DE1203641B - Ballpoint pen with a barrel tip that can be swiveled in all directions against a resilient force - Google Patents

Description

Ballpoint pen swiveling in all directions against a resilient force Shaft tip The invention relates to a ballpoint pen with a removable shaft tip, the against one after the writing pressure has stopped, the writing tip back into the Shaft longitudinal axis adjusting resilient force is pivotable in all directions, and with a Mine tube coaxial to the longitudinal axis of the shaft.

Refill springs are known in ballpoint pens. They serve to a resilient yielding of the writing tip while writing a better writing experience and to give a quicker guidance of the writing instrument. The elastic compliance The tip of the pen is often preferred because it makes the hand slower tired and the writing becomes more even and fluid.

In one case, however, these known cushionings only work in the longitudinal axis of the mine. In turn, other implementations use, for example, a the writing tip leading shaft tip made of rubber or the like. But it has become in use proved to be quite disadvantageous, individual components of the shaft, in particular its tip to be flexible in itself.

Such elastic materials are also found in the prior art for the radial spring-loaded storage of the lead shaft, so among other things in the form of one molded in one piece with the rear closure part of the shaft sleeve Clamp, which serves more as a holding element, which is also due to the known training with a resilient bearing member attached to the shaft tip for the lead tip applies, this bearing member either from a rubber-elastic or one Consists of metal spring. Another well-known writing implement is used in conjunction with a rigid.i tip for the purpose of resilient mounting of the mine if necessary elastic spherical cap, which is mounted in the shaft and in turn the pencil lead leads.

On the one hand, these known embodiments are relative by their complicated structure disadvantageous. On the other hand, there is often direct guidance the writing tip lost because the bore of the shaft is much larger is than the mine diameter. In any case, these known writing implements mediate but not the optimal writing experience, which is especially appreciated by the people it is appreciated who write a lot.

The object of the invention is therefore to provide a ballpoint pen of the above designated type, eliminating the known shortcomings of various embodiments of ballpoint pens in just as simple, d. H. uncomplicated in structure and in the production to create an economical way, such as a maximum of safety in use to achieve.

These advantages are achieved in that in the case of the aforementioned Ballpoint pen according to the invention a known spherical, of which Mine interspersed insert in a front formed by a beaded edge Ball bed of the shaft is pivotable on all sides.

The advantage of this training is primarily that the In itself rigid, but pivotable on all sides tip of the shaft directly is used for the resilient mounting of the writing lead. This results in a particularly good leadership, which, through its direct impact on the mine, is a when the lead tip is swiveled out to the side, a progressively increasing spring force is guaranteed. However, this improves the typing experience considerably without creating a constructive one Disadvantages have to be accepted.

In the practical implementation of this general idea of the invention the part of the shaft that receives the ball bed is either integral therewith formed or releasably connected to the shaft. Which execution form in each case preference is given, depends entirely on the requirements of the individual case, in particular according to the special design of the elastic bearing element.

In a special form of training according to the invention, the Insert with a neck into the tip of the shaft. This way it becomes a very reliable one Articulated connection between the pivotable shaft tip on the one hand and the ball bed formed of the shaft. This also makes additional fastening or joint elements dispensable.

However, the neck can also be designed in one piece with the shaft tip be whose rear edge from the front edge of the shaft in one of its crimping possible Distance ends. On the other hand, however, the neck can be detachable with the shaft tip be connected and this one corresponding to the crimped shaft edge as well have it protruding rear edge of the ring. This results in every case a perfect pivoting movement of the tip around its storage in the shaft.

A preferred embodiment of the invention is characterized by the pivoting range of the insert limiting stop surfaces on the insert itself and on the shaft. For this purpose, both the beaded edge of the shaft as well as a front collar of the insert serve as stop surfaces.

The insert protrudes with a rear neck into the mine guide channel of the shaft into it, as a further feature of the invention provides, the Mine management noticeably improved.

The return of the mine when the writing pressure is stopped in the axial direction In a further development of the invention, the longitudinal axis of the shaft is used by a spring surrounding the mine, which may also serve as a return spring for the mine. This will make the Training of the ballpoint pen is particularly simplified.

It is also possible for the spring to be designed in the shape of a double cone is and the narrow point of the double cone is used to guide the mine.

