JPH0732154Y2 - Pencil sharpener - Google Patents
Pencil sharpenerInfo
- Publication number
- JPH0732154Y2 JPH0732154Y2 JP1990091948U JP9194890U JPH0732154Y2 JP H0732154 Y2 JPH0732154 Y2 JP H0732154Y2 JP 1990091948 U JP1990091948 U JP 1990091948U JP 9194890 U JP9194890 U JP 9194890U JP H0732154 Y2 JPH0732154 Y2 JP H0732154Y2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- cutter
- mounting pin
- cutter holder
- support wall
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Landscapes
- Drawing Aids And Blackboards (AREA)
Description
【考案の詳細な説明】 （産業上の利用分野） 本考案は鉛筆削り器に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a pencil sharpener.
（従来の技術） 従来、この種の技術手段として、例えばカッターを遊嵌
したカッター軸の一端を嵌合するための無螺孔を回転台
の鉛筆挿入孔の先端部に形成すると共に該挿入孔の開口
縁に近い部分に形成された腕に上記カッター軸の他端を
貫挿し、かつ切れ目を有する環状体の一部に突起を設け
てその突起にカッター軸の端部が嵌合する凹部を形成し
たカッター軸押えを弾性のある合成樹脂で一体に成型し
てその押えを回転台の鉛筆挿入孔の開口部外側に弾性的
に嵌合することにより回転台の段部と該回転台の先端を
嵌合した筐体壁との間に上記押えを軸方向に移動しない
ように介挿したカッター軸押え装置が実公昭49-19324号
公報などによって公知となっている。(Prior Art) Conventionally, as this type of technical means, for example, a non-threaded hole for fitting one end of a cutter shaft in which a cutter is loosely fitted is formed at the tip of a pencil insertion hole of a rotary table, and the insertion hole is formed. The other end of the cutter shaft is inserted into an arm formed near the opening edge of the, and a projection is provided on a part of the annular body having a cut, and a recess for fitting the end of the cutter shaft to the projection is formed. The formed cutter shaft retainer is integrally molded with elastic synthetic resin, and the retainer is elastically fitted to the outside of the opening of the pencil insertion hole of the rotary table to form a stepped portion of the rotary platform and the tip of the rotary table. A cutter shaft retainer in which the above retainer is inserted so as not to move in the axial direction with a housing wall in which is fitted is known from JP-B-49-19324.
（考案が解決しようとする課題） 然しながら、この構造のものはカッターに貫通したカッ
ター軸のほかに回転台に取付けてこのカッター軸の抜脱
方向への移行を防止するカッター軸押え用の格別の部材
を必要とするので部品数が多くなるのみならずその組込
みのために工程数も増えて作業性が悪くなりこのために
コスト高となるなどの問題点があった。(Problems to be solved by the invention) However, this structure has a special cutter shaft retainer that prevents the cutter shaft from moving in the removal direction by mounting it on the rotating table in addition to the cutter shaft that penetrates the cutter. Since a member is required, the number of parts is increased, and the number of steps is increased due to the assembling, resulting in poor workability, resulting in high cost.
（課題を解決するための手段） 本考案はカッター１の中心部に挿通してその先端部をカ
ッターホルダー３に設けた穴４に嵌入させる取付ピン２
の基端部に周側面が凹凸状となるローレット部13を設
け、またカッターホルダー３には支壁９を設けてその支
壁９に取付ピン２におけるローレット部13の外接円の直
径よりも内径が小さい通孔11を設けて上記のローレット
部13を通孔11に圧入することにより取付ピン２を固定し
たことを特徴とする鉛筆削り器を提供することによって
このような問題点を解決しようとするものである。(Means for Solving the Problem) The present invention is a mounting pin 2 which is inserted through the center of a cutter 1 and whose tip is fitted into a hole 4 provided in a cutter holder 3.
A knurled portion 13 having a concave and convex peripheral side surface is provided at the base end portion thereof, and a cutter holder 3 is provided with a support wall 9 which has an inner diameter larger than the diameter of the circumscribed circle of the knurled portion 13 in the mounting pin 2. In order to solve such a problem by providing a pencil sharpener characterized in that the mounting pin 2 is fixed by providing a small through hole 11 and press-fitting the knurled portion 13 into the through hole 11. To do.
