201143682 • 六、發明說明： 【發明所屬之技術領域】 本發明係關於一種座椅之主動支撐裝置及其方法，特別 是指一種透過壓力感測器感測每一氣囊内的壓力值，藉以取 得與人體腰部相對應的氣囊’使該與腰部對應的氣囊充氣量 足以主動支撐人體的脊椎曲線縫隙處，以達到最佳坐躺姿勢 之座椅之主動支撐裝置及其方法。 【先前技術】 座椅主要功用是提供人們可坐著歇息，以讓久站的雙腿 Φ 獲得舒緩’避免人們因久站而衍生出各種疾病，因此，座椅 已成為人們曰常生活中不可或缺的產品，其實用性是無庸置 疑。 坊間一般業者對於座椅之改良，大都著墨在坐墊及椅墊 的棉塾上’而對棉墊支訴求重點皆以舒適柔軟為主，除此之 外並無其他附加功能。 因此，為解決上述之缺失’本案申請人已提出Pct申請 第PCT/CN2008/000092號（下稱引證1)及第 PCT/CN2007/000317 號（下稱引證 2)及 PCT/CN2007/007367(下稱引證3)，針對引證案之特徵說明如 • 下：引證1係為一種可根據人體脊椎曲線調整之座椅（一）， 主要係包含：「一坐墊及一背墊，該坐墊及背墊中皆設置有 以馬達為控制主軸之數升降裝置，係可自行調整或預先調整 ««玄升降裝置之上升位置，當使用者坐於該椅墊上時，該升降 裝置即會依照使用者於坐姿時的脊椎曲線，主動上升至預定 位置，以主動支撐人體之坐姿脊椎曲線，進而達到坐躺舒適 之目的」。然而，透過馬達帶動方式，需使用到大量的馬達， 使成本相對提高，而造成日後座椅的單價過高，無法普及。 引證2係為一種可根據人體脊椎曲線調整之座椅（二）， 主要係包含：「主要係包含有一坐墊及一背墊，該坐墊及背 墊中皆設置有數升降裝置，該升降裝置係藉由氣袋或水袋進 201143682 行上升或下降之調整；當使用者坐於 置即會依照使用者於坐姿時的眷始“ “于°豕开降裝 置，以主動支撐人體之坐姿眷地也綠^ ^开主預疋位 安斧椎曲線，進而達到坐躺舒適之201143682 • VI. Description of the Invention: [Technical Field] The present invention relates to an active support device for a seat and a method thereof, and more particularly to a pressure sensor for sensing a pressure value in each airbag, thereby obtaining The airbag corresponding to the waist of the human body is such that the airbag corresponding to the waist is inflated in an amount sufficient to actively support the spine curve gap of the human body to achieve an active support device for the seat in an optimal sitting posture and a method thereof. [Prior Art] The main function of the seat is to provide people to sit and rest, so that the legs of the station can be soothed to avoid the disease caused by the long-term standing. Therefore, the seat has become a life in people's life. The usefulness of a product that is lacking is unquestionable. In general, the improvement of the seats for the general practitioners is mostly on the cushions of the cushions and the cushions. The focus on the cotton pads is mainly on the comfort and softness, and there are no other additional functions. Therefore, in order to solve the above-mentioned shortcomings, the applicant has proposed Pct application No. PCT/CN2008/000092 (hereinafter referred to as citation 1) and PCT/CN2007/000317 (hereinafter referred to as citation 2) and PCT/CN2007/007367 (below) Citation 3), for the characteristics of the citation case, such as: • Citation 1 is a seat that can be adjusted according to the human spine curve (1), mainly includes: “a seat cushion and a back cushion, the seat cushion and the back cushion The lifting device with motor as the control spindle is provided, and the rising position of the «« Xuan lifting device can be adjusted or pre-adjusted. When the user sits on the seat cushion, the lifting device will be in accordance with the user's sitting posture. The spine curve of the time is actively raised to a predetermined position to actively support the sitting spine curve of the human body, thereby achieving the purpose of sitting comfortably. However, a large number of motors are required to be driven by the motor, so that the cost is relatively increased, and the unit price of the seat in the future is too high to be popularized. Citation 2 is a seat (2) that can be adjusted according to the curve of the human spine. The main items include: "The main system includes a seat cushion and a back pad. The seat cushion and the back pad are provided with a plurality of lifting devices. The air bag or water bag enters the adjustment of the rise or fall of the 201143682 line; when the user sits in the position, the user will start to "slow the device" in the sitting position to actively support the sitting posture of the human body. Green ^ ^ open the main pre-squatting anxe curve, and then achieve the comfort of sitting
