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WO2017006390A1 - 水平方向自在継手 - Google Patents

水平方向自在継手 Download PDF

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Publication number
WO2017006390A1
WO2017006390A1 PCT/JP2015/069285 JP2015069285W WO2017006390A1 WO 2017006390 A1 WO2017006390 A1 WO 2017006390A1 JP 2015069285 W JP2015069285 W JP 2015069285W WO 2017006390 A1 WO2017006390 A1 WO 2017006390A1
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WO
WIPO (PCT)
Prior art keywords
joint member
connection port
frame insertion
port portion
hole section
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.)
Ceased
Application number
PCT/JP2015/069285
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English (en)
French (fr)
Inventor
順也 松本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Grandoir International Ltd
Original Assignee
Grandoir International Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Grandoir International Ltd filed Critical Grandoir International Ltd
Priority to PCT/JP2015/069285 priority Critical patent/WO2017006390A1/ja
Priority to EP15897653.0A priority patent/EP3318771B1/en
Priority to JP2015542103A priority patent/JP5916267B1/ja
Publication of WO2017006390A1 publication Critical patent/WO2017006390A1/ja
Priority to US15/848,293 priority patent/US11553804B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
    • A47D13/00—Other nursery furniture
    • A47D13/06—Children's play- pens
    • A47D13/061—Children's play- pens foldable
    • A47D13/065—Children's play- pens foldable with rigid walls
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
    • A47D13/00—Other nursery furniture
    • A47D13/06—Children's play- pens
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
    • A47D15/00—Accessories for children's furniture, e.g. safety belts or baby-bottle holders
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
    • F16B12/40—Joints for furniture tubing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/10—Telescoping systems
    • F16B7/14—Telescoping systems locking in intermediate non-discrete positions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements

Definitions

  • the present invention relates to a horizontal universal joint, and more particularly, to an improvement of a horizontal universal joint that can freely change the connection angle of two joint members in the horizontal direction.
  • an infant's circle used so as to enclose an infant's playground equipment, bedding, etc. is used by connecting a unit in which a plurality of vertical frames are attached at predetermined intervals between two upper and lower horizontal frames as a whole.
  • a joint when one other unit is connected to one unit, the ends of the upper and lower horizontal frames are connected to each other through a joint.
  • joints with a fixed horizontal connection angle such as nipple-like joints that connect the two in a straight line, and elbow-like joints that connect both at a fixed angle
  • Joints that can freely change the connection angle are also used.
  • the conventional horizontal universal joint as described above has a problem that its strength is insufficient due to its structure, and in fact, it is not easy to use.
  • the problem to be solved by the present invention is to provide a horizontal universal joint that is simple in structure, has sufficient strength, and is actually easy to use.
  • the present invention that solves the above-described problems includes a first joint member in which a frame insertion port portion that faces the horizontal direction and a female connection port portion that faces the vertical direction are integrally formed, and a frame insertion port portion that faces the horizontal direction And a second joint member integrally formed with a male connection port facing the vertical direction, and the female connection port of the first joint member and the male connection port of the second joint member are elastic.
  • the female connection port portion is detachably engaged with the inner peripheral surface of the female connection port portion and the outer peripheral surface of the male connection port portion.
  • the horizontal direction in which the frame insertion port portion of the second joint member faces the frame insertion port portion of the first joint member can be freely set according to the both meshing positions when the male connection port portion is inserted into the connection port portion.
  • the present invention relates to a horizontal universal joint characterized in that it can be changed to
  • a horizontal universal joint according to the present invention (hereinafter referred to as a joint according to the present invention) includes a first joint member integrally formed with a frame insertion port facing the horizontal direction and a female connection port facing the vertical direction. And a second joint member in which a frame insertion port portion facing the horizontal direction and a male connection port portion facing the vertical direction are integrally formed.
  • the axial direction of the frame insertion port of the first joint member and the axial direction of the female connection port are orthogonal to each other.
  • the axial direction of the frame insertion port of the second joint member and the male connection port The upper frame end and the lower frame end of the above-described circle are inserted into the frame insertion port that faces the horizontal direction of the first joint member and the second joint member and is orthogonal to the axial direction. It is like that.
