JP2888148B2 - Driving pin - Google Patents
Driving pinInfo
- Publication number
- JP2888148B2 JP2888148B2 JP22885894A JP22885894A JP2888148B2 JP 2888148 B2 JP2888148 B2 JP 2888148B2 JP 22885894 A JP22885894 A JP 22885894A JP 22885894 A JP22885894 A JP 22885894A JP 2888148 B2 JP2888148 B2 JP 2888148B2
- Authority
- JP
- Japan
- Prior art keywords
- pin
- guide member
- plywood
- driving
- tip
- 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
- Portable Nailing Machines And Staplers (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、一般に動力作動工具と
くにピストン型の動力作動工具において使用される打ち
込みピンに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates generally to driving tools used in power tools, and more particularly to power tools of the piston type.
【０００２】[0002]
【従来技術】従来技術として特公昭４６−７６７号にて
開示されている締着具が上げられる。この締着具は図３
に示すように拡径した頭部１２を有するピン１１に、拡
径したフランジ部１７と筒状部１６で形成された案内部
材１５を軸部２０に圧入嵌合した締着具であり、該締着
具を動力工具にて被部材へ打ち込んだ時、前記案内部材
の筒状部１６がピンの頭部１１の座面にて押し潰されて
緩衝材の役目を果たし、動力工具および被部材の破損を
防止するものである。しかしながら、図４に示すように
木製合板９を厚鋼板１０へ締結するときに上記締着具を
使用すると問題が生じる。すなわち、動力作動工具にて
上記部材に締着具を使用し打ち込みを行うと、まず、案
内部材１５が木製合板１９の表面で停止し、そして案内
部材１５のフランジ部１７が木製合板９内へ進入する力
よりピン１１と案内部材１５との圧入嵌合した力の方が
小さいために、さらなる打ち込みにより前記圧入嵌合が
解除されてピン１１のみが木製合板９内に進入する。こ
のとき案内部材１５は打ち込みピン１１に対し、心出し
および案内装置としてはたらく。その後ピン１１の頭部
１９の下部が案内部材１６の筒状部１６の上端部と接し
た後は、ピン１１は案内部材１５を木製合板９内へ押し
込み進入させる。このとき被部材が木製合板のように比
較的軟質な部材だと上記筒状部１６は押し潰されず、フ
ランジ部１７が合板１９を押し潰し破壊しながら鋼板部
２１まで達してしまうために、フランジ部１７の進入後
は空間部１８が形成される。このように本来打ち込みピ
ンの拡径した頭部１９で保持する箇所が無くなってしま
うために、締着具による合板の保持力は著しく低下し、
よって両部材の締結が不完全となり、接合強度が過度に
不足するか、もしくは無くなってしまうという問題点が
あった。2. Description of the Related Art A fastener disclosed in Japanese Patent Publication No. 46-767 is known as a prior art. This fastener is shown in FIG.
As shown in FIG. 1, a fastening tool in which a guide member 15 formed by an expanded flange portion 17 and a cylindrical portion 16 is press-fitted to a shaft portion 20 on a pin 11 having a head portion 12 whose diameter has been increased. When the fastener is driven into the member by the power tool, the cylindrical portion 16 of the guide member is crushed by the seating surface of the head 11 of the pin to serve as a cushioning material. It is intended to prevent breakage. However, when the wooden plywood 9 is fastened to the thick steel plate 10 as shown in FIG. That is, when a driving tool is used to drive the above member with a fastener, first, the guide member 15 stops on the surface of the wooden plywood 19, and the flange portion 17 of the guide member 15 is inserted into the wooden plywood 9. Since the force of press-fitting between the pin 11 and the guide member 15 is smaller than the force of entering, the press-fitting is released by further driving, and only the pin 11 enters into the wooden plywood 9. At this time, the guide member 15 functions as a centering and guiding device for the driving pin 11. After that, after the lower part of the head 19 of the pin 11 contacts the upper end of the tubular part 16 of the guide member 16, the pin 11 pushes the guide member 15 into the wooden plywood 9 to enter. At this time, if the member to be covered is a relatively soft member such as a wooden plywood, the cylindrical portion 16 is not crushed, and the flange portion 17 crushes and breaks the plywood 19 to reach the steel plate portion 21. After the part 17 enters, a space part 18 is formed. As described above, since there is no longer a place to be held by the enlarged head 19 of the driving pin, the holding force of the plywood by the fastening tool is significantly reduced,
Therefore, there has been a problem that the fastening of both members is incomplete, and the joining strength is excessively insufficient or lost.
