JPH068663U - Auto hinge for door - Google Patents

Auto hinge for door

Info

Publication number
JPH068663U
JPH068663U JP4764692U JP4764692U JPH068663U JP H068663 U JPH068663 U JP H068663U JP 4764692 U JP4764692 U JP 4764692U JP 4764692 U JP4764692 U JP 4764692U JP H068663 U JPH068663 U JP H068663U
Authority
JP
Japan
Prior art keywords
door
adjusting
partition wall
hinge
guide member
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.)
Granted
Application number
JP4764692U
Other languages
Japanese (ja)
Other versions
JPH08456Y2 (en
Inventor
宏 上瀬
Original Assignee
大鳥機工株式会社
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 大鳥機工株式会社 filed Critical 大鳥機工株式会社
Priority to JP1992047646U priority Critical patent/JPH08456Y2/en
Publication of JPH068663U publication Critical patent/JPH068663U/en
Application granted granted Critical
Publication of JPH08456Y2 publication Critical patent/JPH08456Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

(57)【要約】 (修正有) 【目的】 開き戸式ドアに設けられ、ドアを自動的に閉
じると共にその閉止速度を調整できるドア用オートヒン
ジにおいて、低温時と高温時とで簡単にドアの閉止速度
を調整できるようにする。 【構成】 オートヒンジ本体5に内蔵させたシリンダの
シリンダ本体36を回転軸23と一体に回転させてピス
トン37を昇降させ、ピストン下端に取付けた仕切壁5
2にて区画された上部室40と下部室41との間で作動
流体を出入りさせ、その流量を仕切壁に設けた逆止弁5
4並びに仕切壁に形成された流通路53とこの流通路に
挿入される流量調整バルブ42のニードルとの間の隙間
で調整するようにしたオートドアヒンジにおいて、ニー
ドルに下端側から大径の第1調整軸部64とそれより小
径の第2調整軸部65とを形成し、低温時で作動流体の
粘性が高いときには第2調整軸部を流通路内に配置さ
せ、高温時で作動流体の粘性が低いときには第1調整軸
部を流通路内に配置させる。
(57) [Summary] (Modified) [Purpose] An automatic door hinge provided on a hinged door that automatically closes the door and adjusts the closing speed. Be able to adjust the closing speed. [Structure] A cylinder main body 36 of a cylinder built in an auto hinge main body 5 is rotated integrally with a rotary shaft 23 to raise and lower a piston 37, and a partition wall 5 attached to a lower end of the piston.
The check valve 5 which allows the working fluid to flow in and out between the upper chamber 40 and the lower chamber 41 partitioned by 2 and has the flow rate provided on the partition wall
4 and the flow path 53 formed in the partition wall and the needle of the flow rate adjusting valve 42 inserted into the flow path, the automatic door hinge is adjusted to have a large first diameter from the lower end side. The adjusting shaft portion 64 and the second adjusting shaft portion 65 having a smaller diameter than that are formed, and when the viscosity of the working fluid is high at low temperature, the second adjusting shaft portion is arranged in the flow passage, and the viscosity of the working fluid at high temperature is set. When is low, the first adjusting shaft portion is arranged in the flow passage.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

この考案は、開き戸式ドアにおいて、ドアを自動的に閉じると共にその閉止速 度を調整する機構を組込んだオートヒンジ本体をドア内に組込むセミコンシール ドタイプのドア用オートヒンジに関するものである。 The present invention relates to a semi-concealed type door automatic hinge for a hinged door, in which an automatic hinge body incorporating a mechanism for automatically closing the door and adjusting the closing speed thereof is incorporated into the door.

【0002】[0002]

【従来の技術】[Prior art]

開き戸式ドアに取付けられるドアオートヒンジは、ドアを開ける際の力を利用 してオートヒンジ本体に内蔵させたトーションスプリングに弾性力を蓄積させ、 ドア閉止時に前記トーションスプリングの弾性復元力にてドアを閉じ、かつオー トヒンジ本体に内蔵させた流体の流れを調整して、その閉止速度を制御するよう になっている。 The door auto hinge installed on a hinged door uses the force when the door is opened to accumulate elastic force in the torsion spring built into the auto hinge body, and when the door is closed, the elastic restoring force of the torsion spring causes the door to return to the door. Is closed and the flow rate of the fluid contained in the auto hinge body is adjusted to control the closing speed.

【0003】 ドアオートヒンジを備えたドアは、例えば図5に示す様に、壁(1)の出入口 の上下端とドア(2)の上下端との間にそれぞれドアヒンジ(3)(4)を組み つけ、ドア(2)をドアヒンジ(3)(4)にて開閉自在に支持し、開けたドア (2)を自動的に閉じると共にその閉止速度を調整する機構を組込んだオートヒ ンジ本体(5)を下部ドアヒンジ(4)に設け、かつオートヒンジ本体(5)を ドア(2)内に内蔵させている。A door provided with a door auto hinge has, for example, as shown in FIG. 5, door hinges (3) and (4) between the upper and lower ends of the entrance and exit of the wall (1) and the upper and lower ends of the door (2), respectively. Assembled, the door (2) is supported by the door hinges (3) and (4) so that it can be opened and closed, and the opened door (2) is automatically closed and an auto hinge main body incorporating a mechanism for adjusting the closing speed ( 5) is provided on the lower door hinge (4), and the auto hinge body (5) is built in the door (2).

