Pencil sharpener for sharpening pencils

Abstract

The invention relates to a pencil sharpener for sharpening a pencil (3), comprising at least one pencil sharpener body (4) having a pencil sharpener channel (2), the pencil sharpener body (4) having at least one first wall (4.1) directly defining the pencil sharpener channel (2) and at least one second wall (4.2) not directly defining a pencil sharpener channel (4.2), and the pencil sharpener comprises at least one safety element (5) which is integrally formed with the at least one second wall part (4.2).

Description

[0001] This application is a divisional application with an application date of October 20, 2021, application number 202111219047.3, and invention name “Pencil sharpener for sharpening pencils”. Technical Field

[0002] The present invention relates to a pencil sharpener for sharpening pencils, such as drawing pens, writing pens, cosmetic pencils or plotting pens. Background Art

[0003] Such pencil sharpeners are generally known in the prior art in various embodiments.

[0004] A further known problem is the possibility in conventional pencil sharpeners of a person inserting a finger into the channel of the pencil sharpener, which can cause injuries, ie cuts, in particular by the typical knife-like or blade-shaped sharp element.

[0005] To solve this problem, the prior art discloses the concept of providing a safety device that at least makes it difficult for fingers to enter the channel of a pencil sharpener. For example, reference is made to the concept described in German patent DE 10 2009 051 667 B4, which provides a pencil sharpener with a safety element that at least partially fills the gap in the safety position and releases the gap in the area of the blade in the operating position.

[0006] Although this principle provides effective and reliable protection against corresponding injuries, the known solutions require improvement from various geometrical and functional points of view, for example with regard to a compact external design of the pencil sharpener or the pencil sharpener body, which also ensures that the corresponding safety element cannot be lost. Improvements are also needed in terms of manufacturing technology, in particular with regard to efficient and centralized manufacturing. Summary of the Invention

[0007] It is an object of the present invention to provide an improved pencil sharpener.

[0008] A first aspect of the invention relates to a pencil sharpener for sharpening pencils, such as drawing pens, writing pens, cosmetic pencils or plotter pens.

[0009] The pencil sharpener comprises at least one single-piece or multi-piece pencil sharpener body. The pencil sharpener body can also be referred to as or considered as the base of the pencil sharpener.

[0010] The sharpener body is composed of a plurality of walls defining the spatial shape of the sharpener body. The sharpener body thus comprises a plurality of walls defining the spatial shape of the sharpener body. These walls may differ in terms of geometrical parameters, such as size, arrangement, orientation, etc., and / or functional parameters, such as function. Each wall may comprise one or more wall segments.

[0011] The pencil sharpener body has at least one pencil sharpener channel which at least partially passes through the pencil sharpener body. The at least one pencil sharpener channel, which is typically at least partially conical or tapered, is provided in a known manner to accommodate pencils to be sharpened with a pencil sharpener.

[0012] The sharpener channel is directly defined by at least one first wall portion. The sharpener body thus comprises at least one first wall portion that directly defines the sharpener channel. The at least one first wall portion is thus constructed or arranged in the region of the sharpener body comprising the at least one sharpener channel and directly encloses the volume defined by the sharpener channel, which typically extends at least partially in a conical manner. The at least one first wall portion is typically the wall portion with which the pencil and the sharpener directly contact during the sharpening process, and is also the wall portion directly contacted by the pencil during the sharpening process.

[0013] The first wall portion is a wall portion which defines the spatial shape of the pencil sharpener body or is formed thereby.

[0014] Since the pencil sharpener channel is usually designed to be at least partially conical or to run conically, as described above, the at least one first wall section typically also has a conical or conical basic shape at least partially.

[0015] The at least one first wall section typically also defines an opening, in particular a (longitudinal) gap-shaped or slot-shaped opening, through which waste, ie in particular chips, generated during the sharpening process can be discharged from the pencil sharpener channel.

[0016] In addition to the at least one first wall portion, the sharpener body further comprises at least one second wall portion that does not directly define the at least one sharpener channel. The at least one second wall portion is thus spatially spaced apart from the at least one first wall portion, such that the second wall portion does not directly define the sharpener channel. The at least one second wall portion is typically a wall portion that does not directly contact the pencil sharpener during the sharpening process, and is also a wall portion that is not directly contacted by the pencil during the sharpening process.

