JPH0118392Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention stores a sharp pencil and other cursive writing such as a ballpoint pen in one shaft consisting of a nib and a cap, and rotates the cap with respect to the nib. This invention relates to a dual-action writing instrument with a clock, in which the tip writing part of a sharp pencil or other writing body can be selectively retracted from the tip end opening of the tip shaft, and the cap further has a built-in clock.

(Prior art) Conventionally, in this type of writing instrument, two cursive fonts are housed in the tip shaft, and the cap and the circumferential rotation are integrated in the cap to switch and feed out the cursive fonts, as well as to sharpen the writing instruments. It housed a cylindrical cam that also transmitted the notch for feeding out the lead of the pencil, and was also configured to house a clock at the rear of the cylindrical cam inside the cap, making the cap significantly longer than the tip. This resulted in disadvantages such as poor balance in appearance and difficulty in rotating the cap with respect to the tip shaft.

(Problem to be solved by the invention) This invention has two cursive fonts, at least one of which is a sharp pencil, and a clock whose cap does not become significantly longer than the tip shaft even when the clock is stored inside the shaft. The aim is to provide a double writing instrument.
For this purpose, we created a structure that would not cause any functional problems even if the cylindrical cam was moved from inside the cap to inside the tip shaft.
The technical challenge is to create a structure in which most of the cylindrical cam is housed within the tip shaft, while the cylindrical cam can be rotated integrally by rotating the cap and is also movable in the axial direction. .

(Means for Solving the Problems) In order to solve the above problem, the double-action writing instrument with a clock according to the present invention has sliding pieces 14, 14' at the rear end.
At least one side of the sharpened pencil 4
Two cursive fonts are attached to a guide tube 1 having grooves 3 and 3' for slidingly guiding the cursive fonts in the axial direction. A groove 2 is provided and a collar portion 47 provided on the inner surface of the cylindrical cam 5 is fitted into the circumferential groove 2 so that the cylindrical cam 5 can freely rotate approximately 180 degrees in the circumferential direction on the outer periphery of the guide cylinder 1. A circumferential cam slope 6 displacing in the axial direction is provided on the front end edge of the cam 5, and the sliding pieces 14, 1
4' is brought into contact with the cam slope 6 to give rotation to the cylindrical cam 5, thereby moving the sliding pieces 14, 14' back and forth on the cam slope 6 and positioning them within the tip shaft 36 which is fixed to the guide tube 1. The writing part at the tip of the sharp pencil 4 can be selectively retracted and retracted from the tip opening of the tip shaft, and the brim 4 of the cylindrical cam 5 has the writing part at the tip of the sharp pencil 4 protruding from the tip opening of the tip shaft.
By positioning the cylindrical cam 5 in the vertical groove 46 provided so as to communicate with one end of the circumferential groove 2 of the guide cylinder 1, the cylindrical cam 5 can reciprocate in the axial direction, thereby making it possible to feed out the lead of the sharp pencil 4. In this writing instrument, most of the cylindrical cam 5 including the cam slope 6 is housed in a mounting tube 12 which is fixed in the tip barrel integrally with the guide tube 1, and the cap 24 is rotatable with respect to the tip barrel 36. A built-in clock tube 2 housing a casing 21 with a clock module 20 incorporated therein.
2, and the front end of the clock built-in tube 22 is integrally fixed to the rear end of the cylindrical cam 5. On the other hand, a clip 26 is fixed to the rear end of the clock built-in tube 22, and the clip 26 is fixed to the cap 24. An axial notch groove 25 is provided by which the cap 6 and the cylindrical cam 5 are rotated integrally in the circumferential direction via the clip 26 and the clock-internal cylinder 22, and the axial length of the notch groove 25 is This feature is characterized in that the length is set to a length that allows the clip 26 to move forward by at least a knock stroke.

