WO2019224066A1 - Writing implement - Google Patents

Abstract

The invention relates to a writing implement comprising a body (1) and a writing insert accommodated therein, wherein the body (1) has, in the spatial vicinity of the output end of the writing insert, a grip zone (3) with a grip sleeve (10), which is placed onto a main body element (2), is attached to the main element (2) such that it can be removed therefrom and placed thereon without being damaged, and consists of a thermoplastic having a softening temperature between 40°C and 70°C.

Description

 pen

The present invention relates to a pen. In particular, the present invention relates to a pen comprising a body and a writing insert received therein, the body being in

spatial proximity to the dispenser of the writing insert a grip zone with a body on a body

having attached handle sleeve.

Pens, including for the purposes of the present invention, the painting, drawing and the like serving pins count, are known in various designs. They differ in particular with regard to the

respective writing insert. This can, depending on the individual use of the pen, for example, as a pencil, ink, ballpoint, fiber writing or other use be performed. The insert can in particular permanently connected to the body or be completely or partially removable from the body or interchangeable. Also refillable

Writing posts are known. The carcass serves primarily to protect the functional insert (see above) and in the first place to enable its use.

Regardless of the specific design of the pen with respect to the respective writing insert, a secure hold in the hand, ie between the fingers of the writing hand is important for the use of the pen in the individual writing, painting or sign use. Specifically, there is a more or less significant requirement for the particular application situation in that the The pen must be kept as fatigue-free as possible over a longer period of time, even under unfavorable conditions, for example under

Sweat formation.

To improve the feel, various approaches have been proposed or in use. Thus, "soft grip" gripping sleeves having pins are known in which the gripping sleeves made of a rubber, silicone or rubber-like material or an elastomer with increased grip. The increased grip is the result of a relatively high elastic compliance (softness) of the grip sleeve material at the same time comparatively high friction between

Finger skin and grip sleeve, for example due to a roughened surface of the grip sleeve.

According to another approach (see for example WO

00/32715 A1), the grip zone is made of a gel material that is malleable at ambient temperature but solidifies at body temperature. Thus, it is to be achieved that the pin, if this is intended in the hand, in the

Handle zone individual, adapted to the anatomy of the user finger hollows form, which harden as a result of the subsequent heating of the grip zone by the hand holding the pin. When the pen is lowered and the grip zone cools down to room temperature, the grip recesses are formed so that the grip zone returns to its original (neutral) form

WO 2012/050691 A1 suggests - in a comparable intention - one of a viscoelastic material existing grip zone. The vibrations of comparatively high frequency exerted on the grip zone during writing movements cause the solidification of the vibration

Griffzonenmaterials, but not already in the pure holding the pen by the fingers on the

Gripping zone exerted vibrations of rather less

Frequency. Thus, when picking up the pen, the fingers of the writing hand in the grip zone can form individual recessed grips, which during subsequent

Cure writing movements. When the pen is removed, the grip recesses form so that the grip zone returns to its original (neutral) form.

The present invention has set itself the task of a further improved in view of the problem set pen of the aforementioned

to provide the generic type.

We solves this problem according to the present invention by, as stated in claim 1, the

Grip sleeve on the body damage-free of this removable and mounted on this is mounted and a thermoplastic, whose

 Softening temperature between 40 ° C and 70 ° C is. It is therefore crucial for the pen according to the invention that - in a fundamental departure from the concepts according to WO 00/32715 Al and WO 2012/050691 Al - the grip sleeve reliably retains its shape during use of the pen as well as during service interruptions by the grip sleeve consists of a deformable neither at ambient temperature, nor body temperature material.

Rather, in order to adapt the pen to the user, the grip sleeve of the body of the body 'removed and - For example, in a water bath - heated to a temperature substantially above normal body temperature temperature at which uses a softening of the grip sleeve material and the grip sleeve is deformable.

