WO2009146601A1 - Automatic lead sharpener for propelling pencil - Google Patents

Automatic lead sharpener for propelling pencil Download PDF

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Publication number
WO2009146601A1
WO2009146601A1 PCT/CN2009/000613 CN2009000613W WO2009146601A1 WO 2009146601 A1 WO2009146601 A1 WO 2009146601A1 CN 2009000613 W CN2009000613 W CN 2009000613W WO 2009146601 A1 WO2009146601 A1 WO 2009146601A1
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WO
WIPO (PCT)
Prior art keywords
hob
pencil
axis
gear
automatic
Prior art date
Application number
PCT/CN2009/000613
Other languages
French (fr)
Chinese (zh)
Inventor
漆和芝
Original Assignee
Qi Hezhi
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qi Hezhi filed Critical Qi Hezhi
Publication of WO2009146601A1 publication Critical patent/WO2009146601A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L23/00—Sharpeners for pencils or leads
    • B43L23/02—Sharpeners for pencils or leads with gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L23/00—Sharpeners for pencils or leads
    • B43L23/008—Sharpeners for pencils or leads with rotating cutting bodies

Definitions

  • the present invention relates to a learning tool, and more particularly to an active pencil lead-core automatic reeling blade.
  • An object of the present invention is to provide a movable pencil lead-core automatic reeling blade in view of the deficiencies in the prior art described above.
  • the reeling knife can automatically roll the active pencil lead core, which is easy to use and reliable, has a simple structure, is not easy to break the lead core, and has high cutting quality.
  • the technical solution of the present invention comprises: a body, a pencil guiding hole provided on the body, a hob holder connected to the body, a hob provided with a hob gear connected to the hob holder, and the hob gear is sleeved There is an annular internal gear, and the hob is connected to an automatic driving device.
  • the automatic driving device comprises a driving motor and a corresponding electric control switch, a transmission gear connected to the hob holder, and a worm gear mechanism composed of a worm, a worm wheel shaft and a worm gear combination body respectively connected to the transmission gear and the driving motor shaft .
  • the electronically controlled switch is a position switch disposed on the pencil guide hole.
  • the position switch includes a guide tube having a retaining ring connected to the pencil guide hole in parallel at both ends thereof, and a contact rod disposed in the guide tube and supported on the protruding ring is disposed on the contact rod Springs, and corresponding moving and static contacts.
  • the edge of the hob blade is parallel to the axis of the hob, and the axis of the hob is inclined to the hob of the hob
  • the axis is at an angle.
  • the knives edge is inclined at an angle to the hob axis, the hob axis being parallel to the turret axis.
  • a measuring hole is disposed on the body.
  • the movable pencil lead core reeling blade of the invention is convenient and reliable to use and has a simple structure. It is more effective for active pencils with lead cores above 0.7 to 1.0. Since the direction of the blade edge always points to the tangential direction of the lead core, the cutting of the lead core is different from the grinding method of the general pencil sharpener. In particular, with automatic drive coiling, the amount of feed and the strength of the cutting are uniform, so the cutting effect is good, and it is not easy to break the lead core during the cutting. At the same time, since the lead-core test hole is provided, it is possible to avoid the waste lead core by performing the coiling according to the quantitative length. ⁇
  • FIG. 1 is a schematic structural diagram of an embodiment of the present invention.
  • Fig. 2 is a schematic view showing the principle structure of a hob and a hob according to another embodiment of the present invention.
  • the worm 24 is mounted on the shaft of the drive motor 25 to intermesh with the worm wheel on the worm gear assembly 22'.
  • the worm gear assembly 22 is fixed to the main body 4 via a worm shaft 23, and the gears of the worm gear assembly 22 mesh with the transmission gear 20 fixed to the hob shaft 15 of the hob 5.
  • the main body is composed of a main body 4 and a cover plate 11.
  • the hob holder 5 is movably connected to the main body 4 via a hob shaft 15, the cutting edge 26 of the hob 18 is parallel to the reel shaft 17, and the hob 18 is rolled by the hob shaft 17.
  • the axis of the knives 18 is movably connected to the turret frame at an angle to the axis of the turret frame, and the hob gear 19 fixed to the hob shaft 17 coaxially with the hob shaft 17 is fixed to the main body 4.
  • the inner ring gears 3 mesh with each other.
  • the pencil guide hole 16 is coaxial with the hob holder 5 and corresponds to the hob 18 fixed to the cover plate 11, the size and shape of the pencil guide hole 16 and the shape and size of the portion of the movable pencil body 13 inserted into the pencil guide hole 16.
  • One end of the guide tube 28 of the position switch is fixed to a side wall of the pencil guide hole 16 and connected to the pencil guide hole 16 in parallel; the anti-off ring on the guide tube 28 at the end of the pencil guide hole 16 is fixed on the inner wall of the guide tube 28.
  • the anti-detachment ring 2 of the anti-detachment ring 2 is a plug-type anti-drop ring 8 threadedly connected to the guide tube 28, and the outer wall is provided with a spring on the contact rod 27 supporting the convex ring 10
  • the exposed portion corresponding to the anode copper sheet 6 is disposed in the guide tube 28 and extends beyond the ends of the guide tube 28.
  • the static contact piece 7 and the movable contact piece 6 are mounted on the main body 4 corresponding to the contact bar 27.
  • the central axis of the core 14 rotates; and the hob gear 19 in the turret 5 meshes with the ring-shaped internal gear 3, and the hob gear 19 and the roller are driven while the hob 5 rotates around the central axis of the lead 14.
  • the knife 18 rotates.
  • the rotating cutter 18 starts to cut the lead core 14; when the inclined surface of the tip of the movable pencil 13 contacts the inclined surface in the movable pencil guide hole 16, the lead core 14 has been cut and dialed out
  • the movable pencil 1 3 the contact lever 27 of the position switch is reset by the spring 9, the movable and static pieces 6, 7 are separated, and the drive motor 25 stops rotating to complete the winding.
  • the edge of the hob blade 26 is inclined at the centerline angle of the hob 5 to determine the taper to be cut by the lead.
  • a lead core measuring hole 12 is provided on the cover plate 11 to measure the length and size of the lead core, and the length of the rolled lead core is the effective length of the hob cutting edge.
  • the blade edge 26 of the hob 18 is inclined at an angle to the axis of the hob shaft 17, and the axis and roll of both the hob shaft 17 and the hob gear 19 are rolled.
  • the axes of the tool holder shafts 15 are parallel to be eccentric to the turret shaft 15 - the distance is connected to the turret 5 '.

