WO2010064314A1

WO2010064314A1 - Writing implement with timepiece device

Info

Publication number: WO2010064314A1
Application number: PCT/JP2008/072120
Authority: WO
Inventors: ▲りん▼太郎仁科
Original assignee: Nishina Rintaro
Priority date: 2008-12-05
Filing date: 2008-12-05
Publication date: 2010-06-10
Also published as: CN101821113A; CN101821113B; JP5176046B2; TWI423891B; JPWO2010064314A1; TW201026520A

Abstract

A writing implement (10) having a timepiece device is constructed from a writing implement (8) which is a lead holding member for holding a writing lead, a case (12) for axially movably holding the lead holding member and having a grip (22) at a part of the outer periphery of the case, a timepiece device provided to the case (12) and having a liquid crystal display (34), a click spring (60) for imparting an urging force to the lead holding member in the direction in which the lead holding member projects to the writing tip side of the case, and a switch for activating the timepiece device by detecting the fact that a pressing force is applied to the writing lead against the urging force to cause the lead holding member to move axially together with the writing lead toward the tail end, opposite to the front end, relative to the case (12).

Description

Writing instrument with timing device

The present invention relates to a writing instrument with a timing device.

As a learning method, apart from the method of solving a problem over time, a method of concentrating and solving a problem quickly is proposed. In this case, in order to carry out this method by one person, it is required to write on an answer sheet or the like by using a timing device such as a stopwatch. For such a case, a writing instrument provided with a timing device has been devised.

For example, in Patent Document 1, as a writing instrument having a time measuring unit, a writing instrument called a so-called mechanical pencil that pulls out a core by a knock operation, a writing instrument called a so-called ballpoint pen having a ballpoint pen, etc., a time measurement having a start / stop button. A configuration is disclosed in which functional parts are integrated and incorporated.

Patent Document 2 discloses that a timer device including a switch, an electronic timer, an alarm, and a battery is incorporated as a writing instrument with a timer in a grip of a writing instrument, or in a cap of a pencil or office ballpoint pen.
Registered Utility Model No. 3102150 Japanese Patent Laying-Open No. 2005-313583

If the timing device is provided in the writing instrument as in the prior art, there is no need to provide a special stopwatch, timer, etc., which is convenient.

However, since there is no change in using the writing instrument and the timing device separately, for example, start the timing device with your hand, then change the writing instrument into your hand and write it on the answer sheet to solve the problem. In some cases, when all the problems are solved, it is necessary to remove the writing instrument from the hand and stop the timing device. In some cases, it is conceivable to have a writing instrument with a timing device on the right hand and to start and stop the timing device with the left hand, but the timing device integrated with the writing instrument is small, the operation buttons are small, and it is not a dominant hand It is inconvenient to operate by hand.

An object of the present invention is to provide a writing instrument with a timing device that can easily start and stop the timing device when writing using a timing device.

A writing instrument with a timing device according to the present invention is a case having a core holding member for holding a writing core for performing writing, a core holding member movably held in the axial direction, and a gripping part at a part of the outer periphery. A timing device provided on the case and having a display unit, an urging means for applying an urging force in a direction in which the core holding member protrudes toward the writing tip side of the case, and a pressing force against the urging force. A timing device that detects the relative movement of the core holding member together with the writing core in the axial direction toward the end, which is the end opposite to the writing tip, with respect to the case. And a switch portion for operating the device.

Further, in the writing instrument with a timing device according to the present invention, the switch unit has a standard writing condition with respect to a writing pressure at which the pressing force presses the writing core part against the writing target medium and a writing angle of the writing core part with respect to the writing target medium. Therefore, it is preferable to operate when a predetermined pressing force threshold value that is set in advance is exceeded.

Further, in the writing instrument with a timing device according to the present invention, the switch unit can start, stop, or reset the timing device based on a time-series state or a duration state when the pressing force exceeds the pressing threshold. preferable.

Further, in the writing instrument with a timing device according to the present invention, the timing device has a visual caution display, an audible caution display, or an oscillating display for at least one state when the start, stop, reset, or subtraction timer becomes zero. It is preferable to display a caution.

In the writing instrument with a timekeeping device according to the present invention, the core holding member is preferably an ink holding cylinder having a ballpoint pen tip as a writing core at the tip.

Moreover, in the writing instrument with a timekeeping device according to the present invention, the core holding member is preferably a pencil cylinder having a tip core as a writing core and a knock part for feeding the core.

Moreover, in the writing instrument with a time measuring device according to the present invention, the core holding member has a hexagonal outer shape including the writing core at the center, and a passing distance between opposite ridges of the hexagon with respect to an axial cross section. It is a hexagonal writing instrument having a certain maximum outer dimension and a minimum outer dimension that is a parallel distance between opposite sides of the hexagon, and is a writing instrument holder portion that holds the core holding member, and the hexagonal writing instrument is attached and detached. A detachable holder part that can be freely inserted and fixed after insertion, and in a state where the hexagonal writing instrument is integrally fixed to the writing instrument holder part, the biasing means attaches the hexagonal writing instrument to the case writing tip part via the writing instrument holder part. A biasing force is applied in the direction of projecting to the side, and the switch unit activates the timing device by detecting that the hexagonal writing instrument has moved relative to the case toward the distal end side through the writing instrument holder. So it is preferable.

Moreover, in the writing instrument with a timing device according to the present invention, the writing instrument holder portion is integrally attached to the holder body having a larger inner diameter than the maximum outer dimension of the hexagonal writing instrument, and the maximum outer shape of the hexagonal writing instrument. When having a wide-diameter part having an inner diameter larger than the dimension and a narrow-diameter part having an inner diameter smaller than the maximum outer dimension and larger than the minimum dimension, and aligning the opposite sides of the hexagonal writing instrument with the small-diameter part A hexagonal writing instrument can be inserted so as to be freely movable in the axial direction, and a fixing rotating member that can fix the hexagonal writing instrument when the opposite ridges of the cross section of the hexagonal writing instrument are aligned with the small diameter portion after insertion is provided on the holder body. And a holder handle used for rotating the fixing rotating member around the axial direction together with the holder main body.

With the above configuration, the writing instrument with a timing device is provided with a timing device having a display portion in a case having a gripping portion, holding a core holding member that holds a writing core portion for writing in an axial direction. The core holding member is applied with an urging force in a direction protruding toward the writing tip portion side of the case by the urging means, and when a pressing force is applied to the writing core portion against the urging force, together with the writing core portion The switch part detects that the core part holding member has moved in the axial direction relative to the case and activates the time measuring device. That is, if the writing core is moved in the axial direction with respect to the case, the timing device is automatically activated. For example, if you hold the grip part of the case and press the writing core part against the writing medium, a pressing force is applied against the biasing force, and the core holding member moves in the axial direction with respect to the case. This automatically activates the timing device. Therefore, when writing is performed using the time measuring device, the operation of the time measuring device can be easily performed.

Further, in the writing instrument with a timing device, the switch unit is set in advance so that the pressing force is based on standard writing conditions with respect to the writing pressure for pressing the writing tool against the writing target medium and the writing angle of the writing tool with respect to the writing target medium. Operates when a predetermined pressing force threshold is exceeded. For example, in the case of a pencil, the average writing pressure is said to be from 50 g to 100 g, and the recommended value of the inclination angle of the pencil with respect to the writing medium is said to be 50 degrees. Therefore, when the maximum writing pressure is 100 g and the inclination angle is 50 degrees, the magnitude of the axial component of the writing pressure writing instrument is about 77 g. In this example, if 77 g is set as the pressing force threshold value, the switch unit is operated with a large pressing force exceeding the standard writing condition, whereby the timing device can be operated. Thus, by making the pressing force threshold value a value that is in line with the user's intention to operate the timing device, it is possible to suppress erroneous operation of the timing device.

