JP4734305B2 - Nut body fixing structure and nut body fixing method - Google Patents

Nut body fixing structure and nut body fixing method Download PDF

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JP4734305B2
JP4734305B2 JP2007233900A JP2007233900A JP4734305B2 JP 4734305 B2 JP4734305 B2 JP 4734305B2 JP 2007233900 A JP2007233900 A JP 2007233900A JP 2007233900 A JP2007233900 A JP 2007233900A JP 4734305 B2 JP4734305 B2 JP 4734305B2
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nut
pin shaft
nut body
fixed
fixed pin
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JP2009063149A (en
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忠晴 宮崎
賢治 槌田
祐介 糟谷
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日本工機株式会社
新日軽株式会社
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Description

本発明は、門扉、フェンス、カーポート等のエクステリア製品を含む各種屋外構造物、その他の各種構造物において使用するナット体固定構造及びナット体固定方法に関するものである。   The present invention relates to a nut body fixing structure and a nut body fixing method used in various outdoor structures including exterior products such as gates, fences, carports, and other various structures.

例えば、パンタグラフ式の伸縮門扉は、Ｘ状に交差する複数の斜架材をピン軸により交差状に枢着して左右方向に伸縮自在に構成されたパンタグラフ機構と、このパンタグラフ機構の前後に配置された左右方向に複数の縦枠材とを備え、各縦枠材に対応する上下方向に複数の交差部の内、その１個の交差部の固定ピン軸を各縦枠材に上下動不能に固定し、他の交差部を各縦枠材に上下摺動自在に連結している。   For example, a pantograph-type telescopic gate has a pantograph mechanism that is configured to extend in the left-right direction by pivotally attaching a plurality of slanting members intersecting in an X shape to the left and right, and arranged before and after the pantograph mechanism. A plurality of vertical frame members are provided in the left and right direction, and a fixed pin shaft of one of the plurality of intersecting portions in the vertical direction corresponding to each vertical frame member cannot be moved up and down with respect to each vertical frame material. The other crossing portions are connected to the vertical frame members so as to be slidable up and down.

固定ピン軸を縦枠材に固定する場合、従来はピン軸と軸端に当接する縦枠材とをリベットにより固定する構造か（特許文献１）、又は固定ピン軸を縦枠材に貫通させて、その先端に止め具を圧入する構造が採用されている（特許文献２）。
特開平１０−１５３０７２号公報 特開２００４−１９０７９７号公報 When fixing the fixed pin shaft to the vertical frame member, conventionally, the pin shaft and the vertical frame member contacting the shaft end are fixed by rivets (Patent Document 1), or the fixed pin shaft is passed through the vertical frame member. And the structure which press-fits a stopper in the front-end | tip is employ | adopted (patent document 2).
Japanese Patent Laid-Open No. 10-153072 JP 2004-190797 A

リベット式、止め具式の何れの固定構造も、ねじ式の固定構造に比較して縦枠材と固定ピン軸とを確実に固定できないという欠点がある。   Both the rivet-type and stopper-type fixing structures have a drawback that the vertical frame member and the fixing pin shaft cannot be reliably fixed as compared with the screw-type fixing structure.

一方、筒体から成る固定ピン軸を使用して、固定ピン軸の端部にねじにより縦枠材を固定する場合には、ねじを固定ピン軸の内周側に直接螺合するか、又は固定ピン軸の端部にナット体を螺合して固定しておき、このナット体にねじを螺合する方式が考えられる。   On the other hand, when using a fixed pin shaft made of a cylinder and fixing the vertical frame member to the end of the fixed pin shaft with a screw, the screw is directly screwed to the inner peripheral side of the fixed pin shaft, or A method is conceivable in which a nut body is screwed and fixed to the end portion of the fixed pin shaft, and a screw is screwed into the nut body.

しかし、ねじが固定ピン軸の内周に直接螺合する構造では、ねじに合う内径の固定ピン軸を使用することになり、内外周間の肉厚の厚い固定ピン軸が必要になる。また固定ピン軸の端部にナット体を固定する構造では、固定ピン軸の端部にナット体を固定するためのねじ加工等が必要になり、構造的に複雑になる欠点がある。   However, in a structure in which the screw is directly screwed to the inner periphery of the fixed pin shaft, a fixed pin shaft having an inner diameter matching the screw is used, and a thick fixed pin shaft between the inner and outer periphery is required. Further, in the structure in which the nut body is fixed to the end portion of the fixed pin shaft, there is a drawback in that the screw processing or the like for fixing the nut body to the end portion of the fixed pin shaft is required, which makes the structure complicated.

本発明は、このような従来の問題点に鑑み、伸縮門扉の固定ピン軸、その他の構造物において、その筒体の端部にナット体を容易且つ確実に固定できるナット体固定構造及びナット体固定方法を提供することを目的とする。   SUMMARY OF THE INVENTION The present invention has been made in view of the above-described conventional problems, and in a fixed pin shaft of a telescopic gate door and other structures, a nut body fixing structure and a nut body capable of easily and reliably fixing a nut body to an end portion of the cylindrical body. The purpose is to provide a fixing method.

