Writing instrument with elastic cord
A rubber string attached to a four-color ballpoint pen with an adjustment mechanism addresses stability and grip issues, enabling secure hand attachment and precise input, enhancing writing stability and preventing smudging.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- 大冢 正彦
- Filing Date
- 2026-01-23
- Publication Date
- 2026-07-17
AI Technical Summary
Conventional writing instruments are difficult to hold stably, often slip during use, and require extra force and effort due to inconsistent grip positions, and they lack a configuration that allows for secure attachment to the hand.
A rubber string (ring) is fixed to a four-color ballpoint pen with an adhesive, allowing various attachment methods via an adjustment mechanism to stabilize the grip and prevent slipping, and can be worn on multiple fingers or the palm.
The solution ensures stable writing and prevents accidental dropping, enhances grip stability, facilitates precise input on devices, and prevents smudging, while allowing clear visibility for tasks like using an abacus.
Smart Images
Figure 0003256649000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a writing instrument in which a rubber string (ring) is fixed by an adhesive to a four-color ballpoint pen equipped with a sharp pencil mechanism.
Background Art
[0002] Conventionally, there has been no configuration in which a rubber string (ring) is adhered to a writing instrument for use.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] Conventional writing instruments had the following drawbacks. (A) Conventional writing instruments were held and written with three fingers: the index finger, the middle finger, and the thumb. However, at that time, it was difficult to hold the writing instrument stably, and it sometimes slipped during writing. (B) During writing, the grip position between the three fingers and the writing instrument was not constant, and extra force and effort were required when writing characters. The present invention was conceived to eliminate the following drawbacks. 1. A method of fitting a rubber ring on the index finger. 2. A method of winding the index finger and the middle finger with a single rubber string. 3. A method of winding three fingers: the index finger, the middle finger, and the ring finger, with a rubber string (ring). 4. A method of winding all four fingers: the index finger, the middle finger, the ring finger, and the little finger, with a rubber string (ring). 5. A method of winding a rubber string (ring) around the palm and the back of the hand. 6. A method of attaching a rubber string (ring) to the thumb with an appropriate tightening. It has a configuration that can switch these attachment methods by an adjustment mechanism. [Means for solving the problem]
[0005] In the case of (i), since the rubber band (loop) is attached to the writing instrument with adhesive, it becomes possible to prevent it from falling from the palm of the hand or from the conventional three fingers. In the case of (b), a rubber band (loop) is attached to the middle part of the writing instrument to stabilize the balance while writing and prevent it from falling or shifting position. [Effects of the Invention]
[0006] In the case of (i), since the writing instrument is always worn on the hand when writing on a piece of paper or the like, the writing instrument will not be dropped even on a train, and it is possible to write in a stable posture at all times. In other words, this invention represents a new type of writing instrument that transforms writing instruments from something to "hold" to something to "wear." In case (b), since the writing instrument can be attached to the five fingers or palm at a certain distance, input can be easily and accurately performed when operating an abacus, calculator, computer, smartphone, etc. Furthermore, it also has the effect of preventing the brush tip from unintentionally smudging the paper. Furthermore, in the case of (b), when using an abacus, a writing instrument with an elastic band attached is worn on the index finger to manipulate the beads. In this case, if a short writing instrument is used, with the head of the instrument held in the palm facing inward, the beads of the abacus can be clearly seen between the thumb and index finger used to manipulate the beads, thus preventing calculation errors. [Brief explanation of the drawing]
[0007] [Figure 1] This is a perspective view of the present invention. [Figure 2] This is a perspective view showing the state in which the present invention is worn. [Figure 3] This is a perspective view showing the use of the present invention. [Figure 4] This is a perspective view showing the present invention worn on the thumb. [Figure 5]This is a perspective view showing the invention being worn on the thumb and in use. [Modes for carrying out the invention]
[0008] The following describes embodiments for implementing this invention.
[0009] This device consists of a rubber band (loop) glued to the center of a writing instrument, with an adjustment mechanism attached to the rubber band (loop). The writing instrument described here is preferably a four-color ballpoint pen with a mechanical pencil mechanism. An adjustment mechanism allows you to move the elastic cord (loop) by pressing a button, thereby changing the size of the loop. [Explanation of Symbols]
[0010] 1 writing implements 2. Elastic cord (loop) 3 Adjustment mechanism
Claims
[Claim 1] A writing instrument with a rubber band, characterized by having a rubber band (loop) glued to the center of the writing instrument and an adjustment mechanism provided on the rubber band (loop).