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How do I protect external roller shutters from crushing when they stop?

miroslaw wielki 1878 48
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #31 18245298
    Ryszard49
    Level 38  
    miroslaw great , that's right but it all depends on the position of the roller shutter at the jamming point and that's where the problem is.
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  • #33 18245314
    Rysiek2
    CCTV and Stationary Alarms specialist  
    Ryszard49 wrote:
    I had a blind destined for loss so I could test any ideas without fear of damaging anything
    .
    Well what ideas did you test?

    Ryszard49 wrote:
    I didn't want to put any extra wires into the cassette though.

    Then how do you imagine any safety device?

    Ryszard49 wrote:
    The additional device would have to fit into the cassette and not interfere with the operation of the roller shutter.

    The problem, however, is that the roller shutter stops outside the cassette.

    Ryszard49 wrote:
    It was not that simple. Unfortunately, a positive solution was not found.


    With such input parameters it is not surprising.
  • #34 18245329
    Ryszard49
    Level 38  
    Rysiek2 :
    Quote:
    No and what ideas did you test?
    .
    Limit switches, proximity switches and anything else I could think of
    Quote:
    This is how you imagine any safety device?
    .
    Limit switch plugged into the motor supply circuit
    Quote:
    But the problem is that the roller shutter stops outside the cassette.

    And here is a good point, and one that needs to be added in random positions

    I am even considering using the recommended systems, but no one in my town can do a physical demonstration of how it works. Should I buy a cat in a bag?

    miroslaw great .
    As I wrote above no one can give any sensible answer about these systems.
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  • #36 18245360
    Ryszard49
    Level 38  
    miroslaw great , this was the first thing I replaced, in fact the previous hangers were damaged. When the roller shutter was jammed on these new rigid hangers the profiles were damaged, they were hooked out, in short they came apart.
  • #37 18245588
    miroslaw wielki
    Conditionally unlocked  
    Please write something optimistic. Because the last 3 hour action with the straightening of the locks in the slats made me a bit nervous.

    Added after 8 [hours] 37 [minutes]:

    One more question: where to buy staples such short ones for fixing the ends of the panels?
  • #38 18245615
    bhtom
    Level 38  
    Welcome,

    I've come up with this idea... However, I say straight away that I don't know anything about building roller shutters, and I only know how they should work :) .
    Namely, mount a reed switch on the inside of the guide, at the top, and small neodymium magnets on the individual panels. Then when moving, at least in theory, the reed switch should be stimulated by more magnets. If the roller shutter locks into the guide then the reed switch will stop being excited - a sign of failure.
    There is still the question of the logic which will switch the drive off if there are no impulses from the reed switch during movement.
    If I am thinking wrongly please forgive me.... :)

    Regards.
  • #39 18245616
    miroslaw wielki
    Conditionally unlocked  
    You're thinking correctly, only there's no room for those magnets on the side of the panel strips
  • #40 18246853
    Anonymous
    Level 1  
  • #41 18246864
    haneb
    Level 24  
    miroslaw wielki wrote:
    Well thought only there is no room for those magnets on the side of the panel strips
    In the profile itself you can put. In "our" aluminium ones the plastic termination is every other one so it's all too much.
    We have already installed quite a few roller shutters at customers in our company and only once did I encounter an "obstacle". Someone closed the roller shutter when the car bonnet was sticking out of the garage. The result - 4 broken hangers-blocks and a half-open cassette. Our profiles do not have the ability to roll the other way. It's quicker to pull the hanger out. Since then I've been wondering how this can be secured, but I haven't come up with anything concrete either.
  • #42 18246904
    miroslaw wielki
    Conditionally unlocked  
    Gentlemen brainstorm or have someone break down the original engine with detection
  • #43 18246918
    CYRUS2
    Level 43  
    miroslaw wielki wrote:
    Gentlemen brainstorm or someone should break down the original motor with detection
    The problem is something else.
    You don't remake the roller shutter, you don't add anything there.

    Stopping , or a higher load on the motor can be determined.
    That much can be done.
  • #44 18246919
    Ryszard49
    Level 38  
    miroslaw great , it is unlikely that anyone will dismantle such an engine due to the really high price.
  • #45 18246950
    miroslaw wielki
    Conditionally unlocked  
    In my spare time I'm going to roll up the chassis and observe how high it lifts the panels in the cassette when locked. I have these 250V 5A burges micro switches and I will put one under the ceiling of the cassette
  • #46 18246967
    Ryszard49
    Level 38  
    miroslaw great , it all depends in which position the blind is locked. When lowering the profiles will rise , while when raising it will tear the profiles.
    When lowering the roller shutter, if it locks about 10 cm from the lower position and you have rigid hangers, it will tear the profiles at the joint, I have checked this.
  • #47 18246974
    miroslaw wielki
    Conditionally unlocked  
    When lifting, the current will increase. Mi two ground when lowering.
  • #48 18246998
    Ryszard49
    Level 38  
    There is a small but. If you have profiles with perforations, when the bottom bar hits an obstacle and stops, the motor continues to run as if nothing had happened until the perforations close. Then the boom happens.
  • #49 18251152
    miroslaw wielki
    Conditionally unlocked  
    Well, then it first swells in the cassette before it turns to the left side
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Topic summary

The discussion revolves around securing external roller shutters to prevent motor damage when they stop, particularly focusing on the issue of crushing panels against the tube. Participants explore various solutions, including obstacle detection systems, limit switches, and alternative sensors like reed switches and micro switches. The conversation highlights the challenges of implementing these solutions without modifying existing roller shutter systems. Users share experiences with different motor types, including those with obstacle detection, and discuss the limitations of current products available in the market. Suggestions include using IR barriers, mechanical pulsers, and exploring existing systems for potential adaptations. The need for a reliable detection mechanism to prevent motor overload and panel damage is emphasized throughout the discussion.
Summary generated by the language model.
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