JP2003019897A - Writing utensil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a writing utensil which suitably incorporates a commercialized ordinary writing utensil body into a holder and immobilizes the writing utensil body to the holder, while a cap is fitted to the body, in the writing utensil structured of a contact part which comes into contact with the rear end part of the writing utensil body when a writing pressure is applied to the tip part of the body incorporated in the holder and a sensor which detects the writing pressure when the body comes into contact with the contact part by the writing pressure and a sensor switch, provided in the holder. SOLUTION: The writing utensil 1 has a spacer member 4 interposed between the rear end of the writing utensil body 3 and the contact part 216 formed in the holder 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a writing instrument comprising a holder and a writing instrument main body incorporated therein, and a writing instrument constructed such that a switch of a sensor incorporated in the holder is activated by a writing pressure applied to the writing instrument main body. It is a thing.

[0002]

2. Description of the Related Art A writing board called a whiteboard or a copyboard may be installed in a conference room or the like. Such a writing board is designed to be able to write agenda content, lecture content, etc. on the board surface, but recently, a detector for detecting the position of the writing instrument when writing on the board surface is provided on the board surface or the like. An electronic copyboard system has been proposed which is attached and transmits the contents written by a writing instrument to a personal computer or outputs to a printer or the like.

As a writing instrument used in such a system, a water-based or oil-based dedicated marker pen, which is the writing instrument main body, is built into the holder, and the writing pressure applied to the pen tip when writing on the board surface with the marker pen is applied from the marker pen to the holder. There has been considered a device which is configured to transmit to a provided contact portion, and when the contact portion receives pressure, the sensor inside the holder detects it to transmit a sound wave or the like. In this case, the position of the writing instrument is specified by detecting a sound wave or the like emitted from the writing instrument with a detector, and the information written to the board surface is transmitted to the personal computer or the like to display the content written on the board surface of the personal computer. And so on.

[0004]

However, in the writing instrument having such a structure, the holder can be used semipermanently, whereas the writing instrument body such as a marker pen built in the holder is a consumable item. . Therefore, it is necessary to replace the writing instrument main body, which has been consumed and cannot be used, more frequently than the holder. However, some writing instrument holders of this type are designed so that only a dedicated writing instrument body can be built therein. That is, since the holder is manufactured so that the abutting portion is provided at a position corresponding to the size of the dedicated writing instrument body, if the size of the commercially available general writing instrument body is different from that of the dedicated writing instrument body, make it built in the holder. This causes a problem that it cannot be used. It can be said that such a problem is likely to occur particularly when a commercially available writing instrument body is shorter than a dedicated writing instrument body because the commercially available writing instrument body does not reach the contact portion.

When the writing instrument is not used, a cap may be attached to the tip of the writing instrument in order to prevent volatilization of ink from the pen tip of the writing instrument body and drying of the pen tip. If the writing instrument body moves in the holder while it is attached, the writing instrument body may collide with the abutting portion and unnecessarily operate the sensor.

In view of the above problems, the present invention provides a writing instrument constructed such that a commercially available general writing instrument main body can be suitably incorporated in a holder. With the main purpose of
It is also intended to maintain the state in which the writing instrument main body does not move with respect to the holder with the cap attached.

[0007]

That is, the writing instrument of the present invention comprises a holder and a writing instrument main body incorporated in the holder, and the writing instrument when the writing pressure is applied to the tip of the writing instrument main body in the holder. A writing instrument main body comprising a contact portion that comes into contact with the rear end side of the main body, a sensor that detects the writing pressure when the writing instrument body comes into contact with the contact portion due to the writing pressure, and a switch of the sensor. A spacer member is provided between the rear end and the contact portion.

In such a case, the abutting portion of the holder is preliminarily provided at a prescribed position corresponding to the size of the writing instrument main body, especially the length, but is shorter than the dedicated writing instrument main body. Even when a commercially available writing instrument main body is used, a spacer member is interposed between the writing instrument main body and the abutting portion so that the writing pressure applied to the tip of the writing instrument main body when writing is accurately measured. The sensor can be operated by transmitting it to the contact portion. Therefore, even if the dedicated writing instrument body is consumed, if the commercially available writing instrument body which is easily available is used, the writing instrument can be prevented from becoming unusable.

In such a structure, the spacer member is properly provided between the writing instrument main body and the contact portion, and in order to ensure the accuracy of transmission of the writing pressure, a cap that covers the tip of the writing instrument body when not in use. It is preferable that the spacer member can be attached to the rear end portion of the writing instrument body by using a step portion formed at the rear end portion of the writing instrument body for attaching when the writing instrument body is used.

