1240039 玖、發明說明： 【發明所屬之技術領域】 本發明是有關於一種梯子，特別是指一種可適用各種 地形的可調支腳高度之梯。 5 【先前技術】 參圖1，以公告第256314號「可改變高度之梯子」新 型專利案為例，該梯子1主要具有一梯架11、四契合裝置 12及四活動桿13。該梯架11具有四支撐桿111，及數連結 該相鄰支撐桿111的踏板112。該等契合裝置12是分別設 10 置在該支撐桿111 一側。該等活動桿13是分別可滑動地裝 設在該支撐桿111内，且能與該契合裝置12卡合定位。藉 此，該梯架11可利用該活動桿13的伸縮長度，調整每一 支撐桿111的高度，使該梯子1能適用具有高度落差的地 形如樓梯。惟，上述元件雖然可以達到調整梯子1高度的 15 目的，卻於實際使用時仍存有以下缺失，而亟待解決： 該梯架11雖然可以利用該等活動桿13,針對具有高 度落差的地形調整高度，但是，該等活動桿13只能架置在 平整的支撐面上，如果該地形（如室外場合）具有凹凸不平 整的支撐面時，就會有不夠平穩甚或有傾落的危險，而在 20 使用安全性方面，仍然有可提昇的空間。 【發明内容】 因此，本發明之目的，即在提供一種能穩固地架置在 具有落差及凹凸不平的支撐面上的可調支腳高度之梯。 於是，本發明的可調支腳高度之梯包含：一梯架、一 1240039 調整組件及一定位組件。該梯架具有數沿線性方向延伸的 支撐桿，及多數沿線性方向平行排列且連結二相鄰支撐桿 的踏板。該調整組件具有數支腳，該等支腳是可移動地設 置在該梯架每一支撐桿一側，並具有可穿出該支撐桿的一 5 端部。該定位組件具有數可旋動地樞設在每一支腳一端部 且服貼於一支撐面的腳板，及數可分別固定該腳板的鎖固 件。 本發明的功效是能使適用地形更廣泛，且提昇使用安 全性。 10 【實施方式】 有關本發明之前述及其他技術内容、特點與功效，在 以下配合參考圖式之三較佳實施例的詳細說明中，將可清 楚的明白。 參閱圖2、圖3，本發明「可調支腳高度之梯」的較 15 佳實施例包含：一梯架2、一調整組件3及一定位組件4 〇 該梯架2是概呈倒V型，並具有四沿線性方向延伸的 支撐桿21，及多數沿線性方向平行排列且連結二相鄰支撐 桿21的踏板22。 20 該調整組件3具有三沿線性方向排列且固定在每一支 撐桿21 —側的螺固件31，及數與該螺固件31螺合的支腳 32。該等支腳32分別具有可穿出該支撐桿21的一端部 32卜 該定位組件4具有數可旋動地樞設在每一支腳32端 1240039 部321且服貼於一支撐面的腳板41，及數可分別固定該腳 板41的鎖固件42。該鎖固件42具有貫穿該支腳32端部 321與該腳板41的一螺栓421，及一與該螺栓421螺合且 鎖固該腳板41的螺帽422。 5 藉此，該等支腳32可利用螺進或旋退的動作，沿線 性方向伸縮，使該梯架2的支撐桿21具有調整高度的功能 ，參圖4，而能架置在具有高度落差的地形（如樓梯）。或 如圖5所示，當支撐面不平整時，可鬆釋該定位組件4的 螺帽422，使該腳板41可自由旋動改變角度，而能服貼於 10 凹凸不平的地形，再鎖緊該螺帽422，使該腳板41固定， 就可以使該梯架2的支撐桿21穩固的支撐在凹凸不平的支 撐面上。 參圖6，本發明的調整組件3與定位組件4也可以設 置在一直型梯架5的其中一支撐桿51上，藉此，同樣可以 15 利用伸縮的支腳32及旋擺調整角度的腳板41，穩固地架 置在具有落差及凹凸不平的支撐面上。 參圖7、圖8，該調整組件3也可以具有數分別固定 在每一支撐桿21 —側且分別供該支腳32穿置的套管33， 及一固定在該支腳32上且穿出該套管33的凸栓34。該套 20 管33具有沿長度方向延伸的一槽道331，及多數由槽道 331往兩側延伸且分別向上形成一彎勾部332的卡制槽333 。該凸栓34可沿該槽道331位移且與任一卡制槽333卡合 ，並定位在該彎勾部332内。 調整該支腳32長度時，可以旋動該支腳32，使該凸 1240039 栓34脫離該彎勾部332與該卡制槽333，而進入該槽道 331内，藉此，就可以上、下伸縮該支腳32，達到調整該 支腳32長度的目的。 參圖9、圖10，該調整組件3也可以具有數分別固定 5 在每一支撐桿21 —側且分別供該支腳32穿置的套管35， 及一螺栓36。該支腳32更具有沿其長度方向延伸的一凸 軌322，一形成在該凸執322上的螺孔323。該套管35具 有與該凸執322相互嵌合的一凹槽351，及多數沿該凹槽 351長度方向排列且貫穿該凹槽351的穿孔352(或螺孔）。 10 該螺栓36是穿經該套管35任一穿孔352且與相對應的螺 孔323螺合。 調整該支腳32長度時，可以鬆釋該螺栓36，藉此， 就可以利用該支腳32的凸執322沿該套管35的凹槽351 上、下伸縮位移至定位後，使任一穿孔352與該支腳32的 15 螺孔323對合，再以該螺栓36穿經該穿孔352與該螺孔 323，使該支腳32獲得定位，同樣可以達到調整該支腳32 長度的目的。 據上所述可知，本發明之可調支腳高度之梯具有下列 優點及功效： 20 本發明可以藉由伸縮的支腳32及旋擺調整角度的腳 板41，穩固地架置在具有落差及凹凸不平的支撐面上，不 但適用地形更為廣泛，且能提昇使用時的穩固效果及安全 性，並符合使用效益。 惟以上所述者，僅為本發明之較佳實施例而已，當不 1240039 能以此限定本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明書内容所作之簡單的等效變化與修飾，皆 應仍屬本發明專利涵蓋之範圍内。1240039 发明 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a ladder, and more particularly to a ladder with adjustable foot height applicable to various terrains. 5 [Prior art] Referring to FIG. 1, take the new patent case No. 256314 “Ladder capable of changing height” as an example. The ladder 1 mainly includes a ladder frame 11, four fitting devices 12 and four movable rods 13. The ladder frame 11 has four support rods 111 and a plurality of pedals 112 connecting the adjacent support rods 111. The fitting devices 12 are respectively disposed on one side of the support rod 111. The movable rods 13 are respectively slidably installed in the support rod 111 and can be locked and positioned with the engaging device 12. Accordingly, the ladder frame 11 can use the telescopic length of the movable rod 13 to adjust the height of each support rod 111, so that the