CN103879188B

CN103879188B - Multi-cored pencil

Info

Publication number: CN103879188B
Application number: CN201410140020.9A
Authority: CN
Inventors: 李德蔺; 吴思思; 范建辉; 许瑾超; 王键; 施小明; 朱坚民; 钱炜
Original assignee: University of Shanghai for Science and Technology
Current assignee: University of Shanghai for Science and Technology
Priority date: 2014-04-10
Filing date: 2014-04-10
Publication date: 2016-06-08
Anticipated expiration: 2034-04-10
Also published as: CN103879188A

Abstract

The present invention relates to a kind of Multi-cored pencil, translator is made up of fixed rack, short connecting rod, quill, linear springs, torsional sprig, button, and described button is arranged on fixed rack upper end, and with fixed rack sliding connection; Described short connecting rod, fixed rack and quill form a parallel four-bar linkage, propelling pencil is installed in quill inside, one linear springs is housed between quill and propelling pencil, one torsional sprig is housed between short connecting rod and fixed rack, translator is rigidly connected by the fixed rack back side and housing first face, an enclosure installs three translators, and three translators are mutually in 120 degree. The plumbous core that the built-in three kinds of drawing of the present invention are conventional, three kinds of live widths that corresponding drawing is conventional, it is possible to realize a key and change core, only need to press next button and can change to an other pen core fast. And all pen cores its axis when using state overlaps with housing axis all the time, feel is better, convenient and swift, has good practicality and ease for use.

Description

Multi-cored pencil

Technical field

The present invention relates to a kind of pencil, it is specifically related to a kind of Multi-cored pencil.

Background technology

In hand-drawing process, often need to use the pencil of different thicknesses to show different live widths. But frequently change pencil not only to bother, and make mistakes in easily hurrying. Present existing Multi-cored pencil mostly adopts rotation to add the mode pressed down and changes pen core, and changing a pen core needs three actions, although being one-pen, the process of replacing still extremely bothers. The Multi-cored pencil also having adopts formula in parallel, different plumbous cores is on different axis, obviously this kind of eccentric layout is unfavorable for feel when using, especially for use on compasses time, namely the pen core changing different size means radius also correspondingly in change, in order to reach the target of accurately drawing, it is necessary to readjust compasses radius. In addition the Multi-cored pencil that has adopts the mode tilting and releasing, but has relatively large deformation amount due to the inner pen core of needs, can only adopt shorter plumbous core.

Summary of the invention

The present invention to be provided a kind of Multi-cored pencil, frequently changes the problem of pencil during for solving drawing.

For achieving the above object, the technical scheme of the present invention is: a kind of Multi-cored pencil, comprise shell, the cap for brush, propelling pencil, translator, it is characterized in: translator is made up of fixed rack, short connecting rod, quill, linear springs, torsional sprig, button, described button is arranged on fixed rack upper end, and with fixed rack sliding connection; Described short connecting rod, fixed rack and quill form a parallel four-bar linkage, propelling pencil is installed in quill inside, one linear springs is housed between quill and propelling pencil, one torsional sprig is housed between short connecting rod and fixed rack, translator is rigidly connected by the fixed rack back side and housing first face, an enclosure installs three translators, and three translators are mutually in 120 degree.

Three inner propelling pencils installing different plumbous core thickness respectively of translator. Shell is cylinder barrel shape, and inwall has three mutually in plane, its size and the fixed rack back side sizableness of 120 degree. The cap for brush is a shell shape circular cone, and its bottom surface radius is identical with shell radius, and an aperture is arranged at its top, and inside radius is identical with propelling pencil front end needle tubing outside radius. Fixed rack upper end has one for installing the chute of button, and there are two hinges lower section, and with short rod hinge connection, its distance equals the distance between two on quill hinge. Quill is a thin-walled tubular structure, its internal diameter equals propelling pencil external diameter, its interior lower end has a baffle plate, the part that baffle plate is provided with a permission propelling pencil front end thin passes through aperture, linear springs is installed in baffle plate upper end, side is provided with two hinges, and by hinge and short rod hinge connection, the distance between two hinges equals the distance between two on fixed rack hinge. Respectively there is a hinge at short connecting rod two ends, and hinge length meets it can make the plumbous wire mandrel of propelling pencil overlap with housing axis when horizontality. Button is a rectangular parallelepiped, is provided with an elastic projection and a rigidity projection in the one side near center, and elastic projection is at rigidity underbump.

