Writing instrument

Abstract

To provide a writing instrument that prevents lead breakage, deterioration of writing feel, and keeps hands warm.SOLUTION: Provided is a writing instrument using a thin graphite lead that is retracted. The writing instrument includes a battery unit installed inside the writing instrument, a heating wire connected to the battery, and a support unit with built-in temperature control function by the heating wire being equipped with a bimetal.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a writing instrument. [Background technology]

[0002] 2. Description of the Related Art Conventionally, writing implements such as retractable pencils and ballpoint pens have been known which include a main body cylinder with a pen tip portion provided at the front end thereof. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 3783514 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional writing implements can make the hands cold when used, so the object of the present invention is to prevent the hands from getting cold. [Means for solving the problem]

[0005] One embodiment of the present invention is a writing instrument that uses a thin graphite lead, and includes a battery section installed inside the writing instrument, a heating wire connected to the battery, and a carrier section that has a temperature control function built in by the heating wire being equipped with a bimetal. [Effects of the Invention]

[0006] This invention provides a writing instrument that uses a thin graphite lead, and by incorporating a battery, heating wire, and support, it is possible to provide a built-in temperature control function. This prevents the user's hands from getting cold while using the writing instrument. In addition, the support, which uses a bimetal, is highly safe and resistant to deterioration even with long-term use, improving durability. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a diagram showing an example of how a writing instrument is used. DETAILED DESCRIPTION OF THE INVENTION

[0008] The writing instrument 1 according to this embodiment will be described below.

[0009] The present invention provides a writing instrument 1 that includes a battery section, a heating wire connected to the battery, and a support section 2 equipped with a bimetal for temperature control, whereby the heating wire is controlled by the bimetal, which bends as the temperature rises, limiting the power to the heating wire and adjusting the temperature of the lead. The heating wire is placed in the part to be held, and is heated by inserting a miniature battery. The bimetal allows heating to stop when the temperature reaches a certain level and to resume when the temperature drops below that level. This structure provides a writing instrument 1 that allows for temperature control of the lead.

[0010] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

[0011] In Figure 1, the writing instrument 1 comprises a holder 2 and a switch 3, the battery section (not shown) can use small dry batteries such as miniature batteries, AA batteries, or AAA batteries, a bimetal is installed in the heating wire, and the writing instrument 1 also comprises a holder 2 with a built-in temperature control function. Another feature of the present invention is that the heating wire is placed in the grip, a miniature battery is inserted to heat it, and the bimetal stops heating when it reaches a certain temperature and starts heating again when it falls back to that temperature.

[0012] The writing instrument 1 uses a thin graphite core, the battery section can use small dry batteries such as miniature batteries, AA batteries, and AAA batteries, the heating wire is equipped with a bimetal, and the writing instrument 1 also has a support section 2 with an internal temperature control function. The miniature battery is preferably a small dry battery with a diameter of approximately 11 mm and a length of approximately 30 mm. The AA battery is preferably a medium-sized dry battery with a diameter of approximately 17 mm and a length of approximately 50 mm. The AAA battery is preferably a large dry battery with a diameter of approximately 22 mm and a length of approximately 45 mm. The bimetal is a composite of two different types of metal and has the property of bending with changes in temperature.

[0013] In the writing instrument 1 of the present invention, the heating wire, controlled by a bimetal, bends as the temperature rises. This invention is suitable for a variety of uses, including writing documents and letters, sketching and designing, and preparing exams and reports. It is expected to be useful in cold winter environments and situations requiring prolonged writing. Lead types and thicknesses, such as 0.5mm and 0.7mm, are available, similar to those of ordinary pencil leads. Battery life during extended use varies depending on usage conditions, but typically lasts from several hours to several dozen hours. The battery is replaced by opening the battery compartment on the body of the writing instrument 1 and replacing it with a new one. Temperature control using a bimetal allows for cost-effective production and increased affordability compared to conventional writing instruments with precise temperature control using a machine. Furthermore, this invention is characterized by the incorporation of a bimetal in the heating wire, providing temperature control, and has a different structure from the reactors in prior art documents.

