CN2178635Y

CN2178635Y - Movable pencil with moving rubber

Info

Publication number: CN2178635Y
Application number: CN 93246314
Authority: CN
Inventors: 徐健
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-11-17
Filing date: 1993-11-17
Publication date: 1994-10-05
Anticipated expiration: 2003-11-17

Abstract

The utility model relates to a movable pencil with a movable eraser. An eraser pipe of which the inner part is provided with a long cylindrical eraser of which the length is about more than 40 millimeters is arranged in a hollow cavity of the existing movable pencil. The eraser pipe is provided with a round convex shoulder and a conical shoulder, and a spring which is inserted in a pencil cap is sheathed on the eraser pipe. The top end of the pencil cap is matched with a movable sleeve. Finally, the eraser pipe is sheathed with a core storage push pipe. Namely, a movable pencil with a movable long eraser is formed. The utility model has the property of the movable pencil and has the eraser for use. Thereby, the requirements of users are satisfied, and the technical field of the existing movable pencil is enlarged correspondingly.

Description

Movable pencil with moving rubber

The utility model relates to a kind of propelling pencil that can make up with the rubber of activity.

The propelling pencil of being sold in the market or people are used, its pencil tail end all is equipped with the cylindrical rubber of a fritter, the lid that supplies people to be used to wipe writing and to store up pipe as movable lead; Have also on rubber with one piece of fine needle, for the usefulness of the mediation pencil tip mouth of pipe.Because this piece rubber is very little, in fact can not often use, because buy nowhere after using up, it is also non-easy often to change.So,, often want big rubber of adapted if often use propelling pencil.But in daily life, many people ransack everywhere for looking for a rubber, and time-consuming delaying work is very inconvenient.

Task of the present utility model is to increase a control device that mobilizable rubber is arranged on original propelling pencil, and increases the amount of the cylindrical rubber of this piece, to extend working time.

The utility model is to implement like this:

Present commercially available propelling pencil, its total length is generally the 130-140 millimeter, the back half of whole pen, it is empty being about 1/3 of pencil length overall, this cavity is former to be fixed for the overall ratio of adjusting penholder.Utilize this a part of vacant part of penholder now, load onto one long be the cylindrical rubber of millimeter surplus in the of 40, and make this rubber can be as the device of the random flexible and replacing of propelling pencil lead for retractable pencil.

The device of movable rubber is such: identical with the basic principle of the lead for retractable pencil retractor device of propelling pencil, the device of the movable rubber of this cover comprises the cap for brush, rubber catheter, kink, spring, cylindrical rectangular rubber, and penholder, storage core ejector sleeve are done suitably to revise to form.

Opening two " 7 " shape grooves on two relative positions on the inner rim of the shaft of a writing brush afterbody of propelling pencil, its horizontal edge is called circumferential slot, and the cross section of this groove is a right-angled trapezium, and vertical edge is called axial groove.When snapping in the right-angled trapezium key of rubber catheter in the circumferential slot, penholder can promote rubber catheter by this key, when slightly rotating penholder makes the right-angled trapezium key of rubber catheter aim at the axial groove of " 7 " shape groove, and the top that promotes the cap for brush, can promote storage core ejector sleeve by rubber catheter.As the normal activity pencil lead for retractable pencil is released.

The structure of the wedge head pawl of rubber catheter is that the tapered end from conduit begins to open some elastic grooves at catheter wall vertically, to form wedge head pawl and pawl arm thereof.This pawl can divide 2 pawls, 3 pawls, 4 pawls, 5 pawls, 6 pawls, and so the many again intensity that will reduce pawl of pawl are 3-4 pawl preferably.The length of pawl arm is 2/3 of rubber catheter length overall, is provided with a circular crossette on the excircle of the rubber catheter at the bottom line place of elastic groove, establishes a taper crossette on the excircle at about 1/2 place of pawl arm, and its awl end is towards wedge head pawl.The tail end of rubber catheter is provided with the right-angled trapezium key, and during circumferential slot in this right-angled trapezium key snaps in " 7 " shape groove of the shaft of a writing brush, rubber catheter just is axially locked.Promote the cap for brush to the nib direction, can release activity rubber.If when penholder was slightly rotated to axial groove, rubber catheter can promote to store up the core ejector sleeve and move, make movable lead flexible.The afterbody of storage core ejector sleeve and the afterbody of rubber catheter with the interference fit joint method with the afterbody of two pipes to slotting, this interference fit joint method can be simplified mould and releasing process.Certainly also available thread connection method.