[0017] The second wall portion is a wall portion that defines the spatial object shape of the pencil sharpener body or is formed thereby.

[0018] From the above embodiments, it follows that at least one first wall portion can form or consist of an inner wall exposed relative to the spatial object shape of the pencil sharpener, and at least one second wall portion can form or consist of an outer wall exposed relative to the spatial object shape of the pencil sharpener, for example.

[0019] The pencil sharpener is designed with a safety device that secures the sharpener against the unintended introduction of a finger into at least one sharpener channel, and similarly applies to all parts of the human body. The safety device includes at least one safety element that can be switched into a first position or orientation, also referred to as a safety position or orientation, and a second position or orientation, also referred to as an unsafe position or orientation. In the first position or orientation, the safety element extends a first distance into the sharpener channel with a safety section, and in the second position or orientation, the safety element does not extend into the sharpener channel with a safety section or extends into the sharpener channel with a second distance that is less than the first distance. As further noted, the safety element is typically manufactured and configured to prevent loss on the sharpener body or a sharpener body component. Thus, the at least one safety element is not a separate component, for example, fixed to the sharpener body by form-locking and / or force-locking means, but is typically an integral component of the sharpener body, as determined by manufacturing.

[0020] Typically, the at least one safety element is moved from a first position into a second position by inserting a pencil into the at least one sharpener channel. Accordingly, the pencil forces the at least one safety element or safety section out of the sharpener channel as the at least one safety element is moved from the first position into the second position. Specifically, due to its size, the pencil exerts a force on the safety section, typically radially with respect to a symmetric or central axis of the at least one sharpener channel, which causes the at least one safety element to move from the first position into the second position.

[0021] By removing the pencil introduced into the sharpener channel from the sharpener channel, the at least one safety element is typically returned from the second position to the first position, possibly, in particular due to deformation, by the application of a spring force. Accordingly, the at least one safety element or safety section is no longer forced out of the sharpener channel by the pencil, which occurs as the at least one safety element is returned from the second position to the first position, possibly, in particular due to deformation, by the application of a spring force. By removing the pencil from the sharpener channel, the forces acting on the safety section due to the pencil's size are eliminated, which causes the at least one safety element to return from the first position to the second position.

[0022] The at least one safety element may have a web-like or web-like basic shape. Depending on the orientation of the at least one safety element, the safety section of the at least one safety element may be arranged or formed, for example, at an angle, i.e., in particular at a right angle, to the safety element section defining the web-like or web-like basic shape of the at least one safety element.

[0023] Importantly, the at least one security element is formed integrally or integrally with the at least one second wall portion. This integral or integral design of the at least one security element with the at least one second wall portion offers various advantages. For example, the integral or integral design of the at least one security element with the at least one second wall portion allows the at least one security element to be arranged on the pencil sharpener body in a manner that prevents loss, and also allows for a compact external design of the pencil sharpener or the pencil sharpener body. The integral or integral design of the at least one security element with the at least one second wall portion also offers manufacturing advantages, as the at least one security element can be formed at least together with the at least one second wall portion.

[0024] The one-piece or integral design of the at least one safety element is typically determined by the manufacturing process and can be achieved, for example, by forming the at least one second wall or the at least one safety element in a casting process, particularly a plastic injection molding process. Thus, the at least one second wall and the at least one safety element can be formed in a common casting process. It is also conceivable to spray the at least one safety element onto the at least one second wall, or vice versa. Of course, the entire sharpener body can also be formed in a casting process, particularly a plastic injection molding process.

[0025] It is therefore generally applicable that the pencil sharpener or the pencil sharpener body can be designed as a cast part, ie in particular as a plastic cast part.

[0026] Because the at least one safety element is integrally or integrally formed with the at least one second wall portion, the geometry of the at least one sharpener channel does not change when the at least one safety element transitions from a first position to a second position, or vice versa. Thus, the movement of the safety element from the first position to the second position, or vice versa, does not occur in conjunction with a movement, deformation, or the like of the at least one first wall portion, which could cause a change in the geometry of the sharpener channel. Consequently, the geometry of the at least one sharpener channel does not change when the at least one safety element transitions from the first position to the second position, or vice versa.

