JP2005321099A - Articulated structure of rod - Google Patents

Articulated structure of rod Download PDF

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JP2005321099A
JP2005321099A JP2005171480A JP2005171480A JP2005321099A JP 2005321099 A JP2005321099 A JP 2005321099A JP 2005171480 A JP2005171480 A JP 2005171480A JP 2005171480 A JP2005171480 A JP 2005171480A JP 2005321099 A JP2005321099 A JP 2005321099A
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rod
rib
rotation
notch
engagement
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JP4589815B2 (en
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Makoto Kato
誠 加藤
Kazuyuki Tomioka
和幸 富岡
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Kao Corp
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Kao Corp
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  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To enable a first rod and a second rod to be coupled to each other without backlash when coupling them with male and female engagement. <P>SOLUTION: An articulated structure is constituted by the male and female engagement of the first rod 10 and the second rod 20. A rib 23 for preventing rotation is provided on one side of the second rod 20, and a notch 12 for preventing rotation is provided on one side of the first rod 10. The instant when an engagement protrusion 33 of the first rod 10 is engaged with an engagement hole 21 of the second rod 20, the rib 23 for preventing rotation of the second rod 20 and the notch 12 for preventing rotation of the first rod 10 are made possible to be engaged with each other at least in the circumference of both of the rods 10, 20. Then at the time of the engagement of the rib 23 for preventing rotation and the notch 12 for preventing rotation, at least an edge on one side of the rib 23 for preventing rotation is brought into collision with an opening edge of the notch 12 for preventing rotation. Then the collision surfaces of the rib 23 and the notch 12 are constituted by being deformed and/or cut away by each other, thus they can be engaged with each other without clearance in the circumference. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明はロッドの連結構造に関する。   The present invention relates to a connecting structure of rods.

掃除具の柄、つえの柄等のロッドの連結構造として、特許文献1、2に記載の如く、第1ロッドと第2ロッドを雄雌嵌合して連結するに際し、第1ロッドの径方向に弾発される係合突起を該第1ロッドの周面に設けるとともに、第2ロッドの周面に第1ロッドの係合突起が嵌合係止する係合孔と、該係合突起を案内するように先端縁部から係合孔に延在されるガイド溝を設けたものがある。第1ロッドの係合突起を第2ロッドのガイド溝によって押上げつつ案内して第2ロッドの係合孔に弾発的に嵌合係止することで、両ロッドを連結するものである。
特開2001-317513 特開2003-102664
When connecting the first rod and the second rod by male-female connection as described in Patent Documents 1 and 2, as the connecting structure of the rod of the cleaning tool handle, the handle handle, etc., the radial direction of the first rod An engagement protrusion that is repelled by the first rod is provided on the peripheral surface of the first rod, and an engagement hole that engages and locks the engagement protrusion of the first rod on the peripheral surface of the second rod; Some of them are provided with a guide groove extending from the front edge portion to the engagement hole so as to be guided. Both rods are connected by guiding the engaging protrusion of the first rod while pushing it up by the guide groove of the second rod and elastically engaging and locking it in the engaging hole of the second rod.
JP2001-317513 JP2003-102664

特許文献1、2の従来技術には以下の問題点がある。
(1)第1ロッドと第2ロッドは、それらの係合突起と係合孔の嵌合係止により連結状態が維持されるものであるが、嵌合関係にある突起と孔の間には必然的に隙間を伴なう。このため、第1ロッドと第2ロッドは、連結状態で、それらの隙間に基づく軸方向及び周方向のガタを生ずる。
The conventional techniques of Patent Documents 1 and 2 have the following problems.
(1) The first rod and the second rod are maintained in the connected state by the engagement locking of the engagement protrusions and the engagement holes, but between the protrusions and the holes in the engagement relationship. Inevitably with a gap. For this reason, the 1st rod and the 2nd rod produce the play of the axial direction and the circumferential direction based on those gaps in the connected state.