  • the female connection port of the first joint member and the male connection port of the second joint member are detachably engaged via an elastic body.
  • the elastic body include a rubber having a restoring force and a spring.
  • a spring is disposed between the female connection port portion of the first joint member and the male connection port portion of the second joint member, and the male connection port portion extends from the male connection port portion in the axial direction of the spring.
  • the bolt through the bolt, the tip of the bolt is screwed into a screw groove provided in the bottom of the female connection port, and tightened, so that the female connection port of the first joint member and the male shape of the second joint member
  • the connection port portion can be detachably engaged.
  • teeth that mesh with each other are formed on the inner peripheral surface of the female connection port portion of the first joint member and the outer peripheral surface of the male connection port portion of the second joint member.
  • the horizontal direction in which the frame insertion port portion of the second joint member faces the frame insertion port portion of the first joint member can be freely adjusted by both the meshing positions when the male connection port portion is inserted into the connection port portion. It can be changed to.
  • the female connection port is formed in a cylindrical shape, and a tooth row along the axial direction is formed on the inner peripheral surface thereof.
  • the female connection port is formed in a cylindrical shape having a slightly smaller diameter than the female connection port.
  • the first joint member is further integrally formed with the auxiliary frame insertion port portion so as to face the female connection port portion, and the auxiliary frame connection tube is detachably engaged with the auxiliary frame insertion port portion. It is preferable to combine them.
  • a cylindrical auxiliary frame insertion port portion is integrally formed on the same axis relative to the female connection port portion of the first joint member, and the auxiliary frame insertion port portion has a cylindrical shape slightly smaller in diameter than this. Auxiliary frame connecting cylinder formed in is inserted.
  • a V-shaped leaf spring is pushed into the auxiliary frame connecting cylinder, and hemispherical protrusions formed at both ends thereof are protruded from small holes provided in the auxiliary frame connecting cylinder. Is fitted into a small hole provided in the inner peripheral surface of the auxiliary frame insertion port, so that the auxiliary frame connecting tube can be detachably engaged with the auxiliary frame insertion port.
  • the material of the joint of the present invention can be any material such as a wooden one, a metallic one, a ceramic one, a plastic one, a composite material, etc., but it is economical, lightweight, durable and easy to use, etc. Therefore, the first joint member and the second joint member are preferably made of plastic.
  • the use of the joint of the present invention is not particularly limited, but it is particularly useful when the frames of circles that are enclosed for the safety of infant playground equipment and bedding are connected to each other.
  • Such an infant's circle is used by connecting a unit in which a plurality of vertical frames are attached at predetermined intervals between two upper and lower horizontal frames as a whole, and the joint of the present invention is connected to the upper side between both units.
  • This is useful when connecting the horizontal frames of each other and connecting the lower horizontal frames.
  • those provided with the auxiliary frame insertion port and the auxiliary frame connecting cylinder as described above can support the auxiliary frame functioning as a vertical frame between the upper and lower auxiliary frame connecting cylinders, so that the horizontal frames are connected to each other vertically. It is possible to prevent the vertical frames from becoming too empty at the joint.
  • the joint of the present invention has an effect that the structure is simple and has sufficient strength, and is actually easy to use.
  • the longitudinal cross-sectional view which shows the 1st coupling member of FIG. The longitudinal cross-sectional view which shows the 2nd coupling member of FIG.
  • the longitudinal cross-sectional view shown in the state after assembling the same coupling of this invention as FIG. The perspective view which illustrates the use condition of the joint of the present invention.
  • the partial front view which illustrates the other use condition of the coupling of the present invention.
  • the joint of the present invention shown in FIGS. 1 to 4 includes a first joint member 11 in which a frame insertion port portion 12 facing the horizontal direction and a female connection port portion 13 facing the vertical direction are integrally formed,
  • the second joint member 21 is integrally formed with a frame insertion port portion 22 facing the direction and a male connection port portion 23 facing the vertical direction.
  • the axial direction of the frame insertion port portion 12 of the first joint member 11 and the axial direction of the female connection port portion 13 are orthogonal to each other, and similarly, the axial direction of the frame insertion port portion 22 of the second joint member 21 and the male direction.