In such a writing instrument, as a preferable structure capable of suitably transmitting the writing pressure to the switch of the sensor, the contact portion is arranged in the front-back direction in which the writing pressure applied to the body of the writing instrument is transmitted to the switch of the pressure sensitive sensor. An example is a transmission mechanism that is slidable.

Further, in order to prevent the writing instrument main body from unnecessarily moving in the holder when the writing instrument is not used and prevent the malfunction of the sensor, the writing instrument formed at the tip of the holder is provided in the writing instrument. A cap is provided that has an inner cylinder that covers the tip of the writing instrument main body that protrudes from the insertion hole that allows the tip of the writing instrument to be inserted when not in use, and holds the inner cylinder when the cap is attached and holds the pen tip at the tip of the writing instrument body. It is preferable that the pen tip holder is fitted to both the outer peripheral surface and the inner peripheral surface of the insertion hole. In order to realize such a cap with a simple structure, on the outer peripheral surface of the inner cylinder part,
It is preferable to form a protrusion that fits with the inner peripheral surface of the insertion hole when the cap is attached.

Further, in order to securely fit the cap to the holder and to allow the cap to be accurately attached to the holders having different diameters at the tips, the cap is disposed outside the inner cylindrical portion. An outer cylinder part to be attached to the front end part of the outer cylinder part, and an inner peripheral surface at the rear end part of the outer cylinder part,
It is preferable to form a plurality of step portions having different diameters that can be fitted to the tip portion of the holder.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the writing instrument 1 of this embodiment has a board scanner BS, which is a detector attached to the whiteboard WB, for writing items written on the general whiteboard WB using the writing instrument 1. Of the electronic copy board system, which is detected by the board scanner BS and transmitted to the personal computer (not shown) to be displayed on the display.
The writing instrument 1 is provided with a sound wave transmitter (not shown) that emits a sound wave in response to a writing pressure applied when writing on the board surface of the whiteboard WB. The position of the writing instrument 1 is detected by two sound wave detectors (not shown) provided at the lower end, converted into vector data, and transmitted to the personal computer via the cable, so that characters written on the board surface and The figure is reproduced on the display of the personal computer in real time. Further, by receiving the infrared rays emitted from the infrared ray transmitter provided at the tip of the writing instrument 1 by the board scanner BS, the colors of characters and figures written on the board surface are reproduced on the personal computer. .

The structure of the writing instrument 1 will be described in detail below.

As shown in FIGS. 1 and 2, the writing instrument 1 mainly includes a holder 2, a marker pen 3 which is a writing instrument main body built in the holder 2, and a spacer member 4 which is attached to a rear end portion of the marker pen 3. And holder 2 and marker pen 3
And a cap 5 to be attached to the tip of the.

The holder 2 is composed of a holder body 21 capable of holding the marker pen 3 in a housed state, and a resin cover 22 detachably attached to the holder body 21. Note that FIG. 2 shows a state in which the cover 22 is removed from the holder main body 21. The holder main body 21 has a substantially gourd-like shape in a plan view in which the position slightly closer to the center is narrowed more narrowly than the front end side and the rear end side so that the user can stably hold it with one hand. . A pen housing groove 212 for housing the marker pen 3 is formed on the upper surface 211 that is exposed when the cover 22 is removed, the pen housing groove 212 having a semicircular shape in a transverse cross section and extending in the front-rear direction. As shown in FIGS. 2 and 5, the pen housing groove 212 has a partial spherical portion 2 formed in a portion of the tip of the holder 2 slightly closer to the center.
It is continuous in the direction of the tip through an insertion hole 214 that penetrates through 13. In addition, as shown in FIGS. 2 and 4, in a portion of the upper surface 211 extending from the pen housing groove 212 to the rear end side,
A transmission mechanism 215 in the form of a thin plate that is slidable about several mm in the front-rear direction is provided, and the pressure sensor applied to the tip of the built-in marker pen 3 at the rear end of the holder 3 is a pressure-sensitive sensor. And its switch (both not shown). Therefore, an abutting portion 216 protruding upward from the upper surface 211 of the holder 21 is formed in the longitudinal central portion of the transmission mechanism 215 located at the rear end portion of the pen housing groove 212, and the tip portion of the marker pen 3 is formed. When the writing pressure is applied to the marker pen 3, the transmission mechanism 215 is slid to the rear end side by bringing the rear end side of the marker pen 3 into contact with the contact portion 216, and the switch is turned on to operate the pressure sensitive sensor. By doing so, a sound wave is transmitted from a sound wave transmitter (not shown) provided in the holder 2. When the writing pressure is not applied, the transmission mechanism 215 is biased toward the tip side by a spring or the like which is an elastic biasing means (not shown). Here, the position of the contact portion 216 is formed, for example, at a position of about 105 mm from the tip of the holder 2 so as to correspond to a state where a dedicated marker pen is built in the holder 2. Further, the tip of the holder 2 forms a protruding end 217 that protrudes further forward from the partial spherical portion 213 into a substantially truncated cone shape, and the insertion hole 2
Projecting end 217 in which the tip of 14 is located at the tip of holder 2
It is continuously opened up to the front. When the marker pen 3 is housed in the pen housing groove 212, the tip end of the marker pen 3 including the pen tip 31 projects from the tip of the holder 2 through the insertion hole 214. In addition, a step portion 218 for accurately mounting the cap 4 described later is formed at the boundary portion of the base end portion of the projecting end portion 217 with the partial spherical portion 213.

