摘要：
The present invention relates to a supporting device for a pole and footrest of a stool. The device comprises a lower body that is joined to a complementary upper body by securing means. According to the invention, the lower body comprises an upper part and a lower part, the upper part comprising a recess configured for inserting the pole and grooves slots disposed in lateral walls for coupling spokes that act as a support for footrest, and the upper body comprises lateral walls and is perforated by a through-hole aligned with the recess for inserting the pole.
技术问题语段：
The technical problem addressed in this patent is the inability to optimize the packaging and assembly of stools due to the design of existing stools, which are made from solid pieces or large pieces welded together. The invention provides a supporting device for a pole and footrest of a stool that is formed by small, robust pieces to improve packaging and make it more practical. The supporting device consists of a lower body and an upper body that are secured together using screws. The lower body has a recess for inserting the pole and grooves slots in the lateral walls for coupling spokes that act as a support for the footrest. The upper body has a through-hole and lateral walls with hollow lugs and negatives that fit into the recess of the lower body. The stool also includes a seat, backrest, pole, and base and may have an armrest.
权利要求：
1. A supporting device (1) for a pole (22) and footrest (10) of a stool (23), comprising: - a lower body (3) that is joined to a complementary upper body (2) by securing means, wherein the lower body (3) in turn comprises an upper part (4) and a lower part (5), characterized in that said supporting device (1) comprises: ∘ the upper part (4) comprises a recess (6) configured for inserting the pole (22) and grooves slots (7), disposed in lateral walls (8) of said upper part (4), configured for coupling spokes (9) that act as a support for footrest (10), - the upper body (2) comprises lateral walls (21) and is perforated by a through-hole (12) aligned with the recess (6) for inserting the pole (22); wherein said supporting device (1) is configured to be placed on a base (13) of the stool (23) and support the pole (22) and footrest (10) of that stool (23).
2. The supporting device (1) for a pole (22) and footrest (10) of a stool (23) according to claim 1, characterised in that the recess (6) of the upper part (4) is centred and surrounded by compartments (14) separated from each other by the grooves slots (7), where each compartment comprises a hollow lug in the centre (15).
3. The supporting device (1) for a pole (22) and footrest (10) of a stool (23) according to claim 2, characterised in that the through-hole (12) of the upper body (2) is centred and surrounded by compartments (14), wherein each compartment (14) comprises a hollow negative (16) in the centre configured to fit into the hollow lugs (15) of the lower body (3).
4. The supporting device (1) for a pole (22) and footrest (10) of a stool (23) according to claims 2 and 3, characterised in that it comprises four grooves slots (7), four compartments (14), four hollow lugs (15) and four hollow negatives (16).
5. The supporting device (1) for a pole (22) and footrest (10) of a stool (23) according to claim 1, characterised in that the upper part (4) and the upper body (2) are complementary semi-spheres.
6. The supporting device (1) for a pole (22) and footrest (10) of a stool (23) according to claim 1, characterised in that the securing means of the lower body (3) to the upper body (2) are screws configured to be inserted through the hollow lugs (15) of the upper part (4) from the bottom up and to pass through the hollow negatives (16) of the upper body (2).
7. The supporting device (1) for a pole (22) and footrest (10) of a stool (23) according to claim 1, characterised in that the lower part (5) is a cylindrical body (1).
8. The supporting device (1) for a pole (22) and footrest (10) of a stool (23) according to claims 1 and 7, characterised in that the through-hole (12) and the cylindrical body (1) have a cross section of a lower end that is narrower than the cross section of an upper end.
9. The supporting device (1) for a pole (22) and footrest (10) of a stool according to claim 7, characterised in that the cylindrical body (11) internally comprises a central threaded tubular body (17) connected to three threaded tubular bodies (17) disposed in lateral walls of the cylindrical body (11) by means of ribs (18).
10. The supporting device (1) for a pole (22) and footrest (10) of a stool (23) according to claim 1, characterised in that the lower body (3) and the upper body (2) are manufactured by injection, machining or additive manufacturing.
11. The supporting device (1) for a pole (22) and footrest (10) of a stool (23) according to claim 1, characterised in that the lower body (3) and the upper body (2) are made of metal or plastic.
12. The supporting device (1) for a pole (22) and footrest (10) of a stool (23) according to claim 1, characterised in that the grooves slots (7) are disposed vertically in the lateral walls (8) of the upper part (4) and are equidistant from each other.
13. The supporting device (1) for a pole (22) and footrest (10) of a stool (23) according to claim 1, characterised in that the recess (6) of the upper part (4) of the lower body (3) and the through-hole (12) of the upper body (2) are circular in shape.
14. The supporting device (1) for a pole (22) and footrest (10) of a stool (23) according to claim 1, characterised in that the recess (6) comprises a wing-shaped projection (19).
15. A stool (23) incorporating the supporting device (1) described in any one of claims 1 to 14.