DE20319632U1 - Sleeve for lead or chalk, has trilobular or triangular cross section with rounded edges - Google Patents

Abstract

The sleeve (10) has an essentially trilobular cross-section or an essentially triangular cross-section with rounded edges (12).

Description

technical area

The invention relates to a sleeve for at least a painting, writing and / or Drawing media, especially for at least one lead, chalk or wax paint.

State of the art

wrap or sleeves for mines, Chalk or wax colors especially the function, a lead, a chalk or a wax paint to be able to lock it firmly so a user doesn't directly mine, chalk, or wax paint must touch and thus avoid soiling the hands. Often is it is desirable the lead, chalk, or wax paint that wears out during use so inside the shell or sleeve to be able to lock that always a sufficient piece the lead, chalk or wax paint protrudes from the casing or sleeve.

This is from the publication DE 43 03 468 C1 a housing sleeve for a mine is known, this housing sleeve is formed with longitudinal slots that start from the two ends of the housing sleeve. These longitudinal slots are diametrically opposite, extend to a central section of the housing sleeve and are formed in the same central plane.

This is known from the prior art housing sleeve continue at its front end with a clear cross section reducing the interior of the housing sleeve Holding section formed, the axial dimension in comparison to the axial dimensions of the associated first longitudinal slots is small.

The housing sleeve created in this way according to the document DE 43 03 468 C1 should in particular be made in one piece and simple and also have a reliable holder for the mine, this mine should be displaceable when the housing sleeve is actuated accordingly.

A disadvantage of the housing sleeve described above however, that these have low strength due to their slots or has flexural rigidity. To ensure break resistance of the housing sleeve to be able this housing sleeve must be made be relatively strong material, resulting in a cost disadvantage in the Manufacturing leads. It is also disadvantageous that the slots are easy to grip or prevent permanent holding of the housing sleeve.

In the publication WO 91/11334 A1 a pen or crayon with a barrel made of an envelope is disclosed, wherein the sheath forming the sheath is arranged in multiple layers or rolled sheet or foil-shaped Paper, wood and / or plastic layers as composite layers made of different Materials exist and the individual layers by means of curing Adhesive insoluble are.

With such a configuration the housing sleeve should achieves high strength and / or high bending stiffness become. The disadvantage, however, is that to achieve strength or the bending stiffness is a complex manufacturing process using multiple layers as well as glue required is, which in turn leads to a cost disadvantage.

Another disadvantage of out of Document WO 91/11334 A1 known envelope can be seen in that the cylindrical Training ergonomically unfavorable is. A permanent holding of the covering is accompanied by an increased load, especially for the hand as well as for the user's forearm.

From the publication DE 43 02 578 A1 as well as from the publication DE 101 37 020 A1 finally circular or cylindrical handle covers for mines, chalks or wax colors are known.

Presentation of the invention: task, Solution, advantages Based on the disadvantages and shortcomings outlined above as well as with appreciation of the state of the art outlined lies in the present invention based on the task of a sleeve for at least a means of painting, writing and / or drawing, especially for at least a refill, chalk or wax paint, to indicate the minimum Cost and material costs a high strength and a high Has flexural rigidity. Furthermore, the sleeve according to the invention should be special adapt well to the human hand and therefore also over a long period of time be comfortable to hold on to.

This task is done with a sleeve solved the features specified in claim 1. Advantageous configurations and appropriate further training of the present invention are characterized in the subclaims.

A particular advantage of the sleeve according to the present Invention is that this sleeve with minimal material and manufacturing effort a very high strength as well as a very has high bending stiffness. As a result, the sleeve has in particular a high break resistance and can therefore be thin-walled.

For this purpose, the sleeve has the teaching of the present invention on their from painting, writing and / or Outside of the drawing means facing away an essentially polygonal, for example hexagonal, or multilobular cross section, especially with rounded edges.

The polygonal or polygonal or multilobular design of the sleeve, sleeve or tube, in particular the hexagonal design with rounded edges, for example, combines the high strength and good grip in an inventive manner as well as the special slip resistance of a square cross section with the convenient handling of an approximately circular cross section.

In this context, particular attention is paid to that, for example, a hexagonal outer profile that for students of Pencils her usual hexagon profile corresponds. Regardless of this habituation offers an angular profile, especially a polygonal or multilobular cross section, due to the existing areas

• - With vanishing curvature (<--> polygonal or polygonal Cross section) or
• - With low curvature (<--> multilobular cross-section) good pressure areas and lets keep themselves from the user better than a round profile.

