1260977 九、發明說明： 【發明所屬之技術領域】 本發明玄要係揭示一種座椅底座，尤指可隨靠背後傾 時產生水不滑移動作之座椅底座者。 【先前技術】 按，社會的結構形態日新月異，人們所需求的生活品 質相對提高，對事物的要求也従「能兩就好」的老舊思維， 變得相當細膩，唯有不斷進步或創新的構想，才能滿足現 代社會的需求。 按，一般傳統之座椅皆設計有靠背傾仰之功能，惟當 靠背後傾時，由於座墊仍保持於原位而無法跟著靠背後 移，會使靠背與座墊尾端之間隔過大，如此將使得乘坐者 無法完全服貼的靠於靠背上，且會使腿關節卡在座墊的前 緣，在使用上較不舒適。而後有多種傾仰之改良設計，如 下所述： 參照我國專利公告編號第526737號之「座椅靠背傾仰 裝置」，其包括有一座墊支架1、一靠背支架2、一調節件 3、一第一牽掣件4與一傾仰控制撥桿7。該座墊支架1底 部接設一氣壓棒9，該靠背支架2則樞設於該座墊支架1 後端，並可裝設一靠背B。該調節件3則設置於該座墊支 架1内，可用以定位該靠背支架2的傾斜角度。該第一牽 掣件4係裝設於該靠背支架2之兩侧，且該第一牽掣件4 上方裝設有一座墊A，該傾仰控制撥桿7係穿設於該座墊 1260977 二f支架2相對於該座墊支架 該靠背^當t用者操作該傾一 樞擺，可二节牽掣件4同時相對於該座墊支架1 該習使，背B與該座整A同時產生傾斜動作。 整該靠背===上仍然有多處缺點，因使用者在調1260977 IX. Description of the Invention: [Technical Field of the Invention] The present invention discloses a seat base, especially a seat base that can be moved without slipping when the backrest is tilted backward. [Prior Art] According to the changing structure of society, the quality of life demanded by people is relatively higher, and the demand for things is also the old thinking of "can be good". It becomes quite delicate, only continuous improvement or innovation. The idea can meet the needs of modern society. Press, the traditional seat is designed with the function of backrest tilting. However, when the backrest is tilted backward, the backrest and the rear end of the seat cushion are too large because the seat cushion is still in the original position and cannot be moved back with the backrest. This will make the occupant unable to fully fit against the backrest, and will make the leg joints stuck to the front edge of the seat cushion, which is less comfortable to use. And then there are a variety of improved design of the tilting, as follows: Refer to the "seat back tilting device" of the Chinese Patent Publication No. 526737, which includes a pad bracket 1, a backrest bracket 2, an adjusting member 3, and a The first pulling member 4 and a tilting control lever 7 are provided. A bottom of the seat cushion bracket 1 is connected with a gas pressure bar 9, which is pivotally disposed at the rear end of the seat cushion bracket 1 and can be provided with a backrest B. The adjusting member 3 is disposed in the seat cushion bracket 1 for positioning the inclination angle of the backrest bracket 2. The first tying member 4 is mounted on the two sides of the backrest bracket 2, and a pad A is mounted on the first tying member 4, and the tilting control lever 7 is disposed on the seat cushion 1260977. The two f brackets 2 are opposite to the seat cushion brackets. When the user operates the tilting pivoting, the two strapping members 4 are simultaneously relative to the cushion bracket 1 and the back B and the seat A are At the same time, the tilting action There are still many disadvantages in the backrest ===, because the user is adjusting