【0004】 上部ドアヒンジ(3)は、図6に示す様に、壁(1)に固定ヒンジブラケット (6)を取付け、ドア(2)の上面に可動ヒンジブラケット(7)を取付け、可 動ヒンジブラケット(7)の下方から上方へピボット軸(10)を突出させ、ピ ボット軸(10)の上部を固定ヒンジブラケット(6)にスライドブッシュ(1 1)を介して回転自在に支持させてある。As shown in FIG. 6, the upper door hinge (3) has a fixed hinge bracket (6) attached to the wall (1) and a movable hinge bracket (7) attached to the upper surface of the door (2) to provide a movable hinge. The pivot shaft (10) is projected upward from below the bracket (7), and the upper part of the pivot shaft (10) is rotatably supported by the fixed hinge bracket (6) via the slide bush (11). .

【0005】 下部ドアヒンジ(4)は、図7に示す様に、床(12)に固定ヒンジブラケッ ト(13)を取付け、ドア(2)の下面に可動ヒンジブラケット(14)を取付 け、固定ヒンジブラケット(13)に取付けたピボット軸(15)にピニオン軸 (16)を一体結合させ、ピニオン軸(16)の上部を軸受け(17)を介して 可動ヒンジブラケット(14)に回転自在に支持させてある。As shown in FIG. 7, the lower door hinge (4) is fixed by attaching a fixed hinge bracket (13) to the floor (12) and a movable hinge bracket (14) to the lower surface of the door (2). The pinion shaft (16) is integrally coupled to the pivot shaft (15) attached to the hinge bracket (13), and the upper part of the pinion shaft (16) is rotatably supported by the movable hinge bracket (14) via the bearing (17). I am allowed.

【0006】 従って、ドア(2)は、上部ドアヒンジ(3)に設けられたピボット軸(10 )及び下部ドアヒンジ(4)に設けられたピニオン軸(16)を回転中心として 開閉する。そして、下部ドアヒンジ(4)の可動ヒンジブラケット(14)にオ ートヒンジ本体(5)を一体に設けてある。Therefore, the door (2) opens and closes with the pivot shaft (10) provided on the upper door hinge (3) and the pinion shaft (16) provided on the lower door hinge (4) as the center of rotation. The auto hinge body (5) is integrally provided on the movable hinge bracket (14) of the lower door hinge (4).

【0007】 オートヒンジ本体(5)にはドア(2)に閉止方向の力を付与する蓄力機構( 20)と、ドア(2)の閉止速度を調整する速度調整機構(21)を組込んであ る。蓄力機構(20)は、可動ヒンジブラケット(14)を貫通させてオートヒ ンジ本体(5)の筒状ケース(22)内に回転軸(23)を軸受け(24)を介 して回転自在に支持させ、回転軸(23)の下部に回転歯車(25)をキー結合 し、上部にトーションスプリング(26)を装着してある。トーションスプリン グ(26)は下端の係止部(26a)を回転軸(23)に装着したカラー(27 )に係合させ、上端の係止部(26b)を筒状ケース(22)に結合させたスラ イドカラー(30)に係止させてある。上記カラー(27)は軸受け(31)と 回転軸(23)の段差部(32)とに挾持されて回転軸(23)と一体に回転し 、スライドカラー(30)は筒状ケース(22)に固定されて回転しないので、 回転軸(23)の回転によりトーションスプリング(26)が捩られて弾性力を 蓄える。The auto hinge main body (5) incorporates a power storage mechanism (20) for applying a closing force to the door (2) and a speed adjusting mechanism (21) for adjusting the closing speed of the door (2). Is. The power storage mechanism (20) rotatably mounts a rotary shaft (23) through a bearing (24) in a cylindrical case (22) of the auto hinge main body (5) by penetrating a movable hinge bracket (14). It is supported, the rotary gear (25) is keyed to the lower part of the rotary shaft (23), and the torsion spring (26) is mounted on the upper part. The torsion spring (26) engages the locking portion (26a) at the lower end with the collar (27) mounted on the rotating shaft (23), and couples the locking portion (26b) at the upper end to the cylindrical case (22). It is locked to the slide collar (30). The collar (27) is sandwiched between the bearing (31) and the step (32) of the rotary shaft (23) and rotates integrally with the rotary shaft (23), and the slide collar (30) is a cylindrical case (22). Since it is fixed to and does not rotate, the torsion spring (26) is twisted by the rotation of the rotating shaft (23) to store an elastic force.

【0008】 また回転軸(23)にキー結合された回転歯車(25)は、図8にも示す様に 、可動ヒンジブラケット(14)に取付けられたアイドル歯車(33)を介して ピニオン軸(16)に形成されたピニオン歯車(34)に噛み合っている。前記 回転歯車(25)及びアイドル歯車(33)は、ピニオン歯車(34)の回りを 公転しながら自転するようになっており、ドア(2)の開閉に伴ってピニオン歯 車(34)の回りを所定の方向に回転して、回転軸(23)を回転させる。Further, as shown in FIG. 8, the rotary gear (25) key-coupled to the rotary shaft (23) is connected to the pinion shaft (33) via an idle gear (33) attached to the movable hinge bracket (14). It meshes with the pinion gear (34) formed in 16). The rotary gear (25) and the idle gear (33) are designed to rotate around the pinion gear (34) while revolving around the pinion gear (34), and when the door (2) is opened and closed, the rotation of the pinion gear (34) is reduced. Is rotated in a predetermined direction to rotate the rotating shaft (23).

【0009】 従って、ドア(2)を開放させると、回転軸(23)が回転し、トーションス プリング(26)を捩って弾性力を蓄えさせ、ドア(2)への開放力がなくなる と、トーションスプリング(26)の弾性力にて回転軸(23)を逆転させ、ド ア(2)を自動的に閉じるようになっている。Therefore, when the door (2) is opened, the rotating shaft (23) is rotated, and the torsion spring (26) is twisted to store elastic force, so that the opening force to the door (2) disappears. The rotation shaft (23) is reversed by the elastic force of the torsion spring (26) to automatically close the door (2).

