CN1141853A

CN1141853A - Adjustable propelling pencil

Info

Publication number: CN1141853A
Application number: CN 96106262
Authority: CN
Inventors: 翁金钟
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-05-17
Filing date: 1996-05-17
Publication date: 1997-02-05

Abstract

The adjustable propelling pencil consisting of lead core, nib head, clamping sleeve, clamping chuck, pen-holder, pen-hanger and eraser is characterized by that the lead core is held by clamping chuck, and the degree of thickness of the lead core can be regulated, and the coaxality of the lead core and clamping chuck is good, so that said lead core is not easy to be broken. At the same time, the eraser and lead core tube can be used for regulating length of the pencil, so that it is easy to use, and can save lead core.

Description

Adjustable propelling pencil

A kind ofly form, can freely adjust pen core, pen is long and the adjustable propelling pencil of rubber length, belongs to daily stationery field by nib head, penholder body, rubber, pen hanging tube.

Traditional propelling pencil, at first lead for retractable pencil must just can be write by the supporting role in the splicing sleeve that is located at nib mouth place.There is certain clearance in lead for retractable pencil with the splicing sleeve endoporus, is in the dynamic support state, the lead for retractable pencil that fractures often occurs, and causes the big phenomenon of lead for retractable pencil waste.Its two, chuck and lead for retractable pencil splicing sleeve are divided into two body structures, mutual spacing is far away, both axiality reliabilities that institute's heart lead for retractable pencil is sent into splicing sleeve endoporus process by chuck are relatively poor, the less stable of lead for retractable pencil motion.Its three, a kind of propelling pencil of specification can only be used a kind of lead for retractable pencil.It is four because there is certain distance in chuck with the splicing sleeve port of export, so the length of lead for retractable pencil waste is bigger.Its five, the propelling pencil of rubber is installed owing to be subjected to the restriction of structure, rubber length is shorter, and pen is long non-adjustable.In view of the foregoing, traditional propelling pencil exists many defectives extremely to be solved.

The objective of the invention is to be to overcome the deficiency of above-mentioned traditional propelling pencil, provide a kind of lead for retractable pencil can be in the clamping of same chuck endoporus, coaxial, can use the plurality of specifications lead for retractable pencil, basically little stub bar, rubber and pen are long simultaneously is the adjustable propelling pencil of adjustable length.

The present invention is achieved in that at first chuck, catch, spring is enclosed within on the chuck successively.The chuck threaded portion is screwed in the lead core tube screw, be inserted in the catch gland from the rear portion of lead core tube, the nib head is inserted in from the chuck bare terminal end, compress catch with the catch gland again, the shaft cylinder swivel nut is pressed into shaft cylinder, is contained in then on the catch gland and the nib head compresses the assembling of promptly having finished nib, penholder body.

Secondly, rubber case on the rubber seat, and then is inserted in the pencil barrel afterbody, by 90 ° of V-type guide grooves on the rubber seat, pencil barrel is associated in together with the rubber seat, finished the assembling of rubber assembly with sunk screw.

Again secondly, pen hanging cylinder base cover is packed in the pen hanging tube; Pen hanging is enclosed within on the pen hanging tube and with housing screw pen hanging cylinder base cover, pen hanging tube, pen hanging is fixed on one promptly finished the assembling of pen hanging tube.

At last the above-mentioned pen hanging tube (cap for brush) that assembles is inserted on the rubber seat that assembles above and has promptly finished this self-regulated propelling pencil.

Adjustable propelling pencil basic functional principle of the present invention is, utilize the phenomenon of the outer anti-conical surface of collet with the interior positive conical surface relative motion of chuck, chuck is produced unclamp and clamps action in the nib head, expose the required length of nib mouth and reach automatic adjusting lead for retractable pencil, and clamp lead for retractable pencil automatically, and the work of acquisition purpose function.

Its groundwork process is:

When the time spent of doing that pencil is not subjected to plus load, chuck is subjected in the handwriting mechanism effect of compression spring force, and the outer anti-conical surface that makes chuck fits tightly with the interior positive conical surface of chuck, and chuck is in clamping lead for retractable pencil state.

