17 replies to this topic

[Superchairliftfan]

How does a 3s (like the one at Kitzbuhel) work? Those grips look really confusing.

[Superchairliftfan]

Plz tell me...

[skierdude9450]

It's basically a detachable tram. You have a funitel sized gondola car, but instead of having two haul ropes (or DLM system with one haul rope) you have one standard haul rope with a detachable grip (I think that the 3S at Kitzbuehel uses the Agamatic series), and you have two track ropes that the cars are supported on. In the station, it works like any other gondola as far as conveyence. Here's some pictures of the Kitzbuehel 3S.
http://www.seilbahnt...4008/photos.htm

Also, here's a report of the other 3S, L'Olympyque at Val d'Isere in France.

http://www.remontees...portage-41.html (In French)

This post has been edited by skierdude9450: 03 January 2008 - 10:06 AM

[skierdude9450]

Also, here's a report of the first 3S, Alpin Express in Saas Fee, Switzerland built by Von Roll.
http://www.remontees...ortage-210.html (In French)

This post has been edited by skierdude9450: 03 January 2008 - 10:17 AM

[Superchairliftfan]

skierdude9450, on Jan 3 2008, 10:05 AM, said:

It's basically a detachable tram. You have a funitel sized gondola car, but instead of having two haul ropes (or DLM system with one haul rope) you have one standard haul rope with a detachable grip (I think that the 3S at Kitzbuehel uses the Agamatic series), and you have two track ropes that the cars are supported on. In the station, it works like any other gondola as far as conveyence. Here's some pictures of the Kitzbuehel 3S.
http://www.seilbahnt...4008/photos.htm

Also, here's a report of the other 3S, L'Olympyque at Val d'Isere in France.

http://www.remontees...portage-41.html (In French)

What's an Agamatic? What you said makes a bit of sense.

[Lift Kid]

Superchairliftfan, on Jan 3 2008, 12:58 PM, said:

What's an Agamatic? What you said makes a bit of sense.

The Agamatic grip is one of Doppelmayr's current detachable grips. It involves two springs, and a mobile jaw.

[Superchairliftfan]

Lift Kid, on Jan 3 2008, 11:19 AM, said:

The Agamatic grip is one of Doppelmayr's current detachable grips. It involves two springs, and a mobile jaw.

How does it work? Diagrams plz?

[skierdude9450]

Here's a page on the Garaventa AK-400 grip which is very similar to the Agamatic A-100s series grip.
http://www.skilifts.org/tech_ak400.htm

Here's a picture of an A-104, which is the High Speed Quad grip. For the 3S, I think Doppelmayr uses a slightly modified version of the A-108, which is the gondola grip.

Attached File(s)

•  913.JPG (1.21MB)
  Number of downloads: 24

[Superchairliftfan]

What about the mid-90s style grips?

[Lift Kid]

Superchairliftfan, on Jan 3 2008, 05:22 PM, said:

What about the mid-90s style grips?

What lift, Doppelmayr, or Garaventa?

Doppelmayr Mid 90's:

In the mid 90's Doppelmayr used the DS grip and the DT grip. The DT grip was the one with the torsion bar and is still used on some installs. The DS was the 80's to 90's detach grip. Both the DT and DS grips lock open inside of the terminals, unlike the Agamatic.

DS:



DT:



As for how the Agamatic works, it is very similar to the Poma and Leitner-Poma grips, where a rail in the terminal compresses the springs by pushing down on the roller at the tallest point of the grip, aka the Principal Roller (on top of springs). This opens the mobile jaw (the part that grips the cable). The carrier goes above the grip on a rail, being guided by the two rollers below the springs. The entire time the carrier is in the terminal, tires guide it and move the carrier.

[Superchairliftfan]

How does the DT work?

[Lift Kid]

Superchairliftfan, on Jan 3 2008, 07:47 PM, said:

How does the DT work?

The DT and DS grips are, unfortunately not my specialty. I am going to let one of the industry guys, or other person answer this one. I am just as curious. How do the DT and DS grips work?

[skierdude9450]

This picture of the carriage should explain everything. This is of the 3S L'Olympique at Val d'Isere.

It is basically an upside down High Speed Quad grip. There are two double spring grips. Each grip has an upper and lower spring. When they go over the compression rails, the two sets of springs squeeze together opening the grips.

The two grips:

 Olympique_1.jpg (81.23K)
Number of downloads: 42

The springs:
The front two make one grip, and the back two make the other.

 Olympique_3.jpg (48.28K)
Number of downloads: 42

On the line:

 Olympique_4.jpg (97.85K)
Number of downloads: 46

[Superchairliftfan]

skierdude9450, on Jan 6 2008, 08:27 PM, said:

This picture of the carriage should explain everything. This is of the 3S L'Olympique at Val d'Isere.

It is basically an upside down High Speed Quad grip. There are two double spring grips. Each grip has an upper and lower spring. When they go over the compression rails, the two sets of springs squeeze together opening the grips.

The two grips:

Olympique_1.jpg

The springs:
The front two make one grip, and the back two make the other.

Olympique_3.jpg

On the line:

Olympique_4.jpg

What are the little V-shape objects along the line?

[lastchair_44]

Superchairliftfan, on Jan 10 2008, 08:51 AM, said:

What are the little V-shape objects along the line?

They're called slack carriers, and they are attached to the track cables to support the haul rope.

[liftmech]

Lift Kid, on Jan 3 2008, 06:34 PM, said:

As for how the Agamatic works, it is very similar to the Poma and Leitner-Poma grips, where a rail in the terminal compresses the springs by pushing down on the roller at the tallest point of the grip, aka the Principal Roller (on top of springs). This opens the mobile jaw (the part that grips the cable). The carrier goes above the grip on a rail, being guided by the two rollers below the springs. The entire time the carrier is in the terminal, tires guide it and move the carrier.

Make that the compression roller. 'Principal' roller is another name for support roller or running wheel, whis is one of the main rollers you see on a grip. They bear the weight of the grip and carrier and guide it through the terminal in the rails. The compression roller operates only when in contact with the compression rail.

[skierdude9450]

Superchairliftfan, on Jan 10 2008, 08:51 AM, said:

What are the little V-shape objects along the line?

They're also there to maintain the space between the track ropes.

[Superchairliftfan]

skierdude9450, on Jan 10 2008, 03:57 PM, said:

They're also there to maintain the space between the track ropes.

I see. Where could I find a diagram on the Agamatic?