DE3032200A1 - Propelling pencil with automatic lead forward movement - has movable lead guide pipe and spring element adjoining clamping device exerting pressure on it - Google Patents

Abstract

The lead forward movement carried out automatically during writing. The propelling pencil is fitted with a movable lead guide pipe which partly projects from the point of the shaft and has a clamping device to hold the lead during writing. It is also equipped with a spring element located axially between the lead guide pipe and the clamping device and supported at the rear end of the lead guide pipe or by an attachment in contact with it. The rear end (64) of the spring element (63) adjoins the front end (41) of the clamping device (4) and exerts both radial and axial pressure on it. The clamping device (4) is made as clamping tongues acting directly on the lead and has conically extending support zones (44) at least within the pressure area of the spring element. The contact area of the clamping device (4) with the sliding sleeve (77) is made free of restraint.

Description

The invention relates to a filling pencil with when writing itself-

active mine feed, which is an axially movable mine guide tube has that emerges at least partially from the shaft tip, and with a Clamping device to hold the lead while writing and with a spring element is equipped, which extends axially between the lead tube and the clamping device is located and at the rear end of the mine guide tube or at one with this connected or in contact approach supported.

Such a filler pencil is disclosed, for example, in US Pat. No. 3,424 535 known. However, the disadvantage of this known filler pencil is particular in that it is necessary to create a relatively complex clamping system, that in addition to several interacting clamp elements, a multitude of rolling elements has, so that in addition to a particularly susceptible to failure also an extremely expensive writing instrument results.

In addition, it is not possible if it is within the top range Occurring faults, such as in particular with a broken mine and the like, the filler pencil easy to dismantle and easy to clean.

Due to the multi-part clamping mechanism, it is also not always guaranteed that the respective follow-up lead automatically enters the clamping system is introduced or is initially reliably detected by this.

A filling pencil is also known from US Pat. No. 3,864,046 become, whose axially movable mine protection tube is also acted upon by a spring which is supported on the other hand on a clamping device on which a1 with Special pressure elements equipped, another clamping device works.

But here in particular the clamping elements of the first clamping device exclusively due to special clamping parts on the second clamping device Aelangen should, is mainly due to this * / at the mine to effect required high friction a safe functional sequence both when clamping the mine and when they are released for automatic feed not guaranteed.

In addition, the two clamping devices disclosed here again represent relatively complex parts, so that also one according to this prior art formed full lead pen is relatively expensive and also prone to failure is.

Furthermore, this is particularly due to the practically indirect effect No clamping of the lead when writing. guaranteed, as that for this provided clamping tube of the first clamping device over a relatively long axial Area can be brought into effect, so that the mine if necessary with increased writing pressure through this clamping device slips and for writing without renewed complete Feed is no longer usable.

From DE-OS 26 11 608 it is also already known in Filling pencils whose axially movable lead guide tube is controlled by a compression spring is acted upon, in addition to execute the clamping device axially spring-loaded and to bring it to effect by means of rolling bodies.

Here too, however, it is necessary to have an extremely complicated one Construction, both of the mine protection tube and the clamping device, to choose (en. to cause a conditionally automatic lead advance.

It is also absolutely necessary for tracking here the following mine also to press the push button, otherwise the clamping device is not opened sufficiently to automatically introduce the new mine.

The object of the present invention is to provide a simple constructed, particularly inexpensive and easy to maintain, from a few individual parts existing filler pencil to create whose Mine itself analog automatically adjusts to their wear and tear when writing and also the respective Subsequent mines are automatically updated.

This object is achieved in that the rear End of the spring element at the front end of the clamping device under axial and radial pressure is applied to this that the clamping device as direct acting on the mine clamping pliers is formed and at least in the pressure area of the Has spring element conically extending support zones and that the contact zone the clamping device with the clamping bushing or with the sliding bushing free of self-locking is trained.

Some preferred embodiments of the invention and constructive Advantageous features are presented in the subclaims and are described below explained in more detail with the help of the figures.