（実施例） まずカッターホルダー３は一端に鉛筆挿入筒部６を設け
ると共に他端にハンドル接続ねじ部７を設け、鉛筆挿入
筒部６の一部側面を鉛筆挿入孔に開通するように斜めに
切欠し、この斜状切欠部８の両側に支壁９と段部10を設
けて支壁９に通孔11を穿設すると共に段部10には穴４を
設けて更にその穴４の奥に内径がより小さい小穴５を設
けている。カッターホルダー３は第５図に示すようにケ
ース12に対し回転自在に取付けられる。次にカッター１
は軸方向の中心孔を有し、カッターホルダー３における
支壁９と段部10の間の斜状切欠部８に沿って中心孔の両
端開口が支壁９の通孔11と段部10の穴４にそれぞれ対向
するように配置される。次に取付ピン２はカッター１の
中心孔に挿通可能な外径を有し、その先端に外径が少し
縮小した細径部2aを設けてその細径部2aの先端に尖鋭な
円錐状部2bを形成し、また基端側には周側面が凹凸状の
ローレット部13を設けると共にそのローレット部13内に
周溝14を設けている。取付ピン２はカッター１に挿通さ
れてその先端円錐状部2bをカッターホルダー３の段部10
における穴４の奥の小穴５に圧入して先端部を固定し、
またローレット部13を支壁９の通孔11に圧入して基端部
を固定する。尚、取付ピン２の基端部の周溝14は支壁９
の外側に位置し、取付ピン２を抜出するときにその周溝
14にマイナスドライバー等を引掛けて抜出できるように
している。取付ピン２の基端部のローレット部13が支壁
９の通孔11に圧入する場合に全周が均一に圧潰するよう
になるのでセンターが偏ることなく固定されることにな
る。(Embodiment) First, the cutter holder 3 is provided with a pencil insertion tube portion 6 at one end and a handle connecting screw portion 7 at the other end, and a part of the side surface of the pencil insertion tube portion 6 is slanted so as to be opened into the pencil insertion hole. A notch is formed, and a supporting wall 9 and a step portion 10 are provided on both sides of the oblique notch portion 8 to form a through hole 11 in the supporting wall 9 and a hole 4 is provided in the step portion 10 to further deepen the hole 4. Is provided with a small hole 5 having a smaller inner diameter. The cutter holder 3 is rotatably attached to the case 12 as shown in FIG. Then cutter 1
Has a central hole in the axial direction, and both end openings of the central hole along the slanted notch 8 between the supporting wall 9 and the step portion 10 of the cutter holder 3 are defined by the through hole 11 of the supporting wall 9 and the step portion 10. The holes 4 are arranged so as to face each other. Next, the mounting pin 2 has an outer diameter that can be inserted into the center hole of the cutter 1, and has a small diameter portion 2a having a slightly reduced outer diameter at the tip thereof, and a sharp conical portion at the tip of the thin diameter portion 2a. 2b is formed, and on the base end side, a knurled portion 13 whose peripheral side surface is uneven is provided, and a circumferential groove 14 is provided in the knurled portion 13. The mounting pin 2 is inserted into the cutter 1, and the conical end portion 2b of the mounting pin 2 is attached to the step portion 10 of the cutter holder 3.
Press-fit into the small hole 5 at the back of the hole 4 to fix the tip end,
Further, the knurled portion 13 is press-fitted into the through hole 11 of the support wall 9 to fix the base end portion. In addition, the peripheral groove 14 at the base end of the mounting pin 2 is the support wall 9
Located on the outside of the mounting pin 2 when the mounting pin 2 is pulled out
A flat-blade screwdriver, etc. is hooked on 14 so that it can be pulled out. When the knurled portion 13 at the base end of the mounting pin 2 is press-fitted into the through hole 11 of the support wall 9, the entire circumference is uniformly crushed, so that the center is fixed without being biased.