[0014] The holder 2 is the part that is held by hand and is also called the grip. The writing instrument 1 of the present invention has a heating wire inside the grip, which can be heated by inserting a miniature battery. The holder 2 is equipped with a grip, making it easy to hold in your hand. In addition, by incorporating a bimetal, it has the function of stopping heating when it reaches a certain temperature and restarting heating when it falls back to that temperature. This function keeps the lead temperature constant, allowing for smooth writing. The writing instrument 1 can also be used in the shape of a mechanical pencil or ballpoint pen. Furthermore, by using a miniature battery, it can be used easily without having to worry about power supply issues.

[0015] The writing instrument 1 of the present invention includes a low-temperature reaction section and a high-temperature reaction section that reacts at a higher temperature than the low-temperature reaction section, and aims to suppress a decrease in system efficiency. In this embodiment, a heat-conducting member is provided to connect the low-temperature reaction section and the high-temperature reaction section, thereby maintaining the temperature of the high-temperature reaction section within a certain range. When the temperature of the high-temperature reaction section is lower than a predetermined temperature, one end of the heat-conducting member separates, and when the temperature of the high-temperature reaction section exceeds the predetermined temperature, one end of the heat-conducting member comes into contact. This maintains the temperature of the high-temperature reaction section within a certain range, thereby suppressing a decrease in system efficiency. According to this embodiment, the temperature of the high-temperature reaction section in the reaction device can be maintained within a certain range, thereby improving reaction efficiency.

[0016] The writing instrument 1 of the present invention may have a structure including an electric heating tube and thermally conductive oil. This embodiment increases the thermal capacity of the temperature control unit, improving the stability and uniformity of the bottom plate temperature. The temperature control unit has a uniform temperature, is easy to operate, saves energy, and is safe to use, making it highly economical and useful.

[0017] The writing instrument 1 of the present invention comprises a battery section, a heating wire connected to the battery, and a support section 2 having a temperature control function built in by a bimetal mounted on the heating wire, the heating wire being controlled by the bimetal, and the bimetal bending when the temperature rises may limit the power of the heating wire.

[0018] The present invention automatically heats the lead and adjusts it to a comfortable writing temperature, allowing for smoother writing, and is expected to be useful in cold winter environments and situations where long periods of writing are required. In addition, because the temperature is adjusted using a bimetal, it can be produced more cheaply and is more readily available than a writing instrument 1 equipped with accurate temperature adjustment using a conventional machine.

[0019] The writing instrument 1 according to the present invention is a writing instrument that uses a thin graphite lead. Inside the writing instrument 1, there is provided a battery section, a heating wire connected to the battery, and a support section 2 that has a temperature control function built in by the heating wire being equipped with a bimetal.

[0020] The writing instrument 1 of the present invention comprises a battery section, a heating wire connected to the battery, and a support section 2 having a built-in temperature control function due to the heating wire being equipped with a bimetal, and the heating wire is controlled by the bimetal. Furthermore, because the writing instrument 1 has a built-in temperature control function, the temperature of the lead does not become too high, thereby extending the life of the lead.

[0021] The tip of writing instrument 1 is equipped with a mechanism for feeding out a thin graphite lead. Inside writing instrument 1 are a battery section, a heating wire connected to the battery, and a support section 2 equipped with a bimetal for temperature control. A switch 3 is located in the grip, and when switch 3 is turned on, electricity flows from the battery and heats the heating wire.

[0022] A thin graphite lead is retracted from the tip of the writing instrument 1. A battery section is installed inside the writing instrument 1, and a heating wire connected to the battery is arranged. In addition, a bimetal is installed in the support section 2, and a temperature control function is built in. The grip can be heated by inserting a miniature battery.

[0023] The writing instrument 1 of the present invention is a writing instrument 1 that uses a thin graphite core, and the battery section can use small dry batteries such as miniature batteries, AA batteries, or AAA batteries, and the heating wire is equipped with a bimetal, and it also has a carrier 2 with a built-in temperature control function. The writing instrument 1 configured in this way is easy to carry because it uses small dry batteries, and can also be used for long periods of time. The present invention is a writing instrument 1 that uses a thin graphite lead and is easy to carry because it uses small batteries such as miniature batteries or AA batteries inside. It also has a carrier 2 that has a built-in temperature control function using a heating wire equipped with a bimetal, allowing it to be used for even longer periods of time.