Here: Figure 1 shows an embodiment with optional push-button actuation, FIG. 2 shows an embodiment without a push button, FIG. 3 shows a sectional view according to the line III - III in Figure 2, Figure 4 is an enlarged partial view of a further embodiment, Figure 5 is an enlarged partial view of the embodiment according to Figure 2, Figure 6 an additional alternative of the execution option, FIG. 7 shows an enlarged representation of the lead guide tube and FIG. 8 likewise an enlarged version of the lead tube in an alternative design Figure 7, Figure 9 a variant of the clamping device The one in figure 1 embodiment shown represents cilaen filler pencil 1, its lead guide tube 2 is arranged axially movably in the removable shaft tip 31 of the housing 3 and has an extension 21, in the extension of which is integrally formed Spring element 63 extends axially into the interior of the pen.

The rear end 64 of the spring element 63 comes here at the conically inwardly tapering support zone 44 of the front end 41 of the clamping device 4 to the system.

By constantly on the front end 41 of the clamping device, even in the rest position 4 acting weak axial and especially radial pressure is the example overall as a pressure-free or spring-free clamping device 4 pressed on radially, so that this is also in the area of the smallest diameter of the bore 48, which is here for the sake of clarity, completely releases or releases mine (5), which is not shown. fails.

However, a clamping device with a radially outward effect becomes more effective If natural springing is selected, the spring element bb or 6) can also be made so short be that it does not rest against the clamping device 4 in the rest position of the pin, but only when writing or

at the beginning of the feed movement applied to the front end.

About the rolling body 47, which is attached to the conical inner bore 73 of the the front end 71 of the axially movable sliding bush 77 will be particularly easy mobility and self-locking free storage of the clamping device inside the sliding bush 77 causes.

The sliding bush 77 is therefore particularly axially movable in this case arranged within the housing 3, so that the possibly existing differences in diameter, those in the manufacture of the clamping device, the conical inner bore, as well as the Rolling bodies can occur, compensate automatically in the simplest possible way.

In addition, this mobility of the manual feed actuation over the cap 9, the front end 81 of the lead tube 85 partially in the rear end 72 of the sliding bush 77, which is radially resilient by means of slots, is inserted and moves them axially back and forth through static friction.

The movement is limited by the collar 78, for example at the end face of the main part 33 and on a stop surface 34 within the shaft tip 31 of the housing 3 strikes. The free axial sliding paths of the sliding bush 77, the Clamping device 4 and the lead tube 85 are to be dimensioned here and on top of one another to agree that when moving the lead tube 85 down, the sliding bushing first 77 acted upon by this and, with indirect entrainment of the clamping device 4, the lead (5) and possibly the lead guide tube 21 is moved towards the pen tip, and that the clamping device 4 only when the sliding bush 77 touches the stop surface 34 has reached, also acted on directly from the front end 81 of the mine tube 85 and is forcibly taken further, which opens it and the mine (5) releases. When you let go of the cap 9 and slide back the mine tube 85 is shown in reverse sequence of the spring element 6 or 63 first the clamping device 4 and then the sliding bush 77 moved backwards.

When the rest position is reached, the clamping device 4 initially remains still open while it is through the extra pressure when writing over the conical inner bore 73 and the roller body 47 closes and the mine holds.

The lead guide tube 2 is in the rest position with the front of the attachment 21 at the base of the enlarged bore inside the shaft tip 31 and extends around the usual or desired sliding tube projection of e.g. 4 to 6 mm out of the shaft tip 31. An inner stop is unnecessary if sufficient inner glide path is present.

The clamping device 4 also has radial slots 45 which these penetrate almost completely axially, creating a particularly soft radial Mobility of the clamping device is achieved.

With the rear end 42, which has a conical lead inlet 49 comprises, the clamping device 4 is within the front end 81 of the mine storage space 8 forming the mine tube 85 axially movably relative to this guided, the guide is to be designed so that the rear end 42 without friction in the front End 81 slides and with axial pressure opposite in the axial direction this is displaceable, which in turn makes manufacturing tolernazen extremely simple Way can be balanced and the manual lead advance via the Cap 9 is effected in the manner described above.