目的，待使用者站起時，兮斗隊抽里B 、町逆升降裝置即會復歸。然而，引 證2需使用大量氣袋及水袋，」 Ή 衣且結構又較為複雜，導致製作 成本相對提升，進而影響座椅的單價，無法普及。 引α 3係為一種可根據人體脊椎曲線調整之座椅（三）， 主要係包3 .坐塾及-背|，該坐塾及背塾中皆設置有 至少-組以上之升降裝置；該升降裝置包含有—座體、至少 個以上之氣墊、至少一個以上充氣機及控制裝置」。然而， 該引也3係將所有物件皆包覆在座椅内，造成座椅的體積太 大且重，造成不易搬移。 為解決上述引證1〜3的缺失，本案申請人於2〇〇9年〇6 月23日再次提出申請第098211231號「可主動支撐人體脊 椎曲線之座椅」（下稱引證4 )，該引證4雖然可以改善上述 引證1〜3的缺失，但仍然係用高度感測器進行人體脊椎曲線 的偵測，故仍會衍生出以下缺失： 1 ·引證4為達到透過高度感測器感測人體脊椎曲線的 目的，所以必須增設一座體及複數活動裝置，除造成製作成 本增加外，並增加結構的複雜性。 2.藉由南度感測器並無法準確偵測出與人體腰部對應的 氣囊，造成腰部支撐效果不彰。 由此可見’上述習用物品仍有改良之空間。 【發明内容】 本發明之目的即在於提供一種座椅之主動支撐裝置及 其方法’係在設定的壓力下，依照每一個氣囊在充氣時間上 的不同’取得與人體腰部相對應的氣囊，以準確將人體腰部 支撐。 本發明之次一目的係在於提供一種座椅之主動支撐裝 置及其方法’係透過壓力感測器的設置，精簡整體的結構複 201143682 雜度，進而達到節省成本之目的。 可達成上述發明目的之座椅之主動支撐裝置及其方 法’主要係包含-座椅本體、氣墊層、壓力感測器、充放氣 裝置及控制裝置：該座椅本體係包含一坐墊及一背墊·該氣 墊層係设置在背墊接近正面處係接近佈滿整個背墊，並延伸 至背墊及坐墊的交接處；該氣墊層係包含數氣囊，每一氣囊 上白與一氣管的端部相連接，並將氣管另一端與充放氣裝置 相連接，該充放氣裝置並與控制裝置相連接，係透過控制裝 置驅使充放氣裝置經由氣管對氣墊層之氣囊進行充氣或放 氣，並於每一條氣管上皆連接有一壓力感測器；當使用者坐 躺於座椅本體時，該控制裝置會驅使充放氣裝置對全部氣囊 充氣，並透過每條氣管上的壓力感測器偵測氣囊内的壓力， 當每一氣囊内部壓力達到設定值時，即會停止充氣，藉由每 一氣囊充氣的時間差，即可得知人體脊椎曲線，進而取得與 人體腰部對應的氣囊；取得人體脊椎曲線後，即會將氣囊内 的氣體完全放氣，並自動再次充氣，此時與腰部對應的氣 囊，其充氣量係足可主動支撐腰部，供使用者達到舒適全躺 的目的。 【實施方式】 請參閱第一圖至第四圖所示，係本發明所提供之座椅之 主動支撐裝置及其方法，主要包括： 一座椅本體1 ’該座椅本體1係包含一坐塾11及背塾 12,並於背墊12内包覆有墊體2,該墊體2靠近背墊12的 正面處設置有一上容置空間21，而靠近背墊12的背面處設 置有一下容置空間22，並於上容置空間12及下容置空間22 間設置有貫穿之穿孔23 ;另外，該墊體2可為泡棉或獨立筒 或記憶棉或緩衝彈性材或各式發泡材皆可； 一氣墊層9，該氣墊層9係包含一頂層91及複數氣囊 S1〜S7構成，該複數氣囊si〜S7係等距排列於頂層91表面， 並於每一個氣囊S1〜S7上設置有充/放氣孔（圖中未標示）； 201143682 係將氣塾層9設置於塾體2之上容置空間21中； 一氣管組3 ’該氣管組3係包含數條氣管3 1，每條氣管 31之一端係與一個氣囊S1〜S7之充/放氣孔相連接，而氣管 31之另一端則係與一三通管4之第一通口 41相連接； 一充放氣裝置5’該充放氣裝置5上設置有數出氣口（圖 中未標示），每一出氣口皆與一控制開關6連接（如圖四所 示），該控制開關ό係與三通管4之第二通口 42連接，使充 放氣裝置5可對氣囊S1〜S7充氣；該充氣裝置5可設置在座 椅本體1内部。 一壓力感測器組8 ,該壓力感測器組8係包含數壓力感 測器8卜該壓力感測器81係與三通管4之第三通口 43連接， 使該壓力感測器81可偵測氣囊S1〜S7内部的 -控制裝置7,該控制裝置7係與充放的氣充裝孔置壓夂^ 控制開關6及壓力感測器81組電性連接，使控制裝置7可 依照壓力感測器81偵測的壓力信號’驅使控制開關6開啟 或關閉，使充放氣裝置5可各別或同時對複數個氣囊si〜s7 充氣或洩氣。另外，該控制裝置7可為個人電腦或筆記型電 腦或PDA或其他具有顯示登幕71 &輸入介面的電子產品， 该輸入介面可為按鍵或按鈕或觸控螢幕71或遙控器。另外， 該控置裝置7可設置在座椅本體i之坐塾u或㈣^上. 另外，上述背墊12之墊體的上容置空間21表面可蓋 一緩衝墊13,進而將氣墊眉9办姓—从 夕扭、w 夾持疋位’以增加使用者坐躺 =舒適感又；而緩衝墊13可為各種形式之龍，如： 棉、乳膠墊或各式發泡材或彈性緩衝材。 言月參閱第五圖所示，係本發明之另一 势一胡 ^ ,认"〜々 I呢不蒽圆，其與 外二：之ί異處在於，係將充放氣裝置5設置在座椅本體1 外，並於背墊12背面設置有一開口 121， :端經該開口121裸露出背塾12外，以與三通二4! ΪΙ二相連接，進而與充放氣裝1 5相連接，至於其他姓 構白與第二圖相同，與此不再贅述。 、° 201143682 之操閱ί四圖及第六A、B、C圖所示，係本發明 使用者10的身躺田使用者10第一次坐於座椅本體1上時， 個者躺r塾i2h 部、腰邱純/皮使用者不同的身體部位（如肩部、背 氣的壓i值壓抵，並透過控制裝置7聽設定一充 再驅使每一個控制開關6開啟，使充放氣裝置 貞^ = ^〜S7進行充氣，並透過壓力感：= ==氣“ 壓力值’將偵測結果傳送至控制Purpose, when the user stands up, the fighting team will pull the B, the town reverse lifting device will return. However, the introduction of 2 requires the use of a large number of air bags and water bags, which are complicated in structure, resulting in a relatively high production cost, which in turn affects the unit price of the seat and cannot be popularized. The α 3 system is a seat (3) that can be adjusted according to the curve of the human spine, and is mainly provided with a bag 3 and a back seat, and at least one set of lifting devices are disposed in the seat and the back; The lifting device comprises a seat body, at least one air cushion, at least one inflator and a control device. However, the guide also