JPH0432313Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention utilizes a ballpoint pen whose pen tip can be protruded and retracted by moving the pen shaft forward and backward. This ballpoint pen is highly decorative and interesting and opens and closes in conjunction with the forward and backward movement of a pen shaft.

(Prior art) Conventionally, for example, when a push button or the like provided at the base end of the barrel is pressed, a protruding and retracting mechanism built into the barrel is activated, causing the nib of the pen barrel to protrude and retract. Many ballpoint pens are available that are configured to repeat.

(Problem that the invention aims to solve) However, most of these ballpoint pens are designed with emphasis on functionality such as ease of use, and it is difficult to provide ballpoint pens that are highly decorative and full of interest. There were very few.

(Means for Solving the Problems) Therefore, the present invention was devised to provide an interesting ballpoint pen that is highly decorative and fun to use. In a ballpoint pen in which the pen tip 10a can be protruded and retracted by moving the pen barrel 10 forward and backward, the barrel 1 constitutes a stem A3, and a plurality of petal pieces 25 are attached to the base end of the barrel 1. A plurality of leaves 6 are movably attached to form a flower part A1, and a plurality of leaves 6 are swingably attached to the tip of the shaft tube 1 to form a leaf part A2.
A protruding and retracting mechanism B, which is built into the barrel barrel 1 and allows the pen tip 10a of the pen barrel 10 to freely protrude and retract, is formed to operate in conjunction with the swinging motion of the leaf body 6. Then, a petal opening/closing mechanism C that swings the plurality of petal pieces 25 to freely open and close the flower part A1 is connected to the protruding/retracting mechanism B via the pen shaft 10, and the petals are opened and closed by moving the pen shaft 10 forward and backward. A means for activating mechanism C was adopted.

(Function) Thus, the leaf portion A2 is composed of a plurality of leaves 6 provided at the tip end of the shaft tube 1, and the leaves 6 are swingable relative to the shaft tube 1. The protruding and retracting mechanism B is operated by the swinging motion of the pen barrel 10, and the pen shaft 10 repeats the forward and backward movement. Further, the flower portion A1 is composed of a plurality of petal pieces 25 provided at the base end portion of the stem tube 1, and these petal pieces 25 swing relative to the stem tube 1 by the operation of the petal opening/closing mechanism C. The petal opening/closing mechanism C operates in conjunction with the protruding and retracting mechanism B via the pen shaft 10. That is, as the stem tube 1 moves back and forth, the petal pieces 25 swing and the flower portion A1 opens and closes.

(Example) The present invention will be described below with reference to illustrated examples.

A in the figure shows a ballpoint pen of the present invention, and this ballpoint pen A has a stem A3 composed of a substantially cylindrical barrel 1, and a plurality of petal pieces 25 at the base end portion (upper end portion) of the barrel 1. The flower part A1 is made up of a flower part A1 that is swingably attached to the leaf part A1, and the leaf part A2 is a leaf part A2 that is made up of a pair of leaves 6 that are swingably attached to the tip (lower end) of the shaft tube 1. , the whole is formed to have the shape of a flower (for example, a tulip). This ballpoint pen A has a pen barrel of 10
A protruding and retracting mechanism B is built in, which allows the pen tip 10a to be freely protruded and retracted by moving the pen forward and backward.
It is configured to operate by the swinging motion of the leaf body 6. Further, the ballpoint pen A has a built-in petal opening/closing mechanism C that is connected to the protrusion/retraction mechanism B via the pen shaft 10. That is, this petal opening/closing mechanism C is formed so that a plurality of petal pieces 25 swing in conjunction with the forward and backward movements of the pen shaft 10 (the protruding and retracting movements of the pen tip 10a), so that the flower part A1 can be freely opened and closed. is configured to do so.

The shaft tube 1 constituting the stem portion A3 has a mounting shaft portion 2 protruding at a predetermined position on the outer circumferential surface of its distal end, and a substantially elongated rectangular notch hole 3 is cut at a predetermined position approximately in the center thereof. A male threaded portion 4 is provided on the outer circumferential surface of the proximal end.
is provided, and a plurality of slotted notch grooves 5 parallel to the direction of the cylinder core are cut into the peripheral wall of the proximal end thereof.

