JP3094359U - Safety thumbtack - Google Patents
Safety thumbtackInfo
- Publication number
- JP3094359U JP3094359U JP2002007574U JP2002007574U JP3094359U JP 3094359 U JP3094359 U JP 3094359U JP 2002007574 U JP2002007574 U JP 2002007574U JP 2002007574 U JP2002007574 U JP 2002007574U JP 3094359 U JP3094359 U JP 3094359U
- Authority
- JP
- Japan
- Prior art keywords
- cover
- thumbtack
- head
- concave hole
- needle
- 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
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
(57)【要約】
【課題】 画鋲で針先を覆うカバーを有し、且つ不使用
時にカバ−が自動的に針先を覆うようにする。
【解決手段】選択図に示すように、画鋲の頭部1の両側
面に凹穴4を設け、その凹穴の底を傾斜面としてカム作
用を持たせ、馬蹄形またはコ字形のカバー3の両脚の端
部内側に突起5を設け、その突起の端面を傾斜面として
カム作用を持たせ、凹穴4と突起5とを嵌合させること
でカバー3を画鋲の頭部1に回動可能に取付け、このと
き凹穴4の底のカム面と突起5の端面のカム面とが、画
鋲不使用時にはカム面同士平行になって全面で接触し、
画鋲使用時にカバーを針先から退避させると、凹穴底面
の傾斜面の高い所に突起5のカム面の先端が乗って、カ
バー両脚を開くようにして、カバーの弾性でカバーに針
先を覆う位置に復帰する力を付与するようにして、画鋲
を抜くと自動的にカバーが針先を覆うようにした。
(57) [Problem] To provide a cover for covering a needle tip with a thumbtack, and to automatically cover the needle tip when not in use. As shown in a selection diagram, a concave hole 4 is provided on both side surfaces of a head 1 of a thumbtack, and the bottom of the concave hole has a cam function with an inclined surface, and both legs of a horseshoe-shaped or U-shaped cover 3 are provided. The cover 3 is rotatable with respect to the head 1 of the thumbtack by providing a cam 5 with the end face of the protrusion as an inclined surface to provide a cam action and fitting the concave hole 4 and the protrusion 5. At this time, the cam surface at the bottom of the concave hole 4 and the cam surface at the end surface of the projection 5 are parallel to each other when the thumbtack is not used, and come into contact with each other,
When the cover is retracted from the needle tip when using a thumbtack, the tip of the cam surface of the projection 5 rides on the high slope of the bottom surface of the concave hole, and opens both legs of the cover. By applying a force to return to the covering position, the cover automatically covers the needle tip when the thumbtack is pulled out.
Description
【考案の詳細な説明】 【0001】 【考案の属する技術分野】 本考案は画鋲で特に不使用時に針先をカバーするようにしたものに関する。 【0002】 【従来の技術】 通常の画鋲は扁平な頭に針を立てた形なので、落とすと、針が上向きになり危 険である。 このため頭部を立体的にして落としても針が横になっているようにしたものが 市販されている。しかしより安全にするために針を頭部に起倒可能に取付け、不 使用時に針が寝ているようにしたものが提案されている。 【0003】 【考案が解決しようとする課題】 上述した針が頭部に対して起倒自在な画鋲は安全性は高いが、手で針を起倒し なければならないので使用上不便であり、針を倒し忘れると危険である。 この点に鑑み本考案は画鋲を相手面に刺し込むときは自動的に針カバーが横に よけ、画鋲を抜くと自動的にカバーが針を覆うようにして、不便さを除き、安全 性をより向上させようとするものである。 【0004】 【課題を解決するための手段】 立体的な摘子状の形で針をインサート成型した頭部と馬蹄形のカバーとよりな り、上記頭部の両側面に突起または凹穴を設け、上記馬蹄形のカバーの両脚端部 内面に上記頭部両側の突起または凹穴と嵌合する凹穴または突起を設けて、上記 頭部を両側から挟むように上記カバーを回動可能に頭部に結合し、頭部とカバー との上記結合部において、相互に嵌り合う突起と凹穴の端面の形をカムにしてカ バーを頭部の軸線(針の軸線)と直角の方向にしたとき、上記カムの作用でカバ ーの両脚が押し広げられ、上記カバ−が弾性的にカバーが針を覆う位置(針の軸 線と平行)に戻る力が生じるようにした。 【0005】 上述構造によると、画鋲の頭部とカバーとの関係はカバーが針先を覆っている 状態が安定位置であり、カバーが針先から退避した位置ではカバーは上記した安 定位置に戻ろうとしているので、画鋲を抜けば自動的にカバーが針先を覆うこと になって、極めて安全である。 【0006】 【考案の実施の形態】 図1は本考案の実施形態の一例で、同図aは非使用時の正面図、同図bは使用 状態における側面図である。この考案の特徴は図1bに示す使用状態から画鋲を 抜くと図1aの状態に自動的に移行する点にある。 図2は画鋲頭部からカバーを外した所を示す。図1および図2で、1は画鋲の 頭部、2は針で頭部1にインサート成型により取付けられており、3がカバーで ある。頭部1は稍扁平な形で指で摘むに適した形にしてある。頭部1の両側面に は凹穴4が形成してあり、その凹穴の底はカム面41となっている。このカム面 の形は後述する。カバー3は馬蹄形(或はコ字形)で頭部1を両側から挟める脚 幅を持っており、両脚の端部近くの内側に夫々突起5が形成してある。それらの 突起の端面もカム面51になっている。カバー3は突起5を頭部1の両側凹穴4 に嵌め合わせることで頭部1に回動可能に取付けられる。 図1,図2から明らかなようにカバー3は不使用時は頭部1と同軸になって針 2の先端をカバーし、使用時は針先から退避している。 【0007】 頭部1の凹穴4の底のカム面41とカバー3の内側の突起5端面のカム面51 とは共に夫々凹穴4および突起5の軸線に対して傾斜した面であって、この画鋲 不使用時には頭部1とカバー3とが同軸になり、このとき凹穴4と突起5のカム面 41、51は互いに平行になって相互に密接する。