JPH0432309Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a device that serves as a medium for fixing a reel and interlocking the reel with a feeding mechanism.

(Prior art) For example, a conventional rotary-feeding type double-action writing instrument has 1
Slide by fitting the rear end of the ballpoint pen refill of the book into the holder, and then fitting the sliding piece to the rear end of the holder, bringing the sliding piece into contact with the cylindrical cam, and giving rotation to the cylindrical cam. There are some devices that are configured to move the reel around the axis to feed out the reel, but the receptacle into which the reel is fitted was designed to be able to fix only reels of a certain predetermined size.

(Problems to be Solved by the Invention) By the way, there are various materials and dimensions of re-feels, and it would be extremely wasteful to design a receiver that is intended only for a specific re-feel. Therefore, an object of the present invention is to provide a highly useful refiel fixing receiver that can selectively fit two types of refiels with different outer diameters.

(Means for Solving the Problems) The refiel fixing bracket devised to achieve the above object has a first refiel fitting hole that is open at the front end surface and has a rib protruding from the inner surface. the first
A second reel fitting hole having an inner diameter smaller than that of the reel fitting hole and having ribs protruding from the inner surface thereof is provided in communication with the first reel fitting hole and the second reel fitting hole.
A groove is provided in the step at the boundary of the second reel fitting hole and in the back wall of the second reel fitting hole, and a fitting portion for the feeding mechanism is provided at the rear end. be.

(Embodiment) As shown in FIGS. 1 and 2, the refeel fixing receiver 1 of the illustrated embodiment of the present invention has a large diameter portion 2 at the front end, and a medium diameter portion 3 having a required length at the rear thereof. The rear end has a small diameter part 4, and the large diameter part 2 has a first part with a large inner diameter that opens on the front end surface from the front end to approximately the center part.
A re-feel fitting hole 5 is provided, and a plurality of circumferential ribs 6 having a parting point in the middle are provided on the inner surface at required locations in the axial direction. A second reel fitting hole 7 having an inner diameter smaller than the first reel fitting hole 5 is provided next to the first reel fitting hole 5 up to the vicinity of the rear end, and an axial rib 8 is provided on the inner surface of the second reel fitting hole 7. A plurality of grooves are provided at required locations on the top, and grooves are provided at the stepped portion 9 at the boundary between the first re-feel fitting hole 5 and the second re-feel fitting hole 7 and at the center of the back wall 10 of the second re-feel fitting hole 7. 11,
11', and the small diameter portion 4 at the rear end is provided with a fitting portion 12 for a sliding piece, which will be described later.

FIG. 3 shows a rotary-feeding type double-action writing instrument equipped with the above-mentioned refeel fixing holder 1, in which the guide tube 15, which has a pair of guide grooves 14, 14' inside the tip shaft 13, is made non-rotatable. The core pipe 17 fixed and connected to the rear end of the sharp pencil 16 and the sliding piece 18 fixed to the rear end of the core pipe 17 are housed in one of the guide grooves 14 of the guide tube 15, and the above-mentioned re-feel fixing receiver is installed. Fit the rear end portion of the ballpoint pen refill 19 into the first refill fitting hole 5 at the front end of the top 1 and slide the fitting portion 12 at the rear end
8' and housed in the other guide groove 14' of the guide tube 15. A cam slope 20 displacing in the axial direction is provided circumferentially on the front edge, and an eraser 21 is provided in the inner hole at the rear end. A cylindrical cam 25 is fitted with an eraser stopper 22 that holds the eraser, and a cylindrical cam 25 is fitted with a knob cover 23 and a knob cover decoration 24 on the outer periphery of the rear end so as to cover the eraser 21. However, it is mounted so that it cannot rotate in the circumferential direction and the rear end protrudes from the cap 26,
The cap 26 is rotatably assembled to the guide cylinder 15, and the front end of the cylindrical cam 25 is arranged on the outer circumference of the guide cylinder 15, and the sliding pieces 18, 18' and the front walls of the guide grooves 14, 14' are connected to each other. There is a spring 2 between
7, 27' are interposed to urge the sliding pieces 18, 18' backward so that they come into contact with the cam slope 20 of the cylindrical cam 25, and by rotating the cap 26 with respect to the front shaft 13, the sliding pieces 18, 18' are pushed backward. The sliding pieces 18, 1 are moved by the cam slope 20 of the cylindrical cam 25 that rotates integrally.
8' and move it back and forth alternately to open the shaft tip opening 2.
8, each writing portion 29, 29' of the sharpening pencil 16 and ballpoint refill 19 can be selectively retracted. The first refill fitting hole 5 of the refill fixing receiver 1 is intended for a ballpoint pen refill made of a resin tube for low-grade products, and the second refill fitting hole 7 is intended for a ballpoint pen refill made of a metal pipe for high-grade products. The inner diameter of each ballpoint pen refill is set to a predetermined size.

