DE9213302U1 - Higher heel, cushioned in stiletto or conical wedge shape - Google Patents

Abstract

The figure shows a highly raised heel with a comparatively thin, narrow underside, of the high heel type (22); an inelastic hard core component as a stabilising component (1) with a straight surface (1c) on the inner surface of the closable cover (9) of the one-piece soft flexible envelope (6) which surrounds the core (4) and is made of a layer of elastic material with high inherent damping coefficient as the damping component. When the heel sole is manufactured separately, the envelope has its maximum no-load thickness at the envelope cover (5a). When the heel sole is manufactured as part of the heel, the envelope has its maximum no-load thickness at the sole (5). The envelope is parallel (21) to the outer faces of the core and extends round all sides of the heel. The heel is attached to the surface (2) of the cover and the outer, higher envelope external wall -- compared to the core height -- by securing the upper surface (22) by a screw, nailing in the hard core (3), the screw being given stability by a hard plastic ring (10). The soft outer envelope is placed or applied by extrusion loosely with no attachment to all the inner envelope walls and is higher than the inelastic core (7a in the no-load state).

Description

Fusaro Ingeborg Description Page 1

1. Description

Higher heel, cushioned, in stiletto or conical wedge shape, according to claims 1 to 22

The invention relates to a shoe heel of greater height for footwear in the form of a stiletto or conical wedge, closed at the top and bottom, with a hard, rigid, inelastic core, solid or hollow, as a stabilizing element, and an outer shell made of soft-elastic material with high inherent damping, as a damping element, which is higher in the unloaded state than the hard inner core, according to utility model G 9201. 107.1, German patent no. P 42 19 152.1, PCT/DE 92/00563 and utility model G 9209.230.6/26

2. State of the art

Utility model G 9201.107.1 shows a shock-absorbing heel for shoes, closed at the top and bottom, with an unyielding hard core as a support element and a soft elastic outer shell as a dampening element. The outer shell is tightly closed with a cover made of soft elastic material and attached to the shaft with a screw, nails, glue or a pressure pin. The core has a straight surface with no steps at the top towards the shaft. The heel core tapers towards the end.

Patent No. P 42 19 152.1 and PCT/DE 92/00563 show the process for producing the impact-damped heel according to utility model G 9201.107.1, whereby the Shore hardness of the heel cover was changed.

Utility model G 9209.230.6/26 shows a modified top and bottom surface of the hard core piece with a corresponding outer shell, whereby the shell can be removed and the pressure on the tread surface is even more evenly distributed on the bottom by the convex design of the core piece.

Fusaro Ingeborg Description Page 2

3. Object of the invention

The present invention is based on the object of creating further technical design options for the heel according to the invention and of further developing the already known heel by showing further modification options for the hard core piece and the corresponding soft-elastic outer shell.

4, Solution of the task

According to the invention, the object or problem is solved with the measures of claims 1 to 22 in that

1. in all heel variants, the soft elastic outer shell (6) is higher in the unloaded state than the hard inner core (1);

2. in all heel variants, the heel is closed at the top and bottom (7) by the core piece and the clamped outer walls of the outer shell (2) or the outer shell cover (2) in a known manner;

3. the soft outer shell is loosely placed on the core (6a). This is achieved by the hard inner core (1) having different shapes pointing towards the shaft. with a possible flanging of the outer shell (16):

(a) the upper shape of the core has a rounded gradation (la);

b) the upper shape of the core piece has an oblique or straight hook shape gradation; (Ib);

c) the upper shape of the core piece has a straight surface without gradation (Ic):

A and b have an outer casing flange, c has a lid with a locking nipple or locking grooves. The casings are removable in a, b and c. ;

4. the shape of the hard core piece on the side walls tapers towards the tread surface in parallel (21), concave (21a) and convex (21b) designs, the inner walls of the outer shell correspond to this (5, 5a, 5b);

Fusaro Ingeborg Description Page 3

5. the shape of the outer walls of the elastic outer shell is determined by the injection mold used - this also determines the appearance of the outer shell, whether it has a smooth surface, with grooves, without grooves and the appearance of a layered heel (11, 14);

6. the cover is molded onto the walls of the soft outer cover (6) on one side in one operation, overlaps the side walls of the outer cover and is closed with pressure nipples or corresponding locking grooves (9) after the hard core piece (1) has been inserted, the cover can thus be removed;

7. a metal or hard plastic ring (10) is placed around the fastening screw (3) in a recess in the outer casing cover, which ensures the stability of the screw in the soft casing path of the outer casing;

