JPH088235Y2 - Shock absorbers for building shutters - Google Patents
Shock absorbers for building shuttersInfo
- Publication number
- JPH088235Y2 JPH088235Y2 JP8138488U JP8138488U JPH088235Y2 JP H088235 Y2 JPH088235 Y2 JP H088235Y2 JP 8138488 U JP8138488 U JP 8138488U JP 8138488 U JP8138488 U JP 8138488U JP H088235 Y2 JPH088235 Y2 JP H088235Y2
- Authority
- JP
- Japan
- Prior art keywords
- shutter curtain
- damper
- shutter
- cylinder
- winding drum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Description
【考案の詳細な説明】 ［産業上の利用分野］ 本考案は、閉鎖作動時にその下降速度に制動を与えて
静粛に閉鎖できるようにした建物用シヤツターの緩衝装
置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a shock absorber for a building shutter, which can be quietly closed by braking the descending speed during closing operation.
［従来技術及び考案が解決しようとする問題点］ 一般に、この種手動式の建築用シヤツターにおいて
は、手などでシヤツターカーテンを押し下げることによ
つて閉鎖するようになつているが、このときシヤツター
カーテンが勢い良く押し下げられると、シヤツターカー
テン最下端の座板が床面に激しく衝接して騒音が発生す
るという問題が有り、特にこれが深夜等において発生す
ると近所迷惑も甚だしく好ましいものではなかつた。[Problems to be Solved by Prior Art and Invention] Generally, in this type of manual type building shutter, the shutter curtain is closed by pushing down with a hand or the like. At this time, the shutter is closed. If the tar curtain is pushed down vigorously, there is a problem that the seat plate at the bottom end of the shutter curtain violently collides with the floor surface and noise is generated. .
そこで、閉鎖速度に単純に制動を与えて減速すること
が提唱されるが、この制動がシヤツターカーテンの開放
時には逆に抵抗となつて働き、開放操作が重くなつて軽
快な開放操作が損なわれてしまうという欠点が生じて問
題となる。Therefore, it is proposed to simply apply braking to the closing speed to decelerate, but this braking works as a resistance when the shutter curtain is opened, which makes the opening operation heavy and impairs the light opening operation. There is a drawback that it will occur, which is a problem.
［問題を解決する手段］ 本考案は、上記の如き実情に鑑み、これらの欠点を一
掃することができる建物用シヤツターの緩衝装置を提供
することを目的として創案されたものであつて、シヤツ
ターカーテンの巻装をする巻胴が回動自在に支持される
支持軸に、シヤツターカーテンが全閉状態になる少し前
位置で巻胴側に干渉して巻胴とともに一体的に回動する
筒体を回動自在に設け、躯体側に、急速な負荷変動に対
してはこれを緩衝するよう反発し、継続的な負荷変動に
対してはこれを吸収するよう伸縮するダンパの基端部を
支持すると共に、前記筒体の先端部には、ダンパの先端
部に連結されて、筒体の回転に基づき押圧されてシヤツ
ターカーテンの閉鎖作動の緩衝を行うための連結部が突
出形成されていることを特徴とするものである。[Means for Solving the Problem] In view of the above-mentioned circumstances, the present invention was devised with the object of providing a shock absorber for a building shutter that can eliminate these drawbacks. A cylinder that rotates integrally with the winding drum by interfering with the winding drum side at a position slightly before the shutter curtain is fully closed on the support shaft on which the winding drum that winds the curtain is rotatably supported. The body is rotatably installed, and the base end of the damper that expands and contracts on the side of the body to absorb the rapid load fluctuations and to absorb the continuous load fluctuations. In addition to supporting, the distal end portion of the tubular body is formed with a connecting portion projectingly connected to the distal end portion of the damper and pressed by rotation of the tubular body to buffer the closing operation of the shutter curtain. It is characterized by being present.
そして本考案は、この構成によつて、シヤツターカー
テンの閉鎖作動時において、閉鎖作動時に制動を与える
が、この制動を自動的に解除して軽快に開放することが
できる様にしたものである。Further, according to the present invention, when the shutter curtain is closed, braking is applied when the shutter curtain is closed, but this braking can be automatically released and opened lightly. .