（考案の作用及び効果） 本考案は叙上のようにカッター１の中心部に挿通してそ
の先端部をカッターホルダー３に設けた穴４に嵌入させ
る取付ピン２の基端部に周側面が凹凸状となるローレッ
ト部13を設け、またカッターホルダー３には支壁９を設
けてその支壁９に取付ピン２におけるローレット部13の
外接円の直径よりも内径が小さい通孔11を設けて上記の
ローレット部13を通孔11に圧入することにより取付ピン
２を固定したことを特徴とするので、前記公知のものに
おけるように取付ピン２の抜け出し防止のための格別な
部品を必要としないのみならずこの取付ピン２の固定作
業もそのローレット部13を単に支壁９に設けた通孔11に
圧入すれば足りるので頗る簡単であり、本考案はこれら
によって前記の問題点を充分に解決できる効果を奏する
ものである。(Effect and Effect of the Invention) The present invention inserts the central portion of the cutter 1 and inserts the tip end thereof into the hole 4 provided in the cutter holder 3 as shown in the above. An uneven knurled portion 13 is provided, a cutter holder 3 is provided with a support wall 9, and a through hole 11 having an inner diameter smaller than the diameter of the circumscribed circle of the knurled portion 13 in the mounting pin 2 is provided on the support wall 9. Since the mounting pin 2 is fixed by press-fitting the knurled portion 13 into the through hole 11, no special component for preventing the mounting pin 2 from slipping out is required unlike the above-mentioned known one. Not only the fixing work of this mounting pin 2 is sufficient if the knurled portion 13 is simply press-fitted into the through hole 11 provided in the supporting wall 9, so that the present invention is sufficiently easy to solve the above-mentioned problems. Produce the effect It is intended.
図は本考案の実施例を示すもので、第１図はカッターホ
ルダーにカッターを取付ける前の状態の側面図、第２図
はカッターホルダーにカッターを取付けた状態の側面
図、第３図は第２図Ａ−Ａ線断面図、第４図は第２図Ｂ
−Ｂ線断面図、第５図はケースに取付けた状態の側面図
である。 １……カッター、２……取付ピン、2a……細径部、2b…
…円錐状部、３……カッターホルダー、４……穴、５…
…小穴、６……鉛筆挿入筒部、７……ハンドル接続ねじ
部、８……斜状切欠部、９……支壁、10……段部、11…
…通孔、12……ケース、13……ローレット部、14……周
溝。FIG. 1 shows an embodiment of the present invention. FIG. 1 is a side view of the cutter holder before the cutter is attached, FIG. 2 is a side view of the cutter holder with the cutter attached, and FIG. Fig. 2 is a sectional view taken along the line AA, and Fig. 4 is Fig. 2B.
FIG. 5 is a cross-sectional view taken along the line -B, and FIG. 1 ... Cutter, 2 ... Mounting pin, 2a ... Small diameter part, 2b ...
… Conical part, 3 …… Cutter holder, 4 …… Hole, 5…
… Small hole, 6 …… Pencil insertion tube part, 7 …… Handle connection screw part, 8 …… Slanted notch, 9 …… Support wall, 10 …… Step part, 11…
… Through hole, 12 …… case, 13 …… knurled part, 14 …… circumferential groove.
Claims (1)
をカッターホルダー３に設けた穴４に嵌入させる取付ピ
ン２の基端部に周側面が凹凸状となるローレット部13を
設け、またカッターホルダー３には支壁９を設けてその
支壁９に取付ピン２におけるローレット部13の外接円の
直径よりも内径が小さい通孔11を設けて上記のローレッ
ト部13を通孔11に圧入することにより取付ピン２を固定
したことを特徴とする鉛筆削り器。1. A knurled portion 13 having a concave and convex peripheral side surface is provided at a base end portion of a mounting pin 2 which is inserted through a central portion of a cutter 1 and whose tip portion is fitted into a hole 4 provided in a cutter holder 3. Further, the cutter holder 3 is provided with a support wall 9, and the support wall 9 is provided with a through hole 11 having an inner diameter smaller than the diameter of the circumscribing circle of the knurl portion 13 in the mounting pin 2 so that the above knurl portion 13 can be provided with the through hole 11. A pencil sharpener characterized in that the mounting pin 2 is fixed by press fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990091948U JPH0732154Y2 (en) | 1990-08-31 | 1990-08-31 | Pencil sharpener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990091948U JPH0732154Y2 (en) | 1990-08-31 | 1990-08-31 | Pencil sharpener |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0450292U JPH0450292U (en) | 1992-04-28 |
| JPH0732154Y2 true JPH0732154Y2 (en) | 1995-07-26 |
Family
ID=31828015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990091948U Expired - Lifetime JPH0732154Y2 (en) | 1990-08-31 | 1990-08-31 | Pencil sharpener |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0732154Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4919324U (en) * | 1972-05-18 | 1974-02-19 |
-
1990
- 1990-08-31 JP JP1990091948U patent/JPH0732154Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0450292U (en) | 1992-04-28 |
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