Adjustable centre of gravity fountain pen

Abstract

To provide a fountain pen with an adjustable center of gravity, which can meet the individual needs of a user by adjusting the position of a weight ring and changing the center of gravity and the overall length of the body of the fountain pen. [Solution] A fountain pen 100 with an adjustable center of gravity includes a body 10, a weight ring 50, and a neck 60. The body is made up of a front body 20, a middle body 30, and a rear body 40, the middle body being hollow and the rear body being a cylinder with an open front end and a closed rear end, a joint 21 screwed onto the front end of the rear body, and the middle body being fitted into the joint and fixed between the front body and the rear body. The weight ring is movably fitted into the joint, and is selectively positioned between the joint and the middle body, or between the middle body and the rear body. The neck is positioned at the front end of the front body.

Description

[Technical field]

[0001] The present invention relates to the technical field of writing instruments, and in particular to a fountain pen with an adjustable center of gravity. [Background technology]

[0002] Fountain pens are popular as writing implements for hard pens, and the strength of the pressure applied to the pen affects how the characters look, and different ink combinations can produce a variety of styles. Various materials are used for the barrel of a fountain pen, with acrylic, copper, and iron being the most common, and the weight of the fountain pen varies depending on the material. The weight of the barrel also has an effect, but the key to how easy it is to hold a fountain pen is whether the center of gravity is aligned with the grip, and it is best to choose one with a center of gravity that is not misaligned and that has a moderate weight. Such a pen will fit comfortably in your hand when you hold it, and you will not get tired even if you use it for a long time.

[0003] However, most of the fountain pens sold on the market do not allow the user to replace the barrel or change the center of gravity of the barrel when holding the fountain pen, so that the user cannot comfortably share the fountain pen with others, and if the length and center of gravity of the barrel do not suit the user, the user has to endure it or stop using it. In the known art, for example, the fountain pen disclosed in Patent Document 1 adopts a method of connecting the front first barrel part, the middle second barrel part, and the rear neck part at the front and rear, and all parts must be assembled to each other, which is inconvenient to use. As another example, the writing brush with adjustable center of gravity disclosed in Patent Document 2 uses a method of stacking weight shafts one by one, but the center of gravity cannot be adjusted quickly.

[0004] Therefore, in order to overcome the shortcomings of the prior art, it is necessary to provide a fountain pen with an adjustable center of gravity, which allows the center of gravity of the fountain pen barrel to be easily changed and the overall length to be easily adjusted. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Taiwan Utility Model Registration Publication No. M548081 [Patent Document 2] Taiwan Utility Model Registration Publication No. M557202 Summary of the Invention [Problem to be solved by the invention]

[0006] Taking the above problems into consideration, the object of this invention is to provide a fountain pen with an adjustable center of gravity that can individually meet the different needs of users regarding the center of gravity and overall length of the fountain pen barrel by screwing together the joint at the rear end of the front barrel and the rear barrel, and adding weight rings at the front and rear positions of the middle part of the barrel, thereby changing the center of gravity of the barrel and adjusting the overall length. [Means for solving the problem]

[0007] In order to achieve the above object, the fountain pen with adjustable center of gravity of the present invention includes a body, at least one weight ring, and a neck. The body is composed of a front body, a middle body, and a rear body. The rear end of the front body has a joint, the middle body is a hollow structure with a front end and a rear end penetrating through, the rear body is a cylinder with an open front end and a closed rear end, the joint is screwed to the front end of the rear body, and the middle body is fitted to the joint and fixed between the front body and the rear body. The weight ring is movably fitted to the joint, and is selectively arranged between the joint and the middle body, or between the middle body and the rear body. The neck is arranged at the front end of the front body.

[0008] In an embodiment of the present invention, a male threaded portion is provided on the outer wall of the aforementioned joint, and a female threaded portion is provided on the inner wall of the cylindrical body, and the joint is screwed with the male threaded portion corresponding to the female threaded portion at the rear of the body.

[0009] In an embodiment of the present invention, the aforementioned center-of-gravity adjustable fountain pen further includes a cap, which is movably fitted to the neck.