的高度亦跟著上升，而疋位之後5該座墊A前緣 者的錢u 升的前緣會驗在乘坐 不碎摘 心加呎用爷血液循環不佳’乘坐時相當的 1 =重之外，同時傾斜的靠背㈣該座墊A會讓乘 ::2心:穩的感覺，且若是在調整時使用者向後傾的 、會讓乘坐者以為整個座椅將要向後傾倒，在 吏用，，々目當危險，此種不符產業利用的設計非常的不實 用’故有改良之必要。 『有I於上返習知辑之缺失，本發明人乃發明岀一種 士可滑移之麟底座』’其可制當靠背後傾時，座墊仍保 捋水平的後移動作，.係可克服上述f式製品之所有缺點。 【發明内容] 本發明『可滑移之座椅底座』所欲解決之技術問題係 在於，該習知結構在使用者在調整該靠背及座墊傾斜角度 並疋位之後，該座墊前緣的高度亦跟著上升，而該座墊上 升的前緣會壓迫在乘坐者的大腿下方，造成使用者血液循 環不佳’乘坐時相當的不舒適。除此之外，同時傾斜的靠 背與該座墊會讓乘坐者有重心不穩的感覺，且若是在調整 1260977 時使用者向後傾的力量過大，還會讓乘坐者以為整個座椅 將要向後傾倒，在使用上相當危險，相當不方便，亟有待 於改進。 本發明『可滑移之座椅底座』，其包括有一基座、一 尾座、——張力調整裝置與一定位裝置；該基座具有第一端 與第二端，該基座的兩侧分別設有一壁板5該壁板上緣則 形成有一執道；該尾座係樞設於該基座之兩侧壁板上，I it目對於该基座樞擺傾斜，該尾座具有第一端與第二端， 邊尾座之第一端可接設靠背，該尾座之兩侧分別結合有^ 扶手架，該扶手架可供樞接一底板，該底板之頂側可用以 裝設座墊，而該底板之底側相對於該基座執道的位置則分 別設置有一滚輪，該滾輪可於該執道上移動；該張力調爹 裝置彳系裝设於该基座與該尾座之間，且可用以調整該爲, 相對於該基座傾斜之力量；該定位裝置則設於該基座厶第 —端，且可用以控制該尾座之傾斜角度者；藉此，當赛声 向後傾斜時，該尾座可同時帶動該底板向後移動，使#爹 達到一水平後移的動作，可提供乘坐者一舒適平穩的乘办 感受。 、，白々 其他目的、優點和本發明的新穎特性將從以下詳鲈 描述與相關的附圖更加顯明。 【實施方式】 有關本發明所採用之技術、手段及其功姝，茲舉 佳實施例並配合圖式詳述如後，此僅供說明之用，在聲 1260977 申請上並不受此種結構之限制。 參照第一圖，本發明包括有一基座10、一尾座20、一 張力調整裝置30與一定位裝置40。該基座10兩側設有執道 12 該尾座2 0係枢設於該基座1G上5該尾座2 0上枢設有 一底板50，該底板50可於該基座10之軌道12上滑移， 產生一水平滑移之動作者。該張力調整裝置30係設於該基 座10與該尾座20之間，可供調整其間之傾仰力量。該定 位裝置40裝設於該基座10與該尾座20之間，可供控制其 間之定位關係；其中： 參照第二圖與第三圖，該基座10具有第一端與第二 端，該基座10的兩側分別設有一壁板11，該壁板11上緣 則形成有一執道12 $該執道12係呈一凸弧形狀，且該執 道12之高度係自該基座10之第一端朝第二端漸漸降低。 該基座10第一端内橫向設有一第一支撐板13，該第一支 撐板13上開設有二結合槽131。該基座10自該第一支撐 板13底部朝該第二端處還傾斜延伸有一滑移部14。該壁 板11於靠近底緣處開設有一樞孔111‘，該樞孔111可供穿 設一柜轴17。該基座10之第二端底部開設有一套接孔i55 該套接孔15可用以接設一腳架61 (如圖一所示），該基座 10於第二端還橫向的樞設有一腳架調整桿16,該腳架調整 桿16係自該套接孔15延伸出該基座10之壁板Π，而可 供使用者扳動以調整該腳架61之高低者。 該尾座20係枢設於該基座10之兩侧壁板11上，且可 相對於該基座10樞擺傾斜者。該尾座20具有第一端與第 1260977 一端，其第一端自兩侧朝前延伸有二樞臂21，該樞臂21 上開設有一框孔211，該樞臂21可藉該樞孔2U而樞設於 该基座ίο之樞轴π上。該基座10壁板^相對於該樞臂 21的上側逛設置有一限位件212，該限位件212係可擋止 於該樞臂21的上方，用以限制該尾座2〇相對於該基座ί〇 的樞轉極限。該尾座2G之第二端可接背扳22 5該背 ，22可供裝設一靠背62,而該尾座2〇之第二端與該背板 =結合處設有數結合孔2〇1、2215可供螺件鎖固者。於本 實施例中該尾座2()之第二端與該背板22結合處係設有三 個結合孔20i、221者。 該尾座20之第一端於兩侧樞臂21之間還設置有一固 定桿23，該固定桿23可供套設一第二支撐板24，該第二 义撐板24上則形成有-扳鉤部24i。該尾座2〇之兩侧相 對於緣固定桿23處還分別結合有一扶手架25，該扶手架 25可供樞接一底板50。該扶手架25上設有二組合孔251 與一穿孔2bZ，該二組合孔251可用以組裝扶手（圖中未 示）。該底板50之頂侧可用以裝設座墊63，而該底板5〇 之底侧相對於該基座10軌道12的位置則分別設置有一滾 輪51，該滾輪51可於該軌道12上滾動者。該底板5〇之 低侧固設有二延伸架52，該二延伸架52約呈一;L字型， 且係分別自該底板50之兩侧朝上延伸而出。該延伸架52 上设有穿孔521，該穿孔521可藉一樞接件53而樞設於該 扶手架25之穿孔252處，使該底板50可相對於該尾座2〇 框擺動作者。 1260977 該張力調整裝置30係裝設於該基座10内的第一端 處，且可用以調整該尾座20傾斜之力量。該張力調整裝置 30包括有二彈性件31、一滑塊32、一導螺桿33與一張力 調整桿34。該彈性件31係一端插置於該基座10第一支撐 板13的結合槽i3i内，另一端則插置於該尾座20第二支 撐板24的扳鉤部241内，於本實施例中該彈性件31係採 用二具有彈性之金屬片體。該滑塊32係滑設於該基座10 之滑移部14上，面該滑塊32之兩惻分別形成有一抵靠部 321，該二抵靠部321恰可分別接觸於該二彈性件31。該 導螺桿33係穿設於該滑塊32之中段處，且該導螺桿33 係以一端樞設於該第一支撐板1.3的中間處。該張力調整桿 34則框設於該基座10之壁板11上，並以一端與該導螺桿 33相接觸者。該張力調整桿34與該導螺桿33相接觸部份 係以堝齒輪341.、331相配合傳動，該張力調整桿34異於 導螺桿33之一端則裝設有一手把342，該手把342係設為 一多角形狀，可方便使用者握持旋轉操作。藉此於旋轉該 張力調整桿34時，可傳動該導螺桿33旋轉，驅使該滑塊 32可於該滑移部i4上移動，改變該彈性件3i之彈力大小 者。 該定位裝置40則設於該基座10之第二端，且可用以 控制該尾座20之傾斜角度者。該定位裝置40包括有一定 位塊41、一活動舌片42與一靠背調整桿43。該定位塊41 係固設於該尾座20之固定桿23上，且該定位塊41於一側 設有多數個定位槽411。該活動舌片42可伸入於該定位塊 10 1260977 41之任一定位槽411内，使該尾座20形成一定位狀態。 該靠背調整桿43係樞設於該基座10之第二端内，且一端 係接觸於該定位裝置40，可供使用者操作該活動舌片42 伸入或脫離該定位槽411。該控制裝置40之詳細結構請參 照本申請人先前向 鈞局提出申請之專利申請案號第 931 i9749號「可簡易控制椅背仰躺角度之控制裝置」專利 案，於此不再加以贅述。 參照第E9圖與第五圖，當使堉者握持於_該張力調整裝 置30之手把342處，旋轉該張力調整桿34可同時傳動該 導螺桿33，使該滑塊32可於該滑移部14上移動。而藉由 該彈性件31.與該滑塊32相接觸之部份與該彈性件31插置 於該扳鉤部241 —端的距離變化，可使該彈性件31施於該 扳鉤部241的力量跟著改變，如此可調整該尾座20傾斜角 度之力量大小者。於本實施例中，該滑塊32越遠離第一支 撐板][3則該彈性件31的彈力越大，而該滑塊32越靠近該 第一支撐板13處則該彈性件31的彈力越小。 參照第六圖與第七圖，當欲調整靠背62之傾仰角度 時，可操作該靠背調整桿43，使該靠背調整桿43可撥動 該定位裝置40之活動舌片42,令該活動舌片42脫離該定 位塊41之定位槽411，如此即可調整該尾座20相對於該 基座10之傾仰角度。 參照第八圖，為本發明之動作圖，當該尾座20向下樞 擺，使該靠背62朝後傾仰時，該尾座20之扶手架25可同 時帶動該底板50之延伸架52向後移動。