200917997 九、發明說明： 【發明所屬之技術領域】 卓 月：關於-床組結構，肖別是關於一種具有收合 桌板之床组結構。使 移出或收合平貼^於庆尸：而要嶋自床板組尾端 ' 。灸床尾板前，有效節省空間之使用。 【先前技術】 正當般使用之床組，設計上多以身體機能功能 :的使用者立場來考量，單純只提供睡眠功用，益 =用。即使是所韻機能床，亦多在於_其床塾舒適之 * —或增加可調整其床面角度提供不同的躺臥角度之功 :件:般者是臥病在床的病人’若想在床上用餐或處理 τ ’只此自他處移用可承置物件之道具來達成目標。 / 门"習2來做為承置物件之活動式桌板，包括有常見的 水Ά將-桌板兩側分別設-側板，利用側板來 支牙㈣板’使料直接將該η型承置架置於床墊之上，由 :床塾具有相當的柔軟度，當使用者略為調整姿勢時，可能 =门型承置架產生傾斜狀況，而使放置在桌板上的物件 、'’又因其直接架立於床上，相對的偈限了使用者的床上 的活動空間。 在醫院中有另—種常見之活動式桌板，係為一具 兩之〔字型活動桌’其包括一桌板’一支桿套件及一〔字说 動結構，將支桿套件頂端接合桌板單—側面，支桿套件底^ 200917997 則固定於c字滑動結構上支桿套件使桌板與該〔字·骨 固定高度空間’因一般病床結構，其床板底 〜吊一地面財—定距離，該〔字滑動結構可滑移至床板 下方，而使該活動桌板可輕鬆推移至床板上方。 然除了病床外之一般床組，其床板组與地板之間並未 容納該滑動結構進人之空間，匚字型活動桌僅能推 夕木k ’使用者仍需大幅度調整姿勢，才能靠近該活勿式 桌板’使用上並不枝，且賴叙桌板結躺必須佔據一 定空間存放，不利於空間利用。 又如中華民國專利第M242072號專利案中，其床用之 桌板係於床組及桌板底部各設置一框轉構件，利用一支桿兩 T分別與床組及桌板之梅轉構件結合，以將該桌板可固定於 木組，於桌板下方另設有—輔助腳架，使該輔助腳架固定於 地Γ床墊上’用以支撐桌板的重量。此床用之桌，雖然可 以向或棱向架設於床組上使用，但使用時之架設 固定於床塾上時，床塾均為具有柔軟度之結構，過 度支撐易造成床墊變形，H访 使用者的床上活動”的缺點/ W置架㈣’有限制 又如中華民國專利公開號第⑼524⑴號專利案中，宜 ==用隸的床架附屬桌結構，該附屬桌主要係利用: 二=床木之框桿上設有—框板’框板可供固設可相對折 δ的弟一、二桌板，且中笛— Μ 、二桌板開設有折合結構，附 =亚搭配;7固設於床架内側面的抵靠桿，藉此當附屬桌 、—桌板向内翻出時’桌板可利用抵靠桿的作用呈水 200917997 此類型之桌板係套合於床架所設之框架中當其 :〜匡木私出後，桌面之延伸之距雜有限，使用者 凋整位置’以靠近桌板’又因該〜〜、 内之桿件支撐，桌板的承重力較小板僅仰相設於床架 【發明内容】 本發明所欲解決之技術問題·· 、、舌知各式活動桌面’特別是在病房之間所設置之 式桌面’其除了於取用時有組褒不便的缺點外，且因均 佔有-定固定空間’不易收納而造成空間間置浪費。又一般 活動式桌面往往將桌板的支揮點設置於床墊上，未考量床^ 具有彈性，不適合承置重物，且錢通常只能提供—平面承 置物件的功能，不能因應使用者之需求，配合彈整桌板角度 方便作業。 又 緣此’本發明之主要目的即是在提供一種具有節省使 用空間’並可方便取用與收納的可收合桌板之床組結構，需 使用桌板時將其由床尾板處移出架起並移動至適#位置，用 畢時則移回收合放置於床尾板，與床組結構形成一整體組 合。 本發明另-目的在提供不受床舖使用狀況限制之活動 式桌板，使桌板水平懸立於床墊上方，使用時不必因桌板的 存在，而移動床塾上任何物件，且利用一對支架的支樓，使 200917997 桌板具有較佳的承重力，使用者可以輕鬆的在床上處理事 務。 本發明另一目的在提供-個可多角度使用之桌板，經 由與桌板連接之桌板結合結構，使桌板產生—傾斜角度，讓 桌面除了可以水平狀態承置物品外，尚可以將桌板略以傾 斜’方便使用者作其他功能之運用。 本發明解決問題之技術手段： 本發明爲角午決習知技術之問題所採用之技術手段，係 在床板組之左右兩側床板，各設置—呈水平方向延伸之導 槽，-對支架，該二支架底端各以一結合轴構件與導㈣士 合’利用支架料槽及結合轴構件相結合，使桌板可自就 板處移出後’呈水平方向移動至床組之適當位置，使用完 畢，可將桌板滑移至床尾，並收合與床尾板—起疊放。70 支架頂端以-桌板結合結構結合於桌板底面，利用二 .支支架連接桌板與床組，當支架伸起時，可使桌板與床塾之 間保持-定高度之麟，不景彡響床墊上任何陳設或物件放 置。又該支架底端係利用結合轴構件與床側板接合，可提供 支架具有-支樓點而產生足夠的支樓力，使桌板^以承目、 當的重量，發揮承置物件作用。 又 又經由與桌板連接之桌板結合結構，可使活動桌 生傾斜角度’桌面除了可以水平狀態承置物品外，尚可以 桌板略以傾斜，方便使用者作其他功能之運用。 ： 200917997 本發明對照先前技術之功效： ，相較於現有技術，本發明可以讓一般使 鬆將桌板自床組床床尾板處 σ以巧 夠立署田〜， 极處私出’亚將桌板調整至床面上方 桌敍必擔心床面上因被褥雜陳而無法平穩 置，可且：用仪僅需將桌板收合疊合於床组床尾板位 且/、木..且結合成-體’不必再單獨佔據空間。 支加發明所採用之技術手段，係使該活動桌板透用 2支I使桌板與床墊之間，存在—衫高度空間，對 於長，獲床的使用者而言’不必擔心無人協助清理 板，而侷限了其在床舖的活動範圍。 ’、 又’經由本發明賴狀技料段，當使 調整至床面適當位置後，尚可利用設置於桌板底部之框轉二 承，調整該桌板之角度，使桌面除了可水平承置物件外，也 可以呈傾斜肖度’讓使用者於閱讀或書料可以更方便作 業。 本發明所採用的具體實施例，將藉由以下之實施例及 附呈圖式作進一步之說明。 【實施方式】 請參閱第丨圖其係顯示本發明具有收合桌板之床組結 構之桌板收合時之示意圖，該具有收合桌板之床組結構: 具有一傳統床組外觀，其結構包括有一床板组u、一床墊 Η、一對支架32a、32b及一桌板3。參閱第2圖所示係顯 示本發明具有收合桌板之床組結構之桌板使用示意圖，第3 200917997 圖係顯不本發明具有收合桌板之床組結構之桌板使用示意 後視圖。戎床板組11兩側各設有一側板12a、丨2b及一床尾 板1J，並於側板！ 2a、丨2b設置有一導槽2a、2b，該導槽 2a、2b係於側板上依水平方向π延伸，並與側板l2a、12b 平行。 一對支架32a、32b底端各設置一結合軸構件33a、33b， 藉由結合軸構件33a、33b與側板12a、12b所設之導槽2a、 2b接合，使支架32a、32b可依水平方向^於導槽之間來回 位移，桌板3同時藉由所連接之支架32a、32b，可沿側板 12a、12b所設之導槽2a、2b ’水平位移至使用位置或收合 位置，又於支架底端之結合軸構件33a、33b中設有一軸柱 331，於桌板3滑移至收合位置時，利用該軸柱331使支架 32a、32b依操作收合方向]；折合，將桌板3收合平貼叠合 於床尾板η $方。該支架3 2 a、3 2 b頂端各以一桌板結合結 構31a、31b與桌板3相連，使桌板3可利用支架仏、^ .之支撐，而與床墊14之間，形成一定空間之距離。 在本發明之設計中，該具有收合桌板之床組結構之桌 板未使用時，可收合疊放於床尾板13處，當使用時，只需 將桌板3自床尾板丨3處伸出’利用桌板3底端所連接之支 架3h、似’使桌板3與床墊成平行狀態，並與床塾間保 持-高度距離。由於支架32a、32b底端與床組u之兩側板 12a、12b所設之導槽2a、2b相連結，支架可以水平方向辽 於導槽2a、2b位移，而帶動桌板移動到使用位置，讓使用 者可利用桌板3承置物件。 10 200917997 ^閱第4圖’其係顯示本發明具有收合桌板之床組 =^桌板結合結構之局部擴大示意圖，第5_顯示本發 明具有i欠合桌板之床組結構之桌板結合結構傾斜使用時之 f大不意圖’第6圖係顯示本發明具有收合桌板之床組結構 桌板傾斜使用狀態之示意圖。本發明係於支架咖之頂端連 接有-桌板結合結構31b，該桌板結合結構训包括有一 ^ 板結合件35b、與一卡掣端34b。