On the inner periphery of the cap for brush, with identical angle the right-angled trapezium die stop is set vertically, the quantity of die stop is decided according to the elastic groove quantity of the wedge head pawl of rubber catheter, and 3 grooves are that 3 keys, 4 grooves are 2 keys or 4 keys, and the width of key should be less than the width of groove.Also be provided with a circle taper crossette on the inner periphery of the cap for brush, this taper crossette awl baseplane should be touched mutually with the baseplane of the taper crossette of rubber catheter wedge head claw portion.Cap for brush head has the rectangular opening of two symmetries, also is furnished with pen clip on the cap for brush.

Kink cylindrical top is provided with crossette, and the bottom is provided with the square key of two symmetries, and the width of key is slightly less than the width of cap for brush head rectangular opening, and key length should be less than the length of rectangular opening, and there are 45 ° of chamferings the termination of key.The following portion of the crossette of kink opens the elastic groove of four symmetries vertically.

The external diameter of spring should be less than the internal diameter of cap for brush pipe, and the internal diameter of spring should be greater than the external diameter of rubber catheter.

The diameter of the cylindric rubber of strip is slightly less than the internal diameter of rubber catheter, but should be slightly larger than the key top diameter of cap for brush die stop.

During assembling, earlier kink is inserted cap for brush top, the square key of kink is snapped in the rectangular opening of the cap for brush, again with spring housing on the wedge head pawl of rubber catheter, the die stop that makes pawl arm on the wedge head pawl of rubber catheter aim at the cap for brush inserts in the cap for brush pipe, and spring one end is stuck on the round crossette of rubber catheter, and the other end is stuck on the die stop of the cap for brush, after the taper crossette of rubber catheter slipped over the taper crossette of the cap for brush, the planar ends of these two shoulders was touched mutually and is closed.The cylindrical rubber of strip is inserted in the end opening of rubber catheter from cap for brush oral area.At last " 7 " shape groove of penholder is aimed at the right-angled trapezium key of rubber catheter, will be stored up the core ejector sleeve and insert in the rubber catheter, promptly finish whole assembly works.

During use, rotation more a little on one side, the hypotenuse of circumferential slot of " 7 " shape groove of the hypotenuse of right-angled trapezium key of rubber catheter and penholder is compressed, promote the penholder pipe to cap for brush top orientation on one side, can promote rubber catheter moves to cap for brush top, block and slide to round crossette place under the spring on the rubber catheter, and the other end of spring is blocked by the die stop of the cap for brush.Compression spring when penholder promotes, this moment, the wedge head pawl of rubber catheter moved forward, and drove kink and slightly moved, and last wedge head pawl breaks away from kink and stretches out cap for brush top, this moment, rectangular cylindric rubber also moved forward, and promptly unclamped penholder, spring reset, wedge shape pawl withdrawal drives the kink reversion, makes that rubber is left alone without help to stay put.After kink moved and ended, the wedge head pawl of rubber catheter continued retraction, to wedge head pawl be forced to curve inwardly hold rubber tightly till, then rubber is fixed.If the end user promotes penholder continuously discontinuously, the cylindrical rubber of this strip can be continuously removed by the lead for retractable pencil as the propelling pencil so.Equally also rubber can be pushed when wedge head pawl stretches out cap for brush top in the wedge head pawl of rubber catheter and preserve, thereby make rectangular rubber of the present utility model capable of expansion and contraction, thereby reach goal of the invention as the lead for retractable pencil of propelling pencil.

The utility model is on the architecture basics of original propelling pencil, has increased the device of movable rubber in the cavity of penholder.So the end user can still catch penholder with usual way, with the top that thumb is pressed the cap for brush, can promote the cap for brush, rubber catheter driving storage core ejector sleeve, release lead for retractable pencil, reach the function of propelling pencil.

When rubber uses up, can buy identical cylindrical rubber, press penholder, stretch out the wedge shape pawl, rubber is inserted in the pawl pipe to the appropriate location, unclamp finger, the withdrawal of wedge shape pawl can recover normal use.The penholder of also can leaving behind adds rubber in rubber catheter.

The repertoire that this has the propelling pencil of movable rubber rubber stopper to be arranged equally or place the mediation pin of the present utility model.

To do detailed elaboration to the utility model with reference to the accompanying drawings below.

Fig. 1 is a propelling pencil assembly structure schematic diagram of the present utility model;

Fig. 2 is the pen cap structure schematic diagram, and 2a, 2c/A-A, 2d/B-B are cut-away view, and 2b is a left view,

Fig. 3 is the kink structural representation, and 3a, 3c/A-A are cut-away view, and 3b is a left view;

Fig. 4 is the rubber catheter schematic diagram, 4a, and 4c/A-A, 4d/B-B, 4c/C-C are cut-away view; 4b is a left view;

Fig. 5 is the structural representation of penholder afterbody " 7 " shape groove, and 5a, 5c/A-A are cutaway view, and 5b is a left view;

Fig. 6 be rubber catheter with the right-angled trapezium of penholder strong with groove cooperate slightly postrotational driving schematic diagram.