The pair of leaves 6 constituting the leaf portion A2 have mounting holes 7 formed on both sides of the lower end thereof so that they can be attached to the mounting shaft portion 2 of the shaft tube 1, and can be freely inserted into the notch holes 3 of the shaft tube 1. A substantially triangular actuating piece 8 is provided protruding from the center portion, and the leaf body 6 is attached so as to be swingable with respect to the shaft tube 1 with the mounting shaft portion 2 as a fulcrum. That is, by simply pinching the pair of leaves 6 with your fingers, the actuating piece 8 of the leaves 6 presses the sliding member 15 toward the tip (downward) to reliably operate the protruding and retracting mechanism B. It has been made possible to do so. Note that one leaf body 6 is attached to the shaft tube 1.
The other leaf body 6 is formed so as to hold approximately half the circumference of the shaft cylinder 1.
It is formed so as to hold the remaining approximately half-circumference portion.

In the figure, 11 is a washer into which the tip of the pen barrel 10 is inserted so as to be locked with a locking protrusion protruding from the tip of the pen barrel 10, and 12 is a washer for the nib 10.
A spring that constantly applies an elastic force to the pen shaft 10 via the washer 11 so that the pen holder 10 is drawn in.
Reference numeral 13 denotes a substantially truncated conical tip tube that is screwed onto the tip of the shaft tube 1.

The protruding and retracting mechanism B includes a sliding member 15 into which the pen barrel 10 is inserted and which is slidable on the barrel barrel 1.
The proximal end portion of the pen shaft 10 is inserted so as to be locked with the locking protrusion protruding from the portion near the tip of the pen shaft 10, and is slidable freely within the shaft barrel 1, and furthermore, The elastic force of the spring 12 is applied via the pen shaft 10, and a cam member 16 is engaged with the sliding member 15, and a cam member 16, which is carved on the inner circumferential wall surface of the barrel barrel 1, is engaged with the cam member 16. It is composed of a locking groove part 17,
By sliding the tip of the sliding member 15 along the pen shaft 10, the pen tip 10a of the pen shaft 10 can be protruded and retracted via the cam member 16. That is, when the sliding member 15 slides toward the tip along the pen shaft 10, the cam member 16 is pressed by the sliding member 15 and slides along the locking groove 17, and the locking protrusion When the pen shaft 10 slides against the spring 12 and the cam member 16 is located at the lowest end, the cam member 16 is rotated by a predetermined angle by the locking groove 17 and the locking groove 17 is shallow. By locking the cam member 16 alternately in the groove and the deep groove, the pen tip 10a
Parts protrude and can be retracted. The protruding and retracting mechanism B is configured such that the sliding member 15 is pushed toward its tip (downward) by the lower end inclined edge of the actuating piece 8 of the leaf body 6 inserted into the shaft cylinder 1 through the notch hole 3. It is configured to operate by being
Note that the actuating piece 8 provided on each leaf 6 is connected to the pen shaft 10.
The actuating pieces 8 are arranged so as to sandwich the actuating pieces 8, and are designed to prevent the actuating pieces 8 from coming into contact with each other.

The petal opening/closing mechanism C is located at the base end (upper end) of the pen shaft 10.
is provided with an insertion hole 23 in the lower part, into which the
A sliding body 20 that can freely slide inside the shaft tube 1, a plurality of petal pieces 25 having protruding attachment pieces 26 that can be inserted into the notch groove 5 of the shaft tube 1 at the base end, and a plurality of petal pieces 25 formed on the top of the slide body 20. A sliding rod 30 whose lower end can be fitted into the fitting hole 22 and can freely slide inside the shaft cylinder 1; a spring 32 that constantly compresses elastically;
An insertion hole 36 through which the upper end portion of the sliding rod 30 can be inserted freely.
and a base end cover 35 having a female threaded part 37 that can be screwed into the male threaded part 4 of the shaft tube 1. A locking ball 27 having a diameter larger than the width of the notch groove 5 is connected to the tip of the attachment piece 26 of the petal piece 25, and this locking ball 27 connects to a plurality of locking portions formed on the sliding body 20 21 and a plurality of locking portions 31 formed on the sliding rod 30, each of the petal pieces 25 is supported so as to be able to swing freely. That is, the sliding body 20 and the sliding rod 30 slide within the shaft cylinder 1 in accordance with the forward and backward movement of the pen shaft 10 due to the operation of the protruding and retracting mechanism B, and at this time, the lower edge portion of the notch groove 5 is moved against the mounting piece 26. The entire petal piece 25 is configured to swing around a locking ball 27 held by the locking portion 21 and the locking portion 31 as a fulcrum.

