CN2925909Y

CN2925909Y - Rotary core knockout pen

Info

Publication number: CN2925909Y
Application number: CN 200620098031
Authority: CN
Inventors: 王新富
Original assignee: Fujian Soundy Enterprise Co Ltd
Current assignee: Fujian Soundy Enterprise Co Ltd
Priority date: 2006-07-19
Filing date: 2006-07-19
Publication date: 2007-07-25
Anticipated expiration: 2016-07-19

Abstract

The utility model relates to a screw type lead pushing pencil comprised of a pencil head, a pencil tube screwed on the pen head, a pencil cap inserted on the pencil tube, and a pencil lead. The utility model is characterized in that one end of the pencil cap is inserted in the pencil tube in a dynamic cooperating structure, an axial convex track is set in the pencil cap, an outer thread lead clipping screw rod is penetrated between the pencil cap and the pencil tube, a clip used to clamp the positioning pencil lead is set at the lower end of the lead clipping screw rod, a guiding groove sliding on the axial convex track of the pencil cap is set on the upper end, and a driving sloping point used to drive the lead clipping screw rod is set on the pencil tube. When being used, the screw pencil cap can drive the screw rod move forward or backward, and drive the pencil lead to extend from or retract into the pencil head. The utility model has the characteristic that the structure design is reasonable and is suitable for driving thick pencil lead of large diameter, and the length of the pencil lead can be controlled. The utility model can be widely used to manufacture 2B examination special pencils, color lead pencil, drawing pencils of various sizes, being clear in using, hygienic and environment protective.

Description

A kind of rotation propelling pencil

Technical field:

The utility model belongs to the stationery field, and particularly a kind of rotation propelling pencil is particularly useful for making the lettering pen of thick pen core.

Background technology:

Propelling pencil has occupied the market of main flow, and it has easy to use, need not to cut pen, and can save timber in a large number, and belong to product than environmental protection, extensively be subjected to user's welcome, but also there is deficiency in it,, finger pressure pusher knockout too thin as pen core, and length can't finely be controlled.The propelling pencil structure roughly includes nib, the shaft of a writing brush, the cap for brush and built-in knockout mechanism, and the sandwich cover that is fixed on written nib place that cooperates with knockout mechanism.Complex structure not only, and be confined to use on the thin pen core.So can only keep traditional structure and mode with pen, sketch with thick core pen such as pen and chalk at examination at present.

Summary of the invention:

The purpose of this utility model is a kind of rotation propelling pencil that is fit to thick pen core of design.

Technical solutions of the utility model be achieved in that a kind of by nib, be screwed in the shaft of a writing brush on the nib, be plugged in the rotation propelling pencil that the cap for brush on the shaft of a writing brush and pen core are formed, it is characterized in that the cap for brush one end is plugged in the shaft of a writing brush for dynamic fit structure radially, be provided with axial protruding rail in the cap for brush, one external screw thread sandwich screw rod is arranged among the cap for brush and the shaft of a writing brush, sandwich screw rod bottom is provided with one and can presss from both sides toward the dop of location pen core, the upper end is provided with the guide groove that can slide on the axial protruding rail of the cap for brush, the shaft of a writing brush is provided with and can drives the oblique point of driving that the sandwich screw rod is advanced.During use, the rotation cap for brush can drive screw moves ahead or retreats, drive that the pen core that is folded in the screw rod end stretches out or the nib of shrinking back back in.

The utlity model has reasonable in design, be fit to drive the thick pen core of major diameter, and have the controlled characteristics of turnover pen core length, can be widely used in making the sketch pen of 2B examination special pens and each model, perhaps crayon core and chalk etc., reduce directly contact pen core of finger, use cleaning, hygienic environment-protecting.

Description of drawings:

Below in conjunction with concrete legend the utility model is described further:

Fig. 1 rotates the propelling pencil profile

Fig. 2 rotates propelling pencil knockout profile

Fig. 3 shaft of a writing brush profile

Fig. 4 cap for brush schematic diagram

Fig. 5 Fig. 4 A-A profile

Fig. 6 screw rod schematic diagram

Wherein

1-nib 2-shaft of a writing brush 21-bulge loop 22-drives oblique point

The axial protruding rail of 3-cap for brush 31-salient point 32-stabilizer tab 33-

34-pen clip 4-screw rod 41-external screw thread 42-dop

43-fluting 44-guide groove 5-pen core 6-elastomer

The specific embodiment:

See figures.1.and.2, a kind of rotation propelling pencil includes nib 1, the shaft of a writing brush 2, the cap for brush 3 and sandwich screw rod 4, and the end of the cap for brush 3 is fixed with a pen clip 34, perhaps the cap for brush 3 ends be provided with one can press from both sides establish with holding of ccontaining erasing rubber recessed.Each part can be made by plastic cement or metal material.The shaft of a writing brush 2 is screwed onto on the nib 1, and the cap for brush 3 one ends are plugged in the shaft of a writing brush 2 for dynamic fit structure radially.

