M411168 五、新型說明： 【新型所屬之技術領域】 本創作係與椅子有關，更詳而言之係指一種坐躺兩用 椅。 【先前技術】 按，由於現今室内之空間愈來愈狹小，無論是一般家 庭或辦公場所，可供休息之空間皆相當有限。尤其在辦公 • 場所中，每個人除椅子與桌子外，其餘可供放置私人物品 之空間可說是幾近於零。一般辦公人員於午休時間除吃午 餐外，最為重視的便是能舒適地進行午睡了，但由於辦公 場所内之空間有限，當然不可能有空間再另外放置能供平 躺之床墊，因此只能在自已的椅上坐著而趴在桌子上進行 午睡，但其姿勢相當之不舒服，尤其是在吃完午餐後進行 趴睡容易壓迫到腹部，進而導致胃部之不適。 ® 因此，如何能讓椅子同時具備可供坐姿（坐著）與躺 姿（平躺）之功效，以減少所佔用之空間，便為目前相關 業者所急需解決之課題。 【新型内容】 有鑑於此，本創作之目的乃在提供一種坐躺兩用椅， 係可供乘坐與平躺兩用，以減少所佔用之空間。 緣此，本創作提供一種坐躺兩用椅，其主要包含有： 一椅墊，内部具有一收納空間，該椅墊之前端面具有一連 3 M411168 通該收納空間與外部之開σ ;—射，係鉸接於該椅塾上， 並可相對該椅墊於-直立位置至一平放位置間進行往復轉 動與定位；至少-椅腳，係連接於該椅墊之底部，而可穩 固地將該椅墊撐離一平面預定之高度者；至少一伸縮= 構，係設置於該椅墊之收納空間中，並可於一收納位置至 -伸長位置間進行往復之伸縮運動與定位，使當該伸縮機 構位於收納位置時，係被收納於該椅墊之收納空間内，而 當該伸縮機構位於伸長位置時’係自該椅塾之開口伸出於 外部-預定之距離，·一橫拉桿，係連接於該伸縮機構之自 由端上，以提供使用者拉引該伸縮機構運動之介面者至 少一第一腳架，係錢接於該橫拉桿上，而可相對該橫拉桿 進行一預定角度間之轉動者，且當該伸縮機構位於伸長位 置時’該第-腳架係可標抵於該平面上者；至少 架，係鉸祕該射上，而可相對該射進行—預定= 間二轉動者，且當該椅背位於平放位置時，該第二腳架; 可撐抵於該平面上者。 、糸 =之_兩_’其中，該伸縮機構具有 件及至少一滑動件；該固 疋軌 軌件係固設於該椅墊之收納空 間的内壁面上’該滑動件 該固定軌件進行往復之滑移，外=固疋執件上，而能沿 之自由端上。 4拉桿係連接於該滑動件 固定執 上述之坐躺兩用椅，其中，該伸縮機構具有一 4 ΙΟδ 件、一第一滑動件及〜 該椅塾之收納空間的内2滑動件;該固定執件係固設於 固定軌件上，^ 該第—滑動件係滑接於該 “沿該固定軌件進行往復 滑動件係滑接於該第〜 月移該第一 π動件上，而能沿該第一滑 行往復之滑移，該浐乐α動件進 上。 料係連接於該第二滑動件之自由端 背之=躺兩用椅，其中，該第二腳架係錢接於該椅 4 ’當該椅背位於直立位置時，該第二腳架係 收納於該椅背内，#該椅背位於平放位置時，該第二腳架 之自由端係可撐抵於該平面上。 上述之坐躺兩用椅，其中，當該伸縮機構位於伸長位 置時’該第1架之自由端係可舰於該平面上。 上述之坐躺兩用椅’更包含有—塾體’當該伸縮機構 位於伸長位置時’該墊體係可放置於該伸縮機構上。 上述之坐躺兩用椅，其中，該墊體底面更具有若干之 剛性橫桿。 ^上述之坐躺兩用椅，其中，該墊體包含有第一墊體及 第-塾體以及連結第—塾體、第二墊體之連結部。 上述之坐躺兩用椅，其中，該椅腳上具有至少一滚輪。 上述之坐躺兩用椅，其中，在椅背與椅墊之鉸接處更 包含有一第—鎖緊裝置。 上述之坐躺兩用椅，其中，在第一腳架與橫拉桿之鉸 M4.11168 接處更包含有一第二鎖緊裝置。 上述之坐躺兩用椅，其中，在第二腳架與椅背之鉸接 處更包含有一第三鎖緊裝置。 由於本創作可供使用者進行乘坐與平躺二種姿勢，且 在將椅背樞擺至直立位置並將該伸縮機構位於收納位置 時，其體積與一般椅子完全相同，而不會佔用過多之空間， 而當將椅背樞擺至平放位置並將該伸縮機構拉出位於伸長 • 位置時，則能提供使用者進行平躺之姿勢，以增進本創作 之適用性與方便性。 【實施方式】 為使貴審查委員能對本創作之特徵與特點有更進一 步之了解與認同，茲列舉以下較佳實施例並配合圖式說明 如下： 請參閱第1〜7圖，係本創作一較佳實施例所提供之 • 一種坐躺兩用椅100,其主要包含有一椅墊1 0、一椅 背2 0、若干之椅腳3 0、二伸縮機構4 0、一橫拉桿5 0、至少一第一腳架6 0及至少一第二腳架7 0，其中； 請參閱第1〜3圖，該椅墊10，内部具有一收納空 間1 1，並於該椅墊1 0之前端面具有一開口 1 2，該開 口 1 2係連通該收納空間1 1與外部。 請參閱第1〜3圖，該椅背2 0，係鉸接於該椅墊1 0上，並可相對該椅墊1 0於一直立位置至一平放位置間 6 M411168 轉動，且可於該直立位置至該平放位置間之任一位置處進 行定位。 3月參閱第1〜3圖，該等椅腳3 0，係連接於該椅势 1 〇之底部，而可穩固地將該椅墊i 〇撐離地面（或其它 平面）一預定之高度者。 請參閱第1〜3圖，該二伸縮機構4 〇，係分別設置 於該椅墊1 〇之收納空間；L i中，且該二伸縮機構4 〇並 相距有一預定之距離，該二伸縮機構4 〇並可於一收納位 置至-伸長位置間進行往復之伸縮運動，使當該伸縮機構 4 0位於收納位置時，係被收納於該椅墊丄〇之收納空間 1 1内，而當該伸縮機構4 〇位於伸長位置時，係可自該 椅墊1 0之開口 1 2伸出於外部一預定之距離（長度）。其 中，該各伸縮機構4 〇分別具有一固定軌件4丄、一第一 m動件42及-第二滑動件43，該固定執件41係固設 於該椅墊1 〇之收納空間工！的内壁面上，該第一滑動件 4 2係滑接於該固^轨件4 i上，而能沿該μ執件4丄 進打往復之滑移，該第二滑動件4 3係滑接於該第一滑動 件4 2上’而能沿該第一滑動件4 2進行往復之滑移。 請參閱第1〜3圖，該橫拉桿5〇，係與該二伸縮機 構4 0之各第二滑動件4 3自由端進行連結，使可藉 動該橫拉桿50而帶動該第一、二滑動件42、43進行 往復滑移，以由該橫拉桿5 〇作為使用者拉引該伸縮機構 7 M411168 4 0滑移運動之介面者。 請參閱第1〜3圖，該第一腳架6 0，係樞接連結於 該橫拉桿5 0上，並可相對該橫拉桿5 0進行一預定角度 間之轉動植擺。 請參閱第1〜3圖，該第二腳架7 0，係框接連結於 該椅背2 0之背面内部，並可相對該椅背2 0進行一預定 角度間之轉動樞擺。 • 是以，上述即為本創作所提供一較佳實施例坐躺兩用 椅1 0 0之各部構件及其組裝方式介紹，接著再將其使用 特點介紹如下： 首先，當欲使用本創作來作為椅子使用時，如第1圖 所示，可將該椅背2 0定位於直立位置上，並將該橫拉桿 5 0往椅墊1 0之方向推移，使由該橫拉桿5 0帶動該伸 縮機構4 0之第二滑動件4 2與第三滑動件4 3連同該第 • 一腳架6 0共同被推入於該椅墊1 0之收納空間1 1内， 即使該伸縮機構4 0位於收納位置上。如此一來，便能由 本創作供使用者進行乘坐，而當作椅子使用。 