Also, in the writing instrument with a timing device, the switch unit starts, stops, or resets the timing device based on the time series state or duration state when the pressing force exceeds the pressing threshold. Since the pressing operation of the writing instrument itself is simple, some operation modes of the timing device cannot be performed only by the simple operation. Therefore, start, stop, and reset are distinguished by the time-series state of the pressing operation, for example, the order of the pressing operation. Alternatively, start, stop, and reset are distinguished by the duration of the pressing operation, for example, the length of the pressing time. In this way, the timing device can be started, stopped, and reset by a combination of simple pressing operations.

Further, in the writing instrument with a timing device, the timing device performs a visual caution display, an audio caution display, or a vibration caution display for at least one state when the start, stop, reset, or subtraction timer reaches zero. Therefore, the user can easily confirm whether or not the timing device has been properly operated by the pressing operation.

Further, in the writing instrument with a timing device, the core holding member is an ink holding cylinder having a ballpoint pen tip as a writing core at the tip, so the writing instrument with a timing device is designed with a special design called a so-called ballpoint pen. Can be configured.

Further, in the writing instrument with a timing device, the core holding member is a pencil cylinder portion having a core tip as a writing core portion at the tip and a knock portion for feeding the core tip at the end. A writing instrument with a timing device can be configured with a special design of the type called.

Further, in the writing instrument with a timing device, when the core holding member is a writing instrument having a hexagonal outer shape such as a pencil, the maximum outer dimension and the minimum outer dimension of the hexagonal writing instrument using a removable writing instrument holder unit. Using this difference, the hexagonal writing instrument can be detachably inserted and fixed after insertion. As a result, when writing is performed using the timing device, the timing device can be easily operated using a standardized and inexpensive writing instrument such as a pencil.

Further, in the writing instrument with a timing device, the writing instrument holder portion is provided on the holder body having an inner diameter larger than the maximum outer dimension, a fixing rotating member integrally attached to the holder body, and the holder body. A holder handle used for rotating the fixing rotary member around the axial direction is configured. The case can be moved within a predetermined rotation angle range around the axial direction while keeping the holder body movable in the axial direction and the axial guide portion that holds the outer shape of the holder body in the axial direction. And a handle guide portion that is held in the housing. Here, the fixing rotating member has a wide diameter portion having an inner diameter larger than the maximum outer dimension of the writing instrument, and a narrow diameter section having an inner diameter smaller than the maximum outer dimension and larger than the minimum dimension, and a cross section of the writing instrument. When the opposite sides of the writing tool are aligned with the small-diameter portion, the writing instrument can be inserted so as to be movable in the axial direction. After the insertion, the writing tool can be fixed by aligning the opposing ridges with respect to the cross-section of the writing instrument. Since it is set as such a structure, the writing instrument holder part can detachably insert a hexagonal writing instrument using the difference of the maximum external dimension and the minimum external dimension of a hexagonal writing instrument, and can fix it after insertion.

It is an external view of the writing instrument with a time measuring device of the embodiment according to the present invention. It is a top view of the writing instrument with a time measuring device of the embodiment according to the present invention. It is a front view of the writing instrument with a time measuring device of an embodiment concerning the present invention. It is a bottom view of the writing instrument with a time measuring device of the embodiment according to the present invention. In embodiment which concerns on this invention, it is sectional drawing seen from the side surface direction of the case. It is a figure which shows the cross-sectional structure corresponding to the front view of FIG. FIG. 5 is a view corresponding to the bottom view of FIG. 4 and showing a cross-sectional structure in which a liquid crystal display is omitted so that the state of a circuit board can be understood. In embodiment which concerns on this invention, it is a figure explaining a mode when the front-end | tip of a writing instrument is pushed in against the urging | biasing force of a click spring. In embodiment which concerns on this invention, it is a figure which shows the state which a writing instrument can move freely to an axial direction. In embodiment which concerns on this invention, it is a figure which shows the state by which the writing instrument was fixed by the rotation member for fixing. In embodiment which concerns on this invention, it is a block diagram which shows the electrical signal processing relationship of the writing instrument with a time measuring device. In embodiment which concerns on this invention, it is a flowchart explaining the effect | action of the writing instrument with a time measuring device. In embodiment concerning this invention, it is a time chart which shows each state at the time of a stopwatch function. In embodiment which concerns on this invention, it is a time chart which shows each state at the time of a reset function. In embodiment which concerns on this invention, it is a figure explaining the structural example when using a non-contact-type switch part. It is a figure which shows the mode of a state when a writing instrument is pushed in in FIG. In embodiment which concerns on this invention, it is a figure explaining the structure of the example which provides a cutting blade in a writing instrument holder part. In embodiment which concerns on this invention, it is a figure which shows the case where the core uses what is drawn out by operation of a knock part as a writing instrument. In embodiment which concerns on this invention, it is a figure which shows the example which comprises the writing instrument with a dedicated time measuring device using the ink holding | maintenance cylinder part which has a ball-point pen tip as a core part holding member. In embodiment which concerns on this invention, it is a figure which shows another example which comprises the writing instrument with a dedicated time measuring device using the ink holding | maintenance cylinder part which has a ball-point pen tip as a core part holding member. In an embodiment according to the present invention, a writing with a dedicated timing device using a pencil cylinder portion having a core tip as a writing core portion at the tip as the core portion holding member and a knock portion for feeding the core tip at the end. It is a figure which shows the example which comprises a tool.

Explanation of symbols

3 core, 4,176 knock part, 5 cylinder part, 6,8 writing instrument, 7 depression, 10, 130, 140, 160, 170 writing instrument with timing device, 12 case, 13 through hole center line, 14, 152, 178 Front case body, 15,100 recess, 16,154,180 rear case body, 18 writing tip, 20 terminal, 22 gripping part, 24 battery cover, 26 function selection button, 28 minute setting button, 30 second setting button , 32 handle guide part, 33 axial guide part, 34 liquid crystal display, 36 liquid crystal display device, 38 makeup panel, 40, 41, 120, 132, 156 writing instrument holder part, 42 holder body, 44 holder handle, 46, 158, 168, 182 Click spring pressing part, 48 Rotating member for fixing 50 wide diameter part, 52 narrow diameter part, 60, 61 click spring, 70, 72 electrode pattern, 80, 81 circuit board, 82 long press reset circuit, 84 control IC, 86 crystal resonator, 88 buzzer, 90 battery, 92 , 94 electrode spring plate, 102 ball, 104 pressing spring, 106 coil spring, 108 magnet, 110 magnetic sensor, 121 extension member, 122 cutting blade, 142, 143, ink holding cylinder, 144, ballpoint, 146 convex outer periphery, 166 Push piece, 172, pencil cylinder, 174, tip, 176 knock.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Hereinafter, an example in which a hexagonal pencil whose outer shape and dimensions are standardized by standardization will be described as a writing instrument, but other writing instruments may be used. For example, as will be described later, a so-called mechanical pencil that feeds the nib by a knocking operation may be used, or a so-called ball-point pen having a ball-point nib may be used, or a fountain pen may be used.

In the following, similar elements are denoted by the same reference symbols in all drawings, and redundant description is omitted. In the description in the text, the symbols described before are used as necessary.

FIG. 1 is an external view of the writing instrument 10 with a timing device, FIG. 2 is a top view, FIG. 3 is a front view, and FIG. 4 is a bottom view. The writing instrument 10 with a timekeeping device can be used by simply pressing the tip of the pencil as the writing tool 8 against a writing medium such as an answer sheet on the desk so as to be convenient when writing with the timekeeping device. It has a function of detecting the push amount Δ and operating the timing device.

