JP2007001219A - Knock type writing tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a knock type writing tool which can sufficiently satisfy a playing mind by changing various figures on every clip operation, has no need to uselessly enlarge the dimension of the outer diameter of an outer cylinder, and is ease of use. <P>SOLUTION: A hollow dome part 5 is integrally provided on the upper end part of an outer cylinder 2, and a displaying plate on which drawings such as characters and picture patterns are displayed is freely rotatably pivoted in this dome part 5. At the same time, a rotatably driving mechanism 7 for rotatably driving the displaying plate 6 is arranged by linking a slide operation of a clip part 3, and a see-through window 8 for observing the drawings on the displaying plate 6 is formed on a part on the peripheral face of the dome part 5. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a knock-type writing instrument in which a figure such as a character or a picture is rotated and displayed in response to a knocking operation.

  In general, a knock-type writing instrument such as a pole pen or a mechanical pencil has an outer cylinder that accommodates a writing medium such as a refill or a pencil lead, and the writing tip of the writing medium is projected and retracted from the distal end of the outer cylinder inside the outer cylinder. A feeding mechanism is provided, and a knock operation unit for operating the feeding mechanism is provided on the outer peripheral portion of the outer cylinder. Then, by knocking the knock operation unit, the feeding mechanism is interlocked accordingly, and the writing tip of the writing medium is projected and retracted from the distal end of the outer cylinder.

  By the way, in such a knock-type writing instrument, what printed the figure, such as a character and a pattern, on the surface of an outer cylinder is conventionally provided. However, such a simple graphic print does not attract the interest of a user such as a child because the display form does not change, and does not arouse playfulness.

  Therefore, in the conventional art, in the knock-type writing instrument, a rotating drum displaying characters, patterns and the like inside the outer cylinder and a rotation driving mechanism for driving the rotating drum are arranged, and a part of the outer cylinder is seen through. A window is provided, and each time the knock operation section is knocked, the rotation drive mechanism rotates the rotating drum at a constant angle accordingly to observe the change of the figure through the fluoroscopic window. It has been proposed (see, for example, Patent Document 1).

  In another conventional technique, instead of providing a rotating drum, a figure is displayed on a ballpoint pen refill disposed in the outer cylinder, and the refill is driven by a rotation driving mechanism provided in the outer cylinder. The thing is also proposed (for example, refer patent document 2).

JP 2001-219689 A JP 2001-341492 A

  By the way, in any conventional knock-type writing instrument described in Patent Documents 1 and 2, the following problems still remain.

(1) Since the conventional drum has a rotating drum or refill displaying a figure inside the outer cylinder that accommodates the writing medium, the outside of the rotating drum or refill that displays the figure depending on the outer diameter of the outer cylinder. Diameter dimension is limited. That is, since the outer diameter of the rotating drum cannot be increased beyond the outer diameter of the outer cylinder, the size of the figure displayed on the rotating drum and the refill is restricted. For this reason, not only the displayed figure becomes relatively small, but also the expression form of the figure is restricted, so that it is difficult to sufficiently satisfy various playful feelings.

(2) Since the rotary drum and refill and the rotary drive mechanism for rotating these are arranged inside the outer cylinder, the outer diameter of the outer cylinder must inevitably be larger than that of a normal one. Absent. For this reason, it is easy to impair the original writing function. That is, when using a knock type writing instrument, the outer cylinder is gripped. However, if the outer cylinder is thick, it is difficult to be familiar with the hand and the usability is poor.

(3) If the outer diameter of the outer cylinder is set to the same size as that of a normal one, not only will it be difficult to store the rotary drive mechanism in the outer cylinder, but also the rotating drum and refill in the outer cylinder The displayed graphic must be small, and as a result, it is difficult to see the graphic change.

  The present invention has been made in view of the circumstances as described above, and various figures can be changed each time a clip operation is performed, so that the playfulness can be satisfactorily satisfied. An object is to provide a knock-type writing instrument that does not need to be large and is easy to use.

  In order to achieve the above object, the knock type writing instrument of the present invention has an outer cylinder that accommodates a writing medium, and a feeding mechanism that causes the leading end of the writing medium to protrude from the leading end of the outer cylinder inside the outer cylinder. And a knock-type writing instrument provided with a knock operation portion for operating the feeding mechanism on an outer peripheral portion of the outer cylinder, wherein a hollow dome portion is integrally provided at an upper end portion of the outer cylinder. In addition, a display board on which graphics such as letters and pictures are displayed is rotatably supported inside the dome, and the display board is rotated in conjunction with the operation of the knock operation section. The gist of the invention is that a mechanism is disposed, and a see-through window for observing the graphic of the display plate is formed on a part of the peripheral surface of the dome.