(2)第1ロッドの係合突起は第2ロッドのガイド溝によって押上げられて弾発力をためた後、第2ロッドの係合孔に弾発的に嵌合係止する。このため、係合孔に対する係合突起の係入深さは、係合突起がガイド溝を押上げられてこれを乗り越える高さより大きくすることができず、比較的小さい。これによっても、第1ロッドと第2ロッドは、連結状態で、それらの軸方向及び周方向にガタを生じ易い。   (2) The engaging protrusion of the first rod is pushed up by the guide groove of the second rod and accumulates an elastic force, and then is elastically fitted and locked into the engaging hole of the second rod. For this reason, the engagement depth of the engagement protrusion with respect to the engagement hole cannot be made larger than the height at which the engagement protrusion pushes up the guide groove and gets over the guide groove, and is relatively small. Also by this, the 1st rod and the 2nd rod are easy to produce backlash in those axial directions and the peripheral direction in a connection state.

本発明の課題は、第1ロッドと第2ロッドを雄雌嵌合して連結するに際し、両ロッドをガタなく連結することにある。   An object of the present invention is to connect both rods without play when the first rod and the second rod are connected by male-female connection.

請求項1の発明は、第1ロッドと第2ロッドを雄雌嵌合して連結するに際し、第1ロッドの径方向に弾発される係合突起を該第1ロッドの周面に設けるとともに、第2ロッドの周面に第1ロッドの係合突起が嵌合係止する係合孔と、該係合突起を案内するように先端縁部から係合孔に延在されるガイド溝を設けたロッドの連結構造であって、第1ロッドの回り止め用切欠を、第2ロッドに回り止め用リブを設け、第1ロッドの係合突起が第2ロッドの係合孔に嵌合係止したと同時に、第2ロッドの回り止め用リブと第1ロッドの回り止め用切欠を両ロッドの少なくとも周方向で互いに係合可能にし、回り止め用リブと回り止め用切欠を係合する際に、回り止め用リブの少なくとも片側エッジが回り止め用切欠の開口エッジに衝突するように設定し、それらの衝合面を変形及び/又は削り合って周方向で隙間なく係合可能にしたものである。   According to the first aspect of the present invention, when the first rod and the second rod are connected to each other by male-female connection, an engagement protrusion that is repelled in the radial direction of the first rod is provided on the peripheral surface of the first rod. An engaging hole in which the engaging protrusion of the first rod is fitted and locked on the peripheral surface of the second rod, and a guide groove extending from the tip edge portion to the engaging hole so as to guide the engaging protrusion. The rod connecting structure is provided with a notch for preventing rotation of the first rod, a rib for preventing rotation on the second rod, and the engaging protrusion of the first rod engaging with the engaging hole of the second rod. At the same time as stopping, when the non-rotating rib of the second rod and the non-rotating notch of the first rod can be engaged with each other at least in the circumferential direction, the non-rotating rib and the non-rotating notch are engaged. The at least one edge of the anti-rotation rib is set to collide with the opening edge of the anti-rotation notch. And it is obtained by the engageable without clearance with modified their abutment surfaces and / or scraping each other in the circumferential direction.

(実施例1)
図1は掃除具の柄の一部を構成する第1ロッド10と第2ロッド20を、第1ロッド10に設けた連結具30の介在下で、互いに挿入し、雄雌嵌合して連結するものである。尚、第2ロッド20は柄の先端部分を構成するものであって掃除ヘッド取付部20Aを備える。
(Example 1)
FIG. 1 shows that a first rod 10 and a second rod 20 constituting a part of a handle of a cleaning tool are inserted into each other through a coupling tool 30 provided on the first rod 10, and are connected by male and female fitting. To do. In addition, the 2nd rod 20 comprises the front-end | tip part of a handle | pattern, and is provided with the cleaning head attaching part 20A.