Above the rear end 72 of the sliding bush 77 is a compression spring 67 arranged, which is supported on a transverse web of the housing 3 and with the Help on request of the lead advance via the lead tube 85 and via the push button acting cap 9 can be made.

The mine storage space 8 has at its lower end one for the better Slip the mine serving inlet slope 83 and is at its rear End 82 by an eraser element 10, in which a cleaning needle 11 is arranged, locked.

For the axially limited introduction of the eraser element 10 is used Cuff 12, while the axial limitation of the mine tube 85 to the rear a stop 84 takes place, which in turn is on a corresponding bead on Main part 33 is supported.

In the case of the filler pencil 1 shown in FIG. 2, this is located axially sliding mine guide tube 2 also n dc Sdaftspitie 31 of the housing 3 and has an approach 21 on which a - here designed as a helical compression spring - Spring element 6 is supported.

The rear support of the spring element 6 takes place on the inwardly tapering conical support zone 44 of the front end 41 of the clamping device 4, as a result of which the rolling elements 47 mounted in recesses 46 are also attached here the conical inner bore 73 in the front end 71 of the clamping sleeve 7 come to rest. The clamping sleeve 7 is arranged in an axially immovable manner in the main part 33 of the housing 3 and serves with its rear end 72 at the same time the rear end 42 of the Clamping device 4 for its axially sliding guide.

The through hole 48 of the clamping device 4 closes a conical lead inlet 49 at the rear end 42.

For axial tolerance compensation and, in particular, for enabling the automatic mine transport when writing or when setting down of the pen from the writing pad, the clamping device 4 is axially light movably mounted within the clamping bush 7 and free of self-locking in the conical Inner bore 73 of the clamping sleeve 7 held while writing.

The mine storage space 8 within the main part 33 and the rear Section 32 of the housing 3 is here also covered by a cap 9 Eraser element 10 closed, into which a cleaning needle 11 is inserted. At the Eraser element 10 is also again a sleeve 12 its axial limitation.

In the sectional view according to FIG. 3, in particular, a Half-shell design of the front ends 41 of the clamping device (4) recognizable, to which a roller body 47 assigned to each half-shell is connected, which comes to the system at the clamping bush 7.

The separation of the two halves of the clamping device (4) is made by the radial slots 45 causes the clamping body starting from the bore 48 penetrate completely radially. The clamping sleeve 7 is surrounded by the housing 3.

FIG. 4 shows, in enlarged form, an alternative embodiment of a Filling pencil, which, similar to that shown in FIG of the housing 3 has axially movable sliding bush 77, the through-hole thereof 74 continues as a conical inner bore 73 which widens towards the front end. within which the roller bodies 47 slide axially movably and thus during the writing process Via the front end 41 of the clamping device 4, the radial clamping pressure on the Mine 5 effect.

On the mine guide tube 2 there is also an approach 21 which is here at the same time developed as a mine brake 22 and from the outside by the front end 61 of the spring element 6 can additionally receive radial compressive stress.

The rear end 62 of the spring element 6 lies on the support zone 44 of the front end 41 of the clamping device 4 and thus causes its axial and pressurization directed radially outward.

A mine 5 is followed by a conical mine inlet 49 Follow-up mine which has already automatically fallen into the bore 48 of the clamping device 4 51 at.

As can clearly be seen, the extremely long radial slots 45 again cause a particularly light and sensitive radial own or load-related suspension of the front ends 41 of the clamping device 4, after the individual resilient segments only over a relatively short rearward Ends 42 are fully interconnected and with no friction within the front End 81 of the lead tube 85 are held or moved.

The compression spring 67 and corresponding adjustments between the mine tube 85, the clamping device 4 and the sliding bush 77, as well as the stop surface 34 allow also here an additional optional actuation of the clamping mechanism by hand, whereby the sliding bush 77 in turn has radial slots at its rear end 72, to with the front end 81 of the Mi nen tube 85 during certain phases of Hand-induced movements to be able to enter into clamping operative connection.