A sharp edge of the shell, sleeve or Tube too avoid and for a comfortable grip and a permanent hold to ensure, are the edges according to one advantageous embodiment of the present invention rounded.

Preferably, the shell, sleeve or Tube like that designed that the cross section of the painting, writing and / or drawing means with the cross section of the painting, writing and / or drawing material facing inside of the sleeve interacts in such a way that the painting, writing and / or drawing means can be accommodated in the sleeve and / or within the sleeve is movable.

The means of painting, writing and / or drawing can a painting lead, a writing lead, a drawing lead or a cosmetic pencil lead his.

According to an essential to the invention The design is the sleeve Outside polygonal and round inside. That means the sleeve is more preferred wise

• - on their outside an essentially polygonal, for example hexagonal, or multi-angular or multilobular cross-section, in particular with rounded edges, and
• - on an essentially round, in particular circular, inside, Has cross-section.

The round inner cross section serves for holding round painting, writing and / or drawing materials, in particular of round leads, chalks or wax colors. The combination of the trained according to the invention Outer surface with one way for holding mines, chalks or wax colors that are relatively easy to manufacture is extremely beneficial because a painting, writing and / or drawing instrument is extremely inexpensive, especially a paint, writing and / or drawing pen, for example a crayon, can be made, the one in his outer profile that for student hexagon profile familiar from pencils.

The polygonal or multilobular sleeve becomes through the edges or through the areas of maximum curvature in several areas divided. In order to ensure a non-slip gripping or holding of the sleeve, point the areas in a preferred embodiment at their front, the tip of the painting, writing and / or drawing means facing End sections with a profile, for example with a Altitude profile, on, this profile preferably a polygonal or multi-angular, in particular hexagonal, cross-section. This profile increases the grip of the Sleeve and is at the front end, i.e. in the contact area with the fingers arranged.

Because of the polygonal or multi-angular or multilobular cross-section increased strength or bending stiffness, the present sleeve can be made of relatively soft materials, such as plastic, especially plastic, or Made of cardboard his; in this context, there are in particular very thin-walled embodiments possible.

It is also particularly advantageous good adaptation (ability) the sleeve according to the present Invention to the human hand. Unlike with cylindrical sleeves a polygonal or multilobular Design several support surfaces and can therefore be held particularly well in the hand; This is especially for Children important.

Preferably, the sleeve, in particular the handle cover or cover, at least one is essentially parallel to the main or symmetry axis of the Sleeve extending Breakthrough with several recesses.

Furthermore, the sleeve can an advantageous embodiment of the present invention at least one locking means for reversible locking of the painting, Have writing and / or drawing means. This locking means points expediently at least one resilient element, each with a recess the breakthrough interacts.

Hereby the painting, writing and / or drawing means, in particular the lead, chalk or wax paint, inside the sleeve according to the present Invention can be securely locked because the resilient element is in its starting position, that is without user intervention, in one of the preferred regularly arranged recesses firmly locked; thus it is the means of painting, writing and / or drawing also firmly locked.

If the user now actuates the resilient element, for example by pressing down at least one resilient tab, the resilient element is moved out of the recess which locks the painting, writing and / or drawing means, so that the painting, writing and / or drawing means can be moved within the sleeve. Now the user can choose the appropriate Po Adjust the position of the painting, writing and / or drawing means within the sleeve and then, by releasing the resilient element, lock the painting, writing and / or drawing means.

The locking means is therefore at one appropriate execution of Invention relative to the surfaces the sleeve arranged movably. Independently of this or in connection with this, the latching means has a Essentially round, in particular circular, cross-section.

Further preferred configurations the present invention results from the features listed in the dependent claims.

The present invention relates to further a painting, writing and / or drawing instrument, in particular a crayon, comprising at least one sleeve, sleeve or Tube of The manner set out above, in which at least one in particular circular Painting, writing and / or drawing tools, especially at least one Mine, chalk or wax paint, for painting, writing and / or recorded and guided for drawing.

The shell, sleeve or Tube for Record and guide at least one, in particular circular, painting, writing and / or Drawing means, in particular at least one lead, chalk or wax paint, used for painting, writing and / or drawing.

Brief description of the drawings

As already discussed above, there are various possibilities for advantageously designing and developing the teaching of the present invention. For this purpose, on the one hand, reference is made to the claims subordinate to claim 1, and on the other hand, further configurations, features and advantages of the present invention are described below on the basis of 1A to 4 illustrated embodiments explained in more detail.