[0027] As a result, the at least one first wall portion is not deformed when the at least one safety element is transferred from the first position into the second position and vice versa. This is typically due to the at least one first wall portion being spatially spaced apart from the at least one second wall portion and correspondingly mechanically, i.e., in particular kinematically, separated, so that the transfer of the at least one safety element from the first position into the second position and vice versa does not result in a deformation of the at least one first wall portion.

[0028] The pencil sharpener described here is thereby improved from a geometrical as well as a functional point of view; thus, a better pencil sharpener is provided.

[0029] It has already been mentioned that the pencil sharpener body can be designed in one piece or in multiple pieces, so that in principle two different embodiments are conceivable, which will now be described in detail.

[0030] In an embodiment in which the pencil sharpener body is implemented in one piece, the first and second wall portions can be constructed integrally with the pencil sharpener body. Thus, the pencil sharpener body is a component implemented in one piece, which comprises at least one first wall portion and at least one second wall portion and, respectively, at least one safety element.

[0031] In this case, at least one first wall portion can be formed on or consist of a first pencil sharpener body portion, and a second wall portion can be formed on or consist of a second pencil sharpener body portion.

[0032] The at least one first wall portion can be a wall portion that forms the inner side of the pencil sharpener or the pencil sharpener body, in particular the inner side of the pencil that contacts the pencil during the sharpening process, or can be assigned thereto or assigned thereto. The at least one second wall portion can be a wall portion that forms the outer side of the pencil sharpener or the pencil sharpener body, in particular the outer side that is exposed, or can be assigned thereto or assigned thereto.

[0033] In an embodiment in which the pencil sharpener body is designed as a multi-part body, at least one first wall portion can be constructed or arranged on the first pencil sharpener body part, and at least one second wall portion can be constructed or arranged on the second pencil sharpener body part that can be connected or connected to the first pencil sharpener body part. Thus, the pencil sharpener body is a multi-part component assembly comprising a first pencil sharpener body part and a first wall portion arranged or constructed thereon, and a second pencil sharpener body part and a second wall portion arranged or constructed thereon.

[0034] At least one first connecting element may be arranged or configured on the first pencil sharpener body part, and at least one second connecting element may be arranged or configured on the second pencil sharpener body part. The respective first connecting element is typically configured to cooperate with the respective second connecting element in a particularly form-locking and / or force-locking manner to form a particularly form-locking and / or force-locking connection of the pencil sharpener body parts. The first connecting element may thus be particularly a form-locking connecting element, such as a projection, and / or a force-locking connecting element, such as a screw element. The second connecting element may thus correspondingly be a corresponding mating form-locking connecting element, such as a receptacle for a respective projection, and / or a corresponding force-locking connecting element, such as a receptacle for a respective screw element.

[0035] The connection between the first pencil sharpener body part and the second pencil sharpener body part can in principle be detachable (without damage or destruction) or non-detachable (without damage or destruction).

[0036] The at least one first sharpener body part may be part of or assignable to the underside of the sharpener or the sharpener body. The at least one second sharpener body part may be part of or assignable to the upper side of the sharpener or the sharpener body.

[0037] The second pencil sharpener body component may, for example, have a U-shaped or U-shaped basic shape. The at least one safety element may extend parallel to or at an angle to the arms of the second pencil sharpener body component that define the U-shaped or U-shaped basic shape. The U-shaped or U-shaped basic shape may be suitable for a pencil sharpener body having a square basic shape because it does not damage the pencil sharpener body. However, the foregoing also applies to other basic shapes of the second pencil sharpener body component.

[0038] Regardless of whether the pencil sharpener body is constructed in one piece or in multiple pieces, as shown, the at least one safety element is typically transferred from the first position to the second position by at least partial movement of the at least one safety element. The at least partial movement of the at least one safety element typically occurs relative to the at least one pencil sharpener channel. The corresponding movement of the at least one safety element can, for example, be a tilting or pivoting movement; the at least one safety element can thus be transferred into the first and second positions and vice versa, for example, by a tilting or pivoting movement about a bending, tilting or pivoting axis. The corresponding tilting or pivoting movement can also be achieved by bending the at least one safety element at least partially. Thus, the at least one safety element can be constructed in one piece with the at least one second wall portion by designing a tilting or pivoting device including a bending, tilting or pivoting axis defined, for example, by a point-shaped or linear material weakening. The corresponding bending, tilting or pivoting axis can, for example, extend parallel to the symmetry or central axis of the pencil sharpener channel or at an angle thereto, i.e., in particular at a right angle.

