JPH072235Y2 - Knock type writing instrument - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a knock-type writing instrument having an advertisement function.

[Prior art and its problems]

There are many advertising media, but writing instruments are also given this function. In particular, in a knock-type writing instrument in which the pen body appears and disappears by the knock operation, if the company name, product name, etc. change sequentially with each knock operation and are displayed from the window hole formed in the barrel, it becomes interesting. It is possible to get rich and large advertising effect.

By the way, in this type of knock-type writing instrument, the pen body is projected and retracted from the front end of the tip of the barrel by the knock rotation mechanism. That is, when the knocking operation is performed, the knocking member advances the rotor, which causes the protrusion of the rotor to advance along the cam groove formed on the inner wall of the shaft cylinder to cause the pen body to protrude from the tip.
At the end of the knock, the rotor rotates by a predetermined angle and engages with the leading edge of the cam groove on the inner wall of the barrel to enable writing. Then, when the knocking operation is performed again from this state, the rotor rotates by a predetermined angle, the protrusion of the rotor retracts along the cam groove, and the pen body retracts into the tip opening. The rear end of the display cylinder is fixed to the rotor, which is one of the components of the knock rotation mechanism, and the advertisement characters written in the axial direction at the rotation angle intervals are attached to the display cylinder extending forward from the rotor. The display is changed sequentially from the elongated window formed in the cylinder. That is, the knock rotation mechanism including the knock member, the rotor, the cam groove on the inner wall of the shaft cylinder, and the display cylinder are arranged in a so-called series, and the display cylinder is arranged in front of the knock rotation mechanism. Therefore, the position of the window hole in which the advertising letters and the like are displayed is limited to the front portion of the barrel.

[Purpose of device]

Therefore, the present invention is based on a knock type in which the position of the window hole for displaying the advertising characters is not limited to the front part of the shaft cylinder, but can be displayed from the rear part of the shaft cylinder, for example, the window hole provided in the clip. The purpose is to provide a writing instrument.

[Constitution of the device and its action]

According to the configuration of the present invention, when a knocking operation is performed, the knocking mechanism causes the pen body to project and retract from the tip of the tip of the barrel, and the display barrel fixed to the rotor rotates by a predetermined angle. In a knock-type writing instrument in which advertisement characters written in the axial direction at intervals of 10 are sequentially displayed from the window hole formed in the shaft cylinder, the cam cylinder having the cam groove in which the protrusion of the rotor slides is separated from the shaft cylinder. It is characterized in that it is fixed in a concentric manner with a space between the shaft cylinder and the cam cylinder, and at least the rear portion of the display cylinder is arranged in the gap between the shaft cylinder and the cam cylinder.

That is, the knock rotation mechanism is composed of a knock member, a rotor, and a cam barrel, and the cam barrel is fixed concentrically with the shaft barrel with a gap, and at least the rear portion of the display barrel is arranged in this gap. Therefore, the knock rotation mechanism and at least the rear portion of the display cylinder are arranged in a so-called parallel manner. Therefore, the position of the window hole in which the advertising letters and the like are displayed is not limited to the front portion of the barrel, and the advertising letters and the like can be displayed in the rear portion of the barrel. It becomes possible to display advertising characters and the like on.

〔Example〕

The present invention will be described in detail below with reference to the embodiments shown in the drawings.

FIG. 1 shows a front view of a knock type ballpoint pen according to the present invention. As shown in FIG. 2, an axially long window hole 11 is bored in the rear part of the barrel 1 and a tip opening is provided. The front end 12 is screwed. Further, the clip 13 is also provided with a second window hole 14 coinciding with the window hole 11. A ball-point pen refill 2 is housed in the barrel 1 so that it can move back and forth.
It is biased backwards by 21. The rear end of the ball-point pen refill 2 is received by the rotor 3, and three protrusions 31 are formed on the peripheral surface of the rotor 3.

As shown in FIG. 3, the cam cylinder 6 has three deep cam grooves 61 and three shallow cam grooves 62 alternately formed on the inner peripheral surface thereof at equal intervals in the axial direction, that is, at 60 ° C. intervals. ing. This cam cylinder 6
Are concentrically fixed to the shaft cylinder 1 via a connecting cylinder 63, and a gap 64 is formed between the cam cylinder 6 and the shaft cylinder 1. The protrusion 31 of the rotor 3 slides along the three deep cam grooves 61 formed on the inner wall of the cam barrel 6. The knock member 4 is biased rearward by a knock spring 42, and the rear end of the knock member 4 is covered with a knock cover 43. The knock member 4 has six pushers 41 on its tip surface as shown in FIG. Has been drilled. The pusher 41 is adapted to move back and forth along the deep cam groove 61 and the shallow cam groove 62 of the cam barrel 6. That is, the knock member 4, the rotor 3, and the cam barrel 6 constitute a knock rotation mechanism.