covers all the items in the seat, making the seat too large and heavy, making it difficult to move. In order to solve the above-mentioned lack of citations 1 to 3, the applicant of this case filed another application of No. 098211231 "Seat capable of actively supporting the human spine curve" (hereinafter referred to as citation 4) on June 23, 2009, the citation 4 Although it can improve the lack of the above cited 1~3, it still uses the height sensor to detect the human spine curve, so the following defects will still be derived: 1 · Citation 4 is to reach the height sensor to sense the human body The purpose of the spine curve, so it is necessary to add a body and a plurality of movable devices, in addition to the increase in production costs, and increase the complexity of the structure. 2. With the South Sensor, it is impossible to accurately detect the airbag corresponding to the waist of the human body, resulting in poor waist support. It can be seen that there is still room for improvement in the above-mentioned conventional items. SUMMARY OF THE INVENTION An object of the present invention is to provide an active support device for a seat and a method thereof for obtaining an airbag corresponding to a waist of a human body according to a difference in inflation time of each airbag under a set pressure. Accurately support the human waist. A second object of the present invention is to provide an active support device for a seat and a method thereof, which are designed to reduce the overall structure of the 201143682 by means of a pressure sensor, thereby achieving cost saving. The active support device for a seat and the method thereof for achieving the above object of the invention mainly comprise a seat body, an air cushion layer, a pressure sensor, a charge and discharge device and a control device: the seat system comprises a seat cushion and a seat The back cushion and the air cushion layer are disposed near the front surface of the back cushion and extend to the intersection of the back cushion and the seat cushion; the air cushion layer includes a plurality of airbags, each of which is white and has a trachea The ends are connected, and the other end of the trachea is connected to the charging and discharging device, and the charging and discharging device is connected with the control device, and the charging and discharging device is driven to inflate or release the airbag of the air cushion through the air pipe through the control device. Gas, and a pressure sensor is connected to each of the air pipes; when the user sits on the seat body, the control device drives the charging and discharging device to inflate all the air bags, and the pressure feeling on each air pipe The detector detects the pressure in the airbag. When the internal pressure of each airbag reaches the set value, the inflation will be stopped, and the time curve of each airbag inflation can be used to know the human spine curve. The airbag corresponding to the waist of the human body; after obtaining the curve of the human spine, the gas in the airbag is completely deflated and automatically inflated again. At this time, the airbag corresponding to the waist is fully inflatable to support the waist for use. The person achieves the goal of comfort and full lying. [Embodiment] Please refer to the first to fourth figures. The active support device