  According to the knock-type writing instrument of the present invention, a hollow dome is integrally provided at the upper end of the outer cylinder that accommodates the writing medium, and a display board on which graphics such as characters and patterns are displayed inside the dome. Since the rotation drive mechanism is arranged, the size of the figure displayed on the display board is not restricted by the outer diameter of the outer cylinder. Therefore, various graphic expression forms can be adopted, and playfulness can be sufficiently satisfied by observing the rotational change of the graphic through the see-through window of the dome while knocking the knock operation unit. In addition, since the outer diameter of the outer cylinder does not increase as in the prior art, the original writing function is not impaired. That is, even when the outer cylinder is gripped when using the knock type writing instrument, the outer cylinder remains slim, so it is easy to become familiar with the hand and is easy to use.

  In the present invention, the rotation drive mechanism is rotatably supported by pin gears having pin portions formed at a plurality of locations along the circumferential direction, and the display plate is attached to the pin gears. A gear drive member having the characteristics is provided so as to be slidable along the axial direction of the outer cylinder. The gear drive member has a pressing piece and a pin for pressing down the pin portion facing the pin portion forming side of the pin gear. When a push-up piece that pushes up the portion is formed and this gear drive member is connected to the knock operation portion or the feed mechanism, the knock operation is performed even though the rotational drive mechanism has a relatively simple configuration. The display board on which figures such as characters and pictures are displayed can be smoothly and reliably rotated according to the operation of the unit.

  In the present invention, a clip portion is slidably provided along the axial direction on the outer peripheral upper portion of the outer cylinder, and when this clip portion is also used as the knock operation portion, it is provided slidably. By operating the clip part, both the feeding mechanism and the rotation drive mechanism can be operated, so there is no need to provide a separate knock operation part for operating each mechanism other than the clip, and the entire writing instrument can be configured. It can be simplified.

  Next, the best mode for carrying out the present invention will be described.

  FIG. 1 is a front view showing the entire knock-type writing instrument according to an embodiment of the present invention, FIG. 2 is a right side view of the writing instrument with a part cut away, and FIG. 3 is provided in the dome portion of the writing instrument. 4 is a front sectional view showing the display board and the rotation driving mechanism, FIG. 4 is a right side sectional view showing the display board and the rotation driving mechanism provided in the dome portion of the writing instrument, and FIG. 5 is a display provided in the dome portion of the writing instrument. It is a left side sectional view showing a board and a rotation drive mechanism.

  The knock-type writing instrument 1 of this embodiment is applied as a ballpoint pen, and has an outer cylinder 2 that accommodates a writing medium such as a refill, and the outer cylinder 2 has an inside from the front end of the outer cylinder 2. A feeding mechanism (not shown) for moving the writing tip of the writing medium in and out is provided.

  In addition, a clip portion 3 is slidably provided along the axial direction on the outer peripheral upper portion of the outer cylinder 2, and this clip portion 3 is a gear drive member constituting a rotation drive mechanism 7 to be described later in the outer cylinder 2. In addition to being integrally connected to the lower end of 13, it is also linked to the feeding mechanism. Therefore, the clip portion 3 is also used as a knock operation portion for operating both the feeding mechanism and the rotation drive mechanism 7 in addition to the original clip action.

  A hollow dome portion 5 having a substantially spherical appearance is integrally provided at the upper end portion of the outer cylinder 2. That is, the dome part 5 is formed by integrally joining the hemispherical front part 5a and rear part 5b when assembled, and the dome part 5 is integrally fitted to the upper end of the outer cylinder 2. Has been. The shape of the dome portion 5 is not limited to the spherical shape as in this embodiment, and may be a polyhedron.

  A display plate 6 is provided inside the dome portion 5, and a rotation drive mechanism 7 that rotates the display plate 6 in conjunction with the operation of the clip portion 3 is disposed. Further, a see-through window 8 for observing the figure of the display board 6 is formed at a location facing the display board 6 on the peripheral surface of the dome portion 5. The see-through window 8 is made of, for example, a transparent resin, and is configured to bulge back and forth so as to function as a magnifying lens.

  On the display board 6, graphics such as characters and pictures are sequentially displayed along the circumferential direction. Here, as an example, the letters A to F are displayed, but various designs, photographs, and the like can also be displayed. In addition, it is possible to print a figure directly on the display board 6 or use a photographic film on which a photograph is printed as the display board 6 itself.

  The rotation drive mechanism 7 includes a pin gear 11, a support shaft 12 that rotatably supports the pin gear 11, a gear drive member 13 that rotates the pin gear 11, and a return that returns the gear drive member 13 to the original position. It is constituted by a spring 14.

  The pin gear 11 is formed with pin portions 11 a protruding in the axial direction of the support shaft 12 at a plurality of locations along the circumferential direction, and the display plate 6 is fixed to the pin gear 11. Further, in this case, the pin portions 11a are formed in even multiples so as to always face each other across the center of the display panel 6.