【０００３】[0003]
【発明が解決しようとする課題】本発明の目的は、上記
問題点を鑑み、合板を厚鋼板に締結するときに、ピンを
被打ち込み部材に対して垂直に保持し、かつ合板を極力
破壊せずに強固な接合力で締結できる、打ち込みピンを
提供することである。SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to hold a pin perpendicular to a member to be driven and to break the plywood as much as possible when fastening the plywood to a thick steel plate. It is an object of the present invention to provide a driving pin which can be fastened with a strong joining force without using a driving pin.
【０００４】[0004]
【課題を解決するための手段】本発明は、拡径した頭部
より先端部へ向かって、円柱状の軸部が形成され、さら
に先端部にかけてテーパー状に縮径した先端部が形成し
たピンに、前記軸部より先端部に向かって筒状部を形成
し、該筒状部の先端に軸部と直角で、かつピン先端部近
辺に拡径したフランジ部を形成した案内部材を圧入嵌合
した打ち込みピンにおいて、フランジ部外周に、フラン
ジ部外周から筒状部外周に達する、少なくとも３ヶ所以
上の切り込みを円周方向に均等に形成したことを特徴と
する打ち込みピンを提供することである。According to the present invention, there is provided a pin having a cylindrical shaft portion formed from a head portion having an enlarged diameter toward a tip portion, and a tapered tip portion having a tapered diameter formed at the tip portion. A guide member having a cylindrical portion formed from the shaft portion toward the distal end portion and a flange portion formed at the distal end of the cylindrical portion at right angles to the shaft portion and having an enlarged diameter near the tip of the pin. It is an object of the present invention to provide a driving pin in which at least three or more cuts extending from the outer circumference of the flange to the outer circumference of the cylindrical portion are uniformly formed in the circumferential direction of the combined driving pin. .
【０００５】[0005]
【作用】上記のように構成された打ち込みピンを被部材
に打ち込むと、まず、案内部材２が木製合板９の表面に
接地し、この接地時に、軸部と直角に配置されたフラン
ジ部７が形成された案内部材２は合板９と打ち込みネジ
とを直角に保持、案内する。さらに打ち込まれることに
より前記案内部材２は木製合板９の表面で停止し、ピン
１のみが木製合板９及び厚鋼板１０中へ進入する。そし
て頭部２の座面が案内部材２の上端部に接触後、案内部
材２はピン１と連動して木製鋼板９内に進入する。この
とき、フランジ部７には切り込み８を形成させて、各々
のフランジ８ａが単独で折り曲がり易く形成されている
ために、進入時の木製合板９との抵抗によりフランジ８
ａが進入方向とは逆方向に折り曲がり、その後は、進入
時の木製合板の拡開および破壊を極力抑えながら進入
し、図２（ｂ）の状態で打ち込みを終了する。When the driving pin configured as described above is driven into a member to be driven, first, the guide member 2 is grounded on the surface of the wooden plywood 9, and at the time of the grounding, the flange portion 7 arranged at a right angle to the shaft portion is turned on. The formed guide member 2 holds and guides the plywood 9 and the driving screw at right angles. By being driven further, the guide member 2 stops on the surface of the wooden plywood 9, and only the pin 1 enters into the wooden plywood 9 and the thick steel plate 10. After the bearing surface of the head 2 contacts the upper end of the guide member 2, the guide member 2 enters the wooden steel plate 9 in conjunction with the pin 1. At this time, a notch 8 is formed in the flange portion 7, and each flange 8a is formed so as to be easily bent independently.
a is bent in the direction opposite to the approaching direction, and then enters while minimizing the expansion and destruction of the wooden plywood during the approach, and the driving is completed in the state of FIG.
【０００６】[0006]
【実施例】以下本発明の一実施例を詳述する。図１
（ａ）に示すように、本発明の打ち込みピンは円形の拡
径した頭部３から先端部へ向かって円柱状の軸部４が形
成され、さらに先端部にかけてテーパー状に縮径して先
細り部５を形成した硬質な金属でできているピンに、前
記軸部より先端部に向かって筒状部６を形成し、該筒状
部の先端にピン軸部と直角方向に広がったフランジ部７
を形成したアルミ等の軟質な金属でできた案内部材２を
圧入嵌合して形成されている。そして上記フランジ部
は、ピン１の先端付近に配置されるように装着される。
また、フランジ部７の外周縁から前記筒状部６の外周部
に向かって、３ヶ所の切り込み８がフランジの円周方向
に均等に形成され、これによって３ヶ所の独立したフラ
ンジ８ａが円周方向に均等に形成されている。An embodiment of the present invention will be described below in detail. FIG.
