A writing instrument

Abstract

The utility model discloses a writing pen, include: the lead assembly, the pen holder, at least including first pen holder and second pen holder, this first pen holder and second pen holder coaxial butt joint form the movable track, and this movable track extends the circumference of pen holder a circle, and has the opening to the pen holder outer wall, the ball, movably set up in movable track, and part from movable track's opening stretches out. The utility model discloses by first pen holder and second pen holder axial butt joint form movable track, and at the same time limit ball in movable track activity, and the assembly structure is relatively simplified, and the convenient dismounting, the ball can revolve around the central axis of writing pen in movable track, also can ball revolves around the line body or self central line in movable track, and the activity range and activity angle of ball are bigger, and the hand feeling of user playing ball is better, and the use interestingness of writing pen is higher.

Description

Technical Field

[0001] This utility model belongs to the field of writing pen technology, and in particular relates to a writing pen. Background Technology

[0002] Traditional writing pens have relatively limited functions and lack fun to use. However, students and working professionals are under increasing pressure from studying and working, and they need some entertainment and play outside of their studies and work to relax and better focus on their studies and work.

[0003] Chinese patent CN110733276A discloses a "pen with massage function," which has several spherical grooves arranged in the circumferential direction on the upper part of the pen barrel, and each spherical groove contains a rolling ball. The ball moves within a single spherical groove, resulting in a small range of motion and low entertainment value. Furthermore, the shape and size of the spherical groove must closely match the ball, making the manufacturing process difficult as the ball must be precisely fitted into the spherical groove and prevent it from detaching. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a writing pen with a ball bearing set in the movable track. The user can move the ball bearing freely within the movable track, which makes it more interesting to use.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a writing pen, comprising: Pen refill assembly; The pen barrel includes at least a first pen barrel and a second pen barrel, which are coaxially joined to form a movable track that extends around the circumference of the pen barrel and has an opening toward the outer wall of the pen barrel. The ball bearing is movably disposed within the movable track and extends partially from the opening of the movable track.

[0006] Furthermore, the vertical center line of the ball is located radially inside the opening of the movable track.

[0007] Furthermore, the movable track extends radially along the pen barrel; or, the movable track extends obliquely in a direction that forms an angle with the radial direction of the pen barrel.

[0008] Furthermore, the angle between the movable track and the radial direction of the pen barrel is 0-45°.

[0009] Furthermore, the number of balls is multiple, and they are closely arranged within the moving track.

[0010] Furthermore, the balls are threaded through a wire to connect them into a string.

[0011] Furthermore, the movable track includes a first track formed on the first pen barrel and a second track formed on the second pen barrel, at least a portion of the first track and the second track being an arc-shaped track that can conform to the outer wall of the ball; the central angle of the portion of the ball covered by the movable track is 190-280°.

[0012] Furthermore, the movable track includes a first track formed on the first pen barrel and a second track formed on the second pen barrel. The distance between the first track and the second track on the opening side is smaller than the distance between them on the side away from the opening, so as to form a constricted movable track.

[0013] Furthermore, the end of the first pen barrel is formed with a sleeve portion that can extend into the second pen barrel.

[0014] Furthermore, the outer diameter of the pen barrel is gradually increased from the bottom of the core outlet upwards, and the movable track is located near the top of the pen barrel.

[0015] Furthermore, a circumferential anti-rotation structure is provided between the first pen barrel and the second pen barrel, and an axial locking structure is provided between the two.

[0016] The beneficial effects of this utility model are: 1) The first pen barrel and the second pen barrel are axially joined to form a movable track, which simultaneously restricts the movement of the ball bearing within the movable track. The assembly structure is relatively simplified and easy to assemble and disassemble; 2) The ball bearing can revolve around the central axis of the writing pen within the movable track, or it can rotate around the line or its own center line within the movable track. The range and angle of movement of the ball bearing are large, providing a better feel for the user when playing with the ball bearing and increasing the fun of using the writing pen; 3) The movable track is inclined relative to the pen barrel, extending the length of the movable track so that it can accommodate more ball bearings, or in other words, it can accommodate larger ball bearings. This provides a better feel for the user when manipulating the ball bearings and increases the fun of using the writing pen. 4) The ball bearings are densely packed within the movable track, forming a string of beads, similar to a necklace on the pen barrel, increasing the pen's aesthetic appeal. Furthermore, when the user moves a few of the ball bearings, the entire string moves simultaneously, resulting in a superior user experience. 5) The movable track is formed by the upper and lower cooperation of the first and second tracks, with an arc-shaped inner wall. This effectively limits the movement of the ball bearings while making their movement smoother. The larger surface area of ​​the ball bearings exposed outside the pen barrel also enhances the user's tactile experience. 6) The pen barrel is thicker at the top and thinner at the bottom, and the movable track is located at the upper part of the barrel, further increasing the circumferential length of the movable track and the number of ball bearings it can accommodate. This also makes it easier for the user to hold the lower part for writing. Attached Figure Description

[0017] Figure 1 A perspective view of the writing pen provided by this utility model.

