JPH0222302Y2 - - Google Patents
Info
- Publication number
- JPH0222302Y2 JPH0222302Y2 JP1982140129U JP14012982U JPH0222302Y2 JP H0222302 Y2 JPH0222302 Y2 JP H0222302Y2 JP 1982140129 U JP1982140129 U JP 1982140129U JP 14012982 U JP14012982 U JP 14012982U JP H0222302 Y2 JPH0222302 Y2 JP H0222302Y2
- Authority
- JP
- Japan
- Prior art keywords
- press
- fit
- fitting
- cap
- joint
- 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
Links
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002788 crimping Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Landscapes
- Pens And Brushes (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Description
【考案の詳細な説明】
本考案は、筆記具の先軸とキヤツプを接続する
継手や、キヤツプの頂端に取付ける天冠等の、特
に圧入によつて他部品に接合する部品の改良に関
する。[Detailed Description of the Invention] The present invention relates to the improvement of parts that are joined to other parts by press-fitting, such as a joint that connects the tip of a writing instrument and a cap, and a crown that is attached to the top end of a cap.
従来、先軸やキヤツプに継手や天冠を接合する
方法として、螺着、接着及び圧入等の方法がある
が、螺着や接着は手間がかかるので、最も簡便な
圧入がよく利用されている。しかしながら、圧入
部における部品間のシメ代にバラツキがあると圧
入力が一定せず、圧入力が小さい場合は取付強度
が不足し、逆に圧入力が大き過ぎると被圧入部品
にフクレなどの変形が生じて外観が不良になる虞
がある。従つて、部品間に適切なシメ代を設ける
ために寸法精度を高めなければならぬ面倒があつ
た。 Conventionally, methods for joining joints and crowns to the tip shaft or cap include screwing, gluing, and press-fitting, but since screwing and gluing are time-consuming, press-fitting is often used as it is the simplest method. . However, if there are variations in the interference between parts at the press-fitting part, the press-in force will not be constant, and if the press-fit force is small, the installation strength will be insufficient, and conversely, if the press-fit force is too large, the parts to be press-fit may become deformed, such as blisters. This may result in poor appearance. Therefore, it was a hassle to increase the dimensional accuracy in order to provide an appropriate seam allowance between the parts.
そこで、厳格な寸法精度を必要とせず、圧入を
より容易化するために、実開昭54−27725号公報
にみられるように、圧入部品に軸方向の切割りを
形成して、圧入部位を半径方向の中心へ向かつて
圧縮できるようにしたものが公知となつている
が、圧入部位の先端が切割りによつて分割される
ことになるので、切割りで挾まれた部位どうしの
支えがなくなつて、圧縮に対する弾性反発力が弱
くなり、被圧入部品への圧着力即ち取付強度が小
さいという欠点があつた。 Therefore, in order to make press-fitting easier without requiring strict dimensional accuracy, as shown in Japanese Utility Model Application Publication No. 54-27725, an axial cut is formed in the press-fitted part to make the press-fitting area easier. A device that can be compressed toward the center in the radial direction is known, but since the tip of the press-fitted part is divided by a cut, it is difficult to support the parts sandwiched by the cut. As a result, the elastic repulsion force against compression becomes weaker, resulting in a disadvantage that the pressing force to the press-fitted part, that is, the attachment strength is small.
そこで本考案は、圧入部位の厳格な寸法精度を
必要とせず、被圧入部品の外観にフクレ等の変形
が生じて外観不良となる虞もなく、且つ被圧入部
品に対する圧着力即ち取付強度が十分に大きい筆
記具における圧入接合部品の提供を目的とする。 Therefore, the present invention does not require strict dimensional accuracy of the press-fitted part, there is no risk of deformation such as blistering occurring in the external appearance of the press-fitted part, and the crimping force for the press-fitted part, that is, the mounting strength is sufficient. The purpose is to provide press-fit joint parts for large writing instruments.
上記目的を達成するために、本考案の筆記具に
おける圧入接合部品は、圧入部位の内面部に中グ
リ部を形成して該圧入部位の肉厚をキヤツプ等の
被圧入部品の肉厚より薄くしてなるものである。 In order to achieve the above object, the press-fit joint part of the writing instrument of the present invention has a hollow part formed on the inner surface of the press-fit part to make the wall thickness of the press-fit part thinner than the wall thickness of the press-fit part such as the cap. This is what happens.