Features, details and advantages of the invention as set out in the claims express also emerge from the following description of some preferred Embodiments according to the invention and with reference to the drawing. Here shows F i g. 1 shows a longitudinal section through the front part of a ballpoint pen and FIG. 2 shows a corresponding longitudinal section through another embodiment.

The mine a, which is mounted axially displaceably in the shaft b , can be assigned a mechanism known per se, which enables the mine to be moved alternately into the drawn, advanced position of use or into the retracted non-use position, in which the writing ball c is inside the shaft tip d is located. It is advantageous to use a lead with a plastic tube for the writing material.

The refill a sits in the rotatably mounted insert e, the ball bed of which is located in part f of the shaft b . This part f can be in one piece with the shaft b. In some cases, however, it is advantageous to make it from a different material, so the part f z. B. made of metal, while the shaft b consists of plastic. In this case, the parts b and f, as in the illustrated embodiment, z. B. by means of a screw thread g connected to one another.

If the writing pressure ceases, the lead a is axially aligned by the spring i, which can also be the normal return spring of the mechanism. This spring i is supported on the one hand against the collar k of the mine a, on the other hand against the shoulder-like shoulder l of the shaft b .

Like F i g. 2 shows, a double conical spring i is particularly advantageous. This covers the mine a with its narrow point.

The front edge m of the part f initially runs in the axial direction to the front. Only after the insert e has been introduced into the bearing bed is the edge m crimped, as is customary with the bearing bed of the writing ball c.

The collar n of the insert e forms a surface which interacts as a stop surface with the end surface o of the edge m and limits the lateral pivoting range of the mine a and the shaft tip d.

As the drawing shows, the insert e can protrude into the shaft tip d by means of a neck p, which is preferably one-piece with it. In the illustrated embodiment, the neck p and the tip d are screwed together. They can be one-story, in which case the ring edge q of the shaft tip d that overlaps the beaded edge m is omitted.

A neck r can also be connected to the insert e at the rear, which protrudes into the shaft b and the longer, therefore better guidance of the mine a serves and advantageously extends into the longitudinal direction spring i and in the Embodiment according to FIG. 2 is covered by the bottleneck.

Claims (11)

Claims: 1. Ballpoint pen with a removable barrel tip, the against one after the writing pressure has stopped, the writing tip back into the Shaft longitudinal axis adjusting resilient force is pivotable in all directions, and one Coaxial lead tube to the longitudinal axis of the shaft, d a d u r c h g e -k e n n n z e i c h n e t that a known spherical insert penetrated by the mine (a) (e) in a ball bed of the shaft formed at the front by a beaded edge (m) (b) is pivotable on all sides. 2. Ballpoint pen according to claim 1, characterized characterized in that the ball bed receiving part (f) of the shaft (b) with this is designed as a single storey. 3. Ballpoint pen according to claim 1, characterized in that the part (f) receiving the ball bed is detachably connected to the shaft (b) . 4. Ballpoint pen according to one of claims 1 to 3, characterized in that the insert (e ) engages with a neck (p) in the shaft tip (d). 5. Ballpoint pen according to claim 4, characterized in that the neck (p) with the shaft tip (d) is constructed in one piece, the rear edge (q) of which ends from the front shaft part (m) at a distance which allows it to be crimped. 6. Ballpoint pen according to claim 4, characterized in that the neck (p) is releasably connected to the shaft tip (d) and this one the crimped Shaft edge (m) corresponding to and protruding from the rear ring edge (q). 7. Ballpoint pen according to one of claims 1 to 6, characterized in that the pivoting range of the insert (e) is limited by stop surfaces (n, o) of the insert and the shaft (b). B. Ballpoint pen according to Claim 7, characterized in that the beaded edge (m) of the shaft (b) and a front collar (n) of the insert (e) serve as stop surfaces. 9. Ballpoint pen according to one of claims 1 to 8, characterized in that the insert (e) with a rear neck (r) protrudes into the lead guide channel of the shaft (6). 10. Ballpoint pen according to one of claims 1 to 9, characterized in that to return the mine (a) in the axial longitudinal axis of the shaft a surrounding the mine Spring (i) is provided, which may also serve as a return spring. 11. Ballpoint pen according to claim 10, characterized in that the spring (i) is designed in the shape of a double cone and the constriction is used to guide the refill (a). Considered publications: German Patent Nos. 885 070, 902 352, 940 630; German utility model No. 1 624 084; Swiss Patent No. 251416; French patent specification No. 1 148 086.