本発明に係るナット体固定構造は、筒体１２の端部に固定されたナット体１８を備え、前記ナット体１８は前記筒体１２の端面に当接するフランジ部３２と、前記筒体１２内に嵌合するナット部３３と、前記フランジ部３２と前記ナット部３３との間に設けられ且つ前記筒体１２の軸心方向に圧縮されて該筒体１２の内周面に圧接する座屈部３４とを有するものである。   The nut body fixing structure according to the present invention includes a nut body 18 fixed to an end portion of the cylinder body 12, and the nut body 18 includes a flange portion 32 that contacts the end surface of the cylinder body 12, and the inside of the cylinder body 12. And a buckling which is provided between the flange portion 32 and the nut portion 33 and is compressed in the axial direction of the cylindrical body 12 and press-contacted to the inner peripheral surface of the cylindrical body 12 Part 34.

本発明に係るナット体固定方法は、筒体１２の端部にナット体１８を固定するに際して、フランジ部３２とナット部３３との間に筒部３５を有する前記ナット体１８を用い、該ナット体１８の前記ナット部３３と前記筒部３５とを前記筒体１２内に挿入して前記フランジ部３２を前記筒体１２の端面に当接し、前記筒体１２の端部外周を治具４２により保持した状態で、前記フランジ部３２と前記ナット部３３との間で前記筒部３５を軸心方向に加圧して該筒部３５を拡大方向に座屈させ、その座屈部３４を前記筒体１２の内周面に圧接させるものである。   The nut body fixing method according to the present invention uses the nut body 18 having the cylinder portion 35 between the flange portion 32 and the nut portion 33 when the nut body 18 is fixed to the end portion of the cylinder body 12. The nut portion 33 and the cylindrical portion 35 of the body 18 are inserted into the cylindrical body 12, the flange portion 32 is brought into contact with the end surface of the cylindrical body 12, and the outer periphery of the end portion of the cylindrical body 12 is attached to the jig 42. The cylindrical portion 35 is pressed in the axial direction between the flange portion 32 and the nut portion 33 in a state where the cylindrical portion 35 is buckled in the expansion direction, and the buckled portion 34 is It is brought into pressure contact with the inner peripheral surface of the cylindrical body 12.

本発明によれば、伸縮門扉の固定ピン軸、その他の筒体の端部にナット体を容易且つ確実に固定できる利点がある。   According to the present invention, there is an advantage that the nut body can be easily and reliably fixed to the fixing pin shaft of the telescopic gate and the other end of the cylindrical body.

以下、本発明の実施例を図面に基づいて詳述する。図〜図は本発明をパンタグラフ式の伸縮門扉、取り分けその扉体１に採用した場合の一例を例示する。   Embodiments of the present invention will be described below in detail with reference to the drawings. FIGS. 1 to 3 illustrate an example of the case where the present invention is applied to a pantograph-type telescopic gate, particularly to the door body 1.

この伸縮門扉の扉体１は、図２に示すように、左右方向に等間隔をおいて配置された複数の縦枠材２と、左右方向に伸縮自在に構成されたパンタグラフ機構３とを備え、パンタグラフ機構３を収縮させたときに、各縦枠材２が当接又は近接するようになっている。なお、扉体１の吊り元側に吊り元側端枠（図示省略）が、戸当たり側に戸当たり側端枠（図示省略）が夫々設けられ、その吊り元側端枠がヒンジを介して縦軸廻りに回転収納可能に吊り元支柱に連結され、また戸当たり側端枠が戸当たり支柱に当接して施錠手段により施錠可能になっている（何れも図示省略）。   As shown in FIG. 2, the door body 1 of the telescopic gate includes a plurality of vertical frame members 2 arranged at equal intervals in the left-right direction, and a pantograph mechanism 3 configured to be extendable in the left-right direction. When the pantograph mechanism 3 is contracted, the vertical frame members 2 come into contact with or approach each other. In addition, a suspension side end frame (not shown) is provided on the suspension side of the door body 1, and a door end side frame (not shown) is provided on the door stop side, and the suspension side end frame is provided via a hinge. It is connected to the suspension support column so that it can be rotated and stored around the vertical axis, and the door stop side end frame abuts on the door support column and can be locked by locking means (both not shown).

