JPS5878918A - Transferring device of long square bar - Google Patents
Transferring device of long square barInfo
- Publication number
- JPS5878918A JPS5878918A JP17563481A JP17563481A JPS5878918A JP S5878918 A JPS5878918 A JP S5878918A JP 17563481 A JP17563481 A JP 17563481A JP 17563481 A JP17563481 A JP 17563481A JP S5878918 A JPS5878918 A JP S5878918A
- Authority
- JP
- Japan
- Prior art keywords
- individual
- freight car
- slab
- long square
- screen
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G57/00—Stacking of articles
- B65G57/02—Stacking of articles by adding to the top of the stack
- B65G57/03—Stacking of articles by adding to the top of the stack from above
- B65G57/06—Gates for releasing articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Specific Conveyance Elements (AREA)
- Stacking Of Articles And Auxiliary Devices (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はす（い上げた長尺角材を他の運搬手段へ整然と
積み重ね移載する装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for orderly stacking and transferring hoisted long rectangular timbers to other transport means.
第１１１！１，１１１１図の如（、長尺で角形断面を有
する鉄鋳片１を地上の受台鵞からす（い上げて貨車３に
積み移す場合、鉄鋳片が未だｓｏｏ’ｃ以上の高温を銀
している時には、す７テングマグネツトを利用する限界
を超えているから一般的にはクロークレーンを利用して
貨車３へすくい上げ移載している。As shown in Fig. 111!1, 1111, when lifting a long iron slab 1 with a rectangular cross section to a pedestal on the ground and loading it onto a freight car 3, the iron slab is still more than soo'c. When the high temperature of silver is being heated, it exceeds the limit of using a 7-bar magnet, so generally a claw crane is used to scoop up and transfer it to freight car 3.
クロークレージ４はトロリー５からコラム・を上下動自
在に参上装置７のロープＳで吊り、このコラム６の下端
にコの字形の４木のクローＵ、ｔＺ。The cloak rack 4 is suspended from a trolley 5 by a rope S of a climbing device 7 so as to be able to move vertically, and at the lower end of the column 6 are four U-shaped wooden claws U and tZ.
肋、１４を水平間隔をあけて取り付けられている。Ribs, 14, are attached at horizontal intervals.
そして、地上の受台言上にある鋳片１を複数本同時にク
ロー、１１．１２．１３．１４の上下動です吃い上げそ
のまま貨車３へ向けてクロークレーン４自身の走行力で
移動する。その後に、１１３図の如く、クロー１１．１
２．１３．１４を貨車３上で下げて鋳片ｌを貨車３に積
み移すのである。Then, a plurality of cast slabs 1 on the ground platform are simultaneously clawed, lifted up and moved in the vertical motion of 11, 12, 13, and 14, and moved directly toward the freight car 3 by the running force of the claw crane 4. After that, as shown in Figure 113, Claw 11.1
2, 13, and 14 are lowered onto the freight car 3 and the slab l is transferred to the freight car 3.
従来、この積み移す作業においては、クローＵ。Conventionally, in this transfer work, Claw U was used.
１２．１３．１４が抜は出るための空間をあけるために
、第３図の如鴫、貨車３へは鋳片ｌの長手方向と一文す
る枕木９．ｌＯを鋳片１の下方上介在しながらクロー１
１．１２．１３．１４をす畷い上げる方法を採用してい
た。12.13.14 In order to make space for the parts to be pulled out, a sleeper 9. Claw 1 while interposing lO below and above slab 1.
1, 12, 13, and 14 were adopted.
このような従来方法による積み移しによれば。According to such conventional method of transfer.
枕木９．ｉｏの会計高さ分だけ積載効率が悪化する欠点
が生じ番、°また、鋳片１の冷却をまつてからり７テイ
ングマグネツトで吸着吊り上げを行えば枕木９．ｉｏな
しに効率よ曵積み付は得る。しかし。Sleeper 9. This has the disadvantage that the loading efficiency deteriorates by the height of the slat 1.Also, if the slab 1 is cooled down and then lifted by suction using a 7-taing magnet, the sleeper 9. Efficiency can be achieved without IO. but.