Abstract

An automatic lead sharpener for propelling pencil, which is convenient to use and simple in structure, comprises a pencil guide hole (16) and a hob frame (5) provided with a hob (18) and a hob gear (19). Said hob gear meshes with an annular inner gear (3). Said hob frame is connected to an electric drive unit and a corresponding position switch.

Description

活动铅笔铅芯自动卷削刀 技术领域本发明涉及一种学习用具， 特别是涉及一种活动铅笔铅芯自动 卷削刀。  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a learning tool, and more particularly to an active pencil lead-core automatic reeling blade.
背景技术 随着人们对环境的不断重视， 各种各样的环保铅笔应运而生。 如活动铅笔， 既环保又方便。但活动铅笔铅芯太细书写易断， 而铅芯过粗则切 削麻烦， 人工削切削不方便且易断芯， 而卷笔刀又不很适用于活动铅笔， 特别 是人工卷笔刀， 由于用力不均衡， 卷削时更易折断铅芯。 因此， 活动铅笔的使 用由于没有较好的削铅芯工具而难以广泛使用。  Background Art With the constant attention to the environment, various environmentally friendly pencils have emerged. Such as the activity pencil, it is environmentally friendly and convenient. However, the active pencil lead is too thin to be easy to break, and the lead is too thick to cut, the manual cutting is inconvenient and easy to break the core, and the pencil sharpener is not very suitable for the active pencil, especially the manual pencil sharpener, because Unbalanced force, it is easier to break the lead core during rolling. Therefore, the use of movable pencils is difficult to use widely because there is no good lead-cutting tool.
发明内容 本发明的目的是是针对上述现有技术中存在的不足， 提供一种 活动铅笔铅芯自动卷削刀。该卷削刀可以自动卷削活动铅笔铅芯，使用方便可 靠, 结构简单， 不易折断铅芯， 切削质量高。  SUMMARY OF THE INVENTION An object of the present invention is to provide a movable pencil lead-core automatic reeling blade in view of the deficiencies in the prior art described above. The reeling knife can automatically roll the active pencil lead core, which is easy to use and reliable, has a simple structure, is not easy to break the lead core, and has high cutting quality.
本发明的技术方案包括， 本体， 设于本体上的铅笔导孔， 连接于本体的滚 刀架，连接于滚刀架上的设有滚刀齿轮的滚刀，所述滚刀齿轮上套设有一环形 内齿轮， 所述滚刀架连接有自动驱动装置。  The technical solution of the present invention comprises: a body, a pencil guiding hole provided on the body, a hob holder connected to the body, a hob provided with a hob gear connected to the hob holder, and the hob gear is sleeved There is an annular internal gear, and the hob is connected to an automatic driving device.
所述自动驱动装置包括驱动电机及相应的电控开关， 连接于滚刀架的传动 齿轮， 分别连接于该传动齿轮和驱动电机轴的由蜗杆、蜗轮轴、及蜗轮齿轮组 合体构成的蜗轮机构。  The automatic driving device comprises a driving motor and a corresponding electric control switch, a transmission gear connected to the hob holder, and a worm gear mechanism composed of a worm, a worm wheel shaft and a worm gear combination body respectively connected to the transmission gear and the driving motor shaft .
所述电控开关为设于所述铅笔导孔上的位置开关。  The electronically controlled switch is a position switch disposed on the pencil guide hole.
所述位置开关 '包括其两端分别设有防脱环并联通于所述铅笔导孔的导向 管， 位于导向管内、 其上设有支承凸环的触杆， 设于所述触杆上的弹簧， 以及 相应的动、 静触片。  The position switch 'includes a guide tube having a retaining ring connected to the pencil guide hole in parallel at both ends thereof, and a contact rod disposed in the guide tube and supported on the protruding ring is disposed on the contact rod Springs, and corresponding moving and static contacts.
所述滚刀刀刃边与滚刀的轴线平行， 所述滚刀的轴线倾斜于所述滚刀架的 轴线一角度。 The edge of the hob blade is parallel to the axis of the hob, and the axis of the hob is inclined to the hob of the hob The axis is at an angle.
所述滚刀刀刃边倾斜于所述滚刀轴线一角度， 所述滚刀轴线平行于所述滚 刀架轴线。  The knives edge is inclined at an angle to the hob axis, the hob axis being parallel to the turret axis.