【0010】 速度調整機構(21)は、筒状ケース(22)内に作動流体を充填したシリン ダ(35)を内蔵させ、回転軸(23)と一体にシリンダ本体(36)を回転さ せ、その回転によりシリンダ本体(36)に内蔵させたピストン(37)を昇降 させ、ピストン(37)の昇降に伴って上部室(40)と下部室(41)との間 で流動する作動流体の流量を流量調整バルブ(42)にて調整して、回転軸(2 3)の回転速度を調整するものである。The speed adjusting mechanism (21) has a cylindrical case (22) having a built-in cylinder (35) filled with a working fluid to rotate the cylinder body (36) integrally with the rotary shaft (23). The rotation causes the piston (37) contained in the cylinder body (36) to move up and down, and the working fluid flowing between the upper chamber (40) and the lower chamber (41) as the piston (37) moves up and down. The flow rate is adjusted by the flow rate adjusting valve (42) to adjust the rotation speed of the rotating shaft (23).

【0011】 即ち、図9にも示す様に、筒状ケース(22)の上端に中空状のガイド部材( 43)を挿入して固定し、筒状ケース(22)内にシリンダ本体(36)を挿入 し、シリンダ本体(36)の下端を回転軸(23)の上端外周に嵌合させるとと もに、上端を軸受け(44)及びスライドブッシュ(45)を介してガイド部材 (43)に回転自在に支持させてある。シリンダ本体(36)内に配置されたピ ストン(37)は円筒状で、下部外周面に送り用雄ねじ(46)を形成して、シ リンダ本体(36)の下部内周面に形成された送り用雌ねじ(47)に螺合させ てある。またピストン(37)の内周面には雌型スプライン(50)を形成し、 ガイド部材(43)の下部軸部に形成した雄型スプライン(51)と噛み合わせ て、回転不能で昇降のみ可能となっている。従って、ピストン(37)はシリン ダ本体(36)が回転すると、雌ねじ(47)と雄ねじ(46)との螺合関係に より、雌型スプライン(50)と雄型スプライン(51)に案内されて上下動す る。That is, as also shown in FIG. 9, the hollow guide member (43) is inserted and fixed to the upper end of the cylindrical case (22), and the cylinder body (36) is inserted into the cylindrical case (22). And the lower end of the cylinder body (36) is fitted on the outer periphery of the upper end of the rotary shaft (23), and the upper end is guided to the guide member (43) via the bearing (44) and the slide bush (45). It is rotatably supported. The piston (37) arranged in the cylinder body (36) is cylindrical, and is formed on the lower inner peripheral surface of the cylinder body (36) by forming the male feed screw (46) on the lower outer peripheral surface. It is screwed onto the female screw (47) for feeding. Further, a female spline (50) is formed on the inner peripheral surface of the piston (37) and meshes with a male spline (51) formed on the lower shaft portion of the guide member (43), so that it cannot rotate and can only be moved up and down. Has become. Therefore, when the cylinder body (36) rotates, the piston (37) is guided to the female spline (50) and the male spline (51) by the screwing relationship between the female screw (47) and the male screw (46). Move up and down.

【0012】 ピストン(37)の下端には仕切壁(52)を取付けてあり、仕切壁(52) を挟んで作動流体が出入りする下部室(41)と上部室(40)を形成し、仕切 壁(52)の中央部に下部室(41)と上部室(40)とを連通する流通路(5 3)を形成し、周囲の一部に逆止弁(54)を設けてある。逆止弁(54)は下 部室(41)から上部室(40)への作動流体の流入を防止するようになってい る。A partition wall (52) is attached to the lower end of the piston (37) to form a lower chamber (41) and an upper chamber (40) through which the working fluid flows, with the partition wall (52) interposed therebetween. A flow passage (53) that connects the lower chamber (41) and the upper chamber (40) is formed in the center of the wall (52), and a check valve (54) is provided in a part of the periphery. The check valve (54) prevents the working fluid from flowing into the upper chamber (40) from the lower chamber (41).

【0013】 流量調整バルブ(42)は、調整軸(55)の下端にニードル(56)を回転 かつ揺動自在に取付けてあり、調整軸(55)は下部外周面に位置調整用雄ねじ (57)を形成し、上端に調整用バルブギヤ(60)を一体に取付けてある。ま たニードル(56)は上端から下方にかけて順次径が太くなるようにテーパをつ けてある。この流量調整バルブ(42)は上端側からガイド部材(43)内に挿 入し、位置調整用雄ねじ(57)をガイド部材(43)に形成された位置調整用 雌ねじ(61)に螺合させ、ニードル(56)を仕切壁(52)に形成された流 通路(53)に貫通させてある。ガイド部材(43)と調整軸(55)との間に はシール部材(62)を装着してシリンダ本体(36)内に充填した作動流体が 洩れないようになっている。The flow rate adjusting valve (42) has a needle (56) attached to the lower end of the adjusting shaft (55) so as to be rotatable and swingable, and the adjusting shaft (55) has a position adjusting male screw (57) on the lower outer peripheral surface. ) Is formed, and an adjusting valve gear (60) is integrally attached to the upper end. Further, the needle (56) is tapered so that the diameter gradually increases from the upper end to the lower part. The flow rate adjusting valve (42) is inserted into the guide member (43) from the upper end side, and the position adjusting male screw (57) is screwed into the position adjusting female screw (61) formed on the guide member (43). The needle (56) is passed through the flow passage (53) formed in the partition wall (52). A seal member (62) is mounted between the guide member (43) and the adjusting shaft (55) to prevent the working fluid filled in the cylinder body (36) from leaking.