The invention has the beneficial effects as follows: the present invention is equipped with a propelling pencil separately by the translator that three take parallel?ordinal shift as principal organ and is combined in a shell. Three translator inside are equipped with the propelling pencil of the plumbous core of different thicknesses respectively. Three translators in the enclosure wall mutually in 120 degree of installations. By pressing the button at selected translator top, the parallel?ordinal shift of translator is rotated, thus the propelling pencil driving inner corresponding assembling moves to center, until plumbous wire mandrel overlaps with housing axis, continue pressing button, propelling pencil will move downward, until the pilot hole of propelling pencil nib on the cap for brush. The plumbous core that the built-in three kinds of drawing of the present invention are conventional, three kinds of live widths that corresponding drawing is conventional, it is possible to realize a key and change core, only need to press next button and can change to an other pen core fast. And all pen cores its axis when using state overlaps with housing axis all the time, feel is better, convenient and swift, has good practicality and ease for use.

Accompanying drawing explanation

Fig. 1 is the structural upright schematic diagram of the present invention;

Fig. 2 is the STRUCTURE DECOMPOSITION figure of the present invention;

Fig. 3 is the structural upright schematic diagram of the translator of the present invention;

Fig. 4 is the translator STRUCTURE DECOMPOSITION figure of the present invention.

Embodiment

Describe the present invention below in conjunction with drawings and Examples.

Such as Fig. 1, shown in 2, a kind of Multi-cored pencil, comprises shell 1, the cap for brush 2, propelling pencil 7, translator 10. Translator 10 is rigidly connected by face in fixed rack 3 back side and shell 1, and three translators, 10, three translators 10 are installed mutually in 120 degree in shell 1 inside. Three inner propelling pencils installing different plumbous core thickness respectively of translator.

Such as Fig. 3, shown in 4, translator 10 is made up of fixed rack 3, short connecting rod 5, quill 4, linear springs 8, torsional sprig 9, button 6.

Button 6 is arranged on fixed rack 3 upper end, and with fixed rack 3 sliding connection, button 6 can slide up and down. Short connecting rod 5, fixed rack 3 and quill 4 form a parallel four-bar linkage, propelling pencil 7 is installed in quill 4 inside, one linear springs 8 is housed between quill 4 and propelling pencil 7, and fixed rack 3 is fixed on shell 1 inwall, and a torsional sprig 9 is housed between short connecting rod 5 and fixed rack 3. Quill 4 can be upwards movable to contact fixed rack 3, and now short connecting rod 5 is 5 ~ 10 degree with fixed rack 3 angle, and torsional sprig 9 moment of torsion is minimum. Quill 4 can the movable postive stop baffle to making lower surface contact fixed rack 3 times ends downwards, now short connecting rod 5 and fixed rack 3 are in 90 degree of angles, torsional sprig 9 moment of torsion is maximum, and propelling pencil 7 wire mandrel in quill 4 overlaps with shell 1 axis and the cap for brush 2 aperture axis. When not pressing down button 6, torsional sprig 9 can make parallel four-bar linkage shrink automatically, and the angle between short connecting rod 5 and fixed rack 3 diminishes, and linear springs 8 can make propelling pencil 7 move up in quill 4.

Installing propelling pencil 7 in quill 4, propelling pencil 7 can move up and down in quill 4. Quill 4 times ends have a postive stop baffle, and baffle plate has an aperture, it is possible to the part allowing propelling pencil 7 times ends thin is stretched out, and have a linear springs 8 under the part that postive stop baffle upper end and propelling pencil 7 are thick between end.

There is a chute fixed rack 3 upper end, for installing button 6, withstands propelling pencil 7 upper end below button 6.