そしてカバー3を針2から退避さ せると、突起5端面のカム面51は先端側が凹穴4の底のカム面41の浅い側に乗り 上げるので、カバー3は両脚が弾性的に広げられ、そのためカバー3には針2を カバーする方向に自動的に復帰させようとする力が働く。 このため画鋲を使うときは相手面にカバー3を当てゝ針2から退避させるよう にしながら相手面に針2を押し込めば良く、画鋲を抜けば自動的に針2の先端は カバー3でカバーされる。 【0008】 図2において凹穴4はカバー3の突起5を嵌め込み易いように、頭部1の側面 下端から凹穴4に向けて浅い溝42が形成してあり、溝42の下端は傾斜が付けて あって、カバー3の突起5をこの溝に沿って凹穴4に滑り込ませるようにすると 、カバー3の両脚が弾性的に広がられ、容易に頭部1とカバー3とを結合させる ことができる。 【0009】 図3に本考案の別実施形態を示す。この例は前例における凹穴4の底面と突起 5の端面をカムにしたのと異なり、凹穴4の外周表面と突起5の根本のカバー3 両脚内面をカム用の傾斜面44,53としたものである。これらのカム面は画鋲 不使用時に互いに平行となって相接し、使用時には互いのカム面が相手の高い側 と接触することで自動復帰力を発生するのである。 【0010】 上記各例では復帰力はカバー3の両脚の弾性から与えられるが、ばねのような 別部品を用いないで復帰力を与える方法は任意である。図4の例は頭部1の両側 の突起5の断面を縦長の形とし、コ字形のカバー3の両脚端近くにこの突起5が 納まる長円形の孔7を設け、脚端からこの孔に割り71を入れてある。 画鋲使用中はカバー3が針2から退避しているが、このとき頭部1の突起5と カバー3両側の長円形の孔7は長手方向が傾斜して突起5が孔7の割り71を広 げるようになっていることで、カバー3に復帰力が作用するようになっている。 画鋲を抜くと、この復帰力によりカバー3は針2の先をカバーする位置になり、 突起5と長円形の孔7とは長手方向が一致して落着く。 【0011】 【考案の効果】 本考案画鋲は針先カバーを有するので安全であり、特に画鋲を抜くと自動的に カバーが復帰して針先を覆うので、取扱いが簡単でカバーのし忘れがなく、安全 性が確実に高められる。[Detailed description of the invention] [0001] [Technical field to which the invention belongs] The present invention relates to a thumbtack that covers a needle tip when not in use. [0002] [Prior art] A normal thumbtack has a flat head with a needle on it, so if you drop it, the needle will turn upwards and it will be dangerous. It is steep. For this reason, the head is made three-dimensional so that the needle is lying down even if it is dropped It is commercially available. However, to make it more secure, the needle is A device in which the needle is sleeping when used has been proposed. [0003] [Problems to be solved by the invention] The above mentioned thumbtack that the needle can be turned upside down with respect to the head is safe, but the needle is turned upside down by hand. This is inconvenient to use because it must be done, and it is dangerous to forget to defeat the needle. In view of this point, the present invention automatically moves the needle cover to the side when inserting a thumbtack into the mating surface. When the thumbtack is removed, the cover automatically covers the needle, eliminating inconvenience and ensuring safety. It is intended to further improve the performance. [0004] [Means for Solving the Problems] A head with a three-dimensional knob-shaped needle insert molding and a horseshoe-shaped cover And a projection or a concave hole is provided on both sides of the head, and both leg ends of the horseshoe-shaped cover are provided. Providing a concave hole or projection on the inner surface that fits with the projection or concave hole on both sides of the head, The cover is rotatably connected to the head so that the head is sandwiched from both sides, and the head and the cover are In the above-mentioned joint part, the shape of the end face of the projection and the concave hole that fit each other is formed as a cam. When the bar is oriented perpendicular to the axis of the head (the axis of the needle), the cam The position where the cover covers elastically the needle (the needle shaft) (Parallel to the line). [0005] According to the above structure, the relation between the thumbtack head and the cover is that the cover covers the needle tip When the cover is in the stable position and the cover is retracted from the needle tip, the cover The cover automatically covers the needle tip if you pull out the thumbtack as you are going to return to the home position It is extremely safe. [0006] [Embodiment of the invention] FIG. 1 