(Function) As shown in FIGS. 4 and 5, a ballpoint pen refill 19 with a large outer diameter is attached to the first refill fitting hole 5 of the refill fixing holder 1, and its rear end is hooked to the stepped portion 9. The ballpoint pen refill 19' with a small outer diameter is fixed in the second refill fitting hole 7 with its outer surface crimped to the rib 6.
is fixed by bringing its rear end into contact with the back wall 10 and pressing its outer surface against the rib 8. still,
The grooves 11 and 11' in the step part 9 and the back wall 10 are provided for air exchange, and the ribs 6 and 8 are also provided between the outer surface of the ballpoint pen refills 19 and 19' and the inner surface of the refill fitting hole. It is provided so that there is a gap for air circulation.

In the above embodiment, the rear end fitting part 12 is fixed to the sliding piece 18' and assembled with a rotary feeding mechanism, but it is of course possible to combine it with other types of feeding mechanism, such as a knock type feeding mechanism. It is possible.

Further, in the above embodiment, the ballpoint pen refill 19 is fitted to one of the multiple writing instruments, but it is also possible to fit both ballpoint pen refills to both. Moreover, it can of course be used not only for double-type writing instruments but also for single-type writing instruments.

Further, refills are not limited to ballpoint pens, but also include refills for all other types of writing instruments such as markers.

(Effects of the invention) As described above, this invention can selectively fix two types of reels with different outer diameters, increasing the utility value compared to conventional methods that only fix reels with a specific outer diameter. effective.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention; Fig. 1 is a longitudinal sectional view, Fig. 2 is a plan view, Fig. 3 is a longitudinal sectional view of a double writing instrument equipped with a refeel fixing holder, and Fig. 4 is a longitudinal sectional view. 5 is a vertical cross-sectional view of the ballpoint pen refill fitted into the first refill fitting hole, and FIG.
FIG. 3 is a longitudinal cross-sectional view of the ballpoint pen refill fitted into the refill fitting hole of the refill fitting hole. 1... refill fixing bracket, 2... large diameter part,
3... Medium diameter part, 4... Small diameter part, 5... First re-reel fitting hole, 6... Rib, 7... Second re-reel fitting hole, 8... Rib, 9... Step part , 10...
Back wall, 11, 11'... Groove, 12... Fitting part, 1
3... Tip shaft, 14, 14'... Guide groove, 15...
Guide tube, 16...Sharp pencil, 17...
Core pipe, 18, 18'...Sliding piece, 19, 1
9'... Ballpoint pen refill, 20... Cam slope, 21... Eraser, 22... Eraser stopper, 23
...Notsuku cover, 24...Notsuku cover decoration,
25...Cylindrical cam, 26...Cap, 27,2
7'...Spring, 28...Shaft tip opening, 29,
29'...Writing section.

Claims (1)

[Scope of utility model registration request] At the back of the first refiel fitting hole which is open at the front end face and has a rib protruding from the inner surface, there is a second refiel fitting hole which has a smaller inner diameter than the first refiel fitting hole and which also has a rib protruding from the inner surface. The fitting holes are provided in a communicating state, and a stepped portion at the boundary between the first reel fitting hole and the second reel fitting hole, and a stepped portion at the boundary between the second reel fitting hole and the second reel fitting hole. A holder for fixing a re-feel in a writing instrument, characterized in that a groove is provided in each back wall of the holder, and a fitting part for a feeding mechanism is provided in a rear end part.