JPH0633125Y2 - Single-jack type load release device for truss-shaped supporting beams - Google Patents
Single-jack type load release device for truss-shaped supporting beamsInfo
- Publication number
- JPH0633125Y2 JPH0633125Y2 JP1988061731U JP6173188U JPH0633125Y2 JP H0633125 Y2 JPH0633125 Y2 JP H0633125Y2 JP 1988061731 U JP1988061731 U JP 1988061731U JP 6173188 U JP6173188 U JP 6173188U JP H0633125 Y2 JPH0633125 Y2 JP H0633125Y2
- Authority
- JP
- Japan
- Prior art keywords
- lever
- lever mechanism
- bundle
- truss
- jack
- 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
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- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Description
【考案の詳細な説明】 「産業上の利用分野」 本考案は、特殊建築物に用いるトラス状支保梁のシング
ルジャッキ式荷重解除装置に係るものである。[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a single-jack type load releasing device for a truss-like supporting beam used in a special building.
「従来の技術と考案が解決しようとする課題」 従来の一般的各種コンクリート建物の施工では、スラブ
型枠を支保するためにしばしば仮設ビームが用いられて
いる（実開昭56-93444号公報、実公昭58-1558号公
報）。この場合、建物のスラブの厚さがせいぜい10〜20
mm内外のため、仮設ビームにかかる荷重も割合に小さ
く、適確に乗載荷重を支持でき、施工後も簡単に解体撤
去して他へ転用できる。"Problems to be solved by conventional techniques and devices" In the construction of various conventional general concrete buildings, a temporary beam is often used to support the slab formwork (Japanese Utility Model Publication No. 56-93444, (Actual Publication No. 58-1558). In this case, the thickness of the building slab is at most 10-20
Since it is inside or outside of mm, the load applied to the temporary beam is also relatively small, and it is possible to accurately support the loading load, and it is possible to easily dismantle and repurpose it even after construction.
しかし、特殊建築物における断面の大きな梁や厚さの大
きなスラブ（例えば600〜2000mm程度のもの）を構築す
る場合、甚大な乗載荷重を支える必要から、上述の如き
仮設ビームでは到底使用に耐え得ず、全く使用されてい
ない現状である。However, when building a beam with a large cross section or a slab with a large thickness (for example, about 600 to 2000 mm) in a special building, it is necessary to support a huge loading load, so the temporary beam as described above can not be used at all. It has not been obtained and is not used at all.
斯る点に鑑み、本出願人は、先に、下記の埋込み支保梁
工法を提案した。In view of such a point, the present applicant has previously proposed the following embedded support beam construction method.
この埋込み支保梁工法は、下フランジを有する鋼材から
成る上弦材と、該上弦の下面に取外し可能に装着した束
材及び下弦材とで形成したトラス状支保梁を用いるもの
であり、該トラス状支保梁を複数所定箇所に配置し、各
上弦材の下フランジに梁底、スラブ型等の適宜打込み型
枠を取り付け、該型枠上に所定の配筋、埋込み配管を施
して、コンクリートを打設し、該コンクリートの所要強
度発現後、それらのトラス状支保梁において、上弦材を
残し、束材及び下弦材を撤去するものである。This embedded support beam construction method uses a truss-shaped support beam formed by an upper chord member made of steel having a lower flange, and a bundle member and a lower chord member detachably attached to the lower surface of the upper chord. Place supporting beams at a plurality of prescribed locations, attach beam bottoms, slabs, and other appropriate driving formwork to the lower flanges of each upper chord member, and place the required reinforcements and embedded pipes on the formwork, and then cast concrete. After the required strength of the concrete has been developed, the upper chord members are left and the bundle members and the lower chord members are removed from the truss-shaped supporting beams.
この埋込み支保梁工法によれば、上述の難点を解消する
ことができる。According to this embedded support beam construction method, the above-mentioned difficulties can be solved.
本考案は、その一環として、上記トラス状支保梁におい
て、施工後の解除作業を容易にしようとするものであ
る。As a part thereof, the present invention intends to facilitate the releasing work after construction in the truss-like support beam.