この場合には、鋳片ｌを圧延する前に再度加熱気層を加
えないといけないから大急なエネルギー損失をと也なう
欠点が生′じるし、冷却過程に時間を費やす欠点も生じ
る。エネルギー損失の観点において、枕木Ｓ、ｔＯを利
用してクロークレージで積み付けする方法にあっては、
枕木９．ｉｏの介在によりて生じた空間に鋳片１の表面
が露出するから貨車輸送中に鋳片１が早畷冷却し、エネ
ルギー損失が大−い欠点が見うけられる。In this case, the heating air layer must be added again before rolling the slab, which has the disadvantage of sudden energy loss, and the disadvantage that the cooling process takes time. . From the perspective of energy loss, the method of loading in a cloakroom using sleepers S and tO:
Sleeper 9. Since the surface of the slab 1 is exposed in the space created by the intervening io, the slab 1 cools down rapidly during transportation by freight cars, resulting in a large energy loss.
本発明の目的ξ−す畷い占げ下げ手段による積み移し作
業において長尺角材を効率＊＜運畿手段に積み重ねるこ
とにある。そして、本発明の付随的な目的として、１１
然と積み重ねることや、長尺角材が高温な場合にその高
温、エネルギーの情夫をともなうことな曵積み移すこと
のできる装置を提供することを會んでいる、
以下に本発明の一実施例を第４図から１１７図ま１の各
図に基づいて説明する。The object of the present invention is to stack long square timbers efficiently *< by means of transport in a transfer operation using means for transporting. And, as an incidental object of the present invention, 11
An embodiment of the present invention is described below. The explanation will be given based on each of the figures from Fig. 4 to Fig. 117 and Fig. 1.
本実施例はクロークレーンの上下動自在なコラム６に取
り付いたりａ？ｕｓ ＩＬ ＩＬ １４ですくい上げた
高温な鋳片１を鉄道レールｂ、１６を車輪１７゜謔で走
行する貨車３に積み重ねる例である。１１４ｍの如＜、
りａ−１１，ＩＬ ｕｓ ｕ上ニす（、Ｌ％上げられた
複数本の角形長尺鋳片ｌは合計水平幅寸法ｊを有す各と
ともに１個りの鋳片ｌの水平幅寸法にと対角寸法りを有
する定形断面部材である。This embodiment is attached to the vertically movable column 6 of a claw crane. This is an example in which hot slabs 1 scooped up by IL 14 are stacked on a freight car 3 running on railway rails b, 16 with wheels 17 degrees. Like 114m
ri a-11, IL us u upper Nis (, L% raised plural rectangular elongated slabs l are each having a total horizontal width dimension j, and the horizontal width dimension of one slab l is It is a regular cross-sectional member having diagonal dimensions.
貨車３上の片側には、第４図、１８８図の如（、角柱状
の３末のストレバー１９．２０． ｍを水平間隔をあけ
て立設しである。もう一方の片側には、第一図、第５ａ
ｌｌの如鳴、角柱状の６本の術立＝、爲。On one side of the freight car 3, as shown in Fig. 4 and Fig. 188, prismatic three-ended strever bars 19.20 m are vertically installed at horizontal intervals. Figure 1, 5a
The sound of ll, six prismatic jutsu stands =, 爲.
２４、２５．２６． ｖが水平間隔をあけて立設しであ
る。24, 25.26. v are vertically spaced apart.
さらに、貨車３上には上方よりみて第５図の如（形状の
防熱ａｍが各衝立２２． Ｚｌ、 ２４．２５．２６゜
ｎの外側を通るようにして立設される。この防熱壁篤の
内側面には各衝立２２．２Ｂ、 ２４．２Ｂ、 ｓ、茸
の外側面が固定されている。このことにより、各衝立２
２．２３．２４．２５．２６．２７と防熱壁鴻とが互い
に襠部材の機能をはたし合い鋳片１やクロー１１゜１２
：１３．１４の衝突に対してで伽るだけ強い強度を有す
るようにしである。Further, on the freight car 3, a heat insulating wall having a shape as shown in FIG. The outer surface of each of the screens 22.2B, 24.2B, s and mushrooms is fixed to the inner surface of the screen.