[0018] Figure 2Partial exploded view of the writing pen provided by this utility model Figure 1 .

[0019] Figure 3 Partial exploded view of the writing pen provided by this utility model Figure 2 .

[0020] Figure 4 A schematic diagram showing the first pen barrel and ball bearing of this utility model in action.

[0021] Figure 5 Cross-sectional view of the writing pen provided by this utility model Figure 1 .

[0022] Figure 6 for Figure 5 Enlarged view of the structure at point A in the image.

[0023] Figure 7 for Figure 6 A diagram showing the removal of the ball bearings.

[0024] Figure 8 Cross-sectional view of the writing pen provided by this utility model Figure 2 .

[0025] Figure 9 for Figure 8 Enlarged view of the structure at point B in the image.

[0026] Figure 10 for Figure 8 Enlarged view of the structure at point C.

[0027] Figure 11 A partial perspective view of the writing pen provided by this utility model.

[0028] Figure 12 for Figure 11 Enlarged view of the structure at point D in the image.

[0029] Figure 13 A perspective view of another structure of the writing pen provided by this utility model.

[0030] Figure 14 A cross-sectional view of another structure of the writing pen provided by this utility model.

[0031] Figure 15 for Figure 14 Enlarged view of the structure at point E in the image.

[0032] Figure 16 for Figure 15 A diagram showing the removal of the ball bearings.

[0033] Figure 17 This is a partial schematic diagram of another structure of the writing pen provided by this utility model.

[0034] Figure 18 A perspective view of another structure of the writing pen provided by this utility model.

[0035] Figure 19 A cross-sectional view of another structure of the writing pen provided by this utility model.

[0036] Figure 20 for Figure 19 Enlarged view of the structure at point F in the image.

[0037] 1-Pen tip assembly, 2-Pen barrel, 21-First pen barrel, 211-Sleeve part, 22-Second pen barrel, 23-Pen tip outlet, 3-Moving track, 31-First track, 32-Second track, 33-Moving track opening, 4-Ball bearing, 51-Anti-rotation protrusion, 52-Anti-rotation groove, 53-Locking protrusion, 54-Locking groove, 6-Thread. Detailed Implementation

[0038] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort should fall within the scope of protection of the present invention.

[0039] like Figure 1 As shown, a writing pen includes a refill assembly 1, a pen barrel 2, and a ball bearing 4. The refill assembly 1 can be any structure found in existing products and will not be described in detail. The pen barrel 2 includes at least a first pen barrel 21 and a second pen barrel 22. The first pen barrel 21 and the second pen barrel 22 are coaxially connected to form a movable track 3. The movable track 3 extends around the circumference of the pen barrel 2 and has an opening 33 facing the outer wall of the pen barrel 2. The ball bearing 4 is movably disposed within the movable track 3, and a portion of the ball bearing 4 protrudes from the opening 33 of the movable track 3, that is, a portion of the ball bearing 4 protrudes from the outer wall of the pen barrel 2. The vertical centerline of the ball bearing 4 is located radially inside the opening 33 of the movable track 3, thus the ball bearing 4 is not easily dislodged from the movable track 3.

[0040] The above does not limit the number of balls 4. The number of balls 4 can be one, two, or more. That is, the balls 4 do not have to fill the entire movable track 3, or they can be closely arranged within the movable track 3. In this embodiment, the balls 4 are closely arranged within the movable track 3, that is, the number of balls 4 must be sufficient to occupy the entire movable track 3.

[0041] The above does not specify whether the balls 4 are independent or connected together. In this embodiment, the balls 4 are threaded through a wire (not shown in the figure) to connect them into a string, which facilitates the assembly of the balls 4.