[0024] The writing instrument 1 of the present invention is a writing instrument 1 that uses a thin graphite lead and includes a battery section installed inside the writing instrument 1, a heating wire connected to the battery, and a carrier section 2 that has a temperature control function built in by the heating wire being equipped with a bimetal.

[0025] The present invention provides a writing instrument 1 that can improve the feel when holding the writing instrument 1 by positioning the center of gravity of the writing instrument 1 toward the front end. To achieve this object, the present invention provides a writing instrument 1 that includes a battery unit installed inside the writing instrument 1, a heating wire connected to the battery, and a support unit 2 that has a temperature control function built in by mounting a bimetal on the heating wire, and the support unit 2 is configured to be positioned toward the front end. This configuration improves the feel when holding the writing instrument 1 and improves ease of writing.

[0026] Inside the writing instrument 1, there is provided a battery section, a heating wire connected to the battery, and a support section 2 equipped with a bimetal on the heating wire, thereby providing an internal temperature control function. This writing instrument 1 allows you to write by retracting a thin graphite lead. It also has a heating wire inside the grip that can be heated by inserting a miniature battery. This allows you to write comfortably even in cold weather, such as winter. The present invention is a writing instrument 1 that uses a thin graphite lead. This writing instrument 1 is equipped with a miniature battery inside, and a heating wire is placed inside the grip. This heating wire is equipped with a bimetal and has a built-in temperature control function. This structure allows you to write comfortably even in cold weather such as winter.

[0027] The tip of writing instrument 1 is equipped with a mechanism for feeding out a thin graphite lead. Inside writing instrument 1, there is a battery section, a heating wire connected to the battery, and a support section 2 equipped with a bimetal for temperature control. A switch 3 is located in the grip, and turning switch 3 on heats the heating wire. The bimetal stops heating when the temperature rises to a certain level, and starts heating again when the temperature drops below that level.

[0028] The writing instrument 1 according to the present invention is a writing instrument 1 that uses a thin graphite lead. A battery unit is provided inside the writing instrument 1, and a heating wire connected to the battery is installed. The heating wire is equipped with a bimetal and is provided with a support unit 2 that has a built-in temperature control function. The heating wire, controlled by the bimetal, may bend when the temperature rises.

[0029] The writing instrument 1 according to the present invention is a writing instrument that uses a thin graphite lead. A battery section is provided inside the writing instrument 1, and a heating wire connected to the battery is mounted. The heating wire is also equipped with a bimetal, providing an internal temperature control function.

[0030] The writing instrument 1 of the present invention is a writing instrument that uses a thin graphite lead. Inside the writing instrument 1, there is a battery section, a heating wire connected to the battery, and a support section 2 that incorporates a temperature control function by incorporating a bimetal in the heating wire. The heating wire is controlled by the bimetal, and when the temperature rises, the bimetal bends, limiting the power to the heating wire and regulating the temperature of the lead. This structure allows the temperature of the lead to be appropriately adjusted, thereby reducing lead wear and extending the life of the writing instrument 1.

[0031] The tip of the writing instrument 1 is equipped with a mechanism for feeding out a thin graphite lead. Inside the writing instrument 1, there is a battery section, a heating wire connected to the battery, and a support section 2 equipped with a bimetal for temperature control.

[0032] Inside the writing instrument 1, there is provided a battery section, a heating wire connected to the battery, and a support section 2 equipped with a bimetal on the heating wire, thereby providing an internal temperature control function.

[0033] The writing instrument 1 according to the present invention is a writing instrument that uses a thin graphite lead. A battery section is provided inside the writing instrument 1, and a heating wire connected to the battery is installed. The heating wire is equipped with a bimetal, and a support section 2 with an internal temperature control function is provided.

[0034] The present invention provides a writing instrument 1 that includes a battery unit installed inside the writing instrument 1, a heating wire connected to the battery, and a support unit 2 that has a temperature control function built in by the heating wire being equipped with a bimetal. This writing instrument 1 can be used by unwinding a thin graphite lead. The bimetal is a composite of two different metals and has the property of bending with temperature changes.