  The support shaft 12 is composed of a pair of support cylindrical portions 12a and 12b protruding from the front portion 5a and the rear portion 5b of the dome portion 5 so as to be orthogonal to the sliding direction of the gear drive member 13, The distal end of the support cylindrical portion 12b is inserted into the display plate 6 and the pin gear 11, and the distal end of the insertion portion is fitted into the other support cylinder 12a.

  The gear drive member 13 is provided to be slidable along the axial direction of the outer cylinder 2. This gear drive member 13 has flexibility, and its upper part is branched in parallel to the left and right to form branch parts 13a and 13b. The upper end part of each of the branch parts 13a and 13b is shown in FIG. And as shown in FIG. 5, the pressing piece 13c which pushes down the pin part 11a of the pin gear 11, and the pushing-up piece 13d which pushes up the pin part 11a are each formed.

  In this case, the pressing piece 13c formed in one branch part 13a is formed in the inclined surface where the upper surface inclined downward, and the bottom face is formed in the plane. Further, the push-up piece 13d formed on the other branch portion 13b has an upper surface formed in a flat surface and a bottom surface formed in an inclined surface inclined downward. In addition, the length of the branching portion 13a having the pressing piece 13c is the branching portion 13b having the pressing piece 13d so that the pressing piece 13c is positioned slightly above the outer diameter of one pin portion 11a than the pressing piece 13d. It is set to be longer than the length of.

  Furthermore, the upper end of the return spring 14 is hooked on the support shaft 12, and the lower end is hooked on a spring stopper 13 e formed on the gear drive member 13.

  In the above configuration, when the knocking operation of releasing the hand after pulling down the clip portion 3 is repeated, the writing tip of the writing medium appears and disappears from the distal end of the outer cylinder 2 by a feeding mechanism (not shown) in the outer cylinder 2. Since the operation in this case is known as a knock-type writing instrument, detailed description thereof is omitted.

  Next, paying attention to the operation when the display plate 6 is rotated, the gear drive member 13 is pulled down against the spring force of the return spring 14 in conjunction with pulling down the clip portion 3. Accordingly, the bottom surface of the pressing piece 13c of the gear drive member 13 is hooked on the pin portion 11a below it, so that the display board 6 is rotated clockwise in FIG. 3, while the bottom surface of the pressing piece 13d is inclined. Therefore, it moves over the lower pin portion 11a.

  Subsequently, when the hand is released from the clip portion 3, the gear driving member 13 is pulled up by the spring force of the return spring 14 of a feeding mechanism (not shown). Along with this, since the upper surface of the pressing piece 13c is inclined, the pressing piece 13c gets over the pin portion 11a above it and is moved upward, while the upper surface of the pressing piece 13d is caught by the pin portion 11a above it. Is rotated clockwise in FIG. Therefore, the display board 6 is rotated by an angle corresponding to two pitches in the circumferential direction of the pin portion 11a by a single knocking operation of releasing the hand after the clip portion 3 is pulled down.

  Thus, in the knock type writing instrument of this embodiment, the hollow dome portion 5 is integrally provided at the upper end portion of the outer cylinder 2 that accommodates the writing medium, and characters, patterns, etc. are provided inside the dome portion 5. Since the display board 6 on which the graphic is displayed and the rotation drive mechanism 7 that rotationally drives the display board 6 are arranged, the size of the figure that changes in rotation is restricted by the outer diameter of the outer cylinder 2. Not receive. For this reason, various graphic expression forms can be employed.

  If the display board 6 is observed through the see-through window 8 of the dome part 5, the display board 6 in the dome part 5 rotates in conjunction with this operation every time the clip part 3 is knocked. Since it changes, it can fully satisfy playfulness such as children.

  Moreover, since the outer diameter of the outer cylinder 2 does not increase as in the prior art, the original writing function is not impaired. That is, even when the outer cylinder 2 is gripped when using the knock-type writing instrument, the outer cylinder 2 is slim, so it is easy to become familiar with the hand and is easy to use.

  Furthermore, in this embodiment, although the rotation drive mechanism 7 has a relatively simple configuration, the display board 6 on which graphics such as characters and patterns are displayed smoothly and smoothly in response to the knocking operation of the clip unit 3 is provided. Since it can be reliably rotated, the occurrence of failure can be reduced.

  In the above-described embodiment, the clip portion 3 is provided so as to be slidable along the axial direction of the outer periphery, and the clip portion 3 is directly connected to the gear driving member 13. The clip portion 3 is fixed to the outer cylinder 2 and is provided with a dedicated knock operating portion for operating the feeding mechanism, and the gear driving member 13 is integrally connected to the slide member of the feeding mechanism, so that the knock operating portion 3 It is also possible to adopt a configuration in which the display plate 6 is rotated by sliding the gear driving member 13 in conjunction with the sliding member of the feeding mechanism sliding in the outer cylinder 2 in response to the knocking operation.

