Decorative pencil sharpener

Abstract

The utility model relates to a decorative pencil sharpener which comprises a pencil sharpening mechanism and a shell used for forming a chip collecting cavity located below the pencil sharpening mechanism, the pencil sharpening mechanism comprises a main body made of plastic materials and a pencil sharpening part at least comprising the plastic materials, the shell is a stamping shell formed by stamping metal materials, and the shell is a cylindrical shell. The stamping shell is provided with a peripheral wall conforming to the outer contour of a main body of the pencil sharpening mechanism and a scrap collecting cavity defined by the peripheral wall, and a turned-over edge connected with the main body in a shape matched mode is further stamped on the peripheral wall of the stamping shell. Wherein the outermost side of the peripheral wall of the stamping shell is also provided with a pattern layer printed by thermosetting ink. Therefore, the decorative pencil sharpener can realize the visual aesthetic feeling which cannot be realized by the existing pencil sharpener.

Description

Technical Field

[0001] This utility model relates to the field of stationery and school supplies technology, specifically to a decorative pencil sharpener that is easy to manufacture and has an excellent appearance and pleasing visual effect. Background Technology

[0002] Pencil sharpeners are widely used in many people's work. Structurally, they can be broadly categorized into hand-cranked, push-type, electric, and hand-rolling types. Hand-cranked pencil sharpeners primarily consist of a handle; turning the handle activates the internal sharpening mechanism to cut the pencil. Electric sharpeners replace the manual part with a motor-driven mechanism. The sharpening mechanism of electric sharpeners is generally larger and more complex, and during normal use, the broken pencil lead is prone to breakage, causing it to become stuck inside the sharpening mechanism. Furthermore, it is not easy for the average consumer to repair, increasing inconvenience.

[0003] Hand-rolled pencil sharpeners are widely used. Their main structure consists of a sharpening mechanism within the main body. This mechanism has a conical tube with a blade at its edge. When a pencil is inserted into the tube and rotated to contact the blade, it is sharpened into a conical shape for easier writing. It is known that, to facilitate the collection and storage of residual wood shavings and lead powder generated during pencil sharpening, it is desirable to house the main body within an outer casing that forms a shavings collection chamber or storage compartment.

[0004] Since the majority of users of pencil sharpeners are primary school students, the overall appearance of the pencil sharpener is also a major consideration for them when making a purchase. Based on this, those skilled in the art often consider the shape of the pencil sharpener's outer casing and the design of additional decorative parts. It is known that, to facilitate the assembly of the sharpening mechanism and the shaping of the casing, the traditional approach is to manufacture the pencil sharpener's casing through injection molding or mold making. For example, Chinese Utility Model Patent Publication No. CN208914860U discloses a decorative part mounting structure and a pencil sharpener, in which the decorative part can be detachably installed on the plastic casing of the pencil sharpener, and the overall external shape of the pencil sharpener can be changed by replacing the decorative part.

[0005] However, since the shells of pencil sharpeners are made by injection molding or mold making, although there is a wide variety of product shapes, the cost of coloring or printing patterns on the plastic after it has hardened is relatively high. This means that while pencil sharpeners made of plastic shells are varied in shape, pencil sharpeners from the same manufacturer are basically rigid or identical in color or style design, thus failing to meet consumers' diverse aesthetic needs and increasingly higher demands for product quality.

[0006] Furthermore, for plastic shells, their production requires the masterbatch to be melted or plasticized, and then injected into the mold cavity at a certain pressure and rate using an injection molding machine. After cooling and solidification, the product is obtained. Therefore, there is room for improvement in manufacturing costs and time cycles.

[0007] Therefore, there is a technical need in the relevant technical field to improve existing pencil sharpeners to solve the above-mentioned shortcomings. Utility Model Content

[0008] Therefore, the objective of this invention is to provide a decorative pencil sharpener that overcomes the shortcomings of the prior art.

[0009] According to one aspect of the present invention, a decorative pencil sharpener is provided, comprising a pencil sharpening mechanism and a housing for forming a chip collection cavity located below the pencil sharpening mechanism, wherein the pencil sharpening mechanism comprises a body made of plastic material and a pencil sharpening portion comprising at least plastic material, wherein the housing is a stamped housing formed by stamping metal material, wherein the stamped housing has an outer peripheral wall conforming to the outer contour of the body of the pencil sharpening mechanism and a chip collection cavity enclosed by the outer peripheral wall, wherein the outer peripheral wall of the stamped housing is further stamped with a flange that forms a shape-fitting connection with the body, wherein the outermost side of the outer peripheral wall of the stamped housing is further provided with a pattern layer printed with thermosetting ink.

[0010] Unlike existing decorative pencil sharpeners, the main parts of this invention, which are directly visible to consumers, are all made of a stamped shell that can be metal-printed. When combined with the design of the stamped shell itself, the colors and patterns printed on it achieve a visual aesthetic that is impossible in existing pencil sharpeners. Furthermore, since the decorative pencil sharpener is assembled using a metal-printed stamped shell, this does not substantially increase the manufacturing process or material costs. Therefore, the decorative pencil sharpener of this invention possesses considerable economic and commercial value.

[0011] As a preferred aspect of this utility model, it further includes an adapter disposed between the pencil sharpening mechanism and the stamped housing, wherein the adapter includes: a main body portion conforming to the stamped housing; a receiving cavity enclosed by the main body portion for accommodating the pencil sharpening mechanism; a snap-fit ​​portion located on the outer peripheral wall of the main body portion, wherein the snap-fit ​​portion is designed to form an anti-rotation shape fit with the flange of the stamped housing; and an edge portion continuously arranged along the outer periphery of the main body portion, wherein the edge portion is designed to function as a stop portion during the pressing of the adapter into the stamped housing.

[0012] As a preferred aspect of the present invention, the adapter further includes a positioning part located at the uppermost side of the main body, and the pencil sharpening mechanism includes an anti-rotation part located on the outer side of the main body, wherein the positioning part of the adapter and the anti-rotation part of the main body of the pencil sharpening mechanism form a shape-fitting anti-rotation connection.