由於該延伸架52 11 1260977The height of the seat is also rising, and after the squatting, the front edge of the front of the seat cushion A will be tested in the unbreakable heart, and the blood circulation is poor. At the same time, the inclined backrest (4) The seat cushion A will give a ride:: 2 heart: a stable feeling, and if the user leans backwards during the adjustment, the occupant will think that the entire seat will be dumped backwards, in use, When it comes to danger, this kind of design that does not conform to industrial use is very impractical. Therefore, it is necessary to improve. "There is a lack of I in the return to the Xizhi series, the inventor has invented a kind of base that can be slipped." It can be used as a backrest when the backrest is tilted backwards. All the disadvantages of the above f-type products can be overcome. SUMMARY OF THE INVENTION The technical problem to be solved by the "slidable seat base" of the present invention is that the conventional structure is used after the user adjusts the tilt angle of the backrest and the seat cushion and clamps the front edge of the seat cushion. The height of the seat is also raised, and the rising leading edge of the seat cushion is pressed under the occupant's thigh, causing poor blood circulation to the user's considerable discomfort during riding. In addition, the inclined backrest and the seat cushion will give the occupant a feeling of unstable center of gravity, and if the user leans back too much when adjusting 1260977, the occupant will think that the entire seat will be dumped backwards. It is quite dangerous to use, quite inconvenient, and needs to be improved. The "slidable seat base" of the present invention comprises a base, a tailstock, a tension adjusting device and a positioning device; the base has a first end and a second end, and both sides of the base Each of the wall panels 5 is formed with an obstruction; the tailstock is pivotally disposed on the two side wall panels of the base, and the tilting of the base is tilted to the base. One end and the second end, the first end of the tailstock can be connected with a backrest, and the two sides of the tailstock are respectively combined with a handrail frame, the handrail frame can be pivotally connected to a bottom plate, and the top side of the bottom plate can be used for loading a seat cushion is provided, and a position of the bottom side of the bottom plate relative to the base is respectively provided with a roller, and the roller is movable on the way; the tension adjusting device is mounted on the base and the tail Between the seats, and can be used to adjust the force of tilting relative to the base; the positioning device is disposed at the first end of the base, and can be used to control the tilt angle of the tailstock; thereby, when When the game sound is tilted backwards, the tailstock can simultaneously move the bottom plate backwards, so that #爹 reaches a level and moves backward. Action, providing occupant comfort a smooth ride do feel. Other objects, advantages and novel features of the invention will be apparent from the following detailed description. [Embodiment] The techniques, means, and advantages of the present invention will be described in detail with reference to the accompanying drawings. This is for illustrative purposes only, and is not applicable to the application of the acoustic 1260977 application. The limit. Referring to the first figure, the