つまり、そのような特殊建築物の場合、束材や下弦材に
は、施工時の多量のコンクリート自重により甚大な荷重
がかかるため、それに伴うかなりの弾性変形を生じてお
り、何らかの解体システムを用いることなくしては、束
材や下弦材を安全確実に解体撤去することは難しい。ま
た、解体箇所が高所でかつ十分な足場を確保できない所
などでは、荷重の解除が一層困難である。本考案は、か
かる問題点を解決しようとするものである。In other words, in the case of such a special building, since the bundle material and the lower chord material are subjected to a large load due to the large amount of concrete weight during construction, a considerable elastic deformation occurs due to that, and some kind of dismantling system is used. Without it, it is difficult to dismantle and remove the bundle material and lower chord material safely and reliably. In addition, it is more difficult to release the load in a place where the dismantling site is high and a sufficient scaffold cannot be secured. The present invention is intended to solve such a problem.
「課題を解決するための手段」 本考案は、下フランジを有する鋼材から成る上弦材と該
上弦材の下面に取外し可能に装着した束材及び下弦材と
で形成したトラス状支保梁において、上記束材に伸縮調
整手段を講じ、また、束材には、その伸縮調整手段を跨
がせて上部レバーと下部レバーとが上下に開閉するレバ
ー機構を配して、該レバー機構の上部レバーをその伸縮
調整手段の上側に、かつ、下部レバーをその伸縮調整手
段の下側に各々着脱自在に係合させると共に、該レバー
機構にこれを開閉させるジャッキを装備させて成る。[Means for Solving the Problems] The present invention provides a truss-like support beam formed by an upper chord member made of steel having a lower flange, a bundle member detachably attached to the lower surface of the upper chord member, and a lower chord member. The bundle member is provided with an expansion and contraction adjusting means, and the bundle member is provided with a lever mechanism for vertically opening and closing the upper lever and the lower lever across the expansion and contraction adjusting means, and the upper lever of the lever mechanism is arranged. On the upper side of the expansion / contraction adjusting means and on the lower side of the expansion / contraction adjusting means, the lower lever is detachably engaged, and the lever mechanism is equipped with a jack for opening / closing the lever mechanism.
「作用」 如上の構成であるから、束材及び下弦材の解体撤去に当
たっては、まず、レバー機構を束材に伸縮調整手段を跨
がせて係合させ、該レバー機構に装備させたジャッキを
作動させて、レバー機構を上部レバーと下部レバーとの
間に上下にやや開かせる。Because of the above-mentioned configuration, when dismantling and removing the bundle material and the lower chord member, first, the lever mechanism is engaged with the bundle material across the expansion and contraction adjusting means, and the jack mounted on the lever mechanism is engaged. Actuate to slightly open the lever mechanism up and down between the upper and lower levers.
これにより、伸縮調整手段にかかっていた荷重がレバー
機構及びジャッキに負担されることとなり、伸縮調整手
段は軽く操作できることとなる。As a result, the load applied to the expansion and contraction adjusting means is loaded on the lever mechanism and the jack, and the expansion and contraction adjusting means can be operated lightly.
そこで、伸縮調整手段を十分に縮小態勢にし、ジャッキ
を縮小させてレバー機構を取り外し、束材及び下弦材を
取り外す。Therefore, the expansion / contraction adjusting means is set in a sufficiently reduced state, the jack is reduced to remove the lever mechanism, and the bundle material and the lower chord material are removed.
「実施例」 図面は、本考案の実施例を示している。[Examples] The drawings show examples of the present invention.
この場合、トラス状支保梁Ａは、Ｈ形鋼による上弦材１
と、該上弦材の下面中央から取外し可能に垂設した束材
２と、上弦材の両端部近傍及び束材の下端に設けた接合
金物３，３，４と、該接合金物間の下弦材５，５とから
成る。In this case, the truss-shaped supporting beam A is the upper chord member 1 made of H-shaped steel.
A bundle 2 that is detachably hung from the center of the lower surface of the upper chord, joining metal pieces 3, 3, 4 provided near both ends of the upper chord and at the lower end of the bundle, and a lower chord between the joining pieces. It consists of 5 and 5.