As shown in (a), the driving pin according to the present invention has a cylindrical shaft portion 4 formed from a head portion 3 having a circular enlarged diameter to a tip portion, and further tapered and tapered toward the tip portion. A cylindrical portion 6 is formed on the pin made of hard metal forming the portion 5 from the shaft portion toward the distal end, and a flange portion is formed at the distal end of the cylindrical portion and extends in a direction perpendicular to the pin shaft portion. 7
Is formed by press-fitting a guide member 2 made of a soft metal such as aluminum. The flange portion is mounted so as to be disposed near the tip of the pin 1.
Further, three notches 8 are formed uniformly in the circumferential direction of the flange from the outer peripheral edge of the flange portion 7 toward the outer peripheral portion of the cylindrical portion 6, thereby forming three independent flanges 8a. It is formed evenly in the direction.
【０００７】上記打ち込みピンの打ち込み時の状態を図
２で説明する。まず、空気圧等の流体圧力によりピスト
ンを瞬間的に作動させ、ピストンに連設したドライバ先
端部でピン頭部を打撃しピンを被部材に打ち込む動力作
動工具で本発明の打ち込みネジを合板９に向かって発射
させる。図２（ａ）は、発射後打ち込みネジが合板９に
接地したときの図である。このあと案内部材２のフラン
ジ部７が木製合板９内へ進入する力よりもピン１と案内
部材２との圧入嵌合した力の方が小さいために、さらな
る打ち込みによりピン１と案内部材２との圧入嵌合が解
除されてピン１のみが木製合板９内に進入する。このと
き案内部材２は木製合板９の表面に停止し、打ち込みピ
ン１を木製合板９に対し直角に保持して先端部５の曲が
りを防止する役目を果たす。その後ピン１の頭部３の下
部が案内部材２の筒状部６の上端部と接した後、両部材
は再び連動し、木製合板９内へ進入していく。そして、
前記進入時、案内部材２のフランジ部７は木製合板材の
抵抗により独立した各フランジ８ａが進入方向とは逆方
向に筒状部６の外周部を起点にして折り曲がる。この理
由は、フランジ部７に切り込み８を形成させて、各々の
フランジ８ａが単独で折り曲がり易く形成されているた
めであり、各フランジ８ａが合板の抵抗により折り曲げ
られる力は、筒状部６が木製合板９の表面部と頭部３と
の間で押し潰される力より、小さく設定されている。そ
の後、折り曲げられたフランジ８ａを擁した案内部材２
は木製合板の拡開および破壊を極力抑えながら進入し、
図２（ｂ）の状態で打ち込みを終了する。上記実施例で
は、フランジ部７の外周から前記筒状部６の外周部に向
かって、３ヶ所の切り込み８が円周方向に均等に形成さ
れているために切り込みの内角αは１２０゜に設定して
いるがこの角度は前記角度に限定されない。例えば前記
内角が０゜近辺として、つまるところフランジ部外周か
ら筒状部へ線状の切り込みとしても本発明の目的が達成
できる。The state when the driving pin is driven will be described with reference to FIG. First, the piston is instantaneously actuated by fluid pressure such as air pressure, and the driving screw of the present invention is applied to the plywood 9 with a power-operated tool that strikes the pin head with the driver tip connected to the piston and drives the pin into the member to be worked. Fire at it. FIG. 2A is a view when the driving screw is grounded to the plywood 9 after firing. Thereafter, since the force of press-fit between the pin 1 and the guide member 2 is smaller than the force of the flange portion 7 of the guide member 2 entering the wooden plywood 9, the pin 1 and the guide member 2 are further driven into Is released, and only the pin 1 enters the wooden plywood 9. At this time, the guide member 2 stops on the surface of the wooden plywood 9 and serves to prevent the bending of the tip 5 by holding the driving pin 1 at right angles to the wooden plywood 9. After that, the lower part of the head 3 of the pin 1 comes into contact with the upper end of the cylindrical part 6 of the guide member 2, and then the two members move together and enter the wooden plywood 9. And
At the time of the entry, the flange portion 7 of the guide member 2 bends from the outer peripheral portion of the cylindrical portion 6 in a direction opposite to the entry direction so that the independent flanges 8a are bent by the resistance of the wooden plywood material. The reason for this is that the notches 8 are formed in the flange portions 7 so that each of the flanges 8a is formed so as to be easily bent independently. Is set smaller than the force of crushing between the surface of the wooden plywood 9 and the head 3. Thereafter, the guide member 2 having the bent flange 8a
Enters while minimizing the spread and destruction of wooden plywood,
The driving is ended in the state of FIG. In the above embodiment, since three cuts 8 are uniformly formed in the circumferential direction from the outer periphery of the flange portion 7 to the outer peripheral portion of the cylindrical portion 6, the inner angle α of the cut is set to 120 °. However, this angle is not limited to the above angle. For example, the object of the present invention can be achieved even when the internal angle is around 0 ° and a linear cut is formed from the outer periphery of the flange portion to the cylindrical portion.