當，欲將本創作作為可供使用者平躺之床墊使用時， 則可將該橫拉桿5 0往遠離該椅墊1 0之方向拉移，使由 該橫拉桿5 0帶動該第三滑動件4 3與該第一滑動件4 2 往遠離該椅墊10開口 12之方向移動（如第2、3圖所 示），待拉移至伸長位置或一適當之距離（長度）時，則可 8 M411168M411168 V. New description: [New technical field] The creation department is related to the chair, and more specifically refers to a seated reclining chair. [Prior Art] Press, because the indoor space is getting smaller and smaller, the space for rest is quite limited, whether it is a general family or office. Especially in office/places, except for chairs and tables, the space for personal items to be placed is almost zero. In general, during lunch breaks, except for lunch, the most important thing is to be able to take a nap comfortably. However, due to the limited space in the office space, it is of course impossible to have another space for the mattress to be laid flat. I can sit on my own chair and lie on the table for a nap, but the posture is quite uncomfortable, especially after taking a nap after eating lunch, it is easy to oppress the abdomen, which leads to discomfort in the stomach. ® Therefore, how to make the chair have the functions of sitting (lying) and lying (lying) at the same time to reduce the space occupied, is an urgent problem for the current industry. [New content] In view of this, the purpose of this creation is to provide a reclining chair that can be used for both riding and lying down to reduce the space occupied. Therefore, the present invention provides a seated reclining chair, which mainly comprises: a seat cushion having a storage space therein, and the front end surface of the seat cushion has a connection of 3 M411168 through the storage space and the outside; Attached to the chair frame, and reciprocally rotated and positioned relative to the seat cushion in an upright position to a flat position; at least the leg is attached to the bottom of the seat cushion, and the seat can be stably The pad is spaced apart from a predetermined height; at least one telescopic=structure is disposed in the storage space of the seat cushion, and can perform reciprocating telescopic movement and positioning between a storage position and an extension position, so that the telescopic When the mechanism is in the storage position, it is stored in the storage space of the seat cushion, and when the telescopic mechanism is in the extended position, the protrusion extends from the opening of the chair to the outside - a predetermined distance, and a tie rod is attached. Connected to the free end of the telescopic mechanism to provide at least one first tripod for the user to pull the interface of the telescopic mechanism, and the money is connected to the crossbar, and can be engaged with the crossbar for a predetermined angle The rotator, and when the telescopic mechanism is in the extended position, the 'footer frame can be marked against the plane; at least the frame is hinged to the shot, and can be made relative to the shot - predetermined = two Rotator, and when the seat back is in the flat position, the second stand; can be supported on the plane. The slewing mechanism has a member and at least one sliding member; the fixed rail member is fixed on an inner wall surface of the accommodating space of the seat cushion. The reciprocating slip, the outer = solid support, and can be along the free end. 4, the tie rod is connected to the sliding member to fix the above-mentioned seated reclining chair, wherein the telescopic mechanism has a 4 ΙΟδ member, a first sliding member and an inner 2 sliding member of the storage space of the chair; the fixing The mounting member is fixed on the fixed rail member, and the first sliding member is slidably coupled to the “reciprocating sliding member along the fixed rail member to be slidably connected to the first π moving