図面は実施例を示すものであり、第１図は先軸
１とキヤツプ２を接合すべく設けられた継手３を
示す。この継手３は略中央部外周に鍔部４を有
し、該鍔部４より前方の筒部外面に先軸１に螺着
するネジ部５を設け、また鍔部４より後方の筒部
をキヤツプ２に対する圧入部位６となし、該圧入
部位６の内面部に中グリ部７を形成して圧入部位
６の肉厚をキヤツプ２の肉厚よりも薄くして、更
に圧入部位６の前端外面部に逃げとして周溝８を
設けると共に圧入部位６の後端外面部に同じく逃
げとしてテーパ状切欠部９を設けている。この継
手３の圧入部位６をキヤツプ２の内面部に圧入す
る場合、圧入部位６のシメ代が多少大きくても、
圧入部位６に設けた中グリ部７によつて圧入部位
６が半径方向の中心へ向かつて弾性変形（但しシ
メ代が大きすぎる分多少塑性変形する）して圧縮
されるので容易に圧入が行われ、その圧縮に対す
る弾性反発力により圧入部位６がキヤツプ２の内
面に強く圧着し、しかも圧入部位６の肉厚がキヤ
ツプ２の肉厚よりも薄いので圧入部位６の圧縮が
大きく逆にキヤツプ２の膨張が小さくなつてキヤ
ツプ２の外面にフクレなどの変形が発生せず外観
不良をまねくことがない。 The drawings show an embodiment, and FIG. 1 shows a joint 3 provided to join a tip shaft 1 and a cap 2. This joint 3 has a flange 4 on the outer periphery of the approximately central part, a threaded part 5 that is screwed onto the front shaft 1 on the outer surface of the cylindrical part in front of the flange 4, and a cylindrical part behind the flange 4. A press-fitting part 6 is formed on the cap 2, and a hollow part 7 is formed on the inner surface of the press-fitting part 6 to make the wall thickness of the press-fitting part 6 thinner than that of the cap 2. A circumferential groove 8 is provided as a relief in the press-fitting portion 6, and a tapered notch 9 is also provided as a relief on the outer surface of the rear end of the press-fit portion 6. When press-fitting the press-fitting part 6 of this joint 3 into the inner surface of the cap 2, even if the press-fitting part 6 has a somewhat large shimmy allowance,
The press-fitting part 6 is elastically deformed toward the center in the radial direction by the hollow part 7 provided in the press-fitting part 6 (however, it is slightly plastically deformed because the shimming allowance is too large) and compressed, so that the press-fitting is easily performed. The press-fitting part 6 is strongly pressed against the inner surface of the cap 2 due to the elastic repulsive force against the compression, and since the wall thickness of the press-fitting part 6 is thinner than that of the cap 2, the compression of the press-fitting part 6 is large, and conversely, the cap 2 is compressed. Since the expansion of the cap 2 is reduced, deformations such as blisters do not occur on the outer surface of the cap 2, and no appearance defects occur.
第２図は同じく先軸１とキヤツプ２を接続する
継手３′を示す。この継手３′は第１図に示した継
手３と略同一で、ただ圧入部位６の後端に設けた
逃げとしての切欠部９′がテーパ状ではなくてス
トレートになつたものである。 FIG. 2 similarly shows a joint 3' connecting the tip shaft 1 and the cap 2. This joint 3' is substantially the same as the joint 3 shown in FIG. 1, except that the notch 9' provided as a relief at the rear end of the press-fit portion 6 is not tapered but straight.
第３図はキヤツプ２の頂端に圧入固着する天冠
１０を示す。この天冠１０は前半部に筒部を有し
て、この筒部をキヤツプ２に対する圧入部位６と
なし、該圧入部位６の内面部に中グリ部７を設
け、圧入部位６の前端外面部に逃げとしてテーパ
状切欠部９を設けると共に圧入部位６の後端外面
部に同じく逃げとして周溝８を設け、圧入部位６
の肉厚をキヤツプ２の肉厚よりも小さくしたもの
である。 FIG. 3 shows the crown 10 which is press-fitted onto the top end of the cap 2. This crown 10 has a cylindrical part in the front half, and this cylindrical part serves as a press-fitting part 6 for the cap 2. A hollow part 7 is provided on the inner surface of the press-fitting part 6, and the front end outer surface of the press-fitting part 6 is provided with a hollow part 7. A tapered notch 9 is provided as a relief at the press-fitting portion 6, and a circumferential groove 8 is also provided on the outer surface of the rear end of the press-fitting portion 6 as a relief.