第1ロッド10は、パイプ材からなり、図2(A)に示す如く、パイプ材の一端側の周壁に連結具30のための取付孔11を貫通させて備えるとともに、パイプ材の一端側の先端縁部の周方向複数位置(本実施例では180度間隔をなす2位置、但し単一位置でも可)に回り止め用切欠12を設けてある。回り止め用切欠12は軸方向の外方に向けて開くU字状をなす。   The first rod 10 is made of a pipe material, and as shown in FIG. 2A, the first rod 10 is provided with a peripheral wall on one end side of the pipe material penetrating the attachment hole 11 for the connector 30, and on the one end side of the pipe material. Non-rotating cutouts 12 are provided at a plurality of circumferential positions on the front end edge (in this embodiment, two positions spaced apart by 180 degrees, but a single position is also acceptable). The non-rotating notch 12 has a U-shape that opens outward in the axial direction.

第1ロッド10に組付けられる連結具30は、図2(B)に示す如く、概ね全体ストレート状(ストレート部30A)をなし、基端側の概ね半周部分に軸方向の外方に向けてテーパ状に拡開する拡開部31を備えた短筒材からなる。連結具30は、基端側の内周であって、拡開部31に相対するストレート部30Aの内面に係合突起33を備える。連結具30は、ストレート部30Aの周方向における係合突起33の対向部を通り、ストレート部30Aの全長に渡るスリット34を備える。連結具30は、係合突起33を取付孔11に嵌合する状態で、第1ロッド10の一端側の外周に組付けられる。連結具30は、第1ロッド10に組付けられた自由状態で、スリット34により割られた両側壁の弾発的な縮径習性により第1ロッド10の外周に概ね隙間なく抱き着き、係合突起33を取付孔11から第1ロッド10の径方向の内方に突出し、拡開部31を第1ロッド10の外周面から離隔する(図3)。   As shown in FIG. 2 (B), the connector 30 assembled to the first rod 10 has a generally straight shape (straight portion 30A) and is directed outward in the axial direction to a substantially half-circumferential portion on the base end side. It consists of a short cylinder material provided with the expansion part 31 expanded in a taper shape. The connector 30 is provided with an engagement protrusion 33 on the inner surface of the straight portion 30 </ b> A that is the inner periphery on the proximal end side and that faces the spread portion 31. The connector 30 includes a slit 34 that passes through the opposing portion of the engaging protrusion 33 in the circumferential direction of the straight portion 30A and extends over the entire length of the straight portion 30A. The connector 30 is assembled to the outer periphery on the one end side of the first rod 10 in a state where the engagement protrusion 33 is fitted in the attachment hole 11. The connector 30 is engaged with the outer periphery of the first rod 10 in a free state assembled to the first rod 10 by the elastic diameter reduction behavior of both side walls divided by the slits 34 with almost no gap. The protrusion 33 protrudes inward in the radial direction of the first rod 10 from the mounting hole 11, and the widened portion 31 is separated from the outer peripheral surface of the first rod 10 (FIG. 3).

連結具30は、第1ロッド10に組付けられた状態で、拡開部31が第1ロッド10の外周面に引き寄せられると、スリット34を挟む両側壁を第1ロッド10の外周に抱き着かせたまま弾性的に拡幅変形し、係合突起33の取付孔11から第1ロッド10の径方向の内方への突出量を減じ、同時に該係合突起33を取付孔11から第1ロッド10の径方向の内方へ再び突出させようとする弾発力を一時的に貯える(図5)。即ち、第1ロッド10は、連結具30が組付けられた状態で、径方向の内方に弾発される係合突起33を該第1ロッド10の内周面に備えるものになる。   When the expanding portion 31 is drawn to the outer peripheral surface of the first rod 10 in the state of being assembled to the first rod 10, the connecting tool 30 holds both side walls sandwiching the slit 34 to the outer periphery of the first rod 10. It is elastically widened and deformed as it is, and the amount of protrusion of the engaging protrusion 33 from the mounting hole 11 inward in the radial direction of the first rod 10 is reduced. At the same time, the engaging protrusion 33 is moved from the mounting hole 11 to the first rod. The elastic force to be projected again inward in the radial direction of 10 is temporarily stored (FIG. 5). In other words, the first rod 10 is provided with the engagement protrusion 33 that is elastically urged inward in the radial direction on the inner peripheral surface of the first rod 10 in a state where the connector 30 is assembled.