【０００７】[0007]
【発明の効果】本発明によれば、下記の効果がある。打
ち込み時に、案内部材が被部材に対してピンを垂直に保
持するので、ピン先端部の曲がりや座屈を防止できる。
また、合板を厚鋼板に締結するとき、フランジ部の切り
込みで区画された各部が独立して、合板内で打ち込み方
向とは逆側に折り曲げられるため、フランジ部が合板に
進入する断面が小さくなって合板の破壊を極力抑えるこ
とができ、従来品と比べると強固な接合力で締結でき
る。According to the present invention, the following effects can be obtained. Since the guide member holds the pin vertically with respect to the member to be driven at the time of driving, bending or buckling of the pin tip can be prevented.
Further, when the plywood is fastened to the thick steel plate, each section defined by the cut of the flange portion is independently bent in the plywood in a direction opposite to the driving direction, so that a cross section in which the flange portion enters the plywood is reduced. As a result, plywood can be prevented from breaking as much as possible, and can be fastened with a stronger joining force than conventional products.
図１ 本発明の側面図と底面図。 図２（ａ） 本発明の打ち込み前の断面図。 図２（ｂ） 本発明の打ち込み後の断面図。 図３ 従来の打ち込みピンの側面図と底面図。 図４ 従来の打ち込みピンによる打ち込み後の
断面図。1 side and bottom views of the present invention. FIG. 2A is a cross-sectional view of the present invention before driving. FIG. 2B is a cross-sectional view of the present invention after implantation. FIG. 3 A side view and a bottom view of a conventional driving pin. FIG. 4 is a cross-sectional view after driving by a conventional driving pin.
【符号の説明】 １ ピン ２ 案内部材 ３ 頭部 ４ 軸部 ５ 先端部 ６ 筒状部 ７ フランジ部 ８ 切り込み ９ 合板 １０ 厚鋼板 １１ ピン １５ 案内部材 １６ 筒状部 １７ フランジ部 １８ 空間部 １９ 頭部 ２０ 軸部 ２１ 先端部[Description of Signs] 1 Pin 2 Guide member 3 Head 4 Shaft 5 Tip 6 Cylindrical part 7 Flange 8 Cut 9 Plywood 10 Thick steel plate 11 Pin 15 Guide member 16 Cylindrical part 17 Flange part 18 Space part 19 Head Part 20 Shaft part 21 Tip
Claims (1)
て、円柱状の軸部（４）が形成され、さらに先端部にか
けてテーパー状に縮径した先端部（５）が形成したピン
（１）に、前記軸部より先端部に向かって筒状部（６）
を形成し、該筒状部の先端に軸部（４）と直角で、かつ
ピン先端部近辺に拡径したフランジ部（７）を形成した
案内部材（２）を圧入嵌合した打ち込みピンにおいて、 フランジ部外周に、フランジ部外周から筒状部外周に達
する、少なくとも３ヶ所以上の切り込み（８）を円周方
向に均等に形成したことを特徴とする打ち込みピン。1. A cylindrical shaft portion (4) is formed from a head portion (3) having an enlarged diameter to a front end portion, and a front end portion (5) having a tapered diameter is formed toward the front end portion. A cylindrical portion (6) is attached to the pin (1) from the shaft portion toward the tip.
And a guide member (2) press-fitted with a guide member (2) formed at the tip of the cylindrical portion at a right angle with the shaft portion (4) and formed with an enlarged flange portion (7) near the tip of the pin. A driving pin characterized in that at least three or more notches (8) extending from the outer periphery of the flange portion to the outer periphery of the cylindrical portion are formed in the outer periphery of the flange portion uniformly in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22885894A JP2888148B2 (en) | 1994-08-30 | 1994-08-30 | Driving pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22885894A JP2888148B2 (en) | 1994-08-30 | 1994-08-30 | Driving pin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0874824A JPH0874824A (en) | 1996-03-19 |
| JP2888148B2 true JP2888148B2 (en) | 1999-05-10 |
Family
ID=16882993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22885894A Expired - Lifetime JP2888148B2 (en) | 1994-08-30 | 1994-08-30 | Driving pin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2888148B2 (en) |
-
1994
- 1994-08-30 JP JP22885894A patent/JP2888148B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0874824A (en) | 1996-03-19 |
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