The writing instrument 10 with a timing device includes a hexagonal pencil as the writing instrument 8, a case 12, a writing instrument holder unit 40 provided inside the case 12, and movable relative to the case 12 in the axial direction, and a writing instrument. A click spring 60 that applies an urging force so that the holder portion 40 protrudes toward the writing tip 18 with respect to the case,

electrode patterns

70 and 72 that are contacts of a switch portion that is operated by deformation of the click spring 60, and the case 12 The liquid crystal display (Liquid Crystal Display: LCD) 34 which is a display part provided is comprised.

The writing instrument 8 is a pencil having a hexagonal outline here. As a standard writing instrument, a pencil is standardized in terms of external shape and dimensions in Japan Industrial Standards. Specifically, the total length in the axial direction is 172 mm or less, the cross-sectional shape perpendicular to the axial direction is a hexagon, and the outer diameter is determined to be 8 mm or less. That is, the writing instrument 8 is a hexagonal writing instrument having a maximum outer dimension that is a distance between hexagonal facing edges and a minimum outer dimension that is a parallel spacing distance between opposite sides of the hexagon in the axial section. It is.

The case 12 is a plastic casing shaped so as to wrap around the outer periphery of the writing instrument 8 along the axial direction of the writing instrument 8. Since one side edge part of case 12 is an edge part which the core which is a writing front-end | tip part of the writing instrument 8 protrudes, this can be called the writing front-end | tip part 18 as mentioned above. Since the end opposite to the writing tip 18 in the axial direction is the end from which the end of the writing instrument 8 protrudes, it can be called the end 20. The case 12 is provided with a through hole into which the writing tool 8 that is a pencil can be inserted from the end portion 20 toward the writing tip portion 18. This through hole is preferably a hexagonal through hole larger than the outer shape of the writing tool 8 in order to facilitate the insertion of the writing tool 8 which is a pencil having a hexagonal outer shape.

The case 12 has a two-body structure including a front case body 14 on the side where the liquid crystal display 34 is provided and a rear case body 16 on the opposite side. The front case body 14 and the rear case body 16 substantially correspond to two parts when the case 12 is divided into two on a plane passing through the through hole center line.

This is shown in FIG. FIG. 5 is a cross-sectional view of the case 12 as viewed from the side. As described above, the case 12 is divided into two mainly on the surface passing through the through-hole center line 13, and the case 12 becomes a front case body 14 and a rear case body 16, respectively. Since the front case body 14 and the rear case body 16 are thus divided by a cut surface mainly including the surface passing through the through-hole center line 13, when combined with each other, A groove and a corresponding protrusion are provided along the cut surface. For example, the rear case body 16 is provided with a groove, and the front case body 14 is provided with a protrusion. The groove and the projecting portion can be provided at appropriate locations as long as necessary for locking the both.

The through-hole center line 13 is literally a cylindrical center line on the writing tip 18 side of the case 12, but the case 12 itself has a bulging shape on the end 20 side. It is not the center line of the cross-sectional shape. Then, on the end portion 20 side, the front case body 14 and the rear case body 16 are divided at positions shifted from the through hole center line 13. Specifically, the rear case body 16 extends toward the front case body 14 on the end portion 20 side. A recessed portion 15 is provided in the extended portion.

The hollow portion 15 has a locking function for preventing displacement in the axial direction and the direction perpendicular thereto when the front case body 14 and the rear case body 16 are combined and integrated. The front case body 14 and the rear case body 16 are positioned and locked by the indented portion 15, the groove and the protrusion provided along the cut surface, and can be integrated and assembled.

The grip 22 provided on the side of the writing tip 18 of the case 12 is a plastic rubber ring having appropriate elasticity and surface friction characteristics. The length along the axial direction of the grip portion 22 is set to a length sufficient to grip it with a finger. For example, it can be about 50 mm. As a result, when the user holds and holds the writing instrument 10 with the timekeeping device with his / her finger and writes, the finger does not slip and can be held firmly to perform stable writing. In addition, the grip portion 22 also has a function as a coupling member that integrates the front case body 14 and the rear case body 16 so as not to be separated by utilizing radial elasticity as a material of plastic rubber.

The liquid crystal display 34 provided on the front case body 14 is a time display device for managing time when writing. Here, a liquid crystal display of a 4-digit number segment capable of displaying a minute display and a second display is shown. In the example of FIGS. 1 and 2, a display of 9 minutes 35 seconds is shown.

The battery cover 24 provided at the end portion 20 on the front case body 14 is a slide-type detachable cover used when replacing the button battery stored in the case 12. In the example of FIG. 2, the battery lid 24 is removed from the front case body 14 by placing a finger on the non-slip unevenness provided on the surface of the battery lid 24 and sliding it toward the end portion 20 of the case 12. The battery inside the case 12 can be exposed.

As shown in FIGS. 2 and 3, the two buttons provided on the side surface of the front case body 14 are both operation buttons related to the display setting of the liquid crystal display 34. Here, a minute setting button 28 and a second setting button 30 as push buttons are shown.

ストップ Either the stopwatch function or the subtraction timer function can be selected as the timekeeping function. The stopwatch function starts and counts the elapsed time as the time count increases starting from 0 seconds. The subtraction timer function starts from a preset time and decreases the time count. This is a function for measuring and displaying the remaining time.

The two functions are normally selected to be the stopwatch function. When the minute setting button 28 or the second setting button 30 is operated, the stopwatch function cannot be used, and the function is automatically switched to the subtraction timer function. Automatic function switching is performed so that Of course, a special function selection button may be provided to select a function by a user operation.

The minute setting button 28 and the second setting button 30 are operation buttons used for setting the start time from the reset state when the subtraction timer function is selected. Each time the minute setting button 28 is pressed, the minute display segment of the liquid crystal display changes in units of one minute, such as 1, 2, 3,. If the button is held down for a long time, the minute display segments are automatically and sequentially changed according to the pressed time. The second setting button 30 can also set the display of the second segment of the liquid crystal display 34 with the same function.

The handle guide portion 32 provided at the substantially central portion along the axial direction of the rear case body 16 is an opening window for guiding the movement of the holder handle 44 of the writing instrument holder portion 40. As will be described later, the writing instrument 8 is inserted into the writing instrument holder section 40 and the writing instrument holder section 40 is rotated around the longitudinal axis of the writing instrument 8, so that the writing instrument 8 is inserted into the writing instrument holder section 40 by the action of the fixing rotating member 48. Can be fixed. The holder handle 44 is a portion that protrudes in the radial direction integrally with the holder main body 42 of the writing instrument holder portion 40, and is an operation handle for rotating the writing instrument holder portion 40 about the longitudinal axis of the writing instrument 8. The handle guide portion 32 is an opening window that regulates the movement range of the outer shape of the holder handle 44 that is a portion protruding from the holder body 42 in order to guide the rotation of the holder handle 44 around the longitudinal axis within a predetermined rotation angle range. It is.

Specifically, the rear case body 16 is provided with a substantially rectangular opening window, and the holder handle 44 is designed to enter the opening range. In the example of FIG. 4, it is shown that the holder handle 44 is on the writing tip end 18 side in the range of the opening window of the handle guide portion 32 and on the lower side in the drawing. Here, the reason for being on the side of the writing tip 18 is that the writing instrument holder 40 is urged by the urging force of the click spring 60. The rotation operation of the writing instrument holder portion 40 around the axial direction is performed by moving the holder handle 44 in the direction of the arrow shown in FIG.

6 and 7 are sectional views of the writing instrument 10 with a timing device, FIG. 6 is a diagram showing a sectional structure corresponding to the front view of FIG. 3, and FIG. 7 corresponds to the bottom view of FIG. It is a figure which shows the cross-section which abbreviate | omitted 34 and the state of the circuit board 80 was understood.