直中 /、中桌板結合件結合於 桌板。底端並設有-轴柱351，用以固定支撐一彈性件如， 利用該彈性件3 5 2可以控制調整桌板結合件中卡掣構件⑸ 之位置。 桌板結合結構31b中之卡掣端州係利用—轴柱⑷ ^滅結合件35結合’並於卡掣端34b上開立有複數個卡 I凹。U42 ’利用設置於桌板結合件说中的卡掣構件如 於卡掣端3仆之各卡掣凹邱349 拔”, 早凹°M42間移動，可調整桌板結合結 一的角度，使桌板3依傾斜方向冚傾斜。 .當需要使用該具有收合桌板之床組結構之桌板時，透 過桌板下方之桌板結合件中之卡掣構件切，卡奸 3朴之各卡掣凹部342，可使桌板依傾斜方向㈣斜，使^ =Γ!置?件外，尚提供使用者可以調整桌板角度， 更易於兀成書寫、閱讀等其它作用。 ㈣Γ閱Γ7圖所示’其係顯示本發明具有收合桌板之床 二！ 收合方式之側面示意圖。當桌板3欲收合時， =者可將桌板3底端所連結之支架32a、32b滑移至該導 才曰2a、2b靠近床尾板13位置，讓桌板3隨之移動，再將支 200917997 ' 12 b成平行 架32a、32b依操作收合方向u斤合與惻板仏 桌板3即可平貼疊合放於床尾;f反13前方。 …乃一樘收合方式係將連接桌板3的支宇3，a 床板組《之導#2a、2b而水平位移至床心 後，再利用與桌板3連結的桌板結合結構仏、仙 ^㈣斜方向關斜成t立狀態，亦可將桌板收納於床= 之床尾板13位置處，有效節省使用空間。 ^由上述之本*明收合桌板之床組結構實施例可知， 舍明收合桌板之床組結構破具產業上之利用價值。惟以上 之實_說明’僅爲本發明之較佳實施例說明，凡習于此項 技術者§可依據本發明之上述實施例說明而作其他種種之 =良及變化。然而這些依據本發明實施例所作的種種改良及 &化’當仍屬於本發明之發明精神及界定之專利範圍内。 【圖式簡單說明】 弟1圖係顯示本發明具有收合桌板之床組結構之桌板收合時 之示意圖； 第2圖ίτΊ本發明具有收合桌板之床組結構之桌板使用示 意圖； μ 第圖ir、顯不本發明具有收合桌板之床組結構之桌板使用示 意後視圖； ’、 第4圖係顯*本發明具有收合桌板之床組結構之桌板結合結 構之局部擴大示意圖； 12 . 200917997 第5圖係顯示本發明具有收合純之床組結構 構傾斜使用時之擴大示意圖; 反…口 第6圖係顯示本發明具有收合桌板之床組結構桌板傾斜使用 狀態之示意圖； 第7圖係顯示本發明具有收合桌板之床組結構之桌板收合方 式之側面示意圖。 【主要元件符號說明】: 1 床組結構 11 床板組 12a、12b 側板 13 床尾板 14 床墊 2a、2b 導槽 3 桌板 3 1 a、3 1 b 桌板結合結構 32a、32b 支架 33a、33b 結合軸構件 331 轴才主 34 卡掣端 341 轴才主 342 卡掣凹部 35 桌板結合件 351 車由检 13 200917997 352 彈性件 353 卡掣構件 I 操作收合方向 Π 水平方向 HI 傾斜方向 14200917997 Nine, invention description: [Technical field to which the invention belongs] Zhuo Yue: Regarding the structure of the bed group, Xiao Bi is about a bed structure with a folding table. Move out or fold flat to ^ Qing Qing: but from the end of the bed set '. Before the end of the moxibustion bed, it can effectively save space. [Prior Art] The bed group that is just used is designed to be considered by the user's position: it only provides sleep function, benefit = use. Even if it is a functional bed, it is mostly _ its bed is comfortable* - or it can be adjusted to adjust its bed angle to provide different lying angles: piece: the average patient is sick in bed 'If you want to be in bed Meal or treatment τ 'This is only from the place where he can use the props of the object to achieve the goal. / Door "Xi 2 as a movable table for holding objects, including the common water rafts - the sides of the table are separately set - side panels, using the side panels to support the teeth (four) panels to make the material directly to the n-type The receiving frame is placed on the mattress. The mattress has a considerable softness. When the user adjusts the posture slightly, the door-type receiving frame may be inclined, and the objects placed on the table, ' 'Because it is directly erected on the bed, the relative space of the user's bed is relatively limited. There is another common movable table in the hospital, which is a two-in-one [characterized table] which includes a table board, a rod kit and a word structure, which engages the top of the pole kit. Table list - side, pole set bottom ^ 200917997 is fixed on the c-shaped sliding structure on the pole set to make the table and the [word · bone fixed height space] due to the general bed structure, the bottom of the bed plate ~ hanging a ground wealth - With a fixed distance, the [slide structure can be slid to the bottom of the bed, so that the movable table can be easily moved over the bed. However, in addition to the general bed group outside the hospital bed, the sliding plate structure and the floor do not accommodate the sliding structure into the human space, and the 匚-shaped