With reference to accompanying drawing, a kind of structure of the propelling pencil with movable rubber is such.

In the cavity of existing propelling pencil, the movable rubber device of a cover is set, this covering device comprises the penholder and the Chu Xin ejector sleeve of the former propelling pencil of the cap for brush, rubber catheter, kink, spring, cylindrical rectangular rubber and process modification part-structure.In addition, the structure of former propelling pencil does not all change.

These members of movable rubber are to cooperate like this: earlier kink (11) is inserted the top of the cap for brush (10), make key (14), hole (15) fit.In addition spring (6) is enclosed within wedge head pawl (12) part of rubber catheter (3), the wedge head pawl (12) of rubber catheter (3) is inserted in the cap for brush (10), spring (6) one ends are stuck on the round crossette (5) of rubber catheter (3), and the other end is stuck on the thrust key (7) of the cap for brush (10).Advance rubber catheter (3), the plane that makes plane and the awl of rubber catheter (3) of the awl shoulder (13) of the cap for brush (10) take on (9) is touched mutually and is closed.Again the bottom tube mouth of rectangular cylindrical rubber from rubber catheter (3) inserted, then this bottom tube mouth and storage core ejector sleeve (2) are plugged together.Right-angled trapezium key (16) on rubber catheter (3) mouth of pipe is snapped in the circumferential slot of " 7 " shape groove of penholder (1).Whole linkage editors of the propelling pencil of the movable rubber of this band have just been finished.

Before the use, with hand penholder (1) is pushed up to the cap for brush (10), spring (6) is compressed, the wedge head pawl (12) of rubber catheter (3) is ejected the top of the cap for brush (10), wedge head pawl (12) unclamps, and rectangular cylindrical rubber exposes by the top of the cap for brush (10), promptly unclamps hand, penholder (1) restores because of resetting of spring (6), and rubber is fixing by wedge head pawl (12).Repeat above-mentioned action, can make that rubber catheter (3) and wedge head pawl (12), kink (11) constantly move, opening and closing, recovery, rubber is freely stretched.

When the mobile lead for retractable pencil of needs, only need penholder (1) is slightly revolved, the top (tool rubber place) of cap (10) of starting writing that press...withes one's finger again, rubber catheter (3) promotes the storage core ejector sleeve (2) of storage lead for retractable pencil, then is that the device of pushed propelling pencil moves lead for retractable pencil, and is flexible.

Claims

1, a kind of propelling pencil with movable rubber, be that the member that whole members by former propelling pencil are equipped with movable rubber combines, the member that it is characterized in that this movable rubber is by the pencil holder (1) of remodeling, storage core ejector sleeve (2) and the cap for brush (10), spring (6), rubber catheter (3), kink (11), wedge head pawl (12), rectangular cylindrical rubber formation; During assembling kink (11) is inserted the cap for brush (10), make square key (14) and rectangular opening (15) fit, go up cover upper spring (6) at the wedge head pawl (12) of rubber catheter (3), and insert in the cap for brush (10), one end of spring (6) is stuck on the die stop (7) of the cap for brush (10), the other end is stuck on the round crossette (5) of rubber catheter (3), and the plane of the awl of the cap for brush (10) shoulder (13) and the awl of rubber catheter (3) are takeed on the plane of (9) and are touched mutually and close, put into rectangular cylindrical rubber in rubber catheter (3), the right-angled trapezium key (16) with rubber catheter (3) mouth of pipe place snaps in the right-angled trapezium circumferential slot of " 7 " the shape groove on penholder (1) inwall again.

2,, it is characterized in that the pawl arm of its wedge head pawl has the 2-6 pawl, but be preferably the 3-4 pawl according to the propelling pencil with movable rubber of claim 1.

3, according to the propelling pencil with movable rubber of claim 1, it is characterized in that the inner periphery of the cap for brush is provided with the die stop of right-angled trapezium (7), the quantity of die stop is decided according to the quantity of the elastic groove of the wedge head pawl (12) of rubber catheter (3), if 3 grooves can be established 3 keys, 4 grooves can be established 2 keys or 4 keys.

4, according to the propelling pencil with movable rubber of claim 1, the core activity that moves that it is characterized in that propelling pencil is the top of the cap for brush (10) of pressing the device that movable rubber is housed, promote rubber catheter (3), storage core ejector sleeve (2), drive that the device of former movable lead realizes, the cap for brush (10) moves up and down simultaneously.

5, according to the propelling pencil with movable rubber of claim 1, the fit system that is seated that it is characterized in that storing up core ejector sleeve (2) and rubber catheter (3) is an interference fit, but also can be with the method for thread connection.