and the method for the seat provided by the present invention mainly include: a seat body 1 'the seat body 1 includes a seat The cymbal 11 and the back cymbal 12 are covered with a pad body 2, and the pad body 2 is provided with an upper accommodating space 21 near the front surface of the back pad 12, and is disposed near the back surface of the back pad 12. The accommodating space 22 is provided with a through hole 23 extending between the upper accommodating space 12 and the lower accommodating space 22; in addition, the pad body 2 may be a foam or a separate cylinder or a memory cotton or a cushioning elastic material or various types of hair. An air cushion layer 9 comprising an upper layer 91 and a plurality of airbags S1 to S7, the plurality of airbags si to S7 being equidistantly arranged on the surface of the top layer 91, and in each of the airbags S1 to S7 There is a charging/discharging hole (not shown); 201143682 is to set the gas layer 9 in the accommodating space 21 above the corpus 2; a trachea group 3' the gas tube group 3 includes several gas pipes 3 1, One end of each of the air tubes 31 is connected to the charging/discharging holes of one of the air cells S1 to S7, and the other end of the air tube 31 is connected. The first port 41 of the three-way pipe 4 is connected; a charging and discharging device 5' is provided with a plurality of air outlets (not shown), and each air outlet is connected with a control switch 6 Connected (as shown in FIG. 4), the control switch is connected to the second port 42 of the tee 4, so that the charging and discharging device 5 can inflate the airbags S1 to S7; the inflator 5 can be disposed in the seat The inside of the body 1. a pressure sensor group 8 comprising a plurality of pressure sensors 8 connected to the third port 43 of the tee 4 to make the pressure sensor 81 can detect the internal control device 7 of the airbags S1 to S7, and the control device 7 is electrically connected with the charging and discharging gas filling hole control switch 6 and the pressure sensor 81 to make the control device 7 The control switch 6 can be driven to turn on or off according to the pressure signal detected by the pressure sensor 81, so that the charging and discharging device 5 can inflate or deflate the plurality of airbags si~s7 separately or simultaneously. In addition, the control device 7 can be a personal computer or a notebook computer or a PDA or other electronic product having a display screen 71 & input interface, which can be a button or a button or a touch screen 71 or a remote controller. In addition, the control device 7 can be disposed on the seat 塾u or (4) of the seat body i. In addition, the surface of the upper accommodating space 21 of the pad body of the back pad 12 can cover a cushion pad 13, and then the air cushion eyebrow 9 to do the surname - from the evening twist, w hold the niche 'to increase the user to sit down = comfort and; and the cushion 13 can be various forms of dragon, such as: cotton, latex mat or various foam or elastic Buffer material. Referring to the fifth figure, it is another trend of the present invention. It is recognized that the quotation is not round, and the difference between it and the outside is that the condensing device 5 is set. An opening 121 is disposed outside the seat body 1 and on the back surface of the back pad 12, and