The enlarged representation of the embodiment shown in FIG according to Figure 2 can be seen in particular that on the lead tube 2 or on its Approach 21 an additional mine brake 227 for the fixed reception of the front end 61 of the housing 3 is used. The rear end 62 of the spring element 6 is also located here at the support zone 44 of the front end which tapers inwardly 41 of the clamping device 4. Furthermore, at the front end 41 of FIG is present and that a centering means 23 Clamping device 4 a recess 46 for receiving a roller body 47.

The here again as axially immovable and with the main part 33 of the housing 3 firmly connected clamping bushing 7 has at its front end 71 in extension of its through hole 74 on a conical inner bore 73 which enlarges towards the front and shows a collar 78 as an assembly stop or as an axial limit for the clamping sleeve 7 par excellence.

On the clamping device 4 it can also be seen that its radial slots 45 in turn almost completely penetrate the clamping body axially, so that only at the rear end 42 there is a short all-round connected section is.

The rear end 42 also has a mine storage space 8 towards / conical mine inlet 49, which on the other hand continues in the bore 48 and forms the lower end of the mine storage space 8.

At the same time, the rear end 42 of the clamping device 4 is inside of the rear end 72 of the clamping sleeve 7 guided axially sliding without friction.

The embodiment according to FIG. 6 also corresponds in principle the embodiments shown in Figures 2 and 5. In contrast to this, however this full pencil 1 has an additional sleeve 37 on which a clip 13 is specially designed and arranged such that its locking lug 14 within a notch 15 of the cap 9 can come to rest when the cap 9 is pressed is, in addition to this, the filler pencil, which is designed as an insert body as a whole to be arranged completely retractable within the sleeve 37 so as to be axially slidable.

In principle, this variant therefore also has an eraser element 10 with a cleaning needle 11 and a storage space 8, the front end of which from a lead inlet 49, which is arranged at the rear end of the clamping device) 4 is, is completed, on. The clamping device 4 also slides axially here within the clamping sleeve 7, which in turn is fixedly arranged in the housing 3 is.

i expanding The mines can also do this - as well As with all the above-described versions - via the bore 48 free up to the at the approach 21 arranged mine brake fall within the shaft tip 31. That Mine guide tube 2 is in the form shown in the sunk position inside the sleeve 37.

In the preparation of the pen is only ready for use to press on the cap 9 until the locking lug 14 slides into the notch 15 of the cap. The pencil is ready to write in this way, as the lead guide tube is in this phase 2 has emerged from the tip bore of the sleeve 37, so that the pin in the usual Way can be used. To lower the lead tube or to move it back the inner part of the pin or the entire housing 3 is only on the front 13 clip area to press - or. the locking lug 14 to lift off radially in some other way -, whereby the locking lug 14 is unlocked and the housing with the cap to the rear pulled or by an additional compression spring arranged between the housing and the sleeve can be pushed backwards.

Of course, this design can also be used with others Latching and lowering mechanisms - for example with conventional ballpoint pen mechanisms - Equip without departing from the scope of the present invention. as well the protection of the mine guide tube can also be done by other means, e.g. be done by simple loose or fixed or adjustable protective caps.

FIG. 7 shows an enlarged illustration of the lead guide tube 2, in the fixed extension 21 of which an opening 24 is incorporated, in which a section 65 of the spring element 6 is held, whereby this section 65 at the same time as a mine brake for the axially within the mine guide tube 2 moving mine (5) is used.

At the approach 21 there is also a centering means 23 for the fixed Recording of the spring element 6, designed here as a helical compression spring.

Figure 8 shows an alternative embodiment of the approach 21 on Mine guide tube 2, the mine 5 being formed here by one on the approach 21 Mine brake 22 is held, the radial brake pressure by one from the Spring element 6 formed clamping ring 66 causes or is reinforced.

The mine brake 22 is here by radially slotted extensions of the approach 21 is formed.

In this embodiment in particular, an integral one is also available Formation of lead tube 2 and approach 21 made of plastic or metal at.

FIG. 9 shows an embodiment alternative to the previous representations the inventive idea in the rest position. Here is the face of the front End 41 of the clamping device 4 as expanding conically outwards and backwards Support zone 43 is formed on which the rear end 62 of the spring element 6 supports.