[0013] As a preferred aspect of the present invention, the main body of the pencil sharpening mechanism is designed as a hollow ring and the ring-shaped main body is provided with a notch that divides it into a pair of arms that can expand outward, wherein the pair of arms abut against the inner surface of the stamped housing to form an anti-rotation connection between the pencil sharpening mechanism and the stamped housing.

[0014] As a preferred aspect of the present invention, both the stamped housing and the adapter are designed to have non-rotationally symmetrical shapes, wherein the adapter is fitted into the stamped housing in a form-fitting anti-rotation manner.

[0015] As a preferred aspect of this utility model, the main body of the pencil sharpening mechanism and the adapter are designed as a one-piece structure integrally formed.

[0016] As a preferred aspect of the present invention, it also includes a top cover, wherein the top cover is designed as a thin sheet formed by stamping metal material, and wherein the outermost side of the top cover also has a pattern layer printed with thermosetting ink.

[0017] As a preferred aspect of this invention, the metal material is a thin steel plate.

[0018] As a preferred aspect of this utility model, the shape of the stamped housing can be designed as a non-rotationally symmetrical shape, a long racetrack shape, or a cylindrical can shape.

[0019] Other features and advantages of this invention will partly be apparent to those skilled in the art upon reading this application, and partly will be described below in conjunction with the accompanying drawings in the detailed description. Attached Figure Description

[0020] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings, wherein:

[0021] Figures 1A to 1E The views shown are perspective views of an embodiment of the pencil-sharpening mechanism of the first embodiment of the decorative pencil sharpener according to the present invention, presented from various angles.

[0022] Figures 2A to 2C The views shown from various perspectives depict the stamped housing of the first embodiment of the decorative pencil sharpener according to the present invention.

[0023] Figures 3A to 3CThe views shown from various perspectives depict the assembled pencil-sharpening mechanism and the stamped housing of the first embodiment of the decorative pencil sharpener according to the present invention.

[0024] Figures 4A to 4B The views shown from various perspectives depict the top cover of the first embodiment of the decorative pencil sharpener according to the present invention.

[0025] Figures 5A to 5C The views shown are perspective views of a first embodiment of a decorative pencil sharpener according to the present invention, with the pencil sharpener in an assembled state.

[0026] Figures 6A to 6E The views shown are perspective views of an embodiment of the pencil-sharpening mechanism of the second embodiment of the decorative pencil sharpener according to the present invention, presented from various angles.

[0027] Figures 7A to 7C The views shown from various perspectives depict the stamped housing of a second embodiment of the decorative pencil sharpener according to the present invention.

[0028] Figures 8A to 8C The views shown from various perspectives depict the top cover of a second embodiment of the decorative pencil sharpener according to the present invention.

[0029] Figures 9A to 9D The views shown from various perspectives illustrate a second embodiment of the decorative pencil sharpener according to the present invention, wherein the pencil sharpener is in an assembled state.

[0030] Figures 10A to 10D Perspective views of the adapter of the second embodiment of the decorative pencil sharpener according to the present invention are shown from various angles.

[0031] Figures 11A to 11D The views shown from various perspectives depict the assembled pencil sharpening mechanism and adapter according to a second embodiment of the decorative pencil sharpener of the present invention.

[0032] Figures 12A to 12D The views shown are perspective views of an embodiment of the pencil-sharpening mechanism of the third embodiment of the decorative pencil sharpener according to the present invention, presented from various angles.

[0033] Figures 13A to 13C The views shown from various perspectives depict the stamped housing of a third embodiment of the decorative pencil sharpener according to the present invention.

[0034] Figures 14A to 14C The views shown from various perspectives depict the assembled pencil-sharpening mechanism and the stamped housing of the third embodiment of the decorative pencil sharpener according to the present invention.

[0035] Figures 15A to 15E The views shown are perspective views of a third embodiment of the decorative pencil sharpener according to the present invention, with the pencil sharpener in an assembled state.

[0036] Figures 16A to 16D The views shown are perspective views of a fourth embodiment of the decorative pencil sharpener according to the present invention, with the pencil sharpener in an assembled state.

[0037] Figures 17A to 17C The views shown from various perspectives depict the assembled pencil sharpening mechanism and stamped housing of the fourth embodiment of the decorative pencil sharpener according to the present invention, with the top cover removed to better show the internal structure.

[0038] Figures 18A to 18C The views shown from various perspectives depict the adapter of the fourth embodiment of the decorative pencil sharpener according to the present invention.

[0039] Figures 19A to 19C The views shown from various perspectives illustrate a fifth embodiment of the decorative pencil sharpener according to the present invention, wherein the pencil sharpener is in an assembled state.

[0040] Figures 20A to 20D The views shown from various perspectives depict the assembled pencil-sharpening mechanism and stamped housing of a fifth embodiment of the decorative pencil sharpener according to the present invention, with the top cover removed to better show the internal structure.

[0041] Explanation of reference numerals in the attached figures:

[0042] 100. Pencil sharpening mechanism; 101. Main body; 101A. Notch; 102. Fastening part;

[0043] 102A. Side edge; 102B. Anti-rotation part; 103. Sharpening part; 103A. Pen holder cavity;

[0044] 103B. Blade; 200. Stamped housing; 201. Outer peripheral wall; 202. Flanged edge;

[0045] 203. Chip collection chamber; 204. Top cover; 205. Top cover cavity; 206. Pivot joint; 400. Adaptive parts;

[0046] 401. Main body; 401A. Storage cavity; 402. Edge.

[0047] 402A. Missing part; 403. Positioning part; 404. First locking part; 405. Second locking part; Detailed Implementation

[0048] The schematic scheme of the decorative pencil sharpener disclosed in this utility model is now described in detail with reference to the accompanying drawings. Although the drawings are provided to illustrate some embodiments of this utility model, the drawings are not necessarily drawn to the dimensions of the specific embodiments, and certain features may be enlarged, removed, or partially cut to better illustrate and explain the disclosure of this utility model. Some components in the drawings may be repositioned according to actual needs without affecting the technical effect. The phrase "in the drawings" or similar terms appearing in the specification do not necessarily refer to all drawings or examples.

