Portable Climber Standard Description (Elevator)
Climbers have international standards, including EN 1808 and European CE standards. Climber system (elevator) is a device for access to height and is designed for lifting and compliance with standards is very important due to the connection of this device with user safety and very numerous and strict requirements in the design, construction and production of this type. The device is applied. In European and Asian countries, companies producing climbers or elevators are required to receive these standards and must comply with all the safety requirements described in this standard and the minimums defined in them.
According to the defined standards, portable climbers are divided into two categories: electric portable climbers and manual portable climbers, and all safety issues and how to design and build these devices are also described. The portable climber system must meet the minimum defined criteria, and manufacturers are required to produce their products in full compliance with these standards and guidelines.
The most important climber systems that are classified in EN 1808 standard are the following systems:
Electrical Suspended Scaffoldings
Manual Suspended Scaffoldings Portable Mechanical or Manual Climbers
Roof car climbers
This article refers to the important and standard cases of portable electric and manual climbers (elevators).
1- Standard Electrical Suspended Scaffoldings
Electric Portable Climber or “Electrical Suspended Scaffoldings” is a temporary device for accessing the height. The term temporary means that this system is not permanently installed in construction and industrial projects and is portable and can be easily opened and closed, transported and stored if needed. All design and construction parts of this device are compiled in EN 1808 standard. It should be noted that climber systems, due to the specific user interface defined for them, must comply with the minimum safety and design systems set out in EN 1808.
The most important part of these devices is as follows:
1-1- “Hoist” deadly winches. Deadly winches are the most important part of the set of climbers and the supplier is responsible for the necessary force for lifting.
2-1-Cabin or platform for users “Suspended Platform”. The cabin is the location of users of the device. Users are placed inside the cab to access the height and control the device using the control box installed inside the cab.
3-1- Suspending Mechanism “Suspending Mechanism” restraining structures are metal structures to withstand the weight of the cabin and the load inside. The design and construction of these structures is of great importance due to their role in the safety of the device and their models are discussed in EN 1808 standard.
1-4-Safety systems of portable electric climbers. Climber systems have several safety systems that ensure the safety of the device in case of emergency. The use of multiple safety systems is one of the requirements of EN 1808 standard, and the use of these systems can ensure the safety of users inside the device in critical situations such as the main tow wire cut, the device falls, and so on.
5-1- Electrical switchboard. The controller is a device and has various electrical and safety systems and all the necessary items for this controller are defined in EN 1808 standard.
6-1- Main towers and safety
2- Manual Suspended Scaffold Portable Mechanical or Manual Climber
The input force required to lift these devices is done by hand force and by pedaling by the user. In these devices, special winches are used, which are called manual winches, and inside them, various anti-fall and emergency stop systems are used. The manual climber system works without the need for electricity and is lighter in weight than portable electric systems. In the design of this device, an attempt has been made to integrate all safety systems inside the winch of the device and reduce its overall weight. Slowly The manual climber system is also under the function of EN 1808 standard and it is required to install various safety systems on it. The portable manual climber set also includes several parts such as deadly winches, user cabins, and supporting structures.
The handheld portable climber is designed to work with the user’s hand input force, and as a result, the internal components of the deadly winches are thinner than the electric climber winches, and as much as possible has been tried to reduce the overall weight of the device. It should be noted that in this type of climber, all safety systems are concentrated inside the deadly winches themselves to reduce the overall weight of the device and make it easy to use, while in the electric climber, the emergency brake device enters the inlet through through high torque. The electric gearbox motor is considered separate.
The difference between an electric portable clipper and a handheld portable clipper
1- Electric climber killer winches have more volume and weight and their input power is supplied by at least a 1.5 kW gearbox motor with a conversion ratio of 1/15 to 1/20. Therefore, due to the high input torque in electric winches, their internal structure is also designed for high input torque. While the input force of manual winches is the force of the user’s hand, which injects much less torque than the gearbox motor and is smaller in size and has thinner internal parts.
2- Electrical switchboard Portable electric climbers have several systems and there is no electrical switchboard in the manual climber.
3- Electric portable climber tow wires have a different texture and structure from manual portable climbers due to the high power of deadly winch.
4- Structures holding the roof, basket and cabin of electric portable climbers have a different and more professional structure than the case of manual portable climber. In the manual portable climber, an attempt is made to reduce the overall weight of the device so that the force applied by the user’s hand, which is more limited than the electric climber force, is used optimally, so the portable manual climber cabin is simpler and has less weight and lower efficiency. Baskets and structures are portable electric climber inhibitors.
An important conclusion that users and buyers should consider when purchasing the device
1- Due to the fact that the operation of the climber system is directly involved with human lives and their correct operation is of great importance, so it is recommended to pay attention when buying that the product is offered at least international standards, including Received the mandatory standard EN 1808, which is specific to climber systems.
2 – Homogeneous, which was described in the section on the type of portable climber (above), the structure of manual and electric portable climbers are completely different. In the portable electric climber, all parts of the device are designed to work with electric jacks, and the portable manual climbers are designed to work with hand force, and EN1808 emphasizes the importance of never manipulating and adding to the gearbox motor. Do not turn the hand winch into an electric one because it can have irreparable consequences. Reputable international companies producing hand clamps have issued instructions on several occasions and have strongly emphasized that the structure of these devices should not be manipulated.
Unfortunately, it has been observed in some cases that manual climbers are converted into electric climbers by adding a gearbox motor and a hand-made electrical panel, and because their price is lower than electric fabric climbers, in some cases they are welcomed by consumers. .
Therefore, it is strongly emphasized that manual climbers are designed to work with the user’s hand force, and by adding a gearbox motor to it, which applies a lot of torque to the hand force, in practice, all the hand winch safety systems are disrupted and In emergencies such as cuts in the main tow wire, it can not have the necessary stability and can have irreparable consequences.