Therefore, the petal opening/closing mechanism C is connected to the sliding body 20.
It is composed of a plurality of petal pieces 25, a sliding rod 30, a spring 32, and a base end lid 35, and a locking ball 27 is connected to the tip of the attachment piece 26 of the petal piece 25,
The locking ball 27 is held in a pinched manner by the locking portion 21 of the sliding body 20 and the locking portion 31 of the sliding rod 30, so that each of the petal pieces 25 is swingably supported. Therefore, the sliding body 20 and the sliding rod 30 slide within the shaft cylinder 1 in accordance with the movement of the pen shaft 10 back and forth due to the operation of the protruding and retracting mechanism B, and the lower edge portion of the notched groove 5 is attached to the mounting piece 26. The petal piece 25 as a whole can smoothly swing around the locking ball 27 as a fulcrum.

In the figure, 40 is a doll piece that is detachably attached to the upper end of the sliding rod 30 through a fitting hole 41. When the flower part A1 is in the closed state, the doll piece 40 I started to hide inside,
When the flower part A1 is in an open state, it is formed so as to appear above the flower part A1. Moreover, the flower part A1 moves up and down in accordance with the forward and backward movement of the pen shaft 10 due to the operation of the protruding and retracting mechanism B.
When the flower part A1 opens, it moves upward, and when the flower part A1 closes, it moves downward.

In addition, numeral 45 in the figure is a pen holder that can support ballpoint pen A in an upright position.
5 is composed of a substantially cylindrical tube portion 46 into which the tip of the ballpoint pen A can be inserted, and a substantially disk-shaped base portion 47 connected to the lower end of this tube portion 46. In other words, the pen holder 45 allows the ballpoint pen A to be easily supported in an upright position by simply inserting the tip of the ballpoint pen A into the tube 46, and is also ideal for using the ballpoint pen A as a decorative accessory. It has a pen holder of 45.

By the way, the specific configuration of the protruding and retracting mechanism B, the specific configuration of the petal opening/closing mechanism C, the specific shape, dimensions, and material of the stem tube 1, the specific shape, dimensions, and number of the leaves 6, and the specific configuration of the petal opening/closing mechanism C, The specific attachment means, material, specific shape, dimensions, number of petal pieces 25, specific attachment means to the shaft tube 1, material, etc. are not limited to those shown in the illustrations, and can be freely set as appropriate. It is.

The present invention is constructed as described above, and its use will now be described.

First, when the pair of leaves 6 are squeezed between fingers, the operating piece 8 of the leaves 6 presses the sliding member 15 against the elastic force of the spring 12 toward the tip of the barrel 1 (downward). Then, the sliding member 15 presses the cam member 16, and the cam member 16 slides inside the barrel 1 and rotates at predetermined angles to engage the deep groove portion of the locking groove 17 on the inner circumferential wall of the barrel 1. The pen shaft 10 moves forward and backward together with the cam member 16, and the pen tip 10a repeatedly protrudes and retracts.

When the pen tip 10a is in the retracted state, the sliding member 15 presses the actuating piece 8 from below to swing the pair of leaves 6, so that the leaf A2 is in an open state.

The base end (upper end) of the pen shaft 10 causes the sliding body 20 and the sliding rod 30 to slide upward against the elastic force of the spring 32, and the petal pieces 25 each utilize gravity. The flower part A1 will be in an open state. At this time, the doll piece 40 comes to appear above the flower part A1.

Further, when the pen tip 10a is in the protruding state, the pressure from the lower part of the actuating piece 8 by the sliding member 15 is released, and the leaf portion A2 is in the closed state. Moreover, the pressure on the sliding body 20 and the sliding rod 30 by the pen shaft 10 is released, the sliding body 20 and the sliding rod 30 are slid downward by the elastic force of the spring 32, and the petal pieces 25 are respectively It contacts the lower edge portion of the notch groove 5 and swings, and the flower portion A1 is in a closed state. At this time, the doll piece 40 comes to be hidden within the flower part A1.