【0014】 上記構成のドアオートヒンジは、ドア(2)が開放されると、可動ヒンジブラ ケット(14)がピニオン軸(16)を中心に回転し、ピニオン軸(16)のピ ニオン歯車(34)に噛み合っているアイドル歯車(33)及び回転歯車(25 )を介して回転軸(23)を回転させ、トーションスプリング(26)に弾性力 を蓄積させる。同時に回転軸(23)と一体にシリンダ本体(36)も回転し、 ピストン(37)を上昇させる。ピストン(37)の上昇によりシリンダ本体( 36)の上部室(40)から下部室(41)へ作動流体が流れる。シリンダ本体 (36)の上部室(40)から下部室(41)への作動流体の流入は、仕切壁( 52)に設けられた逆止弁(54)及びニードル(56)と流通路(53)との 隙間を通って流れるため、流量が多く、ドア(2)は抵抗なく開く。When the door (2) is opened, the movable hinge bracket (14) of the door auto hinge having the above-described structure rotates about the pinion shaft (16) and the pinion gear (34) of the pinion shaft (16). ), The rotating shaft (23) is rotated through the idle gear (33) and the rotating gear (25) meshing with each other, and elastic force is accumulated in the torsion spring (26). At the same time, the cylinder body (36) also rotates integrally with the rotary shaft (23), and the piston (37) is raised. The working fluid flows from the upper chamber (40) of the cylinder body (36) to the lower chamber (41) by the ascent of the piston (37). The working fluid flows from the upper chamber (40) of the cylinder body (36) into the lower chamber (41) of the check valve (54) and the needle (56) provided in the partition wall (52) and the flow passage (53). ), The flow is large and the door (2) opens without resistance.

【0015】 ドア(2)を放すと、トーションスプリング(26)の弾性力で回転軸(23 )を逆回転させてドア(2)を閉じる。このときシリンダ本体(36)も逆回転 し、ピストン(37)が下降する。ピストン(37)の下降時、仕切壁(52) に設けられた逆止弁(54)が閉じ、下部室(41)から上部室(40)への作 動流体の流入は、仕切壁(52)に形成された流通路(53)と流量調整バルブ (42)のニードル(56)との隙間から行われるので、流量が絞られてピスト ン(37)の下降速度が遅くなり、シリンダ本体(36)及び回転軸(23)の 回転速度も遅くなるので、ドア(2)の閉止速度が遅くなり、ゆっくり閉じる。When the door (2) is released, the elastic force of the torsion spring (26) causes the rotating shaft (23) to rotate in the reverse direction to close the door (2). At this time, the cylinder body (36) also rotates in the reverse direction, and the piston (37) descends. When the piston (37) descends, the check valve (54) provided in the partition wall (52) closes, and the working fluid flows from the lower chamber (41) into the upper chamber (40). ), The flow passage (53) and the needle (56) of the flow rate adjusting valve (42) form a gap between the flow passage (53) and the needle (56). 36) and the rotation speed of the rotary shaft (23) are also slowed down, the closing speed of the door (2) is slowed down and the door (2) is closed slowly.

【0016】 流量調整バルブ(42)のニードル(56)はテーパになっているので、調整 軸(55)を回転させて昇降させ、ニードル(56)と仕切壁(52)との相対 的な位置合せを行い、その隙間の大きさを調整することにより、作動流体の流量 を調整して、ドア(2)の閉止速度を調整できるようになっている。Since the needle (56) of the flow rate adjusting valve (42) is tapered, the adjusting shaft (55) is rotated to move up and down, and the relative position between the needle (56) and the partition wall (52). By adjusting and adjusting the size of the gap, the flow rate of the working fluid can be adjusted and the closing speed of the door (2) can be adjusted.

【0017】 尚、図9では説明の便宜上、ピストン(37)を上昇端近傍まで上昇させてい るが、実際のドアの開閉に際しては、ピストン(37)の移動量は僅かである。In FIG. 9, the piston (37) is raised to the vicinity of the rising end for convenience of description, but the amount of movement of the piston (37) is small when the door is actually opened and closed.

【0018】[0018]

【考案が解決しようとする課題】[Problems to be solved by the device]

上記オートドアヒンジでは、ドア(2)の閉止速度の調整は、流量調整バルブ (42)のニードル(56)とピストン(37)の仕切壁(52)に形成された 流通路(53)との隙間を流れる作動流体の流量を調整することによって行って いる。この作動流体は、温度変化によって粘性及び流動点が変り、低温時では粘 性が高くなって流れにくくなり、高温時では粘性が低くなって流れやすくなる。 従って、低温時と高温時とでドア(2)の閉止速度が異なることになる。 In the above automatic door hinge, the closing speed of the door (2) is adjusted by adjusting the clearance between the needle (56) of the flow rate adjusting valve (42) and the flow passage (53) formed in the partition wall (52) of the piston (37). This is done by adjusting the flow rate of the working fluid flowing through. The viscosity and the pour point of the working fluid change due to the temperature change, the viscosity becomes high at low temperature and becomes difficult to flow, and the viscosity becomes low at high temperature to easily flow. Therefore, the closing speed of the door (2) is different between the low temperature and the high temperature.

【0019】 従来の流量調整バルブ(42)のニードル(56)は、多少の流量調整を行う ことができるが、その径が一義的に決められているため、上記の如く大きな温度 変化に対応することができず、低温時用ニードルと高温時用ニードルとを備えた 流量調整バルブ(42)を二種類用意して、これらを動作温度に合せて取り替え ていた。The needle (56) of the conventional flow rate adjusting valve (42) can adjust the flow rate to some extent, but since its diameter is uniquely determined, it corresponds to a large temperature change as described above. Therefore, two types of flow rate adjusting valves (42) equipped with a low temperature needle and a high temperature needle were prepared, and they were replaced according to the operating temperature.