  • the frame insertion port portions 12 and 22 facing the horizontal direction of the first joint member 11 and the second joint member 22 are orthogonal to the axial direction of the shape connection port portion 23, and the end of the upper frame of the circle described above And the end of the lower frame are inserted.
  • the female connection port portion 13 of the first joint member 11 and the male connection port portion 23 of the second joint member 21 are detachably engaged via a spring 31.
  • a spring 31 is disposed between the female connection port 13 of the first joint member 11 and the male connection port 23 of the second joint member 21, and the female connection port 23 extends from the male connection port 23 in the axial direction of the spring 31.
  • the female connection port of the first joint member 11 is formed by passing the bolt 32 through the connection port 13 and screwing and tightening the tip of the bolt 32 into the screw groove 14 provided at the bottom of the female connection port 13.
  • the portion 13 and the male connection port portion 23 of the second joint member 22 are detachably engaged via a spring 31.
  • Teeth rows 15 and 25 that mesh with the inner peripheral surface of the female connection port portion 13 of the first joint member 11 and the outer peripheral surface of the male connection port portion 23 of the second joint member 21 are formed.
  • the frame insertion port portion 22 of the second joint member 21 with respect to the frame insertion port portion 12 of the first joint member 11 due to both meshing positions when the male connection port portion 23 is inserted into the connection port portion 13. Can be changed freely in the horizontal direction.
  • the female connection port portion 13 is formed in a cylindrical shape, and the tooth row 15 along the axial direction is formed on the inner peripheral surface thereof.
  • the female connection port portion 23 is slightly smaller in diameter than the female connection port portion 13.
  • the first joint member 11 is further integrally formed with an auxiliary frame insertion port 16 facing the female connection port 13, and the auxiliary frame insertion port 16 has an auxiliary frame.
  • the connecting cylinder 51 is detachably engaged.
  • a cylindrical auxiliary frame insertion port 16 is integrally formed on the same axis relative to the female connection port 13 of the first joint member 11, and the auxiliary frame insertion port 16 has a slightly smaller diameter cylinder.
  • the auxiliary frame connecting cylinder 51 formed in a shape is inserted.
  • a V-shaped leaf spring 52 is pushed into the auxiliary frame connecting cylinder 51, and hemispherical protrusions 52a and 52b formed at both ends thereof are inserted from the small holes 51a and 51b provided in the auxiliary frame connecting cylinder 51.
  • the protrusions 52 a and 52 b are inserted into the small holes 16 a and 16 b provided on the inner peripheral surface of the auxiliary frame insertion port 16 so that the auxiliary frame connection cylinder 51 is inserted into the auxiliary frame insertion port 16. It can be detachably engaged.
  • 41 is a cap that covers the surface of the second joint member 21 that faces the male connection port 23 in order to cover the spring 31 and the bolt 32.
  • FIG. 5 a unit in which a plurality of vertical frames 63 are attached at predetermined intervals between the upper horizontal frame 61... And the lower horizontal frame 62. And assembling a circle for infants with a rectangular plane as a whole. Specifically, on the upper side of the infant circle, the horizontal frames 61 and 61 on the upper side of the unit adjacent to the frame insertion port portion 12 of the first joint member 11 and the frame insertion port portion 22 of the second joint member 21 are inserted, Similarly, both units are connected at a right angle below the baby circle.
  • FIG. 6 a unit in which a plurality of vertical frames 66... Are attached at predetermined intervals between the upper horizontal frames 64 and 64 and the lower horizontal frames 65 and 65 using the joint 10. Are connected in a straight line, and a part of the circle for infants is omitted. Specifically, on the upper side of the circle for infants, the horizontal frames 64 and 64 on the upper side of the unit adjacent to the frame insertion port portion 12 of the first joint member 11 and the frame insertion port portion 22 of the second joint member 21 are inserted, Similarly, both units are connected in a straight line under the baby circle.
  • the upper and lower joints 10 are formed by integrally forming the auxiliary frame insertion port 16 in the first joint member 11 and engaging the auxiliary frame connection tube 51 with the auxiliary frame insertion port 16.
