Ladders have been around for over 10,000 years, being utilized by many different businesses and professionals, as well as in households. Evidence proving the first existence of ladders comes from The Spider Caves in Valencia, Spain. Housed inside the cave is a Mesolithic rock painting of two men using a ladder to retrieve honey from a wild honeybee nest. The ladder depicted seems to be a flexible ladder made from a type of grass.
雖然這一證據來自大約10,000年前，但研究人員確定梯子比這更老;被日期回到古老的希伯來語和埃及時代。隨著時間的推移，different forms of ladders從梯級梯子到multi-position ladders已製作以滿足各種需求和需求。
Despite the popularity of ladders and their wide range of uses, many people do not know the different parts of a ladder and their functions. There are many different types of ladders; nevertheless, in this article, we are going to focus on the two most used ladders in the world: the extension ladder and the step ladder.
我們還在本文中為兩種不同類型的梯子組合在一起。
在本文中
階梯梯的一部分
步進梯是一個短折疊梯，平麵和平台。梯田是自我支持的，這意味著它們可以在任何地方使用，並且不依賴於任何類型的支持。步進梯的鉸接部件允許易於存儲。要了解步驟梯子的不同部位非常重要，以便在每次使用之前輕鬆檢查識別損壞或故障部件。步驟梯子由五個部分組成，如下所列：
頂蓋
最高上限ladd並不總是出現在一步ers. Since the introduction of top caps, the practicality of them has increased greatly. Top caps were originally introduced to assist in securing the step ladder together, although many step ladders now feature a tray-like top cap that can be used to hold various items, including nails, tools, screws, and other small items. The top cap is a non-climbing component of the step ladder.
Rear Side Rails
The rear side rails house the bracing at the back of the step ladder and must never be used for climbing or standing on. Note, however, that there are special types of step ladders that have steps on either side and therefore can be used by two people at the same time. The rear side rails are also one of two ‘legs’ that assist the ladder in standing upright.
Front Side Rails
The front side rails house the steps at the front of the step ladder. This is the ‘climbing’ side of the step ladder, unlike the braces in the rear side rails. The front side rails are the other ‘legs’ that assist the ladder in standing upright.
Steps
如上所述，步進梯的步驟容納在前側軌道內。步驟用於踩下的步驟！這些步驟用於爬上梯子。拇指的一般規則是頂部步驟永遠不會與頂蓋一起站（見頂蓋部分）。
Spreaders
除了將框架鎖定到適當位置之外，步進梯的散布器用於防止步梯的框架移動得太遠，當步進梯子打開時使其不向內落入起狀態。一些階梯梯子在步驟上具有防滑塗層，以允許額外的抓地力。
Feet
The main use of step ladder feet is to avert the step ladder from moving and slipping whilst the ladder is being used. It is imperative that the feet on a step ladder are anti-slip and regularly inspected for wear and tear.
Parts of an Extension Ladder
An extension ladder is a leaning ladder that is adjustable in length. Extension ladders are non-self-supporting (as opposed to the step ladder), comprising of two or more sections. The parts of an extension ladder are detailed below:
飛段
延伸梯的這一部分是允許梯子在需要更高位置時延伸。在本節中，蒼蠅上下滑動。這使得延長階梯高度幾乎加倍。飛行部分也稱為伸縮部分。
Base Section
與上下移動以延伸梯子的上部，延伸梯的基部切勿移動。基部與飛行部分互鎖，使兩個部分能夠像軌道式係統一樣起作用。
Rope and Pulley Section
The rope and pulley section of an extension ladder allows for the fly section to move up and down. The rope is pulled to elevate the fly section.
梯級和梯級鎖
擴展梯形上的梯級與步進梯子上的步驟相同的目的。它們用於上下梯子。延伸梯上的梯級是梯度梯子的一半。這是為了讓飛行部分上下滑動。梯級鎖定到位，將延伸梯的飛段鎖定到位。這是在延長時停止擋住梯形圖。當需要縮回飛行部分時，隨著梯級鎖定鉸接向上滑過基礎梯級，這很容易完成。
Feet
與梯子梯子一樣，延伸梯上的腳有用相同的目的;在使用時停止延伸梯子滑動和移動。這些腳也必須是防滑的，以抵禦由延伸梯子移動或滑出的延伸階梯引起的任何事故。
Conclusion
梯子的部件對使用每種類型的梯子至關重要。從銷售人員提供各種梯形圖型的知識的信譽良好的來源中購買梯子非常重要。這將幫助您購買適合您需求的最佳階梯。如上所述，定期檢查梯子是否需要磨損和撕裂，並在需要更換零件時訪問您當地的聲譽店。
