CN2076029U - Dual-core ball-pen capable of extending and contracting simultaneously - Google Patents

Abstract

The utility model relates to a dual-core ball-pen capable of extending and contracting simultaneously. The head part of a penholder is abreast provided with two holes for the two heads of pen cores. When the utility model is used, both of the two penpoints can be extended from one end of the penholder and two penpoints can be contracted into the penholder simultaneously when the utility model is not used. During writing, because the penholder and the surface of paper always form an included angle which is much smaller than 90 DEG, when one penpoint is used for writing, the other penpoint can not have harmful influence on the writing penpoint. The dual-core ball-pen capable of extending and contracting simultaneously has the advantages of simple structure and fast conversion rate. The other penpoint can be used only by rotating the penholder for 180 DEG along a longitudinal axis line. In addition, two penpoints of the utility model can write and draw lines simultaneously.

Description

Dual-core ball-pen capable of extending and contracting simultaneously

The utility model is the utility model about two core ball pen aspects.Two core ball pens in the past all are the two core ball pens that once can only stretch out a nib from penholder, exactly because so, this ball-point pen structure complexity, when migrating another nib by a nib, move many, speed is slow.

Order of the present utility model ground will provide a kind of simple in structure exactly, fireballing two core ball pens when migrating another nib.

The utility model is that a kind of two nibs can stretch out simultaneously, also two core ball pens of the penholder of retraction simultaneously.Two nibs of this pen all stretch out and the retraction penholder from the same end of penholder.When writing with this pen, though two nibs all stretch out from the same end of penholder, this does not influence people writes with one of them nib, because people's penholder when writing always forms one much smaller than 90 ° angle with paper.Be exactly that this angle has guaranteed not can not come in contact with paper at that nib of usefulness.In order to prevent that pen core from making two nibs lean on closely excessively mutually because of writing distortion, can consider respectively provides one only can stretch out hole with retraction for it at the head of this pen for two nibs.Because when writing, two nibs of this pen are all stretched outside penholder, so when migrating another nib, as long as penholder has been rotated 180 ° around the longitudinal axis of penholder by a nib.This pen manufactures also nothing special, just can make with the method and the material of general manufacturing ball pen.For the ease of two each usefulness of nib judging this pen is the printing ink of what color, can make on the pen with on the sign being convenient to discern (as usefulness is pen core red, blue dichromatism, pen is gone up corresponding to the place of red pen core be with redness, corresponding to the place band blue of blue pen core; Also can make it with first letter of going up corresponding color) can open window corresponding to the place of different pen cores on the penholder; Penholder can be made with material transparent; Penholder can be made (what color the pen core with what color just draws in the place corresponding to what pen core of penholder) with white material; Also can use the nib of pen core to have the pen core (color of the nib of pen core can be sprayed, and can brush, and can annotate with injection moulding, can put with plastic hoop, also can it is with) of the color identical with the color of ink of pen core.

Pen shown in the drawings is exactly of the present utility model a kind of, and wherein Fig. 1 and Fig. 3 are the main cutaway view of this pen, and Fig. 2 is the cutaway view of bowing of this pen.In these figure: (1) is pen core, (2) be penholder, (3) be small stair on the penholder, (4) be spring, (5) for promoting the part of pen core motion, (6) be the tip of part (8), (7), (9), (14) are for pressing the direction indication, (8) be part, (13) be part (8) go up and penholder (2) on facet, (15) be the direction of motion of part (5), (11) are the facet of the longitudinal axis that favours this on the part (5), and (12) are that part (5) is gone up the facet perpendicular to this longitudinal axis.This pen is that the mechanism that nib is stretched out with the retraction penholder that utilizes Shanghai, Shanghai literary composition 505 and Xiamen to fly sail 867 single core ball pens constitutes; the former with the latter two unique different be exactly to have increased a pen core and increased a hole at the penholder head; in pen shown in the drawings; (8) make with whippy plastics; when when the direction of arrow (9) indication is pressed (5), relative motion takes place with (2) in (5).Because the pipe of (1) is stationary fit with the hole of (5), so (1) also follows (5) motion.Because the motion of (5) is placed in (1) upper spring (4) and is compressed under the effect of the step (3) of (5) and (2).Because (2) make (8) can not accompany movement, so (8) deform under the effect on the inclined-plane (11) of (5).Continue motion as (5), (8) by further distortion, its tip (6) will cross the inclined-plane (11) of (5), cross inclined-plane (11) after, (8) restore to the original state (as shown in Figure 3) under the effect of self elastic force.At this moment as stopping to press (5), (12) face of (5) will withstand on (6) of (8) under the elastic force effect of (4).(5) just are parked on the position shown in Figure 3 like this.Two nibs also all stretch out penholder simultaneously, can write.When needs are withdrawn nib on penholder, only need to press (8) along direction shown in the arrow (14), (8) deform, by distortion, the tip of (8) (6) will cross vertical plane (12), after crossing vertical plane (12), (5) do in down at the elastic force of (4), to the motion of the direction shown in the arrow (15), when (12) face that moves to (5) withstands on (13) face of (8), (5) just stop motion, simultaneously nib also retraction penholder.As changing pen core, only (8) need be pressed into penholder, then extract (5) and get final product along the direction shown in the arrow (15).(2), (5), (8) of this pen all are made of plastics the method manufacturing of available injection moulding.

The utility model is compared with technology in the past, have simple in structure, the fast advantage of another nib of migrating.Moreover, and in order to reach certain special order ground, this pen also can be write and setting-out with two nibs simultaneously.

Claims (1)

1. A kind of two core ball pens comprise spring, penholder, at the penholder inner pen tip all towards unidirectional two pen cores, its improvement is: the flat agent of the nib of two pen cores in penholder, the afterbody of two pen cores together withstands on the same part in this penholder at rear portion, is that the nib of two pen cores respectively leaves a hole side by side at the head of this penholder.

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