[0049] Certain directional terms used in the description of the accompanying drawings below, such as “front,” “back,” “inner,” “outer,” “above,” “below,” and other directional terms, will be understood to have their normal meaning and refer to those directions as normally viewed in the accompanying drawings. Unless otherwise specified, the directional terms used in this specification are generally in accordance with the conventional directions understood by those skilled in the art.

[0050] The terms “first,” “first,” “second,” “second,” and similar terms used in this utility model do not indicate any order, quantity, or importance, but are used to distinguish one component from other components.

[0051] To provide a better understanding of the purpose, structure, features, and functions of this utility model, a detailed description of several embodiments is provided below.

[0052] First embodiment

[0053] First, combine Figures 1A to 1E , Figures 2A to 2C , Figures 3A to 3C , Figures 4A to 4B as well as Figures 5A to 5C To describe the first embodiment of the present invention, the decorative pencil sharpener in the first embodiment includes... Figures 1A to 1E The pencil sharpening mechanism shown in the image... Figures 2A to 2C The stamped housing shown in the figure and in Figures 4A to 4B The top cover is shown in the image. Furthermore, in... Figures 3A to 3C The views shown from various perspectives depict the assembled pencil-sharpening mechanism and stamped housing according to a first embodiment of the decorative pencil sharpener of the present invention, and in... Figures 5A to 5C The views shown are perspective views of a first embodiment of a decorative pencil sharpener according to the present invention, with the pencil sharpener in an assembled state.

[0054] like Figures 1A to 1EAs shown, the pencil sharpening mechanism 100 includes at least a body 101 made of injection-molded or thermoplastic material and a sharpening part 103 also preferably made of injection-molded or thermoplastic material, both of which are in an assembled state in these figures. Figure 1A and 1C As best illustrated, the body 101 is designed as a hollow triangular prism with a non-rotationally symmetric shape, for example, a generally equilateral triangular cross-section. Specifically, the body 101 includes a top surface and side circumferences extending downwards from the top surface along its outer periphery, wherein the side circumferences of the hollow triangular prism are rounded near the three vertices. To prevent the sharpening part 103 from rotating into the body 101, a receiving cavity for accommodating the sharpening part 103 is formed in a portion of the body 101 near the middle region. Figures 1A to 1E In this embodiment, the cavity has a generally rectangular insertion port located on the top surface of the main body 101, and a support portion extending downward from the main body 101 from the insertion port to support the pencil sharpening part 103.

[0055] Furthermore, such as Figures 1A to 1B as well as Figure 1E As shown, fastening portions 102, preferably claws, are preferably provided on opposite sides of the side periphery of the main body 101, for example in... Figure 1E Two fastening portions 102, preferably claws, are provided on the left and right sides of the body, wherein these fastening portions 102 are spaced apart from their adjacent peripheral portions to allow the fastening portions 102 to deform relative to the peripheral portions based on external forces. Further, an outwardly protruding side edge 102A is provided along the outer periphery of the remaining portion of the peripheral portion. Preferably, the body 101 is designed to be made of a transparent or light-transmitting injection-molded or thermoplastic material, so that elementary school students or consumers can observe the cutting process and chip removal of the pencil sharpener 103 located below it through the top surface of the body 101.

[0056] like Figures 1A to 1B as well as Figure 1DAs shown, the pencil sharpening unit 103 is designed with the following main structure: a base having a cone-shaped insert cavity 103A, and a groove for discharging shavings generated during sharpening, formed on the outer side of a predetermined portion of the insert cavity 103A. A sharpening blade 103B is fixedly arranged, for example by screwing, on the outer wall of the base adjacent to the groove. The cutting edge of the blade 103B is preferably designed to be located precisely at the groove. Thus, in use, for example, a primary school student simply inserts the end of the pen (e.g., but not limited to pencils or colored pencils) into the insert cavity 103A of the pencil sharpening unit 103, which is anti-rotatingly positioned on the top surface of the main body 101, and applies a certain force to rotate it relative to the blade 103B. The cutting is then performed by the cutting edge of the blade 103B adjacent to the groove. As a result, the end of the pen (e.g., but not limited to pencils or colored pencils) is gradually sharpened into a conical shape until the consumer's desired thickness is achieved.

[0057] Punching shell

[0058] exist Figures 2A to 2C The diagram illustrates a stamped housing according to a first embodiment. Unlike plastic housings made from injection-molded or thermoplastic materials in the prior art, the stamped housing here refers to a housing made from a thin steel sheet with a certain degree of toughness by stamping. Preferably, the surface of the thin steel sheet may also undergo surface treatment operations such as tin plating or chrome plating. As the most preferred embodiment, the aforementioned thin steel sheet may also be tinplate.

[0059] like Figures 2A to 2C As shown, the stamped housing 200 has an outer contour conforming to the body 101 of the pencil sharpening mechanism 100, i.e., it is also designed as a hollow triangular prism with a non-rotationally symmetric shape, for example, a generally equilateral triangular cross-section. The stamped housing 200 includes an outer peripheral wall 201 conforming to the outer contour of the body 101 and a chip collection cavity 203 enclosed by the outer peripheral wall 201 for insertion of the pencil sharpening mechanism 100. The chip collection cavity 203 is located directly below the pencil sharpening part 103 after the pencil sharpening mechanism 100 is inserted, allowing pencil shavings originating from the pencil sharpening part 103 to fall into and be stored in the chip collection cavity 203 under the force of gravity. Furthermore, the uppermost edge of the outer peripheral wall 201 is preferably designed to be flanged towards the chip collection cavity 203 to form a bottom recess for the fastening part 102 to form a shape fit, as will be described in detail below, and a top edge for the side edge 102A to abut against. Figures 2A to 2C As shown, the outer peripheral wall 201 of the stamped housing 200 is also rounded near the three vertices to ensure that its outer contour is conformable to the body 101 of the pencil sharpening mechanism 100, so as to form a non-rotational shape fit between the two.