各縦枠材２は図３（Ａ）（Ｂ）に示すように、パンタグラフ機構３の前後両側に配置された前後一対の縦桟４を備え、その各縦桟４は上下両端側で互いに前後方向に結合されている。各縦桟４は図１、図３（Ａ）（Ｂ）に示すように角筒状であって、そのパンタグラフ機構３側に内向きに屈曲する左右一対の内向きリブ５を有し、反対側に左右一対の突出リブ６と、この突出リブ６の内側で外向きに屈曲する外向きリブ７とを有する。内向きリブ５、突出リブ６、外向きリブ７は上下方向の略全長に設けられている。そして、前側の縦桟４には突出リブ６、外向きリブ７を介して筒状の前カバー８が、後側の縦桟４には突出リブ６、外向きリブ７を介して板状の後カバー９が夫々上下方向の略全長に装着されている。   As shown in FIGS. 3A and 3B, each vertical frame member 2 includes a pair of front and rear vertical bars 4 disposed on both front and rear sides of the pantograph mechanism 3, and the vertical bars 4 are front and rear with respect to both upper and lower ends. Combined in direction. As shown in FIGS. 1, 3 (A) and 3 (B), each vertical rail 4 has a rectangular tube shape, and has a pair of left and right inward ribs 5 bent inward on the pantograph mechanism 3 side. It has a pair of left and right protruding ribs 6 on the side, and an outward rib 7 that bends outward on the inside of the protruding rib 6. The inward rib 5, the protruding rib 6, and the outward rib 7 are provided over substantially the entire length in the vertical direction. A cylindrical front cover 8 is provided on the front vertical rail 4 via a protruding rib 6 and an outward rib 7. A plate-like front cover 8 is provided on the rear vertical rail 4 via a protruding rib 6 and an outward rib 7. The rear covers 9 are attached to substantially the entire length in the vertical direction.

パンタグラフ機構３は、図２に示すように、Ｘ状に交差する複数の斜架材１０の交差部１１を前後方向のピン軸１２〜１４により相対回動自在に枢着して竹矢来状に構成したものであって、各縦枠材２に対応して上下方向に複数、例えば３箇所の交差部１１を、隣り合う縦枠材２間にその交差部１１よりも１個少ない交差部１１を有する。   As shown in FIG. 2, the pantograph mechanism 3 is pivotally attached to a crossing portion 11 of a plurality of slant members 10 that intersect in an X shape by means of pin shafts 12 to 14 in the front-rear direction so as to form a bamboo arrow shape. A plurality of, for example, three crossing portions 11 in the vertical direction corresponding to each vertical frame member 2, and one crossing portion 11 less than the crossing portion 11 between adjacent vertical frame members 2. Have

各縦枠材２に対応する複数の交差部１１の内、その１個の交差部１１（例えば上下方向の中間の交差部１１）は図３（Ａ）に示すように固定ピン軸１２により縦枠材２に固定され、他の交差部１１は図３（Ｂ）に示すように可動ピン軸１３により縦枠材２に対して上下摺動自在に連結されている。また中間交差部１１は図３（Ｃ）に示すように中間ピン軸１４により連結されている。そして、扉体１の伸縮時には、固定ピン軸１２を基準として、各可動ピン軸１３が縦枠材２に対して上下方向に摺動しながら、各斜架材１０が各ピン軸１２〜１４廻りに相対的に回動する。   Among the plurality of intersecting portions 11 corresponding to each vertical frame member 2, one intersecting portion 11 (for example, the middle intersecting portion 11 in the vertical direction) is vertically fixed by the fixed pin shaft 12 as shown in FIG. The other crossing portion 11 is fixed to the frame member 2 and is connected to the vertical frame member 2 by a movable pin shaft 13 so as to be vertically slidable as shown in FIG. The intermediate intersection 11 is connected by an intermediate pin shaft 14 as shown in FIG. When the door body 1 is extended and contracted, each movable pin shaft 13 slides in the vertical direction with respect to the vertical frame member 2 with the fixed pin shaft 12 as a reference, and each oblique member 10 has each pin shaft 12 to 14. It rotates relative to the surroundings.

各斜架材１０は図３、図５に示すように角筒状であって、その縦桟４側に内向きに屈曲する左右一対の内向きリブ１５を長手方向の略全長に有し、この内向きリブ１５を介して板状のカバー１６が長手方向の略全長に装着されている。   Each oblique member 10 has a rectangular tube shape as shown in FIGS. 3 and 5, and has a pair of left and right inward ribs 15 bent inwardly on the vertical rail 4 side over substantially the entire length in the longitudinal direction, A plate-like cover 16 is attached to the substantially entire length in the longitudinal direction via the inward rib 15.

各ピン軸１２〜１４は筒体により構成されている。そして、固定ピン軸１２は図３（Ａ）に示すように斜架材１０を貫通すると共に、前後両端部が内壁１７を貫通して各縦桟４内に挿入され、ナット体１８とねじ１９とにより各縦桟４の外壁２０に固定されている。中間ピン軸１４は図３（Ｃ）に示すように前後両端部が内壁２１を貫通して各斜架材１０内に挿通され、前後の一端側がナット体２２とねじ２３とにより一方の斜架材１０の外壁２４に固定されている。   Each pin shaft 12-14 is comprised by the cylinder. The fixed pin shaft 12 passes through the oblique member 10 as shown in FIG. 3 (A), and both front and rear end portions pass through the inner wall 17 and are inserted into the vertical bars 4. And are fixed to the outer wall 20 of each vertical rail 4. As shown in FIG. 3C, the intermediate pin shaft 14 has both front and rear ends penetrating through the inner wall 21 and inserted into each oblique member 10, and one end of the front and rear is inclined by a nut body 22 and a screw 23. It is fixed to the outer wall 24 of the material 10.