movable table can only be pushed by the user. The living table is not used, and the Lai Sue table has to occupy a certain space for storage, which is not conducive to space utilization. In the case of the Patent No. M242072 of the Republic of China, the table for the bed is provided with a frame-turning member at the bottom of the bed set and the table, and the two-T and the bed-table and the table-turning member are respectively utilized. In combination, the table can be fixed to the wooden group, and an auxiliary stand is arranged under the table, so that the auxiliary stand is fixed on the cellar mattress to support the weight of the table. The table for this bed can be used for erecting on the bed group, but when the erection is fixed on the mattress, the mattress is soft and the outer support is easy to deform the mattress. The shortcomings of the visitor's bed activity/W-frame (four)' is limited. In the case of the Patent of the Republic of China Patent No. (9) 524(1), it is advisable to use the bed frame attached table structure, which mainly uses: Secondly, there is a frame plate on the frame pole of the bed wood, which can be used to fix the first and second table plates which can be folded relative to δ, and the middle flute- Μ and the second table plate are provided with a folding structure. 7 fixed on the inner side of the bed frame, so that when the accessory table, the table is turned inward, the table can be used as the water by the abutment rod 200917997 This type of table is sleeved in When the bed frame is set in the frame: When the 匡 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私 私The smaller load-bearing plate is only placed on the bed frame in the opposite direction. [Invention] The technical problem to be solved by the present invention·· , the tongue knows all kinds of active desktops, especially the desktops set up between the wards, which have the disadvantages of being inconvenient in addition to the access, and because of the possession-fixed space, it is difficult to store and cause space between them. Waste is also used. Generally, the movable desktop often sets the support point of the table on the mattress. The bed is not considered to be flexible, and it is not suitable for holding heavy objects, and the money can usually only provide the function of the plane-mounted object. In view of the needs of the user, it is convenient to work with the angle of the table. The main purpose of the present invention is to provide a bed set with a space-saving panel that can be easily accessed and stored. The structure needs to be removed from the footboard when the table is used to be erected and moved to the position of the bed. After the time is completed, the recycling is placed on the footboard to form an integral combination with the bed structure. Provides a movable tabletop that is not restricted by the condition of the bed, so that the tabletop can be hung horizontally above the mattress, and there is no need to move the bed to any object and use a pair of brackets. In order to make the 200917997 table board have better bearing capacity, the user can easily handle the affairs in the bed. Another object of the present invention is to provide a table for multi-angle use, through a table and board structure connected with the table board, The table board is produced—the angle of inclination, so that the desktop can be placed in a