所述本体上设有一测量孔。  A measuring hole is disposed on the body.
本发明的活动铅笔铅芯卷削刀使用方便可靠， 结构简单。 对于铅芯在 0. 7 - 1. 0以上的活动铅笔使用效果更 理想。 由于滚刀刀刃方向始终指向铅芯的 切线方向，从而对铅芯进行切削而不同于一般卷笔刀的磨削方式。特别是采用 自动驱动卷削， 其进刀量和卷削力度均匀， 因而切削效果好， 卷削时不易折断 铅芯。 同时由于设有铅芯测试孔， 只要按照定量的长度进行卷削， 可以避免浪 费铅芯。 ■  The movable pencil lead core reeling blade of the invention is convenient and reliable to use and has a simple structure. It is more effective for active pencils with lead cores above 0.7 to 1.0. Since the direction of the blade edge always points to the tangential direction of the lead core, the cutting of the lead core is different from the grinding method of the general pencil sharpener. In particular, with automatic drive coiling, the amount of feed and the strength of the cutting are uniform, so the cutting effect is good, and it is not easy to break the lead core during the cutting. At the same time, since the lead-core test hole is provided, it is possible to avoid the waste lead core by performing the coiling according to the quantitative length. ■
附图说明 图 1 为本发明一实施例原理结构示意图。 图 2 为本发明另一 实施例中滚刀及滚刀架原理结构示意图。  BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural diagram of an embodiment of the present invention. Fig. 2 is a schematic view showing the principle structure of a hob and a hob according to another embodiment of the present invention.
具体实施方式 现通过实施例并结合附图对本发明作进一步说明。如图 1 所示， 本发明的第一种实施例中， 如图 1所示： 蜗杆 24安装在驱动电机 25 的轴上，与蜗轮齿轮组合体 22'上的蜗轮相互啮合。蜗轮齿轮组合体 22通过蜗 轮轴 23固定在主体 4上，蜗轮齿轮组合体 22的齿轮与固定于滚刀架 5的滚刀 架轴 15上的传动齿轮 20相互啮合。  BEST MODE FOR CARRYING OUT THE INVENTION The present invention will now be further described by way of embodiments with reference to the accompanying drawings. As shown in Fig. 1, in the first embodiment of the present invention, as shown in Fig. 1, the worm 24 is mounted on the shaft of the drive motor 25 to intermesh with the worm wheel on the worm gear assembly 22'. The worm gear assembly 22 is fixed to the main body 4 via a worm shaft 23, and the gears of the worm gear assembly 22 mesh with the transmission gear 20 fixed to the hob shaft 15 of the hob 5.
本体由主体 4和盖板 11组成，滚刀架 5经滚刀架轴 15活动连接于主体 4 上， 滚刀 18刀刃边 26平行于滚刀轴 17 , 滚刀 18经滚刀轴 17以滚刀 18轴线 倾斜于滚刀架轴线一角度活动连接于滚刀架 5上， 与滾刀轴 1 7同轴线固设于 滚刀轴 17上的滚刀齿轮 19与固设于主体 4上的内环形齿轮 3相互啮合。铅笔 导孔 16与滚刀架 5 同轴线并对应于滚刀 18 固设于盖板 11上， 铅笔导孔 16 的大小和形状与活动铅笔体 13插入铅笔导孔 16的部分的形状和大小相适应。 位置开关的导向管 28的一端固设于铅笔导孔 16的一侧壁并联通于铅笔导 孔 16 ; 导向管 28上的位于铅笔导孔 16—端的防脱环为固定于导向管 28内壁 上的防脱凸环 2， 其相对另一端的防脱环为以螺纹连接于导向管 28的堵头式 防脱凸环 8，外表壁设有支承凸环 1 0的触杆 27上套有一弹簧 9对应于阳极铜 片 6的露出部位设于导向管 28内并长出于导向管 28两端。 静触片 7、 动触片 6对应于触杆 27安装在主体 4上。 The main body is composed of a main body 4 and a cover plate 11. The hob holder 5 is movably connected to the main body 4 via a hob shaft 15, the cutting edge 26 of the hob 18 is parallel to the reel shaft 17, and the hob 18 is rolled by the hob shaft 17. The axis of the knives 18 is movably connected to the turret frame at an angle to the axis of the turret frame, and the hob gear 19 fixed to the hob shaft 17 coaxially with the hob shaft 17 is fixed to the main body 4. The inner ring gears 3 mesh with each other. The pencil guide hole 16 is coaxial with the hob holder 5 and corresponds to the hob 18 fixed to the cover plate 11, the size and shape of the pencil guide hole 16 and the shape and size of the portion of the movable pencil body 13 inserted into the pencil guide hole 16. Adapted. One end of the guide tube 28 of the position switch is fixed to a side wall of the pencil guide