なお、中間ピン軸１４の他端側は斜架材１０の内壁２１及び外壁２４を貫通している。また固定ピン軸１２、中間ピン軸１４の両端は、カバー８，９，１６により覆われている。   The other end side of the intermediate pin shaft 14 passes through the inner wall 21 and the outer wall 24 of the oblique member 10. Further, both ends of the fixed pin shaft 12 and the intermediate pin shaft 14 are covered with covers 8, 9 and 16.

可動ピン軸１３は図３（Ｂ）に示すように斜架材１０を貫通すると共に、前後両端に摺動ブッシュ２５が套嵌され、その摺動ブッシュ２５が各縦桟４の内向きリブ５に上下摺動自在に支持案内されている。なお、内向きリブ５により摺動ブッシュ２５の摺動用の案内部が構成されている。固定ピン軸１２には幅決めパイプ２６、固定ブッシュ２７が套嵌され、可動ピン軸１３、中間ピン軸１４には幅決めパイプ２８，２９が套嵌されている。   The movable pin shaft 13 penetrates the oblique member 10 as shown in FIG. 3B, and sliding bushes 25 are fitted on both front and rear ends, and the sliding bushes 25 are inward ribs 5 of the vertical rails 4. Is supported and slidable up and down. The inward rib 5 constitutes a sliding guide portion for the sliding bush 25. A width determining pipe 26 and a fixed bush 27 are fitted on the fixed pin shaft 12, and width determining pipes 28 and 29 are fitted on the movable pin shaft 13 and the intermediate pin shaft 14.

固定ピン軸１２の前後両端を各縦桟４に固定する固定構造、中間ピン軸１４の一端を斜架材１０に固定する固定構造は、図１、図５に示すように略同じ構成になっている。以下の説明では、図１を参照して固定ピン軸１２側の固定構造について詳述し、中間ピン軸１４側については、同一構造部位に同一符号を付して、その説明を省略する。   The fixing structure for fixing the front and rear ends of the fixed pin shaft 12 to each vertical beam 4 and the fixing structure for fixing one end of the intermediate pin shaft 14 to the oblique member 10 have substantially the same configuration as shown in FIGS. ing. In the following description, the fixing structure on the fixed pin shaft 12 side will be described in detail with reference to FIG. 1, and the same reference numerals are assigned to the same structural portions on the intermediate pin shaft 14 side, and description thereof will be omitted.

ナット体１８は図１に示すように固定ピン軸１２の端面に当接するフランジ部３２と、固定ピン軸１２内に嵌合する円筒状のナット部３３と、フランジ部３２とナット部３３との間に一体に設けられ且つ固定ピン軸１２の軸心方向に圧縮されて固定ピン軸１２の内周面に対して圧接する座屈部３４とを有し、その座屈部３４の圧接により固定ピン軸１２の端部に移動しないように固定されている。ねじ１９は外壁２０の通孔２０ａに外側から挿入してナット体１８のナット部３３に螺合され、その頭部１９ａとフランジ部３２との間で外壁２０を締結し縦桟４に固定している。   As shown in FIG. 1, the nut body 18 includes a flange portion 32 that contacts the end surface of the fixed pin shaft 12, a cylindrical nut portion 33 that fits in the fixed pin shaft 12, and a flange portion 32 and a nut portion 33. And a buckling portion 34 that is integrally provided therebetween and is compressed in the axial direction of the fixed pin shaft 12 and press-contacted to the inner peripheral surface of the fixed pin shaft 12, and is fixed by the press-contact of the buckling portion 34. The pin shaft 12 is fixed so as not to move. The screw 19 is inserted into the through hole 20a of the outer wall 20 from the outside and screwed into the nut portion 33 of the nut body 18, and the outer wall 20 is fastened between the head portion 19a and the flange portion 32 to be fixed to the vertical beam 4. ing.

ナット体１８には図６に示すような構造の座屈固定式のものが使用されている。このナット体１８は、円板状のフランジ部３２と、内周に雌ねじ部３３ａを有する厚肉円筒状のナット部３３と、フランジ部３２の内周側とナット部３３の一端側との間に略同心状に設けられ且つナット部３３よりも薄肉状に形成された座屈用の円筒部３５とを一体に備え、その円筒部３５に周方向に複数、例えば２個のスリット３６が軸心方向に形成され、その各スリット３６間が周方向に円弧状の座屈片３７となっている。円筒部３５の各座屈片３７は、軸心方向に加圧したときに、その中間部分が径方向の外方に拡開するようになっている。なお、スリット３６は軸心方向に長い長孔状になっている。   As the nut body 18, a buckling fixed type structure having a structure as shown in FIG. 6 is used. The nut body 18 includes a disc-shaped flange portion 32, a thick cylindrical nut portion 33 having an internal thread portion 33a on the inner periphery, and an inner peripheral side of the flange portion 32 and one end side of the nut portion 33. Are integrally provided with a buckling cylindrical portion 35 that is formed substantially concentrically and formed thinner than the nut portion 33, and a plurality of, for example, two slits 36 are provided in the cylindrical portion 35 in the circumferential direction. It is formed in the center direction, and between the slits 36 is an arcuate buckling piece 37 in the circumferential direction. When each buckling piece 37 of the cylindrical portion 35 is pressurized in the axial direction, its intermediate portion expands outward in the radial direction. The slit 36 has a long hole shape that is long in the axial direction.