It shows:

1A in cross-sectional view a first embodiment of a sleeve according to the present invention;

1B in cross-sectional view a second embodiment of a sleeve according to the present invention;

2 in perspective a painting, writing and / or drawing means that the sleeve 1A or the sleeve 1B is assigned, as well as a locking means, which is also made of the sleeve 1A or the sleeve 1B assigned;

3 a perspective view of an embodiment of a painting-writing and / or drawing instrument according to the present invention with the painting, writing and / or drawing means 2 as well as with the locking means 2 ; and

4 in perspective the painting, writing and / or drawing instrument 3 when used in a human hand.

The same or similar configurations, elements or features are in the 1A to 4 provided with identical reference numerals.

Best way to execution the invention

In the 1A and 1B are two embodiments of a sleeve according to the invention 100 shown, which can also be referred to as a (handle) sleeve or (handle) tube.

1A shows a sleeve 100 , the

• - on its outside 100a a hexagonal cross-section with rounded corners or edges 12 and
• - on the inside 100i has a circular cross section. This hexagonal sleeve 100 is through the edges 12 in several areas 14 divided, these areas 14 have no curvature, so that a hexagon is formed.

The round inner cross-section serves to hold a painting, writing or drawing medium that is round in cross-section 300 (see. 2 ), namely a mine, chalk or a crayon with a round cross section.

The combination of the special outer surface 100a with the possibility of holding mines that are relatively easy to manufacture 300 is extremely advantageous because a pen is extremely inexpensive 200 (see. 3 and 4 ), for example a crayon, which has the same external profile as the hexagonal profile used for pencil students.

Regardless of this habituation, hold an angular profile better than a round profile so that the solution according to the present invention offers good ergonomics.

1B shows a sleeve 100 , the

• - on its outside 100a a hexalobular cross section and
• - on the inside 100i has a circular cross section.

The outer cross section has six points 12 maximum curvature. These six curvature maxima 12 divide the sleeve 100 in six areas 14 , each with a minimal curvature in their center, so that the surfaces 14 have a substantially lobular or lobular shape.

The sleeve 100 According to the present invention, in its hexalobular configuration, there can be different curvature ratios, namely from minimal curvature in the middle of the main surfaces 14 up to maximum curvature at the corner points or marginal edges 12 ,

The greater the curvature ratio, the higher the strength or bending stiffness the sleeve 100 , This results in a tension ratio between the greatest possible curvature ratio to achieve high strength (which in extreme cases would lead to a sharp-edged shape) and a low curvature ratio to ensure comfortable holding.

Depending on the area of application, according to the teaching of the present invention, a respective optimal solution can be found which, on the one hand, has a high strength and bending stiffness and, on the other hand, a comfortable holding of the sleeve 100 guaranteed.

In 2 is the painting, writing or drawing medium that is circular in cross section 300 shown.

Furthermore, in 2 a locking device 26 shown that

• - on his from the means of painting, writing or drawing 300 opposite side a resilient element 30 and
• - on his the means of painting, writing or drawing 300 facing a circular cavity 32 , whose internal dimensions are slightly smaller than the external dimensions of the painting, writing or drawing material 300 are.

This locking device 26 serves the reversible locking of the painting, writing or drawing medium 300 and is the pod 100 assigned. The functionality of the locking means 26 is discussed below in connection with 3 explained.

Because the interior dimensions of the cavity 32 of the locking means 26 slightly smaller than the outside dimensions of the painting, writing or drawing material 300 are to the top 310 the means of painting, writing or drawing 300 opposite end 320 (see. 2 ) of the means of painting, writing or drawing 300 with slight pressure in the cavity 32 inserted and in this cavity 32 be locked.

It is essential to the invention Way exploited the fact

• - that for example the lead of a lipstick or a wax lead elastic is deformable and / or
• - that the means of painting, writing or drawing 300 at its from the top 310 opposite end 320
• - one slightly tapered Shape or
• - has a slightly stepped shape (cf. 2 ).

3 shows a painting, writing or drawing instrument 200 , namely a crayon, which is a sleeve 100 according to the present invention, in which the circular cross-section means 300 for painting, writing or drawing (cf. 2 ) is recorded and managed.

How out 3 can be seen, the sleeve 100

• - a front, the tip of the painting, writing or drawing medium 300 facing end 16 such as
• - a rear, from the means of painting, writing or drawing 300 averted end 18 on.

That inside the sleeve 100 arranged painting, writing or drawing materials 300 protrudes at least over the front end 16 the sleeve 10 out, so with this outstanding piece of the remedy 300 can be painted, written, drawn or otherwise worked.

