CN2300516Y

CN2300516Y - Automatic core-propelling pencil

Info

Publication number: CN2300516Y
Application number: CN 97238117
Authority: CN
Inventors: 张国宏; 郑铁军
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-04-29
Filing date: 1997-04-29
Publication date: 1998-12-16
Anticipated expiration: 2007-04-29

Abstract

The utility model discloses an automatic pencil core-feeding pencil, composed of a pencil sleeve, a pencil holder, a rubber ring, a spring, a pencil core clamp, etc. When the automatic pencil core-feeding pencil is used for writing, a pencil core sleeve is pressed into a pencil cavity by the force produced by the contact of the pencil core sleeve and paper, while a pencil core extends out of the pencil cavity, and thus the purpose of automatic pencil core feeding is obtained. With simple structure, and convenient operation, the utility model does not need other auxiliary tools in changing pencil cores, and the state that pencil cores fall and break does not occur. Thus, the utility model is an ideal writing and drawing tool.

Description

Automatically send pencil

The utility model belongs to the pencil that can send core automatically of writing, using when drawing.

The propelling pencil that existing market is sold mostly needs to push nib, and pen core just can stretch out, and the length that its pen core stretches out is restive, thereby very easily comes off and fracture.

When being a kind of writing is provided, the purpose of this utility model can send the pencil of core automatically.

The purpose of this utility model is achieved in that pencil-lead is sleeved on concentric pen core cover, rubber ring, among the pen core folder, when writing, if pen core is too short, the pen core cover will contact and be pressed in the chamber with paper, but pencil-lead is wherein clamped and can't enter in the chamber by the random notes core retainer plate by the pen core folder, pencil-lead has just been stretched automatically with respect to the pen core cover, but, when the pen core cover breaks away from paper, spring in the chamber will force the pen core cover to stretch out to reset, and at this moment, the pen core folder unclamps pencil-lead, pencil-lead will be stretched out synchronously by rubber ring clamping random notes core retainer plate, thereby realize sending automatically the purpose of core.

The utility model is described in further detail below in conjunction with accompanying drawing.

Accompanying drawing 1 is an axial cutaway view of the present utility model;

Accompanying drawing 2 is front views of the utility model pen cap;

In the accompanying drawings, the pen cap (4) is sleeved in the penholder (9), and the common formation of inner chamber of the inner chamber of the pen cap (4) and penholder (9) is sent the inner chamber of pencil automatically.For the ease of the taking-up and the insertion of the pen cap (4) when changing pencil-lead, the special decorative pattern (12) that on the outer surface of cone of the pen cap (4), is pressed with.Pen core cover (2), rubber ring (3), spring (5), steel ball (6), pen core folder (7), interior cover (8) are arranged in the inner chamber of the pen cap (4).Pencil-lead (1) is sleeved on the center of pen core cover (2), rubber ring (3), pen core folder (7).Rubber ring (3) is fixed tightly in the stairstepping inner chamber of pen core cover (2).Interior cover (8) is fixed tightly in the inner chamber of the pen cap (4), and interior cover (8) is run through by cylindric and round table-like inner chamber.When use the utility model is write or drawn, if pencil-lead (1) stretches out too in short-term, pen core cover (2) will contact with paper and be pressed under the effect of the power of writing in the chamber, and at this moment spring (5) will force the direction motion of pen core folder (7) to cap (11).But, under the common effect of the round table-like inner chamber of interior cover (8) and steel ball (6), pen core folder (7) can't be to the direction motion of cap (11), and can only and clamp pencil-lead (1) to the axis direction motion, at this moment, clamped pencil-lead (1) will stretch out from pen core cover (2) by rubber ring (3).When pen core cover (2) when leaving paper, spring (5) will impel pen core cover (2) to stretch out in the chamber to reset, pen core folder (7) also can move to the nib direction thereupon, steel ball (6) breaks away from the inner chamber of interior cover (8), pen core folder (7) unclamps pencil-lead (1), at this moment, pencil-lead (1) stretches out random notes core retainer plate (2) under the clamping of rubber ring (3) synchronously in a chamber.Pencil-lead (17) can be set with respect to the length that pen core cover (2) stretches out, and its length preferably is controlled at about 0.6mm to well.Change for the ease of the wiping in the writing process, on penholder (9), also be provided with rubber (10).

The utility model is simple in structure, and is easy to use, do not need other aids when changing core, and when writing, pen core stretches out the length of setting automatically, the situation that pen core comes off and fractures can not occur, and is the comparatively ideal instrument of writing and painting.

Claims

1, a kind of pencil that send automatically, form by institutes such as the pen cap, penholder, caps, it is characterized in that pen core cover (2) is arranged in the inner chamber of the pen cap (4), rubber ring (3), spring (5), steel ball (6), pen core folder (7), interior cover (8), pencil-lead (1) is sleeved on the center of pen core cover (2), rubber ring (3), pen core folder (7).

2, a kind of pencil that send automatically as claimed in claim 1 is characterized in that interior cover (8) is run through by cylindric and round table-like inner chamber.

3, as claim 1,2 described a kind of pencils that send automatically, it is characterized in that on the outer surface of cone of the pen cap (4), being pressed with decorative pattern (12).