  In this embodiment, the return spring 14 for returning the gear drive member 13 to the original position is provided in the dome portion 5. However, the return spring 14 is omitted and the spring force of the return spring provided in the feeding mechanism is provided. It is also possible to use a configuration in which the gear drive member 13 is returned to the original position by using.

  Further, the present invention is not limited to the configurations described in the above embodiments and modifications, and various modifications can be made without departing from the spirit of the present invention.

  Furthermore, although this embodiment demonstrated the case where it applied to a ball-point pen as a knock type writing instrument, this invention is not limited to this, It can apply also to a mechanical pen.

  As described above, according to the knock-type writing instrument of the present invention, the hollow dome is integrally provided at the upper end of the outer cylinder that stores the writing medium, and graphics such as characters and patterns are displayed inside the dome. Since the display panel and the rotational drive mechanism are arranged, the size of the graphic displayed on the display board is not restricted by the outer diameter of the outer cylinder. Therefore, various graphic expression forms can be adopted, and playfulness can be sufficiently satisfied by observing the rotational change of the graphic through the see-through window of the dome while knocking the knock operation unit. In addition, since the outer diameter of the outer cylinder does not increase as in the prior art, the original writing function is not impaired. That is, even when the outer cylinder is gripped when using the knock type writing instrument, the outer cylinder remains slim, so it is easy to become familiar with the hand and is easy to use.

  In addition, the rotation drive mechanism is rotatably supported by pin gears having pin portions formed at a plurality of locations along the circumferential direction, and the display plate is attached to the pin gears. A gear drive member having a slidable portion along the axial direction of the outer cylinder is provided, and the gear drive member has a pressing piece and a pin portion that face the pin portion forming side of the pin gear and push down the pin portion. When the push-up piece to be pushed up is formed together and this gear drive member is connected to the knock operation part or the feeding mechanism, the rotation drive mechanism has a relatively simple structure, but the knock operation part It is possible to smoothly and reliably rotate a display board on which graphics such as letters and pictures are displayed according to the operation.

  Further, a clip portion is slidably provided along the axial direction on the outer peripheral upper portion of the outer cylinder, and when the clip portion is also used as the knock operation portion, the slidably provided clip Since both the feeding mechanism and the rotation drive mechanism can be operated by operating the unit, there is no need to provide a separate knock operation unit for operating each mechanism other than the clip, simplifying the overall configuration of the writing instrument can do.

It is a front view which shows the whole knock type writing instrument in embodiment of this invention. It is a right view which cuts off the upper part of the writing instrument partially. It is front sectional drawing which shows the display board and rotation drive mechanism which were provided in the dome part of the writing instrument. It is right side sectional drawing which shows the display board and rotation drive mechanism which were provided in the dome part of the writing instrument. It is left side sectional drawing which shows the display board and rotation drive mechanism which were provided in the dome part of the writing instrument.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Knock-type writing instrument 2 Outer cylinder 3 Clip part (knock operation part)
5 Dome part 5a Front part 5b Rear part 6 Display board 7 Rotation drive mechanism 8 Transparent window 11 Pin gear 11a Pin part 12 Support shaft 13 Gear drive member 13a Branch part 13b Branch part 13c Push-down piece 13d Push-up piece 13e Spring stopper 14 Return spring

Claims (3)

The outer cylinder is provided with an outer cylinder for storing a writing medium, and a feeding mechanism is provided in the outer cylinder to project and retract the tip of the writing medium from a front end opening of the outer cylinder. A knock type writing instrument provided with a knock operation unit for operating the mechanism,
A hollow dome is integrally provided at the upper end of the outer cylinder, and a display board on which a graphic such as a character or a picture is rotatably supported is supported inside the dome, and the knock operation is performed. A rotation drive mechanism for rotating the display plate in conjunction with the operation of the display unit is disposed, and a see-through window for observing the graphic of the display plate is formed on a part of the peripheral surface of the dome unit. Knock-type writing instrument.   In the rotation drive mechanism, a pin gear having pin portions formed at a plurality of locations along the circumferential direction is rotatably supported, and the display plate is attached to the pin gear, and a flexible gear. A drive member is provided so as to be slidable along the axial direction of the outer cylinder. The gear drive member faces the pin portion forming side of the pin gear and pushes down the pin portion and pushes up the pin portion. The knock type writing instrument according to claim 1, wherein the pieces are formed together, and the gear driving member is connected to the knock operating portion or the feeding mechanism.   The knock type writing instrument according to claim 1 or 2, wherein a clip portion is slidably provided along an axial direction on an outer peripheral upper portion of the outer cylinder, and the clip portion is also used as the knock operation portion.

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