[0060] The following describes a feasible forming method for this stamped housing.

[0061] Step 1) Cutting: Use a cutting machine to cut thin steel plates, for example, those that can be purchased externally, into the required specifications according to the size requirements.

[0062] Step 2) External Coating: Coating refers to applying a layer of paint to the surface of a thin steel sheet. This can include internal and external surface coatings. The internal surface coating mainly serves functions such as transparency, corrosion prevention, and protection. The external surface is mainly coated with a white paint used as a base coat for printing, facilitating subsequent printing of colored patterns. Feasible coating methods include using a coating machine employing a roller coating process.

[0063] Step 3) Drying: The coated thin steel sheet is positioned and fixed on a conveyor track, for example, it can enter a tunnel drying oven for drying. The temperature during the drying process is controlled between 130-160℃, and the drying time is about 20 minutes. The drying oven mainly consists of four parts: the oven body, the transmission mechanism, the heating device, and the heat circulation system. The heating system consists of a heating furnace (environmentally friendly furnace), air ducts, air plates, and a temperature control system. The heating furnace can use natural gas as fuel, for example. The tunnel drying oven can be divided into three zones according to temperature: the preheating zone, the heating zone, and the cooling zone. The first section after the coated thin steel sheet enters the oven is called the preheating zone, where the temperature rises. Next is the heating zone, which is the main area for drying ink and coating. The quality of drying depends on whether the oven temperature is consistently uniform during this stage. Then comes the cooling zone, where fans are used to quickly cool the coated thin steel sheet. Preferably, the heating time is generally 4-5 minutes, the cooling time is about 11 minutes, and the cooling time is about 3-4 minutes.

[0064] Step 4) Printing: After completing the inner coating and drying process, the coated thin steel plate is fed into the printing production line for printing. The printing process used in this project is thermosetting ink printing. Printing mainly involves printing various designed patterns onto the thin steel plate, which has already been coated with an outer surface coating, using a metal stamping machine. The plate is then dried in a drying oven. Drying is performed in an oven, with the heating procedure being essentially the same as that used for the oven body and the oven after coating. Preferably, the heating temperature can be 80-100℃.

[0065] Step 5) Varnishing: To ensure the stamped housing 200 has high gloss and wear resistance, the printed surface of the thin steel sheet is varnished. Varnishing can be performed on the coating production line. It mainly includes the application and drying of water-based varnish, and the coating and drying processes are basically the same as those on the coating production line. After varnishing, the gloss, hardness, wear resistance, and corrosion resistance of the printed pattern on the surface can be increased.

[0066] exist Figures 3A to 3CThe views shown from various perspectives depict the assembled pencil sharpening mechanism 100 and the stamped housing 200 of the first embodiment of the decorative pencil sharpener according to the present invention.

[0067] like Figures 3A to 3C As shown, the stamped housing 200, as described above, is first provided and placed below. Then, the assembled pencil sharpening mechanism 100 (which includes a main body 101 and a sharpening portion 103 located therein) is forcefully pressed down from above the stamped housing 200. During the pressing down, the fastening portion 102, preferably a claw, located on the side periphery of the main body 101, first deforms and retracts inward to pass over the uppermost flange 202 of the stamped housing 200, and after passing over the flange 202, spontaneously forms a reliable shape fit with the flange 202 with a predetermined clamping force due to its own elastic properties. At this time, the side edge 102A located on the side periphery of the main body 101 reliably abuts against the uppermost surface of the flange 202 to form a stop to prevent excessive pressing down of the pencil sharpening mechanism 100 and simultaneously increase the contact area between the main body 101 and the stamped housing 200. Thus, the assembled... Figures 3A to 3C The main parts of the decorative pencil sharpener are shown in the image.

[0068] Those skilled in the art will understand that although the pencil sharpening mechanism 100 and the stamped housing 200 are separate components made of plastic and metal respectively (rather than a single piece made of plastic or a fixed connection formed by threaded parts or snap-fits made of plastic as in the prior art), the pencil sharpening mechanism 100 can be housed in a non-rotationally symmetrical manner within the stamped housing 200 due to the static friction between the fastening part 102 and the side edge 102A and the stamped housing 200. This allows the consumer to hold the stamped housing 200 with one hand while using the decorative pencil sharpener, and to operate the pencil to be sharpened by inserting it into the non-rotationally housed pencil sharpening mechanism 100 within the stamped housing 200 with the other hand, without affecting the non-rotational fit between the pencil sharpening mechanism 100 and the stamped housing 200. Figures 3A to 3C It can be determined that, according to the first embodiment of the present invention, only a portion of the pencil sharpening mechanism 100 located above the stamped housing 200 is exposed to the consumer.

[0069] Based on this, since the main part of the decorative pencil sharpener of this invention, which is directly visible to consumers, is made of a stamped shell 200 that can be printed with metallic colors (rather than a thermoplastic material that cannot be colored later or is difficult to print patterns on), it significantly increases the designer's freedom to create or beautify the outer peripheral wall 201 of the stamped shell 200. That is, various colors and patterns can be printed on various parts of the outer peripheral wall 201 with virtually no restrictions. If combined with the shape design of the stamped shell 200 itself (such as, but not limited to, small animals, vehicles, or cartoon characters), the colors and patterns printed on the stamped shell 200 can achieve a visual aesthetic that is impossible to achieve in existing pencil sharpeners.

[0070] Furthermore, since the decorative pencil sharpener is assembled using a stamped housing 200 with a metal color print, this does not substantially increase the process or material costs in the pencil sharpener manufacturing process. Considering the economies of scale brought about by large-scale stamping, the decorative pencil sharpener according to this utility model has considerable economic and commercial value.

[0071] Preferably, in order to ensure that all parts of the decorative pencil sharpener of this invention that are directly visible to the consumer are made of a stamped shell that can be printed with metallic colors, an additional [feature / feature] can also be added. Figures 4A to 4B The decorative pencil sharpener's top cover 204 is shown from various perspectives. The top cover 204 is also a shell made of a metal material with a certain degree of toughness by means of stamping, and its forming method can be the same as that of the stamped shell 200, thereby forming a top cover cavity 205 in the top cover 204 that conforms to the upper exposed area of ​​the pencil sharpening mechanism 100.