When propelling pencil 7 is packed up, short connecting rod 5 is minimum with fixed rack 3 angle, and torsional sprig 9 moment of torsion is minimum, and linear springs 8 is in mild compression state. When pressing button 6 downwards, button 6 promotes propelling pencil to move for 7 times, first parallel four-bar linkage distortion, short connecting rod 5 becomes big with the angle of fixed rack 3, until short connecting rod 5 reaches 90 degree with fixed rack 3 angle, now short connecting rod 5 no longer moves, and propelling pencil 7 wire mandrel overlaps with the lower section cap for brush 2 aperture axis. Continuing to press down, linear springs 8 is compressed, and what propelling pencil 7 front end was thin partially passes through the cap for brush 2 aperture. Now can use this lead core.

A parallel four-bar linkage and its corresponding button form a translator 10. This Multi-cored pencil one has three cover translators 10, is connected on shell 1 inwall by the respective fixed rack back side respectively. It is in same height, around housing axis mutually in 120 degree of layouts.

Button 6 has an elastic projection and a rigidity projection near the side of axis, and the height of elastic projection exceeds rigidity projection and is about 2mm. Elastic projection can be compressed inwardly, and rigidity projection can not be compressed inwardly. The elastic projection of three buttons 6 contacts at axis place, center.

When pressing required pen core, such as pressing next number button, the button corresponding to No. is pressed after putting in place, and the elastic projection of a button is stuck in the rigidity underbump of No. two and route button, then a translator can not rebound, and now can normally use the pen core with No.. When needing the pen core changing No. two, pressing No. two buttons, now the rigidity projection of No. two buttons moves downward, and the stability of the elastic projection of a button is destroyed, and a translator pops up at once, abdicates central space. Now only need to continue to press No. two buttons, then No. two translators can put in place, and No. two plumbous cores can use. For No. three, with reason.

After a certain translator 10 is pressed, continues pressing corresponding button and can compress propelling pencil, knockout can be made it.

During use:

(1) when needs use a certain pen core, corresponding button is directly pressed.

(2) when needs propelling pencil knockout, pressing corresponding button is continued.

(3) when needs switch other pen core, corresponding button is directly pressed.

(4) when pen core under using state regained by needs, the button of any non-working condition is pressed.

Claims

1. a Multi-cored pencil, comprise shell (1), the cap for brush (2), propelling pencil (7), translator (10), it is characterized in that: described translator (10) is made up of fixed rack (3), short connecting rod (5), quill (4), linear springs (8), torsional sprig (9), button (6), described button (6) is arranged on fixed rack (3) upper end, and with fixed rack (3) sliding connection; Described short connecting rod (5), fixed rack (3) and quill (4) composition parallel four-bar linkage, propelling pencil (7) is installed in quill (4) inside, one linear springs (8) is housed between quill (4) and propelling pencil (7), one torsional sprig (9) is housed between short connecting rod (5) and fixed rack (3), translator (10) is rigidly connected by fixed rack (3) back side and shell (1) interior face, three translators (10) are installed in shell (1) inside, and three translators (10) are mutually in 120 degree; Described button (6) is provided with an elastic projection and a rigidity projection in the one side near center, and elastic projection is at rigidity underbump; The elastic projection of three described buttons (6) contacts at Multi-cored pencil integral central axis place; Described quill (4) is a thin-walled tubular structure, its internal diameter equals propelling pencil (7) external diameter, its interior lower end has a baffle plate, the part that baffle plate is provided with a permission propelling pencil front end thin passes through aperture, linear springs (8) is installed in baffle plate upper end, side is provided with two hinges, and hinged by hinge and short connecting rod (5), and the distance between two hinges equals the distance between two hinges on fixed rack (3).

2. Multi-cored pencil according to claim 1, it is characterised in that: the inner propelling pencil (7) installing different plumbous core thickness respectively of described three translators (10).

3. Multi-cored pencil according to claim 1, it is characterised in that: described shell (1) is in cylinder barrel shape, and inwall has three mutually in plane, its size and fixed rack (3) back side sizableness of 120 degree.

4. Multi-cored pencil according to claim 1, it is characterised in that: the described cap for brush (2) is a shell shape circular cone, and its bottom surface radius is identical with shell (1) radius, and an aperture is arranged at its top, and inside radius is identical with propelling pencil (7) front end needle tubing outside radius.

5. Multi-cored pencil according to claim 1, it is characterised in that: respectively there is a hinge at described short connecting rod (5) two ends, and hinge length meets its plumbous wire mandrel that can make propelling pencil (7) when horizontality and overlaps with shell (1) axis.