horizontal state, and the table can be tilted slightly to facilitate the user to perform other functions. The technical means for solving the problem of the present invention: the present invention is a noon The technical means adopted by the problem of knowing the technology are the left and right side plates of the bed board group, each of which is arranged as a horizontally extending guide groove, and the pair of brackets, the bottom ends of the two brackets are each combined with a shaft member and a guide (4) Shihe's use of the combination of the bracket trough and the combined shaft members, so that the table can be moved horizontally to the appropriate position of the bed set after being removed from the board. After use, the table can be slipped to the end of the bed. The folding and stacking of the footboards. 70 The top of the bracket is combined with the bottom plate of the table with the combination of the table and the board. The bracket and the bed are connected by the bracket. When the bracket is extended, the height between the table and the mattress can be maintained. The scenery is placed on any mattress or object placed on the mattress. Moreover, the bottom end of the bracket is joined to the side panel of the bed by the joint shaft member, and the bracket has a branch point to generate sufficient branching force, so that the table panel can play the role of the object by the weight of the eyepiece. In addition, through the combination of the table and the board connected to the table, the movable table can be tilted. The desktop can be placed in a horizontal state, and the table can be tilted slightly to facilitate the user to use other functions. : 200917997 The present invention compares the effects of the prior art: Compared with the prior art, the present invention can generally make the pine table board from the tail bed of the bed set bed to be arbitrarily set up to the field ~, the pole is privately out The table is adjusted to the top of the bed. The table must be worried that the bed surface cannot be placed smoothly because of the noisy Chen. However, the instrument only needs to fold the table board to the bed end of the bed and/or wood. Combining the body-body's no longer has to occupy space alone. The technical means adopted by the invention is to make the movable table board use 2 I to make the height of the shirt between the table and the mattress. For the long, the user who gets the bed, there is no need to worry about unassisted assistance. Clearing the board limits its range of activities in the bed. 'And again', after adjusting to the proper position of the bed surface, the frame can be turned to the bottom of the table, and the angle of the table can be adjusted to make the table top horizontally In addition to the object, it can also be tilted to make it easier for users to read or book materials. The specific embodiments of the present invention will be further described by the following examples and the accompanying drawings. [Embodiment] Referring to the drawings, it is a schematic diagram showing the folding of the table with the bed structure of the folding table, the bed structure having the folding table: having a traditional bed set appearance, The structure comprises a bed set u, a mattress raft, a pair of brackets 32a, 32b and a table 3. Referring to FIG. 2, there is shown a schematic view of the use of the table of the present invention having the bed structure of the folding table, and the third 200917997 is a schematic view of the use of the table with the bed structure of the folding table. . Each side of the trampoline plate set 11 is provided with a side plate 12a, a 丨 2b and a bed end plate 1J, and is on the side plate! 