束材２は、支持筒21の基端プレート211を上弦材１の下
フランジ11にボルト・ナットにより取外し可能に接合
し、該支持筒内に螺筒22を挿入すると共に、該螺筒にナ
ット23を螺合させて、該ナットを支持筒21の先端に突き
当て、また、螺筒22内に高さ調整用の多数のピン孔241
…を有するパイプ24を挿入して、選んだピン孔241にピ
ン25を差し込むことにより螺筒22と連係し、パイプ24の
先端に外向きフランジ242を設けて、その先端部に接合
金物４を嵌合装備させている。In the bundle 2, the base end plate 211 of the support cylinder 21 is detachably joined to the lower flange 11 of the upper chord member 1 by bolts and nuts, and the screw cylinder 22 is inserted into the support cylinder and the nut is attached to the screw cylinder. 23 are screwed together, the nut is abutted against the tip of the support cylinder 21, and a large number of pin holes 241 for height adjustment are provided in the screw cylinder 22.
By inserting the pipe 24 having ... And inserting the pin 25 into the selected pin hole 241, the pin 24 is linked to the screw cylinder 22, and the outward flange 242 is provided at the tip of the pipe 24. Fitted with equipment.
下弦材５，５は、両端を接合金物３，３，４に取外し可
能にピン結合51,52している。ボルト・ナットで結合し
てもよい。Both ends of the lower chord members 5, 5 are detachably pin-coupled 51, 52 to the metal joints 3, 3, 4. You may connect with a bolt and a nut.
なお、上弦材１にはむくりを与えるとよい。上弦材１の
接合金物３，３は、上弦材に対し溶接により接合して
も、ボルト・ナットにより取外し可能に接合してもよ
い。The upper chord member 1 may be peeled off. The joining metal parts 3, 3 of the upper chord member 1 may be joined to the upper chord member by welding or may be detachably joined by bolts and nuts.
上記束材２には、上下に開閉するレバー機構６を着脱自
在に係合させると共に、該レバー機構に、これを上下に
開閉させる１つのジャッキ７を着脱自在に装備させてい
る。A lever mechanism 6 that opens and closes vertically is removably engaged with the bundle 2, and one jack 7 that opens and closes the lever mechanism is detachably equipped to the lever mechanism 6.
レバー機構６は、上部と下部に、それぞれ左右一対のく
字状レバー61,61,62,62を、その屈曲内面を上下に対応
させて配し、左右相互をそれぞれ左右に開閉させるよう
縦軸63,64にて基端で枢着し、かつ、閉じた全てのく字
状レバー61,61,62,62の先端に、連通する水平の軸孔65
を設けて、着脱自在な横軸軸部材66により上部と下部の
く字状レバーを上下に開閉させるよう枢着している。The lever mechanism 6 has a pair of left and right doglegged levers 61, 61, 62, 62 on the upper and lower sides, respectively, with the bent inner surfaces corresponding to the upper and lower sides. A horizontal shaft hole 65 that communicates with the tips of all closed dogleg levers 61, 61, 62, 62 that are pivotally attached at their base ends at 63, 64.
Is provided, and the upper and lower dogleg levers are pivotally attached to each other by a detachable horizontal shaft member 66 so as to be opened and closed vertically.
また、上部と下部のく字状レバー61,61,62,62の中間部
対向面には、それぞれ上記パイプ24に嵌まる短筒状の取
付け金物67,68を装着している。これらの取付け金物
は、左右に二つ割した半筒671,671,681,681から成り、
これらを個々にく字状レバー61,61,62,62の中間部対向
面に横軸672,672,682,682にて枢着して、左右のく字状
レバー61,61,62,62を閉じることによりパイプ24に嵌着
し得るようにし、上部の取付け金物67には、上縁適所に
ピン25を逃げる切欠673,673を、下部の取付け金物68に
は、下縁適所にピン26,26に係合させる切欠683,683,68
4,684を設けており、もって、パイプ24に嵌めた下部の
取付け金物68を、これに対応させてパイプ24の適宜ピン
孔241,241に挿入したピン26,26に、切欠683,683,684,68
4を係合させることにより支持させ、他方、パイプ24に
嵌めた上部の取付け金物67の上縁を上記螺筒22の下端に
突き当てるようにしている。Further, on the facing surfaces of the upper and lower dogleg levers 61, 61, 62, 62 in the middle portion, short tubular fittings 67, 68 fitted into the pipe 24 are mounted. These fittings consist of half cylinders 671,671,681,681 that are divided into two parts on the left and right,
These are individually pivotally attached to the intermediate facing surfaces of the V-shaped levers 61, 61, 62, 62 by the horizontal shafts 672, 672, 682, 682, and the left and right V-shaped levers 61, 61, 62, 62 are closed to close the pipe 24. The upper mounting hardware 67 is provided with notches 673 and 673 for escaping the pin 25 at appropriate positions on the upper edge, and the lower mounting hardware 68 is provided with notches 683 and 683 for engaging the pins 26 and 26 at appropriate positions on the lower edge. , 68
4,684 are provided.Therefore, the lower mounting hardware 68 fitted to the pipe 24 is correspondingly provided with the pins 26,26 inserted into the appropriate pin holes 241,241 of the pipe 24, and the cutouts 683,683,684,68.