このナット体１８を使用して、そのナット部３３と円筒部３５とを固定ピン軸１２内に略同心状に挿入し、フランジ部３２を固定ピン軸１２の端面に当接した状態で軸心方向に円筒部３５を加圧して座屈させることにより、固定ピン軸１２の内周面に圧接する座屈部３４が形成されている。   Using this nut body 18, the nut portion 33 and the cylindrical portion 35 are inserted substantially concentrically into the fixed pin shaft 12, and the shaft portion is in a state where the flange portion 32 is in contact with the end surface of the fixed pin shaft 12. By buckling the cylindrical portion 35 in the direction, the buckling portion 34 that presses against the inner peripheral surface of the fixed pin shaft 12 is formed.

座屈部３４は例えば図１に示すようにスリット３６間の座屈片３７が内外方向に接触し重合する断面Ｓ字状に座屈することにより周方向に複数形成されており、その外周側の軸心方向に所定幅を有し且つ周方向に座屈片３７の幅分の接触面が固定ピン軸１２の内周面に対して接触している。なお、座屈部３４の座屈形状（断面形状）は単なる一例に過ぎない。   For example, as shown in FIG. 1, a plurality of buckling portions 34 are formed in the circumferential direction by buckling pieces 37 between the slits 36 in a S-shaped cross section where they contact and overlap in the inner and outer directions. A contact surface having a predetermined width in the axial direction and a width of the buckling piece 37 in the circumferential direction is in contact with the inner peripheral surface of the fixed pin shaft 12. Note that the buckling shape (cross-sectional shape) of the buckling portion 34 is merely an example.

このような座屈固定式のナット体１８を使用して、その座屈部３４を介してナット体１８を固定ピン軸１２の内周面に固定することにより、ナット体１８を固定ピン軸１２の端部に容易且つ確実に固定することができる。従って、そのナット体１８のナット部３３にねじ１９を螺合することにより、縦枠材２の各縦桟４と固定ピン軸１２とを固定することも容易に可能である。   By using such a buckling-fixed nut body 18 and fixing the nut body 18 to the inner peripheral surface of the fixed pin shaft 12 via the buckling portion 34, the nut body 18 is fixed to the fixed pin shaft 12. It can be easily and reliably fixed to the end portion. Therefore, it is possible to easily fix the vertical bars 4 and the fixing pin shaft 12 of the vertical frame member 2 by screwing the screws 19 into the nut portions 33 of the nut body 18.

特に座屈固定式のナット体１８を固定ピン軸１２に挿入し、そのフランジ部３２を固定ピン軸１２の端面に当接して固定しているのて、ナット体１８の位置を画一的に決定することができ、固定ピン軸１２に対するナット体１８の軸心方向の位置のバラツキ等も未然に防止できる。   In particular, the buckling-fixed nut body 18 is inserted into the fixed pin shaft 12, and the flange portion 32 is fixed in contact with the end surface of the fixed pin shaft 12, so that the position of the nut body 18 is uniform. This can be determined, and variations in the position of the nut body 18 in the axial direction relative to the fixed pin shaft 12 can be prevented in advance.

また座屈部３４を固定ピン軸１２の内周面に圧接してナット体１８を固定しているため、固定ピン軸１２側の端部に特段の加工を施す必要もない。例えば、固定ピン軸１２の切断時にその端面側内周にバリ等があっても、そのバリ等の除去すら不要である。ねじ１９の頭部１９ａは縦桟４に装着されたカバー８，９により覆われているので、縦桟４の外壁２０に外側からねじ１９を挿入して固定しているにも拘わらず、その頭部１９ａが外側に露出するようなこともない。   Further, since the nut body 18 is fixed by pressing the buckling portion 34 against the inner peripheral surface of the fixed pin shaft 12, it is not necessary to perform special processing on the end portion on the fixed pin shaft 12 side. For example, even if there is a burr or the like on the inner periphery of the end surface side when the fixed pin shaft 12 is cut, it is not necessary to remove the burr or the like. Since the head 19a of the screw 19 is covered with the covers 8 and 9 attached to the vertical beam 4, the screw 19 is inserted and fixed to the outer wall 20 of the vertical beam 4 from the outside. The head 19a is not exposed to the outside.