8. the heel is manufactured with a separate heel patch (17) and that the heel patch is made of the same material as the outer shell, to which one or more pins made of hard plastic are foamed or cast or injected in one process;

9. the independently manufactured heel patch consists of different heights or thicknesses (18, 18a);

10. pre-drilled holes are already present in the core piece for the heel patch to be used during repairs for its pins if the heel is made without a separate heel part;

11. the hard inner core (1) extends almost to the end of the heel, towards the tread (15);

12. the heel is manufactured as a separate part or as a sole-heel unit. The sole is made of the same material as the heel or the sole is made of a different material (19,20);

13. the hard core is manufactured independently and is inserted after the soft outer shell has solidified (1,6), or the core is inserted into the injection mold before the soft outer shell is injected (1,6);

14. the hard inner core (1, 12) is firmly connected to the soft outer shell (8) and specifically to the lateral inner walls of the outer shell without a cover, or the hard inner core (1, 12) with its surface facing the shaft is firmly connected to the inner surface of the soft outer shell cover (8a);

Fusaro Ingeborg Description Page 4

15. the hard inner core (1, 12)) with its surface facing the shaft is firmly connected to the inner surface of the soft outer shell cover (8a) and the lateral inner walls of the outer shell (8); the shell is not removable.

The desired goals can be achieved in this particularly simple way. The design of the further development of the utility models and main patents is characterized by the fact that, as described above, the heel has a hard, inelastic core (1) and an elastic outer shell (6), the height, depth and width of which are determined by changing the shape of the hard core (la, lb, 1c, 15) (4, 5, 5a, 5b).

The outer shell (6) is loosely (6a) or firmly connected to the hard core (1) (8, 8a).

With and without a cover made of soft elastic material (9), the fastening is carried out in a known manner, whereby the cover has a recess for a metal or hard plastic ring, which gives the screw strength in the soft casing path.

The outer surfaces of the soft shell are designed with or without grooves. The core piece is placed in the injection mold before the injection process or inserted into the finished shell after the injection process.

5. Effects

The heel structure according to the invention enables a shoe that has a pressure-relieving effect due to its heel and can be used in almost all heel areas on elevated footwear.

According to the invention according to claims 1 to 22, the shock-absorbing, raised shoe heel is the solution to preventable health damage. The further developments described above enable even more cost-effective production for cheaper shoe products where the exchangeability of the cover is not worthwhile and the removal of the cover is possible by changing the shape of the core pieces.

Fusaro Ingeborg Description Page 5

By omitting the already known grooves, a further fashionable design is possible, but the degree of cushioning is less. The heel variant with a molded heel patch and the pre-drilled hole in the heel core, or the independently manufactured heel patch, makes it possible to carry out repairs without removing the outer shell. In addition, heel patches of different heights create the possibility of adjusting the leg length without having to make changes to the shell.

Inserting the hard core into the injection mold before the injection molding process allows one less work step.

Fusaro Ingeborg Description Page

6. Key to symbols

Hard core;

Hard core with rounded gradation; Hard core with hooks, slanted or straight; Hard core with straight surface;

Top of the core or shell lid;

Nailing, screwing, gluing the heel to the shaft; No. 4 The outside of the core is covered by a strong layer of soft elastic material;
No. 5 Corresponding outer shell has its greatest strength in various places:

greatest thickness at the bottom towards the tread; greatest thickness at the bottom towards the tread and at the top towards the shaft ;

greatest thickness in the lower third and at the bottom towards the tread; Elastic outer shell;

Outer shell is loosely placed on the core; heel is closed at the top and bottom; Hard inner core is firmly connected to the inner walls of the soft outer shell;

Hard inner core is with its surface pointing to the shaft

firmly connected to the inner wall of the lid; No. 9 Open cover lid, injection-molded on one side onto the wall of the outer cover in one step and closed by means of pressure nipples or locking grooves;

Metal or hard plastic ring around the fixing screw; Soft outer shell with molded grooves; Hollow core;

Fastening with pressure pin and nails;

Soft outer shell with smooth outer surfaces without grooves; Hard inner core runs almost to the end of the heel to the tread;

Flanging of the soft outer shell, gradation of the hard core; heel with independent heel patch;

No. 18 a No. 18 No. 19 No. 20 No. 21 a No. 21 b No. 21

Fusaro Ingeborg Description Page 8

Single heel patch at normal height;

Heel patch individually with increased height; sole and heel made in one piece; sole and heel made in two pieces, heel independent:

Parallel tapering of the core to the walls of the outer shell;

Concave tapering of the core in the lower third, the thickness of the outer shell increases in this area; Tapering of the core up to the lower third, then convex bulge of the core piece;

An embodiment is explained using figures 1 to 18.