第2ロッド20は、パイプ材からなり、図2(C)に示す如く、第1ロッド10の係合突起33が嵌合係止する係合孔21をパイプ材の一端側の周壁に貫通して備えるとともに、係合突起33を案内するように先端縁部から係合孔21にまで延在されるガイド溝22を外周面に備える。ガイド溝22の溝幅は、係合突起33の横幅(第1ロッド10の周方向に沿う幅)をガタなく嵌合し得る大きさに設定される。ガイド溝22は、第1ロッド10と第2ロッド20の挿入過程で、係合突起33を径方向の外方に徐々に変位させ得る(拡開部31は第1ロッド10の外周面に徐々に引き寄せられる)テーパ状の溝底面を備える(図5)。   The second rod 20 is made of a pipe material, and, as shown in FIG. 2C, penetrates the engagement hole 21 into which the engagement protrusion 33 of the first rod 10 is fitted and locked into the peripheral wall on one end side of the pipe material. And a guide groove 22 extending from the tip edge portion to the engagement hole 21 so as to guide the engagement protrusion 33 is provided on the outer peripheral surface. The groove width of the guide groove 22 is set to a size that allows the lateral width of the engagement protrusion 33 (the width along the circumferential direction of the first rod 10) to be fitted without play. The guide groove 22 can gradually displace the engaging protrusion 33 outward in the radial direction during the insertion process of the first rod 10 and the second rod 20 (the expanding portion 31 is gradually formed on the outer peripheral surface of the first rod 10. A tapered groove bottom surface (FIG. 5).

第2ロッド20は、パイプ材の一端側の係合孔21より奥側(先端縁部から軸方向に離れる側)の外周面の周方向複数位置(本実施例では180度間隔をなす2位置、但し単一位置でも可)に突条の回り止め用リブ23を設けてある。回り止め用リブ23は、第1ロッド10のU字状回り止め用切欠12に隙間なく嵌まるU字状をなす。これにより、第1ロッド10の係合突起33が第2ロッド20の係合孔21に嵌合係止したと同時に、両ロッド10、20の回り止め用切欠12と回り止め用リブ23が両ロッド10、20の軸方向及び周方向で互いに係合可能になるように設定される。   The second rod 20 has a plurality of circumferential positions on the outer peripheral surface (side away from the tip edge in the axial direction) from the engagement hole 21 on one end side of the pipe material (two positions spaced 180 degrees in this embodiment). However, a rib 23 for preventing rotation of the ridge is provided at a single position). The anti-rotation rib 23 has a U-shape that fits in the U-shaped anti-rotation notch 12 of the first rod 10 without a gap. As a result, the engagement protrusion 33 of the first rod 10 is fitted and locked in the engagement hole 21 of the second rod 20, and at the same time, the non-rotation notch 12 and the rotation prevention rib 23 of both the rods 10, 20 are both The rods 10 and 20 are set so as to be able to engage with each other in the axial direction and the circumferential direction.

回り止め用リブ23は、回り止め用切欠12と少なくとも周方向で係合し合う形状であれば良いが、図7(A)に示す如く、回り止め用切欠12に挿入される先端面を円弧状としたり、先端に向って横幅を狭くする(テーパ状)ことができる。また、回り止め用リブ23は、図7(B)に示す如く、横断面視で、上面よりも底面を広幅とすることもできる。   The anti-rotation rib 23 may have any shape that engages with the anti-rotation notch 12 at least in the circumferential direction. However, as shown in FIG. It can be arcuate, or the lateral width can be narrowed (tapered) toward the tip. Further, as shown in FIG. 7B, the rotation-preventing rib 23 can have a bottom surface wider than the top surface in a cross-sectional view.