  • the auxiliary frame 52 is passed between the upper and lower auxiliary frame connecting cylinders 51 and 51 to prevent the vertical frames 66 and 66 from becoming too empty at the joints 10 and 10.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Pediatric Medicine (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
  • Furniture Connections (AREA)

Abstract

構造が簡単で充分な強度を有し、実際のところ、使い勝手のよい水平方向自在継手を提供する。　水平方向を臨むフレーム挿入口部（１２）と垂直方向を臨む雌形接続口部（１３）とが一体的に形成された第１継手部材（１１）と、水平方向を臨むフレーム挿入口部（２２）と垂直方向を臨む雄形接続口部（２３）とが一体的に形成された第２継手部材（２１）とを備え、第１継手部材（１１）の雌形接続口部（１３）と第２継手部材（２１）の雄形接続口部（２３）とは弾性体を介して着脱自在に係合されており、該雌形接続口部（１３）の内周面及び該雄形接続口部（２３）の外周面には相互に噛合する歯列（１５，２５）が形成されていて、該雌形接続口部（１３）に対して該雄形接続口部（２３）を差込んだときの双方の噛合位置により第１継手部材（１１）のフレーム挿入口部（１２）に対して第２継手部材（２１）のフレーム挿入口部（２２）が臨む水平方向を自在に変更できるようにした。

Description

水平方向自在継手
　本発明は水平方向自在継手に関し、更に詳しくは二つの継手部材の水平方向における接続角度を自在に変更できるようにした水平方向自在継手の改良に関する。
　例えば、乳幼児の遊具類や寝具類等を囲むようにして用いる乳幼児用サークルは、上下２本の横フレーム間に所定間隔で複数の縦フレームを取付けたユニットを全体としてサークル状に接続して用いる。かかる乳幼児用サークルでは、一つのユニットに他の一つのユニットを接続する場合、双方のユニット間で上下の横フレームの端部を継手を介して接続する。かかる継手には、双方を直線的に接続するニップル様の継手や、双方を一定の角度で接続するエルボ様の継手等、水平方向の接続角度が固定されている継手の他に、水平方向の接続角度を自在に変更できる継手も使用されている。
　従来、水平方向の接続角度を自在に変更できる継手として、縦杆体にカラーを固着し、このカラーに一方の連結管を取付けると共に、前記縦杆体に回動筒を回動自在に取付け、この回動筒に他方の連結管を取付けて、これらの連結管にサークルのフレーム端部を挿入するようにしたものが知られており（例えば、特許文献１参照）、また縦杆の軸方向端部に二つの雌口を設け、これらの雌口のそれぞれに雄口の一端部を差込んで、各雄口の他端部にサークルのフレーム端部を挿入するようにしたもの等が知られている（例えば、特許文献２参照）。
　しかし、前記のような従来の水平方向自在継手には、その構造上から強度が不充分であり、実際のところ、使い勝手が悪いという問題がある。
特開２００３－１１６６７９号公報 特開２０１３－１５４０８２号公報
　本発明が解決しようとする課題は、構造が簡単で充分な強度を有し、実際のところ、使い勝手のよい水平方向自在継手を提供する処にある。
　前記の課題を解決する本発明は、水平方向を臨むフレーム挿入口部と垂直方向を臨む雌形接続口部とが一体的に形成された第１継手部材と、水平方向を臨むフレーム挿入口部と垂直方向を臨む雄形接続口部とが一体的に形成された第２継手部材とを備え、第１継手部材の雌形接続口部と第２継手部材の雄形接続口部とは弾性体を介して着脱自在に係合されており、該雌形接続口部の内周面及び該雄形接続口部の外周面には相互に噛合する歯列が形成されていて、該雌形接続口部に対して該雄形接続口部を差込んだときの双方の噛合位置により第１継手部材のフレーム挿入口部に対して第２継手部材のフレーム挿入口部が臨む水平方向を自在に変更できるようにして成ることを特徴とする水平方向自在継手に係る。