the end of the back pad 12 is exposed through the opening 121 to be connected with the three-way two 4! , two, and then the charging and discharging device 1 5 phase connection, as for other surnames, the white structure is the same as the second figure, and will not be described again. , the operation of the 201143682, and the sixth figure A, B, and C, when the user 10 of the user 10 of the present invention sits on the seat body 1 for the first time, the person lies塾i2h part, waist Qiu pure/skin user's different body parts (such as shoulder, back air pressure i value is pressed, and through the control device 7 listen to set a charge and then drive each control switch 6 to open, so that the charge and discharge The gas device 贞^ = ^~S7 is inflated and transmitted to the control through the pressure sense: = == gas "pressure value"
㈤氣囊S1〜S7内部壓力到達設定值時，該控 s sf ^即會驅使對應的控制開關6關閉，由於每個氣囊 1〜S7係又到使用者不同的身體部位壓持，例如：受到使用 者10身體（如：肩部或背部或臀部）直接壓迫的氣囊S1、 S2及S6、S7，到達設定壓力的時間即愈短，而沒有1接受 到使用10者身體部位（如：腰部）壓持的氣囊S3〜S5，其到 達设定壓力的時間即愈長，如此即可得到一時間與每一氣囊 =應的曲線（如圖六B所示），該曲線即代表人體坐躺時的 ^椎曲線，經由該曲線即可得知與使用者1〇腰部相對應的 氣囊S2〜S4，且該曲線可經由控制裝置7之顯示螢幕71顒 不，由於該控制裝置7係設置在座椅本體丨之坐墊u上， 供使用者10即時觀看本身的身體脊椎曲線。 取得與人體腰部對應的氣囊S3〜S5後，該控制裝置7會 驅使控制開關6開啟，以驅動充放氣裝置7對全部氣囊S1〜S7 進行洩氣後，再驅動充放氣裝置5依照取得的脊椎曲峻各別 對每個氣囊S1〜S7進行充氣，使該與使用者 氣囊S3〜S5，其充氣量會將使用者i〇腰部與背墊12的縫細 補滿，以達到主動支撐人體腰部之目的，導致使用者躺於背 塾12上時，身體係處於最鬆弛的狀態，以達到最佳坐姿之 目的。 另外，可透過控制裝置7預先設定多組氣囊si〜S7充氣 元成的脊椎曲線模式’當控制裝置7取得與腰部對應的氣囊 201143682 S3〜S5後’使用者i〇即可读说扯丨莊如 ^ Φ ^ ^ οι. ^ Ρ 了透過控制裝置7上的輸入介面選擇 所需的舍椎曲線模式’所選擇的脊椎曲線模式其充 的係為與人體腰部對應的氣囊S3〜S5。、、、 到有】二J用Ϊ 1〇若覺得所選擇的脊椎曲線模式無法達 S i今？可經由控制裝置7上顯示勞幕71及輸入 ;丨面’各別調整每個氣囊S1〜S7的充氣量。 L，丨1〇離開座椅本體1時，該壓力感測器81即會 至二制奘ί 7以〜”内的壓力值改變’並會將偵測信號傳送 制裝置7即會驅充放氣裝置5對已充氣之 ^囊S1〜S5進㈣氣，使座椅本體^背塾表面回覆平整狀 態0 為突顯本發明與上述引證案及其他習用產品差異之 處’特將本發明之優點列述如下： 二本發明係在設定的壓力下，依照每一個氣囊在充氣時 間上的不同，精準取得與人體腰部相對應的氣囊，以 人體腰部支撐，不受使用者身材不同影響。 2.本發明係透過壓力感測器的設置，精簡整體的結構複 雜度’進而達到節省成本之目的。 【圖式簡單說明】 第一圖為本發明座椅之主動支撐裝置及其方法之立 示意圖； 第二圖為本發明座椅之主動支撐裝置及其方法之組人 示意圖； 、’ η _第三圖為本發明座椅之主動支撐裝置及其方法之剔面 示意圖； ' 第四圓為本發明座椅之主動支撐裝置及其方法之 示意圖； ' / ,、傅 第五圖為本發明座椅之主動支撐裝置及其方法之另一 實施示意圖；以及 第六A、B、C圖為本發明座椅之主動支樓裝置及其方 201143682 法之操作示意圖。 【主要元件符號說明】 1座墊本體 11坐墊 12背墊 121 開口 13緩衝墊 2墊體 2 1上容置空間 22下容置空間 23穿孔 3氣管組 31氣管 4三通管 41第一通口 42第二通口 43第三通口 5充放氣裝置 6控制開關 7控制裝置 71顯示螢幕 8壓力感測器組 81壓力感測器 9氣墊層 91頂層 S1〜S7氣囊 10使用者(5) When the internal pressure of the airbags S1 to S7 reaches the set value, the control s sf ^ will drive the corresponding control switch 6 to be closed, since each airbag 1 to S7 is pressed to a different body part of the user, for example: is used The airbags S1, S2 and S6, S7 directly compressed by the body 10 (such as the shoulder or the back or the buttocks), the shorter the time to reach the set pressure, and the less the body part (such as the waist) is used. The longer the time it takes to reach the set pressure, the longer the time it takes to reach the set pressure, so that a curve for each time and each airbag = (as shown in Figure 6B) can be obtained, which represents the human body when sitting down. ^The curve of the vertebra, through which the airbags S2 to S4 corresponding to the waist of the user 1 can be known, and the curve can be displayed via the display screen 71 of the control device 7, since the control device 7 is disposed in the seat The body cushion is placed on the cushion u for the user 10 to instantly view the curve of the body's spine. After obtaining the airbags S3 to S5 corresponding to the waist of the