回り止め用リブ23としては、両者の嵌合面が少なくとも周方向で隙間なく嵌合するものであれば、両者の嵌合面が全面密着していても、密着していなくても良い。また、回り止め用リブ23としては、両者の嵌合面の加工精度に多少の誤差があっても周方向で隙間なく嵌合し合う。また、回り止め用リブ23としては、両者の嵌合面を互いにすり合わせて削り合い、又は弾性変形させあって周方向で隙間なく嵌合し合う。   As the anti-rotation rib 23, the fitting surfaces of the both may or may not be in close contact as long as the fitting surfaces of the both are fitted at least in the circumferential direction with no gap. Further, the rotation-preventing rib 23 can be fitted with no gap in the circumferential direction even if there is a slight error in the processing accuracy of the fitting surfaces of both. Further, as the rotation preventing rib 23, the fitting surfaces of the two are rubbed together and scraped together or elastically deformed to fit together without any gap in the circumferential direction.

従って、第1ロッド10と第2ロッド20は以下の手順で連結される。
(1)連結具30が組付けられた第1ロッド10を第2ロッド20に挿入する(図3、図4)。第1ロッド10の係合突起33の先端斜面33Aと第2ロッド20のガイド溝22の溝底の先端斜面22Aが接触することで(図4)、係合突起33がガイド溝22に案内開始され、第1ロッド10と第2ロッド20が周方向で位置合せされる。
Therefore, the 1st rod 10 and the 2nd rod 20 are connected in the following procedures.
(1) Insert the first rod 10 to which the connector 30 is assembled into the second rod 20 (FIGS. 3 and 4). When the tip inclined surface 33A of the engaging protrusion 33 of the first rod 10 and the tip inclined surface 22A of the groove bottom of the guide groove 22 of the second rod 20 come into contact with each other (FIG. 4), the engaging protrusion 33 starts guiding to the guide groove 22. Then, the first rod 10 and the second rod 20 are aligned in the circumferential direction.

(2)第1ロッド10と第2ロッド20を軸方向に押し進めると、第1ロッド10の係合突起33は第2ロッド20のガイド溝22のテーパ状溝底面にのって徐々に押上げられて弾発力をためた後、該溝底面を乗り越えて第2ロッド20の係合孔21に弾発的に落ち込み、嵌合係止する(図5、図6)。   (2) When the first rod 10 and the second rod 20 are pushed in the axial direction, the engagement protrusion 33 of the first rod 10 is gradually pushed up on the tapered groove bottom surface of the guide groove 22 of the second rod 20. Then, after accumulating the elastic force, it climbs over the groove bottom surface and elastically falls into the engagement hole 21 of the second rod 20 and is engaged and locked (FIGS. 5 and 6).

(3)上述(2)で、第1ロッド10の係合突起33が第2ロッド20の係合孔21に弾発的に落ち込むとき、両ロッド10、20の軸方向には、回り止め用切欠12を回り止め用リブ23に衝突せしめるように衝合する。この結果、回り止め用リブ23のリブ幅を回り止め用切欠12の横幅(第1ロッド10の周方向に沿う幅)より大きく設定し合ったり、又は回り止め用リブ23と回り止め用切欠12の中心軸を互いにずらして回り止め用リブ23の片側エッジが回り止め用切欠12の開口エッジに衝突するように設定してあるとき(第1ロッド10と第2ロッド20に2組の回り止め用切欠12、回り止め用リブ23を設けたときには第1ロッド10と第2ロッド20の軸方向視で左右いずれか同じ側にずらし、第1ロッド10と第2ロッド20に1組の回り止め用切欠12、回り止め用リブ23を設けたときには係合孔21と係合突起33の隙間より大きくずらす)、回り止め用切欠12と回り止め用リブ23はそれらの衝合面を互いに変形させたり、削り合う等して、軸方向及び周方向で隙間なく係合し合う。回り止め用切欠12と回り止め用リブ23が同一材質からなるときには変形させ合い、異材質からなるときには硬質材が軟質材を削る。   (3) When the engaging protrusion 33 of the first rod 10 is elastically dropped into the engaging hole 21 of the second rod 20 in the above (2), the anti-rotation is provided in the axial direction of the rods 10 and 20. The notch 12 is abutted so as to collide with the rotation-preventing rib 23. As a result, the rib width of the rotation prevention rib 23 is set to be larger than the lateral width of the rotation prevention notch 12 (the width along the circumferential direction of the first rod 10), or the rotation prevention rib 23 and the rotation prevention notch 12 are set. Are set so that one side edge of the detent rib 23 collides with the opening edge of the detent notch 12 (two sets of detents on the first rod 10 and the second rod 20). When the notch 12 and the anti-rotation rib 23 are provided, the first rod 10 and the second rod 20 are shifted to either the left or right side in the axial direction, and one set of detents is provided to the first rod 10 and the second rod 20. When the notch 12 for rotation and the rib 23 for rotation prevention are provided, they are shifted largely from the gap between the engagement hole 21 and the engagement projection 33), and the notch 12 for rotation prevention and the rib 23 for rotation prevention have their abutting surfaces deformed to each other. Or sharpen And the like fit, mutually engage without a gap in the axial direction and the circumferential direction. When the anti-rotation notch 12 and the anti-rotation rib 23 are made of the same material, they are deformed, and when they are made of different materials, the hard material scrapes the soft material.

