Description:Looking for an engineer who can design a wall grappling hook that can suspend a hanging chair hammock between two partition walls in a toilet stall. The chair hammock has 4 straps which are attached to 4 identical wall hooks affixed at the top of the toilet stall partition. The hook must be able to hold securely in place as load weight is gradually applied. The typical user will install the hammock as follows: attach hooks on the side partition walls of the toilet stall - towards the front and back of stall and on both sides, attach hammock straps onto the hook, sits down on the hammock and if necessary get back up to adjust straps to ideal chair height and position. Previous designs of the hook did not stay in place and slid towards the centre of the wall due to side torque as weight was applied via the straps at roughly 45 degree angles (which also damaged or marked up the walls). We need a rockstar engineer who can solve this design challenge with a sense of humour.
Wants:a) Hook design must be the same for all 4 attachment points i.e. no left or right, back or front specific hooks
b) Hooks can withstand 100kg static load with side torque
c) Hooks must remain firmly in place with side torque as weight is applied at 45 degree angle
d) Hook must allow for partition wall width variance of between 10 - 15mm as toilet stall designs / materials vary
e) Hook must not scratch the wall i.e. use of rubber or similar material
f) Hook mechanism must be easy / quick to install and snap into place (like a vice grip) to give assurance that hook is secure and will not move as weight is applied
g) Design must be as light and compact as possible to ensure portability and reduce shipping costs
h) Design must be as unobtrusive as possible so that hook is not too noticeable in adjacent toilet stall or outside of stall
i) Design is relatively cheap to manufacture with low volume; note that we tried 3D printing with previous designs but needed special resin due to weight (regular plastics broke under stress)
Don't Wants:Simplicity is best - no complicated designs
Try and leverage existing product designs (per attached photos)
#46 HOOK 3d by Alzazari_tech
#36 Simple Hook Design by Harjeet Sharma
- Siemens NX (Unigraphics) 10 — Hook Version-1
- Siemens NX (Unigraphics) 10 — Hook Version-2
- Siemens NX (Unigraphics) 10 — Hook Version-3
- Siemens NX (Unigraphics) 10 — Hook Version
- Siemens NX (Unigraphics) 10 — Hook New D-1
- Siemens NX (Unigraphics) 10 — Hook New D-2
- Siemens NX (Unigraphics) 10 — Hook New D
#47 Lever clamp v2 by Serge Krjukov
#53 Hook Design for The World's First Toilet Stall Hammock by Harjeet Sharma
#19 SNUZR Hook by FreelancerM
- STEP/STP 3D Modeling — Hook Assembly
- 3D PDF — Hook Assembly 1
- 3D PDF — Hook Assembly 2
- 3D PDF — Hook Assembly 3
- 3D PDF — Hook Assembly 4
- 3D PDF — Hook Assembly 5
- 3D PDF — Hook Assembly 6
- 3D PDF — Hook Assembly 7A
- 3D PDF — Hook Assembly 7B
- PNG — Hook1
- PNG — Hook2
- PNG — Hook3
- PNG — Hook4
- PNG — Hook5
- PNG — Hook Assembly 6
- PNG — Hook7A
- PNG — Hook7B
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