固定ピン軸１２にナット体１８を固定する場合には、座屈固定式のナット体１８の他に、次のような締結工具を準備する。固定用工具は、図４に示すようにナット体１８のフランジ部３２を受ける受け部４０と、この受け部４０の外周から突出して固定ピン軸１２の端部外周を保持する周壁部４１とを有する治具４２と、この治具４２の受け部４０側に軸心方向及び周方向に相対移動自在に挿通され且つ周壁部４１内に突出する締結軸４３とを備え、その締結軸４３の先端部に、ナット体１８のナット部３３に着脱自在に螺合する雄ねじ部４４が設けられている。   When the nut body 18 is fixed to the fixed pin shaft 12, the following fastening tool is prepared in addition to the buckling-fixed nut body 18. As shown in FIG. 4, the fixing tool includes a receiving portion 40 that receives the flange portion 32 of the nut body 18, and a peripheral wall portion 41 that protrudes from the outer periphery of the receiving portion 40 and holds the outer periphery of the end of the fixed pin shaft 12. And a fastening shaft 43 that is inserted into the receiving portion 40 side of the jig 42 so as to be relatively movable in the axial direction and the circumferential direction and protrudes into the peripheral wall portion 41, and the tip of the fastening shaft 43. A male screw portion 44 that is detachably engaged with the nut portion 33 of the nut body 18 is provided at the portion.

作業に際しては、先ず図４（Ａ）に示すように、ナット体１８のフランジ部３２側を治具４２の周壁部４１内に嵌め込み、ナット体１８の円筒部３５に挿入された締結軸４３を正転方向に回転させて雄ねじ部４４をナット部３３に螺合し、またフランジ部３２を受け部４０に当接させておく。   In the work, first, as shown in FIG. 4A, the flange portion 32 side of the nut body 18 is fitted into the peripheral wall portion 41 of the jig 42, and the fastening shaft 43 inserted into the cylindrical portion 35 of the nut body 18 is attached. The male screw part 44 is screwed into the nut part 33 by rotating in the forward direction, and the flange part 32 is brought into contact with the receiving part 40.

次に図４（Ａ）（Ｂ）に示すように、ナット体１８のナット部３３を固定ピン軸１２内に挿入しながら、固定ピン軸１２の端部を相対的に周壁部４１内へと挿入し、フランジ部３２を固定ピン軸１２の端面に当接させる。その後、図４（Ｃ）に示すように治具４２に対して締結軸４３を軸心方向にａ矢示方向へと相対的に移動させて、フランジ部３２とナット部３３との間で円筒部３５を軸心方向に加圧し圧縮する。   Next, as shown in FIGS. 4A and 4B, the end portion of the fixed pin shaft 12 is relatively moved into the peripheral wall portion 41 while the nut portion 33 of the nut body 18 is inserted into the fixed pin shaft 12. The flange 32 is inserted into contact with the end surface of the fixed pin shaft 12. Thereafter, as shown in FIG. 4C, the fastening shaft 43 is moved relative to the jig 42 in the direction of the arrow a in the axial direction, and the cylinder is formed between the flange portion 32 and the nut portion 33. The portion 35 is pressurized and compressed in the axial direction.

これによって円筒部３５の各座屈片３７がその軸心方向の中間で外側へと拡大方向に座屈するので、更に圧縮して座屈させて行く（図４（Ｃ）参照）。すると各座屈片３７が固定ピン軸１２の内周面に接触した後、固定ピン軸１２の内周面に沿ってＳ字状に屈曲する等しながら座屈して座屈部３４が形成され（図１参照）、その座屈部３４が固定ピン軸１２の内周面に所定の圧接力で圧接する。   As a result, each buckling piece 37 of the cylindrical portion 35 buckles outward in the middle of its axial direction, and is further compressed and buckled (see FIG. 4C). Then, after each buckling piece 37 comes into contact with the inner peripheral surface of the fixed pin shaft 12, the buckling portion 34 is formed by buckling while being bent in an S shape along the inner peripheral surface of the fixed pin shaft 12. (Refer to FIG. 1), the buckling portion 34 is pressed against the inner peripheral surface of the fixed pin shaft 12 with a predetermined pressing force.

この場合、固定ピン軸１２の端部外周は治具４２の周壁部４１内に嵌合しており、外周側から保持された状態で座屈片３７が圧接して行くので、固定ピン軸１２がアルミ系合金等であっても、その圧接力によって固定ピン軸１２の端部が拡径するようなこともない。このため固定ピン軸１２を所定の内径に保ちながら、座屈部３４の外周面の略全体を強力な圧接力で固定ピン軸１２の内周面に圧接させることができる。従って、固定ピン軸１２の端部にナット体１８を容易且つ強固に固定することができる。   In this case, the outer periphery of the end portion of the fixed pin shaft 12 is fitted in the peripheral wall portion 41 of the jig 42, and the buckling pieces 37 are pressed against each other while being held from the outer peripheral side. Even if it is an aluminum-based alloy or the like, the end portion of the fixed pin shaft 12 is not expanded by the pressure contact force. For this reason, it is possible to press the substantially entire outer peripheral surface of the buckling portion 34 against the inner peripheral surface of the fixed pin shaft 12 with a strong pressing force while keeping the fixed pin shaft 12 at a predetermined inner diameter. Therefore, the nut body 18 can be easily and firmly fixed to the end portion of the fixed pin shaft 12.

なお、所定の締結力になるまで締結した後、締結軸４３を逆方向に回転させてそのねじ部をナット部３３から抜き取ることにより、ナット体１８の固定ピン軸１２に対する固定が完了する。   In addition, after fastening until it becomes predetermined | prescribed fastening force, the fastening shaft 43 is rotated in a reverse direction, and the screw part is extracted from the nut part 33, and fixation with respect to the fixed pin axis | shaft 12 of the nut body 18 is completed.