As shown in FIGS. 2 to 4, the marker pen 3 has a normal structure in which a rear end of a pen tip 31 made of a fiber such as felt is held by a cylindrical resin body 32. Is a common one. An ink holding member 33 containing oily or water-based ink is built in the body portion 32 so that the ink can be transmitted to the pen tip 31. In addition, the pen tip holder 3 at the tip of the body 32
2a is thinly formed, and the pen tip holding portion 3 of the body portion 32 is formed.
A step portion is formed between 2a and the rear end portion side thereof so that a cap (not shown) for this marker pen can be attached. On the other hand, the rear end portion of the body portion 32 is projected rearward in a hemispherical shape, and the cap is also used between the base end portion of the protruding portion 32b and the front end portion side thereof when the marker pen 3 is used. A step portion 32c similar to that on the front end side is formed so that can be attached to the rear end. Here, the length from the front end to the rear end of the marker pen 3 is 11 cm shorter than the dedicated marker pen built in the holder 2 by about 1 cm.
It is a degree.

The spacer member 4 is made of synthetic resin and is attached to the rear end of the marker pen 3 and has a cylindrical shape with a bottom and a length of about 1 cm. The outer diameter of the spacer member 4 substantially corresponds to the outer diameter of the rear end portion of the marker pen 3. Further, as shown in FIGS. 3 and 4, the inner peripheral surface 41
Is formed into a substantially hemispherical dome shape corresponding to the hemispherical protrusion 32b of the marker pen 3, and the inner peripheral surface 41 thereof is opened forward. Then, in order to allow the spacer member 4 to be closely attached by utilizing the step portion 32c formed at the rear end portion of the marker pen 3, a ring-like protrusion is formed inward in the vicinity of the opening end portion of the inner peripheral surface 41. The small protrusion 41a is formed. Then, with the spacer member 4 mounted as shown in FIG. 3, the marker pen 3 is housed in the pen housing groove 212 of the holder 2 as shown in FIGS.
When the pen tip 31 is projected from 14, the spacer member 4 is just interposed between the rear end portion of the marker pen 3 and the contact portion 216 of the holder 2 as shown by the solid line in FIG. 2 and the phantom line in FIG. Be dressed. Further, when the marker pen 3 with the spacer member 4 mounted therein is built in the holder 2, the pen tip holding at the inner peripheral surface 214a of the insertion hole 214 of the holder 2, the pen tip 31 of the marker pen 3 and the tip of the body portion 32 is held. A slight gap s is formed between the portion 32a and the portion 32a, as shown in FIG.

As shown in FIGS. 5 and 6, the cap 5 is attached to the tip portion of the holder 2 and the tip portion including the pen tip 31 of the marker pen 3 when the writing instrument 1 is not used,
The marker pen 31 includes an inner cylinder portion 51 attached to the tip end portion thereof and an outer cylinder portion 52 attached to cover the protruding end portion 217 of the holder 2. Outer peripheral surface 51 of the inner tubular portion 51
The a and the inner peripheral surface 52a of the outer tubular portion 52 are connected by a plurality of ribs 53 arranged radially, and the cap 5 is formed by integrally molding these ribs 53. The inner cylinder portion 51 has a thickness substantially corresponding to the gap s between the insertion hole 214 of the holder 2 and the pen tip holding portion 32a of the marker pen 3, and is opened rearward and the tip portion is closed. It has a bottomed cylindrical shape. Further, on the outer peripheral surface 51b of the inner cylindrical portion 51, a plurality of minute projections 5 projecting outward are formed.
1c is formed. On the other hand, the outer tubular portion 52 is the inner tubular portion 51.
And is formed on a substantially concentric circle, and has a bottomless cylindrical shape whose diameter is enlarged toward the rear toward the end. A plurality of (two in the illustrated example) step portions 52b having different diameters are formed at the rear end portion of the inner peripheral surface 52a of the outer tubular portion 52. Any of these step portions 52b corresponds to the step portion 218 formed at the tip of the holder 2.
However, when the lever 5 is attached, the rear end of the inner cylinder portion 51 enters the gap s from the front, and as shown in FIG. 5, the inner peripheral surface 51b of the inner cylinder portion 51 has the pen tip of the marker pen 3. The outer peripheral surface 5 is fitted with the outer peripheral surface of the holding portion 32a.
The protruding portion 51c of 1a fits with the inner peripheral surface of the insertion hole 214 in the protruding end portion 217 of the holder 2. At the same time, the stepped portion 52b of the outer cylinder portion 52 is fitted into the stepped portion 218 of the holder 2 so that the cap 5 is securely attached to both the holder 2 and the marker pen 3 without loosening. The cap 5 can be attached to the rear end portion of the holder 2 when used, as shown by an imaginary line in FIG. Therefore, the rear end of the holder 2 is formed with a step having the same structure as the step 218 of the tip.

