CN2033341U

CN2033341U - New-type pen point of ball pen

Info

Publication number: CN2033341U
Application number: CN 88211898
Authority: CN
Inventors: 黄莅国
Original assignee: SHANGHAI BALL PEN FACTORY
Current assignee: SHANGHAI BALL PEN FACTORY
Priority date: 1988-06-01
Filing date: 1988-06-01
Publication date: 1989-03-01

Abstract

A pen point of ball pen comprises a ball, a needle pipe type pipe, a non-conventional type ink supply core, a fibre ink piloting core, etc. The utility model is characterized in that existing ball seating is replaced by a punctate spherical surface ball seating formed by that the pipe is punched a plurality of points. The existing ball seating comprises a ball seating, ink supply holes, and five ink supply tanks. The utility model avoids multistep processes during existing manufacture such as turning, hole punching, tank punching, etc. The utility model simplifies manufacture process, improves ink discharging status and the phenomenon that sightline is covered by pen point, makes writing more smooth and fluent, and makes hand feeling more comfortable. Corrosion resistance and abrasive resistance can be enhanced if the utility model is manufactured by adopting stainless steel material, and writing length is increased 2-3 times compared with existing pen point.

Description

A kind of novel liquid pearl nib

The utility model relates to a kind of ball pen nib, particularly a kind of needle tube type ball pen nib.

Existing ball pen nib, structure as shown in Figure 1, by steel ball 1, copperhead 2, ball seat 3, fiber diversion core 4, socket 5 parts such as grade constitute.Wherein ball seat 3, play dual parts to withstand upward pressure that steel ball is subjected to and write liquid to the steel ball supply when writing.The structure of ball seat is seen Fig. 2.6 is the ball seat base among the figure; 7 are the central water supply hole that is connected with fiber diversion core 4 in the end; 8 is five supply flumes that are connected with water supply hole 7 on base 6, and its effect is unlikely obstruction water channel when pressurized is adjacent to ball seat when steel ball is write.Because ball seat itself is smaller, will pass through car system base during manufacturing, the water supply hole in the middle of boring is gone back five supply flumes of communications centre all around, complex process, and difficulty of processing is very high.

The purpose of this utility model is that a kind of improved ball nib will be provided, and this nib is a material with needle tube type tubing, adopts punching press to form point-like sphere ball seat, makes simple in structurely, easy to make, and And has improved writing quality effectively.

Fig. 1 is the structure diagram of existing ball pen nib.

Fig. 2 is the profile of existing ball pen nib member ball seat.

Fig. 3 is a structure diagram of the present utility model.

Fig. 4 is the profile of the utility model member punching press type point-like sphere ball seat.

Describe the concrete structure detail of the utility model in detail below in conjunction with accompanying drawing.

The utility model structure is as shown in Figure 3: 9 is the needle tube type nib, and 10 is steel ball, has the ball about 1/3 to expose the tubing end approximately, and as the lettering pen pearl, all the other are partly then pulled out cladding by moving back of tubing end and live, in order to avoid steel ball is outwards deviate from.Apart from the about ball diameter in tubing end 2/3 place, be by some point-like sphere ball seats 11 that form that dash; This ball seat internal structure is seen Fig. 4.Wherein 15 is towards point, dashes some place outer pipe wall and is subjected to cave inward after the punching press, forms a projective structure 16 at inside pipe wall; One group of point-like sphere ball seat that such projective structure forms, can stop steel ball writing the pressure that pops up when stressed effectively, thereby make ball can retraction tip of the brushstyle of a writing or painting pipe in, and the space of in the middle of the several projective structures of tube wall central authorities, reserving, then form priming hole 17, can fully guarantee water supply ball.12 is abnormal shape water supply core in the tubing of punch forming point-like sphere ball seat back among Fig. 3, for strong special-shaped water supply core with fiber being connected of water core 14, also adopt injection moulding socket 13, can guarantee the unimpeded of water channel effectively, be convenient to the connection of other pieces again.

The utility model is simple in structure, and is easy to make.Whole manufacturing process, as long as get suitable tubing, through cutting pipe material, the spinning typing, towards point, bead loading is closed up and just can be finished.Process without any need for turning fully.Particularly with dashing the point-like sphere ball seat replacement traditional ball sockets that point forms, especially as long as turning just can replace making ball seat in the past with one stamping procedure the time, bore aperture, towards pearl, towards complicated processing such as supply flumes, but simplified production technology ， And conservation greatly, reduce production costs, have certain economic benefits.

The utility model owing to adopt needle tube type tubing, when writing drop point hide look little, comfortable feel.Owing to adopt to dash the point-like sphere ball seat of some form, enlarged the diversion passage of ball seat, And with sound constructions such as sockets being connected of special-shaped water supply core and fiber diversion core, guaranteed the more unimpeded of diversion, make when writing more the garden slide the water outlet smoothness.As adopt stainless steel pipe, and steel ball, the corrosion that also can avoid writing liquid strengthens wearability, writes the also comparable traditional pen head length of length 1-2 doubly.

An embodiment is provided below

Adopt φ 0.5mm stainless steel and φ 0.8mm stainless-steel seamless pipe.After using cutting machine to press the length cutting blanking of nib earlier, use the spinning machine rotary press modelling, forming point-like sphere ball seat with 0.5 ton of stamping machine by three points of equidistant punching press from nib 0.3-0.4mm place.The steel ball of packing into then exposes about 1/3 steel ball, uses spinning machine to form an annular at steel tube end part and moves back and pull out, and the part steel ball cladding in the steel pipe the inside is lived.Insert special-shaped water supply Xin ， And from the other end and by socket the water supply core is fixedlyed connected with fiber diversion core, the utility model is promptly accused and is finished.On probation after assembling with other member of ball pen, effect all can reach the requirement of expection.

Claims

1, a kind of ball pen nib comprises ball, needle tube type tubing, special-shaped water supply core, fiber diversion core etc., it is characterized in that ball seat is made of some point-like spheres that form that dash on the tubing.