図７は本発明の第２の実施例を例示する。この固定ピン軸１２には、その軸端側に絞り部１２ａが設けられ、その絞り部１２ａ側の内径が他の部分よりも小径になっている。この場合には、円筒部３５を拡径方向に座屈させて座屈部３４を形成した場合、その座屈部３４が絞り部１２ａに係合するため、固定後のナット体１８の離脱をより確実に防止できる。   FIG. 7 illustrates a second embodiment of the present invention. The fixed pin shaft 12 is provided with a throttle portion 12a on the shaft end side, and the inner diameter on the throttle portion 12a side is smaller than that of the other portions. In this case, when the buckling portion 34 is formed by buckling the cylindrical portion 35 in the diameter increasing direction, the buckling portion 34 engages with the throttle portion 12a. It can be prevented more reliably.

図８は本発明の第３の実施例を例示する。扉体１の左右両端側には、図８にその一端側を示すように、各可動ピン軸１３と、この可動ピン軸１３に隣接する中間ピン軸１４とに跨がって補強斜架材４５が設けられている。各補強斜架材４５は前後の斜架材１０間に配置され、その両端部に可動ピン軸１３、中間ピン軸１４が挿通されている。このように補強斜架材４５を設けることによって、斜架材１０の撓み等による扉体１の垂れ下がりを防止できる。   FIG. 8 illustrates a third embodiment of the present invention. As shown in FIG. 8, the left and right ends of the door body 1 are reinforced obliquely straddling the movable pin shafts 13 and the intermediate pin shafts 14 adjacent to the movable pin shafts 13. 45 is provided. Each reinforcing oblique member 45 is disposed between the front and rear oblique members 10, and the movable pin shaft 13 and the intermediate pin shaft 14 are inserted into both ends thereof. By providing the reinforcing oblique member 45 in this way, it is possible to prevent the door body 1 from hanging down due to bending of the oblique member 10 or the like.

以上、本発明の実施例について詳述したが、この実施例に限定されるものではなく、本発明の趣旨を逸脱しない範囲で種々の変更が可能である。例えば、各実施例では、パンタグラフ式の伸縮門扉の扉体１において、その固定ピン軸１２及び中間ピン軸１４にナット体１８，２２を固定する場合を例示しているが、門扉、フェンス、カーポート等のエクステリア製品を含む各種屋外構造物、その他の各種構造物においても同様に実施できる。   As mentioned above, although the Example of this invention was explained in full detail, it is not limited to this Example, A various change is possible in the range which does not deviate from the meaning of this invention. For example, in each embodiment, the case where the nut bodies 18 and 22 are fixed to the fixed pin shaft 12 and the intermediate pin shaft 14 in the door body 1 of the pantograph-type telescopic gate door is illustrated. The same can be applied to various outdoor structures including exterior products such as ports and other various structures.

従って、筒体１２の端部にナット体１８，２２を固定する必要のある構造物であれば、それらの全てに採用可能であることは云うまでもない。またナット体１８，２２とこれに螺合するねじ１９，２３とにより、筒体１２の端面にフランジ部３２を介して締結し固定される部材は、筒材、板材、中実材その他の何れでも良い。   Therefore, it goes without saying that any structure that needs to fix the nut bodies 18 and 22 to the end of the cylinder 12 can be used for all of them. A member fastened and fixed to the end face of the cylindrical body 12 via the flange portion 32 by the nut bodies 18 and 22 and screws 19 and 23 screwed to the nut bodies 18 and 22 is any one of a cylindrical material, a plate material, a solid material, and the like. But it ’s okay.

固定前のナット体１８，２２は、座屈用の円筒部３５に周方向の２箇所又は３箇所に軸心方向のスリット３６を有する構造が望ましいが、そのスリット３６の数は４個以上でも良い。また座屈用の円筒部３５には、周方向に複数の座屈片３７ができる構造であれば、その長孔状のスリット３６に代えて線状又は丸孔状の開口等でも良い。なお、座屈片３７の周方向の幅が広いほど、その幅の座屈部３４ができるため、ナット体１８，２２の固定後の座屈部３４の緩み等を防止できる。筒体１２は多角形でも良い。またナット体１８，２２には円筒部３５に代えて多角筒部を設けても良い。   The nut bodies 18 and 22 before fixing preferably have a structure in which the cylindrical portion 35 for buckling has slits 36 in the axial direction at two or three places in the circumferential direction, but the number of the slits 36 may be four or more. good. Further, the cylindrical portion 35 for buckling may be a linear or round hole opening or the like instead of the long hole slit 36 as long as it has a structure capable of forming a plurality of buckling pieces 37 in the circumferential direction. In addition, since the buckling part 34 of the width | variety is made, so that the width | variety of the circumferential direction of the buckling piece 37 is wide, the loosening of the buckling part 34 after fixing the nut bodies 18 and 22 etc. can be prevented. The cylinder 12 may be a polygon. Further, the nut bodies 18 and 22 may be provided with a polygonal cylindrical portion instead of the cylindrical portion 35.