Show it:

Fig. 1 Longitudinal section of a stiletto heel with round stepped core, flanged outer shell, removable.

Fig. 2 Cross section of a heel with hollow core, stepped core, flanged outer shell, removable.

Fig. 3 Longitudinal section of a stiletto heel with a straight core surface and a firmly attached cover.

Fig. 4 Cross section of a heel with hollow core, with straight graduated core, flanged outer shell, removable.

Fig. 5 Longitudinal section of a stiletto heel with straight surface of the core piece, without lid, core piece firmly connected to the inner side walls of the outer shell.

Fig. 6 Longitudinal section of a stiletto heel with hooked stepped core piece, flanged outer shell, convex shape on the underside of the core piece.

Fig. 7 Longitudinal section of a stiletto heel with a straight core on the surface, outer shell is injection-molded with a lockable lid, removable.

Fig. 8 Cross section of a heel with hollow core, straight surface, cover firmly connected to the core.

Fig. 9 Magnification of the gradations of the hard core, flanging of the outer shell, longitudinal section.

Fusaro Ingeborg Description Page 9

Fig. 10 Stiletto heel, longitudinal section with independent heel patch.

Fig. 11 Longitudinal section of heel patch at normal height and raised height.

Fig. 12 Stiletto heel side view with grooves on the outer surface.

Fig. 13 Stiletto heel side view without grooves on the outer surface.

Fig. 14 Longitudinal section of a stiletto heel with an inner core that extends almost to the end of the heel towards the tread.

Fig. 15 Longitudinal section of a stiletto heel with a straight core on the surface, with outer cover, lockable, removable.

Fig. 16 Longitudinal section of a wedge heel with sole molded from one piece, with stepped core, flanged outer shell, removable.

Fig. 17 Longitudinal section of a wedge heel, made from one piece, sole with heel injected, with cover, straight surface of the core piece.

Fig. 18 Longitudinal section of a wedge heel, independently injected, with stepped core piece, flanged outer shell, removable.

In the figures, the heel is closed at the top and bottom (7), with a hard, inelastic core (1) in various shapes (la, Ib, Ic, 15), covered on the outside with a strong layer of soft-elastic material (4), which, as a correspondence to the hard core (1), has its greatest thickness at various points (5, 5a, 5b), called the outer shell (6), which is loosely placed on the core (6a), or is firmly connected (8, 8a), which has a closable or molded-on lid (9) with a fastening ring around the screw (3, 10), a flange (16), the outer surfaces are designed with or without grooves (11, 14); the heel consists of an independent heel patch (17) and repair part (18, 18a), or the heel patch is injected in one process with the walls of the outer shell (6) and the core has various tapers towards the heel end (21, 21a, 21b), the heel is injected as an independent part (19) or as a unit sole with heel (20).

- 10 -

Fusaro Ingeborg Description Page 10

Fig. 10 shows the hard core piece (1), with a straight surface (1 c) to the inner surface of the closable cover (9) of the soft elastic outer shell (6), which envelops the core (4) from a strong layer of soft material with high inherent damping (4), which has its greatest strength in the unloaded state when the heel spot is manufactured independently on the shell cover (5a), when manufactured with a heel part on the heel spot (5), runs parallel to the walls of the inner core (21), closes the heel all around (7) and that the heel is attached to the surface (2) with screwing, nailing, gluing (3) and a hard plastic ring (10) around the screw.

Claims (3)

