Tiger Seat Bottom Frame Differences
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seats
this photo is the basic style of seat frame that was used from series 3 alpines thru series 5 and tigers. this is the type with the loose back flap used in series 4 alpines and MK 1 tigers. the early alpine seats did not have an adjustable back and were not a two piece frame.
this photo is the basic style of seat frame that was used from series 3 alpines thru series 5 and tigers. this is the type with the loose back flap used in series 4 alpines and MK 1 tigers. the early alpine seats did not have an adjustable back and were not a two piece frame.
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Don't have photos of the frames, but apart from the different way the backrest squab was done ( floating price) the difference in the frame was just detail on the base iirc where the attachment points are for the straps on series 3/iv and mki. vs the diaphragm on the series v / mkia/ii tiger
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seat
most of the seat frames that I've seen restored including the one in my photo have had more than one of the tubes replaced. Doug used two sets of frames plus other metal to restore these seats. the series 3 and 4 alpines and MK 1 tigers also had what appeared to be a sewn nylon anchor piece that wrapped around the side tubes and this is where the straps attach and not to the frame itself. the frame in my photo has the straps and has new cloth anchors on the driver seat. the passenger seat still has the original pieces. the diaphragm for later seats did attach to the seat frame tubes.
most of the seat frames that I've seen restored including the one in my photo have had more than one of the tubes replaced. Doug used two sets of frames plus other metal to restore these seats. the series 3 and 4 alpines and MK 1 tigers also had what appeared to be a sewn nylon anchor piece that wrapped around the side tubes and this is where the straps attach and not to the frame itself. the frame in my photo has the straps and has new cloth anchors on the driver seat. the passenger seat still has the original pieces. the diaphragm for later seats did attach to the seat frame tubes.
Thanks for the replies and photos. Much appreciated.
The seat frames I have are the same as in beam's photos.
I am in the process of replacing the seat foam and when I stripped the seat I found the nylon support and straps to be in quite a bad way.
I'm going to try and replace this with the later diaphragm and hooks.
I've been shown a photo of one that has been done but modification work has to be done to make it fit as the seat rails are too far apart.
I was curious how the later seat frame that uses the diaphragms differs from the one I have and how the front of the frame is different.
I'm trying to get a better understanding of the 2 different frames.
Many Thanks.
The seat frames I have are the same as in beam's photos.
I am in the process of replacing the seat foam and when I stripped the seat I found the nylon support and straps to be in quite a bad way.
I'm going to try and replace this with the later diaphragm and hooks.
I've been shown a photo of one that has been done but modification work has to be done to make it fit as the seat rails are too far apart.
I was curious how the later seat frame that uses the diaphragms differs from the one I have and how the front of the frame is different.
I'm trying to get a better understanding of the 2 different frames.
Many Thanks.
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seat
sunbeam specialties has always carried the cloth for attaching the straps and also the straps. they're still listed in his catalog. replacing the straps would be an easier option. you would have to drill holes in your frames to use the series 5 / tiger diaphragm.
sunbeam specialties has always carried the cloth for attaching the straps and also the straps. they're still listed in his catalog. replacing the straps would be an easier option. you would have to drill holes in your frames to use the series 5 / tiger diaphragm.
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I quite liked the idea of 'updating' the cloth to the diaphragm which in turn would simplify what is quite a complicate arrangement.
I've seen a picture of one that has been converted....
As you can see, the rails are a little bit too wide for the diaphragm and small tabs have to be fitted and a front rail too.
I was curious how a later seat frame differs so these small modifications aren't required.
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seat
your picture shows a seat with the same basic idea of the strap usage. the straps are attached to the metal in the pocket of the cloth by using hog rings. it's hard to tell if the metal bands are fastened to the frame or wrapped around it . I know of a series 5 alpine that has a series of woven straps that run from side to side and front to back. that makes for a solid platform with very little movement for the seat cushion. slight modification required to suit the owner.
your picture shows a seat with the same basic idea of the strap usage. the straps are attached to the metal in the pocket of the cloth by using hog rings. it's hard to tell if the metal bands are fastened to the frame or wrapped around it . I know of a series 5 alpine that has a series of woven straps that run from side to side and front to back. that makes for a solid platform with very little movement for the seat cushion. slight modification required to suit the owner.
I think those straps are riveted on.
Anyway, I've taken the plunge.
The diaphragms I have are larger than the one in the pic (I thin they are Rick's) and I have been able to drill holes into the tubes and attach the clips straight into them.
I welded a piece of galvanised steel angle onto the front but tapped the top face down at a slight angle towards the centre of the seat to accommodate the clips and sponge when a bum is sat on it.
I'll post up a few pics if anyone is interested.