DE29623569U1 - Container sharpener - Google Patents

Description

Patent Attorneys Tergau & Pohl, Nuremberg ,".""S .'*..··. ."·.". Page

&zgr; Description

3 container sharpeners

5 The invention relates to a container sharpener with the features of the generic term

6 of claim 1. For reasons of cost or simplicity, the containers of such sharpeners usually have the shape of a closed at its base end.

a hollow cylinder, the head end of which is also closed and carries the sharpener.

9 The container casing surrounds the sharpener on all sides with a considerable distance.

10 The bottom of the container usually serves as a support surface. Since the bottom of the container

11 a large distance from the sharpener body fixed to the container head, a

12 relatively unlimited space for the shavings,

13 which come out of the knife slot of the sharpener without contact with the container casing

&eegr; leak out. Such container sharpeners are relatively bulky. In non-

15 In their used state they are usually placed on a table, in a shelf or

The drawer is placed where you can stand on the bottom of the container

&eegr; are deposited. In the case of container sharpeners with such voluminous containers

is the utilization of the available container space does not pose any problems

19 problems.

21 However, container sharpeners with a volume that is too small compared to the volume of the

22 Spitzer's comparatively small capacity of the container for the

23 the shavings. Such a container sharpener especially for cosmetic pencils

24 te is known from DE 31 45 536 C2. The container is here essentially

25 hollow cylindrical chip cap, which protects the sharpener body with relative

26 nically small radial and axial clearance. Because of the doughy-lubricating

27 consistency of a relative to the diameter of the pin shell a

28 large cross-sectional diameter pencil lead, the problem arises here

29 that the radial gap between the sharpener and the chip cap

30 pe. To overcome this problem, the well-known cosmetic

31 Container sharpener special measures for the removal of the due to the high

32 mine chip portion of problematic peeling waste is intended.

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Patent attorneys Tergau & Pohl, Nuremberg .··. ··*! .**..·'. ."..Page 2

2 The invention is based on the object of providing a container sharpener

3 of the type mentioned above, which, with small dimensions of the

4 container in the radial direction to the container axis provides a sufficient storage volume for the shavings without causing problems in the exploitation

6 Use of the available container space for chip collection

7. This object is achieved by claim 1. &bgr;

9 An essential feature of the subject matter of the invention is the container filling system,

10 namely the chip guide from its exit from the knife slot into the container

11 interior space, which is located in the axial direction away from the tip of the

12 closes. Axial direction is the direction essentially of the longitudinal axis of the

13 container neck. Due to the small cross-sectional dimension of the container

14 neck in relation to the cross-section of the sharpener body, the shavings come into contact with the guides at a relatively short distance after exiting the knife slot.

16 Cone and paring knife approximately in circumferential direction at an acute angle

17 onto the casing of the container neck. Due to the conical inclination of the paring knife, the paring chip is pushed away from the sharpener in the direction of the

19 holder neck axis on the locking end of the holder facing away from the sharpener

20 container and, if necessary, depending on the properties of the jacket material

21 material of the mine is broken or diverted towards the center of the container. The

22 ensures a smooth peeling process.

24 The deflection of the chippings back towards the center of the container holder

25 ses and at the same time on the locking end of the

26 container facilitates the removal of peeling waste from the area of

27 paring knife. This causes a build-up and blockage in this area

28, for the elimination of which the container sharpener according to DE 31 45 536 C2

29 provides for special measures (cleaning swabs).

31 A particular advantage of the subject matter of the invention is that the container

32 ter comparatively small dimensions in the container or the container neck

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Patent Attorneys Tergau & Pohl, Nuremberg .··.·"! «*·..". ."..Page

1 axis in radial direction, without causing problems with regard to the container

2 filling in a predominantly axial direction, away from the sharpener.

3 The advantageous chip guidance and, if necessary, chip breaking is achieved in

4 essentially by reducing the radial projection of at least the container

5 neck. The shape of the container in the direction of the longitudinal axis

6 The container connected to the lower neck is basically arbitrary. It can be of

7 larger diameter than the container neck, e.g. shaped like a bottle belly &bgr;. A tube-like cross-sectional shape is also conceivable.

9 However, it is particularly advantageous to have a seamless transition of an essentially hollow cylindrical

10 see shape of the container neck in the adjoining container same

11 cross-section. If we speak of hollow cylinders or circular cross-sections,

12 cut form, these statements are not necessarily word for word

13. Cross-sectional shapes approximating these shapes can also be

14 forms for the container neck or for the container, provided that they

15 ensure a certain similarity in effect. An elliptical cross-sectional shape or that of a closed polygon is therefore also conceivable.

ie The diameter reduction, which is even desired according to the invention, promotes the

19 Use of container materials such as those used for containers with larger diameters

20 are not yet conceivable or unusual for reasons of strength.