[0039] In all embodiments, the pencil sharpener typically has at least one, in particular blade-shaped or blade-like, sharpening element. The sharpening element is typically arranged on a wall of the pencil sharpener body, for example by screwing or tightening, so that the sharpening element can act in a known manner with a blade-shaped or blade-like sharpening section on a pencil introduced into the pencil sharpener channel.

[0040] All the above-described embodiments apply equally to single pencil sharpeners, ie pencil sharpeners having a (single) pencil sharpener channel, and to multiple pencil sharpeners, ie pencil sharpeners having a plurality of pencil sharpener channels.

[0041] A second aspect of the present invention relates to a method for sharpening a pencil. This method comprises sharpening the pencil using the pencil sharpener according to the first aspect of the present invention. All embodiments relating to the pencil according to the first aspect of the present invention apply analogously to the method according to the second aspect of the present invention, and vice versa.

[0042] The method may include the following steps: introducing a pencil into a sharpener channel of a pencil sharpener body; moving, in particular rotating, the pencil relative to the sharpener body, thereby stripping material from the pencil, in particular a lead or a covering element surrounding the lead. As described, the introduction of the pencil into the sharpener channel causes at least one safety element to transition from a first position to a second position. Also as described, removing the pencil from the sharpener channel causes the at least one safety element to return from the second position to the first position. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The present invention is described in detail with reference to the embodiments shown in the accompanying drawings.

[0044] Figure 1-5 Schematic diagrams of the principles of a pencil sharpener according to the first embodiment are shown respectively;

[0045] Figure 6-7 Schematic diagrams showing the principles of a pencil sharpener according to a second embodiment are shown respectively;

[0046] Figure 8-9 Schematic diagrams of the principles of a pencil sharpener according to a third embodiment are shown respectively;

[0047] Figure 10-12 Schematic diagrams of the principles of a pencil sharpener according to a fourth embodiment are shown respectively. DETAILED DESCRIPTION

[0048] Figure 1-5 FIG. 1 shows a schematic diagram of the principle of a pencil sharpener 1 according to a first embodiment. Figure 1 The middle is a stereogram, Figure 2 The middle is the front view through (transverse) section, Figure 3 The top view is in Figure 4 In the perspective view, there is a pencil 3 introduced into the pencil sharpener channel 2, and Figure 5 3 shows a (longitudinal) sectioned view of a pencil 3 which has been introduced into the pencil sharpener channel 2 .

[0049] The pencil sharpener 1 is generally used for sharpening pencils 3, ie for example drawing pens, writing pens, cosmetic pencils or plotting pens.

[0050] The pencil sharpener 1 comprises a pencil sharpener body 4, which is composed of a plurality of walls 4.1-4.n defining the spatial shape of the pencil sharpener body 4. The walls 4.1-4.n may differ in terms of geometrical parameters, such as size, arrangement, orientation, etc., and / or functional parameters, such as function. Each wall 4.1-4.n may comprise one or more wall segments.

[0051] The pencil sharpener body 4 has the aforementioned pencil sharpener channel 2, which at least partially passes through the pencil sharpener body. The pencil sharpener channel 2, which is at least partially conical or extends conically, is provided in a known manner to accommodate pencils 3 to be sharpened with the pencil sharpener 1 (see, for example, Figure 4 、 Figure 5 ).

[0052] The sharpener channel 2 is directly bounded by the first wall 4.1. The sharpener body 4 thus has a first wall 4.1 that directly bounds the sharpener channel 2. The first wall 4.1, which accordingly has an at least partially conical basic shape, is formed in the region of the sharpener body 4 containing the sharpener channel 2 and directly encloses the at least partially conical volume defined by the sharpener channel 2. The first wall 4.1 is thus the wall that directly contacts the pencil 3 during the sharpening process performed with the sharpener 1 and is therefore the wall that is directly contacted by the pencil 3 during the sharpening process.