[0042] like Figures 1-12 As shown, the movable track 3 extends obliquely along a direction that forms an angle with the radial direction of the pen barrel 2, and the angle between the movable track 3 and the radial direction of the pen barrel 3 is 0-45°. Figure 6 As shown, S2 is located in the radial direction of the pen barrel 2, and S1 is located in the inclined extension direction of the movable track 3. At this time, the angle α between S1 and S2 is 20-45°, preferably 25-40°, and more preferably 30-35°. This increases the overall length of the movable track 3, allowing for a greater number of balls 4 to be accommodated. Furthermore, due to the inclined design, it better suits the user's posture of holding the pen and using their fingers to flick the balls 4 diagonally from bottom to top. The balls 4 can move more within the movable track 3, providing a better tactile experience for the user. Additionally, the inclined design increases the length of the movable track 3, thereby increasing the outer diameter of the balls 4, making them more noticeable and providing a better tactile experience for the user, thus enhancing the user's enjoyment.

[0043] like Figure 7 As shown, the movable track 3 includes a first track 31 formed on the first pen barrel 21 and a second track 32 formed on the second pen barrel 22. At least a portion of the first track 31 and the second track 32 are arc-shaped tracks that can conform to the outer wall of the ball bearing 4. In other words, the inner wall of the movable track 3 is mostly an arc-shaped surface that conforms to the outer wall of the ball bearing 4, thus making the movement of the ball bearing 4 within the movable track 3 smoother. Figure 9 As shown, the central angle of the portion of the ball bearing 4 covered by the movable track 3 is 190-285°, that is, the β angle in the figure is 190-280°. Preferably, the β angle is 195-240°, and more preferably, the β angle is 210-220°. At this time, while ensuring that the ball bearing 4 will not easily detach from the movable track 3, the volume of the ball bearing 4 exposed outside the movable track 3 is larger, and the user's operating feel is better.

[0044] like Figures 2-4 As shown, the lower end of the first pen barrel 21 forms a sleeve portion 211 that can extend into the second pen barrel 22. During assembly, the balls 4, which are strung together by the thread, can first be fitted onto the outer periphery of the sleeve portion 211, and then the sleeve portion 211 is axially connected with the second pen barrel 22. Of course, since the movable track 3 is formed by splicing the first track 31 and the second track 32, when the balls 4 are not strung together, a smaller number of balls 4 can be placed directly on the second track 32. At this time, since the second track 32 is an arc track, it can stably accommodate the balls 4. Then, by pressing the balls 4 down from top to bottom using the first track 31 on the first pen barrel 21, the balls 4 can be limited.

[0045] like Figure 2 As shown, in order to enable the first track 31 of the first pen barrel 21 and the second track 32 of the second pen barrel 22 to be aligned vertically to form the movable track 3, a circumferential anti-rotation structure is provided between the first pen barrel 21 and the second pen barrel 22. Specifically, an anti-rotation protrusion 51 is provided on the outer wall of the sleeve portion 211 of the first pen barrel 21, and an anti-rotation groove 52 is formed on the inner wall of the second pen barrel 22 for the anti-rotation protrusion 51 to be inserted. Thus, during assembly, the anti-rotation protrusion 51 is aligned with the anti-rotation groove 52, and the installation direction can be quickly determined.

[0046] like Figures 10-12 As shown, to prevent the ball bearing 4 from being jammed by the first track 31 and the second track 32 due to excessive downward pressure of the first pen barrel 21, an axial locking mechanism is also provided between the first pen barrel 21 and the second pen barrel 22. Specifically, a locking protrusion 53 is provided on the outer wall of the sleeve portion 211 of the first pen barrel 21, and a locking groove 54 is formed on the inner wall of the second pen barrel 22. When the locking protrusion 53 falls into the locking groove 54 to form a tight fit, the assembly of the first pen barrel 21 and the second pen barrel 22 is completed. At this time, the relative position of the first track 31 and the second track 32 is determined, the shape of the movable track 3 is determined, the ball bearing 4 will not be jammed, and the ball bearing 4 can move freely in the movable track 3.

[0047] like Figure 1 , Figure 5 As shown, the outer diameter of the pen barrel 2 gradually increases along its entire length, specifically from the lead outlet 23 at the bottom upwards. The movable track 3 is located near the top of the pen barrel 2, meaning it is situated in the thicker part of the barrel 2. This correspondingly extends the overall length of the movable track 3, thereby increasing the number of ball bearings 4 that the movable track 3 can accommodate. In other words, even with the increased outer diameter of the ball bearings 4, the longer movable track 3 can still accommodate a certain number of large ball bearings 4, resulting in a better feel for the user and greater enjoyment in use. At the same time, the outer diameter of the lower part of the pen barrel 2 is not excessively large, making it easy for the user to hold the pen barrel 2 for writing.