present invention includes a base 10, a tailstock 20, a tension adjusting device 30 and a positioning device 40. The base 10 is pivotally disposed on the base 1G. The tailstock 20 is pivotally provided with a bottom plate 50. The bottom plate 50 can be disposed on the track 12 of the base 10. Sliding up, producing a horizontal slip of the actor. The tension adjusting device 30 is disposed between the base 10 and the tailstock 20 for adjusting the reclining force therebetween. The positioning device 40 is disposed between the base 10 and the tailstock 20 for controlling the positioning relationship therebetween. Referring to the second and third figures, the base 10 has a first end and a second end. A siding 11 is respectively disposed on two sides of the pedestal 10, and an upper edge of the siding 11 is formed with a trajectory 12. The trajectory 12 has a convex arc shape, and the height of the trajectory 12 is from the The first end of the base 10 gradually decreases toward the second end. A first supporting plate 13 is disposed laterally in the first end of the base 10, and two engaging slots 131 are defined in the first supporting plate 13. The base 10 further has a sliding portion 14 extending obliquely from the bottom of the first supporting plate 13 toward the second end. The wall panel 11 defines a pivot hole 111' near the bottom edge, and the pivot hole 111 can be used to form a cabinet shaft 17. The bottom of the second end of the base 10 is provided with a set of holes i55. The socket 15 can be used to connect a stand 61 (shown in FIG. 1 ). The base 10 is also laterally disposed at the second end. The tripod adjustment lever 16 extends from the sleeve hole 15 out of the wall panel of the base 10 for the user to adjust to adjust the height of the tripod 61. The tailstock 20 is pivotally disposed on the two side wall panels 11 of the base 10 and can be tilted relative to the base 10. The tailstock 20 has a first end and a 1260977 end. The first end of the tailstock 20 has two pivot arms 21 extending forwardly from the two sides. The pivot arm 21 defines a frame hole 211. The pivot arm 21 can be pivoted by the pivot hole 2U. And pivoted on the pivot π of the base ίο. The base plate of the base 10 is provided with a limiting member 212 opposite to the upper side of the pivoting arm 21, and the limiting member 212 is blocked above the pivoting arm 21 for limiting the tailstock 2〇 relative to The base has a pivoting limit. The second end of the tailstock 2G can be connected to the back of the back plate 22 5 , and the back end 22 can be provided with a backrest 62 , and the second end of the tailstock 2 与 and the back plate are combined with a plurality of joint holes 2 〇 1 2215 is available for screw locking. In the embodiment, the second end of the tailstock 2 () is coupled with the back plate 22 to provide three coupling holes 20i, 221 . The first end of the tailstock 20 is further disposed with a fixing rod 23 between the two side pivoting arms 21, and the fixing rod 23 can be sleeved with a second supporting plate 24, and the second yoke 24 is formed with - Hook portion 24i. The armrest frame 25 is also coupled to the edge fixing rod 23 on both sides of the tailstock 2, and the