【0020】 そのため、低温時と高温時とで作動流体の粘性が変るとオートヒンジ本体の分 解・組立を行わねばならず、非常に面倒である。また、二種類の流量調整バルブ を用意せねばならず、しかも流量調整バルブ(42)の交換時に作動流体が洩れ たりすることもあり、作業並びに管理が面倒であった。Therefore, if the viscosity of the working fluid changes between low temperature and high temperature, the auto hinge main body must be disassembled and assembled, which is very troublesome. Moreover, two kinds of flow rate adjusting valves must be prepared, and the working fluid may leak when the flow rate adjusting valve (42) is replaced, which makes the work and management troublesome.

【0021】 この考案は、流量調整バルブを交換することなく、流量調整バルブの位置合せ を行うだけで低温時と高温時とに対応できるようにしたドアオートヒンジを提供 しようとするものである。The present invention is intended to provide a door auto hinge capable of coping with low temperature and high temperature only by aligning the flow rate adjusting valve without replacing the flow rate adjusting valve.

【0022】[0022]

【課題を解決するための手段】[Means for Solving the Problems]

この考案は、ドアを保持する下部ドアヒンジの可動側ヒンジブラケットと、前 記可動側ヒンジブラケットに取付けられた筒状ケース内にドアへ閉止方向の力を 付与する蓄力機構と、ドアの閉止速度を調整する速度調整機構を内蔵したオート ヒンジ本体と、前記可動ヒンジブラケットの開閉動作を前記蓄力機構へ伝達する 歯車機構とからなり、前記蓄力機構を、前記筒状ケース内に回転自在に支持され た回転軸と、前記回転軸に巻装され、下端部を回転軸側に係合させ、上端部を前 記筒状ケース側に係合させたトーションスプリングとで構成し、前記速度調整機 構を、下部外周面に雄型スプラインを形成し、内周面に位置調整用雌ねじを形成 し、前記筒状ケースの上端部に取付けられた中空のガイド部材と、下部内周面に 送り用雌ねじを形成し、前記筒状ケース内に収容し、下端を前記回転軸に結合さ せ、上端を前記ガイド部材に回転自在に支持させたシリンダ本体と、外周面に前 記シリンダ本体の送り用雌ねじと螺合する送り用雄ねじを形成し、かつ内周面に 前記ガイド部材の雄型スプラインに噛み合う雌型スプラインを形成し、前記シリ ンダ本体とガイド部材との間に配置されたピストンと、中心部に流通路を形成し 、前記ピストンの下端部に取付けられた仕切壁と、前記仕切壁に設けられ、上部 室から下部室への作動流体の流通のみ許す逆止弁と、下端部に前記仕切壁の流通 路を貫通するニードルを有し、外周面に前記ガイド部材の位置調整用雌ねじと螺 合する位置調整用雄ねじを形成し、前記ガイド部材内に挿入される流量調整バル ブとで構成し、前記ニードルに下端側から大径の第1調整軸部と前記第1調整軸 部より小径の第2調整軸部とを形成し、前記第1調整軸部若しくは第2調整軸部 を前記仕切壁の流通路内に配置させるようにしたものである。 This invention has a movable side hinge bracket of a lower door hinge that holds a door, a power storage mechanism that applies a force in the closing direction to the door in a cylindrical case attached to the movable side hinge bracket, and a closing speed of the door. It consists of an auto-hinge body with a built-in speed adjustment mechanism for adjusting the speed and a gear mechanism that transmits the opening / closing operation of the movable hinge bracket to the force-storing mechanism. The speed adjustment is made up of a supported rotating shaft and a torsion spring wound around the rotating shaft, the lower end of which is engaged with the rotating shaft and the upper end of which is engaged with the cylindrical case. The mechanism has a male spline on the lower outer surface, a female screw for position adjustment on the inner surface, a hollow guide member attached to the upper end of the cylindrical case, and a feed to the lower inner surface. Female screw for A cylinder body having a lower end coupled to the rotary shaft and an upper end rotatably supported by the guide member, and an internal thread for feeding the cylinder body on the outer peripheral surface. A feed male screw to be screwed is formed, and a female spline that meshes with the male spline of the guide member is formed on the inner peripheral surface, and a piston disposed between the cylinder body and the guide member and a central portion A partition wall attached to the lower end of the piston, and a check valve provided in the partition wall to allow only working fluid to flow from the upper chamber to the lower chamber, and the partition wall at the lower end. It has a needle that penetrates the flow path of the wall, and is formed with a position adjusting male screw that is screwed with the position adjusting female screw of the guide member on the outer peripheral surface, and a flow rate adjusting valve that is inserted into the guide member. And the needle A first adjusting shaft part having a larger diameter and a second adjusting shaft part having a smaller diameter than the first adjusting shaft part are formed from the lower end side, and the first adjusting shaft part or the second adjusting shaft part is connected to the flow passage of the partition wall. It is designed to be placed inside.

【0023】[0023]

【作用】[Action]

上記ドアオートヒンジは、低温時でシリンダ本体に充填させた作動流体の粘性 が高いときには、流量調整バルブのニードルの第2調整軸部をピストンの仕切壁 の流通路に配置させて、流通路とニードルとの隙間を広く設定し、高温時で作動 流体の粘性が低いときには、ニードルの第1調整軸部を仕切壁の流通路に配置さ せて、流通路とニードルとの隙間を狭く設定して使用する。 When the viscosity of the working fluid filled in the cylinder body is high at a low temperature, the door auto hinge has the second adjusting shaft portion of the needle of the flow rate adjusting valve arranged in the flow passage of the partition wall of the piston so that the flow passage If the clearance between the needle and the needle is wide, and the viscosity of the working fluid is low at high temperatures, place the first adjusting shaft of the needle in the flow passage of the partition wall to set a narrow gap between the flow passage and the needle. To use.