(Example) Hereinafter, an example will be described with reference to the drawings. First, the guide tube 1 has two axial grooves 3, 3'.
In addition, a circumferential groove 2 is formed on the outer surface of the rear end in a range of approximately 180° in the circumferential direction, and an axial longitudinal groove 46 (first (see figure). Two writing instruments, a sharp pencil 4 and a ballpoint pen 8, are fitted into respective grooves 3, 3' of the guide tube 1 with sliding pieces 14, 14' fixed to their rear ends, respectively. Next, the cylindrical cam 5 is
A cam slope 6 that is displaceable in the axial direction is provided in a circumferential manner along the front edge, a notch 7 is provided at the frontmost position of the cam slope 6, and a collar portion 47 ( (See Figure 1) is provided protrudingly. Cylindrical cam 5
is arranged on the outer periphery of the guide tube 1 with its collar 47 fitted into the circumferential groove 2 and the sliding pieces 14, 14' in contact with the cam slope 6 by means of springs 38, 38'. 1, the notch 7 at the front end of the cam slope 6 engages with the sliding piece 14 of the sharp pencil 4, and is rotated approximately 180 degrees in the circumferential direction with respect to the clockwise rotation limit. The tip writing part of the sharp pencil 4 protrudes (the state shown in Fig. 1), and at the limit of left rotation, the notch 7 at the front end of the cam slope 6 is inserted into the sliding piece 14' of the ballpoint pen 8.
The tip writing portion of the ballpoint pen 8 is caused to protrude from the tip opening of the tip shaft. And sharp pencil 4
With the writing part at the tip protruding from the tip opening of the tip shaft, the collar part 47 of the cylindrical cam 5 is inserted into the circumferential groove 2 as shown in FIG.
A cylindrical cam 5 is located at the rear end of the vertical groove 46 at one end and can move forward in the axial direction with respect to the guide cylinder 1. When the cylindrical cam 5 is advanced, the sharp pencil 4 moves the notched lead. It can be played out.
Note that when the tip writing portion of the ballpoint pen 8 is protruded from the tip opening of the tip shaft, the flange portion 47 is fitted into the circumferential groove 2, so the cylindrical cam 5 cannot of course be knocked. The front end of the guide tube 1 is inserted into the inner surface of the rear end of the joint tube 10 and fixed so as to be immovable in the axial direction and unrotatable in the circumferential direction. The guide tube 1 and the connecting tube 10 are inserted into the mounting tube 12, and are fixed by pressing the ribs 9 provided on the outer surface of the connecting tube 10 to the inner surface of the mounting tube 12. Guide tube 1
The cylindrical cam 5 disposed on the outer periphery of the cylindrical cam 5 is also largely housed inside the mounting cylinder 12, including the cam slope 6.
The mounting tube 12 is inserted substantially entirely into the tip shaft 36, and is removably fixed by pressing the rib 11 provided on its outer surface to the inner surface of the tip shaft 36. Therefore, most of the cylindrical cam 5 is housed within the front shaft 36. In addition, FIG. 5 shows the joining cylinder 10 and the mounting cylinder 1.
2 shows another fixing method, in which a relay tube 13 is fixed to the front end of the joint tube 10 which is fixed to the guide tube 1 in the same way as above, and this relay tube 13 is attached to the mounting tube 12.
It is fixed to the inner surface of the front end. A sliding piece 14 that is fitted into the grooves 3 and 3' of the guide cylinder 1 and moves back and forth in the axial direction as the cylindrical cam 5 rotates;
14' is the groove 3, as shown in FIGS. 3 and 4.
A protruding portion 15 is provided that protrudes to the outside of the groove 3' and engages the edges on both sides of the groove 3, 3'. The sliding pieces 14, 14' are moved by the cam slope 6 of the cylindrical cam 5.
When a circumferential force is applied to the sliding piece 14,
This is to prevent 14' from rotating inside the grooves 3, 3'. The rear end of the cylindrical cam 5 is the mounting cylinder 1
A connecting pipe 16 that slightly protrudes from the rear end of 2 and is press-fitted into the mounting tube 12 is disposed on its outer periphery, and a decorative ring 17 and a stopper 19 are attached to the outer periphery of the connecting pipe 16 with a spring washer 18 interposed therebetween. are arranged. The stopper 19 is fixed to the connecting pipe 16. At the rear end of the cylindrical cam 5 is a clock built-in cylinder 22.
The front ends of the two are press-fitted and connected. A casing 21 housing a clock module 20 is housed in the clock built-in tube 22, and a bush 23 is press-fitted into the rear end. Clock built-in tube 22
A cap 24 is fitted from the rear onto the outer periphery of the cap.
The front end of the cap 24 is fixed to the decorative ring 17 mentioned above. Therefore, the cap 24 is a decorative ring 17.
It is rotatable in the circumferential direction with respect to the connecting tube 16 through the connecting tube 16 and cannot be moved in the axial direction, and is also freely rotatable in the circumferential direction with respect to the tip shaft 36 through the connecting tube 16 and the mounting tube 12, and is not movable in the axial direction. Unable to move in any direction. The cap 24 is provided with an axial notch 25 extending forward from the rear edge at one location on its side surface. The attachment part of the clip 26 is in contact with the rear end surface of the bush 23 fixed to the rear end of the watch case 22, and the battery case 30 is applied to sandwich it. It penetrates through the section and is screwed onto the casing 21. A battery 31, a contact piece 28, a contact spring 27, and an insulating material 29 are housed in the battery case 30, and a cover 32 that protrudes toward the rear of the cap 24 is fitted to the rear end of the battery case 30. The clip 26 passes through the cutout groove 25 of the cap 24 and projects to the outside. Therefore, when the cap 24 is rotated, the clip 26 also rotates, the clock-internal cylinder 22 to which the clip 26 is fixed also rotates, and the cylindrical cam 5 fixed to the clock-internal cylinder 22 also rotates integrally. Also, cap 24
The length of the cutout groove 25 in the axial direction is set so that the clip 26 can advance at least by a knock stroke. The above clock built-in tube 22
A window is provided on the side surface of the cap 24, and a transparent frame plate 33 is attached thereto through which the time display section 34 of the clock module 20 can be seen. A window 35 (see FIG. 2) is also provided at a position opposite to the window 35 so that the time display 34 can be viewed from outside the cap 24.