hole 16 and connected to the pencil guide hole 16 in parallel; the anti-off ring on the guide tube 28 at the end of the pencil guide hole 16 is fixed on the inner wall of the guide tube 28. The anti-detachment ring 2 of the anti-detachment ring 2 is a plug-type anti-drop ring 8 threadedly connected to the guide tube 28, and the outer wall is provided with a spring on the contact rod 27 supporting the convex ring 10 The exposed portion corresponding to the anode copper sheet 6 is disposed in the guide tube 28 and extends beyond the ends of the guide tube 28. The static contact piece 7 and the movable contact piece 6 are mounted on the main body 4 corresponding to the contact bar 27.
活动铅笔铅芯电动卷芯刀的工作原理及工作过程如下：  The working principle and working process of the active pencil lead core electric core cutter are as follows:
将活动铅笔 1 3插入铅笔导孔 1 6内， 当活动铅笔 1 3的笔锥斜面接触位置 开关的触杆 27内侧端时， 活动铅笔 1 3将将触杆 27向外推， 使动触片 6与静 触片 7接触， 电池仓 1内的电池经过导线 21为驱动 ¾机 25供电， 电机 25旋 转， 经蜗杆 24、 蜗轮齿轮组合体 22及传动齿轮 20减速后带动滚刀架 5围绕 铅芯 14的中心轴线旋转；而滚刀架 5内的滚刀齿轮 19与环型内齿轮 3相啮合， 在滚刀架 5围绕铅芯 14的中心轴线旋转的同时， 带动滚刀齿轮 19和滚刀 18 旋转。 活动铅笔 1 3继续向内插入时， 旋转的滚刀 18开始切削铅芯 14 ; 当活 动铅笔 1 3的笔头的斜面接触活动铅笔导孔 16内的斜面时，铅芯 14已经削好， 拨出活动铅笔 1 3， 位置开关的触杆 27通过弹簧 9复位， 动、 静片 6、 7分离， 驱动电机 25停止转动， 完成卷削。  Insert the movable pencil 1 3 into the pencil guide hole 16 6 . When the tapered surface of the movable pencil 13 contacts the inner end of the contact lever 27 of the position switch, the movable pencil 13 will push the contact lever 27 outward to make the movable contact piece 6 is in contact with the static contact piece 7. The battery in the battery compartment 1 is powered by the driving wire 3 through the wire 21, and the motor 25 is rotated. After being decelerated by the worm 24, the worm gear combination 22 and the transmission gear 20, the roller holder 5 is driven around the lead. The central axis of the core 14 rotates; and the hob gear 19 in the turret 5 meshes with the ring-shaped internal gear 3, and the hob gear 19 and the roller are driven while the hob 5 rotates around the central axis of the lead 14. The knife 18 rotates. When the movable pencil 1 3 continues to be inserted inward, the rotating cutter 18 starts to cut the lead core 14; when the inclined surface of the tip of the movable pencil 13 contacts the inclined surface in the movable pencil guide hole 16, the lead core 14 has been cut and dialed out The movable pencil 1 3, the contact lever 27 of the position switch is reset by the spring 9, the movable and static pieces 6, 7 are separated, and the drive motor 25 stops rotating to complete the winding.
滚刀刀刃边 26倾斜于滚刀架 5的中心线角度的大小以铅芯所需要切削的 锥度确定。 盖板 11上设有一铅芯测量孔 12 , 以测量铅芯的长度和大小， 卷削 铅芯的长度为滚刀刀刃的有效长度。  The edge of the hob blade 26 is inclined at the centerline angle of the hob 5 to determine the taper to be cut by the lead. A lead core measuring hole 12 is provided on the cover plate 11 to measure the length and size of the lead core, and the length of the rolled lead core is the effective length of the hob cutting edge.
在如图 '2所示的本发明的第二种实施例中， 滚刀 18刀刃边 26倾斜于滚 刀轴 17的轴线一角度， 滚刀轴 17和滚刀齿轮 19 两者的轴线与滚刀架轴 15 的轴线相平行以偏心于滚刀架轴 15—距离连接于滚刀架 5上'。  In the second embodiment of the invention as shown in Fig. 2, the blade edge 26 of the hob 18 is inclined at an angle to the axis of the hob shaft 17, and the axis and roll of both the hob shaft 17 and the hob gear 19 are rolled. The axes of the tool holder shafts 15 are parallel to be eccentric to the turret shaft 15 - the distance is connected to the turret 5 '.