21 a simple cardboard tube can be chosen as a container, which due to its low

22 has a high dimensional stability. For example,

23 cartridge cases can also be used as such cases, which are considered typical

24 senware can be produced very cost-effectively and due to their ecological

25 sustainable consistency does not cause any environmental problems. A sufficient

26 The volume can be determined by appropriate length dimensioning of the container.

27. On the sharpener side, the sleeve can be completely open and the sharpener

28 can be clamped into the sleeve in a form-fitting and force-fitting manner without

29 additional connecting means for emptying purposes can be releasably fixed.

30 The inherent strength of the sleeve material ensures these effects together

31 with the dimensional stability of the sleeve. This also allows a pin-like, easily

32 achieve an overall shape that can be accommodated in the inside pocket of a garment.

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Patent attorneys Tergau & Pohl, Nuremberg .".'"&iacgr; .**. »"· j**j ·§£*&bgr;

2 Claim 2 ensures the largest possible angle between the peeling

3 knife and the opposite container neck wall. The larger this angle

4, the more the risk of blockage in the peripheral area of the sharpener is avoided and the greater the pressure from the container neck wall to the

β Peeling chip is the pressure component effectively exerted in the axial direction.

8 In the case of a narrow container neck, claim 3 is particularly advantageous.

9 a maximum inclination of the paring knife relative to the opposite

10 overlying container neck wall in the sense of claim 2.

12 Claim 4 serves to improve spatial economy in the sense of achieving

13 the smallest possible container neck diameter without the risk of

14 clogging of the peripheral area of the sharpener by peeling waste. The space eco-

15 nomics is further enhanced by claim 5. The same applies to

16 spruch 6 is the case. The sharpening cone is thus as tangential as possible to the one

17 side of the container neck jacket in order to avoid damage in the exit area of the knife slide.

18 Sufficient space must be created for unhindered chip removal and chip deflection.

21 By claim 8, the appropriate inclination of the sharpener axis for

22 The container neck axis can also be easily adjusted by tilting the container

23 door opening relative to the axis of the container neck. When using

24 If, for example, a simple sleeve were used as a container, its open end would be

25 at an angle. In this way, conventional plug-in connectors

26 pointed find use according to the invention.

28 The subject matter of the invention and further features of the invention are explained with reference to

29 of the embodiments shown in the figures are explained in more detail. It shows

30 genes:

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Patent Attorneys Tergau & Pohl, Nuremberg ,","'"I ·**;·

&igr; Fig. 1 in exploded view the container and above it in ready-to-insert

2 Position the sharpener.

3 Fig. 2 is a side view of the sharpener in the direction of arrow II of Fig. 1.

4 Fig. 3 a plan view of an alternative, particularly suitable form of the

5 Sharpeners analogous to Fig. 2.

6 Fig. 4-6 are schematic side views of containers according to the invention.

7 sharpeners - partly in section - with pencils in sharpened position

8 ten.

&iacgr;&ogr; The container sharpener consists essentially of the container 1 and the

11 upper container opening 2 detachably inserted sharpener 3. The container 1 has the

12 Form of a cylinder shell closed at its bottom 4 and open at the top

13. It is roughly the shape of a cartridge case. It can be particularly

14 times and inexpensively. This is due to the intentionally low

15 container diameter 5. This gives the container a high degree of dimensional stability and its casing 16 can therefore be formed, for example, by a cardboard sleeve without any loss of stability.

ig The sharpener 3 contains a one-piece plastic injection-molded sharpener body,

20 which guides the guide cone 6 for the conical tip 7 of the

21 pin 8. The guide cone 6 is a hollow cone and the pin 8 consists of

22 essentially consists of a lead coated with a peelable material, e.g. wood.

23 The guide cone 6 is connected in the direction of the longitudinal axis 9 to the flange

24-like housing ring 10, which contains the insertion opening 11 for the pin 8.

25. The housing ring 10 is radially connected to the longitudinal axis

26 se 9 like a ring disk the head plate 12 of the sharpener protrudes.

28 The sharpener 3 is inserted into the container 1 in the direction of arrow 13. There its

29 Housing ring 2 with friction or clamping closure within the container opening so and the head plate 12 forms an end stop resting on the opening edge 14.

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Patent Attorneys Tergau & Pohl, Nuremberg .*·.**** ·**;·|&Igr;^# J

&Idigr; *

&igr; The paring knife 15 is located in the guide cone 6 with its knife edge

2 in a substantially tangential direction. This is the conventional con-

3 structural form of a sharpener. In the case of Fig. 2, the paring knife 15 is

4 of a screw 18 on the pointed body. In the case of the embodiment of

5 Fig. 3, a particularly narrow paring knife 19 is used, which has a width β of only about 3 mm. This makes it possible to guide the cone 6

7 surrounding part of the pointed body with the smallest possible radial projection

8 tion relative to the cone axis 20.

10 When the claims refer to the container neck 21, this means the

11 refers to the area of the container casing 16 which approximately surrounds the sharpener 3.