4 is engaged and supported, and on the other hand, the upper edge of the fitting metal 67 of the upper part fitted to the pipe 24 is made to abut against the lower end of the screw cylinder 22.
更に、上部と下部のく字状レバー61,61,62,62の基端部
対向面には、一対のジャッキ係合凹部69,69を形成して
いる。Further, a pair of jack engaging recesses 69, 69 are formed on the base end facing surfaces of the upper and lower dogleg levers 61, 61, 62, 62.
ジャッキ７は、エア、油圧等適宜であり、両端71,72を
上記ジャッキ係合凹部69,69に着脱自在に係合させるよ
うにしている。The jack 7 is of a suitable type such as air, hydraulic pressure, etc., and both ends 71, 72 are detachably engaged with the jack engaging recesses 69, 69.
如上の構成であり、使用に当たっては、あらかじめ、束
材２において、パイプ24のピン孔241…を適宜選定して
ピン25を差し込むと共に、ナット23を螺動させることに
より、束材２の長さを調整しておき、こうしたトラス状
支保梁Ａを複数所定箇所に配置し、各上弦材１の下フラ
ンジ11にデッキプレート、薄肉コンクリート板等の打込
み型枠ｂを取り付け、該型枠上に所要の配筋Ｃ、埋込み
配管等を施して、コンクリートＤを打設する。With the above-mentioned configuration, in use, the length of the bundle 2 is adjusted by previously selecting the pin holes 241 of the pipe 24 in the bundle 2 and inserting the pin 25 and screwing the nut 23. Is adjusted, a plurality of such truss-like supporting beams A are arranged at predetermined positions, and a driving mold b such as a deck plate or a thin concrete plate is attached to the lower flange 11 of each upper chord member 1 and is required on the mold. Reinforcing bar C, embedded piping, etc. are applied and concrete D is poured.
打設コンクリートＤに所要強度発現後、束材２及び下弦
材５，５を解体撤去するが、この際には、束材２のパイ
プ24にレバー機構６を取り付け、該レバー機構にジャッ
キ７を取り付ける。After the required strength is exhibited in the cast concrete D, the bundle 2 and the lower chords 5 and 5 are dismantled and removed. At this time, the lever mechanism 6 is attached to the pipe 24 of the bundle 2 and the jack 7 is attached to the lever mechanism. Install.
レバー機構６を取り付けるときは、先端にて横軸軸部材
66を外して上部と下部の左右一対のく字状レバー61,61,
62,62を左右に開き、取付け金物67,68をパイプ24に嵌め
て再び横軸軸部材66を取り付け、そして、パイプ24の適
所のピン孔241,241にピン26,26を挿入して、該ピンに下
部の取付け金物68の切欠683,683,684,684を係合させて
下部の取付け金物68を支持させ、上部の取付け金物67の
上縁を束材２の螺筒22の下端に突き当てる。また、取り
付けたレバー機構６の一対のジャッキ係合凹部69,69に
ジャッキ７の両端71,72を係合させる。When attaching the lever mechanism 6, the horizontal shaft member at the tip
Remove 66, and a pair of left and right dogleg levers 61, 61,
62, 62 are opened to the left and right, the fittings 67, 68 are fitted into the pipe 24, the horizontal shaft member 66 is attached again, and the pins 26, 26 are inserted into the pin holes 241, 241 in the proper places of the pipe 24, and the pins 26, 26 are inserted. The notches 683, 683, 684, 684 of the lower mounting hardware 68 are engaged with the lower mounting hardware 68 to support the lower mounting hardware 68, and the upper edge of the upper mounting hardware 67 is abutted against the lower end of the screw cylinder 22 of the bundle 2. Further, both ends 71, 72 of the jack 7 are engaged with the pair of jack engaging recesses 69, 69 of the attached lever mechanism 6.