[0035] The tip of the writing instrument 1 is equipped with a mechanism for feeding out a thin graphite lead. Inside the writing instrument 1, there is a battery section, a heating wire connected to the battery, and a support section 2 equipped with a bimetal for temperature control.

[0036] The writing instrument 1 according to the present invention is a writing instrument 1 that uses a thin graphite lead. A battery section is provided inside the writing instrument 1, and a heating wire connected to the battery is installed. The heating wire is equipped with a bimetal and has a built-in temperature control function. Furthermore, a support section 2 is also provided, and a heat conductive member is installed in this support section 2. One end of this heat conductive member separates when the temperature of the high-temperature reaction section is lower than a predetermined temperature, and one end of the heat conductive member comes into contact when the temperature of the high-temperature reaction section reaches or exceeds the predetermined temperature.

[0037] The writing instrument 1 according to the present invention is a writing instrument that uses a thin graphite lead. A battery section is provided inside the writing instrument 1, and a heating wire connected to the battery is provided. The heating wire is also equipped with a bimetal, and has a built-in temperature control function. This structure allows the temperature control section to maintain a uniform temperature, be easy to operate, save energy, and be safe to use.

[0038] The present invention is a writing instrument 1 that uses a thin graphite lead, and includes a battery unit installed inside the writing instrument 1, a heating wire connected to the battery, and a support unit 2 that has a temperature control function built in by the heating wire being equipped with a bimetal. The built-in temperature control function of this writing instrument 1, due to the bimetal, allows for smooth writing without the lead breaking or cracking when the thin graphite lead is used by being unwound. Furthermore, the battery unit and the heating wire are connected in this writing instrument 1, allowing the lead to be heated using power supplied from the battery.

[0039] The tip of writing instrument 1 is equipped with a mechanism for feeding out a thin graphite lead. Inside writing instrument 1 are a battery section, a heating wire connected to the battery, and a support section 2 with a temperature control function built in by the heating wire being equipped with a bimetal. A switch 3 is located in the grip, and when switch 3 is turned on, electricity flows from the battery and heats the heating wire. Because it is equipped with a bimetal, heating stops when the temperature rises to a certain level, and starts heating again when the temperature drops back to that level.

[0040] The writing instrument 1 may be a writing instrument that dispenses a thin graphite lead, and may have a battery section installed inside the writing instrument 1 and a heating wire connected to the battery, and may have a carrier section 2 that has a bimetal mounted on the heating wire and has a temperature control function built in.

[0041] The writing instrument 1 according to the present invention is a writing instrument 1 that uses a thin graphite lead. A battery unit is provided inside the writing instrument 1, and a heating wire connected to the battery is provided. The heating wire is also equipped with a bimetal, providing a built-in temperature control function. This configuration allows the thin graphite lead to be used at an appropriate temperature when it is used. Furthermore, the above-mentioned features can be used in combination with each other, allowing for more effective use.

[0042] The present invention is a writing instrument 1 that uses a thin graphite lead, and is equipped with a battery section installed inside the writing instrument 1, a heating wire connected to the battery, and a support section 2 that has a temperature control function built in by the heating wire being equipped with a bimetal.

[0043] The writing instrument 1 of the present invention is a writing instrument 1 that uses a thin graphite lead and includes a battery unit installed inside the writing instrument 1, a heating wire connected to the battery, and a support unit 2 that has a temperature control function built in by the heating wire being equipped with a bimetal. This configuration allows the writing feel to be maintained at a constant temperature regardless of the lead hardness or thickness. Furthermore, the use of a bimetal enables the temperature control function to be realized, making the writing feel more stable than conventional writing instruments 1 that do not have a temperature control function.

[0044] The writing instrument 1 is provided inside with a battery section, a heating wire connected to the battery, and a support section 2 equipped with a bimetal on the heating wire, thereby providing a temperature control function. The battery section can also use small dry batteries such as miniature batteries, AA batteries, or AAA batteries. With this configuration, even though the writing instrument 1 uses a thin graphite lead, it is equipped with a temperature control function, so the lead will not break or wear down, allowing for smooth writing. The bimetal may be located at the tip of the support section 2 and have a shape that gradually becomes thicker from the tip of the support section 2 toward the rear.