【0024】 これにより、ニードルと流通路との隙間を通る作動流体の流通抵抗を低温時や 高温時に合せて設定でき、流量調整バルブを交換することなく、ドアの閉止速度 を常に最適な速度に調整できる。With this, the flow resistance of the working fluid passing through the gap between the needle and the flow passage can be set according to the low temperature or the high temperature, and the closing speed of the door can be always optimized without changing the flow rate adjusting valve. Can be adjusted.

【0025】[0025]

【実施例】【Example】

以下、この考案の実施例を図1乃至図4を参照して説明する。但し、図7及び 図9に示す従来技術と同一構成部材には同一符号を付して、説明は省略する。 An embodiment of the present invention will be described below with reference to FIGS. However, the same components as those of the conventional technique shown in FIGS. 7 and 9 are designated by the same reference numerals, and the description thereof will be omitted.

【0026】 本考案の特徴は図1及び図3に示す様に、速度調整機構(21)を構成してい る流量調整バルブ(42)のニードル(56)の先部を多段形状に形成し、環状 溝(63)を挟んで下側に大径の第1調整軸部(64)を形成し、上側に小径の 第2調整軸部(65)を形成してある。また第2調整軸部(65)から上端まで テーパになっている。第1調整軸部(64)は、高温時にピストン(37)の仕 切壁(52)に形成された流通路(53)との隙間が最適になるような径に形成 してある。また第2調整軸部(65)は、第1調整軸部(64)より小径で、低 温時に流通路(53)との隙間が最適になるような径に形成してある。The present invention is characterized in that, as shown in FIGS. 1 and 3, the tip of the needle (56) of the flow rate adjusting valve (42) constituting the speed adjusting mechanism (21) is formed in a multi-stage shape. A large-diameter first adjusting shaft portion (64) is formed on the lower side of the annular groove (63) and a small-diameter second adjusting shaft portion (65) is formed on the upper side. Further, the taper is made from the second adjusting shaft portion (65) to the upper end. The first adjusting shaft portion (64) is formed to have a diameter that optimizes the clearance between the first adjusting shaft portion (64) and the flow passage (53) formed in the partition wall (52) of the piston (37) at high temperature. The second adjusting shaft portion (65) has a diameter smaller than that of the first adjusting shaft portion (64) and is formed to have an optimum gap with the flow passage (53) when the temperature is low.

【0027】 また流量調整バルブ(42)の調整軸(55)の上端には調整用バルブギヤ( 60)を取付けてある。調整用バルブギヤ(60)は、図4に示す様に、U溝( 66)を円周等配位置に多数形成してあり、中央部に長孔(67)を形成し、こ の長孔(67)を調整軸(55)の上端部に形成した長円軸部(70)に嵌合さ せ、ねじ(71)にて取付けてある。従って、この調整用バルブギヤ(60)を 回転させることにより、調整軸(55)を回転させて第1調整軸部(64)或い は第2調整軸部(65)をピストン(37)の仕切壁(52)の流通路(53) 内に配置させる。An adjusting valve gear (60) is attached to the upper end of the adjusting shaft (55) of the flow rate adjusting valve (42). As shown in FIG. 4, the adjusting valve gear (60) has a large number of U-grooves (66) formed at evenly distributed positions on the circumference, and a long hole (67) is formed at the center of the adjustment valve gear (60). 67) is fitted to the elliptical shaft portion (70) formed at the upper end of the adjusting shaft (55) and is attached with the screw (71). Therefore, by rotating the adjusting valve gear (60), the adjusting shaft (55) is rotated to separate the first adjusting shaft portion (64) or the second adjusting shaft portion (65) from the piston (37). It is placed in the flow passage (53) of the wall (52).

【0028】 上記流量調整バルブ(42)を備えたオートドアヒンジは、高温時には図1に 示す様に、流量調整バルブ(42)のニードル(56)に形成した第1調整軸部 (64)をピストン(37)の仕切壁(52)の流通路(53)内に配置させる 。逆に低温時には図2に示す様にニードル(56)の第2調整軸部(65)を仕 切壁(52)の流通路(53)内に配置させる。The automatic door hinge provided with the flow rate adjusting valve (42) has a piston (1) for adjusting the first adjusting shaft portion (64) formed on the needle (56) of the flow rate adjusting valve (42) when the temperature is high, as shown in FIG. It is placed in the flow passage (53) of the partition wall (52) of (37). On the contrary, when the temperature is low, the second adjusting shaft portion (65) of the needle (56) is arranged in the flow passage (53) of the partition wall (52) as shown in FIG.

【0029】 すると、高温時には、シリンダ(35)内に充填した作動流体は粘性が低く流 動性が良くなっているが、それに合せて流量調整バルブ(42)のニードル(5 6)とピストン(37)の仕切壁(52)の流通路(53)との隙間は狭くなっ ており、ドア(2)を最適な速度で閉じる。また低温時には作動流体の粘性が高 く流動性が悪くなっているが、流量調整バルブ(42)のニードル(56)とピ ストン(37)の仕切壁(52)の流通路(53)との隙間が大きくなっており 、ドア(2)を最適な速度で閉じる。Then, when the temperature is high, the working fluid filled in the cylinder (35) has low viscosity and good fluidity, and accordingly, the needle (56) of the flow rate adjusting valve (42) and the piston ( The space between the partition wall (52) and the flow passage (53) of 37 is narrow, and the door (2) is closed at an optimum speed. At low temperature, the viscosity of the working fluid is high and the flowability is poor. However, the flow passage (53) of the partition wall (52) of the piston (37) and the needle (56) of the flow control valve (42) are The gap is large and the door (2) is closed at the optimum speed.

【0030】 このように流量調整バルブ(42)を回してピストン(37)に対する相対的 な位置を調整するだけで、高温時や低温時に関係なく最適な速度でドア(2)を 閉じることができる。In this way, the door (2) can be closed at an optimum speed regardless of the high temperature or the low temperature by merely adjusting the position relative to the piston (37) by rotating the flow rate adjusting valve (42). .