is an example of an embodiment of the present invention. FIG. 1A is a front view when not used, and FIG. It is a side view in a state. The feature of this invention is to push the thumbtack from the state of use shown in FIG. The point is that the state automatically shifts to the state of FIG. FIG. 2 shows the cover removed from the thumbtack head. In FIGS. 1 and 2, 1 is a thumbtack. The head 2 is attached to the head 1 with a needle by insert molding, and the cover 3 is a cover. is there. The head 1 is slightly flat and suitable for picking with fingers. On both sides of head 1 Has a concave hole 4, and the bottom of the concave hole is a cam surface 41. This cam surface Will be described later. The cover 3 is a horseshoe-shaped (or U-shaped) leg that holds the head 1 from both sides. It has a width, and projections 5 are respectively formed on the inside near the ends of both legs. Them The end surface of the projection is also a cam surface 51. The cover 3 is provided with the protrusions 5 on both sides of the head 1 To be rotatably attached to the head 1. As is clear from FIGS. 1 and 2, the cover 3 is coaxial with the 2 covers the tip and retracts from the needle tip when in use. [0007] The cam surface 41 at the bottom of the concave hole 4 of the head 1 and the cam surface 51 at the end surface of the projection 5 inside the cover 3 Are the surfaces inclined with respect to the axis of the concave hole 4 and the projection 5, respectively. When not used, the head 1 and the cover 3 are coaxial, and at this time, the cam surface of the concave hole 4 and the projection 5 41 and 51 are parallel to each other and are in close contact with each other. Then, retract the cover 3 from the needle 2 Then, the cam surface 51 at the end surface of the projection 5 is mounted on the shallow side of the cam surface 41 at the bottom of the concave hole 4 at the tip end side. As the cover 3 is raised, the legs of the cover 3 are elastically spread, so that the needle 2 is attached to the cover 3. A force acts to automatically return to the covering direction. For this reason, when using a thumbtack, apply cover 3 to the mating surface and retract from needle 2. Just push the needle 2 into the mating surface while the needle is in place. Covered by cover 3. [0008] In FIG. 2, the concave hole 4 has a side surface of the head 1 so that the protrusion 5 of the cover 3 can be easily fitted. A shallow groove 42 is formed from the lower end toward the concave hole 4, and the lower end of the groove 42 is inclined. Then, if the protrusion 5 of the cover 3 is slid into the concave hole 4 along this groove, , The two legs of the cover 3 are elastically spread so that the head 1 and the cover 3 can be easily connected. be able to. [0009] FIG. 3 shows another embodiment of the present invention. In this example, the bottom surface and the projection of the concave hole 4 in the previous example are shown. 5 is different from a cam at the end face, and the outer peripheral surface of the concave hole 4 and the cover 3 The inner surfaces of both legs are inclined surfaces 44 and 53 for the cam. These cam surfaces are thumbtack When not in use, they are parallel to each other and in contact with each other. An automatic return force is generated by contact with [0010] In each of the above examples, the return force is given by the elasticity of both legs of the cover 3, The method of giving a restoring force without using a separate part is arbitrary. The example of FIG. The cross section of