human body, the control device 7 drives the control switch 6 to open, and drives the charging and discharging device 7 to deflate all the airbags S1 to S7, and then drives the charging and discharging device 5 according to the obtained Each of the airbags S1 to S7 is inflated by the spine, so that the airbags S3 to S5 are filled with the user's waist and the back cushion 12 to achieve active support of the human body. The purpose of the waist is that the user is in the most relaxed state when lying on the backs 12 to achieve the best sitting posture. In addition, the spine curve pattern of the plurality of sets of airbags si to S7 inflated by the control device 7 can be preset. When the control device 7 obtains the airbags 201143682 S3 to S5 corresponding to the waist, the user i can read and write For example, ^ Φ ^ ^ οι. ^ 选择 The desired spine curve mode selected by the input interface on the control device 7 is selected as the airbags S3 to S5 corresponding to the waist of the human body. 、,、到有】二J用Ϊ 1〇If you think that the selected spine curve mode can't reach S i today? The amount of inflation of each of the airbags S1 to S7 can be individually adjusted by displaying the screen 71 and the input through the control unit 7. L, 丨1〇 When leaving the seat body 1, the pressure sensor 81 will change to the pressure value within the ” 奘 7 and will detect the signal transmission device 7 will be charged and discharged The air device 5 enters (4) the gas into the inflated capsules S1 to S5, so that the seat body is backed by the surface of the seat body. The state of the present invention is different from the above-mentioned cited documents and other conventional products. The following are listed as follows: 2. According to the set pressure, according to the different inflation time of each airbag, the airbag corresponding to the waist of the human body is accurately obtained, and is supported by the waist of the human body, and is not affected by the different body of the user. The invention reduces the overall structural complexity through the setting of the pressure sensor, thereby achieving the purpose of cost saving. [Simplified illustration of the drawing] The first figure is a schematic diagram of the active supporting device and the method thereof for the seat of the invention; The second figure is a schematic diagram of a group of active support devices and methods thereof for the seat of the present invention; , η _ third diagram is a schematic diagram of the active support device of the seat of the present invention and a method thereof; invention Schematic diagram of the active support device of the seat and the method thereof; ' / , Fu fifth diagram is another schematic diagram of the active support device of the seat of the invention and the method thereof; and the sixth A, B, C diagram is the invention Schematic diagram of the active branch building of the seat and its method 201143682. [Main component symbol description] 1 seat cushion body 11 seat cushion 12 back pad 121 opening 13 cushion 2 cushion body 2 1 accommodating space 22 accommodating space 23 perforation 3 trachea group 31 trachea 4 tee tube 41 first port 42 second port 43 third port 5 charge and deflation device 6 control switch 7 control device 71 display screen 8 pressure sensor group 81 pressure sensing 9 air cushion layer 91 top S1 ~ S7 airbag 10 user