［実施例］ 次に、本考案の一実施例を図面に基づいて説明する。
図面において、１はビル、住宅等の開口部に建付けられ
る建物用シヤツターのシヤツターカーテンであつて、該
シヤツターカーテン１は、開口部上方に設けたシヤツタ
ーケース２に内装の巻胴３に巻装されており、該巻胴の
正逆回動によつてガイドレール４にガイドされながら昇
降開閉作動をするようになつていること等は何れも従来
通りである。[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.
In the drawings, reference numeral 1 denotes a shutter curtain of a building shutter installed in an opening of a building, a house or the like, and the shutter curtain 1 is a winding case 3 installed inside a shutter case 2 provided above the opening. It is the same as in the related art that it is wound up and down, and is opened and closed while being guided by the guide rail 4 by the forward and reverse rotation of the winding cylinder.
５は前記巻胴３のホイール3aを回動自在に支持すべく
シヤツターケース２の両側ブラケツト2aに懸架固定され
た支持軸であつて、該支持軸５に一端が支持されるコイ
ル式のバランス弾機６の他端は巻胴ホイール3aに連結さ
れており、そしてバランス弾機６は、開口部を閉鎖すべ
くシヤツターカーテン１を引き降ろす際に巻胴３が支持
軸５に対して回動することによつて巻き込まれて蓄勢さ
れ、繰出されたシヤツターカーテン１の自重下降力に抵
抗してバランスさせるものであるが、このものは従来公
知のものである。Reference numeral 5 denotes a support shaft suspended and fixed to the brackets 2a on both sides of the shutter case 2 so as to rotatably support the wheel 3a of the winding drum 3, and a coil type balance, one end of which is supported by the support shaft 5. The other end of the ammunition machine 6 is connected to the winding drum wheel 3a, and the balancing ammunition machine 6 rotates the winding drum 3 relative to the support shaft 5 when pulling down the shutter curtain 1 to close the opening. The shutter curtain 1 is energized and stored by being moved and balances against the downward force of the self-weight of the shutter curtain 1, which is a known one.
一方、７は一端が巻胴ホイール3aに支持された緩衝弾
機であつて、該緩衝弾機７の他端には係止フツク7aが形
成されている。また、支持軸５の外周には内筒（本考案
の筒体に相当する）８が自由回動自在に遊嵌し、さらに
該内筒８の外周には外筒９が自由回動自在に遊嵌してい
るが、内筒８に設けた突起8aが外筒９に軸芯方向に長く
形成した長溝9aに係合しており、これによつて外筒９
は、内筒８に対して軸回り方向については一体化される
が、軸芯方向については自由移動できるようになつてい
る。さらに外筒９には、前記緩衝弾機７のコイル線間に
遊嵌する作動爪9bが形成されている。On the other hand, 7 is a shock-absorbing machine whose one end is supported by the winding cylinder wheel 3a, and a locking hook 7a is formed at the other end of the shock-absorbing machine 7. An inner cylinder (corresponding to the cylinder of the present invention) 8 is freely rotatably fitted around the outer circumference of the support shaft 5, and an outer cylinder 9 is freely rotatably fitted around the outer circumference of the inner cylinder 8. Although it is loosely fitted, the projection 8a provided on the inner cylinder 8 is engaged with the long groove 9a formed in the outer cylinder 9 so as to be elongated in the axial direction, whereby the outer cylinder 9 is formed.
Is integrated with the inner cylinder 8 in the axial direction, but is freely movable in the axial direction. Further, the outer cylinder 9 is formed with an operating claw 9b which is loosely fitted between the coil wires of the buffer ammunition machine 7.