本発明の第１実施例を示す要部の断面図である。It is sectional drawing of the principal part which shows 1st Example of this invention. 同扉体の正面図である。It is a front view of the door body. （Ａ）は同固定ピン軸部分の断面図、（Ｂ）は同可動ピン軸部分の断面図、（Ｃ）は同中間ピン軸部分の断面図である。(A) is a sectional view of the fixed pin shaft portion, (B) is a sectional view of the movable pin shaft portion, and (C) is a sectional view of the intermediate pin shaft portion. （Ａ）〜（Ｃ）は同ナット体の固定過程を示す一部破断図である。(A)-(C) are the partially broken views which show the fixing process of the nut body. 同要部の断面図である。It is sectional drawing of the principal part. 同ナット体の一部破断図である。It is a partially broken view of the nut body. 本発明の第２実施例を示す要部の断面図である。It is sectional drawing of the principal part which shows 2nd Example of this invention. 本発明の第３実施例を示す扉体の斜視図である。It is a perspective view of the door body which shows 3rd Example of this invention.

符号の説明Explanation of symbols

１２ 固定ピン軸（筒体）
１８ ナット体
３２ フランジ部
３３ ナット部
３４ 座屈部
３５ 筒部
４２ 治具 12 Fixed pin shaft (cylinder)
18 Nut body 32 Flange portion 33 Nut portion 34 Buckling portion 35 Tube portion 42 Jig

Claims (2)

筒体（１２）の端部に固定されたナット体（１８）を備え、前記ナット体（１８）は前記筒体（１２）の端面に当接するフランジ部（３２）と、前記筒体（１２）内に嵌合するナット部（３３）と、前記フランジ部（３２）と前記ナット部（３３）との間に設けられ且つ前記筒体（１２）の軸心方向に圧縮されて該筒体（１２）の内周面に圧接する座屈部（３４）とを有することを特徴とするナット体固定構造。   A nut body (18) fixed to an end portion of the cylindrical body (12) is provided. The nut body (18) includes a flange portion (32) that abuts on an end surface of the cylindrical body (12), and the cylindrical body (12). ), A nut portion (33) that fits inside, the flange portion (32), and the nut portion (33), and is compressed in the axial direction of the cylindrical body (12). The nut body fixing structure characterized by having a buckling part (34) press-contacted to the inner peripheral surface of (12). 筒体（１２）の端部にナット体（１８）を固定するに際して、フランジ部（３２）とナット部（３３）との間に筒部（３５）を有する前記ナット体（１８）を用い、該ナット体（１８）の前記ナット部（３３）と前記筒部（３５）とを前記筒体（１２）内に挿入して前記フランジ部（３２）を前記筒体（１２）の端面に当接し、前記筒体（１２）の端部外周を治具（４２）により保持した状態で、前記フランジ部（３２）と前記ナット部（３３）との間で前記筒部（３５）を軸心方向に加圧して該筒部（３５）を拡大方向に座屈させ、その座屈部（３４）を前記筒体（１２）の内周面に圧接させることを特徴とするナット体固定方法。   When fixing the nut body (18) to the end of the cylinder (12), the nut body (18) having the cylinder portion (35) between the flange portion (32) and the nut portion (33) is used. The nut portion (33) and the cylindrical portion (35) of the nut body (18) are inserted into the cylindrical body (12), and the flange portion (32) is brought into contact with the end surface of the cylindrical body (12). The cylindrical portion (35) is axially centered between the flange portion (32) and the nut portion (33) in a state where the outer periphery of the cylindrical body (12) is held in contact with the jig (42). A nut body fixing method, wherein the cylinder part (35) is buckled in an expanding direction by pressurizing in the direction, and the buckling part (34) is pressed against the inner peripheral surface of the cylinder body (12).
JP2007233900A 2007-09-10 2007-09-10 Nut body fixing structure and nut body fixing method Expired - Fee Related JP4734305B2 (en)

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JPS5644268A (en) * 1979-09-20 1981-04-23 Canon Inc Copying and recording device
JPS5929833A (en) * 1982-08-10 1984-02-17 Honda Motor Co Ltd Bolt vibration control device
JPS60104592A (en) * 1983-11-09 1985-06-08 三菱重工業株式会社 Recovery of soda from pulp waste liquor
JPS6462144A (en) * 1987-08-31 1989-03-08 Shimadzu Corp Frequency control apparatus of mri apparatus
JPH06185518A (en) * 1992-12-15 1994-07-05 Kel Corp Structure and method for fitting nut to plate material
JPH1089336A (en) * 1996-09-18 1998-04-07 Sansei Alum Kk Nut fixing structure
JPH10153072A (en) * 1996-11-20 1998-06-09 Nippon Koki Kk Telescoping gate for setting up on slope
JP2001107927A (en) * 1999-10-07 2001-04-17 Shinko Giken Sangyo Kk Anchor nut and anchoring method of anchor nut
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