As shown in FIG. 6, the liquid crystal display 34 includes a liquid crystal display device 36 disposed on a circuit board 80 and a decorative panel 38 for protecting the display surface from the outside.

A button-type battery 90 is disposed below the battery cover 24, and the battery 90 is brought into contact with electrode portions by

electrode spring plates

92 and 94 extending from the circuit board 80, whereby the circuit board 80 and the battery are contacted. 90 is electrically connected.

As shown in FIG. 7, the circuit board 80 is a rectangular printed circuit board that is fixedly attached to the front case body 14 and extends in the longitudinal axis direction. A plurality of electronic components are arranged on the circuit board 80, and the

electrode spring plates

92 and 94 connected to both electrodes of the battery 90 are attached as described above. As a representative example of the plurality of electronic components, FIG. 7 shows a long press reset circuit 82, a control IC 84, and a crystal resonator 86, which will be described later. These are mounted on the circuit board 80 by using, for example, surface mounting technology.

Further, three

electrode patterns

70 and 72 are provided on the side surface of the end portion of the circuit board 80 on the writing tip end portion 18 side. The three

electrode patterns

70 and 72 are separated from each other, and are short-circuited by the click spring 60, thereby exhibiting a function as a switch. That is, among the three

electrode patterns

70 and 72, the electrode pattern 72 arranged at the center is not normally in contact with the click spring 60, but is electrically separated from the electrode pattern 72 and arranged on both sides thereof. In the two electrode patterns 70, both end portions of the click spring 60 are always in contact with each other.

Accordingly, the electrode pattern 72 and the electrode pattern 70 are normally in an electrically open state, that is, in an off state of the switch. However, when the click spring 60 is deformed and contacts the electrode pattern 72, the electrode pattern 72 and the electrode pattern 70 The pattern 70 is electrically short-circuited, that is, the switch is turned on. Thus, the

electrode patterns

70 and 72 and the click spring 60 constitute a switch part. The operation as the switch unit will be further described later with reference to FIGS.

The

electrode patterns

70 and 72 are formed on the side surface of the end of the circuit board 80, that is, in the thickness direction of the circuit board 80. The

electrode patterns

70 and 72 are formed by arranging three through holes in the circuit board 80 in a straight line, and forming a through hole at the center of the circuit board 80 as a long groove, and applying appropriate metal plating to each through hole. It can be formed by cutting the circuit board 80 at the connecting center line. As described above, the

electrode patterns

70 and 72 are provided in a portion recessed from the side surface of the end portion of the circuit board 80. As the circuit board 80, for example, a glass epoxy double-sided circuit board can be used.

As shown in FIG. 7, the click spring 60 is formed by processing an elastic thin metal plate into a rectangular shape, bending both ends thereof to form leg portions, and circular in a direction opposite to the bending direction of the leg portions. This is a surface-pressing type conductive leaf spring in which a convex portion having a shape is formed at the center of a thin plate. By applying a pressing force to the circular convex portion at the center, the center is deformed to the leg side, and when the pressing force is removed, the center returns to its original shape. As shown in FIG. 7, the click spring 60 is configured so that the leg portions at both ends thereof are in contact with the electrode pattern 70 of the circuit board 80 and the circular convex portion at the center portion faces the electrode pattern 72. Arranged along the side surface of the end of the substrate 80.

6 and 7, the writing instrument holder 40 includes a holder main body 42, a holder handle 44, a click spring pressing portion 46, and a fixing rotating member 48. The writing instrument holder 40 uses these components, and uses the difference between the maximum external dimension and the minimum external dimension of the hexagonal writing instrument 8 to allow the hexagonal writing instrument 8 to be detachably inserted and fixed after insertion. It is a holder part.

The writing instrument holder 40 is held by the case 12 so that it can move in the axial direction of the case 12 with respect to the case 12. FIG. 7 shows an axial guide portion 33 as a sliding inner diameter provided in the case 12 for guiding and holding the axial movement of the writing instrument holder portion 40. Further, in order to fix the writing instrument 8, the case 12 is held by the case 12 so as to be rotatable about the axial direction with respect to the case 12. The guide means in this axially rotating case 12 is the handle guide portion 32 described in FIG.

The click spring pressing portion 46 provided on the end portion 20 side of the writing instrument holder portion 40 is a portion protruding from the holder main body 42 toward the end portion 20 side so as to contact the click spring 60. As described above, the click spring 60 is supported by the recesses of the electrode pattern 70 of the circuit board 80 at the leg portions at both ends, and the center portion is usually flat. When a pressing force in the direction toward the end portion 20 is applied, the circular convex portion at the center is elastically deformed toward the end portion 20, but when the pressing force is removed, the original flat shape is restored. That is, the click spring 60 has a function as an urging unit that applies an urging force to the circuit board 80, that is, the case 12 in a direction in which the writing tool holder portion 40 protrudes toward the writing tip portion 18. The click spring pressing portion 46 is a portion that mechanically contacts such a click spring 60.

Therefore, the writing instrument holder 40 is normally biased toward the writing tip 18 by receiving the biasing force of the click spring 60 from the click spring pressing portion 46. The case 12 is provided with an appropriate step so that the writing tool holder portion 40 does not go too far to the writing tip portion 18 side. Further, the window-shaped opening of the handle guide portion 32 described with reference to FIG. 4 also has a function of restricting movement in the axial direction. When the writing instrument holder portion 40 moves in the axial direction with respect to the case 12, the click spring pressing portion 46 applies a pressing force to the click spring 60. The click spring 60 is a surface supported by the leg portions at both ends as described above. Since it is a push-type leaf spring, it will not be elastically deformed to the extent that it contacts the electrode pattern 72 of the circuit board 80 unless there is a certain pressing force.

As will be described later, the writing tool holder 40 fixes and holds the writing tool 8 by the action of the fixing rotation member 48. Therefore, if the writing tool 8 moves in the axial direction with respect to the case 12, the writing tool holder 40 is pivoted with respect to the case. Move in the direction. That is, the writing tool holder part 40 moves in the axial direction by pressing the lead, which is the tip, against the writing medium in which the writing tool 8 is fixed like an answer sheet on the desk. Thus, a pressing force can be applied to the click spring 60. At this time, as described above, the click spring 60 always urges the writing tool holder 40 to protrude toward the writing tip 18, so that the user can use the lead as a writing medium against this urging force. It is necessary to press it toward you. By pressing the lead against the writing medium with an appropriate pressing force, the click spring 60 can be elastically deformed and brought into contact with the electrode pattern 72 of the circuit board 80.

If the pressing force that is elastically deformed to such an extent that the click spring 60 contacts the electrode pattern 72 of the circuit board 80 is set as the pressing force threshold, the value has an intention to operate the timing device, not a user's intention to write. Is preferably set to a value that can be determined. For example, in the case of a pencil, the average writing pressure is said to be from 50 g to 100 g, and the recommended value of the inclination angle of the pencil with respect to the writing medium is said to be 50 degrees. Therefore, when the maximum writing pressure is 100 g and the inclination angle is 50 degrees, the magnitude of the axial component of the writing pressure writing instrument is about 77 g. In this example, if 77 g is set as the pressing force threshold value, the click spring 60 comes into contact with the electrode pattern 72 of the circuit board 80 with a pressing force exceeding the standard writing condition, and the operation as the switch unit is performed. The device is activated. Of course, the pressing force threshold value may be set to a value higher than 77 g in order to ensure safety within a range in which the user does not feel uncomfortable.

The spring constant of the click spring 60 as a face-pressing plate spring is set to be the pressing force threshold value. In this way, by setting the pressing force threshold to a value according to the user's intention to operate the timing device, it is possible to suppress erroneously operating the timing device against the user's intention.