また、10は基端部がシヤツターケース２に支持さるダ
ンパであつて、該ダンパ10の先端部は、内筒８の先端部
に突設のブラケツト（本考案の連結部に相当する）8bに
連結ピン10aを介して連結支持されており、これによつ
て内筒８の支持軸５に対する自由な回動が規制される構
成になつている。そして、シヤツターカーテン１の全開
状態では、作動爪9bは緩衝弾機７の巻胴ホイール3a側位
置に最も偏寄しており、この状態から開口部を閉鎖すべ
くシヤツターカーテン１を引き降ろした場合、巻胴３が
支持軸５に対して回動することになるが、緩衝弾機７も
これとともに一体回動する。このとき外筒９には、作動
爪9bが緩衝弾機７の線に当つて緩衝弾機７と共回りする
方向の軽い負荷が働くが、外筒９は、前記ダンパ10によ
つて自由回動が規制された状態の内筒８に対し、軸回り
方向には一体化され、軸芯方向の移動のみ許容された状
態になるので、作動爪9b（外筒９）が前記回動する緩衝
弾機７の線に誘導されて巻胴ホイール3aから離れる第３
図矢印方向に強制移動せしめられる（尚、ダンパ10は前
記共回り程度の負荷では縮小しない設定になつている）
と共に、緩衝弾機７は自由回動状態になつて蓄勢される
ことはない。Further, 10 is a damper whose base end is supported by the shutter case 2, and the tip end of the damper 10 is a bracket (corresponding to the connecting portion of the present invention) 8b projecting from the tip end of the inner cylinder 8. Is connected to and supported by a connecting pin 10a, so that the free rotation of the inner cylinder 8 with respect to the support shaft 5 is restricted. In the fully opened state of the shutter curtain 1, the operating claw 9b is closest to the winding cylinder wheel 3a side position of the buffer ammunition 7, and from this state, the shutter curtain 1 is pulled down to close the opening. In this case, the winding drum 3 rotates with respect to the support shaft 5, but the buffer ammunition machine 7 also rotates integrally with this. At this time, a light load acts on the outer cylinder 9 in a direction in which the operating claw 9b hits the line of the buffer ammunition 7 and rotates together with the buffer ammunition 7, but the outer cylinder 9 is freely rotated by the damper 10. Since the inner cylinder 8 in which the movement is restricted is integrated in the axial direction and only the movement in the axial direction is allowed, the operating claw 9b (outer cylinder 9) buffers the rotation. The third which is guided by the line of the ammunition 7 and separates from the winding drum wheel 3a
It can be forcibly moved in the direction of the arrow in the figure (the damper 10 is set so as not to reduce under the same co-rotating load).
At the same time, the buffer ammunition 7 is not stored in the freely rotating state.
そして、シヤツターカーテン１の最下端に設けた座板
が床面に接する少し前位置に達すると、外筒９は、作動
爪9bが緩衝弾機７の係止フツク7aに係止することになつ
て、これ以上巻胴ホイール3aから離間する方向の移動が
規制されると共に、緩衝弾機７の前記自由回動が規制さ
れ、緩衝弾機７が蓄勢されようとする。これによつて作
動爪9bには、緩衝弾機７が蓄勢されようとする負荷が働
くが、この負荷が、外筒９、内筒８を経由して前記ダン
パ10を押圧する負荷になり、これをダンパ10が弾性的に
受け止めると共に、この実施例では緩衝弾機７の蓄勢力
も働いて、シヤツターカーテン１の下降に制動を与えて
減速させ、座板が床面に衝接するのを防止するように構
成されている。しかもダンパ10は、上記一時的な負荷が
働いた場合にはこれに対して弾性的に反発して負荷吸収
をして制動を与えるが、負荷が継続的に働いた場合に
は、これに反発することなく縮小変化して両当８、９を
緩衝弾機７の蓄勢解除が成される方向に回動せしめ、而
して全閉時に、緩衝弾機７による蓄勢力がシヤツターカ
ーテン１を開放する側に働いてしまうことを回避するよ
う構成されている。Then, when the seat plate provided at the lowermost end of the shutter curtain 1 reaches a position slightly in front of the floor surface in contact with the floor surface, the outer cylinder 9 causes the operating claw 9b to be locked by the locking hook 7a of the buffer ammunition machine 7. That is, the movement in the direction away from the winding cylinder wheel 3a is further restricted, and the free rotation of the buffer ammunition 7 is restricted, so that the buffer ammunition 7 tends to store energy. As a result, a load that acts to store the buffer ammunition 7 acts on the operating claw 9b, and this load becomes a load that presses the damper 10 via the outer cylinder 9 and the inner cylinder 8. The damper 10 elastically receives this, and in this embodiment, the stored energy of the buffer ammunition 7 also acts to brake the lowering of the shutter curtain 1 to decelerate it, so that the seat plate collides with the floor surface. Is configured to prevent Moreover, the damper 10 elastically repels the above temporary load when it acts and absorbs the load to provide braking, but when the load continuously works, it repels it. Without changing, the two hits 8 and 9 are rotated in the direction in which the energy storage of the buffer ammunition 7 is released, and when fully closed, the energy storage force of the buffer ammunition 7 causes the shutter curtain. It is configured so as to avoid working on the side of opening 1.
叙述の如く構成された本考案の実施例において、開口
部を閉鎖せしめるべくシヤツターカーテン１を下降させ
た場合に、前述したように座板が床面に達する少し以前
の段階で、作動爪9bが緩衝弾機７の係止フツク7aに係止
して緩衝弾機７を巻き込むことによる蓄勢力とダンパ10
の押圧による弾性的な反発力とが相乗的に働いて、シヤ
ツターカーテン１の下降に制動を与えて速度が減速せし
められて、座板が床面に激しく衝接することが回避さ
れ、静粛な閉鎖を行うことができる。In the embodiment of the present invention constructed as described above, when the shutter curtain 1 is lowered to close the opening, as described above, the operating pawl 9b is slightly before the seat plate reaches the floor surface. Is engaged with the locking hook 7a of the buffer ammunition 7 and the buffer ammunition 7 is wound up, and the damper 10 and
The elastic repulsive force due to the pressing of the shutter acts synergistically to brake the descent of the shutter curtain 1 and reduce the speed, so that the seat plate is prevented from violently abutting against the floor surface, and it is quiet. Closure can be performed.
この様に、本考案が実施されたものにおいては、シヤ
ツターカーテン１が全閉状態と成る少し前位置でカーテ
ン下降に制動を与えて減速し、静粛な全閉を行うことが
できるものであるが、この制動を与えた以降、このため
の作用負荷がダンパ10に対して継続的に働くことに成
り、従つてダンパ10は次第に縮小して緩衝弾機７の蓄勢
力を吸収する方向に作用し、この結果、下降速度を減速
するための制動力は自動的に解除されることになり、全
閉時にこれがシヤツターカーテン１を押し上げる方向に
作用して、カーテン閉鎖に不安が生じるという不具合も
なく、またシヤツターカーテン１を開放せしめる際にブ
レーキとなつて操作が重くなつてしまう等の不具合が生
じることもない。As described above, in the embodiment of the present invention, the curtain descent is braked and decelerated at a position slightly before the shutter curtain 1 is in the fully closed state so that the shutter curtain 1 can be quietly fully closed. However, after this braking is applied, the acting load for this continues to act on the damper 10, and accordingly, the damper 10 gradually shrinks in the direction of absorbing the stored force of the buffer ammunition 7. As a result, the braking force for decelerating the descending speed is automatically released, and this acts in the direction of pushing up the shutter curtain 1 when fully closed, causing anxiety about curtain closing. In addition, when the shutter curtain 1 is opened, there is no problem that the operation becomes heavy by acting as a brake.
しかもこのものは、緩衝弾機７とダンパ10とによる相
乗的な緩衝作用が働くため、急ブレーキ的な制動となる
ことがなく、従つてシヤツターカーテン１の下降がぎこ
ちなくなつてしまうことを有効に回避している点で好ま
しい。In addition, since the synergistic cushioning action of the cushion ammunition 7 and the damper 10 works, this one does not result in sudden braking, and accordingly the descent of the shutter curtain 1 is effectively awkward. It is preferable because it is avoided.
因みに、開放作動後、ダンパ10の復帰を行う必要が有
るが、これには、ダンパ10自身に弱い復帰弾機を内装し
たものを用いても良いが、この実施例においては、最上
昇時に作動爪9bが緩衝弾機７の巻胴ホイール3aとの連結
部側に前記係止フツク7aに係止するとは逆の関係で係止
する手段を設けてダンパ10の復帰を促すようにしても良
く、この様にすれば、上昇時においてもダンパ10を用い
た衝撃吸収もできることになる。Incidentally, it is necessary to restore the damper 10 after the opening operation.For this, the damper 10 itself may be used with a weak return ammunition installed, but in this embodiment, it is activated at the maximum ascent. The pawl 9b may be provided on the side of the connecting portion of the buffer ammunition machine 7 with the winding cylinder wheel 3a in the opposite relationship to the engagement with the engagement hook 7a so as to promote the return of the damper 10. By doing so, it is possible to absorb the shock using the damper 10 even during the ascent.
尚、本考案は前記実施例に限定されないものであるこ
とは勿論であり、例えば第６図に示す第二実施例のよう
に内外筒11、12を前記第一実施例のものとは逆の関係に
し、そして外筒（筒体）14の先端部に、ダンパ10の先端
に連結するための連結部12aを突出形成しても実施する
ことができる。Needless to say, the present invention is not limited to the above-described embodiment, and the inner and outer cylinders 11 and 12 are the same as those in the first embodiment, as in the second embodiment shown in FIG. It can also be implemented by forming a connecting portion 12a for connecting to the tip of the damper 10 at the tip of the outer cylinder (cylindrical body) 14 in a relationship.
また、第７図A,Bに示す第三実施例のように、ダンパ1
0の先端部を、内筒（筒体）14に連結しない構成でも実
施することができる。つまりこのものは、外筒13に、本
考案の連結部に相当する突起14aが設けられる内筒14を
キー溝嵌合させておき、巻胴３の回動に連繋して移動し
た突起14aが、ダンパ10に丁度接当するように位置設定
されたものであり、この様にしても実施することができ
る。Further, as in the third embodiment shown in FIGS. 7A and 7B, the damper 1
It is also possible to implement the configuration in which the tip portion of 0 is not connected to the inner cylinder (cylindrical body) 14. In other words, in this product, the outer cylinder 13 is fitted with the inner cylinder 14 having the projection 14a corresponding to the connecting portion of the present invention in the key groove, and the projection 14a that is moved in association with the rotation of the winding cylinder 3 is The position is set so as to just contact the damper 10, and it can be implemented in this way.
さらには、第８図A,B、第９図A,B、第10図，第11図に
示す第四、第五、第六、第七の各実施例のように緩衝弾
機のない構成としても良いのである。Furthermore, unlike the fourth, fifth, sixth, and seventh embodiments shown in FIGS. 8A, B, 9A, B, 10 and 11, there is no buffer ammunition. Is also good.
［作用効果］ 以上要するに、本考案は叙述の如く構成されたもので
あるから、シヤツターカーテンが全閉状態になる少し前
位置まで達すると、巻胴側に干渉した筒体がこれと一体
的に回動しようとするが、この回動力をダンパが反発に
緩衝して、シヤツターカーテンの閉鎖に制動を与えて減
速することになる。[Effects] In summary, since the present invention is configured as described above, when the shutter curtain reaches a position slightly before the fully closed state, the cylindrical body that interferes with the winding drum side is integrated with this. However, the damper buffers this turning power to repel the vehicle, and brakes the closing of the shutter curtain to decelerate.
このためシヤツターカーテン最下端の座板が激しく床
面に衝接してしまうことを確実に防止できることになつ
て、静粛な全閉操作を行うことができる。しかもこのダ
ンパには、前記反発による緩衝制動力が働いて減速させ
た以降、継続して負荷が働くことになり、そしてこの負
荷を吸収するようダンパは伸縮作動することに成り、従
つて制動作用が自動的に解除されて、シヤツターカーテ
ンの全閉に不安が生じたり、あるいは開放操作が重くな
つたりする不具合の発生もなく、軽快で円滑な開閉作動
を行うことができるものである。Therefore, it is possible to reliably prevent the seat plate at the lowermost end of the shutter curtain from violently colliding with the floor surface, and it is possible to perform a quiet fully closing operation. Moreover, after the buffer braking force due to the repulsion acts on the damper to decelerate it, a load is continuously applied, and the damper expands and contracts to absorb the load. When the shutter curtain is automatically released, there is no fear that the shutter curtain will be fully closed, or the opening operation will be heavy, and a light and smooth opening and closing operation can be performed.
図面は、本考案に係る建物用シヤツターの緩衝装置の実
施例を示したものであつて、第１図は建物用シヤツター
の概略正面図、第２図は要部斜視図、第３図は要部断面
図、第４図は要部立て断面図、第５図は作用説明図、第
６図は第二実施例を示す要部断面図、第７図A,Bは第三
実施例を示す要部斜視図、要部断面図、第８図はA,Bは
第四実施例を示す要部斜視図、要部断面図、第９図はA,
Bは第五実施例を示す要部斜視図、要部断面図、第10
図、第11図は第六、第七実施例を示す要部断面図であ
る。 図中、１はシヤツターカーテン、３は巻胴、５は支持
軸、７は緩衝弾機、８は内筒、９は外筒、10はダンパで
ある。The drawings show an embodiment of a shock absorber for a building shutter according to the present invention. FIG. 1 is a schematic front view of the building shutter, FIG. 2 is a perspective view of essential parts, and FIG. Partial cross-sectional view, FIG. 4 is a vertical cross-sectional view of a main part, FIG. 5 is an explanatory view of operation, FIG. 6 is a cross-sectional view of a main part showing a second embodiment, and FIGS. 7A and 7B show a third embodiment. A perspective view of a main part, a cross-sectional view of the main part, FIG. 8 is A, B is a perspective view of the main part showing a fourth embodiment, a cross-sectional view of the main part, and FIG. 9 is A,
B is a perspective view of essential parts, a sectional view of essential parts, showing the fifth embodiment.
FIG. 11 and FIG. 11 are cross-sectional views of essential parts showing sixth and seventh embodiments. In the figure, 1 is a shutter curtain, 3 is a winding drum, 5 is a support shaft, 7 is a buffer ammunition, 8 is an inner cylinder, 9 is an outer cylinder, and 10 is a damper.
Claims (1)
動自在に支持される支持軸に、シヤツターカーテンが全
閉状態になる少し前位置で巻胴側に干渉して巻胴ととも
に一体的に回動する筒体を回動自在に設け、躯体側に、
急速な負荷変動に対してはこれを緩衝するよう反発し、
継続的な負荷変動に対してはこれを吸収するよう伸縮す
るダンパの基端部を支持すると共に、前記筒体の先端部
には、ダンパの先端部に連結されて、筒体の回転に基づ
き押圧されてシヤツターカーテンの閉鎖作動の緩衝を行
うための連結部が突出形成されていることを特徴とする
建物用シヤツターの緩衝装置。1. A support shaft on which a winding drum for winding a shutter curtain is rotatably supported, and interferes with the winding drum side at a position slightly before the shutter curtain is fully closed, and together with the winding drum. A cylindrical body that rotates integrally is rotatably provided, and on the body side,
It repels against a rapid load change to buffer it,
It supports the base end of a damper that expands and contracts so as to absorb continuous load fluctuations, and is connected to the tip of the damper at the tip of the cylinder, which is based on the rotation of the cylinder. A shock absorbing device for a building shutter, wherein a connecting portion for pressing and closing the closing operation of the shutter curtain is formed to project.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8138488U JPH088235Y2 (en) | 1988-06-20 | 1988-06-20 | Shock absorbers for building shutters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8138488U JPH088235Y2 (en) | 1988-06-20 | 1988-06-20 | Shock absorbers for building shutters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH022498U JPH022498U (en) | 1990-01-09 |
| JPH088235Y2 true JPH088235Y2 (en) | 1996-03-06 |
Family
ID=31306167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8138488U Expired - Lifetime JPH088235Y2 (en) | 1988-06-20 | 1988-06-20 | Shock absorbers for building shutters |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH088235Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010053509A (en) * | 2008-08-26 | 2010-03-11 | Bunka Shutter Co Ltd | Opening and closing body device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3892972B2 (en) * | 1998-06-12 | 2007-03-14 | 不二ラテックス株式会社 | Roll screen winding device |
-
1988
- 1988-06-20 JP JP8138488U patent/JPH088235Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010053509A (en) * | 2008-08-26 | 2010-03-11 | Bunka Shutter Co Ltd | Opening and closing body device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH022498U (en) | 1990-01-09 |
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