Claims

权 利 要 求 书 Claim
1、 一种活动铅笔铅芯自动卷削刀， 包括本体， 设于本体上的铅笔导孔， 连接于本体的滚刀架， 连接于滚刀架上的设有滚刀齿轮的滚刀， 所述滚刀齿 轮上套设有一环形内齿轮， 其特征是所述滚刀架连接有自动驱动装置。 1. An active pencil lead-core automatic reeling cutter, comprising a body, a pencil guide hole provided on the body, a hob holder connected to the body, and a hob provided with a hob gear on the hob holder, The hob gear is sleeved with an annular internal gear, and the hob is connected with an automatic driving device.
2、根据权利要求 1所述活动铅笔铅芯自动卷削刀， 其特征是所述自动驱 动装置包括驱动电机及相应的电控开关， 连接于滚刀架的传动齿轮， 分别连 接于该传动齿轮和驱动电机轴的由蜗杆、 蜗轮轴、 及蜗轮齿轮组合体构成的 蜗轮机构。  2. The movable pencil lead automatic reeling blade according to claim 1, wherein said automatic driving device comprises a driving motor and a corresponding electric control switch, and a transmission gear connected to the hob holder is respectively connected to the transmission gear. And a worm gear mechanism comprising a worm, a worm shaft, and a worm gear combination for driving the motor shaft.
3、根据权利要求 2所述活动铅笔铅芯自动卷削刀， 其特征是所述电控开 关为设于所述铅笔导孔上的位置开关。  3. The movable pencil lead automatic reel according to claim 2, wherein said electronically controlled switch is a position switch provided on said pencil guide hole.
4、根据权利要求 3所述活动铅笔铅芯自动卷削刀， 其特征是所述位置开 关包括其两端分别设有防脱环并联通于所述铅笔导孔的导向管， 位于导向管 内、 其上设有支承凸环的触軒， 设于所述触杆上的弹簧， 以及相应的动、 静 触片。  4. The movable pencil lead-core automatic reeling blade according to claim 3, wherein the position switch comprises a guide tube having a retaining ring connected to the pencil guiding hole at both ends thereof, and is located in the guiding tube. It is provided with a contact ring supporting a convex ring, a spring disposed on the contact bar, and corresponding moving and static contact pieces.
5、根据权利要求 1所述活动铅笔铅芯自动卷削刀， 其特征是所述滚刀刀 刃边与滚刀的轴线平行， 所述滚刀的轴线倾斜于所述滚刀架的轴线一角度。  5. The movable pencil lead-core automatic reeling blade according to claim 1, wherein said reel blade edge is parallel to an axis of said hob, said hob axis being inclined at an angle of said axis of said hob holder .
6、根据权利要求 1所述活动铅笔铅芯自动卷削刀， 其特征是所述滚刀刀 刃边倾斜于所述滚刀轴线一角度， 所述滚刀轴线平行于所述滚刀架轴线。  6. The movable pencil lead automatic reel according to claim 1, wherein said hob edge is inclined at an angle to said hob axis, said hob axis being parallel to said hob axis.
7、根据权利要求 1所述活动铅笔铅芯自动卷削刀， 其特征是所述本体上 设有一测量孔。  7. The movable pencil lead automatic reel according to claim 1, wherein said body is provided with a measuring hole.
PCT/CN2009/000613 2008-06-02 2009-06-01 Automatic lead sharpener for propelling pencil WO2009146601A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA200810106899XA CN101284475A (en) 2008-06-02 2008-06-02 Automatic pencil-sharpener of propelling pencil lead core
CN200810106899.X 2008-06-02