ladder 1 can be adapted to a shape with a height drop such as a staircase. However, although the above-mentioned components can achieve the purpose of adjusting the height of the ladder 1, the following deficiencies still exist in actual use, and need to be solved urgently: Although the ladder frame 11 can use the movable rods 13 to adjust the terrain with a height difference Height, however, these movable rods 13 can only be placed on a flat support surface. If the terrain (such as an outdoor occasion) has a bumpy support surface, there will be a risk of instability or even falling, and There is still room for improvement in terms of safety in use. SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a ladder with adjustable foot height which can be stably mounted on a support surface having a drop and unevenness. Therefore, the ladder with adjustable foot height of the present invention includes: a ladder frame, a 1240039 adjusting component and a positioning component. The ladder frame has a plurality of support rods extending in a linear direction, and most of the pedals are arranged in parallel in the linear direction and connect two adjacent support rods. The adjusting assembly has a plurality of feet which are movably disposed on one side of each support rod of the ladder frame and have a 5 end portion which can pass out of the support rod. The positioning assembly has a plurality of leg plates rotatably pivotally disposed at one end of each leg and attached to a supporting surface, and a plurality of locking members capable of respectively fixing the leg plates. The effect of the present invention is to make the applicable terrain more extensive and to improve the safety of use. 10 [Embodiment] The foregoing and other technical contents, features, and effects of the present invention will be clearly understood in the following detailed description with reference to the third preferred embodiment of the drawings. Referring to FIG. 2 and FIG. 3, a better 15 embodiment of the “ladder with adjustable foot height” of the present invention includes: a ladder frame 2, an adjustment component 3, and a positioning component 4. The ladder frame 2 is generally inverted V And has four supporting rods 21 extending in a linear direction, and a plurality of pedals 22 arranged in parallel in the linear direction and connecting two adjacent supporting rods 21. 20 The adjusting assembly 3 has three screw members 31 arranged in a linear direction and fixed to one side of each support rod 21, and a plurality of legs 32 screwed with the screw members 31. The legs 32 each have an end portion 32 that can penetrate the support rod 21. The positioning assembly 4 has a plurality of leg plates that are rotatably pivoted at each end 32 end 1240039 portion 321 and are attached to a supporting surface. 41, and a plurality of locking members 42 respectively for fixing the leg plate 41. The locking member 42 has a bolt 421 penetrating the end portion 321 of the leg 32 and the leg plate 41, and a nut 422 screwed with the bolt 421 and locking the leg plate 41. 