The clamping device 4 has inherent springing acting radially outward on, the individual clamping segments in the shown rest position of the pin keeps open so that the mine can freely fall through to the mine brake. Accordingly the length and the compressive force of the spring element 6 must also be coordinated.

Only by the - transmitted by the spring element 6 - additional Writing pressure is, with the help of the rolling elements - here inside the clamping sleeve 7 are mounted in the housing 3 - and the rear clamping bevels 16 on the front End 41 of the clamping device 4, which causes the mine to be firmly clamped.

When lifting the lead guide tube (2) from the writing pad this clamping is released due to the self-locking-free storage between the Clamping device 4 and the clamping sleeve 7 immediately again, so that the mine only is held by the mine brake (22) and thus with this and the lead tube 2 moved forward again.

There is a relative movement between mine {5) and mine guide tube (2) therefore always only during the writing process itself and always only in such a way that the Mine guide tube (2) opposite the mine (5) to the rear - to the clamping device 4 moved while the mine practically stops. (Exception: the first to be introduced Mine) This functional sequence is in all embodiments of the inventive concept same.

The further mode of action of the described by means of the above examples Invention can be represented as follows: The first of the in the mine storage room 8 filled mines 5 - which are followed by the subsequent mines 51 - falls first via the lead inlet 49 or 83 through the bore 48 of the clamping device 4 to to the mine brake 22 within the extension 21 on the mine guide tube 2.

After placing the lead guide tube 2 on the writing pad several times - or after repeated pressure on the cap 9 in the case of the embodiments according to FIGS 4 - the mine 6 is moved forward within the mine guide tube 2 until it at the end of which emerges and is available ready for writing.

Each time the lead guide tube is placed on the writing pad - e.g. every time the pen is set down while writing - the lead will then around the previously written off area - as described - automatically e leads, as they are caused by the pressure of writing when moving backwards held by the clamping device or its front end and when it is lifted off of the writing pad and thus of the due to the spring elements 6; 63 caused axial movement towards the front or towards the pen tip and the simultaneous radial clamping or friction of the mine brake 22 together with the lead guide tube 2 up to its stop on the shaft tip 35 is taken in front.

The essence of the invention is based on the fact that the Clamping device 4 in the rest position or in the relaxed state, i. E.

if the pencil is not used, no radial clamping effect whatsoever exerts on mine 5, while this mine 5 at minor axial additional pressure - for example when writing - through the lead guide tube via the spring elements 6 or 63 Z due to the inwardly directed radial action, for example the conical inner bore 73 of the clamping bush 7 or the sliding bush 77, is clamped axially immovably.

If here on the one hand both the sliding bush 77 and the Clamping device 4 executed axially movable and coordinated, so can In this way, if required, additional pressing is carried out by hand over the cap 9 while on the other hand in the alternative embodiments according to the figures 2, 4 and 6 are particularly simple and can be produced with extremely few individual parts Filling pencil can be created, the functional reliability of which is that of the first Embodiment, especially due to the fewer moving parts still surpasses and probably solves the task in the most advantageous way.

In addition, such a variant can be added in a lighter form to be developed into a fully retractable filler pencil.

The alternative embodiments for forming the approach 21 or the mine brake 22, as shown in Figures 7 and 8, result in particularly simple and inexpensive braking elements for the mine within the mine guide tube 2.

To the friction between the clamping device 4 and the clamping sleeve 7 or the sliding bush 77 as low as possible, it has to be special proved advantageous if the two parts only touch each other at points and at least have hard and smooth surfaces on the contact areas.

Instead of the rolling body 47, a simple one can also be used under this aspect Pressure edge or a pressure point per clamping segment on the clamping sleeve 7 or on the Sliding bush 77 can be provided if by arranging a smooth and self-locking Clamping slope 16 at the front end 41 of the clamping device 4, the easy-going clamping and Unlocking of both parts is ensured. Of course the arrangement is also reversible or interchangeable, so that the clamping device 4 the pressure edges and the clamping bush 7 or the sliding bush 77 the self-locking May have clamping slope.