[0010] In an embodiment of the present invention, the number of the aforementioned weight rings is plural.

[0011] In an embodiment of the present invention, all of the aforementioned weight rings are disposed between the joint portion and the mid-torso portion, or between the mid-torso portion and the rear-torso portion.

[0012] In an embodiment of the present invention, some of the weight rings are disposed between the joint portion and the mid-torso portion, and another part is disposed between the mid-torso portion and the rear-torso portion.

[0013] In an embodiment of the present invention, the aforementioned weight rings have the same length.

[0014] In an embodiment of the present invention, the aforementioned weight rings have different lengths. Effect of the Invention

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] The adjustable center of gravity fountain pen of the present invention can change the overall length of the barrel and the center of gravity by adjusting the number and position of the weight rings, so as to meet the individual needs of different users.

[0017] The adjustable center of gravity fountain pen of this invention allows the user to freely combine the appearance of the fountain pen by adjusting the number and position of the weight rings, replacing the middle and rear sections of the barrel, and combining parts of different shapes, allowing the user to provide a wide variety of appearances for the fountain pen.

[0018] The adjustable centre of gravity fountain pen of this invention takes advantage of the screw fastening between the front and rear barrels and the hollow structure of the middle section of the barrel; the middle section is fixed by assembling the front and rear barrels together, and a weight ring is then combined to change the overall length and centre of gravity of the barrel. This eliminates the need to assemble all the parts together, and allows the appearance of the barrel to be adjusted and the centre of gravity to be fine-tuned quickly, making it extremely convenient to use.

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments will be described in detail with reference to the accompanying drawings, so that the objectives, technical contents, features and effects achieved by the present invention can be more easily understood. [Brief description of the drawings]

[0020] [Figure 1] FIG. 2 is an exploded view of a fountain pen with adjustable center of gravity provided in an embodiment of the present invention. [Diagram 2] FIG. 2 is a diagram showing the assembled operation of the center of gravity adjustable fountain pen provided in an embodiment of the present invention. [Diagram 3] FIG. 2 is a diagram showing a first combination mode of a fountain pen with adjustable center of gravity provided in an embodiment of the present invention. [Figure 4] FIG. 2 is a diagram showing a second combination embodiment of a fountain pen with adjustable center of gravity provided in an embodiment of the present invention. [Diagram 5] FIG. 2 shows a third combination embodiment of a fountain pen with adjustable center of gravity provided in an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0021] The embodiments of the present invention will be further described below with reference to the relevant drawings. In the drawings and the specification, the same or similar components are designated by the same reference numerals whenever possible. In the drawings, shapes and thicknesses may be exaggerated for simplicity and convenience. Elements not specifically shown in the drawings or described in the specification may be interpreted as being in a form known to those skilled in the art. Those skilled in the art may make various changes and modifications based on the contents of the present invention.

[0022] The technical means employed in the embodiments of the present invention are merely given as examples to more clearly explain the technical content of the present invention, and do not limit the scope of protection of the present invention unless otherwise specified. In the specification, many specific and detailed descriptions are provided to enable the reader to more fully understand the present invention. However, the present invention can be implemented even if some or all of the specific details are omitted. In addition, detailed descriptions of well-known procedures and components are omitted so as not to unnecessarily limit the present invention. If there is no contradiction, the embodiments of the present invention and the features in the embodiments can be freely combined. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meaning as commonly understood by a person of ordinary skill in the art to which the present invention belongs.

[0023] Please refer to Figures 1 and 2. Figure 1 is an exploded view of the fountain pen with adjustable center of gravity provided in the embodiment of the present invention, and Figure 2 is a diagram showing the assembled operation of the fountain pen with adjustable center of gravity provided in the embodiment of the present invention. The fountain pen with adjustable center of gravity 100 of this embodiment is mainly composed of a barrel 10, a weight ring 50, a neck 60 and a cap 70.