次いで、ジャッキ７を適宜に伸長させて、レバー機構６
の上部と下部のく字状レバー61,61,62,62を開く。これ
により、束材２において、螺筒22からピン25を介してパ
イプ24にかかっていた荷重がレバー機構６及びジャッキ
７に負担されることとなり、ピン25は荷重から解放され
る。したがって、ピン25は軽く引き抜くことができる。Next, the jack 7 is appropriately extended and the lever mechanism 6
Open the upper and lower dogleg levers 61, 61, 62, 62. As a result, in the bundle 2, the load applied to the pipe 24 from the screw cylinder 22 via the pin 25 is borne by the lever mechanism 6 and the jack 7, and the pin 25 is released from the load. Therefore, the pin 25 can be lightly pulled out.
ピン25を抜いた後、ジャッキ７を縮小させる。これによ
り、パイプ24は螺筒22中に進入し、束材２及び下弦材
５，５に加わっていた荷重が解除されることとなる。After pulling out the pin 25, the jack 7 is reduced. As a result, the pipe 24 enters the screw cylinder 22 and the load applied to the bundle 2 and the lower chords 5 and 5 is released.
そこで、束材２及び下弦材５，５を解体撤去すればよ
い。Therefore, the bundle 2 and the lower chords 5 and 5 may be disassembled and removed.
「考案の効果」 本考案によれば、束材に設けた伸縮調整手段を跨がせて
上部レバーと下部レバーとが上下に開閉するレバー機構
を配し、該レバー機構の上部レバーをその伸縮調整手段
の上側に、かつ、下部レバーをその伸縮調整手段の下側
に各々着脱自在に係合させると共に、該レバー機構にこ
れを開閉させるジャッキを装備させているので、レバー
機構は支保にあっては邪魔にならないよう取り外してお
くことができ、また、束材及び下弦材の解体撤去に当た
っては、束材や下弦材に多量のコンクリートからの甚大
な荷重に伴うかなりの弾性変形があっても、そのレバー
機構を束材の上記所要箇所へ係合させ、ジャッキを働か
せて上部レバーと下部レバーとの間で上下にやや開かせ
ることにより、伸縮調整手段に加わる荷重を一時的にそ
のレバー機構及びジャッキに簡単にかつ的確に負担させ
ることができ、伸縮調整手段に加わっている甚大な荷重
をきわめて容易にかつ速やかに解除できて、したがっ
て、伸縮調整手段を無荷重状態で容易に縮小させること
ができて、束材及び下弦材を安全確実に解体撤去でき
る。勿論、高所でがっちりとした足場を確保できない所
などでも容易に行うことができる。[Advantage of Invention] According to the present invention, a lever mechanism that opens and closes the upper lever and the lower lever by straddling the expansion and contraction adjusting means provided on the bundle is arranged, and the upper lever of the lever mechanism is expanded and contracted. Since the lower lever is detachably engaged with the upper side of the adjusting means and the lower side of the expansion / contraction adjusting means, and the lever mechanism is equipped with a jack for opening and closing the lever mechanism, the lever mechanism is supported. It can be removed so that it does not get in the way, and even when the bundle material and lower chord material are dismantled and removed, even if the bundle material and lower chord material undergo considerable elastic deformation due to a large load from concrete. , The lever mechanism is engaged with the above-mentioned required portion of the bundle, and the jack is operated to slightly open vertically between the upper lever and the lower lever, so that the load applied to the expansion and contraction adjusting means is temporarily changed. The lever mechanism and the jack can be easily and accurately loaded, and the enormous load applied to the expansion and contraction adjusting means can be released very easily and quickly, and therefore the expansion and contraction adjusting means can be easily reduced in the unloaded state. Therefore, the bundle material and the lower chord material can be disassembled and removed safely and reliably. Of course, it can be easily performed even in a high place where a firm footing cannot be secured.