5 In this way, the legs 32 can be retracted and retracted in a linear direction by using a screw-in or swing-out action, so that the support rod 21 of the ladder frame 2 has the function of adjusting the height. See FIG. Terrain (such as stairs). Or as shown in FIG. 5, when the supporting surface is uneven, the nut 422 of the positioning assembly 4 can be released, so that the foot plate 41 can be freely rotated to change the angle, and can be adapted to 10 uneven terrain, and then locked. By tightening the nut 422 and fixing the leg plate 41, the support rod 21 of the ladder frame 2 can be stably supported on the uneven support surface. Referring to FIG. 6, the adjusting component 3 and the positioning component 4 of the present invention may also be disposed on one of the supporting rods 51 of the straight ladder frame 5, thereby, it is also possible to use 15 telescopic feet 32 and a leg plate for swing angle adjustment. 41. It is stably mounted on a support surface with a drop and unevenness. Referring to FIG. 7 and FIG. 8, the adjusting assembly 3 may also have a plurality of sleeves 33 respectively fixed to the side of each support rod 21 and for the legs 32 to pass through, and a sleeve 33 fixed to the legs 32 and passed through. Out of the projection 34 of the sleeve 33. The sleeve 20 has a slot 331 extending along the length direction, and a plurality of latching slots 333 extending from the slot 331 to both sides and forming a bent hook portion 332 upwardly. The protruding bolt 34 is displaceable along the channel 331 and engages with any of the latching slots 333, and is positioned in the hook portion 332. When adjusting the length of the leg 32, the leg 32 can be rotated to disengage the convex 1240039 bolt 34 from the hook portion 332 and the engaging groove 333 and enter the channel 331. The leg 32 is extended and retracted downward to achieve the purpose of adjusting the length of the leg 32. Referring to FIG. 9 and FIG. 10, the adjusting assembly 3 may also have a plurality of sleeves 35 and a bolt 36 fixed on the side of each support rod 21 and for the legs 32 to pass through. The leg 32 further has a protruding rail 322 extending along its length direction, and a screw hole 323 formed in the protruding handle 322. The sleeve 35 has a groove 351 that fits into the protrusion 322, and a plurality of perforations 352 (or screw holes) arranged along the length of the groove 351 and passing through the groove 351. 10 The bolt 36 passes through any of the through holes 352 of the sleeve 35 and is screwed with the corresponding screw hole 323. When adjusting the length of the leg 32, the bolt 36 can be released, whereby the protrusion 322 of the leg 32 can be used to expand and lower the positioning along the groove 351 of the sleeve 35 to make any The hole 352 is mated with the 15 screw hole 323 of the leg 32, and then the bolt 36 is passed through the hole 352 and the screw hole 323, so that the leg 32 is positioned, and the purpose of adjusting the length of the leg 32 can also be achieved . It can be known from the above that the adjustable height of the ladder of the present invention has the following advantages and effects: 20 The present invention can be stably mounted on a platform with a drop and The uneven support surface not only applies to a wider range of terrain, but also improves the stability and safety during use, and is in line with the benefits of use. However, the above are only the preferred embodiments of the present invention, and when 1240039 can be used to limit the scope of the present invention, that is, simple equivalent changes made according to the scope of the patent application and the contents of the invention specification, Modifications should still fall within the scope of the invention patent.