member in the first month, and The sliding device can be reciprocated along the first sliding line, and the material is connected to the free end of the second sliding member, wherein the second leg is connected to the money. When the seat back is in the upright position, the second stand is received in the seat back. When the back is in the flat position, the free end of the second stand can be supported by The above-mentioned seated reclining chair, wherein when the telescopic mechanism is in the extended position, the free end of the first frame can be mounted on the plane. The above-mentioned seated reclining chair further includes - The body 'when the telescopic mechanism is in the extended position' can be placed on the telescopic mechanism. The reclining chair has a plurality of rigid crossbars. The above-mentioned reclining chair, wherein the pad body comprises a first pad body and a first body and a connecting body The connecting portion of the second cushion body. The above-mentioned seated reclining chair, wherein the leg has at least one roller. The above-mentioned reclining chair, wherein the hinge of the seat back and the seat cushion further comprises a The first locking device, wherein the first leg and the hinge M4.11168 of the tie rod further comprise a second locking device. A third locking device is further included at the hinge of the second stand and the back of the chair. Since the present invention can be used for the user to ride and lie in two positions, and pivot the seat back to the upright position and the telescopic When the mechanism is in the storage position, its volume is exactly the same as that of a normal chair, and it does not take up too much space. When the seat back is pivoted to a flat position and the telescopic mechanism is pulled out in the extended position, it can be used. Placing a flat position to enhance the creation Applicability and Convenience. [Embodiment] In order to enable the reviewing committee to have a better understanding and recognition of the features and characteristics of this creation, the following preferred embodiments are listed with the following description: Please refer to the first to seventh The present invention provides a reclining chair 100, which mainly includes a seat cushion 10, a seat back 20, a plurality of chair legs 30, and two telescopic mechanisms 40. a tie rod 50, at least one first stand 60 and at least one second stand 70, wherein, in the first to third figures, the seat cushion 10 has a storage space 1 1 therein and The front end surface of the seat cushion 10 has an opening 1 2, and the opening 12 is connected to the storage space 1 1 and the outside. Referring to FIGS. 1 to 3, the seat back 20 is hinged to the seat cushion 10, The seat cushion 10 is rotatable relative to the seat cushion 10 from the upright position to a flat position 6 M411168, and can be positioned at any position between the upright position and the flat position. Referring to Figures 1 to 3 in March, the legs 3 0 are attached to the bottom of the chair, and the seat cushion i can be stably held off the ground (or other plane) by a predetermined height. . Referring to FIGS. 1 to 3, the two telescopic mechanisms 4 are respectively disposed in the storage space of the seat cushion 1 ;; and the two telescopic mechanisms 4 are spaced apart by a predetermined distance, and the two telescopic mechanisms are respectively disposed. 