図面は、本考案の実施例で、第１図は、側面図、第２図
は、束材の拡大断面図、第３図は、レバー機構及びジャ
ッキとその取付け手段を示す拡大側面図、第４図は、同
截断平面図である。 Ａ…トラス状支保梁、Ｂ…打込み型枠 Ｃ…配筋、Ｄ…コンクリート １…上弦材、２…束材 ３，４…接合金物、５…下弦材 ６…レバー機構、７…ジャッキ 11…下フランジ、21…支持筒 22…螺筒、23…ナット 24…パイプ、25,26…ピン 61,62…く字状レバー 63,64…縦軸、65…軸孔 66…横軸軸部材、67,68…取付け金物 69…ジャッキ係合凹部 671,681…半筒、672,682…横軸 673,683,684…切欠1 is a side view, FIG. 2 is an enlarged cross-sectional view of a bundle, and FIG. 3 is an enlarged side view showing a lever mechanism, a jack and its mounting means. FIG. 4 is a cutaway plan view. A ... Truss-shaped supporting beam, B ... Driving form C ... Reinforcement, D ... Concrete 1 ... Upper chord material, 2 ... Bundle material 3, 4 ... Joining metal, 5 ... Lower chord material 6 ... Lever mechanism, 7 ... Jack 11 ... Lower flange, 21 ... Support tube 22 ... Spiral tube, 23 ... Nut 24 ... Pipe, 25,26 ... Pin 61, 62 ... L-shaped lever 63, 64 ... Vertical axis, 65 ... Shaft hole 66 ... Horizontal axis shaft member, 67,68… Mounting hardware 69… Jack engaging recess 671,681… Half cylinder, 672,682… Horizontal shaft 673,683,684… Notch
Claims (1)
該上弦材の下面に取外し可能に装着した束材及び下弦材
とで形成したトラス状支保梁において、上記束材に伸縮
調整手段を講じ、また、束材には、その伸縮調整手段を
跨がせて上部レバーと下部レバーとが上下に開閉するレ
バー機構を配して、該レバー機構の上部レバーをその伸
縮調整手段の上側に、かつ、下部レバーをその伸縮調整
手段の下側に各々着脱自在に係合させると共に、該レバ
ー機構にこれを開閉させるジャッキを装備させたことを
特徴とするトラス状支保梁のシングルジャッキ式荷重解
除装置。1. A truss-like support beam formed by an upper chord member made of steel having a lower flange, a bundle member removably attached to the lower surface of the upper chord member, and a lower chord member, wherein expansion and contraction adjusting means are provided for the bundle member. Further, the bundle member is provided with a lever mechanism that opens and closes the upper lever and the lower lever by straddling the expansion and contraction adjusting means, and the upper lever of the lever mechanism is arranged above the expansion and contraction adjusting means. A single jack type load release of truss-like support beam, characterized in that the lower lever is removably engaged with the lower side of the expansion and contraction adjusting means, and the lever mechanism is equipped with a jack for opening and closing the lever mechanism. apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988061731U JPH0633125Y2 (en) | 1988-05-11 | 1988-05-11 | Single-jack type load release device for truss-shaped supporting beams |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988061731U JPH0633125Y2 (en) | 1988-05-11 | 1988-05-11 | Single-jack type load release device for truss-shaped supporting beams |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01168656U JPH01168656U (en) | 1989-11-28 |
| JPH0633125Y2 true JPH0633125Y2 (en) | 1994-08-31 |
Family
ID=31287379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988061731U Expired - Lifetime JPH0633125Y2 (en) | 1988-05-11 | 1988-05-11 | Single-jack type load release device for truss-shaped supporting beams |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0633125Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS581558U (en) * | 1981-06-24 | 1983-01-07 | 株式会社リコー | Printing device paper feed mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5693444U (en) * | 1979-12-19 | 1981-07-24 |
-
1988
- 1988-05-11 JP JP1988061731U patent/JPH0633125Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS581558U (en) * | 1981-06-24 | 1983-01-07 | 株式会社リコー | Printing device paper feed mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01168656U (en) | 1989-11-28 |
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