FUSARO Ingeborg 8000 Munich 90 Expectations Claim 1: Shoe heel of greater height, cushioned, in stiletto or conical wedge shape, characterized in that it has a hard, inelastic core, solid (1) or hollow (12), and that this hard core (1) is covered on the outside (4) by a strong layer of soft-elastic material with high inherent damping, and that depending on the shape of the hard core piece (la, Ib, Ic), the cover has its greatest strength at different points (5, 5a, 5b) and that the heel has a vertical part that can be elastically compressed in the direction of its longitudinal axis due to the soft-elastic outer cover (6) and that the heel with its upper side (2) is nailed, screwed, glued (3) or fastened with a pressure pin (13) and nails or in some other way in a known manner to the underside of the upper shoe _# - Claim 2: Shoe heel according to claim 1, characterized in that the soft elastic outer shell (6) is higher than the hard inner core (1) in the unloaded state. Claim 3: Shoe heel according to claims 1 and 2, characterized in that the heel is closed at the top and bottom (7). The heel is closed by the core piece and the clamped outer walls of the outer shell (2) or the outer shell cover (2) in a known manner. Claim 4: Shoe heel according to claims 1 to 3, characterized in that the soft outer shell is loosely placed on the core (6a). Fusaro Ingeborg Claims Page 2 Claim 5: Shoe heel according to claims 1 to 4, characterized in that the hard inner core (1) has different shapes pointing towards the shaft, the soft elastic outer shell corresponds to this on the inner walls (6) so that: 1. the upper shape of the core piece has a rounded step (la) towards the shaft and the outer shell has a flange; (16); 2. the upper shape of the core piece facing the shaft has an oblique or straight hook shape of the gradation (Ib) and the outer shell has a flange (16); 3. the upper shape of the core piece facing the shaft, a straight surface without gradation (Ic) and the outer shell has a lid. All three variants have a removable cover. Claim 6: Shoe heel according to claims 1 to 5, characterized in that the shape of the hard core piece on the side walls tapers towards the tread surface in parallel (21), concave (21a) and convex (21b) designs, the inner walls of the outer shell correspond to this (5,5a,5b). Claim 7: Shoe heel according to claims 1 to 6, characterized in that the shape of the outer walls of the elastic outer shell results from the prepared injection mold. Claim 8: Shoe heel according to claims 1 to 7, characterized in that the cover is injection-molded on one side to the walls of the soft outer cover (6) in one operation, overlaps the side walls of the outer cover and is closed with pressure nipples or corresponding closure grooves (9) after insertion of the hard core piece (1), the cover is thereby removable; Claim 9: Shoe heel according to claims 1 to 8, characterized in that a metal ring or hard plastic ring (10) is placed around the fastening screw in a recess of the outer shell cover, which ensures the stability of the screw (3) in the soft shell path of the outer shell. Fusaro Ingeborg Claims Page 3 Claim 10: Shoe heel according to claims 1 to 9, characterized in that the soft outer shell has molded grooves (11). Claim 11: Shoe heel according to claims 1 to 10, characterized in that the soft outer shell has a smooth surface without grooves (14). Claim 12: Shoe heel according to claims 1 to 11, characterized in that the heel is manufactured with an independent heel patch (17) and that the heel patch consists of the same material as the outer shell, to which one or more pins made of hard plastic are foamed or cast or are injected in one process. Claim 13: Shoe heel according to claims 1 to 12, characterized in that the heel patch consists of the same soft elastic material as the outer shell of the heel, to which one or more fastening pins made of inelastic hard plastic are attached (17, 18).
Claim 14: Shoe heel according to claims 1 to 13, characterized in that the independently manufactured heel patch exists in different heights or thicknesses (18, 18a). Claim 15: Shoe heel according to claims 1 to 14, characterized in that pre-drilled holes are already present in the core piece for the heel piece to be used for its pins during repairs. The heel is then manufactured as in claims 1 to 11. Claim 16: Shoe heel according to claims 1 to 15, characterized in that the hard inner core (1) extends almost to the heel end, towards the tread surface -A- Fusaro Ingeborg Claims Page 4 Claim 17: Shoe heel according to claims 1 to 16, characterized in that the heel is manufactured as an independent part or as a sole-heel unit. The sole is manufactured from the same material as the heel, or the sole consists of a different material (19, 20). Claim 18: Shoe heel according to claims 1 to 17, characterized in that the hard core piece is manufactured independently and is inserted after the soft outer shell has solidified (1, 6). Claim 19: Shoe heel according to claims 1 to 17, characterized in that the hard core piece is inserted into the injection mold before the soft outer shell is molded (1, 6). Claim 20: Shoe heel according to claims 1 to 3, 6 to 7, 9 to 19, characterized in that the hard inner core (1, 12) is firmly connected to the soft outer shell (8), namely on the lateral inner walls of the outer shell. Claim 21: Shoe heel according to claims 1 to 3, 6 to 7, 9 to 19, characterized in that the hard inner core (1, 12) with its surface facing the shaft is firmly connected to the inner surface of the soft outer shell cover (8a). Claim 22: Shoe heel according to claims 1 to 3, 6 to 7, 9 to 21, characterized in that the hard inner core (1, 12) with its surface facing the shaft is firmly connected (8) to the inner surface of the soft outer shell cover (8a) and the lateral inner walls of the outer shell (8).