12 The container interior 22 is the part of the container which is in the direction of the arrow

13 connection 13 to the container neck 21. This is therefore essentially the &eegr; space between the sharpener 3 and the bottom 4 of the container 1.

ie The clear cross-section 5 of the container 1 and thus also of the container neck 21 is

17 so narrow that the inner surface 23 of the container neck 21 has a

the emerging from the knife slot, i.e. in the area of the knife edge 17

is deflected towards the container interior 22. The shavings from the measuring

20 The chip emerging from the slot hits the casing 16 of the adjacent container

21 neck wall 23 (Fig. 6). The wall thickness of the guide cone 6 is

22 lent about 1 mm or less.

24 Due to the small container diameter 5, the container is particularly suitable

25 good for the application of a clip, so that the sharpener like a with a clip

26 pen in the outside pocket or inside pocket of a garment.

27 kes can be worn.

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Patent Attorneys Tergau & Pohl, Nuremberg .".""· *":*..· I I'

List of reference symbols

1 container 2 Container opening 3 Sharpener 4 Floor 5 Container diameter 6 Guide cone 7 Great 8th Pen 9 Longitudinal axis 10 Case ring 11 Insertion opening 12 Headstock 13 Arrow direction 14 Opening edge 15 Paring knife 16 Container shell 17 Knife edge 18 screw 19 Paring knife 20 Cone axis 21 Container neck 22 Container interior 23 inner surface 24 acute angle 25 angle 26 angle

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Claims (1)

Patent Attorneys Tergau & Pohl, Nuremberg ' * · · * *··* . *.,; .*** Page -| &igr; 96246-1/13/34 3 03.08.1998 6 Claims &bgr; 1. Container sharpener for leads coated with a peelable material, in particular 9 especially for wood-coated writing leads, 10 - with a container (1) for the peeling waste, 11 - with a sharpener (3) fitted in the container opening (2) with guide 12 cone (6) and paring knife (15) and &eegr; - with an approximately hollow cylindrical cross-sectional shape of at least the &eegr; container opening (2) adjacent to the area of the peeling knife (15,19) is surrounding container neck (21), to which the container interior (22) in the which essentially follows the direction of the neck axis (9), 17 characterized by Such a narrow dimensioning of the clear cross-section (5) of the container holder 19 ses (21) and/or by such positioning of the sharpener (3) in the 20 container neck (21), that the inner surface (23) of the container neck (21) 21 shavings emerging from the knife slot of the sharpener (3) in the direction 22 redirects the pressure to the interior of the container. 24 2. Container sharpener in particular according to claim 1, 25 characterized by 26 that the center axes (20,9) of the guide cone (6) of the sharpener (3) and the 27 container neck (21) form an acute angle (24) with each other such that 28 the angle (25) between the paring knife edge (17) and the longitudinal direction (9) 29 of the opposite container neck wall (23) is larger than on the 30 opposite side of the angle (26) between the casing of the guide 31 cone (6) and the longitudinal direction of the opposite container neck 32 wall. (N:\AN\96246.DOC) 03 August 1998 Patent Attorneys Tergau & Pohl, Nuremberg &iacgr; I · &idigr;&iacgr; ··* · · *«^ Page &igr; 3. Container sharpener according to claim 1 or 2, wherein the sharpener consists of a 2 coin-shaped plugs that can be inserted into the opening (2) of the container neck (23). 3 ing part (10) and an associated, circumferentially thin-walled guide 4 cone (6) with a paring knife (15) fixed to it, 5 characterized by 6 that the guide cone (6) with its cutting edge (17) is against the 7 overlying jacket (16) approximately parallel to the adjacent container neck 8 wall (23). 10 4. Container sharpener according to one of claims 1 to 3, 11 characterized by 12 that the guide cone (6) with its cutting edge (17) is against the 13 overlying jacket (16) rests against the adjacent container neck wall (23). ie 5. Container sharpener according to one of the preceding claims, &igr;? characterized by ie a wall thickness of the guide cone of max. 1 mm. 20 6. Container sharpener according to one or more of the preceding claims 21 with a one-piece plastic injection-molded sharpener body according to one of the 22 preceding claims, 23 characterized by 24 that the width of the paring knife is max. 3.5 mm and that the paring 25 knives fixed to the sharpener or its guide cone by overmolding 26 is. 28 7. Container sharpener according to one or more of the preceding claims, 29 characterized by so that the sharpener (3) is inserted into the container opening (2) in a tight fit. (N:\AN\96246.DOC) 03 August 1998 Patent Attorneys Tergau & Pohl, Nuremberg &iacgr; · ·* &idigr;**,**', « ·*·&idigr;&Igr;*** ^Page &igr; 8. Container sharpener according to one or more of the preceding claims, 2 characterized by 3 that the container opening (2) forms an angle other than 90° with the 4 Longitudinal axis (9) of the container neck. (N:\AN\96246.DOC) 03 August 1998