The cross-section of the means of painting, writing or drawing 300 works with the cross section of the painting, writing or drawing medium 300 facing inside 100i the sleeve 100 so together that the means of painting, writing or drawing 300 in the sleeve 100 recordable and inside the sleeve 100 is movable.

For a non-slip gripping and holding of the sleeve 100 ensuring is at the top 310 the means of painting, writing or drawing 300 each end section facing 16 of the six outer faces 14 an elevation profile 24 to hold and support the sleeve 100 gripping fingers (cf. 4 ) arranged.

This profile 24 that extends around the entire circumference of the shell or sleeve or tube 100 can extend, points according to the cross section of the sleeve 100 a hexagonal or hexalobular (= sixlobular) cross-section with rounded edges 12 on.

The sleeve 100 is made of plastic, especially plastic, or cardboard and has a high level of break resistance; the means of painting, writing or drawing 300 is a painting lead, a writing lead, a drawing lead or a cosmetic pencil lead.

As shown 3 can be removed, the sleeve has 100 on one of their areas 14 continue over a parallel to the main or symmetry axis of the sleeve 100 extending breakthrough 20 , This breakthrough 20 has several recesses 22 on,

• - The on both sides and laterally at regular intervals to extend the opening 20 are arranged and
• - The essentially over the entire length of the opening 20 run.

The breakthrough 20 extends almost the entire length of the sleeve 100 , namely from the top 310 of the means of painting, writing or drawing 300 opposite end 18 the sleeve 100 to the beginning of the profile section 24 , and is the area in relation to the two 14 bounding edges 12 in the middle between these two edges 12 arranged.

In these recesses 22 is the locking means in an essential embodiment of the invention 26 snaps into place so that the user by pressing this latching means 26 the means of painting, writing or drawing 300 can spend in a certain position, the means of painting, writing or drawing 300 can lock in this position and then with the painting, writing or drawing instrument 200 can work.

Here, the locking means 26 for locking the painting, writing or drawing material 300 via a resilient element 30 , as in 2 and

3 is shown. In 3 is the one in the sleeve 100 located area of the locking means 26 shown in dashed lines, because this area is in the perspective view 3 not visible.

The spring element 30 works with one recess each 22 the breakthrough 20 together. So the user can press the spring element 30 a disengagement of the resilient element 30 out of the recess 22 cause. This allows it to move within the sleeve 100 arranged locking means 26 together with the means of painting, writing or drawing 300 move or move to a desired position.

By releasing the spring element 30 this now snaps into one of the recesses 22 and thus locks the locking means 26 and thus also the means of painting, writing or drawing 300 ,

The result is the locking means 26 so relative to the areas 14 the sleeve 100 movably arranged, and the cross section of the inside 100i the sleeve 100 acts with the cross section of the locking means 26 together.

A purpose for the sleeve 100 according to the present invention results as in 4 shown when using a painting, writing or drawing instrument 200 that the sleeve according to the invention 100 (see. 1A . 1B or 3 ) in which the circular mean 300 for painting, writing or drawing is recorded and managed.

Out 4 it can be seen that when holding the painting, writing or drawing instrument 200 the fingertips on the profile 24 fit tightly, so that there is an ergonomically particularly advantageous hold of the painting, writing or drawing instrument 200 in the human hand.

The invention is limited not on the embodiments shown here. Rather it is possible, by combining and modifying the means and features mentioned further versions to realize without leaving the scope of the present invention.

100

Shell, in particular Handle cover, or sleeve or tube

100a

Outer surface or outside of the sleeve 100

100i

Inner surface or inside of the sleeve 100

12

Edge, in particular corner, (cf. 1A ) respectively.

Point of maximum curvature (cf. 1B )

14

Area, in particular main area

16

front (= the top 310 of painting, writing and / or

sign means 300 facing) end of the sleeve 100

18

rear (= the end 320 of painting, writing and / or

sign means 300 facing) end of the sleeve 100

20

Breakthrough of the sleeve 100

22

Recess in the opening 20

24

Profile, especially height profile

26

Detent means, especially locking means

30

resilient element of the locking means 26

32

Cavity of the locking means 26

200

Times-, Writing and / or drawing instrument, in particular

wax crayon

300

Times-, Writing and / or drawing materials, in particular refills, chalk

or Wax paint, for painting, writing and / or drawing

310

Tip of the painting, writing and / or drawing medium 300

320

to the top 310 the means of painting, writing and / or drawing 300

opposite lying end of the painting, writing and / or

sign means 300

Claims (17)