　本発明に係る水平方向自在継手（以下、本発明の継手という）は、水平方向を臨むフレーム挿入口部と垂直方向を臨む雌形接続口部とが一体的に形成された第１継手部材と、水平方向を臨むフレーム挿入口部と垂直方向を臨む雄形接続口部とが一体的に形成された第２継手部材とを備えている。第１継手部材のフレーム挿入口部の軸線方向と雌形接続口部の軸線方向とは直交する関係にあり、同様に第２継手部材のフレーム挿入口部の軸線方向と雄形接続口部の軸線方向とは直交する関係にあって、第１継手部材及び第２継手部材の水平方向を臨むフレーム挿入口部には前記したサークルの上側フレームの端部や下側フレームの端部を挿入するようになっている。
　本発明の継手では、第１継手部材の雌形接続口部と第２継手部材の雄形接続口部とは弾性体を介して着脱自在に係合されている。弾性体としては復元力を有するゴムやスプリング等が挙げられる。例えば、第１継手部材の雌形接続口部と第２継手部材の雄形接続口部との間にスプリングを配置し、このスプリングの軸線方向に雄形接続口部から雌形接続口部へとボルトを通して、このボルトの先端部を雌形接続口部の底部に設けた螺子溝へと螺合して締め付けることにより、第１継手部材の雌形接続口部と第２継手部材の雄形接続口部とを着脱自在に係合することができる。
　また本発明の継手では、第１継手部材の雌形接続口部の内周面及び第２継手部材の雄形接続口部の外周面に相互に噛合する歯列が形成されており、雌形接続口部に対して雄形接続口部を差込んだときの双方の噛合位置により、第１継手部材のフレーム挿入口部に対して第２継手部材のフレーム挿入口部が臨む水平方向を自在に変更できるようになっている。雌形接続口部を円筒状に形成し、その内周面に軸線方向に沿う歯列を形成すると共に、同様に雌形接続口部を雌形接続口部よりもやや小径の円筒状に形成し、その外周面に軸線方向に沿う歯列を形成して、かかる雌形接続口部に雄形接続口部を差込んで双方の歯列を噛合させると、そのときの双方の噛合位置により、第１継手部材のフレーム挿入口部に対して第２継手部材のフレーム挿入口部が臨む水平方向を自在に変更することができる。
　本発明の継手では、第１継手部材には雌形接続口部と相対して更に補助フレーム挿入口部を一体的に形成し、この補助フレーム挿入口部に補助フレーム接続筒を着脱自在に係合させることが好ましい。例えば、第１継手部材の雌形接続口部と相対して同一軸線上に円筒状の補助フレーム挿入口部を一体的に形成し、この補助フレーム挿入口部にこれよりもやや小径の円筒状に形成した補助フレーム接続筒を差込む。このとき、補助フレーム接続筒内にＶ字形の板バネを押し込んでおき、その両端部に形成した半球状の突起部を補助フレーム接続筒に設けた小孔から突出させておいて、かかる突起部を補助フレーム挿入口部の内周面に設けた小孔に嵌め込むことにより、補助フレーム挿入口部に補助フレーム接続筒を着脱自在に係合することができる。
　本発明の継手の材質は、木製のもの、金属性のもの、セラミック製のもの、プラスチック製のもの、複合材料製のもの等、任意であるが、経済性、軽量性、耐用性及び使い勝手等から、第１継手部材及び第２継手部材はプラスチック製のものが好ましい。
　また本発明の継手の用途は特に制限されないが、なかでも乳幼児の遊具類や寝具類等の安全のために囲むサークルのフレーム相互を接続する場合に有用である。かかる乳幼児用のサークルは、上下２本の横フレーム間に所定間隔で複数の縦フレームを取付けたユニットを全体としてサークル状に接続して用いるが、本発明の継手は、双方のユニット間で上側の横フレーム相互を接続し、また下側の横フレーム相互を接続するときに有用である。なかでも前記したように補助フレーム挿入口部と補助フレーム接続筒を備えるものは、上下の補助フレーム接続筒の間に縦フレームとして機能する補助フレームを支持できるため、上下で横フレーム相互を接続する継手の部分で縦フレーム相互間が空き過ぎてしまうことを防止できる。