[0048] When using the pen, hold the lower half of the pen and use your thumb to move the ball bearing 4, which is exposed outside the opening 33 of the moving track 3. Multiple balls bearing 4 revolve around the central axis of the pen within the moving track 3. At the same time, a single ball bearing 4 can also rotate around the thread within the moving track 3. The ball bearing 4 has a large range of motion and angle of motion, which makes the user feel better and the pen more fun to use.

[0049] like Figures 13-17As shown, the movable track 3 can also extend radially along the pen barrel 2, i.e., the aforementioned angle α is 0. Similarly, the movable track 3 includes a first track 31 formed in the first pen barrel 21 and a second track 32 formed in the second pen barrel 22. In this case, the first track 31 is an inclined surface from the outside in and from the bottom up, and the second track 32 is an inclined surface from the outside in and from the top down. Thus, the first track 31 and the second track 32 cooperate to form a constricted movable track 3, and the vertical distance on the side of its opening 33 is smaller than the vertical distance on the side away from the opening 33. The ball bearing 4 is engaged between the first track 31 and the second track 32. Other structures are the same as those of the writing pen with the inclined movable track 3 described above, and will not be repeated.

[0050] like Figures 18-20 As shown, the vertical centerline of the ball 4 can also be located radially outside the opening 33 of the movable track 3. In this case, a thread is threaded through the balls 4 to connect them into a series. When the thread tightly connects all the balls 4, even if the opening 33 of the movable track 3 is larger than the diameter of the balls 4, the balls 4 will not easily detach from the movable track 3. At this time, the central angle of the part of the ball 4 covered by the movable track 3 is 160-175°, that is, the β angle in the figure is 160-175°. Preferably, the β angle is 162-170°.

[0051] The above specific embodiments are used to explain and illustrate the present utility model, and are not intended to limit the present utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims shall fall within the protection scope of the present utility model.

Claims

1. A writing pen, characterized in that, include: Pen refill assembly (1); The pen barrel (2) includes at least a first pen barrel (21) and a second pen barrel (22), which are coaxially connected to form a movable track (3), which extends around the pen barrel (2) and has an opening (33) facing the outer wall of the pen barrel (2). The ball (4) is movably disposed within the movable track (3) and extends partially from the opening (33) of the movable track (3).

2. The writing pen according to claim 1, characterized in that: The vertical centerline of the ball (4) is located radially inside the opening (33) of the movable track (3).

3. The writing pen according to claim 1, characterized in that: The movable track (3) extends radially along the pen barrel (2); or, the movable track (3) extends obliquely in a direction that forms an angle with the radial direction of the pen barrel (2).

4. The writing pen according to claim 3, characterized in that: The radial angle between the active track (3) and the pen barrel (2) is 0-45°.

5. The writing pen according to claim 1, characterized in that: The number of the balls (4) is multiple, and they are closely arranged in the movable track (3); the balls (4) are threaded through to connect them into a string.

6. The writing pen according to claim 1 or 3, characterized in that: The active track (3) includes a first track (31) formed on the first pen barrel (21) and a second track (32) formed on the second pen barrel (22). At least a portion of the first track (31) and the second track (32) are arc-shaped tracks that can fit against the outer wall of the ball (4). The central angle of the portion of the ball (4) covered by the active track (3) is 190-280°.

7. The writing pen according to claim 1 or 3, characterized in that: The active track (3) includes a first track (31) formed on the first pen barrel (21) and a second track (32) formed on the second pen barrel (22). The distance between the first track (31) and the second track (32) on the side of the opening (33) is smaller than the distance between them on the side away from the opening (33), so as to form a narrowed active track (3).

8. The writing pen according to claim 1, characterized in that: The end of the first pen barrel (21) forms a sleeve portion (211) that can extend into the second pen barrel (22).

9. The writing pen according to claim 1, characterized in that: The outer diameter of the pen barrel (2) is gradually increased from the core outlet (23) at the bottom upwards, and the movable track (3) is set near the top of the pen barrel (2).

10. The writing pen according to claim 1, characterized in that: A circumferential anti-rotation structure is provided between the first pen barrel (21) and the second pen barrel (22), and an axial locking structure is provided between the two.

Images