[0053] The first wall portion 4 . 1 typically also defines a (longitudinal) gap-shaped or -shaped opening 4 . 5 , through which waste, ie in particular shavings, generated during the sharpening process can be discharged from the pencil sharpener channel 2 .

[0054] In addition to the first wall portion 4.1, the pencil sharpener 4 has a second wall portion 4.2 which does not directly delimit the pencil sharpener channel 2. The second wall portion 4.2 is thus spatially spaced apart from the first wall portion 4.1, so that the second wall portion does not directly delimit the pencil sharpener channel 2. The second wall portion does not directly contact the pencil 3 during the sharpening process performed with the pencil sharpener 1.

[0055] As can be seen from the drawings, the first wall portion 4.1 forms or can be formed from an inner wall exposed in terms of the spatial object shape of the pencil sharpener 1 and the second wall portion 4.2 forms or can be formed from an outer wall exposed in terms of the spatial object shape of the pencil sharpener 1.

[0056] The pencil sharpener 1 is provided with a safety device (not shown) which secures the pencil sharpener against the unintentional introduction of fingers into the pencil sharpener channel 2, and similarly for all parts of the human body. The safety device comprises a safety element 5 having a basic shape in the form of a connecting piece or a connecting piece, which can be transferred into a position which can also be referred to as a safety position and in which Figure 1-3 In the first position or orientation shown in and also referred to as the unsafe position and Figure 4 、 Figure 5 In the second position shown in FIG, the safety section 5.1 of the safety element extends into the pencil sharpener channel 2 by a first distance in the first position and not at all or by a second, relatively small distance in the second position.

[0057] If especially according to Figure 4 、 Figure 5 As can be seen, the introduction of the pencil 3 into the sharpener channel 2 causes the safety element 5 to transition from the first position into the second position. Accordingly, the pencil 3 forces the safety element 5 or the safety section 5.1 out of the sharpener channel 2 as the safety element 5 transitions from the first position into the second position. Specifically, due to its size, the pencil 3 exerts a force on the safety section 5.1 radially with respect to the symmetry or central axis of the sharpener channel 2, which causes the safety element 5 to transition from the first position into the second position.

[0058] By removing the pencil 3 from the sharpener channel 2, the spring force applied due to the deformation causes the safety element 5 to return from the second position to the first position. Accordingly, the pencil 2 no longer forces the safety element 5 or the safety section 5.1 out of the sharpener channel 2, which occurs as the safety element 5 returns from the second position to the first position due to the spring force applied due to the deformation. By removing the pencil 3 from the sharpener channel 2, the force acting on the safety section 5.1 due to the pencil 3's size is eliminated, causing the safety element 5 to return from the first position to the second position.

[0059] The one-piece or integral design of the safety element 5 and the second wall portion 4.2 yields various advantages. For example, the one-piece or integral design of the safety element 5 and the second wall portion 4.2 allows the safety element 4.1 to be securely positioned on the pencil sharpener body 4 in a manner that prevents loss, and also allows for a compact external design of the pencil sharpener 1 or the pencil sharpener body 4. The one-piece or integral design of the safety element 5 also offers manufacturing advantages, as the safety element 5 can be constructed at least together with the second wall portion 4.2. Of course, the entire pencil sharpener 1 or the pencil sharpener body 4 can also be constructed in a casting process, particularly a plastic casting process.

[0060] The one-piece or integral embodiment of the safety element 5 and the second wall 4.2 is typically a matter of production and can result from the formation of at least the second wall 4.2 and the safety element 5 in a casting process, in particular a plastic casting process. Thus, the second wall 4.2 and the safety element 5 can be formed in a common casting process; it is also conceivable to injection-mold the safety element 5 onto the second wall 4.2 or vice versa.

[0061] The safety element 5 is thus typically designed to be securely attached to the pencil sharpener body 4 due to manufacturing. The safety element 5 is thus not a separate component, for example, fixed to the pencil sharpener body 4 in a form-fitting and / or force-fitting manner, but is typically an integral component of the pencil sharpener body 4 due to manufacturing.

[0062] It therefore generally applies that the pencil sharpener 1 or the pencil sharpener body 2 can be designed as a cast part, ie in particular as a plastic cast part.