FIG. 8 is a diagram for explaining a state when the tip of the writing instrument 8 is pushed by Δ against the urging force of the click spring. Here, the click spring 61 in an elastically deformed form is shown. The convex portion at the center of the click spring 61 that has been elastically deformed is in contact with the electrode pattern 72 of the circuit board 80. As a result, the electrode pattern 70-click spring 60-electrode pattern 72 is electrically short-circuited, and the switch portion is turned on. When the writing tool 8 is separated from the writing medium, the restoring force of the click spring 60 returns the tip of the writing tool 8 from the state of being pushed into the case 12 to the original state. If it returns, since the click spring 60 and the electrode pattern 72 will electrically isolate | separate, it will be in an OFF state as a switch part.

The fixing rotating member 48 of the writing instrument holder 40 has a function of allowing the hexagonal writing instrument 8 to be detachably inserted using the difference between the maximum outer dimension and the minimum outer dimension of the hexagonal writing instrument 8 and fixing after insertion. It is a member. The configuration and operation of the fixing rotation member 48 will be described with reference to FIGS. These drawings are cross-sectional views of the writing instrument 10 with a time measuring device cut along a plane perpendicular to the axial direction at the position of the tip of the writing tool holder 40 and viewed from the writing tip 18 side. FIG. 9 is a diagram showing a state in which the writing instrument 8 can freely move in the axial direction, and FIG. 10 is a diagram showing a state in which the writing instrument 8 is fixed by the fixing rotation member 48.

The fixing rotation member 48 is integrally attached to the holder main body 42, and has a wide diameter portion 50 having an inner diameter larger than the maximum outer dimension of the writing instrument 8, and a narrow diameter having an inner diameter smaller than the maximum outer dimension and larger than the minimum dimension. This is a metal ring-shaped member having a diameter portion 52. Of course, it may be made of plastic as long as it is not made of metal and has sufficient strength. Since the fixing rotation member 48 is integrally fixed and attached to the holder main body 42, the holder main body 42 is rotated around the axial direction by using the holder handle 44, so that the writing instrument 8 can be rotated around the axial direction. it can.

FIG. 9 is a diagram showing a state when the opposite sides of the cross section of the writing instrument 8 are aligned with the small diameter portion 52 of the fixing rotating member 48. In this state, since the movement of any ridge of the writing instrument 8 is not limited by the inner diameter shape of the fixing rotation member 48, the writing instrument 8 can freely move in the axial direction. Note that the writing tool 8 is restricted from rotating about its axis by a through hole guide function provided in the case 12. For this guiding function, the through hole may be a hexagonal through hole, and a part of the through hole may be a hexagonal cross-sectional hole.

FIG. 10 is a diagram illustrating a state in which the fixing rotation member 48 is rotated by 30 degrees around the axial direction from the state of FIG. 9, that is, by a half angle of a repetitive angular period of each side of the hexagon or each ridge. It is. In this case, since the rotation of the writing instrument 8 is restricted around the axial direction, a ridge facing the cross section of the writing instrument 8 is aligned with the small diameter portion 52. Since the inner diameter of the small-diameter portion 52 is smaller than the passing distance between the opposing ridges, which is the maximum external dimension of the writing instrument 8, the narrow-diameter portion 52 presses and deforms the opposing ridges of the writing instrument 8. Thereby, the writing instrument 8 is firmly fixed by the fixing rotation member 48.

Next, the electrical signal processing relationship of the writing instrument 10 with a timing device will be described. FIG. 11 is a block diagram showing the electrical signal processing relationship of the writing instrument 10 with a timekeeping device. Here, the control IC 84 includes an input / output port, a driver circuit, a clock oscillation circuit, and a power supply circuit, each of which is connected to the CPU, and shows a state where signal processing and control are performed integrally.

The input / output port includes a minute setting button 28, a second setting button 30, a pressing detection switch portion composed of a click spring 60 and

electrode patterns

70, 72, and a buzzer 88 not shown in FIG. Connected. In addition, it is good also as what connects the function selection button 26 which a user can select a function by manual operation. A long press reset circuit 82 that operates in response to a signal from the switch unit is also connected to the input / output port. The long press reset circuit 82 constitutes an electronic circuit that controls the operation of the writing instrument 10 with the time measuring device together with the control IC 84. Further, since the CPU is provided with a timing device function, the entire electric circuit shown in FIG. 11 constitutes the timing device.

Here, the buzzer 88 is a caution display used to notify the user of the user's writing instrument pressing, time-out of the timing device, and the like. For example, when the user operates the minute setting button 28 or the like or presses the writing instrument, the buzzer 88 outputs a warning sound during that time, and the buzzer 88 outputs a warning sound when the timing device times out. Instead of the buzzer 88, for example, a caution light that shines the writing tip 18 of the case 12 using a light emitting element or the like, or a caution vibration that vibrates the grip 22 using a vibration element or the like, or Note music such as a melody may be output from the case 12 using an electronic sound generator or the like.

When providing an electronic sound generator, in addition to the purpose of alerting, for example, a melody or the like may be output during an operation such as counting up or counting down.

Further, the clock oscillation circuit is connected to the crystal oscillator 86, and the power supply circuit is connected to the battery 90. The driver circuit is connected to the liquid crystal display 34.

FIG. 12 is a flowchart for explaining the operation of the writing instrument 10 with a timing device. Since the writing instrument 10 with a timing device uses a user's writing instrument pushing operation or the like as an operation operation or the like, the user's operation process is shown by a broken line in order to distinguish it from the operation of the electronic circuit such as the control IC 84 and the long press reset circuit 82. It is shown with a frame.

At the beginning of the electrical signal processing of the writing instrument 10 with a timing device, the electronic circuit that executes the control is in a standby state (S10). In the standby state, the timing function is in the initial state. In order to perform writing using the timing device, it is first determined which of the stopwatch function and the subtraction timer function is selected as the function selection (S12). Function selection is normally set in the stopwatch function, and is set in the control IC 84 so that when the minute setting button 28 or the second setting button 30 is operated, the stopwatch function is automatically prohibited and switched to the subtraction timer function. Has been. Therefore, it is determined here whether the minute setting button 28 or the second setting button 30 is not operated or is operated. When the function can be selected by operating the function selection button 26, the CPU acquires the state of the function selection button 26 through the input / output port and determines the state.

If it is determined in S12 that the subtraction timer function is not selected, the selected function is a stopwatch function (S14). In the standby state, the timekeeping function is in the initial state, so the stopwatch is in the state of 0 minute 0 seconds. Therefore, when the user presses the writing instrument (S16), the stopwatch function starts operating. The writing instrument pressing is an operation of pressing the core of the writing instrument 8 against a writing medium such as an answer sheet placed on a desk with a pressing force enough to activate the switch unit. Since the operation of the switch unit is set to be performed when the pressing force exceeds the pressing force threshold value, the writing tool pressing needs to have a pressing force larger than the writing pressure during normal writing.

When the writing instrument is pressed by the user, the switch unit is activated, and therefore, it is determined whether or not it is detected as a long pressing press (S18). The long press detection is detection of distinction of the state of the pressing force duration, and is determined by whether or not the writing instrument has been pushed in over a predetermined duration. For example, when the writing instrument pressing continues for 2 seconds or more, the user can determine that the long pressing has been pressed. If it is determined that the long press is detected, the process proceeds to S22 and the time count is reset. After resetting, the process returns to step S12 and the above procedure is repeated.