9 1240039 【囷式簡單說明】 圖1是一立體圖，說明公告第256314號「可改變高 度之梯子」新型專利案； 圖2是一立體圖，說明本發明一可調支腳高度之梯的 5 第一較佳實施例； 圖3是一部份立體圖，說明該第一較佳實施例中一調 整組件與一定位組件； 圖4是一立體圖，說明該第一較佳實施例架置在一樓 梯上； 10 圖5是一部份立體圖，說明該第一較佳實施例架置在 凹凸不平的地形上； 圖6是一正視圖，說明該第一較佳實施例中一梯架的 另一種實施樣態； 圖7是一部份立體分解圖，說明本發明一可調支腳高 15 度之梯的第二較佳實施例； 圖8是一立體組合圖，說明該第二較佳實施例調整高 度的情形； 圖9是一部份立體圖，說明本發明一可調支腳高度之 梯的第三較佳實施例；及 20 圖10是一剖視圖，說明該第三較佳實施例調整高度 後的定位情形。 10 1240039 【圖式之主要元件代表符號簡單說明】 2… …梯架 Μ……* &检 21……… …4支撐桿 35……* ♦ ¥ 、w 省 * 22…"…々 ……踏板 35卜… ******* 凹 2 " ……調整組件 352 — …,…穿孑L ¢ +争？ ϋ· *>♦?« ……螺固件 36....... ……*螺检 ……支腳 4 — «……定位組件 3 ^ * -ft ί· » ΐ； -t ί ……端部 1 ……，腳板 322…s… …凸執 42 *…… ……*鎖固件 323……， ……螺孔 421 …” ……*螺检 2 2……… 422 …" …… > 螺帽 3 31…… 5—…, ……♦梯架 332……, …·幫勾咅p 51……· ……*支樓桿 333…… ……卡制槽9 1240039 [Brief description of 囷 style] Figure 1 is a perspective view illustrating the new patent case of Announcement No. 256314 "Ladder with Changeable Height"; Figure 2 is a perspective view illustrating the 5th step of a ladder with adjustable foot height according to the present invention A preferred embodiment; Figure 3 is a partial perspective view illustrating an adjustment component and a positioning component in the first preferred embodiment; Figure 4 is a perspective view illustrating the first preferred embodiment mounted on a staircase 10; FIG. 5 is a partial perspective view illustrating the first preferred embodiment is mounted on uneven terrain; FIG. 6 is a front view illustrating another type of ladder frame in the first preferred embodiment Implementation mode; Fig. 7 is a partial exploded view illustrating a second preferred embodiment of a ladder with adjustable leg height of 15 degrees according to the present invention; Fig. 8 is a perspective combined view illustrating the second preferred embodiment Example of the case of adjusting the height; FIG. 9 is a partial perspective view illustrating a third preferred embodiment of a ladder with adjustable foot height according to the present invention; and 20 FIG. 10 is a sectional view illustrating the adjustment of the third preferred embodiment Positioning after height. 10 1240039 [Simplified explanation of the representative symbols of the main components of the drawing] 2…… ladder frame M …… * & check 21 ………… 4 support bar 35 …… * ♦ ¥ 、 w province * 22… " ... 々… … Pedal 35… ******* Concave 2 " …… adjustment assembly 352 —…,… wear L ¢ + contention? ϋ · * > ♦? ……… Screw firmware 36 ....... …… * Screw detection …… Leg 4 — «…… Positioning component 3 ^ * -ft ί ·» ΐ; -t ί… … End 1 ……, foot plate 322… s… embossed 42 * …… …… * locking piece 323 ……, …… thread hole 421… ”… * thread inspection 2 2 ………… 422… "… … ≫ Nuts 3 31 …… 5—…, …… ♦ Ladder frame 332 ……,… · Hook hook p 51 …… · …… * Boom pole 333 …… …… Slotting
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