As described above, according to the writing instrument 1 of this embodiment, when the commercially available marker pen 3 is built in the holder 2, the pen tip 31 of the marker pen 3 is attached to the pressure sensor of the holder 3.
The spacer member 4 is interposed between the contact portion 216 that constitutes the transmission mechanism 215 that transmits the writing pressure applied to the marker pen 3 and the rear end portion of the marker pen 3. Therefore, even though the length of the marker pen 3 is shorter than that of the dedicated marker pen and the rear end thereof does not reach the contact portion 216 when attached to the holder 2, the presence of the spacer member 4 causes the writing pressure to be applied to the contact portion. 216
Can be transmitted to. Moreover, since the spacer member 4 is attached to the marker pen 3 by using the rear end step 32c that is usually formed to attach the cap when the marker pen 3 is not used, the spacer member 4 is attached to the marker pen 3. The attachment state of the member 4 to the marker pen 3 becomes good, and the writing pressure can be accurately transmitted to the contact portion 216.

The cap 5 is adapted to be fitted and attached to both the tip of the marker pen 3 and the tip of the holder 2 at the same time when the writing instrument 1 is not used. In particular,
Attach the inner peripheral surface 51b of the inner cylindrical portion 51 of the cap 5 to the marker pen 3
Of the insertion hole 214 that is closely fitted to the outer peripheral surface of the pen tip holding portion 32a, and further the projection 51c formed on the outer peripheral surface 51a of the inner cylindrical portion 51 is inserted into the tip portion of the marker pen 3 formed on the holder 2. It is designed to be fitted to the peripheral surface. Therefore, the marker pen 3 is held in a state where it cannot be moved to the holder 2 via the cap 5 when not in use,
It is possible to preferably eliminate the problem that the marker pen 3 moves carelessly and collides with the contact portion 216 to wastefully operate the pressure-sensitive sensor. Further, since the pen tip 31 is completely covered by the inner cylinder portion 51, it is possible to prevent the ink from evaporating from the pen tip 31 or the pen tip 31 from drying.
Further, the cap 5 has a plurality of step portions 52b having different diameters formed at the rear end portion of the inner peripheral surface 52a of the outer tubular portion 52, and the step portions 52b are fitted with the step portions 218 of the holder. Therefore, not only can the holding state of the marker pen 3 with respect to the holder 2 be improved, but also when using the holder 2 having a different diameter at the tip portion, any step portion 52b can be attached to the tip portion of the holder 2. become.

The writing instrument of the present invention is not limited to the configuration of the above-described embodiment. For example, as for the marker pen which is the writing instrument main body, various commercially available instruments can be used as long as they are shorter than the dedicated marker pen and have an appropriate thickness. By using the spacer member of the size corresponding to that of
It can be properly built in the holder 2. Also, with respect to the structure of the holder, various structures can be applied, for example, a structure in which a marker pen is inserted from the rear end side and the marker pen can be built in by covering from the rear side thereof. Further, in addition to the above pressure-sensitive sensor, various sensors such as a position sensor can be applied. In addition, the specific configuration of each part such as the cap and the spacer member is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0024]

The present invention is carried out in the form as described above, and has the following effects.