[0072] The result is that, by providing in Figures 4A to 4B The decorative pencil sharpener's top cover 204, shown from various angles, allows the consumer to directly observe all parts of the decorative pencil sharpener made of a stamped shell suitable for metallic color printing when the top cover 204 is in use. Figures 5A to 5C Views from various perspectives are shown, in which the first embodiment of the decorative pencil sharpener is in an assembled state.

[0073] like Figures 5A to 5C As shown, in its assembled state, when a consumer purchases or does not use the pencil sharpener, the entire area that can be directly observed is composed of parts such as the stamped housing 200 and the top cover 204, both of which can be metal-printed. Therefore, the first embodiment of this utility model can achieve a visual aesthetic that is impossible to achieve in existing pencil sharpeners.

[0074] Second embodiment

[0075] Next, combine Figures 6A to 6E ,Figures 7A to 7C , Figures 8A to 8C , Figures 9A to 9D , Figures 10A to 10C as well as Figures 11A to 11D The second embodiment according to the present invention will be described, wherein the reference numerals and component names used in the first embodiment are equally applicable in the second embodiment.

[0076] like Figures 6A to 6E As shown, the pencil sharpening mechanism 100 in the second embodiment includes at least a main body 101 made of injection-molded or thermoplastic material and a pencil sharpening part 103 also preferably made of injection-molded or thermoplastic material, both of which are assembled in these figures. Unlike the first embodiment, in the second embodiment, the main body 101 is designed as a hollow cylinder with a rotationally symmetrical shape, for example, a generally circular cross-section, and also includes paired anti-rotation portions 102B within the main body 101.

[0077] Similarly, as Figures 7A to 7C The diagram shows a stamped housing 200 according to a second embodiment. Unlike plastic housings made by injection molding or thermoplastic materials in the prior art, the stamped housing here refers to a housing made of a metal material with a certain degree of toughness by stamping. Unlike the first embodiment, in the second embodiment, the stamped housing 200 is designed as a hollow cylinder with a rotationally symmetrical shape, for example, a generally circular cross-section.

[0078] Given that both the pencil sharpening mechanism 100 and the stamped housing 200 in the second embodiment are designed with rotational symmetry and a circular cross-section, a further component is added in the second embodiment. Figures 10A to 10C The adapter shown in the figure ensures that a reliable anti-rotation shape fit is formed between the pencil sharpening mechanism 100 and the stamped housing 200 in the second embodiment.

[0079] Adapter

[0080] exist Figures 10A to 10D The diagram illustrates an adapter 400 according to a second embodiment of the present invention. The adapter 400 is designed as a hollow cylindrical body 401 with a rotationally symmetrical shape and a generally circular cross-section, and a receiving cavity 401A enclosed by the body 401, which subsequently accommodates a pencil sharpening mechanism 100. The diameter of the receiving cavity 401A is slightly smaller than the inner diameter of the mating stamped housing 200. Here, the adapter 400 may, for example, be made of the same injection-molded or thermoplastic material as the pencil sharpening mechanism 100.

[0081] like Figure 10AAs shown, a second engaging portion 405 is symmetrically arranged on the lower outer peripheral wall of the main body 401, which subsequently forms an anti-rotation shape with the flange 202 of the stamping housing 200. This allows the adapter 400 to be reliably housed within the cavity of the stamping housing 200 in an anti-rotation manner. Preferably, an edge portion 402 is continuously arranged along the outer periphery of the main body 401 above the second engaging portion 405. This edge portion serves as a stop to prevent the adapter 400 from being excessively pressed down when it is pressed into the stamping housing 200, while simultaneously increasing the contact area between the adapter 400 and the stamping housing 200.

[0082] To achieve anti-rotation engagement between the pencil sharpening mechanism 100 and the adapter 400, positioning portions 403 are symmetrically arranged at the uppermost part of the main body 401. These positioning portions 403 are designed as inwardly recessed openings to form an anti-rotation connection with the paired anti-rotation portions 102B in the main body 101 described above. Of course, those skilled in the art will recognize that it is also feasible to design the positioning portions 403 in the adapter 400 as protruding and the paired anti-rotation portions 102B in the main body 101 as concave.

[0083] exist Figures 11A to 11D The views shown from various perspectives depict the assembled stamped housing 200, adapter 400, and pencil sharpening mechanism 100 of a second embodiment of the decorative pencil sharpener according to the present invention.

[0084] like Figures 11A to 11D As shown, the stamped housing 200, as described above, is first provided and placed below. Subsequently, in... Figures 10A to 10D The diagram illustrates how, according to a second embodiment of the present invention, the adapter 400 is forcefully pressed down from above the stamping housing 200. During this pressing down, the second engaging portion 405 of the main body portion 401 of the adapter 400 first deforms and retracts inward to pass over the uppermost flange 202 of the stamping housing 200. After passing over the flange 202, due to its own elastic properties, it spontaneously forms a reliable shape fit with the flange 202 with a predetermined clamping force. At this time, the edge portions 402 continuously arranged on the main body portion 401 reliably abut against the uppermost surface of the flange 202 to form a stop portion that prevents the adapter 400 from being excessively pressed down, while simultaneously increasing the contact area between the adapter 400 and the stamping housing 200.

[0085] Next, the assembled pencil sharpening mechanism 100 (which includes a main body 101 and a pencil sharpening part 103 located therein) is positioned above the adapter 400 with its anti-rotation part 102B aligned with the positioning part 403 of the adapter 400, for example, see [reference needed]. Figure 11A The pencil sharpening mechanism 100 is then connected to the adapter 400 using an anti-rotation fit. This completes the assembled assembly.Figures 9A to 9D The main part of the second embodiment of the decorative pencil sharpener is shown in the image. From... Figures 9A to 9D It can be determined that, according to the second embodiment of the present invention, only a portion of the pencil sharpening mechanism 100 located above the stamped housing 200 is exposed to the consumer.