2a and 2b are provided with a guide groove 2a, 2b which is extended on the side plate in the horizontal direction π and is parallel to the side plates 12a, 12b. A coupling shaft members 33a, 33b are respectively disposed at the bottom ends of the pair of brackets 32a, 32b, and the brackets 32a, 32b are engaged with the guide grooves 2a, 2b provided by the side plates 12a, 12b so that the brackets 32a, 32b can be horizontally oriented. ^ is displaced back and forth between the guide grooves, and the table 3 can be horizontally displaced to the use position or the folding position along the guide grooves 2a, 2b provided by the side plates 12a, 12b by the brackets 32a, 32b to be connected at the same time. A shaft column 331 is disposed in the coupling shaft members 33a and 33b at the bottom end of the bracket. When the table 3 is slid to the folding position, the brackets 32a and 32b are used to adjust the folding direction according to the shaft 331. The plate 3 is folded flat and laminated on the footboard η $ square. The top ends of the brackets 3 2 a and 3 2 b are connected to the table board 3 by a table board joint structure 31a, 31b, so that the table board 3 can be supported by the brackets, and the mattress 14 is formed with the mattress 14. The distance of space. In the design of the present invention, when the table with the bed structure of the folding table is not used, it can be folded and stacked on the footboard 13, and when used, the table 3 is only required to be smashed from the footboard 3 Extending 'takes the bracket 3h connected to the bottom end of the table 3, like 'to make the table 3 parallel to the mattress, and maintain a height-distance from the mattress. Since the bottom ends of the brackets 32a, 32b are coupled with the guide grooves 2a, 2b provided on the side plates 12a, 12b of the bed group u, the brackets can be displaced horizontally in relation to the guide grooves 2a, 2b, and the table is moved to the use position. The user can use the table 3 to hold the object. 10 200917997 ^refer to FIG. 4 ' is a partial enlarged view showing the bed structure of the folding table board of the present invention = ^ table board, and the fifth table shows the table of the bed structure of the present invention having the table board When the board-integrated structure is used in an inclined manner, it is not intended to be used. FIG. 6 is a schematic view showing the state in which the bed of the bed set structure of the present invention is tilted. The present invention is coupled to a top and bottom plate joint structure 31b at the top of the bracket, and the table board joint structure includes a plate joint member 35b and a card end 34b. The straight middle/medium plate joint is combined with the table top. The bottom end is provided with a shaft post 351 for fixing and supporting an elastic member. For example, the elastic member 35 can control the position of the latch member (5) in the table joint. The card-end state in the table-board joint structure 31b utilizes a shaft column (4) to terminate the joint 35 and erects a plurality