With reference to Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the shaft of a writing brush 2 inwalls are provided with a bulge loop 21, and are provided with a salient point 31 that cooperates with it on the cap for brush 3 at least, and the cap for brush 3 inserts back salient point 31 and slips over bulge loop 21, forms radially dynamic fit structure.The salient point 31 that the general cap for brush 3 is provided with two symmetries gets final product, but adopt the salient point 31 structure mat cap for brush 3 strains and slip over bulge loop 21, and it is wherein limited, and the cap for brush 3 also is provided with a balance bulge loop 32, cooperate the axiality that keeps with the shaft of a writing brush 2 with two salient points 31, and cooperate more closely, rolling appears in the cap for brush when avoiding rotating.

As Fig. 5, be provided with axial protruding rail 33 in the cap for brush 3, and sandwich screw rod 4 upper ends that have an external screw thread 41 are provided with the guide groove 44 that can slide on this axial protruding rail 33, in case the rotation cap for brush 3, the i.e. transfer synchronously of screw rod 4; As Fig. 3, nearly thread segment ends are provided with and drive tiltedly point 22 in the shaft of a writing brush 2, drive tiltedly point 22 and are meshed with the external screw thread of screw rod 4, and when the cap for brush drove screw rod 4 rotations, static relatively driving tiltedly point 22 can force screw rod 4 rotations to move ahead, and realizes the turnover adjusting of pen core.

As Fig. 6, screw rod 4 one ends are provided with one and can press from both sides toward the dop 42 of location pen core 5, dop 42 has axially grooved 43, outside slotted line, be arranged with an elastomer 6, elastomer 6 can be as the rotation spring among Fig. 1, also rubber ring or becket, and elastomer 6 sheathed dop slotted lines become the waist drum shape, elastomer 6 effect that can produce the dop 42 that clamps or loosen in the displacement of waist drum section like this is so that with the operation of the pen core 5 of packing into.

As shown in Figure 6, screw rod 4 can only be provided with ccontaining and gap clamping pen core 5 in dop 42 parts, but also entire body is provided with through hole, can collect pen core 5 in the through hole.And for example Fig. 1, Fig. 2, because the thick pen core 5 of major diameter, the intensity of itself is big, need not extra pillar etc., gets final product so need be folded in screw rod 4 ends, along with the spinning in and out of long bolt.

Claims

1, a kind of by nib, be screwed in the shaft of a writing brush on the nib, be plugged in the rotation propelling pencil that the cap for brush on the shaft of a writing brush and pen core are formed, it is characterized in that the cap for brush one end is plugged in the shaft of a writing brush for dynamic fit structure radially, be provided with axial protruding rail in the cap for brush, one external screw thread sandwich screw rod is arranged among the cap for brush and the shaft of a writing brush, sandwich screw rod bottom is provided with one and can presss from both sides toward the dop of location pen core, the upper end is provided with the guide groove that can slide on the axial protruding rail of the cap for brush, the shaft of a writing brush is provided with and can drives the oblique point of driving that the sandwich screw rod is advanced.

2, a kind of rotation propelling pencil according to claim 1 is characterized in that shaft of a writing brush inwall is provided with a bulge loop, and is provided with a salient point that cooperates with it on the cap for brush at least, and the cap for brush inserts the back salient point and slips over bulge loop, forms radially dynamic fit structure.

3, a kind of rotation propelling pencil according to claim 1 and 2 is characterized in that the cap for brush also is provided with a balance bulge loop.

4, a kind of rotation propelling pencil according to claim 1, it is axially grooved to it is characterized in that dop has, and is arranged with an elastomer outside slotted line.

5, a kind of rotation propelling pencil according to claim 4 it is characterized in that elastomer is the rotation spring, and the sheathed dop slotted line of rotation spring becomes the waist drum shape.

6, a kind of rotation propelling pencil according to claim 1 is characterized in that the end of the cap for brush is fixed with a pen clip.