[0063] Because the safety element 5 is integrally or integrally formed with the second wall portion 4.2, the geometry of the sharpener channel 2 does not change when the safety element 5 transitions from the first position to the second position, or vice versa. Thus, the movement of the safety element 5 from the first position to the second position, or vice versa, does not occur in conjunction with a movement, deformation, or the like of the first wall portion 4.1, which could cause a change in the geometry of the sharpener channel 2. Consequently, the geometry of the sharpener channel 2 does not change when the safety element 5 transitions from the first position to the second position, or vice versa.

[0064] As a result, the first wall portion does not deform when the safety element 5 is transferred from the first position into the second position and vice versa. This is because the first wall portion 4.1 is spatially separated from the second wall portion 4.1 and is correspondingly mechanically, i.e., in particular kinematically, separated, so that the transfer of the safety element 5 from the first position into the second position and vice versa does not cause a deformation of the first wall portion 4.1.

[0065] As the safety element 5 moves relative to the sharpener channel 2, it transitions from the first position to the second position, and vice versa. The movement can be, for example, a tilting or swiveling motion; the safety element 5 can thus be transitioned into the first and second positions, and vice versa, for example, by a tilting or swiveling motion about a bending, tilting, or swiveling axis, which is oriented, for example, horizontally and (substantially) parallel to the upper and lower sides of the sharpener body 4 in the figures. Thus, with a tilting or swiveling device including a bending, tilting, or swiveling axis defined, for example, by a point-like or linear material weakening, the safety element 5 can be constructed integrally with the second wall portion 4.2.

[0066] exist Figure 1-5 In the embodiment shown, the sharpener body 4 is constructed in one piece. It can be seen that the first and second wall portions 4.1, 4.2 are each constructed in one piece with the sharpener body 4. In this embodiment, the sharpener body 4 is a one-piece component comprising the first wall portion 4.1, the second wall portion 4.2 and the safety element 5.

[0067] Here, the first wall portion 4.1 is formed on or by the first sharpener body section, and the second wall portion 4.2 is formed on or by the second sharpener body section. The first wall portion 4.1 can be a wall portion that directly defines the inner side of the sharpener 1 or the sharpener body 4 and defines the sharpener channel 2, or can be assigned to or assigned to it. The second wall portion 4.2 can be a wall portion that forms the exposed outer side of the sharpener 1 or the sharpener body 4, or can be assigned to or assigned to it.

[0068] exist Figure 1-5In the embodiment shown, the pencil sharpener 1 or the pencil sharpener body 4 further has at least one opening 7 (optional), which is advantageous from a manufacturing perspective because it facilitates the introduction of sliding elements of a casting tool during the casting process of the pencil sharpener 1 and / or facilitates demoulding the pencil sharpener body 4 from the casting tool. In the embodiment shown, the at least one opening 7 is arranged or formed, for example, in the region of the front side of the pencil sharpener 1 or the pencil sharpener body 4.

[0069] Figure 6 、 Figure 7 FIG. 1 shows a schematic diagram of the principle of a pencil sharpener 1 according to a second embodiment. Figure 6 、 Figure 7 The medium pencil sharpener 1 is shown in each case in a perspective view.

[0070] and Figure 1-5 Unlike the first embodiment shown in Figure 6 、 Figure 7 The second exemplary embodiment shown in FIG. 4 relates to a multi-part embodiment variant of the pencil sharpener body 4 , which consists of a first pencil sharpener body part 4 . 3 and a second pencil sharpener body part 4 . 4 .

[0071] It can be seen that the first sharpener body part 4.3 can be part of the lower side of the sharpener 1 or the sharpener body 4 or can be assigned to it or assigned to it and the second sharpener body part 4.4 can be part of the upper side of the sharpener 1 or the sharpener body 4 or can be assigned to it or assigned to it.

[0072] It can also be seen that the first wall portion 4.1 is formed on the first pencil sharpener body part 4.3, and the second wall portion 4.2 is formed on the second pencil sharpener body part 4.4 which can be connected or connected to the first pencil sharpener body part 4.3. Here, the pencil sharpener body 4 is a multi-part component assembly comprising the first pencil sharpener body part 4.3 and the first wall portion 4.1 arranged or formed thereon, and the second pencil sharpener body part 4.4 and the second wall portion 4.2 arranged or formed thereon.