of card-recesses on the latch end 34b. U42 'Using the 掣 设置 设置 设置 设置 设置 349 349 349 349 349 349 349 349 U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U U The table 3 is tilted in an inclined direction. When the table top having the bed structure of the folding table is used, the card member in the table joint under the table is cut, and the card is 3 The latching recess 342 allows the table to be tilted in the oblique direction (four), so that the user can adjust the angle of the table, which is more convenient for writing, reading, etc. (4) Γ Γ 7 Shown 'these shows the bed 2 of the present invention with the folding table! The side view of the folding mode. When the table 3 is to be folded, the brackets 32a, 32b connected to the bottom end of the table 3 can be slid. Move to the position of the guides 2a, 2b near the footboard 13, let the table 3 move with it, and then the 200917997 '12 b into parallel frames 32a, 32b according to the operation of the folding direction u 合 恻 仏 仏 仏3 can be placed flat on the end of the bed; f reverse 13 in front. ... is a folding method will be connected to the table 3 of the branch 3, a bed set After the guide #2a, 2b is horizontally displaced to the bed core, the table and board combined with the table board 3 is used to join the structure 仙, and the ^^(4) is obliquely inclined to the t-up state, and the table board can be stored in the bed = At the position of the tailgate 13 of the bed, the space is effectively saved. ^ From the above-mentioned embodiment of the bed structure of the folding table, it can be seen that the structure of the bed of the folding table is broken in the industrial use value. The above description is only for the preferred embodiment of the present invention, and those skilled in the art can make other various changes and changes according to the above embodiments of the present invention. However, these are implemented according to the present invention. The various improvements and & ings of the examples are still within the scope of the invention and the patents defined by the invention. [Simplified illustration of the drawings] The figure 1 shows the table of the invention having the bed structure of the table top. FIG. 2 is a schematic view showing the use of a table with a bed structure for folding a table; FIG. 1 is a schematic view showing the use of a table with a bed structure for folding a table. Rear view; ', Figure 4 shows the invention A schematic diagram of a partial enlargement of the combination of the table and the bottom of the bed structure of the folding table; 12. 200917997 Fig. 5 is a schematic enlarged view showing the structure of the bed with the pure bed of the present invention; The figure shows a schematic view of the inclined state of the table structure of the bed set with the folding table in the present invention; FIG. 7 is a side view showing the folding manner of the table with the bed structure of the folding table. Component symbol description: 1 bed structure 11 bed plate group 12a, 12b side plate 13 footboard 14 mattress 2a, 2b channel 3 table 3 1 a, 3 1 b table board joint structure 32a, 32b bracket 33a, 33b combined shaft Member 331 Axis main 34 Clamping end 341 Axis main 342 Clamping recess 35 Table plate coupling 351 Car inspection 13 200917997 352 Elastic member 353 Cassette member I Operation folding direction Π Horizontal direction HI Tilt direction 14