　以上説明した通り、本発明の継手には、構造が簡単で充分な強度を有し、実際のところ使い勝手がよいという効果がある。
本発明の継手を組立てる前の状態で例示する分解図。 図１の第１継手部材を示す縦断面図。 図１の第２継手部材を示す縦断面図。 図１と同じ本発明の継手を組立てた後の状態で示す縦断面図。 本発明の継手の使用状態を例示する斜視図。 本発明の継手の他の使用状態を例示する部分正面図。
　図１～図４に示した本発明の継手は、水平方向を臨むフレーム挿入口部１２と垂直方向を臨む雌形接続口部１３とが一体的に形成された第１継手部材１１と、水平方向を臨むフレーム挿入口部２２と垂直方向を臨む雄形接続口部２３とが一体的に形成された第２継手部材２１とを備えている。第１継手部材１１のフレーム挿入口部１２の軸線方向と雌形接続口部１３の軸線方向とは直交する関係にあり、同様に第２継手部材２１のフレーム挿入口部２２の軸線方向と雄形接続口部２３の軸線方向とは直交する関係にあって、第１継手部材１１及び第２継手部材２２の水平方向を臨むフレーム挿入口部１２，２２には前記したサークルの上側フレームの端部や下側フレームの端部を挿入するようになっている。
　第１継手部材１１の雌形接続口部１３と第２継手部材２１の雄形接続口部２３とはスプリング３１を介して着脱自在に係合されている。第１継手部材１１の雌形接続口部１３と第２継手部材２１の雄形接続口部２３との間にスプリング３１を配置し、スプリング３１の軸線方向に雄形接続口部２３から雌形接続口部１３へとボルト３２を通して、ボルト３２の先端部を雌形接続口部１３の底部に設けた螺子溝１４へと螺合して締め付けることにより、第１継手部材１１の雌形接続口部１３と第２継手部材２２の雄形接続口部２３とをスプリング３１を介して着脱自在に係合している。
　第１継手部材１１の雌形接続口部１３の内周面及び第２継手部材２１の雄形接続口部２３の外周面に相互に噛合する歯列１５，２５が形成されており、雌形接続口部１３に対して雄形接続口部２３を差込んだときの双方の噛合位置により、第１継手部材１１のフレーム挿入口部１２に対して第２継手部材２１のフレーム挿入口部２２が臨む水平方向を自在に変更できるようになっている。雌形接続口部１３を円筒状に形成し、その内周面に軸線方向に沿う歯列１５を形成すると共に、同様に雌形接続口部２３を雌形接続口部１３よりもやや小径の円筒状に形成し、その外周面に軸線方向に沿う歯列２５を形成して、かかる雌形接続口部１３に雄形接続口部２３を差込んで双方の歯列を噛合させたとき、双方の噛合位置により、第１継手部材１１のフレーム挿入口部１２に対して第２継手部材２１のフレーム挿入口部２２が臨む水平方向を自在に変更することができる。
　図示した本発明の継手では、第１継手部材１１には雌形接続口部１３と相対して更に補助フレーム挿入口部１６が一体的に形成されており、補助フレーム挿入口部１６に補助フレーム接続筒５１が着脱自在に係合されている。第１継手部材１１の雌形接続口部１３と相対して同一軸線上に円筒状の補助フレーム挿入口部１６を一体的に形成し、補助フレーム挿入口部１６にこれよりもやや小径の円筒状に形成した補助フレーム接続筒５１を差込む。このとき、補助フレーム接続筒５１内にＶ字形の板バネ５２を押し込んでおき、その両端部に形成した半球状の突起部５２ａ，５２ｂを補助フレーム接続筒５１に設けた小孔５１ａ，５１ｂから突出させておいて、かかる突起部５２ａ，５２ｂを補助フレーム挿入口部１６の内周面に設けた小孔１６ａ，１６ｂに嵌め込むことにより、補助フレーム挿入口部１６に補助フレーム接続筒５１を着脱自在に係合することができる。説明を省略するが、４１はスプリング３１やボルト３２を覆うために第２継手部材２１の雄形接続口部２３と相対する面に被せるキャップである。