2.23.24.25.26.27 and the heat-insulating wall bolt mutually function as gore members, and the cast slab 1 and the claw 11°12
:13.14 It is designed to have a strong enough strength to withstand collisions.
第４図に示す各衝立２２． ｓ、 ｍ、 ２５．２６．
１７と各ストッパー１９．ｍ、ｍとの各内側面間隔寸法
りは、各−片１の合計水平幅寸法ｌに対角寸法りから水
平幅寸法Ｘを差し引いた寸法を和した水平間隔寸法未満
とされる。よつて、第６図の如く、内傭晶閤隔寸法り内
に各節に１を納め１時には、余裕寸法畠が生じることに
なり、寸法り範囲内に合計水平開隔寸法ｔの鋳片１群を
審ｉにおろし入れるようにしである。
′本実施例において、各クローｕ、 ｕ、 １３．
１４ですくい上げた複数の鋳片１を貨車３へおろす作業
は次の如畷成される。Each screen 22 shown in FIG. s, m, 25.26.
17 and each stopper 19. The distance between the inner surfaces of m and m is less than the horizontal distance obtained by adding the sum of the total horizontal width l of each piece 1 and the diagonal dimension minus the horizontal width X. Therefore, as shown in Fig. 6, when 1 is placed in each node within the inner spacing dimension, an allowance dimension field will be generated, and a slab with a total horizontal spacing dimension t will be produced within the dimension range. The plan is to send the first group to trial i.
'In this embodiment, each claw u, u, 13.
The work of lowering the plurality of slabs 1 scooped up in step 14 onto the freight car 3 is carried out as follows.
即ち、１１４−図の如く、貨車８の上方から各クローｚ
ｔ、 １２． ｍ、 １４を降下させて、第Ｓ図の如く
、各クローｕ、 １２．１３．１４の水千閏隔閤に各ス
トッパー騰、ｍ、ｍを通す、このようにすると、第４閣
の如畷、各クローｕ、 認、ｕ、１４上に支えられた各
鋳片ｌは各ストッパーｍ、ｍ、！ｌと各衝立ｎ。That is, as shown in FIG. 114, each claw z is
t, 12. Lower M and 14 and pass each stopper, m and m, through each claw u and 12, 13 and 14 water spacing, as shown in Figure S. In this way, the 4th cabinet will be Nawate, each claw u, each slab l supported on ken, u, 14 each stopper m, m,! l and each screen n.
鵡、 ｍ、 ！５．震、訂の水平間隔寸法り内に納まる
。Parrot, m,! 5. It fits within the horizontal spacing dimensions of the earthquake and revision.
このような納まり状態の後に、各クローｕ、 ｉ２゜１
３．１４を第４図における右方ヘクロークレーンの走行
力により水平移動させる。このようにす為とまず、最右
端側の鋳片１が各ストッパーｔｓ、 ！＋）。After this condition, each claw u, i2゜1
3.14 is moved horizontally by the running force of the right hand crane in Figure 4. In order to do this, first, the rightmost slab 1 is connected to each stopper ts, ! +).
４の内側面に当りて受は止められる。この受は止め状態
は第６図に示す通りであり、この状態において最左端側
・、即ち各クロー１１．１２．１３．１４の先端側にあ
る鋳片ｌと各衝立２２．２３． ｍ、 ２５．２６゜４
の間に余裕寸法１があく０次に、さらに各クローｔｉ、
ｔｚ、 １３．１４を右方へ水平に移動すると、各ス
トッパー１９．２１）、ｌ！ｌで右方の移動を止められ
た各鋳片１は右方へ水平に移動する各クロー１１．１２
゜錦、１４の先端から次々に貨車３上へ落ちてゆ鴫。The catch is stopped when it hits the inner surface of 4. This receiver is in the stopped state as shown in FIG. 6, and in this state, the slab l on the leftmost side, that is, the tip side of each claw 11, 12, 13, 14, and each screen 22, 23. m, 25.26゜4
There is a margin dimension 1 between the 0th order, and each claw ti,
tz, 13.14 horizontally to the right, each stopper 19.21), l! Each slab 1 whose movement to the right is stopped by l is moved horizontally to the right by each claw 11.12
゜Nishiki, 14 drops fell one after another onto freight car 3 from the tip.