(4)第1ロッド10と第2ロッド20を分離するときには、連結具30の拡開部31を操作者の手指により第1ロッド10の外周面に引き寄せ、係合突起33を第2ロッド20の係合孔21から外し、第2ロッド20を引き抜く。手指を離せば、連結具30は弾発的な縮径習性により再び第1ロッド10に抱き着く。   (4) When the first rod 10 and the second rod 20 are separated, the expanding portion 31 of the connector 30 is pulled toward the outer peripheral surface of the first rod 10 by the operator's finger, and the engaging protrusion 33 is moved to the second rod 20. And the second rod 20 is pulled out. When the fingers are released, the connector 30 is re-attached to the first rod 10 due to the elastic diameter-reducing behavior.

本実施例によれば以下の作用効果を奏する。
(a)第1ロッド10と第2ロッド20の挿入端で、第1ロッド10の係合突起33が第2ロッド20の係合孔21に嵌合係止したと同時に、両ロッド10、20の回り止め用リブ23と回り止め用切欠12を両ロッド10、20の周方向で互いに係合する。即ち、係合突起33が係合孔21に弾発的に嵌合する係止力により両ロッド10、20が互いに軸方向に引き込み合う抜け止め状態下で、回り止め用リブ23と回り止め用切欠12は軸方向で隙間なく係合し合い、かつ周方向でも隙間なく係合し合う。これにより、両ロッド10、20は軸方向及び周方向でガタなく連結するものになる。
According to the present embodiment, the following operational effects can be obtained.
(a) At the insertion end of the first rod 10 and the second rod 20, the engagement protrusion 33 of the first rod 10 is fitted and locked in the engagement hole 21 of the second rod 20, and at the same time both the rods 10, 20. The anti-rotation rib 23 and the anti-rotation notch 12 are engaged with each other in the circumferential direction of the rods 10 and 20. In other words, the anti-rotation rib 23 and the anti-rotation mechanism are in a retaining state where the rods 10 and 20 are pulled in the axial direction with each other due to the engaging force with which the engaging protrusion 33 is elastically engaged with the engaging hole 21. The notches 12 engage with each other without gaps in the axial direction and also with no gaps in the circumferential direction. Thereby, both the rods 10 and 20 will be connected without play in the axial direction and the circumferential direction.

