Studying the Elevator Drawing

Before we begin if you already know this you can skip to

Studying Elevator entrance in drawings ( detailed )

If you are unfamilier about elevator basics, how elevators works and all you have to first read

Elevator Basics

If you come across any doubt please comment below. This will help us to post your question's solution. And will help you and anyone reading this article.

So back to the subject.....

           The elevator drawings are easy to read. They will be a little confusing at the first. But if you once get a hold on it then its fine. To read the elevator drawing, you must know the parts of an elevator. I mean the common parts of an elevator. The elevator have different kinds of drawings.

1. Shaft top view ( shaft plan ).
       Some will say hoist-way for the shaft (Click here if  you don't know what a shaft is ).
      This drawing shows the main bone positions of elevator guide rails, distance between rails, cabin size, shaft size, entrance size, entrance position, running clearance, counter weight position. counter weight size, etc..
   

               The above drawing shows the typical elevator shaft plan. I hope you know about the below terms already

1. Elevator car
2. Rail
3. Sill
4. Entrance
5. Counter weight
6. Shaft / hoist way

              If you don't know about the above terms please go to "elevator tree" and select your appropriate level.

             Ok. Now all of you reading this should know the above terms. The elevator/lift shaft plan is one of the main drawing that need to be understood thoroughly. This drawing is the top view  ( view from the top ).
         
            Now you can see the shaft. The inside dimensions of the shaft is the one we need to take care of. Here you can see the shaft depth and width which are the main dimensions from which we will be deriving another measurements.
           Now the actual purpose of the drawing is to give the exact guidance for shaft/ hoist-way construction and elevator/lift installation. The shaft plan is used to make the template for the lift installation. You can always refer the elevator tree in menu bar for knowing more about shaft plan.

Car DBG
The measurement is the distance between two guide rails that guide the elevator cabin , other vise called elevator car or lift car. This is an important measurement because guide rails should be completely perpendicular and parallel without any twist. The DBG ( DISTANCE BETWEEN GUIDE RAILS)    must be exactly the value given in the drawing in all along the elevator shaft.
This will determine the quality of the elevator ride in the mechanical manner.

Counter weight DBG
As in the case of CAR DBG this is the displacement between  two guide rails which are guiding the counter rails. As in the case of CAR DBG this measurement also will effect the quality of the elevator ride.

Landing clearance / Running clearance
This is the distance between landing sill and car sill. This measurement is universal. it will be always 30mm. Usually this will not be included in the drawing but we have to include this in our calculations. This measurement is so important because this small gap should be maintained all along the lift travel. Passenger safety and door coupling are depending up on it. The huge moving elevator car is moving in this clearance with the stationary lading entrance.

Car rail center line & Entrance center line

In the drawing you can see there is two car rail center line.
1. Horizontal
2. Vertical

both are important lines.

Entrance center line is also shown in the drawing. The importants of this is in some drawing the vertical car center line and the entrance center line( clear opening center line) may not be aligned. There may be an offset between these two. The offset is a very important measurement need to be considered during the installation. In the below drawing you can see the entrance offset explained.

Elevator Companies - Main stream

       

         

                       The elevator or lift business is a competent one now. It all starts when the plots are filled with buildings. Then people started thinking about making multi storied buildings. The importance and necessity of elevator became clearer than ever before. As the buildings grow taller the fortune of the elevator industry also got the green signal which is never red until now. Still now there is nothing else to replace lifts in buildings. As the green signal glowed , investors started to enter the market.
                       
                       Nowadays the lift market came faraway from where it started. Product diversity, product quality, product life, service quality, service quantity, execution and presentation level, all these factors are improved. No need to mention the explosion of turnover and expansion of international business. In terms of technology the improvement is unimaginable. The traveler's safety, comfort.. etc, all are at a level which wouldn't have involved in the dreams of elevator people of history. As the competition is tight in the market the companies are grown in to  socially committed organizations. They are thinking of making their brand more and more respective in society by getting involved in the global problems.This means the areas of technical aspects are almost covered now.
       
                 As we have now reached the era of  technological explosion, the companies leading the front have all the facilities that can be offered in the field.

                 The prices of low and mid - financial sections are very competitive. The higher financial sections are ruled by relation-experience and feedback trios.
       
               The main line companies offers world class product and service.
       
               Once the elevator order confirms, the relation of company with the client starts and it ends until the maintenance contract goes away from the company of some reason. So the selection of the elevator company for a project need to be very care full.
            Also Mr. Job seeker ..... you .. too need to be careful before selecting the company.
           
            Before that keep it in mind that   first of all you have to check , which list of companies will select you as their employ!!!... means your skills and qualifications.
         
             The job seeker need to check the facilities in the company... not what you hear in an interview. But you have to check what's the situation actually is.
         
             Training facilities, payroll, reputation, brand, chance of growth, history, etc.. have to be checked by the job seeker. We will be posting soon regarding
       
            How to select your elevator company as an employer...

            And

            How to select an elevator company as a customer.

Anyways
The main first-class companies in the world are listed below.

Elevator companies.
1. Otis
2. Mitsubishi elevators and escalators
3. Schindler
4. Kone
5. Thyssenkrupp
6. Toshiba
7. Hyundai
8. Hitachi


Cick on the comapnies names to know more