When outer bound pair pencil applies a thrust (as with a hand push lead extrusion pen hanging tube or knob lid one together collet body be linked together), this thrust makes the chuck that is in clamped condition, chuck, lead for retractable pencil moves forward together (because chuck spring lobe cone angle is less, no external force is done the time spent, this moment, chuck can't be thrown off, still keep clamped condition each other), when they move to pen clip head Inner Front End stop (step surface) when locating, chuck back step face is collided with it, impact force makes the chuck conical surface take off mutually with the chuck conical surface, chuck is in releasing orientation, and lead for retractable pencil also is in relaxed state in this position simultaneously.At this moment, extraneous thrust disappearance (hand leaves pen hanging tube or knob lid), because the effect of compression spring force, force chuck toward swivel motion, and because lead for retractable pencil is in relaxed state, basically still rest on original position (ignoring the effect of factors such as plumbous sandwich and collet bore mantle friction), thereby reach the purpose of feeding; When chuck retreats into certain distance, collide with chuck, pushing away chuck and retreating together; When retreating into nib head back stop (catch is packing ring one by one), chuck back step face is collided with it and can not be moved back again, thereby also stop chuck to retreat, and force the chuck conical surface and the chuck conical surface to fit together fully and closely, make chuck be in the state that clamps lead for retractable pencil again, expose the required active length of nib mouth and the work functions of clamping lead for retractable pencil thereby reach lead for retractable pencil.

If lead for retractable pencil exposes the active length of nib mouth when falling short of, can repeat above-mentioned work, till satisfaction.

When if lead for retractable pencil exposes the active length overlength of nib mouth, can unclamp chuck with the pen mouth towards tilting an angle, lead for retractable pencil be return automatically (or unclamped under the chuck situation, getting back to required length with hand push clamps again), again by above-mentioned operation till the Len req.

Below in conjunction with accompanying drawing embodiments of the invention are described further.

Among the figure: (1) lead for retractable pencil, (2) chuck, (3) chuck, (4) nib head, (5) catch, (6) spring, (7) catch gland, (8) shaft cylinder swivel nut, (9) lead core tube, (10) shaft cylinder, (11) rubber seat, (12) sunk screw, (13) rubber, (14) pen hanging cylinder base cover, (15) shaft cylinder, (16) pen hanging, (17) housing screw.

At first assemble nib, penholder body.Chuck (3), catch (5), spring (6) are enclosed within on the chuck (2) successively.Threaded portion on the chuck (2) is screwed in the screw of lead core tube (9).Be inserted in catch gland (7) from the rear portion of lead core tube (9).Nib (4) is inserted in from the bare terminal end of chuck (2) again screws and compress catch (5) with catch gland (7).Shaft cylinder swivel nut (8) is pressed into shaft cylinder (10), is contained in catch gland (7) and goes up and compress with nib head (4).

Secondly, assembling rubber assembly, rubber (13) is inserted on the rubber seat (11), again said modules is inserted in the above-mentioned lead core tube that installs (9) afterbody, rubber (13) is fitted with the lead core tube end,, lead core tube (9) is bound up with rubber seat (11), and tightens up by the last 90 ° of V-type guide grooves of rubber seat (11) with sunk screw (12).

Secondly assemble the pen hanging cartridge module again, pen hanging cylinder base cover (14) is packed in the shaft cylinder (15), pen hanging (16) is enclosed within the shaft cylinder (15), and pen hanging cylinder base cover (14), straight bar tube (15), pen hanging (16) is tightened together with housing screw (17).

At last,, be inserted on the rubber seat (11) of the rubber assembly that assembles, lead for retractable pencil (1) lead core tube (9) of packing into has promptly been finished adjustable propelling pencil the above-mentioned pen hanging cartridge module (cap for brush) that assembles.

This adjustable propelling pencil lead for retractable pencil is installed.

1, single when filling with substance presses cap for brush screwing (17) that chuck is unclamped with hand push, and lead for retractable pencil is inserted from the chuck mouth, gets final product.