4 〇 and reciprocating movement between a storage position and an extension position, so that when the telescopic mechanism 40 is in the storage position, it is housed in the storage space 1 1 of the seat cushion, and when When the telescopic mechanism 4 is in the extended position, it can protrude from the opening 1 2 of the seat cushion 10 by a predetermined distance (length). Each of the telescopic mechanisms 4 〇 has a fixed rail member 4丄, a first m movable member 42 and a second sliding member 43. The fixing member 41 is fixed to the storage space of the seat cushion 1 ! On the inner wall surface, the first sliding member 42 is slidably coupled to the fixing member 4 i, and can be reciprocated along the μ-piece 4, and the second sliding member 4 3 is slidable. It is connected to the first sliding member 42 and can be reciprocated along the first sliding member 42. Referring to FIGS. 1 to 3, the tie rod 5〇 is coupled to the free ends of the second sliders 43 of the two telescopic mechanisms 40, so that the first and second rods can be driven by the tie rods 50. The sliders 42, 43 are reciprocally slid so that the tie rod 5 〇 acts as a user to pull the interface of the telescopic mechanism 7 M411168 4 to the slip motion. Referring to Figures 1 to 3, the first stand 60 is pivotally coupled to the tie rod 50, and can be rotated relative to the tie rod 50 by a predetermined angle. Referring to Figures 1 to 3, the second stand 70 is framed and coupled to the inside of the back of the seat back 20, and can be pivoted relative to the seat back 20 by a predetermined angle. • Therefore, the above is a description of the components of the lie chair and the assembly method of the preferred embodiment of the present invention, and then the use characteristics thereof are as follows: First, when using this creation When used as a chair, as shown in Fig. 1, the seat back 20 can be positioned in an upright position, and the tie rod 50 is displaced in the direction of the seat cushion 10 so that the tie rod 50 drives the The second slider 4 2 of the telescopic mechanism 40 is pushed together with the third slider 4 3 together with the first tripod 60 into the housing space 1 1 of the seat cushion 10, even if the telescopic mechanism 40 Located in the storage position. In this way, the creation can be used by the user for the ride and used as a chair. When the present invention is to be used as a mattress for the user to lie on, the tie rod 50 can be pulled away from the seat cushion 10 so that the third tie rod 50 drives the third The sliding member 43 moves with the first sliding member 4 2 away from the opening 12 of the seat cushion 10 (as shown in Figures 2 and 3), and is to be pulled to the extended position or a suitable distance (length). Then 8 M411168
