gradually decreases as it moves away from the pen tip portion, and when the oscillating portion oscillates with respect to the central axis of the housing portion, the oscillating portion comes into contact with the outer annular inclined surface.

4. The pen with a pivotable tip according to claim 2, further comprising a stabilizing member, the stabilizing member being provided between the oscillating portion and the elastic member, forming an annular shape, surrounding the pen tip, and characterized in that when the oscillating portion oscillates with respect to the central axis of the housing portion, the oscillating portion presses the stabilizing member toward the elastic member.

5. The device further comprises an adjustment unit, which is located within the housing and includes an adjustment tube. The pen with a pivotable tip, as described in claim 2 or 4, is characterized in that the adjustment tube is fitted onto the pen core and screw-connected to the inner wall surface of the housing, and one end of the adjustment tube abuts against the elastic member.

6. The adjustment unit includes a rotating member, The pen with a pivotable tip according to claim 5, characterized in that the rotating member is engaged with the other end of the adjustment tube opposite to the elastic member, and the adjustment tube is further movable in the axial direction of the pen core as the rotating member rotates.

7. The system further comprises a locking unit, which is connected to the housing and includes a locking member and an adjustment member. The locking member is fitted onto the pen tip and can selectively press the oscillating portion. The pen with a pivotable tip according to claim 1 or 2, characterized in that one end of the adjustment member is rotatably inserted into the housing, and the locking member is connected to the adjustment member, and the locking member moves in the axial direction of the pen tip as the adjustment member rotates, thereby pushing the pivoting part parallel to the central axis direction of the housing.

8. The adjustment member comprises at least one adjustment groove, The at least one adjustment groove is provided at one end of the adjustment member closest to the housing portion and opens toward the housing portion, and each of the at least one adjustment grooves comprises a first recess and a second recess. The first recess and the second recess are provided on both sides of the adjustment groove and are in communication with each other, and the depth of the second recess is greater than that of the first recess. The locking member comprises at least one locking projection. Each of the at least one locking projections is movably provided in one of the at least one adjustment grooves and is selectively positioned in the first recess or the second recess. The aforementioned housing section is provided with at least one housing groove, The pen tip is swingable according to claim 7, characterized in that the number and position of the at least one receiving grooves correspond to the at least one locking projection, and each of the at least one locking projections is engageable with one of the at least one receiving grooves.

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