Footlet

Abstract

A footlet (1) is provided with a heel portion (2), a toe portion (6) and a middle portion (4) interposed between the heel portion and the toe portion. The middle portion comprises lateral sides extending between the heel portion and the toe portion on either side. The footlet is completely manufactured by reciprocating knitting. The heel portion is provided with a thread comprising an anti-slip agent, which thread is incorporated in the heel portion by knitting.

Claims

1. A footlet comprising: a heel portion, a toe portion, and a middle portion located between the heel portion and the toe portion, wherein the middle portion comprises: lateral sides that extend between the heel portion and the toe portion on either side, wherein said footlet being manufactured completely by means of reciprocating knitting, and wherein the heel portion comprises a total thread that comprises an anti-slip agent, the total thread that comprises the anti-slip agent further comprising a carrier thread having a first diameter and the total thread that comprises the anti-slip agent having a second diameter, the second diameter being larger than the first diameter which total thread is incorporated in the heel portion by reciprocating knitting, and a cross-section of the total thread has a first portion that is the carrier thread and a second portion that is the anti-slip agent.

2. A footlet according to claim 1, wherein the anti-slip agent comprises an elastomer, such as silicones.

3. A footlet according to claim 1, wherein the total thread that comprises the anti-slip agent comprises the carrier thread of a natural or synthetic material.

4. A footlet according to claim 1, wherein the heel portion comprises a knitted edge portion that forms a collar, said edge portion comprising with the total thread comprising the anti-slip agent.

5. A footlet according to claim 4, wherein said edge portion is folded over such that the edge portion comprises a first edge sub-portion facing the toe portion and a second edge sub-portion remote from the toe portion.

6. A footlet according to claim 5, wherein of the edge portion, only the first edge sub-portion facing the toe portion comprises the total thread comprising the anti-slip agent.

7. A footlet according to claim 1, wherein the heel portion is knitted at least in part with at least two threads, wherein one of said at least two threads is the total thread comprising the anti-slip agent.

8. A footlet according to claim 7, wherein another one of said at least two threads is an elastic thread.

9. A footlet according to claim 7, wherein the total thread comprising the anti-slip agent is located mainly at a side of the heel portion facing the toe portion, while another one of the at least two threads is located mainly at a side of the heel portion remote from the toe portion.

10. A footlet according to claim 1, wherein the total thread comprising the anti-slip agent is located over a portion of the heel.

11. The footlet of claim 1, wherein the total thread comprising the anti-slip agent is incorporated in the heel portion by reciprocating knitting when the heel portion is being knitted.

12. The footlet of claim 1, wherein the anti-slip agent comprises silicone.

13. A footlet according to claim 1, wherein the carrier thread is a synthetic material.

14. A footlet according to claim 1, wherein the carrier thread has a circular cross-section of the first diameter and the total thread that comprises anti-slip agent has a circular cross-section of the second diameter.

15. A footlet comprising: a heel portion; a toe portion; and a middle portion located between the heel portion and the toe portion, which middle portion comprises lateral sides that extend between the heel portion and the toe portion on either side, wherein the footlet being manufactured completely by reciprocating knitting, wherein the heel portion consists essentially of knitted threads and the knitted threads comprise a total thread comprising an anti-slip agent, wherein the total thread comprising the anti-slip agent comprises the anti-slip agent when the total thread is incorporated in the heel portion by the reciprocating knitted, and a cross-section of the total thread has a first portion that is the carrier thread and a second portion that is the anti-slip agent.

16. A footlet according to claim 15, wherein the total thread comprising the anti-slip agent is a carrier thread of a natural or synthetic material having the anti-slip agent thereon.

17. The footlet of claim 15, wherein the total thread comprising the anti-slip agent is incorporated in the heel portion by reciprocating knitting when the heel portion is being knitted.

18. The footlet of claim 1, wherein the heel portion consists essentially of knitted threads.

19. The footlet of claim 1, wherein the heel portion consists of knitted threads.

20. The footlet of claim 1, wherein the anti-slip agent is only present in the heel portion.

21. The footlet of claim 1, wherein the anti-slip agent is not provided by spraying, painting or gluing the anti-slip agent to the footlet.