【0031】[0031]

【考案の効果】[Effect of device]

この考案によれば、低温時と高温時とで作動流体の粘性が変っても、オートヒ ンジ本体を分解する必要がなく、オートヒンジ本体に組込んだ速度調整機構の流 量調整バルブを回して、流量調整バルブのニードルに形成した第1調整軸部或い は第2調整軸部を、ピストンの仕切壁に形成された流通路内へ配置させることに より、低温時や高温時によってシリンダ本体内に充填させた作動流体の粘性が変 っても、流量調整バルブを交換することなくドアの閉止速度を任意に調整できる 。また流量調整バルブの交換が不要となるため、流量調整バルブの管理も不要と なり、面倒な作業から解放される。 According to this invention, even if the viscosity of the working fluid changes between low temperature and high temperature, it is not necessary to disassemble the auto hinge body, and the flow rate adjusting valve of the speed adjusting mechanism incorporated in the auto hinge body is turned. By arranging the first adjusting shaft portion or the second adjusting shaft portion formed on the needle of the flow rate adjusting valve into the flow passage formed on the partition wall of the piston, the cylinder body can be operated at low temperature or high temperature. Even if the viscosity of the working fluid filled inside changes, the closing speed of the door can be adjusted arbitrarily without replacing the flow rate adjusting valve. Moreover, since the flow rate adjusting valve does not need to be replaced, there is no need to manage the flow rate adjusting valve, which frees you from troublesome work.

【図面の簡単な説明】[Brief description of drawings]

【図1】本考案に係るオートドアヒンジの要部を示す断
面図
FIG. 1 is a sectional view showing a main part of an automatic door hinge according to the present invention.

【図2】本考案に係るオートドアヒンジの要部を示す断
面図
FIG. 2 is a sectional view showing a main part of an automatic door hinge according to the present invention.

【図3】本考案に係るニードルと仕切壁の流通路との関
係を示す拡大断面図
FIG. 3 is an enlarged sectional view showing the relationship between the needle and the flow passage of the partition wall according to the present invention.

【図4】本考案に係る流量調整バルブの平面図FIG. 4 is a plan view of a flow rate adjusting valve according to the present invention.

【図5】オートドアヒンジを装着したドアを示す斜視図FIG. 5 is a perspective view showing a door equipped with an automatic door hinge.

【図6】ドアを支持する上部ドアヒンジを示す断面図FIG. 6 is a cross-sectional view showing an upper door hinge that supports a door.

【図7】従来のオートドアヒンジを示す断面図FIG. 7 is a sectional view showing a conventional automatic door hinge.

【図8】ドアの開閉を伝達する歯車機構を示す底面図FIG. 8 is a bottom view showing a gear mechanism that transmits opening / closing of a door.

【図9】従来のオートドアヒンジの動作例を示す要部断
面図
FIG. 9 is a sectional view of an essential part showing an operation example of a conventional automatic door hinge.

【符号の説明】[Explanation of symbols]

2 ドア 5 オートヒンジ本体 14 可動ヒンジブラケット 20 蓄力機構 21 速度調整機構 22 筒状ケース 23 回転軸 25 回転歯車 26 トーションスプリング 36 シリンダ本体 37 ピストン 40 上部室 41 下部室 42 流量調整バルブ 43 ガイド部材 46 送り用雄ねじ 47 送り用雌ねじ 50 雌型スプライン 51 雄型スプライン 52 仕切壁 53 流通路 54 逆止弁 55 調整軸 56 ニードル 57 位置調整用雄ねじ 61 位置調整用雌ねじ 64 第1調整軸部 65 第2調整軸部 2 Door 5 Auto hinge main body 14 Movable hinge bracket 20 Power storage mechanism 21 Speed adjustment mechanism 22 Cylindrical case 23 Rotating shaft 25 Rotating gear 26 Torsion spring 36 Cylinder body 37 Piston 40 Upper chamber 41 Lower chamber 42 Flow rate adjusting valve 43 Guide member 46 Feeding male screw 47 Feeding female screw 50 Female spline 51 Male spline 52 Partition wall 53 Flow passage 54 Check valve 55 Adjusting shaft 56 Needle 57 Position adjusting male screw 61 Position adjusting female screw 64 First adjusting shaft 65 Second adjustment Shaft