Sleeve ( 100 ) for at least one painting, writing and / or drawing material ( 300 ), in particular for at least one lead, chalk or wax paint, characterized in that the sleeve ( 100 ) on their painting, writing and / or drawing materials ( 300 ) facing away from the outside ( 100a ) an essentially polygonal, for example hexagonal, or multilobular cross section, in particular with rounded edges ( 12 ), having. Sleeve according to claim 1, characterized in that the cross section of the painting, writing and / or drawing means ( 300 ) with the cross-section of the means of painting, writing and / or drawing ( 300 ) facing inside ( 100i ) the sleeve ( 100 ) interacts in such a way that - the means of painting, writing and / or drawing ( 300 ) in the sleeve ( 100 ) is recordable and / or - that the painting, writing and / or drawing means ( 300 ) inside the sleeve ( 100 ) is movable. Sleeve according to claim 1 or 2, characterized in that - the sleeve ( 100 ) on the inside ( 100i ) has an essentially round, in particular circular, cross-section and / or - that the painting, writing and / or drawing means ( 300 ) has an essentially round, in particular circular, cross section. Sleeve according to at least one of claims 1 to 3, characterized in that the in particular six outer surfaces ( 14 ) the sleeve ( 100 ) at their top ( 310 ) the means of painting, writing and / or drawing ( 300 ) facing ends ( 16 ) at least in sections at least one profile ( 24 ), in particular for holding and / or supporting the sleeve ( 100 ) gripping fingers. Sleeve according to claim 4, characterized in that the profile ( 24 ) an essentially polygonal, for example hexagonal, or multilobular cross section, in particular with rounded edges ( 12 ), having. Sleeve according to at least one of claims 1 to 5, characterized in that the sleeve ( 100 ) made of wood, cardboard, plastic, in particular plastic, preferably made of strong paper or cardboard. Sleeve according to at least one of claims 1 to 6, characterized in that the painting, writing and / or drawing means ( 300 ) is a painting lead, a writing lead, a drawing lead or a cosmetic pencil lead. Sleeve according to at least one of claims 1 to 6, characterized in that at least one surface ( 14 ) the sleeve ( 100 ) at least one essentially parallel to the main or symmetry axis of the sleeve ( 100 ) extending opening ( 20 ) with several recesses ( 22 ) having. Sleeve according to claim 8, characterized in that the opening ( 20 ) - in the middle of the surface ( 14 ) is arranged and / or - almost over the entire length of the sleeve ( 100 ), especially from the top ( 310 ) the means of painting, writing and / or drawing ( 300 ) opposite end ( 18 ) to the profile ( 24 ), extends. Sleeve according to claim 8 or 9, characterized in that the recesses ( 22 ) - essentially along the entire length of the opening ( 20 ) are arranged and / or - are arranged at substantially regular intervals from one another and / or - laterally to extend the opening ( 20 ) are arranged and / or - on both sides to extend the opening ( 20 ) are arranged. Sleeve according to at least one of claims 8 to 10, characterized in that exactly one surface ( 14 ) the sleeve ( 100 ) an opening ( 20 ) having. Sleeve according to at least one of claims 1 to 11, characterized in that the sleeve ( 100 ) at least one locking device ( 26 ) for reversible locking of the painting, writing and / or drawing material ( 300 ) having. Sleeve according to claim 12, characterized in that the latching means ( 26 ) at least one resilient element ( 30 ), each with a recess ( 22 ) the breakthrough ( 20 ) can work together. Sleeve according to claim 12 or 13, characterized in that the latching means ( 26 ) - relative to the areas ( 14 ) the sleeve ( 100 ) is movably arranged and / or - has an essentially round, in particular circular, cross section. Sleeve according to at least one of claims 12 to 14, characterized in that the cross section of the inside ( 100i ) the sleeve ( 100 ) with the cross section of the locking means ( 26 ) corresponds and / or - that the locking means ( 26 ) at least one cavity ( 32 ), whose internal dimensions are slightly smaller than the external dimensions of the painting, writing and / or drawing material ( 300 ) are. Painting, writing and / or drawing instrument ( 200 ), in particular crayon, having at least one sleeve ( 100 ) according to at least one of claims 1 to 15, in which at least one, particularly circular in cross-section, painting, writing and / or drawing means ( 300 ), in particular at least one lead, chalk or wax paint, is recorded and guided. Using a sleeve ( 100 ) according to at least one of claims 1 to 15 for receiving and guiding at least one, especially circular in cross-section, painting, writing and / or drawing means ( 300 ), in particular at least one lead, chalk or wax paint.