2, many whens filling with substance are pulled up the cap for brush, take off rubber, and lead for retractable pencil is put into lead core tube (this moment, chuck should be in clamp position, in case lead for retractable pencil skids off from the chuck mouth), afterwards the cap for brush are set up again.

The rubber active length is adjusted.

It conveniently is principle to wipe that general rubber exposes active length.Oversize, rubber elasticity is big, is collided with paper in rubber seat end angle.Usually expose active length with 5mm for (when rubber runs low, not bumping paper one by one during vertical operation, be principle) well to use, its length method of adjustment is as follows:

Take off the cap for brush, unclamp sunk screw (12), the heavy nib direction of rubber seat is passed (unclamp at this moment, but still the screw on lead core tube (9), 90 ° of V-type guide grooves along rubber seat (11) slide) required length, then the relative rubber seat of rubber port has just increased by a respective length relatively.When the rubber seat is during towards nib rightabout passing-length, at this moment, the length that rubber exposes has shortened a respective length on the contrary relatively.

The adjustment of pen length.

1, when rubber not being installed, pen is long can to carry out stepless adjustment between 115～138mm.Method of adjustment is exposed the method for adjustment of the length of rubber seat with rubber.That is, when the rubber seat when the nib direction is passed a length, because the cap for brush is positioned on the rubber seat (11), so the cap for brush is also relative to the distance that has moved an equal length toward the nib direction, the long size that just shortens this length of a promptly whole pen; When rubber seat (11) is when the nib rightabout is passed a length, in like manner, the long size that increases this length of pen.

2, when rubber is installed, take up space by rubber length, the long length adjustment scope of pen is restricted and narrows down.It is 30mm that the present invention is designed to rubber installation maximum length starting point, and when this length rubber was installed, pen was about and is 132mm.At this moment, pen is long in principle can only adjust toward increasing, and can transfer on the design margin again and be about 5mm, and can not transfer weak point.Only adjust the corresponding shortening of the long ability of pen with the rubber wearing and tearing in use.Long in order to obtain own required pen, (user can be according to following rule according to own pocket degree of depth situation, the rubber of adapted respective length (on demand will long rubber be cut into respective length use):

During the long rubber of equipped 10mm, pen is long be 118mm, and during the long rubber of equipped 15mm, long is 123mm, and when being equipped with the 20mm rubber, long is 128mm; When equipped 25mm rubber was long, pen is long to be 133mm; During the long rubber of equipped 30mm, long is 138mm; During the long rubber of equipped 35mm, long is 143mm.Above-mentioned all kinds of specification rubber is long, can cover the extension pen needs of current most of garment pocket degree of depth basically.

Claims

1, a kind of by lead for retractable pencil, the nib head, chuck, chuck, the pen core tube, shaft cylinder, the adjustable propelling pencil that pen hanging and rubber seat are formed, it is characterized in that chuck (3), catch (5), spring (6) is enclosed within on the chuck (2) of supporting clamping lead for retractable pencil (1) successively, make chuck (2), chuck (3) is installed in the position of nib head (4), then the threaded portion on the chuck (2) is inserted in the screw of lead core tube (9), catch gland (7) is inserted at the rear portion of lead core tube (9), nib head (4) is inserted in from the bare terminal end of chuck (2) again screw with catch gland (7), shaft cylinder swivel nut (8) is pressed into the afterbody that shaft cylinder (10) is inserted in the rubber assembly lead core tube (9) again, again the pen hanging cartridge module is packed in the shaft cylinder (15).

2, adjustable propelling pencil according to claim 1, the rubber (13) that it is characterized in that described rubber assembly is inserted on the rubber seat (11), puts into lead core tube (9) afterbody again, is fixed together by 90 ° of V-type guide grooves on the rubber seat (11) with sunk screw (12).

3, adjustable propelling pencil according to claim 1, pen hanging tube (14), the pen hanging (16) that it is characterized in that described pen hanging cartridge module are packed in the shaft cylinder (15), and tighten together with housing screw (17).