[0045] Furthermore, in the writing instrument 1 of the present invention, the bimetal is located at the tip side of the holder 2, and has a shape that gradually becomes thicker from the tip side to the rear of the holder 2. This structure prevents the lead from breaking or being worn down, allowing for smooth writing.

[0046] In addition to the configuration described in claim 1, the writing instrument 1 of the present invention has a bimetal located at the tip of the holder 2, and has a shape that gradually becomes thicker from the tip to the rear of the holder 2. This structure prevents the lead from breaking or being worn down, allowing for smooth writing. The bimetal is made up of two metal plates, with a dissimilar metal sandwiched and bonded between them, and has the property of bending and deforming in response to temperature changes, mechanical stress, etc. The use of such a bimetal realizes a temperature regulation function, providing a high-quality writing experience.

[0047] The writing instrument 1 according to the present invention is a writing instrument that uses a thin graphite lead. A battery unit is provided inside the writing instrument 1, and a heating wire connected to the battery is provided. The heating wire is equipped with a bimetal, and a support unit 2 with an internal temperature control function is provided.

[0048] The writing instrument 1 according to the present invention is a writing instrument 1 that uses a thin graphite lead and includes a battery unit installed inside the writing instrument 1, a heating wire connected to the battery, and a holder 2 that has a temperature control function built in by the heating wire being equipped with a bimetal. The holder 2 has a lead housing that houses the graphite lead and a heating wire housing that houses the heating wire, the lead housing being located at the front end of the holder 2 and the heating wire housing being located at the rear end of the holder 2. Furthermore, the graphite lead protrudes from the lead housing, and a lead replacement device is provided at the front end where the graphite lead protrudes. The present invention is a writing instrument 1 that uses a thin graphite lead, and includes a battery unit installed inside the writing instrument 1, a heating wire connected to the battery, and a holder 2 that has a temperature control function built in by the heating wire being equipped with a bimetal.The holder 2 has a lead housing that houses the graphite lead, and a heating wire housing that houses the heating wire, the lead housing being located at the front end of the holder 2, and the heating wire housing being located at the rear end of the holder 2.

[0049] The present invention relates to a writing instrument 1. Writing instrument 1 is used by retracting a thin graphite lead. Writing instrument 1 has an internal battery unit, a heating wire connected to the battery, and a support unit 2 equipped with a bimetal for temperature control. This configuration prevents the lead from breaking even if excessive wear or bending occurs during use of writing instrument 1, maintaining a smooth writing experience.

[0050] The writing instrument 1 according to the present invention is a writing instrument that uses a thin graphite lead. A battery unit is provided inside the writing instrument 1, and a heating wire connected to the battery is installed. The heating wire is equipped with a bimetal and a support unit 2 with an internal temperature control function. This allows consistent writing of characters regardless of the hardness or softness of the lead. Furthermore, according to the present invention, it is also possible to adjust the shading of characters without changing the hardness or softness of the lead.

[0051] The tip of the writing instrument 1 is equipped with a mechanism for feeding out a thin graphite lead. Inside the writing instrument 1, there is a battery section, a heating wire connected to the battery, and a support section 2 equipped with a bimetal for temperature control.

[0052] The tip of writing instrument 1 is equipped with a mechanism for feeding out a thin graphite lead. Inside writing instrument 1, there is a battery section, a heating wire connected to the battery, and a support section 2 equipped with a bimetal for temperature control. A switch 3 is located in the grip, and turning switch 3 on heats the heating wire. The bimetal stops heating when the temperature rises to a certain level, and starts heating again when the temperature drops below that level.

[0053] The present invention relates to a writing instrument 1 that uses a thin graphite lead and includes a battery unit installed inside the writing instrument 1, a heating wire connected to the battery, and a support unit 2 that has a temperature control function built in by the heating wire being equipped with a bimetal. A filament including a heated coil is placed in a mold. [Explanation of symbols]

[0054] 1 writing implements 2 Supporting part 3 Switch

Claims

[Claim 1] A writing instrument that uses a thin graphite core, the writing instrument comprising: a battery unit provided inside the writing instrument; a heating wire connected to the battery, and a support part having a temperature control function by incorporating a bimetal in the heating wire; A writing instrument comprising:

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