CN2381501Y

CN2381501Y - Automatic chalk

Info

Publication number: CN2381501Y
Application number: CN 99210764
Authority: CN
Inventors: 关明月
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-05-11
Filing date: 1999-05-11
Publication date: 2000-06-07
Anticipated expiration: 2009-05-11

Abstract

The utility model relates to automatic chalk belonging to the technical field of the subclass of writing or drawing articles of the class of writing or drawing apparatuses; office supplies under the subsection of printing in the section of performing operations and transporting according to the International Patent Classification (IPC), and the code mark is B43K23/016. The utility model is composed of the chalk, a rubbing part, rotary screw threads, a pen body, a chalk holder, a spring, a rotary chalk inlet fastener and a penpoint holder. The utility model is characterized in that the chalk is clamped in the chalk holder controlled in a mode that the spring is propelled by the rotary chalk inlet fastener, and is the automatic chalk having the advantage of practicability.

Description

Automatic chalk

The utility model relates to automatic chalk.(IPC) belongs to operation Department of Transportation by International Patent Classification (IPC), and printing branch is write or drawing appliance, the big class of office appliance, write or the drawing article group clamper pencil connector of pencil or chalk, the wax crayon in the protector of reservoir tip or chalk clamper technical group field.Be numbered B43K 23/016.

At present, existing and once had clamper pencil connector about pencil or chalk, wax crayon in the protector of reservoir tip or chalk clamper group were all done very fruitful effort to the demand of automatic chalk clamper, also once designed many outstanding technical schemes.As declaring of the Decree of Patent Office of China in 1996 by Zhao's intergrowth, Granted publication number is CN2226527Y, China Patent No. (ZL) is: No. 95220250.6 utility model title is the utility model patent of " spiral vermicelli pen clip ", the technical scheme that is adopted, clamper pencil connector at pencil or chalk, wax crayon in the protector of reservoir tip or chalk clamper group technical elements are routine of great value inventions, and it has solved the clamping of chalk effectively to avoid the problem of dirty hand and saving.But still have some deficits, its also be difficult to solve chalk fracture waste and hand by the problem of chalk ash pollution.

The purpose of this utility model is to provide a kind of automatic chalk.With fracture waste and the hand that solve chalk by the problem of chalk ash pollution.

The purpose of this utility model is achieved in that the automatic chalk of this utility model.Mainly by chalk, friction portion, screw screw thread, handwriting, chalk folder, spring, rotation and advance that pen buckle, nib presss from both sides and constitutes.Its major part spring, rotation advance that pen is buckled, chalk is by selecting for use on the market.Handwriting hard plastics injection moulding processing and manufacturing.The middle part of handwriting is to screw screw thread, middle front part in handwriting processes friction portion, the rear portion of handwriting is that the pen button is advanced in rotation, it is spring that rotation is advanced between pen button and the chalk folder, the chalk clamping is in the chalk folder, front end is stuck in the nib folder, and the chalk in the nib folder advances pen by rotation and buckles the chalk stepping that the promotion spring promotes the clamping in the nib folder.So just realized the purpose of this utility model.

The clamper pencil connector of the utility model and original pencil or chalk, wax crayon in the protector of reservoir tip or chalk clamper group technology have been compared an advantage and improvement;

The first, because having designed the rotation of stepping in technical scheme, the utility model advances the pen button, save chalk in the use, and do not pollute hand.Thereby just can more effectively solve chalk fracture the waste and hand by the problem of chalk ash pollution.

Accompanying drawing provides structural representation of the present utility model:

Fig. 1 is the side-looking structural representation of the automatic chalk of the utility model;

Fig. 2 is that the side of the automatic chalk of the utility model is cutd open structural representation;

Fig. 3 is that the side of the automatic chalk of the utility model is cutd open structural representation;

The numbering of parts explanation in the schematic diagram: (1) chalk (2) friction portion (3) screws screw thread (4) handwriting (5) chalk folder (6) spring (7) rotation and advances pen and buckle (8) nib and press from both sides

Below in conjunction with accompanying drawing, the utility model is described further:

As shown in the figure, the automatic chalk of the utility model.Mainly by chalk (1), friction portion (2), screw screw thread (3), handwriting (4), chalk folder (5), spring (6), rotation is advanced pen and buckle (7), nib folder (8) formation.Its major part spring (6), rotation are advanced pen and are buckled (7), chalk (1) by selecting for use on the market.Handwriting (4) hard plastics injection moulding processing and manufacturing.The middle part of handwriting (4) is to screw screw thread (3), middle front part in handwriting (4) processes friction portion (2), the rear portion of handwriting (4) is that pen button (7) is advanced in rotation, it is spring (6) that rotation is advanced between pen button (7) and the chalk folder (5), chalk (1) clamping is in chalk folder (5), front end is stuck in the nib folder (8), and the chalk (1) in the nib folder (8) advances pen by rotation and buckles chalk (1) stepping that (7) promotion springs (6) promote the clamping in the nib folder.So just realized the purpose of this utility model.Thereby just can solve chalk fracture the waste and hand by the problem of chalk ash pollution.

Below by embodiment, the utility model is done more detailed description:

Embodiment 1, in use because chalk (1) is easy to break, put into handwriting (4) after advance pen button (7) and promote springs (6) braking chalk folders (5) and make chalk (1) stepping owing to press rotation, make chalk (1) saving not easy to break, and hand-dirtying-free.Thereby just can realize the purpose of this utility model.

Realize that preferred plan of the present utility model is is material with the rigid plastics, utilize the basic equipment of injection moulding processing factory, take to assemble in batch to produce by batch, the demand with in the supply teaching so just can realize practical value of the present utility model and economic worth better.

Claims

1. automatic chalk, it is by chalk (1), friction portion (2), screw screw thread (3), handwriting (4), chalk folder (5), spring (6), rotation is advanced pen and buckle (7), nib folder (8) formation, the middle part of handwriting (4) is to screw screw thread (3), middle front part in handwriting (4) processes friction portion (2), the rear portion of handwriting (4) is that pen button (7) is advanced in rotation, it is spring (6) that rotation is advanced between pen button (7) and the chalk folder (5), chalk (1) clamping is in chalk folder (5), front end is stuck in the nib folder (8), it is characterized in that chalk (1) is clamped in the chalk folder (5).

2. automatic chalk according to claim 1 is characterized in that chalk folder (5) advances pen by rotation and buckle (7) and promote springs (6) the control step and move.