The wall thickness of the cap 2 is made smaller than that of the cap 2.
本考案は叙上の如く構成されており、圧入部位
のシメ代を多少大きくしても圧入が容易に行われ
るので寸法精度を緩くして加工又は成形を容易化
し、しかも圧入部位の圧縮に対する弾性反発力で
圧入部位が被圧入部品の内面部に強く圧着して大
きな取付強度を得ることができるので脱落等の事
故を防止し、さらに圧入部位が半径方向の中心へ
向かつて大きく圧縮し逆に被圧入部品のフクレを
抑えるので外観不良の発生を防止する等の効果を
奏する。尚、実用新案登録請求の範囲第２項記載
の如く構成すれば、より圧入が容易化し、圧入部
位がより圧縮しやすくなる利点がある。 The present invention is constructed as described above, and press-fitting can be easily performed even if the shimmy margin of the press-fitting part is increased to some extent, so the dimensional accuracy is relaxed to facilitate processing or molding, and the elasticity of the press-fitting part against compression is improved. The repulsive force causes the press-fitted part to strongly press against the inner surface of the press-fitted part, achieving great mounting strength, which prevents accidents such as falling off.Furthermore, as the press-fitted part moves toward the center in the radial direction, it compresses greatly and vice versa. Since it suppresses blistering of the press-fitted parts, it has the effect of preventing appearance defects. Incidentally, if the structure is configured as described in claim 2 of the utility model registration, there is an advantage that press-fitting becomes easier and the press-fitting part becomes easier to compress.
第１図は圧入接合部品が継手である場合の接合
状態を示す断面図、第２図は圧入接合部品が他の
継手である場合の接合状態を示す断面図、第３図
は圧入接合部品が天冠である場合の断面図であ
る。
１……先軸、２……キヤツプ、３，３′……継
手、６……圧入部位、７……中グリ部、８……周
溝、９，９′……切欠部、１０……天冠。
Figure 1 is a cross-sectional view showing the joint state when the press-fit joint part is a joint, Figure 2 is a cross-sectional view showing the joint state when the press-fit joint part is another joint, and Figure 3 is a cross-sectional view showing the joint state when the press-fit joint part is a joint. It is a sectional view in case it is a crown of heaven. 1... Tip shaft, 2... Cap, 3, 3'... Joint, 6... Press fit part, 7... Center bore part, 8... Peripheral groove, 9, 9'... Notch part, 10... Crown of heaven.
Claims (1)
入部位の肉厚をキヤツプ等の被圧入部品の肉厚
より薄くしてなる筆記具における圧入接合部
品。 ２ 圧入部位における両端位置の外面部に被圧入
部品の内面部に対し非接触状態となる逃げ部を
形成した実用新案登録請求の範囲第１項記載の
筆記具における圧入接合部品。[Claims for Utility Model Registration] 1. A press-fit joint part for a writing instrument, in which a hollow part is formed on the inner surface of a press-fit part, and the wall thickness of the press-fit part is thinner than the wall thickness of a press-fitted part such as a cap. 2. A press-fit joint part in a writing instrument according to claim 1, which is a utility model registration, wherein relief parts are formed on the outer surface portions of both end positions of the press-fit portion to be in a non-contact state with the inner surface portion of the press-fitted part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14012982U JPS5943187U (en) | 1982-09-16 | 1982-09-16 | Press-fit joint parts for writing instruments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14012982U JPS5943187U (en) | 1982-09-16 | 1982-09-16 | Press-fit joint parts for writing instruments |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5943187U JPS5943187U (en) | 1984-03-21 |
| JPH0222302Y2 true JPH0222302Y2 (en) | 1990-06-15 |
Family
ID=30313857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14012982U Granted JPS5943187U (en) | 1982-09-16 | 1982-09-16 | Press-fit joint parts for writing instruments |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5943187U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4606659B2 (en) * | 2001-07-10 | 2011-01-05 | パイロットインキ株式会社 | Writing instrument refill |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5427725U (en) * | 1977-07-26 | 1979-02-23 |
-
1982
- 1982-09-16 JP JP14012982U patent/JPS5943187U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5943187U (en) | 1984-03-21 |
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