(b)第1ロッド10と第2ロッド20の挿入過程で、第1ロッド10の係合突起33は第2ロッド20のガイド溝22のテーパ状溝底面にのって徐々に押上げられて弾発力をためた後、第2ロッド20の係合孔21に弾発的に嵌合係止する。これによって両ロッド10、20の軸方向に作用する弾発的な係止力は、回り止め用リブ23と回り止め用切欠12を衝突せしめるように衝合させる。回り止め用リブ23と回り止め用切欠12は、それらの衝合面を互いに変形させたり、削り合う等して、軸方向及び周方向で確実に隙間なく係合し合うものになる。   (b) During the insertion process of the first rod 10 and the second rod 20, the engaging protrusion 33 of the first rod 10 is gradually pushed up on the tapered groove bottom surface of the guide groove 22 of the second rod 20. After accumulating the elastic force, it is elastically fitted and locked into the engagement hole 21 of the second rod 20. As a result, the elastic locking force acting in the axial direction of the rods 10 and 20 makes the anti-rotation rib 23 and the anti-rotation notch 12 collide with each other. The anti-rotation rib 23 and the anti-rotation notch 12 are engaged with each other without any gap in the axial direction and the circumferential direction by deforming or scraping their abutting surfaces.

(c)回り止め用リブ23の形状を、回り止め用切欠12と係合する先端面を円弧状、又は先端に向って横幅を狭くするものとしたから、回り止め用リブ23と回り止め用切欠12の係合をスムーズなものとしている。   (c) Since the anti-rotation rib 23 has an arcuate front end surface that engages with the anti-rotation notch 12 or a width that decreases toward the front end, the anti-rotation rib 23 and the anti-rotation rib The engagement of the notch 12 is made smooth.

図1は実施例1のロッド連結構造を示す斜視図である。FIG. 1 is a perspective view showing a rod coupling structure of the first embodiment. 図2はロッド及び連結部品を示し、(A)は第1ロッドを示す断面図、(B)は連結具を示す断面図、(C)は第2ロッドを示す断面図である。2A and 2B show a rod and a connecting part, where FIG. 2A is a sectional view showing a first rod, FIG. 2B is a sectional view showing a connecting tool, and FIG. 2C is a sectional view showing a second rod. 図3は第1ロッドと第2ロッドの連結前状態を示し、(A)は断面図、(B)は平面図である。FIG. 3 shows a state before connection of the first rod and the second rod, (A) is a sectional view, and (B) is a plan view. 図4は第1ロッドと第2ロッドの連結初期過程を示し、(A)は断面図、(B)は平面図である。4A and 4B show an initial connection process of the first rod and the second rod, where FIG. 4A is a sectional view and FIG. 4B is a plan view. 図5は第1ロッドと第2ロッドの連結中間過程を示し、(A)は断面図、(B)は平面図である。5A and 5B show an intermediate process of connecting the first rod and the second rod, where FIG. 5A is a sectional view and FIG. 5B is a plan view. 図6は第1ロッドと第2ロッドの連結済状態を示し、(A)は断面図、(B)は平面図である。6A and 6B show a connected state of the first rod and the second rod, where FIG. 6A is a sectional view and FIG. 6B is a plan view. 図7は回り止め用リブと回り止め用切欠の変形例を示す模式図である。FIG. 7 is a schematic view showing a modified example of the rotation prevention rib and the rotation prevention notch.

符号の説明Explanation of symbols

10 第1ロッド
12 回り止め用切欠
20 第2ロッド
21 係合孔
22 ガイド溝
23 回り止め用リブ
33 係合突起
10 First rod 12 Non-rotating notch 20 Second rod 21 Engaging hole 22 Guide groove 23 Anti-rotating rib 33 Engaging protrusion

Claims (4)