armrest frame 25 is pivotally connected to a bottom plate 50. The armrest frame 25 is provided with two combination holes 251 and a through hole 2bZ, which can be used to assemble an armrest (not shown). The top side of the bottom plate 50 can be used to mount the seat cushion 63, and the bottom side of the bottom plate 5 is disposed with a roller 51 on the bottom of the base 10, and the roller 51 can be rolled on the track 12 . The lower side of the bottom plate 5 is fixed with two extending frames 52. The two extending frames 52 are approximately L-shaped and extend upward from the sides of the bottom plate 50, respectively. The extending frame 52 is provided with a through hole 521. The through hole 521 can be pivoted to the through hole 252 of the handrail frame 25 by a pivoting member 53, so that the bottom plate 50 can swing the author with respect to the tailstock 2 frame. 1260977 The tension adjusting device 30 is mounted at the first end of the base 10 and can be used to adjust the tilting force of the tailstock 20. The tension adjusting device 30 includes two elastic members 31, a slider 32, a lead screw 33 and a force adjusting lever 34. The elastic member 31 is inserted into the coupling groove i3i of the first support plate 13 of the base 10, and the other end is inserted into the hook portion 241 of the second support plate 24 of the tailstock 20, in this embodiment. In the elastic member 31, two elastic metal sheets are used. The slider 32 is slidably disposed on the sliding portion 14 of the base 10. The two sides of the slider 32 are respectively formed with an abutting portion 321 , and the two abutting portions 321 are respectively respectively contacted with the two elastic members. 31. The lead screw 33 is disposed at a middle portion of the slider 32, and the lead screw 33 is pivotally disposed at a middle of the first support plate 1.3 at one end. The tension adjusting lever 34 is disposed on the wall panel 11 of the base 10 and is in contact with the lead screw 33 at one end. The portion of the tension adjusting rod 34 that is in contact with the lead screw 33 is driven by the spur gears 341., 331. The tension adjusting rod 34 is provided with a handle 342 at one end of the lead screw 33. The handle 342 The system is set to a polygonal shape, which is convenient for the user to hold the rotation operation. Thereby, when the tension adjusting lever 34 is rotated, the lead screw 33 can be driven to rotate, and the slider 32 can be driven to move on the sliding portion i4 to change the elastic force of the elastic member 3i. The positioning device 40 is disposed at the second end of the base 10 and can be used to control the tilt angle of the tailstock 20. The positioning device 40 includes a fixed block 41, a movable tongue 42 and a backrest adjustment lever 43. The positioning block 41 is fixed on the fixing rod 23 of the tailstock 20, and the positioning block 41 is provided with a plurality of positioning slots 411 on one side. The movable tongue 42 can extend into any of the positioning slots 411 of the positioning block 10 1260977 41 to form the tailstock 20 in a positioned state. The backrest adjustment rod 43 is pivotally disposed in the second end of the base 10, and