As shown in FIG. 5, the display cylinder 5 has six kinds of characters for advertising such as company name and product name written in the axial direction. The angular interval of these characters is 60 degrees. There
The distance between the deep cam groove 61 and the shallow cam groove 62 is equal.
The display cylinder 5 is fixed to the rotor 3 and rotates together with the rotor 3, but is disposed in the gap 64 between the shaft cylinder 1 and the cam cylinder 6. That is, the display cylinder 5 is arranged outside the knock rotation mechanism. Then, the characters for advertisement of the display tube 5 are displayed through the window hole 11 of the shaft tube 1 and the second window hole 14 of the clip 13.

Then, when not in use, the pen body 22 is immersed in the front opening 12, but at this time, the projection 31 is formed by the sixth illustrated schematically.
The deep cam groove 61 is fitted, as shown in FIG. Then, when knocking operation is performed by pressing the knock cover 43,
The knock member 4 advances, and the pusher 41 abuts on the end surface of the protrusion 31 and advances it along the deep cam groove 61. At the end of the knock, the pen body 22 projects from the front opening 12, and the projection 31 comes out from the front end of the deep cam groove 61. However, since the end surface of the projection 31 is inclined,
As shown in FIG. (B), the rotor 3 rotates in the direction of the arrow, and a part of the end face of the protrusion 31 engages with the inclined edge of the shallow cam groove 62 to receive writing pressure. become. In this way, the rotor 3 and the display cylinder 5 rotate 60 degrees by one knocking operation, and accordingly, the window hole 11 and the second
The characters for advertisement displayed from the window hole 14 change. Then, when the knocking operation is performed again, the pressing element 41 along the shallow cam groove 62 comes into contact with the end surface of the protrusion 31 and advances a little, but since the end surface of the protrusion 31 is inclined, the rotor 3 is again rotated. It rotates and returns to the state shown in FIG. 6 (A). Therefore, the pen body 22 sinks into the front opening 12, but at this time also, the advertising letters and the like displayed from the window hole 11 and the second window hole 14 change.

In the above embodiment, the display cylinder 5 is arranged only in the gap 64 between the shaft cylinder 1 and the cam cylinder 6, but the display cylinder 5 may be lengthened to extend forward. Of course, it is also possible to extend the length of the window hole 11 to the front part, which can increase the number of characters for advertisement. Further, although the example of the knock type ball-point pen is shown, it is obvious that the present invention can be applied to other knock type writing instruments such as a knock type mechanical pencil.

[Effect of device]

As described above, in the knock-type writing instrument of the present invention, the cam cylinder having the cam groove in which the protrusion of the rotor slides is concentrically fixed to the shaft cylinder with a gap, and at least the rear part of the display cylinder is used as the shaft cylinder. Since it is placed in the gap of the cam barrel, the position of the window hole for displaying advertisement characters is not limited to the front part of the shaft barrel, but it can be displayed from the rear part of the shaft barrel, for example, the window hole provided in the clip. It can be a possible knock-type writing instrument.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a partial sectional view,
FIG. 3 is a sectional view of the cam cylinder, FIG. 4 is a partial sectional view of a main part of the knock member, FIG. 5 is a perspective view of the display cylinder, and FIG. 6 (A).
(B) is an operation explanatory view. 1 ... Shaft cylinder, 11 ... Window hole, 12 ... Front port 2 ... Ball pellet, 22 ... Pen body 3 ... Rotor, 31 ... Projection, 4 ... Knock member 41 ... Presser 5 ... Display tube, 6 ... Cam tube

Claims (1)

[Scope of utility model registration request] 1. When a knocking operation is performed, the pen body is retracted from the front end of the tip of the shaft cylinder by a knock rotation mechanism, and the display cylinder fixed to the rotor is rotated by a predetermined angle. In a knock-type writing instrument in which advertising characters written in the axial direction at intervals are sequentially displayed through the window holes formed in the shaft cylinder, the cam cylinder having the cam groove in which the protrusion of the rotor slides has a gap with the shaft cylinder. A knock-type writing instrument characterized in that it is vacantly fixed in a concentric shape, and at least a rear portion of a display cylinder is arranged in a gap between a shaft cylinder and a cam cylinder.