[0086] Based on this, since the main part of the decorative pencil sharpener of this invention, which is directly visible to consumers, is made of a stamped shell 200 that can be printed with metallic colors (rather than a thermoplastic material that cannot be colored later or is difficult to print patterns on), it significantly increases the designer's freedom to create or beautify the outer peripheral wall 201 of the stamped shell 200. That is, various colors and patterns can be printed on various parts of the outer peripheral wall 201 with virtually no restrictions. If combined with the shape design of the stamped shell 200 itself (such as, but not limited to, small animals, vehicles, or cartoon characters), the colors and patterns printed on the stamped shell 200 can achieve a visual aesthetic that is impossible to achieve in existing pencil sharpeners.

[0087] Preferably, in order to ensure that all parts of the decorative pencil sharpener of this invention that are directly visible to the consumer are made of a stamped shell that can be printed with metallic colors, an additional [feature / feature] can also be added. Figures 8A to 8C The decorative pencil sharpener's top cover 204 is shown from various perspectives. This top cover 204 is also a shell made of a metal material with a certain degree of toughness by stamping, and its forming method can be the same as that of the stamped shell 200. This results in a top cover cavity 205 formed within the top cover 204, conforming to the upper exposed area of ​​the pencil sharpening mechanism 100. Correspondingly, a first snap-fit ​​portion 404 is added to the upper part of the adapter 400 for mating connection.

[0088] As a result, by means of the top cover 204, when using the top cover 204, all parts of the decorative pencil sharpener of this utility model that are directly visible to the consumer are made of a stamped shell that can be metal-printed. Figures 9A to 9D Views from various perspectives are shown, in which the second embodiment of the decorative pencil sharpener is in an assembled state.

[0089] Third embodiment

[0090] Next, combine Figures 12A to 12D , Figures 13A to 13C , Figures 14A to 14C as well as Figures 15A to 15E The third embodiment according to the present invention will be described, wherein the reference numerals and component names used in the first embodiment are equally applicable in the third embodiment.

[0091] like Figures 12A to 12DAs shown, the pencil sharpening mechanism 100 in the third embodiment includes at least a body 101 made of injection-molded or thermoplastic material and a pencil sharpening part 103 also preferably made of injection-molded or thermoplastic material, both of which are in an assembled state in these figures. Unlike the first embodiment, in the third embodiment, the body 101 is designed as a hollow ring with a rotationally symmetrical shape, for example, a generally circular cross-section, and has a notch 101A dividing it into a pair of outwardly expandable arms. By means of this notch 101A, the generally ring-shaped body 101 can initially retract under pressure and, after the external force is removed, recover to its original size and shape by means of the resilience of the material of the body 101.

[0092] Similarly, as Figures 13A to 13C The diagram shows a stamped housing 200 according to a third embodiment. Unlike plastic housings made by injection molding or thermoplastic materials in the prior art, the stamped housing here refers to a housing made of a metal material with a certain degree of toughness by stamping. Unlike the first embodiment, in the third embodiment, the stamped housing 200 is designed as a hollow cylinder with a rotationally symmetrical shape, for example, a generally circular cross-section, and specifically as a can-shaped body with a smaller insertion opening and a larger can body. Preferably, the inner diameter of the smaller insertion opening is smaller than the outer diameter of the generally annular body 101.

[0093] exist Figures 14A to 14C The views shown from various perspectives depict the assembled pencil sharpening mechanism 100 and the stamped housing 200 of the third embodiment of the decorative pencil sharpener according to the present invention.

[0094] like Figures 14A to 14C As shown, the stamped housing 200 described above is first provided and placed below. Then, the assembled pencil sharpening mechanism 100 (which includes a main body 101 and a sharpening portion 103 located therein) is forcefully pressed down from above the stamped housing 200. During the pressing, a pair of arms of the main body 101, formed by means of a notch 101A that can expand outwards, first deform inwards to pass over the uppermost flange 202 of the stamped housing 200, and after passing over the flange 202, spontaneously form a reliable shape fit with the flange 202 with a predetermined clamping force due to their own elastic properties. At this time, the pair of arms of the main body 101, after expanding outwards, reliably abut against the innermost surface of the flange 202. Thus, the assembled pencil sharpening mechanism 100 is formed. Figures 14A to 14C The main parts of the decorative pencil sharpener are shown in the image.

[0095] Preferably, in order to ensure that all parts of the decorative pencil sharpener of this invention that are directly visible to the consumer are made of a stamped shell that can be printed with metallic colors, an additional [feature / feature] can also be added.Figures 15A to 15E The decorative pencil sharpener's top cover 204 is shown from various perspectives. The top cover 204 is also a shell made of a metal material with a certain degree of toughness by means of stamping, and its forming method can be the same as that of the stamped shell 200.

[0096] The result is that, by providing in Figures 15A to 15E The decorative pencil sharpener's top cover 204, shown from various angles, allows the consumer to directly observe all parts of the decorative pencil sharpener made of a stamped shell suitable for metallic color printing when the top cover 204 is in use. Figures 15A to 15E Views from various perspectives are shown, in which the first embodiment of the decorative pencil sharpener is in an assembled state.

[0097] like Figures 15A to 15E As shown, in its assembled state, when a consumer purchases or does not use the pencil sharpener, the entire area that can be directly observed is composed of parts such as the stamped housing 200 and the top cover 204, both of which can be metal-printed. Therefore, the third embodiment of this utility model can also achieve a visual aesthetic that is impossible to achieve in existing pencil sharpeners.

[0098] Fourth embodiment

[0099] The following text will combine Figures 16A to 16D , Figures 17A to 17C as well as Figures 18A to 18C The fourth embodiment of the present invention will be described below, and the reference numerals and component names used in the second embodiment are equally applicable in the fourth embodiment.