one end is in contact with the positioning device 40, and the user can operate the movable tongue 42 to extend into or out of the positioning slot 411. For the detailed structure of the control device 40, reference is made to the patent application No. 931 i9749, the "Control device for easy control of the reclining angle of the seat back", which is filed by the present applicant. Referring to FIGS. E9 and 5, when the gripper is held by the handle 342 of the tension adjusting device 30, the tension adjusting lever 34 is rotated to simultaneously drive the lead screw 33 so that the slider 32 can be The slide portion 14 moves up. The elastic member 31 is applied to the hook portion 241 by the portion of the elastic member 31 that is in contact with the slider 32 and the distance at which the elastic member 31 is inserted into the end of the hook portion 241. The force changes, so that the strength of the tilting angle of the tailstock 20 can be adjusted. In this embodiment, the farther the slider 32 is away from the first support plate][3] the greater the elastic force of the elastic member 31, and the closer the slider 32 is to the first support plate 13, the elastic force of the elastic member 31. The smaller. Referring to the sixth and seventh figures, when the tilting angle of the backrest 62 is to be adjusted, the backrest adjusting lever 43 can be operated such that the backrest adjusting lever 43 can move the movable tongue 42 of the positioning device 40 to make the activity The tongue piece 42 is disengaged from the positioning groove 411 of the positioning block 41, so that the tilting angle of the tailstock 20 relative to the base 10 can be adjusted. Referring to the eighth figure, in the action diagram of the present invention, when the tailstock 20 is pivoted downward to tilt the backrest 62 backward, the armrest frame 25 of the tailstock 20 can simultaneously drive the extension frame 52 of the bottom plate 50. Move backwards. Due to the extension 52 11 1260977
Itf於該扶手架25樞轉動作，故該底板5G與座藝的 个曰月上掀起。且該底板50因座墊 了保持—近似水平的狀態而向後移動，並同時 63平:此向聚#坐者在向後仰躺時，僅有靠背62向後傾而座藝 —叙、谈之動作5不會讓乘坐者有傾倒的感覺，可提供 =且平穩的乘坐感受給使用者。 ’、 賴第九圖’當傾仰至欲調整之角度之後，可操作兮 ;::14Γ.使該定位裝置40之活動舌片42伸入於:: ^ A 4 i〜叱位槽4U内，令該尾座20相對於該基座^ 形成一定位狀態。 就X上所返可以歸納出本發明具有以下之優點： 1:本發明『可滑移之座椅底座』，其中該尾座相對於該 土座1員斜樞轉日守，僅靠背向後傾，而座墊係保持水平的 後移動，如此可提供使用者一良好的乘坐感受。 2·本發明『可滑移之座椅底座』，其中該基座之兩側設 有軌這’而座墊下設有滾輪可延該軌道移動，使座墊產生 一水平移動的動作。 3.本發明『可滑移之座椅底座』，其中該基座與該尾座 之間設有彈性件’該彈性件可提供該尾座相對於該基座之 傾斜力量者。 由疋觀之，本發明極具產業上利用價值，·且又未見有 相同或類似之發明出現於國内外刊物或公開使用，實已符 合專利法規定之積極及消極要件，理應料發明專利。 12 1260977 唯上所述者，僅為本發明之較佳實施例而已，當不能 以之限定本發明實施之範圍，故舉凡數值之變更或等效元 件之置換，或依本發明申請專利範圍所作之均等變化與修 飾，皆應仍屬本發明專利涵蓋之範疇。 【圖式之簡要說明】 第一圖：為本發明之侧視圖。 第二圖：為本發明之立體分解圖。 第三圖：為本發明之立體分解圖。 第四圖：為本發明之侧視圖。 第五圖：為本發明之上視圖。 第六圖：為本發明之側視圖。 第七圖：為本發明之上視圖。 第八圖：為本發明之侧視圖，表示座墊平移向後。 第九圖：為本發明之側視圖。 附俾：為我國專利公告編號第526737號專利案。 【主要元4牛符號說明】 10 基座 11 壁板 111 枢孑L 12 軌道 13 第一支撐板 131 結合槽 14 滑移部 15 套揍孔 16 腳架調整桿 17 樞轴 20 尾座 201 結合孔 13 1260977Itf pivots on the armrest 25, so that the bottom plate 5G and the seat art are picked up. And the bottom plate 50 moves backwards due to the state in which the seat cushion is held-approximated horizontally, and at the same time 63 flat: when the seater is lying backwards, only the backrest 62 is tilted backwards, and the movement is performed. 