第1ロッドと第2ロッドを雄雌嵌合して連結するに際し、
第1ロッドの径方向に弾発される係合突起を該第1ロッドの周面に設けるとともに、
第2ロッドの周面に第1ロッドの係合突起が嵌合係止する係合孔と、該係合突起を案内するように先端縁部から係合孔に延在されるガイド溝を設けたロッドの連結構造であって、
第1ロッドに回り止め用切欠を、第2ロッドに回り止め用リブを設け、第1ロッドの係合突起が第2ロッドの係合孔に嵌合係止したと同時に、第2ロッドの回り止め用リブと第1ロッドの回り止め用切欠を両ロッドの少なくとも周方向で互いに係合可能にし、
回り止め用リブと回り止め用切欠を係合する際に、
回り止め用リブの少なくとも片側エッジが回り止め用切欠の開口エッジに衝突するように設定し、
それらの衝合面を変形及び/又は削り合って周方向で隙間なく係合可能にしたロッドの連結構造。
When connecting the first rod and the second rod by male-female connection,
While providing an engagement protrusion that is elastic in the radial direction of the first rod on the peripheral surface of the first rod,
An engagement hole for engaging and locking the engagement protrusion of the first rod is provided on the peripheral surface of the second rod, and a guide groove extending from the edge of the tip to the engagement hole is provided so as to guide the engagement protrusion. A rod connecting structure,
The first rod is provided with a non-rotating notch, the second rod is provided with a non-rotating rib, and the engaging projection of the first rod is fitted and locked in the engaging hole of the second rod, The locking rib and the rotation preventing notch of the first rod can be engaged with each other at least in the circumferential direction;
When engaging the non-rotating rib and the non-rotating notch,
Set so that at least one edge of the rotation prevention rib collides with the opening edge of the rotation prevention notch,
A connecting structure of rods that deforms and / or scrapes their abutting surfaces so that they can be engaged in the circumferential direction without gaps.
前記ガイド溝が、第1ロッドと第2ロッドの挿入過程で係合突起を径方向に徐々に変位させ得るテーパ状をなす請求項1に記載のロッドの連結構造。   The rod connecting structure according to claim 1, wherein the guide groove has a tapered shape capable of gradually displacing the engaging protrusion in the radial direction during the insertion process of the first rod and the second rod. 前記第2ロッドの周面に設けられたガイド溝の底面は、第1ロッドの係合突起を第2ロッドの係合孔に向けて徐々に押し上げるテーパ状をなし、
押し上げられて蓄積された弾発力により前記回り止め用切欠を回り止め用リブに衝突せしめて衝合面を変形及び/又は削り合う請求項1又は2に記載のロッドの連結構造。
The bottom surface of the guide groove provided on the peripheral surface of the second rod has a tapered shape that gradually pushes the engagement protrusion of the first rod toward the engagement hole of the second rod,
The rod connection structure according to claim 1 or 2, wherein the abutment surface is deformed and / or scraped by causing the rotation-stop notch to collide with the rotation-stop rib by the elastic force pushed up and accumulated.
前記回り止め用リブが、前記回り止め用切欠と係合する先端面を円弧状、又は先端に向って横幅を狭くするものとした請求項1〜3のいずれかに記載のロッドの連結構造。   The rod connection structure according to any one of claims 1 to 3, wherein the rotation-preventing rib has an arcuate tip surface that engages with the rotation-stop notch, or a width that decreases toward the tip.
JP2005171480A 2005-06-10 2005-06-10 Connecting structure of rod Expired - Fee Related JP4589815B2 (en)

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JP2008253522A (en) * 2007-04-04 2008-10-23 Kao Corp Rod-like device
JP2009050392A (en) * 2007-08-24 2009-03-12 Kao Corp Rod-like device
JP2010025225A (en) * 2008-07-18 2010-02-04 Aron Kasei Co Ltd Connecting part socket structure, and pipe joint provided with the connecting part socket structure, basin, and pipe
JP2011122633A (en) * 2009-12-09 2011-06-23 Hitachi Automotive Systems Ltd Gas spring device

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* Cited by examiner, † Cited by third party
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JP2008253522A (en) * 2007-04-04 2008-10-23 Kao Corp Rod-like device
JP2009050392A (en) * 2007-08-24 2009-03-12 Kao Corp Rod-like device
JP2010025225A (en) * 2008-07-18 2010-02-04 Aron Kasei Co Ltd Connecting part socket structure, and pipe joint provided with the connecting part socket structure, basin, and pipe
JP2011122633A (en) * 2009-12-09 2011-06-23 Hitachi Automotive Systems Ltd Gas spring device

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