[0100] like Figures 18A to 18C As shown, the decorative pencil sharpener in the fourth embodiment includes a lowermost stamped housing 201 and an adapter 400 that fits within the stamped housing 201 in an anti-rotation shape. Here, the stamped housing 201 is formed into an elongated racetrack shape, mimicking half of a vehicle, preferably a car. Of course, those skilled in the art will also conceive of using, for example, a locomotive or a truck. Corresponding to the elongated racetrack shape of the stamped housing 201, the adapter 400 is also designed in an elongated racetrack shape; therefore, both are non-rotationally symmetric shapes with self-anti-rotation characteristics.

[0101] Here, the adapter 400 is designed to have a hollow main body 401 that is generally elongated racetrack-shaped, and a receiving cavity 401A enclosed by the main body 401, which subsequently accommodates the pencil sharpening mechanism 100. The outer contour of the receiving cavity 401A is slightly smaller than the inner contour of the mating stamped housing 200. Here, the adapter 400 may, for example, be made of the same injection-molded or thermoplastic material as the pencil sharpening mechanism 100. Preferably, as...Figure 18A and 18B As shown, an edge portion 402 is continuously provided along the outer periphery of the main body portion 401 of the adapter 400. It can be used as a stop portion to prevent the adapter 400 from being pressed down too much when the adapter 400 is pressed into the stamping housing 200, and at the same time increase the contact area between the adapter 400 and the stamping housing 200.

[0102] To achieve anti-rotation engagement between the pencil sharpening mechanism 100 and the adapter 400, a recess 402A is provided in the center of the main body 401. This recess 402A is designed as an inwardly recessed opening to form an anti-rotation connection with the corresponding anti-rotation portion 102B in the main body 101 described above. Of course, those skilled in the art will realize that it is also feasible to design the recess 402A in the adapter 400 as protruding and the paired anti-rotation portions 102B in the main body 101 as concave.

[0103] exist Figures 17A to 17C The views shown from various perspectives depict the assembled stamped housing 200, adapter 400, and sharpening mechanism 100 of the fourth embodiment of the decorative pencil sharpener according to the present invention.

[0104] like Figures 17A to 17C As shown, the stamped housing 200, as described above, is first provided and placed below. Subsequently, in... Figures 18A to 18C The diagram shows that, according to the fourth embodiment of the present invention, the adapter 400 is pressed down forcefully from above the stamping housing 200. At this time, the edge portion 402 continuously arranged on the main body portion 401 reliably abuts against the uppermost surface of the flange 202 to form a stop portion to prevent the adapter 400 from being pressed down excessively and at the same time increase the contact area between the adapter 400 and the stamping housing 200.

[0105] Next, the assembled pencil sharpening mechanism 100 (which includes a main body 101 and a pencil sharpening part 103 located therein) is positioned above the adapter 400, with its anti-rotation part 102B aligned with the missing part 402A of the adapter 400, for example, see [reference needed]. Figure 17C The pencil sharpening mechanism 100 is then connected to the adapter 400 using an anti-rotation fit. This completes the assembled assembly. Figures 17A to 17C The main parts of the fourth embodiment of the decorative pencil sharpener are shown in the image. From Figures 17A to 17C It can be determined that, according to the fourth embodiment of the present invention, only a portion of the pencil sharpening mechanism 100 located above the stamped housing 200 is exposed to the consumer.

[0106] Preferably, in order to ensure that all parts of the decorative pencil sharpener of this invention that are directly visible to the consumer are made of a stamped shell that can be printed with metallic colors, an additional [feature / feature] can also be added.Figures 16A to 16D The decorative pencil sharpener's top cover 204 is shown from various perspectives. This top cover 204 is also a shell made of a relatively flexible metal material by stamping, and its forming method can be the same as that of the stamped shell 200. Thus, a cover cavity 205 is formed in the top cover 204, conforming to the upper exposed area of ​​the pencil sharpening mechanism 100. Here, the top cover 204 and the stamped shell 200 are pivotally connected together by a pivot 206, for example, a metal wire, and together form a generally car-like shape.

[0107] As a result, by means of the top cover 204, when using the top cover 204, all parts of the decorative pencil sharpener of this utility model that are directly visible to the consumer are made of a stamped shell that can be metal-printed. Figures 16A to 16D Views from various perspectives are shown, in which the fourth embodiment of the decorative pencil sharpener is in an assembled state.

[0108] Fifth embodiment

[0109] The following text will combine Figures 19A to 19C as well as Figures 20A to 20D The fifth embodiment of the present invention will be described herein, wherein the reference numerals and component names used in the fourth embodiment are equally applicable in the fifth embodiment.

[0110] like Figures 19A to 19C As shown, the decorative pencil sharpener in the fifth embodiment includes a lowermost stamped housing 201 and an adapter 400 that fits within the stamped housing 201 in an anti-rotation shape. Here, the stamped housing 201 is formed into an apple-like shape, mimicking half of a cartoon character, preferably a unicorn. Of course, those skilled in the art can also conceive of using themes such as a giant frog or a clown. Corresponding to the apple-like shape of the stamped housing 201, the adapter 400 is also designed in an apple-like shape; therefore, both are non-rotationally symmetrical shapes with self-anti-rotation properties.

[0111] Here, the adapter 400 is designed to have a hollow main body 401 that is generally elongated racetrack-shaped, and a receiving cavity 401A enclosed by the main body 401, which subsequently accommodates the pencil sharpening mechanism 100. The outer contour of the receiving cavity 401A is slightly smaller than the inner contour of the mating stamped housing 200. Here, the adapter 400 may, for example, be made of the same injection-molded or thermoplastic material as the pencil sharpening mechanism 100. Preferably, as... Figures 19A to 19CAs shown, an edge portion 402 is continuously provided along the outer periphery of the main body portion 401 of the adapter 400. It can be used as a stop portion to prevent the adapter 400 from being pressed down too much when the adapter 400 is pressed into the stamping housing 200, and at the same time increase the contact area between the adapter 400 and the stamping housing 200.

[0112] In this embodiment, the main body 101 and the adapter 400 are preferably formed as a one-piece design.

[0113] exist Figures 20A to 20D The views shown from various perspectives depict the assembled stamped housing 200, adapter 400, and pencil sharpening mechanism 100 of the fifth embodiment of the decorative pencil sharpener according to the present invention.