22. The footlet of claim 15, wherein no anti-slip agent is sprayed, painted or glued to the footlet after knitting.

Description

(1) The invention will now be explained in more detail with reference to a drawing, in which:

(2) FIG. 1 is a perspective view of a footlet according to the invention;

(3) FIG. 2 is a side elevation of the footlet of FIG. 1 provided around a person's foot, said foot being present in a shoe; and

(4) FIGS. 3A-3C, 4A-4C and 5A-5B are partial cross-sectional views of various embodiments of a heel portion of a footlet according to the invention.

(5) Corresponding parts have been given the same reference numerals in the figures.

(6) FIG. 1 shows a footlet 1 according to the invention manufactured on a knitting machine with reciprocating knitting movements only.

(7) The footlet 1 is provided with a heel portion 2, a middle portion 4 connected to the heel portion 2 via lines 3 formed by knitting, and a toe portion 6 connected to the middle portion 4 via lines 5 formed by knitting. The desired shape of the footlet 1 can be obtained through increasing and decreasing during the reciprocating knitting process. The middle portion 4 comprises lateral sides 7, 8 that extend between the heel portion 2 and the toe portion 6 on either side. The footlet 1 is further provided with a first edge sub-portion 9 located adjacent the heel portion 2 and a second edge sub-portion 10 located adjacent the toe portion 6. A method of manufacturing such a footlet 1 is described in WO2008072048A1.

(8) FIG. 2 shows a person's foot 11 fitted with the footlet 1 of FIG. 1. The heel portion 2 is laid around the heel of the foot 11 here. The toe portion 6 lies over the toes of the foot 11. The middle portion 4 extends with a bottom portion 12 along the lower side of the foot 11 and with lateral portions 13, 14 along the lateral sides of the foot 11. The foot 11 lies with the footlet 1 around it inside a shoe 15 of which only a portion is shown for reasons of clarity.

(9) The heel portion 2 is provided with a thread (see FIGS. 3A, 3B) comprising an anti-slip agent, preferably over an edge portion 16, which thread was provided during the knitting of the footlet 1. The thread comprising an anti-slip agent was provided in the heel portion 2 by means of knitting. The thread is preferably composed of a carrier thread of a natural or synthetic material, such as cotton or nylon, on which silicones were provided as the anti-slip agent.

(10) The thread preferably has a substantially circular cross-section, the carrier thread having a first diameter and the total thread comprising the anti-slip agent having a larger, second diameter. The ratio of the first diameter to the second diameter is such that the surface area of the cross-section of the carrier thread accounts for approximately half the surface area of the cross-section of the complete thread comprising the anti-slip agent.

(11) The manufacture of such a thread comprising an anti-slip agent is known per se and will accordingly not be dealt with in any detail.

(12) The FIGS. 3A-3C show three different embodiments of the footlet 1 wherein the heel portion 2 is provided with a knitted edge portion 16 that constitutes a collar. The edge portion 16 is folded over such that the edge portion 16 comprises a first edge sub-portion 17 facing the toe portion 6 and a second edge sub-portion 18 remote from the toe portion 6. During knitting of the edge portion 16, the second edge sub-portion 18 is knitted first and after that the first edge sub-portion 17. As soon as the first edge sub-portion 17 has been formed, the end 19 of the second edge sub-portion 18 is joined to the end 20 of the first edge sub-portion 17 by knitting. Then the remaining portion of the heel portion 2 and the footlet 1 is knitted.

(13) In the embodiment of the footlet 1 shown in FIG. 3A, the thread comprising the anti-slip agent and an elastic thread are knitted simultaneously with the knitting of the second edge sub-portion 18 and the first edge sub-portion 17. The elastic thread is made of, for example, a polyurethane such as Lycra, Elastan, Dorlastan or Spandex. The elastic thread leads to the creation of an elastic edge portion 16 by which the footlet 1 is pressed against the foot 11. The anti-slip agent, such as silicones. effectively prevents slipping between the foot 11 and the edge portion 16, i.e. the heel portion 2 joined thereto.