the projection 5 is vertically elongated, and the projection 5 is formed near the two leg ends of the U-shaped cover 3. An oval hole 7 is provided to fit in, and a split 71 is inserted into this hole from the end of the leg. While the thumbtack is being used, the cover 3 is retracted from the needle 2, but at this time, the protrusion 5 of the head 1 The oblong hole 7 on both sides of the cover 3 is inclined in the longitudinal direction so that the projection 5 widens the slit 71 of the hole 7. As a result, a returning force acts on the cover 3. When the thumbtack is removed, the cover 3 will be in a position to cover the tip of the needle 2 due to this returning force, The projection 5 and the oval hole 7 are settled down in the longitudinal direction. [0011] [Effect of the invention] The thumbtack of the present invention has a needle tip cover, so it is safe. As the cover returns and covers the needle tip, it is easy to handle, so you do not forget to cover it and it is safe Sex is surely enhanced.
【図面の簡単な説明】
【図1】本考案の一実施形態の画鋲の不使用時の正面図
と使用時の側面図。
【図2】上記の要部の一部切欠拡大分解正面図。
【図3】本考案の他の実施形態における頭部下面図とカ
バー上面図。
【図4】本考案の更に他の実施形態の要部を示す側面
図。
【符号の説明】
1 頭部
2 針
3 カバ−
4 凹穴
5 突起
41 カム面
51 カム面BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view when a thumbtack is not used and a side view when it is used according to an embodiment of the present invention. FIG. 2 is a partially cutaway enlarged exploded front view of the main part. FIG. 3 is a bottom view of a head and a top view of a cover according to another embodiment of the present invention. FIG. 4 is a side view showing a main part of still another embodiment of the present invention. [Description of Signs] 1 head 2 needle 3 cover 4 concave hole 5 projection 41 cam surface 51 cam surface
Claims (1)
カバーよりなり、上記頭部両側面と上記カバーの両脚の
端部内側面とに相互に係合してカバーを頭部に回動可能
に取付けるための凹穴と突起とを形成し、これら凹穴と
突起またはそれらの周囲にカム面を設けて、このカム面
の相互接触で、カバーを退避させたとき、カバーに針先
を覆う方へ復帰する復帰力が生じるようにした安全画
鋲。Claims: A utility model registration claim 1. A thumbtack head having a needle and a horseshoe-shaped or U-shaped cover, which are mutually engaged with both side surfaces of the head and inner surfaces of both ends of the legs of the cover. Forming a concave hole and a projection for rotatably mounting the cover on the head, and providing a cam surface around the concave hole and the projection or around them, and retreating the cover by mutual contact of the cam surfaces. A safety thumbtack that generates a return force on the cover that returns to the direction where the needle tip is covered.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002007574U JP3094359U (en) | 2002-11-28 | 2002-11-28 | Safety thumbtack |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002007574U JP3094359U (en) | 2002-11-28 | 2002-11-28 | Safety thumbtack |
Publications (1)
Publication Number | Publication Date |
---|---|
JP3094359U true JP3094359U (en) | 2003-06-13 |
Family
ID=43248340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002007574U Expired - Lifetime JP3094359U (en) | 2002-11-28 | 2002-11-28 | Safety thumbtack |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3094359U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH078125U (en) * | 1993-07-07 | 1995-02-03 | 株式会社村上開明堂 | Water droplet removal control device |
-
2002
- 2002-11-28 JP JP2002007574U patent/JP3094359U/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH078125U (en) * | 1993-07-07 | 1995-02-03 | 株式会社村上開明堂 | Water droplet removal control device |
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