[0114] like Figures 20A to 20D As shown, the stamped housing 200, as described above, is first provided and placed below. Subsequently, in... Figures 20A to 20D The diagram shows that, according to the fifth embodiment of the present invention, the adapter 400 is forcefully pressed down from above the stamping housing 200. At this time, the edge portions 402 continuously arranged on the main body 401 reliably abut against the uppermost surface of the flange 202 to form a stop portion preventing excessive pressing of the adapter 400 and simultaneously increasing the contact area between the adapter 400 and the stamping housing 200. Since the main body 101 and the adapter 400 are integrally molded as a single piece, the above assembly process also simultaneously achieves the anti-rotation installation of the pencil sharpening mechanism 100. Thus, an assembled... Figures 20A to 20D The main parts of the fifth embodiment of the decorative pencil sharpener are shown in the image. From Figures 20A to 20D It can be determined that, according to the fifth embodiment of the present invention, only a portion of the pencil sharpening mechanism 100 located above the stamped housing 200 is exposed to the consumer.

[0115] Preferably, in order to ensure that all parts of the decorative pencil sharpener of this invention that are directly visible to the consumer are made of a stamped shell that can be printed with metallic colors, an additional [feature / feature] can also be added. Figures 19A to 19C The decorative pencil sharpener's top cover 204 is shown from various perspectives. This top cover 204 is also a shell made of a relatively flexible metal material by stamping, and its forming method can be the same as that of the stamped shell 200. Thus, a cover cavity 205 is formed in the top cover 204, conforming to the upper exposed area of ​​the pencil sharpening mechanism 100. Here, the top cover 204 and the stamped shell 200 are pivotally connected by a pivot joint, for example, a metal wire, and together form a generally unicorn-themed shape.

[0116] As a result, by means of the top cover 204, when using the top cover 204, all parts of the decorative pencil sharpener of this utility model that are directly visible to the consumer are made of a stamped shell that can be metal-printed. Figures 19A to 19C Views from various perspectives are shown, in which the fifth embodiment of the decorative pencil sharpener is in an assembled state.

[0117] As can be seen from the above, in various embodiments of the decorative pencil sharpener of this utility model, the main parts that consumers can directly observe are all made of a stamped shell that can be printed with metallic colors (rather than thermoplastic materials that cannot be colored later or are difficult to print patterns on). On the one hand, this significantly improves the designer's freedom to create or beautify the outer wall of the stamped shell, that is, various colors and patterns can be printed on various parts of the outer wall with virtually no restrictions. When combined with the shape design of the stamped shell itself (such as, but not limited to, small animals, vehicles, or cartoon characters), the colors and patterns printed on the stamped shell can achieve a visual aesthetic that cannot be achieved in existing pencil sharpeners.

[0118] Furthermore, since the decorative pencil sharpener is assembled using a stamped casing with metal color printing, this does not substantially increase the process or material costs in the pencil sharpener manufacturing process. Considering the economies of scale brought about by large-scale stamping, the decorative pencil sharpener according to this utility model has considerable economic and commercial value.

[0119] It should be understood that although this specification describes various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A decorative pencil sharpener, comprising a sharpening mechanism and a housing for forming a chip collection cavity located below the sharpening mechanism, wherein the sharpening mechanism comprises a body made of plastic material and a sharpening portion comprising at least plastic material, characterized in that: The housing is a stamped housing formed by stamping metal material. The stamped housing has an outer peripheral wall conforming to the outer contour of the main body of the pencil sharpening mechanism and a chip collection cavity enclosed by the outer peripheral wall. The outer peripheral wall of the stamped housing is also stamped with a flange that forms a shape fit with the main body. The outermost side of the outer peripheral wall of the stamped housing is also covered with a pattern layer printed with thermosetting ink.

2. The decorative pencil sharpener as described in claim 1, characterized in that, It also includes an adapter disposed between the pencil sharpening mechanism and the stamping housing, wherein the adapter includes: The main body portion conforms to the shape of the stamped housing; A storage cavity enclosed by the main body for housing the pencil sharpening mechanism; A snap-fit ​​portion located on the outer peripheral wall of the main body, wherein the snap-fit ​​portion is designed to form an anti-rotation shape fit with the flange of the stamped housing; and An edge portion is continuously arranged along the outer periphery of the main body, wherein the edge portion is designed to serve as a stop portion during the pressing of the adapter into the stamped housing.

3. The decorative pencil sharpener as described in claim 2, characterized in that, The adapter also includes a positioning part located at the uppermost side of the main body, and the pencil sharpening mechanism includes an anti-rotation part located on the outer side of the main body, wherein the positioning part of the adapter and the anti-rotation part of the main body of the pencil sharpening mechanism form a shape-fitting anti-rotation connection.

4. The decorative pencil sharpener as described in claim 1, characterized in that, The main body of the pencil sharpening mechanism is designed as a hollow ring, and the ring-shaped main body has a notch that divides it into a pair of outwardly expanding arms, wherein the pair of arms abut against the inner surface of the stamped housing to form an anti-rotation connection between the pencil sharpening mechanism and the stamped housing.

5. The decorative pencil sharpener as described in claim 2, characterized in that, The stamped housing and the adapter are both designed to have a non-rotationally symmetrical shape, wherein the adapter is fitted into the stamped housing in a form-fitting anti-rotation manner.

6. The decorative pencil sharpener as described in claim 5, characterized in that, The main body of the pencil sharpening mechanism and the adapter are designed as a one-piece structure.

7. The decorative pencil sharpener as described in any one of claims 1 to 6, characterized in that, It also includes a top cover, wherein the top cover is designed as a thin sheet formed by stamping metal material, and wherein the outermost part of the top cover also has a pattern layer printed with thermosetting ink.

8. The decorative pencil sharpener as described in any one of claims 1 to 6, characterized in that, The metal material mentioned therein is a thin steel plate.

9. The decorative pencil sharpener as described in any one of claims 1 to 6, characterized in that, The shape of the stamped housing can be designed as a non-rotationally symmetrical shape, a long racetrack shape, or a cylindrical can.

Images