二の落ちてゆ曵状態は１１７図の如曵であつて、各衝立
２２．２３．２４．２５．２！ｌ、 ｆｆと各りａ−１
９ｅｗａガの先−偶に来た鋳片ｌとの閤にあいた対角寸
法りよりも少ないす伽まへ落ちる。よって、落ちた鋳片
１は角部が各衝立２２． ｎｉ、 ２４． ｍ、 ｍ、
ＷＩに当って、落ち込み時の同転が防がれる。このた
めに落ち込み時に回転して鋳片１の水平幅方向が上下方
向に立つ姿勢となることな曵貨車３上に落ちる。さらに
各クロー１１１．ｍ、ｌを右方へ水平移動させると、先
に落ち込んだ鋳片１にひきつづいて次々と金部の鋳片ｌ
が各クローｔＯ，Ｓ、 為から貨車３上へ落ち込んでゆ
吃、この−に、先に落ち込んだ鋳片１と次にＩｌｌ込む
鋳片ｌの間には鋳片１の対角寸法り以上の水平開隔寸法
を生しないから鋳片１の回転が先に落ち込んだ鋳片ｌに
よって止められ各クローｔｏ、 ｚ、 ！ｌ上に執つて
いた状態と同し姿勢で貨車Ｓ上に落ち込み移ＩＩｒＬる
。なお、衝立２２．２１． ｓ、 ｓ、 ｓ、 ！７を
のぞいて防熱ａｍにより鋳片ｌの回転を止めても貴い。The second falling state is as shown in Figure 117, and each screen is 22.23.24.25.2! l, ff and each a-1
At the end of the 9ewa moth, it falls into a space that is smaller than the diagonal dimension of the gap between the slab and the slab that came to it. Therefore, the corners of the fallen slab 1 are attached to each screen 22. ni, 24. m, m,
Hitting WI prevents the same roll when falling. For this reason, when it falls, it rotates and falls onto the towing wagon 3, where the horizontal width direction of the slab 1 does not stand in the vertical direction. Furthermore, each claw 111. When m and l are horizontally moved to the right, the slab l of the metal part successively follows the slab 1 that fell first.
As each claw falls onto the freight car 3, there is a distance greater than the diagonal dimension of the slab 1 between the slab 1 that fell first and the slab I that falls next. Since the horizontal gap dimension of 1 is not produced, the rotation of the slab 1 is stopped by the slab L that fell first, and each claw to, z, ! IIrL falls onto the freight car S in the same position as it was on the l. In addition, the screen 22.21. s, s, s, ! Except for No. 7, it is also useful to stop the rotation of the slab l using a heat shield am.
このようにして何Ｊｌも貨車８上に積み移すと、各上下
段の鋳片１閤に枕木を介在させることな（移載すること
がで−る。よって、従来、枕木を介在させていた上下空
調も鋳片１１ｍ１＠空閤に利用して積載効率が向上する
。さらには（鋳片１を實寧畠上に向は讐落し込む時の落
し込み水平す−ま閤隔は落ち込む鋳片１の対角寸法り未
満でｉるから、各クロー鰺−ｗｓｔｓにＷＩ執したま家
の状態で各鋳片１を貨車８へ１１然と移−で−る、移載
終了後は、荷電ずれヤ荷こぼれを各衝立２２． ｍ、
ｍ、 ！、 １１゜茸と各ストッパー１９．２０． ｎ
で防Ｖながら鋳片１を貨車輸送する。In this way, when a number of liters of slabs are transferred onto the freight car 8, it is possible to transfer the slabs on each of the upper and lower tiers without intervening sleepers. The upper and lower air conditioning is also used for empty casting of 11m1 of slabs to improve loading efficiency.Furthermore, (when slab 1 is dropped onto the Jinning Hatake, the horizontal gap between the slabs and the gap between the slabs is lowered.) Since the diagonal dimension of 1 is less than 1, each slab 1 is transferred to the freight car 8 in a single step while keeping each slab 1 in its original condition.After the transfer is completed, the charging Each screen 22.m,
m,! , 11° mushrooms and each stopper 19.20. n
The slab 1 is transported by freight car while being protected from V.