[0024] The torso section 10 is composed of a front torso section 20, a middle torso section 30, and a rear torso section 40. The rear end of the front torso section 20 has a joint section 21, and the outer wall of the joint section 21 is provided with a male thread section 22. The middle torso section 30 has a hollow structure with the front and rear ends penetrated, and the inner diameter of the hollow structure is slightly larger than the outer diameter of the joint section 21 of the front torso section 20, so that the middle torso section 30 can fit into the outside of the joint section 21 of the front torso section 20. The rear torso section 40 is a cylinder with an open front end and a closed rear end, and the inner diameter of the cylinder is slightly larger than the outer diameter of the joint 21 of the front torso section 20. The inner wall of the cylinder is provided with a female threaded section (not shown in the figure) that fits the male threaded section 22, thereby allowing the joint 21 to be screwed into the female threaded section of the rear torso section 40. The middle torso section 30 is located between the front torso section 20 and the rear torso section 40, and is fixed by being sandwiched between the front torso section 20 and the rear torso section 40.

[0025] The inner diameter of the weight ring 50 is also slightly larger than the outer diameter of the joint 21 of the torso front section 20, and the weight ring 50 can be movably fitted into the joint 21 and selectively arranged between the joint 21 of the torso front section 20 and the torso intermediate section 30, or between the torso intermediate section 30 and the torso rear section 40. The number of weight rings 50 of the present invention is at least one, and preferably multiple. In practical applications, all weight rings 50 or a part of the weight rings 50 can be installed. In this embodiment, the number of weight rings 50 is three. In practical applications, when the number of weight rings 50 is multiple, all of the multiple weight rings 50 can be arranged between the joint 21 of the torso front section 20 and the torso intermediate section 30, or between the torso intermediate section 30 and the torso rear section 40. Alternatively, some of the weight rings 50 may be disposed between the joint 21 of the front torso section 20 and the middle torso section 30, and another part may be disposed between the middle torso section 30 and the rear torso section 40. In addition, although the three weight rings 50 in this embodiment all have different lengths, in actual applications, the weight rings 50 may have the same length or different lengths. Furthermore, the weight rings 50 may be made of the same material or different materials. In actual applications, the material of the weight rings 50 may include, but is not limited to, resin or lightweight metal. The weight rings 50 may have the same weight or different weights.

[0026] The neck 60 includes a pen tip 61 and a connecting portion 62, the pen tip 61 being disposed at a front end of the connecting portion 62, and the connecting portion 62 being disposed at a front end of the front barrel portion 20. In addition, a cap 70 is movably fitted to the neck 60. Further details regarding the neck 60 and the cap 70 are not the technical focus of the present application and are known to those skilled in the art of the present invention, so they will not be described again here.

[0027] In the embodiment of the present invention, the selection of the size, material and weight of the intermediate torso section 30 is not limited, and in actual application, it can be designed according to the needs of the user, and can be freely selected and combined with other kits of different shapes by the user.

[0028] According to an embodiment of the present invention, the fountain pen 100 with adjustable center of gravity is fastened by screwing the front body section 20 and the rear body section 40 together, and the middle body section 30 has a hollow structure. The middle body section 30 is fixed by assembling the front body section 20 and the rear body section 40 together, and weight rings 50 can be added to the front and rear of the middle body section 30 to change the center of gravity of the body 10 and adjust its overall length, thereby meeting the individual needs of users regarding the center of gravity and overall length of the body 10.

[0029] Next, please refer to Fig. 3, which shows a first combination mode of the fountain pen 100 with adjustable center of gravity provided in the embodiment of the present invention. In order to simplify the contents of the illustration, the cap is omitted in the figure. The first combination mode of this embodiment uses one long weight ring 51, and the weight ring 51 is disposed between the front part 20 and the middle part 30.

[0030] Next, please refer to Fig. 4, which shows a second combination mode of the fountain pen 100 with adjustable center of gravity provided in the embodiment of the present invention. In order to simplify the contents of the illustration, the cap is omitted in the figure. The second combination mode of this embodiment uses two weight rings 51 and 52 with different lengths, of which the long weight ring 51 is disposed between the front part 20 and the middle part 30, and the short weight ring 52 is disposed between the middle part 30 and the rear part 40.