If the determination in S18 is negative, it is determined that the user has pressed a normal writing instrument rather than a long press, and the process proceeds to S20. In S20, the time-series state of the pressing force is determined, and whether the count-up of the stopwatch is started or stopped is performed according to the determination. The determination of the time series state of the indentation force may be by counting the number of indentation force detections, or by using the timing state immediately before the indentation detection, it is determined what processing the previous indentation detection is for. It is good also as what to do.

Specifically, when it is determined that the writing instrument is first pushed in from the standby state (S10) or the timekeeping reset (S22) state, the count-up is started. In other words, stopwatch timing starts. If it is determined that the writing instrument has been pressed next after the count-up has been started, the timing is stopped. In other words, the timing of the stopwatch temporarily stops there. Then, after it is determined that the writing instrument has been pushed in after the timing is stopped, the count-up is resumed. That is, the time count of the stopwatch is added to the time count immediately before the start time, and the count is counted up. In this way, the user's intention to operate by pushing the writing instrument is determined according to the order of detecting the pressing force, that is, the time-series state.

In this way, the stopwatch function reinterprets the user's writing instrument pushing operation into the operation intention of the timing device, and the operation of the timing device is controlled. FIG. 13 is a time chart showing the state. Here, the time is plotted on the horizontal axis, and the on / off state of the switch unit, the output state of the buzzer 88, and the display state of the liquid crystal display 34 are plotted on the vertical axis.

As shown in FIG. 13, when the switch unit detects the pushing force and is turned on, the buzzer 88 outputs a warning sound during that time. Then, as described in S20, when the long press is not detected, the liquid crystal display 34 starts counting up and stops counting according to the time series state of the pressing force detection. In the case of long press detection, the buzzer 88 outputs a caution sound at the beginning of pressing, and the buzzer outputs a caution sound again when timekeeping is reset.

Returning to FIG. 12 again, if it is determined in S12 that the function selection is the subtraction timer function, the process proceeds to S30. Then, a timer is set by a user operation (S32). Specifically, the minute setting button 28 is pressed by the user (S34), and thereby the time counting device counts up (S36). For example, to set the timer to 10 minutes, the minute setting button 28 may be pressed 10 times. Next, when the second setting is necessary, the second setting button 30 is pressed (S38), and thereby the second counting of the time measuring device is performed (S40).

For example, to set the timer for 100 seconds, since 100 seconds = 1 minute 40 seconds, the minute setting button 28 is pressed once to increase the minute count by 1, and then the second setting button 30 is pressed 40 times. If the long press is performed instead of the 40th press, the second count-up is continuously performed during the long press. Therefore, the long press may be stopped when the second count-up has advanced to 40. The long press operation can also be performed with the minute setting button 28.

When the timer setting is completed in this way, the timer function starts operating when the user presses the writing instrument (S42). Here, the writing instrument pressing is the same as the content described in S16.

When the writing instrument is pushed in, the time-series state of the pressing force is determined in S44, and the timer countdown is started or stopped according to the determination. The determination of the time-series state of the indentation force may be performed by counting the number of indentation force detections as described in S20, or by using the timing state immediately before the indentation detection, the previous indentation detection. May be used to determine what processing is being performed.

Specifically, when it is determined that the writing instrument has been pushed in for the first time from the timer setting state, the countdown of the timer is started. That is, the subtraction starts as time passes so that the timer indicates the remaining time. If it is determined that the writing instrument has been pressed next after the countdown is started, the countdown is stopped. That is, the timer subtraction is temporarily stopped there. Then, after the timer subtraction is stopped, if it is determined that the writing instrument has been pressed next, the countdown is resumed. In other words, the timer counts the remaining time immediately before the start time as a starting point and is subtracted from it. In this way, the user's intention to operate by pushing the writing instrument is determined according to the order of detecting the pressing force, that is, the time-series state.

Then, when the timer count is zero seconds, that is, when the remaining time runs out, the buzzer 88 outputs a warning sound to notify the user (S46). In order to stop the caution sound of the buzzer 88, the user may press the writing instrument (S48), and an automatic stop function may be provided to automatically stop the output of the buzzer 88 after a predetermined time has elapsed. (S52).

Thus, when the caution sound of the buzzer 88 stops (S50), the series of timer function operations ends, and the next process is selected by the user (S54). As the next process, in order to select to operate the timer again under the current setting conditions, the process returns to S42 and the writing instrument is pushed. In the above example, when the timer setting is set to 100 seconds, after S50, only by pressing the writing instrument, the timer starts counting down again with the remaining time set to 100 seconds. In this way, it is possible to repeatedly perform the writing work under the time limit of 100 seconds.

To select to change the timer setting as the next process, return to S32, reset the timer, and then press the writing tool again to start the countdown under the new timer setting. Can be made. Further, in order to select resetting as the next processing, the writing instrument push is long-pressed [S56]. As a result, the process proceeds to S22, a time reset is performed, the process returns to S12 again, and for example, a stopwatch function can be used.

In this way, even in the reset function, the operation of the timing device is controlled by reinterpreting the user's writing instrument pushing operation to the intention of operating the timing device. FIG. 14 is a time chart showing the state. Here, as in FIG. 13, the horizontal axis indicates the passage of time, and the vertical axis indicates the pressing operation of the minute setting button 28, the pressing operation of the second setting button 30, the on / off state of the switch unit, and the output state of the buzzer 88. The display states of the liquid crystal display 34 are respectively shown.

As shown in FIG. 14, when the minute setting button 28 is operated, when the second setting button 30 is operated, or when the switch portion is detected and turned on, the buzzer 88 is turned on. Meanwhile, a caution sound is output. As described in S40, the minute setting button 28 and the second setting button 30 can be operated by long pressing. In this case, the buzzer 88 continuously outputs a warning sound during the long pressing. Then, as described in S46, when the count reaches zero seconds, the buzzer 88 outputs a warning sound, and the buzzer 88 is careful until the detection of the writing instrument pressing described in S48 or the automatic stop function described in S52 is used. Continue to output sound.

Then, when the action of the series of timer functions is completed and the next process is performed as described in S56, when the writing instrument push-in is long pressed, the reset state is entered. The output method of the buzzer 88 in the reset state is the same as that described in FIG.

In the above, the switch portion is turned on / off depending on whether or not the click spring 60 and the

electrode patterns

70 and 72 of the circuit board 80 are in contact with each other. That is, it has been described that a contact-type switch unit is used. It is good also as what uses a non-contact-type switch part.

FIG. 15 and FIG. 16 are diagrams for explaining a structural example when a non-contact type switch unit is used. In these drawings, in the writing instrument 10 with a timing device, a portion centering on the writing instrument holder portion is extracted and shown. FIG. 15 is a diagram showing a state where the writing tool 8 (not shown) is not pushed in, and FIG. 16 is a diagram showing a state when the writing tool 8 is pushed.

Here, a recess 100 is provided on the outer periphery of the writing instrument holder 41, and a recess for accommodating the ball 102 and the pressing spring 104 is provided in the front case body 14 correspondingly. A coil spring 106 for biasing the writing tool holder 41 toward the writing tip 18 is disposed between the end 20 side end of the writing tool holder 41 and the rear case body 16. And the magnet 108 is attached to the terminal part 20 side of the writing instrument holder part 41, and the magnetic sensor 110 is provided in the circuit board 80 corresponding to this.

As shown in FIG. 15, in a state where the writing instrument 8 is not pushed into the case 12, the writing instrument holder 41 is pressed against the writing tip 18 by the biasing force of the coil spring 106. The ball 102 is in a state of being fitted into the recessed portion 100 of the writing instrument holder portion 41 by the pressing spring 104. That is, the writing instrument holder part 41 and the front case body 14 are in a locked state. Since the magnet 108 is away from the magnetic sensor 110, the magnetic sensor 110 is in an off state.