(Effect of the invention) Accordingly, the present invention provides a ballpoint pen in which the pen tip 10a can be freely protruded and retracted by the forward and backward movement of the pen shaft 10. Multiple petal pieces 25 at the base end of
is attached swingably to form the flower part A1, and the shaft tube 1
A plurality of leaves 6 are swingably attached to the side of the tip to form a leaf part A2, which is built into the barrel 1 and allows the pen tip 10a of the pen barrel 10 to protrude and retract freely. The mechanism B is formed to operate in conjunction with the swinging motion of the leaf body 6, and the petal opening/closing mechanism C, which swings the plurality of petal pieces 25 to freely open and close the flower part A1, protrudes and retracts the mechanism B. The petal opening/closing mechanism C is connected to the pen barrel 10 through the pen barrel 10, and the petal opening/closing mechanism C is operated by the forward and backward movements of the pen barrel 10, so that the base end portion of the barrel tube 1, which becomes the stem portion A3, is made up of a plurality of petal pieces 25. A flower part A1 is provided, and a leaf part A2 consisting of a plurality of leaves 6 is provided near the tip of the barrel 1, so that the entire ballpoint pen A can be formed to have the shape of a flower, making it fun to use. This is an interesting ballpoint pen A. Moreover, it has excellent decorative properties that can create a gorgeous atmosphere, and can be used as decorative accessories. Therefore, in a stationery department, etc., the ballpoint pen A stands out and is very useful for sales promotion.

In particular, the protruding and retracting mechanism B can be activated by a simple operation of swinging the leaf 6, and the pen tip 10a of the pen shaft 10 can be freely protruded and retracted. The petal opening/closing mechanism C is activated by utilizing the forward and backward movements of the pen shaft 10, and the plurality of petal pieces 25 are reliably swung to freely open and close the flower part A1.

[Brief explanation of drawings]

The drawings illustrate the present invention; Fig. 1 is a partially cutaway exploded perspective view, Fig. 2 is a sectional view with the pen tip protruding, and Fig. 3 is a cross-sectional view with the pen tip retracted. FIG. A...Ballpoint pen, A1...Flower part, A2...Leaf part, A3...Stem part, B...Protrusion, retraction mechanism,
C... Petal opening/closing mechanism, 1... Shaft tube, 2... Mounting shaft section, 3... Notch hole, 4... Male screw section, 5... Notch groove, 6... Leaf body, 7... Mounting hole , 8... Actuation piece, 10... Pen shaft, 10a... Pen tip, 11...
... Washer, 12 ... Spring, 13 ... Tip tube, 15 ... Sliding member, 16 ... Cam member, 17
...Latching groove portion, 20...Sliding body, 21...Locking portion, 22...Fitting hole, 23...Insertion hole, 25...
Petal piece, 26... Mounting piece, 27... Locking ball, 3
0... Sliding rod, 31... Locking part, 32... Spring, 35... Base end cover, 36... Insertion hole, 37
... Female screw part, 40 ... Doll piece, 41 ... Fitting hole, 45 ... Pen holder, 46 ... Cylinder part, 47 ...
Daibu.

Claims (1)

[Scope of utility model registration request] In a ballpoint pen whose pen tip can be freely protruded and retracted by the movement of the pen shaft back and forth, the stem is made up of a barrel, and a plurality of petal pieces are swingably attached to the base end of the barrel to form a flower. A plurality of leaves are swingably attached to the tip of the barrel to form the leaf, and a protrusion is built into the barrel to allow the nib of the pen barrel to protrude and retract freely. The retraction mechanism is formed to operate in conjunction with the swinging motion of the leaf body, and the petal opening/closing mechanism, which swings the plurality of petal pieces to freely open and close the flower part, causes the pen shaft to protrude and retract. A ballpoint pen characterized in that the petal opening/closing mechanism is configured to be connected to each other via a pen shaft so that the petal opening/closing mechanism is operated by the advancing and retreating movement of the pen shaft.