[0031] Next, please refer to Fig. 5, which shows a third combination mode of the fountain pen 100 with adjustable center of gravity provided in the embodiment of the present invention. In order to simplify the contents of the illustration, the cap is omitted in the figure. The third combination mode of this embodiment uses three weight rings 51, 52, and 53 with different lengths, and all of the weight rings 51, 52, and 53 are arranged between the front body part 20 and the middle body part 30, and are arranged from the front body part 20 to the middle body part 30 in the order of the shortest weight ring 53, the middle length weight ring 52, and the longest weight ring 51.

[0032] According to an embodiment of the present invention, the fountain pen 100 with adjustable center of gravity can be manufactured by rotating the rear body 40 relative to the front body 20 and removing it, attaching the middle body 30 and weight ring 50 to the joint 21 of the front body 20, and then rotating and fastening the rear body 40, thereby adjusting the appearance of the body 10 and fine-tuning the center of gravity, which is a very quick and convenient operation.

[0033] In addition, the body intermediate section 30 and the weight ring 50 of the embodiment of the present invention can be designed in various sizes (including length and thickness), different materials and different weights, allowing users to freely combine and replace them according to their needs, and further allowing users to combine parts of different shapes to customize the appearance of the fountain pen themselves, which not only allows the overall length and center of gravity of the body 10 to be changed, but also allows the appearance of the fountain pen to be varied, thereby greatly improving the market competitiveness of the product.

[0034] Although the contents of the present invention have been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as limiting the present invention. Various modifications and alternatives to the present invention will become apparent to those skilled in the art upon reading the above content. Therefore, the scope of protection of the present invention should be limited by the scope of the attached utility model registration claims. [Explanation of symbols]

[0035] 100 Adjustable center of gravity fountain pen 10. Torso 20 Front torso 21 Joint 22 Male thread 30 Middle torso 40 Rear fuselage 50 Weight Ring 51 Weight Ring 52 Weight Ring 53 Weight Ring 60 neck 61 Pen Tip 62 Connection 70 Cap

Claims

1. The device includes a body, at least one weight ring, and a neck; the torso section is composed of a front torso section, a middle torso section, and a rear torso section, the rear end of the front torso section has a joint section, the middle torso section has a hollow structure with a front end and a rear end penetrated, the rear torso section is a cylinder with an open front end and a closed rear end, the joint section is screwed into the front end of the rear torso section, and the middle torso section is fitted into the joint section and fixed between the front torso section and the rear torso section, The weight ring is movably fitted to the joint portion and selectively disposed between the joint portion and the intermediate portion or between the intermediate portion and the rear portion; A fountain pen with an adjustable center of gravity, wherein the neck is disposed at the front end of the front body.

2. A fountain pen with adjustable center of gravity as described in claim 1, wherein an external threaded portion is provided on the outer wall of the joint, and an internal threaded portion is provided on the inner wall of the barrel, and the joint is screwed to the external threaded portion in correspondence with the internal threaded portion at the rear of the barrel.

3. 2. The fountain pen with adjustable center of gravity according to claim 1, further comprising a cap, said cap being movably fitted to said neck portion.

4. 2. The fountain pen with adjustable center of gravity according to claim 1, wherein the number of said weight rings is plural.

5. The fountain pen with adjustable center of gravity according to claim 4, wherein all of the plurality of weight rings are disposed between the joint portion and the middle portion of the body, or between the middle portion of the body and the rear portion of the body.

6. The fountain pen with adjustable center of gravity according to claim 4, wherein some of the plurality of weight rings are disposed between the joint portion and the middle portion of the body, and another portion is disposed between the middle portion of the body and the rear portion of the body.

7. 5. The fountain pen with adjustable center of gravity according to claim 4, wherein said weight rings have the same length.

8. 5. The fountain pen with adjustable center of gravity according to claim 4, wherein said plurality of weight rings have different lengths.

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