As shown in FIG. 16, when the writing instrument 8 is pushed toward the end portion 20 against the biasing force of the coil spring 106 and the pressing force increases to some extent, the ball 102 is separated from the indented portion 100. The pushing force corresponding to the amount of displacement when the ball 102 moves away from the indentation 100 and the locking of the writing instrument holder 41 and the front case body 14 is released is set to a predetermined pushing force threshold. By doing in this way, the writing tool holder part 41 and the front case body 14 remain in the locked state by the ball 102 at the pushing force below the pushing force threshold, and when the pushing force exceeds the pushing force threshold, the writing tool holder part 41 is terminated. It can be moved to the part 20 side.

Thus, when the pushing force exceeds the pushing force threshold, the writing instrument holder 41 moves to the end 20 side, and the magnet 108 comes close to the magnetic sensor 110 and turns on the magnetic sensor 110. By processing the output of the magnetic sensor 110 in the same manner as the output of the switch unit described in FIG. 11, the magnet 108 and the magnetic sensor 110 can be used as a non-contact type switch unit. In addition, it can replace with a magnet and a magnetic sensor, and can also be set as the non-contact-type switch part using a light emitting element and a light receiving element.

In the above description, the fixing rotary member 48 is used to fix the writing instrument 8 to the writing instrument holder 40. Instead of this, a cutting blade may be raised at the ridge portion of the hexagonal writing instrument 8, and the writing instrument 8 may be fixed with the cutting blade. FIG. 17 is a view for explaining the structure of an example in which a cutting blade 122 is provided at the tip of an extending member 121 extending from the writing instrument holder 120 to the writing tip 18 side. Here, a spiral cutting edge 122 is provided on the inner diameter side of the distal end portion of the extension member 121. The effective diameter of the helical cutting blade 122 is preferably set to be smaller than the maximum outer dimension of the hexagonal writing instrument 8 and larger than the minimum outer dimension. By doing in this way, the writing tool 8 can be bitten by the cutting blade 122 only at the ridge portion at the tip of the writing tool 8.

The outer shape of the writing instrument holder portion 120 is the same as that described with reference to FIG. 6 and the like, and includes a click spring pressing portion and the like. The holder handle is not necessary, and the case 12 is not provided with a guide for restricting the rotation of the hexagonal writing instrument 8 around the axis.

Accordingly, as shown by the arrow in FIG. 17, the hexagonal writing tool 8 is rotated in the axial direction from the end portion 20 side of the case 12 while being advanced toward the writing tip portion 18 side, so that the writing tool 8 is cut. The tip of the writing instrument 8 can be appropriately projected toward the writing tip 18 side of the case 12 while the blade 122 is biting in. That is, the cutting blade 122 of the writing instrument holder portion 120 functions as a so-called threading tap, and has a function of fixing and holding the writing instrument 8 while cutting the hollow 7 of the spiral screw at the edge of the writing instrument 8. According to this method, even if the writing instrument 8 is a round pencil, the helical screw is cut on the entire outer periphery, but the writing instrument 8 can be fixed and held.

In the above description, a hexagonal pencil has been mainly described as the writing instrument 8. For this purpose, the writing instrument holder part is configured as a writing instrument removable type. It can replace with this and can also be set as the structure which fixes a writing instrument holder part to a writing instrument. In this case, the writing tool holder portion may be firmly fixed to the writing tool in advance with an adhesive or a screw, and wrapped so that the front case body 14 and the rear case body 16 are supported so as to be movable in the axial direction. A holder handle is not required.

FIG. 18 is a view showing a writing instrument 130 with a timing device using a so-called mechanical pencil in which the lead 3 is drawn out by the operation of the knock unit 4 as the writing instrument 6. In the writing instrument 130 with the time measuring device, the cylinder part 5 of the writing instrument 6 is firmly fixed to the writing instrument holder part 132 by an adhesive, screwing or the like. When the lead 3 is pushed in, the writing instrument holder 132 moves in the axial direction, and the time measuring device is activated by the action of the switch described in FIGS. According to this method, it is possible to deal with various writing instruments.

The writing instrument with a timing device described in FIG. 1 and FIG. 18 is a type in which a case having a timing device, a writing instrument holder part, and a switch part is added to a commercially available writing instrument, and is widely applied to various commercially available writing instruments. Is possible. In this configuration, if a commercially available writing instrument is considered to be a core holding member that holds a writing core that performs writing, the writing instrument holder holds the core holding member and is axial with respect to the case. It moves, detects the movement with a switch part, and becomes a structure which operates a time measuring device.

1 In addition to the configuration described in FIG. 1 and FIG. 18, it can also be configured as a dedicated writing instrument. For example, a so-called ballpoint pen-type writing instrument with a timing device can be configured by using an ink holding cylinder portion having a ballpoint pen tip as a writing core at the tip as a core holding member. In addition, a pencil cylinder part having a lead as a writing lead at the tip and a knock part for feeding the lead at the end is used as a core holding member, so that a so-called mechanical pencil type writing device with a dedicated timing device is provided. You can configure the tool.

FIG. 19 is a diagram showing a configuration of the writing instrument 140 with a time measuring device having a core holding member that is an ink holding cylinder having a ballpoint pen tip as a writing core at the tip. Here, the tip of the ink holding cylinder part 142 is provided with a ballpoint nib 144 that is a writing core part that bleeds out the ink stored in the ink holding cylinder part 142 and performs writing on the writing target medium. A so-called replacement ball-point pen shaft that can be replaced as a whole when the ink in the portion 142 runs out is used as the core holding member. The ink holding cylinder portion 142 is a long and narrow plastic pipe that accommodates ink, and a convex outer peripheral portion 146 having a bulge is provided in the middle of the axial direction.

The front case body 152 and the rear case body 154 in the writing instrument 140 with the timing device in FIG. 19 are members that are combined to form a case, and are designed with a dedicated design that takes into account the overall design and the like. In the example of FIG. 19, there are two cases, but the case can be designed as one. Inside the case constituted by the front case body 152 and the rear case body 154, a liquid crystal display 34 for displaying time, a battery 90, a circuit board 80, a click spring 60, and the like are housed. An electrode pattern is provided at the end of the circuit board 80 facing the click spring 60, and constitutes a switch portion together with the click spring 60.

The writing instrument holder 156 is a member that has a function of holding the ink holding cylinder 142 and transmitting the movement to the click spring 60. The writing instrument holder portion 156 has an inner diameter that is slightly larger than the outer diameter of the ink holding cylinder portion 142, and a click spring pressing portion 158 is provided on the end portion 20 side of the outer shape. When the writing instrument holder 156 is combined with the ink holding cylinder 142, the writing tip 18 is disposed so that the writing tip end 18 abuts against the convex outer periphery 146 of the ink holding cylinder 142. As a result, the writing instrument holder portion 156 is disposed between the convex portion outer peripheral portion 146 and the click spring 60 so as to be movable in the axial direction.

Therefore, the click spring 60 can apply a biasing force in a direction in which the replacement ball-point pen shaft, which is a core holding member, protrudes toward the writing tip 18 side. Then, a pressing force is applied against the urging force to the ballpoint nib 144 that is the writing core, and the ink holding cylinder 142 together with the ballpoint nib 144 is relatively axially directed toward the distal end 20 side with respect to the case. The fact that it has moved can be detected by the switch part constituted by the click spring 60 and the electrode pattern at the end of the circuit board 80, and the time measuring device can be operated according to the detection. Since the operation of the timing device by the switch unit is the same as that described in FIG. 12 and the like, detailed description thereof is omitted.

When the ink stored in the ink holding cylinder 142 is exhausted, the cap provided on the writing tip 18 of the case can be removed, the ballpoint pen shaft can be pulled out, and replaced with a new ballpoint pen shaft. . In this way, a dedicated writing instrument 140 with a time measuring device using a replaceable ballpoint pen shaft can be configured.