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】開き戸式ドアの開閉時の回転中心近傍に取
付けるドア用オートヒンジであって、ドアを保持する下
部ドアヒンジの可動側ヒンジブラケットと、前記可動側
ヒンジブラケットに取付けられた筒状ケース内にドアへ
閉止方向の力を付与する蓄力機構と、ドアの閉止速度を
調整する速度調整機構を内蔵したオートヒンジ本体と、
前記可動ヒンジブラケットの開閉動作を前記蓄力機構へ
伝達する歯車機構とからなり、 前記蓄力機構を、前記筒状ケース内に回転自在に支持さ
れた回転軸と、前記回転軸に巻装され、下端部を回転軸
側に係合させ、上端部を前記筒状ケース側に係合させた
トーションスプリングとで構成し、 前記速度調整機構を、下部外周面に雄型スプラインを形
成し、内周面に位置調整用雌ねじを形成し、前記筒状ケ
ースの上端部に取付けられた中空のガイド部材と、下部
内周面に送り用雌ねじを形成し、前記筒状ケース内に収
容し、下端を前記回転軸に結合させ、上端を前記ガイド
部材に回転自在に支持させたシリンダ本体と、外周面に
前記シリンダ本体の送り用雌ねじと螺合する送り用雄ね
じを形成し、かつ内周面に前記ガイド部材の雄型スプラ
インに噛み合う雌型スプラインを形成し、前記シリンダ
本体とガイド部材との間に配置されたピストンと、中心
部に流通路を形成し、前記ピストンの下端部に取付けら
れた仕切壁と、前記仕切壁に設けられ、上部室から下部
室への作動流体の流通のみ許す逆止弁と、下端部に前記
仕切壁の流通路を貫通するニードルを有し、外周面に前
記ガイド部材の位置調整用雌ねじと螺合する位置調整用
雄ねじを形成し、前記ガイド部材内に挿入される流量調
整バルブとで構成し、 前記ニードルに下端側から大径の第1調整軸部と前記第
1調整軸部より小径の第2調整軸部とを形成し、前記第
1調整軸部若しくは第2調整軸部を前記仕切壁の流通路
内に選択的に配置させることを特徴とするドア用オート
ヒンジ。
1. An automatic door hinge that is mounted near the center of rotation when a hinged door is opened and closed, and a movable side hinge bracket of a lower door hinge that holds the door, and a tubular case attached to the movable side hinge bracket. A power storage mechanism that applies a force in the closing direction to the door, and an auto hinge body that has a speed adjustment mechanism that adjusts the closing speed of the door,
A gear mechanism that transmits the opening / closing operation of the movable hinge bracket to the power storage mechanism, the power storage mechanism being rotatably supported in the tubular case, and wound around the rotation shaft. A torsion spring having a lower end engaged with the rotating shaft side and an upper end engaged with the tubular case side, the speed adjusting mechanism having a male spline on a lower outer peripheral surface, A position adjusting female screw is formed on the peripheral surface, a hollow guide member attached to the upper end of the cylindrical case, and a feed female screw is formed on the lower inner peripheral surface, and is housed in the cylindrical case, and the lower end is formed. Is connected to the rotary shaft, the upper end of which is rotatably supported by the guide member, and the outer peripheral surface of which is formed with a feed male screw which is screwed into the female female feed of the cylinder body, and which is formed on the inner peripheral surface. Male spline of the guide member A piston that is formed between the cylinder body and the guide member and that forms a meshing female spline, a partition wall that forms a flow passage in the center portion, and is attached to the lower end portion of the piston, and the partition wall A check valve that is provided to allow only the working fluid to flow from the upper chamber to the lower chamber, has a needle that penetrates the flow passage of the partition wall at the lower end, and has a female screw for adjusting the position of the guide member on the outer peripheral surface. A male screw for position adjustment to be screwed is formed, and is constituted by a flow rate adjusting valve inserted into the guide member, and a first adjusting shaft part having a large diameter from the lower end side of the needle and a smaller diameter than the first adjusting shaft part. And a second adjusting shaft portion, and the first adjusting shaft portion or the second adjusting shaft portion is selectively arranged in the flow passage of the partition wall.
JP1992047646U 1992-07-08 1992-07-08 Auto hinge for door Expired - Lifetime JPH08456Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1992047646U JPH08456Y2 (en) 1992-07-08 1992-07-08 Auto hinge for door

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1992047646U JPH08456Y2 (en) 1992-07-08 1992-07-08 Auto hinge for door

Publications (2)

Publication Number Publication Date
JPH068663U true JPH068663U (en) 1994-02-04
JPH08456Y2 JPH08456Y2 (en) 1996-01-10

Family

ID=12781017

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1992047646U Expired - Lifetime JPH08456Y2 (en) 1992-07-08 1992-07-08 Auto hinge for door

Country Status (1)

Country Link
JP (1) JPH08456Y2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100381662B1 (en) * 2000-07-05 2003-04-23 윤남중 Door check
JP2008031843A (en) * 2007-10-23 2008-02-14 Nippon Door Check Mfg Corp Vertical axis type door closer
JP2023511989A (en) * 2020-09-22 2023-03-23 広東兆高金属科技有限公司 Two-way opening and closing door shaft

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5724839U (en) * 1980-07-16 1982-02-09

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5724839U (en) * 1980-07-16 1982-02-09

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100381662B1 (en) * 2000-07-05 2003-04-23 윤남중 Door check
JP2008031843A (en) * 2007-10-23 2008-02-14 Nippon Door Check Mfg Corp Vertical axis type door closer
JP2023511989A (en) * 2020-09-22 2023-03-23 広東兆高金属科技有限公司 Two-way opening and closing door shaft

Also Published As

Publication number Publication date
JPH08456Y2 (en) 1996-01-10

Similar Documents

Publication Publication Date Title
US5187835A (en) Door closer with rack and pinion, spring, and spring mounting plate
US7155776B2 (en) Multipurpose hinge apparatus having automatic return function
US4436280A (en) Valve actuator mechanism for lift-turn type valves
US3246362A (en) Door closer
US4414703A (en) Door closer and holder
JP7397533B2 (en) Self-closing hydraulic damping hinge
JPH068663U (en) Auto hinge for door
JP4510608B2 (en) Door braking device
CN111561538B (en) Rotary damper
US1921314A (en) Door closer and check
JPH0456192B2 (en)
KR100483362B1 (en) Oil pressure hinge
CA2445720A1 (en) Faucet handle retainer
CN109695739A (en) Direct-acting triple valve
JP7370846B2 (en) door closer
JPH0478793B2 (en)
DE19835375C2 (en) Gas shut-off valve
GB2145769A (en) Door closers
KR102587250B1 (en) A valve
CN219413588U (en) Rod-pull type ball valve for long and narrow space
DE102007037128A1 (en) Engine driven operating device for moving e.g. engine bonnet, of vehicle i.e. car, has coil spring arranged around spindle to press and to move device and closure part in moved position and opened position
JPH0633695B2 (en) Auto hinge for door
CN2165204Y (en) Improved oil door closer
JPH0478792B2 (en)
CN223893999U (en) Small shaft oil pressure cylinder hinge