The user then models the still warm, plastically deformable grip sleeve, typically after he has previously put this back on the body of the body 'of the pen, by his fingers by using his finger in the pen held by his finger as intended in his pen by fingerprint depressions still warm grip sleeve einformt. These hollows remain permanently, d. H. until a repetition of the procedure, in the grip sleeve, just because a softening of the

Gripping sleeve material only starts at a temperature substantially above body temperature, a proper use or handling of the pen (and certainly not a break in use with appropriate cooling of the grip zone) thus does not lead to softening or deformability of the grip sleeve. Thus, in the case of the pen according to the invention (with a comparatively low manufacturing outlay) a permanent, taking place by the user himself

Individualization of the grip zone of the pen is possible, as it is permanently adapted to the individual anatomy of the user. Thus, with pins according to the invention, in particular the grip zone immediately and immediately after grasping the (once individualized) pin securely and firmly hold with minimal pressure forces of the fingers to the pin, allowing for fatigue-free writing, drawing, painting or the like

is crucial. For the grip sleeve come in the context of the present invention basically different, the

materials meeting the requirements of the invention. Particularly suitable, due to further favorable properties, polycaprolactone.

According to a first preferred embodiment of

Invention, the grip sleeve forms an outer sleeve, which is firmly connected to one of them enclosed, up to at least 60 ° C dimensionally stable support sleeve. Here is the actual grip sleeve against which the crests of the user's finger holding the pin, thus part of a sleeve unit, which in addition to the grip sleeve further arranged within the grip sleeve

Carrier sleeve comprises. This favors the implementation of the above-described procedure of individualization of the pen. Because the softened by heating grip sleeve is supported from the inside by the support sleeve; this prevents such deformation of the heated

Handle sleeve in their handling that already the

Attaching the heated grip sleeve would be difficult to the body of the body. The stiffening of the

Grip sleeve on its inside by the said

Carrier sleeve rather - with a suitable design of the pen by the way - the possibility of rapid attachment of the warm grip sleeve by simple

Slip on a core for sure. The

Softening temperature of the carrier sleeve material is regularly substantial, z. B. at least 15 ° C, above the handle sleeve material, so that the above-outlined customization procedure can be performed reliably by laymen. Under certain circumstances, a carrier sleeve material that only at temperatures above softened by 100 ° C, be beneficial; because so in the case of heating the sleeve unit in the water bath safely ruled that (also) the support sleeve is deformable.

In the above sense, d. H. for a light and

easy mounting of the grip sleeve (resp.

optionally the sleeve unit) on the body of the body, has - according to another preferred embodiment of the invention - the body of the body on a protruding into the grip sleeve core on which the grip sleeve or the sleeve unit can be plugged. This core is particularly preferred by the

Grip sleeve through, so that it forms a protruding over the grip sleeve supernatant. At this over the grip sleeve protruding supernatant of the core can in particular a the grip sleeve fixing, d. H. be mounted its position securing end element. For the attachment of the end element to the supernatant of the core is in particular a threaded connection is suitable. But for example, a snap connection is possible. To avoid misconceptions, however, it should be expressly pointed out that it is by no means compulsory to carry out the body of the body with a core projecting into the grip sleeve. For example, it is conceivable in a corresponding manner that a carrier sleeve (see above) firmly held in the grip sleeve has a projection which extends into a carrier sleeve

corresponding receptacle of the body body is inserted.

Indicates - in the sense set out above - the

Carcass base body protruding into the grip sleeve Core on, so acts particularly preferred between the core and the grip sleeve against rotation. This ensures that the grip sleeve can be placed only in a certain position on the core of the body of the body. For this purpose, the core as such a non-round, z. B. have a polygonal cross-section; or the anti-rotation comprises, for example, a tongue and groove arrangement or functionally comparable equipment with a co-operating with a depression projection. Is, as explained above, the grip sleeve part of a sleeve unit, which further comprises a support sleeve, so the rotation typically acts indirectly on the actual grip sleeve, namely, namely

directly between the body of the body and the

Carrier sleeve acts.