[0073] The second pencil sharpener body 4.4 has, for example, a U-shaped or U-shaped basic shape. Here, for example, the safety element 5 extends parallel to the arms of the second pencil sharpener body 4.4 that define the U-shaped or U-shaped basic shape. The U-shaped or U-shaped basic shape may be suitable for a pencil sharpener body 4 having a square basic shape because it does not damage the sharpener body. However, the foregoing also applies to other basic shapes of the second pencil sharpener body 4.4.

[0074] A first connecting element 4.3.1 is configured on the first pencil sharpener body part 4.3, and a second connecting element 4.4.1 is configured on the second pencil sharpener body part 4.4. The first connecting element 4.3.1 is designed to cooperate with the second connecting element 4.4.1 to form a secure connection between the pencil sharpener body parts 4.3 and 4.4. In the illustrated embodiment, the first connecting element 4.3.1 is, for example, a form-locking connecting element, i.e., a receptacle, and the second connecting element 4.4.1 is, for example, a corresponding form-locking connecting element, i.e., a pin-shaped or pin-shaped protrusion with an undercut in the region of its free end. Of course, a reverse configuration of the respective connecting elements 4.3.1 and 4.4.1 is also conceivable. Thus, the respective connecting elements 4.3.1 and 4.4.1 are generally configured to cooperate to form a form-locking connection between the pencil sharpener body parts 4.3 and 4.4. This is similarly applicable to other connection principles, such as force-locking connection principles.

[0075] Figure 8 、 Figure 9 FIG. 1 shows a schematic diagram of the principle of a pencil sharpener 1 according to a third embodiment. Figure 8 、 Figure 9 3 and 4 show a perspective view of the pencil sharpener 1 .

[0076] Figure 8 、 Figure 9 The embodiment shown in Figure 6 、 Figure 7 The second embodiment shown in FIG. Figure 1-5 The difference from the first exemplary embodiment shown in FIG. 1 is the arrangement of the bending, tilting or swiveling axis of the safety element 5, which is also oriented at right angles to the axis of symmetry or the central axis of the pencil sharpener channel 2, and which is arranged in the front region of the pencil sharpener body 4, i.e. (approximately) above an insertion opening in the pencil sharpener channel 2, which is not shown in detail.

[0077] Figure 10-12 FIG. 1 shows a schematic diagram of the principle of a pencil sharpener 1 according to a fourth embodiment. Figure 10 、 Figure 11 Stereoscopic images and Figure 12 Shown in top view.

[0078] and Figure 10-12 The embodiment shown in Figure 8 、 Figure 9 The third embodiment shown in Figure 6 、 Figure 7 The second embodiment shown in FIG. Figure 1-5The first embodiment shown in FIG is distinguished by the arrangement of the bending, tilting or swiveling axis of the safety element 5 , which is also oriented parallel to the axis of symmetry or central axis of the pencil sharpener channel 2 and is arranged on an arm of the pencil sharpener body part 4 . 4 .

[0079] for Figure 6-12 The embodiment shown in FIG. 4 generally applies in that the connection between the respective first and second pencil sharpener body parts 4.3, 4.4 is detachable (without damage or destruction) or non-detachable (without damage or destruction).

[0080] In all embodiments, the pencil sharpener 1 or the pencil sharpener body 4 has a particularly blade-like or blade-shaped sharpening element 6. The sharpening element 6 is arranged, for example, by screwing or screwing onto a wall portion (not shown in detail) of the pencil sharpener body 4, so that the sharpening element can act in a known manner with a blade-like or blade-shaped sharpening section on the pencil 3 or its lead 3.1 or its casing introduced into the pencil sharpener channel 2. The wall portion on which the sharpening element 6 is located can be the second wall portion 4.2 or a wall portion thereof.

[0081] The pencil sharpener 1 shown in the figures can be used to carry out a method for sharpening a pencil 3. The method can include the following steps: inserting the pencil 3 into the pencil sharpener channel 2 of the pencil sharpener body 4, moving the pencil relative to the pencil sharpener body 4, i.e., in particular rotating the pencil, thereby removing material from the pencil 3, i.e., in particular the lead 3.1 or the cover 3.2 covering the lead 3.1. For example Figure 4 、 Figure 5 As shown in FIG, corresponding safety element 5 is changed into second position from first position owing to pencil 3 is introduced into pencil sharpener channel 2. Also as described, by pencil 3 is led out from pencil sharpener channel 2, safety element 5 is returned into first position from second position.