將該第一腳架6 0轉動樞擺一預定之角度，使該第一腳架 6 0之自由端朝下而能抵靠於一地面（或平面）上（如第 3圖所示），以使該伸縮機構4 〇能穩固地被撐住，並增加 伸縮機構4 〇之剛性（以增加所能承載之重量），如此一來 便可成為-L_椅’以供❹者能㈣部録於該椅塾 1 0上而又腳平放於該伸縮機構4 0上，而背部則能靠 抵於該椅背2◦上，以提供更為舒適之乘坐環境與姿勢。 請參圖5、6、8所示，另外，本創作更可包含有一 塾體9 1，該塾體9 χ包含有第—塾體g工2及第二塾體 9 1 3以及連結第-塾體9工2、第二墊體9工3之連結 部9 1 4，該魏9 1平常可以放置於椅塾1 G及椅背2 〇上（參圖8 ) ’以增加塾體9 i及椅背2◦之舒適性，且 不須額外之收納空間，而當睡塾時，該墊體g Μ可放置 於椅墊1 Q開π 1 2外之伸縮機構4◦部位上，即放置於 )，以讓使用 該第-、二滑動件42、43上（參圖5、 者乘坐或躺放身體各部位時有更佳之舒適性 上述該墊體9 1之底面更具有若干之剛性橫桿9 χ丄 (如6圖所示），以提供難體91有較佳之支撐效果。 當使用者欲進行躺臥時，則可將第6圖中之椅背2 〇 樞擺至平放位置處（如第7岡 弟〈圖所不），並將該第二腳架7 0 樞擺一預定之角度，使該望_ 第—腳架7 0之自由端朝下而能 抵靠於一地面（或平面） )上（如第7圖所示），以使該椅背 9 M411168 2 0能穩固地被撐住，並增加椅背2 0之剛性（以增加所 能承載之重量），如此一來，本創作便可供使用者進行平 躺，使本創作能同時具備有可供坐姿與躺姿之二種功效， 且在將椅背2 0樞擺至直立位置並將該伸縮機構4 0位於 收納位置時，其體積與一般椅子完全相同，而不會佔用過 多之空間，而當將椅背2 0樞擺至平放位置並將該伸縮機 構4 0拉出位於伸長位置時，則能提供使用者進行平躺之 • 姿勢，以增進本創作之適用性與方便性。 其次，上述之各椅腳3 0上更可具有一滾輪3 1，以 提供本創作在移動時之便利性，也可以使用沒有滚輪3 1 之椅腳3 0，使用上更穩固。 另外，本創作坐躺兩用椅1 0 0在椅背2 0與椅墊1 ◦之鉸接處設有一第一鎖緊裝置9 0，用以將該椅背2 0 於直立位置至平放位置間之任一處進行鬆開軸轉及鎖緊而 • 定位，即可將該椅背2 0相對該椅墊1 0之任一角度進行 定位者，以增進本創作之剛性穩定度。。 接著，本創作坐躺兩用椅1 00在第一腳架6 0與橫 拉桿5 0之鉸接處設有一第二鎖緊裝置8 0，用以將該第 一腳架6 0於相對該橫拉桿5 0之任一角度進行鬆開軸轉 及鎖緊定位，以增進本創作之剛性穩定度。 又，本創作在第二腳架7 0與椅背2 0之鉸接處設有 第三鎖緊裝置8 1，令第二腳架7 0可以鬆開軸轉，也可 M411168 以鎖緊定位。 以上所揭，僅為本創作所提供之較佳實施例，並非用 以限制本創作實施例之範圍，凡本技術領域内之相關技藝 者根據本創作所為之均等變化，皆應屬本創作所涵蓋之範 圍。 【圖式簡單說明】 • 第1圖係本創作一較佳實施例之做為椅子之立體組合圖。 第2圖係第1圖所示實施例將伸縮機構拉出之頂視示意 圖。 第3圖係第1圖所示實施例將伸縮機構展開之側視示意 圖。 第4圖係第1圖所示實施例之局部構件剖視圖。 第5圖係第1圖所示實施例將伸縮機構展開及放上墊體之 ® 分解側視示意圖。 第6圖係第1圖所示實施例將伸縮機構展開並組合墊體之 側視示意圖。 第7圖係第1圖所示實施例全部展開之侧視示意圖。 第8圖係第1圖放上墊體之側視圖。 11 M4.11168 【主要元件符號說明】 坐躺兩用椅1 0 0 椅墊1 0 開口 1 2 椅腳3 0 伸縮機構4 0 • 第一滑動件42 橫拉桿5 0 第二腳架7 0 第一鎖緊裝置9 0 第三鎖緊裝置81 第一墊體912 連結部9 1 4 收納空間1 1 椅背2 0 滚輪3 1 固定執件4 1 第二滑動件4 3 第一腳架6 0 第二鎖緊裝置8 0 墊體9 1 剛性橫桿911 第二墊體913 12Rotating the first stand 60 to a predetermined angle so that the free end of the first stand 60 is facing downward and can abut against a ground (or plane) (as shown in FIG. 3). So that the telescopic mechanism 4 can be firmly supported, and increase the rigidity of the telescopic mechanism 4 (to increase the weight that can be carried), so that it can become a -L_chair for the (four) part It is recorded on the chair 塾10 and the foot is placed on the telescopic mechanism 40, and the back can be placed against the back of the chair 2 to provide a more comfortable riding environment and posture. Please refer to Figures 5, 6, and 8. In addition, the creation may further include a body 9 1 which includes a first body 2 and a second body 9 1 3 and a link - The body 9 and the second body 9 are connected to each other. 9 1 4, the Wei 9 1 can be placed on the chair 1 G and the seat back 2 (see Fig. 8) to increase the carcass 9 i And the comfort of the back of the chair, and no need for additional storage space, and when sleeping, the cushion body g Μ can be placed on the 4 伸缩 part of the telescopic mechanism of the seat cushion 1 Q π 1 2, that is, placed In order to allow the use of the first and second sliding members 42, 43 (see Figure 5, when riding or lying on the body parts, there is better comfort. The bottom surface of the cushion body 9 1 has a plurality of rigid transverse sides. Rod 9 χ丄 (as shown in Figure 6) to provide a better support for the difficult body 91. When the user wants to lie down, the seat back 2 of Figure 6 can be pivoted to a flat position. Where (such as the 7th Gangdi (not shown), and pivoting the second stand 70 to a predetermined angle, so that the free end of the _ the first leg 70 is facing downward and can abut against On the ground (or plane)) (as shown in Figure 7) ), so that the seat back 9 M411168 2 0 can be firmly supported, and increase the rigidity of the seat back 20 (to increase the weight that can be carried), so that the creation can be used for the user to lie flat Therefore, the creation can have two functions of sitting and lying at the same time, and when the seat back 20 