5 will not let the occupant feel the dumping, can provide = and a smooth ride to the user. ', 赖第第图', after tilting to the angle to be adjusted, can be operated 兮;::14Γ. The movable tongue 42 of the positioning device 40 is inserted into:: ^ A 4 i~ 叱 slot 4U The tailstock 20 is formed in a positioned state relative to the base. The invention can be summarized as follows: The invention has the following advantages: 1: The "slidable seat base" of the invention, wherein the tailstock pivots relative to the earthen member, and only the backrest is tilted backwards The seat cushion is horizontally moved rearward, which provides a good ride for the user. 2. The "slidable seat base" of the present invention, wherein the base is provided with rails on both sides thereof, and a roller is disposed under the seat cushion to extend the movement of the rail to cause a horizontal movement of the seat cushion. 3. The "slidable seat base" of the present invention, wherein an elastic member is provided between the base and the tailstock. The elastic member provides a tilting force of the tailstock relative to the base. Due to the fact that the present invention is extremely industrially useful, and no identical or similar invention has appeared in domestic and foreign publications or in public use, it has already met the positive and negative requirements of the Patent Law, and it is expected that the invention patent . 12 1260 977 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 Equal variations and modifications are still within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS First FIG.: is a side view of the present invention. Second figure: an exploded perspective view of the present invention. Third figure: an exploded perspective view of the present invention. Fourth Figure: A side view of the present invention. Fifth Figure: A top view of the present invention. Figure 6 is a side view of the invention. Figure 7 is a top view of the present invention. Figure 8 is a side view of the present invention showing the seat cushion translated backwards. Figure 9 is a side view of the present invention. Attachment: It is the patent application number 526737 of China. [Main element 4 cow symbol description] 10 Base 11 Wall plate 111 Pivot L 12 Track 13 First support plate 131 Binding groove 14 Sliding portion 15 Nesting hole 16 Tripod adjustment lever 17 Pivot 20 Tailstock 201 Binding hole 13 1260977
21 、才區臂 211 樞孔 212 限位件 22 背板 221 結合孔 23 固定桿 24 第二支撐板 241 扳鉤部 25 扶手架 251 組合孔 252 穿孔 30 張力調整裝置 31 彈性件 on t)乙 滑塊 Ο Ο 1 OLI 抵靠部 33 導螺桿 331 蝸齒輪 34 張力調整桿 34! 蝸齒輪 342 手把 40 定位裝置 4Ι 定位塊 411 定位槽 42 活動舌片 43 靠背調整桿 50 底板 5Ι 滚輪 52 延伸架 521 穿孔 53 樞接件 6ί 腳架 62 靠背 63 座墊 1421, the arm 211 pivot hole 212 limit member 22 back plate 221 joint hole 23 fixing rod 24 second support plate 241 hook portion 25 arm frame 251 combination hole 252 perforation 30 tension adjustment device 31 Block Ο Ο 1 OLI abutment 33 lead screw 331 worm gear 34 tension adjustment lever 34! worm gear 342 handle 40 positioning device 4 定位 positioning block 411 positioning groove 42 movable tongue 43 backrest adjustment lever 50 bottom plate 5 滚轮 roller 52 extension frame 521 Perforation 53 pivot member 6ί stand 62 back 63 seat cushion 14