鋳片ｌの高温状部が冷却されないうちにこの鋳片ｌを貨
車３で圧延機側へ輸送せねばならないが、鋳片ｌを第４
１１０如く、枕木を介在さ曽る二とな吃積執効率真＜書
に積み込むと、−片会体の放熱面積が少な吃なつて冷却
進度が透電なる利点がある。さらには、鋳片１を移載す
るために必要な上方と右方の開口部を残して、他の側御
はすベニ防熱ａＳで閾んであろから鋳片ｌの保温効果が
真゛（て温度エネルギー損失が一纏少な曵なる利点があ
る。また、枕木看介在させるための機械設備中手間を必
要とせぬので迅速なる移載作業がで―て鋳片ｌの冷却進
行を防止できる。The slab l must be transported to the rolling mill by the freight car 3 before the high-temperature part of the slab l is cooled down.
110, there is an advantage that the cooling progress can be made conductive by reducing the heat dissipation area of the two-piece assembly when it is loaded into a double-layered cooling system with intervening sleepers. Furthermore, the upper and right openings necessary for transferring the slab 1 are left open, and the other side panels are covered with plywood heat insulation aS, so that the heat retention effect of the slab 1 is maximized. This has the advantage of reducing thermal energy loss.Also, since no mechanical equipment is required for guarding the sleepers, the transfer work can be carried out quickly and the progress of cooling of the slab can be prevented.
以上の如曵、本発明によれば、す曵い上げた長尺角材の
移載において枕木を介在さぜることな畷長尺角材の積載
が行えるのでその積載効率を向上できる効果がある。As described above, according to the present invention, it is possible to load long square timbers in a row without intervening sleepers during the transfer of the long square timbers that have been hauled up, thereby improving the loading efficiency.
第１図はクロークレーンの全体図、第２図は第ｉｌｌの
側ｗａｎ、第Ｓ図は従来方法によ為貨車への移載作−状
態を示す正面図、第４図は本発明の一実施例によ為移載
作桑状簡を示す一部断画表示による正面図、第Ｓ図は１
１４図で示した本発明の一実施例による貨車とクローと
の平面配置図、第・図は本発明の一実施例による移載作
業の鋳片蕩し込み１薗の状態を示す模式図、第７１１は
１１６１ｍに示した鋳片の落し込み時の状態を示す模式
図である。
！・・・・・・鋳片、３・・・・・・貨車、４・・・・
・・クロークレーン、６・・・・・・コラム、１・・・
・・・巻上装置、８・・・・・・ロープ、１１．１２．
１３．１４・・・・・・クロー、１９．り、２１・・・
・・・ストッパー、２２．２Ｂ、 ２４．２５．２６．
ｖ・・・・・・衝立、沼・・・・・・防熱壁、ｈ・・
・・・・−片の対角寸法、Ｌ・・・・・・ストッパーと
衝立との゛内側面開隔寸法、Ｋ・・・・・・鋳片の水平
幅寸法、ｌ・・・・・・鋳片の合計水平幅寸法、ａ・・
・・・・余裕寸法
才１ｒＡ
才２図・
才３図
才４図
才５図
才６■Fig. 1 is an overall view of the cloak crane, Fig. 2 is a side view of the illumination crane, Fig. S is a front view showing the state of transfer to a freight car by the conventional method, and Fig. 4 is a diagram of the present invention. Figure S is a partially cutaway front view showing a mulberry paper prepared for transfer according to an example.