FIG. 20 is a diagram showing a configuration of a writing instrument 160 with a time measuring device that can be applied even if the replacement ball-point pen shaft does not have an outer peripheral portion of the convex portion. Here, a push piece 166 and a click spring pressing portion 168 are provided at the end of the ink holding cylinder portion 143, and a click spring 60 and a circuit board 81 having an electrode pattern are disposed at the end of the case.

Therefore, similarly to the configuration described with reference to FIG. 19, the click spring 60 can apply a biasing force in a direction in which the replacement ball-point pen shaft, which is the core holding member, protrudes toward the writing tip 18 side. Then, a pressing force is applied against the urging force to the ballpoint nib 144 that is the writing core, and the ink holding cylinder 142 together with the ballpoint nib 144 is relatively axially directed toward the distal end 20 side with respect to the case. The fact that it has moved can be detected by the switch part constituted by the click spring 60 and the electrode pattern at the end of the circuit board 81, and the time measuring device can be operated in accordance with the detection. Since the operation of the timing device by the switch unit is the same as that described in FIG. 12 and the like, detailed description thereof is omitted.

FIG. 21 is a diagram showing a configuration of a writing instrument 170 with a timing device having a lead tube as a writing core portion at the tip and a pencil cylinder portion having a knock portion for feeding the lead at the end as a core holding member. is there. Here, the lead 174 is a standardized pencil lead having a thickness of about 0.5 mm, for example, and a length of about 60 mm.

The pencil cylinder portion 172 accommodates an appropriate number of nibs 174, and by operating the knock portion 176, one nib 174 is fed to the writing tip 18 side, and when the feeding is stopped, the pencil tip 174 is in that state. This is a long and narrow tube portion that incorporates a mechanism for fixing the position of one core tip 174. Therefore, in a state where the feeding is not performed, the core tip 174 moves integrally with the pencil cylinder portion 172. The knock part 176 is a member that can be moved forward and backward by a user operation, and by operating the mechanism built in the pencil cylinder part 172 by this advancement and retraction, one core tip 174 accommodated in the pencil cylinder part 172 is operated. This is a lead-out operation unit for feeding out the wire.

21. The front case body 178 and the rear case body 180 in the writing instrument 170 with a timing device in FIG. 21 are members that are combined to form a case, and are designed with a dedicated design in consideration of the overall design and the like. Similarly to the case described with reference to FIG. 19, two cases can be designed as a single case. Inside the case constituted by the front case body 178 and the rear case body 180, a liquid crystal display 34 for displaying time, a battery 90, a circuit board 80, a click spring 60, and the like are housed. An electrode pattern is provided at the end of the circuit board 80 facing the click spring 60, and constitutes a switch portion together with the click spring 60.

The click spring pressing portion 182 is a member that protrudes in the radial direction from the outer periphery of the pencil cylinder portion 172, protrudes in the axial direction, and faces the click spring 60.

Accordingly, similarly to the configuration described with reference to FIG. 19, the click spring 60 can apply a biasing force in a direction in which the pencil cylinder portion 172 that is the core portion holding member protrudes toward the writing tip portion 18 side. Then, a pressing force is applied to the tip 174 which is the writing core portion against the urging force, and the pencil cylinder portion 172 moves relative to the case in the axial direction relative to the case toward the end portion 20 side. The switch part comprised of the click spring 60 and the electrode pattern at the end of the circuit board 80 can be detected, and the timing device can be operated according to the detection. Since the operation of the timing device by the switch unit is the same as that described in FIG. 12 and the like, detailed description thereof is omitted.

When the nib 174 accommodated in the pencil cylinder part 172 runs out, for example, the knock part 176 is removed from the end of the pencil cylinder part 172, and a new nib 174 is replenished in the internal space of the pencil cylinder part 172. be able to. Thus, the writing instrument 170 with a dedicated timing device using the pencil cylinder portion 172 that can feed the lead 174 by operating the knock portion 176 can be configured.

19 to 21, the contact type configuration has been described as the switch unit. However, this may be a non-contact type switch unit using the magnet and the magnetic sensor described with reference to FIGS. 15 and 16. Moreover, it can also be set as the non-contact-type switch part using a light emitting element and a light receiving element.

The writing instrument with a timing device according to the present invention can be widely applied to pencils and other writing tools when writing with the timing device.

Claims

A core holding member for holding a writing core for writing;
A case that holds the core holding member so as to be movable in the axial direction, and has a gripping part on a part of the outer periphery;
A timing device provided in the case and having a display unit;
An urging means for applying an urging force in a direction in which the core holding member protrudes toward the writing tip side of the case;
A pressing force is applied to the writing core portion against the urging force, and the core holding member together with the writing core portion is axially directed toward the end side which is the end opposite to the writing tip side. A switch unit that detects relative movement and activates the timing device;
A writing instrument with a time measuring device.
In the writing instrument with a timing device according to claim 1,
The switch part
When the pressing force exceeds a predetermined pressing force threshold set in advance based on standard writing conditions for the writing pressure for pressing the writing core portion against the writing target medium and the writing angle of the writing core portion with respect to the writing target medium. A writing instrument with a timing device, which is characterized by operating.
In the writing instrument with a timing device according to claim 2,
The switch part
A writing instrument with a timing device, wherein the timing device is started, stopped, or reset based on a time-series state or duration state when the pressing force exceeds a pressing threshold.
In the writing instrument with a timing device according to claim 3,
The timing device
A writing instrument with a timing device, characterized by performing a visual caution display, an audible caution display, or a vibration caution display for at least one state when a start or stop or reset or subtraction timer becomes zero.
In the writing instrument with a timing device according to claim 1,
The writing instrument with a timing device, wherein the core holding member is an ink holding cylinder having a ballpoint pen tip as a writing core at the tip.
In the writing instrument with a timing device according to claim 1,
The writing instrument with a time measuring device, wherein the core holding member is a pencil cylinder having a tip tip as a writing lead portion and a knock portion for feeding the lead tip.
In the writing instrument with a timing device according to claim 1,
The core holding member has a hexagonal outer shape including a writing core at the center, and has a maximum outer dimension that is a passing distance between opposite ridges of the hexagon with respect to an axial cross section, and between the opposite sides of the hexagon. A hexagonal writing instrument having a minimum external dimension that is a parallel spacing distance of
A writing instrument holder for holding the core holding member, comprising a detachable holder for detachably inserting a hexagonal writing instrument and fixing it after insertion;
In a state where the hexagonal writing instrument is integrally fixed to the writing instrument holder part, the urging means applies an urging force in the direction of projecting the hexagonal writing instrument toward the case writing tip part side through the writing instrument holder part, and the switch part includes the writing instrument A writing instrument with a timing device, wherein the timing device is actuated by detecting that the hexagonal writing instrument has moved relative to the case in the axial direction through the holder portion toward the distal end side.
In the writing instrument with a timing device according to claim 7,
The writing instrument holder is
A holder body having an inner diameter larger than the maximum outer dimension of the hexagonal writing instrument;
A wide-diameter portion integrally attached to the holder body and having an inner diameter larger than the maximum outer dimension of the hexagonal writing instrument; and a narrow-diameter portion having an inner diameter smaller than the maximum outer dimension and larger than the minimum dimension; When aligning the opposite sides of the cross section of the square writing instrument to the small-diameter part, the hexagonal writing instrument can be inserted so as to be movable in the axial direction. A fixed rotating member that can be
A holder handle provided on the holder body and used to rotate the fixing rotary member around the axial direction together with the holder body;
A writing instrument with a timing device, characterized by comprising: