JP2008031634A - Hanger rail mounting device for partition panel - Google Patents

Hanger rail mounting device for partition panel Download PDF

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JP2008031634A
JP2008031634A JP2006202971A JP2006202971A JP2008031634A JP 2008031634 A JP2008031634 A JP 2008031634A JP 2006202971 A JP2006202971 A JP 2006202971A JP 2006202971 A JP2006202971 A JP 2006202971A JP 2008031634 A JP2008031634 A JP 2008031634A
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hanger rail
base material
vibration
mounting device
partition panel
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JP4897380B2 (en
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Seiichi Goto
誠一 後藤
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Tachikawa Blind Manufacturing Co Ltd
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Tachikawa Blind Manufacturing Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a hanger rail mounting device which suppresses the propagation of a traveling sound of a hanger rail, and which facilitates the manufacture of the hanger rail and a bed material and the operation of assembling them. <P>SOLUTION: The hanger rail mounting device for a partition panel makes the hanger rail 28 for movably supporting the panel supported in a suspended state on the structural material of a building via the bed material 11 and a vibration-proof portion 12. The vibration-proof portion 12 is interposed between the bed material 11 and the structural material 13, and the hanger rail 28 is fixed to the bed material 11. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

この発明は、間仕切りパネルを移動可能に支持するハンガーレールを下地面に取付けるための取付装置に関するものである。   The present invention relates to an attachment device for attaching a hanger rail that movably supports a partition panel to a base surface.

間仕切りパネルは、多数枚のパネルがハンガーレールに沿って移動可能に吊下支持され、各パネルをハンガーレールに沿って召し合わせることにより室内空間を適宜に区画するものである。   The partition panel suspends and supports a large number of panels so as to be movable along the hanger rail, and appropriately divides the indoor space by summing each panel along the hanger rail.

このような間仕切りパネルのハンガーレールを建物の構造材に取付ける取付装置には、ハンガーレールと下地面との間に防振ゴムを介在させて、パネルの移動操作時に発生する走行音の上層階への伝播を防止するようにしたものがある。   In the mounting device that attaches the hanger rail of the partition panel to the structural material of the building, an anti-vibration rubber is interposed between the hanger rail and the base surface, to the upper floor of the running sound generated during the panel moving operation. There is something to prevent the propagation of.

図５は、ハンガーレール取付装置の従来例を示す。Ｃ形鋼で形成される下地材１は建物の構造材から吊下支持される吊り筋２に取着される。吊り筋２は構造材から所定間隔毎あるいは所定の位置で吊下支持され、下地材１の側面が各吊り筋２の下端部に溶接固定されている。従って、下地材１は構造材から吊り筋２を介して水平方向に吊下支持される。   FIG. 5 shows a conventional example of a hanger rail mounting device. A base material 1 formed of C-shaped steel is attached to a suspension bar 2 supported by suspension from a structural material of a building. The suspension bars 2 are suspended and supported from the structural material at predetermined intervals or at predetermined positions, and the side surfaces of the base material 1 are welded and fixed to the lower ends of the respective suspension bars 2. Accordingly, the base material 1 is supported by being suspended from the structural material in the horizontal direction via the suspension bars 2.

ハンガーレール３の上辺には、長手方向に所定間隔毎に取付孔４が設けられ、下地材１にも取付孔４と等間隔で挿通孔５が設けられる。そして、下地材１とハンガーレール３との間にゴム等の防振材６を介在させた状態で下方からハンガーレール３の取付孔４及び下地材１の挿通孔５にボルト７が挿通され、下地材１を貫通したボルト７の先端部にナット８が螺合されて、ハンガーレール３が下地材１に固定される。また、ナット８と下地材１との間にも防振材９が介在される。なお、ナット８は、図示しないがダブルナットとして、その緩みを防止するように構成される。   On the upper side of the hanger rail 3, mounting holes 4 are provided at predetermined intervals in the longitudinal direction, and the base material 1 is also provided with insertion holes 5 at equal intervals with the mounting holes 4. The bolt 7 is inserted from below into the mounting hole 4 of the hanger rail 3 and the insertion hole 5 of the base material 1 with a vibration isolating material 6 such as rubber interposed between the base material 1 and the hanger rail 3. A nut 8 is screwed to the tip of the bolt 7 that penetrates the base material 1, and the hanger rail 3 is fixed to the base material 1. Further, a vibration isolator 9 is also interposed between the nut 8 and the base material 1. Although not shown, the nut 8 is configured as a double nut so as to prevent looseness.

上記のように構成されたハンガーレール取付装置では、ハンガーレール３と下地材１との間及びナット８と下地材１との間に防振材６，９が介在されているので、ハンガーレール３内をパネルのランナーが移動してハンガーレール３に振動が発生しても、その振動は防振材６，９で吸収されて下地材１には伝達されない。従って、パネルの移動操作にともなう走行音の上層階への伝播が抑制される。   In the hanger rail mounting device configured as described above, since the vibration isolating materials 6 and 9 are interposed between the hanger rail 3 and the base material 1 and between the nut 8 and the base material 1, the hanger rail 3 Even if the runner of the panel moves to generate vibration in the hanger rail 3, the vibration is absorbed by the vibration isolating materials 6 and 9 and is not transmitted to the base material 1. Therefore, the propagation of the traveling sound to the upper floor accompanying the panel movement operation is suppressed.

特許文献１には、ハンガーレールと下地部材との間に防振材を介在させた構成が開示されている。
特許第３６６０８４７号公報 Patent Document 1 discloses a configuration in which a vibration isolator is interposed between the hanger rail and the base member.
Japanese Patent No. 3660847

上記のようなハンガーレール取付装置では、ハンガーレール３から下地材１にボルト７を挿通し、ハンガーレール３と下地材１との間に防振材６を介在させる構成であるため、現場での組み立てに先立って、ハンガーレール３と下地材１とに等間隔で取付孔４と挿通孔５をそれぞれ形成しておく必要がある。   In the hanger rail mounting apparatus as described above, the bolt 7 is inserted from the hanger rail 3 to the base material 1 and the vibration isolator 6 is interposed between the hanger rail 3 and the base material 1. Prior to the assembly, it is necessary to form the attachment holes 4 and the insertion holes 5 at equal intervals in the hanger rail 3 and the base material 1.

従って、取付孔４と挿通孔５のピッチの精度が低いと、ボルト７を取付孔４及び挿通孔５に挿通できなくなるため、ピッチの精度を十分に確保する必要がある。従って、ハンガーレール３に取付孔４を穿設し、下地材１に挿通孔５を穿設する作業が煩雑となるという問題点がある。また、取付孔４と挿通孔５の位置を現場で調整することもきわめて煩雑であった。   Therefore, if the pitch accuracy between the mounting hole 4 and the insertion hole 5 is low, the bolt 7 cannot be inserted into the mounting hole 4 and the insertion hole 5, so that it is necessary to sufficiently ensure the pitch accuracy. Therefore, there is a problem that the work of making the mounting hole 4 in the hanger rail 3 and making the insertion hole 5 in the base material 1 becomes complicated. Further, it is very complicated to adjust the positions of the mounting hole 4 and the insertion hole 5 on site.

特許文献１に記載された構成でも、上記と同様な問題点がある。
この発明の目的は、ハンガーレールの走行音の伝播を抑制し、かつハンガーレール及び下地材の製造と組立て作業を容易に行い得るハンガーレール取付装置を提供することにある。 The configuration described in Patent Document 1 has the same problem as described above.
An object of the present invention is to provide a hanger rail mounting device that can suppress the propagation of traveling sound of a hanger rail and can easily manufacture and assemble a hanger rail and a base material.

請求項１では、パネルを移動可能に支持するハンガーレールを下地材及び防振部を介して建物の構造材に吊下支持する間仕切りパネルのハンガーレール取付装置において、前記下地材と構造材との間に前記防振部を介在させ、前記下地材に前記ハンガーレールを固定した。   In Claim 1, in the hanger rail mounting apparatus of the partition panel which suspends and supports the hanger rail which supports a panel so that movement is possible to the structural material of a building via a base material and a vibration isolating part, the base material and the structural material The hanger rail was fixed to the base material with the vibration isolator interposed therebetween.

請求項２では、前記下地材には取付孔を等間隔に多数穿設し、前記構造材から吊下支持される吊り筋に対応する位置で、前記取付孔のいずれかに前記防振部を取着するとともに、該防振部を前記吊り筋に固定し、前記下地材に前記ハンガーレールを取着した。   According to a second aspect of the present invention, a large number of mounting holes are formed at equal intervals in the base material, and the vibration-proof portion is provided in any one of the mounting holes at a position corresponding to a hanger supported by the structural material. At the same time, the vibration isolator was fixed to the suspension bar, and the hanger rail was attached to the base material.

請求項３では、前記取付孔に挿通したボルトで前記防振部を下地材に固定した。
請求項４では、前記防振部は、前記ボルトで前記下地材に固定される一対の防振材と、前記一対の防振材に固定される主枠とを備え、前記主枠を前記吊り筋に溶接した。 In Claim 3, the said vibration isolator was fixed to the base material with the volt | bolt penetrated to the said attachment hole.
According to a fourth aspect of the present invention, the vibration isolating portion includes a pair of vibration isolating materials fixed to the base material with the bolts and a main frame fixed to the pair of vibration isolating materials, and the main frame is suspended from the suspension. Welded to the streaks.

請求項５では、前記ハンガーレールを前記下地材に溶接した。   In Claim 5, the said hanger rail was welded to the said base material.

本発明によれば、ハンガーレールの走行音の伝播を抑制し、かつハンガーレール及び下地材の製造と組立て作業を容易に行い得るハンガーレール取付装置を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, the hanger rail attachment apparatus which can suppress the propagation | transmission of the traveling sound of a hanger rail and can manufacture and assemble a hanger rail and a base material easily can be provided.

以下、この発明を具体化した一実施の形態を図面に従って説明する。図１に示すハンガーレール取付装置は、角型鋼管で形成される下地材１１が、図３及び図４に示すように、所定間隔毎にあるいは所定位置で防振部１２を介して吊り筋（構造材）１３に吊下支持される。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the hanger rail mounting apparatus shown in FIG. 1, the base material 11 formed of a square steel pipe is provided with suspension bars (at a predetermined interval or at predetermined positions via a vibration isolator 12 as shown in FIGS. 3 and 4). The structural member 13 is supported by suspension.

下地材１１及び防振部１２の具体的構成を説明すると、図２に示すように、下地材１１の上辺には下地材１１の長手方向に多数の取付孔１４が等間隔に形成されている。また、下地材１１の下辺には、前記取付孔１４に対応する位置に操作孔１５がそれぞれ形成されている。操作孔１５は前記取付孔１４に挿通されるボルト１６を操作するための工具を挿入するために形成されている。   A specific configuration of the base material 11 and the vibration isolator 12 will be described. As shown in FIG. 2, a large number of mounting holes 14 are formed at equal intervals in the longitudinal direction of the base material 11 on the upper side of the base material 11. . Further, on the lower side of the base material 11, operation holes 15 are respectively formed at positions corresponding to the mounting holes 14. The operation hole 15 is formed for inserting a tool for operating the bolt 16 inserted through the mounting hole 14.

前記防振部１２は、主に前記ボルト１６とナット１７、ゴム等の一対の防振材１８ａ，１８ｂ、押さえ板１９、パイプ２０及び主枠２１とからなっている。
前記主枠２１は金属の四角板の両側が上方に直角に屈曲されて側辺２１ａが形成され、中央部に防振材１８ａ，１８ｂを嵌合するための嵌合孔２２が形成されている。また、主枠２１上には金属の四角板状の補助板２３が載置され、その補助板２３にも主枠２１の嵌合孔２２と同径の嵌合孔２４が形成されている。 The vibration isolator 12 mainly comprises the bolt 16 and nut 17, a pair of vibration isolators 18a and 18b such as rubber, a pressing plate 19, a pipe 20 and a main frame 21.
In the main frame 21, both sides of a metal square plate are bent upward at a right angle to form a side 21a, and a fitting hole 22 for fitting the vibration isolators 18a and 18b is formed in the center. . Further, a metal square plate-shaped auxiliary plate 23 is placed on the main frame 21, and the auxiliary plate 23 is also formed with a fitting hole 24 having the same diameter as the fitting hole 22 of the main frame 21.

前記主枠２１及び補助板２３の嵌合孔２２，２４には、上方及び下方から一対の防振材１８ａ，１８ｂが嵌合孔２２，２４の周囲の主枠２１及び補助板２３を挟むように嵌合される。防振材１８ａ，１８ｂはゴム材で形成され、主枠２１及び補助板２３に当接する部分には、補強金具２６が嵌合されている。   In the fitting holes 22 and 24 of the main frame 21 and the auxiliary plate 23, a pair of vibration isolating materials 18a and 18b sandwich the main frame 21 and the auxiliary plate 23 around the fitting holes 22 and 24 from above and below. Fitted. The anti-vibration materials 18a and 18b are formed of a rubber material, and reinforcing metal fittings 26 are fitted into portions that contact the main frame 21 and the auxiliary plate 23.

前記防振材１８ａ，１８ｂの中心部には、前記パイプ２０が貫通され、そのパイプ２０には前記下地材１１の取付孔１４側からボルト１６が挿通されている。そして、防振材１８ａ，１８ｂの上方に突出したボルト１６の先端部には、前記押さえ板１９が嵌挿され、さらにナット１７が螺合されて、押さえ板１９と下地材１１との間で防振材１８ａ，１８ｂが圧縮される。   The pipe 20 passes through the center of the vibration isolator 18a, 18b, and a bolt 16 is inserted into the pipe 20 from the mounting hole 14 side of the base material 11. The presser plate 19 is inserted into the tip of the bolt 16 projecting above the vibration isolator 18a, 18b, and the nut 17 is screwed between the presser plate 19 and the base material 11. The anti-vibration materials 18a and 18b are compressed.

前記パイプ２０は、防振材１８ａ，１８ｂを圧縮しない状態では、押さえ板１９には当接しない長さとなっている。
前記主枠２１の側辺２１ａは前記吊り筋１３に溶接２７で固定される。そして、ハンガーレール２８は、その上辺が前記下地材１１の下辺に溶接２９で固定される。 The pipe 20 has a length that does not contact the holding plate 19 when the vibration isolators 18a and 18b are not compressed.
The side 21 a of the main frame 21 is fixed to the suspension bar 13 by welding 27. The upper side of the hanger rail 28 is fixed to the lower side of the base material 11 by welding 29.

このような構成により、ハンガーレール２８は吊り筋１３から防振部１２及び下地材１１を介して吊下支持される。
上記のようなハンガーレール取付装置によるハンガーレール２８の取付作業を説明する。 With this configuration, the hanger rail 28 is suspended and supported from the suspension bar 13 via the vibration isolator 12 and the base material 11.
The mounting operation of the hanger rail 28 by the above-described hanger rail mounting device will be described.

下地材１１は、現場への搬送に先立って、工場であらかじめ多数の取付孔１４及び操作孔１５が等間隔に形成されている。そして、下地材１１に対し吊り筋１３に対応する位置で防振部１２を取着する。   Prior to transportation to the site, the base material 11 has a large number of mounting holes 14 and operation holes 15 formed at equal intervals in advance at the factory. Then, the vibration isolator 12 is attached to the base material 11 at a position corresponding to the hanging bar 13.

すなわち、主枠２１及び補助板２３の嵌合孔２２，２４に防振材１８ａ，１８ｂを嵌合しパイプ２０を挿入する。そして、下地材１１の下方から取付孔１４を経て防振材１８ａ，１８ｂのパイプ２０にボルト１６を挿通し、ボルト１６の先端部に押さえ板１９を嵌挿し、さらにナット１７を螺合して締め付ければ、防振部１２が下地材１１に固定される。   That is, the vibration isolators 18a and 18b are fitted into the fitting holes 22 and 24 of the main frame 21 and the auxiliary plate 23, and the pipe 20 is inserted. Then, the bolt 16 is inserted into the pipe 20 of the vibration isolator 18a, 18b from below the base material 11 through the mounting hole 14, the presser plate 19 is inserted into the tip of the bolt 16, and the nut 17 is screwed. When tightened, the vibration isolator 12 is fixed to the base material 11.

次いで、主枠２１の側辺２１ａを吊り筋１３に溶接２７で固定する。そして、ハンガーレール２８を下地材１１に溶接２９で固定する。
図４に示すように、パネルを収納する格納庫３０では、多数枚のパネルがハンガーレール２８に集中して吊下支持されるので、下地材１１を吊下支持する吊り筋１３及び防振部１２の間隔を狭くして、強度を確保するようになっている。 Next, the side 21 a of the main frame 21 is fixed to the suspension bar 13 by welding 27. Then, the hanger rail 28 is fixed to the base material 11 by welding 29.
As shown in FIG. 4, in the hangar 30 that houses the panels, a large number of panels are suspended and supported on the hanger rail 28. The interval is narrowed to ensure strength.

上記のように構成されたハンガーレール取付装置では、次に示す作用効果を得ることができる。
（１）ハンガーレール２８を支持する下地材１１と吊り筋１３との間に防振部１２を介在させたので、ハンガーレール２８内を移動するランナーの走行音の上層階への伝播を防止することができる。
（２）防振部１２は下地材１１の多数の取付孔１４の中から、吊り筋１３に対応する位置の取付孔１４を選択して取り付けることができる。
（３）下地材１１に対し、ハンガーレール２８を溶接２９で固定するので、ハンガーレール２８に取付孔を設ける必要はない。また、下地材１１とハンガーレール２８との穴位置の調整は必要ないので、ハンガーレール２８の取付作業を容易に行うことができる。
（４）ハンガーレール２８に取付孔を穿設する工数を削減することができる。
（５）取付孔１４の間隔を狭くするほど、防振部１２の取付位置を吊り筋１３の位置に対応した最適の位置に調整することができる。
（６）主枠２１に補助板２３を重ねて、防振材１８ａ，１８ｂによる挟着部分の厚さを増大させているので、主枠２１を防振材１８ａ，１８ｂで安定して挟着することができる。 With the hanger rail mounting device configured as described above, the following operational effects can be obtained.
(1) Since the vibration isolator 12 is interposed between the base material 11 that supports the hanger rail 28 and the hanger 13, the propagation of the running sound of the runner moving in the hanger rail 28 to the upper floor is prevented. be able to.
(2) The vibration isolator 12 can be attached by selecting the attachment hole 14 at a position corresponding to the hanging bar 13 from the many attachment holes 14 of the base material 11.
(3) Since the hanger rail 28 is fixed to the base material 11 by welding 29, it is not necessary to provide an attachment hole in the hanger rail 28. Further, since it is not necessary to adjust the hole positions between the base material 11 and the hanger rail 28, the mounting work of the hanger rail 28 can be easily performed.
(4) The number of steps for forming the mounting hole in the hanger rail 28 can be reduced.
(5) The mounting position of the vibration isolator 12 can be adjusted to the optimum position corresponding to the position of the hanger 13 as the distance between the mounting holes 14 is reduced.
(6) Since the auxiliary plate 23 is overlapped on the main frame 21 to increase the thickness of the sandwiched portion by the vibration isolating materials 18a and 18b, the main frame 21 is stably sandwiched by the vibration isolating materials 18a and 18b. can do.

上記実施の形態は、以下の態様で実施してもよい。
・ハンガーレール２８は、吊下支持するパネルの重量に応じて他の構成のハンガーレールを使用してもよい。
・下地材は、Ｃ型鋼管あるいはＨ型鋼材を使用してもよい。 You may implement the said embodiment in the following aspects.
-As for the hanger rail 28, you may use the hanger rail of another structure according to the weight of the panel supported by suspension.
-C-type steel pipes or H-type steel materials may be used as the base material.

一実施の形態のハンガーレール取付装置を示す正面図である。It is a front view which shows the hanger rail attachment apparatus of one Embodiment. ハンガーレール取付装置を示す断面図である。It is sectional drawing which shows a hanger rail attachment apparatus. ハンガーレール取付装置で支持されたハンガーレールを示す側面図である。It is a side view which shows the hanger rail supported with the hanger rail attachment apparatus. ハンガーレール取付装置を示す平面図である。It is a top view which shows a hanger rail attachment apparatus. 従来例を示す断面図である。It is sectional drawing which shows a prior art example.

符号の説明Explanation of symbols

１１…下地材、１２…防振部、１３…構造材（吊り筋）、１８ａ，１８ｂ…防振材、２８…ハンガーレール、２７，２９…溶接。   DESCRIPTION OF SYMBOLS 11 ... Base material, 12 ... Anti-vibration part, 13 ... Structural material (hanging reinforcement), 18a, 18b ... Anti-vibration material, 28 ... Hanger rail, 27, 29 ... Welding.

Claims (5)

パネルを移動可能に支持するハンガーレールを下地材及び防振部を介して建物の構造材に吊下支持する間仕切りパネルのハンガーレール取付装置において、
前記下地材と構造材との間に前記防振部を介在させ、前記下地材に前記ハンガーレールを固定したことを特徴とする間仕切りパネルのハンガーレール取付装置。 In the hanger rail mounting device of the partition panel that suspends and supports the hanger rail that movably supports the panel on the structural material of the building via the base material and the vibration isolator,
A hanger rail mounting device for a partition panel, wherein the vibration isolator is interposed between the base material and the structural material, and the hanger rail is fixed to the base material. 前記下地材には取付孔を等間隔に多数穿設し、前記構造材から吊下支持される吊り筋に対応する位置で、前記取付孔のいずれかに前記防振部を取着するとともに、該防振部を前記吊り筋に固定し、前記下地材に前記ハンガーレールを取着したことを特徴とする請求項１記載の間仕切りパネルのハンガーレール取付装置。   A number of mounting holes are perforated at equal intervals in the base material, and the vibration-proof portion is attached to any one of the mounting holes at a position corresponding to a suspension line supported by the structure. 2. The hanger rail mounting device for a partition panel according to claim 1, wherein the vibration isolator is fixed to the suspension bar, and the hanger rail is attached to the base material. 前記取付孔に挿通したボルトで前記防振部を下地材に固定したことを特徴とする請求項２記載の間仕切りパネルのハンガーレール取付装置。   The hanger rail mounting device for a partition panel according to claim 2, wherein the vibration isolator is fixed to the base material with a bolt inserted into the mounting hole. 前記防振部は、
前記ボルトで前記下地材に固定される一対の防振材と、
前記一対の防振材に固定される主枠と
を備え、
前記主枠を前記吊り筋に溶接したことを特徴とする請求項３記載の間仕切りパネルのハンガーレール取付装置。 The vibration isolator is
A pair of vibration damping materials fixed to the base material with the bolts;
A main frame fixed to the pair of vibration damping materials,
4. The hanger rail mounting device for a partition panel according to claim 3, wherein the main frame is welded to the suspension bar. 前記ハンガーレールを前記下地材に溶接したことを特徴とする請求項１乃至４のいずれか１項に記載の間仕切りパネルのハンガーレール取付装置。   The hanger rail mounting device for a partition panel according to any one of claims 1 to 4, wherein the hanger rail is welded to the base material.
JP2006202971A 2006-07-26 2006-07-26 Hanger rail mounting device for partition panel Expired - Fee Related JP4897380B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210024335A (en) * 2019-08-22 2021-03-05 주식회사 지앤아이 Dustproof suspension device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0384381A (en) * 1989-08-24 1991-04-09 Mitsuo Hanazawa Cartridge type small low temperature storage equipment
JPH0442460Y2 (en) * 1984-09-04 1992-10-07
JP2002227506A (en) * 2001-01-31 2002-08-14 Okamura Corp Partition device in transfer section
JP2005048564A (en) * 2003-07-28 2005-02-24 Kg Paltec Co Ltd Installing device of rail for sash roller

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0442460Y2 (en) * 1984-09-04 1992-10-07
JPH0384381A (en) * 1989-08-24 1991-04-09 Mitsuo Hanazawa Cartridge type small low temperature storage equipment
JP2002227506A (en) * 2001-01-31 2002-08-14 Okamura Corp Partition device in transfer section
JP2005048564A (en) * 2003-07-28 2005-02-24 Kg Paltec Co Ltd Installing device of rail for sash roller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210024335A (en) * 2019-08-22 2021-03-05 주식회사 지앤아이 Dustproof suspension device
KR102260604B1 (en) 2019-08-22 2021-06-09 주식회사 지앤아이 Dustproof suspension device

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