FIG. 14 is a plan layout of a freight car and a claw according to an embodiment of the present invention, and FIG. No. 711 is a schematic diagram showing the state of the slab shown at 1161m when it is dropped. !・・・・・・Slab, 3・・・ Freight car, 4・・・・
...claw crane, 6...column, 1...
...Hoisting device, 8...Rope, 11.12.
13.14...Crow, 19. ri, 21...
...stopper, 22.2B, 24.25.26.
v...screen, swamp...heatproof wall, h...
・・・・・・Diagonal dimension of the piece, L...Inner side opening dimension between the stopper and screen, K...Horizontal width dimension of the slab, L...・Total horizontal width dimension of slab, a...
...Marginal dimensions: 1rA, 2, 3, 4, 5, 6
Claims (1)
長尺角材を運搬手段に執り移すＩＩｉ置において、薗配
運一手段の片側に１記す曵い上げアームの平行間隔間を
上下に通る配置でストッパーを立設し、ｔｌｌｌｌｅ片
側に向い合うもう一方の片側に衝立を、この衝立と前記
ストッパーとの各内側面開隔が前記すくい上げアーム上
の全角材の合計水平幅間隔以上にあ畷位置に立設したこ
とを特徴とした長尺角材の移載装置。 ２、ＷＩｌｌ！内側面間隔を、全角材の合計水平幅開隔
に角材１本当りの対角寸法から角材１本島りの水平幅寸
法を差σ引いた寸法を和した水平開隔寸法未満に設定し
たことを待機とした特許請求の範囲の第１項にｍｅｌｔ
の長尺角材の移載装置。 Ｓ＊配運搬手段はストッパーを立役した片側と上方とが
開口した防熱壁を衝立の外側を遜るように備えた貨車で
あることを特徴とする特許請求の箇−０１１１項に１！
職の長尺角材の移載装置。 ４、 前記衝立は防熱層であることを特徴とした特許請
求の一一の第１項に記載の長尺角材の移載装置。 ５、 薗記す鬼い上げアームはクレーンから上下動自在
に支持したクローであることを特徴とする特許請求の範
■の第１項に記載の長尺角材の移＊＊＊。[Scope of Claims] 1. In the IIi configuration in which long square timbers on scooping arms arranged parallel to each other on a horizontal plane are transferred to a conveyance means, the distance between the parallel distances of the scooping arms as indicated by 1 on one side of the conveyance means. A stopper is erected in such a way that it passes up and down, and a screen is placed on one side facing the other side, and the distance between each inner surface of this screen and the stopper is the total horizontal width distance of the full-width timber on the scooping arm. The above long square timber transfer device is characterized in that it is installed upright in the ridge position. 2. Will! The inner surface spacing is set to less than the horizontal gap dimension which is the sum of the total horizontal width gap of the full square timbers and the diagonal dimension of one square timber minus the difference σ of the horizontal width dimension of one island of square timbers. Melt in the first claim of the standby claim
Transfer equipment for long square materials. Item 1 in claim 0111, characterized in that the S* distribution means is a freight car equipped with a heat-insulating wall that is open on one side with a stopper and an upper side so as to be inferior to the outside of the screen!
Equipment for transferring long square timbers. 4. The long square material transfer device according to claim 11, wherein the screen is a heat-insulating layer. 5. The transportation of long square timbers according to item 1 of claim (2), wherein the lifting arm is a claw supported vertically from a crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17563481A JPS5878918A (en) | 1981-11-04 | 1981-11-04 | Transferring device of long square bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17563481A JPS5878918A (en) | 1981-11-04 | 1981-11-04 | Transferring device of long square bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5878918A true JPS5878918A (en) | 1983-05-12 |
Family
ID=15999510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17563481A Pending JPS5878918A (en) | 1981-11-04 | 1981-11-04 | Transferring device of long square bar |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5878918A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223462A (en) * | 1975-08-11 | 1977-02-22 | Hoover Seng Co | Tiltable chair |
-
1981
- 1981-11-04 JP JP17563481A patent/JPS5878918A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5223462A (en) * | 1975-08-11 | 1977-02-22 | Hoover Seng Co | Tiltable chair |
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