As a spring element for the arrangement according to the invention is in addition to illustrated helical compression spring (6) or the molded spring bars (63) each any, in particular axially expandable and compressible element with a suitable and permanent elasticity as well as corresponding dimensions can be used, however It should be noted that the spring pressure is also applied when the lead guide tube is almost completely "inscribed" does not become too strong, so as not to premature due to required, increased writing pressure Cause fatigue when writing.

Under '' 'non-self-locking contact zone "is in particular to understand that the contact between the touching parts is not self-locking causes, but that after elimination of the additional writing or trigger pressure both parts can automatically detach from each other.

The at least partially conical support zones can also be complementary Have stops or anti-slip devices for the spring elements if their rearward The end is not formed closed, for example, but from individual lamellae or similar elements.

A particular advantage of the filler pencil according to the invention is complementary also to be seen in the fact that the mine was always held without strong clamping pressure if not written with the pen, so that no mine breakage whatsoever Cold flow occurs when the pen is left unused for an extended period of time.

Position overview 1 filler pencil (total) 64 back end of 63 65 section (of 6) 2 mini guide tube 66 clamping ring (on 6) 21 Extension (at 2) 67 compression spring 22 mine brake (on or in 2 or 21) 7 clamping bush 23 centering means (at 2 or 21) 71 front end of 7 or centering means (at 2 or 21) or 77 24 opening (s) (on 2 or 21) 72 rear end of 7 and 77 3 Housing 73 conical inner bore 73 conical inner bore 31 shaft tip of 7 or 77) 32 back section of 3 (of through hole (from the back section of 3 (of 7 or 77) 33 main part (of 3) 77 sliding bush 34 stop surface (in 31) 78 collar (on 7 or 77) 37 Sleeve 8 mine storage space 81 front end of 8 4 clamping device or 85 41 front end of 4 82 back end of 8 or 85 42 rear end of 4 83 inlet slope (in 8 4 support zones (on 4) or 85) 44 84 stop (at 85) 45 radial slots (in 4) 85 lead tube 46 recesses (in 4) 9 cap 47 rolling elements (inserted in 4) 10 eraser element 48 hole (in 4) 10 eraser element 49 lead inlet (in 4) 11 cleaning needle 5 refill 12 sleeve 51 Follow mine 13 clip 6 spring element 14 locking lug (on 13) 61 front end of 6 15 notch (e.g. in 37) 62 back end of 6 16 clamping slopes 63 spring element (variant of 6)

Claims (19)