In addition, in the figure, 39 is a core pipe of the sharp pencil 4, 40 is a flange portion provided on the core pipe 39, 41 is a receiving pipe for fixing the ballpoint pen 8,
42 is a tail plug fitted to the rear end of the receiving pipe 41;
Reference numeral 3 indicates a protrusion provided on the sliding pieces 14, 14' and engages with the front end notch 7 of the cam slope 6, 44 a time adjustment button, and 45 a date/time switching button.

(Operations and Effects) The structure of the present invention is as described above, and since a sharp pencil, other cursive writing, and a clock are built into one shaft, the usefulness is of course increased. In particular, the clock housing tube is integrally fixed to the rear end of the cylindrical cam, and the clip is integrally fixed to the rear end of the clock housing tube, and the clip protrudes outward from the notch groove provided in the cap. The axial length of the notched groove in the cap is set so that the cylindrical cam can move forward by at least the clock stroke. Since the cylindrical cam became able to rotate as a unit and move in the axial direction, it was possible to store most of the cylindrical cam inside the front shaft and place only the clock inside the cap. It became possible to reduce the length of the cap. As a result, the lengths of the cap and tip shaft are well balanced, resulting in a good appearance and operability.

[Brief explanation of the drawing]

The figure shows an embodiment of the present invention.
The figure is a partial sectional view showing the whole, FIG. 2 is a plan view, FIG. 3 is a sectional view taken along the line A-A in FIG. 1, FIG. 4 is a schematic diagram of the main part, and FIG. FIG. 1... Guide cylinder, 2... Circumferential groove, 3, 3'... Groove, 4...
Sharp pencil, 5... Cylindrical cam, 6... Cam slope, 8... Ballpoint pen, 10... Joint tube, 12... Mounting tube, 13... Relay tube, 14, 14'... Sliding piece, 1
6... Connection pipe, 20... Clock module, 21... Casing, 22... Clock built-in tube, 23... Bush, 2
4... Cap, 25... Notch, 26... Clip,
30...Battery case, 31...Battery, 32...Cover,
34... Time display section, 36... Front axis, 38, 38'...
Spring, 39... Core pipe, 46... Vertical groove, 47
...Brim part.

Claims (1)

[Scope of utility model registration request] A guide cylinder having grooves 3, 3' for slidingly guiding two writing pieces, at least one of which is a sharp pencil 4, with sliding pieces 14, 14' fixed to the rear end thereof in the axial direction. 1, a circumferential groove 2 is provided in the outer surface of the rear portion of the guide tube 1, and a collar portion 47 provided on the inner surface of the cylindrical cam 5 is fitted into the circumferential groove 2 to guide the cylindrical cam 5. The cylinder 1 is rotatable approximately 180 degrees in the circumferential direction on the outer periphery of the cylinder 1, and a circumferential cam slope 6 displaceable in the axial direction is provided on the front end edge of the cylindrical cam 5, so that the sliding pieces 14, 14' can be rotated approximately 180 degrees in the circumferential direction. The tip of the cursive body is positioned within the tip shaft 36 which is fixed to the guide cylinder 1 by moving the sliding pieces 14, 14' back and forth on the cam slope 6 by applying rotation to the cylindrical cam 5 in contact with the slope 6. The brim portion 47 of the cylindrical cam 5 is made to be selectively retractable in and out of the tip opening of the tip shaft, and the collar portion 47 of the cylindrical cam 5 is inserted into the circumferential groove 2 of the guide tube 1 with the tip writing portion of the sharp pencil 4 protruding from the tip opening of the tip shaft. A writing instrument that enables the lead of a sharp pencil 4 to be drawn out by being positioned in a vertical groove 46 provided in communication with one end to enable axial reciprocating movement of the cylindrical cam 5, which is integrated with the guide tube 1. Most part of the cylindrical cam 5 including the cam slope 6 is housed in the mounting cylinder 12 which is fixed inside the tip shaft 36, and the cap 24 is rotatable with respect to the tip shaft 36.
A clock built-in tube 22 housing a casing 21 incorporating a clock module 20 is disposed inside the clock built-in tube 22, and the front end of the clock built-in tube 22 is integrally fixed to the rear end of the cylindrical cam 5. The clip 26 is fixed to the rear end of the cap 22, and the clip 26 is made to protrude from the cap 24.
An axial notch groove 25 is provided to allow the cap 6 and the cylindrical cam 5 to rotate integrally in the circumferential direction via the clock built-in cylinder 22, and the axial length of the notch groove 25 is set so that the clip 26 has at least a knock stroke. A double-action writing instrument with a clock, characterized by being set to a length that allows it to move forward.