[0082] Although the exemplary embodiments shown in the figures always show a single pencil sharpener, ie a pencil sharpener with a (single) pencil sharpener channel 2 , all embodiments apply analogously to multiple pencil sharpeners, ie pencil sharpeners with a plurality of pencil sharpener channels 2 .

[0083] One, several or all features associated with one embodiment may be combined with one, several or all features associated with another embodiment.

Claims

1. A pencil sharpener (1) for sharpening pencils (3), said pencil sharpener (1) comprising at least one pencil sharpener body (4) having a pencil sharpener channel (2), wherein: The pencil sharpener body (4) has at least one first wall portion (4.1) that directly defines the pencil sharpener channel (2) and at least one second wall portion (4.2) that does not directly define the pencil sharpener channel (2). The pencil sharpener is characterized in that the pencil sharpener comprises at least one safety element (5) constructed integrally with the at least one second wall portion (4.2), the at least one safety element being capable of being switched into a first position in which the safety element with a safety section (5.1) extends into the pencil sharpener channel (2) by a first distance, and a second position in which the safety element with the safety section (5.1) does not extend into the pencil sharpener channel (2) or extends into the pencil sharpener channel by a second distance that is smaller than the first distance.

2. The pencil sharpener according to claim 1, wherein: The pencil sharpener body (4) is implemented in one piece, wherein the at least one first wall portion (4.1) and the at least one second wall portion (4.2) are each constructed in one piece on the pencil sharpener body (4) or in one piece therewith.

3. The pencil sharpener according to claim 2, wherein: The at least one first wall portion (4.1) is configured on or formed by a first pencil sharpener body section, and the at least one second wall portion (4.2) is configured on or formed by a second pencil sharpener body section.

4. The pencil sharpener according to claim 2 or 3, characterized in that: The at least one first wall portion (4.1) forms the inner side of the pencil sharpener (1) or the pencil sharpener body (4), in particular the wall portion that contacts the inner side of the pencil (3) during the sharpening process, and the at least one second wall portion (4.2) forms the outer side of the pencil sharpener (1) or the pencil sharpener body (4), in particular the wall portion that exposes the outer side.

5. The pencil sharpener according to claim 1, wherein: The pencil sharpener body (4) is implemented in multiple parts, wherein the at least one first wall portion (4.1) is constructed on a first pencil sharpener body part (4.3) and the at least one second wall portion (4.2) is constructed on a second pencil sharpener body part (4.4) that can be connected or is connected to the first pencil sharpener body part (4.3).

6. The pencil sharpener according to claim 5, characterized in that At least one first connecting element (4.3.1) is arranged or constructed on the first pencil sharpener body part (4.3) and at least one second connecting element (4.4.1) is arranged or constructed on the second pencil sharpener body part (4.4), wherein the first connecting element (4.3.1) is configured to cooperate with the second connecting element (4.4.1) in a form-locking and / or force-locking manner to form a connection between the pencil sharpener body parts (4.3, 4.4).

7. The pencil sharpener according to claim 5 or 6, characterized in that: The first pencil sharpener body part (4.3) forms the lower side of the pencil sharpener (1) or the pencil sharpener body (4) and the second pencil sharpener body part (4.4) forms the upper side of the pencil sharpener (1) or the pencil sharpener body.

8. Pencil sharpener according to any one of the preceding claims, characterized in that The safety element (5) can be transferred into a first and a second position by a tilting or pivoting movement.

9. Pencil sharpener according to any one of the preceding claims, characterized in that The safety element (5) has a web-like or web-like basic shape.

10. Pencil sharpener according to any one of the preceding claims, characterized in that The at least one first wall portion (4.1) is not deformable or is not deformed when the safety element (5) is transferred from the first position into the second position.

11. Pencil sharpener according to any one of the preceding claims, characterized in that The at least one first wall portion (4.1) has, at least in sections, a conical or conical basic shape.

12. A method for sharpening a pencil (3), characterized in that A pencil sharpener (1) according to any one of the preceding claims is used for sharpening a pencil (3).

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