That is, according to the writing instrument of the present invention, even if the contact portion is set in advance in a predetermined portion of the holder due to the positional relationship between the holder, the sensor, the switch thereof, and the dedicated writing instrument body, the writing instrument is better than the dedicated writing instrument body. By interposing a spacer member between a commercially available general writing instrument main body and an abutting portion, it is possible to apply a writing pressure to the writing instrument main body and the spacer when the writing instrument main body of a short size is built in the holder for use. It is possible to operate the sensor by accurately transmitting it to the contact portion via the member. In addition, the spacer member is attached by using the stepped portion provided at the rear end portion for attaching the cap of the writing instrument main body, so that the spacer member can be maintained in a good attachment state and the writing pressure can be transmitted to the contact portion. Can be suitably performed.

Further, if the abutting portion constitutes a part of a sliding movable transmission mechanism for transmitting the writing pressure applied to the writing instrument main body to the switch of the pressure sensitive sensor, the writing pressure is preferably used as the sensor switch. A writing instrument having a simple structure that can be transmitted can be configured.

If the writing instrument is provided with a cap that covers the tip of the holder and the writing instrument body, and the cap is fitted to both the writing instrument body and the holder at the same time, the writing instrument body cannot be moved to the holder through the cap. Thus, it is possible to effectively avoid the problem that the writing instrument main body moves in the holder and collides with the abutting portion to activate the sensor when not in use. Specifically, by forming a protrusion on the outer peripheral surface of the inner cylindrical portion that fits with the inner peripheral surface of the insertion hole of the holder when the cap is attached, a useful cap can be realized with a simple configuration. Further, the cap is provided with an outer cylinder part to be attached to the tip of the holder, and the inner peripheral surface at the rear end of the cap is formed with a plurality of step parts having different diameters that can be fitted to the tip of the holder. Even if the diameters at the tips are different, the cap can be attached accurately.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of use of an embodiment of the present invention.

FIG. 2 is a plan view showing a state in which a cover of the holder of the same embodiment is removed.

FIG. 3 is an enlarged cross-sectional view showing a mounting state of the marker pen and a spacer member.

FIG. 4 is an enlarged perspective view showing the main part.

FIG. 5 is a cross-sectional view showing a tip portion of the same embodiment.

6 is a cross-sectional view taken along line VI-VI showing only the cap in FIG.

[Explanation of symbols]

1 ... Writing instrument 2 ... Holder 3 ... Writing instrument body (marker pen) 4 ... Spacer member 5 ... Cap 214 ... insertion hole 215 ... Transmission mechanism 216 ... Abutting part 31 ... Nib 32a ... Pen tip holder 32c ... Step 51 ... Inner cylinder 51a ... Outer peripheral surface 51b ... inner peripheral surface 51c ... projection 52 ... Outer cylinder part 52a ... inner peripheral surface 52b ... Step

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 2C071 CA02 CA04 DA05 DC04 DC08                 5B068 BD02 BD13 BD22

Claims (6)

[Claims] 1. A holder, and a writing instrument main body built in the holder, wherein the holder has an abutting portion which comes into contact with a rear end side of the writing instrument main body when a writing pressure is applied to a tip portion of the writing instrument main body. In a configuration provided with a sensor and a switch for the sensor that detects the writing pressure when the writing instrument body comes into contact with the abutting portion due to the writing pressure, between the rear end of the writing instrument body and the abutting portion. A writing instrument characterized in that an intervening spacer member is provided. 2. The spacer member is provided at the rear end of the writing instrument main body by utilizing a step formed at the rear end of the writing instrument main body to attach a cap that covers the tip of the writing instrument main body when not in use. The writing instrument according to claim 1, wherein the writing instrument can be attached to a part. 3. The abutting portion constitutes a part of a transmission mechanism that is slidable in the front-rear direction for transmitting the writing pressure applied to the writing instrument main body to the switch of the pressure-sensitive sensor. The writing instrument according to item 1 or 2. 4. A cap having an inner cylindrical portion for covering the tip of the writing instrument body protruding from an insertion hole formed at the tip of the holder for inserting the tip of the writing instrument body when not in use,
When the cap is attached, the inner cylinder portion is configured to be fitted to both the outer peripheral surface of the pen tip holding portion that holds the pen tip at the tip of the writing instrument body and the inner peripheral surface of the insertion hole. The writing instrument according to claim 1, 2 or 3. 5. The writing instrument according to claim 4, wherein the outer peripheral surface of the inner cylindrical portion is formed with a protrusion that fits with the inner peripheral surface of the insertion hole when the cap is attached. 6. The cap is provided with an outer cylinder portion which is arranged outside the inner cylinder portion and is attached to the tip end portion of the holder, and the inner peripheral surface of the rear end portion of the outer cylinder portion is attached to the tip end portion of the holder. The writing instrument according to claim 4 or 5, wherein a plurality of step portions having different diameters that can be fitted are formed.