In the following, the present invention will be described with reference to a preferred embodiment illustrated in the drawing

Embodiment explained in more detail. It shows

Fig. 1 shows a pin according to the invention in side view, Fig. 2 shows a longitudinal section through the pin of Fig. 1 and

 Fig. 3 disassembles the pin according to Figures 1 and 2.

Since the present invention - regardless of the

specific embodiment of the writing insert - is applicable to any type of pen (for writing, drawing, painting or the like), it to the specific

Execution of the writing insert thus does not arrive, is omitted in the drawing on a representation of a specific writing insert. This could for example - in principle as such known manner - be performed by a pencil-lead insert with a guide tube accommodated in a receiving cavity of the carcass and a pressure or screw mechanism for advancing the lead within the guide tube in the direction of the discharge end.

The pen shown in the drawing comprises one for receiving a writing insert (see above).

suitable body 1. This has as main components a base body 2 and a gripping zone 3 forming sleeve unit 4. The main body 2 is traversed by a - shown schematically here - receiving cavity 5 for the writing insert. A provided at the rear end 6 of the base body 2 - also shown schematically - control element 7 allows the operation of the writing insert, for example in the sense of advancing a pencil lead.

The sleeve unit 4 comprises a (inner)

While the support sleeve 8 consists of a up to 80 ° C dimensionally stable plastic, the grip sleeve 10 is made of a thermoplastic whose

Softening temperature between 40 ° C and 70 ° C, for example, polycaprolactone (with a

Melting temperature of around 60 ° C).

The main body 2 comprises an upper part 11 and a core 12 protruding therefrom. This tapers in the direction away from the upper part 11, d. H. in the direction of the person carrying out the recording task. The sleeve unit 4 is on the core 12 from the front

plugged, and indeed so far, until they on the upper part 11th of the main body 2 strikes. In this position of the sleeve unit 4, the core 12 passes completely therethrough. A projection 13 of the core 12 protrudes out of the front of the sleeve unit 4. This supernatant 13 has an external thread 14, so that a - a

corresponding female thread 15 exhibiting - closing element 16 can be screwed, which

frontally abuts the sleeve unit 4 and thus secures them in their plugged onto the core 12 of the base body 2 position. When removed end member 16 thus the sleeve unit 4 is damage-free of the

Body 2 removable and placed on this.

Between the core 12 and the attached to him

Sleeve unit 4 acts an anti-rotation. This includes a core 12 incorporated in, in

Notch 17 which extends in the longitudinal direction of the pin and into which a corresponding rib 18, which runs on the inside of the carrier sleeve 8, engages. To illustrate the rib 18, the sleeve unit 4 is shown rotated by 90 ° in Fig. 3.

Claims

claims 1. pen, comprising a body (1) and a writing insert received therein, wherein the body (1) in spatial proximity to the discharge end of the writing insert a grip zone (3) with a on a carcass base (2) attached  Having grip sleeve (10), characterized in that the grip sleeve (10) on the base body (2) without damage of this removable and mounted on this and is made of a thermoplastic whose softening temperature is between 40 ° C and 70 ° C. 2. pen according to claim 1, characterized  characterized in that the grip sleeve (10) forms an outer sleeve (9) which firmly with one enclosed by it, until at least 60 ° C.  dimensionally stable carrier sleeve (8) is connected. 3. pen according to claim 2, characterized  characterized in that the softening temperature of the carrier sleeve material is substantially higher than that of the handle sleeve material. 4. pen according to one of claims 1 to 3, characterized in that the base body (2) has a in the grip sleeve (10) projecting core (12). 5. pen according to claim 4, characterized in that the core (12) through the  Handle sleeve (10) passes. 6. pen according to claim 5, characterized  in that a protrusion (13) of the core (12) projecting beyond the grip sleeve (10) has a grip sleeve (10) which fixes it  End element (16) is mounted. A pen according to any one of claims 4 to 6,  characterized in that between the core (12) and the grip sleeve (10) acts against rotation. A pen according to any one of claims 1 to 7,  characterized in that the grip sleeve (10) consists of polycaprolactone.