　図５において、上側の横フレーム６１・・と下側の横フレーム６２・・との間に所定間隔で複数の縦フレーム６３・・を取付けたユニット相互を、本発明の継手１０・・を用いて接続し、全体として平面が長方形の乳幼児用サークルを組立ている。具体的に、乳幼児用サークルの上側では、第１継手部材１１のフレーム挿入口部１２と第２継手部材２１のフレーム挿入口部２２に隣接するユニットの上側の横フレーム６１，６１を挿入し、乳幼児用サークルの下側でも同様にして、双方のユニットをほぼ直角に接続している。
　図６において、上側の横フレーム６４，６４と下側の横フレーム６５，６５との間に所定間隔で複数の縦フレーム６６・・を取付けたユニット相互を、本発明の継手１０・・を用いて直線状に接続し、全体の図示を省略する乳幼児用サークルの一部を組立ている。具体的に、乳幼児用サークルの上側では、第１継手部材１１のフレーム挿入口部１２と第２継手部材２１のフレーム挿入口部２２に隣接するユニットの上側の横フレーム６４，６４を挿入し、乳幼児用サークルの下側でも同様にして、双方のユニットを直線状に接続している。そしてここでは、上側及び下側の継手１０として、第１継手部材１１に補助フレーム挿入口部１６を一体的に形成し、補助フレーム挿入口部１６に補助フレーム接続筒５１を係合したものを用い、上側及び下側の双方の補助フレーム接続筒５１，５１間に補助フレーム５２を渡し、継手１０，１０の部分で縦フレーム６６，６６の相互間が空き過ぎるのを防止している。
　１０　　　　継手
　１１　　　　第１継手部材
　１２，２２　フレーム挿入口部
　１３　　　　雌形接続口部
　１４　　　　螺子溝
　１５，２５　歯列
　１６　　　　補助フレーム挿入口部
　２１　　　　第２継手部材
　２３　　　　雄形接続口部
　３１　　　　スプリング
　３２　　　　ボルト
　４１　　　　キャップ
　５１　　　　補助フレーム接続筒
　５２　　　　板バネ

Claims (5)

  1. 　水平方向を臨むフレーム挿入口部と垂直方向を臨む雌形接続口部とが一体的に形成された第１継手部材と、水平方向を臨むフレーム挿入口部と垂直方向を臨む雄形接続口部とが一体的に形成された第２継手部材とを備え、第１継手部材の雌形接続口部と第２継手部材の雄形接続口部とは弾性体を介して着脱自在に係合されており、該雌形接続口部の内周面及び該雄形接続口部の外周面には相互に噛合する歯列が形成されていて、該雌形接続口部に対して該雄形接続口部を差込んだときの双方の噛合位置により第１継手部材のフレーム挿入口部に対して第２継手部材のフレーム挿入口部が臨む水平方向を自在に変更できるようにして成ることを特徴とする水平方向自在継手。
  2. 　第１継手部材に雌形接続口部と相対して更に補助フレーム挿入口部が一体的に形成されており、該補助フレーム挿入口部に補助フレーム接続筒が着脱自在に係合された請求項１記載の水平方向自在継手。
  3. 　弾性体がスプリングであり、該スプリングとその軸線方向に通された螺子によって第１継手部材の雌形接続口部と第２継手部材の雄形接続口部とが係合された請求項１又は２記載の水平方向自在継手。
  4. 　第１継手部材及び第２継手部材がプラスチック製のものである請求項１～３のいずれか一つの項記載の水平方向自在継手。
  5. 　乳幼児用サークルのフレーム相互を接続するためのものである請求項１～３のいずれか一つの項記載の水平方向自在継手。
PCT/JP2015/069285 2015-07-03 2015-07-03 水平方向自在継手 Ceased WO2017006390A1 (ja)

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EP15897653.0A EP3318771B1 (en) 2015-07-03 2015-07-03 Horizontal universal joint
JP2015542103A JP5916267B1 (ja) 2015-07-03 2015-07-03 水平方向自在継手
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EP3318771A1 (en) 2018-05-09
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