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108422779A (en) * 2018-06-11 2018-08-21 郑高伟 A kind of adjustable pencil sharpener hob arbor carriage
CN113442628A (en) * 2021-06-11 2021-09-28 广东工业大学华立学院 Electric pencil sharpening tool

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101284475A (en) * 2008-06-02 2008-10-15 漆和芝 Automatic pencil-sharpener of propelling pencil lead core
CN206124573U (en) * 2016-02-04 2017-04-26 宁海县金益文具有限公司 A cut a ware for sketch pen
CN110171240B (en) * 2019-06-29 2020-11-24 黑龙江工程学院 Automatic pencil sharpener for card coating pen of English answer sheet
CN112248697B (en) * 2020-10-15 2021-12-24 云阳县凤鸣镇凤鸣小学 Pencil sharpener for stationery

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GB626744A (en) * 1946-06-21 1949-07-20 Steiner Paul Case or housing incorporating a device for pointing pencil leads
US4961451A (en) * 1987-05-11 1990-10-09 Bucci Albert W Sharpener for rectangular pencils
CN2084013U (en) * 1990-10-22 1991-09-04 金华市车辆厂 Electric sharpener for pencil
CN2281904Y (en) * 1997-03-09 1998-05-20 黄继宗 Multifunctional sharpener for thick core prepelling pencil
CN2413922Y (en) * 2000-01-23 2001-01-10 戈杰 Lead sharpener for propelling pencil
JP2008105293A (en) * 2006-10-26 2008-05-08 Matsushita Electric Ind Co Ltd Electric pencil sharpener
CN101284475A (en) * 2008-06-02 2008-10-15 漆和芝 Automatic pencil-sharpener of propelling pencil lead core

Patent Citations (7)

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Publication number Priority date Publication date Assignee Title
GB626744A (en) * 1946-06-21 1949-07-20 Steiner Paul Case or housing incorporating a device for pointing pencil leads
US4961451A (en) * 1987-05-11 1990-10-09 Bucci Albert W Sharpener for rectangular pencils
CN2084013U (en) * 1990-10-22 1991-09-04 金华市车辆厂 Electric sharpener for pencil
CN2281904Y (en) * 1997-03-09 1998-05-20 黄继宗 Multifunctional sharpener for thick core prepelling pencil
CN2413922Y (en) * 2000-01-23 2001-01-10 戈杰 Lead sharpener for propelling pencil
JP2008105293A (en) * 2006-10-26 2008-05-08 Matsushita Electric Ind Co Ltd Electric pencil sharpener
CN101284475A (en) * 2008-06-02 2008-10-15 漆和芝 Automatic pencil-sharpener of propelling pencil lead core

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108422779A (en) * 2018-06-11 2018-08-21 郑高伟 A kind of adjustable pencil sharpener hob arbor carriage
CN108422779B (en) * 2018-06-11 2023-07-25 郑高伟 Adjustable hob rest of pencil sharpener
CN113442628A (en) * 2021-06-11 2021-09-28 广东工业大学华立学院 Electric pencil sharpening tool
CN113442628B (en) * 2021-06-11 2022-05-13 广东工业大学华立学院 Electric pencil sharpening tool

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