Filling pencil with automatic lead advance when writing Claims 9 filler pencil, with automatic lead advance when writing, which has an axially movable lead tube that is at least partially made of the shaft tip emerges, as well as with a clamping device to hold the mine while writing and is equipped with a spring element that extends axially located between the inner guide tube and the clamping device and on the rear The end of the mine guide tube ender at one connected to this or supported approach standing in contact, characterized in that the rear End (62; 64) of the spring element (6; 63) at the front end (41) of the clamping device (4) under axial and radial pressure on this, rests that the clamping device (4) is designed as clamping pliers acting directly on the mine (5) and at least has conical support zones (43; 44) in the pressure area of the spring element (6) and that the contact zone of the clamping device (4) with the clamping sleeve (7) respectively is designed to be self-locking with the sliding bush 77. 2. Filling pencil according to claim 1 d a d u r c h characterized in that the axial length of the spring element (6) and its axial and radial pressure Is dimensioned in such a way that the clamping device (4) is always in the rest position is in the open position, while by the additional writing pressure or by the actuation pressure via the cap (9) the clamping device (4) slight axial and radial movement closes and holds the mine (5) in a non-slip manner. 3. Filling pencil according to one of the preceding claims, d a d u It is indicated that the clamping element (4) at its front end (41) an inwardly tapering, at least partially conical shape Has support zone (44) at which the rear end (62; 64) of the spring element (6; 63) is applied under axial and radially outwardly directed pressure. 4. Filling pencil according to one of the preceding claims, characterized characterized in that the clamping element (4) is inherently directed radially outward has and at its front end (41) with outwardly widening at least partially conical support zones (43) are provided on which the rear end (62) of the spring element (6), under axiairund radially inwardly directed Pressure on the clamping element (4) is supported. 5. Filling pencil according to one of the preceding claims, characterized geknnzei chnet that the clamping device consists of a radial slots (45) multi-part clamping pliers and at least on the outer circumference of its front end (41) has a roller body (47) freely rotatably mounted in recesses (46). 6. Filling pencil according to one of the preceding claims, characterized gekennze chnet that the smallest diameter of the bore (48) of the clamping device (4) is larger than the largest diameter of the mine (5), so that the mine (5) is unimpeded from the mine storage space (8) to the mine brake (22) can fall freely. 7. Filling pencil according to one of the preceding claims, characterized in that that the bore (48) of the clamping device (4) at the rear end (42) of the clamping device (4) has a funnel-shaped widening mine inlet (49). 8. Filling pencil according to one of the preceding claims, characterized characterized in that at least in the axial region of the front end (41) of the clamping device (4) a sliding bush that can move freely axially between two stops in the housing (3) (77) is arranged and that the clamping device (4) within this and within the front end (81) of the mine tube (85) is also mounted so that it can move freely axially is 9. Filling pencil according to one of the preceding claims, characterized characterized in that the cap (9) formed as a push button on the rear End (82) sealed lead tube (85) at its front end (81) with the clamping device (4) can be brought into operative connection and together with this, optionally against the Effect of a compression spring (67) in the housing (3) is axially movable. 10. Filling pencil according to one of the preceding claims, since d u right that at least in the axial area of the front At the end (41) of the clamping device (4) a clamping sleeve (7) axially immovable in the housing (3) is arranged and that the clamping device (4) slides axially in the clamping sleeve (7) and / or is mounted freely movable in the housing (3). 11. Filling pencil according to one of the preceding claims, characterized it is not noted that the clamping bushing (7) or the sliding bushing (77) has a through hole (74), which as the front end (71) widening conical inner bore (73) is formed and at least in the area this conical inner bore (73) has a hard smoothed surface. 12. Filling pencil according to one of the preceding claims, characterized characterized in that the extension (21) centering means (23) for clamping fixing of the front end (61) of the spring element (6). 13. Filling pencil according to one of the preceding claims, d a d u r c h g e k e nnnz e i c h n e t that the approach (21) at least partially as a mine brake (22) is formed, or receives such in itself. 14. Filling pencil according to one of the preceding claims, d a d u r c h characterized in that the approach (21) at the same time as a mine brake (22) in such a way is designed that the clamping ring (66) of the spring element (6) fixed on it causes or intensifies the radial pressure on the mine (5) through its spring action. 15. Filling pencil according to one of the preceding claims, characterized characterized in that the extension (21) has openings (24) which are arranged in this way are that here a portion (65) of the spring element (6) enter and radial Can exert pressure on the mine (5). 16. Filling pencil according to one of the preceding claims, characterized gekenzei chnet that the extension (21) is integral with one or more spring elements (63) is formed, which in turn under axial and radial pressure on the front end (41) of the clamping device (4) on this. 17. Filling pencil according to one of the preceding claims, d a d u r c h e k e n n n z e i c h n e t that the front end of the housing (3) as detachable shaft tip (31) and formed by positive locking elements or threads is connected to the main part (33) of the housing (3). 18. Filling pencil according to one of the preceding claims, as through it is not noted that the main part (33) and / or the rear section (32) of the housing (3) formed directly as a mine storage space (8) and with a cap (9) is closed. 19. Filling pencil according to one of the preceding claims, since d urc h e k e n n n z e i c h ne t that the housing (3) together with the shaft tip (31) and all inner parts designed as an insert and axially in a further sleeve (37) is arranged displaceably and fixable in two end positions such that the Mine guide tube Yn one position from the tip part provided with a bore the sleeve protrudes while in the other position it is completely within the Sleeve (37) is sunk.