is pivoted to the upright position and the telescopic mechanism 40 is in the storage position, the volume is exactly the same as that of the general chair. Without occupying too much space, when the seat back 20 is pivoted to the flat position and the telescopic mechanism 40 is pulled out in the extended position, the user can be provided to lie in a posture to enhance The applicability and convenience of this creation. Secondly, each of the above-mentioned legs 300 can have a roller 3 1 to provide the convenience of the creation of the present invention, and the chair leg 30 without the roller 3 1 can also be used, which is more stable in use. In addition, the present sitting-seat chair 100 is provided with a first locking device 90 at the hinge of the seat back 20 and the seat cushion 1 , for positioning the seat back 20 in an upright position to a flat position. Any position between the two can be achieved by loosening the shaft rotation and locking and positioning. The seat back 20 can be positioned at any angle relative to the seat cushion 10 to improve the rigidity stability of the present invention. . Next, the creation of the reclining chair 100 is provided with a second locking device 80 at the hinge of the first leg 60 and the tie rod 50 for the first leg 60 to be opposite to the cross. At any angle of the pull rod 50, the shaft rotation and the locking position are released to improve the rigidity stability of the present invention. Moreover, the present invention is provided with a third locking device 8 at the hinge of the second stand 70 and the seat back 20, so that the second stand 70 can release the shaft rotation, or the M411168 can be locked and positioned. The above is only the preferred embodiment provided by the present invention, and is not intended to limit the scope of the presently-created embodiments. All of the related art in the art should be equally changed according to the present creation, and should belong to the present invention. The scope of coverage. BRIEF DESCRIPTION OF THE DRAWINGS: Fig. 1 is a perspective view of a chair as a preferred embodiment of the present invention. Fig. 2 is a top plan view showing the embodiment in which the telescopic mechanism is pulled out in the embodiment shown in Fig. 1. Fig. 3 is a side elevational view showing the expansion mechanism of the embodiment shown in Fig. 1. Fig. 4 is a cross-sectional view showing a partial member of the embodiment shown in Fig. 1. Fig. 5 is a side elevational view showing the expansion and disassembly of the telescopic mechanism in the embodiment shown in Fig. 1. Fig. 6 is a side elevational view showing the embodiment of Fig. 1 in which the telescopic mechanism is unfolded and the mat is combined. Fig. 7 is a side elevational view showing the entire development of the embodiment shown in Fig. 1. Figure 8 is a side view of the pad placed in Figure 1. 11 M4.11168 [Description of main component symbols] Seated chair 1 0 0 Seat cushion 1 0 Opening 1 2 Leg 3 0 Telescopic mechanism 4 0 • First slider 42 Crossbar 5 0 Second leg 7 0 A locking device 9 0 third locking device 81 first pad body 912 connecting portion 9 1 4 storage space 1 1 seat back 2 0 roller 3 1 fixing member 4 1 second sliding member 4 3 first leg holder 6 0 Second locking device 80 0 pad body 9 1 rigid cross bar 911 second pad body 913 12