CN2204237Y

CN2204237Y - Disjuncted cyclic pencil

Info

Publication number: CN2204237Y
Application number: CN 94222246
Authority: CN
Inventors: 王贵林
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-09-21
Filing date: 1994-09-21
Publication date: 1995-08-02
Anticipated expiration: 2004-09-21

Abstract

The utility model provides a disjunct cyclic pencil, comprising a rod head, a rod body, and a tail rod. The rod body is composed of a plurality of segment concaves and convex parts which are matched; the utility model has the advantages of convenient use, and the pencil cores are not easy to break; all components of the pencil are poured with moulds into a single piece. The process is simple, and the utility model is suitable for mass production.

Description

Disjuncted cyclic pencil

The utility model belongs to stationery, is the circulating pencil of a kind of disconnection.

The pencil that present student uses mostly is Wood pencil, needs cut with pencil sharpener before using, and in the process of cutting, lead for retractable pencil is easily broken, but also need remove the wood chip under cutting, and makes pencil simultaneously and need use a large amount of timber.Also have a kind of propelling pencil in the market now, use but the price height not too is fit to the pupil, and lead for retractable pencil is also easily broken in the use.

The purpose of this utility model provides the circulating pencil of a kind of disconnection, penholder is made up of bar head, the body of rod and foot piece, the body of rod is made of the concavo-convex cooperation of effective quantity joint body, easy to use, and lead for retractable pencil is not easily broken, the all available die casting of whole parts of pencil becomes plastic one-piece, and technology is simple, is suitable for a large amount of productions.

The utility model architectural feature is:

This circulating pencil that disconnects, lead for retractable pencil is housed in the penholder, penholder is made up of bar head 2, the body of rod 3 and foot piece 4 mutual tight fits, the body of rod 3 is made of the 5 mutual concavo-convex cooperations of effective quantity joint body, joint body 5 is divided into two parts, and its projection is offered core chamber 6 at the position, axis, and base portion is offered and the friction tight cavity 7 of the protuberance of adjacent segments body 5, the core chamber 6 of joint body 5 communicates with cavity 7, sealing between the core chamber 6 of foot piece 4 and the cavity 7.

The connected mode of joint body 5 can be:

Use thread connection between each adjacent segments body.

Other technical characterictic of pencil is:

The cavity 7 concavo-convex cooperation rubber joints 9 of foot piece 4, assembling rubber 8 in the rubber joint 9.

The joint body size technologies feature of pencil can be:

The body of rod 3 is made up of 18-24 joint body, the high 5-8mm of each joint body base, and the external diameter of base is 10-15mm.

Narrate below in conjunction with drawings and Examples.

Fig. 1 is a part cut-away view of the present utility model.

Fig. 2 is that joint body of the present utility model amplifies cut-away view.

With reference to accompanying drawing is embodiment of the present utility model, between each adjacent segments body 5 with being threaded, the body of rod is made up of 22 joint bodies, the high 6mm of each joint body base, and the base external diameter is 12mm, when the lead for retractable pencil 1 of bar head 2 outsides uses up, appoint and to get a joint body 5 and get off, it is contained in foot piece 4 saves between 9 with rubber, the body of rod 4 length of adorning lead for retractable pencil 1 have like this just shortened, lead for retractable pencil 1 has just reached the outside of bar head 2, just can continue to have used.

The utility model manufacture craft is simple, and price is low, and is easy to use, and not easily broken lead is for numerous students in middle and primary schools' particularly suitable.

Claims

1, the circulating pencil of a kind of disconnection, lead for retractable pencil is housed in the penholder, it is characterized in that penholder is made up of bar head 2, the body of rod 3 and foot piece 4 mutual tight fits, the body of rod 3 is made of the 5 mutual concavo-convex cooperations of effective quantity joint body, joint body 5 is divided into two parts, and its projection is offered core chamber 6 at the position, axis; Base portion is offered and the friction tight cavity 7 of the protuberance of adjacent segments body 5, and the core chamber 6 of joint body 5 communicates with cavity 7, sealing between the core chamber 6 of foot piece 4 and the cavity 7.

2, pencil according to claim 1 is characterized in that using thread connection between each adjacent segments body.

3, pencil according to claim 1 and 2 is characterized in that the cavity 7 concavo-convex cooperation rubbers of foot piece 4 save 9, assembling rubber 8 in the rubber joint 9.

4, pencil according to claim 1 and 2 is characterized in that the body of rod 3 saves body by 18-24 and forms, the high 5-8mm of each joint body base, and the external diameter of base is 10-15mm.