(14) In the embodiment of the footlet 1 shown in FIG. 3B, the thread comprising the anti-slip agent and the elastic thread are knitted simultaneously with the knitting of the first edge sub-portion 17 only. For the second edge sub-portion 18 only the elastic thread is used.

(15) Less silicone material is necessary in this way. In addition, the thread comprising the anti-slip agent lies against the foot 11 only, whereas the comparatively smooth elastic thread lies against the inner side of the shoe 15.

(16) In the embodiment of the footlet 1 shown in FIG. 3C, a portion 21 located at a distance to the edge portion 16 is knitted either with the thread comprising the anti-slip agent only or with the thread comprising the anti-slip agent and the thread with which the rest of the heel portion 2 is knitted. This thread may be of nylon, cotton or any other material, as desired.

(17) If the portion 21 is knitted with more than one thread, this is preferably done such that the thread comprising the anti-slip agent is located mainly at a side of the heel portion 2 that faces the toe portion 6 while the other thread is mainly located at a side of the heel portion 2 remote from the toe portion 6. Such a knitting technique is known per se and will accordingly not be explained in any detail.

(18) The FIGS. 4A-4C show three alternative embodiments of the footlet 1 wherein the heel portion 2 is provided with a knitted edge portion 26 that forms a collar. The edge portion 26 is folded over such that the edge portion 26 comprises a first edge sub-portion 27 facing the toe portion 6 and a second edge sub-portion 28 remote from the toe portion 6. During knitting of the edge portion 26, the first edge sub-portion 27 is knitted first and after that the second edge sub-portion 28. As soon as the second edge sub-portion 28 has been formed, the end 29 of the first edge sub-portion 27 is joined to the end 30 of the second edge sub-portion 28 by knitting. Then the remaining portion of the heel portion 2 and the footlet 1 is knitted.

(19) In the embodiment of the footlet 1 shown in FIG. 4A, the thread comprising the anti-slip agent and an elastic thread are knitted simultaneously with the knitting of the first edge sub-portion 27 and the second edge sub-portion 28.

(20) In the embodiment of the footlet 1 shown in FIG. 4B, the thread comprising the anti-slip agent and the elastic thread are knitted simultaneously with the knitting of the first edge sub-portion 27 only. For the second edge sub-portion 28 the elastic thread is only used.

(21) In the embodiment of the footlet 1 shown in FIG. 4C, a portion 31 located at a distance to the edge portion 26 is knitted either with the thread comprising the anti-slip agent only or with the thread comprising the anti-slip agent and the thread with which the rest of the heel portion 2 is knitted.

(22) The FIGS. 5A-5B show two further embodiments of the footlet 1 wherein the heel portion 2 is provided with a knitted edge portion 36 that comprises a single edge sub-portion 37 that forms a collar.

(23) In the embodiment of the footlet 1 shown in FIG. 5A, the thread comprising the anti-slip agent and an elastic thread are knitted simultaneously with the knitting of the edge sub-portion 37.

(24) In the embodiment of the footlet 1 shown in FIG. 5B, a portion 41 located at a distance to the edge portion 36 is knitted either with the thread comprising the anti-slip agent only or with the thread comprising the anti-slip agent and the thread with which the rest of the heel portion 2 is knitted.

(25) It is also possible to manufacture the footlet 1 entirely or partly by means of circular knitting. This has the disadvantage, however, that stitched seams are unavoidable.

(26) It is possible to use alternative materials instead of silicones.

LIST OF REFERENCE NUMERALS

(27) 1. footlet 2. heel portion 3. line formed by knitting 4. middle portion 5. line formed by knitting 6. toe portion 7. lateral side 8. lateral side 9. edge portion 10. edge portion 11. foot 12. bottom portion 13. lateral portion 14. lateral portion 15. shoe 16. edge portion 17. first edge sub-portion 18. second edge sub-portion 19. end 20. end 21. portion 26. edge portion 27. first edge sub-portion 28. second edge sub-portion 29. end 30. end 31. portion 36. edge portion 37. edge sub-portion 41. portion